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WO2021148046A1 - Procédé de sélection de ressources et appareil de communication de liaison latérale - Google Patents

Procédé de sélection de ressources et appareil de communication de liaison latérale Download PDF

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Publication number
WO2021148046A1
WO2021148046A1 PCT/CN2021/075581 CN2021075581W WO2021148046A1 WO 2021148046 A1 WO2021148046 A1 WO 2021148046A1 CN 2021075581 W CN2021075581 W CN 2021075581W WO 2021148046 A1 WO2021148046 A1 WO 2021148046A1
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WIPO (PCT)
Prior art keywords
terminal device
resource
indication information
identifier
resource set
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PCT/CN2021/075581
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English (en)
Chinese (zh)
Inventor
曲鑫
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Beijing Ziguang Zhanrui Communication Technology Co Ltd
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Beijing Ziguang Zhanrui Communication Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • 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
    • 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]
    • H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a method and device for selecting resources for auxiliary link communication.
  • Vehicle-to-X (V2X) communication is a key technical direction of the 16th (Release 16, R16) version of 3GPP.
  • NR V2X as an enhancement of Long Term Evolution (LTE) V2X, enables the Internet of Vehicles Key technical means.
  • V2X devices perform auxiliary link communication through a sidelink.
  • the first method is scheduled resource allocation.
  • the network equipment uses dynamic signaling to schedule resources for auxiliary link communication; This method is based on the perception of resource selection, which does not require the base station to dynamically schedule resources.
  • a simplified form of the perception of resource selection is the random selection of auxiliary link resources.
  • network equipment configuration or pre-configuration Configure the resource pool for auxiliary link communication, and the V2X device at the sending end randomly selects resources for auxiliary link communication from the resource pool.
  • the V2X device performs random resource selection in the network device configuration or pre-configured resource pool.
  • This random selection method cannot perform the selected resource range according to the resource occupation of the area where the V2X device is located. Flexible adjustment.
  • the resources in the network device configuration or the pre-configured resource pool are relatively small, the communication reliability of the auxiliary link between the V2X devices is poor.
  • the embodiments of the present application provide a method and device for selecting resources for auxiliary link communication.
  • a first terminal device determines at least one resource set, and sends indication information to a second terminal device to indicate the at least one resource set, so that the second terminal
  • the device selects the resources used for the auxiliary link communication. Since the resources included in the resource set are available resources determined by the first terminal device through sensing or CBR measurement, the reliability of the auxiliary link communication can be improved.
  • an embodiment of the present application provides a resource selection method for auxiliary link communication, including:
  • the first terminal device determines at least one resource set, and the resources in the at least one resource set are available resources determined by the first terminal device;
  • the first terminal device sends indication information to the second terminal device through the secondary link, where the indication information is used to indicate the at least one resource set, and the indication information is carried on the secondary link physical layer data channel PSSCH.
  • the first terminal device sending instruction information to the second terminal device through the auxiliary link includes:
  • the first terminal device broadcasts the indication information to the second terminal device through the auxiliary link.
  • the above method also includes:
  • the first terminal device broadcasts a first identifier to the second terminal device through the secondary link, the first identifier is carried on the secondary link control information SCI, and the first identifier is used to communicate to the second terminal
  • the device indicates that the indication information is carried on the PSSCH.
  • the terminal device sending the indication information to the second terminal device through the auxiliary link includes:
  • the first terminal device multicasts the indication information to the second terminal device through the auxiliary link.
  • the above method also includes:
  • the first terminal device multicasts a second identifier to each second terminal device in the multicast group through the secondary link, the second identifier is carried on the secondary link control information SCI, and the second identifier is used to indicate For the multicast group, the second identifier is also used to indicate to the multicast group that the indication information is carried on the PSSCH.
  • the indication information is used to indicate time domain information and frequency domain information of each resource set in the at least one resource set.
  • the resource set is one
  • the resource set is one resource pool in the at least one resource pool
  • the indication information is used to indicate the identifier of the resource pool.
  • determining at least one resource set by the first terminal device includes:
  • the first terminal device For each resource pool in at least one resource pool configured or pre-configured by a network device, the first terminal device obtains at least one available resource from the resource pool through sensing or channel busy rate CBR measurement to obtain the at least one resource pool.
  • a collection of resources For each resource pool in at least one resource pool configured or pre-configured by a network device, the first terminal device obtains at least one available resource from the resource pool through sensing or channel busy rate CBR measurement to obtain the at least one resource pool.
  • an embodiment of the present application provides a resource selection method for auxiliary link communication, including:
  • the second terminal device receives the instruction information sent by the first terminal device via the secondary link, the instruction information is used to indicate the at least one resource set, and the resources in the at least one resource set are determined by the first terminal device Available resources, the indication information is carried on the secondary link physical layer data channel PSSCH;
  • the second terminal device uses the resource to perform auxiliary link communication.
