WO2024032786A1 - Procédé de commande de puissance pour liaison latérale, et terminal - Google Patents

Procédé de commande de puissance pour liaison latérale, et terminal Download PDF

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Publication number
WO2024032786A1
WO2024032786A1 PCT/CN2023/112661 CN2023112661W WO2024032786A1 WO 2024032786 A1 WO2024032786 A1 WO 2024032786A1 CN 2023112661 W CN2023112661 W CN 2023112661W WO 2024032786 A1 WO2024032786 A1 WO 2024032786A1
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WIPO (PCT)
Prior art keywords
power
maximum
transmit power
occupied
psd
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PCT/CN2023/112661
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English (en)
Chinese (zh)
Inventor
李萍
纪子超
Original Assignee
维沃移动通信有限公司
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Priority claimed from CN202310457592.9A external-priority patent/CN117596655A/zh
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2024032786A1 publication Critical patent/WO2024032786A1/fr

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Classifications

    • 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
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets

Definitions

  • the present application belongs to the field of communication technology, and specifically relates to a side-link power control method and a terminal.
  • SL Side Link
  • PCMAX power spectral density
  • Embodiments of the present application provide a side-link power control method and terminal, which can solve the problem of how to perform power control based on PSD conditions.
  • a side-link power control method including:
  • the terminal determines the power control information of the channel or signal in the side link based on the target information
  • the target information includes at least one of the following: a first maximum transmission power allowed by the terminal, a first maximum transmission power based on a power spectral density PSD condition allowed by the terminal, a second maximum transmission power based on a PSD condition, congestion
  • the fourth maximum transmit power is the minimum value of the first maximum transmit power allowed by the terminal and the second maximum transmit power
  • the first power is based on path loss, the third maximum transmit power
  • a side-link power control device including:
  • a processing module configured to determine power control information of the channel or signal in the side link based on the target information
  • the target information includes at least one of the following: a first maximum transmission power allowed by the terminal, a first maximum transmission power based on a power spectral density PSD condition allowed by the terminal, a second maximum transmission power based on a PSD condition, congestion
  • the fourth maximum transmit power is the minimum value of the first maximum transmit power allowed by the terminal and the second maximum transmit power
  • the first power is based on path loss, the third maximum transmit power
  • a terminal in a third aspect, includes a processor and a memory.
  • the memory stores programs or instructions that can be run on the processor.
  • the program or instructions are executed by the processor, the following implementations are implemented: The steps of the method described in one aspect.
  • a terminal including a processor and a communication interface, wherein the processor is configured to determine power control information of a channel or signal in a side link based on target information;
  • the target information includes at least one of the following: The first maximum transmit power allowed by the terminal, the first maximum transmit power allowed by the terminal based on the power spectral density PSD condition, the second maximum transmit power based on the PSD condition, based on the transmission priority and channel busy ratio under congestion control
  • the fourth The maximum transmit power is the minimum value of the first maximum transmit power and the second maximum transmit power allowed by the terminal; the first power is based on path loss, the first maximum transmit power and the third maximum transmit power.
  • the transmit power of the channel or signal obtained by at least one of the transmit power.
  • a communication system including: a plurality of terminals.
  • the terminals may be configured to perform the steps of the side-link power control method as described in the first aspect.
  • the plurality of terminals are connected through side links. road communication.
  • a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented.
  • a chip in a seventh aspect, includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the method described in the first aspect. .
  • a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the method described in the first aspect Steps of side-link power control method.
  • the terminal determines the power control information of the channel or signal in the side link based on target information.
  • the target information includes at least one of the following: the first maximum transmit power allowed by the terminal, and the power spectral density-based PSD condition allowed by the terminal.
  • the first maximum transmit power, the second maximum transmit power based on PSD conditions, the third maximum transmit power based on transmission priority and channel busy ratio CBR level under congestion control, the fourth maximum transmit power, the first power, physical side chain The maximum transmission number of PSFCHs on the channel feedback channel, the first number of PSFCHs that need to be transmitted simultaneously, and the priority of PSFCHs; the fourth maximum transmission power is the minimum of the first maximum transmission power and the second maximum transmission power allowed by the terminal; One power is based on the path loss, the first maximum transmit power and the third maximum transmit power.
  • the transmission power of the channel or signal obtained by one less item realizes side link power control under the constraints of PSD conditions.
  • Figure 1 is a structural diagram of a wireless communication system applicable to the embodiment of the present application.
  • Figure 2 is a schematic diagram of interleaved RBs provided by an embodiment of the present application.
  • Figure 3 is a schematic diagram of a side-link communication scenario provided by an embodiment of the present application.
  • Figure 4 is one of the schematic flow diagrams of the side link power control method provided by the embodiment of the present application.
  • Figure 5 is one of the structural schematic diagrams of a side-link power control device provided by an embodiment of the present application.
  • Figure 6 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 7 is a schematic diagram of the hardware structure of a terminal provided by an embodiment of the present application.
  • first, second, etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and “second” are distinguished objects It is usually one type, and the number of objects is not limited.
  • the first object can be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the related objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced, LTE-A Long Term Evolution
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency Division Multiple Access
  • NR New Radio
  • FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12.
  • the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a palmtop computer, a netbook, or a super mobile personal computer.
  • Tablet Personal Computer Tablet Personal Computer
  • laptop computer laptop computer
  • PDA Personal Digital Assistant
  • PDA Personal Digital Assistant
  • UMPC ultra-mobile personal computer
  • MID Mobile Internet Device
  • AR augmented reality
  • VR virtual reality
  • PUE wearable devices
  • VUE vehicle-mounted equipment
  • PUE pedestrian terminals
  • PUE smart homes
  • home equipment with wireless communication functions such as refrigerators, TVs, washing machines or furniture, etc.
  • PC personal computers
  • teller machines or self-service machines can Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. .
  • the network side device 12 may include an access network device or a core network device, where the access network device 12 may also be called a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or Wireless access network unit.
  • the access network device 12 may include a base station, a WLAN access point or a WiFi node, etc.
  • the base station may be called a Node B, an evolved Node B (eNB), an access point, a Base Transceiver Station (BTS), a radio Base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B, Home Evolved Node B, Transmitting Receiving Point (TRP) or all
  • eNB evolved Node B
  • BTS Base Transceiver Station
  • BSS Basic Service Set
  • ESS Extended Service Set
  • Home Node B Home Evolved Node B
  • TRP Transmitting Receiving Point
  • Core network equipment may include but is not limited to at least one of the following: core network nodes, core network functions, mobility management entities (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Service Discovery function (Edge Application Server Discovery Function, EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), centralized network configuration ( Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (Local NEF, or L-NEF), Binding Support Function (Binding Support Function, BSF), application function (Application Function, AF), etc.
  • MME mobility management entities
  • AMF Access and Mobility Management Function
  • SMF Session Management Function
  • UPF User Plane Function
  • PCF Policy Control Function
  • unlicensed frequency bands can operate in the 5GHz, 37GHz and 60GHz frequency bands. Since unlicensed frequency bands are shared by multiple radio access technologies (Radio Acess Technology, RAT), such as wireless fidelity WiFi, radar, LTE-licensed assisted access (LAA), in some areas, unlicensed frequency bands Frequency bands must comply with corresponding rules when used to ensure that all devices can use the resource fairly. For example, rules such as Listen Before Talk (LBT) and Maximum Channel Occupancy Time (MCOT).
  • LBT Listen Before Talk
  • MCOT Maximum Channel Occupancy Time
  • a transmission node When a transmission node needs to send information, it needs to perform LBT first and perform power detection (ED) on surrounding nodes. When the detected power is lower than a threshold, the channel is considered idle and the transmission node can to send. Otherwise, the channel is considered busy and the transmitting node cannot send.
  • the transmission node can be a base station, terminal, WiFi access point (AccessPoint, AP), etc. After the transmission node starts transmitting, the occupied channel time COT cannot exceed MCOT.
  • Occupied Channel Bandwidth (OCB) rules in the unlicensed frequency band, the transmission node must occupy at least 70% (60GHz) or 80% (5GHz) of the entire frequency band during each transmission. According to the transmission power requirements (Transmit power requirements), in the unlicensed frequency band, the transmission power of the transmission node in each transmission must meet the PSD limit.
  • LBT LBT
  • Category 1 LBT means that the sending node does not perform LBT, that is, no LBT or immediate transmission.
  • Category 2 LBT is one-shot LBT, that is, the node performs an LBT before transmission. If the channel is empty, it will transmit, and if the channel is busy, it will not transmit.
  • Category 4 LBT is a channel listening mechanism based on back-off. When the transmission node detects that the channel is busy, it backs off and continues listening until it detects that the channel is empty.
  • Category 4 LBT contains multiple priorities. For each priority, the maximum channel occupancy time is different.
  • gNB or UE On unlicensed frequency bands, gNB or UE also needs to perform channel listening before transmitting on the activated BWP.
  • the bandwidth of BWP is greater than 20MHz, considering the coexistence problem with WiFi and other nodes, the listening subband (LBT subband) or RB set (RB set) is used to listen to the channel.
  • the size of each RB set is approximately 20MHz, depending on the size of the guard band between adjacent RB sets.
  • the BWP bandwidth is 80MHz
  • gNB or UE needs to listen on 4 RB sets, and then perform data transmission on all RB sets where the channel is empty.
  • enhanced licensed spectrum assisted access In uplink transmission, in order to solve the problem of occupied channel bandwidth (Occupied Channel Bandwidth, OCB), enhanced licensed spectrum assisted access (Enhanced Licensed Assisted Access, eLAA) introduces interlaced RB allocation. 100 RBs on a 20MHz bandwidth are evenly divided into 10 interlaces. Each interlace contains 10 equally spaced PRBs, as shown in Figure 3. Interweave 0 contains RB 0,10,20...90.
  • a UE can be assigned to one or more interlaces. In NRU, each carrier has a different number of interlaces according to different SCS.
  • the number of PRBs of the carrier and the number of interlaces is ⁇ m, M+m, 2M+m, 3M+m,... ⁇ .
  • interlace m ⁇ 0,1,...,M-1 ⁇ , M is the number of interlaces determined according to different SCS. The specific values are shown in Table 1 below:
  • the side link in the LTE system communicates based on broadcast and can be used to support the Internet of Vehicles. (vehicle to everything, V2X) basic security communication, but is not suitable for other more advanced V2X services.
  • V2X vehicle to everything
  • the 5G NR system supports more advanced side-link transmission designs, such as unicast, multicast or multicast, etc., thereby supporting more comprehensive service types.
  • the side-link communication system is shown in Figure 3.
  • FIG. 4 is one of the schematic flow charts of the side link power control method provided by the embodiment of the present application. As shown in Figure 4, the method provided by this embodiment includes:
  • Step 101 The terminal determines the power control information of the channel or signal in the side link based on the target information
  • the target information includes at least one of the following: the first maximum transmission power allowed by the terminal, the first maximum transmission power allowed by the terminal based on the power spectral density PSD condition, the second maximum transmission power PCMAX,PSD based on the PSD condition, and under congestion control
  • the third maximum transmission power P CMAX,CBR based on the transmission priority and channel busy ratio CBR level
  • the fourth maximum transmission power the first power, the maximum number of transmissions of the Physical Sidelink Feedback Channel (PSFCH),
  • PSFCH Physical Sidelink Feedback Channel
  • the fourth maximum transmission power is the minimum of the first maximum transmission power and the second maximum transmission power allowed by the terminal
  • the first power is based on path loss, the first The transmit power of the channel or signal obtained by at least one of the maximum transmit power and the third maximum transmit power.
  • the terminal determines the power control information of the channel or signal based on the target information.
  • the power control information includes, for example, the transmission power, transmission quantity, etc. of the channel or signal.
  • the first maximum transmit power may include the first maximum transmit power PCMAX allowed by the terminal and/or the first maximum transmit power PCMAX ′ allowed by the terminal based on the PSD condition.
  • the fourth maximum transmit power is the minimum value of PCMAX and PCMAX,PSD .
  • the first power is the transmission power of the channel or signal obtained based on at least one of path loss, PCMAX , PCMAX ' and PCMAX,CBR .
  • the transmit power of PSSCH and PSFCH may be selected from the smaller value of PCMAX , PCMAX ', PCMAX,CBR , PCMAX,PSD , and the first power.
  • the terminal determines the power control information of the channel or signal in the side link based on the target information, thereby realizing side link power control under PSD conditions.
