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

Abstract

The application discloses a time error group indication method and device, a terminal and a network side equipment, and belongs to the technical field of communication. The time error group indication method comprises the following steps: a terminal indicates first information to a network side equipment; wherein the first information is used for assisting the network side equipment in 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 in positioning calculation. In the application, the terminal indicates the first information to the network side equipment and / or receives the second information, so as to assist the network side equipment in positioning calculation, reduce or eliminate the influence of the time error group on the positioning precision, and improve the positioning precision.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of communication, and particularly relates to a time error group indication method and device, a terminal and a network side equipment. BACKGROUND

[0002] From the perspective of signal transmission, there will be a time delay from the time of generating a digital signal at a baseband to the time of transmitting a radio frequency (RF) signal from a Tx antenna. In order to support positioning, a terminal (User Equipment, UE) or a transmission and receiving point (TRP) can perform internal calibration / compensation of Tx time delay for transmission of a downlink positioning reference signal (DL PRS) or an uplink sounding reference signal (UL SRS). The Tx time delay remaining after calibration or the uncalibrated Tx time delay is defined as a Tx timing error. From the perspective of signal reception, there will be a time delay from the time of receiving an RF signal at an Rx antenna to the time of processing at a baseband. In order to support positioning, the UE or the TRP can perform internal calibration / compensation of Rx time delay for measurement results of the DL PRS or the UL SRS before reporting the measurement results. The Rx time delay remaining after calibration or the uncalibrated Rx time delay is defined as an Rx timing error.

[0003] For a positioning method based on time measurement, for example, an RTT-based positioning method, a TDOA-based method, when calculating a UE position, the positioning accuracy will be affected by Rx / Tx timing errors of TRPs and UEs. SUMMARY

[0004] Embodiments of the present application provide a time error group indication method and device, a terminal and a network side equipment, which can solve the problem of the influence of Rx / Tx timing errors of TRPs and UEs on positioning accuracy in a positioning method.

[0005] In a first aspect, a time error group indication method is provided, and the method comprises:

[0006] The terminal indicates first information to the network side equipment; wherein the first information is used to assist the network side equipment in performing positioning calculation;

[0007] The first information includes at least one of the following:

[0008] The first association relationship is used to indicate an association relationship between an uplink positioning reference signal and a first time error group (TEG).

[0009] The second association relationship is used to indicate an association relationship between a downlink positioning measurement result and a second TEG.

[0010] In a second aspect, a time error group indication method is provided, which is applied to a network side device, i.e., a base station, and includes the following steps.

[0011] The base station indicates third information to a location server, and the third information is used to assist the location server in performing positioning calculation.

[0012] The third information includes at least one of the following:

[0013] The third association relationship is used to indicate an association relationship between a downlink positioning reference signal and a third time error group (TEG).

[0014] The fourth association relationship is used to indicate an association relationship between an uplink positioning measurement result and a fourth TEG.

[0015] The uplink positioning measurement result.

[0016] In a third aspect, a time error group indication method is provided, which is applied to a network side device, i.e., a location server, and includes the following steps.

[0017] The location server acquires first information indicated by a terminal, and the first information is used to assist the location server or a base station in performing positioning calculation.

[0018] The first information includes at least one of the following:

[0019] The first association relationship is used to indicate an association relationship between an uplink positioning reference signal and a first time error group (TEG).

[0020] The second association relationship is used to indicate an association relationship between a downlink positioning measurement result and a second TEG.

[0021] In a fourth aspect, a time error group indication device is provided, which includes the following components.

[0022] A first indication unit is configured to indicate first information to a network side device, and the first information is used to assist the network side device in performing positioning calculation.

[0023] The first information includes at least one of the following:

[0024] a first association relationship, the first association relationship being used for indicating an association relationship between the uplink positioning reference signal and a first time error group (TEG);

[0025] a second association relationship, the second association relationship being used for indicating an association relationship between the downlink positioning measurement result and a second TEG;

[0026] and / or,

[0027] a first receiving unit, configured to receive second information sent by a network-side device, wherein the second information is used for assisting a terminal and / or the network-side device to perform positioning calculation;

[0028] the second information is used for indicating that a downlink positioning reference signal resource set and / or a downlink positioning reference signal resource has an association relationship with an antenna port of a transmission and reception point (TRP).

[0029] In a fifth aspect, a time error group indication apparatus is provided, and the apparatus includes:

[0030] a third indication unit, configured to indicate third information to a location server, wherein the third information is used for assisting the location server to perform positioning calculation;

[0031] The third information includes at least one of the following:

[0032] a third association relationship, the third association relationship being used for indicating an association relationship between the downlink positioning reference signal and a third time error group (TEG);

[0033] a fourth association relationship, the fourth association relationship being used for indicating an association relationship between the uplink positioning measurement result and a fourth TEG;

[0034] an uplink positioning measurement result;

[0035] and / or,

[0036] a fourth indication unit, configured to indicate second information to a terminal, wherein the second information is used for indicating that a downlink positioning reference signal resource set and / or a downlink positioning reference signal resource has an association relationship with an antenna port of a transmission and reception point (TRP).

[0037] In a sixth aspect, a time error group indication apparatus is provided, and the apparatus includes:

[0038] a second acquisition unit, configured to acquire first information indicated by a terminal, wherein the first information is used for assisting a location server or a base station to perform positioning calculation;

[0039] The first information includes at least one of the following:

[0040] a first association relationship, the first association relationship being used to indicate an association relationship between an uplink positioning reference signal and a first time error group (TEG);

[0041] a second association relationship, the second association relationship being used to indicate an association relationship between a downlink positioning measurement result and a second TEG;

[0042] and / or,

[0043] a sixth indication unit, used to indicate, by the terminal, second information, wherein the second information is used to indicate that a set of downlink positioning reference signal resources and / or a downlink positioning reference signal resource has an association relationship with an antenna port of a transmission and reception point (TRP).

[0044] In a seventh aspect, a terminal is provided, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, and the program or instruction, when executed by the processor, implements the steps of the method according to the first aspect.

[0045] In an eighth aspect, a terminal is provided, which includes a processor and a communication interface, wherein the processor is configured to indicate, to a network side device, first information, 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, the first association relationship being used to indicate an association relationship between an uplink positioning reference signal and a first time error group (TEG); and a second association relationship, the second association relationship being used to indicate an association relationship between a downlink positioning measurement result and a second TEG. The second information is used to assist the terminal and / or the network side device in performing a calculation related to positioning. The second information is used to indicate that a set of downlink positioning reference signal resources and / or a downlink positioning reference signal resource has an association relationship with an antenna port of a transmission and reception point (TRP).

[0046] In a ninth aspect, a network side device is provided, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, and the program or instruction, when executed by the processor, implements the steps of the method according to the second aspect or the steps of the method according to the third aspect.

[0047] 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 calculation; wherein the third information includes at least one of: a third association relationship, the third association relationship being used to indicate an 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 an 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 an association relationship between a downlink positioning reference signal resource set and / or a downlink positioning reference signal resource and an antenna port of a transmission and reception point (TRP).

[0048] In an eleventh aspect, a network-side device is provided, including a processor and a communication interface, wherein the processor is configured to obtain first information indicated by a terminal, the first information being used to assist a location server or a base station in performing positioning calculation; wherein the first information includes at least one of: a first association relationship, the first association relationship being used to indicate an 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 an association relationship between a downlink positioning measurement result and a second TEG; and / or the location server is configured to indicate second information to the terminal, wherein the second information is used to indicate an association relationship between a downlink positioning reference signal resource set and / or a downlink positioning reference signal resource and an antenna port of a transmission and reception point (TRP).

[0049] In a twelfth aspect, a readable storage medium is provided, the readable storage medium storing a program or instructions, the program or instructions being executed by a processor to implement steps of the time error group indication method according to the first aspect, or to implement steps of the time error group indication method according to the second aspect, or to implement steps of the time error group indication method according to the third aspect.

[0050] In a thirteenth aspect, a chip is provided, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to run a program or instructions to implement the time error group indication method according to the first aspect, or to implement the time error group indication method according to the second aspect, or to implement the time error group indication method according to the third aspect.

[0051] 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 steps of the time error group indication method according to the first aspect, or to implement steps of the time error group indication method according to the second aspect, or to implement steps of the time error group indication method according to the third aspect.

[0052] In the embodiments of the present application, the terminal indicates the first information to the network side device and / or receives the second information, thereby assisting the network side device in positioning calculation, reducing or eliminating the influence of the time error group on the positioning accuracy, and improving the positioning accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0053] Figure 1 A block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0054] Figure 2 A flowchart of a time error group indication method provided by the embodiments of the present application;

[0055] Figure 3 A schematic diagram of an event-triggered indication method provided by the embodiments of the present application;

[0056] Figure 4 A schematic diagram of an aperiodic indication method provided by the embodiments of the present application;

[0057] Figure 5 A schematic diagram of a periodic indication method provided by the embodiments of the present application;

[0058] Figure 6 A flowchart of a time error group indication method provided by the embodiments of the present application;

[0059] Figure 7 A flowchart of a time error group indication method provided by the embodiments of the present application;

[0060] Figure 8 A structural schematic diagram of a time error group indication apparatus provided by the embodiments of the present application;

[0061] Figure 9 A structural schematic diagram of a time error group indication apparatus provided by the embodiments of the present application;

[0062] Figure 10 A structural schematic diagram of a time error group indication apparatus provided by the embodiments of the present application;

[0063] Figure 11 A structural schematic diagram of a communication device provided by the embodiments of the present application;

[0064] Figure 12 A hardware structural schematic diagram of a terminal for implementing the embodiments of the present application;

[0065] Figure 13 A structural schematic diagram of a network side device provided by the embodiments of the present application. DETAILED DESCRIPTION

[0066] With reference to the drawings and the embodiments described herein, it will be understood that the embodiments are presented by way of example only and are not exhaustive of all embodiments. Any other embodiments obtained by persons of ordinary skill in the art based on the embodiments described herein are within the scope of the present application.

[0067] The terms "first", "second", and the like in the description and in the claims of the present application are used for distinguishing between similar objects and are not necessarily used to describe a specific sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the present application described herein are, for example, capable of orderly or chronological logical or other grouping, permutations, combinations, and the like, of the objects in the description and / or claims of the present application without resort to disease. It is to be understood that the term "first", "second", and the like, as used in the description and the claims of the present application, are not necessarily used to describe a specific sequential or chronological order, except where expressly recited based on a specific context to be thereto. Generally, the terms "first", "second", and the like can be used herein to describe various elements, regions, and / or sections in the examples of the present application. Terms in the description and the claims of the present application, such as "and / or", are intended to cover all possible cases of the connected objects, and the character " / " generally represents an "or" relationship between the front and rear associated objects.

[0068] It is worth noting that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied outside the NR system application, such as 6th Generation (6G) communication systems. th

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

[0070] The time error group indication method, apparatus, terminal and network side device provided by the embodiments of the present application will be described in detail below in combination with the accompanying drawings and some embodiments and application scenarios.

[0071] Figure 2 One of the flowcharts of the time error group indication method provided by the embodiments of the present application is shown in FIG. 2. As shown in FIG. 2, the time error group indication method includes the following steps: Figure 2

[0072] 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 positioning calculation.

[0073] ​The first information includes at least one of the following:

[0074] The first association relationship is used to indicate an association relationship between the uplink positioning reference signal and a first time error group (TEG).

[0075] The second association relationship is used to indicate an association relationship between the downlink positioning measurement result and a second TEG.

[0076] The time error group (TEG) can also be referred to as a panel (i.e., an antenna panel).

[0077] The time error group includes at least one of the following: Tx TEG, Rx TEG, RxTx TEG, {Rx TEG, Tx TEG}.

[0078] For the terminal side, the time error group includes at least one of the following: UE Tx TEG, UE Rx TEG, UE RxTx TEG, {UE Rx TEG, UE Tx TEG}; and for the network side, the time error group includes one of the following: TRP Tx TEG, TRP Rx TEG, TRP RxTx TEG, {TRP Rx TEG, TRP Tx TEG}.

[0079] In the embodiments of the present application, the first TEG includes at least one of the following: Tx TEG, RxTx TEG, i.e., UE Tx TEG, UE RxTx TEG.

[0080] Optionally, the first TEG is a time error group in which the terminal transmits the uplink positioning reference signal.

[0081] The second TEG includes at least one of the following: Rx TEG, RxTx TEG, {Rx TEG, Tx TEG}, i.e., UE Rx TEG, UE RxTx TEG, {UE Rx TEG, UE Tx TEG}.

[0082] Optionally, the second TEG is a time error group in which the terminal receives the downlink positioning reference signal.

[0083] It should be noted that the terminal in the embodiments of the present application is not limited to a terminal in a connected state, a terminal in an idle state, or a terminal in an inactive state. The network side device in the embodiments of the present application is a location server (Location Management Function, LMF) or a base station. The base station includes a serving gNB and / or a neighboring gNB.

[0084] Optionally, in the idle state or the inactive state, the terminal sends information to the network device in a manner including but not limited to at least one of the following: small data transmission (SDT), the same as the idle state or the inactive state positioning measurement information reporting manner, and the like; and the network device sends information to the terminal device in a manner including but not limited to at least one of the following: a broadcast message, an RRC release message, a message in random access (such as Msg2, MsgB, Msg4), a paging message, and the like.

[0085] Optionally, the signaling between the location server and the UE includes 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)), LTE positioning protocol annex (LPPa and signaling between (gNB and UE)).

[0086] The 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 message (including but not limited to Msg2, Msg4, MsgB), broadcast message, paging.

[0087] 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, random access message: including but not limited to Msg1, Msg3, MsgA.

[0088] The signaling between the gNB and the location server includes but is not limited to one of the following: LPPa, NRPPa.

[0089] In order to reduce or eliminate the influence of Rx / Tx timing error on positioning accuracy, in the embodiments of the present application, the terminal indicates the association relationship between the uplink positioning reference signal and the first time error group TEG, and / or the association relationship between the downlink positioning measurement result and the second TEG to the network side device, to assist the network side device in positioning calculation.

[0090] The association relationship can be represented by the associated TEG identifier ID, or the uplink positioning reference signal or the downlink positioning measurement result of the same TEG is divided into a group, or represented in other ways.

[0091] The uplink positioning reference signal can be an SRS or other signal available for uplink positioning. The SRS can be a positioning SRS or an SRS for multi-antenna transmission.

[0092] The downlink positioning measurement result is obtained by the terminal measuring a received downlink positioning reference signal.

[0093] The downlink positioning reference signal can be a PRS or other signal available for downlink positioning.

[0094] The downlink positioning measurement result includes at least one of a downlink reference signal time difference (DL RSTD), a UE Rx-Tx time difference measurement result, or other types of downlink measurement results.

[0095] The other types of downlink measurement results can be a DL-RSRP, which is not specifically limited in the present application.

[0096] Optionally, in downlink positioning, the same UE can receive downlink positioning reference signals (such as PRS) from multiple TRPs and obtain multiple downlink positioning measurement results. If the multiple downlink positioning measurement results can be associated with the same UE Rx TEG, the difference between the multiple downlink positioning measurement results can be made to eliminate the same terminal reception time error (UE Rx timing error). Optionally, when the terminal reports the downlink positioning measurement result to the network side device (such as a location server), the terminal can indicate the association between the downlink positioning measurement result and the UE Rx TEG to assist the network device to complete further positioning calculation.

[0097] Optionally, in uplink positioning, when the UE transmits an uplink positioning reference signal (such as an SRS), the UE can indicate the association between the SRS and the UE Tx TEG.

[0098] Optionally, in downlink + uplink positioning, such as the RTT positioning method, the UE reports a Rx-Tx time difference measurement result, which can indicate the association between the measurement result and the UE Tx TEG and the UE Rx TEG.

[0099] And / or,

[0100] 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 to perform positioning calculation.

[0101] The performing the calculation related to the positioning comprises a downlink angle of arrival based positioning calculation or an antenna port related positioning calculation.

[0102] The second information is used to indicate that the downlink positioning reference signal resource set and / or the downlink positioning reference signal resource has an association relationship with the antenna port of the transmission and reception point (TRP).

[0103] In the embodiments of the present application, by indicating the first information to the network side device and / or receiving the second information, the network side device is assisted to perform the positioning calculation, thereby reducing or eliminating the influence of the time error group on the positioning accuracy and improving the positioning accuracy.

[0104] Optionally, after the terminal receives the second information sent by the network side device, the following one is performed:

[0105] The UE assumes that a plurality of downlink positioning reference signal resource sets of the TRP have an association relationship with a plurality of antenna ports of the TRP;

[0106] The UE assumes that a plurality of downlink positioning reference signal resources in the downlink positioning reference signal resource set have an association relationship with a plurality of antenna ports of the TRP;

[0107] The UE assumes that a plurality of repeated downlink positioning reference signal resources corresponding to the same downlink positioning reference signal resource identifier have an association relationship with a plurality of antenna ports of the TRP.

[0108] The association relationship is that the PRS resource set, the PRS resource and / or the repeated PRS resource is sent from a certain port of the TRP.

[0109] Optionally, the plurality of downlink positioning reference signal resource sets of the TRP have an association relationship with a plurality of antenna ports of the TRP, comprising one of the following:

[0110] Different downlink positioning reference signal resource sets are associated with different groups of TRP antenna ports; for example, 2 PRS resource sets and 8 TRP ports. Each resource set corresponds to 2 TRP port groups, and one TRP port group contains 4 antenna ports.

[0111] At least one downlink positioning reference signal resource set is associated with 1 group of TRP antenna ports; for example, 2 PRS resource sets and 8 TRP ports. One PRS resource set is associated with all TRP ports, and the other PRS resource set is also associated with all TRP ports.

[0112] The 1 group of antenna ports of the TRP contains at least 1 TRP antenna port. Optionally, the 1 group of antenna ports of the TRP here can also correspond to 1 TRP panel or 1 TRP Tx TEG (or TRP RxTx TEG).

[0113] Optionally, the multiple downlink positioning reference signal resources in the downlink positioning reference signal resource set have an association with multiple antenna ports of a TRP, including one of the following:

[0114] In the downlink positioning reference signal resource set, different downlink positioning reference signal resources are associated with different antenna ports of a TRP; for example, the PRS resource set has 8 PRS resources, and the PRS resource set is associated with 8 TRP ports. Each resource corresponds to one TRP port.

[0115] In the downlink positioning reference signal resource set, at least one downlink positioning reference signal resource is associated with the same antenna port of a TRP;

[0116] Among them, one downlink positioning reference signal resource is associated with one or more TRP antenna ports.

[0117] For example, the 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. Or, one PRS resource corresponds to one TRP port, and the other PRS resource corresponds to another TRP port, and the remaining 6 PRS resources are divided into the remaining 2 ports.

[0118] Among them, the corresponding / association mode of the PRS resource and the TRP port can be agreed 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).

[0119] Optionally, the same downlink positioning reference signal resource identifies that the corresponding multiple repeated downlink positioning reference signal resources have an association with multiple antenna ports of a TRP, including one of the following:

[0120] Different repeated downlink positioning reference signal resources are associated with different antenna ports of a TRP; for example, one PRS resource is associated with two ports. The same PRS resource identifies two repeated PRS resources, each corresponding to one port.

[0121] At least one repeated downlink positioning reference signal resource is associated with the same antenna port of a TRP. For example, one PRS resource is associated with one port. The same PRS resource identifies two repeated PRS resources, and the two repeated PRS resources correspond to the same port. Or, one PRS resource is associated with two ports. The same PRS resource identifies four repeated PRS resources, then two repeated PRS resources correspond to the same port, and the other two repeated resources correspond to another port.

[0122] Optionally, the downlink positioning reference signal resource set, and / or the downlink positioning reference signal resource, and / or the repetition of the downlink positioning reference signal resource, should be associated with all antenna ports of the TRP.

[0123] Optionally, the second information further comprises a function indication of the downlink positioning reference signal resource set and / or the downlink positioning reference signal resource.

[0124] Optionally, after the terminal receives the second information sent by the network side device, the method further comprises:

[0125] The terminal measures the channels of different ports and performs a codebook traversal process to obtain the best codebook and / or the best angle of departure (AOD) matching the channel. After the terminal receives the second information sent by the network device, the terminal behavior can be determined by at least one of protocol agreement, network indication, and terminal selection.

[0126] Optionally, the second information further comprises at least one of:

[0127] The association relationship between the downlink positioning reference signal resource set and the antenna ports of the TRP;

[0128] The association relationship between the downlink positioning reference signal resource and the antenna ports of the TRP;

[0129] The association relationship between the repetition of the downlink positioning reference signal resource and the antenna ports of the TRP.

[0130] Optionally, before the terminal indicates the first information to the network side device, the method further comprises:

[0131] The terminal receives a first request message sent by the network side device, and the first request message is used to request the terminal to indicate the first information.

[0132] Optionally, for a scenario with low positioning accuracy requirement, the network side device can require the terminal not to provide the first information. Therefore, the 'first request message' can be disabled.

[0133] Optionally, when the terminal indicates the first information in the present application, the description of 'network side device indication' can be included in the first request message.

[0134] The following further describes how the terminal indicates the first information to the network side device.

[0135] In some optional embodiments, the first information comprises a first association relationship, and the terminal indicating the first information to the network side device comprises at least one of:

[0136] Indicating the first association relationship through a sequence of uplink positioning reference signals;

[0137] The first association relationship is indicated by a mapping manner of the uplink positioning reference signal.

[0138] The first association relationship is indicated by an event triggering manner.

[0139] The first association relationship is indicated by non-periodicity.

[0140] The first association relationship is indicated by periodicity.

[0141] The uplink positioning reference signal can be an SRS or other signals available for uplink positioning.

[0142] It should be noted that the uplink positioning reference signal can be an uplink positioning reference signal resource resource or an uplink positioning reference signal resource set resource set, the uplink positioning reference signal resource can be one or more, and the uplink positioning reference signal resource set can be one or more.

[0143] Optionally, the SRS can be an SRS resource or an SRS resource set. The SRS resource can be one or more, and the SRS resource set can be one or more.

[0144] Optionally, the terminal indicates the 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 manners:

[0145] The first association relationship is indicated by a sequence of the uplink positioning reference signal.

