Positioning measurement information determination method and apparatus, synchronization error transmission method and apparatus

Abstract

The present disclosure relates to a positioning measurement information determination method, comprising: obtaining synchronization errors between multiple transmission-reception points, and determining positioning measurement information according to the synchronization errors. According to the present disclosure, the synchronization errors between the transmission-reception points can be obtained, and then the positioning measurement information can be determined according to the synchronization errors, so as to eliminate the deviation of the positioning measurement information caused by the synchronization errors. For example, after obtaining the initial positioning measurement information, the initial positioning measurement information can be adjusted according to the synchronization errors, and then the position can be determined according to the adjusted positioning measurement information, which is beneficial to ensuring the accuracy of the positioning.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and in particular, to a positioning measurement information determination method, a synchronization error sending method, a positioning measurement information determination apparatus, a synchronization error sending apparatus, an electronic device, and a computer readable storage medium. BACKGROUND

[0002] In 5G communication, multiple positioning technologies are introduced for positioning a terminal, such as uplink positioning technology, downlink positioning technology, and downlink and uplink combined positioning technology.

[0003] For downlink positioning, a terminal can receive reference signals sent by different transmission and reception points (TRPs), determine the time when each reference signal is received, and then determine the reference signal time difference (RSTD) according to the time, and then perform positioning according to the reference signal time difference.

[0004] For uplink positioning, different transmission and reception points can receive reference signals sent by a terminal, determine the time when each transmission and reception point receives the reference signal, and then determine the relative time of arrival (RTOA) of the reference signal according to the time, and then perform positioning according to the relative time of arrival.

[0005] It can be seen that whether it is downlink positioning or uplink positioning, multiple transmission and reception points need to cooperate, and then multiple transmission and reception points need to keep synchronization, otherwise the positioning accuracy will be affected. However, due to various reasons, there will be more or less some synchronization errors between different transmission and reception points, resulting in different transmission and reception points being out of synchronization, and then affecting the positioning accuracy. SUMMARY

[0006] Therefore, embodiments of the present disclosure provide a positioning measurement information determination method, a synchronization error sending method, a positioning measurement information determination apparatus, a synchronization error sending apparatus, an electronic device, and a computer readable storage medium to solve the technical problems in the related art.

[0007] According to a first aspect of embodiments of the present disclosure, a positioning measurement information determination method is provided, which is suitable for a first device, and the method comprises: obtaining synchronization errors between multiple transmission and reception points; and determining positioning measurement information according to the synchronization errors.

[0008] According to a second aspect of the embodiments of the present disclosure, a synchronization error sending method is provided, which is suitable for a second device, and the method comprises: determining synchronization errors between multiple transmission and reception points; and sending the synchronization errors to a first device, so that the first device determines positioning measurement information according to the synchronization errors.

[0009] According to a third aspect of the embodiments of the present disclosure, a synchronization error sending method is provided, which is suitable for a second device, and the method comprises: determining synchronization errors between multiple transmission and reception points; and sending the synchronization errors to a first device, so that the first device determines positioning measurement information according to the synchronization errors.

[0010] According to a fourth aspect of the embodiments of the present disclosure, a synchronization error sending device is provided, which is suitable for a second device, and the device comprises: an error determination module configured to determine synchronization errors between multiple transmission and reception points; and an error sending module configured to send the synchronization errors to a first device, so that the first device determines positioning measurement information according to the synchronization errors.

[0011] According to a fifth aspect of the embodiments of the present disclosure, an electronic device is provided, which comprises: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to execute the above-mentioned positioning measurement information determination method and / or the above-mentioned synchronization error sending method.

[0012] According to a sixth aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided, which stores a computer program, and the program is executed by a processor to implement the steps of the above-mentioned positioning measurement information determination method and / or the above-mentioned synchronization error sending method.

[0013] According to the embodiments of the present disclosure, the synchronization errors between the transmission and reception points can be obtained, and then the positioning measurement information is determined according to the synchronization errors, so as to eliminate the deviation of the positioning measurement information caused by the synchronization errors, for example, after obtaining the initial positioning measurement information, the initial positioning measurement information can be adjusted according to the synchronization errors, and then the position is determined according to the adjusted positioning measurement information, which is beneficial to ensuring the accuracy of the positioning. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Figure 1 is a schematic flow chart of a positioning measurement information determination method according to an embodiment of the present disclosure.

[0016] Figure 2 is a schematic flowchart of another method for determining positioning measurement information according to an embodiment of the present disclosure.

[0017] Figure 3 is a schematic flowchart of yet another method for determining positioning measurement information according to an embodiment of the present disclosure.

[0018] Figure 4 is a schematic flowchart of yet another method for determining positioning measurement information according to an embodiment of the present disclosure.

[0019] Figure 5 is a schematic flowchart of yet another method for determining positioning measurement information according to an embodiment of the present disclosure.

[0020] Figure 6 is a schematic flowchart of a method for transmitting synchronization error according to an embodiment of the present disclosure.

[0021] Figure 7 is a schematic flowchart of another method for transmitting synchronization error according to an embodiment of the present disclosure.

[0022] Figure 8 is a schematic flowchart of a method for determining position information according to an embodiment of the present disclosure.

[0023] Figure 9 is a schematic flowchart of another method for determining position information according to an embodiment of the present disclosure.

[0024] Figure 10 is a schematic block diagram of an apparatus for determining positioning measurement information according to an embodiment of the present disclosure.

