Positioning purpose reference signal transmission method, apparatus and storage medium

Abstract

The present disclosure relates to a positioning purpose reference signal transmission method, device and storage medium. The positioning purpose reference signal transmission method is applied to a terminal and includes: obtaining first information, wherein the first information is used to indicate a first carrier group for transmitting a positioning purpose reference signal, and the first carrier group includes at least two carriers. The present disclosure can improve positioning accuracy.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a method, apparatus and storage medium for transmitting reference signals for positioning purposes. Background Technology

[0002] 5G R16 introduces various positioning technologies to achieve terminal location. For some of these technologies, the system defines reference signals for positioning purposes. For downlink, a Positioning Reference Signaling (PRS) is defined. For uplink, a Sounding Reference Signal (SRS) is introduced for positioning measurements.

[0003] In related technologies, the reference signal for positioning purposes is transmitted through the frequency layer, but this cannot achieve sufficient positioning accuracy. Summary of the Invention

[0004] To overcome the problems existing in related technologies, this disclosure provides a method, apparatus and storage medium for transmitting reference signals for positioning purposes.

[0005] According to a first aspect of the present disclosure, a method for transmitting a positioning reference signal is provided, applied to a terminal, comprising: acquiring first information, the first information being used to indicate a first carrier group for transmitting a positioning reference signal, the first carrier group including at least two carriers.

[0006] In one embodiment, the method further includes: receiving second information, the second information being used to indicate the priority of each of the at least two carriers in transmitting the positioning reference signal relative to the transmission of other channels / signals.

[0007] In one embodiment, the positioning reference signal is transmitted with the same priority on each of the at least two carriers.

[0008] In one embodiment, the positioning reference signal is transmitted with different priorities on different carriers among the at least two carriers.

[0009] In one embodiment, the method further includes: determining a second carrier group in the first carrier group, wherein each carrier in the second carrier group has a higher priority for transmitting positioning reference signals than for transmitting other channels / signals.

[0010] In one embodiment, the method further includes: in response to determining that conditions for transmitting the positioning purpose reference signal are met, transmitting the positioning purpose reference signal via the second carrier group.

[0011] In one embodiment, the positioning reference signal includes a downlink positioning reference signal, and the transmission of the positioning reference signal through the second carrier group includes: receiving the downlink positioning reference signal on each carrier of the second carrier group; measuring the downlink positioning reference signal and reporting the measurement results and second carrier group information, wherein the second carrier group information includes a carrier group identifier or a carrier identifier of each carrier included in the second carrier group.

[0012] In one embodiment, the positioning reference signal includes an uplink positioning reference signal, and transmitting the positioning reference signal through the second carrier group includes: transmitting the uplink positioning reference signal through each carrier in the second carrier group.

[0013] In one embodiment, the method further includes: stopping the transmission of the positioning reference signal via the second carrier group in response to determining that the condition for transmitting the positioning reference signal is not met.

[0014] In one implementation, the conditions include at least one of the following:

[0015] The sum of the carrier bandwidths of the second carrier group is greater than or equal to the first threshold; the ratio between the sum of the carrier bandwidths of the second carrier group and the sum of the carrier bandwidths of the first carrier group is greater than or equal to the second threshold; the number of intervals between carriers in the second carrier group is less than or equal to the third threshold; the frequency domain interval between carriers in the second carrier group is less than or equal to the fourth threshold; the second carrier group contains a carrier combination supported by the terminal for transmitting reference signals for positioning purposes.

[0016] In one embodiment, obtaining the first information includes: obtaining the first information sent by the core network device.

[0017] In one embodiment, receiving the second information includes receiving second information sent by a wireless access network device.

[0018] In one implementation, the other channels / signals include at least one of the following:

[0019] The serving cell's SSB, the neighboring cell's SSB, the URLLC service's PDCCH and / or PDSCH, the other services' PDCCH and / or PDSCH that are different from the URLLC service, DMRS, CSI-RS, PUCCH and / or PUSCH, and PRACH.

[0020] In one implementation, at least one of the first threshold value, the second threshold value, the third threshold value, and the fourth threshold value is determined by one of the following methods:

[0021] Determined based on indication information received from core network equipment; determined based on indication information received from radio access network equipment; determined based on threshold values ​​stored in the terminal.

[0022] In one embodiment, the method further includes: sending at least one carrier combination information supported by the terminal for transmitting positioning reference signals to a core network device or a wireless access network device, wherein the carrier combination information includes a carrier combination identifier or carrier identifiers of each carrier included in the carrier combination.

[0023] According to a second aspect of the present disclosure, a method for transmitting a positioning reference signal is provided, applied to a wireless access network device, comprising: sending second information to a terminal, the second information being used to indicate the priority of each carrier in at least two carriers of a first carrier group in transmitting a positioning reference signal relative to the transmission of other channels / signals.

[0024] In one embodiment, the positioning reference signal is transmitted with the same priority on each of the at least two carriers.

[0025] In one embodiment, the positioning reference signal is transmitted with different priorities on different carriers among the at least two carriers.

[0026] In one embodiment, the method further includes: determining a second carrier group in the first carrier group, wherein each carrier in the second carrier group has a higher priority for transmitting positioning reference signals than for transmitting other channels / signals.

[0027] In one embodiment, the method further includes: in response to determining that the conditions for transmitting the positioning purpose reference signal are met, transmitting the positioning purpose reference signal via the second carrier group.

[0028] In one embodiment, the positioning reference signal includes a downlink positioning reference signal, and transmitting the positioning reference signal through the second carrier group includes: sending the downlink positioning reference signal on each carrier of the second carrier group; acquiring the downlink positioning reference signal measurement result reported by the terminal and the second carrier group information, wherein the second carrier group information includes a carrier group identifier or the carrier identifiers of each carrier included in the second carrier group.

[0029] In one embodiment, the positioning reference signal includes an uplink positioning reference signal, and transmitting the positioning reference signal through the second carrier group includes: receiving the uplink positioning reference signal through each carrier in the second carrier group; measuring the uplink positioning reference signal received on each carrier in the second carrier group, and reporting the measurement results and second carrier group information, wherein the second carrier group information includes a carrier group identifier or a carrier identifier of each carrier included in the second carrier group.

[0030] In one embodiment, the method further includes: stopping the transmission of the positioning reference signal via the second carrier group in response to determining that the condition for transmitting the positioning reference signal is not met.

[0031] In one embodiment, the conditions include at least one of the following: the sum of the carrier bandwidths of the second carrier group is greater than or equal to a first threshold; the ratio between the sum of the carrier bandwidths of the second carrier group and the sum of the carrier bandwidths of the first carrier group is greater than or equal to a second threshold; the number of intervals between carriers in the second carrier group is less than or equal to a third threshold; the frequency domain interval between carriers in the second carrier group is less than or equal to a fourth threshold; and the second carrier group contains a carrier combination supported by the terminal for transmitting reference signals for positioning purposes.

[0032] In one implementation, the other channels / signals include at least one of the following:

[0033] The serving cell's SSB, the neighboring cell's SSB, the URLLC service's PDCCH and / or PDSCH, the other services' PDCCH and / or PDSCH that are different from the URLLC service, DMRS, CSI-RS, PUCCH and / or PUSCH, and PRACH.

[0034] In one embodiment, at least one of the first threshold value, the second threshold value, the third threshold value, and the fourth threshold value is determined by one of the following methods: determined based on indication information sent by the core network device; determined based on received terminal capability information; or determined based on a default threshold value specified in the protocol.

[0035] In one embodiment, the method further includes: receiving at least one carrier combination information sent by a terminal, wherein the carrier combination information is a carrier group supported by the terminal for transmitting reference signals for positioning purposes, and includes a carrier combination identifier or carrier identifiers of each carrier included in the carrier combination.

[0036] According to a third aspect of the present disclosure, a method for transmitting a positioning reference signal is provided, applied to a core network device, comprising: sending first information to a terminal, the first information being used to indicate a first carrier group for transmitting a positioning reference signal, the first carrier group including at least two carriers.

[0037] In one embodiment, the method further includes: acquiring measurement results when transmitting a positioning reference signal based on a second carrier group, and acquiring the carrier group identifier of the second carrier group or the carrier identifier of each carrier in the second carrier group.

[0038] In one embodiment, the carriers in the second carrier group have a higher priority for transmitting positioning reference signals than for transmitting other channels / signals.

[0039] In one embodiment, the method further includes: receiving at least one carrier combination information sent by a terminal, wherein the carrier combination information is a carrier group supported by the terminal for transmitting reference signals for positioning purposes, and includes a carrier combination identifier or carrier identifiers of each carrier included in the carrier combination.

[0040] In one embodiment, the positioning reference signal includes a downlink positioning reference signal and / or an uplink positioning reference signal.

[0041] According to a fourth aspect of the present disclosure, a reference signal transmission device for positioning purposes is provided, comprising:

[0042] The acquisition unit is configured to acquire first information, the first information being used to indicate a first carrier group for transmitting a positioning reference signal, the first carrier group including at least two carriers.

