WO2021031972A1 - 信息反馈方法和装置、信息接收方法和装置及存储介质 - Google Patents

信息反馈方法和装置、信息接收方法和装置及存储介质 Download PDF

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Publication number
WO2021031972A1
WO2021031972A1 PCT/CN2020/108895 CN2020108895W WO2021031972A1 WO 2021031972 A1 WO2021031972 A1 WO 2021031972A1 CN 2020108895 W CN2020108895 W CN 2020108895W WO 2021031972 A1 WO2021031972 A1 WO 2021031972A1
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Prior art keywords
precoding matrix
information subband
width
matrix information
channel state
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PCT/CN2020/108895
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English (en)
French (fr)
Inventor
李永
吴昊
郑国增
鲁照华
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP20855390.9A priority Critical patent/EP4016868A4/en
Priority to US17/635,977 priority patent/US20220294499A1/en
Publication of WO2021031972A1 publication Critical patent/WO2021031972A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0417—Feedback systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection

Definitions

  • This application relates to a wireless communication network, for example, to an information feedback method and device, an information receiving method and device, and a storage medium.
  • This application provides an information feedback method and device, an information receiving method and device, and a storage medium to improve wireless communication efficiency.
  • the embodiment of the present application provides an information feedback method, including:
  • the precoding matrix information subband is determined according to the configuration information
  • the embodiment of the application provides an information receiving method, including:
  • the precoding matrix information subband is based on the configuration information determine.
  • An embodiment of the application provides an information feedback device, including:
  • the first receiving module is configured to receive configuration information sent by the first communication node
  • the determining module is configured to determine the precoding matrix information according to the configuration information; wherein the target frequency band of the precoding matrix information is determined by the indication information of the precoding matrix information subband; the precoding matrix information subband is determined according to the Configuration information is determined; and,
  • the feedback module is configured to feed back the precoding matrix information to the first communication node.
  • An embodiment of the present application provides an information receiving device, including:
  • a sending module configured to send configuration information to the second communication node
  • the second receiving module is configured to receive precoding matrix information fed back by the second communication node; wherein the target frequency band of the precoding matrix information is determined by the indication information of the precoding matrix information subband; the precoding matrix information The subband is determined according to the configuration information.
  • An embodiment of the present application provides a second communication node, including:
  • One or more processors are One or more processors;
  • Memory used to store one or more programs
  • the one or more processors When the one or more programs are executed by the one or more processors, the one or more processors implement the information feedback method described above.
  • An embodiment of the present application provides a first communication node, including:
  • One or more processors are One or more processors;
  • Memory used to store one or more programs
  • the one or more processors When the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned information receiving method.
  • An embodiment of the present application provides a storage medium that stores a computer program, and when the computer program is executed by a processor, any one of the methods in the embodiments of the present application is implemented.
  • Figure 1 is a schematic flow chart of an information feedback method provided by this application.
  • Figure 2 is a schematic structural diagram of a wireless network provided by this application.
  • FIG. 3 is a schematic structural diagram of another wireless network provided by this application.
  • FIG. 4 is a schematic flowchart of an information receiving method provided by this application.
  • FIG. 5 is a schematic structural diagram of an information feedback device provided by this application.
  • FIG. 6 is a schematic structural diagram of an information receiving device provided by this application.
  • FIG. 7 is a schematic structural diagram of a second communication node provided by this application.
  • FIG. 8 is a schematic structural diagram of a first communication node provided by this application.
  • FIG. 1 is a schematic flowchart of an information feedback method provided by this application. This method may be suitable for the case where the second communication node feeds back the precoding matrix information according to the configuration information sent by the first communication node. This method can be executed by the information feedback device provided in the present application, which can be implemented by software and/or hardware and integrated on the second communication node.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • Wideband Code Division Multiple Access Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LIE-A Advanced long term evolution
  • UMTS Universal Mobile Telecommunication System
  • 5G 5th generation mobile networks
  • the embodiments of this application can be used in wireless networks of different standards.
  • the wireless access network may include different communication nodes in different systems. Between two communication nodes in the wireless network, the first communication node transmits signals to the second communication node, the second communication node feeds back channel state information to the first communication node, and the first communication node determines according to the received channel state information Transmission scheme, thereby improving the efficiency of signal transmission.
  • Fig. 2 is a schematic structural diagram of a wireless network provided by this application.
  • the wireless network includes at least two base stations, a first base station 201 and a second base station 202, and a plurality of terminals 203 connected to the base stations.
  • the first communication node transmits signals to the second communication node, and the second communication node feeds back channel state information to the first communication node.
  • the first base station 201 transmits signals to the terminal 203, and the terminal 203 feeds back channel state information to the first base station 201 .
  • the first base station 201 transmits signals to the second base station 202, and the second base station 202 feeds back channel state information to the first base station 201.
  • FIG. 3 is a schematic structural diagram of another wireless network provided by this application.
  • the wireless network includes at least two terminals, a first terminal 301 and a second terminal 302.
  • the first communication node transmits signals to the second communication node, and the second communication node feeds back channel state information to the first communication node.
  • the first terminal 301 transmits signals to the second terminal 302, and the second terminal 302 transmits signals to the first terminal. 301 feedback channel state information.
  • the base station may be a device that can communicate with the terminal.
  • the base station can be any device with wireless transceiver function. Including but not limited to: base station NodeB, evolved base station eNodeB, base station in 5G communication system, base station in future communication system, access node in WiFi system, wireless relay node, wireless backhaul node, etc.
  • the base station may also be a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario; the base station may also be a small station, a transmission reference point (TRP), etc., which are not limited in this embodiment of the application.
  • cloud radio access network cloud radio access network, CRAN
  • TRP transmission reference point
  • a terminal is a device with wireless transceiver function. It can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted: it can also be deployed on the water (such as ships, etc.): it can also be deployed in the air (such as airplanes, balloons, etc.) And satellite class).
  • the terminal may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (Augmented Reality, AR) terminal, an industrial control (industrial control) Wireless terminals in, self-driving (self-driving), wireless terminals in remote medical, wireless terminals in smart grid, wireless terminals in transportation safety, Wireless terminals in a smart city, wireless terminals in a smart home, etc.
  • the embodiment of this application does not limit the application scenario.
  • the terminal may sometimes be called user equipment (UE), access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile equipment, UE terminal, terminal, wireless communication equipment, UE Agent or UE device, etc.
  • UE user equipment
  • the first communication node transmits multi-layer signals to the second communication node in a space division multiplexing manner, which improves communication efficiency.
  • the first communication node maps the signal to the antenna port through the precoding matrix for transmission, and transmits multi-layer signals; in this way, the transmitted signals of each layer correspond to each column vector in the precoding matrix.
  • One of the special cases is that the first communication node transmits a layer of signals to the second communication node.
  • the first communication node determines the transmission scheme of space division multiplexing according to the received channel state information fed back by the second communication node. Wherein, the channel state information fed back by the second communication node includes the information of the precoding matrix.
  • an information feedback method provided by this application includes S110, S120, and S130.
  • S110 Receive configuration information sent by the first communication node.
  • S120 Determine the precoding matrix information according to the configuration information; wherein the target frequency band of the precoding matrix information is determined by the indication information of the precoding matrix information subband; the precoding matrix information subband is determined according to the configuration information.
  • S130 Feed back the precoding matrix information to the first communication node.
  • the information feedback method in this embodiment can be understood as a channel state information feedback method, and the information feedback method provided in this embodiment is applied to the second communication node.
  • the channel state information includes precoding matrix information, channel quality indicator information, or channel strength information.
  • the target frequency band of the precoding matrix information refers to the applicable frequency band of the precoding matrix information, that is, the precoding matrix information is fed back for the target frequency band of the precoding matrix information.
  • Configuration information can be understood as information used to determine channel state information.
  • the configuration information is sent by the first communication node to the second communication node.
  • the configuration information includes the target frequency band of the channel state information.
  • the target frequency band of the channel state information is the applicable frequency band of other channel state information except the precoding matrix information, that is, other channel state information is fed back for the target frequency band of the channel state information.
  • Other channel state information includes channel quality indicator information, or channel strength information.
  • the target frequency band of the channel state information is determined by the indication information of the channel state information subband, and the target frequency band of the channel state information is composed of one or more channel state information subbands.
  • a channel state information subband is a continuous frequency band on a bandwidth part (Bandwidth part, BWP), and the BWP is divided into multiple precoding matrix information subbands.
  • a precoding matrix information subband is a continuous frequency band on the bandwidth part (Bandwidth part, BWP).
  • the BWP is divided into multiple precoding matrix information subbands.
  • the target frequency band of the precoding matrix information passes through the precoding matrix information subband.
  • the indication information is determined, that is, the target frequency band of the precoding matrix information is composed of one or more precoding matrix information subbands.
  • BWP is a continuous frequency band in the working carrier, and the second communication node is in an active or inactive state in units of bandwidth parts.
  • the correlation of the precoding matrix in the frequency domain is inconsistent with the correlation of other channel states in the frequency domain.
  • the precoding matrix uses the first frequency domain granularity to indicate the target frequency band of the precoding matrix information, and other channel states use the second frequency domain.
  • the granularity indicates the target frequency band of the channel state information, where the first frequency domain granularity and the second frequency domain granularity are different frequency domain granularity. In this way, the precoding matrix information and other channel state information can be adapted to their respective correlations.
  • the frequency domain granularity applicable to the precoding matrix is less than the frequency domain granularity applicable to the channel quality. If the precoding matrix adopts the frequency domain granularity suitable for the channel quality, the accuracy of the feedback precoding matrix is reduced; if the channel quality adopts the frequency domain granularity suitable for the precoding matrix, the feedback channel quality needs to waste too much resources Overhead.
  • the target frequency band of the channel state information is indicated by the channel state information subband
  • the target frequency band of the precoding matrix information is indicated by the precoding matrix information subband, so that other channel state information and the precoding matrix can use different frequency domain granularity. Feedback. This not only saves overhead, but also improves the accuracy of other channel state information and the accuracy of the precoding matrix.
  • the precoding matrix information subband is configured in the channel state information subband.
  • the first precoding matrix information subband in the bandwidth part is included in the first channel state information subband in the bandwidth part.
  • the first precoding matrix information subband refers to the first precoding matrix information subband in a wideband block;
  • the first channel state information subband in the bandwidth part refers to the first channel state information subband in the same wideband block.
  • the last precoding matrix information subband is included in the last channel state information subband in the bandwidth part.
  • the last precoding matrix information subband refers to the last precoding matrix information subband in a broadband block;
  • the last channel state information subband in the bandwidth part refers to the last channel state information subband in the same broadband block.
  • all precoding subbands in the bandwidth part are included in the respective channel state information subbands in the bandwidth part.
  • the precoding matrix information subband is included in the channel state information subband, so that the same precoding matrix under the same precoding matrix information subband can correspond to the same other channel state, avoiding the same precoding matrix under the same precoding matrix information subband Corresponding to different other channel states; thereby reducing the complexity of determining other channel states by the second communication node, and also reducing the complexity of determining the signal transmission scheme by the first communication node according to the channel state information.
  • the determination of the precoding matrix information subband according to the configuration information includes: determining the precoding matrix information subband width according to the channel state information subband width.
  • the subband width refers to the frequency difference between the highest frequency and the lowest frequency in the subband, that is, the bandwidth of the subband, that is, the size of the subband.
  • the width of the first precoding matrix information subband in the bandwidth part is determined according to the width of the first channel state information subband in the bandwidth part; this is beneficial for the first precoding matrix information subband to be included in the first channel state information subband.
  • the width of the last precoding matrix information subband in the bandwidth part is determined according to the last channel state information subband size in the bandwidth part; this is beneficial for the last precoding matrix information subband to be included in the last channel state information subband .
  • the width of a precoding matrix information subband in the bandwidth part is determined according to the channel state information subband width of the precoding matrix information subband contained in the bandwidth part; this is beneficial for the precoding matrix information subband to be included in the corresponding channel state In the information subband.
  • each channel state information subband in the bandwidth part may be inconsistent, and the width of each precoding matrix information subband in the bandwidth part may be inconsistent; the width of a precoding matrix information subband in the bandwidth part is based on the precoding matrix information subband contained in the bandwidth part The width of the channel state information subband is determined, which facilitates the precoding matrix information subband to be included in the corresponding channel state information subband.
  • the determining the precoding matrix information subband width according to the channel state information subband width includes: determining the first bit precoding in the bandwidth portion according to the first bit channel state information subband width in the bandwidth portion Matrix information subband width; wherein the bandwidth part includes one or more subbands.
  • the determining the first precoding matrix information subband width in the bandwidth part according to the first channel state information subband width in the bandwidth part includes: dividing the first precoding matrix information subband in the bandwidth part
  • the band width is configured to be equal to the width of the first channel state information subband in the bandwidth portion.
  • the width of the first precoding matrix information subband in the bandwidth part is equal to the width of the first channel state information subband in the bandwidth part. In this way, the first precoding matrix information subband in the bandwidth part is included in the first channel state information subband in the bandwidth part, and it is advantageous for other precoding subbands to be included in the corresponding channel state information subband.
  • the determining the first precoding matrix information subband width in the bandwidth part according to the first channel state information subband width in the bandwidth part includes: according to the first channel state information subband in the bandwidth part The comparison result of the width and the width of the intermediate precoding matrix information subband determines the width of the first precoding matrix information subband in the bandwidth part; wherein the intermediate precoding matrix information subband is the precoding matrix in the bandwidth part Information subband; the intermediate precoding matrix information subband is a non-first precoding matrix information subband, and a non-final precoding matrix information subband.
  • the first precoding matrix information subband width in the bandwidth part is equal to the first channel state information subband width in the bandwidth part.
  • the width of the first channel state information subband in the bandwidth part is greater than the width of the intermediate precoding matrix information subband, then the first precoding matrix information subband width in the bandwidth part is equal to the first channel state information subband width in the bandwidth part and other precoding The difference in the subband width of the coding matrix information.
  • the first channel state information subband width in the bandwidth part is less than or equal to the product of the intermediate precoding matrix information subband width and a predefined coefficient, then the first precoding matrix information subband width in the bandwidth part and the first bit in the bandwidth part The channel state information subbands have the same width.
  • the width of the first channel state information subband in the bandwidth part is greater than the product of the intermediate precoding matrix information subband width and a predefined coefficient, then the first precoding matrix information subband width in the bandwidth part is equal to the first channel state in the bandwidth part The difference between the information subband width and the intermediate precoding matrix information subband width.
  • the width of the first channel state information subband in the bandwidth part is less than or equal to the product of the intermediate precoding matrix information subband width and a predefined coefficient, then the first precoding matrix information subband width in the bandwidth part is equal to the first bit in the bandwidth part The sum of the channel state information subband width and the intermediate precoding matrix information subband width.
  • the width of the first channel state information subband in the bandwidth part is less than or equal to the sum of the intermediate precoding matrix information subband width and a predefined width, then the first precoding matrix information subband width in the bandwidth part and the first bit in the bandwidth part The channel state information subbands have the same width.
  • the width of the first channel state information subband in the bandwidth part is greater than the sum of the intermediate precoding matrix information subband width and a predefined width, then the first precoding matrix information subband width in the bandwidth part is equal to the first channel state in the bandwidth part The difference between the information subband width and the intermediate precoding matrix information subband width.