  • the second terminal device receiving the instruction information sent by the first terminal device through the auxiliary link includes:
  • the second terminal device receives the instruction information sent by the first terminal device through the auxiliary link broadcast.
  • the above method also includes:
  • the second terminal device receives the first identifier sent by the first terminal device through the secondary link broadcast, the first identifier is carried on the secondary link control information SCI, and the first identifier is used to communicate to the second terminal
  • the device indicates that the indication information is carried on the PSSCH.
  • the second terminal device receiving the instruction information sent by the first terminal device through the auxiliary link includes:
  • the second terminal device receives the instruction information sent by the first terminal device through the auxiliary link multicast.
  • the above method also includes:
  • the second terminal device receives a second identifier sent by the first terminal device via secondary link multicast, the second identifier is carried on the secondary link control information SCI, and the second identifier is used to indicate the In the multicast group where the second terminal device is located, the second identifier is also used to indicate to the multicast group that the indication information is carried on the PSSCH.
  • the indication information is used to indicate time domain information and frequency domain information of each resource set in the at least one resource set.
  • the resource set is one
  • the resource set is one resource pool in the at least one resource pool
  • the indication information is used to indicate the identifier of the resource pool.
  • an embodiment of the present application provides a communication device, including:
  • a processing unit configured to determine at least one resource set, where resources in the at least one resource set are available resources determined by the first terminal device;
  • the transceiver unit is configured to send indication information to the second terminal device through the secondary link, where the indication information is used to indicate the at least one resource set, and the indication information is carried on the secondary link physical layer data channel PSSCH.
  • the transceiver unit is configured to broadcast the indication information to the second terminal device through an auxiliary link.
  • the transceiver unit is further configured to broadcast a first identifier to the second terminal device, the first identifier is carried on the secondary link control information SCI, and the first identifier is used to broadcast
  • the second terminal device instructs the PSSCH to carry the indication information.
  • the transceiver unit is configured to multicast the indication information to the second terminal device through an auxiliary link.
  • the transceiver unit is further configured to multicast a second identifier to each second terminal device in the multicast group through the secondary link, and the second identifier is carried on the secondary link control information SCI
  • the second identifier is used to indicate the multicast group, and the second identifier is also used to indicate to the multicast group that the indication information is carried on the PSSCH.
  • the indication information is used to indicate time domain information and frequency domain information of each resource set in the at least one resource set.
  • the resource set is one
  • the resource set is one resource pool in the at least one resource pool
  • the indication information is used to indicate the identifier of the resource pool.
  • the processing unit is configured for each resource pool in at least one resource pool configured or pre-configured for a network device, and the first terminal device senses or channel busy from the resource pool. Rate CBR measurement to obtain at least one available resource to obtain the at least one resource set.
  • an embodiment of the present application provides a communication device, including:
  • the transceiving unit is configured to receive indication information sent by the first terminal device via the secondary link, where the indication information is used to indicate the at least one resource set, and the resources in the at least one resource set are determined by the first terminal device
  • the available resources of, the indication information is carried on the secondary link physical layer data channel PSSCH;
  • a processing unit configured to select a resource for auxiliary link communication from the at least one resource set according to the instruction information
  • the transceiver unit is also configured to use the resource to perform auxiliary link communication.
  • the transceiver unit is configured to receive the indication information broadcasted by the first terminal device through the auxiliary link.
  • the transceiving unit is further configured to receive a first identifier sent by the first terminal device through a secondary link broadcast, and the first identifier is carried on the secondary link control information SCI, and the The first identifier is used to indicate to the second terminal device that the indication information is carried on the PSSCH.
  • the transceiving unit is configured to receive the instruction information sent by the first terminal device through the auxiliary link multicast.
  • the transceiver unit is further configured to receive a second identifier sent by the first terminal device via a secondary link multicast, and the second identifier is carried on the secondary link control information SCI, so The second identifier is used to indicate the multicast group where the second terminal device is located, and the second identifier is also used to indicate to the multicast group that the indication information is carried on the PSSCH.
  • the indication information is used to indicate time domain information and frequency domain information of each resource set in the at least one resource set.
  • the resource set is one
  • the resource set is one resource pool in the at least one resource pool
  • the indication information is used to indicate the identifier of the resource pool.
  • an embodiment of the present invention provides an electronic device, including a processor, a memory, and a computer program stored on the memory and capable of running on the processor.
  • the processor executes the program, the first Aspects or methods in the various possible implementations of the first aspect.
  • an embodiment of the present invention provides an electronic device, including a processor, a memory, and a computer program stored on the memory and capable of running on the processor.
  • the processor executes the program, the second Aspect or the methods in the various possible implementations of the second aspect.
