WO2024032648A1 - Procédé de commande de puissance pour prs-sl, et terminal, dispositif côté réseau, appareil et support de stockage - Google Patents

Procédé de commande de puissance pour prs-sl, et terminal, dispositif côté réseau, appareil et support de stockage Download PDF

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Publication number
WO2024032648A1
WO2024032648A1 PCT/CN2023/111930 CN2023111930W WO2024032648A1 WO 2024032648 A1 WO2024032648 A1 WO 2024032648A1 CN 2023111930 W CN2023111930 W CN 2023111930W WO 2024032648 A1 WO2024032648 A1 WO 2024032648A1
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WIPO (PCT)
Prior art keywords
prs
measurement result
signal
terminal
power
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PCT/CN2023/111930
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English (en)
Chinese (zh)
Inventor
李辉
任晓涛
达人
任斌
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大唐移动通信设备有限公司
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Publication of WO2024032648A1 publication Critical patent/WO2024032648A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • the present disclosure relates to the field of wireless communication technology, and in particular, to an SL-PRS power control method, terminal, network-side equipment, device and storage medium.
  • the 5G New Radio (NR) air interface defines the uplink positioning reference signal (Sounding Reference Signal-Pos, SRS-Pos). Controlling the transmit power of SRS-Pos helps reduce the uplink interference level of SRS-Pos and solves the problem of near-far effect through power control.
  • the SRS-Pos signal must be sent not only to the base station of this cell, but also to the base station of neighboring cells.
  • SRS-Pos power control in Release 16 (Rel-16) is implemented by estimating path loss based on measurements of downlink signals of neighboring cells.
  • the associated reference signal resources used to estimate downlink path loss may be Synchronization Signal/PBCH Block (SSB) or Downlink Positioning Reference Signal (DownLink-Positioning Reference Signal, DL-PRS) resources .
  • SSB Synchronization Signal/PBCH Block
  • DownLink-Positioning Reference Signal DL-PRS
  • the UE may not be able to successfully measure the path loss of the serving cell or neighboring cells based on the configured SSB or DL-PRS.
  • Rel-16 stipulates that in this case, the UE uses the reference signal resources in the serving cell SSB as the path loss reference signal, that is, the secondary synchronization signal (Secondary Synchronization Signal, SSS) contained in the SSB is used as the path loss reference signal. .
  • Embodiments of the present disclosure provide a power control method, terminal, network side equipment, device and storage medium for SideLink-Positioning Reference Signal (SL-PRS) to solve the problem of positioning that has not yet been solved in related technologies.
  • the configuration of the reference signal does not have the defects of its corresponding power control mechanism to achieve power control of SL-PRS.
  • embodiments of the present disclosure provide a power control method for a direct link positioning reference signal SL-PRS, applied to a first terminal, including:
  • the first transmission power of the SL-PRS is determined according to the first measurement result, or the first transmission power of the SL-PRS is determined according to the second measurement result.
  • the SL-PRS power control method provided according to the embodiment of the present disclosure further includes:
  • the SL-PRS is transmitted according to the first transmission power of the SL-PRS.
  • determining the first transmit power of the SL-PRS according to the first measurement result includes:
  • the first transmit power of the SL-PRS is determined.
  • the SL-PRS power control method provided by embodiments of the present disclosure further includes: receiving the transmit power of the second signal;
  • Determining the first transmit power of the SL-PRS according to the second measurement result includes:
  • the first transmit power of the SL-PRS is determined.
  • the SL-PRS power control method provided by embodiments of the present disclosure further includes: receiving a third signal sent by the network side device, and determining a third measurement result of the third signal;
  • Determining the first transmit power of the SL-PRS according to the first measurement result includes:
  • Determining the first transmit power of the SL-PRS according to the second measurement result includes:
  • the first transmit power of the SL-PRS is determined according to the second measurement result and the third measurement result.
  • the first transmit power of the SL-PRS is determined based on the first measurement result and the third measurement result, include:
  • Determining the first transmit power of the SL-PRS according to the second measurement result and the third measurement result includes:
  • the first transmit power of the SL-PRS is determined according to the maximum value or the minimum value of the fourth transmit power and the third transmit power.
  • the SL-PRS power control method provided by embodiments of the present disclosure further includes: receiving the transmit power of the third signal;
  • Determining the third transmit power of SL-PRS according to the third measurement result includes:
  • the third transmission power of the SL-PRS is determined.
  • the first signal or the second signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • the first measurement result or the second measurement result includes at least one of the following:
  • the second terminal is determined in at least one of the following ways:
  • the second terminal is determined based on the measurement results of the first signal by other terminals.
  • the third signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • embodiments of the present disclosure also provide an SL-PRS power control method, applied to the second terminal, including:
  • send a second signal to the first terminal the second signal is used to determine a second measurement result of the second signal, and the second measurement result is used to determine the first transmission power of the SL-PRS. .
  • the transmission power of the second signal is sent to the first terminal, and the transmission power of the second signal is used to determine the path loss from the first terminal to the second terminal.
  • the first signal or the second signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • the first measurement result or the second measurement result includes at least one of the following:
  • the second terminal is determined in at least one of the following ways:
  • the second terminal is determined based on the measurement results of the first signal by other terminals.
  • embodiments of the present disclosure also provide a power control method for the direct link positioning reference signal SL-PRS, which is applied to network-side equipment, including:
  • a third signal is sent to the first terminal, 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.
  • the SL-PRS power control method provided according to the embodiment of the present disclosure further includes:
  • the transmission power of the third signal is sent to the first terminal, and the transmission power of the third signal is used to determine the path loss from the first terminal to the network side device.
  • the third signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • embodiments of the present disclosure also provide a first terminal, including a memory, a transceiver, and a processor;
  • Memory used to store computer programs
  • transceiver used to send and receive data under the control of the processor
  • processor used to read the computer program in the memory and perform the following operations:
  • the first transmission power of the SL-PRS is determined according to the first measurement result, or the first transmission power of the SL-PRS is determined according to the second measurement result.
  • the SL-PRS is transmitted according to the first transmission power of the SL-PRS.
  • determining the first transmit power of the SL-PRS according to the first measurement result includes:
  • the first transmit power of the SL-PRS is determined.
