WO2022082664A1 - Procédé et appareil d'envoi d'informations de ressources, et procédé et appareil de réception d'informations de ressources - Google Patents

Procédé et appareil d'envoi d'informations de ressources, et procédé et appareil de réception d'informations de ressources Download PDF

Info

Publication number
WO2022082664A1
WO2022082664A1 PCT/CN2020/122990 CN2020122990W WO2022082664A1 WO 2022082664 A1 WO2022082664 A1 WO 2022082664A1 CN 2020122990 W CN2020122990 W CN 2020122990W WO 2022082664 A1 WO2022082664 A1 WO 2022082664A1
Authority
WO
WIPO (PCT)
Prior art keywords
resource
reference signal
signal received
received power
rsrp
Prior art date
Application number
PCT/CN2020/122990
Other languages
English (en)
Chinese (zh)
Inventor
张健
纪鹏宇
王昕�
Original Assignee
富士通株式会社
张健
纪鹏宇
王昕�
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 富士通株式会社, 张健, 纪鹏宇, 王昕� filed Critical 富士通株式会社
Priority to PCT/CN2020/122990 priority Critical patent/WO2022082664A1/fr
Publication of WO2022082664A1 publication Critical patent/WO2022082664A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria

Definitions

  • the embodiments of the present application relate to the field of communication technologies.
  • Vehicle to Everything (V2X, Vehicle to Everything) is a vehicle communication technology. Compared with the cellular communication using the Uu link, the V2X sending device communicates directly with the receiving device through a sidelink.
  • New Radio (NR New Radio) V2X is an important project of 5G Rel-16. Compared with Long Term Evolution (LTE, Long Term Evolution) V2X of Rel-14/Rel-15, NR V2X can support more scenarios and services, and can Meet higher performance demands.
  • the physical channels defined by NR V2X include Physical Sidelink Control Channel (PSCCH, Physical Sidelink Control Channel), Physical Sidelink Shared Channel (PSSCH, Physical Sidelink Shared Channel) and Physical Sidelink Feedback Channel (PSFCH, Physical Sidelink Feedback Channel) ).
  • PSCCH carries 1st stage side link control information (SCI, Sidelink Control Informaiton), and 1st stage SCI is mainly used to reserve resources.
  • PSSCH carries 2nd stage SCI and transport block (TB, Transport Block), of which 2nd stage SCI is mainly used for TB demodulation.
  • the PSFCH carries sidelink feedback information (may be referred to as HARQ-ACK).
  • the resources (time-frequency resources) used for side link transmission are located in a certain resource pool.
  • NR V2X defines two working modes.
  • NR V2X mode 1 (Mode 1)
  • the resources used by the terminal device for V2X communication are scheduled or configured by the network device (base station) through the NR Uu link.
  • NR V2X Mode 2 (Mode 2)
  • the terminal device can autonomously select time-frequency resources for V2X communication based on the sensing results.
  • the terminal device selects and sends resources based on its own sensing result, which can avoid interference or collision between devices to a certain extent. But in some cases, there will still be resource sending collisions. Therefore, as an enhancement to Mode 2 of autonomous resource selection, inter-device collaboration has also become one of the research contents of Rel-17 V2X. The specific way of cooperation between devices is a problem to be studied and solved.
  • embodiments of the present application provide a method and apparatus for sending and receiving resource information.
  • a method for sending resource information including:
  • the first terminal device performs sensing, and obtains the reserved first resource and a reference signal received power (RSRP) and a receiving priority corresponding to the first resource;
  • RSRP reference signal received power
  • the first terminal device determines a second resource that needs to be sent to the second terminal device in the first resource, and determines a reference signal received power (RSRP) according to a reference signal received power (RSRP) corresponding to the second resource instructions; and
  • the first terminal device sends auxiliary information to the second terminal device;
  • the auxiliary information includes the second resource and the reference signal received power (RSRP) indication information;
  • the reference signal received power (RSRP) ) indication information indicates that the reference signal received power (RSRP) S corresponding to the second resource is located in the nth reference signal received power (RSRP) interval in the N reference signal received power (RSRP) intervals, Th n ⁇ S ⁇ Th n+1 ; 1 ⁇ n ⁇ N, Th 1 ⁇ Th 2 ⁇ ... ⁇ Th N ⁇ Th N+1 .
  • an apparatus for sending resource information including:
  • a sensing unit which performs sensing and obtains the reserved first resource and the reference signal receiving power and the receiving priority corresponding to the first resource
  • a determining unit which determines a second resource that needs to be sent to the second terminal device in the first resource; and determines the reference signal received power indication information according to the reference signal received power corresponding to the second resource;
  • a sending unit which sends auxiliary information to the second terminal device;
  • the auxiliary information includes the second resource and the reference signal received power indication information; wherein the reference signal received power indication information indicates the second
  • the reference signal received power S corresponding to the resource is located in the nth reference signal received power interval in the N reference signal received power intervals, Th n ⁇ S ⁇ Th n+1 ; 1 ⁇ n ⁇ N, Th 1 ⁇ Th 2 ⁇ ... ⁇ Th N ⁇ Th N+1 .
  • a method for receiving resource information including:
  • the second terminal device senses
  • the second terminal device receives auxiliary information sent by the first terminal device; the auxiliary information includes reserved resources perceived by the first terminal device and corresponding reference signal received power indication information; wherein the reference signal The received power indication information indicates that the reference signal received power S corresponding to the resource is located in the nth reference signal received power interval in the N reference signal received power intervals, Th n ⁇ S ⁇ Th n+1 ; 1 ⁇ n ⁇ N, Th 1 ⁇ Th 2 ⁇ ... ⁇ Th N ⁇ Th N+1 .
  • a device for receiving resource information including:
  • a sensing unit which senses
  • a receiving unit which receives auxiliary information sent by a first terminal device; the auxiliary information includes reserved resources perceived by the first terminal device and corresponding reference signal received power indication information; wherein the reference signal received power
  • the indication information indicates that the reference signal received power S corresponding to the resource is located in the nth reference signal received power interval in the N reference signal received power intervals, Th n ⁇ S ⁇ Th n+1 ; 1 ⁇ n ⁇ N, Th 1 ⁇ Th 2 ⁇ ... ⁇ Th N ⁇ Th N+1 .
  • a communication system including:
  • the first terminal device performs sensing, and obtains the reserved first resource and the reference signal received power and the receiving priority corresponding to the first resource; and determines, in the first resource, the signal that needs to be sent to the second terminal device. the second resource, and determining the reference signal received power indication information according to the reference signal received power corresponding to the second resource; and
  • a second terminal device which performs sensing; and receives auxiliary information sent by the first terminal device;
  • the auxiliary information includes the second resource and the reference signal received power indication information;
  • the reference signal received power indication information indicates that the reference signal received power S corresponding to the second resource is located in the nth reference signal received power interval in the N reference signal received power intervals, Th n ⁇ S ⁇ Th n+ 1 ; 1 ⁇ n ⁇ N, Th 1 ⁇ Th 2 ⁇ ... ⁇ Th N ⁇ Th N+1 .
  • the first terminal device sends resource information and RSRP indication information to the second terminal device, where the RSRP indication information quantifies the RSRP and/or the receiving priority.
  • the RSRP indication information quantifies the RSRP and/or the receiving priority.
  • the second terminal device can select the one that suffers less interference when the candidate resources are insufficient. resources as candidate resources, thereby reducing or avoiding the problem of excessive resource exclusion.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application.
  • FIG. 2 is an example diagram of cooperation between devices according to an embodiment of the present application
  • FIG. 3 is another example diagram of cooperation between devices according to an embodiment of the present application.
  • FIG. 4 is another example diagram of cooperation between devices according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a method for sending resource information according to an embodiment of the present application.
  • FIG. 6 is an exemplary diagram of RSRP indication information in an embodiment of the present application.
  • FIG. 7 is another example diagram of RSRP indication information in an embodiment of the present application.
  • FIG. 8 is another example diagram of RSRP indication information in an embodiment of the present application.
  • FIG. 9 is an example diagram of a candidate resource in an embodiment of the present application.
  • FIG. 10 is an exemplary diagram of an available RSRP threshold according to an embodiment of the present application.
  • FIG. 11 is another example diagram of RSRP indication information according to an embodiment of the present application.
  • FIG. 12 is a schematic diagram of a method for receiving resource information according to an embodiment of the present application.
  • FIG. 13 is a schematic diagram of an apparatus for sending resource information according to an embodiment of the present application.
  • FIG. 14 is a schematic diagram of an apparatus for receiving resource information according to an embodiment of the present application.
  • 15 is a schematic diagram of a network device according to an embodiment of the present application.
  • FIG. 16 is a schematic diagram of a terminal device according to an embodiment of the present application.
  • the terms “first”, “second”, etc. are used to distinguish different elements in terms of numelation, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be referred to by these terms restricted.
  • the term “and/or” includes any and all combinations of one or more of the associated listed items.
  • the terms “comprising”, “including”, “having” and the like refer to the presence of stated features, elements, elements or components, but do not preclude the presence or addition of one or more other features, elements, elements or components.
  • the term "communication network” or “wireless communication network” may refer to a network that conforms to any of the following communication standards, such as Long Term Evolution (LTE, Long Term Evolution), Long Term Evolution Enhanced (LTE-A, LTE- Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed Packet Access (HSPA, High-Speed Packet Access) and so on.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution Enhanced
  • WCDMA Wideband Code Division Multiple Access
  • High-Speed Packet Access High-Speed Packet Access
  • HSPA High-Speed Packet Access
  • the communication between devices in the communication system can be carried out according to communication protocols at any stage, for example, including but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G , New Radio (NR, New Radio), etc., and/or other communication protocols currently known or to be developed in the future.
