WO2024082194A1 - 预编码方法及装置 - Google Patents

预编码方法及装置 Download PDF

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Publication number
WO2024082194A1
WO2024082194A1 PCT/CN2022/126285 CN2022126285W WO2024082194A1 WO 2024082194 A1 WO2024082194 A1 WO 2024082194A1 CN 2022126285 W CN2022126285 W CN 2022126285W WO 2024082194 A1 WO2024082194 A1 WO 2024082194A1
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Prior art keywords
phase shift
network device
shift matrix
angle information
information
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PCT/CN2022/126285
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English (en)
French (fr)
Inventor
池连刚
杨立
Original Assignee
北京小米移动软件有限公司
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Priority to PCT/CN2022/126285 priority Critical patent/WO2024082194A1/zh
Publication of WO2024082194A1 publication Critical patent/WO2024082194A1/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

Definitions

  • the present disclosure relates to the field of wireless communication technology, and in particular to a precoding method and device.
  • RIS Reconfigurable Intelligent Surface
  • RIS precoding technology has become a research hotspot in academia.
  • the precoding of RIS and base stations is jointly designed mainly through alternating optimization technology.
  • it is necessary to use the corresponding communication algorithm to continuously perform iterative calculations to determine the precoding matrix of RIS which increases the complexity of precoding, resulting in low precoding efficiency and is not suitable for practical applications.
  • the present disclosure provides a precoding method and device, which can simplify the precoding process of RIS, reduce the precoding complexity, and improve the precoding efficiency.
  • a first aspect of the present disclosure provides a precoding method, which is performed by a first network device and includes:
  • the phase shift matrix indication information is sent to the second network device.
  • the phase shift matrix indication information is first phase shift matrix indication information
  • the first phase shift matrix indication information includes incident angle information of the transmitted signal
  • PMIs for the second network device reported by multiple terminals and beam quality information corresponding to the PMIs
  • determining the phase shift matrix indication information of the second network device includes:
  • the incident angle information of the transmitted signal, as well as the PMI for the second network device reported by multiple terminals and the beam quality information corresponding to the PMI are determined as the first phase shift matrix indication information.
  • the phase shift matrix indication information is second phase shift matrix indication information
  • the second phase shift matrix indication information includes incident angle information of the transmitted signal, second reflection angle information or second transmission angle information of the second network device
  • determining the phase shift matrix indication information of the second network device includes:
  • the incident angle information of the transmitted signal, the second reflection angle information or the second transmission angle information of the second network device is determined as the second phase shift matrix indication information.
  • the phase shift matrix indication information is third phase shift matrix indication information
  • the third phase shift matrix indication information includes the second phase shift matrix
  • determining the phase shift matrix indication information of the second network device includes:
  • the phase shift matrix indication information is fourth phase shift matrix indication information
  • the fourth phase shift matrix indication information includes a phase shift matrix PMI
  • determining the phase shift matrix indication information of the second network device includes:
  • the phase shift matrix PMI is determined as the fourth phase shift matrix indication information.
  • the method further includes:
  • determining the second reflection angle information or the second transmission angle information of the second network device according to the PMI reported by multiple terminals for the second network device and the beam quality information corresponding to the PMI includes:
  • the second reflection angle information or the second transmission angle information of the second network device is determined.
  • determining the second reflection angle information or the second transmission angle information of the second network device according to the first reflection angle information or the first transmission angle information of the multiple terminals, and the PMI for the second network device reported by the multiple terminals and the beam quality information corresponding to the PMI includes:
  • weighted processing is performed on the angle values in the first reflection angle information or the first transmission angle information of the multiple terminals to obtain the second reflection angle information or the second transmission angle information of the second network device.
  • determining the second reflection angle information or the second transmission angle information of the second network device according to the first reflection angle information or the first transmission angle information of the multiple terminals, and the PMI for the second network device reported by the multiple terminals and the beam quality information corresponding to the PMI includes:
  • the first reflection angle information or the first transmission angle information that meets the preset conditions is determined from the first reflection angle information or the first transmission angle information of the multiple terminals as the second reflection angle information or the second transmission angle information of the second network device.
  • the sending the phase shift matrix indication information to the second network device includes:
  • Any one of the first phase shift matrix indication information, the second phase shift matrix indication information, the third phase shift matrix indication information, and the fourth phase shift matrix indication information is sent to the second network device.
  • a second aspect of the present disclosure provides a precoding method, which is performed by a second network device.
  • the method includes:
  • Signal processing is performed on a transmission signal of the first network device according to the phase shift matrix indication information.
  • the phase shift matrix indication information is first phase shift matrix indication information
  • the first phase shift matrix indication information includes incident angle information of the transmitted signal, and PMIs reported by multiple terminals for the second network device and beam quality information corresponding to the PMIs
  • the receiving of the phase shift matrix indication information sent by the first network device includes:
  • the performing signal processing according to the phase shift matrix indication information includes:
  • the transmission signal of the first network device is subjected to signal processing based on the phase shift matrix configuration, wherein the signal processing includes signal reflection processing or signal transmission processing.
  • determining the second reflection angle information or the second transmission angle information of the second network device according to the PMI reported by the multiple terminals and the beam quality information corresponding to the PMI includes:
  • the second reflection angle information or the second transmission angle information of the second network device is determined.
  • determining the second reflection angle information or the second transmission angle information of the second network device according to the first reflection angle information or the first transmission angle information of the multiple terminals, and the PMI and the beam quality information for the second network device reported by the multiple terminals includes:
  • weighted processing is performed on the angle values in the first reflection angle information or the first transmission angle information of the multiple terminals to obtain the second reflection angle information or the second transmission angle information of the second network device.
  • determining the second reflection angle information or the second transmission angle information of the second network device according to the first reflection angle information or the first transmission angle information of the multiple terminals, and the PMI for the second network device reported by the multiple terminals and the beam quality information corresponding to the PMI includes:
  • the first reflection angle information or the first transmission angle information that meets the preset conditions is determined from the first reflection angle information or the first transmission angle information of the multiple terminals as the second reflection angle information or the second transmission angle information of the second network device.
  • the phase shift matrix indication information is second phase shift matrix indication information
  • the second phase shift matrix indication information includes incident angle information of the transmitted signal, second reflection angle information or second transmission angle information of the second network device
  • the receiving of the phase shift matrix indication information sent by the first network device includes:
  • the performing signal processing according to the phase shift matrix indication information includes:
  • the transmission signal of the first network device is subjected to signal processing based on the phase shift matrix configuration, wherein the signal processing includes signal reflection processing or signal transmission processing.
  • the phase shift matrix indication information is third phase shift matrix indication information
  • the third phase shift matrix indication information includes the second phase shift matrix
  • the receiving the phase shift matrix indication information sent by the first network device includes:
  • a second phase shift matrix sent by the first network device is received.
  • the performing signal processing according to the phase shift matrix indication information includes:
  • the transmission signal of the first network device is subjected to signal processing based on the phase shift matrix configuration, wherein the signal processing includes signal reflection processing or signal transmission processing.
  • the phase shift matrix indication information is fourth phase shift matrix indication information
  • the fourth phase shift matrix indication information includes a phase shift matrix PMI
  • the receiving of the phase shift matrix indication information sent by the first network device includes:
  • a phase shift matrix PMI sent by the first network device is received.
  • the performing signal processing according to the phase shift matrix indication information includes:
  • the transmission signal of the first network device is subjected to signal processing based on the phase shift matrix configuration, wherein the signal processing includes signal reflection processing or signal transmission processing.
  • a third aspect of the present disclosure provides a precoding method, which is performed by a terminal and includes:
  • a fourth aspect of the present disclosure provides a first network device, the first network device comprising:
  • a processing module used to determine phase shift matrix indication information of a second network device
  • a sending module is used to send the phase shift matrix indication information to the second network device.
  • a fifth aspect of the present disclosure provides a second network device, the second network device comprising:
  • a receiving module used to receive phase shift matrix indication information sent by the first network device
  • a processing module is used to perform signal processing on the transmission signal of the first network device according to the phase shift matrix indication information.
  • a sixth aspect of the present disclosure provides a terminal, the terminal comprising:
  • the sending module is used to report the PMI of the second network device and the beam quality information corresponding to the PMI to the first network device.
  • the seventh aspect embodiment of the present disclosure provides a communication device, which includes: a transceiver; a memory; a processor, which is connected to the transceiver and the memory respectively, and is configured to control the wireless signal reception and transmission of the transceiver by executing computer-executable instructions on the memory, and can implement the method of the first aspect embodiment, the second aspect embodiment, or the third aspect embodiment of the present disclosure.
  • the eighth aspect embodiment of the present disclosure provides a computer storage medium, wherein the computer storage medium stores computer executable instructions; after the computer executable instructions are executed by the processor, the method of the first aspect embodiment, the second aspect embodiment, or the third aspect embodiment of the present disclosure can be implemented.
  • a ninth aspect embodiment of the present disclosure provides a communication system, comprising a first network device, a second network device and a terminal, wherein the first network device is used to execute a method as in the first aspect embodiment of the present disclosure; the second network device is used to execute a method as in the second aspect embodiment of the present disclosure; and the terminal is used to execute a method as in the third aspect embodiment of the present disclosure.
  • the embodiment of the present disclosure provides a precoding method and apparatus, wherein a first network device (base station) can determine the phase shift matrix indication information of the second network device and send the phase shift matrix indication information to the second network device (RIS), so that the second network device can perform signal processing on the transmission signal of the first network device according to the phase shift matrix indication information.
  • the present disclosure can determine the phase shift matrix indication information containing the precoding information in the first network device through simple data processing, so that the second network device can directly configure the phase shift matrix according to the phase shift matrix indication information and perform signal processing on the transmission signal of the first network device. Therefore, the present disclosure can avoid using complex algorithms to jointly design the precoding at the RIS and the base station, thereby simplifying the precoding process of the RIS, reducing the complexity of precoding, and improving the precoding efficiency.
  • FIG1 is a schematic diagram of a flow chart of a precoding method according to an embodiment of the present disclosure
  • FIG2 is a schematic diagram of a flow chart of a precoding method according to an embodiment of the present disclosure
  • FIG3 is a schematic diagram of a flow chart of a precoding method according to an embodiment of the present disclosure
  • FIG4 is a schematic diagram of a flow chart of a precoding method according to an embodiment of the present disclosure.
  • FIG5 is a schematic diagram of a flow chart of a precoding method according to an embodiment of the present disclosure.
  • FIG6 is a schematic diagram of a flow chart of a precoding method according to an embodiment of the present disclosure.
  • FIG7 is a schematic diagram of a flow chart of a precoding method according to an embodiment of the present disclosure.
  • FIG8 is a schematic diagram of a flow chart of a precoding method according to an embodiment of the present disclosure.
  • FIG9 is a schematic diagram of a flow chart of a precoding method according to an embodiment of the present disclosure.
  • FIG10 is a schematic diagram of a flow chart of a precoding method according to an embodiment of the present disclosure.
  • FIG11 is a schematic diagram of a flow chart of a precoding method according to an embodiment of the present disclosure.
  • FIG12 is a block diagram of a precoding device according to an embodiment of the present disclosure.
  • FIG13 is a block diagram of a precoding device according to an embodiment of the present disclosure.
  • FIG14 is a block diagram of a precoding device according to an embodiment of the present disclosure.
  • FIG15 is a schematic diagram of the structure of a communication device according to an embodiment of the present disclosure.
  • FIG. 16 is a schematic diagram of the structure of a chip provided in an embodiment of the present disclosure.
  • the base station In a communication system assisted by a reconfigurable intelligent surface (RIS), the base station reflects the signal to the terminal through the RIS. Each unit of the RIS can perform different phase shifts on the received signal, thereby achieving the effect of adjustable reflected beam direction.
  • the offset phase angle of the RIS unit can only be a few discrete values.
  • precoding In order to reflect the incident signal of the RIS to the receiving end, it is necessary to configure the offset phase of the RIS unit, that is, precoding.
  • RIS precoding technology has become a research hotspot in academia.
  • the precoding at the RIS and the base station is mainly jointly designed through alternating optimization technology.
  • it is necessary to use the corresponding communication algorithm to continuously perform iterative calculations to determine the precoding matrix of the RIS, which increases the complexity of the precoding, resulting in low precoding efficiency and is not suitable for practical applications.
  • the present disclosure proposes a precoding method and device, which can simplify the precoding process of RIS, reduce the precoding complexity, and improve the precoding efficiency.
  • Fig. 1 shows a schematic flow chart of a precoding method according to an embodiment of the present disclosure. As shown in Fig. 1, the method includes being executed by a first network device, wherein the first network device may be a base station, and the embodiment may include the following steps.
  • Step 101 Determine phase shift matrix indication information of a second network device.
  • the second network device may be a RIS, and the phase shift matrix indication information is used to determine the phase shift matrix configuration of the second network device, so that the second network device performs signal reflection processing or signal transmission processing on the transmission signal of the first network device based on the phase shift matrix configuration. Accordingly, the specific implementation process of determining the phase shift matrix indication information of the second network device may be:
  • One or more terminals report a precoding matrix indicator (PMI) for the second network device to the first network device.
  • PMI precoding matrix indicator
  • one or more terminals may also report beam quality information corresponding to the PMI or other information that can be used to determine the beam weight (such as terminal priority information, etc.) to the first network device.
  • the beam quality information corresponding to the PMI is used to reflect the quality of beam transmission.
  • it can be measured using Reference Signal Receiving Power (RSRP), Signal to Interference plus Noise Ratio (SINR), Reference Signal Received Quality (RSRQ), Received Signal Strength Indicator (RSSI), etc.
  • RSRP Reference Signal Receiving Power
  • SINR Signal to Interference plus Noise Ratio
  • RSRQ Reference Signal Received Quality
  • RSSI Received Signal Strength Indicator
  • one of the above information can be used as the beam quality information corresponding to the PMI; as a possible implementation method, multiple types of the above information can also be fused through a preset algorithm (such as weighted fusion, etc.) to obtain the beam quality information corresponding to the PMI.
  • the first network device determines the phase shift matrix indication information of the second network device according to the information reported by the terminal.
  • the phase shift matrix indication information of the second network device may include any one of the first phase shift matrix indication information, the second phase shift matrix indication information, the third phase shift matrix indication information and the fourth phase shift matrix indication information.
  • the first phase shift matrix indication information may include: the incident angle information of the transmitted signal, and the precoding matrix indicator (PMI) for the second network device reported by multiple terminals and the beam quality information corresponding to the PMI;
  • the second phase shift matrix indication information may include: the incident angle information of the transmitted signal, the second reflection angle information or the second transmission angle information of the second network device;
  • the third phase shift matrix indication information may include: the phase shift matrix of the second network device;
  • the fourth phase shift matrix indication information may include the phase shift matrix PMI.
  • the specific implementation process of the first network device determining the first phase shift matrix indication information according to the information reported by the terminal can refer to the relevant description in steps 201 to 203 of the embodiment; the specific implementation process of the first network device determining the second phase shift matrix indication information according to the information reported by the terminal can refer to the relevant description in steps 301 to 303 of the embodiment; the specific implementation process of the first network device determining the third phase shift matrix indication information according to the information reported by the terminal can refer to the relevant description in steps 401 to 405 of the embodiment; the specific implementation process of the first network device determining the fourth phase shift matrix indication information according to the information reported by the terminal can refer to the relevant description in steps 501 to 505 of the embodiment.
  • Step 102 Send phase shift matrix indication information to the second network device.
  • the steps of the embodiments may include: sending any one of the first phase shift matrix indication information, the second phase shift matrix indication information, the third phase shift matrix indication information, and the fourth phase shift matrix indication information to the second network device, so that the second network device determines the phase shift matrix configuration according to any one of the first phase shift matrix indication information, the second phase shift matrix indication information, the third phase shift matrix indication information, and the fourth phase shift matrix indication information, and performs signal reflection processing or signal transmission processing on the transmission signal of the first network device based on the phase shift matrix configuration.
  • the first network device can determine the phase shift matrix indication information of the second network device and send the phase shift matrix indication information to the second network device (RIS), so that the second network device can perform signal processing on the transmission signal of the first network device according to the phase shift matrix indication information.
  • the present disclosure can determine the phase shift matrix indication information containing precoding information in the first network device through simple data processing, so that the second network device can directly configure the phase shift matrix according to the phase shift matrix indication information and perform signal processing on the transmission signal of the first network device. Therefore, the present disclosure can avoid using complex algorithms for iterative calculations, thereby simplifying the precoding process of RIS, reducing the complexity of precoding, and improving precoding efficiency.
