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WO2017173920A1 - 一种功率控制方法及设备 - Google Patents

一种功率控制方法及设备 Download PDF

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Publication number
WO2017173920A1
WO2017173920A1 PCT/CN2017/077528 CN2017077528W WO2017173920A1 WO 2017173920 A1 WO2017173920 A1 WO 2017173920A1 CN 2017077528 W CN2017077528 W CN 2017077528W WO 2017173920 A1 WO2017173920 A1 WO 2017173920A1
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WO
WIPO (PCT)
Prior art keywords
subframe
power compensation
compensation amount
power
network device
Prior art date
Application number
PCT/CN2017/077528
Other languages
English (en)
French (fr)
Inventor
唐浩
马小骏
龚政委
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP17778584.7A priority Critical patent/EP3429281B1/en
Publication of WO2017173920A1 publication Critical patent/WO2017173920A1/zh
Priority to US16/151,971 priority patent/US10595279B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • 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
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/228—TPC being performed according to specific parameters taking into account previous information or commands using past power values or information
    • 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
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • 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
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
    • 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
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
    • 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
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/246—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters where the output power of a terminal is based on a path parameter calculated in said terminal
    • 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
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/248—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters where transmission power control commands are generated based on a path parameter
    • 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
    • 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
    • H04W52/286—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 during data packet transmission, e.g. high speed packet access [HSPA]
    • 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
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels

Definitions

  • the present invention relates to the field of wireless communications, and more particularly to a transmit power control technique in a wireless communication system.
  • Frequency division duplex FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • the transceiver signal is operated at the same time in the same frequency band, it is a full-duplex technology.
  • Full-duplex application to wireless transmission is a research hotspot in recent years.
  • the introduction of full-duplex technology in cellular systems can bring advantages such as improved spectrum efficiency and increased freedom of resource scheduling.
  • the application of full-duplex technology to wireless communication networks requires solving the self-interference problem of full-duplex devices. Because of simultaneous co-frequency transmission and reception, the transmitted signals on the full-duplex transceivers will cause great interference to the received signals.
  • the self-interference cancellation device has high complexity and difficulty in implementation.
  • the network device in the full-duplex system is a full-duplex device
  • the user equipment UE User Equipment
  • the received signal-to-noise ratio is lower than expected; or, the full-duplex subframe may be configured by the network device to distinguish another set of power control parameters from other subframes, and perform independent sub-frame level power control.
  • the independent The number of subframes of the power control parameters increases, resulting in a significant increase in signaling overhead and affecting network performance. Therefore, a power control method is required to perform power control on the UE to ensure that the signal-to-noise ratio of each uplink subframe is smooth when the full-duplex technology is applied, thereby ensuring the reception performance of the uplink subframe, and not significantly increasing the signaling overhead.
  • This paper describes a transmission power control method, apparatus and system to ensure smooth signal-to-noise ratio (SNR) of each uplink subframe and reception performance of uplink subframes when full-duplex technology is applied, without significantly increasing signaling overhead.
  • SNR smooth signal-to-noise ratio
  • embodiments of the present application provide a method of controlling transmit power.
  • the method includes: the user equipment uses the first power compensation amount of the cell level to perform the transmit power compensation on the subframe in the first subframe set; and the user equipment sends the data on the subframe by using the uplink transmit power that has been compensated by the transmit power.
  • the sub-frames in the system are divided into different sets, and different sub-frames in different sub-frame sets are compensated for different transmit powers, and the transmit power can be more flexibly adjusted according to the specific conditions of the sub-frames, so that different types of sub-frames are obtained. Both can meet the requirements of receiving signal to noise ratio without independent power control for different types of subframes.
  • the first power compensation amount of the cell level may be pre-agreed by the network device and the user equipment, or may be sent by the network device to the user equipment by using the cell level parameter.
  • the cell power compensation value is used to compensate the transmit power of the subframes of the first subframe set of all UEs in the cell, which can improve the power control of the subframe transmit power of the first subframe set, especially under the parameter In the case of the first power compensation amount, the small amount is adopted.
  • the first power compensation amount at the zone level can significantly reduce the signaling overhead.
  • the UE before the user equipment uses the first power compensation amount of the cell level to compensate the transmission power of the subframe in the first subframe set, the UE receives the first power compensation amount information that is sent by the network device.
  • Cell-level message is a System Information Block (SIB).
  • SIB System Information Block
  • the first power compensation amount is configured by using the cell level parameter, and the network device sends the first power compensation amount to all UEs in the cell by using the SIB, and the signaling is not increased as the number of the UEs in the cell increases.
  • SIB System Information Block
  • the improvement of the transmit power of the subframes in the first subframe set can ensure the uplink subframe receive quality without introducing excessive signaling overhead.
  • the user equipment performs transmit power compensation on the subframes in the second subframe set by using the second power compensation amount at the cell level, where the first power compensation amount is greater than the second power compensation amount.
  • the UE may perform transmit power compensation on the subframes in the second subframe set according to specific conditions to ensure uplink receiving quality of the subframes in the second subframe set, where the first power compensation amount is greater than the second power compensation amount.
  • the subframes in the first subframe set may be subjected to more transmit power compensation, thereby ensuring smooth uplink receive signal to noise ratio of the subframes in different subframe sets.
  • the first subframe set is a full-duplex subframe set
  • the second subframe set is a non-full duplex subframe set
  • the full-duplex subframe set is
  • the subframe is a subframe in which the network device receives downlink data transmission in the same frequency band of the subframe while receiving data on the subframe, and the subframe in the non-full duplex subframe set is received by the network device.
  • a sub-frame in which data on a sub-frame is not simultaneously transmitted in the same frequency band of the sub-frame.
  • the subframes in the full-duplex subframe set are interfered by the downlink transmission signal of the network device, causing the uplink reception noise of the network device to increase.
  • the UE uses the same power control method as the subframe in the non-full-duplex subframe set to calculate the transmission power. Performing a transmission will result in a lower than expected signal-to-noise ratio for the network equipment.
  • the UE's transmit power can be raised for the subframes in the full-duplex subframe set to ensure that the network device receives the signal-to-noise ratio in accordance with expectations, thereby ensuring full-duplex technology.
  • the signal-to-noise ratio of each uplink subframe is smoothed during application, thereby ensuring the reception performance of the uplink subframe.
  • the first subframe set and the second subframe set may be further divided according to specific situations, and are not limited to the division manner of the full-duplex subframe set and the non-full-duplex subframe set. The application does not limit this.
  • the second amount of power compensation is zero. That is, the power consumption of the subframes in the second subframe set may be not compensated, and the uplink power calculation may be performed according to the power control method configured by the network device.
  • the cell level message may include the first power compensation.
  • the quantity information and the second power compensation amount information may also include only the first power compensation amount information in order to simplify the cell-level message saving signaling overhead.
  • the power control method of the network device configuration is different according to different communication systems. For example, in the LTE system, the uplink power control method specified by the 3GPP (3rd Generation Partnership Project) TS 36.213 can be referred to. Power Control.
  • the first level power compensation amount and the second power compensation amount information are included in the cell level message.
  • the cell-level message message includes the first power compensation amount information and the second power compensation amount information, which can configure the second power compensation amount more flexibly, and does not increase the number of cells as the number of cells increases.
  • the first power compensation amount is greater than the second power compensation amount, the transmission power of the subframe in the first subframe set is improved, and the uplink subframe reception quality is ensured. Excessive signaling overhead is introduced.
  • the cell-level message includes a first power compensation amount information, a first power compensation amount indicating a physical uplink shared channel transmission power, a first power compensation amount of a physical uplink control channel transmission power, and a sounding reference. At least one of a first power compensation amount of signal transmission power.
  • the physical uplink shared channel is mainly used for carrying application data, and may also carry uplink control information, radio resource control signaling, and the like, for example, PUSCH (Physical Uplink Shared CHannel) and other defined as the network evolves.
  • the function of the uplink channel; the physical uplink control channel is mainly used to carry uplink control information, for example, PUCCH (Physical Uplink Control CHannel) And other uplink channels having the above functions defined as the network evolves; the sounding reference signals are used to estimate or measure uplink channel quality, such as SRS (Sounding Reference Signal) and other functions defined above as the network evolves. Reference signal.
  • the uplink power channel of the physical uplink shared channel, the physical uplink control channel, and the sounding reference signal may apply the first power compensation amount of the uplink transmit power, and improve the uplink transmit power of the subframe in the first subframe set to ensure the channel.
  • the signal-to-noise ratio of the uplink subframe is smoothed to ensure the reception quality of the uplink subframe.
  • the first power compensation amount of the one or more channels in the physical channel may be indicated by a first power compensation amount information in the cell level message, and the same first power compensation amount may be used for different uplink physical channels.
  • the uplink subframe reception quality on different uplink physical channels can be guaranteed, and the number of cell-level message bits can be saved.
  • the cell-level message includes three first power compensation amount information, respectively indicating a first power compensation amount of the physical uplink shared channel transmit power and a first power compensation amount of the physical uplink control channel transmit power. And a first power compensation amount for detecting a reference channel transmission power.
  • the physical uplink shared channel is mainly used for carrying application data, and may also carry uplink control information, radio resource control signaling, and the like, for example, PUSCH (Physical Uplink Shared CHannel) and other defined as the network evolves.
  • the physical uplink control channel is mainly used for carrying uplink control information, for example, PUCCH (Physical Uplink Control CHannel) and other uplink channels having the above functions defined as the network evolves;
  • uplink control information for example, PUCCH (Physical Uplink Control CHannel) and other uplink channels having the above functions defined as the network evolves;
  • SRS Sounding Reference Signal
  • the cell-level message includes three first power compensation amount information, which can adopt different first power compensation amounts for different uplink physical channels, and more flexiblely ensure uplink subframe reception quality on different uplink physical channels.
  • an embodiment of the present application provides a method for controlling a transmission power.
  • the method includes the network device receiving data on a subframe in a first subframe set sent by the user equipment after the user equipment uses a first power compensation amount of a cell level to perform transmission power compensation.
  • the method before the network device receives the data on the subframe in the first subframe set that is sent by the user equipment after the user equipment uses the first power compensation amount of the cell level, the method further includes: The network device sends a cell level message including the first power compensation amount information to the user equipment.
  • the cell level message is a System Information Block (SIB).
  • SIB System Information Block
  • the network device selects the first power compensation amount from a set of power compensation amounts.
  • the power compensation amount set is a set containing one or more power compensation amounts. Defining the power compensation amount set can provide more power compensation amount selection for network devices with different self-interference cancellation capabilities, and can also allow network devices to select different power compensation amounts in different interference scenarios or for different physical channels, and also Cell level messages for transmitting power compensation amount information can be simplified.
  • the network device may select the power compensation amount from the set of power compensation amounts according to its self-interference cancellation capability.
  • the network device may also randomly select the power compensation amount from the set of power compensation amounts.
  • the network device receives data on a subframe in a second subframe set that is sent by the user equipment by using a second power compensation amount of a cell level, and the first power compensation amount. Greater than the second power compensation amount.
  • the first subframe set is a full-duplex subframe set
  • the second subframe set is a non-full duplex subframe set
  • the full-duplex subframe set is
  • the subframe is a subframe in which the network device receives downlink data transmission in the same frequency band of the subframe while receiving data on the subframe
  • the subframe in the non-full duplex subframe set is a network.
  • the second amount of power compensation is zero.
  • the power consumption of the subframes in the second subframe set may be not compensated, and the uplink power calculation may be performed according to the power control policy in the prior art.
  • the cell level message may include the first power compensation.
  • the quantity information and the second power compensation amount information may also include only the first power compensation amount information in order to simplify the cell-level message saving signaling overhead.
  • the first level power compensation amount and the second power compensation amount information are included in the cell level message.
  • the cell-level message includes a first power compensation amount information, a first power compensation amount indicating a physical uplink shared channel transmission power, a first power compensation amount of a physical uplink control channel transmission power, and a sounding reference. At least one of a first power compensation amount of signal transmission power.
  • the physical uplink shared channel is mainly used for carrying application data, and may also carry uplink control information, radio resource control signaling, and the like, for example, PUSCH (Physical Uplink Shared CHannel) and other defined as the network evolves.
  • the physical uplink control channel is mainly used for carrying uplink control information, for example, PUCCH (Physical Uplink Control CHannel) and other uplink channels having the above functions defined as the network evolves;
  • PUCCH Physical Uplink Control CHannel
  • SRS Sounding Reference Signal
  • the same first power compensation amount can be used, which can ensure the uplink subframe reception quality on different uplink physical channels, and can save the cell-level message bit number.
  • the cell-level message includes three first power compensation amount information, which respectively indicate a first power compensation amount of a physical uplink shared channel transmit power, a first power compensation amount of a physical uplink control channel transmit power, and A first power compensation amount of the reference signal transmission power is detected.
  • the physical uplink shared channel is mainly used for carrying application data, and may also carry uplink control information, radio resource control signaling, and the like, for example, PUSCH (Physical Uplink Shared CHannel) and other defined as the network evolves.
  • the physical uplink control channel is mainly used for carrying uplink control information, for example, PUCCH (Physical Uplink Control CHannel) and other uplink channels having the above functions defined as the network evolves;
  • uplink control information for example, PUCCH (Physical Uplink Control CHannel) and other uplink channels having the above functions defined as the network evolves;
  • SRS Sounding Reference Signal
  • the cell-level message includes three first power compensation amount information, which can adopt different first power compensation amounts for different uplink physical channels, and more flexiblely ensure uplink subframe reception quality on different uplink physical channels.
