Time error group indication method and device, terminal and network side equipment

Abstract

The invention discloses a time error group indication method and device, a terminal and network side equipment, and belongs to the technical field of communication, and the time error group indication method comprises the steps that the terminal indicates first information to the network side equipment; wherein the first information is used for assisting the network side equipment to carry out positioning calculation; and / or the terminal receives second information sent by the network side equipment; wherein the second information is used for assisting the terminal and / or the network side equipment to carry out calculation related to positioning; in the embodiment of the invention, the terminal assists the network side equipment in positioning calculation by indicating the first information to the network side equipment and / or receiving the second information, so that the influence of the time error group on the positioning precision is reduced or eliminated, and the positioning precision is improved.

Description

[0001] This application is a divisional application of Chinese patent application CN202110292507.9. Technical Field

[0002] This application belongs to the field of communication technology, and specifically relates to a time error group indication method, device, terminal and network side equipment. Background Technology

[0003] From a signal transmission perspective, there is a time delay between the time it takes to generate a digital signal in the baseband and the time it takes to transmit a radio frequency (RF) signal from the Tx antenna. To support positioning, the user equipment (UE) or transmission and receiving points (TRPs) can internally calibrate / compensate for the Tx time delay in the transmission of the downlink positioning reference signal (DL PRS) or uplink sounding reference signal (UL SRS). The remaining Tx time delay after calibration or the uncalibrated Tx time delay is defined as the Tx timing error. From a signal reception perspective, there is a time delay between receiving an RF signal from the Rx antenna and baseband processing. To support positioning, the UE or TRP can internally calibrate / compensate for the Rx time delay in the measurement results of the DL PRS or UL SRS before reporting the measurement. The remaining Rx time delay after calibration or the uncalibrated Rx time delay is defined as the Rx timing error.

[0004] For time-based positioning methods, such as RTT-based and TDOA-based methods, the positioning accuracy will be affected by the TRP and the UE's Rx / Tx timing error when calculating the UE's location. Summary of the Invention

[0005] This application provides a time error group indication method, apparatus, terminal, and network-side equipment, which can solve the problem of the impact of TRP and UE Rx / Tx timing error on positioning accuracy in the positioning method.

[0006] Firstly, a method for indicating time error groups is provided, the method comprising: The terminal indicates first information to the network-side device; wherein, the first information is used to assist the network-side device in performing positioning calculations; The first information includes at least one of the following: The first correlation relationship is used to indicate the correlation between the uplink positioning reference signal and the first time error group (TEG). The second correlation is used to indicate the correlation between the downlink positioning measurement results and the second TEG.

[0007] Secondly, a time error group indication method is provided, applied to a network-side device, wherein the network-side device is a base station, and the method includes: The base station indicates third information to the location server, and the third information is used to assist the location server in performing positioning calculations. The third information includes at least one of the following: The third correlation is used to indicate the correlation between the downlink positioning reference signal and the third time error group (TEG). The fourth association relationship is used to indicate the association relationship between the uplink positioning measurement results and the fourth TEG; Uplink positioning measurement results.

[0008] Thirdly, a time error group indication method is provided, applied to a network-side device, wherein the network-side device is a location server, and the method includes: The location server obtains first information indicated by the terminal, and the first information is used to assist the location server or base station in performing positioning calculations. The first information includes at least one of the following: The first correlation relationship is used to indicate the correlation between the uplink positioning reference signal and the first time error group (TEG). The second correlation is used to indicate the correlation between the downlink positioning measurement results and the second TEG.

[0009] Fourthly, a time error group indication device is provided, the device comprising: A first indicating unit is used to indicate first information to a network-side device; wherein the first information is used to assist the network-side device in performing positioning calculations. The first information includes at least one of the following: The first correlation relationship is used to indicate the correlation between the uplink positioning reference signal and the first time error group (TEG). The second correlation relationship is used to indicate the correlation between the downlink positioning measurement results and the second TEG; And / or, The first receiving unit is configured to receive second information sent by the network-side device, wherein the second information is used to assist the terminal and / or the network-side device in performing location-related calculations. The second information is used to indicate that the downlink positioning reference signal resource set and / or the downlink positioning reference signal resources are associated with the antenna port of the transmit / receive point (TRP).

[0010] Fifthly, a time error group indication device is provided, the device comprising: The third indication unit is used to indicate third information to the location server, the third information being used to assist the location server in performing positioning calculations. The third information includes at least one of the following: The third correlation is used to indicate the correlation between the downlink positioning reference signal and the third time error group (TEG). The fourth association relationship is used to indicate the association relationship between the uplink positioning measurement results and the fourth TEG; Uplink positioning measurement results; And / or, The fourth indication unit is used to indicate second information to the terminal, wherein the second information is used to indicate that the downlink positioning reference signal resource set and / or the downlink positioning reference signal resources are associated with the antenna port of the transmit / receive point TRP.

[0011] Sixthly, a time error group indication device is provided, the device comprising: The second acquisition unit is used to acquire first information indicated by the terminal, the first information being used to assist the location server or base station in performing positioning calculations. The first information includes at least one of the following: The first correlation relationship is used to indicate the correlation between the uplink positioning reference signal and the first time error group (TEG). The second correlation relationship is used to indicate the correlation between the downlink positioning measurement results and the second TEG; And / or, The sixth indication unit is used for the terminal to indicate second information, wherein the second information is used to indicate that the downlink positioning reference signal resource set and / or the downlink positioning reference signal resources are associated with the antenna port of the transmit / receive point (TRP).

[0012] In a seventh aspect, a terminal is provided, the terminal including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method described in the first aspect.

[0013] Eighthly, a terminal is provided, including a processor and a communication interface, wherein the processor is configured to indicate first information to a network-side device, and the communication interface is configured to receive second information sent by the network-side device. The first information includes at least one of the following: a first association relationship, indicating the association relationship between an uplink positioning reference signal and a first time error group (TEG); a second association relationship, indicating the association relationship between a downlink positioning measurement result and a second TEG; wherein the second information assists the terminal and / or the network-side device in performing positioning-related calculations; and the second information indicates that the downlink positioning reference signal resource set and / or the downlink positioning reference signal resources are associated with the antenna port of the transmit / receive point (TRP).

[0014] A ninth aspect provides a network-side device including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method described in the second aspect, or implement the steps of the method described in the third aspect.

[0015] In a tenth aspect, a network-side device is provided, including a processor and a communication interface, wherein the processor is configured to indicate third information to a location server, the third information being used to assist the location server in performing positioning calculations; wherein the third information includes at least one of the following: a third association relationship, the third association relationship being used to indicate the association relationship between a downlink positioning reference signal and a third time error group (TEG); a fourth association relationship, the fourth association relationship being used to indicate the association relationship between an uplink positioning measurement result and a fourth TEG; and / or, the processor is configured to indicate second information to a terminal, wherein the second information is used to indicate that a downlink positioning reference signal resource set and / or a downlink positioning reference signal resource is associated with an antenna port of a transmit / receive point (TRP).

[0016] Eleventhly, a network-side device is provided, including a processor and a communication interface, wherein the processor is configured to acquire first information indicated by a terminal, the first information being used to assist the location server or base station in performing positioning calculations; wherein the first information includes at least one of the following: a first association relationship, the first association relationship being used to indicate the association relationship between an uplink positioning reference signal and a first time error group (TEG); a second association relationship, the second association relationship being used to indicate the association relationship between a downlink positioning measurement result and a second TEG; and / or, the location server indicates second information to the terminal, wherein the second information is used to indicate that the downlink positioning reference signal resource set and / or the downlink positioning reference signal resource is associated with the antenna port of the transmit / receive point (TRP).

[0017] In a twelfth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the time error group indication method as described in the first aspect, or the steps of the time error group indication method as described in the second aspect, or the steps of the time error group indication method as described in the third aspect.

[0018] In a thirteenth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run a program or instructions to implement the time error group indication method as described in the first aspect, or the time error group indication method as described in the second aspect, or the time error group indication method as described in the third aspect.

[0019] In a fourteenth aspect, a computer program / program product is provided, the computer program / program product being stored in a non-volatile storage medium, the program / program product being executed by at least one processor to implement the steps of the time error group indication method as described in the first aspect, or the steps of the time error group indication method as described in the second aspect, or the steps of the time error group indication method as described in the third aspect.

[0020] In this embodiment, the terminal assists the network-side device in performing positioning calculations by indicating first information to the network-side device and / or receiving second information, thereby reducing or eliminating the impact of time error groups on positioning accuracy and improving positioning accuracy. Attached Figure Description

[0021] Figure 1 This is a block diagram of a wireless communication system applicable to embodiments of this application; Figure 2 One of the flowcharts for the time error group indication method provided in the embodiments of this application; Figure 3 A schematic diagram illustrating the event triggering indication method provided in the embodiments of this application; Figure 4 A schematic diagram illustrating a non-periodic indication method provided in an embodiment of this application; Figure 5 A schematic diagram illustrating the periodic indication method provided in the embodiments of this application; Figure 6 A second schematic flowchart illustrating the time error group indication method provided in this application embodiment; Figure 7 The third flowchart illustrating the time error group indication method provided in this application embodiment; Figure 8 One of the structural schematic diagrams of the time error group indicator device provided in the embodiments of this application; Figure 9 A second schematic diagram of the time error group indicator device provided in the embodiments of this application; Figure 10 The third schematic diagram of the time error group indicator device provided in the embodiments of this application; Figure 11 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application; Figure 12 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application; Figure 13 This is a schematic diagram of the network-side device provided in an embodiment of this application. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0023] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0024] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and NR terminology is used in most of the following description; however, these technologies can also be applied to applications beyond NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0025] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as a terminal device or user equipment (UE). Terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), etc. Wearable devices include smartwatches, wristbands, headphones, glasses, etc. It should be noted that this application does not limit the specific type of terminal 11. Network-side device 12 can be a base station or a core network. The base station can be referred to as a node B, evolved node B, access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), B node, evolved B node (eNB), home B node, home evolved B node, WLAN access point, WiFi node, transmitting and receiving point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this application embodiment, only the base station in the NR system is used as an example, but the specific type of base station is not limited.

[0026] The time error group indication method, apparatus, terminal and network-side equipment provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0027] Figure 2 This is one of the flowcharts illustrating the time error group indication method provided in this application. Figure 2 As shown, the time error group indication method includes the following steps: Step 200: The terminal indicates first information to the network-side device; wherein, the first information is used to assist the network-side device in performing positioning calculations; The first information includes at least one of the following: The first correlation relationship is used to indicate the correlation between the uplink positioning reference signal and the first time error group (TEG). The second correlation is used to indicate the correlation between the downlink positioning measurement results and the second TEG.

[0028] The Time Error Group (TEG) can also be referred to as the panel (i.e., the antenna panel).

[0029] The time error group includes at least one of the following: Tx TEG, Rx TEG, RxTx TEG, {Rx TEG, Tx TEG}.

[0030] For the terminal side, the time error group includes at least one of the following: UE Tx TEG, UE Rx TEG, UE Rx Tx TEG, {UE Rx TEG, UE Tx TEG}; for the network side, the time error group includes one of the following: TRP TxTEG, TRP Rx TEG, TRP RxTx TEG, {TRP Rx TEG, TRP Tx TEG}.

[0031] In the embodiments of this application, the first TEG includes at least one of the following: Tx TEG, RxTx TEG. That is, UE TxTEG, UE RxTx TEG.

[0032] Optionally, the first TEG is the time error group for the terminal to send uplink positioning reference signals.

[0033] The second TEG includes at least one of the following: Rx TEG, RxTx TEG, {Rx TEG, Tx TEG}, that is, UE RxTEG, UE RxTx TEG, {UE Rx TEG, UE Tx TEG}.

[0034] Optionally, the second TEG is the time error group for the terminal to receive the downlink positioning reference signal.

[0035] It should be noted that the terminal in this application embodiment is not limited to a connected terminal, an idle terminal, or a deactivated terminal. The network-side device in this application embodiment is a Location Management Function (LMF) or a base station. The base station includes a serving gNB and / or neighboring gNBs.

[0036] Optionally, in the idle or inactive state, the terminal may send information to the network device in a manner including, but not limited to, at least one of the following: SDT (small data transmission), the same manner as the location measurement information reporting in the idle or inactive state, etc.; the network device may send information to the terminal device in a manner including, but not limited to, at least one of the following: broadcast message, RRC release message, messages in random access (such as Msg2, MsgB, Msg4), paging message, etc.

[0037] Optionally, the signaling between the location server and the UE may include, but is not limited to, at least one of the following: LTE Positioning Protocol (LPP), NR Positioning Protocol (NRPP), NR Positioning Protocol Annex (NRPPa) and (signaling between gNB and UE), or LTE Positioning Protocol Annex (LPPa) and (signaling between gNB and UE).

[0038] Downlink signaling between the gNB and the UE includes, but is not limited to, at least one of the following: RRC, MAC CE, DCI, random access messages (including, but not limited to, Msg2, Msg4, MsgB), broadcast messages, and Paging.

[0039] The uplink signaling between the UE and the gNB includes, but is not limited to, at least one of the following: RRC, MAC CE, UCI, and random access messages, including, but not limited to, Msg1, Msg3, and MsgA.

[0040] Signaling between the gNB and the location server includes, but is not limited to, one of the following: LPPa, NRPPa.

[0041] To reduce or eliminate the impact of Rx / Tx timing error on positioning accuracy, in this embodiment, the terminal indicates to the network-side device the correlation between the uplink positioning reference signal and the first time error group (TEG), and / or the correlation between the downlink positioning measurement result and the second TEG, to assist the network-side device in performing positioning calculations.

[0042] The association can be represented by the associated TEG identifier ID, or by grouping uplink positioning reference signals or downlink positioning measurement results of the same TEG into a group, or by other means.

[0043] The uplink positioning reference signal can be an SRS or other signals that can be used for uplink positioning. The SRS can be a positioning SRS or an SRS used for multi-antenna transmission.

[0044] Among them, the downlink positioning measurement result is obtained by the terminal measuring the received downlink positioning reference signal.

[0045] The downlink positioning reference signal can be PRS or other signals that can be used for downlink positioning.

[0046] Downlink positioning measurement results include at least one of the following: downlink reference signal time difference (DL RSTD), UE receive-transmit time difference (UE Rx-Tx time difference) measurement results, and other types of downlink measurement results.

[0047] Other types of downlink measurement results can be DL-RSRP, and this application does not impose specific restrictions on them.

[0048] Optionally, during downlink positioning, the same UE may receive downlink positioning reference signals, such as PRS, from multiple TRPs and obtain multiple downlink positioning measurement results. If multiple downlink positioning measurement results can be associated with the same UE RxTEG, subtraction can be performed when processing multiple downlink positioning measurement results to eliminate the same terminal reception time error (UE Rxtiming error). Optionally, when reporting downlink positioning measurement results to network-side equipment (such as a location server), the terminal can indicate the association between the downlink positioning measurement results and the UE RxTEG to assist the network equipment in completing further positioning calculations.

[0049] Optionally, during uplink positioning, when the UE sends an uplink positioning reference signal (such as SRS), it can indicate the association between the SRS and the UE TxTEG.

[0050] Optionally, during downlink + uplink positioning, such as the RTT positioning method, the UE will report the measurement results of the Rx-Tx time difference, which can indicate the correlation between the measurement results and the UE Tx TEG and UE Rx TEG.

[0051] And / or, Step 201: The terminal receives second information sent by the network-side device, wherein the second information is used to assist the terminal and / or the network-side device in performing relevant location calculations; The positioning calculations include positioning calculations based on downlink angle of arrival, or positioning calculations related to the antenna port.

[0052] The second information is used to indicate that the downlink positioning reference signal resource set and / or the downlink positioning reference signal resources are associated with the antenna port of the transmit / receive point (TRP).

[0053] In this embodiment of the application, by indicating first information to the network-side device and / or receiving second information, the network-side device is assisted in performing positioning calculations, thereby reducing or eliminating the impact of time error groups on positioning accuracy and improving positioning accuracy.

[0054] Optionally, after receiving the second information sent by the network-side device, the terminal performs one of the following: The UE assumes that multiple downlink positioning reference signal resource sets of the TRP are associated with multiple antenna ports of the TRP; The UE assumes that multiple downlink positioning reference signal resources in the downlink positioning reference signal resource set are associated with multiple antenna ports of the TRP; The UE assumes that multiple duplicate downlink positioning reference resources corresponding to the same downlink positioning reference resource identifier are associated with multiple antenna ports of the TRP.

[0055] The association relationship is the issuance of PRS resource sets, PRS resources, and / or duplicate PRS resources from a certain port of TRP.

[0056] Optionally, the multiple downlink positioning reference signal resource sets of the TRP are associated with multiple antenna ports of the TRP, including one of the following: Different downlink positioning reference signal resource sets are associated with different groups of TRP antenna ports; for example, 2 PRS resource sets, 8 TRP ports. Each resource set corresponds to 2 TRP port groups, and one TRP port group contains 4 antenna ports.

[0057] At least one downlink positioning reference signal resource set is associated with one group of TRP antenna ports; for example, two PRS resource sets and eight TRP ports. One PRS resource set is associated with all TRP ports, and another PRS resource set is also associated with all TRP ports.

[0058] The antenna port group of a TRP includes at least one TRP antenna port. Optionally, the antenna port group of a TRP may also correspond to one TRP panel or one TRP Tx TEG (or TRP RxTx TEG).

[0059] Optionally, the multiple downlink positioning reference signal resources in the downlink positioning reference signal resource set are associated with multiple antenna ports of the TRP, including one of the following: In a downlink positioning reference signal resource set, different downlink positioning reference signal resources are associated with different TRP antenna ports; for example, a PRS resource set has 8 PRS resources, and the PRS resource set is associated with 8 TRP ports. Each resource corresponds to 1 TRP port.

[0060] Downlink positioning reference signal resources are concentrated, and at least one downlink positioning reference signal resource is associated with the antenna port of the same TRP; One downlink positioning reference signal resource is associated with one or more TRP antenna ports.

[0061] For example, a PRS resource set has 8 PRS resources, and the PRS resource set is associated with 4 TRP ports. Every 2 PRS resources correspond to 1 TRP port. Alternatively, one PRS resource corresponds to 1 TRP port, another PRS resource corresponds to another TRP port, and the remaining 6 PRS resources share the remaining 2 ports equally.

[0062] The correspondence / association method between PRS resources and TRP ports can be agreed upon by the protocol or indicated by the network-side device (such as indicating that a certain PRS resource corresponds to a certain TRP antenna port).

[0063] Optionally, multiple duplicate downlink positioning reference signal resources corresponding to the same downlink positioning reference signal resource identifier are associated with multiple antenna ports of the TRP, including one of the following: Different duplicate downlink positioning reference signal resources are associated with different TRP antenna ports; for example, one PRS resource is associated with two ports. The same PRS resource identifier corresponds to two duplicate PRS resources, each corresponding to one port.

[0064] At least one duplicate downlink positioning reference signal resource is associated with the same TRP antenna port. For example, one PRS resource is associated with one port. The same PRS resource identifier corresponds to two duplicate PRS resources, and the two duplicate PRS resources correspond to the same port. Alternatively, one PRS resource is associated with two ports. The same PRS resource identifier corresponds to four duplicate PRS resources, then two duplicate PRS resources correspond to the same port, and the other two duplicate resources correspond to another port.

[0065] Optionally, the downlink positioning reference signal resource set, and / or downlink positioning reference signal resources, and / or the repetition of downlink positioning reference signal resources should be associated with all antenna ports of the TRP.

[0066] Optionally, the second information may further include: a downlink positioning reference signal resource set and / or a functional indication of the downlink positioning reference signal resource.