  • FIG2 shows a precoding method according to an embodiment of the present disclosure, which is performed by a first network device, based on the embodiment shown in FIG1 , as shown in FIG2 , and may include the following steps.
  • Step 201 Receive PMIs for a second network device and beam quality information corresponding to the PMIs reported by multiple terminals.
  • Step 202 Determine the incident angle information of the transmitted signal.
  • the incident angle information is the incident angle of the transmission signal transmitted by the first network device (base station) at the second network device (RIS), which can be determined by the base station through channel estimation, protocol agreement, or by sensing information fed back by RIS and other optional methods.
  • Step 203 Determine the incident angle information of the transmitted signal, and the PMI for the second network device reported by multiple terminals and the beam quality information corresponding to the PMI as the first phase shift matrix indication information.
  • Step 204 Send the first phase shift matrix indication information to the second network device.
  • the first network device (base station) can directly determine the incident angle information of the transmitted signal, and the PMI reported by multiple terminals for the second network device and the beam quality information corresponding to the PMI as the first phase shift matrix indication information, and send the first phase shift matrix indication information to the second network device, so that the second network device can perform signal processing on the transmitted signal of the first network device according to the first phase shift matrix indication information. Since the first phase shift matrix indication information contains precoding information or beam information, the second network device can directly configure the phase shift matrix according to the first phase shift matrix indication information and perform signal processing on the transmitted signal of the first network device. Therefore, the present disclosure can avoid using complex algorithms for iterative calculations, thereby simplifying the precoding process of RIS, reducing precoding complexity, and improving precoding efficiency.
  • FIG3 shows a precoding method according to an embodiment of the present disclosure, which is performed by a first network device, based on the embodiment shown in FIG1 , as shown in FIG3 , and may include the following steps.
  • Step 301 Receive PMIs for a second network device and beam quality information corresponding to the PMIs reported by multiple terminals.
  • Step 302 determine the incident angle information of the transmitted signal, and determine the second reflection angle information or the second transmission angle information of the second network device according to the PMI reported by multiple terminals for the second network device and the beam quality information corresponding to the PMI.
  • the embodiment steps may specifically include: determining the first reflection angle information or the first transmission angle information of the multiple terminals according to the PMI for the second network device reported by the multiple terminals; determining the second reflection angle information or the second transmission angle information of the second network device according to the first reflection angle information or the first transmission angle information of the multiple terminals, and the PMI for the second network device reported by the multiple terminals and the beam quality information corresponding to the PMI, wherein the reflection angle information and the transmission angle information can be jointly represented from the perspective of two dimensions: the first dimension is the horizontal dimension, and the second dimension is the vertical dimension.
  • the first reflection angle information of the multiple terminals includes the first reflection angle information of the horizontal dimension and the first reflection angle information of the vertical dimension
  • the first transmission angle information of the multiple terminals includes the first transmission angle information of the horizontal dimension and the first transmission angle information of the vertical dimension
  • the second reflection angle information of the second network device includes the second reflection angle information of the horizontal dimension and the second reflection angle information of the vertical dimension
  • the second transmission angle information of the second network device includes the second transmission angle information of the horizontal dimension and the second transmission angle information of the vertical dimension.
  • At least one of the PMI for the second network device and the beam quality information corresponding to the PMI reported by multiple terminals can be used together with the first reflection angle information or the first transmission angle information of the multiple terminals to determine the second reflection angle information or the second transmission angle information of the second network device.
  • the second reflection angle information or the second transmission angle information of the second network device can be determined by using the beam quality information corresponding to the PMI reported by multiple terminals and the first reflection angle information or the first transmission angle information of the multiple terminals; the second reflection angle information or the second transmission angle information of the second network device can also be determined by using the PMI for the second network device reported by multiple terminals and the first reflection angle information or the first transmission angle information of the multiple terminals; the second reflection angle information or the second transmission angle information of the second network device can also be determined by using the PMI for the second network device reported by multiple terminals and the beam quality information corresponding to the PMI, together with the first reflection angle information or the first transmission angle information of the multiple terminals.
  • the second reflection angle information or the second transmission angle information of the second network device may be weighted to determine.
  • the weight value of each terminal may be calculated according to at least one of the PMI of the second network device and the beam quality information corresponding to the PMI, and the first reflection angle information or the first transmission angle information of the multiple terminals may be weighted according to the weight value to determine the second reflection angle information or the second transmission angle information of the second network device.
  • the angles corresponding to the first reflection angle information in the horizontal dimension or the first transmission angle information in the horizontal dimension are ⁇ 1 , ⁇ 2 , ⁇ 3 , respectively, and the corresponding beam qualities are b 1 , b 2 , b 3 , respectively.
  • the vertical dimension is determined in the same manner and will not be described in detail here.
  • the steps of the embodiment may include: determining the beam weight of the terminal based on the PMI reported by multiple terminals for the second network device and the beam quality information corresponding to the PMI; and performing weighted processing on the angle values in the first reflection angle information or the first transmission angle information of the multiple terminals according to the beam weight of the terminal to obtain the second reflection angle information or the second transmission angle information of the second network device.
  • the direction with the best beam quality in the first reflection angle information or the first transmission angle information corresponding to the multiple terminals can be used as the second reflection angle information or the second transmission angle information of the second network device, that is, in the corresponding weighted method, the weight of the first reflection angle information or the first transmission angle information with the best beam quality is set to 1, and the weights of other directions are set to 0.
  • the beam quality can be determined according to at least one of the PMI of the second network device and the beam quality information corresponding to the PMI.
  • the horizontal dimension first reflection angle information with the best beam quality in the multiple horizontal dimension first reflection angle information corresponding to the multiple terminals can be determined as the second reflection angle information of the horizontal dimension of the second network device;
  • the vertical dimension first reflection angle information with the best beam quality in the multiple vertical dimension first reflection angle information corresponding to the multiple terminals can be determined as the second reflection angle information of the vertical dimension of the second network device.
  • the embodiment steps can also include: based on the PMI reported by the multiple terminals for the second network device and the beam quality information corresponding to the PMI, determine the first reflection angle information or the first transmission angle information that meets the preset conditions in the first reflection angle information or the first transmission angle information of the multiple terminals as the second reflection angle information or the second transmission angle information of the second network device.
  • the preset condition may be optimal beam quality, or other screening conditions may be set in combination with actual application scenarios, which are not exhaustively listed here.
  • Step 303 Determine the incident angle information of the transmitted signal, the second reflection angle information or the second transmission angle information of the second network device as the second phase shift matrix indication information.
  • Step 304 Send the second phase shift matrix indication information to the second network device.
  • the first network device can determine the incident angle information of the transmitted signal after receiving the PMI and beam quality information corresponding to the PMI for the second network device reported by multiple terminals, and determine the second reflection angle information or the second transmission angle information of the second network device according to the PMI and beam quality information corresponding to the PMI reported by multiple terminals, and then determine the incident angle information of the transmitted signal, the second reflection angle information or the second transmission angle information of the second network device as the second phase shift matrix indication information, and send the second phase shift matrix indication information to the second network device, so that the second network device can perform signal processing on the transmitted signal of the first network device according to the second phase shift matrix indication information.
  • the second network device can directly configure the phase shift matrix according to the second phase shift matrix indication information, and perform signal processing on the transmitted signal of the first network device. Therefore, the present disclosure can avoid using complex algorithms for iterative calculations, thereby simplifying the precoding process of RIS, reducing precoding complexity, and improving precoding efficiency.
  • FIG4 shows a precoding method according to an embodiment of the present disclosure, which is performed by a first network device, based on the embodiment shown in FIG1 , as shown in FIG4 , and may include the following steps.
  • Step 401 Receive PMIs for a second network device and beam quality information corresponding to the PMIs reported by multiple terminals.
  • Step 402 Determine second reflection angle information or second transmission angle information of the second network device according to the PMIs reported by multiple terminals and the beam quality information corresponding to the PMIs.
  • step 302 of the embodiment please refer to the relevant description in step 302 of the embodiment for details, which will not be repeated here.
  • Step 403 Determine a first phase shift matrix according to the incident angle information of the transmitted signal, the second reflection angle information or the second transmission angle information of the second network device.
  • a first phase shift matrix for supporting signal reflection processing can be calculated based on the incident angle information of the transmitted signal and the second reflection angle information of the second network device; as a possible implementation method, a first phase shift matrix for supporting signal transmission processing can be calculated based on the incident angle information of the transmitted signal and the second transmission angle information of the second network device.
  • Step 404 Perform phase shift quantization processing on the first phase shift matrix to obtain a second phase shift matrix of the second network device.
  • the first phase shift matrix is a continuous phase shift matrix calculated based on the incident angle information, the second reflection angle information or the second transmission angle information of the continuous phase, and the phase of the RIS can only be at a few discrete phases
  • the phase shift of each unit in the first phase shift matrix can be quantized to the discrete phase shift closest to the calculated phase shift.
  • the second phase shift matrix of the second network device is further obtained.
  • Step 405 Determine that the second phase shift matrix is indication information of the third phase shift matrix.
  • Step 406 Send the third phase shift matrix indication information to the second network device.
  • the first network device can determine the incident angle information of the transmitted signal after receiving the PMI and beam quality information corresponding to the PMI for the second network device reported by multiple terminals, and determine the second reflection angle information or the second transmission angle information of the second network device according to the PMI and beam quality information corresponding to the PMI for the second network device reported by multiple terminals; then determine the first phase shift matrix according to the incident angle information of the transmitted signal, the second reflection angle information or the second transmission angle information of the second network device, and perform phase shift quantization processing on the first phase shift matrix to obtain the second phase shift matrix of the second network device; then send the second phase shift matrix as the third phase shift matrix indication information to the second network device, so that the second network device can perform signal processing on the transmitted signal of the first network device according to the third phase shift matrix indication information.
  • the second network device can directly configure the phase shift matrix according to the third phase shift matrix indication information and perform signal processing on the transmission signal of the first network device. Therefore, the present disclosure can avoid using complex algorithms for iterative calculations, thereby simplifying the precoding process of RIS, reducing precoding complexity, and improving precoding efficiency.
  • FIG5 shows a precoding method according to an embodiment of the present disclosure, which is performed by a first network device, based on the embodiment shown in FIG1 , as shown in FIG5 , and may include the following steps.
  • Step 501 Receive PMIs for a second network device and beam quality information corresponding to the PMIs reported by multiple terminals.
  • Step 502 Determine second reflection angle information or second transmission angle information of the second network device according to the PMIs reported by multiple terminals and the beam quality information corresponding to the PMIs.
  • step 302 of the embodiment please refer to the relevant description in step 302 of the embodiment for details, which will not be repeated here.
  • Step 503 Determine a first phase shift matrix according to the incident angle information of the transmitted signal, the second reflection angle information or the second transmission angle information of the second network device.
  • Step 504 Determine a phase shift matrix PMI corresponding to the first phase shift matrix.
  • the phase shift matrix PMI corresponding to the first phase shift matrix can be extracted, so as to directly determine the phase shift matrix PMI as the fourth phase shift matrix indication information.
  • Step 505 Determine that the phase shift matrix PMI is fourth phase shift matrix indication information.
  • Step 506 Send the fourth phase shift matrix indication information to the second network device.
  • the first network device can determine the incident angle information of the transmitted signal after receiving the PMI for the second network device and the beam quality information corresponding to the PMI reported by multiple terminals, and determine the second reflection angle information or the second transmission angle information of the second network device according to the PMI for the second network device and the beam quality information corresponding to the PMI reported by multiple terminals; then determine the first phase shift matrix according to the incident angle information of the transmitted signal, the second reflection angle information or the second transmission angle information of the second network device, and determine the phase shift matrix PMI corresponding to the first phase shift matrix; then send the phase shift matrix PMI as the fourth phase shift matrix indication information to the second network device, so that the second network device can directly configure the phase shift matrix according to the fourth phase shift matrix indication information, and perform signal processing on the transmitted signal of the first network device, thereby avoiding the use of complex algorithms for iterative calculations, thereby simplifying the precoding process of RIS, reducing the precoding complexity, and improving
  • Fig. 6 is a flow chart of a precoding method according to an embodiment of the present disclosure. The method is executed by a second network device, wherein the second network device may be a RIS, and may include the following steps.
  • Step 601 Receive phase shift matrix indication information sent by a first network device.
  • the phase shift matrix indication information may be determined by the terminal according to the terminal reporting information after receiving the information reported by one or more terminals, and the terminal reporting information may include the PMI for the second network device and the beam quality information corresponding to the PMI.
  • the phase shift matrix indication information is used to determine the phase shift matrix configuration of the second network device, so that the second network device performs signal reflection processing or signal transmission processing on the transmission signal of the first network device based on the phase shift matrix configuration.
  • the phase shift matrix indication information of the second network device may include any one of the first phase shift matrix indication information, the second phase shift matrix indication information, the third phase shift matrix indication information and the fourth phase shift matrix indication information.
  • the first phase shift matrix indication information may include: the incident angle information of the transmission signal, and the precoding matrix indicator (Precoding Matrix Indicator, PMI) for the second network device reported by multiple terminals and the beam quality information corresponding to the PMI;
  • the second phase shift matrix indication information may include: the incident angle information of the transmission signal, the second reflection angle information or the second transmission angle information of the second network device;
  • the third phase shift matrix indication information may include: the phase shift matrix of the second network device;
  • the fourth phase shift matrix indication information may include the phase shift matrix PMI.
  • Step 602 Perform signal processing on a transmission signal of the first network device according to the phase shift matrix indication information.
  • the second network device may determine the phase shift matrix configuration according to any one of the first phase shift matrix indication information, the second phase shift matrix indication information, the third phase shift matrix indication information, and the fourth phase shift matrix indication information, and perform signal reflection processing or signal transmission processing on the transmission signal of the first network device based on the phase shift matrix configuration.
  • the specific implementation process of the second network device performing signal processing on the transmission signal of the first network device according to the first phase shift matrix indication information can refer to the relevant description in steps 701 to 706 of the embodiment; the specific implementation process of the second network device performing signal processing on the transmission signal of the first network device according to the second phase shift matrix indication information can refer to the relevant description in steps 801 to 805 of the embodiment; the specific implementation process of the second network device performing signal processing on the transmission signal of the first network device according to the third phase shift matrix indication information can refer to the relevant description in steps 901 to 903 of the embodiment; the specific implementation process of the second network device performing signal processing on the transmission signal of the first network device according to the fourth phase shift matrix indication information can refer to the relevant description in steps 1001 to 1005 of the embodiment.
  • the second network device can perform signal processing on the transmission signal of the first network device according to the phase shift matrix indication information after receiving the phase shift matrix indication information sent by the first network device (base station).
  • the present disclosure can enable the second network device to directly configure the phase shift matrix according to the phase shift matrix indication information and perform signal processing on the transmission signal of the first network device through simple data processing, thereby avoiding the use of complex algorithms for iterative calculations, thereby simplifying the precoding process of the RIS, reducing the complexity of precoding, and improving the precoding efficiency.
  • FIG. 7 shows a precoding method according to an embodiment of the present disclosure, which is performed by a second network device, based on the embodiment shown in FIG. 6 , as shown in FIG. 7 , and may include the following steps.
  • Step 701 Receive first phase shift matrix indication information sent by a first network device, where the first phase shift matrix indication information includes incident angle information of a transmitted signal, and PMIs reported by multiple terminals for a second network device and beam quality information corresponding to the PMIs.
  • the first network device may determine the first phase shift matrix indication information through steps 201 to 204 of the embodiment, and send the first phase shift matrix indication information to the second network device.
  • the second network device may receive the incident angle information of the transmitted signal, and the PMI reported by multiple terminals for the second network device and the beam quality information corresponding to the PMI.
  • Step 702 Determine second reflection angle information or second transmission angle information of the second network device according to the PMIs reported by multiple terminals for the second network device and the beam quality information corresponding to the PMIs.
  • the embodiment steps may specifically include: determining the first reflection angle information or the first transmission angle information of the multiple terminals according to the PMI for the second network device reported by the multiple terminals; determining the second reflection angle information or the second transmission angle information of the second network device according to the first reflection angle information or the first transmission angle information of the multiple terminals, and the PMI for the second network device reported by the multiple terminals and the beam quality information corresponding to the PMI, wherein the reflection angle information and the transmission angle information can be jointly represented from the perspective of two dimensions: the first dimension is the horizontal dimension, and the second dimension is the vertical dimension.
