WO2021036945A1 - 发送定位参考信号的方法和相关装置 - Google Patents
发送定位参考信号的方法和相关装置 Download PDFInfo
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- WO2021036945A1 WO2021036945A1 PCT/CN2020/110588 CN2020110588W WO2021036945A1 WO 2021036945 A1 WO2021036945 A1 WO 2021036945A1 CN 2020110588 W CN2020110588 W CN 2020110588W WO 2021036945 A1 WO2021036945 A1 WO 2021036945A1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/0009—Transmission of position information to remote stations
- G01S5/0045—Transmission from base station to mobile station
- G01S5/0063—Transmission from base station to mobile station of measured values, i.e. measurement on base station and position calculation on mobile
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- 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
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- 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
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- 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
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
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- 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
- H04L5/0078—Timing of allocation
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- 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
- H04L5/0096—Indication of changes in allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/28—Cell structures using beam steering
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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
- H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
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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
- H04W4/029—Location-based management or tracking services
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/02—Data link layer protocols
Definitions
- This application relates to the field of communication technology, and more specifically, to a method and related device for transmitting positioning reference signals.
- a terminal device In a downlink positioning scenario, if a terminal device needs to be positioned, multiple access network devices are required to send a positioning reference signal (positioning reference signal, PRS) for the terminal device.
- the terminal device can use the received reference signal to determine the location of the terminal device. For example, the terminal device can measure the time difference of arrival (TDOA) between the PRS from the access network device and the terminal device according to the received PRS, and use TDOA to determine the location of the terminal device.
- TDOA time difference of arrival
- the PRS sent by the access network equipment is sent periodically.
- the positioning results obtained by using periodic PRS for positioning measurement may not meet the required positioning accuracy.
- the present application provides a method and related device for transmitting positioning reference signals, which can improve positioning accuracy.
- an embodiment of the present application provides a method for transmitting a positioning reference signal, including: receiving identification information of a terminal device from a positioning management function LMF network element, positioning reference signal PRS indication information, and PRS identification information, the PRS The indication information is used to indicate to send the first PRS to the terminal device, the PRS identification information includes the identification of at least one second PRS, and the first PRS has a quasi co-located QCL association with one of the at least one second PRS Relationship, where the type of the first PRS does not include periodic PRS; sending the PRS identification information to the terminal device; sending the first PRS to the terminal device.
- the second PRS is a PRS that has been sent to the terminal device.
- the terminal device has already received the second PRS before receiving the first PRS.
- the type of the second PRS may be periodic PRS, aperiodic PRS, or semi-persistent PRS.
- the access network equipment in addition to sending periodic PRSs to terminal devices, can also send other types of PRSs. Therefore, more PRS can be sent to the terminal device. Correspondingly, more PRS can be used for positioning measurement. This can improve positioning accuracy.
- the first PRS has a QCL association relationship with a second PRS in the at least one second PRS.
- the LMF network element may notify the access network device of the identification of the at least one second PRS. The access network device forwards the identification of the at least one second PRS to the terminal device.
- the terminal device can determine a second PRS that has a QCL association relationship with the first PRS from the at least one second PRS, so as to receive the first PRS according to the spatial characteristic parameters of the second PRS. In this way, the terminal device can directly use the spatial characteristic parameter of the second PRS to receive the first PRS, without re-determining the spatial characteristic parameter for receiving the first PRS.
- sending the PRS identification information to the terminal device includes: sending a radio resource control RRC layer message to the terminal device, and the RRC layer message Carry the PRS identification information.
- the RRC layer message includes a channel state information aperiodic trigger state list information element, and the channel state information aperiodic trigger state list information element includes the PRS identification information.
- the foregoing technical solution may directly carry the PRS identification information through the channel state information aperiodic trigger state list information element, which may facilitate the notification of the identification of the at least one second PRS to the terminal device.
- the RRC layer message includes at least one transmission configuration indication state information element, and the identity of the at least one second PRS is respectively carried by the at least one transmission configuration indication state information element.
- the foregoing technical solution may not need to modify the format of the existing channel state information non-periodic trigger state list information element, but transmit the configuration indicating state information element to carry the identifier of the at least one second PRS. In this way, the modification to the existing agreement is minor.
- the transmission configuration indication status information element may also carry the type of QCL.
- the method further includes: sending downlink control information DCI to the terminal device, where the DCI is used to indicate the identity of the target second PRS, and the target second PRS is the at least one second PRS and the The first PRS has a second PRS with a QCL association relationship.
- the terminal device can determine the second PRS that has a QCL association relationship with the first PRS through the DCI.
- sending the PRS identification information to the terminal device includes: sending a medium access control MAC layer message to the terminal device, and the MAC layer message Including the PRS identification information.
- the MAC layer message includes a MAC subheader, and the MAC subheader includes the PRS identification information.
- the foregoing technical solution may directly carry the PRS identification information through the MAC subheader, which may facilitate the notification of the identification of the at least one second PRS to the terminal device.
- the MAC layer message includes a MAC subheader
- the MAC subheader includes at least one transmission configuration indication status information element
- the identification of the at least one second PRS is respectively determined by the at least one transmission configuration indication status information element carry.
- the above technical solution may not need to modify the format of the existing MAC subheader, but the identification of the at least one second PRS is carried by the transmission configuration indicating status information element. In this way, the modification to the existing agreement is minor.
- the transmission configuration indication status information element may also carry the type of QCL.
- the method further includes: sending a MAC control element CE to the terminal device, where the MAC CE is used to indicate the identity of the target second PRS, and the target second PRS is the one in the at least one second PRS and The first PRS has a second PRS with a QCL association relationship.
- the terminal device can determine the second PRS that has a QCL association relationship with the first PRS through the MAC CE.
- the method further includes: sending a non-zero power channel state information reference signal NZP-CSI-RS resource set information element to the terminal device, where the NZP-CSI-RS resource set information element includes positioning indication information ,
- the positioning indication information is used to indicate that the parameter included in the NZP-CSI-RS resource set element is used for positioning measurement.
- an embodiment of the present application provides a method for receiving a positioning reference signal.
- the method includes: receiving a positioning reference signal PRS identification information from an access network device, where the PRS identification information includes the identification of at least one second PRS.
- a PRS has a quasi-co-location QCL association relationship with a target second PRS, the target second PRS is a second PRS in the at least one second PRS, and the type of the first PRS does not include a periodic PRS;
- the PRS performs QCL association with the target second PRS to obtain a spatial characteristic parameter; according to the spatial characteristic parameter, the first PRS from the access network device is received.
- the second PRS is a PRS that has been sent to the terminal device.
- the terminal device has already received the second PRS before receiving the first PRS.
- the type of the second PRS may be periodic PRS, aperiodic PRS, or semi-persistent PRS.
- the terminal device in addition to the periodic PRS, can also receive other types of PRS. In other words, the number of PRS received by the terminal device has increased. Therefore, the terminal device can use more PRS for positioning measurement, which can improve positioning accuracy.
- the terminal device may determine, from the at least one second PRS, a second PRS that has a QCL association relationship with the first PRS, so as to receive the first PRS according to the spatial characteristic parameters of the second PRS. In this way, the terminal device can directly use the spatial characteristic parameter of the second PRS to receive the first PRS, without re-determining the spatial characteristic parameter for receiving the first PRS.
- the receiving positioning reference signal PRS identification information from the access network device includes: receiving a radio resource control RRC layer message from the access network device, the RRC layer message carrying the PRS identification information.
- the RRC layer message includes a channel state information aperiodic trigger state list information element, and the channel state information aperiodic trigger state list information element includes the PRS identification information.
- the foregoing technical solution may directly carry the PRS identification information through the channel state information aperiodic trigger state list information element, which may facilitate the notification of the identification of the at least one second PRS to the terminal device.
- the RRC layer message includes at least one transmission configuration indication state information element, and the identity of the at least one second PRS is respectively carried by the at least one transmission configuration indication state information element.
- the foregoing technical solution may not need to modify the format of the existing channel state information non-periodic trigger state list information element, but transmit the configuration indicating state information element to carry the identifier of the at least one second PRS. In this way, the modification to the existing agreement is minor.
- the transmission configuration indication status information element may also carry the type of QCL.
- the method before performing the QCL association between the first PRS and the target second PRS, the method further includes: receiving downlink control information DCI from the access network device, where the DCI is used to indicate the The identifier of the target second PRS determines that the type of the first PRS is aperiodic PRS. Based on the foregoing technical solution, the terminal device can determine the second PRS that has a QCL association relationship with the first PRS through the DCI.
- the receiving positioning reference signal PRS identification information from the access network device includes: receiving a medium access control MAC layer message from the access network device, the MAC layer message carrying the PRS identification information.
- the MAC layer message includes a MAC subheader, and the MAC subheader includes the PRS identification information.
- the foregoing technical solution may directly carry the PRS identification information through the MAC subheader, which may facilitate the notification of the identification of the at least one second PRS to the terminal device.
- the MAC layer message includes a MAC subheader
- the MAC subheader includes at least one transmission configuration indication status information element
- the identification of the at least one second PRS is respectively determined by the at least one transmission configuration indication status information element carry.
- the above technical solution may not need to modify the format of the existing MAC subheader, but the identification of the at least one second PRS is carried by the transmission configuration indicating status information element. In this way, the modification to the existing agreement is minor.
- the transmission configuration indication status information element may also carry the type of QCL.
- the method before the QCL association between the first PRS and the target second PRS, the method further includes: receiving a MAC control element CE from the access network device, where the MAC CE is used to indicate The identifier of the target second PRS determines that the type of the first PRS is a semi-persistent PRS. Based on the foregoing technical solution, the terminal device can determine the second PRS that has a QCL association relationship with the first PRS through the MAC CE.
- the method further includes: receiving a non-zero power channel state information reference signal NZP-CSI-RS resource set information element from the access network device, the NZP-CSI-RS resource set information element
- the positioning indication information is included, and the positioning indication information is used to indicate that the parameters included in the NZP-CSI-RS resource set element are used for positioning measurement.
- the above technical solution uses the existing NZP-CSI-RS resource set information element to notify the terminal device of the parameters used for positioning and measurement. Therefore, the above technical solution does not need to add a new information element to notify the parameters used for positioning and measurement, and has minor changes to the existing protocol.
- an embodiment of the present application provides a method for sending a positioning reference signal, including: sending identification information of a terminal device, positioning reference signal PRS indication information, and PRS identification information to an access network device, where the PRS indication information is used for Instructs to send a first PRS to the terminal device, the PRS identification information includes the identification of at least one second PRS, and the first PRS has a quasi co-located QCL association relationship with one of the at least one second PRS, wherein the The type of the first PRS does not include periodic PRS.
- the first PRS has a QCL association relationship with one of the at least one second PRS.
- the LMF network element may notify the access network device of the identification of the at least one second PRS.
- the access network device forwards the identification of the at least one second PRS to the terminal device.
- the terminal device can determine a second PRS that has a QCL association relationship with the first PRS from the at least one second PRS, so as to receive the first PRS according to the spatial characteristic parameters of the second PRS.
- the terminal device can directly use the spatial characteristic parameter of the second PRS to receive the first PRS, without re-determining the spatial characteristic parameter for receiving the first PRS.
- the second PRS is a PRS that has been sent to the terminal device.
- the terminal device has already received the second PRS before receiving the first PRS.
- the type of the second PRS may be periodic PRS, aperiodic PRS, or semi-persistent PRS.
- an embodiment of the present application provides a communication device, including a transceiver unit, a processing unit, and a storage unit.
- the processing unit is used to control the transceiver unit to send and receive signals
- the storage unit is used to store a computer program
- the processing unit is used to call and run the computer program from the storage unit, so that the communication device executes any of the above-mentioned method designs of the first aspect.
- the communication device may be an access network device or a component (for example, a chip, a circuit, etc.) for the access network device.
- the transceiver unit may be a transceiver.
- the processing unit may be a processor.
- the storage unit may be a memory.
- an embodiment of the present application provides a communication device, including a transceiver unit, a processing unit, and a storage unit.
- the processing unit is used to control the transceiver unit to send and receive signals
- the storage unit is used to store a computer program
- the processing unit is used to call and run the computer program from the storage unit, so that the communication device executes any of the above-mentioned method designs of the second aspect One possible implementation method.
- the communication device may be a terminal device or a component (such as a chip, a circuit, etc.) used in a terminal device.
- the transceiver unit may be a transceiver.
- the processing unit may be a processor.
- the storage unit may be a memory.
- an embodiment of the present application provides a communication device, including a transceiver unit, a processing unit, and a storage unit.
- the processing unit is used to control the transceiver unit to send and receive signals
- the storage unit is used to store a computer program
- the processing unit is used to call and run the computer program from the storage unit, so that the communication device executes the method of the third aspect described above.
- the communication device may be an LMF network element or a component (such as a chip, a circuit, etc.) for the LMF network element.
- the transceiver unit may be a transceiver.
- the processing unit may be a processor.
- the storage unit may be a memory.
- an embodiment of the present application provides an access network device, including a transceiver and a processor.
- the access network device further includes 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 access network device executes any one of the above-mentioned method designs of the first aspect Methods in possible implementations.
- an embodiment of the present application provides a terminal device, including a transceiver and a processor.
- the terminal device further includes 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 terminal device executes any one of the above-mentioned method designs of the second aspect. The method in the implementation mode.
- an embodiment of the present application provides an LMF network element, including a transceiver and a processor.
- the LMF network element further includes 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 LMF network element executes the method of the third aspect described above.
- an embodiment of the present application provides a communication system, which includes the access network device of the seventh aspect, the terminal device of the eighth aspect, and the LMF network element of the ninth aspect.
- an embodiment of the present application provides a communication device.
- the communication device may be an access network device used to implement the method design in the first aspect described above, or a chip set in the access network device.
- the communication device includes a processor, which is coupled with a memory, and can be used to execute a computer program in the memory to implement the method in any one of the possible implementation manners in the method design of the first aspect described above.
- the communication device further includes a memory.
- the communication device further includes a communication interface, and the processor is coupled with the communication interface.
- the communication interface may be a transceiver, or an input/output interface.
- the communication interface may be an input/output interface.
- the transceiver may be a transceiver circuit.
- the input/output interface may be an input/output circuit.
- an embodiment of the present application provides a communication device, and the communication device may be a terminal device used to implement the method design in the second aspect described above, or a chip set in the terminal device.
- the communication device includes a processor, which is coupled with a memory, and can be used to execute a computer program in the memory to implement the method in any one of the possible implementation manners in the method design of the second aspect described above.
- the communication device further includes a memory.
- the communication device further includes a communication interface, and the processor is coupled with the communication interface.
- the communication interface may be a transceiver, or an input/output interface.
- the communication interface may be an input/output interface.
- the transceiver may be a transceiver circuit.
- the input/output interface may be an input/output circuit.
- an embodiment of the present application provides a communication device.
- the communication device may be an LMF network element used to implement the method design of the third aspect described above, or a chip set in the LMF network element.
- the communication device includes a processor, which is coupled with a memory, and can be used to execute a computer program in the memory to implement any one of the possible implementation methods in the method design of the third aspect.
- the communication device further includes a memory.
- the communication device further includes a communication interface, and the processor is coupled with the communication interface.
- the communication interface may be a transceiver, or an input/output interface.
- the communication interface may be an input/output interface.
- the transceiver may be a transceiver circuit.
- the input/output interface may be an input/output circuit.
- an embodiment of the present application provides a computer program product, the computer program product includes: computer program code, when the computer program code runs on a computer, the computer executes the method design of the first aspect above Any one of the possible implementation methods.
- an embodiment of the present application provides a computer program product, the computer program product includes: computer program code, when the computer program code runs on a computer, the computer executes the method design of the second aspect above Any one of the possible implementation methods.
- embodiments of the present application provide a computer program product, the computer program product comprising: computer program code, when the computer program code runs on a computer, the computer executes the method in the third aspect.
- an embodiment of the present application provides a computer-readable medium, the computer-readable medium stores program code, and when the computer program code runs on a computer, the computer executes the method design of the above-mentioned first aspect Any one of the possible implementation methods.
- an embodiment of the present application provides a computer-readable medium, the computer-readable medium storing program code, when the computer program code runs on a computer, the computer executes the method design of the second aspect above Any one of the possible implementation methods.
- an embodiment of the present application provides a computer-readable medium, the computer-readable medium stores program code, and when the computer program code runs on a computer, the computer executes the method in the third aspect. .
- FIG. 1 is a schematic diagram of a wireless communication system 100 applicable to an embodiment of the present application.
- Fig. 2 is a schematic flowchart of a method for sending a positioning reference signal according to an embodiment of the present application.
- Figure 3 is a schematic diagram of the structure of a MAC subheader.
- Figure 4 is a schematic diagram of another MAC subheader structure.
- Figure 5 shows a simplified schematic diagram of the LMF network element structure.
- Figure 6 shows a simplified schematic diagram of the structure of the access network equipment.
- Figure 7 shows a simplified schematic diagram of the structure of the terminal device.
- information, signal, message, and channel can sometimes be used together. It should be noted that the meanings to be expressed are the same when the differences are not emphasized. “Corresponding (relevant)” and “corresponding” can sometimes be used interchangeably. It should be pointed out that when the difference is not emphasized, the meanings to be expressed are the same.
- the subscript sometimes as W 1 may form a clerical error at non-target as W1, while not emphasize the difference, to express their meaning is the same.
