WO2022161503A1 - Procédé et appareil de positionnement de terminal, ainsi que dispositif, support de stockage et produit de programme - Google Patents

Procédé et appareil de positionnement de terminal, ainsi que dispositif, support de stockage et produit de programme Download PDF

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Publication number
WO2022161503A1
WO2022161503A1 PCT/CN2022/075393 CN2022075393W WO2022161503A1 WO 2022161503 A1 WO2022161503 A1 WO 2022161503A1 CN 2022075393 W CN2022075393 W CN 2022075393W WO 2022161503 A1 WO2022161503 A1 WO 2022161503A1
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WIPO (PCT)
Prior art keywords
reference signal
positioning reference
terminal
configuration information
target
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PCT/CN2022/075393
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English (en)
Chinese (zh)
Inventor
赵铮
任晓涛
任斌
达人
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大唐移动通信设备有限公司
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Publication of WO2022161503A1 publication Critical patent/WO2022161503A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a terminal positioning method, apparatus, device, storage medium and program product.
  • RAT-dependent radio access technology
  • OTDOA Observed Time Difference of Arrival
  • PRS positioning reference signals
  • the terminal detects the arrival time difference of the PRS sent by the adjacent base stations
  • the detected time difference of arrival is sent to the positioning server
  • the positioning server performs positioning calculation according to the position of the base station and the time difference of arrival fed back by the terminal to determine the position of the terminal.
  • the positioning of the terminal depends on the positions of multiple base stations and the measurement of the PRS of the base stations. If the relative position between two terminals is to be determined, the positioning delay of this solution is relatively large.
  • the present application provides a terminal positioning method, apparatus, device, storage medium and program product, which reduce the terminal positioning delay.
  • the present application provides a method for locating a terminal, including:
  • the first terminal determines the target positioning reference signal
  • the first terminal sends the target positioning reference signal to the second terminal through the direct link, where the target positioning reference signal is used to determine the relative distance between the second terminal and the first terminal.
  • the first terminal directly sends a positioning reference signal to the second terminal by using the direct link, so that the second terminal can determine the relative distance between the second terminal and the first terminal according to the positioning reference signal, compared with
  • the prior art relies on the method for locating the terminal by the base station, the locating process is simpler and the delay is smaller.
  • the first terminal determines the target positioning reference signal, including:
  • the target positioning reference signal is determined according to the configuration information of the positioning reference signal. Therefore, the second terminal can be made to detect the limited positioning reference signal, and the detection complexity can be reduced.
  • the first terminal acquires the configuration information of the positioning reference signal, including:
  • the configuration information of the positioning reference signal determined by the network device according to the location information and/or the direction information is received.
  • the location information includes area information to which the first terminal belongs.
  • the first terminal acquires the configuration information of the positioning reference signal, including:
  • the first terminal receives the configuration information of the positioning reference signal broadcast by the network device, and/or the first terminal obtains the configuration information of the preconfigured positioning reference signal.
  • the determining the target positioning reference signal according to the configuration information of the positioning reference signal includes:
  • the first terminal selects and reports a target positioning reference signal from the positioning reference signal resource pool.
  • the first terminal selects and reports the target positioning reference signal from the positioning reference signal resource pool, including:
  • the first terminal reports the selected positioning reference signal to the network device, and if receiving confirmation information returned by the network device, determines the selected positioning reference signal as the target positioning reference signal, and the confirmation information is used to indicate The positioning reference signal selected by the first terminal is available. Therefore, collision of positioning reference signal resources is avoided.
  • the method further includes:
  • the first terminal sends positioning measurement information to the second terminal through the radio resource control signaling of the direct link, where the positioning measurement information is used to indicate the positioning reference signal to be measured, and the positioning reference signal to be measured includes the target positioning reference signal.
  • the positioning measurement information includes:
  • the first terminal determines the target positioning reference signal, including:
  • the first terminal performs positioning reference signal detection, and determines the target positioning reference signal according to the detected positioning reference signal.
  • the target positioning reference signal is a positioning reference signal other than the detected positioning reference signal. Therefore, collision of positioning reference signal resources is avoided.
  • the first terminal determines the target positioning reference signal, including:
  • the first terminal determines the target positioning reference signal according to a preconfigured positioning reference signal resource pool.
  • the present application provides a method for locating a terminal, including:
  • the second terminal receives the target positioning reference signal sent by the first terminal through the direct link
  • the relative distance between the second terminal and the first terminal is determined according to the target positioning reference signal.
  • the second terminal receives the positioning reference signal sent by the first terminal using the direct link, and determines the relative distance between the second terminal and the first terminal according to the positioning reference signal, which is compared with the prior art relying on For the method in which the base station locates the terminal, the positioning process is simpler and the delay is smaller.
  • the second terminal receives the target positioning reference signal sent by the first terminal through the direct link, including:
  • the second terminal obtaining, by the second terminal, configuration information of a positioning reference signal to be measured, and the target positioning reference signal is any one of the positioning reference signals to be measured;
  • the target positioning reference signal is received according to the configuration information of the target positioning reference signal. Therefore, the second terminal can detect the limited positioning reference signal, and the detection complexity is reduced.
  • the second terminal acquires the configuration information of the positioning reference signal to be measured, including:
  • the configuration information of the positioning reference signal to be measured determined by the network device according to the location information and/or the direction information is received.
  • the location information includes area information to which the second terminal belongs.
  • the second terminal acquires the configuration information of the positioning reference signal to be measured, including:
  • the second terminal receives the configuration information of the positioning reference signal to be measured broadcast by the network device.
  • the second terminal acquires the configuration information of the positioning reference signal to be measured, including:
  • the second terminal acquires the configuration information of the preconfigured positioning reference signal to be measured.