  • At least one of the first maximum transmit power, the second maximum transmit power and the third maximum transmit power based on the PSD condition is obtained based on at least one of the following granularities: serving cell, carrier, bandwidth part BWP, resource Pool, resource block RB set, time slot.
  • step 101 can be implemented in the following ways:
  • the terminal determines the transmit power of the physical side link shared channel PSSCH based on the target information; the first power is the transmit power of the PSSCH obtained based on at least one of path loss, first maximum transmit power, and third maximum transmit power.
  • the target information includes at least one of the following: the first maximum transmit power PCMAX allowed by the terminal, the terminal allowed The first maximum transmit power PCMAX ′, the second maximum transmit power PCMAX,PSD , the third maximum transmit power PCMAX,CBR and the first power based on the PSD condition are allowed.
  • the first power is obtained based on the following formula: min(P PSSCH,D (i),P PSSCH,SL (i));
  • P O,D and P O,SL are respectively the basic operating point (nominal power offset) of the transmit power based on downlink and sidelink path loss power control;
  • P O_nominal,D and P O_nominal,SL are respectively based on downlink and sidelink path loss power control.
  • ⁇ D and ⁇ SL are the downlink and sidelink path loss compensation factors respectively;
  • PL D and PL SL are the downlink and sidelink path losses estimated by the terminal respectively;
  • P CMAX is the first maximum transmission power allowed by the terminal
  • P MAX is the third maximum transmission power
  • PCMAX in the above formula can also be replaced by PCMAX ′.
  • the terminal uses the minimum value in the above target information as the transmit power of the PSSCH.
  • the terminal compares the power of at least one of the following, and takes the smaller value as the transmit power of PSSCH: PCMAX , PCMAX ', PCMAX,PSD , PCMAX,CBR , and the first power.
  • the target information includes the first maximum transmit power and the first power based on the PSD condition
  • the minimum value of the first maximum transmit power and the first power based on the PSD condition is used as the transmit power of the PSSCH.
  • the target information includes the first maximum transmission power, the third maximum transmission power and the first power based on the PSD condition
  • the minimum of the first maximum transmission power, the third maximum transmission power and the first power based on the PSD condition is used.
  • the value is used as the transmit power of PSSCH.
  • the minimum value among the first maximum transmission power, the second maximum transmission power and the first power allowed by the terminal is taken as PSSCH transmit power.
  • the target information includes the first maximum transmission power, the second maximum transmission power, the third maximum transmission power and the first power allowed by the terminal, the first maximum transmission power, the second maximum transmission power allowed by the terminal, The minimum value of the third maximum transmit power and the first power is used as the transmit power of PSSCH.
  • the method of calculating the transmit power of the PSSCH based on PCMAX ′ and the first power, or based on PCMAX ′, PCMAX, CBR and the first power may be to compare PCMAX ′ and the first power, or compare PCMAX ′ and P CMAX, CBR and the first power, the smaller value is the transmit power of PSSCH.
  • the method of calculating the transmission power of PSSCH can be to compare PCMAX , PCMAX, PSD and the first power, or to compare PCMAX , PCMAX, CBR , PCMAX, PSD and the first power, and take the smaller value as the transmission power of PSSCH. power.
  • At least one of the first maximum transmit power, the second maximum transmit power and the third maximum transmit power based on the PSD condition is obtained based on at least one of the following:
  • PSD conditions frequency domain resources occupied by PSSCH
  • the PSD condition means that the transmit power does not exceed Y per X unit (eg MHz) width.
  • frequency domain resources include at least one of the following:
  • At least one interlace at least one sub-channel, at least one physical resource block PRB, and at least one RB set.
  • the first maximum transmit power allowed by the terminal is the minimum value of the first maximum transmit power determined based on the eighth information and the first maximum transmit power based on the PSD condition.
  • the eighth information includes at least one of the following:
  • Power management maximum power reduction (power management maximum power reduction);
  • PCMAX may also be updated to the minimum value of PCMAX ′ determined based on PSD and the already determined PCMAX .
  • the first maximum transmit power based on the PSD condition At least one of the second maximum transmit power and the third maximum transmit power is obtained based on the frequency domain resource width occupied by the PSSCH and the maximum transmit power Y within each Z unit width.
  • the maximum transmit power per Z unit width is Y, which may be determined by higher layer configuration or the terminal.
  • the maximum transmit power per unit width can be calculated according to the maximum transmit power per Z unit width being Y.
  • the first object includes at least one of resource pool, SL BWP, and PSSCH.
  • the number of consecutive PRBs or the maximum number of consecutive PRBs, N1 PRB is less than or equal to N2 PRB .
  • the following methods can be used:
  • the first maximum transmission power and the second maximum transmission power based on the PSD condition At least one of the power and the third maximum transmit power is obtained based on the maximum transmit power Y per Z unit width and the first information.
  • the first information includes at least one of the following: the number of interleaves occupied by the PSSCH, each interlace The number of PRBs occupied, the number of REs occupied by each PRB, and the subcarrier spacing SCS of the first object.
  • the Z unit width is the frequency domain resource width occupied by N1 PRB PRBs.
  • the first object includes: at least one of a resource pool, side link partial bandwidth SL BWP, and PSSCH.
  • the maximum transmit power per Z unit width being Y
  • the maximum transmit power per 1 unit width can be calculated.
  • the frequency domain resource width occupied by PSSCH is N units.
  • the maximum transmit power of N unit width can be calculated, which is P CMAX ′/P CMAX,PSD /P CMAX,CBR. .
  • the first maximum transmission power and the second maximum transmission power based on the PSD condition At least one of the power and the third maximum transmit power is obtained based on the maximum transmit power Y of every N1 PRB PRBs and second information.
  • the second information includes at least one of the following: the number of interlaces occupied by PSSCH and each The number of PRBs occupied by interleaving.
  • the maximum transmit power of every N1 PRBs is Y, which can be determined by high-layer configuration or the terminal.
  • the maximum transmit power of each PRB can be calculated based on the maximum transmit power of each N1 PRB PRB. Y, the maximum transmit power of each PRB can be calculated based on at least one of the number of interlaces occupied by PSSCH and the number of PRBs occupied by each interlace.
  • the PSSCH occupied The number of PRBs is N3 PRB , then the maximum transmit power of N3 PRB PRBs is PCMAX ′/ PCMAX,PSD / PCMAX,CBR .
  • the following methods can be used:
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition
  • At least one of the transmit power and the third maximum transmit power is obtained based on the maximum transmit power Y per Z unit width and third information.
  • the third information includes at least one of the following: the number of sub-channels occupied by the PSSCH, each The number of PRBs occupied by the subchannel, the number of REs occupied by each PRB, and the subcarrier spacing SCS of the first object.
  • the Z unit width is the frequency domain resource width occupied by N4 PRB PRBs.
  • the maximum transmit power per 1 unit can be calculated based on the maximum transmit power per Z unit being Y. According to the number of sub-channels occupied by PSSCH and the number of PRBs occupied by each sub-channel, the number of PRBs occupied by PSSCH can be obtained. Each The number of REs occupied by PRB and at least one item in the SCS of the first object can be obtained. The frequency domain resource width occupied by PSSCH is N units. Then the maximum transmit power of N unit width can be calculated, which is P CMAX ′/P CMAX ,PSD /P CMAX,CBR .
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition
  • At least one of the transmit power and the third maximum transmit power is obtained based on the maximum transmit power Y of every N4 PRB PRBs and fourth information.
  • the fourth information includes at least one of the following: the number of subchannels occupied by the PSSCH and The number of PRBs occupied by each subchannel.
  • the maximum transmit power of every N4 PRBs is Y, which can be determined by high-layer configuration or the terminal.
  • the maximum transmit power of each PRB can be calculated according to the maximum transmit power of each N4 PRB PRB.
  • the number of sub-channels occupied by PSSCH and the number of PRBs occupied by each sub-channel can be obtained.
  • the number of PRBs occupied by PSSCH is N6 PRB , then the maximum transmit power of N6 PRB PRBs is PCMAX ′/ PCMAX,PSD / PCMAX,CBR .
  • the following methods can be used:
  • the first maximum transmission power and the second maximum transmission power based on the PSD condition At least one of the power and the third maximum transmit power is obtained based on the maximum transmit power Y per Z unit width and the fifth information.
  • the fifth information includes at least one of the following: the number of PRBs occupied by PSSCH, the number of PRBs occupied by each PRB.
  • the number of REs occupied by the first object is the subcarrier spacing SCS.
  • the Z unit width is the frequency domain resource width occupied by N7 PRB PRBs.
  • the maximum transmit power per unit width can be calculated based on the maximum transmit power per Z unit width being Y. According to the number of PRBs occupied by PSSCH, the number of REs occupied by each PRB, at least one of the SCS of the first object It can be obtained that the frequency domain resource width occupied by PSSCH is N units, and the maximum transmit power of N unit width can be calculated as PCMAX ′/ PCMAX,PSD / PCMAX,CBR .
  • the first maximum transmission power and the second maximum transmission power based on the PSD condition At least one of the power and the third maximum transmit power is obtained based on the maximum transmit power Y per N7 PRB PRBs and the number of PRBs occupied by the PSSCH.
  • the maximum transmit power of every N7 PRBs is Y, which can be determined by high-layer configuration or the terminal.
  • the maximum transmit power of each PRB can be calculated based on the maximum transmit power of every N7 PRB PRBs being Y. Then the maximum transmit power of the N9 PRB PRBs occupied by the PSSCH is P CMAX ′/P CMAX,PSD /P CMAX, CBR .
  • the following methods can be used:
  • the first maximum transmit power based on the PSD condition, the At least one of the second maximum transmit power and the third maximum transmit power is obtained based on the maximum transmit power Y per Z unit width and the sixth information.
  • the sixth information includes at least one of the following: the number of RB sets occupied by the PSSCH , the number of PRBs occupied by each RB set, the number of REs occupied by each PRB, and the subcarrier spacing SCS of the first object;
  • the Z unit width is the frequency domain resource width occupied by N9 PRB PRBs.
  • the maximum transmit power per unit width can be calculated based on the maximum transmit power per Z unit width being Y. According to the number of RB sets occupied by PSSCH, the number of PRBs occupied by each RB set, and the RE occupied by each PRB Number, at least one item in the SCS of the first object can be obtained that the frequency domain resource width occupied by PSSCH is N units, then the maximum transmit power of N unit width can be calculated, which is P CMAX ′/P CMAX, PSS /P CMAX, CBR .
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition
  • At least one of the transmit power and the third maximum transmit power is obtained based on the maximum transmit power Y of every N10 PRB PRBs and the seventh information.
  • the seventh information includes at least one of the following: the number of RB sets occupied by PSSCH, The number of PRBs occupied by each RB set.
  • the maximum transmit power of every N10 PRBs is Y, which can be determined by high-layer configuration or the terminal.
  • the maximum transmit power of each PRB can be calculated based on the maximum transmit power of PRBs per N10 PRBs , which is Y. According to the number of RB sets occupied by PSSCH and the number of PRBs occupied by each RB set, the number of PRBs occupied by PSSCH is N12 PRB , then the maximum transmit power of N12 PRB PRBs is PCMAX ′/ PCMAX,PSD / PCMAX,CBR .
  • the first maximum transmission power and the second maximum transmission power based on the PSD condition At least one of the power and the third maximum transmit power is obtained based on the frequency domain resource width occupied by the PSSCH and the maximum transmit power Y within each X unit width.
  • the PSD condition limits the maximum transmit power per MHz to Y
  • the continuous frequency domain resources in the PSSCH exceed 1 MHz
  • the maximum transmit power of the PSSCH is limited by the maximum transmit power per MHz to Y.
  • the maximum transmit power per X unit width is Y, which can be determined by high-level configuration or the terminal.
  • the following methods can be used:
  • the first maximum transmit power, the second maximum transmit power and the third maximum transmit power based on the PSD condition At least one of the transmit powers is obtained based on the maximum transmit power Y per X unit width and the first information.
  • the first information includes at least one of the following: the number of interleaves occupied by PSSCH, the number of PRBs occupied by each interlace, the number of REs occupied by each PRB, and the subcarrier spacing SCS of the first object.
  • the maximum transmit power per 1 unit can be calculated based on the maximum transmit power per unit width of Number, at least one item in the SCS of the first object can be obtained.
  • the frequency domain resource width occupied by PSSCH is N units. Then the maximum transmit power of N units can be calculated, which is P CMAX ′/P CMAX,PSD /P CMAX,CBR. .