- references described in this specification to "one embodiment” or “some embodiments”, etc. mean that one or more embodiments of the present application include a specific feature, structure, or characteristic described in conjunction with the embodiment. Therefore, the sentences “in one embodiment”, “in some embodiments”, “in some other embodiments”, “in some other embodiments”, etc. appearing in different places in this specification are not necessarily All refer to the same embodiment, but mean “one or more but not all embodiments” unless it is specifically emphasized otherwise.
- the terms “including”, “including”, “having” and their variations all mean “including but not limited to”, unless otherwise specifically emphasized.
- At least one refers to one or more, and “multiple” refers to two or more.
- “And/or” describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
- the character “/” generally indicates that the associated objects before and after are in an “or” relationship.
- the following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
- at least one item (a) of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
- GSM Global System of Mobile Communication
- CDMA Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- GSM Global System of Mobile Communication
- GPRS General Packet Radio Service
- LTE Long Term Evolution
- FDD Frequency Division Duplex
- TDD Time Division Duplex
- UMTS Universal Mobile Telecommunication System
- WiMAX Worldwide Interoperability for Microwave Access
- 5G 5th Generation
- 5NR New Radio
- the terminal equipment in the embodiments of this application may refer to user equipment, access terminals, user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device.
- the terminal device can also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), and wireless communication.
- SIP Session Initiation Protocol
- WLL Wireless Local Loop
- PDA Personal Digital Assistant
- Functional handheld devices computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network or future evolution of the public land mobile network (Public Land Mobile Network, PLMN) Terminal equipment, etc., which are not limited in the embodiment of the present application.
- PLMN Public Land Mobile Network
- the terminal device may include: a radio resource control (radio resource control, RRC) signaling interaction module, a media access control (media access control, MAC) signaling interaction module, and physical (PHY) signaling Interactive module.
- RRC radio resource control
- MAC media access control
- PHY physical
- the RRC signaling interaction module may be: a module used by network equipment and terminal equipment to send and receive RRC signaling.
- the MAC signaling interaction module may be a module used by network equipment and terminal equipment to send and receive media access control control element (MAC-CE) signaling.
- the PHY signaling and data may be a module used by network equipment and terminal equipment to send and receive uplink control signaling or downlink control signaling, uplink and downlink data or downlink data.
- the access network device in the embodiment of the application may be a device used to communicate with terminal devices, and the access network device may be a global system of mobile communication (GSM) system or a code division multiple access (Code Division Multiple) system.
- the base station (Base Transceiver Station, BTS) in Access, CDMA can also be the base station (NodeB, NB) in the Wideband Code Division Multiple Access (WCDMA) system, or the evolution of the LTE system
- a type of base station (Evolutional NodeB, eNB, or eNodeB) can also be a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN) scenario, or the network device can be a relay station, an access point, a vehicle-mounted device, or a wireless controller.
- Wearable devices and access network equipment in the future 5G network for example, gNB) or access network equipment in the future evolved PLMN network, etc., are not limited in the embodiment of the present application.
- the network equipment may also include: an RRC signaling interaction module, a MAC signaling interaction module, and a PHY signaling interaction module.
- the network device may include a centralized unit (CU) and a distributed unit (DU).
- the network device may also include an active antenna unit (AAU).
- CU implements some functions of network equipment, and DU implements some functions of network equipment.
- CU is responsible for processing non-real-time protocols and services, implementing radio resource control (RRC), and packet data convergence protocol, PDCP) layer function.
- RRC radio resource control
- PDCP packet data convergence protocol
- the DU is responsible for processing the physical layer protocol and real-time services, and realizes the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer.
- RLC radio link control
- MAC media access control
- PHY physical layer
- the network device may be a device that includes one or more of a CU node, a DU node, and an AAU node.
- the CU can be divided into network equipment in an access network (radio access network, RAN), and the CU can also be divided into network equipment in a core network (core network, CN), which is not limited in this application.
- the embodiment of the beam in the NR protocol can be a spatial filter, or a spatial filter or a spatial parameter.
- the beam used to transmit a signal can be called a transmission beam (Tx beam), can be called a spatial domain transmit filter or a spatial transmission parameter (spatial domain transmit parameter); the beam used to receive a signal can be It is called a receive beam (reception beam, Rx beam), which can be called a spatial domain receive filter.
- Transmitting beam may refer to the distribution of signal strength in different directions in space after a signal is transmitted through an antenna
- receiving beam may refer to the signal strength distribution of wireless signals received from the antenna in different directions in space.
- the beam may be a wide beam, or a narrow beam, or other types of beams.
- the beam forming technology may be beamforming technology or other technologies.
- the beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, or a hybrid digital/analog beamforming technology, etc. Different beams can be considered as different resources. The same information or different information can be sent through different beams.
- multiple beams with the same or similar communication characteristics are regarded as one beam.
- One or more antenna ports can be included in a beam, which are used to transmit data channels, control channels, and sounding signals.
- One or more antenna ports forming a beam can also be regarded as an antenna port set.
- the beam pairing relationship that is, the pairing relationship between the transmitting beam and the receiving beam, that is, the pairing relationship between the spatial transmitting filter and the spatial receiving filter.
- a larger beamforming gain can be obtained by transmitting signals between the transmitting beam and the receiving beam with a beam pairing relationship.
- the transmitting end and the receiving end may obtain the beam pairing relationship through beam training.
- the transmitting end may send the reference signal by beam scanning, and the receiving end may also receive the reference signal by beam scanning.
- the transmitting end can form beams with different directivities in space through beamforming, and can poll on multiple beams with different directivities to transmit the reference signal through beams with different directivities, so that The power of the reference signal transmitted in the direction of the transmitting beam can reach the maximum.
- the receiving end can also form beams with different directivities in space through beamforming, and can poll on multiple beams with different directivities to receive reference signals through beams with different directivities, so that the receiving end can receive The power of the reference signal can reach the maximum in the direction in which the receiving beam points.
- the receiving end can perform channel measurement based on the received reference signal, and report the measurement result to the transmitting end through channel state information (CSI).
- CSI channel state information
- the receiving end can report a part of the reference signal resource with a larger reference signal receiving power (RSRP) to the sending end, such as reporting the identifier of the reference signal resource, so that the sending end can use the channel when transmitting data or signaling.
- RSRP reference signal receiving power
- Antenna port is abbreviated as port. It can be understood as a transmitting antenna recognized by the receiving end, or a transmitting antenna that can be distinguished in space.
- One antenna port can be configured for each virtual antenna, and each virtual antenna can be a weighted combination of multiple physical antennas.
- antenna ports can be divided into reference signal ports and data ports.
- the reference signal port includes, but is not limited to, a demodulation reference signal (demodulation reference signal, DMRS) port, a zero-power channel state information reference signal trigger (channel state information reference signal, CSI-RS) port, and the like.
- the antenna port may refer to a DMRS port (DMRS port).
- DMRS port DMRS port
- the time-frequency resources occupied by the DMRS of different DMRS ports may be different, or the orthogonal cover codes may be different.
- the terminal device may receive the DMRS based on the port indicated by the network device, and demodulate the PDCCH or PDSCH based on the received DMRS.
- the parameter related to the antenna port may be a DMRS port, a DMRS port group (DMRS port group), or a DMRS code division multiplexing (CDM) group (DMRS CDM) group.
- the terminal device may determine the DMRS port based on the antenna port indicated in the Downlink Control Information (DCI), and then determine the DMRS port group or DMRS code division multiplexing group to which it belongs.
- DCI Downlink Control Information
- the DMRS port group and the DMRS code division multiplexing group can be understood to be obtained by grouping the DMRS ports in different ways.
- Antenna ports, DMRS ports, DMRS port groups, and DMRS code division multiplexing groups can be distinguished by indexes, can also be distinguished by identifiers, or can be distinguished by other information that can be used to distinguish different ports or different groups. This is not limited.
- the port and the DMRS port are sometimes used interchangeably. It should be understood that in the embodiment of the present application, the port means a DMRS port.
- Quasi-co-location can also be called quasi-co-location or co-location.
- QCL information may also be referred to as QCL hypothesis information.
- the QCL information is used to assist in describing the terminal equipment receiving beamforming information and the receiving process.
- QCL information can be used to indicate the QCL relationship between two reference signals, where the target reference signal can generally be a demodulation reference signal (DMRS), a channel state information reference signal (CSI-RS) ), positioning reference signal (positioning reference signal, PRS), etc., and the reference signal or source reference signal being quoted can generally be CSI-RS, synchronous signal broadcast channel block (synchronous signal/PBCH block, SSB), sounding reference signal (sounding reference signal, SRS) etc.
- CSI-RS synchronous signal broadcast channel block
- SSB synchronous signal broadcast channel block
- SRS sounding reference signal
- tracking reference signal tracking reference signal
- TRS tracking reference signal
- the target reference signal may generally be a downlink signal.
- the terminal device may consider that the spatial characteristic parameters of the two reference signals having the QCL association relationship are the same, so that the spatial characteristic parameters of the target reference signal can be inferred based on the identifier of the source reference signal (also referred to as the source reference signal resource index).
- the spatial characteristic parameters can include one or more of the following parameters: angle of incidence (angle of arrival, AoA), dominant (dominant) incidence angle AoA, average incidence angle, power angular spectrum (PAS) of incidence angle , Angle of departure (AoD), main exit angle, average exit angle, power angle spectrum of exit angle, terminal equipment transmit beamforming, terminal equipment receive beamforming, spatial channel correlation, network equipment transmit beamforming, network Device receiving beamforming, average channel gain, average channel delay (average delay), delay spread (delay spread), Doppler spread (Doppler spread), Doppler shift (doppler shift), spatial reception parameters (spatial) Rx parameters) and so on.
- the above-mentioned angle may be decomposition values of different dimensions, or a combination of decomposition values of different dimensions.
- the antenna ports may be antenna ports with different antenna port numbers, and/or antenna ports with the same antenna port number for information transmission or reception in different time and/or frequency and/or code domain resources, and/or Different antenna port numbers are used to transmit or receive information in different time and/or frequency and/or code domain resources.
- These spatial characteristic parameters describe the spatial channel characteristics between the antenna ports of the source reference signal and the target reference signal, and help the terminal device to complete the receiving-side beamforming or receiving processing process according to the QCL information. It should be understood that the terminal device can receive the target reference signal according to the receiving beam information of the source reference signal indicated by the QCL information; these spatial characteristic parameters also help the terminal device to complete the beamforming or transmission process at the transmitting side according to the spatial related information. It should be understood that the terminal device may transmit the target reference signal according to the transmit beam information of the source reference signal indicated by the spatial related information.
- the network device can configure one or more types of QCL for the terminal device at the same time.
- the QCL type configured by the network device for the terminal device can be type A and type D, or network device configuration
- the QCL type for the terminal device can be type C and type D:
- QCL types A Doppler shift, Doppler spread, average delay, delay spread
- the QCL relationship refers to the QCL relationship of type D
- it can be considered as an airspace QCL.
- the antenna port satisfies the spatial QCL relationship, it can be the QCL relationship between the downlink signal port and the downlink signal port, or the QCL relationship between the uplink signal port and the uplink signal port (referred to as spatial relation above), which can be two
- the two signals have the same AOA or AOD, which is used to indicate that they have the same receiving beam or transmitting beam.
- the AOA and AOD of the two signals may have a corresponding relationship, or the AOD and AOA of the two signals may have a corresponding relationship, that is, the beam can be used Reciprocity
- the uplink transmit beam is determined according to the downlink receive beam
- the downlink receive beam is determined according to the uplink transmit beam.
- the two antenna ports are spatial QCL, it can mean that the corresponding beam directions of the two antenna ports are spatially consistent. From the perspective of the receiving end, if the two antenna ports are spatial QCL, it can mean that the receiving end can receive the signals sent by the two antenna ports in the same beam direction.
- the signal transmitted on the port with the spatial QCL association relationship may also have a corresponding beam, and the corresponding beam may include at least one of the following: the same receiving beam, the same transmitting beam, and the transmitting beam corresponding to the receiving beam (corresponding to the reciprocity Scene), the receiving beam corresponding to the transmitting beam (corresponding to the scene with reciprocity).
- the signal transmitted on the port with the spatial QCL association relationship can also be understood as using the same spatial filter to receive or transmit the signal.
- the spatial filter may be at least one of the following: precoding, weight of the antenna port, phase deflection of the antenna port, and amplitude gain of the antenna port.
- the signal transmitted on the port with the spatial QCL association relationship can also be understood as having a corresponding beam pair link (BPL), and the corresponding BPL includes at least one of the following: the same downlink BPL, the same uplink BPL, and the downlink BPL The corresponding uplink BPL, the downlink BPL corresponding to the uplink BPL.
- BPL beam pair link
- FIG. 1 is a schematic diagram of a wireless communication system 100 applicable to an embodiment of the present application.
- the wireless communication system 100 may include at least one access network device, such as the access network device 102, the access network device 103, and the access network device 104 shown in FIG. It may include at least one terminal device, such as the terminal device 101 shown in FIG. 1. Both network equipment and terminal equipment can be configured with multiple antennas, and the network equipment and terminal equipment can communicate using multiple antenna technology.
- the wireless communication system 100 may also include a location management function (location management function, LMF) network element 105.
- the LMF network element 105 can be used to implement position estimation of the terminal device.
- the LMF network element 105 may be deployed inside the core network, that is, the LMF network element 105 also belongs to a core network element.
- the LMF network element 105 can communicate with the access network device through a mobility management function (access and mobility management function, AMF) network element (not shown in the figure).
- AMF access and mobility management function
- the LMF network element sending information to the access network device through the AMF network element is referred to as the LMF network element sending information to the access network device for short.
- the message sent by the LMF network element to the access network device in the embodiments of this application can be understood as the LMF network element first sends the information to the AMF network element, and the AMF network element forwards the information to the access network element. ⁇ Net equipment.
- the LMF network element 105 can also communicate with the terminal device 101.
- the LMF network element 105 may communicate with the terminal device 101 through the LTE positioning protocol (LTE positioning protocol, LPP).
- LTE positioning protocol LTE positioning protocol, LPP
- part of the functions of the LMF network element 105 may be integrated in the access network device.
- a location management component LMC
- the access network device 102, the access network device 103, and the access network device 104 all integrate LMC.
- the LMC of the LMF network element integrated in the access network device sending information to the access network device can also be regarded as the LMF network element sending information to the access network device.
- the network devices and terminal devices that interact in the wireless communication system 100 and the following communication methods are network devices and terminal devices, respectively. Description. When part of the content in the following relates to the network device and the terminal device as components in the network device and the terminal device respectively, it should not be understood as the network device and the terminal device themselves.
- Fig. 2 is a schematic flowchart of a method for sending a positioning reference signal according to an embodiment of the present application.
- the method shown in FIG. 2 can be applied to the wireless communication system 100 shown in FIG. 1.
- the method shown in Figure 2 is described in terms of LMF network elements, access network equipment and terminal equipment.
- the steps in the method shown in Figure 2 can also be composed of components in LMF network elements (such as chips or circuits), components in access network equipment (such as chips or circuits), and components in terminal equipment (such as chips or circuits). carried out.
- the LMF network element sends the identification information of the terminal device, the PRS indication information, and the PRS identification information to the access network device.
- the access network device receives the identification information of the terminal device, the PRS indication information, and the PRS identification information sent by the LMF network element.
- the access network device may be an access network device that provides services for the terminal device.
- the access network device may be the service access network device of the terminal device.
- the access network device that provides services for the terminal device 101 is the access network device 102.
- the LMF network element 105 may send the identification information of the terminal device 101, the PRS indication information, and the PRS identification information to the access network device 102.
- the identification information of the terminal device may be information that can be used to identify the identity of a terminal device.
- the identification information of the terminal device may be International Mobile Subscriber Identity (IMSI), or International Mobile Equipment Identity (IMEI), or Temporary Mobile Subscriber Identity (IMEI). Identity, TMSI) and so on.
- IMSI International Mobile Subscriber Identity
- IMEI International Mobile Equipment Identity
- IMEI Temporary Mobile Subscriber Identity
- TMSI Temporary Mobile Subscriber Identity
- the PRS indication information is used to indicate to send the first PRS to the terminal device.
- the types of PRS may include periodic PRS, aperiodic PRS, semi-persistent PRS, and so on.
- the sending period and location of the periodic PRS are all configured.
- the Enhanced Serving Mobile Location Center (E-SMLC) can configure the transmission period and location of the periodic PRS, and notify the terminal through the information element (IE) of the configured transmission cycle and location equipment.
- the terminal device After receiving the IE, the terminal device can determine the period and position for receiving the periodic PRS, and receive the PRS in the corresponding period and position.
- the type of the first PRS does not include periodic PRS.
- the type of the first PRS is a type of PRS other than the periodic PRS.
- the type of the first PRS may be aperiodic PRS or semi-persistent PRS.
- Aperiodic PRS and semi-persistent PRS can be called enhanced PRS.
- the PRS identification information includes the identification of at least one second PRS.
- the second PRS is the PRS that has been sent to the terminal device.
- the type of the second PRS may be periodic PRS, aperiodic PRS, or semi-persistent PRS.
- the first PRS has a QCL association relationship with one of the at least one second PRS. In other words, the spatial characteristic parameters of the first PRS and one of the at least one second PRS are the same.
- the identifier of the second PRS may be a resource ID (resource ID) of the second PRS.