[0025] Figure 11 is a schematic block diagram of an apparatus for transmitting synchronization error according to an embodiment of the present disclosure.

[0026] Figure 12 is a schematic block diagram of an apparatus for transmitting synchronization error according to an embodiment of the present disclosure.

[0027] Figure 13 is a schematic block diagram of an apparatus for determining positioning measurement information according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0028] With reference to the accompanying drawings, the technical solutions in the embodiments of the present disclosure will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, but not all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present disclosure.

[0029] Those skilled in the art can understand that the technical solutions of the embodiments can be implemented alone or together with any other technical solutions in the embodiments of the present disclosure, and the embodiments of the present disclosure do not make any limitation in this regard.

[0030] Figure 1 FIG. 1 is a schematic flowchart of a positioning measurement information determination method according to an embodiment of the present disclosure. The positioning measurement information determination method shown in the embodiment can be applied to a first device, which can be a terminal or a core network, and specifically can be an Access and Mobility Management Function (AMF) or a Location Management Function (LMF) in the core network.

[0031] The terminal includes but is not limited to a mobile phone, a tablet computer, a wearable device, a sensor, an Internet of Things device, and the like. The terminal can communicate with a base station and a core network as a user equipment, the base station includes but is not limited to a 4G base station, a 5G base station, a 6G base station, and the like in a communication system, and the core network includes but is not limited to a 4G core network, a 5G core network, a 6G core network, and the like in a communication system.

[0032] As shown in FIG. 1, the positioning measurement information determination method can include the following steps. Figure 1

[0033] In step S101, a synchronization error between a plurality of transmission and reception points is obtained, wherein the transmission and reception point can be a base station.

[0034] In step S102, the positioning measurement information is determined according to the synchronization error.

[0035] In one embodiment, the synchronization error between a plurality of transmission and reception points used in the positioning process can be obtained, and specifically the synchronization error between each two transmission and reception points in the plurality of transmission and reception points can be obtained.

[0036] ​For example, the positioning procedure requires 3 transmission-reception points (TRPs) to participate, which are TRP1, TRP2 and TRP3 respectively, and the obtained synchronization errors include: synchronization error between TRP1 and TRP2, error1, synchronization error between TRP1 and TRP3, error2, and synchronization error between TRP2 and TRP3, error3.

[0037] In an embodiment, the synchronization error can be caused by various reasons, such as the clock asynchronization between different transmission-reception points, or the different hardware processing time between different transmission-reception points.

[0038] In an embodiment, the synchronization error can be obtained from a second device, wherein the first device and the second device can be the same device, i.e. the first device can determine the synchronization error autonomously. The first device and the second device can also be different devices, for example, the first device is a core network, and the second device is a terminal, so that the terminal determines the synchronization error, and then sends the determined synchronization error to the core network; for example, the first device is a core network, and the second device is a base station, such as a base station where multiple transmission-reception points are located, so that the base station determines the synchronization error, and then sends the determined synchronization error to the core network.

[0039] Of course, the first device and the second device are not limited to the above-mentioned embodiments, and can be flexibly adjusted according to specific circumstances. In addition, the way in which the second device determines the synchronization error is described in subsequent embodiments.

[0040] In an embodiment, the positioning measurement information can be positioning procedure information or positioning result information. The positioning result information can be location information, and the positioning procedure information can be reference signal time difference (RSTD) for downlink positioning, or relative time of arrival (RTOA) for uplink positioning.

[0041] According to embodiments of the present disclosure, the synchronization error between transmission-reception points can be obtained, and then the positioning measurement information can be determined according to the synchronization error, so as to eliminate the deviation of the positioning measurement information caused by the synchronization error. For example, after obtaining the initial positioning measurement information (i.e. the positioning measurement information without adjustment by the synchronization error), the initial positioning measurement information can be adjusted according to the synchronization error, and then the location can be determined according to the adjusted positioning measurement information, which is beneficial to ensuring the accuracy of positioning.

[0042] Figure 2 is another schematic flowchart of a positioning measurement information determination method according to an embodiment of the present disclosure. As shown in Figure 2 In some embodiments, the first device is a terminal, and the obtaining of the synchronization error between the multiple transmission-reception points includes:

[0043] In step S201, the synchronization error sent by the core network is received.

[0044] In one embodiment, the first device can be a terminal, and the synchronization error can be sent to the terminal by the core network, wherein the synchronization error can be determined by a base station and then sent to the core network, and then sent to the terminal by the core network.

[0045] In one embodiment, the receiving the synchronization error sent by the core network comprises:

[0046] The positioning assistance information and / or the request location information sent by the core network are received, and the synchronization error is obtained from the positioning assistance information and / or the request location information.

[0047] In one embodiment, in the case that the core network sends the synchronization error to the terminal, the core network can send the synchronization error to the terminal when sending information to the terminal in the positioning process.

[0048] For example, the core network can send the terminal the positioning assistance information LPP Provide Assistance Data, and the core network can carry the synchronization error in the positioning assistance information and send it to the terminal.

[0049] For example, the core network can send the terminal the request location information LPP Request Location Information, and the core network can carry the synchronization error in the request location information and send it to the terminal.

[0050] Wherein, LPP refers to LTE (Long Term Evolution) positioning protocol (LTE Positioning Protocol).

[0051] Figure 3 is another schematic flow chart of a method for determining positioning measurement information according to an embodiment of the present disclosure. As shown in some embodiments, the first device is a terminal, and the obtaining the synchronization error between the plurality of transmission reception points comprises: Figure 3

[0052] In step S301, the synchronization error sent by the base station is received.

