Positioning method, apparatus and terminal

Abstract

The application discloses a positioning method, device and terminal, and belongs to the technical field of communication. The positioning method of the application comprises the following steps: a terminal sends an uplink reference signal in an idle state or an inactivated state, wherein the uplink reference signal comprises an uplink positioning reference signal and / or an uplink sensing signal; the terminal receives target feedback information sent by a network side device based on a first time window and / or listens to a first physical downlink control channel (PDCCH), wherein the target feedback information is carried in the first PDCCH, and / or the target feedback information is carried in a physical downlink shared channel (PDSCH) scheduled by the first PDCCH.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a positioning method, device, and terminal. Background Technology

[0002] With the development of communication technology, various applications based on location functions have emerged, such as map applications, food delivery applications, and shopping applications, all of which need to obtain the terminal's location information.

[0003] However, considering that the positioning function is a major energy consumer in the terminal (User Equipment, UE, also known as terminal device or user equipment), how to solve the problem of high terminal energy consumption during the positioning process has become an urgent problem to be solved in this field. Summary of the Invention

[0004] This application provides a positioning method, device, and terminal that can solve the problem of high terminal power consumption during the positioning process.

[0005] Firstly, a terminal is provided to transmit an uplink reference signal in an idle or inactive state, the uplink reference signal including an uplink positioning reference signal and / or an uplink sensing signal; the terminal receives target feedback information sent by the network-side device and / or listens to a first physical downlink control channel (PDCCH) based on a first time window, the target feedback information being carried in the first PDCCH, and / or the target feedback information being carried in a physical downlink shared channel (PDSCH) scheduled by the first PDCCH.

[0006] Secondly, a positioning method is provided, comprising: when a terminal completes cell reselection or cell handover while transmitting the uplink reference signal in an idle or inactive state, the terminal performs a first action, the first action being related to the transmission, release, or update of the uplink reference signal, the uplink reference signal including an uplink positioning reference signal and / or an uplink sensing signal.

[0007] Thirdly, a positioning device is provided for use in a terminal. The device includes: a transmission module for transmitting an uplink reference signal in an idle state or an inactive state, the uplink reference signal including an uplink positioning reference signal and / or an uplink sensing signal; and a first execution module for receiving target feedback information transmitted by the network-side device based on a first time window and / or listening to a first physical downlink control channel (PDCCH), the target feedback information being carried in the first PDCCH, and / or the target feedback information being carried in a physical downlink shared channel (PDSCH) scheduled by the first PDCCH.

[0008] Fourthly, a positioning device is provided for use in a terminal. The device includes a second execution module, configured to perform a first action when cell reselection or cell handover is completed during the transmission of the uplink reference signal in an idle or inactive state. The first action is related to the transmission, release, or update of the uplink reference signal, and the uplink reference signal includes an uplink positioning reference signal and / or an uplink sensing signal.

[0009] Fifthly, a terminal is provided, the terminal including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method as described in the first or second aspect.

[0010] In a sixth aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method described in the first or second aspect.

[0011] In a seventh aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method as described in the first or second aspect.

[0012] Eighthly, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being used to run programs or instructions to implement the steps of the method as described in the first or second aspect.

[0013] A ninth aspect provides a computer program product stored in a non-transient storage medium, the program product being executed by at least one processor to perform the steps of the method as described in the first or second aspect.

[0014] In this embodiment of the application, the terminal transmits uplink reference signals in idle or inactive state, thereby effectively reducing the high power consumption of the terminal caused by terminal positioning.

[0015] Furthermore, by receiving target feedback information sent by the network side based on a first time window and / or listening to a first PDCCH related to the target feedback information, the terminal can maintain the validity of the TA or the validity of the positioning reference signal configuration during the positioning process, thereby ensuring positioning / sensing performance. And / or, by performing first actions related to the transmission, release, and update of the uplink reference signal, the terminal can ensure the validity of the TA or the validity of the uplink reference signal configuration after completing cell reselection or cell handover. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a wireless communication system provided in an exemplary embodiment of this application.

[0017] Figure 2 This is a flowchart illustrating a positioning method provided in an exemplary embodiment of this application.

[0018] Figure 3 This is a flowchart illustrating a positioning method provided in another exemplary embodiment of this application.

[0019] Figure 4 This is a flowchart illustrating a positioning method provided in another exemplary embodiment of this application.

[0020] Figure 5 This is a schematic diagram of the structure of a positioning device provided in an exemplary embodiment of this application.

[0021] Figure 6 This is a schematic diagram of the structure of a positioning device provided in another exemplary embodiment of this application.

[0022] Figure 7 This is a schematic diagram of the structure of a terminal provided in an exemplary embodiment of this application. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0024] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0025] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used not only in the systems and radio technologies mentioned above, but also in other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and NR terminology is used in most of the following description; however, these technologies can also be applied to applications beyond NR systems, such as 6th Generation (6G) communication systems.

[0026] Figure 1This diagram illustrates the structure of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), etc. Wearable devices include smartwatches, wristbands, headphones, glasses, etc. It should be noted that this application does not limit the specific type of terminal 11. Network-side equipment 12 can be a base station or core network equipment. The base station can be referred to as a Node B, Evolved Node B, Access Point, Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), B Node, Evolved B Node (eNB), Home B Node, Home Evolved B Node, WLAN Access Point, WiFi Node, Transmitting Receiving Point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this embodiment, only a base station in an NR system is used as an example, but the specific type of base station is not limited. Core network equipment can be a Location Management Function (LMF) or other nodes.

[0027] The technical solutions provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0028] like Figure 2 The diagram shown is a flowchart of a positioning method 200 provided in an exemplary embodiment of this application. This method 200 can be executed by, but is not limited to, a terminal, specifically by hardware and / or software installed in the terminal. In this embodiment, the method 200 may include at least the following steps.

[0029] S210, the terminal sends an uplink reference signal in idle or inactive state.

[0030] The uplink reference signal (RS) includes an uplink positioning reference signal and / or an uplink sensing signal. The uplink positioning reference signal is used for positioning measurements and may include, but is not limited to, a sounding reference signal (SRS), a random access signal, an uplink demodulation reference signal, and other reference signals used for uplink positioning. The SRS may include an SRS for positioning and an SRS for multiple-input multiple-output (MIMO). The uplink sensing signal is used by the terminal to sense / detect the channel, sense / detect its surrounding environment, sense / detect the area environment it is in, or to implement other sensing / detection functions.

[0031] It is understood that the uplink reference signal mentioned in this application can be used not only for positioning and sensing, but also for other functions such as channel measurement, estimation, and acquisition of channel state information (CSI) by network-side equipment.

[0032] The terminal is in an idle or inactive state. That is, this application utilizes the low power consumption characteristic of the idle or inactive state to realize the terminal positioning function, thereby effectively reducing the problem of high terminal power consumption that may exist in the positioning process, while ensuring positioning performance.

[0033] S220, the terminal receives target feedback information sent by the network-side device and / or listens to the first PDCCH based on a first time window.

[0034] The target feedback information is carried in the first physical downlink control channel (PDCCH), and / or, the target feedback information is carried in the physical downlink shared channel (PDSCH) scheduled by the first PDCCH. The target feedback information corresponds to the uplink reference signal; for example, if the uplink reference signal is an uplink positioning reference signal, the target feedback information can be positioning feedback information, etc.

[0035] The first time window can also be understood as a timer. In this application, monitoring target feedback information (such as uplink reference signal configuration update information, timing advance (TA) update information, etc.) based on the first time window can better maintain the effectiveness and reliability of TA and / or uplink reference signal configuration. It can be understood that TA refers to the system frame for uplink data transmission by the terminal being a certain time ahead of the corresponding downlink frame. It can be calculated by the base station based on the random access preamble sent by the terminal and notified to the terminal via a TA command.

[0036] In this embodiment, the opening or closing of the first time window can be determined based on demand (on-demand), or it can be implemented by protocol specifications, network configuration, or higher-level configuration, etc., and no restrictions are imposed here.

[0037] Based on this, when the terminal receives the target feedback information based on the first time window, the target feedback information may be carried in the first PDCCH, and / or the target feedback information may be carried in the Physical downlink shared channel (PDSCH), wherein the PDSCH is scheduled through the first PDCCH.

[0038] It should be noted that the target configuration associated with the first PDCCH and used to receive target feedback information may include at least one of the following: the configuration of the first time window, such as the start point, end point, length, period, etc. of the time window; the search space (SS) configuration associated with the first PDCCH; the control resource set (coreset) configuration associated with the first PDCCH; and the Radio Network Temporary Identifier (RNTI) configuration associated with the first PDCCH.

[0039] Based on this, in one implementation, the target configuration can be a dedicated configuration for receiving the target feedback information, or a shared configuration for receiving the target feedback information and / or other information besides the target feedback information. That is, in addition to the dedicated configuration, the target configuration can be multiplexing or sharing the paging frame, paging occasion (PO), SS configuration, control resource set (coreset) configuration, etc. of the paging PDCCH. Optionally, the target configuration can also be a terminal-specific configuration or a common configuration (such as a cell common configuration or a region common configuration).