- the LMF network element may also send non-zero power (Non-Zero-Power, NZP)-Channel State Information (CSI)-Reference Signal (RS) resources to the access network device Resource set IE.
- NZP-CSI-RS resource set IE may include positioning indication information.
- the value of the positioning indication information is the first predetermined value (for example, the predetermined value is true, or 1, or 11, etc.), it means that each parameter in the NZP-CSI-RS resource set information element (for example, NZP-CSI-RS resource set, repetition indication, aperiodic Triggering Offset (aperiodic TriggeringOffset), transmission information (transmission information, tra-Info), etc.) are parameters used for positioning measurement; if the positioning information indicates information The value of is the second preset value (for example, false, or 0, or 00, etc.) or the NZP-CSI-RS resource set IE does not include the positioning indication information, it means that the NZP-CSI-RS resource Each parameter in the set IE is a parameter used for CSI measurement.
- the LMF network element may also send a dedicated IE for positioning and measurement to the access network device.
- the positioning measurement dedicated IE may include parameters for positioning measurement, such as NZP-CSI-RS resource set or ZP-CSI-RS resource set, repetition indication, aperiodic TriggeringOffset, transmission information (transmission information, tra-Info), etc.
- the access network device may send the PRS identification information to the terminal device.
- the terminal device can receive the PRS identification information.
- the access network device may send an RRC layer message to the terminal device, and the RRC layer message carries the PRS identification information.
- the RRC layer message may include channel state information (channel state information, CSI)-aperiodic trigger state list (aperiodic trigger state list) IE.
- the CSI aperiodic trigger status list IE may include the PRS identification information.
- the CSI-Aperiodic Trigger Status List IE may include a QCL field.
- the QCL field may be referred to as the qcl-info-r16 field.
- the qcl-info-r16 field may include the identifier of the at least one second PRS.
- the qcl-info-r16 field may be associated with an NZP-CSI-RS resource set.
- the NZP-CSI-RS resource set may include at least one resource.
- the at least one resource has a one-to-one correspondence with the identifier of the at least one second PRS included in the qcl-info-r16 field.
- the NZP-CSI-RS resource set may have an identifier, and each resource in the at least one resource may have an identifier.
- the CSI-Aperiodic Trigger Status List IE may include the following content:
- the aforementioned CSI-Aperiodic Trigger Status List IE includes the qcl-info-r16 field, and the qcl-info-r16 field includes the identifiers of three second PRSs.
- PRS-resource-ID 1, PRS-resource-ID 2, and PRS-resource-ID3 respectively represent the identities of the three second PRSs.
- the NZP-CSI-RS resource set associated with the qcl-info-r16 field (for example, the NZP-CSI-RS resource set may be the NZP-CSI-RS resource set in the NZP-CSI-RS resource set IE that carries the positioning indication information).
- the CSI-RS resource set includes three resources.
- These three resources correspond one-to-one with the identifiers of the three second PRSs.
- the first resource corresponds to PRS-resource-ID 1
- the second resource corresponds to PRS-resource-ID 2
- the third resource corresponds to PRS-resource-ID 3.
- the CSI-Aperiodic Trigger State List IE may also include other fields, such as the CSI-Aperiodic Trigger State List (CSI-Aperiodic Trigger State List) field, and CSI-Aperiodic Trigger State List.
- Periodic trigger state (CSI-AperiodicTriggerState) field etc.
- the embodiment of the present application does not specifically limit the specific content of these fields.
- the RRC layer message may include the CSI-aperiodic trigger state list IE and at least one transmission configuration indicator (TCI)-state (state) IE.
- TCI transmission configuration indicator
- the CSI-Aperiodic Trigger Status List IE may include a QCL field.
- the QCL field may be referred to as a qcl-info field.
- the qcl-info field may include a TCI-state identifier list, and the TCI-state identifier list includes at least one TCI-state identifier.
- the at least one TCI-state identifier corresponds to the at least one TCI-state IE in a one-to-one correspondence.
- the qcl-info field may be associated with an NZP-CSI-RS resource set.
- the NZP-CSI-RS resource set may include at least one resource.
- the at least one resource has a one-to-one correspondence with at least one TCI-state identifier included in the qcl-info field.
- the CSI-Aperiodic Trigger State List IE may also include other fields, such as the CSI-Aperiodic Trigger State List (CSI-Aperiodic Trigger State List) field, and CSI-Aperiodic Trigger State List. State (CSI-AperiodicTriggerState) field, etc.
- CSI-AperiodicTriggerState CSI-Aperiodic Trigger State List
- the embodiment of the present application does not specifically limit the specific content of these fields.
- Each TCI-state IE in the at least one TCI-state IE includes a tci-StateID field.
- the tci-StateID field may include the TCI-state identification.
- the TCI-state identifier is the TCI-state identifier corresponding to the TCI-state IE in the TCI-state identifier list.
- Each TCI-state IE also includes a field, and this field may include an identifier of a second PRS. This field can be called the prs field.
- Each TCI-state IE may also include a qcl-type (type) field.
- the qcl-type field is used to indicate the type of the associated QCL.
- the type of the associated QCL may be QCL type A, type B, type D, type A+D, or type C+D.
- the TCI-state IE may also include other fields, such as the qcl-info field and the csi-rs field.
- the embodiment of the present application does not specifically limit the specific content of these fields.
- the CSI-Aperiodic Trigger State List IE may include the following TCI-state identifier list:
- the aforementioned CSI-Aperiodic Trigger State List IE includes the qcl-info field, and the TCI-state identifier list included in the qcl-info field includes a total of three TCI-state identifiers.
- TCI-State 1, TCI-State 2, and TCI-State 3 respectively represent the three TCI-State identifiers.
- the TCI-state IE corresponding to TCI-State 1 may include the following content:
- the aforementioned TCI-state IE includes the tci-StateID field, the prs field, and the qcl-type field.
- the TCI-State identifier included in the tci-StateID field is TCI-State 1.
- the identifier of the second PRS included in the prs field is PRS-resource-ID 1.
- the type of QCL association indicated by the qcl-type field is type D.
- the NZP-CSI-RS resource set associated with the qcl-info field (for example, the NZP-CSI-RS resource set may be the NZP-CSI-RS resource set in the NZP-CSI-RS resource set IE carrying positioning indication information.
- the RS resource set includes three resources. These three resources have a one-to-one correspondence with the three TCI-state identifiers. For example, among the three resources, the first resource corresponds to TCI-state 1, the second resource corresponds to TCI-state 2, and the third resource corresponds to TCI-state 3.
- the access network device may send a MAC layer message to the terminal device, and the MAC layer message includes the PRS identification information.
- the MAC layer message may include a MAC subheader (subheader).
- the MAC subheader includes the PRS identification information.
- Figure 3 is a schematic diagram of the structure of a MAC subheader.
- the MAC subheader shown in FIG. 3 includes 4+N bytes in total, and N is an integer greater than or equal to 0.
- the length of this byte can be 8 bits.
- the A/D field in the first byte (ie byte 1) of the MAC sub-header indicates whether to activate or deactivate the semi-persistent (Semi-Persistent) indication.
- Semi-Persistent semi-persistent
- CSI Channel State Information
- RS Reference Signal
- IM SP CSI-Interference Measurement
- the Serving Cell ID (Serving Cell ID) field indicates the identity of the serving cell to which the MAC CE is applied.
- the BWP ID field is used to indicate a downlink (Downlink, DL) partial bandwidth (bandwidth part, BWP), and the MAC control element (CE) applies the BWP as the codepoint of the field "bandwidth part indicator" in the DCI.
- the R in the MAC subheader indicates a reserved field.
- SP CSI-RS resource set ID (resource set ID) field includes the index of the NZP-CSI-RS resource set (resource set) set, and the NZP-CSI-RS resource set includes semi-persistent NZP-CSI-RS Resources.
- the index indicates the semi-static NZP-CSI-RS resource set, and this field can be activated or deactivated.
- the IM field is used to indicate whether the 8 bits include the SP CSI-IM resource set identification field. If the value of the IM field is 1, it means that the MAC CE includes the SP CSI-IM resource set ID field. If the value of the IM field is 0, the SP CSI-IM resource set ID field is not included in the MAC CE.
- the CSI-IM resource set ID field includes the index of the CSI-IM resource set.
- the CSI-IM resource set includes semi-static CSI-IM resources.
- the index indicates the semi-static CSI-IM resource set. This field can be activated or deactivated.
- the PRS resource ID 0 field to the PRS resource ID N field are used to indicate the identification of the at least one second PRS.
- the PRS resource ID i field is used to indicate the identifier of the i-th second PRS in the at least one second PRS, i is greater than or equal to 0 and less than or equal to N.
- the MAC subheader may include a TCI-status IE, and the TCI-status IE includes the PRS identification information.
- Figure 4 is a schematic diagram of another MAC subheader structure.
- A/D field serving cell ID field, BWP ID field, R field, IM field, SP CSI-RS resource set ID field, and SP CSI-IM resource set ID field in Figure 4 are the same as the MAC shown in Figure 3.
- the functions of the fields corresponding to the sub-headers are the same. For brevity, details are not repeated here.
- the TCI-state IE 0 field to the TCI-state IE N field in the MAC header shown in FIG. 4 can be used to carry the PRS identification information.
- N can be an integer greater than or equal to zero.
- each TCI-state IE field from the TCI-state IE 0 field to the TCI-state IE N field may carry an identifier of a second PRS.
- the TCI-state IE includes the tci-StateID field.
- the tci-StateID field may include the TCI-state identification.
- the TCI-state IE also includes a field, which may include an identifier of a second PRS. This field can be called the prs field.
- the TCI-state IE may also include a qcl-type (type) field.
- the qcl-type field is used to indicate the type of the associated QCL.
- the type of the associated QCL may be QCL type A, type B, type D, type A+D, or type C+D.
- the method of carrying the PRS identification information as shown in Figure 3 is called the MAC subheader directly carrying the PRS identification information
- the method of carrying the PRS identification information as shown in Figure 4 is called the MAC subheader Indirectly carries PRS identification information.
- the terminal device determines the target second PRS and performs QCL correlation between the first PRS and the target second PRS to obtain spatial characteristic parameters.
- the terminal device After receiving the PRS identification information, the terminal device can determine that the access network device will send the first PRS to the terminal device. Therefore, the terminal device can QCL-associate the first PRS with one of the at least one second PRS indicated by the PRS identification information according to the PRS identification information to obtain the spatial characteristic parameter.
- the spatial characteristic parameter is a second PRS (that is, the target second PRS) that has a QCL association relationship with the first PRS determined by the terminal device.
- the PRS identification information sent by the access network device to the terminal device may only include the identification of one second PRS.
- the terminal device may determine that the second PRS is the target second PRS, and perform QCL association between the first PRS and the second PRS.
- the PRS identification information may include the identifications of multiple second PRSs.
- the access network device may also send trigger information to the terminal device, where the trigger information is used to indicate the target second PRS.
- the trigger information is used to indicate the identifier of the target second PRS.
- the target second PRS is one of the multiple second PRSs.
- the trigger information may be DCI.
- the access network device can send DCI to the terminal device.
- the DCI is used to indicate the identity of the target second PRS.
- the DCI includes the identifier of the first PRS, and the DCI may also be used to indicate that the terminal device will receive the first PRS.
- the DCI may indicate the identity of the target second PRS through the identity and resource identity of the NZP-CSI-RS resource set.
- the DCI may include the identification and resource identification of the NZP-CSI-RS resource set, and the identification and resource identification of the NZP-CSI-RS resource set are used to indicate the identification of the target second PRS.
- An NZP-CSI-RS resource set may be determined according to the identifier of the NZP-CSI-RS resource set; a resource (may be referred to as a target resource) is determined from at least one resource included in the NZP-CSI-RS resource set according to the resource identifier .
- the terminal device may determine the identity of the second PRS corresponding to the target resource from the identity of the at least one second PRS according to the correspondence between the resources in the NZP-CSI-RS resource set and the identity of the second PRS.
- the second PRS corresponding to the target resource is the target second PRS.
- the terminal device can also determine that the QCL type is a preset type. In other words, if the identification of the at least one second PRS is carried by a field in the CSI-Aperiodic Trigger State List IE, the QCL relationship between the first PRS and the target second PRS is of a preset type QCL relationship.
- the terminal device may use the NZP-CSI-RS in the case of receiving the DCI
- the identifier of the resource set determines an NZP-CSI-RS resource set; according to the resource identifier, a resource (may be referred to as a target resource) is determined from at least one resource included in the NZP-CSI-RS resource set.
- the terminal device may determine the TCI-state identifier corresponding to the target resource from the at least one TCI-state identifier according to the corresponding relationship between the resources in the NZP-CSI-RS resource set and the TCI-state identifier (may be referred to as the target TCI-state identifier). -state flag).
- the identifier of the second PRS in the TCI-state IE (which may be referred to as the target TCI-state IE) corresponding to the target TCI-state identifier is the identifier of the target second PRS.
- the terminal device may determine that the QCL type indicated by the qcl-type field in the target TCI-state IE is the type of the QCL association relationship between the first PRS and the second PRS.
- the DCI may include an identifier of a second PRS.
- the second PRS is the identifier of the target second PRS.
- the DCI may include the identifier of the target second PRS.
- the terminal device directly determines the target second PRS according to the identifier of the second PRS included in the DCI.
- the DCI may also include a TCI-state identifier.
- the identifier of the second PRS in the TCI-state IE corresponding to the TCI-state identifier is the identifier of the target second PRS.
- the terminal device determines the TCI-state IE according to the TCI-state identifier, and determines the identifier of the target second PRS from the TCI-state IE.
- the trigger information may be MAC CE.
- the MAC CE may include the identification of the first PRS and the identification of the second PRS.
- the MAC CE is used to indicate that the terminal device will receive the first PRS.
- the MAC CE may also be used to indicate the target second PRS.
- the identifier of the second PRS included in the MAC CE is the identifier of the target second PRS.
- the terminal device may determine the target second PRS from the identifiers of the multiple second PRSs shown in FIG. 3 according to the identifier of the second PRS carried by the MAC CE.
- the terminal device can also determine that the QCL type is a preset type. In other words, if the MAC subheader directly carries the PRS identification information, the QCL relationship between the first PRS and the target second PRS is a preset type of QCL relationship.
- the MAC CE may include the identification of the first PRS and a TCI-state identification.
- the MAC CE is used to indicate that the terminal device will receive the first PRS.
- the MAC CE may also be used to indicate the target second PRS.
- the target second PRS is the second PRS corresponding to the TCI-state identifier included in the MAC CE.
- the terminal device can determine the TCI-state IE corresponding to the TCI-state identifier in the MAC CE (may be referred to as the target TCI-state IE from the multiple TCI-state IEs included in the MAC subheader). state IE).
- the TCI-state identifier included in the tci-StateID field in the target TCI-state IE is the same as the TCI-state identifier included in the MAC CE.
- the identifier of the second PRS included in the prs field in the target TCI-state IE is the identifier of the target second PRS.
- the terminal device may determine that the QCL type indicated by the qcl-type field in the target TCI-state IE is the type of the QCL association relationship between the first PRS and the second PRS.
- Aperiodic PRS is PRS triggered by DCI
- semi-persistent PRS is PRS triggered by MAC CE. Therefore, when the terminal device determines that the DCI triggers the first PRS (that is, the trigger information received by the terminal device is DCI), the terminal device can determine that the type of the first PRS is an aperiodic PRS. In a case where the terminal device determines that the MAC triggers the first PRS (that is, the trigger information received by the terminal device is MAC CE), the terminal device may determine that the type of the first PRS is a semi-persistent PRS.
- the access network device sends the first PRS to the terminal device.
- the terminal device receives the first PRS according to the spatial characteristic parameter.
- the spatial characteristic parameters of the reference signals with the QCL correlation relationship may be the same.
- the terminal device may determine that the spatial characteristic parameter of the first PRS (that is, the spatial characteristic parameter determined in step 203) is the same as the spatial characteristic parameter of the second PRS.
- the embodiment of the present application also provides a communication device.
- the communication device may be the LMF network element in the embodiment shown in FIG. 2 or a chip used for the LMF network element.
- the communication device can be used to perform the actions performed by the LMF network element in the embodiment shown in FIG. 2.
- FIG. 5 shows a simplified schematic diagram of the LMF network element structure.
- the LMF network element includes 510 part and 520 part.
- the 510 part is mainly used for signal transmission and reception; the 520 part is mainly used for processing the signal received by the 510.
- the part 510 can generally be referred to as a transceiver unit, transceiver, transceiver circuit, or transceiver.
- the part 520 may generally be referred to as a processing unit, a processor, etc., and is used for the LMF network element to perform processing operations on the LMF network element side in the foregoing method embodiment.
- the transceiver unit of part 510 may also be called a transceiver or a transceiver.
- the device for implementing the receiving function in part 510 can be regarded as the receiving unit, and the device for implementing the sending function as the sending unit, that is, the part 510 includes the receiving unit and the sending unit.
- the receiving unit may also be called a receiver, a receiver, or a receiving circuit, etc.
- the sending unit may be called a transmitter, a transmitter, or a transmitting circuit, etc.
- the control unit of part 520 may include one or more single boards, and each single board may include one or more processors and one or more memories.
