WO2019095977A1 - Procédé et dispositif de communication - Google Patents

Procédé et dispositif de communication Download PDF

Info

Publication number
WO2019095977A1
WO2019095977A1 PCT/CN2018/112297 CN2018112297W WO2019095977A1 WO 2019095977 A1 WO2019095977 A1 WO 2019095977A1 CN 2018112297 W CN2018112297 W CN 2018112297W WO 2019095977 A1 WO2019095977 A1 WO 2019095977A1
Authority
WO
WIPO (PCT)
Prior art keywords
carriers
transmit power
carrier
service priority
service
Prior art date
Application number
PCT/CN2018/112297
Other languages
English (en)
Chinese (zh)
Inventor
曾勇波
王达
才宇
王键
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2019095977A1 publication Critical patent/WO2019095977A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—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
    • 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
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading

Definitions

  • the embodiments of the present application relate to the field of communications technologies, and in particular, to a communication method and apparatus.
  • V2V vehicle-to-vehicle
  • V2P vehicle-to-traffic
  • V2I vehicle-to-infrastructure
  • Communication in V2X can be implemented either based on the Sidelink interface or on the Uu interface.
  • carrier aggregation of up to 8 PC5 carriers can be supported, that is, user equipment (UE) can transmit signals on multiple carriers, where PC5 refers to a protocol.
  • UE user equipment
  • the total transmit power may exceed the maximum transmit power. Therefore, in order to meet the limitation of the maximum transmit power, how to adjust the transmit power of the service signal on the carrier is Need to solve the problem.
  • the embodiment of the present application provides a communication method and apparatus, which are used to adjust transmit power on each carrier according to service priority, so that the adjusted transmit power meets the requirements of each service priority.
  • the embodiment of the present application provides a communication method, including: acquiring a first transmit power of each carrier of N carriers; N is an integer greater than or equal to 1; and a first transmit power of the N carriers When the sum is greater than the maximum transmit power, the first transmit power of the M carriers of the N carriers is adjusted according to the service priority corresponding to the signal transmitted by each of the N carriers, to reduce the N carriers.
  • a method for adjusting a first transmit power of the M carriers of the N carriers is: Setting a service priority and a service priority corresponding to a signal transmitted by each of the N carriers, and determining, from the N carriers, a carrier whose service priority is lower than the preset service priority And determining, by the M carriers, a first transmit power of the M carriers according to a service priority corresponding to a signal transmitted by each of the M carriers.
  • one mode of adjusting the first transmit power of the M carriers is: determining each of the services according to a service priority corresponding to a signal transmitted by each of the M carriers a scaling factor of the carrier; adjusting a first transmit power of each carrier according to a scaling factor of each carrier.
  • the method for adjusting the first transmit power of each carrier according to the scaling factor of each carrier is: adjusting a first transmit power of each carrier to And a product of a first transmit power of each of the carriers and a scaling factor of each of the carriers; wherein the scaling factor is a positive number or zero.
  • the adjusting the first transmit power of each carrier according to the scaling factor of each carrier is: transmitting according to each of the M carriers Determining a second transmission power of each carrier according to a service priority corresponding to the signal; adjusting a first transmission of each carrier according to a scaling factor of each carrier and a second transmission power of each carrier power.
  • the adjusting the first transmit power of each carrier according to the scaling factor of each carrier and the second transmit power of each carrier is:
  • the first transmit power of each carrier is adjusted to be equal to a product of a second transmit power of each carrier and a scaling factor of each carrier; wherein the scaling factor is a positive number or zero.
  • the acquiring the N transmit powers before adjusting the first transmit power of each carrier according to the scaling factor of each carrier and the second transmit power of each carrier The difference between the sum of the first transmit power of the carrier and the maximum transmit power.
  • the adjusting the first transmit power of each carrier according to the scaling factor of each carrier and the second transmit power of each carrier is: transmitting the first transmission of each carrier The power is adjusted to be equal to a difference between the second transmit power of each carrier and a first value, where the first value is a product of the difference and a first coefficient of each carrier, where each carrier The first coefficient is related to a scaling factor of each of the carriers.
  • the method for adjusting the first transmit power of each carrier according to the scaling factor of each carrier is: reducing a first transmit power of each carrier by a first value, the first value And for a product of the difference and the first coefficient of each carrier, the first coefficient of each carrier is related to a scaling factor of each carrier.
  • sf(Pj) is a scaling factor corresponding to the service priority Pj of the signal transmitted by each of the M carriers
  • sf'(Pj) is the service priority
  • the reciprocal of the scaling factor corresponding to the level Pj, sum(sf'(Pj)) is the sum of sf'(Pj) of the M carriers.
  • the method for determining a scaling factor of each carrier according to a service priority corresponding to a signal transmitted by each of the M carriers is: according to the M A service priority corresponding to a signal transmitted by each carrier in the carrier, and a correspondence between a service priority and a scaling factor, and determining a scaling factor of each carrier.
  • the first M scaling factors are obtained from the K scaling factors according to the order of the largest; and the M scaling is performed according to the order of the scaling factors from large to small and the order of the business priorities from high to low.
  • the factors are determined one by one as the scaling factor of the M carriers.
  • the M scaling factors corresponding to the first M service priorities are obtained from the K service priorities; and the M is performed according to the order of the service priorities from high to low.
  • the scaling factors are determined one-to-one correspondingly to the scaling factors of the M carriers.
  • K is an integer greater than or equal to M.
  • one mode of adjusting the first transmit power of the M carriers is: determining each of the services according to a service priority corresponding to a signal transmitted by each of the M carriers a second transmit power of the carrier; adjusting a first transmit power of each of the M carriers according to the second transmit power of each carrier.
  • the method for adjusting a first transmit power of each of the M carriers according to the second transmit power of each carrier is: using the M carriers The first transmit power of each carrier is adjusted to be equal to the second transmit power of each of the carriers.
  • one mode of adjusting the first transmit power of the M carriers is: determining, according to a service priority corresponding to a signal transmitted by each carrier of the M carriers, each of the M carriers a power adjustment value of each carrier; adjusting a first transmission power of each of the M carriers according to a power adjustment value of each of the M carriers.
  • the method for adjusting a first transmit power of each of the M carriers according to a power adjustment value of each of the M carriers is: The first transmit power of the carriers is adjusted to be the difference between the first transmit power of each carrier and the power adjustment value of each of the carriers. Or determining, according to a service priority corresponding to a signal transmitted by each of the M carriers, a second transmit power of each carrier; and adjusting a first transmit power of each of the M carriers Is equal to the difference between the second transmit power of each carrier and the power adjustment value.
  • the method for determining the second transmit power of each carrier according to the service priority corresponding to the signal transmitted by each of the M carriers is: A service priority corresponding to a signal transmitted by each carrier of the M carriers, and a correspondence between a service priority and a second transmit power, determining a second transmit power of each of the M carriers. Or, obtaining the first M second transmission powers from the K second transmission powers in descending order; according to the order of the second transmission power from the largest to the smallest and the order of the service priorities from high to low, The first M second transmit powers are determined one by one as the second transmit power of the M carriers.
  • the M second transmit powers corresponding to the first M service priorities are obtained from the K service priorities; according to the order of the service priorities from high to low, the The M second transmit powers are determined one-to-one correspondingly to the second transmit power of the M carriers.
  • K is an integer greater than or equal to M.
  • the method for determining a power adjustment value of each of the M carriers according to the service priority corresponding to the signal transmitted by each of the M carriers is: A service priority corresponding to a signal transmitted by each carrier of the M carriers, and a correspondence between a service priority and a power adjustment value, and determining a power adjustment value of each of the M carriers.
  • the M power adjustment values corresponding to the first M service priorities are obtained from the K service priorities according to the order of the service priorities; the M is determined according to the order of the service priorities from high to low.
  • the power adjustment values are determined one by one as the power adjustment values of the M carriers.
  • K is an integer greater than or equal to M.
  • the second transmit power corresponding to each service priority is obtained according to the reference transmit power density of the data packet of each service priority and the number of resource blocks occupied by the data packet.
  • the signal transmitted by the carrier includes a control signal and data; and the manner of adjusting the first transmit power of the M carriers of the N carriers is: adjusting the M carrier transmissions The first transmit power of the control signal and data. Or, maintaining a first transmit power of the control signals transmitted by the M carriers, and adjusting a first transmit power of the data transmitted by the M carriers.
  • the method for adjusting the first transmit power of the M carriers of the N carriers according to the service priority corresponding to the signal transmitted by each of the N carriers is: Adjusting, according to a service priority corresponding to a signal transmitted by each carrier of the N carriers, a first transmit power of M carriers of the N carriers according to a sequence of service priorities from low to high.
  • the adjusted first transmit power of the Q carriers in the M carriers is less than the minimum transmit power, And then discarding the signal transmitted on the L carriers of the Q carriers, where Q is a positive integer less than or equal to M, and the L is an integer less than or equal to the Q.
