WO2022228160A1 - Procédé de transmission de sl-ssb et appareil associé - Google Patents

Procédé de transmission de sl-ssb et appareil associé Download PDF

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Publication number
WO2022228160A1
WO2022228160A1 PCT/CN2022/087247 CN2022087247W WO2022228160A1 WO 2022228160 A1 WO2022228160 A1 WO 2022228160A1 CN 2022087247 W CN2022087247 W CN 2022087247W WO 2022228160 A1 WO2022228160 A1 WO 2022228160A1
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Prior art keywords
time slot
ssb
time
time slots
slot
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PCT/CN2022/087247
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English (en)
Chinese (zh)
Inventor
周欢
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北京紫光展锐通信技术有限公司
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Publication of WO2022228160A1 publication Critical patent/WO2022228160A1/fr

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    • 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
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to an SL-SSB transmission method and related devices.
  • the SideLink Synchronization Signal Block (SideLink Synchronization Signal Block) SL-SSB is sent at intervals. Due to the failure of Listen Before Talk (LBT) in some frequency bands, the SL-SSB's The send location could not be sent successfully.
  • LBT Listen Before Talk
  • the present application provides an SL-SSB transmission method and a related device, so as to provide multiple timeslot positions for transmitting SL-SSBs with the same QCL relationship within a transmission period, so that it is convenient for user equipment to transmit SL-SSBs in a certain SL-SSB.
  • Slot position LBT failure SL-SSB can be sent at another slot position with the same QCL relationship.
  • an embodiment of the present application provides an SL-SSB transmission method, including:
  • the first user equipment sends the first SL-SSB in the first time slot of the first transmission period, the first time slot is any time slot in the first time slot set, and the first time slot set includes the A plurality of time slots of the first transmission cycle, the plurality of time slots are used to transmit the SL-SSB with the quasi-co-located QCL relationship.
  • the first user equipment can select to send the first SL-SSB in any time slot in the first time slot set of the first transmission period, and many The time slots are used for sending SL-SSBs with quasi-co-located QCL relationship, so that the user equipment fails LBT at a certain SL-SSB time slot position, and can send SL-SSB at another time slot position with the same QCL relationship.
  • an embodiment of the present application provides an SL-SSB transmission method, including:
  • the second user equipment receives the first SL-SSB in the first time slot of the first transmission period, the first time slot is any time slot in the first time slot set, and the first time slot set includes the A plurality of time slots of the first transmission cycle, the plurality of time slots are used to transmit the SL-SSB with the quasi-co-located QCL relationship.
  • an embodiment of the present application provides an SL-SSB transmission device, including:
  • a sending unit configured to send the first SL-SSB in the first time slot of the first transmission period, where the first time slot is any time slot in the first time slot set, and the first time slot set includes all multiple time slots in the first transmission cycle, the multiple time slots are used to transmit the SL-SSB with the quasi-co-located QCL relationship.
  • an embodiment of the present application provides an SL-SSB transmission device, including:
  • a receiving unit configured to receive the first SL-SSB in the first time slot of the first transmission period, the first time slot is any time slot in the first time slot set, and the first time slot set includes all the time slots multiple time slots in the first transmission cycle, the multiple time slots are used to transmit the SL-SSB with the quasi-co-located QCL relationship.
  • embodiments of the present application provide a user equipment, a processor, a memory, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor , the program includes instructions for performing the steps in the method of the first aspect.
  • embodiments of the present application provide a computer-readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to execute the method in the first aspect or the second aspect. step instruction.
  • an embodiment of the present application provides a chip, where the chip is configured to output a first SL-SSB in a first time slot of a first transmission cycle, where the first time slot is one of the first time slot sets For any time slot, the first time slot set includes a plurality of time slots in the first transmission period, and the plurality of time slots are used for transmitting SL-SSBs with a quasi-co-located QCL relationship.
  • an embodiment of the present application provides a chip module, including a transceiver component and a chip, the chip is configured to send a first SL-SSB in a first time slot of a first transmission cycle through the transceiver component, so The first time slot is any time slot in the first time slot set, and the first time slot set includes a plurality of time slots in the first transmission period, and the plurality of time slots are used for transmitting data with quasi-common address the SL-SSB of the QCL relationship.
  • an embodiment of the present application provides a chip, where the chip is configured to acquire a first SL-SSB in a first time slot of a first transmission cycle, where the first time slot is a SL-SSB in a first time slot set
  • the first time slot set includes a plurality of time slots in the first transmission period, and the plurality of time slots are used for transmitting SL-SSBs with a quasi-co-located QCL relationship.
  • an embodiment of the present application provides a chip module, including a transceiver component and a chip, the chip is configured to receive a first SL-SSB in a first time slot of a first transmission cycle through the transceiver component, so The first time slot is any time slot in the first time slot set, and the first time slot set includes a plurality of time slots in the first transmission period, and the plurality of time slots are used for transmitting data with quasi-common address the SL-SSB of the QCL relationship.
  • 1a is a schematic diagram of an SL-SSB transmission opportunity in an SL-SSB transmission period provided by an embodiment of the present application;
  • FIG. 1b is an example diagram of transmitting an SSB with a QCL relationship in an NR system provided by an embodiment of the present application;
  • FIG. 1c is an architectural diagram of a mobile communication system 10 provided by an embodiment of the present application.
