Samsung Electronics Co., Ltd.

Electronics and Telecommunications Research Institute

Il Min Kim

Youn Ok Park

Young Jo Bang

Jee Hwan Ahn

Chang Wahn Yu

Hoon Ki Lee

Jun-Woo Kim

Dae Ho Kim

Seung Jae Bahng

Kyung Yeol Sohn

Jung Pil Choi

Hyeong Sook Park

Seungjae Bahng

Young Ha Lee

In a multi-input multi-output communication system receiving signals transmitted through a plurality of transmission antennas by using a plurality of reception antennas, a matrix determining a position of a symbol to be detected from a received signal is calculated at a first symbol detection step, and from the subsequent step, a matrix at the current step is acquired through a simple relationship from the matrix calculated at the previous step to determine a position of a symbol to be detected.

Method and apparatus for signal detection based on MMSE in MIMO communication system

Disclosed is a method of detecting signals at a receiver of a communication system with a multiple input multiple output antenna. With the signal detection method, a square of the distance between a received signal vector and a channel status-considered transmission symbol vector is calculated first, and the square of the distance is then classified into first and second components. The first component is minimized to calculate a plurality of first soft symbol estimates. A solution set of the first component is calculated on the basis of the plurality of first soft symbol estimates. The second component is minimized to calculate a plurality of second soft symbol estimates. A solution set of the second component is calculated on the basis of the plurality of second soft symbol estimates. A final solution set is calculated by doing the sum of the first component solution set and the second component solution.

Signal detection method and receiver

The present invention relates to a transmission symbol detection method in a multiple antenna system. In the present invention, when a channel matrix is estimated through channel estimation, a receiving side calculates a Q matrix and an R matrix through QR decomposition that is more simplified than a typical QR decomposition from an augmented channel matrix that includes the estimated channel matrix. In addition, the receiving side detects symbols having the minimum Euclidean metric by using the two matrixes, as transmission symbols.

Method for detecting transmission symbols in multiple antenna system

Growing community of inventors

Suwon-si, South Korea

Il Min Kim