  • the embodiments of the present application provide a computer program product containing instructions, which when run on an electronic device, cause the electronic device computer to execute the above-mentioned first aspect or the methods in the various possible implementations of the first aspect .
  • embodiments of the present application provide a computer program product containing instructions that, when run on an electronic device, enable the electronic device to execute the above-mentioned second aspect or the methods in the various possible implementations of the second aspect.
  • an embodiment of the present application provides a readable storage medium that stores instructions in the readable storage medium, which when run on an electronic device, causes the electronic device to execute the above-mentioned first aspect or the first aspect.
  • an embodiment of the present application provides a readable storage medium that stores instructions in the readable storage medium, which when run on an electronic device, causes the electronic device to execute the above-mentioned second aspect or the second aspect.
  • the first terminal device senses available resources from at least one resource pool to obtain at least one resource set, and sends indication information to the second terminal device to send indication information to at least one first terminal device.
  • the second terminal device indicates the at least one resource set, so that the second terminal device selects a suitable resource from the at least one resource set for auxiliary link communication when performing auxiliary link communication.
  • FIG. 1A is a schematic diagram of a network architecture to which the method for selecting communication resources of a secondary link provided by an embodiment of the present application is applicable;
  • FIG. 1B is a schematic diagram of a network architecture to which the method for selecting communication resources of a secondary link provided by an embodiment of the present application is applicable;
  • FIG. 2 is a flowchart of a method for selecting resources for auxiliary link communication according to an embodiment of the present application
  • FIG. 3 is a schematic diagram of a method for selecting resources for auxiliary link communication provided by an embodiment of the present application applied to a V2P scenario;
  • FIG. 4 is a schematic diagram of a resource set in a method for selecting a resource for auxiliary link communication provided by an embodiment of the present application
  • FIG. 5 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 6 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 7 is a schematic structural diagram of an electronic device provided by an embodiment of the application.
  • the resource allocation method is divided into a scheduling resource allocation method and a secondary link resource awareness selection method.
  • a simplified form of the auxiliary link resource perception selection method is the method of directly selecting randomly without perception.
  • the network device configuration or pre-configuration of the resource pool for auxiliary link communication requires the V2X device to perform auxiliary link communication from Resources used for auxiliary link communication are randomly selected from the resource pool. In this process, because in at least one of the configured resource pools, the resource range randomly selected by the user cannot be flexibly adjusted according to the resource occupancy of the area where the V2X device is located.
  • the network device When the network device is configured or the resources in the pre-configured resource pool When it is relatively small, the communication reliability of the auxiliary link between the V2X devices is poor; at the same time, the problem of low resource utilization may also occur.
  • the network device in the random selection method of auxiliary link resources, the network device is pre-configured with 3 resource pools, namely resource pool 1, resource pool 2, and resource pool 3. Among them, most of the resources in resource pool 1 and resource pool 2 have been Occupied, there are many idle resources in resource pool 3.
  • the probability of the resources in each resource pool being selected is one-third, resulting in resource pool 3. The resource utilization rate is low.
  • an embodiment of the present application provides a resource selection method for secondary link communication.
  • the first terminal device determines the available resources from the resource pool through sensing or channel busy ratio (CBR) measurement results.
  • CBR channel busy ratio
  • Terminal equipment or other terminal equipment performs auxiliary link communication.
  • the first terminal device determines available resources from the at least one resource pool to obtain at least one resource set.
  • a certain resource pool contains 100 resources, and the first terminal device determines 30 available resources from them to obtain a resource set.
  • at least one resource pool may be configured by a network device or configured in advance.
  • the first terminal device may be, for example, a terminal device that is not sensitive to power consumption, such as a road side unit (RSU).
  • RSU road side unit
  • the second terminal device requires resources for auxiliary link communication.
  • a terminal device that needs to send or receive data through the auxiliary link, the object of the auxiliary link communication may be the first terminal device or other terminal devices.
  • the second terminal device may be, for example, a terminal device that is sensitive or insensitive to power consumption.
  • FIG. 1A is a schematic diagram of a network architecture to which the method for selecting a secondary link communication resource provided by an embodiment of the present application is applicable.
  • the network architecture includes a first terminal device and at least one second terminal device. Among them, both the first terminal device and the second terminal device can use the sidelink to communicate.
  • the auxiliary link can also be called a direct link, a unilateral link, etc., and the auxiliary link communication can also be called a direct Communication etc.
  • the first terminal device may communicate with any second terminal device through the auxiliary link; for another example, each second terminal device may communicate with each other through the auxiliary link.
  • the first terminal device senses the available resources in the resource pool to obtain a resource set, and indicates the resource sets to the second terminal device, so that the second terminal device selects available resources from the resource sets to perform auxiliary link communication.
  • FIG. 1B is a schematic diagram of a network architecture to which the method for selecting communication resources of a secondary link provided by an embodiment of the present application is applicable.