  • FIG. 1d is a schematic structural diagram of a first user equipment 100 provided by an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for transmitting an SSB provided by an embodiment of the present application
  • FIG. 3 is a block diagram of functional units of an SSB transmission device 3 provided in an embodiment of the present application.
  • FIG. 4 is a block diagram of functional units of another SSB transmission device 4 provided in an embodiment of the present application.
  • FIG. 5 is a block diagram of functional units of an SSB transmission device 5 provided by an embodiment of the present application.
  • FIG. 6 is a block diagram of functional units of another SSB transmission apparatus 6 provided in an embodiment of the present application.
  • At least one refers to one or more, and a plurality refers to two or more.
  • a plurality refers to two or more.
  • association relationship of associated objects it means that there can be three kinds of relationships, for example, A and/or B, it can mean: A exists alone, A and B exist at the same time, and B exists alone, where A , B can be singular or plural.
  • the character "/” generally indicates that the associated objects are an "or” relationship.
  • At least one (item) of the following or its similar expression refers to any combination of these items, including any combination of single item (item) or plural item (item).
  • At least one (a) of a, b or c may represent: a, b, c, a and b, a and c, b and c, or a, b and c, where a, b, c Each can be an element itself, or a collection containing one or more elements.
  • system and “network” are often used interchangeably, but those skilled in the art can understand their meanings.
  • the user equipment is a device with a wireless transceiver function, which may be referred to as a terminal (terminal), a terminal device, a mobile station (mobile station, MS), a mobile terminal (mobile terminal, MT), and an access terminal device.
  • a terminal terminal
  • a terminal device terminal device
  • a mobile station mobile station
  • a mobile terminal mobile terminal
  • MT mobile terminal
  • an access terminal device a terminal device
  • vehicle terminal equipment industrial control terminal equipment, UE unit, UE station, mobile station, remote station, remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE agent or UE device, etc.
  • User equipment may be stationary or mobile. It should be noted that the user equipment may support at least one wireless communication technology, such as LTE, new radio (NR), wideband code division multiple access (WCDMA), and the like.
  • LTE long term evolution
  • NR new radio
  • WCDMA wideband code division multiple access
  • the user equipment may be a mobile phone (mobile phone), a tablet computer (pad), a desktop computer, a notebook computer, an all-in-one computer, a vehicle terminal, a virtual reality (VR) terminal device, an augmented reality (AR) terminal Equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, wireless terminals in smart grid, transportation safety Wireless terminals in (transportation safety), wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless Wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, wearable devices, future mobile communications
  • the user equipment may also be a device with a transceiving function, such as a chip system. Wherein, the chip system may be a transceiving function
  • the network device in the embodiment of the present application is a device on the network side, including an access network device and a core network device.
  • the access network device in the embodiments of the present application is a device that provides a wireless communication function for user equipment, and may also be referred to as an access network element, a radio access network (radio access network, RAN) device, and the like.
  • the access network device may support at least one wireless communication technology, such as LTE, NR, WCDMA, and the like.
  • the access network equipment includes, but is not limited to: a next-generation base station (generation nodeB, gNB), an evolved node B (evolved node B, eNB), wireless Network controller (radio network controller, RNC), node B (node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved node B, or home node B, HNB), baseband unit (BBU), transmitting and receiving point (TRP), transmitting point (TP), mobile switching center, etc.
  • generation nodeB, gNB next-generation base station
  • evolved node B, eNB evolved node B
  • wireless Network controller radio network controller
  • node B node B
  • base station controller base station controller
  • BTS base transceiver station
  • home base station for example, home evolved node B, or home node B, HNB
  • BBU baseband unit
  • TRP transmitting and receiving point
  • the access network device may also be a wireless controller, a centralized unit (centralized unit, CU), and/or a distributed unit (DU) in a cloud radio access network (cloud radio access network, CRAN) scenario, or an access network.
  • the network access device may be a relay station, an access point, a vehicle-mounted device, a terminal device, a wearable device, and an access network device in future mobile communications or an access network device in a future evolved PLMN, and the like.
  • the access network device may also be an apparatus having a wireless communication function for the user equipment, such as a chip system.
  • the system-on-chip may include chips, and may also include other discrete devices.
  • the network element of the core network is a functional entity, which may be a core network device or the like, and is located in the core network.
  • AMF access and mobility management function
  • Synchronization Signal Block In this embodiment of the present application, in a New Radio (NR) system, a primary synchronization signal (Primary Synchronization Signals, PSS), a secondary synchronization signal (Secondary Synchronization Signals, SSS), and a physical broadcast channel (Physical Broadcast Channel, PBCH) Together they form the SSB.
  • PSS Primary Synchronization Signals
  • SSS Secondary Synchronization Signals
  • PBCH Physical Broadcast Channel
  • Sidelink synchronization signal block SL-SSB Sidelink synchronization signal block SL-SSB.
  • the version Release 16 protocol introduces research on the auxiliary link SideLink (also known as side link, side link, side chain, etc.) in vehicle wireless communication technology (vehicle to everything, V2X).
  • the way of sending SL-SSB between user equipments includes three parameters, which are the transmission period (also known as the transmission period, the transmission window, the transmission window, and the demodulation reference signal (DRS).
  • the number of opportunities for sending SL-SSB also known as SL-SSB sending opportunity, SL-SSB sending position, SL-SSB sending window, SL-SSB transmission position, SL-SSB transmission window, etc.
  • the offset of the first SSB sending position in the transmission period relative to the boundary of the transmission period and the interval between multiple SSB sending positions.