  • the width of the first channel state information subband in the bandwidth part is less than or equal to the sum of the intermediate precoding matrix information subband width and a predefined width, then the first precoding matrix information subband width in the bandwidth part is equal to the first bit in the bandwidth part The sum of the channel state information subband width and the intermediate precoding matrix information subband width.
  • the first precoding matrix information subband width in the bandwidth part is determined according to the modulo operation of the first channel state information subband width and the intermediate precoding matrix information subband width, where the dividend is the first channel state information subband width, and the divisor is The subband width of the intermediate precoding matrix information.
  • the determining the first precoding matrix information subband width in the bandwidth part according to the first channel state information subband width in the bandwidth part includes: according to the first channel state information subband in the bandwidth part The comparison result of the width and the width of the intermediate channel state information subband determines the first precoding matrix information subband width in the bandwidth part; wherein the intermediate channel state information subband is the channel state information subband in the bandwidth part, so The intermediate channel state information subband is a non-first channel state information subband, and a non-last channel state information subband.
  • the width of the first precoding matrix information subband can be prevented from being too large or too small than the predefined frequency domain grain, so as to ensure the balance of the precoding matrix information subband width.
  • the width of the first channel state information subband in the bandwidth part is less than or equal to the product of the intermediate channel state information subband width and a predefined coefficient, then the first precoding matrix information subband width in the bandwidth part and the first channel state in the bandwidth part The information subbands have the same width.
  • the width of the first channel state information subband in the bandwidth part is greater than the product of the intermediate channel state information subband width and a predefined coefficient, then the first precoding matrix information subband width in the bandwidth part is equal to the first channel state information in the bandwidth part The difference between the subband width and the product.
  • the width of the first channel state information subband in the bandwidth part is less than or equal to the product of the intermediate channel state information subband width and a predefined coefficient
  • the first precoding matrix information subband width in the bandwidth part is equal to the first channel state information in the bandwidth part The sum of the width of the state information subband and the product.
  • the product of the intermediate channel state information subband width and a predefined coefficient is the predefined frequency domain granularity.
  • This frequency domain granularity is related to the intermediate channel state information subband width and can be defined by a predefined
  • the coefficient adjusts the difference associated with the intermediate channel state information subband width.
  • the intermediate channel state information subband width may be the channel state information subband width configured by the first communication node.
  • the subband width of the first precoding matrix information in the bandwidth part is determined according to the modulo operation of the first channel state information subband width and the predefined frequency domain granularity, where the dividend is the first channel state information subband width, and the divisor is the pre Defined frequency domain granularity.
  • the determining the precoding matrix information subband width according to the channel state information subband width includes: determining the bandwidth according to the last channel state information subband width in the bandwidth part The subband width of the last bit precoding matrix information in the part.
  • the width of the last precoding matrix information subband in the bandwidth part is equal to the last channel state information subband width in the bandwidth part.
  • the last precoding matrix information subband in the bandwidth part is included in the last channel state information subband in the bandwidth part, and it is advantageous for the intermediate precoding subband to be included in the corresponding channel state information subband.
  • the width of the last precoding matrix information subband in the bandwidth part is determined according to the comparison result of the last channel state information subband width in the bandwidth part and the intermediate precoding matrix information subband width; the middle precoding matrix information subband is the bandwidth
  • the precoding matrix information subband within the part is neither the first precoding matrix information subband nor the last precoding matrix information subband. This can prevent the last precoding matrix information subband width from being too large or too small than the intermediate precoding subband width, so as to ensure the balance of the precoding matrix information subband width.
  • the determining the last bit precoding matrix information subband width in the bandwidth portion according to the last bit channel state information subband width in the bandwidth portion includes: precoding the last bit in the bandwidth portion
  • the width of the matrix information subband is configured to be equal to the width of the last channel state information subband in the bandwidth portion.
  • the determining the last precoding matrix information subband width in the bandwidth part according to the last channel state information subband width in the bandwidth part includes: according to the last channel status in the bandwidth part
  • the comparison result of the information subband width and the intermediate channel state information subband width determines the last precoding matrix information subband width in the bandwidth portion.
  • the width of the last precoding matrix information subband can be prevented from being too large or too small than the predefined grain, so as to ensure the balance of the precoding matrix information subband width.
  • the size of the last channel state information subband in the bandwidth part is less than or equal to the product of other channel state information subband sizes and a predefined coefficient, then the last precoding matrix information subband size in the bandwidth part and the last subband in the bandwidth part The size of one channel state information subband is equal.
  • the width of the last channel state information subband in the bandwidth part is greater than the product of the intermediate channel state information subband width and a predefined coefficient, then the last precoding matrix information subband width in the bandwidth part is equal to the last bit in the bandwidth part The difference between the channel state information subband width and the product.
  • the width of the last channel state information subband in the bandwidth part is less than or equal to the product of the intermediate channel state information subband width and a predefined coefficient, then the last precoding matrix information subband width in the bandwidth part is equal to that in the bandwidth part. The sum of the width of the last channel state information subband and the product.
  • the product of the intermediate channel state information subband width and a predefined coefficient is the predefined frequency domain granularity.
  • This frequency domain granularity is related to the intermediate channel state information subband width, and can be adjusted with the intermediate channel by a predefined coefficient.
  • the intermediate channel state information subband width may be the channel state information subband width configured by the first communication node.
  • the last bit precoding matrix information subband width in the bandwidth part is determined according to the modulo operation of the last bit channel state information subband width and the predefined granularity, where the dividend is the last bit channel state information subband width, and the divisor is Predefined granularity.
  • the determining the last precoding matrix information subband width in the bandwidth part according to the last channel state information subband width in the bandwidth part includes: according to the last channel status in the bandwidth part
  • the comparison result of the information subband width and the intermediate precoding matrix information subband width determines the last precoding matrix information subband width in the bandwidth portion.
  • the width of the last channel state information subband in the bandwidth part is less than or equal to the width of the intermediate precoding matrix information subband, then the last precoding matrix information subband width in the bandwidth part and the last channel state information subband in the bandwidth part The width is equal.
  • the last precoding matrix information subband width in the bandwidth portion is equal to the last channel state information subband width in the bandwidth portion Difference from the subband width of the intermediate precoding matrix information.
  • the last channel state information subband width in the bandwidth part is less than or equal to the product of the intermediate precoding matrix information subband width and a predefined coefficient, then the last precoding matrix information subband width and bandwidth part in the bandwidth part The inner last bit channel state information subband width is equal.
  • the width of the last channel state information subband in the bandwidth part is greater than the product of the intermediate precoding matrix information subband width and a predefined coefficient, then the last precoding matrix information subband width in the bandwidth part is equal to the end of the bandwidth part. The difference between the channel state information subband width and the intermediate precoding matrix information subband width.
  • the last channel state information subband width in the bandwidth part is less than or equal to the product of the intermediate precoding matrix information subband width and a predefined coefficient, then the last precoding matrix information subband width in the bandwidth part is equal to the bandwidth part The sum of the inner last bit channel state information subband width and the intermediate precoding matrix information subband width.
  • the last channel state information subband width in the bandwidth part is less than or equal to the sum of the intermediate precoding matrix information subband width and a predefined width, then the last precoding matrix information subband width and bandwidth part in the bandwidth part The width of the subbands of the inner last channel state information is equal.
  • the width of the last channel state information subband in the bandwidth part is greater than the sum of the intermediate precoding matrix information subband width and a predefined width, then the last precoding matrix information subband width in the bandwidth part is equal to the end of the bandwidth part. The difference between the channel state information subband width and the intermediate precoding matrix information subband width.
  • the width of the last channel state information subband in the bandwidth part is less than or equal to the sum of the intermediate precoding matrix information subband width and a predefined width, then the last precoding matrix information subband width in the bandwidth part is equal to the bandwidth part The sum of the inner last bit channel state information subband width and the intermediate precoding matrix information subband width.
  • the width of the last precoding matrix information subband in the bandwidth part is determined according to the modulo operation of the last channel state information subband width and the intermediate precoding matrix information subband width, where the dividend is the last channel state information subband width ,
  • the divisor is the subband width of the intermediate precoding matrix information.
  • the configuration information further includes: a bandwidth part starting frequency domain point; the precoding matrix information subband is determined according to the configuration information, including: according to the bandwidth part starting frequency domain point and the middle
  • the precoding matrix information subband width determines the first precoding matrix information subband width in the bandwidth part.
  • the width of the first precoding matrix information subband in the bandwidth part is the difference between the size of the intermediate precoding matrix information subband and the result of a modular operation; wherein the dividend of the modular operation is the starting frequency domain position of the bandwidth part, and the divisor is the other precoding Encoding matrix information subband width.
  • the configuration information further includes: bandwidth part termination frequency domain points; the precoding matrix information subband is determined according to the configuration information, including: bandwidth part termination frequency domain points and intermediate precoding
  • the width of the matrix information subband determines the width of the last precoding matrix information subband in the bandwidth part.
  • the width of the last precoding matrix information subband in the bandwidth part is the result of the modulo operation of the end frequency domain position of the bandwidth part and the width of the intermediate precoding matrix information subband; wherein the dividend of the modulus operation is the end frequency domain position of the bandwidth part,
  • the divisor is the subband size of other precoding matrix information.
  • the last precoding matrix information subband width in the bandwidth part is the intermediate precoding matrix information subband size.
  • the width of the last precoding matrix information subband in the bandwidth part is the modulo operation result of the end frequency domain position of the bandwidth part and the size of the intermediate precoding matrix information subband.
  • the configuration information further includes: a configuration density of a reference signal; the precoding matrix information subband is determined according to the configuration information, including: determining the precoding according to the configuration density of the reference signal Encoding matrix information subband width.
  • the configuration density of the reference signal refers to the configuration density of the channel state information reference signal associated with the feedback report.
  • the subband width of the first precoding matrix information in the bandwidth part is determined according to the configuration density of the channel state information reference signal associated with the feedback report.
  • the second communication node determines the channel state information by measuring the channel state information reference signal associated with the feedback report, and performs feedback.
  • the configuration density of the reference signal is determined by the first communication node.
  • the width of the first precoding matrix information subband in the bandwidth part is determined according to the configuration density of the channel state information reference signal associated with the feedback report; in this way, the density of the reference signal in the first precoding matrix information subband can be not lower than the stated Refer to the configuration density of the reference signal, and keep the first precoding matrix information sub-band as small granularity.
  • the first precoding matrix information subband width in the bandwidth part is determined according to the comparison result of the first channel state information subband width in the bandwidth part and the intermediate precoding matrix information subband width;
  • the intermediate precoding matrix information subband is the precoding matrix information subband in the bandwidth part, but it is neither the first precoding matrix information subband nor the last precoding matrix information subband. In this way, it can avoid that the width of the first precoding matrix information subband is too large or too small than the intermediate precoding subband width, so as to ensure the equalization of the precoding matrix information subband width.
  • the width of the first matrix information subband in the bandwidth part is determined according to the comparison result of the first channel state information subband width in the bandwidth part and the intermediate precoding matrix information subband width.
  • the method is as follows:
  • the first precoding matrix information subband width in the bandwidth part is equal to the first channel state information subband width in the bandwidth part.
  • the width of the first channel state information subband in the bandwidth part is greater than the width of the intermediate precoding matrix information subband, the width of the first precoding matrix information subband in the bandwidth part is equal to the width of the first channel state information subband in the bandwidth part and other precoding matrix information.
  • the difference in the subband width of the coding matrix information is equal to the width of the first channel state information subband in the bandwidth part and other precoding matrix information.
  • the first channel state information subband width in the bandwidth part is less than or equal to the product of the intermediate precoding matrix information subband width and a predefined coefficient, then the first precoding matrix information subband width in the bandwidth part and the first bit in the bandwidth part The channel state information subbands have the same width.
  • the width of the first channel state information subband in the bandwidth part is greater than the product of the intermediate precoding matrix information subband width and a predefined coefficient, then the first precoding matrix information subband width in the bandwidth part is equal to the first channel state in the bandwidth part The difference between the information subband width and the intermediate precoding matrix information subband width.
  • the width of the first channel state information subband in the bandwidth part is less than or equal to the product of the intermediate precoding matrix information subband width and a predefined coefficient, then the first precoding matrix information subband width in the bandwidth part is equal to the first bit in the bandwidth part The sum of the channel state information subband width and the intermediate precoding matrix information subband width.
  • the width of the first channel state information subband in the bandwidth part is less than or equal to the sum of the intermediate precoding matrix information subband width and a predefined width, then the first precoding matrix information subband width in the bandwidth part and the first bit in the bandwidth part The channel state information subbands have the same width.
  • the width of the first channel state information subband in the bandwidth part is greater than the sum of the intermediate precoding matrix information subband width and a predefined width, then the first precoding matrix information subband width in the bandwidth part is equal to the first channel state in the bandwidth part The difference between the information subband width and the intermediate precoding matrix information subband width.
  • the width of the first channel state information subband in the bandwidth part is less than or equal to the sum of the intermediate precoding matrix information subband width and a predefined width, then the first precoding matrix information subband width in the bandwidth part is equal to the first bit in the bandwidth part The sum of the channel state information subband width and the intermediate precoding matrix information subband width.
  • the first precoding matrix information subband width in the bandwidth part is determined according to the modulo operation of the first channel state information subband width and the intermediate precoding matrix information subband width, where the dividend is the first channel state information subband width, and the divisor is The subband width of the intermediate precoding matrix information.
  • the first precoding matrix information subband width in the bandwidth part is the difference between the intermediate precoding matrix information subband width and the result of a modular operation;
  • the dividend of the operation is the starting frequency domain position of the bandwidth part, and the divisor is the subband width of the intermediate precoding matrix information.
  • the first precoding matrix information subband width in the bandwidth part is equal to the first channel state information subband width in the bandwidth part.
  • the subband width of the last precoding matrix information in the bandwidth part is determined according to the configuration density of the channel state information reference signal associated with the feedback report.
  • the second communication node determines the channel state information by measuring the channel state information reference signal associated with the feedback report, and performs feedback.
  • the configuration density of the reference signal is determined by the first communication node.
  • the width of the last coding matrix information subband in the bandwidth part is determined according to the configuration density of the channel state information reference signal associated with the feedback report; in this way, the density of the reference signal in the last precoding matrix information subband can be not lower than the all
  • the configuration density of the channel state information reference signal, and the last precoding matrix information subband is kept small in granularity.
  • the last precoding matrix information subband width in the bandwidth part is determined according to the comparison result of the last channel state information subband width in the bandwidth part and the intermediate precoding matrix information subband width ;
  • the intermediate precoding matrix information subband is the precoding matrix information subband in the bandwidth part, but it is neither the first precoding matrix information subband nor the last precoding matrix information subband. This can prevent the last precoding matrix information subband width from being too large or too small than the intermediate precoding subband width, so as to ensure the balance of the precoding matrix information subband width.
  • the last precoding matrix information subband width in the bandwidth part is determined according to the comparison result of the last channel state information subband width in the bandwidth part and the intermediate precoding matrix information subband width.