  • the network architecture is applied to NR V2X communication.
  • NR V2X communication includes the communication between vehicle and vehicle (V2V) and the communication between vehicle and roadside infrastructure (V2I). , Vehicle to pedestrian (V2P) communication, vehicle to network (V2N) communication, etc.
  • V2X Vehicle to pedestrian
  • V2N vehicle to network
  • the aforementioned vehicle-to-everything communication is collectively referred to as V2X (X stands for anything) communication.
  • the first terminal device is, for example, a road side unit (RSU) and other terminal devices that are not sensitive to power consumption
  • the second terminal device is, for example, a vehicle, pedestrian terminal device, road side unit (RSU), etc. Any of the terminal devices that are sensitive or insensitive to power consumption.
  • FIG. 2 is a flowchart of a method for selecting resources for secondary link communication according to an embodiment of the present application. This embodiment is described from the perspective of interaction between a first terminal device and a second terminal device. This embodiment includes:
  • the first terminal device determines at least one resource set, and resources in the at least one resource set are available resources determined by the first terminal device.
  • the at least one resource set is obtained by the first terminal device through sensing or CBR measurement of resources in the at least one resource pool.
  • the network device configures or pre-configures one or more resource pools.
  • the first terminal device adopts a sensing method to exclude the resources that may be occupied in the resource pool, and use all or part of the remaining resources as a resource set , To obtain at least one resource set; or, the first terminal device uses the CBR measurement method to select a resource pool from at least one resource pool, and use the resource pool as a resource set.
  • the resource set is one.
  • the first terminal device adopts the CBR measurement mode
  • multiple resource pools can also be selected from them, and each resource pool is used as the above-mentioned resource set, so as to obtain at least one resource set.
  • the advantage of this method is that although the first terminal device regards all resources in a certain resource pool as a resource set, since only one resource set and one resource pool are indicated, the signaling overhead of the first terminal device is small.
  • the first terminal device sends indication information to the second terminal device through the secondary link, where the indication information is used to indicate the at least one resource set, and the indication information is carried on the secondary link physical layer data channel PSSCH .
  • the second terminal device receives the instruction information sent by the first terminal device through the secondary link, and the instruction information is carried on the secondary link physical layer data channel (physical sidelink shared channel, PSSCH).
  • the secondary link physical layer data channel physical sidelink shared channel, PSSCH.
  • sending the instruction information by the first terminal device to the second terminal device means that the first terminal device sends the PSSCH carrying the instruction information to the second terminal device.
  • the first terminal device broadcasts indication information to each second terminal device through the auxiliary link, that is, the first terminal device broadcasts the PSSCH carrying the indication information.
  • the first terminal device In order to inform the second terminal device that the indication information is carried on the PSSCH, the first terminal device also broadcasts a first identifier to the second terminal device through the secondary link.
  • the first identifier is carried in the sidelink control information (SCI).
  • the SCI is sent through the secondary link physical layer control channel (physical sidelink control channel, PSCCH).
  • the first terminal device multicasts the indication information to each second terminal device in a multicast group through the auxiliary link, that is, the first terminal device multicasts the PSSCH carrying the indication information.
  • the first terminal device In order to inform the second terminal device in the multicast group that the indication information is carried on the PSSCH and which multicast group is the target, the first terminal device also multicasts a second identifier to each multicast group through the auxiliary link, the second identifier It is carried on the secondary link control information (sidelink control information, SCI).
  • SCI sidelink control information
  • the SCI is sent through the secondary link physical layer control channel (PSCCH).
  • PSCCH secondary link physical layer control channel
  • the second identifier is used to indicate the multicast group, and the second identifier is used to indicate the multicast group.
  • the identifier is also used to indicate to the second terminal device that the indication information is carried on the PSSCH.
  • the second terminal device selects a resource for auxiliary link communication from the at least one resource set according to the indication information.
  • the second terminal device determines at least one resource set according to the indication information, and selects a resource for auxiliary link communication from it, and the resource may be, for example, a time-frequency resource.
  • the indication information is sent by multicast, it means that the at least one resource set is shared by each second terminal device in the multicast group.
  • each second terminal device can also sense The method selects the resource for auxiliary link communication from at least one resource set.
  • the second terminal device uses the resource to perform auxiliary link communication.
  • the second terminal device uses the resource to perform auxiliary link communication with the first terminal device or other terminal devices.
  • the first terminal device obtains at least one resource set by obtaining available resources from at least one resource pool through sensing or CBR measurement, and sends indication information to the second terminal device to At least one second terminal device indicates the at least one resource set, so that the second terminal device selects a suitable resource from the at least one resource set for auxiliary link communication when performing auxiliary link communication.