[0067] Optionally, after receiving the second information sent by the network-side device, the terminal further includes: The terminal measures the channel at different ports and performs a codebook traversal process to obtain the optimal codebook and / or optimal angle of departure (AOD) that matches the channel. After the terminal receives the second information sent by the network device, the terminal's behavior can be determined by at least one of the following: protocol agreement, network indication, or terminal selection.

[0068] Optionally, the second information may also include at least one of the following: The association between the downlink positioning reference signal resource set and the antenna port of the TRP; The relationship between downlink positioning reference signal resources and the antenna port of TRP; The association between repeated downlink positioning reference signal resources and the antenna port of the TRP.

[0069] Optionally, before the terminal indicates the first information to the network-side device, it further includes: The terminal receives a first request message sent by the network-side device, the first request message being used to request the terminal to indicate the first information.

[0070] Optionally, for scenarios where positioning accuracy requirements are not high, the network-side device can require the terminal not to provide initial information. Therefore, the 'first request message' can be disabled.

[0071] Optionally, the “network-side device indication” described when the terminal indicates the first information in this application can be included in the first request message.

[0072] The following section further elaborates on how the terminal indicates the first information to the network-side device.

[0073] In some optional embodiments, the first information includes: a first association relationship, wherein the terminal instructs the network-side device to indicate the first information including at least one of the following: The first correlation is indicated by the sequence of uplink positioning reference signals; The first association relationship is indicated by the mapping method of the uplink positioning reference signal; The first association is indicated by the event triggering method; Non-periodic indicators of primary correlation; Periodicity indicates the first correlation.

[0074] The uplink positioning reference signal can be an SRS or other signals that can be used for uplink positioning.

[0075] It should be noted that the uplink positioning reference signal can be an uplink positioning reference signal resource or an uplink positioning reference signal resource set. There can be one or more uplink positioning reference signal resources, and there can be one or more uplink positioning reference signal resource sets.

[0076] Optionally, an SRS can be an SRS resource or an SRS resource set. There can be one or more SRS resources, and there can be one or more SRS resource sets.

[0077] Optionally, the terminal indicates a first association relationship, that is, the terminal indicates the association relationship between the uplink positioning reference signal and the first time error group (TEG), including at least one of the following: The first correlation is indicated by the sequence of uplink positioning reference signals.

[0078] Optionally, the association between the uplink positioning reference signal and the first TEG is represented by the sequence of the uplink positioning reference signal. For example, for the same SRS resource, the Tx TEG changes between different periods (or SRS instances), and the sequence on different periods of the same SRS resource will be different. It can be understood that the SRS used for positioning currently only supports one port, and the SRS associated with different TEGs can be regarded as extending the SRS to multiple ports. The SRS associated with each port is equivalent to the SRS associated with each Tx TEG.

[0079] Optionally, the sequence of the uplink positioning reference signal is generated based on the cyclic shift corresponding to the first TEG associated with the uplink positioning reference signal, wherein different first TEGs correspond to different cyclic shifts.

[0080] Among them, the different cyclic shifts that distinguish the different first TEGs are related to the number of Tx TEGs.

[0081] In one implementation, taking the uplink positioning reference signal (SRS) as an example, the network indicates or the protocol agrees on a set of cyclic shifts, and the cyclic shift values ​​corresponding to the SRS of different TEGs are used to generate SRS sequences. When TEG0 is associated with an SRS, the UE uses the cyclic shift corresponding to TEG0 to generate a sequence and send it; when TEG1 is associated with an SRS, the UE uses the cyclic shift corresponding to TEG1 to generate a sequence and send it.

[0082] Optionally, the first association relationship can be indicated by mapping the uplink positioning reference signal.

[0083] Optionally, the association between the uplink positioning reference signal and the first TEG is represented by a mapping method of the uplink positioning reference signal. For example, for the same SRS resource, the Tx TEG changes between different periods, and the mapping pattern of the same SRS resource will be different in different periods.

[0084] Optionally, the mapping method of the uplink positioning reference signal is determined according to the time-frequency position corresponding to the first TEG associated with the uplink positioning reference signal, wherein different first TEGs are distinguished by frequency division multiplexing (FDM).

[0085] Among them, the FDM method distinguishes different TEGs and the number of Tx TEGs.

[0086] In one optional implementation, SRS associated with different TEGs can be mapped to different resource elements (REs) on the same symbol and distinguished by FDM. When TEG1 is associated with an SRS, the UE uses the time-frequency location corresponding to TEG1 to transmit the SRS.

[0087] Optionally, when the number of first TEGs supported by the UE is large, multiple first TEGs can be distinguished by combining the sequence of uplink positioning reference signals and the mapping method.

[0088] Optionally, before the terminal indicates the first association relationship through the sequence of uplink positioning reference signals or the mapping method of uplink positioning reference signals, it further includes: The terminal receives a first indication signaling sent by the network-side device. The first indication signaling is used to instruct the terminal to enable or activate the function of indicating a first association relationship through a sequence and / or mapping method of uplink positioning reference signals. The terminal enables the function of indicating the first association relationship through the sequence and / or mapping method of uplink positioning reference signals.

[0089] Optionally, the network-side device can indicate whether to enable the function of "representing the association between SRS and TEG using sequence and / or mapping", for example, by indicating it with a switch.

[0090] In one implementation, when the serving gNB receives a request from the location server, such as a request to obtain the association relationship between the SRS and TxTEG (in real time), the serving gNB can instruct the UE to enable the switch. The UE then indicates the association relationship between the SRS and TxTEG according to the instruction via a sequence and / or mapping method. For example, in scenarios where the UE only supports / associates one TxTEG, or in scenarios where positioning accuracy requirements are not high, the switch is set to "off" or the default indication.

[0091] Optionally, the uplink positioning reference signal sequence and / or the mapping method of the uplink positioning reference signal are obtained by at least one of the following methods: protocol agreement, network indication, and terminal selection. That is, whether the terminal uses a "sequence method," a "mapping method," or a "sequence + mapping" method to represent the relationship between the uplink positioning reference signal and the first TEG can be determined by the protocol agreement, network indication, and / or terminal selection.

[0092] Optionally, the association between the uplink positioning reference signal and the first TEG can also be indicated by display, including at least one of the following methods: The first association is indicated by the event triggering method; Non-periodic indicators of primary correlation; Periodicity indicates the first correlation.

[0093] Optionally, indicating the first association through an event-triggered method includes: If the first TEG associated with the uplink positioning reference signal changes during the transmission of the uplink positioning reference signal, the terminal is triggered to send a TEG indication signaling. The TEG indication signaling is used to indicate that the first association relationship or the first association relationship has changed.

[0094] For example, during SRS transmission, if the TEG associated with the SRS changes, the UE is triggered to send a TEG indication signaling message to indicate the association relationship between the SRS and the TEG or the change in the association relationship.

[0095] Optionally, before the terminal sends the TEG indication signaling, it further includes: The terminal sends a second indication signaling message at least once, the second indication signaling message being used to indicate the first association relationship.

[0096] Understandably, before the event trigger indication, the UE indicates the association between the uplink positioning reference signal and the first TEG at least once.

[0097] Optionally, the content of the TEG indication signaling includes one of the following: The association between the uplink positioning reference signal of the most recent uplink positioning reference signal instance before the TEG indication signaling and the first TEG has changed, and the TEG indication signaling continues to be effective until the most recent second uplink positioning reference signal instance before the next TEG indication signaling. The association between the uplink positioning reference signal and the first TEG has changed, indicating that the TEG indication signaling continues to be effective until the most recent uplink positioning reference signal instance before the next TEG indication signaling.

[0098] The change in correlation means that the correlation between the uplink positioning reference signal and the first TEG in this cycle has changed compared to the correlation between the uplink positioning reference signal and the first TEG in the previous cycle.

[0099] It is understandable that "the association between the uplink positioning reference signal of the most recent uplink positioning reference signal instance before the TEG indication signaling and the first TEG has changed" can also be expressed as "the association between the uplink positioning reference signal of the most recent uplink positioning reference signal instance before the TEG indication signaling and the first TEG".

[0100] The statement “The association between the uplink positioning reference signal of the most recent uplink positioning reference signal instance after the TEG indication signaling and the first TEG has changed” can also be expressed as “The association between the uplink positioning reference signal of the most recent uplink positioning reference signal instance after the TEG indication signaling and the first TEG”.

[0101] The TEG indication signaling not only indicates the association relationship or changes in the association relationship, but also indicates its duration of effectiveness. During the duration of effectiveness, the association relationship between the uplink positioning reference signal and the first TEG remains unchanged.

[0102] Understanding the relationship between the uplink reference signal of a certain uplink positioning reference signal instance and the first TEG: Taking SRS as an example, it can be the association relationship between all SRS resources or SRS resource sets in this SRS instance and the first TEG; it can also be the association relationship between a certain SRS resource or SRS resource set and the first TEG; or it can be the association relationship between several SRS resources or SRS resource sets and the first TEG.

[0103] The following example illustrates how to indicate the first association through event triggering. Figure 3This is a schematic diagram of the event triggering indication method provided in the embodiments of this application.

[0104] Method 1: A certain SRS instance X (e.g. Figure 3 If, in SRS instance 3, the association between the SRS and Tx TEG changes compared to SRS instance A (an event occurs, the event information can be agreed upon by the protocol or indicated by the network), then the UE is triggered to indicate the association between the SRS and Tx TEG in SRS instance X, or the change in the association. SRS instance A can be one of the following: The first SRS instance; The previous SRS instance before SRS instance X; Other network indications / protocol agreements / a specific SRS instance selected by the UE.

[0105] Here, the effective time of this signaling indication is from the most recent SRS instance before this signaling to the two SRS instances before the next signaling (e.g., SRS instance 3 and SRS instance 4). The relationship between SRS and TEG remains unchanged across multiple SRS instances within the effective timeframe.

[0106] Optionally, the UE indicates that the signaling of SRS instance X is no later than a time T after SRS instance X, where T can be agreed upon by the protocol or indicated by the network.

[0107] Optionally, before the event trigger indication, the UE shall report the association relationship between SRS and Tx TEG at least once, such as the association relationship during the initial stage of SRS transmission (e.g., the first SRS instance), or the association relationship of one or more SRS instances (as indicated by the network / agreed by the protocol / selected by the UE).

[0108] Method 2: The UE anticipates a change in the association between the SRS and Tx TEG of a certain SRS instance, for example, after a panel handover (anticipating a subsequent change in the SRS-Tx TEG relationship), triggering a UE indication of the change. In this mode, the signaling indicates the association between the SRS and TEG during the period from this signaling to the next signaling. For example... Figure 3 The first instruction signaling indicates the association between SRS and TEG in SRS instance 3 and SRS instance 4.

[0109] Optionally, before the event trigger indication, the UE shall report the association relationship between SRS and Tx TEG at least once, such as the association relationship during the initial stage of SRS transmission (e.g., the first SRS instance), or the association relationship of one or more SRS instances (as indicated by the network / agreed by the protocol / selected by the UE).

[0110] Optionally, the aperiodic indication of the first association includes: The terminal sends a third indication signaling at a first time t, the third indication signaling being used to indicate the association between the uplink positioning reference signal of the uplink positioning reference signal instance and the first TEG within a first time window before the first time t. The first time window includes the P most recent uplink positioning reference signal instances before the first time t, where P is a positive integer and is obtained by at least one of the following methods: protocol agreement, network indication, and terminal selection.

[0111] Optionally, the first time t is the time when the UE reports the information. The first time t is indicated by the network-side device through downlink control information (DCI) signaling and offset. The DCI signaling is used to trigger the transmission of aperiodic uplink positioning reference signals.

[0112] The following concrete example illustrates the first correlation of aperiodic indicators. Figure 4 This is a schematic diagram of a non-periodic indication method provided in an embodiment of this application.

[0113] If the time indicated by the UE is t, the UE reports the association between the SRS and TEG in the SRS instance within a certain time window before t.

[0114] Optionally, the time window consists of the N most recent SRS instances preceding time t. N is a positive integer, which can be agreed upon by the protocol / indicated by the network / selected by the UE. For example, when N is 1, the measurement results of the SRS instance preceding the indication signaling are reported, such as... Figure 4 SRS instance2 in the example.

[0115] Optionally, the time t can be indicated by the network, such as by DCI signaling + offset. Optionally, the DCI signaling can be a DCI that triggers aperiodic SRS.

[0116] Optionally, the periodic indication of the first association includes: A fourth indication signaling is sent according to a period T and / or a period offset. The fourth indication signaling is used to indicate the association between the uplink positioning reference signal (including at least one instance of the uplink positioning reference signal) and the first TEG between adjacent period intervals.

[0117] The period T and / or period offset are obtained by at least one of the following methods: protocol agreement, network indication, and terminal selection.

[0118] In this context, periodic indications are generally sent by the terminal according to the network configuration period and / or period offset; alternatively, the terminal may first receive the network pre-configured period and / or offset, and then receive the network activation indication (such as MAC CE activation signaling), activating the terminal to send the indication.

[0119] Optionally, the period T is related to the transmission period of the uplink positioning reference signal. For example, the period T is Q times the SRS period, where Q is a positive integer.

[0120] Optionally, the period T is related to the period during which the base station gNB reports uplink positioning measurement results. For example, the period T is Q times the period during which the gNB reports SRS measurement results, where Q is a positive integer.

[0121] Optionally, if the association between the uplink positioning reference signal transmitted in a certain period and the first TEG is consistent with the association between the uplink positioning reference signal transmitted in the previous period or the first period and the first TEG, the association is indicated by 1 bit of the fourth indication signaling, indicating that there is no change, or by default indication.

[0122] The following specific example further illustrates the first correlation of periodic indicators. Figure 5 This is a schematic diagram of a periodic indication method provided in an embodiment of this application.

[0123] Method 3: A given measurement report shows the relationship between the SRS and Tx TEG in each SRS instance between the current report and the previous report. For example... Figure 5 As shown, the relationship between SRS and Tx TEG of the three reported SRS instances is shown.

[0124] Method 4: (1) Indicates the relationship between SRS and TxTEG in the first SRS instance (e.g., SRS instance 1) in this report.

[0125] The term 'first SRS instance' is not specifically limited in this application embodiment. Here, 'first SRS instance' can also refer to 'Nth SRS instance', 'reference SRS instance', or a certain SRS instance selected by the UE according to other protocol agreements, network instructions, or UE.

[0126] The association between the SRS and Tx TEG in the first SRS instance can be indicated in one of the following ways: Each report must explicitly indicate the relationship between the SRS and Tx TEG in the first SRS instance; If the association relationship is different from that of the first SRS instance in the first report, an explicit indication will be given; otherwise, a default indication will be given (assuming that the association relationship is the same as that of the first SRS instance in the first report). If the association relationship of the first SRS instance is different from that in the previous report, an explicit indication will be given; otherwise, a default indication will be given (assuming that the association relationship is the same as that of the first SRS instance in the previous report). If the association relationship of the last SRS instance in the previous report is different from that in the previous report, an explicit indication will be given; otherwise, a default indication will be given (assuming that the association relationship is the same as that of the last SRS instance in the previous report).

[0127] (2) Indicate the relationship between SRS and Tx TEG in subsequent SRS instances (e.g., SRS instance 2, SRS instance 3) in this report. There are multiple seed methods, including one of the following: In subsequent SRS instances, if the association between SRS and Tx TEG differs from that of the first SRS instance, an explicit indication is given; otherwise, a default indication is given (assuming the association is the same as that of the first SRS instance). If the association between SRS and TxTEG in a certain SRS instance changes compared to the association between SRS and TxTEG in the previous SRS instance, an explicit indication is given; otherwise, a default indication is given (assuming that the association is the same as that in the previous SRS instance).

[0128] Optionally, the explicitly indicated signaling includes at least one of the following: Uplink Control Information (UCI) signaling, Media Access Layer Control Element (MAC CE) signaling, Radio Resource Control (RRC) signaling, and Long Term Evolution Positioning Protocol (LPP) signaling.

[0129] Optionally, the periodic indication of the first association includes: The first association is indicated in the measurement report of the UE Rx-Tx time difference received by the terminal.

[0130] Optionally, in the RTT positioning method or (or Multi-RTT positioning method), the UE periodically indicates the correlation between the uplink positioning reference signal and the first TEG, which can be included in the UE Rx-Tx time difference measurement reporting.

[0131] Optionally, the first association relationship includes identification information of the uplink positioning reference signal; The identification information of the uplink positioning reference signal includes at least one of the following: Uplink Positioning Reference Signal Resource Set Identifier (ID); Uplink positioning reference signal resource ID; Serving cell ID or carrier ID; Partial bandwidth BWP ID; Bandwidth indicator; The timestamp corresponding to the uplink positioning reference signal instance; Uplink positioning reference signal instance identifier; Frequency domain location information of the carrier and / or BWP where the uplink positioning reference signal is located.

[0132] The frequency domain location information includes: the starting position of the carrier and / or BWP, bandwidth, SCS, point A, etc.

[0133] Of course, the frequency domain location information can also be replaced with other information that can identify the carrier and / or BWP of the uplink positioning signal.

[0134] Optionally, the first information includes: a second association relationship, and the terminal indicating the first information to the network-side device includes: When the downlink positioning measurement results include downlink reference signal time difference (DL-RSTD) or receive-transmit time difference (Rx-Txtime difference) or other types of downlink measurement results, for the target positioning measurement results, the terminal indicates the association between the target positioning measurement results and N second TEGs; The target positioning measurement result is the positioning measurement result obtained by the terminal measuring the downlink positioning reference signal resources of the target.

[0135] It is understood that the target positioning measurement result refers to the downlink positioning measurement result under a certain downlink positioning reference signal resource (e.g., PRSresource).

[0136] The terminal indicates the target location measurement result and the associated N second TEGs, where N is a positive integer greater than or equal to 1, and N is obtained by at least one of the following methods: protocol agreement, network indication, and terminal selection.

[0137] In this embodiment of the application, the second association relationship is used to indicate the association relationship between the downlink positioning measurement result and the second TEG, wherein the second TEG may be at least one of Rx TEG, RxTx TEG, and {Rx TEG, Tx TEG}.

[0138] It is understood that in some embodiments, the second TEG is Rx TEG.

[0139] Optionally, the downlink positioning measurement result is related to N reception time error groups Rx TEG, indicating that at the same time, the UE used multiple Rx panels to receive the same downlink positioning reference signal resource; Alternatively, the same downlink positioning reference signal resource was repeatedly transmitted (i.e., repetition was configured), the UE performed receive beam sweeping (Rx beam sweeping), and the receive panel (Rxpanel) was switched during Rx beam sweeping.

[0140] Alternatively, the Rx panel may switch during the periodic reception of different downlink positioning reference signals.

[0141] Optionally, the terminal indicates the association between the target positioning measurement result and N second TEGs, including at least one of the following: The terminal indicates the paths associated with the N second TEGs; It should be noted that "the terminal indicates the paths associated with the N second TEGs" can also be expressed as "the terminal indicates the paths associated with the N second TEGs respectively." This means the terminal indicates the path associated with each second TEG associated with the target positioning measurement result. The path can be a first path and / or an additional path. That is, per path or per path-group indicates the association with the second TEG.

[0142] Optionally, when N=1, the UE reports the second TEG associated with the first path. In other words, when N=1, per PRSresource indicates the association with the second TEG.

[0143] Optionally, the terminal indicates the receive beam index (Rx beam index) associated with the N second TEGs; This can be understood as the terminal indicating the receiving beam index associated with each of the N second TEGs, indicating that the measurement result associated with a certain RxTEG is also related to that Rx beam index.

[0144] Optionally, the Rx beam index here does not have to be an absolute Rx beam index; it can be used only to distinguish whether the measurement results associated with RxTEG were obtained from different Rx beam measurements.

[0145] Optionally, N Rx TEGs may be associated with only one Rx beam or may be unrelated to Rx beams; this is the default indication.