[0040] It is understandable that, taking the target configuration of multiplexing or sharing the paging PDCCH RNTI configuration as an example, an RNTI (e.g., C-RNTI) is allocated to an idle or inactive terminal in the Radio Resource Control (RRC) release message. During PO (Positioning on PO), the terminal can simultaneously listen to this RNTI and the P-RNTI. That is, when the terminal wakes up once, it can simultaneously listen to the paging PDCCH and the first PDCCH, thus achieving a power-saving effect. Another example is sharing the configuration with the paging message, i.e., carrying the target configuration in the paging PDCCH and / or PDSCH.

[0041] Furthermore, the target configuration can be implemented by protocol agreement, higher-layer configuration, or network configuration. It can be sent to the terminal along with the uplink reference signal configuration, or included in the uplink reference signal configuration, such as in an RRCrelease message. Alternatively, it can be sent to the terminal via broadcast (e.g., included in System Information Block (SIB) 1 or other SIBs).

[0042] Furthermore, before sending the uplink reference signal, the terminal may listen to the second PDCCH at specific periodic listening times to schedule updated uplink reference signal configuration and / or TA configuration, so that the terminal can send the uplink reference signal based on the updated uplink reference signal configuration and / or TA configuration.

[0043] In this embodiment, similar to the first PDCCH, the target configuration associated with the second PDCCH may include SS configuration, coreset configuration, RNTI configuration, etc. These target configurations can be UE-specific configurations or common configurations (such as cell-specific). Optionally, these configurations may be dedicated configurations for updated uplink reference signal configurations and / or TA configurations, or configurations shared with other information.

[0044] Optionally, the configuration information such as the system frame, subframe, time slot, symbol, SS configuration, coreset configuration, and RNTI configuration of the second PDCCH can be obtained through at least one of the following methods: network indication and protocol agreement.

[0045] It should be noted that when the target configuration includes an RNTI configuration, this RNTI configuration is different from the P-RNTI. Furthermore, the RNTI associated with the second PDCCH and / or other configurations not multiplexed with the paging-PDCCH can be dedicated to listening to the PDCCH.

[0046] In one implementation, the aforementioned target configuration can be achieved through network indication, protocol agreement, higher-layer configuration, or other means. For example, when implemented through the network indication, the target configuration can be sent to the terminal together with the configuration of the uplink reference signal, or it can be included in the configuration of the uplink reference signal.

[0047] In the implementation of the aforementioned positioning method, in order to avoid the problem of high power consumption caused by the terminal frequently initiating small data transmission (SDT) or entering the connected state due to frequent cell reselection or cell handover when there is dense cell deployment and / or the terminal has a certain degree of mobility, this application expands the effective area of ​​the uplink reference signal to multiple cells, thereby reducing the frequent SDT initiation or connected state entry behavior of the terminal.

[0048] For example, before performing the aforementioned step S210, the terminal may receive cell list information sent by the network-side device. This cell list information may include information about at least one first cell, used to assist the terminal in transmitting uplink reference signals when moving within the at least one first cell, or to indicate that the uplink reference signal is configured to be valid in each of the first cells included in the cell list, thereby expanding the effective area of ​​the uplink reference signal.

[0049] In one implementation, the cell list information includes at least one of the following (21)-(27).

[0050] (21) Identification-related information for each of the first cells, used to identify each of the first cells. Optionally, the identification-related information may include, but is not limited to, Physical Cell Identifier (PCI), NR Cell Global Identifier (NCGI), Absolute Radio Frequency Channel Number (ARFCN), or other cell identifiers that can be used for cell identification.

[0051] (22) Relevant time information for each of the first cells. Optionally, the relevant time information includes, but is not limited to, absolute time of System frame number (SFN)0, SFN0 offset, expected-Reference Signal Timing Difference (expected-RSTD), and expected-RSTD uncertainty, etc.

[0052] Based on this, in one implementation, the cell list information may further include reference cell indication information, which is used to indicate that the terminal uses relevant time information such as SFN0-offset, expected-RSTD, and expected-RSTD uncertain.

[0053] In this embodiment, the reference cell may be the cell that sent the RRC release message or other designated cells.

[0054] Optionally, the cell list information may also include cells that sent RRC release messages.

[0055] (23) Configuration information of the target reference signal for each of the first cells. The target reference signal of the first cell is used by the terminal to calculate the RSTD or reference signal received power (RSRP) difference, etc. Optionally, the configuration of the target reference signal may include, but is not limited to, the time-domain location information of the RS (such as RS period, period offset, number of symbols, etc.), the frequency-domain location information of the RS (such as subcarrier spacing (SCS), bandwidth, starting PRB position, center frequency, comb structure, etc.), the RS time-frequency pattern, the RS sequence identifier, etc.

[0056] (24) RSTD threshold values ​​between each of the first cells. Optionally, the RSTD threshold value can be the RSTD threshold of adjacent first cells. In this case, one way to indicate whether the first cells are adjacent is: when the network side indicates the identifier (ID) of a cell, it can simultaneously indicate the identifier information of at least one neighboring cell adjacent to that cell.

[0057] (25) RSRP difference threshold value between each of the first cells. Optionally, similar to the RSTD, the RSRP difference threshold value can also be the RSRP difference threshold value between adjacent first cells. In this case, one way to indicate whether the first cells are adjacent is: when the network side indicates the ID of a cell, it can simultaneously indicate the identification information of at least one neighboring cell adjacent to that cell.

[0058] (26) TA-related parameters for each of the first cells. The TA-related parameters may include, but are not limited to, the cell timing advance offset (N). TA offset ), TA validity parameter values, etc.

[0059] Optionally, the TA validity parameters may include RSRP change threshold, parameters of the time alignment timer, RS configuration information used to calculate RSRP, etc.

[0060] (27) Information about the second cell, wherein the second cell is one of the at least one first cell that allows a terminal camped in the second cell to send an uplink reference signal without receiving the sixth information, wherein the sixth information is the TA command and / or TA validity parameters of the second cell.

[0061] In other words, the second cell does not allow the terminal cell to reselect to it or the terminal's current cell to hand over to it before sending an uplink reference signal (or an uplink signal other than the Physical Random Access Channel (PRACH)) without receiving a TA command and / or TA validity parameters from the second cell. Alternatively, the second cell does not allow the terminal cell to determine the validity of the previous TA and send an uplink reference signal (or an uplink signal other than PRACH) after reselecting to it or the terminal's current cell to hand over to it. Alternatively, the second cell does not allow the terminal cell to receive a TA command and / or TA validity parameters before sending an uplink reference signal (or an uplink signal other than PRACH) after reselecting to it or the terminal's current cell to hand over to it.

[0062] In one implementation, the information of the second cell may be included in the cell ID group information of the second cell, or carried in the cell information list associated with each first cell and indicated by 1 bit.

[0063] In this embodiment, the terminal transmits uplink reference signals in idle or inactive state, thereby effectively reducing the high power consumption caused by terminal positioning. Simultaneously, the terminal receives target feedback information sent by the network side based on a first time window and / or listens to a first PDCCH related to the target feedback information, thereby maintaining the validity of the TA or the uplink reference signal configuration during the positioning process, thus ensuring positioning / sensing performance.

[0064] like Figure 3 The diagram shown is a flowchart of a positioning method 300 provided in an exemplary embodiment of this application. This method 300 can be executed by a terminal, but is not limited to that executed by a terminal; specifically, it can be executed by hardware and / or software installed in the terminal. In this embodiment, the method 300 may include at least the following steps.

[0065] S310, the terminal sends an uplink reference signal in idle or inactive state.

[0066] The uplink reference signal includes an uplink positioning reference signal and / or an uplink sensing signal.

[0067] It is understood that the implementation process of S310 can refer to the relevant description in method embodiment 200. To avoid repetition, it will not be repeated here.

[0068] S320, the terminal opens the first time window during N uplink reference signal instances or after N uplink reference signal instances.

[0069] The uplink reference signal instance is used to transmit the uplink reference signal, where N is an integer greater than or equal to 1. Optionally, the uplink reference signal instance can be understood as the uplink reference signal transmission occasion, burst, period, transmission resource, etc.

[0070] For example, for periodic or semi-persistent uplink reference signals, one instance of the uplink reference signal can represent the uplink reference signal transmitted within one period.

[0071] For example, assuming the uplink reference signal is SRS, then the uplink reference signal instance can be represented as an SRS time instance, an SRS time occasion, an SRS period, etc. An SRS time instance can contain at least one SRS resource or at least one SRS resource set.

[0072] Furthermore, the aforementioned "N" can be determined by protocol agreement, network instruction, or terminal selection. For example, the number N of uplink reference signal instances can be sent to the terminal together with the uplink reference signal configuration, or it can be included in the uplink reference signal configuration; there is no limitation here.