[0146] Optionally, the association relationship between the uplink positioning reference signal and the first TEG is indicated by a 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 is different. It can be understood that the SRS for positioning currently only supports one port, and the SRS associated with different TEGs can be regarded as expanding the SRS to multiple ports, and the SRS associated with each port is equivalent to the SRS associated with each Tx TEG.

[0147] Optionally, the sequence of the uplink positioning reference signal is generated according to a cyclic shift corresponding to the first TEG associated with the uplink positioning reference signal, wherein different first TEGs correspond to different cyclic shifts.

[0148] Wherein, the different cyclic shifts are related to the number of different first TEGs and Tx TEGs.

[0149] In an embodiment, taking the uplink positioning reference signal SRS as an example, the network indicates or agrees on a set of cyclic shift sets, and the SRS of different TEGs correspond to respective cyclic shift values to generate the SRS sequence. When TEG0 is associated with SRS, the UE generates a sequence using the cyclic shift corresponding to TEG0 and sends it; when TEG1 is associated with SRS, the UE generates a sequence using the cyclic shift corresponding to TEG1 and sends it.

[0150] Optionally, the first association relationship is indicated by a mapping manner of the uplink positioning reference signal.

[0151] Optionally, the association relationship between the uplink positioning reference signal and the first TEG is represented by a mapping manner of the uplink positioning reference signal. For example, for the same SRS resource, the Tx TEG changes between different periods, and the mapping pattern on different periods of the same SRS resource will be different.

[0152] Optionally, the mapping manner 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 a frequency division multiplexing (FDM) manner.

[0153] Wherein, the FDM manner distinguishes different TEGs and the number of Tx TEGs.

[0154] In an optional embodiment, the 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 SRS, the UE sends SRS using the time-frequency position corresponding to TEG1.

[0155] Optionally, when the number of first TEGs supported by the UE is large, the sequence of the uplink positioning reference signal and the mapping manner thereof can be combined to jointly distinguish multiple first TEGs.

[0156] Optionally, before the terminal indicates the first association relationship by the sequence of the uplink positioning reference signal or the mapping manner of the uplink positioning reference signal, it further includes:

[0157] The terminal receives first indication signaling sent by the network side device, and the first indication signaling is used to indicate that the terminal starts or enables the function of indicating the first association relationship by the sequence and / or mapping mode of the uplink positioning reference signal.

[0158] The terminal starts the function of indicating the first association relationship by the sequence and / or mapping mode of the uplink positioning reference signal.

[0159] Optionally, the network side device can indicate whether to start the function of indicating the association relationship between the SRS and the TEG by the sequence and / or mapping mode, for example, by indicating through a switch.

[0160] In an embodiment, when the serving gNB receives a request from the location server, for example, a request to obtain the association relationship between the SRS and the Tx TEG (in real time), the serving gNB can indicate the UE to start or stop. The UE indicates the association relationship between the SRS and the Tx TEG by the sequence and / or mapping mode according to the indication. For example, in a scenario where the UE only supports / associates one Tx TEG, or in a scenario where the requirement for positioning accuracy is not high, the switch is set to "off" or a default indication is made.

[0161] Optionally, the sequence of the uplink positioning reference signal and / or the mapping mode of the uplink positioning reference signal is obtained by at least one of the following modes: protocol agreement, network indication, and terminal selection. That is, whether the terminal uses the "sequence mode", the "mapping mode", or the "sequence + mapping" mode to indicate the relationship between the uplink positioning reference signal and the first TEG can be determined by the protocol agreement, the network indication, and / or the terminal selection.

[0162] Optionally, the association relationship between the uplink positioning reference signal and the first TEG can also be indicated in a display manner, including at least one of the following modes:

[0163] The first association relationship is indicated by an event triggering mode;

[0164] The first association relationship is indicated in a non-periodic manner;

[0165] The first association relationship is indicated in a periodic manner.

[0166] Optionally, the first association relationship is indicated by the event triggering mode, including:

[0167] In a case where the first TEG associated with the uplink positioning signal changes during the transmission of the uplink positioning reference signal, the terminal is triggered to send TEG indication signaling;

[0168] The TEG indication signaling is used to indicate the first association relationship or that the first association relationship has changed.

[0169] For example, during the SRS transmission process, if the TEG associated with the SRS changes, the UE is triggered to send TEG indication signaling to indicate the association relationship or the change of the association relationship between the SRS and the TEG.

[0170] Optionally, before the terminal sends the TEG indication signaling, the method further comprises:

[0171] The terminal sends the second indication signaling at least once, and the second indication signaling is used to indicate the first association relationship.

[0172] It can be understood that before the event-triggered indication, the UE indicates the association relationship between the uplink positioning reference signal and the first TEG at least once.

[0173] Optionally, the content of the TEG indication signaling comprises one of the following:

[0174] indicating that the association relationship between the uplink positioning reference signal of the nearest uplink positioning reference signal instance before the TEG indication signaling and the first TEG has changed, and the TEG indication signaling is valid until the nearest second uplink positioning reference signal instance before the next TEG indication signaling;

[0175] indicating that the association relationship between the uplink positioning reference signal of the nearest uplink positioning reference signal instance after the TEG indication signaling and the first TEG has changed, and the TEG indication signaling is valid until the nearest uplink positioning reference signal instance before the next TEG indication signaling.

[0176] The association relationship has changed means that the association relationship between the uplink positioning reference signal of the period and the first TEG has changed compared with the association relationship between the uplink positioning reference signal of the previous period and the first TEG.

[0177] It can be understood that "indicating that the association relationship between the uplink positioning reference signal of the nearest uplink positioning reference signal instance before the TEG indication signaling and the first TEG has changed" can also be expressed as "indicating the association relationship between the uplink positioning reference signal of the nearest uplink positioning reference signal instance before the TEG indication signaling and the first TEG".

[0178] "indicating that the association relationship between the uplink positioning reference signal of the nearest uplink positioning reference signal instance after the TEG indication signaling and the first TEG has changed" can also be expressed as "indicating the association relationship between the uplink positioning reference signal of the nearest uplink positioning reference signal instance after the TEG indication signaling and the first TEG".

[0179] 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.

[0180] 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.

[0181] The following example illustrates how to indicate the first association through event triggering. Figure 3 This is a schematic diagram of the event triggering indication method provided in the embodiments of this application.

[0182] Method 1:

[0183] 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:

[0184] The first SRS instance;

[0185] The previous SRS instance before SRS instance X;

[0186] Other network indications / protocol agreements / a specific SRS instance selected by the UE.

[0187] Here, the effective time of this signaling instruction 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.

[0188] Optionally, the signaling of the UE indicating the SRS instance X is not later than a time T after the SRS instance X, where T can be agreed by a protocol or indicated by a network.

[0189] Optionally, before the event-triggered indication, the UE reports at least once the association relationship between the SRS and the Tx TEG, such as reporting the association relationship in the initial stage of SRS transmission (such as the first SRS instance) or the association relationship of a certain SRS instance (indicated by the network / agreed by the protocol / selected by the UE).

[0190] Method two:

[0191] The UE expects that the association relationship between the SRS of a certain SRS instance and the Tx TEG will change, such as the UE completing panel switching (expecting that the relationship between the SRS and the Tx TEG will change after that), triggering the UE to indicate the relationship change. In this way, the signaling indicates the association relationship between the SRS and the TEG in the time period from the signaling to the next signaling. For example, Figure 3 The first indication signaling indicates the association relationship between the SRS in the SRS instance 3 and the SRS instance 4 and the TEG.

[0192] Optionally, before the event-triggered indication, the UE reports at least once the association relationship between the SRS and the Tx TEG, such as reporting the association relationship in the initial stage of SRS transmission (such as the first SRS instance) or the association relationship of a certain SRS instance (indicated by the network / agreed by the protocol / selected by the UE).

[0193] Optionally, the aperiodic indication first association relationship includes:

[0194] The terminal sends a third indication signaling at a first time t, and the third indication signaling is used to indicate the association relationship between the uplink positioning reference signal of the uplink positioning reference signal instance and the first TEG in a first time window before the first time t.

[0195] The first time window includes the last P uplink positioning reference signal instances before the first time t, and P is a positive integer, and P is obtained by at least one of a protocol agreement, a network indication, and a terminal selection.

[0196] Optionally, the first time t is a UE reporting time. The first time t is indicated by a network side device through a downlink control information DCI signaling and an offset.

[0197] The DCI signaling is used to trigger the transmission of the aperiodic uplink positioning reference signal.

[0198] The following is a specific example to illustrate the non-periodic indication of the first association relationship. Figure 4 The schematic diagram of the non-periodic indication mode provided for the embodiments of the present application.

[0199] If the UE reports the indication at time t, the UE reports the association relationship between the SRS instance in a certain time window before t and the TEG.

[0200] Optionally, the time window is composed of the last N SRS instances before t. N is a positive integer, which can be agreed by the protocol, indicated by the network, or selected by the UE. For example, when N is 1, the measurement result of the 1 SRS instance before the reporting indication signaling is reported, such as Figure 4 SRS instance 2 in

[0201] Optionally, the time t can be indicated by the network, such as DCI signaling + offset indication. Optionally, the DCI signaling can be the DCI triggering the non-periodic SRS.

[0202] Optionally, the periodic indication of the first association relationship comprises:

[0203] The fourth indication signaling is sent according to a period T and / or a period offset, and the fourth indication signaling is used to indicate the association relationship between the (containing at least one uplink positioning reference signal instance) uplink positioning reference signal in the adjacent period interval time and the first TEG.

[0204] The period T and / or the period offset are obtained by at least one of the following modes: protocol agreement, network indication, and terminal selection.

[0205] The periodic indication is generally that the terminal sends the indication according to the network configured period and / or period offset; or the terminal first receives the network preconfigured period and / or offset, and then receives the activation indication (such as MAC CE activation signaling) of the network to activate the terminal to send the indication.

[0206] Optionally, the period T is related to the sending period of the uplink positioning reference signal. For example, the period T is Q times of the SRS period, and Q is a positive integer.

[0207] Optionally, the period T is related to the period of the uplink positioning measurement result reported by the base station gNB. For example, the period T is Q times of the SRS measurement result reporting period of the gNB, and Q is a positive integer.

[0208] Optionally, in the case that the association relationship between the uplink positioning reference signal sent in a certain period and the first TEG is consistent with the association relationship between the uplink positioning reference signal sent in the previous period or the first period and the first TEG, the fourth indication signaling indicates that the association relationship has no change through 1 bit of the fourth indication signaling, or the association relationship is indicated by default.

[0209] The periodic indication of the first association relationship is further illustrated by a specific example below. Figure 5 A schematic diagram of the periodic indication manner provided by the embodiments of the present application.

[0210] Manner three:

[0211] A certain measurement report report, report the association relationship between this report and the last report SRS instance SRS and Tx TEG. For example, as shown in the following table, the association relationship of SRS and Tx TEG of three SRS instances is reported. Figure 5

[0212] Manner four:

[0213] (1) Indicate the association relationship between SRS and Tx TEG in the first SRS instance (such as SRS instance 1) in this report.

[0214] Regarding the 'first SRS instance', it is not specifically limited in the embodiments of the present application. The first SRS instance here can also be represented as 'Nth SRS instance','reference SRS instance', or other protocol agreement, network indication or UE selection of a certain SRS instance.

[0215] Among them, the association relationship between SRS and Tx TEG in the first SRS instance can be indicated by one of the following manners:

[0216] In each report, the association relationship between SRS and Tx TEG in the first SRS instance must be explicitly indicated;

[0217] If the association relationship of the first SRS instance is different from that in the first report, it is explicitly indicated, otherwise it is indicated by default (it is considered to be the same as the association relationship of the first SRS instance in the first report);

[0218] If the association relationship of the first SRS instance is different from that in the last report, it is explicitly indicated, otherwise it is indicated by default (it is considered to be the same as the association relationship of the first SRS instance in the last report);

[0219] ​The association relationship of the last SRS instance in the last report is different, and the association relationship is explicitly indicated, otherwise the association relationship is considered to be the same as that of the last SRS instance in the last report.

[0220] (2) Indicate the association relationship of the SRS and the Tx TEG in the subsequent SRS instance (such as SRS instance 2, SRS instance 3) in this report in multiple sub-ways, including one of the following:

[0221] The association relationship of the SRS and the Tx TEG in the subsequent SRS instance is different from that in the first SRS instance, and the association relationship is explicitly indicated, otherwise the association relationship is considered to be the same as that in the first SRS instance.

[0222] The association relationship of the SRS and the Tx TEG in a certain SRS instance is changed compared with that in the first SRS instance, and the association relationship is explicitly indicated, otherwise the association relationship is considered to be the same as that in the first SRS instance.

[0223] Optionally, the explicitly indicated signaling includes at least one of uplink control information (UCI) signaling, medium access layer control element (MAC CE) signaling, radio resource control (RRC) signaling, and LTE positioning protocol (LPP) signaling.

[0224] Optionally, the periodic indication of the first association relationship includes:

[0225] The first association relationship is indicated in the measurement report of the terminal receiving the UE Rx-Tx time difference.

[0226] Optionally, in the RTT positioning method or (or Multi-RTT positioning method), the UE periodically indicates the association relationship 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.

[0227] Optionally, the first association relationship includes identification information of the uplink positioning reference signal.

[0228] The identification information of the uplink positioning reference signal includes at least one of the following:

[0229] An uplink positioning reference signal resource set identification ID;

[0230] An uplink positioning reference signal resource ID;

[0231] A serving cell ID or a carrier ID;

[0232] A bandwidth BWP ID;

[0233] A bandwidth indicator;

[0234] A time stamp corresponding to an uplink positioning reference signal instance;

[0235] An uplink positioning reference signal instance identification;

[0236] Frequency domain location information of a carrier and / or BWP where the uplink positioning reference signal is located.

[0237] The frequency domain location information includes a starting position of the carrier and / or BWP, a bandwidth, an SCS, a point A, and the like.

[0238] Of course, the frequency domain location information can also be replaced by other information that can identify the carrier and / or BWP where the uplink positioning signal is located.

[0239] Optionally, the first information includes a second association relationship, and the terminal indicates to the network side device that the first information includes:

[0240] In the case where the downlink positioning measurement result includes a downlink reference signal time difference DL-RSTD or a receive-transmit time difference Rx-Tx time difference or other types of downlink measurement results, for the target positioning measurement result, the terminal indicates the association relationship between the target positioning measurement result and the N second TEGs.

[0241] The target positioning measurement result is a positioning measurement result obtained by the terminal measuring a target downlink positioning reference signal resource.

[0242] It can be understood that the target positioning measurement result refers to a downlink positioning measurement result under a certain downlink positioning reference signal resource (for example, a PRS resource).

[0243] The terminal indicates that the target positioning measurement result is associated with the N second TEGs, and N is a positive integer greater than or equal to 1, which is obtained by at least one of the following: protocol agreement, network indication, and terminal selection.

[0244] In some embodiments, the second association relationship is used to indicate an association relationship between the downlink positioning measurement result and a second TEG, where the second TEG can be at least one of an Rx TEG, an RxTx TEG, and an {Rx TEG, Tx TEG}.

[0245] It can be understood that, in some embodiments, the second TEG is an Rx TEG.

[0246] Optionally, the downlink positioning measurement result is related to N reception time error groups Rx TEGs, indicating that at the same time, the UE receives the same downlink positioning reference signal resource using multiple Rx panels.

[0247] Alternatively, the same downlink positioning reference signal resource is transmitted repeatedly (i.e., configured with repetition), and the UE performs Rx beam sweeping, and the Rx panel switching occurs during the Rx beam sweeping.

[0248] Alternatively, the UE receives signals at different periods of different downlink positioning reference signals, and the Rx panel switching occurs.

[0249] Optionally, the terminal indicates an association relationship between the target positioning measurement result and N second TEGs, including at least one of the following:

[0250] The terminal indicates a path associated with the N second TEGs.

[0251] It should be noted that "the terminal indicates a path associated with the N second TEGs" can also be expressed as "the terminal indicates a path associated with each of the N second TEGs", and it can be understood that the terminal indicates a path associated with each second TEG associated with the target positioning measurement result. Wherein, the path can be a first path and / or an additional path. That is, per path or per path-group indicates the association relationship with the second TEG.

[0252] Optionally, when N = 1, the UE reports a second TEG associated with the first path. In other words, when N = 1, per PRS resource indicates the association relationship with the second TEG.

[0253] Optionally, the terminal indicates an Rx beam index associated with the N second TEGs.

[0254] It can be understood that the terminal indicates the receive beam indexes associated with the N second TEGs, and the measurement result associated with a certain Rx TEG is also related to the Rx beam index.

[0255] Optionally, the Rx beam index here can not be an absolute Rx beam index, and can be used only to distinguish that the measurement result associated with the Rx TEG is obtained by different Rx beam measurement.

[0256] Optionally, the N Rx TEGs are associated with only one Rx beam or are irrelevant to the Rx beam, and a default indication is performed.

[0257] In an implementation mode, for a certain PRS resource (i.e., a target downlink positioning reference signal resource), the UE reports the measurement result of the PRS resource. The measurement result is divided into N groups according to the N Rx TEGs. For the measurement result of a certain group, in addition to being associated with a certain TEG, one or more Rx beams are associated, and the UE can report the corresponding Rx beam index. When multiple Rx beams are associated, the measurement result of the group is obtained by joint measurement of the multiple Rx beams; when one Rx beam is associated, the measurement result of the group is obtained by measurement of the certain Rx beam (of course, the certain Rx beam can also be the best Rx beam selected from multiple Rx beams).

[0258] Optionally, the terminal indicates that the N second TEGs are obtained by multiple receive beams Rx beam scanning or by simultaneous measurement of the target downlink positioning reference signal resource.

[0259] Optionally, the terminal indicates whether the associated N Rx TEGs are obtained by multiple Rx beam scanning or by simultaneous measurement of the PRS resource.

[0260] Optionally, the terminal indicates the time stamp of the downlink positioning measurement result associated with the N second TEGs.

[0261] The terminal indicates the time stamp of the downlink positioning measurement result associated with the N second TEGs, indicating that the measurement results associated with different second TEGs are obtained from different time stamps. Here, the time stamp can represent measurement of different periods or measurement at different times of the same period.

[0262] Optionally, the terminal indicates the time difference between the N second TEGs.

[0263] The UE selects or indicates a certain Rx TEG 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 in all paths.

[0264] Optionally, the terminal indicates the position information of the N second TEGs associated inside the terminal.

[0265] The position information includes at least one of the following: the distance or distance difference of the N Rx TEGs associated inside the terminal, or the difference of the panel positions corresponding to the N Rx TEGs.

[0266] Optionally, the terminal reports the downlink positioning measurement results associated with the N second TEGs.

[0267] Different Rx TEGs correspond to different measurement results, and the terminal indicates the association relationship between the measurement results and the Rx TEGs and reports the corresponding measurement results.

[0268] Optionally, the association relationship between the target positioning measurement result and the N second TEGs is indicated in the downlink positioning measurement results corresponding to different timestamps.

[0269] Optionally, the association relationship between the target positioning measurement result and the N second TEGs is consistent with the previous (or first) time, and the terminal can use 1 bit to indicate no change or default indication.

[0270] Optionally, the network indicates or agrees by protocol that the terminal must report the association relationship between the target positioning measurement result and multiple second TEGs when the first preset condition is met.

[0271] The first preset condition includes but is not limited to at least one of the following:

[0272] The quality of the downlink positioning measurement result associated with multiple second TEGs exceeds a first preset threshold.

[0273] For example, the value of the path associated with multiple Rx TEGs exceeds a certain threshold (such as the power of the first path exceeding a certain threshold), or the RSRP of the measurement result associated with multiple Rx TEGs exceeds a certain threshold.

[0274] The downlink positioning measurement result associated with multiple second TEGs is a line of sight (LOS) measurement result, or the LOS probability of the downlink positioning measurement result is higher than a second preset threshold.

[0275] The terminal performs receive beam sweeping, different receive beams Rx beams are associated with different second TEGs, and the quality of the downlink positioning measurement results corresponding to the multiple receive beams exceeds a third preset threshold.

[0276] It should be noted that generally, when N>1, "multiple" can be understood as "N". Alternatively, when N>1, "multiple" can be understood as "at least two". Alternatively, "multiple" can be less than "N", or "multiple" can be greater than "N".

[0277] Alternatively, in another implementation, when the first preset condition is met, the UE can report the association relationship between the target positioning measurement result and the multiple second TEGs, and / or report the difference of the time error between the multiple second TEGs, and / or compensate the difference of the time error between the multiple second TEGs in the reported measurement result. The UE behavior can be determined by at least one of network indication, protocol agreement, and UE selection.

[0278] Alternatively, the UE reporting the association relationship between the target positioning measurement result and the multiple second TEGs, and / or reporting the difference of the time error between the multiple second TEGs, and / or compensating the difference of the time error between the multiple second TEGs in the reported measurement result can be determined by at least one of network indication, protocol agreement, and UE selection.

[0279] Alternatively, the terminal indicating the association relationship between the target positioning measurement result and the N second TEGs comprises:

[0280] In the case that the terminal is configured with the quasi-co-site (QCL) relationship of the target downlink positioning reference signal resource, the terminal indicates the association relationship between the target positioning measurement result and one second TEG.

[0281] For example, for a certain PRS resource, when the UE is configured with the QCL relationship of the PRS resource, N can only be 1.

[0282] Alternatively, in the case that 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.

[0283] For example, when a certain PRS resource is configured with a QCL indication, the UE is not expected to be requested to indicate the association of N>1 Rx TEGs.

[0284] Alternatively, before performing the measurement, the terminal receives fifth indication signaling sent by the network side device, and the fifth indication signaling is used to instruct the terminal to measure the target downlink positioning reference signal resource in the Rx TEG sweeping manner.

[0285] Rx TEG sweeping can be understood as sweeping of different Rx beams over multiple Rx TEGs. The network-side device sends a fifth indication signaling to ensure that the UE can calculate the difference between Rx TEGs.

[0286] Optionally, the terminal measures the target downlink positioning reference signal resource in an Rx TEG sweeping manner, and at least one of the following conditions needs to be met:

[0287] The network-side device does not indicate the spatial QCL information of the target downlink positioning reference signal resource.