  • the method further includes:
  • the second terminal receives the positioning measurement information sent by the first terminal through the radio resource control signaling of the direct link, where the positioning measurement information is used to indicate the positioning reference signal to be measured, the positioning reference signal to be measured Including the target positioning reference signal.
  • the positioning measurement information includes:
  • the method further includes:
  • the second terminal reports the relative distance between the second terminal and the first terminal to the network device.
  • the present application provides a method for locating a terminal, including:
  • the network device receives the location information and/or direction information sent by the terminal;
  • the configuration information of the positioning reference signal of the direct link is sent to the terminal according to the location information and/or the direction information.
  • the method further includes:
  • the present application provides a positioning device for a terminal, including:
  • the sending unit is configured to send the target positioning reference signal to the second terminal through the direct link, where the target positioning reference signal is used to determine the relative distance between the second terminal and the positioning device of the terminal.
  • the determining unit is used for:
  • configuration information of a positioning reference signal where the configuration information of the positioning reference signal is used to indicate a positioning reference signal resource pool;
  • the target positioning reference signal is determined according to the configuration information of the positioning reference signal.
  • the determining unit is used for:
  • the configuration information of the positioning reference signal determined by the network device according to the location information and/or the direction information is received.
  • the location information includes area information to which the positioning device of the terminal belongs.
  • the determining unit is used for:
  • the determining unit is used for:
  • a target positioning reference signal is selected from the positioning reference signal resource pool.
  • the determining unit is used for:
  • the selected positioning reference signal is determined as the target positioning reference signal, and the confirmation information is used to indicate the positioning of the terminal.
  • Device-selected positioning reference signals are available.
  • the positioning device of the terminal further includes:
  • connection unit configured to establish a direct link radio resource control connection with the second terminal
  • the sending unit is further configured to send positioning measurement information to the second terminal through the radio resource control signaling of the direct link, where the positioning measurement information is used to indicate the positioning reference signal to be measured, the positioning to be measured
  • the reference signal includes the target positioning reference signal.
  • the positioning measurement information includes:
  • the configuration information of the target positioning reference signal, and/or the timing advance for sending the positioning reference signal by the positioning apparatus of the terminal are configured to provide the configuration information of the target positioning reference signal, and/or the timing advance for sending the positioning reference signal by the positioning apparatus of the terminal.
  • the determining unit is used for:
  • the positioning reference signal detection is performed, and the target positioning reference signal is determined according to the detected positioning reference signal.
  • the target positioning reference signal is a positioning reference signal other than the detected positioning reference signal.
  • the determining unit is used for:
  • the target positioning reference signal is determined according to a preconfigured positioning reference signal resource pool.
  • the present application provides a positioning device for a terminal, including:
  • a receiving unit configured to receive the target positioning reference signal sent by the first terminal through the direct link
  • a determining unit configured to determine the relative distance between the positioning device of the terminal and the first terminal according to the target positioning reference signal.
  • the receiving unit is used for:
  • the target positioning reference signal is any one of the positioning reference signals to be measured
  • the target positioning reference signal is received according to the configuration information of the target positioning reference signal.
  • the receiving unit is used for:
  • the configuration information of the positioning reference signal to be measured determined by the network device according to the location information and/or the direction information is received.
  • the location information includes area information to which the positioning device of the terminal belongs.
  • the receiving unit is used for:
  • the receiving unit is used for:
  • the positioning device of the terminal includes:
  • connection unit configured to establish a direct link radio resource control connection with the first terminal
  • the receiving unit is further configured to receive the positioning measurement information sent by the first terminal through the radio resource control signaling of the direct link, where the positioning measurement information is used to instruct the positioning device of the terminal to measure the positioning reference signal to be measured , the positioning reference signal to be measured includes the target positioning reference signal.
  • the positioning measurement information includes:
  • the configuration information of the target positioning reference signal, and/or the timing advance for sending the positioning reference signal by the positioning apparatus of the terminal are configured to provide the configuration information of the target positioning reference signal, and/or the timing advance for sending the positioning reference signal by the positioning apparatus of the terminal.
  • the positioning device of the terminal further includes:
  • a sending unit configured to report the relative distance between the positioning apparatus of the terminal and the first terminal to the network device.
  • the present application provides a positioning device for a terminal, including:
  • a receiving unit configured to receive the location information and/or direction information sent by the terminal
  • a sending unit configured to send the configuration information of the positioning reference signal of the direct link to the terminal according to the position information and/or the direction information.
  • the receiving unit is further configured to receive a positioning reference signal selected by the terminal reported by the terminal;
  • the sending unit is further configured to send confirmation information to the terminal, where the confirmation information is used to indicate that the positioning reference signal selected by the terminal is available.
  • the present application provides a terminal, including a memory and a processor, and the memory and the processor are connected;
  • the memory is used to store computer programs
  • the processor is configured to implement the method according to any one of the first aspect or the second aspect when the computer program is executed.
  • the present application provides a network device, including a memory and a processor, and the memory and the processor are connected;
  • the memory is used to store computer programs
  • the processor is configured to implement the method of any one of the third aspects when the computer program is executed.
  • the present application provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, any one of the above-mentioned first aspect, second aspect or third aspect is realized. the method described.
  • the present application provides a program product, including a computer program, which, when executed by a processor, implements the method according to any one of the first aspect, the second aspect or the third aspect.
  • Embodiments of the present application provide a method, device, device, storage medium, and program product for locating a terminal.
  • the first terminal uses a direct link between a first terminal and a second terminal, the first terminal sends a positioning reference to the second terminal through the direct link. signal, so that the second terminal can directly determine the relative distance between the second terminal and the first terminal according to the positioning reference signal.
  • Positioning method The positioning process is simple and the delay is small.
