Positioning method, terminal and network side device

Abstract

The application discloses a positioning method, a terminal and a network side device, and belongs to the technical field of wireless communication. The positioning method of the application comprises the following steps: a terminal performs a positioning operation in an idle state or an inactivated state. The positioning operation comprises at least one of the following: receiving and measuring a downlink positioning reference signal, reporting position related information, and sending an uplink positioning reference signal. In the application, the positioning function is performed in the RRC inactivated state or the RRC idle state, so that low power consumption and / or positioning performance are guaranteed.

Description

TECHNICAL FIELD

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

[0002] In the current positioning method, a user equipment (UE, also referred to as a terminal) needs to perform a positioning operation in a radio resource control (RRC) connected state (connected state). If the terminal is in an RRC idle state (idle state) or an RRC inactive state (inactive state), the terminal needs to enter the RRC connected state first, and then the positioning operation can be performed.

[0003] The energy saving scheme of the terminal is one of the directions that are highly concerned. If the terminal must perform the positioning operation in the RRC connected state, the energy saving will be adversely affected. SUMMARY

[0004] Embodiments of the present application provide a positioning method, a terminal and a network side device, which can solve the problem that the terminal must perform the positioning operation in the RRC connected state, which is not conducive to energy saving.

[0005] In a first aspect, a positioning method is provided, and the method comprises the following steps.

[0006] The terminal performs a positioning operation in an idle state or an inactive state, wherein the positioning operation comprises at least one of the following:

[0007] receiving and measuring a downlink positioning reference signal;

[0008] reporting position related information;

[0009] sending an uplink positioning reference signal.

[0010] In a second aspect, a positioning method is provided, and the method comprises the following steps.

[0011] The terminal performs a positioning operation in an idle state, an inactive state or a connected state, wherein the positioning operation comprises reporting position related information, and the position related information comprises an association relationship between a positioning measurement result and a time error group, and / or an association relationship between an uplink positioning reference signal and a time error group.

[0012] In a third aspect, a positioning method is provided, and the method comprises the following steps.

[0013] The network side device performs a positioning operation, wherein the positioning operation comprises at least one of the following:

[0014] sending a downlink positioning reference signal to a terminal in an idle state or an inactive state;

[0015] Receiving the position-related information reported by the terminal in the idle state or the inactive state, wherein the position-related information comprises an association between the positioning measurement result and the time error group, and / or an association between the uplink positioning reference signal and the time error group.

[0016] Measuring the uplink positioning reference signal sent by the terminal in the idle state or the inactive state.

[0017] In a fourth aspect, a positioning method is provided, comprising:

[0018] The network-side device performs a positioning operation, wherein performing the positioning operation comprises:

[0019] Receiving the position-related information reported by the terminal in the idle state or the inactive state, wherein the position-related information comprises an association between the positioning measurement result and the time error group, and / or an association between the uplink positioning reference signal and the time error group.

[0020] In a fifth aspect, a positioning apparatus is provided, comprising:

[0021] The positioning module is configured to perform a positioning operation in the idle state or the inactive state, wherein performing the positioning operation comprises at least one of the following:

[0022] Receiving and measuring the downlink positioning reference signal;

[0023] Reporting the position-related information;

[0024] Sending the uplink positioning reference signal.

[0025] In a sixth aspect, a positioning apparatus is provided, comprising:

[0026] The positioning module is configured to perform a positioning operation in the idle state, the inactive state, or the connected state, wherein performing the positioning operation comprises:

[0027] Reporting the position-related information, wherein the position-related information comprises an association between the positioning measurement result and the time error group, and / or an association between the uplink positioning reference signal and the time error group.

[0028] In a seventh aspect, a positioning apparatus is provided, comprising:

[0029] The positioning module is configured to perform a positioning operation, wherein performing the positioning operation comprises at least one of the following:

[0030] Sending the downlink positioning reference signal to the terminal in the idle state or the inactive state;

[0031] Receiving the position-related information reported by the terminal in the idle state or the inactive state;

[0032] Measuring the uplink positioning reference signal sent by the terminal in the idle state or the inactive state.

[0033] In an eighth aspect, a positioning apparatus is provided, comprising:

[0034] a positioning module configured to perform a positioning operation, wherein performing the positioning operation comprises:

[0035] receiving, from a terminal in an idle state or an inactive state, reported location-related information, the location-related information comprising an association between a positioning measurement result and a time error set, and / or an association between an uplink positioning reference signal and a time error set.

[0036] In a ninth aspect, a terminal is provided, comprising a processor, a memory, and a program or instructions stored in the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method according to the first aspect or the second aspect.

[0037] In a tenth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the processor is configured to perform a positioning operation in an idle state or an inactive state, wherein performing the positioning operation comprises at least one of:

[0038] receiving and measuring a downlink positioning reference signal;

[0039] reporting location-related information;

[0040] transmitting an uplink positioning reference signal.

[0041] In an eleventh aspect, a terminal is provided, comprising a processor and a communication interface, wherein the processor is configured to perform a positioning operation in an idle state, an inactive state, or a connected state, wherein performing the positioning operation comprises:

[0042] reporting location-related information, the location-related information comprising an association between a positioning measurement result and a time error set, and / or an association between an uplink positioning reference signal and a time error set.

[0043] In a twelfth aspect, a network-side device is provided, comprising a processor, a memory, and a program or instructions stored in the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method according to the second aspect.

[0044] In a thirteenth aspect, a network-side device is provided, comprising a processor and a communication interface, wherein the processor is configured to perform a positioning operation, wherein performing the positioning operation comprises at least one of:

[0045] transmitting, to a terminal in an idle state or an inactive state, a downlink positioning reference signal;

[0046] receiving, from a terminal in an idle state or an inactive state, reported location-related information;

[0047] measuring an uplink positioning reference signal transmitted by a terminal in an idle state or an inactive state.

[0048] In a thirteenth aspect, a network-side device is provided, comprising a processor and a communication interface, wherein the processor is configured to perform a positioning operation, and performing the positioning operation comprises:

[0049] receiving position-related information reported by a terminal in an idle state or an inactive state, the position-related information comprising an association between a positioning measurement result and a time error set, and / or an association between an uplink positioning reference signal and a time error set.

[0050] In a fourteenth aspect, a readable storage medium is provided, the readable storage medium storing a program or instructions, the program or instructions being executed by a processor to implement the steps of the method according to the first aspect or the second aspect or the third aspect or the fourth aspect.

[0051] In a fifteenth aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface being coupled to the processor, and the processor being configured to run a program or instructions to implement the method according to the first aspect or the second aspect or the third aspect or the fourth aspect.

[0052] In a sixteenth aspect, a computer program / program product is provided, the computer program / program product being stored in a non-volatile storage medium, and the program / program product being executed by at least one processor to implement the steps of the positioning method according to the first aspect or the second aspect or the third aspect or the fourth aspect.

[0053] In the embodiments of the present application, the positioning function is performed in the RRC inactive state or the RRC idle state, so as to guarantee the positioning performance and low power consumption. BRIEF DESCRIPTION OF DRAWINGS

[0054] Figure 1 A block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0055] Figure 2 A schematic diagram of the relationship between the idle state, the inactive state and the connected state;

[0056] Figure 3 A schematic diagram of a determination method of the timing advance;

[0057] Figure 4 A flowchart of a 2-step RACH;

[0058] Figure 5 A flowchart of an uplink positioning procedure;

[0059] Figure 6 A flowchart of a positioning method performed by a terminal according to the embodiments of the present application;

[0060] Figure 7 a flowchart of a positioning method performed by a network-side device according to an embodiment of the present application;

[0061] Figure 8 a structural diagram of a positioning apparatus according to an embodiment of the present application;

[0062] Figure 9 a structural diagram of a positioning apparatus according to another embodiment of the present application;

[0063] Figure 10 a structural diagram of a communication device according to an embodiment of the present application;

[0064] Figure 11 a hardware structural diagram of a terminal according to an embodiment of the present application;

[0065] Figure 12 a hardware structural diagram of a network-side device according to an embodiment of the present application. DETAILED DESCRIPTION

[0066] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0067] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second" are usually a category, and are not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally represents a "or" relationship between the front and rear associated objects.

[0068] It is worth noting that the technology described in the embodiments of the present application is 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 the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied outside the NR system application, such as in a 6th Generation (6G) communication system. th

[0069] Figure 1 ​A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network side device 12. The terminal 11 can also be referred to as a terminal device or a user terminal (UE). The terminal 11 can be a terminal side device such as a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a palm computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (MID), a wearable device, or a vehicle user equipment (VUE), a pedestrian user equipment (PUE), etc. The wearable device includes a smart watch, a bracelet, a headset, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network side device 12 can be a base station or a core network. The base station can be referred to as a node B, an evolved node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a transmitting receiving point (TRP), or some other appropriate terminology in the art, as long as the same technical effects are achieved. The base station is not limited to a specific technical term, and it should be noted that only a base station in an NR system is taken as an example in the embodiments of the present application, but the specific type of the base station is not limited. Optionally, the core network device can be a location server, such as a location server (LMF, location management function) in the NR. Of course, the location server is not limited to the NR version in the present application.

[0070] First, the technical content related to the technical solutions of the present application is described below.

[0071] 1. RRC idle state (Idle state), RRC inactive state (Inactive state) and RRC connected state (connected state)

[0072] For convenience of description, the RRC idle state is referred to as idle state hereinafter, the RRC inactive state is referred to as inactive state hereinafter, and the RRC connected state is referred to as connected state hereinafter.

[0073] The UE in idle state has no RRC context at the network side device, that is, the parameters necessary for communication between the network side device and the UE do not belong to a certain cell, and the network side device does not know whether the UE exists. The UE is assigned a set of tracking area identifiers (TAIs). From the perspective of the core network, the connection between the access network (RAN) side and the core network has been disconnected. In order to reduce power consumption, the UE is in a dormant state most of the time, and therefore cannot perform data transmission. In the downlink, the UE in idle state can periodically wake up to receive a paging message (if any) from the network. Mobility can be handled by cell reselection by the UE. In the idle state, the UE and the network side device do not maintain uplink synchronization, and if the UE is to be transferred from the idle state to the connected state, it can only be through random access to establish an RRC context between the UE and the network side device.

[0074] In the connected state, an RRC context can be established, and all parameters required for communication are known to both entities (UE and network side device). From the perspective of the core network, the UE is in a core network connected (CN_Connected) state. The cell to which the UE belongs is known, and the device identifier, that is, the cell radio network temporary identifier (C-RNTI), for the purpose of transmission signaling between the UE and the network side device has been configured. In the connected state, mobility can be controlled by the network side device, that is, the UE provides the network side device with neighbor cell measurements, and the network side device instructs the UE to perform handover. Uplink time synchronization can or can not exist, and when data is to be transmitted, uplink synchronization can be established by using random access.

[0075] In Long Term Evolution (LTE), only idle state and connected state are supported. In practice, it is common to use idle state as the main sleep state of the UE to save power. However, due to frequent transmission of small data packets in some cases, if the LTE method is used, there will be a large number of transitions from idle state to connected state. These transitions increase the signaling load and signaling latency. Therefore, in order to reduce the signaling load and latency, an inactive state is introduced in New Radio (NR).

[0076] In the inactive state, the RRC context of the UE is maintained. From the core network perspective, the connection between the RAN and the core network is in the state. Therefore, the transition from the inactive state to the connected state is fast and does not require core network signaling. At the same time, the UE is allowed to sleep in a similar way as in the idle state, and mobility is handled through cell reselection. Therefore, the inactive state can be regarded as a hybrid of the idle state and the connected state.

[0077] Please refer to Figure 2 , Figure 2 For the relationship between the three states of the idle state, the inactive state and the connected state, it can be seen that an important difference between different states is the mobility mechanism involved. Efficient mobility handling is a key part of any mobile communication system. For the idle state and the inactive state, mobility is handled by the UE through cell reselection, while for the connected state, mobility is handled by the network side equipment based on UE measurement.

[0078] For the UE in the idle state and the inactive state, the common points between the two are that there are common public land mobile network (PLMN) selection, cell selection and reselection, and system message reception functions; the differences include the following parts: (1) Since the core network only knows the tracking area (TA) where the UE is located in the idle state, but does not know the specific primary cell identifier (pcell id), it will issue a paging in the tracking area or tracking area list, while for the inactive state, the NG-RAN knows which RNA the UE belongs to, so it will only page the UE in the RNA area; (2) The UE access layer (AS) context is saved in the UE and the NG-RNA in the inactive state; (3) The UE saves the non-access layer (NAS) signaling connection under the control plane and the user plane 5GC-NG-RAN connection in the inactive state.

[0079] For the UE in the inactive state and the connected state, the common points between them are: (1) The UE access layer context is saved in the UE and the NG-RNA in the inactive state; (2) The connection of the control plane and the user plane has been established, so the core network usually considers that the UE is in the connected state; the differences between them are: (1) The NG-RAN knows the serving cell where the UE is located in the connected state, but for the inactive state, the NG-RAN knows which RNA the UE belongs to, so it will only page the UE in the RNA area; (2) The UE has the functions of PLMN search, cell reselection and system message reception in the inactive state; (3) The UE has the functions of uplink and downlink channel transmission and mobility (handover) in the connected state.

[0080] The scenarios that UE enters into connected state from inactive state include: uplink data pending; non-access layer signaling procedure initiation; RAN paging response; informing network that it has left the RAN notification area; periodic RAN notification area update timer timeout.

[0081] 2. Uplink positioning reference signal (SRS) in connected state

[0082] The time domain types of sounding reference signal (SRS) for channel sounding include periodic, aperiodic and semi-static.

[0083] For each SRS resource configuration, including comb2, comb4, comb8 SRS configuration, where the comb number refers to the number of subcarrier intervals between two adjacent SRS resources in the frequency domain, and the corresponding maximum cyclic shift is 8, 12, 6 respectively. The SRS resource configuration also includes the number of symbols and the starting symbol of the SRS resource. For aperiodic SRS, the SRS resource configuration includes a slot offset, and for semi-static and periodic SRS, the SRS resource configuration includes a period and a slot offset, with the period unit being a slot. In addition, the SRS resource configuration also includes the spatial relationship of the SRS SRS-SpatialRelationInfoPos, and the reference signal of the spatial relationship can be the synchronization signal block (SSB) of the serving cell, the channel state information reference signal (CSI-RS) and the SRS, the SSB and the downlink positioning reference signal PRS of the neighboring cell.

[0084] The SRS resource configuration can refer to the following:

[0085]

[0086]

[0087]

[0088]

[0089]

[0090] 3. Timing advance (TA)

[0091] Timing advance is used for UE uplink transmission, which means that the system frame of UE sending uplink data is ahead of the corresponding downlink frame by a certain time. The specific amount of advance is calculated by the base station according to the random access preamble sent by the UE, and then the UE is informed through the timing advance command (TAC).

[0092] As shown in Figure 3 , NTA is the quantity parsed by the UE in the timing advance command, N TA,offset The UE is informed through the parameter n-TimingAdvanceOffset. If the UE does not receive this parameter, a preset value is used, which is a fixed value related to multiplexing mode and frequency range. The specific value is shown in Table 1:

[0093] Table 1 N TA offset of values

[0094]

[0095] In random access, the base station determines the timing advance value by measuring the received preamble and sends it to the UE through the Timing Advance Command (TAC) in the random access feedback (Rach access response, RAR). Timing Advance Command has 12 bits, indicating the range: T A = 0, 1, 2, …, 3846. When the subcarrier spacing is 2^u*15kHz, N TA is determined by the following formula: N TA = T A · 16 · 64 / 2 μ .

[0096] That is, in NR, NTA is also related to the subcarrier spacing, which depends on the subcarrier spacing of the first uplink transmission after receiving the RAR, i.e. the subcarrier spacing of Msg3.

[0097] Although the UE completes the timing advance in random access, the UE's location and other factors may change over time, so the base station needs to constantly maintain the timing advance. For other cases, the indication range of TAC is: T A = 0, 1, 2, …, 63. N TA is determined by the following formula: N TA_new = N TA_old + (T A - 31) · 16 · 64 / 2 μ . Where N TA_old is the N TA used before receiving TAC, NTA_new is the updated NTA after receiving the TAC.

[0098] 4、4-step Random Access Channel (RACH) and 2-step RACH

[0099] 1) 4-step random access procedure includes: contention-based random access procedure (4-step RACH) and non-contention-based random access procedure.

[0100] For "contention-based random access procedure", UE sends Msg1 (random access request) to network side device. After receiving Msg1, network side device sends Msg2 (random access response RAR) message to UE, which carries uplink grant information. UE sends Msg3 according to the uplink grant in Msg2. After receiving Msg3, network side device sends Msg4 (such as contention resolution identifier) to UE. UE receives Msg4 to determine whether the contention resolution is successful. If successful, the random access procedure is successful, otherwise the random access procedure is re-initiated.

[0101] For "non-contention-based random access procedure", network side device allocates dedicated RACH resources for UE to access. UE sends Msg1 (random access request) to network side device on the dedicated resource. After receiving Msg1, network side device sends Msg2 (random access response RAR) message to UE. But when the dedicated RACH resource is insufficient, the network side device will instruct the UE to initiate contention-based RA.

[0102] 2) 2-step RACH

[0103] Please refer to Figure 4 , 2-step RACH includes the following steps:

[0104] Step 0: Network side device configures UE with 2-step RACH configuration information, such as including: MsgA and MsgB corresponding transmission resource information.

[0105] Step 1: UE triggers 2-step RACH procedure. Send request information (MsgA) to network side device, such as through physical uplink shared channel (PUSCH). At the same time, UE may also send physical random access channel (PRACH) information to network side device.

[0106] Step 2: The network-side device sends confirmation information (MsgB) to the UE. If the UE fails to receive MsgB, the UE re-sends MsgA.

[0107] 5. Uplink positioning procedure

[0108] As shown in Figure 5 , the uplink positioning procedure includes the following steps:

[0109] Step 0: LMF and gNB / TRP exchange configuration information;

[0110] Step 1: LMF and UE exchange capability information;

[0111] Step 2: LMF sends an NRPPa positioning information request (POSITIONING INFORMATION REQUEST) to the gNB / TRP;

[0112] Step 3-3a: The gNB / TRP decides on uplink SRS resources and sends SRS configuration to the UE;

[0113] Step 4: The gNB / TRP sends an NRPPa positioning response to the LMF;

[0114] Step 5a: The LMF sends an NRPPa positioning activation request to the gNB / TRP;

[0115] Step 5b: The gNB / TRP activates UE SRS transmission;

[0116] Step 5c: The gNB / TRP sends an NRPPa positioning activation response to the LMF;

[0117] Step 6: The LMF sends an NRPPa measurement request to the gNB / TRP;

[0118] Step 7: The gNB / TRP performs ULSRS measurement;

[0119] Step 8: The gNB / TRP sends an NRPPa measurement response to the LMF.

[0120] 6. Small Data Transmission (SDT)

[0121] According to the resources configured by the network-side device, the UE in the idle state or inactive state can directly send data to the network-side device through the following methods:

[0122] 1) Msg3 of the 4-step random access procedure of initial access.

[0123] 2) MsgA of the 2-step random access procedure of initial access.

[0124] 3) Network configured dedicated uplink PUSCH resource (i.e., pre-configured PUSCH; or, preallocated uplink resource (PUR)).

[0125] The network side device can directly send data to the UE in the following ways:

[0126] 1) Msg4 of the 4-step random access procedure for initial access.

[0127] 2) MsgB of the 2-step random access procedure for initial access.

[0128] 3) Downlink feedback resource corresponding to the network configured dedicated uplink resource.

[0129] 7、On-demand PRS

[0130] The on-demand PRS is not introduced in the R-16 protocol, the PRS is sent in the form of broadcast, the PRS configuration is relatively fixed, and the PRS configuration cannot be flexibly changed, which may cause waste of some resources. For example, the network device configures 128 TRPs to send a PRS with a large bandwidth in a certain area, and only a part of UEs in this area have high positioning accuracy requirements or only a part of UEs have positioning requirements. Therefore, it is not worth covering the PRS with a large bandwidth in the entire area for the part of UEs. For another example, in order to reduce the overhead, a PRS with a small bandwidth is configured in a certain area, and some UEs in the area have strong positioning accuracy, time delay, and power consumption requirements. The existing protocol cannot support flexible configuration of the PRS meeting the requirements of the UEs.

[0131] From 3GPP Rel-16, the on-demand PRS is introduced, which is specially designed for the positioning requirements of one or more UEs, and the PRS configuration is flexibly increased or reduced. For example, in a simple example, the on-demand PRS configuration is set as a plurality of PRS configuration parameter sets (including period, bandwidth, frequency point, etc.), the transmission of some PRS parameter sets is turned off when not needed, and the transmission of some PRS is turned on when needed.

[0132] In the R-17 stage, it has been determined that the on-demand PRS will be part of the standardization.

[0133] The positioning method, terminal, and network side device provided by the embodiments of the present application will be described in detail in combination with the accompanying drawings and some embodiments and application scenarios.