[0073] Based on this, as one implementation, assuming that the number of instances of the uplink reference signal indicated by the network is N, then the terminal opens the first time window once during or after every N uplink reference signal instances.

[0074] Of course, in addition to the description of the first time window in the aforementioned method embodiment 200, as a possible implementation, the configuration of the first time window can be implemented by protocol agreement, network configuration, or higher-level configuration, etc. For example, the terminal can obtain the configuration of the first time window. Optionally, in this embodiment, the configuration of the first time window may include at least one of the following (31)-(35).

[0075] (31) The starting point of the time window.

[0076] Optionally, the starting point of the time window includes any one of the following (311)-(318).

[0077] (311) First position, the first position is located in the first time unit after the time unit corresponding to the N uplink reference signal instances.

[0078] Here, it is assumed that the N uplink reference signal instances correspond to M time units. Then, the first position is the first time unit after the M time units, or the first time unit after the last time unit among the M time units. Alternatively, it is the first time unit after the last instance among the N uplink reference signal instances (or the time unit corresponding to the last instance; or the last time unit containing the last instance). Optionally, the first time unit can be an uplink time unit, a downlink time unit, or a flexible time unit.

[0079] For example, the first position is located in the first slot or symbol after the slot corresponding to the last instance in the N uplink positioning reference instances (or, after the last slot of the last instance); or, the first position is located in the first slot or symbol after the symbol corresponding to the last instance in the N uplink positioning reference instances (or, after the last slot of the last instance).

[0080] It is understood that the time unit mentioned in the context of this application can be millisecond (ms), slot, sub-slot, frame, sub-frame, symbol, etc., and there are no restrictions here.

[0081] (312) Second position, the second position is located in the first non-uplink time unit after the time unit corresponding to the N uplink reference signal instances.

[0082] Similar to the first position, the second position can also be the first non-uplink time unit after the M time units, or the first non-uplink time unit after the last time unit among the M time units. Alternatively, it can be the first non-uplink time unit after the last instance among the N uplink reference signal instances (or the time unit corresponding to the last instance; or the last time unit containing the last instance).

[0083] Optionally, the first non-uplink time unit can be a downlink time unit or a flexible time unit.

[0084] (313) The third position is located in the first downlink time unit after the time unit corresponding to the N uplink reference signal instances.

[0085] Similar to the first position, the third position can also be the first downlink time unit after the M time units, or the first downlink time unit after the last time unit among the M time units. Alternatively, it can be the first downlink time unit after the last instance among the N uplink reference signal instances (or the time unit corresponding to the last instance; or the last time unit containing the last instance).

[0086] (314) Fourth position, which is the first time unit corresponding to a specific Coreset.

[0087] The specific Coreset is used to listen to the first PDCCH corresponding to the target feedback information. Based on this, the specific Coreset is the first Coreset after the N uplink reference signal instances and is associated with the first PDCCH; or, the specific Coreset is the first Coreset at a first specified distance after the N uplink reference signal instances and is associated with the first PDCCH. Optionally, the first specified distance is determined by protocol agreement, higher-layer configuration, or terminal selection.

[0088] (315) The fifth position is a time unit located after the time unit corresponding to the N uplink reference signal instances and having a second specified distance between it and the time unit corresponding to the N uplink reference signal instances (or the last instance among the N uplink reference signal instances).

[0089] The second specified distance can be determined by protocol agreement, higher-level configuration, or terminal selection. For example, the second specified distance can be one time unit, i.e., one symbol, one time slot, or one subframe.

[0090] It should be noted that when the second specified distance includes a slot or symbol, its corresponding SCS (which is consistent with the SCS corresponding to the uplink reference signal, or the SCS corresponding to the initial bandwidth part (BWP), or the SCS corresponding to the specific search space, or is indicated by the network or agreed upon by the protocol, and is not limited here)

[0091] (316) The sixth position is determined based on the first offset value and the start time, end time, or any specified time between the start time and the end time of the first uplink reference signal instance.

[0092] The first uplink reference signal instance belongs to the N uplink reference signal instances. Furthermore, the first offset value and / or the specified time can be obtained by protocol agreement, higher-layer configuration, or network-side configuration.

[0093] (317) The seventh position is the transmission time of a specific PUSCH resource, which is associated with the N uplink reference signal instances.

[0094] The association of the specific PUSCH resource with the N uplink reference signal instances can be understood as follows: the specific PUSCH resource is the resource corresponding to or carried by the terminal when sending the uplink reference signal; or, the specific PUSCH resource is the payload corresponding to or carried by the terminal when sending the uplink reference signal.

[0095] It is understood that the payload may include an RRC resume request message.

[0096] (318) The eighth position is the time of network indication, protocol agreement or high-level configuration.

[0097] (32) The end of the time window.

[0098] The endpoint of the time window includes at least one of the following (321)-(322).

[0099] (321) Ninth position, the ninth position is the time of receiving the RRC release message.

[0100] (322) The tenth position is determined based on the second offset value and the start time, end time, or any specified time between the start time and the end time of the second uplink reference signal instance, which belongs to the N uplink reference signal instances.

[0101] The second offset value and / or the specified time can be implemented by protocol agreement, higher-level configuration, or network configuration.

[0102] (33) The length of the time window.

[0103] The unit of the length of the time window can be milliseconds (ms), slots, symbols, etc., and there is no limitation here.

[0104] In addition, when the first time window includes at least one slot or symbol, the SCS corresponding to the slot or symbol is consistent with the SCS corresponding to the uplink reference signal; or, the subcarrier spacing corresponding to the slot or symbol is consistent with the SCS corresponding to the Initial BWP; or, the SCS corresponding to the slot or symbol is consistent with the SCS corresponding to a specific search space; or, the SCS corresponding to the slot or symbol can be determined by protocol agreement, higher layer configuration, or network side configuration.

[0105] It should be noted that the specific search space can be a public search space or a UE-specific search space used to search the first PDCCH carrying the target feedback information, or the specific search space used to search the first PDCCH that schedules the target feedback information. Optionally, the specific search space can be a dedicated search space corresponding to the target feedback information, or a search space shared with other information.

[0106] The specific search space and the specific Coreset can be implemented by protocol agreement, high-level configuration, or network-side configuration, and there are no restrictions here.

[0107] (34) The period of the time window.

[0108] (35) Period offset of the time window.

[0109] The period of the time window described in (34) and / or the period offset of the time window described in (35) can be implemented by network indication, protocol agreement or high-level policy configuration, and there are no restrictions here.

[0110] Furthermore, based on the foregoing description of the configuration of the first time window, before the terminal receives the target feedback information sent by the network-side device and / or listens to the first physical downlink control channel (PDCCH) based on the first time window, it may determine whether to open the first time window according to at least one of the following (41)-(43).

[0111] (41) The terminal instructs the network-side device to enable or disable the first time window, so that the network-side device can determine whether to send the target feedback information to the terminal based on the terminal's instruction. For example, if the instruction is enabled, the network-side device sends the target feedback information; if the instruction is disabled, the network-side device does not send the target feedback information.

[0112] In one implementation, the step of the terminal instructing the network-side device to enable or disable the first time window may include at least one of the following (411)-(414).

[0113] (411) The terminal instructs the network-side device to open or not open the first time window through the sequence information of the uplink reference signal.

[0114] Different sequences of uplink reference signals can be distinguished by cyclic shift or sequence ID.

[0115] Based on this, assuming that sequence information A corresponds to opening the first time window and sequence information B corresponds to not opening the first time window, then if the sequence information of the uplink reference signal is A, the network-side device can determine that the terminal opens the first time window; if the sequence information of the uplink reference signal is B, the network-side device can determine that the terminal does not open the first time window.

[0116] (412) The terminal instructs the network-side device to enable or disable the first time window by mapping the uplink reference signal.

[0117] Among them, different uplink reference signal mapping methods can be distinguished by different time-frequency domain positions, different comb offsets, or different time-frequency domain resource positions when mapping uplink reference signal time-frequency resources.

[0118] Based on this, assuming that mapping method A corresponds to opening the first time window and mapping method B corresponds to not opening the first time window, then if the mapping method of the uplink reference signal is A, the network-side device can determine that the terminal opens the first time window, and if the mapping method of the uplink reference signal is B, the network-side device can determine that the terminal does not open the first time window.

[0119] (413) The terminal instructs the network-side device to enable or disable the first time window through the specific PUSCH resource corresponding to the uplink reference signal.

[0120] That is, the terminal can instruct the terminal to open or not open the first time window by carrying or corresponding payload in the uplink reference signal.

[0121] (414) The terminal instructs the network-side device to enable or disable the first time window via Small Data Transmission (SDT) method.

[0122] (42) The terminal receives a first indication information sent by the network-side device, the first indication information being used to instruct the terminal to open or not open the first time window.

[0123] In this embodiment, the first indication information is transmitted through paging messages, paging early indication (PEI), system messages, or specific downlink signaling.

[0124] Wherein, when the first indication information is transmitted via a paging message, the first indication information may be contained in or carried in the paging PDCCH or Paging PDSCH. It is represented by the bits of the short message in the Paging PDCCH, or by the reserved bits in the Paging PDCCH.