  • the first terminal further performs the following operations: receiving the transmission power of the second signal;
  • Determining the first transmit power of the SL-PRS according to the second measurement result includes:
  • the first transmit power of the SL-PRS is determined.
  • the first terminal further performs the following operations: receiving a third signal sent by the network side device, and determining a third measurement result of the third signal;
  • Determining the first transmit power of the SL-PRS according to the first measurement result includes:
  • Determining the first transmit power of the SL-PRS according to the second measurement result includes:
  • the first transmit power of the SL-PRS is determined according to the second measurement result and the third measurement result.
  • determining the first transmit power of the SL-PRS according to the first measurement result and the third measurement result includes:
  • Determining the first transmit power of the SL-PRS according to the second measurement result and the third measurement result includes:
  • the first transmit power of the SL-PRS is determined according to the maximum value or the minimum value of the fourth transmit power and the third transmit power.
  • the first terminal further performs the following operations: receiving the transmission power of the third signal;
  • Determining the third transmit power of SL-PRS according to the third measurement result includes:
  • the third transmission power of the SL-PRS is determined.
  • the first signal or the second signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • the first measurement result or the second measurement result includes at least one of the following:
  • the second terminal is determined by at least one of the following methods:
  • the second terminal is determined based on the measurement results of the first signal by other terminals.
  • the third signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • embodiments of the present disclosure also provide a second terminal, including a memory, a transceiver, and a processor;
  • Memory used to store computer programs
  • transceiver used to send and receive data under the control of the processor
  • processor used to read the computer program in the memory and perform the following operations:
  • send a second signal to the first terminal the second signal is used to determine a second measurement result of the second signal, and the second measurement result is used to determine the first transmission power of the SL-PRS. .
  • the following operations are also performed:
  • the transmission power of the second signal is sent to the first terminal, and the transmission power of the second signal is used to determine the path loss from the first terminal to the second terminal.
  • the first signal or the second signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • the first measurement result or the second measurement result includes at least one of the following:
  • the second terminal is determined by at least one of the following methods:
  • the second terminal is determined based on the measurement results of the first signal by other terminals.
  • embodiments of the present disclosure also provide a network side device, including a memory, a transceiver, and a processor;
  • Memory used to store computer programs
  • transceiver used to send and receive data under the control of the processor
  • processor used to read the computer program in the memory and perform the following operations:
  • a third signal is sent to the first terminal, 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.
  • the transmission power of the third signal is sent to the first terminal, and the transmission power of the third signal is used to determine the path loss from the first terminal to the network side device.
  • the third signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • embodiments of the present disclosure also provide a power control device for the direct link positioning reference signal SL-PRS, which is applied to the first terminal and includes:
  • a measurement result determination unit configured to send a first signal to at least one second terminal and receive a first measurement result of the first signal fed back by at least one second terminal; or, to receive at least one second a second signal sent by the terminal, and determining a second measurement result of the second signal;
  • a transmit power determining unit configured to determine the first transmit power of the SL-PRS according to the first measurement result, or to determine the first transmit power of the SL-PRS according to the second measurement result.
  • the SL-PRS power control device provided according to the embodiment of the present disclosure further includes a sending unit for:
  • the SL-PRS is transmitted according to the first transmission power of the SL-PRS.
  • the power control device for SL-PRS provided by embodiments of the present disclosure, in the process of determining the first transmission power of the SL-PRS according to the first measurement result by the transmission power determination unit, Specifically used for:
  • the first transmit power of the SL-PRS is determined.
  • the SL-PRS power control device provided according to the embodiment of the present disclosure further includes a receiving unit configured to: receive the transmit power of the second signal;
  • the transmit power determining unit is specifically configured to:
  • the first transmit power of the SL-PRS is determined.
  • the receiving unit is further configured to: receive a third signal sent by the network side device, and determine a third signal for the third signal. measurement results;
  • the transmission power determination unit is specifically configured to:
  • the transmit power determining unit is specifically configured to:
  • the first transmit power of the SL-PRS is determined according to the second measurement result and the third measurement result.
  • the transmit power determination unit determines the power of the SL-PRS based on the first measurement result and the third measurement result.
  • the first transmission power process is specifically used for:
  • the transmission power determination unit is specifically configured to:
  • the first transmit power of the SL-PRS is determined according to the maximum value or the minimum value of the fourth transmit power and the third transmit power.
  • the receiving unit is further configured to: receive the transmit power of the third signal;
  • the transmit power determining unit is specifically configured to:
  • the third transmission power of the SL-PRS is determined.
  • the first signal or the second signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • the first measurement result or the second measurement result includes at least one of the following:
  • the second terminal is determined by at least one of the following methods:
  • the second terminal is determined based on the measurement results of the first signal by other terminals.
  • the third signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • embodiments of the present disclosure also provide a power control device for the direct link positioning reference signal SL-PRS, which is applied to the second terminal, including:
  • a first signal receiving unit configured to receive the first signal sent by the 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 the SL-PRS The first transmission power;
  • the power control device of the SL-PRS includes: a second signal sending unit, configured to send a second signal to the first terminal, where the second signal is used to determine the power of the first terminal. A second measurement result of the two signals, the second measurement result is used to determine the first transmission power of the SL-PRS.
  • the second signal sending unit when the second signal sending unit sends a second signal to the first terminal, it is also used to:
  • the transmission power of the second signal is sent to the first terminal, and the transmission power of the second signal is used to determine the path loss from the first terminal to the second terminal.
  • the first signal or the second signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • the first measurement result or the second measurement result includes at least one of the following:
  • the second terminal is determined by at least one of the following methods:
  • the second terminal is determined based on the measurement results of the first signal by other terminals.
  • embodiments of the present disclosure also provide a power control device for the direct link positioning reference signal SL-PRS, which is applied to network side equipment, including:
  • a third signal sending unit is configured to send a third signal to the first terminal, 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 SL- The first transmit power of PRS.
  • the SL-PRS power control device provided according to the embodiment of the present disclosure further includes a third power sending module, used for:
  • the transmission power of the third signal is sent to the first terminal, and the transmission power of the third signal is used to determine the path loss from the first terminal to the network side device.
