WO2021052254A1 - 数据传输方法、装置和系统 - Google Patents

数据传输方法、装置和系统 Download PDF

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Publication number
WO2021052254A1
WO2021052254A1 PCT/CN2020/114777 CN2020114777W WO2021052254A1 WO 2021052254 A1 WO2021052254 A1 WO 2021052254A1 CN 2020114777 W CN2020114777 W CN 2020114777W WO 2021052254 A1 WO2021052254 A1 WO 2021052254A1
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Prior art keywords
data transmission
transmission channel
lbt
cot
configuration information
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PCT/CN2020/114777
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English (en)
French (fr)
Inventor
李新彩
赵亚军
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ZTE Corp
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ZTE Corp
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Priority to US17/760,732 priority Critical patent/US12363727B2/en
Priority to EP20864420.3A priority patent/EP4033837A4/en
Priority to KR1020227011637A priority patent/KR102809965B1/ko
Publication of WO2021052254A1 publication Critical patent/WO2021052254A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094Indication of how sub-channels of the path are allocated
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/231Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2602Signal structure
    • H04L27/26025Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signalling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/08Testing, supervising or monitoring using real traffic
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0808Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0014Three-dimensional division
    • H04L5/0023Time-frequency-space
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
    • H04L5/0046Determination of the number of bits transmitted on different sub-channels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • H04W74/006Transmission of channel access control information in the downlink, i.e. towards the terminal

Definitions

  • the 5th Generation (5th Generation, 5G) of mobile communications will meet the business needs of humans in the fields of residence, work, medical care, and education. Large capacity and high data transmission efficiency are important features of 5G.
  • 5G can not only be used to improve the quality of voice and video communication, but also provide enhancements for a variety of new services such as the Internet of Things (IoT) and autonomous driving. .
  • IoT Internet of Things
  • autonomous driving the spectrum resources used for communication are limited, and most of the low-frequency spectrum has been used by communication services. Therefore, the subsequent evolution can only consider higher frequency bands.
  • the high frequency band usually uses high subcarrier spacing (SCS) to combat multipath fading.
  • SCS subcarrier spacing
  • This application provides a data transmission method, device, and system for improving data transmission efficiency.
  • the embodiment of the present application provides a data transmission method, which is applied to a base station, and includes:
  • the transmission resource configuration information includes configuration information of k RUs, each RU includes N subcarriers and M consecutive time slots, and k, N, and M are integers greater than or equal to 1;
  • the embodiment of the present application provides a data transmission method, which is applied to a UE, and includes:
  • At least one data transmission channel is uploaded and transmitted in the k RUs indicated by the transmission resource configuration information.
  • the embodiment of the present application provides a data transmission device, which is set in a base station, and includes:
  • the embodiment of the present application provides a data transmission device, which is set in a UE, and includes:
  • the receiving module is configured to receive downlink control signaling sent by the base station, where the downlink control signaling is used to schedule at least one data transmission channel to be transmitted on k RUs indicated by transmission resource configuration information, and the transmission resource configuration information includes k RU configuration information, each RU includes N subcarriers and M consecutive time slots, and k, N, and M are integers greater than or equal to 1;
  • the embodiment of the present application provides a data transmission system, including a base station and a UE;
  • FIG. 1 is a flowchart of a data transmission method provided by an embodiment
  • Figure 4 is a schematic diagram of a TB being scheduled for CBG transmission in an RU
  • Figure 5 is a schematic diagram of retransmitting CBG on a new time domain after LBT fails
  • Figure 6 is a schematic diagram of retransmitting CBG on a new frequency domain after LBT fails
  • Figure 7 is a schematic diagram of retransmitting CBG in the direction of LBT success after LBT fails
  • FIG. 9 is a schematic diagram of an LBT provided by an embodiment of the application.
  • FIG. 10 is a schematic diagram of another LBT provided by an embodiment of the application.
  • FIG. 11 is a schematic diagram of another LBT provided by an embodiment of the application.
  • FIG. 12 is a flowchart of another data transmission method provided by an embodiment
  • FIG. 13 is a schematic structural diagram of a data transmission device provided by an embodiment
  • FIG. 14 is a schematic structural diagram of another data transmission device provided by an embodiment
  • 15 is a schematic structural diagram of a data transmission system provided by an embodiment
  • FIG. 17 is a schematic structural diagram of a UE provided by an embodiment.
  • Spectrum resources are important resources in wireless communication systems. Most of the low-frequency spectrum resources are occupied by communication services. Therefore, the evolution of wireless communication systems can only take into account higher frequency bands.
  • High-frequency bands such as above 60GHz, usually use high SCS to combat multipath fading, such as 240kHz, 480kHz, 960kHz, 1920kHz, etc., but the higher the SCS, the shorter the corresponding time slot. For example, with respect to the SCS of 15 kHz, one time slot corresponding to 1 ms, and the length of one time slot corresponding to the SCS of 480 kHz is only 0.03125 ms. If the data scheduling transmission is still performed based on the original time slot granularity, the data transmission efficiency will be very low. Therefore, the embodiment of the present application introduces a larger scheduling unit, that is, a resource unit (RU), to schedule data transmission, thereby improving data transmission efficiency.
  • a resource unit RU
  • FIG. 1 is a flowchart of a data transmission method provided by an embodiment. As shown in FIG. 1, the method provided in this embodiment includes the following steps.
  • the data transmission method provided in this embodiment is applied to a base station in a wireless communication system.
  • the base station performs transmission resource scheduling in the wireless communication system, and indicates the used transmission resource for the uplink or downlink data transmission channel.
  • a new data scheduling unit RU is used.
  • Each RU includes N subcarriers and M consecutive time slots. k, N, and M are integers greater than or equal to 1, that is, each RU is A data scheduling unit composed of multiple basic transmission units in the time domain and frequency domain. Among them, the values of N and M are determined according to SCS, or according to the attributes and time of the scheduled carrier, or according to the type of service.
  • the base station can configure the number of consecutive time slots and the number of subcarriers included in each RU through a predefined method or a radio resource control (Radio Resource Control, RRC) signaling configuration method.
  • RRC Radio Resource Control
  • the new data scheduling unit RU can also be used.
  • the transmission resource configuration information includes the configuration information of k RUs, and the k RUs may be independently configured or within a channel occupation time (Channel Occupancy Time, COT).
  • the slot boundaries between different SCSs are aligned within 1ms.
  • the number of consecutive time slots and the number of subcarriers included in different SCS are shown in Table 1 below.
  • Step S1020 Scheduling at least one data transmission channel to be transmitted on the k RUs indicated by the transmission resource configuration information through downlink control signaling.
  • the base station can schedule at least one data transmission channel to transmit on the k RUs indicated by the transmission resource configuration information through downlink control signaling.
  • Downlink control signaling is, for example, Downlink Control Information (DCI).
  • the data transmission channel scheduled by this DCI includes any of the following: Physical Uplink Shared Channel (PUSCH), Physical Downlink Shared Channel (Physical Uplink Shared Channel, PUSCH) Downlink Shared Channel (PDSCH), Physical Uplink Control Channel (PUCCH), Physical Downlink Control Channel (PUCCH), Synchronization Signal Block (SSB).
  • the DCI can schedule one PUSCH/PDSCH, or multiple PUSCH/PDSCH, or one PUSCH/PDSCH repeated transmission.
  • one RU can transmit one PUSCH/PDSCH, or one PUSCH/PDSCH can transmit multiple RUs. Since the transmission resource configuration information includes the configuration information of k RUs, scheduling at least one data transmission channel through downlink control signaling to transmit on the k RUs indicated by the transmission resource configuration information can be used in high-frequency scenarios without time limitation. The size of the slot can flexibly schedule the transmission of the data transmission channel, thereby improving the data transmission efficiency.
  • the data transmission method provided in this embodiment is applied to a base station.
  • transmission resource configuration information is configured.
  • the transmission resource configuration information includes configuration information of k RUs.
  • Each RU includes N subcarriers and M consecutive time slots, k, N and M are integers greater than or equal to 1, and then at least one data transmission channel is scheduled to be transmitted on the k RUs indicated by the transmission resource configuration information through downlink control signaling, which can be used in high-frequency scenarios without time limitation.
  • the size of the slot can flexibly schedule the transmission of the data transmission channel, thereby improving the data transmission efficiency.
  • FIG. 2 is a flowchart of another data transmission method provided in an embodiment. As shown in FIG. 2, the method provided in this embodiment includes the following steps.
  • Step S2010 Configure transmission resource configuration information.
  • the transmission resource configuration information includes configuration information of k resource units RU.
  • Each RU includes N subcarriers and M consecutive time slots, and k, N, and M are greater than or equal to 1. Integer.
  • Step S2020 Send the configured transmission resource configuration information to the UE.
  • the transmission resource configuration information further includes at least one of the following information: configuration information of an RU in a COT; information on the type of data transmission channel access; and space of the data transmission channel Direction information.
  • Each PUSCH or PDSCH may be transmitted through multiple beam directions at a certain time, or may be transmitted through different beam directions at different times.
  • the station base station or User Equipment (UE)
  • LBT Listen Before Talk
  • the base station needs to send transmission resource configuration information to the UE.
  • the transmission resource configuration information includes at least one of the following information: configuration information of an RU in a COT; information about the type of data transmission channel access; and information about the spatial direction of the data transmission channel.
  • different RU scheduling granularities may be used for unlicensed carriers.
  • the length of time occupied by the previous preset number of RUs in a COT is less than the length of time occupied by other RUs in the COT.
  • the number of time slots that the previous RU in a COT can contain is relatively small, or the scheduling granularity is relatively dense.
  • the number of time slots that the scheduled RU contains is relatively large, and the scheduling granularity is relatively sparse.
  • the number of time slots that the scheduled RU can contain is small.
  • the base station implements the above non-uniform resource RU scheduling through the following method.
