WO2021027372A1 - Procédé de rétroaction, terminal et support d'enregistrement informatique - Google Patents

Procédé de rétroaction, terminal et support d'enregistrement informatique Download PDF

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Publication number
WO2021027372A1
WO2021027372A1 PCT/CN2020/093811 CN2020093811W WO2021027372A1 WO 2021027372 A1 WO2021027372 A1 WO 2021027372A1 CN 2020093811 W CN2020093811 W CN 2020093811W WO 2021027372 A1 WO2021027372 A1 WO 2021027372A1
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WIPO (PCT)
Prior art keywords
terminal
area
location
information
distance
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PCT/CN2020/093811
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English (en)
Chinese (zh)
Inventor
翟海涛
赵亚利
王达
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大唐移动通信设备有限公司
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Publication of WO2021027372A1 publication Critical patent/WO2021027372A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/14—Receivers specially adapted for specific applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]

Definitions

  • This application relates to the field of wireless communication technology, and in particular to a method, terminal and computer storage medium for feedback.
  • Vehicle-to-Everything (Vechile-to-Everything, V2X) communication is a type of direct communication.
  • LTE Long Term Evolution
  • UE User Equipment
  • the communication path of its V2X services is determined by the upper layer (the protocol layer above the access network), and the upper layer will only send to the lower layer.
  • the only communication path that is, only the direct communication link is selected as the communication path or only the Uu link is selected as the communication path at the same time.
  • V2X services support multicast and broadcast services.
  • a multicast service after the sending UE sends data, all other UEs in the same group can receive the data, and all other UEs will send a feedback message to the sending UE after receiving the data.
  • QoS quality of service
  • the quality of service (QoS) requirements of the service have a requirement for the maximum communication distance.
  • the current Some feedback methods are no longer applicable.
  • This application relates to the field of wireless communication technology, and in particular to a method, terminal and computer storage medium for feedback. It is used to solve the problem that there is no feedback scheme for the service data blocks that have the maximum communication distance requirement sent by the sending end UE.
  • an embodiment of the present application provides a feedback method, which includes:
  • the first terminal After receiving the service data block sent by the second terminal, the first terminal determines the first terminal and the second terminal according to the first location information of the first terminal and the second location information of the second terminal. The distance between terminals;
  • the first terminal sends to the second terminal a feedback indicating that the service data block is received news.
  • the method further includes:
  • the first terminal receives the second location information sent by the second terminal.
  • the first location information is an area identification (Identity Document, ID) of the location where the first terminal is located
  • the second location information is an area ID of the location where the second terminal is located
  • the method further includes:
  • the first terminal determines the location of the first terminal according to the area configuration information used to indicate the state of the area division within the coverage area of the base station and the global positioning system (Global Positioning Systems, GPS) coordinate information of the location of the first terminal The area ID; where the area configuration information is sent by the base station or pre-configured.
  • the area configuration information used to indicate the state of the area division within the coverage area of the base station and the global positioning system (Global Positioning Systems, GPS) coordinate information of the location of the first terminal The area ID; where the area configuration information is sent by the base station or pre-configured.
  • the area configuration information includes some or all of the following information:
  • the first terminal receives at least two types of area configuration information sent by the base station or pre-configures at least two types of area configuration information for the first terminal; each type of area configuration information includes the longitude of each area The length in the direction and the width of each area in the latitude direction;
  • the first terminal determining the area ID of the location of the first terminal according to the area configuration information and the GPS coordinate information of the location of the first terminal includes:
  • the first terminal selects, from at least two types of area configuration information, the area configuration information that has the smallest length of each area in the longitude direction or the smallest width of each area in the latitude direction;
  • the first terminal determines the area ID of the location where the first terminal is located according to the selected area configuration information and the GPS coordinate information of the location where the first terminal is located.
  • the area ID includes a first area index in a longitude direction and a second area index in a latitude direction;
  • the first terminal determines the area ID of the location in the following manner:
  • the first terminal determines the first area index according to the longitude coordinate value in the GPS coordinate information, the length of each area in the longitude direction, and the number of areas in the longitude direction;
  • the first terminal determines the second area index according to the latitude coordinate value in the GPS coordinate information, the width of each area in the latitude direction, and the number of areas in the latitude direction.
  • the determining, by the first terminal, the distance between the first terminal and the second terminal includes:
  • the first terminal according to the first area index in the area ID of the location where the first terminal is located, the first area index in the area ID of the location where the second terminal is located, and the longitudinal direction of each area The length of, determines the distance between the first terminal and the second terminal in the longitude direction;
  • the first terminal according to the second area index in the area ID of the location where the first terminal is located, the second area index in the area ID of the location where the second terminal is located, and the latitude direction of each area The length of, determines the distance between the first terminal and the second terminal in the latitude direction;
  • the first terminal determines the distance between the first terminal and the second terminal in the longitude direction and the distance between the first terminal and the second terminal in the latitude direction. The distance between the second terminals.
  • the sending, by the first terminal, to the second terminal a feedback message indicating that the service data block has been received includes:
  • the first terminal sends a feedback containing measurement information to the second terminal Message to enable the second terminal to adjust transmission parameters according to the measurement information.
  • an embodiment of the present application provides a feedback method, which includes:
  • the second terminal sends a service data block to the first terminal
  • the second terminal receives a feedback message sent by the first terminal indicating that the service data block is received; wherein, the feedback message is the first terminal according to the first location information of the first terminal and the The second location information of the second terminal is sent after it is determined that the distance between the second terminal and the second terminal is not greater than the communication distance corresponding to the service data block.
  • the method further includes:
  • the second terminal sends the second location information to the first terminal, so that the first terminal determines the first terminal based on the second location information and the first location information of the first terminal The distance from the second terminal.
  • the first location information is the area ID of the location where the first terminal is located
  • the second location information is the area ID of the location where the second terminal is located
  • the method further includes:
  • the second terminal determines the area ID of the location of the second terminal according to the area configuration information used to indicate the area division status of the coverage area of the base station and the GPS coordinate information of the location of the second terminal; wherein, the area The configuration information is sent by the base station or pre-configured.
  • the area configuration information includes some or all of the following information:
  • the second terminal receives at least two types of area configuration information sent by the base station or pre-configures at least two types of area configuration information for the second terminal; each type of area configuration information includes the longitude of each area The length in the direction and the width of each area in the latitude direction;
  • the second terminal determining the area ID of the location of the second terminal according to the area configuration information and the GPS coordinate information of the location of the second terminal includes:
  • the second terminal selects, from at least two types of area configuration information, the area configuration information with the smallest length of each area in the longitude direction or the smallest width of each area in the latitude direction;
  • the second terminal determines the area ID of the location of the second terminal according to the selected area configuration information and the GPS coordinate information of the location of the second terminal.
  • the area ID includes a first area index in a longitude direction and a second area index in a latitude direction;
  • the second terminal determines the area ID of the location in the following manner:
  • the second terminal determines the first area index according to the longitude coordinate value in the GPS coordinate information, the length of each area in the longitude direction, and the number of areas in the longitude direction;
  • the second terminal determines the second area index according to the latitude coordinate value in the GPS coordinate information, the width of each area in the latitude direction, and the number of areas in the latitude direction.
  • the receiving, by the second terminal, the feedback message sent by the first terminal indicating that the service data block has been received includes:
  • the second terminal receives the feedback message containing measurement information sent by the first terminal, and adjusts transmission parameters according to the measurement information; wherein, the feedback message containing the measurement information is determined by the first terminal. After the distance between the second terminals is greater than the first threshold and not greater than the communication distance corresponding to the service data block.
