Positioning method, device, terminal, network side equipment and storage medium

Abstract

The present disclosure relates to a positioning method, device, terminal, network-side device and storage medium, and belongs to the field of communication technology. The method comprises: determining random access resources for positioning purposes, wherein the random access resources for positioning purposes include time domain resources, frequency domain resources and random access preamble codes for positioning purposes of a random access channel for positioning purposes; and sending the random access preamble codes for positioning purposes to a network-side device through the time domain resources and frequency domain resources of the random access channel for positioning purposes. This application is a divisional application of application number 202080001449.3.

Description

[0001] This application is a divisional application of the Chinese application with application number 202080001449.3, application date July 1, 2020, and invention name “Positioning method, device, terminal, network side equipment and storage medium”. Technical Field

[0002] The present disclosure relates to the field of communication technology, and in particular to a positioning method, apparatus, terminal, network-side equipment and storage medium. Background Art

[0003] Terminal positioning refers to a technology that transmits signals between the terminal and the network side equipment, and then one party measures the signal and determines the location of the terminal based on the measurement results to achieve the positioning of the terminal. Summary of the invention

[0004] The embodiments of the present disclosure provide a positioning method, apparatus, terminal, network-side device and storage medium, which can realize terminal positioning in an idle state. The technical solution is as follows:

[0005] According to an aspect of an embodiment of the present disclosure, a positioning method is provided, the method comprising:

[0006] Determine random access resources for positioning purposes, wherein the random access resources for positioning purposes include time domain resources, frequency domain resources and a random access preamble code for positioning purposes of a random access channel for positioning purposes;

[0007] The random access preamble code for positioning is sent to the network side device through the time domain resources and frequency domain resources of the random access channel for positioning.

[0008] According to an aspect of an embodiment of the present disclosure, a positioning method is provided, the method comprising:

[0009] A random access preamble for positioning sent by a receiving terminal through time domain resources and frequency domain resources of a random access channel for positioning, wherein the time domain resources, frequency domain resources and random access preamble for positioning constitute random access resources for positioning;

[0010] In response to receiving the random access preamble for positioning, performing positioning measurements on the terminal.

[0011] According to one aspect of an embodiment of the present disclosure, a positioning device is provided, the device comprising:

[0012] A determination module is configured to determine random access resources for positioning purposes, wherein the random access resources for positioning purposes include time domain resources, frequency domain resources and a random access preamble for positioning purposes of a random access channel for positioning purposes;

[0013] The sending module is configured to send the random access preamble code for positioning purpose to the network side device through the time domain resources and frequency domain resources of the random access channel for positioning purpose.

[0014] According to one aspect of an embodiment of the present disclosure, a positioning device is provided, the device comprising:

[0015] A receiving module is configured to receive a random access preamble for positioning sent by a terminal through time domain resources and frequency domain resources of a random access channel for positioning, wherein the time domain resources, frequency domain resources and the random access preamble for positioning constitute random access resources for positioning;

[0016] The positioning module is configured to perform positioning measurement on the terminal in response to receiving the random access preamble code for positioning purpose.

[0017] According to another aspect of an embodiment of the present disclosure, a terminal is provided, comprising: a processor; and a memory for storing processor-executable instructions; wherein the processor is configured to load and execute the executable instructions to implement the aforementioned positioning method.

[0018] According to another aspect of an embodiment of the present disclosure, a network side device is provided, comprising: a processor; a memory for storing processor executable instructions; wherein the processor is configured to load and execute the executable instructions to implement the aforementioned positioning method.

[0019] According to another aspect of an embodiment of the present disclosure, a computer-readable storage medium is provided. When instructions in the computer-readable storage medium are executed by a processor, the positioning method as described above can be executed.

[0020] In the disclosed embodiment, the random access preamble for positioning is sent to the network side device through the time domain resources and frequency domain resources of the random access channel for positioning determined by the terminal, so that the network side device can complete the positioning measurement of the terminal based on the preamble. Since the sending of the preamble is completed when the terminal is in an idle state, the process can realize the positioning of the terminal in an idle state or an inactive state. The terminal can realize positioning without entering a connected state, which can reduce the energy consumption of the terminal, and can also quickly know the positioning result when the terminal enters a connected state, reducing the positioning delay.

[0021] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0023] Figure 1 Shown is a block diagram of a communication system provided by an exemplary embodiment of the present disclosure;

[0024] Figure 2 is a flow chart of a positioning method according to an exemplary embodiment;

[0025] Figure 3 is a flow chart of a positioning method according to an exemplary embodiment;

[0026] Figure 4 is a flow chart of a positioning method according to an exemplary embodiment;

[0027] Figure 5 is a flow chart of a positioning method according to an exemplary embodiment;

[0028] Figure 6 is a structural schematic diagram of a positioning device according to an exemplary embodiment;

[0029] Figure 7 is a structural schematic diagram of a positioning device according to an exemplary embodiment;

[0030] Figure 8 is a block diagram of a terminal according to an exemplary embodiment;

[0031] Fig. 9 The invention is a block diagram of a network side device according to an exemplary embodiment. DETAILED DESCRIPTION

[0032] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0033] The terms used in the disclosed embodiments are only for the purpose of describing specific embodiments and are not intended to limit the disclosed embodiments. The singular forms of "a", "an" and "the" used in the disclosed embodiments and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0034] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the disclosed embodiments, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the disclosed embodiments, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "if" as used herein may be interpreted as "at" or "when" or "in response to determination".

[0035] It should be understood that although the steps are described in a numbered manner for ease of understanding in the embodiments of the present disclosure, these numbers do not represent the order in which the steps are executed, nor do they mean that the steps with sequential numbering must be executed together. It should be understood that one or more of the multiple steps with sequential numbering can be executed separately to solve the corresponding technical problems and achieve the predetermined technical solutions. Even if multiple steps are exemplarily listed together in the accompanying drawings, it does not mean that these steps must be executed together; the accompanying drawings are only exemplarily listed together for ease of understanding.

