WO2022047636A1 - 一种多连接下的通信方法和通信设备 - Google Patents

一种多连接下的通信方法和通信设备 Download PDF

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Publication number
WO2022047636A1
WO2022047636A1 PCT/CN2020/112912 CN2020112912W WO2022047636A1 WO 2022047636 A1 WO2022047636 A1 WO 2022047636A1 CN 2020112912 W CN2020112912 W CN 2020112912W WO 2022047636 A1 WO2022047636 A1 WO 2022047636A1
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Prior art keywords
wake
connection
communication method
information
message frame
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Ceased
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PCT/CN2020/112912
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English (en)
French (fr)
Inventor
董贤东
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to EP20951884.4A priority Critical patent/EP4210416A4/en
Priority to PCT/CN2020/112912 priority patent/WO2022047636A1/zh
Priority to US18/041,169 priority patent/US20230309014A1/en
Priority to CN202080002051.1A priority patent/CN114451055A/zh
Publication of WO2022047636A1 publication Critical patent/WO2022047636A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/12—Arrangements for remote connection or disconnection of substations or of equipment thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/005—Routing actions in the presence of nodes in sleep or doze mode
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • H04W52/0235—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal where the received signal is a power saving command
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0296—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level switching to a backup power supply
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • 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]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present disclosure relates to the field of communication, and more particularly, to a communication method and communication device under multiple connections.
  • IEEE Institute of Electrical and Electronic Engineers, Institute of Electrical and Electronics Engineers
  • IEEE802.11a/b/g/n/ac Wi- Fi technology
  • the research scope is: 320MHz bandwidth transmission, aggregation and coordination of multiple frequency bands, etc. It is expected to increase the rate and throughput by at least four times compared to the existing IEEE802.11ax standard.
  • Its main application scenarios are Video transmission, AR (Augmented Reality, augmented reality), VR (Virtual Reality, virtual reality), etc.
  • the aggregation and coordination of multiple frequency bands refers to the simultaneous communication between devices in the 2.4GHz, 5.8GHz and 6-7GHz frequency bands.
  • a new MAC Media Access Control, media access control
  • control control
  • the maximum bandwidth that will be supported is 320MHz (160MHz+160MHz), and it may also support 240MHz (160MHz+80MHz) and the bandwidth supported in the IEEE802.11ax standard.
  • a station In an existing standard, a station (STA: Station) can enter a power saving mode (also called a sleep mode) after negotiating with an access point (AP: Access Point). That is, in the process of data communication between the station and the AP, after the station receives or sends the last data frame, it replies to the AP's response frame or the power management subfield of the MAC header of the last data frame sent. Set to "1" to indicate that the site enters power saving mode.
  • STA Station
  • AP Access Point
  • the way that the station entering the power saving state can obtain the data can be obtained by listening to the TIM (Transmission Indication Map) message frame in the beacon frame, but these mechanisms can only be applied to a single Connect.
  • TIM Transmission Indication Map
  • An aspect of the present disclosure provides a multi-connection communication method.
  • the communication method includes: determining a first message frame, wherein the first message frame includes wake-up information indicating a wake-up state of one or more connections, wherein the wake-up information is used to identify a connection corresponding to wake-up to receive a buffered downlink data frame; sending the first message frame.
  • the wake-up information includes a wake-up identification bit.
  • the wake-up information includes: a first connection identifier corresponding to each connection.
  • the wake-up information includes: a second connected group identification corresponding to the connected group.
  • the wake-up information is included in a MAC header portion of the first message frame.
  • the communication method further includes: in response to buffering the downlink data frame under the connection in the dormant state, setting the wake-up identification bit to a first value to indicate that there is a connection requiring wake-up.
  • the communication method further includes: in the first connection identifier or the second connection group identifier, setting the identifier corresponding to the connection that needs to be woken up as a second value to use to wake up the corresponding connection.
  • the communication method further includes: under the awakened connection, receiving a second message frame; in response to receiving the second message frame, sending a buffered downlink data frame through the awakened connection .
  • the first message frame is a data frame and/or a management frame.
  • An aspect of the present disclosure provides a communication method.
  • the communication method includes: receiving a first message frame, the first message frame including wake-up information indicating a wake-up state of one or more connections, wherein the wake-up information is used to identify a wake-up corresponding connection to receive a buffered downlink data frame ; According to the wake-up information, wake up the corresponding connection.
  • the communication method further includes sending a fourth message frame, wherein the fourth message frame includes dormancy information for identifying dormancy states of one or more connections.
  • An aspect of the present disclosure provides a communication method.
  • the communication method includes: determining a third message frame, wherein the third message frame includes dormancy information for indicating a dormancy state of one or more connections, and sending the third message frame.
  • the hibernation information includes a power management identification.
  • the dormancy information includes: a third connection identifier corresponding to each connection.
  • the dormancy information includes: a fourth connected group identification corresponding to the connected group.
  • the communication method further includes: setting the power management identification to a third value to identify a need to enter a power saving mode.
  • the communication method further includes: in the third connection identifier or the fourth connection group identifier, setting the identifier corresponding to the connection requiring dormancy to a fourth value to identify the corresponding is in power saving mode.
  • An aspect of the present disclosure provides a multi-connection communication device, the communication device comprising: a processing module configured to: determine a first message frame, wherein the first message frame includes a message indicating one or more connections The wake-up information of the wake-up state, wherein the wake-up information is used to identify the connection corresponding to wake-up to receive the buffered downlink data frame; the sending module is configured to: send the first message frame.
  • An aspect of the present disclosure provides a multi-connection communication device, the communication device includes: a receiving module configured to: receive a first message frame, where the first message frame includes an awake state indicating one or more connections The wake-up information is used to identify the wake-up corresponding connection to receive the buffered downlink data frame; the processing module is configured to: wake up the corresponding connection according to the wake-up information.
  • the electronic device includes a memory, a processor, and a computer program stored on the memory and executable on the processor.
  • the processor executes the computer program to implement the method as described above.
  • a computer-readable storage medium is provided according to example embodiments of the present disclosure.
  • a computer program is stored on the computer-readable storage medium.
  • the computer program when executed by a processor, implements the method as described above.
  • the technical solutions provided by the exemplary embodiments of the present disclosure can reduce signaling overhead, enable devices to communicate under multiple connections, and improve network throughput.
  • FIG. 1 is an exemplary diagram illustrating a communication scenario under multiple connections.
  • FIG. 2 is a flowchart illustrating a communication method according to an example embodiment of the present disclosure.
  • FIG. 3 is a flowchart illustrating a communication method according to an example embodiment of the present disclosure.
  • FIG. 4 is a flowchart illustrating another communication method according to an example embodiment of the present disclosure.
  • FIG. 5 is a flowchart illustrating another communication method according to an example embodiment of the present disclosure.
  • FIG. 6 is an exemplary diagram illustrating interactive communication according to an exemplary embodiment of the present disclosure.
  • FIG. 7 is a block diagram illustrating a communication device according to an example embodiment of the present disclosure.
  • FIG. 8 is a block diagram illustrating another communication device according to an example embodiment of the present disclosure.
  • FIG. 1 is an exemplary diagram illustrating a communication scenario under multiple connections.
  • a basic service set may consist of an AP and one or more stations that communicate with the AP.
  • a basic service set can be connected to the distribution system DS (Distribution System) through its AP, and then connected to another basic service set to form an extended service set ESS (Extended Service Set).
  • DS Distribution System
  • ESS Extended Service Set
  • AP is a wireless switch for wireless network, and it is also the core of wireless network.
  • AP equipment can be used as a wireless base station, mainly used as a bridge for connecting wireless networks and wired networks. With this access point AP, wired and wireless networks can be integrated.
  • the AP may include software applications and/or circuitry to enable other types of nodes in the wireless network to communicate with the outside and inside of the wireless network through the AP.
  • the AP may be a terminal device or a network device equipped with a Wi-Fi (Wireless Fidelity, wireless fidelity) chip.
  • Wi-Fi Wireless Fidelity, wireless fidelity
  • a station may include, but is not limited to, cellular phones, smart phones, wearable devices, computers, personal digital assistants (PDAs), personal communication system (PCS) devices, personal information managers (PIMs), personal navigation Devices (PND), Global Positioning Systems, Multimedia Devices, Internet of Things (IoT) devices, etc.
  • PDAs personal digital assistants
  • PCS personal communication system
  • PIMs personal information managers
  • PND personal navigation Devices
  • IoT Internet of Things
  • the AP and the STA may support a multi-link device MLD (multi-link device, multi-connection device), for example, may be represented as AP MLD and Non-AP MLD, respectively.
  • MLD multi-link device, multi-connection device
  • AP MLD multi-link device, multi-connection device
  • Non-AP MLD Non-AP MLD
  • the AP MLD may represent an access point supporting the multi-connection communication function
  • the Non-AP MLD may represent a station supporting the multi-connection communication function.
  • AP MLD can work under three connections, such as AP1, AP2 and AP3 shown in Figure 1
  • Non-AP MLD can also work under three connections, such as STA1, STA2 and STA3 shown in Figure 1 .
  • FIG. 1 it is shown in FIG. 1 that there are three connections between the AP MLD and the Non-AP MLD, the present disclosure is not limited thereto, and there may be more or less connections between them.
  • Link 1 to Link 3 may be multiple connections at different frequencies, for example, connections at 2.4GHz, 5GHz, 6GHz, and so on. Furthermore, multiple channels can exist under each connection.