[0125] When the first indication information is transmitted via system messages, the system messages may be, but are not limited to, SIB1, SIBx, or a positioning system information block (posSIB).

[0126] The instruction is given via specific downlink signaling to a specific PDCCH before the first time window. Optionally, the distance between the PDCCH and the start of the first time window is not less than a preset threshold.

[0127] (43) The terminal determines whether to enable or disable the first time window based on the target Discontinuous Reception (DRX) configuration, wherein the target DRX configuration is an inactive or idle DRX configuration.

[0128] Optionally, the step of the terminal determining whether to open or not open the first time window according to the target DRX configuration may include at least one of the following (431)-(433).

[0129] (431) The terminal opens the first time window when it falls within the duration (on duration, active time, or PO) of the target DRX configuration. Alternatively, if the first time window overlaps with the duration of the target DRX configuration, the terminal only opens the overlapping portion of the first time window.

[0130] (432) If the time distance between the first time window and the target PO does not exceed a first threshold, the terminal opens the first time window, and the target PO is the PO that is closest to the first time window among multiple POs. Optionally, the distance to the PO is the distance between the last time unit or the first time unit of the PO.

[0131] (433) If the difference between the first time window and the transmission time when the terminal last transmitted (e.g., sent or received) a physical signal and / or physical channel does not exceed the second threshold, the terminal opens the first time window.

[0132] The physical signal and / or physical channel includes, but is not limited to, at least one of SSB, CSI-RS, PRS, paging, SIB1, SIBx, PRACH, Msg1 / 2 / 3 / 4, MsgA / B, PDCCH, and PDSCH.

[0133] It is understood that the first threshold, the second threshold, and the third, fourth, and fifth thresholds mentioned in (432) and (433) can all be implemented by agreement or high-level configuration, and no restrictions are imposed here.

[0134] S330, the terminal receives target feedback information sent by the network-side device and / or listens to the first physical downlink control channel (PDCCH) based on a first time window.

[0135] The target feedback information is carried in the first PDCCH, and / or the target feedback information is carried in the physical downlink shared channel (PDSCH) scheduled by the first PDCCH.

[0136] It is understood that, in addition to referring to the relevant description in method embodiment 200, as a possible implementation method, the target feedback information of S330 can be a Medium Access Control (MAC) message or an RRC message.

[0137] Optionally, the target feedback information may include at least one of the following (51)-(57).

[0138] (51) First information, used to indicate whether or not the configuration update of the uplink reference signal exists.

[0139] (52) Second information, used to indicate whether or not a TA update exists.

[0140] (53) Third information, used to indicate whether the network-side device has successfully received or measured the uplink reference signal.

[0141] (54) Fourth information, used to indicate whether the terminal enters or does not enter the connected state.

[0142] (55) The fifth piece of information is used to indicate the TA update value or the amount of TA change.

[0143] (56) TA validity parameters or TA validity parameter update information.

[0144] The TA validity parameters may include a time alignment timer or TA validity timer, RSRP change threshold, reference signal identifier and / or configuration corresponding to the measured RSRP, etc. In addition, the "existence or non-existence" and "entry or non-entry" mentioned in (51)-(52) above and in the context of this application can also be expressed as existence or non-entry, etc.

[0145] (57) The configuration of the uplink reference signal or the updated configuration of the uplink reference signal.

[0146] The configuration or update configuration of the uplink reference signal may include spatial relation parameters, power control parameters, SRS time domain configuration, SRS frequency domain configuration, and the configuration of the first time window.

[0147] Of course, in one implementation, when the terminal is listening to the first PDCCH based on the first time window, if there is an overlap between the first time window and the PO, then during the overlapping time, the terminal performs any one of the following (61)-(62).

[0148] (61) Only listen to the paging PDCCH.

[0149] Optionally, if the terminal only listens to the paging PDCCH during the overlapping time, then the paging PDCCH and / or the first PDSCH contains the target feedback information. Furthermore, it is understood that while the terminal only listens to the paging PDCCH during the overlapping time, it may also listen to the first PDCCH, etc., during non-overlapping times; this is not limited.

[0150] (62) Listen to the paging PDCCH and the first PDCCH.

[0151] Optionally, if the terminal listens to the paging PDCCH and the first PDCCH during the overlapping time period, then if the paging PDCCH and / or paging PDSCH contains the target feedback information, the terminal stops listening to the PDCCH corresponding to the feedback information during the overlapping time period.

[0152] Optionally, the terminal may not listen to the first PDCCH within a time window that does not overlap with the PO.

[0153] Alternatively, in another implementation, if the terminal does not receive the target feedback information sent by the network-side device within the first time window, it may perform at least one of the following (71)-(74).

[0154] (71) Send the uplink reference signal to the network-side device again to re-initiate the positioning process and realize terminal positioning.

[0155] (72) Initiate an SDT procedure, which is used to request an update of the uplink reference signal configuration and / or TA validity parameters to ensure the validity of the uplink reference signal configuration and / or TA validity parameters.

[0156] (73) Enter the connected state by initiating a random access procedure and re-establish a connection with the network device.

[0157] (74) Ignore the reception result, where the reception result is that the terminal did not receive the target feedback information sent by the network-side device within the first time window. For example, after ignoring the reception result, the terminal assumes that the current uplink reference signal configuration and / or TA validity conditions are available, thereby determining the reliability of the positioning process. Continue to send uplink reference signals based on the previous configuration and TA.

[0158] like Figure 4 The diagram shown is a flowchart illustrating a positioning method 400 provided in an exemplary embodiment of this application. This method 400 can be executed by, but is not limited to, a terminal, specifically by hardware and / or software installed in the terminal. In this embodiment, the method 400 may include at least the following steps.

[0159] S410, if the terminal completes cell reselection or cell handover while transmitting the uplink reference signal in idle or inactive state, the terminal performs the first action.

[0160] The uplink reference signal includes an uplink positioning reference signal and / or an uplink sensing signal. For relevant descriptions of the uplink reference signal, please refer to the descriptions in method embodiments 200 and / or 300. To avoid repetition, no restrictions are imposed here.

[0161] Additionally, it is understandable that, considering the uplink reference signal can be transmitted periodically, and in some scenarios (such as indoor scenarios) where cell deployment is dense and the terminal has a certain degree of mobility, frequent cell reselection or cell handover may occur. Therefore, as an implementation method, if the terminal completes cell reselection or cell handover during the transmission of one or more consecutive uplink reference signals, the terminal may perform a first action to perform relevant processing on the transmission, release, or update of the uplink reference signal, so as to ensure the effectiveness and reliability of TA configuration and / or uplink reference signal (such as SRS) configuration during the positioning process.

[0162] Of course, the first action relates to the transmission, release, or update of the uplink reference signal. As one possible implementation, the first action may include at least one of the following (81)-(86).

[0163] (81) Initiate an SDT procedure, which is used to request an update of the uplink reference signal configuration and / or TA validity parameters.

[0164] (82) Release the reference signal resource corresponding to the uplink reference signal.

[0165] (83) Enter the connected state by initiating a random access procedure, complete uplink positioning in the connected state, and / or update at least one of the uplink reference signal configuration and TA validity parameters, and / or determine the terminal behavior according to network instructions.

[0166] (84) Send a first message (or preamble, PRACH) based on the 4-step random access procedure. The first message is used to request the network-side device to update the TA validity parameter, or the Msg1 is used by the terminal to request the network side to update the TA in the second message (Msg2).

[0167] Optionally, the PRACH corresponding to Msg1 can be a dedicated PRACH, allowing the terminal to update the TA in the inactive state without entering the connected state. Additionally, the dedicated PRACH corresponds to a dedicated preamble and / or a dedicated PRACH time-frequency position.

[0168] It should be noted that the random access procedure associated with Msg1 sent by the terminal is a non-contention-based random access procedure.

[0169] Furthermore, after the terminal sends Msg1 based on the 4-step random access procedure, if it receives Msg2 sent by the network-side device, it can perform a TA update based on the TA update information or TA command carried in the second message.

[0170] The TA update information may include at least one of the following (841)-(842).

[0171] (841) TA change value or updated TA value.

[0172] (842) TA validity parameter or TA validity parameter update.

[0173] It is understood that the terminal does not expect Msg2 to include scheduling information for scheduling the third message (Msg3), or the terminal does not expect Msg2 to contain any messages other than the TA update message.

[0174] Of course, if the terminal is in an idle or inactive state when it receives the second message (Msg2), then the terminal may perform at least one of the following (843)-(846).

[0175] (843) Ignore the scheduling information carried in the second message, which is used to schedule the third message.

[0176] (844) Ignore all other information in the second message except for the TA update information, and remain in an idle or inactive state.

[0177] (845) Ignore the sending process of the third message.

[0178] (846) Ignore the receiving process of the fourth message, which corresponds to the third message and is a message fed back to the terminal by the network-side device based on the third message.

