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CN-122001420-A - Signal transmission method, communication device, storage medium, and program product

CN122001420ACN 122001420 ACN122001420 ACN 122001420ACN-122001420-A

Abstract

A signal transmission method, a communication device, a storage medium and a program product are provided, the method comprising determining an array element in a mutual quality array, the array element in the mutual quality array being a partial array element in an antenna array of a first communication device, and transmitting a first signal through the mutual quality array based on hybrid beamforming. The inter-mass array can realize larger virtual aperture through fewer physical array elements, or the number of equivalent virtual array elements is generally larger than that of the physical array elements, so that the transmitter of the first signal is favorable for realizing the beam forming of more paths of signals by using fewer array elements, and the receiver of the first signal is favorable for realizing DOA estimation of more paths of signals by using fewer array elements, thereby improving the DOA estimation freedom.

Inventors

  • WAN TAO
  • HE JIA
  • WANG GUANGJIAN

Assignees

  • 华为技术有限公司

Dates

Publication Date
20260508
Application Date
20241105

Claims (16)

  1. 1. A signal transmission method for use with a first communication device, the method comprising: Determining array elements in a mutual mass array, wherein the array elements in the mutual mass array are part of array elements in an antenna array of the first communication device; and transmitting a first signal through the mutual mass array based on hybrid beamforming.
  2. 2. The method of claim 1, wherein the inter-matrix array comprises a first subarray and a second subarray, an array element spacing in the first subarray and an array element spacing in the second subarray being inter-matrix, the array elements in the inter-matrix array being associated with one or more of a number of array elements in the first subarray, a number of array elements in the second subarray, or a number of first power amplifiers PA, the first PA corresponding to a plurality of analog radio frequency links.
  3. 3. The method of claim 2, wherein the positions Ls of the array elements in the reciprocal array satisfy: L s ＝{((0,m 1 d 1 )+nd n )|m 1 ＝0,1,2,…,M 1 -1;n=0,1,2...,N-1} ∪{( ( 0,m 2 d 2 )+nd n ) | m 2 ＝0,1,2,…,M 2 -1;n＝0,1,2…,N-1}, Wherein M 1 represents the number of array elements in the first subarray, M 2 represents the number of array elements in the second subarray, M 1 ,M 2 is greater than or equal to 2, and M 1 ＜M 2 ,d 1 ＝M 2 λ/2,d 2 ＝M 1 λ/2,d n ＝[(M 2 -1)*M 1 +1]*λ/2,N represents the number of the first PA, N is greater than or equal to 2, and λ represents the wavelength of electromagnetic waves emitted via the array elements in the mutual mass array.
  4. 4. A method as claimed in claim 2 or 3, wherein the number of first PAs is associated with a first correspondence indicating a correspondence of a number of values of the number of array elements in the first subarray, a number of values of the number of array elements in the second subarray, and a number of values of the first PAs.
  5. 5. The method of claim 4, wherein the method further comprises: And transmitting first information, wherein the first information indicates one or more of the number of array elements in the first subarray, the number of array elements in the second subarray or the number of the first PAs.
  6. 6. The method of any one of claims 1 to 5, wherein the reciprocal mass array comprises a linear reciprocal mass array, an L-shaped reciprocal mass array, a T-shaped reciprocal mass array, or a reciprocal mass array.
  7. 7. A signal transmission method for use with a second communication device, the method comprising: Based on mixed beam forming, receiving a first signal sent by a mutual quality array, wherein array elements in the mutual quality array are part of array elements in an antenna array of a first communication device; And estimating the arrival direction of the first signal based on the mutual mass array.
  8. 8. The method of claim 7, wherein the inter-matrix array comprises a first subarray and a second subarray, the spacing of the array elements in the first subarray and the spacing of the array elements in the second subarray being inter-matrix, the array elements in the inter-matrix array being associated with one or more of a number of array elements in the first subarray, a number of array elements in the second subarray, or a number of first power amplifiers PA, the first PA corresponding to a plurality of analog radio frequency links.
  9. 9. The method of claim 8, wherein the positions L s of the array elements in the reciprocal array satisfy: L s ＝{((0,m 1 d 1 )+nd n )|m 1 ＝0,1,2,…,M 2 -1;n=0,1,2...,N-1} ∪{((0,m 2 d 2 )+nd n )|m 2 ＝0,1,2,…,M 1 -1;n=0,1,2...,N-1}, Wherein M 1 represents the number of array elements in the first subarray, M2 represents the number of array elements in the second subarray, M 1 ,M 2 is not less than 2, and M 1 ＜M 2 ,d 1 ＝m 2 λ/2,d 2 ＝m 1 λ/2,d n ＝[(M 2 -1)*M 1 +1]*λ/2,N represents the number of the first PA, N is not less than 2, and lambda represents the wavelength of electromagnetic waves emitted via the array elements in the mutual mass array.
  10. 10. The method of claim 8 or 9, wherein the number of first PAs is related to a first correspondence indicating a correspondence of a number of values of the number of array elements in the first subarray, a number of values of the number of array elements in the second subarray, and a number of values of the first PAs.
  11. 11. The method of claim 10, wherein the method further comprises: First information is received, the first information indicating one or more of a number of array elements in the first subarray, a number of array elements in the second subarray, or a number of the first PA.
  12. 12. The method of any one of claims 7 to 11, wherein the mutual mass array comprises a linear mutual mass array, an L-shaped mutual mass array, a T-shaped mutual mass array, or a mutual mass area array.
  13. 13. A communication device comprising means for implementing the method of any one of claims 1 to 6 or means for implementing the method of any one of claims 7 to 12.
  14. 14. A communications device comprising a processor for invoking a computer program or instructions in memory to cause the communications device to implement the method of any of claims 1 to 6 or to implement the method of any of claims 7 to 12.
  15. 15. A computer readable storage medium, characterized in that the storage medium has stored therein a computer program or instructions which, when executed, implement the method of any one of claims 1 to 6 or the method of any one of claims 7 to 12.
  16. 16. A computer program product, characterized in that it comprises a computer program or instructions which, when executed, implements the method according to any one of claims 1 to 6 or implements the method according to any one of claims 7 to 12.