[0053] In one embodiment, the first device can be a terminal, and the synchronization error can be sent to the terminal by the core network, wherein the synchronization error can be determined by a base station and then sent to the core network, and then sent to the terminal by the core network.

[0054] In one embodiment, the receiving the synchronization error sent by the core network comprises:

[0055] ​receive the synchronization error sent by the base station.

[0056] In an embodiment, in the case that the base station sends the synchronization error to the terminal, the base station can send the synchronization error to the terminal in the positioning system information. The positioning system information can be broadcasted by the base station, and the positioning system information can carry the synchronization error and the positioning assistance information.

[0057] In an embodiment, in the case that the base station sends the synchronization error to the terminal, the base station can send the synchronization error to the terminal in the Radio Resource Control (RRC) information.

[0058] Figure 4 is a schematic flowchart of still another method for determining positioning measurement information according to an embodiment of the present disclosure. As shown in Figure 4 In some embodiments, the first device is a core network, and the obtaining of the synchronization error between the multiple transmission and reception points comprises:

[0059] In step S401, the synchronization error sent by the base station is received.

[0060] In an embodiment, the first device can be a core network, and the synchronization error can be sent by the base station to the core network, for example, the base station sends the synchronization error to the core network in an NRPPa (NR Positioning Protocol A) message. The synchronization error can be determined by the base station and sent to the core network by the base station.

[0061] Figure 5 is a schematic flowchart of still another method for determining positioning measurement information according to an embodiment of the present disclosure. As shown in Figure 5 In some embodiments, the first device is a core network, and the obtaining of the synchronization error between the multiple transmission and reception points comprises:

[0062] In step S501, the synchronization error sent by the terminal is received.

[0063] In an embodiment, the first device can be a core network, and the synchronization error can be sent by the terminal to the core network, for example, the terminal sends the synchronization error to the core network in a positioning information LPP Provide LocationInformation. The synchronization error is determined by the base station, and the base station first sends the synchronization error to the terminal, and then the terminal sends the synchronization error to the core network.

[0064] In an embodiment, the positioning measurement information is downlink positioning measurement information, and the first device is a terminal and / or a core network. In an embodiment, the positioning measurement information is downlink positioning measurement information, and the first device is a terminal and / or a core network.

[0065] In an embodiment, the initial positioning measurement information is determined by the terminal in the case that the positioning measurement information is downlink positioning measurement information.

[0066] For example, in the case that the terminal determines the positioning measurement information according to the synchronization error, the terminal can determine the time difference of arrival of the positioning reference signals of different TRPs, i.e., the reference signal time difference RSTD, then adjust the reference signal time difference according to the synchronization error, and then send the adjusted reference signal time difference to the core network; if the terminal further determines the position information according to the reference signal time difference, then the position information can be adjusted according to the synchronization error, and then the adjusted position information is sent to the core network.

[0067] For example, in the case that the core network determines the positioning measurement information according to the synchronization error, after the terminal determines the initial positioning measurement information, the terminal can send the initial positioning measurement information to the core network, and the core network adjusts the initial positioning measurement information according to the synchronization error to obtain the adjusted positioning measurement information. The terminal can determine the reference signal time difference, and then send the reference signal time difference to the core network, and the core network can adjust the reference signal time difference according to the synchronization error, and then determine the position information according to the adjusted reference signal time difference; if the terminal further determines the position information according to the reference signal time difference, and then sends the position information to the core network, the core network can adjust the position information according to the synchronization error, and then determine the position of the terminal according to the adjusted position information.

[0068] The following takes the first transmission and reception point TRP1 and the second transmission and reception point TRP2 as an example to illustrate the operation of determining the positioning measurement information according to the synchronization error in downlink positioning.

[0069] In an embodiment, the plurality of transmission and reception points at least includes a first transmission and reception point and a second transmission and reception point, the synchronization error is the synchronization error between the first transmission and reception point and the second transmission and reception point, and the positioning measurement information is the time difference between the time when the terminal receives the positioning reference signal of the first transmission and reception point and the time when the terminal receives the positioning reference signal of the second transmission and reception point.

[0070] The determining the positioning measurement information according to the synchronization error includes:

[0071] Adjusting the time difference according to the synchronization error.

[0072] In an embodiment, for a first transmission reception point TRP1 and a second transmission reception point TRP2, a synchronization error between the first transmission reception point TRP1 and the second transmission reception point TRP2 is error1, a time difference between a time at which the terminal receives a positioning reference signal of the first transmission reception point TRP1 and a time at which the terminal receives a positioning reference signal of the second transmission reception point TRP2 is RSTD, then the time difference can be adjusted according to the synchronization error to eliminate the deviation in RSTD caused by error1, for example, RSTD minus error1 is taken as an adjusted RSTD, and then the position information is determined according to the adjusted RSTD, which is beneficial to ensuring the accuracy of positioning.

[0073] In an embodiment, the positioning measurement information is uplink positioning measurement information, and the first device is a core network.

[0074] In an embodiment, in the case that the positioning measurement information is uplink positioning measurement information, the initial positioning measurement information is generally determined by a base station.

[0075] For example, in the case that the core network determines the positioning measurement information according to the synchronization error, after the base station determines the initial positioning measurement information, the base station can send the initial positioning measurement information to the core network, and the core network adjusts the initial positioning measurement information according to the synchronization error to obtain adjusted positioning measurement information. The base station can determine a relative time of arrival, and then send the relative time of arrival to the core network, and the core network can adjust the relative time of arrival according to the synchronization error, and then determine the position information according to the adjusted relative time of arrival; if the base station further determines the position information according to the relative time of arrival, and then sends the position information to the core network, the core network can adjust the position information according to the synchronization error, and then determine the position of the terminal according to the adjusted position information.