[0036] Figure 1 FIG. 1 is a block diagram of a communication system provided by an exemplary embodiment of the present disclosure. Figure 1 As shown, the communication system may include: a network side 12 and a terminal 13.

[0037] The network side 12 includes several network side devices 120. The network side device 120 can be a base station, which is a device deployed in the access network to provide wireless communication functions for the terminal. The base station can be the base station of the service cell of the terminal 13, or the base station of the cell adjacent to the service cell of the terminal 13. The base station can include various forms of macro base stations, micro base stations, relay stations, access points, transmission reception points (Transmission Reception Point, TRP), etc. In systems using different wireless access technologies, the names of devices with base station functions may be different. In the 5G new air interface (NR, New Radio) system, it is called gNodeB or gNB. With the evolution of communication technology, the name "base station" may be described and changed. The network side device 120 may also be a location management function entity (Location Management Function, LMF).

[0038] The terminal 13 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem, as well as various forms of user equipment, mobile stations (MS), terminals, Internet of Things (IoT), Industrial Internet of Things (IIoT), etc. For the convenience of description, the above-mentioned devices are collectively referred to as terminals. The network side device 120 and the terminal 13 communicate with each other through some air interface technology, such as a Uu interface.

[0039] In NR Rel-16, the main discussion is about the positioning measurement of terminals in the connected state, and the positioning reference signals are defined, including the positioning reference signal (PRS) and the sounding reference signal (SRS). However, there is no corresponding positioning method for terminals in the idle state or inactive state in the related art.

[0040] In fact, there is a great demand for locating idle or inactive terminals. For example, for bracelets, watches or mobile phones worn by children, parents want to use their own mobile phones to locate their children by locating their bracelets, watches or mobile phones, without having to make a phone call. Or for smart home devices such as smart door locks and sweeping robots, it is also hoped that positioning and ranging can be performed in the idle state, so that it can be operated at the most appropriate time.

[0041] The communication system and business scenarios described in the embodiments of the present disclosure are intended to more clearly illustrate the technical solutions of the embodiments of the present disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. Those skilled in the art will appreciate that with the evolution of communication systems and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are equally applicable to similar technical problems.

[0042] Figure 2 is a flow chart of a positioning method according to an exemplary embodiment. Figure 2 , the method comprises the following steps:

[0043] In step 101, the terminal determines random access resources for positioning purposes, where the random access resources for positioning purposes include time domain resources, frequency domain resources and a random access preamble code for positioning purposes of a random access channel for positioning purposes.

[0044] Exemplarily, the terminal here may be an idle terminal, an inactive terminal, a terminal with a beam failure, or a terminal with a radio link failure. In all of these cases, the scheme provided by the present disclosure may be used to perform positioning measurements. Since these schemes include idle terminals, the scheme may be used to perform positioning measurements of terminals in the idle state.

[0045] In step 102, the terminal sends the random access preamble code for positioning to the network side device through the time domain resources and frequency domain resources of the random access channel for positioning.

[0046] Exemplarily, the network side device here can be a network side device in the service cell of the terminal, or a network side device in a cell adjacent to the service cell of the terminal. For example, the network side device can be a device corresponding to one or more transmit receive points (TRPs) in the service cell of the terminal, or a device corresponding to one or more transmit receive points (TRPs) in a cell adjacent to the service cell of the terminal.

[0047] In the disclosed embodiment, the random access preamble for positioning is sent to the network side device through the time domain resources and frequency domain resources of the random access channel for positioning determined by the terminal, so that the network side device can complete the positioning measurement of the terminal based on the preamble. Since the sending of the preamble is completed when the terminal is in an idle state, the process can realize the positioning of the terminal in an idle state or an inactive state. The terminal can realize positioning without entering a connected state, which can reduce the energy consumption of the terminal, and can also quickly know the positioning result when the terminal enters a connected state, reducing the positioning delay.

[0048] In an implementation manner of the embodiment of the present disclosure, the random access resources for positioning purposes and the random access resources for random access purposes include at least one of time domain resources, frequency domain resources and preamble codes which are different.

[0049] When the random access resources for positioning purposes are different from the random access resources for random access purposes, the network side device can determine whether the terminal is performing random access or requesting positioning measurement based on the difference between the two. Exemplarily, the random access resources for positioning purposes and the random access resources for random access purposes may differ in one, two, or three items.

[0050] In one case, all random access resources are used for random access purposes. The present disclosure allocates a portion of the random access resources for random access purposes for positioning purposes, wherein the time-frequency code domain only needs to have one dimension that is different. For example, the time-frequency domain resources are the same, but the preamble preamble#1 is used for positioning purposes, and the other preambles are used for random access purposes; or the time domain is the same as the preamble, and the frequency domain resources with the lowest frequency are allocated for positioning purposes; or the frequency domain is the same as the preamble, and the time domain resources with the earliest time domain are allocated for positioning purposes. In another case, the random access resources for positioning purposes are newly allocated random access resources specifically used for positioning purposes, and do not occupy the random access resources for random access purposes. For example, the time-frequency domain resources for positioning purposes are the same as the random access resources for random access purposes, but a new random access preamble code specifically for positioning purposes is configured; or the frequency domain and preamble code for positioning purposes are the same as the random access resources for random access purposes, but a new time domain resources specifically for positioning purposes is configured; or the time domain and preamble code for positioning purposes are the same as the random access resources for random access purposes, but a new frequency domain resources specifically for positioning purposes is configured.

[0051] Furthermore, the random access resources correspond to the synchronization signal block (Synchronization Signal Block, SSB), and different synchronization signal blocks correspond to different random access resources for random access purposes, and different synchronization signal blocks correspond to different random access resources for positioning purposes.

