Signal receiving and transmitting device and method adopting smart antenna

Abstract

The embodiment of the invention provides a signal receiving and transmitting device and method adopting a smart antenna. The signal receiving and transmitting device comprises an antenna array, a client spatial correlation matrix unit, a weight vector solution unit, a broadcast beam forming switching unit, a service beam forming switching unit and a weighting network forming unit, wherein the antenna array comprises N antenna units; each antenna unit is connected with M weighters; the client spatial correlation matrix unit is used for determining a formed weighting network having M*N weighters; the weight vector solution unit is connected with the client spatial correlation matrix unit, and is used for computing a weighting network weight matrix based on the weighting network, and computing the weight vector of a client according to the weighting network weight matrix; in the broadcast beam forming switching unit, a high-gain dual-polarized antenna is adopted, and the weight value of the high-gain dual-polarized antenna is set; in the service beam forming switching unit, a transposed matrix of the weight vector is multiplied with a switching matrix to obtain a service beam weight vector; and in the weighting network forming unit, broadcast beam forming is implemented in a broadcast beam time slot based on the weight value of the high-gain dual-polarized antenna, and service beam forming is implemented in a service time slot based on a service beam weight vector.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a signal transceiving device and method using a smart antenna. Background technique [0002] With the popularity of mobile communications, spectrum has become an increasingly valuable resource. On the basis of the existing time division multiple access (TDMA, Time Division Multiple Access), frequency division multiple access (FDMA, Frequency Division Multiple Access) or code division multiple access (CDMA, Code Division Multiple Access) multiplexing method, the smart antenna ( SA (Smart Antenna) technology introduces the fourth dimension multiple access multiple access method - Space Division Multiple Access (SDMA, Space Division Multiple Access), so that users can still use their own data in the same time slot, same frequency or same address code The spatial propagation path is distinguished, thereby expanding the capacity of the mobile communication system exponentially. [...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a signal transceiving device and method using a smart antenna, which solves the problem that in the prior art, the service beamforming and the broadcasting beamforming are quite different or inconsistent, which greatly affects the TD-SCDMA Defects in network coverage and quality, to achieve consistency between service beamforming and broadcast beamforming

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