  • the side physical broadcast channel (Side Physical Broadcast Channel, SPBCH) in the SL-SSB contains a 7-bit slot index, and the slot index is used to indicate the index of the SL-SSB in one transmission period.
  • the UE can perform time slot synchronization within the frame according to the time slot index, that is, obtain the time slot index.
  • the transmission period P1 of the SL-SSB is 160ms
  • the offset of the first SL-SSB relative to the boundary of the transmission period P1 is 30ms
  • QCL Quasi Co-Location
  • the transmission mechanism of SSB in NR system means that in an unlicensed frequency band, in a single SSB transmission period (configured by the DiscoveryBurst-WindowLength parameter), there are multiple SSB transmission positions.
  • the UE assumes that in the serving cell, multiple SSBs are transmitted within the same window or across multiple windows.
  • the average gain, "QCL-TypeA” and “QCL-TypeD” attributes are quasi-co-located.
  • PBCH demodulation reference signal Demodulation Reference Signal, DMRS
  • DMRS Demodulation Reference Signal
  • the UE can according to The value determines the SSB index. And the UE assumes that in a transmission period, the number of SSB transmission opportunities is less than or equal to And the transmission times of the SSB indicated by the same SSB index is less than or equal to 1.
  • This QCL relationship can handle the scenario where the UE fails to access at the location of SSB0 but succeeds only at the location of SSB1.
  • the base station can choose to send 8 SSBs at the positions of SSB1-SSB8 (the base station gNB sends SSBs), and the base station gNB sends SSBs.
  • the corresponding position SSB0 cannot be sent due to the failure of the LBT to listen first and then talk.
  • the embodiments of the present application may be applied to any wireless communication system including a sidelink, such as a vehicle wireless communication technology.
  • FIG. 1c is an architectural diagram of a communication system 10 provided by an embodiment of the present application.
  • the communication system 10 includes a first user equipment 100 , a second user equipment 200 and a network device 300 , and the first user equipment 100 is in communication connection with the network device 300 and the second user equipment 200 , respectively.
  • FIG. 1c is only an exemplary illustration of a communication system, and does not constitute a limitation to the communication system of the embodiment of the present application.
  • the communication system 10 may include multiple user equipments, network equipments, and the like.
  • the communication systems and service scenarios described in the embodiments of the present disclosure are for the purpose of illustrating the technical solutions of the embodiments of the present disclosure more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure.
  • the evolution of new business scenarios and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.
  • FIG. 1d is a schematic structural diagram of the first user equipment 100 (the same applies to the second user equipment 200), the first user equipment 100 provided in this embodiment of the present application includes a processor 110, a memory 120, a communication interface 130, and a or more programs 121, the one or more programs 121 are stored in the memory 120 and are configured to be executed by the processor 110, the programs 121 include the steps for executing the method described in the method embodiments of the present application The operation performed by the device on the side of the first user equipment in the method.
  • the SL-SSB is sent at intervals. Due to the LBT failure in some frequency bands, the sending position of the SL-SSB cannot be successfully sent at this time.
  • the embodiments of the present application provide an SL-SSB transmission method and a related device, so as to provide multiple timeslot positions for transmitting SL-SSBs with the same QCL relationship within a transmission period, so that it is convenient for user equipment to If LBT fails at a certain SL-SSB slot position, the SL-SSB can be sent at another slot position with the same QCL relationship. Effectively resist the impact of LBT failure on sidechain transmission.
  • FIG. 2 is a schematic flowchart of an SSB transmission method provided by an embodiment of the present application, which is applied to the user equipment 100 and the equipment on the network side in the mobile communication system 10 as shown in FIG. 1a, including the following steps:
  • Step 201 the first user equipment sends the first SL-SSB in the first time slot of the first transmission period, the first time slot is any time slot in the first time slot set, the first time slot set Including a plurality of time slots of the first transmission period, the plurality of time slots are used to transmit SL-SSBs with a quasi-co-located QCL relationship.
  • the second user equipment receives the first SL-SSB in the first time slot of the first transmission period, the first time slot is any time slot in the first time slot set, and the first time slot set Including a plurality of time slots of the first transmission period, the plurality of time slots are used to transmit SL-SSBs with a quasi-co-located QCL relationship.
  • the number of SL-SSBs transmitted in the first time slot set is less than or equal to the number of time slots R of multiple time slots, and the multiple time slot sets corresponding to the first transmission period are used to transmit QCL relationships Multiple SL-SSBs that are different from each other.
  • the PBCH DMRS sequence index which can be based on this Determine the offset offset of the first time slot for transmitting SL-SSB in the current transmission cycle relative to the initial time slot of the transmission cycle.
  • the specific method can be as follows
  • the having a QCL relationship means that the "QCL-TypeA" and "QCL-TypeD" attributes are quasi-co-located.
  • the first transmission period corresponds to a time domain resource of an unlicensed frequency band.
  • the plurality of time slots of the first set of time slots are consecutive time slots.
  • the number of the multiple time sequences may be 2, 3, etc., which is not uniquely limited here.
  • the continuous time slots refer to time slots without intervals, such as time slot 1, time slot 2, time slot 3, and so on.
  • the first user equipment can quickly select the time slot with successful LBT on the multiple continuous time slots to transmit the SL-SSB, so as to avoid LBT failure due to
  • the plurality of time slots includes a second time slot; the second time slot is used to transmit a second SL-SSB having a quasi-co-located QCL relationship with the first SL-SSB;
  • the first slot index in the first SL-SSB is the same as the second slot index in the second SL-SSB.