[0179] (85) The uplink reference signal is sent based on the original cell's TA.

[0180] The phrase "the terminal sends the uplink reference signal based on the original cell's TA" can be understood as: the terminal sends the uplink reference signal while maintaining the original cell's TA or the compensated TA.

[0181] In one implementation, the terminal may further compensate for a preset N-TA-offset before sending the uplink reference signal based on the TA of the original cell. The N-TA-offset may be obtained based on the target cell or the original cell.

[0182] (86) Perform TA compensation based on the RSTD between the target cell and the original cell, and send the uplink reference signal based on the compensated TA.

[0183] Optionally, RSTD may represent the time difference of arrival caused by the distance difference between the terminal and the two gNBs, or the time difference for measuring the downlink (DL) reference signal timing.

[0184] In one implementation, the compensated TA can be twice the RSTD difference. Furthermore, before sending the uplink reference signal based on the compensated TA, a preset N-TA-offset needs to be compensated, which can be obtained based on the target cell or the original cell.

[0185] It is understood that the original cell mentioned in the context of this application refers to the cell before the terminal performs cell reselection or cell handover, or the cell where TA is valid; the target cell (or new cell) refers to the cell after the terminal performs cell reselection or cell handover.

[0186] Regarding the first action described in (81)-(86) above, as a possible implementation, if any condition in the first condition group is met, the first action may include at least one of the following: initiating the SDT procedure, releasing the reference signal resource corresponding to the uplink reference signal, and entering the connected state by initiating a random access procedure. Optionally, the first action is: releasing the uplink resource corresponding to the uplink reference signal and initiating the SDT procedure, or releasing the uplink resource corresponding to the uplink reference signal and initiating random access to enter the connected state. In other words, if any condition in the first condition group is met, the TA validity parameter of the original cell is no longer valid.

[0187] Conversely, the terminal may perform the following action (85) only when all of these conditions in the first condition group are not met, such as when the TA validity parameter of the original cell is not invalid, the RSTD between the target cell and the original cell is not exceeded, and / or the RSRP difference between the target cell and the original cell is not exceeded, and the dwell time in the target cell exceeds the threshold. That is, the terminal sends the uplink reference signal based on the TA of the original cell.

[0188] Based on this, as an implementation, the conditions of the first condition group include at least one of the following (91)-(96).

[0189] (91) The original cell’s TA validity condition has failed.

[0190] Assuming the TA validity parameters include an RSRP threshold and a TA Timer, then the failure of the TA validity condition can be due to an RSRP change exceeding the RSRP threshold or a TA Timer timeout. It can be understood that the RSRP change refers to the change in the RSRP of the Synchronization Signal and PBCH block (SSB) from the time the terminal receives the TA command.

[0191] (92) The RSTD between the target cell and the original cell exceeds the third threshold.

[0192] Wherein, RSTD is the reference signal arrival time difference obtained by the terminal measuring the reference signals of the original cell and the target cell. That is, RSTD can be expressed as the arrival time difference caused by the distance difference between the terminal and the two gNBs, or as the time difference for measuring the DL reference signal timing.

[0193] In one implementation, the RSTD reference cell can be either the original cell or the target cell.

[0194] In addition, when the network-side device sends cell list information to the terminal, it can simultaneously indicate the SFN0-offset (SFN0 offset value) or SFN0 absolute time / time difference between each first cell in the cell list information to assist the terminal in calculating RSTD. The RSTD only includes the time difference of signal transmission in space, and does not include the time difference caused by the offset of cell transmission time.

[0195] (93) The RSRP difference between the target cell and the original cell exceeds the fourth threshold.

[0196] The RSRP difference is the difference in reference signal received power obtained by the terminal from measuring the reference signals of the new cell and the original cell.

[0197] For RSTD as described in (92) and RSRP as described in (93), the terminal can obtain the information by measuring reference signals SSB, DL PRS (Downlink Positioning RS), CSI-RS, etc. In one implementation, RSTD or RSRP can be calculated based on a set of reference signals, which can be at least one of the following (931)-(933).

[0198] (931) The S reference signal resources with the largest RSRP, such as the S S SSBs with the highest RSRP.

[0199] (932) A set of reference signals pre-configured or agreed upon by the protocol, such as a set of SSBs used to obtain SIB1.

[0200] (933) A set of reference signals indicated by the network, such as reference signals specifically used to calculate the RSTD or RSRP difference.

[0201] Furthermore, for the measurement of RSTD and RSRP, the network can also indicate expected RSTD and expected-RSTD-Uncertain to assist the terminal in measuring the RS of each first cell in the cell information list.

[0202] The condition-related parameters, such as the RSTD threshold and / or RSRP difference threshold, and reference signal configuration, can be obtained through at least one method: protocol agreement, network indication, or terminal selection. Specifically, when indicated via network, the condition-related parameters, such as the RSTD threshold and / or RSRP difference threshold, and reference signal configuration, can be sent to the terminal together with the uplink reference signal configuration, or included within the uplink reference signal configuration. Optionally, the aforementioned RSTD, RSRP difference, and other measurement or calculation quantities are merely examples of measurement or calculation quantities based on the reference signal between the target cell and the original cell. In this invention, the aforementioned measurement and calculation quantities may also include, but are not limited to, at least one of RSTD, RSRP difference, and RSRQ difference.

[0203] (94) The terminal stays in the target cell for more than the fifth threshold.

[0204] (95) The difference between the downlink timing of the target cell and the downlink timing of the original cell exceeds the sixth threshold.

[0205] (96) The target cell does not allow terminals camped in the target cell to send uplink reference signals without receiving the sixth information, wherein the sixth information is the TA command and / or TA validity parameters of the target cell.

[0206] In other words, if the target cell does not allow cell-to-cell handover to this cell, then even if the terminal does not receive a TA command from this cell, it can still send uplink signals / data (except for Prach / preamble) to the network-side equipment. Alternatively, if the target cell does not allow cell-to-cell handover to this cell, the terminal can send uplink signals / data (except for Prach / preamble) according to the TA validity parameters of the original cell.

[0207] As another possible implementation, if not all conditions in the first condition group are met, the first action includes transmitting the uplink reference signal based on the TA of the original cell, and / or compensating for the TA based on the RSTD difference between the target cell and the original cell, and transmitting the uplink reference signal based on the compensated TA. That is, if not all conditions in the first condition group are met, the terminal maintains the TA of the original cell when transmitting the uplink reference signal, or the terminal compensates for the TA based on the RSTD difference between the new cell and the original cell, and then transmits the uplink reference signal based on the compensated TA.

[0208] Furthermore, similar to the positioning process provided in the aforementioned method embodiment 200, in this embodiment, in order to avoid the problem of high terminal power consumption caused by frequent SDT initiation or connection state due to frequent cell reselection or cell handover when there is dense cell deployment and / or the terminal has a certain degree of mobility, this application expands the effective area of ​​the uplink reference signal to multiple cells, thereby reducing the frequent SDT initiation or connection state entry behavior of the terminal.

[0209] For example, before performing the aforementioned step S410, the terminal may receive cell list information sent by the network-side device. This cell list information may include information about at least one first cell, used to assist the terminal in transmitting uplink reference signals when moving within the at least one first cell, or to indicate that the uplink reference signal is configured to be valid in each of the first cells included in the cell list, thereby expanding the effective area of ​​the uplink reference signal.

[0210] It is understood that the description of the downlink tube in the implementation process of the cell list information, etc., can be referred to the description in method embodiment 200. To avoid repetition, it will not be repeated here.

[0211] In this embodiment, the terminal transmits uplink reference signals in idle or inactive state, thereby effectively reducing the high power consumption caused by terminal positioning. Simultaneously, by executing first actions related to the transmission, release, and update of uplink reference signals, the terminal ensures the validity of the TA (Transmission and Acquisition) or the validity of the uplink reference signal configuration after cell reselection or cell handover.

[0212] It should be noted that the positioning method 200-400 provided in this application embodiment can be executed by a positioning device, or by a control module in the positioning device for executing the positioning method. This application embodiment uses the positioning device executing positioning method 200-400 as an example to illustrate the positioning device provided in this application embodiment.

[0213] like Figure 5 The diagram shown is a schematic representation of a positioning device 500 provided in an exemplary embodiment of this application. The positioning device 500 includes: a transmission module 510, configured to transmit an uplink reference signal in an idle state or an inactive state, the uplink reference signal including an uplink positioning reference signal and / or an uplink sensing signal; and a first execution module 520, configured for the terminal to receive target feedback information sent by the network-side device based on a first time window and / or to listen to a first physical downlink control channel (PDCCH), the target feedback information being carried in the first PDCCH, and / or the target feedback information being carried in a physical downlink shared channel (PDSCH) scheduled by the first PDCCH. In one implementation, the second execution module 520 is further configured to open the first time window during N uplink reference signal instances or after the terminal has received N uplink reference signal instances; wherein the uplink reference signal instances are used to transmit the uplink reference signal, and N is an integer greater than or equal to 1.