  • the base station configures the end of the slot end boundary of each RU in the COT through RRC signaling. For example, it can be configured in a slot bitmap mode. In this way, different RUs contain different numbers of slots, that is, some The RU contains 2 time slots (slots), some RUs contain 3 slots, and some RUs contain 6 slots.
  • the base station can configure the RU pattern in a certain COT through RRC signaling 000100000101 so that the first RU occupies 4 slots, the second RU has 6 slots, and the third RU has 2 slots.
  • Figure 3 is a schematic diagram of the configuration of an RU in a COT.
  • the short-time domain resource of the intermediate RU2 is designed to be reserved for the data scheduling transmission of the emergency and sudden ultra-high reliability and ultra-low latency communication (Ultra Reliable & Low Latency Communication, URLLC) service.
  • the base station can indicate the absolute index and number of the starting RU occupied by the scheduled PUSCH/PDSCH through the DCI.
  • the scheduling unit when the scheduling unit is RU, the units of some related timing parameters also need to be modified.
  • the definition of related timing quantities such as the timing K0 between DCI and scheduled PDSCH, PDSCH and UE feedback Hybrid Automatic Repeat reQuest Acknowledgement (HARQ-ACK) corresponding timing K1, DCI and scheduled
  • the timing amount K2 between PUSCHs is all indicated in units of RU instead of the original slot.
  • the number indicated in the DCI that is, the value of K1 is the number of RUs from the RU containing the PDSCH to the RU containing the PUCCH.
  • each CBG occupies one or two time slots.
  • a demodulation reference signal (Demodulation Reference Signal, DMRS)
  • one RU is also used as an allocation unit, that is, multiple slots can share the DMRS.
  • the following method is used to schedule retransmission for the CBG that cannot be sent due to the LBT failure of the first TB that is scheduled.
  • the base station schedules TB1 of the UE to perform data transmission on RU1, and different CBGs of TB1 occupy different time slots of RU1.
  • the UE may not necessarily succeed in LBT before CBG1 transmission.
  • the CBG in front of the TB scheduled by the unlicensed carrier cannot be sent because of the LBT, it will be transferred to the back RU for transmission.
  • it can be a predefined way, that is, it is specified that the CBG that cannot be sent is sent in n+2 RUs.
  • Figure 5 is a schematic diagram of retransmitting CBG on a new time domain after LBT fails. Among them, due to the failure of the LBT of TB1 and the unsuccessful transmission of CBG1 and CBG2 of TB1, the CBG1 and CBG2 of TB1 will be retransmitted in the time slot after TB2.
  • the base station pre-schedules multiple CBGs to transmit at multiple frequency domain locations, and then transfers the failed CBGs to the subband locations where LBT is successful for transmission, as shown in Figure 6, which shows the new frequency domain after LBT fails.
  • FIG. 7 is a schematic diagram of retransmitting CBG in the direction where the LBT succeeds after the LBT fails.
  • CBG2 and CBG3 can be retransmitted in the beam direction of CBG1 where the LBT is successful.
  • Step S2030 scheduling at least one data transmission channel to transmit on the k RUs indicated by the transmission resource configuration information through downlink control signaling.
  • the base station will provide the LBT mode executed before sending the data transmission channel in the DCI of the scheduling data transmission channel.
  • the base station can indicate one of the above four types of LBT by passing 2 bits in the DCI.
  • the direction of the directional LBT is the same as the beam direction of each scheduled data transmission, or it covers the beam direction of the data transmission. Specifically, it is determined by spatial information parameters or reference signal resources.
  • the beam directions of these multiple RUs are the same.
  • FIG. 8 is a schematic diagram of LBT when DCI schedules multiple data transmission channels in the same direction.
  • the base station When the multiple PUSCH transmission beam directions are different, that is, the base station provides multiple SRI information in the DCI, and the station performs an omnidirectional LBT once, and after success, continuously sends data in multiple beam directions.
  • the base station may pre-schedule multiple beam directions, and the UE executes LBT in multiple beam directions in sequence according to priority, and which beam is successfully transmitted.
  • different stations may perform LBT in multiple modes.
  • the site can use one of the following methods to determine each COT.
  • the LBT method executed before the second data transfer.
  • Method 1 The base station performs an omnidirectional random back-off LBT at the beginning of COT, initiates a COT after success, and then uses the directional non-random back-off LBT before data transmission by the base station or the UE under the base station in the COT .
  • Method 2 The base station performs an omnidirectional random backoff LBT at the beginning of the COT, initiates a COT after success, and then uses the directional random backoff LBT before data transmission by the base station or the base station's subordinate UE in the COT.
  • Method 3 The base station or UE performs a random back-off directional LBT at the beginning of the COT. After success, if the beam direction of the subsequent data to be transmitted in the COT is the same as the first beam transmission direction of the COT or is first If the direction covered by the second execution of the LBT is covered, the LBT without random backoff is executed. If the transmission direction is different from the first beam, the directional LBT with random backoff is executed.
  • Figure 9 is a schematic diagram of an LBT provided by an embodiment of the application.
  • the base station successfully initiates a COT to send downlink data by performing a random backoff LBT in the beam1 direction, and then subsequently in the COT,
  • the UE and the base station under the base station can perform non-random back-off LBT before data transmission because the beam direction is similar to the beam direction of the first LBT or is covered by the first beam direction.
  • Manner 4 The base station or the UE executes the LBT mode of directed non-random backoff at the beginning and after the COT.
  • FIG. 10 is a schematic diagram of another LBT provided by an embodiment of the application.
  • the above methods 1 to 5 apply to the same site, just like a UE or a base station, or a situation where the UE and the base station share COT, that is to say, the site where an LBT successfully initiates a COT may not be the same site as the following sites , It can be a base station and its subordinate UEs, or a UE and the base station it belongs to share a COT.
  • the above-mentioned direction for the directional LBT is the same as the beam direction of each scheduled data transmission, or covers the beam direction of the data transmission. Specifically, it is determined by spatial information parameters or reference signal resources.
  • the following method can be used to handle the case where one PUSCH/PDSCH is sent through multiple beam directions at the same time.
  • the base station may schedule multiple beam directions for transmission, specifically including the following two methods:
  • Method 1 These multiple beam directions are the beams pre-scheduled for transmission by the base station.
  • beam direction the UE sends the PUSCH in the end one or two beam directions can be selected for transmission based on the LBT result of each beam. For example, when the base station configures multiple SRS resources for the UE, there is priority information. When the UE successfully performs LBT in multiple beam directions, it selects the beam with higher priority for transmission, and the base station performs the processing according to the configured priority. Detection.
  • the base station configures three SRS resources for the UE and sorts them according to the priority of SRS1, SRS2, and SRS3.
  • the UE performs LBT in the beam direction corresponding to the three SRS resources at the same time or respectively. If there is only one beam direction LBT If successful, the PUSCH will be sent in this direction. If two or three LBTs are successful, the UE will send it in the beam direction with the higher priority in the order of priority. If the UE succeeds in LBT in the beam direction corresponding to the SRS1 and SRS2 resources, the UE chooses to send the scheduled PUSCH in the beam direction corresponding to SRS1.
  • Method 2 The base station schedules different CBGs of a TB to different layers, and each layer has different beam directions. For example, a TB contains 4 CBGs, and finally CBG1 is sent in beam1 through coding and interleaving layer mapping, and CBG2 is in beam2. To send, CBG3 is sent in beam3, and CBG4 is sent in beam4.
  • FIG. 11 is a schematic diagram of another LBT provided by an embodiment of the application.
  • the UE performs LBT on the four beams.
  • the LBT in the transmission direction of CBG1 and CBG3 succeeds, but the LBT in the direction of CBG2 and CBG4 fails.
  • the UE only sends CBG1 and CBG3, and the subsequent base station can schedule CBG2 and CBG4 retransmissions. If CBG1 and CBG3 are transmitted correctly, there is no need to reschedule.
  • the beam direction LBT mode mentioned in this embodiment is one of the LBT modes described in the above mode one to the fifth mode, and the specific predefined rule used is the same as that described in the above mode one to the fifth mode.
  • the method provided by this embodiment solves the problem that the data transmission of the entire TB cannot be correctly decoded if the execution of LBT in a certain beam direction fails in a high-frequency unlicensed carrier scenario.
  • FIG. 12 is a flowchart of another data transmission method provided in an embodiment. As shown in FIG. 12, the method provided in this embodiment includes the following steps.
  • Step S12010 Receive downlink control signaling sent by the base station, where the downlink control signaling is used to schedule at least one data transmission channel to be transmitted on k resource units RU indicated by the transmission resource configuration information, and the transmission resource configuration information includes k RU configuration information, each RU includes N subcarriers and M consecutive time slots, and k, N, and M are integers greater than or equal to 1.
  • the data transmission method provided in this embodiment is applied to a UE in a wireless communication system.
  • the UE accepts the scheduling of transmission resources by the base station in the wireless communication system, determines the transmission resources used by the uplink or downlink data transmission channel, and completes the transmission or reception of the uplink or downlink data transmission channel.
  • Step S12020 According to the scheduling of the downlink control signaling, at least one data transmission channel is transmitted on the k RUs indicated by the transmission resource configuration information.
  • the data transmission method provided in this embodiment is the processing performed on the UE side in the embodiment shown in FIG. 1.
  • the specific implementation method and technical effects have been described in detail in the embodiment shown in FIG. 1, and will not be repeated here. .
  • the method before the receiving the downlink control signaling sent by the terminal, the method further includes:
  • the transmission resource configuration information further includes at least one of the following information:
  • the spatial direction information of the data transmission channel is the spatial direction information of the data transmission channel.
  • the receiving downlink control signaling sent by the terminal includes:
  • the time length occupied by the previous preset number of RUs in the COT is less than the time length occupied by other RUs in the COT.
  • the configuration information of the RU in the one COT is determined according to any of the following methods:
  • SCS scheduled carrier attribute and time, service type.
  • different CBGs of a TB in a data transmission channel are transmitted in different time slots of an RU.