[0076] The following takes the first transmission reception point TRP1 and the second transmission reception point TRP2 as an example to exemplarily illustrate the operation of determining the positioning measurement information according to the synchronization error in uplink positioning.

[0077] In an embodiment, the plurality of transmission reception points at least include a first transmission reception point and a second transmission reception point, the synchronization error is a synchronization error between the first transmission reception point and the second transmission reception point, and the positioning measurement information includes a second time at which the second transmission reception point receives a channel sounding reference signal of the terminal, a first time at which the first transmission reception point receives the channel sounding reference signal of the terminal.

[0078] The determining the positioning measurement information according to the synchronization error includes:

[0079] Adjusting the first time and / or the second time according to the synchronization error.

[0080] In one embodiment, for the first transmit / receive point TRP1 and the second transmit / receive point TRP2, the synchronization error between the first transmit / receive point TRP1 and the second transmit / receive point TRP2 is error1, the first time the first transmit / receive point receives the channel sounding reference signal of the terminal is RTOA1, and the second time the second transmit / receive point receives the channel sounding reference signal of the terminal is RTOA2. Then, RTOA1 and / or RTOA2 can be adjusted according to the synchronization error.

[0081] One approach is to adjust RTOA1 based on the synchronization error, for example, by subtracting error1 from RTOA1 to obtain the adjusted RTOA1. Then, the location information can be determined based on RTOA2 and the adjusted RTOA1, which helps to ensure the accuracy of positioning.

[0082] Alternatively, RTOA2 can be adjusted only based on the synchronization error. For example, RTOA2 can be increased by error1 to obtain the adjusted RTOA2. Then, the location information can be determined based on RTOA1 and the adjusted RTOA2, which helps to ensure the accuracy of positioning.

[0083] Furthermore, both RTOA2 and RTOA1 can be adjusted based on the synchronization error. For example, error1 can be split into two parts, errorX and errorY. RTOA1 can be reduced by errorX to obtain the adjusted RTOA1, and RTOA2 can be increased by errorY to obtain the adjusted RTOA2. The position information can then be determined based on the adjusted RTOA1 and adjusted RTOA2, which helps to ensure the accuracy of positioning.

[0084] Figure 6 This is a schematic flowchart illustrating a synchronization error transmission method according to an embodiment of the present disclosure. The synchronization error transmission method shown in this embodiment can be applied to a second device, which can be a base station or a core network, specifically an Access and Mobility Management Function (AMF) or a Location Management Function (LMF) in the core network.

[0085] The base station and the core network can communicate with the terminal that is the user equipment. The base station includes, but is not limited to, base stations in communication systems such as 4G base stations, 5G base stations, and 6G base stations. The core network includes, but is not limited to, the core network in communication systems such as 4G core network, 5G core network, and 6G core network.

[0086] like Figure 6 As shown, the method for determining positioning measurement information may include the following steps:

[0087] In step S601, the synchronization error between multiple transmitting and receiving points is determined;

[0088] In step S602, the synchronization error is sent to the first device so that the first device can determine the positioning measurement information based on the synchronization error.

[0089] In one embodiment, the synchronization error between multiple transmit / receive points used in the positioning process can be determined, specifically the synchronization error between every two transmit / receive points.

[0090] For example, if the positioning process requires the participation of three transmitting and receiving points (TRPs), namely TRP1, TRP2 and TRP3, then the determined synchronization errors include: the synchronization error error1 between TRP1 and TRP2, the synchronization error error2 between TRP1 and TRP3, and the synchronization error error3 between TRP2 and TRP3.

[0091] In one embodiment, synchronization errors can be caused by various factors, such as clock asynchrony between different transmitting and receiving points, or differences in hardware processing time between different transmitting and receiving points.

[0092] In one embodiment, the first device and the second device can be the same device, meaning the first device can autonomously determine the synchronization error. Alternatively, the first device and the second device can be different devices. For example, if the first device is the core network and the second device is a terminal, the synchronization error can be determined by the terminal, which then sends the determined synchronization error to the core network. Another example is if the first device is the core network and the second device is a base station, such as a base station containing multiple transmitting and receiving points. In this case, the synchronization error can be determined by the base station, which then sends the determined synchronization error to the core network.

[0093] In one embodiment, by determining the synchronization error between the transmitting and receiving points and sending the determined synchronization error to the first device, the first device can determine the positioning measurement information based on the synchronization error, thereby eliminating the deviation in the positioning measurement information caused by the synchronization error. For example, after obtaining the initial positioning measurement information, the initial positioning measurement information can be adjusted based on the synchronization error, and then the position can be determined based on the adjusted positioning measurement information, which helps to ensure the accuracy of positioning.

[0094] In one embodiment, the second device is a core network, the first device is a terminal, and sending the synchronization error to the first device includes:

[0095] The system sends positioning assistance information and / or location request information to the terminal, wherein the positioning assistance information and / or location request information carries the synchronization error.

[0096] In one embodiment, when the core network sends a synchronization error to the terminal, the core network can send the synchronization error to the terminal while sending information to the terminal during the positioning process.

[0097] For example, if the core network can send Location Assistance Data (LPP) to the terminal, then the core network can carry the synchronization error in the location assistance data and send it to the terminal.

