Positioning reference signal transmission method, apparatus, and storage medium

Abstract

The present disclosure relates to a method, an apparatus, and a storage medium for transmitting a positioning reference signal. The method is applied to a terminal and includes a step of acquiring first information for indicating a first carrier group for transmitting a positioning reference signal, the first carrier group including at least two carriers. The present disclosure can improve positioning accuracy.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technologies, and particularly to a method, apparatus, and storage medium for transmitting positioning reference signals.

Background Art

[0002] In 5G R16, many positioning technologies have been introduced, and positioning of terminals can be realized. In some positioning technologies, several positioning reference signals are defined in the system. For the downlink, a positioning reference signal (PRS) is defined. For the uplink, a sounding reference signal (SRS) for positioning measurement has been introduced.

[0003] In related technologies, the transmission of positioning reference signals is transmitted through a frequency layer, but sufficient positioning accuracy cannot be achieved.

Summary of the Invention

Problems to be Solved by the Invention

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

Means for Solving the Problems

[0005] According to a first aspect of an embodiment of the present disclosure, a method for transmitting a positioning reference signal applied to a terminal is provided, including the step of obtaining first information for indicating a first carrier group for transmitting the positioning reference signal, where the first carrier group includes at least two carriers.

[0006] In one embodiment, the method further includes receiving second information for indicating a priority of transmission of the positioning reference signal by each carrier among the at least two carriers with respect to transmission of other channels / signals.

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

[0008] In one embodiment, the priorities of transmission of the positioning reference signal on different carriers among the at least two carriers are different.

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

[0010] In one embodiment, the method further includes transmitting the positioning reference signal in the second carrier group in response to determining that the condition for transmitting the positioning reference signal is satisfied.

[0011] In one embodiment, the positioning reference signal includes a downlink positioning reference signal, and the step of transmitting the positioning reference signal in the second carrier group includes receiving the downlink positioning reference signal on each carrier of the second carrier group, and performing measurements on the downlink positioning reference signal and reporting 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.

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

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

[0014] In one embodiment, the condition includes that the sum of the carrier bandwidths of the second carrier group is greater than or equal to a first threshold, that the ratio of the sum of the carrier bandwidths of the second carrier group to the sum of the carrier bandwidths of the first carrier group is greater than or equal to a second threshold, that the number of intervals between carriers in the second carrier group is less than or equal to a third threshold, that the frequency domain interval value between carriers in the second carrier group is less than or equal to a fourth threshold, and that there exists a carrier combination for transmitting the positioning reference signal supported by the terminal in the second carrier group, and includes at least one of them.

[0015] In one embodiment, the step of obtaining the first information includes obtaining the first information transmitted from a core network device.

[0016] In one embodiment, the step of receiving the second information includes receiving the second information transmitted from a radio access network device.

[0017] In one embodiment, the other channel / signal is It includes at least one of the SSB of the serving cell, the SSB of the adjacent cell, the PDCCH and / or PDSCH of the URLLC traffic, the PDCCH and / or PDSCH of other traffic different from the URLLC traffic, the DMRS, the CSI-RS, the PUCCH and / or PUSCH, and the PRACH.

[0018] In one embodiment, at least one of the first threshold, the second threshold, the third threshold, and the fourth threshold is determined by one of: determining based on the instruction information transmitted from the received core network device, determining based on the instruction information transmitted from the received radio access network device, and determining based on the threshold stored in the terminal.

[0019] In one embodiment, the method further includes a step of transmitting, by the terminal, at least one carrier combination information for transmitting a positioning reference signal supported by the terminal to a core network device or a radio access network device, where the carrier combination information includes a carrier combination identifier or a carrier identifier of each carrier included in the carrier combination.

[0020] According to a second aspect of the embodiments of the present disclosure, a method for transmitting a positioning reference signal applied to a radio access network device is provided, including a step of transmitting, to a terminal, second information for indicating the priority of the transmission of the positioning reference signal by each carrier among at least two carriers in a first carrier group with respect to the transmission of other channels / signals.

[0021] In one embodiment, the priority of the transmission of the positioning reference signal by each of the at least two carriers is the same.

[0022] In one embodiment, the priority of the transmission of the positioning reference signal by different carriers among the at least two carriers is different.

[0023] In one embodiment, the method further includes a step of determining a second carrier group from the first carrier group, wherein the priority of each carrier in the second carrier group for transmitting a positioning reference signal is higher than the priority for transmitting other channels / signals.

[0024] In one embodiment, the method further includes a step of transmitting a positioning reference signal in the second carrier group in response to determining that the condition for transmitting the positioning reference signal is satisfied.

[0025] In one embodiment, the positioning reference signal includes a downlink positioning reference signal, and the step of transmitting the positioning reference signal in the second carrier group includes a step of transmitting a downlink positioning reference signal on each carrier of the second carrier group, and a step of obtaining measurement results of the downlink positioning reference signal reported from a 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.

[0026] In one embodiment, the positioning reference signal includes an uplink positioning reference signal, and the step of transmitting the positioning reference signal in the second carrier group includes a step of receiving an uplink positioning reference signal on each carrier of the second carrier group, and a step of performing measurements on the uplink positioning reference signal received on each carrier of the second carrier group and reporting 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.

[0027] In one embodiment, the method further includes stopping transmitting the positioning reference signal in the second carrier group in response to determining that a condition for transmitting the positioning reference signal is not satisfied.

[0028] In one embodiment, the condition includes at least one of: the sum of the carrier bandwidths of the second carrier group is greater than or equal to a first threshold; the ratio of the sum of the carrier bandwidths of the second carrier group to 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 value between carriers in the second carrier group is less than or equal to a fourth threshold; and there exists a carrier combination for transmitting the positioning reference signal supported by the terminal in the second carrier group.

[0029] In one embodiment, the other channel / signal includes at least one of: the SSB of the serving cell, the SSB of the neighboring cell, the PDCCH and / or PDSCH of the URLLC traffic, the PDCCH and / or PDSCH of other traffic different from the URLLC traffic, the DMRS, the CSI-RS, the PUCCH and / or PUSCH, and the PRACH.

[0030] In one embodiment, at least one of the first threshold, the second threshold, the third threshold, and the fourth threshold is determined by one of: based on instruction information transmitted from the received core network device; based on the received terminal capability information; and based on the default value of the threshold defined by the protocol.

[0031] In one embodiment, the method comprises receiving at least one carrier combination information transmitted from a terminal, where the carrier combination information is a carrier group for transmitting a positioning reference signal supported by the terminal, and further comprises a step of including a carrier combination identifier or a carrier identifier of each carrier included in the carrier combination.

[0032] According to a third aspect of the embodiments of the present disclosure, there is provided a method for transmitting a positioning reference signal applied to a core network device, comprising transmitting, to a terminal, first information for instructing a first carrier group for transmitting a positioning reference signal, where the first carrier group includes at least two carriers.

[0033] In one embodiment, the method further comprises obtaining a measurement result when transmitting a positioning reference signal by a second carrier group, and obtaining a carrier group identifier of the second carrier group or a carrier identifier of each carrier in the second carrier group.

[0034] In one embodiment, the priority of each carrier in the second carrier group for transmitting a positioning reference signal is higher than the priority for transmitting other channels / signals.

[0035] In one embodiment, the method comprises receiving at least one carrier combination information transmitted from a terminal, where the carrier combination information is a carrier group for transmitting a positioning reference signal supported by the terminal, and further comprises a step of including a carrier combination identifier or a carrier identifier of each carrier included in the carrier combination.

[0036] In one embodiment, the positioning reference signal includes a downlink positioning reference signal and / or an uplink positioning reference signal.

[0037] According to a fourth aspect of the embodiments of the present disclosure, a positioning reference signal transmission device is provided, which includes an acquisition unit configured to acquire first information for indicating a first carrier group for transmitting a positioning reference signal, where the first carrier group includes at least two carriers.

[0038] In one embodiment, the acquisition unit is further configured to receive second information for indicating the priority of the transmission of the positioning reference signal by each of the at least two carriers with respect to the transmission of other channels / signals.

[0039] In one embodiment, the priority of the transmission of the positioning reference signal by each of the at least two carriers is the same.

[0040] In one embodiment, the priorities of the transmission of the positioning reference signal by different carriers among the at least two carriers are different.

[0041] In one embodiment, the positioning reference signal transmission device further includes a processing unit configured to determine a second carrier group from the first carrier group, and the priority of each carrier in the second carrier group for transmitting the positioning reference signal is higher than the priority of transmitting other channels / signals.

[0042] In one embodiment, the positioning reference signal transmission device further includes a processing unit, and the processing unit transmits the positioning reference signal in the second carrier group in response to determining that the condition for transmitting the positioning reference signal is satisfied.

