Positioning reference signal processing method, terminal and network side device

Abstract

The application discloses a positioning reference signal processing method, a terminal and a network side device, and belongs to the technical field of communication. The positioning reference signal processing method comprises the following steps: a first terminal performs a first operation according to sub-band configuration information and / or bandwidth configuration information of a downlink positioning reference signal. 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 at least one sub-band.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of communication, and particularly relates to a positioning reference signal processing method, a terminal and a network side device. BACKGROUND

[0002] In a future communication system, an unlicensed band can help an operator expand services as a supplement to a licensed band. Since the unlicensed band is shared by multiple radio access technologies (RATs), in some countries or regions, the unlicensed band must comply with regulations when used to ensure that all devices can use the resource fairly, such as listen before talk (LBT), maximum channel occupancy time (MCOT), and the like.

[0003] Transmitting a positioning reference signal using a carrier of an unlicensed band can further improve the accuracy of positioning. Transmission of an unlicensed band positioning reference signal (PRS) is mainly affected by LBT. For example, a base station can only transmit a PRS after LBT is successful. In the frequency dimension, the PRS bandwidth is large in positioning, and is limited by the basic bandwidth of LBT. Therefore, the PRS bandwidth must also be divided into different bandwidths for LBT and transmission, which has a large frequency domain overhead. Therefore, how to reduce the transmission overhead of an unlicensed band positioning reference signal in the frequency domain needs to be considered. SUMMARY

[0004] 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 an unlicensed band positioning reference signal in the frequency domain.

[0005] In a first aspect, a positioning reference signal processing method is provided, and the method comprises:

[0006] The first terminal performs a first operation according to subband configuration information and / or bandwidth configuration information of a downlink positioning reference signal;

[0007] The first operation comprises at least one of the following:

[0008] Detecting the downlink positioning reference signal on at least one subband;

[0009] Processing the downlink positioning reference signal on at least one subband.

[0010] Secondly, a positioning reference signal processing method is provided, the method comprising:

[0011] The second network device performs Listen-Before-Speak (LBT) based on 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.

[0012] Thirdly, a positioning reference signal processing method is provided, the method comprising:

[0013] The second terminal performs a listen-before-speak (LBT) based on 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.

[0014] Fourthly, a positioning reference signal processing method is provided, the method comprising:

[0015] 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.

[0016] Fifthly, a positioning reference signal processing method is provided, the method comprising:

[0017] Based on the configuration information of the uplink positioning reference signal in the disconnected state, the terminal sends the uplink positioning reference signal in the disconnected state.

[0018] The configuration information of the uplink positioning reference signal in the non-connected state is received in the connected state or in the Radio Link Control (RRC) release message.

[0019] Sixthly, a positioning reference signal processing apparatus is provided, the apparatus comprising:

[0020] The first execution unit is configured to perform a first operation based on the sub-band configuration information and / or bandwidth configuration information of the downlink positioning reference signal;

[0021] The first operation includes at least one of the following:

[0022] Detect the downlink positioning reference signal on at least one sub-band;

[0023] Process the downlink positioning reference signal on at least one sub-band.

[0024] In a seventh aspect, a positioning reference signal processing apparatus is provided, the apparatus comprising:

[0025] The third execution unit is used to perform Listen-Before-Speak (LBT) based on the subband configuration information and / or bandwidth configuration information of the downlink positioning reference signal, or to send the downlink positioning reference signal after the LBT is successful.

[0026] Eighthly, a positioning reference signal processing apparatus is provided, the apparatus comprising:

[0027] The fifth execution unit is used to perform Listen-Before-Speak (LBT) based on the subband configuration information and / or bandwidth configuration information of the downlink positioning reference signal, or to send the downlink positioning reference signal after the LBT is successful.

[0028] Ninthly, a positioning reference signal processing apparatus is provided, the apparatus comprising:

[0029] The seventh execution unit is used to send the sub-band 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.

[0030] In a tenth aspect, a positioning reference signal processing apparatus is provided, the apparatus comprising:

[0031] The tenth transmitting unit is used to transmit the uplink positioning reference signal in the disconnected state according to the configuration information of the uplink positioning reference signal in the disconnected state;

[0032] The configuration information of the uplink positioning reference signal in the disconnected state is received in the connected state or in the RRC release message.

[0033] Eleventhly, a terminal is provided, the terminal including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein when the program or instructions are executed by the processor, they implement the steps of the positioning reference signal processing method as described in the first aspect, or the steps of the positioning reference signal processing method as described in the third aspect, or the steps of the positioning reference signal processing method as described in the fifth aspect.

[0034] 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 based on subband configuration information and / or bandwidth configuration information of a Positioning Reference Signal (PRS); wherein 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. Alternatively, the processor is configured to perform Listen-Before-Speak (LBT) based on the subband configuration information and / or bandwidth configuration information of the PRS, or to send the PRS after successful LBT. Alternatively, the communication interface is configured to send an uplink positioning reference signal in a disconnected state based on the configuration information of the uplink positioning reference signal in a disconnected state; wherein the configuration information of the uplink positioning reference signal in the disconnected state is received in a connected state or in an RRC release message.

[0035] In a thirteenth aspect, a network-side device is provided, comprising a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the positioning reference signal processing method as described in the second aspect, or implement the steps of the positioning reference signal processing method as described in the fourth aspect.

[0036] 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-Speak (LBT) based on subband configuration information and / or bandwidth configuration information of a Positioning Reference Signal (PRS), or to send the PRS after successful LBT. Alternatively, the communication interface is configured to send the subband configuration information and / or bandwidth configuration information of the downlink Positioning Reference Signal to a second network device, a first terminal, and / or a second terminal.

[0037] In a fifteenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the positioning reference signal processing method as described in the first aspect, or the steps of the positioning reference signal processing method as described in the third aspect, or the steps of the positioning reference signal processing method as described in the second aspect, or the steps of the positioning reference signal processing method as described in the fourth aspect, or the steps of the positioning reference signal processing method as described in the fifth aspect.

[0038] In a sixteenth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run a program or instructions to implement the positioning reference signal processing method as described in the first aspect, or the positioning reference signal processing method as described in the third aspect, or the positioning reference signal processing method as described in the second aspect, or the positioning reference signal processing method as described in the fourth aspect, or the positioning reference signal processing method as described in the fifth aspect.

[0039] In a seventeenth aspect, a computer program / program product is provided, the computer program / program product being stored in a non-transient storage medium, the program / program product being executed by at least one processor to implement the steps of the positioning reference signal processing method as described in the first aspect, or the steps of the positioning reference signal processing method as described in the third aspect, or the steps of the positioning reference signal processing method as described in the second aspect, or the steps of the positioning reference signal processing method as described in the fourth aspect, or the steps of the positioning reference signal processing method as described in the fifth aspect.

[0040] In the embodiments of this application, the terminal detects and / or processes the downlink positioning reference signal on at least one sub-band according to the sub-band configuration information and / or bandwidth configuration information of the downlink positioning reference signal, which can effectively reduce the transmission overhead of the unlicensed frequency band positioning reference signal in the frequency domain. Attached Figure Description

[0041] Figure 1 This is a structural diagram of a wireless communication system applicable to the embodiments of this application;

[0042] Figure 2 One of the flowcharts of the positioning reference signal processing method provided in the embodiments of this application;

[0043] Figure 3 A second schematic flowchart illustrating the positioning reference signal processing method provided in this application embodiment;

[0044] Figure 4 The third schematic flowchart of the positioning reference signal processing method provided in the embodiments of this application;

[0045] Figure 5 The fourth flowchart illustrates the positioning reference signal processing method provided in this application embodiment;

[0046] Figure 6 Fifth of the flowcharts illustrating the positioning reference signal processing method provided in the embodiments of this application;

[0047] Figure 7 This is one of the structural schematic diagrams of the positioning reference signal processing device provided in the embodiments of this application;

[0048] Figure 8 This is a second schematic diagram of the positioning reference signal processing device provided in the embodiments of this application;

[0049] Figure 9 This is the third schematic diagram of the positioning reference signal processing device provided in the embodiments of this application;

[0050] Figure 10 Fourth schematic diagram of the positioning reference signal processing device provided in the embodiments of this application;

[0051] Figure 11 Fifth schematic diagram of the positioning reference signal processing device provided in the embodiments of this application;

[0052] Figure 12 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0053] Figure 13 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application;

[0054] Figure 14 This is one of the structural schematic diagrams of the network-side device provided in the embodiments of this application;

[0055] Figure 15 This is a second schematic diagram of the network-side device provided in an embodiment of this application. Detailed Implementation

[0056] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0057] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0058] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as 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 (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to applications other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0059] Figure 1This diagram illustrates a structural diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11, an access network device 12, and a core network device 13. The terminal 11 can also be referred to as a terminal device or user equipment (UE). The terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, game consoles, etc. It should be noted that the specific type of terminal 11 is not limited in this embodiment. Access network device 12 can also be called radio access network device or radio access network (RAN). Access network device 12 can be a base station. The base station can be called a node B, evolved node B, access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), B node, evolved B node (eNB), home B node, home evolved B node, WLAN access point, WiFi node, transmitting and receiving point (TRP), or any 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 embodiments of this application, only the base station in the NR system is used as an example, but the specific type of base station is not limited.The core network device 13 can also be referred to as the core network (CN) or 5G core (5GC) network. The core network device 13 may include, but is not limited to, at least one of the following: core network node, core network function, Mobility Management Entity (MME), Access Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Application Function (AF), location server, etc. It should be noted that this embodiment only uses a core network device in a 5G system as an example, but it is not limited to this.

[0060] Utilizing carrier waves in unlicensed frequency bands to transmit positioning reference signals can further improve positioning accuracy. However, PRS transmission in unlicensed frequency bands is primarily affected by LBT (Local Bit Transmission). Therefore, to increase the probability of successful PRS transmission during positioning, it may be necessary to introduce the concept of candidate PRS locations. That is, by transmitting PRS from multiple candidate locations, even if some candidate locations fail to transmit PRS due to LBT failure, the remaining candidate locations will still have a chance to transmit PRS.

[0061] In the frequency dimension, due to the large PRS bandwidth in positioning, limited by the basic LBT bandwidth, the PRS bandwidth must also be divided into different bandwidths for LBT and transmission. Firstly, to reduce the number of blind LBT detections by the UE in the frequency domain and to reduce the overhead of LBT indication, a dedicated subband can be defined for the PRS. This dedicated PRS subband can be larger than the regular LBT bandwidth, and the base station can perform LBT and / or transmit the PRS at the granularity of the PRS subband. On the other hand, considering that the PRS in positioning can come from multiple base stations, the subbands for successful PRS LBT and the actual transmitted PRS bandwidth may differ across base stations. This will inevitably affect the assumptions of the positioning frequency layer, and how this affects the bandwidth requires further discussion. The PRS bandwidth is generally configured in the positioning frequency layer and can also be understood as the bandwidth of the positioning frequency layer, configured by the LPP higher-layer parameter 'dl-PRS-ResourceBandwidth-r16'. The LBT bandwidth is generally the basic bandwidth for LBT in the frequency dimension for the base station or terminal, typically 20MHz. PRS subbands can be understood as further blocks of PRS bandwidth, with each block being a PRS subband.

[0062] The positioning reference signal processing method provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0063] Figure 2 This is one of the flowcharts illustrating the positioning reference signal processing method provided in the embodiments of this application, such as... Figure 2 As shown, the method includes the following steps:

[0064] Step 200: The first terminal performs the first operation based on the sub-band configuration information and / or bandwidth configuration information of the downlink positioning reference signal;

[0065] The first operation includes at least one of the following:

[0066] Detect the downlink positioning reference signal on at least one sub-band;

[0067] Process the downlink positioning reference signal on at least one sub-band.

[0068] In this application, the downlink positioning reference signal is a downlink reference signal used for positioning. The downlink positioning reference signal includes a PRS (Pressure Signal Reference) and other reference signals used for positioning, including, but not limited to, at least one of a Channel State Information-Reference Signal (CSI-RS), a Synchronization Signal and PBCH Block (SSB), a Tracking Reference Signal (TRS), and a Demodulation Reference Signal (DMRS). It is worth noting that this application only uses PRS as an example to illustrate the positioning reference signal processing method; other downlink reference signals used for positioning can also be implemented in the same way, and therefore will not be described in detail.

[0069] It is understandable that the first terminal detects the existence of the downlink positioning reference signal in at least one subband and / or processes the downlink positioning reference signal in at least one subband based on the subband configuration information and / or bandwidth configuration information of the downlink positioning reference signal.

[0070] Optionally, in an unlicensed frequency band, the first terminal performs the first operation based on the subband configuration information and / or bandwidth configuration information of the downlink positioning reference signal.

[0071] Among them, PRS is not limited to Uu's PRS, but also includes the PRS of the sidelink.

[0072] The sub-band in this application, namely the downlink positioning reference signal sub-band, can be an evenly distributed sub-band or a sliding sub-band.

[0073] Each downlink positioning reference signal (PRS) subband represents one consecutive downlink positioning reference signal transmission opportunity in the frequency domain. That is, the UE should assume that either there is no PRS transmission in the PRS subband, or there is continuous PRS transmission; there are no non-continuous PRS transmissions. For example, if the PRS subband contains multiple LBT bandwidths, PRS will only be transmitted if all LBT bandwidths successfully transmit.

[0074] The downlink positioning reference signal bandwidth includes at least one downlink positioning reference signal sub-band. Alternatively, the positioning frequency layer bandwidth includes at least one downlink positioning reference signal sub-band.

[0075] Optionally, the sub-band configuration information can be configured by the network device, pre-configured by the network device, configured by the second terminal, pre-configured by the second terminal, agreed upon by the protocol, or pre-defined by the protocol. For example, it can be obtained through configuration of the LTE Positioning Protocol (LPP) or resource pool configuration in Sidelink.

[0076] The network device can 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 the sidelink, or a roadside unit (RSU), or a control node in the sidelink.

[0077] Optionally, after a PRS is detected in at least one subband, the first terminal processes the PRS on at least one subband. Optionally, the processing can also be equivalent to measurement.

[0078] Optionally, processing the PRS can involve first caching the PRS and then performing frequency domain calculations. Alternatively, it can be done by caching and processing simultaneously, or by processing it directly.

[0079] In the embodiments of this application, the terminal detects and / or processes the downlink positioning reference signal on at least one sub-band according to the sub-band configuration information and / or bandwidth configuration information of the downlink positioning reference signal, which can effectively reduce the transmission overhead of the unlicensed frequency band positioning reference signal in the frequency domain.

[0080] Optionally, the sub-band configuration information includes at least one of the following:

[0081] Subband bandwidth;

[0082] Number of sub-bands;

[0083] Sub-band identifier.

[0084] Optionally, the subband bandwidth can contain an integer multiple of the number of subbands. For example, by default (according to the protocol), the subband bandwidth can contain 1 subband, and the PRS bandwidth is equal to the subband bandwidth. In this case, the PRS subband configuration can be left blank.