  • an AP MLD may be connected to a plurality of Non-AP MLDs, or under each connection, an AP may Communicate with multiple other types of sites.
  • a device may be required for a device to enter power saving mode and obtain buffered data frames: send an indication message to indicate that itself or other connections are in a dormant state under a specific connection, or send an indication message under a specific connection to indicate A message indicating that other connections are awake.
  • the exemplary embodiments of the present disclosure are redefined to enable wake-up, sleep and/or acquisition of buffered data frames under multiple connections.
  • FIGS. 2 and 3 are flowcharts illustrating a communication method according to example embodiments of the present disclosure.
  • FIGS. 2 and 3 may be communication methods performed in an access point or a control device on the access point side.
  • a first message frame is determined.
  • the first message frame may be determined by the AP under one of the multiple connections it supports.
  • the plurality of connections may be Link 1 to Link 3 shown in FIG. 1 .
  • STA1 and STA3 under Link1 and Link3 are in a dormant state, and STA2 under Link2 is in an awake state, and the AP has buffered data for STA1 and STA3 under Link1 and Link3, then the first determination is made under Link2 message frame.
  • the connection that first transitions to the awake state determines the first message frame.
  • the first message frame may be a buffered data frame.
  • the first message frame may be determined according to the communication capability of the AP and the current communication environment.
  • the pre-stored or pre-written first message frame may be directly obtained.
  • the first message frame may be a data frame or a trigger frame.
  • the first message frame may include wake-up information indicating the wake-up status of one or more connections.
  • the wake-up status of one or more connections may indicate whether each connection needs to be woken up or not.
  • the wake-up information in the first message frame may be used to identify the wake-up corresponding connection to receive the buffered downlink data frame. That is to say, the first message frame may carry wake-up information, where the wake-up information is used to wake up the connection in the dormant state to receive the buffered downlink data frame.
  • the AP has buffered downlink data frames in a dormant connection, it needs to wake up the corresponding connection.
  • the AP can selectively wake up the corresponding connection according to the load of each connection and the uplink and downlink access delay, or convert the buffered data under the connection with high load and high access delay to low-load access Under the connection with low latency, it is necessary to wake up such a connection with low load and low access latency, which can be the internal operation of the AP.
  • the AP MLD may have multiple connections established with the Non-AP MLD, and the Non-AP MLD enters a power saving mode under certain connections.
  • power saving mode and sleep state may be used interchangeably.
  • the AP MLD communicates with the Non-AP MLD under one connection, and the downlink data frames of the Non-AP MLD are buffered under other connections, the buffered downlink data frames cannot be received because the other connections are in the power saving mode. wake it up.
  • AP MLD and Non-AP MLD can perform data communication under one connection (connection that is active and in the awake state), and the AP MLD buffers downlink data frames for the Non-AP MLD under certain/some connections, Since this/these connections are in power saving mode, the AP needs to wake it up, then the data frame and/or the header part of the management frame sent under the active and awake connection can carry wakeup information to wake up this/these connections Connected STA.
  • the connection in the power saving mode may be the first connection shown in FIG. 1 .
  • the second connection Link 2 and the third connection Link 3 then the wake-up information can be carried in the first message frame sent under the first connection Link 1 to wake up the second connection Link 2 and the third connection Link 3.
  • the first message frame may be a data frame and/or a management frame.
  • the present disclosure is not limited thereto, and the first message frame may be any other type of frame according to the communication environment.
  • the wake-up information may be included in the MAC header portion of the first message frame. That is, the wake-up information can be set in both the data frame and the management frame.
  • wake-up information may be carried in the frame header portion of the buffered data frame, that is, the first message frame corresponds to the buffered data frame.
  • the format of the wake-up information may be as shown in Table 1 below.
  • the wake-up information in the first message frame may include a wake-up flag (Wake up).
  • the wake-up information may include first connection identifications (eg, Link 1 to Link 4) corresponding to the respective connections.
  • first connection identifications eg, Link 1 to Link 4
  • the wake-up flag bit wake up can be set to "1" (in other cases, set to "0"), and the first connection flag corresponding to the connection that needs to be woken up is set to "1", no need to wake up.
  • the first connection identifier corresponding to the connection is set to "0".
  • the AP buffers the downlink data frame under the connection in the dormant state, it needs to wake up the connection in the dormant state.
  • the AP can selectively wake up the corresponding connection according to the load of each connection and the uplink and downlink access delay, or convert the buffered data under the connection with high load and high access delay to the time of low load access Therefore, it is necessary to wake up such a connection with low load and low access delay.
  • this is only exemplary, and the present disclosure is not limited thereto.
  • the wake-up identification bit Wake up and each first connection identification may include multiple bits, and the wake-up identification bit Wake up may indicate whether there is a connection that needs to be woken up and/or the wake-up state of each connection, and each first connection The identification may represent the identification number of the corresponding connection.
  • the most significant bit of the wake-up identification bit Wake up may indicate whether there is a connection that needs to be woken up, the other bits are respectively corresponding to the wake-up state of each connection, and each first connection identification may indicate the identification number of the corresponding connection.
  • the wake-up information may include the wake-up identification bit Wake up and the first connection identification (eg, Link 1 to Link 4), the present disclosure is not limited thereto.
  • the wake-up information may only include one of the wake-up identification bit Wake up and the first connection identification.
  • multi-bit data may be used to represent the wake-up identification bit Wake up, and each bit may correspond to a corresponding connection.
  • the wakeup flag Wake up can be set to 01100, which indicates that the third connection and the fourth connection need to be woken up, but other connections need not be woken up.
  • the first connection identifier shown in Table 1 may include identifiers of all connections between the AP and the STA, or may only include identifiers of connections that need to be woken up.
  • the first message frame may be a buffered data frame, and the buffered data frame may include a more data field.
  • the more data field may indicate the wake-up state together with the wake-up information shown in Table 1. For example, more data can be set to 1 to indicate that there will be data transmission, the wake-up flag bit can be set to 1 and the connection that needs to be woken up is set in the first connection flag, so that the wake-up information and the more data field together enter the power saving mode The connection enters the awake state to obtain buffered downstream data frames.
  • the format of the wake-up information may be as shown in Table 2 below.
  • the wake-up information shown in Table 2 may include a second connection group identifier (Link set) corresponding to the connected group.
  • Link set connection group identifier
  • all connections between the AP MLD and the Non-AP MLD may be divided into different groups, and in Table 2, the wake-up status of each connection may be represented in the form of one or more groups.
  • only the connections that need to be woken up can be regarded as one or more groups and represented in the form of Link sets respectively.
  • connection group Link set 1 can be set as a group, and the group corresponds to the connection group Link set in Table 2, if Link 2 and Link 3 need to be woken up, then shown in Table 2
  • the second connection group identification Link set may be set to 011 and the wake up identification bit Wake up may be set to 1.
  • the Link 2 and Link 3 that need to be woken up can be set as a group and identified in the Link set.
  • the wake-up information in Table 2 may also only include the wake-up identification bit Wake up and one of the second connection identification group. For brevity, repeated descriptions are omitted here.
  • a first message frame is sent.
  • the first message frame may be sent under a connection that is not in a dormant state (a awake connection) among the plurality of connections between the AP MLD and the Non-AP MLD, and may be based on the wakeup in the first message frame information to wake up the corresponding connection to receive the buffered data frame.
  • the first message frame is sent on the connection that transitioned to the awake state first.
  • the first message frame may correspond to a buffered data frame, and the wake-up information is included in the buffered data frame, and thus may be When the connected connection actively wakes up, the buffered data frame and the wake-up information included in it are directly transmitted under the wake-up connection.
  • a communication method may include step 211: in response to buffering a downlink data frame under a connection in a dormant state, setting a wake-up flag to a first value to indicate that there is a wake-up connect.
  • the communication method may include step 212: in the first connection identifier or the second connection group identifier, set the identifier corresponding to the connection that needs to be woken up to a second value, so as to wake up the corresponding connect.
  • the step 211 of setting the wakeup flag and the step 212 of setting the first connection flag or the second connection group flag may be sub-steps of determining the first message frame (eg, step 210 of FIG. 2 ).
  • step 211 and step 212 in FIG. 3 may be combined or one of them may be omitted.
  • the first value and the second value may correspond to "1" as described above, however, this is only an example, the present disclosure is not limited thereto, and any other feasible manner may be adopted.
  • step 230 of FIG. 3 a first message frame is sent.
  • Step 230 of FIG. 3 may be similar to step 230 of FIG. 2 , and repeated descriptions are omitted for brevity.
  • a second message frame may be received.
  • the second message frame may be received under the awakened connection.
  • the second message frame may be a response frame to the sent wake-up information, which is used to inform the AP that the corresponding connection is woken up.
  • the second message frame may be a Null-Poll frame. That is, when the Non-AP MLD receives the first message frame, it wakes up the corresponding connection according to the wakeup information in the first message frame, and can send a Null-Poll frame under the corresponding connection, so the AP can wake up A second message frame (eg, Null-Poll frame) is received under the connection.
  • the AP may send the buffered downlink data frame through the awakened connection in response to receiving the second message frame.
  • Receiving the second message frame indicates that the corresponding connection has been awakened, and corresponding buffered data can be sent through it.
  • FIG. 4 is a flowchart illustrating another communication method according to an example embodiment of the present disclosure.
  • FIG. 4 may be a communication method performed in the site or in any control device on the site side.
