WO2023000331A1 - 通信方法及终端 - Google Patents

通信方法及终端 Download PDF

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Publication number
WO2023000331A1
WO2023000331A1 PCT/CN2021/108252 CN2021108252W WO2023000331A1 WO 2023000331 A1 WO2023000331 A1 WO 2023000331A1 CN 2021108252 W CN2021108252 W CN 2021108252W WO 2023000331 A1 WO2023000331 A1 WO 2023000331A1
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WO
WIPO (PCT)
Prior art keywords
transmission
power
terminal
uplink transmission
duration
Prior art date
Application number
PCT/CN2021/108252
Other languages
English (en)
French (fr)
Inventor
邢金强
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/CN2021/108252 priority Critical patent/WO2023000331A1/zh
Priority to CN202180100248.3A priority patent/CN117597990A/zh
Publication of WO2023000331A1 publication Critical patent/WO2023000331A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • 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

Definitions

  • the present application relates to the field of communication technologies, and more specifically, to a communication method and a terminal.
  • PC power class
  • the present application provides a communication method and a terminal to expand the uplink coverage of the terminal.
  • a communication method including: a terminal performs uplink transmission within a first transmission time window; wherein, the transmission duration of the uplink transmission is less than or equal to the duration of the first transmission time window, and the uplink The maximum transmission power of the transmission is greater than the limit of the terminal's power level to the maximum transmission power, and the average value of the transmission power of the uplink transmission within the first transmission time window is less than or equal to the limit of the terminal's power level to the maximum transmission power power limitation.
  • a terminal including: a transmitting unit configured to perform uplink transmission within a first transmission time window; wherein, the transmission duration of the uplink transmission is less than or equal to the duration of the first transmission time window, so The maximum transmission power of the uplink transmission is greater than the limit of the terminal's power level to the maximum transmission power, and the average value of the uplink transmission transmission power in the first transmission time window is less than or equal to the limit of the terminal's power level to the maximum transmission power. Limitation of maximum transmit power.
  • a terminal including a memory and a processor, the memory is used to store a program, and the processor is used to invoke the program in the memory to execute the method as described in the first aspect.
  • an apparatus including a processor, configured to call a program from a memory to execute the method described in the first aspect.
  • a chip including a processor, configured to call a program from a memory, so that a device installed with the chip executes the method described in the first aspect.
  • a computer-readable storage medium on which a program is stored, and the program causes a computer to execute the method described in the first aspect.
  • a computer program product including a program, the program causes a computer to execute the method described in the first aspect.
  • a computer program causes a computer to execute the method described in the first aspect.
  • the terminal performs uplink transmission within the first transmission time window, wherein the maximum transmission power of the uplink transmission is greater than the limit of the maximum transmission power of the terminal's power level, and the average value of the transmission power of the uplink transmission within the first transmission time window is less than or equal to the maximum transmission power of the terminal.
  • the limitation of the power level avoids the traditional uplink transmission process, the maximum transmission power of the terminal for uplink transmission cannot be higher than the maximum transmission power corresponding to the power level, which is beneficial to expand the uplink coverage of the terminal.
  • the average value of the transmission power of the uplink transmission in the first transmission time window is less than or equal to the limit of the power level of the terminal, so as to reduce the radiation to the human body during the uplink transmission of the terminal .
  • FIG. 1 is a wireless communication system 100 applied in an embodiment of the present application.
  • Fig. 2 is a schematic diagram of the total amount of transmission power used by a terminal for uplink transmission under the limitation of power level.
  • FIG. 3 is a schematic diagram of a transmitting circuit of a terminal applicable to an embodiment of the present application.
  • FIG. 4 is a flowchart of a communication method according to an embodiment of the present application.
  • FIG. 5 is a comparison diagram of changes in transmit power over time between the uplink transmission process of the embodiment of the present application and the traditional uplink transmission process.
  • FIG. 6 is a comparison diagram of changes in transmit power over time between an uplink transmission process according to another embodiment of the present application and a traditional uplink transmission process.
  • FIG. 7 is a comparison diagram of changes in transmit power over time between an uplink transmission process according to another embodiment of the present application and a traditional uplink transmission process.
  • Fig. 8 is a comparison diagram of the change of transmit power with time in the uplink transmission process according to another embodiment of the present application and the traditional uplink transmission process.
  • FIG. 9 is a comparison diagram of changes in transmit power over time between an uplink transmission process according to another embodiment of the present application and a traditional uplink transmission process.
  • FIG. 10 is a schematic diagram of the uplink coverage of the terminal performing uplink transmission under the limitation of the power level.
  • Fig. 11 is a schematic diagram of a terminal according to an embodiment of the present application.
  • Fig. 12 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 1 is a wireless communication system 100 applied in an embodiment of the present application.
  • the wireless communication system 100 may include a network device 110 and a terminal device 120 .
  • the network device 110 may be a device that communicates with the terminal device 120 .
  • the network device 110 can provide communication coverage for a specific geographical area, and can communicate with the terminal device 120 located in the coverage area.
  • FIG. 1 exemplarily shows one network device and two terminals.
  • the wireless communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within the coverage area. This application The embodiment does not limit this.
  • the wireless communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the present application.
  • the technical solutions of the embodiments of the present application can be applied to various communication systems, for example: the fifth generation (5th generation, 5G) system or new radio (new radio, NR), long term evolution (long term evolution, LTE) system , LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), etc.
  • the technical solutions provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system, and satellite communication systems, and so on.
  • the terminal equipment in the embodiment of the present application may also be called user equipment (user equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station (mobile station, MS), mobile terminal (mobile terminal, MT) ), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device.
  • the terminal device in the embodiment of the present application may be a device that provides voice and/or data connectivity to users, and can be used to connect people, objects and machines, such as handheld devices with wireless connection functions, vehicle-mounted devices, and the like.
  • the terminal device in the embodiment of the present application can be mobile phone (mobile phone), tablet computer (Pad), notebook computer, palmtop computer, mobile internet device (mobile internet device, MID), wearable device, virtual reality (virtual reality, VR) equipment, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, smart Wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc.
  • UE can be used to act as a base station.
  • a UE may act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc.
  • a cell phone and an automobile communicate with each other using sidelink signals.
  • Cellular phones and smart home devices communicate without relaying communication signals through a base station.
  • the network device in this embodiment of the present application may be a device for communicating with a terminal device, and the network device may also be called an access network device or a wireless access network device, for example, the network device may be a base station.
  • the network device in this embodiment of the present application may refer to a radio access network (radio access network, RAN) node (or device) that connects a terminal device to a wireless network.
  • radio access network radio access network, RAN node (or device) that connects a terminal device to a wireless network.
  • the base station can broadly cover various names in the following, or replace with the following names, such as: Node B (NodeB), evolved base station (evolved NodeB, eNB), next generation base station (next generation NodeB, gNB), relay station, Access point, transmission point (transmitting and receiving point, TRP), transmission point (transmitting point, TP), primary station MeNB, secondary station SeNB, multi-standard wireless (MSR) node, home base station, network controller, access node , wireless node, access point (access point, AP), transmission node, transceiver node, base band unit (base band unit, BBU), remote radio unit (Remote Radio Unit, RRU), active antenna unit (active antenna unit) , AAU), radio head (remote radio head, RRH), central unit (central unit, CU), distributed unit (distributed unit, DU), positioning nodes, etc.
  • NodeB Node B
  • eNB evolved base station
  • next generation NodeB next generation NodeB
  • a base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof.
  • a base station may also refer to a communication module, a modem or a chip configured in the aforementioned equipment or device.
  • the base station can also be a mobile switching center, a device that undertakes the function of a base station in D2D, vehicle-to-everything (V2X), machine-to-machine (M2M) communication, and a device in a 6G network.
  • V2X vehicle-to-everything
  • M2M machine-to-machine
  • Base stations can support networks of the same or different access technologies. The embodiment of the present application does not limit the specific technology and specific device form adopted by the network device.
  • Base stations can be fixed or mobile.
  • a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station.
  • a helicopter or drone may be configured to serve as a device in communication with another base station.
  • the network device in this embodiment of the present application may refer to a CU or a DU, or, the network device includes a CU and a DU.
  • a gNB may also include an AAU.
  • Network equipment and terminal equipment can be deployed on land, including indoors or outdoors, hand-held or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and satellites in the air.
  • the scenarios where the network device and the terminal device are located are not limited.
  • different terminal devices are usually configured with different PCs, so as to limit the maximum transmit power of the terminal during uplink transmission.
  • the maximum transmit power corresponding to the power level configured by the terminal is higher, that is to say, the terminal can use higher transmit power when performing uplink transmission, then the uplink coverage of the terminal is relatively large, for example, the terminal located in area 2 in Figure 1 in the terminal.
  • the maximum transmission power corresponding to the power level configured by the terminal is low, that is to say, the terminal can only use a low transmission power when performing uplink transmission, then the uplink coverage of the terminal is relatively small, for example, it is located in area 1 in Figure 1 terminal.
  • the power level of the terminal and the transmitting circuit of the terminal are respectively introduced below with reference to FIG. 2 to FIG. 3 .