[0134] Please refer to Figure 6 The embodiments of the present application provide a positioning method, comprising:

[0135] Step 61: the terminal performs a positioning operation in an idle state or an inactive state, wherein performing the positioning operation comprises at least one of the following:

[0136] receiving and measuring a downlink positioning reference signal;

[0137] reporting position-related information;

[0138] sending an uplink positioning reference signal.

[0139] Optionally, the position-related information comprises at least one of the following: position information, positioning measurement results, event information, RRM measurement results, downlink positioning measurement results, and / or an association between an uplink positioning reference signal and a time error group, but is not limited to these. The event information comprises at least one of the following: area events and action events, but is not limited to these. The area event refers to the UE detecting that it has entered, left, or is located within a specified target area range (such as an area cell list / RNA / TAC). The action event refers to the UE detecting that it has moved from a previous position by more than a certain predefined linear distance.

[0140] In the embodiments of the present application, the low-energy characteristics of the inactive state or the idle state are utilized to develop positioning functions to ensure positioning performance and low power consumption.

[0141] In the embodiments of the present application, the low-energy characteristics of the inactive state or the idle state are utilized to develop positioning functions to ensure positioning performance and low power consumption.

[0142] PRS can be considered as a common signal at the cell level or the area level, and both connected-state UEs and non-connected-state (idle-state or inactive-state) UEs can share the same PRS in the same area. In Rel-17, it has been determined that on-demand PRS will be introduced, and LMF can start, stop, or update the configuration information of PRS according to the needs of the UE or itself. Starting / stopping / updating the on-demand PRS will also affect the reception of PRS by idle-state or inactive-state UEs. Generally, UEs can obtain idle-state or inactive-state PRS configuration information through broadcasting or unicast (such as through RRC release signaling). If the network changes the configuration information of PRS as needed, such as stopping the configuration information of PRS, and does not timely notify idle-state or inactive-state UEs, the UEs will still 'wake up' at the original PRS configuration time to search and listen to the PRS, which will result in unnecessary power consumption. Therefore, how to notify idle-state or inactive-state UEs of the starting, stopping, or updating of the configuration information of PRS, or the availability of PRS is a problem that needs to be solved.

[0143] To solve the above problems, the application provides a method for notifying a terminal of configuration change of a positioning reference signal without changing system information, which comprises: a method for network-side equipment initiated configuration update of a positioning reference signal, and / or UE initiated configuration update of a positioning reference signal, which will be described below.

[0144] 1. Network-side equipment initiated configuration update of a positioning reference signal

[0145] In the embodiments of the application, optionally, the positioning method further comprises: the terminal receiving first indication information in an idle state or an inactive state, and the first indication information comprises at least one of the following:

[0146] 1) availability information of the positioning reference signal or availability information of configuration information of the positioning reference signal;

[0147] The availability (availablility) can also be represented as on or off information of the positioning reference signal (or configuration information of the positioning reference signal).

[0148] 2) update information of configuration information (configuration information can also be referred to as assistance information) of the positioning reference signal;

[0149] The configuration information comprises at least one of the following: spatial relationship configuration, loss configuration, etc.

[0150] The positioning reference signal comprises at least one of the following: the uplink positioning reference signal and the downlink positioning reference signal. Optionally, the positioning reference signal comprises at least one of the following: PRS, uplink positioning reference signal (SRS for positioning), CSI-RS, TRS, SSB, preamble, etc.

[0151] In the embodiments of the application, the network-side equipment can determine whether to initiate configuration update of the positioning reference signal according to at least one of the following conditions:

[0152] On-demand PRS causes configuration update;

[0153] The UE maintains RRM measurement and reporting in an idle state or an inactive state, and the network-side equipment obtains the latest beam measurement result to update the configuration of spatial relationship and / or loss, etc.

[0154] In the embodiments of the application, optionally, after the terminal receives the first indication information in the idle state or the inactive state, the method further comprises:

[0155] if the first indication information indicates that the positioning reference signal is unavailable, the terminal assumes that the positioning reference signal does not exist, or the positioning reference signal is not transmitted, or the positioning reference signal is stopped transmitting, or the positioning reference signal is not transmitted, or the positioning reference signal is stopped transmitting;

[0156] or

[0157] if the first indication information indicates that the configuration information of the positioning reference signal is unavailable, the terminal assumes that the positioning reference signal corresponding to the configuration information of the positioning reference signal does not exist, or the positioning reference signal corresponding to the configuration information of the positioning reference signal is not transmitted, or the positioning reference signal corresponding to the configuration information of the positioning reference signal is stopped transmitting, or the positioning reference signal corresponding to the configuration information of the positioning reference signal is not transmitted, or the positioning reference signal corresponding to the configuration information of the positioning reference signal is stopped transmitting.

[0158] In an embodiment of the present application, optionally, if the terminal assumes that the positioning reference signal does not exist, or the positioning reference signal is not transmitted, or the positioning reference signal is stopped transmitting, the terminal does not perform measurement on the positioning reference signal.

[0159] In an embodiment of the present application, optionally, the update information of the configuration information of the positioning reference signal includes at least one of the following:

[0160] indication information of whether the configuration information of the positioning reference signal is updated;

[0161] updated configuration information of the positioning reference signal.

[0162] In an embodiment of the present application, optionally, the indication information for indicating whether the configuration information of the positioning reference signal is updated or the updated configuration information of the positioning reference signal includes at least one of the following:

[0163] turning on or turning off of the configuration information of the positioning reference signal;

[0164] increase or decrease of the bandwidth of the positioning reference signal;

[0165] increase or decrease of the period of the positioning reference signal;

[0166] change of muting configuration of the positioning reference signal;

[0167] change of spatial relationship configuration of the positioning reference signal;

[0168] change of path loss configuration of the positioning reference signal.

[0169] Turning the positioning reference signal configuration information on or off refers to setting a switch to control the positioning reference signal configuration information on or off. For example, if the switch is set to 'on', the positioning reference signal configuration information is enabled; if it is set to 'off', the positioning reference signal configuration information is disabled. Of course, 'on or off' can also be expressed as 'enable' or 'not enable'.

[0170] In this embodiment of the present application, optionally, the positioning reference signal indicated by the first indication information has one of the following granularities:

[0171] One or more groups of positioning reference signals corresponding to the configuration information of the positioning reference signals;

[0172] one or more positioning reference signal resources;

[0173] One or more positioning reference signal resource sets;

[0174] Positioning reference signals under one or more TRPs; such as PRS.

[0175] Positioning reference signals in one or more frequency layers, such as PRS.

[0176] Positioning reference signals in all frequency layers, such as PRS.

[0177] In the embodiment of the present application, optionally, the terminal receiving the first indication information in the idle state or the inactive state includes at least one of the following:

[0178] 1) The terminal obtains the first indication information in the paging PDCCH;

[0179] In an embodiment of the present application, optionally, the first indication information is represented by a short message bit in a paging PDCCH, or by a reserved bit in a paging PDCCH.

[0180] 2) The terminal obtains the first indication information in the paging PDSCH scheduled by the paging PDCCH;

[0181] In one embodiment, optionally, the terminal obtains indication information of whether the configuration information of the positioning reference signal is updated in a paging PDCCH, and obtains updated configuration information of the positioning reference signal in a paging PDSCH scheduled by the paging PDCCH.

[0182] Optionally, the paging PDCCH is a PDCCH that schedules a paging message. That is, the first indication information is carried in the paging PDSCH only if the paging PDCCH schedules a paging message.

[0183] 3) the terminal obtains the first indication information in a paging early indication (PEI);

[0184] The paging early indication can be interpreted as a paging wake-up signal.

[0185] 4) the terminal obtains the first indication information in a random access procedure or a small data transmission procedure; for example, in a random access procedure or a small data transmission procedure targeting mobile terminated (MT) data transmission;

[0186] The message of the random access procedure is carried through a random access (RACH) procedure and contains one of the following: Msg2, Msg4, MsgB.

[0187] 5) the terminal obtains the first indication information in a broadcast message;

[0188] The broadcast message is, for example, a SIB message.

[0189] 6) the terminal obtains the first indication information in an RRC release message;

[0190] In an embodiment of the application, optionally, the obtaining of the first indication information in the RRC release message comprises:

[0191] The terminal obtains the first indication information in the RRC release message after reporting location-related information, to indicate the configuration of subsequent positioning reference signals.

[0192] 7) the terminal obtains the first indication information in a PDCCH and / or PDSCH according to a downlink monitoring opportunity and / or monitoring window configured by a network-side device;

[0193] In an embodiment, optionally, the obtaining of the first indication information in a PDCCH and / or PDSCH according to a downlink monitoring opportunity and / or monitoring window configured by a network-side device comprises:

[0194] The terminal obtains the first indication information in a C-RNTI scrambled PDCCH and / or in a PDSCH scheduled by a C-RNTI scrambled PDCCH.

[0195] Optionally, in the embodiments of the present application, the first indication information is obtained from the C-RNTI scrambled PDCCH and / or the PDSCH scheduled by the C-RNTI scrambled PDCCH, and the first indication information includes:

[0196] After the terminal reports the location related information, the terminal obtains the indication information about whether the configuration information of the positioning reference signal is updated from the C-RNTI scrambled PDCCH, and obtains the updated configuration information of the positioning reference signal from the PDSCH scheduled by the C-RNTI scrambled PDCCH.

[0197] Optionally, the first indication information is obtained from the PDSCH scheduled by the C-RNTI scrambled PDCCH.

[0198] Optionally, the first indication information is obtained from the PDSCH scheduled by the C-RNTI scrambled PDCCH.

[0199] Optionally, the C-RNTI scrambled PDCCH and / or the PDSCH scheduled by the C-RNTI scrambled PDCCH is after the reporting or the contention resolution success message and before the RRC release message.

[0200] 8) The first indication information is obtained from the PDSCH scheduled by the downlink scheduling resource (such as the semi-persistent scheduling (SPS) resource) configured by the network side device.

[0201] Optionally, in the embodiments of the present application, the first indication information further includes the indication information about whether to enter the connected state and update the configuration information of the positioning reference signal.

[0202] Optionally, in the embodiments of the present application, the terminal receives the first indication information in the idle state or the inactive state, and the terminal further includes:

[0203] If the first indication information includes the indication information about entering the connected state and updating the configuration information of the positioning reference signal, or the first indication information does not include the indication information about not entering the connected state to update the configuration information of the positioning reference signal, the terminal initiates random access to enter the connected state and update the configuration information of the positioning reference signal.

[0204] Optionally, the first indication information does not include the indication information about not entering the connected state to update the configuration information of the positioning reference signal, which can be a default configuration or a default configuration.

[0205] Optionally, in some embodiments of the present application, after the terminal receives the first indication information in the idle state or the inactive state, the terminal further includes:

[0206] If the first indication information comprises an indication that the terminal does not enter the connected state to update the configuration information of the positioning reference signal, the terminal sends first feedback information, wherein the first feedback information is used to indicate that the first indication information has been received.

[0207] In some embodiments of the present application, the terminal receives the first indication information in the idle state or the inactive state, and the terminal further comprises the following steps:

[0208] The terminal sends first feedback information, wherein the first feedback information is used to indicate that the first indication information has been received.

[0209] That is, the terminal can send the first feedback information when the first indication information comprises an indication that the terminal does not enter the connected state to update the configuration information of the positioning reference signal, or the terminal can directly send the first feedback information without the first indication information.

[0210] Optionally, the first indication information or the first feedback information is an LPP (LTE position protocol) message, which can be carried in a NAS message and further carried in an RRC message (carried by SRB0 or SRB2).

[0211] In some embodiments of the present application, the first feedback information is sent in the idle state or the inactive state, or the terminal enters the connected state (such as initiating an RRC connection establishment or recovery process to enter the connected state) after the first feedback information is sent.

[0212] In some embodiments of the present application, the first feedback information is sent in the idle state or the inactive state, which comprises the following steps: the first feedback information is sent in the form of SDT (such as RA-SDT), or the first feedback information is sent through a network (pre-) configured uplink resource (such as PUSCH or PUCCH). The SDT method can also be referred to as uplink SDT, and the SDT method can include at least one of the following: control plane SDT, user plane SDT, RACH-based SDT, and configure grant-based SDT.

[0213] In one embodiment, the first feedback information is carried in the RRCresumerequest message in the form of SDT.

[0214] Optionally, all the feedback methods in the form of SDT in some embodiments of the present application are consistent with the method of reporting location-related information by the UE.

[0215] Optionally,

[0216] Optionally, the first indication information further comprises at least one of the following information:

[0217] whether to request the terminal to send the first feedback information;

[0218] indicating the terminal to send the first feedback information in the connected state or not to enter the connected state to send the first feedback information;

[0219] resource configuration information of the first feedback information, such as time-frequency position, etc.

[0220] In the embodiments of the present application, optionally, the first feedback information includes at least one of the following:

[0221] feedback reason (such as the reason for initiating SDT), the feedback reason includes at least one of the following: availability indication feedback of the positioning reference signal, configuration information update feedback of the positioning reference signal, update feedback of the configuration information of the positioning reference signal initiated by the network side device; in an implementation manner, optionally, the feedback reason is carried through the recovery reason in the RRC recovery request message.

[0222] update response of the configuration information of the positioning reference signal, the update response is used to respond to whether the configuration information of the positioning reference signal in the first indication information has an indication information of update.

[0223] In the embodiments of the present application, optionally, only the feedback reason and / or the update response of the configuration information of the positioning reference signal are carried in the first feedback information. That is, no other uplink data is carried in the first feedback information except the feedback reason and / or the update response of the configuration information of the positioning reference signal.

[0224] In the embodiments of the present application, optionally, after the terminal sends the first feedback information, the terminal further includes: the terminal receives updated configuration information of the positioning reference signal.

[0225] In the embodiments of the present application, optionally, the terminal receiving the updated configuration information of the positioning reference signal includes one of the following modes:

[0226] the terminal obtains the updated configuration information of the positioning reference signal in the RRC release message;

[0227] the terminal obtains the updated configuration information of the positioning reference signal in the PDSCH scheduled by the C-RNTI scrambled PDCCH; optionally, the C-RNTI scrambled PDCCH and the PDSCH scheduled thereby are after the first feedback information or the successful contention resolution message and before the RRC release message.

[0228] the terminal receives the updated configuration information of the positioning reference signal after entering the connected state.

[0229] Optionally, the terminal receives the updated configuration information of the positioning reference signal comprises: receiving the updated configuration information of the positioning reference signal before the first timer expires.

[0230] In the connected state, without configuring the measurement gap, the UE can only measure the PRS with the same numerology as the active DL BWP within the active DL BWP range. However, in the idle state or inactive state, if the UE is configured with an initial DL BWP, and the UE needs to receive the positioning reference signal, the UE behavior needs to be solved.

[0231] Optionally, in the embodiment of the application, receiving and measuring the downlink positioning reference signal comprises:

[0232] If the terminal is configured with an initial downlink BWP, the terminal performs one of the following:

[0233] 1) receiving the downlink positioning reference signal within the initial downlink BWP;

[0234] That is, the terminal does not expect to receive the downlink positioning reference signal outside the initial downlink BWP.

[0235] 2) receiving the downlink positioning reference signal with the same numerology as the initial downlink BWP within the initial downlink BWP; wherein the numerology comprises at least one of the following: subcarrier spacing (SCS), cyclic prefix (CP) type.

[0236] That is, the terminal does not expect to receive the downlink positioning reference signal with different numerology within the initial downlink BWP.

[0237] 3) If the downlink positioning reference signal and the first signal are repeated, collided or transmitted in the same symbol, the terminal does not receive the downlink positioning reference signal, and the first signal comprises at least one of the following: SIB1, other SIB (Other SIB) in addition to the SIB1, Msg2, MSg4, MsgB, PDCCH scheduling SIB1, SSB;

[0238] That is, the terminal does not expect to receive the downlink positioning reference signal and the first signal in the same symbol. Or when the downlink positioning reference signal and the first signal are repeated (or collided or transmitted) in the same symbol, the terminal is not required (not expected) to process the downlink positioning reference signal.

[0239] 4) the terminal receives the downlink positioning reference signal outside (or not within) the initial downlink BWP;

[0240] Optionally, if the downlink positioning reference signal is located outside the initial downlink BWP, and / or the parameter configuration of the downlink positioning reference signal is different from that of the initial downlink BWP, the terminal receives the downlink positioning reference signal outside the initial downlink BWP.

[0241] Optionally, the terminal receiving the downlink positioning reference signal outside the initial downlink BWP includes: if an enable indication sent by the network side device is received, the terminal receives the downlink positioning reference signal outside the initial downlink BWP (or does not receive the downlink positioning reference signal in the initial downlink BWP). For example: when the enable indication is received, the terminal can not receive the downlink positioning reference signal in the initial downlink BWP (or receive the downlink positioning reference signal outside the initial downlink BWP); otherwise, the terminal can only receive the downlink positioning reference signal in the initial downlink BWP (or the terminal cannot receive the downlink positioning reference signal outside the initial downlink BWP).

[0242] Optionally, the terminal does not expect to receive and send other signals or data in the time period of receiving the downlink positioning reference signal, except at least one of the following signals: PRS, reference signal for RRM measurement, and signal for random access process.

[0243] Optionally, the time period of receiving the downlink positioning reference signal can be a measurement interval in an idle state or an inactive state, and can be obtained by at least one of network indication, protocol agreement and terminal selection.

[0244] Optionally, the terminal receiving the downlink positioning reference signal outside the initial downlink BWP includes: if the downlink positioning reference signal is repeated or collides or transmitted with a first signal in the same symbol, the terminal receives the downlink positioning reference signal and the first signal at the same time, wherein the downlink positioning reference signal is outside the initial downlink BWP, and the first signal is inside the initial downlink BWP. The first signal includes at least one of the following: SIB1, other SIB (Other SIB) except the SIB1, Msg2, Msg4, MsgB, PDCCH scheduling SIB1, and SSB. Optionally, the terminal receiving the downlink positioning reference signal and the first signal in the same symbol belongs to the terminal capability, and the terminal needs to report the capability to the network device.

[0245] 5) The terminal performs BWP switching according to the indication of the network side device, the protocol agreement or the selection of the terminal, and receives the downlink positioning reference signal on the switched BWP.

[0246] Optionally, if the downlink positioning reference signal is located outside the initial downlink BWP, and / or the parameter configuration of the downlink positioning reference signal is different from that of the initial downlink BWP, the terminal performs BWP switching according to the indication of the network side device, the protocol agreement or the selection of the terminal, and receives the downlink positioning reference signal on the switched BWP.

[0247] Currently, in the method of random access small data transmission (RA-SDT), the UE is allowed to listen to the physical downlink control channel (PDCCH) scrambled by C-RNTI in a period between the successful contention resolution and the RRC release message. In the embodiments of the present application, when the UE reports the positioning data, it is indicated whether there is subsequent data transmission and the size of the data, etc., so that the network side device schedules the subsequent positioning data by the PDCCH scrambled by C-RNTI.

[0248] Optionally, the C-RNTI in the present application can also be replaced by other RNTIs, including but not limited to I-RNTI (RNTI in inactive state) or positioning dedicated RNTI, etc.

[0249] Optionally, in the embodiments of the present application, the position-related information includes second indication information, which is used to indicate the information of subsequent data transmission, and is used to assist the network side device to perform subsequent positioning process, such as assisting the network side device to confirm whether subsequent uplink data transmission needs to be scheduled.

[0250] The information of subsequent data transmission includes at least one of the following:

[0251] Whether there is subsequent data transmission;

[0252] The size of subsequent data transmission;

[0253] The period of subsequent data transmission;

[0254] Whether the ACK feedback is needed for subsequent data transmission;

[0255] The service characteristics of subsequent to-be-transmitted data;

[0256] The type of subsequent to-be-transmitted data, which includes at least one of the following: positioning-related data or non-positioning-related data (such as service data), control plane data or user plane data, signaling radio bearer (SRB1, SRB1 or SRB0), non-access layer (NAS) or data radio bearer (DRB) data.

[0257] Optionally, after the position-related information is reported, the subsequent to-be-transmitted data is transmitted on the PUSCH scheduled by the PDCCH configured by the network side device.

[0258] Optionally, the PDCCH configured by the network-side device is scrambled by a C-RNTI.

[0259] Optionally, the PDCCH configured by the network-side device and the PUSCH scheduled by the PDCCH configured by the network-side device are located after the position-related information reporting or contention resolution message and before the RRC release message.

[0260] Optionally, the PDCCH configured by the network-side device carries a type indication of the scheduled uplink data; and the subsequent to-be-transmitted data corresponding to the type indicated by the type indication is transmitted on the PUSCH scheduled by the PDCCH configured by the network-side device.

[0261] The subsequent to-be-transmitted data corresponding to the type indicated by the type indication is transmitted on the PUSCH scheduled by the PDCCH configured by the network-side device.

