Wireless communication method and device for positioning, equipment and storage medium

Abstract

The invention discloses a wireless communication method and device for positioning, equipment and a storage medium, and relates to the field of positioning. The method comprises: a terminal device receiving first configuration information, the first configuration information being used for determining M downlink positioning signal resources and / or N uplink positioning signal resources, the M downlink positioning signal resources being capable of corresponding to service satellites at different moments, and the N uplink positioning signal resources being capable of corresponding to service satellites at different moments, and the terminal equipment reports the first measurement information based on the first configuration information, thereby supporting the positioning service in the NTN scene.

Description

Wireless communication method, device, equipment and storage medium for positioning Technical Field

[0001] The present application relates to the field of positioning, and in particular to a wireless communication method, apparatus, device and storage medium for positioning. Background Art

[0002] The fifth generation mobile communication technology (5G) New Radio (NR) introduces a variety of positioning technologies to achieve the positioning of terminal devices.

[0003] In related technologies, terminal devices can be located using uplink positioning technologies or downlink positioning technologies. When using uplink positioning technologies, the terminal device sends an uplink positioning signal to the access network device. The access network device measures the uplink positioning signal and sends the measurement information to the core network device, which then performs the positioning calculation. When using downlink positioning technologies, the terminal device receives and measures the downlink positioning signal sent by the access network device. The terminal device then performs the positioning calculation itself or sends the measurement information to the core network device, which then performs the positioning calculation.

[0004] However, the above technologies are all designed based on terrestrial networks (TNs) and are not applicable to non-terrestrial networks (NTNs).

[0005] Summary of the Invention

[0006] The embodiments of the present application provide a wireless communication method, apparatus, device, and storage medium for positioning. The technical solution is as follows:

[0007] According to one aspect of the present application, a wireless communication method for positioning is provided, the method being performed by a terminal device, the method comprising:

[0008] Receive first configuration information, where the first configuration information is used to determine M downlink positioning signal resources and / or N uplink positioning signal resources, where M and N are positive integers;

[0009] First measurement information is reported based on the first configuration information, where the first measurement information includes at least one of a first time difference and first time information.

[0010] According to one aspect of the present application, a wireless communication method for positioning is provided, the method being performed by a network device, the method comprising:

[0011] Obtaining first configuration information, where the first configuration information is used to determine M downlink positioning signal resources and / or N uplink positioning signal resources, where M and N are positive integers;

[0012] Second measurement information is reported based on the first configuration information, where the second measurement information includes at least one of a second time difference and second time information.

[0013] According to another aspect of the present application, a wireless communication device for positioning is provided, the device comprising:

[0014] A receiving module, configured to receive first configuration information, where the first configuration information is used to determine M downlink positioning signal resources and / or N uplink positioning signal resources, where M and N are positive integers;

[0015] A sending module is configured to report first measurement information based on the first configuration information, where the first measurement information includes at least one of a first time difference and first time information.

[0016] According to another aspect of the present application, a wireless communication device for positioning is provided, the device comprising:

[0017] an acquisition module, configured to acquire first configuration information, where the first configuration information is used to determine M downlink positioning signal resources and / or N uplink positioning signal resources, where M and N are positive integers;

[0018] The sending module is configured to report second measurement information based on the first configuration information, where the second measurement information includes at least one of a second time difference and second time information.

[0019] According to another aspect of the present application, there is provided a positioning system applied to an NTN network including a service satellite, the positioning system comprising: a service satellite, a terminal device, and a network device; the positioning system performs positioning based on M downlink positioning signal resources and / or N uplink positioning signal resources, where M and N are positive integers;

[0020] The M downlink positioning signal resources and / or the N uplink positioning signal resources meet at least one of the following conditions:

[0021] The M downlink positioning signal resources have a one-to-one correspondence with the service satellite positions at M moments;

[0022] The M downlink positioning signal resources have a one-to-one correspondence with the M virtual TRPs;

[0023] The service satellite positions at the M moments have a one-to-one correspondence with the M virtual TRPs;

[0024] The N uplink positioning signal resources have a one-to-one correspondence with the service satellite positions at N moments;

[0025] The N uplink positioning signal resources have a one-to-one correspondence with the N virtual TRPs;

[0026] The service satellite positions at the N moments have a one-to-one correspondence with the N virtual TRPs;

[0027] When M is an integer greater than 1, the M moments are different moments; when N is an integer greater than 1, the N moments are different moments.

[0028] According to another aspect of the present application, a terminal device is provided, comprising: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the wireless communication method for positioning as described in the above aspects.

[0029] According to another aspect of the present application, a network device is provided, comprising: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the wireless communication method for positioning as described in the above aspects.

[0030] According to another aspect of the present application, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores executable instructions, and the executable instructions are loaded and executed by a processor to implement the wireless communication method for positioning as described in the above aspects.

[0031] According to another aspect of the present application, a chip is provided, which includes a programmable logic circuit and / or program instructions. When the chip runs on a communication device, it is used to implement the wireless communication method for positioning described in the above aspects.

[0032] According to another aspect of the present application, a computer program product or computer program is provided, wherein the computer program product or computer program includes computer instructions, wherein the computer instructions are stored in a computer-readable storage medium, and a processor reads and executes the computer instructions from the computer-readable storage medium, so that a communication device performs the wireless communication method for positioning described in the above aspects.

[0033] The technical solution provided by this application has at least the following beneficial effects:

[0034] The terminal device is positioned through M downlink positioning signal resources and / or N uplink positioning signal resources. The M downlink positioning signal resources can have a one-to-one correspondence with the service satellite positions at M moments, and the N downlink positioning signal resources can have a one-to-one correspondence with the service satellite positions at N moments, thereby realizing the positioning of the terminal device in the NTN system. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0036] FIG1 is a schematic diagram of a communication system in the related art;

[0037] FIG2 is a schematic diagram of a communication system in the related art;

[0038] FIG3 is a schematic diagram of a communication system in the related art;

[0039] FIG4 is a schematic diagram of a transparent transmission load NTN scenario in the related art;

[0040] FIG5 is a schematic diagram of a regenerative load NTN scenario in the related art;

[0041] FIG6 is a timing diagram of a Multi-RTT positioning method in related art;

[0042] FIG7 is a timing diagram of a Multi-RTT positioning method in the related art;

[0043] FIG8 is a schematic diagram showing the principle of a Multi-RTT positioning method in the related art;

[0044] FIG9 is a timing diagram of a Multi-RTT positioning method in the related art;

[0045] FIG10 is a schematic diagram of a positioning system based on a virtual TRP provided by an exemplary embodiment of the present application;

[0046] FIG11 is a flowchart of a wireless communication method for positioning provided by another exemplary embodiment of the present application;

[0047] FIG12 is a flowchart of a wireless communication method for positioning provided by another exemplary embodiment of the present application;

[0048] FIG13 is a timing diagram of a wireless communication method for positioning provided by another exemplary embodiment of the present application;

[0049] FIG14 is a timing diagram of a wireless communication method for positioning provided by another exemplary embodiment of the present application;

[0050] FIG15 is a schematic diagram of a scenario of a wireless communication method for positioning provided by another exemplary embodiment of the present application;

[0051] FIG16 is a timing diagram of a wireless communication method for positioning provided by another exemplary embodiment of the present application;

[0052] FIG17 is a structural block diagram of a wireless communication device for positioning provided by an exemplary embodiment of the present application;

[0053] FIG18 is a structural block diagram of a wireless communication device for positioning provided by another exemplary embodiment of the present application;

[0054] FIG19 is a structural block diagram of a communication device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0055] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0056] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0057] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0058] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining."

[0059] First, the relevant technologies involved in the embodiments of this application are introduced:

[0060] Network scenario:

[0061] Communication system scenarios include terrestrial networks (TN) and non-terrestrial networks (NTN). NTNs typically use satellite communications to provide communication services to terrestrial users. Currently, NTN systems include New Radio (NR)-NTN and Internet of Things (IoT)-NTN systems.

[0062] For example, Figure 1 is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application. As shown in Figure 1, the communication system may include a network device 110, which may be a device that communicates with a terminal device 120 (or also referred to as a communication terminal device or terminal). Network device 110 can provide communication coverage for a specific geographic area and can communicate with terminal devices located within the coverage area.

[0063] FIG1 exemplarily shows a network device and two terminal devices. In some embodiments, the communication system may include multiple network devices and each network device may include another number of terminal devices within its coverage area, which is not limited in this application.

[0064] For example, FIG2 is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application. As shown in FIG2 , the communication system includes a terminal device 1101 and a satellite 1102, and wireless communication can be performed between the terminal device 1101 and the satellite 1102. The network formed between the terminal device 1101 and the satellite 1102 can also be referred to as an NTN. In the architecture of the communication system 200 shown in FIG2 , the satellite 1102 can have the function of a base station, and the terminal device 1101 and the satellite 1102 can communicate directly. Under the architecture of the communication system 200, the satellite 1102 can be referred to as a network device. In some embodiments, the communication system 200 may include multiple network devices 1102, and each network device 1102 may include other number of terminal devices within its coverage area, which is not limited in the present application.

[0065] For example, FIG3 is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application. As shown in FIG3 , the communication system includes a terminal device 1201, a satellite 1202, and a base station 1203. Wireless communication can be performed between the terminal device 1201 and the satellite 1202, and communication can be performed between the satellite 1202 and the base station 1203. The network formed between the terminal device 1201, the satellite 1202, and the base station 1203 can also be referred to as an NTN. In the architecture of the communication system 300 shown in FIG3 , the satellite 1202 may not have the function of a base station, and the communication between the terminal device 1201 and the base station 1203 needs to be relayed through the satellite 1202. Under the architecture of the communication system 300, the base station 1203 can be referred to as a network device. In some embodiments, the communication system 300 may include multiple network devices 1203, and each network device 1203 may include other number of terminal devices within its coverage area, which is not limited in the present application.

[0066] To ensure satellite coverage and increase the capacity of the entire satellite communication system, satellites use multiple beams to cover the ground. A single satellite can form dozens or even hundreds of beams to cover the ground; a single satellite beam can cover a ground area with a diameter of tens to hundreds of kilometers. There are at least two NTN scenarios: transparent payload NTN, as shown in Figure 4, and regenerative payload NTN, as shown in Figure 5. NTN networks include the following network elements:

[0067] One or more gateways to connect satellites to the terrestrial public network.

[0068] Feeder link: The link used for communication between the gateway and the satellite.

[0069] Service link: The link used for communication between the terminal and the satellite.

[0070] Satellites: Based on the functions they provide, they can be divided into two types: transparent payload and regenerative payload.

[0071] Transparent payload: Provides only wireless frequency filtering, frequency conversion, and amplification. It transparently forwards signals without changing the waveform of the forwarded signal.

[0072] Regenerative payload: In addition to providing radio frequency filtering, frequency conversion, and amplification, it can also provide demodulation / decoding, routing / conversion, and encoding / modulation functions. It has some or all of the functions of a base station.

[0073] Inter-Satellite Links (ISL): exist in regenerative load scenarios.

[0074] Synchronization in NR-NTN and IoT-NTN systems:

[0075] In an NTN system, network equipment needs to send synchronization assistance information to terminal devices. This information is used to assist the terminal devices in achieving time domain synchronization and / or frequency domain synchronization. The information indicates at least one of the following: serving satellite ephemeris information, public timing (TA) value parameters, reference time indication information (epoch time, used to determine time t0), and target timer duration.

[0076] The terminal device completes the corresponding time domain synchronization and / or frequency domain synchronization based on the synchronization assistance information and its own Global Navigation Satellite System (GNSS) capability. The terminal device can obtain at least one of the following information based on its GNSS capability: the location of the terminal device, the time reference, and the frequency reference. Moreover, based on the above information, as well as the information obtained based on the synchronization assistance information, the terminal device can obtain timing and / or frequency deviation, and apply timing advance compensation and / or frequency deviation adjustment in an idle state, an inactive state, or a connected state.

[0077] Specifically, the TA value when the terminal device sends an uplink channel or uplink signal is:

[0078]

[0079] Among them, N TA is the TA value indicated by the network device, such as the TA value issued by the TA command; if the uplink channel or uplink signal includes the Physical Random Access Channel (PRACH) or MsgA (Message A in the two-step random access process), then N TA The value is 0.

[0080] N TA,offset The value is the same as that in the related art, for example, it is determined based on the coexistence of Long Term Evolution (LTE) or NR and the network deployment frequency band.

[0081] It is obtained based on the common timing TA value parameters configured by the high layer (such as at least one of the common timing value, the common timing value offset value, and the rate of change of the common timing value offset value); if the common timing TA value parameters are not configured, then The value is 0. In some cases, Also called the feeder link TA value.

[0082] It is calculated based on the terminal device location and the service satellite ephemeris information configured by the high-level configuration; if the service satellite ephemeris information is not configured, then The value is 0. In some cases, Also called the service link TA value.

[0083] T c Indicates the sampling time interval unit, T c =1 / (480*1000*4096).

[0084] Since the satellite is moving, the synchronization assistance information will change with time. For example, the service satellite ephemeris information will change with time. The public timing TA value parameters may include: public timing value, public timing value offset value (for example, the first-order derivative of the public timing value), the rate of change of the public timing value offset value (for example, the second-order derivative of the public timing value), etc. The terminal device can determine the service satellite ephemeris information at different times and determine the public TA value at different times based on the synchronization assistance information, thereby obtaining the TA value at different times.

[0085] That is to say, in the NTN system, the TA values ​​corresponding to different times may vary greatly.

[0086] Positioning technology in NR system:

[0087] In the NR system, supported positioning methods include the downlink time difference of arrival (DL-TDOA) positioning method, the uplink time difference of arrival (UL-TDOA) positioning method, and the multi-round trip time (Multi-RTT) positioning method. The present application can be applied to methods including but not limited to the above methods, for example, the present application can be applied to the multi-RTT positioning method.

[0088] The basic principle of the Multi-RTT positioning method is to correspond the round-trip time measurement result to the distance d between the terminal device and the network node TRP i. i , thereby estimating the terminal device's location information. The Multi-RTT positioning method is based on the bidirectional transmission of positioning signals (or positioning reference signals) between the terminal device and the network node TRP. This method requires the following two steps: the network node TRP sends a downlink positioning signal, which the terminal device measures; and the terminal device sends an uplink positioning signal, which the network node TRP measures.

[0089] 6 and 7, the terminal device receives the downlink positioning signal at the time t i,3 and the time t at which the uplink positioning signal is sent i,0 Calculate the UE Rx-Tx time difference (UE Rx-Tx time difference), also known as the first time difference. represents the receiving timing error of the terminal device receiving the downlink positioning signal from the network node TRP i (i=1,2,…,M), Indicates the timing error of the terminal device sending the uplink positioning signal to the network node TRP i:

[0090]

[0091] The network node TRP i calculates the gNB Rx-Tx time difference based on the time it receives the uplink positioning signal and the time it sends the downlink positioning signal, where: represents the receiving timing error of the network node TRP i (i=1,2,…,M), It represents the sending timing error of network node TRP i:

[0092]

[0093] Add equations (1) and (2) together, and assume that the receiving timing error and sending timing error of network node TRP i are the same The receiving timing error and sending timing error between the terminal device and the network node TRP i are the same So we can get the RTT estimate:

[0094]

[0095] Considering that the uplink or downlink transmission distance between the network node TRP i and the terminal device is d i , then formula (3) can be written as

[0096]

[0097] Each equation in the equation group (4) can be seen to be centered on TRP i and Therefore, the physical meaning of the Multi-RTT positioning method can be intuitively understood using Figure 8: Draw a corresponding circle with each network node TRP i as the center, and the intersection of these circles is the terminal device position estimated by the Multi-RTT positioning method. iDue to factors such as the circle's rotation, the circles usually do not intersect perfectly at one point, but rather within a smaller range.