  • the method for discarding the signals transmitted on the L carriers of the Q carriers is: the order of the traffic corresponding to the signals transmitted by the Q carriers is from low to high. And transmitting the signals transmitted on the L carriers in sequence, so that the sum of the first transmit powers except the L carriers in the N carriers is less than or equal to the maximum transmit power. Or randomly discarding signals transmitted on the L carriers of the Q carriers.
  • an embodiment of the present application provides a communications apparatus, including: an acquiring module and a processing module;
  • an acquiring module configured to acquire a first transmit power of each of the N carriers; the N is an integer greater than or equal to 1.
  • a processing module configured to: when the sum of the first transmit powers of the N carriers is greater than the maximum transmit power, adjust the N carriers according to the service priority corresponding to the signal transmitted by each of the N carriers a first transmit power of the M carriers to reduce a sum of first transmit powers of the N carriers; the M being an integer greater than or equal to 1, the N being greater than or equal to the M.
  • the processing module is specifically configured to: determine, according to a preset service priority and a service priority corresponding to a signal transmitted by each carrier of the N carriers, from the N carriers The carrier corresponding to the service priority of the signal is lower than the preset service priority is the M carriers; and the M carriers are adjusted according to the service priority corresponding to the signal transmitted by each carrier of the M carriers First transmit power.
  • the processing module is specifically configured to: determine, according to a service priority corresponding to a signal transmitted by each of the M carriers, a scaling factor of each carrier; A scaling factor of the carrier, adjusting a first transmit power of each of the carriers.
  • the processing module is configured to: adjust a first transmit power of each carrier to be equal to a product of a first transmit power of each carrier and a scaling factor of each carrier .
  • the scaling factor is a positive number or zero.
  • the processing module is configured to: determine, according to a service priority corresponding to a signal transmitted by each of the M carriers, a second transmit power of each carrier; The first transmit power of each carrier is adjusted by a scaling factor of each carrier and a second transmit power of each of the carriers.
  • the processing module is configured to: adjust a first transmit power of each carrier to be equal to a product of a second transmit power of each carrier and a scaling factor of each carrier Wherein the scaling factor is a positive number or zero.
  • the obtaining module is further configured to: before the processing module adjusts the first transmit power of each carrier according to a scaling factor of each carrier and a second transmit power of each carrier And acquiring a difference between a sum of first transmit powers of the N carriers and the maximum transmit power.
  • the processing module is configured to: adjust a first transmit power of each carrier to be equal to a difference between a second transmit power of each carrier and a first value, where the first value is the difference and the A product of first coefficients of each carrier, the first coefficient of each carrier being related to a scaling factor of each carrier.
  • the acquiring module is further configured to acquire the first transmission of the N carriers before the processing module adjusts the first transmit power of each carrier according to the scaling factor of each carrier. The difference between the sum of power and the maximum transmit power.
  • the processing module is configured to: reduce a first transmit power of each carrier by a first value, where the first value is a product of the difference and a first coefficient of each carrier, where each The first coefficient of the carrier is related to the scaling factor of each of the carriers.
  • sf(Pj) is a scaling factor corresponding to the service priority Pj of the signal transmitted by each of the M carriers
  • sf'(Pj) is the service priority
  • the reciprocal of the scaling factor corresponding to the level Pj, sum(sf'(Pj)) is the sum of sf'(Pj) of the M carriers.
  • the processing module is configured to: determine, according to a service priority corresponding to a signal transmitted by each carrier of the M carriers, and a correspondence between a service priority and a scaling factor, The scaling factor of the carrier.
  • the first M scaling factors are obtained from the K scaling factors according to the order of the largest; and the M scaling is performed according to the order of the scaling factors from large to small and the order of the business priorities from high to low.
  • the factors are determined one by one as the scaling factor of the M carriers. or,
  • the processing module is configured to: determine, according to a service priority corresponding to a signal transmitted by each of the M carriers, a second transmit power of each carrier; The second transmit power of each carrier adjusts a first transmit power of each of the M carriers.
  • the processing module is specifically configured to: adjust a first transmit power of each of the M carriers to be equal to a second transmit power of each of the carriers.
  • the processing module is specifically configured to: determine, according to a service priority corresponding to a signal transmitted by each of the M carriers, a power adjustment value of each of the M carriers; A power adjustment value of each of the M carriers, adjusting a first transmission power of each of the M carriers.
  • the processing module is specifically configured to: adjust a first transmit power of each carrier to a difference between a first transmit power of each carrier and a power adjustment value of each carrier . Or determining, according to a service priority corresponding to a signal transmitted by each of the M carriers, a second transmit power of each carrier; and adjusting a first transmit power of each of the M carriers Is equal to the difference between the second transmit power of each carrier and the power adjustment value.
  • the processing module is specifically configured to: determine, according to a service priority corresponding to a signal transmitted by each carrier of the M carriers, and a correspondence between a service priority and a second transmit power, The second transmit power of each of the M carriers. Or, obtaining the first M second transmission powers from the K second transmission powers in descending order; according to the order of the second transmission power from the largest to the smallest and the order of the service priorities from high to low, The first M second transmit powers are determined one by one as the second transmit power of the M carriers.
  • the M second transmit powers corresponding to the first M service priorities are obtained from the K service priorities; according to the order of the service priorities from high to low, the The M second transmit powers are determined one-to-one correspondingly to the second transmit power of the M carriers.
  • K is an integer greater than or equal to M.
  • the processing module is specifically configured to determine the M according to a service priority corresponding to a signal transmitted by each carrier of the M carriers, and a correspondence between a service priority and a power adjustment value.
  • the power adjustment value of each carrier in each carrier in order from small to large, obtain the first M power adjustment values from the K power adjustment values; according to the order of the power adjustment values from small to large and the order of the service priorities from high to low, the first M
  • the power adjustment values are determined one by one as the power adjustment values of the M carriers.
  • the M power adjustment values corresponding to the first M service priorities are obtained from the K service priorities according to the order of the service priorities; the M is determined according to the order of the service priorities from high to low.
  • the power adjustment values are determined one by one as the power adjustment values of the M carriers.
  • K is an integer greater than or equal to M.
  • the second transmit power corresponding to each service priority is obtained according to the reference transmit power density of the data packet of each service priority and the number of resource blocks occupied by the data packet.
  • the signal transmitted by the carrier includes a control signal and data
  • the processing module is specifically configured to: adjust a first transmit power of the control signal and the data transmitted by the M carriers. Or, maintaining a first transmit power of the control signals transmitted by the M carriers, and adjusting a first transmit power of the data transmitted by the M carriers.
  • the processing module is specifically configured to: adjust the N according to a service priority corresponding to a signal transmitted by each carrier of the N carriers according to a service priority from low to high The first transmit power of the M carriers in the carrier.
  • the processing module is further configured to: after adjusting the first transmit power of the M carriers in the N carriers, if the adjusted first transmit power of the Q carriers in the M carriers If less than the minimum transmit power, the signal transmitted on the L carriers of the Q carriers is discarded, and the Q is a positive integer less than or equal to M, and the L is an integer less than or equal to the Q.
  • the processing module is configured to: discard the signals transmitted on the L carriers in sequence according to the priority of the traffic corresponding to the signals transmitted by the Q carriers, so that the The sum of the first transmit powers other than the L carriers in the N carrier is less than or equal to the maximum transmit power. Or randomly discarding signals transmitted on the L carriers of the Q carriers.
  • an embodiment of the present application provides a communications apparatus, including: a memory and a processor;
  • the memory is configured to store program instructions
  • the processor is configured to invoke the program instructions stored in the memory to implement the communication method according to the first aspect of the present application.
  • an embodiment of the present application provides a chip, including: a memory and a processor;
  • the memory is configured to store program instructions
  • the processor is configured to invoke the program instructions stored in the memory to implement the communication method according to the first aspect of the present application.
  • an embodiment of the present application provides a storage medium, including: a readable storage medium and a computer program, where the computer program is used to implement the communication method according to the first aspect of the present application.
  • the communication method and apparatus provided by the embodiment of the present application when the sum of the first transmit powers of the N carriers is greater than the maximum transmit power, adjust the service priority according to the service priority corresponding to the signal transmitted by each of the N carriers
  • the first transmit power of the M carriers of the N carriers When the first transmit power of the carrier is adjusted, the service priority corresponding to the signal transmitted by the carrier is referenced, so that the performance requirement of the service with different service priorities can be met, and the transmission performance requirement of the service with high service priority is preferentially ensured when the power is adjusted.
