WO2023070407A1 - 一种预编码方法、装置、用户设备、可重构智能表面ris阵列及存储介质 - Google Patents

一种预编码方法、装置、用户设备、可重构智能表面ris阵列及存储介质 Download PDF

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Publication number
WO2023070407A1
WO2023070407A1 PCT/CN2021/126840 CN2021126840W WO2023070407A1 WO 2023070407 A1 WO2023070407 A1 WO 2023070407A1 CN 2021126840 W CN2021126840 W CN 2021126840W WO 2023070407 A1 WO2023070407 A1 WO 2023070407A1
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Prior art keywords
phase angle
offset phase
ris
array
row
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PCT/CN2021/126840
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English (en)
French (fr)
Inventor
池连刚
杨立
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北京小米移动软件有限公司
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Priority to PCT/CN2021/126840 priority Critical patent/WO2023070407A1/zh
Publication of WO2023070407A1 publication Critical patent/WO2023070407A1/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
    • 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 communication technology, and in particular to a precoding method, device, user equipment, reconfigurable smart surface RIS array and storage medium.
  • RIS Reconfigurable Intelligent Surface, reconfigurable intelligent surface
  • the incident signal transmitted by the base station to RIS is reflected to UE (User Equipment, terminal equipment) in a specific direction, so as to build intelligent and Program the wireless environment, enhance the signal strength of the signal received by the UE, and realize the control of the channel.
  • UE User Equipment, terminal equipment
  • the joint design of the RIS and the precoding at the base station is mainly performed through alternate optimization technology.
  • the precoding method based on alternate optimization technology is too complex and poor in applicability.
  • the disclosure proposes a precoding method, device, user equipment, reconfigurable smart surface RIS array, and storage medium to solve the technical problems of high complexity and poor applicability of the precoding method in the related art.
  • the precoding method proposed in an embodiment of the present disclosure is applied to a RIS array, including:
  • the offset phase angle list includes at least one row of offset phase angle sequence
  • the offset phase angle sequence includes the offset of each RIS array element in the RIS array phase angle
  • each row offset phase angle sequence is used to cause the RIS array to reflect an incident signal along a pair of reflection angles
  • the pair of reflection angles includes a horizontal dimension reflection angle and a vertical dimension reflection angle
  • each row offset The phase shift angle sequence corresponds to an index value
  • the precoding method proposed in another embodiment of the present disclosure is applied to the UE, including:
  • the offset phase angle list includes at least one row of offset phase angle sequence
  • the offset phase angle sequence includes the offset of each RIS array element in the RIS array phase angle
  • each row offset phase angle sequence is used to cause the RIS array to reflect an incident signal along a pair of reflection angles
  • the pair of reflection angles includes a horizontal dimension reflection angle and a vertical dimension reflection angle
  • each row offset The phase shift angle sequence corresponds to an index value
  • the first determination module is configured to determine the offset phase angle list corresponding to the RIS array, the offset phase angle list includes at least one row of offset phase angle sequences, and the offset phase angle sequence includes each The offset phase angle of each RIS array element, wherein each row of offset phase angle sequence is used to make the RIS array reflect the incident signal along a pair of reflection angles, the pair of reflection angles includes the horizontal dimension reflection angle and the vertical dimension reflection angle angle, and each row of offset phase angle sequence corresponds to an index value;
  • An acquisition module configured to acquire the first index value sent by the UE
  • a second determining module configured to determine a first offset phase angle sequence corresponding to the first index value in the offset phase angle list
  • a configuring module configured to configure an offset phase angle of each RIS array element in the RIS array based on the first offset phase angle sequence, so as to precode the RIS array.
  • the first determination module is configured to determine the offset phase angle list corresponding to the RIS array, the offset phase angle list includes at least one row of offset phase angle sequences, and the offset phase angle sequence includes each The offset phase angle of each RIS array element, wherein each row of offset phase angle sequence is used to make the RIS array reflect the incident signal along a pair of reflection angles, the pair of reflection angles includes the horizontal dimension reflection angle and the vertical dimension reflection angle angle, and each row of offset phase angle sequence corresponds to an index value;
  • the second determination module is used to determine the optimal offset phase angle sequence
  • a sending module configured to send the first index value corresponding to the optimal offset phase angle sequence to the RIS array.
  • an embodiment provides a communication device, the device includes a processor and a memory, a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the The device executes the method provided in the embodiment of the foregoing aspect.
  • an embodiment provides a communication device, the device includes a processor and a memory, a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the The device executes the method provided in the above embodiment of another aspect.
  • a communication device provided by an embodiment of another aspect of the present disclosure includes: a processor and an interface circuit;
  • the interface circuit is used to receive code instructions and transmit them to the processor
  • the processor is configured to run the code instructions to execute the method provided in one embodiment.
  • a communication device provided by an embodiment of another aspect of the present disclosure includes: a processor and an interface circuit;
  • the interface circuit is used to receive code instructions and transmit them to the processor
  • the processor is configured to run the code instructions to execute the method provided in another embodiment.
  • the computer-readable storage medium provided by another embodiment of the present disclosure is used to store instructions, and when the instructions are executed, the method provided by the first embodiment is implemented.
  • the computer-readable storage medium provided by another embodiment of the present disclosure is used to store instructions, and when the instructions are executed, the method provided by another embodiment is implemented.
  • the offset phase angle list corresponding to the RIS array will be determined first, wherein, The offset phase angle list includes at least one row of offset phase angle sequences, the offset phase angle sequence includes the offset phase angle of each RIS element in the RIS array, and each row of offset phase angle sequences is used to make the RIS array along a pair of The reflection angle reflects the incident signal, and each line of offset phase angle sequence corresponds to an index value.
  • the RIS array will obtain the first index value sent by the UE, and will determine the first offset phase angle sequence corresponding to the first index value, and will configure each of the RIS arrays based on the first offset phase angle sequence
  • the offset phase angle of each RIS array element to precode the RIS array. It can be seen that, in the embodiment of the present disclosure, the offset phase angle list is determined in advance, and the RIS array is precoded based on the offset phase angle list, which has low complexity and high applicability.
  • FIG. 1 is a schematic flowchart of a precoding method provided by an embodiment of the present disclosure
  • FIG. 2 is a schematic flowchart of a precoding method provided by another embodiment of the present disclosure.
  • FIG. 3 is a schematic flowchart of a precoding method provided by another embodiment of the present disclosure.
  • FIG. 4 is a schematic flowchart of a precoding method provided by another embodiment of the present disclosure.
  • FIG. 5 is a schematic flowchart of a precoding method provided by another embodiment of the present disclosure.
  • FIG. 6 is a schematic flowchart of a precoding method provided by another embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a precoding device provided by another embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a precoding device provided by another embodiment of the present disclosure.
  • Fig. 9 is a block diagram of a user equipment provided by an embodiment of the present disclosure.
  • Fig. 10 is a block diagram of a network side device provided by an embodiment of the present disclosure.
  • first, second, third, etc. may use the terms first, second, third, etc. to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the embodiments of the present disclosure, first information may also be called second information, and similarly, second information may also be called first information.
  • first information may also be called second information
  • second information may also be called first information.
  • the words "if” and "if” as used herein may be interpreted as “at” or "when” or "in response to a determination.”
  • FIG. 1 is a schematic flow chart of a precoding method provided by an embodiment of the present disclosure. The method is executed by an RIS array. As shown in FIG. 1 , the precoding method may include the following steps:
  • Step 101 Determine a list of offset phase angles corresponding to the RIS array.
  • the offset phase angle list may include at least one row of offset phase angle sequences, wherein the offset phase angle sequence may include the offset phase angles of each RIS element in the RIS array, And, each row offset phase angle sequence is used to make the RIS array reflect the incident signal along a pair of reflection angles, wherein the pair of reflection angles includes the horizontal dimension reflection angle and the vertical dimension reflection angle, and the incident signal can be the incident signal transmitted by the base station to the RIS signals, and different row offset phase angle sequences are used to make the RIS array reflect incident signals along different reflection angles, and each row offset phase angle sequence corresponds to an index value.
  • the above offset phase angle list may be established by the RIS array.
  • the offset phase angle list may be established by the base station and sent to the RIS array.
  • the method for establishing the offset phase angle list may include the following steps:
  • Step a quantifying the horizontal dimension reflection angle and the vertical dimension reflection angle corresponding to the RIS array to obtain at least one pair of reflection angles.
  • the method of quantifying the horizontal dimension reflection angle and the vertical dimension reflection angle corresponding to the RIS array to obtain at least one pair of reflection angles may include:
  • the quantized horizontal-dimensional reflection angles and the quantized vertical-dimensional reflection angles may be combined in pairs to obtain at least one pair of reflection angles.
  • the horizontal dimension reflection angle corresponding to the RIS array is 0°-180°
  • the vertical dimension reflection angle corresponding to the RIS array is 0°-180°
  • the horizontal dimension quantization interval is: 10°
  • the vertical dimension quantization interval is: 20°.
  • the quantized horizontal-dimensional reflection angles include: 0°, 10°, 20°...180°
  • the quantized vertical-dimensional reflection angles include: 0°, 20°, 40°...180°.
  • combine the quantized horizontal dimension emission angle and the quantized vertical dimension reflection angle in pairs to obtain at least one pair of reflection angles ( ⁇ 1 , ⁇ 2 ), where ⁇ 1 is the quantized horizontal dimension reflection angle, ⁇ 2 is the quantized vertical reflection angle.
  • ( ⁇ 1 , ⁇ 2 ) can be: (10°, 20°), (20°, 40°), (0°, 20°) and so on.
  • Step b Determine a pair of phase-shift weight vectors corresponding to each pair of quantized reflection angles based on the horizontal-dimensional incident angle and vertical-dimensional incident angle of the incident signal, wherein the pair of phase-shift weight vectors includes the horizontal-dimensional phase-shift weight vector and the vertical dimension phase shift weight vector.
  • phase shift weight vector there is a calculation formula between the phase shift weight vector and the reflection angle, and a pair of phase shift weight vectors corresponding to each pair of reflection angles can be determined based on the calculation formula.
  • a pair of phase shift weight vectors corresponding to each pair of reflection angles can be determined based on the calculation formula.
  • the specific function of the phase shift weight vector is: when the RIS array weights the incident signal according to the phase shift weight vector, the weighted incident signal can correspond to The reflection angle is reflected.
  • Step c Determine the continuous offset phase angle of each RIS array element corresponding to each pair of phase shift weight vectors.
  • the method of determining the continuous offset phase angle of each RIS array element corresponding to the phase shift weight vector based on the phase shift weight vector can refer to the description of the prior art, and the present disclosure is herein I won't go into details.
  • the continuous offset phase angle of each RIS element corresponding to the phase shift weight vector mainly functions as follows: when configuring the RIS array based on the continuous offset phase angle of each RIS element.
  • the RIS array can realize the corresponding phase shift weight vector, and then the RIS array can weight the incident signal according to the phase shift weight vector, so that the incident signal can be along the The phase shift weight vector corresponds to the reflection angle for reflection.
  • Step d Quantize the continuous offset phase angle of each RIS array element corresponding to each pair of phase shift weight vectors to obtain the quantized offset phase angle of each RIS array element corresponding to each pair of phase shift weight vectors.
  • the multiple pairs of phase shift weight vectors determined based on each pair of reflection angles include phase shift weight vector 1, phase shift weight vector 2, and phase shift weight vector 3 .
  • the continuous offset phase angle of each RIS array element corresponding to the phase shift weight vector 1 can be quantized to obtain the quantized offset phase angle of each RIS array element corresponding to the phase shift weight vector 1.
  • the continuous offset phase angle of each RIS array element corresponding to the phase shift weight vector 2 is quantized to obtain the quantized offset phase angle of each RIS array element corresponding to the phase shift weight vector 2, and the phase angle corresponding to the phase shift weight vector 3
  • the continuous offset phase angle of each RIS array element is quantized to obtain the quantized offset phase angle of each RIS array element corresponding to the phase shift weight vector 3 .
  • the reason why the continuous offset phase angle of the RIS array element is quantified is because the offset phase angle of the RIS array element can only support certain discrete value, thus it is necessary to quantize the continuous offset phase angle of each RIS array element to quantize the continuous offset phase angle to the offset phase angle supported by the RIS array element.