[0288] The network-side device indicates that the target downlink positioning reference signal resource is repeated.

[0289] Optionally, when the network-side device indicates "Rx TEG sweeping", the QCL information (such as QCL-D, i.e. spatial QCL relationship) of the target downlink positioning reference signal resource cannot be indicated at the same time.

[0290] Optionally, when the network-side device indicates "Rx TEG sweeping", the target downlink positioning reference signal resource must be indicated to be repeated. Further, the number of repetitions is required to be greater than a certain threshold.

[0291] Optionally, the indication that the terminal measures the target downlink positioning reference signal resource in an Rx TEG sweeping manner includes at least one of the following:

[0292] The terminal is instructed to measure the target downlink positioning reference signal resource in an Rx TEG sweeping manner once across M periods, where M is a positive integer, and M is obtained by at least one of the following: protocol agreement, network indication, or terminal selection. Here, "measuring once in an Rx TEG sweeping manner across M periods" means "measuring once in an Rx TEG sweeping manner in M periods".

[0293] Optionally, the terminal is instructed to measure the target downlink positioning reference signal resource in an Rx TEG sweeping manner once across different downlink positioning reference signal instances (i.e. downlink positioning reference signal periods).

[0294] For example, for the same PRS resource (set), a measurement is generated once in multiple periods, and beam sweeping can be performed in multiple periods.

[0295] Optionally, the terminal is instructed to perform sweeping in part of Rx TEGs, or instructed to perform sweeping across part of Rx TEGs.

[0296] That is, the Rx TEG sweeping indication can limit the sweeping to only a few Rx TEGs, or indicate the UE to perform sweeping across which Rx TEGs.

[0297] Optionally, the terminal is instructed to report downlink positioning measurement results associated with different Rx TEGs.

[0298] That is, the Rx TEG sweeping indication also includes an instruction for the terminal to report downlink positioning measurement results associated with different Rx TEGs.

[0299] Optionally, when the terminal cannot perform Rx TEG sweeping or report measurement results according to the network device's indication, the terminal sends a reason for being unable to perform Rx TEG sweeping according to the network device's indication, or sends a reason for being unable to report downlink positioning measurement results.

[0300] For example, the terminal reports a measurement result associated with a certain Rx TEG that is lower than a certain threshold.

[0301] Optionally, the indication for the terminal to measure the downlink positioning reference signal resource once in the Rx TEG sweeping manner across M periods also includes at least one of the following:

[0302] Indicating the number of Rx TEGs in the total Rx TEG sweeping;

[0303] Indicating the number of Rx TEGs in the Rx TEG sweeping in each downlink positioning reference signal instance.

[0304] Wherein, a downlink positioning reference signal instance, that is, a certain period of downlink positioning reference signal.

[0305] Optionally, M can be an Rx TEG sweeping factor, and the Rx TEG sweeping factor includes the number of downlink positioning reference signal instances that can be used or at most used by the terminal to complete one Rx TEG sweeping.

[0306] In some optional embodiments, the time error group indication method further includes:

[0307] In a case where the terminal has indicated N second TEGs and / or measurement results of the N second TEGs and / or a plurality of reception beam indexes associated with the first downlink positioning reference signal resource, the terminal receives sixth indication signaling sent by the network side device, the sixth indication signaling being used to indicate that the terminal takes the first downlink positioning reference signal resource as a reference resource of a second downlink positioning reference signal resource.

[0308] The terminal receives a second downlink positioning reference signal resource using the N second TEGs or the plurality of reception beam indexes associated with the first downlink positioning reference signal resource.

[0309] It can be understood that, for a certain PRS resource, the UE has indicated N Rx TEGs and / or measurement results of the N Rx TEGs and / or a plurality of Rx beam indexes associated with the PRS resource, and the network side device can further indicate the PRS resource as a “Rx TEG reference resource” of another PRS resource. When the UE receives the indication, the UE receives the other PRS resource using the same reception mode, that is, using the same N Rx TEGs or using the same plurality of Rx beams to receive the PRS resource.

[0310] In some optional embodiments, the first information includes a second association relationship, and the terminal indicates the network side device that the first information includes:

[0311] In a case where the downlink positioning measurement result contains a terminal reception sending time difference UE Rx-Tx time difference, the terminal performs one of the following:

[0312] Indicating an association relationship between the downlink positioning measurement result and an Rx TEG and a Tx TEG;

[0313] Indicating an association relationship between the downlink positioning measurement result and an Rx-Tx TEG;

[0314] Indicating an association relationship between the downlink positioning measurement result and an Rx TEG.

[0315] Optionally, the association relationship between the downlink positioning measurement result and the Rx TEG refers to an Rx TEG associated with the UE when the UE receives a downlink positioning reference signal;

[0316] Optionally, the specific association relationship between the downlink positioning measurement result and the Rx TEG can refer to the association relationship between the uplink positioning reference signal and the Tx TEG in the foregoing embodiments, and contains related information of a downlink positioning reference signal identifier.

[0317] Optionally, the association between the downlink positioning measurement result and the Tx TEG refers to: when the UE determines the Rx-Tx time difference value, the Tx TEG associated with the uplink subframe (starting point) corresponding to the transmission time Tx time (TUE-TX measurement) of the Tx TEG, or the Tx TEG associated with the Tx time, or the Tx TEG associated with the reference point corresponding to the Tx time.

[0318] In an embodiment, in one RxTx TEG, the UE can indicate at least one group of {PRS resources, SRS resources}, and the at least one group is located in the same RxTx TEG or shares the same RxTx TEG ID. Among them, the PRS resources and the SRS resources in different groups are not located in the same RxTx TEG. Among them, the PRS resources and the Rx-Tx time difference measurement are used to determine the Rx time; the SRS resources and the Rx-Tx time difference measurement are used to determine the Tx time.

[0319] Optionally, the PRS resources can be indicated by at least one of the TRP ID (dl-PRS-ID in the protocol), the PRS resource set ID, and the PRS resource ID.

[0320] Optionally, the SRS resources can be indicated by at least one of the SRS resource set ID, the SRS resource ID, the serving cell ID or the carrier ID, the BWP ID, the band indicator, the time stamp corresponding to the SRS instance, the SRS instance ID, the carrier where the SRS is located, and the frequency domain location information of the BWP.

[0321] Among them, the frequency domain location information includes but is not limited to: the starting position, the bandwidth, the SCS, the point A, etc. of the carrier and / or the BWP. The frequency domain location information can also be replaced by other information that can identify the carrier and / or the BWP where the SRS is located.

[0322] 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.

[0323] Optionally, when the terminal indicates the correlation between the downlink positioning measurement results and the second TEG, it also includes:

[0324] The terminal indicates whether the time error of the downlink positioning measurement results has been compensated or not.

[0325] 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).

[0326] 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.

[0327] Optionally, the UE indicates the confidence of the compensation.

[0328] Optionally, before the terminal indicates the first information to the network-side device, it further includes:

[0329] 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.

[0330] 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.

[0331] 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.

[0332] Optionally, before the terminal indicates the first information to the network-side device, it further includes:

[0333] Receiving eighth indication signaling sent by the network-side device, the eighth indication signaling being used for indicating a time difference between terminal calculation and / or reporting a second TEG and / or compensating for an error of the second TEG in downlink positioning measurement results.

[0334] Optionally, before the UE indicates the association between the measurement results and / or SRS and the TEG, the network device indicates whether the UE can calculate and / or report a time difference between Rx TEGs and / or compensate for an error of the Rx TEG in the measurement results.

[0335] Optionally, the method further comprises:

[0336] The terminal reports terminal capability information to the network-side device.

[0337] Here, the network-side device can be a location server or a base station, including a serving gNB or a neighboring gNB.

[0338] Optionally, the terminal capability information comprises one of the following:

[0339] Calibration capability information;

[0340] Rx TEG capability information;

[0341] Tx TEG capability information;

[0342] RxTx TEG capability information.

[0343] Optionally, the calibration capability information comprises at least one of the following:

[0344] The terminal does not support calibration of Rx timing error, Tx timing error and RxTx timing error;

[0345] The terminal supports Rx timing error calibration;

[0346] The terminal supports Tx timing error calibration;

[0347] The terminal supports RxTx timing error calibration.

[0348] Wherein, the time error “timing error” can also be replaced by “panel”.

[0349] Optionally, the UE does not support calibration of Rx / Tx timing error of any panel;

[0350] Optionally, the UE supports single-panel RxTx timing error calibration: the UE is capable of calibrating the receive and transmit RTT errors (i.e., Rx timing error + Tx timing error) for the same panel, or limiting the receive and transmit RTT errors for the panel to a range.

[0351] For both Rx and Tx in panel 1, or both Rx and Tx in panel 2, the UE can be able to guarantee the same RxTx TEG.

[0352] For example, a combination of 2Rx panels and 2Tx panels, it can only be necessary to associate 3 RxTx TEGs, rather than 4 sets of {Rx TEG, Tx TEG}.

[0353] The UE supports single-panel Rx calibration.

[0354] The UE supports single-panel Tx calibration.

[0355] The UE supports single-panel Rx calibration, and Tx calibration for the panel.

[0356] Optionally, the UE supports calibration of the RxTx timing error for the same panel. For example, receiving a signal with a certain panel, and then transmitting a signal with the same panel, the UE supports calibration of the RxTx timing error for the same panel.

[0357] Optionally, the UE supports calibration of the RxTx timing error across panels. For example, receiving a signal with a certain panel, and then transmitting a signal with another panel, the UE supports calibration of the RxTx timing error across panels.

[0358] Optionally, the Rx TEG capability information includes at least one of the following:

[0359] The number of Rx TEGs supported by the terminal;

[0360] The number of Rx TEGs that can be activated or have been activated by the terminal;

[0361] The maximum number of Rx TEGs associated with the positioning measurement results of one downlink positioning reference signal resource or one downlink positioning reference signal resource at the same time.

[0362] Optionally, TEG can be replaced by "panel". How many Rx TEGs can be associated with one PRS resource at the same time can be understood as: how many Rx panels can be used to receive one PRS resource at the same time.

[0363] Optionally, the Tx TEG capability information includes at least one of the following:

[0364] The number of Tx TEGs supported by the terminal;

[0365] The number of Tx TEGs that can be activated or have been activated by the terminal;

[0366] The number of Tx TEGs associated with the uplink positioning reference signal resource sent by the terminal.

[0367] Optionally, the number of Tx TEGs associated with the uplink positioning reference signal resource sent by the terminal can also be expressed as how many Tx TEGs the terminal can associate at the same time to send the uplink positioning reference signal resource.

[0368] Wherein, how many Tx TEGs the terminal can associate at the same time to send the uplink positioning reference signal resource, such as SRS resource, can also be expressed as how many Tx panels the UE can use at the same time to send the uplink positioning reference signal resource.

[0369] Optionally, the RxTx TEG capability information includes at least one of the following:

[0370] The number of RxTx TEGs supported by the terminal;

[0371] The number of RxTx TEGs that can be activated or have been activated by the terminal.

[0372] Optionally, when the terminal performs downlink positioning reference signal measurement, it includes at least one of the following behaviors:

[0373] The UE does not expect one measurement instance to associate multiple Rx TEGs. That is, when the UE determines a measurement result (such as RSTD or Rx-Tx difference), it can only jointly process the measurement result associated with one Rx TEG.

[0374] The UE does not expect one measurement instance to associate multiple Tx TEGs.

[0375] When the UE does not expect PRS repetition, it associates multiple Tx TEGs.

[0376] 1 measurement instance contains multiple PRS resource set instances. Generally, 1 measurement instance determines one measurement result (e.g. when determining one RSTD result). When determining the result, the UE will jointly process 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 result of each PRS resource set instance is associated with different Rx TEGs, the final joint calculation result will have errors. Therefore, we propose a UE behavior here, that is, the multiple PRS resource set instances jointly processed by the UE when determining the measurement result are associated with the same Rx TEG. Similarly, the same Tx TEG is also associated.

[0377] Optionally, when the terminal transmits the uplink positioning reference signal, the terminal is not allowed to associate multiple Tx TEGs at the SRS repetition.

[0378] Figure 6 Flowchart two of the time error group indication method provided by the embodiments of the present application. The method is applied to a network side device, which is a base station. As shown in the figure, the method comprises the following steps: Figure 6

[0379] Step 600, the base station indicates third information to the location server, the third information is used to assist the location server to perform positioning calculation;

[0380] Among them, the third information includes at least one of the following:

[0381] The third association relationship is used to indicate the association relationship between the downlink positioning reference signal and the third time error group TEG;

[0382] The fourth association relationship is used to indicate the association relationship between the uplink positioning measurement result and the fourth TEG;

[0383] The uplink positioning measurement result.

[0384] Optionally, the base station indicates the association relationship between the downlink positioning reference signal (PRS is taken as an example) and the third TEG, the association relationship between the uplink positioning measurement result and the fourth TEG, and / or the uplink positioning measurement result to the location server (under a certain TRP), to assist the location server to perform positioning calculation.

[0385] ​The association relationship can be represented by an associated TEG identifier ID, or the downlink positioning reference signals or uplink positioning measurement results of the same TEG are grouped, or represented by other manners.

[0386] The downlink positioning reference signal can be a PRS or other signals available for downlink positioning.

[0387] The uplink positioning measurement result is obtained by measuring the uplink positioning reference signal sent by the terminal.

[0388] The uplink positioning reference signal can be a SRS or other signals available for uplink positioning.

[0389] The uplink positioning measurement result includes but is not limited to at least one of the following: UL RTOA (Uplink, Relative Time of Arrival), gNB Rx-Tx time difference measurement result, and other types of uplink measurement results.

[0390] In the embodiments of the present application, the third TEG includes at least one of the following: Tx TEG, RxTx TEG, i.e., TRP Tx TEG, TRP RxTx TEG.

[0391] Optionally, the third TEG is a time error group for the base station to send the downlink positioning reference signal.

[0392] The fourth TEG includes at least one of the following: Rx TEG, RxTx TEG, {Rx TEG, Tx TEG}, i.e., TRP Rx TEG, TRP RxTx TEG, {TRP Rx TEG, TRP Tx TEG}.

[0393] Optionally, the fourth TEG is a time error group for the base station to receive the uplink positioning reference signal.

[0394] And / or,

[0395] In step 601, the base station indicates the 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 has an association relationship with the antenna port of the transmission and reception point TRP.

[0396] The understanding of the second information can refer to the foregoing embodiments, which will not be described here.

[0397] In the embodiments of the present application, by indicating the third information to the location server and / or indicating the second information to the terminal, the location server can be assisted to perform positioning calculation, thereby reducing or eliminating the influence of the time error group on the positioning accuracy and improving the positioning accuracy.

[0398] Optionally, the third information comprises uplink positioning measurement result, and the base station further indicates the fourth information to the location server before indicating the third information.

[0399] Obtain the first association relationship indicated by the terminal or the location server, the first association relationship being used to indicate the association relationship between the uplink positioning reference signal and the first TEG.

[0400] Optionally, before reporting the uplink positioning measurement result, the gNB receives an indication from the location server or the UE, the indication being used to indicate the association relationship between the uplink positioning reference signal and the first TEG.

[0401] Optionally, the first association relationship is the association relationship between the SRS and the UE Tx TEG.

[0402] In an embodiment, the relationship between the SRS and the Tx TEG is determined according to the sequence and / or mapping mode associated with the SRS Tx TEG.

[0403] In an embodiment, the first association relationship is directly received from the explicit indication of the UE.

[0404] In an embodiment, the UE explicitly indicates the first association relationship to the location server, and the location server sends the first association relationship to the gNB.

[0405] Optionally, the method further comprises:

[0406] The base station indicates the fourth information to the location server.

[0407] The fourth information comprises at least one of the following:

[0408] The time difference between the first TEGs;

[0409] The reliability or quality of the time difference between the first TEGs;

[0410] The method for obtaining the first TEG;

[0411] The TEG identifier associated with the first TEG.

[0412] Optionally, the base station indicates the time difference between the first TEGs to the location server at the same time when indicating the third information to the location server, the first TEG being the time error group of the terminal sending the uplink positioning reference signal.

[0413] Further, the base station indicates the reliability or quality of the time difference between the first TEGs to the location server.

[0414] Further, the base station indicates the method for obtaining the first TEG to the location server, such as calculating and compensating according to different measurement results associated with multiple TEGs.

[0415] Optionally, the base station indicates the TEG identity associated with the first TEG to the location server. For example, the reference Tx TEG identity is indicated, and other Tx TEG identities are indicated.

[0416] Optionally, the base station gNB calculates the time difference between the UE Tx TEGs by reference to the UE Tx TEG identity.

[0417] Optionally, the reference Tx TEG can be agreed by protocol, indicated by the location server, or selected by the gNB itself.

[0418] Optionally, the third information includes the uplink positioning measurement result, and before the base station indicates the third information to the location server, it further includes:

[0419] Receiving the ninth indication signaling sent by the location server, the ninth indication signaling is used to indicate that the base station calculates and / or reports the time difference value between the first TEGs, and / or compensates the error of the first TEG in the uplink positioning measurement result.

[0420] Optionally, before the gNB reports the measurement result, an indication from the location server is received, indicating whether the gNB can calculate and / or report the time difference value between the Tx TEGs and / or compensate the error of the Tx TEG in the measurement result.

[0421] Optionally, the base station indicates the third information to the location server, including:

[0422] In the case where the first association relationship is indicated by sequence and / or mapping, the uplink positioning measurement result is reported, and the first association relationship is included in the uplink positioning measurement result.

[0423] Optionally, if the first association relationship is indicated by sequence and / or mapping, the base station includes the first association relationship in the uplink positioning measurement result when reporting the uplink positioning measurement result.

[0424] In an implementation, before performing SRS measurement, the gNB can receive information from the location server or the UE, indicating the number of Tx TEGs associated with the SRS (or the number of Tx TEGs that the UE can support or associate). According to the sequence and / or mapping mode agreed by the protocol or indicated by the network, the gNB obtains the sequence and / or mapping position of the SRS associated with different UE Tx TEGs, so as to measure the SRS under each SRS instance. Then the gNB reports the SRS measurement result to the location server, and the measurement result includes the association relationship between the SRS and the UE Tx TEG.

[0425] Optionally, the method further comprises: the base station indicating, to the location server, an association relationship between the uplink positioning measurement result and the fourth TEG, and / or a difference value of the fourth TEG time error, and / or the uplink positioning measurement result compensated for the fourth TEG time error. The behavior of the base station can be determined by at least one of a protocol agreement, an indication of the location server, and a decision of the base station itself.

[0426] Optionally, the method further comprises: when the base station reports the uplink positioning measurement result to the location server, the base station further reports identification information of an uplink positioning reference signal associated with the uplink positioning measurement result.

[0427] The identification information of the uplink positioning reference signal comprises at least one of:

[0428] an uplink positioning reference signal resource set identification ID;

[0429] an uplink positioning reference signal resource ID;

[0430] a serving cell ID or a carrier ID;

[0431] a bandwidth part BWP ID;

[0432] a bandwidth indicator;

[0433] a timestamp corresponding to an uplink positioning reference signal instance;

[0434] an uplink positioning reference signal instance identification;

[0435] frequency domain location information of a carrier and / or a BWP where the uplink positioning reference signal is located.

[0436] Optionally, the method further comprises:

[0437] the base station receiving terminal capability information sent by the terminal or the location server;

[0438] The terminal capability information comprises one of:

[0439] calibration capability information;

[0440] Rx TEG capability information;

[0441] Tx TEG capability information;

[0442] RxTx TEG capability information.

[0443] The understanding of the calibration capability information, the Rx TEG capability information, the Tx TEG capability information, and the RxTx TEG capability information can refer to the foregoing embodiments, which will not be described here.

[0444] In some optional embodiments, the base station can also perform the positioning calculation, and the base station can directly obtain the first information indicated by the terminal, or the terminal indicates the first information to the location server, and the location server sends the first information to the base station.

[0445] Optionally, the method further comprises:

[0446] obtaining the first information indicated by the terminal or the location server; wherein the first information is used to assist the base station to perform the positioning calculation;

[0447] wherein the first information comprises at least one of:

[0448] a first association relationship, the first association relationship being used to indicate an association relationship between the uplink positioning reference signal and a first time error group (TEG);

[0449] a second association relationship, the second association relationship being used to indicate an association relationship between the downlink positioning measurement result and a second TEG.

[0450] Optionally, before the obtaining the first information indicated by the terminal, the method further comprises:

[0451] sending, by the base station, a first request message to the terminal, the first request message being used to request the terminal to indicate the first information.

[0452] Optionally, the first information comprises: a first association relationship, and the obtaining the first information indicated by the terminal or the location server comprises at least one of:

[0453] obtaining the first association relationship through a sequence of the uplink positioning reference signal;

[0454] obtaining the first association relationship through a mapping mode of the uplink positioning reference signal;

[0455] obtaining the first association relationship through an event triggering mode;

[0456] non-periodically obtaining the first association relationship;

[0457] periodically obtaining the first association relationship.

[0458] Optionally, before the obtaining the first association relationship through the sequence of the uplink positioning reference signal or the mapping mode of the uplink positioning reference signal, the method further comprises:

[0459] sending, by the base station, a first indication signaling to the terminal, the first indication signaling being used to indicate the terminal to start the function of indicating the first association relationship through the sequence and / or the mapping mode of the uplink positioning reference signal.

[0460] Optionally, the obtaining the first association relationship through the event triggering mode comprises:

[0461] receiving TEG indication signaling sent by the terminal, the TEG indication signaling being used to indicate the first association relationship or that the first association relationship has changed.

[0462] Optionally, before receiving the TEG indication signaling sent by the terminal, the method further comprises:

[0463] receiving second indication signaling at least once, the second indication signaling being used to indicate the first association relationship.

[0464] Optionally, the aperiodic acquisition of the first association relationship comprises:

[0465] receiving third indication signaling sent by the terminal, the third indication signaling being used to indicate an association relationship between an uplink positioning reference signal and a first TEG within a first time window before a first time t;

[0466] The first time window comprises P latest uplink positioning reference signal instances before the first time t, and P is a positive integer, and P is obtained in at least one of the following manners: protocol agreement, network indication, and terminal selection.