  • the method is as follows:
  • the width of the last channel state information subband in the bandwidth part is less than or equal to the width of the intermediate precoding matrix information subband, then the last precoding matrix information subband width in the bandwidth part and the last channel state information subband in the bandwidth part The width is equal.
  • the last precoding matrix information subband width in the bandwidth portion is equal to the last channel state information subband width in the bandwidth portion Difference from the subband width of the intermediate precoding matrix information.
  • the last channel state information subband width in the bandwidth part is less than or equal to the product of the intermediate precoding matrix information subband width and a predefined coefficient, then the last precoding matrix information subband width and bandwidth part in the bandwidth part The inner last bit channel state information subband width is equal.
  • the width of the last channel state information subband in the bandwidth part is greater than the product of the intermediate precoding matrix information subband width and a predefined coefficient, then the last precoding matrix information subband width in the bandwidth part is equal to the end of the bandwidth part. The difference between the channel state information subband width and the intermediate precoding matrix information subband width.
  • the last channel state information subband width in the bandwidth part is less than or equal to the product of the intermediate precoding matrix information subband width and a predefined coefficient, then the last precoding matrix information subband width in the bandwidth part is equal to the bandwidth part The sum of the inner last bit channel state information subband width and the intermediate precoding matrix information subband width.
  • the last channel state information subband width in the bandwidth part is less than or equal to the sum of the intermediate precoding matrix information subband width and a predefined width, then the last precoding matrix information subband width and bandwidth part in the bandwidth part The width of the subbands of the inner last channel state information is equal.
  • the width of the last channel state information subband in the bandwidth part is greater than the sum of the intermediate precoding matrix information subband width and a predefined width, then the last precoding matrix information subband width in the bandwidth part is equal to the end of the bandwidth part. The difference between the channel state information subband width and the intermediate precoding matrix information subband width.
  • the width of the last channel state information subband in the bandwidth part is less than or equal to the sum of the intermediate precoding matrix information subband width and a predefined width, then the last precoding matrix information subband width in the bandwidth part is equal to the bandwidth part The sum of the inner last bit channel state information subband width and the intermediate precoding matrix information subband width.
  • the width of the last precoding matrix information subband in the bandwidth part is determined according to the modulo operation of the last channel state information subband width and the intermediate precoding matrix information subband width, where the dividend is the last channel state information subband width ,
  • the divisor is the subband width of the intermediate precoding matrix information.
  • the last precoding matrix information subband width in the bandwidth part is the difference between the intermediate precoding matrix information subband width and the result of a modular operation; wherein the dividend of the modular operation is The starting frequency domain position of the bandwidth part, and the divisor is the subband size of the intermediate precoding matrix information.
  • the width of the last precoding matrix information subband in the bandwidth part is equal to the width of the last channel state information subband in the bandwidth part.
  • the precoding matrix information subband is determined according to the configuration information, including: determining the first precoding matrix information subband width in the bandwidth part according to the first type density of the reference signal; wherein, the The first type density refers to the density of the reference signal in the first precoding matrix information subband determined by the first type of precoding matrix information subband width.
  • the first type of precoding matrix information subband width is the difference between the first channel state information subband width and the intermediate precoding matrix information subband width in the bandwidth portion, or the first type precoding matrix
  • the information subband width is a modulo operation result of the first channel state information subband width and the intermediate precoding matrix information subband width in the bandwidth portion.
  • the density of the reference signal in the last precoding matrix information subband can be not lower than the configuration density of the reference signal, and the first precoding matrix information subband can be kept small in granularity.
  • the first precoding matrix information subband width in the bandwidth part is The width of the first channel state information subband in the bandwidth part is equal.
  • the first precoding matrix information subband in the bandwidth part The width is equal to the subband width of the first-type precoding matrix information.
  • the density of the channel state information reference signal is greater than or equal to the configuration density of the reference signal.
  • the precoding matrix information subband is obtained by mapping the channel state information subband.
  • One channel state information subband is mapped to an integer number of precoding matrix information subbands.
  • the manner in which the channel state information subband is mapped to the precoding matrix information subband is determined by the position of the channel state information subband in the bandwidth part.
  • the first channel state information subband in the bandwidth part is mapped into a precoding matrix information subband; the last channel state information subband in the bandwidth part is mapped into a precoding matrix information subband; other channel state information in the bandwidth part
  • the subbands are mapped into M precoding matrix information subbands, where M is determined by the configuration parameter of the first communication node, and M is a positive integer.
  • the first channel state information subband in the bandwidth part is mapped into F precoding matrix information subbands according to the size of the first channel state information subband; the last channel state information subband in the bandwidth part is mapped according to the last channel state The size of the information subband is mapped to F precoding matrix information subbands; the other channel state information subbands in the bandwidth part are mapped to M precoding matrix information subbands, and M is determined by the configuration parameter of the first communication node.
  • the present application also provides an information receiving method, which is applied to the first communication node.
  • the method may be executed by an information receiving device, which may be implemented by software and/or hardware, and integrated on the first communication node. This method can be applied to the situation where the first communication node sends configuration information and receives feedback information from the second communication node.
  • an information receiving device which may be implemented by software and/or hardware, and integrated on the first communication node.
  • FIG. 4 is a schematic flowchart of an information receiving method provided by this application. As shown in FIG. 4, the information receiving method provided by this application includes S410 and S420.
  • S410 Send configuration information to the second communication node.
  • An information receiving method provided by the present application sends configuration information to a second communication node, and receives precoding matrix information fed back by the second communication node, wherein the target frequency band of the precoding matrix information passes the indication information of the precoding matrix information subband Determined, the precoding matrix information subband is determined according to the configuration information.
  • the target frequency band of the channel state information is indicated by the channel state information subband
  • the target frequency band of the precoding matrix information is indicated by the precoding matrix information subband, so that other channel state information and the precoding matrix can use a frequency domain granularity respectively Be fed back. This not only saves overhead, but also improves the accuracy of other channel state information and the accuracy of the precoding matrix.
  • the method further includes: determining a transmission scheme of the data to be transmitted according to the precoding matrix information.
  • the configuration information includes: the target frequency band of the channel state information; the target frequency band of the channel state information is indicated by the channel state information subband; the precoding matrix information subband is in the In the channel state information subband.
  • the determination of the precoding matrix information subband according to the configuration information includes: determining the precoding matrix information subband width according to the channel state information subband width.
  • the determining the precoding matrix information subband width according to the channel state information subband width includes: determining the first precoding matrix information subband width in the bandwidth part according to the first channel state information subband width in the bandwidth part. Encoding matrix information subband width; wherein the bandwidth part includes one or more subbands.
  • the determining the subband width of the first precoding matrix information in the bandwidth part according to the subband width of the first channel state information in the bandwidth part includes: combining the first precoding matrix information in the bandwidth part
  • the subband width is configured to be equal to the first channel state information subband width in the bandwidth portion.
  • the determining the first precoding matrix information subband width in the bandwidth part according to the first channel state information subband width in the bandwidth part includes: according to the first channel state information subband width in the bandwidth part The comparison result of the band width and the width of the intermediate precoding matrix information subband determines the first precoding matrix information subband width in the bandwidth part; wherein the intermediate precoding matrix information subband is the precoding in the bandwidth part Matrix information subband; the intermediate precoding matrix information subband is a non-first precoding matrix information subband, and a non-final precoding matrix information subband.
  • the determining the first precoding matrix information subband width in the bandwidth part according to the first channel state information subband width in the bandwidth part includes: according to the first channel state information subband width in the bandwidth part The comparison result of the band width and the width of the intermediate channel state information subband determines the first precoding matrix information subband width in the bandwidth part; wherein the intermediate channel state information subband is the channel state information subband in the bandwidth part, The intermediate channel state information subband is a non-first channel state information subband, and a non-last channel state information subband.
  • the determining the precoding matrix information subband width according to the channel state information subband width includes: determining the last channel state information subband width in the bandwidth portion The subband width of the last precoding matrix information in the bandwidth part.
  • the determining the last bit precoding matrix information subband width in the bandwidth portion according to the last bit channel state information subband width in the bandwidth portion includes: presetting the last bit in the bandwidth portion
  • the coding matrix information subband width is configured to be equal to the last channel state information subband width in the bandwidth portion.
  • the determining the last precoding matrix information subband width in the bandwidth part according to the last channel state information subband width in the bandwidth part includes: according to the last channel in the bandwidth part
  • the comparison result of the state information subband width and the intermediate precoding matrix information subband width determines the last precoding matrix information subband width in the bandwidth portion.
  • the determining the last precoding matrix information subband width in the bandwidth part according to the last channel state information subband width in the bandwidth part includes: according to the last channel in the bandwidth part The comparison result of the state information subband width and the intermediate channel state information subband width determines the last precoding matrix information subband width in the bandwidth portion.
  • the configuration information further includes: a starting frequency domain point of the bandwidth part;
  • the determination of the precoding matrix information subband according to the configuration information includes: determining the first precoding matrix information subband width in the bandwidth part according to the starting frequency domain point of the bandwidth part and the intermediate precoding matrix information subband width.
  • the configuration information further includes: a bandwidth part termination frequency domain point;
  • the determination of the precoding matrix information subband according to the configuration information includes: determining the last precoding matrix information subband width in the bandwidth part according to the end frequency domain point of the bandwidth part and the intermediate precoding matrix information subband width.
  • the configuration information further includes: the configuration density of the reference signal
  • the determining of the precoding matrix information subband according to the configuration information includes: determining the precoding matrix information subband width according to the configuration density of the reference signal.
  • the precoding matrix information subband is determined according to the configuration information, including: determining the first precoding matrix information subband width in the bandwidth part according to the first type density of the reference signal; wherein, The first type density refers to the density of the reference signal in the first precoding matrix information subband determined by the first type precoding matrix information subband width;
  • the first type of precoding matrix information subband width is the difference between the first channel state information subband width and the intermediate precoding matrix information subband width in the bandwidth portion, or the first type precoding matrix
  • the information subband width is a modulo operation result of the first channel state information subband width and the intermediate precoding matrix information subband width in the bandwidth portion.
  • the determination of the precoding matrix information subband according to the configuration information includes: determining the last precoding matrix information subband width in the bandwidth part according to the second type density of the reference signal; wherein, The second type density is the density of the reference signal in the last precoding matrix information subband determined by the second type precoding matrix information subband width;
  • the second type of precoding matrix information subband width is the difference between the last channel state information subband width and the intermediate precoding matrix information subband width in the bandwidth portion, or, the second type precoding The matrix information subband width is a modulo operation result of the last channel state information subband width and the intermediate precoding matrix information subband width in the bandwidth portion.
  • the density of the channel state information reference signal is greater than or equal to the configuration density of the reference signal.
  • the precoding matrix information subband is obtained by mapping the channel state information subband.
  • the manner in which the channel state information subband is mapped to the precoding matrix information subband is determined by the position of the channel state information subband in the bandwidth part.
  • FIG. 5 is a schematic structural diagram of an information feedback device provided by this application. As shown in FIG. 5, an information feedback device provided by an embodiment of this application can be integrated in the second communication. On the node, the device includes: a first receiving module 51, a determining module 52, and a feedback module 53.
  • the first receiving module 51 is configured to receive configuration information sent by the first communication node
  • the determining module 52 is configured to determine precoding matrix information according to the configuration information; wherein the target frequency band of the precoding matrix information is determined by the indication information of the precoding matrix information subband; the precoding matrix information subband is determined according to the The configuration information is determined; and,
  • the feedback module 53 is configured to feed back the precoding matrix information to the first communication node.
  • the information feedback device provided in this embodiment is used in the information feedback method of the embodiment of the present application.
  • the implementation principle and technical effect of the information feedback device provided in this embodiment are similar to the information feedback method of the embodiment of the present application, and will not be repeated here.
  • the configuration information includes: the target frequency band of the channel state information; the target frequency band of the channel state information is indicated by the channel state information subband; the precoding matrix information subband is in the In the channel state information subband.
  • the determining module 52 is configured to determine the precoding matrix information subband width according to the channel state information subband width.
  • the determining module 52 is configured to determine the first precoding matrix information subband width in the bandwidth part according to the first channel state information subband width in the bandwidth part; wherein the bandwidth part includes one or Multiple subbands.
  • the determining module 52 is configured to configure the first precoding matrix information subband width in the bandwidth portion to be equal to the first channel state information subband width in the bandwidth portion.
  • the determining module 52 is configured to determine the first precoding in the bandwidth part according to the comparison result of the first channel state information subband width in the bandwidth part and the intermediate precoding matrix information subband width Matrix information subband width; wherein the intermediate precoding matrix information subband is a precoding matrix information subband in the bandwidth part; the intermediate precoding matrix information subband is a non-first precoding matrix information subband, And it is not the last precoding matrix information subband.
  • the determining module 52 is configured to determine the first precoding matrix in the bandwidth portion according to the comparison result of the first channel state information subband width and the intermediate channel state information subband width in the bandwidth portion Information subband width; wherein, the intermediate channel state information subband is the channel state information subband in the bandwidth portion, the intermediate channel state information subband is the non-first channel state information subband, and the non-last channel state information Subband.
  • the determining module 52 is configured to determine the last bit precoding matrix information subband width in the bandwidth portion according to the last bit channel state information subband width in the bandwidth portion.
  • the determining module 52 is configured to configure the last bit precoding matrix information subband width in the bandwidth portion to be equal to the last bit channel state information subband width in the bandwidth portion.
  • the determining module 52 is configured to determine the last bit in the bandwidth portion according to the comparison result of the last bit channel state information subband width in the bandwidth portion and the intermediate precoding matrix information subband width. Precoding matrix information subband width.
  • the determining module 52 is configured to determine the last pre-channel state information in the bandwidth section according to the comparison result of the last channel state information sub-band width and the intermediate channel state information sub-band width in the bandwidth section. Encoding matrix information subband width.
  • the configuration information further includes: a starting frequency domain point of the bandwidth part;
  • the determining module 52 is configured to determine the first precoding matrix information subband width in the bandwidth part according to the starting frequency domain point of the bandwidth part and the intermediate precoding matrix information subband width.
  • the configuration information further includes: a bandwidth part termination frequency domain point;
  • the determining module 52 is configured to determine the last precoding matrix information subband width in the bandwidth part according to the end frequency domain point of the bandwidth part and the intermediate precoding matrix information subband width.
  • the configuration information further includes: the configuration density of the reference signal
  • the determining module 52 is configured to determine the subband width of the precoding matrix information according to the configuration density of the reference signal.
  • the determining module 52 is configured to determine the first precoding matrix information subband width in the bandwidth part according to the first type density of the reference signal; wherein, the first type density refers to the first type density The density of the reference signal in the first precoding matrix information subband determined by the precoding matrix information subband width;
  • the first type of precoding matrix information subband width is the difference between the first channel state information subband width and the intermediate precoding matrix information subband width in the bandwidth portion, or the first type precoding matrix
  • the information subband width is a modulo operation result of the first channel state information subband width and the intermediate precoding matrix information subband width in the bandwidth portion.
  • the determining module 52 is configured to determine the last precoding matrix information subband width in the bandwidth part according to the second type density of the reference signal; wherein the second type density is determined by the second type The density of the reference signal in the last precoding matrix information subband determined by the coding matrix information subband width;
  • the second type of precoding matrix information subband width is the difference between the last channel state information subband width and the intermediate precoding matrix information subband width in the bandwidth portion, or, the second type precoding The matrix information subband width is a modulo operation result of the last channel state information subband width and the intermediate precoding matrix information subband width in the bandwidth portion.
