WO2021218565A1 - 数据传输时的波束确定方法及装置、存储介质、ue、基站 - Google Patents

数据传输时的波束确定方法及装置、存储介质、ue、基站 Download PDF

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Publication number
WO2021218565A1
WO2021218565A1 PCT/CN2021/084915 CN2021084915W WO2021218565A1 WO 2021218565 A1 WO2021218565 A1 WO 2021218565A1 CN 2021084915 W CN2021084915 W CN 2021084915W WO 2021218565 A1 WO2021218565 A1 WO 2021218565A1
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uplink data
ssb
target ssb
base station
dmrs
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PCT/CN2021/084915
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English (en)
French (fr)
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高兴航
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北京紫光展锐通信技术有限公司
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Priority to US17/921,741 priority Critical patent/US20230170978A1/en
Priority to EP21796193.7A priority patent/EP4145913A4/en
Publication of WO2021218565A1 publication Critical patent/WO2021218565A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H04B7/06952—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • 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 invention relates to the field of communications, in particular to a beam determination method and device, storage medium, UE, and base station during data transmission.
  • preconfigured uplink resources Preconfigured UL Resource, PUR
  • the serving cell where the UE is located It can be regarded as a single beam (beam) operation, and the base station can directly send a response message to the UE of the beam.
  • NR fifth-generation communication protocol
  • 5G New Radio
  • NR New Radio
  • multi-beam operation is supported, and each beam corresponds to a synchronization signal block (Synchronization Signal and PBCH block, SSB), All can access user equipment (User Equipment, UE for short).
  • the base station can instruct the UE to perform the Inactive state when the UE is not transmitting or receiving data, and the UE in the Inactive state can pass random The access (Random Access, RA for short) process transitions to the connected state.
  • the standard text Rel-17 (referred to as R17) supports the UE to transmit data on the PUR and send uplink data in the Inactive state.
  • the base station needs to know which SSB to send the response message to the UE. If the base station uses all available SSBs to send a response message to the UE, it can ensure that the UE receives the response message. However, the transmission of response messages by the base station in all SSBs will cause unnecessary waste of resources and increase the power consumption of the base station.
  • the technical problem solved by the present invention is how to avoid resource waste and power consumption caused by the base station transmitting response messages in all SSBs.
  • an embodiment of the present invention provides a beam determination method during data transmission.
  • the method includes: determining a target SSB for responding to data transmission; sending uplink data to a base station, and when sending the uplink data Indicate the target SSB, so that the base station uses the target SSB to send response information in response to the uplink data; wherein, the SSB and the beam have a one-to-one correspondence.
  • the indicating the target SSB when sending uplink data includes: when sending the uplink data, indirectly indicating the target SSB through a DMRS resource associated with the uplink data and a preset mapping relationship, and the preset mapping relationship Contains the one-to-one correspondence between DMRS resources and SSB.
  • a DMRS resource associated with the uplink data and a preset mapping relationship including: determining the DMRS corresponding to the target SSB according to the target SSB and the preset mapping relationship Resource; when sending the uplink data, use the DMRS resource corresponding to the target SSB to associate the uplink data.
  • the DMRS resource is a DMRS sequence and/or a DMRS port.
  • the beam determination method further includes: receiving system information or dedicated RRC signaling to obtain the DMRS resource configuration and the preset mapping relationship.
  • the indicating the target SSB when sending uplink data includes: directly indicating the target SSB by using report signaling when sending the uplink data.
  • the report signaling is carried in a medium access control unit or uplink control information.
  • An embodiment of the present invention also provides a beam determination method during data transmission.
  • the method includes: receiving uplink data sent by a UE, determining a target SSB for responding to data transmission according to the uplink data; sending a response using the target SSB The response information for the uplink data; wherein, the SSB and the beam have a one-to-one correspondence.
  • the determining the target SSB used to respond to data transmission according to the uplink data sent by the UE includes: determining the DMRS resource associated with the uplink data, and determining the DMRS associated with the uplink data through a preset mapping relationship For the target SSB corresponding to the resource, the preset mapping relationship includes a one-to-one correspondence between the DMRS resource and the SSB.
  • the DMRS resource is a DMRS sequence and/or a DMRS port.
  • the beam determination method further includes: indicating DMRS resource configuration and the preset mapping relationship through system information or dedicated RRC signaling sent to the UE.
  • the uplink data includes report signaling that directly indicates the target SSB
  • the determining the target SSB for responding to data transmission according to the uplink data sent by the UE includes: according to the report signaling Determine the target SSB.
  • the report signaling is carried in a medium access control unit or uplink control information.
  • the embodiment of the present invention also provides a beam determining device during data transmission, the device includes: a target SSB determining module, used to determine a target SSB used to respond to data transmission; an uplink data sending module, used to send uplink data to a base station , And indicate the target SSB when sending the uplink data, so that the base station uses the target SSB to send response information in response to the uplink data; wherein, the SSB and the beam have a one-to-one correspondence.
  • An embodiment of the present invention also provides a beam determining device during data transmission, the device includes: an uplink data receiving module, configured to receive uplink data sent by a UE, and determine a target SSB used to respond to data transmission according to the uplink data; The response module is configured to use the target SSB to send response information in response to the uplink data; wherein, the SSB and the beam have a one-to-one correspondence.
  • the embodiment of the present invention also provides a storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of any one of the foregoing methods are implemented.
  • An embodiment of the present invention also provides a UE, which includes the device described above, or includes a memory and a processor, the memory stores a computer program, and the processor implements any of the methods described above when the computer program is executed. A step of.
  • An embodiment of the present invention further provides a base station, which includes the device described above, or includes a memory and a processor, the memory stores a computer program, and the processor implements any of the methods described above when the computer program is executed A step of.
  • the embodiment of the present invention provides a beam determination method during data transmission.
  • the method includes: determining a target SSB for responding to data transmission; sending uplink data to a base station, and instructing the target SSB when sending the uplink data, So that the base station uses the target SSB to send response information in response to the uplink data; wherein, the SSB and the beam have a one-to-one correspondence.
  • the target SSB is indicated when the UE sends uplink data to the network side, and the base station can directly send the response message corresponding to the uplink data to the UE through the target SSB, without sending response messages to all SSBs configured for the base station , Thereby avoiding unnecessary waste of resources and saving the power consumption of the base station.
  • the preset mapping relationship between the DMRS resource and the SSB may be the mapping relationship between the DMRS sequence and the SSB, or the mapping relationship between the DMRS port and the SSB, or the combination of the DMRS sequence and the DMRS port and the SSB.
  • the mapping relationship between the UEs enables the UE to indicate the target SSB when transmitting uplink data through DMRS resources.
  • the UE may directly indicate the target SSB through report signaling in the uplink data sent to the base station, so that the base station determines the target SSB according to the decoded uplink data, and then uses the target SSB to send a downlink response message to the UE.
  • the report signaling can be carried by MACCE or UCI.
  • Fig. 1 is a schematic diagram of the first situation after the UE sends a recovery request to the network in the prior art
  • FIG. 2 is a schematic diagram of the second situation after the UE sends a recovery request to the network in the prior art
  • FIG. 3 is a schematic diagram of a third situation after the UE sends a recovery request to the network in the prior art
  • FIG. 4 is a schematic diagram of a fourth situation after the UE sends a recovery request to the network in the prior art
  • FIG. 5 is a schematic flowchart of a first beam determination method during data transmission according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of the preset mapping relationship between DMRS sequence or port and SSB in an application example of the present invention
  • FIG. 7 is a schematic diagram of the preset mapping relationship between DMRS sequence and port combination and SSB in an application example of the present invention
  • FIG. 8 is a schematic diagram of using an 8-bit MAC CE to indicate a target SSB in an application example of the present invention
  • Fig. 9 is a schematic diagram of using a 16-bit MAC CE to indicate a target SSB in an application example of the present invention.
  • FIG. 10 is a schematic diagram of MAC CE indicating a target SSB in a grouping manner in an application example of the present invention
  • Fig. 11 is a schematic diagram of the MAC CE using a binary value to directly indicate the target SSB in an application example
  • FIG. 12 is a schematic structural diagram of a UCI according to an embodiment of the present invention.
  • FIG. 13 is a schematic flowchart of a second beam determination method during data transmission according to an embodiment of the present invention.
  • FIG. 14 is a schematic diagram of the structure of a first beam determination device during data transmission according to an embodiment of the present invention.
  • FIG. 15 is a schematic structural diagram of a second beam determination device during data transmission according to an embodiment of the present invention.
  • LTE supports the idle (IDLE) state to transmit data on pre-configured uplink resources.
  • the base station can configure pre-configured uplink resources for the UE to enter the idle state for data transmission through a radio resource control (Radio Resource Control, RRC) connection release message in the connected state, and the base station can update the pre-configured resources.
