WO2021016940A1 - Procédé et appareil de configuration de signal de synchronisation destinés à une communication v2x, et support de stockage - Google Patents

Procédé et appareil de configuration de signal de synchronisation destinés à une communication v2x, et support de stockage Download PDF

Info

Publication number
WO2021016940A1
WO2021016940A1 PCT/CN2019/098695 CN2019098695W WO2021016940A1 WO 2021016940 A1 WO2021016940 A1 WO 2021016940A1 CN 2019098695 W CN2019098695 W CN 2019098695W WO 2021016940 A1 WO2021016940 A1 WO 2021016940A1
Authority
WO
WIPO (PCT)
Prior art keywords
ssbs
terminal
ssb
transmission
configuration information
Prior art date
Application number
PCT/CN2019/098695
Other languages
English (en)
Chinese (zh)
Inventor
刘洋
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2019/098695 priority Critical patent/WO2021016940A1/fr
Priority to CN201980001591.5A priority patent/CN110583032B/zh
Publication of WO2021016940A1 publication Critical patent/WO2021016940A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements

Definitions

  • the embodiments of the present disclosure relate to the field of communication technologies, and in particular, to a synchronization signal configuration method, device, and storage medium for V2X (Vehicle to Everything, Internet of Vehicles) communication.
  • V2X Vehicle to Everything, Internet of Vehicles
  • V2X vehicle-mounted equipment and other equipment (such as other vehicle-mounted equipment, roadside infrastructure, etc.) can communicate directly through sidelinks.
  • Direct communication has the characteristics of short delay and low overhead.
  • the design of the synchronization signal can follow the design of the NR system, but because the NR system has the central node gNB (next generation NodeB), and the V2X direct connection communication scenario There is no central node, so when designing the synchronization signal in the V2X direct communication scenario, although you can refer to the synchronization signal design in the NR system, you need to make some adaptive changes.
  • gNB next generation NodeB
  • the embodiments of the present disclosure provide a synchronization signal configuration method, device and storage medium for V2X communication.
  • the technical solution is as follows:
  • a synchronization signal configuration method for V2X communication including:
  • the base station sends S-SSB (Sidelink Synchronization Signal Block) configuration information, and the S-SSB configuration information is used to configure the number of S-SSBs to the terminal of V2X communication; where the number of S-SSBs is Refers to the number of S-SSBs sent in a cycle.
  • S-SSB Servicelink Synchronization Signal Block
  • the base station supports providing different S-SSB configuration information in different scenarios.
  • the method further includes: the base station determines the maximum number of S-SSBs according to the working frequency band and beam support conditions of the terminals supporting V2X communication in the cell.
  • the maximum value of the number of SSBs is an integer multiple of the number of S-SSBs configured by the S-SSB configuration information.
  • a synchronization signal configuration method for V2X communication including:
  • the terminal receives S-SSB configuration information, where the S-SSB configuration information is used to configure the number of S-SSBs to the terminal for V2X communication;
  • the number of S-SSBs refers to the number of S-SSBs sent in one cycle.
  • the method further includes: the terminal determines the number n of first transmission beams according to the S-SSB configuration information, and the first transmission beam refers to a beam used to transmit the S-SSB; wherein, The number n of the first transmission beams is the same as the number of S-SSBs configured by the S-SSB configuration information, and the n is a positive integer.
  • the method further includes: if the terminal has a transmission requirement for side link data, determining the direction of the first transmission beam by the terminal according to the direction of the second transmission beam, and the second transmission beam
  • the beam refers to a beam used to transmit side link data; wherein, the coverage area of the first transmission beam overlaps the coverage area of the second transmission beam.
  • the first transmission beam and the second transmission beam have a one-to-one correspondence, and the corresponding first transmission beam The directions of the transmitting beam and the second transmitting beam are the same.
  • the number of the first transmission beams is less than the number of the second transmission beams, at least one of the first transmission beams exists, and the coverage area of the first transmission beam overlaps with the coverage areas of the multiple second transmission beams .
  • the method further includes: if the terminal does not have a transmission requirement of side link data, the terminal uses a beam scanning manner to transmit the S-SSB on the n first transmission beams.
  • the method further includes: if the terminal receives the synchronization signal of the S-SSB in multiple beam directions, the terminal determines the beam direction with the best received signal quality of the synchronization signal; the The terminal receives side link data sent by other terminals in the beam direction with the best received signal quality.
  • the method further includes: the terminal adjusts the directions of the multiple first transmission beams used to transmit the S-SSB to the same target direction; wherein, the target direction refers to the direction of the terminal toward the target terminal The beam direction used by the link data on the sending side.
  • a synchronization signal configuration device for V2X communication which is applied in a base station, and the device includes:
  • the information sending module is configured to send S-SSB configuration information, where the S-SSB configuration information is used to configure the number of S-SSBs to the terminal of V2X communication; wherein, the number of S-SSBs refers to the number of S-SSBs sent in one cycle The number of S-SSBs.
  • the base station supports providing different S-SSB configuration information in different scenarios.
  • the device further includes: a maximum value determining module configured to determine the maximum value of the number of S-SSBs according to the working frequency band and beam support conditions of the terminals supporting V2X communication in the cell.
  • a maximum value determining module configured to determine the maximum value of the number of S-SSBs according to the working frequency band and beam support conditions of the terminals supporting V2X communication in the cell.
  • the maximum value of the number of SSBs is an integer multiple of the number of S-SSBs configured by the S-SSB configuration information.
  • a synchronization signal configuration device for V2X communication which is applied to a terminal, and the device includes:
  • the information receiving module is configured to receive S-SSB configuration information, where the S-SSB configuration information is used to configure the number of S-SSBs to the terminal of V2X communication; wherein, the number of S-SSBs refers to the number of S-SSBs sent in one cycle The number of S-SSBs.
  • the apparatus further includes: a quantity determining module configured to determine the quantity n of first transmission beams according to the S-SSB configuration information, and the first transmission beam refers to the number n for transmitting the S-SSB Beam; wherein the number n of the first transmission beam is the same as the number of the S-SSB configured by the S-SSB configuration information, and the n is a positive integer.
  • a quantity determining module configured to determine the quantity n of first transmission beams according to the S-SSB configuration information, and the first transmission beam refers to the number n for transmitting the S-SSB Beam; wherein the number n of the first transmission beam is the same as the number of the S-SSB configured by the S-SSB configuration information, and the n is a positive integer.
  • the device further includes: a direction determination module configured to determine the direction of the first transmission beam according to the direction of the second transmission beam when the terminal has a transmission requirement for side link data, so
