WO2023168638A1 - 无线通信的方法及设备 - Google Patents

无线通信的方法及设备 Download PDF

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Publication number
WO2023168638A1
WO2023168638A1 PCT/CN2022/080029 CN2022080029W WO2023168638A1 WO 2023168638 A1 WO2023168638 A1 WO 2023168638A1 CN 2022080029 W CN2022080029 W CN 2022080029W WO 2023168638 A1 WO2023168638 A1 WO 2023168638A1
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WIPO (PCT)
Prior art keywords
delay
target
field
moment
buffer
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PCT/CN2022/080029
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English (en)
French (fr)
Inventor
卢刘明
黄磊
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to PCT/CN2022/080029 priority Critical patent/WO2023168638A1/zh
Priority to EP22930279.9A priority patent/EP4492892A4/en
Priority to CN202280093124.1A priority patent/CN118872350A/zh
Publication of WO2023168638A1 publication Critical patent/WO2023168638A1/zh
Priority to US18/825,845 priority patent/US20240430740A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0278—Traffic management, e.g. flow control or congestion control using buffer status reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Definitions

  • the embodiments of the present application relate to the field of communications, and more specifically, to a wireless communication method and device.
  • the non-Access Point Station can actively report the buffer status report (Buffer Status Report, BSR), or it can trigger the report based on the access point station (Access Point Station, AP STA). BSR.
  • BSR Buffer Status Report
  • the BSR is reported by the non-AP STA to assist the AP STA in allocating uplink multi-user (MU) resources based on the uplink (UL) transmission requirements of the non-AP STA.
  • MU multi-user
  • UL uplink
  • the BSR reported by non-AP STA at this stage cannot meet the transmission requirements of delay-sensitive services.
  • Embodiments of the present application provide a wireless communication method and device.
  • the first station can send buffer status report information based on the urgency of the data to be transmitted to the second station through the first BSR. Therefore, the second station can send buffer status report information based on the first BSR.
  • UL MU resources are allocated to meet the transmission requirements of delay-sensitive services.
  • a wireless communication method which method includes:
  • the first station sends the first BSR to the second station;
  • the first BSR at least includes first status report information
  • the first status report information is buffer status report information based on the urgency of the data to be transmitted.
  • a wireless communication method which method includes:
  • the second station receives the first BSR sent by the first station
  • the first BSR at least includes first status report information
  • the first status report information is buffer status report information based on the urgency of the data to be transmitted.
  • a third aspect provides a site device for performing the method in the above first aspect.
  • the site device includes a functional module for executing the method in the first aspect.
  • a fourth aspect provides a site device for performing the method in the above second aspect.
  • the site device includes a functional module for executing the method in the above second aspect.
  • a site device including a processor and a memory; the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, so that the site device executes the above-mentioned first aspect Methods.
  • a site device including a processor and a memory; the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, so that the site device performs the above-mentioned second aspect. Methods.
  • a seventh aspect provides an apparatus for implementing the method in any one of the above first to second aspects.
  • the device includes: a processor, configured to call and run a computer program from a memory, so that a device installed with the device executes the method in any one of the above-mentioned first to second aspects.
  • An eighth aspect provides a computer-readable storage medium for storing a computer program that causes a computer to execute the method in any one of the above-mentioned first to second aspects.
  • a computer program product including computer program instructions, which cause a computer to execute the method in any one of the above-mentioned first to second aspects.
  • a tenth aspect provides a computer program that, when run on a computer, causes the computer to execute the method in any one of the above-mentioned first to second aspects.
  • the first station can send buffer status report information based on the urgency of the data to be transmitted to the second station through the first BSR. Therefore, the second station can report information based on the urgency of the data to be transmitted based on the urgency of the data to be transmitted. Allocate UL MU resources based on transmission requirements to meet the transmission requirements of delay-sensitive services.
  • Figure 1 is a schematic diagram of a communication system architecture applied in an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a BSR control subdomain provided by this application.
  • Figure 3 is a schematic diagram of possible problems during the transmission process of a delay-sensitive service provided by this application.
  • Figure 4 is a schematic interactive flow chart of a wireless communication method provided according to an embodiment of the present application.
  • Figure 5 is a schematic diagram of the delay expiration time difference of an MSDU or A-MSDU provided according to an embodiment of the present application.
  • Figure 6 is a schematic diagram of the delay expiration time difference of STA1, STA2 and STA3 according to an embodiment of the present application.
  • Figure 7 is a schematic diagram of a trigger type subfield provided according to an embodiment of the present application.
  • Figure 8 is a schematic diagram of a trigger association general information field provided according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of another trigger association general information field provided according to an embodiment of the present application.
  • Figure 10 is a schematic diagram of a second BSR control field provided according to an embodiment of the present application.
  • Figure 11 is a schematic diagram of a third BSR control field provided according to an embodiment of the present application.
  • Figure 12 is a schematic diagram of a r-TWT service cycle buffer delay-sensitive service data status reporting provided according to an embodiment of the present application.
  • Figure 13 is a schematic diagram of buffer delay-sensitive service data status reporting based on AP STA trigger scheduling scenario provided according to an embodiment of the present application.
  • Figure 14 is a schematic block diagram of a site device provided according to an embodiment of the present application.
  • Figure 15 is a schematic block diagram of a site device provided according to an embodiment of the present application.
  • Figure 16 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
  • Figure 17 is a schematic block diagram of a device provided according to an embodiment of the present application.
  • Figure 18 is a schematic block diagram of a communication system provided according to an embodiment of the present application.
  • WLAN Wireless Local Area Networks
  • WiFi Wireless Fidelity
  • other communication systems such as: Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity, WiFi) or other communication systems.
  • WLAN Wireless Local Area Networks
  • WiFi Wireless Fidelity
  • WiFi Wireless Fidelity
  • the communication system 100 applied in the embodiment of the present application is shown in Figure 1 .
  • the communication system 100 may include an access point (Access Point, AP) 110, and a station (Station, STA) 120 that accesses the network through the AP 110.
  • Access Point AP
  • STA station
  • the AP can be called AP STA, that is, in a certain sense, the AP is also a kind of STA.
  • STA may be called non-AP STA (non-AP STA).
  • STAs may include AP STAs and non-AP STAs.
  • Communication in the communication system 100 may be communication between the AP and the STA, communication between the STA and the previous STA, or communication between the STA and another (peer STA), where the peer STA may refer to the device communicating with the STA peer.
  • the peer STA may be an AP or a non-AP STA.
  • the AP is equivalent to a bridge connecting the wired network and the wireless network. Its main function is to connect various wireless network clients together and then connect the wireless network to the Ethernet.
  • the AP device can be a terminal device with a WiFi chip (such as a mobile phone) or a network device (such as a router).
  • the role of STA in the communication system is not absolute.
  • the mobile phone when the mobile phone is connected to the router, the mobile phone is the STA, and when the mobile phone serves as a hotspot for other mobile phones, the mobile phone acts as an AP.
  • AP and STA can be devices used in the Internet of Vehicles, IoT nodes, sensors, etc. in the Internet of Things (IoT), smart cameras, smart remote controls, smart water meters, etc. in smart homes, as well as smart cities Sensors etc.
  • IoT Internet of Things
  • smart cameras smart cameras
  • smart remote controls smart water meters
  • smart homes as well as smart cities Sensors etc.
  • the STA may support the 802.11be standard.
  • STA can also support a variety of current and future 802.11 family WLAN standards such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b and 802.11a.
  • the AP may be a device supporting the 802.11be standard.
  • the AP can also be a device that supports multiple current and future 802.11 family WLAN standards such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.
  • the AP 110 and/or STA 120 can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; can also be deployed on water (such as ships); can also be deployed in the air (such as aircraft, balloons and satellites, etc.).
  • the STA 120 may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (Virtual Reality, VR) device, an augmented reality (Augmented) device that supports WLAN/WiFi technology.
  • Reality (AR) equipment wireless equipment in industrial control, set-top boxes, wireless equipment in self-driving, vehicle-mounted communication equipment, wireless equipment in remote medical, smart grid Wireless devices in grid, wireless devices in transportation safety, wireless devices in smart city or wireless devices in smart home, vehicle-mounted communication equipment, wireless communication chips/application-specific integration Circuit (application specific integrated circuit, ASIC)/system on chip (System on Chip, SoC), etc.
  • ASIC application specific integrated circuit
  • SoC System on Chip
  • the STA 120 may also be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for applying wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes, etc.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not just hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized devices that can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, and those that only focus on a certain type of application function and need to cooperate with other devices such as smartphones.
  • the frequency bands that WLAN technology can support may include but are not limited to: low frequency bands (2.4GHz, 5GHz, 6GHz) and high frequency bands (60GHz).
  • Figure 1 exemplarily shows one AP and two STAs.
  • the communication system 100 may include multiple APs and other numbers of STAs, which are not limited in the embodiments of the present application.
  • the communication equipment may include an AP 110 and an STA 120 with communication functions.
  • the AP 110 and the STA 120 may be the specific equipment described above, which will not be described again here; the communication equipment also It may include other devices in the communication system 100, such as network controllers, gateways and other network entities, which are not limited in the embodiments of this application.
  • the "instruction” mentioned in the embodiments of this application may be a direct instruction, an indirect instruction, or an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B. relation.
  • correlate can mean that there is a direct correspondence or indirect correspondence between the two, it can also mean that there is an associated relationship between the two, or it can mean indicating and being instructed, configuration and being. Configuration and other relationships.
  • predefinition or “preconfiguration” can be realized by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in the device (for example, including STA and network equipment).
  • predefined can refer to what is defined in the protocol.
  • the "protocol” may refer to a standard protocol in the communication field, which may include, for example, the WiFi protocol and related protocols applied in future WiFi communication systems. This application does not limit this.
  • Wireless devices support multi-band communication, for example, communicating on 2.4GHz, 5GHz, 6GHz and 60GHz frequency bands at the same time, or communicating on different channels in the same frequency band (or different frequency bands) at the same time, improving communication throughput and/or between devices or reliability.
  • This kind of device is usually called a multi-band device, or a multi-link device (Multi-Link Device, MLD), sometimes also called a multi-link entity or a multi-band entity.
  • Multilink devices can be access point devices or site devices. If the multilink device is an access point device, the multilink device contains one or more APs; if the multilink device is a site device, the multilink device contains one or more non-AP STAs.
  • 802.11ax proposes a buffer status report (BSR) reporting mechanism, defines the buffer status report information for uplink multi-user operation (UL MU operation), and reports the BSR through non-AP STA to assist the AP. Allocate UL MU resources based on the uplink transmission requirements of non-AP STA.
  • BSR buffer status report
  • the BSR mechanism includes two BSR reporting methods:
  • Non-AP STA proactively reports (unsolicited BSR): non-AP STA can report in the Quality of Service (QoS) control field (Control field) or BSR control subfield (Control field) of any frame transmitted to the AP Pass BSR in subfield);
  • QoS Quality of Service
  • Control field Control field
  • BSR control subfield Control field
  • Non-AP STA reporting (requested BSR): AP sends buffer status report poll (BSRP) trigger frame (Trigger frame), non-AP STA can respond in the response sent to AP
  • BSRP buffer status report poll
  • Trigger frame Non-AP STA can respond in the response sent to AP
  • the BSR is delivered in any frame of the BSRP Trigger Frame.
  • the buffer status reported in the QoS Control field contains the queue size for a given traffic identifier (TID), while the buffer status reported in the BSR Control field contains the access category index (ACI) bitmap ( ACI bitmap), variable stream identifier (delta TID), high priority access type (ACI High) and two queue sizes (Queue Size High and Queue Size All) subfields information, as shown in Figure 2.
  • ACI access category index
  • ACI bitmap ACI bitmap
  • delta TID variable stream identifier
  • ACI High high priority access type
  • Two queue sizes Queue Size High and Queue Size All subfields information
  • the ACI bitmap subfield indicates the access category of the reported buffer status
  • the Delta TID subfield is used together with the ACI Bitmap subfield to indicate the number of TIDs in the buffer status that the STA is reporting;
  • the ACI High subfield indicates the access type (access category, AC) corresponding to the BSR indicated by the Queue Size High subfield;
  • the Queue Size High subfield indicates the buffer traffic size of the AC identified by ACI High to be sent to a specific STA, where the specific STA is identified by the receiver address of the frame containing the BSR Control subfield;
  • the Queue Size All subfield indicates the buffer traffic size of all ACs identified by the ACI Bitmap subfield that are intended to be sent to a specific STA identified by the receiver address of the frame containing the BSR Control subfield.
  • r-TWT Restricted Target Wake Time
  • Target Wake Time first appeared in the 802.11ah "Wi-Fi HaLow" standard, which is used to support energy conservation in large-scale IoT environments.
  • the TWT mechanism adds support for trigger-based uplink transmission based on 802.11ah, thereby expanding the scope of TWT work.
  • TWT a schedule is established between STA and AP (the schedule is agreed between STA and AP), and the schedule is composed of TWT time periods.
  • the STA will wake up, wait for the trigger frame sent by the AP, and perform a data exchange. When this transfer is completed, it returns to sleep state.
  • Each STA can negotiate independently with the AP, and each STA has an independent TWT time period.
  • TWT allows the AP to manage the behavior of the Basic Service Set (BSS) to mitigate inter-station contention and reduce the amount of time a station in power-managed mode is awake by allowing stations to operate in non-overlapping time domains and/or frequencies. This is achieved by operating within a domain and concentrating frame exchanges on predefined service periods. Therefore, in order to ensure the application effect of TWT, the AP generally requires that all associated sites in the BSS can be added to the TWT so that the AP can schedule; according to the TWT protocol of 802.11ax, High-efficiency (HE) (specifically refers to 802.11ax ) AP will request all associated sites that claim to support TWT to participate in TWT.
  • HE High-efficiency
  • non-AP sites After receiving the AP's instruction to join TWT, non-AP sites should negotiate individually customized TWT (individual TWT) protocols, or join broadcast TWT (broadcast TWT). ).
  • the TWT service period (service period, SP) includes trigger-enabled SP and non-trigger-enabled SP.
  • 802.11ax stipulates that the TWT scheduled station cannot transmit frames to the TWT scheduling AP outside the broadcast TWT SP.
  • the TWT scheduled station cannot transmit trigger-based physical layer protocol data that is not carried in the HE.
  • the frames of the unit (Physical layer protocol data unit, PPDU) are sent to the TWT to schedule the AP.
  • the r-TWT is based on broadcast TWT.
  • the TWT scheduling AP (TWT scheduling AP) carries the broadcast TWT element (broadcast TWT element) in the broadcast beacon frame to indicate the broadcast TWT service period (broadcast TWT SP).
  • the AP transmits the trigger frame or the downlink buffer unit (BU) to the TWT scheduled site (TWT scheduled STA).
  • BU downlink buffer unit
  • 802.11be proposes the operation of r-TWT to allow APs to utilize enhanced medium access protection and resource reservation mechanisms to provide more predictable, lower worst-case delay and jitter for the transmission of low-latency services, and Higher reliability.
  • r-TWT mainly adds two channel access rules in terms of channel access: Extremely high throughput (EHT) non-AP STA, as a transmission opportunity (TXOP) owner, should The TXOP is obtained outside the r-TWT service cycle, and it should be ensured that its TXOP ends before the start of any r-TWT service cycle; the EHT AP will schedule a quiet interval that overlaps with the r-TWT service cycle.
  • the operations of legacy STAs that support Quiet Element (Quiet Element) are blocked within the TWT SP, but the blocking operations within the quiet time interval are invalid for EHT non-AP STAs.
  • the transmission process of delay-sensitive services (or low-latency services) defined by 802.11be is shown in Figure 3.
  • the non-AP station (non-AP STA) sends a stream classification service (SCS) request carrying a Quality of Service (QoS) characteristic element (QoS Characteristics element) to the AP, where the QoS characteristic element contains Recommended parameters to meet the transmission requirements of delay-sensitive services, including direction (such as upstream), flow identification (TID), minimum service interval (Minimum Service Interval), maximum service interval (Maximum Service Interval), minimum data rate (Minimum Data Rate), delay limit (Delay Bound), etc.
  • direction such as upstream
  • flow identification TID
  • Minimum Service Interval minimum service interval
  • Maximum Service Interval Maximum service interval
  • Minimum Data Rate Minimum Data Rate
  • Delay Bound delay limit
  • Non-AP STA performs delay-sensitive service transmission in the scheduled service period announced by the AP. For example, the AP can send trigger frames to specify which r-TWT scheduled sites perform uplink transmission, and at the same time allocate transmission resources (resource units) to each scheduled site.
  • resource unit RU
  • MRU multiple resource unit
  • MCS modulation and coding scheme
  • the approximate service interval range and transmission rate range are only determined according to the transmission requirements of delay-sensitive services.
  • the AP often processes multiple r-TWTs in the same scheduled service cycle.
  • Delay-sensitive services at TWT scheduled sites are coordinated and scheduled for transmission, and the wireless channel environment often changes. Therefore, there is a problem of how to coordinate and schedule the transmission of delay-sensitive services in real time.
  • the traffic that should be transmitted in the current service cycle SP such as SPi
  • OBSS Basic Service Set
  • the AP needs to determine the following issues to coordinate the allocation of transmission resources to one or more r-TWT scheduled sites: How much data is to be transmitted at the r-TWT scheduled site? How urgent is the data, and which data to be transmitted needs to be transmitted first.
  • the current BSR fails to provide information related to delay requirements.
  • delay-sensitive services it cannot provide information related to the urgency of sending service data in a timely manner.
  • the AP cannot schedule according to the urgency of sending delay-sensitive services at each site.
  • delay bound (Delay Bound) requirements cannot be scheduled and transmitted in real time.
  • this application proposes a solution for reporting BSR.
  • the first station can send buffer status report information based on the urgency of the data to be transmitted to the second station through the first BSR. Therefore, the second station can send buffer status report information based on the first BSR.
  • UL MU resources are allocated to meet the transmission requirements of delay-sensitive services.
  • FIG. 4 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application. As shown in Figure 4, the wireless communication method 200 may include at least part of the following content:
  • the first station sends a first BSR to the second station; wherein the first BSR at least includes first status report information, and the first status report information is buffer status report information based on the urgency of the data to be transmitted;
  • S220 The second station receives the first BSR sent by the first station.
  • the second site can allocate UL MU resources based on the transmission requirements based on the urgency of the data to be transmitted reported by the first site, thereby meeting the transmission requirements of delay-sensitive services.
  • the first station is a non-AP STA and the second station is an AP STA.
  • the first station is a non-AP STA and the second station is another non-AP STA; or the first station is an AP STA and the second station is another AP STA.
  • the first BSR may be a BSR based on the urgency of the data to be transmitted (U-BSR).
  • field may also be called “field” or “subfield”.
  • the buffer status report (BSR) defined in this application for 802.11 fails to provide information related to delay requirements. For the transmission of delay-sensitive services (or low-latency services), it cannot provide timely information related to the urgency of sending business data. , proposes a BSR (Urgency-based BSR, U-BSR) mechanism based on the urgency of the data to be transmitted, and an operation method for reporting buffer status report information during the transmission process of services with limited transmission delay requirements. In this application Schemes also apply.
  • the first status report information includes status report information of delay-sensitive service data in the buffer that meets preset urgency requirements or ranges.
  • the preset urgency requirement or range may be configured or indicated by the AP STA, or the preset urgency requirement or range may be agreed upon by a protocol, or the preset urgency requirement or range may be determined by the The first site negotiates with the second site to determine.
  • the preset urgency requirement or range is based on the status report information representation of delay-sensitive service data in the buffer of expired transmission delay associated with the service cycle; or, the preset urgency requirement or range is based on scheduling.
  • the status report information of the delay-sensitive service data in the period-related transmission delay-expired buffer indicates that the scheduling period is used to schedule the transmission of delay-sensitive services.
  • the first status report information specifically includes at least one of the following: the data size of the delay-sensitive service whose transmission delay has expired in the buffer, the transmission delay in the buffer has not expired at the first moment and the data size has expired at the second moment. The data size of time-expired delay-sensitive services.
  • the second time is later than the first time.
  • the first time is the current time
  • the second time is one of the following: the end time point of the currently allocated service period, the starting time point of the next allocated service period, the next The end time point of the assigned service period; or, the first moment is the end time point of the currently assigned service period, and the second moment is one of the following: the starting time point of the next assigned service period , the end time point of the next allocated service cycle; or, the first time is the starting time point of the next allocated service cycle, and the second time is the end time point of the next allocated service cycle .
  • the first time is the current time
  • the second time is one of the following: the end time point of the current scheduling cycle, the starting time point of the next scheduling cycle, and the end time point of the next scheduling cycle.
  • the first time is the end time of the current scheduling cycle
  • the second time is one of the following: the starting time of the next scheduling cycle, the end time of the next scheduling cycle; or, the first The time is the starting time point of the next scheduling cycle, and the second time is the ending time point of the next scheduling cycle; wherein, the scheduling cycle is used to schedule the transmission of delay-sensitive services.
  • the content of the buffer status report information is differentiated based on the urgency of the delay-sensitive service data to be transmitted, and the status report of the buffer delay-sensitive service data with expired transmission delay is based on the corresponding moment of the service period or scheduling period.
  • the first BSR may be carried by a BSR control subfield based on the urgency of the data to be transmitted, where the BSR control subfield based on the urgency of the data to be transmitted may include at least one of the following information:
  • T3 The amount of traffic in the buffer that has not yet expired at time point T2 but will expire at a given time point T3 (T3>T2, that is, T3 is later than T2).
  • the delay-sensitive service data can be indicated by the service data of the target TID (or AC).
  • the time point T1 can be set as the end time point of the currently assigned (scheduled) service period, and the time point T2 can be set as the next assigned (scheduled) service period.
  • the starting time point of the scheduled service cycle, and the time point T3 can be set as the end time point of the next assigned (scheduled) service cycle.
  • time points T1, T2, and T3 can be set in advance.
  • the service period is a service period of r-TWT
  • the first site is a scheduled site of r-TWT.
  • the time point at which the transmission delay expires refers to a Media Access Control Service Data Unit (MSDU) or an Aggregate Media Access Control Service Data Unit (MSDU) belonging to a delay-sensitive service flow.
  • Media Access Control Service Data Unit, A-MSDU starts from the time point when the local Media Access Control (Media Access Control, MAC) Service Access Point (Service Access Point, SAP) reaches the MAC sublayer and the time of the limited delay length has elapsed point; among them, the delay limit (Delay bound) is the maximum duration allowed to transmit MSDU or A-MSDU.
  • the transmission delay has expired means that the delay expiration difference of the MSDU or A-MSDU to be transmitted at the current moment is less than or equal to zero, or the transmission delay has expired means that the MSDU or A-MSDU to be transmitted has expired.
  • the delay expiration difference of the MSDU for the current moment is less than the delay expiration deviation threshold. That is, the MSDU or A-MSDU to be transmitted reaches the MAC sublayer from the MAC SAP and has not yet been transmitted after passing the delay limit (Delay bound), or the MSDU or A-MSDU to be transmitted reaches the MAC sublayer from the MAC SAP The time point has passed the Delay bound-Expire Deviation Threshold and has not yet been transmitted.
  • the transmission delay expiration means that the delay expiration difference of the MSDU or A-MSDU to be transmitted with respect to the target time is less than or equal to zero, or the transmission delay expiration means that the MSDU or A-MSDU to be transmitted is with respect to the target time.
  • the delay expiration difference at the target time is less than the delay expiration deviation threshold.
  • the target time is a time after the current time.
  • the transmission delay has not expired means that the delay expiration difference of the MSDU or A-MSDU to be transmitted with respect to the target time is greater than zero, or the transmission delay has not expired means that the MSDU or A-MSDU to be transmitted has not expired.
  • the delay expiration difference for the target time is greater than or equal to the delay expiration deviation threshold. That is, the waiting transmission time of MSDU or A-MSDU from the time point when the MAC SAP reaches the MAC sublayer is less than the delay limit (Delay bound) or less than the limited delay-delay expiration deviation threshold (Delay bound-Expire Deviation Threshold).
  • the target time is a time after the current time.
  • the delay expiration deviation threshold is the time interval between the MSDU or A-MSDU transmission start time point and the successful transmission confirmation time point.
  • the preset urgency requirement or range is based on the status report information of the delay-sensitive service data in the buffer within the delay expiration time difference limit (TimetoDelayExpire Bound) range.
  • the first status report information specifically includes the data size of delay-sensitive services in the buffer whose delay expiration difference is less than or equal to the delay expiration difference limit.
  • the delay expiry difference limit is configured or indicated by the AP STA, or the delay expiration difference limit is agreed upon by the protocol.
  • the delay expiration time difference is the time difference between the current time of the delay-sensitive service data and the transmission delay expiration time point of the delay-sensitive service data, or the delay expiration time difference. It is the time difference between the target time of the delay-sensitive service data and the expiration time point of the transmission delay of the delay-sensitive service data. Among them, the target time is a time after the current time.
  • the content of the buffer status report information is distinguished based on the urgency of the delay-sensitive service data to be transmitted and the status of the buffer delay-sensitive service data is based on the delay expiration time difference limit (TimetoDelayExpire Bound).
  • the first BSR can be carried by a BSR control subfield based on the urgency of the data to be transmitted, where the BSR control subfield (U-BSR Control subfield) based on the urgency of the data to be transmitted can include an indication need
  • the urgency range that the buffer data of the reporting status report information needs to meet is used to indicate the delay-sensitive service MSDU or A-MSDU corresponding to the delay expiration difference in the reporting buffer that is less than or equal to the delay expiration difference limit. status report information.
  • the delay expiration difference can also be called the time to the delay expiration point. Specifically, it refers to the MSDU or A-MSDU of a specific traffic flow (traffic flow) from the current moment.
  • the time difference between the transmission delay expiration time point of the MSDU or A-MSDU, as shown in Figure 5, can be stipulated: when the transmission delay expiration time point of the MSDU or A-MSDU is later than the current time, its The delay expiration difference is greater than zero; when the transmission delay expiration point of MSDU or A-MSDU is earlier than the current time, its delay expiration difference is less than zero.
  • the delay expiration difference (Time to delay expire) specifically refers to the MSDU or A-MSDU of a specific traffic flow, from the target time to the transmission delay expiration time point of the MSDU or A-MSDU.
  • the time difference can be specified: when the transmission delay expiration time point of MSDU or A-MSDU is later than the target time, the delay expiration time difference is greater than zero; when the transmission delay expiration time point of MSDU or A-MSDU is early At the target time, the delay expiration difference is less than zero.
  • the so-called delay expiration point refers to the time point when the MSDU or A-MSDU belonging to a specific service flow has passed the limited delay (delay bound) from the time point when the local MAC SAP arrives at the MAC sublayer.
  • the limited delay refers to the maximum length of time allowed to transmit MSDU or A-MSDU, measured as the time from the first MSDU or A-MSDU arriving at the MAC sublayer from the MAC SAP to the successful transmission (or retransmission) of the MSDU or A-MSDU to the destination.
  • the delay expiration difference of MSDU or A-MSDU can indicate the urgency of transmitting the MSDU or A-MSDU.
  • the smaller the delay expiration difference is within the time to live (TTL) of the MSDU or A-MSDU. Indicates that the more urgent it is to transmit this MSDU or A-MSDU.
  • the delay expiration difference can be used to reflect the delay at a certain moment.
  • the delay expiration difference of the MSDU or A-MSDU corresponding to the delay-sensitive service TID of STA2 is less than zero, indicating that the urgency of its transmission is high; the MSDU or A-MSDU corresponding to the delay-sensitive service TID of STA3
  • the delay expiration difference of MSDU is greater than zero, so the urgency of its transmission is low; while STA2 has both MSDU or A-MSDU with delay expiration difference greater than zero, and MSDU or A-MSDU with delay expiration difference less than zero.
  • the delay limit (Delay bound) of the MSDU or A-MSDU corresponding to the delay-sensitive service TID of each site can be different.
  • the data associated with the first status report information is the data in the buffer of the MSDU or A-MSDU corresponding to the target TID of the target access category (AC); and/or, the first status The data associated with the report information is the data in the buffer of the MSDU or A-MSDU corresponding to the target TID; where the target AC is the AC where the TID of the delay-sensitive service is located, and the target TID is the TID of the delay-sensitive service.
  • the first status report information specifically includes at least one of the following: the data size of the delay-sensitive service whose transmission delay has expired in the buffer, the transmission delay in the buffer has not expired at the first moment and is The data size of delay-sensitive services that expire at the second moment, and the data size of delay-sensitive services whose delay expiration difference in the buffer is less than or equal to the delay expiration difference limit.
  • the above S210 specifically includes:
  • the first station sends the first BSR to the second station within the service period; or, the first station sends the first BSR to the second station outside the service period; or, the first station schedules the second station
  • the first BSR is sent to the second station during the scheduling period for delay-sensitive service transmission; or, the first station sends the first BSR to the second station between two scheduling periods for delay-sensitive service transmission at the second station. Send this first BSR.
  • an r-TWT protocol is established between the first station and the second station, and the service period is the r-TWT service period, and the first station is the r-TWT corresponding to the r-TWT service period. Book a site.
  • the above S210 specifically includes:
  • the first station After the first station establishes the SCS flow by sending an SCS request carrying a QoS feature element, the first station sends the first BSR to the second station; wherein the QoS feature element includes a component used to satisfy delay-sensitive service transmission.
  • Recommended parameters for the requirements include at least one of the following: direction, TID, minimum service interval, maximum service interval, minimum data rate, and delay limit (Delay bound).
  • the delay limit (Delay bound) described in the embodiment of this application can be determined by the second station based on the QoS feature element sent by the first station and fed back to the first station.