[0052] Exemplarily, in the random access resources corresponding to each synchronization signal block, the frequency domain resources with the lowest frequency are allocated for positioning purposes, and the frequency domain resources of the remaining frequency points are allocated for random access purposes;

[0053] Alternatively, in the random access resources corresponding to each synchronization signal block, the earliest time domain resources are allocated for positioning, and the remaining time domain resources are allocated for random access;

[0054] Alternatively, in the random access resources corresponding to each synchronization signal block, the preamble code with the smallest number is allocated for positioning purposes, and the preamble codes with remaining numbers are allocated for random access purposes.

[0055] In the related technology, when the terminal performs initial synchronization with the base station, the terminal detects the SSB sent by the base station and obtains the index of the SSB, thereby knowing the symbol position of the SSB, so the terminal and the base station achieve downlink symbol synchronization. In order to achieve uplink synchronization, the terminal needs to send a random access preamble (RApreamble), and how to select this preamble and which RO (RO refers to time-frequency resource) this preamble is sent on is determined by the SSB received by the user and which SSBs are actually sent by the base station and the RO position set. Therefore, different synchronization signal blocks correspond to different random access resources.

[0056] In another implementation manner of the embodiment of the present disclosure, the random access resources for positioning purposes and the random access resources for random access purposes include the same time domain resources, frequency domain resources and preamble codes.

[0057] When the random access resources for positioning purposes are the same as the random access resources for random access purposes, the same random access resources are used for both random access and positioning-related indications. At this time, the terminal can send indication information to the network-side device during the random access process to instruct the network-side device to perform positioning-related operations. For example, the indication information is sent to the network-side device using the uplink physical shared channel (Physical Uplink Shared Channel, PUSCH) of MsgA or Msg3, and the indication information includes the positioning measurement result of the terminal, and the positioning measurement result is a measurement result obtained by the terminal for measuring the positioning reference signal sent by the network-side device, and the measurement result includes at least one of the following: a signal strength measurement value, a time measurement value, and an angle measurement value.

[0058] Exemplarily, the signal strength measurement value includes at least one of the following: Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), Received signal strength indicator (RSSI). The time measurement value includes at least one of the following: Reference Signal Time Difference (RSTD), Receive-Transmit Time Difference (Rx-Tx time difference). The angle measurement value includes at least one of the following: Angle of Departure (AoD) and Angle of Arrival (AoA).

[0059] The terminal random access resource process can be divided into type 1 4-step random access and type 2 2-step random access. Msg3 is a message sent by the terminal to the network side device during the 4-step random access process, and MsgA is a message sent by the terminal to the network side device during the 2-step random access process.

[0060] Optionally, the determining of the random access resource for positioning purposes includes:

[0061] Based on at least one of the synchronization signal block sent by the network side device, the broadcast information sent by the network side device, the system information sent by the network side device, the physical downlink control channel (Physical Downlink Control Channel, PDCCH) sent by the network side device, the positioning protocol message sent by the positioning management function entity (Location Management Function, LMF), and local storage (such as the default random access resource stored in the terminal chip), the random access resource for the positioning purpose is determined.

[0062] Among them, the positioning protocol message includes but is not limited to LTE Positioning Protocol (LTE Positioning Protocol, LPP) message and New Radio (New Radio, NR) positioning protocol message.

[0063] In this implementation manner, the terminal may determine the random access resources for positioning purposes based on the above manner.

[0064] Optionally, before determining the random access resource for positioning, the method further includes:

[0065] Determine a positioning request, where the positioning request is used to instruct the terminal to determine a random access resource for the positioning purpose, and the positioning request includes any of the following:

[0066] A positioning request triggered by the terminal's own service;

[0067] Obtaining a positioning request sent by the network side device by monitoring the network side device;

[0068] A positioning request sent by an access and mobility management function (AMF) and / or a positioning management function is received.

[0069] The terminal's own service trigger may be a positioning requirement triggered when the terminal uses an application (APP).

[0070] The terminal monitors the PDCCH, broadcast information, system information, etc. sent by the network side device, and obtains the positioning request sent by the network side device through the monitored information.

[0071] The access mobility management entity sends a positioning request to the terminal via a non-access stratum (NAS) message, and the positioning management function entity sends a positioning request via a positioning protocol message.

[0072] Optionally, after the terminal sends the random access preamble for positioning, the positioning measurement can be completed in the following ways: one is to complete the positioning measurement using the transmission power value of the random access preamble for positioning, and the other is to complete the positioning measurement using the measurement result of the positioning reference signal. The detailed steps of the two ways are as follows.

[0073] In one implementation of the embodiment of the present disclosure, the method further includes:

[0074] The transmission power value of the random access preamble code for positioning purpose is sent to the network side device and / or the positioning management function entity.

[0075] In this implementation, the network side device and / or the positioning management function entity can determine the path loss between the network side device and / or the positioning management function entity and the terminal according to the transmission power value of the random access preamble for positioning and the reception power value of the random access preamble for positioning, and determine the distance between the two based on the path loss. The terminal can be positioned by the distance between multiple network side devices and the terminal and the positions of multiple network side devices.

[0076] Among them, the terminal can directly send the size of the transmit power value, or send the number of power increases to indicate the size of the transmit power value. The transmit power value is the value of the initial transmit power after N times of increase, and the initial transmit power value and the value of each increase are agreed upon by the terminal and the network side equipment.

[0077] In another implementation, when the terminal sends a random access preamble code for positioning purposes, it uses the power agreed with the network side device or the positioning management functional entity, so there is no need to upload the sending power value, and the network side device or the positioning management functional entity can also perform positioning measurement.

[0078] The sending power value of the random access preamble code for positioning purpose to the network side device and / or the positioning management function entity includes:

[0079] Sending the transmit power value to the network side device through the PUSCH of MsgA or Msg3 in the random access process, and / or sending the transmit power value to the positioning management function entity through at least one of a non-access layer message and a positioning protocol message;

[0080] Alternatively, after the terminal completes the random access process and switches to the connected state, the transmit power value is sent to the network side device via the PUSCH, and / or the transmit power value is sent to the positioning management function entity via a positioning protocol message.