  • the method for quantizing the continuous offset phase angle to obtain the quantized offset phase angle may include:
  • the set discrete offset phase angle may specifically be the offset phase angle supported by the RIS array element.
  • the at least one discrete offset phase angle may be, for example: 0°, 45°, 90°, 120°.
  • the method for quantifying the continuous offset phase angle of a certain RIS array element can be: at discrete offset phase angles of 0°, 45° , 90°, and 120° determine the discrete offset phase angle (that is, the discrete offset phase angle 45°) with the smallest absolute value of the difference with the continuous offset phase angle of 30°, and the discrete offset phase angle 45° is determined as The quantized offset phase angle corresponding to the certain RIS array element.
  • Step e taking the quantized offset phase angles of each RIS element corresponding to each pair of phase shift weight vectors as an offset phase angle sequence to obtain at least one offset phase angle sequence.
  • the quantized offset phase angle of each RIS array element corresponding to phase shift weight vector 1 can be used as offset phase angle sequence 1, and the phase angle corresponding to phase shift weight vector 2
  • the quantized offset phase angle of each RIS array element is taken as offset phase angle sequence 2
  • the quantized offset phase angle of each RIS array element corresponding to phase shift weight vector 3 is taken as offset phase angle sequence 3 .
  • Step f Sorting the at least one offset phase angle sequence by row to create an offset phase angle list.
  • the method for sorting at least one offset phase angle sequence by row may include at least one of the following:
  • Method 1 First sort by row for the first time according to the size order of the horizontal dimension reflection angle corresponding to the offset phase angle sequence, and then sort by row for the first time according to the size order of the vertical dimension reflection angle corresponding to the offset phase angle sequence
  • the offset phase angle sequences corresponding to the same horizontal dimension reflection angle in the subsequent offset phase angle sequences are sorted by row for the second time.
  • the offset phase angle sequences corresponding to the same horizontal dimension reflection angle are sorted, thereby realizing the sorting of all the offset phase angle sequences.
  • the first row sorting can be performed in order of the horizontal-dimensional reflection angle from small to large
  • the second sorting can be performed in the order of vertical-dimensional reflection angle from small to large Sort the rows.
  • offset phase angle sequence 1 corresponds to Reflection angle (20°, 40°)
  • reflection angle (20°, 20°) corresponding to offset phase angle sequence 2 reflection angle (10°, 40°) corresponding to offset phase angle sequence 3.
  • the method for sorting the offset phase angle sequence 1, the offset phase angle sequence 2, and the offset phase angle sequence 3 using the above method may include: first according to the offset phase angle sequence 1, the offset phase angle sequence 2, the offset phase angle sequence The horizontal dimension reflection angle corresponding to the phase shift angle sequence 3 is sorted by row for the first time in order of small to large for the offset phase angle sequence 1, the offset phase angle sequence 2, and the offset phase angle sequence 3, then the first time is sorted by The sequence after row sorting is: offset phase angle sequence 3, offset phase angle sequence 1, offset phase angle sequence 2.
  • the offset phase angle sequence 1 and the offset phase angle sequence 2 can be compared in the order of the vertical dimension reflection angle from small to large If the row sorting is performed for the second time, the sequence after the second row sorting is: offset phase angle sequence 3, offset phase angle sequence 2, and offset phase angle sequence 1.
  • Method 2 First sort by row for the first time according to the size order of the vertical dimension reflection angle corresponding to the offset phase angle sequence, and then sort by row for the first time according to the size order of the horizontal dimension reflection angle corresponding to the offset phase angle sequence.
  • the offset phase angle sequences corresponding to the reflection angle in the same vertical dimension in the subsequent offset phase angle sequences are sorted by row for the second time.
  • an index value may also be assigned to each sorted offset phase angle sequence, to form a list of offset phase angles.
  • the method for assigning index values to each offset phase angle sequence sorted by row may include at least one of the following:
  • Method 1 Assign a row of index values to each row of offset phase angle sequences.
  • Table 1 is a schematic table of an offset phase angle list established according to Method 1 provided by an embodiment of the present disclosure.
  • Method 2 Group the offset phase angle sequences arranged in rows, and set a group number for each group of offset phase angle sequences, where a set of offset phase angle sequences includes at least one adjacent row of offset phase angle sequences , after that, each row of offset phase angle sequences in each group of offset phase angle sequences is numbered within the group.
  • the sequence is offset phase angle sequence 3, offset phase angle sequence 2, and offset phase angle sequence 1
  • the offset phase angle sequence 3 can be and the offset phase angle sequence 2 belong to one group, and the group number "one” is set, and the offset phase angle sequence 1 is assigned to one group, and the group number "two” is set.
  • Table 2 is a schematic table of an offset phase angle list established according to Method 2 provided by an embodiment of the present disclosure.
  • Step 102 acquire the first index value sent by the UE.
  • a UE may be a device that provides voice and/or data connectivity to a user.
  • Terminal equipment can communicate with one or more core networks via RAN (Radio Access Network, wireless access network), and UE can be an IoT terminal, such as a sensor device, a mobile phone (or called a "cellular" phone) and a
  • the computer of the networked terminal for example, may be a fixed, portable, pocket, hand-held, built-in computer or vehicle-mounted device.
  • station Station, STA
  • subscriber unit subscriber unit
  • subscriber station subscriber station
  • mobile station mobile station
  • mobile station mobile
  • remote station remote station
  • access point remote terminal
  • user terminal or user agent.
  • the UE may also be a device of an unmanned aerial vehicle.
  • the UE may also be a vehicle-mounted device, for example, it may be a trip computer with a wireless communication function, or a wireless terminal connected externally to the trip computer.
  • the UE may also be a roadside device, for example, it may be a street lamp, a signal light, or other roadside devices with a wireless communication function.
  • the UE may determine the optimal reflection angle of the RIS array for the incident signal based on the channel estimation result, and then determine the optimal offset phase angle sequence corresponding to the optimal reflection angle, and then The first index value corresponding to the optimal offset phase angle sequence determined in the offset phase angle list is sent to the RIS.
  • the offset phase angle list at the UE side may be sent to the UE by the RIS. In another embodiment of the present disclosure, the offset phase angle list at the UE side may be sent by the base station to the UE.
  • the first index value sent by the UE may be a row index value corresponding to the optimal offset phase angle sequence.
  • the first index value sent by the UE may be the group number and the group number corresponding to the optimal offset phase angle sequence.
  • Step 103 Determine the first offset phase angle sequence corresponding to the first index value in the offset phase angle list.
  • the first offset phase angle sequence is the optimal offset phase angle sequence corresponding to the optimal reflection angle of the RIS array for the current incident signal.
  • the RIS may determine the corresponding first offset phase angle sequence based on the first row index value.
  • the first offset corresponding to the first row index value 1 can be determined based on Table 1
  • the angle sequence is: offset phase angle sequence 3.
  • the RIS may determine the corresponding first offset phase angle sequence based on the group number and the group number.
  • the group number can be determined based on Table 2: 1, the group number: 1
  • the corresponding first offset phase angle sequence is: offset phase angle sequence 3.
  • Step 104 configure the offset phase angle of each RIS array element in the RIS array based on the first offset phase angle sequence, so as to precode the RIS array.
  • the method for configuring the offset phase angle of each RIS element in the RIS array based on the first offset phase angle sequence may include: Each RIS array element is phase offset by the offset phase angle of each RIS array element.
  • each RIS element after the phase shift can be used to weight the incident signal according to the phase shift weight vector corresponding to the first offset phase angle sequence , so that the incident signal can be reflected to the UE end along the optimal reflection angle corresponding to the first offset phase angle sequence, enhance the signal strength of the signal received by the UE end, and ensure the transmission performance of the signal in the communication system.
  • the offset phase angle list corresponding to the RIS array will be determined first, wherein the offset phase angle list includes at least one row of offset phase angle sequences, and the offset phase angle list
  • the phase shift angle sequence includes the offset phase angle of each RIS element in the RIS array, and each row of the offset phase angle sequence is used to make the RIS array reflect the incident signal along a pair of reflection angles, and each row of the offset phase angle sequence corresponds to an index value.
  • the RIS array will obtain the first index value sent by the UE, and will determine the first offset phase angle sequence corresponding to the first index value, and will configure each of the RIS arrays based on the first offset phase angle sequence
  • the offset phase angle of each RIS array element to precode the RIS array. It can be seen that, in the embodiment of the present disclosure, the offset phase angle list is determined in advance, and the RIS array is precoded based on the offset phase angle list, which has low complexity and high applicability.
  • FIG. 2 is a schematic flow chart of a precoding method provided by an embodiment of the present disclosure. The method is executed by an encoding end. As shown in FIG. 2 , the precoding method may include the following steps:
  • Step 201 determine the offset phase angle list corresponding to the RIS array, the offset phase angle list includes at least one row of offset phase angle sequence, the offset phase angle sequence includes the offset phase angle of each RIS array element in the RIS array, wherein, Each row offset phase angle sequence is used to make the RIS array reflect an incident signal along a pair of reflection angles, the pair of reflection angles includes a horizontal dimension reflection angle and a vertical dimension reflection angle, and each row offset phase angle sequence corresponds to a row index value.
  • Step 202 acquire the index value of the first row sent by the UE.
  • Step 203 Determine the first offset phase angle sequence corresponding to the index value of the first row in the offset phase angle list.
  • Step 204 configure the offset phase angle of each RIS array element in the RIS array based on the first offset phase angle sequence, so as to precode the RIS array.
  • the offset phase angle list corresponding to the RIS array will be determined first, wherein the offset phase angle list includes at least one row of offset phase angle sequences, and the offset phase angle list
  • the phase shift angle sequence includes the offset phase angle of each RIS element in the RIS array, and each row of the offset phase angle sequence is used to make the RIS array reflect the incident signal along a pair of reflection angles, and each row of the offset phase angle sequence corresponds to an index value.
  • the RIS array will obtain the first index value sent by the UE, and will determine the first offset phase angle sequence corresponding to the first index value, and will configure each of the RIS arrays based on the first offset phase angle sequence
  • the offset phase angle of each RIS array element to precode the RIS array. It can be seen that, in the embodiment of the present disclosure, the offset phase angle list is determined in advance, and the RIS array is precoded based on the offset phase angle list, which has low complexity and high applicability.
  • FIG. 3 is a schematic flow chart of a precoding method provided by an embodiment of the present disclosure. The method is executed by an encoding end. As shown in FIG. 3 , the precoding method may include the following steps:
  • Step 301 determine the offset phase angle list corresponding to the RIS array, the offset phase angle list includes at least one row of offset phase angle sequence, the offset phase angle sequence includes the offset phase angle of each RIS array element in the RIS array, wherein, Each row of offset phase angle sequences is used to cause the RIS array to reflect an incident signal along a pair of reflection angles, a pair of reflection angles includes a horizontal dimension reflection angle and a vertical dimension reflection angle, and the offset phase angle list includes at least one set of offset phase angles Angle sequences, each group of offset phase angle sequences includes at least one adjacent row of offset phase angle sequences, and each row of offset phase angle sequences corresponds to a group number and a group number.
  • Step 302 acquire the group number and group number sent by the UE.
  • Step 303 Determine the first offset phase angle sequence corresponding to the group number and the group number in the offset phase angle list.
  • Step 304 configure the offset phase angle of each RIS array element in the RIS array based on the first offset phase angle sequence, so as to precode the RIS array.
  • the offset phase angle list corresponding to the RIS array will be determined first, wherein the offset phase angle list includes at least one row of offset phase angle sequences, and the offset phase angle list
  • the phase shift angle sequence includes the offset phase angle of each RIS element in the RIS array, and each row of the offset phase angle sequence is used to make the RIS array reflect the incident signal along a pair of reflection angles, and each row of the offset phase angle sequence corresponds to an index value.
  • the RIS array will obtain the first index value sent by the UE, and will determine the first offset phase angle sequence corresponding to the first index value, and will configure each of the RIS arrays based on the first offset phase angle sequence
  • the offset phase angle of each RIS array element to precode the RIS array. It can be seen that, in the embodiment of the present disclosure, the offset phase angle list is determined in advance, and the RIS array is precoded based on the offset phase angle list, which has low complexity and high applicability.
