WO2021082010A1 - Procédé et appareil d'acquisition d'informations de position - Google Patents

Procédé et appareil d'acquisition d'informations de position Download PDF

Info

Publication number
WO2021082010A1
WO2021082010A1 PCT/CN2019/115147 CN2019115147W WO2021082010A1 WO 2021082010 A1 WO2021082010 A1 WO 2021082010A1 CN 2019115147 W CN2019115147 W CN 2019115147W WO 2021082010 A1 WO2021082010 A1 WO 2021082010A1
Authority
WO
WIPO (PCT)
Prior art keywords
network device
coordinate
component
corrected
value
Prior art date
Application number
PCT/CN2019/115147
Other languages
English (en)
Chinese (zh)
Inventor
陈二凯
向铮铮
焦春旭
卢磊
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2019/115147 priority Critical patent/WO2021082010A1/fr
Publication of WO2021082010A1 publication Critical patent/WO2021082010A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]

Definitions

  • This application relates to the field of wireless communication technology, and in particular to a method and device for acquiring position information.
  • the receiving end network device chooses whether to perform hybrid automatic repeat request (HARQ) feedback based on the distance. Specifically, the receiving end The network device calculates the distance between the receiving-end network device and the sending-end network device according to its own location information and the location information of the sending UE. When the distance does not exceed the set distance threshold, the receiving-end network device sends to the sending-end network device HARQ feedback, otherwise, HARQ feedback is not sent.
  • HARQ hybrid automatic repeat request
  • the zone-based division method is to divide the coordinate system composed of longitude and latitude into several zones. And give each area a number. The number of each area is the zone ID of each area, where Longitude represents longitude, Latitude represents latitude, x and y represent the absolute position coordinates converted from latitude and longitude, and L and W represent the length of the zone. And width, N x and N y are the modulus of zone ID in the latitude and longitude direction.
  • the sending end network device When it is necessary to indicate the location of the sending end network device, the sending end network device sends its zone ID to the receiving end network device, and the receiving end network device determines the location of the sending end network device according to the received zone ID, thereby calculating the receiving end The distance between the network device and the sending end network device.
  • the length and width of the zone are set to be larger to avoid frequent resource switching, which leads to the network equipment indicated when the zone ID is sent.
  • the accuracy of the location information is low, and as shown in Figure 1, the zone ID is multiplexed, resulting in the same zone ID sent by the sending end network device in different locations, and the receiving end network device cannot accurately determine the location of the sending end network device.
  • the embodiments of the present application provide a method and device for acquiring location information, which can be applied to communication systems, such as V2X, LTE and vehicle (long term evolution-vehicle, LTE-V), vehicle-to-vehicle (V2V) , Internet of Vehicles, machine type communication (MTC), Internet of things (IoT), LTE and machine (long term evolution-machine, LTE-M), machine to machine communication (machine to machine, M2M) ), etc., so as to indicate location information relatively accurately and without ambiguity, and to ensure that the overhead is not too high when indicating location information.
  • communication systems such as V2X, LTE and vehicle (long term evolution-vehicle, LTE-V), vehicle-to-vehicle (V2V) , Internet of Vehicles, machine type communication (MTC), Internet of things (IoT), LTE and machine (long term evolution-machine, LTE-M), machine to machine communication (machine to machine, M2M) ), etc., so
  • a method for acquiring location information includes: a first network device acquires location coordinates of the first network device; Take the modulo operation to obtain the first coordinate, where the first value is related to the maximum distance that the first network device and the second network device can communicate; the first network device corrects the first coordinate; the first network device corrects the corrected first value A coordinate is sent to the second network device; the second network device receives the corrected first coordinate sent by the first network device; the second network device obtains the position coordinates of the second network device; The position coordinate uses the first value as the modulus to perform a modulo operation to obtain the second coordinate; the second network device obtains the distance between the second network device and the first network device according to the corrected first and second coordinates; The second network device obtains the location coordinates of the first network device according to the location coordinates of the second network device, the corrected first coordinates and the second coordinates.
  • the first network device can limit the position coordinates of the first network device within the numerical range corresponding to the first value, and perform quantitative correction on the first coordinate obtained by taking the modulus, and send the corrected
  • the first coordinate can indicate the position coordinate of the first network device relatively accurately and without ambiguity, and can ensure that the number of bits required for sending the corrected first coordinate is small and the overhead is low.
  • the first value is greater than or equal to 2Dmax, where Dmax is the maximum distance that the first network device and the second network device can communicate, so that the position coordinates of the first network device can be limited to those corresponding to the first value.
  • Dmax is the maximum distance that the first network device and the second network device can communicate
  • the position coordinates of the first network device can be limited to those corresponding to the first value.
  • the obtained first coordinate value is less than or equal to the first value, which can effectively ensure that the number of bits required for sending the corrected first coordinate is small and the overhead is low.
  • the first network device correcting the first coordinate may include: the first network device corrects the coordinate component of the first coordinate in the first direction according to the second value, where the second value is the same as The number of bits available for sending the coordinate component of the first coordinate in the first direction is related; and/or the first network device corrects the coordinate component of the first coordinate in the second direction according to the third value, where the third value is related to the sending The number of bits available for the coordinate component of the first coordinate in the second direction is related.
  • the first coordinate can be converted into a corresponding binary number, which is convenient for transmission in a digital communication system.
  • the first network device sending the corrected first coordinate to the second network device may include: the first network device forwards the corrected first coordinate in the coordinate component in the first direction
  • the bits on M1-N1 bits are sent to the second network device, and the bits on the last N1 bits are sent to the second network device, where M1 is the second value, M1 is a positive integer, and N1 is less than or equal to M1
  • the first network device sends the first M2-N2 bits of the coordinate component of the corrected first coordinate in the second direction to the second network device, and sends the last N2 bits
  • M2 is the third value
  • M2 is a positive integer
  • N2 is a positive integer less than or equal to M2.
  • the corrected first coordinate includes a coordinate component of the first coordinate corrected according to the second value in the first direction and/or a coordinate component of the first coordinate corrected according to the third value in the second direction.
  • the second network device receiving the corrected first coordinate sent by the first network device may include: the second network device receiving the corrected first coordinate sent by the first network device among the coordinate components in the first direction Bits on the first M1-N1 bits, receiving the bits on the last N1 bits of the coordinate component of the first coordinate in the first direction sent by the first network device, where M1 is the second value , M1 is a positive integer, N1 is a positive integer less than or equal to M1; and/or the second network device receives the first M2-N2 coordinate components in the second direction of the corrected first coordinate sent by the first network device The bit on the bit position, receiving the bit on the last N2 bits of the coordinate component of the first coordinate in the second direction sent by the first network device, where M2 is the third value, and M2 is a positive integer , N2 is a positive integer less than or equal to M2.
  • the component of the distance between the second network device and the first network device in the first direction may satisfy the following formula:
  • the component of the distance between the second network device and the first network device in the second direction may satisfy the following formula: Where d x represents the component of the distance between the second network device and the first network device in the first direction, Represents the component of the second coordinate in the first direction, Represents the coordinate component of the corrected first coordinate in the first direction, D unit represents the first value, and d y represents the component of the distance between the second network device and the first network device in the second direction, Represents the component of the second coordinate in the second direction, Represents the coordinate component of the corrected first coordinate in the second direction.
  • the second network device can send indication information or feedback information to the first network device.
  • the second network device can send indication information or feedback information to the first network device. 2.
  • the network device may not send indication information or feedback information to the first network device, thereby saving transmission resources.
  • the second network device may also obtain the location coordinates of the first network device according to the location coordinates of the second network device, the corrected first coordinates, and the second coordinates, so that the second network device determines the first After the location coordinates of a network device, operations such as prediction, decision-making, and scheduling can be facilitated.
  • the coordinate vector of the position coordinate of the first network device in the first direction satisfies the following formula:
  • the coordinate vector of the position coordinate of the first network device in the second direction satisfies the following formula: among them, Represents the coordinate component of the location coordinate of the first network device in the first direction, x R represents the component of the location coordinate of the second network device in the first direction, Represents the component of the second coordinate in the first direction, Represents the coordinate component of the corrected first coordinate in the first direction, D unit represents the first value, Represents the coordinate component of the location coordinate of the first network device in the second direction, y R represents the component of the second location coordinate in the second direction, Represents the component of the second coordinate in the second direction, Represents the coordinate component of the corrected first coordinate in the second direction.
  • a method for acquiring location information includes: a first network device acquires location coordinates of the first network device; Take the modulo operation to obtain the first coordinate, where the first value is related to the maximum distance that the first network device and the second network device can communicate; the first network device sends the first coordinate to the second network device; the second network device receives The first coordinates sent by the first network device; the second network device obtains the location coordinates of the second network device; the second network device performs a modulo operation on the location coordinates of the second network device using the first value as the modulus to obtain the second Coordinates; the second network device obtains the distance between the second network device and the first network device according to the first coordinates and the second coordinates; the second network device obtains the distance between the second network device and the first network device according to the location coordinates, the first coordinates and the second coordinates of the second network device , To obtain the location coordinates of the first network device.
  • the first network device can limit the position coordinates of the first network device within the numerical range corresponding to the first value, and send the first coordinate obtained by modulo, which can achieve relatively accurate and unambiguous indications.
  • the position coordinates of the first network device can ensure that the number of bits required for sending the first coordinates is small and the overhead is low.
  • the first value is greater than or equal to 2Dmax, where Dmax is the maximum distance that the first network device and the second network device can communicate, so that the position coordinates of the first network device can be limited to those corresponding to the first value.
  • Dmax is the maximum distance that the first network device and the second network device can communicate
  • the position coordinates of the first network device can be limited to those corresponding to the first value.
  • the obtained first coordinate value is less than or equal to the first value, which can effectively ensure that the number of bits required for sending the corrected first coordinate is low and the overhead is low.
  • the first network device may correct the first coordinates before the first network device sends the first coordinates to the second network device.
  • the first network device may modify the coordinate component of the first coordinate in the first direction according to the second value, where the second value is related to the number of bits available for sending the coordinate component of the first coordinate in the first direction; and /Or the first network device can modify the coordinate component of the second coordinate in the second direction according to the third value, where the third value is related to the number of bits available for sending the coordinate component of the first coordinate in the second direction, so ,
  • the first coordinate can be converted into the corresponding binary number, which is convenient for transmission in the digital communication system.
  • the first network device sends the corrected first coordinates to the second network device; or the first network device sends the first coordinates and the corrected first coordinates to the second network device.
  • the second network device receives the corrected first coordinate; or the second network device receives the first coordinate and the corrected first coordinate.
  • the first network device when the first network device sends the corrected first coordinates to the second network device, it may include:
  • the first network device sends the first M1-N1 bits in the coordinate components of the first coordinate in the first direction to the second network device, and sends the bits in the last N1 bits to the second network device.
  • a network device where M1 is a second value, M1 is a positive integer, and N1 is a positive integer less than or equal to M1; and/or the first network device moves the corrected first coordinate before the coordinate component in the second direction by M2 -The bits on N2 bits are sent to the second network device, and the bits on the last N2 bits are sent to the second network device, where M2 is the third value, M2 is a positive integer, and N2 is less than or equal to M2 Positive integer. In this way, the high and low bits of the corrected first coordinate are separately indicated, which can further save transmission resources.
  • the corrected first coordinate includes a coordinate component of the first coordinate corrected according to the second value in the first direction and/or a coordinate component of the first coordinate corrected according to the third value in the second direction.
  • the second network device receiving the corrected first coordinate sent by the first network device may include: the second network device receiving the corrected first coordinate sent by the first network device among the coordinate components in the first direction Bits on the first M1-N1 bits, receiving the bits on the last N1 bits of the coordinate component of the first coordinate in the first direction sent by the first network device, where M1 is the second value , M1 is a positive integer, N1 is a positive integer less than or equal to M1; and/or the second network device receives the first M2-N2 coordinate components in the second direction of the corrected first coordinate sent by the first network device The bit on the bit position, receiving the bit on the last N2 bits of the coordinate component of the first coordinate in the second direction sent by the first network device, where M2 is the third value, and M2 is a positive integer , N2 is a positive integer less than or equal to M2.
  • the component of the distance between the second network device and the first network device in the first direction may satisfy the following formula:
  • the component of the distance between the second network device and the first network device in the second direction may satisfy the following formula: Where d x represents the component of the distance between the second network device and the first network device in the first direction, Represents the component of the second coordinate in the first direction, Represents the coordinate component of the first coordinate in the first direction (corrected), D unit represents the first value, and d y represents the component of the distance between the second network device and the first network device in the second direction , Represents the component of the second coordinate in the second direction, Represents the coordinate component of the (corrected) first coordinate in the second direction.
  • the second network device can send indication information or feedback information to the first network device.
  • the second network device can send indication information or feedback information to the first network device. 2.
  • the network device may not send indication information or feedback information to the first network device, thereby saving transmission resources.
  • the second network device may also obtain the location coordinates of the first network device according to the location coordinates of the second network device, the corrected first coordinates, and the second coordinates, so that the second network device determines the first After the location coordinates of a network device, operations such as prediction, decision-making, and scheduling can be facilitated.
  • the coordinate vector of the position coordinate of the first network device in the first direction satisfies the following formula:
  • the coordinate vector of the position coordinate of the first network device in the second direction satisfies the following formula: among them, Represents the coordinate component of the location coordinate of the first network device in the first direction, x R represents the component of the location coordinate of the second network device in the first direction, Represents the component of the second coordinate in the first direction, Represents the coordinate component of the (corrected) first coordinate in the first direction, D unit represents the first value, Represents the coordinate component of the location coordinate of the first network device in the second direction, y R represents the component of the second location coordinate in the second direction, Represents the component of the second coordinate in the second direction, Represents the coordinate component of the (corrected) first coordinate in the second direction.
  • a communication device is provided.
  • the communication device is equipped with a first network that implements any one of the foregoing first, second, and first aspects, or any one of the second aspects.
  • the communication device may be a handheld terminal device, a vehicle-mounted terminal device, a vehicle user equipment, or a device included in the terminal device, such as a chip, or a device including a terminal device, or a base station.
  • the functions of the above-mentioned network device may be realized by hardware, or may be realized by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the structure of the communication device includes a processing module and a transceiver module, wherein the processing module is configured to support the communication device to perform any one of the first aspect, the second aspect, and the first aspect.
  • the transceiver module is used to support the communication between the communication device and other communication devices, and to obtain the position coordinates of the communication device. For example, when the communication device is the first network device, it can send the (modified) first network device to the second network device.
  • the communication device may also include a storage module, which is coupled with the processing module, which stores program instructions and data necessary for the communication device.
  • the processing module may be a processor
  • the communication module may be a transceiver
  • the storage module may be a memory.
  • the memory may be integrated with the processor or may be provided separately from the processor, which is not limited in this application.
  • the structure of the communication device includes a processor and may also include a memory.
  • the processor is coupled with the memory, and can be used to execute computer program instructions stored in the memory, so that the communication device executes any of the foregoing first aspect, second aspect, and any one of the possible implementations of the first aspect or any one of the second aspect.
