CN117641549A

CN117641549A - Power control method, terminal, network side equipment, device and storage medium of SL-PRS

Info

Publication number: CN117641549A
Application number: CN202210969112.2A
Authority: CN
Inventors: 李辉; 任晓涛; 达人; 任斌
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2024-03-01
Also published as: WO2024032648A1

Abstract

The application provides a power control method, a terminal, network side equipment, a device and a storage medium for a straight-through link positioning reference signal SL-PRS, wherein the method comprises the following steps: transmitting a first signal to at least one second terminal, and receiving a first measurement result of the first signal fed back by at least one second terminal; or, receiving a second signal sent by at least one second terminal, and determining a second measurement result of the second signal; and determining the first transmission power of the SL-PRS according to the first measurement result, or determining the first transmission power of the SL-PRS according to the second measurement result. According to the method and the device, the measurement result is fed back to the target UE (the first terminal) through at least one other UE (the second terminal), or the target UE measures signals of a plurality of other UEs, so that the transmission power of the SL-PRS of the target UE is determined, the coverage range of the positioning reference signal is ensured, and the interference to uplink and downlink signals is reduced.

Description

Power control method, terminal, network side equipment, device and storage medium of SL-PRS

Technical Field

The present disclosure relates to the field of wireless communications technologies, and in particular, to a power control method, a terminal, a network side device, an apparatus, and a storage medium for SL-PRS.

Background

To support the need for positioning, the 5G new air interface (NR) air interface (Uu) defines an uplink positioning reference signal (SRS-Pos). And the transmission power control is carried out on the SRS-Pos, so that the uplink interference level of the SRS-Pos is reduced, and the problem of near-far effect is solved through the power control. In the positioning process, SRS-Pos signals are not only sent to the base station of the cell, but also need to be sent to the base station of the neighbor cell. SRS-Pos power control in release 16 (Rel-16) is achieved by estimating the path loss by making measurements based on the downlink signals of the neighbor cells. The scheme has the defects of higher complexity, and the measurement accuracy of the downlink signal brings a certain limit to the power control accuracy of the SRS-Pos. In Rel-16, the associated reference signal resources used to estimate the downlink pathloss may be synchronous broadcast block (SSB) or downlink positioning reference signal (DL-PRS) resources.

If the terminal equipment (UE) is far from the target cell or has strong interference, the UE may not be able to successfully measure the path loss of the serving cell or neighbor cell according to the configured SSB or DL-PRS. Rel-16 specifies that in this case the UE uses the reference signal resources in the serving cell SSB as a pathloss reference signal, i.e. the secondary synchronization signal SSS comprised by the SSB is used as pathloss reference signal.

However, in a direct link (sidelink) system, there is no configuration of the positioning reference signal and no corresponding power control mechanism.

Disclosure of Invention

The application provides a power control method, a terminal, network side equipment, a device and a storage medium for a straight-through link positioning reference signal SL-PRS, which are used for solving the defects that the positioning reference signal is not configured and a corresponding power control mechanism is not available in the prior art, and realizing the power control of the SL-PRS.

The application provides a power control method of a direct link positioning reference signal SL-PRS, which is applied to a first terminal and comprises the following steps:

transmitting a first signal to at least one second terminal, and receiving a first measurement result of the first signal fed back by at least one second terminal; or, receiving a second signal sent by at least one second terminal, and determining a second measurement result of the second signal;

and determining the first transmission power of the SL-PRS according to the first measurement result, or determining the first transmission power of the SL-PRS according to the second measurement result.

The power control method of the SL-PRS provided by the application further comprises the following steps:

and transmitting the SL-PRS according to the first transmission power of the SL-PRS.

According to the power control method of the SL-PRS provided by the application, the determining the transmitting power of the SL-PRS according to the first measurement result comprises the following steps:

determining path loss from the first terminal to a plurality of second terminals according to the first measurement result and the transmission power of the first signal;

determining a first transmission power of the SL-PRS according to the maximum value of the path losses;

or,

determining a path loss according to the minimum value in the first measurement result and the transmission power of the first signal;

and determining the first transmitting power of the SL-PRS according to the path loss.

The power control method of the SL-PRS provided by the application further comprises the following steps: receiving the transmission power of the second signal;

the determining the transmission power of the SL-PRS according to the second measurement result includes:

determining a maximum value of path losses from the first terminal to a plurality of the second terminals according to the second measurement result and the transmission power of the second signal;

or,

determining a path loss according to the minimum value in the second measurement result and the transmission power of the second signal;

The power control method of the SL-PRS provided by the application further comprises the following steps: receiving a third signal sent by network side equipment, and determining a third measurement result of the third signal;

the determining the first transmission power of the SL-PRS according to the first measurement result includes:

determining a first transmission power of the SL-PRS according to the first measurement result and the third measurement result; or,

the determining the first transmission power of the SL-PRS according to the second measurement result includes:

and determining the first transmission power of the SL-PRS according to the second measurement result and the third measurement result.

According to the power control method of the SL-PRS provided in the present application, the determining, according to the first measurement result and the third measurement result, the first transmission power of the SL-PRS includes:

determining a second transmission power of the SL-PRS according to the first measurement result, and determining a third transmission power of the SL-PRS according to the third measurement result;

determining a first transmission power of the SL-PRS according to the maximum value or the minimum value of the second transmission power and the third transmission power; or,

The determining the first transmission power of the SL-PRS according to the second measurement result and the third measurement result includes:

determining a fourth transmission power of the SL-PRS according to the second measurement result, and determining a third transmission power of the SL-PRS according to the third measurement result;

and determining the first transmission power of the SL-PRS according to the maximum value or the minimum value of the fourth transmission power and the third transmission power.

The power control method of the SL-PRS provided by the application further comprises the following steps: receiving the transmission power of the third signal;

the determining the third transmission power of the SL-PRS according to the third measurement result includes:

determining a maximum value in the path loss from the first terminal to the network side equipment according to the third measurement result and the transmission power of the third signal;

determining a third transmission power of the SL-PRS according to the maximum value of the path loss;

or,

determining the path loss from the first terminal to the network side equipment corresponding to the minimum value in the third measurement result according to the minimum value in the third measurement result and the transmission power of the third signal;

And determining a third transmitting power of the SL-PRS according to the path loss.