  • the density of the channel state information reference signal is greater than or equal to the configuration density of the reference signal.
  • the precoding matrix information subband is obtained by mapping the channel state information subband.
  • the manner in which the channel state information subband is mapped to the precoding matrix information subband is determined by the position of the channel state information subband in the bandwidth part.
  • FIG. 6 is a schematic structural diagram of an information receiving device provided by this application.
  • the information receiving device in an embodiment of this application may be integrated in the first communication node.
  • the device includes: a sending module 61, configured to send configuration information to the second communication node; a second receiving module 62, configured to receive precoding matrix information fed back by the second communication node; wherein, the precoding matrix The target frequency band of the information is determined by the indication information of the precoding matrix information subband; the precoding matrix information subband is determined according to the configuration information.
  • the information receiving device provided in this embodiment is used to implement the information receiving method of the embodiment of the present application.
  • the implementation principle and technical effect of the information receiving device provided in this embodiment are similar to the information receiving method of the embodiment of the present application, and will not be repeated here.
  • the apparatus further includes: an encoder configured to determine a data transmission scheme to be transmitted according to the precoding matrix information.
  • the configuration information includes: the target frequency band of the channel state information; the target frequency band of the channel state information is indicated by the channel state information subband; the precoding matrix information subband is in the In the channel state information subband.
  • the second receiving module 62 is configured to determine the precoding matrix information subband width according to the channel state information subband width.
  • the second receiving module 62 is configured to determine the first precoding matrix information subband width in the bandwidth part according to the first channel state information subband width in the bandwidth part; wherein the bandwidth part includes One or more subbands.
  • the second receiving module 62 is configured to configure the first precoding matrix information subband width in the bandwidth portion to be equal to the first channel state information subband width in the bandwidth portion.
  • the second receiving module 62 is configured to determine the first position in the bandwidth part according to the comparison result of the first channel state information subband width in the bandwidth part and the intermediate precoding matrix information subband width.
  • the second receiving module 62 is configured to determine the first preamble in the bandwidth section according to the comparison result of the width of the first channel state information subband in the bandwidth section and the width of the intermediate channel state information subband. Encoding matrix information subband width; wherein, the intermediate channel state information subband is the channel state information subband in the bandwidth part, the intermediate channel state information subband is the non-first channel state information subband, and the non-last channel Status information subband.
  • the second receiving module 62 is configured to determine the last precoding matrix information subband width in the bandwidth portion according to the last channel state information subband width in the bandwidth portion.
  • the second receiving module 62 is configured to configure the last precoding matrix information subband width in the bandwidth part to be equal to the last channel state information subband width in the bandwidth part.
  • the second receiving module 62 is configured to determine the bandwidth in the bandwidth portion based on the comparison result of the last channel state information subband width and the intermediate precoding matrix information subband width in the bandwidth portion The subband width of the last precoding matrix information.
  • the second receiving module 62 is configured to determine the end of the bandwidth portion according to the comparison result of the last channel state information subband width and the intermediate channel state information subband width in the bandwidth portion. Bit precoding matrix information subband width.
  • the configuration information further includes: a starting frequency domain point of the bandwidth part;
  • the second receiving module 62 is configured to determine the first precoding matrix information subband width in the bandwidth part according to the starting frequency domain point of the bandwidth part and the intermediate precoding matrix information subband width.
  • the configuration information further includes: a bandwidth part termination frequency domain point;
  • the second receiving module 62 is configured to determine the last precoding matrix information subband width in the bandwidth part according to the end frequency domain point of the bandwidth part and the intermediate precoding matrix information subband width.
  • the configuration information further includes: the configuration density of the reference signal
  • the second receiving module 62 is configured to determine the subband width of the precoding matrix information according to the configuration density of the reference signal.
  • the second receiving module 62 is configured to determine the first precoding matrix information subband width in the bandwidth part according to the first type density of the reference signal; wherein, the first type density refers to the first type density The density of the reference signal in the first precoding matrix information subband determined by the precoding matrix information subband width;
  • the first type of precoding matrix information subband width is the difference between the first channel state information subband width and the intermediate precoding matrix information subband width in the bandwidth portion, or the first type precoding matrix
  • the information subband width is a modulo operation result of the first channel state information subband width and the intermediate precoding matrix information subband width in the bandwidth portion.
  • the second receiving module 62 is configured to determine the last bit precoding matrix information subband width in the bandwidth part according to the second type density of the reference signal; wherein, the second type density is determined by the second type density. The density of the reference signal in the last precoding matrix information subband determined by the precoding matrix information subband width of the class;
  • the second type of precoding matrix information subband width is the difference between the last channel state information subband width and the intermediate precoding matrix information subband width in the bandwidth portion, or, the second type precoding The matrix information subband width is a modulo operation result of the last channel state information subband width and the intermediate precoding matrix information subband width in the bandwidth portion.
  • the density of the channel state information reference signal is greater than or equal to the configuration density of the reference signal.
  • the precoding matrix information subband is obtained by mapping the channel state information subband.
  • the manner in which the channel state information subband is mapped to the precoding matrix information subband is determined by the position of the channel state information subband in the bandwidth part.
  • FIG. 7 is a schematic structural diagram of a second communication node provided by this application.
  • the second communication node provided by this application includes one or more One processor 71 and a memory 72; the number of processors 71 in the second communication node may be one or more, and one processor 71 is taken as an example in FIG. 7; the memory 72 is used to store one or more programs; the one The one or more programs are executed by the one or more processors 71, so that the one or more processors 71 implement the information feedback method as described in the embodiment of the present invention.
  • the second communication node further includes: a communication device 73, an input device 74, and an output device 75.
  • the processor 71, the memory 72, the communication device 73, the input device 74, and the output device 75 in the second communication node may be connected through a bus or other methods.