  • the communication device further includes a communication interface, and the processor is coupled with the communication interface.
  • the communication interface may be a transceiver or an input/output interface; when the communication device is a chip included in a network device, the communication interface may be an input/output interface of the chip.
  • the transceiver may be a transceiver circuit, and the input/output interface may be an input/output circuit.
  • an embodiment of the present application provides a chip system, including: a processor, the processor is coupled with a memory, the memory is used to store a program or an instruction, the chip system may further include an interface circuit, the interface circuit Used to receive code instructions and transmit them to the processor; when the program or instructions are executed by the processor, the chip system is made to implement any one of the above-mentioned first, second, and first aspects or The method in any possible implementation of the second aspect.
  • processors in the chip system there may be one or more processors in the chip system.
  • the processor can be implemented by hardware or software.
  • the processor may be a logic circuit, an integrated circuit, or the like.
  • the processor may be a general-purpose processor, which is implemented by reading software codes stored in the memory.
  • the memory may be integrated with the processor, or may be provided separately from the processor, which is not limited in this application.
  • the memory may be a non-transitory processor, such as a read-only memory ROM, which may be integrated with the processor on the same chip, or may be set on different chips.
  • the setting method of the processor is not specifically limited.
  • an embodiment of the present application provides a computer-readable storage medium, which stores computer-readable instructions.
  • the computer reads and executes the computer-readable instructions, the computer executes the first Aspect, the second aspect, any possible implementation manner of the first aspect, or any possible implementation manner of the second aspect.
  • the embodiments of the present application provide a computer program product.
  • the computer reads and executes the computer program product, the computer executes any one of the above-mentioned first aspect, second aspect, and first aspect. Or a method in any possible implementation of the second aspect.
  • an embodiment of the present application provides a communication system, which includes the foregoing first network device and second network device.
  • the communication system may also include other network devices.
  • Figure 1 is a schematic diagram of indicating location information based on an area
  • Figure 2 is a schematic diagram of an application scenario to which an embodiment of the application is applicable;
  • FIG. 3 is a schematic diagram of a communication scenario to which an embodiment of this application applies;
  • FIG. 4 is a schematic flowchart of a method for obtaining location information applicable to an embodiment of this application
  • FIG. 5 is a schematic diagram of a position information indication applicable to an embodiment of this application.
  • FIG. 6 is a schematic diagram of a distance determination applicable to an embodiment of this application.
  • FIG. 7 is a schematic structural diagram of a communication device to which an embodiment of this application is applicable.
  • FIG. 8 is a schematic diagram of another structure of a communication device to which an embodiment of this application is applicable.
  • 4G 4th Generation
  • 4G systems including LTE systems
  • WiMAX worldwide interoperability for microwave access
  • 5G systems such as NR
  • future communication systems such as 6G systems.
  • the technical solutions of the embodiments of the present application can be applied to unmanned driving (unmanned driving), driver assistance (ADAS), intelligent driving (intelligent driving), connected driving, and intelligent network driving (Intelligent Network Driving). ), car sharing, smart/intelligent car, digital car, unmanned car/driverless car/pilotless car/automobile, internet of vehicles (IoV) , Automatic vehicles (self-driving car, autonomous car), cooperative vehicle infrastructure (CVIS), intelligent transportation (intelligent transport system, ITS), vehicle communication (vehicular communication) and other technical fields.
  • unmanned driving unmanned driving
  • ADAS driver assistance
  • intelligent driving intelligent driving
  • connected driving and intelligent network driving
  • Intelligent Network Driving Intelligent Network Driving
  • the technical solutions provided in the embodiments of the present application can be applied to a cellular link, and can also be applied to a link between devices, such as a device to device (D2D) link or a V2X link.
  • D2D link or V2X link can also be called side link, auxiliary link or side link.
  • the above-mentioned terms can be used for links established between devices of the same type, or can also be applied to links established between devices of different types.
  • the reception is not limited. Whether the end network device and the sending end network device are of the same type.
  • the so-called devices of the same type can be the link between the terminal device and the terminal device, the link between the base station and the base station, and the link between the relay node and the relay node.
  • This application The embodiment does not limit this.
  • the so-called different types of equipment can be the link between the terminal equipment and the base station, or the link between the base station and the terminal equipment.
  • D2D links defined by 3GPP version (Rel)-12/13, and there are also car-to-car, car-to-mobile, or car-to-any entity defined by 3GPP for the Internet of Vehicles.
  • V2X link including Rel-14/15. It also includes the V2X link based on the NR system of Rel-16 and subsequent versions that are currently being studied by 3GPP.
  • Network equipment including network equipment such as terminal equipment and base stations.
  • AN access network
  • AP access point
  • a device that communicates with a wireless terminal device, or, for example, a network device in a V2X technology is a roadside unit (RSU).
  • the base station can be used to convert received air frames and Internet Protocol (IP) packets into each other, and act as a router between the terminal device and the rest of the access network, where the rest of the access network may include an IP network.
  • IP Internet Protocol
  • the RSU can be a fixed infrastructure entity that supports V2X applications, and can exchange messages with other entities that support V2X applications.
  • the network equipment can also coordinate the attribute management of the air interface.
  • the network equipment may include an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in a long term evolution (LTE) system or an evolved LTE system (LTE-advanced, LTE-A), or It can also include the next generation node B (gNB) in the 5G NR system, or it can also include the centralized unit (CU) and distributed unit in the cloud radio access network (CloudRAN) system.
  • a distributed unit (DU) is not limited in the embodiment of the present application.
  • the network device may also include terminal devices, including devices that provide users with voice and/or data connectivity, such as handheld devices with wireless connection functions, or processing devices connected to wireless modems.
  • the terminal device can communicate with the core network via a radio access network (RAN), and exchange voice and/or data with the RAN.
  • the terminal equipment may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), mobile station (mobile), remote Station (remote station), remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), or user equipment (user device), etc.
  • it may include mobile phones (or “cellular” phones), computers with mobile terminal equipment, portable, pocket-sized, handheld, computer-built mobile devices, smart wearable devices, and so on.
  • PCS personal communication service
  • PCS cordless phones
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistants
  • restricted devices such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities. Examples include barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanners and other information sensing equipment.
  • RFID radio frequency identification
  • GPS global positioning system
  • laser scanners and other information sensing equipment.
  • the terminal device may also be a wearable device or the like.
  • Wearable devices can also be called wearable smart devices. It is a general term for using wearable technology to intelligently design everyday wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • Use such as all kinds of smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.
  • the various terminal devices described above if they are located on the vehicle (for example, placed in the vehicle or installed in the vehicle), can be regarded as vehicle-mounted terminal equipment, for example, the vehicle-mounted terminal equipment is also called on-board unit (OBU). ); If it is located on a roadside terminal device (for example, placed in a roadside unit or installed in a roadside unit), it can be regarded as a roadside terminal device.
  • the roadside terminal device is also called a roadside unit (roadside unit, RSU).
  • the terminal device of the present application may also be a vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip, or vehicle-mounted unit built into a vehicle as one or more components or units. The vehicle passes through the built-in vehicle-mounted module, vehicle-mounted module, On-board components, on-board chips, or on-board units can implement the method of the present application.
  • Transmission link including the side link between two terminal devices, and the uplink and downlink between the terminal device and the base station, etc.
  • a side link which may also be called a side link or an auxiliary link, etc.
  • the embodiment of the present application does not limit this name.
  • the side link is a direct link connection between two V2X terminals, and the V2X terminal is a terminal with V2X functions, such as the aforementioned terminal equipment or base station.
  • SL transmission the data transmission of two V2X terminals on the side link is called SL transmission.
  • a side link connection can be established.
  • the V2X terminal as the initiator sends a request to establish a side link connection to a network device. If the network device agrees to the V2X terminal to establish a side link connection, it will send configuration information for establishing a side link connection to the V2X terminal. , The V2X terminal establishes a side link connection with another V2X terminal according to the configuration information sent by the network device.
  • Feedback information including the feedback information that the network device needs to receive and/or the feedback information that needs to be sent, where the feedback information that the network device needs to receive is sent to the network device by other devices, and the feedback information that the network device needs to send is sent by the network device Send to other devices.