[0081] In another implementation of the embodiment of the present disclosure, the method further includes:

[0082] Receiving a positioning reference signal sent by the network side device;

[0083] Obtaining a measurement result based on the positioning reference signal;

[0084] The measurement result is sent to the network side device and / or the positioning management function entity.

[0085] The sending of the measurement result to the network side device and / or the positioning management function entity includes:

[0086] Sending the measurement result to the network side device through the PUSCH of MsgA or Msg3 in the random access process, and / or sending the measurement result to the positioning management function entity through at least one of a non-access layer message and a positioning protocol message;

[0087] Alternatively, after the terminal completes the random access process and switches to the connected state, the measurement result is sent to the network side device through the PUSCH;

[0088] Alternatively, after the terminal completes the random access process and switches to the connected state, the terminal sends the measurement result to the positioning management function entity through a positioning protocol message.

[0089] The specific contents of the measurement results are as described above and will not be repeated here.

[0090] Optionally, the method further comprises:

[0091] After sending the measurement result or completing the random access process, the terminal switches back to the idle state.

[0092] In the embodiments of the present disclosure, the terminal switches back to the idle state after sending the measurement result, including the following situations:

[0093] Case 1: The terminal sends the measurement result using MsgA or Msg3 during the random access process, and switches to the idle state after the sending is completed. Alternatively, the terminal sends the measurement result using MsgA or Msg3 during the random access process, and switches to the idle state after receiving the reply to MsgA (ie, MsgB) or the reply to Msg3 (ie, Msg4).

[0094] Case 2: After the random access process is completed, the terminal enters the connected state, uses the PUSCH or LPP signaling in the connected state to send the measurement results, and after the sending is completed, switches to the idle state.

[0095] Case 3: After the random access process is completed, the terminal enters the connected state, uses the connected state PUSCH or LPP signaling to send the measurement results, and after the sending is completed, uses the positioning results to transmit services. After the service transmission is completed, it switches to the idle state.

[0096] In an embodiment of the present disclosure, the method further includes:

[0097] Sending a unique identifier of the terminal to the network side device through a PUSCH of MsgA or Msg3 in a random access process, and / or sending a unique identifier of the terminal to the positioning management function entity through at least one of a non-access layer message and a positioning protocol message;

[0098] Alternatively, after the terminal completes the random access process and switches to the connected state, the unique identifier of the terminal is sent to the network side device via PUSCH, and / or the unique identifier of the terminal is sent to the positioning management function entity via a positioning protocol message.

[0099] Exemplarily, the unique identifier of the terminal may be a user equipment identifier (UE ID), and the UE ID may be:

[0100] One of Cell-Radio Network Temporary Identifier (C-RNTI), Temporary C-RNTI, and NAS UE ID.

[0101] In the above process, the unique identifier of the terminal is sent to the network side device and / or the positioning management function entity to inform the network side device and / or the positioning management function entity which terminal sent the random access preamble code for positioning purposes, so as to realize positioning measurement for the terminal.

[0102] It is worth noting that the aforementioned steps 101 to 102 and the aforementioned optional steps can be combined arbitrarily.

[0103] Figure 3is a flow chart of a positioning method according to an exemplary embodiment. Figure 3 , the method comprises the following steps:

[0104] In step 201, a network side device receives a random access preamble for positioning purposes sent by a terminal through the time domain resources and frequency domain resources of a random access channel for positioning purposes, wherein the time domain resources, frequency domain resources and random access preamble for positioning purposes of the random access channel for positioning purposes constitute random access resources for positioning purposes.

[0105] In step 202, the network-side device performs positioning measurement on the terminal in response to receiving the random access preamble code for positioning purpose.

[0106] In the disclosed embodiment, the random access preamble for positioning is sent to the network side device through the time domain resources and frequency domain resources of the random access channel for positioning determined by the terminal, so that the network side device can complete the positioning measurement of the terminal based on the preamble. Since the sending of the preamble is completed when the terminal is in an idle state, the process can realize the positioning of the terminal in an idle state or an inactive state. The terminal can realize positioning without entering a connected state, which can reduce the energy consumption of the terminal, and can also quickly know the positioning result when the terminal enters a connected state, reducing the positioning delay.

[0107] Optionally, the random access resource for positioning and the random access resource for random access include at least one of a time domain resource, a frequency domain resource and a preamble code that is different;

[0108] Alternatively, the random access resources for positioning purposes and the random access resources for random access purposes include the same time domain resources, frequency domain resources and preamble codes.

[0109] Optionally, in the random access resources corresponding to each synchronization signal block, the frequency domain resources with the lowest frequency are allocated for positioning, and the frequency domain resources of the remaining frequencies are allocated for random access;

[0110] Alternatively, in the random access resources corresponding to each synchronization signal block, the earliest time domain resources are allocated for positioning, and the remaining time domain resources are allocated for random access;

[0111] Alternatively, in the random access resources corresponding to each synchronization signal block, the preamble code with the smallest number is allocated for positioning purposes, and the preamble codes with remaining numbers are allocated for random access purposes.

[0112] In an implementation manner of the embodiment of the present disclosure, performing positioning measurement on the terminal includes:

[0113] receiving a transmission power value of a random access preamble code for positioning sent by the terminal;

[0114] Based on the transmit power value and the received signal strength value of the random access preamble code for positioning purposes, the distance between the network side device and the terminal is determined.

[0115] Optionally, the receiving a transmission power value of a random access preamble code for positioning sent by the terminal includes:

[0116] Receiving the transmit power value sent by the terminal through a PUSCH of MsgA or Msg3 in a random access process;

[0117] Alternatively, when the terminal is in a connected state, the transmit power value sent by the terminal is received through the PUSCH.

[0118] In another implementation manner of the embodiment of the present disclosure, performing positioning measurement on the terminal includes:

[0119] Sending a positioning reference signal to the terminal;

[0120] receiving a measurement result sent by the terminal and obtained based on the positioning reference signal;

[0121] Based on the measurement result, the distance between the network side device and the terminal is determined.

