WO2023011349A1

WO2023011349A1 - Positioning reference signal processing method, terminal, and network side device

Info

Publication number: WO2023011349A1
Application number: PCT/CN2022/108954
Authority: WO
Inventors: 司晔; 邬华明; 王园园; 庄子荀
Original assignee: 维沃移动通信有限公司
Priority date: 2021-08-04
Filing date: 2022-07-29
Publication date: 2023-02-09
Also published as: CN115706914A

Abstract

The present application relates to the technical field of communications, and discloses a positioning reference signal processing method, a terminal, and a network side device. The positioning reference signal processing method in the embodiments of the present application comprises: a first terminal performs a first operation according to sub-band configuration information and/or bandwidth configuration information of a downlink positioning reference signal, wherein the first operation comprises at least one of the following: detecting the downlink positioning reference signal on at least one sub-band; and processing the downlink positioning reference signal on the at least one sub-band.

Description

Positioning reference signal processing method, terminal and network side equipment

Cross References to Related Applications

This application claims the priority of the Chinese patent application with the application number 202110893518.2 filed on August 4, 2021, and the title of the invention is "Positioning reference signal processing method, terminal and network side equipment", which is fully incorporated by reference into this application .

technical field

The present application belongs to the technical field of communications, and in particular relates to a positioning reference signal processing method, terminal and network side equipment.

Background technique

In the future communication system, the unlicensed frequency band (unlicensed band) can be used as a supplement to the licensed frequency band (licensed band) to help operators expand the service. Since unlicensed frequency bands are shared by multiple Radio Access Technologies (RATs), in some countries or regions, unlicensed frequency bands must comply with regulations when used to ensure that all devices can use the resources fairly , such as listen before talk (LBT), maximum channel occupancy time (Maximum Channel Occupancy Time, MCOT) and other rules.

Using the carrier of the unlicensed frequency band to transmit the positioning reference signal can further improve the positioning accuracy. The transmission of Positioning Reference Signal (PRS) in the unlicensed frequency band is mainly affected by LBT. For example, the base station can send the PRS only after the LBT is successful. In the frequency dimension, the PRS bandwidth in positioning is large. Due to the limitation of the basic bandwidth of LBT, the PRS bandwidth must also be divided into different bandwidths for LBT and transmission, and the frequency domain overhead is large. Therefore, it is necessary to consider how to reduce the positioning reference of unlicensed frequency bands. Transmission overhead of a signal in the frequency domain.

Contents of the invention

Embodiments of the present application provide a positioning reference signal processing method, a terminal, and a network side device, which can solve the problem of how to reduce the transmission overhead of positioning reference signals in an unlicensed frequency band in the frequency domain.

In a first aspect, a positioning reference signal processing method is provided, the method comprising:

The first terminal performs a first operation according to subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal;

Wherein, the first operation includes at least one of the following:

Detecting a downlink positioning reference signal on at least one subband;

The downlink positioning reference signal on at least one subband is processed.

In a second aspect, a positioning reference signal processing method is provided, the method comprising:

The second network device performs listen-before-talk LBT according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal, or sends the downlink positioning reference signal after the LBT is successful.

In a third aspect, a positioning reference signal processing method is provided, the method comprising:

The second terminal performs listen-before-talk LBT according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal, or sends the downlink positioning reference signal after the LBT succeeds.

In a fourth aspect, a positioning reference signal processing method is provided, the method comprising:

The first network device sends the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal to the second network device, the first terminal and/or the second terminal.

In a fifth aspect, a positioning reference signal processing method is provided, the method comprising:

The terminal sends the uplink positioning reference signal in the unconnected state according to the configuration information of the uplink positioning reference signal in the unconnected state;

Wherein, the configuration information of the uplink positioning reference signal in the unconnected state is received in the connected state or in a radio link control RRC release message.

In a sixth aspect, a positioning reference signal processing device is provided, the device comprising:

The first executing unit is configured to execute the first operation according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal;

Wherein, the first operation includes at least one of the following:

Detecting a downlink positioning reference signal on at least one subband;

The downlink positioning reference signal on at least one subband is processed.

In a seventh aspect, a positioning reference signal processing device is provided, and the device includes:

The third execution unit is configured to perform listen-before-talk LBT according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal, or send the downlink positioning reference signal after the LBT is successful.

In an eighth aspect, a positioning reference signal processing device is provided, and the device includes:

The fifth executing unit is configured to perform listen-before-talk LBT according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal, or send the downlink positioning reference signal after the LBT is successful.

In a ninth aspect, a positioning reference signal processing device is provided, and the device includes:

A seventh executing unit, configured to send subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal to the second network device, the first terminal and/or the second terminal.

In a tenth aspect, a positioning reference signal processing device is provided, and the device includes:

The tenth sending unit is configured to send the uplink positioning reference signal in the unconnected state according to the configuration information of the uplink positioning reference signal in the unconnected state;

Wherein, the configuration information of the uplink positioning reference signal in the unconnected state is received in the connected state or in an RRC release message.

In an eleventh aspect, a terminal is provided, the terminal includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor, and the program or instruction is executed by the processor When implementing the steps of the positioning reference signal processing method described in the first aspect, or implementing the steps of the positioning reference signal processing method described in the third aspect, or implementing the steps of the positioning reference signal processing method described in the fifth aspect .

In a twelfth aspect, a terminal is provided, including a processor and a communication interface, wherein the processor is configured to perform a first operation according to subband configuration information and/or bandwidth configuration information of a positioning reference signal PRS; wherein, the The first operation includes at least one of the following: detecting the PRS on at least one subband; and processing the PRS on at least one subband. Or, the processor is configured to perform listen-before-talk LBT according to the subband configuration information and/or bandwidth configuration information of the positioning reference signal PRS, or send the PRS after the LBT succeeds. Alternatively, the communication interface is configured to send the uplink positioning reference signal in the unconnected state according to the configuration information of the uplink positioning reference signal in the unconnected state; wherein, the configuration information of the uplink positioning reference signal in the unconnected state is in the connected state Received or received in an RRC Release message.

A thirteenth aspect provides a network-side device, the network-side device includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor, the program or instruction being executed by the When the processor is executed, the steps of the positioning reference signal processing method according to the second aspect are realized, or the steps of the positioning reference signal processing method according to the fourth aspect are realized.

In a fourteenth aspect, a network side device is provided, including a processor and a communication interface, wherein the processor is configured to perform listen-before-talk LBT according to the subband configuration information and/or bandwidth configuration information of the positioning reference signal PRS , or, send a PRS after a successful LBT. Alternatively, the communication interface is configured to send subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal to the second network device, the first terminal and/or the second terminal.

In a fifteenth aspect, a readable storage medium is provided, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the positioning reference signal processing method according to the first aspect is implemented Steps, or realize the steps of the positioning reference signal processing method according to the third aspect, or realize the steps of the positioning reference signal processing method according to the second aspect, or realize the positioning reference signal processing method according to the fourth aspect or implement the steps of the positioning reference signal processing method according to the fifth aspect.

In a sixteenth aspect, a chip is provided, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the above described in the first aspect The positioning reference signal processing method, or implement the positioning reference signal processing method as described in the third aspect, or implement the positioning reference signal processing method as described in the second aspect, or implement the positioning reference signal processing method as described in the fourth aspect , or implement the positioning reference signal processing method as described in the fifth aspect.

In a seventeenth aspect, a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the program/program product is executed by at least one processor to implement the method described in the first aspect The steps of the positioning reference signal processing method, or implementing the steps of the positioning reference signal processing method described in the third aspect, or implementing the steps of the positioning reference signal processing method described in the second aspect, or implementing the steps of the positioning reference signal processing method described in the fourth aspect The steps of the positioning reference signal processing method, or implementing the steps of the positioning reference signal processing method as described in the fifth aspect.

In this embodiment of the present application, the terminal detects and/or processes the downlink positioning reference signal on at least one subband according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal, which can effectively reduce the number of unlicensed frequency band positioning. The transmission overhead of the reference signal in the frequency domain.

Description of drawings

FIG. 1 is a structural diagram of a wireless communication system applicable to an embodiment of the present application;

FIG. 2 is one of the schematic flowcharts of the positioning reference signal processing method provided by the embodiment of the present application;

FIG. 3 is the second schematic flow diagram of the positioning reference signal processing method provided by the embodiment of the present application;

FIG. 4 is the third schematic flow diagram of the positioning reference signal processing method provided by the embodiment of the present application;

FIG. 5 is the fourth schematic flow diagram of the positioning reference signal processing method provided by the embodiment of the present application;

FIG. 6 is the fifth schematic flow diagram of the positioning reference signal processing method provided by the embodiment of the present application;

FIG. 7 is one of the schematic structural diagrams of a positioning reference signal processing device provided in an embodiment of the present application;

Fig. 8 is the second structural schematic diagram of the positioning reference signal processing device provided by the embodiment of the present application;

FIG. 9 is the third structural schematic diagram of the positioning reference signal processing device provided by the embodiment of the present application;

FIG. 10 is the fourth structural schematic diagram of the positioning reference signal processing device provided by the embodiment of the present application;

Fig. 11 is the fifth schematic structural diagram of the positioning reference signal processing device provided by the embodiment of the present application;

FIG. 12 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 13 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application;

FIG. 14 is one of the schematic structural diagrams of the network side equipment provided by the embodiment of the present application;

FIG. 15 is a second schematic structural diagram of a network side device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and "second" distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and/or" in the description and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

It is worth pointing out that the technology described in the embodiment of this application is not limited to the Long Term Evolution (Long Term Evolution, LTE)/LTE-Advanced (LTE-Advanced, LTE-A) system, and can also be used in other wireless communication systems, such as code Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency-Division Multiple Access (Single-carrier Frequency-Division Multiple Access, SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies. The following description describes the New Radio (NR) system for illustrative purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th generation (6 ^th Generation, 6G) communication system.

FIG. 1 shows a structural diagram of a wireless communication system to which this embodiment of the present application is applicable. The wireless communication system includes a terminal 11 , an access network device 12 and a core network device 13 . Wherein, the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (VUE), Pedestrian Terminal (PUE) and other terminal-side devices, wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart feet) bracelets, smart anklets, etc.), smart wristbands, smart clothing, game consoles, etc. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 11 . The access network device 12 may also be called a wireless access network device or a radio access network (Radio Access Network, RAN), and the access network device 12 may be a base station, and the base station may be called a node B, an evolved node B, an access network Point, Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (Extended Service Set, ESS), B Node, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN access point, WiFi node, Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved , the base station is not limited to specific technical terms. It should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited. The core network device 13 may also be called a core network (Core Network, CN) or a 5G core (5G core, 5GC) network, and the core network device 13 may include but not limited to at least one of the following: a core network node, a core network function, a mobile Management entity (Mobility Management Entity, MME), access management function (Access Management Function, AMF), session management function (Session Management Function, SMF), user plane function (User Plane Function, UPF), policy control function (Policy Control Function, PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Application Function (Application Function, AF), location server, etc. . It should be noted that, in the embodiment of the present application, only the core network equipment in the 5G system is taken as an example, but it is not limited thereto.

Using the carrier of the unlicensed frequency band to transmit the positioning reference signal can further improve the positioning accuracy. The transmission of PRS in the unlicensed frequency band is mainly affected by LBT. Therefore, in order to increase the probability of successful PRS transmission during positioning, it may be necessary to introduce the concept of PRS candidate positions. That is, if PRS is sent at multiple candidate locations, even if some candidate locations cannot send PRS due to LBT failure, the remaining candidate locations will have the opportunity to send PRS.

In the frequency dimension, due to the large PRS bandwidth in positioning and the limitation of the basic bandwidth of LBT, the PRS bandwidth must also be divided into different bandwidths for LBT and transmission. First of all, in order to reduce the frequency-domain LBT blind detection times of the UE and reduce the overhead of LBT indication, a special subband can be defined for the PRS. The subband dedicated to PRS can be larger than the conventional LBT bandwidth, and the base station can perform LBT and/or send PRS according to the granularity of the PRS subband. On the other hand, considering that the PRS in positioning can come from multiple base stations, the successful subband of multiple base station PRS LBT and the actual transmission bandwidth of PRS may be different, then this will definitely affect the assumption of the positioning frequency layer. further discussion. Among them, the PRS bandwidth is generally configured in the positioning frequency layer, and can also be understood as the bandwidth of the positioning frequency layer, which is configured by the LPP high-level parameter 'dl-PRS-ResourceBandwidth-r16'. The LBT bandwidth is generally the basic bandwidth for the base station or terminal to perform LBT in the frequency dimension, and is generally 20MHz. The PRS sub-bands can be understood as further blocks of the PRS bandwidth, and each block of bandwidth is a PRS sub-band.