  • the second transmission beam refers to a beam used to transmit side link data; wherein, the coverage area of the first transmission beam overlaps the coverage area of the second transmission beam.
  • the first transmission beam and the second transmission beam have a one-to-one correspondence, and the corresponding first transmission beam The directions of the transmitting beam and the second transmitting beam are the same.
  • the number of the first transmission beams is less than the number of the second transmission beams, at least one of the first transmission beams exists, and the coverage area of the first transmission beam overlaps with the coverage areas of the multiple second transmission beams .
  • the device further includes: a signal sending module configured to send the S on the n first sending beams in a beam scanning mode when the terminal does not have a sending demand for side link data. -SSB.
  • the device further includes: a direction selection module configured to determine the beam with the best received signal quality of the synchronization signal when the terminal receives the synchronization signal of the S-SSB in multiple beam directions Direction; the data receiving module is configured to receive side link data sent by other terminals in the beam direction with the best received signal quality.
  • a direction selection module configured to determine the beam with the best received signal quality of the synchronization signal when the terminal receives the synchronization signal of the S-SSB in multiple beam directions Direction
  • the data receiving module is configured to receive side link data sent by other terminals in the beam direction with the best received signal quality.
  • the device further includes: a direction adjustment module configured to adjust the directions of a plurality of first transmission beams to the same target direction, and the first transmission beam refers to a beam used to transmit S-SSB;
  • the target direction refers to the beam direction used by the terminal to send side link data to the target terminal.
  • a synchronization signal configuration device for V2X communication which is applied in a base station, and the device includes:
  • a memory for storing executable instructions of the processor
  • the processor is configured to:
  • the number of S-SSBs refers to the number of S-SSBs sent in one cycle.
  • a synchronization signal configuration device for V2X communication which is applied to a terminal, and the device includes:
  • a memory for storing executable instructions of the processor
  • the processor is configured to:
  • the number of S-SSBs refers to the number of S-SSBs sent in one cycle.
  • a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method described in the first aspect are implemented, Or implement the steps of the method described in the second aspect.
  • the S-SSB configuration information is sent to the terminal through the base station.
  • the S-SSB configuration information is used to configure the number of S-SSBs sent in a cycle, which realizes the flexible configuration of the number of S-SSBs, compared to adopting a fixed configuration
  • the technical solutions provided by the embodiments of the present disclosure are more conducive to the improvement of V2X performance.
  • Fig. 1 is a schematic diagram of a network architecture provided by an exemplary embodiment of the present disclosure
  • Fig. 2 is a flowchart of a method for configuring synchronization signals of V2X communication according to an exemplary embodiment of the present disclosure
  • FIG. 3 is a flowchart of a synchronization signal configuration method for V2X communication according to another exemplary embodiment of the present disclosure
  • Fig. 4 is an effect diagram of a beam direction adjustment provided by an exemplary embodiment of the present disclosure
  • Fig. 5 is a schematic diagram of beam direction adjustment provided by an exemplary embodiment of the present disclosure.
  • Fig. 6 is a block diagram of a synchronization signal configuration device for V2X communication according to an exemplary embodiment of the present disclosure
  • FIG. 7 is a block diagram of a synchronization signal configuration device for V2X communication according to another exemplary embodiment of the present disclosure.
  • FIG. 8 is a block diagram of a synchronization signal configuration device for V2X communication according to another exemplary embodiment of the present disclosure.
  • FIG. 9 is a block diagram of a synchronization signal configuration device for V2X communication according to another exemplary embodiment of the present disclosure.
  • Fig. 10 is a schematic structural diagram of a base station provided by an exemplary embodiment of the present disclosure.
  • Fig. 11 is a schematic structural diagram of a terminal provided by an exemplary embodiment of the present disclosure.
  • Fig. 1 is a schematic diagram showing a network architecture according to an exemplary embodiment.
  • the network architecture may include: a core network 11, an access network 12, and a terminal 13.
  • the core network 11 includes several core network equipment.
  • the function of the core network equipment is mainly to provide user connections, manage users, and complete the bearing of services, as the bearer network to provide an interface to the external network.
  • the core network of the 5G NR system may include AMF (Access and Mobility Management Function, access and mobility management function) entities, UPF (User Plane Function, user plane function) entities, and SMF (Session Management Function, session management functions). ) Physical and other equipment.
  • the access network 12 includes a number of base stations 14.
  • the access network in the 5G NR system can be called NG-RAN (New Generation-Radio Access Network).
  • the base station 14 is a device deployed in the access network 12 to provide the terminal 13 with wireless communication functions.
  • the base station 14 may include various forms of macro base stations, micro base stations, relay stations, access points, and so on.
  • the names of devices with base station functions may be different.
  • they are called gNodeB or gNB.
  • the name "base station” may change.
  • the above-mentioned devices for providing wireless communication functions for the terminal 13 are collectively referred to as base stations.
  • the number of terminals 13 is usually multiple, and one or more terminals 13 may be distributed in a cell managed by each base station 14.
  • the terminal 13 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of User Equipment (UE), mobile stations ( Mobile Station, MS), terminal device (terminal device), etc.
  • UE User Equipment
  • MS Mobile Station
  • terminal device terminal device
  • the base station 14 and the core network equipment communicate with each other through some aerial technology, such as the NG interface in the 5G NR system.
  • the base station 14 and the terminal 13 communicate with each other through a certain aerial technology, such as a Uu interface.
  • the terminal 13 and the terminal 13 can communicate with each other through a direct communication interface (such as a PC5 interface).
  • a direct communication interface such as a PC5 interface
  • the communication link established based on the direct communication interface may be referred to as a direct link or a side link.
  • the communication based on the direct communication interface has the characteristics of short delay and low overhead, and it is suitable for communication between two terminals in close geographic locations (such as vehicle-mounted equipment and other peripheral devices in close geographic locations). Communication.
  • the "5G NR system" in the embodiments of the present disclosure may also be referred to as a 5G system or an NR system, but those skilled in the art can understand its meaning.
  • the technical solutions described in the embodiments of the present disclosure may be applicable to the 5G NR system, and may also be applicable to the subsequent evolution system of the 5G NR system.
  • the SSB in the V2X communication scenario is called S-SSB, which represents the SSB used for side link communication.
  • S-SSB configuration information is sent to the terminal through the base station, and the S-SSB configuration information is used for configuration in one cycle.
  • the number of sent S-SSBs realizes a flexible configuration of the number of S-SSBs. Compared with adopting a fixed configuration, the technical solution provided by the embodiments of the present disclosure is more conducive to the improvement of V2X performance.