  • the transmission performance of the service with high service priority is prevented from being degraded, so that the service with higher service priority has more suitable transmission power than the low service priority, so that the reception reliability is higher, the coverage is larger, and the vehicle network is met. Business needs.
  • FIG. 1 is a schematic structural diagram of a communication system to which an embodiment of the present application is applied;
  • FIG. 2 is a flowchart of a communication method according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of adjusting a first transmit power according to an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram of a communication apparatus according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a communication apparatus according to another embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the communication system includes a network device and at least one terminal.
  • the network device is illustrated by a base station, and the terminal shows three, where FIG. 1 shows
  • the communication system is a car network communication system, the terminals 1 to 3 are vehicle terminals, the terminal 1 and the terminal 2 are within the network coverage of the base station, and the terminal 1 and the terminal 2 can communicate with the base station; the terminal 3 is at the base station. Outside the network coverage, it cannot communicate with the base station.
  • the terminal 1, the terminal 2 and the terminal 3 can communicate with other terminals within the coverage of the signal without being relayed via the base station and other network devices, that is, the terminals can communicate with each other.
  • GSM Global System for Mobile communications
  • Code Division Multiple Access Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access Wireless
  • FDMA Frequency Division Multiple Addressing
  • OFDMA orthogonal frequency Orthogonal Frequency-Division Multiple Access
  • SC-FDMA single carrier FDMA
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • E-UTRA 5G mobile communication systems
  • 5G mobile communication systems sidelink communication systems, and other such communication systems.
  • the terminal involved in the embodiment of the present application is, for example, a user equipment, and may be a wired terminal or a wireless terminal, and the wireless terminal may be a device that provides voice and/or data connectivity to the user, and has a wireless connection function.
  • the wireless terminal can communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and with a mobile terminal
  • RAN Radio Access Network
  • the computers for example, can be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices that exchange language and/or data with the wireless access network.
  • the wireless terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, and a remote terminal.
  • Access Terminal User Terminal, User Agent, User Device, User Equipment, V-UE (Vehicle UE, Vehicle Device/Vehicle Terminal), Handheld mobile devices, etc.
  • the communication device that performs the embodiments of the present application is taken as an example of the in-vehicle terminal. It should be noted that the embodiment is not limited thereto.
  • FIG. 2 is a flowchart of a communication method according to an embodiment of the present application. As shown in FIG. 2, the method in this embodiment may be performed by, for example, but not limited to, an in-vehicle terminal in an Internet of Vehicles.
  • the methods can include:
  • the in-vehicle terminal acquires a first transmit power of each of the N carriers, and the first transmit power may also be referred to as an estimated transmit power or an estimated transmit power, where the N carriers may be the in-vehicle terminal and other A carrier used by one or more in-vehicle terminals for communication.
  • the vehicle terminal can calculate or acquire the first transmit power of each of the N carriers according to the open loop power control process of the V2X and the data packet information to be sent by the onboard terminal on each of the N carriers (ie, prediction For the specific implementation process, refer to the related description in the prior art, and details are not described herein again.
  • the power values of the first transmit power of each carrier may be the same or different.
  • the expected transmit power on each carrier includes the expected transmit power of all signals or channels of the UE on the carrier for a certain period of time (eg, within a certain subframe); the signal or channel herein includes at least one of the following: UE at PSCCH The control signal transmitted on the uplink, the data transmitted by the UE on the PSSCH, the broadcast information transmitted by the UE on the PSBCH, the discovery signal transmitted by the UE on the PSDCH, and the bypass synchronization signal transmitted by the UE.
  • the first transmit power of the at least one carrier of the N carriers is adjusted to be M carriers, so that After a transmit power adjustment, the sum of the first transmit powers of the N carriers decreases.
  • different services define eight service levels, for example, ProSe Per-Packet Priority (PPPP), and the application layer selects a PPPP according to the characteristics of the service, that is, selects the service priority corresponding to the service.
  • PPPP ProSe Per-Packet Priority
  • SCI Sidelink Control Information
  • Carrier number Candidate carrier set of vehicle terminal 1 Candidate carrier set of vehicle terminal 2 Carrier 1 (CC1) Priority 1 Carrier 2 (CC2) Priority 3 Priority 1 Carrier 3 (CC3) Priority 2 Carrier 4 (CC4) Priority 4
  • the candidate carrier set of the in-vehicle terminal 1, that is, the N carriers include carriers 1, 2, and 3.
  • the candidate carrier set of the in-vehicle terminal 2, that is, N carriers includes carrier 2 and carrier 4.
  • the service priority corresponding to the signal transmitted by carrier 1 is priority 1
  • the service priority corresponding to the signal transmitted by carrier 2 is priority 3
  • the service priority corresponding to the signal transmitted by carrier 3 is Priority 2.
  • the service priority corresponding to the signal transmitted by the carrier 2 is the priority 1
  • the service priority corresponding to the signal transmitted by the carrier 4 is the priority 4.
  • the service priority of the transmitted signals may be different.
  • the first transmit power of the M carriers in the N carriers may be adjusted according to a service priority corresponding to a signal transmitted by each of the N carriers.
  • the M carriers may be part of the N carriers, or the M carriers are equal to the N carriers. If the sum of the first transmit powers of the N carriers is less than or equal to the maximum transmit power, it is not necessary to adjust the first transmit power of any carrier, and the power values of the first transmit powers of the respective carriers acquired in the above S201 are also used as the respective The actual transmit power of the carrier.
  • the first transmit power of some carriers of the M carriers may be adjusted, or the first transmit power of some carriers of the M carriers may be reduced, as long as the N carriers are ensured after adjustment. The sum of the first transmit powers is reduced, even to less than or equal to the maximum transmit power.
  • the first transmit power of some of the M carriers may be adjusted to zero.
  • the first transmit power of the three carriers can be used in this embodiment. Both are reduced, and finally the sum of the first transmit powers of the three carriers is equal to the maximum transmit power.
  • the service priorities of the signals transmitted by the three carriers are P1, P2, and P3, respectively, where P1 is higher than P2 and higher than P3. Therefore, the first transmit power of the carrier of P1 is decreased in this embodiment.
  • the M of the N carriers are adjusted according to the service priority corresponding to the signal transmitted by each of the N carriers.
  • the first transmit power of the carrier When the first transmit power of the carrier is adjusted, the service priority corresponding to the signal transmitted by the carrier is referenced, so that the performance requirement of the service with different service priorities can be met, and the transmission performance requirement of the service with high service priority is preferentially ensured when the power is adjusted.
  • the transmission performance of the service with high service priority is prevented from being degraded, so that the service with higher service priority has more suitable transmission power than the low service priority, so that the reception reliability is higher, the coverage is larger, and the vehicle network is met. Business needs.
  • how to adjust the first transmit power by selecting M carriers from the N carriers according to the service priority corresponding to the signal transmitted by each carrier is: according to the preset service priority. a service priority corresponding to a signal transmitted by each of the N carriers, and determining, by the N carriers, a carrier whose service priority is lower than the preset service priority is the M And transmitting, according to the service priority corresponding to the signal transmitted by each of the M carriers, the first transmit power of the M carriers.
  • the preset service priority may be preset, or the preset service priority may be configured by the network device (for example, a base station) to the in-vehicle terminal.
  • the carrier whose service priority is lower than the preset service priority is determined as the M carriers that need to adjust the first transmit power, so that the service priority of the service priority higher than the preset service priority can be ensured. Transmission performance requirements.
  • the carrier with a service priority higher than the preset service priority in the N carriers does not need to adjust the first transmit power, that is, the power value of the first transmit power remains unchanged; or, the N is
  • the first transmit power of the carrier whose carrier priority is higher than the preset service priority is adjusted to be equal to the second transmit power of the carrier, and the second transmit power is referred to as the reference transmit power, and the reference transmit power may be See the description below.
  • the first transmit power of each of the M carriers is adjusted according to a service priority corresponding to the signal transmitted by each of the M carriers: according to each of the N carriers
  • the first transmit power of the M carriers of the N carriers is adjusted in a sequence from low to high corresponding to the service priority of the signals transmitted by the carriers.
  • the service priority corresponding to the signal transmitted by each carrier of the N carriers is sorted from low to high, and the carrier whose carrier priority is the lowest service priority is adjusted from the carrier of the transmitted signal.
  • the first transmit power is adjusted according to the order of the service priority from low to high, and the first transmit power of the carrier is adjusted until the sum of the first transmit powers of the N carriers is less than or equal to the highest transmit power, and the first transmit power of the carrier is stopped.
  • the number of carriers that are finally adjusted by the first transmission power is recorded as M, that is, the first transmission power of the M carriers is adjusted.
  • the first transmit power of the M carriers is sequentially adjusted according to the order of the service priority from low to high, so as to meet the limitation of the maximum transmit power, so that the service with high service priority has the appropriate transmit power. It is possible to ensure the transmission performance requirements of services with relatively high service priority, and also ensure that high priority services have better transmission performance than low priority services.
