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WO2019242635A1 - Nr系统的定位参考信号配置、接收方法和设备 - Google Patents

Nr系统的定位参考信号配置、接收方法和设备 Download PDF

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Publication number
WO2019242635A1
WO2019242635A1 PCT/CN2019/091865 CN2019091865W WO2019242635A1 WO 2019242635 A1 WO2019242635 A1 WO 2019242635A1 CN 2019091865 W CN2019091865 W CN 2019091865W WO 2019242635 A1 WO2019242635 A1 WO 2019242635A1
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WIPO (PCT)
Prior art keywords
prs
information
configuration information
target configuration
terminal device
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Application number
PCT/CN2019/091865
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English (en)
French (fr)
Inventor
司晔
孙鹏
Original Assignee
维沃移动通信有限公司
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Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to EP19822998.1A priority Critical patent/EP3796586A4/en
Priority to KR1020207035987A priority patent/KR102708668B1/ko
Priority to JP2020571639A priority patent/JP2021528022A/ja
Publication of WO2019242635A1 publication Critical patent/WO2019242635A1/zh
Priority to US17/111,028 priority patent/US20210091905A1/en

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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
    • 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
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0205—Details
    • G01S5/0236—Assistance data, e.g. base station almanac
    • 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
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0295—Proximity-based methods, e.g. position inferred from reception of particular signals
    • 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
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/10—Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements, e.g. omega or decca systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present disclosure relates to the field of communication technology, and more particularly, to a positioning reference signal configuration and receiving method and device for an NR system.
  • a Positioning Reference Signal is transmitted on a resource block in a downlink subframe configured by a network device for positioning reference signal transmission, and is transmitted on an antenna port. (antenna port) 6.
  • the PRS cannot be mapped to resource particles (Resources) assigned to the Physical Broadcast Channel (PBCH), Primary Synchronization Signal (PSS), and Secondary Synchronization Signal (SSS). Element (RE) and PRS cannot overlap with cell-specific reference signals (CRS) sent on any antenna port.
  • Resource particles Resource particles assigned to the Physical Broadcast Channel (PBCH), Primary Synchronization Signal (PSS), and Secondary Synchronization Signal (SSS).
  • PBCH Physical Broadcast Channel
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • Element (RE) and PRS cannot overlap with cell-specific reference signals (CRS) sent on any antenna port.
  • CRS cell-specific reference signals
  • NR New Radio
  • UE User Equipment
  • Some embodiments of the present disclosure provide a positioning reference signal configuration and receiving method and device for an NR system to solve a problem that a UE cannot obtain a PRS in the NR system.
  • a positioning reference signal configuration method for an NR system is provided, and the method is applied to a network device.
  • the method includes:
  • a positioning reference signal receiving method for an NR system is provided and applied to a terminal device.
  • the method includes:
  • Receive first target configuration information where the first target configuration information is used to configure a positioning reference signal PRS of the terminal device.
  • a network device includes:
  • a first sending module is configured to send first target configuration information, where the first target configuration information is used to configure a positioning reference signal PRS of a terminal device.
  • a terminal device includes:
  • a first receiving module is configured to receive first target configuration information, where the first target configuration information is used to configure a positioning reference signal PRS of the terminal device.
  • a network device includes a memory, a processor, and a wireless communication program stored on the memory and operable on the processor.
  • the wireless communication program is processed by the processor.
  • the processor implements the steps of the method according to the first aspect.
  • a terminal device includes a memory, a processor, and a wireless communication program stored in the memory and operable on the processor.
  • the wireless communication program is processed by the processor.
  • the processor implements the steps of the method according to the second aspect.
  • a computer-readable medium stores a wireless communication program.
  • the wireless communication program is executed by a processor, the processor is implemented as implemented in the first aspect or the second aspect. The steps of the method are described.
  • the terminal device in the NR system can obtain the PRS and improve the communication effectiveness.
  • FIG. 1 is one of the schematic flowcharts of a positioning reference signal configuration method for an NR system according to some embodiments of the present disclosure.
  • FIG. 2 is a second schematic flowchart of a positioning reference signal configuration method of an NR system according to some embodiments of the present disclosure.
  • FIG. 3 is a third schematic flowchart of a positioning reference signal configuration method of an NR system according to some embodiments of the present disclosure.
  • FIG. 4 is a schematic diagram of a PRS resource mapping structure according to some embodiments of the present disclosure.
  • FIG. 5 is a schematic flowchart of a positioning reference signal receiving method of an NR system according to some embodiments of the present disclosure.
  • FIG. 6 is one of the structural schematic diagrams of a network device according to some embodiments of the present disclosure.
  • FIG. 7 is a second schematic structural diagram of a network device according to some embodiments of the present disclosure.
  • FIG. 8 is a third schematic structural diagram of a network device according to some embodiments of the present disclosure.
  • FIG. 9 is one of the structural diagrams of a terminal device according to some embodiments of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a network device according to some embodiments of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a terminal device according to some embodiments of the present disclosure.
  • FIG. 12 is a schematic flowchart of a positioning method according to some embodiments of the present disclosure.
  • FIG. 13 is a schematic diagram of a positioning method according to some embodiments of the present disclosure.
  • GSM Global System for Mobile
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • 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
  • UE User equipment
  • mobile terminal mobile terminal equipment
  • RAN Radio Access Network
  • the device can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal.
  • a mobile terminal such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal.
  • it can be a portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile device that connects wirelessly Network access to exchange language and / or data.
  • a network device is a device that is deployed in a radio access network to provide positioning reference signal configuration functions for an NR system for a terminal device.
  • the network device may be a base station, and the base station may be a base station in GSM or CDMA ( Base Transceiver Station (BTS), can also be a base station (NodeB) in WCDMA, or an evolutionary base station (eNodeB, eNB or e-NodeB) in LTE, and a 5G base station (gNB), or an Location server (E-SMLC, Evolved Serving, Mobile, Location Center) and 5G's location server (Location Management Function), and network-side equipment in subsequent evolution communication systems, however, the wording does not limit the scope of protection of this disclosure.
  • BTS Base Transceiver Station
  • NodeB base station
  • eNodeB evolved base station
  • gNB 5G base station
  • E-SMLC Evolved Serving, Mobile, Location Center
  • 5G's location server Location Management Function
  • the size of the sequence numbers of the processes does not mean the order of execution.
  • the execution order of each process should be determined by its function and internal logic, and should not deal with some embodiments of the present disclosure.
  • the implementation process constitutes any limitation.
  • the following only uses the NR system as an example to describe the positioning reference signal configuration, receiving method, and device provided by some embodiments of the present disclosure. It should be understood that the positioning reference signal configuration, receiving method, and The device can also be applied to other communication systems, and is not limited to the NR system.
  • FIG. 1 illustrates a positioning reference signal configuration method of an NR system according to the present disclosure, which is applied to a network device. As shown in FIG. 1, the method may include the following steps:
  • Step 101 Send first target configuration information, where the first target configuration information is used to configure a positioning reference signal PRS of a terminal device.
  • the positioning reference signal configuration method of the NR system provided by the embodiment shown in FIG. 1 can send the first target configuration information of the positioning reference signal PRS for configuring the terminal device, so that the terminal device in the NR system can obtain PRS, improve communication effectiveness.
  • the following describes the manner in which the first target configuration information is sent and the content included in the first target configuration information in combination with specific embodiments.
  • the network device selects multiple cells from cells within a predetermined distance from the terminal device; configures the first target configuration information for the terminal device through the multiple cells, and sends the first target configuration information. That is, the network device may select N cells from the cells near the terminal device, and configure the first target configuration information and the PRS for the terminal device in the N cells.
  • the network device may be an upper layer device of the cell.
  • the network device may be a network-side positioning server.
  • the predetermined distance can be configured according to actual needs, which is not limited in this embodiment.
  • the network device may, but is not limited to, select multiple cells from cells within a predetermined distance from the terminal device based on one or more of the following first to third modes.
  • the network device may select N reference signal receiving power (RSRP) or reference signal receiving quality (RSRQ) from a cell within a predetermined distance from the terminal device based on the cell's RRM.
  • the best cell for example, sorts cells within a predetermined distance from the terminal device based on RSRP or RSRQ, and selects the N cells ranked first for sending the first target configuration information.
  • the network device may select N cells with the best signal to interference plus noise ratio (SINR) from the cells within a predetermined distance from the terminal device based on the RRM of the cell, for example, to the terminal device
  • SINR signal to interference plus noise ratio
  • the second method is to select a plurality of cells from cells within a predetermined distance from the terminal device based on the estimation of the position of the terminal device in advance. For example, after making a rough judgment on the geographic location of the terminal device, multiple cells are selected from the cells that are favorable for the terminal device's positioning measurement.
  • multiple cells are selected from the cells within a predetermined distance from the terminal device. For example, from the cells within a predetermined distance from the terminal device, the N cells with the smallest variance of the TOA measurement error, the N cells with the smallest delay extension, or the N cells with the smallest TOA are selected as the plurality of cells. .
  • the subcarrier intervals of the multiple cells selected by the network device for configuring the PRS to the terminal device are the same (or the same numerology), and accordingly, the terminal device simultaneously receives the numerology corresponding to the PRS from the multiple cells.
  • the same, that is, the numerology corresponding to the PRS of multiple cells that the terminal device does not expect to receive simultaneously is different.
  • the selected multiple cells may be directly used as the cells where the terminal device is configured with PRS.
  • the multiple cells selected according to different methods and the number of multiple cells may be different.
  • multiple cells selected according to different methods may be selected.
  • a plurality of cells are selected again as the cells that finally configure the terminal device with PRS.
  • the multiple cells selected according to the first method are: Cell 1, Cell 2, Cell 3, Cell 4, and Cell 5
  • the multiple cells selected according to the second method are: Cell 2, Cell 3,
  • cell 5, and cell 6 the same multiple cells selected according to the first method and the second method can be used as the cell for which the terminal device is finally configured with PRS, that is, cell 2, cell 3, and cell.
  • Cell 5 is the cell that finally configures PRS for the terminal device.
  • the first target configuration information includes a PRS generation parameter.
  • a positioning reference signal configuration method for an NR system provided by some embodiments of the present disclosure may further include: generating based on the generation parameter. The PRS, and send the PRS.
  • the above-mentioned generation parameters are associated with at least one of the following parameters: the slot number in the radio frame where the PRS is located, and orthogonal frequency division multiplexing (OFDM) within the time slot where the PRS is located.
  • CP includes Normal Cyclic Prefix (NCP) and Extended Cyclic Prefix (ECP).
  • NCP Normal Cyclic Prefix
  • ECP Extended Cyclic Prefix
  • the cell ID information may be a physical cell ID or a virtual cell ID.
  • the PRS sequence may be generated by performing quadrature phase shift keying (QPSK) modulation on a pseudo-random sequence, where the pseudo-random sequence c (n) may be a gold sequence, and accordingly,
  • QPSK quadrature phase shift keying
  • the above generation parameters may also be referred to as generation parameters of a gold sequence.
  • the expression of c (n) is:
  • the initialization state of x 2 can be expressed by the binary form of a decimal number C init , C init can also be understood as the initial value of the sequence generated by the pseudo-random sequence c (n).
  • N c 1600, the meaning of Nc can be understood as: after generating two very long sequences according to the expressions of x 1 and x 2 , starting from the 1600th bit of these two very long sequences, respectively reading backward M To obtain two m sequences of M bits, and then perform modulo 2 addition on these two m sequences to obtain c (n).
  • the initial value C init of the pseudo-random sequence c (n) can be expressed as:
  • n sf represents a slot number in a radio frame
  • l represents an OFDM symbol number in a slot
  • N CP is related to the CP type.
  • N CP is equal to 1
  • N CP is equal to 0.
  • ⁇ indicates the value of the numerical configuration numerology. (The description of numerology will be described below through the list. For details, see below); Indicates the SSB number in an SSB Burst Set. The value ranges from 0 to 63.
  • the PRS sequence obtained by performing QPSK modulation on the gold sequence is:
  • the first target configuration information may include time domain position information and frequency domain position information of the resource particle RE occupied by the PRS, the frequency domain position is associated with a specified numerology of the network device, and the The frequency-domain position information includes starting point information of the frequency-domain position.
  • the starting point information is a first subcarrier on a first common resource block of the network device.
  • sending the PRS may specifically include: sending the PRS at the time domain location and the frequency domain location associated with the designated numerology.
  • a network device may map a PRS to a resource particle (Resource Element, RE) at a time-frequency position (k, l), where k represents a frequency domain in the numerology
  • RE resource Element
  • L indicates the OFDM symbol sequence number in a time slot.
  • the reference point A may be that during the OFDM baseband signal generation process, it is necessary to ensure that the subcarriers 0 in all Common RBs transmitted at different subcarrier spacing (SCS) on the same carrier are aligned, that is, under the same carrier. The boundaries of all Common RBs need to be aligned.
  • SCS subcarrier spacing
  • the cell A and the cell B are cells selected by the network device to send the first target configuration information and the PRS to the terminal device, that is, the cell A and the cell B are assumed to be positioning cells of the terminal device.
  • the network device configures PRS with numerology as ⁇ , and uses (k, l) to indicate the RE time-frequency position occupied by PRS, where l indicates the OFDM symbol sequence number in the time slot, and k indicates the frequency domain when numerology is ⁇ .
  • the network device configures PRS with numerology as ⁇ , and uses (k1, l1) to indicate the RE time-frequency position occupied by PRS, where l1 indicates the OFDM symbol sequence number in the time slot, and k1 indicates the frequency domain position when numerology is ⁇ .
  • the starting point of the frequency domain position of the PRS is the subcarrier 0 of the common resource block 0 of the cell B, that is, the point A of the cell B.
