CN111436110A - Side link power control method and terminal - Google Patents
Side link power control method and terminal Download PDFInfo
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- CN111436110A CN111436110A CN201910028353.5A CN201910028353A CN111436110A CN 111436110 A CN111436110 A CN 111436110A CN 201910028353 A CN201910028353 A CN 201910028353A CN 111436110 A CN111436110 A CN 111436110A
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- 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
- H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
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- 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
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Abstract
The embodiment of the application provides a side link power control method and a terminal, relates to the field of wireless communication, and provides a power sharing method for sending information by a terminal through a first transmission link and a second transmission link, so that the sum of the transmitting power of the first transmission link and the transmitting power of the second transmission link can be controlled not to exceed the maximum transmitting power of the terminal in the side link. The method comprises the following steps: acquiring a first maximum transmitting power and a second maximum transmitting power; if the terminal determines to send first information through a first transmission link in a frequency division multiplexing mode, sending second information through a second transmission link, and calculating first actual power and second actual power according to the first maximum transmission power and the second maximum transmission power; and if the sum of the first actual power and the second actual power is larger than a first power threshold, determining a first final power and a second final power according to the first actual power and the second actual power.
Description
Technical Field
The present application relates to the field of wireless communications, and in particular, to a side link power control method and a terminal.
Background
With the continuous development of wireless communication technology, after a long Term Evolution (L ong Term Evolution, L TE) network, a fifth generation mobile communication (5G) technology, namely, a New Radio Interface (NR) network with larger data capacity and faster data processing speed, is introduced in the third generation partnership project.
If L TE network and NR network are deployed simultaneously, the terminal in the sidelink communicates in frequency division duplex FDD mode, and the sum of the transmission power of L TE network and the transmission power of NR network of the terminal may be greater than the maximum transmission power of the terminal, but there is no method for controlling the power of L TE network and NR network of the terminal in the sidelink.
Disclosure of Invention
The embodiment of the application provides a side link power control method and a terminal, and provides a power sharing method for sending information by a terminal through a first transmission link and a second transmission link, so that the sum of the transmission power of the first transmission link and the transmission power of the second transmission link can be controlled not to exceed the maximum transmission power of the terminal in the side link.
In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:
in a first aspect, an embodiment of the present application provides a method for controlling side link power, where the method includes: acquiring a first maximum transmission power and a second maximum transmission power, wherein the first maximum transmission power is the maximum transmission power of a terminal for sending first information through a first transmission link, and the second maximum transmission power is the maximum transmission power of the terminal for sending second information through a second transmission link; if the terminal determines to send the first information through the first transmission link in a frequency division multiplexing mode, sending the second information through the second transmission link, and calculating first actual power and second actual power according to the first maximum transmission power and the second maximum transmission power, wherein the first actual power is the actual power of the terminal for sending the first information through the first transmission link in the frequency division multiplexing mode, and the second actual power is the actual power of the terminal for sending the second information through the second transmission link in the frequency division multiplexing mode; and if the sum of the first actual power and the second actual power is greater than a first power threshold, determining a first final power and a second final power according to the first actual power and the second actual power, wherein the first final power is the final transmission power of the terminal for sending the first information through the first transmission link, and the second final power is the final transmission power of the terminal for sending the second information through the second transmission link. Based on this scheme, the terminal can implement controlling in the sidelink that the sum of the transmit powers of the first transmission link and the second transmission link does not exceed the maximum transmit power of the terminal.
With reference to the first aspect, in a possible implementation manner, determining a first final power and a second final power according to the first actual power and the second actual power includes: reducing the second actual power so that the sum of the first actual power and the reduced second actual power is less than or equal to a first power threshold; determining the first actual power as a first final power; and determining the reduced second actual power as a second final power. Based on the scheme, the terminal can control the sum of the transmission power of the first transmission link and the transmission power of the second transmission link not to exceed the maximum transmission power of the terminal in the sidelink by reducing the second actual power.
With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner, the method further includes: acquiring a first parameter, wherein the first parameter is determined according to the QoS; acquiring a first priority level corresponding to the first parameter; obtaining a first difference value, wherein the first difference value is a difference between the second actual power and the second final power; and if the first difference is greater than or equal to a first parameter threshold corresponding to the first priority level, the terminal stops sending the second information. Based on the scheme, the terminal can control the sum of the transmission power of the first transmission link and the second transmission link not to exceed the maximum transmission power of the terminal in the sidelink by not sending the second information.
With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner, determining a first final power and a second final power according to the first actual power and the second actual power includes: if the second information sent by the terminal through the second transmission link is prior to the first information sent by the terminal through the first transmission link in the time domain, reducing the first actual power so that the sum of the reduced first actual power and the second actual power is less than or equal to a first power threshold; determining the reduced first actual power as a first final power; determining the second actual power as a second final power; or, if the first information sent by the terminal through the first transmission link is prior to the second information sent by the terminal through the second transmission link in the time domain, reducing the second actual power, so that the sum of the first actual power and the reduced second actual power is less than or equal to the first power threshold; determining the first actual power as a first final power; and determining the reduced second actual power as a second final power. Based on the scheme, the terminal can determine to reduce the first actual power or reduce the second actual power incidentally according to the sequence of the first information and the second information in the time domain, and further realize that the sum of the transmission powers of the first transmission link and the second transmission link does not exceed the maximum transmission power of the terminal in the sidelink.
With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner, the method further includes: acquiring a second priority level of the terminal, wherein the second priority level is a priority level determined according to QoS (quality of service); obtaining a second difference value, wherein the second difference value is the difference between the first actual power and the first final power; if the second difference is greater than or equal to a second parameter threshold corresponding to a second priority level, the terminal stops sending the first information; or acquiring a third parameter, wherein the third parameter is determined according to the QoS; acquiring a third priority level corresponding to the third parameter; obtaining a third difference value, wherein the third difference value is a difference between the second actual power and the second final power; and if the third difference is greater than or equal to a third parameter threshold corresponding to a third priority level, the terminal stops sending the second information. Based on the scheme, the terminal can control the sum of the transmission power of the first transmission link and the second transmission link not to exceed the maximum transmission power of the terminal in the sidelink by stopping sending the first information or the second information.
With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner, the first parameter threshold is a parameter threshold preset by the terminal or a parameter threshold configured by a higher layer signaling, where the higher layer signaling is system information block SIB signaling, master information block MIB signaling, or radio resource control RRC signaling. Based on the scheme, the terminal can judge whether to send the second information or not through the set first parameter threshold, so that the sum of the transmission power of the first transmission link and the transmission power of the second transmission link in the side link is controlled not to exceed the maximum transmission power of the terminal.
With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner, the first maximum transmission power and the second maximum transmission power are determined according to a first initial power and a second initial power, where the first initial power is an initial transmission power at which the terminal sends first information through the first transmission link, and the second initial power is an initial transmission power at which the terminal sends second information through the second transmission link. Based on the scheme, the terminal can determine the first maximum power and the second maximum power according to the first initial power and the second initial power, determine the first actual power and the second actual power according to the first maximum power and the second maximum power, and further determine the first final power and the second final power according to the first actual power and the second actual power, so that the situation that the sum of the transmitting powers of the first transmission link and the second transmission link does not exceed the maximum transmitting power of the terminal in the sidelink is achieved.
With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner, the first initial power is configured by a first base station, and the first base station is a base station of the first transmission link; the second initial power is configured by a second base station, the second base station being a base station of the second transmission link. Based on the scheme, the terminal can receive first initial power sent by a first base station, receive second initial power sent by a second base station, determine first maximum power and second maximum power according to the first initial power and the second initial power, determine first actual power and second actual power according to the first maximum power and the second maximum power, and further determine first final power and second final power according to the first actual power and the second actual power, so that the sum of the transmitting powers of a first transmission link and a second transmission link is controlled not to exceed the maximum transmitting power of the terminal in a sidelink.
With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner, before obtaining the first maximum transmission power and the second maximum transmission power, the method further includes: acquiring first initial power and second initial power, wherein the first initial power is initial transmitting power for the terminal to transmit first information through the first transmission link, and the second initial power is initial transmitting power for the terminal to transmit second information through the second transmission link; if the sum of the first initial power and the second initial power is larger than a second power threshold, the terminal determines to use time division multiplexing or code division multiplexing to send first information through a first transmission link and send second information through a second transmission link, wherein the second power threshold is PPowerClassAnd/or PEMAXIs determined wherein PPowerClassFor representing the maximum power, P, of the terminal defined according to the type of the terminalEMAXUsed to indicate the maximum power allowed by the terminal for RRC signaling configuration. Based on the scheme, the terminal can also determine that the first information is sent through the first transmission link and the second information is sent through the second transmission link in a time division multiplexing or code division multiplexing mode, so that the sum of the transmission power of the first transmission link and the transmission power of the second transmission link is controlled not to exceed the maximum transmission power of the terminal in the side link.
With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner, the first power threshold is set by PPowerClass、PEMAXAnd PFDMIs determined by at least one of (1), wherein PPowerClassFor indicating the terminal defined according to its typeMaximum power, PEMAXMaximum power allowed by the terminal, P, for representing RRC signaling configurationFDMThe terminal is used for indicating the maximum power of the terminal defined when the terminal transmits information in a frequency division multiplexing mode. Based on the scheme, the terminal can be started by PPowerClass、PEMAXAnd PFDMThe terminal may determine the first final power and the second final power according to the first actual power and the second actual power, if the sum of the first actual power and the second actual power is greater than or equal to the first power threshold, and then control the sum of the transmit powers of the first transmission link and the second transmission link not to exceed the maximum transmit power of the terminal in the sidelink.
With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner, the first maximum transmission power is less than or equal to a first initial power, the second maximum transmission power is less than or equal to a second initial power, the first initial power is an initial transmission power at which the terminal sends the first information through the first transmission link, and the second initial power is an initial transmission power at which the terminal sends the second information through the second transmission link. Based on the scheme, the terminal can limit that the first actual power calculated according to the first maximum transmission power is smaller than the first initial power and the second actual power calculated according to the second maximum transmission power is smaller than the second initial power by limiting the first maximum transmission power to be smaller than or equal to the first initial power and the second maximum transmission power to be smaller than or equal to the second initial power, so that the sum of the first final power determined according to the first actual power and the second final power determined according to the second actual power does not exceed the maximum transmission power of the terminal.
In a second aspect, an embodiment of the present application provides a method for controlling side link power, where the method includes: if the terminal determines to send the first information through the first transmission link in a frequency division multiplexing mode, sending the second information through the second transmission link, and acquiring a first priority level of the terminal, wherein the first priority level is a priority level determined according to QoS (quality of service); acquiring a first parameter, wherein the first parameter is determined according to QoS; acquiring a second priority level corresponding to the first parameter; and determining a first reserved power and a second reserved power according to the first priority level and the second priority level, wherein the first reserved power is the lowest transmission power of the terminal for sending the first information through the first transmission link, and the second reserved power is the lowest transmission power of the terminal for sending the second information through the second transmission link. Based on this scheme, the terminal can transmit the first information through the first transmission link using the first reserved power and/or transmit the second information through the second transmission link using the second reserved power, thereby realizing control of the sum of the transmission powers of the first transmission link and the second transmission link not to exceed the maximum transmission power of the terminal in the sidelink.
With reference to the second aspect, in a possible implementation manner, determining a first reserved power and a second reserved power according to the first priority class and the second priority class includes: determining the proportion m of first reserved power in a first power threshold and the proportion n of second reserved power in the first power threshold according to the first priority level and the second priority level, wherein m + n is less than or equal to 1, m is more than 0 and less than 1, and n is more than 0 and less than 1; a first reserved power and a second reserved power are determined according to the first power threshold, m and n. Based on the scheme, the terminal can determine the first reserved power and the second reserved power by determining the proportion m of the first reserved power to the first power threshold and the proportion n of the second reserved power to the first power threshold, so as to control the sum of the transmission powers of the first transmission link and the second transmission link not to exceed the maximum transmission power of the terminal in the sidelink.
With reference to the second aspect and the foregoing possible implementation manners, in another possible implementation manner, determining, according to the first priority class and the second priority class, a ratio m of a first reserved power to a first power threshold and a ratio n of a second reserved power to the first power threshold includes: and determining the proportion m of the first reserved power to the first power threshold and the proportion n of the second reserved power to the first power threshold according to the difference between the first priority level and the second priority level. Based on the scheme, the terminal can determine the proportion m of the first reserved power in the first power threshold and the proportion n of the second reserved power in the first power threshold according to the difference between the first priority level and the second priority level, so as to determine the first reserved power and the second reserved power, and further realize that the sum of the transmission powers of the first transmission link and the second transmission link in the sidelink is controlled not to exceed the maximum transmission power of the terminal.