  • the delay limit (Delay bound) can be determined through negotiation between the first station and the second station.
  • the above S210 specifically includes:
  • the first station actively sends the first BSR to the second station; or,
  • the first station sends the first BSR to the second station based on the trigger of the second station.
  • the first station when the first station actively sends the first BSR to the second station, the first station sends a BSR based on the urgency of the data to be transmitted in any frame transmitted to the second station.
  • the first BSR is carried in the control subfield.
  • the first station is a non-AP STA and the second station is another non-AP STA; or the first station is an AP STA and the second station is another AP STA.
  • the trigger frame sent by the second station is a buffer based on the urgency of the data to be transmitted.
  • Status report poll (urgency-based buffer status report poll, U-BSRP) trigger frame.
  • the first station is a non-AP STA and the second station is an AP STA.
  • the first station transmits the new variant of the BSR control subfield of any frame in response to the trigger frame to the second station according to the preset emergency level requirements or range indicated in the trigger frame.
  • BSR control subfield variant carries the first BSR. That is, the non-AP STA carries the new variant of the BSR control subfield of any frame transmitted to the AP STA in response to the trigger frame according to the preset emergency level requirements or range indicated in the trigger frame sent by the AP STA.
  • the first BSR is carries the first BSR.
  • the first station transmits data based on the urgency of the data to be transmitted in any frame transmitted to the second station in response to the trigger frame according to the preset emergency level requirements or ranges indicated in the trigger frame.
  • the first BSR is carried in the BSR control subfield.
  • the trigger frame includes but is not limited to at least one of the following: indication information indicating a preset emergency level requirement or range, and indicating whether to trigger a status report of all delay-sensitive business data in the reporting buffer. Indication information of the information, indication information used to indicate whether to indicate the preset emergency level requirement or range based on the service cycle.
  • the related non-AP STA reporting buffer for delay-sensitive service transmission is triggered.
  • the delay expiration difference in is less than or equal to the size of the delay-sensitive service data in TimetoDelayExpire Bound, then the relevant non-AP STA will pass it to the AP STA in response to the U-BSRP after receiving the U-BSRP trigger frame.
  • U-BSR is transmitted in any frame of Trigger Frame, and the size of delay-sensitive business data whose delay expiration difference in the buffer is less than or equal to TimetoDelayExpire Bound is reported.
  • the AP STA transmits the U-BSR in any frame passed to the AP STA in response to the U-BSRP Trigger Frame, and reports the transmission delay expiration based on the corresponding moment of the service cycle or scheduling cycle.
  • Status report information of buffer delay-sensitive business data When the U-BSRP trigger frame indicates that the relevant non-AP STA transmitting delay-sensitive services reports status report information based on the buffer delay-sensitive service data that has expired at the corresponding moment in the service cycle or scheduling cycle, then the relevant non- After receiving the U-BSRP trigger frame, the AP STA transmits the U-BSR in any frame passed to the AP STA in response to the U-BSRP Trigger Frame, and reports the transmission delay expiration based on the corresponding moment of the service cycle or scheduling cycle. Status report information of buffer delay-sensitive business data.
  • the trigger frame includes a trigger type field, where the trigger type field is used to indicate that the trigger frame is a buffer status report polling trigger frame based on the urgency of data to be transmitted.
  • the trigger frame is a U-BSRP trigger frame
  • the trigger type field is the trigger type subfield (Trigger Type subfield).
  • the trigger type subfield value (Trigger Type subfield value) is 8.
  • the Trigger frame variant is the Buffer Status Report Polling (U-BSRP) based on the urgency of the data to be transmitted.
  • the trigger type subfield can also take other values to indicate that the trigger frame variant (Trigger frame variant) is buffer status report polling (U-BSRP) based on the urgency of the data to be transmitted. In this embodiment of the present application, Not limited.
  • the trigger frame includes a trigger association general information field; wherein the trigger association general information field includes at least one of the following: whether all (ALL indication) field, whether based on service period (SP-based) field, conversion Coefficient (Scaling factor) field and delay expiration time difference limit (TimetoDelayExpire Bound) field.
  • the trigger association general information field may be specifically shown in Figure 8.
  • the trigger frame includes a trigger association general information field; wherein the trigger association general information field includes at least one of the following: whether all (ALL indication) field, whether based on service period (SP-based) field, whether the A delay expire indication bitmap field.
  • the trigger association general information field may be specifically shown in Figure 9.
  • the whether all field is used to indicate whether to trigger the status report information of all delay-sensitive business data in the buffer of the first site, and the whether based on service cycle field is used to indicate whether Based on the service cycle, the preset emergency level requirement or range is expressed.
  • the conversion coefficient field is used to indicate the unit of the delay expiration time difference limit field.
  • the delay expiration time difference limit field is used to indicate the unit corresponding to the status report information to be reported.
  • the buffer data needs to satisfy the preset urgency requirement or range.
  • the first delay expiration indication bitmap field is used to indicate the buffer data corresponding to the status report information to be reported needs to satisfy the preset urgency requirement or range.
  • the trigger frame is a U-BSRP trigger frame
  • the trigger association common information field is a trigger association common information subfield (Trigger Dependent Common Information subfield).
  • the EHT variant Common Info field of the U-BSRP trigger frame carries the Trigger Dependent Common Info subfield.
  • scaling factor field can be as shown in Table 1, and the time unit (time unit, TU) can be, for example, 1024us.
  • Conversion factor field value Conversion factor (multiple of TU) 0 1
  • whether all fields take the first value indicates triggering the status report information of all delay-sensitive service data in the buffer reported by the first station, and whether all fields take the second value indicates triggering the first station.
  • Status report information of delay-sensitive business data in the reported buffer that meets the preset urgency requirements or range For example, if the ALL indication field takes the first value of 0, it means triggering the status report information of all delay-sensitive business data in the buffer reported by the first site.
  • the ALL indication field takes the first value.
  • a value of 1 indicates that the status reporting information of the delay-sensitive service data in the buffer that meets the preset emergency level requirements or range is triggered and is reported by the first site.
  • the ALL indication field takes the first value of 1, it means triggering the status report information of all delay-sensitive business data in the buffer reported by the first site.
  • the ALL indication field takes the first value.
  • a value of 0 indicates triggering status reporting information of delay-sensitive service data in the buffer that meets the preset emergency level requirement or range reported by the first site.
  • the delay expiry difference limit field indicates the status corresponding to the delay-sensitive service data in the first station reporting buffer whose delay expiration difference is less than or equal to the delay expiration difference limit. Report information.
  • the first value of the first delay expiration indication bitmap field indicates that the target TID whose transmission delay has expired at the current moment or the buffered traffic corresponding to the target TID of the target AC;
  • the second value of the first delay expiration indication bitmap field indicates the buffered traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment, wherein the first moment is the current time, and the second time is one of the following: the end time point of the currently allocated service cycle, the starting time point of the next allocated service cycle, or the end time point of the next allocated service cycle;
  • the third value of the first delay expiration indication bitmap field represents the buffered traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment, wherein the first moment is the end time point of the currently allocated service cycle, and the second moment is one of the following: the starting time point of the next allocated service cycle, the end time point of the next allocated service cycle;
  • the fourth value of the first delay expiration indication bitmap field represents the buffered traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment, wherein the first moment is the starting time point of the next allocated service cycle, and the second moment is the end time point of the next allocated service cycle;
  • the target AC is the AC where the TID of the delay-sensitive service is located, and the target TID is the TID of the delay-sensitive service.
  • the target AC may be one or more ACs
  • the target TID may include one or more TIDs.
  • the first delay expiration indication bitmap field can be as shown in Table 2.
  • the target AC is the AC where the TID of the delay-sensitive service is located, and the target TID is the TID of the delay-sensitive service; the target AC can be one or multiple ACs, the target TID may include one or more TIDs; the service period is the r-TWT service period, and the first site is the r-TWT scheduled site.
  • the first delay expiration indication bitmap field occupies 4 bits, and the first value of the first delay expiration indication bitmap field is 0001, and the first delay expiration indication bitmap field The second value of the field is 0010, the third value of the first delay expiration indication bitmap field is 0100, and the fourth value of the first delay expiration indication bitmap field is 1000.
  • the values corresponding to the first value to the fourth value of the first delay expiration indication bitmap field may also be other values, and the first delay expiration indication bitmap field may also occupy other numbers of bits, that is,
  • the content shown in Table 2 above is only an example, and this application is not limiting.
  • the first value of the first delay expiration indication bitmap field indicates that the target TID whose transmission delay has expired at the current moment or the buffered traffic corresponding to the target TID of the target AC;
  • the second value of the first delay expiration indication bitmap field indicates the buffered traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment, wherein the first moment is the current time, and the second time is one of the following: the end time point of the current scheduling cycle, the starting time point of the next scheduling cycle, or the end time point of the next scheduling cycle;
  • the third value of the first delay expiration indication bitmap field represents the buffered traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment, wherein the first moment is the end time point of the current scheduling cycle, and the second moment is one of the following: the starting time point of the next scheduling cycle, the end time point of the next scheduling cycle;
  • the fourth value of the first delay expiration indication bitmap field represents the buffered traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment, wherein the first moment is the starting time point of the next scheduling cycle, and the second moment is the ending time point of the next scheduling cycle;
  • the target AC is the AC where the TID of the delay-sensitive service is located, the target TID is the TID of the delay-sensitive service, and the scheduling period is used to schedule the transmission of the delay-sensitive service.
  • the whether based on service period field takes the first value to indicate that the preset emergency level requirement or range is not based on service period, and is expressed using the conversion coefficient field and the delay expiration time difference limit field.
  • the whether based on service cycle field is set to 0 to indicate that the preset emergency level requirement or range is not based on the service cycle, and the conversion coefficient field and the delay expiration time difference limit field are used to express the preset emergency level requirement. or range; the whether based on service cycle field is set to 1 to represent the preset emergency level requirement or range based on the service cycle, and the first delay expiration indication bitmap field is used to represent the preset emergency level requirement or range.
  • the Whether Based on Service Period field is set to 1 to indicate that the preset emergency level requirement or range is not based on the service period, and the conversion coefficient field and the delay expiration time difference limit field are used to represent the preset emergency level.
  • Requirement or range the whether based on service cycle field is set to 0 to indicate that the preset emergency level requirement or range is based on the service cycle, and the first delay expiration indication bitmap field is used to represent the preset emergency level requirement or range.
  • the first status report information in the first BSR reported by the first station includes a buffer status report related to delay-sensitive services, and the buffer status report carries the buffered data of the first station that meets the preset emergency.
  • the embodiment of the present application introduces two related frame control subfields carrying the first BSR: one is to define a new variant of the BSR control subfield carrying the first BSR (BSR control subfield variant), which controls the BSR control subfield.
  • the related subfield content included is redefined for the application of the BSR control subfield in specific scenarios; the other is to define a new U-BSR control subfield (U-BSR control subfield) that carries the first BSR .
  • the first BSR is carried by the first BSR control field
  • the first BSR control field includes at least one of the following: access type index bitmap field, variable flow identification field, high priority access type field, first queue field and second queue field;
  • the access type index bitmap (ACI bitmap) field is used to indicate the AC where the TID of the delay-sensitive service of the reported buffer status is located
  • the variable flow identification (Delta TID) field is the same as the access type index bitmap (ACI bitmap) field is used to indicate the TID number of the delay-sensitive service of the buffer status being reported by the first station
  • the high priority access type index (ACI High) field is used to indicate the BSR indicated by the first queue field
  • the first queue field is used to indicate that the TID of the delay-sensitive service in the AC indicated by the high-priority access type field to be sent to the target device meets the predetermined requirements.
  • the second queue field is used to indicate the TID corresponding to the delay-sensitive services in all ACs indicated by the access type index bitmap field to be sent to the target device. Buffer traffic size for preset urgency requirements or ranges;
  • the target device is identified by a receiver address of a frame containing the first BSR control field, and the preset emergency level requirement or range is indicated by a trigger frame sent by the second station.
  • the first BSR control field is a new BSR control subfield variant (BSR control subfield variant).
  • the first BSR carried by the first BSR control field. That is, when the first station receives the trigger frame sent by the second station and the trigger frame instructs the first station to report a buffer status report based on the urgency of the data to be transmitted, the first station determines to use the The new variant of the BSR control subdomain reports the first BSR.
  • the new variant of the BSR control subfield carrying U-BSR information is used to respond to the U-BSRP trigger frame.
  • the station receives the U-BSRP trigger frame and the trigger frame instructs the station to report U-BSR
  • the station Use a new variant of the BSR control subfield to report U-BSR instead of using the BSR control subfield defined by 802.11ax.
  • the first queue field may be a high priority queue size (Queue Size High) field
  • the second queue field may be an all queue size (Queue Size All) field.
  • the access type index bitmap (ACI bitmap) field is used to indicate the AC where the TID of the delay-sensitive service in the reported buffer status is located, except that the referred AC must be delay-sensitive. Except for the AC where the service TID is located, other definitions are consistent with the ACI bitmap of the BSR control subfield in IEEE 802.11ax, and will not be repeated here.
  • the variable flow identification (Delta TID) field is used together with the access type index bitmap (ACI bitmap) field to indicate the delay-sensitive service of the buffer status being reported by the first station.
  • ACI bitmap access type index bitmap
  • the high-priority access type index (ACI High) field is used to indicate the AC where the TID of the delay-sensitive service corresponding to the BSR indicated by the first queue field is located, in addition to the pointed Except that the AC must be the AC where the delay-sensitive service TID is located, other definitions are consistent with the ACI High of the BSR control subfield (BSR control subfield) in IEEE 802.11ax, and will not be described again here.
  • the first BSR is carried by the second BSR control field
  • the second BSR control field includes at least one of the following: access type index bitmap field, variable flow identification field, whether based on service period field, second delay expiration indication bitmap field, conversion coefficient field and buffer specific traffic size field;
  • the access type index bitmap field is used to indicate the AC where the TID of the delay-sensitive service in the reported buffer status is located, and the variable flow identification field and the access type index bitmap field are used to indicate that the first site is The number of TIDs of delay-sensitive services in the reported buffer status, the whether based on service cycle field is used to indicate whether it is based on service cycle to represent the preset emergency level requirement or range, the second delay expiration indication bitmap field is used to indicate The target buffer traffic associated with the TIDs of delay-sensitive services in all ACs indicated by the buffer-specific traffic size field.
  • the conversion coefficient field is used to indicate the unit corresponding to the buffer-specific traffic size field.
  • the buffer-specific traffic size field is The traffic size field is used to indicate the buffer traffic size that meets the preset emergency level requirements or range corresponding to the TIDs of all delay-sensitive services in the AC indicated by the access type index bitmap field to be sent to the target device;
  • the target device is identified by the receiver address of the frame containing the second BSR control field, and the preset urgency requirement or range is indicated by the second delay expiration indication bitmap field.
  • the second BSR control field is a BSR control subfield based on the urgency of the data to be transmitted.
  • the second BSR control field may be as shown in Figure 10.
  • the second BSR control field may be a new variant of the aggregation control subfield (A-Control subfield).
  • the second BSR control field may be used to respond to the U-BSR report of the U-BSRP trigger frame. (That is, the first station sends the first BSR to the second station based on the trigger of the second station). It can also be used for unsolicited U-BSR reporting (that is, the first station actively sends the third BSR to the second station). a BSR).
  • the first value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to all target TIDs or target TIDs of the target AC;
  • the second value of the second delay expiration indication bitmap field indicates that the target buffer traffic is the buffer traffic corresponding to the target TID whose transmission delay has expired at the current moment or the target TID of the target AC;
  • the third value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment.
  • the first time is the current time
  • the second time is the end time point of the currently allocated service cycle, the starting time point of the next allocated service cycle, and the end time point of the next allocated service cycle. ;
  • the fourth value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment.
  • the first time is the end time point of the currently allocated service cycle
  • the second time is one of the following: the starting time point of the next allocated service cycle, the end time of the next allocated service cycle point;
  • the fifth value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment.
  • the first moment is the starting time point of the next allocated service cycle
  • the second moment is the end time point of the next allocated service cycle;
  • the target AC is the AC where the TID of the delay-sensitive service is located, and the target TID is the TID of the delay-sensitive service.
  • the second delay expiration indication bitmap field can be as shown in Table 3.
  • the target AC is the AC where the TID of the delay-sensitive service is located, and the target TID is the TID of the delay-sensitive service; the target AC can be one or multiple ACs, the target TID may include one or more TIDs; the service period is the r-TWT service period, and the first site is the r-TWT scheduled site.
  • the second delay expiration indication bitmap field occupies 4 bits
  • the first value of the second delay expiration indication bitmap field is 0000
  • the second delay expiration indication bitmap field occupies 4 bits.
  • the second value of the field is 0001
  • the third value of the second delay expiration indication bitmap field is 0010
  • the fourth value of the second delay expiration indication bitmap field is 0100
  • the second value of the second delay expiration indication bitmap field is 0100.
  • the fifth value is 1000.
  • the values corresponding to the first to fifth values of the second delay expiration indication bitmap field may also be other values, and the second delay expiration indication bitmap field may also occupy other numbers of bits, that is,
  • the content shown in Table 3 above is only an example, and this application is not limiting.
  • the first value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to all target TIDs or target TIDs of the target AC;
  • the second value of the second delay expiration indication bitmap field indicates that the target buffer traffic is the buffer traffic corresponding to the target TID whose transmission delay has expired at the current moment or the target TID of the target AC;
  • the third value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment.
  • the first moment is the current moment
  • the second moment is one of the following: the end time point of the current scheduling cycle, the starting time point of the next scheduling cycle, and the end time point of the next scheduling cycle;
  • the fourth value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment.
  • the first moment is the end time point of the current scheduling cycle
  • the second moment is one of the following: the starting time point of the next scheduling cycle, the end time point of the next scheduling cycle;
  • the fifth value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment.
  • the first moment is the starting time point of the next scheduling cycle
  • the second moment is the ending time point of the next scheduling cycle
  • the target AC is the AC where the TID of the delay-sensitive service is located, the target TID is the TID of the delay-sensitive service, and the scheduling period is used to schedule the transmission of the delay-sensitive service.
  • the access type index bitmap (ACI bitmap) field is used to indicate the AC where the TID of the delay-sensitive service in the reported buffer status is located, except that the referred AC must be delay-sensitive. Except for the AC where the service TID is located, other definitions are consistent with the ACI bitmap of the BSR control subfield in IEEE 802.11ax, and will not be repeated here.
  • variable flow identification (Delta TID) field and the access type index bitmap (ACI bitmap) field are used together to indicate the delay-sensitive service of the buffer status being reported by the first station.
  • the number of TIDs, except that the TID referred to must be a delay-sensitive service TID, other definitions are consistent with the ACI bitmap of the BSR control subfield in IEEE 802.11ax, and will not be repeated here.
  • the whether based on service period field is used to indicate whether to indicate the preset emergency level requirement or range based on service period. For example, for r-TWT, whether it is based on the r-TWT service cycle. Specifically, it can occupy 1 bit. When the value is 0, it means that the preset emergency level requirement or range is not based on the service cycle.
  • the conversion coefficient field and the delay expiration time difference limit field are used to express the preset emergency level requirement or range. Range; when the value is 1, it means that the preset emergency level requirement or range is expressed based on the service cycle, and the second delay expiration indication bitmap field is used to express the specific emergency level requirement or range.
  • the value when the value is 1, it means that the preset emergency level requirement or range is not based on the service cycle, and the conversion coefficient field and the delay expiration time difference limit field are used to express the preset emergency level requirement or range; when the value is When 0, it means that the preset emergency level requirement or range is expressed based on the service cycle, and the second delay expiration indication bitmap field is used to express the specific emergency level requirement or range.
  • the first BSR is carried by the third BSR control field
  • the third BSR control field includes at least one of the following: access type index bitmap field, variable flow identification field, whether based on service period field, delay expiration time difference limit field, delay conversion coefficient field and buffer specific field. Traffic size field;
  • the access type index bitmap field is used to indicate the AC where the TID of the delay-sensitive service in the reported buffer status is located, and the variable flow identification field and the access type index bitmap field are used to indicate that the first site is The number of TIDs of delay-sensitive services in the reported buffer status.
  • the whether the delay is based on the service cycle field is used to indicate whether the preset emergency level requirement or range is based on the service cycle.
  • the delay conversion coefficient field is used to indicate that the delay is to The unit corresponding to the delay time difference limit field.
  • the delay time difference limit field is used to indicate the preset urgency requirements or range that the buffer data corresponding to the status report information to be reported needs to meet.
  • the buffer flow conversion coefficient field Used to indicate the unit corresponding to the buffer specific traffic size field.
  • the buffer specific traffic size field is used to indicate the delay-sensitive services in all ACs indicated by the access type index bitmap field to be sent to the target device.
  • the target device is identified by the receiver address of the frame containing the third BSR control field, and the preset urgency requirement or range is indicated by the delay expiration time difference limit field.
  • the third BSR control field is a BSR control subfield based on the urgency of the data to be transmitted.
  • the third BSR control field may be as shown in Figure 11.
  • the third BSR control field may be a new variant of the aggregation control subfield (A-Control subfield).
  • the third BSR control field may be used to respond to the U-BSR report of the U-BSRP trigger frame. (That is, the first station sends the first BSR to the second station based on the trigger of the second station). It can also be used for unsolicited U-BSR reporting (that is, the first station actively sends the third BSR to the second station). a BSR).
  • the delay expiry difference limit field indicates that the delay expiry difference in the first station reporting buffer is less than or equal to the delay expiry difference limit.
  • the unit of the delay expiry difference limit field is TU.
  • the delay conversion coefficient field may be as shown in Table 4, and the TU may be, for example, 1024us.
  • Delay conversion coefficient field value Delay conversion coefficient (multiple of TU) 0 1 1 2
  • the access type index bitmap (ACI bitmap) field is used to indicate the AC where the TID of the delay-sensitive service in the reported buffer status is located, except that the referred AC must be delay-sensitive. Except for the AC where the service TID is located, other definitions are consistent with the ACI bitmap of the BSR control subfield in IEEE 802.11ax, and will not be repeated here.
  • variable flow identification (Delta TID) field and the access type index bitmap (ACI bitmap) field are used together to indicate the delay-sensitive service of the buffer status being reported by the first station.
  • the number of TIDs, except that the TID referred to must be a delay-sensitive service TID, other definitions are consistent with the ACI bitmap of the BSR control subfield in IEEE 802.11ax, and will not be repeated here.
  • the whether based on service period field is used to indicate whether to indicate the preset emergency level requirement or range based on service period. For example, for r-TWT, whether it is based on the r-TWT service cycle. Specifically, it can occupy 1 bit. When the value is 0, it means that the preset emergency level requirement or range is not based on the service cycle.
  • the conversion coefficient field and the delay expiration time difference limit field are used to express the preset emergency level requirement or range. Range; when the value is 1, it means that the preset emergency level requirement or range is expressed based on the service cycle, and the second delay expiration indication bitmap field is used to express the specific emergency level requirement or range.
  • the value when the value is 1, it means that the preset emergency level requirement or range is not based on the service cycle, and the conversion coefficient field and the delay expiration time difference limit field are used to express the preset emergency level requirement or range; when the value is When 0, it means that the preset emergency level requirement or range is expressed based on the service cycle, and the second delay expiration indication bitmap field is used to express the specific emergency level requirement or range.
  • the buffer traffic conversion coefficient field in bytes, indicates the unit corresponding to the buffer specific traffic size (Queue Size selected) field. Its definition is the same as the BSR control in IEEE 802.11ax.
  • the Scaling Factor of the subfield (BSR control subfield) is the same and will not be described again here.
  • BSR Buffer Status Report
  • U-BSR buffer delay-sensitive business data status report
  • the second site can trigger the first site to report a status report of the delay-sensitive service data in the buffer based on the urgency of the data to be transmitted, or the first site can proactively report a status report of the delay-sensitive service data in the buffer based on the urgency of the data to be transmitted. Extend sensitive business data status reporting.
  • Example 1 The technical solution of the present application is described in detail through Example 1 and Example 2 below.
  • Embodiment 1 buffer delay-sensitive service data status reporting mechanism during r-TWT SP, the first site is a non-AP STA, the second site is an AP STA, and the non-AP STA is an r-TWT scheduled site.
  • the non-AP STA sends an SCS request carrying a QoS Characteristics element (QoS Characteristics element) to the AP STA, where the QoS Characteristics element contains recommendations for meeting delay-sensitive service transmission requirements. Parameters, including direction (such as upstream), flow identification (TID), minimum service interval (Minimum Service Interval), maximum service interval (Maximum Service Interval), minimum data rate (Minimum Data Rate), and delay limit (Delay Bound) etc.
  • the AP STA receives the SCS request, if it accepts the SCS request, it responds with an SCS request acceptance response to the non-AP STA.
  • the r-TWT is established between the AP STA and the non-AP STA based on the negotiation results of the SCS, and the upstream or downstream identifier (TID) of the delay-sensitive service transmitted within the scheduled service period (SP) is determined.
  • Non-AP STA transmits delay-sensitive services during the scheduled service period announced by AP STA. For example, AP STA can send trigger frames to specify which r-TWT scheduled sites perform uplink transmission, and allocate transmission resources to each scheduled site.
  • AP STA can trigger the r-TWT scheduled station (non-AP STA) corresponding to the service period to report the delay-sensitive service data status report in the buffer based on the urgency of the data to be transmitted, or r-
  • the TWT scheduled site proactively reports the status report of delay-sensitive service data in the buffer based on the urgency of the data to be transmitted, as shown in Figure 12.
  • the AP STA sends a BSR polling trigger frame (U-BSRP Trigger frame) carrying urgency requirements, and the non-AP STA follows
  • U-BSRP Trigger frame may carry a new variant of the BSR control subfield or the U-BSR Control subfield (U-BSR Control subfield) in any frame passed to the AP in response to the BSRP Trigger Frame.
  • U-BSR reflects the buffer status report that meets the specific emergency range.
  • the U-BSR contains a status report of buffer delay-sensitive service data that meets the emergency requirements or scope.
  • the status report may be based on the status report information of the buffer delay-sensitive service data with expired transmission delay at the corresponding time of the service cycle. Alternatively, it can be expressed by status report information of buffer delay-sensitive service data based on the delay expiration time difference (TimetoDelayExpire) limit range.
  • Embodiment 2 is a buffer delay-sensitive service data status reporting mechanism based on AP triggered scheduling scenarios.
  • the first site is a non-AP STA
  • the second site is an AP STA
  • the non-AP STA is an r-TWT scheduled site.
  • the non-AP STA sends an SCS request carrying a QoS Characteristics element (QoS Characteristics element) to the AP STA, where the QoS Characteristics element contains recommended parameters for meeting delay-sensitive service transmission requirements. , including direction (Direction, such as upstream), flow identification (TID), minimum service interval (Minimum Service Interval), maximum service interval (Maximum Service Interval), minimum data rate (Minimum Data Rate), and delay limit (Delay Bound) )wait.
  • direction Direction, such as upstream
  • flow identification TID
  • Minimum Service Interval minimum service interval
  • Maximum Service Interval Maximum Service Interval
  • minimum data rate Minimum Data Rate
  • Delay Bound delay limit
  • the AP STA uses a trigger frame-based transmission method to schedule and transmit the delay-sensitive service data of the non-AP STA.
  • the AP STA can trigger the non-AP STA to report a status report of the delay-sensitive service data in the buffer based on the urgency of the data to be transmitted, or the non-AP STA can proactively report a status report based on the urgency of the data to be transmitted.
  • the status report of delay-sensitive business data in the buffer of data urgency is shown in Figure 13.
  • the AP STA for the AP STA to trigger a non-AP STA report (requested U-BSR), the AP STA sends a trigger frame (U-BSRP Trigger frame) carrying urgency requirements, and the non-AP STA follows the U-BSRP Trigger
  • U-BSRP Trigger frame carrying urgency requirements
  • the urgency requirement or range indicated in the frame can carry the new variant of the BSR control subfield or the U-BSR control subfield (U-BSR Control subfield) passed to the AP STA in any frame used to respond to the BSRP Trigger Frame.
  • non-AP STA can pass U-BSR information in the U-BSR Control subfield of any frame transmitted to AP STA, where, U- The BSR reflects a buffer status report that meets a specific urgency range.
  • the U-BSR contains the buffer delay-sensitive service data status report that meets the emergency requirements or range, which can be represented by the status report information of the buffer delay-sensitive service data based on the delay expiration time difference (TimetoDelayExpire) limit range. , or it can be represented by status report information based on the buffer delay-sensitive service data whose transmission delay expires at the corresponding moment in the scheduling cycle.
  • the first station can send buffer status report information based on the urgency of the data to be transmitted to the second station through the first BSR. Therefore, the second station can report information based on the urgency of the data to be transmitted based on the data to be transmitted.
  • UL MU resources are allocated according to the transmission requirements of data urgency to meet the transmission requirements of delay-sensitive services.
  • FIG 14 shows a schematic block diagram of a site device 300 according to an embodiment of the present application.
  • the site equipment 300 is the first site.
  • the site equipment 300 includes:
  • Communication unit 310 configured to send a first buffer status report BSR to the second site
  • the first BSR at least includes first status report information
  • the first status report information is buffer status report information based on the urgency of the data to be transmitted.
  • the first status report information includes status report information of delay-sensitive service data in the buffer that meets preset urgency requirements or ranges.
  • the preset urgency requirement or range is based on the status report information representation of delay-sensitive service data in the buffer of expired transmission delay associated with the service cycle; or, the preset urgency requirement or range is based on scheduling.
