WO2019104485A1 - 分配功率的方法和设备 - Google Patents

分配功率的方法和设备 Download PDF

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Publication number
WO2019104485A1
WO2019104485A1 PCT/CN2017/113396 CN2017113396W WO2019104485A1 WO 2019104485 A1 WO2019104485 A1 WO 2019104485A1 CN 2017113396 W CN2017113396 W CN 2017113396W WO 2019104485 A1 WO2019104485 A1 WO 2019104485A1
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WIPO (PCT)
Prior art keywords
carriers
carrier
transmit power
determining
candidate
Prior art date
Application number
PCT/CN2017/113396
Other languages
English (en)
French (fr)
Inventor
唐海
Original Assignee
Oppo广东移动通信有限公司
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 Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2017/113396 priority Critical patent/WO2019104485A1/zh
Priority to US16/338,802 priority patent/US11304211B2/en
Priority to CN201780048081.4A priority patent/CN109565833B/zh
Priority to EP17922915.8A priority patent/EP3518589B1/en
Publication of WO2019104485A1 publication Critical patent/WO2019104485A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • 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
    • H04W52/281—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 taking into account user or data type priority
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • 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
    • H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
    • 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
    • H04W52/38—TPC being performed in particular situations
    • H04W52/383—TPC being performed in particular situations power control in peer-to-peer links
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • Embodiments of the present invention relate to the field of communications and, more particularly, to methods and apparatus for distributing power.
  • the vehicle networking system is a sidelink (SL) transmission technology based on Long Term Evaluation Vehicle to Vehicle (LTE D2D). Compared with the traditional LTE system, communication data is received or transmitted through the base station. Different ways, the vehicle networking system adopts the method of direct communication from the terminal to the terminal, and therefore has higher spectral efficiency and lower transmission delay.
  • SL sidelink
  • LTE D2D Long Term Evaluation Vehicle to Vehicle
  • the terminal can perform uplink data transmission and side-link data transmission, and the terminal performs data transmission on the uplink and the network, in the side chain. Data transmission is performed on the road with other terminals.
  • power allocation is performed according to the priority level of the measurement link service.
  • the network can be configured with a priority threshold (or a pre-configured priority threshold).
  • the terminal guarantees the transmission of the side-line data, discards the uplink transmission, or reduces the uplink transmission.
  • the priority of the side-link service is greater than or equal to the threshold, the terminal guarantees the transmission of the uplink data, discards the side-line data transmission, or reduces the power of the side-line data.
  • the terminal may select one or more of the candidate multiple carriers for data transmission.
  • a method and apparatus for allocating power is provided that can address multiple carrier power allocation problems on a side link of a device.
  • the first aspect provides a method for allocating power, which is applied to a first device, where the first device supports data transmission through N carriers on a side link, including:
  • the first device sends the service on the corresponding carrier to the second device according to the transmit power of each of the N2 carriers.
  • the method for allocating power in the embodiment of the present invention triggers the first device to determine the transmit power of each of the N2 carriers and the N2 carriers in the N carriers by using the N1 carriers whose service priority is less than the threshold.
  • the problem of how to perform power allocation when the first device transmits the side line and the uplink simultaneously in the multi-carrier scenario can be effectively solved.
  • the determining, by the first device, the transmit power of each of the N2 carriers and the N2 carriers in the N carriers including:
  • the first device determines the N2 carriers in a manner that the remaining transmit power of the first device is zero, or until all carriers in the N carriers are added to the available carrier set:
  • the first device determines, in the candidate carrier set, a first carrier with the lowest service priority; if the transmit power of the first carrier is greater than or equal to the remaining transmit power, the first device adds the first carrier to Determining the available carrier, and removing the candidate carrier set by the first carrier, and determining the remaining transmit power as a transmit power of the first carrier, where the remaining power is equal to the maximum transmit power minus Determining a total transmit power of all carriers in the set of available carriers; if the transmit power of the first carrier is less than the remaining transmit power, the first device adds the first carrier to the set of available carriers, and Removing the first carrier from the set of candidate carriers.
  • the method before the determining, by the first device, the N2 carriers, the method further includes:
  • the determining, by the first device, the set of candidate carriers and the set of available carriers includes:
  • the first device determines an empty set as the set of available carriers, and uses the N carriers as the set of candidate carriers.
  • the first device determines the candidate carrier set and the A collection of available carriers, including:
  • the first device determines an empty set as the available carrier set, and determines the N1 carriers as the candidate carrier set.
  • the determining, by the first device, the set of candidate carriers and the set of available carriers includes:
  • the first device determines the N1 carriers as the available carrier set, and divides the N carriers by the N1 carriers.
  • the carrier other than the carrier is determined as the set of candidate carriers.
  • the first device determines, in the candidate carrier set, a first carrier with the lowest service priority, including:
  • the first device determines the first carrier among the multiple second carriers.
  • the determining, by the first device, the first carrier, among the multiple second carriers includes:
  • the first device randomly selects one carrier as the first carrier among the plurality of second carriers.
  • the determining, by the first device, the first carrier, among the multiple second carriers includes:
  • the first device determines the plurality of second carriers as the first carrier.
  • the determining, by the first device, the transmit power of each of the N2 carriers and the N2 carriers in the N carriers including:
  • the first device determines the N1 carriers as the N2 carriers; and the first device determines the N2 carriers according to a proportional coefficient.
  • the transmit power of each carrier, the scale factor including a ratio between transmit power of each of the N2 carriers.
  • the scaling factor is a coefficient configured by a network device, or the scaling factor is a coefficient determined by the first device according to a service priority level of each of the N2 carriers.
  • an apparatus that supports transmitting data over N carriers on a side link, including:
  • the determining unit is configured to:
  • the transceiver unit is configured to send, according to the transmit power of each of the N2 carriers, the service on the corresponding carrier to the second device.
  • an apparatus that supports transmitting data over N carriers on a side link, including:
  • a processor for:
  • a transceiver configured to send, according to a transmit power of each of the N2 carriers, a service on a corresponding carrier to the second device.
  • a computer readable medium for storing a computer program, the computer program comprising instructions for performing the above method embodiments.
  • a fifth aspect provides a computer chip, including: an input interface, an output interface, at least one processor, and a memory, wherein the processor is configured to execute code in the memory, when the code is executed, the processing.
  • a communication system including the above device.
  • FIG. 1 is a schematic block diagram of a transmission mode of an embodiment of the present invention.
  • FIG. 2 is a schematic block diagram of another transmission mode of an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a method for allocating power according to an embodiment of the present invention.
  • FIG. 4 is a schematic block diagram of an apparatus of an embodiment of the present invention.
  • FIG. 5 is a schematic block diagram of another device of an embodiment of the present invention.
  • V2V Vehicle to Vehicle
  • V2X Vehicle to Everything
  • D2D Device to Device
  • the embodiment of the present invention can be applied to: two transmission modes defined by the Vehicle to Everything (V2X) in the 3rd Generation Partnership Project (3GPP) Rel-14. : Mode 3 and Mode 4.