  • the user equipment satisfies the formula when calculating the transmit power of the uplink physical channel:
  • the P(i) is the transmit power of the uplink physical channel calculated by the user equipment on the i-th subframe (that is, the transmit power after being compensated by the transmit power), and the P max,c ( i) the maximum transmit power of the user equipment on the uplink physical channel in the i-th subframe of the serving cell c, the P ori,c (i) being the power control of the user equipment according to the network device configuration
  • the method for calculating the transmit power of the uplink physical channel on the i-th subframe of the serving cell c, and the power control method configured by the network device is different according to different communication systems. For example, in the LTE system, reference may be made to 3GPP.
  • the uplink power control method specified in TS 36.213 performs power control.
  • the ⁇ FD,c (i) is a first power compensation amount or a second power compensation amount when calculating a transmit power of the uplink physical channel, and when the ith subframe belongs to the first subframe set, ⁇ FD And c (i) is the first power compensation amount of the uplink physical channel, when the i-th subframe belongs to the second subframe set, ⁇ FD,c (i) is the second power of the uplink physical channel The amount of compensation.
  • the user equipment performs power headroom calculation using the above-mentioned transmit power compensated uplink transmit power.
  • the embodiment of the present application provides a user equipment, where the user equipment has a function of realizing user equipment behavior in the foregoing method.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the structure of the user equipment includes a processor and a transmitter.
  • the user equipment also includes a receiver.
  • the processor is configured to support a user equipment to perform a corresponding function in the foregoing method
  • the transmitter is configured to support a user equipment to send information or data involved in the foregoing method to a network device
  • the receiver is configured to support the user equipment to receive the foregoing Information or data sent by the network device involved in the method.
  • the user equipment may also include a memory for coupling with the processor to store program instructions and data necessary for the user equipment.
  • the embodiment of the present application provides a network device, where the network device has a function of implementing the behavior of the network device in the foregoing method.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the structure of the network device includes a receiver. In one possible design, the structure of the network device also includes a transmitter. In one possible design, the structure of the network device also includes a processor. The processor is configured to support a network device to perform a corresponding function of the above methods. The transmitter and receiver are configured to support communication between a network device and a user equipment, the transmitter is configured to send information or data involved in the foregoing method to a user equipment, and the receiver is configured to support the network device to receive the foregoing method. Information or data sent by the user equipment involved.
  • the network device can also include a memory for coupling with the processor to store program instructions and data necessary for the network device.
  • the structure of the network device may further include an interface unit for supporting communication with other network devices, such as communication with a core network node.
  • the embodiment of the present application provides a communication system, where the system includes the network device and the user equipment in the foregoing aspect.
  • the embodiment of the present application provides a computer storage medium for storing computer software instructions used by the user equipment, which includes a program designed to perform the above aspects.
  • the embodiment of the present application provides a computer storage medium for storing computer software instructions used by the network device, which includes a program designed to perform the above aspects.
  • the solution provided by the present application considers the impact of the self-interference problem of the full-duplex network device on the uplink subframe receiving performance, and uses different power compensation amounts for the subframes in different subframe sets, so as to ensure that each The signal-to-noise ratio of the uplink subframes is smoothed, and the receiving performance of the uplink subframe is ensured.
  • the power compensation amount is configured by using the cell-level parameter, and the uplink subframe receiving performance can be ensured without causing excessive overhead of the signaling channel.
  • FIG. 1 is a schematic diagram of a possible application scenario of the present application
  • FIG. 2 is a schematic diagram of a full duplex principle in a possible wireless communication system according to the present application.
  • FIG. 3 is a schematic flowchart of a method for controlling a transmit power according to an embodiment of the present disclosure
  • FIG. 4 is a schematic flowchart diagram of another method for controlling a transmit power according to an embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
  • the network architecture and the service scenario described in the embodiments of the present application are for the purpose of more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation of the technical solutions provided by the embodiments of the present application.
  • the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.
  • a wireless communication system such as a system using code division multiple access, frequency division multiple access, time division multiple access, orthogonal frequency division multiple access, single carrier frequency division multiple access, etc., is particularly suitable for applying full duplex technology for communication.
  • Wireless communication system As shown in FIG. 1 , it is a simplified network architecture diagram of a communication system provided by an embodiment of the present application.
  • the UE User Equipment
  • the network device can communicate with the user device or with another network device, such as a communication between the macro base station and the access point.
  • the user equipment referred to in the present application may include various handheld devices having wireless communication functions, in-vehicle devices, wearable devices, computing devices, control devices, or other processing devices connected to the wireless modem, and various forms of user devices ( User Equipment, UE), Mobile Station (MS), Terminal (Terminal) or Terminal Equipment (Terminal Equipment).
  • UE User Equipment
  • MS Mobile Station
  • Terminal Terminal
  • Terminal Equipment Terminal Equipment
  • the network device involved in the present application includes a base station (BS), a network controller, or a mobile switching center, etc., wherein the device that directly communicates with the user equipment through the wireless channel is usually a base station, and the base station may include various forms.
  • the macro base station, the micro base station, the relay station, the access point, or the remote radio unit (RRU), etc. of course, the wireless communication with the user equipment may also be other network equipments having wireless communication functions. This is not a sole limitation.
  • the names of devices with base station functions may be different, for example, in an LTE network, called an evolved Node B (eNB or eNodeB), in the third generation. In a 3G network, it is called a Node B (Node B).
  • an LTE network is taken as an example to describe the technical principle of a wireless communication system in which a network device uses full-duplex technology for communication.
  • a network device uses full-duplex technology for communication.
  • full-duplex technology is applied, and the upper layer can be configured to use full-duplex transmission on a partial subframe
  • UE1 is taken as an example.
  • Some UEs perform uplink transmission using frequency band f1 and downlink transmission using frequency band f2.
  • Some UEs using UE2 as an example perform downlink transmission using frequency band f1, use frequency band f2 for uplink transmission, and eNB performs simultaneous transmission and reception on frequency bands f1 and f2 (ie, Applying the full-duplex technology, for the eNB, the downlink transmission signal of the eNB to the UE1 will generate the same-frequency interference to the eNB receiving the uplink transmission signal of the UE2, and the downlink transmission signal of the eNB to the UE2 will also receive the UE1 for the eNB.
  • the uplink transmission signal generates co-channel interference, and the above two types of interference are self-interference problems in the application of full-duplex technology.
  • the upper layer can configure different subframe matching modes for different UEs. In some identical subframes or time slots, there are cases where the UE performs uplink transmission and the UE performs downlink reception. As shown in the example in FIG. 2(b), because the used subframe matching manner is different, In the time slot n, the UE1 performs uplink transmission, and the UE2 performs downlink reception. At this time, for the eNB, the downlink transmission signal of the eNB to the UE2 generates the same-frequency interference to the eNB receiving the uplink transmission signal of the UE1, that is, the full-duplex technology application.
  • TDD Time Division Duplex
  • Self-interference problem It can be understood that when the eNB does not adopt the full-duplex technology in some subframes, the eNB does not have self-interference when receiving the uplink transmission of the UE, and when the eNB adopts the full-duplex technology, the uplink reception of the eNB is subject to self-interference.
  • the impact that is, the degree of uplink interference when the eNB adopts full-duplex technology and does not adopt full-duplex technology is different.
  • the uplink transmit power of the UE may be compensated according to whether the current subframe adopts a full-duplex technology, and the signal-to-noise ratio of each uplink subframe is smoothed when the full-duplex technology is applied.
  • the receiving performance of the uplink subframe does not significantly increase the signaling overhead.
  • FIG. 3 is a schematic flowchart of a method for controlling a transmission power according to an embodiment of the present application.
  • the user equipment performs transmit power compensation on the subframes in the first subframe set by using the first power compensation amount at the cell level.
  • the first subframe set may be divided into subframes according to specific requirements in the system, which is not limited in this application. For example, in an LTE system that introduces full-duplex technology, the first subframe set may be all applications. A collection of sub-frames of full-duplex technology.
  • the performing transmit power compensation on the subframes in the first subframe set refers to compensating the first power compensation amount when calculating the transmit power of the uplink physical channel transmitted on the subframe.
  • the use of the first power compensation amount of the cell to perform the transmit power compensation means that all user equipments in the cell use the same first power compensation amount to transmit the corresponding uplink physical channel in the subframe in the first subframe set. Power compensation. It can be understood that with the development of wireless communication technologies, the minimum time unit for calculating the transmission power may be reduced to a symbol or a shorter time period, and the embodiment provided by the present application can still be applied, for example, when calculating the transmission power. When the minimum time unit is a symbol, the user equipment uses the first power compensation amount at the cell level to perform transmission power compensation on the symbols in the first symbol set.
  • the user equipment acquires a first power compensation amount at the cell level.
  • the first power compensation amount may be pre-agreed by the network device and the user equipment, or may be sent by the network equipment to all user equipments in the cell by using the cell level parameter.
  • the user equipment receives a cell-level message, such as a system information block (SIB), transmitted by the network device, including the first power compensation amount information.
  • SIB includes a first power compensation amount information, indicating a first power compensation amount of a physical uplink shared channel (eg, PUSCH (Physical Uplink Shared CHannel)) transmit power, and a physical uplink control channel (for example, PUCCH).
  • PUSCH Physical Uplink Shared CHannel
  • the SIB includes three first power compensation amount information, respectively indicating a first power compensation amount of a physical uplink shared channel (eg, PUSCH) transmit power, and a physical uplink control channel (eg, PUCCH) transmit power.
  • the first power compensation amount and the first power compensation amount of the sounding reference signal (eg, SRS) transmission power can also be applied to other uplink physical channels, and are not limited to the channel types mentioned above.
  • the user equipment may also perform transmit power compensation on the subframes in the second subframe set by using the second power compensation amount at the cell level.
  • the second power compensation amount may be pre-agreed by the network device and the user equipment, for example, the second power compensation amount is zero; or the network equipment may be sent to all user equipments in the cell by using the cell level parameter, for example, at the SIB.
  • the second power compensation amount information is included in the data.
  • the user equipment may perform transmit power compensation on different uplink physical channels transmitted on the subframes in the first subframe set, for example, transmit power compensation for one or more channels in the PUSCH, PUCCH, and SRS, in multiple
  • the first power compensation amounts used may be the same or different
  • the used second power compensation amounts may be the same or different.
  • the user equipment satisfies the formula when calculating the transmit power of the uplink physical channel:
  • the P(i) is the transmit power of the uplink physical channel calculated by the user equipment on the i-th subframe
  • the P max,c (i) is the user equipment in the serving cell c
  • the P ori,c (i) is the uplink physical channel calculated by the user equipment according to the power control method configured by the network device in the serving cell thereof c.
  • the transmit power on the i-th subframe, the power control method configured by the network device is different according to different communication systems. For example, in the LTE system, the power control may be performed by referring to the uplink power control method specified in 3GPP TS 36.213.
  • the ⁇ FD,c (i) is a first power compensation amount or a second power compensation amount when calculating a transmit power of the uplink physical channel, and when the ith subframe belongs to the first subframe set, ⁇ FD , C (i) is the power of the compensation amount of the first uplink physical channel, when the i-th sub-frames belonging to the second sub-frame set, ⁇ FD, c (i) is the uplink physical channel of the second power The amount of compensation.
  • the first subframe set is a full-duplex subframe set
  • the second subframe set is a non-full duplex subframe set
  • the subframes in the full-duplex subframe set are a subframe in which downlink data transmission is also performed in the same frequency band of the subframe while the network device receives the data on the subframe
  • the subframe in the non-full duplex subframe set receives the subclass for the network device
  • a subframe in which data on a frame is not transmitted at the same time in the same frequency band of the subframe.
  • the user equipment transmits data on the subframe using uplink transmit power that has been subjected to the transmit power compensation.
  • the data includes data such as service information, control signaling, or reference signals carried on a physical uplink shared channel (for example, PUSCH), a physical uplink control channel (for example, PUCCH), or a sounding reference signal (for example, SRS) channel.
  • PUSCH physical uplink shared channel
  • PUCCH physical uplink control channel
  • SRS sounding reference signal
  • FIG. 4 is a schematic flowchart diagram of another power control method according to an embodiment of the present disclosure.
  • the network device pairs the UEs and uses full-duplex technology for the paired UEs.
  • the UE may measure the interference level between the UEs and report the interference level between the UEs to the network device according to the interference detection signal sent between the UEs, and the network equipment pairs the UEs with less interference with each other according to the degree of mutual interference between the UEs. And use full-duplex technology for paired UEs.
  • the eNB pairs UE1 and UE2 with less interference with each other, where UE1 uses subframe ratio 0, UE2 uses subframe ratio 5, as shown in Table 1, in subframe 3,
  • UE1 uses subframe ratio 1
  • UE2 uses subframe ratio 5 as shown in Table 1, in subframe 3
  • the eNB needs to use full duplex in subframes 3, 4, 6, 7, 8, and 9 (that is, full-duplex subframe set).
  • the transmission directions of UE1 and UE2 are the same on the remaining subframes (ie, the set of non-full duplex subframes), and the eNB does not adopt full-duplex technology.
  • the subframe in the full-duplex subframe set is a subframe in which the network device receives the downlink data in the same frequency band of the data on the subframe
  • the non-full duplex A subframe in a subframe set is a subframe in which a network device does not perform downlink data transmission in the same frequency band of the subframe while receiving data on such a subframe.
  • the network device notifies the UE that the UE belongs to the subframe of the full-duplex subframe set by using RRC (Radio Resource Control) signaling.
  • RRC Radio Resource Control
  • the network device transmits a UE-level bitmap indicating the subframe position in the full-duplex subframe set through RRC signaling. For example, 0001101111 (1 indicates a full-duplex subframe, and 0 indicates a non-full-duplex subframe): indicates that in one radio frame, subframes 3, 4, 6, 7, 8, and 9 are in a full-duplex subframe set. Subframe, other subframes are subframes in a set of non-full duplex subframes.