  • RRC Radio Resource Control
  • NR introduces an inactive (Inactive) state.
  • the base station can instruct the UE to enter the Inactive state.
  • the UE behaves the same in the Inactive state and the idle (IDLE) state.
  • the UE does not monitor the PDCCH, does not perform the measurement, and only performs the detection of the reference signal, the cell reselection, and the monitoring of paging/system messages.
  • Information referred to as SI
  • SI Information
  • the difference between the UE in the Inactive state and the idle state is: In the Inactive state, both the base station and the UE save the context of the UE to send and receive data.
  • the UE When there is data to be sent and received again, the UE can quickly resume through the RACH process (resume) , There is no need to reactivate the security mode, report capabilities, and configure information. As a result, the signaling interaction process when the UE turns to the active state is simplified, the signaling overhead is reduced, and the power consumption of the UE is reduced.
  • the UE does not support user-level data transmission in the Inactive state. If the UE has data transmission, it needs to be transferred to the connected state before transmission.
  • the RRC resume process can quickly complete RRC recovery through the 4-step RACH and 2-step RACH procedures.
  • the UE sends a resume message to the base station.
  • the resume message can be an RRC resume request (RRC Resume Request shown in Figures 1 to 4). ), the base station receives the RRC Resume Request, and the corresponding response messages are as follows: Please refer to Figures 1 to 4.
  • Figures 1 to 4 are the four types after the UE sends the RRC connection resume message to the network or the base station in the prior art (The first, second, third and fourth cases) schematic diagram; if it returns a successful recovery (RRC Resume shown in Figure 1), after the UE enters the connected state; the base station can also reply to the RRC connection establishment Success (RRC Setup shown in Figure 2), that is, the RRC connection is restored and fall back to the RRC connected state (connection), and the UE enters the connected state; if the base station replies with an RRC release message containing the suspended configuration (RRC Release with Suspend shown in Figure 3) Configuration), the UE still stays in the Inactive state; if the network rejects the RRC recovery request, it can return a rejection message (RRC Reject shown in Figure 4), and the UE is still in the Inactive state.
  • RRC Resume shown in Figure 1
  • the base station can also reply to the RRC connection establishment Success (RRC Setup shown in Figure 2), that is, the RRC connection is restored
  • each beam corresponds to a synchronization signal block (Synchronization Signal and PBCH block, SSB for short), which can be accessed by a user terminal (UE).
  • the base station indicates the association relationship between the random access resource and the SSB through the system information.
  • the UE first measures the downlink reference signal, selects an appropriate SSB to camp on, and the UE selects the physical random access channel associated with the selected SSB (Physical Random Access Channel).
  • PRACH for short
  • the base station detects the preamble sent on the corresponding PRACH time-frequency domain resource, and can determine the appropriate SSB for the user terminal according to the association relationship between the random access resource and the SSB, and use this
  • the SSB sends a random access response.
  • 3GPP has established an R17 small data packet transmission project, and the UE can perform small data packet transmission in the Inactive state.
  • the UE In the establishment of the project, it is described to support data transmission on pre-configured uplink resources.
  • the configured grant supported by NR is mainly used for ultra-reliable low-latency communications (Ultra Reliable Low Latency Communications, referred to as URLLC) scenarios, and only supports use in the connected state, both the base station and the UE know the SSB where the UE resides, so the UE sends uplink After the data, the base station can know in which SSB to send the response message to the UE.
  • URLLC Ultra Reliable Low Latency Communications
  • NR supports Semi-Persistent Scheduling (SPS) for downlink data transmission.
  • SPS Semi-Persistent Scheduling
  • the base station will specifically configure SPS according to the UE's service, including parameters such as period, HARQ process, and MCS.
  • the base station performs SPS activation through the Physical Downlink Control Channel (PDCCH).
  • the PDCCH scheduling resource is the subsequent transmission resource.
  • the base station can update the scheduling resource through the PDCCH, or deactivate the SPS resource through the PDCCH.
  • the NR supports Configured Grant for uplink data transmission.
  • the base station pre-configures resources in advance or activates the pre-configured resources through PDCCH, including period, time-frequency domain resources, repetition information, and modulation and coding strategy (Modulation and Coding Scheme, MCS for short), etc.
  • the UE sends data on the corresponding resource according to the configuration.
  • the base station cannot determine which SSB is used to reply the response message to the UE in the disconnected state. If all available SSBs are used to send the response message to the UE, it will cause unnecessary waste of resources and increase the power of the base station. Consumption.
  • an embodiment of the present invention provides a beam determination method during data transmission.
  • the method includes: determining a target SSB for responding to data transmission; sending uplink data to a base station, and when sending the uplink data Indicate the target SSB, so that the base station uses the target SSB to send response information in response to the uplink data; wherein, the SSB and the beam have a one-to-one correspondence.
  • the base station can send a response message to the UE on the target SSB according to the UE's instruction, thereby avoiding unnecessary waste of resources and saving the power consumption of the base station.
  • an embodiment of the present invention provides a first beam determination method during data transmission, and the method includes:
  • Step S501 Determine a target SSB used to respond to data transmission
  • Step S502 Send uplink data to a base station, and indicate the target SSB when sending the uplink data, so that the base station uses the target SSB to send response information in response to the uplink data;
  • the SSB and the beam have a one-to-one correspondence.
  • the first beam determination method during data transmission shown in FIG. 5 can be executed by the UE side in NR communication.
  • the UE sends uplink data to the base station, it sends the indication information of the target SSB used by the base station to respond to the UE's data transmission together with the uplink data (for example, the indication information can be integrated in the uplink data or independent of the uplink data)
  • the base station can determine the SSB that sends the response message to the UE according to the UE's instruction, and send the response message to the UE through the target SSB.
  • the UE may determine a suitable SSB as the target SSB by measuring the downlink reference signal.
  • the uplink data is data transmitted by the UE to the network side (or base station) on the PUR.
  • the UE in the Inactive state indicates the target SSB when sending uplink data.
  • the UE may select the camped SSB as the target SSB according to the signal strength corresponding to each beam.
  • the base station when the UE indicates the target SSB when sending uplink data to the network side, the base station can directly send the response message corresponding to the uplink data to the UE through the target SSB, without sending response messages to all SSBs configured for the base station , Thereby avoiding unnecessary waste of resources and saving the power consumption of the base station.
  • the indication of the target SSB when sending uplink data includes: when sending uplink data, a demodulation reference signal (Demodulation Reference Signal, abbreviated as the uplink data) is associated with the uplink data.
  • the DMRS demodulation Reference Signal
  • the DMRS resource and a preset mapping relationship indirectly indicate the target SSB, and the preset mapping relationship includes a one-to-one correspondence between the DMRS resource and the SSB.
  • the preset mapping relationship is a mapping relationship between multiple SSBs and DMRS resources configured by the base station, and the preset mapping relationship is consistent between the base station and the UE.
  • the UE can associate the DMRS resource corresponding to the target SSB when sending uplink data through a preset mapping relationship to indicate the target SSB.
  • the base station can decode the UE according to the DMRS resource managed by the uplink data and the preset mapping relationship. The indicated target SSB.
  • indirectly indicating the target SSB through a DMRS resource associated with the uplink data and a preset mapping relationship includes: determining that the target SSB corresponds to the target SSB according to the target SSB and the preset mapping relationship
  • the specific steps for the UE to indicate the target SSB when sending uplink data may include: after determining the target SSB, associate the uplink data with the corresponding DRMS resource on the uplink resource pre-configured for the UE by the base station, and the base station can decode the DRMS resource of the uplink data. Determine the target SSB indicated by the UE, and use the target SSB to send a response message to the UE.
  • the DMRS resource is a DMRS sequence (sequence) and/or a DMRS port (port).
  • the DMRS resource can be a DMRS sequence resource or a DMRS port resource, or a combination of a DMRS sequence and a DMRS port.
  • the DMRS sequence can be set to correspond to the SSB one-to-one; or the DMRS port corresponds to the SSB one-to-one; or the DMRS sequence and the DMRS port are combined to correspond to the SSB one-to-one.
  • the preset mapping relationship may correspond to different SSBs through DMRS sequences or DMRS ports.
  • Figure 6 is a schematic diagram of the preset mapping relationship between DMRS sequence or port and SSB in an application example; wherein, when the DMRS sequence corresponds to different SSBs, for example, if the base station transmits 4 SSBs (referred to as SSB0, SSB1, SSB2, and SSB3), the preset mapping relationship may indicate that 4 different DMRS sequences (DMRS sequence 0, DMRS sequence 1, DMRS sequence 2, and DMRS sequence 3) need to be used to correspond to different SSBs.
  • DMRS sequence 0 corresponds to SSB0
  • DMRS sequence 1 corresponds to SSB1
  • DMRS sequence 2 corresponds to SSB2
  • DMRS sequence 3 corresponds to SSB3.