  • V2X Vehicle to Everything
  • 3GPP 3rd Generation Partnership Project
  • Mode 3 and Mode 4 Specifically, in mode 3, as shown in FIG. 1, transmission resources of the in-vehicle terminal (vehicle terminal 121 and in-vehicle terminal 122) are allocated by the base station 110, and the in-vehicle terminal is on the side line according to the resource allocated by the base station 110.
  • the data is transmitted; the base station 110 may allocate a single transmission resource to the terminal, or may allocate a semi-static transmission resource to the terminal.
  • mode 4 as shown in FIG.
  • the in-vehicle terminal (vehicle terminal 131 and in-vehicle terminal 132) adopts a transmission mode of sensing and reservation. Specifically, the in-vehicle terminal acquires a set of available transmission resources in a resource pool by means of interception, and the terminal randomly selects one resource from the set to transmit data.
  • system frame of the vehicle-mounted terminal to the vehicle-mounted terminal shown in FIG. 1 and FIG. 2 is only an example of the embodiment of the present invention, and the embodiment of the present invention is not limited thereto.
  • the terminal device in the embodiment of the present invention may be any device or device configured with a physical layer and a medium access control layer, and the terminal device may also be referred to as an access terminal.
  • UE User Equipment
  • subscriber unit subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user equipment.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless A communication-enabled handheld device, computing device, or other linear processing device connected to a wireless modem, an in-vehicle device, a wearable device, and the like.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • a resource pool with a short transmission time length (short TTI) is introduced on the basis of the traditional long TTI resource pool. That is, in the listening method of the embodiment of the present invention, when the terminal device needs to select a resource, if the resource pool of the short TTI has a resource pool of a long TTI, the terminal device can perform the selective listening resource pool.
  • the terminal can perform uplink data transmission and side-link data transmission, the terminal performs data transmission on the uplink and the network, and performs data transmission on the side link and other terminals, when uplink transmission
  • the power allocation is performed according to the priority level of the measurement link service.
  • the network can be configured with a priority threshold (or a pre-configured priority threshold).
  • the terminal guarantees the transmission of the side-line data, discards the uplink transmission, or reduces the uplink transmission.
  • the terminal guarantees the transmission of the uplink data, discards the side-line data transmission, or reduces the power of the side-line data.
  • the terminal may select one or more of the candidate multiple carriers for data transmission.
  • the mechanism sets a priority threshold. If there is a carrier with a priority lower than the threshold on the side link, the uplink data transmission is discarded.
  • a method for allocating power is proposed, which solves multiple carrier power allocation problems on a side link of the device.
  • the method includes:
  • the first device determines that a service priority level of the N1 carriers in the N carriers is less than a threshold; and the first device determines, in the N carriers, N2 carriers and each carrier in the N2 carriers.
  • the transmit power, N2 ⁇ N the total transmit power of the N2 carriers is less than or equal to the maximum transmit power of the first device; the first device sends the transmit power to each of the N2 carriers to the second device The traffic on the corresponding carrier.
  • N1 and N2 are carriers in N, N1 ⁇ N, N2 ⁇ N.
  • the size of N1 and N2 is not limited in the embodiment of the present invention.
  • N1 can be greater than N2.
  • N1 can be equal to N2.
  • N1 can be less than N2.
  • the method for allocating power in the embodiment of the present invention triggers the first device to determine the transmit power of each of the N2 carriers and the N2 carriers in the N carriers by using the N1 carriers whose service priority is less than the threshold.
  • the problem of how to perform power allocation when the first device transmits the side line and the uplink simultaneously in the multi-carrier scenario can be effectively solved.
  • the service priority level is inversely proportional to the priority of the service. That is, the lower the priority of the service, the higher the priority of the service. For example, eight priority levels 0-7 defined in Rel-14, where priority level 0 indicates the highest priority and 7 indicates the lowest priority.
  • the first device in the embodiment of the present invention may be the in-vehicle terminal 121 or the in-vehicle terminal 122 as shown in FIG. 1 , or may be the in-vehicle terminal 131 and the in-vehicle terminal 132 shown in FIG. 2 , and the embodiment of the present invention does not. Specifically limited.
  • the first device may determine the N2 carriers until the remaining transmit power of the first device is zero, or until all carriers of the N carriers are added to the available carrier set:
  • the first device determines, in the candidate carrier set, a first carrier with the lowest priority of the service; if the transmit power of the first carrier is greater than or equal to the remaining transmit power, the first device adds the first carrier to the available carrier set, And removing the candidate carrier set by the first carrier, and determining the remaining transmit power as a transmit power of the first carrier, the remaining power being equal to the maximum transmit power minus a total transmit power of all carriers in the available carrier set If the transmit power of the first carrier is less than the remaining transmit power, the first device adds the first carrier to the set of available carriers, and removes the first carrier from the set of candidate carriers.
  • the candidate carrier set and the available carrier set are also determined.
  • the first device may determine the null set as the set of available carriers, and use the N carriers as the set of candidate carriers. That is, if the service priority level of the N1 carriers is less than the threshold, the first device may determine the null set as the available carrier set, and determine the N carriers as the candidate carrier set.
  • the first device may determine the N2 carriers according to the following steps:
  • Step 11 N carriers are used as carrier candidate sets; the available carrier sets are empty sets; the remaining power of the first device is the maximum transmit power.
  • Step 12 The first device selects a carrier with the lowest service priority from the set of carrier candidates.
  • Step 13 The first device determines whether the transmit power of the carrier is greater than the remaining power of the first device.
  • the first device transmits the traffic of the carrier with the remaining power; and places the carrier into the set of available carriers.
  • the carrier is removed from the carrier candidate set, and the carrier is placed in the available carrier set, and the first device maximum transmit power is subtracted from the remaining power of the carrier transmit power as the first device. Remaining power, repeat steps 12 and 13 until the remaining power of the first device is zero, or until all carriers in the N carriers are added to the set of available carriers.
  • the first device may determine the N1 carriers as the available carrier set, and include the N carriers except the N1 carriers.
  • the carrier is determined to be the set of candidate carriers. That is, if the service priority of the N1 carriers is less than the threshold, and the total transmit power required by the N1 services is smaller than the total transmit power of the first device, the first device may determine the N1 carriers as the available carrier. And collecting, and determining a carrier other than the N1 carriers among the N carriers as the candidate carrier set.
  • the first device may determine the N2 carriers according to the following steps:
  • Step 20 The first device may determine the N1 carriers as the available carrier set, and use the N3 carriers as a candidate carrier set.
  • Step 21 The first device selects one of the candidate carrier sets from the lowest carrier priority level. Wave, for example, carrier K.
  • Step 22 The first device determines whether the total power on the N1 carriers and the carrier K exceeds the maximum transmit power of the first device.
  • Step 23 If the maximum transmit power of the first device is exceeded:
  • the first device adds the carrier K to the set of available carriers, and removes the carrier K from the set of candidate carriers, and determines the transmit power on the carrier K as:
  • P_1, P_2, ..., P_L are respectively required transmit powers of each carrier in the set of available carriers
  • P is the maximum transmit power of the first device
  • L is the number of carriers in the set of available carriers.
