WO2020164405A1 - Procédé de positionnement, et appareil de communication - Google Patents

Procédé de positionnement, et appareil de communication Download PDF

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Publication number
WO2020164405A1
WO2020164405A1 PCT/CN2020/074232 CN2020074232W WO2020164405A1 WO 2020164405 A1 WO2020164405 A1 WO 2020164405A1 CN 2020074232 W CN2020074232 W CN 2020074232W WO 2020164405 A1 WO2020164405 A1 WO 2020164405A1
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WO
WIPO (PCT)
Prior art keywords
reference signal
uplink reference
downlink reference
information
transmission
Prior art date
Application number
PCT/CN2020/074232
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English (en)
Chinese (zh)
Inventor
陈雷
黄甦
扎里非凯文
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华为技术有限公司
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Publication of WO2020164405A1 publication Critical patent/WO2020164405A1/fr

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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a positioning method and a communication device.
  • the positioning technology is mainly realized by estimating the relative distance or relative angle between a base station with a known location and the user to be located.
  • the uplink positioning technology sends uplink reference signals through user equipment (UE), and the base station receives and measures the arrival time, intensity, angle of arrival, etc. of the arrival signal, and then calculates the relative distance and relative angle of the UE and the base station.
  • the measurement results between multiple base stations can be combined to determine the location of the UE.
  • the coverage of the uplink reference signal sent by the UE is limited. Except for the serving base station to which the UE belongs, usually only a small number of neighboring base stations can receive the uplink reference signal sent by the UE, but the uplink positioning The technology usually requires the participation of multiple base stations to accurately determine the location of the UE.
  • the 3GPP standard introduces a location measurement unit (LMU) to assist in receiving the uplink reference signal sent by the UE.
  • LMU location measurement unit
  • the uplink reference signal sent by the UE in the prior art can be regarded as an omnidirectional transmission.
  • NR New Radio
  • the embodiments of the present application provide a positioning method and a communication device, which can solve the problem of how to determine the beam and transmission power of an uplink reference signal.
  • a positioning method applied to a position measurement unit LMU, including: sending a downlink reference signal to a user equipment UE, the downlink reference signal is used to determine at least one of a transmission beam and a transmission power of the uplink reference signal, The uplink reference signal is used for positioning the UE; and the uplink reference signal from the UE is received.
  • the LMU in the embodiment of the present application may directly send the downlink reference signal, so as to accurately determine the transmission beam or the transmission power of the uplink reference signal sent by the UE to the LMU. If the LMU itself does not have downlink reference signal resources, it can obtain resources through other entities. For example, the resources are allocated by entities such as a positioning server or a base station, that is, the downlink reference signal resources are allocated by other entities. The LMU can also directly allocate dedicated resources for sending the downlink reference signal when it leaves the factory.
  • the method before sending the downlink reference signal to the user equipment UE, the method further includes: acquiring transmission configuration information of the downlink reference signal; and the sending the downlink reference signal to the user equipment UE includes: according to the downlink reference signal.
  • the signal sending configuration information sends the downlink reference signal to the user equipment UE.
  • the acquiring the sending configuration information of the downlink reference signal includes: receiving the sending configuration information of the downlink reference signal from a positioning server.
  • the transmission configuration information of the downlink reference signal includes at least one of the following information: the bandwidth of the downlink reference signal, the transmission start time of the downlink reference signal (for example, the downlink reference signal The time when the transmission of the downlink reference signal starts, the system frame number at which the transmission of the downlink reference signal starts), the transmission end time of the downlink reference signal, the transmission period of the downlink reference signal, the number of transmission periods of the downlink reference signal, and The transmission duration of the downlink reference signal, the time domain resource of the downlink reference signal, the frequency domain resource of the downlink reference signal, the sequence information of the downlink reference signal, the beam information of the downlink reference signal, the downlink reference signal The potential coverage of the reference signal.
  • the transmission start time of the downlink reference signal for example, the downlink reference signal The time when the transmission of the downlink reference signal starts, the system frame number at which the transmission of the downlink reference signal starts
  • the transmission end time of the downlink reference signal the transmission period of the downlink reference signal, the number of transmission periods of the downlink
  • the method before the receiving the uplink reference signal from the UE, the method further includes: acquiring reception configuration information of the uplink reference signal; and receiving the uplink reference signal from the UE The method includes: receiving the uplink reference signal from the UE according to the receiving configuration information of the uplink reference signal.
  • the acquiring the receiving configuration information of the uplink reference signal includes: receiving the receiving configuration information of the uplink reference signal from the positioning server.
  • the reception configuration information of the uplink reference signal includes at least one of the following information: the bandwidth of the uplink reference signal, the transmission start time of the uplink reference signal (for example, the uplink reference signal The time when the transmission of the uplink reference signal starts, the system frame number at which the uplink reference signal starts to be transmitted), the transmission end time of the uplink reference signal, the transmission period of the uplink reference signal, the number of transmission periods of the uplink reference signal, and The transmission duration of the uplink reference signal, the time domain resource of the uplink reference signal, the frequency domain resource of the uplink reference signal, the sequence information of the uplink reference signal, the beam information of the uplink reference signal, the uplink reference signal The potential coverage of the reference signal, the recommended power information of the uplink reference signal, the measurement amount of the LMU measuring the uplink reference signal, the measurement period of the LMU measuring the uplink reference signal, the search window of the LMU measuring the uplink reference signal, the measurement information of the uplink reference signal The uncertainty of the reporting period, the reporting period offset of
  • the LMU receives the uplink reference signal according to the reception configuration information of the uplink reference signal.
  • the reception configuration information of the uplink reference signal may include the correspondence between the uplink reference signal and the downlink reference signal, that is, the transmission of the downlink reference signal can be used.
  • the receiving beam corresponding to the beam receives the corresponding uplink reference signal.
  • the method further includes: acquiring measurement information of the uplink reference signal according to the uplink reference signal, and the measurement information of the uplink reference signal includes the following information At least one of: the measurement result of the uplink reference signal measured by the LMU, the index of the uplink reference signal measured by the LMU, the identifier of the UE corresponding to the uplink reference signal measured by the LMU, the measurement frequency point of the uplink reference signal measured by the LMU, the uplink reference The time difference between the arrival time of the signal and the sending time of the downlink reference signal; sending the measurement information of the uplink reference signal to the positioning server.
  • a positioning method applied to user equipment UE, including: receiving a downlink reference signal from a position measurement unit LMU; acquiring at least one of a transmission beam and a transmission power of an uplink reference signal according to the downlink reference signal; The uplink reference signal is used for positioning the UE; and the uplink reference signal is sent to the LMU according to at least one of a transmission beam and a transmission power of the uplink reference signal.
  • the UE receives the downlink reference signal and can associate the downlink reference signal with the uplink reference signal. That is, the transmission beam of the uplink reference signal is the transmission beam corresponding to the reception beam of the downlink reference signal, and the transmission power of the uplink reference signal is The path loss information of the downlink reference signal corresponds to the transmission power.