[0085] Optionally, the subband bandwidth is N Physical Resource Blocks (PRBs). For example, PRS can be detected and / or processed at a granularity of 4 PRBs.

[0086] Optionally, the subband bandwidth can be an integer multiple of or equal to the LBT bandwidth. For example, the PRS subband bandwidth can be set to the LBT bandwidth by default. In this case, the PRS subband configuration can be left blank.

[0087] Optionally, the bandwidth of the subbands can be left unconfigured when configuring the number of subbands.

[0088] The sub-band identifier is the identifier of the downlink positioning reference signal sub-band. For example, the lowest frequency domain position of the sub-band is identified by 0, and the highest is identified by N-1 (assuming the number of sub-bands is N). The N sub-bands are arranged from low to high, their frequency domain positions do not overlap, and adjacent sub-bands are continuous in the frequency domain.

[0089] Optionally, the bandwidth configuration information includes at least one of the following:

[0090] PRS bandwidth;

[0091] PRS starting bandwidth location;

[0092] PRS subcarrier space (SCS);

[0093] PRS center frequency;

[0094] Locate the frequency layer reference point A.

[0095] Optionally, the detection and / or processing of PRS on at least one sub-band includes:

[0096] At each candidate location of the downlink positioning reference signal, the downlink positioning reference signal is detected and / or processed at the sub-band level.

[0097] In this context, a candidate position for a downlink positioning reference signal represents a downlink positioning reference signal transmission opportunity in the time domain.

[0098] One PRS candidate location represents one PRS transmission opportunity in the time domain (time-continuous).

[0099] PRS candidate locations can be referred to as PRS time-domain candidate locations. PRS time-domain candidate locations can be configured per positioning frequency layer, per TRP, per PRS resource set, per PRS resource, per UE, or per UE group.

[0100] Alternatively, the PRS time-domain candidate locations are consistent with the subband configuration. That is, the subband configuration is also per positioning frequency layer, per TRP, per PRS resource set, per PRS resource, per UE, or per UE group, consistent with the PRS time-domain candidate location configuration.

[0101] If the PRS is periodic, then a PRS period contains at least one PRS time-domain candidate location.

[0102] In the embodiments of this application, the terminal detects and / or processes the downlink positioning reference signal on at least one sub-band, based on the sub-band configuration information and / or bandwidth configuration information of the downlink positioning reference signal, with the sub-band as the granularity. This improves the success rate of the terminal receiving the positioning reference signal in the unlicensed frequency band and effectively reduces the transmission overhead of the positioning reference signal in the frequency domain in the unlicensed frequency band.

[0103] Optionally, the subband configuration information is configured per positioning frequency layer, per transmit / receive point (TRP), per positioning reference signal resource set (PRS resource set), per positioning reference signal resource (PRS resource), per terminal (UE), or per terminal group (UE group).

[0104] The configuration per UE or per UE group is applicable to sidelink positioning.

[0105] Optionally, the sub-band configuration information can be configured using one of the aforementioned units, which can be indicated by including the identifier of the corresponding unit in the sub-band configuration information.

[0106] Optionally, when the subband configuration information is configured on a unit of positioning frequency layer, the positioning frequency layer satisfies at least one of the following:

[0107] The subband configurations of the downlink positioning reference signal in the positioning frequency layer are the same;

[0108] The downlink positioning reference signal has a positioning frequency layer reference point A, a subcarrier spacing SCS, and the same bandwidth.

[0109] The actual bandwidth and / or actual sub-band position of the downlink positioning reference signal in the positioning frequency layer are the same or different;

[0110] Within the same positioning frequency layer, the actual PRS bandwidth and / or actual sub-band position corresponding to different periods or different PRS candidate positions may be the same or different.

[0111] Optionally, (the UE should assume) that the subband configuration of the PRS is the same for different transmitters (such as different TRPs or different UEs) in the positioning frequency layer.

[0112] Having the same subband configuration includes at least one of the following: having the same subband bandwidth, having the same subband frequency domain location, or having the same number of subbands.

[0113] The actual PRS bandwidth is the bandwidth actually sent by the PRS after LBT is successful.

[0114] Optionally, the actual PRS bandwidth and / or actual sub-band position of different transmitters in the positioning frequency layer may differ.

[0115] Optionally, the actual PRS bandwidth and / or actual sub-band position of different transmitters in the same positioning frequency layer are the same.

[0116] Optionally, within the same positioning frequency layer, the same or different actual PRS bandwidth and / or actual sub-band positions corresponding to different periods or different PRS candidate positions mean that within the same positioning frequency layer, for the same transmitter, the same actual PRS bandwidth and / or actual sub-band positions corresponding to different periods or different PRS candidate positions are the same, or they may be different.

[0117] In this embodiment, the impact on the assumptions of the positioning frequency layer is considered, as the PRS during positioning may come from multiple base stations, and the subband of the successful PRS LBT of multiple base stations and the actual PRS bandwidth may be different.

[0118] Optionally, the method further includes:

[0119] If the subband configuration information is absent or defaulted, the downlink positioning reference signal is detected and / or processed at the granularity of the downlink positioning reference signal bandwidth or the Listen-After-Speak (LBT) bandwidth.

[0120] That is, if the subband configuration information is absent or defaulted, PRS is detected and / or processed at the granularity of PRS bandwidth or LBT bandwidth.

[0121] Optionally, the detection and / or processing of PRS at the granularity of PRS bandwidth or LBT bandwidth can be agreed upon by the protocol, indicated by the network (such as 1-bit indication), or determined autonomously by the terminal.

[0122] "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 can be no subband configuration by default.

[0123] Optionally, the method further includes:

[0124] Receive first indication information, which is used to indicate the availability of subband;

[0125] The processing of the downlink positioning reference signal on at least one sub-band includes:

[0126] Based on the first indication information, process the downlink positioning reference signal on at least one available subband.

[0127] Optionally, the first terminal receives first indication information, determines at least one available subband based on the first indication information, and detects and / or processes PRS on at least one available subband.

[0128] Optionally, the first terminal determines at least one subband based on the subband configuration information and / or bandwidth configuration information of the PRS, and detects the PRS on the at least one subband; based on the first indication information, it determines at least one available subband from the at least one subband and processes the PRS on the at least one available subband.

[0129] The availability of the subband is related to the success of LBT.

[0130] Furthermore, the availability of PRS subbands can be represented in the form of a bitmap. The length of the bitmap is equal to the number of PRS subbands, and a bit of '1' in the bitmap indicates that the PRS subband is available (PRS subband LBT was successful), while a bit of '0' indicates that the PRS subband is unavailable (PRS subband LBT was unsuccessful).

[0131] Optionally, the validity period or validity period of the first indication information is at least one of the following:

[0132] The duration of a candidate position;

[0133] Duration of multiple candidate positions in one cycle;

[0134] Within the Channel Occupancy Time (COT) Duration;

[0135] The COT duration indicates a downlink (DL) and / or flexible symbol.

[0136] Optionally, the first indication information includes at least one of the following:

[0137] Transmitter / Receiver Point (TRP) identifier;

[0138] Positioning frequency layer identifier;

[0139] Terminal UE identifier;

[0140] UE group identifier;

[0141] Downlink Positioning Reference Signal Resource (PRS) identifier;

[0142] Downlink Positioning Reference Signal Resource Set (PRS) identifier.

[0143] Optionally, the first indication information is used to indicate the availability of a subband of a positioning reference signal corresponding to one of the identifiers.

[0144] Optionally, the first indication information may also indicate the availability of sub-bands of positioning reference signals corresponding to the plurality of the identifiers.

[0145] Optionally, the first indication information may include multiple of the aforementioned identifiers.

[0146] Optionally, in the first indication information, the sub-band availability indications corresponding to multiple identifiers are arranged, with each identifier's availability indication in a corresponding position. The terminal obtains the sub-band availability indication under the corresponding identifier according to this arrangement. Optionally, the arrangement can be obtained by at least one of the following: protocol agreement or network (pre)configuration.

[0147] For example, the serving base station indicates the subband availability, time-domain candidate location availability, or COT indication for multiple TRPs. After multiple TRPs are LBTed, the above information is sent to the serving base station. The serving base station's indication may carry the corresponding TRPID; or, according to the protocol agreement or network (pre)configuration, the serving base station indicates the subband availability, time-domain candidate location availability, or COT indication for the corresponding TRP in the above manner (e.g., through group common DCI).

[0148] Optionally, receiving the first indication information includes one of the following:

[0149] Receive the first indication information before each candidate position;

[0150] The first indication information is received in front of multiple candidate positions in each cycle;

[0151] After caching the PRS of multiple candidate positions, the first indication information is received;

[0152] Receive the first indication information in the authorized frequency band;

[0153] The first indication information is received, and the first indication information is carried in the payload after the second network device or the second terminal successfully performs LBT.

[0154] Optionally, the first indication information is indicated by a network device or a second terminal.

[0155] The network indication includes, but is not limited to, at least one of the following: Radio Resource Control (RRC), Media Access Control-Control Element (MAC CE), Downlink Control Information (DCI), LTE Location Protocol (LPP), and broadcast messages.

[0156] The second terminal indication includes, but is not limited to, at least one of the following: first-level sidelink control information (SCI), second-level SCI, and PC5-RRC.

[0157] In the embodiments of this application, the terminal processes the PRS on at least one available sub-band according to the first instruction information, which can further reduce the transmission overhead of the unlicensed frequency band positioning reference signal in the frequency domain.

[0158] Optionally, the method further includes:

[0159] In the absence of the first indication information, blind detection is performed on the downlink positioning reference signals of different sub-bands;

[0160] Based on the blind detection results, the downlink positioning reference signals of different sub-bands are processed.

[0161] It is understandable 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 the PRS subband, the first terminal performs blind detection on the PRS of different subbands and processes the PRS of different subbands according to the blind detection results.

[0162] Optionally, the method further includes:

[0163] Receive indication information to indicate whether there is phase consistency between adjacent subbands.

[0164] Optionally, the method further includes:

[0165] When there is phase consistency between adjacent sub-bands, the downlink positioning reference signals of adjacent sub-bands are jointly processed.

[0166] Joint processing, also known as aggregation processing, can be understood as: simultaneously measuring the PRS of multiple sub-bands, aggregating the PRS, and increasing the effective bandwidth.

[0167] Individual processing can be understood as: simply measuring the PRS of multiple sub-bands simultaneously, without aggregation processing, calculating the PRS of each sub-band separately, and not increasing the effective bandwidth.

[0168] Optionally, if there is no phase coherence between adjacent subbands, the PRS of adjacent subbands can be processed separately.

[0169] Optionally, the indication information for indicating whether there is phase consistency between adjacent sub-bands is carried in the first indication information.

[0170] The processing of at least one downlink positioning reference signal on an available subband includes:

[0171] When there is phase consistency between adjacent available subbands, the downlink positioning reference signals of adjacent available subbands are jointly processed.

[0172] Optionally, the indication information used to indicate whether there is phase consistency between adjacent subbands may also be indicated in other information or signaling, but not in the same information or signaling as the availability of the subband.

[0173] In the embodiments of this application, when the terminal has phase consistency between adjacent sub-bands, joint processing of the PRS of adjacent sub-bands can further reduce the frequency domain overhead of unlicensed frequency band positioning reference signal transmission.

[0174] Optionally, the method further includes:

[0175] When the actual bandwidth and / or actual sub-band position of the downlink positioning reference signal corresponding to different periods or different candidate positions are different, the first terminal does not perform joint processing on the downlink positioning reference signals of multiple sub-bands.

[0176] That is, for multiple subbands with different periods or different candidate positions, if the actual bandwidth of the PRS is different and / or the actual subband position is different, the terminal does not expect to perform joint processing on the PRS of the multiple subbands.

[0177] Optionally, the transmission of downlink positioning reference signal subbands at different candidate locations may be the same, different, or independent;

[0178] The different candidate positions are multiple candidate positions within a period, or multiple candidate positions within a time window, or multiple candidate positions corresponding to an aperiodic downlink positioning reference signal.

[0179] The transmission status of the downlink positioning reference signal subband at different candidate locations is related to the LBT results.

[0180] Optionally, the first terminal should assume that the PRS transmission situation on the PRS subband at different candidate locations is one of the following:

[0181] The PRS subband transmission patterns are the same across different candidate positions. For example, the PRS transmission patterns of multiple subbands at candidate position 1 are the same as those of multiple subbands at candidate position 2.

[0182] The transmission patterns of PRS subbands differ depending on the candidate location, and may include one of the following:

[0183] (1) The transmission status of PRS subbands at different candidate positions is correlated, that is: the PRS subbands that are successfully transmitted at later candidate positions include the PRS subbands that are successfully transmitted at earlier candidate positions.

[0184] For example, if there are four subbands, and candidate position 1 has successfully transmitted data in subbands 0, 2, and 3, then subsequent candidate positions can definitely transmit successfully in subbands 0, 2, and 3, and may also transmit successfully in subband 1. Therefore, in candidate position 2, the subbands where PRS transmission is successful could be 0, 2, 3 or 0, 1, 2, 3. In candidate position 2, the UE only needs to check if PRS transmission exists in subband 1.

[0185] In later candidate positions, the UE only needs to perform detection on subbands where PRS has not been successfully transmitted.

[0186] (2) The transmission of PRS subbands at different candidate locations is completely independent.

[0187] For example: There are 4 subbands. Subbands 0, 2, and 3 were successfully transmitted at candidate position 1. Then, candidate positions after candidate position 1 may still be successfully or unsuccessfully transmitted in any subband.

[0188] Optionally, the frequency of the at least one sub-band is continuous.

[0189] Optionally, the terminal processes the PRS on at least one available sub-band, the frequencies of which are continuous. This restricts the transmission to PRS on only consecutive sub-bands.

[0190] Optionally, based on the above embodiments, the method further includes:

[0191] Receive second indication information, which is used to indicate whether the downlink positioning reference signals of multiple sub-bands are processed jointly or individually;

[0192] The processing of the downlink positioning reference signal on at least one sub-band includes:

[0193] Based on the second indication information, the downlink positioning reference signals of multiple sub-bands are processed jointly or individually.

[0194] Optionally, the second indication information includes at least one of the following:

[0195] Sending and receiving point identifiers;

[0196] Location frequency layer identifier;

[0197] Terminal identifier;

[0198] Terminal group identifier;

[0199] Positioning reference signal resource identifier;

[0200] Identifier for the location reference signal resource set.

[0201] That is, the second indication information includes at least one of the above-mentioned identifiers, used to indicate whether the PRS subbands under the corresponding identifier are processed jointly or separately.

[0202] Optionally, the second indication information may be indicated by a network device or a second terminal.

[0203] In this embodiment, the terminal determines whether to perform joint processing of PRS for multiple sub-bands based on the PRS sub-band processing instruction, which can further reduce the frequency domain overhead of unlicensed frequency band positioning reference signal transmission.

