Patent ID: 7058038

Claim:
A method of transmitting a message through a common packet channel (CPCH) of a communication system, comprising: receiving status information of each of a plurality of CPCHs from the system; transmitting a first preamble to the system, said first preamble having one of a plurality of signatures, where each of a plurality of scrambling codes used for the CPCH has a one-to-one correspondence to a signature; transmitting at least one second preamble to the system; and, transmitting the message to the system through at least one —CPCH, wherein a channelization code for a control part of the message is spread by a code C c =C 256,0 of Orthogonal Variable Spreading Factor (OVSF) codes and a data part of the message is spread by a code C d =C SF,k of the OVSF codes, and wherein SF is the spreading factor of the data part, and k=SF/y, wherein y is an integer greater than 0.