  • the method before the receiving the downlink reference signal from the location measurement unit LMU, the method further includes: acquiring the receiving configuration information of the downlink reference signal; the receiving the downlink reference signal from the location measurement unit LMU includes: Receiving the downlink reference signal from the location measurement unit LMU according to the receiving configuration information of the downlink reference signal.
  • the acquiring the receiving configuration information of the downlink reference signal includes: receiving the receiving configuration information of the downlink reference signal from the positioning server.
  • the reception configuration information of the downlink reference signal includes at least one of the following information: the bandwidth of the downlink reference signal, the transmission start time of the downlink reference signal (for example, the downlink reference signal The time when the transmission of the downlink reference signal starts, the system frame number at which the transmission of the downlink reference signal starts), the transmission end time of the downlink reference signal, the transmission period of the downlink reference signal, the number of transmission periods of the downlink reference signal, and The transmission duration of the downlink reference signal, the time domain resource of the downlink reference signal, the frequency domain resource of the downlink reference signal, the sequence information of the downlink reference signal, the beam information of the downlink reference signal, the downlink reference signal The potential coverage of the reference signal, the measurement amount of the downlink reference signal measured by the UE, the measurement period of the UE measuring the downlink reference signal, the reporting period of the measurement information of the downlink reference signal, the reporting period offset of the measurement information of the downlink reference signal, and the downlink reference signal The reporting method of measurement information.
  • the obtaining at least one of the transmission beam and the transmission power of the uplink reference signal according to the downlink reference signal includes: obtaining measurement information of the downlink reference signal; and according to the downlink reference signal Obtain at least one of the transmission beam and transmission power of the uplink reference signal, or send the measurement information of the downlink reference signal to the positioning server, and the measurement information of the downlink reference signal is used to obtain the uplink reference At least one of the transmission beam and the transmission power of the signal.
  • the measurement information of the downlink reference signal includes at least one of the following information: the measurement result of the downlink reference signal measured by the UE, the index of the downlink reference signal measured by the UE, the identifier of the UE, and the information measured by the UE.
  • the measurement frequency of the downlink reference signal includes at least one of the following information: the measurement result of the downlink reference signal measured by the UE, the index of the downlink reference signal measured by the UE, the identifier of the UE, and the information measured by the UE.
  • the measurement frequency of the downlink reference signal includes at least one of the following information: the measurement result of the downlink reference signal measured by the UE, the index of the downlink reference signal measured by the UE, the identifier of the UE, and the information measured by the UE.
  • the method before the sending the uplink reference signal to the LMU according to at least one of the transmission beam and the transmission power of the uplink reference signal, the method further includes: acquiring a transmission configuration of the uplink reference signal Information; the sending the uplink reference signal to the LMU according to at least one of the transmission beam and the transmission power of the uplink reference signal includes: at least one of the transmission beam and the transmission power according to the uplink reference signal And sending configuration information of the uplink reference signal to send the uplink reference signal to the LMU.
  • the acquiring the transmission configuration information of the uplink reference signal includes: receiving the transmission configuration information of the uplink reference signal from the positioning server.
  • the transmission configuration information of the uplink reference signal includes at least one of the following information: the bandwidth of the uplink reference signal, the transmission start time of the uplink reference signal (for example, the uplink reference signal The time when the transmission of the uplink reference signal starts, the system frame number at which the uplink reference signal starts to be transmitted), the transmission end time of the uplink reference signal, the transmission period of the uplink reference signal, the number of transmission periods of the uplink reference signal, and The transmission duration of the uplink reference signal, the time domain resource of the uplink reference signal, the frequency domain resource of the uplink reference signal, the sequence information of the uplink reference signal, the beam information of the uplink reference signal, the uplink reference signal Potential coverage of the reference signal, and suggested power information of the uplink reference signal.
  • the bandwidth of the uplink reference signal for example, the uplink reference signal The time when the transmission of the uplink reference signal starts, the system frame number at which the uplink reference signal starts to be transmitted
  • the transmission end time of the uplink reference signal the transmission period of the uplink reference signal, the
  • a positioning method which is applied to a positioning server, and includes: sending transmission configuration information of a downlink reference signal to a position measurement unit LMU, where the downlink reference signal is used to determine the transmission beam and transmission power of the uplink reference signal.
  • the uplink reference signal is used to position the user equipment UE; the receiving configuration information of the downlink reference signal is sent to the UE; the sending configuration information of the uplink reference signal is sent to the UE; the uplink reference signal is sent to the LMU Receiving configuration information; receiving measurement information of uplink reference signals from the LMU.
  • the method before the sending configuration information of the downlink reference signal to the LMU, the method further includes: sending resource request information of the downlink reference signal to the target base station; receiving resource response information of the downlink reference signal from the target base station; Acquiring the sending configuration information of the downlink reference signal and the receiving configuration information of the downlink reference signal according to the resource response information of the downlink reference signal.
  • the method further includes: receiving measurement information of the downlink reference signal from the UE; and acquiring the uplink reference signal according to the measurement information of the downlink reference signal. At least one of the transmission beam and the transmission power of the reference signal; acquiring the transmission configuration information of the uplink reference signal according to at least one of the transmission beam and the transmission power of the uplink reference signal.
  • the method before the sending configuration information of the uplink reference signal to the UE, the method further includes: sending the resource request information of the uplink reference signal to the serving base station; and receiving the resource response of the uplink reference signal from the serving base station Information; acquiring the sending configuration information of the uplink reference signal and the receiving and sending configuration information of the uplink reference signal according to the resource response information of the uplink reference signal.
  • a positioning method applied to a base station, including: receiving resource request information of a downlink reference signal from a positioning server; sending resource response information of a downlink reference signal to the positioning server, and the resource of the downlink reference signal
  • the response information is used to determine the transmission configuration information of the downlink reference signal
  • the downlink reference signal is used to determine at least one of the transmission beam and the transmission power of the uplink reference signal
  • the uplink reference signal is used to position the user equipment UE.
  • a communication device which includes a unit for executing each step of the method in any one of the foregoing first to fourth aspects and the first to fourth aspects.
  • the communication device is a communication chip
  • the communication chip may include an input circuit or interface for sending information or data, and an output circuit or interface for receiving information or data.
  • the communication device is a communication device (such as LMU, UE, positioning server, base station), and the communication device may include a transmitter for sending information or data, and a receiver for receiving information or data. .
  • a communication device including a transceiver, a processor, and a memory.
  • the processor is used to control the transceiver to send and receive signals
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program from the memory, so that the communication device performs the first to fourth aspects and the first to fourth aspects Any one of the possible implementation methods.
  • processors there are one or more processors and one or more memories.
  • the memory may be integrated with the processor, or the memory and the processor may be provided separately.
  • a processor including an input circuit, an output circuit, and a processing circuit.
  • the processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes any one of the first aspect to the fourth aspect and any one of the first aspect to the fourth aspect Method in.
  • the above-mentioned processor may be a chip
  • the input circuit may be an input pin
  • the output circuit may be an output pin
  • the processing circuit may be a transistor, a gate circuit, a flip-flop, and various logic circuits.