[0467] Optionally, the periodic acquisition of the first association relationship comprises at least one of the following:

[0468] receiving fourth indication signaling sent by the terminal according to a period T and / or a period offset, the fourth indication signaling being used to indicate an association relationship between an uplink positioning reference signal and a TEG in an adjacent period interval time;

[0469] acquiring the first association relationship in a measurement report of a terminal receiving a transmission time difference UE Rx-Tx time difference.

[0470] Optionally, the first information comprises a second association relationship, and the first information indicated by the terminal or the location server comprises:

[0471] in a case where downlink positioning measurement results received by the base station comprise downlink reference signal time difference DL-RSTD or reception-transmission time difference Rx-Tx time difference or other types of downlink measurement results, for a target positioning measurement result, the base station acquires an association relationship between the target positioning measurement result and N second TEGs;

[0472] The target positioning measurement result is a positioning measurement result obtained by the terminal performing measurement on a target downlink positioning reference signal resource, and N is a positive integer greater than or equal to 1, and N is obtained in at least one of the following manners: protocol agreement, network indication, and terminal selection.

[0473] Optionally, the base station obtains the association relationship between the target positioning measurement result and the N second TEGs, including at least one of the following:

[0474] The base station obtains the path associated with the N second TEGs indicated by the terminal;

[0475] The base station obtains the receive beam index associated with the N second TEGs indicated by the terminal;

[0476] The base station obtains that the N second TEGs indicated by the terminal are obtained by multiple receive beam sweeping or by simultaneously measuring the target downlink positioning reference signal resource;

[0477] The base station obtains the time stamp of the downlink positioning measurement result associated with the N second TEGs indicated by the terminal;

[0478] The base station obtains the time difference between the N second TEGs indicated by the terminal;

[0479] The base station obtains the position information associated inside the terminal of the N second TEGs indicated by the terminal;

[0480] The base station obtains the downlink positioning measurement result associated with the N second TEGs reported by the terminal;

[0481] The base station obtains the association relationship between the target positioning measurement result and the N second TEGs indicated in the downlink positioning measurement result corresponding to different time stamps.

[0482] Optionally, it further includes:

[0483] The base station sends a fifth indication signaling to the terminal, and the fifth indication signaling is used to instruct the terminal to measure the target downlink positioning reference signal resource in the Rx TEG sweeping manner.

[0484] Optionally, it further includes at least one of the following:

[0485] The base station does not indicate the spatial QCL information of the target downlink positioning reference signal resource;

[0486] The base station indicates that the target downlink positioning reference signal resource is repeated.

[0487] Optionally, the indication that the terminal measures the downlink positioning reference signal resource in the Rx TEG sweeping manner includes at least one of the following:

[0488] Indicate that the terminal measures the target downlink positioning reference signal resource once in the Rx TEG sweeping manner across M cycles, where M is a positive integer, and M is obtained in at least one of the following ways: protocol agreement, network indication, or terminal selection.

[0489] indicating the terminal to perform scanning in a partial Rx TEG, or indicating the terminal to perform scanning across partial Rx TEGs;

[0490] indicating the terminal to report downlink positioning measurement results associated with different Rx TEGs.

[0491] Optionally, the indication to the terminal to measure the downlink positioning reference signal resource once in an Rx TEG sweeping manner across M periods further comprises at least one of:

[0492] indicating the number of Rx TEGs in the total Rx TEG sweeping;

[0493] indicating the number of Rx TEGs in the Rx TEG sweeping in each downlink positioning reference signal instance.

[0494] Optionally, further comprising:

[0495] in a case where the terminal has indicated N second TEGs associated with the first downlink positioning reference signal resource and / or measurement results of the N second TEGs and / or a plurality of receive beam indexes, sending sixth indication signaling to the terminal;

[0496] wherein the sixth indication signaling is used to instruct the terminal to take the first downlink positioning reference signal resource as a reference resource of a second downlink positioning reference signal resource.

[0497] Optionally, the first information comprises a second association relationship, and the base station acquires the first information indicated by the terminal, comprising:

[0498] in a case where the downlink positioning measurement result received by the base station contains a terminal reception transmission time difference UE Rx-Tx time difference, the base station performs one of:

[0499] acquiring an association relationship between the downlink positioning measurement result and an Rx TEG and a Tx TEG;

[0500] acquiring an association relationship between the downlink positioning measurement result and an Rx-Tx TEG;

[0501] acquiring an association relationship between the downlink positioning measurement result and an Rx TEG.

[0502] Optionally, further comprising:

[0503] the base station receives information indicated by the terminal on whether a time error of the downlink positioning measurement result is compensated or not.

[0504] Optionally, further comprising:

[0505] The seventh indication signaling is sent to the terminal, and the seventh indication signaling is used to indicate the number of TEGs that can be associated when the terminal measures the downlink positioning reference signal or sends the uplink positioning reference signal.

[0506] Optionally, the method further comprises:

[0507] The eighth indication signaling is sent to the terminal, and the eighth indication signaling is used to indicate the terminal to calculate and / or report the time difference value between the second TEG and / or compensate for the error of the second TEG in the downlink positioning measurement result.

[0508] In the embodiments of the present application, the base station performs positioning calculation by acquiring the association relationship between the uplink positioning reference signal indicated by the terminal and the first TEG and / or the association relationship between the downlink positioning measurement result and the second TEG, which can reduce or eliminate the influence of the time error group on the positioning accuracy and improve the positioning accuracy.

[0509] Figure 7 A flowchart of a time error group indication method provided by the embodiments of the present application is shown in Figure 3, which is applied to a network side device, such as a location server. Figure 7 The method comprises the following steps:

[0510] In step 700, the location server acquires the first information indicated by the terminal, and the first information is used to assist the location server or the base station to perform positioning calculation.

[0511] The first information comprises at least one of the following:

[0512] The first association relationship is used to indicate the association relationship between the uplink positioning reference signal and the first time error group TEG.

[0513] The second association relationship is used to indicate the association relationship between the downlink positioning measurement result and the second TEG.

[0514] It should be noted that in order to reduce or eliminate the influence of the Rx / Tx timing error on the positioning accuracy, in the embodiments of the present application, the location server acquires the association relationship between the uplink positioning reference signal indicated by the terminal and the first time error group TEG and / or the association relationship between the downlink positioning measurement result and the second TEG to assist itself to perform positioning calculation or assist the base station to perform positioning calculation.

[0515] The first TEG comprises at least one of the following: Tx TEG, RxTx TEG. That is, UE Tx TEG, UE RxTx TEG.

[0516] The second TEG comprises at least one of the following: an Rx TEG, an RxTx TEG, {Rx TEG, Tx TEG}, that is, a UE Rx TEG, a UE RxTx TEG, {UE Rx TEG, UE Tx TEG}.

[0517] The association relationship can be represented by an associated TEG identifier ID, or the uplink positioning reference signals or the downlink positioning measurement results of the same TEG are grouped, or represented in other manners.

[0518] The uplink positioning reference signal can be an SRS or other signals available for uplink positioning.

[0519] The downlink positioning measurement result is obtained by the terminal performing measurement on the received downlink positioning reference signal.

[0520] The downlink positioning reference signal can be a PRS or other signals available for downlink positioning.

[0521] The downlink positioning measurement result comprises at least one of the following: a downlink reference signal time difference (DL RSTD), a UE Rx-Tx time difference measurement result, and other types of downlink measurement results.

[0522] The other types of downlink measurement results can be (DL-RSRP), which is not limited in the present application.

[0523] In step 701, the location server indicates the second information to the terminal, wherein the second information is used to indicate the association relationship between the downlink positioning reference signal resource set and / or the downlink positioning reference signal resource and the antenna port of the transmission and reception point (TRP).

[0524] The understanding of the second information can refer to the foregoing embodiments, which will not be described here again.

[0525] In the embodiments of the present application, the network side device obtains the association relationship between the uplink positioning reference signal indicated by the terminal and the first time error group TEG and / or the association relationship between the downlink positioning measurement result and the second TEG, and / or indicates the second information to the terminal to assist in positioning calculation, thereby reducing or eliminating the influence of the time error group on the positioning accuracy and improving the positioning accuracy.

[0526] Optionally, before the location server obtains the first information indicated by the terminal, the method further comprises:

[0527] The location server sends a first request message to the terminal, and the first request message is used to request the terminal to indicate the first information.

[0528] Optionally, for a scenario with low positioning accuracy requirement, the network side device can require the terminal not to provide the first information.

[0529] The following further describes how the network side device acquires the first information indicated by the terminal.

[0530] Optionally, the first information comprises a first association relationship, and the position server acquires the first information indicated by the terminal by at least one of the following:

[0531] The first association relationship is acquired through a sequence of the uplink positioning reference signal;

[0532] The first association relationship is acquired through a mapping manner of the uplink positioning reference signal;

[0533] The first association relationship is acquired through an event triggering manner;

[0534] The first association relationship is acquired aperiodically;

[0535] The first association relationship is acquired periodically.

[0536] Optionally, the sequence of the uplink positioning reference signal is generated according to a cyclic shift corresponding to a first TEG associated with the uplink positioning reference signal, wherein different first TEGs correspond to different cyclic shifts. Therefore, the position server can acquire the first association relationship by analyzing the sequence of the uplink positioning reference signal.

[0537] Optionally, the association relationship between the uplink positioning reference signal and the first TEG is represented through a mapping manner of the uplink positioning reference signal. For example, for the same SRS resource, the Tx TEG changes between different periods, and the mapping of the same SRS resource on different periods will be different.

[0538] Optionally, the first association relationship is determined through a time-frequency position corresponding to the uplink positioning reference signal, wherein different first TEGs are distinguished through a frequency division multiplexing (FDM) manner. The FDM manner distinguishes different TEGs in relation to the number of Tx TEGs.

[0539] Optionally, before the first association relationship is acquired through the sequence of the uplink positioning reference signal or the mapping manner of the uplink positioning reference signal, the following further comprises:

[0540] The position server sends first indication signaling to the terminal, and the first indication signaling is used to instruct the terminal to turn on or enable the function of indicating the first association relationship by the sequence and / or mapping mode of the uplink positioning reference signal.

[0541] Optionally, the position server can indicate to the terminal through the base station whether to turn on the function of representing the association relationship between the SRS and the TEG by the sequence and / or mapping mode, such as by a switch indication.

[0542] In an implementation, when the serving gNB receives a request from the position server, such as a request to obtain the association relationship between the SRS and the Tx TEG (in real time), the serving gNB can instruct the UE to turn on the switch. The UE indicates the association relationship between the SRS and the Tx TEG by the sequence and / or mapping mode according to the instruction. For example, in a scenario where the UE only supports / associates one Tx TEG or in a scenario where the requirement for positioning accuracy is not high, the switch is set to "off" or a default instruction is given.

[0543] Optionally, the first association relationship is obtained by an event-triggered manner, including:

[0544] The TEG indication signaling is received, and the TEG indication signaling is used to indicate the first association relationship or that the first association relationship has changed.

[0545] Optionally, the content of the TEG indication signaling includes one of the following:

[0546] It is indicated that the association relationship between the uplink positioning reference signal of the nearest uplink positioning reference signal instance before the TEG indication signaling and the first TEG has changed, and the TEG indication signaling is valid until the nearest second uplink positioning reference signal instance before the next TEG indication signaling.

[0547] It is indicated that the association relationship between the uplink positioning reference signal of the nearest uplink positioning reference signal instance after the TEG indication signaling and the first TEG has changed, and the TEG indication signaling is valid until the nearest uplink positioning reference signal instance before the next TEG indication signaling.

[0548] The association relationship has changed means that the association relationship between the uplink positioning reference signal of the period and the first TEG has changed compared with the association relationship between the uplink positioning reference signal of the previous period and the first TEG.

[0549] It can be understood that "the association relationship between the uplink positioning reference signal of the last uplink positioning reference signal instance before the TEG indication signaling and the first TEG has changed" can also be expressed as "the association relationship between the uplink positioning reference signal of the last uplink positioning reference signal instance before the TEG indication signaling and the first TEG".

[0550] "the association relationship between the uplink positioning reference signal of the last uplink positioning reference signal instance after the TEG indication signaling and the first TEG has changed" can also be expressed as "the association relationship between the uplink positioning reference signal of the last uplink positioning reference signal instance after the TEG indication signaling and the first TEG".

[0551] In addition to indicating the association relationship or the change of the association relationship, the TEG indication signaling also indicates the duration of the effective time. The association relationship between the uplink positioning reference signal in the duration of the effective time and the first TEG is unchanged.

[0552] For the understanding of the relationship between the uplink reference signal of a certain uplink positioning reference signal instance 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; it can also be the association relationship between several SRS resources or SRS resource sets and the first TEG.

[0553] Optionally, before receiving the TEG indication signaling sent by the terminal, the method further comprises:

[0554] The location server receives the second indication signaling at least once, and the second indication signaling is used to indicate the first association relationship.

[0555] Optionally, before the event triggering indication, the UE reports the association relationship between the SRS and the Tx TEG at least once, such as reporting the association relationship in the initial stage of SRS transmission (such as the first SRS instance) or the association relationship of a certain SRS instance (indicated by the network / protocol agreement / selected by the UE). Correspondingly, the location server receives the second indication signaling at least once, and the second indication signaling is used to indicate the first association relationship.

[0556] Optionally, the non-periodic acquisition of the first association relationship comprises:

[0557] receive third indication signaling sent by the terminal, the third indication signaling being used to indicate an association relationship between an uplink positioning reference signal and the first TEG in a first time window before a first time t;

[0558] The first time window includes P uplink positioning reference signal instances closest to the first time t, and P is a positive integer and is obtained by at least one of the following manners: protocol agreement, network indication, and terminal selection.

[0559] Optionally, the first time t is a UE reporting time. The first time t is indicated by a network side device through downlink control information (DCI) signaling and an offset.

[0560] The DCI signaling is used to trigger transmission of an aperiodic uplink positioning reference signal.

[0561] Optionally, the periodic acquisition of the first association relationship includes at least one of the following:

[0562] receive fourth indication signaling sent by the terminal according to a period T and / or a period offset, the fourth indication signaling being used to indicate an association relationship between an uplink positioning reference signal and a TEG in an adjacent period interval time;

[0563] The first association relationship is acquired in a terminal receiving measurement reporting of a UE Rx-Tx time difference.

[0564] The period T and / or the period offset are obtained by at least one of the following manners: protocol agreement, network indication, and terminal selection.

[0565] The periodic indication is generally an indication sent by the terminal according to a network configured period and / or a period offset. Alternatively, the terminal first receives a network preconfigured period and / or an offset, then receives an activation indication (such as a MAC CE activation signaling) of the network, and activates the terminal to send the indication.

[0566] Optionally, the period T is related to a transmission period of the uplink positioning reference signal. For example, the period T is Q times of an SRS period, and Q is a positive integer.

[0567] Optionally, the period T is related to a period of reporting an uplink positioning measurement result by a base station gNB. For example, the period T is Q times of a period of reporting an SRS measurement result by the gNB, and Q is a positive integer.

[0568] Optionally, in the RTT positioning method or (or Multi-RTT positioning method), the UE periodically indicates the association relationship 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. Correspondingly, the location server obtains the first association relationship in the measurement report of the terminal receiving and sending time difference UE Rx-Tx time difference.

[0569] Optionally, the first information includes a second association relationship, and the location server obtains the first information indicated by the terminal.

[0570] In the case where the downlink positioning measurement result received by the location server includes the downlink reference signal time difference DL-RSTD or the receiving and sending time difference Rx-Tx time difference or other types of downlink measurement results, for the target positioning measurement result, the location server obtains the association relationship between the target positioning measurement result indicated by the terminal and the N second TEGs;

[0571] Wherein, the target positioning measurement result is the positioning measurement result obtained by the terminal measuring the target downlink positioning reference signal resource, N is a positive integer greater than or equal to 1, and N is obtained by at least one of protocol agreement, network indication and terminal selection.

[0572] It can be understood that the target positioning measurement result refers to the downlink positioning measurement result under a certain downlink positioning reference signal resource (for example, PRS resource).

[0573] The location server obtains the target positioning measurement result indicated by the terminal and the associated N second TEGs, N is a positive integer greater than or equal to 1, and N is obtained by at least one of protocol agreement, network indication and terminal selection.

[0574] In the 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 can be at least one of Rx TEG, RxTx TEG, and {Rx TEG, Tx TEG}.

[0575] It can be understood that in some embodiments, the second TEG is Rx TEG.

[0576] Optionally, the downlink positioning measurement result is related to N receiving time error groups Rx TEG, indicating that at the same time, the UE receives the same downlink positioning reference signal resource using multiple Rx panels;

[0577] Or, the same downlink positioning reference signal resource is repeatedly transmitted, the UE performs Rx beam sweeping, and the Rx panel switching occurs during the Rx beam sweeping.

[0578] Optionally, the position server obtains the association relationship between the target positioning measurement result and the N second TEGs, including at least one of the following:

[0579] The position server obtains the path associated with the N second TEGs indicated by the terminal.

[0580] Wherein, the path path can be first path and / or additional path. That is, the position server obtains the association relationship with the second TEG indicated by the terminal per path or per path-group.

[0581] Optionally, when N=1, the UE reports the second TEG associated with the first path. In other words, when N=1, the position server obtains the association relationship with the second TEG indicated by the terminal per PRS resource.

[0582] The position server obtains the receive beam index associated with the N second TEGs indicated by the terminal.

[0583] It can be understood that the position server obtains the receive beam index associated with the N second TEGs respectively indicated by the terminal, which means that the measurement result associated with a certain Rx TEG is also related to the Rx beam index.

[0584] Optionally, here the Rx beam index can not be an absolute Rx beam index, and can only be used to distinguish that the measurement result associated with the Rx TEG is obtained by different Rx beams.

[0585] Optionally, the N Rx TEGs are only associated with one Rx beam or are not associated with the Rx beam, and the default indication is used.

[0586] The position server obtains that the N second TEGs indicated by the terminal are obtained by multiple receive beam sweeping or are obtained by simultaneously measuring the target downlink positioning reference signal resource.

[0587] The position server obtains the time stamp of the downlink positioning measurement result associated with the N second TEGs indicated by the terminal.

[0588] Wherein, the me stamp can represent different periods of measurement, or different times of measurement in the same period.

[0589] The position server acquires a time difference between the N second TEGs indicated by the terminal;

[0590] The position server acquires position information of the N second TEGs indicated by the terminal inside the terminal;

[0591] The position information includes at least one of the following: distance or distance difference of the N Rx TEGs associated with the position inside the terminal, or difference of the panel positions corresponding to the N Rx TEGs.

[0592] The position server acquires downlink positioning measurement results associated with the N second TEGs reported by the terminal;

[0593] The position server acquires an association relationship between the target positioning measurement result and the N second TEGs indicated in the downlink positioning measurement results corresponding to different time stamps.

[0594] Optionally, further comprising:

[0595] The position server sends a fifth indication signaling to the terminal, which is used to instruct the terminal to measure the target downlink positioning reference signal resource in the Rx TEG sweeping mode.

[0596] Optionally, further comprising at least one of the following:

[0597] The position server does not indicate the spatial QCL information of the target downlink positioning reference signal resource;

[0598] The position server indicates that the target downlink positioning reference signal resource is repeated.

[0599] Optionally, when the network side device indicates "Rx TEG sweeping", the QCL information (such as QCL-D, i.e. spatial QCL relationship) of the target downlink positioning reference signal resource cannot be indicated at the same time.

[0600] Optionally, when the network side device indicates "Rx TEG sweeping", the target downlink positioning reference signal resource must be indicated to be repeated. Further, the number of repetitions is required to be greater than a certain threshold.

[0601] Optionally, the indication of the terminal to measure the downlink positioning reference signal resource in the Rx TEG sweeping mode includes at least one of the following:

[0602] The terminal is instructed to measure the target downlink positioning reference signal resource once in a Rx TEG sweeping manner across M periods, where M is a positive integer, and M is obtained by at least one of the following: protocol agreement, network indication, or terminal selection.

[0603] Optionally, the terminal is instructed to measure the target downlink positioning reference signal resource once in a Rx TEG sweeping manner across different downlink positioning reference signal instances (i.e., downlink positioning reference signal periods).

[0604] For example, for the same PRS resource (set), a measurement is generated once per period, and beam sweeping can be performed across multiple periods.

[0605] The terminal is instructed to perform scanning on a portion of Rx TEGs, or to perform scanning across a portion of Rx TEGs.

[0606] That is, the Rx TEG sweeping indication can limit sweeping to only a few Rx TEGs, or indicate which Rx TEGs the UE should sweep across.

[0607] The terminal is instructed to report downlink positioning measurement results associated with different Rx TEGs.

[0608] That is, the Rx TEG sweeping indication also includes an instruction for the terminal to report downlink positioning measurement results associated with different Rx TEGs.

[0609] Optionally, the location server receives reasons why the terminal cannot perform Rx TEG sweeping according to the network device's indication, or reasons why the terminal cannot report downlink positioning measurement results.

[0610] Optionally, the instruction for the terminal to measure the downlink positioning reference signal resource once in a Rx TEG sweeping manner across M periods further includes at least one of the following:

[0611] Indicating the number of Rx TEGs in the total Rx TEG sweeping.

[0612] Indicating the number of Rx TEGs in the Rx TEG sweeping for each downlink positioning reference signal instance.

[0613] A downlink positioning reference signal instance refers to a period of a downlink positioning reference signal.

[0614] Optionally, M can be an Rx TEG sweeping factor, which includes the number of downlink positioning reference signal instances that can be used or at most used by the terminal to complete one Rx TEG sweeping.

[0615] Optionally, further comprising:

[0616] In a case where the terminal has indicated N second TEGs associated with the first downlink positioning reference signal resource and / or measurement results of the N second TEGs and / or a plurality of receive beam indexes, sending sixth indication signaling to the terminal;

[0617] The sixth indication signaling is used to instruct the terminal to take the first downlink positioning reference signal resource as a reference resource of a second downlink positioning reference signal resource.

[0618] It can be understood that, for a certain PRS resource, the UE has indicated N Rx TEGs and / or measurement results of the N Rx TEGs and / or a plurality of Rx beam indexes associated with the PRS resource, and the location server can further instruct the PRS resource as an “Rx TEG reference resource” of another PRS resource. When the UE receives the instruction, the same receiving mode is used to receive the other PRS resource, that is, the same N Rx TEGs are used, or the same plurality of Rx beams are used to receive the PRS resource.

