Hybrid precoding method, base station, electronic equipment and storage medium
A technology of precoding and precoding matrix, which is applied in the field of communication, can solve the problem of high complexity of hybrid precoding schemes, achieve low complexity and reduce power consumption
Active Publication Date: 2020-02-28
WUXI BUPT SENSING TECH & IND ACADEMY
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[0005] Embodiments of the present invention provide a hybrid precoding method, base station, electronic equipment, and storage medium, which are used to solve the technical problem of high complexity of the hybrid precoding scheme in the prior art
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[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
[0040] In the traditional MIMO precoding structure (full digital precoding), each antenna at the transmitting end needs to be equipped with dedicated baseband and radio frequency (RF) link hardware with high power consumption. In particular, in millimeter wave (mmW) systems using large-scale antennas, the problem of excessive device power c...
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The embodiment of the invention provides a hybrid precoding method, a base station, electronic equipment and a storage medium. The method comprises the following steps: determining an analog domain precoding matrix based on a specific radio frequency link selection and matching method of an antenna; determining a digital domain precoding matrix according to the analog domain precoding matrix and the channel matrix; and determining a hybrid precoding matrix according to the analog domain precoding matrix and the digital domain precoding matrix. According to the hybrid precoding method, the basestation, the electronic equipment and the storage medium provided by the embodiment of the invention, the specific hybrid precoding scheme of the partially connected adaptive antenna is adopted, thecomplexity in a large-scale antenna scene is lower, the system uses fewer devices, the power consumption is reduced, and the advantages of a partial connection structure relative to a full connectionstructure are maintained.
Description
technical field [0001] The present invention relates to the field of communication technology, and in particular to a hybrid precoding method, a base station, electronic equipment and a storage medium. Background technique [0002] The mixed precoding structure of analog domain and digital domain can decompose the original high-dimensional digital domain precoding structure into smaller-sized structural modes, reduce the use of RF and other devices, reduce power consumption, and make the millimeter-wave massive MIMO system Low-cost, low-complexity implementation becomes possible. [0003] In the prior art, a fully connected hybrid precoding structure is usually used. When the system sends K stream data, the digital precoding matrix is The encoded data of the output K streams pass through RF links (a total of K RF links), and pass through MK phase shifters (PS) and M accumulators, and are finally sent out by M (M>K) antennas. It can be seen that compared with the tradition...
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IPC IPC(8): H04B7/0456
CPCH04B7/0456Y02D30/70
Inventor 李立华田辉卢光延
Owner WUXI BUPT SENSING TECH & IND ACADEMY