[0204] Optionally, based on the above embodiments, the method further includes:

[0205] Report downlink positioning reference signal measurement results; wherein, the downlink positioning reference signal measurement results include an indication of the downlink positioning reference signal sub-band associated with the downlink positioning reference signal measurement results;

[0206] The indication of the downlink positioning reference signal sub-band associated with the downlink positioning reference signal measurement result includes at least one of the following:

[0207] Downlink positioning reference signal sub-band identifier;

[0208] Downlink positioning reference signal candidate location identifier;

[0209] The timestamp associated with the downlink positioning reference signal measurement results;

[0210] Whether the downlink positioning reference signal measurement results have undergone joint processing.

[0211] The positioning frequency layer identifier, or transmitting / receiving point identifier, or positioning reference signal resource set identifier, or positioning reference signal resource identifier, or terminal identifier, or terminal group identifier corresponding to the downlink positioning reference signal measurement result.

[0212] Optionally, the PRS measurement results are reported; wherein the PRS measurement results include an indication of the PRS subband associated with the PRS measurement results;

[0213] The indication of the PRS sub-band associated with the PRS measurement result includes at least one of the following:

[0214] PRS sub-band identifier;

[0215] PRS candidate location identifier;

[0216] The timestamp associated with the PRS measurement results;

[0217] Whether the PRS measurement results have undergone joint processing;

[0218] The positioning frequency layer identifier, or transmitting / receiving point identifier, or positioning reference signal resource set identifier, or positioning reference signal resource identifier, or terminal identifier, or terminal group identifier corresponding to the PRS measurement result.

[0219] The PRS subband identifier indicates that the measurement result is calculated based on these PRS subbands.

[0220] The PRS time-domain candidate location identifier indicates that the measurement result is obtained from PRS calculation based on these / each PRS time-domain candidate locations.

[0221] Optionally, the reported measurement results can also indicate whether aggregation processing has been performed. For example, if there are multiple PRS subbands with frequency domain discontinuities, the UE can indicate whether it has performed aggregation processing on the frequency domain discontinuous subbands.

[0222] The embodiments of this application improve the success rate of receiving positioning reference signals by terminals in unlicensed frequency bands and reduce the transmission overhead of positioning reference signals in unlicensed frequency bands.

[0223] Figure 3 This is a second schematic flowchart of the positioning reference signal processing method provided in the embodiments of this application, as shown below. Figure 3 As shown, the method includes:

[0224] Step 300: The second network device performs Listen-Before-Speak (LBT) based on 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.

[0225] In this application, the downlink positioning reference signal is a reference signal used for positioning, including PRS and other reference signals used for positioning. This application embodiment only uses PRS as an example to illustrate the positioning reference signal processing method; other reference signals used for positioning can also be implemented in the same way, so they will not be described one by one.

[0226] Optionally, the second network device is a serving base station and / or a neighboring cell base station.

[0227] Optionally, the sub-band configuration information includes at least one of the following:

[0228] Subband bandwidth;

[0229] Number of sub-bands;

[0230] Sub-band identifier.

[0231] Optionally, the bandwidth configuration information includes at least one of the following:

[0232] PRS bandwidth;

[0233] PRS starting bandwidth location;

[0234] PRS subcarrier spacing;

[0235] PRS center frequency;

[0236] Locate the frequency layer reference point A.

[0237] Optionally, the sub-band configuration information and / or bandwidth configuration information of the positioning reference signal PRS can be determined in one of the following ways:

[0238] Subband configuration information and / or bandwidth configuration information are pre-configured or pre-defined;

[0239] The second network device determines the subband configuration information and / or bandwidth configuration information, and sends the subband configuration information and / or bandwidth configuration information to the first network device, which then configures it to the first terminal.

[0240] The first network device determines multiple sets of subband configuration information and / or bandwidth configuration information, and sends these 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.

[0241] Optionally, the second network device performs Listen-Before-Speak (LBT) in at least one subband based on the subband configuration information and / or bandwidth configuration information of the Positioning Reference Signal (PRS).

[0242] Optionally, the second network device performs a listen-before-speak (LBT) in at least one subband based on the subband configuration information and / or bandwidth configuration information of the positioning reference signal (PRS). If the channel is detected to be empty, i.e., the LBT is successful, the positioning reference signal is then transmitted in the corresponding subband.

[0243] In this embodiment of the application, the second network device performs Listen-Before-Speak (LBT) based on 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 transmission overhead of the unlicensed frequency band positioning reference signal in the frequency domain.

[0244] Optionally, sending the PRS after LBT success includes:

[0245] The downlink positioning reference signal is transmitted when 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 are successfully LBT'd.

[0246] Optionally, the PRS is sent only if the PRS subband bandwidth includes at least one LBT bandwidth and all LBT bandwidths within the PRS subband range have successfully undergone LBT. That is, the second network device only sends the PRS if all LBT bandwidths within the PRS subband range have successfully undergone LBT.

[0247] Optionally, the step of performing a listen-before-speak LBT, or sending a downlink positioning reference signal after a successful LBT, includes:

[0248] LBT is performed at the level of the next line positioning reference signal sub-band, or PRS is sent after LBT is successful.

[0249] Optionally, the second network device performs LBT and / or transmits PRS at the PRS subband level, transmitting at least one subband of PRS at a time (simultaneously).

[0250] Optionally, if the PRS subband bandwidth is the same as the LBT bandwidth (for example, a case where there is no PRS subband configuration by default), the second network device performs LBT at the LBT bandwidth granularity, or sends PRS after LBT is successful.

[0251] Optionally, if the PRS subband bandwidth is the same as the PRS bandwidth (e.g., another case where there is no PRS subband by default), the second network device performs LBT at the PRS bandwidth granularity, or sends the PRS after the LBT is successful. That is, the second network device can only send the PRS if all LBT bandwidth within the PRS bandwidth is successfully LBTed.

[0252] Optionally, if multiple PRS subbands successfully LBT, the second network device will send a PRS only if the frequency domains of the multiple subbands are consecutive.

[0253] Optionally, the method further includes:

[0254] The successful transmission of the downlink positioning reference signal subband information is reported to the first network device.

[0255] The downlink positioning reference signal transmission success subband information includes at least one of the following:

[0256] Downlink positioning reference signal sub-band identifier;

[0257] Downlink positioning reference signal candidate location identifier;

[0258] The timestamp associated with the downlink positioning reference signal measurement results.

[0259] Optionally, the method further includes:

[0260] Report the successful PRS transmission subband information to the first network device;

[0261] The PRS transmission success subband information includes at least one of the following:

[0262] PRS sub-band identifier;

[0263] PRS candidate location identifier;

[0264] The timestamp associated with the PRS measurement results.

[0265] Optionally, the method further includes:

[0266] 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.

[0267] That is, if the second network device determines the PRS subband configuration independently, the second network device will send the subband configuration information to the first network device (such as a location server).

[0268] Optionally, the method further includes:

[0269] If the subband configuration information is absent or defaulted, the second network device performs LBT at the granularity of the downlink positioning reference signal bandwidth or LBT bandwidth, or sends the downlink positioning reference signal after successful LBT.

[0270] It is understandable 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.

[0271] Optionally, the behavior of the second network device in performing LBT or sending PRS after successful LBT, with PRS bandwidth or LBT bandwidth as the granularity, can be instructed by the first network device, agreed upon by the protocol, or determined autonomously.

[0272] Optionally, the method further includes:

[0273] The second network device sends a first instruction message to the first terminal and / or the first network device;

[0274] Wherein, the first indication information is used to indicate the availability of the sub-band, or,

[0275] The first indication information is used to indicate the availability of subbands and whether adjacent subbands have phase consistency.

[0276] In one implementation, the second network device indicates the availability of the subband to the first terminal and / or the first network device.

[0277] In one implementation, the second network device indicates the availability of a subband and whether adjacent subbands have phase consistency to the first terminal and / or the first network device. If the second network device indicates to the first terminal that adjacent subbands have phase consistency, the first terminal will perform joint processing on the PRS of multiple adjacent available subbands.

[0278] In this embodiment of the application, the second network device sends an availability indication of the PRS subband to the first terminal and / or the first network device, which enables the terminal to process the PRS on at least one available subband according to the availability indication of the PRS subband, which can further reduce the transmission overhead of the unlicensed frequency band positioning reference signal in the frequency domain.

[0279] Optionally, the method further includes:

[0280] The second network device sends a second instruction message to the first terminal and / or the first network device;

[0281] The second indication information is used to indicate whether the downlink positioning reference signals of multiple sub-bands are processed jointly or individually.

[0282] In this embodiment of the application, the second network device sends a PRS subband processing instruction to the first terminal and / or the first network device, which enables the first terminal to determine whether to perform joint processing of PRS for multiple subbands according to the PRS subband processing instruction, and can further reduce the frequency domain overhead of unlicensed frequency band positioning reference signal transmission.

[0283] Figure 4 This is the third flowchart illustrating the positioning reference signal processing method provided in this application embodiment. Figure 4 As shown, the method includes:

[0284] Step 400: The second terminal performs Listen-Before-Speak (LBT) based on 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.

[0285] In this embodiment of the application, the second terminal may be another UE in the Sidelink, or an RSU, or a control node in the Sidelink.

[0286] Optionally, the sub-band configuration information includes at least one of the following:

[0287] Subband bandwidth;

[0288] Number of sub-bands;

[0289] Sub-band identifier.

[0290] Optionally, the bandwidth configuration information includes at least one of the following:

[0291] PRS bandwidth;

[0292] PRS starting bandwidth location;

[0293] PRS subcarrier spacing;

[0294] PRS center frequency;

[0295] Locate the frequency layer reference point A.

[0296] Optionally, the sub-band configuration information and / or bandwidth configuration information of the positioning reference signal PRS can be determined in one of the following ways:

[0297] Subband configuration information and / or bandwidth configuration information are pre-configured or pre-defined;

[0298] The second terminal determines the sub-band configuration information and / or bandwidth configuration information, and sends the sub-band configuration information and / or bandwidth configuration information to the first network device, which then configures it to the first terminal.

[0299] The first network device determines multiple sets of subband configuration information and / or bandwidth configuration information, and sends these 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.

[0300] Optionally, the second terminal performs Listen-Before-Speak (LBT) in at least one subband based on the subband configuration information and / or bandwidth configuration information of the Positioning Reference Signal (PRS).

[0301] Optionally, the second terminal performs Listen-Before-Speak (LBT) in at least one subband based on the subband configuration information and / or bandwidth configuration information of the Positioning Reference Signal (PRS). If the channel is detected to be empty, i.e., the LBT is successful, the positioning reference signal is then transmitted in the corresponding subband.

[0302] In the embodiments of this application, the second terminal performs Listen-Before-Speak (LBT) based on 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 transmission overhead of the unlicensed frequency band positioning reference signal in the frequency domain.

[0303] Optionally, sending the downlink positioning reference signal S after successful LBT includes:

[0304] The second terminal sends a downlink positioning reference signal if 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 are successfully LBT'd.

[0305] That is, the second terminal will only send PRS if all LBT bandwidths within the PRS subband range are successfully LBT-ed.

[0306] Optionally, the transmission may involve either listening before speaking (LBT) or sending a PRS after a successful LBT, including:

[0307] LBT is performed at the granularity of the downlink positioning reference signal sub-band, or the downlink positioning reference signal is sent after LBT is successful.

[0308] Optionally, the second terminal performs LBT at the PRS sub-band level, or, after successful LBT, sends PRS at the PRS sub-band level, sending at least one sub-band of PRS at a time (simultaneously).

[0309] Optionally, if the PRS subband bandwidth is the same as the LBT bandwidth (for example, a case where there is no PRS subband configuration by default), the second terminal performs LBT at the LBT bandwidth granularity, or sends PRS after LBT is successful.

[0310] Optionally, if the PRS subband bandwidth is the same as the PRS bandwidth (e.g., another case where there is no PRS subband by default), the second terminal performs LBT at the PRS bandwidth granularity, or sends the PRS after the LBT is successful. That is, the second terminal can only send the PRS if all LBT bandwidth within the PRS bandwidth is successfully LBTed.

[0311] Optionally, if multiple PRS subbands successfully LBT, the second terminal will send PRS only if the frequency domains of the multiple subbands are consecutive.

[0312] Optionally, the method further includes:

[0313] The second terminal reports the successful transmission of the downlink positioning reference signal subband information to the first network device.

[0314] The downlink positioning reference signal transmission success subband information includes at least one of the following:

[0315] Downlink positioning reference signal sub-band identifier;

[0316] Downlink positioning reference signal candidate location identifier;

[0317] The timestamp associated with the downlink positioning reference signal measurement results.

[0318] Optionally, the method further includes:

[0319] 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.

[0320] That is, if the second terminal independently determines the PRS subband configuration, the second terminal will send the subband configuration information to the first network device (such as a location server).

[0321] Optionally, the method further includes:

[0322] If the subband configuration information is absent or defaulted, the second terminal performs LBT or sends downlink positioning reference signal after LBT is successful, with the downlink positioning reference signal bandwidth or LBT bandwidth as the granularity.

[0323] It is understandable 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.

[0324] Optionally, the method further includes:

[0325] The second terminal sends a first instruction message to the first terminal and / or the first network device;

[0326] Wherein, the first indication information is used to indicate the availability of the downlink positioning reference signal subband, or,

[0327] The first indication information is used to indicate the availability of subbands and whether adjacent subbands have phase consistency.

[0328] Optionally, whether adjacent subbands have phase coherence can also be indicated separately in another message or signaling, and is not necessarily indicated in the same message or signaling as availability.

[0329] In one implementation, the second terminal indicates the availability of the subband to the first terminal and / or the first network device.

[0330] In one implementation, the second terminal indicates the availability of a subband and whether adjacent subbands have phase consistency to the first terminal and / or the first network device. If the second terminal indicates that adjacent subbands have phase consistency, the first terminal performs joint processing on the PRS of multiple subbands.

[0331] In this embodiment of the application, the second terminal sends an availability indication of the PRS subband to the first terminal and / or the first network device, which enables the terminal to process the PRS on at least one available subband according to the availability indication of the PRS subband, and can further reduce the transmission overhead of the unlicensed frequency band positioning reference signal in the frequency domain.

[0332] Optionally, the method further includes:

[0333] The second terminal sends a second instruction message to the first terminal and / or the first network device;

[0334] The second indication information is used to indicate whether the downlink positioning reference signals of multiple sub-bands are processed jointly or individually.

[0335] In this embodiment, the second terminal sends a PRS subband processing instruction to the first terminal and / or the first network device, which enables the terminal to determine whether to perform joint processing of PRS for multiple subbands based on the PRS subband processing instruction, thereby further reducing the frequency domain overhead of unlicensed frequency band positioning reference signal transmission.

[0336] Figure 5 This is the fourth flowchart illustrating the positioning reference signal processing method provided in the embodiments of this application. Figure 5 As shown, the method includes:

[0337] Step 500: The first network device sends the sub-band 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.