  • the first reflection angle information of the multiple terminals includes the first reflection angle information of the horizontal dimension and the first reflection angle information of the vertical dimension
  • the first transmission angle information of the multiple terminals includes the first transmission angle information of the horizontal dimension and the first transmission angle information of the vertical dimension
  • the second reflection angle information of the second network device includes the second reflection angle information of the horizontal dimension and the second reflection angle information of the vertical dimension
  • the second transmission angle information of the second network device includes the second transmission angle information of the horizontal dimension and the second transmission angle information of the vertical dimension.
  • At least one of the PMI for the second network device and the beam quality information corresponding to the PMI reported by multiple terminals can be used together with the first reflection angle information or the first transmission angle information of the multiple terminals to determine the second reflection angle information or the second transmission angle information of the second network device.
  • the second reflection angle information or the second transmission angle information of the second network device can be determined by using the beam quality information corresponding to the PMI reported by multiple terminals and the first reflection angle information or the first transmission angle information of the multiple terminals; the second reflection angle information or the second transmission angle information of the second network device can also be determined by using the PMI for the second network device reported by multiple terminals and the first reflection angle information or the first transmission angle information of the multiple terminals; the second reflection angle information or the second transmission angle information of the second network device can also be determined by using the PMI for the second network device reported by multiple terminals and the beam quality information corresponding to the PMI, together with the first reflection angle information or the first transmission angle information of the multiple terminals.
  • the second reflection angle information or the second transmission angle information of the second network device may be weighted to determine.
  • the weight value of each terminal may be calculated according to at least one of the PMI of the second network device and the beam quality information corresponding to the PMI, and the first reflection angle information or the first transmission angle information of the multiple terminals may be weighted according to the weight value to determine the second reflection angle information or the second transmission angle information of the second network device.
  • the angles corresponding to the first reflection angle information in the horizontal dimension or the first transmission angle information in the horizontal dimension are ⁇ 1 , ⁇ 2 , ⁇ 3 , respectively, and the corresponding beam qualities are b 1 , b 2 , b 3 , respectively.
  • the vertical dimension is determined in the same manner and will not be described in detail here.
  • the steps of the embodiment may include: determining the beam weight of the terminal based on the PMI reported by multiple terminals for the second network device and the beam quality information corresponding to the PMI; and performing weighted processing on the angle values in the first reflection angle information or the first transmission angle information of the multiple terminals according to the beam weight of the terminal to obtain the second reflection angle information or the second transmission angle information of the second network device.
  • the direction with the best beam quality in the first reflection angle information or the first transmission angle information corresponding to the multiple terminals can be used as the second reflection angle information or the second transmission angle information of the second network device, that is, in the corresponding weighted method, the weight of the first reflection angle information or the first transmission angle information with the best beam quality is set to 1, and the weights of other directions are set to 0.
  • the beam quality can be determined according to at least one of the PMI of the second network device and the beam quality information corresponding to the PMI.
  • the horizontal dimension first reflection angle information with the best beam quality in the multiple horizontal dimension first reflection angle information corresponding to the multiple terminals can be determined as the second reflection angle information of the horizontal dimension of the second network device;
  • the vertical dimension first reflection angle information with the best beam quality in the multiple vertical dimension first reflection angle information corresponding to the multiple terminals can be determined as the second reflection angle information of the vertical dimension of the second network device.
  • the embodiment steps can also include: based on the PMI reported by the multiple terminals for the second network device and the beam quality information corresponding to the PMI, determine the first reflection angle information or the first transmission angle information that meets the preset conditions in the first reflection angle information or the first transmission angle information of the multiple terminals as the second reflection angle information or the second transmission angle information of the second network device.
  • the preset condition may be optimal beam quality, or other screening conditions may be set in combination with actual application scenarios, which are not exhaustively listed here.
  • Step 703 Determine a first phase shift matrix according to the incident angle information of the transmitted signal, the second reflection angle information or the second transmission angle information of the second network device.
  • a first phase shift matrix for supporting signal reflection processing can be calculated based on the incident angle information of the transmitted signal and the second reflection angle information of the second network device; as a possible implementation method, a first phase shift matrix for supporting signal transmission processing can be calculated based on the incident angle information of the transmitted signal and the second transmission angle information of the second network device.
  • Step 704 Perform phase shift quantization processing on the first phase shift matrix to obtain a second phase shift matrix of the second network device.
  • the first phase shift matrix is a continuous phase shift matrix calculated based on the incident angle information, the second reflection angle information or the second transmission angle information of the continuous phase, and the phase of the RIS can only be at a few discrete phases
  • the phase shift of each unit in the first phase shift matrix can be quantized to the discrete phase shift closest to the calculated phase shift.
  • the second phase shift matrix of the second network device is further obtained.
  • Step 705 Determine a phase shift matrix configuration according to the second phase shift matrix.
  • Step 706 Perform signal processing on the transmission signal of the first network device based on the phase shift matrix configuration, wherein the signal processing includes signal reflection processing or signal transmission processing.
  • the second phase shift matrix is a phase shift matrix that supports signal reflection processing
  • signal reflection processing can be performed on the transmission signal of the first network device based on the phase shift matrix configuration determined by the second phase shift matrix
  • the second phase shift matrix is a phase shift matrix that supports signal transmission processing
  • signal transmission processing can be performed on the transmission signal of the first network device based on the phase shift matrix configuration determined by the second phase shift matrix.
  • the second network device can generate a phase shift matrix configuration according to the first phase shift matrix indication information after receiving the first phase shift matrix indication information sent by the first network device (base station), and perform signal processing on the transmission signal of the first network device based on the phase shift matrix configuration.
  • the present disclosure can enable the second network device to directly perform phase shift matrix configuration according to the first phase shift matrix indication information and perform signal processing on the transmission signal of the first network device through simple data processing, thereby avoiding the use of complex algorithms for iterative calculations, thereby simplifying the precoding process of the RIS, reducing the complexity of precoding, and improving the precoding efficiency.
  • FIG8 shows a precoding method according to an embodiment of the present disclosure, which is performed by a second network device, based on the embodiment shown in FIG6 , as shown in FIG8 , and may include the following steps.
  • Step 801 Receive second phase shift matrix indication information sent by a first network device, where the second phase shift matrix indication information includes incident angle information of a transmitted signal, second reflection angle information or second transmission angle information of a second network device.
  • the first network device may determine the second phase shift matrix indication information through steps 301 to 304 of the embodiment, and send the second phase shift matrix indication information to the second network device.
  • the second network device may receive the incident angle information of the transmitted signal, the second reflection angle information of the second network device, or the second transmission angle information.
  • Step 802 Determine a first phase shift matrix according to incident angle information of the transmitted signal, second reflection angle information or second transmission angle information of the second network device.
  • Step 803 Perform phase shift quantization processing on the first phase shift matrix to obtain a second phase shift matrix of the second network device.
  • Step 804 Determine a phase shift matrix configuration according to the second phase shift matrix.
  • Step 805 Perform signal processing on the transmission signal of the first network device based on the phase shift matrix configuration, wherein the signal processing includes signal reflection processing or signal transmission processing.
  • the second network device can generate a phase shift matrix configuration according to the second phase shift matrix indication information after receiving the second phase shift matrix indication information sent by the first network device (base station), and perform signal processing on the transmission signal of the first network device based on the phase shift matrix configuration.
  • the present disclosure can enable the second network device to directly perform phase shift matrix configuration according to the second phase shift matrix indication information and perform signal processing on the transmission signal of the first network device through simple data processing, thereby avoiding the use of complex algorithms for iterative calculations, thereby simplifying the precoding process of the RIS, reducing the complexity of precoding, and improving the precoding efficiency.
  • FIG. 9 shows a precoding method according to an embodiment of the present disclosure, which is performed by a second network device, based on the embodiment shown in FIG. 6 , as shown in FIG. 9 , and may include the following steps.
  • Step 901 Receive third phase shift matrix indication information sent by a first network device, where the third phase shift matrix indication information includes a second phase shift matrix.
  • the first network device may determine the third phase shift matrix indication information through steps 401 to 406 of the embodiment, and send the third phase shift matrix indication information to the second network device.
  • the second network device may receive the second phase shift matrix.
  • Step 902 Determine a phase shift matrix configuration according to the second phase shift matrix.
  • Step 903 Perform signal processing on the transmission signal of the first network device based on the phase shift matrix configuration, wherein the signal processing includes signal reflection processing or signal transmission processing.
  • the second network device can generate a phase shift matrix configuration according to the third phase shift matrix indication information after receiving the third phase shift matrix indication information sent by the first network device (base station), and perform signal processing on the transmission signal of the first network device based on the phase shift matrix configuration.
  • the present disclosure can enable the second network device to directly perform phase shift matrix configuration according to the third phase shift matrix indication information and perform signal processing on the transmission signal of the first network device through simple data processing, thereby avoiding the use of complex algorithms for iterative calculations, thereby simplifying the precoding process of the RIS, reducing the complexity of precoding, and improving the precoding efficiency.
  • FIG10 shows a precoding method according to an embodiment of the present disclosure, which is performed by a second network device, based on the embodiment shown in FIG6 , as shown in FIG10 , and may include the following steps.
  • Step 1001 Receive fourth phase shift matrix indication information sent by a first network device, where the fourth phase shift matrix indication information includes a phase shift matrix PMI.
  • the first network device may determine the fourth phase shift matrix indication information through steps 501 to 506 of the embodiment, and send the fourth phase shift matrix indication information to the second network device. Accordingly, the second network device may receive the phase shift matrix PMI.
  • Step 1002 Determine a first phase shift matrix according to the phase shift matrix PMI.
  • Step 1003 Perform phase shift quantization processing on the first phase shift matrix to obtain a second phase shift matrix of the second network device.
  • the first phase shift matrix is a continuous phase shift matrix calculated based on the incident angle information, the second reflection angle information or the second transmission angle information of the continuous phase, and the phase of the RIS can only be at a few discrete phases
  • the phase shift of each unit in the first phase shift matrix can be quantized to the discrete phase shift closest to the calculated phase shift.
  • the second phase shift matrix of the second network device is further obtained.
  • Step 1004 Determine a phase shift matrix configuration according to the second phase shift matrix.
  • Step 1005 Perform signal processing on the transmission signal of the first network device based on the phase shift matrix configuration, wherein the signal processing includes signal reflection processing or signal transmission processing.
  • the second network device can generate a phase shift matrix configuration according to the fourth phase shift matrix indication information after receiving the fourth phase shift matrix indication information sent by the first network device (base station), and perform signal processing on the transmit signal of the first network device based on the phase shift matrix configuration.
  • the present disclosure enables the second network device to directly perform phase shift matrix configuration according to the fourth phase shift matrix indication information and perform signal processing on the transmit signal of the first network device, thereby avoiding the use of complex algorithms for iterative calculations, thereby simplifying the precoding process of the RIS, reducing the complexity of precoding, and improving the precoding efficiency.
  • Fig. 11 is a flow chart of a precoding method according to an embodiment of the present disclosure. The method is executed by a terminal, and the method may include the following steps.
  • Step 1101 Report a PMI for a second network device and beam quality information corresponding to the PMI to a first network device.
  • the terminal may report the PMI for the second network device and the beam quality information corresponding to the PMI to the first network device, so that the first network device determines the phase shift matrix indication information of the second network device based on the information reported by the terminal, and after sending the phase shift matrix indication information to the second network device, the second network device can perform signal processing on the transmission signal of the first network device according to the phase shift matrix indication information.
  • the terminal reports the PMI for the second network device and the beam quality information corresponding to the PMI to the first network device, determines the phase shift matrix indication information of the second network device by using the first network device, and sends the phase shift matrix indication information to the second network device (RIS), so that the second network device can perform signal processing on the transmission signal of the first network device according to the phase shift matrix indication information.
  • the present disclosure can determine the phase shift matrix indication information containing precoding information in the first network device through simple data processing, so that the second network device can directly configure the phase shift matrix according to the phase shift matrix indication information, and perform signal processing on the transmission signal of the first network device. Therefore, the present disclosure can avoid using complex algorithms for iterative calculations, thereby simplifying the precoding process of RIS, reducing the complexity of precoding, and improving precoding efficiency.
  • the complete implementation process of the present disclosure may be:
  • One or more terminals report a precoding matrix identifier PMI and beam quality information corresponding to the PMI for the second network device to the first network device.
  • the beam quality information corresponding to the PMI is used to reflect the quality of beam transmission.
  • it can be measured using Reference Signal Receiving Power (RSRP), Signal to Interference plus Noise Ratio (SINR), Reference Signal Received Quality (RSRQ), Received Signal Strength Indicator (RSSI), etc.
  • RSRP Reference Signal Receiving Power
  • SINR Signal to Interference plus Noise Ratio
  • RSRQ Reference Signal Received Quality
  • RSSI Received Signal Strength Indicator
  • one of the above information can be used as the beam quality information corresponding to the PMI; as a possible implementation method, multiple types of the above information can also be fused through a preset algorithm (such as weighted fusion, etc.) to obtain the beam quality information corresponding to the PMI.
  • step 302 or 702 of the embodiments please refer to the relevant description in step 302 or 702 of the embodiments, which will not be repeated here.
  • the first network device sends the phase shift matrix indication information to the second network device.
  • the phase shift matrix indication information may include any one of the first phase shift matrix indication information, the second phase shift matrix indication information, the third phase shift matrix indication information and the fourth phase shift matrix indication information.
  • the first phase shift matrix indication information may include: the incident angle information of the transmitted signal, and the precoding matrix indicator (Precoding Matrix Indicator, PMI) for the second network device reported by multiple terminals and the beam quality information corresponding to the PMI;
  • the second phase shift matrix indication information may include: the incident angle information of the transmitted signal, the second reflection angle information or the second transmission angle information of the second network device;
  • the third phase shift matrix indication information may include: the phase shift matrix of the second network device;
  • the fourth phase shift matrix indication information may include the phase shift matrix PMI.
  • the first network device determines the first phase shift matrix indication information and sends the first phase shift matrix indication information to the second network device (see steps 201 to 204 of the embodiment)
  • the corresponding steps (2) to (5) above can be executed on the second network device (see steps 701 to 706 of the embodiment).
  • the first network device determines the second phase shift matrix indication information and sends the second phase shift matrix indication information to the second network device (see steps 301 to 304 of the embodiment)
  • the corresponding steps (4) to (5) above can be performed on the second network device (see steps 801 to 805 of the embodiment).
  • the second network device can directly receive the second phase shift matrix and then continue to execute step (7) (see steps 902 to 903 of the embodiment).
  • the second network device may execute steps 1002 to 1003 of the embodiment to obtain the second phase shift matrix of the second network device, and then further execute steps 1004 to 1005 of the embodiment to determine the phase shift matrix configuration according to the second phase shift matrix; and perform signal processing on the transmission signal of the first network device based on the phase shift matrix configuration, wherein the signal processing includes signal reflection processing or signal transmission processing.
  • the second network device performs signal processing on the transmission signal of the first network device according to the received phase shift matrix indication information.
  • the phase shift matrix indication information containing the precoding information can be determined in the first network device or the second network device through simple data processing, and the use of complex algorithms for iterative calculation can be avoided, thereby simplifying the precoding process of RIS, reducing the precoding complexity, and improving the precoding efficiency.
  • the methods provided by the embodiments of the present application are introduced from the perspectives of the first network device (base station), the second network device (RIS) and the terminal.
  • the first network device (base station), the second network device (RIS) and the terminal may include a hardware structure and a software module, and the functions are implemented in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • a certain function in the functions may be executed in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • the present disclosure also provides a first network device, a second network device and a terminal. Since the first network device, the second network device and the terminal provided in the embodiments of the present disclosure correspond to the precoding methods provided in the above-mentioned embodiments, the implementation method of the precoding method is also applicable to the power determination device of the side link provided in this embodiment, and will not be described in detail in this embodiment.
  • FIG. 12 is a schematic diagram of the structure of a first network device 1200 provided according to an embodiment of the present disclosure.
  • the first network device 1200 may include:
  • the processing module 1210 may be used to determine phase shift matrix indication information of the second network device
  • the sending module 1220 may be configured to send the phase shift matrix indication information to the second network device.
  • the phase shift matrix indication information is the first phase shift matrix indication information
  • the first phase shift matrix indication information includes the incident angle information of the transmitted signal, and the PMI for the second network device reported by multiple terminals and the beam quality information corresponding to the PMI.
  • the processing module 1210 can be used to determine the incident angle information of the transmitted signal; determine that the incident angle information of the transmitted signal, and the PMI for the second network device reported by multiple terminals and the beam quality information corresponding to the PMI is the first phase shift matrix indication information.