[0043] In one embodiment, the acquisition unit is further configured to receive second information, the second information being used to indicate the priority of each of the at least two carriers in transmitting the positioning reference signal relative to the transmission of other channels / signals.

[0044] In one embodiment, the positioning reference signal is transmitted with the same priority on each of the at least two carriers.

[0045] In one embodiment, the positioning reference signal is transmitted with different priorities on different carriers among the at least two carriers.

[0046] In one embodiment, the positioning reference signal transmission device further includes a processing unit configured to: determine a second carrier group in the first carrier group, wherein each carrier in the second carrier group has a higher priority for transmitting positioning reference signals than for transmitting other channels / signals.

[0047] In one embodiment, the positioning reference signal transmission device further includes a processing unit, which, in response to determining that the conditions for transmitting the positioning reference signal are met, transmits the positioning reference signal via the second carrier group.

[0048] In one embodiment, the positioning reference signal includes a downlink positioning reference signal, and the acquisition unit is configured to receive the downlink positioning reference signal on each carrier of the second carrier group. The positioning reference signal transmission device further includes a transmission unit configured to measure the downlink positioning reference signal and report the measurement results and second carrier group information, wherein the second carrier group information includes a carrier group identifier or carrier identifiers of each carrier included in the second carrier group.

[0049] In one embodiment, the positioning reference signal includes an uplink positioning reference signal, and the positioning reference signal transmission device further includes a transmission unit configured to transmit the uplink positioning reference signal through each carrier in the second carrier group.

[0050] In one embodiment, the positioning reference signal transmission device further includes a processing unit that, in response to the processing unit determining that the conditions for transmitting the positioning reference signal are not met, stops transmitting the positioning reference signal through the second carrier group.

[0051] In one implementation, the conditions include at least one of the following:

[0052] The sum of the carrier bandwidths of the second carrier group is greater than or equal to the first threshold; the ratio between the sum of the carrier bandwidths of the second carrier group and the sum of the carrier bandwidths of the first carrier group is greater than or equal to the second threshold; the number of intervals between carriers in the second carrier group is less than or equal to the third threshold; the frequency domain interval between carriers in the second carrier group is less than or equal to the fourth threshold; the second carrier group contains a carrier combination supported by the terminal for transmitting reference signals for positioning purposes.

[0053] In one embodiment, the acquisition unit is configured to acquire first information sent by the core network device.

[0054] In one embodiment, the acquisition unit is configured to receive second information sent by a wireless access network device.

[0055] In one implementation, the other channels / signals include at least one of the following:

[0056] The serving cell's SSB, the neighboring cell's SSB, the URLLC service's PDCCH and / or PDSCH, the other services' PDCCH and / or PDSCH that are different from the URLLC service, DMRS, CSI-RS, PUCCH and / or PUSCH, and PRACH.

[0057] In one implementation, at least one of the first threshold value, the second threshold value, the third threshold value, and the fourth threshold value is determined by one of the following methods:

[0058] Determined based on indication information received from core network equipment; determined based on indication information received from radio access network equipment; determined based on threshold values ​​stored in the terminal.

[0059] In one embodiment, the positioning reference signal transmission device further includes a transmitting unit configured to transmit at least one carrier combination information supported by the terminal for transmitting positioning reference signals to a core network device or a wireless access network device, wherein the carrier combination information includes a carrier combination identifier or carrier identifiers of each carrier included in the carrier combination.

[0060] According to a fifth aspect of this disclosure, a reference signal transmission device for positioning purposes is provided, comprising:

[0061] The transmitting unit is configured to send second information to the terminal, the second information being used to indicate the priority of each carrier in at least two carriers of the first carrier group in transmitting a positioning reference signal relative to the transmission of other channels / signals.

[0062] In one embodiment, the positioning reference signal is transmitted with the same priority on each of the at least two carriers.

[0063] In one embodiment, the positioning reference signal is transmitted with different priorities on different carriers among the at least two carriers.

[0064] In one embodiment, the transmitting unit is further configured to: determine a second carrier group in the first carrier group, wherein each carrier in the second carrier group has a higher priority for transmitting positioning reference signals than for transmitting other channels / signals.

[0065] In one embodiment, the transmitting unit is further configured to transmit the positioning reference signal via the second carrier group in response to determining that the conditions for transmitting the positioning reference signal are met.

[0066] In one embodiment, the positioning reference signal includes a downlink positioning reference signal, and the transmitting unit is further configured to transmit the downlink positioning reference signal on each carrier of the second carrier group. The positioning reference signal transmission device further includes a receiving unit configured to acquire downlink positioning reference signal measurement results reported by the terminal and second carrier group information, wherein the second carrier group information includes a carrier group identifier or carrier identifiers of each carrier included in the second carrier group.

[0067] In one embodiment, the positioning reference signal includes an uplink positioning reference signal, and the positioning reference signal transmission device further includes a receiving unit configured to receive the uplink positioning reference signal via each carrier in the second carrier group. The transmitting unit is configured to measure the uplink positioning reference signal received on each carrier in the second carrier group and report the measurement results and second carrier group information, wherein the second carrier group information includes a carrier group identifier or carrier identifiers of each carrier included in the second carrier group.

[0068] In one embodiment, in response to determining that the conditions for transmitting the positioning reference signal are not met, the transmitting unit stops transmitting the positioning reference signal through the second carrier group.

[0069] In one embodiment, the conditions include at least one of the following: the sum of the carrier bandwidths of the second carrier group is greater than or equal to a first threshold; the ratio between the sum of the carrier bandwidths of the second carrier group and the sum of the carrier bandwidths of the first carrier group is greater than or equal to a second threshold; the number of intervals between carriers in the second carrier group is less than or equal to a third threshold; the frequency domain interval between carriers in the second carrier group is less than or equal to a fourth threshold; and the second carrier group contains a carrier combination supported by the terminal for transmitting reference signals for positioning purposes.

[0070] In one implementation, the other channels / signals include at least one of the following:

[0071] The serving cell's SSB, the neighboring cell's SSB, the URLLC service's PDCCH and / or PDSCH, the other services' PDCCH and / or PDSCH that are different from the URLLC service, DMRS, CSI-RS, PUCCH and / or PUSCH, and PRACH.

[0072] In one embodiment, at least one of the first threshold value, the second threshold value, the third threshold value, and the fourth threshold value is determined by one of the following methods: determined based on indication information sent by the core network device; determined based on received terminal capability information; or determined based on a default threshold value specified in the protocol.

[0073] In one embodiment, the positioning reference signal transmission device further includes a receiving unit configured to receive at least one carrier combination information sent by a terminal, wherein the carrier combination information is a carrier group supported by the terminal for transmitting positioning reference signals, and includes a carrier combination identifier or carrier identifiers of each carrier included in the carrier combination.

[0074] According to a sixth aspect of the present disclosure, a reference signal transmission device for positioning purposes is provided, comprising:

[0075] The transmitting unit is configured to transmit first information to the terminal, the first information being used to indicate a first carrier group for transmitting a positioning reference signal, the first carrier group including at least two carriers.

[0076] In one embodiment, the positioning reference signal transmission device further includes a receiving unit configured to acquire measurement results when transmitting positioning reference signals based on a second carrier group, and to acquire a carrier group identifier of the second carrier group or a carrier identifier of each carrier in the second carrier group.

[0077] In one embodiment, the carriers in the second carrier group have a higher priority for transmitting positioning reference signals than for transmitting other channels / signals.

[0078] In one embodiment, the positioning reference signal transmission device further includes a receiving unit configured to receive at least one carrier combination information sent by a terminal, wherein the carrier combination information is a carrier group supported by the terminal for transmitting positioning reference signals, and includes a carrier combination identifier or carrier identifiers of each carrier included in the carrier combination.

[0079] In one embodiment, the positioning reference signal includes a downlink positioning reference signal and / or an uplink positioning reference signal.

[0080] According to a seventh aspect of this disclosure, a reference signal transmission device for positioning purposes is provided, comprising:

[0081] Processor; memory used to store processor-executable instructions;

[0082] The processor is configured to execute the method described in the first aspect or any embodiment of the first aspect.

[0083] According to an eighth aspect of this disclosure, a reference signal transmission device for positioning purposes is provided, comprising:

[0084] Processor; memory used to store processor-executable instructions;

[0085] The processor is configured to execute the method described in the second aspect or any one of the embodiments of the second aspect.

[0086] According to a ninth aspect of this disclosure, a reference signal transmission device for positioning purposes is provided, comprising:

[0087] Processor; memory used to store processor-executable instructions;

[0088] The processor is configured to execute the method described in the third aspect or any one of the embodiments of the third aspect.

[0089] According to a tenth aspect of this disclosure, a storage medium is provided, the storage medium storing instructions that, when executed by a processor, cause the method described in the first aspect or any embodiment of the first aspect to be implemented.