  • the first device can simultaneously transmit data on L carriers and data on carrier K, where L is the number of carriers in the available carrier set, whereby the first device adds carrier K to the available carrier set, and Carrier K is removed from the set of candidate carriers and steps 21, 22 and 23 are repeated until the remaining power of the first device is zero, or until all of the N carriers are added to the set of available carriers.
  • the first device may determine the null set as the available carrier set, and determine the N1 carriers as the candidate carrier set. That is, if the service priority level of the N1 carriers is less than the threshold, and the total transmit power required by the N1 services is greater than or equal to the total transmit power of the first device, the first device may determine the empty set as the available A set of carriers is determined and the N1 carriers are determined as the set of candidate carriers. In other words, the first device needs to preferentially ensure the transmit power of the carrier with the lowest priority of the traffic among the N1 carriers. If there is still power remaining, the carrier with the lower priority is selected from the remaining carriers for transmission.
  • the method for the first device to determine the N2 carrier on the N1 carriers is similar to the foregoing steps 12 and 13 (or the foregoing steps 21, 22, and 23). To avoid repetition, details are not described herein again.
  • the first device determines, in the candidate carrier set, the first carrier with the lowest service priority, if the carrier has M carriers in the process of carrier selection
  • the priority levels are the same and can be processed as follows:
  • the first device determines the first carrier in the plurality of second carriers.
  • the first device may randomly select one carrier as the first carrier among the plurality of second carriers.
  • the first device may determine the plurality of second carriers as the first carrier. Further, the transmit power of each of the plurality of second carriers may be the same or different. For example, when the total transmit power of the multiple second carriers is greater than the remaining transmit power of the first device, the transmit power of each of the plurality of second carriers may be determined according to a proportional coefficient, and the multiple second carriers It is also possible to equally divide the remaining transmission power.
  • the transmit power of each of the plurality of second carriers is:
  • M is the number of the plurality of second carriers
  • P_1, P_2, ..., P_L are respectively required transmit powers of each carrier in the set of available carriers
  • P is the maximum transmit power of the first device
  • L is a set of available carriers The number of carriers in the middle.
  • the first device determines the N1 carriers as the N2 carriers; the first device may determine the N2 according to a scaling factor.
  • the transmit power of each carrier in the carrier, the scale factor including the ratio between the transmit power of each of the N2 carriers.
  • the first device determines whether the total transmit power required on the N1 carriers whose priority level is lower than the threshold is smaller than the maximum transmit power of the first device, if the total transmit power required on the N1 carriers is greater than the maximum transmit of the first device. For power, the first device configures a power allocation factor for N1 carriers and transmits data on N1 carriers with corresponding power.
  • the first device configures the scale coefficients for the N1 carriers to be X_1, X_2, . . . X_N1, respectively.
  • the scaling factor is a coefficient configured by the network device.
  • the scale factor may also be autonomously selected by the terminal.
  • the scaling factor is a coefficient determined by the first device according to a service priority level of each of the N2 carriers. For example, the lower the priority level, the higher the corresponding scale factor.
  • FIG. 4 is a schematic block diagram of a first device according to an embodiment of the present invention, and it should be understood that the device supports Data is transmitted over N carriers on the side-by-side link.
  • the device 300 includes:
  • the determining unit 310 is configured to:
  • a service priority level of the N1 carriers in the N carriers is less than a threshold value; determining, in the N carriers, a transmit power of each of the N2 carriers and the N2 carriers, and a total transmit power of the N2 carriers Less than or equal to the maximum transmit power of the device;
  • the transceiver unit 320 is configured to send, according to the transmit power of each of the N2 carriers, the service on the corresponding carrier to the second device.
  • the determining unit 310 is specifically configured to:
  • the N2 carriers are determined in the following manner until the remaining transmit power of the device is zero, or until all carriers of the N carriers are added to the available carrier set:
  • the determining unit 310 is further configured to determine the candidate carrier set and the available carrier set before determining the N2 carriers in the following manner.
  • the determining unit 310 is specifically configured to: determine an empty set as the available carrier set, and use the N carriers as the candidate carrier set.
  • the determining unit 310 is specifically configured to: if the total transmit power of the N1 carriers is greater than or equal to the maximum transmit power, determine an empty set as the available carrier set, and determine the N1 carriers as the candidate carrier. set.
  • the determining unit 310 is specifically configured to: if the total transmit power of the N1 carriers is less than the maximum transmit power, determine the N1 carriers as the available carrier set, and divide the N carriers by the N1 A carrier other than the carrier is determined as the set of candidate carriers.
  • the determining unit 310 is specifically configured to: if the carrier with the lowest priority of the service in the candidate carrier set includes multiple second carriers, determine the first carrier in the multiple second carriers.
  • the determining unit 310 is further configured to: randomly select one carrier as the first carrier among the plurality of second carriers.
  • the determining unit 310 is further configured to: determine the multiple second carriers as the first carrier.
  • the determining unit 310 is specifically configured to: if the total transmit power of the N1 carriers is greater than the maximum transmit power, determine the N1 carriers as the N2 carriers; and determine each of the N2 carriers according to a scaling factor.
  • the transmit power of the carrier, the scale factor including the ratio between the transmit power of each of the N2 carriers.
  • the scaling factor is a coefficient configured by the network device, or the scaling factor is a coefficient determined by the device according to a service priority level of each carrier of the N2 carriers.
  • the processing unit 310 can be implemented by a processor, and the transceiving unit 320 can be implemented by a transceiver.
  • device 400 can include a processor 410, a transceiver 420, and a memory 430.
  • the memory 430 can be used to store indication information, and can also be used to store code, instructions, and the like executed by the processor 410.
  • the various components in device 400 are connected by a bus system, wherein the bus system includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • the device 400 shown in FIG. 5 can implement the various processes implemented by the first device in the foregoing method embodiments shown in FIG. 1 to FIG. 3, and details are not described herein again.
  • each step of the method embodiment in the embodiment of the present invention may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software. More specifically, the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
  • the processor may be an integrated circuit chip with signal processing capability, and the methods, steps, and logic blocks disclosed in the embodiments of the present invention may be implemented or executed.
  • the above processor may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or Other programmable logic devices, transistor logic devices, discrete hardware components, and the like.
  • the general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read only Read-only memory (ROM), programmable read only memory (ROMM), erasable programmable read only memory (erasable PROM, EPROM), electrically erasable programmable read only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory can be a random access memory (RAM) that acts as an external cache.
  • the memory in the embodiment of the present invention may also be a static random access memory (SRAM), a dynamic random access memory (DRAM), or a dynamic random access memory (DRAM).
  • SDRAM Synchronous dynamic random access memory
  • DDR double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous connection Synchro link DRAM
  • DR RAM direct memory bus
  • the words “at time” as used herein may be interpreted as “if” or “if” or “when” or “in response to determining” or “in response to detecting” ".
  • the phrase “if determined” or “if detected (conditions or events stated)” may be interpreted as “when determined” or “in response to determination” or “when detected (stated condition or event) "Time” or “in response to a test (condition or event stated)”.
  • the disclosed systems, devices, and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
  • each functional unit in the embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product stored in a storage medium.