  • the third signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • embodiments of the present disclosure further provide a computer-readable storage medium storing a computer program, the computer program being used to cause the computer to execute the pass-through chain described in the first aspect.
  • an embodiment of the present disclosure further provides a communication device.
  • a computer program is stored in the communication device.
  • the computer program is used to cause the communication device to perform the through-link positioning reference described in the first aspect.
  • an embodiment of the present disclosure further provides a processor-readable storage medium, the processor-readable storage medium stores a computer program, the computer program is used to cause the processor to execute the first step as described above.
  • the power control method of the direct link positioning reference signal SL-PRS described in the first aspect or perform the power control method of the direct link positioning reference signal SL-PRS described in the second aspect, or perform the third third aspect as described above.
  • the power control method of the direct link positioning reference signal SL-PRS described in the aspect is described in the aspect.
  • embodiments of the present disclosure further provide a chip product.
  • a computer program is stored in the chip product.
  • the computer program is used to cause the chip product to perform the through-link positioning reference described in the first aspect.
  • Embodiments of the present disclosure provide a power control method, terminal, network side equipment, device and storage medium for the direct link positioning reference signal SL-PRS, through at least one other UE (second terminal) to the target UE (first terminal). ) feedback measurement results, or the target UE measures the signals of multiple other UEs to determine the SL-PRS transmit power of the target UE, ensuring the coverage of the positioning reference signal and reducing interference to uplink and downlink signals.
  • Figure 1 is one of the flow diagrams of the SL-PRS power control method provided by an embodiment of the present disclosure
  • Figure 2 is a second schematic flowchart of the SL-PRS power control method provided by an embodiment of the present disclosure
  • Figure 3 is a third schematic flowchart of the SL-PRS power control method provided by an embodiment of the present disclosure
  • Figure 4 is one of the schematic diagrams of the power control method of SL-PRS provided by an embodiment of the present disclosure
  • Figure 5 is a second schematic diagram of the SL-PRS power control method provided by an embodiment of the present disclosure.
  • Figure 6 is a schematic structural diagram of a first terminal provided by an embodiment of the present disclosure.
  • Figure 7 is a schematic structural diagram of a second terminal provided by an embodiment of the present disclosure.
  • Figure 8 is a schematic structural diagram of a network side device provided by an embodiment of the present disclosure.
  • Figure 9 is one of the structural schematic diagrams of the power control device of SL-PRS provided by an embodiment of the present disclosure.
  • Figure 10 is a second structural schematic diagram of the power control device of SL-PRS provided by an embodiment of the present disclosure.
  • FIG. 11 is the third structural schematic diagram of the power control device of SL-PRS provided by the embodiment of the present disclosure.
  • the term "and/or” describes the association relationship of associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone. these three situations.
  • the character "/” generally indicates that the related objects are in an "or” relationship.
  • first, second, etc. are only used for descriptive purposes and are used to distinguish similar features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • the term “plurality” refers to two or more than two, and other quantifiers are similar to it.
  • Determining B based on A in this disclosure means that the factor A should be considered when determining B. It is not limited to “B can be determined based on A alone", but also includes: “B is determined based on A and C", “B is determined based on A, C and E", "C is determined based on A, and B is further determined based on C" wait. In addition, it can also include taking A as a condition for determining B, for example, "When A meets the first condition, use the first method to determine B"; another example, "When A meets the second condition, determine B", etc.; another example , "When A meets the third condition, determine B based on the first parameter" and so on.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet Wireless service
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • UMTS Universal mobile telecommunication system
  • WiMAX microwave access
  • 5G New Radio, NR 5G New Radio
  • EPS Evolved Packet System
  • 5GS 5G system
  • EPS Evolved Packet System
  • 5GS 5G system
  • the terminal device involved in the embodiments of the present disclosure may be a device that provides voice and/or data connectivity to users, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc.
  • the name of the terminal device may be different.
  • the terminal device may be called User Equipment (UE).
  • UE User Equipment
  • Wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via the Radio Access Network (RAN).
  • RAN Radio Access Network
  • the wireless terminal equipment can be a mobile terminal equipment, such as a mobile phone (also known as a "cell phone").
  • Wireless terminal equipment can also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, and an access point.
  • remote terminal equipment remote terminal equipment
  • access terminal equipment access terminal
  • user terminal user terminal
  • user agent user agent
  • user device user device
  • the network device involved in the embodiment of the present disclosure may be a base station, and the base station may include multiple cells that provide services for terminals.
  • a base station can also be called an access point, or it can be a device in the access network that communicates with wireless terminal equipment through one or more sectors on the air interface, or it can be named by another name.
  • Network equipment can be used to exchange received air frames with Internet Protocol (IP) packets and act as a router between the wireless terminal equipment and the rest of the access network, which can include the Internet. Protocol (IP) communication network.
  • IP Internet Protocol
  • Network devices also coordinate attribute management of the air interface.
  • the network equipment involved in the embodiments of the present disclosure may be a network equipment (Base Transceiver Station, BTS) in the Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA). ), or it can be a network device (NodeB) in a Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device in a long term evolution (LTE) system (evolutional Node B, eNB or e-NodeB), 5G base station (gNB) in the 5G network architecture (next generation system), or home evolved base station (Home evolved Node B, HeNB), relay node (relay node) , home base station (femto), pico base station (pico), etc., are not limited in the embodiments of the present disclosure.
  • network equipment may include centralized unit (CU) nodes and distributed unit (DU) nodes.
  • the centralized unit and distributed unit may also be arranged geographically separately.
  • Network equipment and terminal equipment can each use one or more antennas for multi-input multi-output (MIMO) transmission.
  • MIMO transmission can be single-user MIMO (Single User MIMO, SU-MIMO) or multi-user MIMO. (Multiple User MIMO,MU-MIMO).
  • MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoding transmission or beamforming transmission, etc.
  • FIG. 1 is one of the flow diagrams of the SL-PRS power control method provided by an embodiment of the disclosure.
  • an embodiment of the disclosure provides a power control method of SL-PRS, and the execution subject may be the first terminal.
  • a target terminal such as a vehicle or other device capable of direct link communication, the method includes:
  • Step 101 Send a first signal to at least one second terminal, and receive a first measurement result of the first signal fed back by at least one second terminal; or, receive a second signal sent by at least one second terminal. , and determine the second measurement result of the second signal;
  • Step 102 Determine the first transmission power of the SL-PRS according to the first measurement result, or determine the first transmission power of the SL-PRS according to the second measurement result.