[0090] According to an eleventh aspect of the present disclosure, a storage medium is provided, the storage medium storing instructions that, when executed by a processor, cause the method described in the second aspect or any embodiment of the second aspect to be implemented.

[0091] According to a twelfth aspect of the present disclosure, a storage medium is provided that stores instructions which, when executed by a processor, cause the method described in the second aspect or any embodiment of the second aspect to be implemented.

[0092] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: the first information obtained by the terminal indicates a first carrier group for transmitting positioning reference signals, the first carrier group including at least two carriers, so the transmission of positioning reference signals based on the at least two carriers can be realized, that is, the transmission of positioning reference signals is realized by carrier aggregation, thereby improving positioning accuracy.

[0093] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0094] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0095] Figure 1 This is a schematic diagram of a wireless communication system according to an exemplary embodiment.

[0096] Figure 2This is a flowchart illustrating a reference signal transmission method for positioning purposes according to an exemplary embodiment.

[0097] Figure 3 This is a flowchart illustrating a reference signal transmission method for positioning purposes according to an exemplary embodiment.

[0098] Figure 4 This is a flowchart illustrating a reference signal transmission method for positioning purposes according to an exemplary embodiment.

[0099] Figure 5 This is a flowchart illustrating a reference signal transmission method for positioning purposes according to an exemplary embodiment.

[0100] Figure 6 This is a flowchart illustrating a reference signal transmission method for positioning purposes according to an exemplary embodiment.

[0101] Figure 7 This is a flowchart illustrating a reference signal transmission method for positioning purposes according to an exemplary embodiment.

[0102] Figure 8 This is a flowchart illustrating a reference signal transmission method for positioning purposes according to an exemplary embodiment.

[0103] Figure 9 This is a flowchart illustrating a reference signal transmission method for positioning purposes according to an exemplary embodiment.

[0104] Figure 10 This is a flowchart illustrating a reference signal transmission method for positioning purposes according to an exemplary embodiment.

[0105] Figure 11 This is a flowchart illustrating a reference signal transmission method for positioning purposes according to an exemplary embodiment.

[0106] Figure 12 This is a block diagram illustrating a reference signal transmission device for positioning purposes according to an exemplary embodiment.

[0107] Figure 13 This is a block diagram illustrating a reference signal transmission device for positioning purposes according to an exemplary embodiment.

[0108] Figure 14 This is a block diagram illustrating a reference signal transmission device for positioning purposes according to an exemplary embodiment.

[0109] Figure 15 This is a block diagram illustrating an apparatus for transmitting a reference signal for positioning purposes, according to an exemplary embodiment.

[0110] Figure 16This is a block diagram illustrating an apparatus for transmitting a reference signal for positioning purposes, according to an exemplary embodiment. Detailed Implementation

[0111] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure.

[0112] This disclosure provides a reference signal transmission method for positioning purposes, which can be applied to... Figure 1 In the wireless communication system shown, such as Figure 1 As shown, the terminal accesses the wireless access network through wireless access network devices such as base stations. The wireless access network devices and the core network devices complete the backhaul and forward transmission of data to perform various communication services.

[0113] It is understood that a wireless communication system is a network that provides wireless communication functionality. Wireless communication systems can employ different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency-division multiple access (OFDMA), single-carrier frequency division multiple access (SC-FDMA), and carrier sense multiple access with collision avoidance. Based on factors such as capacity, speed, and latency, networks can be categorized as 2G, 3G, 4G, or future evolution networks, such as 5G networks, which can also be referred to as New Radio (NR). For ease of description, this disclosure sometimes refers to wireless communication networks simply as networks or systems. In this disclosure, networks may include radio access networks (RAN) and core networks (CN). A network includes network devices, such as wireless network devices and core network devices. Wireless network devices can also be called base stations. The network provides network services to terminals through these devices. Different operators can provide different network services to terminals; this can be understood as different operators having different network networks. For example, in 5G NR, wireless network devices, i.e., radio access network devices, can be called gNBs. A gNB can also be represented as at least one Transmission Reception Point (TRP). Core network devices include a location management function network element.Optionally, the location management function network element includes a location server, which can be implemented as any of the following: LMF (Location Management Function), E-SMLC (Enhanced Serving Mobile Location Centre), SUPL (Secure User Plane Location), or SUPL SLP (SUPL Location Platform).

[0114] A terminal, sometimes called a mobile station (MS), user equipment (UE), or mobile terminal (MT), is a device that provides voice and / or data connectivity to a user. For example, a terminal can be a handheld device with wireless connectivity, an in-vehicle device, etc. Currently, examples of terminals include: smartphones (Mobile Phones), pocket personal computers (PPCs), handheld computers, personal digital assistants (PDAs), laptops, tablets, wearable devices, or in-vehicle devices. In this embodiment, the terminal is referred to as a UE for illustrative purposes.

[0115] 5G R16 introduces various positioning technologies to achieve UE positioning. Some of these technologies rely on positioning reference signals (RPS). In these technologies, each RPS occupies a dedicated frequency layer for transmission. However, a single frequency layer may not provide sufficient positioning accuracy. Therefore, determining how to transmit RPS signals more efficiently to improve positioning accuracy is a problem that needs to be addressed.

[0116] In view of this, the present disclosure provides a method for transmitting a reference signal for positioning purposes, which transmits the reference signal for positioning purposes through carrier aggregation to improve positioning accuracy.

[0117] The positioning reference signals involved in the embodiments of this disclosure may include downlink positioning reference signals such as PRS, uplink positioning reference signals such as SRS, or other positioning reference signals, such as newly introduced positioning reference signals.

[0118] Figure 2 This is a flowchart illustrating a method for transmitting a reference signal for positioning purposes according to an exemplary embodiment. This method can be implemented alone or in conjunction with other embodiments of this disclosure. Figure 2 As shown, the positioning reference signal transmission method is used in a terminal and includes the following steps.

[0119] In step S11, first information is obtained, which is used to indicate a first carrier group for transmitting a positioning reference signal, the first carrier group including at least two carriers.

[0120] In this embodiment of the disclosure, the first information can be understood as configuration information for a positioning reference signal. This first information includes carrier information required for transmitting the positioning reference signal.

[0121] In this embodiment of the present disclosure, the carrier information indicated by the first information includes a carrier group configured for transmitting a reference signal for positioning purposes, hereinafter referred to as the first carrier group. The first carrier group includes multiple carriers, or can be understood as including at least two carriers.

[0122] In this embodiment of the present disclosure, the first information obtained by the terminal includes a first carrier group, which includes multiple carriers. The positioning reference signal can be transmitted by carrier aggregation based on the multiple carriers. Compared with transmitting the positioning reference signal by a single carrier, the positioning accuracy can be improved.

[0123] The positioning reference signal transmission method provided in this disclosure can transmit the signal based on the transmission priority of the positioning reference signal relative to other channels / signals.

[0124] Other channels / signals involved in the embodiments of this disclosure may be at least one of the following:

[0125] The Synchronization Signal and PBCH block (SSB) of the serving cell, the SSB of the neighboring cell, the Physical Downlink Control Channel (PDCCH) and / or Physical Downlink Shared Channel (PDSCH) of Ultra-Reliable and Low Latency Communications (URLLC) services, the PDCCH and / or PDSCH of other services different from URLLC services, the Demodulation Reference Signal (DMRS), the Channel State Information (CSI) Reference Signal (RS), the Physical Uplink Control Channel (PUCCH) and / or Physical Uplink Shared Channel (PUSCH), and the Physical Random Access Channel (PRACH).

[0126] Furthermore, in one embodiment of this disclosure, the first information can be configured and sent by core network equipment such as a Location Management Function (LMF). The terminal receives the first information sent by the core network equipment such as the LMF and determines a first carrier group for transmitting a positioning reference signal based on the first information.

[0127] The transmission priority of the positioning reference signal relative to other channels / signals can be indicated by the network device. The information indicating the transmission priority of the positioning reference signal relative to other channels / signals will be referred to as the second information.

[0128] Figure 3 This is a flowchart illustrating a method for transmitting a reference signal for positioning purposes according to an exemplary embodiment. This method can be implemented alone or in conjunction with other embodiments of this disclosure. Figure 3 As shown, the positioning reference signal transmission method is used in a terminal and includes the following steps.

[0129] In step S21, second information is received, which indicates the priority of each of the at least two carriers transmitting a positioning reference signal relative to the transmission of other channels / signals.

[0130] In this embodiment of the present disclosure, the second indication information received by the terminal indicates the transmission priority of the positioning reference signal relative to other channels / signals, and the positioning reference signal can be transmitted based on this priority.

[0131] Specifically, if the priority of the positioning reference signal is higher than that of other channels / signals, then when the positioning reference signal overlaps with other channels / signals in the time domain, the positioning reference signal can be transmitted first. Alternatively, when the time domain position occupied by other channels / signals is before or after the time domain position of the positioning reference signal, the positioning reference signal can be transmitted first. Furthermore, the transmission of other channels / signals can be discarded or transmitted later.