According to the power control method of the SL-PRS provided by the application, the first signal or the second signal comprises at least one of the following:

SL-PRS；

a synchronous broadcast block SSB;

demodulation reference signal DMRS.

According to the power control method of the SL-PRS provided by the application, the first measurement result or the second measurement result comprises at least one of the following:

reference signal received power RSRP;

filtered RSRP.

According to the power control method of the SL-PRS provided by the application, the second terminal is determined by at least one of the following modes:

determining the second terminal according to the distance from the first terminal to other terminals;

and determining the second terminal according to the measurement results of the other terminals on the first signal.

According to the power control method of the SL-PRS provided by the application, the third signal comprises at least one of the following:

downlink positioning reference signals, DL-PRSs;

a synchronous broadcast block SSB;

channel state information reference signal CSI-RS;

demodulation reference signal DMRS.

In a second aspect, the present application further provides a power control method of SL-PRS, applied to a second terminal, including:

Receiving a first signal sent by a first terminal;

determining a first measurement result of the first signal, and sending the first measurement result to the first terminal, wherein the first measurement result is used for determining a first sending power of SL-PRS;

or, transmitting a second signal to the first terminal, where the second signal is used to determine a second measurement result of the second signal, and the second measurement result is used to determine a first transmission power of SL-PRS.

According to the power control method of the SL-PRS provided herein, when the second signal is sent to the first terminal, the method further includes:

and transmitting the transmission power of the second signal to the first terminal, wherein the transmission power of the second signal is used for determining the path loss from the first terminal to the second terminal.

SL-PRS；

a synchronous broadcast block SSB;

demodulation reference signal DMRS.

reference signal received power RSRP;

Filtered RSRP.

In a third aspect, the present application further provides a power control method for a direct link positioning reference signal SL-PRS, applied to a network side device, including:

and transmitting a third signal to the first terminal, wherein the third signal is used for determining a third measurement result of the third signal, and the third measurement result is used for determining the first transmission power of the SL-PRS.

and transmitting the transmission power of the third signal to the first terminal, wherein the transmission power of the third signal is used for determining the path loss from the first terminal to the network side equipment.

downlink positioning reference signals, DL-PRSs;

a synchronous broadcast block SSB;

Channel state information reference signal CSI-RS;

demodulation reference signal DMRS.

In a fourth aspect, the present application further provides a first terminal, including a memory, a transceiver, and a processor;

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

According to the first terminal provided by the application, the following operations are also performed:

According to the first terminal provided by the application, the determining the transmission power of the SL-PRS according to the first measurement result includes:

or,

According to the first terminal provided by the application, the following operations are also performed: receiving the transmission power of the second signal;

or,

According to the first terminal provided by the application, the following operations are also performed: receiving a third signal sent by network side equipment, and determining a third measurement result of the third signal;

According to the first terminal provided by the application, the determining the first transmission power of the SL-PRS according to the first measurement result and the third measurement result includes:

According to the first terminal provided by the application, the following operations are also performed: receiving the transmission power of the third signal;

or,

According to the first terminal provided by the application, the first signal or the second signal comprises at least one of the following:

SL-PRS；

a synchronous broadcast block SSB;

demodulation reference signal DMRS.

According to the first terminal provided by the application, the first measurement result or the second measurement result comprises at least one of the following:

Reference signal received power RSRP;

filtered RSRP.

According to the first terminal provided by the application, the second terminal is determined by at least one of the following modes:

According to the first terminal provided by the application, the third signal includes at least one of the following:

downlink positioning reference signals, DL-PRSs;

a synchronous broadcast block SSB;

channel state information reference signal CSI-RS;

demodulation reference signal DMRS.

In a fifth aspect, the present application further provides a second terminal, including a memory, a transceiver, and a processor;

receiving a first signal sent by a first terminal;

According to the second terminal provided by the application, under the condition that the second signal is sent to the first terminal, the following operations are further executed:

According to the second terminal provided by the application, the first signal or the second signal comprises at least one of the following:

SL-PRS；

a synchronous broadcast block SSB;

demodulation reference signal DMRS.

According to the second terminal provided by the application, the first measurement result or the second measurement result comprises at least one of the following:

reference signal received power RSRP;

filtered RSRP.

According to the second terminal provided by the application, the second terminal is determined by at least one of the following modes:

In a sixth aspect, the present application further provides a network side device, including a memory, a transceiver, and a processor;

According to the network side device provided by the application, the following operations are further performed:

According to the network side device provided by the application, the third signal includes at least one of the following:

downlink positioning reference signals, DL-PRSs;

a synchronous broadcast block SSB;

channel state information reference signal CSI-RS;

demodulation reference signal DMRS.

In a seventh aspect, the present application further provides a power control apparatus for a direct link positioning reference signal SL-PRS, applied to a first terminal, including:

The measurement result determining unit is used for sending a first signal to at least one second terminal and receiving a first measurement result fed back by the at least one second terminal to the first signal; or, the device is used for receiving a second signal sent by at least one second terminal and determining a second measurement result of the second signal;

and the transmission power determining unit is used for determining the first transmission power of the SL-PRS according to the first measurement result or determining the first transmission power of the SL-PRS according to the second measurement result.

In an eighth aspect, the present application further provides a power control apparatus for a direct link positioning reference signal SL-PRS, applied to a second terminal, including:

a first signal receiving unit, configured to receive a first signal sent by a first terminal;

a first measurement result sending unit, configured to determine a first measurement result of the first signal, and send the first measurement result to the first terminal, where the first measurement result is used to determine a first transmission power of SL-PRS;

or, a second signal transmitting unit, configured to transmit a second signal to the first terminal, where the second signal is used to determine a second measurement result of the second signal, and the second measurement result is used to determine a first transmission power of SL-PRS.

In a ninth aspect, the present application further provides a power control apparatus for a direct link positioning reference signal SL-PRS, applied to a network side device, including:

and a third signal transmitting unit, configured to transmit a third signal to the first terminal, where the third signal is used to determine a third measurement result of the third signal, and the third measurement result is used to determine the first transmission power of the SL-PRS.