[0619] Optionally, the first information includes a second association relationship, and the location server obtains the first information indicated by the terminal, including:

[0620] In a case where the downlink positioning measurement result received by the location server contains a terminal reception-sending time difference UE Rx-Tx time difference, the base station performs one of the following:

[0621] Obtain an association relationship between the downlink positioning measurement result and an Rx TEG and a Tx TEG;

[0622] Obtain an association relationship between the downlink positioning measurement result and an Rx-Tx TEG;

[0623] Obtain an association relationship between the downlink positioning measurement result and an Rx TEG.

[0624] Optionally, the association relationship between the downlink positioning measurement result and the Rx TEG refers to an Rx TEG associated with the UE when receiving the downlink positioning reference signal;

[0625] Optionally, the specific association between the downlink positioning measurement result and the Rx TEG can refer to the association between the uplink positioning reference signal and the Tx TEG in the foregoing embodiments, and includes related information of the downlink positioning reference signal identifier.

[0626] Optionally, the association between the downlink positioning measurement result and the Tx TEG refers to: when the UE determines the Rx-Tx time difference value, the Tx time (TUE-TX measurement) corresponding to the uplink subframe (start point) associated Tx TEG, or the Tx TEG associated with the Tx time, or the Tx TEG associated with the reference point corresponding to the Tx time.

[0627] In an embodiment, in one RxTx TEG, the UE can indicate at least one group of {PRS resources, SRS resources}, and the at least one group is located in the same RxTx TEG or shares the same RxTx TEG ID. Wherein, the PRS resources and the SRS resources in different groups are not located in the same RxTx TEG. Wherein, the PRS resources and the Rx-Tx time difference measurement are used to determine the Rx time; the SRS resources and the Rx-Tx time difference measurement are used to determine the Tx time.

[0628] Optionally, the PRS resources can be indicated by at least one of the TRP ID (protocol dl-PRS-ID), the PRS resource set ID, and the PRS resource ID.

[0629] Optionally, the SRS resources can be indicated by at least one of the SRS resource set ID, the SRS resource ID, the serving cell ID or the carrier ID, the BWP ID, the band indicator, the time stamp corresponding to the SRS instance, the SRS instance identifier, the carrier where the SRS is located, and the frequency domain location information of the BWP.

[0630] The frequency domain location information includes, but is not limited to, the starting position of the carrier and / or BWP, the bandwidth, the SCS, the point A, and the like. The frequency domain location information can also be replaced by other information that can identify the carrier and / or BWP where the SRS is located.

[0631] Optionally, the association between the UE-indicated downlink positioning measurement result and the type of the second TEG can be indicated by the network, agreed by the protocol, or selected by the UE. The second TEG type includes at least one of the following: Rx TEG, Tx TEG, RxTx TEG, and Rx TEG.

[0632] Optionally, the method further comprises:

[0633] The location server receives information from the terminal indicating whether the timing error of the downlink positioning measurement result is compensated or not.

[0634] Optionally, when the UE indicates that the timing error of the downlink positioning measurement result is compensated, the UE indicates that the relationship between the measurement result and the TEG is none, or the UE only indicates the association between the measurement result and one TEG (which can be a default TEG agreed by the protocol, indicated by the network, or selected by the UE). Correspondingly, the location server receives the relevant information indicated by the UE.

[0635] Optionally, the location server receives the method of compensating the timing error indicated by the terminal, such as internal compensation, or the UE calculates and compensates according to different measurement results associated with multiple TEGs.

[0636] Optionally, the location server receives the confidence of the compensation indicated by the terminal.

[0637] Optionally, the method further comprises:

[0638] The seventh indication signaling is sent to the terminal, and the seventh indication signaling is used to indicate the number of TEGs that can be associated when the terminal measures the downlink positioning reference signal or transmits the uplink positioning reference signal.

[0639] Optionally, before receiving the first association relationship and / or the second association relationship indicated by the UE, the 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 transmits the SRS.

[0640] For example, the UE supports 4 Tx TEGs, but the location server indicates that the UE can only associate (or activate) 2 Tx TEGs when sending SRS. For example, the UE supports Tx TEG0, Tx TEG1, Tx TEG2, Tx TEG3, and the location server indicates that the UE can only associate 2 Tx TEGs (e.g., Tx TEG0 and Tx TEG2). Then the UE can only associate these 2 Tx TEGs when sending SRS, instead of the 4 supported Tx TEGs.

[0641] Optionally, the method further comprises:

[0642] Optionally, the method further comprises:

[0643] Optionally, before receiving the first association relationship and / or the second association relationship indicated by the UE, the location server sends the 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 the error of the second TEGs in the measurement results.

[0644] Optionally, the method further comprises:

[0645] Optionally, the method further comprises:

[0646] Optionally, the terminal capability information comprises one of the following:

[0647] Optionally, the method further comprises:

[0648] Optionally, the method further comprises:

[0649] Optionally, the method further comprises:

[0650] Optionally, the method further comprises:

[0651] Optionally, the location server receives the terminal capability information reported by the terminal.

[0652] Optionally, the calibration capability information comprises at least one of the following:

[0653] Optionally, the terminal does not support calibration of Rx timing error, Tx timing error, and RxTx timing error.

[0654] Optionally, the terminal supports calibration of Rx timing error.

[0655] Optionally, the terminal supports calibration of Tx timing error.

[0656] The terminal supports calibration of RxTx timing error.

[0657] Wherein, the timing error can also be replaced by panel.

[0658] Optionally, the UE does not support calibration of Rx / Tx timing error of any panel;

[0659] Optionally, the UE supports RxTx timing delay calibration of a single panel: the UE has the capability to calibrate the transmission-reception RTT error of the same panel, or to limit the transmission-reception RTT error of the panel to a range.

[0660] For Rx and Tx in panel 1, or Rx and Tx in panel 2, the UE can guarantee the same RxTx TEG.

[0661] For example, the combination of 2Rx panel and 2Tx panel, at this time, it can only be necessary to associate 3 RxTx TEGs, rather than 4 groups of {RxTEG, Tx TEG}.

[0662] The UE supports Rx calibration of a single panel;

[0663] The UE supports Tx calibration of a single panel;

[0664] The UE supports Rx calibration of a single panel, and Tx calibration of the panel.

[0665] Optionally, the UE supports calibration of RxTx timing error of the same panel. For example, receiving a signal by a certain panel, and then transmitting a signal by the same panel, supporting calibration of RxTx timing error of the same panel.

[0666] Optionally, the UE supports calibration of RxTx timing error across panels. For example, receiving a signal by a certain panel, and then transmitting a signal by another panel, supporting calibration of RxTx timing error across panels.

[0667] Optionally, the Rx TEG capability information includes at least one of the following:

[0668] The number of Rx TEGs supported by the terminal;

[0669] The number of Rx TEGs activated or activated by the terminal;

[0670] The maximum number of Rx TEGs associated with one downlink positioning reference signal resource or the positioning measurement result of one downlink positioning reference signal resource at the same time.

[0671] Optionally, TEGs can be replaced by "panels". The maximum number of Rx TEGs associated with one PRS resource at the same time can be understood as: the maximum number of Rx panels that can be used to receive one PRS resource at the same time.

[0672] Optionally, the Tx TEG capability information includes at least one of the following:

[0673] The number of Tx TEGs supported by the terminal;

[0674] The number of Tx TEGs that can be activated or have been activated by the terminal;

[0675] The number of Tx TEGs associated with the uplink positioning reference signal resource sent by the terminal.

[0676] Optionally, the number of Tx TEGs associated with the uplink positioning reference signal resource sent by the terminal can also be expressed as the number of Tx TEGs that the terminal can simultaneously associate to send the uplink positioning reference signal resource.

[0677] The number of Tx TEGs that the terminal can simultaneously associate to send the uplink positioning reference signal resource, such as SRS resource, can also be expressed as the number of Tx panels that the UE can simultaneously use to send S uplink positioning reference signal resource.

[0678] Optionally, the RxTx TEG capability information includes at least one of the following:

[0679] The number of RxTx TEGs supported by the terminal;

[0680] The number of RxTx TEGs that can be activated or have been activated by the terminal.

[0681] Optionally, it further includes:

[0682] Obtaining third information indicated by the base station, the third information being used to assist the location server in positioning calculation;

[0683] The third information includes at least one of the following:

[0684] A third association relationship, the third association relationship being used to indicate the association relationship between the downlink positioning reference signal and the third time error group TEG;

[0685] A fourth association relationship, the fourth association relationship being used to indicate the association relationship between the uplink positioning measurement result and the fourth TEG;

[0686] uplink positioning measurement result.

[0687] Optionally, the location server receives the association relationship between the downlink positioning reference signal (e.g., PRS) and the third TEG, the uplink positioning measurement result and the fourth TEG, and / or the uplink positioning measurement result indicated by the base station, and performs positioning calculation.

[0688] The association relationship can be represented by the associated TEG identifier ID, or the downlink positioning reference signal or uplink positioning measurement result of the same TEG is grouped, or represented by other means.

[0689] The downlink positioning reference signal can be PRS or other signals available for downlink positioning.

[0690] The uplink positioning measurement result is obtained by the base station measuring the uplink positioning reference signal sent by the terminal.

[0691] The uplink positioning reference signal can be SRS or other signals available for uplink positioning.

[0692] The uplink positioning measurement result includes but is not limited to at least one of the following: UL RTOA, gNB Rx-Tx time difference measurement result, and other types of uplink measurement results.

[0693] In the embodiments of the present application, the third TEG includes at least one of the following: Tx TEG, RxTx TEG. That is, TRP Tx TEG, TRP RxTx TEG.

[0694] Optionally, the third TEG is a time error group for the base station to send the downlink positioning reference signal.

[0695] The fourth TEG includes at least one of the following: Rx TEG, RxTx TEG, {Rx TEG, Tx TEG}, that is, TRP Rx TEG, TRP RxTx TEG, {TRP Rx TEG, TRP Tx TEG}.

[0696] Optionally, the fourth TEG is a time error group for the base station to receive the uplink positioning reference signal.

[0697] Optionally, it further includes:

[0698] Indicating the first association relationship to the base station.

[0699] Optionally, the first association relationship is used to indicate the association relationship between the uplink positioning reference signal and the first TEG.

[0700] Optionally, it further includes:

[0701] obtaining fourth information indicated by the base station;

[0702] The fourth information includes at least one of the following:

[0703] a time difference value between the first TEGs;

[0704] a credibility or quality of the time difference value between the first TEGs;

[0705] a method for obtaining the first TEGs;

[0706] a TEG identifier associated with the first TEGs.

[0707] The base station indicates the third information to the location server, and also indicates the time difference value between the first TEGs to the location server. The first TEGs are time error groups of the terminal sending uplink positioning reference signals.

[0708] Further, the base station indicates the credibility or quality of the time difference value between the first TEGs to the location server.

[0709] Further, the base station indicates to the location server a method for obtaining the first TEGs, such as calculation and compensation according to different measurement results associated with multiple TEGs.

[0710] Optionally, the base station indicates to the location server a TEG identifier associated with the first TEGs. For example, a reference Tx TEG identifier and other Tx TEG identifiers are indicated.

[0711] 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.

[0712] Optionally, the reference Tx TEG can be agreed by a protocol, indicated by the location server, or selected by the gNB itself.

[0713] Optionally, it also includes:

[0714] sending a ninth indication signaling to the base station, the ninth indication signaling being used to indicate the base station to calculate and / or report the time difference value between the first TEGs, and / or compensate the error of the first TEGs in the uplink positioning measurement result.

[0715] Optionally, before the gNB reports the measurement result, the location server sends an indication to the base station, indicating whether the gNB can calculate and / or report the time difference between the Tx TEGs and / or compensate the error of the Tx TEGs in the measurement result.

[0716] Optionally, the third information indicated by the base station includes:

[0717] receive the uplink positioning measurement result reported by the base station, wherein the uplink positioning measurement result contains the first association relationship.

[0718] Optionally, if the first association relationship is indicated by the sequence and / or mapping mode, the base station contains the first association relationship in the uplink positioning measurement result when reporting the uplink positioning measurement result. Correspondingly, the location server receives the uplink positioning measurement result containing the first association relationship.

[0719] Optionally, the third information indicated by the base station further includes:

[0720] acquire the identification information of the uplink positioning reference signal associated with the uplink positioning measurement result;

[0721] The identification information of the uplink positioning reference signal includes at least one of the following:

[0722] uplink positioning reference signal resource set identification ID;

[0723] uplink positioning reference signal resource ID;

[0724] service cell ID or carrier ID;

[0725] part of bandwidth BWP ID;

[0726] bandwidth indicator;

[0727] the timestamp corresponding to the uplink positioning reference signal instance;

[0728] uplink positioning reference signal instance identification;

[0729] the frequency domain location information of the carrier and / or BWP where the uplink positioning reference signal is located.

[0730] Optionally, at least one of the following is further included:

[0731] acquire terminal capability information;

[0732] send the terminal capability information to the base station;

[0733] The terminal capability information includes one of the following:

[0734] calibration capability information;

[0735] Rx TEG capability information;

[0736] Tx TEG capability information;

[0737] RxTx TEG capability information.

[0738] Optionally, the terminal capability information is sent to the base station when the base station performs the positioning calculation.

[0739] The understanding of the calibration capability information, the Rx TEG capability information, the Tx TEG capability information, and the RxTx TEG capability information can refer to the foregoing embodiments, and will not be described here again.

[0740] The foregoing embodiments mainly give the association relationship between the uplink positioning reference signal and the first TEG, the association relationship between the downlink positioning measurement result and the second TEG, the association relationship between the downlink positioning reference signal and the third TEG, and the association relationship between the uplink positioning measurement result and the fourth TEG, but do not explain how the network side device eliminates the TEG error through the foregoing relationships. Therefore, the present application further gives several specific implementation manners for eliminating the TEG error by using the foregoing relationships.

[0741] Implementation manner one

[0742] In DL-TDOA positioning, the UE reports the association relationship between the PRS measurement and the Rx TEG to the location server (such as LMF). It is assumed that the UE has two Rx TEGs (Rx TEG0, Rx TEG1). The steps are as follows:

[0743] (1) In DL-TDOA positioning, multiple TRPs send PRS, and the UE receives. To calculate the RSTD (reference signal time difference) value between different TRPs, a certain TRP is taken as a reference, and the measurement results of the PRS of the other TRPs and the reference TRP are subtracted. The measurement result of a certain TRP can be understood as the result measured by the UE on the PRS resource under a certain TRP. For the reference TRP, if the UE measures the PRS resource of the reference TRP in relation to the Rx TEG0, and the UE measures the PRS resource of a certain TRP A in relation to the Rx TEG1, then when the RSTD of TRP A relative to the reference TRP is calculated, the error of the difference between the Rx TEG0 and the Rx TEG1 is introduced.

[0744] (2) The UE reports the measurement result of the Rx TEG0 and the measurement result of the Rx TEG1 under a certain PRS resource in TRP1. Then, the LMF subtracts the measurement results of the Rx TEG0 and the Rx TEG1, and obtains the difference between the Rx TEG0 and the Rx TEG1.

[0745] (3) The obtained difference between the Rx TEG0 and the Rx TEG1 can compensate the RSTD result in (1), and eliminates this error.

[0746] Implementation manner two

[0747] In UL-TDOA positioning, the UE reports the association relationship between SRS and Tx TEG to the location server (such as LMF). Assuming that the UE has two Tx TEGs (Tx TEG0, Tx TEG1). The steps are as follows:

[0748] (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 (received time of arrival) between different TRPs, a certain TRP is taken as a reference, and the SRS measurement results of other TRPs and the reference TRP are subtracted. Among them, the measurement result of a certain TRP can be understood as the result after measuring a certain SRS resource of the UE. For the reference TRP, if the measured SRS resource of the reference TRP is related to the UE Tx TEG0, and the measurement result of the measured SRS resource of a certain TRP A is related to the UE Tx TEG1, then when calculating the RTOA difference of TRP A relative to the reference TRP, the error of the difference between the UE Tx TEG0 and the UE Tx TEG1 will be introduced.

[0749] (2) The UE can indicate the association relationship between SRS and UE Tx TEG in multiple ways. A certain gNB can measure the RTOA values of two SRS resources, and each SRS resource is associated with two Tx TEGs. Then the gNB can calculate the difference between the UE Tx TEG0 and the UE Tx TEG1, and report it to the location server.

[0750] (3) Then, after obtaining the difference between the UE Tx TEG0 and the UE Tx TEG1, the location server can compensate for the error of the difference between the UE Tx TEG0 and the UE Tx TEG1 introduced in (1).

[0751] It should be noted that the time error group indication method provided in the embodiments of the present application can be executed by 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. In the embodiments of the present application, the time error group indication device executes the time error group indication method as an example to illustrate the time error group indication device provided in the embodiments of the present application.

[0752] Figure 8 One of the structural diagrams of the time error group indication device provided in the embodiments of the present application is shown in FIG. 8. Figure 8 As shown in FIG. 8, the device includes:

[0753] A first indication unit 810 is configured to indicate first information to a network side device; wherein the first information is used to assist the network side device in positioning calculation.

[0754] The first information includes at least one of the following:

[0755] The first association relationship is used to indicate an association relationship between the uplink positioning reference signal and a first time error group (TEG);

[0756] The second association relationship is used to indicate an association relationship between the downlink positioning measurement result and a second TEG;

[0757] And / or,

[0758] The first receiving unit 820 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 calculation related to positioning.

[0759] The second information is used to indicate that a downlink positioning reference signal resource set and / or a downlink positioning reference signal resource has an association relationship with an antenna port of a transmission and reception point (TRP).

[0760] Optionally, the method further includes:

[0761] The second receiving unit is configured to receive a first request message sent by the network side device, wherein the first request message is used to request the terminal to indicate the first information.

[0762] Optionally, the first information includes a first association relationship, and the first indicating unit is configured to perform at least one of the following:

[0763] The first association relationship is indicated by a sequence of the uplink positioning reference signal;

[0764] The first association relationship is indicated by a mapping manner of the uplink positioning reference signal;

[0765] The first association relationship is indicated by an event triggering manner;

[0766] The first association relationship is indicated in a non-periodic manner;

[0767] The first association relationship is indicated in a periodic manner.

[0768] Optionally, the sequence of the uplink positioning reference signal is generated according to a cyclic shift corresponding to the first TEG to which the uplink positioning reference signal is associated, wherein different cyclic shifts correspond to different first TEGs.

[0769] Optionally, the mapping manner of the uplink positioning reference signal is determined according to a time-frequency position corresponding to the first TEG to which the uplink positioning reference signal is associated, wherein different first TEGs are distinguished by a frequency division multiplexing manner.

[0770] Optionally, further comprising:

[0771] a third receiving unit, configured to receive first indication signaling sent by a network side device, the first indication signaling being used to indicate that a terminal starts a function of indicating a first association relationship through a sequence and / or mapping mode of an uplink positioning reference signal;

[0772] The terminal starts the function of indicating the first association relationship through the sequence and / or mapping mode of the uplink positioning reference signal.

[0773] Optionally, the event-triggered manner of indicating the first association relationship comprises:

[0774] In a case where the first TEG associated with the uplink positioning reference signal changes in a transmission process of the uplink positioning reference signal, the terminal is triggered to send TEG indication signaling;

[0775] The TEG indication signaling is used to indicate the first association relationship or that the first association relationship changes.

[0776] Optionally, the content of the TEG indication signaling comprises one of the following:

[0777] It is indicated that the association relationship between the uplink positioning reference signal of a latest uplink positioning reference signal instance before the TEG indication signaling and the first TEG changes, and the TEG indication signaling is valid until a latest second uplink positioning reference signal instance before a next TEG indication signaling.

[0778] It is indicated that the association relationship between the uplink positioning reference signal of a latest uplink positioning reference signal instance after the TEG indication signaling and the first TEG changes, and the TEG indication signaling is valid until a latest uplink positioning reference signal instance before a next TEG indication signaling.

[0779] Optionally, further comprising:

[0780] a first sending unit, configured to send second indication signaling at least once, the second indication signaling being used to indicate the first association relationship.

[0781] Optionally, the aperiodic indication of the first association relationship comprises:

[0782] Third indication signaling is sent at a first time t, the third indication signaling being used to indicate the association relationship between the uplink positioning reference signal of an uplink positioning reference signal instance in a first time window before the first time t and the first TEG.

[0783] The first time window includes P latest uplink positioning reference signal instances before a first time t, P is a positive integer, and P is obtained by at least one of the following manners: protocol agreement, network indication, and terminal selection.

[0784] Optionally, the periodic indication indicates the first association relationship, and the periodic indication includes:

[0785] The fourth indication signaling is transmitted according to a period T and / or a period offset, and the fourth indication signaling is used to indicate an association relationship between uplink positioning reference signals in adjacent period interval times and the first TEG.

[0786] Optionally, the period T and / or the period offset are related to a transmission period of the uplink positioning reference signal or a transmission period of an uplink positioning reference signal measurement result.

[0787] Optionally, the periodic indication indicates the first association relationship, and the periodic indication includes:

[0788] The first association relationship is indicated in a measurement report of a terminal receiving a transmission time difference UE Rx-Tx time difference.

[0789] Optionally, the first association relationship includes identification information of the uplink positioning reference signal.

[0790] The identification information of the uplink positioning reference signal includes at least one of the following:

[0791] An uplink positioning reference signal resource set identifier ID;

[0792] An uplink positioning reference signal resource ID;

[0793] A serving cell ID or a carrier ID;

[0794] A bandwidth part BWP ID;

[0795] A bandwidth indicator;

[0796] A timestamp corresponding to an uplink positioning reference signal instance;

[0797] An uplink positioning reference signal instance identifier;

[0798] Frequency domain location information of a carrier and / or a BWP where the uplink positioning reference signal is located.