  • the target terminal sends a first signal, and receives a measurement result of the first signal fed back by at least one second terminal; or, the target terminal receives a second signal sent by at least a second terminal, and determines the first signal.
  • the measurement results of the second signal is used to determine the transmission power of the positioning reference signal, that is, the target terminal determines the transmission power of the SL-PRS based on the first measurement result or the second measurement result.
  • the target terminal uses multicast to send direct link positioning reference signals (SL-PRS) to three second terminals.
  • the second terminals measure the SL-PRS and determine the corresponding reference signal receiving power (RSRP). ), and then feed back the corresponding RSRP measurement results to the target terminal respectively, and the target terminal determines the transmit power of the SL-PRS based on the RSRP measurement results.
  • the target terminal receives positioning reference signals (SL-PRS) sent by four second terminals, the target terminal measures the SL-PRS respectively and determines the corresponding RSRP. Then, the target terminal determines the transmit power of the SL-PRS based on the RSRP measurement results.
  • SL-PRS positioning reference signals
  • the first signal and the second signal are SL-PRS
  • the measurement results of SL-PRS are used to determine the transmission power of SL-PRS, which is equivalent to a process with feedback, that is, the output of the system itself, which in turn Serves as an input that affects the output of the system.
  • the SL-PRS power control method feeds back measurement results to the target UE (first terminal) through at least one other UE (second terminal), or the target UE measures the signals of multiple other UEs, thereby determining the target
  • the transmit power of the UE's SL-PRS ensures the coverage of the positioning reference signal and reduces interference to uplink and downlink signals.
  • the SL-PRS power control method provided according to the embodiment of the present disclosure further includes:
  • the SL-PRS is transmitted according to the first transmission power of the SL-PRS.
  • the target terminal sends the positioning reference signal according to the determined transmission power of the positioning reference signal. For example, after the target terminal determines the transmit power of the SL-PRS based on the RSRP measurement result, the target terminal uses the determined transmit power of the SL-PRS to transmit the direct link positioning reference signal SL-PRS.
  • determining the first transmit power of the SL-PRS according to the first measurement result includes:
  • the first transmit power of the SL-PRS is determined.
  • the target terminal determines the path loss between the target terminal and the plurality of second terminals based on the measurement result of the first signal and the transmission power of the first signal. Select the maximum value of the path loss to determine the transmit power of the positioning reference signal. For example, the target UE calculates the path loss from the target UE to each second UE based on the RSRP fed back by the plurality of second UEs and the transmission power of the SL-PRS of the target UE. Then, the target UE selects a path loss based on the calculated path loss. The maximum value among them determines the transmit power of SL-PRS.
  • the target terminal selects the minimum value among the measurement results of the first signal, and then determines the path loss based on the transmission power of the first signal.
  • the path loss determined at this time is theoretically the path loss between the target terminal and the plurality of second terminals. The maximum value of path loss.
  • the target UE determines the transmit power of SL-PRS based on the determined path loss.
  • the SL-PRS power control method provided by embodiments of the present disclosure further includes: receiving the transmit power of the second signal;
  • Determining the first transmit power of the SL-PRS according to the second measurement result includes:
  • the first transmit power of the SL-PRS is determined.
  • the target terminal receives the transmission power of the second signal, determines the path losses of multiple second terminals based on the measurement results of the second signal, selects the maximum path loss among them, and determines the transmission power of the positioning reference signal. For example, the target UE receives the transmit power of the respective SL-PRS sent by the second terminal, together with the RSRP measured by the target UE, and calculates the path loss from the target UE to each second UE. Then, the target UE calculates the path loss based on the calculated path. loss, select the maximum value to determine the transmit power of SL-PRS.
  • the target terminal receives the transmission power of the second signal, and then determines the path loss based on the minimum value of the measurement results of the second signal, thereby determining the transmission power of the positioning reference signal. For example, the target UE receives the transmit power of the respective SL-PRS sent by the second terminal, together with the minimum value of the RSRP measured by the target UE, and calculates the path loss. Then, the target UE determines the SL-PRS based on the calculated path loss. PRS transmit power.
  • the SL-PRS power control method provided by embodiments of the present disclosure further includes: receiving a third signal sent by the network side device, and determining a third measurement result of the third signal;
  • Determining the first transmit power of the SL-PRS according to the first measurement result includes:
  • Determining the first transmit power of the SL-PRS according to the second measurement result includes:
  • the first transmit power of the SL-PRS is determined according to the second measurement result and the third measurement result.
  • the target terminal also receives the third signal sent by the network side device, and determines the measurement result of the third signal, thereby obtaining the path loss, thereby determining the transmission power of the positioning reference signal. For example, the target terminal determines the transmission power of the alternative positioning reference signal based on 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 based on the transmission power of the alternative positioning reference signal. . Alternatively, the target terminal determines the transmission power of the alternative positioning reference signal based on the measurement result of the second signal and the measurement result of the third signal respectively, and then determines the transmission power of the positioning reference signal based on the transmission power of the alternative positioning reference signal. .
  • the first transmit power of the SL-PRS is determined based on the first measurement result and the third measurement result, include:
  • Determining the first transmit power of the SL-PRS according to the second measurement result and the third measurement result includes:
  • the first transmit power of the SL-PRS is determined according to the maximum value or the minimum value of the fourth transmit power and the third transmit power.
  • the target terminal determines the second transmit power of the SL-PRS and the third transmit power of the SL-PRS respectively based on the measurement results of the first signal and the measurement result of the third signal, and then determines the second transmit power of the SL-PRS from more than one SL-PRS Select the maximum value (to ensure the maximum coverage of the positioning reference signal) or the minimum value (to avoid causing interference to uplink and downlink signals) from the second transmission power of the SL-PRS and the third transmission power of the SL-PRS, and determine the third transmission power of the SL-PRS.