With reference to the second aspect and the foregoing possible implementation manners, in another possible implementation manner, determining a first reserved power and a second reserved power according to the first priority level and the second priority level further includes: determining the proportion m of first reserved power in a first power threshold and the proportion n of second reserved power in the first power threshold according to the first priority level, the second priority level, a first priority level threshold corresponding to the first priority level and a second priority level threshold corresponding to the second priority level, wherein m + n is less than or equal to 1, 0< m <1, and 0< n < 1; a first reserved power and a second reserved power are determined according to the first power threshold, m and n. Based on the scheme, the terminal can determine the proportion m of the first reserved power in the first power threshold and the proportion n of the second reserved power in the first power threshold according to the first priority level, the second priority level, the first priority level threshold corresponding to the first priority level and the second priority level threshold corresponding to the second priority level, and further control the sum of the transmission powers of the first transmission link and the second transmission link in the sidelink not to exceed the maximum transmission power of the terminal.
With reference to the second aspect and the foregoing possible implementation manners, in another possible implementation manner, the first power threshold is set by PPowerClass、PEMAXAnd PFDMIs determined by at least one ofIn, PPowerClassFor representing the maximum power, P, of the terminal defined according to the type of the terminalEMAXMaximum power allowed by the terminal, P, for representing RRC signaling configurationFDMThe terminal is used for indicating the maximum power of the terminal defined when the terminal transmits information in a frequency division multiplexing mode. Based on the scheme, the terminal can be started by PPowerClass、PEMAXAnd PFDMDetermines the first power threshold value, thereby determining a first reserved power and a second reserved power according to the first power threshold value, m and n, and further realizing that the sum of the transmission power of the first transmission link and the transmission power of the second transmission link does not exceed the maximum transmission power of the terminal in the sidelink.
In a third aspect, an embodiment of the present application provides a terminal, where the terminal has a function and a method for implementing the method and the function in the first aspect or the method and the function in the second aspect. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.
An embodiment of the present application further provides a terminal, including: at least one processor, at least one memory, and a communication interface, the at least one memory, and the at least one processor being coupled; the terminal communicates with other devices through the communication interface, and the at least one memory is configured to store a computer program, such that the computer program, when executed by the at least one processor, implements the sidelink power control method as described in the first aspect and its various possible implementations, or the sidelink power control method as described in the second aspect and its various possible implementations.
Embodiments of the present application also provide a computer-readable storage medium, such as a computer non-transitory readable storage medium. Having stored thereon a computer program which, when run on a computer, causes the computer to perform any of the possible methods of the first aspect or any of the possible methods of the second aspect. For example, the computer may be at least one storage node.
Embodiments of the present application also provide a computer program product, which when run on a computer causes any of the methods provided in the first aspect or any of the methods provided in the second aspect to be performed. For example, the computer may be at least one storage node.
It is understood that any one of the terminal, the computer storage medium, the computer program product, and the like provided above is used for executing the corresponding method provided above, and therefore, the beneficial effects achieved by the method can refer to the beneficial effects in the corresponding method, and are not described herein again.
Drawings
Fig. 1 is a schematic diagram of symbol lengths corresponding to different subcarrier intervals according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of an FDD frame structure of an NR network according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of a TDD frame structure of an NR network according to an embodiment of the present application;
fig. 4 is a schematic view of V2X communication provided in an embodiment of the present application;
fig. 5 is a schematic diagram of a communication system architecture according to an embodiment of the present application;
fig. 6 is a schematic hardware structure diagram of a communication device according to an embodiment of the present application;
fig. 7 is a first flowchart illustrating a side link power control method according to an embodiment of the present disclosure;
fig. 8 is a second flowchart illustrating a side link power control method according to an embodiment of the present disclosure;
fig. 9A is a schematic flowchart illustrating a third method for controlling side link power according to an embodiment of the present disclosure;
fig. 9B is a fourth schematic flowchart of a side link power control method according to an embodiment of the present application;
fig. 10 is a schematic time domain diagram of information transmitted by the first transmission link and the second transmission link according to an embodiment of the present application;
fig. 11 is a fifth flowchart illustrating a side link power control method according to an embodiment of the present disclosure;
fig. 12 is a first schematic structural diagram of a terminal according to an embodiment of the present application;
fig. 13 is a schematic structural diagram of a terminal according to an embodiment of the present application;
fig. 14 is a schematic structural diagram of a terminal according to an embodiment of the present application.
Detailed Description
In a New Radio Interface (NR) network, a plurality of subcarrier intervals are introduced, and the subcarrier intervals can be 15kHz 2^ snAnd the value of n can be-2, -1, 0, 1, 2, 3, 4 and 5, so that the subcarrier interval can be between 3.75kHz and 480kHz according to the difference of the value of n. Different subcarrier spacings may correspond to different symbol lengths, subframe lengths and slot lengths, as shown in fig. 1, which is a schematic diagram of symbol lengths corresponding to subcarrier spacings of 15kHz, 30kHz and 60kHz, respectively.
In the NR network, one timeslot may include at least one of downlink transmission, guard interval GP and Uplink transmission, therefore, one timeslot may be divided into timeslot D L only slot containing downlink signals, timeslot D L centralized slot containing downlink signals, timeslot U L centralized slot containing Uplink signals and timeslot U L only slot containing Uplink signals, the base station and the terminal may communicate in a TDD or FDD operating manner, if the base station and the terminal communicate in an FDD operating manner, downlink D L and Uplink U L may operate on different carriers simultaneously, as shown in fig. 2, if the base station and the terminal communicate in a TDD operating manner, D L and U L may operate on the same carrier, as shown in fig. 3, where PUCCH is a Physical Uplink Control Channel (Physical Uplink Control Channel), if the terminal and the terminal 493 (terminal L g, terminal 82923) may also communicate in a network NR 4 through a network, or a network NR network.
For L dual connection of TE and NR, if a terminal configures a Master Cell Group (MCG) to use L TE wireless access and a Secondary Cell Group (SCG) to use NR wireless access, the terminal can configure maximum power P for MCG transmission through a higher layer parameter P-MaxEUTRALTEFor SCG transmission, the terminal may configure the maximum power P by a higher layer parameter P-NRNRThe terminal can use PLTEAs a constraint of the transmit power of the MCG, the terminal may use PNRThe maximum transmit power of the terminal through L TE network should be equal to or less than PLTEThe maximum transmission power of the terminal through the NR network should be equal to or less than PNRIf the terminal has L dynamic power sharing capability between the TE network and the NR network, the base station and the terminal can communicate in TDD mode or FDD mode, and if the terminal does not have L dynamic power sharing capability between the TE network and the NR network, the base station and the terminal can communicate in TDD mode.
When the terminal transmits the uplink signal by adopting an FDD working mode, the information transmitted by the terminal through the MCG is overlapped with the information transmitted by the terminal through the SCG on a time domain, and the sum of the power of the information transmitted by the terminal through the MCG and the power of the information transmitted by the terminal through the SCG exceeds the maximum power limit of the terminal, so that the power of the information transmitted by the terminal through the SCG can be reduced, and the sum of the power of the information transmitted by the terminal through the MCG and the power of the information transmitted by the terminal through the SCG does not exceed the maximum power limit of the terminal.
In Rel-14, Rel-15 and Rel-16 versions of the third generation partnership project, Vehicle networking (V2X) was established as a major application of Device to Device (D2D) technology. V2X is the communication for the side link. The V2X optimizes the specific application requirements of the V2X based on the existing D2D technology, further reduces the access delay of the V2X equipment, and solves the problem of resource conflict. As shown in fig. 4, V2X may include Vehicle to Vehicle communication (V2V), Vehicle to human communication (V2P), and Vehicle to Infrastructure communication (V2I). V2I also includes Vehicle to base station or Network communication (V2N), and the infrastructure includes terminal type infrastructure and base station type infrastructure, and the terminal type infrastructure is deployed at the roadside and is in a non-mobile state without regard to mobility; the base station-like infrastructure can provide timing synchronization, i.e., resource scheduling, to the vehicles with which it communicates.
When the terminal transmits information on the uplink and the Sidelink simultaneously, the terminal can determine whether to preferentially transmit the information on the uplink or the information on the Sidelink by comparing the value of the "priority" field of the Sidelink Control Information (SCI) transmitted by the Sidelink with the threshold configured by the higher layer.
For example, if the Sidelink Information and the uplink Information are both transmitted in the shared carrier spectrum, the terminal may indicate a level of a Sidelink Packet Priority (PPPP) through Sidelink Control Information (SCI), and if the PPPP level is greater than a preset PPPP threshold, the terminal may not transmit the uplink Information and preferentially transmit the Sidelink Information; if the grade of the PPPP is less than or equal to the preset PPPP threshold value, the terminal can not transmit the side link information and preferentially transmits the uplink information.
For another example, if the sidelink information is transmitted in the dedicated carrier spectrum, the terminal may indicate the PPPP level through the SCI, and if the PPPP level is greater than the preset PPPP threshold, the terminal may not transmit the uplink information or reduce the transmission power of the uplink, and preferentially transmit the sidelink information; if the PPPP level is less than or equal to the predetermined PPPP threshold, the terminal may not transmit the sidelink information or reduce the transmit power of the sidelink, and preferentially transmit the uplink information.
Based on the above, the present application provides a sidelink power control method and a terminal, which provide a power sharing method for the terminal to transmit information through a first transmission link and a second transmission link, and can control the sum of the transmission power of the terminal through the first transmission link and the second transmission link not to exceed the maximum transmission power of the terminal.
Fig. 5 is a schematic block diagram of a communication system 500 according to an embodiment of the present invention. In FIG. 5, a communication system 500 includes base stations 501-502 and terminals 503-505.
The base stations 501-502 are used for providing wireless access services for the terminals 503-505. Specifically, each base station corresponds to a service coverage area (which may also be referred to as a cell, as shown by the oval areas in fig. 5), and a terminal device entering the service coverage area can communicate with the base station through a wireless signal to receive a wireless access service provided by the base station. There may be overlap between service coverage areas of the base stations, and a terminal in the overlap area may receive wireless signals from multiple base stations, so that the terminal device may be simultaneously served by multiple base stations. For example, multiple base stations may use a coordinated multipoint (CoMP) technology to provide services for terminal devices in the above-mentioned overlapping areas. For example, as shown in fig. 5, the service coverage areas of the base station 501 and the base station 502 overlap, and the terminal 503 is located in the overlapping area, so that the base station 501 and the base station 502 can simultaneously provide service for the terminal 503, the terminal 503 can communicate with the terminal 504 through the network provided by the base station 501, and the terminal 503 can also communicate with the terminal 505 through the network provided by the base station 502.
The base station may be an eNB or an enodeb in long Term Evolution (L ong Term Evolution, L TE) (Evolution nodeb), and may also be a network device in a New Radio Interface (NR) or a network device in a future Evolution network.
The terminal may be a portable computer (e.g., a mobile phone), a notebook computer, a Personal Computer (PC), a wearable electronic device (e.g., a smart watch), a tablet computer, an Augmented Reality (AR) \ Virtual Reality (VR) device, a vehicle-mounted module, a vehicle-mounted computer, a vehicle-mounted chip, a vehicle-mounted communication system, a wireless terminal in industrial control, and the like.
It should be noted that the communication system 500 shown in fig. 5 is only for example and is not used to limit the technical solution of the present application. Those skilled in the art will appreciate that communication system 500 may include other devices in a particular implementation, and that the number of base stations and terminal devices may be configured according to particular needs.
Optionally, in the embodiment of the present application, each network element (for example, the base station 501 and the terminal 503) in fig. 5 may be implemented by one device, or implemented by multiple devices together, or implemented by one functional module in one device, which is not specifically limited in this embodiment of the present application. It is understood that the above functions may be either network elements in a hardware device, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (e.g., a cloud platform).
For example, the network elements in fig. 5 in the embodiment of the present application may be implemented by the communication device in fig. 6. Fig. 6 is a schematic diagram illustrating a hardware structure of a communication device according to an embodiment of the present application. The communication device 600 comprises a processor 601, a communication link 602, a memory 603 and at least one communication interface 604 (which is only exemplary in fig. 6 and includes the communication interface 604).
The processor 601 may be a general processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more ics for controlling the execution of programs in accordance with the present disclosure.