  • the phase shift matrix indication information is second phase shift matrix indication information
  • the second phase shift matrix indication information includes incident angle information of the transmitted signal, second reflection angle information or second transmission angle information of the second network device.
  • the processing module 1210 can be used to determine the incident angle information of the transmitted signal; and determine the second reflection angle information or second transmission angle information of the second network device based on the PMI reported by multiple terminals for the second network device and the beam quality information corresponding to the PMI; determine that the incident angle information of the transmitted signal, the second reflection angle information or the second transmission angle information of the second network device is the second phase shift matrix indication information.
  • the phase shift matrix indication information is third phase shift matrix indication information
  • the third phase shift matrix indication information includes the second phase shift matrix.
  • the processing module 1210 can be used to determine the second reflection angle information or the second transmission angle information of the second network device according to the PMI reported by multiple terminals and the beam quality information corresponding to the PMI for the second network device; determine the first phase shift matrix according to the incident angle information of the transmitted signal, the second reflection angle information or the second transmission angle information of the second network device; perform phase shift quantization processing on the first phase shift matrix to obtain the second phase shift matrix of the second network device; and determine that the second phase shift matrix is the third phase shift matrix indication information.
  • the phase shift matrix indication information is fourth phase shift matrix indication information
  • the fourth phase shift matrix indication information includes the phase shift matrix PMI.
  • the processing module 1210 can be used to determine the second reflection angle information or the second transmission angle information of the second network device according to the PMI reported by multiple terminals for the second network device and the beam quality information corresponding to the PMI; determine the first phase shift matrix according to the incident angle information of the transmitted signal, the second reflection angle information or the second transmission angle information of the second network device; determine the phase shift matrix PMI corresponding to the first phase shift matrix; and determine that the phase shift matrix PMI is the fourth phase shift matrix indication information.
  • the first network device 1200 further includes: a receiving module 1220;
  • the receiving module 1220 may be configured to receive PMIs for the second network device and beam quality information corresponding to the PMIs reported by multiple terminals.
  • the processing module 1210 can be used to determine the first reflection angle information or the first transmission angle information of multiple terminals based on the PMI for the second network device reported by multiple terminals; determine the second reflection angle information or the second transmission angle information of the second network device based on the first reflection angle information or the first transmission angle information of the multiple terminals, and the PMI for the second network device reported by multiple terminals and the beam quality information corresponding to the PMI.
  • the processing module 1210 can be used to determine the beam weight of the terminal based on the PMI for the second network device reported by multiple terminals and the beam quality information corresponding to the PMI; according to the beam weight of the terminal, the angle values in the first reflection angle information or the first transmission angle information of the multiple terminals are weighted to obtain the second reflection angle information or the second transmission angle information of the second network device.
  • the processing module 1210 can be used to determine the first reflection angle information or the first transmission angle information that meets the preset conditions in the first reflection angle information or the first transmission angle information of the multiple terminals based on the PMI for the second network device reported by the multiple terminals and the beam quality information corresponding to the PMI, as the second reflection angle information or the second transmission angle information of the second network device.
  • the sending module 1220 may be used to send any one of the first phase shift matrix indication information, the second phase shift matrix indication information, the third phase shift matrix indication information and the fourth phase shift matrix indication information to the second network device.
  • FIG. 13 is a schematic diagram of the structure of a second network device 1300 provided according to an embodiment of the present disclosure.
  • the second network device 1300 may include:
  • the receiving module 1310 may be configured to receive phase shift matrix indication information sent by the first network device
  • the processing module 1320 may be configured to perform signal processing on a transmission signal of the first network device according to the phase shift matrix indication information.
  • the phase shift matrix indication information is first phase shift matrix indication information
  • the first phase shift matrix indication information includes incident angle information of the transmitted signal, and PMI reported by multiple terminals for the second network device and beam quality information corresponding to the PMI.
  • the receiving module 1310 can be used to receive the incident angle information of the transmitted signal sent by the first network device, and PMI reported by multiple terminals for the second network device and beam quality information corresponding to the PMI.
  • the processing module 1320 may be used to determine the second reflection angle information or the second transmission angle information of the second network device based on the PMI for the second network device reported by multiple terminals and the beam quality information corresponding to the PMI; determine the first phase shift matrix based on the incident angle information of the transmitted signal, the second reflection angle information or the second transmission angle information of the second network device; perform phase shift quantization processing on the first phase shift matrix to obtain the second phase shift matrix of the second network device; determine the phase shift matrix configuration based on the second phase shift matrix; and perform signal processing on the transmitted signal of the first network device based on the phase shift matrix configuration, wherein the signal processing includes signal reflection processing or signal transmission processing.
  • the processing module 1320 can be used to determine the first reflection angle information or the first transmission angle information of multiple terminals based on the PMI for the second network device reported by multiple terminals; determine the second reflection angle information or the second transmission angle information of the second network device based on the first reflection angle information or the first transmission angle information of the multiple terminals, and the PMI for the second network device reported by multiple terminals and the beam quality information corresponding to the PMI.
  • the processing module 1320 can be used to determine the beam weight of the terminal based on the PMI reported by multiple terminals for the second network device and the beam quality information corresponding to the PMI; according to the beam weight of the terminal, the angle values in the first reflection angle information or the first transmission angle information of the multiple terminals are weighted to obtain the second reflection angle information or the second transmission angle information of the second network device.
  • the processing module 1320 can be used to determine the first reflection angle information or the first transmission angle information that meets the preset conditions in the first reflection angle information or the first transmission angle information of the multiple terminals based on the PMI for the second network device reported by the multiple terminals and the beam quality information corresponding to the PMI, as the second reflection angle information or the second transmission angle information of the second network device.
  • the phase shift matrix indication information is second phase shift matrix indication information
  • the second phase shift matrix indication information includes incident angle information of the transmitted signal, second reflection angle information or second transmission angle information of the second network device.
  • the receiving module 1310 can be used to receive the incident angle information of the transmitted signal sent by the first network device, the second reflection angle information or second transmission angle information of the second network device.
  • the processing module 1320 can be used to determine a first phase shift matrix based on incident angle information of a transmitted signal, second reflection angle information, or second transmission angle information of a second network device; perform phase shift quantization processing on the first phase shift matrix to obtain a second phase shift matrix of the second network device; determine a phase shift matrix configuration based on the second phase shift matrix; and perform signal processing on a transmitted signal of the first network device based on the phase shift matrix configuration, wherein the signal processing includes signal reflection processing or signal transmission processing.
  • the phase shift matrix indication information is third phase shift matrix indication information
  • the third phase shift matrix indication information includes a second phase shift matrix
  • the receiving module 1310 can be used to receive the second phase shift matrix sent by the first network device.
  • the processing module 1320 may be used to determine a phase shift matrix configuration according to the second phase shift matrix; and perform signal processing on a transmission signal of the first network device based on the phase shift matrix configuration, wherein the signal processing includes signal reflection processing or signal transmission processing.
  • the phase shift matrix indication information is fourth phase shift matrix indication information
  • the fourth phase shift matrix indication information includes a phase shift matrix PMI.
  • the receiving module 1310 may be configured to receive the phase shift matrix PMI sent by the first network device.
  • the processing module 1320 can be used to determine a first phase shift matrix based on the phase shift matrix PMI; perform phase shift quantization processing on the first phase shift matrix to obtain a second phase shift matrix of the second network device; determine a phase shift matrix configuration based on the second phase shift matrix; and perform signal processing on a transmission signal of the first network device based on the phase shift matrix configuration, wherein the signal processing includes signal reflection processing or signal transmission processing.
  • FIG. 14 is a schematic diagram of the structure of a terminal 1400 provided according to an embodiment of the present disclosure.
  • the terminal 1400 may include:
  • the sending module 1410 may be configured to report the PMI of the second network device and beam quality information corresponding to the PMI to the first network device.
  • FIG 15 is a schematic diagram of the structure of a communication device 1500 provided in an embodiment of the present application.
  • the communication device 1500 can be a network device, or a user device, or a chip, a chip system, or a processor that supports the network device to implement the above method, or a chip, a chip system, or a processor that supports the user device to implement the above method.
  • the device can be used to implement the method described in the above method embodiment, and the details can be referred to the description in the above method embodiment.
  • the communication device 1500 may include one or more processors 1501.
  • the processor 1501 may be a general-purpose processor or a dedicated processor, etc.
  • it may be a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and communication data
  • the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a computer program, and process the data of the computer program.
  • the communication device 1500 may further include one or more memories 1502, on which a computer program 1504 may be stored, and the processor 1501 executes the computer program 1504 so that the communication device 1500 performs the method described in the above method embodiment.
  • data may also be stored in the memory 1502.
  • the communication device 1500 and the memory 1502 may be provided separately or integrated together.
  • the communication device 1500 may further include a transceiver 1505 and an antenna 1506.
  • the transceiver 1505 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., and is used to implement a transceiver function.
  • the transceiver 1505 may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., and is used to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., and is used to implement a transmitting function.
  • the communication device 1500 may further include one or more interface circuits 1507.
  • the interface circuit 1507 is used to receive code instructions and transmit them to the processor 1501.
  • the processor 1501 executes the code instructions to enable the communication device 1500 to execute the method described in the above method embodiment.
  • the processor 1501 may include a transceiver for implementing the receiving and sending functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated.
  • the above-mentioned transceiver circuit, interface, or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.
  • the processor 1501 may store a computer program 1503, which runs on the processor 1501 and enables the communication device 1500 to perform the method described in the above method embodiment.
  • the computer program 1503 may be fixed in the processor 1501, in which case the processor 1501 may be implemented by hardware.
  • the communication device 1500 may include a circuit that can implement the functions of sending or receiving or communicating in the aforementioned method embodiments.
  • the processor and transceiver described in the present application can be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc.
  • the processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • N-type metal oxide semiconductor nMetal-oxide-semiconductor
  • PMOS bipolar junction transistor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a network device or a user device, but the scope of the communication device described in the present application is not limited thereto, and the structure of the communication device may not be limited by FIG. 15.
  • the communication device may be an independent device or may be part of a larger device.
  • the communication device may be:
  • the IC set may also include a storage component for storing data and computer programs;
  • ASIC such as modem
  • the communication device can be a chip or a chip system
  • the communication device can be a chip or a chip system
  • the schematic diagram of the chip structure shown in Figure 16 includes a processor 1601 and an interface 1602.
  • the number of processors 1601 can be one or more, and the number of interfaces 1602 can be multiple.
  • the chip further includes a memory 1603, and the memory 1603 is used to store necessary computer programs and data.
  • the present application also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.
  • the present application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.
  • the computer program product includes one or more computer programs.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer program can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated. Available media can be magnetic media (e.g., floppy disks, hard disks, tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid state disks (SSD)), etc.
  • At least one in the present application can also be described as one or more, and a plurality can be two, three, four or more, which is not limited in the present application.
  • the technical features in the technical feature are distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D”, etc., and there is no order of precedence or size between the technical features described by the "first”, “second”, “third”, “A”, “B”, “C” and “D”.
  • machine-readable medium and “computer-readable medium” refer to any computer program product, apparatus, and/or device (e.g., disk, optical disk, memory, programmable logic device (PLD)) for providing machine instructions and/or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal.
  • machine-readable signal refers to any signal for providing machine instructions and/or data to a programmable processor.
  • the systems and techniques described herein may be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components.
  • the components of the system may be interconnected by any form or medium of digital data communication (e.g., a communications network). Examples of communications networks include: a local area network (LAN), a wide area network (WAN), and the Internet.
  • a computer system may include clients and servers.
  • Clients and servers are generally remote from each other and usually interact through a communication network.
  • the relationship of client and server is generated by computer programs running on respective computers and having a client-server relationship to each other.

