WO2023206037A1 - Positioning reference signal transmitting method and apparatus, and positioning reference signal receiving method and apparatus - Google Patents

Abstract

The present disclosure relates to a positioning reference signal transmitting method and apparatus, and a positioning reference signal receiving method and apparatus. The positioning reference signal transmitting method comprises: receiving a first association relationship between first information and a timing advance (TA); determining the TA corresponding to the first information according to the first association relationship; and transmitting a positioning reference signal to a network device according to the determined TA. According to the present disclosure, after receiving the first association relationship, a terminal can determine the TA corresponding to the first information according to the first association relationship, and can further transmit the positioning reference signal according to the determined TA, thereby avoiding the problem of stopping transmitting the positioning reference signal after the TA is invalid. Therefore, after the TA is invalid, it is ensured that the TA can also be determined according to the first association relationship, and the positioning reference signal is transmitted according to the determined TA, thereby ensuring that the network device can position the terminal according to the received positioning reference signal.

Description

Positioning reference signal sending, positioning reference signal receiving method and device Technical field

The present disclosure relates to the field of communication technology, specifically, to a positioning reference signal transmitting method, a positioning reference signal receiving method, a bit reference signal transmitting device, a positioning reference signal receiving device, a communication device and a computer-readable storage medium.

Background technique

In 5G NR (New Radio, New Radio), a variety of positioning technologies are introduced to realize the positioning of terminals. Among them, in uplink positioning technology and uplink and downlink hybrid positioning technology, the terminal is required to send uplink positioning reference signals. Therefore, it is also Network equipment is required to configure the terminal to send uplink reference signals, such as the timing advance TA (Timing Advance, which can also be called timing advance) for sending uplink positioning reference signals.

Currently, it can support the positioning of terminals in the inactive state, that is, the terminal can send uplink reference signals when it is in the inactive state. It also stipulates that when the terminal performs cell reselection in the inactive state, the terminal needs to release the configuration of the uplink reference signal and the TA in the configuration will be invalid. This causes the terminal to stop sending the uplink reference signal when it performs cell reselection, resulting in During this period, the terminal cannot be positioned based on the uplink reference signal.

Contents of the invention

In view of this, embodiments of the present disclosure propose a positioning reference signal sending method, a positioning reference signal receiving method, a bit reference signal sending device, a positioning reference signal receiving device, a communication device and a computer-readable storage medium to solve the problems in related technologies. technical problem.

According to a first aspect of an embodiment of the present disclosure, a method for transmitting a positioning reference signal is proposed, which is executed by a terminal. The method includes: receiving a first association relationship between first information and timing advance TA; according to the first The association relationship determines the TA corresponding to the first information; and sends a positioning reference signal to the network device according to the determined TA.

According to a second aspect of the embodiment of the present disclosure, a positioning reference signal receiving method is proposed, which is executed by a network device. The method includes: sending a first association relationship between first information and timing advance TA to a terminal, said The first association relationship is used to instruct the terminal to determine the TA to be used when sending the positioning reference signal to the network device, wherein the TA is determined based on the first association relationship and the first information; the receiving terminal determines the TA based on the Positioning reference signal sent by TA.

According to a third aspect of the embodiment of the present disclosure, a positioning reference signal transmitting device is proposed, which device includes: a receiving module configured to receive a first association relationship between the first information and the timing advance TA; a processing module, The sending module is configured to determine the TA corresponding to the first information according to the first association relationship; the sending module is configured to send the positioning reference signal to the network device according to the determined TA.

According to a fourth aspect of the embodiment of the present disclosure, a positioning reference signal receiving device is proposed. The device includes: a sending module configured to send the first association relationship between the first information and the timing advance TA to the terminal, so The first association relationship is used to instruct the terminal to determine the TA to be used when sending the positioning reference signal to the network device, and the TA is determined based on the first association relationship and the first information; the receiving module is configured to receive the The terminal is based on the positioning reference signal sent by the TA.

According to a fifth aspect of the embodiment of the present disclosure, a communication device is proposed, including: a processor; and a memory for storing a computer program; wherein when the computer program is executed by the processor, the above positioning reference signal sending method is implemented.

According to a sixth aspect of the embodiment of the present disclosure, a communication device is proposed, including: a processor; a memory for storing a computer program; wherein when the computer program is executed by the processor, the above positioning reference signal receiving method is implemented.

According to a seventh aspect of the embodiment of the present disclosure, a computer-readable storage medium is proposed for storing a computer program. When the computer program is executed by a processor, the steps in the above positioning reference signal sending method are implemented.

According to an eighth aspect of the embodiment of the present disclosure, a computer-readable storage medium is proposed for storing a computer program. When the computer program is executed by a processor, the steps in the above positioning reference signal receiving method are implemented.

According to embodiments of the present disclosure, the network device may determine the first association relationship between the TA and the first information, and send the first association relationship to the terminal. After receiving the first association relationship, when the terminal obtains the first information, it can determine the TA corresponding to the first information according to the first association relationship, and then can send the positioning reference signal according to the determined TA, thereby avoiding invalid TA. After that, stop sending positioning reference signals.

After the TA becomes invalid, the terminal may determine the TA based on the first association relationship and the first information, and send a positioning reference signal to the network device based on the determined TA. This ensures that the terminal can determine the TA based on the first association relationship even after the TA is invalid, and sends a positioning reference signal based on the determined TA, ensuring that the network device can position the terminal based on the received positioning reference signal.

Description of the drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting any creative effort.

FIG. 1 is a schematic flow chart of a method for transmitting a positioning reference signal according to an embodiment of the present disclosure.

FIG. 2 is a schematic flowchart of another positioning reference signal transmitting method according to an embodiment of the present disclosure.

Figure 3 is a schematic flow chart of yet another positioning reference signal sending method according to an embodiment of the present disclosure.

Figure 4 is a schematic flow chart of yet another positioning reference signal sending method according to an embodiment of the present disclosure.

Figure 5 is a schematic flow chart of yet another positioning reference signal sending method according to an embodiment of the present disclosure.