  • the transmission resource configuration information further includes:
  • Configuration parameter information of the data transmission channel related to the configuration information of the RU includes any of the following: timing information of the data transmission channel related to the configuration information of the RU, and data transmission channel related to the configuration information of the RU The time domain resource allocation information and the codebook information of the data transmission channel related to the configuration information of the RU.
  • the data transmission channel includes any one of the following:
  • PUSCH PUSCH, PDSCH, PUCCH, PDCCH, SSB.
  • the channel access type information includes at least one of the following:
  • Omnidirectional LBT with random back-off omnidirectional LBT with non-random back-off
  • directional LBT with random back-off directional LBT with non-random back-off
  • the direction of the directional LBT is the same as the spatial direction of the data transmission channel scheduled by the downlink control signaling, or the direction of the directional LBT covers the The spatial direction of the data transmission channel scheduled by the downlink control signaling.
  • the spatial directions of the data transmission channels are the same;
  • the access type information of the data transmission channel includes:
  • a directional LBT is performed once in the spatial direction of the at least one data transmission channel.
  • the spatial directions of the data transmission channels are different;
  • the access type information of the data transmission channel includes:
  • an omnidirectional LBT is performed once in the spatial direction of the at least one data transmission channel.
  • the data transmission channel when transmitted on multiple RUs of a COT, it further includes: determining the channel access by any of the following methods Type information:
  • the base station performs an omni-directional LBT with random back-off before sending the data transmission channel for the first time in the COT. If the omni-directional LBT with random back-off is successful, the base station or UE is in the COT Perform directional LBT or not perform LBT before the subsequent data transmission channel is sent;
  • the base station performs an omnidirectional LBT with random back-off before sending the data transmission channel for the first time in the COT. If the omni-directional LBT with random back-off is successful, the data subsequently sent in the COT.
  • the spatial direction of the transmission channel is the same as the spatial direction of the first data transmission channel or is covered by the direction of the omnidirectional LBT with random backoff, a non-random return is performed before the subsequent data transmission channel in the COT. LBT withdrawn or not executed, otherwise, LBT with random fallback is executed before the data transmission channel subsequently sent in the COT;
  • the base station or the UE executes a directional LBT with non-random backoff every time before sending a data transmission channel in the COT;
  • the UE performs an omnidirectional LBT with random back-off before sending the data transmission channel for the first time in the COT. If the omni-directional LBT with random back-off is successful, the base station or UE will follow-up in the COT. Use non-random back-off directional LBT before sending the data transmission channel;
  • the base station adopts omnidirectional LBT in the COT, otherwise the base station performs directional LBT for each data transmission channel.
  • the direction of the directional LBT with random backoff or the directional LBT with non-random backoff is the same as the spatial direction of the data transmission channel scheduled each time Or cover the spatial direction of each scheduled data transmission channel.
  • the spatial direction information is determined by spatial information parameters or reference signal resources.
  • the data transmission channel transmitting on the k RUs indicated by the transmission resource configuration information includes:
  • the data transmission channel transmitting on the k RUs indicated by the transmission resource configuration information includes:
  • Different CBGs of one TB of one data transmission channel are scheduled to different layers, and the different CBGs are scheduled to be sent in the spatial direction where the LBT of the data transmission channel is successful.
  • the data transmission channel transmitting on the k RUs indicated by the transmission resource configuration information includes:
  • the CBG scheduled to be sent in the spatial direction where the LBT fails is retransmitted on the subband where the LBT is successful in the COT.
  • FIG. 13 is a schematic structural diagram of a data transmission device provided by an embodiment. As shown in FIG. 13, the data transmission device provided in this embodiment is set in a base station, and includes:
  • the configuration module 131 is configured to configure transmission resource configuration information.
  • the transmission resource configuration information includes configuration information of k RUs, each RU includes N subcarriers and M consecutive time slots, and k, N, and M are greater than or equal to 1.
  • the scheduling module 132 is configured to schedule at least one data transmission channel to transmit on the k RUs indicated by the transmission resource configuration information through downlink control signaling.
  • the data transmission device provided in this embodiment is used to implement the data transmission method of the embodiment shown in FIG. 1.
  • the implementation principle and technical effect of the data transmission device provided in this embodiment are similar, and will not be repeated here.
  • FIG. 14 is a schematic structural diagram of another data transmission device provided by an embodiment. As shown in FIG. 14, the data transmission device provided in this embodiment is set in a UE, and includes:
  • the receiving module 141 is configured to receive downlink control signaling sent by a base station, where the downlink control signaling is used to schedule at least one data transmission channel to be transmitted on k RUs indicated by transmission resource configuration information, and the transmission resource configuration information includes k Each RU includes N subcarriers and M consecutive time slots, and k, N, and M are integers greater than or equal to 1.
  • the transmission module 142 is configured to be scheduled in all locations according to the downlink control signaling. At least one data transmission channel is transmitted on the k RUs indicated by the transmission resource configuration information.
  • the data transmission device provided in this embodiment is used to implement the data transmission method of the embodiment shown in FIG. 12, and the implementation principles and technical effects of the data transmission device provided in this embodiment are similar, and will not be repeated here.
  • FIG. 15 is a schematic structural diagram of a data transmission system provided by an embodiment.
  • the data transmission system provided by this embodiment includes: a base station 151 and a UE 152.
  • the base station 151 includes the data transmission device as shown in FIG. 13, and the UE 152 includes the data transmission device as shown in FIG. 14.
  • FIG. 16 is a schematic structural diagram of a base station provided by an embodiment.
  • the base station includes a processor 161, a memory 162, a transmitter 163, and a receiver 164; the number of processors 161 in the base station may be one or There are multiple.
  • One processor 161 is taken as an example in FIG. 16; the processor 161 and the memory 162 in the base station may be connected through a bus or other methods. In FIG. 16, the connection through a bus is taken as an example.
  • the memory 162 can be configured to store software programs, computer-executable programs, and modules, such as program instructions/modules (for example, data The configuration module 131 and the scheduling module 132 in the transmission device).
  • the processor 161 runs the software programs, instructions, and modules stored in the memory 162, so that at least one functional application and data processing of the base station is implemented, that is, the above-mentioned data transmission method is realized.
  • the memory 162 may mainly include a program storage area and a data storage area.
  • the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the terminal, and the like.
  • the memory 162 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices.
  • the transmitter 163 is a module or a combination of devices capable of transmitting radio frequency signals into space, for example, a combination of radio frequency transmitters, antennas, and other devices.
  • the receiver 164 is a module or a combination of devices capable of receiving radio frequency signals from space, for example, a combination of radio frequency receivers, antennas, and other devices.
  • FIG. 17 is a schematic structural diagram of a UE provided by an embodiment.
  • the UE includes a processor 171, a memory 172, a transmitter 173, and a receiver 174; the number of processors 171 in the UE may be one or There are multiple, one processor 171 is taken as an example in FIG. 17; the processor 171 and the memory 172 in the UE may be connected through a bus or other methods, and the connection through a bus is taken as an example in FIG. 17.
  • the memory 172 can be configured to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the data transmission method in the embodiment of FIG. 12 of this application (for example, in a data transmission device).
  • the processor 171 runs the software programs, instructions, and modules stored in the memory 172 to implement at least one functional application and data processing of the UE, that is, to implement the above-mentioned data transmission method.
  • the memory 172 may mainly include a program storage area and a data storage area.
  • the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the base station.
  • the memory 172 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices.
  • the transmitter 173 is a module or a combination of devices capable of transmitting radio frequency signals into space, for example, a combination of radio frequency transmitters, antennas, and other devices.
  • the receiver 174 is a module or a combination of devices capable of receiving radio frequency signals from space, for example, a combination of radio frequency receivers, antennas, and other devices.
  • the embodiment of the present application also provides a storage medium containing computer-executable instructions.
  • the computer-executable instructions are used to execute a data transmission method when executed by a computer processor.
  • the method includes: configuring transmission resource configuration information, and the transmission
  • the resource configuration information includes the configuration information of k RUs, and each RU includes N subcarriers and M consecutive time slots, where k, N, and M are integers greater than or equal to 1, and at least one data transmission channel is scheduled through downlink control signaling. Transmission on the k RUs indicated by the transmission resource configuration information.
  • the embodiment of the present application also provides a storage medium containing computer-executable instructions.
  • the computer-executable instructions are used to execute a data transmission method when executed by a computer processor.
  • the method includes: receiving downlink control signaling sent by a base station,
  • the downlink control signaling is used to schedule at least one data transmission channel to be transmitted on k RUs indicated by transmission resource configuration information.
  • the transmission resource configuration information includes configuration information of k RUs, and each RU includes N subcarriers and M Consecutive time slots, where k, N, and M are integers greater than or equal to 1, and transmit at least one data transmission channel on k RUs indicated by the transmission resource configuration information according to the scheduling of the downlink control signaling.
  • user terminal encompasses any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable web browser, or a vehicle-mounted mobile station.
  • the various embodiments of the present application can be implemented in hardware or dedicated circuits, software, logic or any combination thereof.
  • some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor, or other computing device, although the present application is not limited thereto.
  • Computer program instructions can be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or written in any combination of one or more programming languages Source code or object code.
  • ISA Instruction Set Architecture
  • the block diagram of any logic flow in the drawings of the present application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions.
  • the computer program can be stored on the memory.
  • the memory can be of any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), optical Memory devices and systems (Digital Video Disc (DVD) or Compact Disc (CD), etc..
  • Computer-readable media can include non-transitory storage media.
  • the data processor can be any suitable for the local technical environment.
  • Types such as but not limited to general-purpose computers, special-purpose computers, microprocessors, digital signal processors (Digital Signal Processing, DSP), application specific integrated circuits (ASICs), programmable logic devices (Field-Programmable Gate Array) , FPGA) and processors based on multi-core processor architecture.