[0098] Exemplarily, the above-mentioned network device is connected to a Location Management Function (LMF) network element located in the core network, and may also include other physical devices. Optionally, the LMF network element includes a location server (location server), and the location server can be implemented as any of the following: a Location Management Function (LMF), an Enhanced Serving Mobile Location Centre (E-SMLC), a Secure User Plane Location (SUPL), and a Secure User Plane Location Platform (SUPL SLP).

[0099] In the Multi-RTT positioning method, the terminal device estimates the UE Rx-Tx time difference based on the reception of downlink positioning signals and the transmission of uplink positioning signals, and reports the UE Rx-Tx time difference corresponding to each network device (or virtual TRP) to the LMF. The network device estimates the gNB Rx-Tx time difference based on the reception of uplink Sounding Reference Signals (SRS) and the transmission of downlink Positioning Reference Signals (PRS), and reports this gNB Rx-Tx time difference to the LMF. Based on the UE Rx-Tx time difference and the gNB Rx-Tx time difference of each TRP, the LMF can determine the distance between each TRP and the UE. Then, using the location information of each TRP, the LMF can determine the terminal device's location information.

[0100] The UE Rx-Tx time difference is defined as T UE-RX -T UE-TX , where T UE-RX T is the reception timing of the terminal device receiving the downlink subframe #i from a TRP, which is determined based on the first arrival path of the received signal; UE-TXThe terminal device sends the timing of uplink subframe #j to the TRP. Uplink subframe #j is the subframe closest in time to downlink subframe #i. In other words, the UERx-Tx time difference is obtained based on the timing of the actual signal reception subframe and the timing of the transmission subframe closest to the reception subframe. It should be noted that multiple downlink PRS resources can be used to determine the first arrival path corresponding to the starting position of downlink subframe #i.

[0101] The gNBRx-Tx time difference is defined as T gNB-RX -T gNB-TX , where T gNB-RX T is the reception timing of the network device from receiving the uplink subframe #i, where the uplink subframe #i is an uplink subframe including the SRS associated with the terminal device, and the reception timing is determined according to the first arrival path of the received signal; gNB-TX The gNB Rx-Tx time difference is the timing of the network device sending downlink subframe #j to the terminal device. Downlink subframe #j is the subframe closest in time to uplink subframe #i. In other words, the gNB Rx-Tx time difference is derived based on the timing of the actual signal reception subframe and the timing of the transmission subframe closest to the reception subframe. It should be noted that multiple SRS resources used for positioning can be used to determine the starting position of uplink subframe #i containing the SRS. Taking Figure 9 as an example, the gNB Rx-Tx time difference is approximately 0; the UE Rx-Tx time difference is approximately 0.5 subframes; and the RTT is approximately 0.5 subframes.

[0102] In TN networks, the round-trip propagation delay of positioning signals is small, typically no longer than one subframe. Therefore, the measurement information reported by terminal devices can be limited to a time difference within one subframe. However, in NTN networks, due to the larger signal propagation delay, the assumption that the RTT delay in TN networks will not exceed one subframe no longer applies.

[0103] It's important to note that signal transmission involves multiple paths. This is because signals may encounter various obstacles during transmission, causing them to undergo refraction and reflection in addition to the direct path. Consequently, the signal reaches the receiver via multiple different paths, and each path takes a different time to arrive. The first path refers to the path that arrives earliest.

[0104] In the NTN network, in order to use the Multi-RTT positioning method to estimate the location of the terminal device, the position of the service satellite at different times can be equivalent to different TRPs, which can be called virtual TRPs in some embodiments of the present application, that is, each virtual TRP corresponds to the position of the service satellite at a time. The position of the terminal device is estimated based on the relative distance between the position of the service satellite and the terminal device at different times. Schematically, the position of the service satellite at time ti is regarded as TRPi, and the distance between TRPi and the terminal device is di, where i = 0, 1, 2, ..., M-1.

[0105] That is, the embodiment of the present application introduces a TRP group (in some embodiments, it may also be referred to as a virtual TRP group). Each TRP group includes TRPs corresponding to at least two different moments (or service satellite positions corresponding to two different moments), and the reception of downlink positioning signals belonging to the same TRP group has a corresponding reception timing error that is small enough (for example, less than a threshold or within a specific error range or can be ignored), and / or, the transmission of uplink positioning signals belonging to the same TRP group has a corresponding transmission timing error that is small enough (for example, less than a threshold or within a specific error range or can be ignored), and / or, the measurement results belonging to the same TRP group have a corresponding measurement timing error that is small enough (for example, less than a threshold or within a specific error range or can be ignored), thereby obtaining a relatively high positioning accuracy. Alternatively, the TRP group corresponds to a continuous period of time, such as a first duration, during which the timing error of the terminal device receiving the downlink positioning signal is small enough, and / or the timing error of the terminal device sending the uplink positioning signal is small enough, and / or the timing error of the network device or service satellite sending the downlink positioning signal is small enough, and / or the timing error of receiving the uplink positioning signal is small enough.

[0106] For example, a TRP group includes TRPs corresponding to two different time points. For example, TRP group i includes TRP i corresponding to the serving satellite position at time ti and TRP i' corresponding to the serving satellite position at time ti'. The distance between TRP i and the terminal device is di, and the distance between TRP i' and the terminal device is di', where i = 0, 1, 2, ..., M-1. In each TRP group, TRP i is considered the reference TRP.

[0107] For the Multi-RTT positioning method, the TRP group i may correspond to the reception of a downlink positioning signal, and / or, the TRP group i may correspond to the transmission of an uplink positioning signal.

[0108] Figure 10 shows a block diagram of a positioning system according to an exemplary embodiment of the present application. The positioning system is applied to an NTN network including a service satellite, and includes: a terminal device 12, a service satellite 14, and a network device 16. Optionally, the positioning system also includes a LMF 18.

[0109] The service satellite 14 forms at least one virtual TRP and / or includes at least one virtual TRP group. A virtual TRP group may include at least one virtual TRP, and the number of virtual TRPs in each virtual TRP group may be the same or different.

[0110] In some embodiments, a virtual TRP may be referred to as a TRP, and a virtual TRP group may be referred to as a TRP group.

[0111] As schematically shown in Figure 10, the virtual TRPs included in the positioning system are: TRP0 (corresponding to the service satellite position at time t0), TRP0' (corresponding to the service satellite position at time t0'), TRP 1 (corresponding to the service satellite position at time t1), TRP 1' (corresponding to the service satellite position at time t1'), TRP 2 (corresponding to the service satellite position at time t2), TRP 2' (corresponding to the service satellite position at time t2'), TRP 3 (corresponding to the service satellite position at time t3), and TRP 3' (corresponding to the service satellite position at time t3').

[0112] Optionally, TRP0 and TRP0' form a virtual TRP group 0, TRP 1 and TRP 1' form a virtual TRP group 1, TRP 2 and TRP 2' form a virtual TRP group 2, and TRP 3 and TRP 3' form a virtual TRP group 3.

[0113] This embodiment is schematically illustrated by taking a positioning system including four virtual TRP groups, each of which includes two virtual TRPs. The positioning system performs positioning based on M downlink positioning signal resources and / or N uplink positioning signal resources, where M and N are positive integers.

[0114] The M downlink positioning signal resources and / or the N uplink positioning signal resources meet at least one of the following conditions:

[0115] There is a one-to-one correspondence between the M downlink positioning signal resources and the service satellite positions at M times;

[0116] There is a one-to-one correspondence between the M downlink positioning signal resources and the M virtual TRPs;

[0117] There is a one-to-one correspondence between the service satellite positions at M moments and the M virtual TRPs;

[0118] There is a one-to-one correspondence between N uplink positioning signal resources and the service satellite positions at N moments in time;

[0119] There is a one-to-one correspondence between N uplink positioning signal resources and N virtual TRPs;

[0120] The service satellite positions at N moments have a one-to-one correspondence with N virtual TRPs;

[0121] When M is an integer greater than 1, the M moments are different moments; when N is an integer greater than 1, the N moments are different moments.

[0122] In some embodiments, the positioning system uses a first positioning signal resource group, which includes: M downlink positioning signal resources, and / or N uplink positioning signal resources; or, the positioning system includes a first virtual TRP group, which includes: M virtual TRPs, and / or N virtual TRPs; or, the positioning system includes a first service satellite position group, which includes: service satellite positions at M times, and / or service satellite positions at N times.

[0123] In some embodiments, the sending timing error of the downlink positioning signal corresponding to the M downlink positioning signal resources is within the second error range, and / or the receiving timing error of the downlink positioning signal corresponding to the M downlink positioning signal resources is within the first error range; or, the sending timing error of the downlink positioning signal corresponding to the M virtual TRPs is within the second error range, and / or the receiving timing error of the downlink positioning signal corresponding to the M virtual TRPs is within the first error range; or, the sending timing error of the downlink positioning signal corresponding to the service satellite positions at M moments is within the second error range, and / or the receiving timing error of the downlink positioning signal corresponding to the service satellite positions at M moments is within the first error range.

[0124] In some embodiments, the sending timing error of the uplink positioning signals corresponding to the N uplink positioning signal resources is within the third error range, and / or the receiving timing error of the uplink positioning signals corresponding to the N uplink positioning signal resources is within the fourth error range; or, the sending timing error of the uplink positioning signals corresponding to the N virtual TRPs is within the third error range, and / or the receiving timing error of the uplink positioning signals corresponding to the N virtual TRPs is within the fourth error range; or, the sending timing error of the uplink positioning signals corresponding to the service satellite positions at N moments is within the third error range, and / or the receiving timing error of the uplink positioning signals corresponding to the service satellite positions at N moments is within the fourth error range.

[0125] In some embodiments, the error of the sum of the reception timing error of the downlink positioning signal corresponding to the downlink positioning signal resources in the first positioning signal resource group and the transmission timing error of the uplink positioning signal corresponding to the uplink positioning signal resources is within the fifth error range, and / or, the error of the sum of the transmission timing error of the downlink positioning signal corresponding to the downlink positioning signal resources in the first positioning signal resource group and the reception timing error of the uplink positioning signal corresponding to the uplink positioning signal resources is within the sixth error range; or, the error of the sum of the reception timing error of the downlink positioning signal corresponding to the M virtual TRPs in the first virtual TRP group and the transmission timing error of the uplink positioning signal corresponding to the N virtual TRPs is within the fifth error range, and / or, The error between the sending timing errors of the downlink positioning signals corresponding to the M virtual TRPs in the first virtual TRP group and the sum of the receiving timing errors of the uplink positioning signals corresponding to the N virtual TRPs is within the sixth error range; or, the error between the receiving timing errors of the downlink positioning signals corresponding to the service satellite positions at M moments in the first service satellite position group and the sum of the sending timing errors of the uplink positioning signals corresponding to the service satellite positions at N moments is within the fifth error range, and / or, the error between the sending timing errors of the downlink positioning signals corresponding to the service satellite positions at M moments in the first service satellite position group and the sum of the receiving timing errors of the uplink positioning signals corresponding to the service satellite positions at N moments is within the sixth error range.

[0126] In some embodiments of the present application, the first error range may mean that the error in the first error range is sufficiently small, for example, smaller than a threshold or within a specific error range or can be ignored.

[0127] In some embodiments of the present application, the second error range may mean that the error in the second error range is sufficiently small, for example, smaller than a threshold or within a specific error range or can be ignored.

[0128] In some embodiments of the present application, the third error range may mean that an error in the third error range is sufficiently small, for example, smaller than a threshold or within a specific error range or negligible.

[0129] In some embodiments of the present application, the fourth error range may mean that an error in the fourth error range is sufficiently small, for example, smaller than a threshold or within a specific error range or can be ignored.

[0130] In some embodiments of the present application, the fifth error range may mean that the error in the fifth error range is sufficiently small, for example, smaller than a threshold or within a specific error range or can be ignored.

[0131] In some embodiments of the present application, the sixth error range may mean that the error in the sixth error range is sufficiently small, for example, smaller than a threshold or within a specific error range or can be ignored.

[0132] The technical solutions provided in the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, Advanced Long Term Evolution (LTE-A) system, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, fifth generation (5G) mobile communication system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-based access to unlicensed spectrum). spectrum, LTE-U) system, NR (NR-based access to unlicensed spectrum, NR-U) system on unlicensed spectrum, terrestrial communication network (NTN) system, non-terrestrial communication network (NTN) system, wireless local area network (WLAN), wireless fidelity (Wi-Fi), cellular Internet of Things system, cellular passive Internet of Things system, and may also be applicable to subsequent evolution systems of 5G NR system, and may also be applicable to Beyond Fifth Generation (B5G), 6G and subsequent evolution systems. In some embodiments of the present application, "NR" may also be referred to as 5G NR system or 5G system.Among them, the 5G mobile communication system may include non-standalone networking (NSA) and / or standalone networking (SA).

[0133] The technical solutions provided in the embodiments of the present application can also be applied to machine type communication (MTC), long term evolution technology for machine-to-machine communication (LTE-M), device-to-device (D2D) network, machine-to-machine (M2M) network, Internet of Things (IoT) network or other networks. Among them, the IoT network can include, for example, the Internet of Vehicles. Among them, the communication mode in the Internet of Vehicles system is collectively referred to as vehicle to other devices (Vehicle to X, V2X, X can represent anything), for example, the V2X can include: vehicle to vehicle (V2V) communication, vehicle to infrastructure (V2I) communication, vehicle to pedestrian communication (V2P) or vehicle to network (V2N) communication, etc.

[0134] FIG11 is a flow chart of a wireless communication method for positioning according to an exemplary embodiment of the present application. This embodiment is illustrated by an example in which the method is executed by a terminal device. The terminal device may be a terminal device in an NTN system. The method includes:

[0135] Step 102: Receive first configuration information;

[0136] The first configuration information is used to determine (or configure) M downlink positioning signal resources and / or N uplink positioning signal resources, where M and N are positive integers. The first configuration information may be one or more configuration information.

[0137] In some embodiments, receiving the first configuration information by the terminal device includes: receiving the first configuration information sent by the network device; and / or receiving the first configuration information sent by the LMF. That is, the first configuration information can be configured by the network device and / or the LMF. If there is a single piece of first configuration information, it can be configured by the network device or the LMF; if there are multiple pieces of first configuration information, the network device and the LMF can jointly configure the information.

[0138] In some embodiments, one first configuration information is used to simultaneously determine M downlink positioning signal resources and N uplink positioning signal resources. In some embodiments, there are at least two first configuration information, one for determining M downlink positioning signal resources and the other for determining N uplink positioning signal resources.