  • FIG. 1 is an application scenario diagram of a method for locating a terminal provided by an embodiment of the present application
  • FIG. 2 is a schematic flowchart of a method for locating a terminal according to an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of a positioning apparatus for a terminal according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a positioning apparatus for a terminal according to another embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a positioning apparatus for a terminal according to another embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a terminal provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • the term "and/or” describes the relationship between related objects, and means that there can be three relationships, for example, A and/or B, which can mean that A exists alone, A and B exist simultaneously, and B exists alone. a situation.
  • the character "/” generally indicates that the associated objects are an "or” relationship.
  • the term “plurality” refers to two or more than two, and other quantifiers are similar.
  • the embodiments of the present application provide a terminal positioning method, apparatus, device, storage medium and program product, so as to realize terminal positioning and reduce positioning delay.
  • the method and the device are conceived based on the same application. Since the principles of the method and the device for solving the problem are similar, the implementation of the device and the method can be referred to each other, and repeated descriptions will not be repeated here.
  • the applicable system may be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) general packet Wireless service (general packet radio service, GPRS) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, Long term evolution advanced (LTE-A) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G New Radio (New Radio, NR) system, etc.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband Code Division Multiple Access
  • general packet Wireless service general packet Radio service
  • GPRS general packet Wireless service
  • LTE long term evolution
  • LTE frequency division duplex frequency division duplex
  • time division duplex time division duplex
  • TDD Time division duplex
  • the terminal device involved in the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem.
  • the name of the terminal device may be different.
  • the terminal device may be called user equipment (User Equipment, UE).
  • Wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via a radio access network (Radio Access Network, RAN).
  • RAN Radio Access Network
  • "telephone) and computers with mobile terminal equipment eg portable, pocket-sized, hand-held, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network.
  • Wireless terminal equipment may also be referred to as system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , remote terminal, access terminal, user terminal, user agent, user device.
  • the terminal device may also be a terminal in an intelligent connected vehicle technology (Vehicle to Everything, V2X) system, such as a vehicle-mounted terminal, etc., which is not limited in this embodiment of the present application.
  • V2X intelligent connected vehicle technology
  • the network device involved in the embodiments of the present application may be a base station, and the base station may include a plurality of cells providing services for the terminal.
  • the base station may also be called an access point, or may be a device in the access network that communicates with wireless terminal equipment through one or more sectors on the air interface, or other names.
  • the network device can be used to exchange received air frames with Internet Protocol (IP) packets, and act as a router between the wireless terminal device and the rest of the access network, which can include the Internet. Protocol (IP) communication network.
  • IP Internet Protocol
  • the network devices may also coordinate attribute management for the air interface.
  • the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile Communications (GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA). ), it can also be a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or it can be an evolved network device in a long term evolution (LTE) system (evolutional Node B, eNB or e-NodeB), 5G base station (gNB) in 5G network architecture (next generation system), or Home evolved Node B (HeNB), relay node (relay node) , a home base station (femto), a pico base station (pico), etc., which are not limited in the embodiments of the present application.
  • BTS Base Transceiver Station
  • GSM Global System for Mobile Communications
  • CDMA Code Division Multiple Access
  • NodeB Wide-band Code Division Multiple Access
  • LTE long term evolution
  • gNB 5G base station
  • a network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.
  • the network device involved in the embodiment of the present application may also be a core network device.
  • various RAT-dependent positioning methods are defined in 3GPP, the basic principle of which is to use multiple base stations to locate a terminal. For example, multiple base stations send PRS to the terminal, the terminal detects the arrival time difference of the PRS sent by the adjacent base stations, and sends the detected arrival time difference to the positioning server. Determine the location of the terminal.
  • the location server may be a base station or a location management function (Location Management Function, LMF).
  • the relative positional relationship between terminals For scenarios where the relative positional relationship between terminals needs to be determined, for example, in a V2X scenario, the relative positional relationship between vehicles needs to be determined.
  • the network device needs to calculate the position of each terminal device separately, and then further Determine the relative position between the two terminals, and then notify each terminal of the relative position separately. With this method, the positioning process is complicated and the delay is large.
  • FIG. 1 is an application scenario diagram of a method for locating a terminal provided by an embodiment of the present application.
  • the first terminal 11 and the second terminal 12 can also use a direct link for communication between the first terminal 11 and the second terminal 12.
  • the first terminal 11 and the second terminal 12 Positioning may be implemented between a terminal 11 and a second terminal 12 by transmitting a direct link positioning reference signal (SL PRS).
  • S PRS direct link positioning reference signal
  • FIG. 2 is a schematic flowchart of a method for locating a terminal according to an embodiment of the present application. As shown in Figure 2, the method includes:
  • the first terminal determines a target positioning reference signal.
  • the first terminal sends a target positioning reference signal to the second terminal through the direct link.
  • the second terminal determines the relative distance between the second terminal and the first terminal according to the target positioning reference signal.
  • the first terminal is a sending terminal
  • the second terminal is a receiving terminal.
  • the first terminal sends a target positioning reference signal to the second terminal through the direct link.
  • the direct link is a wireless path established between the first terminal and the second terminal.
  • the target positioning reference signal is determined by the first terminal, and the method for determining the target positioning reference signal by the first terminal is not limited in this embodiment of the present application.
  • the second terminal receives the target positioning reference signal sent by the first terminal through the direct link, and determines the relative distance between the second terminal and the first terminal according to the target positioning reference signal, that is, the second terminal determines the relative distance between the second terminal and the first terminal according to the received target positioning reference signal. to locate.
  • the method for the second terminal to perform positioning according to the target positioning reference signal may be the DownLoad-Time Difference of Arrival (DL-TDOA) method, the Round Trip Time (RTT) method, and the angle of arrival ( Angle-of-Arrival, AOA) and other methods, which are not limited in the embodiments of the present application.