  • the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method of the embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory, a random access memory, a magnetic disk, or an optical disk.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

提供了一种分配功率的方法和设备。该方法应用于第一设备，该第一设备支持通过侧行链路上的N个载波传输数据，该方法包括：确定该N个载波中N1个载波的业务优先等级小于门限值；在该N个载波中，确定N2个载波以及该N2个载波中每个载波的发射功率，该N2个载波的总发射功率小于或等于该第一设备的最大发射功率；按照该N2个载波中每个载波的发射功率，向第二设备发送相应载波上的业务。本发明实施例中通过业务优先等级小于门限值的N1个载波，触发第一设备在N个载波中，确定N2个载波以及该N2个载波中每个载波的发射功率，能够有效解决第一设备在多载波场景下侧行链路和上行链路同时发送的时候如何进行功率分配的问题。

Description

分配功率的方法和设备 技术领域
本发明实施例涉及通信领域，并且更具体地，涉及分配功率的方法和设备。
背景技术
车联网系统是基于长期演进车辆到车辆(Long Term Evaluation Vehicle to Vehicle，LTE D2D)的一种侧行链路(Sidelink,SL)传输技术，与传统的LTE系统中通信数据通过基站接收或者发送的方式不同，车联网系统采用终端到终端直接通信的方式，因此，具有更高的频谱效率以及更低的传输时延。
在第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)Rel-14中，终端可以进行上行数据传输和侧行链路数据传输，终端在上行链路上和网络进行数据传输，在侧行链路上和其他终端进行数据传输，当上行传输和侧行链路传输在时间上交叠时，根据测量链路业务的优先等级进行功率分配。网络可以配置一个优先等级的门限(也可以是预配置的优先等级门限)，当侧行链路数据的优先等级小于该门限时，终端会保证侧行数据的传输，丢弃上行传输或者降低上行传输的功率；当侧行链路业务的优先等级大于等于该门限时，终端会保证上行数据的传输，丢弃侧行数据传输或者降低侧行数据的功率。
然而，在Rel-15中支持侧行链路多载波传输，终端可以从候选的多个载波中选取一个或者多个进行数据传输。
可以发现，当多个侧行链路数据传输和上行数据传输在时间上有交叠时，并且数据传输的总功率超过终端的最大发射功率，如何进行功率分配是需要解决的问题。
发明内容
提供了一种分配功率的方法和设备，能够解决设备的侧行链路上的多个载波功率分配问题。
第一方面，提供了一种分配功率的方法，应用于第一设备，所述第一设备支持通过侧行链路上的N个载波传输数据，包括：
所述第一设备确定所述N个载波中N1个载波的业务优先等级小于门限值；
所述第一设备在所述N个载波中，确定N2个载波以及所述N2个载波中每个载波的发射功率，所述N2个载波的总发射功率小于或等于所述第一设备的最大发射功率；
所述第一设备按照所述N2个载波中每个载波的发射功率，向第二设备发送相应载波上的业务。
本发明实施例中的分配功率的方法，通过业务优先等级小于门限值的N1个载波，触发第一设备在N个载波中，确定N2个载波以及该N2个载波中每个载波的发射功率，能够有效解决第一设备在多载波场景下侧行链路和上行链路同时发送的时候如何进行功率分配的问题。
在一些可能的实现方式中，所述第一设备在所述N个载波中，确定N2个载波以及所述N2个载波中每个载波的发射功率，包括：
所述第一设备按照以下方式确定所述N2个载波，直至所述第一设备的剩余发射功率为零，或者，直至所述N个载波中的所有载波添加至可用载波集合中：
所述第一设备在候选载波集合中，确定业务优先等级最低的第一载波；若所述第一载波的发射功率大于或等于剩余发射功率，所述第一设备将所述第一载波添加至所述可用载波集合，并将所述第一载波移除所述候选载波集合，并将所述剩余发射功率确定为所述第一载波的发射功率，所述剩余功率等于所述最大发射功率减去所述可用载波集合中所有载波的总发射功率；若所述第一载波的发射功率小于所述剩余发射功率，所述第一设备将所述第一载波添加至所述可用载波集合，并将所述第一载波移除所述候选载波集合。
在一些可能的实现方式中，所述第一设备按照以下方式确定所述N2个载波之前，所述方法还包括：
所述第一设备确定所述候选载波集合和所述可用载波集合；
在一些可能的实现方式中，所述第一设备确定所述候选载波集合和所述可用载波集合，包括：
所述第一设备将空集确定为所述可用载波集合，并将所述N个载波作为所述候选载波集合。
在一些可能的实现方式中，所述第一设备确定所述候选载波集合和所述 可用载波集合，包括：
若所述N1个载波的总发射功率大于或者等于所述最大发射功率，所述第一设备将空集确定为所述可用载波集合，并将所述N1个载波确定为所述候选载波集合。
在一些可能的实现方式中，所述第一设备确定所述候选载波集合和所述可用载波集合，包括：
若所述N1个载波的总发射功率小于所述最大发射功率，所述第一设备将所述N1个载波确定为所述可用载波集合，并将所述N个载波中除所述N1个载波之外的载波确定为所述候选载波集合。
在一些可能的实现方式中，所述第一设备在所述候选载波集合中，确定业务优先等级最低的第一载波，包括：
若所述候选载波集合中业务优先等级最低的载波包括多个第二载波，所述第一设备在所述多个第二载波中，确定所述第一载波。
在一些可能的实现方式中，所述第一设备在所述多个第二载波中，确定所述第一载波，包括：
所述第一设备在所述多个第二载波中，随机选择一个载波作为所述第一载波。
在一些可能的实现方式中，所述第一设备在所述多个第二载波中，确定所述第一载波，包括：
所述第一设备将所述多个第二载波确定为所述第一载波。
在一些可能的实现方式中，所述第一设备在所述N个载波中，确定N2个载波以及所述N2个载波中每个载波的发射功率，包括：
若所述N1个载波的总发射功率大于所述最大发射功率，所述第一设备将所述N1个载波确定为所述N2个载波；所述第一设备根据比例系数确定所述N2个载波中每个载波的发射功率，所述比例系数包括所述N2个载波中每个载波的发射功率之间的比例。
在一些可能的实现方式中，所述比例系数为网络设备配置的系数，或者所述比例系数为所述第一设备根据所述N2个载波中每个载波的业务优先等级确定的系数。
第二方面，提供了一种设备，所述设备支持通过侧行链路上的N个载波传输数据，包括：
确定单元，所述确定单元用于：
确定所述N个载波中N1个载波的业务优先等级小于门限值；
在所述N个载波中，确定N2个载波以及所述N2个载波中每个载波的发射功率，所述N2个载波的总发射功率小于或等于所述设备的最大发射功率；
收发单元，用于按照所述N2个载波中每个载波的发射功率，向第二设备发送相应载波上的业务。
第三方面，提供了一种设备，所述设备支持通过侧行链路上的N个载波传输数据，包括：
处理器，所述处理器用于：
确定所述N个载波中N1个载波的业务优先等级小于门限值；
在所述N个载波中，确定N2个载波以及所述N2个载波中每个载波的发射功率，所述N2个载波的总发射功率小于或等于所述设备的最大发射功率；
收发器，用于按照所述N2个载波中每个载波的发射功率，向第二设备发送相应载波上的业务。
第四方面，提供了一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于执行上述方法实施例的指令。
第五方面，提供了一种计算机芯片，包括：输入接口、输出接口、至少一个处理器、存储器，所述处理器用于执行所述存储器中的代码，当所述代码被执行时，所述处理器可以实现上述方法实施例中由第一设备执行的各个过程。
第六方面，提供了一种通信系统，包括上述设备。
附图说明
图1是本发明实施例的传输模式的示意性框架图。
图2是本发明实施例的另一传输模式的示意性框架图。