Figure 6 is a schematic flow chart of a positioning reference signal receiving method according to an embodiment of the present disclosure.

FIG. 7 is a schematic flow chart of another positioning reference signal receiving method according to an embodiment of the present disclosure.

FIG. 8 is a schematic block diagram of a positioning reference signal transmitting device according to an embodiment of the present disclosure.

Figure 9 is a schematic block diagram of a positioning reference signal receiving device according to an embodiment of the present disclosure.

FIG. 10 is a schematic block diagram of a device for indicating an association relationship according to an embodiment of the present disclosure.

Figure 11 is a schematic block diagram of a device for positioning reference signal transmission according to an embodiment of the present disclosure.

Detailed ways

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this disclosure.

The terminology used in the embodiments of the present disclosure is for the purpose of describing specific embodiments only and is not intended to limit the embodiments of the present disclosure. As used in the embodiments of the present disclosure and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

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

For the purpose of simplicity and ease of understanding, the terms used in this article are "greater than" or "less than", "higher than" or "lower than" when characterizing size relationships. But for those skilled in the art, it can be understood that: the term "greater than" also covers the meaning of "greater than or equal to", and "less than" also covers the meaning of "less than or equal to"; the term "higher than" covers the meaning of "higher than or equal to". "The meaning of "less than" also covers the meaning of "less than or equal to".

FIG. 1 is a schematic flow chart of a method for transmitting a positioning reference signal according to an embodiment of the present disclosure. The positioning reference signal sending method shown in this embodiment can be executed by a terminal, which includes but is not limited to communication devices such as mobile phones, tablet computers, wearable devices, sensors, and Internet of Things devices. The terminal can communicate with network equipment, which includes but is not limited to network equipment in 4G, 5G, 6G and other communication systems, such as base stations, core networks, etc.

As shown in Figure 1, the positioning reference signal sending method may include the following steps:

In step S101, receive the first association between the first information and the timing advance TA (Timing Advance);

In step S102, determine the TA corresponding to the first information according to the first association relationship;

In step S103, a positioning reference signal is sent to the network device according to the determined TA.

In one embodiment, when the terminal is in a non-connected state, such as an idle state or an inactive state, the terminal may send a positioning reference signal (also called an uplink positioning reference signal) to the network device, such as a channel sounding reference signal. Signal (Sounding Reference Signal, SRS).

In order to enable the terminal to send positioning reference signals, the network device can configure configuration information for the terminal to send positioning reference signals. The configuration information can carry TA, time domain resources, frequency domain resources, etc. For example, the network device sends a Radio Resource Control (RRC) release message to the terminal to make the terminal enter the unconnected state from the connected state. The RRC release message can carry the configuration information, so that the terminal can be in the unconnected state. The state sends positioning reference signals to network devices based on configuration information. The network device can locate the non-connected terminal based on the received positioning reference signal.

However, when a non-connected terminal performs cell reselection, the TA configured by the network device for the terminal to send uplink reference signals in the non-connected state will be invalid (for example, because the terminal releases part of the configuration information for sending positioning reference signals). caused). The terminal stops sending the positioning reference signal because it does not have the TA needed to send the positioning reference signal, which makes it impossible to position the terminal based on the positioning reference signal.

According to embodiments of the present disclosure, the network device may determine the first association relationship between the TA and the first information, and send the first association relationship to the terminal. After receiving the first association relationship, when the terminal obtains the first information, it can determine the TA corresponding to the first information according to the first association relationship, and then can send the positioning reference signal according to the determined TA, thereby avoiding duplication in the cell. The problem of stopping sending positioning reference signals when TA is invalid after selection.

It should be noted that after receiving the first association relationship and before performing cell reselection, the terminal can still send the positioning reference signal according to the TA in the configuration information. After the TA is invalid, the TA can be determined according to the first association relationship and the first information, and a positioning reference signal is sent to the network device according to the determined TA.

This ensures that the terminal can determine the TA based on the first association relationship after the TA is invalid, and send a positioning reference signal based on the determined TA, thereby ensuring that the network device can position the terminal based on the received positioning reference signal.

In one embodiment, the first association relationship is determined according to predefined rules or according to network device instructions.

The first association relationship can be indicated by the network device, for example, carried in an RRC message (such as an RRC release message) and sent to the terminal, or can also be carried in a multicast message, broadcast message (such as a system message, paging message) and other messages and sent to the terminal. terminal. This disclosure does not limit the method of sending the first association relationship.

In addition, in addition to being indicated by the network device to the terminal, the first association relationship may also be determined by the terminal in other ways, such as obtaining it from other terminals, or determining it according to predefined rules (such as protocol agreement).

In one embodiment, the first information includes at least one of the following:

Information related to the first signal;

Information about the community.

In one embodiment, the first information includes information that the terminal can obtain in a non-connected state.

For example, when the first information includes information related to the first signal, the first signal includes signals that the terminal can obtain in a non-connected state, including but not limited to reference signals, system messages, and paging messages sent by network equipment, where reference Signals include Positioning Reference Signal (PRS), Channel State Information Reference Signal (CSI-RS), and system messages include but are not limited to Synchronization Signal Block (SSB).

After cell reselection, the terminal may receive the first signal, determine the relevant information of the first signal, and further determine the TA corresponding to the relevant information of the first signal according to the first association relationship.

For example, when the first information includes the relevant information of the cell, the terminal can perform cell reselection in the non-connected state. After the TA is invalid, the terminal can further determine the relevant information of the reselected cell, and then determine the reselected cell according to the first association relationship. The relevant information of the cell corresponds to the TA.

It should be noted that the first association relationship may include an association relationship between the relevant information of the first signal and the TA. In this case, the TA may be determined based on the relevant information of the first signal and the first association relationship;

The first association relationship may include an association relationship between the relevant information of the cell and the TA. In this case, the TA may be determined based on the relevant information of the cell and the first association relationship;

The first association relationship may include the association relationship between the relevant information of the first signal and the relevant information of the cell and the TA. In this case, it can be determined based on the relevant information of the first signal, the relevant information of the cell and the first association relationship. TA.