  • a first message frame may be received.
  • the first message frame includes wake-up information indicating the wake-up state of one or more connections, and the wake-up information may be used to identify the wake-up corresponding connection to receive the buffered downlink data frame.
  • the wake-up information is included in the MAC header portion of the first message frame.
  • the wake-up information may include a wake-up identification bit.
  • the wake-up information may include: first connection identifiers corresponding to the respective connections.
  • the wake-up information includes a second connected group identification corresponding to the connected group.
  • the wake-up information in the first message frame received in step 410 may have the formats shown in Table 1 and Table 2 above, and repeated descriptions are omitted here for brevity.
  • the corresponding connection may be woken up according to the wake-up information.
  • the relevant information of the connection that needs to be woken up can be acquired according to the wake-up information, and the connection that needs to be woken up can be converted from the power saving mode to the wake-up mode.
  • a second message frame may be sent under the corresponding connection that is awakened.
  • the second message frame may be a response frame, such as a Null-Poll frame, that informs the access point that the corresponding connection has been woken up.
  • the steps shown in FIG. 4 are only exemplary, and the present disclosure is not limited thereto.
  • the communication method shown in FIG. 4 may further include: sending a fourth message frame, wherein the fourth message frame includes dormancy information for identifying dormancy states of one or more connections.
  • the fourth message frame described herein may be similar to the sleep information (eg, Table 3 and Table 4) to be described below with reference to FIG. 5 .
  • FIG. 5 is a flowchart illustrating another communication method according to an example embodiment of the present disclosure.
  • a third message frame may be determined.
  • the third message frame may include dormancy information for indicating the dormancy state of the one or more connections. That is, the third message frame may include information on whether each of the one or more connections is in a dormant state.
  • the third message frame may be a feedback frame, a data frame and/or a management frame, and the sleep information may be included in the MAC header portion of the third message frame.
  • the third message frame may be a newly defined new type of management frame that carries dormancy information for one or more connections.
  • the format of the dormancy information may be as shown in Table 3 below.
  • the sleep information in the third erasure frame may include a power management identifier (Power management).
  • the dormancy information may include: third connection identifiers (Link 1 to Link 4) corresponding to each connection.
  • the power management flag (Power management) subfield can be set to "1" (in other cases, it is set to "0"), and the third connection ID corresponding to the connection that needs to enter the power saving mode is set to "1". If it is set to "1", the third connection identifier corresponding to the connection that does not need to enter the power saving mode is set to "0".
  • this is only exemplary, and the present disclosure is not limited thereto.
  • the third connection identifier of the dormancy information shown in Table 3 may include identifiers of all connections between the AP and the STA, or may only include identifiers of connections that need to enter the power saving mode.
  • the power management identification (Power management) subfield and each third connection identification may include multiple bits, and the power management identification (Power management) subfield may indicate whether there is a connection that needs to enter the power saving mode and/or each the dormant state of the connection, and each third connection identifier may represent an identification number of the corresponding connection.
  • the most significant bit of the power management flag (Power management) subfield can indicate whether there is a connection that needs to enter the power saving mode, and the other bits of the power management flag correspond to the sleep state of each connection, and each third The connection identification may represent the identification number of the corresponding connection.
  • the sleep information may include a power management identifier (Power management) and a third connection identifier (eg, Link 1 to Link 4), the present disclosure is not limited thereto.
  • the sleep information may only include one of a power management identifier (Power management) and a third connection identifier.
  • the power management identifier (Power management) may be represented by using multi-bit data, and each bit may correspond to a corresponding connection.
  • the power management flag (Power management) may be set to 011, which indicates that the first connection and the second connection enter the power saving mode.
  • the format of the dormancy information may be as shown in Table 4 below.
  • the dormancy information shown in Table 4 may include a fourth connection group identifier (Link set) corresponding to the connected group.
  • Link set connection group identifier
  • all connections between the AP MLD and the Non-AP MLD may be divided into different groups, and the sleep states of each connection may be represented in the form of groups in Table 4.
  • only the connections that need to be woken up can be regarded as one or more groups and represented in the form of Link sets respectively.
  • Link 1 and Link 2 in FIG. 1 can be set as a group, and this group corresponds to the fourth connection group identification Link set 1 in Table 4, and the third connection Link 3 in FIG. 1 can correspond to the fourth Link set ID Link set 2.
  • Link set 1 In the case where the lower bit in Link set 1 corresponds to Link 1, if Link set 1 is set to 11 and Link set 2 is set to 0, it means that the first connection Link 1 and the second connection Link 2 will enter power saving mode, while the third connection Link 3 does not enter power saving mode. In this example, the third connection Link 3 does not enter the power saving mode, so Link set 2 may not be included in the sleep information shown in Table 4. Similar to the description in Table 3, the dormancy information in Table 4 may also include only one of a power management identifier (Power management) and a fourth connection identifier group. For brevity, repeated descriptions are omitted here.
  • Power management power management
  • the communication method shown in FIG. 5 may further include: setting the power management flag to a third value to flag that the power saving mode needs to be entered. That is, the presence of a connection that needs to enter the power saving mode may be indicated by the power management flag.
  • the communication method shown in FIG. 5 may further include: in the third connection identifier or the fourth connection group identifier, setting the identifier corresponding to the connection that needs to sleep to a fourth value to identify that the corresponding connection is in Power saving mode.
  • the above-mentioned step of setting the power management identifier and the step of setting the third connection identifier or the fourth connection group identifier may be sub-steps of determining the third message frame (eg, step 510 in FIG. 5 ).
  • the third value and the fourth value may correspond to "1", however, this is only exemplary, the present disclosure is not limited thereto, and any other feasible Way.
  • the determined third message frame may be sent, thereby informing the access point of the sleep state of the multiple connections.
  • a Non-AP MLD can carry sleep information in the MAC header of a feedback frame or data frame under any of the multiple connections, which is used to identify other connections or this connection (the connection that sends the third message frame) entering power saving model.
  • the communication method shown in FIG. 5 may send or update the sleep state to the AP after the wake-up shown in FIG. 2 and FIG. 3 is performed, or may actively report the sleep state to the AP after multiple connections are established or at any other suitable time.
  • the third message frame may be sent under any connection.
  • the sleep state is sent or updated to the AP after waking up, the third message frame may be sent under the wake-up connection.
  • FIG. 6 shows an example of interactive communication in which the STA actively reports the sleep state to the AP after the establishment of multiple connections.
  • FIG. 6 it is assumed that there are three connections between the STA and the AP as shown in FIG. 1, and they communicate with each other under the first connection Link 1, the second connection Link 2 and the third connection Link 3 are in After the multi-connection is established, it is in power saving mode.
  • multiple connections may be established between the STA and the AP.
  • multiple connections can be established by broadcasting a beacon frame.
  • the present disclosure omits the detailed description of establishing multiple connections.
  • the STA may send a third message frame to the AP under the first connection Link 1, and the third message frame may include the dormancy information shown in Table 3 or Table 4.
  • the sleep information may identify that the second connection Link 2 and the third connection Link 3 are in a power saving mode.
  • the AP may send the first message frame to the STA, and the first message frame may include Table 1 and Table 1 2 shows the wake-up information.
  • the wake-up information can be used to wake up the second connection Link 2 and the third connection Link 3, so as to transmit the buffered data frames to the corresponding stations STA 2 and STA 3.
  • the STA may send a second message frame on the second connection Link 2 and the third connection Link 3 respectively to notify the AP of the corresponding The connection is woken up.
  • step S650 and step S670 the AP can send the buffered downlink data frame on the second connection Link 2 and the third connection Link 3, respectively.
  • Steps S640 to S670 shown in FIG. 6 may be performed in parallel or in series. Furthermore, steps S610 to S670 shown in FIG. 6 may be performed in any other suitable order.
  • the same device supporting multi-connection communication can communicate through any connection in the multi-connection, so that other connections enter the power saving mode or obtain buffered downlink data frames.
  • the communication method described with reference to FIG. 2 to FIG. 6 can realize wake-up/sleep setting under multiple connections and transmission of buffered data, which reduces signaling overhead, enables devices to communicate under multiple connections, and improves network throughput .
  • FIG. 7 is a block diagram illustrating a communication device 700 according to an example embodiment of the present disclosure.
  • the communication device 700 may include a processing module 710 and a sending module 720 .
  • the processing module 710 may be configured to determine the first message frame.
  • the first message frame may include wake-up information indicating the wake-up status of one or more connections.
  • the wake-up information may be used to identify the wake-up corresponding connection to receive the buffered downlink data frame.
  • the sending module 720 may be configured to: send the first message frame.
  • the wake-up information may include a wake-up identification bit.
  • the wake-up information may include: a first connection identifier corresponding to each connection.
  • the wake-up information may include: a second connected group identification corresponding to the connected group.
  • the wake-up information may be included in the MAC header portion of the first message frame.
  • the first message frame may be a data frame and/or a management frame.
  • the processing module 710 may be configured to: in response to buffering the downlink data frame under the connection in the dormant state, set the wakeup flag to the first value to indicate that there is a connection that needs to be woken up.
  • the processing module 710 may be configured to: in the first connection identifier or the second connection group identifier, set the identifier corresponding to the connection that needs to be woken up to a second value, so as to wake up the corresponding connection.
  • the communication device 700 shown in FIG. 7 only includes the processing module 710 and the sending module 720, it is understood that the communication device 700 may also include more or less other modules.