  • Network device refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services for the terminal device.
  • Network devices may include but are not limited to the following devices: base station (BS, Base Station), access point (AP, Access Point), transmission and reception point (TRP, Transmission Reception Point), broadcast transmitter, mobility management entity (MME, Mobile Management Entity), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller) and so on.
  • the base station may include but is not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), and 5G base station (gNB), etc., and may also include a remote radio head (RRH, Remote Radio Head) , Remote Radio Unit (RRU, Remote Radio Unit), relay (relay) or low power node (eg femeto, pico, etc.).
  • RRH Remote Radio Head
  • RRU Remote Radio Unit
  • relay relay
  • low power node eg femeto, pico, etc.
  • base station may include some or all of their functions, each base station may provide communication coverage for a particular geographic area.
  • the term "cell” may refer to a base station and/or its coverage area, depending on the context in which the term is used.
  • the term "User Equipment” (UE, User Equipment) or “Terminal Equipment” (TE, Terminal Equipment or Terminal Device), for example, refers to a device that accesses a communication network through a network device and receives network services.
  • a terminal device may be fixed or mobile, and may also be referred to as a mobile station (MS, Mobile Station), a terminal, a subscriber station (SS, Subscriber Station), an access terminal (AT, Access Terminal), a station, and the like.
  • the terminal device may include but is not limited to the following devices: Cellular Phone (Cellular Phone), Personal Digital Assistant (PDA, Personal Digital Assistant), wireless modem, wireless communication device, handheld device, machine type communication device, laptop computer, Cordless phones, smartphones, smart watches, digital cameras, and more.
  • Cellular Phone Cellular Phone
  • PDA Personal Digital Assistant
  • wireless modem wireless communication device
  • handheld device machine type communication device
  • laptop computer Cordless phones, smartphones, smart watches, digital cameras, and more.
  • the terminal device may also be a machine or device that performs monitoring or measurement, such as but not limited to: Machine Type Communication (MTC, Machine Type Communication) terminals, In-vehicle communication terminals, device-to-device (D2D, Device to Device) terminals, machine-to-machine (M2M, Machine to Machine) terminals, etc.
  • MTC Machine Type Communication
  • D2D Device to Device
  • M2M Machine to Machine
  • network side refers to one side of the network, which may be a certain base station, and may also include one or more network devices as described above.
  • user side or “terminal side” or “terminal device side” refers to the side of a user or terminal, which may be a certain UE, or may include one or more terminal devices as above.
  • equipment may refer to network equipment or terminal equipment.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application, which schematically illustrates the case of a terminal device and a network device as an example.
  • a communication system 100 may include a network device 101 and terminal devices 102 and 103 .
  • FIG. 1 only takes two terminal devices and one network device as an example for description, but the embodiment of the present application is not limited to this.
  • Enhanced Mobile Broadband eMBB, enhanced Mobile Broadband
  • Massive Machine Type Communication mMTC, massive Machine Type Communication
  • Ultra-Reliable and Low Latency Communication URLLC, Ultra-Reliable and Low.
  • -Latency Communication etc.
  • FIG. 1 shows that both terminal devices 102 and 103 are within the coverage of the network device 101, but the present application is not limited to this. Both terminal devices 102 , 103 may not be within the coverage of the network device 101 , or one terminal device 102 may be within the coverage of the network device 101 and the other end device 103 may be outside the coverage of the network device 101 .
  • side link transmission may be performed between the two terminal devices 102 and 103 .
  • the two terminal devices 102 and 103 can both perform side link transmission within the coverage of the network device 101 to implement V2X communication, or both can perform side link transmission outside the coverage of the network device 101 to implement V2X
  • one terminal device 102 is within the coverage of the network device 101 and another terminal device 103 is outside the coverage of the network device 101 to perform side link transmission to implement V2X communication.
  • the terminal devices 102 and/or 103 may autonomously select side link resources (ie, adopt Mode 2), and in this case, the side link transmission may be independent of the network device 101, that is, the network device 101 is optional of.
  • the embodiment of the present application may also combine the autonomous selection of side link resources (that is, using Mode 2) and the allocation of side link resources by the network device (that is, using Mode 1); the embodiment of the present application does not limit this.
  • terminal equipment can obtain side link transmission resources through the process of sensing detection + resource selection, in which terminal equipment can continuously sense (sensing) to obtain the occupancy of resources in the resource pool. For example, the terminal device can estimate the resource occupancy in a later period of time (called a selection window) according to the resource occupancy in a previous period of time (called a perception window).
  • a selection window the resource occupancy in a later period of time
  • a perception window the resource occupancy in a previous period of time
  • the terminal device selects and transmits resources based on its own sensing result, which can avoid interference or collision between devices to a certain extent.
  • the steps for resource selection can be found in subsection 8.1.4 of the standard TS 38.214 V16.2.0.
  • device B sends edge link information to device A, and there is an interference source device C around device A. Since device B cannot perceive device C, the transmission of device B will be interfered by device C; That is, device C can be considered as a hidden node.
  • the independent resource selection by the terminal device is one of the reasons for the collision problem and half-duplex problem in Mode 2.
  • inter-UE coordination can additionally provide terminal devices with information that cannot be obtained by relying on their own perception, thereby further avoiding collision problems and half-duplex problems.
  • inter-device collaboration has also become one of the research contents of the upcoming Rel-17 V2X. Collaboration between devices requires interaction information between devices, which can be called assistance information. Auxiliary information can be used to optimize resource selection.
  • auxiliary information can at least indicate (or include) resource information, that is, indicate a resource set.
  • the auxiliary information may indicate resources that the terminal device does not tend to use (or tend to use) obtained based on perception, resources occupied by the terminal device itself for transmission, and the like.
  • FIG. 2 is an example diagram of cooperation between devices according to an embodiment of the present application, where device C is a hidden node.
  • device A can send auxiliary information to device B, where the auxiliary information indicates the resources reserved by device C perceived by device A.
  • the auxiliary information indicates the resources reserved by device C perceived by device A.
  • device B can By avoiding the above-mentioned reserved resources, the aforementioned collision problem can be avoided.
  • FIG. 3 is another example diagram of cooperation between devices according to an embodiment of the present application.
  • device B wants to send side link data to device A
  • device B is called a sending device and device A is called a receiving device; device A can report auxiliary information to device B first.
  • auxiliary information includes the reserved resources perceived by device A
  • device B it is recommended that device B exclude resources during resource selection.
  • Device B also perceives the reserved resources, and determines the resources to be excluded based on its own perception. In order to prevent its own transmission from interfering with other devices, and at the same time to prevent its own transmission from being interfered by other devices, device B excludes the union of these two types of resources.
  • the shadow resources represent unavailable resources (reserved resources), that is, the candidate resources may not include shadow resources.
  • the candidate resource set may be an empty set, that is, there is no candidate resource.
  • device B can increase the RSRP threshold of the resource that it perceives, but cannot increase the RSRP threshold of the resource reported by device A.
  • FIG. 4 is another example diagram of inter-device cooperation according to an embodiment of the present application.
  • device B can not only increase the RSRP threshold of resources it perceives, but also increase the RSRP threshold of resources reported by device A. That is, the device B can treat the RSRP and the receiving priority reported by the device A as the RSRP and the receiving priority that it perceives.
  • the resources excluded by device B are no longer all resources, and available candidate resources (such as 6 shown in Figure 4) appear.
  • the candidate resource set is not an empty set, which can balance
  • the interference received by device A is the same as the interference caused by the transmission of device B, thereby avoiding excessive exclusion of resources.
  • the side link is described by taking V2X as an example, but the present application is not limited to this, and can also be applied to a side link transmission scenario other than V2X.
  • the terms “side link” and “V2X” are interchangeable, the terms “PSFCH” and “side link feedback channel” are interchangeable, and the terms “PSCCH” and “ “Sidelink Control Channel” or “Sidelink Control Information” are interchangeable, as are the terms “PSSCH” and “Sidelink Data Channel” or “Sidelink Data”.
  • transmitting or receiving PSCCH can be understood as sending or receiving side link control information carried by PSCCH; sending or receiving PSSCH can be understood as sending or receiving side link data carried by PSSCH; sending or receiving PSFCH can be understood as sending or receiving side link feedback information carried by PSFCH.
  • Sidelink transmission also called sidelink transmission
  • PSCCH/PSSCH transmission or sidelink data/information transmission can be understood as PSCCH/PSSCH transmission or sidelink data/information transmission.
  • the resource reported by the device is, for example, the reserved resource monitored by the device, and the resource reported by the device is, for example, the time-frequency position of the reported resource.
  • “Exclude resources” is a shorthand for “exclude candidate resources that cause overlap with resources”.
  • “Exclude a certain resource R” may be replaced by "determine a set of resources that does not include resource R", and so on.
  • An embodiment of the present application provides a method for sending resource information, which is described from a first terminal device.