  • the connection through a bus is taken as an example.
  • the input device 74 can be used to receive inputted digital or character information, and generate key signal input related to user settings and function control of the second communication node.
  • the output device 75 may include a display device such as a display screen.
  • the communication device 73 may include a receiver and a transmitter.
  • the communication device 73 is configured to transmit and receive information according to the control of the processor 71.
  • the memory 72 can be configured to store software programs, computer-executable programs, and modules, such as the program instructions/modules corresponding to the information feedback method described in the embodiments of the present application (for example, the first information feedback device in the information feedback device).
  • the memory 72 may include a program storage area and a data storage area.
  • the program storage area may store an operating system and an application program required for at least one function; the data storage area may store data created according to the use of the device, and the like.
  • the memory 72 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices.
  • the memory 72 may include memories remotely provided with respect to the processor 71, and these remote memories may be connected to the second communication node through a network. Examples of the aforementioned networks include but are not limited to the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.
  • FIG. 8 is a schematic structural diagram of a first communication node provided by this application.
  • the first communication node provided by this application includes one or more A processor 81 and a memory 82; the processor 81 in the first communication node may be one or more, and one processor 81 is taken as an example in FIG. 8; the memory 82 is used to store one or more programs; the one The one or more programs are executed by the one or more processors 81, so that the one or more processors 81 implement the information receiving method as described in the embodiment of the present invention.
  • the first communication node further includes: a communication device 83, an input device 84, and an output device 85.
  • the processor 81, the memory 82, the communication device 83, the input device 84, and the output device 85 in the first communication node may be connected by a bus or other methods.
  • a bus connection is taken as an example.
  • the input device 84 can be used to receive inputted numeric or character information and generate key signal input related to user settings and function control of the second communication node.
  • the output device 85 may include a display device such as a display screen.
  • the communication device 83 may include a receiver and a transmitter.
  • the communication device 83 is configured to transmit and receive information according to the control of the processor 81.
  • the memory 82 can be configured to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the method for determining position information in the embodiments of the present application (for example, the information receiving device The sending module 61 and the second receiving module 62).
  • the memory 82 may include a program storage area and a data storage area.
  • the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the device, and the like.
  • the memory 82 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices.
  • the memory 82 may include memories remotely provided with respect to the processor 81, and these remote memories may be connected to the first communication node through a network. Examples of the aforementioned networks include but are not limited to the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.
  • An embodiment of the present application further provides a storage medium that stores a computer program that, when executed by a processor, implements the information feedback and information receiving method described in any of the embodiments of the present application. Such as the information feedback method applied to the second communication node and the information receiving method applied to the first communication node.
  • the information feedback method applied to the second communication node includes:
  • the precoding matrix information subband is determined according to the configuration information
  • the information receiving method applied to the first communication node includes:
  • the precoding matrix information subband is based on the configuration information determine.
  • terminal encompasses any suitable type of wireless user equipment, such as mobile phones, portable data processing devices, portable web browsers, or vehicle-mounted mobile stations.
  • the various embodiments of the present application can be implemented in hardware or dedicated circuits, software, logic or any combination thereof.
  • some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor or other computing device, although the application is not limited thereto.
  • the embodiments of the present application may be implemented by executing computer program instructions by a data processor of a mobile device, for example, in a processor entity, or by hardware, or by a combination of software and hardware.
  • Computer program instructions can be assembly instructions, Industry Subversive Alliance (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, status setting data, or written in any combination of one or more programming languages Source code or object code.
  • ISA Industry Subversive Alliance
  • the block diagram of any logical flow in the drawings of the present application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions.
  • the computer program can be stored on the memory.
  • the memory can be of any type suitable for the local technical environment and can be implemented by any suitable data storage technology, such as but not limited to read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), optical Memory devices and systems (Digital Video Disk (DVD) or Portable Compact Disc (CD)), etc.
  • Computer-readable media may include non-transitory storage media.
  • the data processor can be any type suitable for the local technical environment, such as but not limited to general-purpose computers, special-purpose computers, microprocessors, digital signal processors (Digital Signal Processors, DSP), application specific integrated circuits (ASICs) ), programmable logic devices (Field Programmable Gate Array, FPGA) and processors based on multi-core processor architecture.
  • DSP Digital Signal Processors
  • ASICs application specific integrated circuits
  • FPGA Field Programmable Gate Array
  • FPGA Field Programmable Gate Array

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Abstract

本申请提出一种信息反馈方法和装置、信息接收方法和装置及存储介质，该信息反馈方法包括接收第一通信节点发送的配置信息；根据所述配置信息确定预编码矩阵信息；其中，所述预编码矩阵信息的目标频带通过预编码矩阵信息子带指示信息确定；所述预编码矩阵信息子带根据所述配置信息确定；将所述预编码矩阵信息反馈至所述第一通信节点。

Description

信息反馈方法和装置、信息接收方法和装置及存储介质
本申请要求在2019年08月16日提交中国专利局、申请号为201910760870.1的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及无线通信网络，例如涉及一种信息反馈方法和装置、信息接收方法和装置及存储介质。
背景技术
随着社会和科技的发展，无线通信的数据量越来越大，对通信效率的要求也越来越高。通信节点之间的信道状态发送及接收机制无法满足高通信效率的要求。
发明内容
本申请提供一种信息反馈方法和装置、信息接收方法和装置及存储介质，提高无线通信效率。
本申请实施例提供一种信息反馈方法，包括：
接收第一通信节点发送的配置信息；
根据所述配置信息确定预编码矩阵信息；其中，所述预编码矩阵信息的目标频带通过预编码矩阵信息子带的指示信息确定；所述预编码矩阵信息子带根据所述配置信息确定；
将所述预编码矩阵信息反馈至所述第一通信节点。
本申请实施例提供一种信息接收方法，包括：
向第二通信节点发送配置信息；
接收所述第二通信节点反馈的预编码矩阵信息；其中，所述预编码矩阵信息的目标频带通过预编码矩阵信息子带的指示信息确定；所述预编码矩阵信息子带根据所述配置信息确定。
本申请实施例提供一种信息反馈装置，包括：
第一接收模块，设置为接收第一通信节点发送的配置信息；
确定模块，设置为根据所述配置信息确定预编码矩阵信息；其中，所述预 编码矩阵信息的目标频带通过预编码矩阵信息子带的指示信息确定；所述预编码矩阵信息子带根据所述配置信息确定；以及，
反馈模块，设置为将所述预编码矩阵信息反馈至所述第一通信节点。
本申请实施例提供一种信息接收装置，包括：
发送模块，设置为向第二通信节点发送配置信息；
第二接收模块，设置为接收所述第二通信节点反馈的预编码矩阵信息；其中，所述预编码矩阵信息的目标频带通过预编码矩阵信息子带的指示信息确定；所述预编码矩阵信息子带根据所述配置信息确定。
本申请实施例提供一种第二通信节点，包括：
一个或多个处理器；
存储器，用于存储一个或多个程序；
当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现如上述的信息反馈方法。
本申请实施例提供一种第一通信节点，包括：
一个或多个处理器；
存储器，用于存储一个或多个程序；
当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现如上述的信息接收方法。
本申请实施例提供了一种存储介质，所述存储介质存储有计算机程序，所述计算机程序被处理器执行时实现本申请实施例中的任意一种方法。
附图说明
图1为本申请提供的一种信息反馈方法的流程示意图；
图2为本申请提供的一种无线网路的结构示意图；
图3为本申请提供的另一种无线网路的结构示意图；
图4为本申请提供的一种信息接收方法的流程示意图；
图5为本申请提供的一种信息反馈装置的结构示意图；
图6为本申请提供的一种信息接收装置的结构示意图；
图7为本申请提供的一种第二通信节点的结构示意图；
图8为本申请提供的一种第一通信节点的结构示意图。
具体实施方式
下文中将结合附图对本申请的实施例进行详细说明。
在一个示例性实施方式中，图1为本申请提供的一种信息反馈方法的流程示意图。该方法可以适用于使第二通信节点根据第一通信节点发送的配置信息反馈预编码矩阵信息的情况。该方法可以由本申请提供的信息反馈装置执行，该信息反馈装置可以由软件和/或硬件实现，并集成在第二通信节点上。
本申请的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Di vision Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、LIE-A(Advanced long term evolution，先进的长期演进)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、以及第五代移动通信(5th generation mobile networks，5G)系统等，本申请实施例并不限定。
本申请实施例可以用于不同的制式的无线网络。无线接入网络在不同的系统中可包括不同的通信节点。在无线网络中的两个通信节点之间，第一通信节点向第二通信节点传输信号，第二通信节点向第一通信节点反馈信道状态信息，第一通信节点根据接收到的信道状态信息确定传输方案，从而提高信号传输的效率。