  • DSP Digital Signal Processing
  • ASICs application specific integrated circuits
  • FPGA field-Programmable Gate Array

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Abstract

本申请提出一种数据传输方法、装置和系统,一种数据传输方法包括:配置传输资源配置信息,所述传输资源配置信息包括k个RU的配置信息,每个RU包括N个子载波和M个连续时隙,k、N和M为大于或等于1的整数;通过下行控制信令调度至少一个数据传输信道在所述传输资源配置信息指示的k个RU上传输。

Description

数据传输方法、装置和系统
本申请要求在2019年09月16日提交中国专利局、申请号为201910871822.X的中国专利申请的优先权,该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及无线通信网络,例如涉及一种数据传输方法、装置和系统。
背景技术
第5代移动通信(5th Generation,5G)将满足人类的居住、工作、医疗和教育等领域的业务需求。大容量和高的数据传输效率是5G的重要特点,5G不仅可以用于语音和视频通信质量的提升,同时也为物联网(Internet of Things,IoT)和自动驾驶等多种新服务提供了增强。但通信所使用的频谱资源是有限的,低频的大部分频谱已经被通信业务应用,因此后续演进只能考虑到更高的频段进行。
高频频段通常采用高的子载波间隔(SubCarrier Spacing,SCS)以对抗多径衰落,SCS越高对应的一个时隙就会越短,如果仍然基于原来的时隙粒度进行数据调度传输,则数据传输效率会非常低。
发明内容
本申请提供一种数据传输方法、装置和系统,用于提高数据传输效率。
本申请实施例提供一种数据传输方法,应用于基站,包括:
配置传输资源配置信息,所述传输资源配置信息包括k个RU的配置信息,每个RU包括N个子载波和M个连续时隙,k、N、M为大于或等于1的整数;
通过下行控制信令调度至少一个数据传输信道在所述传输资源配置信息指示的k个RU上传输。
本申请实施例提供一种数据传输方法,应用于UE,包括:
接收基站发送的下行控制信令,所述下行控制信令用于调度至少一个数据传输信道在传输资源配置信息指示的k个RU上传输,所述传输资源配置信息包括k个RU的配置信息,每个RU包括N个子载波和M个连续时隙,k、N、M为大于或等于1的整数;
根据所述下行控制信令的调度在所述传输资源配置信息指示的k个RU上传 输至少一个数据传输信道。
本申请实施例提供一种数据传输装置,设置于基站,包括:
配置模块,设置为配置传输资源配置信息,所述传输资源配置信息包括k个RU的配置信息,每个RU包括N个子载波和M个连续时隙,k、N、M为大于或等于1的整数;
调度模块,设置为通过下行控制信令调度至少一个数据传输信道在所述传输资源配置信息指示的k个RU上传输。
本申请实施例提供一种数据传输装置,设置于UE,包括:
接收模块,设置为接收基站发送的下行控制信令,所述下行控制信令用于调度至少一个数据传输信道在传输资源配置信息指示的k个RU上传输,所述传输资源配置信息包括k个RU的配置信息,每个RU包括N个子载波和M个连续时隙,k、N、M为大于或等于1的整数;
传输模块,设置为根据所述下行控制信令的调度在所述传输资源配置信息指示的k个RU上传输至少一个数据传输信道。
本申请实施例提供一种数据传输系统,包括基站和UE;
所述基站包括任一种设置于基站的数据传输装置;
所述UE包括任一种设置于UE的数据传输装置。
附图说明
图1为一实施例提供的一种数据传输方法的流程图;
图2为一实施例提供的另一种数据传输方法的流程图;
图3为一个COT内RU的配置示意图;
图4为一个TB在RU内被调度CBG传输的示意图;
图5为LBT失败后在新的时域上重新传输CBG的示意图;
图6为LBT失败后在新的频域上重新传输CBG的示意图;
图7为LBT失败后在LBT成功的方向上重新传输CBG的示意图;
图8为DCI调度多个方向相同的数据传输信道时的LBT示意图;
图9为本申请实施例提供的一种LBT的示意图;
图10为本申请实施例提供的另一种LBT的示意图;
图11为本申请实施例提供的另一种LBT的示意图;
图12为一实施例提供的另一种数据传输方法的流程图;
图13为一实施例提供的一种数据传输装置的结构示意图;
图14为一实施例提供的另一种数据传输装置的结构示意图;
图15为一实施例提供的一种数据传输系统的结构示意图;
图16为一实施例提供的一种基站的结构示意图;
图17为一实施例提供的一种UE的结构示意图。
具体实施方式
下文中将结合附图对本申请的实施例进行详细说明。
频谱资源是无线通信系统中的重要资源,低频的频谱资源大部分被通信业务所占用,因此无线通信系统的演进只能考虑到更高的频段进行。高频频段,例如60GHz以上,通常都采用高的SCS以对抗多径衰落,例如240kHz、480kHz、960kHz、1920kHz等,但SCS越高对应的一个时隙就会越短。例如相对于15kHz的SCS对应的一个时隙为1ms,480kHz的SCS对应的一个时隙长度仅为0.03125ms。如果仍然基于原来的时隙粒度进行数据调度传输,则数据传输效率会非常低。因此本申请实施例引入更大的调度单元对数据传输进行调度,即资源单元(Resource Unit,RU),从而提高数据传输效率。
图1为一实施例提供的一种数据传输方法的流程图,如图1所示,本实施例提供的方法包括如下步骤。
步骤S1010,配置传输资源配置信息,所述传输资源配置信息包括k个RU的配置信息,每个RU包括N个子载波和M个连续时隙,k、N、M为大于或等于1的整数。
本实施例提供的数据传输方法应用于无线通信系统中的基站。基站在无线通信系统中进行传输资源的调度,为上行或下行数据传输信道指示使用的传输资源。
在无线通信所使用的频率越来越高时,需要采用更大的SCS对抗多径信道衰落,而更大的SCS意味着更短的时隙,以很短的时隙进行数据传输的调度效率很低,因此在本实施例中采用新的数据调度单位RU,每个RU包括N个子载波和M个连续时隙,k、N、M为大于或等于1的整数,也即每个RU是由多个时域和频域上的基本传输单元组成的数据调度单位。其中,N,M的值根据SCS 来进行确定,或者根据调度的载波属性及时刻来确定,或者根据业务类型来确定。基站可以通过预定义方式,或者无线资源控制(Radio Resource Control,RRC)信令配置的方式来配置每个RU包含的连续时隙数目及子载波数目。在非高频情况下,同样可以使用新的数据调度单位RU。传输资源配置信息中包括k个RU的配置信息,k个RU可以是独立配置的,也可以是在一个信道占用时间(Channel Occupancy Time,COT)内的。
不同SCS间在1ms内时隙边界是对齐的。例如,不同的SCS包含的连续时隙数目及子载波数目如下表1所示。
表1
Figure PCTCN2020114777-appb-000001
步骤S1020,通过下行控制信令调度至少一个数据传输信道在所述传输资源配置信息指示的k个RU上传输。
在配置了传输资源配置信息后,基站即可通过下行控制信令调度至少一个数据传输信道在所述传输资源配置信息指示的k个RU上传输。下行控制信令例如是下行控制信息(Downlink Control Information,DCI),这一个DCI调度的数据传输信道包括以下任一种:物理上行共享信道(Physical Uplink Shared Channel,PUSCH)、物理下行共享信道(Physical Downlink Shared Channel,PDSCH)、物理上行控制信道(Physical Uplink Control Channel,PUCCH)、物理下行控制信道(Physical Downlink Control Channel,PUCCH)、同步信号块(Synchronization signal Block,SSB)。DCI可以调度一个PUSCH/PDSCH,也可以是多个PUSCH/PDSCH,或者是一个PUSCH/PDSCH重复发送的方式。即一个RU可以传输一个PUSCH/PDSCH,或者一个PUSCH/PDSCH可以传输多个RU。由于传输资源配置信息包括k个RU的配置信息,那么通过下行控制信令调度至少一个数据传输信道在传输资源配置信息指示的k个RU上传输,能够在高频场景中,不受限于时隙大小,灵活地调度数据传输信道的传输,从而提高数据传输效率。
本实施例提供的数据传输方法,应用于基站,首先配置传输资源配置信息,所述传输资源配置信息包括k个RU的配置信息,每个RU包括N个子载波和M个连续时隙,k、N、M为大于或等于1的整数,然后通过下行控制信令调度至少一个数据传输信道在所述传输资源配置信息指示的k个RU上传输,能够在高频场景中,不受限于时隙大小,灵活地调度数据传输信道的传输,从而提高数据传输效率。
图2为一实施例提供的另一种数据传输方法的流程图,如图2所示,本实施例提供的方法包括如下步骤。
步骤S2010,配置传输资源配置信息,所述传输资源配置信息包括k个资源单元RU的配置信息,每个RU包括N个子载波和M个连续时隙,k、N、M为大于或等于1的整数。
步骤S2020,向UE发送所述配置传输资源配置信息,所述传输资源配置信息还包括以下信息至少之一:一个COT内RU的配置信息;数据传输信道接入的类型信息;数据传输信道的空间方向信息。
对于每一个PUSCH或PDSCH在某个时刻可能会通过多个波束(beam)方向发送,或者是在不同的时刻通过不同的beam方向发送。在发送之前站点(基站或用户设备(User Equipment,UE))会先执行先听后说(Listen Before Talk,LBT),成功后才能在相应的方向发送。而为了使UE能够在配置了RU后正确地执行LBT,基站需要向UE发送传输资源配置信息。传输资源配置信息中包括以下信息至少之一:一个COT内RU的配置信息;数据传输信道接入的类型信息;数据传输信道的空间方向信息。所述信道接入的类型信息包括以下至少之一:带随机回退的全向LBT、非随机回退的全向LBT、带随机回退的定向LBT、非随机回退的定向LBT。数据传输信道的空间方向信息包括数据传输信道对应的波束(beam)方向。