[0132] In this embodiment of the present disclosure, the terminal can receive first information for configuring the first carrier group and receive second information, wherein the second information indicates the priority of each carrier in the first carrier group for transmitting positioning reference signals relative to other channels / signals. Thus, when transmitting positioning reference signals on multiple carriers, the terminal can transmit positioning reference signals based on the priority of each carrier for transmitting positioning reference signals.

[0133] In one embodiment of this disclosure, the second information can be configured and transmitted by a wireless access network device such as a gNB. The terminal receives the second information transmitted by the wireless access network device and determines the priority of each carrier in the first carrier group for transmitting positioning reference signals relative to other channels / signals based on the second information.

[0134] The following embodiments of the present disclosure describe a priority implementation scheme for reference signals used for positioning.

[0135] In one implementation, the positioning reference signal is transmitted with the same priority on each of at least two carriers; that is, the positioning reference signal is transmitted with the same priority on all carriers in the first carrier group. Taking the positioning reference signal as an example, on the one hand, if the priority of the positioning reference signal is lower than the priority of other channels / signals, the terminal cannot receive the positioning reference signal on any carrier in the first carrier group when a transmission collision occurs. On the other hand, if the priority of the positioning reference signal is higher than the priority of other channels / signals, the terminal can receive the positioning reference signal on all carriers in the first carrier group when a transmission collision occurs.

[0136] In another implementation, the positioning reference signal (PRS) is transmitted with different priorities on different carriers within at least two carrier groups; that is, there are carriers in the first carrier group that transmit the PRS with different priorities. For example, in one example, the priority of the PRS may differ from that of the PDCCH and / or PDSCH of URLLC services on different carriers. For instance, the first carrier group includes carrier 1 and carrier 2. On carrier 1, the PRS priority is higher than that of the PDCCH and / or PDSCH of URLLC services. On carrier 2, the PRS priority is lower than that of the PDCCH and / or PDSCH of URLLC services, but higher than that of the PDCCH and / or PDSCH of other services.

[0137] Since the positioning reference signal has different priorities when transmitted on different carriers, in order to achieve high-precision positioning in this embodiment, when transmitting the positioning reference signal, a carrier with a higher priority than the transmission priority of other channels / signals can be determined in the first carrier group for transmitting the positioning reference signal.

[0138] Figure 4 This is a flowchart illustrating a method for transmitting a reference signal for positioning purposes according to an exemplary embodiment. This method can be implemented alone or in conjunction with other embodiments of this disclosure. Figure 4 As shown, the positioning reference signal transmission method is used in a terminal and includes the following steps.

[0139] In step S31, a second carrier group is determined in the first carrier group, wherein the priority of each carrier in the second carrier group for transmitting positioning reference signals is higher than the priority of transmitting other channels / signals.

[0140] Furthermore, in this embodiment of the present disclosure, after determining a second carrier group with a higher priority than the transmission priority of other channels / signals, the terminal can transmit a positioning reference signal based on the second carrier group.

[0141] In this embodiment of the present disclosure, the terminal may further determine whether to transmit a positioning reference signal on a determined second carrier group. For example, the terminal may determine whether to receive a PRS on the second carrier group. Or the terminal may determine whether to transmit an SRS on the second carrier group.

[0142] In this embodiment of the disclosure, the conditions for determining whether to transmit a positioning reference signal on the second carrier group include conditions for determining whether to transmit the positioning reference signal or conditions for not transmitting the positioning reference signal, and the determination of whether to transmit the positioning reference signal on the second carrier group is based on these conditions.

[0143] In this embodiment of the disclosure, the conditions for determining the transmission of the positioning reference signal include at least one of the following:

[0144] A: The sum of the carrier bandwidths of the second carrier group is greater than or equal to the first threshold.

[0145] B: The ratio between the sum of the carrier bandwidths of the second carrier group and the sum of the carrier bandwidths of the first carrier group is greater than or equal to the second threshold value.

[0146] C: The number of intervals between carriers in the second carrier group, which is less than or equal to the third threshold value.

[0147] D: The frequency domain spacing between carriers in the second carrier group, which is less than or equal to the fourth threshold value.

[0148] E: The second carrier group contains a carrier combination supported by the terminal for transmitting reference signals for positioning purposes.

[0149] Alternatively, the conditions for not transmitting positioning reference signals may also be determined in the embodiments of this disclosure. For example, the conditions for not transmitting positioning reference signals may include at least one of the following:

[0150] A: The sum of the carrier bandwidths of the second carrier group is less than the first threshold.

[0151] B: The ratio between the sum of the carrier bandwidths of the second carrier group and the sum of the carrier bandwidths of the first carrier group is less than the second threshold value.

[0152] C: The number of intervals between carriers in the second carrier group is greater than the third threshold value.

[0153] D: The frequency domain spacing between carriers in the second carrier group is greater than the fourth threshold value.

[0154] E: The second carrier group contains a carrier combination that is not supported by the terminal and is used for transmitting reference signals for positioning purposes.

[0155] In one embodiment, in response to the terminal determining that the conditions for transmitting a positioning reference signal are met, the positioning reference signal is transmitted via a second carrier group. Alternatively, in response to the terminal determining that the conditions for not transmitting a positioning reference signal are not met, the positioning reference signal is transmitted via a second carrier group.

[0156] In another implementation, in response to the terminal determining that the condition for not transmitting the positioning reference signal is met, the transmission of the positioning reference signal through the second carrier group is stopped. Alternatively, in response to the terminal determining that the condition for transmitting the positioning reference signal is not met, the transmission of the positioning reference signal through the second carrier group is stopped.

[0157] At least one of the first threshold, second threshold, third threshold, and fourth threshold values ​​mentioned above in this embodiment of the invention for determining whether to transmit a positioning reference signal on the second carrier group can be determined using one of the following methods:

[0158] Method 1: Receive indication information sent by core network devices such as LMF, and determine the threshold value based on the received indication information. The indication information sent by the core network devices such as LMF may indicate the corresponding threshold value.

[0159] Method 2: Receive indication information sent by the wireless access network device and determine the threshold value based on the received indication information. The indication information sent by the wireless access network device may indicate the corresponding threshold value.

[0160] Method 3: Determining threshold values ​​based on terminal storage. In one example, the default value of the threshold can be specified by the protocol, and the terminal stores the default value of the threshold in the terminal chip.

[0161] In this embodiment of the disclosure, when determining whether to transmit a positioning reference signal on the second carrier group based on the carrier combination method, the terminal can determine whether to transmit the positioning reference signal on the second carrier group based on supported or unsupported carrier combinations. For example, the terminal may report multiple supported carrier combinations or multiple unsupported carrier combinations, such as carriers C1, C2...C10 ordered from low frequency to high frequency. The supported combinations reported by the terminal are: C1C2, C1C2C3, C1C3, C1, C3C4...

[0162] Furthermore, in this embodiment of the present disclosure, the terminal can independently select supported carrier combinations and send at least one carrier combination information supported by the terminal for transmitting reference signals for positioning purposes to core network equipment such as the LMF or radio access network equipment. The carrier combination information includes a carrier combination identifier or carrier identifiers of each carrier included in the carrier combination.

[0163] In one example, the terminal supports C1C2 or C2C4 but not C1C2C4. However, due to priority considerations, the carrier combination that can be used for reference signal transmission for positioning purposes is C1C2C4. In this case, the terminal can choose to measure C1C2 or C2C4 and report the selected carrier combination information; or the terminal can determine whether to measure C1C2 or C2C4 based on the bandwidth of C1C2 and C2C4.

[0164] It is understood that the positioning reference signal involved in the above embodiments of this disclosure can be a downlink positioning reference signal or an uplink positioning reference signal.

[0165] The following description, based on embodiments of this disclosure, will focus on the transmission of downlink positioning reference signals and uplink positioning reference signals.

[0166] In one embodiment, the positioning reference signal includes a downlink positioning reference signal. This downlink positioning reference signal may include a PRS or other downlink positioning reference signals, such as those that may be introduced later.

[0167] Figure 5 This is a flowchart illustrating a method for transmitting a reference signal for positioning purposes according to an exemplary embodiment. This method can be implemented alone or in conjunction with other embodiments of this disclosure. Figure 5 As shown, the positioning reference signal transmission method is used in a terminal and includes the following steps.

[0168] In step S41, downlink positioning reference signals are received on each carrier of the second carrier group.

[0169] In step S42, the downlink positioning reference signal is measured, and the measurement results and the second carrier group information are reported.

[0170] The second carrier group information includes a carrier group identifier or the carrier identifiers of each carrier contained in the second carrier group.

[0171] In one example, the terminal determines to receive PRS measurements on each carrier of the second carrier group. The terminal performs PRS measurements and then reports the measurement results along with information about the second carrier group.