[0122] Optionally, the receiving a measurement result sent by the terminal and obtained based on the positioning reference signal includes:

[0123] Receiving the measurement result sent by the terminal through the PUSCH of MsgA or Msg3 in the random access process;

[0124] Alternatively, when the terminal is in a connected state, the measurement result sent by the terminal is received through the PUSCH.

[0125] Optionally, the measurement result includes at least one of the following:

[0126] Signal strength measurements, time measurements, angle measurements.

[0127] Exemplarily, the signal strength measurement value includes at least one of the following: RSRP, RSRQ, RSSI. The time measurement value includes at least one of the following: RSTD, receive-transmit time difference. The angle measurement value includes at least one of the following: AoD and AoA.

[0128] Optionally, the method further comprises:

[0129] Receiving a unique identifier sent by the terminal through a PUSCH of MsgA or Msg3 in a random access process;

[0130] Alternatively, when the terminal is in a connected state, the unique identifier sent by the terminal is received through the PUSCH.

[0131] Exemplarily, the unique identifier of the terminal may be a UE ID, and the UE ID may be one of: a C-RNTI, a temporary C-RNTI, and a NAS UE ID.

[0132] Optionally, the method further comprises:

[0133] A synchronization signal block, broadcast information, system information or PDCCH is sent to the terminal, where the synchronization signal block, broadcast information, system information or PDCCH is used to indicate a random access resource for the positioning purpose.

[0134] It is worth noting that the aforementioned steps 201 to 202 and the aforementioned optional steps can be combined arbitrarily.

[0135] Figure 4 is a flow chart of a positioning method according to an exemplary embodiment. Figure 4 , the method comprises the following steps:

[0136] In step 301, the terminal determines random access resources for positioning purposes, where the random access resources for positioning purposes include time domain resources, frequency domain resources and a random access preamble code for positioning purposes of a random access channel for positioning purposes.

[0137] Exemplarily, the terminal can determine the random access resources for the positioning purpose based on at least one of the synchronization signal block sent by the network side device, the broadcast information sent by the network side device, the system information sent by the network side device, the physical downlink control channel sent by the network side device, the positioning protocol message sent by the positioning management function entity, and local storage.

[0138] Optionally, before determining the random access resource for positioning, the method further includes:

[0139] Determine a positioning request, where the positioning request is used to instruct the terminal to determine a random access resource for the positioning purpose, and the positioning request includes any of the following:

[0140] A positioning request triggered by the terminal's own service;

[0141] Obtaining a positioning request sent by the network side device by monitoring the network side device;

[0142] A positioning request sent by an access mobility management entity and / or a positioning management function entity is received.

[0143] In step 302, the terminal sends the positioning purpose random access preamble to the network side device through the time domain resources and frequency domain resources of the positioning purpose random access channel. The network side device receives the positioning purpose random access preamble sent by the terminal through the time domain resources and frequency domain resources of the positioning purpose random access channel.

[0144] Optionally, the random access resource for positioning and the random access resource for random access include at least one of a time domain resource, a frequency domain resource and a preamble code that is different;

[0145] Alternatively, the random access resources for positioning purposes and the random access resources for random access purposes include the same time domain resources, frequency domain resources and preamble codes.

[0146] In step 303, the terminal sends a transmit power value of a random access preamble for positioning to the network side device. The network side device receives the transmit power value of the random access preamble for positioning sent by the terminal.

[0147] Exemplarily, the terminal sends the transmit power value to the network side device through a PUSCH of MsgA or Msg3 in a random access process;

[0148] Alternatively, after the terminal completes the random access process and switches to the connected state, the transmit power value is sent to the network side device through the PUSCH.

[0149] In step 304, the network side device determines the distance between the network side device and the terminal based on the transmit power value and the received signal strength value of the random access preamble code for positioning purpose.

[0150] The network side device can determine the path loss between the network side device and the terminal based on the transmission power value of the random access preamble code for positioning and the reception power value of the random access preamble code for positioning, and determine the distance between the two based on the path loss. The terminal can be located by the distance between multiple network side devices and the terminal and the positions of multiple network side devices.

[0151] After determining the location of the terminal, the network side device can send the positioning result to the terminal after the terminal is connected to the connection state, so that the terminal can use the positioning result to transmit services in the connection state.

[0152] Figure 5 is a flow chart of a positioning method according to an exemplary embodiment. Figure 5 , the method comprises the following steps:

[0153] In step 401, the terminal determines random access resources for positioning purposes, where the random access resources for positioning purposes include time domain resources, frequency domain resources and a random access preamble code for positioning purposes of a random access channel for positioning purposes.

[0154] The manner in which the terminal determines random access resources for positioning purposes may refer to step 301 .

[0155] In step 402, the terminal sends the positioning purpose random access preamble to the network side device through the time domain resources and frequency domain resources of the positioning purpose random access channel. The network side device receives the positioning purpose random access preamble sent by the terminal through the time domain resources and frequency domain resources of the positioning purpose random access channel.

[0156] Optionally, the random access resource for positioning and the random access resource for random access include at least one of a time domain resource, a frequency domain resource and a preamble code that is different;

[0157] Alternatively, the random access resources for positioning purposes and the random access resources for random access purposes include the same time domain resources, frequency domain resources and preamble codes.

[0158] In step 403, the network side device sends a positioning reference signal to the terminal. The terminal receives the positioning reference signal sent by the network side device.

[0159] It should be noted that, in step 403, the network side device may first send a positioning reference signal to the terminal before step 401, for example, the network side device periodically broadcasts the positioning reference signal. After the terminal measures the positioning reference signal, it performs steps 401, 402, 404, 405 and 406.

[0160] In step 404, the terminal obtains a measurement result based on the positioning reference signal.

[0161] Exemplarily, the measurement result includes at least one of the following:

[0162] Signal strength measurements, time measurements, angle measurements.

[0163] In step 405, the terminal sends the measurement result to the network side device. The network side device receives the measurement result sent by the terminal and obtained based on the positioning reference signal.