  • the following embodiments describe how to adjust the first transmit power of each carrier according to the service priority corresponding to the signal transmitted by each carrier.
  • the first transmit power is adjusted according to a scaling factor.
  • the first transmit power is adjusted according to the second transmit power.
  • the first transmit power is adjusted according to the power adjustment value.
  • the scaling factor of the carriers adjusts the first transmit power of each carrier.
  • the scaling factor of each carrier is determined according to the service priority corresponding to the signal transmitted by each of the M carriers, and then the corresponding first transmission power of the carrier is adjusted according to the scaling factor of the carrier.
  • the scaling factor of adjusting the first transmit power reference of each carrier in this embodiment is determined according to the service priority of the carrier.
  • the adjusting the first transmit power of each carrier may include the following three possible implementation manners according to the scaling factor of each carrier, but the embodiment is not limited to the three.
  • the first transmit power of each carrier is adjusted to be equal to a product of a first transmit power of each carrier and a Scaling Factor of each carrier; Wherein the scaling factor is a positive number or zero.
  • Ptx'(Ci) Ptx(Ci)*sf(Pj), where Ptx'(Ci) is the first transmit power of the adjusted carrier, and Ptx(Ci) is the first transmit of the carrier Ci before the adjustment.
  • the power, sf(Pj) is the scaling factor corresponding to the service priority Pj corresponding to the signal transmitted by the carrier.
  • the scaling factor may be a value greater than 1. In this case, the corresponding first transmit power is increased.
  • the scaling factor may be a value greater than 0 and less than 1. In this case, the corresponding first transmit power is reduced, if scaling.
  • the factor is equal to 0, which corresponds to adjusting the first transmit power to zero.
  • the embodiment determines a second transmit power of each carrier according to a service priority corresponding to a signal transmitted by each of the M carriers, where the second transmit power is, for example, Referring to the transmit power, the first transmit power of the corresponding carrier is adjusted according to the second transmit power of the carrier and the scaling factor of the carrier.
  • the scaling factor and the second transmit power of adjusting the first transmit power reference of each carrier are determined according to the service priority of the carrier.
  • the first transmit power of each carrier may be adjusted to be equal to a product of a second transmit power of each carrier and a scaling factor of each carrier; wherein the scaling factor Is a positive number or zero.
  • Ptx'(Ci) Pref(Pj)*sf(Pj), where Ptx'(Ci) is the first transmit power of the adjusted carrier Ci, and Pref(Pj) is the second transmit power of the carrier, Sf(Pj) is a scaling factor corresponding to the service priority Pj corresponding to the signal transmitted by the carrier.
  • the first transmit power of the N carriers before adjusting the first transmit power of each carrier, because the sum of the first transmit powers of the N carriers is greater than the maximum transmit power, the first transmit power of the N carriers is also obtained in this embodiment.
  • the difference between the sum and the maximum transmit power the difference being a positive number.
  • the embodiment adjusts the first transmit power of each carrier according to the difference, the scaling factor of each carrier, and the second transmit power of each carrier.
  • the first transmit power of each carrier is adjusted to be equal to a difference between the second transmit power of each carrier and the first value, where the first value is the obtained difference and each of the A product of first coefficients of the carrier, and the first coefficient of each carrier is related to a scaling factor for each carrier.
  • the scaling factor corresponding to the service priority Pj of the signal sf'(Pj) is the reciprocal of the scaling factor corresponding to the service priority Pj, and sum(sf'(Pj)) is the sf'(Pj) of the M carriers with.
  • the first coefficient is a normalized scaling factor, that is, the first coefficient is a number greater than or equal to 0 and less than or equal to 1.
  • the first transmit power of the M carriers is adjusted in such a manner that the sum of the decrease values of the second transmit powers of the M carriers is equal to the difference, which is equivalent to apportioning the difference to the M carriers to reduce the power.
  • Pref(Pj) is the second transmit power of the carrier
  • ⁇ P is the difference between the sum of the first transmit powers of the N carriers and the maximum transmit power.
  • the scaling factor of each carrier is a positive number, and the higher the service priority of the signal transmitted by the carrier, the larger the scaling factor of the carrier, the smaller the first coefficient, and the first subtracted when the first transmit power is adjusted.
  • the embodiment adjusts the first transmit power of each carrier according to the difference, the scaling factor of each carrier, and the first transmit power of each carrier. For example, in this embodiment, the first transmit power of each carrier is decreased by a first value, wherein the first value is a product of the obtained difference and the first coefficient of each carrier, and the carrier of each carrier The first coefficient is related to the scaling factor of each carrier.
  • the scaling factor corresponding to the service priority Pj of the signal sf'(Pj) is the reciprocal of the scaling factor corresponding to the service priority Pj, and sum(sf'(Pj)) is the sf'(Pj) of the M carriers with.
  • the first coefficient is a normalized scaling factor, that is, the first coefficient is a number greater than or equal to 0 and less than or equal to 1.
  • the scaling factor of each carrier is a positive number, and the higher the service priority of the signal transmitted by the carrier, the larger the scaling factor of the carrier, and the smaller the first coefficient, the first transmission of the carrier is adjusted by using the above formula. The smaller the first value subtracted from the power, the higher the priority of the service has the appropriate transmit power, and the higher priority service has better transmission performance than the low priority service, ensuring the service with high service priority. Transmission performance requirements.
  • Adjusting the first transmit power of the M carriers according to the difference between the sum of the first transmit powers of the N carriers and the maximum transmit power may reduce the difference between the last actual transmit power and the maximum transmit power.
  • the determining, according to the service priority of the signal transmitted by each of the M carriers, the scaling factor of each carrier may include the following three possible implementation manners, but the embodiment is not limited to the third Kind.
  • the scaling factor of each carrier is determined according to a service priority corresponding to a signal transmitted by each carrier of the M carriers, and a correspondence between a service priority and a scaling factor.
  • a correspondence between the service priority and the scaling factor, and the corresponding relationship may be preset, or the corresponding relationship may be a broadcast message by a network device (for example, a base station) (for example, a system information block (SystemInformation) Bloc, SIB) message) is configured for the vehicle terminal.
  • a network device for example, a base station
  • SIB system information block
  • the correspondence relationship may be a one-to-one correspondence between the service priority and the scaling factor, that is, each service priority is configured with a scaling factor, and it is assumed that P0 indicates that the service priority is the highest, and the corresponding sf_0 value is also the largest, and sf_0-sf_7 Not the same.
  • at least one service priority is configured with a scaling factor. For example, the first four service priorities correspond to one scaling factor, then sf_0-sf_3 are the same, and the last four service priorities correspond to another scaling factor, then sf_4- Sf_7 is the same.
  • the scaling factors determined are sf_1, sf_2, and sf_3, respectively.
  • the first M scaling factors are obtained from the K scaling factors according to the order from large to small; and the order of scaling factors from large to small and the priority of the service are high to low.
  • the M scaling factors are determined in a one-to-one correspondence as a scaling factor of the M carriers.
  • K is an integer greater than or equal to M
  • K scaling factors may be preset, or the K scaling factors may be configured by a network device (for example, a base station) by using a broadcast message to the in-vehicle terminal.
  • the K scaling factors are different.
  • the K scaling factors are sorted according to the scaling factor from the largest to the smallest, and the top scaling factor is the largest. Therefore, the first M scaling factors are taken in this embodiment.
  • the maximum scaling factor is used as the scaling factor corresponding to the highest service priority, and the M scaling factors are determined in a one-to-one correspondence to M in accordance with the order of scaling factors from large to small and the order of service priority from high to low.
  • the scaling factors of the carriers are different, and the scaling factors of the M carriers determined in this embodiment are different. In the manner of this embodiment, the higher the priority of the service is, the larger the determined scaling factor is.
  • the M scaling factors corresponding to the first M service priorities are obtained from the K service priorities according to the priority of the service priority; and the service priority is from the highest to the highest.
  • the M scaling factors are determined in a one-to-one correspondence as a scaling factor of the M carriers.
  • K is an integer greater than or equal to M, and there is a correspondence between the K service priorities and the scaling factor, and the correspondence may be preset, or the corresponding relationship may be a network device (for example, a base station). Configured by the broadcast message to the vehicle terminal.
  • the correspondence is as shown in Table 2 above, for example.
  • the service priorities of the signals transmitted by the M carriers are P1, P2, and P3, which are the three service priorities
  • the first three service priorities with the highest service priority are obtained according to Table 2 above (P0).
  • the scaling factors corresponding to P1 and P2) are sf_0, sf_1, and sf_2 respectively. Since the service priority P1 is higher than P2 and higher than P3, sf_0 is used as the scaling factor corresponding to the service priority P1, and sf_1 is used as the service priority P2. Corresponding scaling factor, sf_2 is used as the scaling factor corresponding to the service priority P3.
  • the second transmit power of each carrier may be determined according to a service priority corresponding to a signal transmitted by each of the M carriers, where the second transmit power may be referred to as a reference transmit power, and then according to the carrier.
  • the second transmit power adjusts the corresponding first transmit power of the carrier.
  • adjusting the second transmit power of the first transmit power reference of each carrier is determined according to the service priority of the carrier.
  • the adjustment of the first transmit power of each carrier may include the following possible implementation manners according to the second transmit power of each carrier, but the embodiment is not limited thereto. For example, refer to other possible implementations in this application. the way.