  • the communication device 700 may also include a receiving module (not shown).
  • the receiving module may be configured to receive the second message frame under the awakened connection.
  • the sending module 720 in response to receiving the second message frame, sends the buffered downlink data frame through the awakened connection.
  • the communication device 700 shown in FIG. 7 may perform the communication method described with reference to FIG. 2 and FIG. 3 , and repeated descriptions are omitted here for brevity.
  • FIG. 8 is a block diagram illustrating another communication device 800 according to an example embodiment of the present disclosure.
  • the communication device 800 may include a processing module 810 and a receiving module 820.
  • the receiving module 820 may be configured to: receive the first message frame.
  • the first message frame includes wake-up information indicating the wake-up status of one or more connections.
  • the wake-up information is used to identify the wake-up corresponding connection to receive the buffered downlink data frame.
  • the processing module 810 may be configured to wake up the corresponding connection according to the wake-up information.
  • the wake-up information may include a wake-up identification bit.
  • the wake-up information may include: a first connection identifier corresponding to each connection.
  • the wake-up information may include: a second connected group identification corresponding to the connected group.
  • the wake-up information may be included in the MAC header portion of the first message frame.
  • the first message frame may be a data frame and/or a management frame.
  • the wake-up information may have the format described in Table 1 or Table 2, and repeated descriptions are omitted here for brevity.
  • the communication device 800 shown in FIG. 8 only includes the processing module 810 and the receiving module 820, it is understood that the communication device 800 may also include more or less other modules.
  • the communication device 800 may also include a transmission module (not shown).
  • the sending module may be configured to send a second message frame to notify the access point that the corresponding connection is woken up.
  • the sending module may be further configured to send a fourth message frame, wherein the fourth message frame includes dormancy information for identifying dormancy states of one or more connections.
  • the communication device 800 shown in FIG. 8 may perform the communication method described with reference to FIG. 4 , and repeated descriptions are omitted here for brevity.
  • the communication device 800 shown in FIG. 8 can also perform the communication method described with reference to FIG. 5 .
  • the processing module 810 may be configured to determine the third message frame.
  • the third message frame includes sleep information for indicating the sleep state of one or more connections.
  • the sending module (not shown) may be configured to send the third message frame.
  • the hibernation information may include a power management identification.
  • the dormancy information may include a third connection identification corresponding to each connection.
  • the dormancy information may include a fourth connected group identification corresponding to the connected group.
  • the processing module 810 may be configured to set the power management flag to a third value to flag the need to enter a power saving mode.
  • the processing module 810 may be configured to set, in the third connection identifier or the fourth connection group identifier, the identifier corresponding to the connection that needs to sleep to a fourth value to identify that the corresponding connection is in the power saving mode.
  • the dormancy information may have the format described in Table 3 or Table 4, and repeated descriptions are omitted here for brevity.
  • the same device supporting multi-connection communication can communicate through any connection in the multi-connection, so that other connections enter the power saving mode or obtain buffered downlink data frames.
  • the communication device described with reference to FIG. 7 and FIG. 8 can realize wake/sleep setting under multiple connections and transmission of buffered data, which reduces signaling overhead, enables devices to communicate under multiple connections, and improves network throughput.
  • the embodiments of the present disclosure further provide an electronic device, the electronic device includes a processor and a memory; wherein, the memory stores machine-readable instructions (or may referred to as a "computer program"); a processor for executing machine-readable instructions to implement the methods described with reference to FIGS. 2 to 6 .