[0164] The terminal may send the measurement result in the same manner as the power value sent in step 303 .

[0165] In step 406, the network side device determines the distance between the network side device and the terminal based on the measurement result.

[0166] For example, the network side device can determine the distance between the network side device and the terminal based on the signal strength measurement value. The terminal can be located by the distances between multiple network side devices and the terminal and the positions of multiple network side devices.

[0167] After determining the location of the terminal, the network side device can send the positioning result to the terminal after the terminal is connected to the connection state, so that the terminal can use the positioning result to transmit services in the connection state.

[0168] Figure 6 1 is a schematic diagram of a positioning device according to an exemplary embodiment. The device has the function of implementing the terminal in the above method embodiment, and the function can be implemented by hardware or by hardware executing corresponding software. Figure 6 As shown, the device includes: a determination module 501 and a sending module 502.

[0169] Among them, the determination module 501 is configured to determine the random access resources for positioning purposes, and the random access resources for positioning purposes include time domain resources, frequency domain resources and random access preamble codes for positioning purposes of a random access channel for positioning purposes; the sending module 502 is configured to send the random access preamble code for positioning purposes to the network side device through the time domain resources and frequency domain resources of the random access channel for positioning purposes.

[0170] Optionally, the random access resource for positioning and the random access resource for random access include at least one of a time domain resource, a frequency domain resource and a preamble code that is different;

[0171] Alternatively, the random access resources for positioning purposes and the random access resources for random access purposes include the same time domain resources, frequency domain resources and preamble codes.

[0172] Optionally, in the random access resources corresponding to each synchronization signal block, the frequency domain resources with the lowest frequency are allocated for positioning, and the frequency domain resources of the remaining frequencies are allocated for random access;

[0173] Alternatively, in the random access resources corresponding to each synchronization signal block, the earliest time domain resources are allocated for positioning, and the remaining time domain resources are allocated for random access;

[0174] Alternatively, in the random access resources corresponding to each synchronization signal block, the preamble code with the smallest number is allocated for positioning purposes, and the preamble codes with remaining numbers are allocated for random access purposes.

[0175] Optionally, the determination module 501 is configured to determine the random access resources for the positioning purpose based on at least one of the synchronization signal block sent by the network side device, the broadcast information sent by the network side device, the system information sent by the network side device, the PDCCH sent by the network side device, the positioning protocol message sent by the positioning management function entity, and local storage.

[0176] Optionally, the determining module 501 is further configured to determine a positioning request before determining the random access resource for the positioning purpose, where the positioning request is used to instruct the terminal to determine the random access resource for the positioning purpose, and the positioning request includes any one of the following:

[0177] A positioning request triggered by the terminal's own service;

[0178] Obtaining a positioning request sent by the network side device by monitoring the network side device;

[0179] A positioning request sent by an access mobility management entity and / or a positioning management function entity is received.

[0180] Optionally, the sending module 502 is further configured to send a sending power value of a random access preamble code for positioning purposes to the network side device and / or the positioning management function entity.

[0181] Optionally, the sending module 502 is configured to send the transmit power value to the network side device through a PUSCH of MsgA or Msg3 in a random access process, and / or send the transmit power value to the positioning management function entity through at least one of a non-access layer message and a positioning protocol message;

[0182] Alternatively, after the terminal completes the random access process and switches to the connected state, the transmit power value is sent to the network side device via the PUSCH, and / or the transmit power value is sent to the positioning management function entity via a positioning protocol message.

[0183] Optionally, the device further comprises:

[0184] The receiving module 503 is configured to receive a positioning reference signal sent by the network side device;

[0185] The measurement module 504 is configured to obtain a measurement result based on the positioning reference signal;

[0186] The sending module 502 is further configured to send the measurement result to the network side device and / or the positioning management function entity.

[0187] Optionally, the sending module 502 is configured to send the measurement result to the network side device through a PUSCH of MsgA or Msg3 in a random access process, and / or send the measurement result to the positioning management function entity through at least one of a non-access layer message and a positioning protocol message;

[0188] Alternatively, after the terminal completes the random access process and switches to the connected state, the measurement result is sent to the network side device through the PUSCH;

[0189] Alternatively, after the terminal completes the random access process and switches to the connected state, the terminal sends the measurement result to the positioning management function entity through a positioning protocol message.

[0190] Optionally, the measurement result includes at least one of the following:

[0191] Signal strength measurements, time measurements, angle measurements.

[0192] Exemplarily, the signal strength measurement value includes at least one of the following: RSRP, RSRQ, RSSI. The time measurement value includes at least one of the following: RSTD, receive-transmit time difference. The angle measurement value includes at least one of the following: AoD and AoA.

[0193] Optionally, the device further comprises:

[0194] The switching module 505 is configured to switch back to the idle state after sending the measurement result or completing the random access process.

[0195] Optionally, the sending module 502 is configured to send the unique identifier of the terminal to the network side device through the PUSCH of MsgA or Msg3 in the random access process, and / or send the unique identifier of the terminal to the positioning management function entity through at least one of a non-access layer message and a positioning protocol message;

[0196] Alternatively, after the terminal completes the random access process and switches to the connected state, the unique identifier of the terminal is sent to the network side device via PUSCH, and / or the unique identifier of the terminal is sent to the positioning management function entity via a positioning protocol message.

[0197] Exemplarily, the unique identifier of the terminal may be a UE ID, and the UE ID may be one of: a C-RNTI, a temporary C-RNTI, and a NAS UE ID.

[0198] Figure 71 is a schematic diagram of a positioning device according to an exemplary embodiment. The device has the function of implementing the network side device in the above method embodiment, and the function can be implemented by hardware or by hardware executing corresponding software. Figure 7 As shown, the device includes: a receiving module 601 and a positioning module 602.