  • the input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver
  • the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by the transmitter
  • the circuit can be the same circuit, which is used as an input circuit and an output circuit at different times.
  • the embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.
  • a processing device including a memory and a processor.
  • the processor is configured to read instructions stored in the memory, and can receive signals through a receiver, and transmit signals through a transmitter, so as to execute any one of the first aspect to the fourth aspect and the first aspect to the fourth aspect.
  • the method in the implementation mode.
  • processors there are one or more processors and one or more memories.
  • the memory may be integrated with the processor, or the memory and the processor may be provided separately.
  • the memory can be a non-transitory (non-transitory) memory, such as a read only memory (ROM), which can be integrated with the processor on the same chip, or can be set in different On the chip, the embodiment of the present application does not limit the type of memory and the setting mode of the memory and the processor.
  • ROM read only memory
  • a chip including a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program from the memory, the computer program is used to implement the first to fourth aspects Aspect and the method in any possible implementation manner of the first aspect to the fourth aspect.
  • a computer program product includes: a computer program (also called code, or instruction), which when the computer program is run, causes the computer to execute the first aspect to the first aspect above.
  • a computer program also called code, or instruction
  • the four aspects and the method in any one of the possible implementation manners of the first to fourth aspects.
  • a computer-readable medium stores a computer program (also called code, or instruction) when it runs on a computer, so that the computer executes the above-mentioned first aspect to The fourth aspect and the method in any one of the possible implementation manners of the first to fourth aspects.
  • a computer program also called code, or instruction
  • FIG. 1 is a diagram of a positioning network architecture provided by an embodiment of this application.
  • Figure 2 is a diagram of another positioning network architecture provided by an embodiment of the application.
  • FIG. 3 is a schematic flowchart of a method for acquiring downlink reference signal resources according to an embodiment of this application;
  • FIG. 4 is a schematic flowchart of a method for configuring, sending, receiving, and measuring a downlink reference signal according to an embodiment of this application;
  • FIG. 5 is a schematic flowchart of a method for acquiring uplink reference signal resources according to an embodiment of this application
  • FIG. 6 is a schematic flowchart of a method for configuring, sending, receiving, and measuring an uplink reference signal according to an embodiment of the application
  • FIG. 7 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • LMU Location measurement unit
  • the LMU can be integrated and deployed in the base station, or it can be deployed separately from the base station.
  • LMU is the name given in the existing 3GPP standards. With the development of technology, this entity may have other names, such as NR-LMU, or position auxiliary unit, auxiliary position unit, positioning auxiliary unit, auxiliary positioning unit, etc.
  • the LMU is used as the higher-level name of this type of entity, and the LMU sends downlink reference signals by borrowing resources allocated by other entities such as a positioning server or a base station.
  • It is used to collect measurement information or location information reported by the base station, LMU or UE, and can also perform location calculation according to the measurement information or location information to determine the location of the UE.
  • the base station serving the UE can provide uplink reference signal resources for the UE.
  • the base station may be replaced by a cell within the coverage area of the wireless network of the base station.
  • the “serving base station” is mentioned many times in the embodiments of this application, and the “serving base station” can be replaced by a cell within the coverage of the wireless network of the serving base station, for example, the “serving base station” is replaced by a “serving cell”.
  • “neighbor base stations” are mentioned many times in the embodiments of this application, and “neighbor base stations” can be replaced by cells within the coverage of the wireless network of the neighbor base stations.
  • “neighbor base stations” are replaced by "neighbor cells” or “non-serving cells”. (non-serving cell)” instead.
  • the base station that provides downlink reference signal resources for the LMU may be the serving base station of the UE, or other base stations other than the serving base station of the UE.
  • the beam is a communication resource.
  • the beam can be a wide beam, a narrow beam, or other types of beams.
  • the beam forming technology may be beamforming technology or other technology.
  • the beamforming technology can be digital beamforming technology, analog beamforming technology, hybrid digital/analog beamforming technology, etc.
  • Different beams can be different communication resources. The same information or different information can be sent through different beams.
  • multiple beams with the same or similar communication characteristics may be regarded as one beam.
  • a beam can include one or more antenna ports for transmitting data channels, control channels, and sounding signals.
  • a transmit beam can refer to the distribution of signal strength formed in different directions in space after a signal is transmitted by an antenna.
  • the receiving beam may refer to the signal strength distribution of the wireless signal received from the antenna in different directions in space. It is understandable that one or more antenna ports forming a beam can also be regarded as an antenna port set. The embodiment of the beam in the agreement can still be a spatial filter.
  • the reference signal is a kind of pilot signal, which is a known signal provided by the transmitting end to the receiving end for channel estimation or channel detection.
  • the uplink reference signal involved in the embodiment of the present application is sent by the UE and used for positioning the UE.
  • it can be a channel sounding reference signal (SRS) or an uplink positioning signal.
  • SRS channel sounding reference signal
  • the downlink reference signal involved in the embodiment of the present application is sent through the LMU, and is used to determine at least one of the transmission beam and the transmission power of the uplink reference signal sent by the UE.
  • it may be a channel state information reference signal (channel state information-reference signal, CSI-RS).
  • a positioning network architecture is a Long Term Evolution (LTE) network architecture (may also be referred to as a 4G network architecture).
  • the positioning network architecture includes: UE, evolved NodeB (Evolved NodeB, eNodeB), mobility management entity (Mobility Management Entity, MME), evolved service mobile location center (Evolved Serving Mobile Location Center, E-SMLC), LMU,
  • MME mobility management entity
  • E-SMLC evolved service mobile location center
  • LMU The interface between the E-SMLC and the LMU is a signaling link management (signaling link management, SLm) interface.
  • SLm signaling link management
  • E-SMLC can be used as a positioning server.
  • LTE positioning protocol LTE positioning protocol
  • LPPa LTE positioning protocol A
  • LPPa LTE positioning protocol A
  • the positioning network architecture includes: UE, gNodeB, access and mobility management function (AMF), location management function (Location Management Function, LMF), NR-LMU, among which LMF and NR-LMU The interface between is NR-SLm interface.
  • AMF access and mobility management function
  • LMF location management function
  • NR-LMU NR-LMU
  • LMF can be used as a positioning server.
  • NR positioning protocol NR Positioning Protocol, NRPP
  • NR Positioning Protocol A NR Positioning Protocol A, NRPPa
  • NRPP is the peer-to-peer positioning between the UE and the positioning server Protocol
  • NRPPa is a peer-to-peer positioning protocol between the base station and the positioning server.
  • the LMU sends a downlink reference signal to the UE
  • the UE sends an uplink reference signal to the LMU
  • the uplink reference signal is used to locate the position of the UE
  • the downlink reference signal is used to determine the transmission beam and transmission power of the uplink reference signal.
  • the resources of the downlink reference signal can be allocated by the target base station, can be allocated by the positioning server, can be allocated before the LMU leaves the factory, or can be allocated in other ways
  • the resources of the uplink reference signal can be allocated by the UE’s serving base station, or by the UE’s Neighboring base station allocation may also be allocated in other ways. It should be noted that the allocation subject of the downlink reference signal resource and the transmission subject of the downlink reference signal in the embodiment of the present application may be different.