[0139] In some embodiments, the M downlink positioning signal resources have a one-to-one correspondence with the serving satellite positions at M moments, or the M downlink positioning signal resources have a one-to-one correspondence with M virtual TRPs. In some embodiments, the N uplink positioning signal resources have a one-to-one correspondence with the serving satellite positions at N moments, or the N uplink positioning signal resources have a one-to-one correspondence with N virtual TRPs. When M is an integer greater than 1, the M moments are different moments, and when N is an integer greater than 1, the N moments are different moments.

[0140] In some embodiments, one or more first configuration information is used to determine P downlink positioning signal resource groups and / or Q uplink positioning signal resource groups. Each downlink positioning signal resource group in the P downlink positioning signal resource groups corresponds to a virtual TRP group; each uplink positioning signal resource group in the Q uplink positioning signal resource groups corresponds to a virtual TRP group. The first downlink positioning signal resource group in the P downlink positioning signal resource groups includes M downlink positioning signal resources, and the first uplink positioning signal resource group in the Q uplink positioning signal resource groups includes N uplink positioning signal resources.

[0141] In some embodiments, one or more first configuration information is used to determine R positioning signal resource groups. Each positioning signal resource group in the R positioning signal resource groups corresponds to a virtual TRP group. The first positioning signal resource group in the R positioning signal resource groups includes M downlink positioning signal resources and N uplink positioning signal resources.

[0142] Step 104: Report first measurement information based on the first configuration information, where the first measurement information includes at least one of a first time difference and first time information.

[0143] The first measurement information includes measurement information related to achieving multi-TRP positioning or multi-time corresponding service satellite position positioning or multi-RTT positioning. The first measurement information is related to the reception timing of the downlink positioning signal and / or the transmission timing of the uplink positioning signal. In some embodiments, the first measurement information is used to calculate the distance or RTT between the terminal device and the virtual TRP.

[0144] In some embodiments, the above method also includes: the terminal device receives at least one downlink positioning signal among M downlink positioning signals based on M downlink positioning signal resources; and / or, sends at least one uplink positioning signal among N uplink positioning signals based on N uplink positioning signal resources.

[0145] In some embodiments, receiving at least one downlink positioning signal among M downlink positioning signals according to M downlink positioning signal resources includes: receiving M downlink positioning signals according to M downlink positioning signal resources; in some embodiments, sending at least one uplink positioning signal among N uplink positioning signals according to N uplink positioning signal resources includes: sending N uplink positioning signals according to N uplink positioning signal resources.

[0146] In some embodiments, the first time difference is determined based on at least one set of downlink positioning signal reception timing and uplink positioning signal transmission timing. For example, the first time difference is the difference between the downlink positioning signal reception timing and the uplink positioning signal transmission timing.

[0147] First time difference

[0148] The first time difference is the difference between the reception timing of the downlink positioning signal and the transmission timing of the uplink positioning signal. For example, the first time difference is the UERx-Tx time difference. Optionally, the first time difference is a positive number, a negative number, or 0.

[0149] In some embodiments, the unit of the first time difference may be a time slot, a subframe, a millisecond, a microsecond, or a sampling time interval unit T. c The present application is not limited thereto.

[0150] First downlink time unit

[0151] In some embodiments, the reception timing of the downlink positioning signal is the reception timing of the first downlink time unit, or the reception timing of the downlink positioning signal is the Universal Time Coordinated (UTC) time corresponding to the reception timing of the first downlink time unit;

[0152] The first downlink time unit includes at least one time unit corresponding to at least one downlink positioning signal resource among the M downlink positioning signal resources.

[0153] In some embodiments, the first downlink time unit includes at least one of the following situations:

[0154] The first downlink time unit includes the time unit corresponding to the first downlink positioning signal resource among the M downlink positioning signal resources;

[0155] The first downlink time unit includes the time unit corresponding to the last downlink positioning signal resource among the M downlink positioning signal resources;

[0156] The first downlink time unit includes a time unit in the M downlink positioning signal resources for determining the reception timing of the downlink positioning signal. As an example and not a limitation, the first downlink time unit is a time unit determined by the terminal device itself.

[0157] First uplink time unit

[0158] In some embodiments, the sending timing of the uplink positioning signal is the sending timing of the first uplink time unit, or the sending timing of the uplink positioning signal is the UTC time corresponding to the sending timing of the first uplink time unit;

[0159] The first uplink time unit includes at least one time unit corresponding to at least one uplink positioning signal resource among the N uplink positioning signal resources.

[0160] In some embodiments, the first uplink time unit includes at least one of the following situations:

[0161] The first uplink time unit includes a time unit corresponding to the first uplink positioning signal resource among the N uplink positioning signal resources;

[0162] The first uplink time unit includes the time unit corresponding to the last uplink positioning signal resource among the N uplink positioning signal resources;

[0163] The first uplink time unit includes a time unit in the N uplink positioning signal resources for determining the transmission timing of the uplink positioning signal. As an example and not a limitation, the first uplink time unit is a time unit determined by the terminal device itself.

[0164] In some embodiments, the time unit is at least one of a subframe, a time slot, a frame, a symbol group, and a symbol.

[0165] In some embodiments, the first time difference is defined as T UE-RX -T UE-TX , or, the first time difference is defined as the time difference between the receiving timing of the terminal device receiving the first downlink time unit #i and the sending timing of the terminal device sending the first uplink time unit #j.

[0166] Optionally, T UE-RX The receiving timing of the first downlink time unit #i received by the terminal device, or T UE-RXThe UTC time corresponding to the reception timing of the first downlink time unit #i received by the terminal device. Optionally, the reception timing is determined based on the first arrival path of the received signal. Optionally, the reception timing (for example, the first arrival path corresponding to the starting position of the first downlink time unit #i) is determined based on one or more downlink positioning signal resources (for example, downlink PRS resources). Optionally, the first downlink time unit #i includes at least one time unit corresponding to M downlink positioning signal resources. For example, the first downlink time unit #i includes the time unit where the first downlink positioning signal resource among the M downlink positioning signal resources is located. For another example, the first downlink time unit #i includes the time unit where the last downlink positioning signal resource among the M downlink positioning signal resources is located. For another example, the first downlink time unit #i is determined by the terminal device from the time units where the M downlink positioning signal resources are located.

[0167] Optionally, T UE-TX The sending timing of the first uplink time unit #j is sent to the terminal device, or T UE-TX The UTC time corresponding to the sending timing of the first uplink time unit #j sent by the terminal device. Optionally, the first uplink time unit #j includes at least one time unit corresponding to N uplink positioning signal resources. For example, the first uplink time unit #j includes the time unit where the first uplink positioning signal resource among the N uplink positioning signal resources is located. For another example, the first uplink time unit #j includes the time unit where the last uplink positioning signal resource among the N uplink positioning signal resources is located. For another example, the first uplink time unit #j is determined by the terminal device from the time units where the N uplink positioning signal resources are located.

[0168] In some embodiments, it can also be considered that the first time difference, for example, the UERx-Tx time difference, is obtained according to the timing of the actual signal reception time unit and the timing of the actual signal transmission time unit.

[0169] First time information

[0170] In some embodiments, the first time information includes: information related to the reception timing of the downlink positioning signal, and / or information related to the transmission timing of the uplink positioning signal.

[0171] In some embodiments, the first time information includes at least one of the following:

[0172] First downlink time unit;

[0173] First uplink time unit;

[0174] The UTC time corresponding to the first downlink time unit;

[0175] The UTC time corresponding to the first uplink time unit;

[0176] The first downlink time unit is used to determine the reception timing of the downlink positioning signal, and the first uplink time unit is used to determine the transmission timing of the uplink positioning signal.

[0177] In some embodiments, the first time information includes at least one of the following: the first downlink time unit #i, the first uplink time unit #j, the UTC time corresponding to the first downlink time unit #i, and the UTC time corresponding to the first uplink time unit #j.

[0178] Optionally, the first time information includes the first downlink time unit #i, which may mean: the first time information includes the starting position information of the first downlink time unit #i, or the first time information includes the ending position information of the first downlink time unit #i.

[0179] Optionally, the first time information includes the first uplink time unit #j, which may mean: the first time information includes the starting position information of the first uplink time unit #j, or the first time information includes the ending position information of the first uplink time unit #j.

[0180] Optionally, the first time information includes the UTC time corresponding to the first downlink time unit #i, which may mean: the first time information includes the UTC time corresponding to the starting position of the first downlink time unit #i, or the first time information includes the UTC time corresponding to the ending position of the first downlink time unit #i.

[0181] Optionally, the first time information includes the UTC time corresponding to the first uplink time unit #j, which may mean: the first time information includes the UTC time corresponding to the starting position of the first uplink time unit #j, or the first time information includes the UTC time corresponding to the ending position of the first uplink time unit #j.

[0182] In some embodiments, the terminal device reporting the first measurement information based on the first configuration information includes: reporting the first measurement information to the network device based on the first configuration information; and / or reporting the first measurement information to the LMF based on the first configuration information. Optionally, when the first configuration information is configured by the network device, the terminal device reports the first measurement information to the network device based on the first configuration information; when the first configuration information is configured by the LMF, the terminal device reports the first measurement information to the LMF based on the first configuration information. However, it is not excluded that in some embodiments, the first configuration information is configured by the network device, and the terminal device reports the first measurement information to the LMF based on the first configuration information; or, the first configuration information is configured by the LMF, and the terminal device reports the first measurement information to the network device based on the first configuration information. This embodiment of the present application is not limited to this.

[0183] In summary, the method provided in this embodiment locates the terminal device through M downlink positioning signal resources and / or N uplink positioning signal resources. The M downlink positioning signal resources can have a one-to-one correspondence with the service satellite positions at M times, and the N downlink positioning signal resources can have a one-to-one correspondence with the service satellite positions at N times, thereby realizing the positioning of the terminal device in the NTN system.

[0184] Downlink positioning signal resource group

[0185] In some embodiments, the M downlink positioning signal resources are downlink positioning signal resources in a first downlink positioning signal resource group among P downlink positioning signal resource groups, where P is a positive integer. Exemplarily, the first configuration information is used to determine the P downlink positioning signal resource groups, where the P downlink positioning signal resource groups correspond to the P virtual TRP groups. The P downlink positioning signal resource groups include the first downlink positioning signal resource group, which includes the M downlink positioning signal resources.

[0186] In some embodiments, the downlink positioning signal resources in the first downlink positioning signal resource group satisfy at least one of the following conditions, or the downlink positioning signal resources in each downlink positioning signal resource group in the P downlink positioning signal resource groups satisfy at least one of the following conditions:

[0187] A reception timing error when receiving a downlink positioning signal corresponding to a downlink positioning signal resource in the same downlink positioning signal resource group is within a first error range.

[0188] Exemplarily, the Rx timing error within the first error range can be understood as “the Rx timing error difference within a certain margin.” The Rx timing error of the downlink positioning signal corresponds to the terminal device side.

[0189] For example, the reception timing error of the downlink positioning signal corresponding to the downlink positioning signal resources in the same downlink positioning signal resource group corresponding to the terminal device is within a specific error range.

[0190] A transmission timing error when transmitting a downlink positioning signal corresponding to a downlink positioning signal resource in the same downlink positioning signal resource group is within a second error range.

[0191] Exemplarily, the transmit timing error within the second error range can be understood as “the Tx timing error difference within a certain margin.” The transmit timing error of the downlink positioning signal corresponds to the network device, service satellite, or reference point side.

[0192] For example, the sending timing error of the downlink positioning signal corresponding to the downlink positioning signal resources in the same downlink positioning signal resource group corresponding to the network device or the service satellite or the reference point is within a specific error range.

[0193] The first error range and / or the second error range may be a specific error range, or the first error range and / or the second error range may be small enough, or the range width of the first error range and / or the second error range may be smaller than a threshold, or the first error range and / or the second error range may be negligible.

[0194] Uplink positioning signal resource group

[0195] In some embodiments, the N uplink positioning signal resources are uplink positioning signal resources in a first uplink positioning signal resource group among Q uplink positioning signal resource groups, where Q is a positive integer. Exemplarily, the first configuration information is used to determine the Q uplink positioning signal resource groups, where the Q uplink positioning signal resource groups correspond to the Q virtual TRP groups. The Q uplink positioning signal resource groups include a first uplink positioning signal resource group, which includes N uplink positioning signal resources.

[0196] In some embodiments, the uplink positioning signal resources in the first uplink positioning signal resource group satisfy at least one of the following conditions, or the uplink positioning signal resources in each uplink positioning signal resource group in the Q uplink positioning signal resource groups satisfy at least one of the following conditions:

[0197] A transmission timing error when transmitting an uplink positioning signal corresponding to an uplink positioning signal resource in the same uplink positioning signal resource group is within a third error range.

[0198] Exemplarily, the transmit timing error within the second error range can be understood as “the Tx timing error difference within a certain margin.” The transmit timing error of the uplink positioning signal corresponds to the terminal device side.

[0199] For example, the sending timing error of the uplink positioning signal corresponding to the uplink positioning signal resources in the same uplink positioning signal resource group corresponding to the terminal device is within a specific error range.

[0200] A reception timing error when receiving an uplink positioning signal corresponding to an uplink positioning signal resource in the uplink positioning signal resource group is within a fourth error range.

[0201] Exemplarily, the Rx timing error within the first error range can be understood as “the Rx timing error difference within a certain margin.” The Rx timing error of the uplink positioning signal corresponds to the network device, the service satellite, or the reference point side.

[0202] For example, the reception timing error of the uplink positioning signal corresponding to the uplink positioning signal resources in the same uplink positioning signal resource group corresponding to the network device, the service satellite, or the reference point is within a specific error range.

[0203] The third error range and / or the fourth error range can be a specific error range, or the third error range and / or the fourth error range is small enough, or the range width of the third error range and / or the fourth error range is less than a threshold, or the third error range and / or the fourth error range can be ignored.

[0204] Positioning signal resource group (including uplink and downlink)

[0205] In some embodiments, the M downlink positioning signal resources and the N uplink positioning signal resources are positioning signal resources in a first positioning signal resource group among R positioning signal resource groups, where R is a positive integer. Exemplarily, the first configuration information is used to determine R positioning signal resource groups, where the R positioning signal resource groups correspond to R virtual TRPs. The first positioning signal resource group among the R positioning signal resource groups includes M downlink positioning signal resources and N uplink positioning signal resources.

[0206] In some embodiments, the positioning signal resources in the first positioning signal resource group satisfy at least one of the following conditions, or the positioning signal resources in each positioning signal resource group in the R positioning signal resource groups satisfy at least one of the following conditions:

[0207] A reception timing error when receiving a downlink positioning signal corresponding to a downlink positioning signal resource in the same positioning signal resource group is within a first error range;

[0208] The transmission timing error when transmitting the downlink positioning signal corresponding to the downlink positioning signal resource in the same positioning signal resource group is within the second error range;

[0209] A transmission timing error when transmitting an uplink positioning signal corresponding to an uplink positioning signal resource in the same positioning signal resource group is within a third error range;

[0210] A reception timing error when receiving an uplink positioning signal corresponding to an uplink positioning signal resource in the same positioning signal resource group is within a fourth error range;

[0211] The sum of the reception timing error when receiving the downlink positioning signal corresponding to the downlink positioning signal resource in the same positioning signal resource group and the transmission timing error when transmitting the uplink positioning signal corresponding to the uplink positioning signal resource in the same positioning signal resource group is within a fifth error range;

[0212] The sum of a transmission timing error when transmitting a downlink positioning signal corresponding to a downlink positioning signal resource in the same positioning signal resource group and a reception timing error when receiving an uplink positioning signal corresponding to an uplink positioning signal resource in the same positioning signal resource group is within a sixth error range.