[0338] Optionally, the first network device is a location server.

[0339] The location server can be a Location Management Function (LMF) network element, an Evolved Serving Mobile Location Center (E-SMLC), or other servers with location calculation capabilities.

[0340] 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.

[0341] Optionally, the first network device determines multiple sets of subband configuration information and / or bandwidth configuration information, and sends these 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 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.

[0342] In this embodiment of the 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 can improve the transmission efficiency of the positioning reference signal and reduce transmission overhead.

[0343] Optionally, the method further includes at least one of the following:

[0344] Receive the downlink positioning reference signal measurement results reported by the first terminal;

[0345] Receive downlink positioning reference signal transmission success subband information reported by the second network device or the second terminal;

[0346] Receive subband configuration information and / or bandwidth configuration information sent by a second network device or a second terminal;

[0347] Receive first instruction information sent by a second network device or a second terminal;

[0348] Receive second instruction information sent by a second network device or a second terminal;

[0349] Send the first instruction information to the first terminal;

[0350] Send the second instruction information to the first terminal.

[0351] Wherein, the first indication information is used to indicate the availability of the sub-band, or the first indication information is used to indicate the availability of the sub-band and whether adjacent sub-bands have phase consistency;

[0352] The second indication information is used to indicate whether the PRS of multiple subbands is processed jointly or individually.

[0353] Optionally, the first indication information includes at least one of the following:

[0354] Transmitter / Receiver Point (TRP) identifier;

[0355] Positioning frequency layer identifier;

[0356] Terminal UE identifier;

[0357] UE group identifier;

[0358] Downlink Positioning Reference Signal Resource (PRS) identifier;

[0359] Downlink Positioning Reference Signal Resource Set (PRS) identifier.

[0360] Optionally, the second indication information includes at least one of the following:

[0361] Sending and receiving point identifiers;

[0362] Location frequency layer identifier;

[0363] Terminal identifier;

[0364] Terminal group identifier;

[0365] Downlink positioning reference signal resource identifier;

[0366] Downlink positioning reference signal resource set identifier.

[0367] Optionally, the PRS measurement result includes an indication of the PRS subband associated with the PRS measurement result;

[0368] The indication of the PRS sub-band associated with the PRS measurement result includes at least one of the following:

[0369] PRS sub-band identifier;

[0370] PRS candidate location identifier;

[0371] The timestamp associated with the PRS measurement results;

[0372] Whether the PRS measurement results have undergone joint processing.

[0373] Optionally, the PRS transmission success subband information includes at least one of the following:

[0374] PRS sub-band identifier;

[0375] PRS candidate location identifier;

[0376] The timestamp associated with the PRS measurement results.

[0377] It should be noted that the understanding of the positioning reference signal processing method in the embodiments of this application can be referred to the description in the foregoing embodiments, and will not be repeated here.

[0378] Figure 6 This is the fifth flowchart illustrating the positioning reference signal processing method provided in the embodiments of this application. Figure 6 As shown, the method includes:

[0379] Step 600: The terminal sends an uplink positioning reference signal in the disconnected state according to the configuration information of the uplink positioning reference signal in the disconnected state.

[0380] The configuration information of the uplink positioning reference signal in the non-connected state is received in the connected state or in the Radio Link Control (RRC) release message.

[0381] In this embodiment, the uplink positioning reference signal is an uplink reference signal used for positioning, including but not limited to a sounding reference signal (SRS), SRS for positioning, and PRACH, at least one of these. It is worth noting that this embodiment only uses SRS as an example to illustrate the positioning reference signal processing method; other uplink reference signals used for positioning can also be implemented in the same way, and therefore will not be described in detail.

[0382] Optionally, the configuration information of the uplink positioning reference signal includes, but is not limited to, at least one of the following: sub-band 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.), etc.

[0383] The non-connected state refers to the idle state and / or the inactive state.

[0384] Optionally, the configuration information of the uplink positioning reference signal is indicated by a second network device.

[0385] Optionally, sending the uplink positioning reference signal includes:

[0386] The terminal transmits the uplink positioning reference signal via beam scanning.

[0387] Among them, beam scanning refers to the different beam directions of different uplink positioning reference signal resources.

[0388] The beam scanning method can be defined by the protocol. For example, the protocol may stipulate that in the disconnected state, the terminal sends the uplink positioning reference signal in a beam scanning manner.

[0389] Optionally, the terminal transmits the uplink positioning reference signal via beam scanning, including:

[0390] According to network instructions, the terminal sends uplink positioning reference signals in a beam scanning manner;

[0391] Wherein, according to network instructions, the terminal sends uplink positioning reference signals in a beam scanning manner, including one of the following:

[0392] Without indicating the spatial beam relationship of the uplink positioning reference signal, the terminal transmits the uplink positioning reference signal in a beam scanning manner;

[0393] Without indicating the spatial beam relationship of the uplink positioning reference signal and without indicating the beam scanning transmission method, the terminal transmits the uplink positioning reference signal in the beam scanning method.

[0394] When the transmission mode of the indicated beam scanning is used, an uplink positioning reference signal is transmitted.

[0395] If the spatial beam relationship of the uplink positioning reference signal is not indicated, the terminal may transmit the uplink positioning reference signal in several default ways, such as by beam scanning or beam repetition. Here, the terminal is further instructed on which method to transmit the signal in, for example, from beam scanning or beam repetition, it is indicated that the uplink positioning reference signal is transmitted by beam scanning.

[0396] Optionally, sending the uplink positioning reference signal includes:

[0397] The terminal determines whether the configuration information of the uplink positioning reference signal in the non-connected state is valid based on the validity conditions of the uplink positioning reference signal configuration. The validity conditions of the uplink positioning reference signal configuration include at least one of the following: validity of timing advance (TA); validity of spatial beam relationship; validity of area; validity of time; validity of path loss reference signal.

[0398] Optionally, "area valid" means that if the terminal is in a pre-configured / defined area (such as a cell receiving an RRC release message or uplink positioning reference signal, or multiple pre-defined cells), then the area is valid (the uplink positioning reference signal configuration is in a valid area). Optionally, if the terminal moves out of a pre-configured / defined area (such as a cell receiving an RRC release message or uplink positioning reference signal, or multiple pre-defined cells), then the area is invalid. Optionally, if the area is invalid, then the uplink positioning reference signal configuration is invalid.

[0399] Optionally, "time valid" means that the uplink positioning reference signal configuration / update command (such as an RRCrelease message) has not exceeded a certain pre-configured / defined time threshold / timer. Optionally, if the most recent uplink positioning reference signal configuration / update command (such as an RRCrelease message) exceeds a certain pre-configured / defined time threshold / timer, the time is invalid. Optionally, if the time expires, the uplink positioning reference signal configuration is invalid.

[0400] Optionally, time validity can be applied to certain specific configurations in the uplink positioning reference signal configuration, such as TA, or spatial relationship reference signal, etc.; or, it can be applied to all uplink positioning reference signal configurations.

[0401] Optionally, the validity of the road loss reference signal means that: if the road loss reference signal meets the measurement boundary conditions, the road loss reference signal configuration is valid; if the road loss reference signal does not meet the measurement boundary conditions, the road loss reference signal configuration is invalid.

[0402] Optionally, the uplink positioning reference signal configuration is valid only if all validity conditions are met, namely, the validity of Timing Advance (TA), the validity of spatial beam relationship, the validity of area, the validity of time, and the validity of path loss reference signal. Alternatively, if any validity condition is not met, the uplink positioning reference signal configuration is invalid, meaning the configuration information of the uplink positioning reference signal in the non-connected state is invalid.

[0403] If the configuration information of the uplink positioning reference signal in the disconnected state is valid, the uplink positioning reference signal is transmitted according to the configuration information of the uplink positioning reference signal in the disconnected state; or, if the configuration information of the uplink positioning reference signal in the disconnected state is invalid, the terminal terminates the transmission of the uplink positioning reference signal with the configuration information of the uplink positioning reference signal in the disconnected state or releases the invalid positioning reference signal configuration.

[0404] Optionally, if the uplink positioning configuration fails (e.g., premature timing failure, spatial beam relationship failure, area failure, time failure, or path loss reference signal failure at least one of these), the terminal will notify the network device (e.g., the serving base station and / or location server) of the configuration failure information. The network device will then notify other base stations participating in the positioning to release the uplink positioning reference signal configuration. Optionally, the failure information includes the reason for the failure, such as at least one of the following: premature timing 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 will notify the network device of the failure information, and the network device will then notify other base stations participating in the positioning to release the uplink positioning reference signal configuration. Optionally, the terminal can notify the network side of the failure information by transmitting small data or initiating a connection to enter a connected state.

[0405] Optionally, some faulty information network devices and terminals share the same understanding (such as time-based failure). When such an event occurs (such as time-based failure), the network device can directly notify other base stations participating in positioning to release the uplink positioning reference signal configuration without requiring the terminal to notify of the failure.

[0406] Optionally, when the network device is a serving base station, the serving base station notifies other base stations participating in the positioning to release the uplink positioning reference signal configuration. This notification can be relayed through a location server (e.g., the serving base station notifies the location server, which then notifies the other base stations), or it can be notified directly.

[0407] Optionally, the method further includes:

[0408] The terminal determines the validity of the timing advance (TA) and / or spatial beam relationship based on the measurement results of the target reference signal and / or changes in the measurement results;

[0409] If the measurement results and / or changes in the measurement results exceed or fall below the target threshold, the timing advance (TA) and / or spatial beam relationship configuration is determined to be faulty.

[0410] Optionally, the change in the measurement result of the target reference signal refers to the change in the measurement result between the current measurement result and the time when the UE receives the most recent uplink positioning reference signal, or when the UE just enters the non-connected state configuration, or when the UE just receives the timing advance command or configuration.

[0411] Optionally, the validity of the timing alignment (TA) can be determined not only by the target reference signal measurement result or its change, but also by the TA timer (Timing Alignment Timer). The TA timer can start from the most recent TA command or the configuration of the uplink positioning reference signal. The TA timer can be protocol-defined or network-indicated (e.g., included in the uplink positioning reference signal configuration). When the TA timer expires, the TA fails. Optionally, the TA fails when either the TA timer expires or any condition of the target reference signal measurement result / change is met.

[0412] Optionally, the target threshold may be agreed upon by a protocol or indicated by the network (e.g., included in the uplink positioning reference signal configuration).

[0413] Optionally, the measurement results include at least one of the following:

[0414] Reference Signal Receiving Power (RSRP);

[0415] Reference Signal Received Quality (RSRQ);

[0416] Time Difference of Arrival (TDOA);

[0417] Reference signal timing;

[0418] RSRP corresponding to the first path of the reference signal.

[0419] Optionally, the target reference signal includes at least one of the following:

[0420] Reference signals or reference signal groups configured for TA validity determination;

[0421] Spatial relationship reference signal or reference signal group configured for uplink positioning reference signal;

[0422] A path loss reference signal or reference signal group configured for the uplink positioning reference signal;

[0423] Reference signals or reference signal groups that are associated with system information block type 1SIB1.

[0424] Optionally, the target reference signal includes, but is not limited to, at least one of: SSB, CSI-RS, and PRS.

[0425] Optionally, the target reference is the reference signal of the stationed cell. Optionally, the stationed cell is the cell that receives the uplink positioning reference signal configuration or RRC release message.

[0426] Optionally, the target reference signal can be filtered based on measurement quality, for example, a reference signal with a measurement quality (RSRP) higher than a threshold can be selected as the target reference signal.

[0427] Optionally, the validity of the spatial beam relationship includes:

[0428] The spatial beam relationship is valid if the measurement accuracy of the spatial relationship reference signal or reference signal group detected by the terminal is not lower than the boundary conditions of the spatial relationship reference signal.

[0429] Alternatively, if the terminal detects that the spatial relationship reference signal or reference signal group of the uplink positioning reference signal satisfies the boundary conditions of the spatial relationship reference signal, the spatial beam relationship is valid.

[0430] Optionally, the boundary conditions include at least one of the following: the accuracy of L1-RSRP, the accuracy of L3-RSRP, and the accuracy of RSRP of the spatial relationship reference signal.

[0431] The spatial relationship reference signal shall include at least one of the following: SSB, PRS, and CSI-RS.

[0432] Optionally, the method further includes:

[0433] If the spatial beam relationship fails, the terminal sends an uplink positioning reference signal in a beam scanning manner or in a beam repetition manner.

[0434] Optionally, the signal may be transmitted in a beam scanning or repeating manner, as agreed upon by the protocol or instructed by the network device.

[0435] Optionally, the multiple base stations participating in the positioning will measure the uplink positioning reference signal according to the configuration of the uplink positioning reference signal. (The base station configuring 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 the multiple base stations participating in the positioning.)

[0436] Optionally, if a base station fails to measure (e.g., the RSRP of the positioning reference signal is below a threshold, or the accuracy requirements cannot be met), it notifies the location server of the failure information (including the reason for the failure). Optionally, the base station releases the uplink positioning reference signal configuration.

[0437] The location server determines whether the uplink positioning reference signal configuration is valid (e.g., whether an accurate location can be obtained) based on the failure information and / or measurement results of each base station. If it fails, the server notifies the base station that originally configured the uplink positioning reference signal of the uplink positioning reference signal configuration failure information and / or an uplink positioning reference signal configuration update request.

[0438] Based on this information, the base station originally configured with the uplink positioning reference signal initiates Radio Access Network (RAN) paging to notify the terminal to enter connected state and further update the uplink positioning reference signal configuration and / or complete uplink positioning; alternatively, the base station initiates RAN paging, notifying the UE of the uplink positioning reference signal configuration information (e.g., carried in the paging PDSCH, or only notifying the update information through paging, notifying the UE to enter the Small Data Transmission (SDT) procedure, and updating the uplink positioning reference signal configuration information in the SDT procedure), without entering connected state; or, the base station initiates MT-SDT, notifying the UE of the uplink positioning reference signal configuration information, without entering connected state. After receiving the message sent by the base station, the terminal releases the invalidated uplink positioning reference signal configuration.

[0439] In this embodiment, the terminal sends an 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.

[0440] It should be noted that the positioning reference signal processing method provided in this application embodiment can be executed by a positioning reference signal processing device, or by a control module within the positioning reference signal processing device for executing the positioning reference signal processing method. This application embodiment uses the execution of the positioning reference signal processing method by a positioning reference signal processing device as an example to illustrate the positioning reference signal processing device provided in this application embodiment.

[0441] Figure 7 This is one of the structural schematic diagrams of the positioning reference signal processing device provided in the embodiments of this application, such as... Figure 7 As shown, the positioning reference signal processing device 700 includes:

[0442] The first execution unit 701 is configured to perform a first operation based on the sub-band configuration information and / or bandwidth configuration information of the downlink positioning reference signal;

[0443] The first operation includes at least one of the following:

[0444] Detect the downlink positioning reference signal on at least one sub-band;

[0445] Process the downlink positioning reference signal on at least one sub-band.