  • an embodiment of the present application provides a first terminal for feedback, including a processor, a memory, and a transceiver;
  • the processor is used to read and execute the program in the memory:
  • the distance between the first terminal and the second terminal is not greater than the communication distance corresponding to the service data block, sending a feedback message indicating that the service data block is received to the second terminal.
  • an embodiment of the present application provides a second terminal for feedback, including a processor, a memory, and a transceiver;
  • the processor is used to read and execute the program in the memory:
  • the location information and the second location information of the second terminal are sent after determining that the distance to the second terminal is not greater than the communication distance corresponding to the service data block.
  • an embodiment of the present application provides a first terminal, including:
  • the determining module is configured to determine the relationship between the first terminal and the second terminal according to the first location information of the first terminal and the second location information of the second terminal after receiving the service data block sent by the second terminal. The distance between the second terminals;
  • the first sending module is configured to send to the second terminal that the service data block is received if the distance between the first terminal and the second terminal is not greater than the communication distance corresponding to the service data block Feedback message.
  • an embodiment of the present application provides a second terminal, including:
  • the second sending module is used to send service data blocks to the first terminal
  • the receiving module is configured to receive a feedback message sent by the first terminal indicating that the service data block is received; wherein the feedback message is the first terminal according to the first location information of the first terminal and the The second location information of the second terminal is sent after it is determined that the distance between the second terminal and the second terminal is not greater than the communication distance corresponding to the service data block.
  • an embodiment of the present application provides a computer storable medium on which a computer program is stored, and when the program is executed by a processor, it implements the steps of the method described in the first aspect, or implements the method described in the second aspect. A step of.
  • the first terminal after receiving the service data block sent by the second terminal, can determine the first terminal according to the first location information of the first terminal and the second location information of the second terminal The distance from the second terminal.
  • the first terminal sends a feedback message to the second terminal after receiving the service data block. Since the first terminal needs to determine whether to send a feedback message to the second terminal according to the distance between itself and the second terminal after receiving the service data block, only if the distance between the first terminal and the second terminal is not greater than the corresponding service data block The feedback message is sent to the second terminal only when the communication distance is higher than the communication distance.
  • the first terminal When the distance between the first terminal and the second terminal is greater than the communication distance corresponding to the service data block, the first terminal no longer sends feedback messages, thus avoiding the The feedback message sent by the first terminal that needs to send the feedback message causes interference to the system, and at the same time avoids occupying communication resources due to feedback of unnecessary information.
  • FIG. 1 is a schematic diagram of a system architecture according to an embodiment of the application
  • FIG. 2 is a schematic diagram of a feedback system according to an embodiment of the application.
  • FIG. 3 is a schematic diagram of area configuration information broadcast by a base station according to an embodiment of this application.
  • Fig. 4 is a complete flow chart of the first method of feedback according to an embodiment of the application.
  • FIG. 5 is a schematic diagram of the first feedback method according to an embodiment of the application.
  • Figure 6 is a complete flow chart of the second type of feedback according to the embodiment of the application.
  • FIG. 7 is a schematic diagram of a second feedback method according to an embodiment of the application.
  • FIG. 8 is a schematic diagram of a first terminal for feedback according to an embodiment of this application.
  • FIG. 9 is a schematic diagram of a second terminal for feedback according to an embodiment of this application.
  • FIG. 10 is a schematic diagram of a first terminal according to an embodiment of this application.
  • FIG. 11 is a schematic diagram of a second terminal according to an embodiment of the application.
  • FIG. 12 is a flowchart of a method for a first terminal to perform feedback according to an embodiment of this application.
  • FIG. 13 is a flowchart of a method for a second terminal to perform feedback according to an embodiment of this application.
  • V2X business, vehicle and everything (Vechile-to-Everything, V2X) communication is a kind of direct communication, which is currently a hot topic in the communication field.
  • V2X communication mainly includes three aspects: vehicle-to-vehicle (Vechile-to-Vechile, V2V): communication between on-board units (On Broad Unit, OBU) on the vehicle; vehicle-to-network (Vechile-to-Infrastructure, V2I) : The communication between the vehicle and the road side unit (Road Side Unit, RSU); the vehicle-to-pedestrian (Vechile-to-Pedestrian, V2P): the communication between the vehicle and the pedestrian.
  • GPS Global Positioning System
  • Global users provide low-cost, high-precision navigation information such as three-dimensional position, speed and precise timing.
  • Hybrid Automatic Repeat Request (HARQ) is a combination of forward error correction coding (Forward Error Correction, FEC) and automatic repeat request (Automatic Repeat Request, ARQ). technology.
  • FEC Forward Error Correction
  • ARQ Automatic Repeat Request
  • the acknowledgment character (Ackonwledge Character, ACK) information indicates that the received character has no error.
  • the receiving station checks the received message, and if no error is found, it sends an acknowledgement ACK to the sending station, indicating that the information has been received correctly and is ready to receive the next message.
  • the control character can be sent by the central node or by the remote node.
  • Negative Acknowledge (NACK) information the receiving station checks the received message, and if an error is found, it sends a negative response NACK to the sending station, indicating that the message is wrong and requires retransmission.
  • NACK Negative Acknowledge
  • FIG. 1 exemplarily shows a schematic diagram of a system architecture applicable to an embodiment of the present application.
  • the terminal 101 and the terminal 102 can be connected to the core network device via the access network entity 103 104 communicates, and a terminal may refer to a UE, an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device.
  • the access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminals in the future 5G network, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the access network entity can also be referred to as a radio access network ((Radio) Access Network, (R) AN) entity, which is collectively referred to as access network entity or (R) below.
  • the AN entity is mainly responsible for providing wireless connections for the terminal 101 and the terminal 102, ensuring reliable transmission of uplink and downlink data between the terminal 101 and the terminal 102, and so on.
  • the access network entity 103 can be the next generation Node B (gNB) in the 5G system, and can be the Global System of Mobile Communication (GSM) system or Code Division Multiple Access (CDMA)
  • the base station (Base Transceiver Station, BTS) in WCDMA system can also be the base station (NodeB, NB) in the Wideband Code Division Multiple Access (WCDMA) system, or it can be Long Term Evolution (LTE)
  • the evolved base station (Evolutional Node B, eNB or eNodeB) in the system, etc., optionally, the access network entity in the embodiment of the present application is a satellite base station.
  • the core network device 104 is responsible for connecting the terminal device to different networks according to the call request or data request sent by the terminal device through the access network, as well as charging, mobility management, and the like.
  • the core network equipment may be a 4G core network Evolved Packet Core (EPC) or a 5G core network equipment.
  • EPC Evolved Packet Core
  • the link through which the terminal 101 and the terminal 102 communicate with the core network device 104 via the access network entity 103 is a cellular communication link between the network and the terminal, which can also be called a Uu link, and the terminal 101 and the terminal 102 communicate with each other.
  • the communication link is the direct communication link between the device and the device, which can also be called a side link.
  • system architecture is only an example of the system architecture applicable to the embodiment of the present application. Compared with the system architecture shown in FIG. 1, the system architecture applicable to the embodiment of the present application can add other entities or reduce some entities.
  • the embodiments of this application are applied to scenarios where V2X multicast services under 5G NR use direct communication links for communication.
  • V2X multicast services under 5G NR use direct communication links for communication.
  • the sending end UE after the sending end UE sends data, other UEs in the same group can receive the Data, and other UEs will send feedback messages to the sending end UE after receiving the data.
  • the QoS requirements of the service include the maximum communication distance requirement, and for the service data blocks sent by the sending UE that have the maximum communication distance requirement, the receiving UE that is greater than the maximum communication distance Whether or not the service data block is received is not important to the service.