  • the network device determines a power compensation amount for calculating the uplink transmit power.
  • the network device selects a power compensation amount for calculating the uplink transmit power from the set of power compensation amounts. For example, the network device may select a power compensation amount for calculating the uplink transmission power from the power compensation amount set according to its self-interference cancellation capability, or may randomly select the power compensation amount in the power compensation amount set. Defining the power compensation amount set can provide more power compensation amount selection for network devices with different self-interference cancellation capabilities, and can also allow network devices to select different power compensation amounts in different interference scenarios or for different physical channels, and also Cell level messages for transmitting power compensation amount information can be simplified.
  • the power compensation amount for calculating the uplink transmit power including the power compensation amount of the PUSCH (Physical Uplink Shared CHannel) transmit power, and the power compensation amount of the PUCCH (Physical Uplink Control CHannel) transmit power, and the SRS (Sounding) Reference Signal)
  • the amount of power compensation for the transmit power After the full-duplex technology is introduced, the uplink physical channel of the PUSCH, the PUCCH, and the SRS can apply the power compensation amount of the uplink transmit power, and improve the uplink transmit power of the subframe in the full-duplex subframe set to ensure the channel.
  • the signal-to-noise ratio of the uplink subframe is smoothed to ensure the reception quality of the uplink subframe.
  • the network device determines a first power compensation amount for power compensation of subframe transmit power in a first subframe set of one or more different physical channels of the PUSCH, PUCCH, and SRS channels, When a first power compensation amount is used for transmission power compensation of a plurality of different physical channels, the first power compensation amounts of the plurality of different physical channels are equal.
  • the network device determines a first amount of power compensation on different physical channels based on its self-interference cancellation capabilities on different physical channels.
  • the second power compensation amount of the PUSCH transmit power, the second power compensation amount of the PUCCH transmit power, and the second power compensation amount of the SRS transmit power are all zero.
  • the network device determines a second power compensation amount on different physical channels according to specific requirements.
  • the second power compensation amount on different physical channels may be randomly selected from the power compensation amount set, which is required in the process of selecting. It is ensured that the second power compensation amount on the same physical channel is smaller than the first power compensation amount, and the second power compensation amount on one or more physical channels may also be determined to be zero.
  • the network device determines, according to its self-interference cancellation capability, a specific power compensation amount in the power compensation amount set as the first power compensation amount of the PUSCH, the PUCCH, and the SRS channel, and is used to compensate for the full double on the channel.
  • the uplink transmit power of the subframe in the set of subframes is ⁇ 1, 2, 3, 5 ⁇ dB, and the network device selects 1 dB as the first power compensation amount of the uplink physical channel.
  • the second power compensation amount of the uplink physical channel is 0, that is, the uplink transmit power of the subframe in the non-full duplex subframe set is not compensated on the PUSCH, PUCCH, and SRS channels.
  • the network device determines, in accordance with its self-interference cancellation capability on different uplink physical channels, three specific power compensation amounts in the power compensation amount set as the first power of the PUSCH, the PUCCH, and the SRS channel, respectively.
  • the amount of compensation is used to compensate for the uplink transmit power of the subframes in the full-duplex subframe set on the above channel.
  • the power compensation amount set is ⁇ 1, 2, 3, 5 ⁇ dB
  • the network device selects 1 dB as the first power compensation amount of the PUSCH, 2 dB is the first power compensation amount of the PUCCH, and 5 dB is the first power compensation amount of the SRS.
  • the second power compensation amount of the uplink physical channel is 0, that is, the uplink transmit power of the subframe in the non-full duplex subframe set is not compensated on the PUSCH, PUCCH, and SRS channels.
  • the network device determines, according to its self-interference cancellation capability, a specific power compensation amount in the power compensation amount set as the first power compensation amount of the PUSCH, PUCCH, and SRS channels for compensating the full double on the channel.
  • the uplink transmit power of the subframe in the set of subframes is ⁇ 1, 2, 3, 5 ⁇ dB, and the network device selects 3 dB as the first power compensation amount of the uplink physical channel.
  • the network device determines a specific power compensation amount in the power compensation amount set as the second power compensation amount of the PUSCH, the PUCCH, and the SRS channel for compensating the uplink transmit power of the subframe in the non-full duplex subframe set on the channel.
  • the power compensation amount set is ⁇ 1, 2, 3, 5 ⁇ dB, and the network device selects 1 dB as the second power compensation amount of the uplink physical channel.
  • the first power compensation amount on the same physical channel. It is greater than the second power compensation amount, so that the signal to noise ratio of the uplink subframe is smoothed, and the reception quality of the uplink subframe is ensured.
  • the network device determines, in accordance with its self-interference cancellation capability on different uplink physical channels, three specific power compensation amounts in the power compensation amount set as the first power of the PUSCH, the PUCCH, and the SRS channel, respectively.
  • the amount of compensation is used to compensate for the uplink transmit power of the subframes in the full duplex subframe set on the above channel.
  • the power compensation amount set is ⁇ 1, 2, 3, 5 ⁇ dB
  • the network device selects 1 dB as the first power compensation amount of the PUSCH
  • 2 dB is the first power compensation amount of the PUCCH
  • 5 dB is the first power compensation amount of the SRS.
  • the network device determines three specific power compensation amounts as the second power compensation amount of the PUSCH, PUCCH, and SRS channels for compensating for the uplink transmit power of the subframes in the non-full duplex subframe set on the above channel.
  • the power compensation amount set is ⁇ 1, 2, 3, 5 ⁇ dB
  • the network device selects not to perform power compensation on the subframe in the non-full duplex subframe set of the PUSCH, that is, the second power compensation amount of the PUSCH is 0.
  • 1 dB is selected as the second power compensation amount of the PUCCH
  • 3 dB is selected as the second power compensation amount of the SRS in the power compensation amount set.
  • the network device sends a power compensation amount through the system information block SIB.
  • the first power compensation amount is configured by a cell level parameter, that is, the first power compensation amount information is included in the SIB.
  • the second power compensation amount is also configured by a cell level parameter, that is, the second power compensation amount information may also be included in the SIB.
  • the second power compensation amount is zero, that is, the transmit power of the subframe in the second subframe set may not be power compensated, and the first power compensation amount information may be included in the SIB.
  • the first power compensation amount information and the second power compensation amount information may also be included.
  • the power compensation amount information used for calculating the uplink transmit power includes: power compensation amount information used to calculate a physical uplink shared channel PUSCH transmit power, and power compensation used to calculate a physical uplink control channel PUCCH transmit power. At least one of the quantity information and the power compensation amount information for calculating the sounding of the sounding reference signal SRS. It can be understood that the embodiments of the solution provided by the present application can also be applied to other uplink physical channels, and are not limited to the channel types mentioned above.
  • the SIB includes a first power compensation amount information, a first power compensation amount indicating a PUSCH transmission power, a first power compensation amount of a PUCCH transmission power, and a first power compensation amount of the SRS transmission power.
  • One or more first power compensation amounts are included in the SIB.
  • the SIB includes three first power compensation amount information indicating a first power compensation amount of the PUSCH transmission power, a first power compensation amount of the PUCCH transmission power, and the SRS transmission power, respectively.
  • the first amount of power compensation is the first amount of power compensation.
  • the SIB includes two first power compensation amount information, indicating a first power compensation amount of the PUSCH transmission power, a first power compensation amount of the PUCCH transmission power, and the SRS transmission power, respectively. Any two first power compensation amounts of the first power compensation amount, the physical channel type corresponding to the any two first power compensation amounts is notified to the UE by the network device, for example, the network device may notify the UE to only the PUSCH channel and The subframe transmit power of the first subframe set on the PUCCH channel is power compensated, and the two first power compensation amount information included in the SIB are used to indicate the first power compensation amount of the PUSCH and the PUCCH, respectively.
  • the SIB includes two first power compensation amount information, one of which can also be used to indicate the first power compensation amount of any two of the above three physical channels, and the other is used to indicate the remaining one.
  • the first power compensation amount of the physical channel, and the specific correspondence may be notified to the UE by the network device.
  • the SIB includes a second power compensation amount information, a second power compensation amount indicating the PUSCH transmission power, a second rate compensation amount of the PUCCH transmission power, and a second second of the SRS transmission power.
  • One or more second power compensation amounts of the power compensation amount are included in the SIB.
  • the SIB includes three second power compensation amount information indicating a second power compensation amount of the PUSCH transmission power, a second power compensation amount of the PUCCH transmission power, and the SRS transmission power, respectively.
  • the second amount of power compensation It can be understood that when the second power compensation amount of the one or more physical channels is zero, the second power compensation amount information of the one or more physical channels may not be included in the SIB.
  • the SIB includes two second power compensation amount information, respectively indicating a second power compensation amount of the PUSCH transmission power, a second power compensation amount of the PUCCH transmission power, and the SRS transmission power. Any two second power compensation amounts of the second power compensation amount, the physical channel type corresponding to the any two second power compensation amounts is notified to the UE by the network device, for example, the network device may notify the UE that only the PUSCH channel and The subframe transmit power of the second subframe set on the PUCCH channel is power compensated, and the two second power compensation amount information included in the SIB are used to indicate the second power compensation amount of the PUSCH and the PUCCH, respectively.
  • the SIB includes two second power compensation amount information, one of which can also be used to indicate the second power compensation amount of any two of the above three physical channels, and the other is used to indicate the remaining one.
  • the second power compensation amount of the physical channel, the specific correspondence may be notified to the UE by the network device.
  • the first amount of power compensation is configured by cell level parameters.
  • a new SIB may be defined, where the SIB includes a cell-level parameter for configuring the first power compensation amount, and a cell-level parameter for configuring the first power compensation amount may also be added to the existing SIB.
  • Table 2 shows one possible specific design manner of the above-mentioned cell level parameter for configuring the first power compensation amount.
  • the cell level parameter includes 2 bits for indicating the most The value of the four first power compensation amounts. It can be understood that the bit length or the design manner of the cell-level parameter may also be in other forms according to specific requirements, which is not limited in this application.
  • the network device sends the power compensation amount to all the UEs in the cell through the SIB, and does not increase the signaling as the number of the UEs in the cell increases, and the transmission power of the subframe in the full-duplex subframe set is improved.
  • the uplink subframe reception quality is guaranteed without introducing excessive signaling overhead.
  • the second amount of power compensation is zero. That is, the transmit power of the subframes in the non-full-duplex subframe set may be not compensated for power, and the uplink transmit power calculation may be directly performed according to the power control method in the prior art.
  • the transmit power of the subframes in the non-full-duplex subframe set may be not compensated for power, and the uplink transmit power calculation may be directly performed according to the power control method in the prior art.
  • 3GPP 3rd Generation
  • the Partnership Project, 3rd Generation Partnership Project The power control method for the uplink power control method specified in TS36.213.
  • the first power compensation amount information and the second power compensation amount information may be included in the SIB, or only the first power compensation amount information may be included. .
  • the first power compensation amount and the second power compensation amount are both configured by a cell level parameter, and the first power compensation amount is greater than the second power compensation amount.
  • the SIB includes a cell level parameter for configuring a first power compensation amount and a cell level parameter for configuring a second power compensation amount, where a cell level parameter for configuring the first power compensation amount and a configuration for configuring
  • a specific design manner of the cell-level parameter of the second power compensation amount reference may be made to the foregoing description of the cell-level parameter for configuring the first power compensation amount, and details are not described herein again.
  • the power compensation amount set is set to ⁇ 1, 2, 3, 5 ⁇ dB as an example, and the cell-level parameter design example of Table 2 is combined.
  • Table 3 shows an example of a specific SIB message including power compensation amount information.
  • the first power compensation amount of the PUSCH, PUCCH, and SRS channels is 1 dB
  • the second power compensation amount is 0.
  • Table 4 shows another specific example of an SIB message including power compensation amount information.
  • the first power compensation amounts of the PUSCH, PUCCH, and SRS channels are 1 dB, 2 dB, and 5 dB, respectively, and the second power compensation amount is 0.
  • Table 5 shows another specific example of an SIB message including power compensation amount information.
  • the first power compensation amount of the PUSCH, PUCCH, and SRS channels is 3 dB
  • the second power compensation amount is 1 dB
  • Table 6 shows another specific example of an SIB message including power compensation amount information.
  • the first power compensation amounts of the PUSCH, PUCCH, and SRS channels are 1 dB, 2 dB, and 5 dB, respectively
  • the second power compensation amounts are respectively 0, 1 dB, 3 dB and the second power compensation amount information of the PUSCH is not included in the SIB message.
  • the SIB messages in the examples shown in Tables 3 to 6 only give examples of cells related to the power compensation amount. In a specific design, the SIB may also contain other cells, and the signal related to the power compensation amount. Yuan can also make other designs according to requirements, and this application does not limit this.
  • the user equipment receives the SIB delivered by the network device, and parses the power compensation amount information included in the SIB.
  • the user equipment calculates the transmit power of the uplink physical channel by using the power compensation amount configured by the network device.
  • the user equipment satisfies the formula when calculating the transmit power of the uplink physical channel:
  • the P(i) is the transmit power of the uplink physical channel calculated by the user equipment on the i-th subframe
  • the P max,c (i) is the user equipment in the serving cell c
  • the P ori,c (i) is the uplink physical channel calculated by the user equipment according to the power control method configured by the network device in the serving cell thereof c.
  • the transmit power on the i-th subframe, the power control method configured by the network device is different according to different communication systems. For example, in the LTE system, the power control may be performed by referring to the uplink power control method specified in 3GPP TS 36.213.