  • the target terminal determines the fourth transmit power of the SL-PRS and the third transmit power of the SL-PRS respectively based on the measurement results of the second signal and the measurement result of the third signal, and then determines the fourth transmit power of the SL-PRS from more than one SL-PRS Select the maximum value (to ensure the maximum coverage of the positioning reference signal) or the minimum value (to avoid causing interference to uplink and downlink signals) from the fourth transmission power and the third transmission power of SL-PRS to determine the first value of the SL-PRS. Transmit power.
  • the SL-PRS power control method provided by embodiments of the present disclosure further includes: receiving the transmit power of the third signal;
  • Determining the third transmit power of SL-PRS according to the third measurement result includes:
  • the third transmission power of the SL-PRS is determined.
  • the target terminal may determine the transmit power of the SL-PRS based on the third measurement result. For example, the target UE receives the transmit power of SSB or DL-PRS sent by the network side device, together with the RSRP measured by the target UE, and calculates the path loss from the target UE to the network side device. Then, the target UE calculates the path loss based on the calculated path loss. Select the maximum value among them to determine the transmit power of SL-PRS.
  • the target terminal receives the transmission power of the network side device, and then determines the path loss based on the minimum value of the measurement results of the third signal, thereby determining the transmission power of the positioning reference signal. For example, the target UE receives the transmit power of its respective SSB sent by the network side device, together with the minimum value of the RSRP measured by the target UE, and calculates the path loss. Then, the target UE determines the SL-PRS based on the calculated path loss. Transmit power.
  • the first signal or the second signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • the first signal or the second signal includes at least one of a direct link positioning reference signal, a synchronization broadcast block (Synchronization Signal/PBCH Block, SSB), and a demodulation reference signal (Demodulation Reference Signal, DMRS). kind.
  • the first signal is a SideLink Positioning Reference Signal (SL-PRS), or the second signal is a Synchronous Broadcast Block (SSB).
  • S-PRS SideLink Positioning Reference Signal
  • SSB Synchronous Broadcast Block
  • the first measurement result or the second measurement result includes at least one of the following:
  • the first measurement result or the second measurement result is the reference signal received power RSRP, or the filtered RSRP.
  • 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.
  • the second terminal is determined in at least one of the following ways:
  • the second terminal is determined based on the measurement results of the first signal by other terminals.
  • 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 it is within the effective range based on the distance information. If the distance information is satisfied, the UE determines to send the positioning reference signal to the target UE, or the UE determines to feed back the measurement result to the target UE. Or, the system predefines the RSRP threshold value. After receiving the signal of the target UE (such as SL-PRS or DMRS), the UE determines whether the threshold value is met based on the measured RSRP. If this threshold is met, the UE determines to feed back the measurement results to the target UE, or the UE determines to send the positioning reference signal to the target UE. The RSRP threshold value may also be sent by the target UE.
  • the third signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • the third signal includes at least one of a positioning reference signal, SSB, channel state information reference signal (Channel State Information-Reference Signal, CSI-RS), and DMRS.
  • a positioning reference signal SSB
  • channel state information reference signal Channel State Information-Reference Signal
  • CSI-RS Channel State Information-Reference Signal
  • DMRS Downlink Signal
  • the third signal is a downlink positioning reference signal (DownLink Positioning Reference Signal, DL-PRS)
  • DL-PRS DownLink Positioning Reference Signal
  • SSB synchronization broadcast block
  • the embodiment of the present disclosure provides a power control method for the direct link positioning reference signal SL-PRS, It is used to solve the defects in related technologies that there is no positioning reference signal configuration and no corresponding power control mechanism to realize power control of SL-PRS.
  • the power control method of the SL-PRS on the second terminal side will be described below. Those skilled in the art can understand that the power control method of the SL-PRS on the second terminal side is different from the power control method of the SL-PRS on the first terminal side. It is corresponding and can achieve the corresponding technical effect.
  • FIG. 2 is a flow diagram of the second schematic flowchart of the SL-PRS power control method provided by an embodiment of the present disclosure.
  • an embodiment of the present disclosure provides a SL-PRS power control method, and the execution subject may be a second terminal.
  • the second UE such as vehicles and other equipment capable of direct link communication, including:
  • Step 201 Receive the first signal sent by the first terminal
  • Step 202 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 the first transmission power of SL-PRS;
  • the method includes:
  • a second signal is sent to the first terminal, the second signal is used to determine a second measurement result of the second signal, and the second measurement result is used to determine the first transmission power of the SL-PRS.
  • the second terminal receives the first signal sent by the target terminal, measures the first signal, obtains the measurement result of the first signal, and then feeds back the first measurement result to the target terminal.
  • the second terminal sends a second signal to the target terminal.
  • 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 second signal The measurement result is used to determine the transmit power of the positioning reference signal, that is, the target terminal determines the transmit power of the SL-PRS based on the first measurement result or the second measurement result.
  • the transmission power of the second signal is sent to the first terminal, and the transmission power of the second signal is used to determine the path loss from the first terminal to the second terminal.
  • the first signal or the second signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • the first measurement result or the second measurement result includes at least one of the following:
  • the second terminal is determined in at least one of the following ways:
  • the second terminal is determined based on the measurement results of the first signal by other terminals.
  • Embodiments of the present disclosure provide a power control method for the direct link positioning reference signal SL-PRS to solve the problem that there is no positioning reference signal configuration in the related technology, and there is no corresponding power control mechanism, and realize the SL-PRS power control method.
  • -Power control of PRS The power control method of SL-PRS on the network device side will be described below. Those skilled in the art can understand that the power control method of SL-PRS on the network device side corresponds to the power control method of SL-PRS on the first terminal side. , can achieve corresponding technical effects.
  • FIG 3 is a third schematic flowchart of the SL-PRS power control method provided by an embodiment of the present disclosure.
  • an embodiment of the present disclosure provides a SL-PRS power control method, and the execution subject may be a network side device.
  • Step 301 Send a third signal to the first terminal.
  • the third signal is used to determine a third measurement result of the third signal.
  • the third measurement result is used to determine the first transmission of the SL-PRS. power.
  • the network device sends a third signal to the target terminal, and the third signal is used by the target terminal to determine the transmission power of the positioning reference signal.
  • the SL-PRS power control method provided according to the embodiment of the present disclosure further includes:
  • the transmission power of the third signal is sent to the first terminal, and the transmission power of the third signal is used to determine the path loss from the first terminal to the network side device.