The communication link 602 may include a path for transmitting information between the aforementioned components.
The communication interface 604 may be any device, such as a transceiver, for communicating with other devices or communication networks, such as ethernet, Radio Access Network (RAN), wireless local area networks (W L AN), etc.
The memory 603 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory may be separate and coupled to the processor via a communication link 602. The memory may also be integral to the processor.
The memory 603 is used for storing computer-executable instructions for executing the present application, and is controlled by the processor 601 to execute the instructions. The processor 601 is configured to execute computer-executable instructions stored in the memory 603, so as to implement the side link power control method provided by the following embodiments of the present application.
Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application program codes, which are not specifically limited in the embodiments of the present application.
In particular implementations, processor 601 may include one or more CPUs such as CPU0 and CPU1 in fig. 6 as an example.
In particular implementations, communication device 600 may include multiple processors, such as processor 601 and processor 605 in fig. 6, for example, as an example. Each of these processors may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).
The method for controlling the power of the side link provided in the embodiment of the present application will be specifically described below with reference to fig. 5 to 6.
It should be noted that, in the following embodiments of the present application, names of messages between network elements or names of parameters in messages are only an example, and other names may also be used in a specific implementation, which is not specifically limited in this embodiment of the present application.
As shown in fig. 7, for the side link power control method provided in the embodiment of the present application, which is applied to a terminal, the side link power control method includes the following steps:
Optionally, the first maximum transmission power PCMAX1Can be PCMAXL1≤PCMAX1≤PCMAXH1，PCMAXL1＝Min{PEMAX-ΔTC，PPowerClass-Max(MPR+AMPR+ΔTIB+ΔTC+ΔTProSe，PMPR)，PRegulatory}，PCMAXH1＝Min{PEMAX，PPowerClass，PRegulatoryH, the second maximum transmit power PCMAX2The value range of (A) can be PCMAX L1 ≦ PCMAX2≤PCMAXH1，PCMAXL1＝Min{PEMAX-Δ，PPowerClass-Δ，PRegulatory}，PCMAXH1＝Min{PEMAX，PPowerClass，PRegulatoryIn which P isEMAXMaximum power allowed by the terminal, P, for representing radio resource control, RRC, signalling configurationPowerClassFor representing a maximum power of the terminal defined according to the type of the terminal, MPR for representing a power backoff parameter, AMPR for representing an additional power backoff parameter, PMPR for representing a power backoff in a specific case, PRegulatoryPower parameter, Δ T, for representing a vehicle-to-vehicle communication V2X terminalC、ΔTIB、ΔTProSeAnd Δ is a range adjustment parameter. The terminal may select the value of the first maximum transmit power within a value range of the first maximum transmit power, and the terminal may select the value of the second maximum transmit power within a value range of the second maximum transmit power. It should be noted that, if the first transmission link and the second transmission link are transmitted on the same subband, the first transmission link and the second transmission link need to consider additional AMPR in consideration of interference.
Optionally, before step 701, the method for controlling side link power may further include obtaining a first initial power and a second initial power, where the first initial power is an initial transmission power for the terminal to transmit the first information through the first transmission link, and the second initial power is an initial transmission power for the terminal to transmit the second information through the second transmission link.
Optionally, the first initial power may be configured by a first base station, and the first base station is a base station of the first transmission link; the second initial power may be configured by a second base station, the second base station being a base station of the second transmission link.
Optionally, the first maximum transmission power is less than or equal to a first initial power, and the second maximum transmission power is less than or equal to a second initial power.
Optionally, the first maximum transmission power and the second maximum transmission power may also be determined according to the first initial power and the second initial power. E.g. the first maximum transmission power PCMAX1Can also be PCMAXL2≤PCMAX1≤PCMAXH2，PCMAXL2＝Min{PEMAX-ΔTC，PPowerClass-Max(MPR+AMPR+ΔTIB+ΔTC+ΔTProSe，PMPR)，P1-ΔTC，PRegulatory}，PCMAXH2＝Min{PEMAX，PPowerClass，PRegulatory，P1H, the second maximum transmit power PCMAX2The value range of (b) can also be PCMAX L2 ≦ PCMAX2≤PCMAXH2，PCMAXL2＝Min{PEMAX-Δ，PPowerClass-Δ，P2-Δ，PRegulatory}，PCMAXH2＝Min{PEMAX，PPowerClass，PRegulatory，P2In which P is1For representing a first initial power, P2For representing the second initial power. P1The base station, which may be an L TE network, configures and transmits to the terminalOf (P)2The base station, which may be an NR network, configures for and transmits to the terminal. The terminal may select the value of the first maximum transmit power within a value range of the first maximum transmit power, and the terminal may select the value of the second maximum transmit power within a value range of the second maximum transmit power. It should be noted that, if the first transmission link and the second transmission link are transmitted on the same subband, the first transmission link and the second transmission link need to consider additional AMPR in consideration of interference.
Optionally, the terminal may calculate a first intermediate power according to parameters configured by a higher layer of the first transmission link, the transmission bandwidth, the path loss, and some power adjustment information, and compare the first intermediate power with the first maximum transmission power to obtain a first actual power, for example, a minimum value between the first intermediate power and the first maximum transmission power may be determined as the first actual power; the terminal may calculate a second intermediate power according to parameters configured by a higher layer of the second transmission link, a transmission bandwidth, a path loss, and some power adjustment information, and compare the second intermediate power with a second maximum transmission power to obtain a second actual power, for example, a minimum value of the second intermediate power and the second maximum transmission power may be determined as the second actual power.
Optionally, if the sum of the first initial power and the second initial power is greater than the second power threshold, the terminal may determine to send the first information through the first transmission link in a time division multiplexing, code division multiplexing, or frequency division multiplexing manner, and send the first information through the second transmission linkThe transmission link transmits the second information. Wherein the second power threshold may be defined by PPowerClassAnd/or PEMAXDetermining, e.g., the terminal may determine PPowerClassAnd PEMAXIs the second power threshold. Wherein, PPowerClassFor representing a maximum power, P, of the terminal defined according to the type of the terminalEMAXMaximum power allowed by the terminal for representing radio resource control, RRC, signaling configuration.
It should be noted that, the first base station, the second base station, or the terminal may configure the multiplexing mode used by the terminal, for example: time division multiplexing mode, code division multiplexing mode, or frequency division multiplexing mode. The first base station is a base station of a first transmission link and the second base station is a base station of a second transmission link.
Specifically, if the terminal determines to send the first information through the first transmission link in a time division multiplexing manner and send the second information through the second transmission link, the terminal may send the first information through the first transmission link using the first actual power and send the second information through the second transmission link using the second actual power.
Specifically, if the terminal determines to send the first information through the first transmission link in the code division multiplexing manner and send the second information through the second transmission link, the terminal may send the first information through the first transmission link using the first actual power, and may send the second information through the second transmission link using the second actual power in the orthogonal manner to the first information, where the orthogonal manner may be orthogonal to the sequence, orthogonal to the information, or other orthogonal manners.
Optionally, the first power threshold may be set by PPowerClass、PEMAXOr PFDMThe first power threshold may be the same as or different from the second power threshold. For example, the terminal may determine PPowerClass、PEMAXAnd PFDMIs the first power threshold, wherein PFDMThe terminal is used for representing the maximum power of the terminal defined when the terminal transmits information in a frequency division multiplexing mode.
Specifically, if the terminal determines to use a frequency division multiplexing method to send first information through a first transmission link and send second information through a second transmission link, and a sum of the first actual power and the second actual power is greater than a first power threshold, the terminal may determine a first final power and a second final power according to the first actual power and the second actual power.
In one possible implementation, determining a first final power and a second final power according to the first actual power and the second actual power includes: reducing the second actual power so that the sum of the first actual power and the reduced second actual power is less than or equal to a first power threshold; determining the first actual power as a first final power; and determining the reduced second actual power as a second final power.
Further, as shown in fig. 8, the side link power control method further includes steps 804 and 807.
It should be noted that the first parameter may be various types of parameters, for example, the first parameter may be a level of PPPP, and for example, the first parameter may be a value comprehensively mapped by the second base station according to the 5G QoS characteristic parameter, and for example, the first parameter may also be an index of a 5G QoS Indicator (5G QoS Indicator, 5QI) parameter set.
If the first parameter is the PPPP level, the terminal may indicate the first parameter through the SCI. The terminal prestores corresponding relations among the first parameters, k priority levels corresponding to the first parameters and k parameter thresholds corresponding to the k priority levels. In a specific implementation manner, the terminal may divide k priority levels for the first parameter, and pre-configure k parameter thresholds for the k priority levels of the first parameter; or, the terminal may classify the first parameter into k priority classes, and the second base station may configure k parameter thresholds for the k priority classes of the first parameter through higher layer signaling, where the second base station may be a base station of the second transmission link, and the higher layer signaling may be SIB signaling, MIB signaling, or RRC signaling.
As shown in table 1, a correspondence relationship among the first parameter, 4 priority levels corresponding to the first parameter, and 4 parameter thresholds corresponding to the 4 priority levels is shown. Among them, PPPP1 and PPPP2 correspond to priority level 1, PPPP3 and PPPP4 correspond to priority level 2, PPPP5 and PPPP6 correspond to priority level 3, and PPPP7 and PPPP8 correspond to priority level 4. The threshold value corresponding to priority level 1 is K1dB, the threshold value corresponding to the priority level 2 is K2dB, the threshold value corresponding to priority level 3 is K3dB, the threshold value corresponding to the priority level 4 is K4dB。
TABLE 1
If the first parameter is a value synthetically mapped by the second base station according to the 5G QoS characteristic parameter, the second base station may send the first parameter synthetically mapped according to the 5G QoS characteristic parameter to the terminal, where the 5G QoS characteristic parameter includes at least one of the following parameters: resource type, priority level, Packet Delay Budget (PDB), packet loss rate (PER), averaging window, Maximum Data Burst Volume (MDBV), and minimum required communication range (minimum required communication range). The terminal prestores corresponding relations among the first parameters, j priority levels corresponding to the first parameters and j parameter thresholds corresponding to the j priority levels. In a specific implementation manner, the terminal may divide j priority levels for the first parameter, and pre-configure j parameter thresholds for the j priority levels of the first parameter; or, the terminal may classify j priority levels for the first parameter, and the second base station may configure j parameter thresholds for the j priority levels of the first parameter through higher layer signaling, where the second base station may be a base station of the second transmission link, and the higher layer signaling may be SIB signaling, MIB signaling, or RRC signaling.
As shown in table 2, a correspondence relationship among the first parameter, 4 priority levels corresponding to the first parameter, and 4 parameter thresholds corresponding to the 4 priority levels is shown. Where 1 and 2 correspond to priority levels 1, 3 and 4 correspond to priority levels 2, 5 and 6 correspond to priority levels 3, and 7 and 8 correspond to priority level 4. The threshold corresponding to priority level 1 is J1dB, the threshold corresponding to priority level 2 is J2dB, the threshold corresponding to priority level 3 is J3dB, the threshold corresponding to priority level 4 is J4dB。
TABLE 2
| |
|
|
|
| 1，2 | 3，4 | 5，6 | 7，8 |
| J1dB | J2dB | J3dB | J4dB |
If the first parameter is an index of a 5QI parameter set, the terminal may divide the 5QI parameters into q sets, and assign an index number to each 5QI parameter set, where each 5QI parameter set may include a certain number of 5QI parameters, for example, the 5QI parameter set with the index number of 1 includes {1, 2, 3, 4, 5} and the 5QI parameter set with the index number of 2 includes {65, 66, 67, 68, 69 }. The terminal may indicate the first parameter through the SCI. The terminal prestores corresponding relations among the first parameters, q priority levels corresponding to the first parameters and q parameter thresholds corresponding to the q priority levels. In a specific implementation manner, the terminal may pre-configure q parameter thresholds for q priority levels of the first parameter; or, the second base station may configure q parameter thresholds for the q priority levels of the first parameter through higher layer signaling, where the second base station may be a base station of a second transmission link, and the higher layer signaling may be SIB signaling, MIB signaling, or RRC signaling.
As shown in table 3, a correspondence relationship among the first parameter, 6 priority levels corresponding to the first parameter, and 6 parameter thresholds corresponding to the 6 priority levels is shown. Wherein, the threshold value corresponding to the priority level 1 is Q1dB, the threshold corresponding to priority level 2 is Q2dB, the threshold value corresponding to priority level 3 is Q3dB, the threshold value corresponding to priority level 4 is Q4dB, priority level5 the corresponding threshold is Q5dB, the threshold corresponding to priority level 6 is Q6dB。
TABLE 3
It should be noted that the first difference may be various types of differences, for example, the first difference may be a difference between the second actual power and the second final power, and for example, the first difference may also be a difference between a Power Spectral Density (PSD) of the first transmission link and a PSD of the second transmission link.