  • the second time slot is not sent, and if the LBT in the first time slot fails and cannot be sent, the second time slot is sent and the first SL-SSB has a QCL.
  • the second SL-SSB of the relationship if the first time slot of the first transmission cycle is successfully sent, the second time slot is not sent, and if the LBT in the first time slot fails and cannot be sent, the second time slot is sent and the first SL-SSB has a QCL.
  • the second SL-SSB of the relationship is the first time slot of the first transmission cycle.
  • the SPBCHs of multiple SL-SSBs corresponding to multiple time slots in the first time slot set share the same sidelink SL master information block (master information block, MIB) content
  • the SL-MIB includes a time slot index slot index
  • the time slot index is used to indicate the time slot position of the first time slot in which multiple time slots of the current time slot set are sorted in time order
  • the transmission SL in the current time slot set can be determined by demodulating the reference signal DMRS.
  • - SSB's slot offset relative to the first slot can be determined by demodulating the reference signal DMRS.
  • the first time slot index is used to indicate a time slot position of a first time slot of the plurality of time slots ordered in time sequence.
  • time slot index in the SPBCH of SL-SSB1 transmitted by time slot 2 and SL-SSB1 transmitted by time slot 3 Both indicate the slot 2 position.
  • the plurality of time slots includes a third time slot
  • the third time slot is used to transmit a third SL-SSB having a QCL relationship with the first SL-SSB;
  • the first slot index in the first SL-SSB is different from the third slot index in the third SL-SSB.
  • the first slot index is used to indicate the slot position of the first slot
  • the third slot index is used to indicate the slot position of the third slot
  • the SPBCH of the SL-SSB transmitted on each time slot in the first time slot set, and the time slot position indicated by the time slot index of the SPBCH is the current time slot position.
  • the first time slot set includes time slot 2 and time slot 3
  • time slot 2 of transmission cycle 1 transmits SL-SSB1
  • time slot 3 of transmission cycle 2 transmits SL-SSB2
  • the index indicates the position of time slot 2 in transmission cycle 1
  • the time slot index carried by the SPBCH of SL-SSB2 indicates the position of time slot 3 in transmission cycle 2.
  • the SPBCHs in the multiple SL-SSBs do not share the same MIB content, that is, the time slot index indicated in each SPBCH corresponds to the actual time slot position.
  • the number of time slots of the plurality of time slots is R, R is an integer greater than 1, and R is configured by a first high layer parameter.
  • the configuration manners of the first high-layer parameters include but are not limited to the following manners.
  • the first high-level parameter may be carried in a message delivered by the network device to the first user equipment, and the message may be Radio Resource Control (Radio Resource Control, RRC) signaling or the like.
  • RRC Radio Resource Control
  • the first high-level parameter may be stipulated by the protocol.
  • the number of time slots in the first time slot set can be configured through the first high layer parameter.
  • a plurality of time slots in the first time slot set are discontinuous time slots, and a time slot interval between any two time slots in the first time slot set is an integer of a preset time slot interval times.
  • the configuration manner of the preset time slot interval includes but is not limited to the following manners.
  • the first user equipment may determine the size of the preset time slot interval according to the protocol agreement.
  • Manner b network configuration, for example, the access network device sends a first message to the first user equipment, where the first message carries a parameter used to indicate a preset time slot interval.
  • the integer multiple may be 1 time, 2 times, etc., which is not uniquely limited here.
  • the plurality of time slots include a fourth time slot; the fourth time slot is used to transmit a fourth SL-SSB having a quasi-co-located QCL relationship with the first SL-SSB; the first SL-SSB - The first slot index in the SSB is different from the fourth slot index in the fourth SL-SSB.
  • the first time slot index is used to indicate the time slot position of the first time slot
  • the fourth time slot index is used to indicate the time slot position of the fourth time slot.
  • the first user equipment can select one of the discontinuous time slots in the first time slot set to transmit the SL-SSB, thereby avoiding LBT failure and failing to transmit the corresponding SL-SSB in the current transmission period, improving the transmission efficiency. Efficiency and success rate.
  • the plurality of time slots of the first time slot set are a plurality of intra-group time slots corresponding to a plurality of time slot groups one-to-one, and any two groups of the plurality of intra-group time slots
  • the relative positions of the time slots within the group are the same, and each time slot group in the plurality of time slot groups is used to indicate a time unit including a plurality of consecutive time slots used for transmission of different time slots.
  • SL-SSB of the QCL relationship the relative position within the group is used to indicate the relative position of the timeslot in the timeslot group.
  • the intra-group time slots of any two time slot groups in the plurality of time slot groups are different from each other.
  • the first user equipment can select a time slot with the same relative position in the multiple time slot groups to transmit the SL-SSB, so as to avoid LBT failure and unable to transmit the corresponding SL-SSB in the current transmission period, and improve the transmission efficiency. Efficiency and success rate.
  • the number of the multiple time slot groups corresponds to the number of SL-SSB transmission opportunities included in the first transmission period.
  • the number of the SL-SSB transmission opportunities may be determined according to the time slot length of the first transmission period, the offset of the first time slot for transmitting the SL-SSB, and the time slot interval. For example, if the first transmission period is 160ms, the offset is 30ms, and the interval is 40ms, then the SL-SSB transmission opportunity of the first transmission period corresponds to the four positions of time slot 30, time slot 70, time slot 110, and time slot 150, that is, The number is 4.