  • the positioning server is LMF as an example for description, which is divided into four stages:
  • a schematic flowchart of a method for acquiring downlink reference signal resources includes:
  • the LMF determines the LMU that needs to participate in UE positioning and the target base station corresponding to the LMU.
  • the LMF can select all or part of the managed LMU to participate in UE positioning.
  • the target base station corresponding to the LMU can be pre-configured or configured according to the base station signal measurement results fed back by the LMU.
  • the LMF can request the LMU to measure the signal strength of surrounding base stations ( For example, the synchronization signal block (SSB) of surrounding base stations, the specific measurement object can be configured by the LMF, and the LMU can also be configured by itself for blind detection.
  • the LMU feeds back the measurement results of the base station signal to the LMF to assist the LMF in selecting the target base station
  • the LMF requests resources from the target base station based on the coverage and location of the LMU, which can reduce the interference of the downlink reference signal sent by the LMU and improve flexibility.
  • the LMF sends resource request information of the downlink reference signal to the target base station.
  • the LMF sends the resource request information of the downlink reference signal to the target base station through signaling (such as NRPPa signaling).
  • the resource request information may include: identification information of the UE to be located (such as UE ID) and spatial information of the UE to be located (such as Information of the serving base station where the UE is located, the current serving beam orientation, ID and other information of the UE, the measurement quality of the serving base station and neighboring base stations reported by the UE in history (such as the measurement results of the base station CSI-RS or SSB), request the downlink reference reserved by the target base station Signal related configuration information (resource sequence, resource bandwidth, resource quantity, time domain and frequency domain density, transmission start time or subframe number, end time or end subframe number, duration or number of durations, requested downlink reference signal Quantity and corresponding reference signal type (such as CSI-RS, SSB, PRS or other downlink reference signals), potential transmission location, etc.).
  • identification information of the UE to be located such as UE ID
  • the LMF can also inform the target base station of LMU related information involved in positioning, including the number of LMUs that need to participate in positioning, the number of beams of each LMU, the spatial orientation of each beam, the spatial position of the LMU, the maximum bandwidth supported by the LMU, and the corresponding downlink reference signal resources Requirements (such as the number of reference signals, period, bandwidth, sequence recommendations, etc.).
  • the LMF may request the target base station for multiple downlink reference signal groups, and each group is sent by one LMU, and the LMU uses different beams to send different reference signals of the group, for beam scanning and beam training.
  • the target base station sends resource response information of the downlink reference signal to the LMF.
  • the target base station feeds back the resource response information of the downlink reference signal to the LMF.
  • the resource response information of the downlink reference signal may include the downlink reference signal resource information allocated by the target base station: including resource sequence, resource bandwidth, resource quantity, time domain and frequency domain density, Start sending time (recommended relative time egSFN index or absolute time point), duration or number of duration periods, reference signal quantity type, silent period and silent mode configuration, recommended coverage area, etc.
  • a schematic flowchart of a method for configuring, sending, receiving, and measuring a downlink reference signal includes:
  • the LMF sends transmission configuration information of a downlink reference signal to the LMU.
  • the LMF can directly send the downlink reference signal transmission configuration information to the LMU, and the target base station can send the downlink reference signal transmission configuration information to the LMU, or it can send the downlink reference signal transmission configuration information to the LMU in other ways.
  • step S301 can trigger the target base station to send the sending configuration information of the downlink reference signal to the LMU.
  • the transmission configuration information of the downlink reference signal may include at least one of the following information: the bandwidth of the downlink reference signal, the transmission start time of the downlink reference signal (for example, the time when the downlink reference signal starts to be transmitted, the downlink reference signal) The system frame number of the reference signal at the start of transmission), the transmission end time of the downlink reference signal (for example, the time when the downlink reference signal ends, the system frame number of the downlink reference signal ends), the downlink reference signal The transmission period of the reference signal, the number of transmission periods of the downlink reference signal, the transmission duration of the downlink reference signal, the time domain resource of the downlink reference signal, the frequency domain resource of the downlink reference signal, the downlink reference The sequence information of the signal, the beam information of the downlink reference signal, and the potential coverage of the downlink reference signal.
  • the downlink reference signal transmission configuration information may associate the downlink reference signal with the reference signals of the surrounding base stations, and instruct the LMU to use the transmission beam associated with the receiving beam corresponding to the reference signal of the surrounding base station
  • the sending start time of the downlink reference signal may be specified by the time when the downlink reference signal starts to be sent or the system frame number at which the downlink reference signal starts to be sent, and the time when the downlink reference signal starts to be sent is a
  • the absolute moment is allocated by the serving base station or LMF.
  • the LMU determines the subframe to be sent according to the absolute moment; the system frame number at which the downlink reference signal starts to be sent is determined by the timing information of the designated base station, and the LMU receives and measures
  • the downlink reference signal sent by the designated base station determines the start time of the downlink reference signal sent by the LMU through the system frame number of the corresponding downlink reference signal.
  • the LMF sends the reception configuration information of the downlink reference signal to the UE.
  • the LMF can directly send the reception configuration information of the downlink reference signal to the UE, can send the reception configuration information of the downlink reference signal to the UE through the serving base station, or can send the reception configuration information of the downlink reference signal to the UE in other ways.
  • the reception configuration information of the downlink reference signal may include at least one of resource configuration information of the downlink reference signal, measurement configuration information of the downlink reference signal, and report configuration information of the downlink reference signal.
  • the resource configuration information of the downlink reference signal, the measurement configuration information of the downlink reference signal, and the report configuration information of the downlink reference signal can be sent independently, or can be combined and sent together.
  • the reception configuration information of the downlink reference signal can also be called other names, for example, it can be the measurement request information of the downlink reference signal, the configuration request information of the downlink reference signal, etc. This is not limited in the embodiment of the application, as long as the UE can perform the measurement based on the information. Downlink reference signal reception, measurement, measurement information reporting, etc.
  • the resource configuration information of the downlink reference signal may include at least one of the following information: the bandwidth of the downlink reference signal, the transmission start time of the downlink reference signal (for example, the time when the downlink reference signal starts to be transmitted, the downlink reference signal) The system frame number of the reference signal at the start of transmission), the transmission end time of the downlink reference signal (for example, the time when the downlink reference signal ends, the system frame number of the downlink reference signal ends), the downlink reference signal The transmission period of the reference signal, the number of transmission periods of the downlink reference signal, the transmission duration of the downlink reference signal, the time domain resource of the downlink reference signal, the frequency domain resource of the downlink reference signal, the downlink reference The sequence information of the signal, the beam information of the downlink reference signal, and the potential coverage of the downlink reference signal.
  • the measurement configuration information of the downlink reference signal may include at least one of the following information: the UE measures the measurement quantity of the downlink reference signal (the UE measures the departure angle of the downlink reference signal, the UE measures the arrival angle of the downlink reference signal, and the UE measures the arrival of the downlink reference signal. Time, the signal power of the UE measuring the downlink reference signal), and the measurement period of the UE measuring the downlink reference signal.