  • the preset mapping relationship can indicate 4 DMRS port numbers (DMRS port 0, DMRS port 1, DMRS port 2, DMRS port 3) corresponding to different SSBs, DMRS port 0 Corresponding to SSB0, DMRS port 1 corresponds to SSB1, DMRS port 2 corresponds to SSB2, and DMRS port 3 corresponds to SSB3.
  • the UE uses DMRS sequence 2 or DMRS port 2 to transmit uplink data on the pre-configured time-frequency domain resources.
  • the preset mapping relationship can correspond to different SSBs by combining DMRS sequence and DMRS port. It can be sorted in the order of DMRS sequence and then DMRS port, or DMRS port and then DMRS sequence. The order of sorting.
  • Figure 7 is a schematic diagram of the preset mapping relationship between DMRS sequence and port combination and SSB in an application example; if the base station transmits 16 SSBs (SSB0, SSB1,..., SSB15), such as configuring 8 DMRS sequences ( DMRS sequence 0, DMRS sequence 1,..., DMRS sequence 7) and 2 DMRS ports (DMRS port 0 and DMRS port 1).
  • SSB0, SSB1,..., SSB15 such as configuring 8 DMRS sequences ( DMRS sequence 0, DMRS sequence 1,..., DMRS sequence 7) and 2 DMRS ports (DMRS port 0 and DMRS port 1).
  • the preset mapping relationship can indicate that DMRS sequence 0 and DMRS port 0 correspond to SSB0 and DMRS sequence 0 DMRS port 1 corresponds to SSB1, DMRS sequence 1 and DMRS port 0 correspond to SSB2, and DMRS sequence 1 and DMRS port 1 correspond to SSB3...
  • the target SSB determined by the UE is SSB2
  • corresponding to DMRS sequence 1 and DMRS port 0 the UE should use DMRS sequence 1 on the time-frequency resources configured for the UE to associate uplink data with DMRS port 0 for transmission.
  • the preset relationship may also indicate that DMRS sequence 0 and DMRS port 0 correspond to SSB0, DMRS sequence 1 and DMRS port 0 correspond to SSB1, and DMRS sequence 2 and DMRS port 0 correspond to SSB2...
  • the target SSB determined by the UE is SSB2, corresponding to DMRS port 0 and DMRS sequence 2, the UE should use DMRS sequence 2 on the time-frequency resources configured for the UE to associate uplink data with DMRS port 0 for transmission.
  • the preset mapping relationship between the DMRS resource and the SSB may be the mapping relationship between the DMRS sequence and the SSB, or the mapping relationship between the DMRS port and the SSB, or the combination of the DMRS sequence and the DMRS port.
  • the mapping relationship between SSBs enables the UE to indicate the target SSB when transmitting uplink data through DMRS resources.
  • the beam determination method during data transmission may further include: receiving system information or dedicated RRC signaling to obtain the DMRS resource configuration and the preset mapping relationship.
  • the network side can indicate the DMRS resource configured by the base station and the preset mapping relationship between the DMRS resource and the SSB through system information or UE-specific radio resource control (Radio Resource Control, RRC) signaling.
  • RRC Radio Resource Control
  • the base station indicates the preset mapping relationship between the DMRS resource and the SSB in the RRC signaling that instructs the UE to enter the Inactive state and configures dedicated pre-configured uplink resources for the UE.
  • the base station may also configure the DMRS resource and indicate the preset mapping relationship between the DMRS resource and the SSB when the remaining minimum system information (Remaining Minimum System Information, referred to as RMSI) instructs the cell to enable the pre-configured uplink resource transmission function.
  • RMSI Remaining Minimum System Information
  • step S502 indicating the target SSB when sending uplink data includes: directly indicating the target SSB by using report signaling when sending uplink data.
  • step S502 the manner in which the UE indicates the target SSB when sending uplink data may also be that the UE reports the target SSB while sending the uplink data on the pre-configured uplink resources.
  • the report signaling may include the index of the target SSB, so that the base station determines the target SSB according to the index. That is, the network side (or the base station) and the UE side unify a set of SSB index mechanisms to indicate the corresponding SSB through the SSB index.
  • the reporting signaling is carried in a media access control layer control element (Media Access Control-Control Element, MAC-CE for short) or uplink control information (Uplink Control Link, UCI for short).
  • Media Access Control-Control Element Media Access Control-Control Element, MAC-CE for short
  • uplink control information Uplink Control Link, UCI for short
  • a MAC CE is newly defined to carry the index of the target SSB to indicate the target SSB determined by the UE.
  • the length of the MAC CE can be determined according to the number of SSBs configured by the base station or the number of SSBs supported by the cell.
  • the newly defined MAC CE and the uplink data to be transmitted by the UE are multiplexed on pre-configured uplink resources for transmission, and a new logical channel identifier (logical channel identifier, LCID for short) is reserved for identifying the MAC CE.
  • the newly defined MAC CE and the uplink data to be transmitted by the UE are multiplexed for transmission on pre-configured uplink resources.
  • a MAC with a fixed length of 8 bits or 16 bits can be used to indicate the target SSB determined by the UE.
  • Each bit (bit) represents one SSB, which can be from low to high or from high. The lower order corresponds to the sequential SSB. When the corresponding bit is set to 1, it indicates that the SSB of the corresponding index is the target SSB.
  • Figure 8 is a schematic diagram of using 8-bit MAC CE to indicate the target SSB in an application example. The bits indicate the corresponding SSB from low to high. If SSB2 is the target SSB, the corresponding bit value of SSB2 Set to 1. Please refer to Figure 9.
  • Figure 9 is a schematic diagram of a 16-bit MAC CE indicating the target SSB in an application example. If SSB2 is the target SSB, the value of the bit corresponding to SSB2 is set to 1, and the remaining bits are all set to 0.
  • grouping can be used.
  • the number of SSBs in each group is 8 SSBs.
  • Two rows can be used to indicate the index of the SSB transmitted by the base station.
  • the first row identifies the group ( group) identification
  • the second line identifies the SSB position in the group (indicated by SSB ⁇ N, where N is 0,1,2,...7, respectively representing 8 SSBs in a group).
  • the SSB indexes in each group are arranged in ascending order, and the UE determines the corresponding group and position within the group of the corresponding SSB according to the index of the target SSB, and determines the bit setting of MAC CE. Refer to Figure 10.
  • bits can be used to directly indicate the index of the target SSB.
  • a binary value of 4 bits can be used to correspond to 16 SSBs, that is, "0000 ⁇ 1111", or a binary value of 6 bits can be used.
  • the value corresponds to 64 SSBs, namely "000000 ⁇ 111111".
  • the number of bits required is not limited here, and it is applicable to any range of bits (bit).
  • the specific MAC CE format can be seen in Figure 11 below.
  • Figure 11 is a schematic diagram of an application example in which MAC CE uses a binary value to directly indicate the target SSB; the MAC CE shown in this figure contains a total of 8 bits, and 6 bits indicate the SSB index.
  • the other 2 bits are reserved bits (that is, the R bit in the figure). If the target SSB index determined by the UE is SSB8, the corresponding SSB index (index) is set to 000111. The number of bits required for the SSB index depends on the number of SSBs transmitted by the base station, and the location of the MAC CE where the corresponding bit is located is not limited here.
  • the UE also indicates the appropriate SSB of the UE through UCI when sending uplink data on the pre-configured uplink resources. The base station decodes the received uplink data on the pre-configured uplink resources, determines the target SSB through the setting of UCI, and uses the target SSB to send a downlink response message to the UE.
  • a UCI is embedded in the head of the data sent by the pre-configured resource to carry the index of the target SSB to indicate the target SSB.
  • the byte length of the data (Data) in the UCI depends on the number of SSBs transmitted by the base station. Please refer to Figure 12, which provides a schematic diagram of a UCI structure; for example, if the base station transmits 8 SSBs, the SSB index can be identified by the binary value of 3 bits; if SSB3 is the target SSB determined by the UE, the corresponding 3 bits should be used. Set to "011". If the base station transmits 64 SSBs, the 6bits binary value can be used to identify the SSB index. If SSB3 is a suitable SSB for the UE, the corresponding 6bits should be set to "000011".
  • the UE may also directly indicate the target SSB through report signaling in the uplink data sent to the base station, so that the base station determines the target SSB according to the decoded uplink data, and then uses the target SSB to send a downlink response message to the UE.
  • the report signaling can be carried by MACCE or UCI.
  • an embodiment of the present invention also provides a second beam determination method during data transmission.
  • the second beam determination method during data transmission may be executed by the network side (or base station side), and the method includes the following steps:
  • Step S1301 receiving uplink data sent by the UE, and determining a target SSB used to respond to data transmission according to the uplink data;
  • Step S1302 using the target SSB to send response information in response to the uplink data
  • the SSB and the beam have a one-to-one correspondence.