  • a first transmit power of each of the M carriers is adjusted to be equal to a second transmit power of each of the carriers.
  • Ptx'(Ci) Pref(Pj)
  • Ptx'(Ci) is the first transmit power of the adjusted carrier
  • Pref(Pj) is the second transmit power obtained by the carrier according to the corresponding service priority.
  • the power adjustment value of each carrier is determined according to the service priority corresponding to the signal transmitted by each of the M carriers, and then the corresponding first transmission of the carrier is adjusted according to the power adjustment value of the carrier. power.
  • the power adjustment value of the first transmit power reference of each carrier is adjusted according to the service priority of the carrier.
  • the power adjustment value may be positive or negative or zero.
  • the adjusting the first transmit power of each carrier according to the power adjustment value of each carrier may include the following two possible implementation manners, but the embodiment is not limited to the two.
  • the first transmit power of each carrier is adjusted to be the difference between the first transmit power of each carrier and the power adjustment value of each carrier.
  • Ptx'(Ci) Ptx(Ci)-Pstep(Pj), where Ptx'(Ci) is the first transmit power of the adjusted carrier Ci, and Ptx(Ci) is the first transmit of the carrier before the adjustment.
  • Power, Pstep(Pj) is the power adjustment value corresponding to the service priority Pj corresponding to the signal transmitted by the carrier.
  • the power adjustment value may be a value greater than 0. In this case, the corresponding first transmit power is reduced; the power adjustment value may also be a value less than 0, and the corresponding first is to increase the first transmit power; If the power adjustment value is 0, the corresponding first transmit power is not adjusted.
  • determining a second transmit power of each carrier according to a service priority corresponding to a signal transmitted by each of the M carriers; and each of the M carriers The first transmit power of the carriers is adjusted to be equal to the difference between the second transmit power of the each carrier and the power adjustment value.
  • the first transmit power of each carrier is adjusted according to the second transmit power of each carrier and the power adjustment value of each carrier. For example, in this embodiment, the first transmit power of each carrier is adjusted to be equal to the difference between the second transmit power of each carrier and the power adjustment value of each carrier.
  • Ptx'(Ci) Pref(Pj)-Pstep(Pj), where Ptx'(Ci) is the first transmit power of the adjusted carrier, and Pref(Pj) is the second transmit power of the carrier, Pstep (Pj) is a power adjustment value corresponding to the service priority Pj corresponding to the signal transmitted by the carrier.
  • the determining the power adjustment value of each carrier may include the following three possible implementation manners according to the service priority corresponding to the signal transmitted by each of the M carriers, but the embodiment is not limited thereto. Three kinds.
  • the power adjustment of each carrier is determined according to a service priority corresponding to a signal transmitted by each carrier of the M carriers, and a correspondence between a service priority and a power adjustment value. value.
  • a service priority corresponding to a signal transmitted by each carrier of the M carriers
  • a power adjustment value a power adjustment value.
  • there is a corresponding relationship between the service priority and the power adjustment value and the corresponding relationship may be preset, or the corresponding relationship may be configured by the network device (for example, the base station) to the in-vehicle terminal by using a broadcast message.
  • the correspondence is as shown in Table 3.
  • the corresponding relationship may be a one-to-one correspondence between the service priority and the power adjustment value, that is, each service priority is configured with a power adjustment value, and it is assumed that P0 indicates that the service priority is the highest, and the corresponding Pstep0 value is also the smallest, Pstep0- Pstep7 is different.
  • at least one service priority is configured with a power adjustment value. For example, the first four service priorities correspond to one power adjustment value, then Pstep0-Pstep3 are the same, and the last four service priorities correspond to another power adjustment value. Then Pstep4-Pstep7 is the same.
  • the power adjustment values determined respectively are Pstep1, Pstep2, and Pstep3.
  • the first M power adjustment values are obtained from the K power adjustment values according to the order from small to large; and the power adjustment values are in descending order and the service priority is from high to low.
  • the order of determining the M power adjustment values in a one-to-one correspondence is the power adjustment value of the M carriers.
  • K is an integer greater than or equal to M, and the K power adjustment values may be preset.
  • the K power adjustment values may be configured by the network device (for example, a base station) by using a broadcast message to the vehicle-mounted terminal. The K power adjustment values are different.
  • the K power adjustment values are sorted according to the order of the power adjustment values from the smallest to the largest, and the power adjustment value ranked first is the smallest. Therefore, the M is taken in this embodiment.
  • the power adjustment value, and then the minimum power adjustment value is taken as the power adjustment value corresponding to the highest service priority, and the M power adjustment values are in the order of the power adjustment value from small to large and the order of the service priority from high to low.
  • the power adjustment values of the M carriers are determined in a corresponding manner, and the power adjustment values of the M carriers determined in this embodiment are different. In the manner of this embodiment, it is ensured that the higher the service priority, the smaller the determined power adjustment value is.
  • the M power adjustment values corresponding to the first M service priorities are obtained from the K service priorities according to the priority of the service priority; and the service priority is higher according to the service priority.
  • the M power adjustment values are determined in a one-to-one correspondence as power adjustment values of the M carriers.
  • K is an integer greater than or equal to M, and there is a correspondence between the K service priorities and the power adjustment values, and the correspondence may be preset, or the corresponding relationship may be a network device (for example, a base station ) configured by the broadcast message to the vehicle terminal.
  • the corresponding relationship is, for example, as shown in Table 3 above.
  • the service priorities of the signals transmitted by the M carriers are P1, P2, and P3, which are the three service priorities
  • the first three service priorities with the highest service priority are obtained according to Table 3 above (P0).
  • the power adjustment values corresponding to P1, P1, and P2 are Pstep0, Pstep1, and Pstep2 respectively. Since the service priority P1 is higher than P2 and higher than P3, Pstep0 is used as the power adjustment value corresponding to the service priority P1, and Pstep1 is taken as the service priority.
  • the power adjustment value corresponding to the level P2 is Pstep2 as the power adjustment value corresponding to the service priority P3.
  • the determining, according to the service priority corresponding to the signal transmitted by each of the M carriers, determining the second transmit power of each carrier may include the following three possible implementation manners, but the embodiment is not limited to These three.
  • determining, according to a service priority corresponding to a signal transmitted by each carrier of the M carriers, and a correspondence between a service priority and a second transmit power determining the number of each carrier Two transmit power.
  • there is a corresponding relationship between the service priority and the second transmit power and the corresponding relationship may be preset, or the corresponding relationship may be configured by the network device (for example, a base station) by using a broadcast message to the in-vehicle terminal. .
  • the correspondence is as shown in Table 4, for example.
  • the correspondence may be a one-to-one correspondence between the service priority and the second transmit power, that is, each service priority is configured with a second transmit power, and it is assumed that P0 indicates that the service priority is the highest, and the corresponding Pref_0 value is also the largest.
  • Pref_0-Pref_7 is different.
  • at least one service priority is configured with a second transmit power.
  • the first four service priorities correspond to one second transmit power
  • the Pref_0-Pref_3 are the same
  • the last four service priorities correspond to the other second.
  • the transmit power, then Pref_4-Pref_7 are the same.
  • the second transmit powers respectively determined are Pref_1, Pref_2, and Pref_3.
  • the first M second transmit powers are obtained from the K second transmit powers according to the order from large to small; and according to the order of the second transmit power from large to small, and the service priority Determining, in descending order, the M second transmit powers are determined in a one-to-one correspondence as the second transmit power of the M carriers.
  • K is an integer greater than or equal to M
  • the K second transmit powers may be preset, or the K second transmit powers may be configured by the network device (for example, a base station) to the vehicle terminal through a broadcast message. of.
  • the K second transmit powers are different.
  • the K second transmit powers are sorted according to the order of the second transmit power from the largest to the smallest, and the second transmit power ranked first is the largest.
  • the embodiment takes the first M transmit powers, and then uses the second transmit power as the second transmit power corresponding to the highest service priority, in descending order of the second transmit power and the service priority from high to low.
  • the M second transmit powers are determined in a one-to-one correspondence as the second transmit power of the M carriers, and the second transmit powers of the M carriers determined in this embodiment are different. In the manner of this embodiment, it is ensured that the higher the service priority, the greater the determined second transmit power.
  • the M second transmit powers corresponding to the first M service priorities are obtained from the K service priorities according to the priority of the service priority; and the service priority is used according to the service priority.
  • the M second transmit powers are determined in a one-to-one correspondence as the second transmit power of the M carriers.
  • K is an integer greater than or equal to M, and there is a correspondence between the K service priorities and the second transmit power, and the corresponding relationship may be preset, or the corresponding relationship may be a network device (for example, The base station is configured by the broadcast message to the in-vehicle terminal.
  • the correspondence is as shown in Table 4 above, for example.
  • the service priorities of the signals transmitted by the M carriers are P1, P2, and P3, which are the three service priorities
  • the first three service priorities with the highest service priority are obtained according to Table 4 above (P0).