  • the ⁇ FD a first compensation amount or the second power of power compensation amount of c (i) to calculate the transmission power of the uplink physical channel, when the sub-frame belonging to the i-th subframe set full-duplex, [Delta] FD,c (i) is a first power compensation amount of the uplink physical channel, when the i-th subframe belongs to the non-full-duplex subframe set, ⁇ FD,c (i) is the uplink physical channel The second power compensation amount.
  • the user equipment does not simultaneously transmit a physical uplink control channel PUCCH on a subframe that transmits a physical uplink shared channel PUSCH, and the PUSCH transmission of the subframe in the full-duplex subframe set
  • PUCCH physical uplink control channel
  • PUSCH physical uplink shared channel
  • the P PUSCH,c (i) is the PUSCH transmit power of the user equipment in the i-th subframe of the serving cell c
  • the P CMAX,c (i) is the user equipment in the serving cell c
  • the maximum transmit power of the i subframe the M PUSCH,c (i) is the number of PUSCH resource blocks RB (Resource Block) of the user equipment on the ith subframe of the serving cell c
  • the PL c being an estimated downlink path loss of the user equipment in its serving cell c
  • the ⁇ TF,c (i) is that the user equipment adopts different modulation and coding scheme MCS (Modulation) on the i-th subframe of its serving cell c.
  • MCS Modulation
  • the f c (i) is a PUSCH transmit power adjustment amount of the user equipment
  • the ⁇ PUSCH, FD, c (i) is a PUSCH transmit power when calculating a PUSCH transmit power
  • the first power compensation amount or the second power compensation amount, when the i-th subframe belongs to the full-duplex subframe set, ⁇ PUSCH, FD, c (i) is the first power compensation amount, at the ith Subframe In said non-full duplex subframe set, ⁇ PUSCH, FD, c ( i) the amount of compensation to the second power.
  • the user equipment simultaneously transmits a physical uplink control channel PUCCH on a subframe that transmits a physical uplink shared channel PUSCH, and a PUSCH transmit power of a subframe in the full-duplex subframe set
  • the calculation of the PUSCH transmit power of the subframe in the non-full duplex subframe set satisfies the formula:
  • the physical uplink control channel PUCCH transmit power of the subframe in the full duplex subframe set and the PUCCH transmit power calculation of the subframe in the non-full duplex subframe set satisfy the formula. :
  • the P PUCCH,c (i) is the PUCCH transmit power of the user equipment in the i-th subframe of the serving cell c
  • the P CMAX,c (i) is the user equipment in the serving cell c
  • the maximum transmit power of the i subframe is a power reference value set by the network device
  • the PL c is an estimated downlink path loss of the user equipment in the serving cell c
  • the HARQ , n SR ) is a PUCCH transmit power offset set according to a channel quality indicator CQI (Channel Quality Indicator) and a number of bits of a response message carried by the PUCCH, where the ⁇ F_PUCCH (F) is configured by the network device according to the PUCCH format.
  • CQI Channel Quality Indicator
  • the ⁇ TxD (F′) being a power offset determined according to a modulation coding manner and a data type of the user equipment, where F and F′ represent formats of PUCCHs on different antenna ports, g(i) is the current PUCCH power control adjustment amount of the user equipment, and the ⁇ PUCCH, FD, c (i) is the first power compensation amount or the second power compensation amount when calculating the PUCCH transmission power, at the ith subframe belonging to the subframe set full-duplex, ⁇ PUCCH, FD, c ( i) of the When the first power compensation amount, the sub-frame belonging to the i-th subframe set non-full-duplex, ⁇ PUCCH, FD, c ( i) the amount of compensation to the second power.
  • the sounding reference signal SRS transmission power of the subframe in the full-duplex subframe set and the SRS transmission power of the subframe in the non-full-duplex subframe set are calculated.
  • the P SRS,c (i) is the SRS transmit power of the user equipment in the i-th subframe of the serving cell c
  • the P CMAX,c (i) is the user equipment in the serving cell c the maximum transmit power of the subframe i
  • the user equipment transmits the physical uplink control channel PUCCH when the subframes of the physical uplink shared channel PUSCH are different, and the power headroom reported by the user equipment satisfies the formula:
  • the PH types 1, c (i) and PH type 2 (i) are power headrooms reported by the user equipment under different defined rules.
  • the user equipment simultaneously transmits the physical uplink control channel PUCCH on the subframe in which the physical uplink shared channel PUSCH is transmitted, and the power headroom reported by the user equipment satisfies the formula:
  • the PH types 1, c (i) and PH type 2 (i) are power headrooms reported by user equipments under different defined rules, The maximum transmit power of the user equipment is assumed to be transmitted only when the PUSCH is transmitted in the i-th subframe.
  • the power headroom reported by the user equipment satisfies the formula:
  • the PH type1, c (i) and PH type2 (i) reported by a user equipment in different power headroom definition rule the The maximum transmit power of the user equipment is assumed to be transmitted only when the PUSCH is transmitted in the i-th subframe.
  • the user equipment transmits data on the subframe using uplink transmit power compensated by transmit power.
  • the network device or the user equipment includes corresponding hardware structures and/or software modules for performing the respective functions in order to implement the above functions.
  • the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.
  • FIG. 5 is a schematic diagram showing a possible structure of a network device involved in the foregoing embodiment.
  • a receiver is included in the structure of the network device.
  • a transmitter is also included in the structure of the network device.
  • a processor is also included in the structure of the network device.
  • an interface unit may be included in the structure of the network device for supporting communication with other network devices, such as communication with a core network node.
  • the structure of the network device involved in the present application includes a transmitter 501, a receiver 502, a processor 503, and a memory 504.
  • the transmitter 501 and the receiver 502 are configured to support transmission and reception of information between the network device and the UE in the foregoing embodiment, and support radio communication between the UE and other UEs.
  • the processor 503 performs various functions for communicating with the UE. On the downlink, traffic data and signaling messages are processed by processor 503 and adjusted by transmitter 501 to generate downlink signals for transmission to the UE via the antenna. On the uplink, the uplink signal from the UE is received via the antenna, adjusted by the receiver 502, and further processed by the processor 503 to recover the traffic data and signaling information transmitted by the UE.