[0172] Among them, the carrier group identifier or carrier identifier in the second carrier group information can also be informed by wireless access network equipment such as gNB to the terminal at the same time or before and after the positioning purpose reference signal priority (second information) on each carrier.

[0173] In another implementation, the positioning reference signal includes an uplink positioning reference signal. This uplink positioning reference signal may include an SRS or other uplink positioning reference signal, such as one that may be introduced later.

[0174] Figure 6 This is a flowchart illustrating a method for transmitting a reference signal for positioning purposes according to an exemplary embodiment. This method can be implemented alone or in conjunction with other embodiments of this disclosure. Figure 6 As shown, the positioning reference signal transmission method is used in a terminal and includes the following steps.

[0175] In step S51, uplink positioning reference signals are transmitted through each carrier in the second carrier group.

[0176] In this embodiment of the disclosure, the terminal transmits uplink positioning reference signals through each carrier in the second carrier group. The radio access network device, i.e., the TRP, can receive the uplink positioning reference signals, measure the uplink positioning reference signals, and report the measurement results.

[0177] In this embodiment of the present disclosure, when the uplink positioning reference signal has a relatively low priority, the network device may not need to perform positioning based on the low-priority uplink positioning reference signal. The terminal may not need to send the uplink positioning reference signal to save communication overhead.

[0178] The positioning reference signal transmission method provided in this disclosure is based on carrier aggregation. By indicating the transmission priority of the positioning reference signal on each carrier of the carrier aggregation, and performing the measurement of the positioning measurement reference signal and reporting the measurement results based on the transmission priority, positioning accuracy can be improved.

[0179] Based on the same concept, embodiments of this disclosure also provide a reference signal transmission method for positioning purposes applied to network devices.

[0180] In one embodiment, the positioning-purpose reference signal transmission method is applied to a wireless access network device. This wireless access network device may, for example, be a Transmission Reception Point (TRP).

[0181] Figure 7 This is a flowchart illustrating a method for transmitting a reference signal for positioning purposes according to an exemplary embodiment. This method can be implemented alone or in conjunction with other embodiments of this disclosure. Figure 7 As shown, the positioning reference signal transmission method is used in wireless access network equipment and includes the following steps.

[0182] In step S61, second information is sent to the terminal. The second information is used to indicate the priority of each carrier in at least two carriers in the first carrier group in transmitting positioning reference signals relative to the transmission of other channels / signals.

[0183] In one implementation, the other channels / signals include at least one of the following:

[0184] The serving cell's SSB, the neighboring cell's SSB, the URLLC service's PDCCH and / or PDSCH, the other services' PDCCH and / or PDSCH that are different from the URLLC service, DMRS, CSI-RS, PUCCH and / or PUSCH, and PRACH.

[0185] In one embodiment, the positioning reference signal is transmitted with the same priority on each of at least two carriers. In another embodiment, the positioning reference signal is transmitted with different priorities on different carriers of at least two carriers.

[0186] In this embodiment of the disclosure, if the positioning reference signal has different priorities when transmitted on different carriers in at least two carriers, the network device can further determine a second carrier group in the first carrier group, wherein the priority of transmitting the positioning reference signal on each carrier in the second carrier group is higher than the priority of transmitting other channels / signals.

[0187] In this embodiment of the disclosure, after the network device determines the second carrier group, it can further determine whether to transmit a positioning reference signal on the second carrier group.

[0188] In this embodiment of the disclosure, the conditions for determining whether to transmit a positioning reference signal on the second carrier group include conditions for determining whether to transmit the positioning reference signal or conditions for not transmitting the positioning reference signal, and the determination of whether to transmit the positioning reference signal on the second carrier group is based on these conditions.

[0189] In this embodiment of the disclosure, the conditions for determining the transmission of the positioning reference signal include at least one of the following:

[0190] A: The sum of the carrier bandwidths of the second carrier group is greater than or equal to the first threshold value.

[0191] B: The ratio between the sum of the carrier bandwidths of the second carrier group and the sum of the carrier bandwidths of the first carrier group is greater than or equal to the second threshold value.

[0192] C: The number of intervals between carriers in the second carrier group, which is less than or equal to the third threshold value.

[0193] D: The frequency domain spacing between carriers in the second carrier group, which is less than or equal to the fourth threshold value.

[0194] E: The second carrier group contains a carrier combination supported by the terminal for transmitting reference signals for positioning purposes.

[0195] Alternatively, the conditions for not transmitting positioning reference signals may also be determined in the embodiments of this disclosure. For example, the conditions for not transmitting positioning reference signals may include at least one of the following:

[0196] A: The sum of the carrier bandwidths of the second carrier group is less than the first threshold value.

[0197] B: The ratio between the sum of the carrier bandwidths of the second carrier group and the sum of the carrier bandwidths of the first carrier group is less than the second threshold value.

[0198] C: The number of intervals between carriers in the second carrier group is greater than the third threshold value.

[0199] D: The frequency domain spacing between carriers in the second carrier group is greater than the fourth threshold value.

[0200] E: The second carrier group contains a carrier combination that is not supported by the terminal and is used for transmitting reference signals for positioning purposes.

[0201] In one embodiment, the positioning reference signal is transmitted via a second carrier group in response to determining that the conditions for transmitting the positioning reference signal are met. For example, the positioning reference signal is transmitted via the second carrier group when the sum of the carrier bandwidths of the second carrier group is greater than or equal to a first threshold. As another example, the positioning reference signal is transmitted via the second carrier group when the sum of the carrier bandwidths of the second carrier group is greater than or equal to the first threshold, and the number of intervals between carriers in the second carrier group is less than or equal to a third threshold.

[0202] Alternatively, in response to the determination that the condition for not transmitting the positioning reference signal is not met, the positioning reference signal is transmitted via the second carrier group. For example, if the second carrier group contains a carrier combination supported by the terminal for transmitting the positioning reference signal, the positioning reference signal is transmitted via the second carrier group. As another example, if the frequency domain spacing between the carriers in the second carrier group is less than or equal to a fourth threshold, and the sum of the carrier bandwidths of the second carrier group is greater than or equal to a first threshold, the positioning reference signal is transmitted via the second carrier group.

[0203] In another implementation, in response to determining that the condition for not transmitting a positioning reference signal is met, transmission of the positioning reference signal through the second carrier group is stopped. For example, if the second carrier group contains a carrier combination for transmitting the positioning reference signal that is not supported by the terminal, transmission of the positioning reference signal through the second carrier group is stopped. As another example, if the frequency domain spacing between the carriers in the second carrier group is greater than a fourth threshold, and the sum of the carrier bandwidths of the second carrier group is less than a first threshold, transmission of the positioning reference signal through the second carrier group is stopped.

[0204] Alternatively, in response to determining that the conditions for transmitting a positioning reference signal are not met, the transmission of the positioning reference signal through the second carrier group is stopped. For example, if the ratio between the sum of the carrier bandwidths of the second carrier group and the sum of the carrier bandwidths of the first carrier group is less than a second threshold value, the transmission of the positioning reference signal through the second carrier group is stopped. As another example, if the ratio between the sum of the carrier bandwidths of the second carrier group and the sum of the carrier bandwidths of the first carrier group is less than a second threshold value, and the frequency domain spacing between the carriers in the second carrier group is greater than a fourth threshold value, the transmission of the positioning reference signal through the second carrier group is stopped. At least one of the first, second, third, and fourth threshold values ​​involved in determining whether to transmit the positioning reference signal on the second carrier group in the embodiments of this disclosure can be determined using one of the following methods:

[0205] Method 1: Receive indication information sent by core network devices such as LMF, and determine the threshold value based on the received indication information. The indication information sent by the core network devices such as LMF may indicate the corresponding threshold value.

[0206] Method 2: Receive capability information reported by the terminal and determine the capability based on the received capability information. This capability information may indicate the corresponding threshold value.

[0207] Method 3: Determine based on the default threshold value specified in the protocol.

[0208] It is understood that the positioning reference signal involved in the above embodiments of this disclosure can be a downlink positioning reference signal or an uplink positioning reference signal.

[0209] In one embodiment, the positioning reference signal includes a downlink positioning reference signal. This downlink positioning reference signal may include a PRS or other downlink positioning reference signals, such as those that may be introduced later.

[0210] Figure 8 This is a flowchart illustrating a method for transmitting a reference signal for positioning purposes according to an exemplary embodiment. This method can be implemented alone or in conjunction with other embodiments of this disclosure. Figure 8 As shown, the positioning reference signal transmission method is used in wireless access network equipment and includes the following steps.

[0211] In step S71, downlink positioning reference signals are transmitted on each carrier of the second carrier group.

[0212] In step S72, the downlink positioning reference signal measurement results reported by the terminal and the second carrier group information are obtained. The second carrier group information includes the carrier group identifier or the carrier identifiers of each carrier included in the second carrier group.