Optionally, if the first difference is a difference between the PSD of the first transmission link and the PSD of the second transmission link, before step 806, the method further includes: and acquiring the PSD of the first transmission link and the PSD of the second transmission link.
Optionally, the terminal may obtain the PSD of the first transmission link according to a high-level configuration condition of the first transmission link, link channel state information, power adjustment information, and the like; the terminal can obtain the PSD of the second transmission link according to the high-level configuration condition of the second transmission link, the channel state information of the link, the power adjustment information, and the like.
It should be noted that the terminal stopping sending the second information is used to indicate that the terminal stops sending the second information before sending the second information, that is, the terminal does not send the second information.
For example, if the first parameter obtained by the terminal is PPPP3, according to table 1, the first priority level corresponding to PPPP3 is priority level 2, and the first parameter threshold corresponding to priority level 2 is K2dB, if the first difference is greater than or equal to K2dB, the terminal stops sending the second information, namely the terminal uses a first final power to send first information through a first transmission link, and the terminal does not send the second information; if the first difference is smaller than K2dB, the terminal sends first information through a first transmission link by using the first final power, and sends second information through a second transmission link by using the second final power.
Illustratively, if the first parameter mapped by the second base station according to the 5G QoS characteristic parameter is 5, the first priority class corresponding to 5 is priority class 3 according to table 2, and the first parameter threshold corresponding to priority class 3 is J3dB, if the first difference is larger than or equal to J3dB, the terminal stops sending the second information, namely the terminal uses a first final power to send first information through a first transmission link, and the terminal does not send the second information; if the first difference is less than J3dB, the terminal sends first information through a first transmission link by using the first final power, and sends second information through a second transmission link by using the second final power.
For example, if the first parameter obtained by the terminal is 2, according to table 3, the first priority level corresponding to 2 is priority level 2, and the first parameter threshold corresponding to priority level 2 is Q2dB, if the first difference is greater than or equal to Q2dB, the terminal stops sending the second information, namely the terminal uses a first final power to send first information through a first transmission link, and the terminal does not send the second information; if the first difference is smaller than Q2dB, the terminal sends the first information through the first transmission link by using the first final power and sends the first information through the second transmission by using the second final powerThe link transmits the second information.
In another possible implementation manner, determining a first final power and a second final power according to the first actual power and the second actual power includes: if the second information sent by the terminal through the second transmission link is prior to the first information sent by the terminal through the first transmission link in the time domain, reducing the first actual power so that the sum of the reduced first actual power and the second actual power is less than or equal to a first power threshold; determining the reduced first actual power as a first final power; determining the second actual power as a second final power; or, if the first information sent by the terminal through the first transmission link is prior to the second information sent by the terminal through the second transmission link in the time domain, reducing the second actual power, so that the sum of the first actual power and the reduced second actual power is less than or equal to the first power threshold; determining the first actual power as a first final power; and determining the reduced second actual power as a second final power.
Further, as shown in FIG. 9A and FIG. 9B, the side link power control method further includes steps 908-910 or steps 911-914.
Illustratively, the second priority level of the terminal may be a PPPP level, and the terminal may indicate the second priority level through the SCI. The terminal stores the priority levels of p pieces of first information and the corresponding relation of p parameter thresholds corresponding to the priority levels of the p pieces of first information in advance. In a specific implementation manner, the terminal may configure p parameter thresholds for priority levels of p pieces of first information; or, the first base station may configure p parameter thresholds for the priority levels of the p first information through higher layer signaling, where the first base station may be a base station of the first transmission link, and the higher layer signaling may be SIB signaling, MIB signaling, or RRC signaling.
As shown in Table 4, the priorities of 8 first information are shownThe level and the corresponding relation of 8 parameter thresholds corresponding to the priority levels of the 8 pieces of first information. Wherein the threshold value corresponding to PPPP1 is P1dB, the threshold value for PPPP2 is P2dB, the threshold value for PPPP3 is P3dB, the threshold value for PPPP4 is P4dB, the threshold value for PPPP5 is P5dB, the threshold value for PPPP6 is P6dB, the threshold value for PPPP7 is P7dB, the threshold value for PPPP8 is P8dB。
TABLE 4
| PPPP1 | PPPP2 | PPPP3 | PPPP4 | PPPP5 | PPPP6 | PPPP7 | PPPP8 |
| P1dB | P2dB | P3dB | P4dB | P5dB | P6dB | P7dB | P8dB |
Optionally, the second parameter threshold is a parameter threshold preset by the terminal or a parameter threshold configured by a higher layer signaling, where the higher layer signaling is SIB signaling, MIB signaling, or RRC signaling.
It should be noted that the terminal stopping sending the first information is used to indicate that the terminal stops sending the first information before sending the first information, that is, the terminal does not send the first information.
Illustratively, if the second priority level obtained by the terminal is PPPP1, according to table 4, the second parameter threshold corresponding to PPPP1 is P1dB, if the second difference is greater than or equal to P1dB, the terminal stops sending the first information, that is, the terminal sends second information through a second transmission link using a second final power, and the terminal does not send the first information; if the first difference is less than P1dB, the terminal sends first information through a first transmission link by using the first final power, and sends second information through a second transmission link by using the second final power.
And 911, acquiring a third parameter, wherein the third parameter is determined according to the QoS.
Illustratively, the third parameter may be a value synthetically mapped by the second base station according to a 5G QoS characteristic parameter, and the second base station may transmit the third parameter synthetically mapped according to the 5G QoS characteristic parameter to the terminal, where the 5G QoS characteristic parameter includes at least one of the following parameters: resource type, priority level, PDB, PER, averaging window, MDBV, and minimum required communication range. The terminal prestores the corresponding relation among the third parameter, r priority levels corresponding to the third parameter and r parameter thresholds corresponding to the r priority levels. In a specific implementation manner, the terminal may divide r priority levels for the third parameter, and pre-configure r parameter thresholds for the r priority levels of the third parameter; or, the terminal may classify the third parameter into r priority classes, and the second base station may configure r parameter thresholds for the r priority classes of the third parameter through higher layer signaling, where the second base station may be a base station of the second transmission link, and the higher layer signaling may be SIB signaling, MIB signaling, or RRC signaling.
As shown in table 5, a correspondence relationship among the third parameter, 4 priority levels corresponding to the third parameter, and 4 parameter thresholds corresponding to the 4 priority levels is shown. Where 1 and 2 correspond to priority levels 1, 3 and 4 correspond to priority levels 2, 5 and 6 correspond to priority levels 3, and 7 and 8 correspond to priority level 4. The threshold corresponding to priority level 1 is R1dB, the threshold corresponding to priority level 2 is R2dB, the threshold corresponding to priority level 3 is R3dB, the threshold corresponding to priority level 4 is R4dB。
TABLE 5
| |
|
|
|
| 1，2 | 3，4 | 5，6 | 7，8 |
| R1dB | R2dB | R3dB | R4dB |
Optionally, the third parameter threshold is a parameter threshold preset by the terminal or a parameter threshold configured by a higher layer signaling, where the higher layer signaling is SIB signaling, MIB signaling, or RRC signaling.
It should be noted that the terminal stopping sending the second information is used to indicate that the terminal stops sending the second information before sending the second information, that is, the terminal does not send the second information.
Illustratively, if the third parameter mapped by the second base station according to the 5G QoS characteristic parameter is 6, the third priority class corresponding to 6 is priority class 3 according to table 5, and the third parameter threshold corresponding to priority class 3 is R3dB, if the third difference is greater than or equal to R3dB, the terminal stops sending the second information, namely the terminal uses a first final power to send first information through a first transmission link, and the terminal does not send the second information; if the third difference is smaller than R3dB, the terminal sends first information through a first transmission link by using the first final power, and sends second information through a second transmission link by using the second final power.
As shown in fig. 10, the subcarrier spacing of the first transmission link is 15KHz, the subcarrier spacing of the second transmission link is 60KHz, the first transmission link is a L TE side link, the second transmission link is an NR side link, and since the 1 st slot of the second transmission link temporally precedes the 1 st subframe of the first transmission link, if the terminal transmits information in the 1 st subframe of the first transmission link and the 1 st slot of the second transmission link, and the sum of the actual power of the first transmission link and the actual power of the second transmission link is greater than a first power threshold, the actual power of the first transmission link is reduced.
As shown in fig. 11, another sidelink power control method provided in this embodiment is applied to a terminal, and the sidelink power control method includes the following steps:
Alternatively, the first priority class of the terminal may be a class of PPPP, and the terminal may indicate the first priority class through the SCI. For example, the terminal may indicate the first priority level as one of PPPP1-PPPP8 through SCI. Step 1102, obtaining a first parameter, wherein the first parameter is determined according to the QoS.
The first parameter may be a value synthetically mapped by the second base station according to the 5G QoS characteristic parameter, and the second base station may transmit the first parameter synthetically mapped according to the 5G QoS characteristic parameter to the terminal, where the 5G QoS characteristic parameter includes at least one of the following parameters: resource type, priority level, PDB, PER, averageingwindow, MDBV, and minimum required communication range. The terminal prestores the corresponding relation between the first parameter and r priority levels corresponding to the first parameter.
As shown in table 6, the first parameter and the correspondence relationship between the first parameter and the 8 priority levels corresponding to the first parameter are shown. Where 1 and 2 correspond to priority levels 1, 3 and 4 correspond to priority levels 2, 5 and 6 correspond to priority levels 3, 7 and 8 correspond to priority levels 4, 9 and 10 correspond to priority levels 5, 11 and 12 correspond to priority levels 6, 13 and 14 correspond to priority levels 7, 15 and 16 correspond to priority level 8.
TABLE 6
In one possible implementation, determining a first reserved power and a second reserved power according to the first priority class and the second priority class includes: determining the proportion m of first reserved power in a first power threshold and the proportion n of second reserved power in the first power threshold according to the first priority level and the second priority level, wherein m + n is less than or equal to 1, m is more than 0 and less than 1, and n is more than 0 and less than 1; and determining a first reserved power and a second reserved power according to the first power threshold, m and n.
It should be noted that the first power threshold may be according to PPowerClass、PEMAXAnd PFDMDetermining, for example, that the first power threshold may be PPowerClass、PEMAXAnd PFDMIs minimum value of, wherein, PPowerClassFor representing a maximum power, P, of the terminal defined according to the type of the terminalEMAXMaximum power allowed by the terminal, P, for representing RRC signaling configurationFDMThe terminal is used for representing the maximum power of the terminal defined when the terminal transmits information in a frequency division multiplexing mode.
Alternatively, if the priority levels of the first and second priority levels are the same, m may be 0.5 and n may be 0.5. For example: if the first priority level is PPPP3 and the second priority level is priority level 3, then m is 0.5 and n is 0.5.
Optionally, if the priority levels of the first priority level and the second priority level are different, m and n may be determined according to a level difference between the first priority level and the second priority level. For example: if the first priority level is PPPP4 and the second priority level is priority level 6, then m is 0.6 and n is 0.4.
Optionally, if the priority level of the first priority level and the second priority level is greater than the priority level threshold, the sum of m and n may be less than 1. For example: if the first priority level is PPPP7, the second priority level is priority level 8, and both the first priority level and the second priority level are greater than the priority level threshold of 5, then m is 0.2 and n is 0.1.
Further, the determining, according to the first priority class and the second priority class, a ratio m of a first reserved power to a first power threshold and a ratio n of a second reserved power to the first power threshold includes: and determining the proportion m of the first reserved power in the first power threshold value and the proportion n of the second reserved power in the first power threshold value according to the difference between the first priority level and the second priority level.
Optionally, the terminal stores m and n corresponding to a difference between the first priority level and the second priority level in advance, and the terminal may determine m and n according to the difference between the first priority level and the second priority level.
As shown in table 7, the correspondence between the difference between the first priority ranking and the second priority ranking and m, n is shown. The first priority level may be one of PPPP1-PPPP8, and the second priority level may be one of priority level 1 to priority level 8. In table 7, the first priority level and the second priority level correspond to the values of m, n in the table. For example, if the first priority level is PPPP5 and the second priority level is priority level 1, then m is 0.2 and n is 0.8. For another example, if the first priority level is PPPP7 and the second priority level is priority level 6, m is 0.4 and n is 0.6.