[0262] 2. Configuration update of the positioning reference signal initiated by the terminal side

[0263] In the embodiments of the present application, optionally, the positioning method further includes: the terminal sends third indication information, the third indication information being used to indicate that the configuration information of the positioning reference signal needs to be updated, so as to inform the network-side device that the configuration information of the downlink positioning reference signal and / or the uplink positioning reference signal needs to be updated. The positioning reference signal includes at least one of the uplink positioning reference signal and the downlink positioning reference signal.

[0264] Optionally, the configuration information includes at least one of the following: spatial beam information and loss configuration information.

[0265] Optionally, the third indication information is sent in an SDT mode or after the terminal enters a connected state (such as the terminal initiates an RRC connection establishment or connection recovery process to enter a connected state).

[0266] Optionally, the third indication information further includes a reason for sending the third indication information (such as a reason for initiating SDT), and the reason includes at least one of the following: the terminal initiates the update of the configuration information of the positioning reference signal, the update of the configuration information of the positioning reference signal, and the unavailability of the configuration information of the positioning reference signal.

[0267] Optionally, the positioning reference signal indicated by the third indication information is one of the following granularities:

[0268] one or more groups of positioning reference signals under the configuration information of the positioning reference signal;

[0269] one or more positioning reference signal resources;

[0270] one or more positioning reference signal resource sets;

[0271] one or more positioning reference signals under one or more TRPs;

[0272] one or more positioning reference signals under one or more frequency layers;

[0273] one or more positioning reference signals under all frequency layers.

[0274] Optionally, the third indication information further comprises at least one of the following to assist the network-side device in maintaining the configuration information of the downlink and / or uplink positioning reference signal in the idle state or inactive state, such as spatial beam information and / or loss configuration information:

[0275] RRM measurement results of the serving cell;

[0276] RRM measurement results of the neighboring cell;

[0277] measurement results of the positioning reference signal of the serving cell, including but not limited to at least one of CSI-RS, SSB, PRS, and TRS;

[0278] measurement results of the positioning reference signal of the neighboring cell, including but not limited to at least one of CSI-RS, SSB, PRS, and TRS.

[0279] wherein the RRM measurement results can be cell level measurement results and / or beam level measurement results.

[0280] Optionally, the measurement results comprise at least one of the following: reference signal (SSB and / or CSI-RS) identification, measurement results of N best beams above a threshold, indication of N best beams above a threshold, measurement results of a best beam, indication of a best beam, measurement results of N beams with the strongest first-arrival-path RSRP, indication of N beams with the strongest first-arrival-path RSRP, N being agreed by a protocol, indicated by the network-side device, or selected by the terminal.

[0281] Optionally, the terminal sending the third indication information comprises: the terminal sending the third indication information when at least one of the following conditions is met:

[0282] 1) if the terminal detects that the adjustment of the tracking area exceeds a first tracking area threshold, and the terminal is not in a connected state, the terminal sends the third indication information;

[0283] the adjustment of the tracking area exceeding the first tracking area threshold, i.e., the tracking area changes.

[0284] Optionally, the adjustment of the tracking area can be obtained according to at least one of the following ways:

[0285] Terminal automatically adjusts tracking area;

[0286] N-TA-offset change (n-Timing Advance Offset indication) from network side device indication, such as SIB1;

[0287] TA command indication from network side device indication, such as Msg2 or MsgB or other information.

[0288] 2) If the terminal detects that the difference between the first measurement value and the previous first measurement value exceeds the first measurement threshold, and the terminal does not enter the connected state, send the third indication information, the first measurement value includes at least one of the following: SSB measurement information, paging or Msg2 or Msg4 or MsgB measurement information, and measurement information of the positioning reference signal;

[0289] The first measurement value includes at least one of the following:

[0290] SSB measurement information, such as RSRP, RSRQ and / or SSB timing measurement information;

[0291] Paging, Msg2, Msg4 or MsgB measurement information, such as RSRP and / or RSRQ;

[0292] PRS measurement information, such as RSRP, RSRQ and / or TDOA.

[0293] Wherein, the SSB measurement information can be cell-level or beam-level measurement information. The PRS measurement information can be TRP-level or PRS resource-level or PRS resource set-level measurement information.

[0294] 3) If the terminal detects that the second timer (such as Time Alignment Timer) expires, and the terminal does not enter the connected state, send the third indication information;

[0295] 5) If the terminal's resident cell switches, send the third indication information;

[0296] 5) If the terminal's resident cell switches, and the downlink positioning reference signal cannot be received, the location-related information cannot be reported, or the uplink positioning reference signal cannot be sent, send the third indication information;

[0297] The reason that the downlink positioning reference signal cannot be received, the location-related information cannot be reported, or the uplink positioning reference signal cannot be sent includes one of the following:

[0298] a collision with a paging, a random access message, a system message, an SSB, an uplink positioning reference signal (SRS), a downlink positioning reference signal (PRS), or a location related information is dropped or ignored;

[0299] an IDRX configuration change, resulting in a change of behavior of the UE to transmit an uplink positioning reference signal, to measure a downlink positioning reference signal, or to report a location related information.

[0300] 6) transmitting the third indication information if the terminal moves out of a preconfigured validity area of the configuration information of the positioning reference signal.

[0301] Optionally, the preconfigured validity area of the configuration information of the positioning reference signal is a certain cell, a list of cells, or a region covered by a certain SSB or SSBs.

[0302] In some embodiments of the present application, after the terminal transmits the third indication information, the terminal further receives first indication information in an idle state or an inactive state, and the first indication information includes at least one of the following:

[0303] availability information of the positioning reference signal or availability information of the configuration information of the positioning reference signal;

[0304] update information of the configuration information of the positioning reference signal;

[0305] The positioning reference signal includes at least one of the following: the uplink positioning reference signal and the downlink positioning reference signal.

[0306] Optionally, after the terminal transmits the third indication information, the terminal further includes:

[0307] The terminal starts a third timer, and receives the first indication information before the third timer expires.

[0308] In embodiments of the present application, the reported location related information includes:

[0309] reported measurement information, and the measurement information includes at least one of the following:

[0310] a RRM measurement result of a serving cell;

[0311] a RRM measurement result of a neighboring cell;

[0312] a measurement result of a positioning reference signal of a serving cell;

[0313] a measurement result of a positioning reference signal of a neighboring cell.

[0314] The measurement information is reported to assist a network side device in maintaining configuration information of a downlink positioning reference signal and / or an uplink positioning reference signal in an idle state or an inactive state, and the configuration information includes but is not limited to: spatial beam information and / or loss configuration information, and the like.

[0315] Optionally, the measurement information is reported through an SDT mode (for example, through a CG-based SDT mode) or is reported in a connected state (for example, the UE initiates an RRC connection establishment or recovery process and enters the connected state).

[0316] Optionally, the terminal periodically reports the measurement information.

[0317] Optionally, before the terminal periodically reports the measurement information, the method further includes:

[0318] The terminal receives a reporting configuration of the measurement information, and the reporting configuration includes but is not limited to at least one of the following:

[0319] A reporting period;

[0320] A period offset;

[0321] A number of periods;

[0322] A content of a reported measurement result, such as RSRP, and the like.

[0323] A cell identity associated with performing RRM measurement, and the like.

[0324] Optionally, the terminal receives the reporting configuration of the measurement information includes at least one of the following:

[0325] The terminal obtains the reporting configuration of the measurement information in a broadcast message;

[0326] The terminal obtains the reporting configuration of the measurement information in an RRC dedicated message;

[0327] The terminal obtains the reporting configuration of the measurement information in an RRC release message.

[0328] Optionally, the uplink positioning reference signal includes: an aperiodic SRS or a semi-persistent SRS.

[0329] In the method based on random access small data transmission (RA-SDT) mentioned in the above embodiments, the UE is allowed to listen to a physical downlink control channel (PDCCH) scrambled by a C-RNTI in a period between a successful contention resolution and an RRC release message. In the embodiments of the present application, the PDCCH scrambled by the C-RNTI is used to trigger the transmission of an aperiodic SRS to assist the network device in completing uplink positioning measurement.

[0330] Optionally, the sending of the aperiodic SRS comprises at least one of:

[0331] The aperiodic SRS is triggered by a PDCCH scrambled by a C-RNTI to be sent;

[0332] The aperiodic SRS is sent after a successful contention resolution and before an RRC release message.

[0333] This scheme is applicable to event-triggered positioning, such as an event occurring, triggering the UE to send an uplink positioning request and an aperiodic SRS trigger request to the network side device. After receiving the request, the network side device triggers the sending of the aperiodic SRS after a successful contention resolution and before RRC release signaling.

[0334] Optionally, the sending of the semi-persistent SRS comprises at least one of:

[0335] The semi-persistent SRS is activated by a PDSCH (such as a MAC CE carried by the PDSCH) scheduled by the network side device to assist the network side device in completing uplink positioning measurement;

[0336] The semi-persistent SRS is received after a successful contention resolution and before an RRC release message.

[0337] Optionally, the PDSCH is scheduled by a PDCCH scrambled by a C-RNTI.

[0338] Optionally, the semi-persistent SRS is valid after a successful contention resolution and before an RRC release message.

[0339] Optionally, before sending the uplink positioning reference signal, the terminal further comprises: sending request information by an SDT mode (such as a RA-SDT mode), the request information being used to request the network side device to trigger the aperiodic SRS or activate the semi-persistent SRS, the request information comprising at least one of:

[0340] An aperiodic SRS trigger request or a semi-persistent SRS activation request;

[0341] An uplink positioning request;

[0342] Event information.

[0343] The event information comprises but is not limited to: a region event, an action event, etc. The region event refers to the UE detecting that it enters, leaves or is located in a specified target region range (such as a region cell list / RNA / TAC). The action event refers to the UE detecting that it moves by a certain predefined linear distance from a previous position.

[0344] Optionally, the request information is carried by an RRC resume request message.

[0345] Optionally, the request message is carried by a resume cause in the RRC resume request message, such as a-SRS request, sp-SRS request.

[0346] Optionally, the request information further includes indication information of whether the network side device needs to feed back. For example, when the request information contains the indication information of whether the network side device needs to feed back, the UE will then receive the feedback of the network side device, indicating that the network side device can trigger the aperiodic SRS or the semi-persistent SRS, or the network side device cannot trigger the aperiodic SRS or the semi-persistent SRS.

[0347] Optionally, the request information is sent in the SDT mode, including that when an event occurs, the request information is sent in the SDT mode, the event including but not limited to at least one of the following: a region event, an action event.

[0348] Optionally, the request information sent in the SDT mode further includes:

[0349] Receiving second feedback information sent by the network side device, the second feedback information including indication information of whether the network side device triggers the aperiodic SRS or activates the semi-persistent SRS.

[0350] Optionally, the second feedback information is carried by an RRC release message, or is carried by a PDCCH or a PDSCH, and is received after the contention resolution succeeds and before the RRC release signaling.

[0351] Optionally, the positioning method further includes receiving configuration information of the aperiodic SRS or the semi-persistent SRS, the configuration information being carried by one of the following: system information, previous RRC release message, and previous RRC dedicated message.

[0352] In the embodiments of the present application, optionally, the positioning method further includes that the terminal sends fourth indication information, the fourth indication information being used to indicate uplink positioning reference signal timing change (such as SRS timing change) to assist the network device in accurately measuring the uplink positioning reference signal and accurately positioning.

[0353] Optionally, the terminal sending the fourth indication information includes one of the following:

[0354] The terminal sends the fourth indication information in the SDT mode (such as in the CG-based SDT and / or RACH-based SDT mode);

[0355] The terminal enters a connected state (e.g., the UE initiates an RRC connection establishment / resume procedure to enter the connected state) and sends the fourth indication information.

[0356] Optionally, the fourth indication information is carried by an RRC resume request message.

[0357] Optionally, the fourth indication information is carried by a resume cause in the RRC resume request message.

[0358] Optionally, the fourth indication information further includes:

[0359] a change in uplink positioning reference signal timing;

[0360] a cause of the change in uplink positioning reference signal timing, the cause including at least one of: cell reselection or cell handover of the terminal, automatic adjustment of uplink positioning reference signal timing by the terminal, and reception of a timing advance command by the terminal from a camped cell.

[0361] Optionally, the terminal sending the fourth indication information includes:

[0362] The fourth indication information is sent when at least one of the following conditions is met: cell reselection or cell handover of the terminal, automatic adjustment of uplink positioning reference signal timing by the terminal, and reception of a timing advance command by the terminal from a camped cell.

[0363] Optionally, the cause of the change in uplink positioning reference signal timing is also event information triggering the UE to indicate the change in uplink positioning reference signal timing.

[0364] In an embodiment of the present application, optionally, the UE indicates the change in uplink positioning reference signal timing to a serving gNB (or a camped gNB) and / or a location server. The serving gNB (or the camped gNB) and / or the location server then sends the information to other gNBs participating in positioning.

[0365] Optionally, when the change in timing exceeds a certain threshold, the UE indicates the change in uplink positioning reference signal timing to a network device. The threshold can be determined by at least one of agreement, network indication / pre-configuration, and terminal selection.

[0366] Generally, the UE in idle state or inactive state will periodically wake up to listen to the paging message, and this period is the IDRX period. In order to save power, the UE may need to measure the downlink positioning reference signal, or send the uplink positioning reference signal, or report the location related information in the vicinity of the paging, so as to reduce the number of UE wake-up and save power consumption. Therefore, it is necessary to define the relationship between the UE measuring the downlink positioning reference signal, or sending the uplink positioning reference signal, or reporting the location related information, and the IDRX. In addition, with the switching of the camping cell, the IDRX configuration may change, and the camping cell switching information needs to be reported to the network side device to assist the network side device to determine the UE measurement and sending behavior in the new camping cell. At the same time, the gNB in the positioning area needs to send its IDRX configuration to the location server to help the location server to confirm the subsequent behavior.

[0367] Based on the above description, optionally, the positioning method further comprises: the terminal sending fifth indication information, the fifth indication information being used to indicate the camping cell change, so as to assist the network side device to perform subsequent resource allocation or positioning process.

[0368] Optionally, the serving gNB (or camping gNB) can obtain the information of the camping cell change of the UE, and the camping cell change information can also be sent by the serving gNB (or camping gNB) to the location server.

[0369] Optionally, the terminal sending the fifth indication information comprises one of the following:

[0370] The terminal sends the fifth indication information through the SDT mode (such as through the CG-based SDT and / or RACH-based SDT mode);

[0371] The terminal sends the fifth indication information when entering the connected state (such as the UE initiating the RRC connection establishment or recovery process to enter the connected state).

[0372] Optionally, the fifth indication information is carried through the RRC recovery request message.

[0373] Optionally, the fifth indication information is carried through the recovery reason in the RRC recovery request message.

[0374] Optionally, the fifth indication information further comprises the identification information of the camping cell.

[0375] Optionally, the terminal sending the fifth indication information comprises: if the camping cell of the terminal is switched, the fifth indication information is sent. That is, the event of the UE camping cell change triggers the UE to send the fifth indication information.

[0376] Optionally, the positioning method further comprises: if the terminal switches the camped cell, and the terminal is unable to perform at least one of the following operations, the terminal initiates random access to enter a connected state or sends third indication information:

[0377] the terminal is unable to send an uplink positioning reference signal;

[0378] the terminal is unable to measure a downlink positioning reference signal;

[0379] the terminal is unable to report position-related information;

[0380] the terminal is unable to report position-related information;

[0381] Optionally, the terminal initiates random access to enter a connected state or sends third indication information, which can carry the above reasons.

[0382] Optionally, the reasons why the UE is unable to send an uplink positioning reference signal, and / or measure a downlink positioning reference signal, and / or the UE reports position-related information are as follows:

[0383] collision with paging, random access messages, system messages, SSB, etc., SRS, PRS, or positioning information is dropped or ignored;

[0384] IDRX configuration changes, causing the UE to change the behavior of sending an uplink positioning reference signal, measuring a downlink positioning reference signal, or reporting positioning-related information.

[0385] Optionally, the UE indicates the change of the camped cell to the serving gNB (or camped gNB) and / or the location server. The serving gNB (or camped gNB) and / or the location server then sends it to other gNBs involved in positioning.

[0386] In the embodiments of the present application, optionally, the terminal performs positioning operation in an idle state or an inactive state, which further comprises at least one of the following:

[0387] if the time domain position of the to-be-sent uplink positioning reference signal is more than a distance X (or exceeds the range of a time window X) from the paging occasion, the terminal ignores the to-be-sent uplink positioning reference signal;

[0388] if the time domain position of the downlink positioning reference signal is more than a distance X from the paging occasion, the terminal ignores the measurement of the downlink positioning reference signal;

[0389] if the time domain position of the position-related information reporting is more than a distance X from the paging occasion, the terminal ignores the reporting of the position-related information;

[0390] If the time domain position of the to-be-sent uplink positioning reference signal is more than distance X from the time domain position of the downlink positioning reference signal, the terminal ignores the to-be-sent uplink positioning reference signal.

[0391] Optionally, the X is indicated by a network side device, agreed by a protocol or selected by the terminal.

[0392] Optionally, the unit of X can be ms, s, slot.

[0393] Optionally, X is related to the IDRX period, such as half of the IDRX period, etc.

[0394] Optionally, the paging occasion is a paging occasion of a camped cell.

[0395] The gNB in the RNA (or RAN tracking area or positioning signal configuration effective area) can send the IDRX configuration information to the location server in advance. The IDRX configuration information includes but is not limited to: IDRX period, paging occasion position, paging frame position, IMSI of the UE, etc.

[0396] Before the gNB sends the above information, the gNB receives a request from the location server for the above IDRX configuration information.

[0397] The role of the location server obtaining the IDRX configuration information is as follows:

[0398] 1) To assist the location server in determining the assistance information for positioning, such as PRS configuration, so that the PRS configuration is more matched with the IDRX configuration, thereby saving power consumption.

[0399] 2) After the UE switches to a camped cell, the IDRX configuration changes, which will cause the UE to change the behavior of sending uplink positioning reference signals, measuring downlink positioning reference signals or reporting position related information. If the network side device knows the IDRX configuration in advance, then as soon as the network side device knows that the UE has switched to a camped cell, it can predict how the UE will change the behavior of sending uplink positioning reference signals, measuring downlink positioning reference signals or reporting position related information.

[0400] For example, due to the switching of the camped cell, some SRS occasions cannot be sent, so the location server can notify the neighboring gNB to release some SRS resources for positioning, thereby reducing resource waste. Or, due to the switching of the camped cell, some SRS occasions can send SRS, so the location server can notify the neighboring gNB to receive these SRS occasions at specific positions.

[0401] Further, in the downlink and uplink positioning, the spatial beam relation of the uplink PRS is related to the downlink PRS. That is, the UE can use the beam receiving the downlink PRS of a certain TRP to send the uplink PRS to the TRP.

[0402] Further, before sending the uplink PRS, the UE receives the configuration of the uplink PRS. Among them, at least one of the following configuration information in the configuration information can be recommended by the location server to the base station, and then configured by the base station to the UE: period, period offset, uplink PRS repetition configuration, duration of one period of uplink PRS, etc. Optionally, the period of the uplink PRS can be configured as an integer multiple of the period of the downlink PRS. Optionally, the configuration information is used to match the downlink PRS as much as possible to reduce the number of UE wake-ups in downlink and uplink positioning and save UE power consumption.

[0403] In the embodiments of the present application, optionally, the receiving and measuring the downlink PRS includes: receiving and measuring the downlink PRS according to the spatial beam relation between the downlink PRS and the synchronization signal block SSB.

[0404] Among them, the spatial beam relation between the downlink PRS and the synchronization signal block SSB is obtained from the spatial QCL relation between the downlink PRS and the SSB indicated by the network side device; or obtained from the default relation between the downlink PRS resource and the SSB actually transmitted in the SSB burst of the TRP where the downlink PRS resource is located.

[0405] The default relation is: in the PRS resource set of the TRP, there are N PRS resources, and the number of SSBs actually transmitted in the SSB burst is also N, then the PRS resource and the SSB have a one-to-one spatial relation. For example, the PRS resource of PRS resource ID 0 corresponds to the SSB of SSB index 0, the PRS resource of PRS resource ID 1 corresponds to the SSB of SSB index 1, and so on. Of course, the present application does not specially limit the PRS resource ID and the SSB index, and other corresponding relations can also be used.

[0406] Or, the default relationship is that the PRS resource set contains N PRS resources, and the actual number of SSBs transmitted in the SSB burst is M, M is an integer multiple of N (or M >= N). Then the N PRS resources can have a one-to-one spatial relationship with N SSBs in the M SSBs. The N SSBs can be continuous or discontinuous, and which N SSBs in M can be agreed by the protocol or indicated by the network.

[0407] The spatial QCL relationship of the downlink positioning reference signal and a certain SSB can mean that the downlink positioning reference signal is transmitted from the same transmission beam as the SSB.

[0408] Optionally, the default relationship of the downlink positioning reference signal resource and the SSB actually transmitted in the SSB burst (SSB burst) under the TRP where the downlink positioning reference signal resource is located can be used in the broadcasted positioning assistance data.