  • FIG. 4 is a schematic flowchart of a precoding method provided by an embodiment of the present disclosure. The method is executed by a UE. As shown in FIG. 4 , the precoding method may include the following steps:
  • Step 401 determine the offset phase angle list corresponding to the RIS array, the offset phase angle list includes at least one row of offset phase angle sequence, the offset phase angle sequence includes the offset phase angle of each RIS array element in the RIS array, where , each row offset phase angle sequence is used to make the RIS array reflect the incident signal along a pair of reflection angles, a pair of reflection angles includes a horizontal dimension reflection angle and a vertical dimension reflection angle, and each row offset phase angle sequence corresponds to an index value .
  • the offset phase angle list may be established by the RIS array and sent to the UE.
  • the offset phase angle list may be established by the base station and sent to the UE.
  • Step 402 determine the optimal offset phase angle sequence.
  • Step 403 sending the first index value corresponding to the optimal offset phase angle sequence to the RIS array.
  • the offset phase angle list corresponding to the RIS array will be determined first, wherein the offset phase angle list includes at least one row of offset phase angle sequences, and the offset phase angle list
  • the phase shift angle sequence includes the offset phase angle of each RIS element in the RIS array, and each row of the offset phase angle sequence is used to make the RIS array reflect the incident signal along a pair of reflection angles, and each row of the offset phase angle sequence corresponds to an index value.
  • the RIS array will obtain the first index value sent by the UE, and will determine the first offset phase angle sequence corresponding to the first index value, and will configure each of the RIS arrays based on the first offset phase angle sequence
  • the offset phase angle of each RIS array element to precode the RIS array. It can be seen that, in the embodiment of the present disclosure, the offset phase angle list is determined in advance, and the RIS array is precoded based on the offset phase angle list, which has low complexity and high applicability.
  • FIG. 5 is a schematic flowchart of a precoding method provided by an embodiment of the present disclosure. The method is executed by a UE. As shown in FIG. 5 , the precoding method may include the following steps:
  • Step 501 determine the offset phase angle list corresponding to the RIS array, the offset phase angle list includes at least one row of offset phase angle sequence, the offset phase angle sequence includes the offset phase angle of each RIS array element in the RIS array, where , each row offset phase angle sequence is used to make the RIS array reflect the incident signal along a pair of reflection angles, a pair of reflection angles includes a horizontal dimension reflection angle and a vertical dimension reflection angle, and each row offset phase angle sequence corresponds to a row index value .
  • the offset phase angle list may be established by the RIS array and sent to the UE.
  • the offset phase angle list may be established by the base station and sent to the UE.
  • Step 502 determine the optimal offset phase angle sequence.
  • Step 503 sending the index value of the first row corresponding to the optimal offset phase angle sequence to the RIS array.
  • the offset phase angle list corresponding to the RIS array will be determined first, wherein the offset phase angle list includes at least one row of offset phase angle sequences, and the offset phase angle list
  • the phase shift angle sequence includes the offset phase angle of each RIS element in the RIS array, and each row of the offset phase angle sequence is used to make the RIS array reflect the incident signal along a pair of reflection angles, and each row of the offset phase angle sequence corresponds to an index value.
  • the RIS array will obtain the first index value sent by the UE, and will determine the first offset phase angle sequence corresponding to the first index value, and will configure each of the RIS arrays based on the first offset phase angle sequence
  • the offset phase angle of each RIS array element to precode the RIS array. It can be seen that, in the embodiment of the present disclosure, the offset phase angle list is determined in advance, and the RIS array is precoded based on the offset phase angle list, which has low complexity and high applicability.
  • FIG. 6 is a schematic flowchart of a precoding method provided by an embodiment of the present disclosure. The method is executed by a UE. As shown in FIG. 6 , the precoding method may include the following steps:
  • Step 601 determine the offset phase angle list corresponding to the RIS array, the offset phase angle list includes at least one row of offset phase angle sequence, the offset phase angle sequence includes the offset phase angle of each RIS array element in the RIS array, wherein, Each row of offset phase angle sequences is used to cause the RIS array to reflect an incident signal along a pair of reflection angles, a pair of reflection angles includes a horizontal dimension reflection angle and a vertical dimension reflection angle, and the offset phase angle list includes at least one set of offset phase angles Angle sequences, each group of offset phase angle sequences includes at least one adjacent row of offset phase angle sequences, and each row of offset phase angle sequences corresponds to a group number and a group number.
  • the offset phase angle list may be established by the RIS array and sent to the UE.
  • the offset phase angle list may be established by the base station and sent to the UE.
  • the offset phase angle list received by the UE from the RIS array or the base station can have its own offset phase angle sequence with each row corresponding to the group number and the group number .
  • the offset phase angle list received by the UE from the RIS array or the base station may not have a group number and an internal number corresponding to each row of the offset phase angle sequence.
  • each row of offset phase angle sequences in the offset phase angle list can be grouped, and a group number can be set for each group of offset phase angle sequences, wherein a group of offset phase angle sequences includes at least one adjacent row of offset phase angle sequence, and then perform intra-group numbering for each row of offset phase angle sequences in each group of offset phase angle sequences.
  • the methods for the UE to group the offset phase angle sequences of each row, set the group number, and the group number can refer to the descriptions in the above embodiments, and the embodiments of the present disclosure will not be repeated here.
  • Step 602. Determine the optimal offset phase angle sequence.
  • Step 603 sending the group number and group number corresponding to the optimal offset phase angle sequence to the RIS array.
  • the offset phase angle list corresponding to the RIS array will be determined first, wherein the offset phase angle list includes at least one row of offset phase angle sequences, and the offset phase angle list
  • the phase shift angle sequence includes the offset phase angle of each RIS element in the RIS array, and each row of the offset phase angle sequence is used to make the RIS array reflect the incident signal along a pair of reflection angles, and each row of the offset phase angle sequence corresponds to an index value.
  • the RIS array will obtain the first index value sent by the UE, and will determine the first offset phase angle sequence corresponding to the first index value, and will configure each of the RIS arrays based on the first offset phase angle sequence
  • the offset phase angle of each RIS array element to precode the RIS array. It can be seen that, in the embodiments of the present disclosure, the offset phase angle list is determined in advance, and the RIS array is precoded based on the offset phase angle list, which has low complexity and high applicability.
  • FIG. 7 is a schematic structural diagram of a signal codec device 700 provided by an embodiment of the present disclosure. As shown in FIG. 7 , the signal codec device 700 may include:
  • the first determination module 701 is configured to determine the offset phase angle list corresponding to the RIS array, the offset phase angle list includes at least one row of offset phase angle sequences, and the offset phase angle sequence includes the offset phase angle sequence in the RIS array
  • the offset phase angle of each RIS array element wherein each row of offset phase angle sequence is used to make the RIS array reflect the incident signal along a pair of reflection angles, the pair of reflection angles includes the horizontal dimension reflection angle and the vertical dimension Reflection angle, and each row of offset phase angle sequence corresponds to an index value;
  • An obtaining module 702 configured to obtain the first index value sent by the UE
  • the second determining module 703 is configured to determine a first offset phase angle sequence corresponding to the first index value in the offset phase angle list;
  • the configuration module 704 is configured to configure an offset phase angle of each RIS array element in the RIS array based on the first offset phase angle sequence, so as to precode the RIS array.
  • the offset phase angle list corresponding to the RIS array will be determined first, wherein the offset phase angle list includes at least one row of offset phase angle sequences, and the offset phase angle list
  • the phase shift angle sequence includes the offset phase angle of each RIS element in the RIS array, and each row of the offset phase angle sequence is used to make the RIS array reflect the incident signal along a pair of reflection angles, and each row of the offset phase angle sequence corresponds to an index value.
  • the RIS array will obtain the first index value sent by the UE, and will determine the first offset phase angle sequence corresponding to the first index value, and will configure each of the RIS arrays based on the first offset phase angle sequence
  • the offset phase angle of each RIS array element to precode the RIS array. It can be seen that, in the embodiment of the present disclosure, the offset phase angle list is determined in advance, and the RIS array is precoded based on the offset phase angle list, which has low complexity and high applicability.
  • the first determining module is further configured to:
  • the list of offset phase angles sent by the base station is received.
  • the first determining module is further configured to:
  • a pair of phase shift weight vectors corresponding to each pair of quantized reflection angles is determined, wherein the pair of phase shift weight vectors includes the horizontal dimension phase shift weight vector and Vertical dimension phase shift weight vector;
  • the at least one sequence of offset phase angles is sorted by row to build the list of offset phase angles.
  • the RIS array is an M ⁇ N array, and both M and N are positive integers;
  • the first determination module is also used for:
  • the first determining module is further configured to:
  • the continuous offset phase angle is replaced by a discrete offset phase angle of the at least one discrete offset phase angle with the smallest absolute value of a difference from the continuous offset phase angle.
  • the first determining module is further configured to:
  • the offset phase angle sequence corresponding to the same horizontal dimension reflection angle is sorted by row for the second time;
  • the offset phase angle sequence corresponding to the reflection angle in the same vertical dimension is sorted by row for the second time.
  • each row of offset phase angle sequences in the offset phase angle list corresponds to a row of index values
  • the acquisition module is also used for:
  • the device further includes:
  • Offset the offset phase angle sequences in the offset phase angle list and set a group number for each group of offset phase angle sequences, wherein one set of offset phase angle sequences includes at least one row of adjacent offset phase angle sequences ;
  • Each row of offset phase angle sequences in each group of offset phase angle sequences is numbered within the group.
  • the acquisition module is also used for:
  • FIG. 8 is a schematic structural diagram of a signal codec device 700 provided by an embodiment of the present disclosure. As shown in FIG. 7 , the signal codec device 800 may include:
  • the first determination module 801 is configured to determine the offset phase angle list corresponding to the RIS array, the offset phase angle list includes at least one row of offset phase angle sequences, and the offset phase angle sequence includes the offset phase angle sequence in the RIS array
  • the offset phase angle of each RIS array element wherein each row of offset phase angle sequence is used to make the RIS array reflect the incident signal along a pair of reflection angles, the pair of reflection angles includes the horizontal dimension reflection angle and the vertical dimension Reflection angle, and each row of offset phase angle sequence corresponds to an index value;
  • the second determination module 802 is configured to determine the optimal offset phase angle sequence
  • the sending module 803 is configured to send the first index value corresponding to the optimal offset phase angle sequence to the RIS array.
  • the offset phase angle list corresponding to the RIS array will be determined first, wherein the offset phase angle list includes at least one row of offset phase angle sequences, and the offset phase angle list
  • the phase shift angle sequence includes the offset phase angle of each RIS element in the RIS array, and each row of the offset phase angle sequence is used to make the RIS array reflect the incident signal along a pair of reflection angles, and each row of the offset phase angle sequence corresponds to an index value.
  • the RIS array will obtain the first index value sent by the UE, and will determine the first offset phase angle sequence corresponding to the first index value, and will configure each of the RIS arrays based on the first offset phase angle sequence
  • the offset phase angle of each RIS array element to precode the RIS array. It can be seen that, in the embodiment of the present disclosure, the offset phase angle list is determined in advance, and the RIS array is precoded based on the offset phase angle list, which has low complexity and high applicability.
  • the first determining module is further configured to:
  • each row of offset phase angle sequences in the offset phase angle list corresponds to a row of index values
  • the sending module is also used for:
  • the device is also used for:
  • Offset the offset phase angle sequences in the offset phase angle list and set a group number for each group of offset phase angle sequences, wherein one set of offset phase angle sequences includes at least one row of adjacent offset phase angle sequences ;
  • Each row of offset phase angle sequences in each group of offset phase angle sequences is numbered within the group.
  • the sending module is also used for:
  • Fig. 9 is a block diagram of a user equipment UE900 provided by an embodiment of the present disclosure.
  • the UE 900 may be a mobile phone, a computer, a digital broadcast terminal device, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
  • UE900 may include at least one of the following components: a processing component 902, a memory 904, a power supply component 906, a multimedia component 908, an audio component 910, an input/output (I/O) interface 912, a sensor component 913, and a communication component 916.
  • a processing component 902 a memory 904
  • a power supply component 906 a multimedia component 908, an audio component 910, an input/output (I/O) interface 912, a sensor component 913, and a communication component 916.
  • I/O input/output
  • the processing component 902 generally controls the overall operations of the UE 900, such as those associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 902 may include at least one processor 920 to execute instructions to complete all or part of the steps of the above-mentioned method.
  • processing component 902 can include at least one module to facilitate interaction between processing component 902 and other components.
  • processing component 902 may include a multimedia module to facilitate interaction between multimedia component 908 and processing component 902 .