  • k1 0.
  • the following describes the numerology in the NR system in combination with the list.
  • the NR system supports multiple sets of basic parameter design, such as the subcarrier spacing ( ⁇ f) of 15, 30, 60, 120, and 240kHz to support the spectrum from 100MHz to tens of GHz.
  • ⁇ f subcarrier spacing
  • NR can support multiple numerology related to subcarrier spacing. Specifically, it is represented by Table 1:
  • ⁇ ⁇ f 2 ⁇ ⁇ 15 [kHz] CP 0 15 normal 1 30 normal 2 60 Normal, extended 3 120 normal 4 240 normal
  • Tables 2 and 3 the slot configuration based on different numerology in the NR system is shown in Tables 2 and 3, where Table 2 corresponds to the normal cyclic prefix and Table 3 corresponds to the extended cyclic prefix.
  • a positioning reference signal configuration method for an NR system may further include:
  • Step 102 Send second target configuration information, where the second target configuration information includes a synchronization signal block SSB or a channel state information reference signal (Channel State Information) that has a Quasi Co-location (QCL) relationship with the PRS.
  • Information-Reference Signals CSI-RS
  • the second target configuration information may further include other signals having a quasi co-location (QCL) relationship with the PRS, which is not limited in some embodiments of the present disclosure.
  • QCL quasi co-location
  • the SSB or CSI-RS having the QCL relationship with the PRS is used to provide the first target configuration information to the terminal device, and the first target configuration information provided includes: time information and beam information of the PRS At least one of them.
  • the time information may include an average delay and / or an extended delay.
  • QCL can include the following types:
  • QCL Type A (QCL-TypeA): ⁇ Doppler frequency shift, Doppler spread, average delay, delay spread ⁇
  • QCL Type B (QCL-TypeB): ⁇ Doppler frequency shift, Doppler extension ⁇
  • QCL Type C (QCL-TypeC): ⁇ average delay, Doppler shift ⁇
  • QCL type D QCL-TypeD: ⁇ spatial Rx parameter ⁇ .
  • providing the terminal device with the time information and beam information of the PRS through a signal having a QCL relationship with the PRS can be used to implement the assisted positioning of the terminal device.
  • the terminal device can obtain positioning information such as the angle of arrival (AOA) of the transmitted beam through the beam information provided by the SSB or CSI-RS, and is used to assist positioning.
  • AOA angle of arrival
  • the SRS ID information associated with the PRS may be added to the initial value (C init ) of the PRS pseudo-random sequence.
  • the terminal device can obtain the associated SSB ID by detecting the PRS sequence. Knowing the SSB ID, you can know which one of the beams to send the PRS, so as to obtain the AOA and other information of the sending beam, which is used to assist positioning.
  • the first target configuration information may further include at least one of the following information: cell ID information of the PRS, positioning performance index information of the terminal device, and a time when the network device configures the PRS. Slot configuration information, sub-carrier interval information for the network device configuring the PRS, bandwidth information configured by the network device for the terminal device, cyclic prefix CP information for the PRS, and network device configuration for the PRS Port information, and power gain information of the PRS.
  • the cell ID information may be a physical cell identifier or a virtual cell identifier of a cell in which the PRS is located.
  • the positioning performance index information of the terminal device may include target positioning accuracy and target delay information.
  • the positioning performance index information is the positioning performance index required in the scenario where the terminal device is located. Generally, these performance indexes are related to the PRS resource mapping pattern. If the current scenario requires high positioning accuracy, the PRS resource mapping pattern with good positioning performance is used; if the current scenario requires low positioning accuracy, the PRS resource mapping pattern with normal positioning performance is used; if the current scenario requires high positioning delay, Then, a PRS resource mapping pattern with a small delay is used; if the current scenario does not require high positioning delays, a PRS resource mapping pattern with a small delay is not used.
  • the slot configuration information of the PRS allocated by the network equipment includes information on the number of consecutive downlink slots occupied by a positioning burst, PRS cycle information, and slot offset of the PRS signal.
  • the positioning reference signal may be transmitted in N PRS consecutive downlink time slots, and the first time slot satisfies the following formula:
  • n f is the radio frame number
  • n s is the time slot number in a radio frame
  • ⁇ PRS is the slot offset of the PRS signal
  • T PRS is the PRS signal Send cycle.
  • the network device configures the PRS subcarrier interval information, and the network device can configure the PRS subcarrier interval width information for the terminal device.
  • the cyclic prefix CP information of the PRS contains normal CP or extended CP information, where the extended CP is used in a measurement cell that is far from the terminal device.
  • a network device needs to configure a PRS to be sent through a cell, only a conventional CP or an extended CP is configured. Generally, a conventional CP and an extended CP are not configured at the same time.
  • the network device configures (or sends) the port information of the PRS, and can send the PRS logical port information for the cell, including the port number and port index information.
  • the PRS power gain (power boosting) information can be a power boost parameter configured by the network device for each PRS RE.
  • the power gain information is related to at least one of the number of cells participating in the positioning, the number of PRS ports, and the PRS resource mapping pattern information.
  • the first target configuration information may be configured based on a partial bandwidth BWP; or, the first target configuration information may be configured based on a cell.
  • BWP-based configuration means that all configurations of PRS are configured under BWP. Different BWPs have different PRS configurations.
  • Cell-based configuration means that all configurations of PRS are configured under the cell, and different cells have different PRS configurations.
  • the configuration based on BWP is similar to the configuration of CSI-RS and Demodulation Reference Signal (DMRS) in NR-15, that is, PRS is configured under BWP; cell-based configuration, that is, PRS can be configured at the cell level .
  • DMRS Demodulation Reference Signal
  • the first target configuration information may further include resource multiplexing information of the PRS and a second preset signal.
  • the second preset signal may include, but is not limited to, a synchronization signal block SSB, a channel state information reference signal CSI-RS, a physical downlink control channel (PDCCH), and a physical downlink shared channel (Physical Downlink Shared Channel). At least one of PDSCH), Tracking Reference Signals (TRS), Phase Tracking Reference Signals (PTRS), and Demodulation Reference Signal DMRS.
  • the PRS is configured to be multiplexed or not multiplexed with other signals or channels (such as SSB, CSI-RS, TRS, DMRS, PTRS, PDCCH, or PDSCH, etc.), that is, whether the PRS should avoid collision with other reference signals or channels. Whether to use frequency division multiplexing or time division multiplexing with other reference signals or channels.
  • other signals or channels such as SSB, CSI-RS, TRS, DMRS, PTRS, PDCCH, or PDSCH, etc.
  • the network device may configure multiplexing information about the PDSCH for the PRS.
  • the network device is configured not to transmit the PDSCH in the time slot for transmitting the PRS, that is, the PRS and the PDSCH do not reuse resources.
  • PRS and PDSCH have QCL association
  • the network device does not send PDSCH in this time slot, that is, PRS and PDSCH do not reuse resources. If there is no QCL association between PRS and PDSCH, the terminal device only receives PRS or only PDSCH in this time slot.
  • the first target configuration information or the second target configuration information described in any one of the foregoing embodiments may be sent in at least one of the following ways: sending the first target configuration information based on high-level signaling, such as Radio Resource Control (RRC); sending the first target configuration information based on MAC layer signaling; or sending the first target configuration information based on Downlink Control Information (DCI); or based on UE and Positioning protocol LPP (LTE Positioning Protocol) between location servers.
  • RRC Radio Resource Control
  • DCI Downlink Control Information
  • LPP LTE Positioning Protocol
  • some first target configuration information can also be fixed by the protocol, such as PRS bandwidth.
  • the network device may not send it to the terminal device, but the terminal device itself can obtain it through the query protocol. To save transmission resources of network equipment.
  • the positioning reference signal configuration method of the NR system may further include the following steps:
  • Step 104 Send one or more PRS resource sets, where the PRS resource set includes at least one PRS resource mapped on at least one resource particle.
  • a network device may configure one PRS resource set in one time slot.
  • the PRS resource set may include multiple periodic PRS resources, and multiple PRS resources in one time slot have the same period, bandwidth, and frequency domain. Density, specific time and frequency domain positions of PRS resources can be flexibly configured by higher layers.
  • FIG. 4 is a schematic diagram of a PRS resource mapping structure according to some embodiments of the present disclosure
  • a network device can configure 1 PRS resource in one time slot (including 0 to 13 OFDM symbols in total) Set, a PRS resource set contains 8 periodic PRS resources.
  • the PRSs referenced by reference numerals 41 and 42 mapped on two resource particles in different frequency domain positions in the same OFDM symbol are A PRS resource.
  • the positioning reference signal configuration method of the NR system may further include the following steps:
  • Step 103 Send third target configuration information, where the third target configuration information is used to configure a PRS in the PRS resource set.
  • the third target configuration information includes, but is not limited to, one or more of the following information:
  • the resource configuration identifier corresponding to the PRS in the PRS resource set may also be referred to as a PRS resource ID.
  • Period information and time slot information of the PRS in the PRS resource set such as a time slot offset.
  • mapping information of the PRS in the PRS resource set and resources of the network device may include sending port information of the PRS resource, OFDM symbol and subcarrier occupation positions, frequency domain density, and bandwidth information, etc .
  • the frequency domain density can refer to the PRS frequency domain density of each physical resource block (Physical Resource Block, PRB) on each PRS sending port.
  • the PRS can be distributed at equal intervals in the frequency domain.
  • the bandwidth information can include the PRS loan and frequency. Domain initial PRB index information.
  • the PRS power control information in the PRS resource set may include the ratio of the energy of each resource particle (EPRE) of the PRS to the SSB EPRE, and the ratio of the PRS EPRE to the PDSCH EPRE.
  • EPRE resource particle
  • Generation parameters for generating the PRS in the PRS resource set for example, scrambling code ID information for determining an initial value in the PRS pseudo-random sequence, and the scrambling code ID information may be configured by a network device.
  • the QCL information of the PRS in the PRS resource set includes PRS transmission configuration indicator (TCI) status information, and the status information is used to indicate a QCL source reference signal of the PRS.
  • TCI PRS transmission configuration indicator
  • the third target configuration information may also be sent in at least one of the following ways: sending the third target configuration information (for example, RRC) based on high-level signaling. Sending the third target configuration information based on MAC layer signaling, or sending the third target configuration information based on downlink control information DCI, or sending the third target configuration information based on a positioning protocol LPP (LTE Positioning Protocol) between the UE and a location server Third target configuration information.
  • LPP LTE Positioning Protocol
  • part of the third target configuration information can also be fixed by the protocol, such as PRS bandwidth.
  • the network device may not send it to the terminal device, but the terminal device itself can obtain it through the query protocol To save transmission resources of network equipment.
  • a positioning reference signal configuration method for an NR system provided by some embodiments of the present disclosure, since the first target configuration information of the positioning reference signal PRS for configuring the terminal device can be transmitted, so that the terminal device in the NR system can be Get PRS to improve communication effectiveness.
  • the foregoing describes a positioning reference signal configuration method corresponding to an NR system for a network device, and a positioning reference signal receiving method for an NR system applied to a terminal device according to some embodiments of the present disclosure is described below with reference to FIG. 5.
  • a positioning reference signal receiving method of an NR system may include the following steps:
  • Step 501 Receive first target configuration information, where the first target configuration information is used to configure a positioning reference signal PRS of the terminal device.
  • the method for receiving a positioning reference signal of an NR system provided by the embodiment shown in FIG. 5 can obtain PRS because it can receive first target configuration information for configuring a positioning reference signal PRS of a terminal device.
  • the following describes the manner in which the first target configuration information is received and the content included in the first target configuration information in combination with specific embodiments.
  • the first target configuration information is configured by the network device for the terminal device through one of a plurality of cells, and the plurality of cells are configured by the network device from a cell within a predetermined distance from the terminal device.
  • Choose OK the network device for the terminal device through one of a plurality of cells, and the plurality of cells are configured by the network device from a cell within a predetermined distance from the terminal device.
  • the network device may select multiple cells from cells within a predetermined distance from the terminal device based on one or more of the following modes:
  • a plurality of cells are selected from the cells within a predetermined distance from the terminal device.
  • the first target configuration information includes generation parameters of the PRS
  • the method further includes: receiving the PRS, where the PRS is based on generation Parameter generated.
  • the generating parameter is associated with at least one of the following parameters:
  • the cell ID information of the PRS is the cell ID information of the PRS.
  • the ID of the terminal device or the ID of a user group to which the terminal device belongs is not limited.
  • the first target configuration information may include time domain position information and frequency domain position information of the resource particle RE occupied by the PRS, and the frequency domain position is associated with a specified numerology of the network device, and
  • the frequency domain position information includes starting point information of the frequency domain position.
  • the starting point information is a first subcarrier on a first common resource block of the network device.
  • the terminal device may receive the PRS at the time domain location and the frequency domain location associated with the designated numerology.
  • a positioning reference signal receiving method of the NR system provided by the present disclosure may further include: receiving second target configuration information, where the second target configuration information includes a quasi co-site QCL relationship with the PRS. Synchronization signal block SSB or channel state information reference signal CSI-RS.
  • the SSB or the CSI-RS is used to provide the terminal device with the first target configuration information, and the provided first target configuration information includes: time information and beam information of the PRS. At least one.
  • the first target configuration information further includes at least one of the following information: cell ID information of the PRS, positioning performance index information of the terminal device, and a time slot in which the network device configures the PRS Configuration information, subcarrier interval information for the network device configuring the PRS, bandwidth information configured by the network device for the terminal device, cyclic prefix CP information of the PRS, and a port for the network device configuring the PRS Information, and power gain information of the PRS.