[0409] In the embodiments of the present application, the configuration, activation and / or update in downlink and uplink positioning in the idle state or active state are solved, so that the downlink and uplink positioning in the idle state or active state can be more effectively performed.

[0410] The embodiments of the present application also provide a positioning method, comprising:

[0411] The terminal performs a positioning operation in an idle state, an inactive state or a connected state, wherein the positioning operation comprises:

[0412] Reporting position-related information, the position-related information comprising an association relationship between a positioning measurement result and a timing error group, and / or an association relationship between an uplink positioning reference signal and a timing error group.

[0413] The association relationship is used to assist the network side device in positioning calculation, thereby reducing or eliminating the influence of the timing error group on the positioning accuracy and improving the positioning accuracy.

[0414] The association relationship between the positioning measurement result and the timing error group comprises one of the following: an association relationship between the positioning measurement result and a UE Rx TEG, an association relationship between the positioning measurement result and a UE RxTx TEG, and an association relationship between the positioning measurement result and {Rx TEG, Tx TEG}.

[0415] The association relationship between the uplink positioning reference signal and the timing error group comprises one of the following:

[0416] The association relationship between the uplink positioning reference signal and a UE Tx TEG, and the association relationship between the uplink positioning reference signal and a UE RxTx TEG,

[0417] The association between the uplink positioning reference signal and the UE {Rx TEG, Tx TEG}.

[0418] The measurement results and / or the uplink positioning reference signals in the same time error group have the same reception time error and / or transmission time error.

[0419] The association can be represented by the associated TEG identifier ID, or the downlink positioning reference signal measurement results and / or the uplink positioning reference signals of the same TEG are grouped, or represented in other ways.

[0420] Optionally, the UE indicating the association between the uplink positioning reference signal and the time error group also includes that the UE can also indicate the change of the TEG associated with the uplink positioning reference signal (such as SRS) to the network device. Optionally, taking SRS as an example, the change of the TEG can be that the TEG associated with a certain SRS instance in the SRS transmission process has changed compared with the TEG associated with the previous SRS instance, or the TEG associated with the SRS has changed compared with the TEG associated with the DL+UL positioning measurement result (such as Rx-Tx time difference) Txtiming (or SRS).

[0421] In the embodiments of the present application, optionally, in the downlink and uplink positioning method (DL+UL positioning method), the association between the uplink positioning reference signal and the time error group is included in the positioning measurement result.

[0422] The downlink and uplink positioning method (DL+UL positioning method) includes but is not limited to ECID, multi-RTT positioning method, etc.

[0423] In the method of the downlink and uplink positioning method (DL+UL positioning method), the UE can indicate the association between the positioning measurement result and the UE Rx TEG, and / or the association between the uplink positioning reference signal and the UE Tx TEG. In addition, since the downlink measurement and the uplink transmission are included in the downlink and uplink positioning method, the time error can be the sum of the downlink measurement error and the uplink transmission error.

[0424] Optionally, the UE can further indicate the association of the Rx TEGs with the Tx TEGs (i.e., the association of the positioning measurement results with the SRS transmissions) with the overall time error groups (e.g., with the RxTx TEGs) or the overall time errors. For example, the UE indicates the association of the positioning measurement results with two Rx TEGs (Rx TEG0, Rx TEG1) and the association of the uplink positioning reference signals with two Tx TEGs (Tx TEG0, Tx TEG1). The UE can further indicate the association of the two groups of Rx TEGs with the two groups of Tx TEGs after the combination or the association of the overall time errors. Different overall time error groups have different overall time error values. For example, the UE indicates that the overall error of Rx TEG0+Tx TEG0 and Rx TEG1+Tx TEG0 is the same (or the overall error is less than a certain threshold) or is in the same overall time error group 0; the UE indicates that Rx TEG0+Tx TEG1 is in the overall time error group 1; and the UE indicates that Rx TEG1+Tx TEG2 is in the overall time error group 2. The overall time error groups 0, 1, and 2 have different error values (or it is not assumed that the overall time error groups 0, 1, and 2 have error values less than a certain threshold).

[0425] Optionally, in the downlink and uplink positioning methods, the UE can indicate the association of the measurement results (e.g., Rx-Tx time difference) with the RxTx TEGs. An implementation is as follows:

[0426] In one RxTx TEG, the UE can indicate at least one group of {PRS resources, SRS resources} (combination of PRS resources and SRS resources, or combination of downlink positioning reference signal resources and uplink positioning reference signal resources), and the at least one group is in the same RxTx TEG or shares the same RxTx TEG ID. Among different groups, the PRS resources and the SRS resources are not in the same RxTx TEG (i.e., the PRS resources of group A and the SRS resources of group B are not in the same RxTx TEG). Among different groups, the PRS resources are used to determine the Rx time in the Rx-Tx time difference measurement; and the SRS resources are used to determine the Tx time in the Rx-Tx time difference measurement.

[0427] Optionally, when the TEG (such as Tx TEG or RxTx TEG) associated with SRS resource(s)A changes, the UE may indicate the change (for example, from RxTx TEG 0 to RxTx TEG 1) of the RxTx TEG associated with SRS resource(s)A and all PRS resources (i.e., one or more {PRS resources, SRS resource(s)A} combinations) in one or more {PRS resources, SRS resource} groups containing SRS resource(s)A.

[0428] Optionally, when the TEG (such as Rx TEG or RxTx TEG) associated with PRS resource(s)A changes, the UE indicates the change of the RxTx TEG associated with PRS resource(s)A and all SRS resources (i.e., one or more {PRS resource(s)A, SRS resources} combinations) in one or more {PRS resources, SRS resources} groups containing PRS resource(s)A (for example, from RxTx TEG 0 to RxTx TEG2).

[0429] Optionally, the UE reports the association between the positioning measurement result and the time error group in at least one of the following ways:

[0430] (1) The UE reports the association between measurement results of multiple downlink positioning reference signal resources (PRS resources) under a specific TRP and a time error group (e.g., UE Rx TEG). In the reported association, each time error group is associated with at least one measurement result of a positioning reference signal resource. When a first preset condition is met, the UE must report the measurement result and association of at least one positioning reference signal resource associated with a target time error group, where the target time error group is any one of multiple time error groups supported by the UE.

[0431] The first preset condition includes but is not limited to one of the following:

[0432] The quality of the measurement result of the downlink positioning reference signal resource associated with the target time error group exceeds a certain threshold; for example, the RSRP value of the first path exceeds a certain threshold;

[0433] The measurement result of the downlink positioning reference signal resource associated with the target time error group is a line-of-sight (LOS) measurement result, or the LOS probability of the measurement result of the downlink positioning reference signal resource associated with the target time error group is higher than a certain threshold;

[0434] The corresponding channel distributions of the downlink positioning reference signal resources associated with the multiple time error groups are similar, and the multiple time error groups are the target time error groups. The similar channel distributions are, for example, similar power delay spectrum distributions (for example, the relative positions of multiple paths in the power delay spectrum are similar or consistent).

[0435] The UE behavior described above can be determined by at least one of network indication, protocol agreement, and UE selection. For example, the network sets an ‘enable’ switch. When the ‘enable’ switch is indicated as ‘on’ (or present, or indicated as binary ‘1’, etc.), the UE needs to follow the UE behavior described above, otherwise the UE does not need to follow the UE behavior described above.

[0436] Optionally, in another implementation, when the first preset condition is met, the UE can report the measurement result of at least one positioning reference signal resource associated with the target time error group and the association relationship, and / or report the difference of the time error of the multiple target time error groups, and / or compensate the difference of the time error of the multiple target time error groups in the reported measurement result. The UE behavior can be determined by at least one of network indication, protocol agreement, and UE selection.

[0437] Optionally, the UE can report the measurement result of at least one positioning reference signal resource associated with the target time error group and the association relationship, and / or report the difference of the time error of the multiple target time error groups, and / or compensate the difference of the time error of the multiple target time error groups in the reported measurement result. The UE behavior can be determined by at least one of network indication, protocol agreement, and UE selection.

[0438] (ii) The UE reports the measurement result of the target downlink positioning reference signal resource (PRS resource) under a certain TRP and the association relationship with multiple time error groups (such as UE Rx TEG). In the case where the second preset condition is met, the terminal reports the target positioning measurement result and the association relationship with multiple TEGs;

[0439] The second preset condition includes but is not limited to at least one of the following:

[0440] The quality of the downlink positioning measurement result associated with multiple TEGs exceeds a certain threshold; for example, the RSRP value of the first path exceeds a certain threshold;

[0441] There are multiple TEGs associated with the downlink positioning measurement results, or the LOS probability of the downlink positioning measurement results is higher than a certain threshold.

[0442] When the terminal performs receive beam sweeping, different receive beams are associated with different TEGs, and the quality of the downlink positioning measurement results corresponding to multiple receive beams exceeds a certain threshold.

[0443] The multiple TEGs associated with the target positioning reference signal resource correspond to similar channel distributions. Similar channel distributions include, for example, similar power delay spectrum distributions (e.g., the relative positions of multiple paths in the power delay spectrum are similar or consistent).

[0444] The above UE behavior can be determined by at least one of network indication, protocol agreement, and UE selection. For example, the network sets an 'enable' switch. When the 'enable' switch is indicated as 'on' (or present, or indicated as binary '1', etc.), the UE needs to follow the above UE behavior, otherwise the UE does not need to follow the above UE behavior.

[0445] Optionally, when the first and / or second preset conditions are met, the UE can report the association relationship between the measurement results of multiple positioning reference signal resources and different time error groups, and / or report the association relationship between the measurement results of the positioning reference signal resources and different time error groups, and / or report the difference in time error of multiple time error groups, and / or compensate for the difference in time error of multiple time error groups in the reported measurement results. The UE behavior can be determined by at least one of network indication, protocol agreement, and UE selection.

[0446] Optionally, the UE can report the association relationship between the measurement results of multiple positioning reference signal resources and different time error groups, and / or report the association relationship between the measurement results of the positioning reference signal resources and different time error groups, and / or report the difference in time error of multiple time error groups, and / or compensate for the difference in time error of multiple time error groups in the reported measurement results. The UE behavior can be determined by at least one of network indication, protocol agreement, and UE selection.

[0447] In addition, in the scheme of the present application, when the network device is a base station, the base station (such as gNB) also needs to report the uplink positioning measurement results to the location server (such as LMF) after measuring the uplink positioning reference signal. The base station (such as gNB) reporting the uplink positioning measurement results further includes:

[0448] The gNB reports the association between the uplink positioning measurement result and the time error group, including: the UE reports the association between the measurement result of multiple uplink positioning reference signal resources (SRS resource) of the UE and the time error group (such as UE Tx TEG). In the reported association, each time error group (such as UE Tx TEG) is associated with at least one measurement result of the uplink positioning reference signal resource. When the third preset condition is met, the gNB must report the measurement result and the association of at least one uplink positioning reference signal resource associated with the target time error group, and the target time error group is any one of the multiple time error groups (such as UE Tx TEG) supported by the UE.

[0449] The third preset condition includes but is not limited to one of the following:

[0450] The quality of the measurement result of the uplink positioning reference signal resource associated with the target time error group exceeds a certain threshold; for example, the RSRP value of the first path exceeds a certain threshold;

[0451] The measurement result of the uplink positioning reference signal resource associated with the target time error group is a line-of-sight (LOS) measurement result, or the LOS probability of the measurement result of the downlink positioning reference signal resource associated with the target time error group is higher than a certain threshold;

[0452] The corresponding channel distributions of the uplink positioning reference signal resources associated with multiple time error groups are similar, and the multiple time error groups are the target time error group. The similar channel distribution is, for example, a similar power delay spectrum distribution (such as a similar or consistent relative position of multiple paths in the power delay spectrum).

[0453] The above gNB behavior can be determined by at least one of network indication (such as LMF), protocol agreement, and gNB implementation. For example, the network (LMF) sets an ‘enable’ switch. When the ‘enable’ switch is indicated as ‘on’ (or present, or indicated as binary ‘1’, etc.), the gNB needs to follow the above behavior, otherwise the gNB does not need to follow the above UE behavior.

[0454] Alternatively, in another implementation, when the third preset condition is met, the gNB can report the measurement result and the association of at least one uplink positioning reference signal resource associated with the target time error group, and / or report the time error difference of multiple target time error groups, and / or compensate for the time error difference of multiple target time error groups in the reported measurement result. The gNB behavior can be determined by at least one of network indication, protocol agreement, and UE selection.

[0455] Optionally, the gNB can report the measurement results and the association relationship of at least one uplink positioning reference signal resource associated with the target time error group, and / or report the difference of the time errors of multiple target time error groups, and / or compensate the difference of the time errors of multiple target time error groups in the reported measurement results. The gNB behavior can be determined by at least one of network indication, protocol agreement, and UE selection.

[0456] The first / second / third preset conditions can be determined by at least one of network indication, protocol agreement, and UE / base station selection.

[0457] The positioning method of the present application will be described below in combination with specific embodiments.

[0458] Embodiment one of the present application:

[0459] The present embodiment gives the process of network side device initiating positioning reference signal configuration update, including the following steps:

[0460] Step 1: In the on-demand PRS configuration, the LMF needs to update the on-demand PRS configuration information to multiple UEs, including UEs in connected state and multiple UEs in idle state or inactive state.

[0461] Step 2: The LMF sends the on-demand request information to the AMF, and the AMF sends it to a certain gNB.

[0462] Step 3: The gNB judges whether the request information size exceeds the threshold. If it does not exceed the threshold, go to step 4. If it exceeds the threshold, initiate the process of entering the connected state of the UE.

[0463] Step 4: The gNB sends a paging message carrying the positioning reference signal configuration update. The paging can be RAN-paging or SA-paging (core network paging).

[0464] Step 5: The UE has received the positioning reference signal configuration update indication, which includes: positioning reference signal update and indication that there is no need to enter the connected state.

[0465] Step 6: The UE needs to feedback that it has received the positioning reference signal configuration update through the uplink SDT, which is carried in the RRCresumerequest message, and the 'positioning reference signal configuration update feedback' is carried in the resumecause in the RRCresumerequest, indicating that the uplink SDT process is initiated to feedback the positioning reference signal configuration update.

[0466] Step 7: gNB receives the feedback in SDT from UE, sends the updated positioning reference signal configuration to UE through RRC release message.

[0467] Embodiment two of the present application:

[0468] The embodiment gives an embodiment of aperiodic SRS transmission.

[0469] Method one: UE sends a request to gNB.

[0470] Step 1: UE monitors the occurrence of an event, such as the occurrence of an action event or a region event, which triggers the UE to initiate a request for aperiodic SRS transmission.

[0471] Step 2: UE sends a request for aperiodic SRS to gNB through RA-SDT, and the request carries the reason: such as event information and / or uplink positioning request and / or aperiodic SRS transmission request.

[0472] Step 3: gNB receives the request from UE, and if it can trigger aperiodic SRS, it initiates the aperiodic SRS triggering process, otherwise it goes to step 4.

[0473] 3.1 gNB sends PDCCH to UE for triggering aperiodic SRS.

[0474] 3.2 gNB sends aperiodic SRS related information (such as aperiodic SRS transmission time) to the location server (through NRPPa), and then the location server sends aperiodic SRS related information to other gNBs participating in positioning. Alternatively, gNB sends aperiodic SRS related information to other gNBs participating in positioning (such as through Xn) interface.

[0475] Step 4: gNB sends a response to UE, which contains information that aperiodic SRS cannot be triggered, and the response can be carried by RRC release message.

[0476] Method two: UE sends a request to the location server LMF.

[0477] Step 1: UE monitors the occurrence of an event, such as the occurrence of an action event or a region event, which triggers the UE to initiate a request for aperiodic SRS transmission.

[0478] Step 2: UE sends a request for aperiodic SRS to the location server LMF through RA-SDT, and the request carries the reason: such as event information and / or uplink positioning request and / or aperiodic SRS transmission request.

[0479] Step 3: LMF receives the request from UE, and sends the request to gNB through NRPPa.

[0480] Step 4: If the gNB can trigger aperiodic SRS, the gNB initiates the aperiodic SRS triggering procedure. Otherwise, go to Step 5 or 6.

[0481] 4.1 The gNB sends PDCCH to the UE for triggering aperiodic SRS.

[0482] 4.2 The gNB sends aperiodic SRS related information (e.g. aperiodic SRS transmission time) to the location server (via NRPPa), and the location server sends the aperiodic SRS related information to other gNBs involved in positioning. Alternatively, the gNB sends aperiodic SRS related information to other gNBs involved in positioning (e.g. via Xn) interface.

[0483] Step 5: The gNB sends a response to the location server including the information that aperiodic SRS cannot be triggered, and the response can be carried by a NRPPa message.

[0484] 5.1 The location server sends the corresponding to the UE. This message can be a LPP message carried by a RRC release message.

[0485] Step 6: The gNB sends a response to the UE including the information that aperiodic SRS cannot be triggered, and the response can be carried by a RRC release message.

[0486] Please refer to Figure 7 , the embodiment of the application further provides a positioning method, comprising:

[0487] Step 71: The network side device performs a positioning operation, wherein performing the positioning operation comprises at least one of the following:

[0488] sending a downlink positioning reference signal to a terminal in an idle state or an inactive state;

[0489] receiving position related information reported by a terminal in an idle state or an inactive state;

[0490] measuring an uplink positioning reference signal sent by a terminal in an idle state or an inactive state.

[0491] Optionally, the network side device can be a base station or a location server.

[0492] Optionally, when the network device is a base station, the base station can send a downlink positioning reference signal to the terminal, and / or receive an uplink positioning reference signal, and / or receive location-related information reported by the terminal. Optionally, the base station can further send the location-related information reported by the terminal to a location server (for example, the location-related information is transmitted by the base station and finally reaches the location server). Optionally, after completing the reception or measurement of the uplink positioning reference signal, the base station can also send the measurement result of the uplink positioning reference signal to the location server. Here, the base station can be one of a serving base station (or a serving cell base station), a neighboring base station (or a neighboring cell base station), and a camping cell base station.

[0493] Optionally, when the network device is a location server, the location server can receive location-related information reported by the terminal and / or a measurement result of an uplink positioning reference signal measured by a base station.

[0494] Optionally, the method further comprises:

[0495] The network-side device sends first indication information to a terminal in an idle state or an inactive state, and the first indication information comprises at least one of the following:

[0496] Availability information of a positioning reference signal or availability information of configuration information of the positioning reference signal;

[0497] Update information of configuration information of the positioning reference signal;

[0498] The positioning reference signal comprises at least one of the following: the uplink positioning reference signal and the downlink positioning reference signal.

[0499] Optionally, the update information of the configuration information of the positioning reference signal comprises at least one of the following:

[0500] Indication information of whether the configuration information of the positioning reference signal is updated or not;

[0501] Updated configuration information of the positioning reference signal.

[0502] Optionally, the indication information of whether the configuration information of the positioning reference signal is updated or not or the updated configuration information of the positioning reference signal comprises at least one of the following:

[0503] Turning on or turning off of the configuration information of the positioning reference signal;

[0504] Increasing or decreasing of a bandwidth of the positioning reference signal;

[0505] Increasing or decreasing of a period of the positioning reference signal;

[0506] Changing of a muting configuration of the positioning reference signal;

[0507] a spatial relation configuration of the positioning reference signal changes;

[0508] a path loss configuration of the positioning reference signal changes.

[0509] Optionally, the positioning reference signal indicated by the first indication information is one of the following granularities:

[0510] one or more groups of the positioning reference signal corresponding to the configuration information of the positioning reference signal;

[0511] one or more positioning reference signal resources;

[0512] one or more sets of positioning reference signal resources;

[0513] the positioning reference signal under one or more TRPs;

[0514] the positioning reference signal under one or more frequency layers;

[0515] the positioning reference signal under all frequency layers.

[0516] Optionally, the first indication information is carried by at least one of the following ways:

[0517] carried in a paging PDCCH;

[0518] carried in a paging PDSCH scheduled by the paging PDCCH;

[0519] carried in a paging advance indication;

[0520] carried in a random access procedure or a small data transmission procedure;

[0521] carried in a broadcast message;

[0522] carried in an RRC release message;

[0523] carried in a PDCCH and / or a PDSCH corresponding to a downlink monitoring opportunity and / or a monitoring window configured by a network side device;

[0524] carried in a PDSCH scheduled by a downlink scheduling resource configured by a network side device.

[0525] Optionally, the first indication information is represented by a bit of a short message in a paging PDCCH, or represented by a reserved bit in a paging PDCCH.

[0526] Optionally, indication information of whether the configuration information of the positioning reference signal is updated is carried in a paging PDCCH, and the updated configuration information of the positioning reference signal is carried in a paging PDSCH scheduled by the paging PDCCH.

[0527] Optionally, the first indication information further comprises indication information of whether to enter a connected state and update configuration information of the positioning reference signal.

[0528] Optionally, the network-side device further comprises, after sending the first indication information to the terminal in the idle state or the inactive state:

[0529] The network-side device receives first feedback information sent by the terminal, the first feedback information being used to indicate that the first indication information has been received.