[0213] Illustratively, the error of the sum of the above errors within the fifth error range or the sixth error range can be understood as “the 'Rx timing errors+Tx timing errors' difference within a certain margin”.

[0214] For example, the error between the sum of the reception timing error of the downlink positioning signal corresponding to the downlink positioning signal resource in the same positioning signal resource group corresponding to the terminal device and the transmission timing error of the uplink positioning signal corresponding to the uplink positioning signal resource in the same positioning signal resource group corresponding to the terminal device is within a specific error range.

[0215] For example, the error between the sum of the sending timing error of the downlink positioning signal corresponding to the downlink positioning signal resource in the same positioning signal resource group corresponding to the network device or service satellite or reference point and the receiving timing error of the uplink positioning signal corresponding to the uplink positioning signal resource in the same positioning signal resource group corresponding to the network device or service satellite or reference point is within a specific error range.

[0216] In some embodiments, the downlink positioning signal resources include downlink PRS resources. In some embodiments, the uplink positioning signal resources include uplink positioning SRS resources and / or uplink Multiple-Input Multiple-Output (MIMO) SRS resources.

[0217] It should be noted that in the NTN system, since the service satellite position at different times is equivalent to TRP or virtual TRP, and the terminal device can obtain the synchronization information between it and the service satellite, in some cases (for example, when there is only one service satellite), other channels or signals (such as downlink channels or signals, and / or uplink channels or signals) in addition to positioning signal resources can also be used to implement the positioning function.

[0218] In some embodiments, the downlink positioning signal resources include at least one of the following: downlink PRS resources, synchronization signal block (SS / PBCH block, SSB) resources, channel state information reference signal (CSI-RS) resources, and demodulation reference signal (DMRS) resources. Optionally, the DMRS resources include DMRS resources corresponding to the physical downlink shared channel (PDSCH) and / or DMRS resources corresponding to the physical downlink control channel (PDCCH).

[0219] For example, the M downlink positioning signal resources include downlink PRS resources and CSI-RS resources.

[0220] For another example, the P downlink positioning signal resource groups include at least two downlink positioning signal resource groups, wherein the downlink positioning signal resources included in one downlink positioning signal resource group are SSB resources, and the downlink positioning signal resources included in the other downlink positioning signal resource group are CSI-RS resources.

[0221] In some embodiments, the uplink positioning signal resources include at least one of the following: positioning SRS resources, MIMO SRS resources, physical random access channel (PRACH) resources, and DMRS resources. Optionally, the DMRS resources include DMRS resources corresponding to a physical uplink shared channel (PUSCH) and / or DMRS resources corresponding to a physical uplink control channel (PUCCH).

[0222] For example, the N uplink positioning signal resources include positioning SRS resources and PRACH resources.

[0223] For another example, the Q uplink positioning signal resource groups include at least two uplink positioning signal resource groups, wherein the uplink positioning signal resources included in one uplink positioning signal resource group are SRS resources, and the uplink positioning signal resources included in the other uplink positioning signal resource group are PRACH resources.

[0224] In some embodiments, M and N are equal. In some embodiments, P and Q are equal.

[0225] The fifth error range and / or the sixth error range can be a specific error range, or the fifth error range and / or the sixth error range is small enough, or the range width of the fifth error range and / or the sixth error range is less than a threshold, or the fifth error range and / or the sixth error range can be ignored.

[0226] In some embodiments, at least one of the first error range, the second error range, the third error range, the fourth error range, the fifth error range, and the sixth error range may be default, configured, or predefined.

[0227] FIG12 shows a flowchart of a wireless communication method for positioning provided by an exemplary embodiment of the present application. This embodiment is illustrated by taking the method executed by a network device or a service satellite as an example, and the method includes:

[0228] Step 202: Obtain first configuration information;

[0229] The first configuration information is used to determine (or configure) M downlink positioning signal resources and / or N uplink positioning signal resources, where M and N are positive integers. The first configuration information may be one or more configuration information.

[0230] When the execution entity is a network device (in this embodiment, an access network device), the network device obtaining the first configuration information includes: the network device determining or generating the first configuration information, and / or the network device receiving the first configuration information sent by the LMF. That is, the first configuration information can be configured by the network device and / or the LMF. When there is only one piece of first configuration information, it can be generated or determined by the network device, or configured by the LMF. When there are multiple pieces of first configuration information, they can be determined, generated, or configured collaboratively by the network device and the LMF.

[0231] When the execution entity is a service satellite, obtaining the first configuration information by the service satellite includes: receiving the first configuration information from a network device and / or receiving the first configuration information from a LMF. In other words, the first configuration information is configured by the network device and / or the LMF. If there is only one piece of first configuration information, it can be configured by the network device or the LMF. If there are multiple pieces of first configuration information, they can be configured collaboratively by the network device and the LMF.

[0232] In some embodiments, one first configuration information is used to simultaneously determine M downlink positioning signal resources and N uplink positioning signal resources. In some embodiments, there are at least two first configuration information, one for determining M downlink positioning signal resources and the other for determining N uplink positioning signal resources.

[0233] In some embodiments, the M downlink positioning signal resources have a one-to-one correspondence with the serving satellite positions at M moments, or the M downlink positioning signal resources have a one-to-one correspondence with M virtual TRPs. In some embodiments, the N uplink positioning signal resources have a one-to-one correspondence with the serving satellite positions at N moments, or the N uplink positioning signal resources have a one-to-one correspondence with N virtual TRPs. When M is an integer greater than 1, the M moments are different moments, and when N is an integer greater than 1, the N moments are different moments.

[0234] In some embodiments, one or more first configuration information is used to determine P downlink positioning signal resource groups and / or Q uplink positioning signal resource groups. Each downlink positioning signal resource group in the P downlink positioning signal resource groups corresponds to a virtual TRP group; each uplink positioning signal resource group in the Q uplink positioning signal resource groups corresponds to a virtual TRP group. The first downlink positioning signal resource group in the P downlink positioning signal resource groups includes M downlink positioning signal resources, and the first uplink positioning signal resource group in the Q uplink positioning signal resource groups includes N uplink positioning signal resources.

[0235] In some embodiments, one or more first configuration information is used to determine R positioning signal resource groups. Each positioning signal resource group in the R positioning signal resource groups corresponds to a virtual TRP group. The first positioning signal resource group in the R positioning signal resource groups includes M downlink positioning signal resources and N uplink positioning signal resources.

[0236] In some embodiments, the network device or serving satellite transmits at least one of the M downlink positioning signals based on M downlink positioning signal resources; and / or receives at least one of the N uplink positioning signals based on N uplink positioning signal resources. In some embodiments, the network device or serving satellite transmits at least one of the M downlink positioning signals based on M downlink positioning signal resources, including: transmitting M downlink positioning signals based on M downlink positioning signal resources. In some embodiments, the network device or serving satellite receives at least one of the N uplink positioning signals based on N uplink positioning signal resources, including: receiving N uplink positioning signals based on N uplink positioning signal resources.

[0237] Step 204: Report second measurement information based on the first configuration information, where the second measurement information includes at least one of a second time difference and second time information.

[0238] The second measurement information includes measurement information related to achieving multi-TRP positioning or multi-time corresponding service satellite position positioning or Multi-RTT positioning. The second measurement information is related to the reception timing of the uplink positioning signal and / or the transmission timing of the downlink positioning signal.

[0239] In some embodiments, the second measurement information is used to calculate the distance or RTT between the terminal device and the virtual TRP.

[0240] In some embodiments, the above method also includes: the network device or service satellite sends at least one downlink positioning signal among M downlink positioning signals based on M downlink positioning signal resources; and / or, receives at least one uplink positioning signal among N uplink positioning signals based on N uplink positioning signal resources.

[0241] In some embodiments, sending at least one downlink positioning signal among M downlink positioning signals according to M downlink positioning signal resources includes: sending M downlink positioning signals according to M downlink positioning signal resources; in some embodiments, receiving at least one uplink positioning signal among N uplink positioning signals according to N uplink positioning signal resources includes: receiving N uplink positioning signals according to N uplink positioning signal resources.

[0242] In some embodiments, the second time difference is determined based on the reception timing of at least one set of uplink positioning signals and the transmission timing of downlink positioning signals. For example, the second time difference is the difference between the reception timing of the uplink positioning signal and the transmission timing of the downlink positioning signal. Optionally, the second time difference is a positive number, a negative number, or 0.

[0243] In some embodiments, the network device reports the second measurement information to the LMF based on the first configuration information, so that the LMF performs Multi-RTT positioning on the terminal device based on the first measurement information and the second measurement information.

[0244] In some embodiments, the network device can also perform self-positioning. The network device receives first measurement information reported by the terminal device and performs Multi-RTT positioning of the terminal device based on the first measurement information and the second measurement information. Optionally, the network device also reports the positioning result of the terminal device to the LMF or notifies the terminal device.

[0245] Second time difference

[0246] The second time difference is the difference between the reception timing of the uplink positioning signal and the transmission timing of the downlink positioning signal. For example, the second time difference is the gNBRx-Tx time difference or the serving satellite Rx-Tx time difference. Optionally, the second time difference is a positive number, a negative number, or 0.

[0247] In some embodiments, the unit of the second time difference may be a time slot, a subframe, a millisecond, a microsecond, or a sampling time interval unit T. c The present application is not limited thereto.

[0248] Second downlink time unit

[0249] In some embodiments, the sending timing of the downlink positioning signal is the sending timing of the second downlink time unit, or the sending timing of the downlink positioning signal is the UTC time corresponding to the sending timing of the second downlink time unit;

[0250] The second downlink time unit includes at least one time unit corresponding to at least one downlink positioning signal resource among the M downlink positioning signal resources.

[0251] In some embodiments, the second downlink time unit includes at least one of the following situations:

[0252] The second downlink time unit includes the time unit corresponding to the first downlink positioning signal resource among the M downlink positioning signal resources;

[0253] The second downlink time unit includes the time unit corresponding to the last downlink positioning signal resource among the M downlink positioning signal resources;

[0254] The second downlink time unit includes a time unit in the M downlink positioning signal resources for determining the transmission timing of the downlink positioning signal. As an example and not a limitation, the second downlink time unit is a time unit determined by the network device or the serving satellite.

[0255] Second uplink time unit

[0256] In some embodiments, the reception timing of the uplink positioning signal is the reception timing of the second uplink time unit, or the reception timing of the uplink positioning signal is the UTC time corresponding to the reception timing of the second uplink time unit.

[0257] The second uplink time unit includes at least one time unit corresponding to at least one uplink positioning signal resource among the N uplink positioning signal resources.

[0258] In some embodiments, the second uplink time unit includes at least one of the following situations:

[0259] The second uplink time unit includes the time unit corresponding to the first uplink positioning signal resource among the N uplink positioning signal resources;

[0260] The second uplink time unit includes the time unit corresponding to the last uplink positioning signal resource among the N uplink positioning signal resources;

[0261] The second uplink time unit includes a time unit in the N uplink positioning signal resources for determining the reception timing of the uplink positioning signal. As an example and not a limitation, the second uplink time unit is a time unit determined by the network device or the serving satellite.

[0262] In some embodiments, the time unit is at least one of a subframe, a time slot, a frame, a symbol group, and a symbol.

[0263] In some embodiments, the second time difference is defined as T gNB-RX -T gNB-TX Alternatively, the second time difference is defined as the time difference between the reception timing of the second uplink time unit #k received by the network device and the transmission timing of the second downlink time unit #l sent by the network device.

[0264] Optionally, T gNB-RX The receiving timing of the second uplink time unit #k received by the network device, or T gNB-RX The UTC time corresponding to the reception timing of the second uplink time unit #k received by the network device. Optionally, the reception timing is determined based on the first arrival path of the received signal. Optionally, the reception timing (for example, the first arrival path corresponding to the starting position of the second uplink time unit #k) is determined based on one or more uplink positioning signal resources such as uplink SRS resources. Optionally, the second uplink time unit #k is a second uplink time unit associated with the terminal device and includes an uplink positioning signal, or the second uplink time unit #k includes at least one time unit corresponding to N uplink positioning signal resources. For example, the second uplink time unit #k includes the time unit where the first uplink positioning signal resource among the N uplink positioning signal resources is located. For another example, the second uplink time unit #k includes the time unit where the last uplink positioning signal resource among the N uplink positioning signal resources is located. For another example, the second uplink time unit #k is determined by the network device from the time units where the N uplink positioning signal resources are located.

[0265] Optionally, T gNB-TX The network device sends the second downlink time unit #1 sending timing, or, T gNB-TX The UTC time corresponding to the timing of sending the second downlink time unit #1 by the network device. Optionally, the second downlink time unit #1 includes at least one time unit corresponding to M downlink positioning signal resources. For example, the second downlink time unit #1 includes the time unit containing the first downlink positioning signal resource among the M downlink positioning signal resources. In another example, the second downlink time unit #1 includes the time unit containing the last downlink positioning signal resource among the M downlink positioning signal resources. In another example, the second downlink time unit #1 is determined by the network device from the time units containing the M downlink positioning signal resources.

[0266] In some embodiments, it can also be considered that the second time difference, for example, the gNBRx-Tx time difference, is obtained based on the timing of the actual signal receiving time unit and the timing of the actual signal sending time unit.

[0267] Second time information

[0268] In some embodiments, the second time information includes at least one of the following:

[0269] · Second downlink time unit;

[0270] Second uplink time unit;

[0271] The UTC time corresponding to the second downlink time unit;

[0272] The UTC time corresponding to the second uplink time unit;

[0273] The second downlink time unit is used to determine the sending timing of the downlink positioning signal, and the second uplink time unit is used to determine the receiving timing of the uplink positioning signal.

[0274] In some embodiments, the second downlink time unit is determined based on at least one of the following timings: downlink timing on the serving satellite side, downlink timing on the reference point, and downlink timing on the network device side. In some embodiments, the second uplink time unit is determined based on at least one of the following timings: uplink timing on the serving satellite side, uplink timing on the reference point, and uplink timing on the network device side.

[0275] In some embodiments, the network device reporting the second measurement information based on the first configuration information includes: reporting the second measurement information to the LMF based on the first configuration information. In some embodiments, the serving satellite reporting the second measurement information based on the first configuration information includes: reporting the second measurement information to the network device or the LMF based on the first configuration information.

[0276] In some embodiments, the second time information includes at least one of the following: a second downlink time unit #1, a second uplink time unit #k, a UTC time corresponding to the second downlink time unit #1, and a UTC time corresponding to the second uplink time unit #k.

[0277] Optionally, the second time information includes the second downlink time unit #1, which may mean: the second time information includes the starting position information of the second downlink time unit #1, or the second time information includes the ending position information of the second downlink time unit #1.