  • the network device also sends the transmission power information of the third signal to the target terminal.
  • the third signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • FIG. 4 is one of the schematic diagrams of the SL-PRS power control method provided by the embodiment of the present disclosure.
  • the target UE uses multicast to send the positioning reference signal (SL-PRS), and the second UE ( UE2, UE3 and UE4) measure the SL-PRS respectively and determine the corresponding RSRP.
  • the second UE feeds back the corresponding RSRP measurement results to the target UE respectively.
  • the second UE may be determined based on the distance information sent by the target UE. Other UEs that have received the distance information determine whether they are within the effective range based on the distance information. If the distance information is satisfied, for example, the UE is within the valid range determined by the distance information, then the UE determines to feed back the measurement result to the target UE.
  • the system predefines the threshold value of RSRP. After receiving the SL-PRS of the target UE, other UEs determine whether the RSRP meets the threshold value based on the measured RSRP. If this threshold is met, the UE determines to feed back the measurement result to the target UE.
  • the RSRP threshold value is sent by the target UE.
  • the target UE determines the path loss from the target UE to each second UE based on the RSRP fed back by the plurality of second UEs and the transmission power of its SL-PRS.
  • P tx is the power of the target UE to send SL-PRS
  • RSRP f is determined based on the RSRP reported by the second UE.
  • the target UE performs time domain filtering on the RSRP reported by the second UE, and the filtered result is determined as RSRP f ; the other way is that the RSRP reported by the second UE has been time domain filtered, so that RSRP f is RSRP reported by UE.
  • the target UE Based on the three calculated path losses (PL 2 , PL 3 , PL 4 , corresponding to the path losses of the target UE and UE2, UE3, and UE4 respectively), the target UE selects the maximum value expressed as PL SL to determine the SL -The transmit power of the PRS.
  • the target UE may also receive the reference signal sent by the network side device.
  • the reference signal may be SSB or DL-PRS.
  • the target UE also receives the transmission power of the reference signal.
  • the target UE measures the reference signal and determines the corresponding RSRP. Similar to the above, the target UE determines the path loss PLD according to the transmission power and the corresponding RSRP.
  • the target UE jointly determines the transmit power of SL-PRS based on PL D and PL SL .
  • FIG. 5 is a second schematic diagram of the SL-PRS power control method provided by an embodiment of the present disclosure.
  • the target UE receives the positioning reference signal (SL) sent by the second UE (UE2, UE3 and UE4).
  • SL positioning reference signal
  • the target UE measures SL-PRS respectively and determines the corresponding RSRP.
  • the second UE may be determined by the target UE sending distance information.
  • the UE that receives the distance information determines whether it is within the effective range based on the distance information. If the distance information is satisfied, the UE determines to send the positioning reference signal to the target UE.
  • the system predefines the threshold value of RSRP. After receiving the DMRS of the target UE, the second UE determines whether the threshold value is met based on the measured RSRP. If this threshold is met, the UE determines to send the positioning reference signal to the target UE.
  • the RSRP threshold value is sent by the target UE.
  • the target UE receives the transmit power P tx of the positioning reference signal sent by the second UE, or the target UE determines the transmit power of the positioning reference signal according to the transmit power value predefined by the system.
  • P tx is the power of the second UE to send SL-PRS
  • RSRP f is the RSRP determined by the target UE based on the measurement of the SL-PRS sent by other UEs. It may be the result of time domain filtering of the RSRP of the SL-PRS.
  • the target UE Based on the three calculated path losses (PL 2 , PL 3 , PL 4 , corresponding to the path losses of the target UE and UE2, UE3, and UE4 respectively), the target UE selects the maximum value expressed as PL SL to determine the SL -The transmit power of the PRS.
  • the target UE may also receive the reference signal sent by the network side device.
  • the reference signal may be SSB or DL-PRS.
  • the target UE also receives the transmission power of the reference signal.
  • the target UE measures the reference signal and determines the corresponding RSRP. Similar to the above, the target UE determines the path loss PLD according to the transmission power and the corresponding RSRP.
  • the target UE jointly determines the transmit power of SL-PRS based on PL D and PL SL .
  • Figure 6 is a schematic structural diagram of a first terminal provided by an embodiment of the present disclosure.
  • the first terminal includes a memory 620, a transceiver 600, and a processor 610, wherein:
  • Memory 620 is used to store computer programs; transceiver 600 is used to send and receive data under the control of the processor 610; processor 610 is used to read the computer program in the memory 620 and perform the following operations:
  • the first transmission power of the SL-PRS is determined according to the first measurement result, or the first transmission power of the SL-PRS is determined according to the second measurement result.
  • the transceiver 600 is used to receive and send data under the control of the processor 610.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 610 and various circuits of the memory represented by memory 620 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein.
  • Bus interface 630 provides the interface.
  • the transceiver 600 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
  • the processor 610 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 610 when performing operations.
  • the processor 610 may be a 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), the processor can also adopt a multi-core architecture.
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • FPGA field programmable gate array
  • Complex complex programmable logic device
  • CPLD Programmable Logic Device
  • the processor can also adopt a multi-core architecture.
  • the SL-PRS is transmitted according to the first transmission power of the SL-PRS.
  • determining the first transmit power of the SL-PRS according to the first measurement result includes:
  • the first transmit power of the SL-PRS is determined.
  • the first terminal further performs the following operations: receiving the transmission power of the second signal;
  • Determining the first transmit power of the SL-PRS according to the second measurement result includes:
  • the first transmit power of the SL-PRS is determined.
  • the first terminal further performs the following operations: receiving a third signal sent by the network side device, and determining a third measurement result of the third signal;
  • Determining the first transmit power of the SL-PRS according to the first measurement result includes:
  • Determining the first transmit power of the SL-PRS according to the second measurement result includes:
  • the first transmit power of the SL-PRS is determined according to the second measurement result and the third measurement result.
  • determining the first transmit power of the SL-PRS according to the first measurement result and the third measurement result includes:
  • Determining the first transmit power of the SL-PRS according to the second measurement result and the third measurement result includes:
  • the first transmit power of the SL-PRS is determined according to the maximum value or the minimum value of the fourth transmit power and the third transmit power.