[0530] Optionally, the first feedback information comprises at least one of the following:

[0531] a feedback reason, the feedback reason comprising at least one of the following: availability indication feedback of the positioning reference signal, configuration information update feedback of the positioning reference signal, and update feedback of configuration information of the positioning reference signal initiated by the network-side device;

[0532] update response of the configuration information of the positioning reference signal, the update response being used to respond to indication information in the first indication information about whether the configuration information of the positioning reference signal is updated.

[0533] Optionally, the network-side device further comprises, after receiving the first feedback information sent by the terminal:

[0534] The network-side device sends updated configuration information of the positioning reference signal to the terminal.

[0535] Optionally, the updated configuration information of the positioning reference signal is carried in one of the following ways:

[0536] in an RRC release message;

[0537] in a PDSCH scheduled by a PDCCH scrambled by a C-RNTI;

[0538] in an RRC dedicated message.

[0539] Optionally, the location-related information comprises second indication information, the second indication information being used to indicate subsequent data transmission information, the subsequent data transmission information comprising at least one of the following:

[0540] whether there is subsequent data transmission;

[0541] a size of subsequent data transmission;

[0542] a period of subsequent data transmission;

[0543] whether ACK feedback is needed for subsequent data transmission;

[0544] service characteristics of the subsequent data to be transmitted;

[0545] a type of the subsequent data to be transmitted, the type comprising at least one of the following: positioning-related data or non-positioning-related data, control plane data or user plane data, signaling radio bearer, non-access stratum or data radio bearer data.

[0546] Optionally, the method further comprises:

[0547] receiving, by the network-side device, the subsequent data to be transmitted on the PDCCH-scheduled PUSCH configured by the network-side device.

[0548] Optionally, the method further comprises:

[0549] receiving, by the network-side device, third indication information sent by the terminal, the third indication information being used to indicate that configuration information of a positioning reference signal needs to be updated, the positioning reference signal comprising at least one of an uplink positioning reference signal and a downlink positioning reference signal.

[0550] Optionally, the third indication information further comprises a reason for sending the third indication information, the reason comprising at least one of the following: the terminal initiates an update of the configuration information of the positioning reference signal, the configuration information of the positioning reference signal needs to be updated, and the configuration information of the positioning reference signal is unavailable.

[0551] Optionally, the positioning reference signal indicated by the third indication information is one of the following granularity:

[0552] a positioning reference signal under configuration information of one or more groups of the positioning reference signal;

[0553] one or more positioning reference signal resources;

[0554] one or more sets of positioning reference signal resources;

[0555] a positioning reference signal under one or more TRPs;

[0556] a positioning reference signal under one or more frequency layers;

[0557] a positioning reference signal under all frequency layers.

[0558] Optionally, the third indication information further comprises at least one of the following:

[0559] an RRM measurement result of a serving cell;

[0560] an RRM measurement result of a neighboring cell;

[0561] a measurement result of a positioning reference signal of a serving cell;

[0562] measurement result of a positioning reference signal of a neighbor cell.

[0563] Optionally, the measurement result comprises at least one of: a reference signal identifier, measurement results of N best beams above a threshold, indications of N best beams above a threshold, a measurement result of a best beam, an indication of a best beam, measurement results of N beams with strongest first-arrival-path RSRP, indications of N beams with strongest first-arrival-path RSRP, N being agreed by a protocol, indicated by a network-side device, or selected by the terminal.

[0564] Optionally, after the network-side device receives the third indication information sent by the terminal, the network-side device further comprises:

[0565] sending first indication information to the terminal, the first indication information comprising at least one of:

[0566] availability information of a positioning reference signal or availability information of configuration information of the positioning reference signal;

[0567] update information of configuration information of a positioning reference signal;

[0568] wherein the positioning reference signal comprises at least one of: the uplink positioning reference signal and the downlink positioning reference signal.

[0569] Optionally, the location-related information comprises measurement information, the measurement information comprising at least one of:

[0570] a RRM measurement result of a serving cell;

[0571] a RRM measurement result of a neighbor cell;

[0572] a measurement result of a positioning reference signal of a serving cell;

[0573] a measurement result of a positioning reference signal of a neighbor cell.

[0574] Optionally, the measurement information is periodically reported by the terminal.

[0575] Optionally, the method further comprises:

[0576] the network-side device sending, to the terminal, a reporting configuration of the measurement information, the reporting configuration comprising at least one of:

[0577] a reporting period;

[0578] a period offset;

[0579] a number of periods;

[0580] a content of a reported measurement result;

[0581] performing RRM measurement associated cell identification.

[0582] Optionally, the reporting configuration of the measurement information is carried by at least one of the following ways:

[0583] in a broadcast message;

[0584] in an RRC dedicated message;

[0585] in an RRC release message.

[0586] Optionally, the uplink positioning reference signal comprises aperiodic SRS or semi-persistent SRS.

[0587] Optionally, before receiving the aperiodic SRS, the method further comprises:

[0588] sending trigger information to the terminal through PDCCH scrambled by C-RNTI to trigger the terminal to send the aperiodic SRS;

[0589] wherein the PDCCH scrambled by C-RNTI and / or the aperiodic SRS are sent before the RRC release message after successful contention resolution.

[0590] Optionally, before receiving the semi-persistent SRS, the method further comprises:

[0591] sending activation information to the terminal through PDSCH scheduled by the network side device to activate the terminal to send the semi-persistent SRS;

[0592] wherein the PDSCH scheduled by the network side device and / or the semi-persistent SRS are received before the RRC release message after successful contention resolution.

[0593] Optionally, the method further comprises:

[0594] receiving, by the network side device, request information sent by the terminal in an SDT manner, the request information being used to request the network side device to trigger the aperiodic SRS or activate the semi-persistent SRS, the request information comprising at least one of the following:

[0595] aperiodic SRS trigger request or semi-persistent SRS activation request;

[0596] uplink positioning request;

[0597] event information.

[0598] Optionally, the method further comprises:

[0599] receiving, by the network side device, fourth indication information sent by the terminal, the fourth indication information being used to indicate uplink positioning reference signal timing change.

[0600] Optionally, the fourth indication information further comprises:

[0601] a quantity of timing change of the uplink positioning reference signal;

[0602] a cause of the timing change of the uplink positioning reference signal, the cause comprising at least one of the following: cell camping of the terminal is switched or cell reselection, the terminal automatically adjusts the timing of the uplink positioning reference signal, and the terminal receives a timing advance command of the camping cell.

[0603] Optionally, the method further comprises:

[0604] the network side device receives fifth indication information sent by the terminal, the fifth indication information being used to indicate camping cell change.

[0605] Optionally, the fifth indication information further comprises identification information of the camping cell.

[0606] Optionally, the position related information reported by the terminal in the idle state or the inactive state comprises:

[0607] an association relationship between the positioning measurement result and the time error group, and / or an association relationship between the uplink positioning reference signal and the time error group.

[0608] Optionally, in the downlink and uplink positioning method, the association relationship between the uplink positioning reference signal and the time error group is contained in the positioning measurement result.

[0609] It should be noted that the positioning method provided in the embodiments of the present application can be executed by a positioning device, or a control module in the positioning device for executing the positioning method. In the embodiments of the present application, the positioning device is taken as an example to illustrate the positioning device provided in the embodiments of the present application.

[0610] The embodiments of the present application further provide a positioning method, comprising:

[0611] performing a positioning operation, wherein performing the positioning operation comprises:

[0612] receiving position related information reported by the terminal in the idle state or the inactive state, the position related information comprising an association relationship between a positioning measurement result and a time error group, and / or an association relationship between an uplink positioning reference signal and the time error group.

[0613] The association relationship is used to assist the network side device in positioning calculation, thereby reducing or eliminating the influence of the time error group on the positioning accuracy and improving the positioning accuracy.

[0614] Optionally, in the downlink and uplink positioning method, the association between the uplink positioning reference signal and the time error group is contained in the positioning measurement result.

[0615] Please refer to Figure 8 The embodiments of the present application also provide a positioning device 80, comprising:

[0616] a positioning module 81, configured to perform a positioning operation in an idle state or an inactive state, wherein the positioning operation comprises at least one of the following:

[0617] receiving and measuring a downlink positioning reference signal; and reporting position-related information;

[0618] sending an uplink positioning reference signal.

[0619] Optionally, the positioning device 80 further comprises:

[0620] a first receiving module, configured to receive first indication information in an idle state or an inactive state, wherein the first indication information comprises at least one of the following:

[0621] availability information of a positioning reference signal or availability information of configuration information of the positioning reference signal;

[0622] update information of configuration information of the positioning reference signal;

[0623] wherein the positioning reference signal comprises at least one of the following: the uplink positioning reference signal and the downlink positioning reference signal.

[0624] Optionally, the positioning device 80 further comprises:

[0625] a first execution module, configured to assume that the positioning reference signal does not exist, or the positioning reference signal is not sent, or the positioning reference signal is stopped from being sent, or the positioning reference signal is not sent, or the positioning reference signal is stopped from being sent, if the first indication information indicates that the positioning reference signal is unavailable.

[0626] or

[0627] a second execution module, configured to assume that configuration information of the positioning reference signal does not exist, or the positioning reference signal corresponding to the configuration information of the positioning reference signal is not sent, or the positioning reference signal corresponding to the configuration information of the positioning reference signal is stopped from being sent, or the positioning reference signal corresponding to the configuration information of the positioning reference signal is not sent, or the positioning reference signal corresponding to the configuration information of the positioning reference signal is stopped from being sent, if the first indication information indicates that the configuration information of the positioning reference signal is unavailable.

[0628] Optionally, the update information of the configuration information of the positioning reference signal comprises at least one of the following:

[0629] indication information of whether the configuration information of the positioning reference signal is updated;

[0630] the updated configuration information of the positioning reference signal.

[0631] Optionally, the indication information of whether the configuration information of the positioning reference signal is updated or the updated configuration information of the positioning reference signal comprises at least one of the following:

[0632] turning on or turning off of the configuration information of the positioning reference signal;

[0633] increase or decrease of bandwidth of the positioning reference signal;

[0634] increase or decrease of periodicity of the positioning reference signal;

[0635] change of muting configuration of the positioning reference signal;

[0636] change of spatial relation configuration of the positioning reference signal;

[0637] change of path loss configuration of the positioning reference signal.

[0638] Optionally, the positioning reference signal indicated by the first indication information is one of the following granularity:

[0639] one or more groups of the positioning reference signal corresponding to the configuration information of the positioning reference signal;

[0640] one or more positioning reference signal resources;

[0641] one or more sets of positioning reference signal resources;

[0642] the positioning reference signal under one or more TRPs;

[0643] the positioning reference signal under one or more frequency layers;

[0644] the positioning reference signal under all frequency layers.

[0645] Optionally, receiving the first indication information in an idle state or an inactive state comprises at least one of the following:

[0646] obtaining the first indication information in a paging PDCCH;

[0647] obtaining the first indication information in a paging PDSCH scheduled by the paging PDCCH;

[0648] obtaining the first indication information in a paging early indication;

[0649] obtaining the first indication information in a random access procedure or a small data transmission procedure;

[0650] obtaining the first indication information in a broadcast message;

[0651] obtaining the first indication information in an RRC release message;

[0652] obtaining the first indication information in PDCCH and / or PDSCH according to a downlink monitoring opportunity and / or a monitoring window configured by a network side device;

[0653] obtaining the first indication information from a PDSCH configured by a network side device.

[0654] Optionally, the first indication information is represented by a bit of a short message in a paging PDCCH, or represented by a reserved bit in the paging PDCCH.

[0655] Optionally, obtaining indication information whether configuration information of the positioning reference signal is updated in the paging PDCCH, and obtaining updated configuration information of the positioning reference signal in a paging PDSCH scheduled by the paging PDCCH.

[0656] Optionally, the first indication information further includes indication information whether to enter a connected state and update the configuration information of the positioning reference signal.

[0657] Optionally, the positioning apparatus 80 further includes:

[0658] a first initiation module, configured to initiate random access to enter a connected state and update the configuration information of the positioning reference signal if the first indication information includes indication information to enter the connected state and update the configuration information of the positioning reference signal, or the first indication information does not include indication information not to enter the connected state to update the configuration information of the positioning reference signal.

[0659] Optionally, the positioning apparatus 80 further includes:

[0660] a first sending module, configured to send first feedback information, the first feedback information being used to indicate that the first indication information has been received.

[0661] Optionally, the first feedback information is sent in an idle state or an inactive state or after the terminal enters the connected state.

[0662] Optionally, the first feedback information includes at least one of the following:

[0663] a feedback reason, the feedback reason comprising at least one of: an availability indication feedback of the positioning reference signal, a configuration information update feedback of the positioning reference signal, an update feedback of the configuration information of the positioning reference signal initiated by the network-side device;

[0664] an update response of the configuration information of the positioning reference signal, the update response being used to respond to an indication in the first indication information whether the configuration information of the positioning reference signal is updated.

[0665] Optionally, the positioning apparatus 80 further comprises a second receiving module configured to receive the updated configuration information of the positioning reference signal.

[0666] Optionally, the receiving the updated configuration information of the positioning reference signal comprises one of the following manners:

[0667] obtaining the updated configuration information of the positioning reference signal in an RRC release message;

[0668] obtaining the updated configuration information of the positioning reference signal in a PDSCH scheduled by a PDCCH scrambled by a C-RNTI;

[0669] receiving the updated configuration information of the positioning reference signal after entering a connected state.

[0670] Optionally, the positioning apparatus 80 further comprises:

[0671] a third execution module configured to, if the terminal is configured with an initial downlink BWP, execute one of the following:

[0672] receiving the downlink positioning reference signal in the initial downlink BWP;

[0673] receiving a downlink positioning reference signal with a same parameter configuration as the initial downlink BWP in the initial downlink BWP;

[0674] if the downlink positioning reference signal is repeated or collided or transmitted with a first signal in a same symbol, the terminal does not receive the downlink positioning reference signal, the first signal comprising at least one of the following: an SIB1, other SIBs except the SIB1, a Msg2, a Msg4, a MsgB, a PDCCH scheduling the SIB1, an SSB;

[0675] receiving the downlink positioning reference signal outside the initial downlink BWP by the terminal;

[0676] performing BWP switching according to an indication of a network-side device, a protocol agreement or a selection of the terminal, and receiving the downlink positioning reference signal on a BWP after the switching by the terminal.

[0677] Optionally, the position-related information comprises second indication information, the second indication information being used for indicating information of subsequent data transmission, the information of subsequent data transmission comprising at least one of the following:

[0678] whether there is subsequent data transmission;

[0679] a size of subsequent data transmission;

[0680] a period of subsequent data transmission;

[0681] whether ACK feedback is needed for subsequent data transmission;

[0682] a service characteristic of subsequent data to be transmitted;

[0683] a type of subsequent data to be transmitted, the type comprising at least one of the following: positioning-related data or non-positioning-related data, control plane data or user plane data, signaling radio bearer, non-access stratum or data radio bearer data.

[0684] Optionally, the positioning apparatus 80 further comprises a second sending module configured to transmit subsequent data to be transmitted on a PUSCH scheduled by a PDCCH configured by a network side device.

[0685] Optionally, the PDCCH configured by the network side device carries a type indication of scheduled uplink data; and the transmitting of subsequent data to be transmitted on the PUSCH scheduled by the PDCCH configured by the network side device comprises transmitting subsequent data to be transmitted corresponding to a type indicated by the type indication on the PUSCH scheduled by the PDCCH configured by the network side device.

[0686] Optionally, the positioning apparatus 80 further comprises:

[0687] a third sending module configured to send third indication information, the third indication information being used for indicating that configuration information of a positioning reference signal needs to be updated, the positioning reference signal comprising at least one of an uplink positioning reference signal and a downlink positioning reference signal.

[0688] Optionally, the third indication information is sent by an SDT mode or is sent after the terminal enters a connected state.

[0689] Optionally, the third indication information further comprises a reason for sending the third indication information, the reason comprising at least one of the following: the terminal initiates an update of the configuration information of the positioning reference signal, the configuration information of the positioning reference signal is updated, and the configuration information of the positioning reference signal is unavailable.

[0690] Optionally, the third indication information indicates a positioning reference signal of one of the following granularities:

[0691] positioning reference signals under configuration information of one or more groups of the positioning reference signals;

[0692] one or more positioning reference signal resources;

[0693] one or more sets of positioning reference signal resources;

[0694] positioning reference signals under one or more TRPs;

[0695] positioning reference signals under one or more frequency layers;

[0696] positioning reference signals under all frequency layers.

[0697] Optionally, the third indication information further comprises at least one of the following:

[0698] RRM measurement results of a serving cell;

[0699] RRM measurement results of a neighboring cell;

[0700] measurement results of positioning reference signals of a serving cell;

[0701] measurement results of positioning reference signals of a neighboring cell.

[0702] Optionally, the measurement results comprise at least one of the following: reference signal identifier, measurement results of N best beams above a threshold, indication of N best beams above a threshold, measurement results of a best beam, indication of a best beam, measurement results of N beams with strongest first-arrival-path RSRP, indication of N beams with strongest first-arrival-path RSRP, N being agreed by a protocol, indicated by a network-side device, or selected by the terminal.

[0703] Optionally, the sending of the third indication information comprises:

[0704] the terminal sends the third indication information when at least one of the following conditions is met:

[0705] if the terminal detects that adjustment of a tracking area exceeds a first tracking area threshold and the terminal is not in a connected state, the terminal sends the third indication information;

[0706] if the terminal detects that a difference between two consecutive first measurement values exceeds a first measurement threshold and the terminal is not in a connected state, the terminal sends the third indication information, the first measurement values comprising at least one of the following: measurement information of an SSB, measurement information of a paging or Msg2 or Msg4 or MsgB, measurement information of the positioning reference signals;

[0707] if the terminal detects that a second timer expires and the terminal is not in a connected state, the terminal sends the third indication information;

[0708] sending the third indication information if the camping cell of the terminal switches;

[0709] sending the third indication information if the camping cell of the terminal switches, and the downlink positioning reference signal cannot be received, the position-related information cannot be reported, or the uplink positioning reference signal cannot be transmitted;

[0710] sending the third indication information if the terminal moves out of a preconfigured effective area of configuration information of the positioning reference signal.

[0711] Optionally, the preconfigured effective area of configuration information of the positioning reference signal is a certain cell, a list of certain cells, or a region covered by certain SSB.

[0712] Optionally, the positioning apparatus 80 further includes:

[0713] a third receiving module configured to receive first indication information in an idle state or an inactive state, the first indication information including at least one of the following:

[0714] availability information of a positioning reference signal or availability information of configuration information of the positioning reference signal;

[0715] update information of configuration information of a positioning reference signal;

[0716] wherein the positioning reference signal includes at least one of the following: the uplink positioning reference signal and the downlink positioning reference signal.

[0717] Optionally, the positioning apparatus 80 further includes:

[0718] a fourth receiving module configured to, after sending the third indication information, start a third timer and receive the first indication information before the third timer expires.

[0719] Optionally, reporting position-related information includes:

[0720] reporting measurement information, the measurement information including at least one of the following:

[0721] RRM measurement results of a serving cell;

[0722] RRM measurement results of a neighboring cell;

[0723] measurement results of a positioning reference signal of a serving cell;

[0724] measurement results of a positioning reference signal of a neighboring cell.

[0725] Optionally, the measurement information is reported through an SDT mode.

[0726] Optionally, the measurement information is reported periodically.

[0727] Optionally, the positioning apparatus 80 further comprises:

[0728] a fifth receiving module, configured to receive a reporting configuration of the measurement information, the reporting configuration comprising at least one of:

[0729] a reporting period;

[0730] a periodic offset;

[0731] a number of periods;

[0732] a content of the measurement result to be reported;

[0733] a cell identity associated with performing the RRM measurement.

[0734] Optionally, the receiving the reporting configuration of the measurement information comprises at least one of:

[0735] obtaining the reporting configuration of the measurement information in a broadcast message;

[0736] obtaining the reporting configuration of the measurement information in an RRC dedicated message;

[0737] obtaining the reporting configuration of the measurement information in an RRC release message.

[0738] Optionally, the uplink positioning reference signal comprises at least one of:

[0739] Optionally, the transmitting the aperiodic SRS comprises at least one of:

[0740] the aperiodic SRS is triggered by a PDCCH scrambled by a C-RNTI;

[0741] the aperiodic SRS is transmitted before an RRC release message after a contention resolution is successful.

[0742] Optionally, the transmitting the semi-persistent SRS comprises at least one of:

[0743] the semi-persistent SRS is activated by a PDSCH scheduled by a network side device;

[0744] the semi-persistent SRS is received before an RRC release message after a contention resolution is successful.

[0745] Optionally, the positioning apparatus 80 further comprises:

[0746] The fourth sending module is configured to send the request information in the SDT mode, the request information being used to request the network-side device to trigger the aperiodic SRS or activate the semi-persistent SRS, and the request information containing at least one of the following:

[0747] The aperiodic SRS triggering request or the semi-persistent SRS activation request;

[0748] The uplink positioning request;

[0749] The event information.