  • the second terminal device can send the sidelink data to the first terminal device, so the second terminal device needs to perform resource selection to determine the sending resource of the sidelink data.
  • the second terminal device in this embodiment of the present application is a transmitting device
  • the first terminal device is a receiving device.
  • the first terminal device may send assistance information (which may also be referred to as resource information or resource set) to the second terminal device.
  • the auxiliary information may indicate the side link resource itself, or may indicate information related to the side link resource, such as priority, RSRP measurement result, and the like.
  • the terms “resource set” and “side information” or “resource information” are interchangeable without causing confusion.
  • the second terminal device uses the receiving priority to determine the initial RSRP threshold Th 1 , and judges whether the first resource exclusion needs to be performed according to the comparison result between the RSRP and Th 1 When the number of remaining candidate resources is less than the threshold, increase Th 1 by 3dB, and then continue to judge whether it is necessary to exclude resources in the second resource exclusion according to the comparison result between RSRP and Th 1 ; and so on.
  • the embodiment of the present application does not explicitly report the RSRP and the receiving priority, but instructs the second terminal device to exclude resources when performing the number of resource exclusions, which is actually a method of implicitly reporting the RSRP and the receiving priority. .
  • FIG. 5 is a schematic diagram of a method for sending resource information according to an embodiment of the present application. As shown in FIG. 5 , the method includes:
  • a first terminal device performs sensing, and obtains a reserved first resource and a reference signal received power (RSRP) and a receiving priority corresponding to the first resource;
  • RSRP reference signal received power
  • RSRP reference signal received power
  • the first terminal device sends auxiliary information to the second terminal device;
  • the auxiliary information includes the second resource and the reference signal received power (RSRP) indication information;
  • RSRP reference signal received power
  • the reference signal received power (RSRP) indication information indicates that the reference signal received power (RSRP) S corresponding to the second resource is located at the nth reference signal received power (RSRP) in the N reference signal received power (RSRP) intervals ( RSRP) interval, Th n ⁇ S ⁇ Th n+1 ; 1 ⁇ n ⁇ N, Th 1 ⁇ Th 2 ⁇ ... ⁇ Th N ⁇ Th N+1 .
  • FIG. 5 only schematically illustrates the embodiment of the present application, but the present application is not limited thereto.
  • the execution order of the various operations can be adjusted appropriately, and other operations can be added or some of the operations can be reduced.
  • Those skilled in the art can make appropriate modifications according to the above content, and are not limited to the description of the above-mentioned FIG. 5 .
  • the first terminal device may acquire multiple first resources through perception, and may select one or more second resources to be reported to the second terminal device from the multiple first resources.
  • the first terminal device (device A) also additionally reports RSRP indication information, the RSRP indication information is selected by the first terminal device and/or receive priority for quantification.
  • the quantization does not lose the accuracy of RSRP and/or reception priority, and can reduce signaling overhead; in addition, by using the RSRP indication information (indicating RSRP and receiving priority), the second terminal device (device B) can select a resource with less interference as a candidate resource when the candidate resource is insufficient, thereby reducing or avoiding the problem of excessive resource exclusion.
  • the N is the maximum number of times that the second terminal device performs resource exclusion during resource selection or reselection.
  • the N may be predefined, or may also be pre-configured, or may be configured by a network device, or may also be configured by the second terminal device.
  • N may be pre-configured in a certain resource pool; N may be configured by the base station for use in a certain resource pool; N may be notified by device B to device A through PC5-RRC or SCI.
  • the reference signal received power (RSRP) indication information includes bits. For example, the maximum number of times that the second terminal device performs resource exclusion during resource selection or reselection is 8, and the RSRP indication information includes 3 bits; or, the maximum number of times that the second terminal device performs resource exclusion during resource selection or reselection. For 4 times, the RSRP indication information includes 2 bits.
  • Th N+1 is positive infinity
  • the Th n is a reference signal received power (RSRP) threshold used when the second terminal device performs the nth resource exclusion.
  • RSRP reference signal received power
  • the first terminal device may further receive the transmission priority sent by the second terminal device; and determine the initial reference signal of the second resource according to the transmission priority and the reception priority corresponding to the second resource a received power (RSRP) threshold; and determining the Th 1 to be equal to the initial reference signal received power (RSRP) threshold.
  • RSRP received power
  • device A obtains the first information based on its own perception, where the first information includes the reserved resource, the RSRP of the resource, and the receiving priority of the resource.
  • the device A obtains second information including the transmission priority of the device B (the priority of the service to be sent by the device B).
  • the sending priority of device B There is no restriction on how device A obtains the sending priority of device B.
  • device B needs to send a service, and sends the sending priority of the service to be sent to device A.
  • Device B can also send request information at the same time to trigger device A to report auxiliary information.
  • the acquisition of the first information by the device A and the acquisition of the second information by the device A are not time-sensitive.
  • Device A may determine the first RSRP threshold Th 1 based on the receive priority and the transmit priority. More specifically, device A assumes that it replaces device B to select resources, determines Th 1 as the RSRP threshold used for the first resource exclusion, and uses the method for determining the initial RSRP threshold in resource selection to determine Th 1 , for example, Th 1 is determined.
  • Th 1 Th(prio RX ,prio TX ).
  • the reference signal received power (RSRP) indication information indicates that the reference signal received power (RSRP) corresponding to the second resource is located in the Nth reference signal received power (RSRP) interval;
  • the Th 1 is positive infinity, the auxiliary information does not include the second resource and corresponding reference signal received power (RSRP) indication information.
  • the nth RSRP interval can be expressed as Th n ⁇ RSRP ⁇ Th n+1 , where 1 ⁇ n ⁇ N-1.
  • the Nth RSRP interval can be expressed as Th N ⁇ RSRP or Th N ⁇ RSRP ⁇ Th N+1 .
  • Device A sends auxiliary information to device B, where the auxiliary information includes a resource whose RSRP is greater than the first RSRP threshold Th 1 among the reserved resources, and also includes RSRP indication information of the resource.
  • the RSRP indication information indicates which RSRP interval the RSRP is located in. In other words, the RSRP indication information indicates an RSRP interval index n (1 ⁇ n ⁇ N), where n satisfies Th n ⁇ RSRP ⁇ Th n+1 . For N RSRP intervals, you can use The bit indicates which RSRP interval the RSRP is located in, that is, the RSRP indication information is bits.
  • device A directly uses the RSRP indication information in the auxiliary information to indicate that the RSRP is located in the Nth (last) RSRP interval.
  • the reference signal received power (RSRP) indication information instructs the second terminal device to exclude the second resource when performing the m1th resource exclusion during resource selection or reselection; wherein 1 ⁇ m1 ⁇ n.
  • the reference signal received power (RSRP) indication information indicates that the second terminal device does not exclude the second resource when performing the m2th resource exclusion during resource selection or reselection; wherein, n ⁇ m2 ⁇ N.
  • device B receives auxiliary information sent by device A. For a resource indicated by the auxiliary information, if the RSRP indication information of the resource indicates that the RSRP is located in the nth (1 ⁇ n ⁇ N-1) RSRP interval, that is, the RSRP satisfies Th n ⁇ RSRP ⁇ Th n+1 , then Device B The resource is excluded during the mth (1 ⁇ m ⁇ n) resource exclusion, and the resource is not excluded during the kth (n+1 ⁇ k ⁇ N) resource exclusion; if the RSRP indication information of the resource indicates that the RSRP is located in the th N RSRP intervals, the device B excludes the resource in the mth (1 ⁇ m ⁇ N) resource exclusion.
  • the number of times that device B performs resource exclusion is the result of counting for the same device. For example, if device B receives auxiliary information from device A and device A', and device B needs to perform resource exclusion for device A and device A', the number of times of resource exclusion for device A and device A' is independently counted.
  • device B is restricted to perform resource exclusion at most N times. Since the RSRP indication information corresponds to Bit overhead, limiting the size of N is beneficial to control overhead and achieve a trade-off between overhead and performance.
  • one second resource in the auxiliary information corresponds to one reference signal received power (RSRP) indication information, or multiple second resources correspond to one reference signal received power (RSRP) indication information.
  • RSRP reference signal received power
  • the number of resources included in the auxiliary information is not necessarily equal to the number of RSRP indication information. If multiple resources are located in the same RSRP interval, one RSRP indication information may be used to indicate the multiple resources. Therefore, the number of resources is greater than or equal to the number of RSRP indication information.
  • FIG. 6 is an example diagram of RSRP indication information according to an embodiment of the present application.
  • Th 5 2 bits may be used to index each interval, that is, the RSRP indication information is 2 bits. "00", "01”, “10", and "11" respectively indicate the first to fourth RSRP intervals.
  • device A determines the RSRP indication information of the resource is "01".
  • the device B After receiving the RSRP indication information "01", the device B cannot know the absolute values of the RSRP and the receiving priority, nor the absolute values of the first to fourth RSRP thresholds.
  • the information that the device B can know is limited to that the RSRP is greater than the second RSRP threshold and less than or equal to the third RSRP threshold. Since the RSRP is greater than the second RSRP threshold, device B knows that the resource should be excluded during the first resource exclusion; if the second resource exclusion needs to be performed, the resource should also be excluded during the second resource exclusion. Since the RSRP is not greater than the third RSRP threshold, device B knows that if the third resource exclusion needs to be performed, the resource need not be excluded during the third resource exclusion. In other words, the resources are generally interfered at this time, and relatively speaking, the resources are less interfered resources, so they can be used as available resources.