In order to facilitate understanding, the embodiments of the present disclosure mainly provide examples in two cases where the first association relationship includes the association relationship between the relevant information of the cell and the TA, or the first association relationship includes the association relationship between the relevant information of the cell and the TA. sexual description.

In one embodiment, the relevant information of the first signal includes at least one of the following:

The path loss determined based on the first signal;

The strength of the first signal, such as reference signal receiving signal power RSRP (Reference Signal Receiving Power);

SINR (Signal to Interference plus Noise Ratio) of the first signal.

FIG. 2 is a schematic flowchart of another positioning reference signal transmitting method according to an embodiment of the present disclosure. As shown in Figure 2, determining the TA corresponding to the first information according to the first association relationship includes:

In step S201, receive the first signal;

In step S202, determine the relevant information of the first signal;

In step S203, the TA corresponding to the relevant information of the first signal is determined according to the first association relationship; wherein the first information includes the relevant information of the first signal.

In one embodiment, the first signal includes, but is not limited to, reference signals sent by the network device, system messages, paging messages and other signals that the terminal can obtain in the non-connected state.

As an example, the first signal includes a reference signal sent by the network device.

For example, the first association relationship is the association relationship between the path loss of the reference signal and the TA. After the TA is invalid, the terminal can receive the reference signal sent by the network device, determine the path loss of the reference signal, and then determine the reference signal according to the first association relationship. The path loss corresponds to the TA.

For example, the first association relationship is the association relationship between the RSRP of the reference signal and the TA. After the TA becomes invalid, the terminal can receive the reference signal sent by the network device, determine the RSRP of the reference signal, and then determine the RSRP of the reference signal based on the first association relationship. Corresponding TA.

For example, the first association relationship is the association relationship between the SINR of the reference signal and the TA. After the TA is invalid, the terminal can receive the reference signal sent by the network device, determine the SINR of the reference signal, and then determine the SINR of the reference signal based on the first association relationship. Corresponding TA.

Figure 3 is a schematic flow chart of yet another positioning reference signal sending method according to an embodiment of the present disclosure. As shown in Figure 3, determining the TA corresponding to the first information according to the first association relationship includes:

In step S301, determine the relevant information of the current cell;

In step S302, the TA corresponding to the relevant information of the current cell is determined according to the first association relationship; wherein the first information includes the relevant information of the cell.

In one embodiment, the relevant information of the cell includes but is not limited to the cell identifier (Cell ID), the frequency point information of the cell, and other information about the cell that the terminal can obtain after the TA becomes invalid. Among them, the frequency point information of the cell may include the frequency point value, the ARFCN (Absolute Radio Frequency Channel Number, absolute radio frequency channel number) corresponding to the frequency point, etc.

For example, the relevant information of the cell includes the identity of the cell.

For example, the first association relationship is the association relationship between the identity of the cell and the TA. After the terminal performs cell reselection, the TA is invalid, and then the identity of the reselected cell, that is, the identity of the current cell of the terminal, can be determined, and then the terminal can determine the identity of the current cell according to the cell reselection. An association relationship determines the TA corresponding to the identity of the current cell.

In one embodiment, the first association relationship includes at least one of the following: a discontinuous association relationship between the first information and TA; and a continuous association relationship between the first information and TA.

In one embodiment, the first association relationship between the first information and the TA may be discontinuous.

For example, when the first information includes the identity of the cell, the first association relationship may be the correspondence relationship between the identities of multiple groups of cells and TA, such as {TA1, Cell ID1}, {TA2, Cell ID2}, based on which it can be determined whether When the identity of the current cell is Cell ID1, the corresponding TA is TA1. When the identity of the current cell is Cell ID2, the corresponding TA is TA2.

For example, when the first information includes the RSRP of the reference signal, the first association relationship may be a correspondence relationship between multiple sets of RSRPs of the first signal and TA, such as {TA1, RSRP1}, {TA2, RSRP2}, based on which the determination can be made. When the RSPR of the received reference signal is RSRP1, the corresponding TA is TA1, and when the RSPR of the received reference signal is RSRP2, the corresponding TA is TA2.

Wherein, when the first information includes relevant information of the first signal, the relevant information of the first signal can be quantized into 3847 values, corresponding to 3847 TAs one-to-one.

In this case, the first association relationship may be stored in a table, and the table may include the first information and the TA corresponding to the first information. For example, there may be a one-to-one correspondence between the first information and the TA.

In one embodiment, the first association relationship between the first information and TA may be continuous,

For example, the first association relationship may be a function with the first information as the independent variable and TA as the dependent variable. For example, when the first information includes the RSRP of the reference signal, the first association relationship may be TA=f(RSRP). After receiving the reference signal, the terminal may substitute the RSRP of the reference signal into TA=f(RSRP), thereby obtaining Output the corresponding TA.

Figure 4 is a schematic flow chart of yet another positioning reference signal sending method according to an embodiment of the present disclosure. As shown in Figure 4, before sending the positioning reference signal to the network device according to the determined TA, the method further includes:

In step S401, determine the second correlation between the relevant information of the second signal and the TA adjustment value;

In step S402, determine the TA adjustment value corresponding to the obtained relevant information of the second signal according to the second correlation relationship;

In step S403, adjust the determined TA according to the TA adjustment value;

Wherein, sending the positioning reference signal to the network device according to the determined TA includes:

In step S404, a positioning reference signal is sent to the network device according to the adjusted TA.

In one embodiment, although the terminal can determine the TA corresponding to the relevant information of the current cell based on the first association relationship, since the cell has a certain coverage range, the farther the terminal is from the center of the cell, the larger the TA is. The closer the cell center is, the smaller the TA is generally. Therefore, there may be a certain error between the TA determined only based on the identity, frequency and other information of the current cell and the TA corresponding to the terminal's location in the current cell.

