Patent ID: 7336599
Filing Date: 2008-02-26
Classification: H04B

Abstract:
1. A joint detection reception method, which is utilized irrespective of a length of an orthogonal code in a TD (Time Division)—CDMA (Code Division Multiple Access) communication system, to create a system matrix associated with a joint detection receiver in a same time slot of the TD-CDMA mobile communication system, the method comprising the steps of: a) performing repetition of all channelization codes created from different bursts until a length of individual channelization code blocks is equal to one of a maximum spreading factor and a predetermined value, and creating channelization code blocks having the same lengths; b) partitioning the channelization code blocks having same lengths into at least one sub-block in order to create channelization code blocks constructed in terms of minimum spreading factors of individual spreading factor sets; c) performing a convolution operation between at least one partitioned sub-block and a radio channel impulse response, and creating combined impulse responses; d) grouping the combined impulse responses into combined impulse response sub-block matrices, arranging the combined impulse response sub-block matrices each to be downshifted by an integer times a predetermined offset value, and constructing joint detection sub-block matrices; and e) arranging individual joint detection sub-block matrices to be downshifted by an integer times the maximum spreading factor, and constructing a joint detection system matrix.