TABLE 7
In another possible implementation manner, determining a first reserved power and a second reserved power according to the first priority class and the second priority class includes: determining a ratio m of first reserved power to a first power threshold and a ratio n of second reserved power to the first power threshold according to the first priority level, the second priority level, a first priority level threshold corresponding to the first priority level and a second priority level threshold corresponding to the second priority level, wherein 0< m <1, 0< n <1, and 0< m < 1; a first reserved power and a second reserved power are determined according to the first power threshold, m and n.
It should be noted that the first power threshold may be represented by PPowerClass、PEMAXAnd PFDMMay be P, for examplePowerClass、PEMAXAnd PFDMIs minimum value of, wherein, PPowerClassFor representing a maximum power, P, of the terminal defined according to the type of the terminalEMAXMaximum power allowed by the terminal, P, for representing RRC signaling configurationFDMFor indicating the terminal defined when the terminal transmits information using frequency division multiplexingMaximum power.
It should be noted that the first priority level threshold and the second priority level threshold may be thresholds preset by the terminal or thresholds configured by higher layer signaling, where the higher layer signaling is SIB signaling, MIB signaling, or RRC signaling.
Optionally, the terminal may determine, according to a difference between the first priority level and the first priority level threshold, a ratio m of the first reserved power to the first power threshold, and the terminal may determine, according to a difference between the second priority level and the second priority level threshold, a ratio n of the second reserved power to the first power threshold.
Further, the first priority class may be 1 of PPPP1-PPPP8, the second priority class may be one of priority class 1 to priority class 7, the terminal may determine a ratio m of the first reserved power to the first power threshold according to a difference between the first priority class and a first priority class threshold, and the terminal may determine a ratio n of the second reserved power to the first power threshold according to a difference between the second priority class and a second priority class threshold.
Illustratively, if the first priority level is PPPP2, the second priority level is priority level 2, the first priority level threshold is PPPP4, the second priority level threshold is priority level 3, the first priority level differs from the first priority level threshold by 2 levels, the second priority level differs from the second priority level threshold by 1 level, m may be set to 0.5, and n may be set to 0.3.
Optionally, if the sum of the first actual power and the second actual power is greater than the first power threshold, the terminal may decrease the first actual power, so that the sum of the decreased first actual power and the second actual power is less than or equal to the first power threshold, and the decreased first actual power is greater than or equal to the first reserved power.
Optionally, if the sum of the first actual power and the second actual power is greater than the first power threshold, the terminal may decrease the second actual power, so that the sum of the first actual power and the decreased second actual power is less than or equal to the first power threshold, and the decreased second actual power is greater than or equal to the second reserved power.
It is to be understood that the above-mentioned terminal and the like include hardware structures and/or software modules corresponding to the respective functions for realizing the above-mentioned functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiment of the present application, the terminal may be divided into the functional modules according to the method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.
For example, in the case where the functional modules are divided in an integrated manner, fig. 12 shows a schematic configuration diagram of the terminal 120. The terminal 120 includes: an obtaining module 1201, a calculating module 1202 and a determining module 1203. An obtaining module 1201, configured to obtain a first maximum transmission power and a second maximum transmission power, where the first maximum transmission power is a maximum transmission power for a terminal to send a first message through a first transmission link, and the second maximum transmission power is a maximum transmission power for the terminal to send a second message through a second transmission link; a calculating module 1202, configured to calculate, if the terminal determines to send first information through a first transmission link in a frequency division multiplexing manner, second information through a second transmission link, and according to the first maximum transmission power and the second maximum transmission power, a first actual power and a second actual power, where the first actual power is an actual power for the terminal to send the first information through the first transmission link in the frequency division multiplexing manner, and the second actual power is an actual power for the terminal to send the second information through the second transmission link in the frequency division multiplexing manner; a determining module 1203, configured to determine a first final power and a second final power according to the first actual power and the second actual power if a sum of the first actual power and the second actual power is greater than a first power threshold, where the first final power is a final transmit power for the terminal to send the first information through the first transmission link, and the second final power is a final transmit power for the terminal to send the second information through the second transmission link.
It should be noted that the first transmission link may be a side link of L TE, and the second transmission link may be a side link of NR, or the first transmission link may be a side link of NR, and the second transmission link may be a side link of L TE.
Illustratively, the first maximum transmit power PCMAX1Can be PCMAXL1≤PCMAX1≤PCMAXH1，PCMAXL1＝Min{PEMAX-ΔTC，PPowerClass-Max(MPR+AMPR+ΔTIB+ΔTC+ΔTProSe，PMPR)，PRegulatory}，PCMAXH1＝Min{PEMAX，PPowerClass，PRegulatoryH, the second maximum transmit power PCMAX2The value range of (A) can be PCMAX L1 ≦ PCMAX2≤PCMAXH1，PCMAXL1＝Min{PEMAX-Δ，PPowerClass-Δ，PRegulatory}，PCMAXH1＝Min{PEMAX，PPowerClass，PRegulatoryIn which P isEMAXThe terminal allows for representing radio resource control, RRC, signaling configurationMaximum power of PPowerClassFor representing a maximum power of the terminal defined according to the type of the terminal, MPR for representing a power backoff parameter, AMPR for representing an additional power backoff parameter, PMPR for representing a power backoff in a specific case, PRegulatoryPower parameter, Δ T, for representing a vehicle-to-vehicle communication V2X terminalC、ΔTIB、ΔTProSeAnd Δ is a range adjustment parameter. The terminal may select the value of the first maximum transmit power within a value range of the first maximum transmit power, and the terminal may select the value of the second maximum transmit power within a value range of the second maximum transmit power. It should be noted that, if the first transmission link and the second transmission link are transmitted on the same subband, the first transmission link and the second transmission link need to consider additional AMPR in consideration of interference.
Illustratively, the first maximum transmit power and the second maximum transmit power may also be determined from the first initial power and the second initial power. E.g. the first maximum transmission power PCMAX1Can also be PCMAXL2≤PCMAX1≤PCMAXH2，PCMAXL2＝Min{PEMAX-ΔTC，PPowerClass-Max(MPR+AMPR+ΔTIB+ΔTC+ΔTProSe，PMPR)，P1-ΔTC，PRegulatory}，PCMAXH2＝Min{PEMAX，PPowerClass，PRegulatory，P1H, the second maximum transmit power PCMAX2The value range of (b) can also be PCMAX L2 ≦ PCMAX2≤PCMAXH2，PCMAXL2＝Min{PEMAX-Δ，PPowerClass-Δ，P2-Δ，PRegulatory}，PCMAXH2＝Min{PEMAX，PPowerClass，PRegulatory，P2In which P is1For representing a first initial power, P2For representing the second initial power. P1The base station, which may be an L TE network, configures for and transmits to the terminal, P2The base station, which may be an NR network, configures for and transmits to the terminal. The terminal may be at the first mostThe value of the first maximum transmission power is selected within the value range of the large transmission power, and the value of the second maximum transmission power can be selected by the terminal within the value range of the second maximum transmission power. It should be noted that, if the first transmission link and the second transmission link are transmitted on the same subband, the first transmission link and the second transmission link need to consider additional AMPR in consideration of interference.
For example, the terminal may calculate a first intermediate power according to parameters configured by a higher layer of the first transmission link, a transmission bandwidth, a path loss, and some power adjustment information, and compare the first intermediate power with a first maximum transmission power to obtain a first actual power, for example, a minimum value between the first intermediate power and the first maximum transmission power may be determined as the first actual power; the terminal may calculate a second intermediate power according to parameters configured by a higher layer of the second transmission link, a transmission bandwidth, a path loss, and some power adjustment information, and compare the second intermediate power with a second maximum transmission power to obtain a second actual power, for example, a minimum value of the second intermediate power and the second maximum transmission power may be determined as the second actual power.
Optionally, the determining module 1203 is specifically configured to: reducing the second actual power so that the sum of the first actual power and the reduced second actual power is less than or equal to a first power threshold; determining the first actual power as a first final power; and determining the reduced second actual power as a second final power.
Optionally, as shown in fig. 13, the terminal 120 further includes a stopping module 1204. An obtaining module 1201, configured to obtain a first parameter, where the first parameter is determined according to a quality of service QoS; an obtaining module 1201, further configured to obtain a first priority level corresponding to the first parameter; an obtaining module 1201, configured to obtain a first difference value, where the first difference value is a difference between the second actual power and the second final power; a stopping module 1204, configured to stop, if the first difference is greater than or equal to a first parameter threshold corresponding to the first priority level, the terminal sending the second information.
It should be noted that the first parameter may be various types of parameters, for example, the first parameter may be a level of PPPP, and for example, the first parameter may be a value comprehensively mapped by the second base station according to the 5G QoS characteristic parameter, and for example, the first parameter may also be an index of a 5G QoS Indicator (5G QoS Indicator, 5QI) parameter set.
If the first parameter is the PPPP level, the terminal may indicate the first parameter through the SCI. The terminal prestores corresponding relations among the first parameters, k priority levels corresponding to the first parameters and k parameter thresholds corresponding to the k priority levels. In a specific implementation manner, the terminal may divide k priority levels for the first parameter, and pre-configure k parameter thresholds for the k priority levels of the first parameter; or, the terminal may classify the first parameter into k priority classes, and the second base station may configure k parameter thresholds for the k priority classes of the first parameter through higher layer signaling, where the second base station may be a base station of the second transmission link, and the higher layer signaling may be SIB signaling, MIB signaling, or RRC signaling.
As shown in table 8, a correspondence relationship among the first parameter, 4 priority levels corresponding to the first parameter, and 4 parameter thresholds corresponding to the 4 priority levels is shown. Among them, PPPP1 and PPPP2 correspond to priority level 1, PPPP3 and PPPP4 correspond to priority level 2, PPPP5 and PPPP6 correspond to priority level 3, and PPPP7 and PPPP8 correspond to priority level 4. The threshold value corresponding to priority level 1 is K1dB, the threshold value corresponding to the priority level 2 is K2dB, the threshold value corresponding to priority level 3 is K3dB, the threshold value corresponding to the priority level 4 is K4dB。
TABLE 8
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| PPPP1，PPPP2 | PPPP3，PPPP4 | PPPP5，PPPP6 | PPPP7，PPPP8 |
| K1dB | K2dB | K3dB | K4dB |
If the first parameter is a value synthetically mapped by the second base station according to the 5G QoS characteristic parameter, the second base station may send the first parameter synthetically mapped according to the 5G QoS characteristic parameter to the terminal, where the 5G QoS characteristic parameter includes at least one of the following parameters: resource type, priority level, PDB, PER, averageingwindow, MDBV, and minimum required communication range. The terminal prestores corresponding relations among the first parameters, j priority levels corresponding to the first parameters and j parameter thresholds corresponding to the j priority levels. In a specific implementation manner, the terminal may divide j priority levels for the first parameter, and pre-configure j parameter thresholds for the j priority levels of the first parameter; or, the terminal may classify j priority levels for the first parameter, and the second base station may configure j parameter thresholds for the j priority levels of the first parameter through higher layer signaling, where the second base station may be a base station of the second transmission link, and the higher layer signaling may be SIB signaling, MIB signaling, or RRC signaling.
As shown in table 9, a correspondence relationship among the first parameter, 4 priority levels corresponding to the first parameter, and 4 parameter thresholds corresponding to the 4 priority levels is shown. Where 1 and 2 correspond to priority levels 1, 3 and 4 correspond to priority levels 2, 5 and 6 correspond to priority levels 3, and 7 and 8 correspond to priority level 4. The threshold corresponding to priority level 1 is J1dB, the threshold corresponding to priority level 2 is J2dB, the threshold corresponding to priority level 3 is J3dB, the threshold corresponding to priority level 4 is J4dB。
TABLE 9
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| 1，2 | 3，4 | 5，6 | 7，8 |
| J1dB | J2dB | J3dB | J4dB |
If the first parameter is an index of a 5QI parameter set, the terminal may divide the 5QI parameters into q sets, and assign an index number to each 5QI parameter set, where each 5QI parameter set may include a certain number of 5QI parameters, for example, the 5QI parameter set with the index number of 1 includes {1, 2, 3, 4, 5} and the 5QI parameter set with the index number of 2 includes {65, 66, 67, 68, 69 }. The terminal may indicate the first parameter through the SCI. The terminal prestores corresponding relations among the first parameters, q priority levels corresponding to the first parameters and q parameter thresholds corresponding to the q priority levels. In a specific implementation manner, the terminal may pre-configure q parameter thresholds for q priority levels of the first parameter; or, the second base station may configure q parameter thresholds for the q priority levels of the first parameter through higher layer signaling, where the second base station may be a base station of a second transmission link, and the higher layer signaling may be SIB signaling, MIB signaling, or RRC signaling.