[0799] Optionally, the first information includes a second association relationship, and the first indication unit is used to:

[0800] In a case where the downlink positioning measurement result comprises a downlink reference signal time difference (DL-RSTD) or a receive-transmit time difference (Rx-Tx time difference) or another type of downlink measurement result, the target positioning measurement result is indicated to be associated with N second TEGs;

[0801] The target positioning measurement result is a positioning measurement result obtained by the terminal performing measurement on a target downlink positioning reference signal resource, and N is a positive integer greater than or equal to 1, and N is obtained in at least one of the following manners: protocol agreement, network indication, and terminal selection.

[0802] Optionally, the indication of the association of the target positioning measurement result with the N second TEGs comprises at least one of the following:

[0803] The terminal indicates a path associated with the N second TEGs.

[0804] The terminal indicates a receive beam index associated with the N second TEGs.

[0805] The terminal indicates that the N second TEGs are obtained by scanning through multiple receive beams or are obtained by simultaneously measuring the target downlink positioning reference signal resource.

[0806] The terminal indicates a timestamp of a downlink positioning measurement result associated with the N second TEGs.

[0807] The terminal indicates a time difference between the N second TEGs.

[0808] The terminal indicates position information associated with the N second TEGs inside the terminal.

[0809] The terminal reports a downlink positioning measurement result associated with the N second TEGs.

[0810] The target positioning measurement result is indicated to be associated with the N second TEGs in downlink positioning measurement results corresponding to different timestamps.

[0811] Optionally, the indication of the association of the target positioning measurement result with the N second TEGs comprises:

[0812] In a case where a first preset condition is met, the association of the target positioning measurement result with multiple second TEGs is reported.

[0813] The first preset condition comprises at least one of the following:

[0814] There are multiple second TEGs associated with downlink positioning measurement results whose quality exceeds a first preset threshold.

[0815] The downlink positioning measurement result associated with the second TEG is a line-of-sight (LOS) measurement result, or the LOS probability of the downlink positioning measurement result is higher than a second preset threshold;

[0816] When the terminal performs receive beam sweeping, different receive beams are associated with different second TEGs, and the quality of the downlink positioning measurement results corresponding to the multiple receive beams exceeds a third preset threshold.

[0817] Optionally, the indication of the association relationship between the target positioning measurement result and the N second TEGs comprises:

[0818] In a case where the terminal is configured with a quasi-co-site (QCL) relationship of the target downlink positioning reference signal resource, the association relationship between the target positioning measurement result and one second TEG is indicated.

[0819] Optionally, the method further comprises:

[0820] The fourth receiving unit is configured to receive fifth indication signaling sent by the network side device, and the fifth indication signaling is used to instruct the terminal to measure the target downlink positioning reference signal resource in an Rx TEG sweeping manner.

[0821] Optionally, the terminal needs to measure the target downlink positioning reference signal resource in the Rx TEG sweeping manner, and at least one of the following conditions needs to be met:

[0822] The network side device does not indicate the spatial QCL information of the target downlink positioning reference signal resource;

[0823] The network side device indicates that the target downlink positioning reference signal resource is repeated.

[0824] Optionally, the indication of the terminal to measure the target downlink positioning reference signal resource in the Rx TEG sweeping manner comprises at least one of the following:

[0825] The terminal is instructed to measure the target downlink positioning reference signal resource in the Rx TEG sweeping manner once across M periods, where M is a positive integer, and M is obtained in at least one of the following manners: protocol agreement, network indication, or terminal selection;

[0826] The terminal is instructed to sweep part of the Rx TEGs, or the terminal is instructed to sweep across part of the Rx TEGs;

[0827] The terminal is instructed to report downlink positioning measurement results associated with different Rx TEGs.

[0828] Optionally, the indication that the terminal measures the downlink positioning reference signal resource once in an Rx TEG sweeping manner across M periods further comprises at least one of:

[0829] indicating a number of Rx TEGs in the total Rx TEG sweeping;

[0830] indicating a number of Rx TEGs in the Rx TEG sweeping in each downlink positioning reference signal instance.

[0831] Optionally, the method further comprises:

[0832] a second sending unit configured to send a reason why the terminal cannot perform Rx TEG sweeping according to the indication of the network-side device or send a reason why the terminal cannot report the downlink positioning measurement result.

[0833] Optionally, the method further comprises:

[0834] a fifth receiving unit configured to, in a case where the terminal has indicated N second TEGs associated with the first downlink positioning reference signal resource and / or measurement results of the N second TEGs and / or a plurality of receive beam indexes, receive sixth indication signaling sent by the network-side device, the sixth indication signaling being used to indicate that the terminal takes the first downlink positioning reference signal resource as a reference resource of a second downlink positioning reference signal resource;

[0835] a sixth receiving unit configured to receive the second downlink positioning reference signal resource using the N second TEGs or the plurality of receive beam indexes associated with the first downlink positioning reference signal resource.

[0836] Optionally, the first information comprises a second association relationship, and the first indication unit is configured to:

[0837] in a case where the downlink positioning measurement result comprises a terminal-received transmission time difference (UE Rx-Tx time difference), the terminal performs one of:

[0838] indicating an association relationship between the downlink positioning measurement result and an Rx TEG and a Tx TEG;

[0839] indicating an association relationship between the downlink positioning measurement result and an RxTx TEG;

[0840] indicating an association relationship between the downlink positioning measurement result and an Rx TEG.

[0841] Optionally, the method further comprises:

[0842] a first indication unit configured to indicate whether a time error of the downlink positioning measurement result is compensated or not.

[0843] Optionally, further comprising:

[0844] a seventh receiving unit, configured to receive seventh indication signaling sent by the network-side device, the seventh indication signaling being used to indicate a number of TEGs that can be associated when the terminal measures the downlink positioning reference signal or transmits the uplink positioning reference signal.

[0845] Optionally, further comprising:

[0846] an eighth receiving unit, configured to receive eighth indication signaling sent by the network-side device, the eighth indication signaling being used to indicate a time difference value between calculation and / or reporting of the second TEG, and / or to compensate for an error of the second TEG in a downlink positioning measurement result.

[0847] Optionally, further comprising:

[0848] a third sending unit, configured to report terminal capability information to the network-side device;

[0849] The terminal capability information comprises one of the following:

[0850] calibration capability information;

[0851] Rx TEG capability information;

[0852] Tx TEG capability information;

[0853] RxTx TEG capability information.

[0854] Optionally, the calibration capability information comprises at least one of the following:

[0855] the terminal does not support calibration of Rx timing error, Tx timing error and RxTx timing error;

[0856] the terminal supports calibration of Rx timing error;

[0857] the terminal supports calibration of Tx timing error;

[0858] the terminal supports calibration of RxTx timing error.

[0859] Optionally, the Rx TEG capability information comprises at least one of the following:

[0860] a number of Rx TEGs supported by the terminal;

[0861] a number of Rx TEGs that can be activated or have been activated by the terminal;

[0862] A maximum number of Rx TEGs associated with one downlink positioning reference signal resource or a positioning measurement result of one downlink positioning reference signal resource at the same time.

[0863] Optionally, the Tx TEG capability information comprises at least one of:

[0864] A number of Tx TEGs supported by the terminal;

[0865] A number of Tx TEGs that can be activated or activated by the terminal;

[0866] A number of Tx TEGs associated with the uplink positioning reference signal resource sent by the terminal.

[0867] Optionally, the RxTx TEG capability information comprises at least one of:

[0868] A number of RxTx TEGs supported by the terminal;

[0869] A number of RxTx TEGs that can be activated or activated by the terminal.

[0870] Optionally, further comprising a first determining unit, configured to:

[0871] Determine that a plurality of downlink positioning reference signal resource sets of the TRP have an association relationship with a plurality of antenna ports of the TRP;

[0872] Determine that a plurality of downlink positioning reference signal resources in the downlink positioning reference signal resource set have an association relationship with a plurality of antenna ports of the TRP;

[0873] Determine that a plurality of repeated downlink positioning reference signal resources corresponding to the same downlink positioning reference signal resource identifier have an association relationship with a plurality of antenna ports of the TRP.

[0874] Optionally, the plurality of downlink positioning reference signal resource sets of the TRP have an association relationship with the plurality of antenna ports of the TRP, comprising one of:

[0875] Different downlink positioning reference signal resource sets are associated with different groups of TRP antenna ports;

[0876] At least one downlink positioning reference signal resource set is associated with 1 group of TRP antenna ports;

[0877] Wherein, 1 group of antenna ports of the TRP at least contains 1 TRP antenna port.

[0878] Optionally, the plurality of downlink positioning reference signal resources in the downlink positioning reference signal resource set have an association relationship with the plurality of antenna ports of the TRP, comprising one of:

[0879] In the set of downlink positioning reference signal resources, different downlink positioning reference signal resources are associated with different antenna ports of the TRP.

[0880] In the set of downlink positioning reference signal resources, at least one downlink positioning reference signal resource is associated with the same antenna port of the TRP.

[0881] In the set of downlink positioning reference signal resources, at least one downlink positioning reference signal resource is associated with the same antenna port of the TRP.

[0882] Optionally, the same downlink positioning reference signal resource indicates that the corresponding multiple repeated downlink positioning reference signal resources are associated with the multiple antenna ports of the TRP, including one of the following:

[0883] Different repeated downlink positioning reference signal resources are associated with different antenna ports of the TRP.

[0884] At least one repeated downlink positioning reference signal resource is associated with the same antenna port of the TRP.

[0885] Optionally, the set of downlink positioning reference signal resources, and / or the downlink positioning reference signal resource, and / or the repetition of the downlink positioning reference signal resource should be associated with all antenna ports of the TRP.

[0886] Optionally, the second information further includes a function indication of the set of downlink positioning reference signal resources and / or the downlink positioning reference signal resource.

[0887] Optionally, it further includes:

[0888] The first processing unit is configured to measure the channels of different ports and perform a codebook traversal process to obtain the best codebook and / or the best AOD angle matching the channel.

[0889] Optionally, the second information further includes at least one of the following:

[0890] The association relationship between the set of downlink positioning reference signal resources and the antenna ports of the TRP;

[0891] The association relationship between the downlink positioning reference signal resource and the antenna port of the TRP;

[0892] The association relationship between the repeated downlink positioning reference signal resource and the antenna port of the TRP.

[0893] In the embodiments of the present application, by indicating the first information to the network side device and / or receiving the second information, the network side device is assisted to perform positioning calculation, thereby reducing or eliminating the influence of the time error group on the positioning accuracy, and improving the positioning accuracy.

[0894] The time error group indication device in the embodiments of the present application can be a device, a device with an operating system, or an electronic device, and can also be a component in a terminal, an integrated circuit, or a chip. The device or electronic device can be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal can include, but is not limited to, the types of terminal 11 listed above, and the non-mobile terminal can be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a teller machine, or a self-service machine, and the like, which are not limited in the embodiments of the present application.

[0895] The time error group indication provided by the embodiments of the present application can achieve Figures 2 to 5 The method embodiments achieve various processes and achieve the same technical effects, and to avoid repetition, details are not repeated here.

[0896] Figure 9 The second structural diagram of the time error group indication device provided by the embodiments of the present application is shown in FIG. 9. As shown in FIG. 9, the device includes: Figure 9

[0897] The third indication unit 910 is configured to indicate third information to a location server, and the third information is used to assist the location server in performing positioning calculation.

[0898] The third information includes at least one of the following:

[0899] The third association relationship is used to indicate the association relationship between the downlink positioning reference signal and the third time error group (TEG).

[0900] The fourth association relationship is used to indicate the association relationship between the uplink positioning measurement result and the fourth TEG.

[0901] The uplink positioning measurement result.

[0902] And / or,

[0903] The fourth indication unit 920 is configured to indicate second information to a terminal, and the second information is used to indicate that the downlink positioning reference signal resource set and / or the downlink positioning reference signal resource has an association relationship with the antenna port of the transmission and reception point (TRP).

[0904] Optionally, the device further includes:

[0905] The first acquisition unit is configured to acquire the first association relationship indicated by the terminal or the location server, and the first association relationship is used to indicate the association relationship between the uplink positioning reference signal and the first TEG.

[0906] ​Optionally, further comprising:

[0907] a fifth indication unit, configured to indicate fourth information to the location server;

[0908] wherein the fourth information comprises at least one of the following:

[0909] a time difference value between the first TEGs;

[0910] a credibility or quality of the time difference value between the first TEGs;

[0911] a method for obtaining the first TEG;

[0912] a TEG identifier associated with the first TEG.

[0913] Optionally, further comprising:

[0914] a ninth receiving unit, configured to receive ninth indication signaling sent by the location server, the ninth indication signaling being used to indicate that the base station calculates and / or reports the time difference value between the first TEGs, and / or compensates for errors of the first TEGs in the uplink positioning measurement result, and / or reports an association relationship between the uplink positioning measurement result and the first TEG.

[0915] Optionally, the third indication unit is configured to:

[0916] report the uplink positioning measurement result in a case where the first association relationship is indicated by a sequence and / or a mapping manner, wherein the uplink positioning measurement result comprises the first association relationship.

[0917] Optionally, further comprising:

[0918] a fourth sending unit, configured to report, to the location server, identification information of an uplink positioning reference signal associated with the uplink positioning measurement result;

[0919] wherein the identification information of the uplink positioning reference signal comprises at least one of the following:

[0920] an uplink positioning reference signal resource set identifier ID;

[0921] an uplink positioning reference signal resource ID;

[0922] a serving cell ID or a carrier ID;

[0923] a partial bandwidth BWP ID;

[0924] a bandwidth indicator;

[0925] a timestamp corresponding to an uplink positioning reference signal instance;

[0926] An uplink positioning reference signal instance identifier;

[0927] A frequency domain location information of a carrier and / or a BWP where the uplink positioning reference signal is located.

[0928] Optionally, further comprising:

[0929] A tenth receiving unit, configured to receive terminal capability information sent by a terminal or a location server;

[0930] The terminal capability information comprises one of the following:

[0931] Calibration capability information;

[0932] Rx TEG capability information;

[0933] Tx TEG capability information;

[0934] RxTx TEG capability information.

[0935] In the embodiments of the present application, by indicating the third information to the location server and / or indicating the second information to the terminal, the location server can be assisted to perform positioning calculation, thereby reducing or eliminating the influence of the time error group on the positioning accuracy and improving the positioning accuracy.

[0936] Figure 10 A structure diagram of a time error group indication device provided by the embodiments of the present application is shown in Figure 3. As shown in Figure 3, the device comprises: Figure 10

[0937] A second obtaining unit 1010, configured to obtain first information indicated by a terminal, wherein the first information is used to assist a location server or a base station to perform positioning calculation;

[0938] The first information comprises at least one of the following:

[0939] A first association relationship, wherein the first association relationship is used to indicate an association relationship between an uplink positioning reference signal and a first time error group TEG;

[0940] A second association relationship, wherein the second association relationship is used to indicate an association relationship between a downlink positioning measurement result and a second TEG;

[0941] And / or,

[0942] A sixth indication unit 1020, configured to indicate second information by 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 has an association relationship with an antenna port of a transmission and reception point TRP.

[0943] Optionally, further comprising:

[0944] ​The fifth sending unit is configured to send a first request message to the terminal, where the first request message is used to request the terminal to indicate the first information.

[0945] Optionally, the first information comprises a first association relationship, and the second obtaining unit performs at least one of the following:

[0946] The first association relationship is obtained through a sequence of the uplink positioning reference signal.

[0947] The first association relationship is obtained through a mapping mode of the uplink positioning reference signal.

[0948] The first association relationship is obtained through an event triggering mode.

[0949] The first association relationship is obtained aperiodically.

[0950] The first association relationship is obtained periodically.

[0951] Optionally, the method further comprises:

[0952] The sixth sending unit is configured to send a first indication signaling to the terminal, where the first indication signaling is used to instruct the terminal to start a function of indicating the first association relationship through the sequence and / or the mapping mode of the uplink positioning reference signal.

[0953] Optionally, the first association relationship is obtained through the event triggering mode, and the method comprises:

[0954] The TEG indication signaling sent by the terminal is received, where the TEG indication signaling is used to indicate the first association relationship or a change of the first association relationship.

[0955] Optionally, the method further comprises:

[0956] The eleventh receiving unit is configured to receive the second indication signaling at least once, where the second indication signaling is used to indicate the first association relationship.

[0957] Optionally, the first association relationship is obtained aperiodically, and the method comprises:

[0958] The third indication signaling sent by the terminal is received, where the third indication signaling is used to indicate an association relationship between an uplink positioning reference signal instance of the uplink positioning reference signal and the first TEG within a first time window before a first time t.

[0959] The first time window comprises P latest uplink positioning reference signal instances before the first time t, and P is a positive integer, and P is obtained through at least one of a protocol agreement, network indication and terminal selection.

[0960] Optionally, the first association relationship is obtained periodically, and the method comprises at least one of the following:

[0961] The receiving terminal receives fourth indication signaling sent according to the period T and / or the period offset, and the fourth indication signaling is used to indicate the association relationship between the uplink positioning reference signal and the TEG in the inter-period interval time.

[0962] The first association relationship is obtained in terminal measurement reporting of a transmission time difference UE Rx-Tx time difference.

[0963] Optionally, the first information includes a second association relationship, and the second obtaining unit is used to:

[0964] In a case where downlink positioning measurement results received by the location server include downlink reference signal time difference DL-RSTD or reception-transmission time difference Rx-Tx time difference or other types of downlink measurement results, for a target positioning measurement result, the association relationship between the target positioning measurement result and N second TEGs indicated by the terminal is obtained.

[0965] The target positioning measurement result is a positioning measurement result obtained by the terminal performing measurement on a target downlink positioning reference signal resource, and N is a positive integer greater than or equal to 1, and N is obtained in at least one of the following manners: protocol agreement, network indication, and terminal selection.

[0966] Optionally, the obtaining of the association relationship between the target positioning measurement result and the N second TEGs includes at least one of the following:

[0967] Obtaining a path associated with the N second TEGs indicated by the terminal;

[0968] Obtaining a reception beam index associated with the N second TEGs indicated by the terminal;

[0969] Obtaining that the N second TEGs indicated by the terminal are obtained through multiple reception beam scanning or through simultaneous measurement on the target downlink positioning reference signal resource;

[0970] Obtaining a timestamp of a downlink positioning measurement result associated with the N second TEGs indicated by the terminal;

[0971] Obtaining a time difference between the N second TEGs indicated by the terminal;

[0972] Obtaining location information associated inside the terminal of the N second TEGs indicated by the terminal;

[0973] Obtaining a downlink positioning measurement result associated with the N second TEGs reported by the terminal;

[0974] Obtaining the association relationship between the target positioning measurement result and the N second TEGs indicated in downlink positioning measurement results corresponding to different timestamps.

[0975] Optionally, further comprising:

[0976] a seventh sending unit, configured to send fifth indication signaling to the terminal, where the fifth indication signaling is used to instruct the terminal to measure the target downlink positioning reference signal resource in a Rx TEG sweeping manner.

[0977] Optionally, the seventh sending unit is further configured to:

[0978] not indicate the spatial QCL information of the target downlink positioning reference signal resource;

[0979] indicate repetition of the target downlink positioning reference signal resource.

[0980] Optionally, the instruction to the terminal to measure the downlink positioning reference signal resource in a Rx TEG sweeping manner comprises at least one of:

[0981] instruction to the terminal to measure the target downlink positioning reference signal resource once in a Rx TEG sweeping manner across M periods, where M is a positive integer, and M is obtained in at least one of the following manners: protocol agreement, network indication, or terminal selection;

[0982] instruction to the terminal to perform scanning on part of Rx TEGs, or instruction to the terminal to perform scanning across part of Rx TEGs;

[0983] instruction to the terminal to report downlink positioning measurement results associated with different Rx TEGs.

[0984] Optionally, the instruction to the terminal to measure the downlink positioning reference signal resource once in a Rx TEG sweeping manner across M periods further comprises at least one of:

[0985] instruction to the total number of Rx TEGs in the Rx TEG sweeping;

[0986] instruction to the number of Rx TEGs in the Rx TEG sweeping in each downlink positioning reference signal instance.

[0987] Optionally, further comprising:

[0988] an eighth sending unit, configured to send sixth indication signaling to the terminal in a case where the terminal has indicated N second TEGs associated with the first downlink positioning reference signal resource and / or measurement results of the N second TEGs and / or a plurality of reception beam indexes;

[0989] The sixth indication signaling is used for instructing the terminal to take the first downlink positioning reference signal resource as a reference resource of a second downlink positioning reference signal resource.

[0990] Optionally, the first information includes a second association relationship, and the second obtaining unit is configured to:

[0991] In a case where the downlink positioning measurement result received by the location server contains a terminal reception-transmission time difference (UE Rx-Tx time difference), the base station performs one of the following:

[0992] Obtain an association relationship between the downlink positioning measurement result and the Rx TEG and the Tx TEG;

[0993] Obtain an association relationship between the downlink positioning measurement result and the Rx-Tx TEG;

[0994] Obtain an association relationship between the downlink positioning measurement result and the Rx TEG.

[0995] Optionally, the method further includes:

[0996] The twelfth receiving unit is configured to receive information indicated by the terminal about whether a time error of the downlink positioning measurement result is compensated or not.

[0997] Optionally, the method further includes:

[0998] The ninth sending unit is configured to send seventh indication signaling to the terminal, where the seventh indication signaling is used for instructing the terminal to measure a number of TEGs that can be associated when measuring the downlink positioning reference signal or sending the uplink positioning reference signal.

[0999] Optionally, the method further includes:

[1000] The tenth sending unit is configured to send eighth indication signaling to the terminal, where the eighth indication signaling is used for instructing the terminal to calculate and / or report a time difference value between the second TEG and / or compensate an error of the second TEG in the downlink positioning measurement result.

[1001] Optionally, the method further includes:

[1002] The thirteenth receiving unit is configured to receive terminal capability information.

[1003] The terminal capability information includes one of the following:

[1004] Calibration capability information;

[1005] Rx TEG capability information;

[1006] Tx TEG capability information;

[1007] RxTx TEG capability information.

[1008] Optionally, further comprising:

[1009] a third obtaining unit, configured to obtain third information indicated by the base station, the third information being used for assisting the location server in performing positioning calculation;

[1010] The third information comprises at least one of the following:

[1011] a third association relationship, the third association relationship being used for indicating an association relationship between a downlink positioning reference signal and a third time error group (TEG);

[1012] a fourth association relationship, the fourth association relationship being used for indicating an association relationship between an uplink positioning measurement result and a fourth TEG;

[1013] an uplink positioning measurement result.