在一实施例中,对于非授权载波,为了提高信道接入的概率,可以采用不同的RU调度粒度。一个COT内前面预设数量个RU占用的时间长度小于所述COT内其他的RU占用的时间长度。例如对于一个COT中前面的RU可以包含的时隙数目比较少,或者说调度粒度比较密集,对于一个COT的中间部分,调度的RU包含的时隙数目比较多,调度粒度比较稀疏,对于后面的COT剩余部分为了能发送完整的RU,则调度的RU可以包含的时隙数目少。
例如,基站通过下面的方法实现上面的非均匀资源的RU调度。
首先,基站通过RRC信令配置COT内每个RU的结束时隙末尾边界,例如可以通过时隙位图(bitmap)的方式配置,通过该方式实现不同RU包含不同数 目的时隙,即有的RU包含2个时隙(slot),有的RU包含3个slot,有的RU包含6个slot。
例如基站可以通过RRC信令000100000101来配置某个COT内的RU图样为第一个RU占4个slot,第二个RU为6个slot,第三个RU为2个slot。如图3所示,图3为一个COT内RU的配置示意图。中间RU2这种短时域资源的设计为了预留给紧急突发的超高可靠超低时延通信(Ultra Reliable&Low Latency Communication,URLLC)业务的数据调度传输用。
然后,基站可以通过DCI来指示调度的PUSCH/PDSCH所占据的起始RU的绝对的索引及数目。
在一实施例中,传输资源配置信息还包括:与RU的配置信息相关的数据传输信道的配置参数信息,所述配置参数信息包括以下任一种:与RU的配置信息相关的数据传输信道的定时信息、与RU的配置信息相关的数据传输信道的时域资源分配信息、与RU的配置信息相关的数据传输信道的码本信息。
对于高频,当调度单元为RU的时候,相关的一些定时参数的单位也需要进行修改。例如,相关定时量的定义,如DCI和调度的PDSCH之间的定时K0,PDSCH和UE反馈混合自动重传请求响应(Hybrid Automatic Repeat reQuest Acknowledgement,HARQ-ACK)对应的定时K1,DCI和调度的PUSCH之间的定时量K2都是以RU为单位来进行指示,而非原来的slot为单位。DCI里面指示的数目即K1的值是从包含PDSCH的RU到包含PUCCH的RU之间的RU的数目。另外,对于DCI里面的时域资源分配中的表格中的值也需要重新定义,K0和K2对应的值的单位为RU的数目。在RU为调度单元下,调度的PUSCH/PDSCH的起始符号S和传输的长度L之和可以超过14个符号,即超过一个时隙。同时,对于PDSCH对应的HARQ-ACK码本构建的时候也是以RU为单位进行构建。
在一实施例中,一个数据传输信道中的一个传输块TB的不同CBG在一个RU的不同时隙中传输。
该调度方法包括,一个传输块(Transmission Block,TB)可以调度跨slot边界传输,且该TB的每个编码块组(Code Block Group,CBG)占一个或多个时隙。在每个CBG的传输边界都有一次LBT机会,成功后发送该TB的剩余的CBG。如图4所示,图4为一个TB在RU内被调度CBG传输的示意图,基站调度三个TB分别在三个RU上传输,每个TB或每个RU传输的时域长度是不同的,对于第一个TB包含四个CBG,且每个CBG占一个或两个时隙,对于第二个TB包含六个CBG,且每个CBG占一个或两个时隙,对于第三个TB包含2个CBG,每个CBG占一个或两个时隙。对于解调参考信号(Demodulation  Reference Signal,DMRS),也是以一个RU为分配单位,即多个slot可以共享DMRS。
在一实施例中,对于调度的第一个TB因为LBT失败没能发送的CBG采用下述方法进行调度重传。
将LBT失败的空间方向上调度发送的CBG在LBT成功的空间方向上重新传输;或者将LBT失败的空间方向上调度发送的CBG在所述COT的新的时域上重新传输;或者将LBT失败的空间方向上调度发送的CBG在所述COT中LBT成功的子带上重新传输。
例如,某个时刻基站调度UE的TB1在RU1上进行数据传输,且TB1的不同的CBG占用RU1的不同的时隙。但UE在数据发送之前因为要执行LBT所以UE在CBG1发送之前LBT不一定能成功。
对于非授权载波调度的TB的前面的CBG如果因为LBT没能发送的话,转到后面的RU进行传输。具体可以是预定义的方式,即规定在n+2个RU进行发送未能发送的CBG。
或者基站动态信令指示未发送的CBG的新的时域位置。如图5所示,图5为LBT失败后在新的时域上重新传输CBG的示意图。其中由于TB1的LBT失败,TB1的CBG1和CBG2未成功发送,那么将在TB2之后的时隙中重新传输TB1的CBG1和CBG2。
或者基站预调度多个CBG在多个频域位置进行发送,然后将未能发送的CBG转到LBT成功的子带位置发送,如图6所示,图6为LBT失败后在新的频域上重新传输CBG的示意图。其中CBG1-CBG4分别在频带1-频带4中传输,而频带2和频带3的LBT失败,那么导致CBG2和CBG3为成功传输,因此在频带1和频带4中分别重新传输CBG2和CBG3。
或者基站将CBG1和CBG2转到LBT成功的beam方向上进行重新调度,如图7所示,图7为LBT失败后在LBT成功的方向上重新传输CBG的示意图。其中CBG2和CBG3对应的beam方向上的LBT失败,那么可以在LBT成功的CBG1的beam方向上重新传输CBG2和CBG3。
步骤S2030,通过下行控制信令调度至少一个数据传输信道在所述传输资源配置信息指示的k个RU上传输。
在一实施例中,基站会在调度数据传输信道的DCI里面给出发送数据传输信道之前所执行的LBT方式。例如,基站可以通过在DCI里面通过2比特来进行上述四种LBT之一的指示。
在一实施例中,对于定向的LBT的方向跟每次调度的数据传输的beam方 向相同,或者覆盖该数据传输的beam方向。具体通过空间信息参数或参考信号的资源确定。
在一实施例中,为了提高数据传输的概率,降低执行LBT的次数,这多个RU的beam方向是相同的,一旦UE执行LBT成功就可以连续传输多个RU,基站通过DCI里面仅给出一个SRS资源指示(SRS Resource Indicator,SRI)信息。
在一实施例中,当这多个PUSCH的beam方向相同的时候,站点在数据发送之前执行一次该beam方向的LBT,成功后连续传输调度的多个RU。如图8所示,图8为DCI调度多个方向相同的数据传输信道时的LBT示意图。
当这多个PUSCH传输beam方向不同的时候,即基站在DCI里面给出多个SRI信息,站点执行一次全向的LBT,成功后连续在多个beam方向上发送数据。另外,为了提高数据LBT成功的概率,基站可以预调度多个beam方向,UE按照优先级依次在多个beam方向上执行LBT,哪个成功发送哪个beam。
在一实施例中,对一个COT内数据传输在多个beam方向上的LBT方式及基站和UE在COT共享情况下,不同站点执行LBT的方式可以为多种。
当一个站点(包括基站及下属UE)在一个COT内有多次非连续的数据传输,且这多次传输的beam方向相同或不同的时候,站点可以采用下面的方式之一确定一个COT内每次数据传输之前所执行的LBT方式。
方式一:基站在COT的开始做一次全向的随机回退的LBT,成功后发起一个COT,后续在该COT内该基站或者该基站下属UE的数据传输之前采用定向的非随机回退的LBT。
方式二:基站在COT的开始做一次全向的随机回退的LBT,成功后发起一个COT,后续在该COT内基站或者基站的下属UE的数据传输之前采用定向的随机回退的LBT。
方式三:基站或UE在COT的开始执行一次随机回退的定向的LBT,成功后,在COT内如果后续待传输的数据的beam方向与该COT第一个beam传输的方向相同或者被第一次执行LBT的方向所覆盖,则执行不带随机回退的LBT,如果与第一个beam传输方向不同,则执行带随机回退的定向的LBT。
如图9所示,图9为本申请实施例提供的一种LBT的示意图,基站通过执行一次beam1方向的随机回退的LBT成功发起一个COT进行下行数据的发送,然后后续在该COT内,该基站下属的UE及该基站在数据发送之前因为beam方向和第一次执行LBT的beam方向相似或被第一次beam方向覆盖则可以执行非随机回退的LBT。
方式四:基站或UE在COT的开始及后续都执行定向的非随机回退的LBT方式。
方式五:UE执行一次带随机回退的全向的LBT,后续在该COT内基站有数据要发送的时候或者该相同UE在发送上行数据之前可以执行不带随机回退的定向的LBT。如图10所示,图10为本申请实施例提供的另一种LBT的示意图,
上述方式一至方式五既应用于同一个站点,如同一个UE或基站,也可以是UE和基站共享COT的情况,也就是说一个LBT成功的发起一个COT的站点可以和后面的站点不是同一个站点,可以是一个基站和其下属的UE,也可以是一个UE和它所属的基站共享一个COT。其中,上述对于定向的LBT的方向跟每次调度的数据传输的beam方向相同,或者覆盖该数据传输的beam方向。具体通过空间信息参数或参考信号的资源确定。
在一实施例中,对一个PUSCH/PDSCH同时通过多个beam方向发送的情况,可以采用下述方法进行处理。对于非码本的PUSCH非授权载波的传输,基站可能会调度多个beam方向发送,具体包括下面两种方法:
方法一:这多个beam方向是基站预调度传输的beam,最终UE在哪个beam方向发送PUSCH,可以基于每个beam的LBT结果,最终选择一个或两个beam方向发送。例如,基站在给UE配置多个SRS资源的时候有个优先级信息,当UE在多个beam方向执行LBT成功的时候,选择优先级较高的beam进行发送,同时基站按照配置的优先级进行检测。