[0213] In another implementation, the positioning reference signal includes an uplink positioning reference signal. This uplink positioning reference signal may include an SRS or other uplink positioning reference signal, such as one that may be introduced later.

[0214] Figure 9 This is a flowchart illustrating a method for transmitting a reference signal for positioning purposes according to an exemplary embodiment. This method can be implemented alone or in conjunction with other embodiments of this disclosure. Figure 9 As shown, the positioning reference signal transmission method is used in wireless access network equipment and includes the following steps.

[0215] In step S81, uplink positioning reference signals are received through each carrier in the second carrier group.

[0216] In step S82, the uplink positioning reference signals received on each carrier in the second carrier group are measured, and the measurement results and second carrier group information are reported. The second carrier group information includes the carrier group identifier or the carrier identifiers of each carrier in the second carrier group.

[0217] In this embodiment of the disclosure, the TRP can measure the uplink positioning reference signals received on each carrier in the second carrier group and report the measurement results and the second carrier group information.

[0218] Furthermore, in this embodiment of the disclosure, the radio access network device, i.e., the TRP, can receive carrier combination information that the terminal selects to support. The carrier combination information includes a carrier combination identifier or the carrier identifiers of each carrier included in the carrier combination.

[0219] Figure 10 This is a flowchart illustrating a method for transmitting a reference signal for positioning purposes according to an exemplary embodiment. This method can be implemented alone or in conjunction with other embodiments of this disclosure. Figure 10 As shown, the positioning reference signal transmission method is used in wireless access network equipment and includes the following steps.

[0220] In step S91, at least one carrier combination information is sent by the receiving terminal.

[0221] The carrier combination information refers to the carrier group supported by the terminal for transmitting reference signals for positioning purposes, and includes a carrier combination identifier or the carrier identifier of each carrier included in the carrier combination.

[0222] In this embodiment of the disclosure, the wireless access network device determines the carrier combination supported by the terminal based on the carrier combination information sent by the terminal, and then can transmit the positioning reference signal based on the carrier combination supported by the terminal.

[0223] In this embodiment of the disclosure, the priority information of the positioning reference signal sent by the wireless access network device to the terminal can enable the measurement of the positioning reference signal and the reporting of the measurement result based on the transmission priority when the positioning reference signal is transmitted on each carrier through carrier aggregation, thereby improving the positioning accuracy.

[0224] In one embodiment, the positioning-purpose reference signal transmission method is applied to core network equipment.

[0225] Figure 11 This is a flowchart illustrating a method for transmitting a reference signal for positioning purposes according to an exemplary embodiment. This method can be implemented alone or in conjunction with other embodiments of this disclosure. Figure 7 As shown, the positioning reference signal transmission method is used in core network equipment such as LMF and includes the following steps.

[0226] In step S101, first information is sent to the terminal. The first information is used to indicate a first carrier group for transmitting a positioning reference signal. The first carrier group includes at least two carriers.

[0227] In one implementation, a terminal or wireless access network device can report measurement results during the transmission of a positioning reference signal based on a second carrier group determined in a first carrier group. Core network devices such as LMF acquire the measurement results during the transmission of the positioning reference signal based on the second carrier group, and obtain the carrier group identifier of the second carrier group or the carrier identifier of each carrier in the second carrier group.

[0228] In the second carrier group, the carriers that transmit positioning reference signals have a higher priority than those that transmit other channels / signals.

[0229] Furthermore, in this embodiment of the present disclosure, core network equipment such as the LMF can receive carrier combination information that the terminal selects to support. The carrier combination information includes a carrier combination identifier or the carrier identifiers of each carrier included in the carrier combination.

[0230] In this embodiment of the disclosure, core network equipment such as LMF receives at least one carrier combination information sent by the terminal. The carrier combination information is a carrier group supported by the terminal for transmitting reference signals for positioning purposes, and includes a carrier combination identifier or carrier identifiers of each carrier included in the carrier combination.

[0231] In this embodiment of the disclosure, core network equipment such as LMF determines the carrier combination supported by the terminal based on the carrier combination information sent by the terminal, and then can transmit the positioning reference signal based on the carrier combination supported by the terminal.

[0232] In one embodiment, the positioning reference signal includes a downlink positioning reference signal and / or an uplink positioning reference signal.

[0233] Among them, the downlink positioning reference signal includes PRS or other downlink positioning reference signals, such as downlink positioning reference signals that may be newly introduced in the future.

[0234] Uplink positioning reference signals include SRS or other uplink positioning reference signals, such as those that may be introduced later.

[0235] In this embodiment of the disclosure, core network equipment such as LMF sends first information indicating the first carrier group to the terminal, thereby realizing the transmission of positioning reference signals based on carrier aggregation and improving positioning accuracy.

[0236] It should be noted that the method for transmitting positioning reference signals for wireless access network devices such as TRP and / or core network devices such as LMF in this embodiment is similar to the method for transmitting positioning reference signals for terminals. Where the description of the method for transmitting positioning reference signals for wireless access network devices such as TRP and / or core network devices such as LMF is not detailed enough, please refer to the method for transmitting positioning reference signals for terminals.

[0237] It should be further noted that the positioning reference signal transmission method provided in this disclosure is applicable to the process of interactively transmitting positioning reference signals by terminals, wireless access network devices such as TRPs, and core network devices such as LMFs. During the interactive transmission of positioning reference signals by terminals, wireless access network devices such as TRPs, and core network devices such as LMFs, the terminals, TRPs, and LMFs possess the functions described in the above embodiments.

[0238] It should be further noted that those skilled in the art will understand that the various implementation methods / embodiments described above in this disclosure can be used in conjunction with the foregoing embodiments, or they can be used independently. Whether used alone or in conjunction with the foregoing embodiments, the implementation principle is similar. In this disclosure, some embodiments are described as implementations used together. Of course, those skilled in the art will understand that such illustrative examples are not intended to limit the embodiments of this disclosure.

[0239] Based on the same concept, this disclosure also provides a reference signal transmission device for positioning purposes.

[0240] It is understood that the positioning reference signal transmission device provided in this disclosure includes hardware structures and / or software modules corresponding to each function in order to achieve the above-mentioned functions. In conjunction with the units and algorithm steps of the various examples disclosed in this disclosure, this disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the technical solutions of this disclosure.

[0241] Figure 12 This is a block diagram illustrating a reference signal transmission device for positioning purposes according to an exemplary embodiment. (Refer to...) Figure 12 The positioning reference signal transmission device 100 is applied to a terminal and includes an acquisition unit 101.

[0242] The acquisition unit 101 is configured to acquire first information, which is used to indicate a first carrier group for transmitting a positioning reference signal, the first carrier group including at least two carriers.

[0243] In one embodiment, the acquisition unit 101 is further configured to receive second information, the second information being used to indicate the priority of each of the at least two carriers transmitting a positioning reference signal relative to the transmission of other channels / signals.

[0244] In one embodiment, the positioning reference signal is transmitted with the same priority on each of at least two carriers.

[0245] In one implementation, the positioning reference signal is transmitted with different priorities on different carriers in at least two carriers.

[0246] In one embodiment, the positioning reference signal transmission device 100 further includes a processing unit 102, which is configured to: determine a second carrier group in a first carrier group, wherein each carrier in the second carrier group has a higher priority for transmitting positioning reference signals than for transmitting other channels / signals.

[0247] In one embodiment, the positioning reference signal transmission device 100 further includes a processing unit 102, which, in response to determining that the conditions for transmitting the positioning reference signal are met, transmits the positioning reference signal via a second carrier group.

[0248] In one embodiment, the positioning reference signal includes a downlink positioning reference signal, and the acquisition unit 101 is configured to receive the downlink positioning reference signal on each carrier of the second carrier group. The positioning reference signal transmission device 100 further includes a transmission unit 103, which is configured to measure the downlink positioning reference signal and report the measurement results and second carrier group information, the second carrier group information including a carrier group identifier or carrier identifiers of each carrier included in the second carrier group.

[0249] In one embodiment, the positioning reference signal includes an uplink positioning reference signal, and the positioning reference signal transmission device 100 further includes a transmission unit 103 configured to transmit the uplink positioning reference signal through each carrier in the second carrier group.

[0250] In one embodiment, the positioning reference signal transmission device 100 further includes a processing unit 102, which stops transmitting the positioning reference signal through the second carrier group in response to the processing unit 102 determining that the conditions for transmitting the positioning reference signal are not met.

[0251] In one implementation, the conditions include at least one of the following:

[0252] The sum of the carrier bandwidths of the second carrier group is greater than or equal to the first threshold; the ratio between the sum of the carrier bandwidths of the second carrier group and the sum of the carrier bandwidths of the first carrier group is greater than or equal to the second threshold; the number of intervals between carriers in the second carrier group is less than or equal to the third threshold; the frequency domain interval between carriers in the second carrier group is less than or equal to the fourth threshold; and the second carrier group contains a carrier combination supported by the terminal for transmitting reference signals for positioning purposes.