  • the first user equipment can determine the number of SL-SSB transmission opportunities included in the first transmission period according to known parameters, and then determine the number of time slot groups.
  • the number of consecutive multiple timeslots indicated by each timeslot group is S, where S is an integer greater than or equal to 1, and S is configured by a second high layer parameter.
  • the configuration manners of the second high-layer parameters include but are not limited to the following manners.
  • the second high-level parameter may be carried in a message delivered by the network device to the first user equipment, and the message may be Radio Resource Control (Radio Resource Control, RRC) signaling or the like.
  • RRC Radio Resource Control
  • the second high-level parameter can be specified by the protocol.
  • the number of time slots in each time slot group can be configured through high layer parameters.
  • the first set of time slots is a set of time slots in a set of Q time slots for transmitting Q SL-SSBs with different QCL relationships
  • the Q The sets of time slots correspond to Y time slots in the first transmission period
  • the Y time slots are used to transmit SL-SSB
  • Q and Y are integers greater than 1.
  • the Y time slots of the first transmission cycle correspond to Y SL-SSB transmission opportunities of the first transmission cycle, and the transmission opportunities may be based on the time slot length of the first transmission cycle, the first transmission SL-SSB transmission opportunity
  • the offset of the time slot of the SSB and the time slot interval are determined. For example, if the first transmission period is 160ms, the offset is 30ms, and the interval is 40ms, then the SL-SSB transmission opportunity of the first transmission period corresponds to the four positions of time slot 30, time slot 70, time slot 110, and time slot 150, that is, The number is 4.
  • the manner of determining the number of timeslots of multiple timeslots in the first timeslot set includes but is not limited to:
  • the fifth time slot included in the first time slot set is time slot 7, and time slot 7 is used to transmit the fifth SL-SSB
  • the first time slot is 3
  • the time slot interval is 4, since time slot 7
  • the first SL-SSB and the fifth SL-SSB average gain, and the "QCL-TypeA" and "QCL-TypeD" attributes are quasi-co-located with the time slot 3 satisfying the above formula relationship.
  • the Y SL-SSB transmission opportunities in the first transmission cycle are divided into Q groups, that is, Q time slot sets, and each SL-SSB transmission opportunity only occupies one time slot, so the first user equipment can choose
  • the SL-SSB is sent in any time slot in the current group, so as to avoid LBT failure and unable to transmit the corresponding SL-SSB in the current transmission period, and improve the transmission efficiency and success rate.
  • the time slot interval of any two time slots in the first time slot set is an integer multiple of a preset time slot interval.
  • the first time slot set includes the first time slot and the fifth time slot
  • the second time slot set includes the sixth time slot and the seventh time slot
  • the time slots of the first time slot and the sixth time slot are The interval can be 1 preset time slot interval
  • the time slot interval between the first time slot and the fifth time slot can be 2 preset time slot intervals
  • the time slot interval between the fifth time slot and the sixth time slot can be 1 a preset time slot interval
  • the time slot interval of the sixth time slot and the seventh time slot may be 2 preset time slot intervals.
  • the configuration manner of the preset time slot interval includes but is not limited to the following manners.
  • the first user equipment may determine the size of the preset time slot interval according to the protocol agreement.
  • Manner b network configuration, for example, the access network device sends a first message to the first user equipment, where the first message carries a parameter used to indicate a preset time slot interval.
  • the integer multiple may be 1 time, 2 times, etc., which is not uniquely limited here.
  • the first user equipment can select any time slot in the first time slot set to transmit the SL-SSB. Since all the SL-SSBs in the first time slot set are allocated into the group, the utilization rate is improved.
  • Q is configured through a third layer parameter.
  • the configuration manner of the third layer parameter includes but is not limited to the following manner.
  • the third layer parameter may be carried in a message delivered by the network device to the first user equipment, and the message may be Radio Resource Control (Radio Resource Control, RRC) signaling or the like.
  • RRC Radio Resource Control
  • the third layer parameter can be agreed by the protocol.
  • the number of packets used to transmit SL-SSBs with different QCL relationships can be configured through high-layer parameters.
  • the first user equipment can select to send the first SL-SSB in any time slot in the first time slot set of the first transmission period, and many The time slots are used for sending SL-SSBs with quasi-co-located QCL relationship, so that the user equipment fails LBT at a certain SL-SSB time slot position, and can send SL-SSB at another time slot position with the same QCL relationship.
  • an example of a time slot configuration of a transmission period assuming that the offset of the first time slot for sending SL-SSB is 2 time slots, and the time slot interval is 5 time slots,
  • the number of sending opportunities for SL-SSBs with different QCL relationships in a single transmission cycle is 4, and the SL-SSBs to be sent include SL-SSB_a, SL-SSB_b, SL-SSB_c, and SL-SSB_d with different QCL relationships.
  • the number of consecutive slots included in the slot set is two.
  • the first user equipment can select the following configuration to transmit SL-SSB, time slot 2 is used to transmit SL-SSB_a, time slot 7 is used to transmit SL-SSB_b, and time slot 12 is used to transmit SL -SSB_c, slot 17 is used to transmit SL-SSB_d.