  • Fig. 2 is a schematic diagram of the total amount of transmission power used by a terminal for uplink transmission under the limitation of power level.
  • the terminal is configured with a power level of PC3, and the maximum transmit power corresponding to PC3 is 23 decibel milliwatts (dBm), then when the terminal performs uplink transmission within a transmit subframe (for example, 1 ms), use The maximum transmit power cannot exceed the maximum transmit power limited by PC3, which is 23dBm.
  • dBm decibel milliwatts
  • the total transmit power for sending the multiple uplink signals cannot exceed the limit of the corresponding power level of the terminal.
  • the total transmission power of the multiple uplink signals transmitted by the terminal on the multiple frequency bands cannot exceed the limit of the above power level.
  • the application scenario of transmitting uplink signals through multiple frequency bands can be that the terminal works in carrier aggregation (carrier aggregation, CA), evolved universal land-based wireless access and new air interface dual connection mode (EUTRA-NR dual connection, EN- DC), dual connectivity (dual connectivity, DC) and other scenarios.
  • carrier aggregation carrier aggregation, CA
  • EUTRA-NR dual connection, EN- DC evolved universal land-based wireless access and new air interface dual connection mode
  • DC dual connectivity
  • a terminal may be provided with multiple power amplifiers (power amplifiers, PAs) for amplifying signal power, and each PA may be used for amplifying signals of different frequency bands or the same frequency band.
  • PAs power amplifiers
  • After a signal is amplified by the PA it needs to be processed by some radio frequency devices before it can be transmitted to the antenna corresponding to the PA for uplink transmission.
  • the radio frequency device After the signal is processed by the radio frequency device, its power will inevitably attenuate. Therefore, in order to accurately know the transmission power of the signal, a radio frequency port can be set in front of the antenna to measure the transmission power of the signal.
  • the maximum transmission power corresponding to the power level introduced above is also used to limit the transmission power of uplink signals detected on the radio interface.
  • FIG. 3 is a schematic diagram of a transmitting circuit of a terminal applicable to an embodiment of the present application.
  • the terminal shown in FIG. 3 may be provided with three PAs, namely PA1, PA2 and PA3.
  • PA1 is used to amplify the signal power of frequency band 1, and the corresponding power level is PC3.
  • PA2 is used to amplify the signal power of frequency band 2, and the corresponding power level is PC2.
  • PA3 is used to amplify the signal power of frequency band 3, and the corresponding power level is PC2.
  • the maximum power specified by PC2 is 26dBm
  • the maximum power specified by PC3 is 23dBm.
  • the power of the signal output by PA1 is attenuated by some radio frequency devices, and the transmit power measured at radio frequency port 1 cannot exceed 23dBm.
  • the power of the signal output by PA2 is attenuated by some radio frequency devices, and the transmit power measured at radio frequency port 2 cannot exceed 26dBm.
  • the power of the signal output by PA3 is attenuated by some radio frequency devices, and the transmit power measured at radio frequency port 3 cannot exceed 26dBm.
  • the PC mechanism is introduced into the existing communication mechanism to control the radiation of the terminal’s transmission power to the human body.
  • the maximum transmission power of the terminal is limited, resulting in a decrease in the uplink coverage of the terminal.
  • area 2 can be regarded as the uplink coverage of the terminal.
  • the maximum transmit power of the terminal for uplink transmission is limited, resulting in the maximum transmit power of the terminal for uplink transmission being less than the maximum transmit power supported by the terminal hardware. Uplink transmission is performed with the network device 110 within the range, and the uplink coverage of the terminal is reduced from area 2 to area 1.
  • this application provides a communication scheme, that is, during the uplink transmission process, the maximum transmission power used by the terminal is allowed to be greater than the maximum transmission power corresponding to the power level of the terminal in a short period of time, so as to improve While the terminal has uplink coverage, it controls the radiation of the transmit power to the human body.
  • FIG. 4 is a flowchart of a communication method according to an embodiment of the present application.
  • the method shown in FIG. 4 includes step S410.
  • the terminal performs uplink transmission within the first transmission time window.
  • the transmission duration of the uplink transmission is less than or equal to the duration of the first transmission time window
  • the maximum transmission power of the uplink transmission is greater than the limit of the maximum transmission power of the power level of the terminal
  • the average transmission power of the uplink transmission in the first transmission time window Value less than or equal to the terminal's power class limit
  • the foregoing uplink transmission can be understood as that the terminal transmits one uplink signal, or that the terminal simultaneously transmits multiple uplink signals.
  • the above-mentioned maximum transmit power of uplink transmission may be understood as the maximum total transmit power when the terminal transmits multiple uplink signals simultaneously.
  • the above-mentioned first transmission time window can be understood as a period of time.
  • the duration of the first transmission time window may be less than or equal to the measurement duration of the power level of the terminal.
  • the duration of the first transmission time window may be greater than the measurement duration of the power level of the terminal, and less than or equal to the test duration of the specific absorption ratio (SAR) of the terminal.
  • SAR specific absorption ratio
  • the measurement duration of the aforementioned power level is 1 millisecond (ms)
  • the duration of the aforementioned SAR test may be 6 minutes.
  • the measurement duration of the above power level and the SAR test duration can be adjusted, which is not limited in this embodiment of the present application.
  • the maximum transmission power of the uplink transmission is greater than the limit of the maximum transmission power of the power level of the terminal. It can be understood that the maximum transmission power of the uplink transmission is greater than the maximum transmission power corresponding to the power level of the terminal. For example, if the power level of the terminal is PC3, and the maximum transmission power corresponding to the power level PC3 is 23dBm, then the maximum transmission power of the uplink transmission is greater than 23dBm.
  • the terminal may use the same transmit power for uplink transmission during the transmission duration of uplink transmission, that is, the terminal may use the maximum transmission power of uplink transmission during the transmission duration of uplink transmission for uplink transmission.
  • the above-mentioned terminal may also use different transmit powers to perform uplink transmission within the transmission duration of the uplink transmission.
  • the terminal performs uplink transmission within the first transmission time window, wherein the maximum transmission power of the uplink transmission is greater than the limit of the maximum transmission power of the power level of the terminal, and the transmission power of the uplink transmission is within the first transmission time window
  • the average value of is less than or equal to the limit of the power level of the terminal, avoiding the traditional uplink transmission process, the maximum transmission power of the terminal for uplink transmission cannot be higher than the maximum transmission power corresponding to the power level, which is conducive to expanding the uplink coverage of the terminal.
  • the average value of the transmission power of the uplink transmission in the first transmission time window is less than or equal to the limit of the power level of the terminal, so as to reduce the radiation to the human body during the uplink transmission of the terminal .
  • the maximum transmit power of uplink transmission may be configured as the maximum transmit power supported by the terminal's hardware.
  • the total amount of transmit power (also known as the second total transmit power) for uplink transmission at the maximum transmit power corresponding to the power level meets the human body radiation safety regulations, so , in the embodiment of this application, the total amount of transmission power (also known as the first total transmission power) of the terminal for uplink transmission within the first time window can be controlled to be equal to the above-mentioned second total transmission power to meet the human body radiation safety specification.
  • the above-mentioned first total transmit power may also be slightly smaller than the second total transmit power, which is not specifically limited in this embodiment of the present application.
  • the terminal may determine the transmission duration of the uplink transmission based on the second total transmission power.
  • the terminal may calculate the proportion of the transmission duration in the power level test duration based on the second total transmission power, and determine the transmission duration of the uplink transmission according to the proportion. That is, before step S410, the above method further includes: based on the second total transmission power, the terminal determines the proportion of the transmission duration in the test duration of the power level; The test duration and the duration of the first time window determine the launch duration.
  • the maximum transmission power supported by the hardware of the terminal is 28dBm, and the terminal needs to be configured to always use 28dBm for uplink transmission within the transmission duration t of uplink transmission.
  • the power level of the terminal is PC3, the maximum transmission power corresponding to PC3 is 23dBm, the test duration T of the power level is 1ms, and the duration of the first time window is 1ms.
  • the transmission duration of uplink transmission accounts for about 30% of the test duration of the power level x%.
  • the linear power value P 28dBm corresponding to 28dBm is the same as the above-mentioned
  • the terminal may also determine the transmission duration of the uplink transmission based on the second total transmission power and the maximum transmission power of the uplink transmission.
  • the embodiment of the present application does not specifically limit the foregoing manner of calculating the transmission duration of the uplink transmission.
  • the transmission duration of the above-mentioned uplink transmission can be calculated by the terminal as described above, or the terminal can report the transmission power of the uplink transmission to the network device, and the network device can calculate the transmission duration of the uplink transmission.
  • Uplink transmission durations corresponding to different maximum transmission powers of uplink transmission may also be specified in the protocol, which is not specifically limited in this embodiment of the present application.
  • the transmission duration of the uplink transmission of the terminal can be controlled by adjusting the duration of the first transmission time window. In some implementation manners, if the terminal has a lot of uplink data to be transmitted, the transmission duration of the uplink transmission may be extended by increasing the duration of the first time window.
  • the maximum transmission power supported by the terminal hardware is 28dBm, and the terminal needs to be configured to always use 28dBm for uplink transmission within the transmission duration t of uplink transmission.
