Beam codebook generating method, beam searching method and relevant device

Abstract

The embodiment of the invention discloses a beam codebook generating method, a beam searching method and a relevant device. The beam codebook generating method comprises the following steps of: calculating a first array response factor of a standard beam according to the quantity of actually-generated beam signal channels, and calculating a second array response factor of the standard beam according to the quantity of pre-set target beam signal channels; carrying out radiation power normalization on the first array response factor so as to obtain a first radiation factor of the standard beam, and carrying out the radiation power normalization on the second array response factor so as to obtain a second radiation factor of the standard beam; normalizing the first radiation factor and the second radiation factor, so as to obtain a beam codebook of the standard beam; and rotating the obtained beam codebook of the standard beam, so as to obtain a beam codebook of the other beam except the standard beam in the target beams. With the adoption of the beam codebook generating method provided by the invention, all the beam channels can be used, and the realization difficulty of hardware can be reduced.

Description

technical field [0001] The present invention relates to the communication field, in particular to a beam codebook generation method, a beam search method and related devices. Background technique [0002] In the beamforming system, at the transmitting end, the transmitted signal is multiplied by the transmitting weight vector w and then sent to the wireless channel through different antenna elements. At the receiving end, the received signal of each antenna element passes through the receiving weight c vector The weighted summation is sent to the signal processing module. Target beam forming is divided into adaptive beam forming technology and beam switching technology. Adaptive beamforming technology is to obtain the optimal beam pattern, that is, the antenna weight vector w, after a series of calculations on the signals received by the array antenna, and use it for communication. Although adaptive beamforming can obtain the theoretical optimum, due to its high computatio...

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Problems solved by technology

[0010] It can be seen from the above that when the beam codebook is calculated by formula (1), in order to realize the beam search, it is necessary to perform individual switch control on each antenna element of the phased array antenna until all antenna elements are in the Open state, which undoubtedly increases the difficulty of hardware implementation, which is not conducive to the implementation of algorithms

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