Positioning configuration method, uplink positioning method and device

Abstract

The invention relates to a positioning configuration method, and an uplink positioning method and device. The method comprises the following steps: sending a first request message to a distribution unit DU, wherein the first request message comprises at least one of first SRS information and SRS positioning inquiry indication information in an inactive state; the first SRS information comprises at least one of first SRS configuration and bandwidth aggregation request indication; the bandwidth aggregation request indication is used for acquiring one or more carrier aggregation configurations; receiving a first response message from a distribution unit DU; the first response message comprises at least one of second SRS information and inactive state SRS configuration information; the second SRS information comprises at least one of a second SRS configuration and a carrier aggregation configuration. According to the method and the device, the centralized unit CU can be supported to acquire related configuration information from the distributed unit DU side in a separated architecture, so that the uplink positioning requirement for the sounding reference signal SRS is met, and the influence on the positioning measurement precision is avoided.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and in particular to a positioning configuration method, an uplink positioning method, and an apparatus. Background Technology

[0002] Currently, the Sounding Reference Signal (SRS) is a signal used in wireless communication systems for uplink channel estimation. However, traditional positioning methods based on SRS signals affect the accuracy of positioning measurements. Summary of the Invention

[0003] This application provides a positioning configuration method, an uplink positioning method, and an apparatus that can avoid affecting the positioning measurement accuracy.

[0004] In a first aspect, this application provides a positioning configuration method applied to a centralized unit (CU). The method includes: sending a first request message to a distributed unit (DU), the first request message including at least one of first SRS information and inactive SRS positioning query indication information; the first SRS information including at least one of first SRS configuration and bandwidth aggregation request indication; the bandwidth aggregation request indication being used to obtain one or more carrier aggregation configurations; receiving a first response message from the distributed unit (DU); the first response message including at least one of second SRS information and inactive SRS configuration information; the second SRS information including at least one of second SRS configuration and carrier aggregation configuration.

[0005] In one embodiment, the carrier aggregation configuration includes one or more serving cell identifiers and BWP identifiers.

[0006] In one embodiment, the first SRS configuration includes at least one of SRS transmission bandwidth, synchronization signal block (SSB) cell number information, and system frame number (SFN) offset configuration; wherein, the SSB cell number information is used to indicate the SSB number of a non-cell defined synchronization signal block (NCD-SSB) in a neighboring cell or serving cell; the SRS transmission bandwidth includes the SRS transmission bandwidth corresponding to a first frequency range FR1, or the SRS transmission bandwidth corresponding to a second frequency range FR2; the SFN offset configuration includes at least one of SFN offset and integer subframe offset.

[0007] In one embodiment, the SRS transmission bandwidth corresponding to the first frequency range FR1 includes at least one of 3MHz, 5MHz, 10MHz, 15MHz, 20MHz, 25MHz, 30MHz, 35MHz, 40MHz, 45MHz, 50MHz, 60MHz, 70MHz, 80MHz, 90MHz, and 100MHz, and the SRS transmission bandwidth corresponding to the second frequency range FR2 includes at least one of 50MHz, 100MHz, 200MHz, 400MHz, 800MHz, and 1600MHz.

[0008] In one embodiment, the first request message is a location information request message; the first response message is a location information response message or a location information update message.

[0009] In one embodiment, the second SRS configuration includes at least one of at least a port configuration, at least one repetition factor, at least one SRS resource type configuration, at least one frequency hopping configuration, and at least one extended port configuration.

[0010] In one embodiment, the port configuration includes one of a 1-port, a 2-port, or a 4-port configuration; the extended port configuration includes an 8-port configuration, wherein the 8 ports are mapped to two different subsets based on Time Division Multiplexing (TDM), and the different subsets are mapped to different symbols.

[0011] In one embodiment, the frequency hopping configuration includes at least one of the following: overlap value, number of frequency hopping, frequency hopping comb offset, SRS transmission duration, SRS transmission period, SRS offset, starting SFN where the SRS is located, frequency hopping repetition mode, frequency hopping cycle offset, and frequency hopping granularity; the SRS resource type configuration includes one of the following: non-periodic configuration, semi-periodic configuration, and periodic configuration.

[0012] In one embodiment, the periodic configuration includes at least one of a period value, a time slot offset, and a periodic configuration of superframes; the non-periodic configuration includes a time slot offset; the half-periodic configuration includes at least one of a period value, a time slot offset, and a periodic configuration of superframes; the periodic configuration of superframes is used to indicate whether the superframes are even or odd when locating SRS transmission.

[0013] In one embodiment, the repetition factor includes at least one of a plurality of parameter values; the plurality of parameter values ​​are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14; the overlap value includes 0 RBs, 1 RB, 2 RBs, and 4 RBs; the number of frequency hopping numbers ranges from 1 to 6; the frequency hopping comb offset includes a frequency hopping identifier and / or a frequency hopping subset; the frequency hopping identifier ranges from 0 to 1023, and the frequency hopping subset includes 2-comb split transmission, 4-comb split transmission, or 8-comb split transmission.

[0014] In one embodiment, the inactive SRS configuration information includes at least one of an inactive SRS first configuration and an inactive SRS second configuration; the inactive SRS first configuration includes the configuration of SRS on a normal uplink NUL carrier, the configuration of SRS on a supplementary uplink SUL carrier, the bandwidth portion (BWP) configuration of the NUL carrier, the BWP configuration of the SUL carrier, the TA timer in the inactive state, and the reference signal received power (RSRP) change threshold in the inactive state; the inactive SRS second configuration includes at least one of at least an inactive SRS positioning aggregation bandwidth configuration, an SRS positioning transmit frequency hopping configuration, at least one inactive effective area pre-configuration, and at least one inactive effective area non-pre-configuration.

[0015] In one embodiment, the inactive SRS positioning aggregation bandwidth configuration includes at least one of subcarrier spacing and SRS carrier frequency; wherein the SRS carrier frequency represents the carrier frequency for the SRS resource set of bandwidth aggregation; the inactive effective area pre-configuration includes at least one of the following: at least one cell identifier, SRS positioning configuration for NUL carrier, SRS positioning configuration for SUL carrier, BWP configuration on NUL carrier, BWP configuration on SUL carrier, and TA configuration of effective area.

[0016] In one embodiment, the TA configuration of the effective area includes an inactive SRS positioning effective area TA timer, an inactive SRS positioning effective area RSRP change threshold, and indication information indicating whether TA adjustment is performed automatically.

[0017] In one embodiment, after receiving a first response message from the distribution unit (DU), the method further includes:

[0018] An interface message is sent to the distribution unit (DU). The interface message includes an RRC configuration message. The RRC configuration message includes at least one of the second SRS information and the inactive SRS configuration information. The interface message is used to instruct the distribution unit (DU) to send the RRC configuration message to the terminal. The RRC configuration message is used to instruct the terminal to complete the transmission configuration of the SRS signal.

[0019] In one embodiment, the RRC configuration message is either an RRC reconfiguration message or an RRC release message.

[0020] Secondly, this application also provides a positioning configuration method applied to a distributed unit (DU), the method comprising:

[0021] The system receives a first request message from a central unit (CU), the first request message including at least one of first SRS information and inactive SRS positioning query indication information; the first SRS information includes at least one of first SRS configuration and bandwidth aggregation request indication; the bandwidth aggregation request indication is used to obtain one or more carrier aggregation configurations; the system sends a first response message to the central unit (CU); the first response message includes at least one of second SRS information and inactive SRS configuration information; the second SRS information includes at least one of second SRS configuration and carrier aggregation configuration.

[0022] In one embodiment, the carrier aggregation configuration includes one or more serving cell identifiers and BWP identifiers.

[0023] In one embodiment, the first SRS configuration includes at least one of SRS transmission bandwidth, Synchronization Signal Block (SSB) cell number information, and System Frame Number (SFN) offset configuration; wherein, the SSB cell number information is used to indicate the SSB number of a non-cell defined synchronization signal block (NCD-SSB) in a neighboring cell or serving cell; the SRS transmission bandwidth includes the SRS transmission bandwidth corresponding to a first frequency range FR1, or the SRS transmission bandwidth corresponding to a second frequency range FR2; the SFN offset configuration includes at least one of SFN offset and integer subframe offset. In one embodiment, the SRS transmission bandwidth corresponding to the first frequency range FR1 includes at least one of 3MHz, 5MHz, 10MHz, 15MHz, 20MHz, 25MHz, 30MHz, 35MHz, 40MHz, 45MHz, 50MHz, 60MHz, 70MHz, 80MHz, 90MHz, and 100MHz, and the SRS transmission bandwidth corresponding to the second frequency range FR2 includes at least one of 50MHz, 100MHz, 200MHz, 400MHz, 800MHz, and 1600MHz.

[0024] In one embodiment, the first request message is a location information request message; the first response message is a location information response message or a location information update message.

[0025] In one embodiment, the second SRS configuration includes at least one of at least a port configuration, at least one repetition factor, at least one SRS resource type configuration, at least one frequency hopping configuration, and at least one extended port configuration.

[0026] In one embodiment, the port configuration includes one of a 1-port, a 2-port, or a 4-port configuration; the extended port configuration includes an 8-port configuration, wherein the 8 ports are mapped to two different subsets based on Time Division Multiplexing (TDM), and the different subsets are mapped to different symbols.

[0027] In one embodiment, the frequency hopping configuration includes at least one of the following: overlap value, number of frequency hopping, frequency hopping comb offset, SRS transmission duration, SRS transmission period, SRS offset, starting SFN where the SRS is located, frequency hopping repetition mode, frequency hopping cycle offset, and frequency hopping granularity; the SRS resource type configuration includes one of the following: non-periodic configuration, semi-periodic configuration, and periodic configuration.

[0028] In one embodiment, the periodic configuration includes at least one of a period value, a time slot offset, and a periodic configuration of superframes; the non-periodic configuration includes a time slot offset; the half-periodic configuration includes at least one of a period value, a time slot offset, and a periodic configuration of superframes; the periodic configuration of superframes is used to indicate whether the superframes are even or odd when locating SRS transmission.

[0029] In one embodiment, the repetition factor includes at least one of a plurality of parameter values; the plurality of parameter values ​​are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14; the overlap value includes 0 RBs, 1 RB, 2 RBs, and 4 RBs; the number of frequency hopping numbers ranges from 1 to 6; the frequency hopping comb offset includes a frequency hopping identifier and / or a frequency hopping subset; the frequency hopping identifier ranges from 0 to 1023, and the frequency hopping subset includes 2-comb split transmission, 4-comb split transmission, or 8-comb split transmission.

[0030] In one embodiment, the inactive SRS configuration information includes at least one of an inactive SRS first configuration and an inactive SRS second configuration; the inactive SRS first configuration includes the configuration of SRS on a normal uplink NUL carrier, the configuration of SRS on a supplementary uplink SUL carrier, the bandwidth portion (BWP) configuration of the NUL carrier, the BWP configuration of the SUL carrier, the TA timer in the inactive state, and the reference signal received power (RSRP) change threshold in the inactive state; the inactive SRS second configuration includes at least one of at least an inactive SRS positioning aggregation bandwidth configuration, an SRS positioning transmit frequency hopping configuration, at least one inactive effective area pre-configuration, and at least one inactive effective area non-pre-configuration.

[0031] In one embodiment, the inactive SRS positioning aggregation bandwidth configuration includes at least one of subcarrier spacing and SRS carrier frequency; wherein the SRS carrier frequency represents the carrier frequency for the SRS resource set of bandwidth aggregation; the inactive effective area pre-configuration includes at least one of the following: at least one cell identifier, SRS positioning configuration for NUL carrier, SRS positioning configuration for SUL carrier, BWP configuration on NUL carrier, BWP configuration on SUL carrier, and TA configuration of effective area.

[0032] In one embodiment, the TA configuration of the effective area includes an inactive SRS positioning effective area TA timer, an inactive SRS positioning effective area RSRP change threshold, and indication information indicating whether TA adjustment is performed automatically.

[0033] In one embodiment, after sending a first response message to the central unit CU, the method further includes: receiving an interface message from the central unit CU, the interface message including an RRC configuration message; the RRC configuration message including at least one of second SRS information and inactive SRS configuration information; and sending the RRC configuration message to a terminal, the RRC configuration message being used to instruct the terminal to complete the transmission configuration of the SRS signal.

[0034] In one embodiment, the RRC configuration message is either an RRC reconfiguration message or an RRC release message.

[0035] Thirdly, this application also provides an uplink positioning method applied to a terminal, the method comprising: receiving an RRC configuration message from a network entity, the RRC configuration message including at least one of second SRS information and inactive SRS configuration information; the second SRS information including at least one of second SRS configuration and carrier aggregation configuration.

[0036] In one embodiment, the network entity is a distribution unit (DU), a central unit (CU), or a base station.

[0037] In one embodiment, the RRC configuration message is either an RRC reconfiguration message or an RRC release message.

[0038] In one embodiment, the second SRS configuration includes at least one of at least a port configuration, at least one repetition factor, at least one SRS resource type configuration, at least one frequency hopping configuration, and at least one extended port configuration.

[0039] In one embodiment, the port configuration includes one of a 1-port, a 2-port, or a 4-port configuration; the extended port configuration includes an 8-port configuration, wherein the 8 ports are mapped to two different subsets based on Time Division Multiplexing (TDM), and the different subsets are mapped to different symbols.

[0040] In one embodiment, the frequency hopping configuration includes at least one of the following: overlap value, number of frequency hopping, frequency hopping comb offset, SRS transmission duration, SRS transmission period, SRS offset, starting SFN where the SRS is located, frequency hopping repetition mode, frequency hopping cycle offset, and frequency hopping granularity; the SRS resource type configuration includes one of the following: non-periodic configuration, semi-periodic configuration, and periodic configuration.

[0041] In one embodiment, the periodic configuration includes at least one of a period value, a time slot offset, and a periodic configuration of superframes; the non-periodic configuration includes a time slot offset; the half-periodic configuration includes at least one of a period value, a time slot offset, and a periodic configuration of superframes; the periodic configuration of superframes is used to indicate whether the superframes are even or odd when locating SRS transmission.

[0042] In one embodiment, the repetition factor includes at least one of a plurality of parameter values; the plurality of parameter values ​​are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14; the overlap value includes 0 RBs, 1 RB, 2 RBs, and 4 RBs; the number of frequency hopping numbers ranges from 1 to 6; the frequency hopping comb offset includes a frequency hopping identifier and / or a frequency hopping subset; the frequency hopping identifier ranges from 0 to 1023, and the frequency hopping subset includes 2-comb split transmission, 4-comb split transmission, or 8-comb split transmission.

[0043] In one embodiment, the inactive SRS configuration information includes at least one of an inactive SRS first configuration and an inactive SRS second configuration; the inactive SRS first configuration includes the configuration of SRS on a normal uplink NUL carrier, the configuration of SRS on a supplementary uplink SUL carrier, the bandwidth portion (BWP) configuration of the NUL carrier, the BWP configuration of the SUL carrier, the TA timer in the inactive state, and the reference signal received power (RSRP) change threshold in the inactive state; the inactive SRS second configuration includes at least one of at least an inactive SRS positioning aggregation bandwidth configuration, an SRS positioning transmit frequency hopping configuration, at least one inactive effective area pre-configuration, and at least one inactive effective area non-pre-configuration.