  • the first target configuration information is configured based on a partial bandwidth BWP; or the first target configuration information is configured based on a cell.
  • the first target configuration information further includes resource multiplexing information of the PRS and a second preset signal.
  • the second preset signal includes a synchronization signal block SSB, a channel state information reference signal CSI-RS, a physical downlink control channel PDCCH and a physical downlink shared channel PDSCH, a tracking reference signal TRS, a phase tracking reference signal PTRS, and a demodulation reference. At least one of the signals DMRS.
  • the terminal device may receive the first target configuration information or the second target configuration information based on at least one of the following modes: receiving the first target configuration information based on high-level signaling, and based on MAC layer signaling Receiving the first target configuration information, or receiving the first target configuration information based on downlink control information DCI.
  • the terminal device can be obtained by querying the protocol without receiving from the network device, so as to save the transmission resources of the network device.
  • the positioning reference signal receiving method of the NR system shown in FIG. 5 may further include: receiving one or more PRS resource sets, where the PRS resource set includes at least one PRS resource mapped on at least one resource particle.
  • the positioning reference signal receiving method of the NR system shown in FIG. 5 may further include: receiving third target configuration information, where the third target configuration information is used to configure all Describe the PRS in the PRS resource set.
  • the third target configuration information includes one or more of the following information: a resource configuration identifier corresponding to a PRS in the PRS resource set, period information and time slot information of the PRS in the PRS resource set, the Mapping information of a PRS in a PRS resource set and resources of the network device, PRS power control information in the PRS resource set, generation parameters for generating a PRS in the PRS resource set, and a part of the PRS in the PRS resource set Bandwidth BWP information, and QCL information of PRSs in the PRS resource set.
  • the terminal device may receive the third target configuration information based on at least one of the following modes: receiving the third target configuration based on high-level signaling Information (such as RRC), receiving the third target configuration information based on MAC layer signaling, or receiving the third target configuration information based on downlink control information DCI, or based on a positioning protocol LPP (LTE Positioning Protocol) between the UE and the location server Protocol) receiving the third target configuration information.
  • high-level signaling Information such as RRC
  • MAC layer signaling such as MAC layer signaling
  • DCI downlink control information
  • LPP LTE Positioning Protocol
  • the terminal device can obtain it by querying the protocol without receiving it from the network device, so as to save the transmission resources of the network device.
  • a positioning reference signal receiving method of an NR system provided by some embodiments of the present disclosure corresponds to a positioning reference signal configuration method of an NR system provided by some embodiments of the present disclosure, therefore, The description of the positioning reference signal receiving method is relatively simple. For related points, please refer to the description of the positioning reference signal configuration method of the NR system above.
  • the terminal device may further perform positioning based on the PRS.
  • the following uses the PRS in Observed Time Difference of Arrival (OTDOA) positioning as an example to briefly explain the process of positioning a terminal device based on PRS.
  • OTDOA Observed Time Difference of Arrival
  • the OTDOA positioning method based on PRS positioning may include the following steps:
  • Step 1201 The network device generates a PRS based on the method described above, wherein the network device includes a serving cell of the terminal device and a plurality of neighboring cells selected from near the terminal device.
  • Step 1202 the network device sends a PRS to the terminal device.
  • Step 1203 The terminal device performs time-domain correlation between the PRS from the neighboring cell and the PRS from the serving cell to obtain a delay power spectrum corresponding to each neighboring cell.
  • the PRS from the serving cell can also be called the local PRS of the terminal device.
  • Step 1204 The terminal device searches for the first reach of the neighboring cell according to the delay power spectrum corresponding to the neighboring cell, and obtains the TOA of the PRS sent by each neighboring cell to the terminal device.
  • Step 1205 The terminal device separately determines a reference signal time difference (RSTD) between the serving cell and each neighboring cell.
  • RSTD reference signal time difference
  • Step 1206 The terminal device determines the location of the terminal device based on the RSTDs corresponding to at least three neighboring cells.
  • the coordinates of the terminal device can be calculated.
  • the terminal device does not obtain the accurate PRS arrival time (TOA), and the position of the terminal device is determined by the arrival time difference (TDOA) of at least three neighboring cells, that is, the relative time instead of the absolute time.
  • TOA the accurate PRS arrival time
  • TDOA arrival time difference
  • Figure 13 shows the OTDOA positioning principle diagram. It can be seen from Figure 13 that three neighboring cell base stations (first neighboring cell base station 131, second neighboring cell base station 132, and third neighboring cell base station 133) participating in positioning can connect the terminal
  • the devices are limited to a very small area 134, and the distances from the first neighboring cell base station 131, the second neighboring cell base station 132, and the third neighboring cell base station 133 to the terminal devices are d1, d2, and d3, respectively.
  • the position of the terminal device is at the intersection of the first curve 135 and the second curve 136.
  • the position of the first curve 135 may be Between the first dotted line 1351 and the second dotted line 1352, the position of the second curve 136 may be between the third dotted line 1361 and the fourth dotted line 1362. Therefore, the positions of the terminal devices determined by the three neighboring cell base stations are in the area. Within 134. Adding another neighboring cell base station can limit the terminal equipment to another area, and taking the overlapped part can reduce the location range of the terminal equipment. It is not difficult to understand that the more neighboring cell base stations participating in positioning, the higher the positioning accuracy.
  • the network device and the terminal device according to some embodiments of the present disclosure will be described in detail below with reference to FIGS. 6 to 9.
  • FIG. 6 is a schematic structural diagram of a network device according to some embodiments of the present disclosure. As shown in FIG. 6, the network device 600 includes a first sending module 601.
  • the network device 600 provided by some embodiments of the present disclosure can send the first target configuration information of the positioning reference signal PRS for configuring the terminal device, the terminal device in the NR system can obtain the PRS and improve the communication efficiency.
  • the network device 600 is described below with reference to specific embodiments.
  • the first sending module 601 may be specifically configured to:
  • the first sending module 601 selects multiple cells from cells within a predetermined distance from the terminal device based on one or more of the following methods:
  • a plurality of cells are selected from the cells within a predetermined distance from the terminal device.
  • the first target configuration information includes a parameter for generating the PRS
  • the apparatus 600 may further include:
  • a second sending module is configured to generate the PRS based on the generation parameters after sending the first target configuration information, and send the PRS.
  • the generating parameter is associated with at least one of the following parameters:
  • the cell ID information of the PRS is the cell ID information of the PRS.
  • the ID of the terminal device or the ID of a user group to which the terminal device belongs is not limited.
  • the first target configuration information includes time domain position information and frequency domain position information of the resource particle RE occupied by the PRS, and the frequency domain position is associated with a specified numerology of the network device, and
  • the frequency domain position information includes starting point information of the frequency domain position.
  • the starting point information is a first subcarrier on a first common resource block of the network device.
  • the second sending module is configured to send the PRS at the time domain location and the frequency domain location associated with the designated numerology.
  • the network device 600 may further include: a third sending module 602, configured to send second target configuration information, where the second target configuration information includes a quasi co-site QCL with the PRS The associated synchronization signal block SSB or channel state information reference signal CSI-RS.
  • a third sending module 602 configured to send second target configuration information, where the second target configuration information includes a quasi co-site QCL with the PRS The associated synchronization signal block SSB or channel state information reference signal CSI-RS.
  • the SSB or the CSI-RS is used to provide the terminal device with the first target configuration information, and the provided first target configuration information includes: time information and beam information of the PRS. At least one.
  • the first target configuration information further includes at least one of the following information:
  • Bandwidth information configured by the network device to the terminal device
  • the network device configures the port information of the PRS.
  • the first target configuration information is configured based on a partial bandwidth BWP; or the first target configuration information is configured based on a cell.
  • the first target configuration information further includes resource multiplexing information of the PRS and a second preset signal.
  • the second preset signal includes a synchronization signal block SSB, a channel state information reference signal CSI-RS, a physical downlink control channel PDCCH, a physical downlink shared channel PDSCH, a tracking reference signal TRS, a phase tracking reference signal PTRS, and demodulation. At least one of the reference signals DMRS.
  • the first sending module sends the first target configuration information based on at least one of the following modes: sending the first target configuration information based on high-level signaling, and sending the first target based on MAC layer signaling Sending the first target configuration information based on the target configuration information or DCI based on the downlink control information.
  • the network device 600 may further include a fourth sending module 603 configured to send one or more PRS resource sets, where the PRS resource set includes at least one mapped on at least one resource particle PRS resources.
  • the network device 600 may further include: a fifth sending module 604, configured to send third target configuration information before the sending one or more PRS resource sets, where the third target configuration information is used for configuration A PRS in the PRS resource set.
  • a fifth sending module 604 configured to send third target configuration information before the sending one or more PRS resource sets, where the third target configuration information is used for configuration A PRS in the PRS resource set.
  • the third target configuration information includes one or more of the following information:
  • Periodic information and time slot information of a PRS in the PRS resource set
  • the fifth sending module 604 may use the fifth sending module to send the third target configuration information based on at least one of the following modes: sending the third target configuration information based on high-level signaling, and based on MAC layer information. It is instructed to send the third target configuration information, send the third target configuration information based on downlink control information DCI, or send the third target configuration information based on a positioning protocol (LPP) between a user equipment (UE) and a location server.
  • LPP positioning protocol
  • the above network devices shown in FIG. 6 to FIG. 8 may be used to implement the embodiments of the positioning reference signal configuration method of the NR system shown in FIG. 1 to FIG.
  • the terminal device 900 may include: a first receiving module 901, configured to receive first target configuration information, where the first target configuration information is used for And configuring a positioning reference signal PRS of the terminal device.
  • the terminal device 900 provided in the embodiment shown in FIG. 9 can receive the first target configuration information of the positioning reference signal PRS for configuring the terminal device, the PRS can be obtained.
  • the following describes the manner in which the first target configuration information is received and the content included in the first target configuration information in combination with specific embodiments.
  • the first target configuration information is configured by the network device for the terminal device through one of a plurality of cells, and the plurality of cells are configured by the network device from a cell within a predetermined distance from the terminal device.
  • Choose OK the network device for the terminal device through one of a plurality of cells, and the plurality of cells are configured by the network device from a cell within a predetermined distance from the terminal device.
  • the first receiving module 901 may select multiple cells from cells within a predetermined distance from the terminal device based on one or more of the following modes:
  • a plurality of cells are selected from the cells within a predetermined distance from the terminal device.
  • the first target configuration information includes generation parameters of the PRS
  • the terminal device 900 may further include:
  • a second receiving module is configured to receive the PRS after the receiving the first target configuration information, where the PRS is generated based on a generation parameter.
  • the generating parameter is associated with at least one of the following parameters:
  • the cell ID information of the PRS is the cell ID information of the PRS.
  • the ID of the terminal device or the ID of a user group to which the terminal device belongs is not limited.
  • the first target configuration information includes time domain position information and frequency domain position information of the resource particle RE occupied by the PRS, and the frequency domain position is associated with a specified numerology of the network device, and
  • the frequency domain position information includes starting point information of the frequency domain position.
  • the starting point information is a first subcarrier on a first common resource block of the network device.
  • the second receiving module receives the PRS at the time domain location and the frequency domain location associated with the designated numerology.
  • the terminal device 900 may further include: a third receiving module, configured to receive second target configuration information, where the second target configuration information includes a synchronization signal block having a quasi co-site QCL relationship with the PRS SSB or channel state information reference signal CSI-RS.
  • a third receiving module configured to receive second target configuration information, where the second target configuration information includes a synchronization signal block having a quasi co-site QCL relationship with the PRS SSB or channel state information reference signal CSI-RS.
  • the SSB or the CSI-RS is used to provide the terminal device with the first target configuration information, and the provided first target configuration information includes: time information and beam information of the PRS. At least one.
  • the first target configuration information further includes at least one of the following information:
  • Bandwidth information configured by the network device to the terminal device
  • the network device configures the port information of the PRS.
  • the first target configuration information is configured based on a partial bandwidth BWP; or the first target configuration information is configured based on a cell.
  • the first target configuration information further includes resource multiplexing information of the PRS and a second preset signal.
  • the second preset signal includes a synchronization signal block SSB, a channel state information reference signal CSI-RS, a physical downlink control channel PDCCH and a physical downlink shared channel PDSCH, a tracking reference signal TRS, a phase tracking reference signal PTRS, and a demodulation reference. At least one of the signals DMRS.
  • the first receiving module receives the first target configuration information based on at least one of the following modes: receiving the first target configuration information based on high-level signaling, and receiving the first target based on MAC layer signaling Receiving the first target configuration information based on the target configuration information or based on the downlink control information DCI.
  • the terminal device 900 may further include a fourth receiving module configured to receive one or more PRS resource sets, where the PRS resource sets include at least one PRS resource mapped on at least one resource particle.
  • the terminal device 900 may further include: a fifth receiving module, configured to receive third target configuration information before the receiving one or more PRS resource sets, where the third target configuration information is used to configure the The PRS in the PRS resource set.
  • a fifth receiving module configured to receive third target configuration information before the receiving one or more PRS resource sets, where the third target configuration information is used to configure the The PRS in the PRS resource set.
  • the third target configuration information includes one or more of the following information:
  • Periodic information and time slot information of a PRS in the PRS resource set
  • the fifth receiving module receives the third target configuration information based on at least one of the following modes: receiving the third target configuration information (such as RRC) based on high-level signaling, and receiving based on MAC layer signaling Receiving the third target configuration information based on the downlink control information DCI, or receiving the third target configuration information based on a positioning protocol LPP (LTE Positioning Protocol) between the UE and a location server.