  • the status report information of the delay-sensitive service data in the period-related transmission delay-expired buffer indicates that the scheduling period is used to schedule the transmission of delay-sensitive services.
  • the first status report information specifically includes at least one of the following:
  • the second time is later than the first time.
  • the first time is the current time
  • the second time is one of the following: the end time point of the currently allocated service period, the starting time point of the next allocated service period, the next The end of the assigned service period; or,
  • the first time is the end time point of the currently allocated service cycle
  • the second time is one of the following: the starting time point of the next allocated service cycle, the end time point of the next allocated service cycle ;or,
  • the first time is the starting time point of the next allocated service period
  • the second time is the end time point of the next allocated service period
  • the first time is the current time
  • the second time is one of the following: the end time point of the current scheduling cycle, the starting time point of the next scheduling cycle, and the end time point of the next scheduling cycle. ;or,
  • the first time is the end time point of the current scheduling cycle in which the second station schedules delay-sensitive service transmission
  • the second time is one of the following: the starting time point of the next scheduling cycle, the end time of the next scheduling cycle end time; or,
  • the first moment is the starting time point of the next scheduling cycle, and the second moment is the ending time point of the next scheduling cycle;
  • the scheduling period is used to schedule the transmission of delay-sensitive services.
  • the preset urgency requirement or range is based on the status report information representation of the delay-sensitive service data in the buffer of the delay expiration time difference limit range.
  • the first status report information specifically includes the data size of delay-sensitive services in the buffer whose delay expiration difference is less than or equal to the delay expiration difference limit.
  • the delay expiration time difference limit is configured or indicated by the second station, or the delay expiration time difference limit is agreed upon by a protocol.
  • the data associated with the first status report information is the media access control service data unit MSDU corresponding to the target flow identifier TID of the target access type AC or the aggregated media access control service data unit A-MSDU in the buffer.
  • the data in; and/or, the data associated with the first status report information is the data in the buffer of the MSDU or A-MSDU corresponding to the target TID;
  • the target AC is the AC where the TID of the delay-sensitive service is located, and the target TID is the TID of the delay-sensitive service.
  • the communication unit 310 is specifically used for:
  • the first BSR is sent to the second station between two scheduling periods in which the second station schedules delay-sensitive service transmission.
  • a restricted target wake-up time r-TWT protocol is established between the first station and the second station, and the service period is the r-TWT service period, and the first station is the r-TWT service period. Corresponding r-TWT reservation site.
  • the communication unit 310 is specifically used for:
  • the first station After the first station establishes an SCS flow by sending a flow classification service SCS request carrying a quality of service QoS feature element, send the first BSR to the second station;
  • the QoS characteristic element includes recommended parameters for meeting delay-sensitive service transmission requirements.
  • the recommended parameters for meeting delay-sensitive service transmission requirements include at least one of the following: direction, TID, minimum service interval, maximum service interval, minimum data rate, and delay limit.
  • the communication unit 310 is specifically used for:
  • the first BSR is sent to the second station based on the trigger of the second station.
  • the first station when the first station actively sends the first BSR to the second station, the first station sends a BSR based on the urgency of the data to be transmitted in any frame transmitted to the second station.
  • the first BSR is carried in the control subfield.
  • the trigger frame sent by the second station is a buffer based on the urgency of the data to be transmitted. Status reporting polling trigger frame.
  • the first station transmits the new variant of the BSR control subfield of any frame in response to the trigger frame to the second station according to the preset emergency level requirements or range indicated in the trigger frame. ;or,
  • the first station carries the BSR control subfield based on the urgency of the data to be transmitted in any frame transmitted to the second station in response to the trigger frame according to the preset emergency level requirements or range indicated in the trigger frame.
  • the first BSR is a basic structural description of the first station.
  • the trigger frame includes at least one of the following: indication information indicating a preset emergency level requirement or range, and an indication indicating whether to trigger status reporting information of all delay-sensitive service data in the reporting buffer. Information used to indicate whether to indicate preset emergency level requirements or ranges based on service cycles.
  • the trigger frame includes a trigger type field, where the trigger type field is used to indicate that the trigger frame is a buffer status report polling trigger frame based on the urgency of data to be transmitted.
  • the trigger frame includes a trigger association general information field
  • the trigger association general information field includes at least one of the following: whether all fields, whether based on service period field, conversion coefficient field and delay expiration time difference limit field; or, the trigger association general information field includes at least one of the following : Whether it is all fields, whether it is based on the service cycle field, and the first delay expiration indication bitmap field;
  • the whether all field is used to indicate whether to trigger the status report information of all delay-sensitive business data in the buffer of the first site
  • the whether based on service cycle field is used to indicate whether to indicate the preset emergency level requirement based on the service cycle.
  • the conversion coefficient field is used to indicate the unit of the delay expiration time difference limit field
  • the delay expiration time difference limit field is used to indicate the preset urgency level that the buffer data corresponding to the status report information to be reported needs to meet.
  • the first delay expiration indication bitmap field is used to indicate the preset urgency requirement or range that the buffer data corresponding to the status report information to be reported needs to meet.
  • whether all fields take the first value indicates triggering the status report information of all delay-sensitive service data in the buffer reported by the first station, and whether all fields take the second value indicates triggering the first station.
  • Status report information of delay-sensitive business data in the reported buffer that meets the preset urgency requirements or range.
  • the delay expiry difference limit field indicates the status corresponding to the delay-sensitive service data in the first station reporting buffer whose delay expiration difference is less than or equal to the delay expiration difference limit. Report information.
  • the first value of the first delay expiration indication bitmap field indicates that the target TID whose transmission delay has expired at the current moment or the buffered traffic corresponding to the target TID of the target AC;
  • the second value of the first delay expiration indication bitmap field indicates the buffered traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment, wherein the first moment is the current time, and the second time is one of the following: the end time point of the currently allocated service cycle, the starting time point of the next allocated service cycle, or the end time point of the next allocated service cycle;
  • the third value of the first delay expiration indication bitmap field represents the buffered traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment, wherein the first moment is the end time point of the currently allocated service cycle, and the second moment is one of the following: the starting time point of the next allocated service cycle, the end time point of the next allocated service cycle;
  • the fourth value of the first delay expiration indication bitmap field represents the buffered traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment, wherein the first moment is the starting time point of the next allocated service cycle, and the second moment is the end time point of the next allocated service cycle;
  • the target AC is the AC where the TID of the delay-sensitive service is located, and the target TID is the TID of the delay-sensitive service.
  • the first value of the first delay expiration indication bitmap field indicates that the target TID whose transmission delay has expired at the current moment or the buffered traffic corresponding to the target TID of the target AC;
  • the second value of the first delay expiration indication bitmap field indicates the buffered traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment, wherein the first moment is the current time, and the second time is one of the following: the end time point of the current scheduling cycle, the starting time point of the next scheduling cycle, or the end time point of the next scheduling cycle;
  • the third value of the first delay expiration indication bitmap field represents the buffered traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment, wherein the first moment is the end time point of the current scheduling cycle, and the second moment is one of the following: the starting time point of the next scheduling cycle, the end time point of the next scheduling cycle;
  • the fourth value of the first delay expiration indication bitmap field represents the buffered traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment, wherein the first moment is the starting time point of the next scheduling cycle, and the second moment is the ending time point of the next scheduling cycle;
  • the target AC is the AC where the TID of the delay-sensitive service is located, the target TID is the TID of the delay-sensitive service, and the scheduling period is used to schedule the transmission of the delay-sensitive service.
  • the whether based on service period field takes the first value to indicate that the preset emergency level requirement or range is not based on service period, and is expressed using the conversion coefficient field and the delay expiration time difference limit field.
  • the first BSR is carried by the first BSR control field
  • the first BSR control field includes at least one of the following: access type index bitmap field, variable flow identification field, high priority access type index field, first queue field and second queue field;
  • the access type index bitmap field is used to indicate the AC where the TID of the delay-sensitive service in the reported buffer status is located, and the variable flow identification field and the access type index bitmap field are used to indicate that the first site is The number of TIDs of delay-sensitive services in the reported buffer status.
  • the high-priority access type index field is used to indicate the AC where the TIDs of the delay-sensitive services corresponding to the BSR indicated by the first queue field are located.
  • the first queue The field is used to indicate the buffer traffic size that meets the preset emergency level requirements or range corresponding to the TID of the delay-sensitive service in the AC indicated by the high-priority access type field to be sent to the target device.
  • the second queue The field is used to indicate the buffer traffic size that meets the preset emergency level requirements or range corresponding to the TIDs of all delay-sensitive services in the AC indicated by the access type index bitmap field to be sent to the target device;
  • the target device is identified by a receiver address of a frame containing the first BSR control field, and the preset emergency level requirement or range is indicated by a trigger frame sent by the second station.
  • the first BSR control field is a new variant of the BSR control subfield.
  • the site device 300 further includes: a processing unit 320;
  • the processing unit 320 is configured to determine to use the BSR Control the new variant of the subdomain to report the first BSR.
  • the first BSR is carried by the second BSR control field
  • the second BSR control field includes at least one of the following: access type index bitmap field, variable flow identification field, whether based on service period field, second delay expiration indication bitmap field, conversion coefficient field and buffer specific traffic size field;
  • the access type index bitmap field is used to indicate the AC where the TID of the delay-sensitive service in the reported buffer status is located, and the variable flow identification field and the access type index bitmap field are used to indicate that the first site is The number of TIDs of delay-sensitive services in the reported buffer status, the whether based on service cycle field is used to indicate whether it is based on service cycle to represent the preset emergency level requirement or range, the second delay expiration indication bitmap field is used to indicate The target buffer traffic associated with the TIDs of delay-sensitive services in all ACs indicated by the buffer-specific traffic size field.
  • the conversion coefficient field is used to indicate the unit corresponding to the buffer-specific traffic size field.
  • the buffer-specific traffic size field is The traffic size field is used to indicate the buffer traffic size that meets the preset emergency level requirements or range corresponding to the TIDs of all delay-sensitive services in the AC indicated by the access type index bitmap field to be sent to the target device;
  • the target device is identified by the receiver address of the frame containing the second BSR control field, and the preset urgency requirement or range is indicated by the second delay expiration indication bitmap field.
  • the first value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to all target TIDs or target TIDs of the target AC;
  • the second value of the second delay expiration indication bitmap field indicates that the target buffer traffic is the buffer traffic corresponding to the target TID whose transmission delay has expired at the current moment or the target TID of the target AC;
  • the third value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment.
  • the first time is the current time
  • the second time is the end time point of the currently allocated service cycle, the starting time point of the next allocated service cycle, and the end time point of the next allocated service cycle. ;
  • the fourth value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment.
  • the first time is the end time point of the currently allocated service cycle
  • the second time is one of the following: the starting time point of the next allocated service cycle, the end time of the next allocated service cycle point;
  • the fifth value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment.
  • the first moment is the starting time point of the next allocated service cycle
  • the second moment is the end time point of the next allocated service cycle;
  • the target AC is the AC where the TID of the delay-sensitive service is located, and the target TID is the TID of the delay-sensitive service.
  • the first value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to all target TIDs or target TIDs of the target AC;
  • the second value of the second delay expiration indication bitmap field indicates that the target buffer traffic is the buffer traffic corresponding to the target TID whose transmission delay has expired at the current moment or the target TID of the target AC;
  • the third value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment.
  • the first moment is the current moment
  • the second moment is one of the following: the end time point of the current scheduling cycle, the starting time point of the next scheduling cycle, and the end time point of the next scheduling cycle;
  • the fourth value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment.
  • the first moment is the end time point of the current scheduling cycle
  • the second moment is one of the following: the starting time point of the next scheduling cycle, the end time point of the next scheduling cycle;
  • the fifth value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment.
  • the first moment is the starting time point of the next scheduling cycle
  • the second moment is the ending time point of the next scheduling cycle
  • the target AC is the AC where the TID of the delay-sensitive service is located, the target TID is the TID of the delay-sensitive service, and the scheduling period is used to schedule the transmission of the delay-sensitive service.
  • the second BSR control field is a BSR control subfield based on the urgency of the data to be transmitted.
  • the first BSR is carried by the third BSR control field
  • the third BSR control field includes at least one of the following: access type index bitmap field, variable flow identification field, whether based on service period field, delay expiration time difference limit field, delay conversion coefficient field and buffer specific field. Traffic size field;
  • the access type index bitmap field is used to indicate the AC where the TID of the delay-sensitive service in the reported buffer status is located, and the variable flow identification field and the access type index bitmap field are used to indicate that the first site is The number of TIDs of delay-sensitive services in the reported buffer status.
  • the whether the delay is based on the service cycle field is used to indicate whether the preset emergency level requirement or range is based on the service cycle.
  • the delay conversion coefficient field is used to indicate that the delay is to The unit corresponding to the delay time difference limit field.
  • the delay time difference limit field is used to indicate the preset urgency requirements or range that the buffer data corresponding to the status report information to be reported needs to meet.
  • the buffer flow conversion coefficient field Used to indicate the unit corresponding to the buffer specific traffic size field.
  • the buffer specific traffic size field is used to indicate the delay-sensitive services in all ACs indicated by the access type index bitmap field to be sent to the target device.
  • the target device is identified by the receiver address of the frame containing the third BSR control field, and the preset urgency requirement or range is indicated by the delay expiration time difference limit field.
  • the delay expiry difference limit field indicates the status corresponding to the delay-sensitive service data in the first station reporting buffer whose delay expiration difference is less than or equal to the delay expiration difference limit. Report information.
  • the third BSR control field is a BSR control subfield based on the urgency of the data to be transmitted.
  • the service period is a service period of the restricted target wake-up time r-TWT
  • the first site is a scheduled site of the r-TWT.
  • the delay expiration time difference is the time difference between the current time of the delay-sensitive service data and the transmission delay expiration time point of the delay-sensitive service data, or the delay expiration time difference. It is the time difference between the target time of the delay-sensitive service data and the expiration time point of the transmission delay of the delay-sensitive service data.
  • the time point at which the transmission delay expires refers to the time when the MSDU or A-MSDU belonging to the delay-sensitive service flow reaches the MAC sublayer from the local media access control MAC service access point after a limited delay. long time point;
  • the limited delay is the maximum duration allowed to transmit MSDU or A-MSDU.
  • the transmission delay has expired means that the delay expiration difference of the MSDU or A-MSDU to be transmitted at the current moment is less than or equal to zero, or the transmission delay has expired means that the MSDU or A-MSDU to be transmitted has expired.
  • the delay expiration difference of the MSDU for the current moment is less than the delay expiration deviation threshold; and/or,
  • the transmission delay expiration means that the delay expiration time difference of the MSDU or A-MSDU to be transmitted with respect to the target time is less than or equal to zero, or the transmission delay expiration means that the time delay of the MSDU or A-MSDU to be transmitted with respect to the target time is The delay time difference is less than the delay expiration deviation threshold; and/or,
  • the transmission delay has not expired means that the delay expiration difference of the MSDU or A-MSDU to be transmitted with respect to the target time is greater than zero, or the transmission delay has not expired means that the delay of the MSDU or A-MSDU to be transmitted with respect to the target time is greater than zero.
  • the expiration time difference is greater than or equal to the delay expiration deviation threshold.
  • the delay expiration deviation threshold is the time interval between the MSDU or A-MSDU transmission start time point and the successful transmission confirmation time point.
  • the first site is a non-access point site non-AP STA
  • the second site is an access point site AP STA.
  • the first station is a non-AP STA and the second station is another non-AP STA; or,
  • the first site is an AP STA
  • the second site is another AP STA.
  • the above-mentioned communication unit may be a communication interface or transceiver, or an input/output interface of a communication chip or a system on a chip.
  • the above-mentioned processing unit may be one or more processors.
  • site device 300 may correspond to the first site in the method embodiment of the present application, and the above and other operations and/or functions of each unit in the site device 300 are respectively to implement what is shown in Figure 4
  • the corresponding process of the first site in method 200 will not be described again for the sake of simplicity.
  • FIG. 15 shows a schematic block diagram of a site device 400 according to an embodiment of the present application.
  • the site equipment 400 is the second site.
  • the site equipment 400 includes:
  • Communication unit 410 configured to receive the first buffer status report BSR sent by the first station
  • the first BSR at least includes first status report information
  • the first status report information is buffer status report information based on the urgency of the data to be transmitted.
  • the first status report information includes status report information of delay-sensitive service data in the buffer that meets preset urgency requirements or ranges.
  • the preset urgency requirement or range is based on the status report information representation of delay-sensitive service data in the buffer of expired transmission delay associated with the service cycle; or, the preset urgency requirement or range is based on scheduling.
  • the status report information of the delay-sensitive service data in the period-related transmission delay-expired buffer indicates that the scheduling period is used to schedule the transmission of delay-sensitive services.
  • the first status report information specifically includes at least one of the following:
  • the second time is later than the first time.
  • the first time is the current time
  • the second time is one of the following: the end time point of the currently allocated service period, the starting time point of the next allocated service period, the next The end of the assigned service period; or,
  • the first time is the end time point of the currently allocated service cycle
  • the second time is one of the following: the starting time point of the next allocated service cycle, the end time point of the next allocated service cycle ;or,
  • the first time is the starting time point of the next allocated service period
  • the second time is the end time point of the next allocated service period
  • the first time is the current time
  • the second time is one of the following: the end time point of the current scheduling cycle, the starting time point of the next scheduling cycle, and the end time point of the next scheduling cycle. ;or,
  • the first moment is the end time point of the current scheduling cycle
  • the second moment is one of the following: the starting time point of the next scheduling cycle, the end time point of the next scheduling cycle; or,
  • the first moment is the starting time point of the next scheduling cycle, and the second moment is the ending time point of the next scheduling cycle;
  • the scheduling period is used to schedule the transmission of delay-sensitive services.
  • the preset urgency requirement or range is based on the status report information representation of the delay-sensitive service data in the buffer of the delay expiration time difference limit range.
  • the first status report information specifically includes the data size of delay-sensitive services in the buffer whose delay expiration difference is less than or equal to the delay expiration difference limit.
  • the delay expiration time difference limit is configured or indicated by the second station, or the delay expiration time difference limit is agreed upon by a protocol.
  • the data associated with the first status report information is the media access control service data unit MSDU corresponding to the target flow identifier TID of the target access type AC or the aggregated media access control service data unit A-MSDU in the buffer.
  • the data in; and/or, the data associated with the first status report information is the data in the buffer of the MSDU or A-MSDU corresponding to the target TID;
  • the target AC is the AC where the TID of the delay-sensitive service is located, and the target TID is the TID of the delay-sensitive service.
  • the communication unit 410 is specifically used for:
  • a restricted target wake-up time r-TWT protocol is established between the first station and the second station, and the service period is the r-TWT service period, and the first station is the r-TWT service period. Corresponding r-TWT reservation site.
  • the communication unit 410 is specifically used for:
  • the first station After the first station establishes an SCS flow by sending a flow classification service SCS request carrying a quality of service QoS feature element, receive the first BSR sent by the first station;
  • the QoS characteristic element includes recommended parameters for meeting delay-sensitive service transmission requirements.
  • the recommended parameters for meeting delay-sensitive service transmission requirements include at least one of the following: direction, TID, minimum service interval, maximum service interval, minimum data rate, and delay limit.
  • the communication unit 410 is specifically used for:
  • the first station when the first station actively sends the first BSR to the second station, the first station sends a BSR based on the urgency of the data to be transmitted in any frame transmitted to the second station.
  • the first BSR is carried in the control subfield.
  • the trigger frame sent by the second station is a buffer based on the urgency of the data to be transmitted. Status reporting polling trigger frame.
  • the first station transmits the new variant of the BSR control subfield of any frame in response to the trigger frame to the second station according to the preset emergency level requirements or range indicated in the trigger frame. ;or,
  • the first station carries the BSR control subfield based on the urgency of the data to be transmitted in any frame transmitted to the second station in response to the trigger frame according to the preset emergency level requirements or range indicated in the trigger frame.
  • the first BSR is a basic structural description of the first station.
  • the trigger frame includes at least one of the following: indication information indicating a preset emergency level requirement or range, and an indication indicating whether to trigger status reporting information of all delay-sensitive service data in the reporting buffer. Information used to indicate whether to indicate preset emergency level requirements or ranges based on service cycles.
  • the trigger frame includes a trigger type field, where the trigger type field is used to indicate that the trigger frame is a buffer status report polling trigger frame based on the urgency of data to be transmitted.
  • the trigger frame includes a trigger association general information field
  • the trigger association general information field includes at least one of the following: whether all fields, whether based on service period field, conversion coefficient field and delay expiration time difference limit field; or, the trigger association general information field includes at least one of the following : Whether it is all fields, whether it is based on the service cycle field, and the first delay expiration indication bitmap field;
  • the whether all field is used to indicate whether to trigger the status report information of all delay-sensitive business data in the buffer of the first site
  • the whether based on service cycle field is used to indicate whether to indicate the preset emergency level requirement based on the service cycle.
  • the conversion coefficient field is used to indicate the unit of the delay expiration time difference limit field
  • the delay expiration time difference limit field is used to indicate the preset urgency level that the buffer data corresponding to the status report information to be reported needs to meet.
  • the first delay expiration indication bitmap field is used to indicate the preset urgency requirement or range that the buffer data corresponding to the status report information to be reported needs to meet.
  • whether all fields take the first value indicates triggering the status report information of all delay-sensitive service data in the buffer reported by the first station, and whether all fields take the second value indicates triggering the first station.
  • Status report information of delay-sensitive business data in the reported buffer that meets the preset urgency requirements or range.
  • the delay expiry difference limit field indicates the status corresponding to the delay-sensitive service data in the first station reporting buffer whose delay expiration difference is less than or equal to the delay expiration difference limit. Report information.
  • the first value of the first delay expiration indication bitmap field indicates that the target TID whose transmission delay has expired at the current moment or the buffered traffic corresponding to the target TID of the target AC;
  • the second value of the first delay expiration indication bitmap field indicates the buffered traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment, wherein the first moment is the current time, and the second time is one of the following: the end time point of the currently allocated service cycle, the starting time point of the next allocated service cycle, or the end time point of the next allocated service cycle;
  • the third value of the first delay expiration indication bitmap field represents the buffered traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment, wherein the first moment is the end time point of the currently allocated service cycle, and the second moment is one of the following: the starting time point of the next allocated service cycle, the end time point of the next allocated service cycle;
  • the fourth value of the first delay expiration indication bitmap field represents the buffered traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment, wherein the first moment is the starting time point of the next allocated service cycle, and the second moment is the end time point of the next allocated service cycle;
  • the target AC is the AC where the TID of the delay-sensitive service is located, and the target TID is the TID of the delay-sensitive service.
  • the first value of the first delay expiration indication bitmap field indicates that the target TID whose transmission delay has expired at the current moment or the buffered traffic corresponding to the target TID of the target AC;
  • the second value of the first delay expiration indication bitmap field indicates the buffered traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment, wherein the first moment is the current time, and the second time is one of the following: the end time point of the current scheduling cycle, the starting time point of the next scheduling cycle, or the end time point of the next scheduling cycle;
  • the third value of the first delay expiration indication bitmap field represents the buffered traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment, wherein the first moment is the end time point of the current scheduling cycle, and the second moment is one of the following: the starting time point of the next scheduling cycle, the end time point of the next scheduling cycle;
  • the fourth value of the first delay expiration indication bitmap field represents the buffered traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment, wherein the first moment is the starting time point of the next scheduling cycle, and the second moment is the ending time point of the next scheduling cycle;
  • the target AC is the AC where the TID of the delay-sensitive service is located, the target TID is the TID of the delay-sensitive service, and the scheduling period is used to schedule the transmission of the delay-sensitive service.
  • the whether based on service period field takes the first value to indicate that the preset emergency level requirement or range is not based on service period, and is expressed using the conversion coefficient field and the delay expiration time difference limit field.
  • the second value of the whether based on service cycle field indicates that the preset emergency level requirement or range is expressed based on the service cycle, and the first delay expiration indication bitmap field is used to represent the preset emergency level requirement or range.
  • the first BSR is carried by the first BSR control field
  • the first BSR control field includes at least one of the following: access type index bitmap field, variable flow identification field, high priority access type index field, first queue field and second queue field;
  • the access type index bitmap field is used to indicate the AC where the TID of the delay-sensitive service in the reported buffer status is located, and the variable flow identification field and the access type index bitmap field are used to indicate that the first site is The number of TIDs of delay-sensitive services in the reported buffer status.
  • the high-priority access type index field is used to indicate the AC where the TIDs of the delay-sensitive services corresponding to the BSR indicated by the first queue field are located.
  • the first queue The field is used to indicate the buffer traffic size that meets the preset emergency level requirements or range corresponding to the TID of the delay-sensitive service in the AC indicated by the high-priority access type field to be sent to the target device.
  • the second queue The field is used to indicate the buffer traffic size that meets the preset emergency level requirements or range corresponding to the TIDs of all delay-sensitive services in the AC indicated by the access type index bitmap field to be sent to the target device;
  • the target device is identified by a receiver address of a frame containing the first BSR control field, and the preset emergency level requirement or range is indicated by a trigger frame sent by the second station.
  • the first BSR control field is a new variant of the BSR control subfield.
  • the first station when the first station receives a trigger frame sent by the second station and the trigger frame instructs the first station to report a buffer status report based on the urgency of the data to be transmitted, the first station Use the new variant of the BSR control subfield to report the first BSR.
  • the first BSR is carried by the second BSR control field
  • the second BSR control field includes at least one of the following: access type index bitmap field, variable flow identification field, whether based on service period field, second delay expiration indication bitmap field, conversion coefficient field and buffer specific traffic size field;
  • the access type index bitmap field is used to indicate the AC where the TID of the delay-sensitive service in the reported buffer status is located, and the variable flow identification field and the access type index bitmap field are used to indicate that the first site is The number of TIDs of delay-sensitive services in the reported buffer status, the whether based on service cycle field is used to indicate whether it is based on service cycle to represent the preset emergency level requirement or range, the second delay expiration indication bitmap field is used to indicate The target buffer traffic associated with the TIDs of delay-sensitive services in all ACs indicated by the buffer-specific traffic size field.
  • the conversion coefficient field is used to indicate the unit corresponding to the buffer-specific traffic size field.
  • the buffer-specific traffic size field is The traffic size field is used to indicate the buffer traffic size that meets the preset emergency level requirements or range corresponding to the TIDs of all delay-sensitive services in the AC indicated by the access type index bitmap field to be sent to the target device;
  • the target device is identified by the receiver address of the frame containing the second BSR control field, and the preset urgency requirement or range is indicated by the second delay expiration indication bitmap field.
  • the first value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to all target TIDs or target TIDs of the target AC;
  • the second value of the second delay expiration indication bitmap field indicates that the target buffer traffic is the buffer traffic corresponding to the target TID whose transmission delay has expired at the current moment or the target TID of the target AC;
  • the third value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment.
  • the first time is the current time
  • the second time is the end time point of the currently allocated service cycle, the starting time point of the next allocated service cycle, and the end time point of the next allocated service cycle. ;
  • the fourth value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment.
  • the first time is the end time point of the currently allocated service cycle
  • the second time is one of the following: the starting time point of the next allocated service cycle, the end time of the next allocated service cycle point;
  • the fifth value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment.
  • the first moment is the starting time point of the next allocated service cycle
  • the second moment is the end time point of the next allocated service cycle;
  • the target AC is the AC where the TID of the delay-sensitive service is located, and the target TID is the TID of the delay-sensitive service.
  • the first value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to all target TIDs or target TIDs of the target AC;
  • the second value of the second delay expiration indication bitmap field indicates that the target buffer traffic is the buffer traffic corresponding to the target TID whose transmission delay has expired at the current moment or the target TID of the target AC;
  • the third value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment.
  • the first moment is the current moment
  • the second moment is one of the following: the end time point of the current scheduling cycle, the starting time point of the next scheduling cycle, and the end time point of the next scheduling cycle;
  • the fourth value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment.
  • the first moment is the end time point of the current scheduling cycle
  • the second moment is one of the following: the starting time point of the next scheduling cycle, the end time point of the next scheduling cycle;
  • the fifth value of the second delay expiration indication bitmap field indicates that the target buffer traffic is buffer traffic corresponding to the target TID or the target TID of the target AC whose transmission delay has not expired at the first moment and expired at the second moment.
  • the first moment is the starting time point of the next scheduling cycle
  • the second moment is the ending time point of the next scheduling cycle
  • the target AC is the AC where the TID of the delay-sensitive service is located, the target TID is the TID of the delay-sensitive service, and the scheduling period is used to schedule the transmission of the delay-sensitive service.
  • the second BSR control field is a BSR control subfield based on the urgency of the data to be transmitted.
  • the first BSR is carried by the third BSR control field
  • the third BSR control field includes at least one of the following: access type index bitmap field, variable flow identification field, whether based on service period field, delay expiration time difference limit field, delay conversion coefficient field and buffer specific field. Traffic size field;
  • the access type index bitmap field is used to indicate the AC where the TID of the delay-sensitive service in the reported buffer status is located, and the variable flow identification field and the access type index bitmap field are used to indicate that the first site is The number of TIDs of delay-sensitive services in the reported buffer status.
  • the whether the delay is based on the service cycle field is used to indicate whether the preset emergency level requirement or range is based on the service cycle.
  • the delay conversion coefficient field is used to indicate that the delay is to The unit corresponding to the delay time difference limit field.
  • the delay time difference limit field is used to indicate the preset urgency requirements or range that the buffer data corresponding to the status report information to be reported needs to meet.
  • the buffer flow conversion coefficient field Used to indicate the unit corresponding to the buffer specific traffic size field.