[0043] 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, and the transmission unit is configured to perform measurement of the downlink positioning reference signal and report a measurement result and second carrier group information, where the second carrier group information includes a carrier group identifier or carrier identifiers of each carrier included in the second carrier group.

[0044] In one embodiment, the positioning reference signal includes an uplink positioning reference signal, the positioning reference signal transmission device further includes a transmission unit, and the transmission unit is configured to transmit the uplink positioning reference signal on each carrier of the second carrier group.

[0045] In one embodiment, the positioning reference signal transmission device further includes a processing unit, and the processing unit stops transmitting the positioning reference signal in the second carrier group in response to determining that the condition for transmitting the positioning reference signal is not satisfied.

[0046] In one embodiment, the condition is that the sum of the carrier bandwidths of the second carrier group is greater than or equal to a first threshold, that the ratio of the sum of the carrier bandwidths of the second carrier group to the sum of the carrier bandwidths of the first carrier group is greater than or equal to a second threshold, that the number of intervals between carriers in the second carrier group is less than or equal to a third threshold, that the frequency domain interval value between carriers in the second carrier group is less than or equal to a fourth threshold, and that there is a carrier combination for transmitting the positioning reference signal supported by the terminal in the second carrier group, and includes at least one of them.

[0047] In one embodiment, the acquisition unit is configured to acquire first information transmitted from a core network device.

[0048] In one embodiment, the acquisition unit is configured to receive second information transmitted from a radio access network device.

[0049] In one embodiment, the other channel / signal is at least one of the SSB of the serving cell, the SSB of the neighboring cell, the PDCCH and / or PDSCH of the URLLC traffic, the PDCCH and / or PDSCH of other traffic different from the URLLC traffic, the DMRS, the CSI-RS, the PUCCH and / or PUSCH, and the PRACH.

[0050] In one embodiment, at least one of the first threshold, the second threshold, the third threshold, and the fourth threshold is determined by one of determining based on the instruction information transmitted from the received core network device, determining based on the instruction information transmitted from the received radio access network device, and determining based on the threshold stored in the terminal.

[0051] In one embodiment, the positioning reference signal transmission device further includes a transmission unit, and the transmission unit is configured to transmit, to a core network device or a radio access network device, at least one carrier combination information for transmitting a positioning reference signal supported by the terminal, where the carrier combination information includes a carrier combination identifier or a carrier identifier of each carrier included in the carrier combination.

[0052] According to a fifth aspect of the embodiments of the present disclosure, a positioning reference signal transmission device is provided, including a transmission unit configured to transmit, to a terminal, second information for indicating a priority of transmission of a positioning reference signal by each carrier among at least two carriers in a first carrier group with respect to transmission of other channels / signals.

[0053] In one embodiment, the transmission priorities of each of the at least two carriers of the positioning reference signal are the same.

[0054] In one embodiment, the transmission priorities of different carriers among the at least two carriers of the positioning reference signal are different.

[0055] In one embodiment, the transmission unit is further configured to determine a second carrier group from the first carrier group, and the priority of each carrier in the second carrier group for transmitting the positioning reference signal is higher than the priority for transmitting other channels / signals.

[0056] In one embodiment, the transmission unit is further configured to transmit the positioning reference signal in the second carrier group in response to determining that the condition for transmitting the positioning reference signal is satisfied.

[0057] In one embodiment, the positioning reference signal includes a downlink positioning reference signal, and the transmission 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, and the receiving unit is configured to obtain the measurement result of the downlink positioning reference signal reported from the terminal and the second carrier group information, and the second carrier group information includes a carrier group identifier or carrier identifiers of each carrier included in the second carrier group.

[0058] In one embodiment, the positioning reference signal includes an uplink positioning reference signal, the positioning reference signal transmission device further includes a receiving unit, and the receiving unit is configured to receive an uplink positioning reference signal on each carrier of the second carrier group. The transmitting unit is configured to perform measurements on the uplink positioning reference signals received on each carrier of the second carrier group and report measurement results and second carrier group information, where the second carrier group information includes a carrier group identifier or carrier identifiers of each carrier included in the second carrier group.

[0059] In one embodiment, in response to determining that the condition for transmitting the positioning reference signal is not satisfied, the transmitting unit stops transmitting the positioning reference signal in the second carrier group.

[0060] In one embodiment, the condition includes at least one of: the sum of the carrier bandwidths of the second carrier group is greater than or equal to a first threshold; the ratio of the sum of the carrier bandwidths of the second carrier group to 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 value between carriers in the second carrier group is less than or equal to a fourth threshold; and there exists a carrier combination for transmitting the positioning reference signal that is supported by the terminal in the second carrier group.

[0061] In one embodiment, the other channel / signal is at least one of: the SSB of the serving cell, the SSB of the neighboring cell, the PDCCH and / or PDSCH of the URLLC traffic, the PDCCH and / or PDSCH of other traffic different from the URLLC traffic, the DMRS, the CSI-RS, the PUCCH and / or PUSCH, and the PRACH.

[0062] 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: determining based on instruction information transmitted from a received core network device; determining based on received terminal capability information; and determining based on a default value of a threshold value defined by a protocol.

[0063] In one embodiment, the positioning reference signal transmission device further includes a receiving unit, and the receiving unit is configured to receive at least one carrier combination information transmitted from a terminal, where the carrier combination information is a carrier group for transmitting a positioning reference signal supported by the terminal and includes a carrier combination identifier or a carrier identifier of each carrier included in the carrier combination.

[0064] According to a sixth aspect of the embodiments of the present disclosure, a positioning reference signal transmission device is provided. A transmitting unit configured to transmit to a terminal first information for instructing a first carrier group for transmitting a positioning reference signal, where the first carrier group includes at least two carriers.

[0065] In one embodiment, the positioning reference signal transmission device further includes a receiving unit, and the receiving unit is configured to obtain a measurement result when a positioning reference signal is transmitted by a second carrier group, and obtain a carrier group identifier of the second carrier group or a carrier identifier of each carrier in the second carrier group.

[0066] In one embodiment, the priority of each carrier in the second carrier group for transmitting a positioning reference signal is higher than the priority of transmitting other channels / signals.

[0067] In one embodiment, the positioning reference signal transmission device further includes a receiving unit, and the receiving unit is configured to receive at least one carrier combination information transmitted from a terminal, where the carrier combination information is a carrier group for transmitting a positioning reference signal supported by the terminal, and includes a carrier combination identifier or a carrier identifier of each carrier included in the carrier combination.

[0068] In one embodiment, the positioning reference signal includes a downlink positioning reference signal and / or an uplink positioning reference signal.

[0069] According to a seventh aspect of the embodiments of the present disclosure, a positioning reference signal transmission device is provided. It includes a processor and a memory for storing instructions executable by the processor. Here, the processor is configured to execute the method described in the first aspect or any embodiment of the first aspect.

[0070] According to an eighth aspect of the embodiments of the present disclosure, a positioning reference signal transmission device is provided. It includes a processor and a memory for storing instructions executable by the processor. Here, the processor is configured to execute the method described in the second aspect or any embodiment of the second aspect.

[0071] According to a ninth aspect of the embodiments of the present disclosure, a positioning reference signal transmission device is provided. It includes a processor and a memory for storing instructions executable by the processor. Here, the processor is configured to execute the method described in the third aspect or any embodiment of the third aspect.

[0072] According to a tenth aspect of an embodiment of the present disclosure, there is provided a storage medium storing instructions, and when the instructions in the storage medium are executed by a processor, the method described in the first aspect or any embodiment of the first aspect is realized.

[0073] According to an eleventh aspect of an embodiment of the present disclosure, there is provided a storage medium storing instructions, and when the instructions in the storage medium are executed by a processor, the method described in the second aspect or any embodiment of the second aspect is realized.

[0074] According to a twelfth aspect of an embodiment of the present disclosure, there is provided a storage medium storing instructions, and when the instructions in the storage medium are executed by a processor, the method described in the second aspect or any embodiment of the second aspect is realized.

[0075] The technical solution provided by the embodiment of the present disclosure can achieve the following effective effects. A first carrier group for transmitting a positioning reference signal in the first information acquired by the terminal is indicated, and since the first carrier group includes at least two carriers, it is possible to realize the transmission of the positioning reference signal by the at least two carriers, that is, to realize the transmission of the positioning reference signal by means of carrier aggregation, and further improve the positioning accuracy.

[0076] It should be noted that the above general description and the following detailed description are merely exemplary and explanatory and do not limit the present disclosure.

Brief Description of the Drawings

[0077] The drawings here are incorporated into the specification and form a part of this specification, indicating embodiments consistent with the present disclosure and explaining the principles of the present disclosure together with the specification.

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Embodiments for Carrying Out the Invention

[0078] Here, exemplary embodiments will be described in detail, and the examples are shown in the drawings. The following description is related to the drawings. Unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not necessarily represent all embodiments that are consistent with the present disclosure.