  • N generally does not need to take a large value.
  • N represents the degree of relaxation of the RSRP threshold, and excessive relaxation of the RSRP threshold will introduce greater interference; is the degree of relaxation of the RSRP threshold in the perception of device A. Even after reaching the maximum value N, more available resources can be generated by relaxing the RSRP threshold in the perception of device B itself.
  • FIG. 7 is another example diagram of RSRP indication information according to an embodiment of the present application.
  • the indication of the RSRP interval can also be regarded as a quantification of the RSRP.
  • the four RSRP intervals it can be regarded as quantizing the RSRP into four discrete values Q, Q+3, Q+6, Q+9, where
  • FIG. 8 is another example diagram of RSRP indication information according to an embodiment of the present application, which schematically illustrates a situation where the initial RSRP thresholds of two resources are different.
  • the receiving priorities of the two resources are different, so that the initial RSRP thresholds (Th i and Th j ) of the resources are different, that is, Thi ⁇ Th j .
  • the RSRP interval divisions determined by the two resources based on their respective initial RSRP thresholds are also different.
  • the indication of the RSRP interval (or the quantization of the RSRP) is performed independently for each resource. Assuming that the RSRPs of the two resources are located in their respective second RSRP intervals, both resources are quantized as "01".
  • FIG. 9 is an example diagram of a candidate resource according to an embodiment of the present application, and schematically illustrates the change of the second terminal device every time the resource excludes the unavailable resource.
  • 8 resources whose RSRP indication information is "00", “01", “10", and “11” become unavailable resources.
  • the 6 resources whose RSRP indication information is "01", "10", and "11” become unavailable resources. And so on. It can be seen that, as the number of times of resource exclusion increases, the number of unavailable resources gradually decreases, in other words, the number of candidate resources gradually increases.
  • device A can report information including RSRP and receiving priority to device B, so that device B can select resources with less interference as candidate resources when the candidate resources are insufficient, so as to avoid excessive resource exclusion. question.
  • device A reports the processed RSRP and receiving priority information instead of the original RSRP and receiving priority, it is beneficial to reduce the reporting overhead.
  • the RSRP indication information indicates the RSRP and the receiving priority as an example for description, that is, the RSRP indication information can be used as the quantization information of the RSRP and/or the receiving priority, but the present application is not limited to this, and the same method can Indication information used to determine other reported information.
  • the first terminal device sends resource information and RSRP indication information to the second terminal device, and the RSRP indication information quantifies the RSRP and/or the receiving priority.
  • the accuracy of RSRP and/or the receiving priority will not be lost, and the signaling overhead can be reduced; in addition, by using the RSRP indication information, the second terminal device can select the one that suffers less interference when the candidate resources are insufficient. resources as candidate resources, thereby reducing or avoiding the problem of excessive resource exclusion.
  • the description will continue from the first terminal device, and the same content as the embodiment of the first aspect will not be repeated.
  • the first RSRP threshold is not necessarily an initial RSRP threshold; for the embodiment of the second aspect, the first RSRP threshold is an RSRP that satisfies the number of remaining candidate resources greater than or equal to a certain threshold. threshold.
  • the first terminal device determines a conditional reference signal received power (RSRP) threshold that can satisfy a number of candidate resources that is greater than or equal to a resource number threshold; and determines the Th 1 to be equal to the conditional reference signal received power ( RSRP) threshold.
  • RSRP conditional reference signal received power
  • this embodiment of the present application does not limit how device A obtains the candidate resource size of device B.
  • device B needs to send a service, and sends the candidate resource size of the service to be sent to device A, and device B can also send request information at the same time to trigger device A to report auxiliary information.
  • device B can send a time offset o relative to the trigger time t to device A, and the time domain position of the resource reported by device A does not exceed in time time t+o.
  • the initial RSRP threshold is denoted as Th int
  • Th int is the RSRP threshold used for the first resource exclusion.
  • the number of remaining candidate resources is not necessarily greater than or equal to the required threshold. Therefore, device A needs to increase the RSRP threshold and continue to perform resource exclusion until the number of remaining candidate resources is greater than or equal to the threshold.
  • the RSRP threshold used for each resource exclusion is an increase of 3dB on the basis of the RSRP threshold used for the previous resource exclusion
  • the RSRP threshold that satisfies the requirement that the number of remaining candidate resources is greater than or equal to the threshold may be Th int , Th int + 3.
  • the RSRP threshold that satisfies the number of remaining candidate resources is greater than or equal to the threshold is denoted as Th cond
  • device A uses Th cond as the minimum boundary of N RSRP intervals.
  • the auxiliary information includes resources whose RSRP is greater than the RSRP threshold Th cond among the reserved resources.
  • the first terminal device (device A) can report the information including the RSRP and the receiving priority to the second terminal device (device B), so that the second terminal device (device B) can select when the candidate resources are insufficient
  • the resource with less interference is used as the candidate resource, so that the problem of excessive resource exclusion can be avoided.
  • the first terminal device (device A) reports the processed RSRP and receiving priority information instead of the original RSRP and receiving priority, it is beneficial to reduce the reporting overhead.
  • the description will continue from the first terminal device, and the same content as the embodiments of the first and second aspects will not be repeated.
  • the embodiments of the third aspect may be implemented in combination with the embodiments of the first and second aspects, or may be implemented independently.
  • NR V2X supports the pre-emption function.
  • the preemption function When the preemption function is enabled, when the mode 2 device finds that the reserved transmission resources collide with the perceived high-priority service resources (that is, the reserved transmission resources are preempted by the high-priority service), it will Trigger resource reselection to avoid interference to high-priority services.
  • the determination of preemption needs to be based on a comparison of transmit priority, receive priority and/or preemption priority. If the first terminal device (device A) does not report the complete receiving priority (for example, the complete priority is not reported in the embodiments of the first and second aspects), the second terminal device (device B) cannot report the resource Support for preempting sending resources.
  • the auxiliary information further includes preemption indication information corresponding to the second resource, where the preemption indication information indicates whether the second resource can preempt the sending resource reserved by the second terminal device.
  • device A reports preemption indication information, indicating which reporting resources are likely to preempt the sending resources reserved by device B.
  • the auxiliary information also includes the preemption indication information of the resource.
  • the preemption indication information may indicate whether the reported resource can preempt the sending resource reserved by the device B.
  • the information reported by device A includes 3 bits, of which 2 bits are used to indicate RSRP indication information (RSRP and the quantization information of the receiving priority), and 1 bit is used to indicate Can seize.
  • the second terminal device judges whether the perceived reserved resources can preempt the transmission resources reserved by itself.
  • the first terminal device can assist in judging whether the perceived reserved resources can preempt the transmission resources reserved by the second terminal device (device B).
  • the indication information indicates that the second resource can preempt the sending resource.
  • device A is responsible for judging priority
  • device B is responsible for judging RSRP.
  • device A satisfies the following conditions, it indicates that the resource can preempt the resource reserved by device B through the preemption indication information:
  • the receive priority is higher than the send priority
  • the receive priority is higher than the transmit priority, and the receive priority is higher than the preemption priority threshold.
  • the device A indicates that the resource cannot preempt the resource reserved by the device B through the preemption indication information.
  • device A can use 1 bit to implement the above indication, "1" indicates that preemption is possible, and "0" indicates that preemption is not possible.
  • Device B further determines whether to perform resource reselection according to the RSRP indication information. Based on the embodiments of the first and second aspects, the device B can obtain the magnitude relationship between the RSRP and the RSRP threshold. For example, by using the embodiment of the first aspect, the device B can know the size relationship between the RSRP and all the RSRP thresholds starting from the initial RSRP, so it can judge whether the RSRP is greater than a certain RSRP threshold. When the RSRP is greater than the RSRP threshold and the preemption indication information indicates that preemption is possible, device B considers that the reported resource can preempt the transmission resource reserved by itself, thereby triggering resource reselection.
  • Device A only indicates the possibility of preemption, and it is determined by device B whether it is finally determined to be preempted.
  • the device B determines the candidate resource set according to the RSRP indication information.
  • the i-th (1 ⁇ i ⁇ N) RSRP threshold Th i is used to determine the candidate resource set.
  • the candidate resource set does not include resource x reserved by device B.
  • the resource preemption indication information of the resource y indicates that preemption is possible. If the RSRP indication information corresponding to resource y indicates that the RSRP is less than or equal to Th i , then resource y does not trigger resource reselection, that is, device B determines that resource y cannot preempt resource x; otherwise, resource y triggers resource reselection, that is, device B determines the resource y can preempt resource x.