The positioning reference signal processing method provided by the embodiment of the present application will be described in detail below through some embodiments and application scenarios with reference to the accompanying drawings.

Fig. 2 is one of the flow diagrams of the positioning reference signal processing method provided by the embodiment of the present application. As shown in Fig. 2, the method includes the following steps:

Step 200, the first terminal performs the first operation according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal;

Wherein, the first operation includes at least one of the following:

Detecting a downlink positioning reference signal on at least one subband;

The downlink positioning reference signal on at least one subband is processed.

In the scheme of this application, the downlink positioning reference signal is a downlink reference signal for positioning, and the downlink positioning reference signal includes PRS and other reference signals for positioning, including but not limited to Channel State Information-Reference Signal (CSIRS) , CSI-RS), synchronization signal block (Synchronization Signal and PBCH Block, SSB), tracking reference signal (Tracking Reference Signal, TRS), demodulation reference signal (D downlink positioning reference signal emulation reference signal, DMRS) at least one. It is worth pointing out that the embodiment of this application only uses PRS as an example to illustrate the positioning reference signal processing method. Other downlink reference signal implementation methods for positioning can also be realized in the same way, so no more examples will be given. .

It can be understood that, according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal, the first terminal detects whether the downlink positioning reference signal exists in at least one subband, and/or processes the downlink positioning in at least one subband reference signal.

Optionally, in the unlicensed frequency band, the first terminal performs the first operation according to subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal.

Wherein, the PRS is not limited to the PRS of Uu and the PRS of the sidelink (Sidelink).

The subbands in this application are downlink positioning reference signal subbands, which may be equally distributed subbands or sliding subbands.

Wherein, each downlink positioning reference signal subband represents a continuous downlink positioning reference signal transmission opportunity in the frequency domain. That is, the UE should assume that there is either no PRS transmission in the PRS subband, or continuous PRS transmission, and there is no situation of discontinuous PRS transmission. For example: if the PRS sub-band contains multiple LBT bandwidths, the PRS will be sent only if all the LBT bandwidths are successful in LBT.

The downlink positioning reference signal bandwidth includes at least one downlink positioning reference signal subband. Alternatively, the positioning frequency layer bandwidth includes at least one downlink positioning reference signal subband.

Optionally, the subband configuration information may be configured by the network device, pre-configured by the network device, configured by the second terminal, pre-configured by the second terminal, agreed by a protocol, or predefined by a protocol. For example, it can be obtained through LTE Positioning Protocol (LTE Positioning Protocol, LPP) configuration, or resource pool configuration in Sidelink.

Wherein, the network device may be a first network device, such as a location server, or a second network device, such as a base station. The second terminal is another UE in Sidelink, or a Road Side Unit (Road Side Unit, RSU), or a control node in Sidelink.

Optionally, after detecting the PRS on at least one subband, the first terminal processes the PRS on at least one subband. Alternatively, processing can also be equivalent to measuring.

Optionally, processing the PRS may be to cache the PRS first, and then perform frequency domain calculation. Alternatively, cache and process at the same time, or process directly.

Optionally, the subband configuration information includes at least one of the following:

subband bandwidth;

number of subbands;

Subband ID.

Optionally, the subband bandwidth includes an integer multiple of subbands. For example, the number of subbands included in the subband bandwidth may be 1 by default (protocol agreement), and the PRS bandwidth is equal to the subband bandwidth. At this time, the PRS subband configuration can be defaulted.

Optionally, the subband bandwidth is N physical resource blocks (Physical Resource Block, PRB). For example, the PRS is detected and/or processed at a granularity of 4 PRBs.

Optionally, the subband bandwidth is an integer multiple of the LBT bandwidth or equal to the LBT bandwidth. For example: the bandwidth of the PRS subband may be the bandwidth of the LBT by default. At this time, the PRS subband configuration can be defaulted.

Optionally, when configuring the number of subbands, the bandwidth of the subbands may not be configured.

The subband identifier is the identifier of the downlink positioning reference signal subband. For example, the subband identifier with the lowest frequency domain position is 0, and the highest is N-1 (assuming that the number of subbands is N); the N subbands are arranged from low to high, The frequency domain positions do not overlap, and adjacent subbands are continuous in frequency domain.

Optionally, the bandwidth configuration information includes at least one of the following:

PRS bandwidth;

PRS starting bandwidth position;

PRS subcarrier spacing (subcarrier space, SCS);

PRS center frequency point;

Locate the frequency layer reference point A (pointA).

Optionally, the detecting and/or processing the PRS on at least one subband includes:

Detecting and/or processing the downlink positioning reference signal at each downlink positioning reference signal candidate position at the subband granularity;

Wherein, one downlink positioning reference signal candidate position represents a downlink positioning reference signal transmission opportunity in the time domain.

Wherein, a PRS candidate position represents a PRS transmission opportunity in the time domain (time continuous).

The PRS candidate positions may be referred to as PRS temporal candidate positions. PRS time domain candidate positions can be configured per positioning frequency layer, per TRP (per TRP), per PRS resource set (per PRS resource set), and per PRS resource (per PRS resource) Configuration, per UE (per UE) configuration, or per UE group (per UE group) configuration.

Alternatively, the PRS time domain candidate positions are consistent with the subband configuration. That is, the subband configuration is also per positioning frequency layer (per positioning frequency layer) configuration, each TRP (per TRP) configuration, each PRS resource set (per PRS resource set) configuration, and each PRS resource (per PRS resource) Configuration, per UE (per UE) configuration, or per UE group (per UE group) configuration. It is consistent with the PRS time domain candidate location configuration.

If the PRS is periodic, a PRS period includes at least one PRS time domain candidate position.

In this embodiment of the present application, the terminal detects and/or processes the downlink positioning reference signal on at least one subband according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal, with subbands as the granularity. The success rate of receiving the positioning reference signal by the terminal in the unlicensed frequency band is improved, and at the same time, the transmission overhead of the positioning reference signal in the unlicensed frequency band can be effectively reduced in the frequency domain.

Optionally, the subband configuration information is configured in units of positioning frequency layers (per positioning frequency layer), or configured in units of transmitting and receiving points (per TRP), or configured in units of positioning reference signal resource sets (per PRS resource set) configuration, or in units of positioning reference signal resources (per PRS resource), or in units of terminals (per UE), or in units of terminal groups (per UE group).

Among them, configuration in units of terminals (per UE) or configurations in units of terminal groups (per UE group) is applicable to sidelink positioning.

Optionally, the subband configuration information is configured in one of the above units, which may be indicated by carrying an identifier of the corresponding unit in the subband configuration information.

Optionally, when the subband configuration information is configured in units of a positioning frequency layer, the positioning frequency layer satisfies at least one of the following:

The subband configurations of the downlink positioning reference signals in the positioning frequency layer are the same;

The positioning frequency layer reference point point A of the downlink positioning reference signal, the subcarrier spacing SCS, and the same bandwidth;

The actual bandwidth and/or actual subband position of the downlink positioning reference signal in the positioning frequency layer are the same or different;

In the same positioning frequency layer, the actual PRS bandwidth and/or actual sub-band positions corresponding to different periods or different PRS candidate positions are the same or different.

Optionally, (the UE should assume) that the PRS subband configurations of different transmitting ends (such as different TRPs or different UEs) in the positioning frequency layer are the same.

The same subband configuration includes at least one of the following items: the same subband bandwidth, the same frequency domain position of the subbands, and the same number of subbands.

Wherein, the actual bandwidth of the PRS is the bandwidth of the actual PRS transmission after the LBT succeeds.

Optionally, different PRS actual bandwidths and/or actual subband positions of different sending ends in the positioning frequency layer are different.

Optionally, the actual bandwidths and/or actual subband positions of the PRSs of different transmitting ends in the same positioning frequency layer are the same.

Optionally, in the same positioning frequency layer, the PRS actual bandwidth and/or actual subband positions corresponding to different periods or different PRS candidate positions are the same or different means: in the same positioning frequency layer, the same sending end, different periods or PRS actual bandwidths and/or actual subband positions corresponding to different PRS candidate positions are the same, or may be different.

In the embodiment of the present application, it is considered that the PRS may come from multiple base stations during positioning, and the successful subbands of the PRS LBT of multiple base stations and the actual transmission bandwidth of the PRS may be different, which has an impact on the assumption of the positioning frequency layer.

Optionally, the method also includes:

In the case that the subband configuration information does not exist or is default, the downlink positioning reference signal is detected and/or processed at the granularity of downlink positioning reference signal bandwidth or listen-before-talk LBT bandwidth.

That is, when the subband configuration information does not exist or is default, the PRS is detected and/or processed at the granularity of the PRS bandwidth or the LBT bandwidth.

Optionally, the detection and/or processing of the PRS at the granularity of the PRS bandwidth or the LBT bandwidth may be stipulated by the protocol, indicated by the network (for example, indicated by 1 bit), or independently determined by the terminal.

No subband configuration can also be understood as: when the subband bandwidth is equal to the PRS bandwidth, or the subband bandwidth is equal to the LBT bandwidth, there may be no subband configuration by default.

Optionally, the method also includes:

receiving first indication information, where the first indication information is used to indicate the availability of subbands;

The processing of the downlink positioning reference signal on at least one subband includes:

Process the downlink positioning reference signal on at least one available subband according to the first indication information.

Optionally, the first terminal receives the first indication information, determines at least one available subband according to the first indication information, and detects and/or processes the PRS on the at least one available subband.

Optionally, the first terminal determines at least one subband according to the subband configuration information and/or bandwidth configuration information of the PRS, and detects the PRS on the at least one subband; according to the first indication information, from the Determine at least one available subband in the at least one subband, and process the PRS on the at least one available subband.

Wherein, the availability of the sub-band is related to whether the LBT is successful or not.

Further, the availability of the PRS subbands may be represented in the form of a bitmap. The length of the Bitmap is equal to the number of PRS subbands. The bit in the bitmap is '1' indicating that the PRS subband is available (PRS subband LBT is successful), and '0' indicates that the PRS subband is not available (PRS subband LBT is unsuccessful).

Optionally, the validity time or validity period of the first indication information is at least one of the following:

the duration of a candidate position;

Multiple candidate position durations for one cycle;

Within the channel occupation time COT duration Duration;

The COT duration is indicated as a downlink (Downlink, DL) and/or flexible (flexible) symbol.

Optionally, the first indication information includes at least one of the following:

Sending and receiving point TRP identification;

Positioning frequency layer identification of positioning frequency layer;

terminal UE identification;

terminal group UE group identifier;

Downlink positioning reference signal resource PRS resource identifier;

Downlink positioning reference signal resource set PRS resource set identifier.

Optionally, the first indication information is used to indicate the subband availability of a positioning reference signal corresponding to the identifier.

Optionally, the first indication information may also indicate subband availability of multiple positioning reference signals corresponding to the identifiers.

Optionally, multiple identifiers are included in the first indication information.

Optionally, in the first indication information, multiple subband availability indications corresponding to the identifiers are arranged, and the availability indications corresponding to each identifier are in corresponding positions. According to the arrangement, the terminal acquires the subband availability indication under the corresponding identifier. Optionally, the arrangement may be obtained by at least one of protocol agreement and network (pre)configuration.

For example: the serving base station indicates the availability of subbands corresponding to multiple TRPs, or the availability of candidate positions in the time domain or COT indication. After multiple TRP LBTs, send the above information to the serving base station. The indication of the serving base station may carry the corresponding TRP ID; or, the protocol stipulates or the network (pre) configures the arrangement of multiple TRPs, and the serving base station indicates the subband availability of the corresponding TRP according to the above method, or the availability of candidate positions in the time domain or COT indication (eg, via group common DCI).

Optionally, the receiving the first indication information includes one of the following:

receiving the first indication information before each candidate position;

receiving the first indication information before multiple candidate positions in each period;

receiving the first indication information after caching the PRSs of multiple candidate positions;

receiving the first indication information in an authorized frequency band;

The first indication information is received, where the first indication information is carried in the payload after the second network device or the second terminal succeeds in LBT.

Optionally, the first indication information is indicated by a network device or indicated by a second terminal.

Among them, the network indication includes but not limited to radio resource control (Radio Resource Control, RRC), media access control layer control unit (Media Access Control-Control Element, MAC CE), (Downlink Control Information, DCI), LTE positioning protocol LPP, broadcast at least one of the messages;

The second terminal indication includes but is not limited to: at least one of first-level sidelink control information (Sidelink Control Information, SCI), second-level SCI, and PC5-RRC.

In the embodiment of the present application, the terminal processes the PRS on at least one available subband according to the first indication information, which can further reduce the transmission overhead of the positioning reference signal in the unlicensed frequency band in the frequency domain.