In a tenth aspect, the present application further provides a processor readable storage medium storing a computer program for causing the processor to perform the power control method of the through link positioning reference signal SL-PRS according to the first aspect or to perform the power control method of the through link positioning reference signal SL-PRS according to the second aspect or to perform the power control method of the through link positioning reference signal SL-PRS according to the third aspect.

According to the power control method, terminal, network side equipment, device and storage medium for the direct link positioning reference signal SL-PRS, the measurement result is fed back to the target UE (first terminal) through at least one other UE (second terminal), or the target UE measures signals of a plurality of other UEs, so that the transmission power of the SL-PRS of the target UE is determined, the coverage range of the positioning reference signal is ensured, and the interference on uplink and downlink signals is reduced.

Drawings

For a clearer description of the present application or of the prior art, the drawings that are used in the description of the embodiments or of the prior art will be briefly described, it being apparent that the drawings in the description below are some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a flow chart of a method for controlling the power of SL-PRS provided by the application;

FIG. 2 is a second flow chart of a power control method of SL-PRS provided by the present application;

FIG. 3 is a third flow chart of a power control method for SL-PRS provided by the present application;

FIG. 4 is one of the schematic diagrams of the SL-PRS power control method provided herein;

FIG. 5 is a second schematic diagram of a power control method for SL-PRS provided herein;

fig. 6 is a schematic structural diagram of a first terminal provided in the present application;

fig. 7 is a schematic structural diagram of a second terminal provided in the present application;

fig. 8 is a schematic structural diagram of a network side device provided in the present application;

FIG. 9 is a schematic diagram of a SL-PRS power control device provided by the application;

FIG. 10 is a second schematic diagram of a power control device for SL-PRS provided by the present application;

fig. 11 is a third schematic structural diagram of a power control device of SL-PRS provided in the present application.

Detailed Description

In the embodiment of the application, the term "and/or" describes the association relationship of the association objects, which means that three relationships may exist, for example, a and/or B may be represented: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. The term "plurality" in the embodiments of the present application means two or more, and other adjectives are similar thereto.

The term "determining B based on a" in the present application means that a is a factor to be considered in determining B. Not limited to "B can be determined based on A alone", it should also include: "B based on A and C", "B based on A, C and E", "C based on A, further B based on C", etc. Additionally, a may be included as a condition for determining B, for example, "when a satisfies a first condition, B is determined using a first method"; for another example, "when a satisfies the second condition, B" is determined, etc.; for another example, "when a satisfies the third condition, B" is determined based on the first parameter, and the like. Of course, a may be a condition in which a is a factor for determining B, for example, "when a satisfies the first condition, C is determined using the first method, and B is further determined based on C", or the like, and "according to" having an equivalent meaning as "based on" also expresses a similar meaning.

The technical scheme provided by the embodiment of the application can be suitable for various systems, in particular to a 5G system. For example, suitable systems may be global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) universal packet Radio service (general packet Radio service, GPRS), long term evolution (long term evolution, LTE), LTE frequency division duplex (frequency division duplex, FDD), LTE time division duplex (time division duplex, TDD), long term evolution-advanced (long term evolution advanced, LTE-a), universal mobile system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX), 5G New air interface (New Radio, NR), and the like. Terminal devices and network devices are included in these various systems. Core network parts such as evolved packet system (Evloved Packet System, EPS), 5G system (5 GS) etc. may also be included in the system.

The terminal device according to the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem, etc. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal devices may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDAs), and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), user equipment (user device), and the embodiments of the present application are not limited.

The network device according to the embodiment of the present application may be a base station, where the base station may include a plurality of cells for providing services for a terminal. A base station may also be called an access point or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or other names, depending on the particular application. The network device may be operable to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in a global system for mobile communications (Global System for Mobile communications, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a network device (NodeB) in a wideband code division multiple access (Wide-band Code Division Multiple Access, WCDMA), an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a home evolved base station (Home evolved Node B, heNB), a relay node (relay node), a home base station (femto), a pico base station (pico), and the like. In some network structures, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

Multiple-input Multiple-output (Multi Input Multi Output, MIMO) transmissions may each be made between a network device and a terminal device using one or more antennas, and the MIMO transmissions may be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of the root antenna combinations.

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

Fig. 1 is one of flow diagrams of a power control method of a through link positioning reference signal SL-PRS provided in an embodiment of the present application, and referring to fig. 1, an embodiment of the present application provides a power control method of a SL-PRS, an execution subject of which may be a first terminal, also referred to as a target terminal (UE), for example, a device such as a vehicle capable of performing through link communication, where the method includes:

Step 101, a first signal is sent to at least one second terminal, and a first measurement result of the first signal, which is fed back by at least one second terminal, is received; or, receiving a second signal sent by at least one second terminal, and determining a second measurement result of the second signal;

step 102, determining the first transmission power of the SL-PRS according to the first measurement result, or determining the first transmission power of the SL-PRS according to the second measurement result.

Specifically, a target terminal sends a first signal and receives a measurement result of the first signal, which is fed back by at least one second terminal; or the target terminal receives the second signal sent by at least one second terminal and determines the measurement result of the second signal. And the measurement result of the first signal or the measurement result of the second signal is used for determining the transmission power of the positioning reference signal, namely, the target terminal determines the transmission power of the SL-PRS based on the first measurement result or the second measurement result.

For example, the target terminal transmits positioning reference signals (SL-PRS) to three second terminals in a multicast manner, the second terminals respectively measure the SL-PRS and determine the corresponding RSRP, and then respectively feed back the corresponding RSRP measurement results to the target terminal, which determines the transmission power of the SL-PRS based on the RSRP measurement results. Or, the target terminal receives positioning reference signals (SL-PRS) transmitted by the four second terminals, and the target terminal respectively measures the SL-PRS and determines a corresponding RSRP, and then determines a transmission power of the SL-PRS based on the RSRP measurement result. The first signal is here the SL-PRS, and the measurement of the SL-PRS is in turn used to determine the transmit power of the SL-PRS, corresponding to a procedure in which feedback is present, i.e. an output of the system itself is working, which in turn affects the output of the system as an input.