  • other devices may be other network devices or base stations.
  • the specific feedback information includes hybrid automatic repeat request (HARQ) feedback information and so on.
  • HARQ hybrid automatic repeat request
  • “Multiple” refers to two or more than two. In view of this, “multiple” may also be understood as “at least two” in the embodiments of the present application. "At least one” can be understood as one or more, for example, one, two or more. For example, including at least one means including one, two or more, and it does not limit which ones are included. For example, if at least one of A, B, and C is included, then A, B, C, A and B, A and C, B and C, or A and B and C are included. In the same way, the understanding of "at least one" and other descriptions is similar.
  • ordinal numbers such as “first” and “second” mentioned in the embodiments of this application are used to distinguish multiple objects, and are not used to limit the order, timing, priority, or importance of multiple objects. Moreover, the descriptions of “first” and “second” do not limit the objects to be different.
  • Wireless communication technology has experienced rapid development. It has successively experienced the first generation of wireless communication systems based on analog communication systems, and the 2G wireless communication system represented by the global system for mobile communication (GSM).
  • GSM global system for mobile communication
  • WCDMA wideband code division multiple access
  • LTE long term evolution
  • the business supported by the wireless communication system has evolved from the initial voice and short message to now support wireless high-speed data communication.
  • the number of wireless connections is continuously increasing at a high speed, and new types of wireless services are also emerging in large numbers, such as the Internet of Things, autonomous driving, etc., which put forward higher requirements for future wireless communication systems (such as 5G systems).
  • the Internet of Things is a network that is extended and expanded on the basis of the Internet provided by the communication system. It can collect any needs through various devices and technologies such as various information sensors, radio frequency identification technology, global positioning system, infrared sensors, laser scanners, etc.
  • the core and foundation of the Internet of Things is still the Internet, which is a network extended and expanded on the basis of the Internet, and its user end extends and extends to any information exchange and communication between things.
  • the application field of the Internet of Things involves all aspects, such as the application in intelligent transportation.
  • the Internet of Vehicles mainly refers to the vehicle-mounted equipment on the vehicle through wireless communication technology to effectively route the dynamic information of all vehicles in the information network platform, and provide different functional services during vehicle operation, aiming to improve vehicle safety, automated driving, and Improve traffic efficiency.
  • the realization of the Internet of Vehicles mainly relies on the V2X technology.
  • the core of the V2X technology is to realize the interconnection between the vehicle and everything, and it is mainly applied in the vehicle to everything (V2X) scenario.
  • V2X specifically includes vehicle-to-vehicle (V2V) (as shown in Figure 2(a)), vehicle-to-pedestrian (V2P) ( Figure 2(a)).
  • V2V refers to the communication between vehicles
  • V2P refers to the communication between vehicles and people (including pedestrians, cyclists, drivers, or passengers)
  • V2I refers to the communication between the vehicle and the roadside unit (RSU)
  • V2N refers to the communication between the vehicle and the roadside unit (RSU). It is the communication between the vehicle and the base station/network.
  • the vehicle can obtain information about the surrounding road conditions in real time, so as to better assist the vehicle driving and even realize automatic driving.
  • V2X communication includes high-speed mobile devices represented by vehicles
  • typical application scenarios include smart cars, autonomous driving, remote driving, intelligent transportation systems, etc.
  • these application scenarios have very high requirements for positioning accuracy. Most of them require positioning accuracy below 1 meter, so higher requirements are put forward on traditional positioning technology.
  • 3GPP proposed LTE V2X, which initially supports the basic V2X communication requirements.
  • LTE cannot provide sufficient support for the current V2X positioning requirements, especially the relative positioning requirements between cars and pedestrians.
  • 5G NR V2X will also be further developed. For example, it can support lower positioning delay and more precise user positioning services to meet the needs of a wider range of application scenarios.
  • the vehicle terminal can transmit its own information to surrounding vehicles or roadside units through unicast, groupcast or broadcast.
  • unicast communication one sending end network device corresponds to one receiving end network device.
  • one sending-end network device corresponds to multiple receiving-end network devices.
  • the receiving-end network device is usually required to send HARQ feedback. However, if all receivers All network devices send HARQ feedback, which will bring great overhead to the system.
  • One method is to use distance-based HARQ feedback, as long as it is ensured that the receiving end network equipment that is closer can successfully receive the data. Specifically, when the distance between the receiving end network device and the sending end network device is less than or equal to the set distance threshold, the receiving end network device sends HARQ feedback, otherwise, the receiving end network device does not send HARQ feedback to the sending end network device.
  • the distance between the receiving end network device and the sending end network device is calculated by the receiving end network device according to its own location information and the location information of the sending end network device.
  • the location information of the sending end network device is sent to the receiving end by the sending end network device. Internet equipment.
  • the location information of the network device can be the absolute latitude and longitude of the network device, or it can be the absolute location coordinates converted from the absolute latitude and longitude. Therefore, the location information of the network device generally has a large range and high accuracy, but it will also cause high cost. Therefore, the zone division method in the LTE V2X system is used to indicate the location of network equipment. As shown in Figure 1, longitude and latitude form a coordinate system, and the direction of longitude is the x-axis in the coordinate system.
  • the same direction that is, longitude is used to indicate the x axis of the coordinate system
  • the direction of latitude is the same as the direction of the y axis (also called “vertical axis") in the coordinate system, that is, latitude is used to indicate coordinates
  • the y axis of the system Divide the coordinate system into multiple zones, and give each zone a number, that is, each zone has a zone ID (also called “zone_id”), and the zone ID is generated according to the following formula:
  • zone_id y 1 *N x +x 1
  • Longitude represents longitude
  • Latitude represents latitude
  • x and y represent absolute position coordinates converted from latitude and longitude
  • L and W represent the length and width of the zone
  • Nx and Ny are the modulus of zone ID in the direction of latitude and longitude
  • x 1 and y 1 is the middle amount
  • zone_id represents the zone number.
  • the sending end network device calculates the zone ID of its own area and sends the zone ID to the receiving end network device.
  • the receiving end network device determines the sending end network device according to the received zone ID. To calculate the distance between it and the sending end network device.
  • zone is mainly used for resource allocation.
  • network devices in the same zone ID that is, in the same area
  • network devices in adjacent zones communicate with different resources to avoid conflicts.
  • the length and width of the zone are large, and when the position is indicated based on the zone, the accuracy depends on the length and width of the zone. This leads to the location information sent by the sending end network device when the location is indicated. The accuracy is relatively low.
  • the zone ID is multiplexed, resulting in the same zone ID sent by the sending-end network device at different locations. For example, the sending-end network device at position 0 sends its own zone ID as 2.
  • the receiving-end network device When the receiving-end network device receives a zone ID with a value of 2, it may determine that the sending-end network device is in position 1 or position 0, causing the receiving-end network device to be unable to accurately determine the location of the sending-end network device. Therefore, when the location information is indicated by the zone ID, there will be problems of low indication accuracy and ambiguity in the indication.
  • this application proposes a location information acquisition method to compare the sending end
  • the location coordinates of the network device are limited to a certain value range, so that the location information can be indicated relatively accurately and without ambiguity, and it can be ensured that the overhead is not too high when indicating the location information.
  • the embodiment of the present application provides a method for acquiring location information, which can be applied to the communication scenarios shown in FIG. 2 and FIG. 3.
  • the specific process of the location information acquisition method will be described in detail below with reference to FIG. 4. As shown in Figure 4, the process includes:
  • Step 401 The first network device obtains the position coordinates of the first network device.
  • the first network device can be regarded as the sending end network device.
  • the specific sending end network device includes terminal equipment and/or base station.
  • the sending end network device is generally a mobile device, such as a mobile phone or a vehicle. Wait.
  • the location coordinates of the first network device can be used to indicate the longitude and latitude of the location of the first network device. It can also be said that the location coordinates of the first network device are related to the longitude and latitude of the location of the first network device.
  • the location coordinates of the first network device include The coordinate component of the position coordinate of the first network device in the first direction and/or the position coordinate of the first network device is the coordinate component in the second direction.