  • DL-TDOA DownLoad-Time Difference of Arrival
  • RTT Round Trip Time
  • AOA angle of arrival
  • the first terminal directly sends the positioning reference signal to the second terminal, so that the second terminal can directly determine the relative distance between the second terminal and the first terminal according to the positioning reference signal.
  • the method for positioning the terminal the positioning method provided by the embodiment of the present application, has a simple positioning process and a small delay.
  • the existing method cannot be used to locate the terminal.
  • the method of the embodiment of the present application does not depend on the base station, the positioning can be realized through the direct link between the terminals. , while saving resource overhead.
  • the distance between the two terminals is relatively close, for example, in the V2X scenario, the distance between the vehicles is relatively short, and there is often a (Line of Sight, LOS) path between the two terminals.
  • the channel quality of the direct link is better, and the channel quality of the direct link will be better than the channel quality between the terminal and the base station. Therefore, the accuracy of the positioning result based on the positioning reference signal of the direct link is also higher.
  • the vehicle when positioning is performed through the direct link between the vehicle and the vehicle or between the vehicle and the user terminal, the relative position between the vehicle or the user terminal will change continuously due to the movement of the vehicle or the user.
  • the vehicle In order to avoid collision, the vehicle needs to send a positioning reference signal so that other vehicles can locate the own vehicle, and it also needs to be able to measure the positioning reference signal of the adjacent vehicles to determine the relative position of the surrounding vehicles or the user and the own vehicle. Therefore, the vehicle-mounted terminal as the sender needs to determine the target positioning reference signal to be sent, while the vehicle-mounted terminal as the receiver needs to know which positioning reference signals to measure for measurement, and perform positioning according to the measured positioning reference signals.
  • a terminal When a terminal is located through a direct link, it can be implemented in two ways.
  • One is a Radio Resource Control (RRC) connection that is not based on a direct link.
  • RRC Radio Resource Control
  • no direct link RRC connection is established between the terminals.
  • the RRC connection of the direct link is established between the terminals, but the positioning is not based on the RRC signaling interaction of the direct link; the other is that the RRC connection of the direct link is established between the terminals, and the positioning is based on the direct link.
  • RRC Radio Resource Control
  • the first terminal determines the target positioning reference signal, including:
  • the first terminal acquires the configuration information of the positioning reference signal, where the configuration information of the positioning reference signal is used to indicate the positioning reference signal resource pool; and the target positioning reference signal is determined according to the configuration information of the positioning reference signal.
  • the configuration information of the positioning reference signal may be pre-configured and/or configured by a network device, and the configuration information of the positioning reference signal may indicate the positioning reference signal resource pool to the first terminal by direct indication or indirect indication, or is the range of positioning reference signal resources.
  • the indirect indication refers to calculating the positioning reference signal resource pool according to other information.
  • the second terminal that is, the receiving terminal, can detect the limited positioning reference signal, thereby reducing the detection complexity.
  • the configuration information of the positioning reference signal may include one or more of time-frequency resources, sequence resources, antenna resources, and spatial information of the positioning reference signal.
  • the first terminal sends the location information and/or the direction information to the network device, and receives the configuration information of the positioning reference signal determined by the network device according to the location information and/or the direction information.
  • the location information includes zone (Zone) information to which the first terminal belongs
  • the direction information may include synchronization signal and PBCH block (Synchronization Signal and PBCH block, SSB) Index information.
  • the positioning reference signal resource pool may vary according to the area where the terminal is located.
  • the first terminal reports the area to which the first terminal belongs to the network device, and the network device determines a positioning reference signal resource pool corresponding to the area to which the first terminal belongs, and sends the configuration information of the corresponding positioning reference signal to the first terminal, thereby The first terminal may determine the target reference signal to be sent according to the configuration information of the positioning reference signal.
  • the positioning reference signals may be multiplexed in different regions, that is, the positioning reference signals included in the positioning reference signal resource pools corresponding to different regions may be the same.
  • the used positioning reference signals and the available positioning reference signals are different in each area.
  • the network device can update the available positioning reference signals in each area according to the area where the terminal is located and the situation of using the positioning reference signals.
  • the first terminal receives the configuration information of the positioning reference signal broadcast by the network device.
  • the network device may broadcast the configuration information of the positioning reference signals corresponding to different areas to indicate the positioning reference signal resource pools corresponding to the different areas, and the first terminal may determine the positioning reference corresponding to the area to which the first terminal belongs according to the received broadcast information
  • the signal resource pool is used to determine the target positioning reference signal to be sent.
  • the first terminal acquires the configuration information of the preconfigured positioning reference signal.
  • the configuration information of the preconfigured positioning reference signal may be specified in the protocol, and the first terminal may determine the positioning reference signal resource pool according to the specification of the protocol, so as to determine the target positioning reference signal to be sent.
  • the first terminal when the first terminal is located outside the coverage area of the network device, the first terminal cannot receive the configuration information of the positioning reference signal sent by the network device. At this time, the first terminal can use the pre-configured configuration information of the positioning reference signal. Determine the target positioning reference signal. It can be understood that, before measuring the positioning reference signal, the second terminal may determine the positioning reference signal to be measured according to the configuration information of the preconfigured positioning reference signal, such as the preconfigured positioning reference signal resource pool.
  • the first terminal may not only send the target positioning reference signal according to the configuration information of the positioning reference signal configured by the network device, but also send the target positioning reference signal according to the configuration of the preconfigured positioning reference signal. information to send the target positioning reference signal.
  • the positioning reference signal indicated in the configuration information of the preconfigured positioning reference signal may be related to a terminal identity (UE ID).
  • the terminal identifier may include a source identifier (Source_ID) and/or a destination identifier (Destination_ID).