As shown in table 10, a correspondence relationship among the first parameter, 6 priority levels corresponding to the first parameter, and 6 parameter thresholds corresponding to the 6 priority levels is shown. Wherein, the threshold value corresponding to the priority level 1 is Q1dB, the threshold corresponding to priority level 2 is Q2dB, the threshold value corresponding to priority level 3 is Q3dB, the threshold value corresponding to priority level 4 is Q4dB, the threshold corresponding to priority level 5 is Q5dB, the threshold corresponding to priority level 6 is Q6dB。
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| 1 | 2 | 3 | 4 | 5 | 6 |
| Q1dB | Q2dB | Q3dB | Q4dB | Q5dB | Q6dB |
Illustratively, if the first parameter obtained by the terminal is PPPP3, according to table 8, the first priority level corresponding to PPPP3 is priority level 2, and the first parameter threshold corresponding to priority level 2 is K2dB, if the first difference is greater than or equal to K2dB, the terminal stops sending the second information, namely the terminal uses a first final power to send first information through a first transmission link, and the terminal does not send the second information; if the first difference is smaller than K2dB, the terminal sends first information through a first transmission link by using the first final power, and sends second information through a second transmission link by using the second final power.
Illustratively, if the first parameter mapped by the second base station according to the 5G QoS tag parameter is 5, the first priority class corresponding to 5 is priority class 3 according to table 9, and the first parameter threshold corresponding to priority class 3 is J3dB，If the first difference is greater than or equal to J3dB, the terminal stops sending the second information, namely the terminal uses a first final power to send first information through a first transmission link, and the terminal does not send the second information; if the first difference is less than J3dB, the terminal sends first information through a first transmission link by using the first final power, and sends second information through a second transmission link by using the second final power.
For example, if the first parameter obtained by the terminal is 2, according to the table 10, the first priority level corresponding to 2 is priority level 2, and the first parameter threshold corresponding to priority level 2 is Q2dB, if the first difference is greater than or equal to Q2dB, the terminal stops sending the second information, namely the terminal uses a first final power to send first information through a first transmission link, and the terminal does not send the second information; if the first difference is smaller than Q2dB, the terminal sends first information through a first transmission link by using the first final power, and sends second information through a second transmission link by using the second final power.
It should be noted that the first difference may be various types of differences, for example, the first difference may be a difference between the second actual power and the second final power, and for example, the first difference may also be a difference between the PSD of the first transmission link and the PSD of the second transmission link.
Optionally, if the first difference is a difference between the PSD of the first transmission link and the PSD of the second transmission link, before step 806, the method further includes: and acquiring the PSD of the first transmission link and the PSD of the second transmission link.
Optionally, the terminal may obtain the PSD of the first transmission link according to a high-level configuration condition of the first transmission link, link channel state information, power adjustment information, and the like; the terminal can obtain the PSD of the second transmission link according to the high-level configuration condition of the second transmission link, the channel state information of the link, the power adjustment information, and the like.
It should be noted that the terminal stopping sending the second information is used to indicate that the terminal stops sending the second information before sending the second information, that is, the terminal does not send the second information.
Optionally, the determining module 1203 is further specifically configured to reduce the first actual power if the second information sent by the terminal through the second transmission link is earlier than the first information sent by the terminal through the first transmission link in a time domain, so that a sum of the reduced first actual power and the second actual power is less than or equal to a first power threshold; determining the reduced first actual power as a first final power; determining the second actual power as a second final power; or, if the first information sent by the terminal through the first transmission link is prior to the second information sent by the terminal through the second transmission link in the time domain, reducing the second actual power, so that the sum of the first actual power and the reduced second actual power is less than or equal to the first power threshold; determining the first actual power as a first final power; and determining the reduced second actual power as a second final power.
Optionally, the obtaining module 1201 is further configured to obtain a second priority level of the terminal, where the second priority level is a priority level determined according to QoS; an obtaining module 1201, configured to obtain a second difference value, where the second difference value is a difference between the first actual power and the first final power; the stopping module 1204 is further configured to stop sending the first information if the second difference is greater than or equal to a second parameter threshold corresponding to a second priority level; or, the obtaining module 1201 is further configured to obtain a third parameter, where the third parameter is a parameter determined according to the QoS; an obtaining module 1201, further configured to obtain a third priority level corresponding to the third parameter; the obtaining module 1201 is further configured to obtain a third difference, where the third difference is a difference between the second actual power and the second final power. The stopping module 1204 is further configured to stop sending the second information by the terminal if the third difference is greater than or equal to a third parameter threshold corresponding to a third priority level.
Illustratively, the second priority level of the terminal may be a level of PPPP, and the terminal may indicate the second priority level through the SCI. The terminal stores the priority levels of p pieces of first information and the corresponding relation of p parameter thresholds corresponding to the priority levels of the p pieces of first information in advance. In a specific implementation manner, the terminal may configure p parameter thresholds for priority levels of p pieces of first information; or, the first base station may configure p parameter thresholds for the priority levels of the p first information through higher layer signaling, where the first base station may be a base station of the first transmission link, and the higher layer signaling may be SIB signaling, MIB signaling, or RRC signaling.
As shown in table 11, the correspondence relationship between the priority levels of the 8 pieces of first information and the 8 parameter thresholds corresponding to the priority levels of the 8 pieces of first information is shown. Wherein the threshold value corresponding to PPPP1 is P1dB, the threshold value for PPPP2 is P2dB, the threshold value for PPPP3 is P3dB, the threshold value for PPPP4 is P4dB, the threshold value for PPPP5 is P5dB, the threshold value for PPPP6 is P6dB, the threshold value for PPPP7 is P7dB, the threshold value for PPPP8 is P8dB。
TABLE 11
| PPPP1 | PPPP2 | PPPP3 | PPPP4 | PPPP5 | PPPP6 | PPPP7 | PPPP8 |
| P1dB | P2dB | P3dB | P4dB | P5dB | P6dB | P7dB | P8dB |
Illustratively, if the second priority level obtained by the terminal is PPPP1, according to table 11, the second parameter threshold corresponding to PPPP1 is P1dB, if the second difference is greater than or equal to P1dB, the terminal stops sending the first information, that is, the terminal sends second information through a second transmission link using a second final power, and the terminal does not send the first information; if the first difference is less than P1dB, the terminal sends first information through a first transmission link by using the first final power, and sends second information through a second transmission link by using the second final power.
Illustratively, the third parameter may be a value synthetically mapped by the second base station according to a 5G QoS characteristic parameter, and the second base station may transmit the third parameter synthetically mapped according to the 5G QoS characteristic parameter to the terminal, where the 5G QoS characteristic parameter includes at least one of the following parameters: resource type, priority level, PDB, PER, averaging window, MDBV, and minimum required communication range. The terminal prestores the corresponding relation among the third parameter, r priority levels corresponding to the third parameter and r parameter thresholds corresponding to the r priority levels. In a specific implementation manner, the terminal may divide r priority levels for the third parameter, and pre-configure r parameter thresholds for the r priority levels of the third parameter; or, the terminal may classify the third parameter into r priority classes, and the second base station may configure r parameter thresholds for the r priority classes of the third parameter through higher layer signaling, where the second base station may be a base station of the second transmission link, and the higher layer signaling may be SIB signaling, MIB signaling, or RRC signaling.
As shown in table 12, a correspondence relationship among the third parameter, 4 priority levels corresponding to the third parameter, and 4 parameter thresholds corresponding to the 4 priority levels is shown. Where 1 and 2 correspond to priority levels 1, 3 and 4 correspond to priority levels 2, 5 and 6 correspond to priority levels 3, and 7 and 8 correspond to priority level 4. The threshold corresponding to priority level 1 is R1dB, the threshold corresponding to priority level 2 is R2dB, the threshold corresponding to priority level 3 is R3dB, the threshold corresponding to priority level 4 is R4dB。
TABLE 12
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| 1，2 | 3，4 | 5，6 | 7，8 |
| R1dB | R2dB | R3dB | R4dB |
Illustratively, if the third parameter mapped by the second base station according to the 5G QoS tag parameter is 6, the third priority class corresponding to 6 is priority class 3 according to table 12, and the third parameter threshold corresponding to priority class 3 is R3dB, if the third difference is greater than or equal to R3dB, the terminal stops sending the second information, namely the terminal uses a first final power to send first information through a first transmission link, and the terminal does not send the second information; if the third difference is smaller than R3dB, the terminal sends first information through a first transmission link by using the first final power, and sends second information through a second transmission link by using the second final power.
It should be noted that the terminal stopping sending the first information is used to indicate that the terminal stops sending the first information before sending the first information, that is, the terminal does not send the first information.
It should be noted that the terminal stopping sending the second information is used to indicate that the terminal stops sending the second information before sending the second information, that is, the terminal does not send the second information.
Optionally, the first parameter threshold is a parameter threshold preset by the terminal or a parameter threshold configured by a high-level signaling, where the high-level signaling is a system information block SIB signaling, a master information block MIB signaling, or a radio resource control RRC signaling.
Optionally, the first maximum transmission power and the second maximum transmission power are determined according to a first initial power and a second initial power, the first initial power is an initial transmission power for the terminal to send the first information through the first transmission link, and the second initial power is an initial transmission power for the terminal to send the second information through the second transmission link.
Optionally, the first initial power is configured by a first base station, and the first base station is a base station of the first transmission link; the second initial power is configured by a second base station, the second base station being a base station of the second transmission link.
Optionally, the obtaining module 1201 is further configured to obtain a first initial power and a second initial power, where the first initial power is an initial transmission power for the terminal to send the first information through the first transmission link, and the second initial power is an initial transmission power for the terminal to send the second information through the second transmission link; the determining module 1203 is further configured to determine, if a sum of the first initial power and the second initial power is greater than a second power threshold, that the terminal sends the first information through the first transmission link and sends the second information through the second transmission link in a time division multiplexing or code division multiplexing manner, where the second power threshold is represented by PPowerClassAnd/or PEMAXIs determined wherein PPowerClassFor representing a maximum power, P, of the terminal defined according to the type of the terminalEMAXMaximum power allowed by the terminal for representing RRC signaling configuration.
It should be noted that, the first base station, the second base station, or the terminal may configure the multiplexing mode used by the terminal, for example: time division multiplexing mode, code division multiplexing mode, or frequency division multiplexing mode. The first base station is a base station of a first transmission link and the second base station is a base station of a second transmission link.
Illustratively, the second power threshold may be PPowerClassAnd PEMAXMinimum value of (1).
Optionally, the first power threshold is set by PPowerClass、PEMAXAnd PFDMIs determined by at least one of (1), wherein PPowerClassFor representing a maximum power, P, of the terminal defined according to the type of the terminalEMAXMaximum power allowed by the terminal, P, for representing RRC signaling configurationFDMThe terminal is used for representing the maximum power of the terminal defined when the terminal transmits information in a frequency division multiplexing mode.
Illustratively, the first power threshold may be PPowerClass、PEMAXAnd PFDMMinimum value of (1).
Optionally, the first maximum transmission power is less than or equal to a first initial power, the second maximum transmission power is less than or equal to a second initial power, the first initial power is an initial transmission power for the terminal to send the first information through the first transmission link, and the second initial power is an initial transmission power for the terminal to send the second information through the second transmission link.
All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.
In the present embodiment, the terminal 120 is presented in a form of dividing each functional module in an integrated manner. A "module" herein may refer to a particular ASIC, a circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other device that provides the described functionality. In a simple embodiment, those skilled in the art will appreciate that the terminal 120 may take the form shown in FIG. 6.
For example, the processor 601 in fig. 6 may cause the terminal 120 to execute the side link power control method in the above-described method embodiment by calling a computer stored in the memory 603 to execute the instructions.
Illustratively, the functions/implementation procedures of the obtaining module 1201, the calculating module 1202, and the determining module 1203 in fig. 12 may be implemented by the processor 601 in fig. 6 calling a computer executing instructions stored in the memory 603.
Since the terminal 120 provided in this embodiment can execute the above-mentioned sidelink power control method, the technical effects obtained by the terminal 120 can refer to the above-mentioned method embodiment, and are not described herein again.