[0044] In one embodiment, the inactive SRS positioning aggregation bandwidth configuration includes at least one of subcarrier spacing and SRS carrier frequency; wherein the SRS carrier frequency represents the carrier frequency for the SRS resource set of bandwidth aggregation; the inactive effective area pre-configuration includes at least one of the following: at least one cell identifier, SRS positioning configuration for NUL carrier, SRS positioning configuration for SUL carrier, BWP configuration on NUL carrier, BWP configuration on SUL carrier, and TA configuration of effective area.

[0045] In one embodiment, the TA configuration of the effective area includes an inactive SRS positioning effective area TA timer, an inactive SRS positioning effective area RSRP change threshold, and indication information indicating whether TA adjustment is performed automatically.

[0046] In one embodiment, the method further includes: completing the transmission configuration of the SRS signal according to the RRC configuration message.

[0047] Fourthly, this application also provides a positioning configuration device applied to a centralized unit (CU). The device includes: a request message sending module, configured to send a first request message to a distributed unit (DU), the first request message including at least one of first SRS information and inactive SRS positioning inquiry indication information; the first SRS information including at least one of first SRS configuration and bandwidth aggregation request indication; the bandwidth aggregation request indication being used to obtain one or more carrier aggregation configurations; and a response message receiving module, configured to receive a first response message from the distributed unit (DU); the first response message including at least one of second SRS information and inactive SRS configuration information; the second SRS information including at least one of second SRS configuration and carrier aggregation configuration.

[0048] Fifthly, this application also provides a positioning configuration apparatus applied to a distributed unit (DU). The apparatus includes: a request message receiving module, configured to receive a first request message from a centralized unit (CU), the first request message including at least one of first SRS information and inactive SRS positioning inquiry indication information; the first SRS information including at least one of first SRS configuration and bandwidth aggregation request indication; the bandwidth aggregation request indication being used to acquire one or more carrier aggregation configurations; and a response message sending module, configured to send a first response message to the centralized unit (CU); the first response message including at least one of second SRS information and inactive SRS configuration information; the second SRS information including at least one of second SRS configuration and carrier aggregation configuration.

[0049] Sixthly, this application also provides an uplink positioning device applied to a terminal. The device includes: a configuration message receiving module for receiving an RRC configuration message from a network entity. The RRC configuration message includes at least one of second SRS information and inactive SRS configuration information. The second SRS information includes at least one of second SRS configuration and carrier aggregation configuration.

[0050] In a seventh aspect, this application also provides a centralized unit (CU) including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the method in the first aspect described above.

[0051] Eighthly, this application also provides a distributed unit DU, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the method in the second aspect above.

[0052] Ninthly, this application also provides a terminal, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the method in the third aspect above.

[0053] In a tenth aspect, this application also provides a communication system, including the aforementioned centralized unit CU, distributed unit DU, and terminal.

[0054] In an eleventh aspect, this application also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the methods described above.

[0055] In a twelfth aspect, this application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the methods described above.

[0056] In the aforementioned positioning configuration method, uplink positioning method, and apparatus, the centralized unit (CU) sends a first request message to the distributed unit (DU). The first request message includes at least one of first SRS information and inactive SRS positioning inquiry indication information. The first SRS information includes at least one of first SRS configuration and bandwidth aggregation request indication. The bandwidth aggregation request indication is used to obtain one or more carrier aggregation configurations. Subsequently, the centralized unit (CU) can obtain a first response message from the distributed unit (DU). The first response message includes at least one of second SRS information and inactive SRS configuration information. The second SRS information includes at least one of second SRS configuration and carrier aggregation configuration. This application can support the centralized unit (CU) obtaining relevant configuration information from the distributed unit (DU) in a split architecture. Based on the second SRS information and the inactive SRS configuration information, uplink positioning of the terminal in connected and inactive states can be achieved respectively, thereby meeting the uplink positioning requirements for the detection reference signal (SRS) and avoiding affecting the positioning measurement accuracy. Attached Figure Description

[0057] Figure 1 This is a schematic diagram of a wireless communication system that can be applied to the embodiments of this application;

[0058] Figure 2 This is a schematic diagram of a CU and DU separated architecture in one embodiment;

[0059] Figure 3 This is a flowchart illustrating the location configuration method in one embodiment;

[0060] Figure 4 This is a schematic diagram illustrating the transmission configuration process for a terminal in one embodiment;

[0061] Figure 5 This is a flowchart illustrating the location configuration method in another embodiment;

[0062] Figure 6 This is a schematic diagram illustrating the process of configuring the terminal to transmit SRS signals in one embodiment;

[0063] Figure 7 This is a signaling interaction flowchart of an uplink positioning method in one embodiment;

[0064] Figure 8 This is a structural block diagram of the positioning configuration device in one embodiment;

[0065] Figure 9 This is a structural block diagram of the positioning configuration device in another embodiment;

[0066] Figure 10 This is an internal structure diagram of an access network device in one embodiment;

[0067] Figure 11 This is a diagram of the internal structure of a terminal in one embodiment. Detailed Implementation

[0068] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0069] 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 data can be interchanged 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, the first object can be one or more. Furthermore, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Additionally, the character " / " generally indicates that the preceding and following related objects are in an "or" relationship. In the description of embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0070] The term "instruction" in this application can be either an explicit instruction or an implicit instruction. An explicit instruction can be understood as the sender clearly informing the receiver of the operation to be performed or the result to be requested in the instruction sent by the sender; an implicit instruction can be understood as the receiver making a judgment based on the instruction sent by the sender and determining the operation to be performed or the result to be requested based on the judgment result.

[0071] It is worth noting that the terms "system" and "network" in the embodiments of this application are often used interchangeably, and the described technologies can be used in the systems mentioned above as well as other systems. The following description describes a New Radio (NR) system 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) communication systems, or to next-generation mobile communication systems or other similar communication systems, without limitation.

[0072] Figure 1 This is a schematic diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 102 and a network device 104. The terminal 102 can also be referred to as a terminal device or a user equipment (UE); the terminal 102 can be a wireless terminal, which can be a device that provides voice and / or other service data connectivity to a user, or a handheld device with wireless connectivity, or other processing devices connected to a wireless modem.

[0073] For example, a wireless terminal can communicate with one or more core networks via a radio access network (RAN). The wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone), or a computer with a mobile terminal, for example, a portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile device. These devices exchange voice and / or data with the radio access network. The wireless terminal may also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, access terminal, user terminal, user agent, or user device or user equipment, without limitation herein.

[0074] Network device 104 can be an access network device, wherein the access network (AN) device can also be referred to as a radio access network node, hereinafter collectively referred to as a radio access network RAN ​​node or RAN node; exemplaryly, the access network device can be a base station with wireless communication capabilities, such as a micro base station, a macro base station, etc. The base station can be an evolved NodeB (eNB or e-NodeB) in Long Term Evolution (LTE), a base station (nextgeneration nodeB, gNB) in a 5G mobile communication network, etc., and this application embodiment does not limit it in any way. It should be noted that the embodiments of this application can be applied to 5G SA (Standalone) scenarios.

[0075] Taking 5G (5th Generation Mobile Communication Technology) systems as an example, 5G, as a new generation of wireless network technology, currently features high bandwidth, massive connectivity, low latency, and wireless cloudification. Specifically, regarding wireless cloudification, starting with Rel-15, it supports architectural designs that separate the CU (Centralized Unit) and DU (Distributed Unit), as well as the CP (Control Plane) and UP (User Plane). Figure 2 As shown in the diagram, the separation of CU and DU functions is differentiated based on the real-time nature of the processed content. CU devices include non-real-time high-layer wireless protocol stack functions, while also supporting the deployment of some core network functions and edge application services. DU devices primarily handle physical layer functions and Layer 2 functions requiring real-time performance. Building upon the CU / DU separation, to further adapt to different service requests, the CU side of the access network can be further separated into the control plane (CP) and user plane (UP). The separated CP and UP are decoupled from each other and interact through a standard E1 interface, allowing them to be deployed on different physical nodes.

[0076] Understandable. Figure 2 In this context, 5GC (5GCore) represents the 5G core network, NG-RAN (New Generation-Radio Access Network) represents the next-generation radio access network, gNB-DU can represent a separate base station entity, and gNB-CU can represent a centralized base station entity. NG represents the NG interface (the interface between the radio access network and the 5G core network), F1 represents the F1 interface (the interface connecting the CU and DU functional entities of the gNB within the NG-RAN), and Xn-C represents the Xn-C interface (used to connect two NG-RAN nodes).

[0077] Supplementary Uplink (SUL) is a technology added by 3GPP (3rd Generation Partnership Project) in 5G Release 15. A cell, whether using FDD (Frequency-division Duplex) or TDD (Time-division Duplex), contains one uplink carrier and one downlink carrier, both within the same frequency band. As mentioned earlier, in the 5G era, the uplink coverage of the UE is often the limiting factor for cell coverage. Therefore, the industry proposed SUL technology, which uses a low-frequency SUL carrier in an NR cell to ensure uplink coverage in the actual network. This means that a cell will have two carriers; for example, N41-N83 has both an NUL (Normal Uplink) carrier for N41 and an SUL carrier for N83.

[0078] SRS is a signal used in wireless communication systems (such as LTE (Long Term Evolution) and 5G NR) for uplink channel estimation. Base stations can use SRS to understand the channel state, thereby optimizing resource allocation and signal processing. It also provides accurate Channel State Information (CSI) to enable base stations to make link adaptation, beamforming, and scheduling decisions.

[0079] With the continuous advancement of 5G network construction, users' demands for 5G functions are becoming increasingly diverse. Among these, accurate location description has become a basic requirement for various industries. Application scenarios such as emergency rescue, vehicle-to-everything (V2X), intelligent manufacturing, and smart logistics are placing higher demands on positioning capabilities. In the long-term evolution of communication positioning systems, the positioning accuracy of communication systems from R9 to R11 was not high, generally ranging from 50 to 150 meters, mainly based on time-measured Time Difference of Arrival (OTDOA), UL-TDOA (Uplink Time Difference of Arrival), and Cell ID (CID). From R12 to R14, the positioning accuracy reached 10 to 100 meters, providing a solution that integrates multiple positioning technologies. Until the R15 and R16 protocols, 5G was proposed to utilize the multi-beam characteristics of Multiple Input Multiple Output (MIMO) for enhanced positioning. At the same time, positioning technologies based on cellular cells, such as RTT (Round Trip Time), DL-TDOA (Downlink Time Difference of Arrival), Angle of Arrival (AOA), and Angle of Departure (AOD), were defined, enabling positioning accuracy to reach 3-10m. On this basis, it has continued to evolve. The R17 protocol will further improve the accuracy of indoor positioning to the centimeter level to meet the needs of specific vertical industry application scenarios.

[0080] In Release 18, enhancements were made to the positioning signal, addressing requirements for high accuracy and extremely low power consumption, with battery life of one year or longer. It has been identified for IIoT (Industrial Internet of Things) use cases, such as large-scale asset tracking, AGV (Automated Guided Vehicle) tracking in industrial plants, and personnel positioning in hazardous areas. A typical scenario is use case #6 defined in TS22.104, which corresponds to tracking workpieces (indoor and outdoor) in assembly areas and warehouses, with target accuracy <1m, positioning interval of 15-30s, and battery life of 6-12 months. To support LPHAP (Low Power High Accuracy Positioning), version 18 introduces several enhancements, including: (i) enhanced SRS for positioning configuration in inactive states, for UL and UL+DL positioning, and for positioning effective areas based on SRS to avoid frequent reconfiguration of SRS for positioning when the serving cell changes; (ii) the introduction of (e) a DRX (Discontinuous Reception) period longer than 10.24 seconds in inactive states; (iii) alignment of (e) the DRX period in inactive states and DLPRS (Downlink Positioning Reference Signal) configurations; and (iv) support for measurement of DLPRS resources in idle states and reporting of the corresponding measurements in connected states.

[0081] The SRS of a positioning validity area consists of cells configured on the same carrier. These cells share common values ​​for the BWP (Bandwidth Part) parameter, i.e., position and bandwidth, subcarrier spacing, and cyclic prefix, where the positioning configuration SRS is valid in the inactive state. Furthermore, various parameters of the SRS used for positioning configuration (via SRS-PosConfig) and the SRS used for positioning resource configuration (via SRSPosResource) are typically configured in these cells. In addition, methods have been specified for determining UL timing and TA (Timing Advance) values, the spatial relationships of the SRS used for positioning, and the path loss RS (Reference Signal) for transmit power control within the SRS of the positioning validity area.

[0082] When both SRS for location configuration and SRS for location validity area are configured, if the UE reselects another cell within the SRS location validity area during SRS transmission, the UE continues SRS transmission but must accept SRS transmission verification. When the UE reselects a location validity area from the SRS during SRS transmission, the UE can send an "RRC (Radio Resource Control) Resume Request" message to the network to request SRS configuration.

[0083] The location-configured SRS in the inactive state can be pre-configured in the target device. When a configured periodic or triggered location event is detected, the target device can send an "RRC Resume Request" message to the network to request activation of the pre-configured SRS for location configuration. For multiple pre-configured SRS configurations, the UE configures only one SRS for location configuration in each valid area.

[0084] Release 17 introduced RedCap (Reduced Capability) NRUE, which reduced the maximum UE bandwidth by 20 MHz and 100 MHz in FR1 (frequency range 1) and FR2 (frequency range 2), respectively, and reduced the number of Rx antennas. As a result of the reduced maximum UE bandwidth, a decrease in achievable positioning accuracy was observed compared to conventional NRUE, prompting consideration of enhancements in Release 18, including positioning using Rx (receiver) frequency hopping to receive DLPRS and using Tx (transmitter) frequency hopping to transmit SRS, to achieve measurements across a wider bandwidth than the maximum UE bandwidth of RedCap or Release 18eRedCap UE.

[0085] Frequency-hopping reception and transmission are defined within the DLPRS resource and the SRS for location resources, with handover times between frequency hopping being shorter than the typical BWP handover time specified in Version 15. For DLRx frequency hopping, a single instance of the configured measurement gap is used to receive all hops of the DLPRS with Rx frequency hopping. For ULTx frequency hopping, the frequency hopping pattern can be configured as overlapping or non-overlapping hops, following a stepped pattern of wrapping. Furthermore, the SRS for location resources is configured outside the UE's active ULBWP configuration. In the time domain, the frequency hopping pattern of the SRS for Tx frequency hopping location can be contained within a single time slot or span multiple time slots, and can be configured as periodic, semi-persistent, and non-periodic SRS for location.

[0086] However, in order to support the acquisition of SRS signals in a discrete architecture, traditional techniques have the following problems, leading to a decrease in measurement accuracy in some scenarios:

[0087] ① SRS configuration instructions for NCD-SSB (Non-cell Defined SSB (Synchronization Signal Block)) or neighboring cells are not supported: To address the SRS spatial relationship configuration issue for mobile UEs, a method for configuring SRS spatial relationships is proposed. For a specific neighboring cell, the serving gNB only configures SRS resources and associates them with the cell ID of that neighboring cell, without configuring any SSB index. The UE determines the spatial orientation of the SRS resource based on the UE's measurement results on the SSB of the neighboring cell. For example, the UE can determine the spatial relationship between SRS and SSB based on previous RRM (Radio Resource Management) results. Similarly, for TRP (Transmission and Reception Point), the serving gNB can only configure SRS resources with PRS resource set IDs but no PRS resource IDs. The UE determines the spatial orientation of the SRS resource based on the UE positioning measurement results of the PRS DL positioning. In this way, the SRS spatial relationship configuration does not need to be updated frequently, and even if the UE moves at high speed, the UE can ensure accurate SRS direction by maintaining beam training. However, the current CU / DU specification can only indicate the SRS configuration of the local cell, and cannot indicate the NCD-SSB of the local cell or the SRS configuration measurement of neighboring cells.