[0214] In one implementation, the first execution module 520 obtains the configuration of the first time window, wherein the configuration of the first time window includes at least one of the following: the start point of the time window, the end point of the time window, the length of the time window, the period of the time window, and the period offset of the time window.

[0215] In one implementation, the starting point of the time window includes any one of the following: a first position, the first position being the first time unit after the time units corresponding to the N uplink reference signal instances; a second position, the second position being the first non-uplink time unit after the time units corresponding to the N uplink reference signal instances; a third position, the third position being the first downlink time unit after the time units corresponding to the N uplink reference signal instances; and a fourth position, the fourth position being the first time unit corresponding to a specific control resource set (Coreset), wherein the specific Coreset is the first Coreset after the N uplink reference signal instances and is associated with the first PDCCH, or the specific Coreset is the first... The first Coreset at a specified distance and associated with the first PDCCH; the fifth position, which is located after the time unit corresponding to the N uplink reference signal instances and has a second specified distance between it and the time unit corresponding to the N uplink reference signal instances; the sixth position, which is determined based on a first offset value and the start time, end time, or any specified time between the start time and the end time of the first uplink reference signal instance, wherein the first uplink reference signal instance belongs to the N uplink reference signal instances; the seventh position, which is the transmission time of a specific PUSCH resource associated with the N uplink reference signal instances; and the eighth position, which is the time of network indication, protocol agreement, or higher layer configuration.

[0216] In one implementation, the end point of the time window includes at least one of the following: a ninth position, the ninth position being the reception time of the Radio Resource Control (RRC) release message; and a tenth position, the tenth position being determined based on a second offset value and the start time, end time, or any specified time between the start time and the end time of a second uplink reference signal instance, wherein the second uplink reference signal instance belongs to the N uplink reference signal instances.

[0217] In one implementation, the subcarrier spacing (SCS) corresponding to the time slot or symbol within the first time window satisfies any one of the following: the subcarrier spacing (SCS) corresponding to the time slot or symbol is consistent with the SCS corresponding to the uplink reference signal; or, the subcarrier spacing (SCS) corresponding to the time slot or symbol is consistent with the SCS corresponding to the Initial Bandwidth Part (Initial BWP); or, the SCS corresponding to the time slot or symbol is consistent with the SCS corresponding to a specific search space, wherein the specific search space is used to search for the first PDCCH.

[0218] In one implementation, the target feedback information includes at least one of the following: first information, used to indicate whether or not the configuration update of the uplink reference signal exists; second information, used to indicate whether or not a timed advance TA update exists; third information, used to indicate whether the network-side device successfully receives or measures the uplink reference signal; fourth information, used to indicate whether or not the terminal enters a connected state; fifth information, used to indicate the TA update value or TA change; TA validity parameters or update information of TA validity parameters; the configuration of the uplink reference signal or the updated configuration of the uplink reference signal.

[0219] In one implementation, the first execution module 520 is further configured to: instruct the network-side device to enable or disable the first time window; receive first indication information sent by the network-side device, the first indication information being used to instruct the terminal to enable or disable the first time window; and determine whether to enable or disable the first time window based on the target discontinuous reception DRX configuration, wherein the target DRX configuration is an inactive or idle DRX configuration.

[0220] In one implementation, the step of the first execution module 520 instructing the network-side device to enable or disable the first time window includes at least one of the following: the terminal instructs the network-side device to enable or disable the first time window based on the sequence information of the uplink reference signal; the terminal instructs the network-side device to enable or disable the first time window based on the mapping method of the uplink reference signal; the terminal instructs the network-side device to enable or disable the first time window based on the specific PUSCH resource corresponding to the uplink reference signal; and the terminal instructs the network-side device to enable or disable the first time window based on the Small Data Transmission Technique (SDT) method.

[0221] In one implementation, the first indication information is transmitted via a paging message or a system message.

[0222] In one implementation, the first execution module 520 determines whether to open or not open the first time window based on the target discontinuous reception DRX configuration, including at least one of the following: if the first time window is within the duration of the target DRX configuration, the terminal opens the first time window; if the time difference between the first time window and the target paging opportunity (PO) does not exceed a first threshold, the terminal opens the first time window, where the target PO is the PO closest to the first time window among a plurality of POs; if the difference between the first time window and the transmission time when the terminal last transmitted physical signals and / or physical channels does not exceed a second threshold, the terminal opens the first time window.

[0223] In one implementation, the first execution module 520 is further configured to perform at least one of the following if it does not receive target feedback information sent by the network-side device within the first time window: resend the uplink reference signal to the network-side device; initiate an SDT procedure, the SDT procedure being used to request an update of the uplink reference signal configuration and / or TA validity parameters; enter the connected state by initiating a random access procedure; and ignore the reception result, the reception result being that the terminal did not receive target feedback information sent by the network-side device within the first time window.

[0224] In one implementation, the first execution module 520 is further configured to, when there is an overlap between the first time window and the PO, perform any of the following during the overlapping time: listen only to the paging PDCCH; listen to both the paging PDCCH and the first PDCCH.

[0225] In one implementation, the target configuration is a dedicated configuration for receiving the target feedback information, or the target configuration is a shared configuration for receiving the target feedback information and / or other information besides the target feedback information; the target configuration includes at least one of the following: the configuration of the first time window; the search space configuration associated with the first PDCCH; the coreset configuration associated with the first PDCCH; and the RNTI configuration associated with the first PDCCH.

[0226] In one implementation, the transmission module 510 is further configured to receive cell list information sent by the network-side device; wherein the cell list information includes information on at least one first cell to assist the terminal in transmitting uplink reference signals when moving in the at least one first cell.

[0227] In one implementation, the cell list information includes at least one of the following: identification information of each first cell; relevant time information of each first cell; configuration information of the target reference signal of each first cell, wherein the target reference signal is used to assist the terminal in calculating the RSTD or the reference signal received power RSRP difference; RSTD threshold values ​​between each first cell; RSRP difference threshold values ​​between each first cell; TA-related parameters of each first cell; and information of a second cell, wherein the second cell is a cell among the at least one first cell that allows a terminal camped in the second cell to send an uplink reference signal without receiving a sixth piece of information, wherein the sixth piece of information is the TA command and / or TA validity parameters of the second cell.

[0228] like Figure 6The diagram shown is a structural schematic of a positioning device 600 provided in an exemplary embodiment of this application. The device 600 includes a second execution module 610, which is used to perform a first action when cell reselection or cell handover is completed during the transmission of the uplink reference signal in the idle or inactive state. The first action is related to the transmission, release or update of the uplink reference signal, and the uplink reference signal includes an uplink positioning reference signal and / or an uplink sensing signal.

[0229] In one implementation, the first action includes at least one of the following: initiating an SDT procedure, the SDT procedure being used to request an update to the uplink reference signal configuration and / or TA validity parameters; releasing the reference signal resources corresponding to the uplink reference signal; entering the connected state by initiating a random access procedure; sending a first message based on a 4-step random access procedure, the first message being used to request the network-side device to perform a TA update; sending the uplink reference signal based on the TA of the original cell; performing TA compensation based on the RSTD between the target cell and the original cell; and sending the uplink reference signal based on the compensated TA.

[0230] In one implementation, if any condition in the first condition group is met, the first action includes at least one of the following: initiating the SDT procedure, releasing the reference signal resource corresponding to the uplink reference signal, and entering the connected state by initiating a random access procedure; wherein the conditions of the first condition group include at least one of the following: the TA validity condition of the original cell fails; the RSTD between the target cell and the original cell exceeds a third threshold; the RSRP difference between the target cell and the original cell exceeds a fourth threshold; the terminal's dwell time in the target cell exceeds a fifth threshold; the difference between the downlink timing of the target cell and the downlink timing of the original cell exceeds a sixth threshold; the target cell does not allow terminals camped in the target cell to send uplink reference signals without receiving the sixth information, wherein the sixth information is the TA command and / or TA validity parameters of the target cell.

[0231] In one implementation, if not all conditions in the first condition group are met, the first action includes any one of the following: sending the uplink reference signal based on the TA of the original cell; performing TA compensation based on the RSTD between the target cell and the original cell; and sending the uplink reference signal based on the compensated TA.

[0232] In one implementation, the second execution module 610 is further configured to update the TA based on the TA update information carried in the second message when receiving a second message sent by the network-side device.

[0233] In one implementation, the TA update information includes at least one of the following: TA change value; TA validity parameter.

[0234] In one implementation, the second execution module 610 is further configured to, upon receiving the second message and when the terminal is in an idle or inactive state, perform at least one of the following: ignore the scheduling information carried in the second message, the scheduling information being used to schedule the third message; ignore other information in the second message besides the TA update information, and remain in an idle or inactive state; ignore the sending process of the third message; ignore the receiving process of the fourth message, the fourth message corresponding to the third message.

[0235] In one implementation, the second execution module 610 is further configured to receive cell list information sent by the network-side device; wherein the cell list information includes information on at least one first cell, for use in assisting the terminal in transmitting uplink reference signals when moving in the at least one first cell.