[0446] In the embodiments of this application, the downlink positioning reference signal is detected and / or processed 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 transmission overhead of the unlicensed frequency band positioning reference signal in the frequency domain.

[0447] Optionally, the sub-band configuration information includes at least one of the following:

[0448] Subband bandwidth;

[0449] Number of sub-bands;

[0450] Sub-band identifier.

[0451] Optionally, the detection and / or processing of the downlink positioning reference signal on at least one sub-band includes:

[0452] At each candidate location of the downlink positioning reference signal, the downlink positioning reference signal is detected and / or processed at the sub-band level.

[0453] In this context, a candidate position for a downlink positioning reference signal represents a downlink positioning reference signal transmission opportunity in the time domain.

[0454] In the embodiments of this application, the terminal detects and / or processes the downlink positioning reference signal on at least one sub-band, based on the sub-band configuration information and / or bandwidth configuration information of the downlink positioning reference signal, with the sub-band as the granularity. This improves the success rate of the terminal receiving the positioning reference signal in the unlicensed frequency band and effectively reduces the transmission overhead of the positioning reference signal in the frequency domain in the unlicensed frequency band.

[0455] Optionally, the subband configuration information is configured on a unit of positioning frequency layer, or on a unit of transmit / receive point (TRP), or on a unit of downlink positioning reference signal resource set, or on a unit of downlink positioning reference signal resource, or on a unit of terminal, or on a unit of terminal group.

[0456] Optionally, when the subband configuration information is configured on a unit of positioning frequency layer, the positioning frequency layer satisfies at least one of the following:

[0457] The subband configurations of the downlink positioning reference signal in the positioning frequency layer are the same;

[0458] The positioning reference signal has a positioning frequency layer reference point A, a subcarrier spacing SCS, and the same bandwidth.

[0459] The actual bandwidth and / or actual sub-band position of the downlink positioning reference signal in the positioning frequency layer are the same or different;

[0460] Within the same positioning frequency layer, the actual PRS bandwidth and / or actual sub-band position corresponding to different periods or different PRS candidate positions may be the same or different.

[0461] Optionally, the device further includes:

[0462] The second execution unit is used to detect and / or process the downlink positioning reference signal with the downlink positioning reference signal bandwidth or LBT bandwidth as the granularity when the subband configuration information is absent or default.

[0463] Optionally, the device further includes:

[0464] The first receiving unit is configured to receive first indication information, which is used to indicate the availability of the subband;

[0465] The processing of the downlink positioning reference signal on at least one sub-band includes:

[0466] Based on the first indication information, process the downlink positioning reference signal on at least one available subband.

[0467] Optionally, the validity period or validity period of the first indication information is at least one of the following:

[0468] The duration of a candidate position;

[0469] Duration of multiple candidate positions in one cycle;

[0470] Within the Channel Occupancy Time (COT) Duration;

[0471] The COT duration indicates a downlink DL and / or a flexible flexilble symbol.

[0472] Optionally, the first indication information includes at least one of the following:

[0473] Sending and receiving point identifiers;

[0474] Location frequency layer identifier;

[0475] Terminal identifier;

[0476] Terminal group identifier;

[0477] Downlink positioning reference signal resource identifier;

[0478] Downlink positioning reference signal resource set identifier.

[0479] Optionally, the first receiving unit is configured to perform one of the following:

[0480] Receive the first indication information in front of each candidate position;

[0481] The first indication information is received in front of multiple candidate positions in each cycle;

[0482] After caching downlink positioning reference signals from multiple candidate locations, the first indication information is received;

[0483] Receive the first indication information in the authorized frequency band;

[0484] The first indication information is received, and the first indication information is carried in the payload after the second network device or the second terminal successfully listens and speaks (LBT).

[0485] In the embodiments of this application, processing the downlink positioning reference signal on at least one available sub-band according to the first indication information can further reduce the transmission overhead of the unlicensed frequency band positioning reference signal in the frequency domain.

[0486] Optionally, the device further includes:

[0487] The first detection unit is used to perform blind detection of downlink positioning reference signals of different sub-bands in the absence of receiving the first indication information;

[0488] The first processing unit is used to process the downlink positioning reference signals of different sub-bands based on the blind detection results.

[0489] Optionally, the device further includes:

[0490] The second receiving unit is used to receive indication information indicating whether there is phase consistency between adjacent sub-bands.

[0491] Optionally, the device further includes:

[0492] The second processing unit is used to jointly process the downlink positioning reference signals of adjacent sub-bands when there is phase consistency between adjacent sub-bands.

[0493] In the embodiments of this application, when there is phase consistency between adjacent sub-bands, joint processing of the downlink positioning reference signals of adjacent sub-bands can further reduce the frequency domain overhead of unlicensed frequency band positioning reference signal transmission.

[0494] Optionally, the device further includes:

[0495] The third processing unit is used to avoid joint processing of downlink positioning reference signals of multiple sub-bands when the actual bandwidth and / or actual sub-band position of the downlink positioning reference signal corresponding to different periods or different candidate positions are different.

[0496] Optionally, the transmission of downlink positioning reference signal subbands at different candidate locations may be the same, different, or independent;

[0497] The different candidate positions are multiple candidate positions within a period, or multiple candidate positions within a time window, or multiple candidate positions corresponding to an aperiodic downlink positioning reference signal.

[0498] The transmission status of the downlink positioning reference signal subband at different candidate locations is related to the LBT results.

[0499] Optionally, the frequency of the at least one sub-band is continuous.

[0500] Optionally, the device further includes:

[0501] The third receiving unit is used to receive the second indication information, which is used to indicate whether the downlink positioning reference signals of multiple sub-bands are processed jointly or individually.

[0502] The processing of the downlink positioning reference signal on at least one sub-band includes:

[0503] Based on the second indication information, the downlink positioning reference signals of multiple sub-bands are processed jointly or individually.

[0504] In the embodiments of this application, by determining whether to jointly process the downlink positioning reference signals of multiple subbands according to the downlink positioning reference signal subband processing indication, the frequency domain overhead of unlicensed frequency band positioning reference signal transmission can be further reduced.

[0505] Optionally, the device further includes:

[0506] The first transmitting unit is used to report downlink positioning reference signal measurement results; wherein, the downlink positioning reference signal measurement results include an indication of the downlink positioning reference signal sub-band associated with the downlink positioning reference signal measurement results;

[0507] The indication of the downlink positioning reference signal sub-band associated with the downlink positioning reference signal measurement result includes at least one of the following:

[0508] Downlink positioning reference signal sub-band identifier;

[0509] Downlink positioning reference signal candidate location identifier;

[0510] The timestamp associated with the downlink positioning reference signal measurement results;

[0511] Whether the downlink positioning reference signal measurement results have undergone joint processing;

[0512] The positioning frequency layer identifier, or transmitting / receiving point identifier, or positioning reference signal resource set identifier, or positioning reference signal resource identifier, or terminal identifier, or terminal group identifier corresponding to the downlink positioning reference signal measurement result.

[0513] The embodiments of this application improve the success rate of receiving positioning reference signals by terminals in unlicensed frequency bands and reduce the transmission overhead of positioning reference signals in unlicensed frequency bands.

[0514] The positioning reference signal processing device in this application embodiment can be a device, a device or electronic device with an operating system, or a component, integrated circuit, or chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminals 11 listed above, while a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not specifically limit the type of terminal.

[0515] The positioning reference signal processing device provided in this application embodiment can achieve... Figure 2 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0516] Figure 8 This is a second schematic diagram of the positioning reference signal processing device provided in an embodiment of this application. Figure 8 As shown, the positioning reference signal processing device 800 includes:

[0517] The third execution unit 801 is used to perform listen-before-speak (LBT) based on the subband configuration information and / or bandwidth configuration information of the downlink positioning reference signal, or to send the downlink positioning reference signal after the LBT is successful.

[0518] In the embodiments of this application, listening before speaking (LBT) is performed based on the subband configuration information and / or bandwidth configuration information of the downlink positioning reference signal, or the downlink positioning reference signal is sent after the LBT is successful, which can effectively reduce the transmission overhead of the unlicensed frequency band positioning reference signal in the frequency domain.

[0519] Optionally, sending a downlink positioning reference signal after successful LBT includes:

[0520] The downlink positioning reference signal is transmitted when 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 are successfully LBT'd.

[0521] Optionally, the step of performing a listen-before-speak LBT, or sending a downlink positioning reference signal after a successful LBT, includes:

[0522] LBT is performed at the granularity of the downlink positioning reference signal sub-band, or, after LBT is successful, the downlink positioning reference signal is sent at the granularity of the downlink positioning reference signal sub-band.

[0523] Optionally, the device further includes:

[0524] The second transmitting unit is used to report the successful transmission subband information of the downlink positioning reference signal to the first network device;

[0525] The downlink positioning reference signal transmission success subband information includes at least one of the following:

[0526] Downlink positioning reference signal sub-band identifier;

[0527] Downlink positioning reference signal candidate location identifier;

[0528] The timestamp associated with the downlink positioning reference signal measurement results.

[0529] Optionally, the device further includes:

[0530] The third sending unit is used to send the sub-band configuration information and / or bandwidth configuration information to the first network device.

[0531] Optionally, the device further includes:

[0532] The fourth execution unit is used to perform LBT or send the downlink positioning reference signal after LBT success, with the downlink positioning reference signal bandwidth or LBT bandwidth as the granularity, when the subband configuration information is absent or default.

[0533] Optionally, the device further includes:

[0534] The fourth sending unit is used to send first indication information to the first terminal and / or the first network device;

[0535] Wherein, the first indication information is used to indicate the availability of the sub-band, or,

[0536] The first indication information is used to indicate the availability of subbands and whether adjacent subbands have phase consistency.

[0537] In the embodiments of this application, by sending an availability indication of the downlink positioning reference signal subband to the first terminal and / or the first network device, the terminal can process the downlink positioning reference signal on at least one available subband according to the availability indication of the downlink positioning reference signal subband, which can further reduce the transmission overhead of the unlicensed frequency band positioning reference signal in the frequency domain.

[0538] Optionally, the device further includes:

[0539] The fifth sending unit is used to send second indication information to the first terminal and / or the first network device;

[0540] The second indication information is used to indicate whether the downlink positioning reference signals of multiple sub-bands are processed jointly or individually.

[0541] In this embodiment of the application, by sending a downlink positioning reference signal subband processing instruction to the first terminal and / or the first network device, the first terminal can determine whether to jointly process the downlink positioning reference signals of multiple subbands according to the downlink positioning reference signal subband processing instruction, which can further reduce the frequency domain overhead of unlicensed frequency band positioning reference signal transmission.

[0542] The positioning reference signal processing device in this application embodiment can be a device, a device or electronic device with an operating system, or a component, integrated circuit, or chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminals 11 listed above, while a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not specifically limit the type of terminal.

[0543] The positioning reference signal processing device provided in this application embodiment can achieve... Figure 3 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0544] Optionally, Figure 9 This is the third schematic diagram of the positioning reference signal processing device provided in the embodiments of this application. Figure 9 As shown, the positioning reference signal processing device 900 includes:

[0545] The fifth execution unit 901 is used to perform Listen-Before-Speak (LBT) based on the subband configuration information and / or bandwidth configuration information of the downlink positioning reference signal, or to send the downlink positioning reference signal after the LBT is successful.

[0546] In the embodiments of this application, listening before speaking (LBT) is performed based on the subband configuration information and / or bandwidth configuration information of the downlink positioning reference signal, or the downlink positioning reference signal is sent after the LBT is successful, which can effectively reduce the transmission overhead of the unlicensed frequency band positioning reference signal in the frequency domain.

[0547] Optionally, sending a downlink positioning reference signal after successful LBT includes:

[0548] The downlink positioning reference signal is transmitted when 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 are successfully LBT'd.

[0549] Optionally, the step of performing a listen-before-speak LBT, or sending a downlink positioning reference signal after a successful LBT, includes:

[0550] LBT is performed at the granularity of the downlink positioning reference signal sub-band, or, after LBT is successful, the downlink positioning reference signal is sent at the granularity of the downlink positioning reference signal sub-band.

[0551] Optionally, the device further includes:

[0552] The sixth transmitting unit is used to report the successful transmission of the downlink positioning reference signal subband information to the first network device;

[0553] The downlink positioning reference signal transmission success subband information includes at least one of the following:

[0554] Downlink positioning reference signal sub-band identifier;

[0555] Downlink positioning reference signal candidate location identifier;

[0556] The timestamp associated with the downlink positioning reference signal measurement results.

[0557] Optionally, the device further includes:

[0558] The seventh sending unit is configured to send the sub-band configuration information and / or bandwidth configuration information to the first network device when the sub-band configuration information and / or bandwidth configuration information are determined.

[0559] Optionally, the device further includes:

[0560] The sixth execution unit is used to perform LBT or send the downlink positioning reference signal after successful LBT, using the downlink positioning reference signal bandwidth or LBT bandwidth as the granularity, when the subband configuration information is absent or defaulted.

[0561] Optionally, the device further includes:

[0562] The eighth sending unit is used to send first indication information to the first terminal and / or the first network device;

[0563] Wherein, the first indication information is used to indicate the availability of the sub-band, or,

[0564] The first indication information is used to indicate the availability of subbands and whether adjacent subbands have phase consistency.

[0565] In the embodiments of this application, by sending an availability indication of the downlink positioning reference signal subband to the first terminal and / or the first network device, the terminal can process the downlink positioning reference signal on at least one available subband according to the availability indication of the downlink positioning reference signal subband, which can further reduce the transmission overhead of the unlicensed frequency band positioning reference signal in the frequency domain.

[0566] Optionally, the device further includes:

[0567] The ninth sending unit is used to send second indication information to the first terminal and / or the first network device;

[0568] The second indication information is used to indicate whether the downlink positioning reference signals of multiple sub-bands are processed jointly or individually.

[0569] In this embodiment of the application, by sending a downlink positioning reference signal subband processing instruction to the first terminal and / or the first network device, the first terminal can determine whether to jointly process the downlink positioning reference signals of multiple subbands according to the downlink positioning reference signal subband processing instruction, which can further reduce the frequency domain overhead of unlicensed frequency band positioning reference signal transmission.

[0570] The positioning reference signal processing device in this application embodiment can be a device, a device or electronic device with an operating system, or a component, integrated circuit, or chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminals 11 listed above, while a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not specifically limit the type of terminal.

[0571] The positioning reference signal processing device provided in this application embodiment can achieve... Figure 4 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0572] Optionally, Figure 10 This is the fourth schematic diagram of the positioning reference signal processing device provided in the embodiments of this application, as shown below. Figure 10 As shown, the positioning reference signal processing device 1000 includes:

[0573] The seventh execution unit 1001 is used to send the sub-band 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.

[0574] In this embodiment of the 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 and the transmission overhead can be reduced.