[0088] ②DU cannot provide frequency hopping related configurations to CU: For example, the configuration of the inactive TA timer is missing, and the configuration of the uplink SRS transmission time window is not provided to CU. Therefore, CU cannot provide it to DU in the RRC release message, and DU cannot obtain the corresponding configuration information.

[0089] ③ Configuration information configuration for connected and inactive carrier aggregation is not supported: The relevant configuration of SRS carrier aggregation includes the uplink and downlink association. The current CU to DU specification does not support the above content. Therefore, the terminal cannot be configured with carrier aggregation status when it is inactive.

[0090] ④ Does not support the transmission of configuration information for non-periodic SRS: Non-periodic SRS includes time slot offset, NZP (non-zero power)-CSI-RS-ResourceId, etc., but the current CU to DU specification only enables non-periodic SRS transmission, which results in the CU side being unable to generate the relevant SRS configuration information.

[0091] Based on the aforementioned traditional technologies, this application embodiment enhances functionality through a new standardized approach to support uplink positioning design requirements for SRS, thereby meeting network deployment and optimization needs. Specifically, this application embodiment supports a separate architecture where the CU can obtain relevant configuration information from the DU side and instruct the DU side to maintain relevant resource configurations even when the terminal returns to an inactive state. This avoids compatibility issues between the terminal and network caused by the DU side erroneously releasing relevant resources due to its inability to recognize that the UE has returned to an inactive state, thus enabling more accurate and higher-precision positioning capabilities. Furthermore, this application embodiment does not affect the terminal, as the network-side solution has good forward compatibility and is easy to deploy and implement.

[0092] It should be noted that the beneficial effects or technical problems solved by the embodiments of this application are not limited to this one, but may also be other implicit or related problems. For details, please refer to the description of the embodiments below.

[0093] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0094] In one exemplary embodiment, such as Figure 3 As shown, a positioning configuration method is provided. Taking the application of this method to a centralized unit (CU) as an example, the method includes the following steps 202 to 204. Wherein:

[0095] Step 202: Send a first request message to the distribution unit (DU). The first request message includes at least one of first SRS information and inactive SRS location query indication information. The first SRS information includes at least one of first SRS configuration and bandwidth aggregation request indication. The bandwidth aggregation request indication is used to obtain one or more carrier aggregation configurations.

[0096] The first request message can be an interface message, such as a first intra-station interface request message. It can be understood that the centralized unit (CU) can send a request message to the distributed unit (DU) through a corresponding intra-station interface (e.g., a standardized interface or a private interface). For example, the first request message can be a positioning information request message.

[0097] For example, the centralized unit CU can be a base station centralized entity. Optionally, the base station centralized entity can include a 5G base station centralized entity or a 6G base station centralized entity, wherein the 6G base station centralized entity supports control plane and / or some user plane functions; for example, the distributed unit DU can be a base station separation entity. Optionally, the base station separation entity can include a 5G base station separation entity or a 6G base station separation entity, wherein the 6G base station separation entity supports at least some protocol layer entities such as physical layer and MAC (Media Access Control) layer entities; in some examples, the base station centralized entity and the base station separation entity are connected through a standardized interface or a private interface.

[0098] Specifically, in this embodiment of the application, the first request message may include at least one of first SRS information and inactive SRS location query indication information; wherein, the first SRS information may be used to indicate the acquisition of transmission characteristic information of the probe reference signal SRS, and optionally, the first SRS information may also be used to indicate the acquisition of SRS configuration information of the terminal in the connected state.

[0099] The first SRS information includes a first SRS configuration, which may also include a bandwidth aggregation request indication. Optionally, the bandwidth aggregation request indication is used to obtain one or more carrier aggregation configurations. For example, the carrier aggregation configuration may be an SRS carrier aggregation configuration. Optionally, the bandwidth aggregation request indication is an enumeration or a numerical value, and "yes" indicates that one or more SRS carrier aggregation configurations need to be obtained.

[0100] The inactive SRS location query indication information is used to indicate the acquisition of inactive SRS configuration information. The inactive SRS configuration information can represent the SRS configuration information of the terminal in the inactive state, so that in the split architecture, the centralized unit (CU) can obtain the relevant configuration information from the distributed unit (DU).

[0101] Furthermore, the centralized unit (CU) sends a first request message to the distributed unit (DU). This first request message can instruct the distributed unit (DU) to configure the terminal to send an SRS signal for uplink positioning measurement and / or for the distributed unit (DU) to obtain SRS configuration information. Taking the centralized unit (CU) as the base station centralized entity and the distributed unit (DU) as the base station separation entity, and the first request message as a first intra-site interface request message as an example, the base station centralized entity sends the first intra-site interface request message to the base station separation entity. This first intra-site interface request message instructs the base station separation entity to configure the terminal to send an SRS signal for uplink positioning measurement and / or for the base station separation entity to obtain SRS configuration information.

[0102] It should be noted that, regarding configuration information related to uplink positioning, in this embodiment, the centralized unit (CU) can obtain the configuration information sent by the terminal when using SRS positioning, and / or determine the configuration information that needs to be obtained from the distributed unit (DU). This embodiment does not limit the method of obtaining the configuration information. Taking the centralized unit (CU) as a base station centralized entity and the distributed unit (DU) as a base station separation entity as an example, the base station centralized entity can determine the first configuration information (at least one of first SRS information and inactive SRS positioning query indication information) sent by the terminal when using SRS positioning, and / or determine the second configuration information (e.g., at least one of second SRS information and inactive SRS configuration information) that needs to be obtained from the base station separation entity.

[0103] Step 204: Receive a first response message from the distribution unit (DU). The first response message includes at least one of second SRS information and inactive SRS configuration information. The second SRS information includes at least one of second SRS configuration and carrier aggregation configuration.

[0104] The first response message can be an interface message, such as a first intra-station interface response message. This means that the distributed unit (DU) can send a request message to the centralized unit (CU) through a corresponding intra-station interface (e.g., a standardized interface or a private interface). For example, the first response message can be a positioning information response message (POSITIONING INFORMATIONRESPONSE).

[0105] Specifically, after receiving the first request message, the distribution unit (DU) can determine the message content in the first response message based on the first SRS information and / or the inactive SRS location query indication information included in the first request message.

[0106] For example, the first response message includes second SRS information and / or inactive SRS configuration information; when the first request message carries first SRS information, the message content in the first response message includes second SRS information (e.g., SRS transmission characteristic information). When the first request message carries inactive SRS location query indication information, the message content in the first response message includes inactive SRS configuration information.

[0107] Taking a centralized unit (CU) as the centralized entity of the base station and a distributed unit (DU) as the separated entity of the base station, with the first request message being a first intra-station interface request message and the first response message being a first intra-station interface response message as an example, after receiving the first intra-station interface request message, the separated entity of the base station can determine the message content of the feedback first intra-station interface response message based on the first SRS information and / or the inactive SRS location query indication information carried in the message. When the first intra-station interface request message carries the first SRS information, the message content of the first intra-station interface response message includes the second SRS information (e.g., the second SRS configuration). When the first intra-station interface request message carries the inactive SRS location query indication information, the first intra-station interface response message needs to carry the inactive SRS configuration information (e.g., the inactive SRS first configuration or the inactive SRS second configuration).

[0108] In this embodiment, the first response message is related to the uplink positioning of the terminal. The centralized unit CU can determine the relevant SRS configuration information for uplink positioning of the terminal based on the first response message, thereby meeting the uplink positioning requirements for the detection reference signal SRS and avoiding affecting the positioning measurement accuracy.

[0109] Regarding carrier aggregation configuration, in some examples, carrier aggregation configuration may include one or more serving cell identifiers and BWP identifiers.

[0110] Specifically, carrier aggregation configuration can be used to instruct terminals to perform uplink positioning based on aggregated bandwidth in connected mode, thereby supporting more accurate positioning capabilities. The carrier aggregation configuration may include one or more serving cell identifiers and bandwidth portion (BWP) identifiers.

[0111] Taking a centralized unit (CU) as the centralized entity of the base station and a distributed unit (DU) as the separate entity of the base station, with the first request message being the first intra-station interface request message and the first response message being the first intra-station interface response message as an example, when the first SRS information carried by the first intra-station interface request message contains a bandwidth aggregation request indication, the first intra-station interface response message needs to carry a carrier aggregation configuration. The carrier aggregation configuration includes the identifiers of one or more serving cells and BWPs. The identifiers of serving cells and BWPs provide the SRS with the serving cell and BWP configuration so that the terminal can use the aggregated bandwidth for positioning transmission in the connected state.

[0112] Through the carrier aggregation configuration described above, the embodiments of this application can support multi-carrier capability, thereby supporting higher-precision positioning capability through greater bandwidth.

[0113] In practical applications, embodiments of this application can support the configuration of SRS signals in neighboring cells and IoT terminal NCD-SSB scenarios. In one embodiment, the first SRS configuration includes at least one of SRS transmission bandwidth, synchronization signal block SSB cell number information, and system frame number (SFN) offset configuration. The SSB cell number information is used to indicate the SSB number of a non-cell defined synchronization signal block NCD-SSB in a neighboring cell or serving cell, such as the cell physical layer identifier (PCI).

[0114] Specifically, the first SRS information may include one or more first SRS configurations, each of which is associated with a cell. For example, the first SRS configuration may include at least one of SRS transmission bandwidth, Synchronization Signal Block (SSB) cell number information, and SFN offset configuration.

[0115] The SSB cell number information is used to indicate the SSB number of a non-cell defined synchronization signal block (NCD-SSB) in a neighboring cell or serving cell, such as SSB cell number information #2. This application embodiment, by supporting the configuration of SRS signals in neighboring cells and IoT terminal NCD-SSB scenarios, can solve the problem that traditional solutions only associate SRS signals with the SRS of the local cell, thereby supporting more accurate positioning capabilities.

[0116] In some embodiments, the SRS transmission bandwidth may include the SRS transmission bandwidth corresponding to the first frequency range FR1 and the SRS transmission bandwidth corresponding to the second frequency range FR2; the SFN offset configuration includes at least one of the SFN offset and the integer subframe offset.

[0117] Specifically, the SRS transmission bandwidth may include the SRS transmission bandwidth corresponding to the first frequency range FR1 (hereinafter referred to as FR1 SRS transmission bandwidth) and the SRS transmission bandwidth corresponding to the second frequency range FR2 (hereinafter referred to as FR2 SRS transmission bandwidth).

[0118] For example, the FR1 SRS transmission bandwidth includes at least one of 3MHz, 5MHz, 10MHz, 15MHz, 20MHz, 25MHz, 30MHz, 35MHz, 40MHz, 45MHz, 50MHz, 60MHz, 70MHz, 80MHz, 90MHz, and 100MHz, and the FR2 SRS transmission bandwidth includes at least one of 50MHz, 100MHz, 200MHz, 400MHz, 800MHz, and 1600MHz.

[0119] For example, the SRS transmission bandwidth corresponding to the second frequency range FR2 is 1600MHz. Optionally, the SRS transmission bandwidth corresponding to the first frequency range FR1 includes 3MHz.

[0120] Furthermore, the SFN offset configuration may include at least one of the SFN offset and the integer subframe offset.

[0121] In one embodiment, the first request message is a location information request message; the first response message is a location information response message or a location information update message.

[0122] Specifically, regarding the location information request message, the location information request message can be the POSITIONING INFORMATION REQUEST in the 5G system or the location information request message in the 6G system. It is used to indicate to the distribution unit DU that the UE needs to be configured to send SRS signals for uplink positioning measurements, and it also needs to retrieve the SRS configuration from the gNB DU.

[0123] Furthermore, the first response message is a location information response message or a location information update message. The location information response message can be a POSITIONING INFORMATION RESPONSE message in the 5G system, and the location information update message can be a POSITIONING INFORMATION UPDATE message in the 5G system. Alternatively, the location information response message can be a location information response message in the 6G system, used to respond to request messages or configure or update SRS information and provide it to the central unit CU.

[0124] In some embodiments, the second SRS configuration includes at least one of at least a port configuration, at least one repetition factor, at least one SRS resource type configuration, at least one frequency hopping configuration, and at least one extended port configuration.

[0125] Specifically, the second SRS configuration may include at least one of the following: one or more port configurations, one or more repetition factors, one or more SRS resource type configurations, one or more frequency hopping configurations, and one or more extended port configurations.

[0126] In one embodiment, the port configuration may include one of a 1-port, a 2-port, or a 4-port configuration; the extended port configuration includes an 8-port configuration, wherein the 8 ports are mapped to two different subsets based on Time Division Multiplexing (TDM), and the different subsets are mapped to different symbols.

[0127] Specifically, the port configuration may include one of port 1, port 2, or port 4, and the extended port may include at least one of port 8 or port 8TDM. Port 8 indicates that the terminal is configured with 8 ports, and port 8TDM indicates that the 8 ports are mapped to two different subsets, and the different subsets are mapped to different symbols.

[0128] Furthermore, through the second SRS configuration, based on at least one of one or more repetition factors, one or more SRS resource type configurations, and one or more frequency hopping configurations, the embodiments of this application can support frequency hopping capability, thereby supporting higher-precision positioning capability through frequency hopping. It can be understood that, combined with the above-mentioned carrier aggregation configurations, this application can support frequency hopping and multi-carrier capabilities, and support higher-precision positioning capability through frequency hopping and greater bandwidth.

[0129] In one embodiment, the repetition factor includes at least one of a plurality of parameter values; the SRS resource type configuration includes one of the following: aperiodic configuration, semi-periodic configuration, and periodic configuration; the frequency hopping configuration includes at least one of the following: overlap value, number of frequency hopping, frequency hopping comb offset, SRS transmission duration, SRS transmission period, SRS offset, starting SFN where the SRS is located, frequency hopping repetition mode, frequency hopping cycle offset, and frequency hopping granularity.

[0130] Specifically, the repetition factor may include multiple parameter values; in some examples, the multiple parameter values ​​are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, that is, the repetition factor may include at least one of 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14.

[0131] SRS resource type configuration can be at least one of periodic configuration, aperiodic configuration, and semi-periodic configuration. For example, SRS resource type configuration is periodic configuration. The periodic configuration can include at least one of period value, slot offset, and periodic configuration of superframe. The aperiodic configuration can include slot offset. The semi-periodic configuration includes at least one of period value, slot offset, and periodic configuration of superframe (hyper SFN). Optionally, the periodic configuration of superframe is used to determine whether the superframe is an even number of superframes or an odd number of superframes when the SRS is transmitted.

[0132] Frequency hopping configuration may include at least one of the following: overlap value, number of frequency hopping, frequency hopping comb offset, SRS transmission duration, SRS transmission period, SRS offset, starting SFN where the SRS is located, frequency hopping repetition mode, frequency hopping cycle offset, and frequency hopping granularity. For example, frequency hopping configuration may include overlap value, number of frequency hopping, frequency hopping comb offset, SRS transmission duration, SRS transmission period, SRS offset, starting SFN where the SRS is located, frequency hopping repetition mode, frequency hopping cycle offset, and frequency hopping granularity.