图3是本发明实施例的分配功率的方法的示意性流程图。
图4是本发明实施例的设备的示意性框图。
图5是本发明实施例的另一设备的示意性框图。
具体实施方式
下面将结合附图，对本发明实施例中的技术方案进行描述。
本发明实施例可以适用于任何终端设备到终端设备的通信框架。例如，车辆到车辆(Vehicle to Vehicle，V2V)、车辆到其他设备(Vehicle to Everything，V2X)、终端到终端(Device to Device，D2D)等。
例如，本发明实施例可以适用于：第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)Rel-14中，对车联网技术车辆到其他设备(Vehicle to Everything，V2X)定义的两种传输模式：模式3和模式4。具体而言，在模式3中，如图1所示，车载终端(车载终端121和车载终端122)的传输资源是由基站110分配的，车载终端根据基站110分配的资源在侧行链路上进行数据的发送；基站110可以为终端分配单次传输的资源，也可以为终端分配半静态传输的资源。在模式4中，如图2所示，车载终端(车载终端131和车载终端132)采用侦听(sensing)加预留(reservation)的传输方式。具体而言，车载终端在资源池中通过侦听的方式获取可用的传输资源集合，终端从该集合中随机选取一个资源进行数据的传输。
应理解，图1和图2所示的车载终端到车载终端的系统框架仅仅是本发明实施例的一个示例，本发明实施例不限于此。
还应理解，本发明实施例中的终端设备可以是任何配置有物理层和媒体接入控制层的设备或装置，终端设备也可称为接入终端。例如，用户设备(User Equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字线性处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它线性处理设备、车载设备、可穿戴设备等等。本发明实施例以车载终端为例进行说明，但并不限于此。
本发明实施例中，终端设备在侦听资源池时，在传统的长传输时间长度(long TTI)的资源池的基础上，引入了短传输时间长度(short TTI)的资源池。也就是说，本发明实施例的侦听方法，终端设备需要选择资源时，如果既有short TTI的资源池又有long TTI的资源池，该终端设备可以进行选择性侦听资源池。
然而，在Rel-14中，终端可以进行上行数据传输和侧行链路数据传输，终端在上行链路上和网络进行数据传输，在侧行链路上和其他终端进行数据传输，当上行传输和侧行链路传输在时间上交叠时，根据测量链路业务的优先等级进行功率分配。网络可以配置一个优先等级的门限(也可以是预配置的优先等级门限)，当侧行链路数据的优先等级小于该门限时，终端会保证侧行数据的传输，丢弃上行传输或者降低上行传输的功率；当侧行链路业务的优先等级大于等于该门限时，终端会保证上行数据的传输，丢弃侧行数据传输或者降低侧行数据的功率。
但是，在Rel-15中支持侧行链路多载波传输，终端可以从候选的多个载波中选取一个或者多个进行数据传输。
可以发现，假设有N个同时待传输的侧行业务，N1个业务的优先等级小于该门限，N3个业务的优先等级大于或等于该门限，N＝N1+N3；如果继续沿用Rel-14的机制，设定一个优先等级门限，如果侧行链路上存在优先等级低于该门限的载波就丢弃上行数据传输，至少会存在如下两个问题：
1.如果有N1个侧行链路的业务优先等级都小于该门限，但是这N1个侧行链路业务所需要的总发射功率超过终端的最大发射功率，在这些业务之间如何进行功率分配？
2.如果有N1个侧行链路的业务优先等级都小于该门限，但是这N1个侧行链路业务所需要的总发射功率小于终端的最大发射功率，如果只传输这N1个侧行链路的业务数据，并不能充分利用终端的最大发射功率，也会导致资源浪费。
即，当多个侧行链路数据传输和上行数据传输在时间上有交叠时，并且数据传输的总功率超过终端的最大发射功率，如何进行功率分配是需要解决的问题。
为了解决上述问题，本发明实施例中提出了一种分配功率的方法，该方法解决设备的侧行链路上的多个载波功率分配问题。
具体的，如图3所示，该方法包括：
210、确定该N个载波中N1个载波的业务优先等级小于门限值。
220、在该N个载波中，确定N2个载波以及该N2个载波中每个载波的发射功率。
230、按照该N2个载波中每个载波的发射功率，向第二设备发送相应载 波上的业务。
具体而言，该第一设备确定该N个载波中N1个载波的业务优先等级小于门限值；该第一设备在该N个载波中，确定N2个载波以及该N2个载波中每个载波的发射功率，N2≤N，该N2个载波的总发射功率小于或等于该第一设备的最大发射功率；该第一设备按照该N2个载波中每个载波的发射功率，向第二设备发送相应载波上的业务。
本发明实施例中，由于N1和N2都是N中的载波，因此，N1≤N，N2≤N。但本发明实施例对N1和N2的大小不做限定。例如，N1可以大于N2。又例如，N1可以等于N2。又例如，N1可以小于N2。
本发明实施例中的分配功率的方法，通过业务优先等级小于门限值的N1个载波，触发第一设备在N个载波中，确定N2个载波以及该N2个载波中每个载波的发射功率，能够有效解决第一设备在多载波场景下侧行链路和上行链路同时发送的时候如何进行功率分配的问题。
需要说明的是：本发明实施例中，业务优先等级和业务的优先级成反比。即，业务优先等级越低表示业务的优先级越高。例如，Rel-14中定义的8个优先等级0-7，其中，优先等级0表示优先级最高，7表示优先级最低。
应理解，本发明实施例中的第一设备可以是如图1所示的车载终端121或者车载终端122，也可以是图2所示的车载终端131和车载终端132，本发明实施例不做具体限定。
下面对该第一设备在该N个载波中，确定N2个载波以及该N2个载波中每个载波的发射功率的实现方式进行示例性说明：
在一个实施例中，该第一设备可以按照以下方式确定该N2个载波，直至该第一设备的剩余发射功率为零，或者直至该N个载波中所有的载波都添加至可用载波集合中：
该第一设备在候选载波集合中，确定业务优先等级最低的第一载波；若该第一载波的发射功率大于或等于剩余发射功率，该第一设备将该第一载波添加至可用载波集合，并将该第一载波移除该候选载波集合，并将该剩余发射功率确定为该第一载波的发射功率，该剩余功率等于该最大发射功率减去该可用载波集合中所有载波的总发射功率；若该第一载波的发射功率小于该剩余发射功率，该第一设备将该第一载波添加至该可用载波集合，并将该第一载波移除该候选载波集合。
进一步地，该第一设备按照以下方式确定该N2个载波之前，还需要确定该候选载波集合和该可用载波集合。
例如，该第一设备可以将空集确定为该可用载波集合，并将该N个载波作为该候选载波集合。即，如果有N1个载波的业务优先等级都小于门限，该第一设备可以将空集确定为该可用载波集合，并将该N个载波确定为该候选载波集合。
具体而言，该第一设备可以按照以下步骤确定该N2个载波：
步骤11：将N个载波作为载波候选集合；可用载波集合为空集；第一设备的剩余功率为最大发射功率。
步骤12：第一设备从载波候选集合中选取业务优先等级最低的载波。
步骤13：第一设备判断该载波的发射功率是否大于第一设备的剩余功率。
如果大于或者等于剩余功率，第一设备以剩余功率发送该载波的业务；并且将该载波放到可用载波集合中。
如果小于最大发射功率，将该载波从载波候选集合中移除，并且将该载波放到可用载波集合中，并且将第一设备最大发射功率减去该载波发射功率的剩余功率作为该第一设备的剩余功率，重复步骤12和步骤13，直到第一设备的剩余功率为零，或者直到该N个载波中所有的载波都添加至可用载波集合中为止。
又例如，若该N1个载波的总发射功率小于该最大发射功率，该第一设备可以将该N1个载波确定为该可用载波集合，并将该N个载波中除该N1个载波之外的载波确定为该候选载波集合。即，如果有N1个载波的业务优先等级都小于门限，并且这N1个业务所需的总发射功率小于第一设备的总发射功率，该第一设备可以将该N1个载波确定为该可用载波集合，并将该N个载波中除该N1个载波之外的载波确定为该候选载波集合。