  • the first maximum transmit power, the second maximum transmit power and the third maximum transmit power based on the PSD condition At least one item of the transmit power is obtained based on the maximum transmit power Y of every N2 PRB PRBs and second information.
  • the second information includes at least one of the following: the number of interleaves occupied by PSSCH and the PRBs occupied by each interlace. number.
  • the maximum transmit power of every N2 PRB PRBs is Y, which can be determined by high-layer configuration or the terminal.
  • the maximum transmit power of each PRB can be calculated based on the maximum transmit power of each N2 PRB PRB. According to the number of interlaces occupied by PSSCH and the number of PRBs occupied by each interlace, the number of PRBs occupied by PSSCH is N3 PRB . , then the maximum transmit power of N3 PRB PRBs is PCMAX ′/ PCMAX,PSD / PCMAX,CBR .
  • the following methods can be used:
  • the first maximum transmit power, the second maximum transmit power and the third maximum transmit power based on the PSD condition At least one of the maximum transmit power is obtained based on the maximum transmit power Y per unit width of The number of PRBs, the number of REs occupied by each PRB, and the subcarrier spacing SCS of the first object.
  • the maximum transmit power per 1 unit width can be calculated based on the maximum transmit power per unit width of The number of PRBs, the number of REs occupied by each PRB, and at least one item in the SCS of the first object can be obtained.
  • the frequency domain resource width occupied by the PSSCH is N units. Then the maximum transmit power of the N unit width can be calculated, which is P CMAX ′/P CMAX,PSD /P CMAX,CBR .
  • the first maximum transmit power, the second maximum transmit power and the third maximum transmit power based on the PSD condition At least one item of the maximum transmit power is obtained based on the maximum transmit power Y of every N5 PRB PRBs and the fourth information.
  • the fourth information includes at least one of the following: the number of sub-channels occupied by the PSSCH and the number of sub-channels occupied by each sub-channel. The number of PRBs.
  • the maximum transmit power of every N5 PRBs is Y, which can be determined by high-layer configuration or the terminal.
  • the maximum transmit power of each PRB can be calculated based on the maximum transmit power of every N5 PRB PRB.
  • the number of sub-channels occupied by PSSCH and the number of PRBs occupied by each sub-channel can be obtained.
  • the number of PRBs occupied by PSSCH is N6 PRB , then the maximum transmit power of N6 PRB PRBs is PCMAX ′/ PCMAX,PSD / PCMAX,CBR .
  • N7 PRB when the number of consecutive PRBs or the maximum number of consecutive PRBs in at least one PRB occupied by the PSSCH, N7 PRB , is greater than N8 PRB , the following methods can be used:
  • the first maximum transmit power, the second maximum transmit power and the third maximum transmit power based on the PSD condition At least one item in the transmit power is obtained based on the maximum transmit power Y per X unit width and the fifth information.
  • the fifth information includes at least one of the following: the number of PRBs occupied by PSSCH, the number of REs occupied by each PRB, The subcarrier spacing SCS of the first object.
  • the maximum transmit power per unit width of At least one of them can be obtained that the frequency domain resource width occupied by PSSCH is N units, then the maximum transmit power of N unit width can be calculated as P CMAX ′/P CMAX,PSD /P CMAX,CBR .
  • the first maximum transmit power, the second maximum transmit power and the third maximum transmit power based on the PSD condition At least one of the three maximum transmit powers is the maximum transmit power Y based on every N8 PRB PRBs, and the number of PRBs occupied by the PSSCH.
  • the maximum transmit power of every N8 PRBs is Y, which can be determined by high-layer configuration or the terminal.
  • the maximum transmit power of each PRB can be calculated based on the maximum transmit power of each N8 PRB PRB being Y. Then the maximum transmit power of the N9 PRB PRBs occupied by the PSSCH is P CMAX ′/P CMAX,PSD /P CMAX, CBR .
  • the following methods can be used:
  • the first maximum transmit power, the second maximum transmit power and the third maximum transmit power based on the PSD condition At least one of the maximum transmit power is obtained based on the maximum transmit power Y per X unit width and sixth information.
  • the sixth information includes at least one of the following: the number of RB sets occupied by PSSCH, the number of RB sets occupied by each The number of PRBs, the number of REs occupied by each PRB, and the subcarrier spacing SCS of the first object are obtained.
  • the maximum transmit power per 1 unit can be calculated based on the maximum transmit power per X unit width being Y. According to the number of RB sets occupied by PSSCH and the number of PRBs occupied by each RB set, the The number of REs. At least one item in the SCS of the first object can be obtained.
  • the frequency domain resource width occupied by PSSCH is N units. Then the maximum transmit power of N units can be calculated, which is P CMAX ′/P CMAX,PSD /P CMAX. ,CBR .
  • the first maximum transmit power, the second maximum transmit power and the third maximum transmit power based on the PSD condition At least one item of the maximum transmit power is obtained based on the maximum transmit power Y of every N11 PRB PRBs and the seventh information.
  • the seventh information includes at least one of the following: the number of RB sets occupied by PSSCH, the number of RB sets occupied by each RB set. The number of PRBs occupied.
  • the maximum transmit power of every N11 PRBs is Y, which can be determined by high-layer configuration or the terminal.
  • the maximum transmit power of each PRB can be calculated according to the maximum transmit power of each N11 PRB PRB. According to the number of RB sets occupied by PSSCH and the number of PRBs occupied by each RB set, the number of PRBs occupied by PSSCH is N12 PRB , then the maximum transmit power of N12 PRB PRBs is PCMAX ′/ PCMAX,PSD / PCMAX,CBR .
  • N2 PRB , N5 PRB , N8 PRB and N11 PRB are obtained according to at least one of the following:
  • PSD condition SCS of first object.
  • the high-layer configuration in the embodiment of this application may refer to the RRC configuration, for example.
  • the PSSCH occupies N1 interlaces, and each interlace contains M1 PRBs; the PSD condition is not to exceed 11dBm/MHz.
  • PSSCH power control of PSSCH
  • P PSSCH (i) min(P CMAX ,P MAX,CBR ,min(P PSSCH,D (i),P PSSCH,SL (i))) [dBm]
  • P CMAX is the first maximum transmission power allowed by the terminal. If the PSD condition does not need to be met, P CMAX is determined based on the eighth information; if the PSD condition needs to be met, when the N1 interlace occupied by the PSSCH (that is, the When the maximum number of continuous PRBs K1 of frequency domain resources is less than or equal to K2,
  • K1 ⁇ N RE ⁇ SCS is the frequency domain resource width occupied by K1 PRBs
  • N1 ⁇ M1 ⁇ N RE ⁇ SCS is the frequency domain resource width occupied by PSSCH.
  • P O,D /P O,SL is the basic operating point of the transmit power based on downlink/sidelink path loss power control configured by the high layer; ⁇ D / ⁇ SL is the downlink/sidelink path loss compensation factor configured by the high layer. If If there is no configuration, the corresponding value is 1; PL D /PL SL is the estimated downlink/sidelink path loss of the UE; Indicates the number of PRBs occupied by PSSCH.
  • the PSSCH is a hybrid structure, occupying N2 sub-channels + N3 PRBs (used as placeholders), and each sub-channel contains M2 PRBs; the PSD is limited to no more than 11dBm/MHz
  • PSSCH power control of PSSCH
  • P PSSCH (i) min(P CMAX ,P MAX,CBR ,P CMAX,PSD ,min(P PSSCH,D (i),P PSSCH,SL (i))) [dBm]
  • PCMAX is the maximum transmission power allowed by the UE.
  • PSD represents the maximum sidelink transmit power based on PSD restrictions. If the PSD restrictions need to be met, when the maximum number of continuous PRBs K3 in the frequency domain resources occupied by PSSCH is less than or equal to K4,
  • K3 ⁇ N RE ⁇ SCS is the frequency domain resource width occupied by K1 PRBs
  • P O, D / P O, SL is the basic work of transmit power based on downlink/sidelink path loss power control configured by the upper layer.
  • Point; ⁇ D / ⁇ SL is the downlink/sidelink path loss compensation factor configured by the high layer. If not configured, the corresponding value is 1;
  • PL D /PL SL is the downlink/sidelink path loss estimated by the UE; Indicates the number of PRBs occupied by PSSCH.
  • step 101 can be implemented in the following manner:
  • the terminal determines the transmit power of each PSFCH and/or the second number of PSFCHs that can be transmitted simultaneously based on the target information; the first power is the transmit power of each PSFCH obtained based on the path loss; the power control information includes the transmit power of each PSFCH and/or a second number of PSFCHs that can be sent simultaneously.
  • the target information includes at least one of the following: the first maximum transmission power PCMAX allowed by the terminal, the first maximum transmission power PCMAX ′ allowed by the terminal based on the PSD condition, the fourth maximum transmission power, the first power, and the PSFCH The maximum number of transmissions, the first number of PSFCHs that need to be transmitted simultaneously, and the priority of PSFCHs.
  • the first maximum transmit power and the fourth maximum transmit power can be equally distributed to each PSFCH to obtain power a and power b, and at least one of power a, power b and first power can be obtained.
  • the smaller value of one term is used as the transmit power of each PSFCH.
  • P PSFCH,one represents the first power
  • P O,PSFCH is the basic operating point of PSFCH transmit power based on downlink path loss power control
  • ⁇ PSFCH is the path loss compensation factor
  • PL is the path loss estimated by the terminal
  • At least one of the first maximum transmit power and the second maximum transmit power based on the PSD condition is obtained based on at least one of the following:
  • PSD conditions frequency domain resources occupied by PSFCH that need to be sent simultaneously
  • the PSD condition means that the transmit power within each X unit width does not exceed Y.
  • frequency domain resources include at least one of the following:
  • At least one interlace and at least one physical resource block PRB are at least one interlace and at least one physical resource block PRB.
  • frequency domain resources occupied by PSFCH that need to be sent simultaneously include frequency domain resources occupied by PSFCH information bits that need to be sent simultaneously and/or frequency domain resources occupied by bits used as placeholders.
  • the bit symbols may include repetitions of PSFCH and/or padding sequences.
  • the first maximum transmit power, the second maximum transmit power based on the PSD condition At least one item of the maximum transmit power is obtained based on the frequency domain resource width occupied by the PSFCH and the maximum transmit power Y within each Z unit width.
  • the second object includes at least one of resource pool, SL BWP, and PSFCH.
  • the number of consecutive PRBs or the maximum number of consecutive PRBs, N1 PRB is less than or equal to N2 PRB .
  • at least one of the first maximum transmission power and the second maximum transmission power based on the PSD condition is obtained based on the maximum transmission power Y per Z unit width and the ninth information, and the ninth information includes at least one of the following: PSFCH The number of interleavings occupied, the number of PRBs occupied by each interleaving, the number of REs occupied by each PRB, the subcarrier spacing SCS of the second object; and/or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one item is obtained based on the maximum transmission power Y of every N1 PRBs and the tenth information.
  • the tenth information includes at least one of the following: the number of interleaves occupied by PSFCH and the number of PRBs occupied by each interlace; and/ or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one item is obtained based on the maximum transmit power Y per Z unit width and the eleventh information.
  • the eleventh information includes at least one of the following: the number of PRBs occupied by PSFCH, the number of REs occupied by each PRB, the second The subcarrier spacing SCS of the object; and/or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one item is the number of PRBs occupied by PSFCH based on the maximum transmit power Y of PRBs per N7 PRBs ; and/or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one item of is obtained based on the maximum transmission power Y per Z unit width and the twelfth information.
  • the twelfth information includes at least one of the following: the number of RB sets occupied by PSFCH, the PRBs occupied by each RB set. number, the number of REs occupied by each PRB, the subcarrier spacing SCS of the second object; and/or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one item of is obtained based on the maximum transmit power Y of every N10 PRB PRBs and the thirteenth information.
  • the thirteenth information includes at least one of the following: the number of RB sets occupied by PSFCH, the number of RB sets occupied by each RB set. Number of PRBs.
  • the first maximum transmission power and the second maximum transmission power based on the PSD condition At least one item of the power is obtained based on the frequency domain resource width occupied by the PSFCH and the maximum transmission power Y within each unit width of X.
  • the second object includes at least one of resource pool, SL BWP, and PSFCH.
  • PSFCH resource pool
  • the number of consecutive PRBs or the maximum number of consecutive PRBs in at least one interlace occupied by PSFCH is greater than N2 PRB .