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Abstract

本公开提出了一种预编码方法及装置，涉及无线通信技术领域，根据本公开提供了的预编码方法及装置，其中第一网络设备可确定第二网络设备的相移矩阵指示信息；将所述相移矩阵指示信息发送至所述第二网络设备。本公开能够简化RIS的预编码过程，降低预编码复杂度，提高预编码效率。

Description

预编码方法及装置 技术领域
本公开涉及无线通信技术领域，特别涉及一种预编码方法及装置。
背景技术
传统通信中无线环境是不可控因素，其不可控性通常对通信效率有负面作用，会降低服务质量。信号衰减限制了无线信号的传播距离，多径效应导致衰落现象，大型物体的反射和折射更是主要的不可控因素。将智能超表面(Reconfigurable Intelligent Surface，RIS)部署在无线传输环境中各类物体的表面，有望突破传统无线信道的不可控性，构建智能可编程无线，引入未来无线通信的新范式。具体地说，RIS可以通过预编码技术，将入射到其表面的信号反射到特定的方向，从而增强接收端信号强度，实现对信道的控制。
目前，RIS预编码技术已经成为学术界的研究热点，在学术界，主要通过交替优化技术对RIS和基站处的预编码进行联合设计。然而，在联合设计的过程中需要采用相应的通信算法不断进行迭代计算，以确定RIS的预编码矩阵，由此增加了预编码的复杂度，从而导致预编码效率较低，并不适合实际应用。
发明内容
本公开提供了一种预编码方法及装置，能够简化RIS的预编码过程，降低预编码复杂度，提高预编码效率。
本公开的第一方面实施例提供了一种预编码方法，所述方法由第一网络设备执行，所述方法包括：
确定第二网络设备的相移矩阵指示信息；
将所述相移矩阵指示信息发送至所述第二网络设备。
在本公开的一些实施例中，所述相移矩阵指示信息为第一相移矩阵指示信息，所述第一相移矩阵指示信息包括发射信号的入射角信息、以及多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，所述确定第二网络设备的相移矩阵指示信息，包括：
确定发射信号的入射角信息；
确定所述发射信号的入射角信息，以及多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，为所述第一相移矩阵指示信息。
在本公开的一些实施例中，所述相移矩阵指示信息为第二相移矩阵指示信息，所述第二相移矩阵指示信息包括发射信号的入射角信息、所述第二网络设备的第二反射角信息或第二透射角信息，所述确定第二网络设备的相移矩阵指示信息，包括：
确定发射信号的入射角信息；以及
根据多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息；
确定所述发射信号的入射角信息、所述第二网络设备的第二反射角信息或第二透射角信息为所述第二相移矩阵指示信息。
在本公开的一些实施例中，所述相移矩阵指示信息为第三相移矩阵指示信息，所述第三相移矩阵指示信息包括第二相移矩阵，所述确定第二网络设备的相移矩阵指示信息，包括：
根据多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息；
根据发射信号的入射角信息、所述第二网络设备的第二反射角信息或第二透射角信息确定第一相移矩阵；
对所述第一相移矩阵进行相移量化处理，得到第二网络设备的第二相移矩阵；
确定所述第二相移矩阵为所述第三相移矩阵指示信息。
在本公开的一些实施例中，所述相移矩阵指示信息为第四相移矩阵指示信息，所述第四相移矩阵指示信息包括相移矩阵PMI，所述确定第二网络设备的相移矩阵指示信息，包括：
根据多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息；
根据发射信号的入射角信息、所述第二网络设备的第二反射角信息或第二透射角信息确定第一相移矩阵；
确定所述第一相移矩阵对应的相移矩阵PMI；
确定所述相移矩阵PMI为所述第四相移矩阵指示信息。
在本公开的一些实施例中，所述方法还包括：
接收多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息。
在本公开的一些实施例中，所述根据多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息，包括：
根据多个终端上报的针对第二网络设备的PMI，确定所述多个终端的第一反射角信息或第一透射角信息；
根据所述多个终端的第一反射角信息或第一透射角信息，以及所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息。
在本公开的一些实施例中，所述根据所述多个终端的第一反射角信息或第一透射角信息，以及所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息，包括：
基于所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定终端的波束权重；
根据所述终端的波束权重，对所述多个终端的第一反射角信息或第一透射角信息中的角度值进行加权处理，得到所述第二网络设备的第二反射角信息或第二透射角信息。
在本公开的一些实施例中，所述根据所述多个终端的第一反射角信息或第一透射角信息，以及所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息，包括：
基于所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，在所述多个终端的第一反射角信息或第一透射角信息中确定符合预设条件的第一反射角信息或第一透射角信息，作为所述第二网络设备的第二反射角信息或第二透射角信息。
在本公开的一些实施例中，所述将所述相移矩阵指示信息发送至所述第二网络设备，包括：
将所述第一相移矩阵指示信息、所述第二相移矩阵指示信息、所述第三相移矩阵指示信息以及所述第四相移矩阵指示信息中的任意一项发送至所述第二网络设备。
本公开的第二方面实施例提供了一种预编码方法，所述方法由第二网络设备执行，所述方法包括：
接收第一网络设备发送的相移矩阵指示信息；
根据所述相移矩阵指示信息对所述第一网络设备的发射信号进行信号处理。
在本公开的一些实施例中，所述相移矩阵指示信息为第一相移矩阵指示信息，所述第一相移矩阵指示信息包括发射信号的入射角信息、以及多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，所述接收第一网络设备发送的相移矩阵指示信息，包括：
接收第一网络设备发送的发射信号的入射角信息、以及多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息。
在本公开的一些实施例中，所述根据所述相移矩阵指示信息进行信号处理，包括：
根据所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息；
根据所述发射信号的入射角信息、所述第二网络设备的第二反射角信息或第二透射角信息确定第一 相移矩阵；
对所述第一相移矩阵进行相移量化处理，得到第二网络设备的第二相移矩阵；
根据所述第二相移矩阵确定相移矩阵配置；
基于所述相移矩阵配置对所述第一网络设备的发射信号进行信号处理，其中，所述信号处理包括信号反射处理或信号透射处理。
在本公开的一些实施例中，所述根据所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息，包括：
根据所述多个终端上报的针对第二网络设备的PMI，确定所述多个终端的第一反射角信息或第一透射角信息；
根据所述多个终端的第一反射角信息或第一透射角信息，以及所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息。
在本公开的一些实施例中，所述根据所述多个终端的第一反射角信息或第一透射角信息，以及所述多个终端上报的针对第二网络设备的PMI和所述波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息，包括：
基于所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定终端的波束权重；
根据所述终端的波束权重，对所述多个终端的第一反射角信息或第一透射角信息中的角度值进行加权处理，得到所述第二网络设备的第二反射角信息或第二透射角信息。
在本公开的一些实施例中，所述根据所述多个终端的第一反射角信息或第一透射角信息，以及所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息，包括：
基于所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，在所述多个终端的第一反射角信息或第一透射角信息中确定符合预设条件的第一反射角信息或第一透射角信息，作为所述第二网络设备的第二反射角信息或第二透射角信息。
在本公开的一些实施例中，所述相移矩阵指示信息为第二相移矩阵指示信息，所述第二相移矩阵指示信息包括发射信号的入射角信息、所述第二网络设备的第二反射角信息或第二透射角信息，所述接收第一网络设备发送的相移矩阵指示信息，包括：
接收第一网络设备发送的发射信号的入射角信息、所述第二网络设备的第二反射角信息或第二透射角信息。
在本公开的一些实施例中，所述根据所述相移矩阵指示信息进行信号处理，包括：
根据所述发射信号的入射角信息、所述第二网络设备的第二反射角信息或第二透射角信息确定第一相移矩阵；
对所述第一相移矩阵进行相移量化处理，得到第二网络设备的第二相移矩阵；
根据所述第二相移矩阵确定相移矩阵配置；
基于所述相移矩阵配置对所述第一网络设备的发射信号进行信号处理，其中，所述信号处理包括信号反射处理或信号透射处理。
在本公开的一些实施例中，所述相移矩阵指示信息为第三相移矩阵指示信息，所述第三相移矩阵指示信息包括第二相移矩阵，所述接收第一网络设备发送的相移矩阵指示信息，包括：
接收第一网络设备发送的第二相移矩阵。
在本公开的一些实施例中，所述根据所述相移矩阵指示信息进行信号处理，包括：
根据所述第二相移矩阵确定相移矩阵配置；
基于所述相移矩阵配置对所述第一网络设备的发射信号进行信号处理，其中，所述信号处理包括信号反射处理或信号透射处理。
在本公开的一些实施例中，所述相移矩阵指示信息为第四相移矩阵指示信息，所述第四相移矩阵指 示信息包括相移矩阵PMI，所述接收第一网络设备发送的相移矩阵指示信息，包括：
接收第一网络设备发送的相移矩阵PMI。
在本公开的一些实施例中，所述根据所述相移矩阵指示信息进行信号处理，包括：
根据所述相移矩阵PMI确定第一相移矩阵；
对所述第一相移矩阵进行相移量化处理，得到第二网络设备的第二相移矩阵；
根据所述第二相移矩阵确定相移矩阵配置；
基于所述相移矩阵配置对所述第一网络设备的发射信号进行信号处理，其中，所述信号处理包括信号反射处理或信号透射处理。
本公开的第三方面实施例提供了一种预编码方法，所述方法由终端执行，所述方法包括：
向第一网络设备上报针对第二网络设备的PMI和所述PMI对应的波束质量信息。
本公开的第四方面实施例提供了一种第一网络设备，所述第一网络设备包括：
处理模块，用于确定第二网络设备的相移矩阵指示信息；
发送模块，用于将所述相移矩阵指示信息发送至所述第二网络设备。
本公开的第五方面实施例提供了一种第二网络设备，所述第二网络设备包括：
接收模块，用于接收第一网络设备发送的相移矩阵指示信息；
处理模块，用于根据所述相移矩阵指示信息对所述第一网络设备的发射信号进行信号处理。
本公开的第六方面实施例提供了一种终端，所述终端包括：
发送模块，用于向第一网络设备上报针对第二网络设备的PMI和所述PMI对应的波束质量信息。
本公开的第七方面实施例提供了一种通信设备，该通信设备包括：收发器；存储器；处理器，分别与收发器及存储器连接，配置为通过执行存储器上的计算机可执行指令，控制收发器的无线信号收发，并能够实现如本公开第一方面实施例或第二方面实施例或第三方面实施例的方法。
本公开的第八方面实施例提供了一种计算机存储介质，其中，计算机存储介质存储有计算机可执行指令；计算机可执行指令被处理器执行后，能够实现如本公开第一方面实施例或第二方面实施例或第三方面实施例的方法。
本公开的第九方面实施例提供了一种通信系统，包括第一网络设备、第二网络设备以及终端，其中，所述第一网络设备用于执行如本公开第一方面实施例的方法；所述第二网络设备用于执行如本公开第二方面实施例的方法；所述终端用于执行如本公开第三方面实施例的方法。
本公开实施例提供了一种预编码方法及装置，第一网络设备(基站)可通过确定第二网络设备的相移矩阵指示信息，将相移矩阵指示信息发送至第二网络设备(RIS)，以使第二网络设备能够根据相移矩阵指示信息对第一网络设备的发射信号进行信号处理。本公开能够通过简单数据处理，在第一网络设备中确定包含有预编码信息的相移矩阵指示信息，使第二网络设备可以直接根据相移矩阵指示信息进行相移矩阵配置，对第一网络设备的发射信号进行信号处理，因此本公开能够避免采用复杂算法对RIS和基站处的预编码进行联合设计，从而能够简化RIS的预编码过程，降低预编码复杂度，提高预编码效率。
本公开附加的方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本公开的实践了解到。
附图说明
本公开上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解，其中：
图1为根据本公开实施例的一种预编码方法的流程示意图；
图2为根据本公开实施例的一种预编码方法的流程示意图；
图3为根据本公开实施例的一种预编码方法的流程示意图；
图4为根据本公开实施例的一种预编码方法的流程示意图；
图5为根据本公开实施例的一种预编码方法的流程示意图；
图6为根据本公开实施例的一种预编码方法的流程示意图；
图7为根据本公开实施例的一种预编码方法的流程示意图；
图8为根据本公开实施例的一种预编码方法的流程示意图；
图9为根据本公开实施例的一种预编码方法的流程示意图；
图10为根据本公开实施例的一种预编码方法的流程示意图；
图11为根据本公开实施例的一种预编码方法的流程示意图；
图12为根据本公开实施例的一种预编码装置的框图；
图13为根据本公开实施例的一种预编码装置的框图；
图14为根据本公开实施例的一种预编码装置的框图；
图15为根据本公开实施例的一种通信装置的结构示意图；
图16为本公开实施例提供的一种芯片的结构示意图。
具体实施方式
下面详细描述本公开的实施例，实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本公开，而不能理解为对本公开的限制。
在智能超表面(Reconfigurable intelligent surface，RIS)辅助的通信系统中，基站通过RIS将信号反射到终端，RIS的每个单元可以对接收信号进行不同的相位偏移，从而实现反射波束方向可调的效果。同时现有研究表明，RIS单元的偏移相角只能是几个离散值。为了将RIS的入射信号反射到接收端，需要对RIS单元的偏移相位进行配置，即预编码。目前，RIS预编码技术已经成为学术界的研究热点，在学术界，主要通过交替优化技术对RIS和基站处的预编码进行联合设计。然而，在联合设计的过程中需要采用相应的通信算法不断进行迭代计算，以确定RIS的预编码矩阵，由此增加了预编码的复杂度，从而导致预编码效率较低，并不适合实际应用。
为此，本公开提出了一种预编码方法及装置，能够简化RIS的预编码过程，降低预编码复杂度，提高预编码效率。
下面结合附图对本申请所提供的预编码方法及装置进行详细地介绍。
图1示出了根据本公开实施例的一种预编码方法的流程示意图。如图1所示，该方法包括由第一网络设备执行，其中，第一网络设备可为基站，实施例且可以包括以下步骤。
步骤101、确定第二网络设备的相移矩阵指示信息。
其中，第二网络设备可为RIS，相移矩阵指示信息用于确定第二网络设备的相移矩阵配置，以使第二网络设备基于相移矩阵配置对第一网络设备的发射信号进行信号反射处理或信号透射处理，相应的，确定第二网络设备的相移矩阵指示信息的具体实现过程可为：
(1)一个或多个终端向第一网络设备上报针对第二网络设备的预编码矩阵标识(Precoding Matrix Indicator，PMI)，此外，还可向第一网络设备上报PMI对应的波束质量信息或其他能够用于确定波束权重的信息(如终端的优先级信息等等)。
其中，PMI对应的波束质量信息用于反映波束传输的质量，在具体的应用场景中，可使用参考信号接收功率(Reference Signal Receiving Power，RSRP)、信号与干扰加噪声比(Signal to Interference plus Noise Ratio，SINR)、参考信号接收质量(Reference Singnal Received Quality,RSRQ)、接收信号的强度指示(Received Signal Strength Indicator，RSSI)等来对其进行衡量。示例性的，作为一种可能的实现方式，可将上述信息中的一种作为PMI对应的波束质量信息；作为一种可能的实现方式， 还可将上述信息中的多种通过预设算法进行信息融合(如加权融合等)，得到PMI对应的波束质量信息。
(2)、第一网络设备根据终端上报的信息确定第二网络设备的相移矩阵指示信息。
其中，第二网络设备的相移矩阵指示信息可包括第一相移矩阵指示信息、第二相移矩阵指示信息、第三相移矩阵指示信息以及第四相移矩阵指示信息中的任意一项。第一相移矩阵指示信息可包括：发射信号的入射角信息、以及多个终端上报的针对第二网络设备的预编码矩阵标识(Precoding Matrix Indicator，PMI)和PMI对应的波束质量信息；第二相移矩阵指示信息可包括：发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息；第三相移矩阵指示信息可包括：第二网络设备的相移矩阵；第四相移矩阵指示信息可包括相移矩阵PMI。
相应的，第一网络设备根据终端上报的信息确定第一相移矩阵指示信息的具体实现过程可参见实施例步骤201至203中的相关描述；第一网络设备根据终端上报的信息确定第二相移矩阵指示信息的具体实现过程可参见实施例步骤301至303中的相关描述；第一网络设备根据终端上报的信息确定第三相移矩阵指示信息的具体实现过程可参见实施例步骤401至405中的相关描述；第一网络设备根据终端上报的信息确定第四相移矩阵指示信息的具体实现过程可参见实施例步骤501至505中的相关描述。
步骤102、将相移矩阵指示信息发送至第二网络设备。
对于本公开实施例，实施例步骤可包括：将第一相移矩阵指示信息、第二相移矩阵指示信息、第三相移矩阵指示信息以及第四相移矩阵指示信息中的任意一项发送至第二网络设备，以使第二网络设备依据第一相移矩阵指示信息、第二相移矩阵指示信息、第三相移矩阵指示信息以及第四相移矩阵指示信息中的任意一项确定相移矩阵配置，并基于相移矩阵配置对第一网络设备的发射信号进行信号反射处理或信号透射处理。
综上，根据本公开实施例提供的预编码方法，第一网络设备(基站)可通过确定第二网络设备的相移矩阵指示信息，将相移矩阵指示信息发送至第二网络设备(RIS)，以使第二网络设备能够根据相移矩阵指示信息对第一网络设备的发射信号进行信号处理。本公开能够通过简单数据处理，在第一网络设备中确定包含有预编码信息的相移矩阵指示信息，使第二网络设备可以直接根据相移矩阵指示信息进行相移矩阵配置，对第一网络设备的发射信号进行信号处理，因此本公开能够避免采用复杂算法进行迭代计算，从而能够简化RIS的预编码过程，降低预编码复杂度，提高预编码效率。
图2示出了根据本公开实施例的一种预编码方法，该方法由第一网络设备执行，基于图1所示实施例，如图2所示，且可以包括以下步骤。
步骤201、接收多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息。
步骤202、确定发射信号的入射角信息。
其中，入射角信息为第一网络设备(基站)所发射的发射信号，在第二网络设备(RIS)处的入射角度，可由基站通过信道估计，或通过协议约定，或通过感知RIS反馈的信息等多种可选途径确定得到。
步骤203、确定发射信号的入射角信息，以及多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，为第一相移矩阵指示信息。
步骤204、将第一相移矩阵指示信息发送至第二网络设备。