  • the memory 904 is configured to store various types of data to support operations at the UE 900 . Examples of such data include instructions for any application or method operating on UE900, contact data, phonebook data, messages, pictures, videos, etc.
  • the memory 904 can be implemented by any type of volatile or non-volatile memory device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • the power supply component 906 provides power to various components of the UE 900 .
  • Power component 906 may include a power management system, at least one power supply, and other components associated with generating, managing, and distributing power for UE 900 .
  • the multimedia component 908 includes a screen providing an output interface between the UE 900 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes at least one touch sensor to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense a boundary of a touch or slide action, but also detect a wake-up time and pressure related to the touch or slide operation.
  • the multimedia component 908 includes a front camera and/or a rear camera. When the UE900 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capability.
  • the audio component 910 is configured to output and/or input audio signals.
  • the audio component 910 includes a microphone (MIC), which is configured to receive an external audio signal when the UE 900 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. Received audio signals may be further stored in memory 904 or sent via communication component 916 .
  • the audio component 910 also includes a speaker for outputting audio signals.
  • the I/O interface 912 provides an interface between the processing component 902 and a peripheral interface module.
  • the peripheral interface module may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: a home button, volume buttons, start button, and lock button.
  • the sensor component 913 includes at least one sensor for providing various aspects of state assessment for the UE 900 .
  • the sensor component 913 can detect the open/closed state of the device 900, the relative positioning of components, such as the display and keypad of the UE900, the sensor component 913 can also detect the position change of the UE900 or a component of the UE900, and the user and Presence or absence of UE900 contact, UE900 orientation or acceleration/deceleration and temperature change of UE900.
  • the sensor assembly 913 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • the sensor assembly 913 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 913 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.
  • Communication component 916 is configured to facilitate wired or wireless communications between UE 900 and other devices.
  • UE900 can access wireless networks based on communication standards, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 916 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 916 also includes a near field communication (NFC) module to facilitate short-range communication.
  • NFC near field communication
  • the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra Wide Band (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID Radio Frequency Identification
  • IrDA Infrared Data Association
  • UWB Ultra Wide Band
  • Bluetooth Bluetooth
  • UE 900 may be powered by at least one Application Specific Integrated Circuit (ASIC), Digital Signal Processor (DSP), Digital Signal Processing Device (DSPD), Programmable Logic Device (PLD), Field Programmable Gate Array ( FPGA), controller, microcontroller, microprocessor or other electronic components for implementing the above method.
  • ASIC Application Specific Integrated Circuit
  • DSP Digital Signal Processor
  • DSPD Digital Signal Processing Device
  • PLD Programmable Logic Device
  • FPGA Field Programmable Gate Array
  • controller microcontroller, microprocessor or other electronic components for implementing the above method.
  • Fig. 10 is a block diagram of a network side device 1000 provided by an embodiment of the present disclosure.
  • the network side device 1000 may be provided as a network side device.
  • the network side device 1000 includes a processing component 1011, which further includes at least one processor, and a memory resource represented by a memory 1032 for storing instructions executable by the processing component 1022, such as an application program.
  • the application program stored in memory 1032 may include one or more modules each corresponding to a set of instructions.
  • the processing component 1010 is configured to execute instructions, so as to execute any of the aforementioned methods applied to the network side device, for example, the method shown in FIG. 1 .
  • the network side device 1000 may also include a power supply component 1026 configured to perform power management of the network side device 1000, a wired or wireless network interface 1050 configured to connect the network side device 1000 to the network, and an input and output (I/O ) interface 1058.
  • the network side device 1000 can operate based on the operating system stored in the memory 1032, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, Free BSDTM or similar.
  • the methods provided in the embodiments of the present disclosure are introduced from the perspectives of the network side device and the UE respectively.
  • the network side device and the UE may include a hardware structure and a software module, and implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • a certain function among the above-mentioned functions may be implemented in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • the methods provided in the embodiments of the present disclosure are introduced from the perspectives of the network side device and the UE respectively.
  • the network side device and the UE may include a hardware structure and a software module, and implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • a certain function among the above-mentioned functions may be implemented in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • the communication device may include a transceiver module and a processing module.
  • the transceiver module may include a sending module and/or a receiving module, the sending module is used to realize the sending function, the receiving module is used to realize the receiving function, and the sending and receiving module can realize the sending function and/or the receiving function.
  • the communication device may be a terminal device (such as the terminal device in the foregoing method embodiments), may also be a device in the terminal device, and may also be a device that can be matched and used with the terminal device.
  • the communication device may be a network device, or a device in the network device, or a device that can be matched with the network device.
  • the communication device may be a network device, or a terminal device (such as the terminal device in the aforementioned method embodiment), or a chip, a chip system, or a processor that supports the network device to implement the above method, or it may be a terminal device that supports A chip, a chip system, or a processor for realizing the above method.
  • the device can be used to implement the methods described in the above method embodiments, and for details, refer to the descriptions in the above method embodiments.
  • a communications device may include one or more processors.
  • the processor may be a general purpose processor or a special purpose processor or the like.
  • it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processor can be used to control communication devices (such as network side equipment, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.)
  • a computer program that processes data for a computer program.
  • the communication device may further include one or more memories, on which computer programs may be stored, and the processor executes the computer programs, so that the communication device executes the methods described in the foregoing method embodiments.
  • data may also be stored in the memory.
  • the communication device and the memory can be set separately or integrated together.
  • the communication device may further include a transceiver and an antenna.
  • the transceiver 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 may include a receiver and a transmitter, and the receiver may be called a receiver or a receiving circuit for realizing a receiving function; the transmitter may be called a transmitter or a sending circuit for realizing a sending function.
  • the communication device may further include one or more interface circuits.
  • the interface circuit is used to receive code instructions and transmit them to the processor.
  • the processor executes the code instructions to enable the communication device to execute the methods described in the foregoing method embodiments.
  • the communication device is a terminal device (such as the terminal device in the foregoing method embodiments): the processor is configured to execute any of the methods shown in FIG. 1-FIG. 4a.
  • the communication device is a network device: the transceiver is used to execute the method shown in any one of Fig. 5-Fig. 7 .
  • the processor may include a transceiver for implementing receiving and transmitting functions.
  • the transceiver may be a transceiver circuit, or an interface, or an interface circuit.
  • the transceiver circuits, interfaces or interface circuits for realizing the functions of receiving and sending can be separated or integrated together.
  • 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 signal transmission or transmission.
  • the processor may store a computer program, and the computer program runs on the processor to enable the communication device to execute the methods described in the foregoing method embodiments.
  • a computer program may be embedded in a processor, in which case the processor may be implemented by hardware.
  • the communication device may include a circuit, and the circuit may implement the function of sending or receiving or communicating in the foregoing method embodiments.
  • the processors and transceivers described in this disclosure can be implemented on integrated circuits (integrated circuits, ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board, PCB), electronic equipment, etc.
  • the processor and transceiver can also be fabricated using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), 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 (Gas), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS nMetal-oxide-semiconductor
  • PMOS bipolar junction transistor
  • BJT bipolar CMOS
  • SiGe silicon germanium
  • Gas gallium arsenide
  • the communication device described in the above embodiments may be a network device or a terminal device (such as the terminal device in the foregoing method embodiments), but the scope of the communication device described in this disclosure is not limited thereto, and the structure of the communication device may not be limited limits.
  • a communication device may be a stand-alone device or may be part of a larger device.
  • the communication device may be:
  • a set of one or more ICs may also include storage components for storing data and computer programs;
  • ASIC such as modem (Modem);
  • the communications device may be a chip or system-on-a-chip
  • the chip includes a processor and an interface.
  • the number of processors may be one or more, and the number of interfaces may be more than one.
  • the chip also includes a memory, which is used to store necessary computer programs and data.
  • An embodiment of the present disclosure also provides a system for determining the duration of a side link, the system includes a communication device as a terminal device (such as the first terminal device in the method embodiment above) in the foregoing embodiments and a communication device as a network device, Alternatively, the system includes the communication device as the terminal device in the foregoing embodiments (such as the first terminal device in the foregoing method embodiment) and the communication device as a network device.
  • the present disclosure also provides a readable storage medium on which instructions are stored, and when the instructions are executed by a computer, the functions of any one of the above method embodiments are realized.
  • the present disclosure also provides a computer program product, which implements the functions of any one of the above method embodiments when the computer program product is executed by a computer.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product comprises one or more computer programs. When the computer program is loaded and executed on the computer, all or part of the processes or functions according to the embodiments of the present disclosure will be generated.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
  • the computer program can be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program can be downloaded from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
  • the available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disk, SSD)) etc.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a high-density digital video disc (digital video disc, DVD)
  • a semiconductor medium for example, a solid state disk (solid state disk, SSD)
  • At least one in the present disclosure can also be described as one or more, and a plurality can be two, three, four or more, and the present disclosure is not limited.
  • the technical feature is distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D”, etc.
  • the technical features described in “First”, “Second”, “Third”, “A”, “B”, “C” and “D” have no sequence or order of magnitude among the technical features described.