Optionally, the method also includes:

If the first indication information is not received, perform blind detection on downlink positioning reference signals of different subbands;

According to the blind detection result, the downlink positioning reference signals of different subbands are processed.

It can be understood that if the first terminal does not receive the first indication information, that is, the network device or the second terminal does not indicate the availability of PRS subbands, then the first terminal performs blind detection on PRS of different subbands, and according to The result of blind detection is to process PRSs of different subbands.

Optionally, the method also includes:

Indication information for indicating whether there is phase consistency between adjacent subbands is received.

Optionally, the method also includes:

In the case that there is phase consistency between adjacent subbands, the downlink positioning reference signals of adjacent subbands are jointly processed.

Wherein, joint processing may also be referred to as aggregation processing, which may be understood as: measuring PRSs of multiple subbands at the same time, performing aggregation processing on PRSs, and increasing effective bandwidth.

The separate processing can be understood as: just measure the PRS of multiple subbands at the same time, but do not perform aggregation processing, and calculate the PRS of each subband separately, without increasing the effective bandwidth.

Optionally, if there is no phase consistency between adjacent subbands, the PRSs of adjacent subbands are processed separately.

Optionally, the indication information used to indicate whether there is phase consistency between adjacent subbands is carried in the first indication information.

Then the processing of the downlink positioning reference signal on at least one available subband includes:

In the case that there is phase consistency between the adjacent available subbands, the downlink positioning reference signals of the adjacent available subbands are jointly processed.

Optionally, the indication information for indicating whether there is phase consistency between adjacent subbands may also be indicated in other information or signaling, not indicated in the same information or signaling as the availability of subbands.

In the embodiment of the present application, when the adjacent subbands have phase consistency, the terminal jointly processes the PRSs of the adjacent subbands, which can further reduce the frequency domain overhead of positioning reference signal transmission in the unlicensed frequency band.

Optionally, the method also includes:

If the actual bandwidths and/or actual subband positions of the downlink positioning reference signals corresponding to different periods or different candidate positions are different, the first terminal does not jointly process the downlink positioning reference signals of multiple subbands.

That is, for PRSs of multiple subbands of different periods or different candidate positions, if the actual bandwidths of the PRSs and/or the actual positions of the subbands are different, the terminal does not expect to jointly process the PRSs of the multiple subbands.

Optionally, the transmission conditions of the downlink positioning reference signal subbands at different candidate positions are the same, different or independent;

Wherein, the different candidate positions are multiple candidate positions within one period, or multiple candidate positions within one time window, or multiple candidate positions corresponding to the aperiodic downlink positioning reference signal;

The downlink positioning reference signal subband transmission conditions of the different candidate positions are related to the LBT result.

Optionally, the first terminal should assume that the PRS transmission conditions on the PRS subbands of different candidate positions are one of the following:

The transmission conditions of the PRS subbands at different candidate positions are the same. For example: the PRS transmission situation of multiple subbands in candidate position 1 is the same as the PRS transmission situation of multiple subbands in candidate position 2.

The PRS subband transmission conditions of different candidate positions are different, including one of the following:

(1) The PRS subband transmission conditions of different candidate positions are correlated, that is, the subbands with successful PRS transmission at the later candidate positions include the subbands with successful PRS transmission at the earlier candidate positions.

For example, there are 4 subbands in total, and the subbands with successful transmission in candidate position 1 are 0, 2, and 3; then the candidate positions after candidate position 1 must be successfully transmitted in subbands 0, 2, and 3, and may be successfully transmitted in subband 1 . Then, in the candidate position 2, the subbands for which PRS transmission is successful may be 0, 2, 3 or 0, 1, 2, 3. Then in candidate position 2, the UE only needs to detect whether PRS transmission exists in subband 1.

In the later candidate positions, the UE only needs to detect the subbands where the PRS has not been successfully transmitted.

(2) The transmission conditions of PRS subbands at different candidate positions are completely independent.

For example: there are 4 sub-bands in total, and the sub-bands for which candidate position 1 is successfully transmitted are 0, 2, and 3; then the candidate positions after candidate position 1 may still transmit successfully or fail in any sub-band.

Optionally, the frequency of the at least one subband is continuous.

Optionally, the terminal processes the PRS on at least one available subband, where the frequency of the at least one available subband is continuous. It is restricted that only the PRS of the continuous sub-band Sub-band can be sent.

Optionally, on the basis of the foregoing embodiments, the method further includes:

receiving second indication information, where the second indication information is used to indicate joint processing or separate processing of downlink positioning reference signals of multiple subbands;

According to the second indication information, joint processing or separate processing is performed on the downlink positioning reference signals of multiple subbands.

Optionally, the second indication information includes at least one of the following:

Sending and receiving point identification;

Positioning frequency layer identification;

terminal identification;

terminal group identification;

Positioning reference signal resource identifier;

Positioning reference signal resource set identifier.

That is, the second indication information includes at least one of the above identifiers, and is used to indicate whether to perform joint processing or separate processing on the PRS subbands under the corresponding identifier.

Optionally, the second indication information may be indicated by a network device or indicated by a second terminal.

In the embodiment of the present application, the terminal can further reduce the frequency domain overhead of positioning reference signal transmission in the unlicensed frequency band according to the PRS subband processing indication whether to perform joint processing on the PRS of multiple subbands.

Reporting the downlink positioning reference signal measurement result; wherein, the downlink positioning reference signal measurement result includes an indication of the downlink positioning reference signal subband associated with the downlink positioning reference signal measurement result;

Wherein, the indication of the downlink positioning reference signal subband associated with the downlink positioning reference signal measurement result includes at least one of the following:

Downlink positioning reference signal subband identification;

Downlink positioning reference signal candidate location identification;

A time stamp associated with the downlink positioning reference signal measurement result;

Whether the downlink positioning reference signal measurement result has been jointly processed.

The positioning frequency layer identifier corresponding to the downlink positioning reference signal measurement result, or the sending and receiving point identifier, or the positioning reference signal resource set identifier, or the positioning reference signal resource identifier, or the terminal identifier, or the terminal group identifier.

Optionally, report the PRS measurement result; wherein, the PRS measurement result includes an indication of the PRS subband associated with the PRS measurement result;

Wherein, the indication of the PRS subband associated with the PRS measurement result includes at least one of the following:

PRS subband identification;

PRS candidate location identification;

The time stamp time stamp associated with the PRS measurement result;

Whether the PRS measurement results have been jointly processed;

The identification of the positioning frequency layer corresponding to the PRS measurement result, or the identification of the sending and receiving point, or the identification of the positioning reference signal resource set, or the identification of the positioning reference signal resource, or the identification of the terminal, or the identification of the terminal group.

Wherein, the PRS subband identifier indicates that the measurement result is calculated and obtained based on these/a PRS subband.

The PRS time-domain candidate position identifier indicates that the measurement result is obtained according to the PRS calculation of these/one PRS time-domain candidate position.

Optionally, the reported measurement result may also indicate whether aggregation processing has been performed. For example, multiple PRS subbands have discontinuous subbands in the frequency domain, and whether the UE performs aggregation processing on the discontinuous subbands in the frequency domain.

The embodiment of the present application improves the success rate of receiving the positioning reference signal by the terminal in the unlicensed frequency band and reduces the transmission overhead of the positioning reference signal in the unlicensed frequency band.

Fig. 3 is the second schematic flow diagram of the positioning reference signal processing method provided by the embodiment of the present application. As shown in Fig. 3, the method includes:

Step 300, the second network device performs listen-before-talk LBT according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal, or sends the downlink positioning reference signal after the LBT is successful.

In the solution of this application, the downlink positioning reference signal is a reference signal for positioning, including PRS and other reference signals for positioning. The embodiment of the present application only uses the PRS as an example to illustrate the positioning reference signal processing method. Other reference signal implementation methods for positioning can also be realized in the same manner, so examples will not be described one by one.

Optionally, the second network device is a serving base station and/or a neighboring cell base station.

subband bandwidth;

number of subbands;

Subband ID.

PRS bandwidth;

PRS starting bandwidth position;

PRS subcarrier spacing;

PRS center frequency point;

Locate frequency layer reference point A pointA.

Optionally, the subband configuration information and/or bandwidth configuration information of the positioning reference signal PRS may be determined in one of the following ways:

The subband configuration information and/or bandwidth configuration information is preconfigured or predefined;

The second network device determines subband configuration information and/or bandwidth configuration information, and sends the subband configuration information and/or bandwidth configuration information to the first network device, and the first network device then configures the first terminal;

The first network device determines multiple sets of subband configuration information and/or bandwidth configuration information, and sends the multiple sets of subband configuration information and/or bandwidth configuration information to the second network device. The second network device determines specific subband configuration information and/or bandwidth configuration information, feeds it back to the first network device, and then the first network device sends the subband configuration information and/or bandwidth configuration information to the first terminal.

Optionally, the second network device performs listen-before-talk LBT on at least one subband according to subband configuration information and/or bandwidth configuration information of the positioning reference signal PRS.

Optionally, the second network device performs listen-before-talk LBT on at least one subband according to the subband configuration information and/or bandwidth configuration information of the positioning reference signal PRS, and if the detected channel is empty, that is, the LBT is successful, then Positioning reference signals are transmitted in corresponding subbands.

In this embodiment of the application, the second network device performs listen-before-talk LBT according to the subband configuration information and/or bandwidth configuration information of the positioning reference signal PRS, or sends the PRS after the LBT is successful, which can effectively reduce the unlicensed frequency band The transmission overhead of the positioning reference signal in the frequency domain.

Optionally, the sending the PRS after the LBT succeeds includes:

In a case where the downlink positioning reference signal subband bandwidth includes at least one LBT bandwidth and all LBT bandwidths within the downlink positioning reference signal subband range have LBT successfully, the downlink positioning reference signal is sent.

Optionally, when the PRS subband bandwidth includes at least one LBT bandwidth and all LBT bandwidths within the PRS subband range have LBT successfully, the PRS is sent. That is, the second network device sends the PRS only when all the LBT bandwidths within the PRS subband range are successfully LBTed.

Optionally, the performing the listen-before-talk LBT, or sending the downlink positioning reference signal after the LBT is successful, includes:

Perform LBT at the granularity of downlink positioning reference signal subbands, or send a PRS after the LBT succeeds.

Optionally, the second network device performs LBT and/or sends PRS at the granularity of PRS subbands, and sends PRS of at least one subband at a time (simultaneously).

Optionally, if the PRS subband bandwidth is the same as the LBT bandwidth (for example: a case with no PRS subband configuration by default), the second network device performs LBT at the granularity of the LBT bandwidth, or sends a PRS after the LBT is successful.

Optionally, if the PRS subband bandwidth is the same as the PRS bandwidth (for example, another case is configured without a PRS subband by default), the second network device performs LBT at the granularity of the PRS bandwidth, or sends a PRS after the LBT is successful. That is, the second network device can send the PRS only if all the LBT bandwidths within the PRS bandwidth are LBT successfully.

Optionally, the LBT of multiple PRS subbands is successful, and only when the frequency domains of the multiple PRS subbands are continuous, the second network device sends the PRS.

Optionally, the method also includes:

Reporting the successful subband information of the downlink positioning reference signal transmission to the first network device;

Wherein, the downlink positioning reference signal transmission success subband information includes at least one of the following:

Downlink positioning reference signal subband identification;

Downlink positioning reference signal candidate location identification;

A time stamp associated with the downlink positioning reference signal measurement result.

Optionally, the method also includes:

Reporting the successful subband information of the PRS transmission to the first network device;

Wherein, the PRS transmission success subband information includes at least one of the following:

PRS subband identification;

PRS candidate location identification;

The timestamp associated with the PRS measurement result.

Optionally, the method also includes:

When the second network device determines the subband configuration information and/or bandwidth configuration information, the second network device sends the subband configuration information and/or bandwidth configuration information to the first network device.

That is, if the second network device independently determines the PRS subband configuration, the second network device sends the subband configuration information to the first network device (such as a location server).

Optionally, the method also includes:

If the subband configuration information does not exist or is default, the second network device performs LBT at the granularity of downlink positioning reference signal bandwidth or LBT bandwidth, or sends the downlink positioning reference signal after successful LBT.

It can be understood that if there is no PRS subband configuration (for example, when there is no PRS subband configuration by default), the second network device performs LBT and/or sends PRS according to the PRS bandwidth, or performs LBT bandwidth and/or sends PRS according to the LBT bandwidth.

Optionally, the behavior of the second network device performing LBT at the granularity of PRS bandwidth or LBT bandwidth or sending PRS after LBT is successful may be instructed by the first network device, agreed upon in a protocol, or determined independently.