  • the memory stores machine-readable instructions (or may referred to as a "computer program”); a processor for executing machine-readable instructions to implement the methods described with reference to FIGS. 2 to 6 .
  • Embodiments of the present disclosure also provide a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the method described with reference to FIG. 2 to FIG. 6 is implemented.
  • a processor may be used to implement or execute various exemplary logical blocks, modules and circuits described in connection with the present disclosure, for example, a CPU (Central Processing Unit, central processing unit), general processing device, DSP (Digital Signal Processor, data signal processor), ASIC (Application Specific Integrated Circuit, application-specific integrated circuit), FPGA (Field Programmable Gate Array, Field Programmable Gate Array) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof.
  • a processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.
  • the memory may be, for example, ROM (Read Only Memory), RAM (Random Access Memory), EEPROM (Electrically Erasable Programmable Read Only Memory) Read memory), CD-ROM (Compact Disc Read Only Memory, CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), magnetic disk storage media or other magnetic A storage device, or any other medium that can be used to carry or store program code in the form of instructions or data structures and that can be accessed by a computer, without limitation.
  • ROM Read Only Memory
  • RAM Random Access Memory
  • EEPROM Electrically Erasable Programmable Read Only Memory
  • CD-ROM Compact Disc Read Only Memory
  • CD-ROM Compact Disc Read Only Memory
  • optical disc storage including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.
  • magnetic disk storage media or other magnetic A storage device, or any other medium that can be used to carry or store program code in the form of instructions or data structures and that can

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Abstract

本公开提供一种多连接下的通信方法和通信设备。所述通信方法包括：确定第一消息帧，所述第一消息帧包括指示一个或多个连接的唤醒状态的唤醒信息，其中所述唤醒信息用于标识唤醒对应的连接接收缓存的下行数据帧；发送所述第一消息帧。本公开的示例实施例提供的技术方案可以减小信令开销，使得设备在多连接下进行通信，提高网络吞吐量。

Description

一种多连接下的通信方法和通信设备 技术领域
本公开涉及通信领域，更具体地说，涉及一种多连接下的通信方法和通信设备。
背景技术
在2018年5月份，IEEE(Institute of Electrical and Electronic Engineers，电气与电子工程师协会)成立了SG(study group)IEEE802.11be来研究下一代(IEEE802.11a/b/g/n/ac)Wi-Fi技术，所研究的范围为：320MHz的带宽传输、多个频段的聚合及协同等，期望能够相对于现有的IEEE802.11ax标准提高至少四倍的速率以及吞吐量，其主要的应用场景为视频传输、AR(Augmented Reality，增强现实)、VR(Virtual Reality，虚拟现实)等。
多个频段的聚合及协同是指设备间同时在2.4GHz、5.8GHz及6-7GHz的频段下进行通信，对于设备间同时在多个频段下通信需要定义新的MAC(Media Access Control，介质访问控制)机制来进行管理。此外，在IEEE802.11be中还期望能够支持低时延传输。
在IEEE802.11be标准的讨论中，将支持的最大带宽为320MHz(160MHz+160MHz)，此外还可能会支持240MHz(160MHz+80MHz)及IEEE802.11ax标准中所支持的带宽。
在现有标准中，站点(STA：Station)与接入点(AP：Access Point)协商后可以进入省电模式(也可以称为休眠模式)。即，在站点和AP在进行数据通信过程中，站点接收或发送完最后一个数据帧后，回复给AP的响应帧或发送的最后一个数据帧帧的MAC头的电源管理(power management)子域设置为“1”，标识站点进入省电模式。
在现有标准中，进入省电状态的站点获得数据的方式可以通过侦听信 标(beacon)帧中的TIM(传输指示位图，Traffic Indication Map)消息帧获得，但是这些机制仅能够应用在单连接下。
在IEEE802.11be标准中，STA与AP之间可以存在多个连接进行通信。由于上述描述的机制仅适用单连接下的操作，因此不能够适用于多连接通信的情况。
发明内容
本公开的各方面将至少解决上述问题和/或缺点。本公开的各种实施例提供以下技术方案：
本公开的一方面提供一种多连接下的通信方法。所述通信方法包括：确定第一消息帧，其中，所述第一消息帧包括指示一个或多个连接的唤醒状态的唤醒信息，其中所述唤醒信息用于标识唤醒对应的连接接收缓存的下行数据帧；发送所述第一消息帧。
根据本公开的示例实施例，所述唤醒信息包括唤醒标识位。
根据本公开的示例实施例，所述唤醒信息包括：与各个连接相对应的第一连接标识。
根据本公开的示例实施例，所述唤醒信息包括：与连接的组相对应的第二连接组标识。
根据本公开的示例实施例，所述唤醒信息包括在所述第一消息帧的MAC帧头部分中。
根据本公开的示例实施例，所述通信方法还包括：响应于在处于休眠状态的连接下缓存了下行数据帧，将所述唤醒标识位设置为第一值，以指示存在需要唤醒的连接。
根据本公开的示例实施例，所述通信方法还包括：在所述第一连接标识或所述第二连接组标识中，将与需要被唤醒的连接对应的标识设置为第二值，以用于唤醒对应的连接。
根据本公开的示例实施例，所述通信方法还包括：在被唤醒的连接下，接收第二消息帧；响应于接收到所述第二消息帧，通过被唤醒的连接发送缓存的下行数据帧。
根据本公开的示例实施例，所述第一消息帧为数据帧和/或管理帧。
本公开的一方面提供一种通信方法。所述通信方法包括：接收第一消息帧，所述第一消息帧包括指示一个或多个连接的唤醒状态的唤醒信息，其中所述唤醒信息用于标识唤醒对应的连接接收缓存的下行数据帧；根据唤醒信息，唤醒相应的连接。
根据本公开的示例实施例，所述通信方法还包括：发送第四消息帧，其中，所述第四消息帧包括用于标识一个或多个连接的休眠状态的休眠信息。
本公开的一方面提供一种通信方法。所述通信方法包括：确定第三消息帧，其中，所述第三消息帧包括用于指示一个或多个连接的休眠状态的休眠信息，发送第三消息帧。
根据本公开的示例实施例，所述休眠信息包括电源管理标识。
根据本公开的示例实施例，所述休眠信息包括：与各个连接相对应的第三连接标识。
根据本公开的示例实施例，所述休眠信息包括：与连接的组相对应的第四连接组标识。
根据本公开的示例实施例，所述通信方法还包括：将所述电源管理标识设置为第三值，以标识需要进入省电模式。
根据本公开的示例实施例，所述通信方法还包括：在所述第三连接标识或所述第四连接组标识中，将与需要休眠的连接对应的标识设置为第四值，以标识对应的连接处于省电模式。
本公开的一方面提供一种多连接下的通信设备，所述通信设备包括：处理模块，被配置为：确定第一消息帧，其中，所述第一消息帧包括指示一个或多个连接的唤醒状态的唤醒信息，其中所述唤醒信息用于标识唤醒对应的连接接收缓存的下行数据帧；发送模块，被配置为：发送所述第一消息帧。
本公开的一方面提供一种多连接下的通信设备，所述通信设备包括：接收模块，被配置为：接收第一消息帧，所述第一消息帧包括指示一个或多个连接的唤醒状态的唤醒信息，其中所述唤醒信息用于标识唤醒对应的 连接接收缓存的下行数据帧；处理模块，被配置为：根据唤醒信息，唤醒相应的连接。
根据本公开的示例实施例提供了一种电子设备。所述电子设备包括存储器、处理器及存储在所述存储器上并在所述处理器上可运行的计算机程序。所述处理器执行所述计算机程序时实现如上所述的方法。
根据本公开的示例实施例提供了一种计算机可读存储介质。所述计算机可读存储介质上存储有计算机程序。该计算机程序被处理器执行时实现如上所述的方法。
本公开的示例实施例提供的技术方案可以减小信令开销，使得设备在多连接下进行通信，提高网络吞吐量。
附图说明
通过参照附图详细描述本公开的示例实施例，本公开实施例的上述以及其他特征将更加明显，其中：
图1是示出多连接下的通信场景的示例性示图。
图2是示出根据本公开的示例实施例的通信方法的流程图。
图3是示出根据本公开的示例实施例的通信方法的流程图。
图4是示出根据本公开的示例实施例的另一通信方法的流程图。
图5是示出根据本公开的示例实施例的另一通信方法的流程图。
图6是示出根据本公开的示例实施例的交互通信的示例性示图。
图7是示出根据本公开的示例实施例的通信设备的框图。