  • the buffer specific traffic size field is used to indicate the delay-sensitive services in all ACs indicated by the access type index bitmap field to be sent to the target device.
  • the target device is identified by the receiver address of the frame containing the third BSR control field, and the preset urgency requirement or range is indicated by the delay expiration time difference limit field.
  • the delay expiry difference limit field indicates the status corresponding to the delay-sensitive service data in the first station reporting buffer whose delay expiration difference is less than or equal to the delay expiration difference limit. Report information.
  • the third BSR control field is a BSR control subfield based on the urgency of the data to be transmitted.
  • the service period is a service period of the restricted target wake-up time r-TWT
  • the first site is a scheduled site of the r-TWT.
  • the delay expiration time difference is the time difference between the current time of the delay-sensitive service data and the transmission delay expiration time point of the delay-sensitive service data, or the delay expiration time difference. It is the time difference between the target time of the delay-sensitive service data and the expiration time point of the transmission delay of the delay-sensitive service data.
  • the time point at which the transmission delay expires refers to the time when the MSDU or A-MSDU belonging to the delay-sensitive service flow reaches the MAC sublayer from the local media access control MAC service access point after a limited delay. long time point;
  • the limited delay is the maximum duration allowed to transmit MSDU or A-MSDU.
  • the transmission delay has expired means that the delay expiration difference of the MSDU or A-MSDU to be transmitted at the current moment is less than or equal to zero, or the transmission delay has expired means that the MSDU or A-MSDU to be transmitted has expired.
  • the delay expiration difference of the MSDU for the current moment is less than the delay expiration deviation threshold; and/or,
  • the transmission delay expiration means that the delay expiration time difference of the MSDU or A-MSDU to be transmitted with respect to the target time is less than or equal to zero, or the transmission delay expiration means that the time delay of the MSDU or A-MSDU to be transmitted with respect to the target time is The delay time difference is less than the delay expiration deviation threshold; and/or,
  • the transmission delay has not expired means that the delay expiration difference of the MSDU or A-MSDU to be transmitted with respect to the target time is greater than zero, or the transmission delay has not expired means that the delay of the MSDU or A-MSDU to be transmitted with respect to the target time is greater than zero.
  • the expiration time difference is greater than or equal to the delay expiration deviation threshold.
  • the delay expiration deviation threshold is the time interval between the MSDU or A-MSDU transmission start time point and the successful transmission confirmation time point.
  • the first site is a non-access point site non-AP STA
  • the second site is an access point site AP STA.
  • the first station is a non-AP STA and the second station is another non-AP STA; or,
  • the first site is an AP STA
  • the second site is another AP STA.
  • the above-mentioned communication unit may be a communication interface or transceiver, or an input/output interface of a communication chip or a system on a chip.
  • site equipment 400 may correspond to the second site in the method embodiment of the present application, and the above and other operations and/or functions of the various units in the site equipment 400 are respectively to implement what is shown in Figure 4
  • the corresponding process of the second site in method 200 will not be described again for the sake of simplicity.
  • Figure 16 is a schematic structural diagram of a communication device 500 provided by an embodiment of the present application.
  • the communication device 500 shown in Figure 16 includes a processor 510.
  • the processor 510 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • communication device 500 may also include memory 520.
  • the processor 510 can call and run the computer program from the memory 520 to implement the method in the embodiment of the present application.
  • the memory 520 may be a separate device independent of the processor 510 , or may be integrated into the processor 510 .
  • the communication device 500 may also include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices, specifically, may send information or data to other devices, or Receive information or data from other devices.
  • the transceiver 530 may include a transmitter and a receiver.
  • the transceiver 530 may further include an antenna, and the number of antennas may be one or more.
  • the communication device 500 may be specifically the site device of the embodiment of the present application, and the communication device 500 may implement the corresponding processes implemented by the first site in the various methods of the embodiment of the present application. For the sake of simplicity, here No longer.
  • the communication device 500 can be specifically the site device of the embodiment of the present application, and the communication device 500 can implement the corresponding processes implemented by the second site in the various methods of the embodiment of the present application. For the sake of simplicity, here No longer.
  • Figure 17 is a schematic structural diagram of the device according to the embodiment of the present application.
  • the device 600 shown in Figure 17 includes a processor 610.
  • the processor 610 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • device 600 may also include memory 620.
  • the processor 610 can call and run the computer program from the memory 620 to implement the method in the embodiment of the present application.
  • the memory 620 may be a separate device independent of the processor 610 , or may be integrated into the processor 610 .
  • the device 600 may also include an input interface 630.
  • the processor 610 can control the input interface 630 to communicate with other devices or chips. Specifically, it can obtain information or data sent by other devices or chips.
  • the device 600 may also include an output interface 640.
  • the processor 610 can control the output interface 640 to communicate with other devices or chips. Specifically, it can output information or data to other devices or chips.
  • the device can be applied to the site equipment in the embodiments of the present application, and the device can implement the corresponding processes implemented by the first site in the various methods of the embodiments of the present application. For the sake of brevity, they will not be described again here. .
  • the device can be applied to the site equipment in the embodiments of the present application, and the device can implement the corresponding processes implemented by the second site in the various methods of the embodiments of the present application. For the sake of brevity, they will not be described again. .
  • the devices mentioned in the embodiments of this application may also be chips.
  • it can be a system-on-a-chip, a system-on-a-chip, a system-on-a-chip or a system-on-a-chip, etc.
  • Figure 18 is a schematic block diagram of a communication system 700 provided by an embodiment of the present application. As shown in FIG. 18 , the communication system 700 includes a first site 710 and a second site 720 .
  • the first site 710 can be used to implement the corresponding functions implemented by the first site in the above method
  • the second site 720 can be used to implement the corresponding functions implemented by the second site in the above method.
  • I won’t go into details here.
  • the processor in the embodiment of the present application may be an integrated circuit chip and has signal processing capabilities.
  • each step of the above method embodiment can be completed through an integrated logic circuit of hardware in the processor or instructions in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available processors.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.
  • the steps of the method disclosed in conjunction with the embodiments of the present application can be directly implemented by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other mature storage media in this field.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory. Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which is used as an external cache.
  • RAM Random Access Memory
  • RAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • Synchlink DRAM SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application can also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, memories in embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.
  • Embodiments of the present application also provide a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium can be applied to the site equipment in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the first site in the various methods of the embodiments of the present application. For the sake of simplicity , which will not be described in detail here.
  • the computer-readable storage medium can be applied to the site equipment in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the second site in the various methods of the embodiments of the present application. For the sake of simplicity , which will not be described in detail here.
  • An embodiment of the present application also provides a computer program product, including computer program instructions.
  • the computer program product can be applied to the site equipment in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the first site in the various methods of the embodiments of the present application. For the sake of simplicity, I won’t go into details here.
  • the computer program product can be applied to the site equipment in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the second site in the various methods of the embodiments of the present application. For the sake of simplicity, I won’t go into details here.
  • An embodiment of the present application also provides a computer program.
  • the computer program can be applied to the site equipment in the embodiments of the present application.
  • the computer program When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the first site in each method of the embodiments of the present application. , for the sake of brevity, will not be repeated here.
  • the computer program can be applied to the site equipment in the embodiments of the present application.
  • the computer program When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the second site in each method of the embodiments of the present application. , for the sake of brevity, will not be repeated here.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code. .

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Abstract

本申请实施例提供了一种无线通信的方法及设备，第一站点可以通过第一BSR向第二站点发送基于待传输数据紧急程度的缓冲区状态报告信息，从而，第二站点可以基于第一站点上报的基于待传输数据紧急程度的传输需求进行UL MU资源的分配，进而满足时延敏感业务的传输需求。该无线通信的方法，包括：第一站点向第二站点发送第一BSR；其中，该第一BSR至少包括第一状态报告信息，该第一状态报告信息为基于待传输数据紧急程度的缓冲区状态报告信息。

Description

无线通信的方法及设备 技术领域
本申请实施例涉及通信领域，并且更具体地，涉及一种无线通信的方法及设备。
背景技术
非接入点站点(non-Access Point Station，non-AP STA)可以主动上报缓冲区状态报告(buffer status report，BSR)，也可以基于接入点站点(Access Point Station，AP STA)的触发上报BSR。通过non-AP STA上报BSR，以协助AP STA能基于non-AP STA的上行(uplink，UL)传输需求进行上行多用户(multi-user，MU)资源的分配。然而，现阶段non-AP STA上报的BSR无法满足时延敏感业务的传输需求。
发明内容
本申请实施例提供了一种无线通信的方法及设备，第一站点可以通过第一BSR向第二站点发送基于待传输数据紧急程度的缓冲区状态报告信息，从而，第二站点可以基于第一站点上报的基于待传输数据紧急程度的传输需求进行UL MU资源的分配，进而满足时延敏感业务的传输需求。
第一方面，提供了一种无线通信的方法，该方法包括：
第一站点向第二站点发送第一BSR；
其中，该第一BSR至少包括第一状态报告信息，该第一状态报告信息为基于待传输数据紧急程度的缓冲区状态报告信息。
第二方面，提供了一种无线通信的方法，该方法包括：
第二站点接收第一站点发送的第一BSR；
其中，该第一BSR至少包括第一状态报告信息，该第一状态报告信息为基于待传输数据紧急程度的缓冲区状态报告信息。
第三方面，提供了一种站点设备，用于执行上述第一方面中的方法。
具体地，该站点设备包括用于执行上述第一方面中的方法的功能模块。
第四方面，提供了一种站点设备，用于执行上述第二方面中的方法。
具体地，该站点设备包括用于执行上述第二方面中的方法的功能模块。
第五方面，提供了一种站点设备，包括处理器和存储器；该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，使得该站点设备执行上述第一方面中的方法。
第六方面，提供了一种站点设备，包括处理器和存储器；该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，使得该站点设备执行上述第二方面中的方法。
第七方面，提供了一种装置，用于实现上述第一方面至第二方面中的任一方面中的方法。
具体地，该装置包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有该装置的设备执行如上述第一方面至第二方面中的任一方面中的方法。
第八方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序使得计算机执行上述第一方面至第二方面中的任一方面中的方法。
第九方面，提供了一种计算机程序产品，包括计算机程序指令，所述计算机程序指令使得计算机执行上述第一方面至第二方面中的任一方面中的方法。
第十方面，提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面至第二方面中的任一方面中的方法。
通过上述技术方案，第一站点可以通过第一BSR向第二站点发送基于待传输数据紧急程度的缓冲区状态报告信息，从而，第二站点可以基于第一站点上报的基于待传输数据紧急程度的传输需求进行UL MU资源的分配，进而满足时延敏感业务的传输需求。
附图说明
图1是本申请实施例应用的一种通信系统架构的示意性图。
图2是本申请提供的一种BSR控制子域的示意性图。
图3是本申请提供的一种时延敏感业务在传输过程中可能存在的问题的示意性图。
图4是根据本申请实施例提供的一种无线通信的方法的示意性交互流程图。
图5是根据本申请实施例提供的一种MSDU或A-MSDU的时延到期时差的示意性图。
图6是根据本申请实施例提供的一种STA1、STA2和STA3的时延到期时差的示意性图。
图7是根据本申请实施例提供的一种触发类型子域的示意性图。
图8是根据本申请实施例提供的一种触发关联通用信息字段的示意性图。
图9是根据本申请实施例提供的另一种触发关联通用信息字段的示意性图。
图10是根据本申请实施例提供的一种第二BSR控制字段的示意性图。
图11是根据本申请实施例提供的一种第三BSR控制字段的示意性图。
图12是根据本申请实施例提供的一种r-TWT服务周期缓冲区时延敏感业务数据状态上报的示意性图。
图13是根据本申请实施例提供的一种基于AP STA触发调度场景的缓冲区时延敏感业务数据状态上报的示意性图。
图14是根据本申请实施例提供的一种站点设备的示意性框图。
图15是根据本申请实施例提供的一种站点设备的示意性框图。
图16是根据本申请实施例提供的一种通信设备的示意性框图。
图17是根据本申请实施例提供的一种装置的示意性框图。
图18是根据本申请实施例提供的一种通信系统的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。针对本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种通信系统，例如：无线局域网(Wireless Local Area Networks，WLAN)、无线保真(Wireless Fidelity，WiFi)或其他通信系统等。
示例性的，本申请实施例应用的通信系统100如图1所示。该通信系统100可以包括接入点(Access Point，AP)110，以及通过AP 110接入网络的站点(Station，STA)120。
在一些场景中，AP可以或称AP STA，即在某种意义上来说，AP也是一种STA。在一些场景中，STA或称为非AP STA(non-AP STA)。
在一些实施例中，STA可以包括AP STA和non-AP STA。
通信系统100中的通信可以是AP与STA之间通信，也可以是STA与STA之前通信，或者STA和另一个(peer STA)之间通信，其中，peer STA可以指与STA对端通信的设备，例如，peer STA可能为AP，也可能为non-AP STA。
AP相当于一个连接有线网和无线网的桥梁，主要作用是将各个无线网络客户端连接到一起，然后将无线网络接入以太网。AP设备可以是带有WiFi芯片的终端设备(如手机)或者网络设备(如路由器)。
应理解，STA在通信系统中的角色不是绝对的，例如，在一些场景中，手机连接路由的时候，手机是STA，手机作为其他手机的热点的情况下，手机充当了AP的角色。
AP和STA可以是应用于车联网中的设备，物联网(internet of things，IoT)中的物联网节点、传感器等，智慧家居中的智能摄像头，智能遥控器，智能水表电表等，以及智慧城市中的传感器等。
在一些实施例中，STA可以支持802.11be制式。STA也可以支持802.11ax、802.11ac、802.11n、802.11g、802.11b及802.11a等多种当前以及未来的802.11家族的WLAN制式。
在一些实施例中，AP可以为支持802.11be制式的设备。AP也可以为支持802.11ax、802.11ac、802.11n、802.11g、802.11b及802.11a等多种当前以及未来的802.11家族的WLAN制式的设备。
在一些实施例中，AP 110和/或STA 120可以部署在陆地上，包括室内或室外、手持、穿戴或车载；也可以部署在水面上(如轮船)；还可以部署在空中(例如飞机、气球和卫星上等)。
在本申请实施例中，STA 120可以是支持WLAN/WiFi技术的手机(Mobile Phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality，VR)设备、增强现实(Augmented Reality，AR)设备、工业控制(industrial control)中的无线设备、机顶盒、无人驾驶(self driving)中的无线设备、车载通信设备、远程医疗(remote medical)中的无线设备、智能电网(smart grid)中的无线设备、运输安全(transportation safety)中的无线设备、智慧城市(smart city)中的无线设备或智慧家庭(smart home)中的无线设备、车载通信设备、无线通信芯片/专用集成电路(application specific integrated circuit，ASIC)/系统级芯片(System on Chip，SoC)等。
作为示例而非限定，在本申请实施例中，STA 120还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能， 例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
WLAN技术可支持频段可以包括但不限于：低频段(2.4GHz、5GHz、6GHz)、高频段(60GHz)。
图1示例性地示出了一个AP和两个STA，在一些实施例中，该通信系统100可以包括多个AP以及包括其它数量的STA，本申请实施例对此不做限定。
应理解，本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图1示出的通信系统100为例，通信设备可包括具有通信功能的AP 110和STA 120，AP 110和STA 120可以为上文所述的具体设备，此处不再赘述；通信设备还可包括通信系统100中的其他设备，例如网络控制器、网关等其他网络实体，本申请实施例中对此不做限定。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