  • the first terminal further performs the following operations: receiving the transmission power of the third signal;
  • Determining the third transmit power of SL-PRS according to the third measurement result includes:
  • the third transmission power of the SL-PRS is determined.
  • the first signal or the second signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • the first measurement result or the second measurement result includes at least one of the following:
  • the second terminal is determined by at least one of the following methods:
  • the second terminal is determined based on the measurement results of the first signal by other terminals.
  • the third signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • first terminal provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment in which the execution subject is the first terminal, and can achieve the same technical effect, which will not be discussed here.
  • the parts and beneficial effects in this embodiment that are the same as those in the method embodiment will be described in detail.
  • Figure 7 is a schematic structural diagram of a second terminal provided by an embodiment of the present disclosure.
  • the first terminal includes a memory 720, a transceiver 700, and a processor 710, wherein:
  • Memory 720 is used to store computer programs; transceiver 700 is used to send and receive data under the control of the processor 710; processor 710 is used to read the computer program in the memory 720 and perform the following operations:
  • send a second signal to the first terminal the second signal is used to determine a second measurement result of the second signal, and the second measurement result is used to determine the first transmission power of the SL-PRS. .
  • the transceiver 700 is used to receive and send data under the control of the processor 710.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 710 and various circuits of the memory represented by memory 720 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein.
  • Bus interface 730 provides the interface.
  • the transceiver 700 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
  • the processor 710 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 710 when 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), the processor can also adopt a multi-core architecture.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • CPLD Complex Programmable Logic Device
  • the following operations are also performed:
  • the transmission power of the second signal is sent to the first terminal, and the transmission power of the second signal is used to determine the path loss from the first terminal to the second terminal.
  • the first signal or the second signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • the first measurement result or the second measurement result includes at least one of the following:
  • the second terminal is determined by at least one of the following methods:
  • the second terminal is determined based on the measurement results of the first signal by other terminals.
  • the above-mentioned second terminal provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment in which the execution subject is the second terminal, and can achieve the same technical effect, which will not be discussed here.
  • the parts and beneficial effects in this embodiment that are the same as those in the method embodiment will be described in detail.
  • FIG. 8 is a schematic structural diagram of a network side device provided by an embodiment of the present disclosure.
  • the network side device includes a memory 820, a transceiver 800, and a processor 810, where:
  • Memory 820 is used to store computer programs; transceiver 800 is used to send and receive data under the control of the processor 810; processor 810 is used to read the computer program in the memory 820 and perform the following operations:
  • a third signal is sent to the first terminal, 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.
  • the transceiver 800 is used to receive and send data under the control of the processor 810.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 810 and various circuits of the memory represented by memory 820 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein.
  • Bus interface 830 provides the interface.
  • the transceiver 800 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
  • the processor 810 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 810 when performing operations.
  • the processor 810 may be a 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), the processor can also adopt a multi-core architecture.
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • FPGA field programmable gate array
  • CPLD Complex Programmable Logic Device
  • the transmission power of the third signal is sent to the first terminal, and the transmission power of the third signal is used to determine the path loss from the first terminal to the network side device.
  • the third signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • the above-mentioned network-side device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment in which the execution subject is the network-side device, and can achieve the same technical effect, which will not be discussed here.
  • the parts and beneficial effects in this embodiment that are the same as those in the method embodiment will be described in detail.
  • Embodiments of the present disclosure provide a power control method and device for SL-PRS to solve the problem that in related technologies, there is no positioning reference signal configuration and no corresponding power control mechanism, so as to realize the power control of SL-PRS. .
  • the method and the device are based on the same application concept. Since the principles of the method and the device to solve the problem are similar, the implementation of the device and the method can be referred to each other, and the repeated details will not be repeated.
  • Figure 9 is one of the structural schematic diagrams of the SL-PRS power control device provided by the embodiment of the present disclosure.
  • the SL-PRS power control device provided by the embodiment of the present disclosure is applied to the first terminal and includes:
  • the measurement result determination unit 901 is configured to send a first signal to at least one second terminal, and receive a first measurement result of the first signal fed back by at least one second terminal; or, to receive at least a first signal. A second signal sent by the two terminals, and determining a second measurement result of the second signal;
  • the transmit power determining unit 902 is configured to determine the first transmit power of the SL-PRS according to the first measurement result, or to determine the first transmit power of the SL-PRS according to the second measurement result.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above integrated units can be implemented in the form of hardware or software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a processor-readable storage medium.
  • the technical solution of the present disclosure is essentially or contributes to the relevant technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, It includes several instructions to cause a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code. .
  • the SL-PRS power control device provided according to the embodiment of the present disclosure further includes a sending unit for:
  • the SL-PRS is transmitted according to the first transmission power of the SL-PRS.
  • the power control device for SL-PRS provided by embodiments of the present disclosure, in the process of determining the first transmission power of the SL-PRS according to the first measurement result by the transmission power determination unit, Specifically used for:
  • the first transmit power of the SL-PRS is determined.
  • the SL-PRS power control device provided according to the embodiment of the present disclosure further includes a receiving unit configured to: receive the transmit power of the second signal;
  • the transmit power determining unit is specifically configured to:
  • the first transmit power of the SL-PRS is determined.
  • the receiving unit is further configured to: receive a third signal sent by the network side device, and determine a third signal for the third signal. measurement results;
  • the transmission power determination unit is specifically configured to:
  • the transmit power determining unit is specifically configured to:
  • the first transmit power of the SL-PRS is determined according to the second measurement result and the third measurement result.
  • the transmit power determination unit determines the power of the SL-PRS based on the first measurement result and the third measurement result.
  • the first transmission power process is specifically used for:
  • the transmission power determination unit is specifically configured to:
  • the first transmit power of the SL-PRS is determined according to the maximum value or the minimum value of the fourth transmit power and the third transmit power.
  • the receiving unit is further configured to: receive the transmit power of the third signal;
  • the transmit power determining unit is specifically configured to:
  • the third transmission power of the SL-PRS is determined.
  • the first signal or the second signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • the first measurement result or the second measurement result includes at least one of the following:
  • the second terminal is determined by at least one of the following methods:
  • the second terminal is determined based on the measurement results of the first signal by other terminals.