[0278] Optionally, the second time information includes the second uplink time unit #k, which may mean: the second time information includes the starting position information of the second uplink time unit #k, or the second time information includes the ending position information of the second uplink time unit #k.

[0279] Optionally, the second time information includes the UTC time corresponding to the second downlink time unit #1, which may mean: the second time information includes the UTC time corresponding to the starting position of the second downlink time unit #1, or the second time information includes the UTC time corresponding to the ending position of the second downlink time unit #1.

[0280] Optionally, the second time information includes the UTC time corresponding to the second uplink time unit #k, which may mean: the second time information includes the UTC time corresponding to the starting position of the second uplink time unit #k, or the second time information includes the UTC time corresponding to the ending position of the second uplink time unit #k.

[0281] In some embodiments, the second downlink time unit #1 is determined according to one of the following timings: downlink timing on the service satellite side, downlink timing on the reference point, and downlink timing on the network device side.

[0282] In some embodiments, the second uplink time unit #k is determined according to one of the following timings: the uplink timing of the service satellite side, the uplink timing of the reference point, and the uplink timing of the network device side.

[0283] In summary, the method provided in this embodiment locates the terminal device through M downlink positioning signal resources and / or N uplink positioning signal resources. The M downlink positioning signal resources can have a one-to-one correspondence with the service satellite positions at M times, and the N downlink positioning signal resources can have a one-to-one correspondence with the service satellite positions at N times, thereby realizing the positioning of the terminal device in the NTN system.

[0284] Downlink positioning signal resource group

[0285] In some embodiments, the M downlink positioning signal resources are downlink positioning signal resources in a first downlink positioning signal resource group among P downlink positioning signal resource groups, where P is a positive integer. Exemplarily, the first configuration information is used to determine the P downlink positioning signal resource groups, where the P downlink positioning signal resource groups correspond to the P virtual TRP groups. The P downlink positioning signal resource groups include the first downlink positioning signal resource group, which includes the M downlink positioning signal resources.

[0286] In some embodiments, the downlink positioning signal resources in the first downlink positioning signal resource group satisfy at least one of the following conditions, or the downlink positioning signal resources in each downlink positioning signal resource group in the P downlink positioning signal resource groups satisfy at least one of the following conditions:

[0287] A reception timing error when receiving a downlink positioning signal corresponding to a downlink positioning signal resource in the same downlink positioning signal resource group is within a first error range.

[0288] Exemplarily, the Rx timing error within the first error range can be understood as “the Rx timing error difference within a certain margin.” The Rx timing error of the downlink positioning signal corresponds to the terminal device side.

[0289] For example, the reception timing error of the downlink positioning signal corresponding to the downlink positioning signal resources in the same downlink positioning signal resource group corresponding to the terminal device is within a specific error range.

[0290] A transmission timing error when transmitting a downlink positioning signal corresponding to a downlink positioning signal resource in the same downlink positioning signal resource group is within a second error range.

[0291] Exemplarily, the transmit timing error within the second error range can be understood as “the Tx timing error difference within a certain margin.” The transmit timing error of the downlink positioning signal corresponds to the network device, service satellite, or reference point side.

[0292] For example, the sending timing error of the downlink positioning signal corresponding to the downlink positioning signal resources in the same downlink positioning signal resource group corresponding to the network device or the service satellite or the reference point is within a specific error range.

[0293] The first error range and / or the second error range may be a specific error range, or the first error range and / or the second error range may be small enough, or the range width of the first error range and / or the second error range may be smaller than a threshold, or the first error range and / or the second error range may be negligible.

[0294] Uplink positioning signal resource group

[0295] In some embodiments, the N uplink positioning signal resources are uplink positioning signal resources in a first uplink positioning signal resource group among Q uplink positioning signal resource groups, where Q is a positive integer. Exemplarily, the first configuration information is used to determine the Q uplink positioning signal resource groups, where the Q uplink positioning signal resource groups correspond to the Q virtual TRP groups. The Q uplink positioning signal resource groups include a first uplink positioning signal resource group, which includes N uplink positioning signal resources.

[0296] In some embodiments, the uplink positioning signal resources in the first uplink positioning signal resource group satisfy at least one of the following conditions, or the uplink positioning signal resources in each uplink positioning signal resource group in the Q uplink positioning signal resource groups satisfy at least one of the following conditions:

[0297] A transmission timing error when transmitting an uplink positioning signal corresponding to an uplink positioning signal resource in the same uplink positioning signal resource group is within a third error range.

[0298] Exemplarily, the transmit timing error within the second error range can be understood as “the Tx timing error difference within a certain margin.” The transmit timing error of the uplink positioning signal corresponds to the terminal device side.

[0299] For example, the sending timing error of the uplink positioning signal corresponding to the uplink positioning signal resources in the same uplink positioning signal resource group corresponding to the terminal device is within a specific error range.

[0300] A reception timing error when receiving an uplink positioning signal corresponding to an uplink positioning signal resource in the uplink positioning signal resource group is within a fourth error range.

[0301] Exemplarily, the Rx timing error within the first error range can be understood as “the Rx timing error difference within a certain margin.” The Rx timing error of the uplink positioning signal corresponds to the network device, the service satellite, or the reference point side.

[0302] For example, the reception timing error of the uplink positioning signal corresponding to the uplink positioning signal resources in the same uplink positioning signal resource group corresponding to the network device, the service satellite, or the reference point is within a specific error range.

[0303] The third error range and / or the fourth error range can be a specific error range, or the third error range and / or the fourth error range is small enough, or the range width of the third error range and / or the fourth error range is less than a threshold, or the third error range and / or the fourth error range can be ignored.

[0304] Positioning signal resource group (including uplink and downlink)

[0305] In some embodiments, the M downlink positioning signal resources and the N uplink positioning signal resources are positioning signal resources in a first positioning signal resource group among R positioning signal resource groups, where R is a positive integer. Exemplarily, the first configuration information is used to determine R positioning signal resource groups, where the R positioning signal resource groups correspond to R virtual TRPs. The first positioning signal resource group among the R positioning signal resource groups includes M downlink positioning signal resources and N uplink positioning signal resources.

[0306] In some embodiments, the positioning signal resources in the first positioning signal resource group satisfy at least one of the following conditions, or the positioning signal resources in each positioning signal resource group in the R positioning signal resource groups satisfy at least one of the following conditions:

[0307] A reception timing error when receiving a downlink positioning signal corresponding to a downlink positioning signal resource in the same positioning signal resource group is within a first error range;

[0308] The transmission timing error when transmitting the downlink positioning signal corresponding to the downlink positioning signal resource in the same positioning signal resource group is within the second error range;

[0309] A transmission timing error when transmitting an uplink positioning signal corresponding to an uplink positioning signal resource in the same positioning signal resource group is within a third error range;

[0310] A reception timing error when receiving an uplink positioning signal corresponding to an uplink positioning signal resource in the same positioning signal resource group is within a fourth error range;

[0311] The sum of the reception timing error when receiving the downlink positioning signal corresponding to the downlink positioning signal resource in the same positioning signal resource group and the transmission timing error when transmitting the uplink positioning signal corresponding to the uplink positioning signal resource in the same positioning signal resource group is within a fifth error range;

[0312] The sum of a transmission timing error when transmitting a downlink positioning signal corresponding to a downlink positioning signal resource in the same positioning signal resource group and a reception timing error when receiving an uplink positioning signal corresponding to an uplink positioning signal resource in the same positioning signal resource group is within a sixth error range.

[0313] Illustratively, the error of the sum of the above errors within the fifth error range or the sixth error range can be understood as “the 'Rx timing errors+Tx timing errors' difference within a certain margin”.

[0314] For example, the error between the sum of the reception timing error of the downlink positioning signal corresponding to the downlink positioning signal resource in the same positioning signal resource group corresponding to the terminal device and the transmission timing error of the uplink positioning signal corresponding to the uplink positioning signal resource in the same positioning signal resource group corresponding to the terminal device is within a specific error range.

[0315] For example, the error between the sum of the sending timing error of the downlink positioning signal corresponding to the downlink positioning signal resource in the same positioning signal resource group corresponding to the network device or service satellite or reference point and the receiving timing error of the uplink positioning signal corresponding to the uplink positioning signal resource in the same positioning signal resource group corresponding to the network device or service satellite or reference point is within a specific error range.

[0316] In some embodiments, the downlink positioning signal resources include downlink PRS resources. In some embodiments, the uplink positioning signal resources include uplink positioning SRS resources and / or uplink MIMO SRS resources.

[0317] In some embodiments, the downlink positioning signal resource includes at least one of the following: downlink PRS resource, SSB resource, CSI-RS resource, DMRS resource. Optionally, the DMRS resource includes DMRS resource corresponding to PDSCH and / or DMRS resource corresponding to PDCCH.

[0318] In some embodiments, the uplink positioning signal resource includes at least one of the following: positioning SRS resources, MIMO SRS resources, PRACH resources, and DMRS resources. Optionally, the DMRS resources include DMRS resources corresponding to PUSCH and / or DMRS resources corresponding to PUCCH.

[0319] In some embodiments, M and N are equal. In some embodiments, P and Q are equal.

[0320] In some embodiments, at least one of the first error range, the second error range, the third error range, the fourth error range, the fifth error range, and the sixth error range may be default, configured, or predefined.

[0321] Example 1

[0322] Figure 13 shows an example of measurement information reporting by a virtual TRP and a terminal device using the Multi-RTT method in an NTN scenario. As shown in Figure 13, the network device or virtual TRP transmits a PRS signal in downlink timeslot #i, which the terminal device receives in downlink timeslot #i. The terminal device is configured to transmit an SRS signal for positioning in uplink timeslot #j, which the network device or virtual TRP receives in uplink timeslot #j.

[0323] The first time difference (UE Rx-Tx time difference) is defined as: the time difference between the UTC time corresponding to the reception timing of the downlink time unit #i received by the terminal device and the UTC time corresponding to the transmission timing of the uplink time unit #j sent by the terminal device.

[0324] In this example, T UE-RX -T UE-TX =T UE DL slot i -T UE UL slot j =-1 time slot.

[0325] The second time difference (gNB Rx-Tx time difference) is defined as the time difference between the UTC time corresponding to the receive timing of the uplink time unit #j received by the network device and the UTC time corresponding to the transmit timing of the downlink time unit #i sent by the network device.

[0326] In this example, if the uplink time unit #j and the downlink time unit #i are determined based on the uplink timing and the downlink timing on the network device side, respectively, then (Case 1 in the figure):

[0327] T gNB-RX -T gNB-TX =T gNB UL slot j –T gNB DL slot i =20 time slots.

[0328] If the uplink time unit #j and the downlink time unit #i are determined based on the uplink timing and downlink timing on the reference point side, respectively, then (Case 2 in the figure):

[0329] T gNB-RX -T gNB-TX =T gNB UL slot j –T gNB DL slot i =14 time slots.

[0330] If the uplink time unit #j and the downlink time unit #i are determined based on the uplink timing and downlink timing on the satellite side, respectively, then (case 3 in the figure):

[0331] T gNB-RX -T gNB-TX =T gNB UL slot j –T gNB DL slot i =10 time slots.

[0332] It should be understood that in this example, the time slot is used as the unit for convenience of expression. In the embodiment of the present application, the unit of the time difference actually determined or reported can be a time slot or a subframe or a millisecond or a microsecond or a sampling time interval unit T c The present application is not limited thereto.

[0333] Therefore, the UE Rx-Tx time difference reported by the terminal device to the LMF is -1 time slot, and the gNB Rx-Tx time difference reported by the network device to the LMF includes at least one of the following situations: the gNB Rx-Tx time difference corresponding to the network device timing is 20 time slots, the gNB Rx-Tx time difference corresponding to the reference point timing is 14 time slots, and the gNB Rx-Tx time difference corresponding to the satellite side timing is 10 time slots. Accordingly, the LMF sums the UE Rx-Tx time difference (-1 time slot) reported by the terminal device and the gNB Rx-Tx time difference (20 time slots) of the corresponding network device timing reported by the network device, and obtains that the RTT between the terminal device and the network device is 19 time slots; and / or, the LMF sums the UE Rx-Tx time difference (-1 time slot) reported by the terminal device and the gNB Rx-Tx time difference (14 time slots) of the corresponding reference point timing reported by the network device, and obtains that the RTT between the terminal device and the reference point is 13 time slots; and / or, the LMF sums the UE Rx-Tx time difference (-1 time slot) reported by the terminal device and the gNB Rx-Tx time difference (10 time slots) of the corresponding satellite side timing reported by the network device, and obtains that the RTT between the terminal device and the satellite is 9 time slots.

[0334] Using the same method, LMF can obtain the RTT between the terminal device and the service satellite at other times (ie, virtual TRP), and then use the location information of each virtual TRP to solve the location information of the terminal device.

[0335] Example 2

[0336] It should be noted that the enhanced definitions of UE Rx-Tx time difference and gNB Rx-Tx time difference also apply to TN network scenarios. Figure 14 shows an example of TRP and terminal device measurement value reporting using the Multi-RTT method in a TN scenario. As shown in Figure 14, the network device transmits a PRS signal in downlink timeslot #i, and the terminal device receives this PRS signal in downlink timeslot #i. The terminal device is configured to transmit an SRS signal for positioning in uplink timeslot #j, and the network device receives this SRS signal in uplink timeslot #j.

[0337] The first time difference (UE Rx-Tx time difference) is defined as: the time difference between the UTC time corresponding to the reception timing of the downlink time unit #i received by the terminal device and the UTC time corresponding to the transmission timing of the uplink time unit #j sent by the terminal device.

[0338] In this example, T UE-RX -T UE-TX =T UE DL slot i -T UE UL slot j =-6.5 time slots.

[0339] The second time difference (gNB Rx-Tx time difference) is defined as the time difference between the UTC time corresponding to the receive timing of the uplink time unit #j received by the network device and the UTC time corresponding to the transmit timing of the downlink time unit #i sent by the network device.

[0340] In this example, T gNB-RX -T gNB-TX =T gNB UL slot j –T gNB DL slot i =7 time slots.

[0341] It is also understandable that, in this example, the time slot is used as the unit for convenience of expression only, and the unit of the time difference is not limited to the time slot.

[0342] Therefore, the terminal device reports the UE Rx-Tx time difference corresponding to the TRP to the LMF as -6.5 slots, and the network device reports the gNB Rx-Tx time difference corresponding to the TRP to the LMF as 7 slots. The LMF sums the UE Rx-Tx time difference reported by the terminal device (-6.5 slots) and the gNB Rx-Tx time difference corresponding to the TRP reported by the network device (7 slots) to obtain the RTT between the terminal device and the TRP as 0.5 slots.

[0343] Example 3

[0344] Figure 15 shows a schematic diagram of the positioning scenario corresponding to the TRP group (or virtual TRP group) in the NTN scenario. As shown in the figure, the terminal device is configured with 8 TRP groups, where TRP group i includes TRP i corresponding to the service satellite position at time ti and TRP i' corresponding to the service satellite position at time ti'. The distance between TRP i and the terminal device is di, and the distance between TRP i' and the terminal device is di'; the value of i is i = 0, 1, 2, 3, 4, 5, 6, 7. In this example, TRP groups 0, 1, 2, and 3 are TRP groups corresponding to downlink PRS reception; TRP groups 4, 5, 6, and 7 are TRP groups corresponding to uplink positioning SRS transmission.