  • the second transmit power corresponding to P1, P1, and P2) is Pref_0, Pref_1, and Pref_2 respectively. Since the service priority P1 is higher than P2 and higher than P3, Pref_0 is used as the second transmit power corresponding to the service priority P1, and sf_1 is taken as The second transmit power corresponding to the service priority P2 is set to the second transmit power corresponding to the service priority P3.
  • the second transmit power corresponding to each service priority is obtained according to the reference transmit power density of the data packet of each service priority and the number of resource blocks occupied by the data packet.
  • Pref(Pj) PSD_ref(Pj)*N_rb
  • Pref(Pj) is the second transmit power corresponding to the service priority Pj
  • PSD_ref(Pj) is the reference transmit power density of the packet of the service priority Pj
  • N_rb is the number of resource blocks occupied by the data packet of the service priority Pj. N_rb may be different for different packets.
  • the signals transmitted on the L carriers of the Q carriers are discarded to avoid affecting the transmission performance of the signal.
  • the Q is a positive integer less than or equal to M
  • the L is an integer less than or equal to the Q.
  • the present embodiment sequentially discards the signals transmitted on the L carriers according to the order of the service priority of the signals transmitted by the Q carriers from low to high, so that the N carriers are in the N carrier.
  • the sum of the first transmit powers other than the L carriers is less than or equal to the maximum transmit power.
  • PSSCH may be transmitted on different carriers at the same time, and may be processed by the following priority criteria (high to low priority): SLSS/PSBCH>PSCCH&PSSCH> providing timing information for safety-related PSCCH/PSSCH signals is non-secure The associated PSCCH/PSSCH signal provides SLSS/PSBCH for timing information.
  • PSCCH & PSSCH are arranged according to business priorities.
  • the embodiment randomly discards signals transmitted on the L carriers of the Q carriers.
  • At least one of the Q carriers has the same service priority
  • at least part of the signal having the same service priority may be randomly discarded; or, the signal that arrives after the discard is discarded, and the arrival is The time from the application layer to the physical layer is later.
  • the first transmit power of the L carriers may be allocated to the remaining carriers to avoid waste of transmit power.
  • the signal transmitted by each of the carriers includes a control signal and data
  • the manner of adjusting the first transmit power of the M carriers in the N carriers may include the following two types, but the embodiment is not limited thereto. .
  • the first transmit power of the control signal and the data transmitted by the M carriers that is, the first transmit power of the control signal and the first transmit power of the data are adjusted.
  • the first transmit power of the control signals transmitted by the M carriers is kept unchanged, and the first transmit power of the data transmitted by the M carriers is adjusted, that is, the first transmit power of the control signal remains unchanged, Adjust the first transmit power of the data.
  • the 3dB power boosting factor of the PSCCH may be cancelled.
  • the priority threshold may be preset or configured by the eNB to the in-vehicle terminal through a broadcast message.
  • the sum of the first transmit powers of the N carriers is still greater than the maximum transmit power
  • the first transmit power of the adjusted N carriers is performed.
  • the specific implementation manner of adjusting the first transmit power may be different, and may be the same, which is not limited in this embodiment.
  • the power can be expressed in a linear manner or in a logarithmic manner.
  • the powers expressed in a linear manner are described as an example in the embodiments of the present application; if converted to a logarithmic processing mode, the power can be expressed in a logarithmic manner.
  • the performance degradation effect caused by the reduced signal to interference plus noise ratio (SINR) can be resisted by increasing the number of retransmissions.
  • the method or the step implemented by the vehicle-mounted terminal may also be implemented by a chip inside the vehicle-mounted terminal.
  • FIG. 4 is a schematic structural diagram of a communication apparatus according to an embodiment of the present disclosure. As shown in FIG. 4, the communication apparatus of this embodiment may include: an obtaining module 401 and a processing module 402.
  • the obtaining module 401 is configured to acquire a first transmit power of each of the N carriers, where the N is an integer greater than or equal to 1;
  • the processing module 402 is configured to: when the sum of the first transmit powers of the N carriers is greater than the maximum transmit power, adjust the N carriers according to a service priority corresponding to a signal transmitted by each of the N carriers a first transmit power of the M carriers to reduce a sum of the first transmit powers of the N carriers; the M is an integer greater than or equal to 1, and the N is greater than or equal to the M.
  • the processing module 402 is configured to: determine, according to a preset service priority and a service priority corresponding to a signal transmitted by each carrier of the N carriers, a signal transmitted from the N carriers.
  • the carrier whose service priority is lower than the preset service priority is the M carriers; and the M carrier is adjusted according to the service priority corresponding to the signal transmitted by each carrier of the M carriers A transmit power.
  • the processing module 402 is configured to: determine, according to a service priority corresponding to a signal transmitted by each of the M carriers, a scaling factor of each carrier; a scaling factor that adjusts a first transmit power of each of the carriers.
  • the processing module 402 is configured to: adjust a first transmit power of each carrier to be equal to a product of a first transmit power of each carrier and a scaling factor of each carrier; Wherein the scaling factor is a positive number or zero.
  • the processing module 402 is configured to: determine, according to a service priority corresponding to a signal transmitted by each of the M carriers, a second transmit power of each carrier; The first transmission power of each carrier is adjusted by a scaling factor of the carriers and a second transmission power of each of the carriers.
  • the processing module 402 is configured to: adjust a first transmit power of each carrier to be equal to a product of a second transmit power of each carrier and a scaling factor of each carrier; Wherein the scaling factor is a positive number or zero.
  • the obtaining module 401 is further configured to: before the processing module 402 adjusts the first transmit power of each carrier according to the scaling factor of each carrier and the second transmit power of each carrier Obtaining a difference between a sum of first transmit powers of the N carriers and the maximum transmit power;
  • the processing module 402 is configured to: adjust a first transmit power of each carrier to be equal to a difference between a second transmit power of each carrier and a first value, where the first value is the difference a product of a first coefficient of each carrier, the first coefficient of each carrier being related to a scaling factor of each carrier.
  • the obtaining module 401 is further configured to: before the processing module 402 adjusts the first transmit power of each carrier according to the scaling factor of each carrier, acquire the first transmit of the N carriers a difference between a sum of power and the maximum transmit power;
  • the processing module 402 is specifically configured to: reduce a first transmit power of each carrier by a first value, where the first value is a product of the difference and a first coefficient of each carrier, where each The first coefficients of the carriers are related to the scaling factor of each of the carriers.
  • the first coefficient of each carrier is related to a scaling factor of each carrier, including:
  • sf(Pj) is a scaling factor corresponding to the service priority Pj of the signal transmitted by each of the M carriers
  • sf'(Pj) is the reciprocal of the scaling factor corresponding to the service priority Pj
  • sum(sf' (Pj)) is the sum of sf' (Pj) of the M carriers.
  • the higher the level of the service priority the larger the scaling factor.
  • the processing module 402 is specifically configured to: determine, according to a service priority corresponding to a signal transmitted by each carrier of the M carriers, and a correspondence between a service priority and a scaling factor, determine each carrier. Scaling factor; or,
  • K is an integer greater than or equal to M.
  • the processing module 402 is specifically configured to: determine, according to a service priority corresponding to a signal transmitted by each of the M carriers, a second transmit power of each carrier;
  • the processing module 402 is specifically configured to: adjust a first transmit power of each of the M carriers to be equal to a second transmit power of each of the carriers.
  • the processing module 402 is specifically configured to: determine, according to a service priority corresponding to a signal transmitted by each of the M carriers, a power adjustment value of each of the M carriers;
  • the processing module 402 is configured to: adjust a first transmit power of each carrier to reduce a difference between a first transmit power of each carrier and a power adjustment value of each carrier ;or,
  • the processing module 402 is specifically configured to: determine, according to a service priority corresponding to a signal transmitted by each carrier of the M carriers, and a correspondence between a service priority and a second transmit power, determine the M Second transmit power of each of the carriers; or
  • the first M second transmit powers are determined one-to-one correspondingly to the second transmit power of the M carriers; or
  • the second transmit power is determined in a one-to-one correspondence as the second transmit power of the M carriers.
  • K is an integer greater than or equal to M.
  • the processing module 402 is configured to: determine, according to a service priority corresponding to a signal transmitted by each carrier of the M carriers, and a correspondence between a service priority and a power adjustment value, The power adjustment value of each carrier in the carrier; or,
  • the first M power adjustment values are obtained from the K power adjustment values in order from small to large; the first M power adjustments are performed according to the order of the power adjustment values from small to large and the order of the service priorities from high to low.
  • the values are determined one-to-one correspondingly as power adjustment values of the M carriers; or
  • the adjustment values are determined one by one as the power adjustment values of the M carriers.
  • K is an integer greater than or equal to M.
  • the second transmit power corresponding to each service priority is obtained according to a reference transmit power density of the data packet of each service priority and a resource block number occupied by the data packet.
  • the signal transmitted by the carrier includes a control signal and data; and the processing module 402 is specifically configured to:
  • the processing module 402 is specifically configured to: adjust, according to a service priority corresponding to a signal transmitted by each carrier of the N carriers, the N carriers according to a service priority from low to high.