  • the first network device may obtain the longitude and latitude information of the first network device through the global positioning system (GPS) module of the first network device, and then determine the location coordinates of the first network device according to the longitude and latitude information, for example, the first network device
  • the network device converts the obtained longitude and latitude information into absolute position coordinates (x T , y T ), where (x T , y T ) is the position coordinate of the first network device, where x T is the position coordinate of the first network device
  • the coordinate component in the first direction, y T is the coordinate component of the position coordinate of the first network device in the second direction.
  • the first direction may be the longitude direction or the horizontal axis direction in the coordinate system
  • the second direction may be the latitude direction or the vertical axis direction in the coordinate system.
  • the coordinate system is composed of longitude and latitude.
  • the position coordinates of the first network device may be obtained in the following situations:
  • the first network device can obtain the location coordinates of the first network device in real time
  • the first network device may obtain the location coordinates of the first network device when determining that it needs to send location information to the second network device. For example, the first network device may determine that it needs to send location information to the second network device after sending the instruction information to the second network device, or the first network device may determine that it needs to send the location information to the second network device when the agreed time point is reached. The device sends location information, etc.
  • Step 402 The first network device performs a modulo operation on the position coordinates of the first network device by using a first value as a modulus to obtain the first coordinate, where the first value and the first network device and the first network device It is related to the maximum distance that the second network device can communicate.
  • the first network device performs a modulo operation on the location coordinates of the first network device using the first value as the modulus, and the location coordinates of the first network device can be limited to the value range corresponding to the first value, so that it can be relatively accurate
  • the location information is indicated without ambiguity, and the overhead is not too high when indicating the location information.
  • the first value is related to the maximum distance over which the first network device and the second network device can communicate.
  • the second network device can be regarded as the receiving end network device.
  • the specific receiving end network device includes terminal equipment and/or base station.
  • the receiving end network device can be a mobile device, such as a mobile phone, or Vehicles, etc., can also be base stations.
  • the first value is greater than or equal to 2D max , D max is the maximum distance that the first network device and the second network device can communicate, and D max is any real number. If the distance between the first network device and the second network device is greater than D max , the second network device cannot correctly decode the data sent by the first network device.
  • the first value can be determined in one or more of the following ways:
  • the maximum distance at which the receiving end network device can correctly decode the distance sent by the sending end network device can be an empirical value Or actual measured value;
  • the first value is n times D min , where n is any real number.
  • the value range of n is [2, 10], that is, n is greater than or equal to 2 and less than or equal to 10, the value range of n is only an example, and other possible value ranges are not excluded in the embodiments of this application; the standard defines the minimum value corresponding to each service for different services.
  • the communication distance D min then for different services, it is also possible to determine the first value corresponding to each type of service.
  • the preset value is any real number.
  • the first value can be represented by D unit , and D unit is greater than or equal to 2D max , the position coordinates of the first network device are (x T , y T ), and the position coordinates of the first network device to the first network device are The first value is the modulus for value calculation, the first coordinate obtained is
  • the first coordinate includes a coordinate component of the first coordinate in a first direction and/or a coordinate component of the first coordinate in a second direction, Satisfy x T Mod D unit , such as Or the deformation formula of x T Mod D unit, Satisfy y T Mod D unit , such as Or the deformation formula of y T Mod D unit, where Is the coordinate component of the first coordinate in the first direction, Is the coordinate component of the first coordinate in the second direction.
  • Step 403 The first network device corrects the first coordinate.
  • the first network device corrects the first coordinate obtained in step 402.
  • the correction process can also be regarded as a quantization process of the first coordinate.
  • the correction process can convert the corrected first coordinate into a corresponding binary number, which is convenient for digital Transmission in the communication system.
  • the first network device may correct the coordinate component of the first coordinate in the first direction according to the second value; and/or the first network device The coordinate component of the first coordinate in the second direction may be corrected according to the third value.
  • the first network device corrects the coordinate component of the first coordinate in the first direction according to the second value.
  • the first network device corrects the coordinate component of the first coordinate in the second direction according to the third value.
  • the first network device corrects the coordinate component of the first coordinate in the first direction according to the second value, and corrects the coordinate component of the first coordinate in the second direction according to the third value.
  • the second value is related to the number of bits available for sending the coordinate component of the first coordinate in the first direction (corrected). It can also be said that it is allowed when sending the coordinate component of the first coordinate in the first direction (corrected)
  • the number of bits used, or the number of bits that are allowed to be used when the coordinate component of the first coordinate in the first direction is sent (corrected).
  • the second value can be represented by M1, M1 is a positive integer
  • the third value It is related to the number of bits available for sending the coordinate component of the first coordinate in the second direction (corrected).
  • the third value can be represented by M2.
  • M2 is a positive integer, which can also be said to be sending (corrected) the first coordinate.
  • the second value M1 and the third value M2 can be pre-configured or configured through high-level signaling.
  • the value range of the second value M1 can be [0, 8], that is, M1 is greater than or equal to 2 and less than or A real number equal to 8, the value range of M1 is only an example, and other possible value ranges are not excluded in the embodiment of this application.
  • the value range of the third value M2 and the value range of the second value M1 may be the same Or different.
  • the first coordinate is The first network device corrects the first coordinate to obtain the corrected first coordinate
  • the corrected first coordinate includes the coordinate component of the corrected first coordinate in the first direction and/or the coordinate component of the corrected first coordinate in the second direction, Satisfy Such as or The deformation formula, Satisfy Such as or The deformation formula of, Floor represents the operation of rounding down, where Is the coordinate component of the corrected first coordinate in the first direction, Is the coordinate component of the corrected first coordinate in the second direction.
  • Step 404 The first network device sends the corrected first coordinates to the second network device, and the second network device receives the corrected first coordinates sent by the first network device.
  • the first network device sends the bits in the first M1-N1 bits of the coordinate component of the first coordinate in the first direction to the second network device, and sends the bits in the last N1 bits to the second network device.
  • Bits are sent to the second network device, where M1 is a second value, M1 is a positive integer, and N1 is a positive integer greater than or equal to 0 and less than or equal to M1; and/or the first network device will be corrected
  • M2 is The third value, M2 is a positive integer, and N2 is a positive integer greater than or equal to 0 and less than or equal to M2.
  • the first network device sends the bits in the first M1-N1 bits of the coordinate component of the first coordinate in the first direction to the second network device through the transport layer, and sends the bits in the last N1 bits to the second network device.
  • the bits are sent to the second network device through the link layer; and/or the first network device sends the bits in the first M2-N2 bits of the coordinate component of the corrected first coordinate in the second direction through the transmission layer to The second network device sends the bits on the last N2 bits to the second network device through the link layer.
  • the first M1-N1 bits can be bits indexed from 0 to M1-N1-1
  • the last N1 bits can be bits indexed from M1-N1 to M1-1
  • the first M2-N2 bits It can be a bit with an index from 0 to M2-N2-1
  • the last N2 bits can be a bit with an index from M2-N2 to M2-1.
  • the location information of the sending end network device can be periodically updated. Since the location of the sending end network device changes regularly, there will be no jumps, so the high bit ( Including the bits on the first M1-N1 bits and/or the bits on the first M2-N2 bits) compared to the lower bits (including the bits on the last N1 bits and/or the bits on the last N2 bits) Bit) changes slowly, and the update frequency is slow. Therefore, it is possible to combine the low-order bits (including the bits on the last N1 bits and/or the bits on the last N2 bits) and the high-order bits (including the first M1-N1 bits). The bits on the bit positions and/or the bits on the first M2-N2 bits are separately indicated, which saves transmission resources on the basis of ensuring accurate indication of the position information of the sender.
  • the second network device receives the first M1-N1 bits of the coordinate component of the corrected first coordinate in the first direction sent by the first network device, and receives the first network device sent by the first network device.
  • the first coordinate is the last N2 bits of the coordinate component in the second direction, where M2 is a third value, M2 is a positive integer, and N2 is a positive integer less than or equal to M2.