[0098] For example, if the core network can send Request Location Information (LPP) to the terminal, then the core network can carry the synchronization error in the LPP and send it to the terminal.

[0099] In one embodiment, the second device is a base station, the first device is a terminal, and sending the synchronization error to the first device includes:

[0100] The system sends positioning system information and / or radio resource control information to the terminal, wherein the positioning system information and / or radio resource control information carries the synchronization error.

[0101] In one embodiment, when a base station sends a synchronization error to a terminal, the base station can send the synchronization error along with positioning system information. This positioning system information can be broadcast by the base station and may include positioning assistance information in addition to the synchronization error.

[0102] In one embodiment, when a base station sends a synchronization error to a terminal, the base station can send the synchronization error to the terminal in the form of Radio Resource Control (RRC) information.

[0103] In one embodiment, the second device is a base station, and the first device is the core network. The synchronization error can be sent from the base station to the core network, for example, by the base station carrying the synchronization error in an NRPPa (NR Positioning Protocol A) message. The synchronization error can be determined by the base station and sent to the core network by the base station.

[0104] In one embodiment, the second device is a terminal, and the first device is the core network. The synchronization error can be sent from the terminal to the core network, for example, by the terminal carrying the synchronization error in the location information (LPP) provided by the location information provider (Location Information) and sending it to the core network. Alternatively, the synchronization error can be determined by the base station, which first sends the synchronization error to the terminal, and then the terminal sends it to the core network.

[0105] The following mainly focuses on the first transmit / receive point TRP1 and the second transmit / receive point TRP2 among multiple transmit / receive points, and describes several methods for determining synchronization error.

[0106] Figure 7 This is a schematic flowchart illustrating another synchronization error transmission method according to embodiments of the present disclosure. Figure 7 As shown, in some embodiments, the plurality of transmitting and receiving points includes at least a first transmitting and receiving point and a second transmitting and receiving point, and determining the synchronization error among the plurality of transmitting and receiving points includes:

[0107] In step S701, the first round-trip time (RTT) between the first transmitting and receiving point and the terminal and the second round-trip time (RTT) between the second transmitting and receiving point and the second terminal are determined.

[0108] In step S702, the time difference between the terminal receiving the positioning reference signal from the first transmitting and receiving point and receiving the positioning reference signal from the second transmitting and receiving point is obtained;

[0109] In step S703, the synchronization error between the first transmitting and receiving point and the second transmitting and receiving point is determined based on the time difference, the first round-trip delay, and the second round-trip delay.

[0110] In one embodiment, a first round-trip time (RTT1) between the first transmitting / receiving point and the terminal and a second round-trip time (RTT2) between the second transmitting / receiving point and the second terminal can be determined first.

[0111] For different transmitting and receiving points, the method for determining the round-trip time delay between them and the terminal can be the same. Taking the first transmitting and receiving point TRP1 as an example, TRP1 sends a downlink reference signal to the terminal. After receiving the downlink reference signal, the terminal sends an uplink reference signal to TRP1. The time when TRP1 sends the downlink reference signal is t1, the time when the terminal receives the downlink reference signal is t2, the time when it sends the uplink reference signal is t3, and the time when TRP1 receives the downlink reference signal is t4.

[0112] The duration from t2 to t3, t3-t2, can be understood as the internal processing time of the terminal. The duration from t1 to t4, t4-t1, includes the transmission time of the downlink signal from TRP1 to the terminal, the internal processing time of the terminal, and the transmission time of the uplink reference signal from the terminal to TRP1. Therefore, subtracting t3-t2 from t4-t1 leaves the transmission time of the downlink signal from TRP1 to the terminal and the transmission time of the uplink reference signal from the terminal to TRP1, which is the first round-trip time (RTT1). RTT2 can be calculated in a similar way.

[0113] It should be noted that the above method of calculating round-trip delay based on the transmission and reception time of the reference signal is only an example, and other methods can also be selected to calculate round-trip delay.

[0114] On the other hand, the time difference RSTD between the terminal receiving the positioning reference signal from the first transmitting / receiving point and receiving the positioning reference signal from the second transmitting / receiving point can also be determined. Then, the synchronization error = RSTD - 1 / 2 * (RTT1 - RTT2) can be calculated based on RSTD, RTT1, and RTT2.

[0115] In some embodiments, the plurality of transmitting and receiving points includes at least a first transmitting and receiving point and a second transmitting and receiving point, and determining the synchronization error among the plurality of transmitting and receiving points includes:

[0116] Based on the inherent parameter information of the first transmitting and receiving point and the inherent parameter information of the second transmitting and receiving point, the synchronization error between the first transmitting and receiving point and the second transmitting and receiving point is determined.

[0117] In one embodiment, the transmitting and receiving points can pre-store their own specific inherent parameter information, such as clock and hardware processing time. The base station where the transmitting and receiving points are located can determine the synchronization error between the transmitting and receiving points based on the differences in the inherent parameter information between the transmitting and receiving points. The transmitting and receiving points can also send the inherent parameter information to the core network, and the core network can determine the synchronization error between the transmitting and receiving points based on the differences in the inherent parameter information between the transmitting and receiving points.

[0118] For example, for any two different transmit / receive points, the first transmit / receive point and the second transmit / receive point, the clocks of the two transmit / receive points are the same, but the hardware processing times are different. The hardware processing time of the first transmit / receive point is T1, and the hardware processing time of the second transmit / receive point is T2. T1 is greater than T2. ​​Then the synchronization error between the first transmit / receive point and the second transmit / receive point can be equal to T1-T2.