[0253] In one embodiment, the acquisition unit 101 is configured to acquire first information sent by the core network device.

[0254] In one embodiment, the acquisition unit 101 is configured to receive second information sent by a wireless access network device.

[0255] In one implementation, the other channels / signals include at least one of the following:

[0256] The serving cell's SSB, the neighboring cell's SSB, the URLLC service's PDCCH and / or PDSCH, the other services' PDCCH and / or PDSCH that are different from the URLLC service, DMRS, CSI-RS, PUCCH and / or PUSCH, and PRACH.

[0257] In one implementation, at least one of the first threshold, the second threshold, the third threshold, and the fourth threshold is determined by one of the following methods:

[0258] Determined based on indication information received from core network equipment; determined based on indication information received from radio access network equipment; determined based on threshold values ​​stored in the terminal.

[0259] In one embodiment, the positioning reference signal transmission device 100 further includes a transmission unit 103, which is configured to transmit at least one carrier combination information supported by the terminal for transmitting positioning reference signals to a core network device or a wireless access network device, wherein the carrier combination information includes a carrier combination identifier or carrier identifiers of each carrier included in the carrier combination.

[0260] Figure 13 This is a block diagram illustrating a reference signal transmission device for positioning purposes according to an exemplary embodiment. (Refer to...) Figure 13 The positioning reference signal transmission device 200 is used in wireless access network equipment and includes a transmitting unit 201.

[0261] The transmitting unit 201 is configured to transmit second information to the terminal, the second information being used to indicate the priority of each of the at least two carriers in the first carrier group in transmitting a positioning reference signal relative to the transmission of other channels / signals.

[0262] In one embodiment, the positioning reference signal is transmitted with the same priority on each of at least two carriers.

[0263] In one implementation, the positioning reference signal is transmitted with different priorities on different carriers in at least two carriers.

[0264] In one embodiment, the transmitting unit 201 is further configured to: determine a second carrier group in the first carrier group, wherein each carrier in the second carrier group has a higher priority for transmitting positioning reference signals than for transmitting other channels / signals.

[0265] In one embodiment, the transmitting unit 201 is further configured to transmit the positioning reference signal via a second carrier group in response to determining that the conditions for transmitting the positioning reference signal are met.

[0266] In one embodiment, the positioning reference signal includes a downlink positioning reference signal, and the transmitting unit 201 is further configured to transmit the downlink positioning reference signal on each carrier of the second carrier group. The positioning reference signal transmission device 200 further includes a receiving unit 202, which is configured to acquire the downlink positioning reference signal measurement results reported by the terminal and the second carrier group information, wherein the second carrier group information includes a carrier group identifier or the carrier identifiers of each carrier included in the second carrier group.

[0267] In one embodiment, the positioning reference signal includes an uplink positioning reference signal. The positioning reference signal transmission device 200 further includes a receiving unit 202, which is configured to receive the uplink positioning reference signal via each carrier in the second carrier group. The transmitting unit 201 is configured to measure the uplink positioning reference signal received on each carrier in the second carrier group and report the measurement results and second carrier group information, wherein the second carrier group information includes a carrier group identifier or carrier identifiers of each carrier included in the second carrier group.

[0268] In one embodiment, in response to determining that the conditions for transmitting a positioning reference signal are not met, the transmitting unit 201 stops transmitting the positioning reference signal through the second carrier group.

[0269] In one embodiment, the conditions include at least one of the following: the sum of the carrier bandwidths of the second carrier group is greater than or equal to a first threshold; the ratio between the sum of the carrier bandwidths of the second carrier group and the sum of the carrier bandwidths of the first carrier group is greater than or equal to a second threshold; the number of intervals between carriers in the second carrier group is less than or equal to a third threshold; the frequency domain interval between carriers in the second carrier group is less than or equal to a fourth threshold; and the second carrier group contains a carrier combination supported by the terminal for transmitting reference signals for positioning purposes.

[0270] In one implementation, the other channels / signals include at least one of the following:

[0271] The serving cell's SSB, the neighboring cell's SSB, the URLLC service's PDCCH and / or PDSCH, the other services' PDCCH and / or PDSCH that are different from the URLLC service, DMRS, CSI-RS, PUCCH and / or PUSCH, and PRACH.

[0272] In one implementation, at least one of the first threshold, the second threshold, the third threshold, and the fourth threshold is determined by one of the following methods: determined based on indication information sent by the core network equipment; determined based on received terminal capability information; or determined based on default threshold values ​​specified in the protocol.

[0273] In one embodiment, the positioning reference signal transmission device 200 further includes a receiving unit 202, which is configured to receive at least one carrier combination information sent by a terminal, wherein the carrier combination information is a carrier group supported by the terminal for transmitting positioning reference signals, and includes a carrier combination identifier or carrier identifiers of each carrier included in the carrier combination.

[0274] Figure 14 This is a block diagram illustrating a reference signal transmission device for positioning purposes according to an exemplary embodiment. (Refer to...) Figure 14The positioning reference signal transmission device 300 is used in core network equipment and includes a transmitting unit 301.

[0275] The transmitting unit 301 is configured to transmit first information to the terminal. The first information is used to indicate a first carrier group for transmitting a positioning reference signal. The first carrier group includes at least two carriers.

[0276] In one embodiment, the positioning reference signal transmission device 300 further includes a receiving unit 302, which is configured to acquire measurement results when transmitting positioning reference signals based on a second carrier group, and acquire the carrier group identifier of the second carrier group or the carrier identifier of each carrier in the second carrier group.

[0277] In one embodiment, the carriers in the second carrier group that transmit positioning reference signals have a higher priority than those that transmit other channels / signals.

[0278] In one embodiment, the positioning reference signal transmission device 300 further includes a receiving unit 302, which is configured to receive at least one carrier combination information transmitted by a terminal. The carrier combination information is a carrier group supported by the terminal for transmitting positioning reference signals, and includes a carrier combination identifier or carrier identifiers of each carrier included in the carrier combination.

[0279] In one embodiment, the positioning reference signal includes a downlink positioning reference signal and / or an uplink positioning reference signal.

[0280] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0281] Figure 15 This is a block diagram illustrating an apparatus 400 for transmitting a reference signal for positioning purposes, according to an exemplary embodiment. The apparatus 400 can be provided as a terminal. For example, the apparatus 400 can be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0282] Reference Figure 15 The device 400 may include one or more of the following components: processing component 402, memory 404, power component 406, multimedia component 408, audio component 410, input / output (I / O) interface 412, sensor component 414, and communication component 416.

[0283] Processing component 402 typically controls the overall operation of device 400, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 402 may include one or more processors 420 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 402 may include one or more modules to facilitate interaction between processing component 402 and other components. For example, processing component 402 may include a multimedia module to facilitate interaction between multimedia component 408 and processing component 402.

[0284] Memory 404 is configured to store various types of data to support the operation of device 400. Examples of such data include instructions for any application or method operating on device 400, contact data, phonebook data, messages, pictures, videos, etc. Memory 404 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0285] The power supply component 406 provides power to the various components of the device 400. The power supply component 406 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to the device 400.

[0286] Multimedia component 408 includes a screen that provides an output interface between the device 400 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 408 includes a front-facing camera and / or a rear-facing camera. When the device 400 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0287] Audio component 410 is configured to output and / or input audio signals. For example, audio component 410 includes a microphone (MIC) configured to receive external audio signals when device 400 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 404 or transmitted via communication component 416. In some embodiments, audio component 410 also includes a speaker for outputting audio signals.

[0288] I / O interface 412 provides an interface between processing component 402 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0289] Sensor assembly 414 includes one or more sensors for providing status assessments of various aspects of device 400. For example, sensor assembly 414 may detect the on / off state of device 400, the relative positioning of components such as the display and keypad of device 400, changes in the position of device 400 or a component of device 400, the presence or absence of user contact with device 400, the orientation or acceleration / deceleration of device 400, and temperature changes of device 400. Sensor assembly 414 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 414 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 414 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0290] Communication component 416 is configured to facilitate wired or wireless communication between device 400 and other devices. Device 400 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 416 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 416 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0291] In an exemplary embodiment, the apparatus 400 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0292] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 404 including instructions, which can be executed by a processor 420 of the device 400 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0293] Figure 16 This is a block diagram illustrating an apparatus 500 for transmitting a reference signal for positioning purposes, according to an exemplary embodiment. For example, apparatus 500 may be provided as a wireless access network device or an LMF (Local Multi-Function). (Refer to...) Figure 16 The apparatus 500 includes a processing component 522, which further includes one or more processors, and memory resources represented by memory 532 for storing instructions, such as application programs, that can be executed by the processing component 522. The application programs stored in memory 532 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 522 is configured to execute instructions to perform the methods described above.

[0294] Device 500 may also include a power supply component 526 configured to perform power management of device 500, a wired or wireless network interface 550 configured to connect device 500 to a network, and an input / output (I / O) interface 558. Device 500 may operate on an operating system stored in memory 532, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or similar.