  • Sending a feedback message to the sending end UE will increase the interference to the system and cause a waste of resources.
  • an embodiment of the present application provides a feedback system. As shown in FIG. 2, the system includes at least one first terminal 10 and a second terminal 20.
  • the first terminal 10 is configured to, after receiving the service data block sent by the second terminal, determine whether the first terminal is connected to the first terminal according to the first location information of the first terminal and the second location information of the second terminal The distance between the second terminal; if the distance between the first terminal and the second terminal is not greater than the communication distance corresponding to the service data block, the first terminal sends to the second terminal Indicates that the feedback message of the service data block is received.
  • the second terminal 20 is configured to send a service data block to the first terminal, and receive a feedback message sent by the first terminal indicating that the service data block has been received; wherein, the feedback message is the first terminal according to the The first location information of the first terminal and the second location information of the second terminal are sent after determining that the distance to the second terminal is not greater than the communication distance corresponding to the service data block.
  • the first terminal after receiving the service data block sent by the second terminal, can determine the first terminal according to the first location information of the first terminal and the second location information of the second terminal The distance from the second terminal.
  • the first terminal sends a feedback message to the second terminal after receiving the service data block. Since the first terminal needs to determine whether to send a feedback message to the second terminal after receiving the service data block according to the distance between itself and the second terminal, only when the distance between the first terminal and the second terminal is not greater than the corresponding service data block The feedback message is sent to the second terminal only when the communication distance is higher than the communication distance.
  • the first terminal When the distance between the first terminal and the second terminal is greater than the communication distance corresponding to the service data block, the first terminal no longer sends feedback messages, thus avoiding the The feedback message sent by the first terminal that needs to send the feedback message causes interference to the system, and at the same time avoids occupying communication resources due to feedback of unnecessary information.
  • the feedback message sent by the first terminal to the second terminal indicating that the service data block is received includes but is not limited to:
  • Hybrid automatic repeat request Hybrid Automatic Repeat Request, HARQ
  • automatic repeat request ARQ
  • acknowledgment character Ackonwledge Character, ACK
  • negative character NACK
  • the service data block may be the service data block of each protocol layer, such as the transport block (TB) of the physical layer, or the medium access control (MAC) layer/radio link control (Radio Link Control). , RLC) layer/Packet Data Convergence Protocol (PDCP) layer/Service Data Adaptation Protocol (Service Data Adaptation Protocol, SDAP) layer business data blocks.
  • TB transport block
  • MAC medium access control
  • RLC layer/Packet Data Convergence Protocol
  • SDAP Service Data Adaptation Protocol
  • V2X services can use two communication paths: direct communication link or Uu link.
  • the upper layer selects the direct communication link, the resources of the V2X service are selected based on the area.
  • the base station broadcasts area configuration information and resource pools available to UEs in each area; the area configuration information includes the length of each area, the width of each area, the number of areas in the longitude direction, and the number of areas in the latitude direction.
  • the area configuration information broadcast by the base station may be as shown in Figure 3.
  • the area configuration information broadcast by the base station includes three areas in the longitude direction and two areas in the latitude direction.
  • each area is L
  • each The width of the zone is W
  • Zone0 indicates the zone with zone ID
  • Zone1 indicates the zone with zone ID 1
  • Zone2 indicates the zone with zone ID 2
  • Zone3 indicates the zone with zone ID 3
  • Zone4 indicates the zone ID is 4.
  • Zone, Zone5 indicates the zone with zone ID 5.
  • the UE After receiving the broadcast information of the base station, the UE can calculate the area ID to which it belongs according to its own GPS coordinates, and use the resource pool corresponding to the area ID indicated in the broadcast information of the base station.
  • the second terminal sends a service data block to at least one first terminal, and the at least one first terminal determines whether it needs to send a feedback message to the second terminal after receiving the service data block;
  • any first terminal determine the distance between itself and the second terminal according to the first location information of the first terminal and the second location information of the second terminal;
  • an optional implementation manner is that the second location information of the second terminal is sent by the second terminal when sending the service data block to the first terminal;
  • the second location information of the second terminal may be carried in the control information corresponding to the service data block.
  • the first location information is the area ID of the location where the first terminal is located
  • the second location information is the area ID of the location where the second terminal is located.
  • the first terminal determines the first location information, it is determined based on the area configuration information and the GPS coordinates of its own location; and when the second terminal determines the second location information, it is determined based on the area configuration information and its location. GPS coordinates are determined.
  • the area configuration information used by the first terminal and the second terminal when determining the location information may be sent by the base station or be pre-configured;
  • the area configuration information may be the same or different from the area configuration information used for resource selection.
  • the base station may send area configuration information to the first terminal and the second terminal in the following manner:
  • the base station sends the area configuration information to the first terminal and the second terminal by broadcasting;
  • the base station sends area configuration information to the first terminal and the second terminal through dedicated signaling;
  • the base station may send at least one type of area configuration information to the first terminal and the second terminal; or may pre-configure at least one type of area configuration information for the first terminal and the second terminal.
  • each type of regional configuration information includes some or all of the following information:
  • At least two types of area configuration information sent by the base station are received at the first terminal and the second terminal, or at least two types of area configuration information are pre-configured for the first terminal and the second terminal; and each type of area configuration information includes each area When the length in the longitude direction and the width of each area in the latitude direction; the first terminal and the second terminal select the area configuration information to be used according to the following methods:
  • the first terminal and the second terminal select, from at least two types of area configuration information, the area configuration information that has the smallest length of each area in the longitude direction or the smallest width of each area in the latitude direction.
  • the area ID of the location is determined according to the selected area configuration information and the GPS coordinates of the location where they are located. The following describes the first terminal and the second terminal separately.
  • An optional implementation manner is that the first terminal determines the area ID of the location where the first terminal is located according to the selected area configuration information and the GPS coordinate information of the location where the first terminal is located.
  • the area ID includes the first area index in the longitude direction and the second area index in the latitude direction; for example, the area ID of the first terminal can be expressed as ⁇ X1, Y1 ⁇ , where X1 represents the first area in the longitude direction. Area index, Y1 represents the second area index in the latitude direction.
  • the first terminal determines the area ID of the location according to the following methods:
  • the first terminal determines the first area index according to the longitude coordinate value in the GPS coordinate information, the length of each area in the longitude direction, and the number of areas in the longitude direction;
  • the first terminal determines the second area index according to the latitude coordinate value in the GPS coordinate information, the width of each area in the latitude direction, and the number of areas in the latitude direction.
  • the first terminal obtains the GPS coordinate information of the location through GPS positioning; for example, the GPS coordinate information of the first terminal can be expressed as ⁇ x1, y1 ⁇ , where x1 represents the longitude coordinate value and y1 represents the latitude coordinate value.
  • the first terminal may use the following formula to determine the first area index in the area ID:
  • X1 represents the first area index in the longitude direction of the first terminal
  • x1 represents the longitude coordinate value of the first terminal
  • x0 represents the longitude coordinate value of the origin referenced during GPS positioning
  • L represents each area in the area configuration information
  • Nx represents the number of areas in the longitude direction in the area configuration information
  • Ceil represents the round-up operation
  • Mod represents the remainder operation.
  • the first terminal may use the following formula to determine the second area index in the area ID:
  • Y1 represents the second area index in the latitude direction of the first terminal
  • y1 represents the latitude coordinate value of the first terminal
  • y0 represents the latitude coordinate value of the origin referenced during GPS positioning
  • W represents each area in the area configuration information
  • Ny represents the number of areas in the latitude direction in the area configuration information
  • Ceil represents the rounding up operation
  • Mod represents the remainder operation.
