Multi-cell Joint Detection Method for Slot CDMA System

摘要

The present invention relates to a multi-cell joint detection method. A joint detection method based on multi-cell structure information is provided aiming at interferences between intra-frequency neighboring cell signals in a slot CDMA system. Steps are as follows: obtaining a channel estimation result of each neighboring cell by using multiple code set channel estimation method; grouping the code channels of each neighboring cell and performing the joint detection by using the channel estimation result and the code channel grouping result so as to output the detected data. Grouping method includes grouping based on a cell to which a code channel belongs, grouping based on the strength of the code channel power or amplitude, grouping based on the strength of the code channel correlation, and grouping using the combination of the above. This method makes full use of structure information of multiple cell signals, highly restrains the multi-address interference between intra-frequency neighboring cells and greatly improves the system performance when the system works in intra-frequency neighboring cells. This method can be used in the slot CDMA system or the wireless communication system adopting a similar signal structure.