  • the processor 503 also performs the processing procedures related to the network device in FIG. 3 and FIG. 4 and/or Or other processes for the techniques described herein.
  • the memory 504 is used to store program codes and data of the network device.
  • Figure 5 only shows a simplified design of the network device.
  • the network device may include any number of transmitters, receivers, processors, controllers, memories, etc., and all network devices that can implement the present application are within the scope of the present application.
  • Fig. 6 shows a simplified schematic diagram of one possible design structure of the UE involved in the above embodiment.
  • the structure of the user equipment includes a processor and a transmitter.
  • the user equipment also includes a receiver.
  • the structure of the user equipment involved in the present application includes a transmitter 601, a receiver 602, a processor 603, and a memory 604.
  • the transmitter 601 conditions (eg, analog conversion, filtering, amplifying, upconverting, etc.) output samples and generates an uplink signal that is transmitted via an antenna to the network described in the above embodiments. device.
  • the antenna receives the downlink signal transmitted by the network device in the above embodiment.
  • Receiver 602 conditions (eg, filters, amplifies, downconverts, digitizes, etc.) the signals received from the antenna and provides input samples.
  • the traffic data and signaling messages are processed (e.g., formatted, encoded, and interleaved). These units are processed according to the radio access technology employed by the radio access network (e.g., access technologies of LTE and other evolved systems).
  • the processor 603 is further configured to perform control and management on the action of the UE, and is used to perform processing performed by the UE in the foregoing embodiment, for example, to control the UE to receive downlink information, and/or to perform the present application according to the received downlink information. Other processes described by the technology. As an example, the processor 603 is configured to support the UE in performing the processes related to the UE in FIGS. 3 and 4 and/or other processes for the techniques described herein.
  • Memory 604 is used to store program code and data for the UE.
  • the steps of a method or algorithm described in connection with the present disclosure may be implemented in a hardware or may be implemented by a processor executing software instructions.
  • the software instructions may be comprised of corresponding software modules that may be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable hard disk, CD-ROM, or any other form of storage well known in the art.
  • An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and the storage medium can be located in an ASIC. Additionally, the ASIC can be located in the user equipment.
  • the processor and the storage medium may also reside as discrete components in the user equipment.
  • the functions described herein can be implemented in hardware, software, firmware, or any combination thereof.
  • the functions may be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a general purpose or special purpose computer.

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Abstract

本发明涉及无线通信领域，尤其涉及无线通信系统中的发射功率控制技术。在一种发射功率控制方法中，用户设备采用不同的功率补偿量对不同的子帧集合中的子帧进行发射功率补偿，并采用进行过所述发射功率补偿的上行发射功率在所述子帧上发送数据。通过本申请提供的方案，可以保证全双工技术应用时每个上行子帧的信噪比平滑，进而保证上行子帧的接收性能，同时又不引入过大的信令开销。

Description

一种功率控制方法及设备
本发明要求2016年04月06日递交的发明名称为“一种功率控制方法及设备”的申请号201610209180.3的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及无线通信领域，尤其涉及无线通信系统中的发射功率控制技术。
背景技术
现有无线通信网络中通常使用频分双工FDD(Frequency Division Duplex)或时分双工TDD(Time Division Duplex)方式来避免发射机和接收机之间的干扰。如果将收发信号工作在同一时间同一频带上，就是全双工技术。全双工应用到无线传输是近年来的研究热点，蜂窝系统引入全双工技术，可以带来频谱效率提升，资源调度自由度增大等优势。全双工技术应用到无线通信网络需要解决全双工设备的自干扰问题，因同时同频收发，全双工收发机上的发射信号会对接收信号造成很大的干扰。自干扰消除设备复杂度高，实现困难，一般全双工系统中网络设备是全双工设备，而用户设备UE(User Equipment)是传统半双工设备。
在现有无线通信网络中应用全双工技术，例如在LTE(Long Term Evolution，长期演进)/LTE-A(Long Term Evolution-Advanced)网络中，因不同的TDD UE会采用不同的子帧配比方式，就会出现在某些子帧上网络设备只进行上行接收，在某些子帧上网络设备需要同时进行上行接收和下行发送的情况。在功率控制策略上，现有技术中对上述情况通常不做区分，全双工子帧可以与其他子帧采用完全相同的功率控制，此时全双工子帧会因为自干扰问题导致网络设备接收信噪比低于预期；或者，全双工子帧可以由网络设备配置区别于其他子帧的另一套功率控制参数，进行独立的子帧级别的功率控制，当UE数量增加，采用独立功率控制参数的子帧数量就随之增加，导致信令开销大幅增加，影响网络性能。故此，需要有一种功率控制方法对UE进行功率控制，保证全双工技术应用时每个上行子帧的信噪比平滑，从而保证上行子帧的接收性能，同时不显著增加信令开销。
发明内容
本文描述了一种发射功率控制方法，装置和系统，以期保证全双工技术应用时每个上行子帧的信噪比平滑以及上行子帧的接收性能，同时不显著增加信令开销。
一方面，本申请的实施例提供一种发射功率控制方法。方法包括用户设备采用小区级的第一功率补偿量对第一子帧集合中的子帧进行发射功率补偿；用户设备采用进行过所述发射功率补偿的上行发射功率在所述子帧上发送数据。将系统中的子帧划分成不同的集合，对不同的子帧集合中的子帧进行不同的发射功率补偿，可以根据子帧的具体情况更加灵活的调整其发射功率，使得不同类型的子帧都可以满足接收信噪比的要求，而无需对不同类型的子帧进行独立的功率控制。可以理解的，所述小区级的第一功率补偿量可以是网络设备与用户设备预先约定的，也可以是网络设备通过小区级参数下发给用户设备的。采用小区级的功率补偿值对小区内所有UE的第一子帧集合的子帧进行发射功率补偿，可以在提升第一子帧集合的子帧发射功率的同时简化功率控制，尤其在通过参数下发第一功率补偿量的情况下，采用小 区级的第一功率补偿量可以显著减少信令开销。
在一个可能的设计中，在用户设备采用小区级的第一功率补偿量对第一子帧集合中的子帧进行发射功率补偿之前，UE接收网络设备发送的包含所述第一功率补偿量信息的小区级消息。可选的，所述小区级消息为系统信息块SIB(System Information Block)。采用小区级参数配置所述第一功率补偿量，网络设备通过SIB将所述第一功率补偿量下发给小区内的所有UE，不会随着小区UE数的增多而增加信令，既可以实现第一子帧集合中的子帧的发射功率的提升，可以保证上行子帧接收质量，又不会引入过大的信令开销。
在一个可能的设计中，用户设备采用小区级的第二功率补偿量对第二子帧集合中的子帧进行发射功率补偿，所述第一功率补偿量大于所述第二功率补偿量。UE可以根据具体情况对第二子帧集合中的子帧进行发射功率补偿，保证第二子帧集合中的子帧的上行接收质量，在第一功率补偿量大于第二功率补偿量的情况下可以实现第一子帧集合中的子帧进行更多的发射功率补偿，从而保证不同子帧集合中的子帧的上行接收信噪比平滑。
在一个可能的设计中，所述第一子帧集合为全双工子帧集合，所述第二子帧集合为非全双工子帧集合，其中，所述全双工子帧集合中的子帧为网络设备接收此类子帧上的数据的同时在所述子帧的相同频段也进行下行数据发送的子帧，所述非全双工子帧集合中的子帧为网络设备接收此类子帧上的数据的同时在所述子帧的相同频段不进行下行数据发送的子帧。全双工子帧集合中的子帧会受到网络设备下行发射信号的干扰，导致网络设备上行接收噪声增加，如果UE使用与非全双工子帧集合中子帧相同的功率控制方法计算发射功率进行发射，则会导致网络设备的接收信噪比低于预期。通过设置不同的第一功率补偿量和第二功率补偿量，可以针对全双工子帧集合中的子帧提升UE的发射功率，保证网络设备接收信噪比符合预期，从而保证全双工技术应用时每个上行子帧的信噪比平滑，进而保证了上行子帧的接收性能。可以理解的是，所述第一子帧集合与第二子帧集合还可以根据具体情况做其他的划分，并不仅限于全双工子帧集合和非全双工子帧集合的划分方式，本申请对此不做限定。
在一个可能的设计中，所述第二功率补偿量为零。即可以不对第二子帧集合中的子帧的发射功率进行功率补偿，直接按照网络设备配置的功率控制方法进行上行发射功率计算，此时所述小区级消息中可以包含所述第一功率补偿量信息和所述第二功率补偿量信息，也可以仅包含所述第一功率补偿量信息以便简化小区级消息节省信令开销。所述网络设备配置的功率控制方法根据不同的通信系统有所不同，例如在LTE系统中，可以参考3GPP(3rd Generation Partnership Project，第三代合作伙伴计划)TS 36.213所规定的上行功率控制方法进行功率控制。
在一个可能的设计中，所述小区级消息中包含所述第一功率补偿量和所述第二功率补偿量信息。小区级消息消息中包含所述第一功率补偿量信息以及所述第二功率补偿量信息，可以更加灵活的对第二功率补偿量进行配置，且不会随着小区UE数的增多而增加信令，在所述第一功率补偿量大于所述第二功率补偿量的情况下，即实现了第一子帧集合中的子帧的发射功率的提升，保证了上行子帧接收质量，又不会引入过大的信令开销。
在一个可能的设计中，所述小区级消息包含一个第一功率补偿量信息，指示物理上行共享信道发射功率的第一功率补偿量、物理上行控制信道发射功率的第一功率补偿量以及探测参考信号发射功率的第一功率补偿量中的至少一个。其中，所述物理上行共享信道主要用于承载应用数据，也可以承载上行控制信息、无线资源控制信令等内容，例如，PUSCH(Physical Uplink Shared CHannel)以及随着网络演变而定义的其他具有上述功能的上行信道；所述物理上行控制信道主要用于承载上行控制信息，例如，PUCCH(Physical Uplink Control CHannel) 以及随着网络演变而定义的其他具有上述功能的上行信道；所述探测参考信号用于估计或测量上行信道质量，例如SRS(Sounding Reference Signal)以及随着网络演变而定义的其他具有上述功能的参考信号。物理上行共享信道、物理上行控制信道、探测参考信号等上行物理信道都可以应用所述上行发射功率的第一功率补偿量，提升第一子帧集合中的子帧的上行发射功率，以保证信道上的上行子帧的信噪比平滑进而保证上行子帧的接收质量。可以通过小区级消息中的一个第一功率补偿量信息指示上述物理信道中的一个或者多个信道的第一功率补偿量，对于不同的上行物理信道，可以采用相同的第一功率补偿量，既可以保证不同上行物理信道上的上行子帧接收质量，又可以节省小区级消息比特数。
在另一个可能的设计中，所述小区级消息包含三个第一功率补偿量信息，分别指示物理上行共享信道发射功率的第一功率补偿量、物理上行控制信道发射功率的第一功率补偿量以及探测参考信道发射功率的第一功率补偿量。其中，所述物理上行共享信道主要用于承载应用数据，也可以承载上行控制信息、无线资源控制信令等内容，例如，PUSCH(Physical Uplink Shared CHannel)以及随着网络演变而定义的其他具有上述功能的上行信道；所述物理上行控制信道主要用于承载上行控制信息，例如，PUCCH(Physical Uplink Control CHannel)以及随着网络演变而定义的其他具有上述功能的上行信道；所述探测参考信号用于估计或测量上行信道质量，例如SRS(Sounding Reference Signal)以及随着网络演变而定义的其他具有上述功能的参考信号。小区级消息中包含三个第一功率补偿量信息，可以对于不同的上行物理信道采用不同的第一功率补偿量，更加灵活的保证不同上行物理信道上的上行子帧接收质量。