  • at least one of the first maximum transmit power and the second maximum transmit power based on the PSD condition is obtained based on the maximum transmit power Y per X unit width and the ninth information.
  • the ninth information includes at least one of the following: PSFCH The number of interleavings occupied, the number of PRBs occupied by each interleaving, the number of REs occupied by each PRB, the subcarrier spacing SCS of the second object; and/or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one item is obtained based on the maximum transmission power Y of every N2 PRB PRBs and the tenth information.
  • the tenth information includes at least one of the following: the number of interleavings occupied by PSFCH and the number of PRBs occupied by each interleaving; and/ or,
  • At least one of the first maximum transmit power and the second maximum transmit power based on the PSD condition is obtained based on the maximum transmit power Y per unit width of subcarrier spacing SCS; and/or,
  • the number of consecutive PRBs or the maximum number of consecutive PRBs in at least one PRB occupied by the PSFCH, N7 PRB, is greater than N8 PRB , at least one of the first maximum transmit power and the second maximum transmit power based on the PSD condition
  • the item is the maximum transmit power Y based on every N8 PRB PRBs, the number of PRBs occupied by PSFCH; and/or,
  • At least one of the first maximum transmit power and the second maximum transmit power based on the PSD condition One item is obtained based on the maximum transmission power Y per unit width of The number of REs occupied by each PRB, the subcarrier spacing SCS of the second object; and/or,
  • the thirteenth information includes at least one of the following: the number of RB sets occupied by PSFCH, and the number of PRBs occupied by each RB set. .
  • the above-mentioned method of determining at least one of the first maximum transmit power and the second maximum transmit power based on the PSD condition is similar to that of the PSSCH, and will not be described in detail here.
  • the first threshold to the fourth threshold may be the same as those for the PSSCH. The same or different in the embodiment.
  • the transmission power of each PSFCH is the first power
  • the second quantity is the first quantity
  • the second number of PSFCHs that can be transmitted simultaneously It is determined from the first number of PSFCHs according to the priority of the PSFCH; the second number of first powers is less than or equal to the first maximum transmit power or the fourth maximum transmit power based on the PSD condition; the transmit power of each PSFCH is the The minimum of the three powers and the first power; and/or,
  • the transmission power of each PSFCH is The first power and the second quantity are the maximum number of PSFCH transmissions, where the maximum number of PSFCH transmissions is The number of PSFCHs to be sent is determined by the terminal from the first number of PSFCHs according to the priority of the PSFCH; and/or,
  • the second number of PSFCHs that can be transmitted simultaneously It is determined from the maximum number of PSFCHs to be transmitted according to the priority of the PSFCH; the transmission power of the second number of PSFCHs does not exceed the first maximum transmission power or the fourth maximum transmission power based on PSD conditions; the transmission power of each PSFCH is the The minimum value among the three powers and the first power, wherein the maximum number of PSFCHs to be sent is determined by the terminal from the first number of PSFCHs according to the priority of the PSFCH; and/or,
  • the second number of PSFCHs that can be transmitted simultaneously It is determined from the maximum transmission number of PSFCHs according to the priority of the PSFCH; the second number of first powers does not exceed the first maximum transmission power or the fourth maximum transmission power based on PSD conditions; the transmission power of each PSFCH is The minimum value of the third power and the first power, wherein the maximum number of PSFCHs to be sent is determined by the terminal from the first number of PSFCHs according to the priority of the PSFCH;
  • the third power is the power of the first maximum transmission power or the fourth maximum transmission power based on the PSD condition evenly distributed to the second number of PSFCHs.
  • the first maximum transmission power and the second maximum transmission power that can meet the PSD condition restrictions are determined according to the frequency domain position (ie, the frequency domain resource) of the PSFCH that needs to be transmitted. According to the first maximum transmission power and the second maximum transmission power that meet the PSD condition restrictions, 2. Maximum transmit power, determine the power control information as follows:
  • N sch, Tx, PSFCH is the first number
  • N max PSFCH is the maximum transmission number
  • N Tx, PSFCH is the second number
  • P PSFCH represents the transmission power of each PSFCH.
  • N sch, Tx, PSFCH is less than or equal to N max, PSFCH , and the first power of N sch, Tx, PSFCH is less than or equal to PCMAX ′ or min ⁇ PCMAX, PSD , PCMAX ⁇ , P PSFCH is the first power, N Tx,PSFCH is N sch,Tx,PSFCH
  • N sch, Tx, PSFCH is less than or equal to N max, PSFCH and the first power of N sch, Tx, PSFCH is greater than PCMAX ′ or min ⁇ PCMAX,PSD , PCMAX ⁇
  • the terminal shall The priority is selected in order from high to low to be able to send N Tx,PSFCH PSFCHs at the same time, and the first power of N Tx,PSFCH is less than or equal to PCMAX ′ or min ⁇ PCMAX,PSD , PCMAX ⁇
  • P PSFCH is the minimum value of the third power and the first power of P CMAX ′ or min ⁇ P CMAX, PSD , P CMAX ⁇ equally distributed to N Tx, PSFCH PSFCHs;
  • N sch, Tx, PSFCH is greater than N max, PSFCH and satisfies the condition that the first power of N max, PSFCH is less than or equal to PCMAX ′ or min ⁇ PCMAX,PSD , PCMAX ⁇ , P PSFCH is the first power
  • N Tx,PSFCH is N max,PSFCH , where N max,PSFCH PSFCHs are selected by the terminal from N sch,Tx,PSFCH PSFCHs in order from high to low according to the priority of PSFCH;
  • N sch, Tx, PSFCH is greater than N max, PSFCH , and the first power of N max, PSFCH is greater than PCMAX ′ or min ⁇ PCMAX, PSD , PCMAX ⁇ , the terminal starts from the highest according to the priority of PSFCH.
  • N max, PSFCH PSFCHs in order from lowest to lowest, which can transmit N Tx, PSFCH PSFCHs at the same time, and the first power of N Tx, PSFCHs does not exceed P CMAX ′ or min ⁇ P CMAX, PSD , P CMAX ⁇ , P PSFCH is P CMAX ′ or min ⁇ P CMAX, PSD , P CMAX ⁇ and is equally divided into The smaller value of the third power and the first power on N Tx,PSFCH P PSFCH , where N max,PSFCH PSFCH is the terminal in order from high to low according to the priority of PSFCH from N sch,Tx,PSFCH Selected sequentially from each PSFCH.
  • the terminal determines the transmit power of each PSFCH and/or the second number of PSFCHs that can be transmitted simultaneously based on the target information, which can be implemented in the following manner:
  • the transmission power of each PSFCH is the first power, the second quantity being the first quantity;
  • the transmission power of each PSFCH is the first The minimum value of the power and the second power.
  • the second power is the maximum transmit power of each PSFCH based on the PSD condition.
  • the second number of PSFCHs that can be transmitted simultaneously is determined from the first number of PSFCHs according to the priority of the PSFCH. ;
  • the second number of first powers is less than or equal to the minimum of the first maximum transmit power or the fourth maximum transmit power based on the PSD condition; and/or,
  • the transmission power of each PSFCH is the first The minimum value of the power and the second power.
  • the second power is the maximum transmit power of each PSFCH based on the PSD condition.
  • the second number of PSFCHs that can be transmitted simultaneously is determined from the first number of PSFCHs according to the priority of the PSFCH. ;
  • the transmit power of the second number of PSFCHs is less than or equal to the minimum of the first maximum transmit power or the fourth maximum transmit power based on the PSD condition; and/or,
  • the transmission power of each PSFCH is The first power and the second quantity are the maximum number of PSFCHs sent; the maximum number of PSFCHs sent is determined by the terminal from the first number of PSFCHs according to the priority of the PSFCH; and/or,
  • the transmission power of each PSFCH is the first power and the minimum value of the second power
  • the second power is the maximum transmission power of each PSFCH based on the PSD condition
  • the second number of PSFCHs that can be transmitted simultaneously is determined from the maximum number of PSFCHs to be transmitted according to the priority of the PSFCH;
  • the transmission power of the second number of PSFCHs does not exceed the minimum value of the first maximum transmission power or the fourth maximum transmission power based on the PSD condition.
  • the maximum number of PSFCHs to send is determined by the terminal from the first number of PSFCHs according to the priority of the PSFCH.
  • the maximum transmit power P PSFCH,PSD of each PSFCH that can meet the PSD condition restriction is determined according to the frequency domain position (ie, frequency domain resource) of the PSFCH that needs to be transmitted. During power control, it is ensured that the transmit power of each PSFCH always meets P PSFCH, PSD restrictions.
  • N sch, Tx, PSFCH is less than or equal to N max, PSFCH , and the first power of N sch, Tx, PSFCH is less than or equal to PCMAX ′ or min ⁇ PCMAX, PSD , PCMAX ⁇ , P PSFCH is the first power, N Tx,PSFCH is N sch,Tx,PSFCH ;
  • N sch, Tx, PSFCH is less than or equal to N max, PSFCH , and the first power of N sch, Tx, PSFCH is greater than P CMAX ′ or min ⁇ P CMAX, PSD , P CMAX ⁇ , P PSFCH is the first power of N sch, Tx, PSFCH .
  • P PSFCH, PSD is the maximum transmit power of each PSFCH that meets the PSD limit.
  • the terminal selects in order from high to low the priority of PSFCH to be able to transmit at the same time.
  • N Tx,PSFCH PSFCH, and the power of N Tx,PSFCH P PSFCH does not exceed the smaller value of PCMAX ′ or min ⁇ PCMAX,PSD , PCMAX ⁇ ;
  • N sch, Tx, PSFCH is greater than N max, PSFCH and satisfies the condition that the first power of N max, PSFCH is less than or equal to PCMAX ′ or min ⁇ PCMAX,PSD , PCMAX ⁇ , P PSFCH is the first power
  • N Tx,PSFCH is N max,PSFCH
  • the N max,PSFCH PSFCHs are selected by the terminal from N sch,Tx,PSFCH PSFCHs in sequence from high to low according to priority.
  • N sch,Tx,PSFCH is greater than N max,PSFCH and the first power of N max,PSFCH is greater than PCMAX ′ or min ⁇ PCMAX,PSD , PCMAX ⁇
  • P PSFCH is P PSFCH,PSD and The smaller value of the first power, P PSFCH, PSD, is the maximum transmit power of each PSFCH that meets the PSD restriction.
  • the terminal root selects N max, PSFCH PSFCHs in order from high to low according to the priority of the PSFCH to be able to simultaneously N Tx,PSFCH PSFCHs are sent, and the power of N Tx,PSFCH P PSFCHs does not exceed the smaller value of PCMAX ′ or min ⁇ PCMAX,PSD , PCMAX ⁇ .
  • the method also includes:
  • the terminal performs at least one of the following actions:
  • the transmission power of each PSFCH and/or the second number of PSFCHs that can be transmitted simultaneously is determined based on at least one of the following:
  • the first maximum transmission power allowed by the terminal the first power, the maximum number of PSFCHs to send, the first number of PSFCHs that need to be sent simultaneously, and the priority of PSFCHs.
  • the terminal determines the transmission power of each PSFCH P PSFCH and/or the number of PSFCHs that can be transmitted simultaneously N Tx,PSFCH based on at least one of the following, for example, based on at least one of the following: PCMAX , first power, N max, PSFCH , the first number N sch,Tx,PSFCH of PSFCHs that need to be sent simultaneously.
  • the terminal needs to perform side link feedback simultaneously according to the second number of PSFCHs corresponding to the PSSCHs received in at least one PSSCH time slot.
  • the second power is obtained according to at least one of the following:
  • the first number of PSFCH is the first number of PSFCH.
  • the second number of PSFCHs is the second number of PSFCHs.
  • the power obtained by evenly dividing PCMAX ′ onto N sch, Tx, PSFCH PSFCHs is P PSFCH,PSD
  • the power obtained by dividing PCMAX ′ equally among N Tx,PSFCH PSFCHs is P PSFCH ,PSD
  • the power obtained is PPSFCH,PSD
  • the smaller value among PCMAX,PSD and PCMAX evenly to N sch,Tx,PSFCH PSFCH
  • the power obtained is PPSFCH,PSD ,or divide the smaller value among PCMAX,PSD and PCMAX
  • the power obtained by dividing the smaller value equally onto N Tx,PSFCH PSFCHs is P PSFCH,PSD .
  • the second power is obtained according to at least one of the following:
  • PSD conditions frequency domain resources occupied by the second number of PSFCHs; frequency domain resources occupied by the first number of PSFCHs.