[0750] Optionally, the sending of the request information in the SDT mode comprises:

[0751] The sending of the request information in the SDT mode is performed when an event occurs, and the event comprises at least one of the following: a region event, an action event.

[0752] Optionally, the positioning apparatus 80 further comprises:

[0753] The fifth sending module is configured to send fourth indication information, the fourth indication information being used to indicate a change in uplink positioning reference signal timing.

[0754] Optionally, the sending of the fourth indication information comprises one of the following:

[0755] The fourth indication information is sent in the SDT mode;

[0756] The fourth indication information is sent in the connected state.

[0757] Optionally, the fourth indication information further comprises:

[0758] The amount of the change in uplink positioning reference signal timing;

[0759] The cause of the change in uplink positioning reference signal timing, the cause comprising at least one of the following: cell reselection or cell handover of the terminal, automatic adjustment of the terminal on uplink positioning reference signal timing, and reception by the terminal of a timing advance command of a camped cell.

[0760] Optionally, the sending of the fourth indication information comprises: the fourth indication information is sent when at least one of the following conditions is met: cell reselection or cell handover of the terminal, automatic adjustment of the terminal on uplink positioning reference signal timing, and reception by the terminal of a timing advance command of a camped cell.

[0761] Optionally, the positioning apparatus 80 further comprises: a sixth sending module configured to send fifth indication information, the fifth indication information being used to indicate a change in a camped cell.

[0762] Optionally, the sending of the fifth indication information comprises one of the following:

[0763] transmitting the fifth indication information by the SDT manner;

[0764] transmitting the fifth indication information in the connected state.

[0765] Optionally, the fifth indication information further comprises identification information of the camping cell.

[0766] Optionally, transmitting the fifth indication information comprises:

[0767] transmitting the fifth indication information if the camping cell of the terminal is switched.

[0768] Optionally, the positioning apparatus 80 further comprises:

[0769] a second initiating module, configured to initiate the terminal to enter the connected state or transmit third indication information if the camping cell of the terminal is switched and the terminal is unable to perform at least one of the following operations:

[0770] the terminal is unable to transmit uplink positioning reference signals;

[0771] the terminal is unable to measure downlink positioning reference signals;

[0772] the terminal is unable to report position-related information;

[0773] wherein the third indication information is used to indicate that configuration information of positioning reference signals needs to be updated, the positioning reference signals comprising at least one of uplink positioning reference signals and downlink positioning reference signals.

[0774] Optionally, performing the positioning operation in the idle state or the inactive state further comprises at least one of the following:

[0775] ignoring the to-be-transmitted uplink positioning reference signals if a time-domain position of the to-be-transmitted uplink positioning reference signals is more than a distance X away from a paging occasion;

[0776] ignoring measurement of the downlink positioning reference signals if a time-domain position of the downlink positioning reference signals is more than a distance X away from a paging occasion;

[0777] ignoring reporting of the position-related information if a time-domain position of the position-related information is more than a distance X away from a paging occasion;

[0778] ignoring the to-be-transmitted uplink positioning reference signals if a time-domain position of the to-be-transmitted uplink positioning reference signals is more than a distance X away from a time-domain position of the downlink positioning reference signals.

[0779] Optionally, the paging occasion is a paging occasion of the camping cell.

[0780] Optionally, the reported position-related information comprises an association between a positioning measurement result and a time error group, and / or an association between an uplink positioning reference signal and a time error group.

[0781] Optionally, in the downlink and uplink positioning method, the association between the uplink positioning reference signal and the time error group is contained in the positioning measurement result.

[0782] Optionally, the receiving and measuring of the downlink positioning reference signal comprises receiving and measuring the downlink positioning reference signal according to a spatial beam relationship between the downlink positioning reference signal and a synchronization signal block (SSB).

[0783] The spatial beam relationship between the downlink positioning reference signal and the synchronization signal block (SSB) is obtained from a spatial QCL relationship between the downlink positioning reference signal and the SSB indicated by the network side device, or from a default relationship between the downlink positioning reference signal resource and an SSB actually transmitted in a synchronization signal block burst of a TRP where the downlink positioning reference signal resource is located.

[0784] The positioning apparatus in the embodiments of the present application can be an apparatus, an apparatus with an operating system, or an electronic device, and can also be a component in a terminal, an integrated circuit, or a chip. The apparatus or electronic device can be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal can include, but is not limited to, the types of the terminal 11 listed above, and the non-mobile terminal can be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a teller machine, or a self-service machine, and the like, without specific limitation in the embodiments of the present application.

[0785] The positioning apparatus provided in the embodiments of the present application can implement the various processes of the method embodiments and achieve the same technical effects, and thus, details are not repeated here. Figure 6 The positioning apparatus provided in the embodiments of the present application can implement the various processes of the method embodiments and achieve the same technical effects, and thus, details are not repeated here.

[0786] Please refer to Figure 9 The embodiments of the present application further provide a positioning apparatus 90, which comprises:

[0787] A positioning module 91 is configured to perform a positioning operation, wherein the positioning operation comprises at least one of the following:

[0788] sending a downlink positioning reference signal to a terminal in an idle state or an inactive state;

[0789] receiving position-related information reported by a terminal in an idle state or an inactive state;

[0790] measuring an uplink positioning reference signal sent by a terminal in an idle state or an inactive state.

[0791] Optionally, the positioning apparatus 90 further comprises:

[0792] a first sending module, configured to send first indication information to a terminal in an idle state or an inactive state, the first indication information comprising at least one of the following:

[0793] availability information of a positioning reference signal or availability information of configuration information of the positioning reference signal;

[0794] update information of configuration information of the positioning reference signal;

[0795] wherein the positioning reference signal comprises at least one of the following: the uplink positioning reference signal and the downlink positioning reference signal.

[0796] Optionally, the update information of the configuration information of the positioning reference signal comprises at least one of the following:

[0797] indication information indicating whether the configuration information of the positioning reference signal is updated or not;

[0798] the updated configuration information of the positioning reference signal.

[0799] Optionally, the indication information indicating whether the configuration information of the positioning reference signal is updated or not or the updated configuration information of the positioning reference signal comprises at least one of the following:

[0800] turning on or turning off of the configuration information of the positioning reference signal;

[0801] increase or decrease of bandwidth of the positioning reference signal;

[0802] increase or decrease of periodicity of the positioning reference signal;

[0803] change of muting configuration of the positioning reference signal;

[0804] change of spatial relation configuration of the positioning reference signal;

[0805] change of path loss configuration of the positioning reference signal.

[0806] Optionally, the first indication information indicates the positioning reference signal in one of the following granularities:

[0807] a group or multiple groups of positioning reference signals corresponding to the configuration information of the positioning reference signal;

[0808] one or more positioning reference signal resources;

[0809] one or more sets of positioning reference signal resources;

[0810] Positioning reference signals under one or more TRPs;

[0811] Positioning reference signals under one or more frequency layers;

[0812] Positioning reference signals under all frequency layers.

[0813] Optionally, the first indication information is carried by at least one of the following ways:

[0814] In a paging PDCCH;

[0815] In a paging PDSCH scheduled by the paging PDCCH;

[0816] In a paging early indication;

[0817] In a random access procedure or a small data transmission procedure;

[0818] In a broadcast message;

[0819] In an RRC release message;

[0820] In a PDCCH and / or PDSCH corresponding to a downlink monitoring opportunity and / or monitoring window configured by a network side device;

[0821] In a PDSCH from a downlink scheduling resource configured by a network side device.

[0822] Optionally, the first indication information is represented by a bit of a short message in a paging PDCCH, or by a reserved bit in a paging PDCCH.

[0823] Optionally, indication information of whether the configuration information of the positioning reference signal is updated is carried in a paging PDCCH, and the updated configuration information of the positioning reference signal is carried in a paging PDSCH scheduled by the paging PDCCH.

[0824] Optionally, the first indication information further includes indication information of whether to enter a connected state and update the configuration information of the positioning reference signal.

[0825] Optionally, the positioning device 90 further includes:

[0826] A first receiving module, configured to receive first feedback information sent by the terminal, the first feedback information being used to indicate that the first indication information has been received.

[0827] Optionally, the first feedback information includes at least one of the following:

[0828] a feedback reason, the feedback reason comprising at least one of: an availability indication feedback of the positioning reference signal, a configuration information update feedback of the positioning reference signal, an update feedback of the configuration information of the positioning reference signal initiated by the network-side device;

[0829] an update response of the configuration information of the positioning reference signal, the update response being used to respond to an indication in the first indication information whether the configuration information of the positioning reference signal is updated.

[0830] Optionally, the positioning apparatus 90 further comprises:

[0831] a second sending module, configured to send the updated configuration information of the positioning reference signal to the terminal.

[0832] Optionally, the updated configuration information of the positioning reference signal is carried by one of the following ways:

[0833] in a RRC release message;

[0834] in a PDSCH scheduled by a PDCCH scrambled by a C-RNTI;

[0835] in a RRC dedicated message.

[0836] Optionally, the location-related information comprises second indication information, the second indication information being used to indicate subsequent data transmission information, the subsequent data transmission information comprising at least one of:

[0837] whether there is subsequent data transmission;

[0838] a size of subsequent data transmission;

[0839] a period of subsequent data transmission;

[0840] whether ACK feedback is needed for subsequent data transmission;

[0841] a service characteristic of subsequent to-be-transmitted data;

[0842] a type of subsequent to-be-transmitted data, the type comprising at least one of: positioning-related data or non-positioning-related data, control plane data or user plane data, signaling radio bearer, non-access stratum or data radio bearer data.

[0843] Optionally, the positioning apparatus 90 further comprises:

[0844] a second receiving module, configured to receive subsequent to-be-transmitted data on a PUSCH scheduled by a PDCCH configured by the network-side device.

[0845] Optionally, the positioning apparatus 90 further comprises:

[0846] a third receiving module, configured to receive third indication information sent by the terminal, the third indication information being used to indicate that configuration information of a positioning reference signal needs to be updated, the positioning reference signal including at least one of an uplink positioning reference signal and a downlink positioning reference signal.

[0847] Optionally, the third indication information further includes a reason for sending the third indication information, the reason including at least one of the following: the terminal initiates the update of the configuration information of the positioning reference signal, the update of the configuration information of the positioning reference signal, and the configuration information of the positioning reference signal being unavailable.

[0848] Optionally, the positioning reference signal indicated by the third indication information is one of the following granularities:

[0849] one or more groups of positioning reference signals under the configuration information of the positioning reference signal;

[0850] one or more positioning reference signal resources;

[0851] one or more positioning reference signal resource sets;

[0852] one or more positioning reference signals under one or more TRPs;

[0853] one or more positioning reference signals under one or more frequency layers;

[0854] all positioning reference signals under all frequency layers.

[0855] Optionally, the third indication information further includes at least one of the following:

[0856] an RRM measurement result of a serving cell;

[0857] an RRM measurement result of a neighboring cell;

[0858] a measurement result of a positioning reference signal of a serving cell;

[0859] a measurement result of a positioning reference signal of a neighboring cell.

[0860] Optionally, the measurement result includes at least one of the following: a reference signal identifier, measurement results of N best beams higher than a threshold, an indication of N best beams higher than a threshold, a measurement result of a best beam, an indication of a best beam, measurement results of N beams with the strongest first-arrival-path RSRP, an indication of N beams with the strongest first-arrival-path RSRP, and N being agreed by a protocol, indicated by a network-side device, or selected by the terminal.

[0861] Optionally, the positioning apparatus 90 further includes:

[0862] The third sending module is configured to send first indication information to the terminal, wherein the first indication information comprises at least one of the following:

[0863] availability information of the positioning reference signal or availability information of configuration information of the positioning reference signal;

[0864] update information of configuration information of the positioning reference signal;

[0865] The positioning reference signal comprises at least one of the following: the uplink positioning reference signal and the downlink positioning reference signal.

[0866] Optionally, the position-related information comprises measurement information, and the measurement information comprises at least one of the following:

[0867] RRM measurement result of a serving cell;

[0868] RRM measurement result of a neighboring cell;

[0869] measurement result of a positioning reference signal of a serving cell;

[0870] measurement result of a positioning reference signal of a neighboring cell.

[0871] Optionally, the measurement information is periodically reported by the terminal.

[0872] Optionally, the positioning apparatus further comprises:

[0873] The fourth sending module is configured to send reporting configuration of the measurement information to the terminal, wherein the reporting configuration comprises at least one of the following:

[0874] reporting period;

[0875] period offset;

[0876] number of periods;

[0877] content of the reported measurement result;

[0878] cell identification associated with the RRM measurement.

[0879] Optionally, the reporting configuration of the measurement information is carried by at least one of the following:

[0880] in a broadcast message;

[0881] in an RRC dedicated message;

[0882] in an RRC release message.

[0883] Optionally, the uplink positioning reference signal comprises aperiodic SRS or semi-persistent SRS.

[0884] Optionally, the positioning device further includes:

[0885] a fifth sending module, configured to send trigger information to the terminal through the PDCCH scrambled by the C-RNTI, so as to trigger the terminal to send the aperiodic SRS;

[0886] The PDCCH and / or aperiodic SRS scrambled by the C-RNTI is sent after contention resolution is successful but before the RRC release message.

[0887] Optionally, the positioning device 90 further includes:

[0888] a sixth sending module, configured to send activation information via a PDSCH scheduled by a network-side device, to activate the terminal to send a semi-persistent SRS;

[0889] The PDSCH and / or the semi-persistent SRS scheduled by the network side device are received after contention is successfully resolved and before an RRC release message is received.

[0890] Optionally, the positioning device 90 further includes:

[0891] The third receiving module is configured to receive a request message sent by the terminal in an SDT manner, where the request message is used to request a network-side device to trigger an aperiodic SRS or activate a semi-persistent SRS, and the request message includes at least one of the following:

[0892] Aperiodic SRS trigger request or semi-persistent SRS activation request;

[0893] Uplink positioning request;

[0894] Event information.

[0895] Optionally, the positioning device 90 further includes:

[0896] The fourth receiving module is configured to receive fourth indication information sent by the terminal, where the fourth indication information is used to indicate a change in uplink positioning reference signal timing.

[0897] Optionally, the fourth indication information further includes:

[0898] The amount of uplink positioning reference signal timing variation;

[0899] The reasons causing the uplink positioning reference signal timing change include at least one of the following: switching or reselection of the cell where the terminal resides, automatic adjustment of the uplink positioning reference signal timing by the terminal, and receipt of a timing advance command by the cell where the terminal resides.

[0900] Optionally, the positioning device 90 further includes:

[0901] a fifth receiving module, configured to receive fifth indication information sent by the terminal, the fifth indication information being used to indicate a change of a camping cell.

[0902] Optionally, the fifth indication information further comprises identification information of the camping cell.

[0903] Optionally, the position-related information reported by the terminal in the idle state or the inactive state comprises:

[0904] a correlation between a positioning measurement result and a time error group, and / or a correlation between an uplink positioning reference signal and the time error group.

[0905] Embodiments of the present application further provide a positioning device, comprising:

[0906] a positioning module, configured to perform a positioning operation in an idle state, an inactive state or a connected state, wherein performing the positioning operation comprises:

[0907] reporting position-related information, the position-related information comprising a correlation between a positioning measurement result and a time error group, and / or a correlation between an uplink positioning reference signal and the time error group.

[0908] The correlation is used to assist a network-side device in performing positioning calculation, thereby reducing or eliminating the influence of the time error group on positioning accuracy and improving the positioning accuracy.

[0909] Optionally, in a downlink and uplink positioning method, the correlation between the uplink positioning reference signal and the time error group is contained in the positioning measurement result.

[0910] Embodiments of the present application further provide a positioning device, comprising:

[0911] a positioning module, configured to perform a positioning operation, wherein performing the positioning operation comprises:

[0912] receiving position-related information reported by a terminal in an idle state or an inactive state, the position-related information comprising a correlation between a positioning measurement result and a time error group, and / or a correlation between an uplink positioning reference signal and the time error group.

[0913] The correlation is used to assist a network-side device in performing positioning calculation, thereby reducing or eliminating the influence of the time error group on positioning accuracy and improving the positioning accuracy.

[0914] Optionally, in a downlink and uplink positioning method, the correlation between the uplink positioning reference signal and the time error group is contained in the positioning measurement result.

[0915] As Figure 10As shown, the embodiments of the present application further provide a communication device 100, which comprises a processor 101, a memory 102, a program or instruction stored in the memory 102 and executable on the processor 101, for example, when the communication device 100 is a terminal, the program or instruction is executed by the processor 101 to implement each process of the above-mentioned positioning method embodiments executed by the terminal and achieve the same technical effects. When the communication device 100 is a network side device, the program or instruction is executed by the processor 101 to implement each process of the above-mentioned positioning method embodiments executed by the network side device and achieve the same technical effects. To avoid repetition, details are not described here.

[0916] The embodiments of the present application further provide a terminal, which comprises a processor and a communication interface, and the processor is configured to perform a positioning operation by the terminal in an idle state or an inactive state, wherein the positioning operation comprises at least one of the following: receiving and measuring a downlink positioning reference signal; reporting position related information; and transmitting an uplink positioning reference signal. The terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation manner of the above-mentioned method embodiment can be applied to the terminal embodiment and achieve the same technical effects. Specifically, Figure 11 To implement the hardware structure of a terminal according to an embodiment of the present application.

[0917] The terminal 110 comprises, but is not limited to, at least part of the components such as a radio frequency unit 111, a network module 112, an audio output unit 113, an input unit 114, a sensor 115, a display unit 116, a user input unit 117, an interface unit 118, a memory 119, and a processor 1110.

[0918] Those skilled in the art can understand that the terminal 110 can further comprise a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 1110 through a power management system, so as to realize functions such as management of charging, discharging, and power consumption management through the power management system. Figure 11 The terminal structure shown in the figure does not constitute a limitation on the terminal, and the terminal can comprise more or fewer components than those shown in the figure, or combine certain components, or different component arrangements, which are not described here.

[0919] It should be understood that in the embodiments of the present application, the input unit 114 can include a graphics processing unit (GPU) 1141 and a microphone 1142. The graphics processing unit 1141 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 116 can include a display panel 1161, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 117 includes a touch panel 1171 and other input devices 1172. The touch panel 1171 is also called a touch screen. The touch panel 1171 can include two parts of a touch detection device and a touch controller. The other input devices 1172 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), trackballs, mice, joysticks, and the like, which will not be described here.

[0920] In the embodiments of the present application, the radio frequency unit 111 receives downlink data from a network side device and processes the data by the processor 1110. In addition, the radio frequency unit 111 sends uplink data to the network side device. Generally, the radio frequency unit 111 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0921] The memory 119 can be used to store software programs or instructions and various data. The memory 119 can mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area can store an operating system, application programs or instructions required by at least one function (such as a sound playing function, an image playing function, etc.), etc. In addition, the memory 119 can include a high-speed random access memory, and can also include a non-volatile memory, which can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM) or a flash memory. For example, at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state memory device.

[0922] The processor 1110 can include one or more processing units; optionally, the processor 1110 can integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface and application programs or instructions, and the modem processor mainly processes wireless communication, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 1110.

[0923] In some embodiments, the processor 1110 is configured to perform a positioning operation in an idle state or an inactive state, wherein the positioning operation comprises at least one of the following:

[0924] receiving and measuring a downlink positioning reference signal;

[0925] reporting position-related information;

[0926] sending an uplink positioning reference signal.

[0927] In the embodiments of the present application, the positioning function is performed in the RRC inactive state or the RRC idle state, thereby guaranteeing the positioning performance and low power consumption.

[0928] Optionally, the radio frequency module 111 is configured to receive first indication information in the idle state or the inactive state, and the first indication information comprises at least one of the following:

[0929] availability information of a positioning reference signal or availability information of configuration information of the positioning reference signal;

[0930] update information of the configuration information of the positioning reference signal;

[0931] The positioning reference signal comprises at least one of the following: the uplink positioning reference signal and the downlink positioning reference signal.

[0932] Optionally, if the first indication information indicates that the positioning reference signal is unavailable, the terminal assumes that the positioning reference signal does not exist, or the positioning reference signal is not sent, or the positioning reference signal is stopped from being sent, or the positioning reference signal is not sent, or the positioning reference signal is stopped from being sent.

[0933] Or

[0934] If the first indication information indicates that the configuration information of the positioning reference signal is unavailable, the terminal assumes that the positioning reference signal corresponding to the configuration information of the positioning reference signal does not exist, or the positioning reference signal corresponding to the configuration information of the positioning reference signal is not sent, or the positioning reference signal corresponding to the configuration information of the positioning reference signal is stopped from being sent, or the positioning reference signal corresponding to the configuration information of the positioning reference signal is not sent, or the positioning reference signal corresponding to the configuration information of the positioning reference signal is stopped from being sent.

[0935] Optionally, the update information of the configuration information of the positioning reference signal comprises at least one of the following:

[0936] indication information of whether the configuration information of the positioning reference signal is updated;

[0937] the updated configuration information of the positioning reference signal.