[1014] Optionally, further comprising:

[1015] a seventh indicating unit, configured to indicate the first association relationship to the base station.

[1016] Optionally, further comprising:

[1017] a fourth obtaining unit, configured to obtain fourth information indicated by the base station;

[1018] The fourth information comprises at least one of the following:

[1019] a time difference value between the first TEGs;

[1020] a credibility or quality of the time difference value between the first TEGs;

[1021] a method for obtaining the first TEG;

[1022] a TEG identifier associated with the first TEG.

[1023] Optionally, further comprising:

[1024] an eleventh sending unit, configured to send ninth indication signaling to the base station, the ninth indication signaling being used for instructing the base station to calculate and / or report the time difference value between the first TEGs and / or compensate for errors of the first TEGs in the uplink positioning measurement result.

[1025] Optionally, the third obtaining unit is configured to:

[1026] receive an uplink positioning measurement result reported by the base station, wherein the uplink positioning measurement result contains the first association relationship.

[1027] Optionally, the third obtaining unit is further configured to:

[1028] obtaining identification information of the uplink positioning reference signal associated with the uplink positioning measurement result;

[1029] The identification information of the uplink positioning reference signal includes at least one of the following:

[1030] an uplink positioning reference signal resource set identification ID;

[1031] an uplink positioning reference signal resource ID;

[1032] a serving cell ID or a carrier ID;

[1033] a bandwidth BWP ID;

[1034] a bandwidth indicator;

[1035] a timestamp corresponding to an uplink positioning reference signal instance;

[1036] an uplink positioning reference signal instance identification;

[1037] frequency domain location information of a carrier and / or BWP where the uplink positioning reference signal is located.

[1038] Optionally, the following at least one is further included:

[1039] a fourth obtaining unit, configured to obtain terminal capability information;

[1040] a twelfth sending unit, configured to send the terminal capability information to a base station;

[1041] The terminal capability information includes one of the following:

[1042] calibration capability information;

[1043] Rx TEG capability information;

[1044] Tx TEG capability information;

[1045] RxTx TEG capability information.

[1046] In the embodiments of the present application, by obtaining the association relationship between the uplink positioning reference signal indicated by the terminal and the first time error group TEG and / or the association relationship between the downlink positioning measurement result and the second TEG, and / or indicating the second information to the terminal to assist in positioning calculation, the influence of the time error group on the positioning accuracy is reduced or eliminated, and the positioning accuracy is improved.

[1047] Optionally, as Figure 11As shown, the embodiments of the present application further provide a communication device 1100, which comprises a processor 1101, a memory 1102, a program or instruction stored in the memory 1102 and executable on the processor 1101, for example, when the communication device 1100 is a terminal, the program or instruction is executed by the processor 1101 to implement each process of the above-mentioned time error group indication method embodiments, and the same technical effects can be achieved. When the communication device 1100 is a network side device, the program or instruction is executed by the processor 1101 to implement each process of the above-mentioned time error group indication method embodiments, and the same technical effects can be achieved, to avoid repetition, which will not be described here.

[1048] The embodiments of the present application further provide a terminal, which comprises a processor and a communication interface, the processor is configured to indicate first information to a network side device; wherein the first information is used to assist the network side device to perform positioning calculation, and / or the communication interface is configured to receive second information sent by the network side device; wherein the first information comprises at least one of the following: a first association relationship, the first association relationship is used to indicate an association relationship between an uplink positioning reference signal and a first time error group TEG; a second association relationship, the second association relationship is used to indicate an 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 to perform positioning-related calculation; and the second information is used to indicate a downlink positioning reference signal resource set and / or an association relationship between a downlink positioning reference signal resource and an antenna port of a transmission and reception point TRP. The terminal embodiment corresponds to the above-mentioned terminal side method embodiment, each implementation process and implementation manner of the above-mentioned method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, Figure 12 A hardware structure diagram of a terminal for implementing the embodiments of the present application.

[1049] The terminal 1200 includes, but is not limited to, at least part of components such as a radio frequency unit 1201, a network module 1202, an audio output unit 1203, an input unit 1204, a sensor 1205, a display unit 1206, a user input unit 1207, an interface unit 1208, a memory 1209, and a processor 1210.

[1050] Those skilled in the art can understand that the terminal 1200 can further include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 1210 through a power management system, so as to realize functions such as management of charging, discharging, and power consumption management through the power management system. Figure 12 The terminal structure shown in the figure does not constitute a limitation on the terminal, and the terminal can include more or fewer components than shown, or combine certain components, or different component arrangements, which will not be described here.

[1051] It should be understood that in the embodiments of the present application, the input unit 1204 can include a graphics processing unit (GPU) 12041 and a microphone 12042. The graphics processing unit 12041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1206 can include a display panel 12061, which can 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 can include two parts of a touch detection device and a touch controller. The other input devices 12072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), trackballs, mice, joysticks, and the like, which will not be described here.

[1052] In the embodiments of the present application, the radio frequency unit 1201 receives the downlink data from the network side device and processes it by the processor 1210. In addition, the radio frequency unit 1201 sends the uplink data to the network side device. Generally, 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.

[1053] The memory 1209 can be used to store software programs or instructions and various data. The memory 1209 can mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area can store an operating system, at least one application program or instruction required by a function (such as a sound playing function, an image playing function, etc.), etc. In addition, the memory 1209 can include a high-speed random access memory, and can also include a non-volatile memory, which can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. For example, at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state memory device.

[1054] The processor 1210 can include one or more processing units; optionally, the processor 1210 can integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and an application program or instruction, etc., and the modem processor mainly processes wireless communication, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 1210.

[1055] The processor 1210 is configured to indicate first information to a network side device, wherein the first information is used to assist the network side device in performing positioning calculation.

[1056] And / or,

[1057] The radio frequency unit 1201 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 positioning calculation.

[1058] The second information is used to indicate a set of downlink positioning reference signal resources and / or an association relationship between a downlink positioning reference signal resource and an antenna port of a transmission and reception point (TRP).

[1059] In the embodiments of the present application, by indicating the first information to the network side device and / or receiving the second information, the network side device is assisted in performing positioning calculation, thereby reducing or eliminating the influence of time error groups on positioning accuracy and improving the positioning accuracy.

[1060] Optionally, the radio frequency unit 1201 is further configured to receive a first request message sent by the network side device, wherein the first request message is used to request the terminal to indicate the first information.

[1061] Optionally, the first information includes a first association relationship, and the first indication unit is configured to perform at least one of the following:

[1062] The first association relationship is indicated by a sequence of an uplink positioning reference signal.

[1063] The first association relationship is indicated by a mapping manner of the uplink positioning reference signal.

[1064] The first association relationship is indicated by an event triggering manner.

[1065] The first association relationship is indicated in a non-periodic manner.

[1066] The first association relationship is indicated in a periodic manner.

[1067] Optionally, the sequence of the uplink positioning reference signal is generated according to a cyclic shift corresponding to a first TEG associated with the uplink positioning reference signal, wherein different cyclic shifts correspond to different first TEGs.

[1068] Optionally, the mapping manner of the uplink positioning reference signal is determined according to a time-frequency position corresponding to a first TEG associated with the uplink positioning reference signal, wherein different first TEGs are distinguished by frequency division multiplexing.

[1069] Optionally, the radio frequency unit 1201 is further configured to:

[1070] receive first indication signaling sent by the network side device, the first indication signaling being used to indicate that the terminal starts the function of indicating the first association relationship through a sequence and / or mapping mode of an uplink positioning reference signal;

[1071] The processor 1210 is further configured to start the function of indicating the first association relationship through a sequence and / or mapping mode of an uplink positioning reference signal.

[1072] Optionally, the first association relationship is indicated through an event-triggered manner, including:

[1073] In a case where the first TEG associated with the uplink positioning reference signal changes in a transmission process of the uplink positioning reference signal, the terminal is triggered to send TEG indication signaling;

[1074] The TEG indication signaling is used to indicate the first association relationship or that the first association relationship changes.

[1075] Optionally, the content of the TEG indication signaling includes one of the following:

[1076] It is indicated that the association relationship between the uplink positioning reference signal of the most recent one of uplink positioning reference signal instances before the TEG indication signaling and the first TEG changes, and the TEG indication signaling is valid until the most recent second one of uplink positioning reference signal instances before the next TEG indication signaling.

[1077] It is indicated that the association relationship between the uplink positioning reference signal of the most recent one of uplink positioning reference signal instances after the TEG indication signaling and the first TEG changes, and the TEG indication signaling is valid until the most recent one of uplink positioning reference signal instances before the next TEG indication signaling.

[1078] Optionally, the radio frequency unit 1201 is further configured to:

[1079] Send the second indication signaling at least once, the second indication signaling being used to indicate the first association relationship.

[1080] Optionally, the first association relationship is indicated through aperiodic indication, including:

[1081] Send third indication signaling at a first time t, the third indication signaling being used to indicate the association relationship between the uplink positioning reference signal of an uplink positioning reference signal instance in a first time window before the first time t and the first TEG.

[1082] The first time window includes the most recent P uplink positioning reference signal instances before the first time t, P being a positive integer, and P being obtained through at least one of the following manners: protocol agreement, network indication, and terminal selection.

[1083] Optionally, the periodicity indicates the first association relationship, and the periodicity includes:

[1084] The fourth indication signaling is transmitted according to a period T and / or a period offset, and the fourth indication signaling is used to indicate an association relationship between uplink positioning reference signals in adjacent period interval times and the first TEG.

[1085] Optionally, the period T and / or the period offset are related to a transmission period of the uplink positioning reference signal or a transmission period of an uplink positioning reference signal measurement result.

[1086] Optionally, the periodicity indicates the first association relationship, and the periodicity includes:

[1087] The first association relationship is indicated in a measurement report of a terminal receiving a transmission time difference UE Rx-Tx time difference.

[1088] Optionally, the first association relationship includes identification information of the uplink positioning reference signal.

[1089] The identification information of the uplink positioning reference signal includes at least one of the following:

[1090] An uplink positioning reference signal resource set identification ID;

[1091] An uplink positioning reference signal resource ID;

[1092] A serving cell ID or a carrier ID;

[1093] A partial bandwidth BWP ID;

[1094] A bandwidth indicator;

[1095] A timestamp corresponding to an uplink positioning reference signal instance;

[1096] An uplink positioning reference signal instance identification;

[1097] Frequency domain location information of a carrier and / or a BWP where the uplink positioning reference signal is located.

[1098] Optionally, the first information includes a second association relationship, and the first indication unit is used to:

[1099] In a case where a downlink positioning measurement result includes a downlink reference signal time difference DL-RSTD or a reception-transmission time difference Rx-Tx time difference or other types of downlink measurement results, for a target positioning measurement result, the target positioning measurement result is indicated to be associated with N second TEGs.

[1100] The target positioning measurement result is a positioning measurement result obtained by the terminal measuring a target downlink positioning reference signal resource, N is a positive integer greater than or equal to 1, and N is obtained in at least one of the following manners: protocol agreement, network indication, and terminal selection.

[1101] Optionally, the indication of the association relationship between the target positioning measurement result and the N second TEGs comprises at least one of the following:

[1102] An indication of a path associated with the N second TEGs;

[1103] An indication of a receiving beam index associated with the N second TEGs;

[1104] An indication that the N second TEGs are obtained through multiple receiving beam scanning or through simultaneous measurement of the target downlink positioning reference signal resource;

[1105] An indication of a timestamp of a downlink positioning measurement result associated with the N second TEGs;

[1106] An indication of a time difference between the N second TEGs;

[1107] An indication of position information associated with the N second TEGs inside the terminal;

[1108] Reporting of a downlink positioning measurement result associated with the N second TEGs;

[1109] In different downlink positioning measurement results corresponding to different timestamps, an indication of the association relationship between the target positioning measurement result and the N second TEGs.

[1110] Optionally, the indication of the association relationship between the target positioning measurement result and the N second TEGs comprises:

[1111] In a case where a first preset condition is met, reporting of the association relationship between the target positioning measurement result and multiple second TEGs;

[1112] The first preset condition comprises at least one of the following:

[1113] There are multiple second TEGs associated with downlink positioning measurement results whose quality exceeds a first preset threshold;

[1114] There are multiple second TEGs associated with downlink positioning measurement results that are line-of-sight (LOS) measurement results, or the LOS probability of the downlink positioning measurement result is higher than a second preset threshold;

[1115] When the terminal performs receiving beam scanning, different receiving 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.

[1116] Optionally, the indication of the association between the target positioning measurement result and the N second TEGs comprises:

[1117] In a case where the terminal is configured with a quasi-co-location (QCL) relationship of the target downlink positioning reference signal resource, the indication of the association between the target positioning measurement result and the one second TEG.

[1118] Optionally, the radio frequency unit 1201 is further configured to:

[1119] receive fifth indication signaling sent by the network side device, the fifth indication signaling being used to instruct the terminal to measure the target downlink positioning reference signal resource in an Rx TEG sweeping manner.

[1120] Optionally, the measurement of the target downlink positioning reference signal resource in the Rx TEG sweeping manner by the terminal needs to meet at least one of the following conditions:

[1121] The network side device does not indicate the spatial QCL information of the target downlink positioning reference signal resource.

[1122] The network side device indicates that the target downlink positioning reference signal resource is repeated.

[1123] Optionally, the indication of the measurement of the target downlink positioning reference signal resource in the Rx TEG sweeping manner by the terminal comprises at least one of the following:

[1124] The indication of the measurement of the target downlink positioning reference signal resource in the Rx TEG sweeping manner by the terminal across M cycles once, wherein M is a positive integer, and M is obtained in at least one of the following manners: protocol agreement, network indication, or terminal selection.

[1125] The indication of the scanning of part of the Rx TEGs or the indication of the scanning of the Rx TEGs across part of the Rx TEGs.

[1126] The indication of the reporting of the downlink positioning measurement results associated with different Rx TEGs by the terminal.

[1127] Optionally, the indication of the measurement of the target downlink positioning reference signal resource in the Rx TEG sweeping manner by the terminal across M cycles once further comprises at least one of the following:

[1128] The indication of the number of Rx TEGs in the total Rx TEG sweeping.

[1129] The indication of the number of Rx TEGs in the Rx TEG sweeping in each downlink positioning reference signal instance.

[1130] Optionally, the radio frequency unit 1201 is further configured to:

[1131] send a reason why the terminal cannot perform Rx TEG scanning according to the indication of the network side device or a reason why the terminal cannot report the downlink positioning measurement result.

[1132] Optionally, the radio frequency unit 1201 is further configured to:

[1133] In a case where the terminal has indicated N second TEGs associated with the first downlink positioning reference signal resource and / or measurement results of the N second TEGs and / or a plurality of reception beam indexes, receive sixth indication signaling sent by the network side device, the sixth indication signaling being used to indicate that the terminal takes the first downlink positioning reference signal resource as a reference resource of a second downlink positioning reference signal resource;

[1134] receive the second downlink positioning reference signal resource using the N second TEGs or the plurality of reception beam indexes associated with the first downlink positioning reference signal resource.

[1135] Optionally, the first information includes a second association relationship, and the first indication unit is configured to:

[1136] In a case where the downlink positioning measurement result contains a terminal reception transmission time difference UE Rx-Tx time difference, the terminal performs one of the following:

[1137] indicate an association relationship between the downlink positioning measurement result and an Rx TEG and a Tx TEG;

[1138] indicate an association relationship between the downlink positioning measurement result and an RxTx TEG;

[1139] indicate an association relationship between the downlink positioning measurement result and an Rx TEG.

[1140] Optionally, the processor 1210 is further configured to:

[1141] indicate whether a time error of the downlink positioning measurement result is compensated or not.

[1142] Optionally, the radio frequency unit 1201 is further configured to:

[1143] receive seventh indication signaling sent by the network side device, the seventh indication signaling being used to indicate a number of TEGs that the terminal can associate with when measuring a downlink positioning reference signal or sending an uplink positioning reference signal.

[1144] Optionally, the radio frequency unit 1201 is further configured to:

[1145] receive eighth indication signaling sent by the network side device, the eighth indication signaling being used to indicate a time difference value between terminal calculation and / or reporting of the second TEG, and / or compensate for an error of the second TEG in downlink positioning measurement results.

[1146] Optionally, the radio frequency unit 1201 is further configured to:

[1147] report terminal capability information to the network side device;

[1148] The terminal capability information includes one of the following:

[1149] calibration capability information;

[1150] Rx TEG capability information;

[1151] Tx TEG capability information;

[1152] RxTx TEG capability information.

[1153] Optionally, the calibration capability information includes at least one of the following:

[1154] the terminal does not support calibration of Rx timing error, Tx timing error, and RxTx timing error;

[1155] the terminal supports calibration of Rx timing error;

[1156] the terminal supports calibration of Tx timing error;

[1157] the terminal supports calibration of RxTx timing error.

[1158] Optionally, the Rx TEG capability information includes at least one of the following:

[1159] a number of Rx TEGs supported by the terminal;

[1160] a number of Rx TEGs that can be activated or have been activated by the terminal;

[1161] a maximum number of Rx TEGs associated with a downlink positioning reference signal resource or a positioning measurement result of one downlink positioning reference signal resource at the same time.

[1162] Optionally, the Tx TEG capability information includes at least one of the following:

[1163] a number of Tx TEGs supported by the terminal;

[1164] a number of Tx TEGs that can be activated or have been activated by the terminal;

[1165] The number of Tx TEGs associated with the uplink positioning reference signal resource sent by the terminal.

[1166] Optionally, the RxTx TEG capability information includes at least one of the following:

[1167] The number of RxTx TEGs supported by the terminal;

[1168] The number of RxTx TEGs that can be activated or have been activated by the terminal.

[1169] Optionally, the processor 1210 is further configured to:

[1170] Determine that a plurality of downlink positioning reference signal resource sets of the TRP have an association relationship with a plurality of antenna ports of the TRP;

[1171] Determine that a plurality of downlink positioning reference signal resources in the downlink positioning reference signal resource set have an association relationship with a plurality of antenna ports of the TRP;

[1172] Determine that a plurality of repeated downlink positioning reference signal resources corresponding to the same downlink positioning reference signal resource identifier have an association relationship with a plurality of antenna ports of the TRP.

[1173] Optionally, the plurality of downlink positioning reference signal resource sets of the TRP have an association relationship with the plurality of antenna ports of the TRP, including one of the following:

[1174] Different downlink positioning reference signal resource sets are associated with different groups of TRP antenna ports;

[1175] At least one downlink positioning reference signal resource set is associated with 1 group of TRP antenna ports;

[1176] Wherein, 1 group of antenna ports of the TRP at least contains 1 TRP antenna port.

[1177] Optionally, the plurality of downlink positioning reference signal resources in the downlink positioning reference signal resource set have an association relationship with the plurality of antenna ports of the TRP, including one of the following:

[1178] In the downlink positioning reference signal resource set, different downlink positioning reference signal resources are associated with different TRP antenna ports;

[1179] In the downlink positioning reference signal resource set, at least one downlink positioning reference signal resource is associated with the same TRP antenna port;

[1180] Wherein, one downlink positioning reference signal resource is associated with 1 or more TRP antenna ports.

[1181] Optionally, the same downlink positioning reference signal resource identifier indicates that the corresponding multiple repeated downlink positioning reference signal resources have an association relationship with multiple antenna ports of a TRP, including one of the following:

[1182] Different repeated downlink positioning reference signal resources are associated with different antenna ports of a TRP.

[1183] At least one repeated downlink positioning reference signal resource is associated with the same antenna port of a TRP.

[1184] Optionally, the downlink positioning reference signal resource set, and / or the downlink positioning reference signal resource, and / or the repetition of the downlink positioning reference signal resource should be associated with all antenna ports of a TRP.

[1185] Optionally, the second information further includes a function indication of the downlink positioning reference signal resource set and / or the downlink positioning reference signal resource.

[1186] Optionally, the processor 1210 is further configured to:

[1187] Measure the channels of different ports and perform a codebook traversal process to obtain the best codebook and / or the best AOD angle matching the channel.

[1188] Optionally, the second information further includes at least one of the following:

[1189] An association relationship between the downlink positioning reference signal resource set and the antenna ports of a TRP;

[1190] An association relationship between the downlink positioning reference signal resource and the antenna ports of a TRP;

[1191] An association relationship between the repeated downlink positioning reference signal resource and the antenna ports of a TRP.

[1192] The embodiments of the present application also provide a network side device, including a processor and a communication interface, the processor is used for indicating third information to a location server, the third information is used for assisting the location server to perform positioning calculation; wherein the third information includes at least one of the following: a third association relationship, the third association relationship is used for indicating an association relationship between a downlink positioning reference signal and a third time error group TEG; a fourth association relationship, the fourth association relationship is used for indicating an association relationship between an uplink positioning measurement result and a fourth TEG; and / or, the processor is used for indicating second information to a terminal, wherein the second information is used for indicating that a downlink positioning reference signal resource set and / or a downlink positioning reference signal resource has an association relationship with an antenna port of a transmission and reception point TRP. The network side device embodiment is corresponding to the network side device method embodiment described above, and each implementation process and implementation manner of the method embodiment described above can be applied to the network side device embodiment, and the same technical effects can be achieved.

[1193] Alternatively, the processor is configured to acquire first information indicated by the terminal, the first information being used for assisting the position server or the base station in performing positioning calculation; wherein the first information comprises at least one of the following: a first association relationship, the first association relationship being used for indicating an 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 for indicating an association relationship between a downlink positioning measurement result and a second TEG; and / or the position server indicates second information to the terminal, wherein the second information is used for indicating an association relationship between a downlink positioning reference signal resource set and / or a downlink positioning reference signal resource and an antenna port of a transmission and reception point (TRP).

[1194] Specifically, the embodiment of the present application further provides a network side device. As shown in the Figure 13 network device 1300 includes an antenna 1301, a radio frequency device 1302, and a baseband device 1303. The antenna 1301 is connected to the radio frequency device 1302. In the uplink direction, the radio frequency device 1302 receives information through the antenna 1301 and sends the received information to the baseband device 1303 for processing. In the downlink direction, the baseband device 1303 processes the information to be sent and sends it to the radio frequency device 1302. The radio frequency device 1302 processes the received information and sends it out through the antenna 1301.