  • the specific calculation method is similar to the determination of several maximum transmit powers in PSSCH (except for the situation where the occupied frequency domain resources are multiple sub-channels).
  • the frequency domain resource width occupied by PSSCH is replaced by the frequency domain width occupied by each PSFCH. Here No longer.
  • P PSFCH,one P O,PSFCH +10log 10 (2 ⁇ )+ ⁇ PSFCH ⁇ PL[dBm]
  • P O,PSFCH is the basic operating point of PSFCH transmit power based on downlink path loss power control configured by the higher layer;
  • ⁇ PSFCH is the downlink path loss compensation factor based on PSFCH power control configured by the higher layer. If not configured, the corresponding value is 1;
  • PL is the estimated downlink path loss of the terminal.
  • N min, PSFCH is the maximum N value. If N P PSFCHs, one does not exceed min ⁇ PCMAX , P CMAX, PSD ⁇ , the terminal shall follow the priority of PSFCH.
  • Select N TX,PSFCH PSFCHs in order from high to low for transmission. N TX,PSFCH are in the range of [N min,PSFCH ,N sch,PSFCH ]; P PSFCH min ⁇ P PSFCH,PSD ,P PSFCH,one ⁇
  • the terminal selects N max, PSFCH PSFCHs from the N sch ,PSFCH PSFCHs in order from high to low priority.
  • N max,PSFCH the minimum number of PSFCHs to be sent, N min,PSFCH , and N min,PSFCH is the maximum N value.
  • N P PSFCH one does not exceed min ⁇ P CMAX , P CMAX, PSD ⁇
  • the terminal selects N TX, PSFCH PSFCH for transmission in order of priority from high to low, and N TX, PSFCH is within [N min, PSFCH ,N max,PSFCH ] range.
  • P PSFCH min ⁇ P PSFCH,PSD ,P PSFCH,one ⁇
  • PCMAX is the maximum transmission power allowed by the terminal
  • P PSFCH,PSD is the maximum transmit power P PSFCH,PSD of each PSFCH that satisfies PSD.
  • step 101 can be implemented in the following manner:
  • the terminal determines the transmission power of the side link synchronization signal block S-SSB based on the target information.
  • the target information includes at least one of the following: the first maximum transmission power allowed by the terminal, the first maximum transmission power based on the PSD condition allowed by the terminal, the second maximum transmission power, and the first power.
  • the terminal uses the minimum value in the target information as the transmit power of S-SSB.
  • the terminal uses the minimum value in the target information as the transmit power of S-SSB.
  • the following methods can be used:
  • the target information includes the first maximum transmission power based on the PSD condition and the first power
  • the minimum value of the first maximum transmission power based on the PSD condition and the first power is used as S- SSB transmit power
  • the target information includes the first maximum transmission power, the second maximum transmission power allowed by the terminal and the first power, the first maximum transmission power allowed by the terminal, the second maximum transmission power and the first power are The minimum value among the powers is used as the transmit power of the S-SSB.
  • the method of calculating the transmit power of S-SSB based on PCMAX ′ and the first power may be to compare PCMAX ′ and the first power and obtain the minimum value as the transmit power of S-SSB.
  • the method of calculating the transmit power of S-SSB based on PCMAX , PCMAX, PSD and the first power may be to compare PCMAX , PCMAX, PSD and the third power, and take the smaller value as the transmit power of S-SSB.
  • the first power can be achieved in the following ways:
  • P O,S-SSB represents the basic operating point of the S-SSB transmit power based on downlink path loss power control.
  • P O_nominal,S-SSB indicates the nominal transmit power of S-SSB based on downlink path loss power control, and other parameters The parameters in the formula are similar to those in the previous embodiment.
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition are obtained based on at least one of the following:
  • PSD conditions frequency domain resources occupied by S-SSB
  • the PSD condition means that the transmit power within each X unit width does not exceed Y.
  • the frequency domain resource includes at least one physical resource block PRB.
  • the frequency domain resources occupied by S-SSB include: frequency domain resources occupied by S-SSB information bits and/or frequency domain resources occupied by bits used as placeholders.
  • the placeholders may include SSB A repeating repetition and/or padding sequence, such as one or more PRBs.
  • At least one of the first maximum transmit power and the second maximum transmit power based on the PSD condition is based on
  • At least one of the first maximum transmit power and the second maximum transmit power based on the PSD condition is obtained based on the maximum transmit power Y within each X unit width and the fourteenth information, and the tenth
  • the fourth information includes at least one of the following: the number of PRBs occupied by the S-SSB, the number of REs occupied by each PRB, and the SCS of the S-SSB.
  • the maximum transmit power per 1 unit width can be calculated.
  • the frequency domain resource width occupied by S-SSB is N units, then the maximum transmit power of N unit width can be calculated power.
  • PSD is based on the maximum transmit power per unit width of items are calculated.
  • the maximum transmit power per unit width can be calculated based on the maximum transmit power per unit width of At least one item in the SCS can be obtained.
  • the frequency domain resource width occupied by the S-SSB is N units. Then the maximum transmit power of the N unit width can be calculated as PCMAX / PCMAX,PSD .
  • the transmit power of S-SSB can be obtained by the following formula:
  • PCMAX is the maximum transmission power allowed by the terminal.
  • the execution subject may be a side-link power control device.
  • the power control device of the side link performing the power control method of the side link is used as an example to illustrate the power control device of the side link provided by the embodiment of the present application.
  • FIG. 5 is one of the schematic structural diagrams of a side-link power control device provided by an embodiment of the present application. As shown in Figure 5, the side link power control device provided in this embodiment includes:
  • the processing module 110 is configured to determine the power control information of the channel or signal in the side link based on the target information
  • the target information includes at least one of the following: a first maximum transmission power allowed by the terminal, a first maximum transmission power based on a power spectral density PSD condition allowed by the terminal, a second maximum transmission power based on a PSD condition, congestion
  • the fourth maximum transmit power is the minimum value of the first maximum transmit power allowed by the terminal and the second maximum transmit power
  • the first power is based on path loss, the third maximum transmit power
  • At least one of the first maximum transmit power, the second maximum transmit power and the third maximum transmit power based on PSD conditions is obtained based on at least one of the following granularities:
  • the target information includes at least one of the following: the first maximum transmission power allowed by the terminal, the first maximum transmission power allowed by the terminal based on PSD conditions, the second maximum transmission power, the In the case of the third maximum transmit power and the first power, the power control information includes the transmit power, and the processing module 110 is specifically used to:
  • the transmit power of the physical side link shared channel PSSCH is determined based on the target information; the first power is the transmit power of the PSSCH obtained based on at least one of path loss, the first maximum transmit power and the third maximum transmit power. .
  • At least one of the first maximum transmit power, the second maximum transmit power and the third maximum transmit power based on PSD conditions is obtained based on at least one of the following:
  • PSD conditions frequency domain resources occupied by PSSCH
  • the PSD condition means that the transmit power within each X unit width does not exceed Y.
  • the frequency domain resources include at least one of the following:
  • At least one interlace at least one sub-channel, at least one physical resource block PRB, and at least one RB set.
  • the first maximum transmit power based on the PSD condition, second largest At least one of the transmit power and the third maximum transmit power is obtained based on the frequency domain resource width occupied by the PSSCH and the maximum transmit power Y within each Z unit width.
  • the first maximum transmit power based on the PSD condition, the At least one of the second maximum transmit power and the third maximum transmit power is obtained based on the maximum transmit power Y per Z unit width and first information, and the first information includes at least one of the following: interleave number occupied by PSSCH number, the number of PRBs occupied by each interleaving, the number of REs occupied by each PRB, the subcarrier spacing SCS of the first object; and/or,
  • the first maximum transmission power and the second maximum transmission power based on the PSD condition and at least one of the third maximum transmit power is obtained based on the maximum transmit power Y of every N1 PRB PRBs and second information.
  • the second information includes at least one of the following: the number of interleaves occupied by the PSSCH and the number of interlaces per N1 PRB. The number of PRBs occupied by interleaving; and/or,
  • the first maximum transmission power and the second maximum transmission power based on the PSD condition At least one of the power and the third maximum transmit power is obtained based on the maximum transmit power Y per Z unit width and third information.
  • the third information includes at least one of the following: the number of sub-channels occupied by the PSSCH, The number of PRBs occupied by each sub-channel, the number of REs occupied by each PRB, the sub-carrier spacing SCS of the first object; and/or,
  • the first maximum transmission power and the second maximum transmission power based on the PSD condition At least one of the power and the third maximum transmit power is obtained based on the maximum transmit power Y of every N4 PRB PRBs and fourth information.
  • the fourth information includes at least one of the following: the number of subchannels occupied by the PSSCH and the number of PRBs occupied by each sub-channel; and/or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition and at least one of the third maximum transmit power is obtained based on the maximum transmit power Y per N7 PRB PRBs and the number of PRBs occupied by PSSCH; and/or,
  • the first maximum transmission power and the second maximum transmission power based on the PSD condition At least one of the power and the third maximum transmit power is obtained based on the maximum transmit power Y per Z unit width and sixth information.
  • the sixth information includes at least one of the following: the number of RB sets occupied by the PSSCH, Every The number of PRBs occupied by each RB set, the number of REs occupied by each PRB, the subcarrier spacing SCS of the first object; and/or,
  • the first maximum transmission power and the second maximum transmission power based on the PSD condition At least one of the power and the third maximum transmit power is obtained based on the maximum transmit power Y of every N10 PRB PRBs and seventh information.
  • the seventh information includes at least one of the following: the number of RB sets occupied by PSSCH , the number of PRBs occupied by each RB set.
  • the first maximum transmit power based on the PSD condition, the second At least one of the maximum transmit power and the third maximum transmit power is obtained based on the frequency domain resource width occupied by the PSSCH and the maximum transmit power Y within each X unit width.
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition
  • At least one of the transmit power and the third maximum transmit power is obtained based on the maximum transmit power Y per unit width of The number of PRBs occupied by each interlace, the number of REs occupied by each PRB, the subcarrier spacing SCS of the first object; and/or,
  • the first maximum transmit power, the second maximum transmit power and the third maximum transmit power based on the PSD condition At least one of the three maximum transmit powers is obtained based on the maximum transmit power Y of every N2 PRB PRBs and second information.
  • the second information includes at least one of the following: the number of interleaves occupied by PSSCH and each interlace Number of PRBs occupied; and/or,
  • the first maximum transmit power, the second maximum transmit power based on the PSD condition and At least one of the third maximum transmit powers is obtained based on the maximum transmit power Y per unit width of The number of PRBs occupied by the channel, the number of REs occupied by each PRB, and the subcarrier spacing SCS of the first object; and/or,
  • the first maximum transmit power, the second maximum transmit power based on the PSD condition and At least one of the third maximum transmit powers is obtained based on the maximum transmit power Y of every N5 PRBs and fourth information.
  • the fourth information includes at least one of the following: the number of sub-channels occupied by the PSSCH and the number of sub-channels occupied by each PSSCH. The number of PRBs occupied by the sub-channel; and/or,
  • the first maximum transmit power, the second maximum transmit power and the third maximum transmit power based on the PSD condition At least one of the three maximum transmit powers is obtained based on the maximum transmit power Y per unit width of of RE number, subcarrier spacing SCS of the first object; and/or,
  • the first maximum transmit power, the second maximum transmit power and the third maximum transmit power based on the PSD condition
  • At least one of the three maximum transmit powers is the maximum transmit power Y based on every N8 PRB PRBs, the number of PRBs occupied by PSSCH; and/or,
  • the first maximum transmit power, the second maximum transmit power based on the PSD condition and At least one of the third maximum transmit power is obtained based on the maximum transmit power Y per X unit width and sixth information.
  • the sixth information includes at least one of the following: the number of RB sets occupied by PSSCH, each The number of PRBs occupied by the RB set, the number of REs occupied by each PRB, and the subcarrier spacing SCS of the first object; and/or,
  • the first maximum transmit power, the second maximum transmit power based on the PSD condition and At least one of the third maximum transmit power is obtained based on the maximum transmit power Y of every N11 PRBs and seventh information.
  • the seventh information includes at least one of the following: the number of RB sets occupied by PSSCH, each The number of PRBs occupied by each RB set.
  • the first maximum transmit power allowed by the terminal is the minimum value of the first maximum transmit power determined based on the eighth information and the first maximum transmit power based on the PSD condition;
  • the eighth information includes at least one of the following:
  • processing module 110 is specifically used to:
  • the minimum value in the target information is used as the transmit power of the PSSCH.