  • Fig. 2 is a flow chart showing a method for configuring synchronization signals of V2X communication according to an exemplary embodiment. This method can be applied to the base station 14 of the network architecture shown in FIG. 1. The method may include the following steps:
  • step 201 the base station sends S-SSB configuration information, and the S-SSB configuration information is used to configure the number of S-SSBs to the terminal for V2X communication.
  • the base station can send S-SSB configuration information to the terminals in the serving cell, and configure the number of S-SSBs to the terminals in the cell performing V2X communication through the S-SSB configuration information.
  • the number of S-SSBs refers to the number of S-SSBs transmitted in one cycle.
  • the terminal in V2X communication can periodically send S-SSB to realize synchronization with other terminals in V2X communication.
  • the number of S-SSBs sent in each cycle and the time domain position occupied by each S-SSB may be the same.
  • the number of S-SSBs configured by the base station through the S-SSB configuration information is 4, which means that the terminal configures the terminal in the cell to send 4 S-SSBs in each cycle.
  • the S-SSB may include: sidelink PSS (sidelink Primary Synchronized Signal), sidelink SSS (sidelink Secondary Synchronized Signal) and sidelink PBCH (sidelink Physical) Broadcast Channel, side link physical broadcast channel).
  • sidelink PSS sidelink Primary Synchronized Signal
  • sidelink SSS sidelink Secondary Synchronized Signal
  • sidelink PBCH sidelink Physical
  • the base station can send S-SSB configuration information to the terminals in the serving cell by broadcasting.
  • the S-SSB configuration information can be sent as system information.
  • the terminal accesses the base station, it can receive the system information broadcast by the base station, including the S-SSB configuration information.
  • the S-SSB configuration information may also include other information related to the S-SSB configuration.
  • the S-SSB configuration information may also include at least one of the following: periodic configuration information, time domain configuration information, and so on.
  • the period configuration information is used to indicate the transmission period of the S-SSB
  • the time domain configuration information is used to indicate the time domain position of the S-SSB in the transmission period.
  • the transmission period of the S-SSB is 10 ms
  • the time domain positions of the S-SSB in each transmission period of 10 ms are 1 ms, 3 ms, 5 ms, 7 ms, and 9 ms.
  • the base station supports providing different S-SSB configuration information in different scenarios.
  • the S-SSB configuration information sent by the base station is different, that is, the number of S-SSB configured to the terminal is Different.
  • the number of S-SSBs configured to the terminal can be 4; for an application scenario where synchronization real-time requirements are low, the number of S-SSB configured to the terminal can be 2.
  • the base station can provide different S-SSB configuration information in different scenarios, so that the S-SSB configuration information is more in line with the requirements of actual scenarios, and the flexibility of configuration is further improved.
  • the base station determines the maximum number of S-SSBs according to the working frequency band and beam support conditions of the terminals supporting V2X communication in the cell.
  • the working frequency band refers to the frequency band used by the terminal during V2X communication
  • the beam support situation refers to the number of beams that the terminal can use when sending and/or receiving information.
  • their working frequency bands and beam support conditions may be the same or different, which is not limited in the embodiments of the present disclosure.
  • the base station determines that the maximum number of S-SSBs is 4, the number of S-SSBs configured by the base station to the terminals in the cell through the S-SSB configuration information cannot exceed 4.
  • the base station determines the maximum number of S-SSBs according to the working frequency band and beam support conditions of the terminals supporting V2X communication in the cell, so that the number of S-SSBs configured by the base station for the terminal is more accurate.
  • the maximum value of the number of S-SSBs is an integer multiple of the number of S-SSBs configured in the S-SSB configuration information. For example, if the maximum number of S-SSBs determined by the base station is 4, the number of S-SSBs configured by the base station to the terminal for V2X communication can be 4, 2, or 1.
  • the number of S-SSBs configured by the base station through the S-SSB configuration information is the above-mentioned maximum value.
  • the terminal can determine the number of S-SSBs to be sent in a period in accordance with its actual situation. Wherein, the number of S-SSBs to be sent in a period determined by the terminal may be the above-mentioned maximum value or less than the above-mentioned maximum value.
  • the terminal can autonomously determine the number of S-SSBs sent in a period according to the actual application requirements, and the terminal independently determines the S-SSB. -The number of SSB cannot be greater than 4. If the synchronization demand of the terminal is relatively high, it can be determined to send 4 S-SSBs in one cycle; and if the synchronization demand of the terminal is relatively low, it can send 2 S-SSBs in one cycle.
  • the maximum value of the number of S-SSBs configured by the S-SSB configuration information is an integer multiple of the number of S-SSBs independently determined by the terminal. For example, if the maximum number of S-SSBs configured in the S-SSB configuration information is 4, the terminal can autonomously determine that the number of S-SSBs sent in a period can be 4, 2, or 1.
  • the technical solution provided by the embodiments of the present disclosure is suitable for V2X communication scenarios operating in the FR2 frequency band.
  • the number of S-SSBs can be configured, that is, for the V2X communication scenario, the operating frequency is 24250MHz
  • the base station can configure the number of S-SSBs for the terminal through the method described above.
  • the technical solutions provided by the embodiments of the present disclosure are also applicable, which is not limited in the present disclosure.
  • the base station sends S-SSB configuration information to the terminal.
  • the S-SSB configuration information is used to configure the number of S-SSBs sent in one cycle, which realizes the -Flexible configuration of the number of SSBs, compared to adopting a fixed configuration, the technical solution provided by the embodiments of the present disclosure is more conducive to the improvement of V2X performance.
  • the base station can provide different S-SSB configuration information in different scenarios, so that the S-SSB configuration information is more in line with the requirements of actual scenarios, and the flexibility of configuration is further improved.
  • the base station determines the maximum number of S-SSBs according to the working frequency band and beam support of the terminals supporting V2X communication in the cell, so that the number of S-SSBs configured by the base station for the terminal is more accurate.
  • Fig. 3 is a flowchart showing a synchronization signal configuration method of V2X communication according to another exemplary embodiment. This method can be applied to the terminal 13 of the network architecture shown in FIG. 1. The method may include the following steps:
  • the terminal receives S-SSB configuration information.
  • the S-SSB configuration information is used to configure the number of S-SSBs to the terminal for V2X communication.
  • the number of S-SSBs refers to the number of S-SSBs sent in a period. number.
  • the terminal After receiving the S-SSB configuration information, the terminal determines the number of S-SSBs to be sent in a period according to the number of S-SSBs configured by the S-SSB configuration information.
  • the number of S-SSBs to be sent in a period determined by the terminal is the number of S-SSBs configured by the S-SSB configuration information. For example, if the number of S-SSBs configured in the S-SSB configuration information is 4, the terminal determines that the number of S-SSBs sent in a period is 4; for another example, the number of S-SSBs configured in the S-SSB configuration information If it is 2, the terminal determines that the number of S-SSBs sent in a cycle is 2.