- the processor is used to read and execute programs in the memory to realize processing functions and control the LMF network elements. If there are multiple boards, each board can be interconnected to enhance processing capabilities. As an optional implementation, multiple single boards may share one or more processors, or multiple single boards may share one or more memories, or multiple single boards may share one or more processing at the same time. Device.
- the transceiving unit of part 510 is used to perform the transceiving steps on the LMF network element side in the embodiment of the present application.
- the transceiver unit of part 510 may be used to perform the sending operation on the LMF network element side in step 201 shown in FIG. 2.
- the control unit in part 520 can be used to determine the information sent by the LMF network element in step 201.
- the processing unit in part 520 can also be used to control the transceiver unit to send and receive signals.
- FIG. 5 is only an example and not a limitation, and the foregoing LMF network element including the transceiver unit and the processing unit may not rely on the structure shown in FIG. 5.
- the chip When the communication device is a chip used for an LMF network element, the chip includes a transceiver unit and a processing unit.
- the transceiver unit may be an input/output circuit or a communication interface;
- the processing unit is a processor, microprocessor, or integrated circuit integrated on the chip.
- the embodiment of the present application also provides a communication device.
- the communication device may be the access network device or chip in the embodiment shown in FIG. 2.
- the communication device may be used to perform the actions performed by the access network device in the embodiment shown in FIG. 2.
- FIG. 6 shows a simplified schematic diagram of the structure of the access network equipment.
- the access network equipment includes part 610 and part 620.
- the 610 part is mainly used for the transmission and reception of radio frequency signals and the conversion between radio frequency signals and baseband signals; the 620 part is mainly used for baseband processing and control of access network equipment.
- the part 610 can generally be referred to as a transceiver unit, transceiver, transceiver circuit, or transceiver.
- the part 620 is usually the control center of the access network device, and can usually be referred to as a processing unit, which is used to control the access network device to perform processing operations on the access network device side in the foregoing method embodiment.
- the transceiver unit of part 610 may also be called a transceiver or a transceiver, etc., which includes an antenna and a radio frequency unit, and the radio frequency unit is mainly used for radio frequency processing.
- the device used for implementing the receiving function in part 610 can be regarded as the receiving unit, and the device used for implementing the sending function as the sending unit, that is, the part 610 includes the receiving unit and the sending unit.
- the receiving unit may also be called a receiver, a receiver, or a receiving circuit, etc.
- the sending unit may be called a transmitter, a transmitter, or a transmitting circuit, etc.
- Part 620 may include one or more single boards, and each single board may include one or more processors and one or more memories.
- the processor is used to read and execute the program in the memory to realize the baseband processing function and control the access network equipment. If there are multiple boards, each board can be interconnected to enhance processing capabilities. As an optional implementation, multiple single boards may share one or more processors, or multiple single boards may share one or more memories, or multiple single boards may share one or more processing at the same time. Device.
- the transceiving unit in part 610 is used to perform the transceiving steps on the access network device side in the embodiment of the present application.
- the transceiver unit of part 610 can be used to perform the receiving operation on the access network device side in step 201 shown in FIG. 2, and the transceiver unit of part 610 can also be used for the access network device side in step 202 and step 204.
- the processing unit of part 620 is used to determine the information sent in step 202 and step 204.
- the processing unit in part 620 can also be used to control the transceiver unit to send and receive signals.
- part 610 can be used to receive the identification information of the terminal equipment from the LMF network element of the positioning management function, the positioning reference signal PRS indication information, and the PRS identification information.
- the PRS indication information is used to instruct the terminal equipment to send the first PRS
- the PRS identification information includes the identification of at least one second PRS, the first PRS and one of the at least one second PRS have a quasi co-located QCL association relationship, wherein the type of the first PRS does not include a period Sexual PRS.
- Part 610 can also be used to send the PRS identification information to the terminal device.
- Part 610 can also be used to send the first PRS to the terminal device.
- part 610 is specifically used to send a radio resource control RRC layer message to the terminal device when the type of the first PRS is aperiodic PRS, where the RRC layer message carries the PRS identification information.
- the RRC layer message includes a channel state information aperiodic trigger state list information element, and the channel state information aperiodic trigger state list information element includes the PRS identification information.
- the RRC layer message includes at least one transmission configuration indication state information element, and the identifier of the at least one second PRS is respectively carried by the at least one transmission configuration indication state information element.
- part 610 is also used to send downlink control information DCI to the terminal device.
- the DCI is used to indicate the identity of the target second PRS.
- the target second PRS is the at least one second PRS and the first PRS.
- part 610 is specifically used to send a medium access control MAC layer message to the terminal device when the type of the first PRS is a semi-persistent PRS, where the MAC layer message includes the PRS identification information.
- the MAC layer message includes a MAC subheader, and the MAC subheader includes the PRS identification information.
- the MAC layer message includes a MAC subheader
- the MAC subheader includes at least one transmission configuration indication status information element
- the at least one second PRS identifier is carried by the at least one transmission configuration indication status information element, respectively.
- part 610 is also used to send a MAC control element CE to the terminal device.
- the MAC CE is used to indicate the identity of the target second PRS.
- the target second PRS is the at least one second PRS and the first PRS.
- the PRS has a second PRS with a QCL association relationship.
- part 610 is also used to send a non-zero power channel state information reference signal NZP-CSI-RS resource set information element to the terminal device, where the NZP-CSI-RS resource set information element includes positioning indication information, and positioning indication The information is used to indicate that the parameter included in the NZP-CSI-RS resource set element is used for positioning measurement.
- FIG. 6 is only an example and not a limitation, and the above-mentioned access network device including a transceiver unit and a processing unit may not rely on the structure shown in FIG. 6.
- the chip When the communication device is a chip used for access network equipment, the chip includes a transceiver unit and a processing unit.
- the transceiver unit may be an input/output circuit or a communication interface;
- the processing unit is a processor, microprocessor, or integrated circuit integrated on the chip.
- the access network equipment is not limited to the above forms, and can also be in other forms: for example: including a baseband processing unit (Building Baseband Unit, BBU) and an adaptive radio unit (ARU), or BBU and active antenna
- BBU Building Baseband Unit
- ARU adaptive radio unit
- the unit active antenna unit, AAU
- CPE customer premises equipment
- the above-mentioned BBU can be used to perform the actions described in the previous method embodiments implemented by the access network equipment, and the remote radio unit (RRU) can be used to execute the access network equipment described in the previous method embodiments The action sent to the terminal device.
- RRU remote radio unit
- Figure 7 shows a simplified schematic diagram of the structure of the terminal device. It is easy to understand and easy to illustrate.
- the terminal device uses a mobile phone as an example.
- the terminal equipment includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
- the processor is mainly used to process the communication protocol and communication data, and to control the terminal device, execute the software program, and process the data of the software program.
- the memory is mainly used to store software programs and data.
- the radio frequency circuit is mainly used for the conversion of baseband signal and radio frequency signal and the processing of radio frequency signal.
- the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
- Input and output devices such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal devices may not have input and output devices.
- the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
- the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna.
- the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
- FIG. 7 only one memory and processor are shown in FIG. 7. In an actual terminal device product, there may be one or more processors and one or more memories.
- the memory may also be referred to as a storage medium or storage device.
- the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.
- the antenna and radio frequency circuit with the transceiving function can be regarded as the transceiving unit of the terminal device, and the processor with the processing function can be regarded as the processing unit of the terminal device.
- the terminal device includes a transceiving unit 710 and a processing unit 720.
- the transceiving unit 710 may also be referred to as a transceiver, a transceiver, a transceiving device, and so on.
- the processing unit 720 may also be referred to as a processor, a processing board, a processing module, a processing device, and so on.
- the device for implementing the receiving function in the transceiver unit 710 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiver unit 710 as the sending unit, that is, the transceiver unit 710 includes a receiving unit and a sending unit.
- the transceiver unit may sometimes be called a transceiver, a transceiver, or a transceiver circuit.
- the receiving unit may sometimes be called a receiver, a receiver, or a receiving circuit.
- the transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.
- the processing unit 720 may be used to execute the processing steps on the terminal device side in the embodiment of the present application.
- the processing unit 720 may be used to execute the processing action in step 203 shown in FIG. 2.
- the transceiving unit 710 may be used to perform the transceiving steps on the terminal device side in the embodiment of the present application.
- the transceiving unit 710 may be used to perform the receiving operations in step 202 and step 204 shown in FIG. 2.
- the processing unit of part 720 can also be used to control the transceiver unit to send and receive signals.
- the transceiver unit 710 is configured to receive positioning reference signal PRS identification information from an access network device, where the PRS identification information includes the identification of at least one second PRS, and the first PRS and the target second PRS have a quasi co-located QCL association
- the target second PRS is a second PRS in the at least one second PRS
- the type of the first PRS does not include a periodic PRS.
- the processing unit 720 is configured to perform QCL correlation between the first PRS and the target second PRS to obtain spatial characteristic parameters.
- the transceiver unit 710 is further configured to receive the first PRS from the access network device according to the spatial characteristic parameter.
- the transceiver unit 710 is specifically configured to receive a radio resource control RRC layer message from the access network device, where the RRC layer message carries the PRS identification information.
- the RRC layer message includes a channel state information aperiodic trigger state list information element, and the channel state information aperiodic trigger state list information element includes the PRS identification information.
- the RRC layer message includes at least one transmission configuration indication state information element, and the identifier of the at least one second PRS is respectively carried by the at least one transmission configuration indication state information element.
- the transceiver unit 710 is further configured to receive the downlink control information DCI from the access network device before the processing unit performs QCL associating the first PRS with the target second PRS, where the DCI is used to indicate the The identifier of the target second PRS.
- the processing unit 720 is further configured to determine that the type of the first PRS is an aperiodic PRS.
- the transceiver unit 710 is specifically configured to receive a media access control MAC layer message from the access network device, where the MAC layer message carries the PRS identification information.
- the MAC layer message includes a MAC subheader, and the MAC subheader includes the PRS identification information.
- the MAC layer message includes a MAC subheader
- the MAC subheader includes at least one transmission configuration indication state information element
- the identification of the at least one second PRS is carried by the at least one transmission configuration indication state information element.
- the transceiver unit 710 is further configured to receive a MAC control element CE from the access network device before the processing unit performs QCL association between the first PRS and the target second PRS, where the MAC CE is used to indicate The identifier of the target second PRS; the processing unit is further configured to determine that the type of the first PRS is a semi-persistent PRS.
- the transceiver unit 710 is further configured to receive a non-zero power channel state information reference signal NZP-CSI-RS resource set information element from the access network device, where the NZP-CSI-RS resource set information element includes positioning Indication information, the positioning indication information is used to indicate that the parameter included in the NZP-CSI-RS resource set element is used for positioning measurement.
- NZP-CSI-RS resource set information element includes positioning Indication information
- FIG. 7 is only an example and not a limitation, and the foregoing terminal device including the transceiving unit 710 and the processing unit 720 may not rely on the structure shown in FIG. 7.
- the chip When the communication device is a chip for terminal equipment, the chip includes a transceiver unit and a processing unit.
- the transceiver unit may be an input/output circuit or a communication interface;
- the processing unit may be a processor, microprocessor, or integrated circuit integrated on the chip.
- the chip in the embodiment of this application may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), or It is a central processor unit (CPU), it can also be a network processor (NP), it can also be a digital signal processing circuit (digital signal processor, DSP), or it can be a microcontroller (microcontroller unit). , MCU), it can also be a programmable logic device (PLD), other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, or other integrated chips.
- FPGA field programmable gate array
- ASIC application specific integrated circuit
- SoC system on chip
- CPU central processor unit
- NP network processor
- DSP digital signal processor
- microcontroller unit microcontroller unit
- MCU programmable logic device
- PLD programmable logic device
- each step of the above method can be completed by an integrated logic circuit of hardware in the processor or a computer program or instruction in the form of software.
- the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
- the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
- the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware. In order to avoid repetition, detailed description is omitted here.
- the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability.
- the steps of the foregoing method embodiments may be completed by integrated logic circuits of hardware in the processor or computer programs or instructions in the form of software.
- the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
- the steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
- the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
- the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
- the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
- the volatile memory may be random access memory (RAM), which is used as an external cache.
- RAM random access memory
- static random access memory static random access memory
- dynamic RAM dynamic RAM
- DRAM dynamic random access memory
- synchronous dynamic random access memory synchronous DRAM, SDRAM
- double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
- enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
- synchronous connection dynamic random access memory serial DRAM, SLDRAM
- direct rambus RAM direct rambus RAM
- the present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code runs on a computer, the computer executes the embodiment shown in FIG. 2 Methods.
- the present application also provides a computer-readable medium storing program code, which when the program code runs on a computer, causes the computer to execute the embodiment shown in FIG. 2 Methods.
- the present application also provides a system, which includes the aforementioned one or more terminal devices, one or more access network devices, and LMF network elements.
- the disclosed system, device, and method may be implemented in other ways.
- the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may 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 the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
- the 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 the present 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 methods described in the various embodiments of the present application.
- the aforementioned storage media include: 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 code .