  • An optional implementation manner is that the second terminal determines the area ID of the location where the second terminal is located according to the selected area configuration information and GPS coordinate information of the location where the second terminal is located.
  • the area ID includes the first area index in the longitude direction and the second area index in the latitude direction; for example, the area ID of the second terminal can be expressed as ⁇ X2, Y2 ⁇ , where X2 represents the first area in the longitude direction.
  • Area index, Y2 represents the second area index in the latitude direction.
  • the second terminal determines the area ID of the location according to the following methods:
  • the second terminal determines the first area index according to the longitude coordinate value in the GPS coordinate information, the length of each area in the longitude direction, and the number of areas in the longitude direction;
  • the second terminal determines the second area index according to the latitude coordinate value in the GPS coordinate information, the width of each area in the latitude direction, and the number of areas in the latitude direction.
  • the second terminal obtains the GPS coordinate information of the location through GPS positioning; for example, the GPS coordinate information of the second terminal can be expressed as ⁇ x2, y2 ⁇ , where x2 represents the longitude coordinate value and y2 represents the latitude coordinate value.
  • the second terminal may use the following formula to determine the first area index in the area ID:
  • X2 represents the first area index in the longitude direction of the second terminal
  • x2 represents the longitude coordinate value of the second terminal
  • x0 represents the longitude coordinate value of the origin referred to during GPS positioning
  • L represents each area in the area configuration information
  • Nx represents the number of areas in the longitude direction in the area configuration information
  • Ceil represents the round-up operation
  • Mod represents the remainder operation.
  • the second terminal may use the following formula to determine the second area index in the area ID:
  • Y2 represents the second area index in the latitude direction of the second terminal
  • y2 represents the latitude coordinate value of the second terminal
  • y0 represents the latitude coordinate value of the origin referred to during GPS positioning
  • W represents each area in the area configuration information
  • Ny represents the number of areas in the latitude direction in the area configuration information
  • Ceil represents the rounding up operation
  • Mod represents the remainder operation.
  • the second terminal after determining the area ID of the location, the second terminal will carry the area ID when sending the service data block to the first terminal, so that the first terminal can determine the distance to the second terminal.
  • first terminal determines the distance from the second terminal according to the following steps:
  • Step 1 The first terminal according to the first area index in the area ID where the first terminal is located, the first area index in the area ID where the second terminal is located, and the direction of longitude of each area
  • the length on the upper side determines the distance between the first terminal and the second terminal in the longitude direction
  • the first terminal determines the distance from the second terminal in the longitude direction according to the following formula:
  • N represents the distance between the first terminal and the second terminal in the longitude direction
  • X2 represents the first area index in the longitude direction of the second terminal
  • X1 represents the first area index in the longitude direction of the first terminal
  • L represents the area configuration The length of each area in the message in the longitude direction.
  • Step 2 The first terminal according to the second area index in the area ID where the first terminal is located, the second area index in the area ID where the second terminal is located, and the latitude direction of each area The length on the upper side, determining the distance between the first terminal and the second terminal in the latitude direction;
  • the first terminal determines the distance from the second terminal in the latitude direction according to the following formula:
  • E represents the distance between the first terminal and the second terminal in the latitude direction
  • Y2 represents the second area index in the latitude direction of the second terminal
  • Y1 represents the second area index in the latitude direction of the first terminal
  • W represents The length of each area in the latitude direction in the area configuration information.
  • Step 3 The first terminal determines the distance between the first terminal and the second terminal in the longitude direction and the distance between the first terminal and the second terminal in the latitude direction. The distance between the second terminals.
  • the first terminal determines the distance to the second terminal according to the following formula:
  • D represents the distance between the first terminal and the second terminal
  • N represents the distance between the first terminal and the second terminal in the longitude direction
  • E represents the distance between the first terminal and the second terminal in the latitude direction.
  • the first terminal determines the corresponding response operation according to the distance between the first terminal and the second terminal:
  • the first terminal does not send feedback information
  • the first terminal sends to the second terminal a feedback message indicating that the service data block is received;
  • the first terminal when the distance between the first terminal and the second terminal is not greater than the communication distance corresponding to the service data block and is greater than the first threshold, the first terminal sends a feedback message containing measurement information to the second terminal;
  • measurement information includes but not limited to:
  • SINR Signal to Interference plus Noise Ratio
  • RSRP Reference Signal Receiving Power
  • CSI Channel State Information
  • Precoding Matrix Indicator Precoding Matrix Indicator
  • PMI Rank Indicator
  • the second terminal after receiving the feedback message containing the measurement information sent by the first terminal, the second terminal adjusts the transmission parameters according to the measurement information;
  • the second terminal may adjust the transmission power and/or the coding and modulation strategy (Modulation and Coding Scheme, MCS) level (Level).
  • MCS Modulation and Coding Scheme
  • the embodiment of this application includes one second terminal UE1 and two first terminals UE2 and UE3; among them, the base station sends area configuration information to UE1, UE2, and UE3 as an example for description.
  • Step 401 The base station sends area configuration information to UE1, UE2, and UE3.
  • Step 402 UE1 determines the area ID of the location of UE1 according to the area configuration information and GPS coordinate information of the location of UE1;
  • the GPS coordinate information of the location of UE1 is ⁇ x1, y1 ⁇ ; the area ID of the location of UE1 is ⁇ X1, Y1 ⁇ ;
  • the first area index in the area ID where UE1 is located is located:
  • X1 represents the first area index in the longitude direction of UE1
  • x1 represents the longitude coordinate value of UE1
  • x0 represents the longitude coordinate value of the origin referenced during GPS positioning
  • L represents each area in the area configuration information in the longitude direction
  • Nx represents the number of areas in the longitude direction in the area configuration information
  • Ceil represents the round-up operation
  • Mod represents the remainder operation.
  • the second area index in the area ID where UE1 is located is located:
  • Y1 represents the second area index in the latitude direction of UE1
  • y1 represents the latitude coordinate value of UE1
  • y0 represents the latitude coordinate value of the origin referenced during GPS positioning
  • W represents the latitude direction of each area in the area configuration information
  • Ny represents the number of areas in the latitude direction in the area configuration information
  • Ceil represents the round-up operation
  • Mod represents the remainder operation.
  • Step 403 UE1 sends the service data block and the area ID where UE1 is located to UE2 and UE3.
  • Step 404 UE2 determines the area ID of the location of UE2 according to the area configuration information and GPS coordinate information of the location of UE2;
  • the GPS coordinate information of the location of UE2 is ⁇ x2, y2 ⁇ ;
  • the area ID of the location of UE1 is ⁇ X2, Y2 ⁇ ;
  • the first area index in the area ID where UE2 is located is located:
  • X2 represents the first area index in the longitude direction of UE2
  • x2 represents the longitude coordinate value of UE2
  • x0 represents the longitude coordinate value of the origin referenced during GPS positioning
  • L represents each area in the area configuration information in the longitude direction
  • Nx represents the number of areas in the longitude direction in the area configuration information
  • Ceil represents the rounding up operation
  • Mod represents the remainder operation
  • the second area index in the area ID where UE2 is located is located:
  • Y2 represents the second area index in the latitude direction of UE2
  • y2 represents the latitude coordinate value of UE2
  • y0 represents the latitude coordinate value of the origin referenced during GPS positioning
  • W represents the latitude direction of each area in the area configuration information
  • Ny represents the number of areas in the latitude direction in the area configuration information
  • Ceil represents the round-up operation
  • Mod represents the remainder operation.