  • the second network device receives the first M1-N1 bits of the coordinate component of the corrected first coordinate in the first direction sent by the first network device through the transmission layer, and receives the first network device through the link The first N1 bits of the coordinate component in the first direction of the corrected first coordinate sent by the layer; and/or the second network device receives the corrected first coordinate sent by the first network device through the transmission layer
  • the first M2-N2 bits in the coordinate component in the second direction receive the modified first coordinate sent by the first network device through the link layer and the last N2 bits in the coordinate component in the second direction The bit on the bit.
  • the transport layer includes the radio resource control (RRC) layer
  • the link layer includes the sidelink control information (SCI) layer or the uplink control information (UCI) layer, as shown in the figure
  • the bits on the first M1-N1 bits are transmitted through the RRC layer
  • the bits on the last N1 bits are transmitted through the SCI layer or the UCI layer.
  • sending the corrected first coordinate through the transmission layer and/or link layer in the embodiment of the present application is only an example provided, and the actual sending of the corrected first coordinate is not limited to the transmission layer. And/or link layer.
  • Step 405 The second network device obtains the position coordinates of the second network device.
  • the location coordinates of the second network device may be represented by (x R , y R ), and the location coordinates of the second network device include the component of the location coordinates of the second network device in the first direction and/or the location coordinates of the second network device The component in the second direction, where x R is the component of the position coordinate of the second network device in the first direction, and y R is the component of the position coordinate of the second network device in the second direction.
  • Step 406 The second network device performs a modulo operation on the position coordinates of the second network device by using a first value as a modulus to obtain a second coordinate, where the first value and the first network device and the first network device The maximum distance that the second network device can communicate is related to.
  • the second coordinate can be used Indicates that the second coordinate includes the component of the second coordinate in the first direction and/or the component of the second coordinate in the second direction, Satisfy x R Mod D unit , such as Or the deformation formula of x R Mod D unit, Satisfy y R Mod D unit , such as or The deformation formula of, where Is the component of the second coordinate in the first direction, Is the component of the second coordinate in the second direction.
  • step 404 can be performed first, and then step 405 and step 406 can be performed in sequence, or step 405 and step 406 can be performed in sequence first.
  • step 404 is executed again, or step 405 may be executed first, and then step 404 and step 406 are executed in sequence.
  • Step 407 The second network device obtains the distance between the second network device and the first network device according to the corrected first coordinate and the second coordinate.
  • the distance between the second network device and the first network device includes: the component of the distance between the second network device and the first network device in the first direction and/or the distance between the second network device and the first network device The component of the distance in the second direction.
  • the calculation process of the component of the distance between the second network device and the first network device in the first direction is the same as the calculation process of the component of the distance between the second network device and the first network device in the second direction, Can be calculated separately.
  • the component of the distance between the second network device and the first network device in the first direction can be represented by d x
  • the component of the distance between the second network device and the first network device in the second direction can be represented by d y Said.
  • Figure 6 taking the first direction as an example, and segmenting in the first direction with D unit as the unit, that is, the length of each segment is D unit
  • Figure 6 (a ) the component of the second coordinate in the first direction and the component of the corrected first coordinate in the first direction satisfy
  • the actual distance between the first network device and the second network device in the first direction can be
  • Figure 6(b) the component of the second coordinate in the first direction and the component of the corrected first coordinate in the second direction satisfy Indicates that the first network device and the second network device are located in different segments.
  • the component d x of the distance between the second network device and the first network device in the first direction satisfies As in with When the absolute value of the difference is less than D unit /2, or The deformation formula of with When the absolute value of the difference is greater than or equal to D unit /2, or The deformation formula.
  • the component d y of the distance between the second network device and the first network device in the second direction satisfies As in with When the absolute value of the difference is less than D unit /2, or The deformation formula of with When the absolute value of the difference is greater than or equal to D unit /2, or The deformation formula.
  • the second network device determines that the component d x of the distance between the second network device and the first network device in the first direction and the distance between the second network device and the first network device in the second direction After the component d y of, the actual straight-line distance between the second network device and the first network device can be determined
  • the second network device optionally, after the second network device obtains the distance between the second network device and the first network device, if it is determined that the distance between the second network device and the first network device is less than Or equal to the distance threshold, the second network device sends indication information or feedback information to the first terminal device, and the feedback information includes HARQ, ACK, or NACK.
  • the second network device in addition to acquiring the location information of the second network device, the second network device can also determine the location information of the first network device to perform operations such as predictive decision-making and scheduling. For example, the second network device can determine the location information of the second network device according to the second network device. The location coordinates of the network device, the corrected first coordinates and the second coordinates, to obtain the location coordinates of the first network device.
  • Fig. 6 taking the first direction as an example.
  • the first network device and the second network device are located in the same segment, and the position coordinates of the first network device Coordinate vector in the first direction Can be
  • the first network device and the second network device are located in different segments.
  • Situation and Case in case Indicates the segment where the first network device is located on the left side of the second network device (left and right as shown in Figure 6), so Can be in case Indicates the segment where the first network device is located on the right side of the second network device (left and right as shown in Figure 6), so Can be
  • the coordinate vector in the first direction of the position coordinate of the first network device determined by the second network device Satisfy As in with When the absolute value of the difference is less than D unit /2, or The deformation formula of with The absolute value of the difference is greater than or equal to D unit /2 and Less than Time, or The deformation formula of with The absolute value of the difference is greater than or equal to D unit /2 and greater than or equal to Time, or The deformation formula.
  • the deformation formula of with The absolute value of the difference is greater than or equal to D unit /2 and Less than Time, or The deformation formula of with The absolute value of the difference is greater than or equal to D unit /2 and greater than or equal to Time, or The deformation formula.
  • the first network device is used as the transmitting end network device
  • the second network device is used as the receiving end network device as an example.
  • the first network device may be the receiving end network device.
  • the end network device, and the second terminal device may also be the sending end network device.
  • the communication system may also include more network devices, such as a third network device, a fourth network device, etc., and the number of network devices is not specified in the embodiment of this application. limit.
  • the embodiment of the present application also provides a communication device, as shown in FIG.
  • the communication device 700 includes: a processing module 701 and a transceiver module 702.
  • the communication device can be used to implement the functions related to the first network device or the second network device in any of the foregoing method embodiments.
  • the communication device may be a handheld terminal device, a vehicle-mounted terminal device, a vehicle user equipment, or a chip included in the terminal device, or the communication device may be a vehicle-mounted device, such as a vehicle-mounted module or a vehicle-mounted unit built in the vehicle, Or the communication device is a base station or the like.
  • the apparatus 700 is applied to a first network device.
  • the transceiver module 702 is configured to obtain the position coordinates of the first network device
  • the processing module 701 is configured to perform a modulo operation on the position coordinates of the first network device using a first value as a modulus to obtain a first coordinate, where the first value is the same as the first network device and the first network device. 2. It is related to the maximum distance that the network device can communicate; correcting the first coordinate;
  • the transceiver module 702 is further configured to send the corrected first coordinates to the second network device.
  • the first value is greater than or equal to 2Dmax, where Dmax is the maximum distance over which the first network device and the second network device can communicate.
  • the processing module 701 is specifically configured to correct the coordinate component of the first coordinate in the first direction according to a second value, where the second value and the sending of the first coordinate are The coordinate component in the first direction is related to the number of available bits; and/or the coordinate component of the first coordinate in the second direction is corrected according to a third value, wherein the third value is related to sending the first coordinate The number of bits available for the coordinate component in the second direction is related.