  • resource y in the auxiliary information assuming that resource preemption indication information of resource y indicates that resource y cannot be preempted, resource y does not trigger resource reselection, that is, device B determines that resource y cannot preempt resource x.
  • one piece of preemption indication information may be used to indicate the multiple resources. Therefore, the number of resources is greater than or equal to the number of preemption indication information.
  • the first terminal device (device A) can report the information indicating whether preemption is possible to the second terminal device (device B), so that the second terminal device (device B) can avoid the high priority that it cannot perceive high-priority services are beneficial to ensure the reliability and delay of high-priority services.
  • the following description will continue from the first terminal device, and the same content as the embodiments of the first to third aspects will not be repeated.
  • the embodiments of the third aspect may be implemented in combination with the embodiments of the third aspect, or may be implemented independently.
  • the first terminal device (device A) knows the transmission priority and/or the candidate resource size of the second terminal device (device B); there is no restriction on the RSRP of the reported resources, For example, the RSRP of the reported resource does not have to be greater than a certain threshold; the auxiliary information sent by the first terminal device (device A) may be used for resource selection by more than one device.
  • the N reference signal received power (RSRP) intervals are determined by a plurality of reference signal received power (RSRP) thresholds that may be used in resource exclusion.
  • RSRP reference signal received power
  • the N RSRP intervals are determined by all feasible RSRP thresholds.
  • the SL-ThresPSSCH-RSRP parameter in TS 38.331 configures all available initial RSRP thresholds (RSRP thresholds that have not been relaxed). More specifically, all available initial RSRP thresholds include 67 values: - ⁇ ,-128,-126,...,-2,0,+ ⁇ .
  • FIG. 10 is an example diagram of an available RSRP threshold according to an embodiment of the present application.
  • the unit of the RSRP threshold is dBm.
  • the relaxed RSRP threshold may also be used for resource selection.
  • FIG. 10 shows the union of the initial RSRP threshold and the relaxed RSRP threshold (ie, a feasible RSRP threshold).
  • the RSRP threshold increases by 3dB.
  • the number of RSRP thresholds between 0 and + ⁇ depends on the maximum number of resource exclusions supported.
  • the auxiliary information further includes a receiving priority corresponding to the second resource. That is, different from the embodiments of the first and second aspects, the receiving priority needs to be additionally reported here, for example, the receiving priority needs 3 bits to indicate.
  • FIG. 11 is another example diagram of RSRP indication information according to an embodiment of the present application. For example, assume that 8 bits are used to indicate RSRP, and 3 bits are used to indicate reception priority. Assuming that device A reports RSRP indication information "0000 0010", device B that receives this information can know that -126 ⁇ RSRP ⁇ -125. In addition, device A also reports the receiving priority. Device B regards the RSRP and receiving priority obtained from device A as the RSRP and receiving priority obtained by itself through perception, and can use the existing technology to select resources. What device B really cares about when selecting resources is the size relationship between RSRP and the RSRP threshold. The above-mentioned quantization of RSRP can be distinguished from the size of any RSRP threshold, so there is no loss of accuracy.
  • the first terminal device (device A) can report the information including the RSRP and the receiving priority to the second terminal device (device B), so that the second terminal device (device B) can The resource with less interference is selected as the candidate resource, so that the problem of excessive resource exclusion can be avoided.
  • RSRP and reception priority may be used for resource selection by more than one device that receives this information.
  • An embodiment of the present application provides a method for receiving resource information, which is described from the second terminal device, and the same content as the embodiments of the first to fourth aspects will not be repeated.
  • the second terminal device may perform side link resource selection or reselection, which is called (re-)selection.
  • the resource reselection may be triggered by the result of resource re-evaluation or preemption detection performed by the second terminal device, and "resource selection or reselection" may also be referred to as "resource selection/resource reselection/resource re-evaluation/preemption detection".
  • resource selection/resource reselection/resource re-evaluation/preemption detection For the specific content of resource selection/resource reselection/resource re-evaluation/preemption detection, reference may be made to related technologies, which will not be repeated here.
  • the second terminal device triggers the corresponding resource selection/reselection/re-evaluation/preemption detection process, during the corresponding resource exclusion process, if the second terminal device has obtained the auxiliary information (resource information) reported by the first terminal device set), in addition to its own perception result, the second terminal device also considers the auxiliary information (resource set) reported by the first terminal device.
  • the "RSRP threshold corresponding to the resources of the terminal device” may be referred to as “the RSRP threshold of the terminal device” for short.
  • the RSRP threshold of the terminal device for short.
  • FIG. 12 is a schematic diagram of a method for receiving resource information according to an embodiment of the present application. As shown in FIG. 12 , the method includes:
  • the second terminal device performs sensing
  • the second terminal device receives the auxiliary information sent by the first terminal device;
  • the auxiliary information includes the reserved resources perceived by the first terminal device and corresponding reference signal received power (RSRP) indication information;
  • RSRP reference signal received power
  • the reference signal received power (RSRP) indication information indicates that the reference signal received power (RSRP) S corresponding to the resource is located at the nth reference signal received power (RSRP) in the N reference signal received power (RSRP) intervals.
  • RSRP reference signal received power
  • FIG. 12 only schematically illustrates the embodiment of the present application, but the present application is not limited thereto.
  • the execution order of the various operations can be adjusted appropriately, and other operations can be added or some of the operations can be reduced.
  • Those skilled in the art can make appropriate modifications according to the above content, and are not limited to the description of the above-mentioned FIG. 12 .
  • Th N+1 is positive infinity
  • N is the maximum number of times that the second terminal device performs resource exclusion during resource selection or reselection.
  • the Th n is a reference signal received power (RSRP) threshold used when the second terminal equipment performs the nth resource exclusion.
  • RSRP reference signal received power
  • the second terminal device excludes the resource when performing the m1th resource exclusion, where 1 ⁇ m1 ⁇ n.
  • the second terminal device does not exclude the resource when performing the m2th resource exclusion; wherein, n ⁇ m2 ⁇ N.
  • the second terminal device sends a transmission priority of the data to be sent to the first terminal device, and the transmission priority is used by the first terminal device to determine the received powers of the N reference signals ( RSRP) interval.
  • RSRP N reference signals
  • the auxiliary information further includes preemption indication information corresponding to the resource, where the preemption indication information indicates whether the resource can preempt the sending resource reserved by the second terminal device.
  • the second terminal device when the preemption indication information indicates that the resource can preempt the transmission resource reserved by the second terminal device, the second terminal device indicates according to the reference signal received power (RSRP) Information to determine whether to perform resource reselection.
  • RSRP reference signal received power
  • the N reference signal received power (RSRP) intervals are determined by a plurality of reference signal received power (RSRP) thresholds that may be used in resource exclusion.
  • the auxiliary information further includes a receiving priority corresponding to the resource.
  • the second terminal device uses the reference signal received power (RSRP) indication information and the receive priority for resource selection or reselection.
  • RSRP reference signal received power
  • the first terminal device sends resource information and RSRP indication information to the second terminal device, and the RSRP indication information quantifies the RSRP and/or the receiving priority.
  • the accuracy of RSRP and/or the receiving priority will not be lost, and the signaling overhead can be reduced; in addition, by using the RSRP indication information, the second terminal device can select the one that suffers less interference when the candidate resources are insufficient. resources as candidate resources, thereby reducing or avoiding the problem of excessive resource exclusion.
  • An embodiment of the present application provides an apparatus for sending resource information.
  • the apparatus may be, for example, a terminal device (eg, the aforementioned first terminal device), or may be one or some components or components configured in the terminal device, and the same content as the embodiments of the first to fourth aspects will not be repeated.
  • FIG. 13 is a schematic diagram of an apparatus for sending resource information according to an embodiment of the present application. As shown in FIG. 13 , the apparatus 1300 for sending resource information includes:
  • a determining unit 1302 which determines a second resource that needs to be sent to a second terminal device in the first resource; and determines reference signal received power indication information according to the reference signal received power corresponding to the second resource;
  • the reference signal received power S corresponding to the two resources is located in the nth reference signal received power interval among the N reference signal received power intervals, Th n ⁇ S ⁇ Th n+1 ; 1 ⁇ n ⁇ N, Th 1 ⁇ Th 2 ⁇ ... ⁇ Th N ⁇ Th N+1 .
  • Th N+1 is positive infinity; the N is the maximum number of times that the second terminal device performs resource exclusion during resource selection or reselection.
  • the Th n is a reference signal received power threshold used when the second terminal equipment performs the nth resource exclusion.
  • the apparatus 1300 for sending resource information may further include:
  • the determining unit 1302 further determines an initial reference signal reception power threshold of the second resource according to the transmission priority and the reception priority corresponding to the second resource; and determines the Th 1 to be equal to the initial reference signal reception power threshold.