[0295] In an exemplary embodiment, the apparatus 500 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0296] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 532 including instructions, which can be executed by a processing component 522 of the apparatus 500 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0297] It can be further understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0298] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0299] It is further understood that although operations are described in a specific order in the accompanying drawings in the embodiments of this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to be performed to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0300] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein.

[0301] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A reference signal transmission method for positioning purposes, characterized in that, Applied to terminals, including: Obtain first information, the first information being used to indicate a first carrier group for transmitting a positioning reference signal, the first carrier group including at least two carriers; Receive second information, which indicates the priority of each of the at least two carriers transmitting a positioning reference signal relative to the transmission of other channels / signals; For positioning purposes, the reference signal is transmitted with equal priority on each of at least two carriers. The acquisition of the first information includes: acquiring the first information sent by the core network device; The receiving of the second information includes: receiving second information sent by the wireless access network device; The other channels / signals include at least one of the following: PDCCH, PDSCH, DMRS, or CSI-RS of services other than URLLC services; Send to core network equipment or wireless access network equipment at least one carrier combination information supported by the terminal for transmitting reference signals for positioning purposes, wherein the carrier combination information includes a carrier combination identifier.

2. The method according to claim 1, characterized in that, The other channels / signals also include at least one of the following: The serving cell's SSB, the neighboring cell's SSB, the URLLC service's PDCCH and / or PDSCH, PUCCH and / or PUSCH, and PRACH.

3. The method according to claim 1, characterized in that, The method further includes: If the priority of the positioning reference signal is higher than the priority of the other channels / signals, then the positioning reference signal is transmitted when the positioning reference signal overlaps with the other channels / signals in the time domain. If the other channels / signals occupy the time domain position for transmission in the time domain, the positioning reference signal is transmitted before and after the time domain position for transmission of the positioning reference signal.

4. The method according to claim 1, characterized in that, The method further includes: If the priority of the positioning reference signal is lower than the priority of the other channels / signals, in the event of a transmission conflict, at least two carriers in the first carrier group will not receive the positioning reference signal. If the positioning reference signal has a higher priority than other channels / signals, in the event of a transmission conflict, at least two carriers in the first carrier group shall receive the positioning reference signal.

5. The method according to any one of claims 1-4, characterized in that, Positioning reference signals include downlink positioning reference signals and / or uplink positioning reference signals.

6. A reference signal transmission method for positioning purposes, characterized in that, Applied to wireless access network devices, including: A second message is sent to the terminal, the second message indicating the priority of each carrier in at least two carriers of the first carrier group for transmitting positioning reference signals relative to the transmission of other channels / signals; the positioning reference signals have the same priority on each carrier in the at least two carriers, the first carrier group is indicated to the terminal by the core network equipment through the first message; the other channels / signals include at least one of the following: PDCCH, PDSCH, DMRS or CSI-RS of other services different from URLLC services; The terminal receives at least one carrier combination information for transmitting a reference signal for positioning purposes, wherein the carrier combination information includes a carrier combination identifier.

7. The method according to claim 6, characterized in that, The other channels / signals include at least one of the following: The serving cell's SSB, the neighboring cell's SSB, the URLLC service's PDCCH and / or PDSCH, PUCCH and / or PUSCH, and PRACH.

8. The method according to claim 6, characterized in that, The method further includes: The positioning reference signal is transmitted when its priority is higher than that of the other channels / signals and when the positioning reference signal overlaps with the other channels / signals in the time domain. The positioning reference signal is transmitted when the other channels / signals occupy the time domain location for transmission in the time domain, and the positioning reference signal is transmitted in the time domain location.

9. The method according to claim 6, characterized in that, The method further includes: If the priority of the positioning reference signal is lower than the priority of the other channels / signals, in the event of a transmission conflict, at least two carriers in the first carrier group will not receive the positioning reference signal. If the positioning reference signal has a higher priority than other channels / signals, in the event of a transmission conflict, at least two carriers in the first carrier group shall receive the positioning reference signal.

10. The method according to any one of claims 6-9, characterized in that, Positioning reference signals include downlink positioning reference signals and / or uplink positioning reference signals.

11. A method for transmitting a reference signal for positioning purposes, characterized in that, Applied to core network equipment, including: The terminal sends first information, which indicates a first carrier group for transmitting a positioning reference signal, the first carrier group including at least two carriers; the positioning reference signal is transmitted with the same priority on each of the at least two carriers, the priority being obtained by the terminal by receiving second information sent by the wireless access network device, the second information indicating the priority of each of the at least two carriers for transmitting the positioning reference signal relative to the transmission of other channels / signals; The other channels / signals include at least one of the following: PDCCH, PDSCH, DMRS, or CSI-RS of services other than URLLC services; The receiving terminal sends at least one carrier combination information, wherein the carrier combination information is a carrier group supported by the terminal for transmitting reference signals for positioning purposes, and includes a carrier combination identifier.

12. The method according to claim 11, characterized in that, The other channels / signals also include at least one of the following: The serving cell's SSB, the neighboring cell's SSB, the URLLC service's PDCCH and / or PDSCH, PUCCH and / or PUSCH, and PRACH.

13. The method according to claim 11, characterized in that, The method further includes: The positioning reference signal is transmitted when its priority is higher than that of the other channels / signals and when the positioning reference signal overlaps with the other channels / signals in the time domain. The positioning reference signal is transmitted when the other channels / signals occupy the time domain location for transmission in the time domain, and the positioning reference signal is transmitted in the time domain location.

14. The method according to claim 11, characterized in that, The method further includes: If the priority of the positioning reference signal is lower than the priority of the other channels / signals, in the event of a transmission conflict, at least two carriers in the first carrier group will not receive the positioning reference signal. If the positioning reference signal has a higher priority than other channels / signals, in the event of a transmission conflict, at least two carriers in the first carrier group shall receive the positioning reference signal.

15. The method according to any one of claims 11-14, characterized in that, Positioning reference signals include downlink positioning reference signals and / or uplink positioning reference signals.

16. A reference signal transmission device for positioning purposes, characterized in that, include: The acquisition unit is configured to acquire first information, the first information being used to indicate a first carrier group for transmitting a positioning reference signal, the first carrier group including at least two carriers; The acquisition unit is further configured to receive second information, the second information being used to indicate the priority of each of the at least two carriers transmitting a positioning reference signal relative to the transmission of other channels / signals; For positioning purposes, the reference signal is transmitted with equal priority on each of at least two carriers. The acquisition of the first information includes: acquiring the first information sent by the core network device; The receiving of the second information includes: receiving second information sent by the wireless access network device; The other channels / signals include at least one of the following: PDCCH, PDSCH, DMRS, or CSI-RS of services other than URLLC services; Send at least one carrier combination information supported by the terminal for transmitting reference signals for positioning purposes to core network equipment or wireless access network equipment, wherein the carrier combination information includes a carrier combination identifier.

17. A reference signal transmission device for positioning purposes, characterized in that, include: The transmitting unit is configured to transmit second information to the terminal, the second information being used to indicate the priority of each of the at least two carriers in the first carrier group for transmitting a positioning reference signal relative to the transmission of other channels / signals; The positioning reference signal is transmitted with equal priority on each of at least two carriers, the first carrier group being indicated to the terminal by the core network equipment via first information; the other channels / signals include at least one of the following: PDCCH, PDSCH, DMRS, or CSI-RS of services other than URLLC services; The terminal receives at least one carrier combination information for transmitting a reference signal for positioning purposes, wherein the carrier combination information includes a carrier combination identifier.

18. A reference signal transmission device for positioning purposes, characterized in that, include: The transmitting unit is configured to send first information to the terminal, the first information indicating a first carrier group for transmitting a positioning reference signal, the first carrier group including at least two carriers; the positioning reference signal is transmitted with the same priority on each of the at least two carriers, the priority being obtained by the terminal by receiving second information sent by the wireless access network device, the second information indicating the priority of each of the at least two carriers for transmitting the positioning reference signal relative to the transmission of other channels / signals; The other channels / signals include at least one of the following: PDCCH, PDSCH, DMRS, or CSI-RS of services other than URLLC services; The receiving terminal sends at least one carrier combination information, wherein the carrier combination information is a carrier group supported by the terminal for transmitting reference signals for positioning purposes, and includes a carrier combination identifier.

19. A reference signal transmission device for positioning purposes, characterized in that, include: processor; Memory used to store processor-executable instructions; The processor is configured to: perform the method according to any one of claims 1 to 5, or perform the method according to any one of claims 6 to 10, or perform the method according to any one of claims 11 to 15.

20. A storage medium, characterized in that, The storage medium stores instructions that, when executed by a processor, cause the method described in any one of claims 1 to 5 to be implemented, or cause the method described in any one of claims 6 to 10 to be implemented, or cause the method described in any one of claims 11 to 15 to be implemented.

Images