Optionally, the method also includes:

the second network device sends the first indication information to the first terminal and/or the first network device;

Wherein, the first indication information is used to indicate the availability of subbands, or,

The first indication information is used to indicate the availability of subbands and whether adjacent subbands have phase consistency.

In an implementation manner, the second network device indicates the availability of subbands to the first terminal and/or the first network device.

In an implementation manner, the second network device indicates to the first terminal and/or the first network device the availability of subbands and whether adjacent subbands have phase consistency. If the second network device indicates to the first terminal that adjacent subbands have phase consistency, the first terminal will jointly process the PRSs of multiple adjacent available subbands.

In this embodiment of the present application, the second network device sends the PRS subband availability indication to the first terminal and/or the first network device, which may enable the terminal to perform PRS subbands on at least one available subband according to the PRS subband availability indication. The processing can further reduce the transmission overhead of the positioning reference signal in the unlicensed frequency band in the frequency domain.

Optionally, the method also includes:

the second network device sends second indication information to the first terminal and/or the first network device;

The second indication information is used to indicate joint processing or separate processing of downlink positioning reference signals of multiple subbands.

In this embodiment of the present application, the second network device sends the PRS subband processing instruction to the first terminal and/or the first network device, which can make the first terminal determine whether to combine the PRS of multiple subbands according to the PRS subband processing instruction. Processing can further reduce the frequency domain overhead of positioning reference signal transmission in the unlicensed frequency band.

FIG. 4 is a third schematic flowchart of a positioning reference signal processing method provided in an embodiment of the present application. As shown in Figure 4, the method includes:

Step 400, the second terminal performs listen-before-talk LBT according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal, or sends the downlink positioning reference signal after the LBT is successful.

In this embodiment of the present application, the second terminal may be another UE in the Sidelink, or an RSU, or a control node in the Sidelink.

subband bandwidth;

number of subbands;

Subband ID.

PRS bandwidth;

PRS starting bandwidth position;

PRS subcarrier spacing;

PRS center frequency point;

Locate frequency layer reference point A pointA.

The second terminal determines subband configuration information and/or bandwidth configuration information, and sends the subband configuration information and/or bandwidth configuration information to the first network device, and the first network device reconfigures it to the first terminal;

The first network device determines multiple sets of subband configuration information and/or bandwidth configuration information, and sends the multiple sets of subband configuration information and/or bandwidth configuration information to the second terminal. The second terminal determines specific subband configuration information and/or bandwidth configuration information, feeds it back to the first network device, and then the first network device sends the subband configuration information and/or bandwidth configuration information to the first terminal.

Optionally, the second terminal performs listen-before-talk LBT on at least one subband according to subband configuration information and/or bandwidth configuration information of the positioning reference signal PRS.

Optionally, according to the subband configuration information and/or bandwidth configuration information of the positioning reference signal PRS, the second terminal performs listen-before-talk LBT on at least one subband, and if it detects that the channel is empty, that is, the LBT is successful, then in The corresponding subbands transmit positioning reference signals.

In the embodiment of the present application, the second terminal performs listen-before-talk LBT according to the subband configuration information and/or bandwidth configuration information of the positioning reference signal PRS, or sends the PRS after the LBT is successful, which can effectively reduce the unlicensed frequency band positioning. The transmission overhead of the reference signal in the frequency domain.

Optionally, the sending the downlink positioning reference signal S after the LBT succeeds includes:

In a case where the downlink positioning reference signal subband bandwidth includes at least one LBT bandwidth and all LBT bandwidths within the downlink positioning reference signal subband range have LBT successfully, the second terminal sends the downlink positioning reference signal.

That is, the second terminal sends the PRS only when all the LBT bandwidths within the PRS subband range are successfully LBTed.

Optionally, the sending is performed by listening first and speaking LBT, or sending a PRS after the LBT is successful, including:

The downlink positioning reference signal subband is used as a granularity to perform LBT, or send the downlink positioning reference signal after the LBT is successful.

Optionally, the second terminal performs LBT at the granularity of the PRS subbands, or sends the PRS at the granularity of the PRS subbands after the LBT is successful, and sends the PRS of at least one subband at a time (simultaneously).

Optionally, if the PRS subband bandwidth is the same as the LBT bandwidth (for example: a case with no PRS subband configuration by default), the second terminal performs LBT at the granularity of the LBT bandwidth, or sends a PRS after the LBT is successful.

Optionally, if the PRS sub-band bandwidth is the same as the PRS bandwidth (for example, another case where there is no PRS sub-band configuration by default), the second terminal performs LBT at the granularity of the PRS bandwidth, or sends the PRS after the LBT is successful. That is, the second terminal can send the PRS only if all the LBT bandwidths within the PRS bandwidth are LBT successfully.

Optionally, the LBT of multiple PRS subbands succeeds, and only when the frequency domains of the multiple PRS subbands are continuous, the second terminal sends the PRS.

Optionally, the method also includes:

The second terminal reports the successful subband information of the downlink positioning reference signal transmission to the first network device;

Downlink positioning reference signal subband identification;

Downlink positioning reference signal candidate location identification;

Optionally, the method also includes:

When the second terminal determines the subband configuration information and/or bandwidth configuration information, the second terminal sends the subband configuration information and/or bandwidth configuration information to the first network device.

That is, if the second terminal independently determines the PRS subband configuration, the second terminal sends the subband configuration information to the first network device (such as a location server).

Optionally, the method also includes:

If the subband configuration information does not exist or is default, the second terminal sends the downlink positioning reference signal bandwidth or LBT bandwidth as granularity, and sends the downlink positioning reference signal after performing LBT or LBT successfully.

It can be understood that if there is no PRS subband configuration (for example, when there is no PRS subband configuration by default), the second terminal performs LBT and/or sends PRS according to the PRS bandwidth, or performs LBT bandwidth and/or sends PRS according to the LBT bandwidth.

Optionally, the method also includes:

the second terminal sends the first indication information to the first terminal and/or the first network device;

Wherein, the first indication information is used to indicate the availability of downlink positioning reference signal subbands, or,

Optionally, whether adjacent subbands have phase consistency may also be indicated separately in other information or signaling, not necessarily indicated in the same information or signaling as availability.

In an implementation manner, the second terminal indicates the availability of the subband to the first terminal and/or the first network device.

In an implementation manner, the second terminal indicates to the first terminal and/or the first network device the availability of subbands and whether adjacent subbands have phase consistency. If the second terminal indicates that adjacent subbands have phase consistency, the first terminal will jointly process the PRSs of multiple subbands.

In this embodiment of the present application, the second terminal sends the availability indication of the PRS subband to the first terminal and/or the first network device, so that the terminal performs PRS on at least one available subband according to the availability indication of the PRS subband. Processing can further reduce the transmission overhead of the positioning reference signal in the unlicensed frequency band in the frequency domain.

Optionally, the method also includes:

the second terminal sends second indication information to the first terminal and/or the first network device;

In this embodiment of the present application, the second terminal sends the PRS subband processing instruction to the first terminal and/or the first network device, so that the terminal can determine whether to jointly process the PRS of multiple subbands according to the PRS subband processing instruction. The frequency domain overhead of positioning reference signal transmission in unlicensed frequency bands is further reduced.

FIG. 5 is a fourth schematic flowchart of a positioning reference signal processing method provided in an embodiment of the present application. As shown in Figure 5, the method includes:

Step 500, the first network device sends subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal to the second network device, the first terminal and/or the second terminal.

Optionally, the first network device is a location server.

The location server can be a location management function (Location Management Function, LMF) network element or an Evolved Serving Mobile Location Center (Evolved Serving Mobile Location Center, E-SMLC) or other servers with a location calculation function.

Optionally, the first network device determines subband configuration information and/or bandwidth configuration information, and sends the subband configuration information and/or bandwidth configuration information to the second network device, the first terminal and/or the second terminal.

Optionally, the first network device determines multiple sets of subband configuration information and/or bandwidth configuration information, and sends the multiple sets of subband configuration information and/or bandwidth configuration information to the second network device or the second terminal. The second network device or the second terminal determines specific subband configuration information and/or bandwidth configuration information, feeds back to the first network device, and then the first network device sends the subband configuration information and/or bandwidth configuration information to the first terminal .

In this embodiment of the present application, the first network device sends the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal to the second network device, the first terminal and/or the second terminal, which can improve the positioning reference signal. Transmission efficiency, reducing transmission overhead.

Optionally, the method also includes at least one of the following:

receiving a downlink positioning reference signal measurement result reported by the first terminal;

receiving the downlink positioning reference signal transmission success subband information reported by the second network device or the second terminal;

receiving subband configuration information and/or bandwidth configuration information sent by the second network device or the second terminal;

receiving first indication information sent by the second network device or the second terminal;

receiving second indication information sent by the second network device or the second terminal;

sending first indication information to the first terminal;

Send the second indication information to the first terminal.

Wherein, the first indication information is used to indicate the availability of subbands, or the first indication information is used to indicate the availability of subbands and whether adjacent subbands have phase consistency;

The second indication information is used to indicate to perform joint processing or separate processing on the PRSs of multiple subbands.

Sending and receiving point TRP identification;

Positioning frequency layer identification of positioning frequency layer;

terminal UE identification;

terminal group UE group identifier;

Downlink positioning reference signal resource PRS resource identifier;

Downlink positioning reference signal resource set PRS resource set identifier.

Sending and receiving point identification;

Positioning frequency layer identification;

terminal identification;

terminal group identification;

Downlink positioning reference signal resource identifier;

The ID of the downlink positioning reference signal resource set.

Optionally, the PRS measurement result includes an indication of the PRS subband associated with the PRS measurement result;

PRS subband identification;

PRS candidate position identification;

The time stamp time stamp associated with the PRS measurement result;

Whether the PRS measurement result has undergone joint processing.

Optionally, the PRS transmission success subband information includes at least one of the following:

PRS subband identification;

PRS candidate location identification;

The timestamp associated with the PRS measurement result.

It should be noted that, for the understanding of the positioning reference signal processing method in the embodiment of the present application, reference may be made to the description in the foregoing embodiments, and details are not repeated here.

FIG. 6 is the fifth schematic flowchart of the positioning reference signal processing method provided by the embodiment of the present application. As shown in Figure 6, the method includes:

Step 600, the terminal sends the uplink positioning reference signal in the unconnected state according to the configuration information of the uplink positioning reference signal in the unconnected state;

In this embodiment of the present application, the uplink positioning reference signal is an uplink reference signal for positioning, including but not limited to at least one of Sounding reference signal (Sounding reference signal, SRS), SRS for positioning, and PRACH. It is worth pointing out that the embodiment of the present application only uses SRS as an example to illustrate the positioning reference signal processing method, and other implementations of uplink reference signals for positioning can also be realized in the same way, so no more examples are given here. .

Optionally, the configuration information of the uplink positioning reference signal includes but is not limited to at least one of the following: subband configuration information and/or bandwidth configuration information of the uplink positioning reference signal, time domain position configuration information, frequency domain position configuration information, Time-frequency resource pattern configuration information, spatial beam relationship configuration information (such as spatial relationship reference signal, etc.), path loss configuration information (such as path loss reference signal, etc.), timing advance configuration information (such as timing advance timer configuration, etc.) , validity configuration information (such as validity threshold, etc.) and so on.

Wherein, the unconnected state refers to an idle state and/or an inactive state.

Optionally, the configuration information of the uplink positioning reference signal is indicated by the second network device.

Optionally, the sending the uplink positioning reference signal includes:

The terminal sends the uplink positioning reference signal by means of beam scanning.

Wherein, beam scanning means that beam directions of different uplink positioning reference signal resources are different.

The way of beam scanning can be stipulated by the agreement. For example, the agreement stipulates that in the non-connected state, the terminal sends the uplink positioning reference signal in a beam scanning manner.

Optionally, the terminal sends the uplink positioning reference signal by means of beam scanning, including:

According to the network instruction, the terminal sends the uplink positioning reference signal by means of beam scanning;

Wherein, the sending of the uplink positioning reference signal by the terminal in a beam scanning manner according to the network instruction includes one of the following:

In the case where the spatial beam relationship of the uplink positioning reference signal is not indicated, the terminal sends the uplink positioning reference signal in a beam scanning manner;

If the spatial beam relationship of the uplink positioning reference signal is not indicated and the transmission mode of beam scanning is indicated, the terminal transmits the uplink positioning reference signal in the beam scanning mode;

In the case of indicating the transmission mode of beam scanning, the uplink positioning reference signal is transmitted.

Wherein, if the spatial beam relationship of the uplink positioning reference signal is not indicated, the terminal may have multiple default ways to send the uplink positioning reference signal, such as sending by beam scanning or beam repetition. Here, it further indicates which way the terminal sends, for example, from beam scanning or beam repetition, indicating that the uplink positioning reference signal is sent in a beam scanning way.