应理解，在本申请的实施例中提到的“指示”可以是直接指示，也可以是间接指示，还可以是表示具有关联关系。举例说明，A指示B，可以表示A直接指示B，例如B可以通过A获取；也可以表示A间接指示B，例如A指示C，B可以通过C获取；还可以表示A和B之间具有关联关系。
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释，而非旨在限定本申请。本申请的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。
在本申请实施例的描述中，术语“对应”可表示两者之间具有直接对应或间接对应的关系，也可以表示两者之间具有关联关系，也可以是指示与被指示、配置与被配置等关系。
本申请实施例中，“预定义”或“预配置”可以通过在设备(例如，包括STA和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现，本申请对于其具体的实现方式不做限定。比如预定义可以是指协议中定义的。
本申请实施例中，所述“协议”可以指通信领域的标准协议，例如可以包括WiFi协议以及应用于未来的WiFi通信系统中的相关协议，本申请对此不做限定。
为便于理解本申请实施例的技术方案，以下通过具体实施例详述本申请的技术方案。以下相关技术作为可选方案与本申请实施例的技术方案可以进行任意结合，其均属于本申请实施例的保护范围。本申请实施例包括以下内容中的至少部分内容。
无线设备支持多频段通信，例如，同时在2.4GHz，5GHz，6GHz以及60GHz频段上进行通信，或者同时在同一频段(或不同频段)的不同信道上通信，提高设备之间的通信吞吐量和/或可靠性。这种设备通常称为多频段设备，或称为多链路设备(Multi-Link Device，MLD)，有时也称为多链路实体或多频段实体。多链路设备可以是接入点设备，也可以是站点设备。如果多链路设备是接入点设备，则多链路设备中包含一个或多个AP；如果多链路设备是站点设备，则多链路设备中包含一个或多个non-AP STA。
为便于理解本申请实施例的技术方案，以下对本申请相关BSR机制进行说明。
802.11ax提出了缓冲区状态报告(buffer status report，BSR)上报机制，定义了用于上行多用户操作(UL MU operation)的缓冲区状态报告信息，通过non-AP STA上报BSR，以协助AP能基于non-AP STA的上行传输需求进行UL MU资源的分配。
BSR机制包括两种BSR上报方式：
1)non-AP STA主动上报(非请求的BSR)：non-AP STA可以在传输到AP的任何帧的服务质量(Quality of Service，QoS)控制域(Control field)或BSR控制子域(Control subfield)中传递BSR；
2)AP触发Non-AP STA上报(请求的BSR)：AP发送缓冲状态报告轮询(buffer status report poll，BSRP)触发帧(Trigger frame)，non-AP STA可在传递给AP的用于响应BSRP Trigger Frame的任何帧中传递BSR。
在QoS Control field中报告的缓冲区状态包含给定流标识(traffic identifier，TID)的队列大小，而在BSR Control field中报告的缓冲区状态包含访问类型索引(access category index，ACI)位图(ACI bitmap)，变量流标识(delta TID)，高优先级访问类型(ACI High)和两个队列大小(高优先级队列大小(Queue Size High)与所有队列大小(Queue Size All))等子域信息，如图2所示。
其中，ACI bitmap子域指示所报告缓冲区状态的访问类别；
Delta TID子域与ACI Bitmap子域一起用于指示STA正在报告的缓冲区状态的TID数目；
ACI High子域指示Queue Size High子域所指示的BSR对应的访问类型(access category，AC)；
Queue Size High子域指示准备发给特定STA的由ACI High所标识AC的缓冲区流量大小，其中特定STA通过包含BSR Control子域的帧的接收者地址来标识；
Queue Size All子域指示准备发给特定STA的由ACI Bitmap子域所标识的所有AC的缓冲区流量大小，其中特定STA通过包含BSR Control子域的帧的接收者地址来标识。
为便于理解本申请实施例的技术方案，以下对本申请相关受限目标唤醒时间(Restricted Target Wake Time，r-TWT)进行说明。
目标唤醒时间(Target Wake Time，TWT)首次出现在802.11ah“Wi-Fi HaLow”标准中，其用于支持大规模物联网环境下的节能工作。在802.11ax中，TWT机制在802.11ah的基础上，增加了支持基于触发的上行链路传输，从而扩展了TWT工作的范围。
在TWT中，STA和AP之间建立了一张时间表(该时间表是STA和AP协定的)，时间表是由TWT时间周期所组成的。当STA和AP所协商的时间周期到达后，STA会醒来，并等待AP发送的触发帧，并进行一次数据交换。当本次传输完成后，返回睡眠状态。每一个STA可以和AP都会进行独立的协商，每一个STA都具有单独的TWT时间周期。
TWT允许AP管理基本服务集(Basic Service Set，BSS)的行为以减轻站点间的竞争并减少采用功耗管理模式的站点醒着的时间，这是通过站点在非重叠的时域和/或频域进行操作并且把帧交换集中于预定义的服务周期而实现的。因此，为保证TWT的应用效果，AP一般要求BSS内的关联站点都能加入到TWT中以便AP进行调度；按802.11ax的TWT协议规定，高效率(High-efficiency，HE)(特指802.11ax)的AP会请求所有宣称支持TWT的关联站点参与TWT，非AP站点在收到AP的需加入TWT的指示后应进行个别定制的TWT(individual TWT)协议协商，或者加入到广播TWT(broadcast TWT)。而且，TWT的服务周期(service period，SP)包括触发使能的SP与非触发使能的SP，TWT调度AP在触发使能的SP中通过发送触发帧进行调度。同时，802.11ax规定，在broadcast TWT SP之外TWT预定站点不能传输帧给TWT调度AP，而且，在触发使能的广播TWT中，TWT预定站点不能传输不携带于HE基于触发的物理层协议数据单元(Physical layer protocol data unit，PPDU)的帧给TWT调度AP。
r-TWT基于广播TWT。在广播TWT操作中，TWT调度AP(TWT scheduling AP)在广播的信标帧中携带广播TWT元素(broadcast TWT element)指示广播TWT服务周期(broadcast TWT SP)。其中，在触发使能的服务周期中，AP在竞争到信道接入机会后，传输触发帧或下行的缓存单元(buffer unit，BU)给TWT预定站点(TWT scheduled STA)。
802.11be提出了r-TWT的操作，以允许AP利用增强的媒介接入保护和资源预留机制来为低时延业务的传输提供更可预测的、较低的最坏时延和抖动，以及更高的可靠性。目前，r-TWT在信道接入方面主要增加了两条信道接入规则：极高吞吐量(extremely high throughput，EHT)的non-AP STA作为传输机会(transmission opportunity，TXOP)拥有者，当该TXOP是在r-TWT服务周期之外获取的，应确保在任何一个r-TWT服务周期的开始之前结束其TXOP；EHT AP会调度与r-TWT服务周期重叠的安静时间间隔(quiet interval)，以屏蔽支持安静元素(Quiet Element)的遗留STA在TWT SP内的操作，但该安静时间间隔内的屏蔽操作对于EHT non-AP STA无效。
为便于理解本申请实施例的技术方案，以下对本申请相关时延敏感业务，以及本申请所解决的问题进行说明。
802.11be定义的时延敏感业务(或称低时延业务)的传输流程如图3所示。非AP站点(non-AP STA)向AP发送携带服务质量(Quality of Service，QoS)特征元素(QoS Characteristics element)的流分类服务(stream classification service，SCS)请求，其中，QoS特征元素包含用于满足时延敏感业务传输需求的建议参数，包括方向(Direction，如上行)、流标识(TID)、最小服务间隔(Minimum Service Interval)、最大服务间隔(Maximum Service Interval)、最小数据速率(Minimum Data Rate)、时延限值(Delay Bound)等。AP接收到SCS请求后，如果接受该请求，回复SCS请求接受应答给non-AP STA。然后，AP与non-AP STA之间根据SCS的协商结果建立r-TWT，并确定用于在预定的服务周期(service period，SP)内传输的时延敏感业务的上行或下行流标识(TID)。non-AP STA在AP宣告的预定服务周期进行时延敏感业务传输，比如AP可通过发送触发帧，来指定哪些r-TWT预定站点进行上行传输，同时给各预定站点分配传输资源(资源单元(resource unit，RU)或多资源单元(multiple resource unit，MRU)、调制与编码方案(modulation and coding scheme，MCS)和空间流等)。
由此可见，SCS协商与r-TWT建立过程中只是按照时延敏感业务的传输需求确定了大致的服务间隔范围与传输速率范围，同时，AP经常在同一个预定服务周期中对多个r-TWT预定站点的时延敏感业务进行协调调度传输，而且无线信道环境经常发生变化，因此存在如何实时协调调度时延敏感业 务传输的问题。对于non-AP STA，由于1)突发流量或2)本应在当前服务周期SP(如SPi)中传输的流量由于信道质量或重叠的基本服务集(Overlapping Basic Service Set，OBSS)干扰没完成传输，而在下一个SP(如SP(i+1))需要更多的传输资源。而AP对于下一个SP(如SP(i+1))，需确定以下问题才能协调好给一个或多个r-TWT预定站点分配传输资源：r-TWT预定站点有多少待传输数据，待传输数据的紧急程度如何，哪些待传输数据需优先传输。
目前的BSR未能提供与时延需求相关的信息，对于时延敏感业务的传输无法及时提供业务数据发送紧急程度相关的信息，AP无法按照各站点的时延敏感业务发送的紧急程度进行调度，特别对于r-TWT SP期间的传输，无法对有时延界限(Delay Bound)要求的数据进行实时调度与传输。
基于上述问题，本申请提出了一种上报BSR的方案，第一站点可以通过第一BSR向第二站点发送基于待传输数据紧急程度的缓冲区状态报告信息，从而，第二站点可以基于第一站点上报的基于待传输数据紧急程度的传输需求进行UL MU资源的分配，进而满足时延敏感业务的传输需求。
以下通过具体实施例详述本申请的技术方案。
图4是根据本申请实施例的无线通信的方法200的示意性流程图，如图4所示，该无线通信的方法200可以包括如下内容中的至少部分内容：
S210，第一站点向第二站点发送第一BSR；其中，该第一BSR至少包括第一状态报告信息，该第一状态报告信息为基于待传输数据紧急程度的缓冲区状态报告信息；
S220，该第二站点接收该第一站点发送的该第一BSR。
在本申请实施例中，第二站点可以基于第一站点上报的基于待传输数据紧急程度的传输需求进行UL MU资源的分配，进而满足时延敏感业务的传输需求。
在一些实施例中，该第一站点为non-AP STA，该第二站点为AP STA。
在另一些实施例中，该第一站点为non-AP STA，该第二站点为另一个non-AP STA；或者，该第一站点为AP STA，该第二站点为另一个AP STA。
在一些实施例中，该第一BSR可以是基于待传数据紧急程度的BSR(U-BSR)。
需要说明的是，在本申请实施例中，“字段”也可以称之为“域(field)”或“子域(subfield)”。
本申请针对802.11定义的缓冲区状态报告(BSR)未能提供与时延需求相关的信息，对于时延敏感业务(或称低时延业务)的传输无法及时提供业务数据发送紧急程度相关的信息，提出基于待传输数据紧急程度的BSR(Urgency-based BSR，U-BSR)机制，对于传输时延有限值要求的业务的传输过程中的缓冲区状态报告信息上报的操作方法，本申请中的方案也适用。
在一些实施例中，该第一状态报告信息包括缓冲区中满足预设紧急程度要求或范围的时延敏感业务数据的状态报告信息。
在一些实施例中，该预设紧急程度要求或范围可以由AP STA配置或指示，或者，该预设紧急程度要求或范围可以由协议约定，或者，该预设紧急程度要求或范围可以由该第一站点与该第二站点协商确定。
在一些实施例中，该预设紧急程度要求或范围基于服务周期关联的传输时延过期的缓冲区中时延敏感业务数据的状态报告信息表示；或者，该预设紧急程度要求或范围基于调度周期关联的传输时延过期的缓冲区中时延敏感业务数据的状态报告信息表示，其中，该调度周期用于调度进行时延敏感业务的传输。可选地，该第一状态报告信息具体包括以下至少之一：缓冲区中传输时延已过期的时延敏感业务的数据大小，缓冲区中传输时延在第一时刻未过期且在第二时刻过期的时延敏感业务的数据大小。
在一些实施例中，该第二时刻晚于该第一时刻。
在一些实施例中，该第一时刻为当前时刻，且该第二时刻为以下之一：当前所分配的服务周期的结束时间点，下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；或者，该第一时刻为当前所分配的服务周期的结束时间点，且该第二时刻为以下之一：下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；或者，该第一时刻为下一个所分配的服务周期的起始时间点，且该第二时刻为下一个所分配的服务周期的结束时间点。
在一些实施例中，该第一时刻为当前时刻，且该第二时刻为以下之一：当前调度周期的结束时间点，下一次调度周期的起始时间点，下一次调度周期的结束时间点；或者，该第一时刻为当前调度周期的结束时间点，且该第二时刻为以下之一：下一次调度周期的起始时间点，下一次调度周期的结束时间点；或者，该第一时刻为下一次调度周期的起始时间点，且该第二时刻为下一次调度周期的结束时间点；其中，该调度周期用于调度进行时延敏感业务的传输。
在一些实现方式中，在基于待输传时延敏感业务数据的紧急程度区分缓冲区状态报告信息的内容基于服务周期或调度周期相应时刻传输时延过期的缓冲区时延敏感业务数据的状态报告信息表示的 情况下，该第一BSR可以由基于待传输数据紧急程度的BSR控制子域承载，其中，基于待传输数据紧急程度的BSR控制子域可以包含以下信息中的至少之一：
缓冲区中所有待传时延敏感业务数据的流量大小；
缓冲区中当前时刻已时延过期的待传输时延敏感业务数据的流量大小；
缓冲区中当前时刻还未时延过期但到给定时间点T1将时延过期的待传输时延敏感业务数据的流量大小；
缓冲区中在时间点T1还未时延过期但到给定时间点T2(T2>T1,即T2晚于T1)将时延过期的待传输时延敏感业务数据的流量大小；
缓冲区中在时间点T2还未时延过期但到给定时间点T3(T3>T2,即T3晚于T2)将时延过期的待传输时延敏感业务数据的流量大小。
其中，时延敏感业务数据可通过目标TID(或AC)的业务数据来指示，比如针对已建立r-TWT的站点而言，已成功建立的r-TWT对应的r-TWT DL TID(s)或r-TWT UL TID(s)作为时延敏感业务的TID。对于已建立r-TWT并分配了r-TWT服务周期的站点而言，时间点T1可定为当前所分配(scheduled)的服务周期的结束时间点，时间点T2可定为下一个所分配(scheduled)的服务周期的起始时间点，时间点T3可定为下一个所分配(scheduled)的服务周期的结束时间点。或者，时间点T1、T2、T3可预先进行设定。
在一些实施例中，该服务周期为r-TWT的服务周期，且该第一站点为该r-TWT的预定站点。
在一些实施例中，传输时延过期的时间点是指属于时延敏感业务流的媒体接入控制服务数据单元(Media Access Control Service Data Unit，MSDU)或者聚合媒体接入控制服务数据单元(Aggregate Media Access Control Service Data Unit，A-MSDU)从本地媒体接入控制(Media Access Control，MAC)服务访问点(Service Access Point，SAP)到达MAC子层的时间点开始经过限定时延时长的时间点；其中，该时延限值(Delay bound)为允许传输MSDU或者A-MSDU的最大时长。
在一些实施例中，传输时延已过期是指待传输的MSDU或者A-MSDU针对当前时刻的时延到期时差小于或等于零，或者，传输时延已过期是指待传输的MSDU或者A-MSDU针对当前时刻的时延到期时差小于时延过期偏差阈值。即待传输的MSDU或A-MSDU从MAC SAP到达MAC子层的时间点开始经过时延限值(Delay bound)还未传输，或者，待传输的MSDU或A-MSDU从MAC SAP到达MAC子层的时间点开始经过限定时延-时延过期偏差阈值(Delay bound-Expire Deviation Threshold)还未传输。
在一些实施例中，传输时延过期是指待传输的MSDU或者A-MSDU针对目标时刻的时延到期时差小于或等于零，或者，传输时延过期是指待传输的MSDU或者A-MSDU针对目标时刻的时延到期时差小于时延过期偏差阈值。其中，目标时刻为当前时刻之后的某一时刻。
在一些实施例中，传输时延未过期是指待传输的MSDU或者A-MSDU针对目标时刻的时延到期时差大于零，或者，传输时延未过期是指待传输的MSDU或者A-MSDU针对目标时刻的时延到期时差大于或等于时延过期偏差阈值。即MSDU或A-MSDU从MAC SAP到达MAC子层的时间点开始的等待传输时间小于时延限值(Delay bound)或者小于限定时延-时延过期偏差阈值(Delay bound-Expire Deviation Threshold)。其中，目标时刻为当前时刻之后的某一时刻。
在一些实施例中，该时延过期偏差阈值为MSDU或A-MSDU从开始传输时间点到确认成功传输时间点之间的时间间隔。
在一些实施例中，该预设紧急程度要求或范围基于时延到期时差限值(TimetoDelayExpire Bound)范围的缓冲区中时延敏感业务数据的状态报告信息表示。可选地，该第一状态报告信息具体包括缓冲区中时延到期时差小于或等于该时延到期时差限值的时延敏感业务的数据大小。
在一些实施例中，该时延到期时差限值由AP STA配置或指示，或者，该时延到期时差限值由协议约定。
在一些实施例中，该时延到期时差为时延敏感业务数据从当前时刻到该时延敏感业务数据的传输时延过期时间点之间的时间差值，或者，该时延到期时差为时延敏感业务数据从目标时刻到该时延敏感业务数据的传输时延过期时间点之间的时间差值。其中，目标时刻为当前时刻之后的某一时刻。
在一些实现方式中，在基于待输传时延敏感业务数据的紧急程度区分缓冲区状态报告信息的内容基于时延到期时差限值(TimetoDelayExpire Bound)范围的缓冲区时延敏感业务数据的状态报告信息表示的情况下，该第一BSR可以由基于待传输数据紧急程度的BSR控制子域承载，其中，基于待传输数据紧急程度的BSR控制子域(U-BSR Control subfield)可以包含指示需要上报状态报告信息的缓冲区数据需满足的紧急程度范围，用于表示上报缓冲区中的时延到期时差小于或等于时延到期时差限值的时延敏感业务MSDU或者A-MSDU所对应的状态报告信息。
需要说明的是，时延到期时差(Time to delay expire)也可以称之为到时延过期点的时间，具体是指对于特定业务流(traffic flow)的MSDU或者A-MSDU，从当前时刻到该MSDU或者A-MSDU的传输时延过期时间点之间的时间差值，如图5所示，可规定：当MSDU或者A-MSDU的传输时延过期时间点晚于当前时刻时，其时延到期时差大于零；当MSDU或者A-MSDU的传输时延过期时间点早于当前时刻时，其时延到期时差小于零。或者，时延到期时差(Time to delay expire)具体是指对于特定业务流(traffic flow)的MSDU或者A-MSDU，从目标时刻到该MSDU或者A-MSDU的传输时延过期时间点之间的时间差值，可规定：当MSDU或者A-MSDU的传输时延过期时间点晚于目标时刻时，其时延到期时差大于零；当MSDU或者A-MSDU的传输时延过期时间点早于目标时刻时，其时延到期时差小于零。其中，所谓的时延过期点是指属于特定业务流的MSDU或者A-MSDU从本地MAC SAP到达MAC子层的时间点开始经过限定时延(delay bound)时长的时间点，其中，限定时延是指允许传输MSDU或者A-MSDU的最大时长，测量为MSDU或者A-MSDU的第一个MSDU从MAC SAP到达MAC子层的时间到成功传输(或重传)MSDU或者A-MSDU到目的地时间之间的时长。通过MSDU或者A-MSDU的时延到期时差可表示传输该MSDU或者A-MSDU的紧急程度，在该MSDU或者A-MSDU的生存时间(time to live，TTL)内时延到期时差越小表示传输该MSDU或者A-MSDU越紧急。
具体例如，如图6所示，假设关联于AP的站点中存在STA1、STA2、STA3三个站点，都有待上行传输的时延敏感业务数据，可通过时延到期时差来反映某个时刻其中各站点待发送的时延敏感业务TID所对应MSDU或者A-MSDU的紧急程度，如果AP可获取各站点的缓冲区状态报告信息中包含时延敏感业务TID所对应MSDU或者A-MSDU有关时延到期时差的统计信息，就可优先对待传输紧急程度比较高的MSDU或者A-MSDU进行传输。图6中STA2的时延敏感业务TID所对应MSDU或者A-MSDU的时延到期时差都小于零，说明其待传输的紧急程度较高；STA3的时延敏感业务TID所对应MSDU或者A-MSDU的时延到期时差都大于零，因此其待传输的紧急程度较低；而STA2既有时延到期时差大于零的MSDU或者A-MSDU，也有时延到期时差小于零的MSDU或者A-MSDU。图6中，各站点的时延敏感业务TID所对应MSDU或者A-MSDU的时延限值(Delay bound)可以不同。
在一些实施例中，该第一状态报告信息关联的数据为目标访问类型(access category，AC)的目标TID相应的MSDU或A-MSDU在缓冲区中的数据；和/或，该第一状态报告信息关联的数据为目标TID相应的MSDU或A-MSDU在缓冲区中的数据；其中，该目标AC为时延敏感业务的TID所在的AC，该目标TID为时延敏感业务的TID。
在一些实施例中，该第一状态报告信息具体包括以下至少之一：缓冲区中传输时延已过期的时延敏感业务的数据大小，缓冲区中传输时延在第一时刻未过期且在第二时刻过期的时延敏感业务的数据大小，缓冲区中时延到期时差小于或等于该时延到期时差限值的时延敏感业务的数据大小。
在一些实施例中，上述S210具体包括：
该第一站点在服务周期内向该第二站点发送该第一BSR；或者，该第一站点在服务周期外向该第二站点发送该第一BSR；或者，该第一站点在该第二站点调度进行时延敏感业务传输的调度周期内向该第二站点发送该第一BSR；或者，该第一站点在该第二站点两次调度进行时延敏感业务传输的调度周期之间向该第二站点发送该第一BSR。
在一些实施例中，该第一站点与该第二站点之间建立了r-TWT协议，且该服务周期为r-TWT服务周期，该第一站点为r-TWT服务周期对应的r-TWT预定站点。
在一些实施例中，上述S210具体包括：
在该第一站点通过发送携带有QoS特征元素的SCS请求建立SCS流之后，该第一站点向该第二站点发送该第一BSR；其中，该QoS特征元素包括用于满足时延敏感业务传输需求的建议参数。具体例如，该用于满足时延敏感业务传输需求的建议参数包括以下至少之一：方向，TID，最小服务间隔，最大服务间隔，最小数据速率，时延限值(Delay bound)。
也即，本申请实施例所述的时延限值(Delay bound)可以由第二站点基于第一站点发送的QoS特征元素确定并反馈给第一站点。换句话说，时延限值(Delay bound)可以由第一站点与第二站点协商确定。
在一些实施例中，上述S210具体包括：
该第一站点主动向该第二站点发送该第一BSR；或者，
该第一站点基于该第二站点的触发向该第二站点发送该第一BSR。
在一些实施例中，在该第一站点主动向该第二站点发送该第一BSR的情况下，该第一站点在传输给该第二站点的任一帧的基于待传输数据紧急程度的BSR控制子域中携带该第一BSR。此种情况下，该第一站点为non-AP STA，该第二站点为另一个non-AP STA；或者，该第一站点为AP STA， 该第二站点为另一个AP STA。
在一些实施例中，在该第一站点基于该第二站点的触发向该第二站点发送该第一BSR的情况下，该第二站点发送的触发帧为基于待传输数据紧急程度的缓冲区状态报告轮询(urgency-based buffer status report poll，U-BSRP)触发帧。此种情况下，该第一站点为non-AP STA，该第二站点为AP STA。
在一些实施例中，该第一站点按照该触发帧中指示的预设紧急程度要求或范围在传输给该第二站点的用于响应该触发帧的任一帧的BSR控制子域新变体(BSR control subfield variant)中携带该第一BSR。也即，non-AP STA按照AP STA发送的触发帧中指示的预设紧急程度要求或范围在传输给AP STA的用于响应该触发帧的任一帧的BSR控制子域新变体中携带该第一BSR。
在一些实施例中，该第一站点按照该触发帧中指示的预设紧急程度要求或范围在传输给该第二站点的用于响应该触发帧的任一帧的基于待传输数据紧急程度的BSR控制子域中携带该第一BSR。
在一些实施例中，该触发帧包括但不限于以下至少之一：用于指示预设紧急程度要求或范围的指示信息，用于指示是否触发上报缓冲区中所有时延敏感业务数据的状态报告信息的指示信息，用于指示是否基于服务周期来表示预设紧急程度要求或范围的指示信息。
具体例如，对于AP STA触发non-AP STA上报的场景，当U-BSRP触发帧指示时延到期时差限值(TimetoDelayExpire Bound)，触发相关进行时延敏感业务传输的non-AP STA上报缓冲区中的时延到期时差小于或等于TimetoDelayExpire Bound的时延敏感业务数据的大小，则相关的non-AP STA在收到U-BSRP触发帧后在传递给AP STA的用于响应该U-BSRP Trigger Frame的任何帧中传递U-BSR，并上报缓冲区中的时延到期时差小于或等于TimetoDelayExpire Bound的时延敏感业务数据的大小。当U-BSRP触发帧指示相关进行时延敏感业务传输的non-AP STA上报基于服务周期或调度周期相应时刻传输时延过期的缓冲区时延敏感业务数据的状态报告信息，则相关的non-AP STA在收到U-BSRP触发帧后在传递给AP STA的用于响应该U-BSRP Trigger Frame的任何帧中传递U-BSR，并上报基于服务周期或调度周期相应时刻传输时延过期的缓冲区时延敏感业务数据的状态报告信息。
在一些实施例中，该触发帧包括触发类型字段，其中，该触发类型字段用于指示该触发帧为基于待传输数据紧急程度的缓冲区状态报告轮询触发帧。
具体例如，该触发帧为U-BSRP触发帧，且该触发类型字段为触发类型子域(Trigger Type subfield)，如图7所示，该触发类型子域值(Trigger Type subfield value)为8用于指示触发帧变体(Trigger frame variant)为基于待传数据紧急程度的缓冲区状态报告轮询(U-BSRP)。当然，该触发类型子域也可以取其他值用于指示触发帧变体(Trigger frame variant)为基于待传数据紧急程度的缓冲区状态报告轮询(U-BSRP)，本申请实施例对此并不限定。
在一些实施例中，该触发帧包括触发关联通用信息字段；其中，该触发关联通用信息字段包括以下至少之一：是否所有(ALL indication)字段、是否基于服务周期(SP-based)字段、换算系数(Scaling factor)字段和时延到期时差限值(TimetoDelayExpire Bound)字段。该触发关联通用信息字段具体可以如图8所示。
在一些实施例中，该触发帧包括触发关联通用信息字段；其中，该触发关联通用信息字段包括以下至少之一：是否所有(ALL indication)字段、是否基于服务周期(SP-based)字段、第一时延过期指示位图(delay expire Indication Bitmap)字段。该触发关联通用信息字段具体可以如图9所示。
具体的，在该触发关联通用信息字段中，该是否所有字段用于指示是否触发该第一站点的缓冲区中所有时延敏感业务数据的状态报告信息，该是否基于服务周期字段用于指示是否基于服务周期来表示预设紧急程度要求或范围，该换算系数字段用于指示时延到期时差限值字段的单位，该时延到期时差限值字段用于指示待上报状态报告信息对应的缓冲区数据需满足的预设紧急程度要求或范围，该第一时延过期指示位图字段用于指示待上报状态报告信息对应的缓冲区数据需满足的预设紧急程度要求或范围。
在一些实施例中，该触发帧为U-BSRP触发帧，该触发关联通用信息字段为触发关联通用信息子域(Trigger Dependent Common Info subfield)。具体的，U-BSRP触发帧的EHT变体通用信息域(EHT variant Common Info field)携带触发关联通用信息子域(Trigger Dependent Common Info subfield)。
具体例如，换算系数(Scaling factor)字段可以如表1所示，时间单元(time unit，TU)例如可以是1024us。
表1
换算系数字段取值 换算系数(TU的倍数)
0 1
1 2
2 3
3 4
需要说明的是，上述表1仅仅只是示例，换算系数字段取值及对应的换算系数也可以是其他值，本申请对此并不限定。
在一些实施例中，该是否所有字段取第一值表示触发该第一站点上报的缓冲区中所有时延敏感业务数据的状态报告信息，该是否所有字段取第二值表示触发该第一站点上报的缓冲区中满足预设紧急程度要求或范围的时延敏感业务数据的状态报告信息。例如，该是否所有(ALL indication)字段取第一值为0表示触发该第一站点上报的缓冲区中所有时延敏感业务数据的状态报告信息，该是否所有(ALL indication)字段取第一值为1表示触发该第一站点上报的缓冲区中满足预设紧急程度要求或范围的时延敏感业务数据的状态报告信息。又例如，该是否所有(ALL indication)字段取第一值为1表示触发该第一站点上报的缓冲区中所有时延敏感业务数据的状态报告信息，该是否所有(ALL indication)字段取第一值为0表示触发该第一站点上报的缓冲区中满足预设紧急程度要求或范围的时延敏感业务数据的状态报告信息。
在一些实施例中，该时延到期时差限值字段表示该第一站点上报缓冲区中的时延到期时差小于或等于时延到期时差限值的时延敏感业务数据所对应的状态报告信息。
在一些实施例中，该第一时延过期指示位图字段取第一值表示当前时刻传输时延已过期的目标TID或目标AC的目标TID相应的缓冲流量；
该第一时延过期指示位图字段取第二值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前时刻，该第二时刻为以下之一：当前所分配的服务周期的结束时间点，下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；
该第一时延过期指示位图字段取第三值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前所分配的服务周期的结束时间点，该第二时刻为以下之一：下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；
该第一时延过期指示位图字段取第四值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为下一个所分配的服务周期的起始时间点，该第二时刻为下一个所分配的服务周期的结束时间点；
其中，该目标AC为时延敏感业务的TID所在的AC，该目标TID为时延敏感业务的TID。
可选地，该目标AC可以一个或多个AC，该目标TID可以包括一个或多个TID。
具体例如，该第一时延过期指示位图字段可以如表2所示，该目标AC为时延敏感业务的TID所在的AC，该目标TID为时延敏感业务的TID；该目标AC可以一个或多个AC，该目标TID可以包括一个或多个TID；该服务周期为r-TWT服务周期，该第一站点为r-TWT预定站点。
表2
Figure PCTCN2022080029-appb-000001
Figure PCTCN2022080029-appb-000002
需要说明的是，在上述表2中，第一时延过期指示位图字段占用4个比特，以及第一时延过期指示位图字段的第一值为0001，第一时延过期指示位图字段的第二值为0010，第一时延过期指示位图字段的第三值为0100，第一时延过期指示位图字段的第四值为1000。当然，第一时延过期指示位图字段的第一值至第四值所对应的取值也可以是其他值，第一时延过期指示位图字段也可以占用其他数量的比特，也即，上述表2所示的内容仅仅为一个示例，本申请对此并不限定。
在一些实施例中，该第一时延过期指示位图字段取第一值表示当前时刻传输时延已过期的目标TID或目标AC的目标TID相应的缓冲流量；
该第一时延过期指示位图字段取第二值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前时刻，该第二时刻为以下之一：当前调度周期的结束时间点，下一次调度周期的起始时间点，下一次调度周期的结束时间点；
该第一时延过期指示位图字段取第三值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前调度周期的结束时间点，该第二时刻为以下之一：下一次调度周期的起始时间点，下一次调度周期的结束时间点；
该第一时延过期指示位图字段取第四值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为下一次调度周期的起始时间点，该第二时刻为下一次调度周期的结束时间点；
其中，该目标AC为时延敏感业务的TID所在的AC，该目标TID为时延敏感业务的TID，该调度周期用于调度进行时延敏感业务的传输。
具体可以参考上述表2，在此不再赘述。
在一些实施例中，该是否基于服务周期字段取第一值表示不是基于服务周期来表示该预设紧急程度要求或范围，且采用该换算系数字段与该时延到期时差限值字段来表示该预设紧急程度要求或范围；该是否基于服务周期字段取第二值表示基于服务周期来表示该预设紧急程度要求或范围，且采用该第一时延过期指示位图字段表示该预设紧急程度要求或范围。
例如，该是否基于服务周期字段取0表示不是基于服务周期来表示该预设紧急程度要求或范围，且采用该换算系数字段与该时延到期时差限值字段来表示该预设紧急程度要求或范围；该是否基于服务周期字段取1表示基于服务周期来表示该预设紧急程度要求或范围，且采用该第一时延过期指示位图字段表示该预设紧急程度要求或范围。又例如，该是否基于服务周期字段取1表示不是基于服务周期来表示该预设紧急程度要求或范围，且采用该换算系数字段与该时延到期时差限值字段来表示该预设紧急程度要求或范围；该是否基于服务周期字段取0表示基于服务周期来表示该预设紧急程度要求或范围，且采用该第一时延过期指示位图字段表示该预设紧急程度要求或范围。