  • FIG. 3 is a schematic diagram of a method for selecting resources for auxiliary link communication provided by an embodiment of the present application applied to a V2P scenario.
  • the first terminal device is the terminal device 1, which can be a user such as RSU that can transmit information to the P device through the PC5 port, where the P device refers to a pedestrian device in V2P communication, and it can also transmit information through the PC5 port. It is understood as the transmission of information through the auxiliary link.
  • the second terminal device is, for example, terminal device 2 to terminal device 5. It can be a pedestrian device in V2P communication, such as a pedestrian's mobile phone and other devices capable of receiving information through the PC5 port, and it can also receive information through the PC5 port.
  • the second terminal device Since the second terminal device is more sensitive to power consumption, it uses a random selection method of auxiliary link resources to select resources for auxiliary link communication.
  • the first terminal device is set at an intersection, and the first terminal device periodically senses or determines the available resources in the resource pool through CBR measurement to obtain at least A resource set, and then the first terminal device informs the second terminal device of the newly determined resource set through the instruction information, that is, when the terminal device 2-5 drives near the intersection, it receives the instruction information sent by the first terminal, so that the terminal Devices 2 to 5 select resources for auxiliary link communication from at least one resource set, and send their own location information, speed information, travel direction, etc.
  • the terminal device 2 selects resources for auxiliary link communication from at least one resource set, and sends its own location information, driving direction and other information to other vehicle terminal devices through the selected resources, so as to prevent the terminal device 2 from interacting with other vehicle terminal devices.
  • the indication information is used to indicate time domain information and frequency domain information of each resource in the at least one resource set.
  • the resources contained in a resource set can be determined by time domain information and frequency domain information.
  • the time domain information is all the time slots contained in the resource set in the time domain
  • the frequency domain information is the frequency domain information of the resource set. All resource blocks (RB) and subchannels (subchannels) included in the domain.
  • FIG. 4 is a schematic diagram of a resource set in a resource selection method for auxiliary link communication provided in an embodiment of the present application.
  • the time domain granularity of a resource pool is slot (slot), the frequency domain granularity is subchannel (subchannel), and a subchannel contains m resource blocks (RB).
  • m is a high-level configuration. Assuming that the time domain position of the resource pool is t 1 ⁇ t n , and the frequency domain position is subchannel1 ⁇ subchannel10, the first terminal device perceives that the occupied resources in the resource pool include time slot t through a local or global perception method.
  • the resource set obtained by the first terminal device includes All or part of the time-frequency resources are not occupied in the resource pool.
  • the time domain information indicated by the indication information is t 1 to t n-6
  • the frequency domain information is subchannel4 to subchannel10, indicating that the first terminal device uses part of the unoccupied time-frequency resources as resources in the resource set, as shown in the figure
  • the horizontal line fills the part as shown.
  • the first terminal device When the first terminal device sends the instruction information to each second terminal device, it can be sent in a multicast mode or a broadcast mode.
  • the first terminal device uses scheduling or random selection of auxiliary link resources to select resources for auxiliary link communication, and uses the resources to send PSCCH and/or PSSCH, where the PSSCH carries indication information , SCI is carried on the PSCCH, and the first identifier is carried on the SCI, which is used to inform the second terminal that the indication information carried on the PSSCH is used to indicate one or more resource sets.
  • the first terminal device uses scheduling or random selection of auxiliary link resources to select resources for auxiliary link communication, and uses the resources to send PSCCH and/or PSSCH, where the PSSCH bears indication Information, the PSCCH carries the SCI, and the second identifier is carried on the SCI, which is used to inform the second terminal that the indication information carried on the PSSCH is used to indicate one or more resource sets and multicast groups.
  • the second terminal device determines whether it belongs to the multicast group. If it is a member of the multicast group, it can determine at least one resource set according to the instruction information, and select a resource set for auxiliary link communication from it. Resources, if they are not members of the multicast group, they cannot use resources in at least one resource set.
  • the resource set is one, the resource set is one resource pool in the at least one resource pool, and the indication information is used to indicate the identifier of the resource pool.
  • which resources are in a resource pool are agreed in advance, and the appointment information is pre-configured on the first terminal device and the second terminal device, or the network device periodically broadcasts to the first terminal device and the second terminal device.
  • the second terminal device may send indication information to the second terminal device through secondary link high-level signaling, for example, the secondary link media access control (MAC) control element (CE).
  • MAC media access control
  • CE control element
  • the first terminal device uses the scheduling method (also referred to as mode 1 in NR V2X communication) or the random selection method of secondary link resources (also referred to as mode 2 in NR V2X communication) to select Secondary link communication resources, which are used to send PSCCH and/or PSSCH, where the PSSCH carries indication information, the PSCCH carries the SCI, and the SCI carries the first identifier, which is used to inform the second terminal of the indication carried on the PSSCH The information is used to indicate the resource pool identifier.