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Abstract

本公开提出一种预解码方法、装置、用户设备、可重构智能表面RIS阵列及存储介质，属于通信技术领域。该方法包括：确定RIS阵列对应的偏移相角列表，偏移相角列表包括至少一行偏移相角序列，偏移相角序列包括RIS阵列中每个RIS阵元的偏移相角，其中，每一行偏移相角序列用于使得RIS阵列沿一对反射角反射入射信号，一对反射角包括水平维反射角和垂直维反射角，以及，每一行偏移相角序列对应一索引值；获取用户设备UE发送的第一索引值；在偏移相角列表中确定出与第一索引值对应的第一偏移相角序列；基于第一偏移相角序列配置RIS阵列中每个RIS阵元的偏移相角，以对RIS阵列进行预编码。本公开提供的预编码方法的复杂性较低，且适用范围较广。

Description

一种预编码方法、装置、用户设备、可重构智能表面RIS阵列及存储介质 技术领域
本公开涉及通信技术领域，尤其涉及一种预编码方法、装置、用户设备、可重构智能表面RIS阵列及存储介质。
背景技术
在通信系统中，通过引入RIS(Reconfigurable Intelligent Surface，可重构智能表面)预编码技术，来将基站传输至RIS的入射信号按照特定方向反射至UE(User Equipment，终端设备)，以构建智能可编程无线环境，增强UE端接收信号的信号强度，实现对信道的控制。
相关技术中，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。但是，基于交替优化技术实现的预编码方法的复杂度过高，适用性较差。
发明内容
本公开提出的一种预编码方法、装置、用户设备、可重构智能表面RIS阵列及存储介质，以解决相关技术中的预编码方法的复杂度过高，适用性较差的技术问题。
本公开一方面实施例提出的预编码方法，应用于RIS阵列，包括：
确定所述RIS阵列对应的偏移相角列表，所述偏移相角列表包括至少一行偏移相角序列，所述偏移相角序列包括所述RIS阵列中每个RIS阵元的偏移相角，其中，每一行偏移相角序列用于使得所述RIS阵列沿一对反射角反射入射信号，所述一对反射角包括水平维反射角和垂直维反射角，以及，每一行偏移相角序列对应一索引值；
获取用户设备UE发送的第一索引值；
在所述偏移相角列表中确定出与所述第一索引值对应的第一偏移相角序列；
基于所述第一偏移相角序列配置所述RIS阵列中每个RIS阵元的偏移相角，以对所述RIS阵列进行预编码。
本公开另一方面实施例提出的预编码方法，应用于UE，包括：
确定所述RIS阵列对应的偏移相角列表，所述偏移相角列表包括至少一行偏移相角序列，所述偏移相角序列包括所述RIS阵列中每个RIS阵元的偏移相角，其中，每一行偏移相角序列用于使得所述RIS阵列沿一对反射角反射入射信号，所述一对反射角包括水平维反射角和垂直维反射角，以及，每一行偏移相角序列对应一索引值；
确定最优偏移相角序列；
向所述RIS阵列发送所述最优偏移相角序列对应的第一索引值。
本公开又一方面实施例提出的预编码装置，包括：
第一确定模块，用于确定所述RIS阵列对应的偏移相角列表，所述偏移相角列表包括至少一行偏移相角序列，所述偏移相角序列包括所述RIS阵列中每个RIS阵元的偏移相角，其中，每一行偏移相角序列用于使得所述RIS阵列沿一对反射角反射入射信号，所述一对反射角包括水平维反射角和垂直维反射角，以及，每一行偏移相角序列对应一索引值；
获取模块，用于获取UE发送的第一索引值；
第二确定模块，用于在所述偏移相角列表中确定出与所述第一索引值对应的第一偏移相角序列；
配置模块，用于基于所述第一偏移相角序列配置所述RIS阵列中每个RIS阵元的偏移相角，以对所述RIS阵列进行预编码。
本公开又一方面实施例提出的预编码装置，其特征在于，包括：
第一确定模块，用于确定所述RIS阵列对应的偏移相角列表，所述偏移相角列表包括至少一行偏移相角序列，所述偏移相角序列包括所述RIS阵列中每个RIS阵元的偏移相角，其中，每一行偏移相角序列用于使得所述RIS阵列沿一对反射角反射入射信号，所述一对反射角包括水平维反射角和垂直 维反射角，以及，每一行偏移相角序列对应一索引值；
第二确定模块，用于确定最优偏移相角序列；
发送模块，用于向所述RIS阵列发送所述最优偏移相角序列对应的第一索引值。
本公开又一方面实施例提出的一种通信装置，所述装置包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如上一方面实施例提出的方法。
本公开又一方面实施例提出的一种通信装置，所述装置包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如上另一方面实施例提出的方法。
本公开又一方面实施例提出的通信装置，包括：处理器和接口电路；
所述接口电路，用于接收代码指令并传输至所述处理器；
所述处理器，用于运行所述代码指令以执行如一方面实施例提出的方法。
本公开又一方面实施例提出的通信装置，包括：处理器和接口电路；
所述接口电路，用于接收代码指令并传输至所述处理器；
所述处理器，用于运行所述代码指令以执行如另一方面实施例提出的方法。
本公开又一方面实施例提出的计算机可读存储介质，用于存储有指令，当所述指令被执行时，使如一方面实施例提出的方法被实现。
本公开又一方面实施例提出的计算机可读存储介质，用于存储有指令，当所述指令被执行时，使如另一方面实施例提出的方法被实现。
综上所述，在本公开实施例提供的预编码方法、装置、用户设备、可重构智能表面RIS阵列及存储介质之中，会先确定出RIS阵列对应的偏移相角列表，其中，该偏移相角列表包括至少一行偏移相角序列，偏移相角序列包括RIS阵列中每个RIS阵元的偏移相角，每一行偏移相角序列用于使得RIS阵列沿一对反射角反射入射信号，每一行偏移相角序列对应一索引值。之后，RIS阵列会获取UE发送的第一索引值，并会确定出与该第一索引值对应的第一偏移相角序列，并会基于该第一偏移相角序列配置RIS阵列中每个RIS阵元的偏移相角，以对RIS阵列进行预编码。由此可知，本公开实施例之中，会预先确定偏移相角列表，以及基于该偏移相角列表来对RIS阵列进行预编码，复杂性较低，适用性较高。
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为本公开一个实施例所提供的预编码方法的流程示意图；
图2为本公开另一个实施例所提供的预编码方法的流程示意图；
图3为本公开再一个实施例所提供的预编码方法的流程示意图；
图4为本公开又一个实施例所提供的预编码方法的流程示意图；
图5为本公开又一个实施例所提供的预编码方法的流程示意图；
图6为本公开又一个实施例所提供的预编码方法的流程示意图；
图7为本公开又一个实施例所提供的预编码装置的结构示意图；
图8为本公开又一个实施例所提供的预编码装置的结构示意图；
图9是本公开一个实施例所提供的一种用户设备的框图；
图10为本公开一个实施例所提供的一种网络侧设备的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表 与本公开实施例相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开实施例的一些方面相一致的装置和方法的例子。
在本公开实施例使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开实施例。在本公开实施例和所附权利要求书中所使用的单数形式的“一种”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开实施例可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开实施例范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”及“若”可以被解释成为“在……时”或“当……时”或“响应于确定”。
下面参考附图对本公开实施例所提供的预编码方法、装置、编码设备、解码设备及存储介质进行详细描述。
图1为本公开实施例所提供的一种预编码方法的流程示意图，该方法由RIS阵列执行，如图1所示，该预编码方法可以包括以下步骤：
步骤101、确定RIS阵列对应的偏移相角列表。
在本公开的一个实施例之中，该偏移相角列表可以包括至少一行偏移相角序列，其中，该偏移相角序列可以包括RIS阵列中每个RIS阵元的偏移相角，以及，每一行偏移相角序列用于使得RIS阵列沿一对反射角反射入射信号，其中，一对反射角包括水平维反射角和垂直维反射角，入射信号可以为基站传输至RIS的入射信号，并且不同行偏移相角序列用于使得RIS阵列沿不同的反射角反射入射信号，同时，每一行偏移相角序列对应一索引值。
以及，在本公开的一个实施例之中，上述偏移相角列表可以是由RIS阵列建立的。
在本公开的另一个实施例之中，该偏移相角列表可以是由基站建立并发送至RIS阵列的。
进一步地，在本公开的一个实施例之中，偏移相角列表的建立方法可以包括以下步骤：
步骤a、量化RIS阵列对应的水平维反射角和垂直维反射角以得到至少一对反射角。
其中，假设RIS阵列为M×N阵列，M和N均为正整数。则量化RIS阵列对应的水平维反射角和垂直维反射角以得到至少一对反射角的方法可以包括：
以量化间隔
Figure PCTCN2021126840-appb-000001
量化水平维反射角，以量化间隔
Figure PCTCN2021126840-appb-000002
量化垂直维反射角，p，q为过采样因子。之后，可以以量化后的水平维反射角和量化后的垂直维反射角两两组合以得到至少一对反射角。
示例的，在本公开的一个实施例之中，假设RIS阵列对应的水平维反射角为0°～180°、RIS阵列对应的垂直维反射角为0°～180°，水平维量化间隔为：10°，垂直维量化间隔为：20°。则量化后的水平维反射角包括：0°、10°、20°……180°；量化后的垂直维反射角包括：0°、20°、40°……180°。则将量化后的水平维发射角和量化后的垂直维反射角两两组合以得到至少一对反射角(β 1，β 2)，其中，β 1为量化后的水平维反射角，β 2为量化后的垂直维反射角。例如，(β 1，β 2)可以为：(10°，20°)、(20°，40°)、(0°，20°)等。
步骤b、基于入射信号的水平维入射角和垂直维入射角，确定出量化后的每对反射角对应的一对相移权向量，其中，一对相移权向量包括水平维相移权向量和垂直维相移权向量。
在本公开的一个实施例之中，相移权向量与反射角之间存在有计算公式，基于该计算公式可以确定出每对反射角对应的一对相移权向量。其中，关于上述计算公式的相关介绍可以参考现有技术描述，本公开在此不做赘述。
以及，在本公开的一个实施例之中，该相移权向量具体作用为：当RIS阵列按照该相移权向量对入射信号进行加权后，加权后的入射信号可以沿该相移权向量对应的反射角进行反射。
步骤c、确定出每对相移权向量对应的每个RIS阵元的连续偏移相角。
其中，在本公开的一个实施例之中，基于相移权向量确定出该相移权向量对应的每个RIS阵元的连续偏移相角的方法可以参考现有技术描述，本公开在此不做赘述。
以及，在本公开的一个实施例之中，相移权向量对应的每个RIS阵元的连续偏移相角主要作用为：当基于每个RIS阵元的连续偏移相角配置RIS阵列中的每个RIS阵元的偏移相角时，能够使得该RIS阵列实现对应的相移权向量，进而可以使得RIS阵列按照该相移权向量对入射信号进行加权，以使入射信号能够沿该相移权向量对应的反射角进行反射。
步骤d、对每对相移权向量对应的每个RIS阵元的连续偏移相角进行量化以得到每对相移权向量对应的每个RIS阵元的量化后偏移相角。
示例的，在本公开的一个实施例中，假设上述步骤b中，基于每对反射角确定出的多对相移权向量包括相移权向量1、相移权向量2、相移权向量3。则本步骤d中可以对相移权向量1对应的每个RIS阵元的连续偏移相角进行量化以得到相移权向量1对应的每个RIS阵元的量化后偏移相角、对相移权向量2对应的每个RIS阵元的连续偏移相角进行量化以得到相移权向量2对应的每个RIS阵元的量化后偏移相角、对相移权向量3对应的每个RIS阵元的连续偏移相角进行量化以得到相移权向量3对应的每个RIS阵元的量化后偏移相角。
以及，需要说明的是，在本公开的一个实施例之中，之所以要对RIS阵元的连续偏移相角进行量化，是因为RIS阵元的偏移相角只能是支持某几个离散值，由此需要对每个RIS阵元的连续偏移相角进行量化以将连续偏移相角量化为RIS阵元所支持的偏移相角。
进一步地，在本公开的一个实施例之中，对连续偏移相角进行量化以得到量化后的偏移相角的方法可以包括：
先设置至少一个离散偏移相角，再利用该至少一个离散偏移相角中与连续偏移相角之差的绝对值最小的离散偏移相角替换该连续偏移相角以对连续偏移相角进行量化。
其中，在本公开的一个实施例之中，该设置的离散偏移相角具体可以为RIS阵元所支持的偏移相角。示例的，该至少一个离散偏移相角例如可以为：0°、45°、90°、120°。以及，假设某一RIS阵元的连续偏移相角为30°，则对该某一RIS阵元的连续偏移相角进行量化的方法可以为：在离散偏移相角0°、45°、90°、120°中确定出与连续偏移相角30°之差的绝对值最小的离散偏移相角(即离散偏移相角45°)，将离散偏移相角45°确定为该某一RIS阵元对应的量化后的偏移相角。
步骤e、将每对相移权向量对应的每个RIS阵元的量化后偏移相角作为一偏移相角序列，以得到至少一个偏移相角序列。
示例的，在本公开的一个实施例之中，可以将相移权向量1对应的每个RIS阵元的量化后偏移相角作为偏移相角序列1、将相移权向量2对应的每个RIS阵元的量化后偏移相角作为偏移相角序列2、将相移权向量3对应的每个RIS阵元的量化后偏移相角作为偏移相角序列3。
步骤f、对至少一个偏移相角序列按行进行排序，以建立偏移相角列表。
其中，在本公开的一个实施例之中，对至少一个偏移相角序列按行进行排序的方法可以包括以下的至少一种：
方法一：先按照偏移相角序列对应的水平维反射角的大小顺序进行第一次按行排序，再按照偏移相角序列对应的垂直维反射角的大小顺序对第一次按行排序之后的偏移相角序列中对应同一水平维反射角的偏移相角序列进行第二次按行排序。