[0146] In one implementation, for a given PRS resource (i.e., a target downlink positioning reference signal resource), the UE reports the measurement results for that PRS resource. These measurement results are divided into N groups based on N Rx TEGs. For a given group of measurement results, in addition to being associated with a specific TEG, it is also associated with one or more Rx beams, and the UE can report the corresponding Rx beam index. When multiple Rx beams are associated, the group of measurement results is obtained from the joint measurement of the multiple Rx beams; when one Rx beam is associated, the group of measurement results is obtained from the measurement of a single Rx beam (of course, the single Rx beam can also be the best Rx beam selected from multiple Rx beams).

[0147] Optionally, the terminal instructs the N second TEGs to be obtained by scanning with multiple receiving beams (Rx beam) or by simultaneously measuring the target downlink positioning reference signal resources; Optionally, the terminal indicates whether the associated N Rx TEGs are obtained by multiple Rx beam scans or by simultaneously measuring the PRS resource.

[0148] Optionally, the terminal indicates the timestamps of the downlink positioning measurement results associated with the N second TEGs; The terminal indicates the timestamps of the downlink positioning measurement results associated with the N second TEGs, signifying that the measurement results associated with different second TEGs were obtained from measurements taken using different timestamps. Here, a timestamp can represent measurements from different periods, or measurements from different times within the same period.

[0149] Optionally, the terminal indicates the time difference between the N second TEGs; The UE selects or indicates that a certain Rx TEG is used as a reference, and the other N-1 TEGs are subtracted from it. Optionally, the reference Rx TEG can be the Rx TEG corresponding to the earliest path among all paths.

[0150] Optionally, the terminal indicates the location information associated with the N second TEGs within the terminal; The location information includes at least one of the following: the distance or distance difference between the locations associated with the N Rx TEGs within the terminal, or the difference in panel locations corresponding to the N Rx TEGs.

[0151] Optionally, the terminal reports the downlink positioning measurement results associated with the N second TEGs; Different Rx TEGs correspond to different measurement results. The terminal indicates the correlation between the measurement results and the Rx TEGs and reports the corresponding measurement results.

[0152] Optionally, the downlink positioning measurement results corresponding to different timestamps indicate the association between the target positioning measurement results and N second TEGs.

[0153] Optionally, if the correlation between the target positioning measurement result and the N second TEGs is consistent with the previous (or first) one, the terminal can use 1 bit to indicate no change, or use the default indication.

[0154] Optionally, according to network instructions or protocol agreements, if the first preset condition is met, the terminal must report the correlation between the target positioning measurement results and multiple second TEGs.

[0155] The first preset condition includes, but is not limited to, at least one of the following: There are multiple downlink positioning measurement results associated with the second TEG whose quality exceeds the first preset threshold; For example, there may be multiple Rx TEG associated paths whose values ​​exceed a certain threshold (e.g., the power of the first path exceeds a certain threshold), or the RSRP of multiple Rx TEG associated measurements exceeds a certain threshold.

[0156] There are multiple downlink positioning measurement results associated with the second TEG that are line of sight (LOS) measurement results, or the LOS probability of the downlink positioning measurement results is higher than the second preset threshold; When the terminal performs a receiving beam scan, different receiving beams (Rx beams) are associated with different second TEGs, and the quality of downlink positioning measurement results corresponding to multiple receiving beams exceeds a third preset threshold.

[0157] It should be noted that, generally, when N>1, "multiple" here can be understood as "N"; or when N>1, "multiple" can be understood as "at least 2". Optionally, "multiple" can also be less than "N", or "multiple" can be greater than "N".

[0158] Optionally, in another implementation, when a first preset condition is met, the UE may report the correlation between the target positioning measurement result and multiple second TEGs, and / or report the time error difference between multiple second TEGs, and / or compensate for the time error difference between multiple second TEGs in the reported measurement result. The UE behavior may be determined by at least one method, such as network indication, protocol agreement, or UE selection.

[0159] Optionally, the UE may report the correlation between the target positioning measurement results and multiple second TEGs, and / or report the time error difference between multiple second TEGs, and / or compensate for the time error difference between multiple second TEGs in the reported measurement results, which may be determined by network indication, protocol agreement, or UE selection of at least one method.

[0160] Optionally, the terminal indicates the association between the target positioning measurement result and N second TEGs, including: When the terminal is configured with the quasi-co-location (QCL) relationship of the target downlink positioning reference signal resource, the terminal indicates the association between the target positioning measurement result and a second TEG.

[0161] For example, for a certain PRS resource, when the UE is configured with the QCL relationship of that PRS resource, N can only be 1.

[0162] Optionally, if the target downlink positioning reference signal resource is configured with a QCL indication, the terminal is not requested to indicate the association of N>1 second TEGs.

[0163] For example, when a PRS resource is configured with a QCL indication, the UE does not expect to be requested to associate N>1 RxTEGs.

[0164] Optionally, before performing the measurement, the terminal receives a fifth indication signaling sent by the network-side device. The fifth indication signaling is used to instruct the terminal to measure the target downlink positioning reference signal resource using Rx TEG sweeping.

[0165] Rx TEG sweeping can be understood as different Rx beams sweeping across multiple Rx TEGs. The network-side device sends a fifth indication signaling to ensure that the UE can calculate the difference between Rx TEGs.

[0166] Optionally, the terminal measures the target downlink positioning reference signal resources using Rx TEG sweeping, and must satisfy at least one of the following: The network-side device does not indicate the spatial QCL information of the target downlink positioning reference signal resource; The network-side device instructs the target downlink positioning reference signal resource to be repeated.

[0167] Optionally, when the network-side device indicates "Rx TEG sweeping", it cannot simultaneously indicate the QCL information (such as QCL-D, i.e., spatial QCL relationship) of the downlink positioning reference signal resource of the target.

[0168] Optionally, when the network-side device indicates "Rx TEG sweeping", it must simultaneously instruct the target downlink positioning reference signal resource to undergo repeated repetition. Furthermore, it is required that the number of repetitions exceeds a certain threshold.

[0169] Optionally, the indicating terminal measures the target downlink positioning reference signal resources using Rx TEG sweeping, including at least one of the following: The terminal is instructed to measure the target downlink positioning reference signal resource once in an Rx TEG sweeping manner across M cycles, where M is a positive integer and is obtained by at least one of the following methods: protocol agreement, network instruction, or terminal selection; here, "measure once in an Rx TEG sweeping manner across M cycles" means "measure once in an Rx TEG sweeping manner over M cycles".

[0170] Optionally, the terminal is instructed to measure the target downlink positioning reference signal resource once in an Rx TEG sweeping manner across different downlink positioning reference signal instances (i.e., downlink positioning reference signal periods).

[0171] For example, for the same PRS resource (set), a measurement may be generated over multiple periods, and beam sweeping may be performed over multiple periods.

[0172] Optionally, the terminal may be instructed to scan a portion of the Rx TEG, or to scan across a portion of the Rx TEG. In other words, the "Rx TEG sweeping" instruction can restrict sweeping to only a few Rx TEGs, or indicate which Rx TEGs the UE can sweep across.

[0173] Optionally, the terminal is instructed to report downlink positioning measurement results associated with different Rx TEGs.

[0174] The instruction “Rx TEG sweeping” also includes an instruction for the terminal to report downlink positioning measurement results associated with different Rx TEGs.

[0175] Optionally, when the terminal is unable to perform Rx TEG scanning or report measurement results as instructed by the network-side device, the terminal sends a reason for being unable to perform Rx TEG scanning as instructed by the network-side device or a reason for being unable to report downlink positioning measurement results.

[0176] For example, the terminal reports that the measurement result associated with a certain Rx TEG is below a certain threshold.

[0177] Optionally, the instruction terminal to measure the downlink positioning reference signal resource once every M cycles in an Rx TEG sweeping manner further includes at least one of the following: Indicates the total number of Rx TEGs in the Rx TEG sweeping; Indicates the number of Rx TEGs sweeping in each downlink positioning reference signal instance.

[0178] Among them, a certain downlink positioning reference signal instance is a certain period of the downlink positioning reference signal.

[0179] Optionally, M may be an Rx TEG sweeping factor, which includes the number of downlink positioning reference signal instances that the terminal can use or can use at most to complete one Rx TEG sweeping.

[0180] In some optional embodiments, the time error group indication method further includes: When the terminal has indicated the measurement results of N second TEGs and / or N second TEGs associated with the first downlink positioning reference signal resource and / or multiple receive beam indices, the terminal receives a sixth indication signaling sent by the network-side device. The sixth indication signaling is used to instruct the terminal to use the first downlink positioning reference signal resource as a reference resource for the second downlink positioning reference signal resource. The terminal uses N second TEGs or multiple receive beam indices associated with the first downlink positioning reference signal resource to receive the second downlink positioning reference signal resource.

[0181] Understandably, for a given PRS resource, the UE may have indicated the measurement results of N RxTEGs and / or N Rx TEGs associated with that PRS resource and / or multiple Rx beam indices. The network-side device may further indicate that the PRS resource is used as an "Rx TEG reference resource" for other PRS resources. When the UE receives this indication, it receives other PRS resources using the same receiving method, i.e., using the same N Rx TEGs or the same multiple Rx beams.

[0182] In some optional embodiments, the first information includes: a second association relationship, and the terminal indicating the first information to the network-side device includes: If the downlink positioning measurement result includes the UE Rx-Tx time difference (UE receive-transmit time difference), the terminal performs one of the following: This indicates the correlation between the downlink positioning measurement results and Rx TEG and Tx TEG; This indicates the correlation between the downlink positioning measurement results and RxTx TEG; This indicates the correlation between the downlink positioning measurement results and Rx TEG.

[0183] Optionally, the correlation between downlink positioning measurement results and Rx TEG refers to the Rx TEG associated when the UE receives the downlink positioning reference signal; Optionally, the specific correlation between the downlink positioning measurement results and the Rx TEG can be referenced to the correlation between the uplink positioning reference signal and the Tx TEG in the aforementioned embodiments, including relevant information of the downlink positioning reference signal identifier.

[0184] Optionally, the correlation between downlink positioning measurement results and Tx TEG refers to: when the UE determines the Rx-Tx timedifference value, the Tx TEG associated with the uplink subframe (start point) corresponding to the transmission time Tx time (TUE-TX measurement), or the Tx TEG associated with Tx time, or the Tx TEG associated with the reference point corresponding to Tx time.

[0185] In one implementation, within an RxTx TEG, the UE can indicate at least one set of {PRS resources, SRS resources}, wherein these at least one set are located within the same RxTx TEG or share the same RxTx TEG ID. Specifically, the PRS resources and SRS resources of different sets are not located within the same RxTx TEG. The PRS resources are used in conjunction with Rx-Tx time difference measurement to determine Rx time; the SRS resources are used in conjunction with Rx-Tx time difference measurement to determine Tx time.

[0186] Optionally, PRS resources can be indicated by at least one of the following: TRP ID (dl-PRS-ID in the protocol), PRS resource setID, and PRS resource ID.

[0187] Optionally, SRS resources can be indicated by at least one of the following: SRS resource set ID, SRS resource ID, serving cell ID or carrier ID, partial bandwidth ID (BWP ID), bandwidth indicator, time stamp or SRS instance identifier corresponding to the SRS instance, carrier where the SRS is located, and frequency domain location information of the BWP.

[0188] The frequency domain location information includes, but is not limited to: the starting location of the carrier and / or BWP, bandwidth, SCS, point A, etc. The frequency domain location information can also be replaced with other information that can identify the carrier and / or BWP where the SRS is located.

[0189] Optionally, the association between the downlink positioning measurement result indicated by the UE and which type of second TEG is selected can be determined by the network, the protocol, or the UE. The second TEG type includes at least one of the following: Rx TEG and Tx TEG, RxTxTEG, and Rx TEG.

[0190] Optionally, when the terminal indicates the correlation between the downlink positioning measurement results and the second TEG, it also includes: The terminal indicates whether the time error of the downlink positioning measurement results has been compensated or not.

[0191] Optionally, when the UE indicates that the timing error of the downlink positioning measurement result has been compensated, the UE indicates that there is no relationship between the measurement result and the TEG, or the UE only indicates the association between the measurement result and one TEG (which can be a protocol-defined TEG, a network-indicated TEG, or a default TEG selected by the UE).

[0192] Optionally, the UE may indicate a method for compensating for timing errors, such as internal compensation, or the UE may calculate and compensate based on different measurement results associated with multiple TEGs.

[0193] Optionally, the UE indicates the confidence of the compensation.

[0194] Optionally, before the terminal indicates the first information to the network-side device, it further includes: The terminal receives a seventh indication signaling message sent by a network-side device. The seventh indication signaling message is used to indicate the number of TEGs that can be associated when the terminal measures downlink positioning reference signals or sends uplink positioning reference signals.

[0195] Optionally, before indicating the association between the measurement results and / or SRS and TEG, the UE receives an indication from the network device indicating the number of TEGs that can be associated when the UE measures the PRS or sends the SRS.

[0196] For example, a UE supports four Tx TEGs, but the network-side device instructs the UE to associate (or activate) only two Tx TEGs when sending an SRS. For instance, if the UE supports Tx TEG0, Tx TEG1, Tx TEG2, and Tx TEG3, but the network-side device instructs the UE to associate only two Tx TEGs (such as Tx TEG0 and Tx TEG2), then the UE can only associate these two Tx TEGs when sending an SRS, instead of the supported four.

[0197] Optionally, before the terminal indicates the first information to the network-side device, it further includes: The terminal receives an eighth indication signaling sent by the network-side device. The eighth indication signaling is used to instruct the terminal to calculate and / or report the time difference between the second TEG and / or to compensate for the error of the second TEG in the downlink positioning measurement results.

[0198] Optionally, before indicating the measurement results and / or the association between SRS and TEG, the UE receives an indication from the network device indicating whether the UE can calculate and / or report the time difference between Rx TEG and / or compensate for the error of Rx TEG in the measurement results.

[0199] Optionally, the time error group indication method further includes: The terminal reports its capabilities to the network-side equipment. Here, network-side equipment can be a location server or a base station, including a serving gNB or a neighboring gNB.

[0200] Optionally, the terminal capability information includes one of the following: Calibration capability information; Rx TEG capability information; Tx TEG capability information; RxTx TEG capability information.

[0201] Optionally, the calibration capability information includes at least one of the following: The terminal does not support calibration of receive timing error Rx, transmit timing error Tx, and receive / transmit timing error RxTx. The terminal supports Rx timing error calibration; The terminal supports Tx timing error calibration; The terminal supports calibration of RxTx timing error.

[0202] The time error can also be replaced with the panel.

[0203] Optionally, the UE does not support calibration of any panel's Rx / Tx timing error; Optionally, the UE supports single-panel RxTx timing delay calibration: the UE is capable of calibrating the transmit / receive RTT error (i.e., Rx timing error + Tx timing error) of the same panel, or limiting the transmit / receive RTT error of the panel to a certain range.

[0204] If both Rx and Tx are in panel1, or both Rx and Tx are in panel2, the UE may be able to guarantee that Rx, Tx, and TEG are the same.

[0205] For example, in the combination of 2Rx panel and 2Tx panel, it may only be necessary to associate 3 RxTx TEGs instead of 4 groups {RxTEG, Tx TEG}.

[0206] The UE supports single-panel Rx calibration; UE supports Tx calibration for a single panel; The UE supports Rx calibration for a single panel, as well as Tx calibration for that panel.

[0207] Optionally, the UE supports calibration of the RxTx timing error for the same panel. For example, if a panel receives a signal and then transmits a signal using the same panel, calibration of the RxTx timing error for the same panel is supported.

[0208] Optionally, the UE supports cross-panel RxTx timing error calibration. For example, if one panel receives a signal and another panel transmits the signal, cross-panel RxTx timing error calibration is supported.

[0209] Optionally, the Rx TEG capability information includes at least one of the following: The number of Rx TEGs supported by the terminal; The number of Rx TEGs that the terminal can activate or has already activated; The maximum number of Rx TEGs associated with a downlink positioning reference signal resource or a positioning measurement result of a downlink positioning reference signal resource at the same time.

[0210] Optionally, TEG can be replaced with "panel". At the same time, the maximum number of Rx panels that a PRS resource can be associated with can be understood as: at the same time, the maximum number of Rx panels that a PRS resource can receive data from.

[0211] Optionally, the Tx TEG capability information includes at least one of the following: The number of Tx TEGs supported by the terminal; The number of Tx TEGs that the terminal can activate or has already activated; The number of Tx TEGs associated with the uplink positioning reference signal resources sent by the terminal.

[0212] Optionally, the number of Tx TEGs associated with the uplink positioning reference signal resources sent by the terminal can also be expressed as how many Tx TEGs the terminal can associate with to send uplink positioning reference signal resources at the same time.

[0213] This refers to how many Tx TEGs the terminal can simultaneously associate to send uplink positioning reference signal resources, such as SRSresource, or how many Tx panels the UE can simultaneously use to send S uplink positioning reference signal resources.

[0214] Optionally, the RxTx TEG capability information includes at least one of the following: The number of RxTx TEGs supported by the terminal; The number of RxTx TEGs that can be activated or have been activated on the terminal.

[0215] Optionally, when the terminal performs downlink positioning reference signal measurements, it includes at least one of the following actions: The UE does not expect a single measurement instance to be associated with multiple Rx TEGs. That is, when the UE determines a measurement result (such as RSTD or Rx-Tx difference), it can only perform joint processing on the measurement results associated with one Rx TEG.

[0216] The UE does not expect a single measurement instance's PRS resource to be associated with multiple Tx TEGs. When the UE does not expect PRS repetition, multiple Tx TEGs will be associated. A measurement instance contains multiple PRS resource set instances. Generally, a single measurement instance determines a measurement result (e.g., when determining a single RSTD result). When determining the result, the UE performs joint processing on the measurement results of multiple PRS resource set instances (which can be considered as multiple PRS periods), such as smoothing / averaging, to obtain a better result. However, if the measurement results of each PRS resource set instance are associated with different Rx TEGs when determining a single measurement result, errors will occur in the final joint calculation result. Therefore, we propose the following UE behavior: the multiple PRS resource set instances jointly processed by the UE when determining the measurement result should be associated with the same Rx TEG. Similarly, they should also be associated with the same Tx TEG.

[0217] Optionally, when the terminal sends an uplink positioning reference signal, the terminal is not allowed to associate multiple Tx TEGs during SRS repetition.

[0218] Figure 6 This is a second flowchart illustrating the time error group indication method provided in this application. The method is applied to a network-side device, such as a base station. Figure 6 As shown, the method includes the following steps: Step 600: The base station indicates third information to the location server, the third information being used to assist the location server in performing positioning calculations; The third information includes at least one of the following: The third correlation is used to indicate the correlation between the downlink positioning reference signal and the third time error group (TEG). The fourth association relationship is used to indicate the association relationship between the uplink positioning measurement results and the fourth TEG; Uplink positioning measurement results.

[0219] Optionally, the base station indicates to the location server the correlation between the downlink positioning reference signal (PRS, for example) and the third TEG, the uplink positioning measurement result and the fourth TEG, and / or the uplink positioning measurement result (under a certain TRP), to assist the location server in performing positioning calculations.

[0220] The association can be represented by the associated TEG identifier ID, or by grouping downlink positioning reference signals or uplink positioning measurement results of the same TEG into a group, or by other means.

[0221] The downlink positioning reference signal can be PRS or other signals that can be used for downlink positioning.

[0222] Among them, the uplink positioning measurement result is obtained by the base station measuring the uplink positioning reference signal sent by the terminal.

[0223] The uplink positioning reference signal can be SRS or other signals that can be used for uplink positioning.

[0224] The uplink positioning measurement results include, but are not limited to, at least one of the following: UL RTOA (Uplink, Relative Time of Arrival), gNB Rx-Tx time difference measurement results, and other types of uplink measurement results.