  • the terminal determines the number of S-SSBs to be sent in a period according to the number of S-SSBs configured by the S-SSB configuration information and its own actual application requirements. And the number of S-SSBs determined by the terminal is not greater than the number of S-SSBs configured in the S-SSB configuration information.
  • the number of S-SSBs configured in the S-SSB configuration information is an integer multiple of the number of S-SSBs determined by the terminal. For example, the number of S-SSBs configured in the S-SSB configuration information is 4. If the terminal's synchronization requirement is relatively high, it can be determined to send 4 S-SSBs in one cycle; and if the terminal's synchronization requirement is relatively low, Then two S-SSBs can be sent in one cycle.
  • the terminal determines the number n of the first transmission beams according to the S-SSB configuration information, where n is a positive integer.
  • the first sending beam refers to a beam used to send S-SSB.
  • the number n of the first transmission beams is the same as the number of S-SSBs configured in the S-SSB configuration information. For example, if the number of S-SSBs configured in the S-SSB configuration information is 4, the terminal determines that the number of the first transmission beam is also 4. In this way, in one cycle, the terminal can use 4 first transmission beams to send 4 S-SSBs respectively, that is, each first transmission beam is used to send one S-SSB.
  • the terminal may also determine the direction of the first transmission beam according to the direction of the second transmission beam, where the second transmission beam refers to the transmission side link data The beam; wherein, the coverage of the first transmission beam overlaps with the coverage of the second transmission beam.
  • the coverage of the first transmission beam and the coverage of the second transmission beam described above overlap which may be that the coverage of the first transmission beam and the coverage of the second transmission beam completely overlap, or may be partially overlapped.
  • the embodiment does not limit this.
  • the receiving terminal of the S-SSB can achieve better synchronization effect.
  • terminal B when the first transmission beam of terminal A can adapt to the second transmission beam, terminal B can achieve a better synchronization effect; when the first transmission beam of terminal B can adapt to the second transmission beam, Terminal A can achieve a better synchronization effect.
  • the beam management process of the terminal can be simplified.
  • the beam represents a certain spatial characteristic. If the direction of the first transmission beam is consistent with the direction of the second transmission beam, the direction of the first transmission beam can be used to provide side link data demodulation. A certain spatial reference.
  • the coverage of the first transmission beam overlaps the coverage of the second transmission beam, which means that the direction of the first transmission beam is consistent with the direction of the second transmission beam.
  • the terminal has a side link data transmission requirement, and the direction of the second transmission beam of the terminal is 20 degrees west of north to 40 degrees west of north, then the terminal determines the direction of the first transmission beam It is also 20 degrees west of north to 40 degrees west of north.
  • the first transmission beam and the second transmission beam correspond one-to-one, and the directions of the corresponding first transmission beam and the second transmission beam the same.
  • the one-to-one correspondence between the first transmission beam and the second transmission beam means that one first transmission beam corresponds to one second transmission beam.
  • the number of the first transmission beam is 2, marked as the first transmission beam 1 and the first transmission beam 2, and the number of the second transmission beam is also 2, marked as the second transmission beam 1 and the second transmission beam 2, then
  • the first transmission beam 1 may correspond to the second transmission beam 1
  • the first transmission beam 2 may correspond to the second transmission beam 2
  • the direction of the first transmission beam 1 is consistent with the direction of the second transmission beam 1
  • the first transmission beam The direction of 2 is consistent with the direction of the second transmission beam 2
  • the first transmission beam 1 may also correspond to the second transmission beam 2
  • the first transmission beam 2 may also correspond to the second transmission beam 1
  • the first transmission beam 1 is consistent with the direction of the second transmission beam 2
  • the direction of the first transmission beam 2 is consistent with the direction of the second transmission beam 1.
  • the number of first transmission beams is less than the number of second transmission beams, there is at least one first transmission beam whose coverage overlaps with the coverage of multiple second transmission beams, that is, there is at least one first transmission beam.
  • the direction of a transmission beam includes the directions of a plurality of second transmission beams.
  • the coverage of the first transmit beam 1 may include the coverage of the second transmission beam 1 and the second transmission beam 2, that is, if the direction of the second transmission beam 1 is 60 degrees south east to 80 degrees south east, the direction of the second transmission beam 2 is east From 10 degrees south to 30 degrees south east, the direction of the first transmission beam 1 is 10 degrees south east to 80 degrees south east.
  • the terminal can use the beam scanning mode to send the S-SSB on the n first transmission beams. Because beam scanning can improve the coverage, when the terminal has no side link data transmission requirements, using beam scanning to send S-SSB on the first transmission beam can ensure that the synchronization signal of each terminal in V2X communication is maintained Consistent.
  • the direction of beam scanning can be preset, which is not limited in the embodiment of the present disclosure.
  • the terminal determines the beam direction with the best received signal quality of the synchronization signal; the terminal has the best received signal quality In the beam direction, receive side link data sent by other terminals.
  • the terminal can measure the received signal strength to determine the received signal quality of each beam. For example, the terminal receives S-SSB synchronization signals in two beam directions, which are recorded as beam direction 1, beam direction 2. Assuming that the received signal quality of beam direction 2 is better, the terminal will then be in beam direction 2. Receive side link data sent by other terminals.
  • the direction of the first transmission beam can be determined according to the direction of the second transmission beam, such as ensuring the coverage of the first transmission beam
  • the coverage of the second transmission beam overlaps, such as ensuring that the direction of the first transmission beam is the same as the direction of the second transmission beam; then, for the receiving terminal, in the beam direction with the best received signal quality of the S-SSB, Receiving side link data sent by other terminals can improve the success rate of side link data reception.
  • the transmitting terminal sends S-SSB and side link data in the same beam direction, the beam direction where the received signal quality of S-SSB is the best, the received signal quality of the side link data will not be bad, thereby improving the side link The success rate of data reception.
  • the terminal may also adjust the directions of the multiple first transmission beams to the same target direction, and the target direction refers to the beam direction used by the terminal to send side link data to the target terminal.
  • the terminal has two first transmission beams, denoted as first transmission beam 1 and first transmission beam 2.
  • first transmission beam 1 the beam direction used by the terminal to send side link data to the target terminal is 10 degrees west to south
  • the terminal will also adjust the direction of the first transmission beam 1 and the direction of the first transmission beam 2 to 10 degrees west of south to 30 degrees west of south.