[0345] Figure 16 shows a schematic diagram of signal transmission corresponding to a positioning signal resource group (or TRP group or virtual TRP group) in an NTN scenario. In some cases, Figure 16 may be a schematic diagram of signal transmission in the scenario shown in Figure 15.

[0346] In this example, the downlink positioning signal is a downlink PRS, and the uplink positioning signal is an uplink SRS. This is not limited in the present application.

[0347] In some optional embodiments, it can be considered that: when the terminal device receives the downlink PRS corresponding to time t0 and time t0', its corresponding receiving timing error is small enough (for example, less than a threshold or within a specific error range or can be ignored); when the terminal device receives the downlink PRS corresponding to time t1 and time t1', its corresponding receiving timing error is small enough; when the terminal device receives the downlink PRS corresponding to time t2 and time t2', its corresponding receiving timing error is small enough; when the terminal device receives the downlink PRS corresponding to time t3 and time t3', its corresponding receiving timing error is small enough.

[0348] In some optional embodiments, it can be considered that: when the terminal device sends the uplink SRS corresponding to time t4 and time t4', the corresponding sending timing error is small enough (for example, less than a threshold or within a specific error range or can be ignored); when the terminal device sends the uplink SRS corresponding to time t5 and time t5', the corresponding sending timing error is small enough; when the terminal device sends the uplink SRS corresponding to time t6 and time t6', the corresponding sending timing error is small enough; when the terminal device sends the uplink SRS corresponding to time t7 and time t7', the corresponding sending timing error is small enough.

[0349] In some optional embodiments, it can be considered that: when the terminal device receives the downlink PRS corresponding to time t0 and time t0', its corresponding receiving timing error is small enough, and when the terminal device sends the uplink SRS corresponding to time t4 and time t4', its corresponding sending timing error is small enough; when the terminal device receives the downlink PRS corresponding to time t1 and time t1', its corresponding receiving timing error is small enough, and when the terminal device sends the uplink SRS corresponding to time t5 and time t5', its corresponding sending timing error is small enough; when the terminal device receives the downlink PRS corresponding to time t2 and time t2', its corresponding receiving timing error is small enough, and when the terminal device sends the uplink SRS corresponding to time t6 and time t6', its corresponding sending timing error is small enough; when the terminal device receives the downlink PRS corresponding to time t3 and time t3', its corresponding receiving timing error is small enough, and when the terminal device sends the uplink SRS corresponding to time t7 and time t7', its corresponding sending timing error is small enough.

[0350] In some optional embodiments, it can be considered that: when the network device sends the downlink PRS corresponding to time t0 and time t0', the corresponding sending timing error is sufficiently small (for example, less than a threshold or within a specific error range or can be ignored); when the network device sends the downlink PRS corresponding to time t1 and time t1', the corresponding sending timing error is sufficiently small; when the network device sends the downlink PRS corresponding to time t2 and time t2', the corresponding sending timing error is sufficiently small; when the network device sends the downlink PRS corresponding to time t3 and time t3', the corresponding sending timing error is sufficiently small.

[0351] In some optional embodiments, it can be considered that: when the network device receives the uplink SRS corresponding to time t4 and time t4', its corresponding receiving timing error is small enough (for example, less than a threshold or within a specific error range or can be ignored); when the network device receives the uplink SRS corresponding to time t5 and time t5', its corresponding receiving timing error is small enough; when the network device receives the uplink SRS corresponding to time t6 and time t6', its corresponding receiving timing error is small enough; when the network device receives the uplink SRS corresponding to time t7 and time t7', its corresponding receiving timing error is small enough.

[0352] In some optional embodiments, it can be considered that: when the network device sends the downlink PRS corresponding to time t0 and time t0', the corresponding sending timing error is small enough, and when the network device receives the uplink SRS corresponding to time t4 and time t4', the corresponding receiving timing error is small enough; when the network device sends the downlink PRS corresponding to time t1 and time t1', the corresponding sending timing error is small enough, and when the network device receives the uplink SRS corresponding to time t5 and time t5', the corresponding receiving timing error is small enough; when the network device sends the downlink PRS corresponding to time t2 and time t2', the corresponding sending timing error is small enough, and when the network device receives the uplink SRS corresponding to time t6 and time t6', the corresponding receiving timing error is small enough; when the network device sends the downlink PRS corresponding to time t3 and time t3', the corresponding sending timing error is small enough, and when the network device receives the uplink SRS corresponding to time t7 and time t7', the corresponding receiving timing error is small enough.

[0353] In some optional embodiments, the first time difference reported by the terminal device includes at least one of the following:

[0354] t04-t00, t04'-t00', t04-t00', t04'-t00, t05-t01, t05'-t01', t05-t01', t05'-t01, t06-t02, t06'-t02', t06-t02', t06'-t02, t07-t03, t07'-t03', t07-t03', t07'-t03.

[0355] In some optional embodiments, the first time information reported by the terminal device includes at least one of the following:

[0356] t00, t00', t01, t01', t02, t02', t03, t03', t04, t04', t05, t05', t06, t06', t07, t07'.

[0357] In some optional embodiments, the second time difference reported by the network device includes at least one of the following:

[0358] t4-t0, t4'-t0', t4-t0', t4'-t0, t5-t1, t5'-t1', t5-t1', t5'-t1, t6-t2, t6'-t2', t6-t2', t6'-t2, t7-t3, t7'-t3', t7-t3', t7'-t3.

[0359] In some optional embodiments, the second time information reported by the network device includes at least one of the following:

[0360] t0, t0', t1, t1', t2, t2', t3, t3', t4, t4', t5, t5', t6, t6', t7, t7'.

[0361] FIG17 shows a block diagram of a wireless communication device for positioning provided by an exemplary embodiment of the present application. The device can be implemented as a terminal device or a part of a terminal device through software, hardware, or a combination of both, and the device includes:

[0362] The receiving module 1720 is configured to receive first configuration information, where the first configuration information is used to determine M downlink positioning signal resources and / or N uplink positioning signal resources, where M and N are positive integers.

[0363] The sending module 1740 is configured to report first measurement information based on the first configuration information, where the first measurement information includes at least one of a first time difference and first time information.

[0364] In some embodiments, the M downlink positioning signal resources are downlink positioning signal resources in a first downlink positioning signal resource group among P downlink positioning signal resource groups, where P is a positive integer.

[0365] In some embodiments, the downlink positioning signal resources in the first downlink positioning signal resource group satisfy at least one of the following conditions, or the downlink positioning signal resources in each downlink positioning signal resource group in the P downlink positioning signal resource groups satisfy at least one of the following conditions:

[0366] A reception timing error when receiving a downlink positioning signal corresponding to a downlink positioning signal resource in the same downlink positioning signal resource group is within a first error range;

[0367] A sending timing error when sending the downlink positioning signal corresponding to the downlink positioning signal resource in the same downlink positioning signal resource group is within a second error range.

[0368] In some embodiments, the N uplink positioning signal resources are uplink positioning signal resources in a first uplink positioning signal resource group among Q uplink positioning signal resource groups, where Q is a positive integer.

[0369] In some embodiments, the uplink positioning signal resources in the first uplink positioning signal resource group satisfy at least one of the following conditions, or the uplink positioning signal resources in each uplink positioning signal resource group in the Q uplink positioning signal resource groups satisfy at least one of the following conditions:

[0370] A transmission timing error when transmitting an uplink positioning signal corresponding to an uplink positioning signal resource in the same uplink positioning signal resource group is within a third error range;

[0371] A reception timing error when receiving the uplink positioning signal corresponding to the uplink positioning signal resource in the uplink positioning signal resource group is within a fourth error range.

[0372] In some embodiments, the M downlink positioning signal resources and the N uplink positioning signal resources are positioning signal resources in a first positioning signal resource group among R positioning signal resource groups, where R is a positive integer.

[0373] In some embodiments, the positioning signal resources in the first positioning signal resource group satisfy at least one of the following conditions, or the positioning signal resources in each positioning signal resource group in the R positioning signal resource groups satisfy at least one of the following conditions:

[0374] A reception timing error when receiving a downlink positioning signal corresponding to a downlink positioning signal resource in the same positioning signal resource group is within a first error range;

[0375] A sending timing error when sending the downlink positioning signal corresponding to the downlink positioning signal resource in the same positioning signal resource group is within a second error range;

[0376] A transmission timing error when sending an uplink positioning signal corresponding to an uplink positioning signal resource in the same positioning signal resource group is within a third error range;

[0377] A reception timing error when receiving an uplink positioning signal corresponding to an uplink positioning signal resource in the same positioning signal resource group is within a fourth error range;

[0378] The sum of a reception timing error when receiving a downlink positioning signal corresponding to a downlink positioning signal resource in the same positioning signal resource group and a transmission timing error when sending an uplink positioning signal corresponding to an uplink positioning signal resource in the same positioning signal resource group is within a fifth error range;

[0379] The error of the sum of the sending timing error when sending the downlink positioning signal corresponding to the downlink positioning signal resource in the same positioning signal resource group and the receiving timing error when receiving the uplink positioning signal corresponding to the uplink positioning signal resource in the same positioning signal resource group is within the sixth error range.

[0380] In some embodiments, the first time difference is a difference between a reception timing of a downlink positioning signal and a transmission timing of an uplink positioning signal.

[0381] In some embodiments, the reception timing of the downlink positioning signal is the reception timing of the first downlink time unit, or the reception timing of the downlink positioning signal is the UTC time corresponding to the reception timing of the first downlink time unit; wherein, the first downlink time unit includes at least one time unit corresponding to at least one downlink positioning signal resource among the M downlink positioning signal resources.

[0382] In some embodiments, the first downlink time unit includes at least one of the following situations:

[0383] The first downlink time unit includes a time unit corresponding to a first downlink positioning signal resource among the M downlink positioning signal resources;

[0384] The first downlink time unit includes a time unit corresponding to the last downlink positioning signal resource among the M downlink positioning signal resources;

[0385] The first downlink time unit includes a time unit in the M downlink positioning signal resources for determining a reception timing of the downlink positioning signal.

[0386] In some embodiments, the sending timing of the uplink positioning signal is the sending timing of the first uplink time unit, or the sending timing of the uplink positioning signal is the UTC time corresponding to the sending timing of the first uplink time unit;

[0387] The first uplink time unit includes at least one time unit corresponding to at least one uplink positioning signal resource among the N uplink positioning signal resources.

[0388] In some embodiments, the first uplink time unit includes at least one of the following situations:

[0389] The first uplink time unit includes a time unit corresponding to a first uplink positioning signal resource among the N uplink positioning signal resources;

[0390] The first uplink time unit includes a time unit corresponding to the last uplink positioning signal resource among the N uplink positioning signal resources;

[0391] The first uplink time unit includes a time unit in the N uplink positioning signal resources for determining a sending timing of the uplink positioning signal.

[0392] In some embodiments, the time unit is at least one of a subframe, a time slot, a frame, a symbol group, and a symbol.

[0393] In some embodiments, the first time information includes at least one of the following:

[0394] First downlink time unit;

[0395] First uplink time unit;

[0396] UTC time corresponding to the first downlink time unit;

[0397] UTC time corresponding to the first uplink time unit;

[0398] The first downlink time unit is used to determine the reception timing of the downlink positioning signal, and the first uplink time unit is used to determine the transmission timing of the uplink positioning signal.

[0399] In some embodiments, the receiving module 1720 is further configured to receive at least one downlink positioning signal among the M downlink positioning signals according to the M downlink positioning signal resources;

[0400] And / or, the sending module 1740 is further configured to send at least one uplink positioning signal among the N uplink positioning signals according to the N uplink positioning signal resources.

[0401] In some embodiments, the receiving module 1720 is further configured to receive the M downlink positioning signals according to the M downlink positioning signal resources;

[0402] In some embodiments, the sending module 1740 is further configured to send the N uplink positioning signals according to the N uplink positioning signal resources.

[0403] In some embodiments, the receiving module 1720 is further used to receive the first configuration information sent by the network device; and / or receive the first configuration information sent by the LMF.

[0404] In some embodiments, the sending module 1740 is further used to report the first measurement information to the network device based on the first configuration information; and / or report the first measurement information to the LMF based on the first configuration information.

[0405] In some embodiments, the downlink positioning signal resource includes a downlink PRS resource.

[0406] In some embodiments, the uplink positioning signal resources include uplink positioning SRS resources and / or uplink MIMO SRS resources.

[0407] In some embodiments, the downlink positioning signal resource includes at least one of the following: downlink PRS resource, SSB resource, CSI-RS resource, DMRS resource. Optionally, the DMRS resource includes DMRS resource corresponding to PDSCH and / or DMRS resource corresponding to PDCCH.

[0408] In some embodiments, the uplink positioning signal resource includes at least one of the following: positioning SRS resources, MIMO SRS resources, PRACH resources, and DMRS resources. Optionally, the DMRS resources include DMRS resources corresponding to PUSCH and / or DMRS resources corresponding to PUCCH.

[0409] FIG18 shows a block diagram of a wireless communication device for positioning provided by an exemplary embodiment of the present application. The device can be implemented as a network device or a service satellite through software, hardware, or a combination of both. The device includes:

[0410] Acquisition module 1820 is configured to acquire first configuration information, where the first configuration information is used to determine M downlink positioning signal resources and / or N uplink positioning signal resources, where M and N are positive integers. In some embodiments, acquisition module 1820 may include a determination submodule configured to determine the first configuration information; in some embodiments, acquisition module 1820 may also include a reception submodule configured to receive the first configuration information.

[0411] The determining module 1840 is configured to determine second measurement information based on the first configuration information, and / or the sending module 1860 is configured to report the second measurement information, where the second measurement information includes at least one of a second time difference and second time information.

[0412] In some embodiments, the M downlink positioning signal resources are downlink positioning signal resources in a first downlink positioning signal resource group among P downlink positioning signal resource groups, where P is a positive integer.

[0413] In some embodiments, the downlink positioning signal resources in the first downlink positioning signal resource group satisfy at least one of the following conditions, or the downlink positioning signal resources in each downlink positioning signal resource group in the P downlink positioning signal resource groups satisfy at least one of the following conditions:

[0414] A reception timing error when receiving a downlink positioning signal corresponding to a downlink positioning signal resource in the same downlink positioning signal resource group is within a first error range;

[0415] A sending timing error when sending the downlink positioning signal corresponding to the downlink positioning signal resource in the same downlink positioning signal resource group is within a second error range.

[0416] In some embodiments, the N uplink positioning signal resources are uplink positioning signal resources in a first uplink positioning signal resource group among Q uplink positioning signal resource groups, where Q is a positive integer.

[0417] In some embodiments, the uplink positioning signal resources in the first uplink positioning signal resource group satisfy at least one of the following conditions, or the uplink positioning signal resources in each uplink positioning signal resource group in the Q uplink positioning signal resource groups satisfy at least one of the following conditions:

[0418] A transmission timing error when transmitting an uplink positioning signal corresponding to an uplink positioning signal resource in the same uplink positioning signal resource group is within a third error range;

[0419] A reception timing error when receiving the uplink positioning signal corresponding to the uplink positioning signal resource in the uplink positioning signal resource group is within a fourth error range.