[0079] The present disclosure provides a positioning reference signal transmission method, which is applicable to the wireless communication system shown in FIG. 1. As shown in FIG. 1, a terminal accesses a wireless access network through a wireless access network device such as a base station, and the wireless access network device and the core network device complete the data return and forwarding to perform various communication services.

[0080] A wireless communication system is a network that provides a wireless communication function. The wireless communication system can use different communication technologies such as, for example, 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 FDMA (SC-FDMA), Carrier Sense Multiple Access with Collision Avoidance. Based on factors such as the capacity, speed, and delay of different networks, the network can be divided into 2G (generation in English) networks, 3G networks, 4G networks, or future evolved networks such as 5G networks, also known as New Radio (NR). For ease of explanation, in this disclosure, the wireless communication network may sometimes be abbreviated as the network. In this disclosure, the network may include a Radio Access Network (RAN) and a Core Network (CN). The network includes network devices, and the network devices may be, for example, wireless network devices, core network devices, etc. Here, the wireless network device is also called a base station. The network can provide network services to the terminal through the network device. Different communication carriers can provide different network services to the terminal, and it can also be understood that different communication carriers correspond to different communication carrier networks.For example, in 5G NR, a radio access network device, which is a wireless network device, can be called a gNB. The gNB can also be expressed as at least one Transmission Reception Point (TRP). The core network device includes a location management function network element. Optionally, the location management function network element includes a location server, and the location server can be implemented as one of LMF (Location Management Function), E-SMLC (Enhanced Serving Mobile Location Centre), SUPL (Secure User Plane Location), and SUPL SLP (SUPL Location Platform).

[0081] A terminal may sometimes be called a Mobile Station (MS), and may also be called a User Equipment (UE), a Mobile Terminal (MT), etc. It is a device that provides users with voice and / or data connectivity. For example, the terminal may be a handheld device with a wireless connection function, an in-vehicle device, etc. Currently, as examples of some terminals, there are mobile phones, Pocket Personal Computers (PPCs), personal digital assistants, Personal Digital Assistants (PDAs), notebook computers, tablets, wearable devices, or in-vehicle devices. In the embodiments of the present disclosure, hereinafter, examples will be described with the terminal called a UE.

[0082] In 5G R16, many positioning technologies have been introduced, enabling the positioning of terminals. In some positioning technologies, positioning is performed based on positioning reference signals. In related technologies, each positioning reference signal is transmitted occupying one frequency layer. However, there may be a problem that sufficient positioning accuracy cannot be obtained in one frequency layer. In order to improve positioning accuracy, how to transmit the positioning reference signal is a problem to be solved.

[0083] In view of this, embodiments of the present disclosure provide a method for transmitting a positioning reference signal, and by transmitting the positioning reference signal in the manner of carrier aggregation, the positioning accuracy is improved.

[0084] Here, the positioning reference signal according to the embodiments of the present disclosure may include a downlink positioning reference signal such as PRS, or may include an uplink positioning reference signal such as SRS, and of course, may also include other positioning reference signals, for example, positioning reference signals newly introduced later.

[0085] FIG. 2 is a flowchart of a method for transmitting a positioning reference signal shown by an exemplary embodiment. The method for transmitting a positioning reference signal may be implemented alone or may be implemented together with other embodiments of the present disclosure. As shown in FIG. 2, the method for transmitting a positioning reference signal is applied to a terminal and includes the following steps.

[0086] In step S11, first information for indicating a first carrier group for transmitting a positioning reference signal is obtained, and the first carrier group includes at least two carriers.

[0087] In the embodiments of the present disclosure, the first information can be understood as the setting information of the positioning reference signal. The first information includes carrier information necessary for transmitting the positioning reference signal.

[0088] Here, in the embodiments of the present disclosure, the carrier information indicated by the first information includes a carrier group (hereinafter referred to as the first carrier group) set for transmitting the positioning reference signal. Here, the first carrier group includes a plurality of carriers, and it may be understood that at least two carriers are included.

[0089] In the embodiments of the present disclosure, the first information obtained by the terminal includes the first carrier group, the first carrier group includes a plurality of carriers, and further, based on the plurality of carriers, the positioning reference signal can be transmitted in a carrier aggregation manner, and the positioning accuracy can be improved compared with transmitting the positioning reference signal in a single carrier manner.

[0090] The positioning reference signal transmission method provided by the embodiments of the present disclosure can perform transmission based on the transmission priority of the positioning reference signal with respect to the transmission of other channels / signals.

[0091] Other channels / signals according to the embodiments of the present disclosure are It may be at least one of a serving cell's Synchronization Signal and PBCH block (SSB), an SSB of an adjacent cell, a Physical Downlink Control Channel (PDCCH) and / or a Physical Downlink Shared Channel (PDSCH) of Ultra-Reliable and Low Latency Communications (URLLC) traffic, a PDCCH and / or a PDSCH of other traffic different from URLLC traffic, a Demodulation Reference Signal (DMRS), a Channel State Information (CSI)-Reference Signal (RS), a Physical Uplink Control Channel (PUCCH) and / or a Physical Uplink Shared Channel (PUSCH), and a Physical Random Access Channel (PRACH).

[0092] Furthermore, in an embodiment of the present disclosure, the first information may be set and transmitted by a core network device such as a Location Management Function (LMF). The terminal receives the first information transmitted from a core network device such as the LMF, and determines a first carrier group for transmitting a positioning reference signal based on the first information.

[0093] Here, the transmission priority of the positioning reference signal with respect to the transmission of other channels / signals may be indicated by the network device. Hereinafter, the information indicating the transmission priority of the transmission of the positioning reference signal with respect to other channels / signals is referred to as second information.

[0094] Figure 3 is a flowchart of a positioning reference signal transmission method shown by an exemplary embodiment. The positioning reference signal transmission method may be implemented alone or in conjunction with other embodiments of the present disclosure. As shown in Figure 3, the positioning reference signal transmission method is applied to a terminal and includes the following steps.

[0095] In step S21, receive second information for indicating the priority of the transmission of the positioning reference signal by each carrier among at least two carriers with respect to the transmission of other channels / signals.

[0096] In an embodiment of the present disclosure, in the second indication information received by the terminal, the transmission priority of the positioning reference signal with respect to other channels / signals is indicated, and based on this priority, the transmission of the positioning reference signal can be performed.

[0097] Here, when the priority of the positioning reference signal is higher than that of other channels / signals, when the positioning reference signal and other channels / signals overlap in the time domain position, the positioning reference signal can be preferentially transmitted. Alternatively, when the time domain position where other channels / signals are transmitted in the time domain is before or after the time domain position where the positioning reference signal is transmitted, the positioning reference signal can be preferentially transmitted. Furthermore, the transmission of other channels / signals may be discarded or transmitted later.

[0098] In an embodiment of the present disclosure, the terminal can receive first information for setting a first carrier group and receive second information. In the second information, the priority of the transmission of the positioning reference signal by each carrier in the first carrier group with respect to other channels / signals is indicated. Furthermore, when the terminal transmits the positioning reference signal with multiple carriers, based on the priority of each carrier itself for transmitting the positioning reference signal, the transmission of the positioning reference signal can be performed.

[0099] In one embodiment of the present disclosure, the second information may be set and transmitted by a radio access network device such as a gNB. The terminal receives the second information transmitted from the radio access network device, and based on the second information, determines the priority of the transmission of the positioning reference signal by each carrier in the first carrier group with respect to other channels / signals.

[0100] Hereinafter, embodiments of the present disclosure will describe embodiments of the priority of the positioning reference signal.

[0101] In one embodiment, the priority of transmission on each of at least two carriers of the positioning reference signal is the same, that is, the priority of transmitting the positioning reference signal on all carriers in the first carrier group is the same. Taking the downlink positioning reference signal as an example, on the one hand, when the priority of the positioning reference signal is lower than the priority of other channels / signals, when a transmission collision occurs, the terminal cannot receive the positioning reference signal on all carriers in the first carrier group. On the other hand, when the priority of the positioning reference signal is higher than the priority of other channels / signals, when a transmission collision occurs, the terminal can receive the positioning reference signal on all carriers in the first carrier group.

[0102] In another embodiment, the priority of transmission on different carriers among at least two carriers of the positioning reference signal is different, that is, there are carriers with different priorities of transmitting the positioning reference signal in the first carrier group. For example, in one example, the PRS priority and the priority of the PDCCH and / or PDSCH of the URLLC traffic may be different for different carriers. For example, the first carrier group includes Carrier 1 and Carrier 2. In Carrier 1, the PRS priority is higher than the priority of the PDCCH and / or PDSCH of the URLLC traffic. In Carrier 2, the PRS priority is lower than the priority of the PDCCH and / or PDSCH of the URLLC traffic, but higher than the priority of the PDCCH and / or PDSCH of other traffic.