[0236] In one implementation, the cell list information includes at least one of the following: identification-related information of each first cell; relevant time information of each first cell; configuration information of the target reference signal of each first cell, the target reference signal being used to assist the terminal in calculating the RSTD or the reference signal received power RSRP difference; RSTD threshold values ​​between each first cell; RSRP difference threshold values ​​between each first cell; TA-related parameters of each first cell; and information of a second cell, the second cell being a cell among the at least one first cell that allows a terminal camped in the second cell to send an uplink reference signal without receiving a sixth piece of information, the sixth piece of information being the TA command and / or TA validity parameters of the second cell.

[0237] The positioning device 500 in this application embodiment may be a device, a device with an operating system, or an electronic device, or it may be a component, integrated circuit, or chip in a terminal. The device or electronic device may be a mobile terminal or a non-mobile terminal. For example, a mobile terminal may include, but is not limited to, the types of terminals 11 listed above, while a non-mobile terminal may be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not specifically limit the type of terminal.

[0238] The positioning device 500 and / or 600 provided in the embodiments of this application can achieve Figures 2 to 4The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0239] This application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method described in method embodiments 200-400. This terminal embodiment corresponds to the above-described terminal-side method embodiments, and all implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and achieve the same technical effect. Specifically, Figure 7 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0240] The terminal 700 includes, but is not limited to, at least some of the following components: radio frequency unit 701, network module 702, audio output unit 703, input unit 704, sensor 705, display unit 706, user input unit 707, interface unit 708, memory 709, and processor 710.

[0241] Those skilled in the art will understand that the terminal 700 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 710 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 7 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0242] It should be understood that, in this embodiment, the input unit 704 may include a graphics processing unit (GPU) 1041 and a microphone 7042. The GPU 7041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 706 may include a display panel 7061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0243] In this embodiment, the radio frequency unit 701 receives downlink data from the network-side device and processes it for the processor 710; additionally, it sends uplink data to the network-side device. Typically, the radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0244] The memory 709 can be used to store software programs or instructions and various data. The memory 709 may primarily include a program or instruction storage area and a data storage area. The program or instruction storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 709 may include high-speed random access memory and non-volatile memory, wherein the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. For example, at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.

[0245] Processor 710 may include one or more processing units; optionally, processor 710 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications or instructions, and the modem processor mainly handles wireless communication, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 710.

[0246] The radio frequency unit 701 is used to transmit an uplink reference signal in an idle state or an inactive state. The uplink reference signal includes an uplink positioning reference signal and / or an uplink sensing signal.

[0247] The processor 710 is configured to receive target feedback information sent by the network-side device based on a first time window and / or listen to a first physical downlink control channel (PDCCH), wherein the target feedback information is carried in the first PDCCH, and / or, the target feedback information is carried in a physical downlink shared channel (PDSCH) scheduled by the first PDCCH.

[0248] In one implementation, the processor 710 is further configured to open the first time window during N uplink reference signal instances or after the terminal has N uplink reference signal instances; wherein the uplink reference signal instances are used to transmit the uplink reference signal, and N is an integer greater than or equal to 1.

[0249] In one implementation, the processor 710 is further configured to obtain the configuration of the first time window; wherein the configuration of the first time window includes at least one of the following: the start point of the time window, the end point of the time window, the length of the time window, the period of the time window, and the period offset of the time window.

[0250] In one implementation, the starting point of the time window includes any one of the following: a first position, the first position being the first time unit after the time units corresponding to the N uplink reference signal instances; a second position, the second position being the first non-uplink time unit after the time units corresponding to the N uplink reference signal instances; a third position, the third position being the first downlink time unit after the time units corresponding to the N uplink reference signal instances; and a fourth position, the fourth position being the first time unit corresponding to a specific control resource set (Coreset), wherein the specific Coreset is the first Coreset after the N uplink reference signal instances and is associated with the first PDCCH, or the specific Coreset is the first... The first Coreset at a specified distance and associated with the first PDCCH; the fifth position, which is located after the time unit corresponding to the N uplink reference signal instances and has a second specified distance between it and the time unit corresponding to the N uplink reference signal instances; the sixth position, which is determined based on a first offset value and the start time, end time, or any specified time between the start time and the end time of the first uplink reference signal instance, wherein the first uplink reference signal instance belongs to the N uplink reference signal instances; the seventh position, which is the transmission time of a specific PUSCH resource associated with the N uplink reference signal instances; and the eighth position, which is the time of network indication, protocol agreement, or higher layer configuration.

[0251] In one implementation, the end point of the time window includes at least one of the following: a ninth position, the reception time of the Radio Resource Control (RRC) release message at the ninth position; and a tenth position, the tenth position being determined based on a second offset value and the start time, end time, or any specified time between the start time and the end time of a second uplink reference signal instance, wherein the second uplink reference signal instance belongs to the N uplink reference signal instances.

[0252] In one implementation, the subcarrier spacing (SCS) corresponding to the time slot or symbol within the first time window satisfies any one of the following: the subcarrier spacing (SCS) corresponding to the time slot or symbol is consistent with the SCS corresponding to the uplink reference signal; the subcarrier spacing (SCS) corresponding to the time slot or symbol is consistent with the SCS corresponding to the Initial Bandwidth Part (Initial BWP); the SCS corresponding to the time slot or symbol is consistent with the SCS corresponding to a specific search space, wherein the specific search space is used to search for the first PDCCH.

[0253] In one implementation, the target feedback information includes at least one of the following: first information, used to indicate whether or not the configuration update of the uplink reference signal exists; second information, used to indicate whether or not a timed advance TA update exists; third information, used to indicate whether the network-side device successfully receives or measures the uplink reference signal; fourth information, used to indicate whether or not the terminal enters a connected state; fifth information, used to indicate the TA update value or TA change; TA validity parameters or update information of TA validity parameters; the configuration of the uplink reference signal or the updated configuration of the uplink reference signal.

[0254] In one implementation, the processor 710 is further configured to: instruct the network-side device to enable or disable the first time window; receive first indication information sent by the network-side device, the first indication information being used to instruct the terminal to enable or disable the first time window; and determine whether to enable or disable the first time window based on a target discontinuous reception DRX configuration, wherein the target DRX configuration is an inactive or idle DRX configuration.

[0255] In one implementation, the step of the processor 710 instructing the network-side device to enable or disable the first time window includes at least one of the following: the terminal instructs the network-side device to enable or disable the first time window based on the sequence information of the uplink reference signal; the terminal instructs the network-side device to enable or disable the first time window based on the mapping method of the uplink reference signal; the terminal instructs the network-side device to enable or disable the first time window based on the specific PUSCH resource corresponding to the uplink reference signal; and the terminal instructs the network-side device to enable or disable the first time window based on the Small Data Transmission Technique (SDT) method.

[0256] In one implementation, the first indication information is transmitted via a paging message or a system message.

[0257] In one implementation, the step of the processor 710 determining whether to open or not open the first time window based on the target discontinuous reception DRX configuration includes at least one of the following: if the first time window is within the duration of the target DRX configuration, the terminal opens the first time window; if the time difference between the first time window and the target paging opportunity (PO) does not exceed a first threshold, the terminal opens the first time window, wherein the target PO is the PO closest to the first time window among a plurality of POs; if the difference between the first time window and the transmission time when the terminal last transmitted physical signals and / or physical channels does not exceed a second threshold, the terminal opens the first time window.

[0258] In one implementation, the processor 710 is further configured to, if it does not receive target feedback information sent by the network-side device within the first time window, perform at least one of the following: resend the uplink reference signal to the network-side device; initiate an SDT procedure, the SDT procedure being used to request an update of the uplink reference signal configuration and / or TA validity parameters; enter the connected state by initiating a random access procedure; and ignore the reception result, the reception result being that the terminal did not receive target feedback information sent by the network-side device within the first time window.

[0259] In one implementation, the processor 710 is further configured to, when there is an overlap between the first time window and the PO, perform any of the following during the overlapping time: listen only to the paging PDCCH; listen to both the paging PDCCH and the first PDCCH.

[0260] In one implementation, the target configuration is a dedicated configuration for receiving the target feedback information, or the target configuration is a shared configuration for receiving the target feedback information and / or other information besides the target feedback information; the target configuration includes at least one of the following: the configuration of the first time window; the search space configuration associated with the first PDCCH; the coreset configuration associated with the first PDCCH; and the RNTI configuration associated with the first PDCCH.

[0261] In one implementation, the radio frequency unit 701 is further configured to receive cell list information sent by the network-side device; wherein the cell list information includes information on at least one first cell to assist the terminal in transmitting uplink reference signals when moving in the at least one first cell.