图8是示出根据本公开的示例实施例的另一通信设备的框图。
具体实施方式
提供以下参照附图的描述，以帮助全面理解由所附权利要求及其等同物限定的本公开的各种实施例。本公开的各种实施例包括各种具体细节，但是这些具体细节仅被认为是示例性的。此外，为了清楚和简洁，可以省略对公知的技术、功能和构造的描述。
在本公开中使用的术语和词语不限于书面含义，而是仅被发明人所使用， 以能够清楚和一致的理解本公开。因此，对于本领域技术人员而言，提供本公开的各种实施例的描述仅是为了说明的目的，而不是为了限制的目的。
应当理解，除非上下文另外清楚地指出，否则这里使用的单数形式“一”、“一个”、“所述”和“该”也可以包括复数形式。应该进一步理解的是，本公开中使用的措辞“包括”是指存在所描述的特征、整数、步骤、操作、元件和/或组件，但是并不排除存在或添加一个或多个其他特征、整数、步骤、操作、元件、组件和/或它们的组。
将理解的是，尽管术语“第一”、“第二”等在本文中可以用于描述各种元素，但是这些元素不应受这些术语的限制。这些术语仅用于将一个元素与另一个元素区分开。因此，在不脱离示例实施例的教导的情况下，下面讨论的第一元素可以被称为第二元素。
应该理解，当元件被称为“连接”或“耦接”到另一元件时，它可以直接连接或耦接到其他元件，或者也可以存在中间元件。此外，这里使用的“连接”或“耦接”可以包括无线连接或无线耦接。这里使用的术语“和/或”或者表述“……中的至少一个/至少一者”包括一个或多个相关列出的项目的任何和所有组合。
除非另外定义，这里使用的所有术语(包括技术术语和科学术语)，具有与本公开所属领域中的普通技术人员的一般理解相同的意义。
图1是示出多连接下的通信场景的示例性示图。
在无线局域网中，一个基本服务集(BSS)可以由AP以及与AP通信的一个或多个站点构成。一个基本服务集可以通过其AP连接到分配系统DS(Distribution System)，然后再接入到另一个基本服务集，构成扩展的服务集ESS(Extended Service Set)。
AP是用于无线网络的无线交换机，也是无线网络的核心。AP设备可以用作无线基站，主要是用来连接无线网络及有线网络的桥接器。利用这种接入点AP，可以整合有线及无线网络。
AP可以包括软件应用和/或电路，以使无线网络中的其他类型节点可以通过AP与无线网络外部及内部进行通信。作为示例，AP可以是配备有Wi-Fi(Wireless Fidelity，无线保真)芯片的终端设备或网络设备。
作为示例，站点(STA)可以包括但不限于：蜂窝电话、智能电话、可穿戴设备、计算机、个人数字助理(PDA)、个人通信系统(PCS)设备、个人信息管理器(PIM)、个人导航设备(PND)、全球定位系统、多媒体设备、物联网(IoT)设备等。
在本公开的示例实施例中，AP和STA可以支持多连接的设备MLD(multi-link device，多连接设备)，例如，可以被分别表示为AP MLD和Non-AP MLD。为了便于描述，在下文中，主要描述一个AP与一个STA在多连接下进行通信的示例，然而，本公开的示例实施例不限于此。
在图1中，仅作为示例性的，AP MLD可以表示支持多连接通信功能的接入点，Non-AP MLD可以表示支持多连接通信功能的站点。参照图1，AP MLD可以工作在三个连接下，如图1所示的AP1、AP2和AP3，Non-AP MLD也可以工作在三个连接下，如图1所示的STA1、STA2和STA3。虽然在图1中示出了，AP MLD与Non-AP MLD之间存在三个连接，但是本公开不限于此，它们之间可以存在更多或更少的连接。
在图1的示例中，假设AP1与STA1通过对应的第一连接Link 1进行通信，类似地，AP2和AP3分别通过第二连接Link 2和第三连接Link 3与STA2和STA3进行通信。此外，Link 1至Link 3可以是不同频率下的多个连接，例如，2.4GHz、5GHz、6GHz下的连接等。此外，在每个连接下可以存在多个信道。然而，应该理解的是，图1所示的通信场景仅是示例性的，本发明构思不限于此，例如，AP MLD可以连接到多个Non-AP MLD，或者在每个连接下，AP可以与多个其他类型的站点进行通信。
在IEEE802.11be标准中，对设备进入省电模式及获得缓存数据帧可能要求：在特定连接下发送用于指示其自身或其他连接处于休眠状态的指示消息，或者在特定连接下发送用于指示其他连接处于唤醒状态的指示消息。
如上所述，由于现有标准中的上述机制只适用在单连接下的操作，而对于IEEE802.11be标准下的省电模式及获得缓存数据帧没有具体的描述和定义。因此，本公开的示例实施例进行了重新定义，以能够实现多连接下的唤醒、休眠和/或缓存数据帧的获取。
图2和图3是示出根据本公开的示例实施例的通信方法的流程图。作为 示例，图2和图3可以是在接入点或接入点侧的控制设备中执行的通信方法。
参照图2，在步骤210中，确定第一消息帧。例如，可以通过AP在其支持的多个连接中的一个连接下确定第一消息帧。为了便于描述，假设多个连接可以是图1所示的Link 1至Link 3。在一个示例中，如果Link1及Link3下的STA1及STA3处于休眠状态，而在Link2下的STA2处于唤醒状态，并且在Link1及Link3下AP为STA1及STA3缓存了数据，则在Link2下确定第一消息帧。在另一示例中，如果STA1、STA2、STA3属于同一Non-AP MLD，并且都处于休眠状态，则在最先转换到唤醒状态下的连接确定第一消息帧。在另一示例中，如果Link1至Link3均处于休眠状态，并且均未被唤醒时，第一消息帧可以是缓存的数据帧。在一个示例实施例中，可以根据AP的通信能力、当前的通信环境来确定第一消息帧。在另一示例实施例中，可以直接获得预先存储或预先写入的第一消息帧。其中，第一消息帧可以是数据帧或触发帧。
根据示例实施例，第一消息帧可以包括指示一个或多个连接的唤醒状态的唤醒信息。一个或多个连接的唤醒状态可以表示各个连接是需要唤醒还是不需要唤醒。在一个示例中，第一消息帧中的唤醒信息可以用于标识唤醒对应的连接接收缓存的下行数据帧。也就是说，第一消息帧可以携带有唤醒信息，该唤醒信息用于唤醒处于休眠状态下的连接，以接收缓存的下行数据帧。在一个示例中，如果AP在处于休眠状态的连接下缓存了下行数据帧，则需要唤醒相应的连接。在另一示例中，AP可以根据每个连接的负载及上下行接入时延选择性地唤醒相应的连接，或者将负载高接入时延高的连接下的缓存数据转换到负载低接入时延低的连接下，因此需要唤醒这样的负载低接入时延低的连接，这些可以是AP的内部操作。
例如，AP MLD可以与Non-AP MLD进行了多连接建立，并且Non-AP MLD在某些连接下进入了省电模式。在下文中，省电模式和休眠状态可以互换地使用。当AP MLD与Non-AP MLD在一个连接下进行通信，且在其他连接下缓存了Non-AP MLD的下行数据帧时，由于其他连接处于省电模式而无法接收缓存的下行数据帧，因此需要将其唤醒。
例如，AP MLD与Non-AP MLD可以在一个连接(激活且处于苏醒状态的连接)下进行数据通信，并且在AP MLD在某个/某些连接下为Non-AP MLD 缓存了下行数据帧，由于这个/这些连接处于省电模式，所以AP需将其唤醒，那么可以在激活且处于苏醒状态的连接下发送的数据帧和/或管理帧的帧头部分携带唤醒信息，以唤醒这个/这些连接下的STA。例如，结合图1，当在第一连接Link 1下进行数据通信时(即，第一连接Link 1是激活且处于苏醒状态的连接)，处于省电模式的连接可以是图1所示的第二连接Link 2和第三连接Link 3，那么可以在第一连接Link 1下发送的第一消息帧中携带唤醒信息，以唤醒第二连接Link 2和第三连接Link 3。
根据本公开的示例实施例，第一消息帧可以是数据帧和/或管理帧。然而，本公开不限于此，根据通信环境，第一消息帧可以是任何其他类型的帧。此外，唤醒信息可以包括在第一消息帧的MAC帧头部分中。也就是说，既可以在数据帧中也可以在管理帧中设置唤醒信息。此外，对于全部连接均处于休眠(doze)的情况，可以在缓存的数据帧的帧头部分携带唤醒信息，即，第一消息帧对应于缓存的数据帧。
根据示例实施例，唤醒信息的格式可以如下面的表格1所示。
表格1
Wake up Link1 Link2 Link3 Link4 ……
参照表格1，第一消息帧中的唤醒信息可以包括唤醒标识位(Wake up)。此外，唤醒信息可以包括与各个连接相对应的第一连接标识(例如，Link 1至Link 4)。当有连接需要唤醒时，唤醒标识位wake up可以被设置为“1”(其他情况设置为“0”)，需要唤醒的连接所对应的第一连接标识被设置为“1”，无需唤醒的连接所对应的第一连接标识设置为“0”。根据实施例，当AP在处于休眠状态的连接下缓存了下行数据帧时，则需要唤醒处于休眠状态的连接。根据另一示例，AP可以根据每个连接的负载及上下行接入时延选择性地唤醒相应的连接，或者将负载高接入时延高的连接下的缓存数据转换到负载低接入时延低的连接下，因此需要唤醒这样的负载低接入时延低的连接。然而，这仅是示例性的，本公开不限于此。
例如，唤醒标识位Wake up和每个第一连接标识可以包括多个比特，并 且唤醒标识位Wake up可以表示是否存在需要唤醒的连接和/或每个连接的唤醒状态，而每个第一连接标识可以表示相应连接的标识号。在该示例中，唤醒标识位Wake up的最高有效位可以表示是否存在需要唤醒的连接，其他位分别与各个连接的唤醒状态相对应，每个第一连接标识可以表示相应连接的标识号。
此外，虽然在表格1中示出了唤醒信息可以包括唤醒标识位Wake up以及第一连接标识(例如，Link 1至Link 4)，但是本公开不限于此。例如，唤醒信息可以仅包括唤醒标识位Wake up和第一连接标识之一。当唤醒信息仅包括唤醒标识位Wake up时，可以利用多比特数据来表示唤醒标识位Wake up，并且每个比特可以对应于相应的连接。例如，唤醒标识位Wake up可以被设置为01100，其表示需要唤醒第三连接和第四连接唤醒，而不需要唤醒其他连接。
此外，表格1所示的第一连接标识可以包括AP与STA之间的全部连接的标识，也可以仅包括需要被唤醒的连接的标识。
在一个实施例中，第一消息帧可以是缓存的数据帧，并且缓存的数据帧中可以包括more data(更多数据)域。在此实施例中，more data域可以和表格1所示的唤醒信息一起来指示唤醒状态。例如，可以将more data设置为1以标识还会有数据传输，将唤醒标识位设置为1并且在第一连接标识中设置需要唤醒的连接，从而唤醒信息与more data域一起使得进入省电模式的连接进入苏醒状态，以获得缓存的下行数据帧。
在另一示例实施例中，唤醒信息的格式可以如下面的表格2所示。
表格2
Wake up Link set ……
与表格1不同，表格2所示的唤醒信息可以包括与连接的组相对应的第二连接组标识(Link set)。在一个示例中，可以将AP MLD与Non-AP MLD之间的全部连接划分为不同的组，在表格2中可以以一个或多个组的形式来表示各个连接的唤醒状态。在其他示例中，可以仅将需要被唤醒的连接作为一个或多个组，并分别以Link set的形式来表示。在一个示例中，可以将图1中的Link 1至Link 3设置为一个组，并且该组在表格2中对应于连接组Link set，如果需要唤醒Link 2和Link 3，则表格2所示的第二连接组标识Link set可以被设置为011并且唤醒标识位Wake up可以被设置为1。在另一示例中，由于第一连接Link set 1不需要被唤醒，因此可以仅将需要唤醒的Link 2和Link 3设置一个组并标识在Link set中。