另一方面，本申请实施例提供了一种发射功率控制方法。方法包括网络设备接收所述用户设备采用小区级的第一功率补偿量进行发射功率补偿后发送的第一子帧集合中的子帧上的数据。
在一个可能的设计中，在网络设备接收所述用户设备采用小区级的第一功率补偿量进行发射功率补偿后发送的第一子帧集合中的子帧上的数据之前，所述方法还包括：网络设备向用户设备发送包含所述第一功率补偿量信息的小区级消息。可选的，所述小区级消息为系统信息块SIB(System Information Block)。
在一个可能的设计中，所述网络设备从功率补偿量集合中选取所述第一功率补偿量。其中，功率补偿量集合为包含了一个或多于一个的功率补偿量的集合。定义功率补偿量集合可以为自干扰消除能力不同的网络设备提供更多的功率补偿量选择，也可以让网络设备在不同的干扰场景下或者针对不同的物理信道选择不同的功率补偿量，同时还可以简化用于发送功率补偿量信息的小区级消息。
在一个可能的设计中，网络设备可以根据其自干扰消除能力，从功率补偿量集合中选取所述功率补偿量。
在另一个可能的设计中，网络设备也可以随机的从功率补偿量集合中选取所述功率补偿量。
在一个可能的设计中，网络设备接收所述用户设备采用小区级的第二功率补偿量进行发射功率补偿后发送的第二子帧集合中的子帧上的数据，所述第一功率补偿量大于所述第二功率补偿量。
在一个可能的设计中，所述第一子帧集合为全双工子帧集合，所述第二子帧集合为非全双工子帧集合，其中，所述全双工子帧集合中的子帧为网络设备接收此类子帧上的数据的同时在所述子帧的相同频段也进行下行数据发送的子帧，所述非全双工子帧集合中的子帧为网 络设备接收此类子帧上的数据的同时在所述子帧的相同频段不进行下行数据发送的子帧。
在一个可能的设计中，所述第二功率补偿量为零。可以不对第二子帧集合中的子帧的发射功率进行功率补偿，直接按照现有技术中的功率控制策略进行上行发射功率计算，此时所述小区级消息中可以包含所述第一功率补偿量信息和所述第二功率补偿量信息，也可以仅包含所述第一功率补偿量信息以便简化小区级消息节省信令开销。
在一个可能的设计中，所述小区级消息中包含所述第一功率补偿量和所述第二功率补偿量信息。
在一个可能的设计中，所述小区级消息包含一个第一功率补偿量信息，指示物理上行共享信道发射功率的第一功率补偿量、物理上行控制信道发射功率的第一功率补偿量以及探测参考信号发射功率的第一功率补偿量中的至少一个。其中，所述物理上行共享信道主要用于承载应用数据，也可以承载上行控制信息、无线资源控制信令等内容，例如，PUSCH(Physical Uplink Shared CHannel)以及随着网络演变而定义的其他具有上述功能的上行信道；所述物理上行控制信道主要用于承载上行控制信息，例如，PUCCH(Physical Uplink Control CHannel)以及随着网络演变而定义的其他具有上述功能的上行信道；所述探测参考信号用于估计或测量上行信道质量，例如SRS(Sounding Reference Signal)以及随着网络演变而定义的其他具有上述功能的参考信号。对于不同的上行物理信道，可以采用相同的第一功率补偿量，既可以保证不同上行物理信道上的上行子帧接收质量，又可以节省小区级消息比特数。
在一个可能的设计中，所述小区级消息包含三个第一功率补偿量信息，分别指示物理上行共享信道发射功率的第一功率补偿量、物理上行控制信道发射功率的第一功率补偿量以及探测参考信号发射功率的第一功率补偿量。其中，所述物理上行共享信道主要用于承载应用数据，也可以承载上行控制信息、无线资源控制信令等内容，例如，PUSCH(Physical Uplink Shared CHannel)以及随着网络演变而定义的其他具有上述功能的上行信道；所述物理上行控制信道主要用于承载上行控制信息，例如，PUCCH(Physical Uplink Control CHannel)以及随着网络演变而定义的其他具有上述功能的上行信道；所述探测参考信号用于估计或测量上行信道质量，例如SRS(Sounding Reference Signal)以及随着网络演变而定义的其他具有上述功能的参考信号。小区级消息中包含三个第一功率补偿量信息，可以对于不同的上行物理信道采用不同的第一功率补偿量，更加灵活的保证不同上行物理信道上的上行子帧接收质量。
结合上述两个方面任一方法的部分或全部步骤，在一些可能的设计中，用户设备在计算上行物理信道的发射功率时，满足公式：
Figure PCTCN2017077528-appb-000001
其中，所述P(i)为所述用户设备计算的所述上行物理信道在第i子帧上的发射功率(即经过所述发射功率补偿后的发射功率)，所述Pmax,c(i)为所述用户设备在其服务小区c第i子帧上在所述上行物理信道上的最大发射功率，所述Pori,c(i)为所述用户设备根据网络设备配置的功率控制方法所计算的所述上行物理信道在其服务小区c第i子帧上的发射功率，所述网络设备配置的功率控制方法根据不同的通信系统有所不同，例如在LTE系统中，可以参考3GPP TS 36.213所规定的上行功率控制方法进行功率控制。所述ΔFD,c(i)为计算所述上行物理信道的发射功率时的第一功率补偿量或者第二功率补偿量，当第i子帧属于所述第一子帧集合时， ΔFD,c(i)为所述上行物理信道的第一功率补偿量，当第i子帧属于所述第二子帧集合时，ΔFD,c(i)为所述上行物理信道的第二功率补偿量。
结合上述两个方面任一方法的部分或全部步骤，在一些可能的设计中，用户设备采用上述经过发射功率补偿后的上行发射功率进行功率余量(Power Headroom)的计算。
又一方面，本申请实施例提供了一种用户设备，该用户设备具有实现上述方法实际中用户设备行为的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。
在一个可能的设计中，用户设备的结构中包括处理器和发射器。在一个可能的设计中，用户设备还包括接收器。所述处理器被配置为支持用户设备执行上述方法中相应的功能，所述发射器用于支持用户设备向网络设备发送上述方法中所涉及的信息或者数据，所述接收器用于支持用户设备接收上述方法中所涉及的网络设备发送的信息或者数据。所述用户设备还可以包括存储器，所述存储器用于与处理器耦合，保存用户设备必要的程序指令和数据。
又一方面，本申请实施例提供了一种网络设备，该网络设备具有实现上述方法实际中网络设备行为的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。
在一个可能的设计中，网络设备的结构中包括接收器。在一个可能的设计中，网络设备的结构中还包括发射器。在一个可能的设计中，网络设备的结构中还包括处理器。所述处理器被配置为支持网络设备执行上述方法中相应的功能。所述发射器和接收器用于支持网络设备与用户设备之间的通信，所述发射器用于向用户设备发送上述方法中所涉及的信息或者数据，所述接收器用于支持网络设备接收上述方法中所涉及的用户设备发送的信息或者数据。所述网络设备还可以包括存储器，所述存储器用于与处理器耦合，保存网络设备必要的程序指令和数据。所述网络设备的结构中还可以包括接口单元，用于支持与其他网络设备之间的通信，如与核心网节点之间的通信。
又一方面，本申请实施例提供了一种通信系统，该系统包括上述方面所述的网络设备和用户设备。
再一方面，本申请实施例提供了一种计算机存储介质，用于储存为上述用户设备所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
再一方面，本申请实施例提供了一种计算机存储介质，用于储存为上述网络设备所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
相较于现有技术，本申请提供的方案考虑了全双工网络设备自干扰问题对上行子帧接收性能的影响，对不同子帧集合中的子帧采用不同的功率补偿量，以期保证每个上行子帧的信噪比平滑，进而保证上行子帧的接收性能，采用小区级参数配置功率补偿量，可以在保证上行子帧接收性能的同时不会造成信令信道的开销过大。
附图说明
下面将参照所示附图对本申请实施例进行更详细的描述。
图1为本申请的一种可能的应用场景示意图；
图2为本申请所涉及的一种可能的无线通信系统中的全双工原理示意图；
图3为本申请实施例提供的一种发射功率控制方法的流程示意图；
图4为本申请实施例提供的另一种发射功率控制方法的流程示意图；
图5为本申请实施例提供的一种网络设备结构示意图；
图6为本申请实施例提供的一种用户设备结构示意图。
具体实施方式
本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
本申请描述的技术可以适用于长期演进(Long Term Evolution，LTE)系统以及后续的演进系统如第五代移动通信(the 5th Generation mobile communication，5G)等，或其他采用各种无线接入技术的无线通信系统，如采用码分多址，频分多址，时分多址，正交频分多址，单载波频分多址等接入技术的系统，尤其适用于应用全双工技术进行通信的无线通信系统。如图1所示，是本申请实施例提供的一种通信系统的简化的网络架构图。UE(User Equipment，用户设备)通过无线接口接入网络设备进行通信，也可以与另一用户设备进行通信，如D2D(Device to Device，设备对设备)或M2M(Machine to Machine，机器对机器)场景下的通信。网络设备可以与用户设备通信，也可以与另一网络设备进行通信，如宏基站和接入点之间的通信。
本申请中，名词“网络”和“系统”经常交替使用，但本领域的技术人员可以理解其含义。本申请所涉及到的用户设备可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备、控制设备或连接到无线调制解调器的其它处理设备，以及各种形式的用户设备(User Equipment，UE)、移动台(Mobile station，MS)、终端(Terminal)或终端设备(Terminal Equipment)等。为方便描述，本申请中，上面提到的设备统称为用户设备或UE。本申请所涉及到的网络设备包括基站(Base Station，BS)、网络控制器或移动交换中心等，其中通过无线信道与用户设备进行直接通信的装置通常是基站，所述基站可以包括各种形式的宏基站、微基站、中继站、接入点或射频拉远单元(Remote Radio Unit，RRU)等，当然，与用户设备进行无线通信的也可以是其他具有无线通信功能的网络设备，本申请对此不做唯一限定。在采用不同的无线接入技术的系统中，具备基站功能的设备的名称可能会有所不同，例如在LTE网络中，称为演进的节点B(evolved NodeB，eNB或eNodeB)，在第三代3G网络中，称为节点B(Node B)等。
下面结合图2，以LTE网络为例，对网络设备采用全双工技术进行通信的无线通信系统技术原理进行说明。如图2(a)所示，在基于FDD(Frequency Division Duplex，频分双工)的系统中应用全双工技术，高层可以配置在部分子帧上使用全双工传输，以UE1为例的部分UE使用频带f1进行上行传输，使用频带f2进行下行传输，以UE2为例的部分UE使用频带f1进行下行传输，使用频带f2进行上行传输，eNB在频带f1和f2上均进行同时收发(即应用全双工技术)，对于eNB来说，eNB给UE1的下行发射信号就会对eNB接收UE2的上行发射信号产生同频干扰，同理eNB给UE2的下行发射信号也会对eNB接收UE1的上行发射信号产生同频干扰，上述两类干扰即为全双工技术应用中的自干扰问题。如图2(b)所示，在基于TDD(Time Division Duplex，时分双工)的系统中应用全双工技术，高层可以为不同的UE配置不同的子帧配比方式，这样就会出现在某些相同的子帧或者时隙上既有UE进行上行发射也有UE进行下行接收的情况，如图2(b)中的示例所示，因为所使用的子帧配比方式不同， 在时隙n上UE1进行上行发射，UE2进行下行接收，此时对于eNB来说，eNB给UE2的下行发射信号就会对eNB接收UE1的上行发射信号产生同频干扰，即全双工技术应用中的自干扰问题。可以理解的是，当在某些子帧eNB未采用全双工技术时，eNB接收UE上行传输时不会有自干扰，当eNB采用全双工技术时，eNB的上行接收会受到自干扰的影响，也即eNB采用全双工技术和未采用全双工技术时的上行干扰程度不一样。
通过本申请实施例提供的方案，可以根据当前子帧是否采用了全双工技术对UE的上行发射功率进行补偿，旨在保证全双工技术应用时每个上行子帧的信噪比平滑以及上行子帧的接收性能，同时不显著增加信令开销。下文将基于上面所述的本申请涉及的共性方面，对本申请实施例做进一步详细说明。
图3为本申请实施例提供的一种发射功率控制方法的流程示意图。
在301部分，用户设备采用小区级的第一功率补偿量对第一子帧集合中的子帧进行发射功率补偿。所述第一子帧集合可以根据系统中的具体需求对子帧进行划分，本申请对此不做限定，例如，在引入全双工技术的LTE系统中，第一子帧集合可以是所有应用全双工技术的子帧的集合。所述对第一子帧集合中的子帧进行发射功率补偿，是指在计算所述子帧上发射的上行物理信道的发射功率时，补偿所述第一功率补偿量。采用小区级的第一功率补偿量进行发射功率补偿，是指小区内的所有用户设备均采用相同的第一功率补偿量在第一子帧集合中的子帧上对相应的上行物理信道进行发射功率补偿。可以理解的是，随着无线通信技术的发展，计算发射功率的最小时间单位可能缩小至符号或者更短的时间周期，此时本申请所提供的实施例仍然可以应用，例如当计算发射功率的最小时间单位为符号时，用户设备采用小区级的第一功率补偿量对第一符号集合中的符号进行发射功率补偿。
在一个示例中，用户设备获取小区级的第一功率补偿量。所述第一功率补偿量可以是网络设备与用户设备预先约定的，也可以是网络设备通过小区级参数下发给小区内的所有用户设备的。例如，用户设备接收网络设备发送的包含所述第一功率补偿量信息的小区级消息，例如系统信息块SIB(System Information Block)。在一个具体的示例中，所述SIB包含一个第一功率补偿量信息，指示物理上行共享信道(例如PUSCH(Physical Uplink Shared CHannel))发射功率的第一功率补偿量、物理上行控制信道(例如PUCCH(Physical Uplink Control CHannel))发射功率的第一功率补偿量以及探测参考信号(例如SRS(Sounding Reference Signal))发射功率的第一功率补偿量中的至少一个。在另一个具体的示例中，所述SIB包含三个第一功率补偿量信息，分别指示物理上行共享信道(例如PUSCH)发射功率的第一功率补偿量、物理上行控制信道(例如PUCCH)发射功率的第一功率补偿量以及探测参考信号(例如SRS)发射功率的第一功率补偿量。可以理解的是，本申请所提供的方案的实施例还可以应用于其他的上行物理信道，并不局限于上述所提及的信道类型。
在另一个示例中，用户设备还可以采用小区级的第二功率补偿量对第二子帧集合中的子帧进行发射功率补偿。所述第二功率补偿量可以是网络设备与用户设备预先约定的，例如第二功率补偿量为零；也可以是网络设备通过小区级参数下发给小区内的所有用户设备的，例如在SIB中包含所述第二功率补偿量信息。
用户设备可以对在第一子帧集合中的子帧上发射的不同的上行物理信道进行发射功率补偿，例如对PUSCH、PUCCH以及SRS中的一个或者多个信道进行发射功率补偿，在对多个上行物理信道进行发射功率补偿时，所使用的第一功率补偿量可以相同或者不同，所使用的第二功率补偿量也可以相同或者不同。
在一个示例中，用户设备在计算上行物理信道的发射功率时，满足公式：
Figure PCTCN2017077528-appb-000002
其中，所述P(i)为所述用户设备计算的所述上行物理信道在第i子帧上的发射功率，所述Pmax,c(i)为所述用户设备在其服务小区c第i子帧上在所述上行物理信道上的最大发射功率，所述Pori,c(i)为所述用户设备根据网络设备配置的功率控制方法所计算的所述上行物理信道在其服务小区c第i子帧上的发射功率，所述网络设备配置的功率控制方法根据不同的通信系统有所不同，例如在LTE系统中，可以参考3GPP TS 36.213所规定的上行功率控制方法进行功率控制。所述ΔFD,c(i)为计算所述上行物理信道的发射功率时的第一功率补偿量或者第二功率补偿量，当第i子帧属于所述第一子帧集合时，ΔFD,c(i)为所述上行物理信道的第一功率补偿量，当第i子帧属于所述第二子帧集合时，ΔFD,c(i)为所述上行物理信道的第二功率补偿量。
在一个示例中，所述第一子帧集合为全双工子帧集合，所述第二子帧集合为非全双工子帧集合，其中，所述全双工子帧集合中的子帧为网络设备接收此类子帧上的数据的同时在所述子帧的相同频段也进行下行数据发送的子帧，所述非全双工子帧集合中的子帧为网络设备接收此类子帧上的数据的同时在所述子帧的相同频段不进行下行数据发送的子帧。