Therefore, after determining the TA corresponding to the relevant information of the current cell according to the first association relationship, the terminal can further obtain the second signal in the current cell, and determine the TA adjustment corresponding to the acquired relevant information of the second signal according to the second association relationship. value, and then adjust the determined TA according to the TA adjustment value. Finally, the positioning reference signal can be sent to the network device according to the adjusted TA.

Since the location of the terminal in the current cell is different, the related information of the second signal is also different, so the TA adjustment value corresponding to the obtained related information of the second signal is determined according to the second association relationship, and the TA adjustment value pair is determined Adjusting the TA is helpful to ensure that the adjusted TA is as close as possible (for example, equal) to the TA corresponding to the terminal's current cell location, so that the terminal can use the appropriate TA (that is, the adjusted TA) to send the positioning reference Signal.

In one embodiment, the second signal includes a signal that the terminal can acquire in a non-connected state. Including but not limited to reference signals, system messages, and paging messages sent by network equipment. The reference signals include positioning reference signals PRS and channel state information reference signals CSI-RS. System messages include but are not limited to synchronization information blocks SSB.

After the TA becomes invalid, the terminal may receive the second signal, determine the relevant information of the second signal, and then determine the TA adjustment value corresponding to the relevant information of the second signal according to the second association relationship.

In one embodiment, the relevant information of the second signal includes at least one of the following:

Path loss determined based on the second signal;

the strength of the second signal;

The signal-to-interference-to-noise ratio of the second signal.

In one embodiment, the second association relationship includes a discontinuous association relationship between the relevant information of the second signal and TA, and/or a continuous association relationship between the relevant information of the second signal and TA. .

In one embodiment, the second association relationship between the relevant information of the second signal and the TA may be continuous.

For example, the second correlation relationship may be a function with the relevant information of the second signal as the independent variable and the TA adjustment value ΔTA as the dependent variable. For example, when the relevant information of the second signal includes the RSRP of the reference signal, the second association relationship may be ΔTA=g(RSRP). After the terminal is reselected to the current cell, it may receive the reference signal in the current cell, and then transfer the reference signal to the current cell. The RSRP of the signal is substituted into ΔTA=g(RSRP) to obtain the corresponding ΔTA. Next, the TA determined based on the relevant information of the cell can be adjusted according to ΔTA to obtain the adjusted TA.

Among them, the general representation form of TA is an integer value. Therefore, for the TA adjustment value determined according to the second association relationship, if the TA adjustment value is an integer, it can be directly used for adjustment. If the TA adjustment value is not an integer, then it can be performed first. Rounding (such as rounding up or rounding down) is then used for adjustment.

In one embodiment, the second association relationship is determined according to predefined rules or according to network device instructions.

The second association relationship can be indicated by the network device, for example, carried in an RRC message (such as an RRC release message) and sent to the terminal, or can also be carried in a multicast message, broadcast message (such as a system message, paging message) and other messages and sent to the terminal. terminal. This disclosure does not limit the method of sending the second association relationship.

In addition, in addition to being indicated by the network device to the terminal, the second association relationship may also be determined by the terminal in other ways, such as obtaining it from other terminals, or determining it according to predefined rules (such as protocol agreement).

Figure 5 is a schematic flow chart of yet another positioning reference signal sending method according to an embodiment of the present disclosure. As shown in Figure 5, before sending the positioning reference signal to the network device according to the determined TA, the method further includes:

In step S501, determine the TA indicated by the network device;

In step S502, a positioning reference signal is sent to the network device according to the TA.

In one embodiment, after the terminal performs cell reselection, the network device may (for example, in the cell to which the terminal is reselected) reconfigure configuration information for sending positioning reference signals for the terminal, which may include TA.

Since the network device configures a TA for the terminal, generally under the condition that the terminal's situation (such as its location) is relatively understood, the TA indicated by the network device is more accurate than the TA determined by the terminal based on the first association relationship. Therefore, after receiving the TA indicated by the network device, the terminal can send a positioning reference signal according to the TA indicated by the network device. Further, the TA determined based on the first association relationship can be cleared.

Among them, the network device can send configuration information to the terminal during the terminal's random access process, such as carrying the configuration information in a Media Access Control Random Access Response (MAC RAR) and sending it to the terminal, or it can The configuration information is carried in an absolute timing advance command (an absolute timing advance command) MAC CE (Control Element) and sent to the terminal.

In both cases, the terminal can calculate N _TA to characterize TA according to the formula N _TA = _TA ·16·64/2 ^μ , where T _A is an integer value from 0 to 3846, and μ is an integer from 0 to 4 value, the μ value equals 0 corresponds to the case where the subcarrier spacing is 15KHz, the μ value equals 1 corresponds to the subcarrier spacing is 30KHz, the μ value equals 2 corresponds to the subcarrier spacing 60KHz, and the μ value equals 3 corresponds to the subcarrier spacing. In the case of 120KHz, a μ value equal to 4 corresponds to a subcarrier spacing of 240KHz.

In other cases, for example, after the terminal completes random access, the terminal can characterize TA by N _{TA_new} calculated according to the formula N _{TA_new} = N _{TA_old} + ( _TA -31)·16·64/2 ^μ , where, T _A is an integer value from 0 to 63, and N _{TA_old} is the TA that the network device configured for the terminal last time.

Figure 6 is a schematic flow chart of a positioning reference signal receiving method according to an embodiment of the present disclosure. The positioning reference signal receiving method shown in this embodiment can be executed by a network device that can communicate with a terminal. The network device includes but is not limited to base stations in communication systems such as 4G base stations, 5G base stations, and 6G base stations. The terminals include but are not limited to mobile phones, tablets, wearable devices, sensors, Internet of Things devices and other communication devices.

As shown in Figure 6, the positioning reference signal receiving method may include the following steps:

In step S601, a first association relationship between the first information and the timing advance TA is sent to the terminal, where the first association relationship is used to instruct the terminal to determine the TA to be used when sending the positioning reference signal to the network device, where , the TA is determined based on the first association relationship and the first information;

In step S602, the positioning reference signal sent by the terminal according to the TA is received.