[0103] Here, since the priorities of transmitting the positioning reference signals on different carriers are different, in the embodiments of the present disclosure, in order to perform positioning with high precision, when transmitting the positioning reference signals, a carrier with a higher priority than the priorities of transmitting other channels / signals is determined in the first carrier group, and the positioning reference signals can be transmitted.

[0104] FIG. 4 is a flowchart of a method for transmitting positioning reference signals shown by an exemplary embodiment. The method for transmitting positioning reference signals may be implemented alone or may be implemented together with other embodiments of the present disclosure. As shown in FIG. 4, the method for transmitting positioning reference signals is applied to a terminal and includes the following steps.

[0105] In step S31, a second carrier group is determined from the first carrier group, and the priority of each carrier in the second carrier group for transmitting the positioning reference signals is higher than the priority of transmitting other channels / signals.

[0106] Furthermore, in the embodiments of the present disclosure, after determining the second carrier group with a higher priority than the priorities of transmitting other channels / signals, the terminal can transmit the positioning reference signals based on the second carrier group.

[0107] Here, in the embodiments of the present disclosure, the terminal can further determine whether to transmit the positioning reference signals in the determined second carrier group. For example, the terminal can determine whether to receive PRS in the second carrier group. Or the terminal can determine whether to transmit SRS in the second carrier group.

[0108] In the embodiments of the present disclosure, the conditions for determining whether to transmit the positioning reference signals in the second carrier group include the conditions for determining to transmit the positioning reference signals or the conditions for not transmitting the positioning reference signals. Based on the conditions, it is determined whether to transmit the positioning reference signals in the second carrier group.

[0109] Here, in the embodiments of the present disclosure, the conditions for determining to transmit the positioning reference signal are as follows: A: The sum of the carrier bandwidths of the second carrier group is greater than or equal to a first threshold; B: The ratio of the sum of the carrier bandwidths of the second carrier group to the sum of the carrier bandwidths of the first carrier group is greater than or equal to a second threshold; C: The number of intervals between carriers in the second carrier group is less than or equal to a third threshold; D: The frequency domain interval value between carriers in the second carrier group is less than or equal to a fourth threshold; E: There is at least one carrier combination for transmitting the positioning reference signal supported by the terminal in the second carrier group.

[0110] Alternatively, in the embodiments of the present disclosure, the conditions for not transmitting the positioning reference signal may be determined. For example, the conditions for not transmitting the positioning reference signal are as follows: A: The sum of the carrier bandwidths of the second carrier group is less than a first threshold; B: The ratio of the sum of the carrier bandwidths of the second carrier group to the sum of the carrier bandwidths of the first carrier group is less than a second threshold; C: The number of intervals between carriers in the second carrier group is greater than a third threshold; D: The frequency domain interval value between carriers in the second carrier group is greater than a fourth threshold; E: There may be at least one carrier combination for transmitting the positioning reference signal not supported by the terminal in the second carrier group.

[0111] In one embodiment, in response to determining that the condition for the terminal to transmit the positioning reference signal is satisfied, the positioning reference signal is transmitted in the second carrier group. Alternatively, in response to determining that the condition for the terminal not to transmit the positioning reference signal is not satisfied, the positioning reference signal is transmitted in the second carrier group.

[0112] In another embodiment, in response to determining that the condition that the terminal does not transmit the positioning reference signal is satisfied, the transmission of the positioning reference signal in the second carrier group is stopped. Alternatively, in response to determining that the condition that the terminal transmits the positioning reference signal is not satisfied, the transmission of the positioning reference signal in the second carrier group is stopped.

[0113] In the embodiments of the present disclosure, at least one of the first threshold, the second threshold, the third threshold, and the fourth threshold regarding the determination of whether to transmit the positioning reference signal in the second carrier group can be determined by one of the following methods 1 to 3. In Method 1, the instruction information transmitted from a core network device such as an LMF is received and determined based on the received instruction information transmitted from a core network device such as an LMF. The corresponding threshold can be indicated in the instruction information transmitted from a core network device such as an LMF. In Method 2, the instruction information transmitted from a radio access network device is received and determined based on the received instruction information transmitted from a radio access network device. The corresponding threshold can be indicated in the instruction information transmitted from the radio access network device. In Method 3, it is determined based on the threshold stored in the terminal. In one example, the default value of the threshold can be defined based on a protocol, and the terminal stores the default value of the threshold in the chip of the terminal.

[0114] In an embodiment of the present disclosure, when determining whether to transmit a positioning reference signal in a second carrier group by a carrier combination method, the terminal can determine whether to transmit the positioning reference signal in the second carrier group based on the supported or unsupported carrier combinations. For example, the terminal reports multiple types of supported carrier combinations or multiple types of unsupported carrier combinations. For example, there are carriers C1, C2... C10 arranged in order from low frequency to high frequency. The terminal reports that the supported combinations are C1C2, C1C2C3, C1C3, C1, C3C4...

[0115] Furthermore, in an embodiment of the present disclosure, the terminal can select the carrier combinations it supports and transmit at least one carrier combination information for transmitting the positioning reference signal supported by the terminal to a core network device such as an LMF or a radio access network device. Here, the carrier combination information includes a carrier combination identifier or a carrier identifier of each carrier included in the carrier combination.

[0116] In one example, if the terminal supports C1C2 or C2C4 but does not support C1C2C4, and due to the influence of priority, the carrier combination that enables the transmission of the positioning reference signal is C1C2C4, the terminal can select which of C1C2 and C2C4 to measure by itself and report the selected carrier combination information, or the terminal can determine which of C1C2 and C2C4 to measure based on the bandwidth magnitudes of C1C2 and C2C4.

[0117] It should be noted that the positioning reference signal according to each of the above embodiments of the present disclosure may be a downlink positioning reference signal or an uplink positioning reference signal.

[0118] Hereinafter, the embodiments of the present disclosure will separately describe the transmission of the downlink positioning reference signal and the uplink positioning reference signal.

[0119] In one embodiment, the positioning reference signal includes a downlink positioning reference signal. The downlink positioning reference signal includes a PRS or other downlink positioning reference signals, for example, downlink positioning reference signals that may be newly introduced later.

[0120] FIG. 5 is a flowchart of a positioning reference signal transmission method shown by an exemplary embodiment. The positioning reference signal transmission method may be implemented alone or in combination with other embodiments of the present disclosure. As shown in FIG. 5, the positioning reference signal transmission method is applied to a terminal and includes the following steps.

[0121] In step S41, receive a downlink positioning reference signal on each carrier of the second carrier group.

[0122] In step S42, measure the downlink positioning reference signal and report the measurement result and the second carrier group information.

[0123] Here, the second carrier group information includes a carrier group identifier or carrier identifiers of each carrier included in the second carrier group.

[0124] In one example, the terminal determines to receive a measurement PRS on each carrier of the second carrier group. The terminal performs PRS measurement and then reports the measurement result and the second carrier group information.

[0125] Here, the carrier group identifier or carrier identifier in the second carrier group information can be used by a radio access network device such as a gNB to instruct the terminal of the positioning reference signal priority (second information) on each carrier and at the same time, or before or after that, notify a core network device such as an LMF.

[0126] In another embodiment, the positioning reference signal includes an uplink positioning reference signal. The uplink positioning reference signal includes SRS or other uplink positioning reference signals, for example, uplink positioning reference signals that may be newly introduced later.

[0127] FIG. 6 is a flowchart of a positioning reference signal transmission method shown by an exemplary embodiment. The positioning reference signal transmission method may be implemented alone or in combination with other embodiments of the present disclosure. As shown in FIG. 6, the positioning reference signal transmission method is applied to a terminal and includes the following steps.

[0128] In step S51, an uplink positioning reference signal is transmitted on each carrier of the second carrier group.

[0129] In an embodiment of the present disclosure, the terminal transmits an uplink positioning reference signal on each carrier of the second carrier group. The radio access network device, that is, the TRP, can receive the uplink positioning reference signal, measure the uplink positioning reference signal, and report the measurement result.

[0130] Here, in an embodiment of the present disclosure, when the priority of the uplink positioning reference signal is relatively low, the network device does not need to perform positioning based on the uplink positioning reference signal with low priority thereafter, and the terminal may not transmit the uplink positioning reference signal, thus saving communication overhead.

[0131] The positioning reference signal transmission method provided by the embodiments of the present disclosure transmits the positioning reference signal based on the carrier aggregation method. By indicating the priority of transmitting the positioning reference signal on each carrier aggregated by carrier aggregation, the positioning reference signal for measurement is measured and the measurement result is reported based on the transmission priority, thereby improving the positioning accuracy.