  • the third target configuration information such as RRC
  • LPP LTE Positioning Protocol
  • FIG. 10 is a structural diagram of a network device applied by some embodiments of the present disclosure, which can implement the details of the positioning reference signal configuration method of the NR system described above and achieve the same effect.
  • the network device 1000 includes: a processor 1001, a transceiver 1002, a memory 1003, a user interface 1004, and a bus interface, where:
  • the network device 1000 further includes: a computer program stored in the memory 1003 and executable on the processor 1001, and the computer program is executed by the processor 1001 to implement the positioning reference signal configuration of the NR system described above
  • a computer program stored in the memory 1003 and executable on the processor 1001
  • the computer program is executed by the processor 1001 to implement the positioning reference signal configuration of the NR system described above
  • the bus architecture may include any number of interconnected buses and bridges, and at least one processor specifically represented by the processor 1001 and various circuits of the memory represented by the memory 1003 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, so they are not described further herein.
  • the bus interface provides an interface.
  • the transceiver 1002 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium.
  • the user interface 1004 may also be an interface capable of externally connecting internally required devices.
  • the connected devices include, but are not limited to, a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 1001 is responsible for managing the bus architecture and general processing, and the memory 1003 can store data used by the processor 1001 when performing operations.
  • FIG. 11 is a schematic structural diagram of a terminal device according to another embodiment of the present disclosure.
  • the terminal device 1100 shown in FIG. 11 includes: at least one processor 1101, a memory 1102, at least one network interface 1104, and a user interface 1103.
  • the various components in the terminal device 1100 are coupled together by a bus system 1105.
  • the bus system 1105 is used to implement connection and communication between these components.
  • the bus system 1105 includes a power bus, a control bus, and a status signal bus in addition to the data bus. However, for the sake of clarity, various buses are marked as the bus system 1105 in FIG. 11.
  • the user interface 1103 may include a display, a keyboard, or a pointing device (for example, a mouse, a trackball, a touch panel, or a touch screen).
  • a pointing device for example, a mouse, a trackball, a touch panel, or a touch screen.
  • the memory 1102 in some embodiments of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), and an electronic memory. Erase programmable read-only memory (EPROM, EEPROM) or flash memory.
  • the volatile memory may be Random Access Memory (RAM), which is used as an external cache.
  • RAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM, DDRSDRAM enhanced synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM synchronous connection dynamic random access memory
  • SLDRAM direct memory bus random access memory
  • DRRAM direct memory bus random access memory
  • the memory 1102 stores the following elements, executable modules or data structures, or a subset of them, or their extended set: an operating system 11021 and an application program 11022.
  • the operating system 11021 includes various system programs, such as a framework layer, a core library layer, and a driver layer, etc., for implementing various basic services and processing hardware-based tasks.
  • the application program 11022 includes various application programs, such as a media player (Player), a browser (Browser), and the like, and is used to implement various application services.
  • a program that implements the methods of some embodiments of the present disclosure may be included in the application 11022.
  • the terminal device 1100 further includes: a computer program stored on the memory 1102 and executable on the processor 1101.
  • the computer program is executed by the processor 1101, the positioning reference signal configuration method of the foregoing NR system is implemented
  • Each process can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • the methods disclosed in some embodiments of the present disclosure described above may be applied to the processor 1101, or implemented by the processor 1101.
  • the processor 1101 may be an integrated circuit chip and has a signal processing capability. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1101 or an instruction in the form of software.
  • the above processor 1101 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA), or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA ready-made programmable gate array
  • Various methods, steps, and logic block diagrams disclosed in some embodiments of the present disclosure may be implemented or performed.
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in combination with some embodiments of the present disclosure may be directly implemented by a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a mature computer-readable storage medium such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, and the like in the art.
  • the computer-readable storage medium is located in the memory 1102, and the processor 1101 reads the information in the memory 1102 and completes the steps of the foregoing method in combination with its hardware.
  • a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor 1101, the steps of the positioning reference signal configuration method embodiment of the NR system described above are implemented.
  • the embodiments described in some embodiments of the present disclosure may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof.
  • the processing unit can be implemented in at least one application specific integrated circuit (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (Programmable Logic Device, PLD), Field-Programmable Gate Array (FPGA), general-purpose processor, controller, microcontroller, microprocessor, and other electronic units for performing the functions described in this disclosure Or a combination thereof.
  • ASIC application specific integrated circuit
  • DSP digital signal processor
  • DSPD digital signal processing device
  • PLD programmable logic device
  • FPGA Field-Programmable Gate Array
  • the technology described in some embodiments of the present disclosure can be implemented by modules (such as procedures, functions, etc.) that perform the functions described in some embodiments of the present disclosure.
  • Software codes may be stored in a memory and executed by a processor.
  • the memory may be implemented in the processor or external to the processor.
  • Some embodiments of the present disclosure also provide a computer-readable storage medium.
  • a computer program is stored on the computer-readable storage medium.
  • the processes of the positioning reference signal configuration method embodiment of the foregoing NR system are implemented. And can achieve the same technical effect, in order to avoid repetition, it will not be repeated here.
  • the computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.
  • Some embodiments of the present disclosure also provide a computer program product including instructions.