  • the processing module 402 is further configured to: after adjusting the first transmit power of the M carriers in the N carriers, if the adjusted first transmit power of the Q carriers in the M carriers is less than The minimum transmitted power is discarded, and the signal transmitted on the L carriers of the Q carriers is discarded.
  • the Q is a positive integer less than or equal to M
  • the L is an integer less than or equal to the Q.
  • the processing module 402 is configured to: in turn, discard the signals transmitted on the L carriers according to the order of the service priorities of the signals transmitted by the Q carriers from low to high, so that the N is The sum of the first transmit powers of the carriers other than the L carriers is less than or equal to the maximum transmit power; or
  • the signals transmitted on the L carriers of the Q carriers are randomly discarded.
  • the communication device described above in this embodiment may be used to perform the technical implementation of the chip execution of the vehicle-mounted terminal/vehicle terminal in the foregoing method embodiments, and the implementation principle and the technical effect thereof are similar, and the functions of the respective modules may refer to the method embodiment. The corresponding description in the description will not be repeated here.
  • the above acquisition module 401 and processing module 402 may be embedded in hardware or in a processor independent of the communication device.
  • FIG. 5 is a schematic structural diagram of a communication apparatus according to another embodiment of the present disclosure.
  • the communication apparatus of this embodiment may include: a memory 501 and a processor 502.
  • the processor 502 may include a central processing unit (CPU), a digital signal processor (DSP), a microcontroller (Microcontroller Unit (MCU), and an application specific integrated circuit (ASIC). Or at least one of a Field-Programmable Gate Array (FPGA).
  • CPU central processing unit
  • DSP digital signal processor
  • MCU microcontroller
  • ASIC application specific integrated circuit
  • FPGA Field-Programmable Gate Array
  • a memory 501 configured to store program instructions
  • the processor 502 is configured to invoke the program instructions stored in the memory 501 to implement:
  • the M being an integer greater than or equal to 1, the N being greater than or equal to the M.
  • the processor 502 is configured to: determine, according to a preset service priority and a service priority corresponding to a signal transmitted by each of the N carriers, a signal transmitted from the N carriers.
  • the carrier whose service priority is lower than the preset service priority is the M carriers; and the M carrier is adjusted according to the service priority corresponding to the signal transmitted by each carrier of the M carriers A transmit power.
  • the processor 502 is configured to: determine, according to a service priority corresponding to a signal transmitted by each of the M carriers, a scaling factor of each carrier; a scaling factor that adjusts a first transmit power of each of the carriers.
  • the processor 502 is configured to: adjust a first transmit power of each carrier to be equal to a product of a first transmit power of each carrier and a scaling factor of each carrier; Wherein the scaling factor is a positive number or zero.
  • the processor 502 is configured to: determine, according to a service priority corresponding to a signal transmitted by each of the M carriers, a second transmit power of each carrier; The first transmission power of each carrier is adjusted by a scaling factor of the carriers and a second transmission power of each of the carriers.
  • the processor 502 is configured to: adjust a first transmit power of each carrier to be equal to a product of a second transmit power of each carrier and a scaling factor of each carrier; Wherein the scaling factor is a positive number or zero.
  • the processor 502 is further configured to: before adjusting the first transmit power of each carrier according to the scaling factor of each carrier and the second transmit power of each carrier, Determining a difference between a sum of first transmit powers of the N carriers and the maximum transmit power;
  • the processor 502 is configured to: when the first transmit power of each carrier is adjusted according to the scaling factor of each carrier and the second transmit power of each carrier, specifically, to: Transmitting power is adjusted to be equal to a difference between the second transmit power of each carrier and a first value, the first value being a product of the difference and a first coefficient of each carrier, each of each The first coefficient of the carrier is related to the scaling factor of each of the carriers.
  • the processor 502 is further configured to acquire a sum of first transmit powers of the N carriers before adjusting a first transmit power of each carrier according to a scaling factor of each carrier. a difference from the maximum transmit power;
  • the processor 502 is configured to: when the first transmit power of each carrier is adjusted according to a scaling factor of each carrier, specifically: reduce a first transmit power of each carrier by a first value, where A value is a product of the difference and a first coefficient of each carrier, the first coefficient of each carrier being related to a scaling factor of each carrier.
  • sf'(Pj) is the service priority Pj
  • the reciprocal of the corresponding scaling factor, sum(sf'(Pj)) is the sum of sf'(Pj) of the M carriers.
  • the higher the level of the service priority the larger the scaling factor.
  • the processor 502 is specifically configured to:
  • K is an integer greater than or equal to M.
  • the processor 502 is configured to: determine, according to a service priority corresponding to a signal transmitted by each of the M carriers, a second transmit power of each carrier; The second transmit power of the carriers adjusts a first transmit power of each of the M carriers.
  • the processor 502 is specifically configured to: adjust a first transmit power of each of the M carriers to be equal to a second transmit power of each of the carriers.
  • the processor 502 is configured to: determine, according to a service priority corresponding to a signal transmitted by each of the M carriers, a power adjustment value of each of the M carriers; A power adjustment value of each carrier of the carriers, and adjusting a first transmission power of each of the M carriers.
  • the processor 502 is specifically configured to:
  • the processor 502 is specifically configured to:
  • the first M second transmit powers are determined one-to-one correspondingly to the second transmit power of the M carriers; or
  • the second transmit power is determined in a one-to-one correspondence as the second transmit power of the M carriers.
  • K is an integer greater than or equal to M.
  • the processor 502 is specifically configured to:
  • the first M power adjustment values are obtained from the K power adjustment values in order from small to large; the first M power adjustments are performed according to the order of the power adjustment values from small to large and the order of the service priorities from high to low.
  • the values are determined one-to-one correspondingly as power adjustment values of the M carriers; or
  • the adjustment values are determined one by one as the power adjustment values of the M carriers.
  • K is an integer greater than or equal to M.
  • the second transmit power corresponding to each service priority is obtained according to a reference transmit power density of the data packet of each service priority and a resource block number occupied by the data packet.
  • the signal transmitted by the carrier includes a control signal and data
  • the processor 502 is specifically configured to: adjust a first transmit power of the control signal and the data transmitted by the M carriers; or
  • the processor 502 is specifically configured to:
  • the processor 502 is further configured to: after adjusting the first transmit power of the M carriers in the N carriers, if the adjusted first transmit power of the Q carriers in the M carriers is less than The minimum transmitted power is discarded, and the signal transmitted on the L carriers of the Q carriers is discarded.
  • the Q is a positive integer less than or equal to M
  • the L is an integer less than or equal to the Q.
  • the processor 502 is configured to: in turn, discard the signals transmitted on the L carriers according to the order of the traffic priority corresponding to the signals transmitted by the Q carriers, so that the N is The sum of the first transmit powers of the carriers other than the L carriers is less than or equal to the maximum transmit power; or
  • the signals transmitted on the L carriers of the Q carriers are randomly discarded.
  • the program instructions may be implemented in the form of a software functional unit and can be sold or used as a standalone product, which may be any form of computer readable storage medium. Based on such understanding, all or part of the technical solutions of the present application may be embodied in the form of a software product, including a plurality of instructions for causing a computer device, specifically a processor 502, to perform the first embodiment of the present application. All or part of a step in a device.
  • the foregoing computer readable storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. The medium of the code.
  • the communication device in this embodiment may further include a transceiver 503, and the transceiver 503 is configured to communicate with other communication devices (such as a base station, an in-vehicle terminal, etc.), for example, to send and receive data or signaling.
  • other communication devices such as a base station, an in-vehicle terminal, etc.
  • the communication device described above in this embodiment may be used to perform the technical implementation of the chip execution of the vehicle-mounted terminal/vehicle terminal in the foregoing method embodiments, and the implementation principle and the technical effect thereof are similar, wherein the functions of the respective devices may refer to the method embodiment.
  • the corresponding description in the description will not be repeated here.
  • FIG. 6 is a schematic structural diagram of a chip according to an embodiment of the present disclosure. As shown in FIG. 6 , the chip in this embodiment may include: a memory 601 and a processor 602. The memory 601 is communicatively coupled to the processor 602.
  • the above acquisition module 401 and processing module 402 may be embedded in or independent of the chip's processor 602 in hardware.
  • the memory 601 is used to store program instructions, and the processor 602 is configured to call program instructions in the memory 601 to execute the schemes of the foregoing embodiments.
  • the chip described above in this embodiment may be used to implement the technical solution of the in-vehicle terminal or the internal chip thereof in the foregoing method embodiments of the present application.
  • the implementation principle and the technical effect are similar.
  • the function of each module may refer to the method embodiment. The corresponding description will not be repeated here.
  • the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner.
  • the functional modules in the embodiments of the present application may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules.
  • the integrated modules if implemented in the form of software functional modules and sold or used as separate products, may be stored in a computer readable storage medium.
  • a computer readable storage medium A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a Solid State Disk (SSD)) or the like.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a DVD
  • a semiconductor medium such as a Solid State Disk (SSD)