[0575] Optionally, the method further includes an eighth execution unit for performing at least one of the following:

[0576] Receive the downlink positioning reference signal measurement results reported by the first terminal;

[0577] Receive downlink positioning reference signal transmission success subband information reported by the second network device or the second terminal;

[0578] Receive subband configuration information and / or bandwidth configuration information sent by a second network device or a second terminal;

[0579] Receive the first instruction information sent by the second network device or the second terminal;

[0580] Receive second instruction information sent by a second network device or a second terminal;

[0581] Send the first instruction information to the terminal;

[0582] Send a second instruction message to the terminal;

[0583] Wherein, the first indication information is used to indicate the availability of the sub-band, or the first indication information is used to indicate the availability of the sub-band and whether adjacent sub-bands have phase consistency;

[0584] The second indication information is used to indicate whether the downlink positioning reference signals of multiple sub-bands are processed jointly or individually.

[0585] The positioning reference signal processing device in this application embodiment can be a device, a device or electronic device with an operating system, or a component, integrated circuit, or chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminals 11 listed above, while a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not specifically limit the type of terminal.

[0586] The positioning reference signal processing device provided in this application embodiment can achieve... Figure 5 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0587] Optionally, Figure 11 This is the fifth schematic diagram of the positioning reference signal processing device provided in the embodiments of this application, as shown below. Figure 11 As shown, the positioning reference signal processing device 1100 includes:

[0588] The tenth transmitting unit 1101 is used to transmit the uplink positioning reference signal in the disconnected state according to the configuration information of the uplink positioning reference signal in the disconnected state.

[0589] The configuration information of the uplink positioning reference signal in the non-connected state is received in the connected state or in the Radio Link Control (RRC) release message.

[0590] Optionally, sending the uplink positioning reference signal includes:

[0591] The uplink positioning reference signal is transmitted via beam scanning.

[0592] Optionally, transmitting the uplink positioning reference signal via beam scanning includes:

[0593] According to network instructions, transmit uplink positioning reference signals in a beam scanning manner;

[0594] The step of transmitting the uplink positioning reference signal in a beam scanning manner according to network instructions includes one of the following:

[0595] Without indicating the spatial beam relationship of the uplink positioning reference signal, the uplink positioning reference signal is transmitted in a beam scanning manner;

[0596] Without indicating the spatial beam relationship of the uplink positioning reference signal and without indicating the transmission mode of beam scanning, the uplink positioning reference signal is transmitted in the manner of beam scanning;

[0597] When the transmission mode of the indicated beam scanning is used, an uplink positioning reference signal is transmitted.

[0598] Optionally, sending the uplink positioning reference signal includes:

[0599] The terminal determines whether the configuration information of the uplink positioning reference signal in the disconnected state is valid based on the validity conditions of the uplink positioning reference signal configuration. The validity conditions of the uplink positioning reference signal configuration include at least one of the following: timing advance TA is valid; spatial beam relationship is valid; area is valid; time is valid; path loss reference signal is valid.

[0600] If the configuration information of the uplink positioning reference signal in the disconnected state is valid, the uplink positioning reference signal is transmitted according to the configuration information of the uplink positioning reference signal in the disconnected state; or, if the configuration information of the uplink positioning reference signal in the disconnected state is invalid, the terminal terminates the transmission of the uplink positioning reference signal with the configuration information of the uplink positioning reference signal in the disconnected state or releases the invalid positioning reference signal configuration.

[0601] Optionally, the device further includes:

[0602] The ninth execution unit is used to determine the effectiveness of the timing advance (TA) and / or spatial beam relationship based on the measurement results of the target reference signal and / or changes in the measurement results;

[0603] The tenth execution unit is used to determine the configuration failure of timing advance TA and / or spatial beam relationship when the measurement result exceeds or falls below the target threshold.

[0604] Optionally, the measurement results include at least one of the following:

[0605] Reference signal received power RSRP;

[0606] Reference signal reception quality (RSRQ);

[0607] Time Difference of Arrival (TDOA)

[0608] Reference signal timing;

[0609] RSRP corresponding to the first path of the reference signal.

[0610] Optionally, the target reference signal includes at least one of the following:

[0611] Reference signals or reference signal groups configured for TA validity determination;

[0612] Spatial relationship reference signal or reference signal group configured for uplink positioning reference signal;

[0613] A path loss reference signal or reference signal group configured for the uplink positioning reference signal;

[0614] Reference signals or reference signal groups that are associated with system information block type 1SIB1.

[0615] Optionally, the validity of the spatial beam relationship includes:

[0616] When the measurement accuracy of the spatial relationship reference signal or reference signal group detected by the terminal is lower than the boundary condition of the spatial relationship reference signal, the spatial beam relationship fails.

[0617] Optionally, the device further includes:

[0618] The eleventh execution unit is used to send uplink positioning reference signals in a beam scanning manner or in a beam repetition manner when the spatial beam relationship fails.

[0619] The positioning reference signal processing device in this application embodiment can be a device, a device or electronic device with an operating system, or a component, integrated circuit, or chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminals 11 listed above, while a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not specifically limit the type of terminal.

[0620] The positioning reference signal processing device provided in this application embodiment can achieve... Figure 6 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0621] Optional, such as Figure 12 As shown, this application embodiment also provides a communication device 1200, including a processor 1201, a memory 1202, and a program or instructions stored in the memory 1202 and executable on the processor 1201. For example, when the communication device 1200 is a terminal, the program or instructions executed by the processor 1201 implement the various processes of the above-described positioning reference signal processing method embodiment and achieve the same technical effect. When the communication device 1200 is a network-side device, the program or instructions executed by the processor 1201 implement the various processes of the above-described positioning reference signal processing method embodiment and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0622] This application embodiment also provides a terminal, including a processor and a communication interface. The processor is configured to perform a first operation based on sub-band configuration information and / or bandwidth configuration information of downlink positioning reference signals. The first operation includes at least one of the following: detecting downlink positioning reference signals on at least one sub-band; and processing the downlink positioning reference signals on at least one sub-band. This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above method embodiments can be applied to this terminal embodiment and achieve the same technical effects. Specifically, Figure 13 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0623] The terminal 1300 includes, but is not limited to, at least some of the following components: radio frequency unit 1301, network module 1302, audio output unit 1303, input unit 1304, sensor 1305, display unit 1306, user input unit 1307, interface unit 1308, memory 1309, and processor 1310.

[0624] Those skilled in the art will understand that the terminal 1300 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 1310 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 13 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0625] It should be understood that, in this embodiment, the input unit 1304 may include a graphics processing unit (GPU) 13041 and a microphone 13042. The GPU 13041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 1306 may include a display panel 13061, which 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. The touch panel 13071 is also called a touch screen. The touch panel 13071 may include a touch detection device and a touch controller. Other input devices 13072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0626] In this embodiment, the radio frequency unit 1301 receives downlink data from the network-side device and processes it for the processor 1310; additionally, it sends uplink data to the network-side device. Typically, 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, etc.

[0627] The memory 1309 can be used to store software programs or instructions and various data. The memory 1309 may primarily include a program or instruction storage area and a data storage area. The program or instruction storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 1309 may include high-speed random access memory and non-volatile memory, which may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. For example, at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.

[0628] Processor 1310 may include one or more processing units; optionally, processor 1310 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications or instructions, and the modem processor mainly handles wireless communication, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 1310.

[0629] The processor 1310 is configured to perform a first operation based on the subband configuration information and / or bandwidth configuration information of the downlink positioning reference signal.

[0630] The first operation includes at least one of the following:

[0631] Detect the downlink positioning reference signal on at least one sub-band;

[0632] Process the downlink positioning reference signal on at least one sub-band.

[0633] In the embodiments of this application, the terminal detects and / or processes the downlink positioning reference signal on at least one sub-band according to the sub-band configuration information and / or bandwidth configuration information of the downlink positioning reference signal, which can effectively reduce the transmission overhead of the unlicensed frequency band positioning reference signal in the frequency domain.

[0634] Optionally, the sub-band configuration information includes at least one of the following:

[0635] Subband bandwidth;

[0636] Number of sub-bands;

[0637] Sub-band identifier.

[0638] Optionally, the detection and / or processing of the downlink positioning reference signal on at least one sub-band includes:

[0639] At each candidate location of the downlink positioning reference signal, the downlink positioning reference signal is detected and / or processed at the sub-band level.

[0640] In this context, a candidate position for a downlink positioning reference signal represents a downlink positioning reference signal transmission opportunity in the time domain.

[0641] In the embodiments of this application, the terminal detects and / or processes the downlink positioning reference signal on at least one sub-band, based on the sub-band configuration information and / or bandwidth configuration information of the downlink positioning reference signal, with the sub-band as the granularity. This improves the success rate of the terminal receiving the positioning reference signal in the unlicensed frequency band and effectively reduces the transmission overhead of the positioning reference signal in the frequency domain in the unlicensed frequency band.

[0642] Optionally, the subband configuration information is configured on a unit of positioning frequency layer, or on a unit of transmit / receive point (TRP), or on a unit of downlink positioning reference signal resource set, or on a unit of downlink positioning reference signal resource, or on a unit of terminal, or on a unit of terminal group.

[0643] Optionally, when the subband configuration information is configured on a unit of positioning frequency layer, the positioning frequency layer satisfies at least one of the following:

[0644] The subband configurations of the downlink positioning reference signal in the positioning frequency layer are the same;

[0645] The positioning reference signal has a positioning frequency layer reference point A, a subcarrier spacing SCS, and the same bandwidth.

[0646] The actual bandwidth and / or actual sub-band position of the downlink positioning reference signal in the positioning frequency layer are the same or different;

[0647] Within the same positioning frequency layer, the actual bandwidth and / or actual sub-band position of the downlink positioning reference signal corresponding to different periods or different candidate positions of the downlink positioning reference signal may be the same or different.

[0648] Optionally, the processor 1310 is also used for:

[0649] If the subband configuration information is absent or defaulted, the downlink positioning reference signal is detected and / or processed at the granularity of the downlink positioning reference signal bandwidth or the Listen-After-Speak (LBT) bandwidth.

[0650] Optionally, the radio frequency unit 1301 is used for:

[0651] Receive first indication information, which is used to indicate the availability of subband;

[0652] The processor 1310 is also used for:

[0653] Based on the first indication information, process at least one downlink positioning reference signal on an available subband;

[0654] Optionally, the validity period or validity period of the first indication information is at least one of the following:

[0655] The duration of a candidate position;

[0656] Duration of multiple candidate positions in one cycle;

[0657] Within the Channel Occupancy Time (COT) Duration;

[0658] The COT duration indicates a downlink DL and / or a flexible flexilble symbol.

[0659] Optionally, the first indication information includes at least one of the following:

[0660] Sending and receiving point identifiers;

[0661] Location frequency layer identifier;

[0662] Terminal identifier;

[0663] Terminal group identifier;

[0664] Downlink positioning reference signal resource identifier;

[0665] Downlink positioning reference signal resource set identifier.

[0666] Optionally, the radio frequency unit 1301 is specifically used to perform one of the following:

[0667] Receive the first indication information in front of each candidate position;

[0668] The first indication information is received in front of multiple candidate positions in each cycle;

[0669] After caching downlink positioning reference signals from multiple candidate locations, the first indication information is received;

[0670] Receive the first indication information in the authorized frequency band;

[0671] The first indication information is received, and the first indication information is carried in the payload after the second network device or the second terminal successfully performs LBT.

[0672] In the embodiments of this application, the terminal processes the downlink positioning reference signal on at least one available sub-band according to the first indication information, which can further reduce the transmission overhead of the unlicensed frequency band positioning reference signal in the frequency domain.

[0673] Optionally, the processor 1310 is also used for:

[0674] In the absence of the first indication information, blind detection is performed on the downlink positioning reference signals of different sub-bands;

[0675] Based on the blind detection results, the downlink positioning reference signals of different sub-bands are processed.

[0676] Optionally, the radio frequency unit 1301 is also used for:

[0677] Receive indication information to indicate whether there is phase consistency between adjacent subbands.

[0678] Optionally, the processor 1310 is also used for

[0679] When there is phase consistency between adjacent sub-bands, the downlink positioning reference signals of adjacent sub-bands are jointly processed.

[0680] In the embodiments of this application, when there is phase consistency between adjacent sub-bands, joint processing of the downlink positioning reference signals of adjacent sub-bands can further reduce the frequency domain overhead of unlicensed frequency band positioning reference signal transmission.

[0681] Optionally, the processor 1310 is also used for:

[0682] When the actual bandwidth and / or actual sub-band position of the downlink positioning reference signal corresponding to different periods or different candidate positions are different, the downlink positioning reference signals of multiple sub-bands are not processed jointly.

[0683] Optionally, the transmission of downlink positioning reference signal subbands at different candidate locations may be the same, different, or independent;

[0684] The different candidate positions are multiple candidate positions within a period, or multiple candidate positions within a time window, or multiple candidate positions corresponding to an aperiodic downlink positioning reference signal.

[0685] The transmission status of the downlink positioning reference signal subband at different candidate locations is related to the LBT results.

[0686] Optionally, the frequency of the at least one sub-band is continuous.

[0687] Optionally, the radio frequency unit 1301 is also used for:

[0688] Receive second indication information, which is used to indicate whether the downlink positioning reference signals of multiple sub-bands are processed jointly or individually;

[0689] The processor 1310 is also used for:

[0690] Based on the second indication information, the downlink positioning reference signals of multiple sub-bands are processed jointly or individually.

[0691] In this embodiment, the terminal determines whether to jointly process downlink positioning reference signals of multiple subbands based on the downlink positioning reference signal subband processing indication, which can further reduce the frequency domain overhead of unlicensed frequency band positioning reference signal transmission.

[0692] Optionally, the radio frequency unit 1301 is also used for:

[0693] Report downlink positioning reference signal measurement results; wherein, the downlink positioning reference signal measurement results include an indication of the downlink positioning reference signal sub-band associated with the downlink positioning reference signal measurement results;

[0694] The indication of the downlink positioning reference signal sub-band associated with the downlink positioning reference signal measurement result includes at least one of the following:

[0695] Downlink positioning reference signal sub-band identifier;

[0696] Downlink positioning reference signal candidate location identifier;

[0697] The timestamp associated with the downlink positioning reference signal measurement results;

[0698] Whether the downlink positioning reference signal measurement results have undergone joint processing;

[0699] The positioning frequency layer identifier, or transmitting / receiving point identifier, or positioning reference signal resource set identifier, or positioning reference signal resource identifier, or terminal identifier, or terminal group identifier corresponding to the downlink positioning reference signal measurement result.

[0700] The embodiments of this application improve the success rate of receiving positioning reference signals by terminals in unlicensed frequency bands and reduce the transmission overhead of positioning reference signals in unlicensed frequency bands.