  • the determining unit 1302 further determines that the conditional reference signal received power threshold that the number of candidate resources is greater than or equal to the resource number threshold can be satisfied; and the Th 1 is determined to be equal to the conditional reference signal received power threshold.
  • the reference signal received power indication information indicates that the reference signal received power corresponding to the second resource is located in the Nth reference signal received power interval;
  • the auxiliary information does not include the second resource and the corresponding reference signal received power indication information.
  • the reference signal received power indication information indicates that the second terminal device excludes the second resource when performing the m1th resource exclusion during resource selection or reselection; wherein 1 ⁇ m1 ⁇ n .
  • the reference signal received power indication information indicates that the second terminal device does not exclude the second resource when performing the m2th resource exclusion during resource selection or reselection; wherein, n ⁇ m2 ⁇ N.
  • the N is predefined, or preconfigured, or configured by a network device, or configured by the second terminal device; the reference signal received power indication information includes: bits.
  • the auxiliary information further includes preemption indication information corresponding to the second resource, where the preemption indication information indicates whether the second resource can preempt the sending resource reserved by the second terminal device.
  • the indication information indicates that the second resource can preempt the sending resource.
  • the N reference signal received power intervals are determined by a plurality of reference signal received power thresholds that can be used in resource exclusion.
  • the auxiliary information further includes a receiving priority corresponding to the second resource.
  • one of the second resources in the auxiliary information corresponds to one piece of the received reference signal power indication information, or a plurality of the second resources correspond to one piece of the received reference signal power indication information.
  • the apparatus 1300 for sending resource information may further include other components or modules, and for the specific contents of these components or modules, reference may be made to the related art.
  • FIG. 13 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc. The implementation of this application does not limit this.
  • the first terminal device sends resource information and RSRP indication information to the second terminal device, and the RSRP indication information quantifies the RSRP and/or the receiving priority.
  • the accuracy of RSRP and/or the receiving priority will not be lost, and the signaling overhead can be reduced; in addition, by using the RSRP indication information, the second terminal device can select the one that suffers less interference when the candidate resources are insufficient. resources as candidate resources, thereby reducing or avoiding the problem of excessive resource exclusion.
  • An embodiment of the present application provides an apparatus for receiving resource information.
  • the apparatus may be, for example, a terminal device (eg, the aforementioned second terminal device), or one or some components or components configured in the terminal device, and the same content as the embodiment of the fifth aspect will not be repeated.
  • FIG. 14 is a schematic diagram of an apparatus for receiving resource information according to an embodiment of the present application.
  • the apparatus 1400 for receiving resource information includes:
  • a receiving unit 1402 which receives auxiliary information sent by a first terminal device; the auxiliary information includes reserved resources perceived by the first terminal device and corresponding reference signal received power indication information; wherein the reference signal receives
  • the power indication information indicates that the reference signal received power S corresponding to the resource is located in the nth reference signal received power interval in the N reference signal received power intervals, Th n ⁇ S ⁇ Th n+1 ; 1 ⁇ n ⁇ N, Th 1 ⁇ Th 2 ⁇ ... ⁇ Th N ⁇ Th N+1 .
  • the apparatus 1400 for receiving resource information may further include:
  • Exclusion unit 1403 which excludes the resource when performing the m1th resource exclusion during resource selection or reselection, where 1 ⁇ m1 ⁇ n, and/or, during resource selection or reselection, when performing the m2th resource
  • the resource is not excluded when excluded, where n ⁇ m2 ⁇ N.
  • the apparatus 1400 for receiving resource information may further include:
  • a sending unit 1404 which sends a sending priority of the data to be sent to the first terminal device, where the sending priority is used by the first terminal device to determine the N reference signal receiving power intervals.
  • the N reference signal received power intervals are determined by a plurality of reference signal received power thresholds that can be used in resource exclusion.
  • the apparatus 1400 for receiving resource information may further include other components or modules.
  • the apparatus 1400 for receiving resource information may further include other components or modules.
  • FIG. 14 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc., which are not limited in the implementation of this application.
  • the first terminal device sends resource information and RSRP indication information to the second terminal device, and the RSRP indication information quantifies the RSRP and/or the receiving priority.
  • the accuracy of RSRP and/or the receiving priority will not be lost, and the signaling overhead can be reduced; in addition, by using the RSRP indication information, the second terminal device can select the one that suffers less interference when the candidate resources are insufficient. resources as candidate resources, thereby reducing or avoiding the problem of excessive resource exclusion.
  • An embodiment of the present application further provides a communication system, and reference may be made to FIG. 1 , and the same contents as those of the embodiments of the first aspect to the seventh aspect will not be repeated.
  • the communication system 100 may include at least:
  • the first terminal device 102 which performs sensing and obtains the reserved first resource and the reference signal reception power and the reception priority corresponding to the first resource; and determines that the first resource needs to be sent to the second terminal device the second resource, and determine the reference signal received power indication information according to the reference signal received power corresponding to the second resource; and
  • a second terminal device 103 which performs sensing; and receives auxiliary information sent by the first terminal device; the auxiliary information includes the second resource and the reference signal received power indication information;
  • the reference signal received power indication information indicates that the reference signal received power S corresponding to the second resource is located in the nth reference signal received power interval in the N reference signal received power intervals, Th n ⁇ S ⁇ Th n+ 1 ; 1 ⁇ n ⁇ N, Th 1 ⁇ Th 2 ⁇ ... ⁇ Th N ⁇ Th N+1 .
  • the embodiment of the present application also provides a network device, which may be, for example, a base station, but the present application is not limited to this, and may also be other network devices.
  • a network device which may be, for example, a base station, but the present application is not limited to this, and may also be other network devices.
  • FIG. 15 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • the network device 1500 may include: a processor 1510 (eg, a central processing unit CPU) and a memory 1520 ; the memory 1520 is coupled to the processor 1510 .
  • the memory 1520 can store various data; in addition, the program 1530 for information processing is also stored, and the program 1530 is executed under the control of the processor 1510 .
  • the network device 1500 may further include: a transceiver 1540, an antenna 1550, etc.; wherein, the functions of the above components are similar to those in the prior art, and are not repeated here. It is worth noting that the network device 1500 does not necessarily include all the components shown in FIG. 15 ; in addition, the network device 1500 may also include components not shown in FIG. 15 , and reference may be made to the prior art.
  • the embodiment of the present application also provides a terminal device, but the present application is not limited to this, and may also be other devices.
  • FIG. 16 is a schematic diagram of a terminal device according to an embodiment of the present application.
  • the terminal device 1600 may include a processor 1610 and a memory 1620 ; the memory 1620 stores data and programs, and is coupled to the processor 1610 .
  • this figure is exemplary; other types of structures may be used in addition to or in place of this structure to implement telecommunication functions or other functions.
  • the processor 1610 may be configured to execute a program to implement the method for sending resource information according to the embodiments of the first to fourth aspects.
  • the processor 1610 may be configured to perform the following control: perform sensing, obtain the reserved first resource and the reference signal received power (RSRP) and reception priority corresponding to the first resource; Determine the second resource that needs to be sent to the second terminal device in the middle, and determine the reference signal received power (RSRP) indication information according to the reference signal received power (RSRP) corresponding to the second resource; and send to the second terminal device.
  • RSRP reference signal received power
  • the auxiliary information includes the second resource and the reference signal received power (RSRP) indication information; wherein the reference signal received power (RSRP) indication information indicates that the reference signal corresponding to the second resource is received
  • the power (RSRP) S is located in the nth reference signal received power (RSRP) interval in the N reference signal received power (RSRP) intervals, Th n ⁇ S ⁇ Th n+1 ; 1 ⁇ n ⁇ N, Th 1 ⁇ Th 2 ⁇ ... ⁇ Th N ⁇ Th N+1 .
  • the processor 1610 may be configured to execute a program to implement the method for receiving resource information according to the embodiment of the fifth aspect.
  • the processor 1610 may be configured to perform the following controls: perform sensing; and receive auxiliary information sent by a first terminal device; the auxiliary information includes reserved resources and corresponding reference signals sensed by the first terminal device Received power indication information; wherein, the reference signal received power indication information indicates that the reference signal received power S corresponding to the resource is located in the nth reference signal received power interval in the N reference signal received power intervals, Th n ⁇ S ⁇ Th n+1 ; 1 ⁇ n ⁇ N, Th 1 ⁇ Th 2 ⁇ ... ⁇ Th N ⁇ Th N+1 .
  • the terminal device 1600 may further include: a communication module 1630 , an input unit 1640 , a display 1650 , and a power supply 1660 .
  • the functions of the above components are similar to those in the prior art, and details are not repeated here. It is worth noting that the terminal device 1600 does not necessarily include all the components shown in FIG. 16 , and the above components are not required; in addition, the terminal device 1600 may also include components not shown in FIG. 16 . There is technology.