[0119] It should be noted that the first and second transmitting and receiving points in the above embodiments do not refer to a specific transmitting and receiving point, but rather to any two different transmitting and receiving points among the multiple transmitting and receiving points used in the positioning process.

[0120] Figure 8 This is a schematic flowchart illustrating a method for determining location information according to embodiments of the present disclosure. Figure 8 As shown, taking the following line positioning as an example, the process of determining location information may include the following steps:

[0121] Step S801: The core network sends LPP Request Capabilities information to the terminal.

[0122] Step S802: The terminal sends LPP Provide Capabilities information to the core network.

[0123] Step S803: The core network sends Location Assistance Information (LPP) to the terminal.

[0124] Step S804: The core network sends a Request LocationInformation (LPP) message to the terminal.

[0125] The synchronization error can be carried in the positioning assistance information or in the requested location information;

[0126] Step S805: The terminal sends a positioning measurement instruction to the base station to request the base station to configure a positioning measurement gap for the terminal.

[0127] Step S806: The base station sends the positioning measurement gap configuration to the terminal;

[0128] In step S807, the terminal measures the positioning reference signal in the base station in this configuration to obtain initial positioning measurement information, such as RSTD or location information, and then adjusts the initial positioning measurement information through synchronization error;

[0129] In step S808, the terminal sends the adjusted positioning measurement information to the core network.

[0130] Figure 9 This is a schematic flowchart illustrating another method for determining location information according to embodiments of the present disclosure. Figure 9 As shown, taking upstream positioning as an example, the process of determining location information may include the following steps:

[0131] Step S901: The core network sends LPP Request Capabilities information to the terminal.

[0132] Step S902: The terminal sends LPP Provide Capabilities information to the core network.

[0133] Step S903: The core network sends a Positioning Information Request (NRPPa) to the base station.

[0134] Step S904: The base station determines the configuration of the Sounding Reference Signal (SRS) and sends it to the terminal;

[0135] Step S905: The base station sends a positioning information response (NRPPa Positioning InformationResponse) to the core network.

[0136] Step S906: The core network sends a UE SRSactivation (Request UE SRSactivation) request to the base station.

[0137] In step S907, after activating the terminal to send the probe reference signal, the base station sends a terminal probe reference signal activation response (NRPPa UE SRS activation Response) to the core network.

[0138] Step S908: The core network sends a Measurement Request (NRPPa) to the base station.

[0139] In step S909, the base station (specifically, the transmitting and receiving point in the base station) measures the probe reference signal sent by the terminal to obtain initial positioning measurement information, such as RTOA or location information, and then adjusts the initial positioning measurement information through synchronization error;

[0140] In step S910, the base station sends the adjusted positioning measurement information to the core network, or the base station sends the measurement information and synchronization error to the core network.

[0141] It should be noted that the term "base station" in all embodiments of this disclosure can refer to a single transmitting / receiving point, or it can refer to a device containing multiple transmitting / receiving points. The specific meaning can be determined based on the context. Furthermore, multiple transmitting / receiving points can be located at the same base station or at different base stations; for example, the transmitting / receiving point may be the base station itself. The configuration can be tailored to specific needs.

[0142] Corresponding to the aforementioned embodiments of the positioning measurement information determination method and the synchronization error transmission method, this disclosure also provides embodiments of the positioning measurement information determination device and the synchronization error transmission device.

[0143] Figure 10 This is a schematic block diagram illustrating a positioning measurement information determination device according to an embodiment of the present disclosure. The positioning measurement information determination device shown in this embodiment can be applied to a first device, which can be a terminal or a core network, specifically an Access and Mobility Management Function (AMF) or a Location Management Function (LMF) in the core network.

[0144] The terminals include, but are not limited to, electronic devices such as mobile phones, tablets, wearable devices, sensors, and IoT devices. The terminals can function as user equipment to communicate with base stations and core networks. The base stations include, but are not limited to, base stations in communication systems such as 4G, 5G, and 6G base stations. The core networks include, but are not limited to, core networks in communication systems such as 4G, 5G, and 6G core networks.

[0145] like Figure 10 As shown, the positioning measurement information determination device may include:

[0146] The error acquisition module 1001 is configured to acquire the synchronization error between multiple transmitting and receiving points;

[0147] The information determination module 1002 is configured to determine positioning measurement information based on the synchronization error.

[0148] In one embodiment, the first device is a terminal, and the error acquisition module is configured to receive the synchronization error sent by the core network.

[0149] In one embodiment, the error acquisition module is configured to receive positioning assistance information and / or requested location information sent by the core network, and to acquire the synchronization error from the positioning assistance information and / or requested location information.

[0150] In one embodiment, the first device is a terminal, and the error acquisition module is configured to receive the synchronization error sent by the base station.

[0151] In one embodiment, the error acquisition module is configured to receive positioning system information and / or radio resource control information sent by the base station, and acquire the synchronization error from the positioning system information and / or radio resource control information.

[0152] In one embodiment, the first device is a core network, and the error acquisition module is configured to receive the synchronization error sent by the base station.

[0153] In one embodiment, the first device is a core network, and the error acquisition module is configured to receive the synchronization error sent by the terminal.

[0154] In one embodiment, the positioning measurement information is downlink positioning measurement information, and the first device is a terminal and / or a core network.