  • Step 405 UE2 determines the distance to UE1;
  • UE2 determines the distance to UE1 according to the following methods:
  • UE2 determines the distance from UE1 in the longitude direction according to the following formula:
  • N1 represents the distance between UE1 and UE2 in the longitude direction
  • X2 represents the first area index in the longitude direction of UE2
  • X1 represents the first area index in the longitude direction of UE1
  • L represents the longitude of each area in the area configuration information. The length in the direction.
  • UE2 determines the latitude distance between UE2 and UE1 according to the following formula:
  • E1 represents the distance between UE1 and UE2 in the latitude direction
  • Y2 represents the second area index in the latitude direction of UE2
  • Y1 represents the second area index in the latitude direction of UE1
  • W represents the latitude of each area in the area configuration information. The length in the direction.
  • UE2 determines the distance to UE1 according to the following formula:
  • D1 represents the distance between UE1 and UE2
  • N1 represents the distance between UE1 and UE2 in the longitude direction
  • E2 represents the distance between UE1 and UE2 in the latitude direction.
  • Step 406 When UE2 determines that the distance to UE1 is not greater than the communication distance corresponding to the service data block, send a feedback message to UE1.
  • Step 407 UE3 determines the area ID of the location of UE3 according to the area configuration information and GPS coordinate information of the location of UE3;
  • the GPS coordinate information of the location of UE3 is ⁇ x3, y3 ⁇ ;
  • the area ID of the location of UE1 is ⁇ X2, Y2 ⁇ ;
  • the first area index in the area ID where UE3 is located is located:
  • X3 represents the first area index in the longitude direction of UE3
  • x3 represents the longitude coordinate value of UE3
  • x0 represents the longitude coordinate value of the origin referenced during GPS positioning
  • L represents each area in the area configuration information in the longitude direction
  • Nx represents the number of areas in the longitude direction in the area configuration information
  • Ceil represents the rounding up operation
  • Mod represents the remainder operation
  • the second area index in the area ID where UE3 is located is located:
  • Y3 represents the second area index in the latitude direction of UE3
  • y3 represents the latitude coordinate value of UE3
  • y0 represents the latitude coordinate value of the origin referenced during GPS positioning
  • W represents the latitude direction of each area in the area configuration information
  • Ny represents the number of areas in the latitude direction in the area configuration information
  • Ceil represents the round-up operation
  • Mod represents the remainder operation.
  • Step 408 UE3 determines the distance to UE1;
  • UE3 determines the distance to UE1 according to the following methods:
  • UE3 determines the distance from UE1 in the longitude direction according to the following formula:
  • N2 represents the distance between UE1 and UE3 in the longitude direction
  • X3 represents the first area index in the longitude direction of UE3
  • X1 represents the first area index in the longitude direction of UE1
  • L represents the longitude of each area in the area configuration information. The length in the direction.
  • UE3 determines the distance from UE1 in the latitude direction according to the following formula:
  • E2 represents the distance between UE1 and UE3 in the latitude direction
  • Y3 represents the second area index in the latitude direction of UE3
  • Y1 represents the second area index in the latitude direction of UE1
  • W represents the latitude of each area in the area configuration information. The length in the direction.
  • UE3 determines the distance to UE1 according to the following formula:
  • D2 represents the distance between UE1 and UE3
  • N2 represents the distance between UE1 and UE3 in the longitude direction
  • E2 represents the distance between UE1 and UE3 in the latitude direction.
  • Step 409 When UE3 determines that the distance to UE1 is greater than the communication distance corresponding to the service data block, it is determined not to send a feedback message to UE1.
  • step 404-step 406 and step 407-step 409 in the implementation is not limited, and step 404-step 406 and step 407-step 409 can also be executed at the same time.
  • UE1, UE2 and UE3 can adopt the feedback mode as shown in Fig. 5, where UE2 determines that the distance between UE1 and UE1 is not greater than the communication distance corresponding to the service data block, UE2 sends a feedback message to UE1, and UE3 determines If the distance from UE1 is greater than the communication distance corresponding to the service data block, UE3 determines not to send any feedback message to UE1.
  • the embodiment of this application includes one second terminal UE4 and three first terminals UE5, UE6, and UE7; among them, the base station sends area configuration information to UE4, UE5, UE6, and UE7 as an example for description.
  • Step 601 The base station sends area configuration information to UE4, UE5, UE6, and UE7.
  • Step 602 UE4 determines the area ID of the location of UE4 according to the area configuration information and GPS coordinate information of the location of UE4;
  • the GPS coordinate information of the location of UE4 is ⁇ x4, y4 ⁇ ; the area ID of the location of UE4 is ⁇ X4, Y4 ⁇ ;
  • the first area index in the area ID where UE4 is located is located:
  • X4 represents the first area index in the longitude direction of UE4, x4 represents the longitude coordinate value of UE4, x0 represents the longitude coordinate value of the origin referenced during GPS positioning, and L represents each area in the area configuration information in the longitude direction
  • Nx represents the number of areas in the longitude direction in the area configuration information, Ceil represents the rounding up operation, and Mod represents the remainder operation;
  • the second area index in the area ID where UE4 is located is located:
  • Y4 represents the second area index in the latitude direction of UE4, y4 represents the latitude coordinate value of UE4, y0 represents the latitude coordinate value of the origin referenced during GPS positioning, and W represents the latitude direction of each area in the area configuration information
  • the length of, Ny represents the number of areas in the latitude direction in the area configuration information, Ceil represents the round-up operation, and Mod represents the remainder operation.
  • Step 603 UE4 sends the service data block and the area ID where UE4 is located to UE5, UE6 and UE7.
  • Step 604 UE5 determines the area ID of the location of UE5 according to the area configuration information and GPS coordinate information of the location of UE5.
  • the GPS coordinate information of the location of UE5 is ⁇ x5, y5 ⁇ ;
  • the area ID of the location of UE4 is ⁇ X4, Y4 ⁇ ;
  • the first area index in the area ID where UE5 is located is located:
  • X5 represents the first area index in the longitude direction of UE5
  • x5 represents the longitude coordinate value of UE5
  • x0 represents the longitude coordinate value of the origin referenced during GPS positioning
  • L represents each area in the area configuration information in the longitude direction
  • Nx represents the number of areas in the longitude direction in the area configuration information
  • Ceil represents the round-up operation
  • Mod represents the remainder operation.
  • the second area index in the area ID where UE5 is located is located:
  • Y5 represents the second area index in the latitude direction of UE5
  • y5 represents the latitude coordinate value of UE5
  • y0 represents the latitude coordinate value of the origin referenced in GPS positioning
  • W represents the latitude direction of each area in the area configuration information
  • Ny represents the number of areas in the latitude direction in the area configuration information
  • Ceil represents the round-up operation
  • Mod represents the remainder operation.
  • Step 605 UE5 determines the distance to UE4;
  • UE5 determines the distance to UE4 according to the following methods:
  • UE5 determines the distance from UE4 in the longitude direction according to the following formula:
  • N3 represents the distance between UE4 and UE4 in the longitude direction
  • X5 represents the first area index in the longitude direction of UE5
  • X4 represents the first area index in the longitude direction of UE4
  • L represents the longitude of each area in the area configuration information. The length in the direction.
  • UE5 determines the distance from UE4 in the latitude direction according to the following formula:
  • E3 represents the distance between UE5 and UE4 in the latitude direction
  • Y5 represents the second area index in the latitude direction of UE5
  • Y4 represents the second area index in the latitude direction of UE4
  • W represents the latitude of each area in the area configuration information. The length in the direction.