[0133] The overlap value can include 0 RBs (Resource Blocks), 1 RB, 2 RBs, and 4 RBs; the frequency hopping number can range from 1 to 6; the frequency hopping comb offset can include a frequency hopping identifier and / or a frequency hopping subset, wherein the frequency hopping identifier can range from 0 to 1023, and the frequency hopping subset can include 2-comb split transmission, 4-comb split transmission, or 8-comb split transmission; the frequency hopping repetition mode represents the configured frequency hopping behavior for a repetition factor in a time domain, including symbol-level or repetition configurations; the frequency hopping cycle offset can include a frequency hopping identifier and / or a frequency hopping subset, wherein the frequency hopping subset includes 2-comb split transmission, 4-comb split transmission, or 8-comb split transmission.

[0134] Furthermore, when the frequency hopping granularity is "yes", the generated sequence of SRS... K is 2 if it is 2 otherwise it is 1, where, This represents the cyclic shift frequency hopping of the generated sequence, where K represents the frequency hopping range.

[0135] SRS transmission duration indicates the duration of uplink SRS used to locate the frequency hopping transmission window, and the value can include 1 time slot, 2 time slots, 4 time slots, and 6 time slots; SRS transmission period and offset (SRS transmission period and SRS offset) indicate the periodicity and time slot offset of uplink SRS that occur in the frequency hopping transmission window.

[0136] In practical applications, based on the inactive SRS configuration information, this application can instruct the DU side to maintain the relevant resource configuration when the terminal returns to the inactive state, thereby avoiding compatibility issues between the terminal and the network caused by the DU side erroneously releasing relevant resources due to its inability to recognize that the UE has returned to the inactive state. Regarding the inactive SRS configuration information, in one embodiment, the inactive SRS configuration information may include at least one of an inactive SRS first configuration and an inactive SRS second configuration.

[0137] Specifically, the inactive SRS location query indication information can be used to instruct the retrieval of inactive SRS configuration information. When the distributed unit (DU) receives a first request message carrying the inactive SRS location query indication information, the first response message contains either the inactive SRS first configuration or the inactive SRS second configuration. For example, the inactive SRS configuration information includes both the inactive SRS first configuration and the inactive SRS second configuration. The inactive SRS location query indication information indicates a need to retrieve the terminal's SRS configuration information when it is inactive.

[0138] Taking a centralized unit (CU) as the centralized entity of the base station and a distributed unit (DU) as the separated entity of the base station, with the first request message being a first intra-station interface request message and the first response message being a first intra-station interface response message as an example, after receiving the first intra-station interface request message, if the first intra-station interface request message carries inactive SRS location query indication information, then the first intra-station interface response message will contain either an inactive SRS first configuration or an inactive SRS second configuration. For example, when the inactive SRS location query indication information is "yes" or carried, the base station separated entity will carry either the inactive SRS first configuration or the inactive SRS second configuration in the first intra-station interface response message.

[0139] In one embodiment, the inactive SRS first configuration includes the configuration of SRS on the normal uplink NUL carrier, the configuration of SRS on the supplementary uplink SUL carrier, the bandwidth portion (BWP) configuration of the NUL carrier, the BWP configuration of the SUL carrier, the TA timer in the inactive state, and the change threshold of the Reference Signal Receiving Power (RSRP) in the inactive state.

[0140] The second configuration of the inactive SRS includes one of the following: at least one inactive SRS positioning aggregation bandwidth configuration, SRS positioning transmission frequency hopping configuration, at least one inactive effective area pre-configuration, and at least one inactive effective area non-pre-configuration.

[0141] Specifically, the inactive SRS first configuration includes the SRS configuration on the NUL carrier, the SRS configuration on the SUL carrier, the BWP configuration on the NUL (BWP configuration of the NUL carrier), the BWP configuration on the SUL (BWP configuration of the SUL carrier), the TA timer in the inactive state, and the RSRP change threshold in the inactive state.

[0142] The inactive SRS second configuration may include at least one of the following: one or more inactive SRS location aggregation bandwidth configurations, SRS location transmission frequency hopping configurations, one or more inactive valid area pre-configurations, and one or more inactive valid area non-pre-configurations. For example, the inactive SRS second configuration includes two inactive SRS location aggregation bandwidth configurations, an SRS location transmission frequency hopping configuration, one inactive valid area pre-configuration, and one inactive valid area non-pre-configuration. Optionally, the inactive SRS second configuration includes one inactive SRS location aggregation bandwidth configuration, an SRS location transmission frequency hopping configuration, two inactive valid area pre-configurations, and two inactive valid area non-pre-configurations.

[0143] In one embodiment, the inactive SRS location aggregation bandwidth configuration includes at least one of subcarrier spacing and SRS carrier frequency; wherein the SRS carrier frequency represents the carrier frequency for the SRS resource set of bandwidth aggregation;

[0144] The pre-configuration of the inactive valid area includes one of the following: at least one cell identifier, SRS positioning configuration for NUL carrier, SRS positioning configuration for SUL carrier, BWP configuration on NUL carrier, BWP configuration on SUL carrier, and TA configuration of the valid area.

[0145] Specifically, the inactive SRS positioning aggregation bandwidth configuration includes at least one of subcarrier spacing and SRS carrier frequency; wherein the SRS carrier frequency indicates the carrier frequency of the SRS resource set linked for bandwidth aggregation. For example, the inactive SRS positioning aggregation bandwidth configuration includes subcarrier spacing and SRS carrier frequency.

[0146] The pre-configuration of the inactive valid area may include at least one of the following: cell identifier identification, SRS positioning configuration for the NUL carrier, SRS positioning configuration for the SUL carrier, BWP configuration for the NUL (BWP configuration on the NUL carrier), BWP configuration for the SUL (BWP configuration on the SUL carrier), and TA configuration for the valid area. For example, the pre-configuration of the inactive valid area includes a cell identifier identification, SRS positioning configuration for the NUL carrier, SRS positioning configuration for the SUL carrier, BWP configuration on the NUL carrier, BWP configuration on the SUL carrier, and TA configuration for the valid area. Optionally, the pre-configuration of the inactive valid area includes a cell identifier identification, SRS positioning configuration for the SUL carrier, BWP configuration on the SUL carrier, and TA configuration for the valid area.

[0147] In one embodiment, the TA configuration of the effective area includes an inactive SRS positioning effective area TA timer, an inactive SRS positioning effective area RSRP change threshold, and indication information indicating whether TA adjustment is performed automatically.

[0148] Specifically, the TA configuration of the effective area may include: an inactive SRS positioning effective area TA timer, an inactive SRS positioning effective area RSRP change threshold, and automatic TA adjustment indication information; wherein, the automatic TA adjustment indication information may be indication information used to indicate whether automatic TA adjustment is performed.

[0149] The above-mentioned positioning configuration method can enable the CU to obtain relevant configuration information from the DU side in a separate architecture, and can enable the configuration of SRS signals in neighboring cells and IoT terminal NCD-SSB scenarios, solving the problem that the SRS signal in the traditional solution can only be associated with the SRS of the local cell, thus supporting more accurate positioning capabilities. In addition, this application also supports frequency hopping and multi-carrier capabilities, and supports higher-precision positioning capabilities through frequency hopping and larger bandwidth.

[0150] In one exemplary embodiment, such as Figure 4 As shown, after step 204, steps 302 to 304 may be included.

[0151] in:

[0152] Step 302: Send an interface message to the distribution unit (DU). The interface message includes an RRC configuration message. The RRC configuration message includes at least one of the second SRS information and inactive SRS configuration information.

[0153] Specifically, the centralized unit (CU) can generate an RRC configuration message for a terminal in the connected state; optionally, the RRC configuration message is an RRC reconfiguration message, for example, the RRC configuration message can be a radio resource control RRC reconfiguration message; for example, the RRC reconfiguration message can include one or more SRS location aggregation bandwidth configurations, normal uplink NUL SRS configurations, and supplementary uplink SUL SRS configurations.

[0154] For example, the RRC configuration message may include carrier aggregation configurations, such as one or more SRS positioning aggregation bandwidth configurations, SRS configurations for normal uplink NUL, and SRS configurations for supplementary uplink SUL. It can be understood that the SRS positioning aggregation bandwidth configuration is used to instruct the terminal to use aggregated bandwidth for positioning transmission in connected mode. Optionally, the central unit (CU) can obtain the SRS positioning aggregation bandwidth configuration based on the carrier aggregation configuration.

[0155] Optionally, the SRS location aggregation bandwidth configuration includes a serving cell identifier and a BWP identifier. Specifically, in this embodiment, the SRS location aggregation bandwidth configuration may include a serving cell identifier and a BWP identifier, wherein the identifiers of the serving cell and the BWP can provide the SRS with a serving cell and BWP configuration so that the aggregation bandwidth can be used for location transmission in connected state.

[0156] In some embodiments, after receiving the first response message, the centralized unit CU can generate an RRC configuration message for the terminal in the connected state to instruct the terminal to configure the transmission of SRS signals. The terminal can complete the transmission mode configuration of SRS signals according to the RRC configuration message.

[0157] Taking the centralized unit (CU) as the centralized entity of the base station and the first response message as the first intra-site interface response message as an example, after receiving the first intra-site interface response message, the centralized entity of the base station generates an RRC configuration message for the connected terminal. The RRC configuration message includes one or more SRS positioning aggregation bandwidth configurations, NUL SRS configurations, and SUL SRS configurations. Among them, the SRS configuration in the NUL SRS configuration may include at least one of frequency hopping configuration and carrier frequency; the SUL SRS configuration may include at least one of frequency hopping configuration and carrier frequency.

[0158] Furthermore, for terminals that need to switch back to the inactive state and perform uplink positioning in the inactive state, the centralized unit (CU) can also generate an RRC configuration message. After generating the RRC configuration message, the CU can send an interface message to the distributed unit (DU). The interface message can include at least one of the RRC configuration message and SRS positioning configuration storage information. It can be understood that the interface message can refer to an intra-site interface message. Further, the RRC configuration message can include inactive SRS configuration information. Optionally, the RRC configuration message is an RRC release message.

[0159] In this embodiment, the SRS positioning configuration storage information can instruct the Distribution Unit (DU) not to release the relevant resources used by the terminal for uplink positioning, so that the DU side still maintains the relevant resource configuration when the terminal returns to the inactive state, thereby avoiding the compatibility problem between the terminal and the network caused by the DU side erroneously releasing the relevant resources because it cannot recognize that the UE has returned to the inactive state.

[0160] Taking the centralized unit (CU) as the centralized entity of the base station, and taking the inactive SRS configuration information including at least one of the inactive SRS first configuration and the inactive SRS second configuration as an example, when the centralized entity of the base station determines that the terminal needs to return to the inactive state, and the terminal needs to perform SRS positioning transmission in the inactive state, an RRC release message can be generated. The RRC release message includes at least one of the inactive SRS first configuration and the inactive SRS second configuration.

[0161] Step 304: The interface message is used to instruct the distributed unit (DU) to send the RRC configuration message to the terminal. The RRC configuration message is used to instruct the terminal to complete the transmission configuration of the SRS signal.

[0162] Specifically, upon receiving an interface message, the Distribution Unit (DU) can send an RRC configuration message to a terminal in a connected state. After receiving the RRC configuration message, the terminal can configure the transmission mode of the SRS signal according to the configuration in the message.

[0163] For terminals that need to switch back to an inactive state and perform uplink positioning in the inactive state, the centralized unit (CU) can send an interface message to the distributed unit (DU) after generating an RRC configuration message. For example, the interface message may include at least one of an RRC configuration message and SRS positioning configuration storage information. It is understood that this interface message may refer to an intra-site interface message. Further, after receiving the interface message, the distributed unit (DU) can send the RRC configuration message to the terminal to instruct the terminal to enter an inactive state and complete the SRS signal transmission configuration.

[0164] Taking the centralized unit CU as the centralized entity of the base station, the distributed unit DU as the separate entity of the base station, and the RRC configuration message as the RRC release message as an example, when the centralized entity of the base station determines that the terminal needs to return to the inactive state and the terminal needs to perform SRS positioning transmission in the inactive state, an RRC release message is generated. The RRC release message includes at least one of the inactive state SRS first configuration and the inactive state SRS second configuration.

[0165] The centralized base station entity sends an interface message to the decentralized base station entity. This interface message contains at least one of the following: an RRC release message and an SRS positioning configuration save indication. Upon receiving the interface message, if the interface message carries an SRS positioning configuration save indication, the decentralized base station entity will not release the resources used by the terminal for SRS positioning. The terminal receives the RRC release message forwarded by the decentralized base station entity, returns to the inactive state, and completes the SRS signal transmission mode configuration according to the settings within the message.

[0166] The aforementioned positioning configuration method does not affect the terminal and has good forward compatibility through the network-side solution, making it easy to deploy and implement on the network. This application can support the CU to obtain relevant configuration information from the DU side in a separate architecture and instruct the DU side to maintain the relevant resource configuration when the terminal returns to the inactive state, thereby avoiding compatibility issues between the terminal and the network caused by the DU side erroneously releasing relevant resources due to its inability to recognize that the UE has returned to the inactive state.

[0167] In one exemplary embodiment, such as Figure 5 As shown, a positioning configuration method is provided. Taking the application of this method to a distributed unit (DU) as an example, the method includes the following steps 502 to 504. Wherein:

[0168] Step 502: Receive a first request message from the centralized unit CU. The first request message includes at least one of first SRS information and inactive SRS location query indication information. The first SRS information includes at least one of first SRS configuration and bandwidth aggregation request indication. The bandwidth aggregation request indication is used to obtain one or more carrier aggregation configurations.

[0169] Specifically, the distributed unit (DU) receives a first request message from the centralized unit (CU), wherein the first request message may be an interface message, such as a first intra-station interface request message.

[0170] Optionally, the first request message includes at least one of first SRS information and inactive SRS location query indication information. The first SRS information includes at least one of first SRS configuration and bandwidth aggregation request indication; the bandwidth aggregation request indication is used to obtain one or more carrier aggregation configurations.

[0171] Step 504: Send a first response message to the centralized unit CU; the first response message includes at least one of second SRS information and inactive SRS configuration information; the second SRS information includes at least one of second SRS configuration and carrier aggregation configuration.

[0172] Specifically, after receiving the first request message, the distribution unit (DU) can send a first response message to the central unit (CU), wherein the first response message is related to the uplink positioning of the terminal; exemplarily, the first response message includes at least one of second SRS information and inactive SRS configuration information. Further, the second SRS information includes at least one of second SRS configuration and carrier aggregation configuration.

[0173] In one embodiment, the carrier aggregation configuration includes one or more serving cell identifiers and BWP identifiers.

[0174] In some embodiments, the first SRS configuration includes at least one of SRS transmission bandwidth, synchronization signal block (SSB) cell number information, and system frame number (SFN) offset configuration; wherein, the SSB cell number information is used to indicate the SSB number of a non-cell defined synchronization signal block (NCD-SSB) in a neighboring cell or serving cell; the SRS transmission bandwidth includes the SRS transmission bandwidth corresponding to a first frequency range FR1, or the SRS transmission bandwidth corresponding to a second frequency range FR2; the SFN offset configuration includes at least one of SFN offset and integer subframe offset.

[0175] In one embodiment, the SRS transmission bandwidth corresponding to the first frequency range FR1 includes at least one of 3MHz, 5MHz, 10MHz, 15MHz, 20MHz, 25MHz, 30MHz, 35MHz, 40MHz, 45MHz, 50MHz, 60MHz, 70MHz, 80MHz, 90MHz, and 100MHz, and the SRS transmission bandwidth corresponding to the second frequency range FR2 includes at least one of 50MHz, 100MHz, 200MHz, 400MHz, 800MHz, and 1600MHz.