  • An embodiment of the present application further provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the method for sending resource information according to the embodiments of the first to fourth aspects.
  • Embodiments of the present application further provide a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the method for sending resource information described in the embodiments of the first to fourth aspects.
  • the embodiment of the present application further provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the method for receiving resource information according to the embodiment of the fifth aspect.
  • the embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program causes a terminal device to execute the method for receiving resource information according to the embodiment of the fifth aspect.
  • the apparatuses and methods above in the present application may be implemented by hardware, or may be implemented by hardware combined with software.
  • the present application relates to a computer-readable program that, when executed by logic components, enables the logic components to implement the above-described apparatus or constituent components, or causes the logic components to implement the above-described various methods or steps.
  • the present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, and the like.
  • the method/apparatus described in conjunction with the embodiments of this application may be directly embodied as hardware, a software module executed by a processor, or a combination of the two.
  • one or more of the functional block diagrams shown in the figures and/or one or more combinations of the functional block diagrams may correspond to either software modules or hardware modules of the computer program flow.
  • These software modules may respectively correspond to the various steps shown in the figure.
  • These hardware modules can be implemented by, for example, solidifying these software modules using a Field Programmable Gate Array (FPGA).
  • FPGA Field Programmable Gate Array
  • a software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.
  • a storage medium can be coupled to the processor, such that the processor can read information from, and write information to, the storage medium; or the storage medium can be an integral part of the processor.
  • the processor and storage medium may reside in an ASIC.
  • the software module can be stored in the memory of the mobile terminal, or can be stored in a memory card that can be inserted into the mobile terminal.
  • the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.
  • the functional blocks and/or one or more combinations of the functional blocks described in the figures can be implemented as a general-purpose processor, a digital signal processor (DSP) for performing the functions described in this application ), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof.
  • DSP digital signal processor
  • ASICs Application Specific Integrated Circuits
  • FPGAs Field Programmable Gate Arrays
  • One or more of the functional blocks and/or one or more combinations of the functional blocks described with respect to the figures can also be implemented as a combination of computing devices, eg, a combination of a DSP and a microprocessor, multiple microprocessors processor, one or more microprocessors in communication with the DSP, or any other such configuration.
  • a method for sending resource information comprising:
  • the first terminal device performs sensing, and obtains the reserved first resource and a reference signal received power (RSRP) and a receiving priority corresponding to the first resource;
  • RSRP reference signal received power
  • RSRP reference signal received power
  • the first terminal device sends auxiliary information to the second terminal device;
  • the auxiliary information includes the second resource and the reference signal received power (RSRP) indication information;
  • the reference signal received power (RSRP) ) indication information indicates that the reference signal received power (RSRP) S corresponding to the second resource is located in the nth reference signal received power (RSRP) interval in the N reference signal received power (RSRP) intervals, Th n ⁇ S ⁇ Th n+1 ; 1 ⁇ n ⁇ N, Th 1 ⁇ Th 2 ⁇ ... ⁇ Th N ⁇ Th N+1 .
  • Th n is a reference signal received power (RSRP) threshold used when the second terminal device performs the nth resource exclusion.
  • RSRP reference signal received power
  • Supplement 4 The method according to any one of Supplementary Notes 1 to 3, wherein the method further comprises:
  • RSRP initial reference signal received power
  • the Th 1 is determined to be equal to the initial reference signal received power (RSRP) threshold.
  • RSRP initial reference signal received power
  • the first terminal device determines that the conditional reference signal received power (RSRP) threshold that the number of candidate resources is greater than or equal to the resource number threshold can be satisfied; and
  • RSRP conditional reference signal received power
  • the Th 1 is determined to be equal to the conditional reference signal received power (RSRP) threshold.
  • RSRP conditional reference signal received power
  • Supplement 7 The method according to any one of Supplements 1 to 6, wherein, in the case that Th 1 is negative infinity, the reference signal received power (RSRP) indication information indicates that the second resource corresponds to The reference signal received power (RSRP) is located in the Nth reference signal received power (RSRP) interval;
  • the auxiliary information does not include the second resource and corresponding reference signal received power (RSRP) indication information.
  • RSRP reference signal received power
  • Supplement 8 The method according to any one of Supplements 1 to 7, wherein the reference signal received power (RSRP) indication information indicates that the second terminal device is performing the m1th time in resource selection or reselection.
  • RSRP reference signal received power
  • Supplement 9 The method according to any one of Supplements 1 to 7, wherein the reference signal received power (RSRP) indication information indicates that the second terminal device is performing the m2th time in resource selection or reselection.
  • the second resource is not excluded when the resource is excluded; wherein, n ⁇ m2 ⁇ N.
  • Supplement 10 The method according to any one of Supplements 1 to 9, wherein the N is predefined, or preconfigured, or configured by a network device, or configured by the second terminal device; the Reference Signal Received Power (RSRP) indication information includes bits.
  • RSRP Reference Signal Received Power
  • Supplement 11 The method according to any one of Supplementary Notes 1 to 10, wherein the auxiliary information further includes preemption indication information corresponding to the second resource, and the preemption indication information indicates that the second resource is capable of No to preempt the sending resource reserved by the second terminal device.
  • Supplement 12 The method according to Supplement 11, wherein in the case that the receiving priority corresponding to the second resource is higher than the transmitting priority corresponding to the transmitting resource, or when the receiving priority corresponding to the second resource is higher than the transmitting priority corresponding to the transmitting resource.
  • the indication information indicates that the second resource can preempt the sending resource.
  • Supplement 13 The method according to Supplement 1, wherein the N reference signal received power (RSRP) intervals are determined by a plurality of reference signal received power (RSRP) thresholds that can be used when performing resource exclusion.
  • RSRP reference signal received power
  • Supplement 14 The method according to Supplement 13, wherein the auxiliary information further includes a receiving priority corresponding to the second resource.
  • Supplement 15 The method according to any one of Supplementary Notes 1 to 14, wherein one of the second resources in the auxiliary information corresponds to one of the Reference Signal Received Power (RSRP) indication information, or a plurality of all The second resource corresponds to one of the reference signal received power (RSRP) indication information.
  • RSRP Reference Signal Received Power
  • a method for receiving resource information comprising:
  • the second terminal device senses
  • the auxiliary information includes reserved resources perceived by the first terminal device and corresponding reference signal received power (RSRP) indication information;
  • RSRP reference signal received power
  • the reference signal received power (RSRP) indication information indicates that the reference signal received power (RSRP) S corresponding to the resource is located at the nth reference signal received power (RSRP) in the N reference signal received power (RSRP) intervals.
  • RSRP reference signal received power
  • Th n is a reference signal received power (RSRP) threshold used when the second terminal device performs the nth resource exclusion.
  • RSRP reference signal received power
  • Supplementary Note 19 The method according to any one of Supplementary Notes 16 to 18, wherein the method further comprises:
  • the second terminal device excludes the resource when performing the m1th resource exclusion during resource selection or reselection, where 1 ⁇ m1 ⁇ n.
  • Supplementary Note 20 The method according to any one of Supplementary Notes 16 to 18, wherein the method further comprises:
  • the second terminal device does not exclude the resource when performing the m2th resource exclusion; wherein, n ⁇ m2 ⁇ N.
  • Supplement 21 The method according to any one of Supplementary Notes 16 to 20, wherein the method further comprises:
  • the second terminal device sends a transmission priority of the data to be sent to the first terminal device, where the transmission priority is used by the first terminal device to determine the N reference signal received power (RSRP) intervals.
  • RSRP reference signal received power
  • Supplement 22 The method according to any one of Supplements 16 to 21, wherein the auxiliary information further includes preemption indication information corresponding to the resource, and the preemption indication information indicates whether the resource can preempt the resource.
  • the second terminal device determines whether to perform resource reconfiguration according to the reference signal received power (RSRP) indication information select.
  • RSRP reference signal received power
  • Supplement 24 The method according to any one of Supplements 16 to 20, wherein the N reference signal received power (RSRP) intervals consist of a plurality of reference signal received powers (RSRP) that can be used when performing resource exclusion Threshold is determined.
  • RSRP reference signal received power
  • Supplement 25 The method according to Supplement 24, wherein the auxiliary information further includes a receiving priority corresponding to the resource.
  • Supplement 26 The method according to Supplement 25, wherein the method further comprises:
  • the second terminal equipment performs resource selection or reselection using the reference signal received power (RSRP) indication information and the reception priority.
  • RSRP reference signal received power
  • Supplement 27 A terminal device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to realize the resource according to any one of Supplements 1 to 15 A method for sending information, or implementing a method for receiving resource information as described in any one of Supplementary Notes 16 to 26.