  • Source_ID source identifier
  • Destination_ID destination identifier
  • preconfigured configuration information for sending the positioning reference signal may be determined according to the source identifier.
  • preconfigured configuration information for receiving the positioning reference signal may be determined according to the destination identifier.
  • the configuration information of the pre-configured positioning reference signal may be used according to the usage scenario, and the target positioning reference signal to be sent may be determined according to the source identifier or the destination identifier.
  • the first terminal may determine the target positioning reference signal by using the identity of the central node as the source identity.
  • the electric pile of the parking space can send the target positioning reference signal according to the identification of the vehicle terminal as the target identification.
  • the positioning reference signal resource pool indicated by the preconfigured positioning reference signal configuration information is different from the positioning reference signal resource pool indicated by the positioning reference signal configuration information configured by the network device.
  • the priority of the configuration information of the positioning reference signal configured by the network device is higher than the configuration information of the preconfigured positioning reference signal, when the first terminal accesses the network and receives the configuration information of the positioning reference signal sent by the network device, Then, the first terminal determines the target positioning reference signal to be sent according to the configuration information of the positioning reference signal sent by the network device. When the first terminal cannot receive the configuration information of the positioning reference signal sent by the network device, the first terminal determines the target positioning reference signal to be sent according to the preconfigured configuration information of the positioning reference signal.
  • the configuration information of the positioning reference signal configured by the network device and the priority of the configuration information of the pre-configured positioning reference signal may be configured by the network device. That is, the network device specifies that the first terminal adopts the configuration information of the positioning reference signal configured by the configuration network device, or the configuration information of the pre-configured positioning reference signal.
  • the first terminal may determine the target positioning reference signal to be sent according to the positioning reference signal resource pool indicated by the configuration information of the positioning reference signal. For example, the first terminal selects a positioning reference signal from the positioning reference signal resource pool, determines it as the target positioning reference signal, and sends it.
  • the on-board terminal when the vehicle is driving on the road, the on-board terminal needs to detect the front and rear vehicles in the same lane, and the positioning reference signal can be bound to the lane, and the on-board terminal sends the positioning reference signal corresponding to the current driving lane to facilitate the detection of other vehicles.
  • the vehicle terminal When the vehicle needs to be inserted into the side lane, during the insertion process, the vehicle terminal needs to send a positioning reference signal corresponding to the inserted lane and the original driving lane.
  • the two first terminals when the two first terminals select the same target positioning reference signal for transmission, the two first terminals cannot detect each other.
  • the first terminal may randomly select some moments not to send the target. Positioning reference signal, and performing positioning reference signal detection at these moments, since the two first terminals randomly select the same moment of not sending the target positioning reference signal, the probability is low, so it can avoid the inability to measure due to the collision of the target positioning reference signal positioning problem.
  • the moment selected by the first terminal not to send the target positioning reference signal may be related to the identity of the first terminal, thereby further reducing the time selected by the two first terminals not to send the target positioning reference signal to be the same.
  • the probability of the target positioning reference signal resource collision can avoid the problem that the positioning cannot be measured.
  • each terminal may have a number (Zone ID) in the area, and the moment when the first terminal does not send the target positioning reference signal may be related to the Zone ID, which can also reduce the two first.
  • the terminal selects the same probability of not sending the target positioning reference signal, so as to avoid the problem that the positioning cannot be measured due to the collision of the target positioning reference signal resources.
  • the first terminal may detect positioning reference signals of surrounding terminals, and select an undetected positioning reference signal from a positioning reference signal resource pool as a target positioning reference signal, thereby avoiding a collision of positioning reference signal resources.
  • the first terminal can also report the selected target positioning reference signal to the network device, so that the network device can determine the positioning reference signal used by each terminal, and then can update the available positioning reference signal resource pool.
  • the first terminal may also send a positioning request to the network device while reporting the target positioning reference signal, so that the network device starts a processing flow related to positioning.
  • the first terminal selects the positioning reference signal from the positioning reference signal resource pool, reports the selected positioning reference signal to the network device, and determines the selected positioning reference signal as the target if it receives the confirmation information returned by the network device.
  • the confirmation information is used to indicate that the positioning reference signal selected by the first terminal is available.
  • the network device may confirm whether the positioning reference signal selected by the first terminal is available, and if available, the network device sends confirmation information to the first terminal. If it is unavailable, the network device may not return confirmation information to the first terminal, or the network device may also send information indicating that the selected target reference signal is unavailable to the first terminal. If the first terminal device does not receive the acknowledgment information after reporting the selected positioning reference signal, it reselects the positioning reference signal until the acknowledgment information is received.
  • the network device may only send confirmation information to one of the terminals, or, No acknowledgment information is sent for either terminal.
  • the network device may update the positioning reference signal resource pool according to the positioning reference signal reported by the first terminal. Exemplarily, after the first terminal reports the selected positioning reference signal, the network device determines that the positioning reference signal has not been selected by other terminals, so returns confirmation information to the first terminal, and at the same time removes the positioning reference signal from the positioning reference signal resource pool. , and notify other terminals of the new positioning reference signal resource pool, so that other terminals can select available positioning reference signals from it.
  • the second terminal receives the target positioning reference signal sent by the first terminal through the through link, including:
  • the second terminal acquires the configuration information of the positioning reference signal to be measured, and the target positioning reference signal is any one of the positioning reference signals to be measured; and receives the target positioning reference signal according to the configuration information of the target positioning reference signal.
  • the second terminal In order to perform effective positioning reference signal measurement, the second terminal needs to know which positioning reference signals need to be measured, that is, the second terminal needs to obtain the configuration information of the positioning reference signal of the nearby terminals, and the configuration information of the positioning reference signal can be pre-configured and/or configured by the network device. By limiting the positioning reference signals to be measured, the second terminal can be made to detect the limited positioning reference signals, thereby reducing the detection complexity.