[1195] The above frequency band processing device can be located in the baseband device 1303. The method performed by the network side device in the above embodiment can be implemented in the baseband device 1303, which includes a processor 1304 and a memory 1305.

[1196] The baseband device 1303 may, for example, include at least one baseband board on which a plurality of chips are disposed, as shown in Figure 13 One of the chips is, for example, a processor 1304 connected to the memory 1305 to call programs in the memory 1305 and perform the operations of the network device shown in the above method embodiment.

[1197] The baseband device 1303 can also include a network interface 1306 for interacting with the radio frequency device 1302. The interface is, for example, a common public radio interface (CPRI).

[1198] Specifically, the network side device of the embodiment of the present application further includes instructions or programs stored on the memory 1305 and executable on the processor 1304, and the processor 1304 calls the instructions or programs in the memory 1305 to perform Figure 9 or Figure 10The method executed by each module shown and the same technical effect are achieved, and thus details are not described herein.

[1199] The embodiment of the present application further provides a readable storage medium, which has a program or instructions stored thereon, the program or instructions are executed by a processor to realize each process of the time error group indication method embodiment and achieve the same technical effect, and thus details are not described herein.

[1200] The processor is the processor in the terminal in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer readable memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, etc.

[1201] The embodiment of the present application further provides a chip, which includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used to run a program or instructions to realize each process of the time error group indication method embodiment and achieve the same technical effect, and thus details are not described herein.

[1202] It should be understood that the chip mentioned in the embodiment of the present application can also be referred to as a system chip, a system chip, a chip system or a system on chip, etc.

[1203] It should be noted that in this document, the term "comprising" or "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the present application is not limited to the order of functions shown or discussed, but can also include functions performed in a substantially simultaneous manner or in the opposite order, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted or combined. In addition, the features described with reference to some examples can be combined in other examples.

[1204] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned example methods can be realized by means of software and a necessary general hardware platform, and of course, can also be realized by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a computer software product in essence or in the form of a part that contributes to the prior art, which is stored in a storage medium (such as a ROM / RAM, a magnetic disc, an optical disc), and includes a plurality of instructions for causing a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in various embodiments of the present application.

[1205] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative and not restrictive. Those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A time error group indication method, characterized by, Comprising: The terminal indicates first information to the network side device; wherein, the first information is used to assist the network side device to carry out positioning calculation; Wherein, the first information includes a second association relationship, and the second association relationship is used to indicate the association relationship between the downlink positioning measurement result and the second time error group TEG; The terminal indicates first information to the network side device, comprising: In the case that the downlink positioning measurement result includes a downlink reference signal time difference DL-RSTD or a receive-transmit time difference Rx-Tx, or other types of downlink measurement results, for a target positioning measurement result, the terminal indicates the association relationship between the target positioning measurement result and N second TEGs; Wherein, the target positioning measurement result is a positioning measurement result obtained by the terminal measuring a target downlink positioning reference signal resource, N is a positive integer greater than or equal to 1, and N is obtained by at least one of protocol agreement, network indication and terminal selection; The target downlink positioning reference signal resource is one downlink positioning reference signal resource; The terminal indicates the association relationship between the target positioning measurement result and N second TEGs, comprising at least one of: The terminal indicates the path associated with the N second TEGs; The terminal indicates the receive beam index associated with the N second TEGs; The terminal indicates that the N second TEGs are obtained by multiple receive beam scanning or by simultaneously measuring the target downlink positioning reference signal resource; The terminal indicates the timestamp of the downlink positioning measurement result associated with the N second TEGs; The terminal indicates the time difference between the N second TEGs; The terminal indicates the position information associated with the N second TEGs inside the terminal; The terminal reports the downlink positioning measurement result associated with the N second TEGs; Indicate the association relationship between the target positioning measurement result and N second TEGs in the downlink positioning measurement results corresponding to different timestamps.

2. The time error group indication method of claim 1, wherein, Before the terminal indicates the first information to the network side device, further comprising: The terminal receives a first request message sent by the network side device, and the first request message is used to request the terminal to indicate the first information, wherein the number N of the second TEGs is contained in the first request message.

3. The time error group indication method of claim 1, wherein, The terminal indicates the association relationship between the target positioning measurement result and N second TEGs, comprising: In the case that a first preset condition is met, the terminal reports the association relationship between the target positioning measurement result and multiple second TEGs; Wherein, the first preset condition comprises at least one of: There are multiple second TEGs associated downlink positioning measurement results whose quality exceeds a first preset threshold; There are multiple second TEGs associated downlink positioning measurement results which are line of sight LOS measurement results, or the LOS probability of the downlink positioning measurement result is higher than a second preset threshold; When the terminal performs receive beam scanning, different receive beams are associated with different second TEGs, and the quality of the downlink positioning measurement results corresponding to multiple receive beams exceeds a third preset threshold.

4. The time error group indication method of claim 1, wherein, The terminal indicates the association relationship between the target positioning measurement result and N second TEGs, comprising: In a case where the terminal is configured with a quasi co-site (QCL) relationship of the target downlink positioning reference signal resource, the terminal indicates an association relationship between the target positioning measurement result and one second TEG.

5. The time error group indication method of any one of claims 1, 3-4, wherein, Further comprising: receiving fifth indication signaling sent by the network side device, the fifth indication signaling being used to instruct the terminal to measure the target downlink positioning reference signal resource in a Rx TEG sweeping manner.

6. The time error group indication method of claim 5, wherein The terminal needs to meet at least one of the following conditions when measuring the target downlink positioning reference signal resource in the Rx TEG sweeping manner: The network side device does not indicate the spatial QCL information of the target downlink positioning reference signal resource; The network side device indicates that the target downlink positioning reference signal resource is repeated.

7. The time error group indication method of claim 6, wherein The instruction for the terminal to measure the target downlink positioning reference signal resource in the Rx TEG sweeping manner includes at least one of the following: Instructing the terminal to measure the target downlink positioning reference signal resource once in the Rx TEG sweeping manner across M periods, where M is a positive integer, and M is obtained in at least one of the following manners: protocol agreement, network indication, or terminal selection; Instructing the terminal to sweep part of the Rx TEG, or instructing the terminal to sweep across part of the Rx TEG; Instructing the terminal to report downlink positioning measurement results associated with different Rx TEGs.

8. The time error group indication method of claim 7, wherein, The instruction for the terminal to measure the target downlink positioning reference signal resource once in the Rx TEG sweeping manner across M periods further includes at least one of the following: Indicating the number of Rx TEGs in the total Rx TEG sweeping; Indicating the number of Rx TEGs in the Rx TEG sweeping in each downlink positioning reference signal instance.

9. The time error group indication method of claim 5, wherein, Further comprising: The terminal sends reasons why it cannot perform Rx TEG sweeping according to the instructions of the network side device, or sends reasons why it cannot report downlink positioning measurement results.

10. The time error group indication method of claim 1, wherein, Further comprising: In a case where the terminal has indicated N second TEGs associated with the first downlink positioning reference signal resource and / or measurement results of the N second TEGs and / or multiple receive beam indexes, receiving sixth indication signaling sent by the network side device, the sixth indication signaling being used to instruct the terminal to use the first downlink positioning reference signal resource as a reference resource for a second downlink positioning reference signal resource; The terminal uses the N second TEGs or the multiple receive beam indexes associated with the first downlink positioning reference signal resource to receive the second downlink positioning reference signal resource.

11. The time error group indication method of claim 1, wherein, The first information includes a second association relationship, and the terminal indicates to the network side device that the first information includes: In a case where the downlink positioning measurement result contains a terminal receive transmission time difference (UE Rx-Tx time difference), the terminal performs one of the following: Indicating an association relationship between the downlink positioning measurement result and an Rx TEG and a Tx TEG; Indicating an association relationship between the downlink positioning measurement result and an Rx-Tx TEG; indicate an association relationship between the downlink positioning measurement result and the Rx TEG.

12. The time error group indication method of claim 1, wherein, Further comprising: The terminal indicates that the time error of the downlink positioning measurement result is compensated or not compensated.

13. The time error group indication method of claim 1, wherein, Before the terminal indicates the first information to the network side device, further comprising: Receiving 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 the downlink positioning reference signal.

14. The time error group indication method of claim 1, wherein, Before the terminal indicates the first information to the network side device, further comprising: Receiving the eighth indication signaling sent by the network side device, the eighth indication signaling is used to indicate the terminal to calculate and / or report the time difference value between the second TEG and / or compensate the error of the second TEG in the downlink positioning measurement result.

15. The time error group indication method of claim 1, wherein, Further comprising: The terminal reports terminal capability information to the network side device; The terminal capability information comprises one of the following: Calibration capability information; Rx TEG capability information; Tx TEG capability information; RxTx TEG capability information.

16. The time error group indication method of claim 15, wherein, The calibration capability information comprises at least one of the following: The terminal does not support the calibration of Rx timing error, Tx timing error and RxTx timing error; The terminal supports Rx timing error calibration; The terminal supports Tx timing error calibration; The terminal supports RxTx timing error calibration.

17. The time error group indication method of claim 15, wherein, The Rx TEG capability information comprises at least one of the following: The number of Rx TEGs supported by the terminal; The number of Rx TEGs that can be activated or have been activated by the terminal; The maximum number of Rx TEGs associated with the positioning measurement result of one downlink positioning reference signal resource or one downlink positioning reference signal resource at the same time.

18. The time error group indication method of claim 15, wherein, The Tx TEG capability information comprises at least one of the following: The number of Tx TEGs supported by the terminal; The number of Tx TEGs that can be activated or have been activated by the terminal; The number of Tx TEGs associated with the uplink positioning reference signal resource sent by the terminal.

19. The time error group indication method of claim 15, wherein, The RxTx TEG capability information comprises 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 by the terminal.

20. The time error group indication method of claim 1, wherein, The terminal receives the second information sent by the network side device; wherein the second information is used to assist the terminal and / or the network side device to perform positioning related calculation; the second information is used to indicate that the downlink positioning reference signal resource set and / or the downlink positioning reference signal resource has an association relationship with the antenna port of the transmission and reception point (TRP); After the terminal receives the second information sent by the network side device, one of the following is performed: The terminal determines that a plurality of downlink positioning reference signal resource sets of the TRP have an association relationship with a plurality of antenna ports of the TRP; The terminal determines that a plurality of downlink positioning reference signal resources in the downlink positioning reference signal resource set have an association relationship with a plurality of antenna ports of the TRP; The terminal determines that a plurality of repeated downlink positioning reference signal resources corresponding to the same downlink positioning reference signal resource identifier have an association relationship with a plurality of antenna ports of the TRP.

21. The time error group indication method of claim 20, wherein, The plurality of downlink positioning reference signal resource sets of the TRP have an association with a plurality of antenna ports of the TRP, including one of: 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; Wherein, the one group of TRP antenna ports contains at least one TRP antenna port.

22. The time error group indication method of claim 20, wherein, The plurality of downlink positioning reference signal resources in the downlink positioning reference signal resource set have an association with a plurality of antenna ports of the TRP, including one of: Different downlink positioning reference signal resources in the downlink positioning reference signal resource set are associated with different TRP antenna ports; At least one downlink positioning reference signal resource in the downlink positioning reference signal resource set is associated with the same TRP antenna port; Wherein, one downlink positioning reference signal resource is associated with one or more TRP antenna ports.

23. The time error group indication method of claim 20, wherein, The same downlink positioning reference signal resource identifies that a plurality of repeated downlink positioning reference signal resources have an association with a plurality of antenna ports of the TRP, including one of: Different repeated downlink positioning reference signal resources are associated with different TRP antenna ports; At least one repeated downlink positioning reference signal resource is associated with the same TRP antenna port.

24. The time error group indication method of claim 20, wherein, The downlink positioning reference signal resource set, and / or the downlink positioning reference signal resource, and / or the repetition of the downlink positioning reference signal resource should be associated with all TRP antenna ports.

25. The time error group indication method of claim 20, wherein, The second information further includes a function indication of the downlink positioning reference signal resource set and / or the downlink positioning reference signal resource.

26. The time error group indication method of claim 20, wherein, After the terminal receives the second information sent by the network side device, it further includes: The terminal measures the channels of different ports and performs a codebook traversal process to obtain the best codebook and / or the best angle of departure (AOD) angle matching the channel.

27. The time error group indication method of claim 20, wherein, The second information further includes at least one of: The association of the downlink positioning reference signal resource set with the antenna ports of the TRP; The association of the downlink positioning reference signal resource with the antenna ports of the TRP; The association of the repeated downlink positioning reference signal resource with the antenna ports of the TRP.

28. The time error group indication method of claim 1, wherein, The second TEG includes at least one of: Rx TEG, RxTx TEG. 29.A time error group indication method applied to a network side device, wherein the network side device is a location server, and the method comprises: It includes: The location server acquires the first information indicated by the terminal, and the first information is used to assist the location server or the base station in positioning calculation; Wherein, the first information includes: A second association relationship, the second association relationship is used to indicate the association relationship between the downlink positioning measurement result and the second TEG; The location server acquires the first information indicated by the terminal, including: In the case that the downlink positioning measurement result received by the location server includes a downlink reference signal time difference (DL-RSTD) or a receive-transmit time difference (Rx-Tx time difference) or other types of downlink measurement results, for the target positioning measurement result, the location server acquires the association relationship between the target positioning measurement result indicated by the terminal and the N second TEGs; The target positioning measurement result is a positioning measurement result obtained by the terminal measuring a target downlink positioning reference signal resource, N is a positive integer greater than or equal to 1, and N is obtained in at least one of the following manners: protocol agreement, network indication, and terminal selection; The target downlink positioning reference signal resource is one downlink positioning reference signal resource; The position server obtains an association relationship between the target positioning measurement result and N second TEGs, including at least one of the following: The position server obtains a path associated with the N second TEGs indicated by the terminal; The position server obtains a receive beam index associated with the N second TEGs indicated by the terminal; The position server obtains that the N second TEGs indicated by the terminal are obtained through multiple receive beam scans or are obtained through simultaneous measurement of the target downlink positioning reference signal resource; The position server obtains a timestamp of a downlink positioning measurement result associated with the N second TEGs indicated by the terminal; The position server obtains a time difference between the N second TEGs indicated by the terminal; The position server obtains position information associated with the N second TEGs inside the terminal indicated by the terminal; The position server obtains a downlink positioning measurement result associated with the N second TEGs reported by the terminal; The position server obtains an association relationship between the target positioning measurement result and N second TEGs indicated in downlink positioning measurement results corresponding to different timestamps.

30. The time error group indication method of claim 29, wherein, Before the position server obtains the first information indicated by the terminal, the method further includes: The position server sends a first request message to the terminal, and the first request message is used to request the terminal to indicate the first information, wherein the number N of the second TEGs is included in the first request message.

31. The time error group indication method of claim 29, wherein, Further comprising: The position server sends a fifth indication signaling to the terminal, and the fifth indication signaling is used to instruct the terminal to measure the target downlink positioning reference signal resource in an Rx TEG sweeping manner.

32. The time error group indication method of claim 31, wherein, Further comprising at least one of the following: The position server does not indicate spatial QCL information of the target downlink positioning reference signal resource; The position server indicates that the target downlink positioning reference signal resource is repeated.

33. The time error group indication method of claim 32, wherein, The indication that the terminal measures the downlink positioning reference signal resource in an Rx TEG sweeping manner includes at least one of the following: Indicating that the terminal measures the target downlink positioning reference signal resource in an Rx TEG sweeping manner once across M periods, wherein M is a positive integer, and M is obtained in at least one of the following manners: protocol agreement, network indication, or terminal selection; Indicating that the terminal scans part of the Rx TEGs or indicating that the terminal scans across part of the Rx TEGs; Indicating that the terminal reports downlink positioning measurement results associated with different Rx TEGs.

34. The time error group indication method of claim 33, wherein, The indication that the terminal measures the downlink positioning reference signal resource in an Rx TEG sweeping manner once across M periods further includes at least one of the following: Indicating the number of Rx TEGs in the total Rx TEG sweeping; An indication of a number of Rx TEGs sweeping in each downlink positioning reference signal instance.

35. The time error group indication method of claim 29, wherein, Further comprising: In a case where the terminal has indicated N second TEGs associated with the first downlink positioning reference signal resource and / or measurement results of the N second TEGs and / or a plurality of receive beam indexes, sending sixth indication signaling to the terminal; The sixth indication signaling is used to instruct the terminal to take the first downlink positioning reference signal resource as a reference resource of a second downlink positioning reference signal resource.

36. The time error group indication method of claim 29, wherein, The first information includes a second association relationship, and the position server acquires the first information indicated by the terminal, including: In a case where the downlink positioning measurement result received by the position server contains a terminal reception transmission time difference (UE Rx-Tx time difference), the base station performs one of the following: Obtaining an association relationship between the downlink positioning measurement result and an Rx TEG and a Tx TEG; Obtaining an association relationship between the downlink positioning measurement result and an RxTx TEG; Obtaining an association relationship between the downlink positioning measurement result and an Rx TEG.

37. The time error group indication method of claim 29, wherein, Further comprising: The position server receives information indicated by the terminal on whether the time error of the downlink positioning measurement result is compensated or not.

38. The time error group indication method of claim 29, wherein, Further comprising: Sending seventh indication signaling to the terminal, the seventh indication signaling being used to instruct the terminal to measure a number of TEGs that can be associated when measuring a downlink positioning reference signal.

39. The time error group indication method of claim 29, wherein, Further comprising: Sending eighth indication signaling to the terminal, the eighth indication signaling being used to instruct the terminal to calculate and / or report a time difference value between second TEGs and / or compensate for errors of the second TEGs in a downlink positioning measurement result.

40. The time error group indication method of claim 29, wherein, Further comprising: Receiving 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.

41. The time error group indication method of claim 29, wherein, Further comprising: Obtaining third information indicated by the base station, the third information being used to assist the position server in performing positioning calculation; The third information includes at least one of the following: A third association relationship, the third association relationship being used to indicate an 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 an association relationship between an uplink positioning measurement result and a fourth TEG; An uplink positioning measurement result.

42. The time error set indication method of claim 29, wherein, Further comprising at least one of the following: Obtaining terminal capability information; Sending 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.

43. The time error group indication method of claim 29, wherein, The second TEG includes at least one of the following: an Rx TEG, an RxTx TEG.

44. A time error group indication apparatus, comprising: Comprising: A first indication unit, configured to indicate first information to a network side device; wherein the first information is used to assist the network side device in performing positioning calculation; The first information includes a second association relationship, the second association relationship being used to indicate an association relationship between a downlink positioning measurement result and a second TEG; The terminal indicates first information to the network side device, including: In the case that the downlink positioning measurement result comprises a downlink reference signal time difference (DL-RSTD) or a receive-transmit time difference (Rx-Tx time difference) or other types of downlink measurement results, for a target positioning measurement result, the terminal indicates an association relationship between the target positioning measurement result and N second TEGs; wherein the target positioning measurement result is a positioning measurement result obtained by the terminal performing measurement on a target downlink positioning reference signal resource, N is a positive integer greater than or equal to 1, and N is obtained in at least one of the following manners: protocol agreement, network indication, and terminal selection; the target downlink positioning reference signal resource is one downlink positioning reference signal resource; the terminal indicating the association relationship between the target positioning measurement result and the N second TEGs comprises at least one of the following: the terminal indicating a path associated with the N second TEGs; the terminal indicating a receive beam index associated with the N second TEGs; the terminal indicating that the N second TEGs are obtained through multiple receive beam scanning or through simultaneous measurement on the target downlink positioning reference signal resource; the terminal indicating a timestamp of a downlink positioning measurement result associated with the N second TEGs; the terminal indicating a time difference between the N second TEGs; the terminal indicating position information associated with the N second TEGs inside the terminal; the terminal reporting a downlink positioning measurement result associated with the N second TEGs; indicating the association relationship between the target positioning measurement result and the N second TEGs in downlink positioning measurement results corresponding to different timestamps.

45. A time error group indication apparatus, comprising: comprise: a second acquisition unit, configured to acquire first information indicated by a terminal, wherein the first information is used to assist a location server in performing positioning calculation; wherein the first information comprises: a second association relationship, wherein the second association relationship is used to indicate an association relationship between a downlink positioning measurement result and a second TEG; the location server acquiring first information indicated by a terminal comprises: in the case that downlink positioning measurement results received by the location server comprise a downlink reference signal time difference (DL-RSTD) or a receive-transmit time difference (Rx-Tx time difference) or other types of downlink measurement results, for a target positioning measurement result, the location server acquires an association relationship between the target positioning measurement result and N second TEGs indicated by the terminal; wherein the target positioning measurement result is a positioning measurement result obtained by the terminal performing measurement on a target downlink positioning reference signal resource, N is a positive integer greater than or equal to 1, and N is obtained in at least one of the following manners: protocol agreement, network indication, and terminal selection; the target downlink positioning reference signal resource is one downlink positioning reference signal resource; the location server acquiring the association relationship between the target positioning measurement result and the N second TEGs comprises at least one of the following: the location server acquiring a path associated with the N second TEGs indicated by the terminal; the location server acquiring a receive beam index associated with the N second TEGs indicated by the terminal; The position server obtains the N second TEGs indicated by the terminal through a plurality of receiving beam scanning or through simultaneously measuring the target downlink positioning reference signal resource; The position server obtains the time stamp of the downlink positioning measurement result associated with the N second TEGs indicated by the terminal; The position server obtains the time difference between the N second TEGs indicated by the terminal; The position server obtains the position information associated inside the terminal of the N second TEGs indicated by the terminal; The position server obtains the downlink positioning measurement result associated with the N second TEGs reported by the terminal; The position server obtains the association relationship between the target positioning measurement result and the N second TEGs indicated in the downlink positioning measurement result corresponding to different time stamps.

46. A terminal, characterized by A computer program product, comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processor to perform the steps of any one of claims 1-28.

47. A network-side device, comprising: A computer program product, comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processor to perform the steps of any one of claims 29-43.

48. A readable storage medium, characterized by, A computer program product, comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processor to perform the steps of any one of claims 1-28 or any one of claims 29-43.

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