According to the power control method for the SL-PRS, the measurement result is fed back to the target UE (the first terminal) through at least one other UE (the second terminal), or the target UE measures signals of a plurality of other UEs, so that the transmission power of the SL-PRS of the target UE is determined, the coverage range of a positioning reference signal is ensured, and the interference to uplink and downlink signals is reduced.

Optionally, the power control method of the SL-PRS according to an embodiment of the present application further includes:

Specifically, the target terminal transmits the positioning reference signal according to the determined transmission power of the positioning reference signal. For example, after determining the transmission power of the SL-PRS based on the RSRP measurement result, the target terminal transmits the cut-through link positioning reference signal SL-PRS using the determined transmission power of the SL-PRS.

Optionally, according to the method for controlling the power of the SL-PRS provided in the embodiment of the present application, determining, according to the first measurement result, the transmission power of the SL-PRS includes:

or,

Specifically, the target terminal determines the path loss between the target terminal and the plurality of second terminals according to the measurement result of the first signal and the transmission power of the first signal. The maximum value of the path loss is selected and the transmission power of the positioning reference signal is determined. For example, the target UE calculates a path loss from the target UE to each second UE according to RSRP fed back by the plurality of second UEs and the transmission power of the SL-PRS of the target UE, and then the target UE selects a maximum value among them according to the calculated path loss, thereby determining the transmission power of the SL-PRS. Or the target terminal selects the minimum value in the measurement result of the first signal, and then determines the path loss according to the transmission power of the first signal, wherein the determined path loss is the maximum value of the path loss between the target terminal and the plurality of second terminals theoretically, and the target UE determines the transmission power of the SL-PRS according to the determined path loss.

Optionally, the power control method of the SL-PRS according to an embodiment of the present application further includes: receiving the transmission power of the second signal;

or,

Specifically, the target terminal receives the transmission power of the second signals, determines the path loss of a plurality of second terminals according to the measurement results of the second signals, selects the maximum value of the path loss, and determines the transmission power of the positioning reference signals. For example, the target UE receives the respective transmission powers of the SL-PRSs transmitted by the second terminals, calculates a path loss of the target UE to each of the second UEs along with the RSRP measured by the target UE, and then, the target UE selects a maximum value among them according to the calculated path loss, thereby determining the transmission power of the SL-PRS. Or the target terminal receives the transmission power of the second signal, and then determines the path loss according to the minimum value in the measurement result of the second signal, thereby determining the transmission power of the positioning reference signal. For example, the target UE receives the respective transmission powers of the SL-PRSs transmitted by the second terminal, calculates a path loss together with the minimum value of the RSRP measured by the target UE, and then determines the transmission power of the SL-PRS according to the calculated path loss.

Optionally, the power control method of the SL-PRS according to an embodiment of the present application further includes: receiving a third signal sent by network side equipment, and determining a third measurement result of the third signal;

Specifically, the target terminal also receives a third signal sent by the network side device, determines a measurement result of the third signal, and further obtains path loss, thereby determining the sending power of the positioning reference signal. For example, the target terminal determines the transmission power of the reference signal of the alternative bit according to the measurement result of the first signal and the measurement result of the third signal, and then determines the transmission power of the positioning reference signal according to the transmission power of the reference signal of the alternative bit. Or the target terminal respectively determines the transmission power of the reference signal with the alternative position according to the measurement result of the second signal and the measurement result of the third signal, and then determines the transmission power of the positioning reference signal according to the transmission power of the reference signal with the alternative position.

Optionally, according to the method for controlling power of SL-PRS provided in the embodiment of the present application, determining, according to the first measurement result and the third measurement result, a first transmission power of the SL-PRS includes:

Specifically, the target terminal determines the second transmission power of the SL-PRS and the third transmission power of the SL-PRS according to the measurement result of the first signal and the measurement result of the third signal, and then selects a maximum value (ensuring the coverage of the maximum positioning reference signal) or a minimum value (avoiding interference to uplink and downlink signals) from the second transmission power of more than one SL-PRS and the third transmission power of the SL-PRS, and determines the first transmission power of the SL-PRS. Or the target terminal respectively determines the fourth transmission power of the SL-PRS and the third transmission power of the SL-PRS according to the measurement result of the second signal and the measurement result of the third signal, then selects the maximum value (ensuring the coverage of the maximum positioning reference signal) or the minimum value (avoiding interference to uplink and downlink signals) from the fourth transmission power of more than one SL-PRS and the third transmission power of the SL-PRS, and determines the first transmission power of the SL-PRS.

Optionally, the power control method of the SL-PRS according to an embodiment of the present application further includes: receiving the transmission power of the third signal;

or,

Specifically, with reference to the manner in which the target terminal determines the transmission power of the SL-PRS according to the second measurement result, the target terminal may determine the transmission power of the SL-PRS according to the third measurement result. For example, the target UE receives the transmission power of the SSB or DL-PRS transmitted by the network side device, calculates the path loss from the target UE to the network side device together with the RSRP measured by the target UE, and then, the target UE selects the maximum value according to the calculated path loss, thereby determining the transmission power of the SL-PRS. Or the target terminal receives the transmitting power of the network side equipment, and then determines the path loss according to the minimum value in the measuring result of the third signal, thereby determining the transmitting power of the positioning reference signal. For example, the target UE receives the transmission power of the SSB transmitted by the network side device, calculates the path loss together with the minimum value of the RSRP measured by the target UE, and then determines the transmission power of the SL-PRS according to the calculated path loss.

Optionally, according to the power control method of SL-PRS provided in an embodiment of the present application, the first signal or the second signal includes at least one of:

SL-PRS；

a synchronous broadcast block SSB;

demodulation reference signal DMRS.

Specifically, the first signal or the second signal includes at least one of a positioning reference signal, SSB, DMRS. For example, the first signal is a through link positioning reference signal (sidelink positioning reference signal, SL-PRS) or the second signal is a synchronous broadcast Block (Synchronization Signal/PBCH Block, SSB).

Optionally, according to the power control method of SL-PRS provided in the embodiment of the present application, the first measurement result or the second measurement result includes at least one of the following:

reference signal received power RSRP;

filtered RSRP.