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Abstract
本申请提供一种发送定位参考信号的方法和相关装置,该方法包括:接收来自于定位管理功能网元的终端设备的标识信息、定位参考信号PRS指示信息和PRS标识信息;向该终端设备发送该PRS标识信息;向该终端设备发送该第一PRS。基于上述技术方案,该终端设备可以接收除周期性PRS以外的其他类型的PRS。因此,有更多的PRS被用于进行定位测量,这样可以提升定位精度。
Description
本申请要求于2019年8月30日提交中国专利局、申请号为201910816099.5、申请名称为“发送定位参考信号的方法和相关装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及通信技术领域,更具体地,涉及发送定位参考信号的方法和相关装置。
在下行定位场景中,如果需要给一个终端设备进行定位,则需要多个接入网设备为该终端设备发送定位参考信号(positioning reference signal,PRS)。该终端设备可以利用接收到的参考信号确定该终端设备的位置。例如,该终端设备可以根据接收到的PRS测量PRS从接入网设备到终端设备之间的到达时间差(time difference of arrival,TDOA),利用TDOA确定该终端设备位置。
目前,接入网设备发送的PRS的方式是周期性发送的。但是,利用周期性的PRS进行定位测量得到的定位结果可能不能满足需要的定位精度。
发明内容
本申请提供一种发送定位参考信号的方法和相关装置,能够提升定位精度。
第一方面,本申请实施例提供一种发送定位参考信号的方法,包括:接收来自于定位管理功能LMF网元的终端设备的标识信息、定位参考信号PRS指示信息、和PRS标识信息,该PRS指示信息用于指示向该终端设备发送第一PRS,该PRS标识信息包括至少一个第二PRS的标识,该第一PRS与该至少一个第二PRS中的一个第二PRS具有准共址QCL关联关系,其中该第一PRS的类型不包括周期性PRS;向该终端设备发送该PRS标识信息;向该终端设备发送该第一PRS。
可选的,该第二PRS是已经发送给该终端设备的PRS。换句话说,该终端设备在接收该第一PRS之前已经接收了该第二PRS。
可选的,该第二PRS的类型可以是周期性PRS、非周期PRS,或者半持续PRS。
上述技术方案中,接入网设备除了可以向终端设备发送周期性的PRS外,还可以发送其他类型的PRS。因此,可以有更多的PRS被发送至该终端设备。相应的,可以有更多的PRS被用于定位测量。这样可以提升定位精度。此外,该第一PRS与该至少一个第二PRS中的一个第二PRS具有QCL关联关系。在此情况下,该LMF网元可以将该至少一个第二PRS的标识通知给接入网设备。该接入网设备将该至少一个第二PRS的标识转发给该终端设备。这样,该终端设备可以从该至少一个第二PRS中确定出与该第一PRS具有QCL关联关系的第二PRS,从而根据该第二PRS的空间特性参数接收该第一PRS。 这样,该终端设备可以直接利用第二PRS的空间特性参数接收该第一PRS,而无需再重新确定用于接收第一PRS的空间特性参数。
在一种可能的设计中,当该第一PRS的类型为非周期PRS时,该向该终端设备发送该PRS标识信息,包括:向该终端设备发送无线资源控制RRC层消息,该RRC层消息携带该PRS标识信息。
在一种可能的设计中,该RRC层消息包括信道状态信息非周期触发状态列表信息元素,该信道状态信息非周期触发状态列表信息元素包括该PRS标识信息。上述技术方案可以直接通过信道状态信息非周期触发状态列表信息元素携带该PRS标识信息,这样可以便于将该至少一个第二PRS的标识通知给该终端设备。
在一种可能的设计中,该RRC层消息包括至少一个传输配置指示状态信息元素,该至少一个第二PRS的标识分别由该至少一个传输配置指示状态信息元素携带。上述技术方案可以不需要对现有的信道状态信息非周期触发状态列表信息元素的格式进行修改,而是通过传输配置指示状态信息元素携带该至少一个第二PRS的标识。这样,对现有协议修改较小。此外,该传输配置指示状态信息元素中还可以携带QCL的类型。
在一种可能的设计中,该方法还包括:向该终端设备发送下行控制信息DCI,该DCI用于指示目标第二PRS的标识,该目标第二PRS为该至少一个第二PRS中与该第一PRS具有QCL关联关系的第二PRS。基于上述技术方案,该终端设备可以通过该DCI确定与该第一PRS具有QCL关联关系的第二PRS。
在一种可能的设计中,当该第一PRS的类型为半持续PRS时,该向该终端设备发送该PRS标识信息,包括:向该终端设备发送介质访问控制MAC层消息,该MAC层消息包括该PRS标识信息。
在一种可能的设计中,该MAC层消息包括MAC子头,该MAC子头包括该PRS标识信息。上述技术方案可以直接通过MAC子头携带该PRS标识信息,这样可以便于将该至少一个第二PRS的标识通知给该终端设备。
在一种可能的设计中,该MAC层消息包括MAC子头,该MAC子头包括至少一个传输配置指示状态信息元素,该至少一个第二PRS的标识分别由该至少一个传输配置指示状态信息元素携带。上述技术方案可以不需要对现有的MAC子头的格式进行修改,而是通过传输配置指示状态信息元素携带该至少一个第二PRS的标识。这样,对现有协议修改较小。此外,该传输配置指示状态信息元素中还可以携带QCL的类型。
在一种可能的设计中,该方法还包括:向该终端设备发送MAC控制元素CE,该MAC CE用于指示目标第二PRS的标识,该目标第二PRS为该至少一个第二PRS中与该第一PRS具有QCL关联关系的第二PRS。基于上述技术方案,该终端设备可以通过该MAC CE确定与该第一PRS具有QCL关联关系的第二PRS。
在一种可能的设计中,该方法还包括:向该终端设备发送非零功率信道状态信息参考信号NZP-CSI-RS资源集合信息元素,该NZP-CSI-RS资源集合信息元素包括定位指示信息,定位指示信息用于指示该NZP-CSI-RS资源集合元素中包括的参数为用于定位测量。上述技术方案利用现有的NZP-CSI-RS资源集合信息元素将用于定位测量的参数通知给该终端设备。因此,上述技术方案不需要新增新的信息元素来通知用于定位测量的参数,对现有协议改动较小。
第二方面,本申请实施例提供一种接收定位参考信号方法,该方法包括:接收来自于接入网设备的定位参考信号PRS标识信息,该PRS标识信息包括至少一个第二PRS的标识,第一PRS与目标第二PRS具有准共址QCL关联关系,该目标第二PRS为该至少一个第二PRS中的一个第二PRS,该第一PRS的类型不包括周期性PRS;将该第一PRS与该目标第二PRS进行QCL关联,得到空间特性参数;根据该空间特性参数接收来自于该接入网设备的该第一PRS。
可选的,该第二PRS是已经发送给该终端设备的PRS。换句话说,该终端设备在接收该第一PRS之前已经接收了该第二PRS。
可选的,该第二PRS的类型可以是周期性PRS、非周期PRS,或者半持续PRS。
上述技术方案中,终端设备除了可以接收周期性的PRS外,还可以接收到其他类型的PRS。换句话说,该终端设备接收到的PRS的数目增加了。因此,该终端设备可以使用更多的PRS进行定位测量,这样可以提升定位精度。此外,该终端设备可以从该至少一个第二PRS中确定出与该第一PRS具有QCL关联关系的第二PRS,从而根据该第二PRS的空间特性参数接收该第一PRS。这样,该终端设备可以直接利用第二PRS的空间特性参数接收该第一PRS,而无需再重新确定用于接收第一PRS的空间特性参数。
在一种可能的设计中,该接收来自于接入网设备的定位参考信号PRS标识信息,包括:接收来自于该接入网设备的无线资源控制RRC层消息,该RRC层消息携带该PRS标识信息。
在一种可能的设计中,该RRC层消息包括信道状态信息非周期触发状态列表信息元素,该信道状态信息非周期触发状态列表信息元素包括该PRS标识信息。上述技术方案可以直接通过信道状态信息非周期触发状态列表信息元素携带该PRS标识信息,这样可以便于将该至少一个第二PRS的标识通知给该终端设备。
在一种可能的设计中,该RRC层消息包括至少一个传输配置指示状态信息元素,该至少一个第二PRS的标识分别由该至少一个传输配置指示状态信息元素携带。上述技术方案可以不需要对现有的信道状态信息非周期触发状态列表信息元素的格式进行修改,而是通过传输配置指示状态信息元素携带该至少一个第二PRS的标识。这样,对现有协议修改较小。此外,该传输配置指示状态信息元素中还可以携带QCL的类型。
在一种可能的设计中,在该将该第一PRS与目标第二PRS进行QCL关联之前,该方法还包括:接收来自于该接入网设备的下行控制信息DCI,该DCI用于指示该目标第二PRS的标识,确定该第一PRS的类型为非周期PRS。基于上述技术方案,该终端设备可以通过该DCI确定与该第一PRS具有QCL关联关系的第二PRS。
在一种可能的设计中,该接收来自于接入网设备的定位参考信号PRS标识信息,包括:接收来自于该接入网设备的介质访问控制MAC层消息,该MAC层消息携带该PRS标识信息。
在一种可能的设计中,该MAC层消息包括MAC子头,该MAC子头包括该PRS标识信息。上述技术方案可以直接通过MAC子头携带该PRS标识信息,这样可以便于将该至少一个第二PRS的标识通知给该终端设备。
在一种可能的设计中,该MAC层消息包括MAC子头,该MAC子头包括至少一个传输配置指示状态信息元素,该至少一个第二PRS的标识分别由该至少一个传输配置指 示状态信息元素携带。上述技术方案可以不需要对现有的MAC子头的格式进行修改,而是通过传输配置指示状态信息元素携带该至少一个第二PRS的标识。这样,对现有协议修改较小。此外,该传输配置指示状态信息元素中还可以携带QCL的类型。
在一种可能的设计中,在该将该第一PRS与目标第二PRS进行QCL关联之前,该方法还包括:接收来自于该接入网设备的MAC控制元素CE,该MAC CE用于指示该目标第二PRS的标识,确定该第一PRS的类型为半持续PRS。基于上述技术方案,该终端设备可以通过该MAC CE确定与该第一PRS具有QCL关联关系的第二PRS。
在一种可能的设计中,该方法还包括:接收来自于该接入网设备的非零功率信道状态信息参考信号NZP-CSI-RS资源集合信息元素,该NZP-CSI-RS资源集合信息元素包括定位指示信息,定位指示信息用于指示该NZP-CSI-RS资源集合元素中包括的参数用于定位测量。上述技术方案利用现有的NZP-CSI-RS资源集合信息元素将用于定位测量的参数通知给该终端设备。因此,上述技术方案不需要新增新的信息元素来通知用于定位测量的参数,对现有协议改动较小。
第三方面,本申请实施例提供一种发送定位参考信号的方法,包括:向接入网设备发送终端设备的标识信息、定位参考信号PRS指示信息、和PRS标识信息,该PRS指示信息用于指示向该终端设备发送第一PRS,该PRS标识信息包括至少一个第二PRS的标识,该第一PRS与该至少一个第二PRS中的一个第二PRS具有准共址QCL关联关系,其中该第一PRS的类型不包括周期性PRS。
上述技术方案中,该第一PRS与该至少一个第二PRS中的一个第二PRS具有QCL关联关系。在此情况下,该LMF网元可以将该至少一个第二PRS的标识通知给接入网设备。该接入网设备将该至少一个第二PRS的标识转发给该终端设备。这样,该终端设备可以从该至少一个第二PRS中确定出与该第一PRS具有QCL关联关系的第二PRS,从而根据该第二PRS的空间特性参数接收该第一PRS。这样,该终端设备可以直接利用第二PRS的空间特性参数接收该第一PRS,而无需再重新确定用于接收第一PRS的空间特性参数。
可选的,该第二PRS是已经发送给该终端设备的PRS。换句话说,该终端设备在接收该第一PRS之前已经接收了该第二PRS。
可选的,该第二PRS的类型可以是周期性PRS、非周期PRS,或者半持续PRS。
第四方面,本申请实施例提供一种通信装置,包括收发单元、处理单元和存储单元。该处理单元用于控制收发单元收发信号,该存储单元用于存储计算机程序,该处理单元用于从存储单元中调用并运行该计算机程序,使得该通信装置执行上述第一方面的方法设计中任意一种可能的实现方式中的方法。该通信装置可以为接入网设备或者用于接入网设备的部件(例如芯片、电路等)。
可选的,该收发单元可以是收发器。该处理单元可以是处理器。该存储单元可以是存储器。
第五方面,本申请实施例提供一种通信装置,包括收发单元、处理单元和存储单元。该处理单元用于控制收发单元收发信号,该存储单元用于存储计算机程序,该处理单元用于从存储单元中调用并运行该计算机程序,使得该通信装置执行上述第二方面的方法设计中任意一种可能的实现方式中的方法。该通信装置可以为终端设备或者用于终端设备的部 件(例如芯片、电路等)。
可选的,该收发单元可以是收发器。该处理单元可以是处理器。该存储单元可以是存储器。
第六方面,本申请实施例提供一种通信装置,包括收发单元、处理单元和存储单元。该处理单元用于控制收发单元收发信号,该存储单元用于存储计算机程序,该处理单元用于从存储单元中调用并运行该计算机程序,使得该通信装置执行上述第三方面的方法。该通信装置可以为LMF网元或者用于LMF网元的部件(例如芯片、电路等)。
可选的,该收发单元可以是收发器。该处理单元可以是处理器。该存储单元可以是存储器。
第七方面,本申请实施例提供一种接入网设备,包括收发器和处理器。可选地,该接入网设备还包括存储器。该处理器用于控制收发器收发信号,该存储器用于存储计算机程序,该处理器用于从存储器中调用并运行该计算机程序,使得该接入网设备执行上述第一方面的方法设计中任意一种可能的实现方式中的方法。
第八方面,本申请实施例提供一种终端设备,包括收发器和处理器。可选地,该终端设备还包括存储器。该处理器用于控制收发器收发信号,该存储器用于存储计算机程序,该处理器用于从存储器中调用并运行该计算机程序,使得该终端设备执行上述第二方面的方法设计中任意一种可能的实现方式中的方法。
第九方面,本申请实施例提供一种LMF网元,包括收发器和处理器。可选地,该LMF网元还包括存储器。该处理器用于控制收发器收发信号,该存储器用于存储计算机程序,该处理器用于从存储器中调用并运行该计算机程序,使得该LMF网元执行上述第三方面的方法。
第十方面,本申请实施例提供一种通信***,该***包括上述第七方面的接入网设备、第八方面的终端设备和第九方面的LMF网元。
第十一方面,本申请实施例提供一种通信装置,该通信装置可以为用于实现上述第一方面方法设计中的接入网设备,或者为设置在接入网设备中的芯片。该通信装置包括:处理器,与存储器耦合,可用于执行存储器中的计算机程序,以实现上述第一方面的方法设计中任意一种可能的实现方式中的方法。可选地,该通信装置还包括存储器。可选地,该通信装置还包括通信接口,处理器与通信接口耦合。
当该通信装置为接入网设备时,该通信接口可以是收发器,或,输入/输出接口。
当该通信装置为配置于接入网设备中的芯片时,该通信接口可以是输入/输出接口。
可选地,该收发器可以为收发电路。可选地,该输入/输出接口可以为输入/输出电路。
第十二方面,本申请实施例提供一种通信装置,该通信装置可以为用于实现上述第二方面方法设计中的终端设备,或者为设置在终端设备中的芯片。该通信装置包括:处理器,与存储器耦合,可用于执行存储器中的计算机程序,以实现上述第二方面的方法设计中任意一种可能的实现方式中的方法。可选地,该通信装置还包括存储器。可选地,该通信装置还包括通信接口,处理器与通信接口耦合。
当该通信装置为终端设备时,该通信接口可以是收发器,或,输入/输出接口。
当该通信装置为配置于终端设备中的芯片时,该通信接口可以是输入/输出接口。
可选地,该收发器可以为收发电路。可选地,该输入/输出接口可以为输入/输出电路。
第十三方面,本申请实施例提供一种通信装置,该通信装置可以为用于实现上述第三方面方法设计中的LMF网元,或者为设置在LMF网元中的芯片。该通信装置包括:处理器,与存储器耦合,可用于执行存储器中的计算机程序,以实现上述第三方面的方法设计中任意一种可能的实现方式的方法。可选地,该通信装置还包括存储器。可选地,该通信装置还包括通信接口,处理器与通信接口耦合。
当该通信装置为LMF网元时,该通信接口可以是收发器,或,输入/输出接口。
当该通信装置为配置于LMF网元中的芯片时,该通信接口可以是输入/输出接口。
可选地,该收发器可以为收发电路。可选地,该输入/输出接口可以为输入/输出电路。
第十四方面,本申请实施例提供一种计算机程序产品,所述计算机程序产品包括:计算机程序代码,当所述计算机程序代码在计算机上运行时,使得计算机执行上述第一方面的方法设计中任意一种可能的实现方式中的方法。
第十五方面,本申请实施例提供一种计算机程序产品,所述计算机程序产品包括:计算机程序代码,当所述计算机程序代码在计算机上运行时,使得计算机执行上述第二方面的方法设计中任意一种可能的实现方式中的方法。
第十六方面,本申请实施例提供一种计算机程序产品,所述计算机程序产品包括:计算机程序代码,当所述计算机程序代码在计算机上运行时,使得计算机执行上述第三方面中的方法。
第十七方面,本申请实施例提供一种计算机可读介质,所述计算机可读介质存储有程序代码,当所述计算机程序代码在计算机上运行时,使得计算机执行上述第一方面的方法设计中任意一种可能的实现方式中的方法。
第十八方面,本申请实施例提供一种计算机可读介质,所述计算机可读介质存储有程序代码,当所述计算机程序代码在计算机上运行时,使得计算机执行上述第二方面的方法设计中任意一种可能的实现方式中的方法。
第十九方面,本申请实施例提供一种计算机可读介质,所述计算机可读介质存储有程序代码,当所述计算机程序代码在计算机上运行时,使得计算机执行上述第三方面中的方法。
图1是适用于本申请实施例的无线通信***100的示意图。
图2是根据本申请实施例提供是一种发送定位参考信号的方法的示意性流程图。
图3是一个MAC子头的结构示意图。
图4是另一个MAC子头的结构示意图。
图5示出了一种简化的LMF网元结构示意图。
图6示出了一种简化的接入网设备结构示意图。
图7示出了一种简化的终端设备的结构示意图。
下面将结合附图,对本申请中的技术方案进行描述。
本申请将围绕可包括多个设备、组件、模块等的***来呈现各个方面、实施例或特征。 应当理解和明白的是,各个***可以包括另外的设备、组件、模块等,并且/或者可以并不包括结合附图讨论的所有设备、组件、模块等。此外,还可以使用这些方案的组合。
另外,在本申请实施例中,“示例的”、“例如”等词用于表示作例子、例证或说明。本申请中被描述为“示例”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言,使用示例的一词旨在以具体方式呈现概念。
本申请实施例中,信息(information),信号(signal),消息(message),信道(channel)有时可以混用,应当指出的是,在不强调其区别时,其所要表达的含义是一致的。“相应的(corresponding,relevant)”和“对应的(corresponding)”有时可以混用,应当指出的是,在不强调其区别时,其所要表达的含义是一致的。
本申请实施例中,有时候下标如W
1可能会笔误为非下标的形式如W1,在不强调其区别时,其所要表达的含义是一致的。
本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案,并不构成对于本申请实施例提供的技术方案的限定,本领域普通技术人员可知,随着网络架构的演变和新业务场景的出现,本申请实施例提供的技术方案对于类似的技术问题,同样适用。
在本说明书中描述的参考“一个实施例”或“一些实施例”等意味着在本申请的一个或多个实施例中包括结合该实施例描述的特定特征、结构或特点。由此,在本说明书中的不同之处出现的语句“在一个实施例中”、“在一些实施例中”、“在其他一些实施例中”、“在另外一些实施例中”等不是必然都参考相同的实施例,而是意味着“一个或多个但不是所有的实施例”,除非是以其他方式另外特别强调。术语“包括”、“包含”、“具有”及它们的变形都意味着“包括但不限于”,除非是以其他方式另外特别强调。