[0155] In one embodiment, the plurality of transmitting and receiving points include at least a first transmitting and receiving point and a second transmitting and receiving point, the synchronization error is the synchronization error between the first transmitting and receiving point and the second transmitting and receiving point, and the positioning measurement information is the time difference between the terminal receiving the positioning reference signal from the first transmitting and receiving point and receiving the positioning reference signal from the second transmitting and receiving point.

[0156] The information determination module is configured to adjust the time difference based on the synchronization error.

[0157] In one embodiment, the positioning measurement information is uplink positioning measurement information, and the first device is the core network.

[0158] In one embodiment, the plurality of transmit and receive points include at least a first transmit and receive point and a second transmit and receive point, the synchronization error is the synchronization error between the first transmit and receive point and the second transmit and receive point, and the positioning measurement information includes the first time when the first transmit and receive point receives the channel sounding reference signal of the terminal and the second time when the second transmit and receive point receives the channel sounding reference signal of the terminal.

[0159] The information determination module is configured to adjust the first time and / or the second time based on the synchronization error.

[0160] Figure 11 This is a schematic block diagram illustrating a synchronization error transmission device according to an embodiment of the present disclosure. The synchronization error transmission device shown in this embodiment can be applied to a second device, which can be a base station or a core network, specifically an Access and Mobility Management Function (AMF) or a Location Management Function (LMF) in the core network.

[0161] The base station and the core network can communicate with the terminal that is the user equipment. The base station includes, but is not limited to, base stations in communication systems such as 4G base stations, 5G base stations, and 6G base stations. The core network includes, but is not limited to, the core network in communication systems such as 4G core network, 5G core network, and 6G core network.

[0162] like Figure 11 As shown, the positioning measurement information determination device may include:

[0163] Error determination module 1101 is configured to determine the synchronization error between multiple transmitting and receiving points;

[0164] Error transmission module 1102 is configured to send the synchronization error to a first device so that the first device can determine positioning measurement information based on the synchronization error.

[0165] In one embodiment, the second device is a core network, the first device is a terminal, and the error sending module is configured to send positioning assistance information and / or request location information to the terminal, wherein the positioning assistance information and / or request location information carries the synchronization error.

[0166] In one embodiment, the second device is a base station, the first device is a terminal, and the error sending module is configured to send positioning system information and / or radio resource control information to the terminal, wherein the positioning system information and / or radio resource control information carries the synchronization error.

[0167] In one embodiment, the second device is a base station, and the first device is a core network.

[0168] In one embodiment, the second device is a terminal, and the first device is a core network.

[0169] In one embodiment, the plurality of transmit and receive points include at least a first transmit and receive point and a second transmit and receive point, and the error determination module is configured to determine a first round-trip time delay between the first transmit and receive point and the terminal and a second round-trip time delay between the second transmit and receive point and the second terminal.

[0170] The time difference between the terminal receiving the positioning reference signal from the first transmitting and receiving point and receiving the positioning reference signal from the second transmitting and receiving point is obtained.

[0171] Based on the time difference, the first round-trip delay, and the second round-trip delay, the synchronization error between the first transmitting and receiving point and the second transmitting and receiving point is determined.

[0172] In one embodiment, the plurality of transmit and receive points include at least a first transmit and receive point and a second transmit and receive point, and the error determination module is configured to determine the synchronization error between the first transmit and receive point and the second transmit and receive point based on the inherent parameter information of the first transmit and receive point and the inherent parameter information of the second transmit and receive point.

[0173] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments of the relevant methods, and will not be elaborated upon here.

[0174] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to in the description of the method embodiments. The device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0175] Embodiments of this disclosure also provide an electronic device, comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to execute the positioning measurement information determination method described in any of the above embodiments, and / or the synchronization error transmission method described in any of the above embodiments.

[0176] Embodiments of this disclosure also provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the positioning measurement information determination method and / or the synchronization error transmission method described in any of the above embodiments.

[0177] like Figure 12 As shown, Figure 12 This is a schematic block diagram illustrating an apparatus 1200 for transmitting synchronization errors according to an embodiment of the present disclosure. The apparatus 1200 can be provided as a base station. (Refer to...) Figure 12 The device 1200 includes a processing component 1222, a wireless transmit / receive component 1224, an antenna component 1226, and a signal processing section specific to the wireless interface. The processing component 1222 may further include one or more processors. One of the processors in the processing component 1222 may be configured to implement the synchronization error transmission method described in any of the above embodiments.

[0178] Figure 13 This is a schematic block diagram illustrating a device 1300 for determining positioning measurement information according to embodiments of the present disclosure. For example, device 1300 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0179] Reference Figure 13 The device 1300 may include one or more of the following components: a processing component 1302, a memory 1304, a power supply component 1306, a multimedia component 1308, an audio component 1310, an input / output (I / O) interface 1312, a sensor component 1314, and a communication component 1316.

[0180] Processing component 1302 typically controls the overall operation of device 1300, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 1302 may include one or more processors 1320 to execute instructions to complete all or part of the steps of the positioning measurement information determination method described above. Furthermore, processing component 1302 may include one or more modules to facilitate interaction between processing component 1302 and other components. For example, processing component 1302 may include a multimedia module to facilitate interaction between multimedia component 1308 and processing component 1302.

[0181] Memory 1304 is configured to store various types of data to support the operation of device 1300. Examples of such data include instructions for any application or method operating on device 1300, contact data, phonebook data, messages, pictures, videos, etc. Memory 1304 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0182] Power supply component 1306 provides power to various components of device 1300. Power supply component 1306 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 1300.