例如基站给UE配置了三个SRS资源,同时按照SRS1,SRS2,SRS3的优先级高低进行排序,则UE同时或分别在这三个SRS资源对应的beam方向上执行LBT,如果只有一个beam方向LBT成功则在该方向发送PUSCH,如果有两个或者三个方向LBT都成功,则UE按照优先级顺序在优先级高的beam方向发送。如UE在SRS1和SRS2资源对应的beam方向上都LBT成功了,UE选择在SRS1对应的beam方向发送调度的PUSCH。
方法二:基站将一个TB的不同的CBG调度到不同的层上,每一层有不同的beam方向,例如某个TB包含4个CBG,通过编码交织层映射最终CBG1在beam1发送,CBG2在beam2发送,CBG3在beam3发送,CBG4在beam4发送。
然后UE在多个beam方向上执行LBT,然后哪些beam方向LBT成功了,UE在对应的beam方向上发送所调度的CBG。如图11所示,图11为本申请实施例提供的另一种LBT的示意图。UE在四个beam上分别执行LBT,结果CBG1 和CBG3传输方向的LBT成功了,而CBG2和CBG4方向的LBT失败了,则UE仅发送CBG1和CBG3,后续基站可以再调度CBG2和CBG4的重传,如果CBG1和CBG3传输正确就不用重新调度了。
本实施例中提到的beam方向的LBT方式为上述方式一-方式五中所述的LBT方式之一,并且具体采用哪种的预定义规则同上述方式一-方式五中所述。通过本实施例提供的方法解决了在高频非授权载波场景下,和某个beam方向执行LBT如果失败对整个TB的数据发送产生的不能正确解码的问题。
图12为一实施例提供的另一种数据传输方法的流程图,如图12所示,本实施例提供的方法包括如下步骤。
步骤S12010,接收基站发送的下行控制信令,所述下行控制信令用于调度至少一个数据传输信道在传输资源配置信息指示的k个资源单元RU上传输,所述传输资源配置信息包括k个RU的配置信息,每个RU包括N个子载波和M个连续时隙,k、N、M为大于或等于1的整数。
本实施例提供的数据传输方法应用于无线通信系统中的UE。UE在无线通信系统中接受基站对传输资源的调度,确定上行或下行数据传输信道所使用的传输资源,完成上行或下行数据传输信道的发送或接收。
步骤S12020,根据所述下行控制信令的调度在所述传输资源配置信息指示的k个RU上传输至少一个数据传输信道。
本实施例提供的数据传输方法为图1所示实施例中UE侧所进行的处理,其具体的实现方法和技术效果已经在图1所示实施例中进行了详细说明,此处不再赘述。
在一实施例中,在图12所示实施例的基础上,在所述接收终端发送的下行控制信令之前,还包括:
接收所述基站发送的所述传输资源配置信息;
所述传输资源配置信息还包括以下信息至少之一:
一个COT内RU的配置信息;
数据传输信道接入的类型信息;
数据传输信道的空间方向信息。
在一实施例中,在图12所示实施例的基础上,还包括:
通过RRC信令接收所述基站配置的所述COT内每个RU的结束时隙边界;
所述接收终端发送的下行控制信令,包括:
接收所述下行控制信令调度的至少一个数据传输信道在所述COT内的起始RU的索引和数目。
在一实施例中,在图12所示实施例的基础上,所述COT内前面预设数量个RU占用的时间长度小于所述COT内其他的RU占用的时间长度。
在一实施例中,在图12所示实施例的基础上,所述一个COT内RU的配置信息根据以下任一种方式确定:
SCS、调度的载波属性及时刻、业务类型。
在一实施例中,在图12所示实施例的基础上,一个数据传输信道中的一个TB的不同CBG在一个RU的不同时隙中传输。
在一实施例中,在图12所示实施例的基础上,所述传输资源配置信息还包括:
与RU的配置信息相关的数据传输信道的配置参数信息,所述配置参数信息包括以下任一种:与RU的配置信息相关的数据传输信道的定时信息、与RU的配置信息相关的数据传输信道的时域资源分配信息、与RU的配置信息相关的数据传输信道的码本信息。
在一实施例中,在图12所示实施例的基础上,所述数据传输信道包括以下任一种:
PUSCH、PDSCH、PUCCH、PDCCH、SSB。
在一实施例中,在图12所示实施例的基础上,所述信道接入的类型信息包括以下至少之一:
带随机回退的全向LBT、非随机回退的全向LBT、带随机回退的定向LBT、非随机回退的定向LBT。
在一实施例中,在图12所示实施例的基础上,所述定向LBT的方向和所述下行控制信令调度的数据传输信道的空间方向相同,或者所述定向LBT的方向覆盖所述下行控制信令调度的数据传输信道的空间方向。
在一实施例中,在图12所示实施例的基础上,所述数据传输信道的空间方向相同;
所述数据传输信道接入的类型信息包括:
在所述至少一个数据传输信道传输前,在所述至少一个数据传输信道的空间方向执行一次定向LBT。
在一实施例中,在图12所示实施例的基础上,所述数据传输信道的空间方 向不相同;
所述数据传输信道接入的类型信息包括:
在所述至少一个数据传输信道传输前,在所述至少一个数据传输信道的空间方向执行一次全向LBT。
在一实施例中,在图12所示实施例的基础上,当所述数据传输信道在一个COT的多个RU上传输时,还包括:通过以下任一种方式确定所述信道接入的类型信息:
所述基站在所述COT内第一次发送数据传输信道之前进行一次带随机回退的全向LBT,若所述带随机回退的全向LBT成功,则所述基站或UE在所述COT内后续发送数据传输信道之前执行定向LBT或不执行LBT;
所述基站在所述COT内第一次发送数据传输信道之前进行一次带随机回退的全向LBT,若所述带随机回退的全向LBT成功,则在所述COT内后续发送的数据传输信道的空间方向与第一个数据传输信道的空间方向相同或被所述带随机回退的全向LBT的方向覆盖时,则在所述COT内后续发送的数据传输信道前执行非随机回退的LBT或不执行LBT,否则在所述COT内后续发送的数据传输信道前执行带随机回退的LBT;
所述基站或UE在所述COT内每次发送数据传输信道之前均执行非随机回退的定向LBT;
UE在所述COT内第一次发送数据传输信道之前进行一次带随机回退的全向LBT,若所述带随机回退的全向LBT成功,则所述基站或UE在所述COT内后续发送数据传输信道之前采用非随机回退的定向LBT;
若所述基站在所述COT内发送的多次数据传输信道的波束的宽度之和大于预设阈值或者所述基站在所述COT内发送的多次数据传输信道的波束数量大于预设阈值,所述基站在所述COT内采用全向的LBT,否则所述基站为每个数据传输通道执行定向的LBT。
在一实施例中,在图12所示实施例的基础上,所述带随机回退的定向LBT或所述非随机回退的定向LBT的方向与每次调度的数据传输信道的空间方向相同或者覆盖每次调度的数据传输信道的空间方向。
在一实施例中,在图12所示实施例的基础上,所述空间方向信息通过空间信息参数或参考信号的资源确定。
在一实施例中,在图12所示实施例的基础上,所述数据传输信道在所述传输资源配置信息指示的k个RU上传输,包括:
对一个数据传输信道在多个空间方向执行LBT,在LBT成功的空间方向上传输所述数据传输信道;
或者对一个数据传输信道在多个空间方向执行LBT,在LBT成功的空间方向上选择优先级最高的空间方向传输所述数据传输信道。
在一实施例中,在图12所示实施例的基础上,所述数据传输信道在所述传输资源配置信息指示的k个RU上传输,包括:
将一个数据传输信道的一个TB的不同CBG调度到不同的层上,在所述数据传输信道的LBT成功的空间方向上调度发送所述不同CBG。
在一实施例中,在图12所示实施例的基础上,所述数据传输信道在所述传输资源配置信息指示的k个RU上传输,包括:
将LBT失败的空间方向上调度发送的CBG在LBT成功的空间方向上重新传输;
或者将LBT失败的空间方向上调度发送的CBG在所述COT的新的时域上重新传输;
或者将LBT失败的空间方向上调度发送的CBG在所述COT中LBT成功的子带上重新传输。
图13为一实施例提供的一种数据传输装置的结构示意图,如图13所示,本实施例提供的数据传输装置设置于基站,包括:
配置模块131,设置为配置传输资源配置信息,所述传输资源配置信息包括k个RU的配置信息,每个RU包括N个子载波和M个连续时隙,k、N、M为大于或等于1的整数;调度模块132,设置为通过下行控制信令调度至少一个数据传输信道在所述传输资源配置信息指示的k个RU上传输。
本实施例提供的数据传输装置用于实现图1所示实施例的数据传输方法,本实施例提供的数据传输装置实现原理和技术效果类似,此处不再赘述。
图14为一实施例提供的另一种数据传输装置的结构示意图,如图14所示,本实施例提供的数据传输装置设置于UE,包括:
接收模块141,设置为接收基站发送的下行控制信令,所述下行控制信令用于调度至少一个数据传输信道在传输资源配置信息指示的k个RU上传输,所述传输资源配置信息包括k个RU的配置信息,每个RU包括N个子载波和M个连续时隙,k、N、M为大于或等于1的整数;传输模块142,设置为根据所述下行控制信令的调度在所述传输资源配置信息指示的k个RU上传输至少一个数据传输信道。
本实施例提供的数据传输装置用于实现图12所示实施例的数据传输方法,本实施例提供的数据传输装置实现原理和技术效果类似,此处不再赘述。
图15为一实施例提供的一种数据传输系统的结构示意图,如图15所示,本实施例提供的数据传输系统包括:基站151和UE 152。其中基站151包括如图13所示的数据传输装置,UE 152包括如图14所示的数据传输装置。
图16为一实施例提供的一种基站的结构示意图,如图16所示,该基站包括处理器161、存储器162、发送器163和接收器164;基站中处理器161的数量可以是一个或多个,图16中以一个处理器161为例;基站中的处理器161和存储器162可以通过总线或其他方式连接,图16中以通过总线连接为例。
存储器162作为一种计算机可读存储介质,可设置为存储软件程序、计算机可执行程序以及模块,如本申请图1或图2实施例中的数据传输方法对应的程序指令/模块(例如,数据传输装置中的配置模块131、调度模块132)。处理器161通过运行存储在存储器162中的软件程序、指令以及模块,从而基站至少一种功能应用以及数据处理,即实现上述的数据传输方法。