Landscapes

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

Abstract

Certains modes de réalisation de l'invention concernent un procédé et un dispositif de communication. Le procédé consiste à : obtenir une première puissance de transmission de chacune des N porteuses, N étant un nombre entier supérieur ou égal à un; et lorsqu'une somme de la première puissance de transmission des N porteuses est supérieure à une puissance de transmission maximale, ajuster, en fonction d'une priorité de service correspondant à un signal émis par chacune des N porteuses, la première puissance de transmission des M porteuses des N porteuses de façon à réduire la somme de la première puissance de transmission des N porteuses, M étant un nombre entier supérieur ou égal à un, et N étant supérieur ou égal à M. Comme les priorités de service correspondant à des signaux transmis par des porteuses sont désignées lorsque la première puissance de transmission des porteuses est ajustée, les exigences de performance de services ayant différentes priorités de service peuvent être satisfaites. Lorsque la puissance est ajustée, les exigences de performance de transmission d'un service ayant une priorité de service élevée sont d'abord garanties afin que le service ayant une priorité de service élevée dispose d'une puissance de transmission plus appropriée. Par conséquent, la fiabilité de la réception est améliorée, la couverture est plus grande et les exigences des services de l'Internet des véhicules sont remplies.
PCT/CN2018/112297 2017-11-17 2018-10-29 Procédé et dispositif de communication WO2019095977A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711148673.1A CN109803366A (zh) 2017-11-17 2017-11-17 通信方法和装置
CN201711148673.1 2017-11-17

Publications (1)

Publication Number Publication Date
WO2019095977A1 true WO2019095977A1 (fr) 2019-05-23

Family

ID=66539377

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/112297 WO2019095977A1 (fr) 2017-11-17 2018-10-29 Procédé et dispositif de communication

Country Status (2)

Country Link
CN (2) CN115996457A (fr)
WO (1) WO2019095977A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4255042A3 (fr) * 2022-03-29 2024-01-03 Beijing Xiaomi Mobile Software Co., Ltd. Procédé et dispositif de commande de puissance montante

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116528189A (zh) * 2022-01-21 2023-08-01 西安紫光展锐科技有限公司 通信方法、装置、存储介质及程序产品

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1894867A (zh) * 2003-12-17 2007-01-10 高通股份有限公司 用于多载波终端中发射功率的优先化分配的装置和方法
US20100197339A1 (en) * 2009-02-03 2010-08-05 Nokia Siemens Networks Oy Uplink Power Control For Multiple Component Carriers
CN102308640A (zh) * 2009-02-09 2012-01-04 交互数字专利控股公司 利用多载波的无线发射/接收单元的上行链路功率控制的装置和方法
CN102821449A (zh) * 2011-06-08 2012-12-12 中兴通讯股份有限公司 一种上行信号发射功率削减的方法和装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2244515A1 (fr) * 2009-04-23 2010-10-27 Panasonic Corporation Procédure de priorisation de canal logique pour générer plusieurs blocs de transport de liaison montante
CN102158942B (zh) * 2010-02-12 2013-11-06 华为技术有限公司 功率控制方法、网络设备和终端
CN102300305B (zh) * 2011-09-23 2013-09-04 电信科学技术研究院 一种上行功率控制的方法及装置
CN103096451B (zh) * 2011-11-07 2016-08-03 华为技术有限公司 一种资源分配的方法及基站

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1894867A (zh) * 2003-12-17 2007-01-10 高通股份有限公司 用于多载波终端中发射功率的优先化分配的装置和方法
US20100197339A1 (en) * 2009-02-03 2010-08-05 Nokia Siemens Networks Oy Uplink Power Control For Multiple Component Carriers
CN102308640A (zh) * 2009-02-09 2012-01-04 交互数字专利控股公司 利用多载波的无线发射/接收单元的上行链路功率控制的装置和方法
CN102821449A (zh) * 2011-06-08 2012-12-12 中兴通讯股份有限公司 一种上行信号发射功率削减的方法和装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4255042A3 (fr) * 2022-03-29 2024-01-03 Beijing Xiaomi Mobile Software Co., Ltd. Procédé et dispositif de commande de puissance montante

Also Published As

Publication number Publication date
CN109803366A (zh) 2019-05-24
CN115996457A (zh) 2023-04-21

Similar Documents

Publication Publication Date Title
CN112544113B (zh) 用于生成mac pdu的方法和用户设备
JP5706449B2 (ja) コンポーネントキャリアの指定
WO2020143057A1 (fr) Procédé et appareil de détermination de schéma d'accès à un canal, dispositif terminal, et dispositif de réseau
WO2018141177A1 (fr) Procédé d'indication de ressources, procédé d'acquisition de ressource et dispositif associé
WO2018059583A1 (fr) Procédé de transmission d'informations, équipement terminal et dispositif réseau
RU2763775C1 (ru) Способ и устройство беспроводной связи
WO2013096043A1 (fr) Procédé et appareil pour admettre une requête d'attribution de ressources de connexion sans fil dans un système de communication
US11129173B2 (en) Method and apparatus for transmitting sidelink feedback information
WO2019214523A1 (fr) Appareil et procédé de communication
EP3398283A1 (fr) Système, procédé, et appareil de sélection de format d'informations de commande de liaison descendante
US8787286B2 (en) Method and apparatus for admitting a request for allocation of wireless connection resources in a communication system
WO2019095977A1 (fr) Procédé et dispositif de communication
WO2021026916A1 (fr) Procédé, appareil, et dispositif de communication
EP3958595A1 (fr) Procédé et appareil de communication
US20230059550A1 (en) Sidelink physical layer priority based procedures
CN111148201B (zh) 数据传输方法和设备
WO2020029229A1 (fr) Procédé et appareil pour indiquer des informations de format de créneau
KR20160056771A (ko) 상향링크 자원 할당 요청 방법 및 장치
WO2022141629A1 (fr) Procédé de détermination de ressources, premier dispositif terminal et second dispositif terminal
US20230057351A1 (en) Sidelink physical layer procedures
EP4030843A1 (fr) Procédé de traitement pour des ressources fragmentées et dispositif de traitement
WO2020087454A1 (fr) Procédé de régulation de puissance et dispositif terminal
WO2024067690A1 (fr) Procédé et dispositif de communication
WO2024099173A1 (fr) Procédé et appareil de communication
US20240098571A1 (en) Transmission latency mitigation for voice over new radio (vonr)

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18878969

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18878969

Country of ref document: EP

Kind code of ref document: A1