In one embodiment, when the terminal is in a non-connected state, such as an idle state or an inactive state, the terminal may send a positioning reference signal (also called an uplink positioning reference signal) to the network device, such as a channel sounding reference signal. Signal (Sounding Reference Signal, SRS).

In order to enable the terminal to send positioning reference signals, the network device can configure configuration information for the terminal to send positioning reference signals. The configuration information can carry TA, time domain resources, frequency domain resources, etc. For example, the network device sends a Radio Resource Control (RRC) release message to the terminal to make the terminal enter the unconnected state from the connected state. The RRC release message can carry the configuration information, so that the terminal can be in the unconnected state. The state sends positioning reference signals to network devices based on configuration information. The network device can locate the non-connected terminal based on the received positioning reference signal.

However, when a non-connected terminal performs cell reselection, the TA configured by the network device for the terminal to send uplink reference signals in the non-connected state will be invalid (for example, because the terminal releases part of the configuration information for sending positioning reference signals). (resulting), which causes the terminal to stop sending positioning reference signals because there is no TA required to send positioning reference signals before the network device reconfigures the TA for sending uplink reference signals to the terminal, resulting in the inability to position the terminal based on the positioning reference signals. .

According to an embodiment of the present disclosure, the network device may determine the first association relationship between the TA and the first information, send the first association relationship to the terminal, and instruct the terminal through the first association relationship to determine to send the positioning reference to the network device The TA is used when signaling, wherein the TA is determined based on the first association relationship and the first information. After receiving the first association relationship, when the terminal obtains the first information, it can determine the TA corresponding to the first information according to the first association relationship, and then can send the positioning reference signal according to the determined TA, thereby avoiding invalid TA. Finally, stop sending the positioning reference signal, so that the network device can receive the positioning reference signal sent by the terminal according to the TA.

It should be noted that after receiving the first association relationship and before performing cell reselection, the terminal can still send the positioning reference signal according to the TA in the configuration information. After the TA is invalid, the TA can be determined according to the first association relationship and the first information, and a positioning reference signal is sent to the network device according to the determined TA.

This ensures that the terminal can determine the TA based on the first association relationship after the TA is invalid, and sends a positioning reference signal based on the determined TA, ensuring that the network device can position the terminal based on the received positioning reference signal.

Among them, the network device can carry the first association relationship in an RRC message (such as an RRC release message) and send it to the terminal, or it can also carry it in a multicast message, a broadcast message (such as a system message, a paging message) and other messages and send it to the terminal. . This disclosure does not limit the method of sending the first association relationship.

In one embodiment, the first information includes at least one of the following: related information of the first signal; related information of the cell.

In one embodiment, the first information includes information that the terminal can obtain in a non-connected state.

For example, when the first information includes information related to the first signal, the first signal includes signals that the terminal can obtain in a non-connected state, including but not limited to reference signals, system messages, and paging messages sent by network equipment, where reference The signal includes the positioning reference signal PRS and the channel state information reference signal CSI-RS. The system message includes but is not limited to the synchronization information block SSB.

The terminal may receive the first signal after the TA is invalid, determine the relevant information of the first signal, and further determine the TA corresponding to the relevant information of the first signal according to the first association relationship.

For example, when the first information includes relevant information of the cell, the terminal can perform cell reselection in the non-connected state and the TA is invalid. Then the terminal can determine the relevant information of the reselected cell, and then determine the reselected cell according to the first association relationship. The TA corresponding to the relevant information of the cell.

It should be noted that the first association relationship may include an association relationship between the relevant information of the first signal and the TA. In this case, the TA may be determined based on the relevant information of the first signal and the first association relationship;

The first association relationship may include an association relationship between the relevant information of the cell and the TA. In this case, the TA may be determined based on the relevant information of the cell and the first association relationship;

The first association relationship may include the association relationship between the relevant information of the first signal and the relevant information of the cell and the TA. In this case, it can be determined based on the relevant information of the first signal, the relevant information of the cell and the first association relationship. TA.

In order to facilitate understanding, the embodiments of the present disclosure mainly provide examples in two cases where the first association relationship includes the association relationship between the relevant information of the cell and the TA, or the first association relationship includes the association relationship between the relevant information of the cell and the TA. sexual description.

In one embodiment, the relevant information of the first signal includes at least one of the following:

Path loss determined based on the first signal;

The strength of the first signal;

The signal-to-interference-to-noise ratio of the first signal.

In one embodiment, the first association relationship includes at least one of the following: a discontinuous association relationship between the first information and TA; and a continuous association relationship between the first information and TA.

In one embodiment, the first association relationship between the first information and the TA may be discontinuous.

For example, when the first information includes the identity of the cell, the first association relationship may be the correspondence relationship between the identities of multiple groups of cells and TA, such as {TA1, Cell ID1}, {TA2, Cell ID2}, based on which it can be determined whether When the identity of the current cell is Cell ID1, the corresponding TA is TA1. When the identity of the current cell is Cell ID2, the corresponding TA is TA2.

For example, when the first information includes the RSRP of the reference signal, the first association relationship may be a correspondence relationship between multiple sets of RSRPs of the first signal and TA, such as {TA1, RSRP1}, {TA2, RSRP2}, based on which the determination can be made. When the RSPR of the received reference signal is RSRP1, the corresponding TA is TA1, and when the RSPR of the received reference signal is RSRP2, the corresponding TA is TA2.

In this case, the first association relationship may be stored in a table, and the table may include the first information and the TA corresponding to the first information. For example, there may be a one-to-one correspondence between the first information and the TA.

In one embodiment, the first association relationship between the first information and TA may be continuous,

For example, the first association relationship may be a function with the first information as the independent variable and TA as the dependent variable. For example, when the first information includes the RSRP of the reference signal, the first association relationship may be TA=f(RSRP). After receiving the reference signal, the terminal may substitute the RSRP of the reference signal into TA=f(RSRP), thereby obtaining Output the corresponding TA.