  • the power level of the terminal is PC3, the maximum transmit power corresponding to PC3 is 23dBm, the test duration T of the power level is 1ms, and the transmission duration of uplink transmission accounts for about 30% of the test duration of the power level.
  • the duration of the above-mentioned first time window can be set to 3 ms, based on the ratio of the transmission duration of the above-mentioned uplink transmission to the test duration of the power level It is about 30%, and the test duration of the power level is 1ms. At this time, the transmission duration of the uplink transmission is just 1ms.
  • the maximum transmit power supported by the terminal's hardware is 28dBm, and the terminal needs to be configured to always use 28dBm for uplink transmission within the transmission duration t of uplink transmission.
  • the power level of the terminal is PC3, the maximum transmit power corresponding to PC3 is 23dBm, the test duration T of the power level is 1ms, and the transmission duration of uplink transmission accounts for about 30% of the test duration of the power level.
  • the duration of the above-mentioned first time window can be set to 4 ms, based on the transmission duration of the above-mentioned uplink transmission at the power level test The proportion of the duration is about 30%, and the test duration of the power level is 1ms. At this time, the transmission duration of the uplink transmission is just (4/3)ms.
  • the terminal performs uplink transmission within a continuous period of time, which is beneficial to reduce the transmission delay when the terminal transmits data through uplink transmission.
  • the duration of the first time window may not be adjusted, and the uplink data to be transmitted may be transmitted to the network device after multiple uplink transmissions.
  • the maximum transmission power supported by the terminal hardware is 28dBm, and the terminal needs to be configured to always use 28dBm for uplink transmission within the transmission duration t of uplink transmission.
  • the power level of the terminal is PC3, the maximum transmission power corresponding to PC3 is 23dBm, the duration of the first time window is 1ms, the test duration T of the power level is 1ms, and the transmission duration of uplink transmission accounts for the proportion of the test duration of the power level About 30%.
  • the terminal within the transmission duration of uplink transmission, the terminal performs uplink transmission with the same transmission power.
  • the terminal may only need to occupy a short time period within the transmission duration of uplink transmission, and perform uplink transmission at the maximum transmission power of uplink transmission.
  • the transmit power of the terminal for uplink transmission may be lower than the maximum transmit power for uplink transmission. That is, within the above-mentioned transmission duration of the uplink transmission, the transmission power of the terminal to perform the uplink transmission is different.
  • multiple transmission powers are used for uplink transmission, and power values of at least two transmission powers among the multiple transmission powers are different.
  • the power values of the two transmission powers among the multiple transmission powers are different.
  • the power value of each transmission power among the multiple transmission powers is different.
  • the power level of the terminal is PC2
  • the maximum transmit power corresponding to PC2 is 26dBm
  • the test duration T of the power level is 1ms
  • the transmission duration of uplink transmission is 2ms
  • the length of the first time window is 4ms, based on PC2 It can be known from the corresponding second total transmit power that as long as the transmission duration of uplink transmission accounts for less than or equal to 60% in the first time window, the first total transmit power is less than or equal to the second total transmit power corresponding to PC2.
  • the maximum transmission power supported by the hardware of the terminal is 28dBm.
  • the average value of the uplink transmission power of the control terminal within 4ms is less than or equal to 26dBm, that is, the average value of the uplink transmission power of the control terminal within 4ms is less than or equal to the power level Corresponding maximum power level.
  • the total transmit power of the multiple uplink signals is also limited by the power level of the terminal, which makes the uplink coverage of the terminal when transmitting multiple uplink signals
  • the uplink coverage is smaller than when a single uplink signal is sent, reducing the mobile range of the terminal. Referring to FIG. 10 , assuming that terminal 120 only transmits a single uplink signal to network device 110 on frequency band 1, the maximum transmission power corresponding to the power level of terminal 120 can support terminal 120 to move within the range of area 2.
  • Terminal 120 can only move within Area 1.
  • the communication method in the example of the present application can also solve the above problems.
  • the following two scenarios in which the terminal transmits multiple uplink signals are taken as examples to introduce the communication method in the embodiment of the present application.
  • the above step S410 includes: the terminal performs uplink transmission on a single frequency band through multiple antennas within the first transmission time window.
  • step S410 includes: the terminal performs uplink transmission through multiple frequency bands within the first transmission time window.
  • a terminal may be configured with two PAs, namely PA1 and PA2.
  • PA1 is used to amplify the signal power of frequency band 1
  • the corresponding power level is PC3.
  • PA2 is used to amplify the signal power of frequency band 2, and the corresponding power level is PC2.
  • the maximum power specified by PC2 is 26dBm
  • the maximum power specified by PC3 is 23dBm. Therefore, the maximum transmit power that the terminal can support is (1mW)10 (23dBm/10) + (1mW)10 (26dBm/10) ⁇ (1mW)10 (28dBm/10) , which is 28dBm.
  • the terminal can perform uplink transmission with 28dBm as the maximum transmit power for uplink transmission.
  • the terminal uses relatively high transmit power for uplink transmission, which may cause interference to communications of other users. Therefore, the terminal can determine whether to enable power enhancement based on the scheduling of the network device, that is, use the maximum transmit power (or called "enhanced transmit power") for uplink transmission to perform uplink transmission. Of course, if the interference is not considered, or if there is no interference, the terminal can directly determine whether to enable the power boost without the scheduling of the network equipment, which is not specifically limited in this embodiment of the present application.
  • the above method further includes: the terminal sends a power enhancement request to the network device, and the power enhancement request is used to request to increase the transmit power of the terminal; the terminal receives the power enhancement enabling information sent by the network equipment, and the power enhancement enabling information is used for Enable the terminal to increase transmit power.
  • the terminal can carry power enhancement capability information in the power enhancement request, and the power enhancement capability information is used to indicate the maximum transmission power of uplink transmission. .
  • the terminal may indicate the maximum transmission power of uplink transmission to the network device through other information or dedicated signaling.
  • the specific manner in which the terminal indicates the maximum transmission power of uplink transmission to the network device is not limited.
  • the terminal may indicate the maximum transmission power of the uplink transmission by sending the difference between the maximum transmission power of the uplink transmission and the maximum transmission power corresponding to the power level to the network device.
  • the maximum transmission power that the terminal may send to the network device for uplink transmission is 1 dBm higher than the maximum transmission power corresponding to the power level.
  • the terminal may directly send the power value of the maximum transmit power for uplink transmission to the network device.
  • the terminal can indicate the maximum transmission power of uplink transmission by sending the difference between the maximum transmission power of uplink transmission and the power corresponding to the power level to the network device. Then the terminal can use a bit map (bit map) to indicate the above difference. For example, if the above difference includes ⁇ 1dB, 2dB, 3dB, 4dB, 5dB, 6dB ⁇ , different bits in the bitmap may be used to represent the above specific difference. Of course, the terminal may also directly send the above difference to the network device. This embodiment of the present application does not limit it.
  • the foregoing power enhancement capability information may also include a transmission duration of uplink transmission.
  • the ratio of the transmission duration of uplink transmission to the measurement duration of the power level may be carried.
  • the power enhancement capability information may indicate that the maximum transmission power of uplink transmission is increased by 3dBm relative to the maximum transmission power corresponding to the power level, and the transmission duration of uplink transmission accounts for 50% of the measurement duration of the power level.
  • the above ratio may also be sent through other information or dedicated signaling, which is not limited in the embodiment of the present application.
  • the triggering condition for the terminal to send a power increase request is not specifically limited.
  • the terminal may send a power enhancement request to the network device.
  • the terminal may send a power boost request to the network device.
  • the terminal when the terminal sends the power boost request to the network device multiple times, the terminal may only carry the power boost capability information when sending the power boost request to the network device for the first time, so as to reduce information transmission overhead.
  • the terminal may also carry power enhancement capability information each time it sends a power enhancement request to the network device, so as to improve the reliability of information transmission. This embodiment of the present application does not limit it.
  • the network device may adjust the maximum transmit power reported by the terminal. For example, in order to avoid interference, the network device may reduce the maximum transmit power reported by the terminal. Of course, the network device may also obtain the maximum transmission power without adjusting the terminal report.
  • the network device may carry the above-mentioned adjusted maximum transmit power in the power enhancement enabling information sent to the terminal to instruct the terminal to use the adjusted maximum transmit power.
  • Power value for uplink transmission The specific carrying manner is as described above, the difference between the maximum transmission power reported by the terminal and the adjusted maximum transmission power may be carried in the power enhancement enabling information.
  • the adjusted maximum transmit power may also be directly carried in the power boost enabling information.
  • the network device can also carry the maximum transmit power in the power boost enabling information sent to the terminal.
  • the maximum transmit power is the maximum transmit power reported by the terminal .
  • the network device may not send the maximum transmission power to the terminal.
  • the network device may disable the terminal to increase the transmission power by sending the power enhancement disable information to the terminal, or in other words, the power enhancement disable information is used to disable the terminal to use the maximum transmit power for uplink transmission Uplink launch. That is, the above method further includes: the terminal receives power enhancement disable information sent by the network device, and the power enhancement disable information is used to disable the terminal to increase the transmission power.