  • the reporting configuration information of the downlink reference signal may include at least one of the following information: the reporting period of the measurement information of the downlink reference signal, the reporting period offset of the measurement information of the downlink reference signal, and the reporting mode of the measurement information of the downlink reference signal.
  • the reporting period of the measurement information of the downlink reference signal can be in which subframe or time interval it is reported, or it can be reported every time T (T can be in milliseconds, subframes, or a specified time slot length); downlink
  • the reporting mode of the measurement information of the reference signal may be physical layer reporting or three-layer reporting.
  • the resource configuration information of the downlink reference signal, the measurement configuration information of the downlink reference signal, and the information included in the downlink reference signal listed above are only examples. In actual operation, adjustments can be made.
  • the UE can measure the downlink reference signal. The measurement value is sent to the UE as part of the reporting configuration information of the downlink reference signal, or the UE may not specify what information the measurement value of the downlink reference signal belongs to, and only instruct the UE to measure or report the corresponding measurement value.
  • the LMF can send the receiving configuration information of the downlink reference signal to the serving base station of the UE.
  • the receiving configuration information of the downlink reference signal also includes the measurement of the downlink reference signal Configuration information and reporting configuration information of the downlink reference signal, the information may also be referred to as downlink reference signal measurement request information, etc.
  • the serving base station of the UE configures the reception configuration information of the downlink reference signal to the UE through signaling (for example, radio resource control (RRC) or radio access network (RAN) positioning configuration message). If the base station in phase 1 is the serving base station, the LMF sending the downlink reference signal reception configuration information to the UE's serving base station can be executed in combination with step S302.
  • signaling for example, radio resource control (RRC) or radio access network (RAN) positioning configuration message.
  • the LMF may directly send the receiving configuration information of the downlink reference signal to the UE through NRPP signaling.
  • S404 The UE sends the measurement information of the downlink reference signal to the LMF.
  • the UE may directly send the measurement information of the downlink reference signal to the LMF, may send the measurement information of the downlink reference signal to the LMF through the serving base station, or may send the measurement information of the downlink reference signal to the LMF in other ways.
  • the UE may measure the downlink reference signal according to the reception configuration information of the downlink reference signal in step S402.
  • the measurement information of the downlink reference signal may include at least one of the following information: the measurement result of the downlink reference signal measured by the UE (the departure angle of the downlink reference signal measured by the UE, the arrival angle of the downlink reference signal measured by the UE, and the downlink reference signal measured by the UE The arrival time of the signal, the signal power of the downlink reference signal measured by the UE, the index of the downlink reference signal measured by the UE, the identifier of the UE, and the measurement frequency point of the downlink reference signal measured by the UE.
  • the measurement result of the downlink reference signal measured by the UE the departure angle of the downlink reference signal measured by the UE, the arrival angle of the downlink reference signal measured by the UE, and the downlink reference signal measured by the UE The arrival time of the signal, the signal power of the downlink reference signal measured by the UE, the index of the downlink reference signal measured by the UE, the identifier of the UE, and the measurement frequency point of the downlink reference signal measured by the
  • Stage 3 acquisition of uplink reference signal resources.
  • a schematic flowchart of a method for acquiring uplink reference signal resources includes:
  • LMF can provide some suggested resource information to the base station.
  • the LMF can inform the serving base station of the UE of the information of the downlink reference signal obtained in stage 1, and assist the serving base station in configuring the uplink reference signal.
  • the serving base station can use these downlink reference signals to configure the beam and direction of the uplink reference signal for the UE.
  • the LMF may determine the sending direction of the UE uplink reference signal according to the measurement result in step S404, and notify the serving base station.
  • the serving base station of the UE may also be notified of the information of the downlink reference signal, and the serving base station obtains the measurement information of the downlink reference signal through UE measurement, and determines the sending direction of the uplink reference signal.
  • the serving base station In the process of determining the configuration of the uplink reference signal by the serving base station, it can interact with the neighboring base station (for example, through the Xn interface).
  • the serving base station can provide some candidate configurations for neighboring base stations to choose.
  • S503 The serving base station sends resource response information of the uplink reference signal to the LMF.
  • a schematic flowchart of a method for configuring, sending, receiving, and measuring an uplink reference signal includes:
  • the LMF sends uplink reference signal sending configuration information to the UE.
  • the transmission configuration information of the uplink reference signal may include at least one of the following information: the bandwidth of the uplink reference signal, the transmission start time of the uplink reference signal (for example, the time when the uplink reference signal starts to be transmitted, the uplink reference signal) The system frame number of the reference signal at the start of transmission), the transmission end time of the uplink reference signal (for example, the time when the uplink reference signal ends, the system frame number of the uplink reference signal ends), the uplink reference signal The transmission period of the reference signal, the number of transmission periods of the uplink reference signal, the transmission duration of the uplink reference signal, the time domain resource of the uplink reference signal, the frequency domain resource of the uplink reference signal, the uplink reference The sequence information of the signal, the beam information of the uplink reference signal, the potential coverage of the uplink reference signal, and the recommended power information of the uplink reference signal.
  • the LMF can directly send the uplink reference signal reception configuration information to the LMU, can send the uplink reference signal reception configuration information to the LMU through the serving base station, or can send the uplink reference signal reception configuration information to the LMU in other ways.
  • the receiving configuration information of the uplink reference signal may include at least one of resource configuration information of the uplink reference signal, measurement configuration information of the uplink reference signal, and reporting configuration information of the uplink reference signal.
  • the resource configuration information of the uplink reference signal, the measurement configuration information of the uplink reference signal, and the report configuration information of the uplink reference signal can be sent independently, or can be combined and sent together.
  • the receiving configuration information of the uplink reference signal can also be called other names, for example, it can be the measurement request information of the uplink reference signal, the configuration request information of the uplink reference signal, etc. This is not limited in the embodiment of the application, as long as the LMU can perform the processing based on the information. Uplink reference signal reception, measurement, measurement information reporting, etc.
  • the resource configuration information of the uplink reference signal may include at least one of the following information: the bandwidth of the uplink reference signal, the transmission start time of the uplink reference signal (for example, the time when the uplink reference signal starts to be transmitted, the uplink reference signal) The system frame number of the reference signal at the start of transmission), the transmission end time of the uplink reference signal (for example, the time when the uplink reference signal ends, the system frame number of the uplink reference signal ends), the uplink reference signal The transmission period of the reference signal, the number of transmission periods of the uplink reference signal, the transmission duration of the uplink reference signal, the time domain resource of the uplink reference signal, the frequency domain resource of the uplink reference signal, the uplink reference The sequence information of the signal, the beam information of the uplink reference signal, the potential coverage of the uplink reference signal, and the recommended power information of the uplink reference signal.