In particular, the first measurement result or the second measurement result is a reference signal received power, RSRP, or a filtered RSRP. For example, one way is that the target UE performs time domain filtering on the RSRP reported by the second UE to obtain a filtered RSRP; another way is that the RSRP reported by the second UE has been time-domain filtered.

Optionally, according to the power control method of SL-PRS provided in the embodiment of the present application, the second terminal is determined by at least one of the following manners:

Specifically, the determination of the second UE may be that the target UE sends distance information, and other UEs that receive the distance information determine whether the target UE is within the effective range according to the distance information. If the distance information is met, the UE determines to send a positioning reference signal to the target UE, or the UE determines to feed back a measurement result to the target UE. Alternatively, the system predefines a threshold value for RSRP. After receiving a signal (for example, SL-PRS or DMRS) of the target UE, the UE determines whether a threshold is met according to the measured RSRP. If the threshold value is met, the UE determines to feed back a measurement result to the target UE, or the UE determines to send a positioning reference signal to the target UE. The threshold value of RSRP may also be sent by the target UE.

Optionally, according to a power control method of SL-PRS provided in an embodiment of the present application, the third signal includes at least one of:

downlink positioning reference signals, DL-PRSs;

a synchronous broadcast block SSB;

channel state information reference signal CSI-RS;

demodulation reference signal DMRS.

Specifically, the third signal includes at least one of a positioning reference signal, SSB, CSI-RS, and DMRS. For example, the third signal is a downlink positioning reference signal (downlink positioning reference signal, DL-PRS) or the third signal is a synchronization broadcast Block (Synchronization Signal/PBCH Block, SSB).

The embodiment of the application provides a power control method of a direct link positioning reference signal SL-PRS, which is used for solving the defects that in the prior art, the positioning reference signal is not configured and a corresponding power control mechanism is not available, and realizing the power control of the SL-PRS. The power control method of the SL-PRS at the second terminal side will be described below, and it will be understood by those skilled in the art that the power control method of the SL-PRS at the second terminal side corresponds to the power control method of the SL-PRS at the first terminal side, and a corresponding technical effect can be achieved.

Fig. 2 is a second flowchart of a power control method of SL-PRS according to an embodiment of the present application, and referring to fig. 2, an embodiment of the present application provides a power control method of SL-PRS, where an execution body of the power control method may be a second terminal, also referred to as a second UE, for example, a device capable of performing a through link communication, and the device includes:

Step 201, receiving a first signal sent by a first terminal;

step 202, determining a first measurement result of the first signal, and sending the first measurement result to the first terminal, wherein the first measurement result is used for determining a first transmission power of SL-PRS;

or, in step 203, a second signal is sent to the first terminal, where the second signal is used to determine a second measurement result of the second signal, and the second measurement result is used to determine a first transmission power of SL-PRS.

Specifically, the second terminal receives a first signal sent by the target terminal, measures the first signal to obtain a measurement result of the first signal, and feeds back the first measurement result to the target terminal. Or the second terminal sends a second signal to the target terminal, wherein the second signal is used for the target terminal to measure the second signal to obtain a measurement result of the second signal, the measurement result of the first signal or the measurement result of the second signal is used for determining the sending power of the positioning reference signal, that is, the target terminal determines the sending power of the SL-PRS based on the first measurement result or the second measurement result.

Optionally, according to the power control method of SL-PRS provided in the embodiment of the present application, when sending a second signal to the first terminal, the method further includes:

SL-PRS；

a synchronous broadcast block SSB;

demodulation reference signal DMRS.

reference signal received power RSRP;

filtered RSRP.

The methods provided in the embodiments of the present application are based on the same application conception, so that the implementation of the methods of the first terminal side and the second terminal side may refer to each other, and the repetition is not repeated.

The embodiment of the application provides a power control method of a direct link positioning reference signal SL-PRS, which is used for solving the defects that in the prior art, the positioning reference signal is not configured and a corresponding power control mechanism is not available, and realizing the power control of the SL-PRS. The following describes a method for controlling the power of the SL-PRS on the network device side, and those skilled in the art will understand that the method for controlling the power of the SL-PRS on the network device side corresponds to the method for controlling the power of the SL-PRS on the first terminal side, so that a corresponding technical effect can be achieved.

Fig. 3 is a third flow chart of a power control method of SL-PRS according to an embodiment of the present application, and referring to fig. 3, an embodiment of the present application provides a power control method of SL-PRS, where an execution body of the power control method may be a network side device, which may also be referred to as a network device, for example, a device such as a base station, and includes:

step 301, transmitting a third signal to the first terminal, where the third signal is used to determine a third measurement result of the third signal, and the third measurement result is used to determine the first transmission power of the SL-PRS.

Specifically, the network device transmits a third signal to the target terminal, the third signal being used by the target terminal to determine the transmit power of the positioning reference signal.

Specifically, the network device also transmits transmission power information of the third signal to the target terminal.

downlink positioning reference signals, DL-PRSs;

a synchronous broadcast block SSB;

channel state information reference signal CSI-RS;

demodulation reference signal DMRS.

The methods provided in the embodiments of the present application are based on the same application conception, so that the implementation of the methods on the first terminal side and the network device side may refer to each other, and the repetition is not repeated.

The methods provided in each of the above embodiments of the present application are illustrated by the following specific examples.

Example 1: fig. 4 is one of schematic diagrams of a power control method of SL-PRS provided in the present application, and referring to fig. 4, it is assumed that a target UE transmits a positioning reference signal (SL-PRS) in a multicast manner, and second UEs (UE 2, UE3 and UE 4) respectively measure the SL-PRS and determine corresponding RSRP. And the second UE feeds back corresponding RSRP measurement results to the target UE respectively.

Wherein the determination of the second UE may be based on the target UE transmission distance information. And other UE receiving the distance information determines whether the UE is in the effective range according to the distance information. If the distance information is satisfied, for example, the UE is within the effective range determined by the distance information, the UE determines to feed back the measurement result to the target UE. In another embodiment, the system predefines a threshold value for RSRP. After receiving the SL-PRS of the target UE, the other UE determines whether the RSRP meets the threshold value according to the measured RSRP. If the threshold value is met, the UE determines to feed back the measurement result to the target UE. In another embodiment, the threshold value of RSRP is sent by the target UE.