  • the first user equipment may select the following configuration to transmit SL-SSB: timeslot 2 and timeslot 3 are used to transmit SL-SSB_a, and timeslot 7 and timeslot 8 are used to transmit SL-SSB_b , time slot 12 and time slot 13 are used to transmit SL-SSB_c, and time slot 17 and time slot 18 are used to transmit SL-SSB_d.
  • the offset of the first time slot used for sending SL-SSB is 2 time slots, and the time slot interval is 5 time slots,
  • the number of sending opportunities for SL-SSBs with different QCL relationships in a single transmission cycle is 4, and the SL-SSBs to be sent include SL-SSB_a, SL-SSB_b, SL-SSB_c, and SL-SSB_d with different QCL relationships.
  • the number of consecutive slots included in the slot group is four.
  • the first user equipment can select the following configuration to transmit SL-SSB, time slot 2 is used to transmit SL-SSB_a, time slot 7 is used to transmit SL-SSB_b, and time slot 12 is used to transmit SL -SSB_c, slot 17 is used to transmit SL-SSB_d.
  • the first user equipment may select the following configuration to transmit the SL-SSB:
  • time slot 2 is used to transmit SL-SSB_a
  • time slot 3 is used to transmit SL-SSB_b
  • time slot 4 is used to transmit SL-SSB_c
  • time slot 5 is used to transmit SL-SSB_d;
  • Second time slot group time slot 7 is used to transmit SL-SSB_a, time slot 8 is used to transmit SL-SSB_b, time slot 9 is used to transmit SL-SSB_c, and time slot 10 is used to transmit SL-SSB_d;
  • time slot 12 is used to transmit SL-SSB_a
  • time slot 13 is used to transmit SL-SSB_b
  • time slot 14 is used to transmit SL-SSB_c
  • time slot 15 is used to transmit SL-SSB_d;
  • time slot 17 is used to transmit SL-SSB_a
  • time slot 18 is used to transmit SL-SSB_b
  • time slot 19 is used to transmit SL-SSB_c
  • time slot 20 is used to transmit SL-SSB_d.
  • the first time slot set includes time slot 2, time slot 7, time slot 12 and time slot 17
  • the second time slot set includes time slot 3, time slot 8, time slot 13, time slot 18, and the third time slot set
  • the slot set includes slot 4, slot 9, slot 14, and slot 19 and the fourth slot set includes slot 5, slot 10, slot 15, and slot 20.
  • an example of a time slot configuration of a transmission period assuming that the offset of the first time slot for sending SL-SSB is 2 time slots, and the time slot interval is 5 time slots,
  • the number of SL-SSB transmission opportunities with different QCL relationships in a single transmission cycle is 4, and the SL-SSBs to be sent include SL-SSB_a, SL-SSB_b with different QCL relationships, and SL-SSB transmission opportunities in the current transmission cycle
  • the number of is 4, and the value of Q is 2.
  • the first user equipment may select the following configuration to transmit SL-SSB, time slot 2 is used to transmit SL-SSB_a, and time slot 7 is used to transmit SL-SSB_b.
  • the first user equipment may select the following configuration mode to transmit SL-SSB:
  • the first time slot set, time slot 2 and time slot 12 are used to transmit SL-SSB_a;
  • the second set of time slots, time slot 7 and time slot 17, are used to transmit SL-SSB_b.
  • An embodiment of the present application provides an apparatus for transmitting an SSB, where the apparatus for transmitting an SSB may be a first user equipment.
  • the SSB transmission apparatus is configured to perform the steps performed by the first user equipment in the above SSB transmission method.
  • the SSB transmission apparatus provided in this embodiment of the present application may include modules corresponding to corresponding steps.
  • the SSB transmission device may be divided into functional modules according to the foregoing method examples.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules.
  • the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation.
  • FIG. 3 shows a possible schematic structural diagram of the SSB transmission apparatus involved in the above embodiment.
  • the SSB transmission apparatus 3 is applied to the first user equipment; the apparatus includes:
  • a sending unit 30, configured to send a first SL-SSB in a first time slot of a first transmission cycle, where the first time slot is any time slot in a first time slot set, and the first time slot set includes A plurality of time slots of the first transmission cycle, the plurality of time slots are used for transmitting the SL-SSB with a quasi-co-located QCL relationship.
  • the plurality of time slots of the first set of time slots are consecutive time slots.
  • the plurality of time slots includes a second time slot; the second time slot is used to transmit a second SL-SSB having a quasi-co-located QCL relationship with the first SL-SSB;
  • the first slot index in the first SL-SSB is the same as the second slot index in the second SL-SSB.
  • the first time slot index is used to indicate a time slot position of a first time slot of the plurality of time slots ordered in time sequence.
  • the plurality of time slots includes a third time slot
  • the third time slot is used to transmit a third SL-SSB having a QCL relationship with the first SL-SSB;
  • the first slot index in the first SL-SSB is different from the third slot index in the third SL-SSB.
  • the first slot index is used to indicate the slot position of the first slot
  • the third slot index is used to indicate the slot position of the third slot
  • the number of time slots of the plurality of time slots is R, R is an integer greater than 1, and R is configured by a first high layer parameter.
  • a plurality of time slots in the first time slot set are discontinuous time slots, and a time slot interval between any two time slots in the first time slot set is an integer of a preset time slot interval times.
  • the plurality of time slots of the first time slot set are a plurality of intra-group time slots corresponding to a plurality of time slot groups one-to-one, and any two groups of the plurality of intra-group time slots
  • the relative positions of the time slots within the group are the same, and each time slot group in the plurality of time slot groups is used to indicate a time unit including a plurality of consecutive time slots used for transmission of different time slots.