  • the scheduling method also referred to as mode 1 in NR V2X communication
  • the random selection method of secondary link resources also referred to as mode 2 in NR V2X communication
  • the first terminal device uses scheduling or random selection of auxiliary link resources to select resources for auxiliary link communication, and uses the resources to send PSCCH and/or PSSCH, where the PSSCH bears indication Information, the PSCCH carries the SCI, and the second identifier is carried on the SCI, which is used to inform the second terminal that the indication information carried on the PSSCH is used to indicate one or more resource sets and multicast groups.
  • the second terminal device determines whether it belongs to the multicast group. If it is a member of the broadcast group, it can determine the resource pool corresponding to the resource pool identifier according to the instruction information, and select it for the secondary chain. If the resource of the channel communication is not a member of the multicast group, the resource pool corresponding to the resource pool identifier cannot be used.
  • FIG. 5 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • the communication device 100 may be implemented in software and/or hardware. As shown in FIG. 5, the communication device 100 includes:
  • the processing unit 11 is configured to determine at least one resource set, and the resources in the at least one resource set are available resources determined by the first terminal device;
  • the transceiver unit 12 is configured to send indication information to the second terminal device through the secondary link, the indication information is used to indicate the at least one resource set, and the indication information is carried on the secondary link physical layer data channel PSSCH.
  • the transceiver unit 12 is configured to broadcast the indication information to the second terminal device through an auxiliary link.
  • the transceiving unit 12 is further configured to broadcast a first identifier to the second terminal device, the first identifier is carried on the secondary link control information SCI, and the first identifier is used for Instruct the second terminal device to carry the indication information on the PSSCH.
  • the transceiver unit 12 is configured to multicast the indication information to the second terminal device through a secondary link.
  • the transceiving unit 12 is also configured to multicast a second identifier to each second terminal device in the multicast group through the secondary link, and the second identifier is carried in the secondary link control information SCI
  • the second identifier is used to indicate the multicast group
  • the second identifier is also used to indicate to the multicast group that the indication information is carried on the PSSCH.
  • the indication information is used to indicate time domain information and frequency domain information of each resource set in the at least one resource set.
  • the resource set is one
  • the resource set is one resource pool in the at least one resource pool
  • the indication information is used to indicate the identifier of the resource pool.
  • the processing unit 11 is configured for each resource pool in at least one resource pool configured or pre-configured for a network device, and the first terminal device senses or channels from the resource pool.
  • the busy rate CBR measurement obtains at least one available resource to obtain the at least one resource set.
  • the communication device provided in the embodiment of the present application can perform the actions of the first terminal device in the foregoing embodiment, and its implementation principles and technical effects are similar, and details are not described herein again.
  • FIG. 6 is a schematic structural diagram of a communication device provided by an embodiment of the application.
  • the communication device 200 may be implemented in software and/or hardware. As shown in FIG. 6, the communication device 200 includes:
  • the transceiving unit 21 is configured to receive indication information sent by the first terminal device through the secondary link, the indication information is used to indicate the at least one resource set, and the resource in the at least one resource set is the first terminal device The determined available resource, the indication information is carried on the secondary link physical layer data channel PSSCH;
  • the processing unit 22 is configured to select a resource for auxiliary link communication from the at least one resource set according to the indication information
  • the transceiver unit 21 is also configured to use the resources to perform auxiliary link communication.
  • the transceiver unit 21 is configured to receive the indication information broadcasted by the first terminal device via the auxiliary link.
  • the transceiving unit 21 is further configured to receive the first identifier sent by the first terminal device through the secondary link broadcast, and the first identifier is carried on the secondary link control information SCI, so The first identifier is used to indicate to the second terminal device that the indication information is carried on the PSSCH.
  • the transceiving unit 21 is configured to receive the instruction information sent by the first terminal device through the auxiliary link multicast.
  • the transceiving unit 21 is further configured to receive a second identifier sent by the first terminal device via secondary link multicast, and the second identifier is carried on the secondary link control information SCI,
  • the second identifier is used to indicate a second terminal device in the multicast group, and the second identifier is also used to indicate to the second terminal device that the indication information is carried on the PSSCH.
  • the indication information is used to indicate time domain information and frequency domain information of each resource set in the at least one resource set.
  • the resource set is one
  • the resource set is one resource pool in the at least one resource pool
  • the indication information is used to indicate the identifier of the resource pool.
  • the communication device provided in the embodiment of the present application can perform the actions of the second terminal device in the foregoing embodiment, and its implementation principles and technical effects are similar, and details are not described herein again.
  • the above transceiving unit may be a transceiver in actual implementation, and the processing unit may be implemented in a form of software calling through processing elements; it may also be implemented in a form of hardware.
  • the processing unit may be a separate processing element, or it may be integrated in a chip of the above-mentioned device for implementation.