  • the transceiver module 702 is specifically configured to send the first M1-N1 bits in the coordinate component of the first coordinate in the first direction after the correction to the second network device, and send the second network device to the second network device.
  • the bits on N1 bits are sent to the second network device, where M1 is the second value, M1 is a positive integer, and N1 is a positive integer less than or equal to M1; and/or the corrected first coordinate is in the first
  • M2 is the third value, and M2 Is a positive integer, and N2 is a positive integer less than or equal to M2.
  • the apparatus 700 is applied to a second network device.
  • the transceiver module 702 is configured to receive the corrected first coordinates sent by the first network device; obtain the position coordinates of the second network device;
  • the processing module 701 is configured to perform a modulo operation on the position coordinates of the second network device using a first value as a modulus to obtain a second coordinate, where the first value is the same as the first network device and the The maximum distance at which the second network device can communicate is related; the distance between the second network device and the first network device is obtained according to the corrected first coordinate and the second coordinate.
  • the first value is greater than or equal to 2Dmax, where Dmax is the maximum distance over which the first network device and the second network device can communicate.
  • the corrected first coordinate includes the coordinate component of the first coordinate corrected according to the second value in the first direction and/or the coordinate component of the first coordinate corrected according to the third value in the second direction.
  • the transceiver module 702 is specifically configured to receive the first M1-N1 bits in the coordinate component of the corrected first coordinate in the first direction sent by the first network device, and receive the first The bits in the last N1 bits of the coordinate component in the first direction of the corrected first coordinate sent by the network device, where M1 is the second value, M1 is a positive integer, and N1 is a positive value less than or equal to M1.
  • the first coordinate is the last N2 bits of the coordinate component in the second direction, where M2 is the third value, M2 is a positive integer, and N2 is a positive integer less than or equal to M2.
  • the component of the distance between the second network device and the first network device in the first direction satisfies the following formula:
  • d x represents the component of the distance between the second network device and the first network device in the first direction
  • D unit represents the first value
  • d y represents that the distance between the second network device and the first network device is in the second Component in direction
  • the processing module 701 is further configured to obtain the position coordinates of the first network device according to the position coordinates of the second network device, the corrected first coordinates, and the second coordinates.
  • the coordinate vector of the position coordinate of the first network device in the first direction satisfies the following formula:
  • x R represents the component of the location coordinate of the second network device in the first direction
  • D unit represents the first value
  • y R represents the component of the second location coordinate in the second direction
  • the processing module 701 involved in the communication device may be implemented by a processor or processor-related circuit components, and may be a processor or a processing unit; the transceiver module 702 may be implemented by a transceiver or transceiver-related circuit components, and may be a transceiver or a transceiver. unit.
  • the operation and/or function of each module in the communication device is to realize the corresponding process of the method shown in FIG. 4, and for the sake of brevity, it will not be repeated here.
  • FIG. 8 is a schematic diagram of another structure of a communication device provided in an embodiment of this application.
  • the communication device may specifically be a network device, specifically a terminal device or a base station. It is easy to understand and easy to illustrate.
  • the communication device uses a vehicle as an example.
  • the network device includes a processor, and may also include a memory. Of course, it may also include a radio frequency circuit, an antenna, and an input/output device.
  • the processor is mainly used to process communication protocols and communication data, control network devices, execute software programs, and process data in software programs.
  • the memory is mainly used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of baseband signal and radio frequency signal and the processing of radio frequency signal.
  • the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of network equipment may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • FIG. 8 only one memory and processor are shown in FIG. 8. In actual network equipment products, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or storage device.
  • the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.
  • the antenna and radio frequency circuit with the transceiving function can be regarded as the transceiving unit of the network device
  • the processor with the processing function can be regarded as the processing unit of the network device.
  • the network device includes a transceiver unit 801 and a processing unit 802.
  • the transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, and so on.
  • the processing unit may also be called a processor, a processing board, a processing module, a processing device, and so on.
  • the device for implementing the receiving function in the transceiver unit 801 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiver unit 801 as the sending unit, that is, the transceiver unit 801 includes a receiving unit and a sending unit.
  • the transceiver unit may sometimes be called a transceiver, a transceiver, or a transceiver circuit.
  • the receiving unit may sometimes be called a receiver, a receiver, or a receiving circuit.
  • the transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.
  • transceiving unit 801 is used to perform the sending and receiving operations on the network device side in the above method embodiment, where the receiving operation includes obtaining the position coordinates on the network device side, and the processing unit 802 is used to perform the above method embodiment on the network device. In addition to receiving and sending operations other than other operations.
  • An embodiment of the present application further provides a chip system, including: a processor, the processor is coupled with a memory, the memory is used to store a program or instruction, when the program or instruction is executed by the processor, the The chip system implements the method in any of the foregoing method embodiments.
  • processors in the chip system there may be one or more processors in the chip system.
  • the processor can be implemented by hardware or software.
  • the processor may be a logic circuit, an integrated circuit, or the like.
  • the processor may be a general-purpose processor, which is implemented by reading software codes stored in the memory.
  • the memory may be integrated with the processor, or may be provided separately from the processor, which is not limited in this application.
  • the memory may be a non-transitory processor, such as a read-only memory ROM, which may be integrated with the processor on the same chip, or may be set on different chips.
  • the setting method of the processor is not specifically limited.
  • the chip system may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), or a system on chip (SoC). It can also be a central processor unit (CPU), a network processor (NP), a digital signal processing circuit (digital signal processor, DSP), or a microcontroller (microcontroller).
  • the controller unit, MCU may also be a programmable controller (programmable logic device, PLD) or other integrated chips.
  • each step in the foregoing method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • 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 embodiments of the present application also provide a computer-readable storage medium, which stores computer-readable instructions, and when the computer reads and executes the computer-readable instructions, the computer is caused to execute any of the above-mentioned method embodiments In the method.
  • the embodiments of the present application also provide a computer program product, which when the computer reads and executes the computer program product, causes the computer to execute the method in any of the foregoing method embodiments.
  • An embodiment of the present application also provides a communication system, which includes a first network device and a second network device.
  • the communication system may also include other network devices.
  • processors mentioned in the embodiments of this application may be a central processing unit (CPU), or may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), and application-specific integrated circuits (central processing unit, CPU).
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic RAM
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory synchronous DRAM, SDRAM
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous connection dynamic random access memory serial DRAM, SLDRAM
  • direct rambus RAM direct rambus RAM, DR RAM
  • the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component
  • the memory storage module
  • the size of the sequence numbers of the above-mentioned processes does not mean the order of execution.
  • the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or integrated. To another system, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may also be electrical, mechanical or other forms of connection.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments of the present application.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the computer-readable medium includes a computer storage medium and a communication medium, where the communication medium includes any medium that facilitates the transfer of a computer program from one place to another.
  • the storage medium may be any available medium that can be accessed by a computer.
  • computer readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage media or other magnetic storage devices, or can be used to carry or store instructions or data in the form of structure
  • Any connection can suitably become a computer-readable medium.
  • the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave
  • coaxial cable , Fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, wireless and microwave are included in the fixing of the media.
  • Disk and disc include compact discs (CD), laser discs, optical discs, digital versatile discs (DVD), floppy discs and Blu-ray discs. Disks usually copy data magnetically, while discs The laser is used to optically copy the data. The above combination should also be included in the protection scope of the computer-readable medium.