其中，在本公开的一个实施例之中，在利用上述方法一进行第一次按行排序时，难免会存在对应有同一水平维反射角的偏移相角序列，则此时第一次按行排序时无法对对应有同一水平维反射角的偏移相角序列进行排序，基于此，通过执行上述方法一中的第二次按行排序，以对第一次按行排序之后的偏移相角序列中对应同一水平维反射角的偏移相角序列进行排序，由此实现对全部偏移相角序列均进行排序。
以及，在本公开的一个实施例之中，具体可以是按照水平维反射角从小到大的顺序进行第一次按行排序，以及，按照垂直维反射角从小到大的顺序进行第二次按行排序。
示例的，假设上述步骤e得到了三个偏移相角序列，分别为偏移相角序列1、偏移相角序列2、偏移相角序列3，其中，偏移相角序列1对应的反射角(20°，40°)、偏移相角序列2对应的反射角(20°，20°)、偏移相角序列3对应的反射角(10°，40°)。则采用上述方法一对偏移相角序列1、偏移相角序列2、偏移相角序列3进行排序的方法可以包括：先按照偏移相角序列1、偏移相角序列2、偏移 相角序列3对应的水平维反射角从小到大的顺序对偏移相角序列1、偏移相角序列2、偏移相角序列3进行第一次按行排序，则第一次按行排序之后的顺序为：偏移相角序列3、偏移相角序列1、偏移相角序列2。之后，基于偏移相角序列1和偏移相角序列2对应同一水平维反射角，因此，可以按照垂直维反射角从小到大的顺序对偏移相角序列1和偏移相角序列2进行第二次按行排序，则第二次按行排序后的顺序为：偏移相角序列3、偏移相角序列2、偏移相角序列1。
方法二：先按照偏移相角序列对应的垂直维反射角的大小顺序进行第一次按行排序，再按照偏移相角序列对应的水平维反射角的大小顺序对第一次按行排序之后的偏移相角序列中对应同一垂直维反射角的偏移相角序列进行第二次按行排序。
其中，关于方法二的相关介绍可以参照上述对于方法一的介绍内容，本公开实施例在此不做赘述。
此外，需要说明的是，在本公开的一个实施例之中，在对至少一个偏移相角序列按行进行排序之后，还可以对排序后的每个偏移相角序列分配一索引值，以构成偏移相角列表。
其中，在本公开的一个实施例之中，对按行排序后的每个偏移相角序列分配索引值的方法可以包括以下至少一种：
方法1：为每一行偏移相角序列分配一行索引值。
示例的，假设对至少一个偏移相角序列按行进行排序之后的顺序为偏移相角序列3、偏移相角序列2、偏移相角序列1，则可以为偏移相角序列3分配一行索引值1、为偏移相角序列2分配一行索引值2、为偏移相角序列1分配一行索引值3。其中，表1为本公开实施例提供的一种按照方法1建立的偏移相角列表的示意表。
表1
行索引值 偏移相角序列
1 偏移相角序列3
2 偏移相角序列2
3 偏移相角序列1
方法2：对按行排列后的偏移相角序列进行分组，并对每组偏移相角序列设置组号，其中，一组偏移相角序列包括相邻的至少一行偏移相角序列，之后，再对每组偏移相角序列中的各行偏移相角序列进行组内编号。
示例的，假设对至少一个偏移相角序列按行进行排序之后的顺序为偏移相角序列3、偏移相角序列2、偏移相角序列1，则可以将偏移相角序列3和偏移相角序列2归属为一组，并设置组号“一”，将偏移相角序列1归属为一组，并设置组号“二”。之后，对组号“一”中的偏移相角序列3和偏移相角序列2分别设置组内编号①、②，对组号“二”中的偏移相角序列1设置组内编号①。其中，表2为本公开实施例提供的一种按照方法2建立的偏移相角列表的示意表。
表2
Figure PCTCN2021126840-appb-000003
步骤102、获取UE发送的第一索引值。
其中，在本公开的一个实施例之中，UE可以是指向用户提供语音和/或数据连通性的设备。终端设备可以经RAN(Radio Access Network，无线接入网)与一个或多个核心网进行通信，UE可以是物联网终端，如传感器设备、移动电话(或称为“蜂窝”电话)和具有物联网终端的计算机，例如，可以是固定式、便携式、袖珍式、手持式、计算机内置的或者车载的装置。例如，站(Station，STA)、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点、远程终端(remoteterminal)、接入终端(access terminal)、用户装置(user terminal)或用户代理(useragent)。或者，UE也可以是无人飞行器的设备。或者，UE也可以是车载设备，比如，可以是具有无线通信功能的行车电脑，或者是外接行车电脑的无线终端。或者，UE也可以是路边设备，比如，可以是具有无 线通信功能的路灯、信号灯或者其它路边设备等。
在本公开的一个实施例之中，UE可以基于信道估计结果确定出RIS阵列对于入射信号的最佳反射角度，之后，确定出该最佳反射角度对应的最优偏移相角序列，并在偏移相角列表中确定出该最优偏移相角序列对应的第一索引值发送至RIS。
其中，在本公开的一个实施例之中，UE端的该偏移相角列表可以是RIS发送至UE的。在本公开的另一个实施例之中，UE端的该偏移相角列表可以是基站发送至UE的。
以及，在本公开的一个实施例之中，UE发送的第一索引值可以是该最优偏移相角序列对应的行索引值。
在本公开的另一个实施例之中，UE发送的第一索引值可以是该最优偏移相角序列对应的组号及组内编号。
步骤103、在偏移相角列表中确定出与第一索引值对应的第一偏移相角序列。
其中，该第一偏移相角序列即为RIS阵列对当前的入射信号的最佳反射角度所对应的最优偏移相角序列。
以及，在本公开的一个实施例之中，当该第一索引值为第一行索引值时，RIS可以基于该第一行索引值确定出对应的第一偏移相角序列。
示例的，在本公开的一个实施例之中，假设UE发送的第一索引值为第一行索引值1，则基于表1可以确定出该第一行索引值1对应的第一偏移相角序列为：偏移相角序列3。
在本公开的另一个实施例之中，当该第一索引值为组号及组内编号时，RIS可以基于该组号及组内编号确定出对应的第一偏移相角序列。
示例的，在本公开的一个实施例之中，假设UE发送的第一索引值为组号：一、组内编号：①，则基于表2可以确定出该组号：一、组内编号：①对应的第一偏移相角序列为：偏移相角序列3。
步骤104、基于第一偏移相角序列配置RIS阵列中每个RIS阵元的偏移相角，以对RIS阵列进行预编码。
具体的，在本公开的一个实施例之中，基于第一偏移相角序列配置RIS阵列中每个RIS阵元的偏移相角的方法可以包括：按照第一偏移相角序列中每个RIS阵元的偏移相角对每个RIS阵元进行相位偏移。
以及，在对RIS阵列每个RIS阵元进行相位偏移之后，即可利用相位偏移后的每个RIS阵元按照该第一偏移相角序列对应的相移权向量对入射信号进行加权，从而使得入射信号能够沿着该第一偏移相角序列对应的最佳反射角反射至UE端，增强UE端接收信号的信号强度，确保了通信系统中信号的传输性能。
综上所述，在本公开实施例提供的预编码方法之中，会先确定出RIS阵列对应的偏移相角列表，其中，该偏移相角列表包括至少一行偏移相角序列，偏移相角序列包括RIS阵列中每个RIS阵元的偏移相角，每一行偏移相角序列用于使得RIS阵列沿一对反射角反射入射信号，每一行偏移相角序列对应一索引值。之后，RIS阵列会获取UE发送的第一索引值，并会确定出与该第一索引值对应的第一偏移相角序列，并会基于该第一偏移相角序列配置RIS阵列中每个RIS阵元的偏移相角，以对RIS阵列进行预编码。由此可知，本公开实施例之中，会预先确定偏移相角列表，以及基于该偏移相角列表来对RIS阵列进行预编码，复杂性较低，适用性较高。
图2为本公开实施例所提供的一种预编码方法的流程示意图，该方法由编码端执行，如图2所示，该预编码方法可以包括以下步骤：
步骤201、确定RIS阵列对应的偏移相角列表，偏移相角列表包括至少一行偏移相角序列，偏移相角序列包括RIS阵列中每个RIS阵元的偏移相角，其中，每一行偏移相角序列用于使得RIS阵列沿一对反射角反射入射信号，一对反射角包括水平维反射角和垂直维反射角，以及，每一行偏移相角序列对应一行索引值。
步骤202、获取UE发送的第一行索引值。
步骤203、在偏移相角列表中确定出与第一行索引值对应的第一偏移相角序列。
步骤204、基于第一偏移相角序列配置RIS阵列中每个RIS阵元的偏移相角，以对RIS阵列进行预编码。
其中，关于步骤201-204的详细介绍可以参考上述实施例，本公开实施例在此不做赘述。
综上所述，在本公开实施例提供的预编码方法之中，会先确定出RIS阵列对应的偏移相角列表，其中，该偏移相角列表包括至少一行偏移相角序列，偏移相角序列包括RIS阵列中每个RIS阵元的偏移相角，每一行偏移相角序列用于使得RIS阵列沿一对反射角反射入射信号，每一行偏移相角序列对应一索引值。之后，RIS阵列会获取UE发送的第一索引值，并会确定出与该第一索引值对应的第一偏移相角序列，并会基于该第一偏移相角序列配置RIS阵列中每个RIS阵元的偏移相角，以对RIS阵列进行预编码。由此可知，本公开实施例之中，会预先确定偏移相角列表，以及基于该偏移相角列表来对RIS阵列进行预编码，复杂性较低，适用性较高。
图3为本公开实施例所提供的一种预编码方法的流程示意图，该方法由编码端执行，如图3所示，该预编码方法可以包括以下步骤：
步骤301、确定RIS阵列对应的偏移相角列表，偏移相角列表包括至少一行偏移相角序列，偏移相角序列包括RIS阵列中每个RIS阵元的偏移相角，其中，每一行偏移相角序列用于使得RIS阵列沿一对反射角反射入射信号，一对反射角包括水平维反射角和垂直维反射角，以及，偏移相角列表包括至少一组偏移相角序列，每组偏移相角序列包括相邻的至少一行偏移相角序列，每行偏移相角序列对应有组号及组内编号。
步骤302、获取UE发送的组号以及组内编号。
步骤303、在偏移相角列表中确定出与组号以及组内编号对应的第一偏移相角序列。
步骤304、基于第一偏移相角序列配置RIS阵列中每个RIS阵元的偏移相角，以对RIS阵列进行预编码。
其中，关于步骤301-304的详细介绍可以参考上述实施例，本公开实施例在此不做赘述。
综上所述，在本公开实施例提供的预编码方法之中，会先确定出RIS阵列对应的偏移相角列表，其中，该偏移相角列表包括至少一行偏移相角序列，偏移相角序列包括RIS阵列中每个RIS阵元的偏移相角，每一行偏移相角序列用于使得RIS阵列沿一对反射角反射入射信号，每一行偏移相角序列对应一索引值。之后，RIS阵列会获取UE发送的第一索引值，并会确定出与该第一索引值对应的第一偏移相角序列，并会基于该第一偏移相角序列配置RIS阵列中每个RIS阵元的偏移相角，以对RIS阵列进行预编码。由此可知，本公开实施例之中，会预先确定偏移相角列表，以及基于该偏移相角列表来对RIS阵列进行预编码，复杂性较低，适用性较高。
图4为本公开实施例所提供的一种预编码方法的流程示意图，该方法由UE执行，如图4所示，该预编码方法可以包括以下步骤：
步骤401、确定RIS阵列对应的偏移相角列表，该偏移相角列表包括至少一行偏移相角序列，偏移相角序列包括RIS阵列中每个RIS阵元的偏移相角，其中，每一行偏移相角序列用于使得RIS阵列沿一对反射角反射入射信号，一对反射角包括水平维反射角和垂直维反射角，以及，每一行偏移相角序列对应一索引值。
其中，在本公开的一个实施例之中，该偏移相角列表可以是由RIS阵列建立后发送至UE的。在本公开的另一个实施例之中，该偏移相角列表可以是由基站建立后发送至UE的。
步骤402、确定最优偏移相角序列。
步骤403、向RIS阵列发送最优偏移相角序列对应的第一索引值。
以及，关于步骤401-403的详细介绍可以参考上述实施例，本公开实施例在此不做赘述。
综上所述，在本公开实施例提供的预编码方法之中，会先确定出RIS阵列对应的偏移相角列表，其中，该偏移相角列表包括至少一行偏移相角序列，偏移相角序列包括RIS阵列中每个RIS阵元的偏移相角，每一行偏移相角序列用于使得RIS阵列沿一对反射角反射入射信号，每一行偏移相角序列对应一索引值。之后，RIS阵列会获取UE发送的第一索引值，并会确定出与该第一索引值对应的第一偏移相角序列，并会基于该第一偏移相角序列配置RIS阵列中每个RIS阵元的偏移相角，以对RIS阵列 进行预编码。由此可知，本公开实施例之中，会预先确定偏移相角列表，以及基于该偏移相角列表来对RIS阵列进行预编码，复杂性较低，适用性较高。
图5为本公开实施例所提供的一种预编码方法的流程示意图，该方法由UE执行，如图5所示，该预编码方法可以包括以下步骤：
步骤501、确定RIS阵列对应的偏移相角列表，该偏移相角列表包括至少一行偏移相角序列，偏移相角序列包括RIS阵列中每个RIS阵元的偏移相角，其中，每一行偏移相角序列用于使得RIS阵列沿一对反射角反射入射信号，一对反射角包括水平维反射角和垂直维反射角，以及，每一行偏移相角序列对应一行索引值。
其中，在本公开的一个实施例之中，该偏移相角列表可以是由RIS阵列建立后发送至UE的。在本公开的另一个实施例之中，该偏移相角列表可以是由基站建立后发送至UE的。
步骤502、确定最优偏移相角序列。
步骤503、向RIS阵列发送最优偏移相角序列对应的第一行索引值。
以及，关于步骤501-503的详细介绍可以参考上述实施例，本公开实施例在此不做赘述。
综上所述，在本公开实施例提供的预编码方法之中，会先确定出RIS阵列对应的偏移相角列表，其中，该偏移相角列表包括至少一行偏移相角序列，偏移相角序列包括RIS阵列中每个RIS阵元的偏移相角，每一行偏移相角序列用于使得RIS阵列沿一对反射角反射入射信号，每一行偏移相角序列对应一索引值。之后，RIS阵列会获取UE发送的第一索引值，并会确定出与该第一索引值对应的第一偏移相角序列，并会基于该第一偏移相角序列配置RIS阵列中每个RIS阵元的偏移相角，以对RIS阵列进行预编码。由此可知，本公开实施例之中，会预先确定偏移相角列表，以及基于该偏移相角列表来对RIS阵列进行预编码，复杂性较低，适用性较高。
图6为本公开实施例所提供的一种预编码方法的流程示意图，该方法由UE执行，如图6所示，该预编码方法可以包括以下步骤：
步骤601、确定RIS阵列对应的偏移相角列表，偏移相角列表包括至少一行偏移相角序列，偏移相角序列包括RIS阵列中每个RIS阵元的偏移相角，其中，每一行偏移相角序列用于使得RIS阵列沿一对反射角反射入射信号，一对反射角包括水平维反射角和垂直维反射角，以及，偏移相角列表包括至少一组偏移相角序列，每组偏移相角序列包括相邻的至少一行偏移相角序列，每行偏移相角序列对应有组号及组内编号。