[0262] In one implementation, the cell list information includes at least one of the following: identification information of each first cell; relevant time information of each first cell; configuration information of the target reference signal of each first cell, wherein the target reference signal is used to assist the terminal in calculating the RSTD or the reference signal received power RSRP difference; RSTD threshold values ​​between each first cell; RSRP difference threshold values ​​between each first cell; TA-related parameters of each first cell; and information of a second cell, wherein the second cell is a cell among the at least one first cell that allows a terminal camped in the second cell to send an uplink reference signal without receiving a sixth piece of information, wherein the sixth piece of information is the TA command and / or TA validity parameters of the second cell.

[0263] In this embodiment, the terminal transmits uplink reference signals in idle or inactive mode, thereby effectively reducing the high power consumption caused by terminal positioning. Simultaneously, the terminal receives target feedback information sent by the network side based on a first time window and / or listens to a first PDCCH related to the target feedback information, thereby maintaining the validity of the TA or the positioning reference signal configuration during the positioning process, thus ensuring positioning / sensing performance.

[0264] It is understood that, in addition to the aforementioned implementation methods, in this embodiment, the processor 710 in the terminal 700 can also be used to perform a first action when cell reselection or cell handover is completed during the transmission of the uplink reference signal in the idle or inactive state. The first action is related to the transmission, release or update of the uplink reference signal, and the uplink reference signal includes an uplink positioning reference signal and / or an uplink sensing signal.

[0265] In one implementation, the first action includes at least one of the following: initiating an SDT procedure, the SDT procedure being used to request an update to the uplink reference signal configuration and / or TA validity parameters; releasing the reference signal resources corresponding to the uplink reference signal; entering the connected state by initiating a random access procedure; sending a first message based on a 4-step random access procedure, the first message being used to request the network-side device to perform a TA update; sending the uplink reference signal based on the TA of the original cell; performing TA compensation based on the RSTD between the target cell and the original cell; and sending the uplink reference signal based on the compensated TA.

[0266] In one implementation, if any condition in the first condition group is met, the first action includes at least one of the following: initiating the SDT procedure, releasing the reference signal resource corresponding to the uplink reference signal, and entering the connected state by initiating a random access procedure; wherein the conditions of the first condition group include at least one of the following: the TA validity condition of the original cell fails; the RSTD between the target cell and the original cell exceeds a third threshold; the RSRP difference between the target cell and the original cell exceeds a fourth threshold; the terminal's dwell time in the target cell exceeds a fifth threshold; the difference between the downlink timing of the target cell and the downlink timing of the original cell exceeds a sixth threshold; the target cell does not allow terminals camped in the target cell to send uplink reference signals without receiving the sixth information, wherein the sixth information is the TA command and / or TA validity parameters of the target cell.

[0267] In one implementation, if not all conditions in the first condition group are met, the first action includes any one of the following: sending the uplink reference signal based on the TA of the original cell; performing TA compensation based on the RSTD between the target cell and the original cell; and sending the uplink reference signal based on the compensated TA.

[0268] In one implementation, the processor 710 is further configured to update the TA based on the TA update information carried in the second message when receiving a second message sent by the network-side device.

[0269] In one implementation, the TA update information includes at least one of the following: TA change value; TA validity parameter.

[0270] In one implementation, the processor 710 is further configured to, upon receiving a second message and when the terminal is in an idle or inactive state, perform at least one of the following: ignore the scheduling information carried in the second message, the scheduling information being used to schedule a third message; ignore other information in the second message besides the TA update information, and remain in an idle or inactive state; ignore the sending process of the third message; and ignore the receiving process of a fourth message, the fourth message corresponding to the third message.

[0271] In one implementation, the processor 710 is further configured to receive cell list information sent by a network-side device; wherein the cell list information includes information on at least one first cell to assist the terminal in transmitting uplink reference signals when moving in the at least one first cell.

[0272] In one implementation, the cell list information includes at least one of the following: identification-related information of each first cell; relevant time information of each first cell; configuration information of the target reference signal of each first cell, the target reference signal being used to assist the terminal in calculating the RSTD or the reference signal received power RSRP difference; RSTD threshold values ​​between each first cell; RSRP difference threshold values ​​between each first cell; TA-related parameters of each first cell; and information of a second cell, the second cell being a cell among the at least one first cell that allows a terminal camped in the second cell to send an uplink reference signal without receiving a sixth piece of information, the sixth piece of information being the TA command and / or TA validity parameters of the second cell.

[0273] In this embodiment, the terminal transmits uplink reference signals in idle or inactive mode, thereby effectively reducing the high power consumption caused by terminal positioning. Simultaneously, by executing first actions related to the transmission, release, and update of uplink reference signals, the terminal ensures the validity of the TA (Transmission and Acquisition) or the validity of the uplink reference signal configuration after cell reselection or handover to a new cell.

[0274] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described positioning method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0275] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM).

[0276] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface and the processor are coupled. The processor is used to run network-side device programs or instructions to implement the various processes of the above-described positioning method embodiments and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0277] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0278] This application also provides a computer program product, which includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor. When the program or instructions are executed by the processor, they implement the various processes of the above-described positioning method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0279] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0280] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0281] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A positioning method, characterized in that, include: If the terminal completes cell reselection or cell handover while transmitting uplink reference signals in idle or inactive state, the terminal performs the first action. The uplink reference signal includes an uplink positioning reference signal and / or an uplink sensing signal; The first act includes any of the following: The uplink reference signal is sent based on the original cell's TA; TA compensation is performed based on the reference signal arrival time difference (RSTD) between the target cell and the original cell, and the uplink reference signal is transmitted based on the compensated TA.

2. The method as described in claim 1, characterized in that, The RSTD between the target cell and the original cell is the time difference for measuring the downlink reference signal timing.

3. The method as described in claim 1, characterized in that, The compensation value for TA compensation is twice the RSTD.

4. The method as described in claim 1, characterized in that, If the RSTD between the target cell and the original cell exceeds the third threshold, the TA validity parameter of the original cell is no longer valid.

5. The method as described in claim 1, characterized in that, The transmission of the uplink reference signal based on the original cell's TA includes: If the TA validity parameter of the original cell is not invalid, the uplink reference signal is sent based on the TA of the original cell.

6. The method as described in claim 1, characterized in that, The transmission of the uplink reference signal based on the original cell's TA includes: If all conditions in the first condition group are not met, the uplink reference signal is sent based on the TA of the original cell. The first condition group includes the target cell and the original cell having an RSTD exceeding a third threshold.

7. The method according to any one of claims 1-6, characterized in that, The method further includes: The terminal receives cell list information sent by the network-side device; The cell list information includes information on at least one first cell, which is used to assist the terminal in transmitting uplink reference signals when moving in the at least one first cell.

8. The method as described in claim 7, characterized in that, The cell list information includes at least one of the following: Identification information for each of the first residential communities; Relevant time information for each of the first communities; Configuration information of the target reference signal for each of the first cells, wherein the target reference signal is used to assist the terminal in calculating the RSTD or the reference signal received power RSRP difference; RSTD threshold values ​​between each of the first cells; RSRP difference threshold value between each of the first cells; TA-related parameters for each of the first cells; Information about the second cell, wherein the second cell is one of the at least one first cell that allows a terminal camped in the second cell to send an uplink reference signal without receiving the sixth information, wherein the sixth information is the TA command and / or TA validity parameters of the second cell.

9. A positioning device, characterized in that, Applied to a terminal, the device includes: The second execution module is used to enable the terminal to perform the first action when cell reselection or cell handover is completed during the transmission of uplink reference signals in idle or inactive states. The uplink reference signal includes an uplink positioning reference signal and / or an uplink sensing signal; The first act includes at least one of the following: The uplink reference signal is sent based on the original cell's TA; TA compensation is performed based on the reference signal arrival time difference (RSTD) between the target cell and the original cell, and the uplink reference signal is transmitted based on the compensated TA.

10. The apparatus as claimed in claim 9, characterized in that, The RSTD between the target cell and the original cell is the time difference for measuring the downlink reference signal timing.

11. The apparatus as claimed in claim 9, characterized in that, The compensation value for TA compensation is twice the RSTD.

12. The apparatus as claimed in claim 9, characterized in that, If the RSTD between the target cell and the original cell exceeds the third threshold, the TA validity parameter of the original cell is no longer valid.

13. The apparatus as claimed in claim 9, characterized in that, The transmission of the uplink reference signal based on the original cell's TA includes: If the TA validity parameter of the original cell is not invalid, the uplink reference signal is sent based on the TA of the original cell.

14. The apparatus as claimed in claim 9, characterized in that, The transmission of the uplink reference signal based on the original cell's TA includes: If all conditions in the first condition group are not met, the uplink reference signal is sent based on the TA of the original cell. The first condition group includes the target cell and the original cell having an RSTD exceeding a third threshold.

15. The apparatus according to any one of claims 9-14, characterized in that, The second execution module is also used to receive cell list information sent by the network-side device; The cell list information includes information on at least one first cell, which is used to assist the terminal in transmitting uplink reference signals when moving in the at least one first cell.

16. A terminal, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the positioning method as described in any one of claims 1 to 8.

17. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the positioning method as described in any one of claims 1 to 8.

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