Optionally, an apparatus (for example, the apparatus may be a chip system) provided in this embodiment of the present application, where the apparatus includes a processor, configured to support the terminal to implement the sidelink power control method, for example, obtain a first maximum transmit power and a second maximum transmit power; if the terminal determines to send first information through a first transmission link in a frequency division multiplexing mode, sending second information through a second transmission link, and calculating first actual power and second actual power according to the first maximum transmitting power and the second maximum transmitting power; and if the sum of the first actual power and the second actual power is larger than a first power threshold, determining a first final power and a second final power according to the first actual power and the second actual power. In one possible design, the apparatus further includes a memory. The memory is used for storing program instructions and data necessary for the terminal. Of course, the memory may not be in the device. When the device is a chip system, the device may be composed of a chip, and may also include a chip and other discrete devices, which is not specifically limited in this application embodiment.
Alternatively, for example, in the case where the functional modules are divided in an integrated manner, fig. 14 shows a schematic configuration of the terminal 140. The terminal 140 includes: an acquisition module 1401 and a determination module 1402. An obtaining module 1401, configured to, if the terminal determines to send the first information through the first transmission link in a frequency division multiplexing manner, send the second information through the second transmission link, and obtain a first priority level of the terminal, where the first priority level is a priority level determined according to QoS; an obtaining module 1401, further configured to obtain a first parameter, where the first parameter is a parameter determined according to QoS; an obtaining module 1401, further configured to obtain a second priority level corresponding to the first parameter; a determining module 1402, configured to determine a first reserved power and a second reserved power according to the first priority level and the second priority level, where the first reserved power is a lowest transmission power for the terminal to send the first information through the first transmission link, and the second reserved power is a lowest transmission power for the terminal to send the second information through the second transmission link.
It should be noted that the first priority level of the terminal may be a PPPP level, and the terminal may indicate the first priority level through the SCI. For example, the terminal may indicate the first priority level as one of PPPP1-PPPP8 through SCI.
Illustratively, the first parameter may be a value synthetically mapped by the second base station according to a 5G QoS characteristic parameter, and the second base station may transmit the first parameter synthetically mapped according to the 5G QoS characteristic parameter to the terminal, where the 5G QoS characteristic parameter includes at least one of the following parameters: resource type, priority level, PDB, PER, averaging window, MDBV, and minimum required communication range. The terminal prestores the corresponding relation between the first parameter and r priority levels corresponding to the first parameter.
As shown in table 13, the first parameter and the correspondence relationship between the first parameter and the 8 priority levels corresponding to the first parameter are shown. Where 1 and 2 correspond to priority levels 1, 3 and 4 correspond to priority levels 2, 5 and 6 correspond to priority levels 3, 7 and 8 correspond to priority levels 4, 9 and 10 correspond to priority levels 5, 11 and 12 correspond to priority levels 6, 13 and 14 correspond to priority levels 7, 15 and 16 correspond to priority level 8.
Optionally, the determining module 1402 is specifically configured to: determining the proportion m of first reserved power in a first power threshold and the proportion n of second reserved power in the first power threshold according to the first priority level and the second priority level, wherein m + n is less than or equal to 1, m is more than 0 and less than 1, and n is more than 0 and less than 1; and determining a first reserved power and a second reserved power according to the first power threshold, m and n.
Illustratively, if the priority levels of the first and second priority levels are the same, m may be 0.5 and n may be 0.5. For example: if the first priority level is PPPP3 and the second priority level is priority level 3, then m is 0.5 and n is 0.5.
For example, if the priority levels of the first priority level and the second priority level are different, m and n may be determined according to a level difference between the first priority level and the second priority level. For example: if the first priority level is PPPP4 and the second priority level is priority level 6, then m is 0.6 and n is 0.4.
Illustratively, if the priority level of the first priority level and the second priority level is greater than the priority level threshold, the sum of m and n may be less than 100. For example: if the first priority level is PPPP7, the second priority level is priority level 8, and both the first priority level and the second priority level are greater than the priority level threshold of 5, then m is 0.2 and n is 0.1.
Optionally, the determining, according to the first priority class and the second priority class, a ratio m of a first reserved power to a first power threshold and a ratio n of a second reserved power to the first power threshold includes: and determining the proportion m of the first reserved power in the first power threshold value and the proportion n of the second reserved power in the first power threshold value according to the difference between the first priority level and the second priority level.
For example, the terminal may pre-store m and n corresponding to a difference between the first priority level and the second priority level, and the terminal may determine m and n according to the difference between the first priority level and the second priority level.
As shown in table 14, the correspondence relationship between the difference between the first priority ranking and the second priority ranking and m, n is shown. The first priority level may be one of PPPP1-PPPP8, and the second priority level may be one of priority level 1 to priority level 8. In table 14, the first priority level and the second priority level correspond to the value of m, n in the table. For example, if the first priority level is PPPP5 and the second priority level is priority level 1, then m is 0.2 and n is 0.8. For another example, if the first priority level is PPPP7 and the second priority level is priority level 6, m is 0.4 and n is 0.6.
TABLE 14
Optionally, the determining module 1402 is further specifically configured to: determining the proportion m of first reserved power in a first power threshold and the proportion n of second reserved power in the first power threshold according to the first priority level, the second priority level, a first priority level threshold corresponding to the first priority level and a second priority level threshold corresponding to the second priority level, wherein m + n is less than or equal to 1, 0< m <1, and 0< n < 1; a first reserved power and a second reserved power are determined according to the first power threshold, m and n.
It should be noted that the first priority level threshold and the second priority level threshold may be thresholds preset by the terminal or thresholds configured by higher layer signaling, where the higher layer signaling is SIB signaling, MIB signaling, or RRC signaling.
For example, the terminal may determine the ratio m of the first reserved power to the first power threshold according to the difference between the first priority level and the first priority level threshold, and the terminal may determine the ratio n of the second reserved power to the first power threshold according to the difference between the second priority level and the second priority level threshold.
Further, the first priority class may be 1 of PPPP1-PPPP8, the second priority class may be one of priority class 1 to priority class 7, the terminal may determine a ratio m of the first reserved power to the first power threshold according to a difference between the first priority class and a first priority class threshold, and the terminal may determine a ratio n of the second reserved power to the first power threshold according to a difference between the second priority class and a second priority class threshold.
Illustratively, if the first priority level is PPPP2, the second priority level is priority level 2, the first priority level threshold is PPPP4, the second priority level threshold is priority level 3, the first priority level differs from the first priority level threshold by 2 levels, the second priority level differs from the second priority level threshold by 1 level, m may be set to 0.5, and n may be set to 0.3.
Optionally, the first power threshold is set by PPowerClass、PEMAXAnd PFDMToAt least one is determined, wherein PPowerClassFor representing a maximum power, P, of the terminal defined according to the type of the terminalEMAXMaximum power allowed by the terminal, P, for representing RRC signaling configurationFDMThe terminal is used for representing the maximum power of the terminal defined when the terminal transmits information in a frequency division multiplexing mode.
Illustratively, the first power threshold may be PPowerClass、PEMAXAnd PFDMMinimum value of (1).
Optionally, if the sum of the first actual power and the second actual power is greater than the first power threshold, the terminal may decrease the first actual power, so that the sum of the decreased first actual power and the second actual power is less than or equal to the first power threshold, and the decreased first actual power is greater than or equal to the first reserved power.
Optionally, if the sum of the first actual power and the second actual power is greater than the first power threshold, the terminal may decrease the second actual power, so that the sum of the first actual power and the decreased second actual power is less than or equal to the first power threshold, and the decreased second actual power is greater than or equal to the second reserved power.
All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.
In the present embodiment, the terminal 140 is presented in a form of dividing each functional module in an integrated manner. A "module" herein may refer to a particular ASIC, a circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other device that provides the described functionality. In a simple embodiment, those skilled in the art will appreciate that the terminal 140 may take the form shown in FIG. 6.
For example, the processor 601 in fig. 6 may cause the terminal 140 to execute the side link power control method in the above-described method embodiment by calling a computer stored in the memory 603 to execute the instructions.
Illustratively, the functionality/implementation of the obtaining module 1401 and determining module 1402 of fig. 14 may be implemented by the processor 601 of fig. 6 invoking computer-executable instructions stored in the memory 603.
Since the terminal 140 provided in this embodiment can execute the above-mentioned sidelink power control method, the technical effects obtained by the terminal 140 can refer to the above-mentioned method embodiment, and are not described herein again.
Optionally, an apparatus (for example, the apparatus may be a chip system) is further provided in an embodiment of the present application, where the apparatus includes a processor, configured to support the terminal 140 to implement the above-mentioned side link power control method, for example, if the terminal determines to send the first information through the first transmission link in a frequency division multiplexing manner, and send the second information through the second transmission link, to obtain a first priority level of the terminal; acquiring a first parameter; acquiring a second priority level corresponding to the first parameter; and determining a first reserved power and a second reserved power according to the first priority level and the second priority level. In one possible design, the apparatus further includes a memory. The memory is used for storing program instructions and data necessary for the terminal 140. Of course, the memory may not be in the device. When the device is a chip system, the device may be composed of a chip, and may also include a chip and other discrete devices, which is not specifically limited in this application embodiment.
The computer instructions may be stored in, or transmitted from, a computer-readable storage medium to another computer-readable storage medium, e.g., a website, computer, server, or data center via a wired (e.g., coaxial cable, fiber optic, digital subscriber line (DS L)) or wireless (e.g., infrared, wireless, microwave, etc.) manner, and may be transmitted to another website, computer, server, or data center via a wired (e.g., digital subscriber line, DS L)) or wireless (e.g., infrared, wireless, microwave, etc.) manner, and may be embodied in, or transmitted from, a solid-state storage medium (e.g., a hard disk storage medium, a floppy disk storage medium, a solid-state storage medium (e.g., a floppy disk storage medium, a solid-state storage medium, or a magnetic disk storage medium, such as a magnetic disk storage medium, a floppy disk storage medium, or a magnetic disk storage medium, such as a magnetic disk storage medium, or a magnetic disk storage medium.
While the present application has been described in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a review of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.
Although the present application has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations can be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and figures are merely exemplary of the present application as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (30)
1. A method for sidelink power control, the method comprising:
acquiring a first maximum transmission power and a second maximum transmission power, wherein the first maximum transmission power is the maximum transmission power of a terminal for sending first information through a first transmission link, and the second maximum transmission power is the maximum transmission power of the terminal for sending second information through a second transmission link;
if the terminal determines to send first information through a first transmission link in a frequency division multiplexing mode, send second information through a second transmission link, and calculate first actual power and second actual power according to the first maximum transmission power and the second maximum transmission power, wherein the first actual power is the actual power of the terminal for sending the first information through the first transmission link in the frequency division multiplexing mode, and the second actual power is the actual power of the terminal for sending the second information through the second transmission link in the frequency division multiplexing mode;
and if the sum of the first actual power and the second actual power is greater than a first power threshold, determining a first final power and a second final power according to the first actual power and the second actual power, wherein the first final power is the final transmitting power of the terminal for transmitting the first information through the first transmission link, and the second final power is the final transmitting power of the terminal for transmitting the second information through the second transmission link.
2. The method for sidelink power control according to claim 1, wherein said determining a first final power and a second final power according to said first actual power and said second actual power comprises:
reducing the second actual power so that the sum of the first actual power and the reduced second actual power is less than or equal to a first power threshold;
determining the first actual power as a first final power;
and determining the reduced second actual power as a second final power.
3. The method of claim 2, further comprising:
acquiring a first parameter, wherein the first parameter is determined according to quality of service (QoS);
acquiring a first priority level corresponding to the first parameter;
obtaining a first difference value, wherein the first difference value is a difference between the second actual power and the second final power;
and if the first difference is greater than or equal to a first parameter threshold corresponding to a first priority level, the terminal stops sending the second information.
4. The sidelink power control method as claimed in claim 3, wherein the first parameter threshold is a parameter threshold preset by the terminal or configured by a higher layer signaling, and the higher layer signaling is System Information Block (SIB) signaling, Master Information Block (MIB) signaling or Radio Resource Control (RRC) signaling.
5. The sidelink power control method as claimed in any of claims 1-4, wherein said first maximum transmit power and said second maximum transmit power are determined according to a first initial power and a second initial power, said first initial power being an initial transmit power at which said terminal transmits first information via said first transmission link, and said second initial power being an initial transmit power at which said terminal transmits second information via said second transmission link.
6. The sidelink power control method of claim 5, wherein the first initial power is configured by a first base station, the first base station being a base station of the first transmission link; the second initial power is configured by a second base station, the second base station being a base station of the second transmission link.