其中，在本公开的一个实施例之中，该偏移相角列表可以是由RIS阵列建立后发送至UE的。在本公开的另一个实施例之中，该偏移相角列表可以是由基站建立后发送至UE的。
以及，需要说明的是，在本公开的一个实施例之中，UE从RIS阵列或者基站接收到的偏移相角列表中可以自带每行偏移相角序列对应有组号及组内编号。在本公开的另一个实施例之中，UE从RIS阵列或者基站接收到的偏移相角列表中也可以不存在每行偏移相角序列对应有组号及组内编号，此时，UE可以对偏移相角列表中的每行偏移相角序列进行分组，并对每组偏移相角序列设置组号，其中，一组偏移相角序列包括相邻的至少一行偏移相角序列，之后，再对每组偏移相角序列中的各行偏移相角序列进行组内编号。以及，UE对每行偏移相角序列进行分组、设置组号、以及组内编号的方法可以参考上述实施例描述，本公开实施例在此不做赘述。
步骤602、确定最优偏移相角序列。
步骤603、向RIS阵列发送最优偏移相角序列对应的组号及组内编号。
以及，关于步骤601-603的详细介绍可以参考上述实施例，本公开实施例在此不做赘述。
综上所述，在本公开实施例提供的预编码方法之中，会先确定出RIS阵列对应的偏移相角列表，其中，该偏移相角列表包括至少一行偏移相角序列，偏移相角序列包括RIS阵列中每个RIS阵元的偏移相角，每一行偏移相角序列用于使得RIS阵列沿一对反射角反射入射信号，每一行偏移相角序列对应一索引值。之后，RIS阵列会获取UE发送的第一索引值，并会确定出与该第一索引值对应的第一偏移相角序列，并会基于该第一偏移相角序列配置RIS阵列中每个RIS阵元的偏移相角，以对RIS阵列进行预编码。由此可知，本公开实施例之中，会预先确定偏移相角列表，以及基于该偏移相角列表来对 RIS阵列进行预编码，复杂性较低，适用性较高。
图7为本公开实施例所提供的一种信号编解码装置700的结构示意图，如图7所示，该信号编解码装置700可以包括：
第一确定模块701，用于确定所述RIS阵列对应的偏移相角列表，所述偏移相角列表包括至少一行偏移相角序列，所述偏移相角序列包括所述RIS阵列中每个RIS阵元的偏移相角，其中，每一行偏移相角序列用于使得所述RIS阵列沿一对反射角反射入射信号，所述一对反射角包括水平维反射角和垂直维反射角，以及，每一行偏移相角序列对应一索引值；
获取模块702，用于获取UE发送的第一索引值；
第二确定模块703，用于在所述偏移相角列表中确定出与所述第一索引值对应的第一偏移相角序列；
配置模块704，用于基于所述第一偏移相角序列配置所述RIS阵列中每个RIS阵元的偏移相角，以对所述RIS阵列进行预编码。
综上所述，在本公开实施例提供的预编码装置之中，会先确定出RIS阵列对应的偏移相角列表，其中，该偏移相角列表包括至少一行偏移相角序列，偏移相角序列包括RIS阵列中每个RIS阵元的偏移相角，每一行偏移相角序列用于使得RIS阵列沿一对反射角反射入射信号，每一行偏移相角序列对应一索引值。之后，RIS阵列会获取UE发送的第一索引值，并会确定出与该第一索引值对应的第一偏移相角序列，并会基于该第一偏移相角序列配置RIS阵列中每个RIS阵元的偏移相角，以对RIS阵列进行预编码。由此可知，本公开实施例之中，会预先确定偏移相角列表，以及基于该偏移相角列表来对RIS阵列进行预编码，复杂性较低，适用性较高。
可选的，在本公开的一个实施例之中，所述第一确定模块，还用于：
由所述RIS阵列建立所述偏移相角列表；和/或
接收由基站发送的所述偏移相角列表。
可选的，在本公开的一个实施例之中，所述第一确定模块，还用于：
量化所述RIS阵列对应的水平维反射角和垂直维反射角以得到至少一对反射角；
基于入射信号的水平维入射角和垂直维入射角，确定出量化后的每对反射角对应的一对相移权向量，其中，所述一对相移权向量包括水平维相移权向量和垂直维相移权向量；
确定出每对相移权向量对应的每个RIS阵元的连续偏移相角；
对所述每对相移权向量对应的每个RIS阵元的连续偏移相角进行量化以得到每对相移权向量对应的每个RIS阵元的量化后偏移相角；
将所述每对相移权向量对应的每个RIS阵元的量化后偏移相角作为一偏移相角序列，以得到至少一个偏移相角序列；
对所述至少一个偏移相角序列按行进行排序，以建立所述偏移相角列表。
可选的，在本公开的一个实施例之中，所述RIS阵列为M×N阵列，M和N均为正整数；
所述第一确定模块，还用于：
以量化间隔
Figure PCTCN2021126840-appb-000004
量化水平维反射角，以量化间隔
Figure PCTCN2021126840-appb-000005
量化垂直维反射角，p，q为过采样因子。
可选的，在本公开的一个实施例之中，所述第一确定模块，还用于：
设置至少一个离散偏移相角；
利用所述至少一个离散偏移相角中与连续偏移相角之差的绝对值最小的离散偏移相角替换所述连续偏移相角。
可选的，在本公开的一个实施例之中，所述第一确定模块，还用于：
先按照所述偏移相角序列对应的水平维反射角的大小顺序进行第一次按行排序，再按照所述偏移相角序列对应的垂直维反射角的大小顺序对第一次按行排序之后的偏移相角序列中对应同一水平维反射角的偏移相角序列进行第二次按行排序；和/或
先按照所述偏移相角序列对应的垂直维反射角的大小顺序进行第一次按行排序，再按照所述偏移相角序列对应的水平维反射角的大小顺序对第一次按行排序之后的偏移相角序列中对应同一垂直维反射 角的偏移相角序列进行第二次按行排序。
可选的，在本公开的一个实施例之中，所述偏移相角列表中的每一行偏移相角序列对应一行索引值；
所述获取模块，还用于：
获取所述UE发送的第一行索引值。
可选的，在本公开的一个实施例之中，所述装置还包括：
对所述偏移相角列表中的偏移相角序列进行分组，并对每组偏移相角序列设置组号，其中一组偏移相角序列包括相邻的至少一行偏移相角序列；
对每组偏移相角序列中的各行偏移相角序列进行组内编号。
可选的，在本公开的一个实施例之中，所述获取模块，还用于：
获取所述UE发送的组号以及组内编号。
图8为本公开实施例所提供的一种信号编解码装置700的结构示意图，如图7所示，该信号编解码装置800可以包括：
第一确定模块801，用于确定所述RIS阵列对应的偏移相角列表，所述偏移相角列表包括至少一行偏移相角序列，所述偏移相角序列包括所述RIS阵列中每个RIS阵元的偏移相角，其中，每一行偏移相角序列用于使得所述RIS阵列沿一对反射角反射入射信号，所述一对反射角包括水平维反射角和垂直维反射角，以及，每一行偏移相角序列对应一索引值；
第二确定模块802，用于确定最优偏移相角序列；
发送模块803，用于向所述RIS阵列发送所述最优偏移相角序列对应的第一索引值。
综上所述，在本公开实施例提供的预编码装置之中，会先确定出RIS阵列对应的偏移相角列表，其中，该偏移相角列表包括至少一行偏移相角序列，偏移相角序列包括RIS阵列中每个RIS阵元的偏移相角，每一行偏移相角序列用于使得RIS阵列沿一对反射角反射入射信号，每一行偏移相角序列对应一索引值。之后，RIS阵列会获取UE发送的第一索引值，并会确定出与该第一索引值对应的第一偏移相角序列，并会基于该第一偏移相角序列配置RIS阵列中每个RIS阵元的偏移相角，以对RIS阵列进行预编码。由此可知，本公开实施例之中，会预先确定偏移相角列表，以及基于该偏移相角列表来对RIS阵列进行预编码，复杂性较低，适用性较高。
可选的，在本公开的一个实施例之中，所述第一确定模块，还用于：
获取由所述RIS阵列发送的所述偏移相角列表；
获取由基站发送的所述偏移相角列表。
可选的，在本公开的一个实施例之中，所述偏移相角列表中的每一行偏移相角序列对应一行索引值；
所述发送模块，还用于：
向所述RIS阵列发送所述最优偏移相角序列对应的第一行索引值。
可选的，在本公开的一个实施例之中，所述装置还用于：
对所述偏移相角列表中的偏移相角序列进行分组，并对每组偏移相角序列设置组号，其中一组偏移相角序列包括相邻的至少一行偏移相角序列；
对每组偏移相角序列中的各行偏移相角序列进行组内编号。
可选的，在本公开的一个实施例之中，所述发送模块，还用于：
向所述RIS阵列发送所述最优偏移相角序列对应的组号以及组内编号。
图9是本公开一个实施例所提供的一种用户设备UE900的框图。例如，UE900可以是移动电话，计算机，数字广播终端设备，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图9，UE900可以包括以下至少一个组件：处理组件902，存储器904，电源组件906，多媒体组件908，音频组件910，输入/输出(I/O)的接口912，传感器组件913，以及通信组件916。
处理组件902通常控制UE900的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件902可以包括至少一个处理器920来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件902可以包括至少一个模块，便于处理组件902和其他组件之间的交互。 例如，处理组件902可以包括多媒体模块，以方便多媒体组件908和处理组件902之间的交互。
存储器904被配置为存储各种类型的数据以支持在UE900的操作。这些数据的示例包括用于在UE900上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器904可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电源组件906为UE900的各种组件提供电力。电源组件906可以包括电源管理系统，至少一个电源，及其他与为UE900生成、管理和分配电力相关联的组件。
多媒体组件908包括在所述UE900和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括至少一个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的唤醒时间和压力。在一些实施例中，多媒体组件908包括一个前置摄像头和/或后置摄像头。当UE900处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件910被配置为输出和/或输入音频信号。例如，音频组件910包括一个麦克风(MIC)，当UE900处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器904或经由通信组件916发送。在一些实施例中，音频组件910还包括一个扬声器，用于输出音频信号。
I/O接口912为处理组件902和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件913包括至少一个传感器，用于为UE900提供各个方面的状态评估。例如，传感器组件913可以检测到设备900的打开/关闭状态，组件的相对定位，例如所述组件为UE900的显示器和小键盘，传感器组件913还可以检测UE900或UE900一个组件的位置改变，用户与UE900接触的存在或不存在，UE900方位或加速/减速和UE900的温度变化。传感器组件913可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件913还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件913还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件916被配置为便于UE900和其他设备之间有线或无线方式的通信。UE900可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件916经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件916还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，UE900可以被至少一个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
图10是本公开实施例所提供的一种网络侧设备1000的框图。例如，网络侧设备1000可以被提供为一网络侧设备。参照图10，网络侧设备1000包括处理组件1011，其进一步包括至少一个处理器，以及由存储器1032所代表的存储器资源，用于存储可由处理组件1022的执行的指令，例如应用程序。存储器1032中存储的应用程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外，处理组件1010被配置为执行指令，以执行上述方法前述应用在所述网络侧设备的任意方法，例如，如图1所示方法。
网络侧设备1000还可以包括一个电源组件1026被配置为执行网络侧设备1000的电源管理，一个有线或无线网络接口1050被配置为将网络侧设备1000连接到网络，和一个输入输出(I/O)接口1058。网络侧设备1000可以操作基于存储在存储器1032的操作系统，例如Windows Server TM，Mac OS XTM， Unix TM,Linux TM，Free BSDTM或类似。
上述本公开提供的实施例中，分别从网络侧设备、UE的角度对本公开实施例提供的方法进行了介绍。为了实现上述本公开实施例提供的方法中的各功能，网络侧设备和UE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。
上述本公开提供的实施例中，分别从网络侧设备、UE的角度对本公开实施例提供的方法进行了介绍。为了实现上述本公开实施例提供的方法中的各功能，网络侧设备和UE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。
本公开实施例提供的一种通信装置。通信装置可包括收发模块和处理模块。收发模块可包括发送模块和/或接收模块，发送模块用于实现发送功能，接收模块用于实现接收功能，收发模块可以实现发送功能和/或接收功能。