[0938] Optionally, the indication information for indicating whether the configuration information of the positioning reference signal has been updated or the updated configuration information of the positioning reference signal includes at least one of the following:

[0939] Turning on or off the configuration information of the positioning reference signal;

[0940] increasing or decreasing the bandwidth of the positioning reference signal;

[0941] Increase or decrease the period of the positioning reference signal;

[0942] a change in a muting configuration of the positioning reference signal;

[0943] The spatial relationship configuration of the positioning reference signal changes;

[0944] The path loss configuration of the positioning reference signal changes.

[0945] Optionally, the positioning reference signal indicated by the first indication information has one of the following granularities:

[0946] One or more groups of positioning reference signals corresponding to the configuration information of the positioning reference signals;

[0947] one or more positioning reference signal resources;

[0948] One or more positioning reference signal resource sets;

[0949] Positioning reference signals under one or more TRPs;

[0950] Positioning reference signals in one or more frequency layers;

[0951] Positioning reference signals in all frequency layers.

[0952] Optionally, receiving the first indication information in the idle state or the inactive state includes at least one of the following:

[0953] Obtaining the first indication information in the paging PDCCH;

[0954] Obtaining the first indication information in the paging PDSCH scheduled by the paging PDCCH;

[0955] Obtaining the first indication information in the paging advance indication;

[0956] Obtaining the first indication information during a random access process or a small data transmission process;

[0957] Obtaining the first indication information in a broadcast message;

[0958] obtain the first indication information in the RRC release message;

[0959] obtain the first indication information in PDCCH and / or PDSCH according to the downlink monitoring opportunity and / or monitoring window configured by the network side device;

[0960] obtain the first indication information from the PDSCH configured by the network side device.

[0961] Optionally, the first indication information is represented by a bit of a short message in the paging PDCCH, or represented by a reserved bit in the paging PDCCH.

[0962] Optionally, obtain the indication information of whether the configuration information of the positioning reference signal is updated in the paging PDCCH, and obtain the updated configuration information of the positioning reference signal in the paging PDSCH scheduled by the paging PDCCH.

[0963] Optionally, the first indication information further includes indication information of whether to enter the connected state and update the configuration information of the positioning reference signal.

[0964] Optionally, the radio frequency module 111 is configured to initiate random access to enter the connected state and update the configuration information of the positioning reference signal if the first indication information includes indication information of entering the connected state and updating the configuration information of the positioning reference signal, or the first indication information does not include indication information of not entering the connected state to update the configuration information of the positioning reference signal.

[0965] Optionally, the radio frequency module 111 is configured to send first feedback information, and the first feedback information is used to indicate that the first indication information has been received.

[0966] Optionally, the first feedback information is sent in the idle state or the inactive state or after the terminal enters the connected state.

[0967] Optionally, the first feedback information includes at least one of the following:

[0968] feedback reason, the feedback reason including at least one of the following: availability indication feedback of the positioning reference signal, configuration information update feedback of the positioning reference signal, update feedback of the configuration information of the positioning reference signal initiated by the network side device;

[0969] update response of the configuration information of the positioning reference signal, the update response being used to respond to the indication information of whether the configuration information of the positioning reference signal is updated in the first indication information.

[0970] Optionally, the radio frequency module 111 is configured to receive the updated configuration information of the positioning reference signal.

[0971] Optionally, the receiving the updated configuration information of the positioning reference signal comprises one of the following manners:

[0972] obtaining the updated configuration information of the positioning reference signal in an RRC release message;

[0973] obtaining the updated configuration information of the positioning reference signal in a PDSCH scheduled by a PDCCH scrambled by a C-RNTI;

[0974] receiving the updated configuration information of the positioning reference signal after entering a connected state.

[0975] Optionally, the processing module 1110 is configured to perform one of the following if the terminal is configured with an initial downlink BWP:

[0976] receiving the downlink positioning reference signal in the initial downlink BWP;

[0977] receiving a downlink positioning reference signal with a same parameter configuration as the initial downlink BWP in the initial downlink BWP;

[0978] if the downlink positioning reference signal is repeated or collides or transmitted with a first signal in a same symbol, the terminal does not receive the downlink positioning reference signal, and the first signal comprises at least one of the following: an SIB1, other SIBs than the SIB1, a Msg2, a Msg4, a MsgB, a PDCCH scheduling the SIB1, and an SSB;

[0979] receiving the downlink positioning reference signal outside the initial downlink BWP;

[0980] performing BWP switching according to an indication of a network side device, a protocol agreement, or a selection of the terminal, and receiving the downlink positioning reference signal on a BWP after the switching.

[0981] Optionally, the position related information comprises second indication information used for indicating subsequent data transmission information, and the subsequent data transmission information comprises at least one of the following:

[0982] whether there is subsequent data transmission;

[0983] a size of subsequent data transmission;

[0984] a period of subsequent data transmission;

[0985] whether ACK feedback is needed for subsequent data transmission;

[0986] a service characteristic of subsequent to-be-transmitted data;

[0987] A type of the subsequent to-be-transmitted data, the type including at least one of the following: positioning-related data or non-positioning-related data, control plane data or user plane data, signaling radio bearer, non-access stratum, or data radio bearer data.

[0988] Optionally, the radio frequency module 111 is configured to transmit the subsequent to-be-transmitted data on the PUSCH scheduled by the PDCCH configured by the network-side device.

[0989] Optionally, the PDCCH configured by the network-side device carries an indication of a type of the scheduled uplink data; and the radio frequency module 111 is configured to transmit the subsequent to-be-transmitted data on the PUSCH scheduled by the PDCCH configured by the network-side device.

[0990] The radio frequency module 111 is configured to transmit the subsequent to-be-transmitted data of the type indicated by the type indication on the PUSCH scheduled by the PDCCH configured by the network-side device.

[0991] Optionally, the radio frequency module 111 is configured to send third indication information, the third indication information being used to indicate that configuration information of a positioning reference signal needs to be updated, the positioning reference signal including at least one of an uplink positioning reference signal and a downlink positioning reference signal.

[0992] Optionally, the third indication information is sent by an SDT mode or after the terminal enters a connected state.

[0993] Optionally, the third indication information further includes a reason for sending the third indication information, the reason including at least one of the following: the terminal initiates an update of the configuration information of the positioning reference signal, the configuration information of the positioning reference signal is updated, and the configuration information of the positioning reference signal is unavailable.

[0994] Optionally, the third indication information indicates a positioning reference signal of one of the following granularities:

[0995] A set or multiple sets of positioning reference signals under configuration information of the positioning reference signals;

[0996] One or more positioning reference signal resources;

[0997] One or more sets of positioning reference signal resources;

[0998] Positioning reference signals under one or more TRPs;

[0999] Positioning reference signals under one or more frequency layers;

[1000] Positioning reference signals under all frequency layers.

[1001] Optionally, the third indication information further includes at least one of the following:

[1002] RRM measurement results of the serving cell;

[1003] RRM measurement results of neighboring cells;

[1004] The measurement result of the positioning reference signal of the serving cell;

[1005] The measurement results of the positioning reference signals of neighboring cells.

[1006] Optionally, the measurement result includes at least one of the following: a reference signal identifier, a measurement result of the N best beams above a threshold, an indication of the N best beams above a threshold, a measurement result of the best beam, an indication of the best beam, a measurement result of the N beams with the strongest first-reach RSRP, an indication of the N beams with the strongest first-reach RSRP, where N is agreed upon by the protocol, indicated by the network side device, or selected by the terminal.

[1007] Optionally, the RF module 111 is configured to send third indication information when the terminal meets at least one of the following conditions:

[1008] If the terminal detects that the adjustment of the tracking area exceeds the first tracking area threshold and the terminal has not entered the connected state, sending the third indication information;

[1009] If the terminal detects that the difference between two previous first measurement values ​​exceeds a first measurement threshold, and the terminal has not entered a connected state, the third indication information is sent, where the first measurement value includes at least one of the following: SSB measurement information, paging or Msg2 or Msg4 or MsgB measurement information, and the positioning reference signal measurement information;

[1010] If the terminal detects that the second timer has timed out and the terminal has not entered the connected state, sending the third indication information;

[1011] If the cell where the terminal resides is switched, sending the third indication information;

[1012] If the cell where the terminal resides is switched, and the downlink positioning reference signal cannot be received, the position-related information cannot be reported, or the uplink positioning reference signal cannot be sent, sending the third indication information;

[1013] If the terminal moves out of the pre-configured effective area of ​​the configuration information of the positioning reference signal, the third indication information is sent.

[1014] Optionally, the effective area of ​​the pre-configured configuration information of the positioning reference signal is a certain cell, a certain cell list, or an area covered by one or more SSBs.

[1015] Optionally, the radio frequency module 111 is configured to receive first indication information in an idle state or an inactive state, and the first indication information comprises at least one of the following:

[1016] availability information of the positioning reference signal or availability information of configuration information of the positioning reference signal;

[1017] update information of configuration information of the positioning reference signal;

[1018] The positioning reference signal comprises at least one of the following: the uplink positioning reference signal and the downlink positioning reference signal.

[1019] Optionally, the radio frequency module 111 is configured to start a third timer after sending the third indication information, and receive the first indication information before the third timer expires.

[1020] Optionally, the reported position-related information comprises:

[1021] reporting measurement information, and the measurement information comprises at least one of the following:

[1022] RRM measurement results of a serving cell;

[1023] RRM measurement results of a neighboring cell;

[1024] measurement results of a positioning reference signal of a serving cell;

[1025] measurement results of a positioning reference signal of a neighboring cell.

[1026] Optionally, the measurement information is reported through an SDT mode.

[1027] Optionally, the measurement information is reported periodically.

[1028] Optionally, the radio frequency module 111 is configured to receive a reporting configuration of the measurement information, and the reporting configuration comprises at least one of the following:

[1029] a reporting period;

[1030] a period offset;

[1031] a number of periods;

[1032] a content of the reported measurement results;

[1033] a cell identifier associated with the RRM measurement.

[1034] Optionally, the received reporting configuration of the measurement information comprises at least one of the following:

[1035] obtaining the reporting configuration of the measurement information in a broadcast message;

[1036] obtain the reporting configuration of the measurement information in the RRC dedicated message;

[1037] obtain the reporting configuration of the measurement information in the RRC release message.

[1038] Optionally, the uplink positioning reference signal comprises: aperiodic SRS or semi-persistent SRS.

[1039] Optionally, the sending of the aperiodic SRS comprises at least one of:

[1040] the aperiodic SRS is triggered to be sent by a PDCCH scrambled by a C-RNTI;

[1041] the aperiodic SRS is triggered to be sent by a PDCCH scrambled by a C-RNTI;

[1042] Optionally, the sending of the semi-persistent SRS comprises at least one of:

[1043] the semi-persistent SRS is activated to be sent by a PDSCH scheduled by a network side device;

[1044] the semi-persistent SRS is activated to be sent by a PDSCH scheduled by a network side device;

[1045] Optionally, the radio frequency module 111 is configured to send request information in an SDT mode, the request information being used to request a network side device to trigger an aperiodic SRS or activate a semi-persistent SRS, and the request information comprises at least one of:

[1046] an aperiodic SRS triggering request or a semi-persistent SRS activation request;

[1047] an uplink positioning request;

[1048] event information.

[1049] Optionally, the sending of the request information in the SDT mode comprises:

[1050] when an event occurs, the request information is sent in the SDT mode, and the event comprises at least one of: a region event and an action event.

[1051] Optionally, the radio frequency module 111 is configured to send fourth indication information, the fourth indication information being used to indicate a change in timing of an uplink positioning reference signal.

[1052] Optionally, the sending of the fourth indication information comprises one of:

[1053] the fourth indication information is sent in the SDT mode;

[1054] sending the fourth indication information in the connected state.

[1055] Optionally, the fourth indication information further comprises:

[1056] an amount of change of the uplink positioning reference signal timing;

[1057] a cause of the change of the uplink positioning reference signal timing, the cause comprising at least one of: cell reselection or cell handover of the terminal, automatic adjustment of the uplink positioning reference signal timing by the terminal, and reception of a timing advance command by the terminal.

[1058] Optionally, the fourth indication information is sent by:

[1059] the fourth indication information is sent when at least one of the following conditions is met: cell reselection or cell handover of the terminal, automatic adjustment of the uplink positioning reference signal timing by the terminal, and reception of a timing advance command by the terminal.

[1060] Optionally, the radio frequency module 111 is configured to send fifth indication information, the fifth indication information being used to indicate a change of a camped cell.

[1061] Optionally, the fifth indication information is sent by at least one of:

[1062] the fifth indication information is sent by the SDT mode;

[1063] the fifth indication information is sent in the connected state.

[1064] Optionally, the fifth indication information further comprises identification information of the camped cell.

[1065] Optionally, the fifth indication information is sent when the camped cell of the terminal is changed.

[1066] Optionally, the radio frequency module 111 is configured to, when the camped cell of the terminal is changed and the terminal is unable to perform at least one of the following operations: initiating random access to enter the connected state or sending the third indication information:

[1067] the terminal is unable to send the uplink positioning reference signal;

[1068] the terminal is unable to measure the downlink positioning reference signal;

[1069] the terminal is unable to report the location-related information;

[1070] The third indication information is used for indicating that configuration information of a positioning reference signal needs to be updated, and the positioning reference signal includes at least one of an uplink positioning reference signal and a downlink positioning reference signal.

[1071] Optionally, performing the positioning operation in the idle state or the inactive state further includes at least one of the following:

[1072] If a time domain position of the to-be-transmitted uplink positioning reference signal is more than a distance X from a paging occasion, the terminal ignores the to-be-transmitted uplink positioning reference signal;

[1073] If a time domain position of the downlink positioning reference signal is more than a distance X from the paging occasion, the terminal ignores measurement of the downlink positioning reference signal;

[1074] If a time domain position of the report of the position-related information is more than a distance X from the paging occasion, the terminal ignores the report of the position-related information;

[1075] If a time domain position of the to-be-transmitted uplink positioning reference signal is more than a distance X from a time domain position of the downlink positioning reference signal, the terminal ignores the to-be-transmitted uplink positioning reference signal.

[1076] Optionally, the paging occasion is a paging occasion of a camped cell.

[1077] Optionally, the report of the position-related information includes a report of an association relationship between a positioning measurement result and a time error group, and / or an association relationship between an uplink positioning reference signal and a time error group.

[1078] Optionally, in the downlink and uplink positioning method, the association relationship between the uplink positioning reference signal and the time error group is included in the positioning measurement result.

[1079] Optionally, the receiving and measuring the downlink positioning reference signal includes receiving and measuring the downlink positioning reference signal according to a spatial beam relationship between the downlink positioning reference signal and a synchronization signal block (SSB).

[1080] The spatial beam relationship between the downlink positioning reference signal and the synchronization signal block (SSB) is obtained from a spatial QCL relationship between the downlink positioning reference signal and the SSB indicated by a network side device, or is obtained according to a default relationship between downlink positioning reference signal resources and SSBs actually transmitted in a synchronization signal block burst of a TRP where the downlink positioning reference signal resources are located.

[1081] In some other embodiments, the processor 1110 is configured to perform a positioning operation in an idle state, an inactive state, or a connected state, and performing the positioning operation includes:

[1082] Report the position related information, the position related information includes the association relationship between the positioning measurement result and the time error group, and / or the association relationship between the uplink positioning reference signal and the time error group.

[1083] The association relationship is used to assist the network side device to perform positioning calculation, thereby reducing or eliminating the influence of the time error group on the positioning precision and improving the positioning precision.

[1084] Optionally, in the downlink and uplink positioning method, the association relationship between the uplink positioning reference signal and the time error group is contained in the positioning measurement result.

[1085] The embodiment of the application further provides a network side device, including a processor and a communication interface, the processor is used for the network side device to perform a positioning operation, wherein the positioning operation includes at least one of the following: sending a downlink positioning reference signal to a terminal in an idle state or an inactive state; receiving position related information reported by the terminal in the idle state or the inactive state; and measuring an uplink positioning reference signal sent by the terminal in the idle state or the inactive state. The network side device embodiment corresponds to the network side device method embodiment described above, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment and achieve the same technical effects.

[1086] The embodiment of the application further provides a network side device, including a processor and a communication interface, the processor is used for performing a positioning operation, wherein the positioning operation includes: receiving position related information reported by a terminal in an idle state or an inactive state, the position related information including an association relationship between a positioning measurement result and a time error group, and / or an association relationship between an uplink positioning reference signal and the time error group. The network side device embodiment corresponds to the network side device method embodiment described above, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment and achieve the same technical effects.

[1087] Specifically, the embodiment of the application further provides a network side device. As shown in the Figure 12 The network device 1200 includes an antenna 121, a radio frequency device 122, and a baseband device 123. The antenna 121 is connected to the radio frequency device 122. In the uplink direction, the radio frequency device 122 receives information through the antenna 121 and sends the received information to the baseband device 123 for processing. In the downlink direction, the baseband device 123 processes the information to be sent and sends it to the radio frequency device 122. The radio frequency device 122 processes the received information and sends it out through the antenna 121.

[1088] The above frequency band processing device can be located in the baseband device 123, and the method performed by the network side device in the above embodiments can be implemented in the baseband device 123 including the processor 124 and the memory 125.

[1089] The baseband device 123 can include at least one baseband board on which a plurality of chips are arranged, for example, as shown in the figure, one of the chips is the processor 124 connected with the memory 125 to call the program in the memory 125 to perform the operation of the network device shown in the above method embodiments. Figure 12

[1090] The baseband device 123 can further include a network interface 126 for interacting information with the radio frequency device 122, for example, a common public radio interface (CPRI).

[1091] Specifically, the network side device of the embodiment of the present application further includes instructions or programs stored in the memory 125 and executable on the processor 124, and the processor 124 calls the instructions or programs in the memory 125 to perform the method shown in the above method embodiments and achieve the same technical effects, and to avoid repetition, the details are not described here. Figure 9

[1092] The embodiment of the present application further provides a readable storage medium, the readable storage medium stores programs or instructions, the programs or instructions are executed by the processor to implement each process of the above positioning method embodiments, and the same technical effects can be achieved, to avoid repetition, the details are not described here.

[1093] The processor is the processor in the terminal in the above embodiments. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[1094] The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface and the processor are coupled, the processor is used to run programs or instructions to implement each process of the above positioning method embodiments, and the same technical effects can be achieved, to avoid repetition, the details are not described here.

[1095] It should be understood that the chip mentioned in the embodiment of the present application can also be referred to as a system level chip, a system chip, a chip system or a system on chip, etc.

[1096] ​​It should be noted that, in the present document, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element. Furthermore, it is to be understood that the method and apparatus of the present application can be carried out by more than one process, method, article, or apparatus either simultaneously, concurrently, or with intervening action that are carried out at the same time, in any order, or in an overlapping manner. For example, the described method can be performed in a different order or simultaneously, and the various steps can be combined or omitted, or additional steps can be added, without departing from the scope of the described method. Also, features described with respect to certain examples can be combined in other examples.

[1097] From the above description of the embodiments, it is apparent that the above-described method can be implemented by software and necessary universal hardware platform, of course, it can also be implemented by hardware, but in many cases, the former is a better implementation. Based on such understanding, the technical solutions of the present application can be embodied in the form of computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a plurality of instructions for making a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) execute the method described in various embodiments of the present application.

[1098] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-described specific embodiments, which are merely illustrative rather than restrictive, and those of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A positioning method, characterized by, Comprising: If a terminal is configured with an initial downlink bandwidth part (BWP) when the terminal is in an idle state or an inactive state, For the terminal to receive a downlink positioning reference signal (PRS) in the initial downlink BWP, the parameter configuration of the downlink PRS is the same as that of the initial downlink BWP; If the parameter configuration of the downlink PRS is different from that of the initial downlink BWP, the terminal receives the downlink PRS outside the initial downlink BWP; The parameter configuration includes: subcarrier spacing (SCS), cyclic prefix (CP) type; Wherein, the method further comprises: if the downlink PRS and a first signal are repeated, collided or transmitted in the same symbol, the terminal does not receive the downlink PRS, and the first signal includes at least one of the following: SIB1, other SIBs except SIB1, Msg2, MSg4, MsgB, PDCCH scheduling SIB1, synchronization signal block (SSB).

2. The method of claim 1, wherein, Also comprising: The terminal receives first indication information in an idle state or an inactive state, and the first indication information includes at least one of the following: Availability information of a positioning reference signal or availability information of configuration information of the positioning reference signal; Update information of the configuration information of the positioning reference signal; Wherein, the positioning reference signal includes at least one of the following: uplink PRS and downlink PRS.