具体而言，假设有N个同时待传输的侧行业务，N1个业务的优先等级小于该门限，N3个业务的优先等级大于或等于该门限，N＝N1+N3。该第一设备可以按照以下步骤确定该N2个载波：
步骤20：第一设备可以将该N1个载波确定为该可用载波集合，并将该N3个载波作为候选载波集合。
步骤21：第一设备从候选载波集合中，选取业务优先等级最低的一个载 波，例如，载波K。
步骤22：第一设备判断N1个载波和载波K上的总功率是否超过第一设备的最大发射功率。
步骤23：如果超过第一设备的最大发射功率：
如果超过第一设备的最大发射功率，则第一设备将载波K添加至可用载波集合，并将载波K从候选载波集合中移除，并将载波K上的发射功率确定为：
Figure PCTCN2017113396-appb-000001
其中，P_1,P_2,…P_L分别为可用载波集合中每个载波所需的发射功率,P为该第一设备的最大发射功率，L为可用载波集合中载波的数量。
如果没有超过第一设备的最大发射功率。则说明该第一设备可以同时发送L个载波上的数据和载波K上的数据，L为可用载波集合中载波的数量，由此，该第一设备将载波K添加至可用载波集合，并将载波K从候选载波集合中移除，并重复步骤21、步骤22和步骤23，直到第一设备的剩余功率为零，或者直到该N个载波中所有的载波都添加至可用载波集合中为止。
又例如，若该N1个载波的总发射功率大于或者等于该最大发射功率，该第一设备可以将空集确定为该可用载波集合，并将该N1个载波确定为该候选载波集合。即，如果有N1个载波的业务优先等级都小于门限，并且这N1个业务所需的总发射功率大于或者等于第一设备的总发射功率，则该第一设备可以将空集确定为该可用载波集合，并将该N1个载波确定为该候选载波集合。换句话说，该第一设备需要优先保证N1个载波中业务优先等级最低的载波的发射功率，如果还有功率剩余，再从剩余的载波中选取优先等级较低的载波进行发射，如此循环，直到选取的载波上的总发射功率等于第一设备的最大发射功率。更具体地，该第一设备在该N1个载波确定该N2载波的方法与上述步骤12和步骤13(或者上述步骤21、步骤22和步骤23)类似，为避免重复，此处不再赘述。
需要注意的是：上述实施例中，第一设备该第一设备在该候选载波集合中，确定业务优先等级最低的第一载波时，如果在载波选取的过程中，如果有M个载波的业务优先等级相同，可以按照以下方式进行处理：
例如，假设该候选载波集合中业务优先等级最低的载波包括多个第二载 波，该第一设备在该多个第二载波中，确定该第一载波。
作为示例而非限定性地，该第一设备可以在该多个第二载波中，随机选择一个载波作为该第一载波。
作为示例而非限定性地，该第一设备可以将该多个第二载波确定为该第一载波。进一步地，该多个第二载波中每个第二载波的发射功率可以相同，也可以不同。例如，该多个第二载波的总发射功率大于该第一设备的剩余发射功率时，该多个第二载波中每个第二载波的发射功率可以按照比例系数确定，该多个第二载波也可以平分该剩余发射功率。
例如，该多个第二载波中每个第二载波的发射功率为：
Figure PCTCN2017113396-appb-000002
其中，M为该多个第二载波的数量，P_1,P_2,…P_L分别为可用载波集合中每个载波所需的发射功率,P为该第一设备的最大发射功率，L为可用载波集合中载波的数量。
在另一个实施例中，若该N1个载波的总发射功率大于该最大发射功率，该第一设备将该N1个载波确定为该N2个载波；该第一设备可以根据比例系数确定该N2个载波中每个载波的发射功率，该比例系数包括该N2个载波中每个载波的发射功率之间的比例。
具体地，该第一设备判断优先等级低于门限的N1个载波上所需的总发射功率是否小于第一设备最大发射功率，如果N1个载波上所需的总发射功率大于第一设备最大发射功率，则该第一设备为N1个载波配置功率分配因子，并且以相应的功率发射N1个载波上的数据。
例如，该第一设备为N1个载波分别配置比例系数依次为X_1,X_2,…X_N1，使得
Figure PCTCN2017113396-appb-000003
进一步地，该比例系数为网络设备配置的系数。
应理解，本发明实施例对该比例系数的获取方式不做具体限定。
例如，该比例系数还可以是终端自主选取。例如，该比例系数为该第一设备根据该N2个载波中每个载波的业务优先等级确定的系数。例如，优先等级越低，其对应的比例系数越高。
图4是本发明实施例的第一设备的示意性框图，应理解，该设备支持通 过侧行链路上的N个载波传输数据。
具体地，如图4所示，该设备300包括：
确定单元310，上述确定单元310用于：
确定该N个载波中N1个载波的业务优先等级小于门限值；在该N个载波中，确定N2个载波以及该N2个载波中每个载波的发射功率，该N2个载波的总发射功率小于或等于该设备的最大发射功率；
收发单元320，用于按照该N2个载波中每个载波的发射功率，向第二设备发送相应载波上的业务。
可选地，上述确定单元310具体用于：
按照以下方式确定该N2个载波，直至该设备的剩余发射功率为零，或者，直至该N个载波中的所有载波添加至可用载波集合中：
在候选载波集合中，确定业务优先等级最低的第一载波；若该第一载波的发射功率大于或等于剩余发射功率，将该第一载波添加至该可用载波集合，并将该第一载波移除该候选载波集合，并将该剩余发射功率确定为该第一载波的发射功率，该剩余功率等于该最大发射功率减去该可用载波集合中所有载波的总发射功率；若该第一载波的发射功率小于该剩余发射功率，将该第一载波添加至该可用载波集合，并将该第一载波移除该候选载波集合。
可选地，上述确定单元310还用于：按照以下方式确定该N2个载波之前，该设备确定该候选载波集合和该可用载波集合。
可选地，上述确定单元310具体用于：将空集确定为该可用载波集合，并将该N个载波作为该候选载波集合。
可选地，上述确定单元310具体用于：若该N1个载波的总发射功率大于或者等于该最大发射功率，将空集确定为该可用载波集合，并将该N1个载波确定为该候选载波集合。
可选地，上述确定单元310具体用于：若该N1个载波的总发射功率小于该最大发射功率，将该N1个载波确定为该可用载波集合，并将该N个载波中除该N1个载波之外的载波确定为该候选载波集合。
可选地，上述确定单元310具体用于：若该候选载波集合中业务优先等级最低的载波包括多个第二载波，在该多个第二载波中，确定该第一载波。
可选地，上述确定单元310更具体用于：在该多个第二载波中，随机选择一个载波作为该第一载波。
可选地，上述确定单元310更具体用于：将该多个第二载波确定为该第一载波。
可选地，上述确定单元310具体用于：若该N1个载波的总发射功率大于该最大发射功率，将该N1个载波确定为该N2个载波；根据比例系数确定该N2个载波中每个载波的发射功率，该比例系数包括该N2个载波中每个载波的发射功率之间的比例。
可选地，该比例系数为网络设备配置的系数，或者该比例系数为该设备根据该N2个载波中每个载波的业务优先等级确定的系数。
应注意，处理单元310可以由处理器实现，收发单元320可由收发器实现。如图5所示，设备400可以包括处理器410、收发器420和存储器430。其中，存储器430可以用于存储指示信息，还可以用于存储处理器410执行的代码、指令等。设备400中的各个组件通过总线系统相连，其中，总线系统除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。
图5所示的设备400能够实现前述图1至图3所示的方法实施例中由第一设备所实现的各个过程，为避免重复，这里不再赘述。
在实现过程中，本发明实施例中的方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。更具体地，结合本发明实施例公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域的成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