将理解的是，上述描述仅是示例性的，本公开不限于此。类似于表格1的描述，表格2的唤醒信息也可以仅包括唤醒标识位Wake up和第二连接标识组之一。为了简明，在此省略重复的描述。
参照图2，在步骤230中，发送第一消息帧。在一个示例中，可以在AP MLD与Non-AP MLD之间的多个连接中的未处于休眠状态的连接(苏醒的连接)下发送第一消息帧，并且可以根据第一消息帧中的唤醒信息来唤醒对应的连接，以接收缓存的数据帧。在另一示例中，如果所有连接都处于休眠状态，则在最先转换到唤醒状态下的连接下发送第一消息帧。在另一示例中，如果所有连接都处于休眠状态，并且所有连接都未被唤醒，则第一消息帧可以对应于缓存的数据帧，并且唤醒信息包括在缓存的数据帧中，因此可以在相应的连接主动苏醒时，直接在苏醒的连接下传输缓存的数据帧及包括在其中的唤醒信息。
参照图3，根据本公开的示例实施例的通信方法可以包括步骤211：响应于在处于休眠状态的连接下缓存了下行数据帧，将唤醒标识位设置为第一值，以指示存在需要唤醒的连接。
根据本公开的示例实施例的通信方法可以包括步骤212：在第一连接标识或第二连接组标识中，将与需要被唤醒的连接对应的标识设置为第二值，以用于唤醒对应的连接。
在图3中，设置唤醒标识位的步骤211以及设置第一连接标识或第二连接组标识的步骤212可以是确定第一消息帧(例如，图2的步骤210)的子步骤。此外，参照表格1和表格2所描述的上述内容，图3中的步骤211和步骤212可以合并或者省略其中之一。作为示例，第一值和第二值可以如上所述对应于“1”，然而，这仅是示例性的，本公开不限于此，也可以采用其他任何可行的方式。
在图3的步骤230中，发送第一消息帧。图3的步骤230可以与图2的步骤230相似，为了简明，省略重复的描述。
参照图3，在步骤250中，可以接收第二消息帧。具体地说，可以在被唤醒的连接下，接收第二消息帧。第二消息帧可以是对发送的唤醒信息的响应帧，用于告知AP相应的连接被唤醒。作为示例，第二消息帧可以是Null-Poll(空-轮询)帧。即，当Non-AP MLD接收到第一消息帧时，根据第一消息帧中的唤醒信息，唤醒相应的连接，并且可以在相应的连接下发送Null-Poll帧，因此AP可以在被唤醒的连接下接收第二消息帧(例如，Null-Poll帧)。
在步骤270中，AP可以响应于接收到第二消息帧，通过被唤醒的连接发送缓存的下行数据帧。接收到第二消息帧表示相应的连接已经被唤醒，则可以通过其发送相应的缓存数据。
图4是示出根据本公开的示例实施例的另一通信方法的流程图。图4可以是在站点中或位于站点侧的任意控制设备中执行的通信方法。
参照图4，在步骤410中，可以接收第一消息帧。第一消息帧包括指示一个或多个连接的唤醒状态的唤醒信息，唤醒信息可以用于标识唤醒对应的连接接收缓存的下行数据帧。
根据示例实施例，唤醒信息包括在第一消息帧的MAC帧头部分中。
根据示例实施例，唤醒信息可以包括唤醒标识位。
根据示例实施例，唤醒信息可以包括：与各个连接相对应的第一连接标识。
根据示例实施例，唤醒信息包括：与连接的组相对应的第二连接组标识。
也就是说，步骤410接收到的第一消息帧中的唤醒信息可以具有上述表格1和表格2所示的格式，为了简明，在此省略重复的描述。
在步骤430中，可以根据唤醒信息，唤醒相应的连接。例如，可以根据唤醒信息获取需要被唤醒的连接的相关信息，并且将需要被唤醒的连接从省电模式转换为苏醒模式。
在步骤450中，可以在被唤醒的相应连接下发送第二消息帧。第二消 息帧可以是通知接入点相应的连接已经被唤醒的响应帧，例如，Null-Poll帧。
图4所示的步骤仅是示例性的，本公开不限于此。例如，图4所示的通信方法还可以包括：发送第四消息帧，其中，第四消息帧包括用于标识一个或多个连接的休眠状态的休眠信息。在此描述的第四消息帧可以与下面将要参照图5描述的休眠信息(如表格3和表格4)相似。
图5是示出根据本公开的示例实施例的另一通信方法的流程图。
参照图5，在步骤510中，可以确定第三消息帧。第三消息帧可以包括用于指示一个或多个连接的休眠状态的休眠信息。也就是说，第三消息帧可以包括一个或多个连接中的每个连接是否处于休眠状态的信息。
在一个示例中，第三消息帧可以是反馈帧、数据帧和/或管理帧，休眠信息可以包括在第三消息帧的MAC帧头部分中。在另一示例中，第三消息帧可以是一种新定义的新类型的管理帧，其携带有一个或多个连接的休眠信息。
根据示例实施例，休眠信息的格式可以如下面的表格3所示。
表格3
Power management Link1 Link2 Link3 Link4 ……
参照表格3，第三消帧中的休眠信息可以包括电源管理标识(Power management)。此外，休眠信息可以包括：与各个连接相对应的第三连接标识(Link 1至Link 4)。
在一个示例中，在接收完数据或多连接完成建立后，Non-AP MLD的某些连接需进入省电模式，可以采用表格3所示的信息位(在任意连接下发送)。如果需要进入省电模式，则电源管理标识(Power management)子域可以被设置为“1”(其他情况被设置为“0”)，需要进入省电模式的连接所对应的第三连接标识被设置为“1”，无需进入省电模式的连接所对应的第三连接标识被设置为“0”。然而，这仅是示例性的，本公开不限于此。
根据实施例，表格3所示的休眠信息的第三连接标识可以包括AP与STA之间的全部连接的标识，也可以仅包括需要进入省电模式的连接的标识。
例如，电源管理标识(Power management)子域和每个第三连接标识可以包括多个比特，并且电源管理标识(Power management)子域可以表示是否存在需要进入省电模式的连接和/或每个连接的休眠状态，而每个第三连接标识可以表示相应连接的标识号。在此示例中，电源管理标识(Power management)子域的最高有效位可以表示是否存在需要进入省电模式的连接，电源管理标识的其他位分别与各个连接的休眠状态相对应，每个第三连接标识可以表示相应连接的标识号。
此外，虽然在表格3中示出了休眠信息可以包括电源管理标识(Power management)以及第三连接标识(例如，Link 1至Link 4)，但是本公开不限于此。例如，休眠信息可以仅包括电源管理标识(Power management)和第三连接标识之一。当休眠信息仅包括电源管理标识(Power management)时，可以利用多比特数据来表示电源管理标识(Power management)，并且每个比特可以对应于相应的连接。例如，电源管理标识(Power management)可以被设置为011，其表示第一连接和第二连接进入省电模式。
在另一示例实施例中，休眠信息的格式可以如下面的表格4所示。
表格4
Power management Link set ……
与表格3不同，表格4所示的休眠信息可以包括与连接的组相对应的第四连接组标识(Link set)。在一个示例中，可以将AP MLD与Non-AP MLD之间的全部连接划分为不同的组，在表格4中可以以组的形式来表示各个连接的休眠状态。在其他示例中，可以仅将需要被唤醒的连接作为一个或多个组，并分别以Link set的形式来表示。例如，可以将图1中的Link 1和Link 2设置为一个组，并且该组在表格4中对应于第四连接组标识Link set 1，图1中的第三连接Link 3可以对应于第四连接组标识Link set 2。在Link set 1中的较低的位对应于Link 1的情况下，如果Link set 1设置为11并且Link set 2设置为0，则表示 第一连接Link 1和第二连接Link 2将进入省电模式，而第三连接Link 3不进入省电模式。在该示例中，第三连接Link 3不进入省电模式，因此在表格4所示的休眠信息中也可以不包括Link set 2。类似于表格3所述，表格4的休眠信息也可以仅包括电源管理标识(Power management)和第四连接标识组之一。为了简明，在此省略重复的描述。
根据示例实施例，图5所示的通信方法还可以包括：将电源管理标识设置为第三值，以标识需要进入省电模式。也就是说，可以通过电源管理标识来指示存在需要进入省电模式的连接。
根据示例实施例，图5所示的通信方法还可以包括：在第三连接标识或第四连接组标识中，将与需要休眠的连接对应的标识设置为第四值，以标识对应的连接处于省电模式。
上述设置电源管理标识的步骤以及设第三连接标识或第四连接组标识的步骤可以是确定第三消息帧(例如，图5的步骤510)的子步骤。作为示例，如参照表格3和表格4所描述的，第三值和第四值可以对应于“1”，然而，这仅是示例性的，本公开不限于此，也可以采用其他任何可行的方式。
在步骤530中可以发送确定的第三消息帧，从而通知接入点多个连接的休眠状态。
例如，Non-AP MLD可以在多个连接中的任意连接下的反馈帧或数据帧的MAC帧头携带休眠信息，用于标识其他连接或本连接(发送第三消息帧的连接)进入省电模式。
图5所示的通信方法可以在执行图2和图3的唤醒后向AP发送或更新休眠状态，或者可以在多连接建立之后或者在其他任意合适时刻主动向AP上报休眠状态等。在一个示例中，如果是在多连接建立之后主动向AP上报休眠状态，则可以在任意连接下发送第三消息帧。在另一示例中，如果是在唤醒之后向AP发送或更新休眠状态，则可以在唤醒的连接下发送第三消息帧。
作为示例，图6示出了在多连接建立之后STA向AP主动上报休眠状态的交互通信的示例。
为了便于描述，在图6中，假设STA与AP之间存在如图1所示的三个连接，并且在第一连接Link 1下进行互相通信，第二连接Link 2和第三连接Link 3在多连接建立完成之后处于省电模式。
参照图6，在步骤S610中，可以在STA与AP之间建立多连接。例如，可以通过广播信标(beacon)帧的方式来建立多连接，为了避免模糊本公开的技术构思，本公开省略建立多连接的具体描述。
在步骤S620中，STA可以在第一连接Link 1下向AP发送第三消息帧，第三消息帧可以包括表格3或表格4所示的休眠信息。在此，休眠信息可以标识第二连接Link 2和第三连接Link 3处于省电模式。
当AP在第二连接Link 2和第三连接Link 3下为STA缓存了下行数据帧时，在步骤S630中，AP可以向STA发送第一消息帧，并且第一消息帧可以包括表格1和表格2所示的唤醒信息。例如，唤醒信息可以用于唤醒第二连接Link 2和第三连接Link 3，以向对应的站点STA 2和STA 3传输缓存的数据帧。
当第二连接Link 2和第三连接Link 3被唤醒时，在步骤S640和步骤S660中，STA可以分别在第二连接Link 2和第三连接Link 3发送第二消息帧，以通知AP相应的连接被唤醒。
当AP接收到第二消息帧时，在步骤S650和步骤S670中，AP可以分别在第二连接Link 2和第三连接Link 3发送缓存的下行数据帧。
图6所示的步骤S640至步骤S670可以并行地或串行地执行。此外，图6所示的步骤S610至步骤S670可以以任何其他合适的顺序来执行。
在参照图2至图6所描述的通信方法中，同一个支持多连接通信的设备能够通过多连接中的任意连接通信，使得其他连接进入省电模式或获得缓存下行数据帧。此外，参照图2至图6所描述的通信方法可以实现多连接下的唤醒/休眠的设置以及缓存数据的传输，减小了信令开销，使得设备在多连接下进行通信，提高网络吞吐量。