图2为本申请提供的一种无线网路的结构示意图。如图2所示，该无线网络包括至少两个基站，第一基站201和第二基站202，以及多个与基站连接的终端203。第一通信节点向第二通信节点传输信号，第二通信节点向第一通信节点反馈信道状态信息，可以是，第一基站201向终端203传输信号，终端203向第一基站201反馈信道状态信息。也可以是，第一基站201向第二基站202传输信号，第二基站202向第一基站201反馈信道状态信息。
图3为本申请提供的另一种无线网路的结构示意图。如图3所示，该无线网络包括至少两个终端，第一终端301和第二终端302。第一通信节点向第二通信节点传输信号，第二通信节点向第一通信节点反馈信道状态信息，还可以是，第一终端301向第二终端302传输信号，第二终端302向第一终端301反馈信道状态信息。
本实施例中，基站可以是能和终端通信的设备。基站可以是任意一种具有无线收发功能的设备。包括但不限于：基站NodeB、演进型基站eNodeB、5G通信系统中的基站、未来通信系统中的基站、WiFi系统中的接入节点、无线中继节点、无线回传节点等。基站还可以是云无线接入网络(cloud radioaccess network，CRAN)场景下的无线控制器；基站还可以是小站，传输节点(transmission reference point，TRP)等，本申请实施例并不限定。
终端是一种具有无线收发功能的设备，可以部署在陆地上，包括室内或室外、手持、穿戴或车载：也可以部署在水面上(如轮船等)：还可以部署在空中(例如飞机、气球和卫星上等)。所述终端可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality，VR)终端、增强现实(Augmented Reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。本申请的实施例对应用场景不做限定。终端有时也可以称为用户设备(user equipment，UE)、接入终端、UE单元、UE站、移动站、移动台、远方站、远程终端、移动设备、UE终端、终端、无线通信设备、UE代理或UE装置等。
在无线通信中，第一通信节点以空分复用的方式向第二通信节点传输多层信号，这样提高了通信的效率。第一通信节点将信号通过预编码矩阵映射到天线端口上传输，传输多层信号；这样所传输的各层信号与预编码矩阵中的各列矢量分别对应。其中一个特殊的情况是，第一通信节点向第二通信节点传输一层信号。其中第一通信节点依据所接收到的第二通信节点反馈的信道状态信息确定空分复用的传输方案。其中，第二通信节点反馈的信道状态信息包括预编码矩阵的信息。
如图1所示，本申请提供的一种信息反馈方法，包括S110、S120和S130。
S110、接收第一通信节点发送的配置信息。
S120、根据配置信息确定预编码矩阵信息；其中，预编码矩阵信息的目标频带通过预编码矩阵信息子带的指示信息确定；预编码矩阵信息子带根据配置信息确定。
S130、将预编码矩阵信息反馈至第一通信节点。
本实施例中的信息反馈方法可以理解为信道状态信息的反馈方法，本实施例提供的信息反馈方法应用于第二通信节点。信道状态信息包括预编码矩阵信 息、信道质量指示信息、或信道强度信息等。
本实施例中，预编码矩阵信息的目标频带是指预编码矩阵信息的适用频带，也就是预编码矩阵信息为预编码矩阵信息的目标频带反馈的。
配置信息可以理解为用于确定信道状态信息的信息。配置信息由第一通信节点发送至第二通信节点。配置信息包括信道状态信息的目标频带。信道状态信息的目标频带是除预编码矩阵信息的其它信道状态信息的适用频带，也就是其它信道状态信息是为信道状态信息的目标频带反馈的。其它信道状态信息包括信道质量指示信息、或信道强度信息等。信道状态信息的目标频带通过信道状态信息子带的指示信息确定，信道状态信息的目标频带由一个或多个信道状态信息子带组成。一个信道状态信息子带是带宽部分(Bandwidth part，BWP)上一段连续的频带，BWP被划分为多个预编码矩阵信息子带。
一个预编码矩阵信息子带是带宽部分(Bandwidth part，BWP)上一段连续的频带，BWP被划分为多个预编码矩阵信息子带，预编码矩阵信息的目标频带通过预编码矩阵信息子带的指示信息确定，即预编码矩阵信息的目标频带由一个或多个预编码矩阵信息子带组成。
BWP是工作载波中一块连续的频带，第二通信节点以带宽部分为单位处于活跃或非活跃状态。
预编码矩阵在频域上的相关性与其它信道状态在频域上的相关性不一致，预编码矩阵使用第一频域颗粒度指示预编码矩阵信息的目标频带，其它信道状态使用第二频域颗粒度指示信道状态信息的目标频带，其中，第一频域颗粒度和所述第二频域颗粒度为不相同的频域颗粒度。这样，可以使预编码矩阵信息和其它信道状态信息适应各自的相关性。
例如，当预编码矩阵在频域上的相关性小于信道质量在频域上的相关性时，则适用于预编码矩阵的频域颗粒度小于适用于信道质量的频域颗粒度。如果预编码矩阵采用适用于信道质量的频域颗粒度，则反馈的预编码矩阵精确度降低；如果信道质量采用适用于预编码矩阵的频域颗粒度，则反馈信道质量需要浪费过多的资源开销。
信道状态信息的目标频带以信道状态信息子带被指示，预编码矩阵信息的目标频带以预编码矩阵信息子带被指示，这样其它信道状态信息与预编码矩阵可以使用不同的频域颗粒度被反馈。这样既节省了开销，又可以同时提高其它信道状态信息的精确度与预编码矩阵的精确度。
在一个示例性实施方式中，所述预编码矩阵信息子带配置在所述信道状态信息子带内。
例如，带宽部分内首位预编码矩阵信息子带包含在带宽部分内首位信道状态信息子带内。首位预编码矩阵信息子带是指一个宽带块内的第一个预编码矩阵信息子带；带宽部分内首位信道状态信息子带是指同一个宽带块内的第一个信道状态信息子带。
又例如，末位预编码矩阵信息子带包含在带宽部分内末位信道状态信息子带内。末位预编码矩阵信息子带是指一个宽带块内的最后一个预编码矩阵信息子带；带宽部分内末位信道状态信息子带是指同一个宽带块内的最后一个信道状态信息子带。
再例如，带宽部分内所有的预编码子带包含在带宽部分内各自对应的信道状态信息子带内。
预编码矩阵信息子带包含在信道状态信息子带内，可以使同一预编码矩阵信息子带下同一预编码矩阵与同一其它信道状态相对应，避免同一预编码矩阵信息子带下同一预编码矩阵与不同其它信道状态相对应；从而降低第二通信节点确定其它信道状态的复杂度，也降低第一通信节点根据信道状态信息确定信号传输方案的复杂度。
在一个示例性实施方式中，所述预编码矩阵信息子带根据所述配置信息确定，包括：根据信道状态信息子带宽度确定所述预编码矩阵信息子带宽度。
子带宽度是指在子带内最高频率和最低频率之间的频率差，也就是子带的带宽，也就是子带的尺寸。
例如，带宽部分内首位预编码矩阵信息子带宽度根据带宽部分内首位信道状态信息子带宽度确定；这样有利于第一个预编码矩阵信息子带包含在第一个信道状态信息子带内。
又例如，带宽部分内末位预编码矩阵信息子带宽度根据带宽部分内末位信道状态信息子带尺寸确定；这样有利于最后一个预编码矩阵信息子带包含在最后一个信道状态信息子带内。
再例如，带宽部分内一个预编码矩阵信息子带宽度根据带宽部分内包含的预编码矩阵信息子带的信道状态信息子带宽度确定；这样有利于预编码矩阵信息子带包含在对应的信道状态信息子带内。
带宽部分内各信道状态信息子带宽度可能不一致，带宽部分内各预编码矩阵信息子带宽度可能不一致；带宽部分内一个预编码矩阵信息子带宽度根据带宽部分内包含的预编码矩阵信息子带的信道状态信息子带宽度确定，这样有利于预编码矩阵信息子带包含在对应的信道状态信息子带内。
在一个示例性实施方式中，所述根据信道状态信息子带宽度确定所述预编 码矩阵信息子带宽度，包括：根据带宽部分内首位信道状态信息子带宽度确定所述带宽部分内首位预编码矩阵信息子带宽度；其中，所述带宽部分包括一个或多个子带。
在一个示例性实施方式中，所述根据带宽部分内首位信道状态信息子带宽度确定所述带宽部分内首位预编码矩阵信息子带宽度，包括：将所述带宽部分内首位预编码矩阵信息子带宽度配置为与所述带宽部分内首位信道状态信息子带宽度相等。
带宽部分内第一个预编码矩阵信息子带宽度与带宽部分内第一个信道状态信息子带宽度相等。这样带宽部分内第一个预编码矩阵信息子带包含在带宽部分内第一个信道状态信息子带内，并且有利于其它预编码子带包含在对应的信道状态信息子带内。
在一个示例性实施方式中，所述根据带宽部分内首位信道状态信息子带宽度确定所述带宽部分内首位预编码矩阵信息子带宽度，包括：根据所述带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的比较结果，确定所述带宽部分内首位预编码矩阵信息子带宽度；其中，所述中间预编码矩阵信息子带是所述带宽部分内的预编码矩阵信息子带；所述中间预编码矩阵信息子带为非首位预编码矩阵信息子带，且非末位预编码矩阵信息子带。
例如，如果带宽部分内首位信道状态信息子带宽度小于或等于中间预编码矩阵信息子带宽度，则带宽部分内首位预编码矩阵信息子带宽度与带宽部分内首位信道状态信息子带宽度相等。
又例如，如果带宽部分内首位信道状态信息子带宽度大于中间预编码矩阵信息子带宽度，则带宽部分内首位预编码矩阵信息子带宽度等于带宽部分内首位信道状态信息子带宽度与其它预编码矩阵信息子带宽度的差。
又例如，如果带宽部分内首位信道状态信息子带宽度小于或等于中间预编码矩阵信息子带宽度与一个预定义系数的积，那么带宽部分内首位预编码矩阵信息子带宽度与带宽部分内首位信道状态信息子带宽度相等。
又例如，如果带宽部分内首位信道状态信息子带宽度大于中间预编码矩阵信息子带宽度与一个预定义系数的积，那么带宽部分内首位预编码矩阵信息子带宽度等于带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的差。
又例如，如果带宽部分内首位信道状态信息子带宽度小于或等于中间预编码矩阵信息子带宽度与一个预定义系数的积，那么带宽部分内首位预编码矩阵信息子带宽度等于带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信 息子带宽度的和。
又例如，如果带宽部分内首位信道状态信息子带宽度小于或等于中间预编码矩阵信息子带宽度与一个预定义宽度的和，那么带宽部分内首位预编码矩阵信息子带宽度与带宽部分内首位信道状态信息子带宽度相等。
又例如，如果带宽部分内首位信道状态信息子带宽度大于中间预编码矩阵信息子带宽度与一个预定义宽度的和，那么带宽部分内首位预编码矩阵信息子带宽度等于带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的差。
又例如，如果带宽部分内首位信道状态信息子带宽度小于或等于中间预编码矩阵信息子带宽度与一个预定义宽度的和，那么带宽部分内首位预编码矩阵信息子带宽度等于带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的和。
又例如，带宽部分内首位预编码矩阵信息子带宽度根据首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的取模操作确定，其中被除数是首位信道状态信息子带宽度，除数是中间预编码矩阵信息子带宽度。
在一个示例性实施方式中，所述根据带宽部分内首位信道状态信息子带宽度确定所述带宽部分内首位预编码矩阵信息子带宽度，包括：根据所述带宽部分内首位信道状态信息子带宽度与中间信道状态信息子带宽度的比较结果，确定所述带宽部分内首位预编码矩阵信息子带宽度；其中，所述中间信道状态信息子带为带宽部分内的信道状态信息子带，所述中间信道状态信息子带为非首位信道状态信息子带，且非末位信道状态信息子带。这样可以避免第一个预编码矩阵信息子带宽度比预定义的频域颗粒度过大或过小，以保障预编码矩阵信息子带宽度的均衡性。
例如，如果带宽部分内首位信道状态信息子带宽度小于或等于中间信道状态信息子带宽度与一个预定义系数的积，那么带宽部分内首位预编码矩阵信息子带宽度与带宽部分内首位信道状态信息子带宽度相等。
又例如，如果带宽部分内首位信道状态信息子带宽度大于中间信道状态信息子带宽度与一个预定义系数的积，那么带宽部分内首位预编码矩阵信息子带宽度等于带宽部分内首位信道状态信息子带宽度与所述积的差。
又例如，如果带宽部分内首位信道状态信息子带宽度小于或等于中间信道状态信息子带宽度与一个预定义系数的积，那么带宽部分内首位预编码矩阵信息子带宽度等于带宽部分内首位信道状态信息子带宽度与所述积的和。
需要说明的是，中间信道状态信息子带宽度与一个预定义系数的积就是预 定义的频域颗粒度，这个频域颗粒度与中间信道状态信息子带宽度相关联，并可以由一个预定义的系数调整与中间信道状态信息子带宽度相关联的差异。中间信道状态信息子带宽度可以是第一通信节点配置的信道状态信息子带宽度。
再例如，带宽部分内首位预编码矩阵信息子带宽度根据首位信道状态信息子带宽度与预定义的频域颗粒度的取模操作确定，其中被除数是首位信道状态信息子带宽度，除数是预定义的频域颗粒度。
在一个示例性实施方式中，所述根据所述信道状态信息子带宽度确定所述预编码矩阵信息子带宽度，包括：根据所述带宽部分内末位信道状态信息子带宽度确定所述带宽部分内末位预编码矩阵信息子带宽度。
例如，带宽部分内末位预编码矩阵信息子带宽度与带宽部分内末位信道状态信息子带宽度相等。这样带宽部分内末位预编码矩阵信息子带包含在带宽部分内末位信道状态信息子带内，并且有利于中间预编码子带包含在对应的信道状态信息子带内。
再例如，带宽部分内末位预编码矩阵信息子带宽度根据带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的比较结果确定；中间预编码矩阵信息子带是带宽部分内的预编码矩阵信息子带，但既不是第一个预编码矩阵信息子带，也不是末位预编码矩阵信息子带。这样可以避免末位预编码矩阵信息子带宽度比中间预编码子带宽度过大或过小，以保障预编码矩阵信息子带宽度的均衡性。
在一个示例性实施方式中，所述根据带宽部分内末位信道状态信息子带宽度确定所述带宽部分内末位预编码矩阵信息子带宽度，包括：将所述带宽部分内末位预编码矩阵信息子带宽度配置为与所述带宽部分内末位信道状态信息子带宽度相等。
在一个示例性实施方式中，所述根据带宽部分内末位信道状态信息子带宽度确定所述带宽部分内末位预编码矩阵信息子带宽度，包括：根据所述带宽部分内末位信道状态信息子带宽度与中间信道状态信息子带宽度的比较结果，确定所述带宽部分内末位预编码矩阵信息子带宽度。
这样可以避免最后一个预编码矩阵信息子带宽度比预定义的颗粒度过大或过小，以保障预编码矩阵信息子带宽度的均衡性。
例如，如果带宽部分内最后一个信道状态信息子带尺寸小于或等于其它信道状态信息子带尺寸与一个预定义系数的积，那么带宽部分内最后一个预编码矩阵信息子带尺寸与带宽部分内最后一个信道状态信息子带尺寸相等。
再例如，如果带宽部分内末位信道状态信息子带宽度大于中间信道状态信 息子带宽度与一个预定义系数的积，那么带宽部分内末位预编码矩阵信息子带宽度等于带宽部分内末位信道状态信息子带宽度与所述积的差。
又例如，如果带宽部分内末位信道状态信息子带宽度小于或等于中间信道状态信息子带宽度与一个预定义系数的积，那么带宽部分内末位预编码矩阵信息子带宽度等于带宽部分内末位信道状态信息子带宽度与所述积的和。
中间信道状态信息子带宽度与一个预定义系数的积就是预定义的频域颗粒度，这个频域颗粒度与中间信道状态信息子带宽度相关联，并可以由一个预定义系数调整与中间信道状态信息子带宽度相关联的差异。中间信道状态信息子带宽度可以是第一通信节点配置的信道状态信息子带宽度。
再例如，带宽部分内末位预编码矩阵信息子带宽度根据末位信道状态信息子带宽度与预定义的颗粒度的取模操作确定，其中被除数是末位信道状态信息子带宽度，除数是预定义的颗粒度。
在一个示例性实施方式中，所述根据带宽部分内末位信道状态信息子带宽度确定所述带宽部分内末位预编码矩阵信息子带宽度，包括：根据所述带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的比较结果，确定所述带宽部分内末位预编码矩阵信息子带宽度。
例如，如果带宽部分内末位信道状态信息子带宽度小于或等于中间预编码矩阵信息子带宽度，那么带宽部分内末位预编码矩阵信息子带宽度与带宽部分内末位信道状态信息子带宽度相等。
又例如，如果带宽部分内末位信道状态信息子带宽度大于中间预编码矩阵信息子带宽度，那么带宽部分内末位预编码矩阵信息子带宽度等于带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的差。
又例如，如果带宽部分内末位信道状态信息子带宽度小于或等于中间预编码矩阵信息子带宽度与一个预定义系数的积，那么带宽部分内末位预编码矩阵信息子带宽度与带宽部分内末位信道状态信息子带宽度相等。
又例如，如果带宽部分内末位信道状态信息子带宽度大于中间预编码矩阵信息子带宽度与一个预定义系数的积，那么带宽部分内末位预编码矩阵信息子带宽度等于带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的差。
又例如，如果带宽部分内末位信道状态信息子带宽度小于或等于中间预编码矩阵信息子带宽度与一个预定义系数的积，那么带宽部分内末位预编码矩阵信息子带宽度等于带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的和。
又例如，如果带宽部分内末位信道状态信息子带宽度小于或等于中间预编码矩阵信息子带宽度与一个预定义宽度的和，那么带宽部分内末位预编码矩阵信息子带宽度与带宽部分内末位信道状态信息子带宽度相等。
又例如，如果带宽部分内末位信道状态信息子带宽度大于中间预编码矩阵信息子带宽度与一个预定义宽度的和，那么带宽部分内末位预编码矩阵信息子带宽度等于带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的差。
又例如，如果带宽部分内末位信道状态信息子带宽度小于或等于中间预编码矩阵信息子带宽度与一个预定义宽度的和，那么带宽部分内末位预编码矩阵信息子带宽度等于带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的和。
又例如，带宽部分内末位预编码矩阵信息子带宽度根据末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的取模操作确定，其中被除数是末位信道状态信息子带宽度，除数是中间预编码矩阵信息子带宽度。
在一个示例性实施方式中，所述配置信息还包括：带宽部分起始频域点；所述预编码矩阵信息子带根据所述配置信息确定，包括：根据带宽部分起始频域点与中间预编码矩阵信息子带宽度，确定带宽部分内首位预编码矩阵信息子带宽度。
例如，带宽部分内首位预编码矩阵信息子带宽度为中间预编码矩阵信息子带尺寸与一个模运算结果的差；其中所述模运算的被除数是带宽部分起始频域位置，除数是其它预编码矩阵信息子带宽度。
在一个示例性实施方式中，所述配置信息还包括：带宽部分终止频域点；所述预编码矩阵信息子带根据所述配置信息确定，包括：根据带宽部分终止频域点与中间预编码矩阵信息子带宽度，确定带宽部分内末位预编码矩阵信息子带宽度。
例如，带宽部分内末位预编码矩阵信息子带宽度为带宽部分终止频域位置与中间预编码矩阵信息子带宽度的模运算结果；其中所述模运算的被除数是带宽部分终止频域位置，除数是其它预编码矩阵信息子带尺寸。
又例如，如果上述的模运算结果为0，带宽部分内末位预编码矩阵信息子带宽度为中间预编码矩阵信息子带尺寸。
再例如，如果上述模运算结果不为0，带宽部分内末位预编码矩阵信息子带宽度为带宽部分终止频域位置与中间预编码矩阵信息子带尺寸的模运算结果。
在一个示例性实施方式中，所述配置信息还包括：参考信号的配置密度； 所述预编码矩阵信息子带根据所述配置信息确定，包括：根据所述参考信号的配置密度确定所述预编码矩阵信息子带宽度。
在本实施例中，参考信号的配置密度是指与反馈报告相关联的信道状态信息参考信号的配置密度。
在一个示例性实施方式中，带宽部分内首位预编码矩阵信息子带宽度根据与反馈报告相关联的信道状态信息参考信号的配置密度确定。
第二通信节点通过对与反馈报告相关联的信道状态信息参考信号的测量确定信道状态信息，并进行反馈。所述参考信号的配置密度由第一通信节点确定。
带宽部分内首位预编码矩阵信息子带宽度根据与反馈报告相关联的信道状态信息参考信号的配置密度确定；这样，可以让首位预编码矩阵信息子带内的参考信号的密度不低于所述参考信号的配置密度，并保持首位预编码矩阵信息子带为较小的颗粒度。
例如，如果所述参考信号的配置密度等于1，那么带宽部分内首位预编码矩阵信息子带宽度根据带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的比较结果确定；所述中间预编码矩阵信息子带是带宽部分内的预编码矩阵信息子带，但既不是首位预编码矩阵信息子带，也不是末位预编码矩阵信息子带。这样可以避免首位预编码矩阵信息子带宽度比中间预编码子带宽度过大或过小，以保障预编码矩阵信息子带宽度的均衡性。