  • the second terminal sends location information and/or direction information to the network device, and receives configuration information of the positioning reference signal to be measured determined by the network device according to the location information and/or direction information.
  • the location information of the second terminal includes area information to which the second terminal belongs.
  • the second terminal reports the region to which the second terminal belongs to the network device, and the network device may determine the positioning reference signal resource pool corresponding to the region to which the second terminal belongs and/or the adjacent regions of the region to which the second terminal belongs as the positioning reference to be measured signal, and send the corresponding configuration information to the second terminal, so that the second terminal can receive the positioning reference signal to be measured according to the configuration information of the positioning reference signal to be measured, which includes the target positioning reference signal sent by the first terminal.
  • the second terminal reports the area to which the second terminal belongs to the network device, and the network device uses the positioning reference signal sent by the terminal in the same area as the positioning reference signal to be measured according to the area to which the second terminal belongs, and uses its configuration information as the positioning reference signal to be measured. sent to the second terminal.
  • the positioning reference signal to be measured sent by the network device to the second terminal may indicate the positioning reference signal to be measured by means of direct indication or indirect indication.
  • the network device sends the complete set of the positioning reference signal resource pool determined according to the area to which the second terminal belongs and the configuration information corresponding to the set of available positioning reference signals to the second terminal, so that the second terminal can use the positioning reference signal resource pool according to the second terminal. and the difference of the set of available positioning reference signals to determine the positioning reference signal to be measured.
  • the second terminal receives the configuration information of the positioning reference signal to be measured broadcast by the network device.
  • the network device may broadcast the configuration information of the positioning reference signals corresponding to different areas to indicate the positioning reference signal resource pools corresponding to the different areas, and the second terminal may determine the positioning reference corresponding to the area to which the second terminal belongs according to the received broadcast information
  • the signal resource pool is determined as the positioning reference signal to be measured, so as to facilitate the reception measurement.
  • the second terminal acquires the configuration information of the preconfigured positioning reference signal to be measured.
  • the configuration information of the pre-configured positioning reference signals may be specified in the protocol, and the second terminal may determine the configuration information of the positioning reference signals to be measured according to the provisions of the protocol, such as the resource pool of the positioning reference signals to be measured, so as to facilitate Perform positioning reference signal reception measurements.
  • the second terminal When the second terminal is located outside the coverage area of the network device, the second terminal cannot receive the configuration information of the positioning reference signal to be measured sent by the network device, and the second terminal can use the pre-configured configuration of the positioning reference signal to be measured. information. It can be understood that, before measuring the positioning reference signal, the second terminal may determine the positioning reference signal to be measured according to the configuration information of the preconfigured positioning reference signal, such as the preconfigured positioning reference signal resource pool. In this case, if the first terminal located in the coverage area of the network equipment uses the positioning reference signal resource pool configured by the network equipment to send the target positioning reference signal, the second terminal cannot detect the first terminal.
  • the second terminal can report information to the network device through other terminals to notify the network device that there are terminals outside the coverage area in the area where the second terminal is located, so that the network device can instruct the first terminal in the coverage area to use the pre-configured positioning reference Signal resource pool to send target positioning reference signals.
  • the second terminal may determine the positioning reference signal to be measured according to the configuration information of the positioning reference signal to be measured configured by the network device, and also according to the preconfigured positioning reference signal to be measured.
  • the positioning reference signal to be measured is obtained by measuring the configuration information of the positioning reference signal.
  • the target positioning reference signal sent by the first terminal optionally, in order to ensure that the first terminal can be detected by the second terminal within the coverage area of the network device and outside the coverage area, and to ensure that the second terminal can detect
  • the first terminal when the first terminal is within the coverage area of the network device, the first terminal both according to the configuration information of the positioning reference signal configured by the network device.
  • the target positioning reference signal is sent, and the target positioning reference signal is also sent according to the configuration information of the preconfigured positioning reference signal; when the first terminal is outside the coverage area of the network device, the first terminal is based on the preconfigured positioning reference signal configuration information. to send the target positioning reference signal.
  • the second terminal when the second terminal is within the coverage area of the network device, the second terminal not only determines the positioning reference signal to be measured according to the configuration information of the positioning reference signal to be measured configured by the network device, but also determines the positioning reference signal to be measured according to the preconfigured positioning reference signal to be measured.
  • the configuration information of the positioning reference signal to be measured is measured to obtain the positioning reference signal to be measured; when the second terminal is outside the coverage area of the network device, the second terminal obtains the positioning reference signal to be measured according to the preconfigured configuration information of the positioning reference signal to be measured .
  • the network device instructs the first terminal to use the configuration information of the pre-configured and/or network-configured positioning reference signal to send the target positioning reference signal, and/or the network device instructs the second terminal to use the pre-configured and/or network-configured positioning reference signal.
  • the configuration information of the positioning reference signal is used to receive the target positioning reference signal. It should be noted that during the terminal communication process of the direct link, some first terminals may be within the coverage of the network device, and some first terminals may be outside the coverage of the network device.
  • the second terminal will measure according to the instructions of the network equipment, if the network equipment has no instructions, the second terminal will measure the coverage and coverage of the network equipment.
  • the positioning reference signals of the first terminal outside the range are all measured.
  • the first terminal before the first terminal determines the target positioning reference signal, the first terminal establishes the RRC connection of the through link with the second terminal. That is, a synchronization and RRC connection is first established between the first terminal and the second terminal, then the first terminal determines the target positioning reference signal to be sent and sends the target positioning reference signal, and the first terminal sends the The second terminal sends positioning measurement information, where the positioning measurement information is used to indicate to the second terminal a positioning reference signal to be measured, and the positioning reference signal to be measured includes a target positioning reference signal.
