Patent ID: 7944903

Claim:
A method for multi-cell joint-detection in a time-slotted CDMA system, comprising steps of: A. performing a multiple code set channel estimation on received signal data and obtaining channel estimation results of a home cell and of neighboring cells; B. adjusting the channel estimation results of the home cell and/or the neighboring cells or the estimation result of a combined channel response of the home cell and the neighboring cells according to a comparative delay difference between signals of users in different cells; wherein, step B comprises: B1. setting a total length Ln of the channel estimation results of different cells; B2. obtaining a comparative delay difference ΔT n between signals of the users in a neighboring cell and in the home cell and rounding the comparative delay difference ΔT n and obtaining a standard delay difference ΔT n ′; B3. intercepting the channel estimation result of each user in the cell from the whole channel estimation result of the home cell and from the whole channel estimation result of the neighboring cell respectively; and B4. modifying the channel estimation results of the home cell and/or neighboring cells or the estimation result of the combined channel response according to the intercepting manner of the user channel estimation result and the comparative delay difference ΔT n ; and C. performing a joint-detection according to the estimation result of the combined channel response obtained by adjusting the channel estimation results of the users in different cells or according to the estimation result of the combined channel response and obtaining detection data.