  • the determining the target SSB used to respond to data transmission according to the uplink data sent by the UE includes: determining the DMRS resource associated with the uplink data, and determining the DMRS associated with the uplink data through a preset mapping relationship For the target SSB corresponding to the resource, the preset mapping relationship includes a one-to-one correspondence between the DMRS resource and the SSB.
  • the DMRS resource is a DMRS sequence and/or a DMRS port.
  • the method further includes: indicating the DMRS resource configuration and the preset mapping relationship through system information or dedicated RRC signaling sent to the UE.
  • the uplink data includes report signaling that directly indicates the target SSB
  • the determining the target SSB for responding to data transmission according to the uplink data sent by the UE includes: according to the report signaling Determine the target SSB.
  • the report signaling is carried in a medium access control unit or uplink control information.
  • an embodiment of the present invention provides a schematic structural diagram of a first beam determination device during data transmission, and the device includes:
  • the target SSB determining module 1401 is used to determine the target SSB used to respond to data transmission;
  • the uplink data sending module 1402 is configured to send uplink data to a base station, and indicate the target SSB when sending the uplink data, so that the base station uses the target SSB to send response information in response to the uplink data;
  • the SSB and the beam have a one-to-one correspondence.
  • the above-mentioned beam determination device during data transmission may correspond to a chip with a beam determination function during data transmission in the UE, or a chip with a data processing function, such as a system-on-a-chip (System-On-a-Chip). Chip, SOC), baseband chip, etc.; or corresponding to a chip module in the UE including a chip with a beam determination function during data transmission; or corresponding to a chip module with a data processing function chip, or corresponding to the UE.
  • a chip with a beam determination function during data transmission in the UE or a chip with a data processing function, such as a system-on-a-chip (System-On-a-Chip). Chip, SOC), baseband chip, etc.
  • a chip module in the UE including a chip with a beam determination function during data transmission
  • a chip module with a data processing function chip or corresponding to the UE.
  • an embodiment of the present invention also provides a second beam determination device during data transmission, and the device includes:
  • An uplink data receiving module 1501 configured to receive uplink data sent by a UE, where the UE indicates a target SSB used to respond to data transmission when sending the uplink data;
  • the response module 1502 is configured to use the target SSB to send response information in response to the uplink data;
  • the SSB and the beam have a one-to-one correspondence.
  • the above-mentioned beam determination device during data transmission may correspond to a chip with a beam determination function during data transmission in a base station, or a chip with a data processing function, such as a system-on-a-chip (System-On-a-Chip). Chip, SOC), baseband chip, etc.; or corresponding to the base station including a chip module with a beam determination function chip for data transmission; or corresponding to a chip module with a data processing function chip, or corresponding to the base station.
  • the various modules/units contained in the various devices and products described in the above embodiments they may be software modules/units, hardware modules/units, or part software modules/units, and partly software modules/units. It is a hardware module/unit.
  • the various modules/units contained therein can be implemented in the form of hardware such as circuits, or at least part of the modules/units can be implemented in the form of software programs. Runs on the integrated processor inside the chip, and the remaining (if any) part of the modules/units can be implemented by hardware methods such as circuits; for each device and product applied to or integrated in the chip module, the modules/units contained therein can be All are implemented by hardware such as circuits. Different modules/units can be located in the same component (such as a chip, circuit module, etc.) or different components of the chip module, or at least part of the modules/units can be implemented by software programs.
  • the software program runs on the processor integrated inside the chip module, and the remaining (if any) part of the modules/units can be implemented in hardware methods such as circuits; for each device and product that is applied to or integrated in the terminal, the modules contained therein All modules/units can be implemented by hardware such as circuits, and different modules/units can be located in the same component (for example, chip, circuit module, etc.) or different components in the terminal, or at least part of the modules/units can be implemented in the form of software programs Implementation, the software program runs on the processor integrated inside the terminal, and the remaining (if any) part of the modules/units can be implemented by hardware such as circuits.
  • the embodiment of the present invention also provides a storage medium on which computer instructions are stored, and the computer instructions execute the steps of the method described in FIG. 5 or FIG. 13 when the computer instructions are run.
  • the storage medium may be a computer-readable storage medium, for example, it may include a non-volatile memory (non-volatile) or a non-transitory (non-transitory) memory, and may also include an optical disk, a mechanical hard disk, a solid state hard disk, and the like.
  • the processor may be a central processing unit (central processing unit, CPU for short), and the processor may also be other general-purpose processors or digital signal processors (DSP for short). ), application specific integrated circuit (ASIC for short), field programmable gate array (FPGA for short) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (read-only memory, ROM for short), programmable read-only memory (programmable ROM, PROM for short), erasable PROM (EPROM for short) , Electrically Erasable Programmable Read-Only Memory (EPROM, EEPROM for short) or flash memory.
  • the volatile memory may be a random access memory (random access memory, RAM for short), which is used as an external cache.
  • random access memory random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous Dynamic random access memory
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM Synchronously connect dynamic random access memory
  • DRAM direct memory bus random access memory
  • DR RAM direct rambus RAM
  • An embodiment of the present invention also provides a UE, which includes the device described in FIG. 14, or includes a memory and a processor, the memory stores computer instructions that can run on the processor, and the processor runs The steps of the method shown in FIG. 5 are executed when the computer is instructed.
  • the terminal includes, but is not limited to, terminal devices such as mobile phones, computers, and tablets.
  • the terminal in the embodiment of the present application may refer to various forms of user equipment (user equipment, UE for short), access terminal, user unit, user station, mobile station, mobile station (mobile station, MS), remote Station, remote terminal, mobile equipment, user terminal, terminal equipment, wireless communication equipment, user agent, or user device.
  • user equipment user equipment, UE for short
  • access terminal user unit
  • user station mobile station
  • mobile station mobile station
  • remote Station remote terminal
  • mobile equipment user terminal
  • terminal equipment wireless communication equipment
  • user agent user agent
  • the terminal device can also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), Handheld devices with wireless communication functions, computing devices, or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in the future 5G network, or future evolution of the public land mobile communication network (Public Land Mobile Network, referred to as The terminal equipment in the PLMN) is not limited in the embodiment of the present application.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • An embodiment of the present invention also provides a base station, including the device described in FIG. 15, or including a memory and a processor, the memory stores computer instructions that can run on the processor, and the processor runs The steps of the method shown in FIG. 13 are executed when the computer is instructed.
  • the base station (BS for short) in the embodiments of the present application may also be referred to as base station equipment, and is a device deployed on a radio access network (RAN) to provide wireless communication functions.
  • the equipment that provides the base station function in the 2G network includes a base transceiver station (English: base transceiver station, referred to as BTS), the equipment that provides the base station function in the 3G network includes the NodeB (NodeB), and the equipment that provides the base station function in the 4G network Including evolved NodeB (eNB), in wireless local area networks (WLAN), the equipment that provides base station functions is access point (AP), 5G New Radio (New Radio) , Referred to as NR) in the gNB that provides base station functions, and the evolving Node B (ng-eNB), where the gNB and the terminal use NR technology for communication, and the ng-eNB and the terminal use E-UTRA (Evolved Universal Terrestrial Radio Access) technology for communication, both gNB and ng-eNB
  • the base station controller in the embodiments of this application is a device for managing base stations, such as a base station controller (BSC) in a 2G network, and a radio network controller (RNC) in a 3G network. ), can also refer to the device that controls and manages the base station in the new communication system in the future.
  • BSC base station controller
  • RNC radio network controller
  • the network-side network in the embodiment of the present invention refers to a communication network that provides communication services for terminals, including base stations of the wireless access network, may also include base station controllers of the wireless access network, and may also include devices on the core network side.