  • the second terminal receives the positioning measurement information sent by the first terminal through the RRC signaling, and receives the target positioning reference signal according to the positioning measurement information.
  • the positioning measurement information includes:
  • the configuration information of the target positioning reference signal, and/or the timing advance for sending the positioning reference signal by the first terminal is not limited.
  • the positioning reference signal to be measured may include one or more target positioning reference signals.
  • the first terminal may only send configuration information related to the target positioning reference signal as positioning measurement information to the second terminal, so that the second terminal may only measure the target positioning reference signal according to the positioning measurement information.
  • the first terminal can send the configuration information related to the positioning reference signal resource pool including the target positioning reference signal to the second terminal as positioning measurement information, so that the second terminal can send the configuration information including the target positioning reference signal to the second terminal.
  • the positioning reference signal resource pool of the reference signal is measured as the positioning reference signal to be measured.
  • the positioning measurement information includes: the configuration information of the positioning reference signal to be measured, that is, the configuration information including the target positioning reference signal, and/or, the time advance (Time Advance, TA) for sending the positioning reference signal by the first terminal , the second terminal can determine the time when the first terminal sends the target positioning reference signal according to the timing advance of the first terminal sending the target positioning reference signal, and then can determine the sending and receiving delay of the target positioning reference signal in combination with the time when the target reference signal is received , and then determine the relative distance between the first terminal and the second terminal.
  • the configuration information of the positioning reference signal to be measured that is, the configuration information including the target positioning reference signal
  • the time advance Time Advance, TA
  • the first terminal determines the target positioning reference signal according to a preconfigured positioning reference signal resource pool.
  • the first terminal may determine the positioning reference signal resource pool according to the provisions of the protocol, and determine the target positioning reference signal to be sent from the positioning reference signal resource pool.
  • the first terminal performs positioning reference signal detection, and determines the target positioning reference signal according to the detected positioning reference signal.
  • the first terminal detects surrounding positioning reference signals, and the positioning reference signals detected by the first terminal are positioning reference signals that have been used by other terminals. Therefore, the first terminal can determine the target positioning reference to be sent according to the used positioning reference signals. Signal.
  • the target positioning reference signal is a positioning reference signal other than the detected positioning reference signal, so as to avoid collision of the positioning reference signals.
  • the second terminal may further report the relative distance between the second terminal and the first terminal to the network device .
  • the network device may estimate the location of each terminal according to the measurement result reported by each terminal, and implement multiplexing of positioning reference signals in different areas according to the location information of the terminal.
  • the network device may estimate the location of each terminal according to the measurement results reported by each terminal, and combine the terminals with a relatively short distance according to the location information of the terminals.
  • the network device may estimate the location of the terminal according to the uplink positioning pilot signal sent by the terminal, and combine the terminals with a short distance. Therefore, the network device can send the configuration information of the positioning reference signal to the terminal according to the combination between the terminals.
  • FIG. 3 is a schematic structural diagram of an apparatus for positioning a terminal according to an embodiment of the present application.
  • the positioning device of the terminal may be the first terminal in the foregoing embodiment or may be integrated in the first terminal.
  • the positioning device 30 of the terminal includes:
  • a determining unit 301 configured to determine a target positioning reference signal
  • the sending unit 302 is configured to send a target positioning reference signal to the second terminal through the direct link, where the target positioning reference signal is used to determine the relative distance between the second terminal and the positioning apparatus 30 of the terminal.
  • the determining unit 301 is used for:
  • the target positioning reference signal is determined according to the configuration information of the positioning reference signal.
  • the determining unit 301 is used for:
  • the configuration information of the positioning reference signal determined by the network device according to the location information and/or the direction information is received.
  • the location information includes area information to which the positioning device 30 of the terminal belongs.
  • the determining unit 301 is used for:
  • the determining unit 301 is used for:
  • the target positioning reference signal is selected from the positioning reference signal resource pool.
  • the determining unit 301 is used for:
  • the selected positioning reference signal is determined as the target positioning reference signal, and the confirmation information is used to indicate that the positioning reference signal selected by the positioning device 30 of the terminal is available .
  • the positioning apparatus 30 of the terminal further includes:
  • a connecting unit 303 configured to establish a radio resource control connection of a direct link with the second terminal
  • the sending unit 302 is further configured to send positioning measurement information to the second terminal through the radio resource control signaling of the direct link, where the positioning measurement information is used to indicate the positioning reference signal to be measured, and the positioning reference signal to be measured includes the target positioning reference signal.
  • the positioning measurement information includes:
  • the configuration information of the target positioning reference signal, and/or the timing advance for sending the positioning reference signal by the positioning apparatus 30 of the terminal are configured to be used as the configuration information of the target positioning reference signal, and/or the timing advance for sending the positioning reference signal by the positioning apparatus 30 of the terminal.
  • the determining unit 301 is used for:
  • the positioning reference signal is detected, and the target positioning reference signal is determined according to the detected positioning reference signal.
  • the target positioning reference signal is a positioning reference signal other than the detected positioning reference signal.
  • the determining unit 301 is used for:
  • the target positioning reference signal is determined according to the preconfigured positioning reference signal resource pool.
  • FIG. 4 is a schematic structural diagram of a positioning apparatus for a terminal according to another embodiment of the present application.
  • the positioning device of the terminal may be the second terminal in the foregoing embodiment or may be integrated in the second terminal.
  • the positioning device 40 of the terminal includes:
  • a receiving unit 401 configured to receive a target positioning reference signal sent by a first terminal through a direct link
  • the determining unit 402 is configured to determine the relative distance between the second terminal and the first terminal according to the target positioning reference signal.