  • processing module 110 is specifically used to:
  • the target information includes the first maximum transmit power based on the PSD condition and the first power
  • the minimum value of the first maximum transmit power based on the PSD condition and the first power is taken as The transmit power of the PSSCH;
  • the target information includes the first maximum transmission power
  • the third maximum transmission power based on the PSD condition and the first power are The minimum value among the power and the first power is used as the transmit power of the PSSCH;
  • the target information includes the first maximum transmission power, the second maximum transmission power allowed by the terminal and the first power, the first maximum transmission power allowed by the terminal, the second maximum transmission power and the The minimum value of the first power is used as the transmit power of the PSSCH;
  • the target information includes the first maximum transmission power, the second maximum transmission power, the third maximum transmission power and the first power allowed by the terminal, the first maximum transmission power allowed by the terminal, The minimum value among the second maximum transmit power, the third maximum transmit power and the first power is used as the transmit power of the PSSCH.
  • N2 PRB , N5 PRB , and N8 PRB are obtained according to at least one of the following:
  • PSD condition SCS of first object.
  • the target information includes at least one of the following: the first maximum transmission power allowed by the terminal, the first maximum transmission power based on the PSD condition allowed by the terminal, the fourth maximum transmission power, the first power , the maximum number of PSFCHs sent, the first number of PSFCHs that need to be sent simultaneously, and the priority of PSFCHs, the processing module 110 is specifically used to:
  • the transmit power of each PSFCH and/or the second number of PSFCHs that can be transmitted simultaneously is determined based on the target information; the first power is the transmit power of each PSFCH obtained based on path loss; the power control information includes the The transmit power of PSFCHs and/or the second number of PSFCHs that can be transmitted simultaneously.
  • At least one of the first maximum transmit power and the second maximum transmit power based on the PSD condition is obtained based on at least one of the following:
  • PSD conditions frequency domain resources occupied by PSFCH that need to be sent simultaneously
  • the PSD condition means that the transmit power within each X unit width does not exceed Y.
  • the frequency domain resources include at least one of the following:
  • At least one interlace and at least one physical resource block PRB are at least one interlace and at least one physical resource block PRB.
  • the first maximum transmit power based on the PSD condition At least one item of the second maximum transmit power is obtained based on the frequency domain resource width occupied by the PSFCH and the maximum transmit power Y within each Z unit width.
  • the first maximum transmit power based on the PSD condition the At least one of the two maximum transmit powers is obtained based on the maximum transmit power Y per Z unit width and ninth information.
  • the ninth information includes at least one of the following: the number of interleaves occupied by PSFCH, the number of interleaves occupied by each interleave. The number of PRBs occupied, the number of REs occupied by each PRB, the subcarrier spacing SCS of the second object; and/or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one of them is obtained based on the maximum transmission power Y of every N1 PRB PRBs and the tenth information.
  • the tenth information includes at least one of the following: the number of interleaves occupied by PSFCH and the PRBs occupied by each interlace. number; and/or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one of them is obtained based on the maximum transmit power Y per Z unit width and the eleventh information.
  • the eleventh information includes at least one of the following: the number of PRBs occupied by PSFCH, the RE occupied by each PRB. number, the subcarrier spacing SCS of the second object; and/or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one of them is the number of PRBs occupied by PSFCH based on the maximum transmit power Y per N7 PRBs of PRBs; and/or,
  • the first maximum transmission power and the second maximum transmission power based on PSD conditions At least one item in the power is obtained based on the maximum transmission power Y per Z unit width and twelfth information.
  • the twelfth information includes at least one of the following:, the number of RB sets occupied by PSFCH, each RB The number of PRBs occupied by the set, the number of REs occupied by each PRB, and the subcarrier spacing SCS of the second object; and/or,
  • the first maximum transmission power and the second maximum transmission power based on PSD conditions At least one item in the power is obtained based on the maximum transmission power Y of every N10 PRBs and the thirteenth information.
  • the thirteenth information includes at least one of the following: the number of RB sets occupied by PSFCH, each RB The number of PRBs occupied by the collection.
  • the first maximum transmit power based on the PSD condition the second At least one item of the maximum transmit power is obtained based on the frequency domain resource width occupied by the PSFCH and the maximum transmit power Y within each unit width of X.
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one item in the transmit power is obtained based on the maximum transmit power Y per X unit width and ninth information.
  • the ninth information includes at least one of the following: the number of interleaves occupied by PSFCH, the The number of PRBs, the number of REs occupied by each PRB, the subcarrier spacing SCS of the second object; and/or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one item is obtained based on the maximum transmission power Y of every N2 PRB PRBs and the tenth information.
  • the tenth information includes at least one of the following: the number of interleaves occupied by PSFCH and the number of PRBs occupied by each interlace; and / or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one item is obtained based on the maximum transmission power Y per unit width of
  • the eleven information includes at least one of the following: the number of PRBs occupied by PSFCH, the number of REs occupied by each PRB, and the subcarrier spacing SCS of the second object; and/or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one item is the number of PRBs occupied by PSFCH based on the maximum transmit power Y per N8 PRB PRBs; and/or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one item of is obtained based on the maximum transmission power Y per unit width of The number of PRBs occupied, the number of REs occupied by each PRB, the subcarrier spacing SCS of the second object; and/or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one item of is obtained based on the maximum transmit power Y of every N11 PRB PRBs and the thirteenth information.
  • the thirteenth information includes at least one of the following: the number of RB sets occupied by PSFCH, the number of RB sets occupied by each RB set. The number of PRBs occupied.
  • the transmission power of each PSFCH is the first power
  • the second quantity is the first quantity
  • the first number is less than or equal to the maximum transmission number of PSFCH, and the first power of the first number is greater than the first maximum transmission power or the fourth maximum transmission power based on the PSD condition
  • the first number that can be transmitted simultaneously The second number of PSFCHs is determined from the first number of PSFCHs according to the priority of the PSFCH; the second number of first powers are less than or equal to the first maximum transmit power or the fourth maximum transmit power based on the PSD condition; each The transmit power of the PSFCH is the minimum value of the third power and the first power; and/or,
  • the transmission of each PSFCH The power is the first power
  • the second number is the maximum number of PSFCHs to send, where the maximum number of PSFCHs to send is determined by the terminal from the first number of PSFCHs according to the priority of the PSFCH; and/ or,
  • the said first number that can be transmitted simultaneously The second number of PSFCHs is determined from the maximum transmission number of PSFCHs according to the priority of the PSFCH; the transmission power of the second number of PSFCHs does not exceed the first maximum transmission power or the fourth maximum transmission power based on the PSD condition; each The transmit power of the PSFCH is the minimum value of the third power and the first power, where, The maximum number of PSFCHs to be sent is determined by the terminal from the first number of PSFCHs according to the priority of the PSFCH; and/or,
  • the said first number that can be transmitted simultaneously The second number of PSFCHs is determined from the maximum transmission number of PSFCHs according to the priority of the PSFCH; the second number of first powers does not exceed the first maximum transmission power or the fourth maximum transmission power based on the PSD condition; each PSFCH
  • the transmission power is the minimum value of the third power and the first power, wherein the maximum number of PSFCHs to be transmitted is determined by the terminal from the first number of PSFCHs according to the priority of the PSFCH;
  • the third power is the power of the first maximum transmit power or the fourth maximum transmit power based on the PSD condition evenly distributed to the second number of PSFCHs.
  • each The transmit power of PSFCHs is the first power, and the second number is the first number;
  • the transmission power of each PSFCH is The minimum value of the first power and the second power
  • the second power is the maximum transmission power of each PSFCH based on the PSD condition
  • the second number of PSFCHs that can be transmitted simultaneously is based on the priority of the PSFCH. Determined in a first number of PSFCHs; the second number of first powers are less than or equal to the minimum of the first maximum transmit power or the fourth maximum transmit power based on PSD conditions; and/or,
  • the transmission power of each PSFCH is The minimum value of the first power and the second power
  • the second power is the maximum transmission power of each PSFCH based on the PSD condition
  • the second number of PSFCHs that can be transmitted simultaneously is based on the priority of the PSFCH. Determined in the first number of PSFCHs; the transmission power of the second number of PSFCHs is less than or equal to the minimum of the first maximum transmission power or the fourth maximum transmission power based on the PSD condition; and/or,
  • the transmission of each PSFCH The power is the first power, and the second number is the maximum number of PSFCHs to send; the maximum number of PSFCHs to send is determined by the terminal from the first number of PSFCHs according to the priority of PSFCH; and / or,
  • the transmission power of each PSFCH is The minimum value of the first power and the second power
  • the second power is the maximum transmission power of each PSFCH based on the PSD condition
  • the second number of PSFCHs that can be transmitted simultaneously is the maximum transmission power based on the priority of the PSFCH.
  • the transmission power of the second number of PSFCHs does not exceed the determined number of PSFCHs based on The PSD condition is the minimum of the first maximum transmit power or the fourth maximum transmit power.
  • the maximum number of PSFCHs to send is determined by the terminal from the first number of PSFCHs according to the priority of the PSFCHs.
  • processing module 110 is also configured to perform at least one of the following actions:
  • the transmission power of each PSFCH and/or the second number of PSFCHs that can be transmitted simultaneously is determined based on at least one of the following:
  • the first maximum transmission power allowed by the terminal the first power, the maximum number of PSFCHs to send, the first number of PSFCHs that need to be sent simultaneously, and the priority of PSFCHs.
  • the second power is obtained according to at least one of the following:
  • the first number of PSFCH is the first number of PSFCH.
  • the second number of PSFCHs is the second number of PSFCHs.
  • the second power is obtained according to at least one of the following:
  • PSD conditions frequency domain resources occupied by the second number of PSFCHs; frequency domain resources occupied by the first number of PSFCHs.
  • the target information includes at least one of the following: a first maximum transmission power allowed by the terminal, a first maximum transmission power based on PSD conditions allowed by the terminal, a second maximum transmission power, a first power
  • the power control information includes transmission power
  • the processing module 110 is specifically used to:
  • the transmission power of the side link synchronization signal block S-SSB is determined based on the target information.
  • processing module 110 is specifically used to:
  • the minimum value in the target information is used as the transmit power of the S-SSB.
  • processing module 110 is specifically used to:
  • the target information includes the first maximum transmit power based on the PSD condition and the first power
  • the minimum value of the first maximum transmit power based on the PSD condition and the first power is taken as The transmit power of the S-SSB
  • the target information includes the first maximum transmission power, the second maximum transmission power allowed by the terminal and the first power, the first maximum transmission power allowed by the terminal, the second maximum transmission power and the The minimum value of the first powers is used as the transmit power of the S-SSB.
  • the first maximum transmit power and the second maximum transmit power based on PSD conditions are obtained based on at least one of the following:
  • PSD conditions frequency domain resources occupied by S-SSB
  • the PSD condition means that the transmit power within each X unit width does not exceed Y.
  • the frequency domain resource includes at least one physical resource block PRB.
  • At least one of the first maximum transmit power and the second maximum transmit power based on the PSD condition is obtained based on the frequency domain resource width occupied by the S-SSB and the maximum transmit power Y within each X unit width. of.
  • At least one of the first maximum transmit power and the second maximum transmit power based on the PSD condition is obtained based on the maximum transmit power Y within each X unit width and the fourteenth information, and the tenth
  • the fourth information includes at least one of the following: the number of PRBs occupied by the S-SSB, the number of REs occupied by each PRB, and the SCS of the S-SSB.
  • the device of this embodiment can be used to execute the method of any of the foregoing terminal-side method embodiments. Its specific implementation process and technical effects are the same as those in the terminal-side method embodiments. For details, please refer to the terminal-side method embodiments. Detailed introduction will not be repeated here.
  • the power control device of the side link in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip.
  • the electronic device may be a terminal or other devices other than the terminal.
  • terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.
  • the side-link power control device provided by the embodiment of the present application can implement each process implemented by the method embodiment of Figures 3 to 4 and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • this embodiment of the present application also provides a communication device 600, which includes a processor 601 and a memory 602.
  • the memory 602 stores programs or instructions that can be run on the processor 601, such as , when the communication device 600 is a terminal, when the program or instruction is executed by the processor 601, each step of the above side-link power control method embodiment is implemented, and the same technical effect can be achieved.
  • the communication device 600 is a network-side device, when the program or instruction is executed by the processor 601, each step of the above-mentioned side link power control method embodiment is implemented, and the same technical effect can be achieved. To avoid duplication, it will not be repeated here. Repeat.