[0225] In the embodiments of this application, the third TEG includes at least one of the following: Tx TEG, RxTx TEG. That is, TRP TxTEG, TRP RxTx TEG.

[0226] Optionally, the third TEG is the time error group for the base station to transmit downlink positioning reference signals.

[0227] The fourth TEG includes at least one of the following: Rx TEG, RxTx TEG, {Rx TEG, Tx TEG}, that is, TRP RxTEG, TRP RxTx TEG, {TRP Rx TEG, TRP Tx TEG}.

[0228] Optionally, the fourth TEG is the time error group for the base station to receive the uplink positioning reference signal.

[0229] And / or, Step 601: The base station indicates second information to the terminal, wherein the second information is used to indicate that the downlink positioning reference signal resource set and / or the downlink positioning reference signal resources are associated with the antenna port of the transmit / receive point TRP.

[0230] The understanding of the second information can be referred to the aforementioned embodiments, and will not be repeated here.

[0231] In this embodiment of the application, by indicating third information to the location server and / or indicating second information to the terminal, the location server can be assisted in performing positioning calculations, thereby reducing or eliminating the impact of time error groups on positioning accuracy and improving positioning accuracy.

[0232] Optionally, the third information includes uplink positioning measurement results, and before the base station indicates the third information to the location server, it further includes: Obtain a first association relationship indicated by a terminal or location server, the first association relationship being used to indicate the association relationship between the uplink positioning reference signal and the first TEG.

[0233] Optionally, before reporting the uplink positioning measurement results, the gNB receives an indication from the location server or the UE, indicating the association between the uplink positioning reference signal and the first TEG.

[0234] Optionally, the first association relationship is the association relationship between SRS and UE Tx TEG.

[0235] One implementation method determines the relationship between SRS and Tx TEG based on the sequence and / or mapping method associated with SRS Tx TEG.

[0236] In one implementation, a first association relationship is directly received from an explicit indication from the UE.

[0237] In one implementation, the UE explicitly indicates the first association to the location server, which then sends it to the gNB.

[0238] Optional, also includes: The base station sends a fourth piece of information to the location server; The fourth piece of information includes at least one of the following: The time difference between the first TEG; The reliability or quality of the time difference between the first TEGs; Method for obtaining the first TEG; The TEG identifier associated with the first TEG.

[0239] Optionally, while indicating the third information to the location server, the base station also indicates the time difference between the first TEGs to the location server. The first TEG is the time error group for the terminal to send uplink positioning reference signals.

[0240] Furthermore, the base station indicates to the location server the reliability or quality of the time difference between the first TEGs.

[0241] Furthermore, the base station instructs the location server on a method for obtaining the first TEG, such as calculating and compensating based on different measurement results associated with multiple TEGs.

[0242] Optionally, the base station indicates the TEG identifier associated with the first TEG to the location server. For example, it indicates the reference Tx TEG identifier, as well as other Tx TEG identifiers.

[0243] Optionally, the base station gNB refers to the UE Tx TEG identifier and calculates the time difference of the UE Tx TEG by subtracting a certain UE Tx TEG.

[0244] Optionally, the reference Tx TEG can be agreed upon by the protocol, indicated by the location server, or selected by the gNB itself.

[0245] Optionally, the third information includes uplink positioning measurement results, and before the base station indicates the third information to the location server, it further includes: The base station receives a ninth indication signaling sent by the location server. The ninth indication signaling is used to instruct the base station to calculate and / or report the time difference between the first TEGs, and / or to compensate for the error of the first TEGs in the uplink positioning measurement results.

[0246] Optionally, before reporting the measurement results, the gNB receives an instruction from the location server indicating whether the gNB can calculate and / or report the time difference between Tx TEG and / or compensate for the error of Tx TEG in the measurement results.

[0247] Optionally, the base station indicates third information to the location server, including: When the first association is indicated by a sequence and / or mapping method, the uplink positioning measurement result is reported, wherein the uplink positioning measurement result includes the first association.

[0248] Optionally, if the first association is indicated by a sequence and / or mapping method, then the base station includes the first association in the uplink positioning measurement results when reporting the uplink positioning measurement results.

[0249] In one implementation, before performing SRS measurements, the gNB may receive information from a location server or UE indicating the number of Tx TEGs associated with the SRS (or the number of Tx TEGs that the UE can support or associate with). Based on the sequence and / or mapping method agreed upon by the protocol or indicated by the network, the gNB obtains the sequence and / or mapping locations of SRSs associated with different UE Tx TEGs, thereby measuring the SRS in each SRS instance. The gNB then reports the SRS measurement results to the location server, the measurement results containing the association between the SRS and the UE Tx TEGs.

[0250] Optionally, it may also include: the base station instructing the location server on the correlation between the uplink positioning measurement results and the fourth TEG, and / or the difference in time error of the fourth TEG, and / or the uplink positioning measurement results that have been compensated for the time error of the fourth TEG. The behavior of the base station can be determined by at least one of the following: protocol agreement, location server instruction, or decision by the base station itself.

[0251] Optionally, it also includes: when the base station reports the uplink positioning measurement results to the location server, it also reports the identification information of the uplink positioning reference signal associated with the uplink positioning measurement results; The identification information of the uplink positioning reference signal includes at least one of the following: Uplink Positioning Reference Signal Resource Set Identifier (ID); Uplink positioning reference signal resource ID; Serving cell ID or carrier ID; Partial bandwidth BWP ID; Bandwidth indicator; The timestamp corresponding to the uplink positioning reference signal instance; Uplink positioning reference signal instance identifier; Frequency domain location information of the carrier and / or BWP where the uplink positioning reference signal is located.

[0252] Optional, also includes: The base station receives terminal capability information sent by the terminal or location server; The terminal capability information includes one of the following: Calibration capability information; Rx TEG capability information; Tx TEG capability information; RxTx TEG capability information.

[0253] For an understanding of the calibration capability information, Rx TEG capability information, Tx TEG capability information and RxTx TEG capability information, please refer to the aforementioned embodiments, which will not be repeated here.

[0254] In some optional embodiments, the base station can also perform positioning calculations. The base station can directly obtain the first information indicated by the terminal, or the terminal can indicate the first information to the location server, and the location server can send the first information to the base station.

[0255] Optional, also includes: Obtain first information indicated by a terminal or location server; wherein the first information is used to assist the base station in performing positioning calculations; The first information includes at least one of the following: The first correlation relationship is used to indicate the correlation between the uplink positioning reference signal and the first time error group (TEG). The second correlation is used to indicate the correlation between the downlink positioning measurement results and the second TEG.

[0256] Optionally, before obtaining the first information indicated by the terminal, the method further includes: The base station sends a first request message to the terminal, the first request message being used to request the terminal to indicate the first information.

[0257] Optionally, the first information includes: a first association relationship, and the first information indicated by the acquisition terminal or location server includes at least one of the following: The first correlation is obtained by using the sequence of uplink positioning reference signals; The first correlation relationship is obtained by mapping the uplink positioning reference signal; Obtain the first association by triggering an event; Obtain the first association relationship non-periodicly; The first association is obtained periodically.

[0258] Optionally, before obtaining the first association relationship through the sequence of uplink positioning reference signals or the mapping method of uplink positioning reference signals, the method further includes: The base station sends a first indication signaling to the terminal, the first indication signaling being used to instruct the terminal to enable the function of indicating a first association relationship through a sequence and / or mapping method of uplink positioning reference signals.

[0259] Optionally, obtaining the first association through an event-triggered method includes: The receiving terminal sends a TEG indication signaling, which is used to indicate that the first association relationship has changed or that the first association relationship has changed.

[0260] Optionally, before the receiving terminal sends the TEG indication signaling, it further includes: The base station receives at least one second indication signaling message, which is used to indicate the first association relationship.

[0261] Optionally, the non-periodic acquisition of the first association relationship includes: The receiving terminal sends a third indication signaling, which indicates the association between the uplink positioning reference signal and the first TEG for the uplink positioning reference signal instance within the first time window before the first time t. The first time window includes the P most recent uplink positioning reference signal instances before the first time t, where P is a positive integer and is obtained by at least one of the following methods: protocol agreement, network indication, and terminal selection.

[0262] Optionally, the periodic acquisition of the first association relationship includes at least one of the following: The receiving terminal sends a fourth indication signaling according to period T and / or period offset, the fourth indication signaling being used to indicate the association between the uplink positioning reference signal and the TEG between adjacent period intervals. The first association is obtained from the measurement report of the UE Rx-Tx time difference received by the terminal.

[0263] Optionally, the first information includes: a second association relationship, and the first information indicated by the acquisition terminal or location server includes: When the downlink positioning measurement results received by the base station include downlink reference signal time difference (DL-RSTD) or receive-transmit time difference (Rx-Tx) or other types of downlink measurement results, the base station obtains the association relationship between the target positioning measurement results and N second TEGs for the target positioning measurement results. The target positioning measurement result is the positioning measurement result obtained by the terminal measuring the downlink positioning reference signal resources of the target. N is a positive integer greater than or equal to 1, and N is obtained by at least one of the following methods: protocol agreement, network indication, and terminal selection.

[0264] Optionally, the base station acquires the association between the target positioning measurement result and N second TEGs, including at least one of the following: The base station obtains the paths associated with the N second TEGs indicated by the terminal; The base station obtains the receive beam indices associated with the N second TEGs indicated by the terminal; The base station obtains the N second TEGs indicated by the terminal through multiple receiving beam scans or by simultaneously measuring the target downlink positioning reference signal resources. The base station obtains the timestamps of the downlink positioning measurement results associated with the N second TEGs indicated by the terminal; The base station obtains the time difference between the N second TEGs indicated by the terminal; The base station obtains the location information of the N second TEGs indicated by the terminal, which are associated within the terminal; The base station acquires the downlink positioning measurement results associated with the N second TEGs reported by the terminal; The base station obtains the correlation between the target positioning measurement results and N second TEGs indicated in the downlink positioning measurement results corresponding to different timestamps.

[0265] Optional, also includes: The base station sends a fifth indication signaling message to the terminal, which instructs the terminal to measure the target downlink positioning reference signal resources using Rx TEG sweeping.

[0266] Optionally, it may also include at least one of the following: The base station does not indicate the spatial QCL information of the target downlink positioning reference signal resource; The base station instructs the target downlink positioning reference signal resources to be repeated.

[0267] Optionally, the indicating terminal measures downlink positioning reference signal resources using Rx TEG sweeping, including at least one of the following: The terminal is instructed to measure the target downlink positioning reference signal resource once every M cycles using Rx TEG sweeping, where M is a positive integer and is obtained by at least one of the following methods: protocol agreement, network instruction, or terminal selection. Instruct the terminal to scan within a portion of the Rx TEG, or instruct the terminal to scan across a portion of the Rx TEG; Instruct the terminal to report downlink positioning measurement results associated with different Rx TEGs.

[0268] Optionally, the instruction terminal to measure the downlink positioning reference signal resource once every M cycles in an Rx TEG sweeping manner further includes at least one of the following: Indicates the total number of Rx TEGs in the Rx TEG sweeping; Indicates the number of Rx TEGs sweeping in each downlink positioning reference signal instance.

[0269] Optional, also includes: If the terminal has indicated the measurement results of N second TEGs and / or N second TEGs associated with the first downlink positioning reference signal resource and / or multiple receive beam indices, a sixth indication signaling is sent to the terminal. The sixth indication signaling is used to instruct the terminal to use the first downlink positioning reference signal resource as a reference resource for the second downlink positioning reference signal resource.

[0270] Optionally, the first information includes: a second association relationship, and the first information obtained by the base station from the terminal indication includes: If the downlink positioning measurement result received by the base station includes the UE Rx-Tx time difference, the base station performs one of the following: Obtain the correlation between the downlink positioning measurement results and Rx TEG and Tx TEG; Obtain the correlation between the downlink positioning measurement results and RxTx TEG; Obtain the correlation between the downlink positioning measurement results and Rx TEG.

[0271] Optional, also includes: The base station receiving terminal indicates whether the time error of the downlink positioning measurement results has been compensated or not.

[0272] Optional, also includes: A seventh indication signaling is sent to the terminal, which is used to indicate the number of TEGs that the terminal can associate when measuring downlink positioning reference signals or sending uplink positioning reference signals.

[0273] Optional, also includes: Send an eighth indication signaling message to the terminal, the eighth indication signaling message being used to instruct the terminal to calculate and / or report the time difference between the second TEG, and / or to compensate for the error of the second TEG in the downlink positioning measurement results.

[0274] In the embodiments of this application, the base station performs positioning calculations by obtaining the correlation between the uplink positioning reference signal indicated by the terminal and the first TEG and / or the correlation between the downlink positioning measurement result and the second TEG. This can reduce or eliminate the impact of time error groups on positioning accuracy and improve positioning accuracy.

[0275] Figure 7 This is the third flowchart illustrating the time error group indication method provided in this application embodiment. The method is applied to a network-side device, which is a location server, such as... Figure 7 As shown, the method includes the following steps: Step 700: The location server obtains first information indicated by the terminal, the first information being used to assist the location server or base station in performing positioning calculations; The first information includes at least one of the following: The first correlation relationship is used to indicate the correlation between the uplink positioning reference signal and the first time error group (TEG). The second correlation is used to indicate the correlation between the downlink positioning measurement results and the second TEG.

[0276] It should be noted that, in order to reduce or eliminate the impact of Rx / Tx timing error on positioning accuracy, in this embodiment of the application, the location server obtains the correlation between the uplink positioning reference signal indicated by the terminal and the first time error group (TEG), and / or the correlation between the downlink positioning measurement result and the second TEG, so as to assist itself in performing positioning calculation or assist the base station in performing positioning calculation.

[0277] The first TEG includes at least one of the following: Tx TEG, RxTx TEG. That is, UE Tx TEG, UE RxTx TEG.

[0278] The second TEG includes at least one of the following: Rx TEG, RxTx TEG, {Rx TEG, Tx TEG}, that is, UE RxTEG, UE RxTx TEG, {UE Rx TEG, UE Tx TEG}.

[0279] The association can be represented by the associated TEG identifier ID, or by grouping uplink positioning reference signals or downlink positioning measurement results of the same TEG into a group, or by other means.

[0280] The uplink positioning reference signal can be an SRS or other signals that can be used for uplink positioning.

[0281] Among them, the downlink positioning measurement result is obtained by the terminal measuring the received downlink positioning reference signal.

[0282] The downlink positioning reference signal can be PRS or other signals that can be used for downlink positioning.

[0283] Downlink positioning measurement results include at least one of the following: downlink reference signal time difference (DL RSTD), UE receive-transmit time difference (UE Rx-Tx time difference) measurement results, and other types of downlink measurement results.

[0284] Other types of downlink measurement results can be (DL-RSRP), and this application does not impose specific restrictions on them.

[0285] Step 701: The location server indicates second information to the terminal, wherein the second information is used to indicate that the downlink positioning reference signal resource set and / or the downlink positioning reference signal resources are associated with the antenna port of the transmit / receive point TRP.

[0286] For an understanding of the second information, please refer to the foregoing embodiments, which will not be repeated here.

[0287] In this embodiment of the application, the network-side device obtains the correlation between the uplink positioning reference signal indicated by the terminal and the first time error group (TEG) and / or the correlation between the downlink positioning measurement result and the second TEG, and / or indicates second information to the terminal to assist in positioning calculation, thereby reducing or eliminating the impact of the time error group on positioning accuracy and improving positioning accuracy.

[0288] Optionally, before the location server obtains the first information indicated by the terminal, it further includes: The location server sends a first request message to the terminal, the first request message being used to request the terminal to indicate the first information.

[0289] Optionally, for scenarios where positioning accuracy requirements are not high, network-side devices can require the terminal not to provide initial information.

[0290] The following section further explains how network-side devices obtain the initial information from terminal indications.

[0291] Optionally, the first information includes: a first association relationship, and the first information obtained by the location server from the terminal indication includes at least one of the following: The first correlation is obtained by using the sequence of uplink positioning reference signals; The first correlation relationship is obtained by mapping the uplink positioning reference signal; Obtain the first association by triggering an event; Obtain the first association relationship non-periodicly; The first association is obtained periodically.

[0292] Optionally, the sequence of the uplink positioning reference signal is generated based on the cyclic shift corresponding to the first TEG associated with the uplink positioning reference signal, wherein different first TEGs correspond to different cyclic shifts. Therefore, the location server can obtain the first association relationship by parsing the sequence of the uplink positioning reference signal.

[0293] Optionally, the association between the uplink positioning reference signal and the first TEG is represented by a mapping method of the uplink positioning reference signal. For example, for the same SRS resource, the Tx TEG changes between different periods, and the mapping on different periods of the same SRS resource will be different.

[0294] Optionally, a first association relationship is determined based on the time-frequency location corresponding to the uplink positioning reference signal, wherein different first TEGs are distinguished using Frequency Division Multiplexing (FDM). The method of distinguishing different TEGs using FDM is related to the number of Tx TEGs.

[0295] Optionally, before obtaining the first association relationship through the sequence of uplink positioning reference signals or the mapping method of uplink positioning reference signals, the method further includes: The location server sends a first indication signaling to the terminal, the first indication signaling being used to instruct the terminal to enable or activate the function of indicating a first association relationship through a sequence and / or mapping method of uplink positioning reference signals.

[0296] Optionally, the location server can instruct the terminal via the base station whether to enable the function of "representing the association between SRS and TEG using sequence and / or mapping", for example, by indicating via a switch.

[0297] In one implementation, when the serving gNB receives a request from the location server, such as a request to obtain the association relationship between the SRS and TxTEG (in real time), the serving gNB can instruct the UE to enable the switch. The UE then indicates the association relationship between the SRS and TxTEG according to the instruction via a sequence and / or mapping method. For example, in scenarios where the UE only supports / associates one TxTEG, or in scenarios where positioning accuracy requirements are not high, the switch is set to "off" or the default indication.

[0298] Optionally, obtaining the first association through an event-triggered method includes: The receiving terminal sends a TEG indication signaling, which is used to indicate that the first association relationship has changed or that the first association relationship has changed.

[0299] Optionally, the content of the TEG indication signaling includes one of the following: The association between the uplink positioning reference signal of the most recent uplink positioning reference signal instance before the TEG indication signaling and the first TEG has changed, and the TEG indication signaling continues to be effective until the most recent second uplink positioning reference signal instance before the next TEG indication signaling. The association between the uplink positioning reference signal and the first TEG has changed, indicating that the TEG indication signaling continues to be effective until the most recent uplink positioning reference signal instance before the next TEG indication signaling.

[0300] The change in correlation means that the correlation between the uplink positioning reference signal and the first TEG in this cycle has changed compared to the correlation between the uplink positioning reference signal and the first TEG in the previous cycle.

[0301] It is understandable that "the association between the uplink positioning reference signal of the most recent uplink positioning reference signal instance before the TEG indication signaling and the first TEG has changed" can also be expressed as "the association between the uplink positioning reference signal of the most recent uplink positioning reference signal instance before the TEG indication signaling and the first TEG".

[0302] The statement “The association between the uplink positioning reference signal of the most recent uplink positioning reference signal instance after the TEG indication signaling and the first TEG has changed” can also be expressed as “The association between the uplink positioning reference signal of the most recent uplink positioning reference signal instance after the TEG indication signaling and the first TEG”.

[0303] The TEG indication signaling not only indicates the association relationship or changes in the association relationship, but also indicates its duration of effectiveness. During the duration of effectiveness, the association relationship between the uplink positioning reference signal and the first TEG remains unchanged.

[0304] Understanding the relationship between the uplink reference signal of a certain uplink positioning reference signal instance and the first TEG: Taking SRS as an example, it can be the association relationship between all SRS resources or SRS resource sets in this SRS instance and the first TEG; it can also be the association relationship between a certain SRS resource or SRS resource set and the first TEG; or it can be the association relationship between several SRS resources or SRS resource sets and the first TEG.