  • the base station sends S-SSB configuration information to the terminal.
  • the S-SSB configuration information is used to configure the number of S-SSBs sent in one cycle, which realizes the -Flexible configuration of the number of SSBs, compared to adopting a fixed configuration, the technical solution provided by the embodiments of the present disclosure is more conducive to the improvement of V2X performance.
  • the transmitting terminal adapts the first transmitting beam to the second transmitting beam, that is, the coverage of the first transmitting beam overlaps the coverage of the second transmitting beam, so that the receiving terminal of the S-SSB can achieve a better synchronization effect.
  • Fig. 6 is a block diagram showing a device for configuring a synchronization signal of V2X communication according to an exemplary embodiment.
  • the device has the function of realizing the above-mentioned method example on the base station side, and the function can be realized by hardware, or by hardware executing corresponding software.
  • the device can be a base station or set in a base station.
  • the device 60 may include: an information sending module 61.
  • the information sending module 61 is configured to send S-SSB configuration information, where the S-SSB configuration information is used to configure the number of S-SSBs to the terminal of V2X communication; wherein, the number of S-SSBs means sending in one cycle The number of S-SSBs.
  • the base station sends S-SSB configuration information to the terminal.
  • the S-SSB configuration information is used to configure the number of S-SSBs sent in one cycle, which realizes the -Flexible configuration of the number of SSBs, compared to adopting a fixed configuration, the technical solution provided by the embodiments of the present disclosure is more conducive to the improvement of V2X performance.
  • the base station supports providing different S-SSB configuration information in different scenarios.
  • the device 60 further includes: a maximum value determining module 62, configured to determine the maximum number of S-SSBs according to the working frequency band and beam support conditions of terminals supporting V2X communication in the cell value.
  • a maximum value determining module 62 configured to determine the maximum number of S-SSBs according to the working frequency band and beam support conditions of terminals supporting V2X communication in the cell value.
  • the maximum value of the number of SSBs is an integer multiple of the number of S-SSBs configured by the S-SSB configuration information.
  • Fig. 8 is a block diagram showing a device for configuring a synchronization signal of V2X communication according to another exemplary embodiment.
  • the device has the function of realizing the above-mentioned method example on the terminal side, and the function can be realized by hardware, or by hardware executing corresponding software.
  • the device can be a terminal or set in the terminal.
  • the device 80 may include: an information receiving module 81.
  • the information receiving module 81 is configured to receive S-SSB configuration information, and the S-SSB configuration information is used to configure the number of S-SSBs to the terminal of V2X communication; wherein, the number of S-SSBs refers to sending in one cycle The number of S-SSBs.
  • the base station sends S-SSB configuration information to the terminal.
  • the S-SSB configuration information is used to configure the number of S-SSBs sent in one cycle, which realizes the -Flexible configuration of the number of SSBs, compared to adopting a fixed configuration, the technical solution provided by the embodiments of the present disclosure is more conducive to the improvement of V2X performance.
  • the apparatus 80 further includes: a quantity determining module 82 configured to determine the quantity n of first transmission beams according to the S-SSB configuration information, where the first transmission beam refers to A beam used to transmit an S-SSB; wherein the number n of the first transmission beam is the same as the number of the S-SSB configured by the S-SSB configuration information, and the n is a positive integer.
  • a quantity determining module 82 configured to determine the quantity n of first transmission beams according to the S-SSB configuration information, where the first transmission beam refers to A beam used to transmit an S-SSB; wherein the number n of the first transmission beam is the same as the number of the S-SSB configured by the S-SSB configuration information, and the n is a positive integer.
  • the apparatus 80 further includes a direction determining module 83, configured to determine the first transmission beam according to the direction of the second transmission beam when the terminal has a transmission requirement for side link data.
  • a direction of a sending beam, the second sending beam refers to a beam used for sending side link data; wherein, the coverage of the first sending beam overlaps the coverage of the second sending beam.
  • the first transmission beam and the second transmission beam have a one-to-one correspondence, and the corresponding first transmission beam The directions of the transmitting beam and the second transmitting beam are the same.
  • the number of the first transmission beams is less than the number of the second transmission beams, at least one of the first transmission beams exists, and the coverage area of the first transmission beam overlaps with the coverage areas of the multiple second transmission beams .
  • the belonging device further includes: a signal sending module 84 configured to use a beam scanning method to scan the n first sending beams when the terminal does not have a sending demand for side link data The S-SSB is sent on.
  • a signal sending module 84 configured to use a beam scanning method to scan the n first sending beams when the terminal does not have a sending demand for side link data The S-SSB is sent on.
  • the device 80 further includes: a direction selection module 85 configured to determine that the received signal quality of the synchronization signal is the best when the terminal receives the synchronization signal of the S-SSB in multiple beam directions
  • the data receiving module 86 is configured to receive side link data sent by other terminals in the beam direction with the best received signal quality.
  • the apparatus 80 further includes: a direction adjustment module 87 configured to adjust the directions of the multiple first transmission beams to the same target direction; wherein, the target direction refers to the terminal sending to the target terminal The beam direction used by the side link data.
  • a direction adjustment module 87 configured to adjust the directions of the multiple first transmission beams to the same target direction; wherein, the target direction refers to the terminal sending to the target terminal The beam direction used by the side link data.
  • An exemplary embodiment of the present disclosure also provides a synchronization signal configuration device for V2X communication, which can be applied to the base station described above, and can implement the synchronization signal configuration method for V2X communication on the base station side provided in the present disclosure.
  • the device may include a processor, and a memory for storing executable instructions of the processor.
  • the processor is configured as:
  • the number of S-SSBs refers to the number of S-SSBs sent in one cycle.
  • the base station supports providing different S-SSB configuration information in different scenarios.
  • the processor is further configured to:
  • the maximum number of S-SSBs is determined according to the working frequency band and beam support conditions of the terminals supporting V2X communication in the cell.
  • the maximum value of the number of SSBs is an integer multiple of the number of S-SSBs configured by the S-SSB configuration information.
  • An exemplary embodiment of the present disclosure also provides a synchronization signal configuration device for V2X communication, which can be applied to the terminal introduced above, and can implement the synchronization signal configuration method for V2X communication on the terminal side provided in the present disclosure.
  • the device may include a processor, and a memory for storing executable instructions of the processor.
  • the processor is configured as:
  • the number of S-SSBs refers to the number of S-SSBs sent in one cycle.
  • the processor is further configured to:
  • the number n of the first transmission beams is the same as the number of S-SSBs configured by the S-SSB configuration information, and the n is a positive integer.
  • the processor is further configured to:
  • the terminal determines the direction of the first transmission beam according to the direction of the second transmission beam, and the second transmission beam refers to the transmission side link data Beam
  • the coverage area of the first transmission beam overlaps the coverage area of the second transmission beam.
  • the first transmission beam and the second transmission beam have a one-to-one correspondence, and the corresponding first transmission beam The directions of the transmitting beam and the second transmitting beam are the same.
  • the number of the first transmission beams is less than the number of the second transmission beams, there is at least one first transmission beam whose coverage area overlaps with coverage areas of multiple second transmission beams .
  • the processor is further configured to:
  • the terminal If the terminal does not have a transmission requirement of side link data, the terminal transmits the S-SSB on the n first transmission beams in a beam scanning manner.
  • the processor is further configured to:
  • the terminal determines the beam direction with the best received signal quality of the synchronization signal
  • the terminal receives the side link data sent by other terminals in the beam direction with the best received signal quality.
  • the processor is further configured to:
  • the terminal adjusts the directions of the multiple first transmission beams used to transmit the S-SSB to the same target direction;
  • the target direction refers to the beam direction used by the terminal to send side link data to the target terminal.
  • the terminal and the base station include hardware structures and/or software modules corresponding to each function.
  • the embodiments of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Those skilled in the art can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the technical solutions of the embodiments of the present disclosure.
  • Fig. 10 is a schematic structural diagram showing a base station according to an exemplary embodiment.
  • the base station 1000 includes a transmitter/receiver 1001 and a processor 1002.
  • the processor 1002 may also be a controller, which is represented as "controller/processor 1002" in FIG. 10.
  • the transmitter/receiver 1001 is used to support the sending and receiving of information between the base station and the terminal in the foregoing embodiment, and to support communication between the base station and other network entities.
  • the processor 1002 performs various functions for communicating with the terminal.
  • the uplink signal from the terminal is received via the antenna, demodulated by the receiver 1001 (for example, the high-frequency signal is demodulated into a baseband signal), and further processed by the processor 1002 to restore the terminal Send to business data and signaling information.
  • service data and signaling messages are processed by the processor 1002, and modulated by the transmitter 1001 (for example, the baseband signal is modulated into a high-frequency signal) to generate a downlink signal, which is transmitted to the terminal via the antenna .
  • the processor 1002 is further configured to execute each step on the base station side in the foregoing method embodiment, and/or other steps of the technical solution described in the embodiment of the present disclosure.
  • the base station 1000 may further include a memory 1003, and the memory 1003 is used to store program codes and data of the base station 1000.
  • the base station may also include a communication unit 1004.
  • the communication unit 1004 is used to support the base station to communicate with other network entities (for example, network equipment in the core network, etc.).
  • the communication unit 1004 may be an NG-U interface to support communication between the base station and a UPF (User Plane Function) entity; or, the communication unit 1004 may also be an NG-C
  • the interface is used to support access to AMF (Access and Mobility Management Function, access and mobility management function) entities for communication.
  • AMF Access and Mobility Management Function, access and mobility management function
  • FIG. 10 only shows a simplified design of the base station 1000.
  • the base station 1000 may include any number of transmitters, receivers, processors, controllers, memories, communication units, etc., and all base stations that can implement the embodiments of the present disclosure are within the protection scope of the embodiments of the present disclosure.
  • Fig. 11 is a schematic structural diagram of a terminal according to an exemplary embodiment.
  • the terminal 1100 includes a transmitter 1101, a receiver 1102, and a processor 1103.
  • the processor 1103 may also be a controller, which is represented as "controller/processor 1103" in FIG. 11.
  • the terminal 1100 may further include a modem processor 1105, where the modem processor 1105 may include an encoder 1106, a modulator 1107, a decoder 1108, and a demodulator 1109.
  • the transmitter 1101 adjusts (eg, analog conversion, filtering, amplification, and upconversion, etc.) the output samples and generates an uplink signal, which is transmitted to the base station via an antenna.
  • the antenna receives the downlink signal transmitted by the base station.
  • the receiver 1102 adjusts (e.g., filters, amplifies, downconverts, and digitizes, etc.) the signal received from the antenna and provides input samples.
  • the encoder 1106 receives service data and signaling messages to be sent on the uplink, and processes the service data and signaling messages (for example, formatting, encoding, and interleaving).
  • the modulator 1107 further processes (e.g., symbol mapping and modulation) the encoded service data and signaling messages and provides output samples.
  • the demodulator 1109 processes (e.g., demodulates) the input samples and provides symbol estimates.
  • the decoder 1108 processes (e.g., deinterleaves and decodes) the symbol estimation and provides decoded data and signaling messages sent to the terminal 1100.
  • the encoder 1106, the modulator 1107, the demodulator 1109, and the decoder 1108 can be implemented by a synthesized modem processor 1105. These units are processed according to the radio access technology adopted by the radio access network (for example, 5G NR and access technologies of other evolved systems). It should be noted that when the terminal 1100 does not include the modem processor 1105, the foregoing functions of the modem processor 1105 may also be performed by the processor 1103.
  • the processor 1103 controls and manages the actions of the terminal 1100, and is configured to execute the processing procedure performed by the terminal 1100 in the foregoing embodiment of the present disclosure.
  • the processor 1103 is further configured to execute various steps on the terminal side in the foregoing method embodiments, and/or other steps of the technical solutions described in the embodiments of the present disclosure.
  • the terminal 1100 may further include a memory 1104, and the memory 1104 is configured to store program codes and data for the terminal 1100.
  • FIG. 11 only shows a simplified design of the terminal 1100.
  • the terminal 1100 may include any number of transmitters, receivers, processors, modem processors, memories, etc., and all terminals that can implement the embodiments of the present disclosure are within the protection scope of the embodiments of the present disclosure.
  • the embodiment of the present disclosure also provides a non-transitory computer-readable storage medium on which a computer program is stored.
  • the computer program is executed by the processor of the base station, the steps of the synchronization signal configuration method of the V2X communication on the base station side are realized .
  • the embodiment of the present disclosure also provides a non-transitory computer-readable storage medium on which a computer program is stored.
  • the computer program is executed by the processor of the terminal, the steps of the synchronization signal configuration method of the V2X communication on the terminal side are realized .