  • the receiving unit 401 is used for:
  • the target positioning reference signal is received according to the configuration information of the target positioning reference signal.
  • the receiving unit 401 is used for:
  • the configuration information of the positioning reference signal to be measured determined by the network device according to the location information and/or the direction information is received.
  • the location information includes area information to which the second terminal belongs.
  • the receiving unit 401 is used for:
  • the receiving unit 401 is used for:
  • the positioning apparatus 40 of the terminal includes:
  • a connecting unit 403 configured to establish a radio resource control connection of a direct link with the first terminal
  • the receiving unit 401 is further configured to receive the positioning measurement information sent by the first terminal through the radio resource control signaling of the direct link, where the positioning measurement information is used to instruct the positioning device 40 of the terminal to measure the positioning reference signal to be measured, and the positioning reference signal to be measured Including target positioning reference signals.
  • the positioning measurement information includes:
  • the configuration information of the target positioning reference signal, and/or the timing advance for sending the positioning reference signal by the positioning apparatus 40 of the terminal are configured to be used as the configuration information of the target positioning reference signal, and/or the timing advance for sending the positioning reference signal by the positioning apparatus 40 of the terminal.
  • the positioning apparatus 40 of the terminal further includes:
  • the sending unit 404 is configured to report the relative distance between the positioning apparatus 40 of the terminal and the first terminal to the network device.
  • FIG. 5 is a schematic structural diagram of a positioning apparatus for a terminal according to another embodiment of the present application.
  • the positioning device 50 of the terminal includes:
  • a receiving unit 501 configured to receive location information and/or direction information sent by a terminal
  • the sending unit 502 is configured to send the configuration information of the positioning reference signal of the direct link to the terminal according to the position information and/or the direction information.
  • the receiving unit 501 is further configured to receive a positioning reference signal selected by the terminal and reported by the terminal.
  • the sending unit 502 is further configured to send confirmation information to the terminal, where the confirmation information is used to indicate that the positioning reference signal selected by the terminal is available.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the integrated unit if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a processor-readable storage medium.
  • the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .
  • FIG. 6 is a schematic structural diagram of a terminal according to an embodiment of the present application.
  • the terminal 60 includes a memory 601 , a processor 602 and a transceiver 603 , and the memory 601 , the processor 602 and the transceiver 603 are connected through a bus 604 .
  • the memory 601 is used to store computer programs.
  • the processor 602 is configured to implement the method implemented by the first terminal or the second terminal in the above method embodiments when the computer program is executed.
  • FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • the network device 70 includes a memory 701 , a processor 702 and a transceiver 703 , and the memory 701 , the processor 702 and the transceiver 703 are connected through a bus 704 .
  • the memory 701 is used to store computer programs
  • the processor 702 is configured to implement the method implemented by the network device in the above method embodiments when the computer program is executed.
  • Embodiments of the present application provide a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, implements the method implemented by the first terminal, the second terminal, or the network.
  • An embodiment of the present application provides a program product, including a computer program, and when the computer program is executed by a processor, the method implemented by the first terminal, the second terminal, or the network is implemented.
  • the transceiver is used to receive and transmit data under the control of the processor.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor and various circuits of the memory are linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein.
  • the bus interface provides the interface.
  • a transceiver may be a number of elements, including a transmitter and a receiver, that provide means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like.
  • the processor is responsible for managing the bus architecture and general processing, and the memory can store data that the processor uses when performing operations.
  • the processor can be a central processor (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), the processor can also use a multi-core architecture.
  • CPU central processor
  • ASIC application specific integrated circuit
  • FPGA field-programmable gate array
  • CPLD complex programmable logic device
  • the processor is configured to execute any one of the methods provided in the embodiments of the present application according to the obtained executable instructions by invoking the computer program stored in the memory.
  • the processor and memory may also be physically separated.
  • the processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (eg, CD, DVD, BD, HVD, etc.), and semiconductor memory (eg, ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state disk (SSD)), etc.
  • magnetic storage eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.
  • optical storage eg, CD, DVD, BD, HVD, etc.
  • semiconductor memory eg, ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state disk (SSD)
  • the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein, including but not limited to disk storage, optical storage, and the like.
  • processor-executable instructions may also be stored in a processor-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the processor-readable memory result in the manufacture of means including the instructions product, the instruction means implements the functions specified in the flow or flow of the flowchart and/or the block or blocks of the block diagram.
  • processor-executable instructions can also be loaded onto a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process that Execution of the instructions provides steps for implementing the functions specified in the flowchart or blocks and/or the block or blocks of the block diagrams.

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

Abstract

L'invention concerne un procédé et un appareil de positionnement de terminal, ainsi qu'un dispositif, un support de stockage et un produit de programme. Le procédé comprend les étapes suivantes : un premier terminal détermine un signal de référence de positionnement cible ; le premier terminal envoie le signal de référence de positionnement cible à un second terminal au moyen d'une liaison latérale ; le second terminal reçoit le signal de référence de positionnement cible qui est envoyé par le premier terminal au moyen de la liaison latérale ; et le second terminal détermine une distance relative entre le second terminal et le premier terminal en fonction du signal de référence de positionnement cible. Par conséquent, un retard de positionnement d'un terminal est réduit.
PCT/CN2022/075393 2021-02-01 2022-02-07 Procédé et appareil de positionnement de terminal, ainsi que dispositif, support de stockage et produit de programme WO2022161503A1 (fr)

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CN202110137466.6A CN114845237A (zh) 2021-02-01 2021-02-01 终端的定位方法、装置、设备、存储介质及程序产品

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WO2024092663A1 (fr) * 2022-11-03 2024-05-10 北京小米移动软件有限公司 Procédés et appareils de détermination de mode de positionnement

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