  • UE5 determines the distance to UE4 according to the following formula:
  • D3 represents the distance between UE5 and UE4
  • N3 represents the distance between UE5 and UE4 in the longitude direction
  • E3 represents the distance between UE5 and UE4 in the latitude direction.
  • Step 606 When UE5 determines that the distance to UE4 is not greater than the communication distance corresponding to the service data block and not greater than the first threshold, send a feedback message to UE4.
  • Step 607 The UE6 determines the area ID of the location of the UE6 according to the area configuration information and the GPS coordinate information of the location of the UE6.
  • the GPS coordinate information of the location of UE6 is ⁇ x6, y6 ⁇ ;
  • the area ID of the location of UE4 is ⁇ X4, Y4 ⁇ ;
  • the first area index in the area ID where UE6 is located is located:
  • X6 represents the first area index in the longitude direction of UE6, x4 represents the longitude coordinate value of UE4, x0 represents the longitude coordinate value of the origin referred to during GPS positioning, and L represents each area in the area configuration information in the longitude direction
  • Nx represents the number of areas in the longitude direction in the area configuration information, Ceil represents the round-up operation, and Mod represents the remainder operation.
  • the second area index in the area ID where UE6 is located is located:
  • Y6 represents the second area index in the latitude direction of UE6
  • y4 represents the latitude coordinate value of UE4
  • y 0 represents the latitude coordinate value of the origin referenced in GPS positioning
  • W represents the latitude direction of each area in the area configuration information
  • Ny represents the number of areas in the latitude direction in the area configuration information
  • Ceil represents the rounding up operation
  • Mod represents the remainder operation.
  • Step 608 UE6 determines the distance to UE4.
  • UE6 determines the distance to UE4 according to the following methods:
  • UE6 determines the distance from UE4 in the longitude direction according to the following formula:
  • N4 represents the distance between UE6 and UE4 in the longitude direction
  • X4 represents the first area index in the longitude direction of UE4
  • X6 represents the first area index in the longitude direction of UE6
  • L represents the longitude of each area in the area configuration information. The length in the direction.
  • UE6 determines the distance from UE4 in the latitude direction according to the following formula:
  • E4 represents the distance between UE6 and UE4 in the latitude direction
  • Y6 represents the second area index in the latitude direction of UE6
  • Y4 represents the second area index in the latitude direction of UE4
  • W represents the latitude of each area in the area configuration information. The length in the direction.
  • UE6 determines the distance to UE4 according to the following formula:
  • D4 represents the distance between UE6 and UE4
  • N4 represents the distance between UE6 and UE4 in the longitude direction
  • E4 represents the distance between UE6 and UE4 in the latitude direction.
  • Step 609 When UE6 determines that the distance to UE4 is not greater than the communication distance corresponding to the service data block and is greater than the first threshold, send a feedback message containing measurement information to UE4.
  • Step 610 The UE7 determines the area ID of the location of the UE7 according to the area configuration information and the GPS coordinate information of the location of the UE7;
  • the GPS coordinate information of the location of UE7 is ⁇ x7, y7 ⁇ ;
  • the area ID of the location of UE4 is ⁇ X4, Y4 ⁇ ;
  • the first area index in the area ID where UE6 is located is located:
  • X7 represents the first area index in the longitude direction of UE7
  • x4 represents the longitude coordinate value of UE4
  • x0 represents the longitude coordinate value of the origin referenced during GPS positioning
  • L represents each area in the area configuration information in the longitude direction
  • Nx represents the number of areas in the longitude direction in the area configuration information
  • Ceil represents the round-up operation
  • Mod represents the remainder operation.
  • the second area index in the area ID where UE7 is located is located:
  • Y7 represents the second area index in the latitude direction of UE7
  • y4 represents the latitude coordinate value of UE4
  • y0 represents the latitude coordinate value of the origin referenced during GPS positioning
  • W represents the latitude direction of each area in the area configuration information
  • Ny represents the number of areas in the latitude direction in the area configuration information
  • Ceil represents the round-up operation
  • Mod represents the remainder operation.
  • Step 611 UE7 determines the distance to UE4;
  • UE7 determines the distance to UE4 according to the following methods:
  • UE7 determines the distance from UE4 in the longitude direction according to the following formula:
  • N5 represents the distance between UE7 and UE4 in the longitude direction
  • X4 represents the first area index in the longitude direction of UE4
  • X7 represents the first area index in the longitude direction of UE7
  • L represents the longitude of each area in the area configuration information. The length in the direction.
  • UE7 determines the distance from UE4 in the latitude direction according to the following formula:
  • E5 represents the distance between UE7 and UE4 in the latitude direction
  • Y7 represents the second area index in the latitude direction of UE7
  • Y4 represents the second area index in the latitude direction of UE4
  • W represents the latitude of each area in the area configuration information. The length in the direction.
  • UE7 determines the distance to UE4 according to the following formula:
  • D5 represents the distance between UE7 and UE4
  • N5 represents the distance between UE7 and UE4 in the longitude direction
  • E5 represents the distance between UE7 and UE4 in the latitude direction.
  • Step 612 When UE7 determines that the distance from UE4 is greater than the communication distance corresponding to the service data block, it is determined not to send a feedback message to UE4.
  • Step 613 UE4 adjusts transmission parameters according to the feedback message containing measurement information sent by UE6.
  • step 604-step 606, step 607-step 609, and step 610-step 612 in the implementation is not limited, and step 604-step 606, step 607-step 609, and step 610-step 612 are also not limited. Can be executed simultaneously.
  • UE4, UE5, UE6, and UE7 may adopt the feedback mode as shown in FIG. 7, where UE5 determines that the distance between UE4 and UE4 is not greater than the communication distance corresponding to the service data block and not greater than the first threshold, then UE5 Send a feedback message to UE4. UE6 determines that the distance to UE4 is not greater than the communication distance corresponding to the service data block and is greater than the first threshold. Then UE6 sends a feedback message containing measurement information to UE4, and UE7 determines that the distance to UE4 is greater than For the communication distance corresponding to the service data block, UE7 determines not to send any feedback message to UE4.
  • the embodiment of the present application also provides a terminal. Since the principle of the terminal to solve the problem is similar to the method of determining the default search engine in the embodiment of the present application, the implementation of the terminal can refer to the implementation of the method, and repeat it. I won't repeat it here.
  • a first terminal for feedback in an embodiment of the present application includes: a processor 800, a memory 801, a transceiver 802, and a bus interface.
  • the processor 800 is responsible for managing the bus architecture and general processing, and the memory 801 can store data used by the processor 800 when performing operations.
  • the transceiver 802 is used to receive and send data under the control of the processor 800.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 800 and various circuits of the memory represented by the memory 801 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further descriptions are provided herein.
  • the bus interface provides the interface.
  • the processor 800 is responsible for managing the bus architecture and general processing, and the memory 801 can store data used by the processor 800 when performing operations.
  • the process disclosed in the embodiment of the present application may be applied to the processor 800 or implemented by the processor 800.
  • each step of the signal processing flow can be completed by hardware integrated logic circuits in the processor 800 or instructions in the form of software.
  • the processor 800 may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can implement or execute the embodiments of the present application The disclosed methods, steps and logic block diagrams.
  • the general-purpose processor may be a microprocessor or any conventional processor.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory 801, and the processor 800 reads the information in the memory 801 and completes the steps of the signal processing flow in combination with its hardware.
  • the processor 800 is configured to read a program in the memory 801 and execute:
  • the second terminal After receiving the service data block sent by the second terminal, determine the distance between the first terminal and the second terminal according to the first location information of the first terminal and the second location information of the second terminal; The distance between the second terminals is not greater than the communication distance corresponding to the service data block, and a feedback message indicating that the service data block is received is sent to the second terminal.