  • An embodiment of the present application also provides a terminal, including a processor and a communication interface.
  • the processor is configured to determine power control information of a channel or signal in a side link based on target information; the target information includes at least one of the following: the terminal allows The first maximum transmit power, the first maximum transmit power based on the power spectral density PSD condition allowed by the terminal, the second maximum transmit power based on the PSD condition, the third maximum transmit power based on the transmission priority and channel busy ratio CBR level under congestion control
  • FIG. 7 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.
  • the terminal 1000 includes but is not limited to: radio frequency unit 1001, network module 1002, audio output unit 1003, At least some of the input unit 1004, the sensor 1005, the display unit 1006, the user input unit 1007, the interface unit 1008, the memory 1009, the processor 1010, and the like.
  • the terminal 1000 may also include a power supply (such as a battery) that supplies power to various components.
  • the power supply may be logically connected to the processor 1010 through a power management system, thereby managing charging, discharging, and power consumption through the power management system. Management and other functions.
  • the terminal structure shown in FIG. 7 does not constitute a limitation on the terminal.
  • the terminal may include more or fewer components than shown in the figure, or some components may be combined or arranged differently, which will not be described again here.
  • the input unit 1004 may include a graphics processing unit (Graphics Processing Unit, GPU) 10041 and a microphone 10042.
  • the graphics processor 10041 is responsible for the image capture device (GPU) in the video capture mode or the image capture mode. Process the image data of still pictures or videos obtained by cameras (such as cameras).
  • the display unit 1006 may include a display panel 10061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 1007 includes a touch panel 10071 and at least one of other input devices 10072 .
  • Touch panel 10071 also known as touch screen.
  • the touch panel 10071 may include two parts: a touch detection device and a touch controller.
  • Other input devices 10072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here.
  • the radio frequency unit 1001 after receiving downlink data from the network side device, can transmit it to the processor 1010 for processing; in addition, the radio frequency unit 1001 can send uplink data to the network side device.
  • the radio frequency unit 1001 includes, but is not limited to, an antenna, at least one amplifier, transceiver, coupler, low noise amplifier, duplexer, etc.
  • Memory 1009 may be used to store software programs or instructions as well as various data.
  • the memory 1009 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage program or instruction area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, image playback function, etc.), etc.
  • memory 1009 may include volatile memory or nonvolatile memory, or memory 1009 may include both volatile and nonvolatile memory.
  • non-volatile memory can also include non-volatile memory, where the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), programmable read-only memory (Programmable ROM, PROM), Erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • PROM programmable read-only memory
  • PROM programmable read-only memory
  • Erasable PROM Erasable programmable read-only memory
  • EPROM electrically erasable programmable read-only memory
  • flash memory electrically erasable programmable read-only memory
  • Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch link DRAM) , SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM).
  • Memory 1009 in embodiments of the present application includes, but is not limited to, these and any other suitable type of memory such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.
  • the processor 1010 may include one or more processing units; optionally, the processor 1010 may integrate an application processor and a modem processor, where the application processor mainly processes operating systems, user interfaces, application programs or instructions, etc. In operation, the modem processor mainly processes wireless communication signals, such as the baseband processor. It can be understood that the above modem processor may not be integrated into the processor 1010.
  • the processor 1010 is configured to determine the power control information of the channel or signal in the side link based on the target information
  • the target information includes at least one of the following: a first maximum transmission power allowed by the terminal, a first maximum transmission power based on a power spectral density PSD condition allowed by the terminal, a second maximum transmission power based on a PSD condition, congestion
  • the fourth maximum transmit power is the minimum value of the first maximum transmit power allowed by the terminal and the second maximum transmit power
  • the first power is based on path loss, the third maximum transmit power
  • At least one of the first maximum transmit power, the second maximum transmit power and the third maximum transmit power based on PSD conditions is obtained based on at least one of the following granularities:
  • the target information includes at least one of the following: the first maximum transmission power allowed by the terminal, the first maximum transmission power allowed by the terminal based on PSD conditions, the second maximum transmission power, the In the case of the third maximum transmit power and the first power, the power control information includes the transmit power, and the processor 1010 is specifically used to:
  • the transmit power of the physical side link shared channel PSSCH is determined based on the target information; the first power is the transmit power of the PSSCH obtained based on at least one of path loss, the first maximum transmit power and the third maximum transmit power. .
  • At least one of the first maximum transmit power, the second maximum transmit power and the third maximum transmit power based on PSD conditions is obtained based on at least one of the following:
  • PSD conditions frequency domain resources occupied by PSSCH
  • the PSD condition means that the transmit power within each X unit width does not exceed Y.
  • the frequency domain resources include at least one of the following:
  • At least one interlace at least one sub-channel, at least one physical resource block PRB, and at least one RB set.
  • the first maximum transmit power based on the PSD condition At least one of the second maximum transmit power and the third maximum transmit power is obtained based on the frequency domain resource width occupied by the PSSCH and the maximum transmit power Y within each Z unit width.
  • the first maximum transmit power based on the PSD condition, the At least one of the second maximum transmit power and the third maximum transmit power is the maximum transmit power Y based on the unit width per Z.
  • first information includes at least one of the following: the number of interleaves occupied by PSSCH, the number of PRBs occupied by each interlace, the number of REs occupied by each PRB, the subcarrier of the first object Interval SCS; and/or,
  • the first maximum transmission power and the second maximum transmission power based on the PSD condition and at least one of the third maximum transmit power is obtained based on the maximum transmit power Y of every N1 PRB PRBs and second information.
  • the second information includes at least one of the following: the number of interleaves occupied by the PSSCH and the number of interlaces per N1 PRB. The number of PRBs occupied by interleaving; and/or,
  • the first maximum transmission power and the second maximum transmission power based on the PSD condition At least one of the power and the third maximum transmit power is obtained based on the maximum transmit power Y per Z unit width and third information.
  • the third information includes at least one of the following: the number of sub-channels occupied by the PSSCH, The number of PRBs occupied by each sub-channel, the number of REs occupied by each PRB, the sub-carrier spacing SCS of the first object; and/or,
  • the first maximum transmission power and the second maximum transmission power based on the PSD condition At least one of the power and the third maximum transmit power is obtained based on the maximum transmit power Y of every N4 PRB PRBs and fourth information.
  • the fourth information includes at least one of the following: the number of subchannels occupied by the PSSCH and the number of PRBs occupied by each sub-channel; and/or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition and at least one of the third maximum transmit power is obtained based on the maximum transmit power Y per N7 PRB PRBs and the number of PRBs occupied by PSSCH; and/or,
  • the first maximum transmission power and the second maximum transmission power based on the PSD condition At least one of the power and the third maximum transmit power is obtained based on the maximum transmit power Y per Z unit width and sixth information.
  • the sixth information includes at least one of the following: the number of RB sets occupied by the PSSCH, The number of PRBs occupied by each RB set, the number of REs occupied by each PRB, and the subcarrier spacing SCS of the first object; and/or,
  • the first maximum transmission power and the second maximum transmission power based on the PSD condition At least one of the power and the third maximum transmit power is the maximum transmit power based on every N10 PRB PRBs Y and seventh information, the seventh information includes at least one of the following: the number of RB sets occupied by PSSCH, and the number of PRBs occupied by each RB set.
  • the first maximum transmit power based on the PSD condition, the second At least one of the maximum transmit power and the third maximum transmit power is obtained based on the frequency domain resource width occupied by the PSSCH and the maximum transmit power Y within each X unit width.
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition
  • At least one of the transmit power and the third maximum transmit power is obtained based on the maximum transmit power Y per unit width of The number of PRBs occupied by each interlace, the number of REs occupied by each PRB, the subcarrier spacing SCS of the first object; and/or,
  • the first maximum transmit power, the second maximum transmit power and the third maximum transmit power based on the PSD condition At least one of the three maximum transmit powers is obtained based on the maximum transmit power Y of every N2 PRB PRBs and second information.
  • the second information includes at least one of the following: the number of interleaves occupied by PSSCH and each interlace Number of PRBs occupied; and/or,
  • the first maximum transmit power, the second maximum transmit power based on the PSD condition and At least one of the third maximum transmit powers is obtained based on the maximum transmit power Y per unit width of The number of PRBs occupied by the channel, the number of REs occupied by each PRB, and the subcarrier spacing SCS of the first object; and/or,
  • the first maximum transmit power, the second maximum transmit power based on the PSD condition and At least one of the third maximum transmit powers is obtained based on the maximum transmit power Y of every N5 PRBs and fourth information.
  • the fourth information includes at least one of the following: the number of sub-channels occupied by the PSSCH and the number of sub-channels occupied by each PSSCH. The number of PRBs occupied by the sub-channel; and/or,
  • the first maximum transmit power, the second maximum transmit power and the third maximum transmit power based on the PSD condition At least one of the three maximum transmit powers is obtained based on the maximum transmit power Y per unit width of The number of REs, the subcarrier spacing SCS of the first object; and/or,
  • the first maximum transmit power, the second maximum transmit power and the third maximum transmit power based on the PSD condition
  • At least one of the three maximum transmit powers is the maximum transmit power Y based on every N8 PRB PRBs, the number of PRBs occupied by PSSCH; and/or,
  • the first maximum transmit power, the second maximum transmit power based on the PSD condition and At least one of the third maximum transmit power is obtained based on the maximum transmit power Y per X unit width and sixth information.
  • the sixth information includes at least one of the following: the number of RB sets occupied by PSSCH, each The number of PRBs occupied by the RB set, the number of REs occupied by each PRB, and the subcarrier spacing SCS of the first object; and/or,
  • the first maximum transmit power, the second maximum transmit power based on the PSD condition and At least one of the third maximum transmit power is obtained based on the maximum transmit power Y of every N11 PRBs and seventh information.
  • the seventh information includes at least one of the following: the number of RB sets occupied by PSSCH, each The number of PRBs occupied by each RB set.
  • the first maximum transmit power allowed by the terminal is the minimum value of the first maximum transmit power determined based on the eighth information and the first maximum transmit power based on the PSD condition;
  • the eighth information includes at least one of the following:
  • processor 1010 is specifically used for:
  • the minimum value in the target information is used as the transmit power of the PSSCH.
  • processor 1010 is specifically used for:
  • the target information includes the first maximum transmit power based on the PSD condition and the first power
  • the minimum value of the first maximum transmit power based on the PSD condition and the first power is taken as The transmit power of the PSSCH;
  • the target information includes the first maximum transmission power
  • the third maximum transmission power based on the PSD condition and the first power are The minimum value among the power and the first power is used as the transmit power of the PSSCH;
  • the target information includes the first maximum transmission power, the second maximum transmission power allowed by the terminal and the first power, the first maximum transmission power allowed by the terminal, the second maximum transmission power and the The minimum value of the first power is used as the transmit power of the PSSCH;
  • the target information includes the first maximum transmission power, the second maximum transmission power, the third maximum transmission power and the first power allowed by the terminal, the first maximum transmission power allowed by the terminal, second most The minimum value among the maximum transmit power, the third maximum transmit power and the first power is used as the transmit power of the PSSCH.
  • N2 PRB , N5 PRB , and N8 PRB are obtained according to at least one of the following:
  • PSD condition SCS of first object.
  • the target information includes at least one of the following: the first maximum transmission power allowed by the terminal, the first maximum transmission power based on the PSD condition allowed by the terminal, the fourth maximum transmission power, the first power , the maximum number of PSFCHs sent, the first number of PSFCHs that need to be sent simultaneously, and the priority of PSFCHs, the processor 1010 is specifically used to:
  • the transmit power of each PSFCH and/or the second number of PSFCHs that can be transmitted simultaneously is determined based on the target information; the first power is the transmit power of each PSFCH obtained based on path loss; the power control information includes the The transmit power of PSFCHs and/or the second number of PSFCHs that can be transmitted simultaneously.
  • At least one of the first maximum transmit power and the second maximum transmit power based on the PSD condition is obtained based on at least one of the following:
  • PSD conditions frequency domain resources occupied by PSFCH that need to be sent simultaneously
  • the PSD condition means that the transmit power within each X unit width does not exceed Y.
  • the frequency domain resources include at least one of the following:
  • At least one interlace and at least one physical resource block PRB are at least one interlace and at least one physical resource block PRB.
  • the first maximum transmit power based on the PSD condition At least one item of the second maximum transmit power is obtained based on the frequency domain resource width occupied by the PSFCH and the maximum transmit power Y within each Z unit width.