在一些实施例中，该第一站点上报的第一BSR中的第一状态报告信息包括时延敏感业务相关的缓冲区状态报告，该缓冲状态报告携带该第一站点所缓冲的符合预设紧急程度要求或范围的目标AC或目标TID的时延敏感业务MSDU或者A-MSDU相关的缓冲区数据大小信息。本申请实施例引入了两种携带该第一BSR的相关帧控制子域：一种是定义携带该第一BSR的BSR控制子域新变体(BSR control subfield variant)，对BSR控制子域所包含的相关子域内容进行重新定义，用于BSR控制子域在特定场景下的应用；另一种是定义新增的携带该第一BSR的U-BSR控制子域(U-BSR control subfield)。
在一些实施例中，该第一BSR由第一BSR控制字段承载；
其中，该第一BSR控制字段包括以下至少之一：访问类型索引位图字段、变量流标识字段、高优先级访问类型字段、第一队列字段和第二队列字段；
其中，该访问类型索引位图(ACI bitmap)字段用于指示所报告缓冲区状态的时延敏感业务的TID所在的AC，该变量流标识(Delta TID)字段与该访问类型索引位图(ACI bitmap)字段一起用于指示该第一站点正在报告的缓冲区状态的时延敏感业务的TID数量，该高优先级访问类型索引(ACI High)字段用于指示该第一队列字段所指示的BSR对应的时延敏感业务的TID所在的AC，该第一队列字段用于指示待发送至目标设备的由该高优先级访问类型字段所指示的AC中时延敏感业务的TID 所对应的满足预设紧急程度要求或范围的缓冲区流量大小，该第二队列字段用于指示待发送至目标设备的由该访问类型索引位图字段所指示的所有AC中时延敏感业务的TID所对应的满足预设紧急程度要求或范围的缓冲区流量大小；
其中，该目标设备通过包含该第一BSR控制字段的帧的接收者地址来标识，该预设紧急程度要求或范围由该第二站点发送的触发帧指示。
在一些实施例中，该第一BSR控制字段为BSR控制子域新变体(BSR control subfield variant)。
在一些实施例中，在该第一站点收到该第二站点发送的触发帧并且该触发帧指示该第一站点上报基于待传输数据紧急程度的缓冲区状态报告的情况下，该第一BSR由该第一BSR控制字段承载。也即，在该第一站点收到该第二站点发送的触发帧并且该触发帧指示该第一站点上报基于待传输数据紧急程度的缓冲区状态报告的情况下，该第一站点确定采用该BSR控制子域新变体上报该第一BSR。
换句话说，携带U-BSR信息的BSR控制子域新变体用于响应U-BSRP触发帧，当站点收到U-BSRP触发帧并且该触发帧指示该站点进行上报U-BSR，则站点采用BSR控制子域新变体上报U-BSR，而不是采用802.11ax定义的BSR控制子域。
具体例如，该第一队列字段可以是高优先级队列大小(Queue Size High)字段，该第二队列字段可以是所有队列大小(Queue Size All))字段。
具体例如，在第一BSR控制字段中，访问类型索引位图(ACI bitmap)字段用于指示所报告缓冲区状态的时延敏感业务的TID所在的AC，除了所指的AC必须是时延敏感业务TID所在的AC外，其他定义与IEEE 802.11ax中BSR控制子域(BSR control subfield)的ACI bitmap一致，在此不再赘述。
具体例如，在第一BSR控制字段中，变量流标识(Delta TID)字段与该访问类型索引位图(ACI bitmap)字段一起用于指示该第一站点正在报告的缓冲区状态的时延敏感业务的TID数量，除了所指的TID必须是时延敏感业务TID外，其他定义与IEEE 802.11ax中BSR控制子域(BSR control subfield)的Delta TID一致，在此不再赘述。
具体例如，在第一BSR控制字段中，高优先级访问类型索引(ACI High)字段用于指示该第一队列字段所指示的BSR对应的时延敏感业务的TID所在的AC，除了所指的AC必须是时延敏感业务TID所在的AC外，其他定义与IEEE 802.11ax中BSR控制子域(BSR control subfield)的ACI High一致，在此不再赘述。
在一些实施例中，该第一BSR由第二BSR控制字段承载；
其中，该第二BSR控制字段包括以下至少之一：访问类型索引位图字段、变量流标识字段、是否基于服务周期字段、第二时延过期指示位图字段、换算系数字段和缓冲区特定流量大小字段；
其中，该访问类型索引位图字段用于指示所报告缓冲区状态的时延敏感业务的TID所在的AC，该变量流标识字段与该访问类型索引位图字段一起用于指示该第一站点正在报告的缓冲区状态的时延敏感业务的TID数量，该是否基于服务周期字段用于指示是否基于服务周期来表示预设紧急程度要求或范围，该第二时延过期指示位图字段用于指示该缓冲区特定流量大小字段所指示的所有AC中时延敏感业务的TID所关联的目标缓冲区流量，该换算系数字段用于指示该缓冲区特定流量大小字段所对应的单位，该缓冲区特定流量大小字段用于指示待发送至目标设备的由该访问类型索引位图字段所指示的所有AC中时延敏感业务的TID所对应的满足预设紧急程度要求或范围的缓冲区流量大小；
其中，该目标设备通过包含该第二BSR控制字段的帧的接收者地址来标识，该预设紧急程度要求或范围由该第二时延过期指示位图字段来指示。
在一些实施例中，该第二BSR控制字段为基于待传输数据紧急程度的BSR控制子域。具体的，该第二BSR控制字段可以如图10所示。
在一些实施例中，该第二BSR控制字段可以是新增的聚合控制子域(A-Control subfield)变体，该第二BSR控制字段既可用于响应U-BSRP触发帧的U-BSR上报(即该第一站点基于该第二站点的触发向该第二站点发送该第一BSR)，也可用于非请求的U-BSR上报(即该第一站点主动向该第二站点发送该第一BSR)。
在一些实施例中，该第二时延过期指示位图字段取第一值表示该目标缓冲区流量为所有目标TID或目标AC的目标TID相应的缓冲区流量；
该第二时延过期指示位图字段取第二值表示该目标缓冲区流量为当前时刻传输时延已过期的目标TID或目标AC的目标TID相应的缓冲流量；
该第二时延过期指示位图字段取第三值表示该目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前时刻，该第二时刻为当前所分配的服务周期的结束时间点，下一个所分配的服务周期的起始时间点，下一个 所分配的服务周期的结束时间点；
该第二时延过期指示位图字段取第四值表示该目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前所分配的服务周期的结束时间点，该第二时刻为以下之一：下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；
该第二时延过期指示位图字段取第五值表示该目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为下一个所分配的服务周期的起始时间点，该第二时刻为下一个所分配的服务周期的结束时间点；
其中，该目标AC为时延敏感业务的TID所在的AC，该目标TID为时延敏感业务的TID。
具体例如，该第二时延过期指示位图字段可以如表3所示，该目标AC为时延敏感业务的TID所在的AC，该目标TID为时延敏感业务的TID；该目标AC可以一个或多个AC，该目标TID可以包括一个或多个TID；该服务周期为r-TWT服务周期，该第一站点为r-TWT预定站点。
表3
Figure PCTCN2022080029-appb-000003
需要说明的是，在上述表3中，第二时延过期指示位图字段占用4个比特，以及第二时延过期指示位图字段的第一值为0000，第二时延过期指示位图字段的第二值为0001，第二时延过期指示位图字段的第三值为0010，第二时延过期指示位图字段的第四值为0100，第二时延过期指示位图字段的第五值为1000。当然，第二时延过期指示位图字段的第一值至第五值所对应的取值也可以是其他值，第二时延过期指示位图字段也可以占用其他数量的比特，也即，上述表3所示的内容仅仅为一个示例，本申请对此并不限定。
在一些实施例中，该第二时延过期指示位图字段取第一值表示该目标缓冲区流量为所有目标TID或目标AC的目标TID相应的缓冲区流量；
该第二时延过期指示位图字段取第二值表示该目标缓冲区流量为当前时刻传输时延已过期的目标TID或目标AC的目标TID相应的缓冲流量；
该第二时延过期指示位图字段取第三值表示该目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前时刻，该第二时刻为以下之一：当前调度周期的结束时间点，下一次调度周期的起始时间点，下一次调度周期的结束时间点；
该第二时延过期指示位图字段取第四值表示该目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前调度周期的结束时间点，该第二时刻为以下之一：下一次调度周期的起始时间点，下一次调度周期的结束时间点；
该第二时延过期指示位图字段取第五值表示该目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为下一次调度周期的起始时间点，该第二时刻为下一次调度周期的结束时间点；
其中，该目标AC为时延敏感业务的TID所在的AC，该目标TID为时延敏感业务的TID，该调度周期用于调度进行时延敏感业务的传输。
具体可以参考上述表3，在此不再赘述。
具体例如，在第二BSR控制字段中，访问类型索引位图(ACI bitmap)字段用于指示所报告缓冲区状态的时延敏感业务的TID所在的AC，除了所指的AC必须是时延敏感业务TID所在的AC外，其他定义与IEEE 802.11ax中BSR控制子域(BSR control subfield)的ACI bitmap一致，在此不再赘述。
具体例如，在第二BSR控制字段中，变量流标识(Delta TID)字段与访问类型索引位图(ACI bitmap)字段一起用于指示该第一站点正在报告的缓冲区状态的时延敏感业务的TID数量，除了所指的TID必须是时延敏感业务TID外，其他定义与IEEE 802.11ax中BSR控制子域(BSR control subfield)的ACI bitmap一致，在此不再赘述。
具体例如，在第二BSR控制字段中，是否基于服务周期字段用于指示是否基于服务周期来表示预设紧急程度要求或范围。比如，对于r-TWT，是否是基于r-TWT服务周期。具体的，可以占用1比特，当取值为0时表示不是基于服务周期来表示预设紧急程度要求或范围，采用换算系数字段与时延到期时差限值字段来表示预设紧急程度要求或范围；当取值为1时表示是基于服务周期来表示预设紧急程度要求或范围，采用第二时延过期指示位图字段表示特定紧急程度要求或范围。或者，当取值为1时表示不是基于服务周期来表示预设紧急程度要求或范围，采用换算系数字段与时延到期时差限值字段来表示预设紧急程度要求或范围；当取值为0时表示是基于服务周期来表示预设紧急程度要求或范围，采用第二时延过期指示位图字段表示特定紧急程度要求或范围。
在一些实施例中，该第一BSR由第三BSR控制字段承载；
其中，该第三BSR控制字段包括以下至少之一：访问类型索引位图字段、变量流标识字段、是否基于服务周期字段、时延到期时差限值字段、时延换算系数字段和缓冲区特定流量大小字段；
其中，该访问类型索引位图字段用于指示所报告缓冲区状态的时延敏感业务的TID所在的AC，该变量流标识字段与该访问类型索引位图字段一起用于指示该第一站点正在报告的缓冲区状态的时延敏感业务的TID数量，该是否基于服务周期字段用于指示是否基于服务周期来表示预设紧急程度要求或范围，该时延换算系数字段用于指示该时延到期时差限值字段所对应的单位，该时延到期时差限值字段用于指示待上报状态报告信息对应的缓冲区数据需满足的预设紧急程度要求或范围，该缓冲区流量换算系数字段用于指示该缓冲区特定流量大小字段所对应的单位，该缓冲区特定流量大小字段用于指示待发送至目标设备的由该访问类型索引位图字段所指示的所有AC中时延敏感业务的TID所对应的满足预设紧急程度要求或范围的缓冲区流量大小；
其中，该目标设备通过包含该第三BSR控制字段的帧的接收者地址来标识，该预设紧急程度要求或范围由该时延到期时差限值字段来指示。
在一些实施例中，该第三BSR控制字段为基于待传输数据紧急程度的BSR控制子域。具体的，该第三BSR控制字段可以如图11所示。
在一些实施例中，该第三BSR控制字段可以是新增的聚合控制子域(A-Control subfield)变体，该第三BSR控制字段既可用于响应U-BSRP触发帧的U-BSR上报(即该第一站点基于该第二站点的触发向该第二站点发送该第一BSR)，也可用于非请求的U-BSR上报(即该第一站点主动向该第二站点发送该第一BSR)。
在一些实施例中，在该第三BSR控制字段中，该时延到期时差限值字段表示该第一站点上报缓冲区中的时延到期时差小于或等于时延到期时差限值的时延敏感业务数据所对应的状态报告信息。其中，该时延到期时差限值字段以TU为单位。
在一些实施例中，该时延换算系数字段可以如表4所示，TU例如可以是1024us。
表4
时延换算系数字段取值 时延换算系数(TU的倍数)
0 1
1 2
2 3
3 4
需要说明的是，上述表4仅仅只是示例，时延换算系数字段取值及对应的时延换算系数也可以是其他值，本申请对此并不限定。
具体例如，在第三BSR控制字段中，访问类型索引位图(ACI bitmap)字段用于指示所报告缓冲区状态的时延敏感业务的TID所在的AC，除了所指的AC必须是时延敏感业务TID所在的AC外，其他定义与IEEE 802.11ax中BSR控制子域(BSR control subfield)的ACI bitmap一致，在此不再赘述。
具体例如，在第三BSR控制字段中，变量流标识(Delta TID)字段与访问类型索引位图(ACI bitmap)字段一起用于指示该第一站点正在报告的缓冲区状态的时延敏感业务的TID数量，除了所指的TID必须是时延敏感业务TID外，其他定义与IEEE 802.11ax中BSR控制子域(BSR control subfield)的ACI bitmap一致，在此不再赘述。
具体例如，在第三BSR控制字段中，是否基于服务周期字段用于指示是否基于服务周期来表示预设紧急程度要求或范围。比如，对于r-TWT，是否是基于r-TWT服务周期。具体的，可以占用1比特，当取值为0时表示不是基于服务周期来表示预设紧急程度要求或范围，采用换算系数字段与时延到期时差限值字段来表示预设紧急程度要求或范围；当取值为1时表示是基于服务周期来表示预设紧急程度要求或范围，采用第二时延过期指示位图字段表示特定紧急程度要求或范围。或者，当取值为1时表示不是基于服务周期来表示预设紧急程度要求或范围，采用换算系数字段与时延到期时差限值字段来表示预设紧急程度要求或范围；当取值为0时表示是基于服务周期来表示预设紧急程度要求或范围，采用第二时延过期指示位图字段表示特定紧急程度要求或范围。
具体例如，在第三BSR控制字段中，缓冲区流量换算系数字段：以字节为单位，指示缓冲区特定流量大小(Queue Size selected)字段所对应的单位，其定义与IEEE 802.11ax中BSR控制子域(BSR control subfield)的Scaling Factor一致，在此不再赘述。
需要说明的是，IEEE 802.11定义的缓冲区状态报告(BSR)未能提供与时延需求相关的信息，对于时延敏感业务(或称低时延业务)的传输无法及时提供业务数据发送紧急程度相关的信息。针对这一问题，本申请提出基于待传数据紧急程度的缓冲区时延敏感业务数据状态报告(Urgency-based BSR，U-BSR)机制，在r-TWT服务周期或者第二站点调度进行时延敏感业务传输期间，第二站点可触发第一站点上报基于待传数据紧急程度的缓冲区中时延敏感业务数据状态报告，或者，第一站点主动上报基于待传数据紧急程度的缓冲区中时延敏感业务数据状态报告。
以下通过实施例1和实施例2详述本申请技术方案。
实施例1，r-TWT SP期间缓冲区时延敏感业务数据状态上报机制，第一站点为non-AP STA，第二站点为AP STA，且该non-AP STA为r-TWT预定站点。
在实施例1中，如图12所示，non-AP STA向AP STA发送携带QoS特征元素(QoS Characteristics element)的SCS请求，其中，QoS特征元素包含用于满足时延敏感业务传输需求的建议参数，包括方向(Direction，如上行)、流标识(TID)、最小服务间隔(Minimum Service Interval)、最大服务间隔(Maximum Service Interval)、最小数据速率(Minimum Data Rate)、时延限值(Delay Bound)等。AP STA接收到SCS请求后，如果接受该SCS请求，回复SCS请求接受应答给non-AP STA。然后，AP STA与non-AP STA之间根据SCS的协商结果建立r-TWT，并确定用于在预定的服务周期(SP)内传输的时延敏感业务的上行或下行流标识(TID)。non-AP STA在AP STA宣告的预定服务周期进行时延敏感业务传输，比如AP STA可通过发送触发帧，来指定哪些r-TWT预定站点进行上行传输，同时给各预定站点分配传输资源。
在r-TWT的服务周期期间，AP STA可触发对应服务周期的r-TWT预定站点(non-AP STA)上报基于待传数据紧急程度的缓冲区中时延敏感业务数据状态报告，或者r-TWT预定站点主动上报基于待传数据紧急程度的缓冲区中时延敏感业务数据状态报告，如图12所示。
在实施例1中，对于AP STA触发r-TWT预定站点上报(请求的U-BSR)，AP STA发送携带紧急程度要求的BSR轮询触发帧(U-BSRP Trigger frame)，non-AP STA按照U-BSRP Trigger frame中指示的紧急程度要求或范围可在传递给AP的用于响应BSRP Trigger Frame的任何帧中携带BSR控制子域新变体或U-BSR控制子域(U-BSR Control subfield)传递U-BSR信息；对于r-TWT预定站点的主动上报(非请求的U-BSR)，non-AP STA可以在传输到AP的任何帧的U-BSR Control subfield中传 递U-BSR信息，其中，U-BSR反映符合特定紧急程度范围的缓冲区状态报告。其中，U-BSR包含满足紧急程度要求或范围的缓冲区时延敏感业务数据状态报告，该状态报告或者可用基于服务周期相应时刻传输时延过期的缓冲区时延敏感业务数据的状态报告信息来表示，或者，可用基于时延到期时差(TimetoDelayExpire)限值范围的缓冲区时延敏感业务数据的状态报告信息来表示。
实施例2，基于AP触发调度场景的缓冲区时延敏感业务数据状态上报机制，第一站点为non-AP STA，第二站点为AP STA，且该non-AP STA为r-TWT预定站点。
在实施例2中，如图13所示，non-AP STA向AP STA发送携带QoS特征元素(QoS Characteristics element)的SCS请求，其中QoS特征元素包含用于满足时延敏感业务传输需求的建议参数，包括方向(Direction，如上行)、流标识(TID)、最小服务间隔(Minimum Service Interval)、最大服务间隔(Maximum Service Interval)、最小数据速率(Minimum Data Rate)、时延限值(Delay Bound)等。AP STA接收到SCS请求后，如果接受该SCS请求，回复SCS请求接受应答给non-AP STA。然后，AP STA基于建立的SCS流中的时延敏感业务传输需求，采用基于触发帧的传输方式对non-AP STA的时延敏感业务数据进行调度传输。
在AP STA进行时延敏感业务数据调度传输期间，AP STA可触发non-AP STA上报基于待传数据紧急程度的缓冲区中时延敏感业务数据状态报告，或者non-AP STA主动上报基于待传数据紧急程度的缓冲区中时延敏感业务数据状态报告，如图13所示。
在实施例2中，对于AP STA触发non-AP STA上报(请求的U-BSR)，AP STA发送携带紧急程度要求的触发帧(U-BSRP Trigger frame)，non-AP STA按照U-BSRP Trigger frame中指示的紧急程度要求或范围可在传递给AP STA的用于响应BSRP Trigger Frame的任何帧中携带BSR控制子域新变体或U-BSR控制子域(U-BSR Control subfield)传递U-BSR；对于non-AP STA的主动上报(非请求的U-BSR)，non-AP STA可以在传输到AP STA的任何帧的U-BSR Control subfield中传递U-BSR信息，其中，U-BSR反映符合特定紧急程度范围的缓冲区状态报告。其中，U-BSR包含满足紧急程度要求或范围的缓冲区时延敏感业务数据状态报告，可用基于时延到期时差(TimetoDelayExpire)限值范围的缓冲区时延敏感业务数据的状态报告信息来表示，或者可用基于调度周期相应时刻传输时延过期的缓冲区时延敏感业务数据的状态报告信息来表示。
因此，在本申请实施例中，第一站点可以通过第一BSR向第二站点发送基于待传输数据紧急程度的缓冲区状态报告信息，从而，第二站点可以基于第一站点上报的基于待传输数据紧急程度的传输需求进行UL MU资源的分配，进而满足时延敏感业务的传输需求。
上文结合图4至图13，详细描述了本申请的方法实施例，下文结合图14至图18，详细描述本申请的装置实施例，应理解，装置实施例与方法实施例相互对应，类似的描述可以参照方法实施例。
图14示出了根据本申请实施例的站点设备300的示意性框图。该站点设备300为第一站点，如图14所示，该站点设备300包括：
通信单元310，用于向第二站点发送第一缓冲区状态报告BSR；
其中，该第一BSR至少包括第一状态报告信息，该第一状态报告信息为基于待传输数据紧急程度的缓冲区状态报告信息。
在一些实施例中，该第一状态报告信息包括缓冲区中满足预设紧急程度要求或范围的时延敏感业务数据的状态报告信息。
在一些实施例中，该预设紧急程度要求或范围基于服务周期关联的传输时延过期的缓冲区中时延敏感业务数据的状态报告信息表示；或者，该预设紧急程度要求或范围基于调度周期关联的传输时延过期的缓冲区中时延敏感业务数据的状态报告信息表示，其中，该调度周期用于调度进行时延敏感业务的传输。
在一些实施例中，该第一状态报告信息具体包括以下至少之一：
缓冲区中传输时延已过期的时延敏感业务的数据大小，缓冲区中传输时延在第一时刻未过期且在第二时刻过期的时延敏感业务的数据大小。
在一些实施例中，该第二时刻晚于该第一时刻。
在一些实施例中，该第一时刻为当前时刻，且该第二时刻为以下之一：当前所分配的服务周期的结束时间点，下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；或者，
该第一时刻为当前所分配的服务周期的结束时间点，且该第二时刻为以下之一：下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；或者，
该第一时刻为下一个所分配的服务周期的起始时间点，且该第二时刻为下一个所分配的服务周期的结束时间点。
在一些实施例中，该第一时刻为当前时刻，且该第二时刻为以下之一：当前调度周期的结束时间 点，下一次调度周期的起始时间点，下一次调度周期的结束时间点；或者，
该第一时刻为当前该第二站点调度进行时延敏感业务传输的调度周期的结束时间点，且该第二时刻为以下之一：下一次调度周期的起始时间点，下一次调度周期的结束时间点；或者，
该第一时刻为下一次调度周期的起始时间点，且该第二时刻为下一次调度周期的结束时间点；
其中，该调度周期用于调度进行时延敏感业务的传输。
在一些实施例中，该预设紧急程度要求或范围基于时延到期时差限值范围的缓冲区中时延敏感业务数据的状态报告信息表示。
在一些实施例中，该第一状态报告信息具体包括缓冲区中时延到期时差小于或等于该时延到期时差限值的时延敏感业务的数据大小。
在一些实施例中，该时延到期时差限值由该第二站点配置或指示，或者，该时延到期时差限值由协议约定。
在一些实施例中，该第一状态报告信息关联的数据为目标访问类型AC的目标流标识TID相应的媒体接入控制服务数据单元MSDU或聚合媒体接入控制服务数据单元A-MSDU在缓冲区中的数据；和/或，该第一状态报告信息关联的数据为目标TID相应的MSDU或A-MSDU在缓冲区中的数据；
其中，该目标AC为时延敏感业务的TID所在的AC，该目标TID为时延敏感业务的TID。
在一些实施例中，该通信单元310具体用于：
在服务周期内向该第二站点发送该第一BSR；或者，
在服务周期外向该第二站点发送该第一BSR；或者，
在该第二站点调度进行时延敏感业务传输的调度周期内向该第二站点发送该第一BSR；或者，
在该第二站点两次调度进行时延敏感业务传输的调度周期之间向该第二站点发送该第一BSR。
在一些实施例中，该第一站点与该第二站点之间建立了受限目标唤醒时间r-TWT协议，且该服务周期为r-TWT服务周期，该第一站点为r-TWT服务周期对应的r-TWT预定站点。
在一些实施例中，该通信单元310具体用于：
在该第一站点通过发送携带有服务质量QoS特征元素的流分类服务SCS请求建立SCS流之后，向该第二站点发送该第一BSR；
其中，该QoS特征元素包括用于满足时延敏感业务传输需求的建议参数。
在一些实施例中，该用于满足时延敏感业务传输需求的建议参数包括以下至少之一：方向，TID，最小服务间隔，最大服务间隔，最小数据速率，时延限值。
在一些实施例中，该通信单元310具体用于：
主动向该第二站点发送该第一BSR；或者，
基于该第二站点的触发向该第二站点发送该第一BSR。
在一些实施例中，在该第一站点主动向该第二站点发送该第一BSR的情况下，该第一站点在传输给该第二站点的任一帧的基于待传输数据紧急程度的BSR控制子域中携带该第一BSR。
在一些实施例中，在该第一站点基于该第二站点的触发向该第二站点发送该第一BSR的情况下，该第二站点发送的触发帧为基于待传输数据紧急程度的缓冲区状态报告轮询触发帧。
在一些实施例中，该第一站点按照该触发帧中指示的预设紧急程度要求或范围在传输给该第二站点的用于响应该触发帧的任一帧的BSR控制子域新变体；或者，
该第一站点按照该触发帧中指示的预设紧急程度要求或范围在传输给该第二站点的用于响应该触发帧的任一帧的基于待传输数据紧急程度的BSR控制子域中携带该第一BSR。
在一些实施例中，该触发帧包括以下至少之一：用于指示预设紧急程度要求或范围的指示信息，用于指示是否触发上报缓冲区中所有时延敏感业务数据的状态报告信息的指示信息，用于指示是否基于服务周期来表示预设紧急程度要求或范围的指示信息。
在一些实施例中，该触发帧包括触发类型字段，其中，该触发类型字段用于指示该触发帧为基于待传输数据紧急程度的缓冲区状态报告轮询触发帧。
在一些实施例中，该触发帧包括触发关联通用信息字段；
其中，该触发关联通用信息字段包括以下至少之一：是否所有字段、是否基于服务周期字段、换算系数字段和时延到期时差限值字段；或者，该触发关联通用信息字段包括以下至少之一：是否所有字段、是否基于服务周期字段、第一时延过期指示位图字段；
其中，该是否所有字段用于指示是否触发该第一站点的缓冲区中所有时延敏感业务数据的状态报告信息，该是否基于服务周期字段用于指示是否基于服务周期来表示预设紧急程度要求或范围，该换算系数字段用于指示时延到期时差限值字段的单位，该时延到期时差限值字段用于指示待上报状态报告信息对应的缓冲区数据需满足的预设紧急程度要求或范围，该第一时延过期指示位图字段用于指示 待上报状态报告信息对应的缓冲区数据需满足的预设紧急程度要求或范围。
在一些实施例中，该是否所有字段取第一值表示触发该第一站点上报的缓冲区中所有时延敏感业务数据的状态报告信息，该是否所有字段取第二值表示触发该第一站点上报的缓冲区中满足预设紧急程度要求或范围的时延敏感业务数据的状态报告信息。
在一些实施例中，该时延到期时差限值字段表示该第一站点上报缓冲区中的时延到期时差小于或等于时延到期时差限值的时延敏感业务数据所对应的状态报告信息。
在一些实施例中，该第一时延过期指示位图字段取第一值表示当前时刻传输时延已过期的目标TID或目标AC的目标TID相应的缓冲流量；
该第一时延过期指示位图字段取第二值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前时刻，该第二时刻为以下之一：当前所分配的服务周期的结束时间点，下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；
该第一时延过期指示位图字段取第三值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前所分配的服务周期的结束时间点，该第二时刻为以下之一：下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；
该第一时延过期指示位图字段取第四值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为下一个所分配的服务周期的起始时间点，该第二时刻为下一个所分配的服务周期的结束时间点；
其中，该目标AC为时延敏感业务的TID所在的AC，该目标TID为时延敏感业务的TID。
在一些实施例中，该第一时延过期指示位图字段取第一值表示当前时刻传输时延已过期的目标TID或目标AC的目标TID相应的缓冲流量；
该第一时延过期指示位图字段取第二值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前时刻，该第二时刻为以下之一：当前调度周期的结束时间点，下一次调度周期的起始时间点，下一次调度周期的结束时间点；
该第一时延过期指示位图字段取第三值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前调度周期的结束时间点，该第二时刻为以下之一：下一次调度周期的起始时间点，下一次调度周期的结束时间点；
该第一时延过期指示位图字段取第四值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为下一次调度周期的起始时间点，该第二时刻为下一次调度周期的结束时间点；
其中，该目标AC为时延敏感业务的TID所在的AC，该目标TID为时延敏感业务的TID，该调度周期用于调度进行时延敏感业务的传输。
在一些实施例中，该是否基于服务周期字段取第一值表示不是基于服务周期来表示该预设紧急程度要求或范围，且采用该换算系数字段与该时延到期时差限值字段来表示该预设紧急程度要求或范围；该是否基于服务周期字段取第二值表示基于服务周期来表示该预设紧急程度要求或范围，且采用该第一时延过期指示位图字段表示该预设紧急程度要求或范围。
在一些实施例中，该第一BSR由第一BSR控制字段承载；
其中，该第一BSR控制字段包括以下至少之一：访问类型索引位图字段、变量流标识字段、高优先级访问类型索引字段、第一队列字段和第二队列字段；
其中，该访问类型索引位图字段用于指示所报告缓冲区状态的时延敏感业务的TID所在的AC，该变量流标识字段与该访问类型索引位图字段一起用于指示该第一站点正在报告的缓冲区状态的时延敏感业务的TID数量，该高优先级访问类型索引字段用于指示该第一队列字段所指示的BSR对应的时延敏感业务的TID所在的AC，该第一队列字段用于指示待发送至目标设备的由该高优先级访问类型字段所指示的AC中时延敏感业务的TID所对应的满足预设紧急程度要求或范围的缓冲区流量大小，该第二队列字段用于指示待发送至目标设备的由该访问类型索引位图字段所指示的所有AC中时延敏感业务的TID所对应的满足预设紧急程度要求或范围的缓冲区流量大小；
其中，该目标设备通过包含该第一BSR控制字段的帧的接收者地址来标识，该预设紧急程度要求或范围由该第二站点发送的触发帧指示。
在一些实施例中，该第一BSR控制字段为BSR控制子域新变体。
在一些实施例中，该站点设备300还包括：处理单元320；
在该第一站点收到该第二站点发送的触发帧并且该触发帧指示该第一站点上报基于待传输数据 紧急程度的缓冲区状态报告的情况下，该处理单元320用于确定采用该BSR控制子域新变体上报该第一BSR。
在一些实施例中，该第一BSR由第二BSR控制字段承载；
其中，该第二BSR控制字段包括以下至少之一：访问类型索引位图字段、变量流标识字段、是否基于服务周期字段、第二时延过期指示位图字段、换算系数字段和缓冲区特定流量大小字段；
其中，该访问类型索引位图字段用于指示所报告缓冲区状态的时延敏感业务的TID所在的AC，该变量流标识字段与该访问类型索引位图字段一起用于指示该第一站点正在报告的缓冲区状态的时延敏感业务的TID数量，该是否基于服务周期字段用于指示是否基于服务周期来表示预设紧急程度要求或范围，该第二时延过期指示位图字段用于指示该缓冲区特定流量大小字段所指示的所有AC中时延敏感业务的TID所关联的目标缓冲区流量，该换算系数字段用于指示该缓冲区特定流量大小字段所对应的单位，该缓冲区特定流量大小字段用于指示待发送至目标设备的由该访问类型索引位图字段所指示的所有AC中时延敏感业务的TID所对应的满足预设紧急程度要求或范围的缓冲区流量大小；
其中，该目标设备通过包含该第二BSR控制字段的帧的接收者地址来标识，该预设紧急程度要求或范围由该第二时延过期指示位图字段来指示。
在一些实施例中，该第二时延过期指示位图字段取第一值表示该目标缓冲区流量为所有目标TID或目标AC的目标TID相应的缓冲区流量；
该第二时延过期指示位图字段取第二值表示该目标缓冲区流量为当前时刻传输时延已过期的目标TID或目标AC的目标TID相应的缓冲流量；
该第二时延过期指示位图字段取第三值表示该目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前时刻，该第二时刻为当前所分配的服务周期的结束时间点，下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；
该第二时延过期指示位图字段取第四值表示该目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前所分配的服务周期的结束时间点，该第二时刻为以下之一：下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；
该第二时延过期指示位图字段取第五值表示该目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为下一个所分配的服务周期的起始时间点，该第二时刻为下一个所分配的服务周期的结束时间点；
其中，该目标AC为时延敏感业务的TID所在的AC，该目标TID为时延敏感业务的TID。
在一些实施例中，该第二时延过期指示位图字段取第一值表示该目标缓冲区流量为所有目标TID或目标AC的目标TID相应的缓冲区流量；
该第二时延过期指示位图字段取第二值表示该目标缓冲区流量为当前时刻传输时延已过期的目标TID或目标AC的目标TID相应的缓冲流量；
该第二时延过期指示位图字段取第三值表示该目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前时刻，该第二时刻为以下之一：当前调度周期的结束时间点，下一次调度周期的起始时间点，下一次调度周期的结束时间点；
该第二时延过期指示位图字段取第四值表示该目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前调度周期的结束时间点，该第二时刻为以下之一：下一次调度周期的起始时间点，下一次调度周期的结束时间点；
该第二时延过期指示位图字段取第五值表示该目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为下一次调度周期的起始时间点，该第二时刻为下一次调度周期的结束时间点；
其中，该目标AC为时延敏感业务的TID所在的AC，该目标TID为时延敏感业务的TID，该调度周期用于调度进行时延敏感业务的传输。
在一些实施例中，该第二BSR控制字段为基于待传输数据紧急程度的BSR控制子域。
在一些实施例中，该第一BSR由第三BSR控制字段承载；
其中，该第三BSR控制字段包括以下至少之一：访问类型索引位图字段、变量流标识字段、是否基于服务周期字段、时延到期时差限值字段、时延换算系数字段和缓冲区特定流量大小字段；