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Abstract

一种数据传输时的波束确定方法及装置、存储介质、UE、基站，其中，所述方法包括：确定用于响应数据传输的目标SSB；向基站发送上行数据，并在发送所述上行数据时指示所述目标SSB，以使所述基站使用所述目标SSB发送响应于所述上行数据的响应信息；其中，所述SSB和波束一一对应。通过该方法，能够避免基站不必要的资源浪费，节省基站的功耗。

Description

数据传输时的波束确定方法及装置、存储介质、UE、基站
本申请要求2020年4月27日提交中国专利局、申请号为202010345568.2、发明名称为“数据传输时的波束确定方法及装置、存储介质、UE、基站”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域，具体地涉及一种数据传输时的波束确定方法及装置、存储介质、UE、基站。
背景技术
在***通信协议(4Generation，简称4G)的长期演进(Long Term Evolution，简称LTE)中，可支持预配置的上行资源(Preconfigured UL Resource，简称PUR)上进行数据传输，UE所在的服务小区可以看成是单波束(beam)操作，基站可直接向该beam的UE发送响应消息。
在第五代通信协议(5Generation，简称5G)新空口(New Radio，简称NR)中，支持多波束(beam)操作，每个波束对应一个同步信号块(Synchronization Signal and PBCH block，简称SSB)，都能接入用户设备(User Equipment，简称UE)。在标准文本(release(Rel)-15/Rel-16，简称R15/R16)中，UE在没有数据收发的时候，基站可以指示UE进行不活跃(Inactive)状态，处于Inactive状态的UE可通过随机接入(Random Access，简称RA)过程转入连接态。标准文本Rel-17(简称R17)支持Inactive状态下UE在PUR上进行数据传输，发送上行数据。然而如果基站配置是多SSB操作，UE传完上行数据后，基站需要知道在哪个SSB给UE发送响应消息。如果基站用所有可用的SSB给UE发响应消息，能保证UE收到响应消息。 然而，基站在所有SSB传输响应消息会导致不必要的资源浪费，且增加了基站的功率消耗。
发明内容
本发明解决的技术问题是如何避免基站在所有SSB传输响应消息造成的资源浪费以及功率消耗。
为解决上述技术问题，本发明实施例提供一种数据传输时的波束确定方法，所述方法包括：确定用于响应数据传输的目标SSB；向基站发送上行数据，并在发送所述上行数据时指示所述目标SSB，以使所述基站使用所述目标SSB发送响应于所述上行数据的响应信息；其中，所述SSB和波束一一对应。
可选的，所述在发送上行数据时指示所述目标SSB，包括：在发送上行数据时，通过上行数据关联的DMRS资源与预设映射关系间接指示所述目标SSB，所述预设映射关系包含DMRS资源与SSB之间的一一对应关系。
可选的，所述在发送上行数据时，通过上行数据关联的DMRS资源与预设映射关系间接指示所述目标SSB，包括：根据所述目标SSB和预设映射关系，确定目标SSB对应的DMRS资源；在发送所述上行数据时，使用所述目标SSB对应的DMRS资源关联所述上行数据。
可选的，所述DMRS资源为DMRS序列和/或DMRS端口。
可选的，所述波束确定方法还包括：接收***信息或专用RRC信令获取DMRS资源配置以及所述预设映射关系。
可选的，所述在发送上行数据时指示所述目标SSB，包括：在发送上行数据时，使用上报信令直接指示所述目标SSB。
可选的，所述上报信令承载于介质访问控制单元或上行控制信息。
本发明实施例还提供一种数据传输时的波束确定方法，所述方法包括：接收UE发送的上行数据，根据所述上行数据确定用于响应数据传输的目标SSB；使用所述目标SSB发送响应于所述上行数据的响应信息；其中，所述SSB和波束一一对应。
可选的，所述根据所述UE发送的所述上行数据确定用于响应数据传输的目标SSB包括：确定所述上行数据关联的DMRS资源，通过预设映射关系确定所述上行数据关联的DMRS资源对应的所述目标SSB，所述预设映射关系包含DMRS资源与SSB之间的一一对应关系。
可选的，所述DMRS资源为DMRS序列和/或DMRS端口。
可选的，所述波束确定方法还包括：通过***信息或发给所述UE的专用RRC信令指示DMRS资源配置以及所述预设映射关系。
可选的，所述上行数据包括直接指示所述目标SSB的上报信令，所述根据所述UE发送的所述上行数据确定用于响应数据传输的目标SSB，包括：根据所述上报信令确定所述目标SSB。
可选的，所述上报信令承载于介质访问控制单元或上行控制信息。
本发明实施例还提供一种数据传输时的波束确定装置，所述装置包括：目标SSB确定模块，用于确定用于响应数据传输的目标SSB；上行数据发送模块，用于向基站发送上行数据，并在发送所述上行数据时指示所述目标SSB，以使所述基站使用所述目标SSB发送响应于所述上行数据的响应信息；其中，所述SSB和波束一一对应。
本发明实施例还提供一种数据传输时的波束确定装置，所述装置包括：上行数据接收模块，用于接收UE发送的上行数据，根据所述上行数据确定用于响应数据传输的目标SSB；响应模块，用于使用所述目标SSB发送响应于所述上行数据的响应信息；其中，所述SSB和波束一一对应。
本发明实施例还提供一种存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现上述任一项所述方法的步骤。
本发明实施例还提供一种UE，包括所述的装置，或者，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器执行所述计算机程序时实现上述任一项所述方法的步骤。
本发明实施例还提供一种基站，包括所述的装置，或者，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器执行所述计算机程序时实现上述任一项所述方法的步骤。
与现有技术相比，本发明实施例的技术方案具有以下有益效果：
本发明实施例提供一种数据传输时的波束确定方法，所述方法包括：确定用于响应数据传输的目标SSB；向基站发送上行数据，并在发送所述上行数据时指示所述目标SSB，以使所述基站使用所述目标SSB发送响应于所述上行数据的响应信息；其中，所述SSB和波束一一对应。本发明实施例的方案，在UE向网络侧发送上行数据时指示目标SSB，则基站可直接通过目标SSB向UE发送与上行数据对应的响应消息，无需对该基站配置的多SSB都发送响应消息，从而避免不必要的资源浪费，节省基站的功耗。
进一步地，DMRS资源与SSB之间的预设映射关系可以为DMRS序列和SSB之间的映射关系，或DMRS端口和SSB之间的映射关系，也可以是DMRS序列与DMRS端口结合起来与SSB之间的映射关系，使得UE通过DMRS资源传输上行数据时指示目标SSB。
进一步地，UE还可在向基站发送的上行数据中通过上报信令直接指示目标SSB，以使基站根据解码的上行数据确定目标SSB后，并用目标SSB向UE发送下行的响应消息。该上报信令可由MACCE或UCI承载。
附图说明
图1是现有技术中UE向网络发送恢复请求之后的第一种情况的 示意图；
图2是现有技术中UE向网络发送恢复请求之后的第二种情况的示意图；
图3是现有技术中UE向网络发送恢复请求之后的第三种情况的示意图；
图4是现有技术中UE向网络发送恢复请求之后的第四种情况的示意图；
图5是本发明实施例的第一种数据传输时的波束确定方法的流程示意图；
图6是本发明一应用实例中DMRS序列或端口与SSB的预设映射关系的示意图；
图7是本发明一应用实例中DMRS序列和端口结合与SSB的预设映射关系的示意图；
图8是本发明一应用实例中用8个比特的MAC CE指示目标SSB的示意图；
图9是本发明一应用实例中用16个比特的MAC CE指示目标SSB的示意图；
图10是本发明一应用实例中MAC CE用分组方式指示目标SSB的示意图；
图11是一应用实例中MAC CE用二进制取值直接指示目标SSB的示意图；
图12是本发明实施例的一种UCI的结构示意图；
图13是本发明实施例的第二种数据传输时的波束确定方法的流程示意图；
图14是本发明实施例的第一种数据传输时的波束确定装置的结 构示意图；
图15是本发明实施例的第二种数据传输时的波束确定装置的结构示意图。
具体实施方式
根据背景技术可知，LTE支持空闲(IDLE)态在预配置上行资源上传输数据。基站可在连接态通过无线资源控制(Radio Resource Control，简称RRC)连接释放消息为UE配置进入空闲态进行数据传输的预配置上行资源，基站可对预配置的资源进行更新。UE在预配置的上行资源进行数据传输之后，需要监听对应的响应窗接收基站发送的响应消息。
现有技术中在R15版本中，NR引入不活跃(Inactive)状态，当UE没有数据收发的时候，基站可以指示UE进行Inactive状态。UE在Inactive状态和空闲(IDLE)状态下的行为相同，此时，UE不执行监听PDCCH、不进行测量，只执行参考信号的检测、小区重选，监听寻呼(paging)/***消息(System Information，简称SI)等行为。其中，UE在Inactive状态和idle状态的区别是：在Inactive状态下，基站和UE都保存着UE收发数据的上下文，当有数据需重新收发时，UE可以通过RACH过程进行快速的恢复(resume)，无需重新进行安全模式的激活操作、能力上报、信息配置等操作。由此，简化了UE转为激活状态时信令交互过程，降低了信令开销，且降低了UE的功耗。