[0305] Optionally, before the receiving terminal sends the TEG indication signaling, it further includes: The location server receives at least one second indication signaling message, which is used to indicate the first association.

[0306] Optionally, before the event trigger indication, the UE reports the association between the SRS and Tx TEG at least once, such as reporting the association during the initial phase of SRS transmission (e.g., the first SRS instance), or the association of one or more SRS instances (as indicated by the network / agreement by the protocol / selected by the UE). Accordingly, the location server receives at least one second indication signaling message, which is used to indicate the first association.

[0307] Optionally, the non-periodic acquisition of the first association relationship includes: The receiving terminal sends a third indication signaling, which indicates the association between the uplink positioning reference signal and the first TEG for the uplink positioning reference signal instance within the first time window before the first time t. The first time window includes the P most recent uplink positioning reference signal instances before the first time t, where P is a positive integer and is obtained by at least one of the following methods: protocol agreement, network indication, and terminal selection.

[0308] Optionally, the first time t is the time when the UE reports the information. The first time t is indicated by the network-side device through downlink control information (DCI) signaling and offset. The DCI signaling is used to trigger the transmission of aperiodic uplink positioning reference signals.

[0309] Optionally, the periodic acquisition of the first association relationship includes at least one of the following: The receiving terminal sends a fourth indication signaling according to period T and / or period offset, the fourth indication signaling being used to indicate the association between the uplink positioning reference signal and the TEG between adjacent period intervals. The first association is obtained from the measurement report of the UE Rx-Tx time difference received by the terminal.

[0310] The period T and / or period offset are obtained by at least one of the following methods: protocol agreement, network indication, and terminal selection.

[0311] In this context, periodic indications are generally sent by the terminal according to the network configuration period and / or period offset; alternatively, the terminal may first receive the network pre-configured period and / or offset, and then receive the network activation indication (such as MAC CE activation signaling), activating the terminal to send the indication.

[0312] Optionally, the period T is related to the transmission period of the uplink positioning reference signal. For example, the period T is Q times the SRS period, where Q is a positive integer.

[0313] Optionally, the period T is related to the period during which the base station gNB reports uplink positioning measurement results. For example, the period T is Q times the period during which the gNB reports SRS measurement results, where Q is a positive integer.

[0314] Optionally, in the RTT positioning method or (or Multi-RTT positioning method), the UE periodically indicates the association between the uplink positioning reference signal and the first TEG, which can be included in the measurement report of the UE Rx-Tx time difference. Accordingly, the location server obtains the first association in the measurement report of the UE Rx-Tx time difference received by the terminal.

[0315] Optionally, the first information includes: a second association relationship, and the first information obtained by the location server from the terminal indication includes: When the downlink positioning measurement results received by the location server include downlink reference signal time difference (DL-RSTD) or receive-transmit time difference (Rx-Tx) or other types of downlink measurement results, for the target positioning measurement results, the location server obtains the association between the target positioning measurement results indicated by the terminal and N second TEGs. The target positioning measurement result is the positioning measurement result obtained by the terminal measuring the downlink positioning reference signal resources of the target. N is a positive integer greater than or equal to 1, and N is obtained by at least one of the following methods: protocol agreement, network indication, and terminal selection.

[0316] It is understood that the target positioning measurement result refers to the downlink positioning measurement result under a certain downlink positioning reference signal resource (e.g., PRSresource).

[0317] The location server obtains the target location measurement result indicated by the terminal and the associated N second TEGs, where N is a positive integer greater than or equal to 1, and N is obtained by at least one of the following methods: protocol agreement, network indication, and terminal selection.

[0318] In this embodiment of the application, the second association relationship is used to indicate the association relationship between the downlink positioning measurement result and the second TEG, wherein the second TEG may be at least one of Rx TEG, RxTx TEG, and {Rx TEG, Tx TEG}.

[0319] It is understood that in some embodiments, the second TEG is Rx TEG.

[0320] Optionally, the downlink positioning measurement result is related to N reception time error groups Rx TEG, indicating that at the same time, the UE used multiple Rx panels to receive the same downlink positioning reference signal resource; Alternatively, the same downlink positioning reference signal resource was repeatedly transmitted, the UE performed receive beam sweeping (Rx beam sweeping), and the receive panel (Rx panel) was switched during Rx beam sweeping.

[0321] Optionally, the location server obtains the association between the target positioning measurement result and N second TEGs, including at least one of the following: The location server obtains the paths associated with the N second TEGs indicated by the terminal; The path can be the first path and / or the additional path. That is, the location server obtains the association relationship between the terminal and the second TEG as indicated by the per path or per path-group.

[0322] Optionally, when N=1, the UE reports the second TEG associated with the first path. In other words, when N=1, the location server obtains the association relationship between the terminal and the second TEG indicated by the PRS resource.

[0323] The location server obtains the receive beam indices associated with the N second TEGs indicated by the terminal; This can be understood as the location server obtaining the receive beam indexes associated with the N second TEGs indicated by the terminal, indicating that the measurement result associated with a certain Rx TEG is also related to that Rx beam index.

[0324] Optionally, the Rx beam index here does not have to be an absolute Rx beam index; it can be used only to distinguish whether the measurement results associated with RxTEG were obtained from different Rx beam measurements.

[0325] Optionally, N Rx TEGs may be associated with only one Rx beam or may be unrelated to Rx beams; this is the default indication.

[0326] The location server obtains the N second TEGs indicated by the terminal through multiple receive beam scans or by simultaneously measuring the target downlink positioning reference signal resources. The location server obtains the timestamps of the downlink positioning measurement results associated with the N second TEGs indicated by the terminal; Here, me stamp can represent measurements at different periods, or measurements at different times within the same period.

[0327] The location server obtains the time difference between the N second TEGs indicated by the terminal; The location server obtains the location information of the N second TEGs indicated by the terminal, which are associated with the terminal within the terminal; The location information includes at least one of the following: the distance or distance difference between the locations associated with the N Rx TEGs within the terminal, or the difference in panel locations corresponding to the N Rx TEGs.

[0328] The location server obtains the downlink positioning measurement results associated with the N second TEGs reported by the terminal; The location server obtains the association between the target positioning measurement results and N second TEGs indicated in the downlink positioning measurement results corresponding to different timestamps.

[0329] Optional, also includes: The location server sends a fifth instruction signaling to the terminal, which instructs the terminal to measure the target downlink positioning reference signal resources using RxTEG sweeping.

[0330] Optionally, it may also include at least one of the following: The location server does not indicate the spatial QCL information of the target downlink positioning reference signal resource; The location server instructs the target downlink positioning reference signal resource to be repeated.

[0331] Optionally, when the network-side device indicates "Rx TEG sweeping", it cannot simultaneously indicate the QCL information (such as QCL-D, i.e., spatial QCL relationship) of the downlink positioning reference signal resource of the target.

[0332] Optionally, when the network-side device indicates "Rx TEG sweeping", it must simultaneously instruct the target downlink positioning reference signal resource to undergo repeated repetition. Furthermore, it is required that the number of repetitions exceeds a certain threshold.

[0333] Optionally, the indicating terminal measures downlink positioning reference signal resources using Rx TEG sweeping, including at least one of the following: The terminal is instructed to measure the target downlink positioning reference signal resource once every M cycles using Rx TEG sweeping, where M is a positive integer and is obtained by at least one of the following methods: protocol agreement, network instruction, or terminal selection. Optionally, the terminal is instructed to measure the target downlink positioning reference signal resource once in an Rx TEG sweeping manner across different downlink positioning reference signal instances (i.e., downlink positioning reference signal periods).

[0334] For example, for the same PRS resource (set), a measurement may be generated over multiple periods, and beam sweeping may be performed over multiple periods.

[0335] Instruct the terminal to scan within a portion of the Rx TEG, or instruct the terminal to scan across a portion of the Rx TEG; In other words, the "Rx TEG sweeping" instruction can restrict sweeping to only a few Rx TEGs, or indicate which Rx TEGs the UE can sweep across.

[0336] Instruct the terminal to report downlink positioning measurement results associated with different Rx TEGs.

[0337] The instruction “Rx TEG sweeping” also includes an instruction for the terminal to report downlink positioning measurement results associated with different Rx TEGs.

[0338] Optionally, the location server receiving terminal may be unable to perform Rx TEG scanning as instructed by the network-side device, or the terminal may be unable to report downlink positioning measurement results.

[0339] Optionally, the instruction terminal to measure the downlink positioning reference signal resource once every M cycles in an Rx TEG sweeping manner further includes at least one of the following: Indicates the total number of Rx TEGs in the Rx TEG sweeping; Indicates the number of Rx TEGs sweeping in each downlink positioning reference signal instance.

[0340] Among them, a certain downlink positioning reference signal instance is a certain period of the downlink positioning reference signal.

[0341] Optionally, M may be an Rx TEG sweeping factor, which includes the number of downlink positioning reference signal instances that the terminal can use or can use at most to complete one Rx TEG sweeping.

[0342] Optional, also includes: If the terminal has indicated the measurement results of N second TEGs and / or N second TEGs associated with the first downlink positioning reference signal resource and / or multiple receive beam indices, a sixth indication signaling is sent to the terminal. The sixth indication signaling is used to instruct the terminal to use the first downlink positioning reference signal resource as a reference resource for the second downlink positioning reference signal resource.

[0343] Understandably, for a given PRS resource, the UE may have indicated the measurement results of N RxTEGs and / or N Rx TEGs associated with that PRS resource and / or multiple Rx beam indices. The location server may further indicate that the PRS resource is used as an "Rx TEG reference resource" for other PRS resources. When the UE receives this indication, it receives other PRS resources using the same receiving method, i.e., using the same N Rx TEGs or the same multiple Rx beams.

[0344] Optionally, the first information includes: a second association relationship, and the first information obtained by the location server from the terminal indication includes: If the downlink positioning measurement result received by the location server includes the UE Rx-Txtime difference, the base station performs one of the following: Obtain the correlation between the downlink positioning measurement results and Rx TEG and Tx TEG; Obtain the correlation between the downlink positioning measurement results and RxTx TEG; Obtain the correlation between the downlink positioning measurement results and Rx TEG.

[0345] Optionally, the correlation between downlink positioning measurement results and Rx TEG refers to the Rx TEG associated when the UE receives the downlink positioning reference signal; Optionally, the specific correlation between the downlink positioning measurement results and the Rx TEG can be referenced to the correlation between the uplink positioning reference signal and the Tx TEG in the aforementioned embodiments, including relevant information of the downlink positioning reference signal identifier.

[0346] Optionally, the correlation between downlink positioning measurement results and Tx TEG refers to: when the UE determines the Rx-Tx timedifference value, the Tx TEG associated with the uplink subframe (start point) corresponding to the transmission time Tx time (TUE-TX measurement), or the Tx TEG associated with Tx time, or the Tx TEG associated with the reference point corresponding to Tx time.

[0347] In one implementation, within an RxTx TEG, the UE can indicate at least one set of {PRS resources, SRS resources}, wherein these at least one set are located within the same RxTx TEG or share the same RxTx TEG ID. Specifically, the PRS resources and SRS resources of different sets are not located within the same RxTx TEG. The PRS resources are used in conjunction with Rx-Tx time difference measurement to determine Rx time; the SRS resources are used in conjunction with Rx-Tx time difference measurement to determine Tx time.

[0348] Optionally, PRS resources can be indicated by at least one of the following: TRP ID (dl-PRS-ID in the protocol), PRS resource setID, and PRS resource ID.

[0349] Optionally, SRS resources can be indicated by at least one of the following: SRS resource set ID, SRS resource ID, serving cell ID or carrier ID, partial bandwidth ID (BWP ID), bandwidth indicator, time stamp or SRS instance identifier corresponding to the SRS instance, carrier where the SRS is located, and frequency domain location information of the BWP.

[0350] The frequency domain location information includes, but is not limited to: the starting location of the carrier and / or BWP, bandwidth, SCS, point A, etc. The frequency domain location information can also be replaced with other information that can identify the carrier and / or BWP where the SRS is located.

[0351] Optionally, the association between the downlink positioning measurement result indicated by the UE and which type of second TEG is selected can be determined by the network, the protocol, or the UE. The second TEG type includes at least one of the following: Rx TEG and Tx TEG, RxTxTEG, and Rx TEG.

[0352] Optional, also includes: The location server receives information from the terminal indicating whether the time error of the downlink positioning measurement results has been compensated or not.

[0353] Optionally, when the UE indicates that compensation has been made for the timing error of the downlink positioning measurement results, the UE indicates that there is no relationship between the measurement results and the TEG, or the UE only indicates the association between the measurement results and one TEG (which can be a protocol-defined TEG, a network-indicated TEG, or a default TEG selected by the UE). Accordingly, the location server receives the relevant information indicated by the UE.

[0354] Optionally, the location server receives a method for compensating for timing errors indicated by the terminal, such as internal compensation, or the UE calculates and compensates based on different measurement results associated with multiple TEGs.

[0355] Optionally, the location server receives the confidence of the compensation indicated by the terminal.

[0356] Optional, also includes: A seventh indication signaling is sent to the terminal, which is used to indicate the number of TEGs that the terminal can associate when measuring downlink positioning reference signals or sending uplink positioning reference signals.

[0357] Optionally, before receiving the first association and / or second association indicated by the UE, a seventh indication signaling is sent to the terminal to indicate the number of TEGs that can be associated when the UE measures the PRS or sends the SRS.

[0358] For example, a UE supports four Tx TEGs, but the location server instructs the UE to associate (or activate) only two Tx TEGs when sending an SRS. For instance, if the UE supports Tx TEG0, Tx TEG1, Tx TEG2, and Tx TEG3, but the location server instructs the UE to associate only two Tx TEGs (such as Tx TEG0 and Tx TEG2), then the UE can only associate these two Tx TEGs when sending an SRS, instead of the supported four.

[0359] Optional, also includes: Send an eighth indication signaling message to the terminal, the eighth indication signaling message being used to instruct the terminal to calculate and / or report the time difference between the second TEG, and / or to compensate for the error of the second TEG in the downlink positioning measurement results.

[0360] Optionally, before receiving the first association and / or second association indicated by the UE, the location server sends an eighth indication signaling to the terminal, indicating whether the UE can calculate and / or report the time difference between the second TEGs and / or compensate for the error of the second TEGs in the measurement results.

[0361] Optional, also includes: Receive terminal capability information; The terminal capability information includes one of the following: Calibration capability information; Rx TEG capability information; Tx TEG capability information; RxTx TEG capability information.

[0362] Optionally, the location server receives terminal capability information reported by the terminal.

[0363] Optionally, the calibration capability information includes at least one of the following: The terminal does not support calibration of receive timing error Rx, transmit timing error Tx, and receive / transmit timing error RxTx. The terminal supports Rx timing error calibration; The terminal supports Tx timing error calibration; The terminal supports calibration of RxTx timing error.

[0364] The time error can also be replaced with the panel.

[0365] Optionally, the UE does not support calibration of any panel's Rx / Tx timing error; Optionally, the UE supports single-panel RxTx timing delay calibration: the UE has the ability to calibrate the transmit / receive RTT error of the same panel, or to limit the transmit / receive RTT error of the panel to a certain range.

[0366] If both Rx and Tx are in panel1, or both Rx and Tx are in panel2, the UE may be able to guarantee that Rx, Tx, and TEG are the same.

[0367] For example, in the combination of 2Rx panel and 2Tx panel, it may only be necessary to associate 3 RxTx TEGs instead of 4 groups {RxTEG, Tx TEG}.

[0368] The UE supports single-panel Rx calibration; UE supports Tx calibration for a single panel; The UE supports Rx calibration for a single panel, as well as Tx calibration for that panel.

[0369] Optionally, the UE supports calibration of the RxTx timing error for the same panel. For example, if a panel receives a signal and then transmits a signal using the same panel, calibration of the RxTx timing error for the same panel is supported.

[0370] Optionally, the UE supports cross-panel RxTx timing error calibration. For example, if one panel receives a signal and another panel transmits the signal, cross-panel RxTx timing error calibration is supported.

[0371] Optionally, the Rx TEG capability information includes at least one of the following: The number of Rx TEGs supported by the terminal; The number of Rx TEGs that the terminal can activate or has already activated; The maximum number of Rx TEGs associated with a downlink positioning reference signal resource or a positioning measurement result of a downlink positioning reference signal resource at the same time.

[0372] Optionally, TEG can be replaced with "panel". At the same time, the maximum number of Rx panels that a PRS resource can be associated with can be understood as: at the same time, the maximum number of Rx panels that a PRS resource can receive data from.

[0373] Optionally, the Tx TEG capability information includes at least one of the following: The number of Tx TEGs supported by the terminal; The number of Tx TEGs that the terminal can activate or has already activated; The number of Tx TEGs associated with the uplink positioning reference signal resources sent by the terminal.

[0374] Optionally, the number of Tx TEGs associated with the uplink positioning reference signal resources sent by the terminal can also be expressed as how many Tx TEGs the terminal can associate with to send uplink positioning reference signal resources at the same time.

[0375] This refers to how many Tx TEGs the terminal can simultaneously associate to send uplink positioning reference signal resources, such as SRSresource, or how many Tx panels the UE can simultaneously use to send S uplink positioning reference signal resources.

[0376] Optionally, the RxTx TEG capability information includes at least one of the following: The number of RxTx TEGs supported by the terminal; The number of RxTx TEGs that can be activated or have been activated on the terminal.

[0377] Optional, also includes: Obtain third information indicated by the base station, the third information being used to assist the location server in performing positioning calculations; The third information includes at least one of the following: The third correlation is used to indicate the correlation between the downlink positioning reference signal and the third time error group (TEG). The fourth association relationship is used to indicate the association relationship between the uplink positioning measurement results and the fourth TEG; Uplink positioning measurement results.

[0378] Optionally, the location server receives the correlation between the downlink positioning reference signal (PRS) indicated by the base station (under a certain TRP) and the third TEG, the uplink positioning measurement result and the fourth TEG, and / or the uplink positioning measurement result, and performs positioning calculation.

[0379] The association can be represented by the associated TEG identifier ID, or by grouping downlink positioning reference signals or uplink positioning measurement results of the same TEG into a group, or by other means.

[0380] The downlink positioning reference signal can be PRS or other signals that can be used for downlink positioning.

[0381] Among them, the uplink positioning measurement result is obtained by the base station measuring the uplink positioning reference signal sent by the terminal.

[0382] The uplink positioning reference signal can be SRS or other signals that can be used for uplink positioning.

[0383] The uplink positioning measurement results include, but are not limited to, at least one of the following: UL RTOA, gNB Rx-Tx timedifference measurement results, and other types of uplink measurement results.

[0384] In the embodiments of this application, the third TEG includes at least one of the following: Tx TEG, RxTx TEG. That is, TRP TxTEG, TRP RxTx TEG.

[0385] Optionally, the third TEG is the time error group for the base station to transmit downlink positioning reference signals.

[0386] The fourth TEG includes at least one of the following: Rx TEG, RxTx TEG, {Rx TEG, Tx TEG}, that is, TRP RxTEG, TRP RxTx TEG, {TRP Rx TEG, TRP Tx TEG}.

[0387] Optionally, the fourth TEG is the time error group for the base station to receive the uplink positioning reference signal.

[0388] Optional, also includes: Indicate the first association to the base station.

[0389] Optionally, the first association relationship is used to indicate the association relationship between the uplink positioning reference signal and the first TEG.

[0390] Optional, also includes: Obtain the fourth piece of information indicated by the base station; The fourth piece of information includes at least one of the following: The time difference between the first TEG; The reliability or quality of the time difference between the first TEGs; Method for obtaining the first TEG; The TEG identifier associated with the first TEG.