  • a computer runs the instructions of the computer program product, the computer executes the positioning reference signal configuration method of the NR system or the positioning of the NR system. How to receive the reference signal.
  • the computer program product can run on the network device.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or 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, which may be 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, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.
  • each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present disclosure is essentially a part that contributes to related technologies or a part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including several
  • the instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in various embodiments of the present disclosure.
  • the foregoing storage media include: U disks, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks or compact discs and other media that can store program codes .

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Abstract

本公开提供一种NR系统的定位参考信号配置、接收方法和设备，所述配置方法包括：发送第一目标配置信息，所述第一目标配置信息用于配置终端设备的定位参考信号PRS。

Description

NR系统的定位参考信号配置、接收方法和设备
相关申请的交叉引用
本申请主张在2018年6月22日在中国提交的中国专利申请号No.201810651385.6的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，更具体地涉及一种NR系统的定位参考信号配置、接收方法和设备。
背景技术
在长期演进(Long Term Evolution，LTE)系统中，定位参考信号(Positioning Reference Signal，PRS)在网络设备配置的用于定位参考信号传输的下行链路子帧中的资源块上传输，在天线端口(antenna port)6上发送。
并且，在LTE系统中，PRS不能映射到分配向物理广播信道(Physical Broadcast Channel，PBCH)、主同步信号(Primary Synchronization Signal，PSS)和辅同步信号(Secondary Synchronization Signal，SSS)的资源粒子(Resource Element，RE)上，以及PRS不能与任一天线端口上发送的小区特定参考信号(Cell-specific reference signals，CRS)重叠。
但是，在新无线(New Radio，NR)系统中，网络设备如何向用户设备(User Equipment,UE)配置定位参考信号还是未知的，导致NR系统中的UE无法获得PRS。本公开仅以NR系统为例，并不构成限制。
发明内容
本公开的一些实施例提供一种NR系统的定位参考信号配置、接收方法和设备，以解决NR系统中UE无法获得PRS的问题。
第一方面，提供了一种NR系统的定位参考信号配置方法，应用于网络设备，所述方法包括：
发送第一目标配置信息，所述第一目标配置信息用于配置终端设备的定位参考信号PRS。
第二方面，提供了一种NR系统的定位参考信号接收方法，应用于终端设备，所述方法包括：
接收第一目标配置信息，所述第一目标配置信息用于配置所述终端设备的定位参考信号PRS。
第三方面，提供了一种网络设备，该网络设备包括：
第一发送模块，用于发送第一目标配置信息，所述第一目标配置信息用于配置终端设备的定位参考信号PRS。
第四方面，提供了一种终端设备，该终端设备包括：
第一接收模块，用于接收第一目标配置信息，所述第一目标配置信息用于配置所述终端设备的定位参考信号PRS。
第五方面，提供了一种网络设备，该网络设备包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的无线通信程序，所述无线通信程序被所述处理器执行时所述处理器实现如第一方面所述的方法的步骤。
第六方面，提供了一种终端设备，该终端设备包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的无线通信程序，所述无线通信程序被所述处理器执行时所述处理器实现如第二方面所述的方法的步骤。
第七方面，提供了一种计算机可读介质，所述计算机可读介质上存储有无线通信程序，所述无线通信程序被处理器执行时所述处理器实现如第一方面或第二方面所述的方法的步骤。
在本公开的一些实施例中，由于能够发送用于配置终端设备的定位参考信号PRS的第一目标配置信息，因此可以使NR系统中的终端设备获得PRS，提高通信有效性。
附图说明
为了更清楚地说明本公开的一些实施例或相关技术中的技术方案，下面将对实施例或相关技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开中记载的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是根据本公开的一些实施例的NR系统的定位参考信号配置方法的示意性流程图之一。
图2是根据本公开的一些实施例的NR系统的定位参考信号配置方法的示意性流程图之二。
图3是根据本公开的一些实施例的NR系统的定位参考信号配置方法的示意性流程图之三。
图4是根据本公开的一些实施例的一种PRS资源映射结构示意图。
图5是根据本公开的一些实施例的NR系统的定位参考信号接收方法的示意性流程图。
图6是根据本公开的一些实施例的网络设备的结构示意图之一。
图7是根据本公开的一些实施例的网络设备的结构示意图之二。
图8是根据本公开的一些实施例的网络设备的结构示意图之三。
图9是根据本公开的一些实施例的终端设备的结构示意图之一。
图10是根据本公开的一些实施例的网络设备的结构示意图。
图11是根据本公开的一些实施例的终端设备的结构示意图。
图12是根据本公开的一些实施例的定位方法的流程示意图。
图13是根据本公开的一些实施例的定位方法的原理示意图。
具体实施方式
为了使本技术领域的人员更好地理解本公开中的技术方案，下面将结合本公开的一些实施例中的附图，对本公开的一些实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都应当属于本公开保护的范围。
应理解，本公开的一些实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)或全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统、5G系统，或者说新无线(New Radio,NR)系统。
用户设备(User Equipment，UE)，也可称之为移动终端(Mobile Terminal)、移动终端设备等，可以经无线接入网(例如，Radio Access Network，RAN)与至少一个核心网进行通信，终端设备可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。
网络设备是一种部署在无线接入网设中用于为终端设备提供NR系统的定位参考信号配置功能的装置，所述网络设备可以为基站，所述基站可以是GSM或CDMA中的基站(Base Transceiver Station，BTS)，也可以是WCDMA中的基站(NodeB)，还可以是LTE中的演进型基站(evolutional Node B，eNB或e-NodeB)及5G基站(gNB)，还可以LTE中的位置服务器(E-SMLC， Evolved Serving Mobile Location Center)及5G的位置服务器(Location Management Function),以及后续演进通信系统中的网络侧设备，然而用词并不构成对本公开保护范围的限制。
需要说明的是，在描述具体实施例时，各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本公开的一些实施例的实施过程构成任何限定。
需要说明的是，下文仅以NR系统为例说明本公开的一些实施例提供的定位参考信号配置、接收方法及装置，应理解，本公开的一些实施例提供的定位参考信号配置、接收方法及装置还可以应用于其他通信系统，并不局限于NR系统。
下面先结合附图1至4，对应用于网络设备的NR系统的定位参考信号配置方法进行说明。
图1示出了根据本公开的NR系统的定位参考信号配置方法，应用于网络设备。如图1所示，该方法可以包括如下步骤：
步骤101、发送第一目标配置信息，所述第一目标配置信息用于配置终端设备的定位参考信号PRS。
图1所示的实施例提供的一种NR系统的定位参考信号配置方法，由于能够发送用于配置终端设备的定位参考信号PRS的第一目标配置信息，因此可以使NR系统中的终端设备获得PRS，提高通信有效性。
下面结合具体的实施例对上述发送第一目标配置信息的方式，以及第一目标配置信息包含的内容进行说明。
可选地，网络设备从距终端设备预定距离内的小区中选择多个小区；通过所述多个小区为终端设备配置所述第一目标配置信息，并发送第一目标配置信息。也即网络设备可以从终端设备附近的小区中选取N个小区，在这N个小区中为终端设备配置第一目标配置信息及PRS。
其中，网络设备可以是小区的上层设备，例如，网络设备可以是一个网 络侧的定位服务器。预定距离可以根据实际需要配置，本实施例对此不作限定。
更为详细的，网络设备可以但不限于基于下列第一种至第三种方式中的一种或多种从距所述终端设备预定距离内的小区中选择多个小区。
第一种，基于距所述终端设备预定距离内的小区的无线资源管理RRM报告，从距所述终端设备预定距离内的小区中选择多个小区。
具体来说，网络设备可以基于小区的RRM，从距终端设备预定距离内的小区中选取N个参考信号接收功率(Reference Signal Receiving Power，RSRP)或参考信号接收质量(Reference Signal Receiving Quality，RSRQ)最好的小区，例如，对距终端设备预定距离内的小区基于RSRP或RSRQ进行排序，将排序在最前面的N个小区选择出来用于发送第一目标配置信息。或者，网络设备可以基于小区的RRM，从距终端设备预定距离内的小区中选取N个信号与干扰加噪声比(Signal to Interference plus Noise Ratio，SINR)最好的小区，例如，对距终端设备预定距离内的小区基于SINR进行排序，将排序在最前面的N个小区选择出来用于发送第一目标配置信息。
第二种，基于预先对所述终端设备的位置的估计，从距所述终端设备预定距离内的小区中选择多个小区。例如，对终端设备的地理位置进行粗略判断后，从利于终端设备定位测量的小区中选择多个小区。
第三种，基于距所述终端设备预定距离内的小区发送的PRS的到达时间(Time of Arrival，TOA)，从距所述终端设备预定距离内的小区中选择多个小区。例如，从距终端设备预定距离内的小区中，将TOA测量误差的方差最小的N个小区、将时延扩展最小的N个小区或者将TOA最小的N个小区选择出来作为所述多个小区。
并且，网络设备选择出的用于向终端设备配置PRS的多个小区的子载波间隔相同(或者说numerology相同)，相应的，终端设备同时接收到的来自所述多个小区的PRS对应的numerology相同，也即终端设备不期望同时接收 的多个小区的PRS对应的numerology不同。
以及，当基于上述三种方式中的任一种为终端设备选择多个小区时，可以直接将选择出的多个小区作为给终端设备配置PRS的小区。当基于上述三种方式中的多种为终端设备选择多个小区时，依据不同的方式选择出的多个小区及多个小区的数量可能不同，此时可以从依据不同方式选择出的多个小区中，再次筛选出多个小区，作为最终给终端设备配置PRS的小区。例如，假设依据第一种方式选择出的多个小区为：小区1、小区2、小区3、小区4、小区5，依据第二种方式选择出的多个小区为：小区2、小区3、小区4、小区5、小区6，则可以将依据第一种方式和依据第二种方式选择出的相同的多个小区作为最终给终端设备配置PRS的小区，也即将小区2、小区3、小区4、小区5作为最终给终端设备配置PRS的小区。
当然，除了将依据不同方式选择出的相同的多个小区作为最终给终端设备配置PRS的小区，还可以采用其他方式从依据不同方式选择出的多个小区中，再次筛选出多个小区，作为最终给终端设备配置PRS的小区，本公开对此不做限定。
可选地，第一目标配置信息包括PRS的生成参数，在上述步骤101之后，本公开的一些实施例提供的一种NR系统的定位参考信号配置方法，还可以包括：基于所述生成参数生成所述PRS，并发送所述PRS。
上述生成参数与下列参数中至少一项相关联：所述PRS所在无线帧内的时隙(slot)号、所述PRS所在时隙内的正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号的序号、所述PRS的循环前缀(Cyclic Prefix,CP)的类型、所述PRS的小区ID信息、所述终端设备的ID或所述终端设备所属用户组的ID，以及同步信号块(Synchronization Signal Block，SSB)的ID。
其中，CP包括正常循环前缀(Normal Cyclic Prefix，NCP)和扩展循环前缀(Extended Cyclic Prefix，ECP)。小区ID信息可以是物理小区ID或虚拟小区 ID。
更为具体的，PRS序列可以是对伪随机序列进行正交相移键控(Quadrature Phase Shift Keying,QPSK)调制后生成的，其中，伪随机序列c(n)可以是gold序列，相应的，上述生成参数也可以称为是gold序列的生成参数。
在一个例子中，如果伪随机序列c(n)为gold序列，则c(n)具体可以是2个m序列的异或结果(或者说2个m序列的模2加结果)，且c(n)的长度为可以M，其中，n＝0,1,…,M-1。c(n)的表达式为：
c(n)＝(x 1(n+N c)+x 2(n+N c))mod2
其中，x 1(n+31)＝(x 1(n+3)+x 1(n))mod2，用于生成第一个m序列，x 1的初始化状态为x 1(0)＝1，x 1(n)＝0，n＝1,2,…,30。
其中，x 2(n+31)＝(x 2(n+3)+x 2(n+2)+x 2(n+1)+x 2(n))mod2，用于生成第二个m序列，x 2的初始化状态可以通过一个十进制数C init的二进制形式表示，C init也可以理解为是伪随机序列c(n)生成序列的初始值。
符号“mod”为取余数符号，可以称为“模”。
N c＝1600，Nc的含义可以理解为：在根据x 1和x 2的表达式生成两个很长的序列后，从这两个很长的序列的第1600位开始分别向后读取M位得到M位的两个m序列，再对这两个m序列进行模2加，即可得到c(n)。
伪随机序列c(n)的初始值C init可以表示为：
Figure PCTCN2019091865-appb-000001
其中，n sf表示一个无线帧内的时隙序号；l表示一个时隙内的OFDM符号序号；
Figure PCTCN2019091865-appb-000002
表示物理小区ID、虚拟小区ID或网络配置的ID；N CP与CP类型有关，对于正常CP来说，N CP等于1，对于扩展CP来说，N CP等于0；μ表示数值配置numerology的值(下文会通过列表对numerology进行说明，此处暂不说明详见下文)；
Figure PCTCN2019091865-appb-000003
表示一个SSB Burst Set中的SSB编号，取值为0至63。
在此基础上，对gold序列进行QPSK调制后得到的PRS序列为：
Figure PCTCN2019091865-appb-000004
可选地，第一目标配置信息可以包括：所述PRS占用的资源粒子RE的时域位置信息和频域位置信息，所述频域位置与所述网络设备的指定numerology相关联，且所述频域位置信息包括所述频域位置的起始点信息。其中，所述起始点信息为所述网络设备的第一个公共资源块上的第一个子载波。
相应的，上述步骤“发送所述PRS”具体可以包括：在所述时域位置和与所述指定numerology相关联的所述频域位置上发送所述PRS。
具体来说，在某个指定的numerology下，网络设备可以将PRS映射在时频位置为(k,l)的资源粒子(Resource Element，RE)上发送，其中，k表示该numerology下的频域位置，同上一个例子中类似，l表示一个时隙内的OFDM符号序号，PRS的频域位置的起始点为发送该PRS的小区的公共资源块0上的子载波0，即该小区的point A(参考点A)，并且，对应的k＝0。