带宽部分内首位矩阵信息子带宽度根据带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的比较结果确定，其方法举例如下：
例如，如果带宽部分内首位信道状态信息子带宽度小于或等于中间预编码矩阵信息子带宽度，则带宽部分内首位预编码矩阵信息子带宽度与带宽部分内首位信道状态信息子带宽度相等。
又例如，如果带宽部分内首位信道状态信息子带宽度大于中间预编码矩阵信息子带宽度，则带宽部分内首位预编码矩阵信息子带宽度等于带宽部分内首位信道状态信息子带宽度与其它预编码矩阵信息子带宽度的差。
又例如，如果带宽部分内首位信道状态信息子带宽度小于或等于中间预编码矩阵信息子带宽度与一个预定义系数的积，那么带宽部分内首位预编码矩阵信息子带宽度与带宽部分内首位信道状态信息子带宽度相等。
又例如，如果带宽部分内首位信道状态信息子带宽度大于中间预编码矩阵信息子带宽度与一个预定义系数的积，那么带宽部分内首位预编码矩阵信息子带宽度等于带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的差。
又例如，如果带宽部分内首位信道状态信息子带宽度小于或等于中间预编码矩阵信息子带宽度与一个预定义系数的积，那么带宽部分内首位预编码矩阵信息子带宽度等于带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的和。
又例如，如果带宽部分内首位信道状态信息子带宽度小于或等于中间预编码矩阵信息子带宽度与一个预定义宽度的和，那么带宽部分内首位预编码矩阵信息子带宽度与带宽部分内首位信道状态信息子带宽度相等。
又例如，如果带宽部分内首位信道状态信息子带宽度大于中间预编码矩阵信息子带宽度与一个预定义宽度的和，那么带宽部分内首位预编码矩阵信息子带宽度等于带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的差。
又例如，如果带宽部分内首位信道状态信息子带宽度小于或等于中间预编码矩阵信息子带宽度与一个预定义宽度的和，那么带宽部分内首位预编码矩阵信息子带宽度等于带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的和。
又例如，带宽部分内首位预编码矩阵信息子带宽度根据首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的取模操作确定，其中被除数是首位信道状态信息子带宽度，除数是中间预编码矩阵信息子带宽度。
在本实施例中，如果所述参考信号的配置密度等于1，那么带宽部分内首位预编码矩阵信息子带宽度为中间预编码矩阵信息子带宽度与一个模运算结果的差；其中所述模运算的被除数是带宽部分起始频域位置，除数是中间预编码矩阵信息子带宽度。
例如，如果所述参考信号的配置密度小于1，那么带宽部分内首位预编码矩阵信息子带宽度与带宽部分内首位信道状态信息子带宽度相等。
在一个示例性实施方式中，带宽部分内末位预编码矩阵信息子带宽度根据与反馈报告相关联的信道状态信息参考信号的配置密度确定。
第二通信节点通过对与反馈报告相关联的信道状态信息参考信号的测量确定信道状态信息，并进行反馈。所述参考信号的配置密度由第一通信节点确定。
带宽部分内末位编码矩阵信息子带宽度根据与反馈报告相关联的信道状态信息参考信号的配置密度确定；这样，可以让最后一个预编码矩阵信息子带内的参考信号的密度不低于所述信道状态信息参考信号的配置密度，并保持最后一个预编码矩阵信息子带为较小的颗粒度。
如果所述的参考信号的配置密度等于1，那么带宽部分内末位预编码矩阵信 息子带宽度根据带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的比较结果确定；所述中间预编码矩阵信息子带是带宽部分内的预编码矩阵信息子带，但既不是第一个预编码矩阵信息子带，也不是末位预编码矩阵信息子带。这样可以避免末位预编码矩阵信息子带宽度比中间预编码子带宽度过大或过小，以保障预编码矩阵信息子带宽度的均衡性。
带宽部分内末位预编码矩阵信息子带宽度根据带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的比较结果确定，其方法举例如下：
例如，如果带宽部分内末位信道状态信息子带宽度小于或等于中间预编码矩阵信息子带宽度，那么带宽部分内末位预编码矩阵信息子带宽度与带宽部分内末位信道状态信息子带宽度相等。
又例如，如果带宽部分内末位信道状态信息子带宽度大于中间预编码矩阵信息子带宽度，那么带宽部分内末位预编码矩阵信息子带宽度等于带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的差。
又例如，如果带宽部分内末位信道状态信息子带宽度小于或等于中间预编码矩阵信息子带宽度与一个预定义系数的积，那么带宽部分内末位预编码矩阵信息子带宽度与带宽部分内末位信道状态信息子带宽度相等。
又例如，如果带宽部分内末位信道状态信息子带宽度大于中间预编码矩阵信息子带宽度与一个预定义系数的积，那么带宽部分内末位预编码矩阵信息子带宽度等于带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的差。
又例如，如果带宽部分内末位信道状态信息子带宽度小于或等于中间预编码矩阵信息子带宽度与一个预定义系数的积，那么带宽部分内末位预编码矩阵信息子带宽度等于带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的和。
又例如，如果带宽部分内末位信道状态信息子带宽度小于或等于中间预编码矩阵信息子带宽度与一个预定义宽度的和，那么带宽部分内末位预编码矩阵信息子带宽度与带宽部分内末位信道状态信息子带宽度相等。
又例如，如果带宽部分内末位信道状态信息子带宽度大于中间预编码矩阵信息子带宽度与一个预定义宽度的和，那么带宽部分内末位预编码矩阵信息子带宽度等于带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的差。
又例如，如果带宽部分内末位信道状态信息子带宽度小于或等于中间预编码矩阵信息子带宽度与一个预定义宽度的和，那么带宽部分内末位预编码矩阵 信息子带宽度等于带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的和。
又例如，带宽部分内末位预编码矩阵信息子带宽度根据末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的取模操作确定，其中被除数是末位信道状态信息子带宽度，除数是中间预编码矩阵信息子带宽度。
如果所述的参考信号的配置密度等于1，那么带宽部分内末位预编码矩阵信息子带宽度为中间预编码矩阵信息子带宽度与一个模运算结果的差；其中所述模运算的被除数是带宽部分起始频域位置，除数是中间预编码矩阵信息子带尺寸。
例如，如果所述参考信号的配置密度小于1，那么带宽部分内末位预编码矩阵信息子带宽度与带宽部分内最后一个信道状态信息子带宽度相等。
在一个示例性实施方式中，所述预编码矩阵信息子带根据所述配置信息确定，包括：根据参考信号的第一类密度确定带宽部分内首位预编码矩阵信息子带宽度；其中，所述第一类密度是指由第一类预编码矩阵信息子带宽度确定的首个预编码矩阵信息子带内参考信号的密度。
其中，所述第一类预编码矩阵信息子带宽度为所述带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的差值，或，所述第一类预编码矩阵信息子带宽度为所述带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的模运算结果。
这样，可以让末位预编码矩阵信息子带内的参考信号的密度不低于所述参考信号的配置密度，并保持第一个预编码矩阵信息子带为较小的颗粒度。
例如，如果与反馈报告相关联的信道状态信息参考信号的第一类密度小于与反馈报告相关联的信道状态信息参考信号的配置密度，那么带宽部分内第一个预编码矩阵信息子带宽度与带宽部分内第一个信道状态信息子带宽度相等。
例如，如果与反馈报告相关联的信道状态信息参考信号的第一类密度大于或等于与反馈报告相关联的信道状态信息参考信号的配置密度，那么带宽部分内第一个预编码矩阵信息子带宽度等于第一类预编码矩阵信息子带宽度。
需要说明的是，在任一预编码矩阵信息子带内，所述信道状态信息参考信号的密度大于或等于所述参考信号的配置密度。
在一个示例性实施方式中，所述预编码矩阵信息子带由信道状态信息子带映射得到。一个信道状态信息子带映射为整数个预编码矩阵信息子带。
在一个示例性实施方式中，所述信道状态信息子带映射预编码矩阵信息子 带的方式由信道状态信息子带在带宽部分中的位置确定。
例如：带宽部分内第一个信道状态信息子带映射成一个预编码矩阵信息子带；带宽部分内最后一个信道状态信息子带映射成一个预编码矩阵信息子带；带宽部分内其它信道状态信息子带映射为M个预编码矩阵信息子带，其中，M由第一通信节点的配置参数确定，M为正整数。
例如，带宽部分内第一个信道状态信息子带根据第一个信道状态信息子带的尺寸映射成F个预编码矩阵信息子带；带宽部分内最后一个信道状态信息子带根据最后一个信道状态信息子带的尺寸映射成F个预编码矩阵信息子带；带宽部分内其它信道状态信息子带映射为M个预编码矩阵信息子带，M由第一通信节点的配置参数确定。
在一个示例性实施例方式中，本申请还提供了一种信息接收方法，该方法应用于第一通信节点。该方法可以由信息接收装置执行，该信息接收装置可以由软件和/或硬件实现，并集成在第一通信节点上。该方法可以适用于第一通信节点发送配置信息并接收第二通信接点反馈信息的情况。本实施例尚未详尽的内容可以参见上述实施例，此处不作赘述。
图4为本申请提供的一种信息接收方法的流程示意图，如图4所示，本申请提供的信息接收方法，包括S410和S420。
S410、向第二通信节点发送配置信息；
S420、接收所述第二通信节点反馈的预编码矩阵信息；其中，所述预编码矩阵信息的目标频带通过预编码矩阵信息子带的指示信息确定；所述预编码矩阵信息子带根据所述配置信息确定。
本申请提供的一种信息接收方法，向第二通信节点发送配置信息，接收第二通信节点反馈的预编码矩阵信息，其中，预编码矩阵信息的目标频带通过预编码矩阵信息子带的指示信息确定，预编码矩阵信息子带根据配置信息确定。信道状态信息的目标频带以信道状态信息子带被指示，预编码矩阵信息的目标频带以预编码矩阵信息子带被指示，这样其它信道状态信息与预编码矩阵可以分别使用一种频域颗粒度被反馈。这样既节省了开销，又提高了其它信道状态信息的精度与预编码矩阵的精确度。
在上述实施例的基础上，提出了上述实施例的变型实施例，在此需要说明的是，为了使描述简要，在变型实施例中仅描述与上述实施例的不同之处。
在一个示例性实施例方式中，在所述接收所述第二通信节点反馈的预编码矩阵信息之后，还包括：根据所述预编码矩阵信息确定待传输数据的传输方案。
在一个示例性实施例方式中，所述配置信息包括：信道状态信息的目标频带；所述信道状态信息的目标频带通过信道状态信息子带方式指示；所述预编码矩阵信息子带在所述信道状态信息子带内。
在一个示例性实施例方式中，所述预编码矩阵信息子带根据所述配置信息确定，包括：根据信道状态信息子带宽度确定所述预编码矩阵信息子带宽度。
在一个示例性实施例方式中，所述根据信道状态信息子带宽度确定所述预编码矩阵信息子带宽度，包括：根据带宽部分内首位信道状态信息子带宽度确定所述带宽部分内首位预编码矩阵信息子带宽度；其中，所述带宽部分包括一个或多个子带。
在一个示例性实施例方式中，所述根据带宽部分内首位信道状态信息子带宽度确定所述带宽部分内首位预编码矩阵信息子带宽度，包括：将所述带宽部分内首位预编码矩阵信息子带宽度配置为与所述带宽部分内首位信道状态信息子带宽度相等。
在一个示例性实施例方式中，所述根据带宽部分内首位信道状态信息子带宽度确定所述带宽部分内首位预编码矩阵信息子带宽度，包括：根据所述带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的比较结果，确定所述带宽部分内首位预编码矩阵信息子带宽度；其中，所述中间预编码矩阵信息子带是所述带宽部分内的预编码矩阵信息子带；所述中间预编码矩阵信息子带为非首位预编码矩阵信息子带，且非末位预编码矩阵信息子带。
在一个示例性实施例方式中，所述根据带宽部分内首位信道状态信息子带宽度确定所述带宽部分内首位预编码矩阵信息子带宽度，包括：根据所述带宽部分内首位信道状态信息子带宽度与中间信道状态信息子带宽度的比较结果，确定所述带宽部分内首位预编码矩阵信息子带宽度；其中，所述中间信道状态信息子带为带宽部分内的信道状态信息子带，所述中间信道状态信息子带为非首位信道状态信息子带，且非末位信道状态信息子带。
在一个示例性实施例方式中，所述根据所述信道状态信息子带宽度确定所述预编码矩阵信息子带宽度，包括：根据所述带宽部分内末位信道状态信息子带宽度确定所述带宽部分内末位预编码矩阵信息子带宽度。
在一个示例性实施例方式中，所述根据带宽部分内末位信道状态信息子带宽度确定所述带宽部分内末位预编码矩阵信息子带宽度，包括：将所述带宽部分内末位预编码矩阵信息子带宽度配置为与所述带宽部分内末位信道状态信息子带宽度相等。
在一个示例性实施例方式中，所述根据带宽部分内末位信道状态信息子带 宽度确定所述带宽部分内末位预编码矩阵信息子带宽度，包括：根据所述带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的比较结果，确定所述带宽部分内末位预编码矩阵信息子带宽度。
在一个示例性实施例方式中，所述根据带宽部分内末位信道状态信息子带宽度确定所述带宽部分内末位预编码矩阵信息子带宽度，包括：根据所述带宽部分内末位信道状态信息子带宽度与中间信道状态信息子带宽度的比较结果，确定所述带宽部分内末位预编码矩阵信息子带宽度。
在一个示例性实施例方式中，所述配置信息还包括：带宽部分起始频域点；
所述预编码矩阵信息子带根据所述配置信息确定，包括：根据带宽部分起始频域点与中间预编码矩阵信息子带宽度，确定带宽部分内首位预编码矩阵信息子带宽度。
在一个示例性实施例方式中，所述配置信息还包括：带宽部分终止频域点；
所述预编码矩阵信息子带根据所述配置信息确定，包括：根据带宽部分终止频域点与中间预编码矩阵信息子带宽度，确定带宽部分内末位预编码矩阵信息子带宽度。
在一个示例性实施例方式中，所述配置信息还包括：参考信号的配置密度；
所述预编码矩阵信息子带根据所述配置信息确定，包括：根据所述参考信号的配置密度确定所述预编码矩阵信息子带宽度。
在一个示例性实施例方式中，所述预编码矩阵信息子带根据所述配置信息确定，包括：根据参考信号的第一类密度确定带宽部分内首位预编码矩阵信息子带宽度；其中，所述第一类密度是指由第一类预编码矩阵信息子带宽度确定的首个预编码矩阵信息子带内参考信号的密度；
其中，所述第一类预编码矩阵信息子带宽度为所述带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的差值，或，所述第一类预编码矩阵信息子带宽度为所述带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的模运算结果。
在一个示例性实施例方式中，所述预编码矩阵信息子带根据所述配置信息确定，包括：根据参考信号的第二类密度确定带宽部分内末位预编码矩阵信息子带宽度；其中，所述第二类密度由第二类预编码矩阵信息子带宽度确定的末位预编码矩阵信息子带内参考信号的密度；
其中，所述第二类预编码矩阵信息子带宽度为所述带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的差值，或，所述第二类预编 码矩阵信息子带宽度为所述带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的模运算结果。
在一个示例性实施例方式中，在任一预编码矩阵信息子带内，所述信道状态信息参考信号的密度大于或等于所述参考信号的配置密度。
在一个示例性实施例方式中，所述预编码矩阵信息子带由信道状态信息子带映射得到。
在一个示例性实施例方式中，所述信道状态信息子带映射预编码矩阵信息子带的方式由信道状态信息子带在带宽部分中的位置确定。
本申请提供了一种信息反馈装置，图5为本申请提供的一种信息反馈装置的结构示意图，如图5所示，本申请实施例提供的一种信息反馈装置，可以集成在第二通信节点上，该装置包括：第一接收模块51、确定模块52以及反馈模块53。
第一接收模块51，设置为接收第一通信节点发送的配置信息；
确定模块52，设置为根据所述配置信息确定预编码矩阵信息；其中，所述预编码矩阵信息的目标频带通过预编码矩阵信息子带的指示信息确定；所述预编码矩阵信息子带根据所述配置信息确定；以及，
反馈模块53，设置为将所述预编码矩阵信息反馈至所述第一通信节点。
本实施例提供的信息反馈装置用于本申请实施例的信息反馈方法，本实施例提供的信息反馈装置实现原理和技术效果与本申请实施例的信息反馈方法类似，此处不再赘述。
在一个示例性实施例方式中，所述配置信息包括：信道状态信息的目标频带；所述信道状态信息的目标频带通过信道状态信息子带方式指示；所述预编码矩阵信息子带在所述信道状态信息子带内。
在一个示例性实施例方式中，确定模块52，设置为根据信道状态信息子带宽度确定所述预编码矩阵信息子带宽度。
在一个示例性实施例方式中，确定模块52，设置为根据带宽部分内首位信道状态信息子带宽度确定所述带宽部分内首位预编码矩阵信息子带宽度；其中，所述带宽部分包括一个或多个子带。
在一个示例性实施例方式中，确定模块52，设置为将所述带宽部分内首位预编码矩阵信息子带宽度配置为与所述带宽部分内首位信道状态信息子带宽度相等。
在一个示例性实施例方式中，确定模块52，设置为根据所述带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的比较结果，确定所述带宽部分内首位预编码矩阵信息子带宽度；其中，所述中间预编码矩阵信息子带是所述带宽部分内的预编码矩阵信息子带；所述中间预编码矩阵信息子带为非首位预编码矩阵信息子带，且非末位预编码矩阵信息子带。
在一个示例性实施例方式中，确定模块52，设置为根据所述带宽部分内首位信道状态信息子带宽度与中间信道状态信息子带宽度的比较结果，确定所述带宽部分内首位预编码矩阵信息子带宽度；其中，所述中间信道状态信息子带为带宽部分内的信道状态信息子带，所述中间信道状态信息子带为非首位信道状态信息子带，且非末位信道状态信息子带。
在一个示例性实施例方式中，确定模块52，设置为根据所述带宽部分内末位信道状态信息子带宽度确定所述带宽部分内末位预编码矩阵信息子带宽度。
在一个示例性实施例方式中，确定模块52，设置为将所述带宽部分内末位预编码矩阵信息子带宽度配置为与所述带宽部分内末位信道状态信息子带宽度相等。
在一个示例性实施例方式中，确定模块52，设置为根据所述带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的比较结果，确定所述带宽部分内末位预编码矩阵信息子带宽度。
在一个示例性实施例方式中，确定模块52，设置为根据所述带宽部分内末位信道状态信息子带宽度与中间信道状态信息子带宽度的比较结果，确定所述带宽部分内末位预编码矩阵信息子带宽度。
在一个示例性实施例方式中，所述配置信息还包括：带宽部分起始频域点；
确定模块52，设置为根据带宽部分起始频域点与中间预编码矩阵信息子带宽度，确定带宽部分内首位预编码矩阵信息子带宽度。
在一个示例性实施例方式中，所述配置信息还包括：带宽部分终止频域点；
确定模块52，设置为根据带宽部分终止频域点与中间预编码矩阵信息子带宽度，确定带宽部分内末位预编码矩阵信息子带宽度。
在一个示例性实施例方式中，所述配置信息还包括：参考信号的配置密度；
确定模块52，设置为根据所述参考信号的配置密度确定所述预编码矩阵信息子带宽度。
在一个示例性实施例方式中，确定模块52，设置为根据参考信号的第一类密度确定带宽部分内首位预编码矩阵信息子带宽度；其中，所述第一类密度是 指由第一类预编码矩阵信息子带宽度确定的首个预编码矩阵信息子带内参考信号的密度；
其中，所述第一类预编码矩阵信息子带宽度为所述带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的差值，或，所述第一类预编码矩阵信息子带宽度为所述带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的模运算结果。
在一个示例性实施例方式中，确定模块52，设置为根据参考信号的第二类密度确定带宽部分内末位预编码矩阵信息子带宽度；其中，所述第二类密度由第二类预编码矩阵信息子带宽度确定的末位预编码矩阵信息子带内参考信号的密度；
其中，所述第二类预编码矩阵信息子带宽度为所述带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的差值，或，所述第二类预编码矩阵信息子带宽度为所述带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的模运算结果。