  • the processor 800 is further configured to: before determining the distance between the first terminal and the second terminal, receive second location information sent by the second terminal.
  • the first location information is the area ID of the location where the first terminal is located
  • the second location information is the area ID of the location where the second terminal is located
  • the processing unit 800 is further configured to:
  • the area configuration information includes some or all of the following information:
  • each area in the longitude direction The length of each area in the longitude direction; the width of each area in the latitude direction; the number of areas in the longitude direction; the number of areas in the latitude direction.
  • each type of area configuration information sent by the base station is received or at least two types of area configuration information are pre-configured for the first terminal; each type of area configuration information includes the length and the length of each area in the longitude direction. The width of each area in the latitude direction;
  • the processor 800 is specifically configured to select, from at least two types of area configuration information, the area configuration information with the smallest length of each area in the longitude direction or the smallest width of each area in the latitude direction; according to the selected area configuration information And the GPS coordinate information of the location of the first terminal to determine the area ID of the location of the first terminal.
  • the area ID includes a first area index in the longitude direction and a second area index in the latitude direction;
  • the processor 800 is specifically configured to:
  • the second area index is determined according to the latitude coordinate value in the GPS coordinate information, the width of each area in the latitude direction, and the number of areas in the latitude direction.
  • processor 800 is specifically configured to:
  • the second area index in the area ID where the first terminal is located determines the first terminal and the second area 2.
  • processor 800 is specifically configured to:
  • the distance between the first terminal and the second terminal is greater than the first threshold and not greater than the communication distance corresponding to the service data block, send a feedback message containing measurement information to the second terminal so that the second terminal can adjust the transmission parameters according to the measurement information .
  • a second terminal for feedback in an embodiment of the present application includes: a processor 900, a memory 901, a transceiver 902, and a bus interface.
  • the processor 900 is responsible for managing the bus architecture and general processing, and the memory 901 can store data used by the processor 900 when performing operations.
  • the transceiver 902 is used to receive and transmit data under the control of the processor 900.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 900 and various circuits of the memory represented by the memory 901 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further descriptions are provided herein.
  • the bus interface provides the interface.
  • the processor 900 is responsible for managing the bus architecture and general processing, and the memory 901 can store data used by the processor 900 when performing operations.
  • the process disclosed in the embodiment of the present application may be applied to the processor 900 or implemented by the processor 900.
  • each step of the signal processing flow can be completed by an integrated logic circuit of hardware in the processor 900 or instructions in the form of software.
  • the processor 900 may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can implement or execute the embodiments of the present application The disclosed methods, steps and logic block diagrams.
  • the general-purpose processor may be a microprocessor or any conventional processor.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory 901, and the processor 900 reads the information in the memory 901, and completes the steps of the signal processing flow in combination with its hardware.
  • the processor 900 is configured to read a program in the memory 901 and execute:
  • the processor 900 when sending the service data block to the first terminal, is further configured to:
  • the second location information is sent to the first terminal, so that the first terminal determines the distance between the first terminal and the second terminal according to the second location information and the first location information of the first terminal.
  • the first location information is the area ID of the location where the first terminal is located
  • the second location information is the area ID of the location where the second terminal is located
  • the processor 900 Before sending the service data block containing the second location information of the second terminal to the first terminal, the processor 900 is further configured to:
  • the area configuration information includes some or all of the following information:
  • each area in the longitude direction The length of each area in the longitude direction; the width of each area in the latitude direction; the number of areas in the longitude direction; the number of areas in the latitude direction.
  • each type of area configuration information includes the length of each area in the longitude direction and the length of each area in the latitude direction Upper width
  • the processor 900 is specifically configured to:
  • the coordinate information determines the area ID of the location where the second terminal is located.
  • the area ID includes a first area index in the longitude direction and a second area index in the latitude direction;
  • the processor 900 is specifically configured to:
  • the second area index is determined according to the latitude coordinate value in the GPS coordinate information, the width of each area in the latitude direction, and the number of areas in the latitude direction.
  • the processor 900 is specifically configured to:
  • a first terminal includes:
  • the determining module 1000 is configured to, after receiving the service data block sent by the second terminal, determine the first terminal and the second terminal according to the first location information of the first terminal and the second location information of the second terminal. The distance between the second terminals;
  • the first sending module 1001 is configured to send to the second terminal if the distance between the first terminal and the second terminal is not greater than the communication distance corresponding to the service data block, indicating that the service data is received Feedback message of the block.
  • the determining module 1000 is further configured to: before determining the distance between the first terminal and the second terminal, receive second location information sent by the second terminal.
  • the first location information is the area ID of the location where the first terminal is located
  • the second location information is the area ID of the location where the second terminal is located
  • the determining module 1000 is further configured to:
  • the area configuration information includes some or all of the following information:
  • each area in the longitude direction The length of each area in the longitude direction; the width of each area in the latitude direction; the number of areas in the longitude direction; the number of areas in the latitude direction.
  • each type of area configuration information includes the length and length of each area in the longitude direction The width of each area in the latitude direction;
  • the determining module 1000 is specifically configured to: select the area configuration information with the smallest length of each area in the longitude direction or the smallest width of each area in the latitude direction from at least two types of area configuration information; according to the selected area configuration information, and The GPS coordinate information of the location of the first terminal determines the area ID of the location of the first terminal.
  • the area ID includes a first area index in the longitude direction and a second area index in the latitude direction;
  • the determining module 1000 is specifically configured to:
  • the second area index is determined according to the latitude coordinate value in the GPS coordinate information, the width of each area in the latitude direction, and the number of areas in the latitude direction.
  • the determining module 1000 is specifically configured to:
  • the second area index in the area ID where the first terminal is located determines the first terminal and the second area 2.
  • the first sending module 1001 is specifically configured to:
  • the distance between the first terminal and the second terminal is greater than the first threshold and not greater than the communication distance corresponding to the service data block, send a feedback message containing measurement information to the second terminal so that the second terminal can adjust the transmission parameters according to the measurement information .
  • a second terminal in an embodiment of the present application includes:
  • the second sending module 1100 is configured to send service data blocks to the first terminal
  • the receiving module 1101 is configured to receive a feedback message sent by the first terminal indicating that the service data block is received; wherein, the feedback message is the first terminal according to the first location information of the first terminal and The second location information of the second terminal is sent after determining that the distance to the second terminal is not greater than the communication distance corresponding to the service data block.
  • the second sending module 1100 when sending the service data block to the first terminal, is further configured to:
  • the second location information is sent to the first terminal, so that the first terminal determines the distance between the first terminal and the second terminal according to the second location information and the first location information of the first terminal.
  • the first location information is the area ID of the location where the first terminal is located
  • the second location information is the area ID of the location where the second terminal is located
  • the second sending module 1100 is further configured to:
  • the area ID of the location of the second terminal is determined according to the area configuration information used to indicate the area division status in the coverage area of the base station and the GPS coordinate information of the location of the second terminal; wherein the area configuration information is sent by the base station or pre-configured.
  • the area configuration information includes some or all of the following information:
  • each area in the longitude direction The length of each area in the longitude direction; the width of each area in the latitude direction; the number of areas in the longitude direction; the number of areas in the latitude direction.
  • each type of area configuration information includes the length of each area in the longitude direction and the length of each area in the latitude direction. width;
  • the second sending module 1100 is specifically configured to:
  • the coordinate information determines the area ID of the location where the second terminal is located.
  • the area ID includes a first area index in the longitude direction and a second area index in the latitude direction;
  • the second sending module 1100 is specifically configured to:
  • the second area index is determined according to the latitude coordinate value in the GPS coordinate information, the width of each area in the latitude direction, and the number of areas in the latitude direction.