本申请中,“至少一个”是指一个或者多个,“多个”是指两个或两个以上。“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B的情况,其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达,是指的这些项中的任意组合,包括单项(个)或复数项(个)的任意组合。例如,a,b,或c中的至少一项(个),可以表示:a,b,c,a-b,a-c,b-c,或a-b-c,其中a,b,c可以是单个,也可以是多个。
本申请实施例的技术方案可以应用于各种通信***,例如:全球移动通讯(Global System of Mobile communication,GSM)***、码分多址(Code Division Multiple Access,CDMA)***、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)***、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)***、LTE频分双工(Frequency Division Duplex,FDD)***、LTE时分双工(Time Division Duplex,TDD)、通用移动通信***(Universal Mobile Telecommunication System,UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access,WiMAX)通信***、未来的第五代(5th Generation,5G)***或新无线(New Radio,NR)等。
本申请实施例中的终端设备可以指用户设备、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol, SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字处理(Personal Digital Assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备,未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network,PLMN)中的终端设备等,本申请实施例对此并不限定。
示例性地,终端设备中可以包括:无线资源控制(radio resource control,RRC)信令交互模块、媒体接入控制(media access control,MAC)信令交互模块、以及物理(physical,PHY)信令交互模块。其中,RRC信令交互模块可以为:网络设备和终端设备用于发送及接收RRC信令的模块。MAC信令交互模块可以为:网络设备和终端设备用于发送及接收媒体接入控制控制元素(media access control control element,MAC-CE)信令的模块。PHY信令及数据可以为:网络设备和终端设备用于发送及接收上行控制信令或下行控制信令、上下行数据或下行数据的模块。
本申请实施例中的接入网设备可以是用于与终端设备通信的设备,该接入网设备可以是全球移动通讯(Global System of Mobile communication,GSM)***或码分多址(Code Division Multiple Access,CDMA)中的基站(Base Transceiver Station,BTS),也可以是宽带码分多址(Wideband Code Division Multiple Access,WCDMA)***中的基站(NodeB,NB),还可以是LTE***中的演进型基站(Evolutional NodeB,eNB或eNodeB),还可以是云无线接入网络(Cloud Radio Access Network,CRAN)场景下的无线控制器,或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的的接入网设备(例如gNB)或者未来演进的PLMN网络中的接入网设备等,本申请实施例并不限定。
示例性地,网络设备中也可以包括:RRC信令交互模块、MAC信令交互模块、以及PHY信令交互模块。
在一些部署中,网络设备可以包括集中式单元(centralized unit,CU)和(distributed unit,DU)。网络设备还可以包括有源天线单元(active antenna unit,AAU)。CU实现网络设备的部分功能,DU实现网络设备的部分功能,比如,CU负责处理非实时协议和服务,实现无线资源控制(radio resource control,RRC),分组数据汇聚层协议(packet data convergence protocol,PDCP)层的功能。DU负责处理物理层协议和实时服务,实现无线链路控制(radio link control,RLC)层、媒体接入控制(media access control,MAC)层和物理(physical,PHY)层的功能。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息,或者,由PHY层的信息转变而来,因而,在这种架构下,高层信令,如RRC层信令,也可以认为是由DU发送的,或者,由DU+AAU发送的。可以理解的是,网络设备可以为包括CU节点、DU节点、AAU节点中一项或多项的设备。此外,可以将CU划分为接入网(radio access network,RAN)中的网络设备,也可以将CU划分为核心网(core network,CN)中的网络设备,本申请对此不做限定。
为便于理解本申请实施例,首先对本申请中涉及的几个术语做简单说明。
1、波束
波束在NR协议中的体现可以是空域滤波器(spatial filter),或者称空间滤波器(spatial filter)或空间参数(spatial parameters)。用于发送信号的波束可以称为发射波束(transmission beam,Tx beam),可以称为空间发送滤波器(spatial domain transmit filter)或空间发射参数(spatial domain transmit parameter);用于接收信号的波束可以称为接收波束(reception beam,Rx beam),可以称为空间接收滤波器(spatial domain receive filter)。
发射波束可以是指信号经天线发射出去后在空间不同方向上形成的信号强度的分布,接收波束可以是指从天线上接收到的无线信号在空间不同方向上的信号强度分布。
应理解,上文列举的NR协议中对于波束的体现仅为示例,不应对本申请构成任何限定。本申请并不排除在未来的协议中定义其他的术语来表示相同或相似的含义的可能。
此外,波束可以是宽波束,或者窄波束,或者其他类型波束。形成波束的技术可以是波束赋形技术或者其他技术。波束赋形技术具体可以为数字波束赋形技术、模拟波束赋形技术或者混合数字/模拟波束赋形技术等。不同的波束可以认为是不同的资源。通过不同的波束可以发送相同的信息或者不同的信息。
可选地,将具有相同或者类似的通信特征的多个波束视为是一个波束。一个波束内可以包括一个或多个天线端口,用于传输数据信道、控制信道和探测信号等。形成一个波束的一个或多个天线端口也可以看作是一个天线端口集。
2、波束配对关系
波束配对关系,即,发射波束与接收波束之间的配对关系,也就是空间发射滤波器与空间接收滤波器之间的配对关系。在具有波束配对关系的发射波束和接收波束之间传输信号可以获得较大的波束赋形增益。
在一种实现方式中,发送端和接收端可以通过波束训练来获得波束配对关系。具体地,发送端可通过波束扫描的方式发送参考信号,接收端也可通过波束扫描的方式接收参考信号。具体地,发送端可通过波束赋形的方式在空间形成不同指向性的波束,并可以在多个具有不同指向性的波束上轮询,以通过不同指向性的波束将参考信号发射出去,使得参考信号在发射波束所指向的方向上发射参考信号的功率可以达到最大。接收端也可通过波束赋形的方式在空间形成不同指向性的波束,并可以在多个具有不同指向性的波束上轮询,以通过不同指向性的波束接收参考信号,使得该接收端接收参考信号的功率在接收波束所指向的方向上可以达到最大。
通过遍历各发射波束和接收波束,接收端可基于接收到的参考信号进行信道测量,并将测量得到的结果通过信道状态信息(channel state information,CSI)上报发送端。例如,接收端可以将参考信号接收功率(reference signal receiving power,RSRP)较大的部分参考信号资源上报给发送端,如上报参考信号资源的标识,以便发送端在传输数据或信令时采用信道质量较好的波束配对关系来收发信号。
3、天线端口(antenna port)
天线端口简称端口。可以理解为被接收端所识别的发射天线,或者在空间上可以区分的发射天线。针对每个虚拟天线可以配置一个天线端口,每个虚拟天线可以为多个物理天线的加权组合。根据所承载的信号的不同,天线端口可以分为参考信号端口和数据端口。其中,参考信号端口例如包括但不限于,解调参考信号(demodulation reference signal,DMRS)端口、零功率信道状态信息参考信号触发(channel state information reference signal,CSI-RS)端口等。
在本申请实施例中,该天线端口可以是指DMRS端口(DMRS port)。不同DMRS端口的DMRS占用的时频资源可能不同,或者,正交覆盖码不同。当网络设备向终端设备指示端口时,终端设备可以基于网络设备所指示的端口接收DMRS,并基于接收到的DMRS解调PDCCH或PDSCH。
此外,与该天线端口相关的参数可以是DMRS端口、DMRS端口组(DMRS port group)或DMRS码分复用(code division multiplexing,CDM)组(DMRS CDM group)。终端设备可以基于下行控制信息(Downlink Control Information,DCI)中指示的天线端口确定DMRS端口,进而确定所属的DMRS端口组或DMRS码分复用组。
需要说明的是,DMRS端口组和DMRS码分复用组可以理解为基于不同的方式对DMRS端口进行分组而得到。天线端口、DMRS端口、DMRS端口组和DMRS码分复用组可以通过索引来区分,也可以通过标识来区分,或者还可通过其他可用于区分不同端口或不同组的信息来区分,本申请对此不作限定。
下文实施例中,端口和DMRS端口有时交替使用,应理解,在本申请实施例中,端口表示DMRS端口。
4、准共址(quasi-co-location,QCL)
准共址,也可以称为准共站、同位置。QCL信息也可以称为QCL假设信息。QCL信息用于辅助描述终端设备接收波束赋形信息以及接收流程。
QCL信息可以用于指示两个参考信号之间的QCL关系,其中目标参考信号一般可以是解调参考信号(demodulation reference signal,DMRS),信道状态信息参考信号(channel state information reference signal,CSI-RS),定位参考信号(positioning reference signal,PRS)等,而被引用的参考信号或者源参考信号一般可以是CSI-RS、同步信号广播信道块(synchronous signal/PBCH block,SSB)),探测参考信号(sounding reference signal,SRS)等。应理解,追踪参考信号(tracking reference signal,TRS)也是CSI-RS的一种。应理解,目标参考信号一般可以是下行信号。
终端设备可以认为具有QCL关联关系两个参考信号的空间特性参数是相同的,从而基于源参考信号的标识(也可以称为源参考信号资源索引)可推断出目标参考信号的空间特性参数。
空间特性参数可以包括以下参数中的一种或多种:入射角(angle of arrival,AoA)、主(dominant)入射角AoA、平均入射角、入射角的功率角度谱(power angular spectrum,PAS)、出射角(angle of departure,AoD)、主出射角、平均出射角、出射角的功率角度谱、终端设备发送波束成型、终端设备接收波束成型、空间信道相关性、网络设备发送波束成型、网络设备接收波束成型、平均信道增益、平均信道时延(average delay)、时延扩展(delay spread)、多普勒扩展(Doppler spread)、多普勒频移(doppler shift)、空间接收参数(spatial Rx parameters)等。
其中,上述角度可以为不同维度的分解值,或不同维度分解值的组合。天线端口可以为具有不同天线端口编号的天线端口,和/或,具有相同天线端口号在不同时间和/或频率和/或码域资源内进行信息发送或接收的天线端口,和/或,具有不同天线端口号在不同时间和/或频率和/或码域资源内进行信息发送或接收的天线端口。
这些空间特性参数描述了源参考信号与目标参考信号的天线端口间的空间信道特性, 有助于终端设备根据该QCL信息完成接收侧波束赋形或接收处理过程。应理解,终端设备可以根据QCL信息指示的源参考信号的接收波束信息,接收目标参考信号;这些空间特性参数还有助于终端设备根据该空间相关信息完成发射侧波束赋形或者发射处理过程,应理解,终端设备可以根据空间相关信息指示的源参考信号的发射波束信息,发射目标参考信号。
现有标准中定义了四种类型的QCL,网络设备可以同时给终端设备配置一个或多种类型的QCL,如网络设备配置给终端设备的QCL type可以是type A和type D,或者网络设备配置给终端设备QCL type可以是type C和type D:
QCL types A:Doppler shift,Doppler spread,average delay,delay spread
QCL types B:Doppler shift,Doppler spread
QCL types C:average delay,Doppler shift
QCL types D:Spatial Rx parameter
当QCL关系指类型D的QCL关系时,可以认为是空域QCL。当天线端口满足空域QCL关系时,可以是下行信号的端口和下行信号的端口之间,或上行信号的端口和上行信号的端口之间的QCL关系(上文中称为spatial relation),可以是两个信号具有相同的AOA或AOD,用于表示具有相同的接收波束或发射波束。又例如对于下行信号和上行信号间或上行信号与下行信号的端口间的QCL关系,可以是两个信号的AOA和AOD具有对应关系,或两个信号的AOD和AOA具有对应关系,即可以利用波束互易性,根据下行接收波束确定上行发射波束,或根据上行发射波束确定下行接收波束。
从发送端来看,如果说两个天线端口是空域QCL的,则可以是指这两个天线端口的对应的波束方向在空间上是一致的。从接收端来看,如果说两个天线端口是空域QCL的,则可以是指接收端能够在同一波束方向上接收到这两个天线端口发送的信号。
具有空域QCL关联关系端口上传输的信号还可以具有对应的波束,对应的波束可以包括以下至少之一:相同的接收波束、相同的发射波束、与接收波束对应的发射波束(对应于有互易的场景)、与发射波束对应的接收波束(对应于有互易的场景)。
具有空域QCL关联关系端口上传输的信号还可以理解为使用相同的空间滤波器(spatial filter)接收或发送信号。空间滤波器可以为以下至少之一:预编码,天线端口的权值,天线端口的相位偏转,天线端口的幅度增益。
具有空域QCL关联关系端口上传输的信号还可以理解为具有对应的波束对连接(beam pair link,BPL),对应的BPL包括以下至少之一:相同的下行BPL,相同的上行BPL,与下行BPL对应的上行BPL,与上行BPL对应的下行BPL。
图1是适用于本申请实施例的无线通信***100的示意图。如1图所示,该无线通信***100可以包括至少一个接入网设备,例如图1所示的接入网设备102、接入网设备103和接入网设备104,该无线通信***100还可以包括至少一个终端设备,例如图1所示的终端设备101。网络设备和终端设备均可配置多个天线,网络设备与终端设备可使用多天线技术通信。
除了接入网设备和终端设备外,该无线通信***100中还可以包括定位管理功能(location management function,LMF)网元105。LMF网元105可以用于实现终端设备的位置估计。LMF网元105可以部署于核心网内部,即LMF网元105也属于一种核心网 网元。LMF网元105可以通过移动性管理功能(access and mobility management function,AMF)网元(图中未示出)与接入网设备进行通信。为了便于描述,本申请实施例中将LMF网元通过AMF网元向接入网设备发送信息简称为LMF网元向接入网设备发送信息。换句话说,本申请实施例中所称的LMF网元向接入网设备发送消息可以理解为该LMF网元先将信息发送至AMF网元,该AMF网元将该信息转发至该接入网设备。
LMF网元105还可以与终端设备101通信。例如,LMF网元105可以通过LTE定位协议(LTE positioning protocol,LPP)与终端设备101进行通信。
在一些实施例中,LMF网元105的部分功能,例如定位管理组件(location management component,LMC),可以集成在接入网设备中。例如,接入网设备102、接入网设备103和接入网设备104都集成了LMC。集成在接入网设备内的LMF网元的LMC向接入网设备发送信息也可以认为是LMF网元向接入网设备发送信息。
本领域技术人员可以理解,无线通信***100以及以下通信方法中进行交互的网络装置和终端装置分别为网络设备和终端设备,全文为阐述方便,以网络装置和终端装置的表述进行方案的解释和说明。下文中部分内容涉及网络装置和终端装置分别为网络设备和终端设备中的部件时,则不应理解为网络设备和终端设备本身。
图2是根据本申请实施例提供是一种发送定位参考信号的方法的示意性流程图。图2所示的方法可以应用于如图1所示的无线通信***100中。为了便于描述,图2所示方法是以LMF网元,接入网设备和终端设备进行描述的。图2所示方法的中的步骤也可以由LMF网元中的部件(例如芯片或电路)、接入网设备中的部件(例如芯片或电路)和终端设备中的部件(例如芯片或电路)执行。
201,LMF网元向接入网设备发送终端设备的标识信息、PRS指示信息和PRS标识信息。相应的,该接入网设备接收该LMF网元发送的终端设备的标识信息、PRS指示信息和PRS标识信息。可选的,该接入网设备可以是为该终端设备提供服务的接入网设备。换句话说,该接入网设备可以是该终端设备的服务接入网设备。
以图1所示的无线通信***100为例,假设为终端设备101的提供服务的接入网设备是接入网设备102。在此情况下,LMF网元105可以将终端设备101的标识信息、PRS指示信息和PRS标识信息发送至接入网设备102。
该终端设备的标识信息可以是能够用于识别出一个终端设备身份的信息。例如,该终端设备的标识信息可以是国际移动用户识别码(International Mobile Subscriber Identity,IMSI),或者,国际移动设备识别码(International Mobile Equipment Identity,IMEI),或者,临时移动用户标识(Temporary Mobile Subscriber Identity,TMSI)等。
该PRS指示信息用于指示向该终端设备发送第一PRS。PRS的类型可以包括周期性PRS、非周期PRS、半持续PRS等。
周期性PRS的发送周期和位置(即用于发送PRS的时频资源)都是配置好的。例如,增强型服务移动定位中心(Enhanced Serving Mobile Location Center,E-SMLC)可以配置周期性PRS的发送周期和位置,将配置好的发送周期和位置通过信息元素(Information Element,IE)通知给终端设备。终端设备在接收的该IE后,可以确定用于接收周期性PRS的周期和位置,并在相应的周期和位置接收PRS。
该第一PRS的类型不包括周期性PRS。换句话说,该第一PRS的类型是除周期性PRS 以外的其他类型的PRS。换句话说,该第一PRS的类型可以是非周期PRS,或者,半持续PRS。非周期PRS和半持续PRS可以称为增强型的PRS。