  • the terminal can resume uplink transmission based on the power level mechanism, that is, the maximum transmit power during uplink transmission cannot exceed the maximum transmit power corresponding to the power level.
  • Fig. 11 is a schematic diagram of a terminal according to an embodiment of the present application.
  • the terminal 1100 shown in FIG. 11 includes a transmitting unit 1110 .
  • the transmitting unit 1110 may be configured to perform uplink transmission within the first transmission time window. Wherein, the transmission duration of the uplink transmission is less than or equal to the duration of the first transmission time window, the maximum transmission power of the uplink transmission is greater than the limit of the maximum transmission power of the power level of the terminal, and the transmission duration of the uplink transmission The average value of the power within the first transmission time window is less than or equal to the limit of the maximum transmission power of the power level of the terminal.
  • the maximum transmission power of the uplink transmission is the maximum transmission power supported by hardware of the terminal.
  • the duration of the first transmission time window is less than or equal to the measurement duration of the power level of the terminal.
  • the duration of the first transmission time window is longer than the measurement duration of the power level of the terminal, and less than or equal to the test duration of the absorption ratio SAR of the terminal.
  • multiple transmission powers are used to perform the uplink transmission, and power values of at least two transmission powers among the multiple transmission powers are different.
  • the transmitting unit is further configured to perform the uplink transmission on a single frequency band through multiple antennas within the first transmission time window.
  • the transmitting unit 1110 may be further configured to: perform the uplink transmission through multiple frequency bands within the first transmission time window.
  • the transmitting unit 1110 may be configured to send a power enhancement request to the network device, where the power enhancement request is used to request to use the maximum transmission power of the uplink transmission to perform the uplink transmission; the receiving unit is configured to receive the Power enhancement enabling information sent by the network device, where the power enhancement enabling information is used to enable the terminal to perform the uplink transmission using the maximum transmission power of the uplink transmission.
  • the power enhancement request carries power enhancement capability information
  • the power enhancement capability information is used to indicate the maximum transmission power of the uplink transmission.
  • the receiving unit may be further configured to receive power enhancement disabling information sent by the network device, where the power enhancement disabling information is used to disable the maximum transmission of the terminal using the uplink transmission power for the uplink transmission.
  • the first total transmit power of the terminal is less than or equal to the second total transmit power of the terminal, and the first total transmit power is the transmission of the uplink transmission performed by the terminal within the first time window A total amount of power, where the second total transmit power is the total amount of transmit power used by the terminal to perform uplink transmission using the maximum transmit power corresponding to the power level within the measurement duration of the power level.
  • the terminal further includes: the determining unit is configured to determine, based on the second total transmission power, the proportion of the transmission duration in the measurement duration of the power level of the terminal; and based on the transmission duration in The proportion of the power level of the terminal within the measurement duration and the duration of the first transmission time window determine the transmission duration.
  • the transmitting unit 1110 and the receiving unit may be the transceiver 1230 in the communication device 1200
  • the determining unit may be the processor 1210 in the communication device 1200
  • the communication device 1200 may also include a memory 1220 .
  • FIG. 12 For a specific structure of the communication device 1200, reference may be made to FIG. 12 .
  • Fig. 12 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the dashed line in Figure 12 indicates that the unit or module is optional.
  • the communication device 1200 may be used to implement the methods described in the foregoing method embodiments.
  • the communication device 1200 may be a chip or a terminal device.
  • Communications device 1200 may include one or more processors 1210 .
  • the processor 1210 can support the communication device 1200 to implement the methods described in the foregoing method embodiments.
  • the processor 1210 may be a general purpose processor or a special purpose processor.
  • the processor may be a central processing unit (central processing unit, CPU).