[0132] Based on the same concept, embodiments of the present disclosure further provide a positioning reference signal transmission method applied to a network device.

[0133] In one embodiment, the positioning reference signal transmission method is applied to a radio access network device. The radio access network device may be, for example, a Transmission Reception Point (TRP).

[0134] FIG. 7 is a flowchart of a positioning reference signal transmission method shown by an exemplary embodiment. The positioning reference signal transmission method may be implemented alone or in conjunction with other embodiments of the present disclosure. As shown in FIG. 7, the positioning reference signal transmission method is applied to a radio access network device and includes the following steps.

[0135] In step S61, second information for indicating the priority of the transmission of the positioning reference signal by each carrier among at least two carriers in the first carrier group with respect to the transmission of other channels / signals is transmitted to the terminal.

[0136] In one embodiment, the other channels / signals include at least one of the SSB of the serving cell, the SSB of the neighboring cell, the PDCCH and / or PDSCH of the URLLC traffic, the PDCCH and / or PDSCH of other traffic different from the URLLC traffic, the DMRS, the CSI-RS, the PUCCH and / or PUSCH, and the PRACH.

[0137] In one embodiment, the priorities of the transmission of the positioning reference signal by each of at least two carriers are the same. In another embodiment, the priorities of the transmission of the positioning reference signal by different carriers among at least two carriers are different.

[0138] In an embodiment of the present disclosure, when the transmission priorities of different carriers among at least two carriers of the positioning reference signal are different, the network device can further determine a second carrier group from a first carrier group, and the priority of each carrier in the second carrier group for transmitting the positioning reference signal is higher than the priority of transmitting other channels / signals.

[0139] In an embodiment of the present disclosure, after determining the second carrier group, the network device can determine whether to transmit the positioning reference signal in the second carrier group.

[0140] In an embodiment of the present disclosure, the condition for determining whether to transmit the positioning reference signal in the second carrier group includes a condition for determining to transmit the positioning reference signal or a condition for not transmitting the positioning reference signal. Based on this condition, it is determined whether to transmit the positioning reference signal in the second carrier group.

[0141] Here, in an embodiment of the present disclosure, the condition for determining to transmit the positioning reference signal is A: The sum of the carrier bandwidths of the second carrier group is greater than or equal to a first threshold, and B: The ratio of the sum of the carrier bandwidths of the second carrier group to the sum of the carrier bandwidths of the first carrier group is greater than or equal to a second threshold, and C: The number of intervals between carriers in the second carrier group is less than or equal to a third threshold, and D: The frequency domain interval value between carriers in the second carrier group is less than or equal to a fourth threshold, and E: The second carrier group includes at least one of the carrier combinations for transmitting the positioning reference signal supported by the terminal.

[0142] Alternatively, in an embodiment of the present disclosure, the condition for not transmitting the positioning reference signal may be determined. For example, the condition for not transmitting the positioning reference signal is A: The sum of the carrier bandwidths of the second carrier group is less than a first threshold value, and B: The ratio of the sum of the carrier bandwidths of the second carrier group to the sum of the carrier bandwidths of the first carrier group is less than a second threshold value, and C: The number of intervals between carriers in the second carrier group is greater than a third threshold value, and D: The frequency domain interval value between carriers in the second carrier group is greater than a fourth threshold value, and E: The second carrier group may include at least one of the following: there exists a carrier combination for transmitting a positioning reference signal that is not supported by the terminal.

[0143] In one embodiment, in response to determining that the condition for transmitting the positioning reference signal is satisfied, the positioning reference signal is transmitted in the second carrier group. For example, when the sum of the carrier bandwidths of the second carrier group is greater than or equal to the first threshold value, the positioning reference signal is transmitted in the second carrier group. Also for example, when the sum of the carrier bandwidths of the second carrier group is greater than or equal to the first threshold value and the number of intervals between carriers in the second carrier group is less than or equal to the third threshold value, the positioning reference signal is transmitted in the second carrier group.

[0144] Alternatively, in response to determining that the condition for not transmitting the positioning reference signal is not satisfied, the positioning reference signal is transmitted in the second carrier group. For example, when there exists a carrier combination for transmitting the positioning reference signal that is supported by the terminal in the second carrier group, the positioning reference signal is transmitted in the second carrier group. Also for example, when the frequency domain interval value between carriers in the second carrier group is less than or equal to the fourth threshold value and the sum of the carrier bandwidths of the second carrier group is greater than or equal to the first threshold value, the positioning reference signal is transmitted in the second carrier group.

[0145] In another embodiment, in response to determining that the condition for transmitting the positioning reference signal is not satisfied, transmission of the positioning reference signal in the second carrier group is stopped. For example, if there is a combination of carriers for transmitting a positioning reference signal that is not supported by the terminal in the second carrier group, transmission of the positioning reference signal in the second carrier group is stopped. Also, for example, if the frequency domain interval value between 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 in the second carrier group is stopped.

[0146] Alternatively, in response to determining that the condition for transmitting the positioning reference signal is not satisfied, transmission of the positioning reference signal in the second carrier group is stopped. For example, if the ratio of the sum of the carrier bandwidths of the second carrier group to the sum of the carrier bandwidths of the first carrier group is less than a second threshold, transmission of the positioning reference signal in the second carrier group is stopped. Also, for example, if the ratio of the sum of the carrier bandwidths of the second carrier group to the sum of the carrier bandwidths of the first carrier group is less than a second threshold and the frequency domain interval value between carriers in the second carrier group is greater than a fourth threshold, transmission of the positioning reference signal in the second carrier group is stopped. In the embodiments of the present disclosure, at least one of the first threshold, the second threshold, the third threshold, and the fourth threshold for determining whether to transmit the positioning reference signal in the second carrier group can be determined by one of the following methods 1 to 3. In method 1, instruction information transmitted from a core network device such as an LMF is received and determined based on the received instruction information transmitted from a core network device such as an LMF. The corresponding threshold can be indicated in the instruction information transmitted from a core network device such as an LMF. In method 2, capability information reported from the terminal is received and determined based on the received capability information. The corresponding threshold can be indicated in the capability information. In Method 3, it is determined based on the default value of the threshold defined by the protocol.

[0147] Note that the positioning reference signal according to each of the above embodiments of the present disclosure may be a downlink positioning reference signal or an uplink positioning reference signal.

[0148] In one embodiment, the positioning reference signal includes a downlink positioning reference signal. The downlink positioning reference signal includes PRS or other downlink positioning reference signals, for example, downlink positioning reference signals that may be newly introduced later.

[0149] FIG. 8 is a flowchart of a positioning reference signal transmission method shown by an exemplary embodiment. The positioning reference signal transmission method may be implemented alone or in combination with other embodiments of the present disclosure. As shown in FIG. 8, the positioning reference signal transmission method is applied to a radio access network device and includes the following steps.

[0150] In step S71, a downlink positioning reference signal is transmitted on each carrier of the second carrier group.

[0151] In step S72, the measurement result of the downlink positioning reference signal reported from the terminal and the second carrier group information are obtained. The second carrier group information includes a carrier group identifier or a carrier identifier of each carrier included in the second carrier group.

[0152] In another embodiment, the positioning reference signal includes an uplink positioning reference signal. The uplink positioning reference signal includes SRS or other uplink positioning reference signals, for example, uplink positioning reference signals that may be newly introduced later.

[0153] FIG. 9 is a flowchart of a positioning reference signal transmission method shown by an exemplary embodiment. The positioning reference signal transmission method may be implemented alone or in conjunction with other embodiments of the present disclosure. As shown in FIG. 9, the positioning reference signal transmission method is applied to a radio access network device and includes the following steps.

[0154] In step S81, uplink positioning reference signals are received on each carrier of a second carrier group.

[0155] In step S82, measurements are performed on the uplink positioning reference signals received on each carrier of the second carrier group, and measurement results and second carrier group information are reported. The second carrier group information includes a carrier group identifier or carrier identifiers of each carrier included in the second carrier group.

[0156] Here, in an embodiment of the present disclosure, the TRP can perform measurements on the uplink positioning reference signals received on each carrier of the second carrier group and report the measurement results and the second carrier group information.

[0157] Furthermore, in an embodiment of the present disclosure, the radio access network device, that is, the TRP, can receive carrier combination information that is spontaneously selected and supported by the terminal. Here, the carrier combination information includes a carrier combination identifier or carrier identifiers of each carrier included in the carrier combination.

[0158] FIG. 10 is a flowchart of a positioning reference signal transmission method shown by an exemplary embodiment. The positioning reference signal transmission method may be implemented alone or in conjunction with other embodiments of the present disclosure. As shown in FIG. 10, the positioning reference signal transmission method is applied to a radio access network device and includes the following steps.

[0159] In step S91, receive at least one carrier combination information transmitted from the terminal.