综上，根据本公开实施例提供的预编码方法，第一网络设备(基站)可直接将发射信号的入射角信息，以及多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息确定为第一相移矩阵指示 信息，并将第一相移矩阵指示信息发送至第二网络设备，以使第二网络设备能够根据第一相移矩阵指示信息对第一网络设备的发射信号进行信号处理。由于第一相移矩阵指示信息中包含了预编码信息或波束信息，使第二网络设备可以直接根据第一相移矩阵指示信息进行相移矩阵配置，对第一网络设备的发射信号进行信号处理，因此本公开能够避免采用复杂算法进行迭代计算，从而能够简化RIS的预编码过程，降低预编码复杂度，提高预编码效率。
图3示出了根据本公开实施例的一种预编码方法，该方法由第一网络设备执行，基于图1所示实施例，如图3所示，且可以包括以下步骤。
步骤301、接收多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息。
步骤302、确定发射信号的入射角信息，以及根据多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，确定第二网络设备的第二反射角信息或第二透射角信息。
对于本公开实施例，在根据多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，确定第二网络设备的第二反射角信息或第二透射角信息时，实施例步骤具体可以包括：根据多个终端上报的针对第二网络设备的PMI，确定多个终端的第一反射角信息或第一透射角信息；根据多个终端的第一反射角信息或第一透射角信息，以及多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，确定第二网络设备的第二反射角信息或第二透射角信息。其中，反射角信息和透射角信息可从两个维度的角度联合表示：第一维度是水平维、第二维度是垂直维。即多个终端的第一反射角信息包括水平维第一反射角信息和垂直维第一反射角信息，多个终端的第一透射角信息包括水平维第一透射角信息和垂直维第一透射角信息，相应的，第二网络设备的第二反射角信息包括水平维第二反射角信息和垂直维第二反射角信息，第二网络设备的第二透射角信息包括水平维第二透射角信息和垂直维第二透射角信息。
相应的，在确定第二网络设备的第二反射角信息或第二透射角信息时，可利用多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息中的至少一种，与多个终端的第一反射角信息或第一透射角信息一同确定第二网络设备的第二反射角信息或第二透射角信息。即，可利用多个终端上报的PMI对应的波束质量信息与多个终端的第一反射角信息或第一透射角信息，确定第二网络设备的第二反射角信息或第二透射角信息；还可利用多个终端上报的针对第二网络设备的PMI与多个终端的第一反射角信息或第一透射角信息，确定第二网络设备的第二反射角信息或第二透射角信息；还可利用多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，与多个终端的第一反射角信息或第一透射角信息，一同联合确定第二网络设备的第二反射角信息或第二透射角信息。
作为一种可能的实现方式，可加权确定第二网络设备的第二反射角信息或第二透射角信息。具体可根据第二网络设备的PMI和PMI对应的波束质量信息中的至少一种计算各个终端的权重值，依据权重值对多个终端的第一反射角信息或第一透射角信息进行加权，确定第二网络设备的第二反射角信息或第二透射角信息。示例性的，在根据PMI对应的波束质量信息计算各个终端的权重值时，以水平维度下，且包括三个终端为例，水平维第一反射角信息或水平维第一透射角信息对应的角度分别为α 1，α 2，α 3，对应的波束质量分别为b 1，b 2，b 3，则RIS所使用的水平维第二反射角信息或水平维第二透射角信息为c 1*α 1+c 2*α 2+c 3*α 3，其中，c 1,c 2,c 3∈[0,1],c 1+c 2+c 3＝1，c 1,c 2,c 3为对应α 1，α 2，α 3的权值，根据b 1，b 2，b 3确定，其中，权值确定示例：
Figure PCTCN2022126285-appb-000001
相应的，垂直维以相同方式确定，在此不再赘述。相应的，实施例步骤可以包括：基于多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，确定终端的波束权重；根据终端的波束权重，对多个终端的第一反射角信息或第一透射角信息中的角度值进行加权处理，得到第二网络设备的第二反射角信息或第二 透射角信息。
作为一种可能的实现方式，可将多个终端对应的第一反射角信息或第一透射角信息中，波束质量最好的方向作为第二网络设备的第二反射角信息或第二透射角信息，即对应加权方式中，将波束质量最好的第一反射角信息或第一透射角信息的权值设置为1，其他方向权值设置为0。其中，波束质量可根据第二网络设备的PMI和PMI对应的波束质量信息中的至少一种来确定。在本公开实施例中，可将多个终端对应的多个水平维第一反射角信息中波束质量最好的水平维第一反射角信息，确定为第二网络设备水平维的第二反射角信息；将多个终端对应的多个垂直维第一反射角信息中波束质量最好的垂直维第一反射角信息，确定为第二网络设备垂直维的第二反射角信息。相应的，实施例步骤还可以包括：基于多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，在多个终端的第一反射角信息或第一透射角信息中确定符合预设条件的第一反射角信息或第一透射角信息，作为第二网络设备的第二反射角信息或第二透射角信息。其中，预设条件可为波束质量最优，或还可结合实际应用场景设置其他的筛选条件，在此不进行穷举。
步骤303、确定发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息为第二相移矩阵指示信息。
步骤304、将第二相移矩阵指示信息发送至第二网络设备。
综上，根据本公开实施例提供的预编码方法，第一网络设备(基站)可在接收多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息后，确定发射信号的入射角信息，以及根据多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，确定第二网络设备的第二反射角信息或第二透射角信息，进而将发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息确定为第二相移矩阵指示信息，并将第二相移矩阵指示信息发送至第二网络设备，以使第二网络设备能够根据第二相移矩阵指示信息对第一网络设备的发射信号进行信号处理。由于第二相移矩阵指示信息中包含了预编码信息或波束信息，使第二网络设备可以直接根据第二相移矩阵指示信息进行相移矩阵配置，对第一网络设备的发射信号进行信号处理，因此本公开能够避免采用复杂算法进行迭代计算，从而能够简化RIS的预编码过程，降低预编码复杂度，提高预编码效率。
图4示出了根据本公开实施例的一种预编码方法，该方法由第一网络设备执行，基于图1所示实施例，如图4所示，且可以包括以下步骤。
步骤401、接收多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息。
步骤402、根据多个终端上报的针对针对第二网络设备的PMI和PMI对应的波束质量信息，确定第二网络设备的第二反射角信息或第二透射角信息。
对于本公开实施例，具体可参见实施例步骤302中的相关描述，在此不再赘述。
步骤403、根据发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息确定第一相移矩阵。
对于本公开实施例，作为一种可能的实现方式，可根据发射信号的入射角信息与第二网络设备的第二反射角信息，计算用于支持进行信号反射处理的第一相移矩阵；作为一种可能的实现方式，可根据发射信号的入射角信息与第二网络设备的第二透射角信息，计算用于支持进行信号透射处理的第一相移矩阵。
步骤404、对第一相移矩阵进行相移量化处理，得到第二网络设备的第二相移矩阵。
在具体的应用场景中，鉴于第一相移矩阵是基于连续相位的入射角信息、第二反射角信息或第二透射角信息计算得到的连续相移矩阵，而RIS的相位仅能在几个离散的相位上，故在计算得到第一相移矩阵后，还需要对第一相移矩阵进行相移量化处理，将第一相移矩阵中每个单元的相移量化到RIS支持的相移上。具体可基于最小距离准则，将第一相移矩阵中每个单元的相移量化到离求出的相移最近的离散相移上，在相移量化完成后，进一步得到第二网络设备的第二相移矩阵。
步骤405、确定第二相移矩阵为第三相移矩阵指示信息。
步骤406、将第三相移矩阵指示信息发送至第二网络设备。
综上，根据本公开实施例提供的预编码方法，第一网络设备(基站)可在接收多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息后，确定发射信号的入射角信息，以及根据多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，确定第二网络设备的第二反射角信息或第二透射角信息；进而根据发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息确定第一相移矩阵，并对第一相移矩阵进行相移量化处理，得到第二网络设备的第二相移矩阵；之后将第二相移矩阵作为第三相移矩阵指示信息发送至第二网络设备，以使第二网络设备能够根据第三相移矩阵指示信息对第一网络设备的发射信号进行信号处理。由于第三相移矩阵指示信息中包含了预编码信息或波束信息，使第二网络设备可以直接根据第三相移矩阵指示信息进行相移矩阵配置，对第一网络设备的发射信号进行信号处理，因此本公开能够避免采用复杂算法进行迭代计算，从而能够简化RIS的预编码过程，降低预编码复杂度，提高预编码效率。
图5示出了根据本公开实施例的一种预编码方法，该方法由第一网络设备执行，基于图1所示实施例，如图5所示，且可以包括以下步骤。
步骤501、接收多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息。
步骤502、根据多个终端上报的针对针对第二网络设备的PMI和PMI对应的波束质量信息，确定第二网络设备的第二反射角信息或第二透射角信息。
对于本公开实施例，具体可参见实施例步骤302中的相关描述，在此不再赘述。
步骤503、根据发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息确定第一相移矩阵。
步骤504、确定第一相移矩阵对应的相移矩阵PMI。
对于本公开实施例，在确定得到第一相移矩阵后，可提取出第一相移矩阵对应的相移矩阵PMI，以便将相移矩阵PMI直接确定为第四相移矩阵指示信息。
步骤505、确定相移矩阵PMI为第四相移矩阵指示信息。
步骤506、将第四相移矩阵指示信息发送至第二网络设备。
综上，根据本公开实施例提供的预编码方法，第一网络设备(基站)可在接收多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息后，确定发射信号的入射角信息，以及根据多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，确定第二网络设备的第二反射角信息或第二透射角信息；进而根据发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息确定第一相移矩阵，并确定第一相移矩阵对应的相移矩阵PMI；之后将相移矩阵PMI作为第四相移矩阵指示信息发送至第二网络设备，使第二网络设备可以直接根据第四相移矩阵指示信息进行相移矩阵配置，对 第一网络设备的发射信号进行信号处理，由此能够避免采用复杂算法进行迭代计算，从而能够简化RIS的预编码过程，降低预编码复杂度，提高预编码效率。
图6根据本公开实施例的一种预编码方法的流程示意图。该方法由第二网络设备执行，其中，第二网络设备可为RIS，实施例且可以包括以下步骤。
步骤601、接收第一网络设备发送的相移矩阵指示信息。
其中，相移矩阵指示信息可为终端在接收到一个或多个终端上报的信息后，根据终端上报信息确定的，终端上报信息可包括针对第二网络设备的PMI以及PMI对应的波束质量信息等。相移矩阵指示信息用于确定第二网络设备的相移矩阵配置，以使第二网络设备基于相移矩阵配置对第一网络设备的发射信号进行信号反射处理或信号透射处理。具体的，第二网络设备的相移矩阵指示信息可包括第一相移矩阵指示信息、第二相移矩阵指示信息、第三相移矩阵指示信息以及第四相移矩阵指示信息中的任意一项。第一相移矩阵指示信息可包括：发射信号的入射角信息、以及多个终端上报的针对第二网络设备的预编码矩阵标识(Precoding Matrix Indicator，PMI)和PMI对应的波束质量信息；第二相移矩阵指示信息可包括：发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息；第三相移矩阵指示信息可包括：第二网络设备的相移矩阵；第四相移矩阵指示信息可包括相移矩阵PMI。
步骤602、根据相移矩阵指示信息对第一网络设备的发射信号进行信号处理。
对于本公开实施例，第二网络设备可依据第一相移矩阵指示信息、第二相移矩阵指示信息、第三相移矩阵指示信息以及第四相移矩阵指示信息中的任意一项确定相移矩阵配置，并基于相移矩阵配置对第一网络设备的发射信号进行信号反射处理或信号透射处理。其中，第二网络设备根据第一相移矩阵指示信息对第一网络设备的发射信号进行信号处理的具体实现过程可参见实施例步骤701至706中的相关描述；第二网络设备根据第二相移矩阵指示信息对第一网络设备的发射信号进行信号处理的具体实现过程可参见实施例步骤801至805中的相关描述；第二网络设备根据第三相移矩阵指示信息对第一网络设备的发射信号进行信号处理的具体实现过程可参见实施例步骤901至903中的相关描述；第二网络设备根据第四相移矩阵指示信息对第一网络设备的发射信号进行信号处理的具体实现过程可参见实施例步骤1001至1005中的相关描述。
综上，根据本公开实施例提供的预编码方法，第二网络设备(RIS)可在接收到第一网络设备(基站)发送的相移矩阵指示信息后，根据相移矩阵指示信息对第一网络设备的发射信号进行信号处理。本公开能够通过简单数据处理，使第二网络设备可以直接根据相移矩阵指示信息进行相移矩阵配置，对第一网络设备的发射信号进行信号处理，由此能够避免采用复杂算法进行迭代计算，从而能够简化RIS的预编码过程，降低预编码复杂度，提高预编码效率。
图7示出了根据本公开实施例的一种预编码方法，该方法由第二网络设备执行，基于图6所示实施例，如图7所示，且可以包括以下步骤。
步骤701、接收第一网络设备发送的第一相移矩阵指示信息，第一相移矩阵指示信息包括发射信号的入射角信息、以及多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息。
在具体的应用场景中，第一网络设备可经过实施例步骤201至204确定第一相移矩阵指示信息，并将第一相移矩阵指示信息发送至第二网络设备。相应的，第二网络设备可接收到发射信号的入射角信息、以及多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息。
步骤702、根据多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，确定第二网络设备的第二反射角信息或第二透射角信息。
对于本公开实施例，在根据多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，确定第二网络设备的第二反射角信息或第二透射角信息时，实施例步骤具体可以包括：根据多个终端上报的针对第二网络设备的PMI，确定多个终端的第一反射角信息或第一透射角信息；根据多个终端的第一反射角信息或第一透射角信息，以及多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，确定第二网络设备的第二反射角信息或第二透射角信息。其中，反射角信息和透射角信息可从两个维度的角度联合表示：第一维度是水平维、第二维度是垂直维。即多个终端的第一反射角信息包括水平维第一反射角信息和垂直维第一反射角信息，多个终端的第一透射角信息包括水平维第一透射角信息和垂直维第一透射角信息，相应的，第二网络设备的第二反射角信息包括水平维第二反射角信息和垂直维第二反射角信息，第二网络设备的第二透射角信息包括水平维第二透射角信息和垂直维第二透射角信息。
在确定第二网络设备的第二反射角信息或第二透射角信息时，可利用多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息中的至少一种，与多个终端的第一反射角信息或第一透射角信息一同确定第二网络设备的第二反射角信息或第二透射角信息。即，可利用多个终端上报的PMI对应的波束质量信息与多个终端的第一反射角信息或第一透射角信息，确定第二网络设备的第二反射角信息或第二透射角信息；还可利用多个终端上报的针对第二网络设备的PMI与多个终端的第一反射角信息或第一透射角信息，确定第二网络设备的第二反射角信息或第二透射角信息；还可利用多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，与多个终端的第一反射角信息或第一透射角信息，一同联合确定第二网络设备的第二反射角信息或第二透射角信息。
作为一种可能的实现方式，可加权确定第二网络设备的第二反射角信息或第二透射角信息。具体可根据第二网络设备的PMI和PMI对应的波束质量信息中的至少一种计算各个终端的权重值，依据权重值对多个终端的第一反射角信息或第一透射角信息进行加权，确定第二网络设备的第二反射角信息或第二透射角信息。示例性的，在根据PMI对应的波束质量信息计算各个终端的权重值时，以水平维度下，且包括三个终端为例，水平维第一反射角信息或水平维第一透射角信息对应的角度分别为α 1，α 2，α 3，对应的波束质量分别为b 1，b 2，b 3，则RIS所使用的水平维第二反射角信息或水平维第二透射角信息为c 1*α 1+c 2*α 2+c 3*α 3，其中，c 1,c 2,c 3∈[0,1],c 1+c 2+c 3＝1，c 1,c 2,c 3为对应α 1，α 2，α 3的权值，根据b 1，b 2，b 3确定，其中，权值确定示例：
Figure PCTCN2022126285-appb-000002
相应的，垂直维以相同方式确定，在此不再赘述。相应的，实施例步骤可以包括：基于多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，确定终端的波束权重；根据终端的波束权重，对多个终端的第一反射角信息或第一透射角信息中的角度值进行加权处理，得到第二网络设备的第二反射角信息或第二透射角信息。
作为一种可能的实现方式，可将多个终端对应的第一反射角信息或第一透射角信息中，波束质量最好的方向作为第二网络设备的第二反射角信息或第二透射角信息，即对应加权方式中，将波束质量最好的第一反射角信息或第一透射角信息的权值设置为1，其他方向权值设置为0。其中，波束质量可根据第二网络设备的PMI和PMI对应的波束质量信息中的至少一种来确定。在本公开实施例中，可将多个终端对应的多个水平维第一反射角信息中波束质量最好的水平维第一反射角信息，确定为第二网络设备水平维的第二反射角信息；将多个终端对应的多个垂直维第一反射角信息中波束质量最好的垂直维第一反射角信息，确定为第二网络设备垂直维的第二反射角信息。相应的，实施例步骤还可以包括：基于多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，在多个终端的第一反射角信息或第一透射角信息中确定符合预设条件的第一反射角信息或第一透射角信息，作为第二网络设备的第二反射角 信息或第二透射角信息。其中，预设条件可为波束质量最优，或还可结合实际应用场景设置其他的筛选条件，在此不进行穷举。
步骤703、根据发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息确定第一相移矩阵。
对于本公开实施例，作为一种可能的实现方式，可根据发射信号的入射角信息与第二网络设备的第二反射角信息，计算用于支持进行信号反射处理的第一相移矩阵；作为一种可能的实现方式，可根据发射信号的入射角信息与第二网络设备的第二透射角信息，计算用于支持进行信号透射处理的第一相移矩阵。
步骤704、对第一相移矩阵进行相移量化处理，得到第二网络设备的第二相移矩阵。