  • the processor can also be other general-purpose processors, digital signal processors (digital signal processors, DSPs), application specific integrated circuits (application specific integrated circuits, ASICs), off-the-shelf programmable gate arrays (field programmable gate arrays, FPGAs) Or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • Communications device 1200 may also include one or more memories 1220 .
  • a program is stored in the memory 1220, and the program can be executed by the processor 1210, so that the processor 1210 executes the methods described in the foregoing method embodiments.
  • the memory 1220 may be independent from the processor 1210 or may be integrated in the processor 1210 .
  • the communication device 1200 may also include a transceiver 1230 .
  • the processor 1210 can communicate with other devices or chips through the transceiver 1230 .
  • the processor 1210 may send and receive data with other devices or chips through the transceiver 1230 .
  • the embodiment of the present application also provides a computer-readable storage medium for storing programs.
  • the computer-readable storage medium can be applied to the terminal or the network device provided in the embodiments of the present application, and the program enables the computer to execute the methods performed by the terminal or the network device in the various embodiments of the present application.
  • the embodiment of the present application also provides a computer program product.
  • the computer program product includes programs.
  • the computer program product can be applied to the terminal or the network device provided in the embodiments of the present application, and the program enables the computer to execute the methods performed by the terminal or the network device in the various embodiments of the present application.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the terminal or the network device provided in the embodiments of the present application, and the computer program enables the computer to execute the methods performed by the terminal or the network device in the various embodiments of the present application.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B according to A does not mean determining B only according to A, and B may also be determined according to A and/or other information.
  • sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server, or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be read by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
  • the available medium may be a magnetic medium, (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital versatile disc (digital video disc, DVD)) or a semiconductor medium (for example, a solid state disk (solid state disk, SSD) )Wait.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a digital versatile disc (digital video disc, DVD)
  • a semiconductor medium for example, a solid state disk (solid state disk, SSD)

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Abstract

提供了一种通信方法及终端，该方法包括：终端在第一发射时间窗口内进行上行发射；其中，上行发射的发射时长小于或等于第一发射时间窗口的时长，上行发射的最大发射功率大于终端的功率等级对最大发射功率的限制，上行发射的发射功率在第一发射时间窗口内的平均值小于或等于终端的功率等级对最大发射功率的限制。避免了传统的上行发射过程中，终端进行上行发射的最大发射功率不能高于功率等级对应的最大发射功率，有利于扩大终端的上行覆盖范围。另一方面，通过限制上行发射的发射时长，使得上行发射的发射功率在第一发射时间窗口内的平均值小于或等于终端的功率等级的限制，以减少终端进行上行发射过程中对人体的辐射。

Description

通信方法及终端 技术领域
本申请涉及通信技术领域，并且更为具体地，涉及一种通信方法及终端。
背景技术
通常，终端的发射功率越高给人体带来的辐射就越大。因此，引入了功率等级(power class，PC)机制限制终端进行上行发射时的最大发射功率，以确保终端的发射功率满足人体辐射安全规范。然而，也正是由于PC机制的引入，限制了终端在上行发射时使用的最大发射功率，导致终端的上行覆盖范围变小。
发明内容
本申请提供一种通信方法及终端，以扩大终端的上行覆盖范围。
第一方面，提供了一种通信方法，包括：终端在第一发射时间窗口内进行上行发射；其中，所述上行发射的发射时长小于或等于所述第一发射时间窗口的时长，所述上行发射的最大发射功率大于所述终端的功率等级对最大发射功率的限制，所述上行发射的发射功率在所述第一发射时间窗口内的平均值小于或等于所述终端的功率等级对最大发射功率的限制。
第二方面，提供一种终端，包括：发射单元，用于在第一发射时间窗口内进行上行发射；其中，所述上行发射的发射时长小于或等于所述第一发射时间窗口的时长，所述上行发射的最大发射功率大于所述终端的功率等级对最大发射功率的限制，所述上行发射的发射功率在所述第一发射时间窗口内的平均值小于或等于所述终端的功率等级对最大发射功率的限制。
第三方面，提供一种终端，包括存储器和处理器，所述存储器用于存储程序，所述处理器用于调用所述存储器中的程序，以执行如第一方面所述的方法。
第四方面，提供一种装置，包括处理器，用于从存储器中调用程序，以执行第一方面所述的方法。
第五方面，提供一种芯片，包括处理器，用于从存储器调用程序，使得安装有所述芯片的设备执行第一方面所述的方法。
第六方面，提供一种计算机可读存储介质，其上存储有程序，所述程序使得计算机执行第一方面所述的方法。
第七方面，提供一种计算机程序产品，包括程序，所述程序使得计算机执行第一方面所述的方法。
第八方面，提供一种计算机程序，所述计算机程序使得计算机执行第一方面所述的方法。
终端在第一发射时间窗口内进行上行发射，其中上行发射的最大发射功率大于终端的功率等级对最大发射功率的限制，上行发射的发射功率在第一发射时间窗口内的平均值小于或等于终端的功率等级的限制，避免了传统的上行发射过程中，终端进行上行发射的最大发射功率不能高于功率等级对应的最大发射功率，有利于扩大终端的上行覆盖范围。
另一方面，通过限制上行发射的发射时长，使得上行发射的发射功率在第一发射时间窗口内的平均值小于或等于终端的功率等级的限制，以减少终端进行上行发射过程中对人体的辐射。
附图说明
图1是本申请实施例应用的无线通信系统100。
图2是终端在功率等级的限制下进行上行发射使用的发射功率总量的示意图。
图3是本申请实施例适用的终端的发射电路的示意图。
图4是本申请实施例的通信方法的流程图。
图5是本申请实施例的上行发射过程与传统的上行发射过程中发射功率随时间变化的对比图。
图6是本申请另一实施例的上行发射过程与传统的上行发射过程中发射功率随时间变化的对比图。
图7是本申请另一实施例的上行发射过程与传统的上行发射过程中发射功率随时间变化的对比图。
图8是本申请另一实施例的上行发射过程与传统的上行发射过程中发射功率随时间变化的对比图。
图9是本申请另一实施例的上行发射过程与传统的上行发射过程中发射功率随时间变化的对比图。
图10是终端在功率等级的限制下进行上行发射是上行覆盖范围的示意图。
图11是本申请实施例的终端的示意图。
图12是本申请实施例的通信装置的示意性结构图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
图1是本申请实施例应用的无线通信系统100。该无线通信系统100可以包括网络设备110和终端设备120。网络设备110可以是与终端设备120通信的设备。网络设备110可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备120进行通信。
图1示例性地示出了一个网络设备和两个终端，可选地，该无线通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
可选地，该无线通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。