在一个示例性实施例方式中，在任一预编码矩阵信息子带内，所述信道状态信息参考信号的密度大于或等于所述参考信号的配置密度。
在一个示例性实施例方式中，所述预编码矩阵信息子带由信道状态信息子带映射得到。
在一个示例性实施例方式中，所述信道状态信息子带映射预编码矩阵信息子带的方式由信道状态信息子带在带宽部分中的位置确定。
本申请还提供了一种信息接收装置，图6为本申请提供的一种信息接收装置的结构示意图，如图6所示，本申请实施例中的信息接收装置，可以集成在第一通信节点上，该装置包括：发送模块61，设置为向第二通信节点发送配置信息；第二接收模块62，设置为接收所述第二通信节点反馈的预编码矩阵信息；其中，所述预编码矩阵信息的目标频带通过预编码矩阵信息子带的指示信息确定；所述预编码矩阵信息子带根据所述配置信息确定。
本实施例提供的信息接收装置用于实现本申请实施例的信息接收方法，本实施例提供的信息接收装置实现原理和技术效果与本申请实施例的信息接收方法类似，此处不再赘述。
在一个示例性实施例方式中，所述装置还包括：编码器，被配置为根据所述预编码矩阵信息确定待传输数据传输方案。
在一个示例性实施例方式中，所述配置信息包括：信道状态信息的目标频带；所述信道状态信息的目标频带通过信道状态信息子带方式指示；所述预编码矩阵信息子带在所述信道状态信息子带内。
在一个示例性实施例方式中，第二接收模块62，设置为根据信道状态信息子带宽度确定所述预编码矩阵信息子带宽度。
在一个示例性实施例方式中，第二接收模块62，设置为根据带宽部分内首位信道状态信息子带宽度确定所述带宽部分内首位预编码矩阵信息子带宽度；其中，所述带宽部分包括一个或多个子带。
在一个示例性实施例方式中，第二接收模块62，设置为将所述带宽部分内首位预编码矩阵信息子带宽度配置为与所述带宽部分内首位信道状态信息子带宽度相等。
在一个示例性实施例方式中，第二接收模块62，设置为根据所述带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的比较结果，确定所述带宽部分内首位预编码矩阵信息子带宽度；其中，所述中间预编码矩阵信息子带是所述带宽部分内的预编码矩阵信息子带；所述中间预编码矩阵信息子带为非首位预编码矩阵信息子带，且非末位预编码矩阵信息子带。
在一个示例性实施例方式中，第二接收模块62，设置为根据所述带宽部分内首位信道状态信息子带宽度与中间信道状态信息子带宽度的比较结果，确定所述带宽部分内首位预编码矩阵信息子带宽度；其中，所述中间信道状态信息子带为带宽部分内的信道状态信息子带，所述中间信道状态信息子带为非首位信道状态信息子带，且非末位信道状态信息子带。
在一个示例性实施例方式中，第二接收模块62，设置为根据所述带宽部分内末位信道状态信息子带宽度确定所述带宽部分内末位预编码矩阵信息子带宽度。
在一个示例性实施例方式中，第二接收模块62，设置为将所述带宽部分内末位预编码矩阵信息子带宽度配置为与所述带宽部分内末位信道状态信息子带宽度相等。
在一个示例性实施例方式中，第二接收模块62，设置为根据所述带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的比较结果，确定所述带宽部分内末位预编码矩阵信息子带宽度。
在一个示例性实施例方式中，第二接收模块62，设置为根据所述带宽部分内末位信道状态信息子带宽度与中间信道状态信息子带宽度的比较结果，确定所述带宽部分内末位预编码矩阵信息子带宽度。
在一个示例性实施例方式中，所述配置信息还包括：带宽部分起始频域点；
第二接收模块62，设置为根据带宽部分起始频域点与中间预编码矩阵信息子带宽度，确定带宽部分内首位预编码矩阵信息子带宽度。
在一个示例性实施例方式中，所述配置信息还包括：带宽部分终止频域点；
第二接收模块62，设置为根据带宽部分终止频域点与中间预编码矩阵信息子带宽度，确定带宽部分内末位预编码矩阵信息子带宽度。
在一个示例性实施例方式中，所述配置信息还包括：参考信号的配置密度；
第二接收模块62，设置为根据所述参考信号的配置密度确定所述预编码矩阵信息子带宽度。
在一个示例性实施例方式中，第二接收模块62，设置为根据参考信号的第一类密度确定带宽部分内首位预编码矩阵信息子带宽度；其中，所述第一类密度是指由第一类预编码矩阵信息子带宽度确定的首个预编码矩阵信息子带内参考信号的密度；
其中，所述第一类预编码矩阵信息子带宽度为所述带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的差值，或，所述第一类预编码矩阵信息子带宽度为所述带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的模运算结果。
在一个示例性实施例方式中，第二接收模块62，设置为根据参考信号的第二类密度确定带宽部分内末位预编码矩阵信息子带宽度；其中，所述第二类密度由第二类预编码矩阵信息子带宽度确定的末位预编码矩阵信息子带内参考信号的密度；
其中，所述第二类预编码矩阵信息子带宽度为所述带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的差值，或，所述第二类预编码矩阵信息子带宽度为所述带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的模运算结果。
在一个示例性实施例方式中，在任一预编码矩阵信息子带内，所述信道状态信息参考信号的密度大于或等于所述参考信号的配置密度。
在一个示例性实施例方式中，所述预编码矩阵信息子带由信道状态信息子带映射得到。
在一个示例性实施例方式中，所述信道状态信息子带映射预编码矩阵信息子带的方式由信道状态信息子带在带宽部分中的位置确定。
本申请实施例还提供了一种第二通信节点，图7为本申请提供的一种第二 通信节点的结构示意图，如图7所示，本申请提供的第二通信节点，包括一个或多个处理器71和存储器72；该第二通信节点中的处理器71可以是一个或多个，图7中以一个处理器71为例；存储器72用于存储一个或多个程序；所述一个或多个程序被所述一个或多个处理器71执行，使得所述一个或多个处理器71实现如本发明实施例中所述的信息反馈方法。
第二通信节点还包括：通信装置73、输入装置74和输出装置75。
第二通信节点中的处理器71、存储器72、通信装置73、输入装置74和输出装置75可以通过总线或其他方式连接，图7中以通过总线连接为例。
输入装置74可用于接收输入的数字或字符信息，以及产生与第二通信节点的用户设置以及功能控制有关的按键信号输入。输出装置75可包括显示屏等显示设备。
通信装置73可以包括接收器和发送器。通信装置73设置为根据处理器71的控制进行信息收发通信。
存储器72作为一种计算机可读存储介质，可设置为存储软件程序、计算机可执行程序以及模块，如本申请实施例所述信息反馈方法对应的程序指令/模块(例如，信息反馈装置中的第一接收模块51，确定模块52和反馈模块53)。存储器72可包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据设备的使用所创建的数据等。此外，存储器72可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实例中，存储器72可包括相对于处理器71远程设置的存储器，这些远程存储器可以通过网络连接至第二通信节点。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
本申请实施例还提供了一种第一通信节点，图8为本申请提供的一种第一通信节点的结构示意图，如图8所示，本申请提供的第一通信节点，包括一个或多个处理器81和存储器82；该第一通信节点中的处理器81可以是一个或多个，图8中以一个处理器81为例；存储器82用于存储一个或多个程序；所述一个或多个程序被所述一个或多个处理器81执行，使得所述一个或多个处理器81实现如本发明实施例中所述的信息接收方法。
第一通信节点还包括：通信装置83、输入装置84和输出装置85。
第一通信节点中的处理器81、存储器82、通信装置83、输入装置84和输出装置85可以通过总线或其他方式连接，图8中以通过总线连接为例。
输入装置84可用于接收输入的数字或字符信息，以及产生与第二通信节点的用户设置以及功能控制有关的按键信号输入。输出装置85可包括显示屏等显示设备。
通信装置83可以包括接收器和发送器。通信装置83设置为根据处理器81的控制进行信息收发通信。
存储器82作为一种计算机可读存储介质，可设置为存储软件程序、计算机可执行程序以及模块，如本申请实施例所述位置信息确定方法对应的程序指令/模块(例如，信息接收装置中的发送模块61和第二接收模块62)。存储器82可包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据设备的使用所创建的数据等。此外，存储器82可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实例中，存储器82可包括相对于处理器81远程设置的存储器，这些远程存储器可以通过网络连接至第一通信节点。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
本申请实施例还提供一种存储介质，所述存储介质存储有计算机程序，所述计算机程序被处理器执行时实现本申请实施例中任一所述的信息反馈与信息接收方法。如应用于第二通信节点的信息反馈方法和应用于第一通信节点的信息接收方法。
其中，应用于第二通信节点的信息反馈方法包括：
接收第一通信节点发送的配置信息；
根据所述配置信息确定预编码矩阵信息；其中，所述预编码矩阵信息的目标频带通过预编码矩阵信息子带的指示信息确定；所述预编码矩阵信息子带根据所述配置信息确定；
将所述预编码矩阵信息反馈至所述第一通信节点。
应用于第一通信节点的信息接收方法包括：
向第二通信节点发送配置信息；
接收所述第二通信节点反馈的预编码矩阵信息；其中，所述预编码矩阵信息的目标频带通过预编码矩阵信息子带的指示信息确定；所述预编码矩阵信息子带根据所述配置信息确定。
以上所述，仅为本申请的示例性实施例而已，并非用于限定本申请的保护范围。
本领域内的技术人员应明白，术语终端涵盖任何适合类型的无线用户设备，例如移动电话、便携数据处理装置、便携网络浏览器或车载移动台。
一般来说，本申请的多种实施例可以在硬件或专用电路、软件、逻辑或其任何组合中实现。例如，一些方面可以被实现在硬件中，而其它方面可以被实现在可以被控制器、微处理器或其它计算装置执行的固件或软件中，尽管本申请不限于此。
本申请的实施例可以通过移动装置的数据处理器执行计算机程序指令来实现，例如在处理器实体中，或者通过硬件，或者通过软件和硬件的组合。计算机程序指令可以是汇编指令、指令集架构(Industry Subversive Alliance，ISA)指令、机器指令、机器相关指令、微代码、固件指令、状态设置数据、或者以一种或多种编程语言的任意组合编写的源代码或目标代码。
本申请附图中的任何逻辑流程的框图可以表示程序步骤，或者可以表示相互连接的逻辑电路、模块和功能，或者可以表示程序步骤与逻辑电路、模块和功能的组合。计算机程序可以存储在存储器上。存储器可以具有任何适合于本地技术环境的类型并且可以使用任何适合的数据存储技术实现，例如但不限于只读存储器(Read-Only Memory，ROM)、随机访问存储器(Random Access Memory，RAM)、光存储器装置和系统(数码多功能光碟(Digital Video Disk，DVD)或便携式紧凑磁盘(Compact Disc，CD)光盘)等。计算机可读介质可以包括非瞬时性存储介质。数据处理器可以是任何适合于本地技术环境的类型，例如但不限于通用计算机、专用计算机、微处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、可编程逻辑器件(Field Programmable Gate Array，FPGA)以及基于多核处理器架构的处理器。

Claims (27)

  1. 一种信息反馈方法，包括：
    接收第一通信节点发送的配置信息；
    根据所述配置信息确定预编码矩阵信息；其中，所述预编码矩阵信息的目标频带通过预编码矩阵信息子带的指示信息确定，所述预编码矩阵信息子带根据所述配置信息确定；
    将所述预编码矩阵信息反馈至所述第一通信节点。
  2. 根据权利要求1所述的方法，其中，所述配置信息包括：信道状态信息的目标频带；所述信道状态信息的目标频带通过信道状态信息子带的方式指示；所述预编码矩阵信息子带在所述信道状态信息子带内。
  3. 根据权利要求2所述的方法，其中，所述预编码矩阵信息子带根据所述配置信息确定，包括：
    根据信道状态信息子带宽度确定预编码矩阵信息子带宽度。
  4. 根据权利要求3所述的方法，其中，所述根据信道状态信息子带宽度确定预编码矩阵信息子带宽度，包括：
    根据带宽部分内首位信道状态信息子带宽度确定所述带宽部分内首位预编码矩阵信息子带宽度；其中，所述带宽部分包括至少一个子带。
  5. 根据权利要求4所述的方法，其中，所述根据带宽部分内首位信道状态信息子带宽度确定所述带宽部分内首位预编码矩阵信息子带宽度，包括：
    将所述带宽部分内首位预编码矩阵信息子带宽度配置为与所述带宽部分内首位信道状态信息子带宽度相等。
  6. 根据权利要求4所述的方法，其中，所述根据带宽部分内首位信道状态信息子带宽度确定所述带宽部分内首位预编码矩阵信息子带宽度，包括：
    根据所述带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的比较结果，确定所述带宽部分内首位预编码矩阵信息子带宽度；其中，中间预编码矩阵信息子带是所述带宽部分内的预编码矩阵信息子带；以及所述中间预编码矩阵信息子带为非首位预编码矩阵信息子带，且非末位预编码矩阵信息子带。
  7. 根据权利要求4所述的方法，其中，所述根据带宽部分内首位信道状态信息子带宽度确定所述带宽部分内首位预编码矩阵信息子带宽度，包括：
    根据所述带宽部分内首位信道状态信息子带宽度与中间信道状态信息子带宽度的比较结果，确定所述带宽部分内首位预编码矩阵信息子带宽度；其中， 中间信道状态信息子带为所述带宽部分内的信道状态信息子带，以及所述中间信道状态信息子带为非首位信道状态信息子带，且非末位信道状态信息子带。
  8. 根据权利要求3所述的方法，其中，所述根据信道状态信息子带宽度确定预编码矩阵信息子带宽度，包括：
    根据带宽部分内末位信道状态信息子带宽度确定所述带宽部分内末位预编码矩阵信息子带宽度。
  9. 根据权利要求8所述的方法，其中，所述根据带宽部分内末位信道状态信息子带宽度确定所述带宽部分内末位预编码矩阵信息子带宽度，包括：
    将所述带宽部分内末位预编码矩阵信息子带宽度配置为与所述带宽部分内末位信道状态信息子带宽度相等。
  10. 根据权利要求8所述的方法，其中，所述根据带宽部分内末位信道状态信息子带宽度确定所述带宽部分内末位预编码矩阵信息子带宽度，包括：
    根据所述带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的比较结果，确定所述带宽部分内末位预编码矩阵信息子带宽度。
  11. 根据权利要求8所述的方法，其中，所述根据带宽部分内末位信道状态信息子带宽度确定所述带宽部分内末位预编码矩阵信息子带宽度，包括：
    根据所述带宽部分内末位信道状态信息子带宽度与中间信道状态信息子带宽度的比较结果，确定所述带宽部分内末位预编码矩阵信息子带宽度。
  12. 根据权利要求2所述的方法，其中，所述配置信息还包括：带宽部分起始频域点；
    所述预编码矩阵信息子带根据所述配置信息确定，包括：
    根据所述带宽部分起始频域点与中间预编码矩阵信息子带宽度，确定带宽部分内首位预编码矩阵信息子带宽度。
  13. 根据权利要求2所述的方法，其中，所述配置信息还包括：带宽部分终止频域点；
    所述预编码矩阵信息子带根据所述配置信息确定，包括：
    根据所述带宽部分终止频域点与中间预编码矩阵信息子带宽度，确定带宽部分内末位预编码矩阵信息子带宽度。
  14. 根据权利要求2所述的方法，其中，所述配置信息还包括：参考信号的配置密度；
    所述预编码矩阵信息子带根据所述配置信息确定，包括：
    根据所述参考信号的配置密度确定预编码矩阵信息子带宽度。
  15. 根据权利要求2所述的方法，其中，所述预编码矩阵信息子带根据所述配置信息确定，包括：
    根据参考信号的第一类密度确定带宽部分内首位预编码矩阵信息子带宽度；其中，所述第一类密度是指由第一类预编码矩阵信息子带宽度确定的首个预编码矩阵信息子带内参考信号的密度；
    其中，所述第一类预编码矩阵信息子带宽度为所述带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的差值，或，所述第一类预编码矩阵信息子带宽度为所述带宽部分内首位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的模运算结果；中间预编码矩阵信息子带是所述带宽部分内的预编码矩阵信息子带；以及所述中间预编码矩阵信息子带为非首位预编码矩阵信息子带，且非末位预编码矩阵信息子带。
  16. 根据权利要求2所述的方法，其中，所述预编码矩阵信息子带根据所述配置信息确定，包括：
    根据参考信号的第二类密度确定带宽部分内末位预编码矩阵信息子带宽度；其中，所述第二类密度是由第二类预编码矩阵信息子带宽度确定的末位预编码矩阵信息子带内参考信号的密度；
    其中，所述第二类预编码矩阵信息子带宽度为所述带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的差值，或，所述第二类预编码矩阵信息子带宽度为所述带宽部分内末位信道状态信息子带宽度与中间预编码矩阵信息子带宽度的模运算结果；中间预编码矩阵信息子带是所述带宽部分内的预编码矩阵信息子带；以及所述中间预编码矩阵信息子带为非首位预编码矩阵信息子带，且非末位预编码矩阵信息子带。
  17. 根据权利要求15或16所述的方法，其中，在任一个预编码矩阵信息子带内，所述信道状态信息参考信号的密度大于或等于所述参考信号的配置密度。
  18. 根据权利要求2-16中任一项所述的方法，其中，所述预编码矩阵信息子带由信道状态信息子带映射得到。
  19. 根据权利要求18所述的方法，其中，所述信道状态信息子带映射所述预编码矩阵信息子带的方式由所述信道状态信息子带在带宽部分中的位置确定。
  20. 一种信息接收方法，包括：
    向第二通信节点发送配置信息；
    接收所述第二通信节点反馈的预编码矩阵信息；其中，所述预编码矩阵信息的目标频带通过预编码矩阵信息子带的指示信息确定，所述预编码矩阵信息子带根据所述配置信息确定。
  21. 根据权利要求20所述的方法，其中，在所述接收所述第二通信节点反馈的预编码矩阵信息之后，还包括：
    根据所述预编码矩阵信息确定待传输数据的传输方案。
  22. 一种信息反馈装置，包括：
    第一接收模块，设置为接收第一通信节点发送的配置信息；
    确定模块，设置为根据所述配置信息确定预编码矩阵信息；其中，所述预编码矩阵信息的目标频带通过预编码矩阵信息子带的指示信息确定，所述预编码矩阵信息子带根据所述配置信息确定；以及，
    反馈模块，设置为将所述预编码矩阵信息反馈至所述第一通信节点。
  23. 一种信息接收装置，包括：
    发送模块，设置为向第二通信节点发送配置信息；
    第二接收模块，设置为接收所述第二通信节点反馈的预编码矩阵信息；其中，所述预编码矩阵信息的目标频带通过预编码矩阵信息子带的指示信息确定，所述预编码矩阵信息子带根据所述配置信息确定。
  24. 根据权利要求22所述的装置，还包括：
    编码器，被配置为根据所述预编码矩阵信息确定待传输数据的传输方案。
  25. 一种第二通信节点，包括：
    一个或多个处理器；
    存储器，设置为存储一个或多个程序；
    所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现如权利要求1-19中任一项所述的信息反馈方法。
  26. 一种第一通信节点，包括：
    一个或多个处理器；
    存储器，设置为存储一个或多个程序；
    所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现如权利要求20-21中任一项所述的信息接收方法。
  27. 一种存储介质，所述存储介质存储有计算机程序，所述计算机程序被处 理器执行时实现权利要求1-19中任一项所述的信息反馈方法或权利要求20-21中任一项所述的信息接收方法。
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