  • it may also be stored in the memory of the above-mentioned device in the form of program code, and a certain processing element of the above-mentioned device Call and execute the functions of the above processing unit.
  • all or part of these units can be integrated together or implemented independently.
  • the processing element described here may be an integrated circuit with signal processing capability. In the implementation process, each step of the above method or each of the above units can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.
  • the above units may be one or more integrated circuits configured to implement the above methods, for example: one or more application specific integrated circuits (ASIC), or one or more microprocessors (Digital Signal Processor, DSP), or, one or more Field Programmable Gate Array (Field Programmable Gate Array, FPGA), etc.
  • ASIC application specific integrated circuits
  • DSP Digital Signal Processor
  • FPGA Field Programmable Gate Array
  • the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call program codes.
  • CPU central processing unit
  • these units can be integrated together and implemented in the form of System-On-a-Chip (SOC).
  • SOC System-On-a-Chip
  • FIG. 7 is a schematic structural diagram of an electronic device provided by an embodiment of the application.
  • the electronic device may be the aforementioned first terminal device or second terminal device.
  • the electronic device 300 includes:
  • the memory 32 stores computer execution instructions
  • the processor 31 executes the computer-executable instructions stored in the memory 32, so that the processor 31 executes the resource selection method of the auxiliary link communication performed by the first terminal device or the auxiliary link communication performed by the second terminal device. Resource selection method.
  • the electronic device 300 further includes a communication component 33.
  • the processor 31, the memory 32, and the communication component 33 may be connected by a bus 34.
  • the embodiment of the present application further provides a readable storage medium, the readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, they are used to implement the auxiliary link communication performed by the first terminal device as above.
  • the embodiment of the present application also provides a computer program product, when the computer program product runs on the core network device, it is used to implement the resource selection method of the auxiliary link communication executed by the core network device; or, when the computer program When running on the second terminal device, it is used to implement the resource selection method of the auxiliary link communication performed by the second terminal device.
  • a person of ordinary skill in the art can understand that all or part of the steps in the foregoing method embodiments can be implemented by a program instructing relevant hardware.
  • the aforementioned program can be stored in a computer readable storage medium. When the program is executed, it executes the steps including the foregoing method embodiments; and the foregoing storage medium includes: ROM, RAM, magnetic disk, or optical disk and other media that can store program codes.

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

Abstract

Selon des modes de réalisation, la présente invention concerne un procédé de sélection de ressources et un appareil de commutation de liaison latérale. Un premier dispositif terminal obtient des ressources disponibles à partir d'au moins un groupe de ressources au moyen d'une détection ou d'une mesure CBR pour obtenir au moins un ensemble de ressources, et envoie des informations d'indication à un second dispositif terminal de façon à indiquer au moins un ensemble de ressources à au moins un second dispositif terminal, de sorte que le second dispositif terminal sélectionne une ressource appropriée pour une communication de liaison latérale à partir dudit ensemble de ressources lors de l'établissement d'une communication de liaison latérale. La présente invention permet, étant donné que les ressources comprises dans ledit ensemble de ressources sont des ressources disponibles déterminées par le premier dispositif terminal au moyen d'une détection ou d'une mesure CBR, d'améliorer la fiabilité de la communication de liaison latérale et d'augmenter le taux d'utilisation des ressources.