[0420] In some embodiments, the M downlink positioning signal resources and the N uplink positioning signal resources are positioning signal resources in a first positioning signal resource group among R positioning signal resource groups, where R is a positive integer.

[0421] In some embodiments, the positioning signal resources in the first positioning signal resource group satisfy at least one of the following conditions, or the positioning signal resources in each positioning signal resource group in the R positioning signal resource groups satisfy at least one of the following conditions:

[0422] A reception timing error when receiving a downlink positioning signal corresponding to a downlink positioning signal resource in the same positioning signal resource group is within a first error range;

[0423] A sending timing error when sending the downlink positioning signal corresponding to the downlink positioning signal resource in the same positioning signal resource group is within a second error range;

[0424] A transmission timing error when sending an uplink positioning signal corresponding to an uplink positioning signal resource in the same positioning signal resource group is within a third error range;

[0425] A reception timing error when receiving an uplink positioning signal corresponding to an uplink positioning signal resource in the same positioning signal resource group is within a fourth error range;

[0426] The sum of a reception timing error when receiving a downlink positioning signal corresponding to a downlink positioning signal resource in the same positioning signal resource group and a transmission timing error when sending an uplink positioning signal corresponding to an uplink positioning signal resource in the same positioning signal resource group is within a fifth error range;

[0427] The error of the sum of the sending timing error when sending the downlink positioning signal corresponding to the downlink positioning signal resource in the same positioning signal resource group and the receiving timing error when receiving the uplink positioning signal corresponding to the uplink positioning signal resource in the same positioning signal resource group is within the sixth error range.

[0428] In some embodiments, the second time difference is a difference between a reception timing of an uplink positioning signal and a transmission timing of a downlink positioning signal.

[0429] In some embodiments, the sending timing of the downlink positioning signal is the sending timing of the second downlink time unit, or the sending timing of the downlink positioning signal is the UTC time corresponding to the sending timing of the second downlink time unit;

[0430] The second downlink time unit includes at least one time unit corresponding to at least one downlink positioning signal resource among the M downlink positioning signal resources.

[0431] In some embodiments, the second downlink time unit includes at least one of the following situations:

[0432] The second downlink time unit includes a time unit corresponding to a first downlink positioning signal resource among the M downlink positioning signal resources;

[0433] The second downlink time unit includes a time unit corresponding to the last downlink positioning signal resource among the M downlink positioning signal resources;

[0434] The second downlink time unit includes a time unit in the M downlink positioning signal resources for determining a sending timing of the downlink positioning signal.

[0435] In some embodiments, the reception timing of the uplink positioning signal is the reception timing of the second uplink time unit, or the reception timing of the uplink positioning signal is the UTC time corresponding to the reception timing of the second uplink time unit;

[0436] The second uplink time unit includes at least one time unit corresponding to at least one uplink positioning signal resource among the N uplink positioning signal resources.

[0437] In some embodiments, the second uplink time unit includes at least one of the following situations:

[0438] The second uplink time unit includes a time unit corresponding to a first uplink positioning signal resource among the N uplink positioning signal resources;

[0439] The second uplink time unit includes a time unit corresponding to the last uplink positioning signal resource among the N uplink positioning signal resources;

[0440] The second uplink time unit includes a time unit in the N uplink positioning signal resources for determining a reception timing of the uplink positioning signal.

[0441] In some embodiments, the time unit is at least one of a subframe, a time slot, a frame, a symbol group, and a symbol.

[0442] In some embodiments, the second time information includes at least one of the following:

[0443] Second downlink time unit;

[0444] Second uplink time unit;

[0445] UTC time corresponding to the second downlink time unit;

[0446] UTC time corresponding to the second uplink time unit;

[0447] The second downlink time unit is used to determine the sending timing of the downlink positioning signal, and the second uplink time unit is used to determine the receiving timing of the uplink positioning signal.

[0448] In some embodiments, the second downlink time unit is determined according to at least one of the following timings: downlink timing on the service satellite side, downlink timing on the reference point, and downlink timing on the network device side.

[0449] The second uplink time unit is determined according to at least one of the following timings: an uplink timing on the satellite side, an uplink timing on the reference point, and an uplink timing on the network device side.

[0450] In some embodiments, the apparatus further includes: a receiving module 1880;

[0451] The sending module 1860 is used to send at least one downlink positioning signal among the M downlink positioning signals according to the M downlink positioning signal resources; and / or, the receiving module 1880 is used to receive at least one uplink positioning signal among the N uplink positioning signals according to the N uplink positioning signal resources.

[0452] In some embodiments, the sending module 1860 is used to send the M downlink positioning signals according to the M downlink positioning signal resources; the receiving module 1880 is used to receive the N uplink positioning signals according to the N uplink positioning signal resources.

[0453] In some embodiments, the acquisition module 1820 includes: a determination submodule, configured to determine the first configuration information;

[0454] And / or, a receiving submodule, used to receive the first configuration information sent by LMF.

[0455] In some embodiments, the sending module 1860 is configured to report the second measurement information to the LMF based on the first configuration information.

[0456] In some embodiments, the downlink positioning signal resource includes a downlink PRS resource; and / or,

[0457] The uplink positioning signal resources include uplink positioning SRS resources and / or uplink MIMO SRS resources.

[0458] In some embodiments, the downlink positioning signal resource includes at least one of the following: downlink PRS resource, SSB resource, CSI-RS resource, DMRS resource. Optionally, the DMRS resource includes DMRS resource corresponding to PDSCH and / or DMRS resource corresponding to PDCCH.

[0459] In some embodiments, the uplink positioning signal resource includes at least one of the following: positioning SRS resources, MIMO SRS resources, PRACH resources, and DMRS resources. Optionally, the DMRS resources include DMRS resources corresponding to PUSCH and / or DMRS resources corresponding to PUCCH.

[0460] It should be noted that the apparatus provided in the above embodiments is merely exemplified by the division of the above functional modules. In actual applications, the above functions can be distributed among different functional modules as needed, that is, the internal structure of the apparatus can be divided into different functional modules to complete all or part of the functions described above. In addition, the apparatus and method embodiments provided in the above embodiments are based on the same concept. The implementation process is detailed in the method embodiments and will not be repeated here.

[0461] Figure 19 shows a structural diagram of a communication device (terminal device or network device or service satellite) provided by an exemplary embodiment of the present application. The communication device 190 includes: a processor 1901, a receiver 1902, a transmitter 1903, a memory 1904 and a bus 1905.

[0462] The processor 1901 includes one or more processing cores. The processor 1901 executes various functional applications and information processing by running software programs and modules.

[0463] The receiver 1902 and the transmitter 1903 may be implemented as a communication component, which may be a communication chip.

[0464] The memory 1904 is connected to the processor 1901 via a bus 1905 .

[0465] The memory 1904 may be used to store at least one instruction, and the processor 1901 may be used to execute the at least one instruction to implement each step in the above method embodiment.

[0466] In addition, the memory 1904 can be implemented by any type of volatile or non-volatile storage device or a combination thereof. Volatile or non-volatile storage devices include but are not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static random access memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, and programmable read-only memory (PROM).

[0467] When the communication device is implemented as a terminal device, the processor and transceiver in the communication device involved in the embodiments of the present application can be implemented together as a communication chip, or the transceiver can form a communication chip alone. The transmitter in the transceiver performs the sending step performed by the terminal device in any of the above-mentioned methods, the receiver in the transceiver performs the receiving step performed by the terminal device in any of the above-mentioned methods, and the processor performs steps other than the sending and receiving steps, which are not further described here.

[0468] When the communication device is implemented as an access network device, the processor and transceiver in the communication device involved in the embodiments of the present application can be implemented together as a communication chip, or the transceiver can form a communication chip alone. The transmitter in the transceiver performs the sending step performed by the access network device in any of the above-mentioned methods, the receiver in the transceiver performs the receiving step performed by the access network device in any of the above-mentioned methods, and the processor performs steps other than the sending and receiving steps, which are not further described here.

[0469] Among them, when the communication device is implemented as a core network device (such as LMF), the processor and transceiver in the communication device involved in the embodiment of the present application can be implemented together as a communication chip, or the transceiver can form a communication chip alone. Among them, the transmitter in the transceiver performs the sending step performed by the LMF in any of the methods shown above, the receiver in the transceiver performs the receiving step performed by the LMF in any of the methods shown above, and the processor performs steps other than the sending and receiving steps, which are not repeated here.

[0470] When the communication device is implemented as a serving satellite device, the processor and transceiver in the communication device according to the embodiments of the present application may be implemented together as a communication chip, or the transceiver may form a communication chip alone. The transmitter in the transceiver performs the sending step performed by the serving satellite device in any of the above-described methods, the receiver in the transceiver performs the receiving step performed by the serving satellite device in any of the above-described methods, and the processor performs steps other than the sending and receiving steps, which are not further described here.

[0471] In an exemplary embodiment, a computer-readable storage medium is also provided, in which at least one instruction, at least one program, code set or instruction set is stored. The at least one instruction, the at least one program, the code set or instruction set is loaded and executed by the processor to implement the wireless communication method for positioning provided by the above-mentioned various method embodiments.

[0472] In an exemplary embodiment, a chip is also provided, which includes a programmable logic circuit and / or program instructions. When the chip runs on a communication device, it is used to implement the wireless communication method for positioning provided by the above-mentioned various method embodiments.

[0473] In an exemplary embodiment, a computer program product or computer program is also provided, which includes at least one instruction, at least one program, code set or instruction set. When the at least one instruction, at least one program, code set or instruction set is run on a processor of a communication device, the communication device executes the above-mentioned wireless communication method for positioning.

[0474] Those skilled in the art will appreciate that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any media that facilitates the transmission of computer programs from one place to another. The storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0475] The above description is merely an exemplary embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A wireless communication method for positioning, characterized in that: The method is executed by a terminal device, and includes: Receive first configuration information, where the first configuration information is used to determine M downlink positioning signal resources and / or N uplink positioning signal resources, where M and N are positive integers; First measurement information is reported based on the first configuration information, where the first measurement information includes at least one of a first time difference and first time information.

2. The method according to claim 1, characterized in that The M downlink positioning signal resources are downlink positioning signal resources in a first downlink positioning signal resource group among P downlink positioning signal resource groups, where P is a positive integer.

3. The method according to claim 2, characterized in that The downlink positioning signal resources in the first downlink positioning signal resource group satisfy at least one of the following conditions, or the downlink positioning signal resources in each downlink positioning signal resource group in the P downlink positioning signal resource groups satisfy at least one of the following conditions: A reception timing error when receiving a downlink positioning signal corresponding to a downlink positioning signal resource in the same downlink positioning signal resource group is within a first error range; A sending timing error when sending the downlink positioning signal corresponding to the downlink positioning signal resource in the same downlink positioning signal resource group is within a second error range.

4. The method according to claim 1, wherein The N uplink positioning signal resources are uplink positioning signal resources in a first uplink positioning signal resource group among Q uplink positioning signal resource groups, where Q is a positive integer.

5. The method according to claim 4, characterized in that The uplink positioning signal resources in the first uplink positioning signal resource group satisfy at least one of the following conditions, or the uplink positioning signal resources in each uplink positioning signal resource group in the Q uplink positioning signal resource groups satisfy at least one of the following conditions: A transmission timing error when transmitting an uplink positioning signal corresponding to an uplink positioning signal resource in the same uplink positioning signal resource group is within a third error range; A reception timing error when receiving the uplink positioning signal corresponding to the uplink positioning signal resource in the uplink positioning signal resource group is within a fourth error range.

6. The method according to claim 1, wherein The M downlink positioning signal resources and the N uplink positioning signal resources are positioning signal resources in a first positioning signal resource group among R positioning signal resource groups, where R is a positive integer.

7. The method according to claim 6, characterized in that The positioning signal resources in the first positioning signal resource group satisfy at least one of the following conditions, or the positioning signal resources in each positioning signal resource group in the R positioning signal resource groups satisfy at least one of the following conditions: A reception timing error when receiving a downlink positioning signal corresponding to a downlink positioning signal resource in the same positioning signal resource group is within a first error range; A sending timing error when sending the downlink positioning signal corresponding to the downlink positioning signal resource in the same positioning signal resource group is within a second error range; A transmission timing error when sending an uplink positioning signal corresponding to an uplink positioning signal resource in the same positioning signal resource group is within a third error range; A reception timing error when receiving an uplink positioning signal corresponding to an uplink positioning signal resource in the same positioning signal resource group is within a fourth error range; The sum of a reception timing error when receiving a downlink positioning signal corresponding to a downlink positioning signal resource in the same positioning signal resource group and a transmission timing error when sending an uplink positioning signal corresponding to an uplink positioning signal resource in the same positioning signal resource group is within a fifth error range; The error of the sum of the sending timing error when sending the downlink positioning signal corresponding to the downlink positioning signal resource in the same positioning signal resource group and the receiving timing error when receiving the uplink positioning signal corresponding to the uplink positioning signal resource in the same positioning signal resource group is within the sixth error range.

8. The method according to any one of claims 1 to 7, characterized in that: The first time difference is a difference between a reception timing of a downlink positioning signal and a transmission timing of an uplink positioning signal.

9. The method according to claim 8, characterized in that The reception timing of the downlink positioning signal is the reception timing of the first downlink time unit, or the reception timing of the downlink positioning signal is the coordinated universal time (UTC) time corresponding to the reception timing of the first downlink time unit; The first downlink time unit includes at least one time unit corresponding to at least one downlink positioning signal resource among the M downlink positioning signal resources.

10. The method according to claim 9, characterized in that The first downlink time unit includes at least one of the following situations: The first downlink time unit includes a time unit corresponding to a first downlink positioning signal resource among the M downlink positioning signal resources; The first downlink time unit includes a time unit corresponding to the last downlink positioning signal resource among the M downlink positioning signal resources; The first downlink time unit includes a time unit in the M downlink positioning signal resources for determining a reception timing of the downlink positioning signal.

11. The method according to any one of claims 8 to 10, characterized in that: The sending timing of the uplink positioning signal is the sending timing of the first uplink time unit, or the sending timing of the uplink positioning signal is the UTC time corresponding to the sending timing of the first uplink time unit; The first uplink time unit includes at least one time unit corresponding to at least one uplink positioning signal resource among the N uplink positioning signal resources.

12. The method according to claim 11, characterized in that The first uplink time unit includes at least one of the following situations: The first uplink time unit includes a time unit corresponding to a first uplink positioning signal resource among the N uplink positioning signal resources; The first uplink time unit includes a time unit corresponding to the last uplink positioning signal resource among the N uplink positioning signal resources; The first uplink time unit includes a time unit in the N uplink positioning signal resources for determining a sending timing of the uplink positioning signal.

13. The method according to any one of claims 9 to 12, characterized in that: The time unit is at least one of a subframe, a time slot, a frame, a symbol group, and a symbol.