存储器162可主要包括存储程序区和存储数据区,其中,存储程序区可存储操作系统、至少一个功能所需的应用程序;存储数据区可存储根据终端的使用所创建的数据等。此外,存储器162可以包括高速随机存取存储器,还可以包括非易失性存储器,例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。
发送器163为能够将射频信号发射至空间中的模块或器件组合,例如包括射频发射机、天线以及其他器件的组合。接收器164为能够从空间中接收射频信号的模块或器件组合,例如包括射频接收机、天线以及其他器件的组合。
图17为一实施例提供的一种UE的结构示意图,如图17所示,该UE包括处理器171、存储器172、发送器173和接收器174;UE中处理器171的数量可以是一个或多个,图17中以一个处理器171为例;UE中的处理器171和存储器172可以通过总线或其他方式连接,图17中以通过总线连接为例。
存储器172作为一种计算机可读存储介质,可设置为存储软件程序、计算机可执行程序以及模块,如本申请图12实施例中的数据传输方法对应的程序指令/模块(例如,数据传输装置中的接收模块141、传输模块142)。处理器171通过运行存储在存储器172中的软件程序、指令以及模块,从而UE至少一种功能应用以及数据处理,即实现上述的数据传输方法。
存储器172可主要包括存储程序区和存储数据区,其中,存储程序区可存储操作系统、至少一个功能所需的应用程序;存储数据区可存储根据基站的使 用所创建的数据等。此外,存储器172可以包括高速随机存取存储器,还可以包括非易失性存储器,例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。
发送器173为能够将射频信号发射至空间中的模块或器件组合,例如包括射频发射机、天线以及其他器件的组合。接收器174为能够从空间中接收射频信号的模块或器件组合,例如包括射频接收机、天线以及其他器件的组合。
本申请实施例还提供一种包含计算机可执行指令的存储介质,计算机可执行指令在由计算机处理器执行时用于执行一种数据传输方法,该方法包括:配置传输资源配置信息,所述传输资源配置信息包括k个RU的配置信息,每个RU包括N个子载波和M个连续时隙,k、N、M为大于或等于1的整数;通过下行控制信令调度至少一个数据传输信道在所述传输资源配置信息指示的k个RU上传输。
本申请实施例还提供一种包含计算机可执行指令的存储介质,计算机可执行指令在由计算机处理器执行时用于执行一种数据传输方法,该方法包括:接收基站发送的下行控制信令,所述下行控制信令用于调度至少一个数据传输信道在传输资源配置信息指示的k个RU上传输,所述传输资源配置信息包括k个RU的配置信息,每个RU包括N个子载波和M个连续时隙,k、N、M为大于或等于1的整数;根据所述下行控制信令的调度在所述传输资源配置信息指示的k个RU上传输至少一个数据传输信道。
以上所述,仅为本申请的示例性实施例而已,并非用于限定本申请的保护范围。
本领域内的技术人员应明白,术语用户终端涵盖任何适合类型的无线用户设备,例如移动电话、便携数据处理装置、便携网络浏览器或车载移动台。
一般来说,本申请的多种实施例可以在硬件或专用电路、软件、逻辑或其任何组合中实现。例如,一些方面可以被实现在硬件中,而其它方面可以被实现在可以被控制器、微处理器或其它计算装置执行的固件或软件中,尽管本申请不限于此。
本申请的实施例可以通过移动装置的数据处理器执行计算机程序指令来实现,例如在处理器实体中,或者通过硬件,或者通过软件和硬件的组合。计算机程序指令可以是汇编指令、指令集架构(InstructionSet Architecture,ISA)指令、机器指令、机器相关指令、微代码、固件指令、状态设置数据、或者以一种或多种编程语言的任意组合编写的源代码或目标代码。
本申请附图中的任何逻辑流程的框图可以表示程序步骤,或者可以表示相 互连接的逻辑电路、模块和功能,或者可以表示程序步骤与逻辑电路、模块和功能的组合。计算机程序可以存储在存储器上。存储器可以具有任何适合于本地技术环境的类型并且可以使用任何适合的数据存储技术实现,例如但不限于只读存储器(Read-Only Memory,ROM)、随机访问存储器(Random Access Memory,RAM)、光存储器装置和系统(数码多功能光碟(Digital Video Disc,DVD)或光盘(Compact Disc,CD)等。计算机可读介质可以包括非瞬时性存储介质。数据处理器可以是任何适合于本地技术环境的类型,例如但不限于通用计算机、专用计算机、微处理器、数字信号处理器(Digital Signal Processing,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、可编程逻辑器件(Field-Programmable Gate Array,FPGA)以及基于多核处理器架构的处理器。

Claims (39)

  1. 一种数据传输方法,应用于基站,包括:
    配置传输资源配置信息,所述传输资源配置信息包括k个资源单元RU的配置信息,每个RU包括N个子载波和M个连续时隙,k、N和M为大于或等于1的整数;
    通过下行控制信令调度至少一个数据传输信道在所述传输资源配置信息指示的k个RU上传输。
  2. 根据权利要求1所述的方法,其中,在所述通过下行控制信令调度至少一个数据传输信道在所述传输资源配置信息指示的k个RU上传输之前,还包括:
    向用户设备UE发送所述传输资源配置信息;
    所述传输资源配置信息还包括以下信息至少之一:
    一个信道占用时间COT内RU的配置信息;
    数据传输信道接入的类型信息;
    数据传输信道的空间方向信息。
  3. 根据权利要求2所述的方法,还包括:
    通过无线资源控制RRC信令配置所述COT内每个RU的结束时隙边界;
    所述通过下行控制信令调度至少一个数据传输信道在所述传输资源配置信息指示的k个RU上传输,包括:
    通过所述下行控制信令调度所述至少一个数据传输信道在所述COT内的起始RU的索引和数目。
  4. 根据权利要求2所述的方法,其中,所述COT内前面预设数量个RU占用的时间长度小于所述COT内其他的RU占用的时间长度。
  5. 根据权利要求2所述的方法,其中,所述一个COT内RU的配置信息根据以下任一种方式确定:
    子载波间隔SCS、调度的载波属性及时刻、业务类型。
  6. 根据权利要求1~5任一项所述的方法,其中,一个数据传输信道中的一个传输块TB的不同编码块组CBG在一个RU的不同时隙中传输。
  7. 根据权利要求1~5所述的方法,其中,所述传输资源配置信息还包括:
    与RU的配置信息相关的数据传输信道的配置参数信息,所述配置参数信息包括以下任一种:与RU的配置信息相关的数据传输信道的定时信息、与RU的配置信息相关的数据传输信道的时域资源分配信息、与RU的配置信息相关的数 据传输信道的码本信息。
  8. 根据权利要求1~5任一项所述的方法,其中,所述至少一个数据传输信道包括以下任一种:
    物理上行共享信道PUSCH、物理下行共享信道PDSCH、物理上行控制信道PUCCH、物理下行控制信道PDCCH、同步信号块SSB。
  9. 根据权利要求2所述的方法,其中,所述数据传输信道接入的类型信息包括以下至少之一:
    带随机回退的全向先听后说LBT、非随机回退的全向LBT、带随机回退的定向LBT、非随机回退的定向LBT。
  10. 根据权利要求9所述的方法,其中,所述定向LBT的方向和所述下行控制信令调度的至少一个数据传输信道的空间方向相同,或者所述定向LBT的方向覆盖所述下行控制信令调度的至少一个数据传输信道的空间方向。
  11. 根据权利要求9所述的方法,其中,在所述至少一个数据传输信道为多个的情况下,多个数据传输信道的空间方向相同;
    所述数据传输信道接入的类型信息包括:
    在所述至少一个数据传输信道传输前,在所述至少一个数据传输信道的空间方向执行一次定向LBT。
  12. 根据权利要求9所述的方法,其中,在所述至少一个数据传输信道为多个的情况下,多个数据传输信道的空间方向不相同;
    所述数据传输信道接入的类型信息包括:
    在所述至少一个数据传输信道传输前,在所述至少一个数据传输信道的空间方向执行一次全向LBT。
  13. 根据权利要求9所述的方法,其中,在所述数据传输信道在一个COT的多个RU上传输的情况下,还包括:通过以下任一种方式确定所述数据传输信道接入的类型信息:
    所述基站在所述COT内第一次发送数据传输信道之前进行一次所述带随机回退的全向LBT,在所述带随机回退的全向LBT成功的情况下,所述基站或所述UE在所述COT内后续发送数据传输信道之前执行定向LBT或不执行LBT;
    所述基站在所述COT内第一次发送数据传输信道之前进行一次所述带随机回退的全向LBT,在所述带随机回退的全向LBT成功的情况下,在所述COT内后续发送的数据传输信道的空间方向与第一个数据传输信道的空间方向相同或被所述带随机回退的全向LBT的方向覆盖的情况下,在所述COT内后续发送 的数据传输信道前执行非随机回退的LBT或不执行LBT,在所述COT内后续发送的数据传输信道的空间方向与第一个数据传输信道的空间方向不同或不被所述带随机回退的全向LBT的方向覆盖的情况下,在所述COT内后续发送的数据传输信道前执行带随机回退的LBT;
    所述基站或所述UE在所述COT内每次发送数据传输信道之前均执行所述非随机回退的定向LBT;
    所述UE在所述COT内第一次发送数据传输信道之前进行一次所述带随机回退的全向LBT,在所述带随机回退的全向LBT成功的情况下,所述基站或所述UE在所述COT内后续发送数据传输信道之前采用所述非随机回退的定向LBT;