[0199] The receiving module 601 is configured to receive a random access preamble for positioning purposes sent by a terminal through time domain resources and frequency domain resources of a random access channel for positioning purposes, wherein the time domain resources, frequency domain resources and random access preamble for positioning purposes of the random access channel for positioning purposes constitute random access resources for positioning purposes;

[0200] The positioning module 602 is configured to perform positioning measurement on the terminal in response to receiving the random access preamble code for positioning.

[0201] Optionally, the random access resource for positioning and the random access resource for random access include at least one of a time domain resource, a frequency domain resource and a preamble code that is different;

[0202] Alternatively, the random access resources for positioning purposes and the random access resources for random access purposes include the same time domain resources, frequency domain resources and preamble codes.

[0203] Optionally, in the random access resources corresponding to each synchronization signal block, the frequency domain resources with the lowest frequency are allocated for positioning, and the frequency domain resources of the remaining frequencies are allocated for random access;

[0204] Alternatively, in the random access resources corresponding to each synchronization signal block, the earliest time domain resources are allocated for positioning, and the remaining time domain resources are allocated for random access;

[0205] Alternatively, in the random access resources corresponding to each synchronization signal block, the preamble code with the smallest number is allocated for positioning purposes, and the preamble codes with remaining numbers are allocated for random access purposes.

[0206] Optionally, the positioning module 602 includes:

[0207] The receiving submodule 621 is configured to receive a transmission power value of a random access preamble code for positioning sent by the terminal;

[0208] The determination submodule 622 is configured to determine the distance between the network side device and the terminal based on the transmission power value and the received signal strength value of the random access preamble code for positioning purpose.

[0209] Optionally, the receiving submodule 621 is configured to receive the transmit power value sent by the terminal through a PUSCH of MsgA or Msg3 in a random access process;

[0210] Alternatively, when the terminal is in a connected state, the transmit power value sent by the terminal is received through the PUSCH.

[0211] Optionally, the positioning module 602 includes:

[0212] The sending submodule 623 is configured to send a positioning reference signal to the terminal;

[0213] The receiving submodule 621 is configured to receive a measurement result sent by the terminal and obtained based on the positioning reference signal;

[0214] The determination submodule 622 is configured to determine the distance between the network side device and the terminal based on the measurement result.

[0215] Optionally, the receiving submodule 621 is configured to receive the measurement result sent by the terminal through a PUSCH of MsgA or Msg3 in a random access process;

[0216] Alternatively, when the terminal is in a connected state, the measurement result sent by the terminal is received through the PUSCH.

[0217] Optionally, the measurement result includes at least one of the following:

[0218] Signal strength measurements, time measurements, angle measurements.

[0219] Exemplarily, the signal strength measurement value includes at least one of the following: RSRP, RSRQ, RSSI. The time measurement value includes at least one of the following: RSTD, receive-transmit time difference. The angle measurement value includes at least one of the following: AoD and AoA.

[0220] Optionally, the device further comprises:

[0221] The receiving module 603 is configured to receive a unique identifier sent by the terminal through a PUSCH of MsgA or Msg3 in a random access process;

[0222] Alternatively, when the terminal is in a connected state, the unique identifier sent by the terminal is received through the PUSCH.

[0223] Exemplarily, the unique identifier of the terminal may be a UE ID, and the UE ID may be one of: a C-RNTI, a temporary C-RNTI, and a NAS UE ID.

[0224] Optionally, the device further comprises:

[0225] The sending module 604 is configured to send a synchronization signal block, broadcast information, system information or PDCCH to the terminal, where the synchronization signal block, broadcast information, system information or PDCCH is used to indicate a random access resource for the positioning purpose.

[0226] Figure 8 It is a block diagram of a terminal 700 according to an exemplary embodiment. The terminal 700 may include: a processor 701, a receiver 702, a transmitter 703, a memory 704 and a bus 705.

[0227] The processor 701 includes one or more processing cores. The processor 701 executes various functional applications and information processing by running software programs and modules.

[0228] The receiver 702 and the transmitter 703 may be implemented as a communication component, which may be a communication chip.

[0229] The memory 704 is connected to the processor 701 via a bus 705 .

[0230] The memory 704 may be used to store at least one instruction, and the processor 701 may be used to execute the at least one instruction to implement each step in the above method embodiment.

[0231] In addition, the memory 704 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, and the volatile or non-volatile storage device includes but is not limited to: a magnetic disk or an optical disk, an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a static random access memory (SRAM), a read-only memory (ROM), a magnetic memory, a flash memory, and a programmable read-only memory (PROM).

[0232] In an exemplary embodiment, a computer-readable storage medium is also provided, in which at least one instruction, at least one program, a code set or an instruction set is stored, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to implement the positioning method provided by the above-mentioned various method embodiments.

[0233] Fig. 9 8 is a block diagram of a network side device 800 according to an exemplary embodiment. The network side device 800 may include: a processor 801, a receiver 802, a transmitter 803 and a memory 804. The receiver 802, the transmitter 803 and the memory 804 are respectively connected to the processor 801 through a bus.

[0234] The processor 801 includes one or more processing cores, and the processor 801 executes the method performed by the network side device in the positioning method provided in the embodiment of the present disclosure by running software programs and modules. The memory 804 can be used to store software programs and modules. Specifically, the memory 804 can store an operating system 8041 and an application module 8042 required for at least one function. The receiver 802 is used to receive communication data sent by other devices, and the transmitter 803 is used to send communication data to other devices.

[0235] In an exemplary embodiment, a computer-readable storage medium is also provided, in which at least one instruction, at least one program, a code set or an instruction set is stored, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to implement the positioning method provided by the above-mentioned various method embodiments.

[0236] An exemplary embodiment of the present disclosure further provides a positioning system, the positioning system comprising a terminal and a network side device. The terminal is as follows Figure 8 The terminal provided in the embodiment shown in the figure. The network side device is as follows Fig. 9 The network side device provided in the illustrated embodiment.