其中，处理器可能是一种集成电路芯片，具有信号的处理能力，可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。例如，上述的处理器可以是通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、分立硬件组件等等。此外，通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
此外，本发明实施例中，存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读 存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。应理解，上述存储器为示例性但不是限制性说明，例如，本发明实施例中的存储器还可以是静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synch link DRAM，SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)等等。也就是说，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
最后，需要注意的是，在本发明实施例和所附权利要求书中使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本发明实施例。
例如，在本发明实施例和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
又例如，取决于语境，如在此所使用的词语“在……时”可以被解释成为“如果”或“若”或“当……时”或“响应于确定”或“响应于检测”。类似地，取决于语境，短语“如果确定”或“如果检测(陈述的条件或事件)”可以被解释成为“当确定时”或“响应于确定”或“当检测(陈述的条件或事件)时”或“响应于检测(陈述的条件或事件)”。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明实施例的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请提供的几个实施例中，应该理解到，所揭露的系统、装置和方 法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如，多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本发明实施例的目的。
另外，在本发明实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器、随机存取存储器、磁碟或者光盘等各种可以存储程序代码的介质。
以上内容，仅为本发明实施例的具体实施方式，但本发明实施例的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明实施例揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明实施例的保护范围之内。因此，本发明实施例的保护范围应以权利要求的保护范围为准。

Claims (22)

  1. 一种分配功率的方法，其特征在于，应用于第一设备，所述第一设备支持通过侧行链路上的N个载波传输数据，包括：
    所述第一设备确定所述N个载波中N1个载波的业务优先等级小于门限值；
    所述第一设备在所述N个载波中，确定N2个载波以及所述N2个载波中每个载波的发射功率，所述N2个载波的总发射功率小于或等于所述第一设备的最大发射功率；
    所述第一设备按照所述N2个载波中每个载波的发射功率，向第二设备发送相应载波上的业务。
  2. 根据权利要求1所述的方法，其特征在于，所述第一设备在所述N个载波中，确定N2个载波以及所述N2个载波中每个载波的发射功率，包括：
    所述第一设备按照以下方式确定所述N2个载波，直至所述第一设备的剩余发射功率为零，或者，直至所述N个载波中的所有载波添加至可用载波集合中：
    所述第一设备在候选载波集合中，确定业务优先等级最低的第一载波；
    若所述第一载波的发射功率大于或等于剩余发射功率，所述第一设备将所述第一载波添加至所述可用载波集合，并将所述第一载波移除所述候选载波集合，并将所述剩余发射功率确定为所述第一载波的发射功率，所述剩余功率等于所述最大发射功率减去所述可用载波集合中所有载波的总发射功率；
    若所述第一载波的发射功率小于所述剩余发射功率，所述第一设备将所述第一载波添加至所述可用载波集合，并将所述第一载波移除所述候选载波集合。
  3. 根据权利要求2所述的方法，其特征在于，所述第一设备按照以下方式确定所述N2个载波之前，所述方法还包括：
    所述第一设备确定所述候选载波集合和所述可用载波集合。
  4. 根据权利要求3所述的方法，其特征在于，所述第一设备确定所述候选载波集合和所述可用载波集合，包括：
    所述第一设备将空集确定为所述可用载波集合，并将所述N个载波作为所述候选载波集合。
  5. 根据权利要求3所述的方法，其特征在于，所述第一设备确定所述候选载波集合和所述可用载波集合，包括：
    若所述N1个载波的总发射功率大于或者等于所述最大发射功率，所述第一设备将空集确定为所述可用载波集合，并将所述N1个载波确定为所述候选载波集合。
  6. 根据权利要求3所述的方法，其特征在于，所述第一设备确定所述候选载波集合和所述可用载波集合，包括：
    若所述N1个载波的总发射功率小于所述最大发射功率，所述第一设备将所述N1个载波确定为所述可用载波集合，并将所述N个载波中除所述N1个载波之外的载波确定为所述候选载波集合。
  7. 根据权利要求2至6中任一项所述的方法，其特征在于，所述第一设备在所述候选载波集合中，确定业务优先等级最低的第一载波，包括：
    若所述候选载波集合中业务优先等级最低的载波包括多个第二载波，所述第一设备在所述多个第二载波中，确定所述第一载波。
  8. 根据权利要求7所述的方法，其特征在于，所述第一设备在所述多个第二载波中，确定所述第一载波，包括：
    所述第一设备在所述多个第二载波中，随机选择一个载波作为所述第一载波。
  9. 根据权利要求7所述的方法，其特征在于，所述第一设备在所述多个第二载波中，确定所述第一载波，包括：
    所述第一设备将所述多个第二载波确定为所述第一载波。
  10. 根据权利要求1所述的方法，其特征在于，所述第一设备在所述N个载波中，确定N2个载波以及所述N2个载波中每个载波的发射功率，包括：
    若所述N1个载波的总发射功率大于所述最大发射功率，所述第一设备将所述N1个载波确定为所述N2个载波；
    所述第一设备根据比例系数确定所述N2个载波中每个载波的发射功率，所述比例系数包括所述N2个载波中每个载波的发射功率之间的比例。
  11. 根据权利要求10所述的方法，其特征在于，所述比例系数为网络设 备配置的系数，或者所述比例系数为所述第一设备根据所述N2个载波中每个载波的业务优先等级确定的系数。
  12. 一种设备，其特征在于，所述设备支持通过侧行链路上的N个载波传输数据，包括：
    确定单元，所述确定单元用于：
    确定所述N个载波中N1个载波的业务优先等级小于门限值；
    在所述N个载波中，确定N2个载波以及所述N2个载波中每个载波的发射功率，所述N2个载波的总发射功率小于或等于所述设备的最大发射功率；
    收发单元，用于按照所述N2个载波中每个载波的发射功率，向第二设备发送相应载波上的业务。
  13. 根据权利要求12所述的设备，其特征在于，所述确定单元具体用于：
    按照以下方式确定所述N2个载波，直至所述设备的剩余发射功率为零，或者，直至所述N个载波中的所有载波添加至可用载波集合中：
    在候选载波集合中，确定业务优先等级最低的第一载波；