Description

Signal transmission method, communication device, storage medium, and program product Technical Field The present application relates to the field of communications, and more particularly, to a signal transmission method, a communication device, a storage medium, and a program product. Background In a multiple-input multiple-output (multiple input multiple output, MIMO) system, beamforming techniques are used to spatially form one or more beams of signals by adjusting the phase and amplitude of the signals at each antenna element in an antenna array, pointing in a particular direction or user. The beamforming techniques are classified into analog beamforming (analog beamforming, ABF) techniques and digital beamforming (digital beamforming, DBF) techniques, depending on the location of the beamforming event. Digital beamforming can produce accurate beams, but each antenna maps a radio frequency link, which is relatively difficult to implement in hardware and has high cost. Analog phase shifters with lower cost are used for analog beamforming, the hardware structure is relatively simple, and the implementation cost is lower, but only the phase can be adjusted, but the amplitude cannot be adjusted, and the inaccuracy of the wave beam can be caused. The hybrid beamforming (hybrid beamforming, HBF) technique combines the advantages of both to achieve as full a digital beamforming effect as possible. The estimation of the direction of arrival (direction of arrival, DOA) of the signal refers to the processing of the received signal by the structure of the antenna array to obtain the direction of arrival of the signal. In the HBF system, how to improve the DOA estimation degree of freedom without increasing the complexity of the system is a problem to be solved. Disclosure of Invention The application provides a signal transmission method, a communication device, a storage medium and a program product, which are used for improving DOA estimation freedom degree in an HBF system without increasing system complexity. In a first aspect, the present application provides a signal transmission method, which may be performed by a first communication device, the method comprising determining an array element in a mutual quality array, the array element in the mutual quality array being part of an array element in an antenna array of the first communication device, and transmitting a first signal through the mutual quality array based on hybrid beamforming. In a possible implementation manner, the first communication device may be a terminal device, a component (such as a circuit, a chip system, etc.) configured in the terminal device, or a logic module or software capable of implementing all or part of the functions of the terminal device, which is not limited in this application. In another possible implementation manner, the first communication apparatus may be a network device, or may be a component (such as a circuit, a chip system, etc.) configured in the network device, or may be a logic module or software capable of implementing all or part of the functions of the network device, which is not limited by the present application. In the signal transmission method, when the hybrid beamforming technology is adopted to transmit the first signal, the first communication device may determine the inter-quality array from the antenna array, and transmit the first signal through the inter-quality array, where the inter-quality array may implement a larger virtual aperture through fewer physical array elements, or the number of equivalent virtual array elements is generally greater than that of the physical array elements, so that it is beneficial for a sender of the first signal to implement beamforming of more signals with fewer array elements, and for a receiver of the first signal to implement DOA estimation of more signals with fewer array elements, thereby improving DOA estimation freedom. Furthermore, when the first communication device transmits the first signal, part of array elements in the antenna array are used, which is favorable for further reducing the use of a radio frequency circuit and further reducing the complexity of a system. In a second aspect, the present application provides a signal transmission method, which is performed by a second communication device, and the method includes receiving, based on hybrid beamforming, a first signal transmitted through a mutual quality array, where an array element in the mutual quality array is a partial array element in an antenna array of the first communication device, and performing, based on the mutual quality array, DOA estimation on the first signal. In a possible implementation manner, the second communication device may be a terminal device, a component (such as a circuit, a chip system, etc.) configured in the terminal device, or a logic module or software capable of implementing all or part of the functions of the terminal device, which is not limited in th