[0160] Here, the carrier combination information is a carrier group for transmitting a positioning reference signal supported by the terminal, and includes a carrier combination identifier or a carrier identifier of each carrier included in the carrier combination.

[0161] In an embodiment of the present disclosure, the radio access network device determines a carrier combination supported by the terminal based on the carrier combination information transmitted from the terminal, and then can transmit a positioning reference signal based on the carrier combination supported by the terminal.

[0162] In an embodiment of the present disclosure, the radio access network device transmits the priority information of the positioning reference signal to the terminal, so that when transmitting the positioning reference signal on each carrier subjected to carrier aggregation, the measurement of the positioning reference signal and the reporting of the measurement result can be performed based on the transmission priority, and the positioning accuracy can be improved.

[0163] In one embodiment, the positioning reference signal transmission method is applied to a core network device.

[0164] FIG. 11 is a flowchart of a positioning reference signal transmission method shown by an exemplary embodiment. The positioning reference signal transmission method may be implemented alone or in combination with other embodiments of the present disclosure. As shown in FIG. 7, the positioning reference signal transmission method is applied to a core network device such as an LMF and includes the following steps.

[0165] In step S101, transmit first information for instructing a first carrier group for transmitting a positioning reference signal to the terminal, where the first carrier group includes at least two carriers.

[0166] In one embodiment, a terminal or a radio access network device can report a measurement result when transmitting a positioning reference signal based on a second carrier group determined from a first carrier group. A core network device such as an LMF obtains a measurement result when transmitting a positioning reference signal by the second carrier group, and obtains a carrier group identifier of the second carrier group or a carrier identifier of each carrier in the second carrier group.

[0167] Here, the priority of each carrier in the second carrier group for transmitting a positioning reference signal is higher than the priority for transmitting other channels / signals.

[0168] Furthermore, in an embodiment of the present disclosure, a core network device such as an LMF can receive carrier combination information supported by a terminal that is spontaneously selected by the terminal. Here, the carrier combination information includes a carrier combination identifier or a carrier identifier of each carrier included in the carrier combination.

[0169] In an embodiment of the present disclosure, a core network device such as an LMF receives at least one carrier combination information transmitted from a terminal. Here, the carrier combination information is a carrier group for transmitting a positioning reference signal supported by the terminal, and includes a carrier combination identifier or a carrier identifier of each carrier included in the carrier combination.

[0170] In an embodiment of the present disclosure, a core network device such as an LMF determines a carrier combination supported by a terminal based on the carrier combination information transmitted from the terminal, and then can transmit a positioning reference signal based on the carrier combination supported by the terminal.

[0171] In one embodiment, the positioning reference signal includes a downlink positioning reference signal and / or an uplink positioning reference signal.

[0172] Here, the downlink positioning reference signal includes a PRS or other downlink positioning reference signal, for example, a downlink positioning reference signal that may be newly introduced later.

[0173] The uplink positioning reference signal includes an SRS or other uplink positioning reference signal, for example, an uplink positioning reference signal that may be newly introduced later.

[0174] In an embodiment of the present disclosure, a core network device such as an LMF transmits first information indicating a first carrier group to a terminal, thereby realizing the transmission of a positioning reference signal in a carrier aggregation manner and improving positioning accuracy.

[0175] Note that in the embodiments of the present disclosure, the method by which a radio access network device such as a TRP and / or a core network device such as an LMF performs positioning reference signal transmission is similar to the method by which a terminal performs positioning reference signal transmission. For details not described about the method by which a radio access network device such as a TRP and / or a core network device such as an LMF performs positioning reference signal transmission, refer to the method by which a terminal performs positioning reference signal transmission.

[0176] Note that the positioning reference signal transmission method provided by the embodiments of the present disclosure is applicable to the process in which a terminal, a radio access network device such as a TRP, and a core network device such as an LMF interact to realize the transmission of a positioning reference signal. In the process in which a terminal, a radio access network device such as a TRP, and a core network device such as an LMF interact to realize the transmission of a positioning reference signal, the terminal, the radio access network device such as a TRP, and the core network device such as an LMF have the functions of the above embodiments.

[0177] It should be understood by those skilled in the art that the various embodiments / examples related to the above of the embodiments of the present disclosure may be used in combination with the foregoing embodiments or independently. Whether used alone or in combination with the foregoing embodiments, their implementation principles are similar. In the embodiments of the present disclosure, some embodiments are described as embodiments that are used together. Of course, those skilled in the art will understand that such examples do not limit the embodiments of the present disclosure.

[0178] Based on the same concept, the embodiments of the present disclosure further provide a positioning reference signal transmission device.

[0179] It should be recognized that the positioning reference signal transmission device provided by the embodiments of the present disclosure includes corresponding hardware structures and / or software modules for executing respective functions in order to implement the above functions. In relation to the various examples of units and algorithm steps disclosed in the embodiments of the present disclosure, the embodiments of the present disclosure can be implemented by hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or by computer software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods for each specific application to implement the described functions, but this implementation is not considered to exceed the scope of the technical perspective of the embodiments of the present disclosure.

[0180] FIG. 12 is a block diagram of a positioning reference signal transmission device shown by an exemplary embodiment. Referring to FIG. 12, the positioning reference signal transmission device 100 is applied to a terminal and includes an acquisition unit 101.

[0181] The acquisition unit 101 is configured to acquire first information for indicating a first carrier group for transmitting a positioning reference signal, and the first carrier group includes at least two carriers.

[0182] In one embodiment, the acquisition unit 101 is further configured to receive second information for indicating the priority of the transmission of the positioning reference signal by each carrier among at least two carriers with respect to the transmission of other channels / signals.

[0183] In one embodiment, the priority of the transmission of the positioning reference signal on each of at least two carriers is the same.

[0184] In one embodiment, the priorities of the transmission of the positioning reference signal on different carriers among at least two carriers are different.

[0185] In one embodiment, the positioning reference signal transmission device 100 further includes a processing unit 102, and the processing unit 102 is configured to determine a second carrier group from a first carrier group, and the priority of each carrier in the second carrier group for transmitting the positioning reference signal is higher than the priority of transmitting other channels / signals.

[0186] In one embodiment, the positioning reference signal transmission device 100 further includes a processing unit 102, and in response to determining that the condition for transmitting the positioning reference signal is satisfied, the processing unit 102 transmits the positioning reference signal in the second carrier group.

[0187] 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, and the transmission unit 103 is configured to perform measurements on the downlink positioning reference signal and report the measurement results and the second carrier group information, and the second carrier group information includes a carrier group identifier or the carrier identifiers of each carrier included in the second carrier group.

[0188] 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, and the transmission unit 103 is configured to transmit the uplink positioning reference signal on each carrier of the second carrier group.

[0189] In one embodiment, the positioning reference signal transmission device 100 further includes a processing unit 102, and in response to determining that the condition for transmitting the positioning reference signal is not satisfied, the processing unit 102 stops transmitting the positioning reference signal in the second carrier group.

[0190] In one embodiment, the condition is that the sum of the carrier bandwidths of the second carrier group is equal to or greater than a first threshold value, that the ratio of the sum of the carrier bandwidths of the second carrier group to the sum of the carrier bandwidths of the first carrier group is equal to or greater than a second threshold value, that the number of intervals between carriers in the second carrier group is equal to or less than a third threshold value, that the frequency domain interval value between carriers in the second carrier group is equal to or less than a fourth threshold value, and that there is a carrier combination for transmitting the positioning reference signal supported by the terminal in the second carrier group, and includes at least one of them.

[0191] In one embodiment, the acquisition unit 101 is configured to acquire first information transmitted from a core network device.

[0192] In one embodiment, the acquisition unit 101 is configured to receive second information transmitted from a radio access network device.

[0193] In one embodiment, other channels / signals are It includes at least one of the SSB of the serving cell, the SSB of the adjacent cell, the PDCCH and / or PDSCH of the URLLC traffic, the PDCCH and / or PDSCH of other traffic different from the URLLC traffic, the DMRS, the CSI-RS, the PUCCH and / or PUSCH, and the PRACH.

[0194] In one embodiment, at least one of the first threshold, the second threshold, the third threshold, and the fourth threshold is determined by one of: determining based on the instruction information transmitted from the received core network device, determining based on the instruction information transmitted from the received radio access network device, and determining based on the threshold stored in the terminal.

[0195] In one embodiment, the positioning reference signal transmission device 100 further includes a transmission unit 103, and the transmission unit 103 is configured to transmit at least one carrier combination information for transmitting the positioning reference signal supported by the terminal to the core network device or the radio access network device, where the carrier combination information includes a carrier combination identifier or a carrier identifier of each carrier included in the carrier combination.