该PRS标识信息包括至少一个第二PRS的标识。该第二PRS是已经发送给该终端设备的PRS。该第二PRS的类型可以是周期性PRS、非周期PRS,或者半持续PRS。该第一PRS与该至少一个第二PRS中的一个具有QCL关联关系。换句话说,该第一PRS与该至少一个第二PRS中的一个第二PRS的空间特性参数是相同的。
第二PRS的标识可以是第二PRS的资源标识(resource ID)。
可选的,该LMF网元还可以向该接入网设备发送非零功率(Non-Zero-Power,NZP)-信道状态信息(Channel State Information,CSI)-参考信号(Reference Signal,RS)资源集合(resource set)IE。该NZP-CSI-RS资源集合IE中可以包括定位指示信息。若该定位指示信息的值为第一预定值(例如,预定值为真(ture),或者1,或者,11等),则表示该NZP-CSI-RS资源集合信息元素中的各个参数(例如NZP-CSI-RS资源集合,重复(repetition)指示、非周期触发偏移(aperiodicTriggeringOffset)、传输信息(transmission information,tra-Info)等)是用于进行定位测量的参数;若该定位信息指示信息的值为第二预设值(例如,假(false),或者0,或者,00等)或者NZP-CSI-RS资源集合IE中未包括该定位指示信息,则表示该NZP-CSI-RS资源集合IE中的各个参数是用于进行CSI测量的参数。
可选的,该LMF网元还可以向该接入网设备发送定位测量专用IE。该定位测量专用IE中可以包括用于进行定位测量的参数,例如NZP-CSI-RS资源集合或ZP-CSI-RS资源集合,重复(repetition)指示、非周期触发偏移(aperiodicTriggeringOffset)、传输信息(transmission information,tra-Info)等。
202,该接入网设备可以向该终端设备发送该PRS标识信息。相应的,该终端设备可以接收该PRS标识信息。
在该第一PRS的类型为非周期性PRS的情况下,该接入网设备可以向该终端设备发送RRC层消息,该RRC层消息携带该PRS标识信息。
在一些实施例中,该RRC层消息可以包括信道状态信息(channel state information,CSI)-非周期触发状态列表(aperiodic trigger state list)IE。该CSI非周期触发状态列表IE中可以包括该PRS标识信息。
该CSI-非周期触发状态列表IE中可以包括一个QCL字段(field)。该QCL字段可以称为qcl-info-r16字段。qcl-info-r16字段中可以包括该至少一个第二PRS的标识。该qcl-info-r16字段可以与一个NZP-CSI-RS资源集合相关联。该NZP-CSI-RS资源集合可以包括至少一个资源(resource)。该至少一个资源与该qcl-info-r16字段包括的至少一个第二PRS的标识一一对应。NZP-CSI-RS资源集合可以有一个标识,该至少一个资源中的每个资源可以有一个标识。
例如,该CSI-非周期触发状态列表IE可以包括如下内容:
qcl-info-r16 PRS-resource-ID 1
PRS-resource-ID 2
PRS-resource-ID 3
如上所述的CSI-非周期触发状态列表IE中包括qcl-info-r16字段,该qcl-info-r16字 段中包括三个第二PRS的标识。PRS-resource-ID 1、PRS-resource-ID 2和PRS-resource-ID3分别表示这三个第二PRS的标识。与该qcl-info-r16字段相关联的NZP-CSI-RS资源集合(例如,该NZP-CSI-RS资源集合可以是上述携带有定位指示信息的NZP-CSI-RS资源集合IE中的NZP-CSI-RS资源集合)中包括三个资源。这三个资源与三个第二PRS的标识一一对应。例如,三个资源中的第一个资源对应于PRS-resource-ID 1,第二个资源对应于PRS-resource-ID 2,第三个资源对应于PRS-resource-ID 3。
可以理解的是,该CSI-非周期触发状态列表IE中除了包括上述qcl-info-r16字段以外,还可以包括其他字段,例如CSI-非周期触发状态列表(CSI-AperiodicTriggerStateList)字段、CSI-非周期触发状态(CSI-AperiodicTriggerState)字段等。本申请实施例对这些字段的具体内容并不做具体限定。
在另一些实施例中,该RRC层消息可以包括该CSI-非周期触发状态列表IE和至少一个传输配置指示(transmission configuration indicator,TCI)-状态(state)IE。
该CSI-非周期触发状态列表IE中可以包括一个QCL字段。该QCL字段可以称为qcl-info字段。该qcl-info字段可以包括一个TCI-state标识列表,该TCI-state标识列表中包括至少一个TCI-state标识。该至少一个TCI-state标识与该至少一个TCI-state IE一一对应。该qcl-info字段可以与一个NZP-CSI-RS资源集合相关联。该NZP-CSI-RS资源集合可以包括至少一个资源(resource)。该至少一个资源与该qcl-info字段包括的至少一个TCI-state标识一一对应。
可以理解的是,该CSI-非周期触发状态列表IE中除了包括上述qcl-info字段以外,还可以包括其他字段,例如CSI-非周期触发状态列表(CSI-AperiodicTriggerStateList)字段、CSI-非周期触发状态(CSI-AperiodicTriggerState)字段等。本申请实施例对这些字段的具体内容并不做具体限定。
该至少一个TCI-state IE中的每个TCI-state IE中包括tci-StateID字段。该tci-StateID字段可以包括TCI-state标识。TCI-state标识是该TCI-state标识列表中与该TCI-state IE对应的TCI-state标识。每个TCI-state IE中还包括一个字段,该字段可以包括一个第二PRS的标识。该字段可以称为prs字段。每个TCI-state IE中还可以包括一个qcl-类型(type)字段。该qcl-type字段用于指示关联的QCL的类型。例如,关联的QCL的类型可以是QCL type A、type B、type D、type A+D,或者type C+D等。
可以理解的是,该TCI-state IE中除了包括上述tci-StateID字段、prs字段和qcl-type字段以外,还可以包括其他字段,例如qcl-info字段、csi-rs字段等。本申请实施例对这些字段的具体内容并不做具体限定。
例如,该CSI-非周期触发状态列表IE中可以包括如下TCI-state标识列表:
qcl-info TCI-State 1
TCI-State 2
TCI-State 3
如上所述的CSI-非周期触发状态列表IE中包括qcl-info字段,该qcl-info字段中包括的TCI-state标识列表中共包括三个TCI-state标识。TCI-State 1、TCI-State 2和TCI-State 3分别表示这三个TCI-State标识。
与TCI-State 1对应的TCI-state IE可以包括如下内容:
tci-StateID TCI-State 1
prs PRS-resource-ID 1
qcl-type type D
如上所述的TCI-state IE中包括tci-StateID字段、prs字段和qcl-type字段。该tci-StateID字段包括的TCI-State标识为TCI-State 1。该prs字段包括的第二PRS的标识为PRS-resource-ID 1。该qcl-type字段指示的QCL关联的类型为类型D。
与该qcl-info字段相关联的NZP-CSI-RS资源集合(例如,该NZP-CSI-RS资源集合可以是上述携带有定位指示信息的NZP-CSI-RS资源集合IE中的NZP-CSI-RS资源集合)中包括三个资源。这三个资源与三个TCI-state标识一一对应。例如,三个资源中的第一个资源对应于TCI-state 1,第二个资源对应于TCI-state 2,第三个资源对应于TCI-state 3。
在该第一PRS的类型为半持续PRS的情况下,该接入网设备可以向该终端设备发送MAC层消息,该MAC层消息包括该PRS标识信息。
该MAC层消息可以包括MAC子头(subheader)。该MAC子头包括该PRS标识信息。例如,图3是一个MAC子头的结构示意图。如图3所示的MAC子头中共包括4+N个字节,N为大于或等于0的整数。该字节的长度可以是8个比特。
如图3所示,该MAC子头中的第1个字节(即字节1)中的A/D字段表示是否激活(activate)或去激活(deactivate)指示的半静态(Semi-Persistent)信道状态信息(Channel State Information,CSI)-参考信号(Reference Signal,RS)资源集合或SP CSI-干扰测量(Interference Measurement,IM)资源集合。若A/D字段的值为1,则指示激活,否则指示去激活。
服务小区ID(Serving Cell ID)字段指示应用MAC CE的服务小区的身份。
BWP ID字段用于指示下行(Downlink,DL)部分带宽(bandwidth part,BWP),该MAC控制元素(control element,CE)应用该BWP作为DCI中字段“bandwidth part indicator”的码点(codepoint)。
该MAC子头中的R表示保留字段。
SP CSI-RS资源集合ID(resource set ID)字段包括了NZP-CSI-RS资源集合(resource set)集合的索引,该NZP-CSI-RS资源集合包括半静态(Semi Persistent)NZP-CSI-RS资源。该索引指示该半静态NZP-CSI-RS资源集合,该字段可以被激活或去激活。
IM字段用于指示8比特是否包括SP CSI-IM资源集合标识域。若IM字段的值为1,则表示该MAC CE中包括SP CSI-IM资源集合ID字段。若IM字段的值为0,则该MAC CE中不包括SP CSI-IM资源集合ID字段。
SP CSI-IM资源集合ID字段包括了CSI-IM资源集合的索引。该CSI-IM资源集合包括半静态CSI-IM资源。该索引指示了半静态CSI-IM资源集合。该字段可以被激活或去激活。
PRS resource ID
0字段至PRS resource ID
N字段用于指示该至少一个第二PRS的标识。例如,PRS resource ID
i字段用于指示该至少一个第二PRS中的第i个第二PRS的标识,i大于或等于0且小于或等于N。
在另一些实现方式中,MAC子头中可以包括TCI-状态IE,该TCI-状态IE中包括该PRS标识信息。
图4是另一个MAC子头的结构示意图。
图4中的A/D字段、服务小区ID字段、BWP ID字段、R字段、IM字段、SP CSI-RS资源集合ID字段和SP CSI-IM资源集合ID字段的功能与图3所示的MAC子头对应的字段的功能相同,为了简洁,在此就不再赘述。
图4所示的MAC字头中的TCI-state IE
0字段至TCI-state IE
N字段可以用于携带该PRS标识信息。N可以是大于或等于0的整数。
在一些实施例中,TCI-state IE
0字段至TCI-state IE
N字段中的每个TCI-state IE字段可以携带一个第二PRS的标识。
TCI-state IE中包括tci-StateID字段。该tci-StateID字段可以包括TCI-state标识。TCI-state IE中还包括一个字段,该字段可以包括一个第二PRS的标识。该字段可以称为prs字段。TCI-state IE中还可以包括一个qcl-类型(type)字段。该qcl-type字段用于指示关联的QCL的类型。例如,关联的QCL的类型可以是QCL type A、type B、type D、type A+D,或者type C+D等。
为了便于描述,将如图3所示的方式携带该PRS标识信息的方式称为MAC子头直接携带PRS标识信息,将如图4所示的方式携带该PRS标识信息的方式称为MAC子头间接携带PRS标识信息。
203,该终端设备确定目标第二PRS并将第一PRS和目标第二PRS进行QCL关联,得到空间特性参数。
该终端设备在接收到该PRS标识信息后,可以确定接入网设备将要向该终端设备发送第一PRS。因此,该终端设备可以根据该PRS标识信息,将第一PRS和由该PRS标识信息所指示的至少一个第二PRS中的一个进行QCL关联,得到空间特性参数。该空间特性参数是该终端设备确定的与第一PRS具有QCL关联关系的第二PRS(即该目标第二PRS)。
在一些实施例中,该接入网设备向该终端设备发送的PRS标识信息中可以只包括一个第二PRS的标识。在此情况下,该终端设备可以确定该第二PRS就是该目标第二PRS,并将该第一PRS与该第二PRS进行QCL关联。
在另一些实施例中,该PRS标识信息中可以包括多个第二PRS的标识。在此情况下,该接入网设备还可以向该终端设备发送触发信息,该触发信息用于指示该目标第二PRS。该触发信息用于指示该目标第二PRS的标识。该目标第二PRS为该多个第二PRS中的一个。
在该第一PRS的类型为非周期PRS的情况下,该触发信息可以是DCI。换句话说,该接入网设备可以向该终端设备发送DCI。该DCI用于指示目标第二PRS的标识。该DCI中包括该第一PRS的标识,该DCI还可以用于指示该终端设备将接收第一PRS。
在一些实施例中,该DCI可以通过该NZP-CSI-RS资源集合的标识和资源标识指示该目标第二PRS的标识。换句话说,该DCI可以包括NZP-CSI-RS资源集合的标识和资源标识,该NZP-CSI-RS资源集合的标识和资源标识用于指示该目标第二PRS的标识。
在该至少一个第二PRS的标识是由该CSI-非周期触发状态列表IE中的一个字段(例如qcl-info-r16字段)携带的情况下,该终端设备在接收到该DCI的情况下,可以根据该NZP-CSI-RS资源集合的标识确定一个NZP-CSI-RS资源集合;根据该资源标识从该 NZP-CSI-RS资源集合包括的至少一个资源确定一个资源(可以称为目标资源)。该终端设备可以根据该NZP-CSI-RS资源集合中的资源和第二PRS的标识的对应关系,从至少一个第二PRS的标识中确定与该目标资源对应的第二PRS的标识。与该目标资源对应的第二PRS就是该目标第二PRS。此外,该终端设备还可以确定QCL类型是一个预设的类型。换句话说,若该至少一个第二PRS的标识是由该CSI-非周期触发状态列表IE中的一个字段携带,则该第一PRS与该目标第二PRS的QCL关系是一个预设类型的QCL关系。
在该至少一个第二PRS的标识中的每个第二PRS的标识是由一个TCI-state IE携带的情况下,该终端设备在接收到该DCI的情况下,可以根据该NZP-CSI-RS资源集合的标识确定一个NZP-CSI-RS资源集合;根据该资源标识从该NZP-CSI-RS资源集合包括的至少一个资源确定一个资源(可以称为目标资源)。该终端设备可以根据该NZP-CSI-RS资源集合中的资源和TCI-state标识的对应关系,从至少一个TCI-state标识中确定与该目标资源对应的TCI-state标识(可以称为目标TCI-state标识)。与该目标TCI-state标识对应的TCI-state IE中(可以称为目标TCI-state IE)的第二PRS的标识就是该目标第二PRS的标识。此外,该终端设备可以确定该目标TCI-state IE中的qcl-type字段指示的QCL类型是该第一PRS和该第二PRS的QCL关联关系的类型。
在另一些实施例中,该DCI中可以包括一个第二PRS的标识。该第二PRS就是该目标第二PRS的标识。换句话说,该DCI中可以包括该目标第二PRS的标识。在此情况下,该终端设备根据该DCI中包括的第二PRS的标识直接确定该目标第二PRS。
在另一些实施例中,在该至少一个第二PRS的标识中的每个第二PRS的标识是由一个TCI-state IE携带的情况下,该DCI中还可以包括一个TCI-state标识。该TCI-state标识对应的TCI-state IE中的第二PRS的标识是该目标第二PRS的标识。在此情况下,该终端设备根据该TCI-state标识确定TCI-state IE,并从该TCI-state IE中确定该目标第二PRS的标识。
在该第一PRS的类型为半持续PRS的情况下,该触发信息可以是MAC CE。
在一些实施例中,若MAC子头直接携带PRS标识信息,则该MAC CE中可以包括该第一PRS的标识和该第二PRS的标识。该MAC CE用于指示该终端设备将接收第一PRS。该MAC CE还可以用于指示该目标第二PRS。该MAC CE中包括的第二PRS的标识是该目标第二PRS的标识。该终端设备可以根据该MAC CE携带的第二PRS的标识,从如图3所示的多个第二PRS的标识中,确定该目标第二PRS。此外,该终端设备还可以确定QCL类型是一个预设的类型。换句话说,若MAC子头直接携带PRS标识信息,则该第一PRS与该目标第二PRS的QCL关系是一个预设类型的QCL关系。
在另一些实施例中,若MAC子头间接携带PRS标识信息,则该MAC CE可以包括第一PRS的标识和一个TCI-state标识。该MAC CE用于指示该终端设备将接收第一PRS。该MAC CE还可以用于指示该目标第二PRS。该目标第二PRS是与该MAC CE中包括的TCI-state标识对应的第二PRS。该终端设备在接收到该MAC CE后,可以根据从MAC子头包括的多个TCI-state IE中确定与该MAC CE中的TCI-state标识对应的TCI-state IE(可以称为目标TCI-state IE)。该目标TCI-state IE中的tci-StateID字段包括的TCI-state标识与该MAC CE中包括的TCI-state标识相同。该目标TCI-state IE中的prs字段包括的第二PRS的标识是该目标第二PRS的标识。此外,该终端设备可以确定该目标TCI-state IE中 的qcl-type字段指示的QCL类型是该第一PRS和该第二PRS的QCL关联关系的类型。
非周期PRS是由DCI触发的PRS,半持续PRS是由MAC CE触发的PRS。因此,该终端设备在确定DCI触发该第一PRS(即该终端设备接收到的触发信息是DCI)的情况下,可以确定该第一PRS的类型是非周期PRS。该终端设备在确定MAC触发该第一PRS(即该终端设备接收到的触发信息是MAC CE)的情况下,可以确定该第一PRS的类型是半持续PRS。
204,该接入网设备向该终端设备发送该第一PRS。相应的,该终端设备根据该空间特性参数接收该第一PRS。
具有QCL关联关系的参考信号的空间特性参数可以是相同的。在此情况下,该终端设备可以确定该第一PRS的空间特性参数(即步骤203中确定的空间特性参数)与该第二PRS的空间特性参数相同。
本申请实施例还提供一种通信装置。该通信装置可以是图2所示实施例中的LMF网元或者用于LMF网元的芯片。该通信装置可以用于执行图2所示实施例中由LMF网元执行的动作。
图5示出了一种简化的LMF网元结构示意图。LMF网元包括510部分以及520部分。510部分主要用于信号的收发;520部分主要用于对510接收到的信号进行处理等。510部分通常可以称为收发单元、收发机、收发电路、或者收发器等。520部分通常可以称为处理单元、处理器等,用于LMF网元执行上述方法实施例中LMF网元侧的处理操作。
510部分的收发单元,也可以称为收发机或收发器等。可选地,可以将510部分中用于实现接收功能的器件视为接收单元,将用于实现发送功能的器件视为发送单元,即510部分包括接收单元和发送单元。接收单元也可以称为接收机、接收器、或接收电路等,发送单元可以称为发射机、发射器或者发射电路等。
520部分的控制单元可以包括一个或多个单板,每个单板可以包括一个或多个处理器和一个或多个存储器。处理器用于读取和执行存储器中的程序以实现处理功能以及对LMF网元的控制。若存在多个单板,各个单板之间可以互联以增强处理能力。作为一种可选的实施方式,也可以是多个单板共用一个或多个处理器,或者是多个单板共用一个或多个存储器,或者是多个单板同时共用一个或多个处理器。