  • the first maximum transmit power based on the PSD condition the At least one of the two maximum transmit powers is obtained based on the maximum transmit power Y per Z unit width and ninth information.
  • the ninth information includes at least one of the following: the number of interleaves occupied by PSFCH, the number of interleaves occupied by each interleave. The number of PRBs occupied, the number of REs occupied by each PRB, the subcarrier spacing SCS of the second object; and/or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one of them is obtained based on the maximum transmission power Y of every N1 PRB PRBs and the tenth information.
  • the tenth information includes at least one of the following: the number of interleaves occupied by PSFCH and the PRBs occupied by each interlace. number; and/or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one of them is obtained based on the maximum transmit power Y per Z unit width and the eleventh information.
  • the eleventh information includes at least one of the following: the number of PRBs occupied by PSFCH, the RE occupied by each PRB. number, the subcarrier spacing SCS of the second object; and/or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one of them is the number of PRBs occupied by PSFCH based on the maximum transmit power Y per N7 PRBs of PRBs; and/or,
  • the first maximum transmission power and the second maximum transmission power based on PSD conditions At least one item in the power is obtained based on the maximum transmission power Y per Z unit width and twelfth information.
  • the twelfth information includes at least one of the following:, the number of RB sets occupied by PSFCH, each RB The number of PRBs occupied by the set, the number of REs occupied by each PRB, and the subcarrier spacing SCS of the second object; and/or,
  • the first maximum transmission power and the second maximum transmission power based on PSD conditions At least one item in the power is obtained based on the maximum transmission power Y of every N10 PRBs and the thirteenth information.
  • the thirteenth information includes at least one of the following: the number of RB sets occupied by PSFCH, each RB The number of PRBs occupied by the collection.
  • the first maximum transmit power based on the PSD condition the second At least one item of the maximum transmit power is obtained based on the frequency domain resource width occupied by the PSFCH and the maximum transmit power Y within each unit width of X.
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one item in the transmit power is obtained based on the maximum transmit power Y per X unit width and ninth information.
  • the ninth information includes at least one of the following: the number of interleaves occupied by PSFCH, the The number of PRBs, the number of REs occupied by each PRB, the subcarrier spacing SCS of the second object; and/or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one item is obtained based on the maximum transmission power Y of every N2 PRB PRBs and the tenth information.
  • the tenth information includes at least one of the following: the number of interleaves occupied by PSFCH and the number of PRBs occupied by each interlace; and / or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one item is obtained based on the maximum transmit power Y per unit width of The subcarrier spacing SCS of the second object; and/or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one item is the maximum transmit power Y based on every N8 PRB PRBs, the number of PRBs occupied by PSFCH; and/ or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one item of is obtained based on the maximum transmit power Y per unit width of The number of PRBs, the number of REs occupied by each PRB, the subcarrier spacing SCS of the second object; and/or,
  • the first maximum transmit power and the second maximum transmit power based on the PSD condition At least one item of is obtained based on the maximum transmit power Y of every N11 PRB PRBs and the thirteenth information.
  • the thirteenth information includes at least one of the following: the number of RB sets occupied by PSFCH, the number of RB sets occupied by each RB set. The number of PRBs occupied.
  • the transmission power of each PSFCH is the first power
  • the second quantity is the first quantity
  • the first number is less than or equal to the maximum transmission number of PSFCH, and the first power of the first number is greater than the first maximum transmission power or the fourth maximum transmission power based on the PSD condition
  • the first number that can be transmitted simultaneously The second number of PSFCHs is determined from the first number of PSFCHs according to the priority of the PSFCH; the second number of first powers are less than or equal to the first maximum transmit power or the fourth maximum transmit power based on the PSD condition; each The transmit power of the PSFCH is the minimum value of the third power and the first power; and/or,
  • the transmission of each PSFCH The power is the first power
  • the second number is the maximum number of PSFCHs to send, where the maximum number of PSFCHs to send is determined by the terminal from the first number of PSFCHs according to the priority of the PSFCH; and/ or,
  • the said first number that can be transmitted simultaneously The second number of PSFCHs is determined from the maximum transmission number of PSFCHs according to the priority of the PSFCH; the transmission power of the second number of PSFCHs does not exceed the first maximum transmission power or the fourth maximum transmission power based on the PSD condition; each The transmission power of the PSFCH is the minimum value of the third power and the first power, wherein the maximum number of PSFCHs to be transmitted is determined by the terminal from the first number of PSFCHs according to the priority of the PSFCH; and/or
  • the said first number that can be transmitted simultaneously The second number of PSFCHs is determined from the maximum number of PSFCHs to be sent according to the priority of the PSFCH; The second number of first powers does not exceed the first maximum transmit power or the fourth maximum transmit power based on the PSD condition; the transmit power of each PSFCH is the minimum value of the third power and the first power, where, The maximum number of PSFCHs to be sent is determined by the terminal from the first number of PSFCHs according to the priority of the PSFCH; and/or
  • the third power is the power of the first maximum transmit power or the fourth maximum transmit power based on the PSD condition evenly distributed to the second number of PSFCHs.
  • each The transmit power of PSFCHs is the first power, and the second number is the first number;
  • the transmission power of each PSFCH is The minimum value of the first power and the second power
  • the second power is the maximum transmission power of each PSFCH based on the PSD condition
  • the second number of PSFCHs that can be transmitted simultaneously is based on the priority of the PSFCH. Determined in a first number of PSFCHs; the second number of first powers are less than or equal to the minimum of the first maximum transmit power or the fourth maximum transmit power based on PSD conditions; and/or,
  • the transmission power of each PSFCH is The minimum value of the first power and the second power
  • the second power is the maximum transmission power of each PSFCH based on the PSD condition
  • the second number of PSFCHs that can be transmitted simultaneously is based on the priority of the PSFCH. Determined in the first number of PSFCHs; the transmission power of the second number of PSFCHs is less than or equal to the minimum of the first maximum transmission power or the fourth maximum transmission power based on the PSD condition; and/or,
  • the transmission of each PSFCH The power is the first power, and the second number is the maximum number of PSFCHs to send; the maximum number of PSFCHs to send is determined by the terminal from the first number of PSFCHs according to the priority of PSFCH; and / or,
  • the transmission power of each PSFCH is The minimum value of the first power and the second power
  • the second power is the maximum transmission power of each PSFCH based on the PSD condition
  • the second number of PSFCHs that can be transmitted simultaneously is the maximum transmission power based on the priority of the PSFCH.
  • the transmission power of the second number of PSFCHs determined by the number of PSFCHs sent does not exceed the minimum value of the first maximum transmission power or the fourth maximum transmission power based on the PSD condition.
  • the maximum number of PSFCHs to send is determined by the terminal from the first number of PSFCHs according to the priority of the PSFCHs.
  • processor 1010 is also configured to perform at least one of the following actions:
  • the transmission power of each PSFCH and/or the second number of PSFCHs that can be transmitted simultaneously is determined based on at least one of the following:
  • the first maximum transmission power allowed by the terminal the first power, the maximum number of PSFCHs to send, the first number of PSFCHs that need to be sent simultaneously, and the priority of PSFCHs.
  • the second power is obtained according to at least one of the following:
  • the first number of PSFCH is the first number of PSFCH.
  • the second number of PSFCHs is the second number of PSFCHs.
  • the second power is obtained according to at least one of the following:
  • PSD conditions frequency domain resources occupied by the second number of PSFCHs; frequency domain resources occupied by the first number of PSFCHs.
  • the target information includes at least one of the following: a first maximum transmission power allowed by the terminal, a first maximum transmission power based on PSD conditions allowed by the terminal, a second maximum transmission power, a first power
  • the power control information includes transmit power
  • the processor 1010 is specifically configured to:
  • the transmission power of the side link synchronization signal block S-SSB is determined based on the target information.
  • processor 1010 is specifically used to:
  • the minimum value in the target information is used as the transmit power of the S-SSB.
  • processor 1010 is specifically used to:
  • the target information includes the first maximum transmit power based on the PSD condition and the first power
  • the minimum value of the first maximum transmit power based on the PSD condition and the first power is taken as The transmit power of the S-SSB
  • the target information includes the first maximum transmission power, the second maximum transmission power allowed by the terminal and the first power, the first maximum transmission power allowed by the terminal, the second maximum transmission power and the The minimum value of the first powers is used as the transmit power of the S-SSB.
  • the first maximum transmit power and the second maximum transmit power based on PSD conditions are obtained based on at least one of the following:
  • PSD conditions frequency domain resources occupied by S-SSB
  • the PSD condition means that the transmit power within each X unit width does not exceed Y.
  • the frequency domain resource includes at least one physical resource block PRB.
  • At least one of the first maximum transmit power and the second maximum transmit power based on the PSD condition is obtained based on the frequency domain resource width occupied by the S-SSB and the maximum transmit power Y within each X unit width. of.
  • At least one of the first maximum transmission power and the second maximum transmission power based on PSD conditions It is obtained based on the maximum transmit power Y within each unit width of , and SCS of S-SSB.
  • Embodiments of the present application also provide a readable storage medium, with programs or instructions stored on the readable storage medium.
  • the program or instructions are executed by a processor, each process of the above-mentioned side-link power control method embodiment is implemented. And can achieve the same technical effect. To avoid repetition, they will not be described again here.
  • the processor is the processor in the terminal described in the above embodiment.
  • the readable storage medium includes computer readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, etc.
  • An embodiment of the present application further provides a chip.
  • the chip includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the power control of the above-mentioned side link.
  • chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.
  • Embodiments of the present application further provide a computer program/program product, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to realize the power of the above-mentioned side link.
  • Each process of the control method embodiment can achieve the same technical effect. To avoid duplication, it will not be described again here.
  • Embodiments of the present application also provide a communication system, including: multiple terminals and network side equipment.
  • the terminals can be used to perform the steps of the power control method of the side link as described above.
  • the multiple terminals communicate through the side link.
  • the network side device may be configured to perform the steps of the side link power control method as described above.
  • the disclosed devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or may be integrated into another system, or some features may be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • 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 methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation.
  • the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology.
  • the computer software product is stored in a storage medium (such as ROM/RAM, disk , CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.
  • modules, units, and subunits can be implemented in one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processor (DSP), Digital Signal Processing Device (DSP Device, DSPD) ), programmable logic device (Programmable Logic Device, PLD), field-programmable gate array (Field-Programmable Gate Array, FPGA), general-purpose processor, controller, microcontroller, microprocessor, used to execute the disclosure other electronic units or combinations thereof with the above functions.
  • ASIC Application Specific Integrated Circuits
  • DSP Digital Signal Processor
  • DSP Device Digital Signal Processing Device
  • DSPD Digital Signal Processing Device
  • PLD programmable logic device
  • FPGA field-programmable gate array
  • controller microcontroller, microprocessor
  • the technology described in the embodiments of the present disclosure can be implemented through modules (such as procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure.
  • Software code may be stored in memory and executed by a processor.
  • the memory can be implemented in the processor or external to the processor.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

La présente demande appartient au domaine technique des communications. Sont divulgués un procédé de commande de puissance pour une liaison latérale, et un terminal. Le procédé de commande de puissance pour une liaison latérale dans les modes de réalisation de la présente demande comprend les étapes suivantes : un terminal détermine des informations de commande de puissance d'un canal ou d'un signal dans une liaison latérale sur la base d'informations cibles, les informations cibles comprenant au moins l'un des éléments suivants : une première puissance de transmission maximale autorisée par le terminal, une première puissance de transmission maximale basée sur la condition PSD autorisée par le terminal, une deuxième puissance de transmission maximale basée sur la condition PSD, une troisième puissance de transmission maximale qui est basée sur une priorité de transmission et un niveau CBR et est sous gestion d'encombrement, une quatrième puissance de transmission maximale, une première puissance, un nombre maximal de PSFCH pour la transmission, un premier nombre de PSFCH qui doivent être transmis simultanément, et la priorité d'un PSFCH ; et la première puissance est une puissance de transmission, du canal ou du signal, qui est obtenue sur la base d'une perte de trajet et/ou de la première puissance de transmission maximale et/ou de la troisième puissance de transmission maximale.
PCT/CN2023/112661 2022-08-12 2023-08-11 Procédé de commande de puissance pour liaison latérale, et terminal WO2024032786A1 (fr)

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CN202310457592.9A CN117596655A (zh) 2022-08-12 2023-04-24 侧链路的功率控制方法及终端

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