[0196] FIG. 13 is a block diagram of a positioning reference signal transmission device shown by an exemplary embodiment. Referring to FIG. 13, the positioning reference signal transmission device 200 is applied to a radio access network device and includes a transmission unit 201.

[0197] The transmission unit 201 is configured to transmit second information for instructing the priority of the transmission of the positioning reference signal by each carrier among at least two carriers in the first carrier group with respect to the transmission of other channels / signals to the terminal.

[0198] In one embodiment, the priorities of the transmissions on each of at least two carriers of the positioning reference signal are the same.

[0199] In one embodiment, the priorities of transmission on different carriers among at least two carriers of the positioning reference signal are different.

[0200] In one embodiment, the transmission unit 201 is further configured to determine a second carrier group from a first carrier group, and the priority of each carrier in the second carrier group for transmitting the positioning reference signal is higher than the priority for transmitting other channels / signals.

[0201] In one embodiment, the transmission unit 201 is further configured to transmit the positioning reference signal in the second carrier group in response to determining that the condition for transmitting the positioning reference signal is satisfied.

[0202] In one embodiment, the positioning reference signal includes a downlink positioning reference signal, and the transmission 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 apparatus 200 further includes a reception unit 202, and the reception unit 202 is configured to obtain the measurement result of the downlink positioning reference signal reported from the terminal and the second carrier group information, and the second carrier group information includes a carrier group identifier or the carrier identifiers of each carrier included in the second carrier group.

[0203] In one embodiment, the positioning reference signal includes an uplink positioning reference signal, the positioning reference signal transmission apparatus 200 further includes a reception unit 202, and the reception unit 202 is configured to receive the uplink positioning reference signal on each carrier of the second carrier group. The transmission unit 201 is configured to perform measurements on the uplink positioning reference signal received on each carrier of the second carrier group and report the measurement result and the second carrier group information, and the second carrier group information includes a carrier group identifier or the carrier identifiers of each carrier included in the second carrier group.

[0204] In one embodiment, in response to determining that the condition for transmitting the positioning reference signal is not satisfied, the transmitting unit 201 stops transmitting the positioning reference signal in the second carrier group.

[0205] In one embodiment, the condition includes at least one of: the sum of the carrier bandwidths of the second carrier group is greater than or equal to a first threshold; the ratio of the sum of the carrier bandwidths of the second carrier group to 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 value between carriers in the second carrier group is less than or equal to a fourth threshold; and there exists a carrier combination for transmitting the positioning reference signal that is supported by the terminal in the second carrier group.

[0206] In one embodiment, the other channels / signals include at least one of: the SSB of the serving cell, the SSB of the adjacent cell, the PDCCH and / or PDSCH of the URLLC traffic, the PDCCH and / or PDSCH of other traffic different from the URLLC traffic, the DMRS, the CSI-RS, the PUCCH and / or PUSCH, and the PRACH.

[0207] In one embodiment, at least one of the first threshold, the second threshold, the third threshold, and the fourth threshold is determined by one of: based on the instruction information transmitted from the received core network device; based on the received terminal capability information; and based on the default value of the threshold defined by the protocol.

[0208] In one embodiment, the positioning reference signal transmission device 200 further includes a receiving unit 202, and the receiving unit 202 is configured to receive at least one carrier combination information transmitted from a terminal. Here, the carrier combination information is a carrier group for transmitting a positioning reference signal supported by the terminal, and includes a carrier combination identifier or a carrier identifier of each carrier included in the carrier combination.

[0209] FIG. 14 is a block diagram of a positioning reference signal transmission device shown by an exemplary embodiment. Referring to FIG. 14, the positioning reference signal transmission device 300 is applied to a core network device and includes a transmission unit 301.

[0210] The transmission unit 301 is configured to transmit first information for instructing a first carrier group for transmitting a positioning reference signal to the terminal, and the first carrier group includes at least two carriers.

[0211] In one embodiment, the positioning reference signal transmission device 300 further includes a receiving unit 302, and the receiving unit 302 is configured to obtain a measurement result when transmitting a positioning reference signal by a second carrier group, and obtain a carrier group identifier of the second carrier group or a carrier identifier of each carrier in the second carrier group.

[0212] In one embodiment, the priority of each carrier in the second carrier group for transmitting a positioning reference signal is higher than the priority of transmitting other channels / signals.

[0213] In one embodiment, the positioning reference signal transmission device 300 further includes a receiving unit 302, and the receiving unit 302 is configured to receive at least one carrier combination information transmitted from the terminal. Here, the carrier combination information is a carrier group for transmitting the positioning reference signal supported by the terminal, and includes a carrier combination identifier or a carrier identifier of each carrier included in the carrier combination.

[0214] In one embodiment, the positioning reference signal includes a downlink positioning reference signal and / or an uplink positioning reference signal.

[0215] Regarding the device of the above embodiment, the specific manner in which each module executes operations has already been described in detail in the embodiments related to the method, and thus will not be described in detail here.

[0216] FIG. 15 is a block diagram of a device 400 for transmitting a positioning reference signal shown by an exemplary embodiment. The device 400 may be provided as a terminal. For example, the device 400 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, or the like.

[0217] Referring to FIG. 15, the device 400 may include a processing component 402, a memory 404, a power component 406, a multimedia component 408, an audio component 410, an input / output (I / O) interface 412, a sensor component 414, and a communication component 416, one or more components.

[0218] The processing component 402 generally controls the overall operation of the device 400, such as operations related to display, phone calls, data communication, camera operations, and recording operations. The processing component 402 can include one or more processors 420 for executing instructions to complete all or some of the steps of the above methods. Note that the processing component 402 can include one or more modules to facilitate interaction with other components. For example, the processing component 402 can include a multimedia module to facilitate the interaction between the multimedia component 408 and the processing component 402.

[0219] The memory 404 is configured to store various types of data to support the operation of the device 400. Examples of these data include instructions for any application program or method for operating the device 400, contact data, phone book data, messages, images, videos, etc. The memory 404 may 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 memory, flash memory, magnetic disk, or optical disk.

[0220] The power component 406 provides power to various components of the device 400. The power component 406 can include a power management system, one or more power sources, and other components related to the generation, management, and distribution of power for the device 400.

[0221] The multimedia component 408 includes a screen that provides one output interface between the device 400 and the user. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). When the screen includes a touch panel, the screen can be implemented as a touch screen 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 sensor can not only sense the boundary of a touch or swipe operation, but also detect the duration and pressure associated with the touch or swipe operation. In some embodiments, the multimedia component 408 includes one front camera and / or rear camera. When the device 400 is in an operation mode such as a shooting mode or a video mode, the front camera and / or rear camera can receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system, or may have a focal length and an optical zoom capability.

[0222] The audio component 410 is configured to output and / or input audio signals. For example, the audio component 410 includes a microphone (MIC) configured to receive external audio signals when the device 400 is in an operation mode such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may be further stored in the memory 404, or may be transmitted via the communication component 416. In some embodiments, the audio component 410 further includes a speaker for outputting an audio signal.

[0223] The I / O interface 412 provides an interface between the processing component 402 and the peripheral interface module, and the peripheral interface module may be a keyboard, click wheel, buttons, etc. These buttons can include, but are not limited to, a home button, volume buttons, start button, and lock button.

[0224] The sensor component 414 includes one or more sensors to provide various forms of state evaluation for the device 400. For example, the sensor component 414 can detect the on / off state of the device 400 and the relative positioning of components. For example, the components may be the display and keypad of the device 400, and the sensor component 414 can further detect changes in the position of the device 400 or one component of the device 400, the presence or absence of contact between the user and the device 400, the orientation and position of the device 400 or acceleration / deceleration, and temperature changes of the device 400. The sensor component 414 can also include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor component 414 can further include an optical sensor such as a CMOS or CCD image sensor used in imaging applications. In some embodiments, the sensor component 414 can further include an acceleration sensor, gyro sensor, magnetic sensor, pressure sensor, or temperature sensor.

[0225] The communication component 416 is configured to facilitate wired or wireless communication between the device 400 and other devices. The device 400 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 416 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 416 further 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 Wide Band (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0226] In an exemplary embodiment, the device 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 execute the above method.

[0227] In an exemplary embodiment, a non-transitory computer-readable storage medium containing instructions, such as the memory 404 containing instructions, is further provided, and the above instructions may be executed by the processor 420 of the device 400 to complete the above method. For example, the non-transitory computer-readable storage medium may be a ROM, Random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device.

[0228] FIG. 16 is a block diagram of an apparatus 500 for transmitting a positioning reference signal shown by an exemplary embodiment. For example, the apparatus 500 may be provided as a network device. Referring to FIG. 16, the apparatus 500 includes a processing component 522 including one or more processors and memory resources for storing instructions, such as application programs, executed by the processing component 522, represented by a memory 532. The application programs stored in the memory 532 may include one or more modules each corresponding to a set of instructions. Further, the processing component 522 is configured to execute instructions so as to execute the above method.