[0391] While instructing the location server on the third information, the base station also instructs the location server on the time difference between the first TEGs. The first TEG is the time error group for the terminal to transmit the uplink positioning reference signal.

[0392] Furthermore, the base station indicates to the location server the reliability or quality of the time difference between the first TEGs.

[0393] Furthermore, the base station instructs the location server on a method for obtaining the first TEG, such as calculating and compensating based on different measurement results associated with multiple TEGs.

[0394] Optionally, the base station indicates the TEG identifier associated with the first TEG to the location server. For example, it indicates the reference Tx TEG identifier, as well as other Tx TEG identifiers.

[0395] Optionally, the base station gNB refers to the UE Tx TEG identifier and calculates the time difference of the UE Tx TEG by subtracting a certain UE Tx TEG.

[0396] Optionally, the reference Tx TEG can be agreed upon by the protocol, indicated by the location server, or selected by the gNB itself.

[0397] Optional, also includes: A ninth indication signaling is sent to the base station, which is used to instruct the base station to calculate and / or report the time difference between the first TEGs, and / or to compensate for the error of the first TEGs in the uplink positioning measurement results.

[0398] Optionally, before the gNB reports the measurement results, the location server sends an indication to the base station, indicating whether the gNB can calculate and / or report the time difference between Tx TEG and / or compensate for the error of Tx TEG in the measurement results.

[0399] Optionally, the acquisition of the third information indicated by the base station includes: The uplink positioning measurement results reported by the base station are received, wherein the uplink positioning measurement results include a first correlation relationship.

[0400] Optionally, if the first association is indicated by a sequence and / or mapping method, then the base station includes the first association in the uplink positioning measurement results when reporting them. Accordingly, the location server receives the uplink positioning measurement results containing the first association.

[0401] Optionally, obtaining the third information indicated by the base station further includes: Obtain the identification information of the uplink positioning reference signal associated with the uplink positioning measurement result; The identification information of the uplink positioning reference signal includes at least one of the following: Uplink Positioning Reference Signal Resource Set Identifier (ID); Uplink positioning reference signal resource ID; Serving cell ID or carrier ID; Partial bandwidth BWP ID; Bandwidth indicator; The timestamp corresponding to the uplink positioning reference signal instance; Uplink positioning reference signal instance identifier; Frequency domain location information of the carrier and / or BWP where the uplink positioning reference signal is located.

[0402] Optionally, it may also include at least one of the following: Obtain terminal capability information; Send the terminal capability information to the base station; The terminal capability information includes one of the following: Calibration capability information; Rx TEG capability information; Tx TEG capability information; RxTx TEG capability information.

[0403] Optionally, terminal capability information can be sent to the base station when the base station performs positioning calculations.

[0404] For an understanding of calibration capability information, Rx TEG capability information, Tx TEG capability information, and RxTx TEG capability information, please refer to the aforementioned embodiments, which will not be repeated here.

[0405] The above embodiments mainly illustrate the correlation between the uplink positioning reference signal and the first TEG, the correlation between the downlink positioning measurement result and the second TEG, the correlation between the downlink positioning reference signal and the third TEG, and the correlation between the uplink positioning measurement result and the fourth TEG. However, they do not explain how the network-side device eliminates TEG errors through the above relationships. Therefore, this application also provides several specific implementation methods for eliminating TEG errors using the above relationships.

[0406] Implementation Method 1 In DL-TDOA positioning, the UE reports the association between the PRS measurement and the Rx TEG to the location server (e.g., LMF). Assume the UE has two Rx TEGs (Rx TEG0, Rx TEG1). The steps are as follows: (1) In DL-TDOA positioning, multiple TRPs send PRS, which the UE receives. To calculate the RSTD (Reference Signal Time Difference) value between different TRPs, a certain TRP is used as a reference, and the measurement results of the PRS of other TRPs are subtracted from those of the reference TRP. The measurement result of a certain TRP can be understood as the result of the UE measuring the PRS resource under that TRP. For the reference TRP, if the UE measures the PRS resource of the reference TRP and it is related to Rx TEG0, while the UE measures the PRS resource of a certain TRP A and it is related to Rx TEG1, then when calculating the RSTD of TRP A relative to the reference TRP, an error due to the difference between Rx TEG0 and Rx TEG1 will be introduced.

[0407] (2) The UE reports the measurement results of Rx TEG0 and Rx TEG1 under a certain PRS resource in TRP1. Then, the LMF calculates the difference between the measurement results of Rx TEG0 and Rx TEG1 to obtain the difference between Rx TEG0 and Rx TEG1.

[0408] (3) The difference between Rx TEG0 and Rx TEG1 obtained can compensate for the RSTD result in (1) and eliminate this error.

[0409] Implementation Method 2 During UL-TDOA positioning, the UE reports the association between the SRS and Tx TEG to the location server (e.g., LMF). Assume the UE has two Tx TEGs (Tx TEG0, Tx TEG1). The steps are as follows: (1) In UL-TDOA positioning, the UE sends SRS, and multiple TRPs receive it. The principle is similar to DL-TDOA. To calculate the difference in RTOA (Time of Arrival) between different TRPs, a certain TRP is used as a reference, and the SRS measurement results of other TRPs are subtracted from the reference TRP. The measurement result of a certain TRP can be understood as the result of measuring a certain SRS resource of the UE. For the reference TRP, if the SRS resource measured by the reference TRP is related to UE Tx TEG0, and the measurement result of the SRS resource measured by a certain TRP A is related to UE Tx TEG1, then when calculating the difference in RTOA between TRP A and the reference TRP, the error of the difference between UE Tx TEG0 and UE Tx TEG1 will be introduced.

[0410] (2) The UE can indicate the association between the SRS and the UE Tx TEG in a variety of ways. If a gNB can measure and obtain the RTOA value of two SRS resources and each SRS resource is associated with two Tx TEGs, then the gNB can calculate the difference between UE Tx TEG0 and UE Tx TEG1 and report it to the location server.

[0411] (3) Then, after obtaining the difference between UE Tx TEG0 and UE Tx TEG1, the location server can compensate for the error of the difference between UE Tx TEG0 and UE Tx TEG1 introduced in the RTOA difference in (1).

[0412] It should be noted that the execution entity of the time error group indication method provided in this application embodiment can be a time error group indication method device, or a control module in the time error group indication device for executing the time error group indication method. This application embodiment uses the execution of the time error group indication method by the time error group indication device as an example to illustrate the time error group indication device provided in this application embodiment.

[0413] Figure 8 This is one of the structural schematic diagrams of the time error group indication device provided in the embodiments of this application, such as... Figure 8 As shown, the device includes: The first indication unit 810 is used to indicate first information to the network-side device; wherein, the first information is used to assist the network-side device in performing positioning calculations; The first information includes at least one of the following: The first correlation relationship is used to indicate the correlation between the uplink positioning reference signal and the first time error group (TEG). The second correlation relationship is used to indicate the correlation between the downlink positioning measurement results and the second TEG; And / or, The first receiving unit 820 is used to receive second information sent by the network-side device, wherein the second information is used to assist the terminal and / or the network-side device in performing location-related calculations. The second information is used to indicate that the downlink positioning reference signal resource set and / or the downlink positioning reference signal resources are associated with the antenna port of the transmit / receive point (TRP).

[0414] Optional, also includes: The second receiving unit is configured to receive a first request message sent by a network-side device, wherein the first request message is used to request the terminal to indicate the first information.

[0415] Optionally, the first information includes: a first association relationship, and the first indication unit is configured to perform at least one of the following: The first correlation is indicated by the sequence of uplink positioning reference signals; The first association relationship is indicated by the mapping method of the uplink positioning reference signal; The first association is indicated by the event triggering method; Non-periodic indicators of primary correlation; Periodicity indicates the first correlation.

[0416] Optionally, the sequence of the uplink positioning reference signal is generated based on the cyclic shift corresponding to the first TEG associated with the uplink positioning reference signal, wherein different first TEGs correspond to different cyclic shifts.

[0417] Optionally, the mapping method of the uplink positioning reference signal is determined based on the time-frequency position corresponding to the first TEG associated with the uplink positioning reference signal, wherein different first TEGs are distinguished by frequency division multiplexing.

[0418] Optional, also includes: The third receiving unit is used to receive a first indication signaling sent by the network-side device. The first indication signaling is used to instruct the terminal to enable the function of indicating the first association relationship through the sequence and / or mapping method of the uplink positioning reference signal. The terminal enables the function of indicating the first association relationship through the sequence and / or mapping method of uplink positioning reference signals.

[0419] Optionally, indicating the first association through an event-triggered method includes: If the first TEG associated with the uplink positioning reference signal changes during the transmission of the uplink positioning reference signal, the terminal is triggered to send a TEG indication signaling. The TEG indication signaling is used to indicate that the first association relationship or the first association relationship has changed.

[0420] Optionally, the content of the TEG indication signaling includes one of the following: The association between the uplink positioning reference signal of the most recent uplink positioning reference signal instance before the TEG indication signaling and the first TEG has changed, and the TEG indication signaling continues to be effective until the most recent second uplink positioning reference signal instance before the next TEG indication signaling. The association between the uplink positioning reference signal and the first TEG has changed, indicating that the TEG indication signaling continues to be effective until the most recent uplink positioning reference signal instance before the next TEG indication signaling.

[0421] Optional, also includes: The first sending unit is configured to send at least one second indication signaling message, the second indication signaling message being used to indicate the first association relationship.

[0422] Optionally, the aperiodic indication of the first association includes: At a first time t, a third indication signaling is sent, which is used to indicate the association between the uplink positioning reference signal of the uplink positioning reference signal instance and the first TEG within a first time window before the first time t. The first time window includes the P most recent uplink positioning reference signal instances before the first time t, where P is a positive integer and is obtained by at least one of the following methods: protocol agreement, network indication, and terminal selection.

[0423] Optionally, the periodic indication of the first association includes: A fourth indication signaling is sent according to a period T and / or a period offset. The fourth indication signaling is used to indicate the association between the uplink positioning reference signal and the first TEG between adjacent period intervals.

[0424] Optionally, the period T and / or period offset are related to the transmission period of the uplink positioning reference signal or the transmission period of the uplink positioning reference signal measurement result.

[0425] Optionally, the periodic indication of the first association includes: The first association is indicated in the measurement report of the UE Rx-Tx time difference received by the terminal.

[0426] Optionally, the first association relationship includes identification information of the uplink positioning reference signal; The identification information of the uplink positioning reference signal includes at least one of the following: Uplink Positioning Reference Signal Resource Set Identifier (ID); Uplink positioning reference signal resource ID; Serving cell ID or carrier ID; Partial bandwidth BWP ID; Bandwidth indicator; The timestamp corresponding to the uplink positioning reference signal instance; Uplink positioning reference signal instance identifier; Frequency domain location information of the carrier and / or BWP where the uplink positioning reference signal is located.

[0427] Optionally, the first information includes: a second association relationship, and the first indicating unit is used for: In cases where the downlink positioning measurement results include downlink reference signal time difference (DL-RSTD) or receive-transmit time difference (Rx-Txtime difference) or other types of downlink measurement results, for the target positioning measurement results, the association between the target positioning measurement results and N second TEGs is indicated; The target positioning measurement result is the positioning measurement result obtained by the terminal measuring the downlink positioning reference signal resources of the target. N is a positive integer greater than or equal to 1, and N is obtained by at least one of the following methods: protocol agreement, network indication, and terminal selection.

[0428] Optionally, the association between the target localization measurement results and the N second TEGs includes at least one of the following: The terminal indicates the paths associated with the N second TEGs; The terminal indicates the receive beam index associated with the N second TEGs; The terminal instructs the N second TEGs to be obtained either by scanning multiple receive beams or by simultaneously measuring the target downlink positioning reference signal resources. The terminal indicates the timestamps of the downlink positioning measurement results associated with the N second TEGs; The terminal indicates the time difference between the N second TEGs; The terminal indicates the location information associated with the N second TEGs within the terminal; The terminal reports the downlink positioning measurement results associated with the N second TEGs; The downlink positioning measurement results corresponding to different timestamps indicate the correlation between the target positioning measurement results and N second TEGs.

[0429] Optionally, the association between the target localization measurement result and the N second TEGs includes: If the first preset condition is met, the correlation between the target positioning measurement results and multiple second TEGs is reported. The first preset condition includes at least one of the following: There are multiple downlink positioning measurement results associated with the second TEG whose quality exceeds the first preset threshold; There are multiple downlink positioning measurement results associated with the second TEG that are line-of-sight (LOS) measurement results, or the LOS probability of the downlink positioning measurement results is higher than the second preset threshold; When the terminal performs a receiving beam scan, different receiving beams are associated with different second TEGs, and the quality of the downlink positioning measurement results corresponding to multiple receiving beams exceeds the third preset threshold.

[0430] Optionally, the association between the target localization measurement result and the N second TEGs includes: When the terminal is configured with the quasi-co-location (QCL) relationship of the target downlink positioning reference signal resource, the association between the target positioning measurement result and a second TEG is indicated.

[0431] Optional, also includes: The fourth receiving unit is used to receive the fifth indication signaling sent by the network-side device. The fifth indication signaling is used to instruct the terminal to measure the target downlink positioning reference signal resources by means of Rx TEG sweeping.

[0432] Optionally, the terminal measures the target downlink positioning reference signal resources using Rx TEG sweeping, and must satisfy at least one of the following: The network-side device does not indicate the spatial QCL information of the target downlink positioning reference signal resource; The network-side device instructs the target downlink positioning reference signal resource to be repeated.

[0433] Optionally, the indicating terminal measures the target downlink positioning reference signal resources using Rx TEG sweeping, including at least one of the following: The terminal is instructed to measure the target downlink positioning reference signal resource once every M cycles using Rx TEG sweeping, where M is a positive integer and is obtained by at least one of the following methods: protocol agreement, network instruction, or terminal selection. Instruct the terminal to scan within a portion of the Rx TEG, or instruct the terminal to scan across a portion of the Rx TEG; Instruct the terminal to report downlink positioning measurement results associated with different Rx TEGs.

[0434] Optionally, the instruction terminal to measure the downlink positioning reference signal resource once every M cycles in an Rx TEG sweeping manner further includes at least one of the following: Indicates the total number of Rx TEGs in the Rx TEG sweeping; Indicates the number of Rx TEGs sweeping in each downlink positioning reference signal instance.

[0435] Optional, also includes: The second transmitting unit is used to transmit reasons for not being able to perform Rx TEG scanning as instructed by the network-side equipment or for the transmitting terminal being unable to report downlink positioning measurement results.

[0436] Optional, also includes: The fifth receiving unit is configured to receive a sixth indication signaling sent by the network-side device when the terminal has indicated the measurement results of N second TEGs associated with the first downlink positioning reference signal resource and / or multiple receive beam indices. The sixth indication signaling is used to instruct the terminal to use the first downlink positioning reference signal resource as a reference resource for the second downlink positioning reference signal resource. The sixth receiving unit is configured to receive the second downlink positioning reference signal resource using N second TEGs or multiple receiving beam indices associated with the first downlink positioning reference signal resource.

[0437] Optionally, the first information includes: a second association relationship, and the first indicating unit is used for: If the downlink positioning measurement result includes the UE Rx-Tx time difference (UE receive-transmit time difference), the terminal performs one of the following: This indicates the correlation between the downlink positioning measurement results and Rx TEG and Tx TEG; This indicates the correlation between the downlink positioning measurement results and RxTx TEG; This indicates the correlation between the downlink positioning measurement results and Rx TEG.

[0438] Optional, also includes: The first indicator unit is used to indicate whether the time error of the downlink positioning measurement result has been compensated or not.

[0439] Optional, also includes: The seventh receiving unit is used to receive the seventh indication signaling sent by the network-side device. The seventh indication signaling is used to indicate the number of TEGs that the terminal can associate when measuring downlink positioning reference signals or sending uplink positioning reference signals.

[0440] Optional, also includes: The eighth receiving unit is used to receive the eighth indication signaling sent by the network-side device. The eighth indication signaling is used to instruct the terminal to calculate and / or report the time difference between the second TEG, and / or to compensate for the error of the second TEG in the downlink positioning measurement results.

[0441] Optional, also includes: The third sending unit is used to report terminal capability information to the network-side equipment; The terminal capability information includes one of the following: Calibration capability information; Rx TEG capability information; Tx TEG capability information; RxTx TEG capability information.

[0442] Optionally, the calibration capability information includes at least one of the following: The terminal does not support calibration of receive timing error Rx, transmit timing error Tx, and receive / transmit timing error RxTx. The terminal supports Rx timing error calibration; The terminal supports Tx timing error calibration; The terminal supports calibration of RxTx timing error.

[0443] Optionally, the Rx TEG capability information includes at least one of the following: The number of Rx TEGs supported by the terminal; The number of Rx TEGs that the terminal can activate or has already activated; The maximum number of Rx TEGs associated with a downlink positioning reference signal resource or a positioning measurement result of a downlink positioning reference signal resource at the same time.

[0444] Optionally, the Tx TEG capability information includes at least one of the following: The number of Tx TEGs supported by the terminal; The number of Tx TEGs that the terminal can activate or has already activated; The number of Tx TEGs associated with the uplink positioning reference signal resources sent by the terminal.

[0445] Optionally, the RxTx TEG capability information includes at least one of the following: The number of RxTx TEGs supported by the terminal; The number of RxTx TEGs that can be activated or have been activated on the terminal.

[0446] Optionally, it also includes a first determining unit, used for: The relationships between multiple downlink positioning reference signal resource sets of the TRP and multiple antenna ports of the TRP are determined. It is determined that multiple downlink positioning reference signal resources in the downlink positioning reference signal resource set are associated with multiple antenna ports of the TRP; It is determined that multiple duplicate downlink positioning reference signal resources corresponding to the same downlink positioning reference signal resource identifier are associated with multiple antenna ports of the TRP.

[0447] Optionally, the multiple downlink positioning reference signal resource sets of the TRP are associated with multiple antenna ports of the TRP, including one of the following: Different downlink positioning reference signal resource sets are associated with different groups of TRP antenna ports; At least one downlink positioning reference signal resource set is associated with one group of TRP antenna ports; Each set of antenna ports of a TRP includes at least one TRP antenna port.

[0448] Optionally, the multiple downlink positioning reference signal resources in the downlink positioning reference signal resource set are associated with multiple antenna ports of the TRP, including one of the following: Downlink positioning reference signal resources are centralized, and different downlink positioning reference signal resources are associated with the antenna ports of different TRPs; Downlink positioning reference signal resources are concentrated, and at least one downlink positioning reference signal resource is associated with the antenna port of the same TRP; One downlink positioning reference signal resource is associated with one or more TRP antenna ports.

[0449] Optionally, multiple duplicate downlink positioning reference signal resources corresponding to the same downlink positioning reference signal resource identifier are associated with multiple antenna ports of the TRP, including one of the following: Different repeating downlink positioning reference signal resources are associated with different TRP antenna ports.

[0450] At least one repeating downlink positioning reference signal resource is associated with the antenna port of the same TRP.

[0451] Optionally, the downlink positioning reference signal resource set, and / or downlink positioning reference signal resources, and / or the repetition of downlink positioning reference signal resources should be associated with all antenna ports of the TRP.

[0452] Optionally, the second information may further include: a downlink positioning reference signal resource set and / or a functional indication of the downlink positioning reference signal resource.

[0453] Optional, also includes: The first processing unit is used to measure the channel at different ports and perform a codebook traversal process to obtain the best codebook and / or the best AOD angle that matches the channel.

[0454] Optionally, the second information may also include at least one of the following: The association between the downlink positioning reference signal resource set and the antenna port of the TRP; The relationship between downlink positioning reference signal resources and the antenna port of TRP; The association between repeated downlink positioning reference signal resources and the antenna port of the TRP.