[0183] Multimedia component 1308 includes a screen that provides an output interface between the device 1300 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 1308 includes a front-facing camera and / or a rear-facing camera. When the device 1300 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0184] Audio component 1310 is configured to output and / or input audio signals. For example, audio component 1310 includes a microphone (MIC) configured to receive external audio signals when device 1300 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1304 or transmitted via communication component 1316. In some embodiments, audio component 1310 also includes a speaker for outputting audio signals.

[0185] I / O interface 1312 provides an interface between processing component 1302 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0186] Sensor assembly 1314 includes one or more sensors for providing status assessments of various aspects of device 1300. For example, sensor assembly 1314 may detect the on / off state of device 1300, the relative positioning of components such as the display and keypad of device 1300, changes in the position of device 1300 or a component of device 1300, the presence or absence of user contact with device 1300, the orientation or acceleration / deceleration of device 1300, and temperature changes of device 1300. Sensor assembly 1314 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 1314 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 1314 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0187] Communication component 1316 is configured to facilitate wired or wireless communication between device 1300 and other devices. Device 1300 can access wireless networks based on communication standards, such as WiFi, 2G or 3G, 4G LTE, 5G NR, or combinations thereof. In one exemplary embodiment, communication component 1316 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 1316 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0188] In an exemplary embodiment, the apparatus 1300 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above-described positioning measurement information determination method.

[0189] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 1304 including instructions, which can be executed by a processor 1320 of the device 1300 to complete the positioning measurement information determination method described above. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0190] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0191] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

[0192] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0193] The methods and apparatus provided in the embodiments of this disclosure have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this disclosure. The descriptions of the embodiments above are only for the purpose of helping to understand the methods and core ideas of this disclosure. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this disclosure. Therefore, the content of this specification should not be construed as a limitation of this disclosure.

Claims

1. A method for determining positioning measurement information, characterized in that, Applicable to user equipment (UE), the method includes: The system receives positioning assistance information and requested location information sent by the core network, wherein a synchronization error is carried in the positioning assistance information and / or in the requested location information, and the synchronization error is the synchronization error between different transmit and receive points (TRPs), where the TRP is a base station or located at a base station. Send positioning measurement indication information to the base station, wherein the positioning measurement indication information is used to request the base station to configure a positioning measurement gap for the UE; Receive the positioning measurement gap configuration sent by the base station; Initial positioning measurement information is obtained by configuring a positioning reference signal according to the positioning measurement gap, wherein the initial positioning measurement information includes the arrival time difference of positioning reference signals emitted by different TRPs to the UE; The initial positioning measurement information is adjusted based on the synchronization error to determine the adjusted positioning measurement information; The adjusted positioning measurement information is sent to the core network, wherein the adjusted positioning measurement information is used by the core network to determine the location of the UE.

2. A method for determining positioning measurement information, characterized in that, Applicable to the core network, the method includes: Send positioning assistance information and request location information to user equipment (UE), wherein the synchronization error is carried in the positioning assistance information and / or in the request location information; The system receives adjusted positioning measurement information sent by the UE, wherein the adjusted positioning measurement information is used by the core network to determine the location of the UE, the adjusted positioning measurement information is obtained by the UE adjusting the initial positioning measurement information according to the synchronization error, the initial positioning measurement information is obtained by the UE configuring a positioning reference signal according to the positioning measurement gap sent by the base station, and the initial positioning measurement information includes the arrival time difference of positioning reference signals from different transmit / receive points (TRPs).

3. A positioning measurement information determination device, characterized in that, Applicable to user equipment (UE), the device is configured to: The system receives positioning assistance information and requested location information sent by the core network, wherein a synchronization error is carried in the positioning assistance information and / or in the requested location information, and the synchronization error is the synchronization error between different transmit and receive points (TRPs), where the TRP is a base station or located at a base station. Send positioning measurement indication information to the base station, wherein the positioning measurement indication information is used to request the base station to configure a positioning measurement gap for the UE; Receive the positioning measurement gap configuration sent by the base station; Initial positioning measurement information is obtained by configuring a positioning reference signal according to the positioning measurement gap, wherein the initial positioning measurement information includes the arrival time difference of positioning reference signals emitted by different TRPs to the UE; The initial positioning measurement information is adjusted based on the synchronization error to determine the adjusted positioning measurement information; The adjusted positioning measurement information is sent to the core network, wherein the adjusted positioning measurement information is used by the core network to determine the location of the UE.

4. A positioning measurement information determination device, characterized in that, For use in the core network, the device is configured as follows: Send positioning assistance information and request location information to the UE, wherein the synchronization error is carried in the positioning assistance information and / or in the request location information, the synchronization error is the synchronization error between different transmit and receive points (TRPs), and the TRP is a base station or located at a base station; The system receives adjusted positioning measurement information sent by the UE, wherein the adjusted positioning measurement information is used by the core network to determine the location of the UE, the adjusted positioning measurement information is obtained by the UE adjusting the initial positioning measurement information according to the synchronization error, the initial positioning measurement information is obtained by the UE configuring a positioning reference signal according to the positioning measurement gap sent by the base station, and the initial positioning measurement information includes the arrival time difference of the positioning reference signals sent by different TRPs to the UE.

5. An electronic device, characterized in that, include: processor; Memory used to store processor-executable instructions; The processor is configured to execute the positioning measurement information determination method of claim 1 and / or the positioning measurement information determination method of claim 2.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the steps in the positioning measurement information determination method of claim 1 and / or the positioning measurement information determination method of claim 2.

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