[0229] The apparatus 500 may further include a power component 526 configured to perform power management of the apparatus 500, a wired or wireless network interface 550 configured to connect the apparatus 500 to a network, and an input / output (I / O) interface 558. The apparatus 500 can operate an operating system stored in the memory 532 such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.

[0230] 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 so as to execute the above method.

[0231] In an exemplary embodiment, a non-transitory computer-readable storage medium containing instructions, such as memory 532 containing instructions, is further provided, and the instructions may be executed by processing component 522 of apparatus 500 to complete the above method. For example, the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, or an optical data storage device.

[0232] Furthermore, it can be understood that "a plurality" in the present disclosure means two or more, and other numeral classifiers are similar to this. "And / or" describes the relationship of related objects and indicates that three relationships are possible. For example, the description of A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " usually indicates that the related objects before and after are in the relationship of "or". The singular forms "a", "the", and "said" are also intended to include the plural form unless the context clearly indicates otherwise.

[0233] Furthermore, it can be understood that terms such as "first", "second", etc. describe various information, but this information should not be limited to these terms. These terms are only used to distinguish the same type of information and do not represent a specific order or importance. In fact, expressions such as "first" and "second" can be used completely interchangeably. For example, without departing from the scope of the present disclosure, the first information can be called the second information, and similarly, the second information can also be called the first information.

[0234] Furthermore, in the embodiments of the present disclosure, although the operations are described in a specific order in the drawings, it can be understood that these operations are executed in the shown specific order or serial order, or it is required that all operations be executed to obtain the desired result. In a specific environment, multitasking and parallel processing may be advantageous.

[0235] After considering the specification and practicing the invention disclosed in the specification, those skilled in the art can readily conceive of other embodiments of the present disclosure. This application is intended to cover any variations, uses, or appropriate changes of the present disclosure, and these variations, uses, or appropriate changes comply with the general principles of the present disclosure and include common general knowledge or conventional technical means in the art that are not disclosed in the present disclosure. The specification and examples are regarded as merely illustrative, and the true scope and spirit of the present disclosure are pointed out by the following claims.

[0236] It should be noted that the present disclosure is not limited to the exact structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A positioning reference signal transmission method, which is applied to a terminal, and includes: a step of obtaining first information for instructing a first carrier group that transmits a positioning reference signal, where the first carrier group includes at least two carriers; a step of transmitting at least one carrier combination information for transmitting a positioning reference signal supported by the terminal, where the carrier combination information includes an identifier of the carrier combination or carrier identifiers of each carrier included in the carrier combination; transmission priorities of each of the at least two carriers of the positioning reference signal are the same; A positioning reference signal transmission method, characterized by the above.

2. The method further includes: a step of receiving second information for instructing a transmission priority of the positioning reference signal by each of the at least two carriers with respect to transmission of other channels / signals. The positioning reference signal transmission method according to claim 1, characterized by the above.

3. The step of obtaining the first information includes: a step of obtaining the first information transmitted from a core network device. The positioning reference signal transmission method according to claim 1, characterized by the above.

4. The step of receiving the second information includes: a step of receiving the second information transmitted from a radio access network device. The positioning reference signal transmission method according to claim 2, characterized by the above.

5. The other channels / signals include at least one of: a synchronization broadcast signal block (SSB) of a serving cell, an SSB of an adjacent cell, a physical downlink control channel (PDCCH) and / or a physical downlink shared channel (PDSCH) of ultra-reliable and low-latency wireless communication (URLLC) traffic, a PDCCH and / or a PDSCH of other traffic different from URLLC traffic, a demodulation reference signal (DMRS), a channel state information reference signal (CSI-RS), a physical uplink control channel (PUCCH) and / or a physical uplink shared channel (PUSCH), and a physical random access channel (PRACH). The positioning reference signal transmission method according to claim 2, characterized by the above.

6. A positioning reference signal transmission method applied to a radio access network device, transmitting, to a terminal, second information for indicating a priority of transmission of a positioning reference signal by each carrier among at least two carriers in a first carrier group with respect to transmission of other channels / signals; receiving at least one carrier combination information transmitted from the terminal, where the carrier combination information is a carrier group for transmitting a positioning reference signal supported by the terminal, and includes an identifier of the carrier combination or carrier identifiers of each carrier included in the carrier combination; wherein the priority of transmission of the positioning reference signal by each of the at least two carriers is the same; A positioning reference signal transmission method characterized by the above.

7. The other channels / signals are at least one of a synchronization broadcast signal block (SSB) of a serving cell, an SSB of an adjacent cell, a physical downlink control channel (PDCCH) and / or a physical downlink shared channel (PDSCH) for ultra-reliable and low-latency wireless communication (URLLC) traffic, a PDCCH and / or a PDSCH for other traffic different from URLLC traffic, a demodulation reference signal (DMRS), a channel state information reference signal (CSI-RS), a physical uplink control channel (PUCCH) and / or a physical uplink shared channel (PUSCH), and a physical random access channel (PRACH). The positioning reference signal transmission method according to claim 6, characterized by the above.

8. A positioning reference signal transmission method applied to a core network device, transmitting, to a terminal, first information for indicating a first carrier group for transmitting a positioning reference signal, where the first carrier group includes at least two carriers; receiving at least one carrier combination information transmitted from the terminal, where the carrier combination information is a carrier group for transmitting a positioning reference signal supported by the terminal, and includes an identifier of the carrier combination or carrier identifiers of each carrier included in the carrier combination; The transmission priorities for each of the at least two carriers of the positioning reference signal are the same. A positioning reference signal transmission method characterized by this.

9. The method includes: a step of obtaining a measurement result when transmitting a positioning reference signal by a second carrier group; and a step of obtaining a carrier group identifier of the second carrier group or a carrier identifier of each carrier in the second carrier group. The positioning reference signal transmission method according to claim 8, characterized by this.

10. The transmission priority for each carrier in the second carrier group to transmit a positioning reference signal is higher than the transmission priority for other channels / signals. The positioning reference signal transmission method according to claim 9, characterized by this.

11. The positioning reference signal includes a downlink positioning reference signal and / or an uplink positioning reference signal. The positioning reference signal transmission method according to any one of claims 8 to 10, characterized by this.

12. A positioning reference signal transmission device, an acquisition unit configured to acquire first information for indicating a first carrier group for transmitting a positioning reference signal, where the first carrier group includes at least two carriers; a transmission unit configured to transmit at least one carrier combination information for transmitting a positioning reference signal supported by the positioning reference signal transmission device, where the carrier combination information includes an identifier of the carrier combination or a carrier identifier of each carrier included in the carrier combination. The transmission priorities for each of the at least two carriers of the positioning reference signal are the same. A positioning reference signal transmission device characterized by this.

13. The acquisition unit is further configured to receive second information for indicating the transmission priority of the positioning reference signal by each of the at least two carriers with respect to the transmission of other channels / signals. The positioning reference signal transmission device according to claim 12, characterized by this.

14. A positioning reference signal transmission device, A transmission unit configured to transmit to a terminal second information for indicating the priority of transmission of a positioning reference signal by each carrier among at least two carriers in a first carrier group with respect to transmission of other channels / signals. A receiving unit configured to receive at least one carrier combination information transmitted from the terminal, wherein the carrier combination information is a carrier group for transmitting a positioning reference signal supported by the terminal, and the receiving unit includes an identifier of the carrier combination or carrier identifiers of each carrier included in the carrier combination. The priority of transmission of the positioning reference signal by each of the at least two carriers is the same. A positioning reference signal transmission device, characterized in that.

15. A positioning reference signal transmission device, comprising: A transmission unit configured to transmit to a terminal first information for indicating a first carrier group for transmitting a positioning reference signal, the first carrier group including at least two carriers. A receiving unit configured to receive at least one carrier combination information transmitted from the terminal, wherein the carrier combination information is a carrier group for transmitting a positioning reference signal supported by the terminal, and the receiving unit includes an identifier of the carrier combination or carrier identifiers of each carrier included in the carrier combination. The priority of transmission of the positioning reference signal by each of the at least two carriers is the same. A positioning reference signal transmission device, characterized in that.

16. A positioning reference signal transmission device, comprising: A processor; A memory for storing instructions executable by the processor. The processor is configured to execute the method according to any one of claims 1 to 5, or execute the method according to any one of claims 6 to 7, or execute the method according to any one of claims 8 to 11. A positioning reference signal transmission device, characterized in that.

17. A storage medium storing instructions. When the instructions in the memory medium are executed by a processor, whether the method according to any one of claims 1 to 5 is realized, or whether the method according to any one of claims 6 to 7 is realized, or whether the method according to any one of claims 8 to 11 is realized, A memory medium, characterized in that.

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