[0237] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0238] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A positioning method, characterized in that: The method comprises: Determine, based on system information sent by a network side device, a random access resource for positioning purposes, wherein the random access resource for positioning purposes includes a time domain resource, a frequency domain resource, and a random access preamble code for positioning purposes of a random access channel for positioning purposes; the random access resource for positioning purposes and the random access resource for random access purposes include at least one of a time domain resource, a frequency domain resource, and a preamble code that is different; Sending the positioning purpose random access preamble code to the network side device through the time domain resources and frequency domain resources of the positioning purpose random access channel; the network side device is a network side device in the service cell of the terminal; The transmission power value of the random access preamble code for positioning purposes is sent to the network side device through the PUSCH of MsgA or Msg3 in the random access process.

2. The method according to claim 1, characterized in that In the random access resources corresponding to each synchronization signal block, the frequency domain resources with the lowest frequency are allocated for positioning, and the frequency domain resources of the remaining frequencies are allocated for random access; Alternatively, in the random access resources corresponding to each synchronization signal block, the earliest time domain resources are allocated for positioning, and the remaining time domain resources are allocated for random access; Alternatively, in the random access resources corresponding to each synchronization signal block, the preamble code with the smallest number is allocated for positioning purposes, and the preamble codes with remaining numbers are allocated for random access purposes.

3. The method according to claim 1 or 2, characterized in that: Before determining the random access resource for positioning, the method further includes: Determine a positioning request, where the positioning request is used to instruct the terminal to determine a random access resource for the positioning purpose, and the positioning request includes any of the following: A positioning request triggered by the terminal's own service; Obtaining a positioning request sent by the network side device by monitoring the network side device; A positioning request sent by an access mobility management entity and / or a positioning management function entity is received.

4. The method according to claim 1 or 2, characterized in that: The method further comprises: Send the unique identifier of the terminal to the network side device through the PUSCH of MsgA or Msg3 in the random access process, and / or send the unique identifier of the terminal to the positioning management function entity through at least one of a non-access layer message and a positioning protocol message; Alternatively, after the terminal completes the random access process and switches to the connected state, the unique identifier of the terminal is sent to the network side device via the PUSCH, and / or the unique identifier of the terminal is sent to the positioning management function entity via a positioning protocol message.

5. A positioning method, characterized in that: The method comprises: Sending system information to the terminal to indicate random access resources for positioning purposes; receiving a random access preamble for positioning sent by the terminal through the time domain resources and frequency domain resources of a random access channel for positioning, wherein the time domain resources, frequency domain resources and the random access preamble for positioning of the random access channel for positioning constitute random access resources for positioning; the random access resources for positioning and the random access resources for random access include at least one of different time domain resources, frequency domain resources and preambles; In response to receiving the random access preamble code for positioning, receiving a transmit power value of the random access preamble code for positioning sent by the terminal through a PUSCH of MsgA or Msg3 in a random access process; Based on the transmission power value and the received signal strength value of the random access preamble code for positioning purposes, the distance between the network side device and the terminal is determined; the network side device is a network side device in a service cell of the terminal.

6. The method according to claim 5, characterized in that In the random access resources corresponding to each synchronization signal block, the frequency domain resources with the lowest frequency are allocated for positioning, and the frequency domain resources of the remaining frequencies are allocated for random access; Alternatively, in the random access resources corresponding to each synchronization signal block, the earliest time domain resources are allocated for positioning, and the remaining time domain resources are allocated for random access; Alternatively, in the random access resources corresponding to each synchronization signal block, the preamble code with the smallest number is allocated for positioning purposes, and the preamble codes with remaining numbers are allocated for random access purposes.

7. The method according to claim 5 or 6, characterized in that: The method further comprises: Receiving a unique identifier sent by the terminal through a PUSCH of MsgA or Msg3 in a random access process; Alternatively, when the terminal is in a connected state, the unique identifier sent by the terminal is received through the PUSCH.

8. A positioning device, characterized in that: The device comprises: A determination module is configured to determine, based on system information sent by a network side device, random access resources for positioning purposes, wherein the random access resources for positioning purposes include time domain resources, frequency domain resources, and a random access preamble for positioning purposes of a random access channel for positioning purposes; the random access resources for positioning purposes and the random access resources for random access purposes include at least one of the time domain resources, the frequency domain resources, and the preamble different from each other; A sending module, configured to send the positioning purpose random access preamble code to a network side device through the time domain resources and frequency domain resources of the positioning purpose random access channel; the network side device is a network side device in a serving cell of the terminal; The transmission power value of the random access preamble code for positioning purposes is sent to the network side device through the PUSCH of MsgA or Msg3 in the random access process.

9. A positioning device, characterized in that: The device comprises: A sending module, configured to send system information to the terminal to indicate a random access resource for positioning purposes; A receiving module is configured to receive a random access preamble for positioning sent by the terminal through the time domain resources and frequency domain resources of the random access channel for positioning, wherein the time domain resources, frequency domain resources and the random access preamble for positioning constitute the random access resources for positioning; the random access resources for positioning and the random access resources for random access include at least one of the time domain resources, frequency domain resources and preamble different from each other; a positioning module, configured to perform positioning measurement on the terminal in response to receiving the random access preamble for positioning, and receive a transmission power value of the random access preamble for positioning sent by the terminal through a PUSCH of MsgA or Msg3 in a random access process; Based on the transmission power value and the received signal strength value of the random access preamble code for positioning purposes, the distance between the network side device and the terminal is determined; the network side device is a network side device in a service cell of the terminal.

10. A terminal, characterized in that: The terminal comprises: processor; a memory for storing processor-executable instructions; The processor is configured to load and execute the executable instructions to implement the positioning method according to any one of claims 1 to 4.

11. A network side device, characterized in that: The network side device includes: processor; a memory for storing processor-executable instructions; The processor is configured to load and execute the executable instructions to implement the positioning method according to any one of claims 5 to 7.

12. A computer-readable storage medium, characterized in that: When the instructions in the computer-readable storage medium are executed by a processor, the positioning method described in any one of claims 1 to 4 can be executed, or the positioning method described in any one of claims 5 to 7 can be executed.

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