3. The method of claim 2, wherein, The terminal receives first indication information in an idle state or an inactive state, and the first indication information includes at least one of the following: If the first indication information indicates that the positioning reference signal is not available, the terminal assumes that the positioning reference signal does not exist, or the positioning reference signal is not transmitted, or the positioning reference signal is stopped transmitting, or the positioning reference signal is not transmitted, or the positioning reference signal is stopped transmitting; Or If the first indication information indicates that the configuration information of the positioning reference signal is not available, the terminal assumes that the positioning reference signal corresponding to the configuration information of the positioning reference signal does not exist, or the positioning reference signal corresponding to the configuration information of the positioning reference signal is not transmitted, or the positioning reference signal corresponding to the configuration information of the positioning reference signal is stopped transmitting, or the positioning reference signal corresponding to the configuration information of the positioning reference signal is not transmitted, or the positioning reference signal corresponding to the configuration information of the positioning reference signal is stopped transmitting.

4. The method of claim 2, wherein, The update information of the configuration information of the positioning reference signal includes at least one of the following: Indication information of whether the configuration information of the positioning reference signal is updated; Updated configuration information of the positioning reference signal.

5. The method of claim 4, wherein, The indication information of whether the configuration information of the positioning reference signal is updated or the updated configuration information of the positioning reference signal includes at least one of the following: Turning on or turning off of the configuration information of the positioning reference signal; Increase or decrease of the bandwidth of the positioning reference signal; Increase or decrease of the period of the positioning reference signal; Change of the muting configuration of the positioning reference signal; Change of the spatial relationship configuration of the positioning reference signal; Change of the loss configuration of the positioning reference signal.

6. The method of claim 2, wherein, The positioning reference signal indicated by the first indication information is one of the following granularity: configuration information of the one or more sets of positioning reference signal resources; one or more positioning reference signal resources; one or more sets of positioning reference signal resources; a positioning reference signal under one or more transmission and reception points, TRPs; a positioning reference signal under one or more frequency layers; a positioning reference signal under all frequency layers.

7. The method of claim 2, wherein, The terminal receives the first indication information in an idle state or an inactive state includes at least one of the following: The terminal obtains the first indication information in a paging physical downlink control channel, PDCCH; The terminal obtains the first indication information in a paging physical downlink shared channel, PDSCH, scheduled by the paging PDCCH; The terminal obtains the first indication information in a paging advance indication; The terminal obtains the first indication information in a random access procedure or a small data transmission procedure; The terminal obtains the first indication information in a broadcast message; The terminal obtains the first indication information in a radio resource control, RRC, release message; The terminal obtains the first indication information in a PDCCH and / or a PDSCH according to a downlink monitoring opportunity and / or a monitoring window configured by a network side device; The terminal obtains the first indication information from a PDSCH configured by a network side device.

8. The method of claim 7, wherein, The first indication information is represented by a bit of a short message in a paging PDCCH, or represented by a reserved bit in a paging PDCCH.

9. The method of claim 7, wherein, The terminal obtains indication information of whether the configuration information of the positioning reference signal is updated in a paging PDCCH, and obtains updated configuration information of the positioning reference signal in a paging PDSCH scheduled by the paging PDCCH.

10. The method of claim 2, wherein, The first indication information further includes indication information of whether to enter a connected state and update the configuration information of the positioning reference signal.

11. The method of claim 10, wherein, The terminal further includes the following after receiving the first indication information in an idle state or an inactive state: If the first indication information includes indication information of entering a connected state and updating the configuration information of the positioning reference signal, or the first indication information does not include indication information of not entering a connected state to update the configuration information of the positioning reference signal, the terminal initiates a random access to enter a connected state and update the configuration information of the positioning reference signal.

12. The method of claim 2 or 10, wherein, The terminal further includes the following after receiving the first indication information in an idle state or an inactive state: The terminal sends first feedback information, and the first feedback information is used to indicate that the first indication information has been received.

13. The method of claim 12, wherein, The first feedback information is sent in an idle state or an inactive state or after the terminal enters a connected state.

14. The method of claim 12, wherein, The first feedback information includes at least one of the following: Feedback reason, the feedback reason includes at least one of the following: availability indication feedback of the positioning reference signal, configuration information update feedback of the positioning reference signal, and update feedback of the configuration information of the positioning reference signal initiated by a network side device; Update response of the configuration information of the positioning reference signal, the update response is used to respond to indication information of whether the configuration information of the positioning reference signal is updated in the first indication information.

15. The method of claim 12, wherein, The terminal further includes the following after sending the first feedback information: The terminal receives updated configuration information of the positioning reference signal.

16. The method of claim 15, wherein, The terminal receives updated configuration information of the positioning reference signal in one of the following ways: The terminal obtains updated configuration information of the positioning reference signal in an RRC release message; The terminal obtains updated configuration information of the positioning reference signal in a PDCCH scheduled PDSCH scrambled by a cell radio network temporary identifier (C-RNTI); The terminal receives updated configuration information of the positioning reference signal after entering a connected state.

17. The method of claim 1, wherein, When the terminal is in an idle state or an inactive state, if the terminal is configured with an initial downlink bandwidth part (BWP), the method further includes: The terminal performs BWP switching according to an indication of a network side device, a protocol agreement, or a selection of the terminal, and receives the downlink positioning reference signal on the switched BWP.

18. The method of claim 1, wherein, Further comprising: When the terminal is in an idle state or an inactive state, the terminal reports position-related information, which includes: second indication information, an association relationship between a positioning measurement result and a time error group, and / or an association relationship between an uplink positioning reference signal and a time error group, the second indication information being used to indicate subsequent data transmission information, the subsequent data transmission information including at least one of the following: Whether there is subsequent data transmission; The size of subsequent data transmission; The period of subsequent data transmission; Whether subsequent data transmission requires ACK feedback; The service characteristics of subsequent data to be transmitted; The type of subsequent data to be transmitted, the type including at least one of the following: positioning-related data or non-positioning-related data, control plane data or user plane data, signaling radio bearer, non-access stratum, or data radio bearer data.

19. The method of claim 18, wherein, After reporting the position-related information, further comprising: Transmitting subsequent data to be transmitted on a PUSCH scheduled by a PDCCH configured by a network side device.

20. The method of claim 1, wherein, Further comprising: The terminal sends third indication information, the third indication information being used to indicate that configuration information of a positioning reference signal needs to be updated, the positioning reference signal including at least one of an uplink positioning reference signal and a downlink positioning reference signal.

21. The method of claim 20, wherein, The third indication information is sent by a small data transmission (SDT) method or after the terminal enters a connected state.

22. The method of claim 20, wherein, The third indication information further includes a reason for sending the third indication information, the reason including at least one of the following: The terminal initiates an update of the configuration information of the positioning reference signal; The configuration information of the positioning reference signal is updated; The configuration information of the positioning reference signal is unavailable.

23. The method of claim 20, wherein, The third indication information further includes at least one of the following: RRM measurement results of a serving cell; RRM measurement results of a neighboring cell; Measurement results of a positioning reference signal of a serving cell; Measurement results of a positioning reference signal of a neighboring cell.

24. The method of claim 23, wherein, The measurement result comprises at least one of the following: a reference signal identifier, a measurement result of N best beams higher than a threshold, an indication of N best beams higher than a threshold, a measurement result of a best beam, an indication of a best beam, a measurement result of N beams with the strongest first-arrival-path RSRP, an indication of N beams with the strongest first-arrival-path RSRP, and N is agreed by a protocol, indicated by a network-side device, or selected by the terminal.

25. The method of claim 20, wherein, The third indication information comprises at least one of the following: The terminal transmits the third indication information when at least one of the following conditions is met: If the terminal detects that the adjustment of the timing advance exceeds a first timing advance threshold, and the terminal has not entered a connected state, the terminal transmits the third indication information; If the terminal detects that the difference between two consecutive first measurement values exceeds a first measurement threshold, and the terminal has not entered a connected state, the terminal transmits the third indication information, wherein the first measurement value comprises at least one of the following: measurement information of an SSB, measurement information of a paging or Msg2 or Msg4 or MsgB, and measurement information of a positioning reference signal; If the terminal detects that a second timer has timed out, and the terminal has not entered a connected state, the terminal transmits the third indication information; If the terminal switches from a camped cell, the terminal transmits the third indication information; If the terminal switches from a camped cell, and the downlink positioning reference signal cannot be received, location-related information cannot be reported, or the uplink positioning reference signal cannot be transmitted, the terminal transmits the third indication information; If the terminal moves out of a preconfigured effective area of configuration information of the positioning reference signal, the terminal transmits the third indication information.

26. The method of claim 20, wherein, After the terminal transmits the third indication information, the terminal further comprises the following: The terminal receives first indication information in an idle state or an inactive state, and the first indication information comprises at least one of the following: Availability information of a positioning reference signal or availability information of configuration information of the positioning reference signal; Update information of configuration information of a positioning reference signal; The positioning reference signal comprises at least one of the following: the uplink positioning reference signal and the downlink positioning reference signal.

27. The method of claim 18, wherein, Reporting location-related information comprises reporting measurement information, and the measurement information comprises at least one of the following: RRM measurement results of a serving cell; RRM measurement results of a neighboring cell; Measurement results of a positioning reference signal of a serving cell; Measurement results of a positioning reference signal of a neighboring cell.

28. The method of claim 27, wherein, The measurement information is reported through an SDT mode.

29. The method of claim 1, wherein, Further comprising: The terminal transmits an uplink positioning reference signal in an idle state or an inactive state, and transmitting the uplink positioning reference signal comprises at least one of the following: Transmitting an aperiodic SRS or a semi-persistent SRS.

30. The method of claim 29, wherein, Transmitting the aperiodic SRS comprises at least one of the following: The aperiodic SRS is triggered by a PDCCH scrambled by a C-RNTI; The aperiodic SRS is transmitted before an RRC release message after a successful contention resolution of a PDCCH scrambled by a C-RNTI and / or an aperiodic SRS.

31. The method of claim 29, wherein, Before transmitting the uplink positioning reference signal, the terminal further comprises the following: The terminal transmits request information through an SDT mode, and the request information is used to request a network-side device to trigger an aperiodic SRS or activate a semi-persistent SRS, and the request information comprises at least one of the following: Aperiodic SRS triggering request or semi-persistent SRS activation request; Uplink positioning request; Event information.

32. The method of claim 31, wherein, The request information is transmitted by the SDT mode includes: When an event occurs, the request information is transmitted by the SDT mode, and the event includes at least one of the following: a region event, an action event.

33. The method of claim 1, wherein, Further includes: The terminal sends fourth indication information, and the fourth indication information is used to indicate uplink positioning reference signal timing change.

34. The method of claim 33, wherein, The fourth indication information further includes: The amount of uplink positioning reference signal timing change; The cause of uplink positioning reference signal timing change, which includes at least one of the following: the terminal's resident cell switching or cell reselection, the terminal automatically adjusting the uplink positioning reference signal timing, and the terminal receiving the Timing advance command of the resident cell.

35. The method of claim 33, wherein, The terminal sending the fourth indication information includes: When at least one of the following conditions is met, the fourth indication information is sent: The terminal's resident cell switching or cell reselection; The terminal automatically adjusts the uplink positioning reference signal timing; The terminal receives the Timing advance command of the resident cell.

36. The method of claim 1, wherein, Further includes: The terminal sends fifth indication information, and the fifth indication information is used to indicate resident cell change.

37. The method of claim 36, wherein, The fifth indication information further includes identification information of the resident cell.

38. The method of claim 36, wherein, The terminal sending the fifth indication information includes: If the terminal's resident cell switches, the fifth indication information is sent.

39. The method of claim 36, wherein, Further includes: If the terminal's resident cell switches, and the terminal cannot perform at least one of the following operations, the terminal initiates random access to enter the connected state or sends third indication information: The terminal cannot send uplink positioning reference signals; The terminal cannot measure downlink positioning reference signals; The terminal cannot report location-related information; The third indication information is used to indicate that the configuration information of the positioning reference signal needs to be updated, and the positioning reference signal includes at least one of the uplink positioning reference signal and the downlink positioning reference signal.

40. The method of claim 1, wherein, The terminal performing positioning operation in the idle state or the inactive state further includes at least one of the following: If the time domain position of the to-be-sent uplink positioning reference signal is more than distance X from the paging occasion, the terminal ignores the to-be-sent uplink positioning reference signal; If the time domain position of the downlink positioning reference signal is more than distance X from the paging occasion, the terminal ignores the measurement of the downlink positioning reference signal; If the time domain position of the location-related information report is more than distance X from the paging occasion, the terminal ignores the report of the location-related information; If the time domain position of the to-be-sent uplink positioning reference signal is more than distance X from the time domain position of the downlink positioning reference signal, the terminal ignores the to-be-sent uplink positioning reference signal.

41. The method of claim 40, wherein, The paging occasion is the paging occasion of the resident cell.

42. The method of claim 1, wherein, The receiving and measuring downlink positioning reference signals include: According to the spatial beam relationship between the downlink positioning reference signal and the SSB, the downlink positioning reference signal is received and measured; The spatial beam relationship between the downlink positioning reference signal and the SSB is obtained according to the spatial QCL relationship between the downlink positioning reference signal and the SSB indicated by the network side device; or the spatial beam relationship between the downlink positioning reference signal and the SSB is obtained according to the default relationship between the downlink positioning reference signal resource and the SSB actually transmitted in the TRP under the synchronization signal block burst in which the downlink positioning reference signal resource is located.

43. A method of positioning, comprising: Comprise: The network side device sends a downlink positioning reference signal to a terminal in an idle state or an inactive state; If the terminal is configured with an initial downlink BWP, For sending the downlink positioning reference signal in the initial downlink BWP, the parameter configuration of the downlink positioning reference signal is the same as the parameter configuration of the initial downlink BWP; If the parameter configuration of the downlink positioning reference signal is different from the initial downlink BWP, the downlink positioning reference signal is sent outside the initial downlink BWP; The parameter configuration includes: subcarrier spacing SCS, cyclic prefix CP type; Wherein, in the case of repetition, collision or transmission of the downlink positioning reference signal and the first signal in the same symbol, the downlink positioning reference signal is not received by the terminal, and the first signal includes at least one of the following: SIB1, other SIBs except SIB1, Msg2, MSg4, MsgB, PDCCH scheduling SIB1, synchronization signal block SSB.

44. The method of claim 43, wherein, Also include: The network side device sends first indication information to a terminal in an idle state or an inactive state, and the first indication information includes at least one of the following: Availability information of the positioning reference signal or availability information of configuration information of the positioning reference signal; Update information of the configuration information of the positioning reference signal; The positioning reference signal includes at least one of the following: uplink positioning reference signal and downlink positioning reference signal.

45. The method of claim 44, wherein, The update information of the configuration information of the positioning reference signal includes at least one of the following: Indication information of whether the configuration information of the positioning reference signal is updated; Updated configuration information of the positioning reference signal.

46. The method of claim 44, wherein, The first indication information further includes indication information of whether to enter a connected state and update the configuration information of the positioning reference signal.

47. The method of claim 44, wherein, The network side device sends first indication information to a terminal in an idle state or an inactive state, and the first indication information includes at least one of the following: The network side device receives first feedback information sent by the terminal, and the first feedback information is used to indicate that the first indication information has been received.

48. The method of claim 47, wherein, The first feedback information includes at least one of the following: Feedback reason, the feedback reason includes at least one of the following: availability indication feedback of the positioning reference signal, configuration information update feedback of the positioning reference signal, network side device initiated configuration information update feedback of the positioning reference signal; Update response of the configuration information of the positioning reference signal, the update response is used to respond to the indication information of whether the configuration information of the positioning reference signal is updated in the first indication information.

49. The method of claim 47, wherein, The network side device receives first feedback information sent by the terminal, and the first feedback information is used to indicate that the first indication information has been received. The network side device sends the terminal updated configuration information of the positioning reference signal.

50. The method of claim 43, wherein, Also include: Receiving position related information reported by the terminal in idle state or inactive state, the position related information comprising: second indication information, an association relationship between a positioning measurement result and a time error group, and / or an association relationship between an uplink positioning reference signal and a time error group, the second indication information being used for indicating subsequent data transmission information, the subsequent data transmission information comprising at least one of the following: whether there is subsequent data transmission; a size of subsequent data transmission; a period of subsequent data transmission; whether ACK feedback is required for subsequent data transmission; a service characteristic of subsequent data to be transmitted; a type of subsequent data to be transmitted, the type comprising at least one of the following: positioning related data or non-positioning related data, control plane data or user plane data, signaling radio bearer, non-access stratum or data radio bearer data.

51. The method of claim 50, wherein, Further comprising: receiving, by the network side device, subsequent data to be transmitted on a PDCCH scheduled PUSCH configured by the network side device.

52. The method of claim 43, wherein, Further comprising: receiving, by the network side device, third indication information sent by the terminal, the third indication information being used for indicating that configuration information of a positioning reference signal needs to be updated, the positioning reference signal comprising at least one of an uplink positioning reference signal and a downlink positioning reference signal.

53. The method of claim 52, wherein, The third indication information further comprises a reason for sending the third indication information, the reason comprising at least one of the following: the terminal initiates update of the configuration information of the positioning reference signal, the configuration information of the positioning reference signal is updated, and the configuration information of the positioning reference signal is unavailable.

54. The method of claim 52, wherein, The third indication information further comprises at least one of the following: an RRM measurement result of a serving cell; an RRM measurement result of a neighboring cell; a measurement result of a positioning reference signal of a serving cell; a measurement result of a positioning reference signal of a neighboring cell.

55. The method of claim 52, wherein, Further comprising, after the network side device receives the third indication information sent by the terminal: sending first indication information to the terminal, the first indication information comprising at least one of the following: availability information of a positioning reference signal or availability information of configuration information of the positioning reference signal; update information of configuration information of a positioning reference signal; wherein the positioning reference signal comprises at least one of the following: the uplink positioning reference signal and the downlink positioning reference signal.

56. The method of claim 50, wherein, The position related information comprises measurement information, the measurement information comprising at least one of the following: an RRM measurement result of a serving cell; an RRM measurement result of a neighboring cell; a measurement result of a positioning reference signal of a serving cell; a measurement result of a positioning reference signal of a neighboring cell.

57. The method of claim 43, wherein, Further comprising: measuring an uplink positioning reference signal sent by the terminal in idle state or inactive state, the uplink positioning reference signal comprising: aperiodic SRS or semi-persistent SRS.

58. The method of claim 43, wherein, Further comprising: receiving, by the network side device, fourth indication information sent by the terminal, the fourth indication information being used for indicating timing change of an uplink positioning reference signal.

59. The method of claim 43, wherein, Further comprising: receiving, by the network side device, fifth indication information sent by the terminal, the fifth indication information being used for indicating change of a camped cell.

60. The method of claim 43, wherein, Receiving position related information reported by the terminal in idle state or inactive state comprises: Receiving, by a network device, an association between a positioning measurement result reported by a terminal in an idle state or an inactive state and a time error group, and / or an association between an uplink positioning reference signal and a time error group.

61. A positioning device, characterized by The method comprises: A positioning module configured to, when the terminal is in an idle state or an inactive state, if the terminal is configured with an initial downlink bandwidth part (BWP), for receiving a downlink positioning reference signal within the initial downlink BWP, the parameter configuration of the downlink positioning reference signal being the same as that of the initial downlink BWP; if the parameter configuration of the downlink positioning reference signal is different from that of the initial downlink BWP, receiving the downlink positioning reference signal outside the initial downlink BWP; the parameter configuration comprising: a subcarrier spacing (SCS), a cyclic prefix (CP) type; 62. A positioning device, characterized by wherein, if the downlink positioning reference signal and a first signal are repeated, collide or transmitted in a same symbol, the terminal does not receive the downlink positioning reference signal, and the first signal comprises at least one of: a SIB1, a SIB other than the SIB1, a Msg2, a Msg4, a MsgB, a PDCCH scheduling the SIB1, a synchronization signal block (SSB). The method comprises: A positioning module configured to send, to a terminal in an idle state or an inactive state, a downlink positioning reference signal; if the terminal is configured with an initial downlink BWP, for sending the downlink positioning reference signal within the initial downlink BWP, the parameter configuration of the downlink positioning reference signal being the same as that of the initial downlink BWP; if the parameter configuration of the downlink positioning reference signal is different from that of the initial downlink BWP, sending the downlink positioning reference signal outside the initial downlink BWP; the parameter configuration comprising: a subcarrier spacing (SCS), a cyclic prefix (CP) type; 63. A terminal, characterized by wherein, if the downlink positioning reference signal and a first signal are repeated, collide or transmitted in a same symbol, the downlink positioning reference signal is not received by the terminal, and the first signal comprises at least one of: a SIB1, a SIB other than the SIB1, a Msg2, a Msg4, a MsgB, a PDCCH scheduling the SIB1, a synchronization signal block (SSB). 64.A network side device, characterized in that, A processor, a memory, and a program or instructions stored in the memory and executable on the processor, the program or instructions being executed by the processor to implement the steps of the positioning method according to any one of claims 1 to 42.

65. A readable storage medium characterized by, A processor, a memory, and a program or instructions stored in the memory and executable on the processor, the program or instructions being executed by the processor to implement the steps of the positioning method according to any one of claims 43 to 60. A readable storage medium storing a program or instructions, the program or instructions being executed by a processor to implement the positioning method according to any one of claims 1 to 42, or to implement the steps of the positioning method according to any one of claims 43 to 60.

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