  • SL-SSB of the QCL relationship the relative position within the group is used to indicate the relative position of the timeslot in the timeslot group.
  • the number of the multiple time slot groups corresponds to the number of SL-SSB transmission opportunities included in the first transmission period.
  • the number of consecutive multiple timeslots indicated by each timeslot group is S, where S is an integer greater than or equal to 1, and S is configured by a second higher layer parameter.
  • the first set of time slots is a set of time slots in a set of Q time slots for transmitting Q SL-SSBs with different QCL relationships
  • the Q The sets of time slots correspond to Y time slots in the first transmission period
  • the Y time slots are used to transmit SL-SSB
  • Q and Y are integers greater than 1.
  • the time slot interval of any two time slots in the first time slot set is an integer multiple of a preset time slot interval.
  • Q is configured through a third layer parameter.
  • the transmission device 4 of the SSB includes: a processing module 40 and a communication module 41 .
  • the processing module 40 is used to control and manage the actions of the transmission device of the SSB, eg, the steps performed by the sending unit 30, and/or other processes used to perform the techniques described herein.
  • the communication module 41 is used to support the interaction between the SSB transmission apparatus and other devices.
  • the SSB transmission apparatus may further include a storage module 42, and the storage module 42 is configured to store program codes and data of the SSB transmission apparatus.
  • the processing module 40 may be a processor or a controller, such as a central processing unit (Central Processing Unit, CPU), a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), ASIC, FPGA or other programmable Logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure.
  • the processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.
  • the communication module 41 may be a transceiver, an RF circuit, a communication interface, or the like.
  • the storage module 42 may be a memory.
  • Both the SSB transmission device 3 and the SSB transmission device 4 can perform the steps performed by the terminal in the SSB transmission method shown in FIG. 2 .
  • An embodiment of the present application provides an apparatus for transmitting an SSB, and the apparatus for transmitting an SSB may be a terminal.
  • the SSB transmission apparatus is configured to perform the steps performed by the terminal in the above SSB transmission method.
  • the SSB transmission apparatus provided in this embodiment of the present application may include modules corresponding to corresponding steps.
  • the SSB transmission device may be divided into functional modules according to the foregoing method examples.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules.
  • the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation.
  • FIG. 5 shows a possible schematic structural diagram of the SSB transmission apparatus involved in the foregoing embodiment.
  • the transmission device 5 of SSB is applied to network equipment; the device includes:
  • a receiving unit 50 configured to receive a first SL-SSB in a first time slot of a first transmission period, where the first time slot is any time slot in a first time slot set, and the first time slot set includes A plurality of time slots of the first transmission cycle, the plurality of time slots are used for transmitting the SL-SSB with a quasi-co-located QCL relationship.
  • the plurality of time slots of the first set of time slots are consecutive time slots.
  • the plurality of time slots includes a second time slot; the second time slot is used to transmit a second SL-SSB having a quasi-co-located QCL relationship with the first SL-SSB;
  • the first slot index in the first SL-SSB is the same as the second slot index in the second SL-SSB.
  • the first time slot index is used to indicate a time slot position of a first time slot of the plurality of time slots ordered in time sequence.
  • the plurality of time slots includes a third time slot
  • the third time slot is used to transmit a third SL-SSB having a QCL relationship with the first SL-SSB;
  • the first slot index in the first SL-SSB is different from the third slot index in the third SL-SSB.
  • the first slot index is used to indicate the slot position of the first slot
  • the third slot index is used to indicate the slot position of the third slot
  • the number of time slots of the plurality of time slots is R, R is an integer greater than 1, and R is configured by a first high layer parameter.
  • a plurality of time slots in the first time slot set are discontinuous time slots, and a time slot interval between any two time slots in the first time slot set is an integer of a preset time slot interval times.
  • the plurality of time slots of the first time slot set are a plurality of intra-group time slots corresponding to a plurality of time slot groups one-to-one, and any two groups of the plurality of intra-group time slots
  • the relative positions of the time slots within the group are the same, and each time slot group in the plurality of time slot groups is used to indicate a time unit including a plurality of consecutive time slots used for transmission of different time slots.
  • SL-SSB of the QCL relationship the relative position within the group is used to indicate the relative position of the timeslot in the timeslot group.
  • the number of the multiple time slot groups corresponds to the number of SL-SSB transmission opportunities included in the first transmission period.
  • the number of consecutive multiple timeslots indicated by each timeslot group is S, where S is an integer greater than or equal to 1, and S is configured by a second higher layer parameter.
  • the first set of time slots is a set of time slots in a set of Q time slots for transmitting Q SL-SSBs with different QCL relationships
  • the Q The sets of time slots correspond to Y time slots in the first transmission period
  • the Y time slots are used to transmit SL-SSB
  • Q and Y are integers greater than 1.
  • the time slot interval of any two time slots in the first time slot set is an integer multiple of a preset time slot interval.
  • Q is configured through a third layer parameter.
  • the transmission device 6 of the SSB includes: a processing module 60 and a communication module 61 .
  • the processing module 60 is used to control and manage the actions of the transmission device of the SSB, eg, the steps performed by the receiving unit 50, and/or other processes used to perform the techniques described herein.
  • the communication module 61 is used to support the interaction between the SSB transmission apparatus and other devices.