Landscapes

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

Abstract

La présente divulgation concerne un procédé et un appareil de configuration de signal de synchronisation destinés à une communication V2X, et un support de stockage, appartenant au domaine technique des communications. Le procédé comprend les étapes suivantes : une station de base envoie des informations de configuration de bloc de signal de synchronisation de liaison latérale (S-SSB), les informations de configuration de S-SSB étant utilisées pour configurer le nombre de S-SSB destiné à un terminal pour une communication V2X ; et le nombre de S-SSB se réfère au nombre de S-SSB envoyés dans une période. Selon la présente divulgation, les informations de configuration de S-SSB sont envoyées au terminal par la station de base, et les informations de configuration de S-SSB sont utilisées pour configurer le nombre de S-SSB envoyés dans une période, ce qui permet de réaliser une configuration flexible du nombre de S-SSB. Par comparaison avec un procédé utilisant une configuration fixe, la solution technique fournie dans les modes de réalisation de la présente divulgation est plus avantageuse pour améliorer les performances V2X.
PCT/CN2019/098695 2019-07-31 2019-07-31 Procédé et appareil de configuration de signal de synchronisation destinés à une communication v2x, et support de stockage WO2021016940A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2019/098695 WO2021016940A1 (fr) 2019-07-31 2019-07-31 Procédé et appareil de configuration de signal de synchronisation destinés à une communication v2x, et support de stockage
CN201980001591.5A CN110583032B (zh) 2019-07-31 2019-07-31 V2x通信的同步信号配置方法、装置及存储介质

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/098695 WO2021016940A1 (fr) 2019-07-31 2019-07-31 Procédé et appareil de configuration de signal de synchronisation destinés à une communication v2x, et support de stockage

Publications (1)

Publication Number Publication Date
WO2021016940A1 true WO2021016940A1 (fr) 2021-02-04

Family

ID=68815602

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/098695 WO2021016940A1 (fr) 2019-07-31 2019-07-31 Procédé et appareil de configuration de signal de synchronisation destinés à une communication v2x, et support de stockage

Country Status (2)