  • the reporting configuration information of the uplink reference signal may include at least one of the following information: the reporting period of the measurement information of the uplink reference signal, the reporting period offset of the measurement information of the uplink reference signal, the reporting method of the measurement information of the uplink reference signal, and the uplink reference The uncertainty of the reference time of the signal's uplink relative arrival time RTOA and the arrival time of the uplink reference signal.
  • the reporting period of the uplink reference signal measurement information can be in which subframe or time interval it is reported, or it can be reported every time T (T can be in milliseconds, subframes, or the length of a specified time slot);
  • the reporting mode of the measurement information of the reference signal may be physical layer reporting or three-layer reporting.
  • S603 The UE sends an uplink reference signal to the LMU, and the LMU receives the uplink reference signal from the UE.
  • the LMU sends measurement information of the uplink reference signal to the LMF.
  • stage 1 there is no absolute sequence between stage 1 and stage 4, and there is no absolute sequence between steps in a stage. Many sequences can be flexibly adjusted according to the actual situation. If the serving base station and the target base station are the same For a base station, many steps can be combined or omitted.
  • the downlink reference signal is used to determine at least one of the transmission beam and the transmission power of the uplink reference signal.
  • the UE can measure the downlink reference signal to obtain the measurement information of the downlink reference signal, which can be based on the measurement of the downlink reference signal.
  • the information independently determines at least one of the transmission beam and transmission power of the uplink reference signal, and the measurement information of the downlink reference signal can also be reported to the positioning server, and the positioning server determines at least one of the transmission beam and transmission power of the uplink reference signal, and positioning After the server determines at least one of the transmission beam and the transmission power of the uplink reference signal, it can be sent to the UE and the LMU for sending and receiving the uplink reference signal.
  • the uplink reference signal can be associated with the downlink reference signal, that is, a downlink reference signal is selected for the transmission and reception of the uplink reference signal. For example, select the first downlink reference signal.
  • the transmission configuration information of the uplink reference signal in step S601 includes the beam information of the uplink reference signal.
  • the beam information can specify the first downlink reference signal, that is, instruct the UE to perform uplink according to the best receiving beam of the first downlink reference signal.
  • Reference signal transmission; the transmission configuration information of the uplink reference signal in step S601 includes the recommended power information of the uplink reference signal.
  • the recommended power information may specify the first downlink reference signal, that is, instruct the UE according to the first downlink reference signal
  • the path loss information determines the transmit power of the uplink reference signal.
  • the receiving configuration information of the uplink reference signal in step S602 includes the beam information of the uplink reference signal.
  • the beam information may specify the first downlink reference signal, that is, instruct the LMU to perform the uplink reference signal on the transmission beam of the first downlink reference signal. Received.
  • the subject that associates the uplink reference signal with the downlink reference signal is more flexible.
  • the UE can associate according to the measurement information of multiple downlink reference signals, the positioning server can associate, the serving base station can associate, and of course, other The device is associated.
  • the LMU If the LMU only sends one downlink reference signal to the UE, it can associate the downlink reference signal with the uplink reference signal by default.
  • the serving base station may associate the uplink reference signal allocated to the UE with the downlink reference signal, and then notify the LMF of the association information,
  • the information includes the corresponding relationship between the uplink reference signal and the downlink reference signal.
  • the reception configuration information of the uplink reference signal sent by the LMF to the LMU may include the association relationship, and the LMU may know which beam should be used to receive the uplink reference signal sent by the UE through the association relationship, for example, the association relationship is SRS#1 and If the CSI-RS#1 sent by the LMU is associated, the LMU can use the uplink beam (for example, the same beam weight) corresponding to the downlink beam sending CSI-RS#1 to receive the SRS#1 sent by the UE. Further, the LMU can also use the association relationship to perform round trip time (RTT) measurement.
  • RTT round trip time
  • the LMU measures the start of the subframe i of the uplink reference signal sent by the UE and the subframe i of the downlink reference signal sent by the LMU.
  • the LMU measures the time difference between the subframe i of the uplink reference signal sent by the UE and the starting point of the subframe j of the closest downlink reference signal sent by the LMU. If the serving base station and the target base station are the same base station, the association relationship determined by the serving base station may be included in the resource response information of the downlink reference signal in step S304, that is, the resource configuration of the downlink reference signal is fed back while the uplink reference signal and the downlink are fed back.
  • the corresponding relationship of the reference signal may also be included in the resource response information of the uplink reference signal in step S503, that is, the resource configuration of the uplink reference signal is fed back while the corresponding relationship between the uplink reference signal and the downlink reference signal is fed back.
  • the resource response information of the downlink reference signal sent by the target base station to the LMF in S304 may include the correspondence between the uplink reference signal and the downlink reference signal. For example, when the LMU only sends one downlink reference signal to the UE .
  • the LMU sends a downlink reference signal to the UE, and the UE sends an uplink reference signal to the LMU.
  • the resources of the downlink reference signal can be allocated by the base station or the positioning server.
  • the resources of the uplink reference signal are allocated by the base station.
  • the downlink reference signal is sent through the LMU, not through the base station or positioning server. Under normal circumstances, the LMU itself does not have the ability to allocate resources.
  • the positioning server in the embodiment of this application requests the LMU for resources of the downlink reference signal.
  • the LMU uses the resources requested by the positioning server to send the downlink reference signal.
  • the downlink reference signal sent by the LMU It can be used to determine at least one of the transmit beam and transmit power of the UE uplink reference signal, and can also be used to determine the receive beam of the LMU to receive the uplink reference signal.
  • phase 1 and phase 3 can be executed in combination, that is, the LMF requests the base station to allocate downlink reference signal resources and uplink reference signal resources at the same time, resource request information and resource response information
  • the LMF requests the base station to allocate downlink reference signal resources and uplink reference signal resources at the same time, resource request information and resource response information
  • the corresponding relationship between the downlink reference signal and the uplink reference signal may also be included.
  • the serving base station allocates resources of the uplink reference signal according to the measurement information of the downlink reference signal, for example, allocates the beam or transmission power of the uplink reference signal.
  • the LMU may not need to select the uplink reference signal receiving beam.
  • the LMU completes the uplink reference signal reception in the form of beam scanning, or the LMU has only one downlink beam, that is, only one corresponding receiver The beam, or the LMU clearly knows which receiving beam should be used (for example, the LMU uses a wide beam for transmission and reception and knows the approximate location of the UE in advance).
  • step S404 in the embodiment of this application can be omitted, that is, the UE is not required to report the measurement information of the downlink reference signal, and the UE is directly designated according to the beam corresponding to a certain downlink reference signal
  • the transmit power is used to transmit the uplink reference signal
  • the LMU is directly designated to receive the uplink reference signal according to the beam corresponding to a certain downlink reference signal.
  • the positioning method described in the embodiments of this application is specifically a method for determining the beam or transmission power of the uplink reference signal, which can be applied to various uplink positioning technologies, including but not limited to: based on measuring the time of arrival (time of arrival, TOA) ), uplink time of flight (TOF), uplink signal power, and other uplink positioning methods, such as uplink TOA positioning, uplink TOF positioning, enhanced cell ID positioning technology based on uplink measurement, etc.; based on uplink relative Uplink relative time of arrival (UL-RtoA) uplink arrival time difference positioning (Uplink time difference of arrival, UTDOA); uplink angle positioning based on uplink arrival angle measurement. It can also be applied to various positioning technologies involving sending uplink reference signals, including but not limited to: positioning technologies based on measurement variables such as round trip time (RTT), base station receiving and transmitting time difference, UE receiving and transmitting time difference.