Optionally, the sending the uplink positioning reference signal includes:

The terminal judges whether the configuration information of the uplink positioning reference signal in the unconnected state is valid according to the validity condition of the configuration of the uplink positioning reference signal, wherein the validity condition of the configuration of the uplink positioning reference signal includes at least one of the following: timing advance (Timing Addvance, TA) is valid; the spatial beam relationship is valid; the area is valid; the time is valid; the path loss reference signal is valid.

Optionally, the area is valid means: if the terminal is in a pre-configured/defined area (such as a cell that receives an RRC release message or an uplink positioning reference signal, or a plurality of predefined cells), the area is valid (uplink positioning reference signal signal configuration is in the valid area). Optionally, if the terminal moves out of a certain pre-configured/defined area (such as the cell receiving the RRC release message or the uplink positioning reference signal, or a plurality of predefined cells), the area is invalid. Optionally, if the area fails, the configuration of the uplink positioning reference signal becomes invalid.

Optionally, valid time means: the time is valid if the nearest uplink positioning reference signal configuration/update command (such as RRC release message) does not exceed a certain pre-configured/defined time threshold/timer (uplink positioning reference signal configuration during the effective time). Optionally, if the nearest uplink positioning reference signal configuration/update command (such as RRC release message) exceeds a certain pre-configured/defined time threshold/timer, then the time is invalid. Optionally, if the time expires, the configuration of the uplink positioning reference signal becomes invalid.

Optionally, the time validity can be applied to some specific configurations in the uplink positioning reference signal configurations, such as TA, or spatial relationship reference signals, etc.; or, it can be applied to all the uplink positioning reference signal configurations.

Optionally, the validity of the path loss reference signal refers to: if the path loss reference signal meets the measurement boundary condition, the path loss reference signal configuration is valid; if the path loss reference signal does not meet the measurement boundary condition, then the path loss reference signal configuration becomes invalid.

Optionally, only if all the validity conditions are satisfied, that is, the validity of the timing advance (Timing Addvance, TA), the validity of the spatial beam relationship, the validity of the area, the validity of the time, and the validity of the path loss reference signal are all satisfied, then the uplink positioning reference signal configuration Valid, that is, the configuration information of the uplink positioning reference signal in the disconnected state is valid. Or, if any validity condition is not satisfied, the configuration of the uplink positioning reference signal becomes invalid, that is, the configuration information of the uplink positioning reference signal in the disconnected state becomes invalid.

When the configuration information of the uplink positioning reference signal in the unconnected state is valid, send the uplink positioning reference signal according to the configuration information of the uplink positioning reference signal in the unconnected state; or, in the uplink positioning in the unconnected state When the configuration information of the reference signal becomes invalid, the terminal terminates sending the uplink positioning reference signal using the configuration information of the unconnected uplink positioning reference signal or releases the invalid configuration of the positioning reference signal.

Optionally, if the uplink positioning configuration fails (such as timing advance failure, spatial beam relationship failure, area failure, time failure, or at least one of path loss reference signal failure), the terminal notifies the network device of the configuration failure information (such as the serving base station and/or location server), the network device notifies other base stations participating in positioning to release the uplink positioning reference signal configuration. Optionally, the failure information includes failure reasons, such as including at least one of the following: timing advance failure, spatial beam relationship failure, area failure, time failure, or path loss reference signal failure. For example, if the spatial beam relationship fails, the terminal notifies the network device of the failure information, and the network device then notifies other base stations participating in positioning, and releases the uplink positioning reference signal configuration. Optionally, the terminal may notify the network side of failure information by transmitting small data or initiating a connection to enter a connected state.

Optionally, some failed information network equipment has the same understanding as the terminal (such as time failure), and when such an event occurs (such as time failure), the network equipment can directly notify other base stations participating in positioning to release the uplink positioning reference signal Configuration without terminal notification invalidation.

Optionally, when the network device is a serving base station, the serving base station notifies other base stations participating in positioning to release the uplink positioning reference signal configuration, and the notification may be relayed through the location server (for example, the serving base station notifies the location server, and then the location server notifies other base stations), or Can be notified directly.

Optionally, the method also includes:

The terminal judges the validity of the timing advance TA and/or the spatial beam relationship according to the measurement result of the target reference signal and/or the change of the measurement result;

In a case where the measurement result and/or the change of the measurement result exceeds or falls below a target threshold, it is determined that the timing advance TA and/or the spatial beam relationship configuration is invalid.

Optionally, the change of the measurement result of the target reference signal refers to: when the current measurement result is different from when the UE receives the latest uplink positioning reference signal configuration, or when the UE just enters a non-connected state configuration, or when the UE just receives a timing advance command or When configured, the measurement results change.

Optionally, for the effectiveness of the timing advance TA, in addition to judging by the target reference signal measurement result or the change of the measurement result, it can also be judged by the TA timer Timing alignment timer. The TA timer can start from the latest TA command or the configuration of the uplink positioning reference signal, and the TA timer can be stipulated in the protocol or indicated by the network (such as included in the configuration of the uplink positioning reference signal). When the TA timer expires, the TA becomes invalid. Optionally, when the TA timer expires or any condition of the measurement result/change of the target reference signal is satisfied, the TA becomes invalid.

Optionally, the target threshold may be specified by the protocol or indicated by the network (for example, included in the uplink positioning reference signal configuration).

Optionally, the measurement results include at least one of the following:

Reference Signal Receiving Power (RSRP);

Reference Signal Received Quality (Reference Signal Received Quality, RSRQ);

Time Difference of Arrival (TDOA);

Reference signal timing;

RSRP corresponding to the first path of the reference signal.

Optionally, the target reference signal includes at least one of the following:

A reference signal or reference signal group configured for TA validity judgment;

Spatial relationship reference signal or reference signal group configured for uplink positioning reference signal;

A path loss reference signal or reference signal group configured for the uplink positioning reference signal;

A reference signal or reference signal group associated with the system information block type 1 SIB1.

Optionally, the target reference signal includes but is not limited to: at least one of SSB, CSI-RS, and PRS.

Optionally, the target reference is a reference signal of a cell on which it is camped. Optionally, the camped cell is the cell that receives the uplink positioning reference signal configuration or the RRC release message.

Optionally, the target reference signal may first be screened according to measurement quality, for example, a reference signal whose measurement quality (RSRP) is higher than a threshold is the target reference signal.

Optionally, the validity of the spatial beam relationship includes:

In the case where the measurement accuracy of the spatial relationship reference signal or the reference signal group of the uplink positioning reference signal detected by the terminal is not lower than the boundary condition of the spatial relationship reference signal, the spatial beam relationship is valid.

Or, if the terminal detects that the spatial relationship reference signal or the reference signal group of the uplink positioning reference signal satisfies the boundary condition of the spatial relationship reference signal, the spatial beam relationship is valid.

Optionally, the boundary condition at least includes: at least one of: L1-RSRP accuracy, L3-RSRP accuracy, and RSRP accuracy of the spatial relationship reference signal.

The spatial relationship reference signal at least includes: at least one of SSB, PRS, and CSI-RS.

Optionally, the method also includes:

If the spatial beam relationship fails, the terminal sends the uplink positioning reference signal in a beam scanning manner, or sends the uplink positioning reference signal in a beam repeating manner.

Optionally, it is sent in a beam scanning or repeating manner, as stipulated in the protocol or indicated by the network device.

Optionally, multiple base stations participating in positioning measure the uplink positioning reference signal according to the configuration of the uplink positioning reference signal. (The base station that configures the uplink positioning reference signal sends the configuration of the uplink positioning reference signal to the location server, and then the location server sends it to multiple base stations participating in positioning)

Optionally, if a certain base station fails to measure (for example, the RSRP of the above positioning reference signal is lower than the threshold, or the accuracy requirement cannot be met), the failure information (including the failure reason) is notified to the location server. Optionally, the base station releases the uplink positioning reference signal configuration.

The location server judges whether the uplink positioning reference signal configuration is valid (for example, whether an accurate location can be obtained) according to the failure information and/or measurement results of each base station. If it fails, notify the base station that originally configured the uplink positioning reference signal: the uplink positioning reference signal configuration failure information, and/or the uplink positioning reference signal configuration update request.

According to this information, the base station that originally configured the uplink positioning reference signal initiates radio access network (Radio Access Network, RAN) paging, notifies the terminal to enter the connection state, and further updates the configuration of the uplink positioning reference signal and/or completes uplink positioning; or , the base station initiates RAN paging, notifies the uplink positioning reference signal configuration information (such as carried in the paging PDSCH, or only notifies the update information through paging, notifies the UE to enter the small data transmission (Small Data Transmission, SDT) process, and updates in the SDT process Uplink positioning reference signal configuration information), do not enter the connected state; or, the base station initiates MT-SDT, notifies the uplink positioning reference signal configuration information, does not enter the connected state. After receiving the message sent by the base station, the terminal releases the invalid uplink positioning reference signal configuration.

In the embodiment of the present application, the terminal sends the uplink positioning reference signal according to the configuration information of the uplink reference signal, which can effectively reduce the transmission overhead of the unlicensed frequency band positioning reference signal in the frequency domain.

It should be noted that, the positioning reference signal processing method provided in the embodiment of the present application may be executed by a positioning reference signal processing device, or a control module in the positioning reference signal processing device for executing the positioning reference signal processing method. In the embodiment of the present application, the positioning reference signal processing device provided in the embodiment of the present application is described by taking the positioning reference signal processing device executing the positioning reference signal processing method as an example.

FIG. 7 is one of the structural schematic diagrams of the positioning reference signal processing device provided in the embodiment of the present application. As shown in FIG. 7, the positioning reference signal processing device 700 includes:

The first executing unit 701 is configured to execute the first operation according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal;

Wherein, the first operation includes at least one of the following:

Detecting a downlink positioning reference signal on at least one subband;

The downlink positioning reference signal on at least one subband is processed.

In the embodiment of the present application, according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal, the downlink positioning reference signal is detected and/or processed on at least one subband, which can effectively reduce the unlicensed frequency band positioning reference Transmission overhead of a signal in the frequency domain.

subband bandwidth;

number of subbands;

Subband ID.

Optionally, the detecting and/or processing the downlink positioning reference signal on at least one subband includes:

Optionally, the subband configuration information is configured in units of positioning frequency layers, or in units of transmission and reception points TRPs, or in units of downlink positioning reference signal resource sets, or in units of downlink positioning reference signal resources , or configure in units of terminals, or configure in units of terminal groups.

The positioning frequency layer reference point point A of the positioning reference signal, the subcarrier spacing SCS, and the same bandwidth;

Optionally, the device also includes:

The second execution unit is configured to detect and/or process the downlink positioning reference signal at the granularity of downlink positioning reference signal bandwidth or LBT bandwidth if the subband configuration information does not exist or is default.

Optionally, the device also includes:

A first receiving unit, configured to receive first indication information, where the first indication information is used to indicate the availability of subbands;

the duration of a candidate position;

Multiple candidate position durations for one cycle;

Within the channel occupation time COT duration Duration;

The COT duration is indicated as a downlink DL and/or flexible flexilble symbol.

Sending and receiving point identification;

Positioning frequency layer identification;

terminal identification;

terminal group identification;

Downlink positioning reference signal resource identifier;

The ID of the downlink positioning reference signal resource set.

Optionally, the first receiving unit is configured to perform one of the following:

receiving the first indication information before each candidate position;

receiving the first indication information after buffering downlink positioning reference signals of multiple candidate positions;

receiving the first indication information in an authorized frequency band;

The first indication information is received, and the first indication information is carried in the payload of the second network device or the second terminal after the LBT succeeds.

In the embodiment of the present application, according to the first indication information, the downlink positioning reference signal is processed on at least one available subband, which can further reduce the transmission overhead of the positioning reference signal in the unlicensed frequency band in the frequency domain.

Optionally, the device also includes:

A first detection unit, configured to perform blind detection on downlink positioning reference signals of different subbands when the first indication information is not received;

The first processing unit is configured to process downlink positioning reference signals of different subbands according to blind detection results.

Optionally, the device also includes:

The second receiving unit is configured to receive indication information indicating whether there is phase consistency between adjacent subbands.

Optionally, the device also includes:

The second processing unit is configured to jointly process the downlink positioning reference signals of adjacent subbands when there is phase consistency between adjacent subbands.

In the embodiment of the present application, in the case of phase consistency between adjacent subbands, joint processing of the downlink positioning reference signals of adjacent subbands can further reduce the frequency domain overhead of positioning reference signal transmission in unlicensed frequency bands .

Optionally, the device also includes:

The third processing unit is configured not to jointly process the downlink positioning reference signals of multiple subbands when the actual bandwidths and/or actual subband positions of the downlink positioning reference signals corresponding to different periods or different candidate positions are different.