    若所述第一载波的发射功率大于或等于剩余发射功率，将所述第一载波添加至所述可用载波集合，并将所述第一载波移除所述候选载波集合，并将所述剩余发射功率确定为所述第一载波的发射功率，所述剩余功率等于所述最大发射功率减去所述可用载波集合中所有载波的总发射功率；
    若所述第一载波的发射功率小于所述剩余发射功率，将所述第一载波添加至所述可用载波集合，并将所述第一载波移除所述候选载波集合。
  14. 根据权利要求13所述的设备，其特征在于，所述确定单元还用于：
    按照以下方式确定所述N2个载波之前，所述设备确定所述候选载波集合和所述可用载波集合。
  15. 根据权利要求14所述的设备，其特征在于，所述确定单元具体用于：
    将空集确定为所述可用载波集合，并将所述N个载波作为所述候选载波集合。
  16. 根据权利要求14所述的设备，其特征在于，所述确定单元具体用于：
    若所述N1个载波的总发射功率大于或者等于所述最大发射功率，将空集确定为所述可用载波集合，并将所述N1个载波确定为所述候选载波集合。
  17. 根据权利要求14所述的设备，其特征在于，所述确定单元具体用于：
    若所述N1个载波的总发射功率小于所述最大发射功率，将所述N1个载波确定为所述可用载波集合，并将所述N个载波中除所述N1个载波之外的载波确定为所述候选载波集合。
  18. 根据权利要求13至17中任一项所述的设备，其特征在于，所述确定单元具体用于：
    若所述候选载波集合中业务优先等级最低的载波包括多个第二载波，在所述多个第二载波中，确定所述第一载波。
  19. 根据权利要求18所述的设备，其特征在于，所述确定单元更具体用于：
    在所述多个第二载波中，随机选择一个载波作为所述第一载波。
  20. 根据权利要求18所述的设备，其特征在于，所述确定单元更具体用于：
    将所述多个第二载波确定为所述第一载波。
  21. 根据权利要求12所述的设备，其特征在于，所述确定单元具体用于：
    若所述N1个载波的总发射功率大于所述最大发射功率，将所述N1个载波确定为所述N2个载波；
    根据比例系数确定所述N2个载波中每个载波的发射功率，所述比例系数包括所述N2个载波中每个载波的发射功率之间的比例。
  22. 根据权利要求21所述的设备，其特征在于，所述比例系数为网络设备配置的系数，或者所述比例系数为所述设备根据所述N2个载波中每个载波的业务优先等级确定的系数。
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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110167072B (zh) * 2018-02-12 2022-05-13 华为技术有限公司 资源选择的方法和终端设备
US11356962B2 (en) 2019-01-07 2022-06-07 Qualcomm Incorporated Power control in NR-NR dual connectivity
US20220095368A1 (en) * 2019-02-14 2022-03-24 Lenovo (Beijing) Limited Method and apparatus of vehicle-to-everything (v2x) communication
MX2021013712A (es) * 2019-05-14 2021-12-10 Guangdong Oppo Mobile Telecommunications Corp Ltd Procedimientos y dispositivos para el monitoreo de enlaces laterales.
WO2020258632A1 (zh) * 2019-06-26 2020-12-30 Oppo广东移动通信有限公司 无线通信方法和终端设备
US11871454B2 (en) * 2019-07-19 2024-01-09 Qualcomm Incorporated Handling collisions between access link and sidelink
CN114175758A (zh) * 2019-08-06 2022-03-11 三星电子株式会社 用于处理无线通信系统中的传输冲突的装置和方法
CN114208309A (zh) * 2019-08-12 2022-03-18 Oppo广东移动通信有限公司 用于波束故障恢复的装置和方法
WO2021120031A1 (en) * 2019-12-18 2021-06-24 Mediatek Singapore Pte. Ltd. Methods and apparatus of transmission prioritization between uplink and sidelink
US20230163924A1 (en) * 2020-10-06 2023-05-25 Lg Electronics Inc. Method and apparatus for reporting harq feedback to base station in nr v2x

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102257869A (zh) * 2008-10-17 2011-11-23 爱立信电话股份有限公司 提供基于优先级的上行链路调度信息的方法和移动终端
CN102300305A (zh) * 2011-09-23 2011-12-28 电信科学技术研究院 一种上行功率控制的方法及装置
WO2016089185A1 (ko) * 2014-12-05 2016-06-09 엘지전자 주식회사 기기 간 사이드링크를 이용하여 단말이 신호를 송수신하는 방법 및 장치
CN107211263A (zh) * 2015-01-27 2017-09-26 Lg电子株式会社 在无线通信系统中由终端发送d2d发现信号的方法及使用该方法的终端

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107071882B (zh) 2009-02-09 2021-01-01 交互数字专利控股公司 在wtru中进行上行链路功率控制的方法和wtru
WO2016021921A1 (ko) * 2014-08-08 2016-02-11 주식회사 아이티엘 D2d 신호의 송수신 방법 및 장치
WO2018175842A1 (en) * 2017-03-24 2018-09-27 Intel Corporation Carrier aggregation and high order modulation in vehicle-to-vehicle (v2v) sidelink communication

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102257869A (zh) * 2008-10-17 2011-11-23 爱立信电话股份有限公司 提供基于优先级的上行链路调度信息的方法和移动终端
CN102300305A (zh) * 2011-09-23 2011-12-28 电信科学技术研究院 一种上行功率控制的方法及装置
WO2016089185A1 (ko) * 2014-12-05 2016-06-09 엘지전자 주식회사 기기 간 사이드링크를 이용하여 단말이 신호를 송수신하는 방법 및 장치
CN107211263A (zh) * 2015-01-27 2017-09-26 Lg电子株式会社 在无线通信系统中由终端发送d2d发现信号的方法及使用该方法的终端

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3518589A4 *

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