在R16版本中，不支持UE在Inactive状态进行用户层面的数据传输，如果UE有数据传输，需要转到连接态再进行传输。通过RRC resume过程可以通过4步RACH和2步RACH过程快速的完成RRC恢复，此时UE向基站发送恢复消息，该恢复消息可以为RRC恢复请求(图1至图4中示出的RRC Resume Request)，基站收到RRC Resume Request，对应的响应消息如下：请参见图1至图4，图1至图4为现有技术中UE向网络(Network)或基站发送RRC connection  resume消息之后的四种(第一种、第二种、第三种和第四种)情况的示意图；若向其返回恢复成功(图1所示的RRC Resume)，UE进入连接态后；基站也可回复RRC连接建立成功(图2所示的RRC Setup)，即RRC连接恢复回退到RRC连接态(connection)，UE进入连接态；若基站回复包含暂停配置的RRC释放消息(图3所示的RRC Release with Suspend Configuration)，UE仍驻留Inactive状态；若网络拒绝RRC恢复请求，可返回拒绝消息(图4所示的RRC Reject)，UE仍在Inactive状态。
在NR中，支持多波束(beam)操作，每个波束对应一个同步信号块(Synchronization Signal and PBCH block,简称SSB)，都能接入用户终端(UE)。基站通过***信息指示随机接入资源与SSB的关联关系，UE先进行下行参考信号的测量，选择一个合适的SSB进行驻留，UE在选择的SSB关联的物理随机接入信道(Physical Random Access Channel，简称PRACH)资源上传输一个前导码(preamble)，基站通过检测到对应PRACH时频域资源上发送的前导码，根据随机接入资源与SSB的关联关系能够确定用户终端合适的SSB，并用此SSB进行随机接入响应的发送。
目前3GPP通过一个R17小数据包传输的立项，在Inactive状态下UE可进行小数据包传输。在立项中，描述支持在预配置的上行资源上进行数据传输。由于NR支持的configured grant主要用于极可靠低延迟通信(Ultra Reliable Low Latency Communications，简称URLLC)的场景，且仅支持在连接态使用，基站和UE都知道UE驻留的SSB，所以UE发送上行数据之后基站能够知道在哪个SSB给UE发送响应消息。
NR支持半持续调度(Semi-Persistent Scheduling，简称SPS)用于下行数据传输，基站会根据UE的业务特定配置SPS，具体包括周期，HARQ进程以及MCS等参数。基站通过物理下行控制信道(Physical Downlink Control Channel，简称PDCCH)进行SPS激活，PDCCH调度资源为后续传输资源，基站可以通过PDCCH更新调度 资源，也可以通过PDCCH去激活SPS资源。
NR支持配置授权(Configured Grant)用于上行数据传输。基站提前预配置资源或通过PDCCH激活预配置的资源，包括周期，时频域资源，重发(repetition)信息以及调制与编码策略(Modulation and Coding Scheme，简称MCS)等。UE根据配置在对应资源上发送数据。
然而，现有技术中，基站无法确定用哪个SSB给处于非连接态的UE回复响应消息，若用所有可用的SSB给UE发响应消息，会导致不必要的资源浪费，且增加了基站的功率消耗。
为解决该问题，本发明实施例提供了一种数据传输时的波束确定方法，所述方法包括：确定用于响应数据传输的目标SSB；向基站发送上行数据，并在发送所述上行数据时指示所述目标SSB，以使所述基站使用所述目标SSB发送响应于所述上行数据的响应信息；其中，所述SSB和波束一一对应。
通过该方法，基站能够根据UE的指示，在目标SSB上给UE发送响应消息，从而避免不必要的资源浪费，节省基站的功耗。
为使本发明的上述目的、特征和有益效果能够更为明显易懂，下面结合附图对本发明的具体实施例做详细的说明。
请参见图5，本发明实施例提供第一种数据传输时的波束确定方法，所述方法包括：
步骤S501，确定用于响应数据传输的目标SSB；
步骤S502，向基站发送上行数据，并在发送所述上行数据时指示所述目标SSB，以使所述基站使用所述目标SSB发送响应于所述上行数据的响应信息；
其中，所述SSB和波束一一对应。
图5所示的第一种数据传输时的波束确定方法可由NR通信中的UE侧执行。UE在向基站发送上行数据时，将基站用于响应UE的数据传输的目标SSB的指示信息与上行数据一并发送(例如，指示信息可以集成在上行数据中，或者独立于上行数据之外)，基站可根据 UE的指示确定其向UE发送响应消息的SSB，并通过目标SSB向UE发送响应消息。
可选的，UE可通过测量下行参考信号确定合适的SSB作为目标SSB。
可选的，上行数据为UE在PUR上向网络侧(或者基站)传输的数据。
可选的，处于Inactive状态的UE在发送上行数据时指示目标SSB，此时UE可根据各个波束(beam)对应的信号强度等情况，选择驻留的SSB作为目标SSB。
通过本实施例的方案，在UE向网络侧发送上行数据时指示目标SSB，则基站可直接通过目标SSB向UE发送与上行数据对应的响应消息，无需对该基站配置的多SSB都发送响应消息，从而避免不必要的资源浪费，节省基站的功耗。
在一个实施例中，请继续参见图5，步骤S502所述在发送上行数据时指示所述目标SSB，包括：在发送上行数据时，通过上行数据关联的解调参考信号(Demodulation Reference Signal，简称DMRS)资源与预设映射关系间接指示所述目标SSB，所述预设映射关系包含DMRS资源与SSB之间的一一对应关系。
其中，预设映射关系为基站配置的多个SSB与DMRS资源之间的映射关系，该预设映射关系在基站与UE端一致。UE可通过预设映射关系在发送上行数据时关联目标SSB对应的DMRS资源以指示目标SSB，基站在解码UE发送的上行数据时，可根据上行数据管理的DMRS资源与预设映射关系解码出UE指示的目标SSB。
可选的，所述在发送上行数据时，通过上行数据关联的DMRS资源与预设映射关系间接指示所述目标SSB，包括：根据所述目标SSB和预设映射关系，确定所述目标SSB对应的目标DMRS资源；在发送所述上行数据时，使用所述目标SSB对应的DMRS资源关联所述上行数据。
UE在发送上行数据时指示目标SSB的具体步骤可以包括：在确 定目标SSB之后，在基站预配置给UE的上行资源上用对应的DRMS资源关联上行数据，基站通过解码上行数据的DRMS资源后能够确定UE指示的目标SSB，用目标SSB给UE发送响应消息。
可选的，所述DMRS资源为DMRS序列(sequence)和/或DMRS端口(port)。
DMRS资源可以是DMRS序列资源或DMRS端口资源，或DMRS序列和DMRS端口结合的资源。根据小区传输SSB的数量，可设置DMRS序列与SSB一一对应；或通过DMRS端口与SSB一一对应；或通过DMRS序列和DMRS端口结合与SSB一一对应。
可选的，若基站传输的SSB数量较少，预设映射关系可通过DMRS序列或DMRS端口来对应不同的SSB。
请参见图6，图6为一个应用实例中DMRS序列或端口与SSB的预设映射关系的示意图；其中，通过DMRS序列对应不同的SSB时，例如，若基站传输4个SSB(称为SSB0、SSB1、SSB2和SSB3)，预设映射关系可指示4个不同的DMRS序列(DMRS序列0、DMRS序列1、DMRS序列2和DMRS序列3)需要用于对应不同的SSB。如DMRS序列0对应SSB0，DMRS序列1对应SSB1，DMRS序列2对应SSB2，DMRS序列3对应SSB3。
图6中，通过DMRS端口对应不同的SSB时，例如，预设映射关系可指示4个DMRS端口号(DMRS port0、DMRS port 1、DMRS port 2、DMRS port 3)对应不同的SSB，DMRS port 0对应SSB0，DMRS port 1对应SSB1，DMRS port 2对应SSB2，DMRS port 3对应SSB3。
在上述两个预设映射关系的例子中，当UE确定SSB2为目标的SSB时，则UE在预配置的时频域资源上采用DMRS序列2或DMRS port 2传输上行数据。
可选的，如果SSB数量较多，预设映射关系可通过DMRS序列和DMRS端口结合的方式来对应不同的SSB，可先按DMRS序列再DMRS端口的顺序排序，也可以先DMRS端口再DMRS序列的顺序 排序。
请参见图7，图7为一个应用实例中DMRS序列和端口结合与SSB的预设映射关系的示意图；若基站传输16个SSB(SSB0，SSB1，…，SSB15)，如配置8个DMRS序列(DMRS序列0，DMRS序列1，…，DMRS序列7)和2个DMRS端口(DMRS port 0和DMRS port 1)，此时预设映射关系可指示DMRS序列0和DMRS port 0对应SSB0，DMRS序列0和DMRS port 1对应SSB1，DMRS序列1和DMRS port 0对应SSB2，DMRS序列1和DMRS port 1对应SSB3…。此时，如果UE确定的目标SSB为SSB2，则对应DMRS序列1和DMRS端口0，UE应在配置给UE的时频资源上用DMRS序列1关联上行数据采用DMRS端口0进行传输。
另外，预设关系也可指示DMRS序列0和DMRS port 0对应SSB0，DMRS序列1和DMRS port 0对应SSB1，DMRS序列2和DMRS port 0对应SSB2…。此时，如果UE确定的目标SSB为SSB2，则对应DMRS端口0和DMRS序列2，UE应在配置给UE的时频资源上用DMRS序列2关联上行数据采用DMRS端口0进行传输。
本实施例中，DMRS资源与SSB之间的预设映射关系可以为DMRS序列和SSB之间的映射关系，或DMRS端口和SSB之间的映射关系，也可以是DMRS序列与DMRS端口结合起来与SSB之间的映射关系，使得UE通过DMRS资源传输上行数据时指示目标SSB。