应理解，本申请实施例的技术方案可以应用于各种通信系统，例如：第五代(5th generation，5G)系统或新无线(new radio，NR)、长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)等。本申请提供的技术方案还可以应用于未来的通信系统，如第六代移动通信系统，又如卫星通信系统，等等。
本申请实施例中的终端设备也可以称为用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台(mobile station，MS)、移动终端(mobile terminal，MT)、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。本申请实施例中的终端设备可以是指向用户提供语音和/或数据连通性的设备，可以用于连接人、物和机，例如具有无线连接功能的手持式设备、车载设备等。本申请的实施例中的终端设备可以是手机(mobile phone)、平板电脑(Pad)、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。可选地，UE可以用于充当基站。例如，UE可以充当调度实体，其在V2X或D2D等中的UE之间提供侧行链路信号。比如，蜂窝电话和汽车利用侧行链路信号彼此通信。蜂 窝电话和智能家居设备之间通信，而无需通过基站中继通信信号。
本申请实施例中的网络设备可以是用于与终端设备通信的设备，该网络设备也可以称为接入网设备或无线接入网设备，如网络设备可以是基站。本申请实施例中的网络设备可以是指将终端设备接入到无线网络的无线接入网(radio access network，RAN)节点(或设备)。基站可以广义的覆盖如下中的各种名称，或与如下名称进行替换，比如：节点B(NodeB)、演进型基站(evolved NodeB，eNB)、下一代基站(next generation NodeB，gNB)、中继站、接入点、传输点(transmitting and receiving point，TRP)、发射点(transmitting point，TP)、主站MeNB、辅站SeNB、多制式无线(MSR)节点、家庭基站、网络控制器、接入节点、无线节点、接入点(access point，AP)、传输节点、收发节点、基带单元(base band unit，BBU)、射频拉远单元(Remote Radio Unit，RRU)、有源天线单元(active antenna unit，AAU)、射频头(remote radio head，RRH)、中心单元(central unit，CU)、分布式单元(distributed unit，DU)、定位节点等。基站可以是宏基站、微基站、中继节点、施主节点或类似物，或其组合。基站还可以指用于设置于前述设备或装置内的通信模块、调制解调器或芯片。基站还可以是移动交换中心以及设备到设备D2D、车辆外联(vehicle-to-everything，V2X)、机器到机器(machine-to-machine，M2M)通信中承担基站功能的设备、6G网络中的网络侧设备、未来的通信系统中承担基站功能的设备等。基站可以支持相同或不同接入技术的网络。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。
基站可以是固定的，也可以是移动的。例如，直升机或无人机可以被配置成充当移动基站，一个或多个小区可以根据该移动基站的位置移动。在其他示例中，直升机或无人机可以被配置成用作与另一基站通信的设备。
在一些部署中，本申请实施例中的网络设备可以是指CU或者DU，或者，网络设备包括CU和DU。gNB还可以包括AAU。
网络设备和终端设备可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上；还可以部署在空中的飞机、气球和卫星上。本申请实施例中对网络设备和终端设备所处的场景不做限定。
应理解，本申请中的通信设备的全部或部分功能也可以通过在硬件上运行的软件功能来实现，或者通过平台(例如云平台)上实例化的虚拟化功能来实现。
在无线通信系统100中，不同的终端设备通常配置有不同的PC，以限制终端在上行发射时的最大发射功率。通常，若终端配置的功率等级对应的最大发射功率较高，也就是说终端进行上行发射时可以使用较高的发射功率，那么该终端的上行覆盖范围较大，例如， 图1中位于区域2中的终端。若终端配置的功率等级对应的最大发射功率较低，也就是说终端进行上行发射时只能使用较低的发射功率，那么该终端的上行覆盖范围较小，例如，图1中位于区域1中的终端。
为了便于理解本申请，下文结合图2至图3分别介绍终端的功率等级以及终端的发射电路。
功率等级
通常，终端的发射功率越高给人体带来的辐射就越大。因此，引入了功率等级机制以限制终端在进行上行发射时使用的最大发射功率，确保终端在上行发射时的发射功率满足人体辐射安全规范。图2是终端在功率等级的限制下进行上行发射使用的发射功率总量的示意图。参见图2，假设终端被配置的功率等级为PC3，且PC3对应的最大发射功率为23分贝毫瓦(dBm)，那么该终端在一个发射子帧(例如，1ms)内进行上行发射时，使用的最大发射功率不能超过PC3限制的最大发射功率，即23dBm。
另外，当终端同时需要发送多个上行信号时，发送上述多个上行信号的总发射功率也不能超过终端对应的功率等级的限制。例如，当终端通过多个频带同时发射多个上行信号时，终端在多个频带上发射多个上行信号的总发射功率不能超过上述功率等级的限制。其中，通过多个频带发射上行信号的应用场景可以是终端工作于载波聚合(carrier aggregation，CA)、演进的通用陆基无线接入及新空口的双连接模式(EUTRA-NR dual connection，EN-DC)、双连接(dual connectivity，DC)等场景。又例如，终端通过单频段多天线同时发射多个上行信号时，终端发射多个上行信号的总发射功率不能超过上述功率等级的限制。
终端的发射电路
通常，终端可以设置有多个用于将信号功率放大的功率放大器(power amplifier，PA)，每个PA可以用于放大不同频段或相同频段的信号。对于每个PA而言，其最大可放大功率是有限的。当一个信号经过PA进行功率放大后，还需要经过一些射频器件的处理后，才能传输到PA对应的天线上进行上行发射。然而，信号在经过射频器件的处理后，其功率难免会发生衰减，因此，为了准确获知信号的发射功率，可以在天线前设置射频口，用于测量信号的发射功率。
通常，上文介绍的功率等级对应的最大发射功率也是用于限制上行信号在射频口被检测到的发射功率。
图3是本申请实施例适用的终端的发射电路的示意图。如图3所示的终端可以设置有三个PA，即PA1、PA2以及PA3。其中，PA1用于放大频段1的信号功率，对应的功率等级为PC3。PA2用于放大频段2的信号功率，对应的功率等级为PC2。PA3用于放大频 段3的信号功率，对应的功率等级为PC2。其中，PC2规定的最大功率为26dBm，PC3规定的最大功率为23dBm。
相应地，PA1输出的信号的功率，经过一些射频器件的衰减，在射频口1被测量到的发射功率不能超过23dBm。PA2输出的信号的功率，经过一些射频器件的衰减，在射频口2被测量到的发射功率不能超过26dBm。PA3输出的信号的功率，经过一些射频器件的衰减，在射频口3被测量到的发射功率不能超过26dBm。
如上文所述，现有的通信机制中引入PC的机制，以控制终端的发射功率对人体辐射，但是也是由于PC机制的引入，限制了终端的最大发射功率，导致终端的上行覆盖范围减小。例如，参见图1，假设终端硬件支持的最大发射功率，可以使得终端在区域2中与网络设备110进行上行发射，此时，区域2可以视为终端的上行覆盖范围。然而，由于PC机制的引入，限制了终端进行上行发射的最大发射功率，导致终端进行上行发射的最大发射功率小于终端硬件支持的最大发射功率，在这种情况下，终端仅能在区域1的范围内与网络设备110进行上行发射，终端的上行覆盖范围由区域2缩小至区域1。
因此，为了避免上述问题，本申请提供了一种通信方案，即在上行发射过程中，允许终端在较短的时间内，使用的最大发射功率大于终端的功率等级对应的最大发射功率，以提高终端上行覆盖范围的同时，控制发射功率对人体的辐射。
下文结合图4介绍本申请实施例的通信方法。图4是本申请实施例的通信方法的流程图。图4所示的方法包括步骤S410。
S410，终端在第一发射时间窗口内进行上行发射。
其中，上行发射的发射时长小于或等于第一发射时间窗口的时长，上行发射的最大发射功率大于终端的功率等级对最大发射功率的限制，上行发射的发射功率在第一发射时间窗口内的平均值小于或等于终端的功率等级的限制。
上述上行发射可以理解为，终端发射一个上行信号，或者终端同时发射多个上行信号。当终端同时发射多个上行信号时，上述上行发射的最大发射功率可以理解为终端同时发射多个上行信号时最大的总发射功率。
上述第一发射时间窗口可以理解为一段时间。在一些实现方式中，第一发射时间窗口的时长可以小于或等于终端的功率等级的测量时长。在另一些实现方式中，第一发射时间窗口的时长可以大于终端的功率等级的测量时长，且小于或等于终端的吸收比率(specific absorption ratio，SAR)的测试时长。基于目前的规定，上述功率等级的测量时长为1毫秒(ms)，上述SAR的测试时长可以是6分钟。当然，上述功率等级的测量时长以及SAR测试时长都是可以调整的，本申请实施例对此不作限定。
上行发射的最大发射功率大于终端的功率等级对最大发射功率的限制，可以理解为，上行发射的最大发射功率大于终端的功率等级对应的最大发射功率。例如，终端的功率等级为PC3，且功率等级PC3对应的最大发射功率为23dBm，则上行发射的最大发射功率大于23dBm。
在一些实现方式中，上述终端在上行发射的发射时长内，可以使用相同的发射功率进行上行发射，即，终端在上行发射的发射时长内，可以使用上行发射的最大发射功率进行上行发射。当然，上述终端在上行发射的发射时长内，还可以使用不同的发射功率进行上行发射。关于上述两种实现方式的具体例子，可以参见下文中结合图5至图9的介绍，为了简洁，在此不再具体赘述。
在本申请实施例中，终端在第一发射时间窗口内进行上行发射，其中上行发射的最大发射功率大于终端的功率等级对最大发射功率的限制，上行发射的发射功率在第一发射时间窗口内的平均值小于或等于终端的功率等级的限制，避免了传统的上行发射过程中，终端进行上行发射的最大发射功率不能高于功率等级对应的最大发射功率，有利于扩大终端的上行覆盖范围。
另一方面，通过限制上行发射的发射时长，使得上行发射的发射功率在第一发射时间窗口内的平均值小于或等于终端的功率等级的限制，以减少终端进行上行发射过程中对人体的辐射。
通常，为了最大限度的扩大终端的上行覆盖范围，可以将上行发射的最大发射功率配置为终端的硬件支持的最大发射功率。
基于传统的功率等级的规定，在功率等级的测量时长内，以功率等级对应的最大发射功率进行上行发射的发射功率总量(又称第二总发射功率)是满足人体辐射安全规范的，因此，在本申请实施例中，可以控制终端在第一时间窗口内，进行上行发射的发射功率总量(又称第一总发射功率)，与上述第二总发射功率相等，来满足人体辐射安全规范。当然，上述第一总发射功率也可以略小于第二总发射功率，本申请实施例对此不作具体限定。
为了使第一总发射功率与第二总发射功率相等，终端可以基于第二总发射功率，确定上行发射的发射时长。在一些实现方式中，终端可以基于第二总发射功率来计算发射时长在功率等级测试时长中的占比，并通过占比来确定上行发射的发射时长。即在步骤S410之前，上述方法还包括：终端基于第二总发射功率，确定发射时长在功率等级的测试时长内的占比；终端基于发射时长在功率等级的测试时长内的占比、功率等级的测试时长以及第一时间窗口的时长，确定发射时长。
参见图5，假设终端的硬件支持的最大发射功率为28dBm，并且需要配置终端在上行 发射的发射时长t内一直采用28dBm进行上行发射。终端的功率等级为PC3，PC3对应的最大发射功率为23dBm，功率等级的测试时长T为1ms，第一时间窗口的时长为1ms。
由于终端的硬件支持的最大发射功率28dBm约为PC3对应的最大发射功率23dBm的三倍，为了使硬件支持的最大发射功率对应的第一总发射功率，与功率等级PC3对应的第二总发射功率相等，上行发射的发射时长在功率等级的测试时长中的占比x％约为30％。