[0701] Optionally, this application also provides a terminal, including a processor and a communication interface. The processor is configured to perform Listen-Before-Speak (LBT) based on subband configuration information and / or bandwidth configuration information of the downlink positioning reference signal, or to send the downlink positioning reference signal after successful LBT. This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and achieve the same technical effects. Specifically,Figure 13 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0702] The processor 1310 is used to perform Listen-Before-Speak (LBT) based on the subband configuration information and / or bandwidth configuration information of the downlink positioning reference signal, or to send the downlink positioning reference signal after the LBT is successful.

[0703] In the embodiments of this application, the terminal performs Listen-Before-Speak (LBT) based on 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 transmission overhead of the unlicensed frequency band positioning reference signal in the frequency domain.

[0704] Optionally, sending a downlink positioning reference signal after successful LBT includes:

[0705] The downlink positioning reference signal is transmitted when 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 are successfully LBT'd.

[0706] Optionally, the step of performing a listen-before-speak LBT, or sending a downlink positioning reference signal after a successful LBT, includes:

[0707] LBT is performed at the granularity of the downlink positioning reference signal sub-band, or, after LBT is successful, the downlink positioning reference signal is sent at the granularity of the downlink positioning reference signal sub-band.

[0708] Optionally, the radio frequency unit 1301 is also used for:

[0709] The successful transmission of the downlink positioning reference signal subband information is reported to the first network device.

[0710] The downlink positioning reference signal transmission success subband information includes at least one of the following:

[0711] Downlink positioning reference signal sub-band identifier;

[0712] Downlink positioning reference signal candidate location identifier;

[0713] The timestamp associated with the downlink positioning reference signal measurement results.

[0714] Optionally, the radio frequency unit 1301 is also used for:

[0715] If the subband configuration information and / or bandwidth configuration information are determined, the subband configuration information and / or bandwidth configuration information are sent to the first network device.

[0716] Optionally, the processor 1310 is also used for:

[0717] If the subband configuration information is absent or defaulted, the downlink positioning reference signal is sent after LBT is performed or after LBT is successful, with the downlink positioning reference signal bandwidth or LBT bandwidth as the granularity.

[0718] Optionally, the radio frequency unit 1301 is also used for:

[0719] Send first instruction information to the first terminal and / or the first network device;

[0720] Wherein, the first indication information is used to indicate the availability of the sub-band, or,

[0721] The first indication information is used to indicate the availability of subbands and whether adjacent subbands have phase consistency.

[0722] In the embodiments of this application, by sending an availability indication of the downlink positioning reference signal subband to the first terminal and / or the first network device, the terminal can process the downlink positioning reference signal on at least one available subband according to the availability indication of the downlink positioning reference signal subband, which can further reduce the transmission overhead of the unlicensed frequency band positioning reference signal in the frequency domain.

[0723] Optionally, the radio frequency unit 1301 is also used for:

[0724] Send a second instruction message to the first terminal and / or the first network device;

[0725] The second indication information is used to indicate whether the downlink positioning reference signals of multiple sub-bands are processed jointly or individually.

[0726] In this embodiment of the application, by sending a downlink positioning reference signal subband processing instruction to the first terminal and / or the first network device, the first terminal can determine whether to jointly process the downlink positioning reference signals of multiple subbands according to the downlink positioning reference signal subband processing instruction, which can further reduce the frequency domain overhead of unlicensed frequency band positioning reference signal transmission.

[0727] Optionally, this application also provides a terminal, including a processor and a communication interface. The communication interface is used to transmit an uplink positioning reference signal in a disconnected state according to the configuration information of the uplink positioning reference signal in the disconnected state; wherein the configuration information of the uplink positioning reference signal in the disconnected state is received in the connected state or in a Radio Link Control (RRC) release message. This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and achieve the same technical effect. Specifically, Figure 13 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0728] The radio frequency unit 1301 is used to transmit an uplink positioning reference signal in a disconnected state according to the configuration information of the uplink positioning reference signal in the disconnected state; wherein the configuration information of the uplink positioning reference signal in the disconnected state is received in the connected state or in the radio link control (RRC) release message.

[0729] Optionally, sending the uplink positioning reference signal includes:

[0730] The terminal transmits the uplink positioning reference signal via beam scanning.

[0731] Optionally, the terminal transmits the uplink positioning reference signal via beam scanning, including:

[0732] According to network instructions, the terminal sends uplink positioning reference signals in a beam scanning manner;

[0733] Wherein, according to network instructions, the terminal sends uplink positioning reference signals in a beam scanning manner, including one of the following:

[0734] Without indicating the spatial beam relationship of the uplink positioning reference signal, the terminal transmits the uplink positioning reference signal in a beam scanning manner;

[0735] Without indicating the spatial beam relationship of the uplink positioning reference signal and without indicating the beam scanning transmission method, the terminal transmits the uplink positioning reference signal in the beam scanning method.

[0736] When the transmission mode of the indicated beam scanning is used, an uplink positioning reference signal is transmitted.

[0737] Optionally, sending the uplink positioning reference signal includes:

[0738] The terminal determines whether the configuration information of the uplink positioning reference signal in the disconnected state is valid based on the validity of the uplink positioning reference signal configuration. The validity of the uplink positioning reference signal configuration includes at least one of the following: the validity of the timing advance TA; the validity of the spatial beam relationship.

[0739] If the configuration information of the uplink positioning reference signal in the disconnected state is valid, the uplink positioning reference signal is transmitted according to the configuration information of the uplink positioning reference signal in the disconnected state; or, if the configuration information of the uplink positioning reference signal in the disconnected state is invalid, the terminal terminates the transmission of the uplink positioning reference signal according to the configuration information of the uplink positioning reference signal in the disconnected state.

[0740] Optionally, the processor 1310 is also used for:

[0741] The terminal determines the validity of the uplink positioning reference signal configuration based on the measurement results and / or changes in the measurement results of the target reference signal;

[0742] If the measurement result exceeds or falls below the target threshold, it is determined that the uplink positioning reference signal configuration is invalid.

[0743] Optionally, the measurement results include at least one of the following:

[0744] Reference signal received power RSRP;

[0745] Reference signal reception quality (RSRQ);

[0746] Time Difference of Arrival (TDOA)

[0747] Reference signal timing;

[0748] RSRP corresponding to the first path of the reference signal.

[0749] Optionally, the target reference signal includes at least one of the following:

[0750] Reference signals or reference signal groups configured for TA validity determination;

[0751] Spatial relationship reference signal or reference signal group configured for uplink positioning reference signal;

[0752] A path loss reference signal or reference signal group configured for the uplink positioning reference signal;

[0753] Reference signals or reference signal groups that are associated with system information block type 1SIB1.

[0754] Optionally, the validity of the spatial beam relationship includes:

[0755] When the measurement accuracy of the reference signal or reference signal group with spatial beam relationship that the terminal detects as the uplink positioning reference signal is lower than the boundary condition of the spatial beam relationship reference signal, the spatial beam relationship fails.

[0756] Optionally, the processor 1310 is also used for:

[0757] In the event that the spatial beam relationship fails, the terminal transmits the uplink positioning reference signal in a beam scanning manner or in a beam repetition manner.

[0758] This application also provides a network-side device, including a processor and a communication interface. The processor is configured to perform Listen-Before-Speak (LBT) based on subband configuration information and / or bandwidth configuration information of the downlink positioning reference signal, or to send the downlink positioning reference signal after successful LBT. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above method embodiments can be applied to this network-side device embodiment and achieve the same technical effects.

[0759] Specifically, embodiments of this application also provide a network-side device. For example... Figure 14 As shown, the network-side device 1400 includes: an antenna 1401, a radio frequency (RF) device 1402, and a baseband device 1403. The antenna 1401 is connected to the RF device 1402. In the uplink direction, the RF device 1402 receives information through the antenna 1401 and transmits the received information to the baseband device 1403 for processing. In the downlink direction, the baseband device 1403 processes the information to be transmitted and sends it to the RF device 1402. The RF device 1402 processes the received information and transmits it through the antenna 1401.

[0760] The aforementioned frequency band processing device can be located in the baseband device 1403. The method executed by the network-side device in the above embodiments can be implemented in the baseband device 1403, which includes a processor 1404 and a memory 1405.

[0761] The baseband device 1403 may include, for example, at least one baseband board on which multiple chips are disposed, such as... Figure 14 As shown, one of the chips, for example, is a processor 1404, which is connected to a memory 1405 to call the program in the memory 1405 and execute the network device operation shown in the above method embodiment.

[0762] 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 (CPRI).

[0763] Specifically, the network-side device in this embodiment of the invention further includes: instructions or programs stored in memory 1405 and executable on processor 1404, wherein processor 1404 calls the instructions or programs in memory 1405 to execute... Figure 8 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0764] This application also provides a network-side device, including a processor and a communication interface. The communication interface is used to send sub-band configuration information and / or bandwidth configuration information of downlink positioning reference signals to a second network device, a first terminal, and / or a second terminal. This network-side device embodiment corresponds to the network-side device method embodiment described above. All implementation processes and methods of the above method embodiments can be applied to this network-side device embodiment and achieve the same technical effects.

[0765] Specifically, embodiments of this application also provide a network-side device. For example... Figure 15 As shown, the network device 1500 includes: a processor 1501, a transceiver 1502, a memory 1503, a user interface 1504, and a bus interface, wherein:

[0766] In this embodiment, the network-side device 1500 further includes a computer program stored on a memory 1503 and executable on a processor 1501. The computer program is executed by the processor 1501. Figure 10 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0767] exist Figure 15 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits together, such as one or more processors represented by processor 1501 and memory represented by memory 1503. The bus architecture can also link together various other circuits, such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 1502 can be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium. For different user equipment, the user interface 1504 can also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0768] Processor 1501 is responsible for managing the bus architecture and general processing, while memory 1503 can store the data used by processor 1501 when performing operations.

[0769] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described positioning reference signal processing method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0770] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0771] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described positioning reference signal processing method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0772] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0773] This application also provides a computer program / program product, which is stored in a non-transient storage medium. The program / program product is executed by at least one processor to implement the various processes of the above-described system message reporting method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0774] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0775] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0776] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A method for processing a positioning reference signal, characterized in that, include: The first terminal performs the first operation based on the sub-band configuration information of the downlink positioning reference signal; The first operation includes at least one of the following: Detect the downlink positioning reference signal on at least one sub-band; Processing the downlink positioning reference signal on at least one sub-band; The detection and / or processing of the downlink positioning reference signal on at least one sub-band includes: At each candidate location of the downlink positioning reference signal, the downlink positioning reference signal is detected and / or processed at the sub-band level. One downlink positioning reference signal candidate position represents one downlink positioning reference signal transmission opportunity in the time domain; When the subband configuration information is configured on a unit of positioning frequency layer, the positioning frequency layer satisfies at least one of the following: The subband configurations of the downlink positioning reference signal in the positioning frequency layer are the same; The downlink positioning reference signal has a positioning frequency layer reference point A, a subcarrier spacing SCS, and the same bandwidth. The actual bandwidth and / or actual sub-band position of the downlink positioning reference signal in the positioning frequency layer are the same or different; Within the same positioning frequency layer, the actual PRS bandwidth and / or actual sub-band positions corresponding to the same period or different PRS candidate positions may be the same or different.

2. The positioning reference signal processing method according to claim 1, characterized in that, The sub-band configuration information includes at least one of the following: Subband bandwidth; Number of sub-bands; Sub-band identifier.

3. The positioning reference signal processing method according to claim 1, characterized in that, The subband configuration information is configured on a per-transmitter / receiver point (TRP) basis, or on a per-downlink positioning reference signal resource set, or on a per-downlink positioning reference signal resource basis, or on a per-terminal basis, or on a per-terminal group basis.

4. The positioning reference signal processing method according to claim 1, characterized in that, The method further includes: If the subband configuration information is absent or defaulted, the downlink positioning reference signal is detected and / or processed at the granularity of the downlink positioning reference signal bandwidth or the Listen-After-Speak (LBT) bandwidth.

5. The positioning reference signal processing method according to claim 1, characterized in that, The method further includes: Receive first indication information, which is used to indicate the availability of subband; The processing of the downlink positioning reference signal on at least one sub-band includes: Based on the first indication information, process the downlink positioning reference signal on at least one available subband.

6. The positioning reference signal processing method according to claim 5, characterized in that, The validity period or validity period of the first indication information is at least one of the following: The duration of a candidate position; Duration of multiple candidate positions in one cycle; Within the Channel Occupancy Time (COT) Duration; The COT duration indicates a downlink DL and / or a flexible symbol.

7. The positioning reference signal processing method according to claim 5, characterized in that, The first indication information includes at least one of the following: Sending and receiving point identifiers; Location frequency layer identifier; Terminal identifier; Terminal group identifier; Downlink positioning reference signal resource identifier; Downlink positioning reference signal resource set identifier.

8. The positioning reference signal processing method according to claim 5, characterized in that, The receipt of the first indication information includes one of the following: Receive the first indication information in front of each candidate position; The first indication information is received in front of multiple candidate positions in each cycle; After caching downlink positioning reference signals from multiple candidate locations, the first indication information is received; Receive the first indication information in the authorized frequency band; The first indication information is received and is carried in the payload after the second network device or the second terminal successfully performs LBT.

9. The positioning reference signal processing method according to claim 5, characterized in that, The method further includes: In the absence of the first indication information, blind detection is performed on the downlink positioning reference signals of different sub-bands; Based on the blind detection results, the downlink positioning reference signals of different sub-bands are processed.

10. The positioning reference signal processing method according to claim 1 or 5, characterized in that, The method further includes: Receive indication information to indicate whether there is phase consistency between adjacent subbands.

11. The positioning reference signal processing method according to claim 10, characterized in that, The method further includes: When there is phase consistency between adjacent sub-bands, the downlink positioning reference signals of adjacent sub-bands are jointly processed.

12. The positioning reference signal processing method according to claim 1, characterized in that, The method further includes: When the actual bandwidth and / or actual sub-band position of the downlink positioning reference signal corresponding to different periods or different candidate positions are different, the first terminal does not perform joint processing on the downlink positioning reference signals of multiple sub-bands.

13. The positioning reference signal processing method according to claim 1, characterized in that, The frequency of at least one sub-band is continuous.

14. The positioning reference signal processing method according to claim 1 or 5, characterized in that, The method further includes: Receive second indication information, which is used to indicate whether the downlink positioning reference signals of multiple sub-bands are processed jointly or individually; The processing of the downlink positioning reference signal on at least one sub-band includes: Based on the second indication information, the downlink positioning reference signals of multiple sub-bands are processed jointly or individually.