其中，该访问类型索引位图字段用于指示所报告缓冲区状态的时延敏感业务的TID所在的AC， 该变量流标识字段与该访问类型索引位图字段一起用于指示该第一站点正在报告的缓冲区状态的时延敏感业务的TID数量，该是否基于服务周期字段用于指示是否基于服务周期来表示预设紧急程度要求或范围，该时延换算系数字段用于指示该时延到期时差限值字段所对应的单位，该时延到期时差限值字段用于指示待上报状态报告信息对应的缓冲区数据需满足的预设紧急程度要求或范围，该缓冲区流量换算系数字段用于指示该缓冲区特定流量大小字段所对应的单位，该缓冲区特定流量大小字段用于指示待发送至目标设备的由该访问类型索引位图字段所指示的所有AC中时延敏感业务的TID所对应的满足预设紧急程度要求或范围的缓冲区流量大小；
其中，该目标设备通过包含该第三BSR控制字段的帧的接收者地址来标识，该预设紧急程度要求或范围由该时延到期时差限值字段来指示。
在一些实施例中，该时延到期时差限值字段表示该第一站点上报缓冲区中的时延到期时差小于或等于时延到期时差限值的时延敏感业务数据所对应的状态报告信息。
在一些实施例中，该第三BSR控制字段为基于待传输数据紧急程度的BSR控制子域。
在一些实施例中，该服务周期为受限目标唤醒时间r-TWT的服务周期，且该第一站点为该r-TWT的预定站点。
在一些实施例中，该时延到期时差为时延敏感业务数据从当前时刻到该时延敏感业务数据的传输时延过期时间点之间的时间差值，或者，该时延到期时差为时延敏感业务数据从目标时刻到该时延敏感业务数据的传输时延过期时间点之间的时间差值。
在一些实施例中，传输时延过期的时间点是指属于时延敏感业务流的MSDU或者A-MSDU从本地媒体接入控制MAC服务访问点到达MAC子层的时间点开始经过限定时延时长的时间点；
其中，该限定时延为允许传输MSDU或者A-MSDU的最大时长。
在一些实施例中，传输时延已过期是指待传输的MSDU或者A-MSDU针对当前时刻的时延到期时差小于或等于零，或者，传输时延已过期是指待传输的MSDU或者A-MSDU针对当前时刻的时延到期时差小于时延过期偏差阈值；和/或，
传输时延过期是指待传输的MSDU或者A-MSDU针对目标时刻的时延到期时差小于或等于零，或者，传输时延过期是指待传输的MSDU或者A-MSDU针对目标时刻的时延到期时差小于时延过期偏差阈值；和/或，
传输时延未过期是指待传输的MSDU或者A-MSDU针对目标时刻的时延到期时差大于零，或者，传输时延未过期是指待传输的MSDU或者A-MSDU针对目标时刻的时延到期时差大于或等于时延过期偏差阈值。
在一些实施例中，该时延过期偏差阈值为MSDU或A-MSDU从开始传输时间点到确认成功传输时间点之间的时间间隔。
在一些实施例中，该第一站点为非接入点站点non-AP STA，该第二站点为接入点站点AP STA。
在一些实施例中，该第一站点为non-AP STA，该第二站点为另一个non-AP STA；或者，
该第一站点为AP STA，该第二站点为另一个AP STA。
在一些实施例中，上述通信单元可以是通信接口或收发器，或者是通信芯片或者片上系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解，根据本申请实施例的站点设备300可对应于本申请方法实施例中的第一站点，并且站点设备300中的各个单元的上述和其它操作和/或功能分别为了实现图4所示方法200中第一站点的相应流程，为了简洁，在此不再赘述。
图15示出了根据本申请实施例的站点设备400的示意性框图。该站点设备400为第二站点，如图15所示，该站点设备400包括：
通信单元410，用于接收第一站点发送的第一缓冲区状态报告BSR；
其中，该第一BSR至少包括第一状态报告信息，该第一状态报告信息为基于待传输数据紧急程度的缓冲区状态报告信息。
在一些实施例中，该第一状态报告信息包括缓冲区中满足预设紧急程度要求或范围的时延敏感业务数据的状态报告信息。
在一些实施例中，该预设紧急程度要求或范围基于服务周期关联的传输时延过期的缓冲区中时延敏感业务数据的状态报告信息表示；或者，该预设紧急程度要求或范围基于调度周期关联的传输时延过期的缓冲区中时延敏感业务数据的状态报告信息表示，其中，该调度周期用于调度进行时延敏感业务的传输。
在一些实施例中，该第一状态报告信息具体包括以下至少之一：
缓冲区中传输时延已过期的时延敏感业务的数据大小，缓冲区中传输时延在第一时刻未过期且在 第二时刻过期的时延敏感业务的数据大小。
在一些实施例中，该第二时刻晚于该第一时刻。
在一些实施例中，该第一时刻为当前时刻，且该第二时刻为以下之一：当前所分配的服务周期的结束时间点，下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；或者，
该第一时刻为当前所分配的服务周期的结束时间点，且该第二时刻为以下之一：下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；或者，
该第一时刻为下一个所分配的服务周期的起始时间点，且该第二时刻为下一个所分配的服务周期的结束时间点。
在一些实施例中，该第一时刻为当前时刻，且该第二时刻为以下之一：当前调度周期的结束时间点，下一次调度周期的起始时间点，下一次调度周期的结束时间点；或者，
该第一时刻为当前调度周期的结束时间点，且该第二时刻为以下之一：下一次调度周期的起始时间点，下一次调度周期的结束时间点；或者，
该第一时刻为下一次调度周期的起始时间点，且该第二时刻为下一次调度周期的结束时间点；
其中，该调度周期用于调度进行时延敏感业务的传输。
在一些实施例中，该预设紧急程度要求或范围基于时延到期时差限值范围的缓冲区中时延敏感业务数据的状态报告信息表示。
在一些实施例中，该第一状态报告信息具体包括缓冲区中时延到期时差小于或等于该时延到期时差限值的时延敏感业务的数据大小。
在一些实施例中，该时延到期时差限值由该第二站点配置或指示，或者，该时延到期时差限值由协议约定。
在一些实施例中，该第一状态报告信息关联的数据为目标访问类型AC的目标流标识TID相应的媒体接入控制服务数据单元MSDU或聚合媒体接入控制服务数据单元A-MSDU在缓冲区中的数据；和/或，该第一状态报告信息关联的数据为目标TID相应的MSDU或A-MSDU在缓冲区中的数据；
其中，该目标AC为时延敏感业务的TID所在的AC，该目标TID为时延敏感业务的TID。
在一些实施例中，该通信单元410具体用于：
接收该第一站点在服务周期内发送的该第一BSR；或者，
接收该第一站点在服务周期外发送的该第一BSR；或者，
接收该第一站点在该第二站点调度进行时延敏感业务传输的调度周期内发送的该第一BSR；或者，
接收该第一站点在该第二站点两次调度进行时延敏感业务传输的调度周期之间发送的该第一BSR。
在一些实施例中，该第一站点与该第二站点之间建立了受限目标唤醒时间r-TWT协议，且该服务周期为r-TWT服务周期，该第一站点为r-TWT服务周期对应的r-TWT预定站点。
在一些实施例中，该通信单元410具体用于：
在该第一站点通过发送携带有服务质量QoS特征元素的流分类服务SCS请求建立SCS流之后，接收该第一站点发送的该第一BSR；
其中，该QoS特征元素包括用于满足时延敏感业务传输需求的建议参数。
在一些实施例中，该用于满足时延敏感业务传输需求的建议参数包括以下至少之一：方向，TID，最小服务间隔，最大服务间隔，最小数据速率，时延限值。
在一些实施例中，该通信单元410具体用于：
接收该第一站点主动发送的该第一BSR；或者，
接收该第一站点基于该第二站点的触发发送的该第一BSR。
在一些实施例中，在该第一站点主动向该第二站点发送该第一BSR的情况下，该第一站点在传输给该第二站点的任一帧的基于待传输数据紧急程度的BSR控制子域中携带该第一BSR。
在一些实施例中，在该第一站点基于该第二站点的触发向该第二站点发送该第一BSR的情况下，该第二站点发送的触发帧为基于待传输数据紧急程度的缓冲区状态报告轮询触发帧。
在一些实施例中，该第一站点按照该触发帧中指示的预设紧急程度要求或范围在传输给该第二站点的用于响应该触发帧的任一帧的BSR控制子域新变体；或者，
该第一站点按照该触发帧中指示的预设紧急程度要求或范围在传输给该第二站点的用于响应该触发帧的任一帧的基于待传输数据紧急程度的BSR控制子域中携带该第一BSR。
在一些实施例中，该触发帧包括以下至少之一：用于指示预设紧急程度要求或范围的指示信息，用于指示是否触发上报缓冲区中所有时延敏感业务数据的状态报告信息的指示信息，用于指示是否基 于服务周期来表示预设紧急程度要求或范围的指示信息。
在一些实施例中，该触发帧包括触发类型字段，其中，该触发类型字段用于指示该触发帧为基于待传输数据紧急程度的缓冲区状态报告轮询触发帧。
在一些实施例中，该触发帧包括触发关联通用信息字段；
其中，该触发关联通用信息字段包括以下至少之一：是否所有字段、是否基于服务周期字段、换算系数字段和时延到期时差限值字段；或者，该触发关联通用信息字段包括以下至少之一：是否所有字段、是否基于服务周期字段、第一时延过期指示位图字段；
其中，该是否所有字段用于指示是否触发该第一站点的缓冲区中所有时延敏感业务数据的状态报告信息，该是否基于服务周期字段用于指示是否基于服务周期来表示预设紧急程度要求或范围，该换算系数字段用于指示时延到期时差限值字段的单位，该时延到期时差限值字段用于指示待上报状态报告信息对应的缓冲区数据需满足的预设紧急程度要求或范围，该第一时延过期指示位图字段用于指示待上报状态报告信息对应的缓冲区数据需满足的预设紧急程度要求或范围。
在一些实施例中，该是否所有字段取第一值表示触发该第一站点上报的缓冲区中所有时延敏感业务数据的状态报告信息，该是否所有字段取第二值表示触发该第一站点上报的缓冲区中满足预设紧急程度要求或范围的时延敏感业务数据的状态报告信息。
在一些实施例中，该时延到期时差限值字段表示该第一站点上报缓冲区中的时延到期时差小于或等于时延到期时差限值的时延敏感业务数据所对应的状态报告信息。
在一些实施例中，该第一时延过期指示位图字段取第一值表示当前时刻传输时延已过期的目标TID或目标AC的目标TID相应的缓冲流量；
该第一时延过期指示位图字段取第二值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前时刻，该第二时刻为以下之一：当前所分配的服务周期的结束时间点，下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；
该第一时延过期指示位图字段取第三值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前所分配的服务周期的结束时间点，该第二时刻为以下之一：下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；
该第一时延过期指示位图字段取第四值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为下一个所分配的服务周期的起始时间点，该第二时刻为下一个所分配的服务周期的结束时间点；
其中，该目标AC为时延敏感业务的TID所在的AC，该目标TID为时延敏感业务的TID。
在一些实施例中，该第一时延过期指示位图字段取第一值表示当前时刻传输时延已过期的目标TID或目标AC的目标TID相应的缓冲流量；
该第一时延过期指示位图字段取第二值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前时刻，该第二时刻为以下之一：当前调度周期的结束时间点，下一次调度周期的起始时间点，下一次调度周期的结束时间点；
该第一时延过期指示位图字段取第三值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前调度周期的结束时间点，该第二时刻为以下之一：下一次调度周期的起始时间点，下一次调度周期的结束时间点；
该第一时延过期指示位图字段取第四值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为下一次调度周期的起始时间点，该第二时刻为下一次调度周期的结束时间点；
其中，该目标AC为时延敏感业务的TID所在的AC，该目标TID为时延敏感业务的TID，该调度周期用于调度进行时延敏感业务的传输。
在一些实施例中，该是否基于服务周期字段取第一值表示不是基于服务周期来表示该预设紧急程度要求或范围，且采用该换算系数字段与该时延到期时差限值字段来表示该预设紧急程度要求或范围；
该是否基于服务周期字段取第二值表示基于服务周期来表示该预设紧急程度要求或范围，且采用该第一时延过期指示位图字段表示该预设紧急程度要求或范围。
在一些实施例中，该第一BSR由第一BSR控制字段承载；
其中，该第一BSR控制字段包括以下至少之一：访问类型索引位图字段、变量流标识字段、高优先级访问类型索引字段、第一队列字段和第二队列字段；
其中，该访问类型索引位图字段用于指示所报告缓冲区状态的时延敏感业务的TID所在的AC，该变量流标识字段与该访问类型索引位图字段一起用于指示该第一站点正在报告的缓冲区状态的时延敏感业务的TID数量，该高优先级访问类型索引字段用于指示该第一队列字段所指示的BSR对应的时延敏感业务的TID所在的AC，该第一队列字段用于指示待发送至目标设备的由该高优先级访问类型字段所指示的AC中时延敏感业务的TID所对应的满足预设紧急程度要求或范围的缓冲区流量大小，该第二队列字段用于指示待发送至目标设备的由该访问类型索引位图字段所指示的所有AC中时延敏感业务的TID所对应的满足预设紧急程度要求或范围的缓冲区流量大小；
其中，该目标设备通过包含该第一BSR控制字段的帧的接收者地址来标识，该预设紧急程度要求或范围由该第二站点发送的触发帧指示。
在一些实施例中，该第一BSR控制字段为BSR控制子域新变体。
在一些实施例中，在该第一站点收到该第二站点发送的触发帧并且该触发帧指示该第一站点上报基于待传输数据紧急程度的缓冲区状态报告的情况下，该第一站点采用该BSR控制子域新变体上报该第一BSR。
在一些实施例中，该第一BSR由第二BSR控制字段承载；
其中，该第二BSR控制字段包括以下至少之一：访问类型索引位图字段、变量流标识字段、是否基于服务周期字段、第二时延过期指示位图字段、换算系数字段和缓冲区特定流量大小字段；
其中，该访问类型索引位图字段用于指示所报告缓冲区状态的时延敏感业务的TID所在的AC，该变量流标识字段与该访问类型索引位图字段一起用于指示该第一站点正在报告的缓冲区状态的时延敏感业务的TID数量，该是否基于服务周期字段用于指示是否基于服务周期来表示预设紧急程度要求或范围，该第二时延过期指示位图字段用于指示该缓冲区特定流量大小字段所指示的所有AC中时延敏感业务的TID所关联的目标缓冲区流量，该换算系数字段用于指示该缓冲区特定流量大小字段所对应的单位，该缓冲区特定流量大小字段用于指示待发送至目标设备的由该访问类型索引位图字段所指示的所有AC中时延敏感业务的TID所对应的满足预设紧急程度要求或范围的缓冲区流量大小；
其中，该目标设备通过包含该第二BSR控制字段的帧的接收者地址来标识，该预设紧急程度要求或范围由该第二时延过期指示位图字段来指示。
在一些实施例中，该第二时延过期指示位图字段取第一值表示该目标缓冲区流量为所有目标TID或目标AC的目标TID相应的缓冲区流量；
该第二时延过期指示位图字段取第二值表示该目标缓冲区流量为当前时刻传输时延已过期的目标TID或目标AC的目标TID相应的缓冲流量；
该第二时延过期指示位图字段取第三值表示该目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前时刻，该第二时刻为当前所分配的服务周期的结束时间点，下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；
该第二时延过期指示位图字段取第四值表示该目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前所分配的服务周期的结束时间点，该第二时刻为以下之一：下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；
该第二时延过期指示位图字段取第五值表示该目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为下一个所分配的服务周期的起始时间点，该第二时刻为下一个所分配的服务周期的结束时间点；
其中，该目标AC为时延敏感业务的TID所在的AC，该目标TID为时延敏感业务的TID。
在一些实施例中，该第二时延过期指示位图字段取第一值表示该目标缓冲区流量为所有目标TID或目标AC的目标TID相应的缓冲区流量；
该第二时延过期指示位图字段取第二值表示该目标缓冲区流量为当前时刻传输时延已过期的目标TID或目标AC的目标TID相应的缓冲流量；
该第二时延过期指示位图字段取第三值表示该目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前时刻，该第二时刻为以下之一：当前调度周期的结束时间点，下一次调度周期的起始时间点，下一次调度周期的结束时间点；
该第二时延过期指示位图字段取第四值表示该目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为当前调度周期的结束时间点，该第二时刻为以下之一：下一次调度周期的起始时间点，下一次调度周期的结束时 间点；
该第二时延过期指示位图字段取第五值表示该目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，该第一时刻为下一次调度周期的起始时间点，该第二时刻为下一次调度周期的结束时间点；
其中，该目标AC为时延敏感业务的TID所在的AC，该目标TID为时延敏感业务的TID，该调度周期用于调度进行时延敏感业务的传输。
在一些实施例中，该第二BSR控制字段为基于待传输数据紧急程度的BSR控制子域。
在一些实施例中，该第一BSR由第三BSR控制字段承载；
其中，该第三BSR控制字段包括以下至少之一：访问类型索引位图字段、变量流标识字段、是否基于服务周期字段、时延到期时差限值字段、时延换算系数字段和缓冲区特定流量大小字段；
其中，该访问类型索引位图字段用于指示所报告缓冲区状态的时延敏感业务的TID所在的AC，该变量流标识字段与该访问类型索引位图字段一起用于指示该第一站点正在报告的缓冲区状态的时延敏感业务的TID数量，该是否基于服务周期字段用于指示是否基于服务周期来表示预设紧急程度要求或范围，该时延换算系数字段用于指示该时延到期时差限值字段所对应的单位，该时延到期时差限值字段用于指示待上报状态报告信息对应的缓冲区数据需满足的预设紧急程度要求或范围，该缓冲区流量换算系数字段用于指示该缓冲区特定流量大小字段所对应的单位，该缓冲区特定流量大小字段用于指示待发送至目标设备的由该访问类型索引位图字段所指示的所有AC中时延敏感业务的TID所对应的满足预设紧急程度要求或范围的缓冲区流量大小；
其中，该目标设备通过包含该第三BSR控制字段的帧的接收者地址来标识，该预设紧急程度要求或范围由该时延到期时差限值字段来指示。
在一些实施例中，该时延到期时差限值字段表示该第一站点上报缓冲区中的时延到期时差小于或等于时延到期时差限值的时延敏感业务数据所对应的状态报告信息。
在一些实施例中，该第三BSR控制字段为基于待传输数据紧急程度的BSR控制子域。
在一些实施例中，该服务周期为受限目标唤醒时间r-TWT的服务周期，且该第一站点为该r-TWT的预定站点。
在一些实施例中，该时延到期时差为时延敏感业务数据从当前时刻到该时延敏感业务数据的传输时延过期时间点之间的时间差值，或者，该时延到期时差为时延敏感业务数据从目标时刻到该时延敏感业务数据的传输时延过期时间点之间的时间差值。
在一些实施例中，传输时延过期的时间点是指属于时延敏感业务流的MSDU或者A-MSDU从本地媒体接入控制MAC服务访问点到达MAC子层的时间点开始经过限定时延时长的时间点；
其中，该限定时延为允许传输MSDU或者A-MSDU的最大时长。
在一些实施例中，传输时延已过期是指待传输的MSDU或者A-MSDU针对当前时刻的时延到期时差小于或等于零，或者，传输时延已过期是指待传输的MSDU或者A-MSDU针对当前时刻的时延到期时差小于时延过期偏差阈值；和/或，
传输时延过期是指待传输的MSDU或者A-MSDU针对目标时刻的时延到期时差小于或等于零，或者，传输时延过期是指待传输的MSDU或者A-MSDU针对目标时刻的时延到期时差小于时延过期偏差阈值；和/或，
传输时延未过期是指待传输的MSDU或者A-MSDU针对目标时刻的时延到期时差大于零，或者，传输时延未过期是指待传输的MSDU或者A-MSDU针对目标时刻的时延到期时差大于或等于时延过期偏差阈值。
在一些实施例中，该时延过期偏差阈值为MSDU或A-MSDU从开始传输时间点到确认成功传输时间点之间的时间间隔。
在一些实施例中，该第一站点为非接入点站点non-AP STA，该第二站点为接入点站点AP STA。
在一些实施例中，该第一站点为non-AP STA，该第二站点为另一个non-AP STA；或者，
该第一站点为AP STA，该第二站点为另一个AP STA。
在一些实施例中，上述通信单元可以是通信接口或收发器，或者是通信芯片或者片上系统的输入输出接口。
应理解，根据本申请实施例的站点设备400可对应于本申请方法实施例中的第二站点，并且站点设备400中的各个单元的上述和其它操作和/或功能分别为了实现图4所示方法200中第二站点的相应流程，为了简洁，在此不再赘述。
图16是本申请实施例提供的一种通信设备500示意性结构图。图16所示的通信设备500包括处理器510，处理器510可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
在一些实施例中，如图16所示，通信设备500还可以包括存储器520。其中，处理器510可以从存储器520中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器520可以是独立于处理器510的一个单独的器件，也可以集成在处理器510中。
在一些实施例中，如图16所示，通信设备500还可以包括收发器530，处理器510可以控制该收发器530与其他设备进行通信，具体地，可以向其他设备发送信息或数据，或接收其他设备发送的信息或数据。
其中，收发器530可以包括发射机和接收机。收发器530还可以进一步包括天线，天线的数量可以为一个或多个。
在一些实施例中，该通信设备500具体可为本申请实施例的站点设备，并且该通信设备500可以实现本申请实施例的各个方法中由第一站点实现的相应流程，为了简洁，在此不再赘述。
在一些实施例中，该通信设备500具体可为本申请实施例的站点设备，并且该通信设备500可以实现本申请实施例的各个方法中由第二站点实现的相应流程，为了简洁，在此不再赘述。
图17是本申请实施例的装置的示意性结构图。图17所示的装置600包括处理器610，处理器610可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
在一些实施例中，如图17所示，装置600还可以包括存储器620。其中，处理器610可以从存储器620中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器620可以是独立于处理器610的一个单独的器件，也可以集成在处理器610中。
在一些实施例中，该装置600还可以包括输入接口630。其中，处理器610可以控制该输入接口630与其他设备或芯片进行通信，具体地，可以获取其他设备或芯片发送的信息或数据。
在一些实施例中，该装置600还可以包括输出接口640。其中，处理器610可以控制该输出接口640与其他设备或芯片进行通信，具体地，可以向其他设备或芯片输出信息或数据。
在一些实施例中，该装置可应用于本申请实施例中的站点设备，并且该装置可以实现本申请实施例的各个方法中由第一站点实现的相应流程，为了简洁，在此不再赘述。
在一些实施例中，该装置可应用于本申请实施例中的站点设备，并且该装置可以实现本申请实施例的各个方法中由第二站点实现的相应流程，为了简洁，在此不再赘述。
在一些实施例中，本申请实施例提到的装置也可以是芯片。例如可以是系统级芯片，系统芯片，芯片系统或片上系统芯片等。
图18是本申请实施例提供的一种通信系统700的示意性框图。如图18所示，该通信系统700包括第一站点710和第二站点720。
其中，该第一站点710可以用于实现上述方法中由第一站点实现的相应的功能，以及该第二站点720可以用于实现上述方法中由第二站点实现的相应的功能，为了简洁，在此不再赘述。
应理解，本申请实施例的处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解，上述存储器为示例性但不是限制性说明，例如，本申请实施例中的存储器还可以是静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synch link DRAM，SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)等等。也就是说，本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质，用于存储计算机程序。
在一些实施例中，该计算机可读存储介质可应用于本申请实施例中的站点设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由第一站点实现的相应流程，为了简洁，在此不再赘述。
在一些实施例中，该计算机可读存储介质可应用于本申请实施例中的站点设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由第二站点实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序产品，包括计算机程序指令。
在一些实施例中，该计算机程序产品可应用于本申请实施例中的站点设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由第一站点实现的相应流程，为了简洁，在此不再赘述。
在一些实施例中，该计算机程序产品可应用于本申请实施例中的站点设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由第二站点实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序。
在一些实施例中，该计算机程序可应用于本申请实施例中的站点设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由第一站点实现的相应流程，为了简洁，在此不再赘述。
在一些实施例中，该计算机程序可应用于本申请实施例中的站点设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由第二站点实现的相应流程，为了简洁，在此不再赘述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。针对这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。

Claims (100)

  1. 一种无线通信的方法，其特征在于，包括：
    第一站点向第二站点发送第一缓冲区状态报告BSR；
    其中，所述第一BSR至少包括第一状态报告信息，所述第一状态报告信息为基于待传输数据紧急程度的缓冲区状态报告信息。
  2. 如权利要求1所述的方法，其特征在于，所述第一状态报告信息包括缓冲区中满足预设紧急程度要求或范围的时延敏感业务数据的状态报告信息。
  3. 如权利要求2所述的方法，其特征在于，
    所述预设紧急程度要求或范围基于服务周期内关联的传输时延过期的缓冲区中时延敏感业务数据的状态报告信息表示；或者，
    所述预设紧急程度要求或范围基于调度周期内关联的传输时延过期的缓冲区中时延敏感业务数据的状态报告信息表示，其中，所述调度周期用于调度进行时延敏感业务的传输。
  4. 如权利要求3所述的方法，其特征在于，所述第一状态报告信息具体包括以下至少之一：
    缓冲区中传输时延已过期的时延敏感业务的数据大小，缓冲区中传输时延在第一时刻未过期且在第二时刻过期的时延敏感业务的数据大小。
  5. 如权利要求4所述的方法，其特征在于，所述第二时刻晚于所述第一时刻。
  6. 如权利要求5所述的方法，其特征在于，
    所述第一时刻为当前时刻，且所述第二时刻为以下之一：当前所分配的服务周期的结束时间点，下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；或者，
    所述第一时刻为当前所分配的服务周期的结束时间点，且所述第二时刻为以下之一：下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；或者，
    所述第一时刻为下一个所分配的服务周期的起始时间点，且所述第二时刻为下一个所分配的服务周期的结束时间点。
  7. 如权利要求5所述的方法，其特征在于，
    所述第一时刻为当前时刻，且所述第二时刻为以下之一：当前调度周期的结束时间点，下一次调度周期的起始时间点，下一次调度周期的结束时间点；或者，
    所述第一时刻为当前调度周期的结束时间点，且所述第二时刻为以下之一：下一次调度周期的起始时间点，下一次调度周期的结束时间点；或者，
    所述第一时刻为下一次调度周期的起始时间点，所述第二时刻为下一次调度周期的结束时间点；
    其中，所述调度周期用于调度进行时延敏感业务的传输。
  8. 如权利要求2所述的方法，其特征在于，所述预设紧急程度要求或范围基于时延到期时差限值范围的缓冲区中时延敏感业务数据的状态报告信息表示。
  9. 如权利要求8所述的方法，其特征在于，所述第一状态报告信息具体包括缓冲区中时延到期时差小于或等于所述时延到期时差限值的时延敏感业务的数据大小。
  10. 如权利要求8或9所述的方法，其特征在于，
    所述时延到期时差限值由所述第二站点配置或指示，或者，所述时延到期时差限值由协议约定。
  11. 如权利要求1至10中任一项所述的方法，其特征在于，
    所述第一状态报告信息关联的数据为目标访问类型AC的目标流标识TID相应的媒体接入控制服务数据单元MSDU或聚合媒体接入控制服务数据单元A-MSDU在缓冲区中的数据；和/或，所述第一状态报告信息关联的数据为目标TID相应的MSDU或A-MSDU在缓冲区中的数据；
    其中，所述目标AC为时延敏感业务的TID所在的AC，所述目标TID为时延敏感业务的TID。
  12. 如权利要求1至11中任一项所述的方法，其特征在于，
    所述第一站点向第二站点发送第一BSR，包括：
    所述第一站点在服务周期内向所述第二站点发送所述第一BSR；或者，
    所述第一站点在服务周期外向所述第二站点发送所述第一BSR；或者，
    所述第一站点在所述第二站点调度进行时延敏感业务传输的调度周期内向所述第二站点发送所述第一BSR；或者，
    所述第一站点在所述第二站点两次调度进行时延敏感业务传输的调度周期之间向所述第二站点发送所述第一BSR。
  13. 如权利要求12所述的方法，其特征在于，所述第一站点与所述第二站点之间建立了受限目标唤醒时间r-TWT协议，且所述服务周期为r-TWT服务周期，所述第一站点为r-TWT服务周期对应的r-TWT预定站点。
  14. 如权利要求1至13中任一项所述的方法，其特征在于，
    所述第一站点向第二站点发送第一BSR，包括：
    在所述第一站点通过发送携带有服务质量QoS特征元素的流分类服务SCS请求建立SCS流之后，所述第一站点向所述第二站点发送所述第一BSR；
    其中，所述QoS特征元素包括用于满足时延敏感业务传输需求的建议参数。
  15. 如权利要求14所述的方法，其特征在于，所述用于满足时延敏感业务传输需求的建议参数包括以下至少之一：方向，TID，最小服务间隔，最大服务间隔，最小数据速率，时延限值。
  16. 如权利要求1至15中任一项所述的方法，其特征在于，
    所述第一站点向第二站点发送第一BSR，包括：
    所述第一站点主动向所述第二站点发送所述第一BSR；或者，
    所述第一站点基于所述第二站点的触发向所述第二站点发送所述第一BSR。
  17. 如权利要求16所述的方法，其特征在于，
    在所述第一站点主动向所述第二站点发送所述第一BSR的情况下，所述第一站点在传输给所述第二站点的任一帧的基于待传输数据紧急程度的BSR控制子域中携带所述第一BSR。
  18. 如权利要求16所述的方法，其特征在于，
    在所述第一站点基于所述第二站点的触发向所述第二站点发送所述第一BSR的情况下，所述第二站点发送的触发帧为基于待传输数据紧急程度的缓冲区状态报告轮询触发帧。
  19. 如权利要求18所述的方法，其特征在于，
    所述第一站点按照所述触发帧中指示的预设紧急程度要求或范围在传输给所述第二站点的用于响应所述触发帧的任一帧的BSR控制子域新变体；或者，
    所述第一站点按照所述触发帧中指示的预设紧急程度要求或范围在传输给所述第二站点的用于响应所述触发帧的任一帧的基于待传输数据紧急程度的BSR控制子域中携带所述第一BSR。
  20. 如权利要求18或19所述的方法，其特征在于，
    所述触发帧包括以下至少之一：用于指示预设紧急程度要求或范围的指示信息，用于指示是否触发上报缓冲区中所有时延敏感业务数据的状态报告信息的指示信息，用于指示是否基于服务周期来表示预设紧急程度要求或范围的指示信息。
  21. 如权利要求18至20中任一项所述的方法，其特征在于，
    所述触发帧包括触发类型字段，其中，所述触发类型字段用于指示所述触发帧为基于待传输数据紧急程度的缓冲区状态报告轮询触发帧。
  22. 如权利要求18至21中任一项所述的方法，其特征在于，
    所述触发帧包括触发关联通用信息字段；
    其中，所述触发关联通用信息字段包括以下至少之一：是否所有字段、是否基于服务周期字段、换算系数字段和时延到期时差限值字段；或者，所述触发关联通用信息字段包括以下至少之一：是否所有字段、是否基于服务周期字段、第一时延过期指示位图字段；
    其中，所述是否所有字段用于指示是否触发所述第一站点的缓冲区中所有时延敏感业务数据的状态报告信息，所述是否基于服务周期字段用于指示是否基于服务周期来表示预设紧急程度要求或范围，所述换算系数字段用于指示时延到期时差限值字段的单位，所述时延到期时差限值字段用于指示待上报状态报告信息对应的缓冲区数据需满足的预设紧急程度要求或范围，所述第一时延过期指示位图字段用于指示待上报状态报告信息对应的缓冲区数据需满足的预设紧急程度要求或范围。
  23. 如权利要求22所述的方法，其特征在于，
    所述是否所有字段取第一值表示触发所述第一站点上报的缓冲区中所有时延敏感业务数据的状态报告信息，所述是否所有字段取第二值表示触发所述第一站点上报的缓冲区中满足预设紧急程度要求或范围的时延敏感业务数据的状态报告信息。
  24. 如权利要求22或23所述的方法，其特征在于，
    所述时延到期时差限值字段表示所述第一站点上报缓冲区中的时延到期时差小于或等于时延到期时差限值的时延敏感业务数据所对应的状态报告信息。
  25. 如权利要求22或23所述的方法，其特征在于，
    所述第一时延过期指示位图字段取第一值表示当前时刻传输时延已过期的目标TID或目标AC的目标TID相应的缓冲流量；
    所述第一时延过期指示位图字段取第二值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为当前时刻，所述第二时刻为以下之一：当前所分配的服务周期的结束时间点，下一个所分配的服务周期的起始时间点，下一个所 分配的服务周期的结束时间点；
    所述第一时延过期指示位图字段取第三值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为当前所分配的服务周期的结束时间点，所述第二时刻为以下之一：下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；
    所述第一时延过期指示位图字段取第四值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为下一个所分配的服务周期的起始时间点，所述第二时刻为下一个所分配的服务周期的结束时间点；