And the target UE determines the path loss of the target UE to each second UE according to the RSRP fed back by the plurality of second UEs and the transmission power of the SL-PRS thereof. The path loss is calculated, for example, by:

PL＝P _tx –RSRP _f

wherein P is _tx Transmitting SL-PRS power, RSR for target UEP _f And determining based on the RSRP reported by the second UE. One way is that the target UE performs time domain filtering on the RSRP reported by the second UE, and the filtered result is determined as the RSRP _f The method comprises the steps of carrying out a first treatment on the surface of the Another way is that the RSRP reported by the second UE has been time-domain filtered such that the RSRP _f And the RSRP reported by the UE is obtained.

The target UE calculates three Path Loss (PL) ₂ ,PL ₃ ,PL ₄ Pathloss of the target UE and UE2, UE3, UE4 respectively), the maximum value of which is denoted PL _SL For determining the transmit power of the SL-PRS.

In another manner, the target UE may also receive a reference signal sent by the network side device. The reference signal may be an SSB or DL-PRS. And the target UE also receives the transmitting power of the reference signal. The target UE measures the reference signal and determines a corresponding RSRP. Similar to the previous, the target UE determines the path loss PL from the transmit power and the corresponding RSRP _D . Target UE according to PL _D And PL (PL) _SL The transmit power of the SL-PRS is jointly determined.

Example 2: fig. 5 is a second schematic diagram of a power control method of SL-PRS provided in the present application, and referring to fig. 5, it is assumed that a target UE receives positioning reference signals (SL-PRS) transmitted by second UEs (UE 2, UE3 and UE 4), and the target UE measures the SL-PRS and determines a corresponding RSRP, respectively.

Wherein the determination of the second UE may be that the target UE transmits the distance information. And the UE receiving the distance information determines whether the UE is in an effective range according to the distance information. If the distance information is satisfied, the UE determines to send a positioning reference signal to the target UE. In another embodiment, the system predefines a threshold value for RSRP. After receiving the DMRS of the target UE, the second UE determines whether the threshold is satisfied according to the measured RSRP. If the threshold is met, the UE determines to send a positioning reference signal to the target UE. In another embodiment, the threshold value of RSRP is sent by the target UE.

The target UE receives the transmission power P of the positioning reference signal transmitted by the second UE _tx Or the target UE determines the transmission power of the positioning reference signal according to the transmission power value predefined by the system. The target UE determines a path loss between each second UE and the target UE. The path loss is calculated, for example, by:

PL＝P _tx –RSRP _f

wherein P is _tx Transmitting the power of the SL-PRS for the second UE, RSRP _f And determining the RSRP for the target UE according to the SL-PRS transmitted by other UEs. Which may be the result of time-domain filtering the RSRP of the SL-PRS.

Fig. 6 is a schematic structural diagram of a first terminal provided in the present application, as shown in fig. 6, where the first terminal includes a memory 620, a transceiver 600, and a processor 610, where:

a memory 620 for storing a computer program; a transceiver 600 for transceiving data under the control of the processor 610; a processor 610 for reading the computer program in the memory 620 and performing the following operations:

Specifically, the transceiver 600 is used to receive and transmit data under the control of the processor 610. Wherein in fig. 6, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 610 and various circuits of memory represented by memory 620, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. Bus interface 630 provides an interface. Transceiver 600 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, etc. The processor 610 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 610 in performing operations.

The processor 610 may be a central processing unit (Central Processing Unit, CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), or the processor may employ a multi-core architecture.

Optionally, according to the first terminal provided in the embodiment of the present application, the following operations are further performed:

Optionally, according to the first terminal provided in the embodiment of the present application, the determining, according to the first measurement result, the transmission power of the SL-PRS includes:

or,

Optionally, according to the first terminal provided in the embodiment of the present application, the following operations are further performed: receiving the transmission power of the second signal;

or,

Optionally, according to the first terminal provided in the embodiment of the present application, the following operations are further performed: receiving a third signal sent by network side equipment, and determining a third measurement result of the third signal;

Optionally, according to the first terminal provided in the embodiment of the present application, the determining, according to the first measurement result and the third measurement result, the first transmission power of the SL-PRS includes:

Optionally, according to the first terminal provided in the embodiment of the present application, the following operations are further performed: receiving the transmission power of the third signal;

or,

Optionally, according to the first terminal provided in the embodiment of the present application, the first signal or the second signal includes at least one of the following:

SL-PRS；

a synchronous broadcast block SSB;

demodulation reference signal DMRS.

Optionally, according to the first terminal provided in the embodiment of the present application, the first measurement result or the second measurement result includes at least one of the following:

reference signal received power RSRP;

filtered RSRP.

Optionally, according to the first terminal provided in the embodiment of the present application, the second terminal is determined by at least one of the following manners:

Optionally, according to the first terminal provided in the embodiment of the present application, the third signal includes at least one of the following:

downlink positioning reference signals, DL-PRSs;

a synchronous broadcast block SSB;

channel state information reference signal CSI-RS;

demodulation reference signal DMRS.

It should be noted that, the above first terminal provided in this embodiment of the present application can implement all the method steps implemented by the method embodiment in which the execution body is the first terminal, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in this embodiment are omitted herein.

Fig. 7 is a schematic structural diagram of a second terminal provided in the present application, as shown in fig. 7, where the first terminal includes a memory 720, a transceiver 700, and a processor 710, where:

a memory 720 for storing a computer program; a transceiver 700 for transceiving data under the control of the processor 710; a processor 710 for reading the computer program in the memory 720 and performing the following operations:

receiving a first signal sent by a first terminal;

Specifically, the transceiver 700 is used for receiving and transmitting data under the control of the processor 710. Wherein in fig. 7, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 710 and various circuits of memory represented by memory 720, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. Bus interface 730 provides an interface. Transceiver 700 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, etc. The processor 710 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 710 in performing operations.

The processor 710 may be a central processing unit (Central Processing Unit, CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), or may employ a multi-core architecture.