Country Link
CN (1) CN110583032B (fr)
WO (1) WO2021016940A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116260489A (zh) * 2020-04-29 2023-06-13 华为技术有限公司 一种波束发射方法及装置
CN111726773B (zh) * 2020-05-21 2023-11-21 高新兴物联科技股份有限公司 车辆通信方法、车载装置及计算机可读存储介质
CN116076100B (zh) * 2020-07-14 2024-08-02 高通股份有限公司 共享频谱中的侧链路同步信号块(s-ssb)传输
CN113711674A (zh) * 2021-07-23 2021-11-26 北京小米移动软件有限公司 一种信息配置方法、信息配置装置及存储介质
CN118509971A (zh) * 2023-02-16 2024-08-16 索尼集团公司 用户设备、电子设备、无线通信方法和存储介质

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109041593A (zh) * 2018-07-11 2018-12-18 北京小米移动软件有限公司 随机接入配置方法及装置、随机接入方法及装置和基站
CN109076478A (zh) * 2018-08-10 2018-12-21 北京小米移动软件有限公司 发送、接收参考信号的方法、装置、车载设备及终端
CN109155728A (zh) * 2018-08-10 2019-01-04 北京小米移动软件有限公司 发送、接收参考信号的方法、装置、车载设备及终端
US20190021062A1 (en) * 2017-07-14 2019-01-17 Qualcomm Incorporated Reference signal design
CN109451867A (zh) * 2018-02-12 2019-03-08 北京小米移动软件有限公司 随机接入时机的配置方法及装置、随机接入方法及装置
CN109565648A (zh) * 2018-11-02 2019-04-02 北京小米移动软件有限公司 同步信号发送方法及装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10097321B2 (en) * 2014-05-08 2018-10-09 Qualcomm Incorporated Cooperative techniques between lower-frequency carriers and millimeter-wave channels for discovery and synchronization and beamforming
CN106559122A (zh) * 2015-09-28 2017-04-05 中兴通讯股份有限公司 一种采用波束赋形的数据通信方法和装置
CN108234005A (zh) * 2016-12-21 2018-06-29 北京信威通信技术股份有限公司 一种波束训练的方法及装置
US11071073B2 (en) * 2017-04-14 2021-07-20 Qualcomm Incorporated Radio synchronization configuration in different operation modes
CN109699067B (zh) * 2017-10-20 2020-10-27 维沃移动通信有限公司 同步信号块的处理方法、同步信号块的指示方法及装置
JP7137705B2 (ja) * 2018-11-15 2022-09-14 ペキン シャオミ モバイル ソフトウェア カンパニー， リミテッド 同期信号ブロックの構成情報のブロードキャスト、受信方法及び装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190021062A1 (en) * 2017-07-14 2019-01-17 Qualcomm Incorporated Reference signal design
CN109451867A (zh) * 2018-02-12 2019-03-08 北京小米移动软件有限公司 随机接入时机的配置方法及装置、随机接入方法及装置
CN109041593A (zh) * 2018-07-11 2018-12-18 北京小米移动软件有限公司 随机接入配置方法及装置、随机接入方法及装置和基站
CN109076478A (zh) * 2018-08-10 2018-12-21 北京小米移动软件有限公司 发送、接收参考信号的方法、装置、车载设备及终端
CN109155728A (zh) * 2018-08-10 2019-01-04 北京小米移动软件有限公司 发送、接收参考信号的方法、装置、车载设备及终端
CN109565648A (zh) * 2018-11-02 2019-04-02 北京小米移动软件有限公司 同步信号发送方法及装置

Also Published As

Publication number Publication date
CN110583032B (zh) 2023-01-24
CN110583032A (zh) 2019-12-17

Similar Documents

Publication Publication Date Title
CN109845371B (zh) 下行数据接收方法、发送方法、装置和存储介质
WO2021016940A1 (fr) Procédé et appareil de configuration de signal de synchronisation destinés à une communication v2x, et support de stockage
WO2020107346A1 (fr) Procédé et appareil de rétroaction de mesure de csi, et support de stockage
CN106797611B (zh) 信息搜索方法、信息发送方法、装置及系统
US11991725B2 (en) Downlink data transmission method and device, and storage medium
WO2020232566A1 (fr) Procédé et dispositif de changement de bwp, et support de stockage
EP3965488A1 (fr) Procédé et appareil de transmission de données de liaison montante, et support de stockage
CN109891993B (zh) 下行数据接收方法、发送方法、装置和储存介质
CN109952806B (zh) Sr配置的确定方法、装置及存储介质
JP2016500995A (ja) ＣｏＭＰ送信のための方法
EP4072202A1 (fr) Procédé et appareil pour transmettre un bloc d'informations de système, et support d'informations
CN111132324B (zh) 一种旁链路资源的配置方法及装置
JP2018057050A (ja) ユーザ装置及び信号受信方法
WO2020093326A1 (fr) Procédé d'envoi d'informations et procédé de réception, appareil d'envoi d'informations et appareil de réception, et support de stockage
CN110677912A (zh) 信息发送方法及装置、信息接收方法及装置
WO2020093324A1 (fr) Procédé d'envoi d'informations de commande, procédé et appareil de réception, et support de stockage
WO2022151391A1 (fr) Procédé et appareil d'ajustement de fréquence d'envoi
CN115883305A (zh) 时频同步方法、装置以及存储介质
WO2021109147A1 (fr) Procédé d'ajustement de fréquences et appareil de communication
WO2019109484A1 (fr) La présente invention concerne un procédé et un dispositif de communication
WO2019109483A1 (fr) Procédé et dispositif de communication
CN118555656A (zh) 通信方法及装置、存储介质、中继设备、网络设备
CN115643588A (zh) 一种通信方法及装置
CN117639880A (zh) 一种通信方法及通信装置
WO2019029402A1 (fr) Procédé et appareil d'émission de signal

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19939162

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19939162

Country of ref document: EP

Kind code of ref document: A1