在具体的应用场景中，鉴于第一相移矩阵是基于连续相位的入射角信息、第二反射角信息或第二透射角信息计算得到的连续相移矩阵，而RIS的相位仅能在几个离散的相位上，故在计算得到第一相移矩阵后，还需要对第一相移矩阵进行相移量化处理，将第一相移矩阵中每个单元的相移量化到RIS支持的相移上。具体可基于最小距离准则，将第一相移矩阵中每个单元的相移量化到离求出的相移最近的离散相移上，在相移量化完成后，进一步得到第二网络设备的第二相移矩阵。
步骤705、根据第二相移矩阵确定相移矩阵配置。
步骤706、基于相移矩阵配置对第一网络设备的发射信号进行信号处理，其中，信号处理包括信号反射处理或信号透射处理。
对于本公开实施例，若第二相移矩阵为支持进行信号反射处理的相移矩阵，相应的，可基于第二相移矩阵确定的相移矩阵配置对第一网络设备的发射信号进行信号反射处理；若第二相移矩阵为支持进行信号透射处理的相移矩阵，相应的，可基于第二相移矩阵确定的相移矩阵配置对第一网络设备的发射信号进行信号透射处理。
综上，根据本公开实施例提供的预编码方法，第二网络设备(RIS)可在接收到第一网络设备(基站)发送的第一相移矩阵指示信息后，根据第一相移矩阵指示信息生成相移矩阵配置，基于相移矩阵配置对第一网络设备的发射信号进行信号处理。本公开能够通过简单数据处理，使第二网络设备可以直接根据第一相移矩阵指示信息进行相移矩阵配置，对第一网络设备的发射信号进行信号处理，由此能够避免采用复杂算法进行迭代计算，从而能够简化RIS的预编码过程，降低预编码复杂度，提高预编码效率。
图8示出了根据本公开实施例的一种预编码方法，该方法由第二网络设备执行，基于图6所示实施例，如图8所示，且可以包括以下步骤。
步骤801、接收第一网络设备发送的第二相移矩阵指示信息，第二相移矩阵指示信息包括发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息。
在具体的应用场景中，第一网络设备可经过实施例步骤301至304确定第二相移矩阵指示信息，并将第二相移矩阵指示信息发送至第二网络设备。相应的，第二网络设备可接收到发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息。
步骤802、根据发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息确定第一相移矩阵。
步骤803、对第一相移矩阵进行相移量化处理，得到第二网络设备的第二相移矩阵。
步骤804、根据第二相移矩阵确定相移矩阵配置。
步骤805、基于相移矩阵配置对第一网络设备的发射信号进行信号处理，其中，信号处理包括信号反射处理或信号透射处理。
综上，根据本公开实施例提供的预编码方法，第二网络设备(RIS)可在接收到第一网络设备(基站)发送的第二相移矩阵指示信息后，根据第二相移矩阵指示信息生成相移矩阵配置，基于相移矩阵配置对第一网络设备的发射信号进行信号处理。本公开能够通过简单数据处理，使第二网络设备可以直接根据第二相移矩阵指示信息进行相移矩阵配置，对第一网络设备的发射信号进行信号处理，由此能够避免采用复杂算法进行迭代计算，从而能够简化RIS的预编码过程，降低预编码复杂度，提高预编码效率。
图9示出了根据本公开实施例的一种预编码方法，该方法由第二网络设备执行，基于图6所示实施例，如图9所示，且可以包括以下步骤。
步骤901、接收第一网络设备发送的第三相移矩阵指示信息，第三相移矩阵指示信息包括第二相移矩阵。
在具体的应用场景中，第一网络设备可经过实施例步骤401至406确定第三相移矩阵指示信息，并将第三相移矩阵指示信息发送至第二网络设备。相应的，第二网络设备可接收到第二相移矩阵。
步骤902、根据第二相移矩阵确定相移矩阵配置。
步骤903、基于相移矩阵配置对第一网络设备的发射信号进行信号处理，其中，信号处理包括信号反射处理或信号透射处理。
综上，根据本公开实施例提供的预编码方法，第二网络设备(RIS)可在接收到第一网络设备(基站)发送的第三相移矩阵指示信息后，根据第三相移矩阵指示信息生成相移矩阵配置，基于相移矩阵配置对第一网络设备的发射信号进行信号处理。本公开能够通过简单数据处理，使第二网络设备可以直接根据第三相移矩阵指示信息进行相移矩阵配置，对第一网络设备的发射信号进行信号处理，由此能够避免采用复杂算法进行迭代计算，从而能够简化RIS的预编码过程，降低预编码复杂度，提高预编码效率。
图10示出了根据本公开实施例的一种预编码方法，该方法由第二网络设备执行，基于图6所示实施例，如图10所示，且可以包括以下步骤。
步骤1001、接收第一网络设备发送的第四相移矩阵指示信息，第四相移矩阵指示信息包括相移矩阵PMI。
在具体的应用场景中，第一网络设备可经过实施例步骤501至506确定第四相移矩阵指示信息，并将第四相移矩阵指示信息发送至第二网络设备。相应的，第二网络设备可接收到相移矩阵PMI。
步骤1002、根据相移矩阵PMI确定第一相移矩阵。
步骤1003、对第一相移矩阵进行相移量化处理，得到第二网络设备的第二相移矩阵。
在具体的应用场景中，鉴于第一相移矩阵是基于连续相位的入射角信息、第二反射角信息或第二透射角信息计算得到的连续相移矩阵，而RIS的相位仅能在几个离散的相位上，故在计算得到第一相移矩阵后，还需要对第一相移矩阵进行相移量化处理，将第一相移矩阵中每个单元的相移量化到RIS支持的相移上。具体可基于最小距离准则，将第一相移矩阵中每个单元的相移量化到离求出的相移最近的离散 相移上，在相移量化完成后，进一步得到第二网络设备的第二相移矩阵。
步骤1004、根据第二相移矩阵确定相移矩阵配置。
步骤1005、基于相移矩阵配置对第一网络设备的发射信号进行信号处理，其中，信号处理包括信号反射处理或信号透射处理。
综上，根据本公开实施例提供的预编码方法，第二网络设备(RIS)可在接收到第一网络设备(基站)发送的第四相移矩阵指示信息后，根据第四相移矩阵指示信息生成相移矩阵配置，基于相移矩阵配置对第一网络设备的发射信号进行信号处理。本公开能够使第二网络设备可以直接根据第四相移矩阵指示信息进行相移矩阵配置，对第一网络设备的发射信号进行信号处理，由此能够避免采用复杂算法进行迭代计算，从而能够简化RIS的预编码过程，降低预编码复杂度，提高预编码效率。
图11根据本公开实施例的一种预编码方法的流程示意图。该方法由终端执行，且该方法可以包括以下步骤。
步骤1101、向第一网络设备上报针对第二网络设备的PMI和PMI对应的波束质量信息。
对于本公开实施例，终端可向第一网络设备上报针对第二网络设备的PMI和PMI对应的波束质量信息，以使第一网络设备基于终端上报的信息，确定第二网络设备的相移矩阵指示信息，并将相移矩阵指示信息发送至第二网络设备后，使第二网络设备能够根据相移矩阵指示信息对第一网络设备的发射信号进行信号处理。
综上，根据本公开实施例提供的预编码方法，终端通过向第一网络设备上报针对第二网络设备的PMI和PMI对应的波束质量信息，利用第一网络设备确定第二网络设备的相移矩阵指示信息，将相移矩阵指示信息发送至第二网络设备(RIS)，以使第二网络设备能够根据相移矩阵指示信息对第一网络设备的发射信号进行信号处理。本公开能够通过简单数据处理，在第一网络设备中确定包含有预编码信息的相移矩阵指示信息，使第二网络设备可以直接根据相移矩阵指示信息进行相移矩阵配置，对第一网络设备的发射信号进行信号处理，因此本公开能够避免采用复杂算法进行迭代计算，从而能够简化RIS的预编码过程，降低预编码复杂度，提高预编码效率。
与上述几种实施例提供的预编码方法相对应，本公开的完整实现过程可为：
(1)一个或多个终端向第一网络设备上报针对第二网络设备的预编码矩阵标识PMI和PMI对应的波束质量信息。
其中，PMI对应的波束质量信息用于反映波束传输的质量，在具体的应用场景中，可使用参考信号接收功率(Reference Signal Receiving Power，RSRP)、信号与干扰加噪声比(Signal to Interference plus Noise Ratio，SINR)、参考信号接收质量(Reference Singnal Received Quality,RSRQ)、接收信号的强度指示(Received Signal Strength Indicator，RSSI)等来对其进行衡量。示例性的，作为一种可能的实现方式，可将上述信息中的一种作为PMI对应的波束质量信息；作为一种可能的实现方式，还可将上述信息中的多种通过预设算法进行信息融合(如加权融合等)，得到PMI对应的波束质量信息。
(2)、根据一个或多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息确定各个终端对应的第一反射角信息或第一透射角信息。
(3)、根据多个终端的第一反射角信息或第一透射角信息，以及多个终端上报的针对第二网络设 备的PMI和PMI对应的波束质量信息，确定第二网络设备的第二反射角信息或第二透射角信息。
对于本公开实施例，可参见实施例步骤302或702中的相关描述，在此不再赘述。
(4)、根据发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息确定第一相移矩阵。
(5)、将第一相移矩阵中每个单元的相移量化到RIS支持的相移上，得到第二相移矩阵。
(6)、第一网络设备将相移矩阵指示信息发送至第二网络设备。
其中，相移矩阵指示信息可包括第一相移矩阵指示信息、第二相移矩阵指示信息、第三相移矩阵指示信息以及第四相移矩阵指示信息中的任意一项，第一相移矩阵指示信息可包括：发射信号的入射角信息、以及多个终端上报的针对第二网络设备的预编码矩阵标识(Precoding Matrix Indicator，PMI)和PMI对应的波束质量信息；第二相移矩阵指示信息可包括：发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息；第三相移矩阵指示信息可包括：第二网络设备的相移矩阵；第四相移矩阵指示信息可包括相移矩阵PMI。
对于本公开实施例，作为一种可能的实现方式，第一网络设备确定第一相移矩阵指示信息，并将第一相移矩阵指示信息发送至第二网络设备时(可参见实施例步骤201至204)，对应的上述步骤(2)至(5)可在第二网络设备上执行(可参见实施例步骤701至706)。
作为一种可能的实现方式，第一网络设备确定第二相移矩阵指示信息，并将第二相移矩阵指示信息发送至第二网络设备时(可参见实施例步骤301至304)，对应的上述步骤(4)至(5)可在第二网络设备上执行(可参见实施例步骤801至805)。
作为一种可能的实现方式，第一网络设备确定第三相移矩阵指示信息，并将第三相移矩阵指示信息发送至第二网络设备时(可参见实施例步骤401至406)，第二网络设备可直接接收到第二相移矩阵，进而可继续执行步骤(7)(可参见实施例步骤902至903)。
作为一种可能的实现方式，第一网络设备确定第四相移矩阵指示信息，并将第四相移矩阵指示信息发送至第二网络设备时(可参见实施例步骤501至506)，第二网络设备可在执行实施例步骤1002至1003，得到第二网络设备的第二相移矩阵后，进一步执行步骤实施例步骤1004至1005，根据第二相移矩阵确定相移矩阵配置；基于相移矩阵配置对第一网络设备的发射信号进行信号处理，其中，信号处理包括信号反射处理或信号透射处理。
(7)、第二网络设备依据接收到的相移矩阵指示信息对第一网络设备的发射信号进行信号处理。
综上，根据本公开实施例提供的预编码方法，能够通过简单数据处理，在第一网络设备或第二网络设备中确定包含有预编码信息的相移矩阵指示信息，可避免采用复杂算法进行迭代计算，从而能够简化RIS的预编码过程，降低预编码复杂度，提高预编码效率。
上述本申请提供的实施例中，分别从第一网络设备(基站)、第二网络设备(RIS)以及终端的角度对本申请实施例提供的方法进行了介绍。为了实现上述本申请实施例提供的方法中的各功能，第一网络设备(基站)、第二网络设备(RIS)以及终端可以包括硬件结构、软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能可以以硬件结构、软件模块、或者硬件结构加软件模块的方式来执行。
与上述几种实施例提供的预编码方法相对应，本公开还提供一种第一网络设备、一种第二网络设备 以及一种终端，由于本公开实施例提供的第一网络设备、第二网络设备以及终端与上述几种实施例提供的预编码方法相对应，因此预编码方法的实施方式也适用于本实施例提供的侧行链路的功率确定装置，在本实施例中不再详细描述。
图12为根据本公开实施例提供的一种第一网络设备1200的结构示意图。
如图12所示，该第一网络设备1200可包括：
处理模块1210，可用于确定第二网络设备的相移矩阵指示信息；
发送模块1220，可用于将相移矩阵指示信息发送至第二网络设备。
在本公开的一些实施例中，相移矩阵指示信息为第一相移矩阵指示信息，第一相移矩阵指示信息包括发射信号的入射角信息、以及多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，处理模块1210，可用于确定发射信号的入射角信息；确定发射信号的入射角信息，以及多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，为第一相移矩阵指示信息。
在本公开的一些实施例中，相移矩阵指示信息为第二相移矩阵指示信息，第二相移矩阵指示信息包括发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息，处理模块1210，可用于确定发射信号的入射角信息；以及根据多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，确定第二网络设备的第二反射角信息或第二透射角信息；确定发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息为第二相移矩阵指示信息。
在本公开的一些实施例中，相移矩阵指示信息为第三相移矩阵指示信息，第三相移矩阵指示信息包括第二相移矩阵，处理模块1210，可用于根据多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，确定第二网络设备的第二反射角信息或第二透射角信息；根据发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息确定第一相移矩阵；对第一相移矩阵进行相移量化处理，得到第二网络设备的第二相移矩阵；确定第二相移矩阵为第三相移矩阵指示信息。
在本公开的一些实施例中，相移矩阵指示信息为第四相移矩阵指示信息，第四相移矩阵指示信息包括相移矩阵PMI，处理模块1210，可用于根据多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，确定第二网络设备的第二反射角信息或第二透射角信息；根据发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息确定第一相移矩阵；确定第一相移矩阵对应的相移矩阵PMI；确定相移矩阵PMI为第四相移矩阵指示信息。
在本公开的一些实施例中，如图12所示，第一网络设备1200还包括：接收模块1220；
接收模块1220，可用于接收多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息。
在本公开的一些实施例中，处理模块1210，可用于根据多个终端上报的针对第二网络设备的PMI，确定多个终端的第一反射角信息或第一透射角信息；根据多个终端的第一反射角信息或第一透射角信息，以及多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，确定第二网络设备的第二反射角信息或第二透射角信息。
在本公开的一些实施例中，处理模块1210，可用于基于多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，确定终端的波束权重；根据终端的波束权重，对多个终端的第一反射角信息或第一透射角信息中的角度值进行加权处理，得到第二网络设备的第二反射角信息或第二透射角信息。
在本公开的一些实施例中，处理模块1210，可用于基于多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，在多个终端的第一反射角信息或第一透射角信息中确定符合预设条件的第一反射角信息或第一透射角信息，作为第二网络设备的第二反射角信息或第二透射角信息。
在本公开的一些实施例中，发送模块1220，可用于将第一相移矩阵指示信息、第二相移矩阵指示信息、第三相移矩阵指示信息以及第四相移矩阵指示信息中的任意一项发送至第二网络设备。
图13为根据本公开实施例提供的一种第二网络设备1300的结构示意图。
如图13所示，该第二网络设备1300可包括：
接收模块1310，可用于接收第一网络设备发送的相移矩阵指示信息；
处理模块1320，可用于根据相移矩阵指示信息对第一网络设备的发射信号进行信号处理。
在本公开的一些实施例中，相移矩阵指示信息为第一相移矩阵指示信息，第一相移矩阵指示信息包括发射信号的入射角信息、以及多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，接收模块1310，可用于接收第一网络设备发送的发射信号的入射角信息、以及多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息。
在本公开的一些实施例中，处理模块1320，可用于根据多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，确定第二网络设备的第二反射角信息或第二透射角信息；根据发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息确定第一相移矩阵；对第一相移矩阵进行相移量化处理，得到第二网络设备的第二相移矩阵；根据第二相移矩阵确定相移矩阵配置；基于相移矩阵配置对第一网络设备的发射信号进行信号处理，其中，信号处理包括信号反射处理或信号透射处理。
在本公开的一些实施例中，处理模块1320，可用于根据多个终端上报的针对第二网络设备的PMI，确定多个终端的第一反射角信息或第一透射角信息；根据多个终端的第一反射角信息或第一透射角信息，以及多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，确定第二网络设备的第二反射角信息或第二透射角信息。
在本公开的一些实施例中，处理模块1320，可用于基于多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，确定终端的波束权重；根据终端的波束权重，对多个终端的第一反射角信息或第一透射角信息中的角度值进行加权处理，得到第二网络设备的第二反射角信息或第二透射角信息。
在本公开的一些实施例中，处理模块1320，可用于基于多个终端上报的针对第二网络设备的PMI和PMI对应的波束质量信息，在多个终端的第一反射角信息或第一透射角信息中确定符合预设条件的第一反射角信息或第一透射角信息，作为第二网络设备的第二反射角信息或第二透射角信息。
在本公开的一些实施例中，相移矩阵指示信息为第二相移矩阵指示信息，第二相移矩阵指示信息包括发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息，接收模块1310，可用于接收第一网络设备发送的发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息。
在本公开的一些实施例中，处理模块1320，可用于根据发射信号的入射角信息、第二网络设备的第二反射角信息或第二透射角信息确定第一相移矩阵；对第一相移矩阵进行相移量化处理，得到第二网络设备的第二相移矩阵；根据第二相移矩阵确定相移矩阵配置；基于相移矩阵配置对第一网络设备的发射信号进行信号处理，其中，信号处理包括信号反射处理或信号透射处理。
在本公开的一些实施例中，相移矩阵指示信息为第三相移矩阵指示信息，第三相移矩阵指示信息包括第二相移矩阵，接收模块1310，可用于接收第一网络设备发送的第二相移矩阵。
在本公开的一些实施例中，处理模块1320，可用于根据第二相移矩阵确定相移矩阵配置；基于相移矩阵配置对第一网络设备的发射信号进行信号处理，其中，信号处理包括信号反射处理或信号透射处 理。
在本公开的一些实施例中，相移矩阵指示信息为第四相移矩阵指示信息，第四相移矩阵指示信息包括相移矩阵PMI，接收模块1310，可用于接收第一网络设备发送的相移矩阵PMI。
在本公开的一些实施例中，处理模块1320，可用于根据相移矩阵PMI确定第一相移矩阵；对第一相移矩阵进行相移量化处理，得到第二网络设备的第二相移矩阵；根据第二相移矩阵确定相移矩阵配置；基于相移矩阵配置对第一网络设备的发射信号进行信号处理，其中，信号处理包括信号反射处理或信号透射处理。
图14为根据本公开实施例提供的一种终端1400的结构示意图。