7. The sidelink power control method of claim 1, wherein prior to said obtaining the first maximum transmit power and the second maximum transmit power, the method further comprises:
acquiring first initial power and second initial power, wherein the first initial power is initial transmitting power for the terminal to transmit first information through the first transmission link, and the second initial power is initial transmitting power for the terminal to transmit second information through the second transmission link;
if the sum of the first initial power and the second initial power is larger than a second power threshold, the terminal determines to use a time division multiplexing or code division multiplexing mode to send first information through a first transmission link and send second information through a second transmission link, wherein the second power threshold is PPowerClassAnd/or PEMAXIs determined wherein PPowerClassFor representing a maximum power, P, of the terminal defined according to the type of the terminalEMAXMaximum power allowed by the terminal for representing RRC signaling configuration.
8. The sidelink power control method as claimed in any one of claims 1 to 7, wherein the first power threshold is defined by PPowerClass、PEMAXAnd PFDMIs determined by at least one of (1), wherein PPowerClassFor representing a maximum power, P, of the terminal defined according to the type of the terminalEMAXMaximum power allowed by the terminal, P, for representing RRC signaling configurationFDMThe terminal is used for representing the maximum power of the terminal defined when the terminal transmits information in a frequency division multiplexing mode.
9. The sidelink power control method as claimed in any of claims 1-7, wherein the first maximum transmission power is equal to or less than a first initial power, the second maximum transmission power is equal to or less than a second initial power, the first initial power is an initial transmission power for the terminal to transmit the first information via the first transmission link, and the second initial power is an initial transmission power for the terminal to transmit the second information via the second transmission link.
10. A method for sidelink power control, the method comprising:
if the terminal determines to send first information through a first transmission link in a frequency division multiplexing mode, sending second information through a second transmission link, and acquiring a first priority level of the terminal, wherein the first priority level is a priority level determined according to QoS (quality of service);
acquiring a first parameter, wherein the first parameter is determined according to QoS;
acquiring a second priority level corresponding to the first parameter;
and determining a first reserved power and a second reserved power according to the first priority level and the second priority level, wherein the first reserved power is the lowest transmission power of the terminal for sending the first information through the first transmission link, and the second reserved power is the lowest transmission power of the terminal for sending the second information through the second transmission link.
11. The sidelink power control method of claim 10, wherein said determining a first reserved power and a second reserved power according to the first priority class and the second priority class comprises:
determining the proportion m of first reserved power in a first power threshold and the proportion n of second reserved power in the first power threshold according to the first priority level and the second priority level, wherein m + n is less than or equal to 1, m is more than 0 and less than 1, and n is more than 0 and less than 1;
and determining a first reserved power and a second reserved power according to the first power threshold, m and n.
12. The method for controlling sidelink power as claimed in claim 11, wherein said determining a ratio m of a first reserved power to a first power threshold and a ratio n of a second reserved power to the first power threshold according to the first priority class and the second priority class comprises:
and determining the proportion m of the first reserved power in the first power threshold value and the proportion n of the second reserved power in the first power threshold value according to the difference between the first priority level and the second priority level.
13. The sidelink power control method of claim 10, wherein said determining a first reserved power and a second reserved power according to the first priority class and the second priority class further comprises:
determining the proportion m of first reserved power in a first power threshold and the proportion n of second reserved power in the first power threshold according to the first priority level, the second priority level, a first priority level threshold corresponding to the first priority level and a second priority level threshold corresponding to the second priority level, wherein m + n is less than or equal to 1, 0< m <1, and 0< n < 1;
a first reserved power and a second reserved power are determined according to the first power threshold, m and n.
14. The sidelink power control method as claimed in any one of claims 11-13, wherein the first power threshold is defined by PPowerClass、PEMAXAnd PFDMIs determined by at least one of (1), wherein PPowerClassFor representing a maximum power, P, of the terminal defined according to the type of the terminalEMAXMaximum power allowed by the terminal, P, for representing RRC signaling configurationFDMThe terminal is used for representing the maximum power of the terminal defined when the terminal transmits information in a frequency division multiplexing mode.
15. A terminal, characterized in that the terminal comprises: the device comprises an acquisition module, a calculation module and a determination module;
the acquiring module is configured to acquire a first maximum transmission power and a second maximum transmission power, where the first maximum transmission power is a maximum transmission power for a terminal to send first information through a first transmission link, and the second maximum transmission power is a maximum transmission power for the terminal to send second information through a second transmission link;
the calculating module is configured to calculate a first actual power and a second actual power according to the first maximum transmission power and the second maximum transmission power if the terminal determines to send the first information through the first transmission link in a frequency division multiplexing manner, where the first actual power is an actual power for the terminal to send the first information through the first transmission link in the frequency division multiplexing manner, and the second actual power is an actual power for the terminal to send the second information through the second transmission link in the frequency division multiplexing manner;
the determining module is configured to determine a first final power and a second final power according to the first actual power and the second actual power if a sum of the first actual power and the second actual power is greater than a first power threshold, where the first final power is a final transmit power at which the terminal sends the first information through the first transmission link, and the second final power is a final transmit power at which the terminal sends the second information through the second transmission link.
16. The terminal of claim 15, wherein the determining module is specifically configured to:
reducing the second actual power so that the sum of the first actual power and the reduced second actual power is less than or equal to a first power threshold;
determining the first actual power as a first final power;
and determining the reduced second actual power as a second final power.
17. The terminal of claim 16,
the obtaining module is further configured to obtain a first parameter, where the first parameter is a parameter determined according to QoS;
the obtaining module is further configured to obtain a first priority level corresponding to the first parameter;
the obtaining module is further configured to obtain a first difference value, where the first difference value is a difference between the second actual power and the second final power;
the terminal further comprises: a stop module;
the stop module is configured to stop sending the second information by the terminal if the first difference is greater than or equal to a first parameter threshold corresponding to a first priority level.
18. The terminal of claim 17, wherein the first parameter threshold is a parameter threshold preset by the terminal or configured by higher layer signaling, and wherein the higher layer signaling is System Information Block (SIB) signaling, Master Information Block (MIB) signaling, or Radio Resource Control (RRC) signaling.
19. The terminal according to any of claims 15-18, wherein the first maximum transmit power and the second maximum transmit power are determined based on a first initial power and a second initial power, the first initial power being an initial transmit power at which the terminal transmits first information over the first transmission link, and the second initial power being an initial transmit power at which the terminal transmits second information over the second transmission link.
20. The terminal of claim 19, wherein the first initial power is configured for a first base station, wherein the first base station is a base station of the first transmission link; the second initial power is configured by a second base station, the second base station being a base station of the second transmission link.
21. The terminal of claim 15,
the obtaining module is further configured to obtain a first initial power and a second initial power, where the first initial power is an initial transmit power for the terminal to send the first information through the first transmission link, and the second initial power is an initial transmit power for the terminal to send the second information through the second transmission link;
the determining module is further configured to determine, if a sum of the first initial power and the second initial power is greater than a second power threshold, that the terminal sends the first information through the first transmission link and sends the second information through the second transmission link in a time division multiplexing or code division multiplexing manner, where the second power threshold is represented by PPowerClassAnd/or PEMAXIs determined wherein PPowerClassFor representing a maximum power, P, of the terminal defined according to the type of the terminalEMAXMaximum power allowed by the terminal for representing RRC signaling configuration.
22. The terminal of any of claims 15-21, wherein the first power threshold is set by PmaxPowerClass、PEMAXAnd PFDMIs determined by at least one of (1), wherein PPowerClassFor representing a maximum power, P, of the terminal defined according to the type of the terminalEMAXMaximum power allowed by the terminal, P, for representing RRC signaling configurationFDMThe terminal is used for representing the maximum power of the terminal defined when the terminal transmits information in a frequency division multiplexing mode.
23. The terminal according to any of claims 15-21, wherein said first maximum transmission power is equal to or less than a first initial power, and said second maximum transmission power is equal to or less than a second initial power, said first initial power being an initial transmission power at which said terminal transmits first information over said first transmission link, and said second initial power being an initial transmission power at which said terminal transmits second information over said second transmission link.
24. A terminal, characterized in that the terminal comprises: the device comprises an acquisition module and a determination module;
the acquiring module is configured to acquire a first priority level of the terminal if the terminal determines to send first information through a first transmission link in a frequency division multiplexing manner and send second information through a second transmission link, where the first priority level is a priority level determined according to QoS;
the acquiring module is further configured to acquire a first parameter, where the first parameter is a parameter determined according to QoS;
the obtaining module is further configured to obtain a second priority level corresponding to the first parameter;
the determining module is configured to determine a first reserved power and a second reserved power according to the first priority level and the second priority level, where the first reserved power is a lowest transmission power for the terminal to send the first information through the first transmission link, and the second reserved power is a lowest transmission power for the terminal to send the second information through the second transmission link.
25. The terminal of claim 24, wherein the determining module is specifically configured to:
determining the proportion m of first reserved power in a first power threshold and the proportion n of second reserved power in the first power threshold according to the first priority level and the second priority level, wherein m + n is less than or equal to 1, m is more than 0 and less than 1, and n is more than 0 and less than 1;
and determining a first reserved power and a second reserved power according to the first power threshold, m and n.
26. The terminal of claim 25, wherein the determining a ratio m of a first reserved power to a first power threshold and a ratio n of a second reserved power to the first power threshold according to the first priority class and the second priority class comprises:
and determining the proportion m of the first reserved power in the first power threshold value and the proportion n of the second reserved power in the first power threshold value according to the difference between the first priority level and the second priority level.
27. The terminal of claim 24, wherein the determining module is further specifically configured to:
determining the proportion m of first reserved power in a first power threshold and the proportion n of second reserved power in the first power threshold according to the first priority level, the second priority level, a first priority level threshold corresponding to the first priority level and a second priority level threshold corresponding to the second priority level, wherein m + n is less than or equal to 1, 0< m <1, and 0< n < 1;
a first reserved power and a second reserved power are determined according to the first power threshold, m and n.
28. The terminal of any of claims 25-27, wherein the first power threshold is set by PPowerClass、PEMAXAnd PFDMIs determined by at least one of (1), wherein PPowerClassFor representing a maximum power, P, of the terminal defined according to the type of the terminalEMAXMaximum power allowed by the terminal, P, for representing RRC signaling configurationFDMThe terminal is used for representing the maximum power of the terminal defined when the terminal transmits information in a frequency division multiplexing mode.
29. A terminal, comprising: at least one processor, at least one memory, and a communication interface,
the communication interface, the at least one memory, and the at least one processor are coupled; the terminal communicates with other devices through the communication interface, the at least one memory is for storing a computer program such that the computer program, when executed by the at least one processor, implements the sidelink power control method as set forth in any one of claims 1-9, or the sidelink power control method as set forth in any one of claims 10-14.
30. A computer-readable storage medium, comprising a computer program which, when run on at least one storage node, executes the side link power control method of any one of claims 1-9 or the side link power control method of any one of claims 10-14.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910028353.5A CN111436110A (en) | 2019-01-11 | 2019-01-11 | Side link power control method and terminal |
| PCT/CN2020/070720 WO2020143632A1 (en) | 2019-01-11 | 2020-01-07 | Sidelink power control method and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910028353.5A CN111436110A (en) | 2019-01-11 | 2019-01-11 | Side link power control method and terminal |
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| CN111436110A true CN111436110A (en) | 2020-07-21 |
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| CN201910028353.5A Pending CN111436110A (en) | 2019-01-11 | 2019-01-11 | Side link power control method and terminal |
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| Country | Link |
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| CN (1) | CN111436110A (en) |
| WO (1) | WO2020143632A1 (en) |
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| CN113068147A (en) * | 2021-04-02 | 2021-07-02 | 上海中兴易联通讯股份有限公司 | Method and system for supporting resource multiplexing in sidelink communication |
| CN114503693A (en) * | 2021-12-31 | 2022-05-13 | 北京小米移动软件有限公司 | Power configuration method and device of terminal, communication equipment and storage medium |
| WO2024032488A1 (en) * | 2022-08-10 | 2024-02-15 | 维沃移动通信有限公司 | Transmission power determination method, and terminal and storage medium |
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| US20230388936A1 (en) * | 2022-05-24 | 2023-11-30 | Qualcomm Incorporated | Power control for concurrent transmission scenarios in multi-band operation |
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| WO2020143632A1 (en) | 2020-07-16 |
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Application publication date: 20200721 |