  • RTT round trip time
  • the transmission beam and transmission power of the uplink reference signal can be determined according to the downlink reference signal. If it is applied to a low-frequency system (for example, FR1), then it can be determined according to the downlink reference signal
  • FR1 and FR2 represent the frequency range (Frequency Range, FR), corresponding to 750MHz-6000MHz (FR1) and 24250MHz-52600MHz (FR2) respectively.
  • the downlink reference signal for determining the transmission beam of the uplink reference signal and the downlink reference signal for determining the transmission power of the uplink reference signal may be the same or different.
  • the downlink reference signal used to determine the transmission beam of the uplink reference signal may also be referred to as the downlink reference signal used to determine the spatial transmission filter or spatial relation information (RS).
  • FIG. 7 is a schematic structural diagram of a communication device 10 provided by an embodiment of this application.
  • the communication device may be one of LMU, UE, positioning server, and base station, or may be a chip or
  • the circuit for example, may be provided in a chip or circuit of one of the LMU, UE, positioning server, and base station.
  • the communication device 7 may include a processing unit 11 and a storage unit 12, the storage unit 12 is used to store instructions, and the processing unit 11 is used to execute the instructions stored in the storage unit 12, so that the communication device 10 implements the LMU, Steps performed by one of the UE, the positioning server, and the base station.
  • the communication device 7 may also include an input port 13 and an output port 14.
  • the processing unit 11, the storage unit 12, the input port 13 and the output port 14 can communicate with each other through internal connection paths to transfer control and/or data signals.
  • the storage unit 12 is used to store a computer program, and the processing unit 11 can be used to call and run the calculation program from the storage unit 12 to control the input port 13 to receive signals and the output port 14 to send signals to complete the above method Steps performed by one of the LMU, UE, positioning server, and base station.
  • the storage unit 12 can be integrated in the processing unit 11 or can be provided separately from the processing unit 11.
  • the input port 13 is a receiver
  • the output port 14 is a transmitter.
  • the receiver and transmitter may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as transceivers.
  • the input port 13 is an input interface
  • the output port 14 is an output interface
  • the functions of the input port 13 and the output port 14 may be implemented by a transceiver circuit or a dedicated chip for transceiver.
  • the processing unit 11 may be implemented by a dedicated processing chip, a processing circuit, a processing unit, or a general-purpose chip.
  • a general-purpose computer may be considered to implement the receiving device provided in the embodiment of the present application.
  • the program codes that realize the functions of the processing unit 11, the input port 13 and the output port 14 are stored in the storage unit 12.
  • the general processing unit implements the functions of the processing unit 11, the input port 13 and the output port 14 by executing the code in the storage unit 12 .
  • the communication device 10 is an LMU
  • the output port 14 is used to send a downlink reference signal to the user equipment UE, where the downlink reference signal is used to determine at least one of the transmission beam and the transmission power of the uplink reference signal,
  • the uplink reference signal is used for positioning the UE;
  • the input port 14 is used for receiving the uplink reference signal from the UE.
  • the input port 14 is also used to obtain transmission configuration information of the downlink reference signal;
  • the output port 14 is used to send a downlink reference signal to the user equipment UE according to the sending configuration information of the downlink reference signal.
  • the input port 14 is used to receive the sending configuration information of the downlink reference signal from the positioning server.
  • the transmission configuration information of the downlink reference signal includes at least one of the following information: the bandwidth of the downlink reference signal, the transmission start time of the downlink reference signal (for example, the transmission start time of the downlink reference signal) Time, the system frame number at which the downlink reference signal starts to be transmitted), the transmission end time of the downlink reference signal, the transmission period of the downlink reference signal, the number of transmission periods of the downlink reference signal, the downlink reference signal.
  • the transmission duration of the downlink reference signal the time domain resource of the downlink reference signal, the frequency domain resource of the downlink reference signal, the sequence information of the downlink reference signal, the beam information of the downlink reference signal, the potential of the downlink reference signal Coverage.
  • the input port 14 before the input port 14 receives the uplink reference signal from the UE, the input port 14 is also used to obtain the receiving configuration information of the uplink reference signal; the output port 14 is used to obtain the uplink reference signal according to the uplink The reception configuration information of the reference signal receives the uplink reference signal from the UE.
  • the input port 14 is used to receive reception configuration information of the uplink reference signal from the positioning server.
  • the reception configuration information of the uplink reference signal includes at least one of the following information: the bandwidth of the uplink reference signal, the transmission start time of the uplink reference signal (for example, the transmission start time of the uplink reference signal) Time, the system frame number at which the uplink reference signal starts to be transmitted), the transmission end time of the uplink reference signal, the transmission period of the uplink reference signal, the number of transmission periods of the uplink reference signal, the uplink reference signal.
  • the transmission duration of the uplink reference signal the time domain resource of the uplink reference signal, the frequency domain resource of the uplink reference signal, the sequence information of the uplink reference signal, the beam information of the uplink reference signal, the potential of the uplink reference signal Coverage, the recommended power information of the uplink reference signal, the measurement amount of the LMU measuring the uplink reference signal, the measurement period of the LMU measuring the uplink reference signal, the search window of the LMU measuring the uplink reference signal, the reporting period of the measurement information of the uplink reference signal, The reporting period offset of the measurement information of the uplink reference
  • the input port 14 is further used to obtain the measurement information of the uplink reference signal according to the uplink reference signal, and the measurement information of the uplink reference signal includes the following At least one of the information: the measurement result of the uplink reference signal measured by the LMU, the index of the uplink reference signal measured by the LMU, the identifier of the UE corresponding to the uplink reference signal measured by the LMU, the measurement frequency point of the uplink reference signal measured by the LMU, the The time difference between the arrival time of the uplink reference signal and the sending time of the downlink reference signal; the output port 14 is also used to send the measurement information of the uplink reference signal to the positioning server.
  • the communication device 10 is a UE, and the input port 14 is used to receive the downlink reference signal from the position measurement unit LMU; the processing unit 11 is used to obtain the transmission beam and the uplink reference signal according to the downlink reference signal. At least one of the transmission power, the uplink reference signal is used to position the UE; the output port 14 is used to send the LMU to the LMU according to at least one of the transmission beam and the transmission power of the uplink reference signal Uplink reference signal.
  • the input port 14 before the input port 14 receives the downlink reference signal from the position measurement unit LMU, the input port 14 is also used to obtain the receiving configuration information of the downlink reference signal; The receiving configuration information receives the downlink reference signal from the position measurement unit LMU.
  • the input port 14 is used to receive reception configuration information of the downlink reference signal from the positioning server.