The downlink positioning reference signal sub-band transmission conditions of the different candidate positions are related to the LBT result.

Optionally, the frequency of the at least one subband is continuous.

Optionally, the device also includes:

A third receiving unit, configured to receive second indication information, where the second indication information is used to indicate joint processing or separate processing of downlink positioning reference signals of multiple subbands;

In the embodiment of the present application, according to the downlink positioning reference signal subband processing indication whether to jointly process the downlink positioning reference signals of multiple subbands, the frequency domain overhead of positioning reference signal transmission in the unlicensed frequency band can be further reduced.

Optionally, the device also includes:

The first sending unit is configured to report a downlink positioning reference signal measurement result; wherein, the downlink positioning reference signal measurement result includes an indication of a downlink positioning reference signal subband associated with the downlink positioning reference signal measurement result;

Downlink positioning reference signal subband identification;

Downlink positioning reference signal candidate location identification;

Whether the measurement result of the downlink positioning reference signal has been jointly processed;

The positioning reference signal processing device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or a component, an integrated circuit, or a chip in a terminal. The apparatus or electronic equipment may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include but not limited to the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machines or self-service machines, etc., are not specifically limited in this embodiment of the present application.

The positioning reference signal processing device provided in the embodiment of the present application can realize each process realized by the method embodiment in FIG. 2 and achieve the same technical effect. To avoid repetition, details are not repeated here.

FIG. 8 is the second structural schematic diagram of the positioning reference signal processing device provided by the embodiment of the present application. As shown in FIG. 8, the positioning reference signal processing device 800 includes:

The third execution unit 801 is configured to perform listen-before-talk LBT according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal, or send the downlink positioning reference signal after the LBT is successful.

In the embodiment of the present application, according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal, LBT is performed after listening first, or the downlink positioning reference signal is sent after the LBT is successful, which can effectively reduce the unlicensed frequency band positioning. The transmission overhead of the reference signal in the frequency domain.

Optionally, the sending the downlink positioning reference signal after the LBT succeeds includes:

Perform LBT at the granularity of the downlink positioning reference signal subbands, or send the downlink positioning reference signal at the granularity of the downlink positioning reference signal subbands after the LBT is successful.

Optionally, the device also includes:

The second sending unit is configured to report the successful subband information of the downlink positioning reference signal transmission to the first network device;

Downlink positioning reference signal subband identification;

Downlink positioning reference signal candidate location identification;

Optionally, the device also includes:

A third sending unit, configured to send the subband configuration information and/or bandwidth configuration information to the first network device.

Optionally, the device also includes:

The fourth executing unit is configured to use the downlink positioning reference signal bandwidth or the LBT bandwidth as the granularity when the subband configuration information does not exist or is default, and perform LBT or send the downlink positioning reference signal after the LBT is successful.

Optionally, the device also includes:

a fourth sending unit, configured to send the first indication information to the first terminal and/or the first network device;

In this embodiment of the present application, by sending the availability indication of the downlink positioning reference signal subbands to the first terminal and/or the first network device, the terminal may, according to the availability indication of the downlink positioning reference signal subbands, use at least one available subband The uplink processing of the downlink positioning reference signal can further reduce the transmission overhead of the unlicensed frequency band positioning reference signal in the frequency domain.

Optionally, the device also includes:

a fifth sending unit, configured to send second indication information to the first terminal and/or the first network device;

In this embodiment of the present application, by sending the downlink positioning reference signal subband processing indication to the first terminal and/or the first network device, it may be possible for the first terminal to determine whether the subband processing indication of the downlink positioning reference signal is true for multiple subbands. Joint processing of downlink positioning reference signals can further reduce the frequency domain overhead of positioning reference signal transmission in unlicensed frequency bands.

The positioning reference signal processing device provided in the embodiment of the present application can implement various processes implemented in the method embodiment in FIG. 3 and achieve the same technical effect. To avoid repetition, details are not repeated here.

Optionally, FIG. 9 is a third structural schematic diagram of an apparatus for processing a positioning reference signal provided in an embodiment of the present application. As shown in FIG. 9, the positioning reference signal processing device 900 includes:

The fifth executing unit 901 is configured to perform listen-before-talk LBT according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal, or send the downlink positioning reference signal after the LBT is successful.

Optionally, the device also includes:

The sixth sending unit is configured to report the successful subband information of the downlink positioning reference signal transmission to the first network device;

Downlink positioning reference signal subband identification;

Downlink positioning reference signal candidate location identification;

Optionally, the device also includes:

A seventh sending unit, configured to send the subband configuration information and/or bandwidth configuration information to the first network device when the subband configuration information and/or bandwidth configuration information is determined.

Optionally, the device also includes:

The sixth execution unit is configured to use the bandwidth of the downlink positioning reference signal or the bandwidth of the LBT as the granularity when the subband configuration information does not exist or is default, and perform LBT or send the downlink positioning reference signal after the LBT is successful.

Optionally, the device also includes:

an eighth sending unit, configured to send the first indication information to the first terminal and/or the first network device;

Optionally, the device also includes:

a ninth sending unit, configured to send second indication information to the first terminal and/or the first network device;

The positioning reference signal processing device provided in the embodiment of the present application can realize each process realized by the method embodiment in FIG. 4 and achieve the same technical effect. To avoid repetition, details are not repeated here.

Optionally, FIG. 10 is a fourth structural schematic diagram of a positioning reference signal processing device provided in an embodiment of the present application. As shown in FIG. 10 , the positioning reference signal processing device 1000 includes:

The seventh execution unit 1001 is configured to send subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal to the second network device, the first terminal and/or the second terminal.

In the embodiment of the present application, by sending the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal to the second network device, the first terminal and/or the second terminal, the transmission efficiency of the positioning reference signal can be improved, Reduce transmission overhead.

Optionally, the method further includes an eighth execution unit, configured to execute at least one of the following:

Sending first indication information to the terminal;

sending second indication information to the terminal;

The positioning reference signal processing device provided in the embodiment of the present application can implement various processes implemented in the method embodiment in FIG. 5 and achieve the same technical effect. To avoid repetition, details are not repeated here.

Optionally, FIG. 11 is a fifth schematic structural diagram of a positioning reference signal processing device provided in an embodiment of the present application. As shown in FIG. 11 , the positioning reference signal processing device 1100 includes:

The tenth sending unit 1101 is configured to send the uplink positioning reference signal in the unconnected state according to the configuration information of the uplink positioning reference signal in the unconnected state;

Optionally, the sending the uplink positioning reference signal includes:

The uplink positioning reference signal is sent by means of beam scanning.

Optionally, the sending the uplink positioning reference signal by means of beam scanning includes:

According to the network instruction, send the uplink positioning reference signal in the way of beam scanning;

Wherein, according to the network instruction, sending the uplink positioning reference signal by means of beam scanning includes one of the following:

In the case that the spatial beam relationship of the uplink positioning reference signal is not indicated, the uplink positioning reference signal is sent in the form of beam scanning;

When the spatial beam relationship of the uplink positioning reference signal is not indicated and the beam scanning transmission mode is indicated, the uplink positioning reference signal is transmitted in the beam scanning mode;

Optionally, the sending the uplink positioning reference signal includes:

The terminal judges whether the configuration information of the uplink positioning reference signal in the unconnected state is valid according to the validity condition of the configuration of the uplink positioning reference signal, wherein the validity condition of the configuration of the uplink positioning reference signal includes at least one of the following: timing advance TA is valid; the spatial beam relationship is valid; the area is valid; the time is valid; the path loss reference signal is valid;

Optionally, the device also includes:

The ninth execution unit is configured to judge the validity of the timing advance TA and/or the spatial beam relationship according to the measurement result of the target reference signal and/or the change of the measurement result;

The tenth execution unit is configured to determine that the configuration of the timing advance TA and/or the spatial beam relationship is invalid when the measurement result exceeds or falls below a target threshold.

Optionally, the measurement results include at least one of the following:

Reference signal received power RSRP;

Reference Signal Received Quality RSRQ;

Time Difference of Arrival TDOA;

reference signal timing;

RSRP corresponding to the first path of the reference signal.

Optionally, the target reference signal includes at least one of the following:

Optionally, the validity of the spatial beam relationship includes:

In a case where the terminal detects the spatial relationship reference signal or the reference signal group of the uplink positioning reference signal with a measurement accuracy lower than the boundary condition of the spatial relationship reference signal, the spatial beam relationship becomes invalid.

Optionally, the device also includes:

The eleventh execution unit is configured to send the uplink positioning reference signal in a beam scanning manner, or send the uplink positioning reference signal in a beam repeating manner when the spatial beam relationship fails.

The positioning reference signal processing device provided in the embodiment of the present application can realize each process realized by the method embodiment in FIG. 6 and achieve the same technical effect. To avoid repetition, details are not repeated here.

Optionally, as shown in FIG. 12 , this embodiment of the present application further provides a communication device 1200, including a processor 1201, a memory 1202, and programs or instructions stored in the memory 1202 and operable on the processor 1201, For example, when the communication device 1200 is a terminal, when the program or instruction is executed by the processor 1201, each process of the above embodiment of the positioning reference signal processing method can be realized, and the same technical effect can be achieved. When the communication device 1200 is a network-side device, when the program or instruction is executed by the processor 1201, each process of the above positioning reference signal processing method embodiment can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.

An embodiment of the present application also provides a terminal, including a processor and a communication interface, and the processor is configured to perform a first operation according to subband configuration information and/or bandwidth configuration information of a downlink positioning reference signal; wherein the first operation includes At least one of the following: detecting the downlink positioning reference signal on at least one subband; and processing the downlink positioning reference signal on at least one subband. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect. Specifically, FIG. 13 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.

The terminal 1300 includes, but is not limited to: a radio frequency unit 1301, a network module 1302, an audio output unit 1303, an input unit 1304, a sensor 1305, a display unit 1306, a user input unit 1307, an interface unit 1308, a memory 1309, and a processor 1310, etc. at least some of the components.

Those skilled in the art can understand that the terminal 1300 can also include a power supply (such as a battery) for supplying power to various components, and the power supply can be logically connected to the processor 1310 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions. The terminal structure shown in FIG. 13 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine some components, or arrange different components, which will not be repeated here.

It should be understood that, in the embodiment of the present application, the input unit 1304 may include a graphics processor (Graphics Processing Unit, GPU) 13041 and a microphone 13042, and the graphics processor 13041 is used for the image capture device ( Such as the image data of the still picture or video obtained by the camera) for processing. The display unit 1306 may include a display panel 13061, and the display panel 13061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1307 includes a touch panel 13071 and other input devices 13072 . Touch panel 13071, also called touch screen. The touch panel 13071 may include two parts, a touch detection device and a touch controller. Other input devices 13072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, and joysticks, which will not be repeated here.

In the embodiment of the present application, the radio frequency unit 1301 receives the downlink data from the network side device, and processes it to the processor 1310; in addition, sends the uplink data to the network side device. Generally, the radio frequency unit 1301 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 1309 can be used to store software programs or instructions as well as various data. The memory 1309 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playback function, an image playback function, etc.) and the like. In addition, the memory 1309 may include a high-speed random access memory, and may also include a nonvolatile memory, wherein the nonvolatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. For example at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.

The processor 1310 may include one or more processing units; optionally, the processor 1310 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly handle wireless communications, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 1310 .

Wherein, the processor 1310 is configured to perform the first operation according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal;

Wherein, the first operation includes at least one of the following:

Detecting a downlink positioning reference signal on at least one subband;

The downlink positioning reference signal on at least one subband is processed.

subband bandwidth;

number of subbands;

Subband ID.

In the same positioning frequency layer, the actual bandwidths and/or actual subband positions of the downlink positioning reference signals corresponding to different periods or different downlink positioning reference signal candidate positions are the same or different.

Optionally, the processor 1310 is also used for:

Optionally, the radio frequency unit 1301 is configured to:

The processor 1310 is further configured to:

Processing a downlink positioning reference signal on at least one available subband according to the first indication information;

the duration of a candidate position;

Multiple candidate position durations for one cycle;

Within the channel occupation time COT duration Duration;

Sending and receiving point identification;

Positioning frequency layer identification;

terminal identification;

terminal group identification;

Downlink positioning reference signal resource identifier;

The ID of the downlink positioning reference signal resource set.

Optionally, the radio frequency unit 1301 is specifically configured to perform one of the following:

receiving the first indication information before each candidate position;

receiving the first indication information in an authorized frequency band;

In the embodiment of the present application, the terminal processes the downlink positioning reference signal on at least one available subband according to the first indication information, which can further reduce the transmission overhead of the positioning reference signal in the unlicensed frequency band in the frequency domain.