例如,在一种实现方式中,510部分的收发单元用于执行本申请实施例中LMF网元侧的收发步骤。例如,510部分的收发单元可以用于执行图2中所示的步骤201中LMF网元侧的发送操作。520部分的控制单元可以用于确定步骤201中LMF网元发送的信息。520部分的处理单元还可以用于控制收发单元收发信号。
还应理解,图5仅为示例而非限定,上述包括收发单元和处理单元的LMF网元可以不依赖于图5所示的结构。
当该通信装置为用于LMF网元的芯片时,该芯片包括收发单元和处理单元。其中,收发单元可以是输入输出电路、通信接口;处理单元为该芯片上集成的处理器或者微处理器或者集成电路。
本申请实施例还提供一种通信装置。该通信装置可以是图2所示实施例中的接入网设备或者芯片。该通信装置可以用于执行图2所示实施例中由接入网设备执行的动作。
图6示出了一种简化的接入网设备结构示意图。接入网设备包括610部分以及620部 分。610部分主要用于射频信号的收发以及射频信号与基带信号的转换;620部分主要用于基带处理,对接入网设备进行控制等。610部分通常可以称为收发单元、收发机、收发电路、或者收发器等。620部分通常是接入网设备的控制中心,通常可以称为处理单元,用于控制接入网设备执行上述方法实施例中接入网设备侧的处理操作。
610部分的收发单元,也可以称为收发机或收发器等,其包括天线和射频单元,其中射频单元主要用于进行射频处理。可选地,可以将610部分中用于实现接收功能的器件视为接收单元,将用于实现发送功能的器件视为发送单元,即610部分包括接收单元和发送单元。接收单元也可以称为接收机、接收器、或接收电路等,发送单元可以称为发射机、发射器或者发射电路等。
620部分可以包括一个或多个单板,每个单板可以包括一个或多个处理器和一个或多个存储器。处理器用于读取和执行存储器中的程序以实现基带处理功能以及对接入网设备的控制。若存在多个单板,各个单板之间可以互联以增强处理能力。作为一种可选的实施方式,也可以是多个单板共用一个或多个处理器,或者是多个单板共用一个或多个存储器,或者是多个单板同时共用一个或多个处理器。
例如,在一种实现方式中,610部分的收发单元用于执行本申请实施例中接入网设备侧的收发步骤。例如,610部分的收发单元可以用于执行图2中所示的步骤201中接入网设备侧的接收操作,610部分的收发单元还可以用于步骤202和步骤204中接入网设备侧的发送操作。620部分的处理单元用于确定步骤202和步骤204发送的信息。620部分的处理单元还可以用于控制收发单元收发信号。
例如,610部分,可以用于接收来自于定位管理功能LMF网元的终端设备的标识信息、定位参考信号PRS指示信息、和PRS标识信息,该PRS指示信息用于指示向该终端设备发送第一PRS,该PRS标识信息包括至少一个第二PRS的标识,该第一PRS与该至少一个第二PRS中的一个第二PRS具有准共址QCL关联关系,其中该第一PRS的类型不包括周期性PRS。610部分,还可以用于向该终端设备发送该PRS标识信息。610部分,还可以用于向该终端设备发送该第一PRS。
可选的,610部分,具体用于当该第一PRS的类型为非周期PRS时,向该终端设备发送无线资源控制RRC层消息,该RRC层消息携带该PRS标识信息。
可选的,该RRC层消息包括信道状态信息非周期触发状态列表信息元素,该信道状态信息非周期触发状态列表信息元素包括该PRS标识信息。
可选的,该RRC层消息包括至少一个传输配置指示状态信息元素,该至少一个第二PRS的标识分别由该至少一个传输配置指示状态信息元素携带。
可选的,610部分,还用于向该终端设备发送下行控制信息DCI,该DCI用于指示目标第二PRS的标识,该目标第二PRS为该至少一个第二PRS中与该第一PRS具有QCL关联关系的第二PRS。
可选的,610部分,具体用于当该第一PRS的类型为半持续PRS时,向该终端设备发送介质访问控制MAC层消息,该MAC层消息包括该PRS标识信息。
可选的,该MAC层消息包括MAC子头,该MAC子头包括该PRS标识信息。
可选的,该MAC层消息包括MAC子头,该MAC子头包括至少一个传输配置指示状态信息元素,该至少一个第二PRS的标识分别由该至少一个传输配置指示状态信息元 素携带。
可选的,610部分,还用于向该终端设备发送MAC控制元素CE,该MAC CE用于指示目标第二PRS的标识,该目标第二PRS为该至少一个第二PRS中与该第一PRS具有QCL关联关系的第二PRS。
可选的,610部分,还用于向该终端设备发送非零功率信道状态信息参考信号NZP-CSI-RS资源集合信息元素,该NZP-CSI-RS资源集合信息元素包括定位指示信息,定位指示信息用于指示该NZP-CSI-RS资源集合元素中包括的参数为用于定位测量。
还应理解,图6仅为示例而非限定,上述包括收发单元和处理单元的接入网设备可以不依赖于图6所示的结构。
当该通信装置为用于接入网设备的芯片时,该芯片包括收发单元和处理单元。其中,收发单元可以是输入输出电路、通信接口;处理单元为该芯片上集成的处理器或者微处理器或者集成电路。
另外,接入网设备不限于上述形态,也可以是其它形态:例如:包括基带处理单元(Building Base band Unit,BBU)和自适应无线单元(adaptive radio unit,ARU),或BBU和有源天线单元(active antenna unit,AAU);也可以为客户终端设备(customer premises equipment,CPE),还可以为其它形态,本申请不限定。
上述BBU可以用于执行前面方法实施例中描述的由接入网设备内部实现的动作,而射频拉远单元(Remote Radio Unit,RRU)可以用于执行前面方法实施例中描述的接入网设备向终端设备发送的动作。具体请见前面方法实施例中的描述,此处不再赘述。
图7示出了一种简化的终端设备的结构示意图。便于理解和图示方便,图7中,终端设备以手机作为例子。如图7所示,终端设备包括处理器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理,以及对终端设备进行控制,执行软件程序,处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置,例如触摸屏、显示屏,键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是,有些种类的终端设备可以不具有输入输出装置。
当需要发送数据时,处理器对待发送的数据进行基带处理后,输出基带信号至射频电路,射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端设备时,射频电路通过天线接收到射频信号,将射频信号转换为基带信号,并将基带信号输出至处理器,处理器将基带信号转换为数据并对该数据进行处理。为便于说明,图7中仅示出了一个存储器和处理器,在实际的终端设备产品中,可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置,也可以是与处理器集成在一起,本申请实施例对此不做限制。
在本申请实施例中,可以将具有收发功能的天线和射频电路视为终端设备的收发单元,将具有处理功能的处理器视为终端设备的处理单元。
如图7所示,终端设备包括收发单元710和处理单元720。收发单元710也可以称为收发器、收发机、收发装置等。处理单元720也可以称为处理器,处理单板,处理模块、 处理装置等。可选地,可以将收发单元710中用于实现接收功能的器件视为接收单元,将收发单元710中用于实现发送功能的器件视为发送单元,即收发单元710包括接收单元和发送单元。收发单元有时也可以称为收发机、收发器、或收发电路等。接收单元有时也可以称为接收机、接收器、或接收电路等。发送单元有时也可以称为发射机、发射器或者发射电路等。
例如,在一种实现方式中,处理单元720可以用于执行本申请实施例中终端设备侧的处理步骤。例如,处理单元720可以用于执行图2所示的步骤203中的处理动作。收发单元710可以用于执行本申请实施例中终端设备侧的收发步骤。例如,收发单元710可以用于执行图2中所示的步骤202和步骤204中的接收操作。720部分的处理单元还可以用于控制收发单元收发信号。
例如,收发单元710,用于接收来自于接入网设备的定位参考信号PRS标识信息,该PRS标识信息包括至少一个第二PRS的标识,第一PRS与目标第二PRS具有准共址QCL关联关系,该目标第二PRS为该至少一个第二PRS中的一个第二PRS,该第一PRS的类型不包括周期性PRS。处理单元720,用于将该第一PRS与该目标第二PRS进行QCL关联,得到空间特性参数。收发单元710,还用于根据该空间特性参数接收来自于该接入网设备的该第一PRS。
可选的,收发单元710,具体用于接收来自于该接入网设备的无线资源控制RRC层消息,该RRC层消息携带该PRS标识信息。
可选的,该RRC层消息包括信道状态信息非周期触发状态列表信息元素,该信道状态信息非周期触发状态列表信息元素包括该PRS标识信息。
可选的,该RRC层消息包括至少一个传输配置指示状态信息元素,该至少一个第二PRS的标识分别由该至少一个传输配置指示状态信息元素携带。
可选的,收发单元710,还用于在该处理单元将该第一PRS与目标第二PRS进行QCL关联之前,接收来自于该接入网设备的下行控制信息DCI,该DCI用于指示该目标第二PRS的标识。处理单元720,还用于确定该第一PRS的类型为非周期PRS。
可选的,收发单元710,具体用于接收来自于该接入网设备的介质访问控制MAC层消息,该MAC层消息携带该PRS标识信息。
可选的,该MAC层消息包括MAC子头,该MAC子头包括该PRS标识信息。
可选的,该MAC层消息包括MAC子头,该MAC子头包括至少一个传输配置指示状态信息元素,该至少一个第二PRS的标识分别由该至少一个传输配置指示状态信息元素携带。
可选的,收发单元710,还用于在该处理单元将该第一PRS与目标第二PRS进行QCL关联之前,接收来自于该接入网设备的MAC控制元素CE,该MAC CE用于指示该目标第二PRS的标识;该处理单元,还用于确定该第一PRS的类型为半持续PRS。
可选的,收发单元710,还用于接收来自于该接入网设备的非零功率信道状态信息参考信号NZP-CSI-RS资源集合信息元素,该NZP-CSI-RS资源集合信息元素包括定位指示信息,定位指示信息用于指示该NZP-CSI-RS资源集合元素中包括的参数用于定位测量。
应理解,图7仅为示例而非限定,上述包括收发单元710和处理单元720的终端设备可以不依赖于图7所示的结构。
当该通信设备为用于终端设备的芯片时,该芯片包括收发单元和处理单元。其中,收发单元可以是输入输出电路或通信接口;处理单元可以为该芯片上集成的处理器或者微处理器或者集成电路。
本申请实施例中的芯片可以是编程门阵列(field programmable gate array,FPGA),可以是专用集成芯片(application specific integrated circuit,ASIC),还可以是***芯片(system on chip,SoC),还可以是中央处理器(central processor unit,CPU),还可以是网络处理器(network processor,NP),还可以是数字信号处理电路(digital signal processor,DSP),还可以是微控制器(micro controller unit,MCU),还可以是可编程控制器(programmable logic device,PLD)、其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件,或其他集成芯片。
在实现过程中,上述方法的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的计算机程序或指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。为避免重复,这里不再详细描述。
应注意,本申请实施例中的处理器可以是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的计算机程序或指令完成。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
可以理解,本申请实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(read-only memory,ROM)、可编程只读存储器(programmable ROM,PROM)、可擦除可编程只读存储器(erasable PROM,EPROM)、电可擦除可编程只读存储器(electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM,DR RAM)。应注意,本文描述的***和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
根据本申请实施例提供的方法,本申请还提供一种计算机程序产品,该计算机程序产品包括:计算机程序代码,当该计算机程序代码在计算机上运行时,使得该计算机执行图2所示实施例的方法。
根据本申请实施例提供的方法,本申请还提供一种计算机可读介质,该计算机可读介质存储有程序代码,当该程序代码在计算机上运行时,使得该计算机执行图2所示实施例的方法。
根据本申请实施例提供的方法,本申请还提供一种***,其包括前述的一个或多个终端设备、一个或多个接入网设备以及LMF网元。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的***、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的***、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个***,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。
Claims (22)
- 一种发送定位参考信号的方法,其特征在于,包括:接收来自于定位管理功能LMF网元的终端设备的标识信息、定位参考信号PRS指示信息、和PRS标识信息,所述PRS指示信息用于指示向所述终端设备发送第一PRS,所述PRS标识信息包括至少一个第二PRS的标识,所述第一PRS与所述至少一个第二PRS中的一个第二PRS具有准共址QCL关联关系,其中所述第一PRS的类型不包括周期性PRS;向所述终端设备发送所述PRS标识信息;向所述终端设备发送所述第一PRS。
- 如权利要求1所述的方法,其特征在于,当所述第一PRS的类型为非周期PRS时,所述向所述终端设备发送所述PRS标识信息,包括:向所述终端设备发送无线资源控制RRC层消息,所述RRC层消息携带所述PRS标识信息。
- 如权利要求2所述的方法,其特征在于,所述RRC层消息包括信道状态信息非周期触发状态列表信息元素,所述信道状态信息非周期触发状态列表信息元素包括所述PRS标识信息。
- 如权利要求2所述的方法,其特征在于,所述RRC层消息包括至少一个传输配置指示状态信息元素,所述至少一个第二PRS的标识分别由所述至少一个传输配置指示状态信息元素携带。
- 如权利要求2至4中任一项所述的方法,其特征在于,所述方法还包括:向所述终端设备发送下行控制信息DCI,所述DCI用于指示目标第二PRS的标识,所述目标第二PRS为所述至少一个第二PRS中与所述第一PRS具有QCL关联关系的第二PRS。
- 如权利要求1所述的方法,其特征在于,当所述第一PRS的类型为半持续PRS时,所述向所述终端设备发送所述PRS标识信息,包括:向所述终端设备发送介质访问控制MAC层消息,所述MAC层消息包括所述PRS标识信息。
- 如权利要求6所述的方法,其特征在于,所述MAC层消息包括MAC子头,所述MAC子头包括所述PRS标识信息。
- 如权利要求6所述的方法,其特征在于,所述MAC层消息包括MAC子头,所述MAC子头包括至少一个传输配置指示状态信息元素,所述至少一个第二PRS的标识分别由所述至少一个传输配置指示状态信息元素携带。
- 如权利要求6至8中任一项所述的方法,其特征在于,所述方法还包括:向所述终端设备发送MAC控制元素CE,所述MAC CE用于指示目标第二PRS的标识,所述目标第二PRS为所述至少一个第二PRS中与所述第一PRS具有QCL关联关系的第二PRS。
- 如权利要求1至9中任一项所述的方法,其特征在于,所述方法还包括:向所述终端设备发送非零功率信道状态信息参考信号NZP-CSI-RS资源集合信息元素,所述NZP-CSI-RS资源集合信息元素包括定位指示信息,定位指示信息用于指示所述 NZP-CSI-RS资源集合元素中包括的参数为用于定位测量。
- 一种接收定位参考信号方法,其特征在于,所述方法包括:接收来自于接入网设备的定位参考信号PRS标识信息,所述PRS标识信息包括至少一个第二PRS的标识,第一PRS与目标第二PRS具有准共址QCL关联关系,所述目标第二PRS为所述至少一个第二PRS中的一个第二PRS,所述第一PRS的类型不包括周期性PRS;将所述第一PRS与所述目标第二PRS进行QCL关联,得到空间特性参数;根据所述空间特性参数接收来自于所述接入网设备的所述第一PRS。
- 如权利要求11所述的方法,其特征在于,所述接收来自于接入网设备的定位参考信号PRS标识信息,包括:接收来自于所述接入网设备的无线资源控制RRC层消息,所述RRC层消息携带所述PRS标识信息。
- 如权利要求12所述的方法,其特征在于,所述RRC层消息包括信道状态信息非周期触发状态列表信息元素,所述信道状态信息非周期触发状态列表信息元素包括所述PRS标识信息。
- 如权利要求12所述的方法,其特征在于,所述RRC层消息包括至少一个传输配置指示状态信息元素,所述至少一个第二PRS的标识分别由所述至少一个传输配置指示状态信息元素携带。
- 如权利要求12至14中任一项所述的方法,其特征在于,在所述将所述第一PRS与目标第二PRS进行QCL关联之前,所述方法还包括:接收来自于所述接入网设备的下行控制信息DCI,所述DCI用于指示所述目标第二PRS的标识,确定所述第一PRS的类型为非周期PRS。
- 如权利要求11所述的方法,其特征在于,所述接收来自于接入网设备的定位参考信号PRS标识信息,包括:接收来自于所述接入网设备的介质访问控制MAC层消息,所述MAC层消息携带所述PRS标识信息。
- 如权利要求16所述的方法,其特征在于,所述MAC层消息包括MAC子头,所述MAC子头包括所述PRS标识信息。
- 如权利要求16所述的方法,其特征在于,所述MAC层消息包括MAC子头,所述MAC子头包括至少一个传输配置指示状态信息元素,所述至少一个第二PRS的标识分别由所述至少一个传输配置指示状态信息元素携带。
- 如权利要求16至18中任一项所述的方法,其特征在于,在所述将所述第一PRS与目标第二PRS进行QCL关联之前,所述方法还包括:接收来自于所述接入网设备的MAC控制元素CE,所述MAC CE用于指示所述目标第二PRS的标识,确定所述第一PRS的类型为半持续PRS。
- 如权利要求11至19中任一项所述的方法,其特征在于,所述方法还包括:接收来自于所述接入网设备的非零功率信道状态信息参考信号NZP-CSI-RS资源集合 信息元素,所述NZP-CSI-RS资源集合信息元素包括定位指示信息,定位指示信息用于指示所述NZP-CSI-RS资源集合元素中包括的参数用于定位测量。
- 一种通信装置,其特征在于,所述通信装置包括收发单元、处理单元和存储单元;所述存储单元,用于存储计算机程序;所述处理单元,用于控制所述收发单元收发信号;所述处理单元,还用于从所述存储单元中调用并运行所述计算机程序,使得所述通信装置执行如权利要求1至10,或者11至20中任一项所述的方法。
- 一种芯片,其特征在于,所述芯片包括处理器与数据接口,所述处理器通过所述数据接口读取存储器上存储的计算机程序,以执行如权利要求1至10,或者11至20中任一项所述的方法。
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