在一个实施例中，上述数据传输时的波束确定方法还可以包括：接收***信息或专用RRC信令获取DMRS资源配置以及所述预设映射关系。
具体地，网络侧(或基站)可通过***信息或UE专用的无线资源控制(Radio Resource Control，简称RRC)信令指示基站配置的DMRS资源、以及DMRS资源与SSB之间的预设映射关系。例如，基站在指示UE进入Inactive状态并给UE配置专用预配置上行资源的RRC信令中指示DMRS资源跟SSB的预设映射关系。
可选的，基站还可以在剩余最小***信息(Remaining Minimum  System Information，简称RMSI)指示小区开启预配置上行资源传输功能的同时配置DMRS资源并指示DMRS资源跟SSB的预设映射关系。
在一个实施例中，请继续参见图5，步骤S502在发送上行数据时指示所述目标SSB，包括：在发送上行数据时，使用上报信令直接指示所述目标SSB。
步骤S502中，UE在发送上行数据时指示目标SSB的方式，还可以为UE在预配置的上行资源上发送上行数据的同时上报目标SSB。
可选的，上报信令可以包括目标SSB的索引，以使得基站根据该索引确定目标SSB。也即，网络侧(或基站)与UE端统一一套SSB的索引机制，以通过SSB的索引指示对应的SSB。
可选的，所述上报信令承载于媒体访问控制层控制单元(Media Access Control-Control Element，简称MAC-CE)或上行控制信息(Uplink Control Link，简称UCI)。
其中，通过新定义一个MAC CE，用于承载目标SSB的索引，以指示UE确定的目标SSB。可根据基站配置的SSB数量或小区支持的SSB数量确定MAC CE的长度。新定义的MAC CE与UE要传输的上行数据复用在预配置的上行资源上传输，预留一个新的逻辑信道标识(逻辑信道标识，简称LCID)用于识别该MAC CE。
可选的，新定义的MAC CE与UE要传输的上行数据复用在预配置的上行资源上传输。
例如：传输8个以下或16个以下SSB可用固定长度为8比特(bits)或16bits的MAC CE指示UE确定的目标SSB，每个比特(bit)代表一个SSB，可从低位到高位或从高位到低位对应按序SSB。当对应bit设置为1时，指示对应索引的SSB为目标SSB。请参见图8，图8为一应用实例中用8个比特的MAC CE指示目标SSB的示意图，比特位从低位到高位指示对应的SSB，若SSB2是目标SSB，则对应SSB2的比特位的值设置为1。请参见图9，图9为一应用实例中用 16个比特的MAC CE指示目标SSB的示意图，若SSB2是目标SSB，对应SSB2的比特位的值设置为1，其余比特位都设置为0。
可选的，基站传输的SSB数量为8个以上时，可采用分组的方式，每组内SSB数量为8个SSB，可以用两行来表示基站传输的SSB的索引，第一行识别组(group)标识，第二行识别组内的SSB位置(以SSB×N表示，其中N为0,1,2,…7，分别表示一组内的8个SSB)。每组内SSB索引按从小到大顺序排列，UE根据目标SSB的索引确定对应SSB所在的对应组以及在组内的位置，确定MAC CE的比特位的设置。请参见图10，图10为一应用实例中MAC CE用分组方式指示目标SSB的示意图；如UE确定的目标SSB索引为SSB28，28mode 8＝3余4，所以对应group3的SSBx3位置都设置为1，其余比特位都设置为0。
可选的，还可通过若干字节(bit)直接指示目标SSB的索引，如，可用4个Bit的二进制取值对应16个SSB，即“0000～1111”，或用6个bit的二进制取值对应64个SSB，即“000000～111111”。所需bit数量在此不做限定，适用于任何范围的比特(bit)数量。具体MAC CE格式可参见下图11，图11为一应用实例中MAC CE用二进制取值直接指示目标SSB的示意图；该图所示的MAC CE共包含8个bit，以6个bit指示SSB索引(index)，另外2个bit为预留位(即图中的R位)，如UE确定的目标SSB索引为SSB8，则对应SSB索引(index)设置为000111。SSB index所需bit数量取决于基站传输的SSB数量，对应bit所在MAC CE的位置在此都不做限定。另外，UE还在预配置的上行资源上发送上行数据时通过UCI指示UE合适的SSB。基站在预配置的上行资源解码收到的上行数据，通过UCI的设置确定目标SSB，并用目标SSB向UE发送下行的响应消息。
可选的，在预配置资源发送的数据头(head)嵌入一个UCI，用于承载目标SSB的索引，以指示目标SSB。UCI中数据(Data)的字节长度取决于基站传输的SSB数量。请参见图12，图12提供了一种UCI的结构示意图；例如，若基站传输8个SSB，可通过3bits的二 进制取值来识别SSB索引；如果SSB3是UE确定的目标SSB，则对应3bits应设置为“011”。若基站传输64个SSB，可通过6bits的二进制取值来识别SSB索引。如SSB3是UE合适的SSB，则对应6bits应设置为“000011”。
本实施例中，UE还可在向基站发送的上行数据中通过上报信令直接指示目标SSB，以使基站根据解码的上行数据确定目标SSB后，并用目标SSB向UE发送下行的响应消息。该上报信令可由MACCE或UCI承载。
请参见图13，本发明实施例还提供第二种数据传输时的波束确定方法，第二种数据传输时的波束确定方法可由网络侧(或基站侧)执行，所述方法包括以下步骤：
步骤S1301，接收UE发送的上行数据，根据所述上行数据确定用于响应数据传输的目标SSB；
步骤S1302，使用所述目标SSB发送响应于所述上行数据的响应信息；
其中，所述SSB和波束一一对应。
可选的，所述根据所述UE发送的所述上行数据确定用于响应数据传输的目标SSB包括：确定所述上行数据关联的DMRS资源，通过预设映射关系确定所述上行数据关联的DMRS资源对应的所述目标SSB，所述预设映射关系包含DMRS资源与SSB之间的一一对应关系。
可选的，所述DMRS资源为DMRS序列和/或DMRS端口。
可选的，所述方法还包括：通过***信息或发给所述UE的专用RRC信令指示DMRS资源配置以及所述预设映射关系。
可选的，所述上行数据包括直接指示所述目标SSB的上报信令，所述根据所述UE发送的所述上行数据确定用于响应数据传输的目标SSB，包括：根据所述上报信令确定所述目标SSB。
可选的，所述上报信令承载于介质访问控制单元或上行控制信息。
对于图13所述的第二种数据传输时的波束确定方法，其工作原理、工作方式的更多内容，可以参照上述图5至图12中关于网络侧或基站侧的相关描述，这里不再赘述。
请参见图14，本发明实施例提供第一种数据传输时的波束确定装置的结构示意图，所述装置包括：
目标SSB确定模块1401，用于确定用于响应数据传输的目标SSB；
上行数据发送模块1402，用于向基站发送上行数据，并在发送所述上行数据时指示所述目标SSB，以使所述基站使用所述目标SSB发送响应于所述上行数据的响应信息；
其中，所述SSB和波束一一对应。
关于第一种数据传输时的波束确定装置的工作原理、工作方式的更多内容，可以参照上述图5中的相关描述，这里不再赘述。
在具体实施中，上述的数据传输时的波束确定装置可以对应于UE中具有数据传输时的波束确定功能的芯片，或者对应于具有数据处理功能的芯片，例如片上***(System-On-a-Chip，SOC)、基带芯片等；或者对应于UE中包括具有数据传输时的波束确定功能芯片的芯片模组；或者对应于具有数据处理功能芯片的芯片模组，或者对应于UE。
请参见图15，本发明实施例还提供第二种数据传输时的波束确定装置，所述装置包括：
上行数据接收模块1501，用于接收UE发送的上行数据，所述UE在发送所述上行数据时指示用于响应数据传输的目标SSB；
响应模块1502，用于使用所述目标SSB发送响应于所述上行数据的响应信息；
其中，所述SSB和波束一一对应。
关于第二种数据传输时的波束确定装置的工作原理、工作方式的更多内容，可以参照上述图13中的相关描述，这里不再赘述。
在具体实施中，上述的数据传输时的波束确定装置可以对应于基 站中具有数据传输时的波束确定功能的芯片，或者对应于具有数据处理功能的芯片，例如片上***(System-On-a-Chip，SOC)、基带芯片等；或者对应于基站中包括具有数据传输时的波束确定功能芯片的芯片模组；或者对应于具有数据处理功能芯片的芯片模组，或者对应于基站。在具体实施中，关于上述实施例中描述的各个装置、产品包含的各个模块/单元，其可以是软件模块/单元，也可以是硬件模块/单元，或者也可以部分是软件模块/单元，部分是硬件模块/单元。
例如，对于应用于或集成于芯片的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于芯片模组的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于芯片模组的同一组件(例如芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片模组内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于终端的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于终端内同一组件(例如，芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于终端内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现。
需要指出的是，本方明技术方案可适用于5G通信***，还可适用于4G、3G通信***，还可适用于未来新的各种通信***，例如6G、7G等。