FIG. 7 is a schematic flow chart of another positioning reference signal receiving method according to an embodiment of the present disclosure. As shown in Figure 7, the method includes:

In step S701, a second association relationship between the relevant information of the second signal and the TA adjustment value is sent to the terminal to instruct the terminal to determine the TA according to the relevant information of the cell and the first association relationship. In this case, the determined TA is adjusted according to the TA adjustment value.

In one embodiment, although the terminal can determine the TA corresponding to the relevant information of the current cell based on the first association relationship, since the cell has a certain coverage range, the farther the terminal is from the center of the cell, the larger the TA is. The closer the cell center is, the smaller the TA is generally. Therefore, there may be a certain error between the TA determined only based on the identity, frequency and other information of the current cell and the TA corresponding to the terminal's location in the current cell.

Therefore, when the first information includes relevant information of the cell, the network device may also send the second association relationship between the relevant information of the second signal and the TA adjustment value to the terminal. After the terminal determines the TA corresponding to the relevant information of the current cell according to the first association relationship, the terminal can further obtain the second signal in the current cell, and determine the TA adjustment value corresponding to the obtained relevant information of the second signal according to the second association relationship. Then the determined TA is adjusted according to the TA adjustment value, and finally the positioning reference signal can be sent to the network device according to the adjusted TA.

Since the location of the terminal in the current cell is different, the related information of the second signal is also different, so the TA adjustment value corresponding to the obtained related information of the second signal is determined according to the second association relationship, and the TA adjustment value pair is determined Adjusting the TA is helpful to ensure that the adjusted TA is as close as possible (for example, equal) to the TA corresponding to the terminal's current cell location, so that the terminal can use the appropriate TA (that is, the adjusted TA) to send the positioning reference Signal.

In one embodiment, the second signal includes a signal that the terminal can acquire in a non-connected state. Including but not limited to reference signals, system messages, and paging messages sent by network equipment. The reference signals include positioning reference signals PRS and channel state information reference signals CSI-RS. System messages include but are not limited to synchronization information blocks SSB.

After the TA becomes invalid, the terminal may receive the second signal, determine the relevant information of the second signal, and then determine the TA adjustment value corresponding to the relevant information of the second signal according to the second association relationship.

In one embodiment, the relevant information of the second signal includes at least one of the following:

Path loss determined based on the second signal;

The strength of the second signal;

The signal-to-interference-to-noise ratio of the second signal.

In one embodiment, the second association relationship between the relevant information of the second signal and the TA may be continuous.

For example, the second correlation relationship may be a function with the relevant information of the second signal as the independent variable and the TA adjustment value ΔTA as the dependent variable. For example, when the relevant information of the second signal includes the RSRP of the reference signal, the second association relationship may be ΔTA=g(RSRP). After the terminal is reselected to the current cell, it may receive the reference signal in the current cell, and then transfer the reference signal to the current cell. The RSRP of the signal is substituted into ΔTA=g(RSRP) to obtain the corresponding ΔTA. Next, the TA determined based on the relevant information of the cell can be adjusted according to ΔTA to obtain the adjusted TA.

Among them, the general representation form of TA is an integer value. Therefore, for the TA adjustment value determined according to the second association relationship, if the TA adjustment value is an integer, it can be directly used for adjustment. If the TA adjustment value is not an integer, then it can be performed first. Rounding (such as rounding up or rounding down) is then used for adjustment.

Among them, the network device can carry the second association relationship in an RRC message (such as an RRC release message) and send it to the terminal, or it can also carry it in a multicast message, a broadcast message (such as a system message, a paging message), and other messages and send it to the terminal. . This disclosure does not limit the method of sending the second association relationship.

Corresponding to the foregoing embodiments of the positioning reference signal transmitting method and the positioning reference signal receiving method, the present disclosure also provides embodiments of a reference signal transmitting device and a positioning reference signal receiving device.

FIG. 8 is a schematic block diagram of a positioning reference signal transmitting device according to an embodiment of the present disclosure. The positioning reference signal sending device shown in this embodiment can be applied to terminals, which include but are not limited to mobile phones, tablet computers, wearable devices, sensors, Internet of Things devices and other communication devices. The terminal can communicate with network equipment, which includes but is not limited to network equipment in 4G, 5G, 6G and other communication systems, such as base stations, core networks, etc.

As shown in Figure 8, the positioning reference signal sending device may include:

The receiving module 801 is configured to receive the first association relationship between the first information and the timing advance TA;

The processing module 802 is configured to determine the TA corresponding to the first information according to the first association relationship;

The sending module 803 is configured to send the positioning reference signal to the network device according to the determined TA.

In one embodiment, the first information includes at least one of the following: related information of the first signal; related information of the cell.

In one embodiment, the relevant information of the first signal includes at least one of the following: a path loss determined based on the first signal; a strength of the first signal; and a signal-to-interference-to-noise ratio of the first signal.

In one embodiment, the first association relationship includes at least one of the following: a discontinuous association relationship between the first information and TA; and a continuous association relationship between the first information and TA.

In one embodiment, the processing module is configured to determine the relevant information of the received first signal; determine the TA corresponding to the relevant information of the first signal according to the first association relationship; wherein, the first One piece of information includes information related to the first signal.

In one embodiment, the processing module is further configured to determine the relevant information of the current cell; determine the TA corresponding to the relevant information of the current cell according to the first association relationship; wherein the first information includes the cell related information.

In one embodiment, the processing module is further configured to determine a second correlation between the correlation information of the second signal and the TA adjustment value; and determine the correlation of the acquired second signal according to the second correlation. The TA adjustment value corresponding to the information; adjust the determined TA according to the TA adjustment value;

Wherein, the sending module is configured to send the positioning reference signal to the network device according to the adjusted TA.

In one embodiment, the relevant information of the second signal includes at least one of the following: a path loss determined based on the second signal; a strength of the second signal; and a signal-to-interference-to-noise ratio of the second signal.

In one embodiment, the sending module is further configured to determine the TA indicated by the network device, and send the positioning reference signal to the network device according to the TA.