具体地，基于第一总发射功率与第二总发射功率相同，且终端使用23dBm进行上行发射的发射时长1ms可以理解为占用了100％的时长，则28dBm对应的线性功率值P 28dBm与上述占比x％的乘积，等于23dBm对应的线性功率值P 23dBm与100％的乘积，即P 28dBm×x％＝P 23dBm×100％，其中，线性功率值P瓦(W)与X分贝毫瓦(dBm)之间的转换公式为P(W)＝[(1mW)10 (XdBm/10)]，则
x％＝(1mW)10 (23dBm/10)/(1mW)10 (28dBm/10)＝10 (23dBm-28dBm)/10≈30％。
在另一些实现方式中，终端还可以基于第二总发射功率，以及上行发射的最大发射功率，确定上行发射的发射时长。本申请实施例对上述计算上行发射的发射时长的方式不作具体限定。
当然，在本申请实施例中，上述上行发射的发射时长可以如上文介绍由终端计算，也可以由终端将上行发射的发射功率上报给网络设备，由网络设备计算上行发射的发射时长。还可以在协议中规定不同的上行发射的最大发射功率对应的上行发射时长，本申请实施例对此不作具体限定。
在本申请实施例中，可以通过调整第一发射时间窗口的时长，控制终端上行发射的发射时长。在一些实现方式中，如果终端待发射的上行数据较多，可以通过增大第一时间窗口的时长，以延长上行发射的发射时长。
例如，基于上文介绍，终端的硬件支持的最大发射功率为28dBm，并且需要配置终端在上行发射的发射时长t内一直采用28dBm进行上行发射。终端的功率等级为PC3，PC3对应的最大发射功率为23dBm，功率等级的测试时长T为1ms，且上行发射的发射时长在功率等级的测试时长中的占比约为30％。
那么，参见图6，如果待发射的上行数据需要的传输时间为1ms，那么可以将上述第一时间窗口的时长设置为3ms，基于上述上行发射的发射时长在功率等级的测试时长中的占比约为30％，以及功率等级的测试时长为1ms，此时，上行发射的发射时长刚好为1ms。
又例如，基于上文介绍，终端的硬件支持的最大发射功率为28dBm，并且需要配置终 端在上行发射的发射时长t内一直采用28dBm进行上行发射。终端的功率等级为PC3，PC3对应的最大发射功率为23dBm，功率等级的测试时长T为1ms，且上行发射的发射时长在功率等级的测试时长中的占比约为30％。
那么，参见图7，如果待发射的上行数据需要的传输时间为(4/3)ms，那么可以将上述第一时间窗口的时长设置为4ms，基于上述上行发射的发射时长在功率等级的测试时长中的占比约为30％，以及功率等级的测试时长为1ms，此时，上行发射的发射时长刚好为(4/3)ms。
在本申请实施例中，终端是在一段连续的时间段内进行上行发射的，有利于减少终端通过上行发射传输数据时的传输时延。
当然，在另一些实现方式中，如果终端待发射的上行数据较多，也可以不调整第一时间窗口的时长，经过多次上行发射将待发射的上行数据发射至网络设备。
例如，基于上文介绍，终端的硬件支持的最大发射功率为28dBm，并且需要配置终端在上行发射的发射时长t内一直采用28dBm进行上行发射。终端的功率等级为PC3，PC3对应的最大发射功率为23dBm，第一时间窗口的时长为1ms，功率等级的测试时长T为1ms，且上行发射的发射时长在功率等级的测试时长中的占比约为30％。
那么，参见图8，如果待发射的上行数据需要的总传输时间为(4/3)ms，那么需要4个第一时间窗口便可以将上述上行数据发送完成。
上文结合图5至图8，在上行发射的发射时长内，终端以相同的发射功率进行上行发发射。但是，假设终端是在向网络设备的方向移动，这种情况下，终端可能仅需要在上行发射的发射时长内占用很短的时长，以上行发射的最大发射功率，进行上行发射。而在上行发射的发射时长的其余时间里，由于终端与网络设备的距离较近，终端进行上行发射的发射功率可以低于上行发射的最大发射功率。也就是上文提及的在上行发射的发射时长内，终端进行上行发射的发射功率不同。
或者说，在上行发射的发射时长内，使用多个发射功率进行上行发射，且多个发射功率中至少两个发射功率的功率取值是不等的。例如，在上行发射的发射时长内，多个发射功率中的两个发射功率的功率取值是不等的。又例如，在上行发射的发射时长内，多个发射功率中的每个发射功率的功率取值都是不同的。
例如，参见图9，假设终端的功率等级为PC2，PC2对应的最大发射功率为26dBm，功率等级的测试时长T为1ms，上行发射的发射时长2ms，第一时间窗口的长度为4ms，基于PC2对应的第二总发射功率可知，上行发射的发射时长在第一时间窗口中的占比只 要小于或等于60％，则第一总发射功率小于或等于PC2对应的第二总发射功率。终端的硬件支持的最大发射功率为28dBm。在终端向网络设备移动的过程中，终端只需要占用t 1ms时长，以28dBm的发射功率进行上行发射，其中t 1ms<1ms，并在上行发射的发射时长的剩余时长t 剩余内，先以P t2的发射功率进行上行发射，并持续t 2ms，再以P t3的发射功率进行上行发射并持续t 3ms，t 剩余＝t 2ms+t 3ms。
此时，只需要控制终端的上行发射的发射功率在4ms内的平均值小于或等于26dBm即可，也就是说，控制终端的上行发射的发射功率在4ms内的平均值小于或等于功率等级的对应的最大功率等级。
基于上述功率等级的介绍，终端同时需要发送多个上行信号时，发射多个上行信号的总发射功率也受终端的功率等级的限制，这就使得终端在发射多个上行信号时，上行覆盖要小于发送单个上行信号时的上行覆盖，减小了终端的移动范围。参见图10，假设终端120设备仅在频带1上向网络设备110发射单个上行信号时，终端120的功率等级对应的最大发射功率可以支持终端120在区域2的范围内移动。然而，如果终端120需要同时在频带1和频带2上向网络设备110同时发射多个上行信号时，多个上行信号的总发射功率则不能超过终端的功率等级对应的最大发射功率，此时，终端120仅能在区域1内移动。
基于上文介绍，可知本申请实例的通信方法也能解决上述问题，下文分别基于终端发射多个上行信号的两个场景为例，介绍本申请实施例的通信方法。
在单频段多天线场景下进行上行发射时，上述步骤S410包括：终端在第一发射时间窗口内，通过多个天线在单频带上进行上行发射。
在多频带的场景下进行上行发射时，上述步骤S410包括：终端在第一发射时间窗口内，通过多个频带进行上行发射。
例如，终端可以设置有两个PA，即PA1和PA2。其中，PA1用于放大频段1的信号功率，对应的功率等级为PC3。PA2用于放大频段2的信号功率，对应的功率等级为PC2。其中，PC2规定的最大功率为26dBm，PC3规定的最大功率为23dBm。因此，终端可以支持的最大发射功率是(1mW)10 (23dBm/10)+(1mW)10 (26dBm/10)≈(1mW)10 (28dBm/10)，即28dBm。此时，终端可以以28dBm为上行发射的最大发射功率进行上行发射。
在一些情况下，终端使用较高的发射功率进行上行发射，可能会对其他用户的通信产生干扰。因此，终端可以基于网络设备的调度来确定是否使能功率增强，即使用上行发射的最大发射功率(或者称为“增强后的发射功率”)进行上行发射。当然，如果不考虑干扰，或者不存在干扰的情况下，终端可以直接判断是否使能功率增强，而无需网 络设备的调度，本申请实施例对此不作具体限定。
在步骤S410之前，上述方法还包括：终端向网络设备发送功率增强请求，功率增强请求用于请求增强终端的发射功率；终端接收网络设备发送的功率增强使能信息，功率增强使能信息用于使能终端增强发射功率。
通常网络设备需要基于增强后的发射功率，来判断是否会对其他设备的通信产生干扰，因此，终端可以在功率增强请求携带功率增强能力信息，功率增强能力信息用于指示上行发射的最大发射功率。当然，终端可以通过其他信息或专用的信令向网络设备指示上行发射的最大发射功率。
在本申请实施例中，对终端向网络设备指示上行发射的最大发射功率的具体方式不作限定。在一些实现方式中，终端可以通过向网络设备发送上行发射的最大发射功率与功率等级对应的最大发射功率之间的差值，来指示上行发射的最大发射功率。例如，终端可以向网络设备发送上行发射的最大发射功率比功率等级对应的最大发射功率高1dBm。在另一些实现方式中，终端可以直接向网络设备发送上行发射的最大发射功率的功率值。
若终端可以通过向网络设备发送上行发射的最大发射功率与功率等级对应的功率之间的差值，来指示上行发射的最大发射功率。则终端可以采用位图(bit map)指示上述差值。例如，上述差值包括{1dB、2dB、3dB、4dB、5dB、6dB}，则可以使用位图中不同的位表示上述具体差值。当然，终端也可以直接向网络设备发送上述差值。本申请实施例对此不做限定。
可选地，上述功率增强能力信息也可以包含上行发射的发射时长。例如，可以携带上行发射的发射时长在功率等级的测量时长中的占比。例如，功率增强能力信息可以指示上行发射的最大发射功率相对于功率等级对应的最大发射功率增强3dBm，且上行发射的发射时长在功率等级的测量时长中的占比为50％。当然，在本申请实施例中，上述占比也可以通过其他信息或者专用信令发送，本申请实施例对此不作限定。
在本申请实施例中，对终端发送功率增强请求的触发条件不作具体限定。例如，当终端处于小区边缘，需要增强发射功率来提高上行覆盖时，终端可以向网络设备发送功率增强请求。又例如，当终端有大量的上行数据需要传输时，终端可以向网络设备发送功率增强请求。
另外，终端在多次向网络设备发送功率增强请求的情况下，终端可以仅在第一次向网络设备发送功率增强请求时携带功率增强能力信息，以减少信息的传输开销。当然，终端也可以在每次向网络设备发送功率增强请求时都携带功率增强能力信息，以提高信息传输的可靠性。本申请实施例对此不作限定。
在一些情况下，网络设备可以对终端上报的最大发射功率进行调整。例如，为了避免干扰，网络设备可以将终端上报的最大发射功率减少。当然，网络设备也可以不调整终端上报得到最大发射功率。
相应地，若网络设备对终端上报的最大发射功率进行了调整，网络设备可以在向终端发送的功率增强使能信息中，携带上述调整后的最大发射功率，以指示终端使用调整后的最大发射功率值进行上行发射。具体的携带方式如上文介绍，可以在功率增强使能信息中携带终端上报的最大发射功率与调整后的最大发射功率之间的差值。当然，也可以直接在功率增强使能信息中携带调整后的最大发射功率。
若网络设备未对终端上报的最大发射功率进行了调整，网络设备也可以在向终端发送的功率增强使能信息中，携带最大发射功率，此时，最大发射功率即为终端上报的最大发射功率。具体的携带方式可以参见上文介绍，为了简洁，在此不再赘述。当然，在这种情况下，网络设备也可以不向终端发送最大发射功率。
可选地，网络设备可以通过向终端发送功率增强去使能信息，来去使能终端增强发射功率，或者说，功率增强去使能信息用于去使能终端使用上行发射的最大发射功率进行上行发射。即上述方法还包括：终端接收网络设备发送的功率增强去使能信息，功率增强去使能信息用于去使能终端增强发射功率。
相应地，终端在接收到上述功率增强去使能信息后，可以恢复基于功率等级的机制进行上行发射，即上行发射时最大发射功率不能超过功率等级对应的最大发射功率。
上文结合图1至图10，详细描述了本申请的方法实施例，下面结合图11至图12，详细描述本申请的装置实施例。应理解，方法实施例的描述与装置实施例的描述相互对应，因此，未详细描述的部分可以参见前面方法实施例。
图11是本申请实施例的终端的示意图。图11所示的终端1100包括发射单元1110。
发射单元1110可用于在第一发射时间窗口内进行上行发射。其中，所述上行发射的发射时长小于或等于所述第一发射时间窗口的时长，所述上行发射的最大发射功率大于所述终端的功率等级对最大发射功率的限制，所述上行发射的发射功率在所述第一发射时间窗口内的平均值小于或等于所述终端的功率等级对最大发射功率的限制。
可选地，所述上行发射的最大发射功率为所述终端的硬件支持的最大发射功率。
可选地，所述第一发射时间窗口的时长小于或等于所述终端的功率等级的测量时长。
可选地，所述第一发射时间窗口的时长大于所述终端的功率等级的测量时长，且小于或等于所述终端的吸收比率SAR的测试时长。
可选地，在所述上行发射的发射时长内，使用多个发射功率进行所述上行发射，且所 述多个发射功率中至少两个发射功率的功率取值是不等的。