Landscapes

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

Abstract

L'invention concerne un procédé et un appareil d'envoi d'informations de ressources, ainsi qu'un procédé et un appareil de réception d'informations de ressources. Le procédé d'envoi d'informations de ressources comprend les étapes selon lesquelles un premier dispositif terminal : effectue une détection pour obtenir une première ressource réservée, une puissance reçue de signal de référence (RSRP) correspondant à cette première ressource, et une priorité de réception ; détermine, à partir de la première ressource, une seconde ressource qui doit être envoyée à un second dispositif terminal, et détermine des informations d'indication de puissance reçue de signal de référence (RSRP) conformément à une puissance reçue de signal de référence (RSRP) correspondant à la seconde ressource ; et envoie des informations auxiliaires au second dispositif terminal, ces informations auxiliaires comprenant la seconde ressource et les informations d'Indication de puissance reçue de signal de référence (RSRP).
PCT/CN2020/122990 2020-10-22 2020-10-22 Procédé et appareil d'envoi d'informations de ressources, et procédé et appareil de réception d'informations de ressources WO2022082664A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/122990 WO2022082664A1 (fr) 2020-10-22 2020-10-22 Procédé et appareil d'envoi d'informations de ressources, et procédé et appareil de réception d'informations de ressources

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/122990 WO2022082664A1 (fr) 2020-10-22 2020-10-22 Procédé et appareil d'envoi d'informations de ressources, et procédé et appareil de réception d'informations de ressources

Publications (1)

Publication Number Publication Date
WO2022082664A1 true WO2022082664A1 (fr) 2022-04-28

Family

ID=81291137

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/122990 WO2022082664A1 (fr) 2020-10-22 2020-10-22 Procédé et appareil d'envoi d'informations de ressources, et procédé et appareil de réception d'informations de ressources

Country Status (1)

Country Link
WO (1) WO2022082664A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109644436A (zh) * 2018-03-20 2019-04-16 Oppo广东移动通信有限公司 资源共享的方法和终端设备
US20190356451A1 (en) * 2017-01-20 2019-11-21 Samsung Electronics Co., Ltd. A method and device for vehicle to everything (v2x) communications and a transmitting and receiving method and equipment in v2x communication
CN111263410A (zh) * 2018-12-28 2020-06-09 维沃移动通信有限公司 一种资源预留方法及设备
CN111417207A (zh) * 2019-01-07 2020-07-14 中国移动通信有限公司研究院 一种资源配置方法及装置、设备、存储介质

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190356451A1 (en) * 2017-01-20 2019-11-21 Samsung Electronics Co., Ltd. A method and device for vehicle to everything (v2x) communications and a transmitting and receiving method and equipment in v2x communication
CN109644436A (zh) * 2018-03-20 2019-04-16 Oppo广东移动通信有限公司 资源共享的方法和终端设备
CN111263410A (zh) * 2018-12-28 2020-06-09 维沃移动通信有限公司 一种资源预留方法及设备
CN111417207A (zh) * 2019-01-07 2020-07-14 中国移动通信有限公司研究院 一种资源配置方法及装置、设备、存储介质

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
APPLE: "On Mode 2 Resource Allocation for NR Sidelink", 3GPP DRAFT; R1-1910962 ON MODE 2 RESOURCE ALLOCATION FOR NR SIDELINK, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Chongqing, China; 20191014 - 20191020, 5 October 2019 (2019-10-05), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051789742 *

Similar Documents

Publication Publication Date Title
WO2018202181A1 (fr) Procédé de traitement d'informations d'état de canal et appareil associé
US11063710B2 (en) Data transmission method and terminal device
US11832236B2 (en) Resource configuration method, resource determination method, apparatuses thereof and communication system
US11510159B2 (en) Signal transmission method, network device, and terminal device
US11729784B2 (en) Apparatus and system for obtaining resources using a coefficient
US11071135B2 (en) Uplink transmission method based on uplink reference signal, terminal, and network device
US20220124729A1 (en) Sidelink resource selection method and apparatus
US20200313991A1 (en) Service receiving or transmitting method and device, and communication system
WO2022077384A1 (fr) Procédé et appareil de sélection de ressources
WO2022151299A1 (fr) Procédé et appareil de rapport d'informations d'indication, et procédé et appareil de réception d'informations d'indication
EP3833076A1 (fr) Procédés et appareils de transmission et de réception d'informations
JP2021533603A (ja) コンテンションウィンドウの調整方法、装置及び通信システム
WO2021031042A1 (fr) Procédés et appareils pour envoyer et recevoir des signaux
CN114424666A (zh) 一种通信方法及装置
EP3751932A1 (fr) Procédé, équipement terminal et équipement de réseau permettant de transmettre des informations de façon répétée
US20240015702A1 (en) Method for reselecting sidelink resource and apparatus for the same
WO2020164075A1 (fr) Procédé de communication sans fil, dispositif de terminal et dispositif de réseau
WO2022082664A1 (fr) Procédé et appareil d'envoi d'informations de ressources, et procédé et appareil de réception d'informations de ressources
WO2022082670A1 (fr) Procédé et appareil de sélection de ressource de liaison latérale
US20210258961A1 (en) Data transmission method and device
US11381991B2 (en) Measuring method, network device, and terminal device
WO2022082672A1 (fr) Procédé et appareil de sélection de ressources
WO2022027426A1 (fr) Procédé et appareil de rapport de ressources ainsi que procédé et appareil de sélection de ressources
WO2022027510A1 (fr) Procédé et appareil d'indication de ressources ainsi que procédé et appareil de sélection de ressources
WO2022077376A1 (fr) Procédé et appareil de sélection de ressources, et procédé et appareil d'indication de ressources

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: 20958246

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: 20958246

Country of ref document: EP

Kind code of ref document: A1