  • the SSB transmission apparatus may further include a storage module 62, and the storage module 62 is used to store program codes and data of the SSB transmission apparatus.
  • the processing module 60 may be a processor or a controller, such as a central processing unit (Central Processing Unit, CPU), a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), ASIC, FPGA or other programmable Logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure.
  • the processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.
  • the communication module 61 may be a transceiver, an RF circuit, a communication interface, or the like.
  • the storage module 62 may be a memory.
  • Both the SSB transmission device 5 and the SSB transmission device 6 can perform the steps performed by the terminal in the SSB transmission method shown in FIG. 3 .
  • An embodiment of the present application provides a chip, where the chip is configured to acquire first signaling from a network device, where the first signaling is used to instruct the terminal to deactivate a secondary cell group;
  • the upper layer indicates that the upper layer identification does not exist or indicates that the upper layer identification does not need to be displayed.
  • An embodiment of the present application provides a chip module, including a transceiver component and a chip, where the chip is configured to receive a first signaling from a network device through the transceiver component, where the first signaling is used to instruct the terminal deactivating the secondary cell group; and indicating to the upper layer of the terminal that the upper layer identity does not exist or indicating that the higher layer identity does not need to be displayed.
  • An embodiment of the present application provides a chip, where the chip is configured to output first signaling, where the first signaling is used to instruct the terminal to deactivate a secondary cell group, and the first signaling is used to trigger all
  • the terminal indicates to the upper layer of the terminal that the higher layer identifier does not exist or indicates that the higher layer identifier does not need to be displayed.
  • An embodiment of the present application provides a chip module, including a transceiver component and a chip, where the chip is configured to send a first signaling to a terminal through the transceiver component, where the first signaling is used to indicate an auxiliary device of the terminal When the cell group is deactivated, the first signaling is used to trigger the terminal to indicate to a higher layer of the terminal that the higher layer identifier does not exist or that the higher layer identifier does not need to be displayed.
  • the above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination.
  • the above-described embodiments may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server or data center Transmission by wire or wireless to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that contains one or more sets of available media.
  • the usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media.
  • the semiconductor medium may be a solid state drive.
  • Embodiments of the present application further provide a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program causes the computer to execute part or all of the steps of any method described in the above method embodiments , the above computer includes electronic equipment.
  • Embodiments of the present application further provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute any one of the method embodiments described above. some or all of the steps of the method.
  • the computer program product may be a software installation package, and the computer includes an electronic device.
  • the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.
  • the disclosed method, apparatus and system may be implemented in other manners.
  • the device embodiments described above are only illustrative; for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation; for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included individually, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units.
  • the above-mentioned integrated units implemented in the form of software functional units can be stored in a computer-readable storage medium.
  • the above-mentioned software functional unit is stored in a storage medium, and includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute some steps of the methods described in the various embodiments of the present invention.
  • the aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM for short), Random Access Memory (RAM for short), magnetic disk or CD, etc. that can store program codes medium.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé de transmission de SL-SSB et un appareil associé, le procédé comprenant : un premier équipement d'utilisateur envoie une première SL-SSB dans un premier intervalle de temps d'un premier cycle de transmission, le premier intervalle de temps étant un intervalle de temps quelconque d'un premier ensemble d'intervalles de temps, le premier ensemble d'intervalles de temps comprenant une pluralité d'intervalles de temps du premier cycle de transmission, et la pluralité d'intervalles de temps étant utilisée pour envoyer des SL-SSB qui ont une relation de quasi co-localisation (QCL). Dans les modes de réalisation de la présente invention, une pluralité de positions d'intervalle de temps utilisées pour transmettre des SL-SSB qui ont la même relation QCL est fournie dans un cycle de transmission, de sorte que lorsque le LBT échoue à une certaine position d'intervalle de temps de SL-SSB, l'équipement utilisateur peut envoyer sans difficulté la SL-SSB à une autre position d'intervalle de temps ayant la même relation QCL.
PCT/CN2022/087247 2021-04-25 2022-04-16 Procédé de transmission de sl-ssb et appareil associé WO2022228160A1 (fr)

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Citations (5)

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CN111010742A (zh) * 2019-12-09 2020-04-14 Oppo广东移动通信有限公司 用于确定随机接入资源的方法和终端设备
CN111277378A (zh) * 2018-12-29 2020-06-12 维沃移动通信有限公司 信息的接收方法、发送方法、终端及网络侧设备
WO2020209657A1 (fr) * 2019-04-12 2020-10-15 한양대학교 산학협력단 Procédé permettant d'effectuer une communication de liaison latérale, et dispositif associé
US20210076341A1 (en) * 2019-09-10 2021-03-11 Samsung Electronics Co., Ltd. Method and apparatus for s-ssb transmission
CN112566234A (zh) * 2020-11-24 2021-03-26 中兴通讯股份有限公司 同步广播信号配置方法、装置、节点和存储介质

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CN111277378A (zh) * 2018-12-29 2020-06-12 维沃移动通信有限公司 信息的接收方法、发送方法、终端及网络侧设备
WO2020209657A1 (fr) * 2019-04-12 2020-10-15 한양대학교 산학협력단 Procédé permettant d'effectuer une communication de liaison latérale, et dispositif associé
US20210076341A1 (en) * 2019-09-10 2021-03-11 Samsung Electronics Co., Ltd. Method and apparatus for s-ssb transmission
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