如图14所示，该终端1400可包括：
发送模块1410，可用于向第一网络设备上报针对第二网络设备的PMI和PMI对应的波束质量信息。
请参见图15，图15是本申请实施例提供的一种通信装置1500的结构示意图。通信装置1500可以是网络设备，也可以是用户设备，也可以是支持网络设备实现上述方法的芯片、芯片系统、或处理器等，还可以是支持用户设备实现上述方法的芯片、芯片系统、或处理器等。该装置可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。
通信装置1500可以包括一个或多个处理器1501。处理器1501可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、基带芯片，终端设备、终端设备芯片，DU或CU等)进行控制，执行计算机程序，处理计算机程序的数据。
可选的，通信装置1500中还可以包括一个或多个存储器1502，其上可以存有计算机程序1504，处理器1501执行计算机程序1504，以使得通信装置1500执行上述方法实施例中描述的方法。可选的，存储器1502中还可以存储有数据。通信装置1500和存储器1502可以单独设置，也可以集成在一起。
可选的，通信装置1500还可以包括收发器1505、天线1506。收发器1505可以称为收发单元、收发机、或收发电路等，用于实现收发功能。收发器1505可以包括接收器和发送器，接收器可以称为接收机或接收电路等，用于实现接收功能；发送器可以称为发送机或发送电路等，用于实现发送功能。
可选的，通信装置1500中还可以包括一个或多个接口电路1507。接口电路1507用于接收代码指令并传输至处理器1501。处理器1501运行代码指令以使通信装置1500执行上述方法实施例中描述的方法。
在一种实现方式中，处理器1501中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路，或者是接口，或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的，也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写，或者，上述收发电路、接口或接口电路可以用于信号的传输或传递。
在一种实现方式中，处理器1501可以存有计算机程序1503，计算机程序1503在处理器1501上运行，可使得通信装置1500执行上述方法实施例中描述的方法。计算机程序1503可能固化在处理器1501中，该种情况下，处理器1501可能由硬件实现。
在一种实现方式中，通信装置1500可以包括电路，该电路可以实现前述方法实施例中发送或接收 或者通信的功能。本申请中描述的处理器和收发器可实现在集成电路(integrated circuit，IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit board，PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造，例如互补金属氧化物半导体(complementary metal oxide semiconductor，CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor，NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor，PMOS)、双极结型晶体管(bipolar junction transistor，BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的通信装置可以是网络设备或者用户设备，但本申请中描述的通信装置的范围并不限于此，而且通信装置的结构可以不受图15的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如该通信装置可以是：
(1)独立的集成电路IC，或芯片，或，芯片系统或子系统；
(2)具有一个或多个IC的集合，可选的，该IC集合也可以包括用于存储数据，计算机程序的存储部件；
(3)ASIC，例如调制解调器(Modem)；
(4)可嵌入在其他设备内的模块；
(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等；
(6)其他等等。
对于通信装置可以是芯片或芯片系统的情况，可参见图16所示的芯片的结构示意图。图16所示的芯片包括处理器1601和接口1602。其中，处理器1601的数量可以是一个或多个，接口1602的数量可以是多个。
可选的，芯片还包括存储器1603，存储器1603用于存储必要的计算机程序和数据。
本领域技术人员还可以了解到本申请实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现的功能，但这种实现不应被理解为超出本申请实施例保护的范围。
本申请还提供一种可读存储介质，其上存储有指令，该指令被计算机执行时实现上述任一方法实施例的功能。
本申请还提供一种计算机程序产品，该计算机程序产品被计算机执行时实现上述任一方法实施例的功能。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。计算机程序产品包括一个或多个计算机程序。在计算机上加载和执行计算机程序时，全部或部分地产生按照本申请实施例的流程或功能。计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。计算机程序可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，计算机程序可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital  subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
本领域普通技术人员可以理解：本申请中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围，也表示先后顺序。
本申请中的至少一个还可以描述为一个或多个，多个可以是两个、三个、四个或者更多个，本申请不做限制。在本申请实施例中，对于一种技术特征，通过“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”等区分该种技术特征中的技术特征，该“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”描述的技术特征间无先后顺序或者大小顺序。
如本文使用的，术语“机器可读介质”和“计算机可读介质”指的是用于将机器指令和/或数据提供给可编程处理器的任何计算机程序产品、设备、和/或装置(例如，磁盘、光盘、存储器、可编程逻辑装置(PLD))，包括，接收作为机器可读信号的机器指令的机器可读介质。术语“机器可读信号”指的是用于将机器指令和/或数据提供给可编程处理器的任何信号。
可以将此处描述的系统和技术实施在包括后台部件的计算系统(例如，作为数据服务器)、或者包括中间件部件的计算系统(例如，应用服务器)、或者包括前端部件的计算系统(例如，具有图形用户界面或者网络浏览器的用户计算机，用户可以通过该图形用户界面或者该网络浏览器来与此处描述的系统和技术的实施方式交互)、或者包括这种后台部件、中间件部件、或者前端部件的任何组合的计算系统中。可以通过任何形式或者介质的数字数据通信(例如，通信网络)来将系统的部件相互连接。通信网络的示例包括：局域网(LAN)、广域网(WAN)和互联网。
计算机系统可以包括客户端和服务器。客户端和服务器一般远离彼此并且通常通过通信网络进行交互。通过在相应的计算机上运行并且彼此具有客户端-服务器关系的计算机程序来产生客户端和服务器的关系。
应该理解，可以使用上面所示的各种形式的流程，重新排序、增加或删除步骤。例如，本公开中记载的各步骤可以并行地执行也可以顺序地执行也可以不同的次序执行，只要能够实现本公开公开的技术方案所期望的结果，本文在此不进行限制。
此外，应该理解，本申请的各种实施例可以单独实施，也可以在方案允许的情况下与其他实施例组合实施。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
以上，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (29)

  1. 一种预编码方法，其特征在于，所述方法由第一网络设备执行，所述方法包括：
    确定第二网络设备的相移矩阵指示信息；
    将所述相移矩阵指示信息发送至所述第二网络设备。
  2. 根据权利要求1所述的方法，其特征在于，所述相移矩阵指示信息为第一相移矩阵指示信息，所述第一相移矩阵指示信息包括发射信号的入射角信息、以及多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，所述确定第二网络设备的相移矩阵指示信息，包括：
    确定发射信号的入射角信息；
    确定所述发射信号的入射角信息，以及多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，为所述第一相移矩阵指示信息。
  3. 根据权利要求1所述的方法，其特征在于，所述相移矩阵指示信息为第二相移矩阵指示信息，所述第二相移矩阵指示信息包括发射信号的入射角信息、所述第二网络设备的第二反射角信息或第二透射角信息，所述确定第二网络设备的相移矩阵指示信息，包括：
    确定发射信号的入射角信息；以及
    根据多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息；
    确定所述发射信号的入射角信息、所述第二网络设备的第二反射角信息或第二透射角信息为所述第二相移矩阵指示信息。
  4. 根据权利要求1所述的方法，其特征在于，所述相移矩阵指示信息为第三相移矩阵指示信息，所述第三相移矩阵指示信息包括第二相移矩阵，所述确定第二网络设备的相移矩阵指示信息，包括：
    根据多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息；
    根据发射信号的入射角信息、所述第二网络设备的第二反射角信息或第二透射角信息确定第一相移矩阵；
    对所述第一相移矩阵进行相移量化处理，得到第二网络设备的第二相移矩阵；
    确定所述第二相移矩阵为所述第三相移矩阵指示信息。
  5. 根据权利要求1所述的方法，其特征在于，所述相移矩阵指示信息为第四相移矩阵指示信息，所述第四相移矩阵指示信息包括相移矩阵PMI，所述确定第二网络设备的相移矩阵指示信息，包括：
    根据多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息；
    根据发射信号的入射角信息、所述第二网络设备的第二反射角信息或第二透射角信息确定第一相移矩阵；
    确定所述第一相移矩阵对应的相移矩阵PMI；
    确定所述相移矩阵PMI为所述第四相移矩阵指示信息。
  6. 根据权利要求2至5中任一项所述的方法，其特征在于，所述方法还包括：
    接收多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息。
  7. 根据权利要求3至5中任一项所述的方法，其特征在于，所述根据多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息，包括：
    根据多个终端上报的针对第二网络设备的PMI，确定所述多个终端的第一反射角信息或第一透射角信息；
    根据所述多个终端的第一反射角信息或第一透射角信息，以及所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息。
  8. 根据权利要求7所述的方法，其特征在于，所述根据所述多个终端的第一反射角信息或第一透射角信息，以及所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息，包括：
    基于所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定终端的波束权重；
    根据所述终端的波束权重，对所述多个终端的第一反射角信息或第一透射角信息中的角度值进行加权处理，得到所述第二网络设备的第二反射角信息或第二透射角信息。
  9. 根据权利要求7所述的方法，其特征在于，所述根据所述多个终端的第一反射角信息或第一透射角信息，以及所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息，包括：
    基于所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，在所述多个终端的第一反射角信息或第一透射角信息中确定符合预设条件的第一反射角信息或第一透射角信息，作为所述第二网络设备的第二反射角信息或第二透射角信息。
  10. 根据权利要求2至9中任一项所述的方法，其特征在于，所述将所述相移矩阵指示信息发送至所述第二网络设备，包括：
    将所述第一相移矩阵指示信息、所述第二相移矩阵指示信息、所述第三相移矩阵指示信息以及所述第四相移矩阵指示信息中的任意一项发送至所述第二网络设备。
  11. 一种预编码方法，其特征在于，所述方法由第二网络设备执行，所述方法包括：
    接收第一网络设备发送的相移矩阵指示信息；
    根据所述相移矩阵指示信息对所述第一网络设备的发射信号进行信号处理。
  12. 根据权利要求11所述的方法，其特征在于，所述相移矩阵指示信息为第一相移矩阵指示信息，所述第一相移矩阵指示信息包括发射信号的入射角信息、以及多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，所述接收第一网络设备发送的相移矩阵指示信息，包括：
    接收第一网络设备发送的发射信号的入射角信息、以及多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息。
  13. 根据权利要求12所述的方法，其特征在于，所述根据所述相移矩阵指示信息进行信号处理，包括：
    根据所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息；
    根据所述发射信号的入射角信息、所述第二网络设备的第二反射角信息或第二透射角信息确定第一相移矩阵；
    对所述第一相移矩阵进行相移量化处理，得到第二网络设备的第二相移矩阵；
    根据所述第二相移矩阵确定相移矩阵配置；
    基于所述相移矩阵配置对所述第一网络设备的发射信号进行信号处理，其中，所述信号处理包括信号反射处理或信号透射处理。
  14. 根据权利要求13所述的方法，其特征在于，所述根据所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息，包括：
    根据所述多个终端上报的针对第二网络设备的PMI，确定所述多个终端的第一反射角信息或第一透射角信息；
    根据所述多个终端的第一反射角信息或第一透射角信息，以及所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息。
  15. 根据权利要求14所述的方法，其特征在于，所述根据所述多个终端的第一反射角信息或第一透射角信息，以及所述多个终端上报的针对第二网络设备的PMI和所述波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息，包括：
    基于所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定终端的波束权重；
    根据所述终端的波束权重，对所述多个终端的第一反射角信息或第一透射角信息中的角度值进行加权处理，得到所述第二网络设备的第二反射角信息或第二透射角信息。
  16. 根据权利要求14所述的方法，其特征在于，所述根据所述多个终端的第一反射角信息或第一透射角信息，以及所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，确定所述第二网络设备的第二反射角信息或第二透射角信息，包括：
    基于所述多个终端上报的针对第二网络设备的PMI和所述PMI对应的波束质量信息，在所述多个终端的第一反射角信息或第一透射角信息中确定符合预设条件的第一反射角信息或第一透射角信息，作为所述第二网络设备的第二反射角信息或第二透射角信息。
  17. 根据权利要求11所述的方法，其特征在于，所述相移矩阵指示信息为第二相移矩阵指示信息，所述第二相移矩阵指示信息包括发射信号的入射角信息、所述第二网络设备的第二反射角信息或第二透射角信息，所述接收第一网络设备发送的相移矩阵指示信息，包括：
    接收第一网络设备发送的发射信号的入射角信息、所述第二网络设备的第二反射角信息或第二透射角信息。
  18. 根据权利要求17所述的方法，其特征在于，所述根据所述相移矩阵指示信息进行信号处理， 包括：
    根据所述发射信号的入射角信息、所述第二网络设备的第二反射角信息或第二透射角信息确定第一相移矩阵；
    对所述第一相移矩阵进行相移量化处理，得到第二网络设备的第二相移矩阵；
    根据所述第二相移矩阵确定相移矩阵配置；
    基于所述相移矩阵配置对所述第一网络设备的发射信号进行信号处理，其中，所述信号处理包括信号反射处理或信号透射处理。
  19. 根据权利要求11所述的方法，其特征在于，所述相移矩阵指示信息为第三相移矩阵指示信息，所述第三相移矩阵指示信息包括第二相移矩阵，所述接收第一网络设备发送的相移矩阵指示信息，包括：
    接收第一网络设备发送的第二相移矩阵。
  20. 根据权利要求19所述的方法，其特征在于，所述根据所述相移矩阵指示信息进行信号处理，包括：
    根据所述第二相移矩阵确定相移矩阵配置；
    基于所述相移矩阵配置对所述第一网络设备的发射信号进行信号处理，其中，所述信号处理包括信号反射处理或信号透射处理。
  21. 根据权利要求11所述的方法，其特征在于，所述相移矩阵指示信息为第四相移矩阵指示信息，所述第四相移矩阵指示信息包括相移矩阵PMI，所述接收第一网络设备发送的相移矩阵指示信息，包括：
    接收第一网络设备发送的相移矩阵PMI。
  22. 根据权利要求21所述的方法，其特征在于，所述根据所述相移矩阵指示信息进行信号处理，包括：
    根据所述相移矩阵PMI确定第一相移矩阵；
    对所述第一相移矩阵进行相移量化处理，得到第二网络设备的第二相移矩阵；
    根据所述第二相移矩阵确定相移矩阵配置；
    基于所述相移矩阵配置对所述第一网络设备的发射信号进行信号处理，其中，所述信号处理包括信号反射处理或信号透射处理。
  23. 一种预编码方法，其特征在于，所述方法由终端执行，所述方法包括：
    向第一网络设备上报针对第二网络设备的PMI和所述PMI对应的波束质量信息。
  24. 一种第一网络设备，其特征在于，包括：
    处理模块，用于确定第二网络设备的相移矩阵指示信息；
    发送模块，用于将所述相移矩阵指示信息发送至所述第二网络设备。
  25. 一种第二网络设备，其特征在于，包括：
    接收模块，用于接收第一网络设备发送的相移矩阵指示信息；
    处理模块，用于根据所述相移矩阵指示信息对所述第一网络设备的发射信号进行信号处理。
  26. 一种终端，其特征在于，包括：
    发送模块，用于向第一网络设备上报针对第二网络设备的PMI和所述PMI对应的波束质量信息。
  27. 一种通信设备，其中，包括：收发器；存储器；处理器，分别与所述收发器及所述存储器连接，配置为通过执行所述存储器上的计算机可执行指令，控制所述收发器的无线信号收发，并能够实现权利要求1-23中任一项所述的方法。
  28. 一种计算机存储介质，其中，所述计算机存储介质存储有计算机可执行指令；所述计算机可执行指令被处理器执行后，能够实现权利要求1-23中任一项所述的方法。
  29. 一种通信系统，包括第一网络设备、第二网络设备以及终端，其中，
    所述第一网络设备用于执行如权利要求1-10中任一项所述的方法；
    所述第二网络设备用于执行如权利要求11-22中任一项所述的方法；
    所述终端用于执行如权利要求23所述的方法。
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