Figure 9 is a schematic block diagram of a positioning reference signal receiving device according to an embodiment of the present disclosure. The positioning reference signal receiving device shown in this embodiment can be applied to network equipment, which can communicate with terminals. The network equipment includes but is not limited to base stations in communication systems such as 4G base stations, 5G base stations, and 6G base stations. The terminals include but are not limited to mobile phones, tablets, wearable devices, sensors, Internet of Things devices and other communication devices.

As shown in Figure 9, the positioning reference signal receiving device may include:

The sending module 901 is configured to send a first association relationship between the first information and the timing advance TA to the terminal, where the first association relationship is used to instruct the terminal to determine the TA to be used when sending the positioning reference signal to the network device. , wherein the TA is determined based on the first association relationship and the first information;

The receiving module 902 is configured to receive the positioning reference signal sent by the terminal according to the TA.

In one embodiment, the first information includes at least one of the following: related information of the first signal; related information of the cell.

In one embodiment, the relevant information of the first signal includes at least one of the following: a path loss determined based on the first signal; a strength of the first signal; and a signal-to-interference-to-noise ratio of the first signal.

In one embodiment, the first association relationship includes at least one of the following: a discontinuous association relationship between the first information and TA; and a continuous association relationship between the first information and TA.

In one embodiment, the sending module is further configured to send to the terminal a second association between the relevant information of the second signal and the TA adjustment value, used to instruct the terminal to perform the following steps according to the relevant information of the cell. When the TA is determined with the first association relationship, the determined TA is adjusted according to the TA adjustment value.

In one embodiment, the relevant information of the second signal includes at least one of the following: a path loss determined based on the second signal; a strength of the second signal; and a signal-to-interference-to-noise ratio of the second signal.

Regarding the devices in the above embodiments, the specific manner in which each module performs operations has been described in detail in the embodiments of the relevant methods, and will not be described in detail here.

As for the device embodiment, since it basically corresponds to the method embodiment, please refer to the partial description of the method embodiment for relevant details. The device embodiments described above are only illustrative. The modules described as separate components may or may not be physically separated. The components shown as modules may or may not be physical modules, that is, they may be located in One place, or it can be distributed to multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Persons of ordinary skill in the art can understand and implement the method without any creative effort.

An embodiment of the present disclosure also provides a communication device, including: a processor; a memory for storing a computer program; wherein when the computer program is executed by the processor, the positioning reference signal described in any of the above embodiments is implemented Send method.

An embodiment of the present disclosure also provides a communication device, including: a processor; a memory for storing a computer program; wherein when the computer program is executed by the processor, the positioning reference signal described in any of the above embodiments is implemented Receive method.

Embodiments of the present disclosure also provide a computer-readable storage medium for storing a computer program. When the computer program is executed by a processor, the steps in the positioning reference signal sending method described in any of the above embodiments are implemented.

Embodiments of the present disclosure also provide a computer-readable storage medium for storing a computer program. When the computer program is executed by a processor, the steps in the positioning reference signal receiving method described in any of the above embodiments are implemented.

As shown in FIG. 10 , FIG. 10 is a schematic block diagram of a device 1000 for association relationship indication according to an embodiment of the present disclosure. The apparatus 1000 may be provided as a base station. Referring to Figure 10, apparatus 1000 includes a processing component 1022, a wireless transmit/receive component 1024, an antenna component 1026, and a signal processing portion specific to the wireless interface. The processing component 1022 may further include one or more processors. One of the processors in the processing component 1022 may be configured to implement the positioning reference signal receiving method described in any of the above embodiments.

FIG. 11 is a schematic block diagram of an apparatus 1100 for positioning reference signal transmission according to an embodiment of the present disclosure. For example, device 1100 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, or the like.

Referring to FIG. 11 , device 1100 may include one or more of the following components: processing component 1102 , memory 1104 , power supply component 1106 , multimedia component 1108 , audio component 1110 , input/output (I/O) interface 1112 , sensor component 1114 , and Communication component 1116.

Processing component 1102 generally controls the overall operations of device 1100, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 1102 may include one or more processors 1120 to execute instructions to complete all or part of the steps of the above positioning reference signal sending method. Additionally, processing component 1102 may include one or more modules that facilitate interaction between processing component 1102 and other components. For example, processing component 1102 may include a multimedia module to facilitate interaction between multimedia component 1108 and processing component 1102.

Memory 1104 is configured to store various types of data to support operations at device 1100 . Examples of such data include instructions for any application or method operating on device 1100, contact data, phonebook data, messages, pictures, videos, etc. Memory 1104 may be implemented by any type of volatile or non-volatile storage device, or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EEPROM), Programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

Power supply component 1106 provides power to various components of device 1100 . Power supply components 1106 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 1100 .

Multimedia component 1108 includes a screen that provides an output interface between the device 1100 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a 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 may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide action. In some embodiments, multimedia component 1108 includes a front-facing camera and/or a rear-facing camera. When the device 1100 is in an operating mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front-facing camera and rear-facing camera can be a fixed optical lens system or have a focal length and optical zoom capabilities.

Audio component 1110 is configured to output and/or input audio signals. For example, audio component 1110 includes a microphone (MIC) configured to receive external audio signals when device 1100 is in operating modes, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1104 or sent via communications component 1116 . In some embodiments, audio component 1110 also includes a speaker for outputting audio signals.

The I/O interface 1112 provides an interface between the processing component 1102 and a peripheral interface module. The peripheral interface module may be a keyboard, a click wheel, a button, etc. These buttons may include, but are not limited to: Home button, Volume buttons, Start button, and Lock button.

Sensor component 1114 includes one or more sensors for providing various aspects of status assessment for device 1100 . For example, the sensor component 1114 can detect the open/closed state of the device 1100, the relative positioning of components, such as the display and keypad of the device 1100, and the sensor component 1114 can also detect a change in position of the device 1100 or a component of the device 1100. , the presence or absence of user contact with device 1100 , device 1100 orientation or acceleration/deceleration and temperature changes of device 1100 . Sensor assembly 1114 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 1114 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 1114 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

Communications component 1116 is configured to facilitate wired or wireless communications between device 1100 and other devices. Device 1100 may access a wireless network based on a communication standard, such as WiFi, 2G, 3G, 4G LTE, 5G NR, or a combination thereof. In one exemplary embodiment, the communication component 1116 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communications component 1116 also includes a near field communications (NFC) module to facilitate short-range communications. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

In an exemplary embodiment, apparatus 1100 may be configured 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 array (FPGA), controller, microcontroller, microprocessor or other electronic components are implemented for executing the above positioning reference signal sending method.