其中参考点A，可以是OFDM基带信号生成过程中，需要保证在同一载波上以不同子载波间隔((subcarrier spacing，SCS)所传输的所有Common RB中的子载波0对齐，即同一载波下的所有Common RB的边界需要对齐。
例如，假设小区A和小区B是网络设备选取的用于向终端设备发送第一目标配置信息和PRS的小区，也即假设小区A和小区B是终端设备的定位小区。
则，在小区A，网络设备配置numerology为μ的PRS，使用(k,l)表示PRS占用的RE时频位置，其中l表示时隙内的OFDM符号序号，k表示numerology为μ时的频域位置，该PRS的频域位置的起始点为小区A公共资源块0的子载波0，即该小区A的point A，对应的，k＝0。
在小区B，网络设备配置numerology为μ的PRS，使用(k1,l1)表示PRS 占用的RE时频位置，其中l1表示时隙内的OFDM符号序号，k1表示numerology为μ时的频域位置，该PRS的频域位置的起始点为小区B公共资源块0的子载波0，即该小区B的point A，对应的，k1＝0。
下面结合列表对NR系统中的numerology进行说明。
与LTE系统仅支持15kHz的子载波间隔不同，NR系统支持多套基础参数设计，如15、30、60、120、240kHz的子载波间隔(Δf)，以支持百MHz到几十GHz的频谱。NR可支持多种与子载波间隔相关的numerology，具体地，由表1表示：
表1支持的传输numerologies
μ Δf＝2 μ·15[kHz] CP
0 15 正常
1 30 正常
2 60 正常，扩展
3 120 正常
4 240 正常
相应的，NR系统中基于不同的numerology的slot配置如表2和表3所示，其中，表2对应于正常循环前缀，表3对应于扩展循环前缀。
表2正常循环前缀对应的每个时隙的OFDM符号数量
Figure PCTCN2019091865-appb-000005
每个无线帧的时隙数量
Figure PCTCN2019091865-appb-000006
以及每个子帧的时隙数量
Figure PCTCN2019091865-appb-000007
Figure PCTCN2019091865-appb-000008
扩展循环前缀对应的每个时隙的OFDM符号数量
Figure PCTCN2019091865-appb-000009
每个无线帧的时隙数量
Figure PCTCN2019091865-appb-000010
以及每个子帧的时隙数量
Figure PCTCN2019091865-appb-000011
Figure PCTCN2019091865-appb-000012
可选地，如图2所示，本公开的一些实施例提供的一种NR系统的定位参考信号配置方法，还可以包括：
步骤102、发送第二目标配置信息，所述第二目标配置信息包括与所述PRS有准共站址(Quasi Co-location，QCL)关系的同步信号块SSB或信道状态信息参考信号(Channel State Information-Reference Signals，CSI-RS)。
当然，第二目标配置信息还可以包括与所述PRS有准共站址(Quasi Co-location，QCL)关系的其他信号，本公开的一些实施例对此不做限定。
上述与PRS具有QCL关系的SSB或CSI-RS用于向所述终端设备提供所述第一目标配置信息，且所提供的所述第一目标配置信息包括：所述PRS的时间信息和波束信息中至少一种。其中，时间信息可以包括平均时延和/或扩展时延。
如果两个天线端口的信号满足QCL关系，那么两组信号经历的信道的多普勒频移，多普勒扩展，平均时延，时延扩展，空间接收参数至少其中之一近似相同。QCL可以包括如下几种类型：
QCL类型A(QCL-TypeA)：{多普勒频移，多普勒扩展，平均延迟，延迟扩展}
QCL类型B(QCL-TypeB)：{多普勒频移，多普勒扩展}
QCL类型C(QCL-TypeC)：{平均延迟，多普勒频移}
QCL类型D(QCL-TypeD)：{空间Rx参数}。
可以理解，通过与PRS有QCL关系的信号向所述终端设备提供所述PRS的时间信息和波束信息，可以用于实现终端设备的辅助定位。定位时，终端设备可通过SSB或CSI-RS提供的波束信息，获得发送波束的到达角(Arival of Angle，AOA)等定位信息，用于辅助定位。
具体的，可在PRS伪随机序列的初始值(C init)中加入与PRS相关联的 SSB ID信息。在定位时，终端设备可通过对PRS序列的检测获取关联的SSB ID。已知SSB ID，即可得知发送PRS的波束是哪一个，从而获得了发送波束的AOA等信息，用于辅助定位。
可选地，所述第一目标配置信息还可以包括下列信息中的至少一种：所述PRS的小区ID信息、所述终端设备的定位性能指标信息、所述网络设备配置所述PRS的时隙配置信息、所述网络设备配置所述PRS的子载波间隔信息、所述网络设备给所述终端设备配置的带宽信息、所述PRS的循环前缀CP信息、所述网络设备配置所述PRS的端口信息，以及所述PRS的功率增益信息。
其中，小区ID信息可以为PRS所在小区的物理小区标识或虚拟小区标识。
终端设备的定位性能指标信息可以包括目标定位精度及目标延迟信息，这些定位性能指标信息为终端设备所在场景下要求的定位性能指标，一般而言，这些性能指标与PRS资源映射图样有关。如果当前场景要求定位精度高，则使用定位性能好的PRS资源映射图样；如果当前场景要求的定位精度较低，则使用定位性能一般的PRS资源映射图样；如果当前场景对定位时延要求高，则使用时延较小的PRS资源映射图样；如果当前场景对定位时延要求不高，则不使用时延较小的PRS资源映射图样。
网络设备配资的PRS的时隙配置信息包括一个定位burst所占的连续下行时隙数的信息、PRS周期信息、PRS信号的时隙偏移量等信息。
例如，定位参考信号可在N PRS个连续下行时隙中传输，且第一个时隙满足如下公式：
Figure PCTCN2019091865-appb-000013
其中，
Figure PCTCN2019091865-appb-000014
为某个numerology下一个无线帧包含的时隙数，n f为无线帧号，n s为一个无线帧内的时隙号，Δ PRS为PRS信号的时隙偏移量，T PRS为PRS信号发送周期。
网络设备配置PRS的子载波间隔信息，可以为网络设备为终端设备配置PRS的子载波间隔宽度信息。
PRS的循环前缀CP信息包含正常CP或扩展CP信息，其中，扩展CP用在距离终端设备较远的测量小区中。网络设备配置需要通过某小区发送的PRS时，只配置常规CP或只配置扩展CP，一般不会同时配置常规CP和扩展CP。另外，考虑网络设备可能通过距离终端设备较远的小区配置PRS，因此可允许在除了60kHz(μ＝2)的其他一个或多个Numerology上配置扩展CP。
网络设备配置(或发送)PRS的端口信息，可以为小区发送PRS的逻辑端口信息，包含端口数和端口索引(index)信息。
PRS的功率增益(power boosting)信息，可以为网设备为每个PRS RE配置的功率提升参数，功率增益信息与参与定位的小区数，PRS端口数和PRS资源映射图样信息等至少一项相关。
可选地，所述第一目标配置信息可以是基于部分带宽BWP配置的；或者，所述第一目标配置信息可以是基于小区配置的。
基于BWP的配置就是PRS的所有配置在BWP下配置，不同BWP具有不同的PRS配置。基于小区的配置就是PRS的所有配置在小区下配置，不同的小区具有不同的PRS配置。例如，基于BWP配置和NR R-15中CSI-RS、解调参考信号(De Modulation Reference Signal，DMRS)的配置类似，即PRS的在BWP下配置；基于小区配置，即PRS可在小区级配置。
可选地，上述第一目标配置信息还可以包括：所述PRS与第二预设信号的资源复用信息。
其中，第二预设信号可以包括但不限于：同步信号块SSB、信道状态信息参考信号CSI-RS、物理下行控制信道(Physical Downlink Control Channel，PDCCH)、物理下行共享信道(Physical Downlink Shared Channel，PDSCH)、跟踪参考信号(Tracking Reference Signals，TRS)、相位跟踪参考信号(Phase  Tracking Reference Signals，PTRS)和解调参考信号DMRS中的至少一种。
即配置PRS与其他信号或信道(如SSB、CSI-RS、TRS、DMRS、PTRS、PDCCH或PDSCH等)复用或者不复用，也就是说PRS是否要避免与其他参考信号或信道发生碰撞，是否要与其他参考信号或信道频分复用或时分复用。
例如，假设与PRS有复用关系的信号为PDSCH，网络设备可以为PRS配置关于PDSCH的复用信息。
具体如在频率范围1(低频范围)，网络设备配置在发送PRS的时隙不发送PDSCH，也即PRS与PDSCH不复用资源。
再如，在频率范围2(高频范围)，如果PRS与PDSCH具有QCL关联，则有两种配置方案：一是，允许终端设备同时接收PRS与PDSCH，若PRS与PDSCH发生碰撞，则在该资源粒子RE所在的位置打掉PDSCH，PDSCH与其他资源粒子进行速率匹配；二是，网络设备在该时隙不发送PDSCH，也即PRS与PDSCH不复用资源。如果PRS与PDSCH没有QCL关联关系，则终端设备在该时隙只接收PRS或只接收PDSCH。
可选地，上述任一实施例中所述的第一目标配置信息或第二目标配置信息可以通过下列方式中的至少一种进行发送：基于高层信令发送所述第一目标配置信息，例如无线资源控制(Radio Resource Control，RRC)；基于MAC层信令发送所述第一目标配置信息；或基于下行控制信息(Downlink Control Information，DCI)发送所述第一目标配置信息；或基于UE与位置服务器之间的定位协议LPP(LTE Positioning Protocol)。
当然，一些第一目标配置信息也可以由协议固定，例如PRS带宽等信息，对于可以由协议固定的第一目标配置信息，网络设备可以不给终端设备发送，而由终端设备自身通过查询协议获得，以节约网络设备的传输资源。
可选地，如图3所示，上述任一实施例提供的一种NR系统的定位参考信号配置方法，还可以包括如下步骤：
步骤104、发送一个或多个PRS资源集，所述PRS资源集中包括映射在 至少一个资源粒子上的至少一个PRS资源。
具体的，网络设备可以在一个时隙内配置1个PRS资源集，该PRS资源集可以包含多个周期性PRS资源，且一个时隙内的多个PRS资源具有相同的周期、带宽以及频域密度，PRS资源具体的时域及频域位置可由高层灵活配置。
如图4所示(图4是根据本公开的一些实施例的一种PRS资源映射结构示意图)，网络设备可以在一个时隙(包含0至13共14个OFDM符号)内配置1个PRS资源集，1个PRS资源集内包含8个周期性PRS资源，在图4中，附图标记41和42所指的映射在同一OFDM符号中不同频域位置的两个资源粒子上的PRS即为一个PRS资源。
可选地，如图3所示，在步骤104之前，上述任一实施例提供的一种NR系统的定位参考信号配置方法，还可以包括如下步骤：
步骤103、发送第三目标配置信息，所述第三目标配置信息用于配置所述PRS资源集中的PRS。
其中，所述第三目标配置信息包括但不限于下列信息中的一种或多种：
(1)所述PRS资源集中的PRS对应的资源配置标识，也可以称为PRS资源ID。
(2)所述PRS资源集中的PRS的周期信息和时隙信息，例如时隙偏移量。
(3)所述PRS资源集中的PRS与所述网络设备的资源的映射信息，该资源映射信息可以包括PRS资源的发送端口信息、OFDM符号及子载波占用位置、频域密度及带宽信息等；频域密度可以是指每个PRS发送端口上每个物理资源块(Physical Resource Block，PRB)的PRS频域密度，PRS可以在频域上可以等间隔分布，带宽信息可以包含PRS的贷款和频域初始PRB索引信息。
(4)所述PRS资源集中的PRS功率控制信息，功率控制信息可以包含 PRS每个资源粒子的能量(Energy per Resource Element，EPRE)与SSB EPRE的比率，和PRS EPRE与PDSCH EPRE的比率至少其中一项。
(5)用于生成所述PRS资源集中的PRS的生成参数，例如用于确定PRS伪随机序列中的初始值的扰码ID信息，扰码ID信息可以由网络设备配置。
(6)所述PRS资源集中的PRS的部分带宽BWP信息，BWP信息定义了网络设备在哪个BWP上配置PRS。
(7)所述PRS资源集中的PRS的QCL信息，QCL信息包含了PRS传输配置指示(Transmission Configuration Indicator，TCI)状态信息，该状态信息用于指示PRS的QCL源参考信号。
另外，同第一目标配置信息或第二目标配置信息，第三目标配置信息也可以通过下列方式中的至少一种进行发送：基于高层信令发送所述第三目标配置信息(例如，RRC)、基于MAC层信令发送所述第三目标配置信息，或基于下行控制信息DCI发送所述第三目标配置信息,或基于UE与位置服务器之间的定位协议LPP(LTE Positioning Protocol)发送所述第三目标配置信息。
此外，部分第三目标配置信息也可以由协议固定，例如PRS带宽等信息，对于可以由协议固定的第三目标配置信，网络设备可以不给终端设备发送，而由终端设备自身通过查询协议获得，以节约网络设备的传输资源。
总而言之，本公开的一些实施例提供的一种NR系统的定位参考信号配置方法，由于能够发送用于配置终端设备的定位参考信号PRS的第一目标配置信息，因此可以使NR系统中的终端设备获得PRS，提高通信有效性。
以上对应用于网络设备的NR系统的定位参考信号配置方法进行了说明，下面结合图5对本公开的一些实施例提供的一种应用于终端设备中的NR系统的定位参考信号接收方法进行说明。
如图5所示，根据本公开一个实施例的NR系统的定位参考信号接收方法，应用于终端设备，可以包括如下步骤：
步骤501：接收第一目标配置信息，所述第一目标配置信息用于配置所述终端设备的定位参考信号PRS。
图5所示的实施例提供的一种NR系统的定位参考信号接收方法，由于能够接收用于配置终端设备的定位参考信号PRS的第一目标配置信息，因此能够获得PRS。
下面结合具体的实施例对上述接收第一目标配置信息的方式，以及第一目标配置信息包含的内容进行说明。
可选地，第一目标配置信息是网络设备通过多个小区中的一个小区为所述终端设备配置的，所述多个小区由所述网络设备从距所述终端设备预定距离内的小区中选择确定。
更为详细的，网络设备可以基于下列方式中的一种或多种从距所述终端设备预定距离内的小区中选择多个小区：
基于距所述终端设备预定距离内的小区的无线资源管理RRM报告，从距所述终端设备预定距离内的小区中选择多个小区；
基于预先对所述终端设备的位置的估计，从距所述终端设备预定距离内的小区中选择多个小区；以及
基于距所述终端设备预定距离内的小区发送的PRS的到达时间TOA，从距所述终端设备预定距离内的小区中选择多个小区。
可选地，所述第一目标配置信息包括所述PRS的生成参数，以及在所述接收所述第一目标配置信息之后，所述方法还包括：接收所述PRS，所述PRS是基于生成参数生成的。
其中，所述生成参数与下列参数中至少一项相关联：
所述PRS所在无线帧内的时隙号，
所述PRS所在时隙内的正交频分复用OFDM符号的序号，
所述PRS的循环前缀CP的类型，
所述PRS的小区ID信息，
所述终端设备的ID或所述终端设备所属用户组的ID，以及
同步信号块SSB的ID。
可选地，所述第一目标配置信息可以包括：所述PRS占用的资源粒子RE的时域位置信息和频域位置信息，所述频域位置与所述网络设备的指定numerology相关联，且所述频域位置信息包括所述频域位置的起始点信息。其中，所述起始点信息为所述网络设备的第一个公共资源块上的第一个子载波。
相应的，终端设备可以在所述时域位置和与所述指定numerology相关联的所述频域位置上接收所述PRS。
具体来说，终端设备可以接收某个指定numerology下的，映射在时频位置为(k,l)的资源粒子(Resource Element，RE)上的PRS，其中，k表示该numerology下的频域位置，l表示一个时隙内的OFDM符号序号，PRS的频域位置的起始点为发送该PRS的小区的公共资源块0上的子载波0，即该小区的point A(参考点A)，并且，对应的k＝0。
可选地，本公开提供的一种NR系统的定位参考信号接收方法，还可以包括：接收第二目标配置信息，所述第二目标配置信息包括与所述PRS有准共站址QCL关系的同步信号块SSB或信道状态信息参考信号CSI-RS。
其中，所述SSB或所述CSI-RS用于向所述终端设备提供所述第一目标配置信息，且所提供的所述第一目标配置信息包括：所述PRS的时间信息和波束信息中至少一种。
可选地，所述第一目标配置信息还包括下列信息中的至少一种：所述PRS的小区ID信息、所述终端设备的定位性能指标信息、所述网络设备配置所述PRS的时隙配置信息、所述网络设备配置所述PRS的子载波间隔信息、所述网络设备给所述终端设备配置的带宽信息、所述PRS的循环前缀CP信息、所述网络设备配置所述PRS的端口信息，以及所述PRS的功率增益信息。
可选地，所述第一目标配置信息是基于部分带宽BWP配置的；或者所述 第一目标配置信息是基于小区配置的。
可选地，所述第一目标配置信息还包括：所述PRS与第二预设信号的资源复用信息。
其中，所述第二预设信号包括同步信号块SSB、信道状态信息参考信号CSI-RS、物理下行控制信道PDCCH和物理下行共享信道PDSCH、跟踪参考信号TRS、相位跟踪参考信号PTRS和解调参考信号DMRS的至少一种。
可选地，终端设备可以基于下列方式中的至少一种接收所述第一目标配置信息或所述第二目标配置信息：基于高层信令接收所述第一目标配置信息、基于MAC层信令接收所述第一目标配置信息，或基于下行控制信息DCI接收所述第一目标配置信息。