Optionally, according to the second terminal provided in the embodiment of the present application, in a case of sending a second signal to the first terminal, the following operations are further performed:

Optionally, according to the second terminal provided in the embodiment of the present application, the first signal or the second signal includes at least one of the following:

SL-PRS；

a synchronous broadcast block SSB;

demodulation reference signal DMRS.

Optionally, according to the second terminal provided in the embodiment of the present application, the first measurement result or the second measurement result includes at least one of the following:

reference signal received power RSRP;

filtered RSRP.

Optionally, according to the second terminal provided in the embodiment of the present application, the second terminal is determined by at least one of the following manners:

It should be noted that, the second terminal provided in this embodiment of the present application can implement all the method steps implemented by the method embodiment in which the execution body is the second terminal, and can achieve the same technical effects, and specific details of the same parts and beneficial effects as those of the method embodiment in this embodiment are not repeated herein.

Fig. 8 is a schematic structural diagram of a network side device according to an embodiment of the present application, as shown in fig. 8, where the network side device includes a memory 820, a transceiver 800, and a processor 810, where:

a memory 820 for storing a computer program; a transceiver 800 for transceiving data under the control of the processor 810; a processor 810 for reading the computer program in the memory 820 and performing the following operations:

Specifically, the transceiver 800 is configured to receive and transmit data under the control of the processor 810. Wherein in fig. 8, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 810 and various circuits of memory represented by memory 820, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. Bus interface 830 provides an interface. Transceiver 800 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, etc. The processor 810 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 810 in performing operations.

The processor 810 may be a central processing unit (Central Processing Unit, CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA), or a complex programmable logic device (Complex Programmable Logic Device, CPLD), or may employ a multi-core architecture.

Optionally, according to the network side device provided in the embodiment of the present application, the following operations are further performed:

Optionally, according to the network side device provided in the embodiment of the present application, the third signal includes at least one of the following:

downlink positioning reference signals, DL-PRSs;

a synchronous broadcast block SSB;

channel state information reference signal CSI-RS;

demodulation reference signal DMRS.

It should be noted that, the network side device provided in this embodiment of the present application can implement all the method steps implemented by the method embodiment in which the execution body is the network side device, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in this embodiment are omitted.

The embodiment of the application provides a power control method and device of SL-PRS (subscriber line module) for solving the defects that in the prior art, positioning reference signals are not configured and corresponding power control mechanisms are not available, and realizing power control of the SL-PRS. The method and the device are based on the same application, and because the principles of solving the problems by the method and the device are similar, the implementation of the device and the method can be referred to each other, and the repetition is not repeated.

Fig. 9 is one of schematic structural diagrams of a power control device of SL-PRS according to an embodiment of the present application, and referring to fig. 9, the power control device of SL-PRS according to an embodiment of the present application is applied to a first terminal, and includes:

a measurement result determining unit 901, configured to send a first signal to at least one second terminal, and receive a first measurement result fed back by at least one second terminal to the first signal; or, the device is used for receiving a second signal sent by at least one second terminal and determining a second measurement result of the second signal;

a transmit power determining unit 902, configured to determine a first transmit power of the SL-PRS according to the first measurement result, or determine the first transmit power of the SL-PRS according to the second measurement result.

It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution, in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

Optionally, the power control device of the SL-PRS provided according to an embodiment of the present application is further configured to:

Optionally, the apparatus for controlling the power of the SL-PRS according to an embodiment of the present application, where determining the transmission power of the SL-PRS according to the first measurement result includes:

or,

Optionally, the power control device of the SL-PRS provided according to an embodiment of the present application is further configured to: receiving the transmission power of the second signal;

or,

Optionally, the power control device of the SL-PRS provided according to an embodiment of the present application is further configured to: receiving a third signal sent by network side equipment, and determining a third measurement result of the third signal;

Optionally, according to the power control device of the SL-PRS provided in the embodiment of the present application, the determining, according to the first measurement result and the third measurement result, the first transmission power of the SL-PRS includes:

Optionally, the power control device of the SL-PRS provided according to an embodiment of the present application is further configured to: receiving the transmission power of the third signal;

or,

Optionally, according to the power control device of the SL-PRS provided in an embodiment of the present application, the first signal or the second signal includes at least one of:

SL-PRS；

a synchronous broadcast block SSB;

demodulation reference signal DMRS.

Optionally, according to the power control device of SL-PRS provided in an embodiment of the present application, the first measurement result or the second measurement result includes at least one of the following:

reference signal received power RSRP;

filtered RSRP.

Optionally, according to the power control device of SL-PRS provided in an embodiment of the present application, the second terminal is determined by at least one of the following manners:

Optionally, according to the power control device of SL-PRS provided in an embodiment of the present application, the third signal includes at least one of:

downlink positioning reference signals, DL-PRSs;

a synchronous broadcast block SSB;

channel state information reference signal CSI-RS;

demodulation reference signal DMRS.

It should be noted that, the above device provided in the embodiment of the present invention can implement the corresponding method steps implemented in the method embodiment and achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.

Fig. 10 is a second schematic structural diagram of a power control device of SL-PRS according to an embodiment of the present application, and referring to fig. 10, the power control device of SL-PRS according to an embodiment of the present application is applied to a second terminal, and includes:

a first signal receiving unit 1001, configured to receive a first signal sent by a first terminal;

a first measurement result sending unit 1002, configured to determine a first measurement result of the first signal, and send the first measurement result to the first terminal, where the first measurement result is used to determine a first transmission power of SL-PRS;

or, a second signal transmitting unit 1003 configured to transmit a second signal to the first terminal, where the second signal is used to determine a second measurement result of the second signal, and the second measurement result is used to determine a first transmission power of SL-PRS.

Optionally, the power control device of the SL-PRS according to an embodiment of the present application is further configured, in a case where a second signal is sent to the first terminal, to:

SL-PRS；

a synchronous broadcast block SSB;

demodulation reference signal DMRS.

reference signal received power RSRP;

filtered RSRP.

Fig. 11 is a third schematic structural diagram of a power control device of SL-PRS according to an embodiment of the present application, and referring to fig. 11, the power control device of SL-PRS according to an embodiment of the present application is applied to a network side device, and includes:

A third signal transmitting unit 1101, configured to transmit a third signal to the first terminal, where the third signal is used to determine a third measurement result of the third signal, and the third measurement result is used to determine the first transmission power of the SL-PRS.