[0176] In some embodiments, the first request message is a location information request message; the first response message is a location information response message or a location information update message.

[0177] In one embodiment, the second SRS configuration includes at least one of at least a port configuration, at least one repetition factor, at least one SRS resource type configuration, at least one frequency hopping configuration, and at least one extended port configuration.

[0178] In one embodiment, the port configuration includes one of a 1-port, a 2-port, or a 4-port configuration; the extended port configuration includes an 8-port configuration, wherein the 8 ports are mapped to two different subsets based on Time Division Multiplexing (TDM), and the different subsets are mapped to different symbols.

[0179] In one embodiment, the frequency hopping configuration includes at least one of the following: overlap value, number of frequency hopping, frequency hopping comb offset, SRS transmission duration, SRS transmission period, SRS offset, starting SFN where the SRS is located, frequency hopping repetition mode, frequency hopping cycle offset, and frequency hopping granularity; the SRS resource type configuration includes one of the following: aperiodic configuration, semi-periodic configuration, and periodic configuration.

[0180] In some embodiments, the periodic configuration includes at least one of a period value, a time slot offset, and a periodic configuration of superframes; the non-periodic configuration includes a time slot offset; the half-periodic configuration includes at least one of a period value, a time slot offset, and a periodic configuration of superframes; the periodic configuration of superframes is used to indicate whether the superframes are even or odd when locating SRS transmission.

[0181] In one embodiment, the repetition factor includes at least one of a plurality of parameter values; the plurality of parameter values ​​are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14; the overlap value includes 0 RBs, 1 RB, 2 RBs, and 4 RBs; the number of frequency hopping numbers ranges from 1 to 6; the frequency hopping comb offset includes a frequency hopping identifier and / or a frequency hopping subset; the frequency hopping identifier ranges from 0 to 1023, and the frequency hopping subset includes 2-comb split transmission, 4-comb split transmission, or 8-comb split transmission.

[0182] In one embodiment, the inactive SRS configuration information includes at least one of an inactive SRS first configuration and an inactive SRS second configuration;

[0183] The first configuration of the inactive SRS includes the configuration of the SRS on the normal uplink NUL carrier, the configuration of the SRS on the supplementary uplink SUL carrier, the bandwidth portion (BWP) configuration of the NUL carrier, the BWP configuration of the SUL carrier, the TA timer in the inactive state, and the change threshold of the reference signal received power (RSRP) in the inactive state; the second configuration of the inactive SRS includes at least one of the following: at least one inactive SRS positioning aggregation bandwidth configuration, at least one SRS positioning transmit frequency hopping configuration, at least one inactive effective area pre-configuration, and at least one inactive effective area non-pre-configuration.

[0184] In some embodiments, the inactive SRS positioning aggregation bandwidth configuration includes at least one of subcarrier spacing and SRS carrier frequency; wherein, the SRS carrier frequency represents the carrier frequency for the SRS resource set of bandwidth aggregation; the inactive valid area pre-configuration includes at least one of the following: at least one cell identifier, SRS positioning configuration for NUL carrier, SRS positioning configuration for SUL carrier, BWP configuration on NUL carrier, BWP configuration on SUL carrier, and TA configuration of valid area.

[0185] In one embodiment, the TA configuration of the effective area includes an inactive SRS positioning effective area TA timer, an inactive SRS positioning effective area RSRP change threshold, and indication information indicating whether TA adjustment is performed automatically.

[0186] In one exemplary embodiment, such as Figure 6 As shown, after step 504, steps 602 to 604 may be included.

[0187] in:

[0188] Step 602: Receive an interface message from the centralized unit CU. The interface message includes an RRC configuration message. The RRC configuration message includes at least one of the second SRS information and inactive SRS configuration information.

[0189] Specifically, for a terminal in connected state, the interface message includes an RRC configuration message. This RRC configuration message may include one or more SRS location aggregation bandwidth configurations, normal uplink NUL SRS configurations, and supplementary uplink SUL SRS configurations. The SRS location aggregation bandwidth configuration includes the serving cell identifier and the BWP identifier. For example, the RRC configuration message is an RRC reconfiguration message.

[0190] For terminals that need to switch back to an inactive state and perform uplink positioning in the inactive state, the interface message may include at least one of an RRC configuration message and SRS positioning configuration storage information. The RRC configuration message may include inactive SRS configuration information; the SRS positioning configuration storage information is used to instruct the Distribution Unit (DU) not to release the resources used by the terminal for uplink positioning. Optionally, the RRC configuration message may be an RRC release message.

[0191] Step 604: Send an RRC configuration message to the terminal. The RRC configuration message is used to instruct the terminal to complete the transmission configuration of the SRS signal.

[0192] Specifically, for a terminal in the connected state, the RRC configuration message is used to instruct the terminal to complete the transmission configuration of the SRS signal.

[0193] For terminals that need to switch back to the inactive state and perform uplink positioning in the inactive state, the Distribution Unit (DU) can save the SRS positioning configuration information without releasing the resources used by the terminal for uplink positioning. The DU can send an RRC configuration message to the terminal. The RRC configuration message is used to instruct the terminal to enter the inactive state and complete the SRS signal transmission configuration. That is, the terminal can enter the inactive state and complete the SRS signal transmission configuration according to the RRC configuration message.

[0194] It is understood that the specific implementation process of the positioning configuration method executed from the perspective of the distributed unit (DU) can be referred to the description of the various embodiments of the positioning configuration method executed from the perspective of the centralized unit (CU) in the previous text, and will not be repeated here.

[0195] In an exemplary embodiment, an uplink positioning method is provided, which is illustrated by taking the application of the method to a terminal as an example, and includes the following steps:

[0196] Receive an RRC configuration message from a network entity. The RRC configuration message includes at least one of second SRS information and inactive SRS configuration information. The second SRS information includes at least one of second SRS configuration and carrier aggregation configuration.

[0197] In one embodiment, the method further includes: completing the transmission configuration of the SRS signal according to the RRC configuration message.

[0198] In one embodiment, the network entity is a distribution unit (DU), a central unit (CU), or a base station.

[0199] In one embodiment, the RRC configuration message is either an RRC reconfiguration message or an RRC release message.

[0200] Specifically, when the terminal is in a connected state, it receives an RRC configuration message from the central unit (CU) and can complete the transmission configuration of the SRS signal according to the RRC configuration message. For example, the RRC configuration message is an RRC reconfiguration message.

[0201] Furthermore, for terminals that need to switch back to an inactive state and perform uplink positioning in the inactive state, the Distributed Unit (DU) can send an RRC configuration message from the Centralized Unit (CU) to the terminal. The terminal can then enter the inactive state and complete the SRS signal transmission configuration based on the RRC configuration message. For example, this RRC configuration message can be an RRC release message.

[0202] In one embodiment, the second SRS configuration includes at least one of at least a port configuration, at least one repetition factor, at least one SRS resource type configuration, at least one frequency hopping configuration, and at least one extended port configuration.

[0203] In one embodiment, the port configuration includes one of a 1-port, a 2-port, or a 4-port configuration; the extended port configuration includes an 8-port configuration, wherein the 8 ports are mapped to two different subsets based on Time Division Multiplexing (TDM), and the different subsets are mapped to different symbols.

[0204] In one embodiment, the frequency hopping configuration includes at least one of the following: overlap value, number of frequency hopping, frequency hopping comb offset, SRS transmission duration, SRS transmission period, SRS offset, starting SFN where the SRS is located, frequency hopping repetition mode, frequency hopping cycle offset, and frequency hopping granularity; the SRS resource type configuration includes one of the following: non-periodic configuration, semi-periodic configuration, and periodic configuration.

[0205] In one embodiment, the periodic configuration includes at least one of a period value, a time slot offset, and a periodic configuration of superframes; the non-periodic configuration includes a time slot offset; the half-periodic configuration includes at least one of a period value, a time slot offset, and a periodic configuration of superframes; the periodic configuration of superframes is used to indicate whether the superframes are even or odd when locating SRS transmission.

[0206] In one embodiment, the repetition factor includes at least one of a plurality of parameter values; the plurality of parameter values ​​are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14; the overlap value includes 0 RBs, 1 RB, 2 RBs, and 4 RBs; the number of frequency hopping numbers ranges from 1 to 6; the frequency hopping comb offset includes a frequency hopping identifier and / or a frequency hopping subset; the frequency hopping identifier ranges from 0 to 1023, and the frequency hopping subset includes 2-comb split transmission, 4-comb split transmission, or 8-comb split transmission.

[0207] In one embodiment, the inactive SRS configuration information includes at least one of an inactive SRS first configuration and an inactive SRS second configuration;

[0208] The inactive SRS first configuration includes the SRS configuration on the normal uplink NUL carrier, the SRS configuration on the supplementary uplink SUL carrier, the bandwidth portion (BWP) configuration of the NUL carrier, the BWP configuration of the SUL carrier, the TA timer in the inactive state, and the change threshold of the reference signal received power (RSRP) in the inactive state.

[0209] The inactive SRS second configuration includes at least one of the following: inactive SRS positioning aggregation bandwidth configuration, SRS positioning transmission frequency hopping configuration, at least one inactive effective area pre-configuration, and at least one inactive effective area non-pre-configuration.

[0210] In one embodiment, the inactive SRS location aggregation bandwidth configuration includes at least one of subcarrier spacing and SRS carrier frequency; wherein the SRS carrier frequency represents the carrier frequency for the SRS resource set of bandwidth aggregation;

[0211] The pre-configuration of the inactive valid area includes at least one of the following: at least one cell identifier, SRS positioning configuration for NUL carrier, SRS positioning configuration for SUL carrier, BWP configuration on NUL carrier, BWP configuration on SUL carrier, and TA configuration of the valid area.

[0212] In one embodiment, the TA configuration of the effective area includes an inactive SRS positioning effective area TA timer, an inactive SRS positioning effective area RSRP change threshold, and indication information indicating whether TA adjustment is performed automatically.

[0213] It is understood that the specific implementation process of the uplink positioning method executed from the terminal perspective can be referred to the description of the various embodiments of the positioning configuration method executed from the perspective of the centralized unit (CU) / distributed unit (DU) in the previous text, and will not be repeated here.

[0214] In one exemplary embodiment, Figure 7 A signaling interaction flowchart for an uplink positioning method is provided. (Example) Figure 7 As shown, taking the base station centralized entity (gNB-CU), the base station separate entity (gNB-DU), and the terminal (UE) as an example, it describes the process of a cell 1 of a base station gNB-DU supporting one NCD-SSB, and the gNB-CU configuring the uplink single-carrier positioning measurement of the UE in connected state. This method may include the following steps:

[0215] The gNB-CU determines the first configuration information sent by the UE when using SRS positioning, and the second configuration information that needs to be obtained from the gNB-DU.

[0216] The first configuration information may include a first SRS configuration, such as FR1 SRS transmission bandwidth, FR2 SRS transmission bandwidth, SSB cell number information, and SFN offset configuration; wherein, the FR1 SRS transmission bandwidth may include 15MHz; the SFN offset configuration may include the SFN offset and integer subframe offset; the SSB cell number information may be #2.

[0217] Specifically, the gNB-CU sends a POSITIONING INFORMATION REQUEST message to the gNB-DU. The POSITIONING INFORMATION REQUEST message can be used to instruct the gNB-DU to configure the UE to send SRS signals for uplink positioning measurement, and to instruct the gNB-DU to obtain second configuration information. The POSITIONING INFORMATION REQUEST message includes first SRS information, such as first SRS configuration.

[0218] After receiving the POSITIONING INFORMATION REQUEST message, the gNB-DU determines the message content of POSITIONING INFORMATION RESPONSE based on the first SRS configuration carried in the message. The message content may include the second SRS configuration, such as an extended port and an SRS resource; wherein, the extended port is an 8-port TDM. SRS resources can include a repetition factor, SRS resource type configuration, and frequency hopping configuration; wherein, the repetition factor is 2; the SRS resource type configuration can be a periodic configuration; the frequency hopping configuration includes an overlap value, the number of frequency hopping units, the frequency hopping comb offset, the SRS transmission duration, the SRS transmission period and offset, the starting SFN where the SRS is located, the frequency hopping repetition mode, the frequency hopping cycle offset, and the frequency hopping granularity; wherein, the overlap value is 0 RBs; the number of frequency hopping units is 2; the frequency hopping comb offset includes: a frequency hopping identifier and a frequency hopping subset, wherein the frequency hopping identifier is 100, and the frequency hopping subset includes 2 comb-splitting transmissions; the frequency hopping repetition mode table is symbol-level; the frequency hopping cycle offset includes a frequency hopping identifier and a frequency hopping subset, wherein the frequency hopping subset is 2 comb-splitting transmissions; the frequency hopping granularity is "yes", and the SRS transmission duration value includes 2 time slots.

[0219] After receiving the POSITIONING INFORMATION RESPONSE message, the gNB-CU generates an RRC reconfiguration message for the connected UE. The RRC reconfiguration message may include an SRS location aggregation bandwidth configuration and an SRS configuration. The SRS location aggregation bandwidth configuration includes the identifiers of the serving cell and BWP. The SRS configuration includes the frequency hopping configuration and the carrier frequency.

[0220] After receiving the RRC reconfiguration message, the UE completes the transmission mode configuration of the SRS signal according to the configuration in it.

[0221] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0222] In one embodiment, such as Figure 8 As shown, a positioning and configuration device is provided, applied to a centralized unit (CU). The device includes:

[0223] The request message sending module 801 is used to send a first request message to the distribution unit DU. The first request message includes at least one of first SRS information and inactive SRS location query indication information. The first SRS information includes at least one of first SRS configuration and bandwidth aggregation request indication. The bandwidth aggregation request indication is used to obtain one or more carrier aggregation configurations.

[0224] The response message receiving module 802 is used to receive a first response message from the distribution unit DU; the first response message includes at least one of second SRS information and inactive SRS configuration information; the second SRS information includes at least one of second SRS configuration and carrier aggregation configuration.

[0225] In one embodiment, the carrier aggregation configuration includes one or more serving cell identifiers and BWP identifiers.

[0226] In one embodiment, the first SRS configuration includes at least one of SRS transmission bandwidth, synchronization signal block (SSB) cell number information, and system frame number (SFN) offset configuration; wherein, the SSB cell number information is used to indicate the SSB number of a non-cell defined synchronization signal block (NCD-SSB) in a neighboring cell or serving cell; the SRS transmission bandwidth includes the SRS transmission bandwidth corresponding to a first frequency range FR1, or the SRS transmission bandwidth corresponding to a second frequency range FR2; the SFN offset configuration includes at least one of SFN offset and integer subframe offset.

[0227] In one embodiment, the SRS transmission bandwidth corresponding to the first frequency range FR1 includes at least one of 3MHz, 5MHz, 10MHz, 15MHz, 20MHz, 25MHz, 30MHz, 35MHz, 40MHz, 45MHz, 50MHz, 60MHz, 70MHz, 80MHz, 90MHz, and 100MHz, and the SRS transmission bandwidth corresponding to the second frequency range FR2 includes at least one of 50MHz, 100MHz, 200MHz, 400MHz, 800MHz, and 1600MHz.

[0228] In one embodiment, the first request message is a location information request message; the first response message is a location information response message or a location information update message.

[0229] In one embodiment, the second SRS configuration includes at least one of at least a port configuration, at least one repetition factor, at least one SRS resource type configuration, at least one frequency hopping configuration, and at least one extended port configuration.