可选地，所述发射单元还可用于在所述第一发射时间窗口内，通过多个天线在单频带上进行所述上行发射。
可选地，所述发射单元1110可还用于：在所述第一发射时间窗口内，通过多个频带进行所述上行发射。
可选地，所述发射单元1110可用于向网络设备发送功率增强请求，所述功率增强请求用于请求使用所述上行发射的最大发射功率进行所述上行发射；接收单元，用于接收所述网络设备发送的功率增强使能信息，所述功率增强使能信息用于使能所述终端使用所述上行发射的最大发射功率进行所述上行发射。
可选地，所述功率增强请求携带功率增强能力信息，所述功率增强能力信息用于指示所述上行发射的最大发射功率。
可选地，所述接收单元可还用于接收所述网络设备发送的功率增强去使能信息，所述功率增强去使能信息用于去使能所述终端使用所述上行发射的最大发射功率进行所述上行发射。
可选地，所述终端的第一总发射功率小于或等于所述终端的第二总发射功率，所述第一总发射功率为所述终端在所述第一时间窗口内进行上行发射的发射功率总量，所述第二总发射功率为所述终端在所述功率等级的测量时长内，使用所述功率等级对应的最大发射功率进行上行发射的发射功率的总量。
可选地，所述终端还包括：确定单元可用于基于所述第二总发射功率，确定所述发射时长在所述终端的功率等级的测量时长内的占比；以及基于所述发射时长在所述终端的功率等级的测量时长内的占比，以及所述第一发射时间窗口的时长，确定所述发射时长。
在一些可选地实施例中，上述发射单元1110和接收单元可以是通信装置1200中的收发器1230，上述确定单元可以是通信装置1200中的处理器1210。通信装置1200还可以包括存储器1220。通信装置1200的具体结构可以参见图12。
图12是本申请实施例的通信装置的示意性结构图。图12中的虚线表示该单元或模块为可选的。该通信装置1200可用于实现上述方法实施例中描述的方法。通信装置1200可以是芯片或终端设备。
通信装置1200可以包括一个或多个处理器1210。该处理器1210可支持通信装置1200实现前文方法实施例所描述的方法。该处理器1210可以是通用处理器或者专用处理器。例如，该处理器可以为中央处理单元(central processing unit，CPU)。或者，该处理器还可以是其他通用处理器、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、分立门或者晶体管逻辑器件、分立硬件组件等。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。
通信装置1200还可以包括一个或多个存储器1220。存储器1220上存储有程序，该程序可以被处理器1210执行，使得处理器1210执行前文方法实施例所描述的方法。存储器1220可以独立于处理器1210也可以集成在处理器1210中。
通信装置1200还可以包括收发器1230。处理器1210可以通过收发器1230与其他设备或芯片进行通信。例如，处理器1210可以通过收发器1230与其他设备或芯片进行数据收发。
本申请实施例还提供一种计算机可读存储介质，用于存储程序。该计算机可读存储介质可应用于本申请实施例提供的终端或网络设备中，并且该程序使得计算机执行本申请各个实施例中的由终端或网络设备执行的方法。
本申请实施例还提供一种计算机程序产品。该计算机程序产品包括程序。该计算机程序产品可应用于本申请实施例提供的终端或网络设备中，并且该程序使得计算机执行本申请各个实施例中的由终端或网络设备执行的方法。
本申请实施例还提供一种计算机程序。该计算机程序可应用于本申请实施例提供的终端或网络设备中，并且该计算机程序使得计算机执行本申请各个实施例中的由终端或网络设备执行的方法。
应理解，在本申请实施例中，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
应理解，本申请实施例中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
在本申请所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实施例方案的目的。
另外，在本申请各个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。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够读取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，数字通用光盘(digital video disc，DVD))或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
以上所述，仅为本申请的具体实施方式，但本申请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申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (30)

  1. 一种通信方法，其特征在于，包括：
    终端在第一发射时间窗口内进行上行发射；
    其中，所述上行发射的发射时长小于或等于所述第一发射时间窗口的时长，所述上行发射的最大发射功率大于所述终端的功率等级对最大发射功率的限制，所述上行发射的发射功率在所述第一发射时间窗口内的平均值小于或等于所述终端的功率等级对最大发射功率的限制。
  2. 如权利要求1所述的方法，其特征在于，所述上行发射的最大发射功率为所述终端的硬件支持的最大发射功率。
  3. 如权利要求1或2所述的方法，其特征在于，所述第一发射时间窗口的时长小于或等于所述终端的功率等级的测量时长。
  4. 如权利要求1或2所述的方法，其特征在于，所述第一发射时间窗口的时长大于所述终端的功率等级的测量时长，且小于或等于所述终端的吸收比率SAR的测试时长。
  5. 如权利要求1-4中任一项所述的方法，其特征在于，在所述上行发射的发射时长内，使用多个发射功率进行所述上行发射，且所述多个发射功率中至少两个发射功率的功率取值是不等的。
  6. 如权利要求1-5中任一项所述的方法，其特征在于，所述终端在第一发射时间窗口内进行上行发射，包括：
    所述终端在所述第一发射时间窗口内，通过多个天线在单频带上进行所述上行发射。
  7. 如权利要求1-5中任一项所述的方法，其特征在于，所述终端在第一发射时间窗口内进行上行发射，包括：
    所述终端在所述第一发射时间窗口内，通过多个频带进行所述上行发射。
  8. 如权利要求1-7中任一项所述的方法，其特征在于，在所述终端在第一发射时间窗口内进行上行发射之前，所述方法还包括：
    所述终端向网络设备发送功率增强请求，所述功率增强请求用于请求使用所述上行发射的最大发射功率进行所述上行发射；
    所述终端接收所述网络设备发送的功率增强使能信息，所述功率增强使能信息用于使能所述终端使用所述上行发射的最大发射功率进行所述上行发射。
  9. 如权利要求8所述的方法，其特征在于，所述功率增强请求携带功率增强能力信息，所述功率增强能力信息用于指示所述上行发射的最大发射功率。
  10. 如权利要求8或9所述的方法，其特征在于，所述方法还包括：
    所述终端接收所述网络设备发送的功率增强去使能信息，所述功率增强去使能信息用于去使能所述终端使用所述上行发射的最大发射功率进行所述上行发射。
  11. 如权利要求1-10中任一项所述的方法，其特征在于，所述终端的第一总发射功率小于或等于所述终端的第二总发射功率，所述第一总发射功率为所述终端在所述第一时间窗口内进行上行发射的发射功率总量，所述第二总发射功率为所述终端在所述功率等级的测量时长内，使用所述功率等级对应的最大发射功率进行上行发射的发射功率的总量。
  12. 如权利要求11中任一项所述的方法，其特征在于，所述终端在第一发射时间窗口内进行上行发射之前，所述方法还包括：
    所述终端基于所述第二总发射功率，确定所述发射时长在所述终端的功率等级的测量时长内的占比；
    所述终端基于所述发射时长在所述终端的功率等级的测量时长内的占比，以及所述第一发射时间窗口的时长，确定所述发射时长。
  13. 一种终端，其特征在于，包括：
    发射单元，用于在第一发射时间窗口内进行上行发射；
    其中，所述上行发射的发射时长小于或等于所述第一发射时间窗口的时长，所述上行发射的最大发射功率大于所述终端的功率等级对最大发射功率的限制，所述上行发射的发射功率在所述第一发射时间窗口内的平均值小于或等于所述终端的功率等级对最大发射功率的限制。
  14. 如权利要求13所述的终端，其特征在于，所述上行发射的最大发射功率为所述终端的硬件支持的最大发射功率。
  15. 如权利要求13或14所述的终端，其特征在于，所述第一发射时间窗口的时长小于或等于所述终端的功率等级的测量时长。
  16. 如权利要求13或14所述的终端，其特征在于，所述第一发射时间窗口的时长大于所述终端的功率等级的测量时长，且小于或等于所述终端的吸收比率SAR的测试时长。
  17. 如权利要求13-16中任一项所述的终端，其特征在于，在所述上行发射的发射时长内，使用多个发射功率进行所述上行发射，且所述多个发射功率中至少两个发射功率的功率取值是不等的。
  18. 如权利要求13-17中任一项所述的终端，其特征在于，所述发射单元，还用于：
    在所述第一发射时间窗口内，通过多个天线在单频带上进行所述上行发射。
  19. 如权利要求13-17中任一项所述的终端，其特征在于，所述发射单元，还用于：
    在所述第一发射时间窗口内，通过多个频带进行所述上行发射。
  20. 如权利要求13-19中任一项所述的终端，其特征在于，
    所述发射单元，用于向网络设备发送功率增强请求，所述功率增强请求用于请求使用所述上行发射的最大发射功率进行所述上行发射；
    接收单元，用于接收所述网络设备发送的功率增强使能信息，所述功率增强使能信息用于使能所述终端使用所述上行发射的最大发射功率进行所述上行发射。
  21. 如权利要求20所述的终端，其特征在于，所述功率增强请求携带功率增强能力信息，所述功率增强能力信息用于指示所述上行发射的最大发射功率。
  22. 如权利要求20或21所述的终端，其特征在于，所述接收单元，还用于：
    接收所述网络设备发送的功率增强去使能信息，所述功率增强去使能信息用于去使能所述终端使用所述上行发射的最大发射功率进行所述上行发射。
  23. 如权利要求13-22中任一项所述的终端，其特征在于，所述终端的第一总发射功率小于或等于所述终端的第二总发射功率，所述第一总发射功率为所述终端在所述第一时间窗口内进行上行发射的发射功率总量，所述第二总发射功率为所述终端在所述功率等级的测量时长内，使用所述功率等级对应的最大发射功率进行上行发射的发射功率的总量。
  24. 如权利要求23所述的终端，其特征在于，所述终端还包括：
    确定单元，用于基于所述第二总发射功率，确定所述发射时长在所述终端的功率等级的测量时长内的占比；以及
    基于所述发射时长在所述终端的功率等级的测量时长内的占比，以及所述第一发射时间窗口的时长，确定所述发射时长。
  25. 一种终端，其特征在于，包括存储器和处理器，所述存储器用于存储程序，所述处理器用于调用所述存储器中的程序，以执行如权利要求1-12中任一项所述的方法。
  26. 一种装置，其特征在于，包括处理器，用于从存储器中调用程序，以执行如权利要求1-12中任一项所述的方法。
  27. 一种芯片，其特征在于，包括处理器，用于从存储器调用程序，使得安装有所述芯片的设备执行如权利要求1-12中任一项所述的方法。
  28. 一种计算机可读存储介质，其特征在于，其上存储有程序，所述程序使得计算机执行如权利要求1-12中任一项所述的方法。
  29. 一种计算机程序产品，其特征在于，包括程序，所述程序使得计算机执行如权利要求1-12中任一项所述的方法。
  30. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求1-12中任一项所述的方法。
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