  • the third signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • Figure 10 is the second structural schematic diagram of the SL-PRS power control device provided by the embodiment of the present disclosure.
  • the SL-PRS power control device provided by the embodiment of the present disclosure is applied to the second terminal and includes:
  • the first signal receiving unit 1001 is used to receive the first signal sent by the first terminal;
  • the first measurement result sending unit 1002 is 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 SL- The first transmit power of PRS;
  • the power control device of the SL-PRS includes:
  • the second signal sending unit 1003 is configured to send a second signal to the first terminal.
  • the second signal is used to determine a second measurement result of the second signal.
  • the second measurement result is used to determine the SL. - the first transmit power of the PRS.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above integrated units can be implemented in the form of hardware or software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a processor-readable storage medium.
  • the technical solution of the present disclosure is essentially or contributes to the relevant technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, It includes several instructions to cause a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code. .
  • the second signal sending unit when the second signal sending unit sends a second signal to the first terminal, it is also used to:
  • the transmission power of the second signal is sent to the first terminal, and the transmission power of the second signal is used to determine the path loss from the first terminal to the second terminal.
  • the first signal or the second signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • the first measurement result or the second measurement result includes at least one of the following:
  • the second terminal is determined by at least one of the following methods:
  • the second terminal is determined based on the measurement results of the first signal by other terminals.
  • Figure 11 is the third structural schematic diagram of the SL-PRS power control device provided by the embodiment of the present disclosure.
  • the SL-PRS power control device provided by the embodiment of the present disclosure is applied to network side equipment, including:
  • the third signal sending unit 1101 is configured to send a third signal to the first terminal.
  • the third signal is used to determine a third measurement result of the third signal.
  • the third measurement result is used to determine the SL. - the first transmit power of the PRS.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above integrated units can be implemented in the form of hardware or software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a processor-readable storage medium.
  • the technical solution of the present disclosure is essentially or contributes to the relevant technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, It includes several instructions to cause a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code. .
  • the SL-PRS power control device provided according to the embodiment of the present disclosure further includes a third power sending module, used for:
  • the transmission power of the third signal is sent to the first terminal, and the transmission power of the third signal is used to determine the path loss from the first terminal to the network side device.
  • the third signal includes at least one of the following:
  • Synchronous Broadcast Block SSB Synchronous Broadcast Block
  • embodiments of the present disclosure also provide a processor-readable storage medium.
  • the processor-readable storage medium stores a computer program.
  • the computer program is used to cause the processor to execute the methods provided by the above embodiments. Power control method of SL-PRS.
  • the processor-readable storage medium may be any available media or data storage device that the processor can access, including but not limited to magnetic storage (such as floppy disks, hard disks, tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor memories (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)), etc.
  • magnetic storage such as floppy disks, hard disks, tapes, magneto-optical disks (MO), etc.
  • optical storage such as CD, DVD, BD, HVD, etc.
  • semiconductor memories such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)
  • embodiments of the present disclosure may be provided as methods, systems, or computer program products. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment that combines software and hardware aspects. Furthermore, the present disclosure 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) embodying computer-usable program code therein.
  • a computer-usable storage media including, but not limited to, magnetic disk storage, optical storage, and the like
  • processor-executable instructions may also be stored in a processor-readable memory that causes a computer or other programmable data processing apparatus to operate in a particular manner, such that the generation of instructions stored in the processor-readable memory includes the manufacture of the instruction means product, the instruction device implements the function specified in one process or multiple processes in the flow chart and/or one block or multiple blocks in the block diagram.
  • processor-executable instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby causing the computer or other programmable device to
  • the instructions that are executed provide steps for implementing the functions specified in a process or processes of the flowchart diagrams and/or a block or blocks of the block diagrams.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente divulgation concerne un procédé de commande de puissance pour un signal de référence de positionnement de liaison latérale (PRS-SL), et un terminal, un dispositif côté réseau, un appareil et un support de stockage. Le procédé comprend les étapes suivantes : envoi d'un premier signal à au moins un second terminal, et réception d'un premier résultat de mesure du premier signal qui est renvoyé par l'au moins un second terminal ; ou, réception d'un second signal envoyé par l'au moins un second terminal, et détermination d'un second résultat de mesure du second signal ; et détermination d'une première puissance d'envoi d'un PRS-SL selon le premier résultat de mesure, ou, détermination de la première puissance d'envoi du PRS-SL selon le second résultat de mesure.
PCT/CN2023/111930 2022-08-12 2023-08-09 Procédé de commande de puissance pour prs-sl, et terminal, dispositif côté réseau, appareil et support de stockage WO2024032648A1 (fr)

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CN202210969112.2 2022-08-12
CN202210969112.2A CN117641549A (zh) 2022-08-12 2022-08-12 Sl-prs的功率控制方法、终端、网络侧设备、装置及存储介质

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111148205A (zh) * 2018-11-02 2020-05-12 华为技术有限公司 发送功率的确定方法和装置
US20200382978A1 (en) * 2019-05-30 2020-12-03 Qualcomm Incorporated Maximum number of path loss or uplink spatial transmit beam reference signals for downlink or uplink positioning reference signals
CN112188622A (zh) * 2019-07-03 2021-01-05 华为技术有限公司 一种协作传输方法及通信装置
CN113382469A (zh) * 2020-02-25 2021-09-10 上海诺基亚贝尔股份有限公司 针对定位参考信号的发射功率控制
CN114339795A (zh) * 2020-09-30 2022-04-12 维沃移动通信有限公司 功率控制方法、装置及终端设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111148205A (zh) * 2018-11-02 2020-05-12 华为技术有限公司 发送功率的确定方法和装置
US20200382978A1 (en) * 2019-05-30 2020-12-03 Qualcomm Incorporated Maximum number of path loss or uplink spatial transmit beam reference signals for downlink or uplink positioning reference signals
CN112188622A (zh) * 2019-07-03 2021-01-05 华为技术有限公司 一种协作传输方法及通信装置
CN113382469A (zh) * 2020-02-25 2021-09-10 上海诺基亚贝尔股份有限公司 针对定位参考信号的发射功率控制
CN114339795A (zh) * 2020-09-30 2022-04-12 维沃移动通信有限公司 功率控制方法、装置及终端设备

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