In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions, such as a memory 1104 including instructions, is also provided. The instructions can be executed by the processor 1120 of the device 1100 to complete the above positioning reference signal transmitting method. For example, the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

Other embodiments of the disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. The present disclosure is intended to cover any variations, uses, or adaptations of the disclosure that follow the general principles of the disclosure and include common common sense or customary technical means in the technical field that are not disclosed in the disclosure. . It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise structures described above and illustrated in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the disclosure is limited only by the appended claims.

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

The methods and devices provided by the embodiments of the present disclosure have been introduced in detail above. Specific examples are used in this article to illustrate the principles and implementations of the present disclosure. The description of the above embodiments is only used to help understand the methods and methods of the present disclosure. The core idea; at the same time, for those of ordinary skill in the art, there will be changes in the specific implementation and application scope based on the ideas of this disclosure. In summary, the content of this description should not be understood as a limitation of this disclosure. .

Claims (21)

A positioning reference signal sending method, characterized in that it is executed by a terminal, and the method includes: Receive the first association between the first information and the timing advance TA; Determine the TA corresponding to the first information according to the first association relationship; Send a positioning reference signal to the network device according to the determined TA. The method of claim 1, wherein the first information includes at least one of the following: Information related to the first signal; Information about the community. The method according to claim 2, characterized in that the relevant information of the first signal includes at least one of the following: Path loss determined based on the first signal; The strength of the first signal; The signal-to-interference-to-noise ratio of the first signal. The method according to claim 2, characterized in that the first association relationship includes at least one of the following: The discontinuous association between the first information and TA; and The continuous association relationship between the first information and TA. The method according to claim 2, wherein determining the TA corresponding to the first information according to the first association relationship includes: receive the first signal; Determine relevant information of the first signal; Determine the TA corresponding to the relevant information of the first signal according to the first association relationship; Wherein, the first information includes information related to the first signal. The method according to claim 2, wherein determining the TA corresponding to the first information according to the first association relationship includes: Determine relevant information of the current community; Determine the TA corresponding to the relevant information of the current cell according to the first association relationship; Wherein, the first information includes relevant information of the cell. The method according to claim 6, characterized in that, before sending the positioning reference signal to the network device according to the determined TA, the method further includes: Determine the second correlation between the relevant information of the second signal and the TA adjustment value; Determine the TA adjustment value corresponding to the obtained relevant information of the second signal according to the second correlation relationship; Adjust the determined TA according to the TA adjustment value; Wherein, sending the positioning reference signal to the network device according to the determined TA includes: Send a positioning reference signal to the network device according to the adjusted TA. The method according to claim 7, characterized in that the relevant information of the second signal includes at least one of the following: Path loss determined based on the second signal; The strength of the second signal; The signal-to-interference-to-noise ratio of the second signal. The method according to any one of claims 1 to 8, characterized in that, before sending the positioning reference signal to the network device according to the determined TA, the method further includes: Determine the TA indicated by the network device; Send a positioning reference signal to the network device according to the TA. A positioning reference signal receiving method, characterized in that it is executed by a network device, and the method includes: Send a first association relationship between the first information and the timing advance TA to the terminal, where the first association relationship is used to instruct the terminal to determine the TA to be used when sending the positioning reference signal to the network device, wherein the TA is based on The first association relationship and the first information are determined; Receive the positioning reference signal sent by the terminal according to the TA. The method according to claim 10, characterized in that the first information includes at least one of the following: Information related to the first signal; Information about the community. The method according to claim 11, characterized in that the relevant information of the first signal includes at least one of the following: Path loss determined based on the first signal; The strength of the first signal; The signal-to-interference-to-noise ratio of the first signal. The method according to claim 10, characterized in that the first association relationship includes at least one of the following: The discontinuous association between the first information and TA; and The continuous association relationship between the first information and TA. The method according to claim 10, characterized in that the method includes: Send a second correlation between the relevant information of the second signal and the TA adjustment value to the terminal, used to instruct the terminal to determine the TA according to the relevant information of the cell and the first correlation. The above TA adjustment value adjusts the determined TA. The method according to claim 14, characterized in that the relevant information of the second signal includes at least one of the following: Path loss determined based on the second signal; The strength of the second signal; The signal-to-interference-to-noise ratio of the second signal. A positioning reference signal sending device, characterized in that the device includes: a receiving module configured to receive a first association between the first information and the timing advance TA; A processing module configured to determine the TA corresponding to the first information according to the first association relationship; The sending module is configured to send the positioning reference signal to the network device according to the determined TA. A positioning reference signal receiving device, characterized in that the device includes: A sending module configured to send a first association relationship between the first information and the timing advance TA to the terminal, where the first association relationship is used to instruct the terminal to determine the TA used when sending the positioning reference signal to the network device, Wherein, the TA is determined based on the first association relationship and the first information; A receiving module configured to receive a positioning reference signal sent by the terminal according to the TA. A communication device, characterized by including: processor; Memory used to store computer programs; Wherein, when the computer program is executed by the processor, the positioning reference signal sending method according to any one of claims 1 to 9 is implemented. A communication device, characterized by including: processor; Memory used to store computer programs; Wherein, when the computer program is executed by the processor, the positioning reference signal receiving method according to any one of claims 10 to 15 is implemented. A computer-readable storage medium used to store a computer program, characterized in that when the computer program is executed by a processor, the steps in the positioning reference signal transmitting method described in any one of claims 1 to 9 are implemented. . A computer-readable storage medium for storing a computer program, characterized in that when the computer program is executed by a processor, the steps in the positioning reference signal receiving method according to any one of claims 10 to 15 are implemented .

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