通信装置可以是终端设备(如前述方法实施例中的终端设备)，也可以是终端设备中的装置，还可以是能够与终端设备匹配使用的装置。或者，通信装置可以是网络设备，也可以是网络设备中的装置，还可以是能够与网络设备匹配使用的装置。
本公开实施例提供的另一种通信装置。通信装置可以是网络设备，也可以是终端设备(如前述方法实施例中的终端设备)，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，还可以是支持终端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。
通信装置可以包括一个或多个处理器。处理器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，网络侧设备、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，通信装置中还可以包括一个或多个存储器，其上可以存有计算机程序，处理器执行所述计算机程序，以使得通信装置执行上述方法实施例中描述的方法。可选的，所述存储器中还可以存储有数据。通信装置和存储器可以单独设置，也可以集成在一起。
可选的，通信装置还可以包括收发器、天线。收发器可以称为收发单元、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，通信装置中还可以包括一个或多个接口电路。接口电路用于接收代码指令并传输至处理器。处理器运行所述代码指令以使通信装置执行上述方法实施例中描述的方法。
通信装置为终端设备(如前述方法实施例中的终端设备)：处理器用于执行图1-图4a任一所示的方法。
通信装置为网络设备：收发器用于执行图5-图7任一所示的方法。
在一种实现方式中，处理器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，处理器可以存有计算机程序，计算机程序在处理器上运行，可使得通信装置执行上述方法实施例中描述的方法。计算机程序可能固化在处理器中，该种情况下，处理器可能由硬件实现。
在一种实现方式中，通信装置可以包括电路，所述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。本公开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(Gas)等。
以上实施例描述中的通信装置可以是网络设备或者终端设备(如前述方法实施例中的终端设备)，但本公开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。例如所述通信装置可以是：
(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，芯片包括处理器和接口。其中，处理器的数量可以是一个或多个，接口的数量可以是多个。
可选的，芯片还包括存储器，存储器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公开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所述的功能，但这种实现不应被理解为超出本公开实施例保护的范围。
本公开实施例还提供一种确定侧链路时长的系统，该系统包括前述实施例中作为终端设备(如前述方法实施例中的第一终端设备)的通信装置和作为网络设备的通信装置，或者，该系统包括前述实施例中作为终端设备(如前述方法实施例中的第一终端设备)的通信装置和作为网络设备的通信装置。
本公开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。
本公开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。所述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所述计算机程序时，全部或部分地产生按照本公开实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机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，所述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。所述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。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，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：本公开中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本公开实施例的范围，也表示先后顺序。
本公开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，本公开不做限制。在本公开实施例中，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。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本发明的其它实施方案。本公开旨在涵盖本发明的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本发明的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (22)

  1. 一种预编码方法，其特征在于，应用于RIS阵列，包括：
    确定所述RIS阵列对应的偏移相角列表，所述偏移相角列表包括至少一行偏移相角序列，所述偏移相角序列包括所述RIS阵列中每个RIS阵元的偏移相角，其中，每一行偏移相角序列用于使得所述RIS阵列沿一对反射角反射入射信号，所述一对反射角包括水平维反射角和垂直维反射角，以及，每一行偏移相角序列对应一索引值；
    获取用户设备UE发送的第一索引值；
    在所述偏移相角列表中确定出与所述第一索引值对应的第一偏移相角序列；
    基于所述第一偏移相角序列配置所述RIS阵列中每个RIS阵元的偏移相角，以对所述RIS阵列进行预编码。
  2. 如权利要求1所述的方法，其特征在于，所述确定所述RIS阵列对应的偏移相角列表的方法包括以下至少一种：
    由所述RIS阵列建立所述偏移相角列表；
    接收由基站发送的所述偏移相角列表。
  3. 如权利要求2所述的方法，其特征在于，所述由所述RIS阵列建立所述偏移相角列表，包括：
    量化所述RIS阵列对应的水平维反射角和垂直维反射角以得到至少一对反射角；
    基于入射信号的水平维入射角和垂直维入射角，确定出量化后的每对反射角对应的一对相移权向量，其中，所述一对相移权向量包括水平维相移权向量和垂直维相移权向量；
    确定出每对相移权向量对应的每个RIS阵元的连续偏移相角；
    对所述每对相移权向量对应的每个RIS阵元的连续偏移相角进行量化以得到每对相移权向量对应的每个RIS阵元的量化后偏移相角；
    将所述每对相移权向量对应的每个RIS阵元的量化后偏移相角作为一偏移相角序列，以得到至少一个偏移相角序列；
    对所述至少一个偏移相角序列按行进行排序，以建立所述偏移相角列表。
  4. 如权利要求3所述的方法，其特征在于，所述RIS阵列为M×N阵列，M和N均为正整数；
    所述量化所述RIS阵列对应的水平维反射角和垂直维反射角，包括：
    以量化间隔
    Figure PCTCN2021126840-appb-100001
    量化水平维反射角，以量化间隔
    Figure PCTCN2021126840-appb-100002
    量化垂直维反射角，p，q为过采样因子。
  5. 如权利要求3所述的方法，其特征在于，所述对所述每对相移权向量对应的每个RIS阵元的连续偏移相角进行量化以得到每对相移权向量对应的每个RIS阵元的量化后偏移相角，包括：
    设置至少一个离散偏移相角；
    利用所述至少一个离散偏移相角中与连续偏移相角之差的绝对值最小的离散偏移相角替换所述连续偏移相角。
  6. 如权利要求3所述的方法，其特征在于，所述对所述至少一个偏移相角序列按行进行排序的方法包括以下至少一种：
    先按照所述偏移相角序列对应的水平维反射角的大小顺序进行第一次按行排序，再按照所述偏移相角序列对应的垂直维反射角的大小顺序对第一次按行排序之后的偏移相角序列中对应同一水平维反射角的偏移相角序列进行第二次按行排序；
    先按照所述偏移相角序列对应的垂直维反射角的大小顺序进行第一次按行排序，再按照所述偏移相角序列对应的水平维反射角的大小顺序对第一次按行排序之后的偏移相角序列中对应同一垂直维反射角的偏移相角序列进行第二次按行排序。
  7. 如权利要求1所述的方法，其特征在于，所述偏移相角列表中的每一行偏移相角序列对应一行索引值；
    所述获取UE发送的第一索引值，包括：
    获取所述UE发送的第一行索引值。
  8. 如权利要求1所述的方法，其特征在于，所述方法还包括：
    对所述偏移相角列表中的偏移相角序列进行分组，并对每组偏移相角序列设置组号，其中，一组偏移相角序列包括相邻的至少一行偏移相角序列；
    对每组偏移相角序列中的各行偏移相角序列进行组内编号。
  9. 如权利要求8所述的方法，其特征在于，所述获取UE发送的第一索引值，包括：
    获取所述UE发送的组号以及组内编号。
  10. 一种预编码方法，其特征在于，应用于UE，包括：
    确定所述RIS阵列对应的偏移相角列表，所述偏移相角列表包括至少一行偏移相角序列，所述偏移相角序列包括所述RIS阵列中每个RIS阵元的偏移相角，其中，每一行偏移相角序列用于使得所述RIS阵列沿一对反射角反射入射信号，所述一对反射角包括水平维反射角和垂直维反射角，以及，每一行偏移相角序列对应一索引值；
    确定最优偏移相角序列；
    向所述RIS阵列发送所述最优偏移相角序列对应的第一索引值。
  11. 如权利要求10所述的方法，其特征在于，所述确定所述RIS阵列对应的偏移相角列表的方法包括以下至少一种：
    获取由所述RIS阵列发送的所述偏移相角列表；
    获取由基站发送的所述偏移相角列表。
  12. 如权利要求10所述的方法，其特征在于，所述偏移相角列表中的每一行偏移相角序列对应一行索引值；
    所述向所述RIS阵列发送所述最优偏移相角序列对应的第一索引值，包括：
    向所述RIS阵列发送所述最优偏移相角序列对应的第一行索引值。
  13. 如权利要求10所述的方法，其特征在于，所述方法还包括：
    对所述偏移相角列表中的偏移相角序列进行分组，并对每组偏移相角序列设置组号，其中，一组偏移相角序列包括相邻的至少一行偏移相角序列；
    对每组偏移相角序列中的各行偏移相角序列进行组内编号。
  14. 如权利要求13所述的方法，其特征在于，所述向所述RIS阵列发送所述最优偏移相角序列对应的第一索引值，包括：
    向所述RIS阵列发送所述最优偏移相角序列对应的组号以及组内编号。
  15. 一种预编码装置，其特征在于，包括：
    第一确定模块，用于确定所述RIS阵列对应的偏移相角列表，所述偏移相角列表包括至少一行偏移相角序列，所述偏移相角序列包括所述RIS阵列中每个RIS阵元的偏移相角，其中，每一行偏移相角序列用于使得所述RIS阵列沿一对反射角反射入射信号，所述一对反射角包括水平维反射角和垂直维反射角，以及，每一行偏移相角序列对应一索引值；
    获取模块，用于获取UE发送的第一索引值；
    第二确定模块，用于在所述偏移相角列表中确定出与所述第一索引值对应的第一偏移相角序列；
    配置模块，用于基于所述第一偏移相角序列配置所述RIS阵列中每个RIS阵元的偏移相角，以对所述RIS阵列进行预编码。
  16. 一种预编码装置，其特征在于，包括：
    第一确定模块，用于确定所述RIS阵列对应的偏移相角列表，所述偏移相角列表包括至少一行偏移相角序列，所述偏移相角序列包括所述RIS阵列中每个RIS阵元的偏移相角，其中，每一行偏移相角序列用于使得所述RIS阵列沿一对反射角反射入射信号，所述一对反射角包括水平维反射角和垂直维反射角，以及，每一行偏移相角序列对应一索引值；
    第二确定模块，用于确定最优偏移相角序列；
    发送模块，用于向所述RIS阵列发送所述最优偏移相角序列对应的第一索引值。
  17. 一种通信装置，其特征在于，所述装置包括处理器和存储器，所述存储器中存储有计算机程序， 所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如权利要求1至9中任一项所述的方法。
  18. 一种通信装置，其特征在于，所述装置包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如权利要求10至14中任一项所述的方法。
  19. 一种通信装置，其特征在于，包括：处理器和接口电路；
    所述接口电路，用于接收代码指令并传输至所述处理器；
    所述处理器，用于运行所述代码指令以执行如权利要求1至9中任一项所述的方法。
  20. 一种通信装置，其特征在于，包括：处理器和接口电路；
    所述接口电路，用于接收代码指令并传输至所述处理器；
    所述处理器，用于运行所述代码指令以执行如权利要求10至14任一所述的方法。
  21. 一种计算机可读存储介质，用于存储有指令，当所述指令被执行时，使如权利要求1至9中任一项所述的方法被实现。
  22. 一种计算机可读存储介质，用于存储有指令，当所述指令被执行时，使如权利要求10至14中任一项所述的方法被实现。
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