[0230] In one embodiment, the port configuration includes one of a 1-port, a 2-port, or a 4-port configuration; the extended port configuration includes an 8-port configuration, wherein the 8 ports are mapped to two different subsets based on Time Division Multiplexing (TDM), and the different subsets are mapped to different symbols.

[0231] In one embodiment, the frequency hopping configuration includes at least one of the following: overlap value, number of frequency hopping, frequency hopping comb offset, SRS transmission duration, SRS transmission period, SRS offset, starting SFN where the SRS is located, frequency hopping repetition mode, frequency hopping cycle offset, and frequency hopping granularity; the SRS resource type configuration includes one of the following: non-periodic configuration, semi-periodic configuration, and periodic configuration.

[0232] In one embodiment, the periodic configuration includes at least one of a period value, a time slot offset, and a periodic configuration of superframes; the non-periodic configuration includes a time slot offset; the half-periodic configuration includes at least one of a period value, a time slot offset, and a periodic configuration of superframes; the periodic configuration of superframes is used to indicate whether the superframes are even or odd when locating SRS transmission.

[0233] In one embodiment, the repetition factor includes at least one of a plurality of parameter values; the plurality of parameter values ​​are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14; the overlap value includes 0 RBs, 1 RB, 2 RBs, and 4 RBs; the number of frequency hopping numbers ranges from 1 to 6; the frequency hopping comb offset includes a frequency hopping identifier and / or a frequency hopping subset; the frequency hopping identifier ranges from 0 to 1023, and the frequency hopping subset includes 2-comb split transmission, 4-comb split transmission, or 8-comb split transmission.

[0234] In one embodiment, the inactive SRS configuration information includes at least one of an inactive SRS first configuration and an inactive SRS second configuration; the inactive SRS first configuration includes the configuration of SRS on a normal uplink NUL carrier, the configuration of SRS on a supplementary uplink SUL carrier, the bandwidth portion (BWP) configuration of the NUL carrier, the BWP configuration of the SUL carrier, the TA timer in the inactive state, and the reference signal received power (RSRP) change threshold in the inactive state; the inactive SRS second configuration includes at least one of at least an inactive SRS positioning aggregation bandwidth configuration, an SRS positioning transmit frequency hopping configuration, at least one inactive effective area pre-configuration, and at least one inactive effective area non-pre-configuration.

[0235] In one embodiment, the inactive SRS positioning aggregation bandwidth configuration includes at least one of subcarrier spacing and SRS carrier frequency; wherein the SRS carrier frequency represents the carrier frequency for the SRS resource set of bandwidth aggregation; the inactive effective area pre-configuration includes at least one of the following: at least one cell identifier, SRS positioning configuration for NUL carrier, SRS positioning configuration for SUL carrier, BWP configuration on NUL carrier, BWP configuration on SUL carrier, and TA configuration of effective area.

[0236] In one embodiment, the TA configuration of the effective area includes an inactive SRS positioning effective area TA timer, an inactive SRS positioning effective area RSRP change threshold, and indication information indicating whether TA adjustment is performed automatically.

[0237] In one embodiment, the apparatus further includes: an interface message sending module, configured to send an interface message to a distribution unit DU, the interface message including an RRC configuration message; the RRC configuration message including at least one of second SRS information and inactive SRS configuration information, the interface message being used to instruct the distribution unit DU to send the RRC configuration message to a terminal, and the RRC configuration message being used to instruct the terminal to complete the transmission configuration of the SRS signal.

[0238] In one embodiment, the RRC configuration message is either an RRC reconfiguration message or an RRC release message.

[0239] In one embodiment, such as Figure 9 As shown, a positioning configuration device is provided for use in a distribution unit (DU). The device includes:

[0240] The request message receiving module 901 is used to receive a first request message from the central unit CU. The first request message includes at least one of first SRS information and inactive SRS positioning query indication information. The first SRS information includes at least one of first SRS configuration and bandwidth aggregation request indication. The bandwidth aggregation request indication is used to obtain one or more carrier aggregation configurations.

[0241] The response message sending module 902 is used to send a first response message to the central unit CU; the first response message includes at least one of second SRS information and inactive SRS configuration information; the second SRS information includes at least one of second SRS configuration and carrier aggregation configuration.

[0242] In one embodiment, the carrier aggregation configuration includes one or more serving cell identifiers and BWP identifiers.

[0243] In one embodiment, the first SRS configuration includes at least one of SRS transmission bandwidth, synchronization signal block (SSB) cell number information, and system frame number (SFN) offset configuration; wherein, the SSB cell number information is used to indicate the SSB number of a non-cell defined synchronization signal block (NCD-SSB) in a neighboring cell or serving cell; the SRS transmission bandwidth includes the SRS transmission bandwidth corresponding to a first frequency range FR1, or the SRS transmission bandwidth corresponding to a second frequency range FR2; the SFN offset configuration includes at least one of SFN offset and integer subframe offset.

[0244] In one embodiment, the SRS transmission bandwidth corresponding to the first frequency range FR1 includes at least one of 3MHz, 5MHz, 10MHz, 15MHz, 20MHz, 25MHz, 30MHz, 35MHz, 40MHz, 45MHz, 50MHz, 60MHz, 70MHz, 80MHz, 90MHz, and 100MHz, and the SRS transmission bandwidth corresponding to the second frequency range FR2 includes at least one of 50MHz, 100MHz, 200MHz, 400MHz, 800MHz, and 1600MHz.

[0245] In one embodiment, the first request message is a location information request message; the first response message is a location information response message or a location information update message.

[0246] In one embodiment, the second SRS configuration includes at least one of at least a port configuration, at least one repetition factor, at least one SRS resource type configuration, at least one frequency hopping configuration, and at least one extended port configuration.

[0247] In one embodiment, the port configuration includes one of a 1-port, a 2-port, or a 4-port configuration; the extended port configuration includes an 8-port configuration, wherein the 8 ports are mapped to two different subsets based on Time Division Multiplexing (TDM), and the different subsets are mapped to different symbols.

[0248] In one embodiment, the frequency hopping configuration includes at least one of the following: overlap value, number of frequency hopping, frequency hopping comb offset, SRS transmission duration, SRS transmission period, SRS offset, starting SFN where the SRS is located, frequency hopping repetition mode, frequency hopping cycle offset, and frequency hopping granularity; the SRS resource type configuration includes one of the following: non-periodic configuration, semi-periodic configuration, and periodic configuration.

[0249] In one embodiment, the periodic configuration includes at least one of a period value, a time slot offset, and a periodic configuration of superframes; the non-periodic configuration includes a time slot offset; the half-periodic configuration includes at least one of a period value, a time slot offset, and a periodic configuration of superframes; the periodic configuration of superframes is used to indicate whether the superframes are even or odd when locating SRS transmission.

[0250] In one embodiment, the repetition factor includes at least one of a plurality of parameter values; the plurality of parameter values ​​are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14; the overlap value includes 0 RBs, 1 RB, 2 RBs, and 4 RBs; the number of frequency hopping numbers ranges from 1 to 6; the frequency hopping comb offset includes a frequency hopping identifier and / or a frequency hopping subset; the frequency hopping identifier ranges from 0 to 1023, and the frequency hopping subset includes 2-comb split transmission, 4-comb split transmission, or 8-comb split transmission.

[0251] In one embodiment, the inactive SRS configuration information includes at least one of an inactive SRS first configuration and an inactive SRS second configuration; the inactive SRS first configuration includes the configuration of SRS on a normal uplink NUL carrier, the configuration of SRS on a supplementary uplink SUL carrier, the bandwidth portion (BWP) configuration of the NUL carrier, the BWP configuration of the SUL carrier, the TA timer in the inactive state, and the reference signal received power (RSRP) change threshold in the inactive state; the inactive SRS second configuration includes at least one of at least an inactive SRS positioning aggregation bandwidth configuration, an SRS positioning transmit frequency hopping configuration, at least one inactive effective area pre-configuration, and at least one inactive effective area non-pre-configuration.

[0252] In one embodiment, the inactive SRS positioning aggregation bandwidth configuration includes at least one of subcarrier spacing and SRS carrier frequency; wherein the SRS carrier frequency represents the carrier frequency for the SRS resource set of bandwidth aggregation; the inactive effective area pre-configuration includes at least one of the following: at least one cell identifier, SRS positioning configuration for NUL carrier, SRS positioning configuration for SUL carrier, BWP configuration on NUL carrier, BWP configuration on SUL carrier, and TA configuration of effective area.

[0253] In one embodiment, the TA configuration of the effective area includes an inactive SRS positioning effective area TA timer, an inactive SRS positioning effective area RSRP change threshold, and indication information indicating whether TA adjustment is performed automatically.

[0254] In one embodiment, the apparatus further includes: an interface message receiving module, configured to receive an interface message from a central unit CU, the interface message including an RRC configuration message; the RRC configuration message including at least one of second SRS information and inactive SRS configuration information.

[0255] The configuration message sending module is used to send the first RRC configuration message to the terminal. The first RRC configuration message is used to instruct the terminal to complete the transmission configuration of the SRS signal.

[0256] In one embodiment, the first RRC configuration message is an RRC reconfiguration message.

[0257] In one embodiment, the apparatus further includes: an interface message receiving module, configured to receive an interface message from a central unit (CU), the interface message including at least one of a second RRC configuration message and SRS positioning configuration storage information, the second RRC configuration message including inactive SRS configuration information; the SRS positioning configuration storage information is used to instruct the distribution unit (DU) not to release the relevant resources used by the terminal for uplink positioning; and a configuration message sending module, configured to send the RRC configuration message to the terminal, the RRC configuration message being used to instruct the terminal to complete the transmission configuration of the SRS signal.

[0258] In one embodiment, the RRC configuration message is either an RRC reconfiguration message or an RRC release message.

[0259] Each module in the aforementioned positioning configuration device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of a computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0260] In one embodiment, an uplink positioning device is provided, applied to a terminal, the device comprising:

[0261] A configuration message receiving module is used to receive RRC configuration messages from network entities. The RRC configuration messages include at least one of second SRS information and inactive SRS configuration information. The second SRS information includes at least one of second SRS configuration and carrier aggregation configuration.

[0262] In one embodiment, the network entity is a distribution unit (DU), a central unit (CU), or a base station.

[0263] In one embodiment, the RRC configuration message is either an RRC reconfiguration message or an RRC release message.

[0264] In one embodiment, the second SRS configuration includes at least one of at least a port configuration, at least one repetition factor, at least one SRS resource type configuration, at least one frequency hopping configuration, and at least one extended port configuration.

[0265] In one embodiment, the port configuration includes one of a 1-port, a 2-port, or a 4-port configuration; the extended port configuration includes an 8-port configuration, wherein the 8 ports are mapped to two different subsets based on Time Division Multiplexing (TDM), and the different subsets are mapped to different symbols.

[0266] In one embodiment, the frequency hopping configuration includes at least one of the following: overlap value, number of frequency hopping, frequency hopping comb offset, SRS transmission duration, SRS transmission period, SRS offset, starting SFN where the SRS is located, frequency hopping repetition mode, frequency hopping cycle offset, and frequency hopping granularity; the SRS resource type configuration includes one of the following: non-periodic configuration, semi-periodic configuration, and periodic configuration.

[0267] In one embodiment, the periodic configuration includes at least one of a period value, a time slot offset, and a periodic configuration of superframes; the non-periodic configuration includes a time slot offset; the half-periodic configuration includes at least one of a period value, a time slot offset, and a periodic configuration of superframes; the periodic configuration of superframes is used to indicate whether the superframes are even or odd when locating SRS transmission.

[0268] In one embodiment, the repetition factor includes at least one of a plurality of parameter values; the plurality of parameter values ​​are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14; the overlap value includes 0 RBs, 1 RB, 2 RBs, and 4 RBs; the number of frequency hopping numbers ranges from 1 to 6; the frequency hopping comb offset includes a frequency hopping identifier and / or a frequency hopping subset; the frequency hopping identifier ranges from 0 to 1023, and the frequency hopping subset includes 2-comb split transmission, 4-comb split transmission, or 8-comb split transmission.

[0269] In one embodiment, the inactive SRS configuration information includes at least one of an inactive SRS first configuration and an inactive SRS second configuration; the inactive SRS first configuration includes the configuration of SRS on a normal uplink NUL carrier, the configuration of SRS on a supplementary uplink SUL carrier, the bandwidth portion (BWP) configuration of the NUL carrier, the BWP configuration of the SUL carrier, the TA timer in the inactive state, and the reference signal received power (RSRP) change threshold in the inactive state; the inactive SRS second configuration includes at least one of at least an inactive SRS positioning aggregation bandwidth configuration, an SRS positioning transmit frequency hopping configuration, at least one inactive effective area pre-configuration, and at least one inactive effective area non-pre-configuration.

[0270] In one embodiment, the inactive SRS positioning aggregation bandwidth configuration includes at least one of subcarrier spacing and SRS carrier frequency; wherein the SRS carrier frequency represents the carrier frequency for the SRS resource set of bandwidth aggregation; the inactive effective area pre-configuration includes at least one of the following: at least one cell identifier, SRS positioning configuration for NUL carrier, SRS positioning configuration for SUL carrier, BWP configuration on NUL carrier, BWP configuration on SUL carrier, and TA configuration of effective area.

[0271] In one embodiment, the TA configuration of the effective area includes an inactive SRS positioning effective area TA timer, an inactive SRS positioning effective area RSRP change threshold, and indication information indicating whether TA adjustment is performed automatically.

[0272] In one embodiment, the apparatus further includes a transmission configuration module for configuring the transmission of the SRS signal according to the RRC configuration message.

[0273] Each module in the aforementioned uplink positioning device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of a computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0274] In one exemplary embodiment, a centralized unit (CU) is provided, including a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the steps of the positioning and configuration method described above from the perspective of the centralized unit (CU).

[0275] In one exemplary embodiment, a distribution unit (DU) is provided, including a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the steps of the positioning configuration method described above from the perspective of the distribution unit (DU).

[0276] In one embodiment, the aforementioned network device (e.g., network entity) may be an access network device. Figure 10 This is a schematic diagram of the structure of an access network device provided in an embodiment of this application. The access network device may include a receiver 31, a memory 32, a processor 33, at least one communication bus 34, and a transmitter 35. The communication bus 34 is used to implement communication connections between components. The memory 32 may include high-speed RAM or non-volatile memory (NVM), such as at least one disk storage device. The memory 32 can store various programs for performing various processing functions and implementing the method steps of this embodiment. In this embodiment, the transmitter 35 can be a radio frequency processing module or a baseband processing module in the access network device, and the receiver 31 can also be a radio frequency processing module or a baseband processing module in the access network device. The transmitter 35 and receiver 31 can be integrated together to form a transceiver. Both the transmitter 35 and receiver 31 can be coupled to the processor 33, and can perform receiving or transmitting actions under the instruction or control of the processor 33.

[0277] Taking the access network device as a centralized unit (CU) as an example, in this embodiment, the transmitter 35 is used to send a first request message to the distributed unit (DU). The first request message includes at least one of first SRS information and inactive SRS location query indication information. The first SRS information includes at least one of first SRS configuration and bandwidth aggregation request indication. The bandwidth aggregation request indication is used to obtain one or more carrier aggregation configurations.

[0278] Receiver 31 is used to receive a first response message from the distribution unit DU; the first response message includes at least one of second SRS information and inactive SRS configuration information; the second SRS information includes at least one of second SRS configuration and carrier aggregation configuration.

[0279] In one embodiment, the carrier aggregation configuration includes one or more serving cell identifiers and BWP identifiers.