在302部分，用户设备采用进行过所述发射功率补偿的上行发射功率在所述子帧上发送数据。需要说明的是，所述数据包括承载在物理上行共享信道(例如PUSCH)、物理上行控制信道(例如PUCCH)或者探测参考信号(例如SRS)信道上的业务信息、控制信令或者参考信号等数据，或者是承载在其他上行物理信道上的任意类型的信息，本申请对此不做限定。
下面将结合附图4，对本申请的实施例做进一步说明。
图4为本申请实施例提供的另一种功率控制方法的流程示意图。
在401部分，网络设备将UE进行配对，为配对UE使用全双工技术。
在一个示例中，UE可以根据UE间发送的干扰探测信号，测得UE间的干扰程度并上报给网络设备，网络设备根据UE间相互干扰的程度，将相互之间干扰较小的UE进行配对，并为配对UE使用全双工技术。以LTE TDD系统为例，eNB将相互之间干扰较小的UE1和UE2进行配对，其中UE1使用子帧配比0，UE2使用子帧配比5，如表1所示，在子帧3、4、6、7、8、9上UE1进行上行传输而UE2进行下行传输，则eNB在子帧3、4、6、7、8、9(即全双工子帧集)需要使用全双工传输，在剩余子帧(即非全双工子帧集)上UE1和UE2的传输方向相同，eNB不采用全双工技术。其中，所述全双工子帧集合中的子帧为网络设备接收此类子帧的同时在所述子帧上的数据的相同频段也进行下行数据发送的子帧，所述非全双工子帧集合中的子帧为网络设备接收此类子帧上的数据的同时在所述子帧的相同频段不进行下行数据发送的子帧。
表1 LTE TDD系统中配对UE的子帧配比使用示例
Figure PCTCN2017077528-appb-000003
Figure PCTCN2017077528-appb-000004
在402部分，网络设备通过无线资源控制RRC(Radio Resource Control)信令通知UE属于全双工子帧集合的子帧。
在一个示例中，网络设备通过RRC信令发送UE级别的指示全双工子帧集合中的子帧位置的比特图(bitmap)。例如0001101111(1表示全双工子帧，0表示非全双工子帧)：表示1个无线帧中，子帧3、4、6、7、8、9为全双工子帧集合中的子帧，其他子帧为非全双工子帧集合中的子帧。
在403部分，网络设备确定用于计算上行发射功率的功率补偿量。
在一个示例中，网络设备从功率补偿量集合中选取用于计算上行发射功率的功率补偿量。例如，网络设备可以根据其自干扰消除能力从功率补偿量集合中选取用于计算上行发射功率的功率补偿量，也可以随机在功率补偿量集合中选择功率补偿量。定义功率补偿量集合可以为自干扰消除能力不同的网络设备提供更多的功率补偿量选择，也可以让网络设备在不同的干扰场景下或者针对不同的物理信道选择不同的功率补偿量，同时还可以简化用于发送功率补偿量信息的小区级消息。
在一个示例中，用于计算上行发射功率的功率补偿量，包括PUSCH(Physical Uplink Shared CHannel)发射功率的功率补偿量，和PUCCH(Physical Uplink Control CHannel)发射功率的功率补偿量，以及SRS(Sounding Reference Signal)发射功率的功率补偿量。在引入全双工技术后，PUSCH、PUCCH、SRS等上行物理信道都可以应用所述上行发射功率的功率补偿量，提升全双工子帧集合中的子帧的上行发射功率，以保证该信道上的上行子帧的信噪比平滑进而保证上行子帧的接收质量。可以理解的是，本申请所提供的方案的实施例还可以应用于其他的上行物理信道，并不局限于上述所提及的信道类型。在一个示例中，网络设备确定一个第一功率补偿量，用于PUSCH、PUCCH以及SRS信道中的一个或者多个不同物理信道的第一子帧集合中的子帧发射功率的功率补偿，当所述一个第一功率补偿量用于多个不同物理信道的发射功率补偿时，所述多个不同物理信道的第一功率补偿量相等。
在另一个示例中，网络设备根据其在不同物理信道上的自干扰消除能力分别确定不同物理信道上的第一功率补偿量。
在一个示例中，所述PUSCH发射功率的第二功率补偿量、所述PUCCH发射功率的第二功率补偿量以及所述SRS发射功率的第二功率补偿量均为零。
在另一个示例中，网络设备根据具体需求确定不同物理信道上的第二功率补偿量，例如可以随机从功率补偿量集合中选取不同物理信道上的第二功率补偿量，在选取的过程中需要保证同一物理信道上的第二功率补偿量要小于其第一功率补偿量，也可以将某一个或者多个物理信道上的第二功率补偿量确定为零。
在一个具体的示例中，网络设备根据其自干扰消除能力在功率补偿量集合中确定一个具体的功率补偿量作为PUSCH、PUCCH、SRS信道的第一功率补偿量，用于补偿上述信道上全双工子帧集合中的子帧的上行发射功率。例如，功率补偿量集合为{1，2，3，5}dB，网络设备选择1dB作为上述上行物理信道的第一功率补偿量。上述上行物理信道的第二功率补偿量均为0，即在PUSCH、PUCCH、SRS信道上不对非全双工子帧集合中的子帧的上行发射功率进行补偿。
在又一个具体的示例中，网络设备根据其在不同的上行物理信道上的自干扰消除能力在功率补偿量集合中确定三个具体的功率补偿量分别作为PUSCH、PUCCH、SRS信道的第一功率 补偿量，用于补偿上述信道上全双工子帧集合中的子帧的上行发射功率。例如，功率补偿量集合为{1，2，3，5}dB，网络设备选择1dB作为PUSCH的第一功率补偿量，2dB作为PUCCH的第一功率补偿量，5dB作为SRS的第一功率补偿量。上述上行物理信道的第二功率补偿量均为0，即在PUSCH、PUCCH、SRS信道上不对非全双工子帧集合中的子帧的上行发射功率进行补偿。
在又一个具体的示例中，网络设备根据其自干扰消除能力在功率补偿量集合中确定一个具体的功率补偿量作为PUSCH、PUCCH、SRS信道的第一功率补偿量用于补偿上述信道上全双工子帧集合中的子帧的上行发射功率。例如，功率补偿量集合为{1，2，3，5}dB，网络设备选择3dB作为上述上行物理信道的第一功率补偿量。网络设备在功率补偿量集合中确定一个具体的功率补偿量作为PUSCH、PUCCH、SRS信道的第二功率补偿量用于补偿上述信道上非全双工子帧集合中的子帧的上行发射功率。例如，功率补偿量集合为{1，2，3，5}dB，网络设备选择1dB作为上述上行物理信道的第二功率补偿量。需要说明的是，因为全双工子帧集合中的子帧受到自干扰的影响而非全双工子帧集合中的子帧没有自干扰的影响，所以同一物理信道上的第一功率补偿量大于第二功率补偿量，这样可以保证上行子帧接收信噪比的平滑，进而保证上行子帧的接收质量。
在再一个具体的示例中，网络设备根据其在不同的上行物理信道上的自干扰消除能力在功率补偿量集合中确定三个具体的功率补偿量分别作为PUSCH、PUCCH、SRS信道的第一功率补偿量用于补偿上述信道上全双工子帧集合中的子帧的上行发射功率。例如，功率补偿量集合为{1，2，3，5}dB，网络设备选择1dB作为PUSCH的第一功率补偿量，2dB作为PUCCH的第一功率补偿量，5dB作为SRS的第一功率补偿量。网络设备确定三个具体的功率补偿量作为PUSCH、PUCCH、SRS信道的第二功率补偿量用于补偿上述信道上非全双工子帧集合中的子帧的上行发射功率。例如，功率补偿量集合为{1，2，3，5}dB，网络设备选择不对PUSCH的非全双工子帧集合中的子帧进行功率补偿，即PUSCH的第二功率补偿量为0，在功率补偿量集合中选择1dB作为PUCCH的第二功率补偿量，在功率补偿量集合中选择3dB作为SRS的第二功率补偿量。
在404部分，网络设备通过系统信息块SIB下发功率补偿量。
在一个示例中，所述第一功率补偿量通过小区级参数配置，即所述SIB中包含第一功率补偿量信息。
在一个示例中，所述第二功率补偿量也通过小区级参数配置，即所述SIB中还可以包含第二功率补偿量信息。
在另一个示例中，所述第二功率补偿量为零，即可以不对第二子帧集合中的子帧的发射功率进行功率补偿，此时所述SIB中可以仅包括第一功率补偿量信息，也可以包含第一个功率补偿量信息和第二功率补偿量信息。
在一个示例中，所述用于计算上行发射功率的功率补偿量信息，包括：用于计算物理上行共享信道PUSCH发射功率的功率补偿量信息、用于计算物理上行控制信道PUCCH发射功率的功率补偿量信息以及用于计算探测参考信号SRS发射功率的功率补偿量信息中的至少一个。可以理解的是，本申请所提供的方案的实施例还可以应用于其他的上行物理信道，并不局限于上述所提及的信道类型。
在一个示例中，所述SIB包含一个第一功率补偿量信息，指示PUSCH发射功率的第一功率补偿量、PUCCH发射功率的第一功率补偿量以及所述SRS发射功率的第一功率补偿量中的一个或者多个第一功率补偿量。
在另一个示例中，所述SIB包含三个第一功率补偿量信息，分别指示所述PUSCH发射功率的第一功率补偿量、所述PUCCH发射功率的第一功率补偿量以及所述SRS发射功率的第一功率补偿量。
在再一个示例中，所述SIB包含两个第一功率补偿量信息，分别指示所述PUSCH发射功率的第一功率补偿量、所述PUCCH发射功率的第一功率补偿量以及所述SRS发射功率的第一功率补偿量中的任意两个第一功率补偿量，所述任意两个第一功率补偿量所对应的物理信道类型通过网络设备通知UE，例如网络设备可以通知UE仅对PUSCH信道和PUCCH信道上的第一子帧集合的子帧发射功率进行功率补偿，SIB中包含的两个第一功率补偿量信息分别用于指示PUSCH和PUCCH的第一功率补偿量。可以理解的是，SIB包含的两个第一功率补偿量信息，其中一个也可以用于指示上述三种物理信道中的任意两种的第一功率补偿量，另一个用于指示余下的一种物理信道的第一功率补偿量，具体的对应关系可以通过网络设备通知UE。
在一个示例中，所述SIB包含一个第二功率补偿量信息，指示所述PUSCH发射功率的第二功率补偿量、所述PUCCH发射功率的第二率补偿量以及所述SRS发射功率的第二功率补偿量中的一个或者多个第二功率补偿量。
在另一个示例中，所述SIB包含三个第二功率补偿量信息，分别指示所述PUSCH发射功率的第二功率补偿量、所述PUCCH发射功率的第二功率补偿量以及所述SRS发射功率的第二功率补偿量。可以理解的是，当某一个或者多个物理信道的第二功率补偿量为零时，所述SIB中也可以不包含所述一个或者多个物理信道的第二功率补偿量信息。
在再一个示例中，所述SIB包含两个第二功率补偿量信息，分别指示所述PUSCH发射功率的第二功率补偿量、所述PUCCH发射功率的第二功率补偿量以及所述SRS发射功率的第二功率补偿量中的任意两个第二功率补偿量，所述任意两个第二功率补偿量所对应的物理信道类型通过网络设备通知UE，例如网络设备可以通知UE仅对PUSCH信道和PUCCH信道上的第二子帧集合的子帧发射功率进行功率补偿，SIB中包含的两个第二功率补偿量信息分别用于指示PUSCH和PUCCH的第二功率补偿量。可以理解的是，SIB包含的两个第二功率补偿量信息，其中一个也可以用于指示上述三种物理信道中的任意两种的第二功率补偿量，另一个用于指示余下的一种物理信道的第二功率补偿量，具体的对应关系可以通过网络设备通知UE。
在一个具体的示例中，第一功率补偿量通过小区级参数进行配置。例如，可以定义一种新的SIB，该SIB中包含用于配置第一功率补偿量的小区级参数，也可以在已有的SIB中增加用于配置第一功率补偿量的小区级参数。表2给出了上述用于配置第一功率补偿量的小区级参数的一种可能的具体的设计方式，在表2所示的示例中，所述小区级参数包含2比特，用于指示最多4种第一功率补偿量的取值。可以理解的是，所述小区级参数的比特长度或者设计方式还可以根据具体的需求存在其他形式，本申请对此不做限制。网络设备通过SIB将功率补偿量下发给小区内的所有UE，不会随着小区UE数的增多而增加信令，既实现了全双工子帧集合中的子帧的发射功率的提升，保证了上行子帧接收质量，又不会引入过大的信令开销。
表2 用于配置第一功率补偿量的小区级参数示例
小区级参数取值 第一功率补偿量取值(dB)
00 1
01 2
10 3
11 5
在一个示例中，第二功率补偿量为零。即可以不对非全双工子帧集合中的子帧的发射功率进行功率补偿，直接按照现有技术中的功率控制方法进行上行发射功率计算，例如，在LTE系统中，可以参考3GPP(3rd Generation Partnership Project，第三代合作伙伴计划)TS36.213所规定的上行功率控制方法进行功率控制。此时所述SIB中可以包含第一功率补偿量信息和第二功率补偿量信息，也可以仅包含第一功率补偿量信息。。
在另一个示例中，所述第一功率补偿量和第二功率补偿量均通过小区级参数配置，所述第一功率补偿量大于所述第二功率补偿量。此时所述SIB中包含用于配置第一功率补偿量的小区级参数和用于配置第二功率补偿量的小区级参数，其中用于配置第一功率补偿量的小区级参数和用于配置第二功率补偿量的小区级参数的具体设计方式可以参考上文中用于配置第一功率补偿量的小区级参数的示例描述，不再赘述。
同样以功率补偿量集合设置为{1，2，3，5}dB为例，结合表2的小区级参数设计示例。表3给出了一种具体的包含功率补偿量信息的SIB消息示例，此示例中PUSCH、PUCCH以及SRS信道的第一功率补偿量均为1dB，第二功率补偿量均为0。表4给出了另一种具体的包含功率补偿量信息的SIB消息示例，此示例中PUSCH、PUCCH以及SRS信道的第一功率补偿量分别为1dB，2dB，5dB，第二功率补偿量均为0。表5给出了又一种具体的包含功率补偿量信息的SIB消息示例，此示例中PUSCH、PUCCH以及SRS信道的第一功率补偿量均为3dB，第二功率补偿量均为1dB。表6给出了再一种具体的包含功率补偿量信息的SIB消息示例，此示例中PUSCH、PUCCH以及SRS信道的第一功率补偿量分别为1dB，2dB，5dB，第二功率补偿量分别为0，1dB，3dB且SIB消息中不包含PUSCH的第二功率补偿量信息。需要说明的是，表3至表6所示例的SIB消息仅给出了与功率补偿量相关的信元示例，在具体的设计中SIB还可能包含其他的信元，与功率补偿量相关的信元也可以根据需求作其他的设计，本申请对此不做限制。
表3 一种具体的包含功率补偿量的SIB消息示例
第一功率补偿量 00
表4 另一种具体的包含功率补偿量的SIB消息示例
PUSCH第一功率补偿量 00
PUCCH第一功率补偿量 01
SRS第一功率补偿量 11
表5 又一种具体的包含功率补偿量的SIB消息示例
第一功率补偿量 10
第二功率补偿量 00
表6 再一种具体的包含功率补偿量的SIB消息示例
PUSCH第一功率补偿量 00
PUCCH第一功率补偿量 01
SRS第一功率补偿量 11
PUCCH第二功率补偿量 00
SRS第二功率补偿量 10
在405部分，用户设备接收网络设备下发的SIB，解析所述SIB中包含的功率补偿量信息。
在406部分，用户设备采用网络设备配置的功率补偿量计算上行物理信道的发射功率。
在一个示例中，用户设备在计算上行物理信道的发射功率时，满足公式：
Figure PCTCN2017077528-appb-000005
其中，所述P(i)为所述用户设备计算的所述上行物理信道在第i子帧上的发射功率，所述Pmax,c(i)为所述用户设备在其服务小区c第i子帧上在所述上行物理信道上的最大发射功率，所述Pori,c(i)为所述用户设备根据网络设备配置的功率控制方法所计算的所述上行物理信道在其服务小区c第i子帧上的发射功率，所述网络设备配置的功率控制方法根据不同的通信系统有所不同，例如在LTE系统中，可以参考3GPP TS 36.213所规定的上行功率控制方法进行功率控制。所述ΔFD,c(i)为计算所述上行物理信道的发射功率时的第一功率补偿量或者第二功率补偿量，当第i子帧属于所述全双工子帧集合时，ΔFD,c(i)为所述上行物理信道的第一功率补偿量，当第i子帧属于所述非全双工子帧集合时，ΔFD,c(i)为所述上行物理信道的第二功率补偿量。
以LTE系统为例，在一个具体的示例中，用户设备在发射物理上行共享信道PUSCH的子帧上不同时发射物理上行控制信道PUCCH，所述全双工子帧集合中的子帧的PUSCH发射功率以及非全双工子帧集合中的子帧的PUSCH发射功率计算满足公式：
Figure PCTCN2017077528-appb-000006
其中，所述PPUSCH,c(i)为所述用户设备在其服务小区c第i子帧的PUSCH发射功率，所述PCMAX,c(i)为所述用户设备在其服务小区c第i子帧的最大发射功率，所述MPUSCH,c(i)为所述用户设备在其服务小区c第i子帧上的PUSCH资源块RB(Resource Block)个数，所述PO_PUSCH,c(j),j＝0,1,2为小区c的网络设备期望接收功率，所述PLc为所述用户设备在其服务小区c的下行路径损耗估计值，所述αc(j),j＝0,1,2为小区c的路径损耗补偿因子，所述ΔTF,c(i)为所述用户设备在其服务小区c第i子帧上采用不同的调制和编码方案MCS(Modulation and Coding Scheme)相对于参考MCS的功率偏置值，所述fc(i)为所述用户设备的PUSCH发射功率调整量，所述ΔPUSCH,FD,c(i)为计算PUSCH发射功率时的第一功率补偿量或者第二功率补偿量，在第i子帧属于所述全双工子帧集合时，ΔPUSCH,FD,c(i)为所述第一功率补偿量，在第i子帧属于所述非全双工子帧集合时，ΔPUSCH,FD,c(i)为所述第二功率补偿量。
