Method for transmitting and receiving data of multi-antenna multiplexed apparatus based on layer exchange

Abstract

The present invention discloses a multiple-antenna multiplexing device based on layer switching, a data transmitting method and a data receiving method which are realized through the device, wherein, the multiple-antenna multiplexing device comprises the following components: a transmitter which is used for executing processing and pre-encoding to the code flow according to the V-matrix feed backby the receiver and transmitting the code flow after pre-encoding to the receiver through at least one antenna; and the receiver which is used for processing and analyzing the code flow from the transmitter for obtaining the V-matrix which needs to be feed back and a U-matrix that executes preprocessing and feeding back the V-matrix to the transmitter. Through the device according to the invention, the communication system can split the difference between the capability and the throughput rate thereby increasing the whole capability of the communication system.

Description

technical field [0001] The present invention relates to the communication field, and more specifically relates to a multi-antenna multiplexing device based on layer switching, a data sending method, and a data receiving method. Background technique [0002] In the study of next-generation wireless communication, along with the development of multimedia services and some entertainment and games, we found that the WCDMA R99 transmission rate of 2Mbps and the peak rate of R5HSDPA of 14.4Mbps may not be able to meet people's future needs. The International Organization for Standardization 3GPP put forward a new challenge after careful discussion, that is, to realize the data transmission with a peak rate of 100Mbps in 2007. This is a huge challenge, that is to say, a new technology that is 7 to 50 times the transmission rate of the current system must be designed within two years, and it has good backward compatibility to protect the existing investment. This new system is call...

AI Technical Summary

Problems solved by technology

But it requires a relatively large feedback overhead of CQI, and has higher requirements on the channel environment

Compared with PARC, PGRC (per group rate control) reduces the feedback overhead, and its performance is basically close to that of PARC, but it has a certain limitation on the number of convection streams. The same channel environment is also an important factor affecting its performance.

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