METHOD AND APPARATUS FOR DETERMINATING ACTIVE CHANNELISATION CODES OF DOWNLINK IN TD-CDMA MOBILE COMMUNICATION SYSTEMS

摘要

The present invention in a mobile communication system divided into a plurality of code channels each having a unique channel code, time slots on the radio channel frame, is assigned to the user terminal to transmit and receive the base station and the data in the assigned time slot at least one the active channelization codes including channelization codes and channelization codes other user terminals that use discloses a method and apparatus for searching by the user terminal. A user terminal may set the channel code combinations including channelization codes to be searched in the number that is determined in advance, and detects code channel data corresponding to the channel code of the channel code combination from the received signals for the code channel data measuring code power values, and compared to the set value determined in advance of the code power values, and determines the channel code having the code power values ​​greater than the set value to the active code channel. This invention improves the performance of the joint detection by finding the channel code to other user terminals without using a separate signaling. ; Coupled detector (joint detector), a time division code division multiple access mobile communication system, an active code channel of