[0280] In one embodiment, the first SRS configuration includes at least one of SRS transmission bandwidth, synchronization signal block SSB cell number information, and system frame number SFN offset configuration.

[0281] Among them, the SSB cell number information is used to indicate the SSB number of a non-cell defined synchronization signal block NCD-SSB in a neighboring cell or serving cell; the SRS transmission bandwidth includes the SRS transmission bandwidth corresponding to the first frequency range FR1, or the SRS transmission bandwidth corresponding to the second frequency range FR2; the SFN offset configuration includes at least one of the SFN offset and the integer subframe offset.

[0282] In one embodiment, the SRS transmission bandwidth corresponding to the first frequency range FR1 includes at least one of 3MHz, 5MHz, 10MHz, 15MHz, 20MHz, 25MHz, 30MHz, 35MHz, 40MHz, 45MHz, 50MHz, 60MHz, 70MHz, 80MHz, 90MHz, and 100MHz, and the SRS transmission bandwidth corresponding to the second frequency range FR2 includes at least one of 50MHz, 100MHz, 200MHz, 400MHz, 800MHz, and 1600MHz.

[0283] In one embodiment, the first request message is a location information request message; the first response message is a location information response message or a location information update message.

[0284] In one embodiment, the second SRS configuration includes at least one of at least a port configuration, at least one repetition factor, at least one SRS resource type configuration, at least one frequency hopping configuration, and at least one extended port configuration.

[0285] In one embodiment, the port configuration includes one of a 1-port, a 2-port, or a 4-port configuration; the extended port configuration includes an 8-port configuration, wherein the 8 ports are mapped to two different subsets based on Time Division Multiplexing (TDM), and the different subsets are mapped to different symbols.

[0286] In one embodiment, the frequency hopping configuration includes at least one of the following: overlap value, number of frequency hopping, frequency hopping comb offset, SRS transmission duration, SRS transmission period, SRS offset, starting SFN where the SRS is located, frequency hopping repetition mode, frequency hopping cycle offset, and frequency hopping granularity; the SRS resource type configuration includes one of the following: aperiodic configuration, semi-periodic configuration, and periodic configuration.

[0287] In one embodiment, the periodic configuration includes at least one of a period value, a time slot offset, and a periodic configuration of superframes; the non-periodic configuration includes a time slot offset; the half-periodic configuration includes at least one of a period value, a time slot offset, and a periodic configuration of superframes; the periodic configuration of superframes is used to indicate whether the superframes are even or odd when locating SRS transmission.

[0288] In one embodiment, the repetition factor includes at least one of a plurality of parameter values; the plurality of parameter values ​​are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14; the overlap value includes 0 RBs, 1 RB, 2 RBs, and 4 RBs; the frequency hopping number ranges from 1 to 6; the frequency hopping comb offset includes a frequency hopping identifier and / or a frequency hopping subset; the frequency hopping identifier ranges from 0 to 1023, and the frequency hopping subset includes 2-comb split transmission, 4-comb split transmission, or 8-comb split transmission.

[0289] In one embodiment, the inactive SRS configuration information includes at least one of an inactive SRS first configuration and an inactive SRS second configuration; the inactive SRS first configuration includes the SRS configuration on the normal uplink NUL carrier, the SRS configuration on the supplementary uplink SUL carrier, the bandwidth portion (BWP) configuration of the NUL carrier, the BWP configuration of the SUL carrier, the TA timer in the inactive state, and the reference signal received power (RSRP) change threshold in the inactive state; the inactive SRS second configuration includes at least one of at least an inactive SRS positioning aggregation bandwidth configuration, an SRS positioning transmit frequency hopping configuration, at least one inactive effective area pre-configuration, and at least one inactive effective area non-pre-configuration.

[0290] In one embodiment, the inactive SRS positioning aggregation bandwidth configuration includes at least one of subcarrier spacing and SRS carrier frequency; wherein, the SRS carrier frequency represents the carrier frequency for the SRS resource set of bandwidth aggregation; the inactive valid area pre-configuration includes at least one of the following: at least one cell identifier, SRS positioning configuration for NUL carrier, SRS positioning configuration for SUL carrier, BWP configuration on NUL carrier, BWP configuration on SUL carrier, and TA configuration of valid area.

[0291] In one embodiment, the TA configuration of the effective area includes an inactive SRS positioning effective area TA timer, an inactive SRS positioning effective area RSRP change threshold, and indication information indicating whether TA adjustment is performed automatically.

[0292] In one embodiment, the transmitter 35 is further configured to send an interface message to the distribution unit DU, the interface message including an RRC configuration message; the RRC configuration message including at least one of second SRS information and inactive SRS configuration information; the interface message is used to instruct the distribution unit DU to send the RRC configuration message to the terminal, and the RRC configuration message is used to instruct the terminal to complete the transmission configuration of the SRS signal.

[0293] In one embodiment, the RRC configuration message is either an RRC reconfiguration message or an RRC release message.

[0294] Furthermore, taking the access network device as a distributed unit (DU) as an example, in this embodiment, the receiver 31 is used to receive a first request message from the centralized unit (CU). The first request message includes at least one of first SRS information and inactive SRS location query indication information. The first SRS information includes at least one of first SRS configuration and bandwidth aggregation request indication. The bandwidth aggregation request indication is used to obtain one or more carrier aggregation configurations.

[0295] Transmitter 35 is used to send a first response message to the central unit CU; the first response message includes at least one of second SRS information and inactive SRS configuration information; the second SRS information includes at least one of second SRS configuration and carrier aggregation configuration.

[0296] In one embodiment, the carrier aggregation configuration includes one or more serving cell identifiers and BWP identifiers.

[0297] In one embodiment, the first SRS configuration includes at least one of SRS transmission bandwidth, synchronization signal block (SSB) cell number information, and system frame number (SFN) offset configuration; wherein, the SSB cell number information is used to indicate the SSB number of a non-cell defined synchronization signal block (NCD-SSB) in a neighboring cell or serving cell; the SRS transmission bandwidth includes the SRS transmission bandwidth corresponding to a first frequency range FR1, or the SRS transmission bandwidth corresponding to a second frequency range FR2; the SFN offset configuration includes at least one of SFN offset and integer subframe offset.

[0298] In one embodiment, the SRS transmission bandwidth corresponding to the first frequency range FR1 includes at least one of 3MHz, 5MHz, 10MHz, 15MHz, 20MHz, 25MHz, 30MHz, 35MHz, 40MHz, 45MHz, 50MHz, 60MHz, 70MHz, 80MHz, 90MHz, and 100MHz, and the SRS transmission bandwidth corresponding to the second frequency range FR2 includes at least one of 50MHz, 100MHz, 200MHz, 400MHz, 800MHz, and 1600MHz.

[0299] In one embodiment, the first request message is a location information request message; the first response message is a location information response message or a location information update message.

[0300] In one embodiment, the second SRS configuration includes at least one of at least a port configuration, at least one repetition factor, at least one SRS resource type configuration, at least one frequency hopping configuration, and at least one extended port configuration.

[0301] In one embodiment, the port configuration includes one of a 1-port, a 2-port, or a 4-port configuration; the extended port configuration includes an 8-port configuration, wherein the 8 ports are mapped to two different subsets based on Time Division Multiplexing (TDM), and the different subsets are mapped to different symbols.

[0302] In one embodiment, the frequency hopping configuration includes at least one of the following: overlap value, number of frequency hopping, frequency hopping comb offset, SRS transmission duration, SRS transmission period, SRS offset, starting SFN where the SRS is located, frequency hopping repetition mode, frequency hopping cycle offset, and frequency hopping granularity; the SRS resource type configuration includes one of the following: aperiodic configuration, semi-periodic configuration, and periodic configuration.

[0303] In one embodiment, the periodic configuration includes at least one of a period value, a time slot offset, and a periodic configuration of superframes; the non-periodic configuration includes a time slot offset; the half-periodic configuration includes at least one of a period value, a time slot offset, and a periodic configuration of superframes; the periodic configuration of superframes is used to indicate whether the superframes are even or odd when locating SRS transmission.

[0304] In one embodiment, the repetition factor includes at least one of a plurality of parameter values; the plurality of parameter values ​​are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14; the overlap value includes 0 RBs, 1 RB, 2 RBs, and 4 RBs; the frequency hopping number ranges from 1 to 6; the frequency hopping comb offset includes a frequency hopping identifier and / or a frequency hopping subset; the frequency hopping identifier ranges from 0 to 1023, and the frequency hopping subset includes 2-comb split transmission, 4-comb split transmission, or 8-comb split transmission.

[0305] In one embodiment, the inactive SRS configuration information includes at least one of an inactive SRS first configuration and an inactive SRS second configuration; the inactive SRS first configuration includes the SRS configuration on the normal uplink NUL carrier, the SRS configuration on the supplementary uplink SUL carrier, the bandwidth portion (BWP) configuration of the NUL carrier, the BWP configuration of the SUL carrier, the TA timer in the inactive state, and the reference signal received power (RSRP) change threshold in the inactive state; the inactive SRS second configuration includes at least one of at least an inactive SRS positioning aggregation bandwidth configuration, an SRS positioning transmit frequency hopping configuration, at least one inactive effective area pre-configuration, and at least one inactive effective area non-pre-configuration.

[0306] In one embodiment, the inactive SRS positioning aggregation bandwidth configuration includes at least one of subcarrier spacing and SRS carrier frequency; wherein, the SRS carrier frequency represents the carrier frequency for the SRS resource set of bandwidth aggregation; the inactive valid area pre-configuration includes at least one of the following: at least one cell identifier, SRS positioning configuration for NUL carrier, SRS positioning configuration for SUL carrier, BWP configuration on NUL carrier, BWP configuration on SUL carrier, and TA configuration of valid area.

[0307] In one embodiment, the TA configuration of the effective area includes an inactive SRS positioning effective area TA timer, an inactive SRS positioning effective area RSRP change threshold, and indication information indicating whether TA adjustment is performed automatically.

[0308] In one embodiment, receiver 31 is further configured to receive an interface message from centralized unit CU, the interface message including an RRC configuration message; the RRC configuration message includes at least one of second SRS information and inactive SRS configuration information;

[0309] Transmitter 35 is also used to send RRC configuration messages to the terminal, which instruct the terminal to complete the transmission configuration of the SRS signal.

[0310] In one embodiment, the RRC configuration message is either an RRC reconfiguration message or an RRC release message.

[0311] In one exemplary embodiment, a terminal is provided, including a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the steps of the uplink positioning method described above from the perspective of the terminal.

[0312] In one embodiment, Figure 11 This is a schematic diagram of the terminal structure provided in the embodiments of this application. Figure 11 The terminal 700 shown includes at least one processor 701, a memory 702, at least one network interface 704, and a user interface 703. The various components in the terminal 700 are coupled together via a bus system 705. It is understood that the bus system 705 is used to implement communication between these components. In addition to a data bus, the bus system 705 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in… Figure 11 Various buses are designated as bus system 705. Additionally, embodiments of this application also include a transceiver 706, which may consist of multiple elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.

[0313] The user interface 703 may include a display, keyboard, or clicking device (such as a mouse, trackball, touchpad, or touch screen).

[0314] It is understood that the memory 702 in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 702 of the systems and methods described in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0315] In some implementations, memory 702 stores elements such as executable modules or data structures, or subsets thereof, or extended sets thereof: operating system 7021 and application program 7022.

[0316] The operating system 7021 includes various system programs, such as the framework layer, core library layer, and driver layer, used to implement various basic business functions and handle hardware-based tasks. The application program 7022 includes various applications, such as a media player and a browser, used to implement various application functions. The program implementing the method of this application embodiment can be included in the application program 7022.

[0317] In this embodiment of the application, by calling the program or instructions stored in the memory 702, specifically the program or instructions stored in the application program 7022, the receiver is used to receive RRC configuration messages from the network entity. The RRC configuration messages include at least one of second SRS information and inactive SRS configuration information; the second SRS information includes at least one of second SRS configuration and carrier aggregation configuration.

[0318] The methods disclosed in some or all of the above embodiments of this application can also be applied to processor 701, or implemented by processor 701, or implemented by processor 701 in conjunction with other components (e.g., transceivers). Processor 701 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 701 or by instructions in the form of software. The processor 701 mentioned above may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application can be directly embodied as being executed by a hardware decoding processor, or being executed by a combination of hardware and software modules in the decoding processor. The software module can reside in a mature storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, or registers. This storage medium is located in memory 702, and processor 701 reads the information from memory 702 and, in conjunction with its hardware, completes the steps of the above method.

[0319] It is understood that the embodiments described in this application can be implemented using hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described in this application, or combinations thereof.

[0320] For software implementation, the technology described in the embodiments of this application can be implemented by modules (e.g., procedures, functions, etc.) that perform the functions described in the embodiments of this application. The software code can be stored in memory and executed by processor 701. The memory can be implemented in processor 701 or external to processor 701.

[0321] In one embodiment, the network entity is a distribution unit (DU), a central unit (CU), or a base station.

[0322] In one embodiment, the RRC configuration message is either an RRC reconfiguration message or an RRC release message.

[0323] In one embodiment, the processor is configured to perform transmission configuration of the SRS signal based on the RRC configuration message.

[0324] In one embodiment, a communication system is provided, including the aforementioned terminal, the aforementioned centralized unit CU, and the aforementioned distributed unit DU.

[0325] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon that, when executed by a processor, implements the steps in the above method embodiments.

[0326] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above method embodiments.

[0327] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments described above. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. The databases involved in the embodiments provided in this application can include at least one of relational databases and non-relational databases. Non-relational databases can include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application can be general-purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, artificial intelligence (AI) processors, etc., and are not limited to these.

[0328] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0329] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A positioning configuration method, characterized in that, Applied to a centralized unit (CU), the method includes: A first request message is sent to the Distribution Unit (DU), the first request message including at least one of first SRS information and inactive SRS location query indication information; the first SRS information includes at least one of first SRS configuration and bandwidth aggregation request indication; the bandwidth aggregation request indication is used to obtain one or more carrier aggregation configurations; The system receives a first response message from the distribution unit (DU); the first response message includes at least one of second SRS information and inactive SRS configuration information; the second SRS information includes at least one of second SRS configuration and carrier aggregation configuration.

2. The method according to claim 1, characterized in that, The carrier aggregation configuration includes one or more serving cell identifiers and BWP identifiers.

3. The method according to claim 1, characterized in that, The first SRS configuration includes at least one of the following: SRS transmission bandwidth, Synchronization Signal Block (SSB) cell number information, and System Frame Number (SFN) offset configuration; The SSB cell number information is used to indicate the SSB number of a non-cell defined synchronization signal block (NCD-SSB) in a neighboring cell or serving cell; the SRS transmission bandwidth includes the SRS transmission bandwidth corresponding to the first frequency range FR1 or the SRS transmission bandwidth corresponding to the second frequency range FR2; the SFN offset configuration includes at least one of the SFN offset and the integer subframe offset.

4. The method according to claim 3, characterized in that, The SRS transmission bandwidth corresponding to the first frequency range FR1 includes at least one of 3MHz, 5MHz, 10MHz, 15MHz, 20MHz, 25MHz, 30MHz, 35MHz, 40MHz, 45MHz, 50MHz, 60MHz, 70MHz, 80MHz, 90MHz, and 100MHz, and the SRS transmission bandwidth corresponding to the second frequency range FR2 includes at least one of 50MHz, 100MHz, 200MHz, 400MHz, 800MHz, and 1600MHz.