Landscapes

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

Abstract

La présente invention concerne un procédé et un appareil d'acquisition d'informations de position pouvant être appliqués à un système de communication tel V2X, LTE-V, V2V, l'Internet des véhicules, MTC, IoT, LTE-M, M2M et autres. Le procédé comprend les étapes au cours desquelles : un premier dispositif de réseau acquiert une coordonnée de position du premier dispositif de réseau ; le premier dispositif de réseau effectue l'opération modulo sur la coordonnée de position du premier dispositif de réseau en utilisant une première valeur à titre de module de manière à obtenir une première coordonnée, la première valeur étant associée à la distance maximale à laquelle le premier dispositif de réseau et un second dispositif de réseau peuvent communiquer ; le premier dispositif de réseau modifie la première coordonnée ; et le premier dispositif de réseau envoie la première coordonnée modifiée au second dispositif de réseau. Ainsi est-il possible d'obtenir l'indication relativement précise et non ambiguë de la coordonnée de position du premier dispositif de réseau et de s'assurer que le nombre de bits requis lors de l'envoi de la première coordonnée modifiée est petit et que le surdébit est faible.
PCT/CN2019/115147 2019-11-01 2019-11-01 Procédé et appareil d'acquisition d'informations de position WO2021082010A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/115147 WO2021082010A1 (fr) 2019-11-01 2019-11-01 Procédé et appareil d'acquisition d'informations de position

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/115147 WO2021082010A1 (fr) 2019-11-01 2019-11-01 Procédé et appareil d'acquisition d'informations de position

Publications (1)

Publication Number Publication Date
WO2021082010A1 true WO2021082010A1 (fr) 2021-05-06

Family

ID=75715739

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/115147 WO2021082010A1 (fr) 2019-11-01 2019-11-01 Procédé et appareil d'acquisition d'informations de position

Country Status (1)

Country Link
WO (1) WO2021082010A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160091612A1 (en) * 2014-09-30 2016-03-31 Hyundai Mobis Co., Ltd. Method for displaying a position of a vehicle
CN106559733A (zh) * 2015-09-25 2017-04-05 北京三星通信技术研究有限公司 V2x通信方法及装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160091612A1 (en) * 2014-09-30 2016-03-31 Hyundai Mobis Co., Ltd. Method for displaying a position of a vehicle
CN106559733A (zh) * 2015-09-25 2017-04-05 北京三星通信技术研究有限公司 V2x通信方法及装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
FUJITSU: "Dynamic Resource Selection for NR Sidelink", 3GPP DRAFT; R1-1910136 DYNAMIC RESOURCE SELECTION FOR NR SIDELINK, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Chongqing, China; 20191014 - 20191020, 8 October 2019 (2019-10-08), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051788943 *
FUJITSU: "Further Study on Tx-Rx Distance based HARQ Feedback", 3GPP DRAFT; R1-1906442 DISTANCE BASED HARQ FEEDBACK, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Reno, USA; 20190513 - 20190517, 2 May 2019 (2019-05-02), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, pages 1 - 8, XP051708477 *

Similar Documents

Publication Publication Date Title
US20220005354A1 (en) Request-response-based sharing of sensor information
US11244175B2 (en) Techniques for sharing of sensor information
RU2695094C1 (ru) Зависящий от скорости формат передачи для транспортного средства
WO2020221173A1 (fr) Procédé de communication et dispositif terminal
WO2020238428A1 (fr) Procédé et dispositif de communication
US12010018B2 (en) Wireless communication method and device
WO2020259525A1 (fr) Procédé et appareil de communication
WO2021204173A1 (fr) Procédé et appareil de détermination de ressources, et dispositif terminal
WO2020088366A1 (fr) Procédé et appareil de détermination de puissance d'émission
WO2020147916A1 (fr) Communication de véhicule à véhicule et de véhicule à réseau
WO2021018295A1 (fr) Appareil et procédé de transmission d'informations de rétroaction
WO2021092939A1 (fr) Procédé et appareil de communication
KR20220070004A (ko) 통신 방법 및 장치
WO2021204248A1 (fr) Procédé de communication sans fil et appareil de communication
WO2021027790A1 (fr) Procédé et appareil de communication de liaison latérale
WO2021134659A1 (fr) Procédé et dispositif de transmission de relais
WO2021056584A1 (fr) Procédé et appareil de communication
WO2021114043A1 (fr) Procédé de communication de dispositif à dispositif et appareil de communication
US20230038246A1 (en) Communication method and apparatus
WO2021082010A1 (fr) Procédé et appareil d'acquisition d'informations de position
US20220322262A1 (en) Method, apparatus, and system for signal synchronization
WO2021212505A1 (fr) Procédé, dispositif et système de communication
WO2021128218A1 (fr) Procédé et appareil de communication de liaison latérale
WO2021134677A1 (fr) Procédé, appareil et système de transmission de données
WO2021087963A1 (fr) Dispositif et procédé de sélection de ressource

Legal Events

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

Ref document number: 19950415

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19950415

Country of ref document: EP

Kind code of ref document: A1