Optionally, the power control device of the SL-PRS provided according to an embodiment of the present application further performs the following operations:

downlink positioning reference signals, DL-PRSs;

a synchronous broadcast block SSB;

channel state information reference signal CSI-RS;

demodulation reference signal DMRS.

In another aspect, embodiments of the present application further provide a processor readable storage medium storing a computer program, where the computer program is configured to cause the processor to execute the SL-PRS power control method provided in each of the foregoing embodiments.

The processor-readable storage medium may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), semiconductor storage (e.g., ROM, EPROM, EEPROM, nonvolatile storage (NAND FLASH), solid State Disk (SSD)), and the like.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

1. A power control method for a direct link positioning reference signal SL-PRS, applied to a first terminal, comprising:

2. The SL-PRS power control method of claim 1, further comprising:

3. The method of power control of SL-PRS of claim 1, wherein said determining a transmit power of said SL-PRS based on said first measurement result comprises:

Or,

4. The SL-PRS power control method of claim 1, further comprising: receiving the transmission power of the second signal;

or,

5. The SL-PRS power control method according to any one of claims 1 to 4, further comprising: receiving a third signal sent by network side equipment, and determining a third measurement result of the third signal;

6. The method of power control of SL-PRS of claim 5, wherein said determining a first transmit power of said SL-PRS based on said first measurement and said third measurement comprises:

7. The SL-PRS power control method of claim 6, further comprising: receiving the transmission power of the third signal;

or,

8. The SL-PRS power control method of claim 1, wherein the first signal or the second signal comprises at least one of:

SL-PRS；

a synchronous broadcast block SSB;

Demodulation reference signal DMRS.

9. The SL-PRS power control method of claim 1, wherein the first measurement or the second measurement comprises at least one of:

reference signal received power RSRP;

filtered RSRP.

10. The SL-PRS power control method of claim 1, wherein the second terminal is determined by at least one of:

11. The SL-PRS power control method of claim 5, wherein the third signal comprises at least one of:

downlink positioning reference signals, DL-PRSs;

a synchronous broadcast block SSB;

channel state information reference signal CSI-RS;

demodulation reference signal DMRS.

12. A power control method for a cut-through link positioning reference signal SL-PRS, applied to a second terminal, comprising:

receiving a first signal sent by a first terminal;

13. The SL-PRS power control method of claim 12, further comprising, in case of transmitting a second signal to the first terminal:

14. The SL-PRS power control method of claim 12, wherein the first signal or the second signal comprises at least one of:

SL-PRS；

a synchronous broadcast block SSB;

demodulation reference signal DMRS.

15. The SL-PRS power control method of claim 12, wherein the first measurement or the second measurement comprises at least one of:

reference signal received power RSRP;

filtered RSRP.

16. The SL-PRS power control method of claim 12, wherein the second terminal is determined by at least one of:

17. The power control method of the direct link positioning reference signal SL-PRS is characterized by being applied to network side equipment and comprising the following steps:

18. The SL-PRS power control method of claim 17, further comprising:

19. The SL-PRS power control method of claim 17, wherein the third signal comprises at least one of:

downlink positioning reference signals, DL-PRSs;

a synchronous broadcast block SSB;

channel state information reference signal CSI-RS;

demodulation reference signal DMRS.

20. A first terminal comprising a memory, a transceiver, and a processor;

21. The first terminal of claim 20, further performing the operations of:

22. The first terminal of claim 20, wherein the determining the transmit power of the SL-PRS based on the first measurement result comprises:

or,

23. The first terminal of claim 20, further performing the operations of: receiving the transmission power of the second signal;

or,

24. The first terminal according to any of the claims 20 to 23, characterized by further performing the following operations: receiving a third signal sent by network side equipment, and determining a third measurement result of the third signal;

25. The first terminal of claim 14, wherein the determining the first transmit power of the SL-PRS based on the first measurement result and the third measurement result comprises:

26. The first terminal of claim 25, further performing the operations of: receiving the transmission power of the third signal;

or,

27. The first terminal of claim 20, wherein the first signal or the second signal comprises at least one of:

SL-PRS；

a synchronous broadcast block SSB;

demodulation reference signal DMRS.

28. The first terminal of claim 20, wherein the first measurement result or the second measurement result comprises at least one of:

reference signal received power RSRP;

filtered RSRP.

29. The first terminal of claim 20, wherein the second terminal is determined by at least one of:

30. The first terminal of claim 24, wherein the third signal comprises at least one of:

downlink positioning reference signals, DL-PRSs;

a synchronous broadcast block SSB;

channel state information reference signal CSI-RS;

demodulation reference signal DMRS.

31. A second terminal, comprising a memory, a transceiver, and a processor;

receiving a first signal sent by a first terminal;

32. The second terminal according to claim 31, wherein in case of transmitting a second signal to the first terminal, the following operations are also performed:

33. The second terminal according to claim 31, wherein the first signal or the second signal comprises at least one of:

SL-PRS；

a synchronous broadcast block SSB;

demodulation reference signal DMRS.

34. The second terminal of claim 31, wherein the first measurement result or the second measurement result comprises at least one of:

reference signal received power RSRP;

Filtered RSRP.

35. The second terminal of claim 31, wherein the second terminal is determined by at least one of:

36. A network side device, comprising a memory, a transceiver, and a processor;

37. The network-side device of claim 36, further performing the operations of:

38. The network-side device of claim 36, wherein the third signal comprises at least one of:

downlink positioning reference signals, DL-PRSs;

a synchronous broadcast block SSB;

channel state information reference signal CSI-RS;

demodulation reference signal DMRS.

39. A power control apparatus for a cut-through link positioning reference signal SL-PRS, applied to a first terminal, comprising:

40. A power control apparatus for a cut-through link positioning reference signal SL-PRS, applied to a second terminal, comprising:

41. A power control apparatus for a cut-through link positioning reference signal SL-PRS, which is applied to a network side device, and includes:

42. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program for causing a computer to perform the method of any one of claims 1 to 11, or to perform the method of any one of claims 12 to 16, or to perform the method of any one of claims 17 to 19.