当然，对于部分可以由协议固定的第一目标配置信息或第二目标配置信息，终端设备可以通过查询协议获得，而无需从网络设备处接收，以节约网络设备的传输资源。
可选地，图5所示的NR系统的定位参考信号接收方法还可以包括：接收一个或多个PRS资源集，所述PRS资源集中包括映射在至少一个资源粒子上的至少一个PRS资源。
可选地，在接收一个或多个PRS资源集之前，图5所示的NR系统的定位参考信号接收方法还可以包括：接收第三目标配置信息，所述第三目标配置信息用于配置所述PRS资源集中的PRS。
其中，所述第三目标配置信息包括下列信息中的一种或多种：所述PRS资源集中的PRS对应的资源配置标识、所述PRS资源集中的PRS的周期信息和时隙信息、所述PRS资源集中的PRS与所述网络设备的资源的映射信息、所述PRS资源集中的PRS功率控制信息、用于生成所述PRS资源集中的PRS的生成参数、所述PRS资源集中的PRS的部分带宽BWP信息，以及所述PRS资源集中的PRS的QCL信息。
可选地，同接收第一目标配置信息或第二目标配置信息类似，终端设备 可以基于下列方式中的至少一种接收所述第三目标配置信息：基于高层信令接收所述第三目标配置信息(例如RRC)、基于MAC层信令接收所述第三目标配置信息、或基于下行控制信息DCI接收所述第三目标配置信息，或基于UE与位置服务器之间的定位协议LPP(LTE Positioning Protocol)接收所述第三目标配置信息。
另外，对于部分可以由协议固定的第三目标配置信息，终端设备可以通过查询协议获得，而无需从网络设备处接收，以节约网络设备的传输资源。
由于本公开的一些实施例提供的一种NR系统的定位参考信号接收方法，与本公开的一些实施例提供的一种NR系统的定位参考信号配置方法相对应，因此，本说明书对NR系统的定位参考信号接收方法的描述较为简单，相关之处，请参考上文中对NR系统的定位参考信号配置方法的描述。
可选地，终端设备在接收到网络设备配置的PRS之后，可以进一步基于该PRS进行定位。下面以将PRS应用在观测到达时间(Observed Time Difference of Arrival，OTDOA)定位中为例，对终端设备基于PRS进行定位的过程进行简要的说明。
如图12所示，OTDOA定位方法基于PRS定位的过程可以包括如下步骤：
步骤1201、网络设备基于上文中述及的方法生成PRS，其中，所述网络设备包括所述终端设备的服务小区和从终端设备附近选出的多个邻小区。
步骤1202、网络设备向终端设备发送PRS。
步骤1203、终端设备对来自邻小区的PRS与来自服务小区的PRS做时域相关，得到每一邻小区对应的时延功率谱。
其中，来自服务小区的PRS也可以称为终端设备的本地PRS。
步骤1204、终端设备根据邻小区对应的时延功率谱寻找该邻小区的首达径，获得每个邻小区发送的PRS到达终端设备的TOA。
步骤1205、终端设备分别确定服务小区与每个邻小区的参考信号时差(Reference Signal Time Difference，RSTD)。
步骤1206、终端设备基于至少三个邻小区对应的RSTD，确定终端设备的位置。
具体可以是计算终端设备的坐标。
在上述过程中，终端设备并不获取精确的PRS到达时间(TOA)，终端设备的位置由至少三个邻小区的到达时间差(TDOA)来确定，即由相对时间而不是绝对时间确定。
图13出了OTDOA定位原理图，从图13中可以看出，三个参与定位的邻小区基站(第一邻小区基站131、第二邻小区基站132和第三邻小区基站133)可以把终端设备限定在极小部分区域134内，第一邻小区基站131、第二邻小区基站132和第三邻小区基站133到终端设备的距离分别为d1、d2和d3。理想的情况下，终端设备的位置在第一曲线135和第二曲线136的交叉点处，但是由于第一曲线135和第二曲线136的位置存在误差，具体的，第一曲线135的位置可能在第一虚线1351和第二虚线1352之间，第二曲线136的位置可能在第三虚线1361和第四虚线1362之间，因此，由三个邻小区基站确定出的终端设备的位置在区域134内。再增加一个邻小区基站可以把终端设备限定在另一块区域内，取重合部分即可缩小终端设备的位置范围，不难理解，参与定位的邻小区基站越多，定位精度越高。
下面将结合图6至图9详细描述根据本公开的一些实施例的网络设备和终端设备。
图6示出了本公开的一些实施例提供的一种网络设备的结构示意图，如图6所示，网络设备600包括：第一发送模块601。
本公开的一些实施例提供的网络设备600，由于能够发送用于配置终端设备的定位参考信号PRS的第一目标配置信息，因此可以使NR系统中的终端设备获得PRS，提高通信有效性。
下面结合具体的实施例对网络设备600进行说明。
可选地，所述第一发送模块601具体可以用于：
从距所述终端设备预定距离内的小区中选择多个小区；
通过所述多个小区为所述终端设备配置所述第一目标配置信息，并发送所述第一目标配置信息。
更为具体的，所述第一发送模块601基于下列方式中的一种或多种从距所述终端设备预定距离内的小区中选择多个小区：
基于距所述终端设备预定距离内的小区的无线资源管理RRM报告，从距所述终端设备预定距离内的小区中选择多个小区；
基于预先对所述终端设备的位置的估计，从距所述终端设备预定距离内的小区中选择多个小区；以及
基于距所述终端设备预定距离内的小区发送的PRS的到达时间TOA，从距所述终端设备预定距离内的小区中选择多个小区。
可选地，所述第一目标配置信息包括所述PRS的生成参数，装置600还可以包括：
第二发送模块，用于在所述发送第一目标配置信息之后，基于所述生成参数生成所述PRS，并发送所述PRS。
其中，所述生成参数与下列参数中至少一项相关联：
所述PRS所在无线帧内的时隙号，
所述PRS所在时隙内的正交频分复用OFDM符号的序号，
所述PRS的循环前缀CP的类型，
所述PRS的小区ID信息，
所述终端设备的ID或所述终端设备所属用户组的ID，以及
同步信号块SSB的ID。
可选地，所述第一目标配置信息包括：所述PRS占用的资源粒子RE的时域位置信息和频域位置信息，所述频域位置与所述网络设备的指定numerology相关联，且所述频域位置信息包括所述频域位置的起始点信息。其中，所述起始点信息为所述网络设备的第一个公共资源块上的第一个子载 波。
相应的，所述第二发送模块，用于在所述时域位置和与所述指定numerology相关联的所述频域位置上发送所述PRS。
可选地，如图7所示，网络设备600还可以包括：第三发送模块602，用于发送第二目标配置信息，所述第二目标配置信息包括与所述PRS有准共站址QCL关系的同步信号块SSB或信道状态信息参考信号CSI-RS。
其中，所述SSB或所述CSI-RS用于向所述终端设备提供所述第一目标配置信息，且所提供的所述第一目标配置信息包括：所述PRS的时间信息和波束信息中至少一种。
可选地，所述第一目标配置信息还包括下列信息中的至少一种：
所述PRS的小区ID信息；
所述终端设备的定位性能指标信息；
所述网络设备配置所述PRS的时隙配置信息；
所述网络设备配置所述PRS的子载波间隔信息；
所述网络设备给所述终端设备配置的带宽信息；
所述PRS的循环前缀CP信息；
所述网络设备配置所述PRS的端口信息；以及
所述PRS的功率增益信息。
可选地，所述第一目标配置信息是基于部分带宽BWP配置的；或者所述第一目标配置信息是基于小区配置的。
可选地，所述第一目标配置信息还包括：所述PRS与第二预设信号的资源复用信息。
其中，所述第二预设信号包括：同步信号块SSB、信道状态信息参考信号CSI-RS、物理下行控制信道PDCCH、物理下行共享信道PDSCH、跟踪参考信号TRS、相位跟踪参考信号PTRS 和解调参考信号DMRS中的至少一种。
可选地，所述第一发送模块基于下列方式中的至少一种发送所述第一目 标配置信息：基于高层信令发送所述第一目标配置信息、基于MAC层信令发送所述第一目标配置信息、或基于下行控制信息DCI发送所述第一目标配置信息。
可选地，如图8所示，网络设备600还可以包括：第四发送模块603，用于发送一个或多个PRS资源集，所述PRS资源集中包括映射在至少一个资源粒子上的至少一个PRS资源。
以及可选地，网络设备600还可以包括：第五发送模块604，用于在所述发送一个或多个PRS资源集之前，发送第三目标配置信息，所述第三目标配置信息用于配置所述PRS资源集中的PRS。
其中，所述第三目标配置信息包括下列信息中的一种或多种：
所述PRS资源集中的PRS对应的资源配置标识；
所述PRS资源集中的PRS的周期信息和时隙信息；
所述PRS资源集中的PRS与所述网络设备的资源的映射信息；
所述PRS资源集中的PRS功率控制信息；
用于生成所述PRS资源集中的PRS的生成参数；
所述PRS资源集中的PRS的部分带宽BWP信息；
所述PRS资源集中的PRS的QCL信息。
可选地，第五发送模块604可以所述第五发送模块基于下列方式中的至少一种发送所述第三目标配置信息：基于高层信令发送所述第三目标配置信息、基于MAC层信令发送所述第三目标配置信息、基于下行控制信息DCI发送所述第三目标配置信息或基于用户设备(UE)与位置服务器之间的定位协议(LPP)发送所述第三目标配置信息。
上述图6至图8所示的网络设备，可以用于实现上述图1-图3所示的NR系统的定位参考信号配置方法的各个实施例，相关之处请参考上述方法实施例。
如图9所示，本公开的一些实施例还提供了终端设备900，该终端设备 900可以包括：第一接收模块901，用于接收第一目标配置信息，所述第一目标配置信息用于配置所述终端设备的定位参考信号PRS。
图9所示的实施例提供的终端设备900，由于能够接收用于配置终端设备的定位参考信号PRS的第一目标配置信息，因此能够获得PRS。
下面结合具体的实施例对上述接收第一目标配置信息的方式，以及第一目标配置信息包含的内容进行说明。
可选地，第一目标配置信息是网络设备通过多个小区中的一个小区为所述终端设备配置的，所述多个小区由所述网络设备从距所述终端设备预定距离内的小区中选择确定。
进一步地，第一接收模块901可以基于下列方式中的一种或多种从距所述终端设备预定距离内的小区中选择多个小区：
基于距所述终端设备预定距离内的小区的无线资源管理RRM报告，从距所述终端设备预定距离内的小区中选择多个小区；
基于预先对所述终端设备的位置的估计，从距所述终端设备预定距离内的小区中选择多个小区；以及
基于距所述终端设备预定距离内的小区发送的PRS的到达时间TOA，从距所述终端设备预定距离内的小区中选择多个小区。
可选地，所述第一目标配置信息包括所述PRS的生成参数，所述终端设备900还可以包括：
第二接收模块，用于在所述接收所述第一目标配置信息之后，接收所述PRS，所述PRS是基于生成参数生成的。
其中，所述生成参数与下列参数中至少一项相关联：
所述PRS所在无线帧内的时隙号，
所述PRS所在时隙内的正交频分复用OFDM符号的序号，
所述PRS的循环前缀CP的类型，
所述PRS的小区ID信息，
所述终端设备的ID或所述终端设备所属用户组的ID，以及
同步信号块SSB的ID。
可选地，所述第一目标配置信息包括：所述PRS占用的资源粒子RE的时域位置信息和频域位置信息，所述频域位置与所述网络设备的指定numerology相关联，且所述频域位置信息包括所述频域位置的起始点信息。其中，所述起始点信息为所述网络设备的第一个公共资源块上的第一个子载波。
相应的，所述第二接收模块在所述时域位置和与所述指定numerology相关联的所述频域位置上接收所述PRS。
可选地，所述终端设备900还可以包括：第三接收模块，用于接收第二目标配置信息，所述第二目标配置信息包括与所述PRS有准共站址QCL关系的同步信号块SSB或信道状态信息参考信号CSI-RS。
其中，所述SSB或所述CSI-RS用于向所述终端设备提供所述第一目标配置信息，且所提供的所述第一目标配置信息包括：所述PRS的时间信息和波束信息中至少一种。
可选地，所述第一目标配置信息还包括下列信息中的至少一种：
所述PRS的小区ID信息；
所述终端设备的定位性能指标信息；
所述网络设备配置所述PRS的时隙配置信息；
所述网络设备配置所述PRS的子载波间隔信息；
所述网络设备给所述终端设备配置的带宽信息；
所述PRS的循环前缀CP信息；
所述网络设备配置所述PRS的端口信息；以及
所述PRS的功率增益信息。
可选地，所述第一目标配置信息是基于部分带宽BWP配置的；或者所述第一目标配置信息是基于小区配置的。
可选地，所述第一目标配置信息还包括：所述PRS与第二预设信号的资源复用信息。
其中，所述第二预设信号包括同步信号块SSB、信道状态信息参考信号CSI-RS、物理下行控制信道PDCCH和物理下行共享信道PDSCH、跟踪参考信号TRS、相位跟踪参考信号PTRS和解调参考信号DMRS的至少一种。
可选地，所述第一接收模块基于下列方式中的至少一种接收所述第一目标配置信息：基于高层信令接收所述第一目标配置信息、基于MAC层信令接收所述第一目标配置信息、或基于下行控制信息DCI接收所述第一目标配置信息。
可选地，终端设备900还可以包括：第四接收模块，用于接收一个或多个PRS资源集，所述PRS资源集中包括映射在至少一个资源粒子上的至少一个PRS资源。
可选地，终端设备900还可以包括：第五接收模块，用于在所述接收一个或多个PRS资源集之前，接收第三目标配置信息，所述第三目标配置信息用于配置所述PRS资源集中的PRS。
其中，所述第三目标配置信息包括下列信息中的一种或多种：
所述PRS资源集中的PRS对应的资源配置标识；
所述PRS资源集中的PRS的周期信息和时隙信息；
所述PRS资源集中的PRS与所述网络设备的资源的映射信息；
所述PRS资源集中的PRS功率控制信息；
用于生成所述PRS资源集中的PRS的生成参数；
所述PRS资源集中的PRS的部分带宽BWP信息；
所述PRS资源集中的PRS的QCL信息。
可选地，所述第五接收模块基于下列方式中的至少一种接收所述第三目标配置信息：基于高层信令接收所述第三目标配置信息(例如RRC)、基于MAC层信令接收所述第三目标配置信息、或基于下行控制信息DCI接收所 述第三目标配置信息，或基于UE与位置服务器之间的定位协议LPP(LTE Positioning Protocol)接收所述第三目标配置信息。
请参阅图10，图10是本公开的一些实施例应用的网络设备的结构图，能够实现上述NR系统的定位参考信号配置方法的细节，并达到相同的效果。如图10所示，网络设备1000包括：处理器1001、收发机1002、存储器1003、用户接口1004和总线接口，其中：
在本公开的一些实施例中，网络设备1000还包括：存储在存储器上1003并可在处理器1001上运行的计算机程序，计算机程序被处理器1001、执行时实现上述NR系统的定位参考信号配置方法的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
在图10中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器1001代表的至少一个处理器和存储器1003代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机1002可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的终端设备，用户接口1004还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器1001负责管理总线架构和通常的处理，存储器1003可以存储处理器1001在执行操作时所使用的数据。
图11是本公开另一个实施例的终端设备的结构示意图。图11所示的终端设备1100包括：至少一个处理器1101、存储器1102、至少一个网络接口1104和用户接口1103。终端设备1100中的各个组件通过总线系统1105耦合在一起。可理解，总线系统1105用于实现这些组件之间的连接通信。总线系统1105除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图11中将各种总线都标为总线系统1105。
其中，用户接口1103可以包括显示器、键盘或者点击设备(例如，鼠标，轨迹球(trackball)、触感板或者触摸屏等。
可以理解，本公开的一些实施例中的存储器1102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，DDRSDRAM)、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(Synch Link DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本公开的一些实施例描述的系统和方法的存储器1102旨在包括但不限于这些和任意其它适合类型的存储器。
在一些实施方式中，存储器1102存储了如下的元素，可执行模块或者数据结构，或者他们的子集，或者他们的扩展集：操作系统11021和应用程序11022。
其中，操作系统11021，包含各种系统程序，例如框架层、核心库层、驱动层等，用于实现各种基础业务以及处理基于硬件的任务。应用程序11022，包含各种应用程序，例如媒体播放器(Media Player)、浏览器(Browser)等，用于实现各种应用业务。实现本公开的一些实施例方法的程序可以包含在应用程序11022中。
在本公开的一些实施例中，终端设备1100还包括：存储在存储器1102 上并可在处理器1101上运行的计算机程序，计算机程序被处理器1101执行时实现上述NR系统的定位参考信号配置方法的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