  • the reception configuration information of the downlink reference signal includes at least one of the following information: the bandwidth of the downlink reference signal, the transmission start time of the downlink reference signal (for example, the transmission start time of the downlink reference signal) Time, the system frame number at which the downlink reference signal starts to be transmitted), the transmission end time of the downlink reference signal, the transmission period of the downlink reference signal, the number of transmission periods of the downlink reference signal, the downlink reference signal.
  • the transmission duration of the downlink reference signal the time domain resource of the downlink reference signal, the frequency domain resource of the downlink reference signal, the sequence information of the downlink reference signal, the beam information of the downlink reference signal, the potential of the downlink reference signal Coverage, the measurement volume of the UE measuring the downlink reference signal, the measurement period of the UE measuring the downlink reference signal, the reporting period of the downlink reference signal measurement information, the reporting period offset of the downlink reference signal measurement information, and the measurement information of the downlink reference signal Reporting method.
  • the processing unit 11 is configured to obtain measurement information of the downlink reference signal, obtain at least one of the transmission beam and transmission power of the uplink reference signal according to the measurement information of the downlink reference signal, or
  • the processing is used to obtain the measurement information of the downlink reference signal, and send the measurement information of the downlink reference signal to the positioning server, and the measurement information of the downlink reference signal is used to obtain the transmission beam and transmission power of the uplink reference signal. At least one of them.
  • the measurement information of the downlink reference signal includes at least one of the following information: the measurement result of the downlink reference signal measured by the UE, the index of the downlink reference signal measured by the UE, the identifier of the UE, and the information of the downlink reference signal measured by the UE. Measurement frequency point.
  • the input port 14 is also used to obtain the uplink reference signal.
  • the output port 14 is configured to send the uplink reference signal to the LMU according to at least one of the transmission beam and transmission power of the uplink reference signal and the transmission configuration information of the uplink reference signal.
  • the input port 14 is used to receive the sending configuration information of the uplink reference signal from the positioning server.
  • the transmission configuration information of the uplink reference signal includes at least one of the following information: the bandwidth of the uplink reference signal, the transmission start time of the uplink reference signal (for example, the transmission start time of the uplink reference signal) Time, the system frame number at which the uplink reference signal starts to be transmitted), the transmission end time of the uplink reference signal, the transmission period of the uplink reference signal, the number of transmission periods of the uplink reference signal, the uplink reference signal.
  • the transmission duration of the uplink reference signal the time domain resource of the uplink reference signal, the frequency domain resource of the uplink reference signal, the sequence information of the uplink reference signal, the beam information of the uplink reference signal, the potential of the uplink reference signal Coverage and suggested power information of the uplink reference signal.
  • the communication device 10 is a positioning server
  • the output port 14 is used to send the transmission configuration information of the downlink reference signal to the position measurement unit LMU
  • the downlink reference signal is used to determine the transmission beam and transmission of the uplink reference signal.
  • the uplink reference signal is used to position the user equipment UE, send the reception configuration information of the downlink reference signal to the UE, send the transmission configuration information of the uplink reference signal to the UE, and send the uplink reference signal to the LMU.
  • Reference signal receiving and sending configuration information; the input port 14 is used to receive the measurement information of the uplink reference signal from the LMU.
  • the output port 14 before the output port 14 sends the sending configuration information of the downlink reference signal to the LMU, the output port 14 is also used to send the resource request information of the downlink reference signal to the target base station; the input port 14 is also used to receive For resource response information of the downlink reference signal from the target base station, the positioning server further includes a processing unit 11 configured to obtain the transmission configuration information and configuration information of the downlink reference signal according to the resource response information of the downlink reference signal Receiving configuration information of the downlink reference signal.
  • a processing unit 11 configured to obtain the transmission configuration information and configuration information of the downlink reference signal according to the resource response information of the downlink reference signal Receiving configuration information of the downlink reference signal.
  • the input port 14 is also used to receive downlink reference signal measurement information from the UE, and the positioning server further includes a processing unit 11.
  • the processing unit 11 is configured to obtain at least one of the transmission beam and transmission power of the uplink reference signal according to the measurement information of the downlink reference signal, and according to at least one of the transmission beam and transmission power of the uplink reference signal One obtains the sending configuration information of the uplink reference signal.
  • the positioning server further includes a processing unit 11 configured to obtain the transmission configuration of the uplink reference signal according to the resource response information of the uplink reference signal Information and the configuration information for receiving and sending the uplink reference signal.
  • the communication device 10 is a UE base station, and the input port 14 is used to receive resource request information of the downlink reference signal from the positioning server; the output port 14 is used to send the resource of the downlink reference signal to the positioning server Response information, the resource response information of the downlink reference signal is used to determine the transmission configuration information of the downlink reference signal, the downlink reference signal is used to determine at least one of the transmission beam and the transmission power of the uplink reference signal, the uplink reference signal Used to locate the user equipment UE.
  • the input port 14 is also used to receive resource request information of the uplink reference signal from the positioning server; the output port 14 is also used to send resource response information of the uplink reference signal to the positioning server.
  • the functions and actions of the modules or units in the apparatus 10 listed above are only exemplary descriptions, and the modules or units in the apparatus 10 can be used to execute the communication equipment (such as LMU, UE, positioning server, and base station in the above method).
  • the communication equipment such as LMU, UE, positioning server, and base station in the above method.
  • the processor in the embodiment of the present application may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), and application-specific integrated circuits. (application specific integrated circuit, ASIC), ready-made programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the memory in the embodiments of the present application may be volatile memory or 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 electronic 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
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • 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 Take memory (synchlink DRAM, SLDRAM) and direct memory bus random access memory (direct rambus RAM, DR RAM).
  • the above-mentioned embodiments can be implemented in whole or in part by software, hardware, firmware or any other combination.
  • the above-mentioned embodiments may be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions or computer programs.
  • the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that includes one or more sets of available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium.
  • the semiconductor medium may be a solid state drive.
  • the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, rather than corresponding to the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the device embodiments described above are only illustrative.
  • the division of the 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 It can be integrated into 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 be in electrical, mechanical or other forms.
  • 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.
  • the functional units in each embodiment 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. If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes.

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

Abstract

Les modes de réalisation de la présente invention concernent un procédé de positionnement, appliqué à une unité de mesure d'emplacement (LMU). Le procédé consiste à : envoyer un signal de référence de liaison descendante à un équipement utilisateur (UE), ledit signal de référence de liaison descendante étant utilisé pour déterminer au moins l'un d'un faisceau d'émission et d'une puissance d'émission d'un signal de référence de liaison montante, ledit signal de référence de liaison montante étant utilisé pour localiser l'UE ; et recevoir le signal de référence de liaison montante en provenance de l'UE. L'envoi direct du signal de référence de liaison descendante par la LMU permet de déterminer avec précision le faisceau d'émission ou la puissance d'émission d'un signal de référence de liaison montante envoyé par un UE à une LMU.
PCT/CN2020/074232 2019-02-15 2020-02-03 Procédé de positionnement, et appareil de communication WO2020164405A1 (fr)

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