Patent ID: 7382761
Filing Date: 2008-06-03
Classification: H04W

Abstract:
1. A method for transmitting physical common packet channels having power bias, comprising: transmitting code division multiple access physical common packet channels; indicating an acquisition in a down-link physical common packet channel by a base station for an access prefix transmitted by user equipment; and transmitting conflict detection prefix by the user equipment to the base station by first power having a first power bias magnitude ΔPa-c with power of the access prefix which is a last one accessed successfully; receiving acquisition acknowledgement for the conflict detection prefix by the base station; and transmitting a first time slot of a power control prefix by the user equipment by a second power having a second power bias magnitude ΔPa-p with power of the access prefix of a last successful access, time slots subsequent to the first time slot being power adjusted based on a closed-loop power control.