本发明实施例还提供了一种存储介质，其上存储有计算机指令，所述计算机指令运行时执行上述图5或图13所述方法的步骤。所述存储介质可以是计算机可读存储介质，例如可以包括非挥发性存储器(non-volatile)或者非瞬态(non-transitory)存储器，还可以包括光 盘、机械硬盘、固态硬盘等。
具体地，在本发明实施例中，所述处理器可以为中央处理单元(central processing unit，简称CPU)，该处理器还可以是其他通用处理器、数字信号处理器(digital signal processor，简称DSP)、专用集成电路(application specific integrated circuit，简称ASIC)、现成可编程门阵列(field programmable gate array，简称FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，简称ROM)、可编程只读存储器(programmable ROM，简称PROM)、可擦除可编程只读存储器(erasable PROM，简称EPROM)、电可擦除可编程只读存储器(electrically EPROM，简称EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，简称RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的随机存取存储器(random access memory，简称RAM)可用，例如静态随机存取存储器(static RAM，简称SRAM)、动态随机存取存储器(DRAM)、同步动态随机存取存储器(synchronous DRAM，简称SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，简称DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，简称ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，简称SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，简称DR RAM)。
本发明实施例还提供了一种UE，包括图14所述的装置，或者，包括存储器和处理器，所述存储器上存储有能够在所述处理器上运行的计算机指令，所述处理器运行所述计算机指令时执行图5所示方法的步骤。所述终端包括但不限于手机、计算机、平板电脑等终端设备。
具体地，本申请实施例中的终端可以指各种形式的用户设备(user  equipment，简称UE)、接入终端、用户单元、用户站、移动站、移动台(mobile station，建成MS)、远方站、远程终端、移动设备、用户终端、终端设备(terminal equipment)、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，简称SIP)电话、无线本地环路(Wireless Local Loop，简称WLL)站、个人数字处理(Personal Digital Assistant，简称PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，简称PLMN)中的终端设备等，本申请实施例对此并不限定。
本发明实施例还提供了一种基站，包括图15所述的装置，或者，包括存储器和处理器，所述存储器上存储有能够在所述处理器上运行的计算机指令，所述处理器运行所述计算机指令时执行图13所示方法的步骤。
本申请实施例中的基站(base station，简称BS)，也可称为基站设备，是一种部署在无线接入网(RAN)用以提供无线通信功能的装置。例如在2G网络中提供基站功能的设备包括基地无线收发站(英文：base transceiver station,简称BTS)，3G网络中提供基站功能的设备包括节点B(NodeB)，在4G网络中提供基站功能的设备包括演进的节点B(evolved NodeB，eNB)，在无线局域网络(wireless local area networks，简称WLAN)中，提供基站功能的设备为接入点(access point，简称AP)，5G新无线(New Radio，简称NR)中的提供基站功能的设备gNB,以及继续演进的节点B(ng-eNB),其中gNB和终端之间采用NR技术进行通信，ng-eNB和终端之间采用E-UTRA(Evolved Universal Terrestrial Radio Access)技术进行通信，gNB和ng-eNB均可连接到5G核心网。本申请实施例中的基站还包含在未来新的通信***中提供基站功能的设备等。
本申请实施例中的基站控制器，是一种管理基站的装置，例如 2G网络中的基站控制器(base station controller，简称BSC)、3G网络中的无线网络控制器(radio network controller，简称RNC)、还可指未来新的通信***中控制管理基站的装置。
本发明实施例中的网络侧network是指为终端提供通信服务的通信网络，包含无线接入网的基站，还可以包含无线接入网的基站控制器，还可以包含核心网侧的设备。
虽然本发明披露如上，但本发明并非限定于此。任何本领域技术人员，在不脱离本发明的精神和范围内，均可作各种更动与修改，因此本发明的保护范围应当以权利要求所限定的范围为准。

Claims (18)

  1. 一种数据传输时的波束确定方法，其特征在于，所述方法包括：
    确定用于响应数据传输的目标SSB；
    向基站发送上行数据，并在发送所述上行数据时指示所述目标SSB，以使所述基站使用所述目标SSB发送响应于所述上行数据的响应信息；
    其中，所述SSB和波束一一对应。
  2. 根据权利要求1所述的方法，其特征在于，所述在发送上行数据时指示所述目标SSB，包括：
    在发送上行数据时，通过上行数据关联的DMRS资源与预设映射关系间接指示所述目标SSB，所述预设映射关系包含DMRS资源与SSB之间的一一对应关系。
  3. 根据权利要求2所述的方法，其特征在于，所述在发送上行数据时，通过上行数据关联的DMRS资源与预设映射关系间接指示所述目标SSB，包括：
    根据所述目标SSB和预设映射关系，确定目标SSB对应的DMRS资源；
    在发送所述上行数据时，使用所述目标SSB对应的DMRS资源关联所述上行数据。
  4. 根据权利要求2所述的方法，其特征在于，所述DMRS资源为DMRS序列和/或DMRS端口。
  5. 根据权利要求2至4任一所述的方法，其特征在于，所述方法还包括：
    接收***信息或专用RRC信令获取DMRS资源配置以及所述预设映射关系。
  6. 根据权利要求1所述的方法，其特征在于，所述在发送上行数据时指示所述目标SSB，包括：
    在发送上行数据时，使用上报信令直接指示所述目标SSB。
  7. 根据权利要求6所述的方法，其特征在于，所述上报信令承载于介质访问控制单元或上行控制信息。
  8. 一种数据传输时的波束确定方法，其特征在于，所述方法包括：
    接收UE发送的上行数据，根据所述上行数据确定用于响应数据传输的目标SSB；
    使用所述目标SSB发送响应于所述上行数据的响应信息；
    其中，所述SSB和波束一一对应。
  9. 根据权利要求8所述的方法，其特征在于，所述根据所述UE发送的所述上行数据确定用于响应数据传输的目标SSB包括：
    确定所述上行数据关联的DMRS资源，通过预设映射关系确定所述上行数据关联的DMRS资源对应的所述目标SSB，所述预设映射关系包含DMRS资源与SSB之间的一一对应关系。
  10. 根据权利要求9所述的方法，其特征在于，所述DMRS资源为DMRS序列和/或DMRS端口。
  11. 根据权利要求9或10所述的方法，其特征在于，所述方法还包括：
    通过***信息或发给所述UE的专用RRC信令指示DMRS资源配置以及所述预设映射关系。
  12. 根据权利要求8所述的方法，其特征在于，所述上行数据包括直接指示所述目标SSB的上报信令，所述根据所述UE发送的所述上行数据确定用于响应数据传输的目标SSB，包括：
    根据所述上报信令确定所述目标SSB。
  13. 根据权利要求12所述的方法，其特征在于，所述上报信令承载于介质访问控制单元或上行控制信息。
  14. 一种数据传输时的波束确定装置，其特征在于，所述装置包括：
    目标SSB确定模块，用于确定用于响应数据传输的目标SSB；
    上行数据发送模块，用于向基站发送上行数据，并在发送所述上行数据时指示所述目标SSB，以使所述基站使用所述目标SSB发送响应于所述上行数据的响应信息；
    其中，所述SSB和波束一一对应。
  15. 一种数据传输时的波束确定装置，其特征在于，所述装置包括：
    上行数据接收模块，用于接收UE发送的上行数据，根据所述上行数据确定用于响应数据传输的目标SSB；
    响应模块，用于使用所述目标SSB发送响应于所述上行数据的响应信息；
    其中，所述SSB和波束一一对应。
  16. 一种存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现权利要求1至7任一项，或8至13任一项所述方法的步骤。
  17. 一种UE，包括如权利要求14所述的装置，或者，包括存储器和处理器，所述存储器存储有计算机程序，其特征在于，所述处理器执行所述计算机程序时实现权利要求1至7任一项所述方法的步骤。
  18. 一种基站，包括如权利要求15所述的装置，或者，包括存储器和处理器，所述存储器存储有计算机程序，其特征在于，所述处理器执行所述计算机程序时实现权利要求8至13任一项所述方法的步骤。
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