    在所述基站在所述COT内发送的多次数据传输信道的波束的宽度之和大于预设阈值或者所述基站在所述COT内发送的多次数据传输信道的波束数量大于预设阈值的情况下,所述基站在所述COT内采用全向LBT,在所述基站在所述COT内发送的多次数据传输信道的波束的宽度之和不大于预设阈值或所述基站在所述COT内发送的多次数据传输信道的波束数量不大于预设阈值的情况下,所述基站为每个数据传输通道执行定向LBT。
  14. 根据权利要求9所述的方法,其中,所述带随机回退的定向LBT的方向与每次调度的数据传输信道的空间方向相同或者覆盖每次调度的数据传输信道的空间方向,或,所述非随机回退的定向LBT的方向与每次调度的数据传输信道的空间方向相同或者覆盖每次调度的数据传输信道的空间方向。
  15. 根据权利要求14所述的方法,其中,所述空间方向信息通过空间信息参数或参考信号的资源确定。
  16. 根据权利要求9所述的方法,其中,所述至少一个数据传输信道在所述传输资源配置信息指示的k个RU上传输,包括:
    对一个数据传输信道在多个空间方向执行LBT,在LBT成功的空间方向上传输所述数据传输信道;
    或者对一个数据传输信道在多个空间方向执行LBT,在LBT成功的空间方向上选择优先级最高的空间方向传输所述数据传输信道。
  17. 根据权利要求9所述的方法,其中,所述至少一个数据传输信道在所述传输资源配置信息指示的k个RU上传输,包括:
    将一个数据传输信道的一个TB的不同CBG调度到不同的层上,在所述数据传输信道的LBT成功的空间方向上调度发送所述不同CBG。
  18. 根据权利要求16所述的方法,其中,所述至少一个数据传输信道在所述传输资源配置信息指示的k个RU上传输,包括:
    将LBT失败的空间方向上调度发送的CBG在LBT成功的空间方向上重新传输;
    或者将LBT失败的空间方向上调度发送的CBG在所述COT的新的时域上重新传输;
    或者将LBT失败的空间方向上调度发送的CBG在所述COT中LBT成功的子带上重新传输。
  19. 一种数据传输方法,应用于用户设备UE,包括:
    接收基站发送的下行控制信令,所述下行控制信令用于调度至少一个数据传输信道在传输资源配置信息指示的k个资源单元RU上传输,所述传输资源配置信息包括k个RU的配置信息,每个RU包括N个子载波和M个连续时隙,k、N和M为大于或等于1的整数;
    根据所述下行控制信令的调度在所述传输资源配置信息指示的k个RU上传输所述至少一个数据传输信道。
  20. 根据权利要求19所述的方法,其中,在所述接收基站发送的下行控制信令之前,还包括:
    接收所述基站发送的所述传输资源配置信息;
    所述传输资源配置信息还包括以下信息至少之一:
    一个信道占用时间COT内RU的配置信息;
    数据传输信道接入的类型信息;
    数据传输信道的空间方向信息。
  21. 根据权利要求20所述的方法,还包括:
    通过无线资源控制RRC信令接收所述基站配置的所述COT内每个RU的结束时隙边界;
    所述接收基站发送的下行控制信令,包括:
    接收所述下行控制信令调度的至少一个数据传输信道在所述COT内的起始RU的索引和数目。
  22. 根据权利要求20所述的方法,其中,所述COT内前面预设数量个RU占用的时间长度小于所述COT内其他的RU占用的时间长度。
  23. 根据权利要求20所述的方法,其中,所述一个COT内RU的配置信息根据以下任一种方式确定:
    子载波间隔SCS、调度的载波属性及时刻、业务类型。
  24. 根据权利要求19~23任一项所述的方法,其中,一个数据传输信道中的一个传输块TB的不同编码块组CBG在一个RU的不同时隙中传输。
  25. 根据权利要求19~23所述的方法,其中,所述传输资源配置信息还包括:
    与RU的配置信息相关的数据传输信道的配置参数信息,所述配置参数信息包括以下任一种:与RU的配置信息相关的数据传输信道的定时信息、与RU的配置信息相关的数据传输信道的时域资源分配信息、与RU的配置信息相关的数据传输信道的码本信息。
  26. 根据权利要求19~23任一项所述的方法,其中,所述至少一个数据传输信道包括以下任一种:
    物理上行共享信道PUSCH、物理下行共享信道PDSCH、物理上行控制信道PUCCH、物理下行控制信道PDCCH、同步信号块SSB。
  27. 根据权利要求20所述的方法,其中,所述数据传输信道接入的类型信息包括以下至少之一:
    带随机回退的全向先听后说LBT、非随机回退的全向LBT、带随机回退的定向LBT、非随机回退的定向LBT。
  28. 根据权利要求27所述的方法,其中,所述定向LBT的方向和所述下行控制信令调度的至少一个数据传输信道的空间方向相同,或者所述定向LBT的方向覆盖所述下行控制信令调度的至少一个数据传输信道的空间方向。
  29. 根据权利要求27所述的方法,其中,在所述至少一个数据传输信道为多个的情况下,多个数据传输信道的空间方向相同;
    所述数据传输信道接入的类型信息包括:
    在所述至少一个数据传输信道传输前,在所述至少一个数据传输信道的空间方向执行一次定向LBT。
  30. 根据权利要求27所述的方法,其中,在所述至少一个数据传输信道为多个的情况下,多个数据传输信道的空间方向不相同;
    所述数据传输信道接入的类型信息包括:
    在所述至少一个数据传输信道传输前,在所述至少一个数据传输信道的空间方向执行一次全向LBT。
  31. 根据权利要求27所述的方法,其中,在所述数据传输信道在一个COT的多个RU上传输的情况下,还包括:通过以下任一种方式确定所述数据传输信道接入的类型信息:
    所述基站在所述COT内第一次发送数据传输信道之前进行一次所述带随机回退的全向LBT,在所述带随机回退的全向LBT成功的情况下,所述基站或所述UE在所述COT内后续发送数据传输信道之前执行定向LBT或不执行LBT;
    所述基站在所述COT内第一次发送数据传输信道之前进行一次所述带随机回退的全向LBT,在所述带随机回退的全向LBT成功的情况下,在所述COT内后续发送的数据传输信道的空间方向与第一个数据传输信道的空间方向相同或被所述带随机回退的全向LBT的方向覆盖的情况下,在所述COT内后续发送的数据传输信道前执行非随机回退的LBT或不执行LBT,在所述COT内后续发送的数据传输信道的空间方向与第一个数据传输信道的空间方向不同或不被所述带随机回退的全向LBT的方向覆盖的情况下,在所述COT内后续发送的数据传输信道前执行带随机回退的LBT;
    所述基站或所述UE在所述COT内每次发送数据传输信道之前均执行所述非随机回退的定向LBT;
    所述UE在所述COT内第一次发送数据传输信道之前进行一次所述带随机回退的全向LBT,在所述带随机回退的全向LBT成功的情况下,所述基站或所述UE在所述COT内后续发送数据传输信道之前采用所述非随机回退的定向LBT;
    在所述基站在所述COT内发送的多次数据传输信道的波束的宽度之和大于预设阈值或者所述基站在所述COT内发送的多次数据传输信道的波束数量大于预设阈值的情况下,所述基站在所述COT内采用全向LBT,在所述基站在所述COT内发送的多次数据传输信道的波束的宽度之和不大于预设阈值或所述基站在所述COT内发送的多次数据传输信道的波束数量不大于预设阈值的情况下,所述基站为每个数据传输通道执行定向LBT。
  32. 根据权利要求27所述的方法,其中,所述带随机回退的定向LBT的方向与每次调度的数据传输信道的空间方向相同或者覆盖每次调度的数据传输信道的空间方向,或,所述非随机回退的定向LBT的方向与每次调度的数据传输信道的空间方向相同或者覆盖每次调度的数据传输信道的空间方向。
  33. 根据权利要求32所述的方法,其中,所述空间方向信息通过空间信息参数或参考信号的资源确定。
  34. 根据权利要求20所述的方法,其中,所述至少一个数据传输信道在所述 传输资源配置信息指示的k个RU上传输,包括:
    对一个数据传输信道在多个空间方向执行LBT,在LBT成功的空间方向上传输所述数据传输信道;
    或者对一个数据传输信道在多个空间方向执行LBT,在LBT成功的空间方向上选择优先级最高的空间方向传输所述数据传输信道。
  35. 根据权利要求20所述的方法,其中,所述至少一个数据传输信道在所述传输资源配置信息指示的k个RU上传输,包括:
    将一个数据传输信道的一个TB的不同CBG调度到不同的层上,在所述数据传输信道的LBT成功的空间方向上调度发送所述不同CBG。
  36. 根据权利要求34所述的方法,其中,所述至少一个数据传输信道在所述传输资源配置信息指示的k个RU上传输,包括:
    将LBT失败的空间方向上调度发送的CBG在LBT成功的空间方向上重新传输;
    或者将LBT失败的空间方向上调度发送的CBG在所述COT的新的时域上重新传输;
    或者将LBT失败的空间方向上调度发送的CBG在所述COT中LBT成功的子带上重新传输。
  37. 一种数据传输装置,设置于基站,包括:
    配置模块,设置为配置传输资源配置信息,所述传输资源配置信息包括k个资源单元RU的配置信息,每个RU包括N个子载波和M个连续时隙,k、N和M为大于或等于1的整数;
    调度模块,设置为通过下行控制信令调度至少一个数据传输信道在所述传输资源配置信息指示的k个RU上传输。
  38. 一种数据传输装置,设置于用户设备UE,包括:
    接收模块,设置为接收基站发送的下行控制信令,所述下行控制信令用于调度至少一个数据传输信道在传输资源配置信息指示的k个资源单元RU上传输,所述传输资源配置信息包括k个RU的配置信息,每个RU包括N个子载波和M个连续时隙,k、N和M为大于或等于1的整数;
    传输模块,设置为根据所述下行控制信令的调度在所述传输资源配置信息指示的k个RU上传输所述至少一个数据传输信道。
  39. 一种数据传输系统,所述数据传输系统包括基站和用户设备UE; 所述基站包括如权利要求37所述的数据传输装置;所述UE包括如权利要求38所述的数据传输装置。
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