15. The positioning reference signal processing method according to any one of claims 1-9 and 11-13, characterized in that, The method further includes: Report downlink positioning reference signal measurement results; wherein, the downlink positioning reference signal measurement results include an indication of the downlink positioning reference signal sub-band associated with the downlink positioning reference signal measurement results; The indication of the downlink positioning reference signal sub-band associated with the downlink positioning reference signal measurement result includes at least one of the following: Downlink positioning reference signal sub-band identifier; Downlink positioning reference signal candidate location identifier; The timestamp associated with the downlink positioning reference signal measurement results; Whether the downlink positioning reference signal measurement results have undergone joint processing; The positioning frequency layer identifier, or transmitting / receiving point identifier, or positioning reference signal resource set identifier, or positioning reference signal resource identifier, or terminal identifier, or terminal group identifier corresponding to the downlink positioning reference signal measurement result.

16. A method for processing a positioning reference signal, characterized in that, include: The second network device performs Listen-Before-Speak (LBT) based on the subband configuration information of the downlink positioning reference signal, and sends the downlink positioning reference signal to the first terminal after the LBT is successful, so that the first terminal performs the first operation based on the subband configuration information of the downlink positioning reference signal. The first operation includes at least one of the following: Detect the downlink positioning reference signal on at least one sub-band; Processing the downlink positioning reference signal on at least one sub-band; The detection and / or processing of the downlink positioning reference signal on at least one sub-band includes: At each candidate location of the downlink positioning reference signal, the downlink positioning reference signal is detected and / or processed at the sub-band level. One downlink positioning reference signal candidate position represents one downlink positioning reference signal transmission opportunity in the time domain; When the subband configuration information is configured on a unit of positioning frequency layer, the positioning frequency layer satisfies at least one of the following: The subband configurations of the downlink positioning reference signal in the positioning frequency layer are the same; The downlink positioning reference signal has a positioning frequency layer reference point A, a subcarrier spacing SCS, and the same bandwidth. The actual bandwidth and / or actual sub-band position of the downlink positioning reference signal in the positioning frequency layer are the same or different; Within the same positioning frequency layer, the actual PRS bandwidth and / or actual sub-band positions corresponding to the same period or different PRS candidate positions may be the same or different.

17. The positioning reference signal processing method according to claim 16, characterized in that, The step of sending a downlink positioning reference signal after successful LBT includes: The downlink positioning reference signal is transmitted when 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 are successfully LBT'd.

18. The positioning reference signal processing method according to claim 16, characterized in that, The aforementioned listening-before-speaking (LBT) and sending a downlink positioning reference signal after successful LBT include: LBT is performed at the granularity of the downlink positioning reference signal sub-band, and after LBT is successful, the downlink positioning reference signal is sent at the granularity of the downlink positioning reference signal sub-band.

19. The positioning reference signal processing method according to claim 17 or 18, characterized in that, The method further includes: The successful transmission of the downlink positioning reference signal subband information is reported to the first network device. The downlink positioning reference signal transmission success subband information includes at least one of the following: Downlink positioning reference signal sub-band identifier; Downlink positioning reference signal candidate location identifier; The timestamp associated with the downlink positioning reference signal measurement results.

20. The positioning reference signal processing method according to claim 16, characterized in that, The method further includes: The second network device sends the sub-band configuration information to the first network device.

21. The positioning reference signal processing method according to claim 16, characterized in that, The method further includes: If the subband configuration information is absent or defaulted, the second network device performs LBT or sends downlink positioning reference signal after LBT is successful, with the downlink positioning reference signal bandwidth or LBT bandwidth as the granularity.

22. The positioning reference signal processing method according to claim 16, characterized in that, The method further includes: The second network device sends a first instruction message to the first terminal and / or the first network device; Wherein, the first indication information is used to indicate the availability of the sub-band, or, The first indication information is used to indicate the availability of subbands and whether adjacent subbands have phase consistency.

23. The positioning reference signal processing method according to claim 16 or 22, characterized in that, The method further includes: The second network device sends a second instruction message to the first terminal and / or the first network device; The second indication information is used to indicate whether the downlink positioning reference signals of multiple sub-bands are processed jointly or individually.

24. A method for processing a positioning reference signal, characterized in that, include: The second terminal performs Listen-Before-Speak (LBT) based on the subband configuration information of the downlink positioning reference signal, and sends the downlink positioning reference signal to the first terminal after the LBT is successful, so that the first terminal performs the first operation based on the subband configuration information of the downlink positioning reference signal. The first operation includes at least one of the following: Detect the downlink positioning reference signal on at least one sub-band; Processing the downlink positioning reference signal on at least one sub-band; The detection and / or processing of the downlink positioning reference signal on at least one sub-band includes: At each candidate location of the downlink positioning reference signal, the downlink positioning reference signal is detected and / or processed at the sub-band level. One downlink positioning reference signal candidate position represents one downlink positioning reference signal transmission opportunity in the time domain; When the subband configuration information is configured on a unit of positioning frequency layer, the positioning frequency layer satisfies at least one of the following: The subband configurations of the downlink positioning reference signal in the positioning frequency layer are the same; The downlink positioning reference signal has a positioning frequency layer reference point A, a subcarrier spacing SCS, and the same bandwidth. The actual bandwidth and / or actual sub-band position of the downlink positioning reference signal in the positioning frequency layer are the same or different; Within the same positioning frequency layer, the actual PRS bandwidth and / or actual sub-band positions corresponding to the same period or different PRS candidate positions may be the same or different.

25. The positioning reference signal processing method according to claim 24, characterized in that, The step of sending a downlink positioning reference signal after successful LBT includes: The second terminal sends a downlink positioning reference signal if 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 are successfully LBT'd.

26. The positioning reference signal processing method according to claim 24, characterized in that, The transmission includes either listening-before-speaking (LBT) or, after successful LBT, transmitting a downlink positioning reference signal, including: LBT is performed at the granularity of the downlink positioning reference signal sub-band, or the downlink positioning reference signal is sent after LBT is successful.

27. The positioning reference signal processing method according to claim 25 or 26, characterized in that, The method further includes: The second terminal reports the successful transmission of the downlink positioning reference signal subband information to the first network device. The downlink positioning reference signal transmission success subband information includes at least one of the following: Downlink positioning reference signal sub-band identifier; Downlink positioning reference signal candidate location identifier; The timestamp associated with the downlink positioning reference signal measurement results.

28. The positioning reference signal processing method according to claim 24, characterized in that, The method further includes: The second terminal sends the sub-band configuration information to the first network device.

29. The positioning reference signal processing method according to claim 24, characterized in that, The method further includes: If the subband configuration information is absent or defaulted, the second terminal performs LBT or sends downlink positioning reference signal after LBT is successful, with the downlink positioning reference signal bandwidth or LBT bandwidth as the granularity.

30. The positioning reference signal processing method according to claim 24, characterized in that, The method further includes: The second terminal sends a first instruction message to the first terminal and / or the first network device; Wherein, the first indication information is used to indicate the availability of the downlink positioning reference signal subband, or, The first indication information is used to indicate the availability of subbands and whether adjacent subbands have phase consistency.

31. The positioning reference signal processing method according to claim 24 or 30, characterized in that, The method further includes: The second terminal sends a second instruction message to the first terminal and / or the first network device; The second indication information is used to indicate whether the downlink positioning reference signals of multiple sub-bands are processed jointly or individually.

32. A method for processing a positioning reference signal, characterized in that, include: The first network device sends the subband configuration information of the downlink positioning reference signal to the first terminal, so that the first terminal performs the first operation according to the subband configuration information of the downlink positioning reference signal; The first operation includes at least one of the following: Detect the downlink positioning reference signal on at least one sub-band; Processing the downlink positioning reference signal on at least one sub-band; The detection and / or processing of the downlink positioning reference signal on at least one sub-band includes: At each candidate location of the downlink positioning reference signal, the downlink positioning reference signal is detected and / or processed at the sub-band level. One downlink positioning reference signal candidate position represents one downlink positioning reference signal transmission opportunity in the time domain; When the subband configuration information is configured on a unit of positioning frequency layer, the positioning frequency layer satisfies at least one of the following: The subband configurations of the downlink positioning reference signal in the positioning frequency layer are the same; The downlink positioning reference signal has a positioning frequency layer reference point A, a subcarrier spacing SCS, and the same bandwidth. The actual bandwidth and / or actual sub-band position of the downlink positioning reference signal in the positioning frequency layer are the same or different; Within the same positioning frequency layer, the actual PRS bandwidth and / or actual sub-band positions corresponding to the same period or different PRS candidate positions may be the same or different.

33. The positioning reference signal processing method according to claim 32, characterized in that, The method further includes: The first network device sends the subband configuration information of the downlink positioning reference signal to the second network device and / or the second terminal.

34. The positioning reference signal processing method according to claim 32, characterized in that, The method further includes at least one of the following: Receive the downlink positioning reference signal measurement results reported by the first terminal; Receive downlink positioning reference signal transmission success subband information reported by the second network device or the second terminal; Receive subband configuration information sent by the second network device or the second terminal; Receive first instruction information sent by a second network device or a second terminal; Receive second instruction information sent by a second network device or a second terminal; Send the first instruction information to the first terminal; Send the second instruction information to the first terminal; Wherein, the first indication information is used to indicate the availability of the sub-band, or the first indication information is used to indicate the availability of the sub-band and whether adjacent sub-bands have phase consistency; The second indication information is used to indicate whether the downlink positioning reference signals of multiple sub-bands are processed jointly or individually.

35. A positioning reference signal processing device, characterized in that, include: The first execution unit is used to perform a first operation based on the sub-band configuration information of the downlink positioning reference signal; The first operation includes at least one of the following: Detect the downlink positioning reference signal on at least one sub-band; Processing the downlink positioning reference signal on at least one sub-band; The detection and / or processing of the downlink positioning reference signal on at least one sub-band includes: At each candidate location of the downlink positioning reference signal, the downlink positioning reference signal is detected and / or processed at the sub-band level. One downlink positioning reference signal candidate position represents one downlink positioning reference signal transmission opportunity in the time domain; When the subband configuration information is configured on a unit of positioning frequency layer, the positioning frequency layer satisfies at least one of the following: The subband configurations of the downlink positioning reference signal in the positioning frequency layer are the same; The downlink positioning reference signal has a positioning frequency layer reference point A, a subcarrier spacing SCS, and the same bandwidth. The actual bandwidth and / or actual sub-band position of the downlink positioning reference signal in the positioning frequency layer are the same or different; Within the same positioning frequency layer, the actual PRS bandwidth and / or actual sub-band positions corresponding to the same period or different PRS candidate positions may be the same or different.

36. A positioning reference signal processing device, characterized in that, Applied to a second network device, the device includes: The third execution unit is configured to perform Listen-Before-Speak (LBT) based on the subband configuration information of the downlink positioning reference signal, and to send the downlink positioning reference signal to the first terminal after the LBT is successful, so that the first terminal performs the first operation based on the subband configuration information of the downlink positioning reference signal. The first operation includes at least one of the following: Detect the downlink positioning reference signal on at least one sub-band; Processing the downlink positioning reference signal on at least one sub-band; The detection and / or processing of the downlink positioning reference signal on at least one sub-band includes: At each candidate location of the downlink positioning reference signal, the downlink positioning reference signal is detected and / or processed at the sub-band level. One downlink positioning reference signal candidate position represents one downlink positioning reference signal transmission opportunity in the time domain; When the subband configuration information is configured on a unit of positioning frequency layer, the positioning frequency layer satisfies at least one of the following: The subband configurations of the downlink positioning reference signal in the positioning frequency layer are the same; The downlink positioning reference signal has a positioning frequency layer reference point A, a subcarrier spacing SCS, and the same bandwidth. The actual bandwidth and / or actual sub-band position of the downlink positioning reference signal in the positioning frequency layer are the same or different; Within the same positioning frequency layer, the actual PRS bandwidth and / or actual sub-band positions corresponding to the same period or different PRS candidate positions may be the same or different.

37. A positioning reference signal processing device, characterized in that, Applied to a second terminal, the device includes: The fifth execution unit is configured to perform Listen-Before-Speak (LBT) based on the subband configuration information of the downlink positioning reference signal, and to send the downlink positioning reference signal to the first terminal after the LBT is successful, so that the first terminal performs the first operation based on the subband configuration information of the downlink positioning reference signal. The first operation includes at least one of the following: Detect the downlink positioning reference signal on at least one sub-band; Processing the downlink positioning reference signal on at least one sub-band; The detection and / or processing of the downlink positioning reference signal on at least one sub-band includes: At each candidate location of the downlink positioning reference signal, the downlink positioning reference signal is detected and / or processed at the sub-band level. One downlink positioning reference signal candidate position represents one downlink positioning reference signal transmission opportunity in the time domain; When the subband configuration information is configured on a unit of positioning frequency layer, the positioning frequency layer satisfies at least one of the following: The subband configurations of the downlink positioning reference signal in the positioning frequency layer are the same; The downlink positioning reference signal has a positioning frequency layer reference point A, a subcarrier spacing SCS, and the same bandwidth. The actual bandwidth and / or actual sub-band position of the downlink positioning reference signal in the positioning frequency layer are the same or different; Within the same positioning frequency layer, the actual PRS bandwidth and / or actual sub-band positions corresponding to the same period or different PRS candidate positions may be the same or different.

38. A positioning reference signal processing device, characterized in that, include: The seventh execution unit is used to send the sub-band configuration information of the downlink positioning reference signal to the first terminal, so that the first terminal performs a first operation according to the sub-band configuration information of the downlink positioning reference signal; The first operation includes at least one of the following: Detect the downlink positioning reference signal on at least one sub-band; Processing the downlink positioning reference signal on at least one sub-band; The detection and / or processing of the downlink positioning reference signal on at least one sub-band includes: At each candidate location of the downlink positioning reference signal, the downlink positioning reference signal is detected and / or processed at the sub-band level. One downlink positioning reference signal candidate position represents one downlink positioning reference signal transmission opportunity in the time domain; When the subband configuration information is configured on a unit of positioning frequency layer, the positioning frequency layer satisfies at least one of the following: The subband configurations of the downlink positioning reference signal in the positioning frequency layer are the same; The downlink positioning reference signal has a positioning frequency layer reference point A, a subcarrier spacing SCS, and the same bandwidth. The actual bandwidth and / or actual sub-band position of the downlink positioning reference signal in the positioning frequency layer are the same or different; Within the same positioning frequency layer, the actual PRS bandwidth and / or actual sub-band positions corresponding to the same period or different PRS candidate positions may be the same or different.

39. A terminal, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein when the program or instructions are executed by the processor, they implement the steps of the positioning reference signal processing method as described in any one of claims 1 to 15, or implement the steps of the positioning reference signal processing method as described in any one of claims 24 to 31.

40. A network-side device, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein when the program or instructions are executed by the processor, they implement the steps of the positioning reference signal processing method as described in any one of claims 16 to 23, or implement the steps of the positioning reference signal processing method as described in any one of claims 32 to 34.

41. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the positioning reference signal processing method as described in any one of claims 1 to 15, or implement the steps of the positioning reference signal processing method as described in any one of claims 16 to 23, or implement the steps of the positioning reference signal processing method as described in any one of claims 24 to 31, or implement the steps of the positioning reference signal processing method as described in any one of claims 32 to 34.

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