图7是示出根据本公开的示例实施例的通信设备700的框图。
通信设备700可以包括处理模块710和发送模块720。
处理模块710可以被配置为确定第一消息帧。第一消息帧可以包括指 示一个或多个连接的唤醒状态的唤醒信息。唤醒信息可以用于标识唤醒对应的连接接收缓存的下行数据帧。发送模块720可以被配置为：发送第一消息帧。
根据实施例，唤醒信息可以包括唤醒标识位。
根据实施例，唤醒信息可以包括：与各个连接相对应的第一连接标识。
根据实施例，唤醒信息可以包括：与连接的组相对应的第二连接组标识。
根据实施例，唤醒信息可以包括在第一消息帧的MAC帧头部分中。
根据实施例，第一消息帧可以为数据帧和/或管理帧。
根据实施例，处理模块710可以被配置为：响应于在处于休眠状态的连接下缓存了下行数据帧，将唤醒标识位设置为第一值，以指示存在需要唤醒的连接。
根据实施例，处理模块710可以被配置为：在第一连接标识或第二连接组标识中，将与需要被唤醒的连接对应的标识设置为第二值，以用于唤醒对应的连接。
虽然图7示出的通信设备700仅包括处理模块710和发送模块720，然而可以理解，通信设备700还可以包括更多或更少的其他模块。例如，通信设备700还可以包括接收模块(未示出)。
根据实施例，接收模块可以被配置为：在被唤醒的连接下，接收第二消息帧。在此实施例中，响应于接收到第二消息帧，发送模块720通过被唤醒的连接发送缓存的下行数据帧。
图7所示的通信设备700可以执行参照图2和图3所描述的通信方法，为了简明，在此省略重复的描述。
图8是示出根据本公开的示例实施例的另一通信设备800的框图。
参照图8，通信设备800可以包括处理模块810和接收模块820。
接收模块820可以被配置为：接收第一消息帧。第一消息帧包括指示一个或多个连接的唤醒状态的唤醒信息。唤醒信息用于标识唤醒对应的连接接收缓存的下行数据帧。处理模块810可以被配置为：根据唤醒信息，唤醒相应的连接。
根据实施例，唤醒信息可以包括唤醒标识位。
根据实施例，唤醒信息可以包括：与各个连接相对应的第一连接标识。
根据实施例，唤醒信息可以包括：与连接的组相对应的第二连接组标识。
根据实施例，唤醒信息可以包括在第一消息帧的MAC帧头部分中。
根据实施例，第一消息帧可以为数据帧和/或管理帧。
唤醒信息可以具有表格1或表格2所述的格式，为了简明，在此省略重复的描述。
虽然图8示出的通信设备800仅包括处理模块810和接收模块820，然而可以理解，通信设备800还可以包括更多或更少的其他模块。例如，通信设备800还可以包括发送模块(未示出)。
根据实施例，发送模块可以被配置为：发送第二消息帧，以通知接入点相应的连接被唤醒。根据实施例，发送模块还可以被配置为：发送第四消息帧，其中，所述第四消息帧包括用于标识一个或多个连接的休眠状态的休眠信息。
图8所示的通信设备800可以执行参照图4所描述的通信方法，为了简明，在此省略重复的描述。
此外，图8所示的通信设备800还可以执行参照图5所描述的通信方法。具体地说，处理模块810可以被配置为确定第三消息帧。第三消息帧包括用于指示一个或多个连接的休眠状态的休眠信息。发送模块(未示出)可以被配置为发送第三消息帧。
根据实施例，休眠信息可以包括电源管理标识。
根据实施例，休眠信息可以包括与各个连接相对应的第三连接标识。
根据实施例，休眠信息可以包括与连接的组相对应的第四连接组标识。
根据实施例，处理模块810可以被配置为将电源管理标识设置为第三值，以标识需要进入省电模式。
根据实施例，处理模块810可以被配置为在第三连接标识或第四连接组标识中，将与需要休眠的连接对应的标识设置为第四值，以标识对应的连接处于省电模式。
休眠信息可以具有表格3或表格4所述的格式，为了简明，在此省略重复的描述。
在图7和图8所描述的通信设备中，同一个支持多连接通信的设备能够通过多连接中的任意连接通信，使得其他连接进入省电模式或获得缓存下行数据帧。参照图7和图8所描述的通信设备可以实现多连接下的唤醒/休眠的设置以及缓存数据的传输，减小了信令开销，使得设备在多连接下进行通信，提高网络吞吐量。
基于与本公开的实施例所提供的方法相同的原理，本公开的实施例还提供了一种电子设备，该电子设备包括处理器和存储器；其中，存储器中存储有机器可读指令(也可以称为“计算机程序”)；处理器，用于执行机器可读指令以实现参照图2至图6描述的方法。
本公开的实施例还提供了一种计算机可读存储介质，该计算机可读存储介质上存储有计算机程序，计算机程序被处理器执行时实现参照图2至图6描述的方法。
在示例实施例中，处理器可以是用于实现或执行结合本公开内容所描述的各种示例性的逻辑方框、模块和电路，例如，CPU(Central Processing Unit，中央处理器)、通用处理器、DSP(Digital Signal Processor，数据信号处理器)、ASIC(Application Specific Integrated Circuit，专用集成电路)、FPGA(Field Programmable Gate Array，现场可编程门阵列)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合、DSP和微处理器的组合等。
在示例实施例中，存储器可以是，例如，ROM(Read Only Memory，只读存储器)、RAM(Random Access Memory，随机存取存储器)、EEPROM(Electrically Erasable Programmable Read Only Memory，电可擦可编程只读存储器)、CD-ROM(Compact Disc Read Only Memory，只读光盘)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的程序代码并能够由计算机存取的任何其 他介质，但不限于此。
应该理解的是，虽然附图的流程图中的各个步骤按照箭头的指示依次显示，但是这些步骤并不是必然按照箭头指示的顺序依次执行。除非本文中有明确的说明，这些步骤的执行并没有严格的顺序限制，其可以以其他的顺序执行。此外，附图的流程图中的至少一部分步骤可以包括多个子步骤或者多个阶段，这些子步骤或者阶段并不必然是在同一时刻执行完成，而是可以在不同的时刻执行，其执行顺序也不必然是依次进行，而是可以与其他步骤或者其他步骤的子步骤或者阶段的至少一部分轮流或者交替地执行。
虽然已经参照本公开的某些实施例示出和描述了本公开，但是本领域技术人员将理解，在不脱离本公开的范围的情况下，可以在形式和细节上进行各种改变。因此，本公开的范围不应被限定为受限于实施例，而是应由所附权利要求及其等同物限定。

Claims (25)

  1. 一种多连接下的通信方法，所述通信方法包括：
    确定第一消息帧，其中，所述第一消息帧包括指示一个或多个连接的唤醒状态的唤醒信息，其中所述唤醒信息用于标识唤醒对应的连接接收缓存的下行数据帧；
    发送所述第一消息帧。
  2. 根据权利要求1所述的通信方法，其中，所述唤醒信息包括唤醒标识位。
  3. 根据权利要求1所述的通信方法，其中，所述唤醒信息包括：与各个连接相对应的第一连接标识。
  4. 根据权利要求1所述的通信方法，其中，所述唤醒信息包括：与连接的组相对应的第二连接组标识。
  5. 根据权利要求1至4中的任一项所述的通信方法，其中，所述唤醒信息包括在所述第一消息帧的MAC帧头部分中。
  6. 根据权利要求2所述的通信方法，其中，所述通信方法还包括：
    响应于在处于休眠状态的连接下缓存了下行数据帧，将所述唤醒标识位设置为第一值，以指示存在需要唤醒的连接。
  7. 根据权利要求3或4所述的通信方法，其中，所述通信方法还包括：
    在所述第一连接标识或所述第二连接组标识中，将与需要被唤醒的连接对应的标识设置为第二值，以用于唤醒对应的连接。
  8. 根据权利要求7所述的通信方法，其中，所述通信方法还包括：
    在被唤醒的连接下，接收第二消息帧；
    响应于接收到所述第二消息帧，通过被唤醒的连接发送缓存的下行数据帧。
  9. 根据权利要求1所述的通信方法，其中，所述第一消息帧为数据帧和/或管理帧。
  10. 一种多连接下的通信方法，所述通信方法包括：
    接收第一消息帧，所述第一消息帧包括指示一个或多个连接的唤醒状态的唤醒信息，其中所述唤醒信息用于标识唤醒对应的连接接收缓存的下行数据帧；
    根据唤醒信息，唤醒相应的连接。
  11. 根据权利要求10所述的方法，其中，其中，所述唤醒信息包括唤醒标识位。
  12. 根据权利要求10所述的通信方法，其中，所述唤醒信息包括：与各个连接相对应的第一连接标识。
  13. 根据权利要求10所述的通信方法，其中，所述唤醒信息包括：与连接的组相对应的第二连接组标识。
  14. 根据权利要求10至13中的任一项所述的通信方法，其中，所述唤醒信息包括在所述第一消息帧的MAC帧头部分中。
  15. 根据权利要求10所述的通信方法，其中，所述通信方法还包括：发送第四消息帧，其中，所述第四消息帧包括用于标识一个或多个连接的休眠状态的休眠信息。
  16. 一种多连接下的通信方法，其中，所述通信方法包括：
    确定第三消息帧，其中，所述第三消息帧包括用于标识一个或多个连接的休眠状态的休眠信息，
    发送第三消息帧。
  17. 根据权利要求16所述的通信方法，其中，所述休眠信息包括电源管理标识。
  18. 根据权利要求16所述的通信方法，其中，所述休眠信息包括：与各个连接相对应的第三连接标识。
  19. 根据权利要求16所述的通信方法，其中，所述休眠信息包括：与连接的组相对应的第四连接组标识。
  20. 根据权利要求17所述的通信方法，其中，所述通信方法还包括：
    将所述电源管理标识设置为第三值，以标识需要进入省电模式。
  21. 根据权利要求18或19所述的通信方法，其中，所述通信方法还包括：在所述第三连接标识或所述第四连接组标识中，将与需要休眠的连接对应的标识设置为第四值，以标识对应的连接处于省电模式。
  22. 一种多连接下的通信设备，所述通信设备包括：
    处理模块，被配置为：确定第一消息帧，其中，所述第一消息帧包括指示一个或多个连接的唤醒状态的唤醒信息，其中所述唤醒信息用于标识唤醒对应的连接接收缓存的下行数据帧；
    发送模块，被配置为：发送所述第一消息帧。
  23. 一种多连接下的通信设备，所述通信设备包括：
    接收模块，被配置为：接收第一消息帧，所述第一消息帧包括指示一个或多个连接的唤醒状态的唤醒信息，其中所述唤醒信息用于标识唤醒对应的连接接收缓存的下行数据帧；
    处理模块，被配置为：根据唤醒信息，唤醒相应的连接。
  24. 一种电子设备，包括存储器、处理器及存储在所述存储器上并在所述处理器上可运行的计算机程序，其中，所述处理器执行所述计算机程序时实现权利要求1-21任一项所述的方法。
  25. 一种计算机可读存储介质，其中，所述计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现权利要求1-21任一项所述的方法。
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