    其中，所述目标AC为时延敏感业务的TID所在的AC，所述目标TID为时延敏感业务的TID。
  26. 如权利要求22或23所述的方法，其特征在于，
    所述第一时延过期指示位图字段取第一值表示当前时刻传输时延已过期的目标TID或目标AC的目标TID相应的缓冲流量；
    所述第一时延过期指示位图字段取第二值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为当前时刻，以及所述第二时刻为以下之一：当前调度周期的结束时间点，下一次调度周期的起始时间点，下一次调度周期的结束时间点；
    所述第一时延过期指示位图字段取第三值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为当前调度周期的结束时间点，所述第二时刻为以下之一：下一次调度周期的起始时间点，下一次调度周期的结束时间点；
    所述第一时延过期指示位图字段取第四值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为下一次调度周期的起始时间点，所述第二时刻为下一次调度周期的结束时间点；
    其中，所述目标AC为时延敏感业务的TID所在的AC，所述目标TID为时延敏感业务的TID，所述调度周期用于调度进行时延敏感业务的传输。
  27. 如权利要求22至26中任一项所述的方法，其特征在于，
    所述是否基于服务周期字段取第一值表示不是基于服务周期来表示所述预设紧急程度要求或范围，且采用所述换算系数字段与所述时延到期时差限值字段来表示所述预设紧急程度要求或范围；
    所述是否基于服务周期字段取第二值表示基于服务周期来表示所述预设紧急程度要求或范围，且采用所述第一时延过期指示位图字段表示所述预设紧急程度要求或范围。
  28. 如权利要求18至27中任一项所述的方法，其特征在于，
    所述第一BSR由第一BSR控制字段承载；
    其中，所述第一BSR控制字段包括以下至少之一：访问类型索引位图字段、变量流标识字段、高优先级访问类型索引字段、第一队列字段和第二队列字段；
    其中，所述访问类型索引位图字段用于指示所报告缓冲区状态的时延敏感业务的TID所在的AC，所述变量流标识字段与所述访问类型索引位图字段一起用于指示所述第一站点正在报告的缓冲区状态的时延敏感业务的TID数量，所述高优先级访问类型索引字段用于指示所述第一队列字段所指示的BSR对应的时延敏感业务的TID所在的AC，所述第一队列字段用于指示待发送至目标设备的由所述高优先级访问类型字段所指示的AC中时延敏感业务的TID所对应的满足预设紧急程度要求或范围的缓冲区流量大小，所述第二队列字段用于指示待发送至目标设备的由所述访问类型索引位图字段所指示的所有AC中时延敏感业务的TID所对应的满足预设紧急程度要求或范围的缓冲区流量大小；
    其中，所述目标设备通过包含所述第一BSR控制字段的帧的接收者地址来标识，所述预设紧急程度要求或范围由所述第二站点发送的触发帧指示。
  29. 如权利要求28所述的方法，其特征在于，所述第一BSR控制字段为BSR控制子域新变体。
  30. 如权利要求29所述的方法，其特征在于，所述方法还包括：
    在所述第一站点收到所述第二站点发送的触发帧并且所述触发帧指示所述第一站点上报基于待传输数据紧急程度的缓冲区状态报告的情况下，所述第一站点确定采用所述BSR控制子域新变体上报所述第一BSR。
  31. 如权利要求1至27中任一项所述的方法，其特征在于，
    所述第一BSR由第二BSR控制字段承载；
    其中，所述第二BSR控制字段包括以下至少之一：访问类型索引位图字段、变量流标识字段、是否基于服务周期字段、第二时延过期指示位图字段、换算系数字段和缓冲区特定流量大小字段；
    其中，所述访问类型索引位图字段用于指示所报告缓冲区状态的时延敏感业务的TID所在的AC， 所述变量流标识字段与所述访问类型索引位图字段一起用于指示所述第一站点正在报告的缓冲区状态的时延敏感业务的TID数量，所述是否基于服务周期字段用于指示是否基于服务周期来表示预设紧急程度要求或范围，所述第二时延过期指示位图字段用于指示所述缓冲区特定流量大小字段所指示的所有AC中时延敏感业务的TID所关联的目标缓冲区流量，所述换算系数字段用于指示所述缓冲区特定流量大小字段所对应的单位，所述缓冲区特定流量大小字段用于指示待发送至目标设备的由所述访问类型索引位图字段所指示的所有AC中时延敏感业务的TID所对应的满足预设紧急程度要求或范围的缓冲区流量大小；
    其中，所述目标设备通过包含所述第二BSR控制字段的帧的接收者地址来标识，所述预设紧急程度要求或范围由所述第二时延过期指示位图字段来指示。
  32. 如权利要求31所述的方法，其特征在于，
    所述第二时延过期指示位图字段取第一值表示所述目标缓冲区流量为所有目标TID或目标AC的目标TID相应的缓冲区流量；
    所述第二时延过期指示位图字段取第二值表示所述目标缓冲区流量为当前时刻传输时延已过期的目标TID或目标AC的目标TID相应的缓冲流量；
    所述第二时延过期指示位图字段取第三值表示所述目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为当前时刻，所述第二时刻为当前所分配的服务周期的结束时间点，下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；
    所述第二时延过期指示位图字段取第四值表示所述目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为当前所分配的服务周期的结束时间点，所述第二时刻为以下之一：下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；
    所述第二时延过期指示位图字段取第五值表示所述目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为下一个所分配的服务周期的起始时间点，所述第二时刻为下一个所分配的服务周期的结束时间点；
    其中，所述目标AC为时延敏感业务的TID所在的AC，所述目标TID为时延敏感业务的TID。
  33. 如权利要求31所述的方法，其特征在于，
    所述第二时延过期指示位图字段取第一值表示所述目标缓冲区流量为所有目标TID或目标AC的目标TID相应的缓冲区流量；
    所述第二时延过期指示位图字段取第二值表示所述目标缓冲区流量为当前时刻传输时延已过期的目标TID或目标AC的目标TID相应的缓冲流量；
    所述第二时延过期指示位图字段取第三值表示所述目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为当前时刻，所述第二时刻为以下之一：当前调度周期的结束时间点，下一次调度周期的起始时间点，下一次调度周期的结束时间点；
    所述第二时延过期指示位图字段取第四值表示所述目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为当前调度周期的结束时间点，所述第二时刻为以下之一：下一次调度周期的起始时间点，下一次调度周期的结束时间点；
    所述第二时延过期指示位图字段取第五值表示所述目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为下一次调度周期的起始时间点，所述第二时刻为下一次调度周期的结束时间点；
    其中，所述目标AC为时延敏感业务的TID所在的AC，所述目标TID为时延敏感业务的TID，所述调度周期用于调度进行时延敏感业务的传输。
  34. 如权利要求31至33中任一项所述的方法，其特征在于，所述第二BSR控制字段为基于待传输数据紧急程度的BSR控制子域。
  35. 如权利要求1至27中任一项所述的方法，其特征在于，
    所述第一BSR由第三BSR控制字段承载；
    其中，所述第三BSR控制字段包括以下至少之一：访问类型索引位图字段、变量流标识字段、是否基于服务周期字段、时延到期时差限值字段、时延换算系数字段和缓冲区特定流量大小字段；
    其中，所述访问类型索引位图字段用于指示所报告缓冲区状态的时延敏感业务的TID所在的AC，所述变量流标识字段与所述访问类型索引位图字段一起用于指示所述第一站点正在报告的缓冲区状 态的时延敏感业务的TID数量，所述是否基于服务周期字段用于指示是否基于服务周期来表示预设紧急程度要求或范围，所述时延换算系数字段用于指示所述时延到期时差限值字段所对应的单位，所述时延到期时差限值字段用于指示待上报状态报告信息对应的缓冲区数据需满足的预设紧急程度要求或范围，所述缓冲区流量换算系数字段用于指示所述缓冲区特定流量大小字段所对应的单位，所述缓冲区特定流量大小字段用于指示待发送至目标设备的由所述访问类型索引位图字段所指示的所有AC中时延敏感业务的TID所对应的满足预设紧急程度要求或范围的缓冲区流量大小；
    其中，所述目标设备通过包含所述第三BSR控制字段的帧的接收者地址来标识，所述预设紧急程度要求或范围由所述时延到期时差限值字段来指示。
  36. 如权利要求35所述的方法，其特征在于，
    所述时延到期时差限值字段表示所述第一站点上报缓冲区中的时延到期时差小于或等于时延到期时差限值的时延敏感业务数据所对应的状态报告信息。
  37. 如权利要求35或36所述的方法，其特征在于，所述第三BSR控制字段为基于待传输数据紧急程度的BSR控制子域。
  38. 如权利要求3至6、12、20、22至27、31至37中任一项所述的方法，其特征在于，所述服务周期为受限目标唤醒时间r-TWT的服务周期，且所述第一站点为所述r-TWT的预定站点。
  39. 如权利要求9、24或36所述的方法，其特征在于，
    所述时延到期时差为时延敏感业务数据从当前时刻到所述时延敏感业务数据的传输时延过期时间点之间的时间差值；或者，所述时延到期时差为时延敏感业务数据从目标时刻到所述时延敏感业务数据的传输时延过期时间点之间的时间差值。
  40. 如权利要求3、4、5、6、25、26、32或33所述的方法，其特征在于，
    传输时延过期的时间点是指属于时延敏感业务流的MSDU或者A-MSDU从本地媒体接入控制MAC服务访问点到达MAC子层的时间点开始经过限定时延时长的时间点；
    其中，所述限定时延为允许传输MSDU或者A-MSDU的最大时长。
  41. 如权利要求4、5、6、25、26、32或33所述的方法，其特征在于，
    传输时延已过期是指待传输的MSDU或者A-MSDU针对当前时刻的时延到期时差小于或等于零，或者，传输时延已过期是指待传输的MSDU或者A-MSDU针对当前时刻的时延到期时差小于时延过期偏差阈值；和/或，
    传输时延过期是指待传输的MSDU或者A-MSDU针对目标时刻的时延到期时差小于或等于零，或者，传输时延过期是指待传输的MSDU或者A-MSDU针对目标时刻的时延到期时差小于时延过期偏差阈值；和/或，
    传输时延未过期是指待传输的MSDU或者A-MSDU针对目标时刻的时延到期时差大于零，或者，传输时延未过期是指待传输的MSDU或者A-MSDU针对目标时刻的时延到期时差大于或等于时延过期偏差阈值。
  42. 如权利要求41所述的方法，其特征在于，所述时延过期偏差阈值为MSDU或A-MSDU从开始传输时间点到确认成功传输时间点之间的时间间隔。
  43. 如权利要求1至42中任一项所述的方法，其特征在于，
    所述第一站点为非接入点站点non-AP STA，所述第二站点为接入点站点AP STA。
  44. 如权利要求1至17，31至43中任一项所述的方法，其特征在于，
    所述第一站点为non-AP STA，所述第二站点为另一个non-AP STA；或者，
    所述第一站点为AP STA，所述第二站点为另一个AP STA。
  45. 一种无线通信的方法，其特征在于，包括：
    第二站点接收第一站点发送的第一缓冲区状态报告BSR；
    其中，所述第一BSR至少包括第一状态报告信息，所述第一状态报告信息为基于待传输数据紧急程度的缓冲区状态报告信息。
  46. 如权利要求45所述的方法，其特征在于，所述第一状态报告信息包括缓冲区中满足预设紧急程度要求或范围的时延敏感业务数据的状态报告信息。
  47. 如权利要求46所述的方法，其特征在于，
    所述预设紧急程度要求或范围基于服务周期内关联的传输时延过期的缓冲区中时延敏感业务数据的状态报告信息表示；或者，
    所述预设紧急程度要求或范围基于调度周期内关联的传输时延过期的缓冲区中时延敏感业务数据的状态报告信息表示，其中，所述调度周期用于调度进行时延敏感业务的传输。
  48. 如权利要求47所述的方法，其特征在于，所述第一状态报告信息具体包括以下至少之一：
    缓冲区中传输时延已过期的时延敏感业务的数据大小，缓冲区中传输时延在第一时刻未过期且在第二时刻过期的时延敏感业务的数据大小。
  49. 如权利要求48所述的方法，其特征在于，所述第二时刻晚于所述第一时刻。
  50. 如权利要求49所述的方法，其特征在于，
    所述第一时刻为当前时刻，且所述第二时刻为以下之一：当前所分配的服务周期的结束时间点，下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；或者，
    所述第一时刻为当前所分配的服务周期的结束时间点，且所述第二时刻为以下之一：下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；或者，
    所述第一时刻为下一个所分配的服务周期的起始时间点，且所述第二时刻为下一个所分配的服务周期的结束时间点。
  51. 如权利要求49所述的方法，其特征在于，
    所述第一时刻为当前时刻，且所述第二时刻为以下之一：当前调度周期的结束时间点，下一次调度周期的起始时间点，下一次调度周期的结束时间点；或者，
    所述第一时刻为当前调度周期的结束时间点，且所述第二时刻为以下之一：下一次调度周期的起始时间点，下一次调度周期的结束时间点；或者，
    所述第一时刻为下一次调度周期的起始时间点，所述第二时刻为下一次调度周期的结束时间点；
    其中，所述调度周期用于调度进行时延敏感业务的传输。
  52. 如权利要求46所述的方法，其特征在于，所述预设紧急程度要求或范围基于时延到期时差限值范围的缓冲区中时延敏感业务数据的状态报告信息表示。
  53. 如权利要求52所述的方法，其特征在于，所述第一状态报告信息具体包括缓冲区中时延到期时差小于或等于所述时延到期时差限值的时延敏感业务的数据大小。
  54. 如权利要求52或53所述的方法，其特征在于，
    所述时延到期时差限值由所述第二站点配置或指示，或者，所述时延到期时差限值由协议约定。
  55. 如权利要求45至54中任一项所述的方法，其特征在于，
    所述第一状态报告信息关联的数据为目标访问类型AC的目标流标识TID相应的媒体接入控制服务数据单元MSDU或聚合媒体接入控制服务数据单元A-MSDU在缓冲区中的数据；和/或，所述第一状态报告信息关联的数据为目标TID相应的MSDU或A-MSDU在缓冲区中的数据；
    其中，所述目标AC为时延敏感业务的TID所在的AC，所述目标TID为时延敏感业务的TID。
  56. 如权利要求45至55中任一项所述的方法，其特征在于，
    所述第二站点接收第一站点发送的第一BSR，包括：
    所述第二站点接收所述第一站点在服务周期内发送的所述第一BSR；或者，
    所述第二站点接收所述第一站点在服务周期外发送的所述第一BSR；或者，
    所述第二站点接收所述第一站点在所述第二站点调度进行时延敏感业务传输的调度周期内发送的所述第一BSR；或者，
    所述第二站点接收所述第一站点在所述第二站点两次调度进行时延敏感业务传输的调度周期之间发送的所述第一BSR。
  57. 如权利要求56所述的方法，其特征在于，所述第一站点与所述第二站点之间建立了受限目标唤醒时间r-TWT协议，且所述服务周期为r-TWT服务周期，所述第一站点为r-TWT服务周期对应的r-TWT预定站点。
  58. 如权利要求45至57中任一项所述的方法，其特征在于，
    所述第二站点接收第一站点发送的第一BSR，包括：
    在所述第一站点通过发送携带有服务质量QoS特征元素的流分类服务SCS请求建立SCS流之后，所述第二站点接收所述第一站点发送的所述第一BSR；
    其中，所述QoS特征元素包括用于满足时延敏感业务传输需求的建议参数。
  59. 如权利要求58所述的方法，其特征在于，所述用于满足时延敏感业务传输需求的建议参数包括以下至少之一：方向，TID，最小服务间隔，最大服务间隔，最小数据速率，时延限值。
  60. 如权利要求45至59中任一项所述的方法，其特征在于，
    所述第二站点接收第一站点发送的第一BSR，包括：
    所述第二站点接收所述第一站点主动发送的所述第一BSR；或者，
    所述第二站点接收所述第一站点基于所述第二站点的触发发送的所述第一BSR。
  61. 如权利要求60所述的方法，其特征在于，
    在所述第一站点主动向所述第二站点发送所述第一BSR的情况下，所述第一站点在传输给所述 第二站点的任一帧的基于待传输数据紧急程度的BSR控制子域中携带所述第一BSR。
  62. 如权利要求60所述的方法，其特征在于，
    在所述第一站点基于所述第二站点的触发向所述第二站点发送所述第一BSR的情况下，所述第二站点发送的触发帧为基于待传输数据紧急程度的缓冲区状态报告轮询触发帧。
  63. 如权利要求62所述的方法，其特征在于，
    所述第一站点按照所述触发帧中指示的预设紧急程度要求或范围在传输给所述第二站点的用于响应所述触发帧的任一帧的BSR控制子域新变体；或者，
    所述第一站点按照所述触发帧中指示的预设紧急程度要求或范围在传输给所述第二站点的用于响应所述触发帧的任一帧的基于待传输数据紧急程度的BSR控制子域中携带所述第一BSR。
  64. 如权利要求62或63所述的方法，其特征在于，
    所述触发帧包括以下至少之一：用于指示预设紧急程度要求或范围的指示信息，用于指示是否触发上报缓冲区中所有时延敏感业务数据的状态报告信息的指示信息，用于指示是否基于服务周期来表示预设紧急程度要求或范围的指示信息。
  65. 如权利要求62至64中任一项所述的方法，其特征在于，
    所述触发帧包括触发类型字段，其中，所述触发类型字段用于指示所述触发帧为基于待传输数据紧急程度的缓冲区状态报告轮询触发帧。
  66. 如权利要求62至65中任一项所述的方法，其特征在于，
    所述触发帧包括触发关联通用信息字段；
    其中，所述触发关联通用信息字段包括以下至少之一：是否所有字段、是否基于服务周期字段、换算系数字段和时延到期时差限值字段；或者，所述触发关联通用信息字段包括以下至少之一：是否所有字段、是否基于服务周期字段、第一时延过期指示位图字段；
    其中，所述是否所有字段用于指示是否触发所述第一站点的缓冲区中所有时延敏感业务数据的状态报告信息，所述是否基于服务周期字段用于指示是否基于服务周期来表示预设紧急程度要求或范围，所述换算系数字段用于指示时延到期时差限值字段的单位，所述时延到期时差限值字段用于指示待上报状态报告信息对应的缓冲区数据需满足的预设紧急程度要求或范围，所述第一时延过期指示位图字段用于指示待上报状态报告信息对应的缓冲区数据需满足的预设紧急程度要求或范围。
  67. 如权利要求66所述的方法，其特征在于，
    所述是否所有字段取第一值表示触发所述第一站点上报的缓冲区中所有时延敏感业务数据的状态报告信息，所述是否所有字段取第二值表示触发所述第一站点上报的缓冲区中满足预设紧急程度要求或范围的时延敏感业务数据的状态报告信息。
  68. 如权利要求66或67所述的方法，其特征在于，
    所述时延到期时差限值字段表示所述第一站点上报缓冲区中的时延到期时差小于或等于时延到期时差限值的时延敏感业务数据所对应的状态报告信息。
  69. 如权利要求66或67所述的方法，其特征在于，
    所述第一时延过期指示位图字段取第一值表示当前时刻传输时延已过期的目标TID或目标AC的目标TID相应的缓冲流量；
    所述第一时延过期指示位图字段取第二值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为当前时刻，所述第二时刻为以下之一：当前所分配的服务周期的结束时间点，下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；
    所述第一时延过期指示位图字段取第三值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为当前所分配的服务周期的结束时间点，所述第二时刻为以下之一：下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；
    所述第一时延过期指示位图字段取第四值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为下一个所分配的服务周期的起始时间点，所述第二时刻为下一个所分配的服务周期的结束时间点；
    其中，所述目标AC为时延敏感业务的TID所在的AC，所述目标TID为时延敏感业务的TID。
  70. 如权利要求66或67所述的方法，其特征在于，
    所述第一时延过期指示位图字段取第一值表示当前时刻传输时延已过期的目标TID或目标AC的目标TID相应的缓冲流量；
    所述第一时延过期指示位图字段取第二值表示传输时延在第一时刻未过期且在第二时刻过期的 目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为当前时刻，所述第二时刻为以下之一：当前调度周期的结束时间点，下一次调度周期的起始时间点，下一次调度周期的结束时间点；
    所述第一时延过期指示位图字段取第三值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为当前调度周期的结束时间点，所述第二时刻为以下之一：下一次调度周期的起始时间点，下一次调度周期的结束时间点；
    所述第一时延过期指示位图字段取第四值表示传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为下一次调度周期的起始时间点，所述第二时刻为下一次调度周期的结束时间点；
    其中，所述目标AC为时延敏感业务的TID所在的AC，所述目标TID为时延敏感业务的TID，所述调度周期用于调度进行时延敏感业务的传输。
  71. 如权利要求66至70中任一项所述的方法，其特征在于，
    所述是否基于服务周期字段取第一值表示不是基于服务周期来表示所述预设紧急程度要求或范围，且采用所述换算系数字段与所述时延到期时差限值字段来表示所述预设紧急程度要求或范围；
    所述是否基于服务周期字段取第二值表示基于服务周期来表示所述预设紧急程度要求或范围，且采用所述第一时延过期指示位图字段表示所述预设紧急程度要求或范围。
  72. 如权利要求66至71中任一项所述的方法，其特征在于，
    所述第一BSR由第一BSR控制字段承载；
    其中，所述第一BSR控制字段包括以下至少之一：访问类型索引位图字段、变量流标识字段、高优先级访问类型索引字段、第一队列字段和第二队列字段；
    其中，所述访问类型索引位图字段用于指示所报告缓冲区状态的时延敏感业务的TID所在的AC，所述变量流标识字段与所述访问类型索引位图字段一起用于指示所述第一站点正在报告的缓冲区状态的时延敏感业务的TID数量，所述高优先级访问类型索引字段用于指示所述第一队列字段所指示的BSR对应的时延敏感业务的TID所在的AC，所述第一队列字段用于指示待发送至目标设备的由所述高优先级访问类型字段所指示的AC中时延敏感业务的TID所对应的满足预设紧急程度要求或范围的缓冲区流量大小，所述第二队列字段用于指示待发送至目标设备的由所述访问类型索引位图字段所指示的所有AC中时延敏感业务的TID所对应的满足预设紧急程度要求或范围的缓冲区流量大小；
    其中，所述目标设备通过包含所述第一BSR控制字段的帧的接收者地址来标识，所述预设紧急程度要求或范围由所述第二站点发送的触发帧指示。
  73. 如权利要求72所述的方法，其特征在于，所述第一BSR控制字段为BSR控制子域新变体。
  74. 如权利要求73所述的方法，其特征在于，在所述第一站点收到所述第二站点发送的触发帧并且所述触发帧指示所述第一站点上报基于待传输数据紧急程度的缓冲区状态报告的情况下，所述第一站点采用所述BSR控制子域新变体上报所述第一BSR。
  75. 如权利要求45至71中任一项所述的方法，其特征在于，
    所述第一BSR由第二BSR控制字段承载；
    其中，所述第二BSR控制字段包括以下至少之一：访问类型索引位图字段、变量流标识字段、是否基于服务周期字段、第二时延过期指示位图字段、换算系数字段和缓冲区特定流量大小字段；
    其中，所述访问类型索引位图字段用于指示所报告缓冲区状态的时延敏感业务的TID所在的AC，所述变量流标识字段与所述访问类型索引位图字段一起用于指示所述第一站点正在报告的缓冲区状态的时延敏感业务的TID数量，所述是否基于服务周期字段用于指示是否基于服务周期来表示预设紧急程度要求或范围，所述第二时延过期指示位图字段用于指示所述缓冲区特定流量大小字段所指示的所有AC中时延敏感业务的TID所关联的目标缓冲区流量，所述换算系数字段用于指示所述缓冲区特定流量大小字段所对应的单位，所述缓冲区特定流量大小字段用于指示待发送至目标设备的由所述访问类型索引位图字段所指示的所有AC中时延敏感业务的TID所对应的满足预设紧急程度要求或范围的缓冲区流量大小；
    其中，所述目标设备通过包含所述第二BSR控制字段的帧的接收者地址来标识，所述预设紧急程度要求或范围由所述第二时延过期指示位图字段来指示。
  76. 如权利要求75所述的方法，其特征在于，
    所述第二时延过期指示位图字段取第一值表示所述目标缓冲区流量为所有目标TID或目标AC的目标TID相应的缓冲区流量；
    所述第二时延过期指示位图字段取第二值表示所述目标缓冲区流量为当前时刻传输时延已过期的目标TID或目标AC的目标TID相应的缓冲流量；
    所述第二时延过期指示位图字段取第三值表示所述目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为当前时刻，所述第二时刻为当前所分配的服务周期的结束时间点，下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；
    所述第二时延过期指示位图字段取第四值表示所述目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为当前所分配的服务周期的结束时间点，所述第二时刻为以下之一：下一个所分配的服务周期的起始时间点，下一个所分配的服务周期的结束时间点；
    所述第二时延过期指示位图字段取第五值表示所述目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为下一个所分配的服务周期的起始时间点，所述第二时刻为下一个所分配的服务周期的结束时间点；
    其中，所述目标AC为时延敏感业务的TID所在的AC，所述目标TID为时延敏感业务的TID。
  77. 如权利要求75所述的方法，其特征在于，
    所述第二时延过期指示位图字段取第一值表示所述目标缓冲区流量为所有目标TID或目标AC的目标TID相应的缓冲区流量；
    所述第二时延过期指示位图字段取第二值表示所述目标缓冲区流量为当前时刻传输时延已过期的目标TID或目标AC的目标TID相应的缓冲流量；
    所述第二时延过期指示位图字段取第三值表示所述目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为当前时刻，所述第二时刻为以下之一：当前调度周期的结束时间点，下一次调度周期的起始时间点，下一次调度周期的结束时间点；
    所述第二时延过期指示位图字段取第四值表示所述目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为当前调度周期的结束时间点，所述第二时刻为以下之一：下一次调度周期的起始时间点，下一次调度周期的结束时间点；
    所述第二时延过期指示位图字段取第五值表示所述目标缓冲区流量为传输时延在第一时刻未过期且在第二时刻过期的目标TID或目标AC的目标TID相应的缓冲流量，其中，所述第一时刻为下一次调度周期的起始时间点，所述第二时刻为下一次调度周期的结束时间点；
    其中，所述目标AC为时延敏感业务的TID所在的AC，所述目标TID为时延敏感业务的TID，所述调度周期用于调度进行时延敏感业务的传输。
  78. 如权利要求75至77中任一项所述的方法，其特征在于，所述第二BSR控制字段为基于待传输数据紧急程度的BSR控制子域。
  79. 如权利要求45至71中任一项所述的方法，其特征在于，
    所述第一BSR由第三BSR控制字段承载；
    其中，所述第三BSR控制字段包括以下至少之一：访问类型索引位图字段、变量流标识字段、是否基于服务周期字段、时延到期时差限值字段、时延换算系数字段和缓冲区特定流量大小字段；
    其中，所述访问类型索引位图字段用于指示所报告缓冲区状态的时延敏感业务的TID所在的AC，所述变量流标识字段与所述访问类型索引位图字段一起用于指示所述第一站点正在报告的缓冲区状态的时延敏感业务的TID数量，所述是否基于服务周期字段用于指示是否基于服务周期来表示预设紧急程度要求或范围，所述时延换算系数字段用于指示所述时延到期时差限值字段所对应的单位，所述时延到期时差限值字段用于指示待上报状态报告信息对应的缓冲区数据需满足的预设紧急程度要求或范围，所述缓冲区流量换算系数字段用于指示所述缓冲区特定流量大小字段所对应的单位，所述缓冲区特定流量大小字段用于指示待发送至目标设备的由所述访问类型索引位图字段所指示的所有AC中时延敏感业务的TID所对应的满足预设紧急程度要求或范围的缓冲区流量大小；
    其中，所述目标设备通过包含所述第三BSR控制字段的帧的接收者地址来标识，所述预设紧急程度要求或范围由所述时延到期时差限值字段来指示。
  80. 如权利要求79所述的方法，其特征在于，
    所述时延到期时差限值字段表示所述第一站点上报缓冲区中的时延到期时差小于或等于时延到期时差限值的时延敏感业务数据所对应的状态报告信息。
  81. 如权利要求79或80所述的方法，其特征在于，所述第三BSR控制字段为基于待传输数据紧急程度的BSR控制子域。
  82. 如权利要求47至50、56、64、66至71、75至81中任一项所述的方法，其特征在于，所述 服务周期为受限目标唤醒时间r-TWT的服务周期，且所述第一站点为所述r-TWT的预定站点。
  83. 如权利要求53、68或80所述的方法，其特征在于，
    所述时延到期时差为时延敏感业务数据从当前时刻到所述时延敏感业务数据的传输时延过期时间点之间的时间差值；或者，所述时延到期时差为时延敏感业务数据从目标时刻到所述时延敏感业务数据的传输时延过期时间点之间的时间差值。
  84. 如权利要求47、48、49、50、69、70、76或77所述的方法，其特征在于，
    传输时延过期的时间点是指属于时延敏感业务流的MSDU或者A-MSDU从本地媒体接入控制MAC服务访问点到达MAC子层的时间点开始经过限定时延时长的时间点；
    其中，所述限定时延为允许传输MSDU或者A-MSDU的最大时长。
  85. 如权利要求48、49、50、69、70、76或77所述的方法，其特征在于，
    传输时延已过期是指待传输的MSDU或者A-MSDU针对当前时刻的时延到期时差小于或等于零，或者，传输时延已过期是指待传输的MSDU或者A-MSDU针对当前时刻的时延到期时差小于时延过期偏差阈值；和/或，
    传输时延过期是指待传输的MSDU或者A-MSDU针对目标时刻的时延到期时差小于或等于零，或者，传输时延过期是指待传输的MSDU或者A-MSDU针对目标时刻的时延到期时差小于时延过期偏差阈值；和/或，
    传输时延未过期是指待传输的MSDU或者A-MSDU针对目标时刻的时延到期时差大于零，或者，传输时延未过期是指待传输的MSDU或者A-MSDU针对目标时刻的时延到期时差大于或等于时延过期偏差阈值。
  86. 如权利要求85所述的方法，其特征在于，所述时延过期偏差阈值为MSDU或A-MSDU从开始传输时间点到确认成功传输时间点之间的时间间隔。
  87. 如权利要求45至86中任一项所述的方法，其特征在于，
    所述第一站点为非接入点站点non-AP STA，所述第二站点为接入点站点AP STA。
  88. 如权利要求45至61，75至87中任一项所述的方法，其特征在于，
    所述第一站点为non-AP STA，所述第二站点为另一个non-AP STA；或者，
    所述第一站点为AP STA，所述第二站点为另一个AP STA。
  89. 一种站点设备，其特征在于，所述站点设备为第一站点，所述站点设备包括：
    通信单元，用于向第二站点发送第一缓冲区状态报告BSR；
    其中，所述第一BSR至少包括第一状态报告信息，所述第一状态报告信息为基于待传输数据紧急程度的缓冲区状态报告信息。
  90. 一种站点设备，其特征在于，所述站点设备为第二站点，所述站点设备包括：
    通信单元，用于接收第一站点发送的第一缓冲区状态报告BSR；
    其中，所述第一BSR至少包括第一状态报告信息，所述第一状态报告信息为基于待传输数据紧急程度的缓冲区状态报告信息。
  91. 一种站点设备，其特征在于，包括：处理器、存储器和收发器，所述收发器用于收发信息，所述存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，使得所述站点设备执行如权利要求1至44中任一项所述的方法。
  92. 一种站点设备，其特征在于，包括：处理器、存储器和收发器，所述收发器用于收发信息，所述存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，使得所述站点设备执行如权利要求45至88中任一项所述的方法。
  93. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求1至44中任一项所述的方法。
  94. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求45至88中任一项所述的方法。
  95. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求1至44中任一项所述的方法。
  96. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求45至88中任一项所述的方法。
  97. 一种计算机程序产品，其特征在于，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求1至44中任一项所述的方法。
  98. 一种计算机程序产品，其特征在于，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求45至88中任一项所述的方法。
  99. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求1至44中任一项所述的方法。
  100. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求45至88中任一项所述的方法。
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