14. The method according to any one of claims 1 to 13, characterized in that: The first time information includes at least one of the following: First downlink time unit; First uplink time unit; UTC time corresponding to the first downlink time unit; UTC time corresponding to the first uplink time unit; The first downlink time unit is used to determine the reception timing of the downlink positioning signal, and the first uplink time unit is used to determine the transmission timing of the uplink positioning signal.

15. The method according to any one of claims 1 to 14, characterized in that: The method further comprises: receiving at least one downlink positioning signal among the M downlink positioning signals according to the M downlink positioning signal resources; and / or, At least one uplink positioning signal among the N uplink positioning signals is sent according to the N uplink positioning signal resources.

16. The method according to claim 15, characterized in that The receiving at least one downlink positioning signal among the M downlink positioning signals according to the M downlink positioning signal resources includes: receiving the M downlink positioning signals according to the M downlink positioning signal resources; The sending at least one uplink positioning signal among the N uplink positioning signals according to the N uplink positioning signal resources includes: The N uplink positioning signals are sent according to the N uplink positioning signal resources.

17. The method according to any one of claims 1 to 16, characterized in that: The receiving first configuration information includes: Receive the first configuration information sent by the network device; and / or receive the first configuration information sent by the LMF.

18. The method according to any one of claims 1 to 17, characterized in that: The reporting of the first measurement information based on the first configuration information includes: Report the first measurement information to the network device based on the first configuration information; and / or report the first measurement information to the LMF based on the first configuration information.

19. The method according to any one of claims 1 to 18, characterized in that The downlink positioning signal resource includes at least one of the following: a downlink positioning reference signal PRS resource, a synchronization signal block SSB resource, a channel state information reference signal CSI-RS resource, and a demodulation reference signal DMRS resource.

20. The method according to any one of claims 1 to 19, characterized in that The uplink positioning signal resource includes at least one of the following: an uplink positioning sounding reference signal SRS resource, a multiple-input multiple-output MIMO SRS resource, a physical random access channel PRACH resource, and a demodulation reference signal DMRS resource.

21. A wireless communication method for positioning, characterized in that: The method is performed by a network device or a service satellite device, and includes: Obtaining first configuration information, where the first configuration information is used to determine M downlink positioning signal resources and / or N uplink positioning signal resources, where M and N are positive integers; Second measurement information is determined or reported based on the first configuration information, where the second measurement information includes at least one of a second time difference and second time information.

22. The method according to claim 21, characterized in that The M downlink positioning signal resources are downlink positioning signal resources in a first downlink positioning signal resource group among P downlink positioning signal resource groups, where P is a positive integer.

23. The method according to claim 22, characterized in that The downlink positioning signal resources in the first downlink positioning signal resource group satisfy at least one of the following conditions, or the downlink positioning signal resources in each downlink positioning signal resource group in the P downlink positioning signal resource groups satisfy at least one of the following conditions: A reception timing error when receiving a downlink positioning signal corresponding to a downlink positioning signal resource in the same downlink positioning signal resource group is within a first error range; A sending timing error when sending the downlink positioning signal corresponding to the downlink positioning signal resource in the same downlink positioning signal resource group is within a second error range.

24. The method according to claim 21, characterized in that The N uplink positioning signal resources are uplink positioning signal resources in a first uplink positioning signal resource group among Q uplink positioning signal resource groups, where Q is a positive integer.

25. The method according to claim 24, characterized in that The uplink positioning signal resources in the first uplink positioning signal resource group satisfy at least one of the following conditions, or the uplink positioning signal resources in each uplink positioning signal resource group in the Q uplink positioning signal resource groups satisfy at least one of the following conditions: A transmission timing error when transmitting an uplink positioning signal corresponding to an uplink positioning signal resource in the same uplink positioning signal resource group is within a third error range; A reception timing error when receiving the uplink positioning signal corresponding to the uplink positioning signal resource in the uplink positioning signal resource group is within a fourth error range.

26. The method according to claim 21, characterized in that The M downlink positioning signal resources and the N uplink positioning signal resources are positioning signal resources in a first positioning signal resource group among R positioning signal resource groups, where R is a positive integer.

27. The method according to claim 26, characterized in that The positioning signal resources in the first positioning signal resource group satisfy at least one of the following conditions, or the positioning signal resources in each positioning signal resource group in the R positioning signal resource groups satisfy at least one of the following conditions: A reception timing error when receiving a downlink positioning signal corresponding to a downlink positioning signal resource in the same positioning signal resource group is within a first error range; A sending timing error when sending the downlink positioning signal corresponding to the downlink positioning signal resource in the same positioning signal resource group is within a second error range; A transmission timing error when sending an uplink positioning signal corresponding to an uplink positioning signal resource in the same positioning signal resource group is within a third error range; A reception timing error when receiving an uplink positioning signal corresponding to an uplink positioning signal resource in the same positioning signal resource group is within a fourth error range; The sum of a reception timing error when receiving a downlink positioning signal corresponding to a downlink positioning signal resource in the same positioning signal resource group and a transmission timing error when sending an uplink positioning signal corresponding to an uplink positioning signal resource in the same positioning signal resource group is within a fifth error range; The error of the sum of the sending timing error when sending the downlink positioning signal corresponding to the downlink positioning signal resource in the same positioning signal resource group and the receiving timing error when receiving the uplink positioning signal corresponding to the uplink positioning signal resource in the same positioning signal resource group is within the sixth error range.

28. The method according to any one of claims 21 to 27, characterized in that The second time difference is a difference between a reception timing of an uplink positioning signal and a transmission timing of a downlink positioning signal.

29. The method according to claim 28, characterized in that The sending timing of the downlink positioning signal is the sending timing of the second downlink time unit, or the sending timing of the downlink positioning signal is the UTC time corresponding to the sending timing of the second downlink time unit; The second downlink time unit includes at least one time unit corresponding to at least one downlink positioning signal resource among the M downlink positioning signal resources.

30. The method according to claim 29, wherein The second downlink time unit includes at least one of the following situations: The second downlink time unit includes a time unit corresponding to a first downlink positioning signal resource among the M downlink positioning signal resources; The second downlink time unit includes a time unit corresponding to the last downlink positioning signal resource among the M downlink positioning signal resources; The second downlink time unit includes a time unit in the M downlink positioning signal resources for determining a sending timing of the downlink positioning signal.

31. The method according to any one of claims 28 to 30, characterized in that The reception timing of the uplink positioning signal is the reception timing of the second uplink time unit, or the reception timing of the uplink positioning signal is the UTC time corresponding to the reception timing of the second uplink time unit; The second uplink time unit includes at least one time unit corresponding to at least one uplink positioning signal resource among the N uplink positioning signal resources.

32. The method according to claim 31, characterized in that The second uplink time unit includes at least one of the following situations: The second uplink time unit includes a time unit corresponding to a first uplink positioning signal resource among the N uplink positioning signal resources; The second uplink time unit includes a time unit corresponding to the last uplink positioning signal resource among the N uplink positioning signal resources; The second uplink time unit includes a time unit in the N uplink positioning signal resources for determining a reception timing of the uplink positioning signal.

33. The method according to any one of claims 29 to 32, characterized in that The time unit is at least one of a subframe, a time slot, a frame, a symbol group, and a symbol.

34. The method according to any one of claims 20 to 33, characterized in that The second time information includes at least one of the following: Second downlink time unit; Second uplink time unit; UTC time corresponding to the second downlink time unit; UTC time corresponding to the second uplink time unit; The second downlink time unit is used to determine the sending timing of the downlink positioning signal, and the second uplink time unit is used to determine the receiving timing of the uplink positioning signal.

35. The method according to any one of claims 29 to 34, characterized in that The second downlink time unit is determined according to at least one of the following timings: a downlink timing of the service satellite side, a downlink timing of the reference point, and a downlink timing of the network device side; The second uplink time unit is determined according to at least one of the following timings: an uplink timing of the service satellite side, an uplink timing of the reference point, and an uplink timing of the network device side.

36. The method according to any one of claims 21 to 35, characterized in that The method further comprises: Sending at least one downlink positioning signal among the M downlink positioning signals according to the M downlink positioning signal resources; and / or, At least one uplink positioning signal among the N uplink positioning signals is received according to the N uplink positioning signal resources.

37. The method according to claim 36, wherein The sending at least one downlink positioning signal among the M downlink positioning signals according to the M downlink positioning signal resources includes: Sending the M downlink positioning signals according to the M downlink positioning signal resources; The receiving at least one uplink positioning signal among N uplink positioning signals according to the N uplink positioning signal resources includes: The N uplink positioning signals are received according to the N uplink positioning signal resources.

38. The method according to any one of claims 21 to 37, characterized in that The acquiring of the first configuration information includes: Determine the first configuration information; and / or receive the first configuration information sent by LMF.

39. The method according to any one of claims 21 to 38, characterized in that Reporting the second measurement information based on the first configuration information includes: Report the second measurement information to the LMF based on the first configuration information.

40. The method according to any one of claims 21 to 39, characterized in that The downlink positioning signal resource includes at least one of the following: a downlink positioning reference signal PRS resource, a synchronization signal block SSB resource, a channel state information reference signal CSI-RS resource, and a demodulation reference signal DMRS resource; and / or, The uplink positioning signal resource includes at least one of the following: an uplink positioning sounding reference signal SRS resource, a multiple-input multiple-output MIMOS RS resource, a physical random access channel PRACH resource, and a demodulation reference signal DMRS resource.

41. A wireless communication device for positioning, characterized in that: The device comprises: A receiving module, configured to receive first configuration information, where the first configuration information is used to determine M downlink positioning signal resources and / or N uplink positioning signal resources, where M and N are positive integers; A sending module is configured to report first measurement information based on the first configuration information, where the first measurement information includes at least one of a first time difference and first time information.

42. A wireless communication device for positioning, characterized in that: The device comprises: an acquisition module, configured to acquire first configuration information, where the first configuration information is used to determine M downlink positioning signal resources and / or N uplink positioning signal resources, where M and N are positive integers; a determining module, configured to determine second measurement information based on the first configuration information, or a sending module, configured to report the second measurement information based on the first configuration information; The second measurement information includes at least one of a second time difference and second time information.

43. A terminal device, characterized in that: The terminal device includes: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the wireless communication method for positioning as described in any one of claims 1 to 20 above.

44. A network device or service satellite, characterized in that: The network device or service satellite includes: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the wireless communication method for positioning as described in any one of claims 21 to 40 above.

45. A positioning system, characterized in that The positioning system is applied to an NTN network including a service satellite, and the positioning system includes: the service satellite, a terminal device, and a network device; the positioning system performs positioning based on M downlink positioning signal resources and / or N uplink positioning signal resources, where M and N are positive integers; The M downlink positioning signal resources and / or the N uplink positioning signal resources meet at least one of the following conditions: The M downlink positioning signal resources have a one-to-one correspondence with the service satellite positions at M moments; The M downlink positioning signal resources have a one-to-one correspondence with the M virtual TRPs; The service satellite positions at the M moments have a one-to-one correspondence with the M virtual TRPs; The N uplink positioning signal resources have a one-to-one correspondence with the service satellite positions at N moments; The N uplink positioning signal resources have a one-to-one correspondence with the N virtual TRPs; The service satellite positions at the N moments have a one-to-one correspondence with the N virtual TRPs; When M is an integer greater than 1, the M moments are different moments; when N is an integer greater than 1, the N moments are different moments.

46. ​​The system according to claim 45, wherein: The positioning system uses a first positioning signal resource group, wherein the first positioning signal resource group includes: the M downlink positioning signal resources and / or the N uplink positioning signal resources; or The positioning system includes a first virtual TRP group, wherein the first virtual TRP group includes: the M virtual TRPs, and / or the N virtual TRPs; Alternatively, the positioning system includes a first serving satellite position group, and the first serving satellite position group includes: the serving satellite positions at the M moments and / or the serving satellite positions at the N moments.

47. The system according to claim 45 or 46, characterized in that The sending timing errors of the downlink positioning signals corresponding to the M downlink positioning signal resources are within the second error range, and / or the receiving timing errors of the downlink positioning signals corresponding to the M downlink positioning signal resources are within the first error range; Alternatively, the sending timing errors of the downlink positioning signals corresponding to the M virtual TRPs are within the second error range, and / or the receiving timing errors of the downlink positioning signals corresponding to the M virtual TRPs are within the first error range; Alternatively, the sending timing error of the downlink positioning signal corresponding to the service satellite position at the M moments is within the second error range, and / or the receiving timing error of the downlink positioning signal corresponding to the service satellite position at the M moments is within the first error range.

48. The system according to any one of claims 45 to 47, characterized in that The sending timing errors of the uplink positioning signals corresponding to the N uplink positioning signal resources are within a third error range, and / or the receiving timing errors of the uplink positioning signals corresponding to the N uplink positioning signal resources are within a fourth error range; Alternatively, the sending timing errors of the uplink positioning signals corresponding to the N virtual TRPs are within the third error range, and / or the receiving timing errors of the uplink positioning signals corresponding to the N virtual TRPs are within the fourth error range; Alternatively, the sending timing error of the uplink positioning signal corresponding to the service satellite position at the N moments is within the third error range, and / or the receiving timing error of the uplink positioning signal corresponding to the service satellite position at the N moments is within the fourth error range.

49. The system according to any one of claims 45 to 47, characterized in that An error between the sum of a reception timing error of a downlink positioning signal corresponding to the downlink positioning signal resources in the first positioning signal resource group and a transmission timing error of an uplink positioning signal corresponding to the uplink positioning signal resources is within a fifth error range, and / or an error between the sum of a transmission timing error of a downlink positioning signal corresponding to the downlink positioning signal resources in the first positioning signal resource group and a reception timing error of an uplink positioning signal corresponding to the uplink positioning signal resources is within a sixth error range; Alternatively, the error of the sum of the reception timing errors of the downlink positioning signals corresponding to the M virtual TRPs in the first virtual TRP group and the transmission timing errors of the uplink positioning signals corresponding to the N virtual TRPs is within the fifth error range, and / or the error of the sum of the transmission timing errors of the downlink positioning signals corresponding to the M virtual TRPs in the first virtual TRP group and the reception timing errors of the uplink positioning signals corresponding to the N virtual TRPs is within the sixth error range; Alternatively, the error of the sum of the reception timing errors of the downlink positioning signals corresponding to the service satellite positions at M moments in the first service satellite position group and the transmission timing errors of the uplink positioning signals corresponding to the service satellite positions at N moments is within the fifth error range, and / or the error of the sum of the transmission timing errors of the downlink positioning signals corresponding to the service satellite positions at M moments in the first service satellite position group and the reception timing errors of the uplink positioning signals corresponding to the service satellite positions at N moments is within the sixth error range.

50. A computer-readable storage medium, characterized in that The computer-readable storage medium stores executable instructions, which are loaded and executed by a processor to implement the wireless communication method for positioning according to any one of claims 1 to 40.

51. A chip, characterized in that: The chip includes a programmable logic circuit and / or program instructions, and a communication device equipped with the chip is used to implement the wireless communication method for positioning according to any one of claims 1 to 40 when running.

52. A computer program product or a computer program, characterized in that The computer program product or computer program stores executable instructions, and the executable instructions are loaded and executed by a processor to implement the wireless communication method for positioning according to any one of claims 1 to 40.

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