上述本公开的一些实施例揭示的方法可以应用于处理器1101中，或者由处理器1101实现。处理器1101可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器1101中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器1101可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者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。可以实现或者执行本公开的一些实施例中的公开的各方法、步骤及逻辑框图。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。结合本公开的一些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计算机可读存储介质中。该计算机可读存储介质位于存储器1102，处理器1101读取存储器1102中的信息，结合其硬件完成上述方法的步骤。具体地，该计算机可读存储介质上存储有计算机程序，计算机程序被处理器1101执行时实现如上述NR系统的定位参考信号配置方法实施例的各步骤。
可以理解的是，本公开的一些实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现，处理单元可以实现在至少一个专用集成电路(Application Specific Integrated Circuits，ASIC)、数字信号处理器(Digital Signal Processing，DSP)、数字信号处理设备(DSP Device，DSPD)、可编程逻辑设备(Programmable Logic Device，PLD)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)、通用处理器、控制器、 微控制器、微处理器、用于执行本公开所述功能的其它电子单元或其组合中。
对于软件实现，可通过执行本公开的一些实施例所述功能的模块(例如过程、函数等)来实现本公开的一些实施例所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
本公开的一些实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现上述NR系统的定位参考信号配置方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等。
本公开的一些实施例还提供一种包括指令的计算机程序产品，当计算机运行所述计算机程序产品的所述指令时，所述计算机执行上述NR系统的定位参考信号配置方法或者上述NR系统的定位参考信号的接收方法。具体地，该计算机程序产品可以运行于上述网络设备上。
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公开的范围。
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，上述描述的系统、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。
在本公开所提供的几个实施例中，应该理解到，所揭露的系统、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系 统，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，在本公开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，本公开的技术方案本质上或者说对相关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)执行本公开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，仅为本公开的具体实施方式，但本公开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公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应所述以权利要求的保护范围为准。

Claims (39)

  1. 一种新无线NR系统的定位参考信号配置方法，应用于网络设备，所述方法包括：
    发送第一目标配置信息，所述第一目标配置信息用于配置终端设备的定位参考信号PRS。
  2. 根据权利要求1所述的方法，其中，
    从距所述终端设备预定距离内的小区中选择多个小区；
    通过所述多个小区为所述终端设备配置所述第一目标配置信息，并发送所述第一目标配置信息。
  3. 根据权利要求2所述的方法，其中，
    基于下列方式中的一种或多种从距所述终端设备预定距离内的小区中选择多个小区：
    基于距所述终端设备预定距离内的小区的无线资源管理RRM报告，从距所述终端设备预定距离内的小区中选择多个小区；
    基于预先对所述终端设备的位置的估计，从距所述终端设备预定距离内的小区中选择多个小区；以及
    基于距所述终端设备预定距离内的小区发送的PRS到达时间TOA，从距所述终端设备预定距离内的小区中选择多个小区。
  4. 根据权利要求1所述的方法，其中，所述第一目标配置信息包括所述PRS的生成参数，在所述发送第一目标配置信息之后，所述方法还包括：
    基于所述生成参数生成所述PRS，并发送所述PRS；
    其中，所述生成参数与下列参数中至少一项相关联：
    所述PRS所在无线帧内的时隙号，
    所述PRS所在时隙内的正交频分复用OFDM符号的序号，
    所述PRS的循环前缀CP的类型，
    所述PRS的小区ID信息，
    所述终端设备的ID或所述终端设备所属用户组的ID，以及
    同步信号块SSB的ID。
  5. 根据权利要求4所述的方法，其中，
    所述第一目标配置信息包括：所述PRS占用的资源粒子RE的时域位置信息和频域位置信息，所述频域位置与所述网络设备的指定numerology相关联，且所述频域位置信息包括所述频域位置的起始点信息；
    其中，在所述时域位置和与所述指定numerology相关联的所述频域位置上发送所述PRS。
  6. 根据权利要求5所述的方法，其中，
    所述起始点信息为所述网络设备的第一个公共资源块上的第一个子载波。
  7. 根据权利要求1-6中任一项所述的方法，还包括：
    发送第二目标配置信息，所述第二目标配置信息包括与所述PRS有准共站址QCL关系的同步信号块SSB或信道状态信息参考信号CSI-RS；
    其中，所述SSB或所述CSI-RS用于向所述终端设备提供所述第一目标配置信息，且所提供的所述第一目标配置信息包括：所述PRS的时间信息和波束信息中至少一种。
  8. 根据权利要求1-6中任一项所述的方法，其中，
    所述第一目标配置信息还包括下列信息中的至少一种：
    所述PRS的小区ID信息；
    所述终端设备的定位性能指标信息；
    所述网络设备配置所述PRS的时隙配置信息；
    所述网络设备配置所述PRS的子载波间隔信息；
    所述网络设备给所述终端设备配置的带宽信息；
    所述PRS的循环前缀CP信息；
    所述网络设备配置所述PRS的端口信息；以及
    所述PRS的功率增益信息。
  9. 根据权利要求8所述方法，其中，所述网络侧配置的多个参与定位的小区的PRS的子载波间隔相同，CP类型相同。
  10. 根据权利要求8所述的方法，还包括：
    PRS在N PRS个连续下行时隙中传输，且第一个时隙满足如下公式：
    Figure PCTCN2019091865-appb-100001
    其中，
    Figure PCTCN2019091865-appb-100002
    为某个numerology下一个无线帧包含的时隙数，n f为无线帧号，n s为一个无线帧内的时隙号，Δ PRS为PRS信号的时隙偏移量，T PRS为PRS信号发送周期。
  11. 根据权利要求1-6中任一项所述的方法，其中，
    所述第一目标配置信息是基于部分带宽BWP配置的；或者
    所述第一目标配置信息是基于小区配置的。
  12. 根据权利要求1-6中任一项所述的方法，其中，
    所述第一目标配置信息还包括：所述PRS与第二预设信号的资源复用信息；
    其中，所述第二预设信号包括：同步信号块SSB、信道状态信息参考信号CSI-RS、物理下行控制信道PDCCH、物理下行共享信道PDSCH、跟踪参考信号TRS、相位跟踪参考信号PTRS和解调参考信号DMRS中的至少一种。
  13. 根据权利要求1所述的方法，其中，
    基于下列方式中的至少一种发送所述第一目标配置信息：
    基于高层信令发送所述第一目标配置信息；
    基于媒体接入控制MAC层信令发送所述第一目标配置信息；或
    基于下行控制信息DCI发送所述第一目标配置信息。
  14. 根据权利要求1所述的方法，还包括：
    发送一个或多个PRS资源集，所述PRS资源集中包括映射在至少一个资源粒子上的至少一个PRS资源。
  15. 根据权利要求14所述的方法，其中，在所述发送一个或多个PRS资源集之前，所述方法还包括：
    发送第三目标配置信息，所述第三目标配置信息用于配置所述PRS资源集中的PRS。
  16. 根据权利要求15所述的方法，其中，
    所述第三目标配置信息包括下列信息中的一种或多种：
    所述PRS资源集中的PRS对应的资源配置标识；
    所述PRS资源集中的PRS的周期信息和时隙信息；所述PRS资源集中的PRS与所述网络设备的资源的映射信息；
    所述PRS资源集中的PRS功率控制信息；
    用于生成所述PRS资源集中的PRS的生成参数；
    所述PRS资源集中的PRS的部分带宽BWP信息；
    所述PRS资源集中的PRS的QCL信息。
  17. 根据权利要求15或16所述的方法，其中，
    基于下列方式中的至少一种发送所述第三目标配置信息：
    基于高层信令发送所述第三目标配置信息；
    基于MAC层信令发送所述第三目标配置信息；
    基于下行控制信息DCI发送所述第三目标配置信息；或
    基于用户设备UE与位置服务器之间的定位协议(LPP)发送所述第三目标配置信息。
  18. 一种新无线NR系统的定位参考信号接收方法，应用于用户设备UE，所述方法包括：
    接收第一目标配置信息，所述第一目标配置信息用于配置所述终端设备的定位参考信号PRS。
  19. 根据权利要求18所述的方法，其中，
    第一目标配置信息是网络设备通过多个小区中的一个小区为所述终端设 备配置的，所述多个小区由所述网络设备从距所述终端设备预定距离内的小区中选择确定。
  20. 根据权利要求19所述的方法，其中，
    基于下列方式中的一种或多种从距所述终端设备预定距离内的小区中选择多个小区：
    基于距所述终端设备预定距离内的小区的无线资源管理RRM报告，从距所述终端设备预定距离内的小区中选择多个小区；
    基于预先对所述终端设备的位置的估计，从距所述终端设备预定距离内的小区中选择多个小区；以及
    基于距所述终端设备预定距离内的小区发送的PRS的到达时间TOA，从距所述终端设备预定距离内的小区中选择多个小区。
  21. 根据权利要求18所述的方法，其中，所述第一目标配置信息包括所述PRS的生成参数，在所述接收所述第一目标配置信息之后，所述方法还包括：
    接收所述PRS，所述PRS是基于生成参数生成的；
    其中，所述生成参数与下列参数中至少一项相关联：
    所述PRS所在无线帧内的时隙号，
    所述PRS所在时隙内的正交频分复用OFDM符号的序号，
    所述PRS的循环前缀CP的类型，
    所述PRS的小区ID信息，
    所述终端设备的ID或所述终端设备所属用户组的ID，以及
    同步信号块SSB的ID。
  22. 根据权利要求21所述的方法，其中，
    所述第一目标配置信息包括：所述PRS占用的资源粒子RE的时域位置信息和频域位置信息，所述频域位置与所述网络设备的指定numerology相关联，且所述频域位置信息包括所述频域位置的起始点信息；
    其中，在所述时域位置和与所述指定numerology相关联的所述频域位置上接收所述PRS。
  23. 根据权利要求22所述的方法，其中，
    所述起始点信息为所述网络设备的第一个公共资源块上的第一个子载波。
  24. 根据权利要求18-23中任一项所述的方法，还包括：
    接收第二目标配置信息，所述第二目标配置信息包括与所述PRS有准共站址QCL关系的同步信号块SSB或信道状态信息参考信号CSI-RS；
    其中，所述SSB或所述CSI-RS用于向所述终端设备提供所述第一目标配置信息，且所提供的所述第一目标配置信息包括：所述PRS的时间信息和波束信息中至少一种。
  25. 根据权利要求18-23中任一项所述的方法，其中，
    所述第一目标配置信息还包括下列信息中的至少一种：
    所述PRS的小区ID信息；
    所述终端设备的定位性能指标信息；
    所述网络设备配置所述PRS的时隙配置信息；所述网络设备配置所述PRS的子载波间隔信息；
    所述网络设备给所述终端设备配置的带宽信息；
    所述PRS的循环前缀CP信息；
    所述网络设备配置所述PRS的端口信息；以及
    所述PRS的功率增益信息。
  26. 根据权利要求25所述方法，其中所述UE接收的多个参与定位的小区的PRS的子载波间隔相同，CP类型相同。
  27. 根据权利要求25所述的方法，还包括：
    PRS在N PRS个连续下行时隙中接收，且第一个时隙满足如下公式：
    Figure PCTCN2019091865-appb-100003
    其中，
    Figure PCTCN2019091865-appb-100004
    为某个numerology下一个无线帧包含的时隙数，n f为无线 帧号，n s为一个无线帧内的时隙号，Δ PRS为PRS信号的时隙偏移量，T PRS为PRS信号发送周期。
  28. 根据权利要求18-23中任一项所述的方法，其中，
    所述第一目标配置信息是基于部分带宽BWP配置的；或者
    所述第一目标配置信息是基于小区配置的。
  29. 根据权利要求18-23中任一项所述的方法，其中，
    所述第一目标配置信息还包括：所述PRS与第二预设信号的资源复用信息；
    其中，所述第二预设信号包括同步信号块SSB、信道状态信息参考信号CSI-RS、物理下行控制信道PDCCH和物理下行共享信道PDSCH、跟踪参考信号TRS、相位跟踪参考信号PTRS和解调参考信号DMRS的至少一种。
  30. 根据权利要求18所述的方法，其中，
    基于下列方式中的至少一种接收所述第一目标配置信息：
    基于高层信令接收所述第一目标配置信息；
    基于媒体接入控制MAC层信令接收所述第一目标配置信息；或
    基于下行控制信息DCI接收所述第一目标配置信息。
  31. 根据权利要求18所述的方法，还包括：
    接收一个或多个PRS资源集，所述PRS资源集中包括映射在至少一个资源粒子上的至少一个PRS资源。
  32. 根据权利要求31所述的方法，其中，在所述接收一个或多个PRS资源集之前，所述方法还包括：
    接收第三目标配置信息，所述第三目标配置信息用于配置所述PRS资源集中的PRS。
  33. 根据权利要求32所述的方法，其中，
    所述第三目标配置信息包括下列信息中的一种或多种：
    所述PRS资源集中的PRS对应的资源配置标识；
    所述PRS资源集中的PRS的周期信息和时隙信息；
    所述PRS资源集中的PRS与所述网络设备的资源的映射信息；
    所述PRS资源集中的PRS功率控制信息；
    用于生成所述PRS资源集中的PRS的生成参数；
    所述PRS资源集中的PRS的部分带宽BWP信息；
    所述PRS资源集中的PRS的QCL信息。
  34. 根据权利要求32或33所述的方法，其中，
    基于下列方式中的至少一种接收所述第三目标配置信息：
    基于高层信令接收所述第三目标配置信息；
    基于MAC层信令接收所述第三目标配置信息；
    基于下行控制信息DCI接收所述第三目标配置信息；或
    基于用户设备UE与位置服务器之间的定位协议(LPP)接收所述第三目标配置信息。
  35. 一种网络设备，包括：
    第一发送模块，用于发送第一目标配置信息，所述第一目标配置信息用于配置终端设备的定位参考信号PRS。
  36. 一种终端设备，包括：
    第一接收模块，用于接收第一目标配置信息，所述第一目标配置信息用于配置所述终端设备的定位参考信号PRS。
  37. 一种网络设备，包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的无线通信程序，所述无线通信程序被所述处理器执行时所述处理器实现如权利要求1-17中任一项所述的方法的步骤。
  38. 一种终端设备，包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的无线通信程序，所述无线通信程序被所述处理器执行时所述处理器实现如权利要求18-34中任一项所述的方法的步骤。
  39. 一种计算机可读介质，所述计算机可读介质上存储有无线通信程序， 所述无线通信程序被处理器执行时所述处理器实现如权利要求1-34中任一项所述的方法的步骤。
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