[0455] In this embodiment of the application, by indicating first information to the network-side device and / or receiving second information, the network-side device is assisted in performing positioning calculations, thereby reducing or eliminating the impact of time error groups on positioning accuracy and improving positioning accuracy.

[0456] The time error group indicating device in this application embodiment can be a device, a device with an operating system, or an electronic device, or it can be a component, integrated circuit, or chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminals 11 listed above, while a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not impose specific limitations.

[0457] The time error group indication provided in this application embodiment can achieve... Figures 2 to 5 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0458] Figure 9 This is a second schematic diagram of the time error group indicator device provided in an embodiment of this application. Figure 9 As shown, the device includes: The third instruction unit 910 is used to instruct the location server with third information, which is used to assist the location server in performing positioning calculations. The third information includes at least one of the following: The third correlation is used to indicate the correlation between the downlink positioning reference signal and the third time error group (TEG). The fourth association relationship is used to indicate the association relationship between the uplink positioning measurement results and the fourth TEG; Uplink positioning measurement results; And / or, The fourth indication unit 920 is used to indicate second information to the terminal, wherein the second information is used to indicate that the downlink positioning reference signal resource set and / or the downlink positioning reference signal resources are associated with the antenna port of the transmit / receive point TRP.

[0459] Optional, also includes: The first acquisition unit is used to acquire a first association relationship indicated by the terminal or location server, wherein the first association relationship is used to indicate the association relationship between the uplink positioning reference signal and the first TEG.

[0460] Optional, also includes: The fifth instruction unit is used to instruct the fourth information to the location server; The fourth piece of information includes at least one of the following: The time difference between the first TEG; The reliability or quality of the time difference between the first TEGs; Method for obtaining the first TEG; The TEG identifier associated with the first TEG.

[0461] Optional, also includes: The ninth receiving unit is used to receive a ninth indication signaling sent by the location server. The ninth indication signaling is used to instruct the base station to calculate and / or report the time difference between the first TEG, and / or to compensate for the error of the first TEG in the uplink positioning measurement result, and / or to report the correlation between the uplink positioning measurement result and the first TEG.

[0462] Optionally, the third indicating unit is used for: When the first association is indicated by a sequence and / or mapping method, the uplink positioning measurement result is reported, wherein the uplink positioning measurement result includes the first association.

[0463] Optional, also includes: The fourth transmitting unit is used to report the identification information of the uplink positioning reference signal associated with the uplink positioning measurement result to the location server; The identification information of the uplink positioning reference signal includes at least one of the following: Uplink Positioning Reference Signal Resource Set Identifier (ID); Uplink positioning reference signal resource ID; Serving cell ID or carrier ID; Partial bandwidth BWP ID; Bandwidth indicator; The timestamp corresponding to the uplink positioning reference signal instance; Uplink positioning reference signal instance identifier; Frequency domain location information of the carrier and / or BWP where the uplink positioning reference signal is located.

[0464] Optional, also includes: The tenth receiving unit is used to receive terminal capability information sent by the terminal or location server; The terminal capability information includes one of the following: Calibration capability information; Rx TEG capability information; Tx TEG capability information; RxTx TEG capability information.

[0465] In this embodiment of the application, by indicating third information to the location server and / or indicating second information to the terminal, the location server can be assisted in performing positioning calculations, thereby reducing or eliminating the impact of time error groups on positioning accuracy and improving positioning accuracy.

[0466] Figure 10 This is the third schematic diagram of the time error group indicator device provided in the embodiments of this application. Figure 10 As shown, the device includes: The second acquisition unit 1010 is used to acquire first information indicated by the terminal, the first information being used to assist the location server or base station in performing positioning calculations. The first information includes at least one of the following: The first correlation relationship is used to indicate the correlation between the uplink positioning reference signal and the first time error group (TEG). The second correlation relationship is used to indicate the correlation between the downlink positioning measurement results and the second TEG; And / or, The sixth indication unit 1020 is used for the terminal to indicate second information, wherein the second information is used to indicate that the downlink positioning reference signal resource set and / or the downlink positioning reference signal resources are associated with the antenna port of the transmit / receive point TRP.

[0467] Optional, also includes: The fifth sending unit is used to send a first request message to the terminal, the first request message being used to request the terminal to indicate the first information.

[0468] Optionally, the first information includes: a first association relationship, and the second acquisition unit performs at least one of the following: The first correlation is obtained by using the sequence of uplink positioning reference signals; The first correlation relationship is obtained by mapping the uplink positioning reference signal; Obtain the first association by triggering an event; Obtain the first association relationship non-periodicly; The first association is obtained periodically.

[0469] Optional, also includes: The sixth sending unit is used to send a first indication signaling to the terminal, the first indication signaling being used to instruct the terminal to enable the function of indicating the first association relationship through the sequence and / or mapping method of the uplink positioning reference signal.

[0470] Optionally, obtaining the first association through an event-triggered method includes: The receiving terminal sends a TEG indication signaling, which is used to indicate that the first association relationship has changed or that the first association relationship has changed.

[0471] Optional, also includes: The eleventh receiving unit is configured to receive at least one second indication signaling, which is used to indicate the first association relationship.

[0472] Optionally, the non-periodic acquisition of the first association relationship includes: The receiving terminal sends a third indication signaling, which indicates the association between the uplink positioning reference signal and the first TEG for the uplink positioning reference signal instance within the first time window before the first time t. The first time window includes the P most recent uplink positioning reference signal instances before the first time t, where P is a positive integer and is obtained by at least one of the following methods: protocol agreement, network indication, and terminal selection.

[0473] Optionally, the periodic acquisition of the first association relationship includes at least one of the following: The receiving terminal sends a fourth indication signaling according to period T and / or period offset, the fourth indication signaling being used to indicate the association between the uplink positioning reference signal and the TEG between adjacent period intervals. The first association is obtained from the measurement report of the UE Rx-Tx time difference received by the terminal.

[0474] Optionally, the first information includes: a second association relationship, and the second acquisition unit is used for: If the downlink positioning measurement results received by the location server include downlink reference signal time difference (DL-RSTD) or receive-transmit time difference (Rx-Tx) or other types of downlink measurement results, for the target positioning measurement results, obtain the association relationship between the target positioning measurement results indicated by the terminal and N second TEGs; The target positioning measurement result is the positioning measurement result obtained by the terminal measuring the downlink positioning reference signal resources of the target. N is a positive integer greater than or equal to 1, and N is obtained by at least one of the following methods: protocol agreement, network indication, and terminal selection.

[0475] Optionally, obtaining the correlation between the target positioning measurement result and N second TEGs includes at least one of the following: Obtain the paths associated with the N second TEGs indicated by the terminal; Obtain the receive beam indices associated with the N second TEGs indicated by the terminal; The N second TEGs indicated by the acquisition terminal are obtained by scanning multiple receive beams or by simultaneously measuring the target downlink positioning reference signal resources. The timestamps of the downlink positioning measurement results associated with the N second TEGs indicated by the terminal are obtained; Obtain the time difference between the N second TEGs indicated by the terminal; Obtain the location information of the N second TEGs indicated by the terminal within the terminal; Obtain the downlink positioning measurement results associated with the N second TEGs reported by the terminal; Obtain the correlation between the target positioning measurement results indicated in the downlink positioning measurement results corresponding to different timestamps and N second TEGs.

[0476] Optional, also includes: The seventh transmitting unit is used to send a fifth indication signaling to the terminal, the fifth indication signaling being used to instruct the terminal to measure the target downlink positioning reference signal resources using Rx TEG sweeping.

[0477] Optionally, the seventh transmitting unit is also used for: Spatial QCL information of the target downlink positioning reference signal resource is not indicated; The downlink positioning reference signal resource of the target is instructed to be repeated.

[0478] Optionally, the indicating terminal measures downlink positioning reference signal resources using Rx TEG sweeping, including at least one of the following: The terminal is instructed to measure the target downlink positioning reference signal resource once every M cycles using Rx TEG sweeping, where M is a positive integer and is obtained by at least one of the following methods: protocol agreement, network instruction, or terminal selection. Instruct the terminal to scan within a portion of the Rx TEG, or instruct the terminal to scan across a portion of the Rx TEG; Instruct the terminal to report downlink positioning measurement results associated with different Rx TEGs.

[0479] Optionally, the instruction terminal to measure the downlink positioning reference signal resource once every M cycles in an Rx TEG sweeping manner further includes at least one of the following: Indicates the total number of Rx TEGs in the Rx TEG sweeping; Indicates the number of Rx TEGs sweeping in each downlink positioning reference signal instance.

[0480] Optional, also includes: The eighth transmitting unit is configured to transmit a sixth indication signaling to the terminal when the terminal has indicated the measurement results of N second TEGs and / or N second TEGs associated with the first downlink positioning reference signal resource and / or multiple receive beam indices. The sixth indication signaling is used to instruct the terminal to use the first downlink positioning reference signal resource as a reference resource for the second downlink positioning reference signal resource.

[0481] Optionally, the first information includes: a second association relationship, and the second acquisition unit is used for: If the downlink positioning measurement result received by the location server includes the UE Rx-Txtime difference, the base station performs one of the following: Obtain the correlation between the downlink positioning measurement results and Rx TEG and Tx TEG; Obtain the correlation between the downlink positioning measurement results and RxTx TEG; Obtain the correlation between the downlink positioning measurement results and Rx TEG.

[0482] Optional, also includes: The twelfth receiving unit is used to receive information from the terminal indicating whether the time error of the downlink positioning measurement result has been compensated or not.

[0483] Optional, also includes: The ninth transmitting unit is used to send a seventh indication signaling to the terminal, the seventh indication signaling being used to indicate the number of TEGs that the terminal can associate when measuring downlink positioning reference signals or sending uplink positioning reference signals.

[0484] Optional, also includes: The tenth transmitting unit is used to send an eighth indication signaling to the terminal, the eighth indication signaling being used to instruct the terminal to calculate and / or report the time difference between the second TEGs, and / or to compensate for the error of the second TEGs in the downlink positioning measurement results.

[0485] Optional, also includes: The thirteenth receiving unit is used to receive terminal capability information; The terminal capability information includes one of the following: Calibration capability information; Rx TEG capability information; Tx TEG capability information; RxTx TEG capability information.

[0486] Optional, also includes: The third acquisition unit is used to acquire third information indicated by the base station, the third information being used to assist the location server in performing positioning calculations; The third information includes at least one of the following: The third correlation is used to indicate the correlation between the downlink positioning reference signal and the third time error group (TEG). The fourth association relationship is used to indicate the association relationship between the uplink positioning measurement results and the fourth TEG; Uplink positioning measurement results.

[0487] Optional, also includes: The seventh indication unit is used to indicate the first association relationship to the base station.

[0488] Optional, also includes: The fourth acquisition unit is used to acquire the fourth information indicated by the base station; The fourth piece of information includes at least one of the following: The time difference between the first TEG; The reliability or quality of the time difference between the first TEGs; Method for obtaining the first TEG; The TEG identifier associated with the first TEG.

[0489] Optional, also includes: The eleventh transmitting unit is used to send a ninth indication signaling to the base station. The ninth indication signaling is used to instruct the base station to calculate and / or report the time difference between the first TEGs, and / or to compensate for the error of the first TEGs in the uplink positioning measurement results.

[0490] Optionally, the third acquisition unit is used for: The uplink positioning measurement results reported by the base station are received, wherein the uplink positioning measurement results include a first correlation relationship.

[0491] Optionally, the third acquisition unit is further configured to: Obtain the identification information of the uplink positioning reference signal associated with the uplink positioning measurement result; The identification information of the uplink positioning reference signal includes at least one of the following: Uplink Positioning Reference Signal Resource Set Identifier (ID); Uplink positioning reference signal resource ID; Serving cell ID or carrier ID; Partial bandwidth BWP ID; Bandwidth indicator; The timestamp corresponding to the uplink positioning reference signal instance; Uplink positioning reference signal instance identifier; Frequency domain location information of the carrier and / or BWP where the uplink positioning reference signal is located.

[0492] Optionally, it may also include at least one of the following: The fourth acquisition unit is used to acquire terminal capability information; The twelfth transmitting unit is used to transmit the terminal capability information to the base station; The terminal capability information includes one of the following: Calibration capability information; Rx TEG capability information; Tx TEG capability information; RxTx TEG capability information.

[0493] In this embodiment of the application, by obtaining the correlation between the uplink positioning reference signal indicated by the terminal and the first time error group (TEG) and / or the correlation between the downlink positioning measurement result and the second TEG, and / or indicating second information to the terminal, the positioning calculation is assisted, thereby reducing or eliminating the impact of the time error group on the positioning accuracy and improving the positioning accuracy.

[0494] Optional, such as Figure 11 As shown, this application embodiment also provides a communication device 1100, including a processor 1101, a memory 1102, and a program or instructions stored in the memory 1102 and executable on the processor 1101. For example, when the communication device 1100 is a terminal, the program or instructions executed by the processor 1101 implement the various processes of the above-described time error group indication method embodiment and achieve the same technical effect. When the communication device 1100 is a network-side device, the program or instructions executed by the processor 1101 implement the various processes of the above-described time error group indication method embodiment and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0495] This application embodiment also provides a terminal, including a processor and a communication interface. The processor is used to indicate first information to a network-side device; wherein the first information is used to assist the network-side device in performing positioning calculations, and / or, the communication interface is used to receive second information sent by the network-side device; wherein the first information includes at least one of the following: a first association relationship, which indicates the association relationship between an uplink positioning reference signal and a first time error group (TEG); a second association relationship, which indicates the association relationship between a downlink positioning measurement result and a second TEG; wherein the second information is used to assist the terminal and / or the network-side device in performing positioning-related calculations; the second information is used to indicate that the downlink positioning reference signal resource set and / or the downlink positioning reference signal resources are associated with the antenna port of the transmit / receive point (TRP). This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and can achieve the same technical effects. Specifically, Figure 12 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application. The terminal 1200 includes, but is not limited to, at least some of the following components: radio frequency unit 1201, network module 1202, audio output unit 1203, input unit 1204, sensor 1205, display unit 1206, user input unit 1207, interface unit 1208, memory 1209, and processor 1210.

[0496] Those skilled in the art will understand that the terminal 1200 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 1210 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 12 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0497] It should be understood that, in this embodiment, the input unit 1204 may include a graphics processing unit (GPU) 12041 and a microphone 12042. The GPU 12041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 1206 may include a display panel 12061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 1207 includes a touch panel 12071 and other input devices 12072. The touch panel 12071 is also called a touch screen. The touch panel 12071 may include a touch detection device and a touch controller. Other input devices 12072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, joysticks, etc., which will not be described in detail here.

[0498] In this embodiment, the radio frequency unit 1201 receives downlink data from the network-side device and processes it for the processor 1210; additionally, it sends uplink data to the network-side device. Typically, the radio frequency unit 1201 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0499] The memory 1209 can be used to store software programs or instructions and various data. The memory 1209 may primarily include a program or instruction storage area and a data storage area. The program or instruction storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 1209 may include high-speed random access memory and non-volatile memory, wherein the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. For example, at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.

[0500] Processor 1210 may include one or more processing units; optionally, processor 1210 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications or instructions, and the modem processor mainly handles wireless communication, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 1210.

[0501] The processor 1210 is used to indicate first information to the network-side device; wherein the first information is used to assist the network-side device in performing positioning calculations. And / or, The radio frequency unit 1201 is used to receive second information sent by the network-side device; wherein the second information is used to assist the terminal and / or the network-side device in performing location-related calculations. The second information is used to indicate that the downlink positioning reference signal resource set and / or the downlink positioning reference signal resources are associated with the antenna port of the transmit / receive point (TRP).

[0502] In this embodiment of the application, by indicating first information to the network-side device and / or receiving second information, the network-side device is assisted in performing positioning calculations, thereby reducing or eliminating the impact of time error groups on positioning accuracy and improving positioning accuracy.

[0503] Optionally, the radio frequency unit 1201 is further configured to receive a first request message sent by a network-side device, the first request message being used to request the terminal to indicate the first information.

[0504] Optionally, the first information includes: a first association relationship, and the first indication unit is configured to perform at least one of the following: The first correlation is indicated by the sequence of uplink positioning reference signals; The first association relationship is indicated by the mapping method of the uplink positioning reference signal; The first association is indicated by the event triggering method; Non-periodic indicators of primary correlation; Periodicity indicates the first correlation.

[0505] Optionally, the sequence of the uplink positioning reference signal is generated based on the cyclic shift corresponding to the first TEG associated with the uplink positioning reference signal, wherein different first TEGs correspond to different cyclic shifts.

[0506] Optionally, the mapping method of the uplink positioning reference signal is determined based on the time-frequency position corresponding to the first TEG associated with the uplink positioning reference signal, wherein different first TEGs are distinguished by frequency division multiplexing.

[0507] Optionally, the radio frequency unit 1201 is also used for: The terminal receives a first indication signaling sent by a network-side device. The first indication signaling is used to instruct the terminal to enable the function of indicating a first association relationship through a sequence and / or mapping method of uplink positioning reference signals. Processor 1210 is also configured to: enable the function of indicating a first association relationship through a sequence and / or mapping method of uplink positioning reference signals.

[0508] Optionally, indicating the first association through an event-triggered method includes: If the first TEG associated with the uplink positioning reference signal changes during the transmission of the uplink positioning reference signal, the terminal is triggered to send a TEG indication signaling. The TEG indication signaling is used to indicate that the first association relationship or the first association relationship has changed.

[0509] Optionally, the content of the TEG indication signaling includes one of the following: The association between the uplink positioning reference signal of the most recent uplink positioning reference signal instance before the TEG indication signaling and the first TEG has changed, and the TEG indication signaling continues to be effective until the most recent second uplink positioning reference signal instance before the next TEG indication signaling. The association between the uplink positioning reference signal and the first TEG has changed, indicating that the TEG indication signaling continues to be effective until the most recent uplink positioning reference signal instance before the next TEG indication signaling.

[0510] Optionally, the radio frequency unit 1201 is also used for: Send at least one second indication signaling message, which is used to indicate the first association.

[0511] Optionally, the aperiodic indication of the first association includes: At a first time t, a third indication signaling is sent, which is used to indicate the association between the uplink positioning reference signal of the uplink positioning reference signal instance and the first TEG within a first time window before the first time t. The first time window includes the P most recent uplink positioning reference signal instances before the first time t, where P is a positive integer and is obtained by at least one of the following methods: protocol agreement, network indication, and terminal selection.

[0512] Optionally, the periodic indication of the first association includes: A fourth indication signaling is sent according to a period T and / or a period offset. The fourth indication signaling is used to indicate the association between the uplink positioning reference signal and the first TEG between adjacent period intervals.

[0513] Optionally, the period T and / or period offset are related to the transmission period of the uplink positioning reference signal or the transmission period of the uplink positioning reference signal measurement result.

[0514] Optionally, the periodic indication of the first association includes: The first association is indicated in the measurement report of the UE Rx-Tx time difference received by the terminal.

[0515] Optionally, the first association relationship includes identification information of the uplink positioning reference signal; The identification information of the uplink positioning reference signal includes at least one of the following: Uplink Positioning Reference Signal Resource Set Identifier (ID); Uplink positioning reference signal resource ID; Serving cell ID or carrier ID; Partial bandwidth BWP ID; Bandwidth indicator; The timestamp corresponding to the uplink positioning reference signal instance; Uplink positioning reference signal instance identifier; Frequency domain location information of the carrier and / or BWP where the uplink positioning reference signal is located.