Optionally, the processor 1310 is also used for:

Optionally, the radio frequency unit 1301 is also used for:

Optionally, the processor 1310 is also used for

In the embodiment of the present application, in the case of phase consistency between adjacent subbands, joint processing of downlink positioning reference signals of adjacent subbands can further reduce the frequency domain overhead of positioning reference signal transmission in unlicensed frequency bands .

Optionally, the processor 1310 is also used for:

In the case that the actual bandwidths and/or actual subband positions of the downlink positioning reference signals corresponding to different periods or different candidate positions are different, no joint processing is performed on the downlink positioning reference signals of multiple subbands.

Optionally, the frequency of the at least one subband is continuous.

Optionally, the radio frequency unit 1301 is also used for:

The processor 1310 is further configured to:

In the embodiment of the present application, the terminal can further reduce the frequency domain overhead of positioning reference signal transmission in the unlicensed frequency band according to the subband processing indication of the downlink positioning reference signal whether to perform joint processing on the downlink positioning reference signals of multiple subbands.

Optionally, the radio frequency unit 1301 is also used for:

Downlink positioning reference signal subband identification;

Downlink positioning reference signal candidate location identification;

Optionally, the present application further provides a terminal, including a processor and a communication interface, and the processor is used to perform listen-before-talk LBT according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal, or, in the LBT After success, the downlink positioning reference signal is sent. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect. Specifically, FIG. 13 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.

Wherein, the processor 1310 is configured to perform listen-before-talk LBT according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal, or send the downlink positioning reference signal after the LBT is successful.

In this embodiment of the application, the terminal performs listen-before-talk LBT according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal, or sends the downlink positioning reference signal after the LBT is successful, which can effectively reduce the unlicensed frequency band The transmission overhead of the positioning reference signal in the frequency domain.

Optionally, the radio frequency unit 1301 is also used for:

Downlink positioning reference signal subband identification;

Downlink positioning reference signal candidate location identification;

Optionally, the radio frequency unit 1301 is also used for:

If the subband configuration information and/or bandwidth configuration information is determined, send the subband configuration information and/or bandwidth configuration information to the first network device.

Optionally, the processor 1310 is also used for:

If the subband configuration information does not exist or is default, the downlink positioning reference signal bandwidth or the LBT bandwidth is used as the granularity, and the downlink positioning reference signal is sent after the LBT is performed or the LBT is successful.

Optionally, the radio frequency unit 1301 is also used for:

sending first indication information to the first terminal and/or the first network device;

Optionally, the radio frequency unit 1301 is also used for:

sending second indication information to the first terminal and/or the first network device;

Optionally, the present application further provides a terminal, including a processor and a communication interface, and the communication interface is used to send the uplink positioning reference signal in the unconnected state according to the configuration information of the uplink positioning reference signal in the unconnected state; wherein, the The configuration information of the uplink positioning reference signal in the unconnected state is received in the connected state or in a radio link control RRC release message. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect. Specifically, FIG. 13 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.

Wherein, the radio frequency unit 1301 is configured to send the uplink positioning reference signal in the unconnected state according to the configuration information of the uplink positioning reference signal in the unconnected state; wherein, the configuration information of the uplink positioning reference signal in the unconnected state is received in the connected state Or received in a radio link control RRC release message.

Optionally, the sending the uplink positioning reference signal includes:

In the case where the spatial beam relationship of the uplink positioning reference signal is not indicated and the beam scanning transmission mode is indicated, the terminal transmits the uplink positioning reference signal in the beam scanning mode;

Optionally, the sending the uplink positioning reference signal includes:

The terminal judges whether the configuration information of the uplink positioning reference signal in the unconnected state is valid according to the validity of the configuration of the uplink positioning reference signal, wherein the validity of the configuration of the uplink positioning reference signal includes at least one of the following: timing ahead of TA Validity; validity of the spatial beam relationship;

When the configuration information of the uplink positioning reference signal in the unconnected state is valid, send the uplink positioning reference signal according to the configuration information of the uplink positioning reference signal in the unconnected state; or, in the uplink positioning in the unconnected state When the configuration information of the reference signal becomes invalid, the terminal stops sending the uplink positioning reference signal using the configuration information of the unconnected uplink positioning reference signal.

Optionally, the processor 1310 is also used for:

The terminal judges the validity of the configuration of the uplink positioning reference signal according to the measurement result of the target reference signal and/or the change of the measurement result;

If the measurement result exceeds or is lower than the target threshold, it is determined that the configuration of the uplink positioning reference signal is invalid.

Optionally, the measurement results include at least one of the following:

Reference signal received power RSRP;

Reference Signal Received Quality RSRQ;

Time Difference of Arrival TDOA;

Reference signal timing;

RSRP corresponding to the first path of the reference signal.

Optionally, the target reference signal includes at least one of the following:

Optionally, the validity of the spatial beam relationship includes:

When the measurement accuracy of the reference signal or reference signal group with the spatial beam relationship detected by the terminal is lower than the boundary condition of the spatial beam relationship reference signal, the spatial beam relationship becomes invalid.

Optionally, the processor 1310 is also used for:

In the case that the spatial beam relationship fails, the terminal sends the uplink positioning reference signal in a beam scanning manner, or sends the uplink positioning reference signal in a beam repeating manner.

The embodiment of the present application also provides a network side device, including a processor and a communication interface, and the processor is used to perform listen-before-talk LBT according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal, or, in the LBT After success, the downlink positioning reference signal is sent. The network-side device embodiment corresponds to the above-mentioned network-side device method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.

Specifically, the embodiment of the present application also provides a network side device. As shown in FIG. 14 , the network side device 1400 includes: an antenna 1401 , a radio frequency device 1402 , and a baseband device 1403 . The antenna 1401 is connected to the radio frequency device 1402 . In the uplink direction, the radio frequency device 1402 receives information through the antenna 1401, and sends the received information to the baseband device 1403 for processing. In the downlink direction, the baseband device 1403 processes the information to be sent and sends it to the radio frequency device 1402 , and the radio frequency device 1402 processes the received information and sends it out through the antenna 1401 .

The foregoing frequency band processing device may be located in the baseband device 1403 , and the method performed by the network side device in the above embodiments may be implemented in the baseband device 1403 , and the baseband device 1403 includes a processor 1404 and a memory 1405 .

The baseband device 1403 may include, for example, at least one baseband board, and the baseband board is provided with a plurality of chips, as shown in FIG. The network device operations shown in the above method embodiments.

The baseband device 1403 may also include a network interface 1406 for exchanging information with the radio frequency device 1402, such as a common public radio interface (common public radio interface, CPRI for short).

Specifically, the network side device in this embodiment of the present invention also includes: instructions or programs stored in the memory 1405 and executable on the processor 1404, and the processor 1404 calls the instructions or programs in the memory 1405 to execute the modules shown in FIG. 8 To avoid duplication, the method of implementation and to achieve the same technical effect will not be repeated here.

The embodiment of the present application also provides a network side device, including a processor and a communication interface, the communication interface is used to send the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal to the second network device, the first terminal and /or a second terminal. The network-side device embodiment corresponds to the above-mentioned network-side device method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.

Specifically, the embodiment of the present application also provides a network side device. As shown in FIG. 15, the network device 1500 includes: a processor 1501, a transceiver 1502, a memory 1503, a user interface 1504, and a bus interface, wherein:

In the embodiment of the present application, the network-side device 1500 further includes: a computer program stored in the memory 1503 and operable on the processor 1501, the computer program is executed by the processor 1501 to execute the methods performed by the modules shown in FIG. 10 , and To achieve the same technical effect, in order to avoid repetition, it is not repeated here.

In FIG. 15 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1501 and various circuits of memory represented by memory 1503 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein. The bus interface provides the interface. Transceiver 1502 may be a plurality of elements, including a transmitter and a receiver, providing a means for communicating with various other devices over transmission media. For different user devices, the user interface 1504 may also be an interface capable of connecting externally and internally to required devices, and the connected devices include but are not limited to keypads, displays, speakers, microphones, joysticks, and the like.

The processor 1501 is responsible for managing the bus architecture and general processing, and the memory 1503 can store data used by the processor 1501 when performing operations.

The embodiment of the present application also provides a readable storage medium. The readable storage medium stores a program or an instruction. When the program or instruction is executed by the processor, the various processes in the above embodiment of the positioning reference signal processing method are implemented, and can To achieve the same technical effect, in order to avoid repetition, no more details are given here.

Wherein, the processor is the processor in the terminal described in the foregoing embodiments. The readable storage medium includes computer readable storage medium, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.

The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the above positioning reference signal processing method Each process of the example, and can achieve the same technical effect, in order to avoid repetition, will not repeat them here.

It should be understood that the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.

The embodiment of the present application also provides a computer program/program product, the computer program/program product is stored in a non-transitory storage medium, and the program/program product is executed by at least one processor to implement the above-mentioned system message Each process of the reporting method embodiment of the report can achieve the same technical effect, so in order to avoid repetition, details are not repeated here.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , optical disc), including several instructions to enable a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in various embodiments of the present application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

Claims

A positioning reference signal processing method, comprising:

The first terminal performs a first operation according to subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal;

Wherein, the first operation includes at least one of the following:

Detecting a downlink positioning reference signal on at least one subband;

The downlink positioning reference signal on at least one subband is processed.
The positioning reference signal processing method according to claim 1, wherein the subband configuration information includes at least one of the following:

subband bandwidth;

number of subbands;

Subband ID.
The positioning reference signal processing method according to claim 1, wherein said detecting and/or processing the downlink positioning reference signal on at least one subband comprises:

Detecting and/or processing the downlink positioning reference signal at each downlink positioning reference signal candidate position at the subband granularity;

Wherein, one downlink positioning reference signal candidate position represents a downlink positioning reference signal transmission opportunity in the time domain.
The positioning reference signal processing method according to claim 1, wherein the subband configuration information is configured in units of positioning frequency layers, or in units of transmission and reception points (TRPs), or in units of downlink positioning reference signal resource sets , or configured in units of downlink positioning reference signal resources, or configured in units of terminals, or configured in units of terminal groups.
The positioning reference signal processing method according to claim 4, wherein, when the subband configuration information is configured in units of a positioning frequency layer, the positioning frequency layer satisfies at least one of the following:

The subband configurations of the downlink positioning reference signals in the positioning frequency layer are the same;

The positioning frequency layer reference point point A of the downlink positioning reference signal, the subcarrier spacing SCS, and the same bandwidth;

The actual bandwidth and/or actual subband position of the downlink positioning reference signal in the positioning frequency layer are the same or different;

In the same positioning frequency layer, the actual PRS bandwidth and/or actual sub-band positions corresponding to the same cycle or different PRS candidate positions are the same or different.
The positioning reference signal processing method according to claim 1, wherein the method further comprises:

In the case that the subband configuration information does not exist or is default, the downlink positioning reference signal is detected and/or processed at the granularity of downlink positioning reference signal bandwidth or listen-before-talk LBT bandwidth.
The positioning reference signal processing method according to claim 1, wherein the method further comprises:

receiving first indication information, where the first indication information is used to indicate the availability of subbands;

The processing of the downlink positioning reference signal on at least one subband includes:

Process the downlink positioning reference signal on at least one available subband according to the first indication information.
The positioning reference signal processing method according to claim 7, wherein the validity time or validity period of the first indication information is at least one of the following:

the duration of a candidate position;

Multiple candidate position durations for one cycle;

Within the channel occupation time COT duration Duration;

The COT duration is indicated as a downlink DL and/or flexible symbol.
The positioning reference signal processing method according to claim 7, wherein the first indication information includes at least one of the following:

Sending and receiving point identification;

Positioning frequency layer identification;

terminal identification;

terminal group identification;

Downlink positioning reference signal resource identifier;

The ID of the downlink positioning reference signal resource set.
The positioning reference signal processing method according to claim 7, wherein said receiving the first indication information includes one of the following:

receiving the first indication information before each candidate position;

receiving the first indication information before multiple candidate positions in each period;

receiving the first indication information after buffering downlink positioning reference signals of multiple candidate positions;

receiving the first indication information in an authorized frequency band;

The first indication information is received, where the first indication information is carried in the payload after the second network device or the second terminal succeeds in LBT.
The positioning reference signal processing method according to claim 7, wherein the method further comprises:

If the first indication information is not received, perform blind detection on downlink positioning reference signals of different subbands;

According to the blind detection result, the downlink positioning reference signals of different subbands are processed.
The positioning reference signal processing method according to claim 1 or 7, wherein the method further comprises:

Indication information for indicating whether there is phase consistency between adjacent subbands is received.
The positioning reference signal processing method according to claim 12, wherein the method further comprises:

In the case that there is phase consistency between adjacent subbands, the downlink positioning reference signals of adjacent subbands are jointly processed.
The positioning reference signal processing method according to claim 1, wherein the method further comprises:

If the actual bandwidths and/or actual subband positions of the downlink positioning reference signals corresponding to different periods or different candidate positions are different, the first terminal does not jointly process the downlink positioning reference signals of multiple subbands.
The positioning reference signal processing method according to claim 1, wherein the frequency of the at least one subband is continuous.
The positioning reference signal processing method according to claim 1 or 7, wherein the method further comprises:

receiving second indication information, where the second indication information is used to indicate joint processing or separate processing of downlink positioning reference signals of multiple subbands;

The processing of the downlink positioning reference signal on at least one subband includes:

According to the second indication information, joint processing or separate processing is performed on the downlink positioning reference signals of multiple subbands.
The positioning reference signal processing method according to any one of claims 1-15, wherein the method further comprises:

Reporting the downlink positioning reference signal measurement result; wherein, the downlink positioning reference signal measurement result includes an indication of the downlink positioning reference signal subband associated with the downlink positioning reference signal measurement result;

Wherein, the indication of the downlink positioning reference signal subband associated with the downlink positioning reference signal measurement result includes at least one of the following:

Downlink positioning reference signal subband identification;

Downlink positioning reference signal candidate location identification;

A time stamp associated with the downlink positioning reference signal measurement result;

Whether the measurement result of the downlink positioning reference signal has been jointly processed;

The positioning frequency layer identifier corresponding to the downlink positioning reference signal measurement result, or the sending and receiving point identifier, or the positioning reference signal resource set identifier, or the positioning reference signal resource identifier, or the terminal identifier, or the terminal group identifier.
A positioning reference signal processing method, comprising:

The second network device performs listen-before-talk LBT according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal, or sends the downlink positioning reference signal after the LBT is successful.
The positioning reference signal processing method according to claim 18, wherein said sending the downlink positioning reference signal after the LBT is successful comprises:

In a case where the downlink positioning reference signal subband bandwidth includes at least one LBT bandwidth and all LBT bandwidths within the downlink positioning reference signal subband range have LBT successfully, the downlink positioning reference signal is sent.
The positioning reference signal processing method according to claim 18, wherein said performing the listen-before-talk LBT, or sending the downlink positioning reference signal after the LBT is successful, comprises:

Perform LBT at the granularity of the downlink positioning reference signal subbands, or send the downlink positioning reference signal at the granularity of the downlink positioning reference signal subbands after the LBT is successful.
The positioning reference signal processing method according to claim 19 or 20, wherein the method further comprises:

Reporting the successful subband information of the downlink positioning reference signal transmission to the first network device;

Wherein, the downlink positioning reference signal transmission success subband information includes at least one of the following:

Downlink positioning reference signal subband identification;

Downlink positioning reference signal candidate location identification;

A time stamp associated with the downlink positioning reference signal measurement result.
The positioning reference signal processing method according to claim 18, wherein the method further comprises:

The second network device sends the subband configuration information and/or bandwidth configuration information to the first network device.
The positioning reference signal processing method according to claim 18, wherein the method further comprises:

If the sub-band configuration information does not exist or is default, the second network device sends the downlink positioning reference signal after performing LBT or LBT with a granularity of downlink positioning reference signal bandwidth or LBT bandwidth.
The positioning reference signal processing method according to claim 18, wherein the method further comprises:

the second network device sends the first indication information to the first terminal and/or the first network device;

Wherein, the first indication information is used to indicate the availability of subbands, or,

The first indication information is used to indicate the availability of subbands and whether adjacent subbands have phase consistency.
The positioning reference signal processing method according to claim 18 or 24, wherein the method further comprises:

the second network device sends second indication information to the first terminal and/or the first network device;

The second indication information is used to indicate joint processing or separate processing of downlink positioning reference signals of multiple subbands.
A positioning reference signal processing method, comprising:

The second terminal performs listen-before-talk LBT according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal, or sends the downlink positioning reference signal after the LBT succeeds.
The positioning reference signal processing method according to claim 26, wherein the sending the downlink positioning reference signal after the LBT is successful comprises:

In a case where the downlink positioning reference signal subband bandwidth includes at least one LBT bandwidth and all LBT bandwidths within the downlink positioning reference signal subband range have LBT successfully, the second terminal sends the downlink positioning reference signal.
The positioning reference signal processing method according to claim 26, wherein the sending is performed by listening first and then talking LBT, or sending the downlink positioning reference signal after the LBT is successful, comprising:

The downlink positioning reference signal sub-band is used as the granularity to perform LBT or send the downlink positioning reference signal after the LBT is successful.
The positioning reference signal processing method according to claim 27 or 28, wherein the method further comprises:

The second terminal reports the successful subband information of the downlink positioning reference signal transmission to the first network device;

Wherein, the downlink positioning reference signal transmission success subband information includes at least one of the following:

Downlink positioning reference signal subband identification;

Downlink positioning reference signal candidate location identification;

A time stamp associated with the downlink positioning reference signal measurement result.
The positioning reference signal processing method according to claim 26, wherein the method further comprises:

The second terminal sends the subband configuration information and/or bandwidth configuration information to the first network device.
The positioning reference signal processing method according to claim 26, wherein the method further comprises:

In the case that the subband configuration information does not exist or is default, the second terminal sends the downlink positioning reference signal bandwidth or LBT bandwidth as granularity, and sends the downlink positioning reference signal after performing LBT or LBT successfully.
The positioning reference signal processing method according to claim 26, wherein the method further comprises:

the second terminal sends the first indication information to the first terminal and/or the first network device;

Wherein, the first indication information is used to indicate the availability of downlink positioning reference signal subbands, or,

The first indication information is used to indicate the availability of subbands and whether adjacent subbands have phase consistency.
The positioning reference signal processing method according to claim 26 or 32, wherein the method further comprises:

the second terminal sends second indication information to the first terminal and/or the first network device;

The second indication information is used to indicate joint processing or separate processing of downlink positioning reference signals of multiple subbands.
A positioning reference signal processing method, comprising:

The first network device sends the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal to the second network device, the first terminal and/or the second terminal.
The positioning reference signal processing method according to claim 34, wherein the method further comprises at least one of the following:

receiving a downlink positioning reference signal measurement result reported by the first terminal;

receiving the downlink positioning reference signal transmission success subband information reported by the second network device or the second terminal;

receiving subband configuration information and/or bandwidth configuration information sent by the second network device or the second terminal;

receiving first indication information sent by the second network device or the second terminal;

receiving second indication information sent by the second network device or the second terminal;

Sending first indication information to the terminal;

sending second indication information to the terminal;

Wherein, the first indication information is used to indicate the availability of subbands, or the first indication information is used to indicate the availability of subbands and whether adjacent subbands have phase consistency;

The second indication information is used to indicate joint processing or separate processing of downlink positioning reference signals of multiple subbands.
A positioning reference signal processing method, comprising:

The terminal sends the uplink positioning reference signal in the unconnected state according to the configuration information of the uplink positioning reference signal in the unconnected state;

Wherein, the configuration information of the uplink positioning reference signal in the unconnected state is received in the connected state or in a radio link control RRC release message.
The positioning reference signal processing method according to claim 36, wherein the sending the uplink positioning reference signal comprises:

The terminal sends the uplink positioning reference signal by means of beam scanning.
The positioning reference signal processing method according to claim 37, wherein the terminal sends the uplink positioning reference signal by means of beam scanning, comprising:

According to the network instruction, the terminal sends the uplink positioning reference signal by means of beam scanning;

Wherein, the sending of the uplink positioning reference signal by the terminal in a beam scanning manner according to the network instruction includes one of the following:

In the case where the spatial beam relationship of the uplink positioning reference signal is not indicated, the terminal sends the uplink positioning reference signal in a beam scanning manner;

If the spatial beam relationship of the uplink positioning reference signal is not indicated and the transmission mode of beam scanning is indicated, the terminal transmits the uplink positioning reference signal in the beam scanning mode;

In the case of indicating the transmission mode of beam scanning, the uplink positioning reference signal is transmitted.
The positioning reference signal processing method according to claim 36, wherein the sending the uplink positioning reference signal comprises:

The terminal judges whether the configuration information of the uplink positioning reference signal in the unconnected state is valid according to the validity condition of the configuration of the uplink positioning reference signal, wherein the validity condition of the configuration of the uplink positioning reference signal includes at least one of the following: timing advance TA is valid; the spatial beam relationship is valid; the area is valid; the time is valid; the path loss reference signal is valid;

When the configuration information of the uplink positioning reference signal in the unconnected state is valid, send the uplink positioning reference signal according to the configuration information of the uplink positioning reference signal in the unconnected state; or, in the uplink positioning in the unconnected state When the configuration information of the reference signal becomes invalid, the terminal terminates sending the uplink positioning reference signal using the configuration information of the unconnected uplink positioning reference signal or releases the invalid configuration of the positioning reference signal.
The positioning reference signal processing method according to claim 39, wherein the method further comprises:

The terminal judges the validity of the timing advance TA and/or the spatial beam relationship according to the measurement result of the target reference signal and/or the change of the measurement result;

In case the measurement result exceeds or falls below a target threshold, it is determined that the timing advance TA and/or the configuration of the spatial beam relationship is invalid.
The positioning reference signal processing method according to claim 40, wherein the measurement results include at least one of the following:

Reference signal received power RSRP;

Reference Signal Received Quality RSRQ;

Time Difference of Arrival TDOA;

reference signal timing;

RSRP corresponding to the first path of the reference signal.
The positioning reference signal processing method according to claim 40, wherein the target reference signal comprises at least one of the following:

A reference signal or reference signal group configured for TA validity judgment;

Spatial relationship reference signal or reference signal group configured for uplink positioning reference signal;

A path loss reference signal or reference signal group configured for the uplink positioning reference signal;

A reference signal or reference signal group that has an associated relationship with a system information block type 1 SIB1.
The positioning reference signal processing method according to claim 39, wherein the spatial beam relationship effectively includes:

In the case where the measurement accuracy of the spatial relationship reference signal or the reference signal group of the uplink positioning reference signal detected by the terminal is not lower than the boundary condition of the spatial relationship reference signal, the spatial beam relationship is valid.
The positioning reference signal processing method according to claim 39, wherein the method further comprises:

In the case that the spatial beam relationship fails, the terminal sends the uplink positioning reference signal in a beam scanning manner, or sends the uplink positioning reference signal in a beam repeating manner. 45. A positioning reference signal processing device, comprising:

The first executing unit is configured to execute the first operation according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal;

Wherein, the first operation includes at least one of the following:

Detecting a downlink positioning reference signal on at least one subband;

The downlink positioning reference signal on at least one subband is processed.
A positioning reference signal processing device, comprising:

The third execution unit is configured to perform listen-before-talk LBT according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal, or send the downlink positioning reference signal after the LBT is successful.
A positioning reference signal processing device, comprising:

The fifth executing unit is configured to perform listen-before-talk LBT according to the subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal, or send the downlink positioning reference signal after the LBT is successful.
A positioning reference signal processing device, comprising:

A seventh executing unit, configured to send subband configuration information and/or bandwidth configuration information of the downlink positioning reference signal to the second network device, the first terminal and/or the second terminal.
A positioning reference signal processing device, comprising:

The tenth sending unit is configured to send the uplink positioning reference signal in the unconnected state according to the configuration information of the uplink positioning reference signal in the unconnected state;

Wherein, the configuration information of the uplink positioning reference signal in the unconnected state is received in the connected state or in an RRC release message.
A terminal, comprising a processor, a memory, and a program or instruction stored on the memory and operable on the processor, when the program or instruction is executed by the processor, any of claims 1 to 17 can be realized. The steps of the positioning reference signal processing method described in one item, or the steps of the positioning reference signal processing method described in any one of claims 26 to 33, or the steps of the positioning reference signal processing method described in any one of claims 36 to 44 Steps of a positioning reference signal processing method.
A network side device, comprising a processor, a memory, and a program or instruction stored on the memory and operable on the processor, when the program or instruction is executed by the processor, it realizes the requirements of claims 18 to 18. 25, or realize the steps of the positioning reference signal processing method according to any one of claims 34 to 35.
A readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the positioning reference signal processing method according to any one of claims 1 to 17, or , to realize the steps of the positioning reference signal processing method according to any one of claims 18 to 25, or to realize the steps of the positioning reference signal processing method according to any one of claims 26 to 33, or to realize the steps of the positioning reference signal processing method according to any one of claims 26 to 33, or to realize the steps of the positioning reference signal processing method according to any one of claims 18 to 25 The steps of the positioning reference signal processing method described in any one of claims 34 to 35, or the steps of the positioning reference signal processing method described in any one of claims 36 to 44.