FAST POWER CONTROL TO MOBILE STATIONS SIMULTANEOUSLY INITIATING A RANDOM ACCESS TRANSMISSION

摘要

A method for providing fast power control to mobile stations simultaneously initiating a random access transmission to a base station in a communication system is disclosed. The mobile station does not wait for an acknowledgement of successful detection prior to transmitting the header/message portion of the access Message and responding to power control bits on the associated F-PCCH sub-channel. The mobile will, however, abort transmission if no detection acknowledgement is received on a forward common channel within a predetermined timeout. If the base station detects an access preamble in any R-RACH slot, it starts a power control bit stream on the associated F-PCCH sub-channel.