PCT/CN2021/075581 2020-01-21 2021-02-05 Procédé de sélection de ressources et appareil de communication de liaison latérale Ceased WO2021148046A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023059425A1 (fr) * 2021-10-08 2023-04-13 Qualcomm Incorporated Détection côté récepteur pour coordination de liaison latérale entre ue

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111246483A (zh) * 2020-01-21 2020-06-05 北京展讯高科通信技术有限公司 辅链路通信的资源选择方法及装置
CN114071399A (zh) * 2020-07-31 2022-02-18 北京紫光展锐通信技术有限公司 资源选择方法及通信装置
CN114071400A (zh) * 2020-07-31 2022-02-18 华为技术有限公司 一种侧行链路通信方法及装置
CN114070499B (zh) * 2020-07-31 2025-06-17 北京紫光展锐通信技术有限公司 资源选择方法及通信装置
CN114070500B (zh) * 2020-07-31 2025-05-09 北京紫光展锐通信技术有限公司 辅链路通信方法及通信装置
WO2022027613A1 (fr) * 2020-08-07 2022-02-10 华为技术有限公司 Appareil et procédé de communication
KR20230074161A (ko) * 2020-09-25 2023-05-26 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 자원 집합을 전송하는 방법과 단말 장치
WO2022061752A1 (fr) 2020-09-25 2022-03-31 Oppo广东移动通信有限公司 Procédé, appareil, et dispositif de communication
WO2022061816A1 (fr) * 2020-09-27 2022-03-31 Lenovo (Beijing) Limited Procédés et appareil d'indication d'informations de liaison latérale
CN114286288B (zh) * 2020-09-28 2023-12-05 维沃移动通信有限公司 信息传输方法、资源选择方法、装置及电子设备
CN114339656B (zh) * 2020-09-29 2025-12-16 北京紫光展锐通信技术有限公司 辅链路资源处理方法及装置
JP2023543508A (ja) * 2020-09-30 2023-10-16 日本電気株式会社 通信方法、装置及びコンピュータ可読媒体
CN114339657B (zh) * 2020-09-30 2025-08-19 北京紫光展锐通信技术有限公司 辅链路资源选择方法、装置、电子设备及存储介质
CN112385251A (zh) * 2020-10-14 2021-02-19 北京小米移动软件有限公司 资源选择方法、资源选择装置及存储介质
WO2022133665A1 (fr) * 2020-12-21 2022-06-30 北京小米移动软件有限公司 Procédé et appareil de détermination d'ensemble de ressources auxiliaires, et support de stockage
CN112740724A (zh) * 2020-12-23 2021-04-30 北京小米移动软件有限公司 资源选择方法、资源选择装置及存储介质
WO2022141629A1 (fr) * 2021-01-04 2022-07-07 Oppo广东移动通信有限公司 Procédé de détermination de ressources, premier dispositif terminal et second dispositif terminal
CN114765902A (zh) * 2021-01-15 2022-07-19 大唐移动通信设备有限公司 一种信息处理方法、装置和可读存储介质
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CN115209533A (zh) * 2021-04-09 2022-10-18 上海朗帛通信技术有限公司 一种被用于无线通信的节点中的方法和装置
CN115334472B (zh) * 2021-05-10 2025-05-02 展讯通信（上海）有限公司 资源处理方法及装置
CN115334646A (zh) * 2021-05-10 2022-11-11 维沃移动通信有限公司 资源选择方法、装置及终端
CN115968031A (zh) * 2021-10-11 2023-04-14 维沃移动通信有限公司 信号传输方法、装置和终端设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016167703A1 (fr) * 2015-04-13 2016-10-20 Telefonaktiebolaget Lm Ericsson (Publ) Procédés de transmission conjointe de réseau étendu et liaison latérale pour équipement utilisateur permettant une communication de dispositif à dispositif
CN110089174A (zh) * 2016-08-08 2019-08-02 捷开通讯(深圳)有限公司 无线通信系统中无线装置间直接通讯的资源选择方法和装置
CN110958586A (zh) * 2018-09-27 2020-04-03 电信科学技术研究院有限公司 一种资源分配及接收资源分配的方法、设备、装置
CN110958096A (zh) * 2018-09-27 2020-04-03 电信科学技术研究院有限公司 一种资源指示方法及终端
CN111246483A (zh) * 2020-01-21 2020-06-05 北京展讯高科通信技术有限公司 辅链路通信的资源选择方法及装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10667239B2 (en) * 2017-03-10 2020-05-26 Futurewei Technologies, Inc. Method for resource selection

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016167703A1 (fr) * 2015-04-13 2016-10-20 Telefonaktiebolaget Lm Ericsson (Publ) Procédés de transmission conjointe de réseau étendu et liaison latérale pour équipement utilisateur permettant une communication de dispositif à dispositif
CN110089174A (zh) * 2016-08-08 2019-08-02 捷开通讯(深圳)有限公司 无线通信系统中无线装置间直接通讯的资源选择方法和装置
CN110958586A (zh) * 2018-09-27 2020-04-03 电信科学技术研究院有限公司 一种资源分配及接收资源分配的方法、设备、装置
CN110958096A (zh) * 2018-09-27 2020-04-03 电信科学技术研究院有限公司 一种资源指示方法及终端
CN111246483A (zh) * 2020-01-21 2020-06-05 北京展讯高科通信技术有限公司 辅链路通信的资源选择方法及装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HUAWEI, HISILICON: "Sidelink resource allocation mode 2", 3GPP DRAFT; R1-1812209, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Spokane, USA; 20181112 - 20181116, 11 November 2018 (2018-11-11), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051554081 *
ZTE, SANECHIPS: "Analysis of Mode 2 resource schemes on sidelink", 3GPP DRAFT; R1-1812733 ANALYSIS OF MODE 2 RESOURCE SCHEMES ON SIDELINK, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Spokane, USA; 20181112 - 20181116, 3 November 2018 (2018-11-03), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051478976 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023059425A1 (fr) * 2021-10-08 2023-04-13 Qualcomm Incorporated Détection côté récepteur pour coordination de liaison latérale entre ue
US12408051B2 (en) 2021-10-08 2025-09-02 Qualcomm Incorporated Receiver side sensing for sidelink inter-UE-coordination

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