5. The method according to claim 1, characterized in that, The first request message is a location information request message; the first response message is a location information response message or a location information update message.

6. The method according to claim 1, characterized in that, The second SRS configuration includes at least one of the following: at least one port configuration, at least one repetition factor, at least one SRS resource type configuration, at least one frequency hopping configuration, and at least one extended port configuration.

7. The method according to claim 6, characterized in that, The port configuration includes one of the following: port 1, port 2, or port 4. The extended port configuration includes an 8-port configuration, wherein the 8-port configuration maps the 8 ports to two different subsets based on Time Division Multiplexing (TDM), and the different subsets are mapped to different symbols.

8. The method according to claim 6, characterized in that, The frequency hopping configuration includes at least one of the following: overlap value, number of frequency hopping, frequency hopping comb offset, SRS transmission duration, SRS transmission period, SRS offset, starting SFN where the SRS is located, frequency hopping repetition mode, frequency hopping cycle offset, and frequency hopping granularity; the SRS resource type configuration includes one of the following: non-periodic configuration, semi-periodic configuration, and periodic configuration.

9. The method according to claim 8, characterized in that, The periodic configuration includes at least one of period value, time slot offset, and superframe periodic configuration; the non-periodic configuration includes time slot offset; the half-periodic configuration includes at least one of period value, time slot offset, and superframe periodic configuration; the superframe periodic configuration is used to indicate whether the superframe is an even number of superframes or an odd number of superframes when positioning SRS transmission.

10. The method according to claim 8, characterized in that, The repetition factor includes at least one of a plurality of parameter values; the plurality of parameter values ​​are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14; the overlap value includes 0 RBs, 1 RB, 2 RBs, and 4 RBs; the frequency hopping number ranges from 1 to 6; the frequency hopping comb offset includes a frequency hopping identifier and / or a frequency hopping subset; the frequency hopping identifier ranges from 0 to 1023, and the frequency hopping subset includes 2-comb split transmission, 4-comb split transmission, or 8-comb split transmission.

11. The method according to claim 1, characterized in that, The inactive SRS configuration information includes at least one of the inactive SRS first configuration and the inactive SRS second configuration; The inactive SRS first configuration includes the SRS configuration on the normal uplink NUL carrier, the SRS configuration on the supplementary uplink SUL carrier, the bandwidth portion (BWP) configuration of the NUL carrier, the BWP configuration of the SUL carrier, the TA timer in the inactive state, and the reference signal received power (RSRP) change threshold in the inactive state. The inactive SRS second configuration includes at least one of the following: inactive SRS positioning aggregation bandwidth configuration, SRS positioning transmission frequency hopping configuration, at least one inactive effective area pre-configuration, and at least one inactive effective area non-pre-configuration.

12. The method according to claim 11, characterized in that, The inactive SRS positioning aggregation bandwidth configuration includes at least one of subcarrier spacing and SRS carrier frequency; wherein, the SRS carrier frequency represents the carrier frequency for the SRS resource set of bandwidth aggregation; The pre-configuration of the inactive valid area includes at least one of the following: at least one cell identifier, SRS positioning configuration for the NUL carrier, SRS positioning configuration for the SUL carrier, BWP configuration on the NUL carrier, BWP configuration on the SUL carrier, and TA configuration of the valid area.

13. The method according to claim 12, characterized in that, The TA configuration of the effective area includes an inactive SRS positioning effective area TA timer, an inactive SRS positioning effective area RSRP change threshold, and an indication of whether TA adjustment is performed automatically.

14. The method according to claim 1, characterized in that, After receiving the first response message from the distribution unit DU, the method further includes: An interface message is sent to the distribution unit (DU), the interface message including an RRC configuration message; the RRC configuration message includes at least one of the second SRS information and the inactive SRS configuration information. The interface message is used to instruct the distribution unit (DU) to send the RRC configuration message to the terminal, and the RRC configuration message is used to instruct the terminal to complete the transmission configuration of the SRS signal.

15. The method according to claim 14, characterized in that, The RRC configuration message is either an RRC reconfiguration message or an RRC release message.

16. A positioning configuration method, characterized in that, Applied to a distributed unit (DU), the method includes: The system receives a first request message from the central unit (CU), the first request message including at least one of first SRS information and inactive SRS location query indication information; the first SRS information includes at least one of first SRS configuration and bandwidth aggregation request indication; the bandwidth aggregation request indication is used to obtain one or more carrier aggregation configurations; A first response message is sent to the centralized unit (CU); the first response message includes at least one of second SRS information and inactive SRS configuration information; the second SRS information includes at least one of second SRS configuration and carrier aggregation configuration.

17. The method according to claim 16, characterized in that, The carrier aggregation configuration includes one or more serving cell identifiers and BWP identifiers.

18. The method according to claim 16, characterized in that, The first SRS configuration includes at least one of the following: SRS transmission bandwidth, Synchronization Signal Block (SSB) cell number information, and System Frame Number (SFN) offset configuration; The SSB cell number information is used to indicate the SSB number of a non-cell defined synchronization signal block (NCD-SSB) in a neighboring cell or serving cell; the SRS transmission bandwidth includes the SRS transmission bandwidth corresponding to the first frequency range FR1 or the SRS transmission bandwidth corresponding to the second frequency range FR2; the SFN offset configuration includes at least one of the SFN offset and the integer subframe offset.

19. The method according to claim 18, characterized in that, The SRS transmission bandwidth corresponding to the first frequency range FR1 includes at least one of 3MHz, 5MHz, 10MHz, 15MHz, 20MHz, 25MHz, 30MHz, 35MHz, 40MHz, 45MHz, 50MHz, 60MHz, 70MHz, 80MHz, 90MHz, and 100MHz, and the SRS transmission bandwidth corresponding to the second frequency range FR2 includes at least one of 50MHz, 100MHz, 200MHz, 400MHz, 800MHz, and 1600MHz.

20. The method according to claim 16, characterized in that, The first request message is a location information request message; the first response message is a location information response message or a location information update message.

21. The method according to claim 16, characterized in that, The second SRS configuration includes at least one of the following: at least one port configuration, at least one repetition factor, at least one SRS resource type configuration, at least one frequency hopping configuration, and at least one extended port configuration.

22. The method according to claim 21, characterized in that, The port configuration includes one of the following: port 1, port 2, or port 4. The extended port configuration includes an 8-port configuration, wherein the 8-port configuration maps the 8 ports to two different subsets based on Time Division Multiplexing (TDM), and the different subsets are mapped to different symbols.

23. The method according to claim 21, characterized in that, The frequency hopping configuration includes at least one of the following: overlap value, number of frequency hopping, frequency hopping comb offset, SRS transmission duration, SRS transmission period, SRS offset, starting SFN where the SRS is located, frequency hopping repetition mode, frequency hopping cycle offset, and frequency hopping granularity; the SRS resource type configuration includes one of the following: non-periodic configuration, semi-periodic configuration, and periodic configuration.

24. The method according to claim 23, characterized in that, The periodic configuration includes at least one of period value, time slot offset, and superframe periodic configuration; the non-periodic configuration includes time slot offset; the half-periodic configuration includes at least one of period value, time slot offset, and superframe periodic configuration; the superframe periodic configuration is used to indicate whether the superframe is an even number of superframes or an odd number of superframes when positioning SRS transmission.

25. The method according to claim 23, characterized in that, The repetition factor includes at least one of a plurality of parameter values; the plurality of parameter values ​​are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14; the overlap value includes 0 RBs, 1 RB, 2 RBs, and 4 RBs; the frequency hopping number ranges from 1 to 6; the frequency hopping comb offset includes a frequency hopping identifier and / or a frequency hopping subset; the frequency hopping identifier ranges from 0 to 1023, and the frequency hopping subset includes 2-comb split transmission, 4-comb split transmission, or 8-comb split transmission.

26. The method according to claim 16, characterized in that, The inactive SRS configuration information includes at least one of the inactive SRS first configuration and the inactive SRS second configuration; The inactive SRS first configuration includes the SRS configuration on the normal uplink NUL carrier, the SRS configuration on the supplementary uplink SUL carrier, the bandwidth portion (BWP) configuration of the NUL carrier, the BWP configuration of the SUL carrier, the TA timer in the inactive state, and the reference signal received power (RSRP) change threshold in the inactive state. The inactive SRS second configuration includes at least one of the following: inactive SRS positioning aggregation bandwidth configuration, SRS positioning transmission frequency hopping configuration, at least one inactive effective area pre-configuration, and at least one inactive effective area non-pre-configuration.

27. The method according to claim 26, characterized in that, The inactive SRS positioning aggregation bandwidth configuration includes at least one of subcarrier spacing and SRS carrier frequency; wherein, the SRS carrier frequency represents the carrier frequency for the SRS resource set of bandwidth aggregation; The pre-configuration of the inactive valid area includes at least one of the following: at least one cell identifier, SRS positioning configuration for the NUL carrier, SRS positioning configuration for the SUL carrier, BWP configuration on the NUL carrier, BWP configuration on the SUL carrier, and TA configuration of the valid area.

28. The method according to claim 27, characterized in that, The TA configuration of the effective area includes an inactive SRS positioning effective area TA timer, an inactive SRS positioning effective area RSRP change threshold, and an indication of whether TA adjustment is performed automatically.

29. The method according to claim 16, characterized in that, After sending the first response message to the centralized unit (CU), the method further includes: The system receives an interface message from the centralized unit (CU), the interface message including an RRC configuration message; the RRC configuration message includes at least one of the second SRS information and the inactive SRS configuration information. The RRC configuration message is sent to the terminal, and the RRC configuration message is used to instruct the terminal to complete the transmission configuration of the SRS signal.

30. The method according to claim 29, characterized in that, The RRC configuration message is either an RRC reconfiguration message or an RRC release message.

31. An uplink positioning method, characterized in that, Applied to a terminal, the method includes: Receive an RRC configuration message from a network entity. The RRC configuration message includes at least one of second SRS information and inactive SRS configuration information. The second SRS information includes at least one of second SRS configuration and carrier aggregation configuration.

32. The method according to claim 31, characterized in that, The network entity is a distributed unit (DU), a centralized unit (CU), or a base station.

33. The method according to claim 31, characterized in that, The RRC configuration message is either an RRC reconfiguration message or an RRC release message.

34. The method according to claim 31, characterized in that, The second SRS configuration includes at least one of the following: at least one port configuration, at least one repetition factor, at least one SRS resource type configuration, at least one frequency hopping configuration, and at least one extended port configuration.

35. The method according to claim 34, characterized in that, The port configuration includes one of the following: port 1, port 2, or port 4. The extended port configuration includes an 8-port configuration, wherein the 8-port configuration maps the 8 ports to two different subsets based on Time Division Multiplexing (TDM), and the different subsets are mapped to different symbols.

36. The method according to claim 34, characterized in that, The frequency hopping configuration includes at least one of the following: overlap value, number of frequency hopping, frequency hopping comb offset, SRS transmission duration, SRS transmission period, SRS offset, starting SFN where the SRS is located, frequency hopping repetition mode, frequency hopping cycle offset, and frequency hopping granularity; the SRS resource type configuration includes one of the following: non-periodic configuration, semi-periodic configuration, and periodic configuration.

37. The method according to claim 36, characterized in that, The periodic configuration includes at least one of period value, time slot offset, and superframe periodic configuration; the non-periodic configuration includes time slot offset; the half-periodic configuration includes at least one of period value, time slot offset, and superframe periodic configuration; the superframe periodic configuration is used to indicate whether the superframe is an even number of superframes or an odd number of superframes when positioning SRS transmission.

38. The method according to claim 36, characterized in that, The repetition factor includes at least one of a plurality of parameter values; the plurality of parameter values ​​are 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14; the overlap value includes 0 RBs, 1 RB, 2 RBs, and 4 RBs; the frequency hopping number ranges from 1 to 6; the frequency hopping comb offset includes a frequency hopping identifier and / or a frequency hopping subset; the frequency hopping identifier ranges from 0 to 1023, and the frequency hopping subset includes 2-comb split transmission, 4-comb split transmission, or 8-comb split transmission.

39. The method according to claim 31, characterized in that, The inactive SRS configuration information includes at least one of the inactive SRS first configuration and the inactive SRS second configuration; The inactive SRS first configuration includes the SRS configuration on the normal uplink NUL carrier, the SRS configuration on the supplementary uplink SUL carrier, the bandwidth portion (BWP) configuration of the NUL carrier, the BWP configuration of the SUL carrier, the TA timer in the inactive state, and the reference signal received power (RSRP) change threshold in the inactive state. The inactive SRS second configuration includes at least one of the following: inactive SRS positioning aggregation bandwidth configuration, SRS positioning transmission frequency hopping configuration, at least one inactive effective area pre-configuration, and at least one inactive effective area non-pre-configuration.

40. The method according to claim 39, characterized in that, The inactive SRS positioning aggregation bandwidth configuration includes at least one of subcarrier spacing and SRS carrier frequency; wherein, the SRS carrier frequency represents the carrier frequency for the SRS resource set of bandwidth aggregation; The pre-configuration of the inactive valid area includes at least one of the following: at least one cell identifier, SRS positioning configuration for the NUL carrier, SRS positioning configuration for the SUL carrier, BWP configuration on the NUL carrier, BWP configuration on the SUL carrier, and TA configuration of the valid area.

41. The method according to claim 40, characterized in that, The TA configuration of the effective area includes an inactive SRS positioning effective area TA timer, an inactive SRS positioning effective area RSRP change threshold, and an indication of whether TA adjustment is performed automatically.

42. The method according to claim 31, characterized in that, The method further includes: completing the transmission configuration of the SRS signal according to the RRC configuration message.

43. A positioning configuration device, characterized in that, The device, applied to a centralized unit (CU), includes: A request message sending module is used to send a first request message to a distribution unit (DU). The first request message includes at least one of first SRS information and inactive SRS location query indication information. The first SRS information includes at least one of first SRS configuration and bandwidth aggregation request indication. The bandwidth aggregation request indication is used to obtain one or more carrier aggregation configurations. The response message receiving module is configured to receive a first response message from the distribution unit (DU); the first response message includes at least one of second SRS information and inactive SRS configuration information; the second SRS information includes at least one of second SRS configuration and carrier aggregation configuration.

44. A positioning configuration device, characterized in that, The device, applied to a distribution unit (DU), includes: The request message receiving module is configured to receive a first request message from the central unit (CU), wherein the first request message includes at least one of first SRS information and inactive SRS positioning query indication information; the first SRS information includes at least one of first SRS configuration and bandwidth aggregation request indication; the bandwidth aggregation request indication is used to obtain one or more carrier aggregation configurations. A response message sending module is used to send a first response message to the centralized unit CU; the first response message includes at least one of second SRS information and inactive SRS configuration information; the second SRS information includes at least one of second SRS configuration and carrier aggregation configuration.

45. An uplink positioning device, characterized in that, Applied to a terminal, the device includes: A configuration message receiving module is configured to receive an RRC configuration message from a network entity. The RRC configuration message includes at least one of second SRS information and inactive SRS configuration information. The second SRS information includes at least one of second SRS configuration and carrier aggregation configuration.

46. ​​A centralized unit (CU) comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 15.

47. A distributed unit (DU) comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 16 to 30.

48. A terminal comprising a memory and a processor, the memory storing a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 31 to 42.

49. A communication system, characterized in that, It includes the centralized unit CU as described in claim 46, the distributed unit DU as described in claim 47, and the terminal as described in claim 48.

50. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 42.

51. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 42.

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