[0516] Optionally, the first information includes: a second association relationship, and the first indicating unit is used for: In cases where the downlink positioning measurement results include downlink reference signal time difference (DL-RSTD) or receive-transmit time difference (Rx-Txtime difference) or other types of downlink measurement results, for the target positioning measurement results, the association between the target positioning measurement results and N second TEGs is indicated; The target positioning measurement result is the positioning measurement result obtained by the terminal measuring the downlink positioning reference signal resources of the target. N is a positive integer greater than or equal to 1, and N is obtained by at least one of the following methods: protocol agreement, network indication, and terminal selection.

[0517] Optionally, the association between the target localization measurement results and the N second TEGs includes at least one of the following: Indicates the paths associated with the N second TEGs; Indicates the receive beam index associated with the N second TEGs; The N second TEGs are indicated to be obtained by scanning multiple receive beams or by simultaneously measuring the target downlink positioning reference signal resources. The timestamps indicating the downlink positioning measurement results associated with the N second TEGs; Indicates the time difference between the N second TEGs; Indicates the location information associated with the N second TEGs within the terminal; Report the downlink positioning measurement results associated with the N second TEGs; The downlink positioning measurement results corresponding to different timestamps indicate the correlation between the target positioning measurement results and N second TEGs.

[0518] Optionally, the association between the target localization measurement result and the N second TEGs includes: If the first preset condition is met, the correlation between the target positioning measurement results and multiple second TEGs is reported. The first preset condition includes at least one of the following: There are multiple downlink positioning measurement results associated with the second TEG whose quality exceeds the first preset threshold; There are multiple downlink positioning measurement results associated with the second TEG that are line-of-sight (LOS) measurement results, or the LOS probability of the downlink positioning measurement results is higher than the second preset threshold; When the terminal performs a receiving beam scan, different receiving beams are associated with different second TEGs, and the quality of the downlink positioning measurement results corresponding to multiple receiving beams exceeds the third preset threshold.

[0519] Optionally, the association between the target localization measurement result and the N second TEGs includes: When the terminal is configured with the quasi-co-location (QCL) relationship of the target downlink positioning reference signal resource, the association between the target positioning measurement result and a second TEG is indicated.

[0520] Optionally, the radio frequency unit 1201 is also used for: The terminal receives a fifth indication signaling sent by the network-side device. The fifth indication signaling is used to instruct the terminal to measure the target downlink positioning reference signal resources by means of RxTEG sweeping.

[0521] Optionally, the terminal measures the target downlink positioning reference signal resources using Rx TEG sweeping, and must satisfy at least one of the following: The network-side device does not indicate the spatial QCL information of the target downlink positioning reference signal resource; The network-side device instructs the target downlink positioning reference signal resource to be repeated.

[0522] Optionally, the indicating terminal measures the target downlink positioning reference signal resources using Rx TEG sweeping, including at least one of the following: The terminal is instructed to measure the target downlink positioning reference signal resource once every M cycles using Rx TEG sweeping, where M is a positive integer and is obtained by at least one of the following methods: protocol agreement, network instruction, or terminal selection. Instruct the terminal to scan within a portion of the Rx TEG, or instruct the terminal to scan across a portion of the Rx TEG; Instruct the terminal to report downlink positioning measurement results associated with different Rx TEGs.

[0523] Optionally, the instruction terminal to measure the downlink positioning reference signal resource once every M cycles in an Rx TEG sweeping manner further includes at least one of the following: Indicates the total number of Rx TEGs in the Rx TEG sweeping; Indicates the number of Rx TEGs sweeping in each downlink positioning reference signal instance.

[0524] Optionally, the radio frequency unit 1201 is also used for: The reason given is that the Rx TEG scan could not be performed as instructed by the network-side device, or that the sending terminal could not report the downlink positioning measurement results.

[0525] Optionally, the radio frequency unit 1201 is also used for: When the terminal has indicated the measurement results of N second TEGs and / or N second TEGs associated with the first downlink positioning reference signal resource and / or multiple receive beam indices, the terminal receives a sixth indication signaling sent by the network-side device. The sixth indication signaling is used to instruct the terminal to use the first downlink positioning reference signal resource as a reference resource for the second downlink positioning reference signal resource. The second downlink positioning reference signal resource is received using N second TEGs or multiple receive beam indices associated with the first downlink positioning reference signal resource.

[0526] Optionally, the first information includes: a second association relationship, and the first indicating unit is used for: If the downlink positioning measurement result includes the UE Rx-Tx time difference (UE receive-transmit time difference), the terminal performs one of the following: This indicates the correlation between the downlink positioning measurement results and Rx TEG and Tx TEG; This indicates the correlation between the downlink positioning measurement results and RxTx TEG; This indicates the correlation between the downlink positioning measurement results and Rx TEG.

[0527] Optionally, the processor 1210 is also used for: This indicates whether the time error of the downlink positioning measurement results has been compensated or not.

[0528] Optionally, the radio frequency unit 1201 is also used for: The terminal receives a seventh indication signaling message sent by a network-side device. The seventh indication signaling message is used to indicate the number of TEGs that can be associated when the terminal measures downlink positioning reference signals or sends uplink positioning reference signals.

[0529] Optionally, the radio frequency unit 1201 is also used for: The terminal receives an eighth indication signaling sent by the network-side device. The eighth indication signaling is used to instruct the terminal to calculate and / or report the time difference between the second TEG and / or to compensate for the error of the second TEG in the downlink positioning measurement results.

[0530] Optionally, the radio frequency unit 1201 is also used for: Report terminal capability information to network-side devices; The terminal capability information includes one of the following: Calibration capability information; Rx TEG capability information; Tx TEG capability information; RxTx TEG capability information.

[0531] Optionally, the calibration capability information includes at least one of the following: The terminal does not support calibration of receive timing error Rx, transmit timing error Tx, and receive / transmit timing error RxTx. The terminal supports Rx timing error calibration; The terminal supports Tx timing error calibration; The terminal supports calibration of RxTx timing error.

[0532] Optionally, the Rx TEG capability information includes at least one of the following: The number of Rx TEGs supported by the terminal; The number of Rx TEGs that the terminal can activate or has already activated; The maximum number of Rx TEGs associated with a downlink positioning reference signal resource or a positioning measurement result of a downlink positioning reference signal resource at the same time.

[0533] Optionally, the Tx TEG capability information includes at least one of the following: The number of Tx TEGs supported by the terminal; The number of Tx TEGs that the terminal can activate or has already activated; The number of Tx TEGs associated with the uplink positioning reference signal resources sent by the terminal.

[0534] Optionally, the RxTx TEG capability information includes at least one of the following: The number of RxTx TEGs supported by the terminal; The number of RxTx TEGs that can be activated or have been activated on the terminal.

[0535] Optionally, the processor 1210 is also used for: The relationships between multiple downlink positioning reference signal resource sets of the TRP and multiple antenna ports of the TRP are determined. It is determined that multiple downlink positioning reference signal resources in the downlink positioning reference signal resource set are associated with multiple antenna ports of the TRP; It is determined that multiple duplicate downlink positioning reference signal resources corresponding to the same downlink positioning reference signal resource identifier are associated with multiple antenna ports of the TRP.

[0536] Optionally, the multiple downlink positioning reference signal resource sets of the TRP are associated with multiple antenna ports of the TRP, including one of the following: Different downlink positioning reference signal resource sets are associated with different groups of TRP antenna ports; At least one downlink positioning reference signal resource set is associated with one group of TRP antenna ports; Each set of antenna ports of a TRP includes at least one TRP antenna port.

[0537] Optionally, the multiple downlink positioning reference signal resources in the downlink positioning reference signal resource set are associated with multiple antenna ports of the TRP, including one of the following: Downlink positioning reference signal resources are centralized, and different downlink positioning reference signal resources are associated with the antenna ports of different TRPs; Downlink positioning reference signal resources are concentrated, and at least one downlink positioning reference signal resource is associated with the antenna port of the same TRP; One downlink positioning reference signal resource is associated with one or more TRP antenna ports.

[0538] Optionally, multiple duplicate downlink positioning reference signal resources corresponding to the same downlink positioning reference signal resource identifier are associated with multiple antenna ports of the TRP, including one of the following: Different repeating downlink positioning reference signal resources are associated with different TRP antenna ports.

[0539] At least one repeating downlink positioning reference signal resource is associated with the antenna port of the same TRP.

[0540] Optionally, the downlink positioning reference signal resource set, and / or downlink positioning reference signal resources, and / or the repetition of downlink positioning reference signal resources should be associated with all antenna ports of the TRP.

[0541] Optionally, the second information may further include: a downlink positioning reference signal resource set and / or a functional indication of the downlink positioning reference signal resource.

[0542] Optionally, the processor 1210 is also used for: Measure the channel at different ports and perform a codebook traversal process to obtain the optimal codebook and / or optimal AOD angle that matches the channel.

[0543] Optionally, the second information may also include at least one of the following: The association between the downlink positioning reference signal resource set and the antenna port of the TRP; The relationship between downlink positioning reference signal resources and the antenna port of TRP; The association between repeated downlink positioning reference signal resources and the antenna port of the TRP.

[0544] This application embodiment also provides a network-side device, including a processor and a communication interface. The processor is configured to indicate third information to a location server, the third information being used to assist the location server in performing positioning calculations. The third information includes at least one of the following: a third association relationship, indicating the association between downlink positioning reference signals and a third time error group (TEG); a fourth association relationship, indicating the association between uplink positioning measurement results and a fourth TEG; and / or, the processor is configured to indicate second information to a terminal, wherein the second information indicates an association between a downlink positioning reference signal resource set and / or a downlink positioning reference signal resource and an antenna port of a transmit-receive point (TRP). This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above method embodiments can be applied to this network-side device embodiment and achieve the same technical effects.

[0545] Alternatively, the processor is configured to acquire first information indicated by the terminal, the first information being used to assist the location server or base station in performing positioning calculations; wherein the first information includes at least one of the following: a first association relationship, the first association relationship being used to indicate the association relationship between the uplink positioning reference signal and the first time error group (TEG); a second association relationship, the second association relationship being used to indicate the association relationship between the downlink positioning measurement result and the second TEG; and / or, the location server indicates second information to the terminal, wherein the second information is used to indicate that the downlink positioning reference signal resource set and / or the downlink positioning reference signal resource is associated with the antenna port of the transmit / receive point (TRP).

[0546] Specifically, embodiments of this application also provide a network-side device. For example... Figure 13 As shown, the network device 1300 includes an antenna 1301, a radio frequency (RF) device 1302, and a baseband device 1303. The antenna 1301 is connected to the RF device 1302. In the uplink direction, the RF device 1302 receives information through the antenna 1301 and transmits the received information to the baseband device 1303 for processing. In the downlink direction, the baseband device 1303 processes the information to be transmitted and sends it to the RF device 1302. The RF device 1302 processes the received information and transmits it through the antenna 1301.

[0547] The aforementioned frequency band processing device can be located in the baseband device 1303. The method executed by the network-side device in the above embodiments can be implemented in the baseband device 1303, which includes a processor 1304 and a memory 1305.

[0548] The baseband device 1303 may, for example, include at least one baseband board on which multiple chips are disposed, such as... Figure 13 As shown, one of the chips, for example, is a processor 1304, which is connected to a memory 1305 to call the program in the memory 1305 and execute the network device operation shown in the above method embodiment.

[0549] The baseband device 1303 may also include a network interface 1306 for exchanging information with the radio frequency device 1302, such as a common public radio interface (CPRI).

[0550] Specifically, the network-side device in this embodiment of the invention further includes: instructions or programs stored in memory 1305 and executable on processor 1304, wherein processor 1304 calls the instructions or programs in memory 1305 to execute... Figure 9 or Figure 10 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0551] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described time error group indication method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0552] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0553] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described time error group indication method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0554] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0555] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0556] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0557] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A method for indicating time error groups, characterized in that, include: The terminal sends the first information to the network-side device; The first information includes: a first correlation relationship, which is used to indicate the correlation between the uplink positioning reference signal and the first time error group (TEG).

2. The time error group indication method according to claim 1, characterized in that, Before the terminal indicates the first information to the network-side device, it also includes: The terminal receives a first request message sent by the network-side device, the first request message being used to request the terminal to indicate the first information.

3. The time error group indication method according to claim 1, characterized in that, The terminal instructs the network-side device with the following first information: Periodicity indicates the first correlation.

4. The time error group indication method according to claim 3, characterized in that, The periodic indication of the first association includes: Indication signaling is transmitted according to the period T and / or period offset configured by the network-side equipment. This indication signaling is used to indicate the association between the uplink positioning reference signal and the first TEG between adjacent period intervals; or... The first association is indicated in the measurement report of the UE Rx-Tx time difference received by the terminal.

5. The time error group indication method according to any one of claims 1-4, characterized in that, The first association relationship includes the identification information of the uplink positioning reference signal; The identification information of the uplink positioning reference signal includes at least one of the following: Uplink positioning reference signal resource ID; Serving cell ID or carrier ID; The timestamp corresponding to the uplink positioning reference signal instance; Frequency domain position information of the carrier in which the uplink positioning reference signal is located.

6. The time error group indication method according to any one of claims 1 to 4, characterized in that, Also includes: The terminal reports its capabilities to the network-side equipment. The terminal capability information includes: Tx TEG capability information; wherein the Tx TEG capability information includes at least one of the following: The number of Tx TEGs supported by the terminal; The number of Tx TEGs that the terminal can activate or has already activated; The number of Tx TEGs associated with the uplink positioning reference signal resources sent by the terminal.

7. The time error group indication method according to claim 6, characterized in that, The terminal capability information also includes at least one of the following: calibration capability information, Rx TEG capability information, and RxTx TEG capability information; wherein... The calibration capability information includes at least one of the following: The terminal does not support calibration of receive timing error Rx, transmit timing error Tx, and receive / transmit timing error RxTx. The terminal supports Rx timing error calibration; The terminal supports Tx timing error calibration; The terminal supports calibration of RxTx timing error; The Rx TEG capability information includes at least one of the following: The number of Rx TEGs supported by the terminal; The number of Rx TEGs that the terminal can activate or has already activated; The maximum number of Rx TEGs associated with a downlink positioning reference signal resource or a positioning measurement result of a downlink positioning reference signal resource at the same time; The RxTx TEG capability information includes at least one of the following: The number of RxTx TEGs supported by the terminal; The number of RxTx TEGs that can be activated or have been activated on the terminal.

8. A time error group indication method, applied to a network-side device, wherein the network-side device is a base station, characterized in that, include: The base station indicates third information to the location server, and the third information is used to assist the location server in performing positioning calculations. The third information includes a fourth association relationship, which is used to indicate the association relationship between the uplink positioning measurement results and the fourth TEG.

9. The time error group indication method according to claim 8, characterized in that, Before the base station indicates the third information to the location server, it also includes: Obtain a first association relationship indicated by a terminal or location server, the first association relationship being used to indicate the association relationship between the uplink positioning reference signal and the first TEG.

10. The time error group indication method according to claim 8, characterized in that, Also includes: The base station sends a fourth piece of information to the location server; The fourth piece of information includes at least one of the following: The time difference between the first TEG; The reliability or quality of the time difference between the first TEGs; Method for obtaining the first TEG; The TEG identifier associated with the first TEG.

11. The time error group indication method according to claim 8, characterized in that, Also includes: The base station reports to the location server the identification information of the uplink positioning reference signal associated with the uplink positioning measurement results; The identification information of the uplink positioning reference signal includes at least one of the following: Uplink positioning reference signal resource ID; Serving cell ID or carrier ID; The timestamp corresponding to the uplink positioning reference signal instance; Frequency domain position information of the carrier in which the uplink positioning reference signal is located.

12. The time error group indication method according to any one of claims 8-11, characterized in that, Also includes: The base station receives terminal capability information sent by the terminal or location server; The terminal capability information includes at least one of the following: Calibration capability information; Rx TEG capability information; Tx TEG capability information; RxTx TEG capability information.

13. A time error group indication method, applied to a network-side device, wherein the network-side device is a location server, characterized in that, include: The location server obtains first information indicated by the terminal, and the first information is used to assist the location server in performing positioning calculations. The first information includes: a first correlation relationship, which is used to indicate the correlation between the uplink positioning reference signal and the first time error group (TEG).

14. The time error group indication method according to claim 13, characterized in that, Before the location server obtains the first information indicated by the terminal, it also includes: The location server sends a first request message to the terminal, the first request message being used to request the terminal to indicate the first information.

15. The time error group indication method according to claim 13, characterized in that, The location server obtains the first information indicated by the terminal, including: The first association is obtained periodically.

16. The time error group indication method according to claim 15, characterized in that, The periodic acquisition of the first association relationship includes at least one of the following: The receiving terminal sends an indication signaling according to the period T and / or period offset configured by the network-side equipment. The indication signaling is used to indicate the association between the uplink positioning reference signal and the TEG between adjacent period intervals. The first association is obtained from the measurement report of the UE Rx-Tx time difference received by the terminal.

17. The time error group indication method according to claim 16, characterized in that, Also includes: Receive terminal capability information; The terminal capability information includes at least one of the following: Calibration capability information; Rx TEG capability information; Tx TEG capability information; RxTx TEG capability information.

18. The time error group indication method according to claim 13, characterized in that, Also includes: Obtain third information indicated by the base station, the third information being used to assist the location server in performing positioning calculations; The third information includes at least one of the following: The fourth association relationship is used to indicate the association between the uplink positioning measurement results and the fourth TEG.

19. The time error group indication method according to claim 18, characterized in that, Also includes: Indicate the first association to the base station.

20. The time error group indication method according to claim 18, characterized in that, Also includes: Obtain the fourth piece of information indicated by the base station; The fourth piece of information includes at least one of the following: The time difference between the first TEG; The reliability or quality of the time difference between the first TEGs; Method for obtaining the first TEG; The TEG identifier associated with the first TEG.

21. The time error group indication method according to claim 18, characterized in that, Also includes: A ninth indication signaling is sent to the base station, which is used to instruct the base station to calculate and / or report the time difference between the first TEGs, and / or to compensate for the error of the first TEGs in the uplink positioning measurement results.

22. The time error group indication method according to claim 18, characterized in that, The acquisition of the third information indicated by the base station also includes: Obtain the identification information of the uplink positioning reference signal associated with the uplink positioning measurement result; The identification information of the uplink positioning reference signal includes at least one of the following: Uplink positioning reference signal resource ID; Serving cell ID or carrier ID; The timestamp corresponding to the uplink positioning reference signal instance; Frequency domain position information of the carrier in which the uplink positioning reference signal is located.

23. The time error group indication method according to claim 13, characterized in that, It also includes at least one of the following: Obtain terminal capability information; Send the terminal capability information to the base station; The terminal capability information includes one of the following: Calibration capability information; Rx TEG capability information; Tx TEG capability information; RxTx TEG capability information.

24. A time error group indicating device, characterized in that, include: A first indicating unit is configured to indicate first information to a network-side device; wherein the first information includes: The first correlation relationship is used to indicate the correlation between the uplink positioning reference signal and the first time error group (TEG).

25. A time error group indication device, characterized in that, include: The third indication unit is used to indicate third information to the location server, the third information being used to assist the location server in performing positioning calculations. The third information includes: The fourth association relationship is used to indicate the association between the uplink positioning measurement results and the fourth TEG.

26. A time error group indication device, characterized in that, include: The second acquisition unit is used to acquire first information indicated by the terminal, the first information being used to assist the location server in performing positioning calculations. The first information includes: The first correlation relationship is used to indicate the correlation between the uplink positioning reference signal and the first time error group (TEG).

27. A terminal, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the time error group indication method as described in any one of claims 1 to 7.

28. A network-side device, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein when the program or instructions are executed by the processor, they implement the steps of the time error group indication method as claimed in any one of claims 8 to 12, or implement the steps of the time error group indication method as claimed in any one of claims 13 to 23.

29. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the time error group indication method as described in any one of claims 1 to 7, or the steps of the time error group indication method as described in any one of claims 8 to 12, or the steps of the time error group indication method as described in any one of claims 13 to 23.

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