  • the receiving module 1101 is specifically configured to:
  • the embodiments of the present application also provide a computer storable medium on which a computer program is stored, and when the program is executed by a processor, the steps of any of the above methods are implemented.
  • the embodiment of the present application provides a method for feedback. Since this method corresponds to the first terminal in the system for feedback in the embodiment of the present application, and the principle of the method for solving the problem is similar to that of the system, Therefore, the implementation of this method can refer to the implementation of the system, and the repetition will not be repeated.
  • a feedback method includes:
  • Step 1201 After receiving the service data block sent by the second terminal, the first terminal determines the relationship between the first terminal and the second terminal according to the first location information of the first terminal and the second location information of the second terminal. The distance between the second terminals;
  • Step 1202 if the distance between the first terminal and the second terminal is not greater than the communication distance corresponding to the service data block, the first terminal sends to the second terminal a message indicating that the service data is received Feedback message of the block.
  • the method further includes:
  • the first terminal receives the second location information sent by the second terminal.
  • the first location information is the area ID of the location where the first terminal is located
  • the second location information is the area ID of the location where the second terminal is located
  • the method further includes:
  • the first terminal determines the area ID of the location where the first terminal is located according to the area configuration information used to indicate the area division status within the coverage area of the base station and the GPS coordinate information of the location where the first terminal is located; wherein, the area The configuration information is sent by the base station or pre-configured.
  • the area configuration information includes some or all of the following information:
  • the first terminal receives at least two types of area configuration information sent by the base station or pre-configures at least two types of area configuration information for the first terminal; each type of area configuration information includes the longitude of each area The length in the direction and the width of each area in the latitude direction;
  • the first terminal determining the area ID of the location of the first terminal according to the area configuration information and the GPS coordinate information of the location of the first terminal includes:
  • the first terminal selects, from at least two types of area configuration information, the area configuration information that has the smallest length of each area in the longitude direction or the smallest width of each area in the latitude direction;
  • the first terminal determines the area ID of the location where the first terminal is located according to the selected area configuration information and the GPS coordinate information of the location where the first terminal is located.
  • the area ID includes a first area index in a longitude direction and a second area index in a latitude direction;
  • the first terminal determines the area ID of the location in the following manner:
  • the first terminal determines the first area index according to the longitude coordinate value in the GPS coordinate information, the length of each area in the longitude direction, and the number of areas in the longitude direction;
  • the first terminal determines the second area index according to the latitude coordinate value in the GPS coordinate information, the width of each area in the latitude direction, and the number of areas in the latitude direction.
  • the determining, by the first terminal, the distance between the first terminal and the second terminal includes:
  • the first terminal according to the first area index in the area ID of the location where the first terminal is located, the first area index in the area ID of the location where the second terminal is located, and the longitudinal direction of each area The length of, determines the distance between the first terminal and the second terminal in the longitude direction;
  • the first terminal according to the second area index in the area ID of the location where the first terminal is located, the second area index in the area ID of the location where the second terminal is located, and the latitude direction of each area The length of, determines the distance between the first terminal and the second terminal in the latitude direction;
  • the first terminal determines the distance between the first terminal and the second terminal in the longitude direction and the distance between the first terminal and the second terminal in the latitude direction. The distance between the second terminals.
  • the sending, by the first terminal, to the second terminal a feedback message indicating that the service data block has been received includes:
  • the first terminal sends a feedback containing measurement information to the second terminal Message to enable the second terminal to adjust transmission parameters according to the measurement information.
  • the embodiment of the present application provides a method for feedback. Because the method corresponds to the second terminal in the system for feedback in the embodiment of the present application, and the principle of the method for solving the problem is similar to that of the system, Therefore, the implementation of this method can refer to the implementation of the system, and the repetition will not be repeated.
  • a feedback method in an embodiment of the present application includes:
  • Step 1301 The second terminal sends a service data block to the first terminal
  • Step 1302 The second terminal receives a feedback message sent by the first terminal indicating that the service data block is received; wherein, the feedback message is that the first terminal is based on the first position of the first terminal.
  • the information and the second location information of the second terminal are sent after determining that the distance with the second terminal is not greater than the communication distance corresponding to the service data block.
  • the method further includes:
  • the second terminal sends the second location information to the first terminal, so that the first terminal determines the first terminal based on the second location information and the first location information of the first terminal The distance from the second terminal.
  • the first location information is the area ID of the location where the first terminal is located
  • the second location information is the area ID of the location where the second terminal is located
  • the method further includes:
  • the second terminal determines the area ID of the location of the second terminal according to the area configuration information used to indicate the area division status of the coverage area of the base station and the GPS coordinate information of the location of the second terminal; wherein, the area The configuration information is sent by the base station or pre-configured.
  • the area configuration information includes some or all of the following information:
  • the second terminal receives at least two types of area configuration information sent by the base station or pre-configures at least two types of area configuration information for the second terminal; each type of area configuration information includes the longitude of each area The length in the direction and the width of each area in the latitude direction;
  • the second terminal determining the area ID of the location of the second terminal according to the area configuration information and the GPS coordinate information of the location of the second terminal includes:
  • the second terminal selects, from at least two types of area configuration information, the area configuration information with the smallest length of each area in the longitude direction or the smallest width of each area in the latitude direction;
  • the second terminal determines the area ID of the location of the second terminal according to the selected area configuration information and the GPS coordinate information of the location of the second terminal.
  • the area ID includes a first area index in a longitude direction and a second area index in a latitude direction;
  • the second terminal determines the area ID of the location in the following manner:
  • the second terminal determines the first area index according to the longitude coordinate value in the GPS coordinate information, the length of each area in the longitude direction, and the number of areas in the longitude direction;
  • the second terminal determines the second area index according to the latitude coordinate value in the GPS coordinate information, the width of each area in the latitude direction, and the number of areas in the latitude direction.
  • the receiving, by the second terminal, the feedback message sent by the first terminal indicating that the service data block has been received includes:
  • the second terminal receives the feedback message containing measurement information sent by the first terminal, and adjusts transmission parameters according to the measurement information; wherein, the feedback message containing the measurement information is determined by the first terminal. After the distance between the second terminals is greater than the first threshold and not greater than the communication distance corresponding to the service data block.
  • the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
  • a computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne le domaine technique des communications sans fil, et en particulier, un procédé de rétroaction, un terminal et un support d'enregistrement informatique, pour une utilisation dans la résolution du problème selon lequel il n'y a pas de solution de rétroaction pour un bloc de données de service envoyé par un UE d'extrémité d'envoi et ayant l'exigence de la distance de communication maximale à présent. Dans des modes de réalisation de la présente invention, après la réception d'un bloc de données de service envoyé par un second terminal, un premier terminal détermine une distance entre le premier terminal et le second terminal selon des premières informations de position du premier terminal et des secondes informations de position du second terminal ; si la distance entre le premier terminal et le second terminal n'est pas supérieure à une distance de communication correspondant au bloc de données de service, le premier terminal envoie un message de rétroaction indiquant la réception du bloc de données de service au second terminal. Lorsque la distance entre le premier terminal et le second terminal est supérieure à la distance de communication correspondant au bloc de données de service, le premier terminal n'envoie plus le message de rétroaction et, par conséquent, l'interférence vers un système peut être évitée, et l'occupation d'une ressource de communication due à la rétroaction d'informations superflues peut être évitée.
PCT/CN2020/093811 2019-08-09 2020-06-01 Procédé de rétroaction, terminal et support d'enregistrement informatique WO2021027372A1 (fr)

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