以LTE系统为例，在一个具体的示例中，用户设备在发射物理上行共享信道PUSCH的子帧上同时发射物理上行控制信道PUCCH，所述全双工子帧集合中的子帧的PUSCH发射功率以及非全双工子帧集合中的子帧的PUSCH发射功率计算满足公式：
Figure PCTCN2017077528-appb-000007
其中，所述PPUSCH,c(i)为所述用户设备在其服务小区c第i子帧的PUSCH发射功率，所述
Figure PCTCN2017077528-appb-000008
为所述用户设备在其服务小区c第i子帧的最大发射功率的线性值，所述
Figure PCTCN2017077528-appb-000009
为所述用户设备在其服务小区c第i子帧的PUCCH发射功率的线性值，所述MPUSCH,c(i)为所述用户设备在其服务小区c第i子帧上的PUSCH资源块RB(Resource Block)个数，所述PO_PUSCH,c(j),j＝0,1,2为小区c的网络设备期望接收功率，所述PLc为所述用户设备在其服务小区c的下行路径损耗估计值，所述αc(j),j＝0,1,2为小区c的路径损耗补偿因子，所述ΔTF,c(i) 为所述用户设备在其服务小区c第i子帧上采用不同的调制和编码方案MCS(Modulation and Coding Scheme)相对于参考MCS的功率偏置值，所述fc(i)为所述用户设备的PUSCH发射功率调整量，所述ΔPUSCH,FD,c(i)为计算PUSCH发射功率时的第一功率补偿量或者第二功率补偿量，在第i子帧属于所述全双工子帧集合时，ΔPUSCH,FD,c(i)为所述第一功率补偿量，在第i子帧属于所述非全双工子帧集合时，ΔPUSCH,FD,c(i)为所述第二功率补偿量。
以LTE系统为例，在一个具体的示例中，全双工子帧集合中的子帧的物理上行控制信道PUCCH发射功率以及非全双工子帧集合中的子帧的PUCCH发射功率计算满足公式：
Figure PCTCN2017077528-appb-000010
其中，所述PPUCCH,c(i)为所述用户设备在其服务小区c第i子帧的PUCCH发射功率，所述PCMAX,c(i)为所述用户设备在其服务小区c第i子帧的最大发射功率，所述PO_PUCCH为网络设备设置的功率基准值，所述PLc为所述用户设备在其服务小区c的下行路径损耗估计值，所述h(nCQI,nHARQ,nSR)为根据PUCCH所承载的信道质量指示CQI(Channel Quality Indicator)和应答消息的比特数量设置的PUCCH发射功率偏移量，所述ΔF_PUCCH(F)为网络设备根据PUCCH格式配置的偏移量，所述ΔTxD(F')为根据所述用户设备的调制编码方式和数据类型所确定的功率偏移量，其中F与F′表示不同天线端口上的PUCCH的格式，所述g(i)为所述用户设备当前的PUCCH功率控制调整量，所述ΔPUCCH,FD,c(i)为计算PUCCH发射功率时的第一功率补偿量或者第二功率补偿量，在第i子帧属于所述全双工子帧集合时，ΔPUCCH,FD,c(i)为所述第一功率补偿量，在第i子帧属于所述非全双工子帧集合时，ΔPUCCH,FD,c(i)为所述第二功率补偿量。
以LTE系统为例，在一个具体的示例中，所述全双工子帧集合中的子帧的探测参考信号SRS发射功率以及非全双工子帧集合中的子帧的SRS发射功率计算满足公式：
Figure PCTCN2017077528-appb-000011
其中，所述PSRS,c(i)为所述用户设备在其服务小区c第i子帧的SRS发射功率，所述PCMAX,c(i)为所述用户设备在其服务小区c第i子帧的最大发射功率，所述PSRS_OFFSET,c(m),m＝0,1为所述网络设备高层配置的功率偏移值，所述MSRS,c为所述用户设备在其服务小区c第i子帧上的SRS资源块RB(Resource Block)个数，所述PO_PUSCH,c(j),j＝0,1,2为小区c的网络设备期望接收功率，所述PLc为所述用户设备在其服务小区c的下行路径损耗估计值，所述αc(j),j＝0,1,2为小区c的路径损耗补偿因子，所述fc(i)为所述用户设备的PUSCH发射功率调整量，所述ΔSRS,FD,c(i)为计算SRS发射功率时的第一功率补偿量或者第二功率补偿量，在第i子帧属于所述全双工子帧集合时，ΔSRS,FD,c(i)为所述第一功率补偿量，在第i子帧属于所述非全双工子帧集合时，ΔSRS,FD,c(i)为所述第二功率补偿量。
以LTE系统为例，在一个具体的示例中，用户设备在发射物理上行共享信道PUSCH的子帧上不同时发射物理上行控制信道PUCCH，用户设备上报的功率余量(Power Headroom)满足公式：
Figure PCTCN2017077528-appb-000012
或者满足公式：
Figure PCTCN2017077528-appb-000013
其中，所述PHtype1,c(i)和PHtype2(i)为不同定义规则下的用户设备上报的功率余量。
以LTE系统为例，在一个具体的示例中，用户设备在发射物理上行共享信道PUSCH的子帧上同时发射物理上行控制信道PUCCH，用户设备上报的功率余量满足公式：
Figure PCTCN2017077528-appb-000014
或者满足公式：
Figure PCTCN2017077528-appb-000015
其中，所述PHtype1,c(i)和PHtype2(i)为不同定义规则下的用户设备上报的功率余量，所述
Figure PCTCN2017077528-appb-000016
为假设第i子帧中只发射PUSCH时所述用户设备的最大发射功率。
以LTE系统为例，在一个具体的示例中，用户设备在发射物理上行控制信道PUCCH的子帧上不发射物理上行共享信道PUSCH时，用户设备上报的功率余量满足公式：
或者满足公式：
Figure PCTCN2017077528-appb-000018
其中，所述PHtype1,c(i)和PHtype2(i)为不同定义规则下的用户设备上报的功率余量，所述
Figure PCTCN2017077528-appb-000019
为假设第i子帧中只发射PUSCH时所述用户设备的最大发射功率。
在407部分，用户设备采用经过发射功率补偿的上行发射功率在所述子帧上发送数据。
可以理解的是，网络设备或者用户设备为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，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，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，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申请的范围。
图5示出了上述实施例中所涉及的网络设备的一种可能的结构示意图。
在一个示例中，网络设备的结构中包括接收器。在另一个示例中，网络设备的结构中还包括发射器。在再一个示例中，网络设备的结构中还包括处理器。在又一个示例中，网络设备的结构中还可以包括接口单元，用于支持与其他网络设备之间的通信，如与核心网节点之间的通信。在图5所对应的示例中，本申请所涉及的网络设备的结构中包括发射器501，接收器502，处理器503，存储器504。
所述发射器501和接收器502用于支持网络设备与上述实施例中的所述的UE之间收发信息，以及支持所述UE与其他UE之间进行无线电通信。所述处理器503执行各种用于与UE通信的功能。在下行链路上，业务数据和信令消息由处理器503进行处理，并由发射器501进行调节来产生下行链路信号，并经由天线发射给UE。在上行链路，来自所述UE的上行链路信号经由天线接收，由接收器502进行调节，并进一步由处理器503进行处理来恢复UE所发送的业务数据和信令信息。处理器503还执行图3及图4中涉及网络设备的处理过程和/ 或用于本申请所描述的技术的其他过程。存储器504用于存储网络设备的程序代码和数据。
可以理解的是，图5仅仅示出了所述网络设备的简化设计。在实际应用中，所述网络设备可以包含任意数量的发射器，接收器，处理器，控制器，存储器等，而所有可以实现本申请的网络设备都在本申请的保护范围之内。
图6示出了上述实施例中所涉及的UE的一种可能的设计结构的简化示意图。
在一个示例中，用户设备的结构中包括处理器和发射器。在另一个示例中，用户设备还包括接收器。
在图6所对应的示例中，本申请所涉及的用户设备的结构中包括发射器601，接收器602，处理器603，存储器604。
在上行链路上，发射器601调节(例如，模拟转换、滤波、放大和上变频等)输出采样并生成上行链路信号，该上行链路信号经由天线发射给上述实施例中所述的网络设备。在下行链路上，天线接收上述实施例中网络设备发射的下行链路信号。接收器602调节(例如，滤波、放大、下变频以及数字化等)从天线接收的信号并提供输入采样。在处理器603中，对业务数据和信令消息进行处理(例如，格式化、编码和交织)。这些单元根据无线接入网采用的无线接入技术(例如，LTE及其他演进系统的接入技术)来进行处理。所述处理器603还用于对UE的动作进行控制管理，用于执行上述实施例中由UE进行的处理，例如用于控制UE接收下行信息和/或根据接收到的下行信息进行本申请所描述的技术的其他过程。作为示例，处理器603用于支持UE执行图3及图4中涉及UE的处理过程和/或用于本申请所描述的技术的其他过程。存储器604用于存储用于所述UE的程序代码和数据。
结合本申请公开内容所描述的方法或者算法的步骤可以硬件的方式来实现，也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动硬盘、CD-ROM或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于用户设备中。当然，处理器和存储介质也可以作为分立组件存在于用户设备中。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本申请所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时，可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述的具体实施方式，对本申请的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本申请的具体实施方式而已，并不用于限定本申请的保护范围，凡在本申请的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本申请的保护范围之内。

Claims (23)

  1. 一种发射功率控制方法，其特征在于，包括：
    用户设备采用小区级的第一功率补偿量对第一子帧集合中的子帧进行发射功率补偿；
    用户设备采用进行过所述发射功率补偿的上行发射功率在所述子帧上发送数据。
  2. 如权利要求1所述的方法，其特征在于，在用户设备采用小区级的第一功率补偿量对第一子帧集合中的子帧进行发射功率补偿之前，还包括：
    用户设备接收网络设备发送的包含所述第一功率补偿量信息的系统信息块SIB(System Information Block)。
  3. 如权利要求1或2所述的方法，还包括：
    用户设备采用小区级的第二功率补偿量对第二子帧集合中的子帧进行发射功率补偿，所述第一功率补偿量大于所述第二功率补偿量。
  4. 如权利要求3所述的方法，其特征在于，所述第一子帧集合为全双工子帧集合，所述第二子帧集合为非全双工子帧集合，其中，所述全双工子帧集合中的子帧为网络设备接收此类子帧上的数据的同时在所述子帧的相同频段也进行下行数据发送的子帧，所述非全双工子帧集合中的子帧为网络设备接收此类子帧上的数据的同时在所述子帧的相同频段不进行下行数据发送的子帧。
  5. 如权利要求2至4任一项所述的方法，其特征在于，所述SIB包含一个第一功率补偿量信息，指示物理上行共享信道发射功率的第一功率补偿量、物理上行控制信道发射功率的第一功率补偿量以及探测参考信号发射功率的第一功率补偿量中的至少一个。
  6. 如权利要求2至4任一项所述的方法，其特征在于，所述SIB包含三个第一功率补偿量信息，分别指示物理上行共享信道发射功率的第一功率补偿量、物理上行控制信道发射功率的第一功率补偿量以及探测参考信号发射功率的第一功率补偿量。
  7. 一种发射功率控制方法，其特征在于，包括：
    网络设备接收用户设备采用小区级的第一功率补偿量进行发射功率补偿后发送的第一子帧集合中的子帧上的数据。
  8. 如权利要求7所述的方法，其特征在于，在网络设备接收所述用户设备采用小区级的第一功率补偿量进行发射功率补偿后发送的第一子帧集合中的子帧上的数据之前，还包括：
    网络设备向用户设备发送包含所述第一功率补偿量信息的系统信息块SIB(System Information Block)。
  9. 如权利要求7或8所述的方法，还包括，网络设备从功率补偿量集合中选取所述第一功率补偿量。
  10. 如权利要求7至9任一项所述的方法，还包括：
    网络设备接收所述用户设备采用小区级的第二功率补偿量进行发射功率补偿后发送的第二子帧集合中的子帧上的数据，所述第一功率补偿量大于所述第二功率补偿量。
  11. 如权利要求10所述的方法，其特征在于，所述第一子帧集合为全双工子帧集合，所述第二子帧集合为非全双工子帧集合，其中，所述全双工子帧集合中的子帧为网络设备接收此类子帧上的数据的同时在所述子帧的相同频段也进行下行数据发送的子帧，所述非全双工子帧集合中的子帧为网络设备接收此类子帧上的数据的同时在所述子帧的相同频段不进行下行数据发送的子帧。
  12. 如权利要求8至11任一项所述的方法，其特征在于，所述SIB包含一个第一功率补偿量信息，指示物理上行共享信道发射功率的第一功率补偿量、物理上行控制信道发射功率的第一功率补偿量以及探测参考信号发射功率的第一功率补偿量中的至少一个。
  13. 如权利要求8至11任一项所述的方法，其特征在于，所述SIB包含三个第一功率补偿量信息，分别指示物理上行共享信道发射功率的第一功率补偿量、物理上行控制信道发射功率的第一功率补偿量以及探测参考信号发射功率的第一功率补偿量。
  14. 一种用户设备，包括：
    至少一个处理器，用于采用小区级的第一功率补偿量对第一子帧集合中的子帧进行发射功率补偿；
    至少一个发射器，用于采用进行过所述发射功率补偿的上行发射功率在所述子帧上发送数据。
  15. 如权利要求14所述的用户设备，其特征在于，还包括：
    接收器，用于接收网络设备发送的包含所述第一功率补偿量信息的系统信息块SIB(System Information Block)。
  16. 如权利要求14或15所述的用户设备，其特征在于，所述至少一个处理器，还用于采用小区级的第二功率补偿量对第二子帧集合中的子帧进行发射功率补偿，所述第一功率补偿量大于所述第二功率补偿量。
  17. 如权利要求16所述的用户设备，其特征在于，所述第一子帧集合为全双工子帧集合，所述第二子帧集合为非全双工子帧集合，其中，所述全双工子帧集合中的子帧为网络设备接收此类子帧上的数据的同时在所述子帧的相同频段也进行下行数据发送的子帧，所述非全双工子帧集合中的子帧为网络设备接收此类子帧上的数据的同时在所述子帧的相同频段不进行下行数据发送的子帧。
  18. 一种网络设备，包括：
    至少一个接收器，用于接收用户设备采用小区级的第一功率补偿量进行发射功率补偿后发送的第一子帧集合中的子帧上的数据。
  19. 如权利要求18所述的网络设备，其特征在于，还包括：
    发射器，用于向用户设备发送包含所述第一功率补偿量信息的系统信息块SIB(System Information Block)。
  20. 如权利要求18或19所述的网络设备，其特征在于，还包括处理器，用于从功率补偿量集合中选取所述第一功率补偿量。
  21. 如权利要求18至20任一项所述的网络设备，其特征在于，所述至少一个接收器还用于：接收所述用户设备采用小区级的第二功率补偿量进行发射功率补偿后发送的第二子帧集合中的子帧上的数据，所述第一功率补偿量大于所述第二功率补偿量。
  22. 如权利要求21所述的网络设备，其特征在于，所述第一子帧集合为全双工子帧集合，所述第二子帧集合为非全双工子帧集合，其中，所述全双工子帧集合中的子帧为网络设备接收此类子帧上的数据的同时在所述子帧的相同频段也进行下行数据发送的子帧，所述非全双工子帧集合中的子帧为网络设备接收此类子帧上的数据的同时在所述子帧的相同频段不进行下行数据发送的子帧。
  23. 一种通信系统，其特征在于，包括如权利要求14至17任意一项所述的用户设备和如权利要求18至22任意一项所述的网络设备。
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