Patent ID: 8483107

Claim:
A method of acquiring a resource allocation of a control channel in a wireless communication system, carried in a user equipment, comprising: receiving a first resource allocation of a control channel on a first downlink channel in a first subframe; acquiring a resource region of the control channel in a second subframe based on the first resource allocation of the control channel; acquiring a resource region of a second downlink channel in the second subframe based on the resource region of the control channel; and receiving a second resource allocation of the control channel on a third downlink channel in the second subframe, the third downlink channel being indicated by the second downlink channel, wherein the first downlink channel is a Physical Broadcast Channel (PBCH), the second downlink channel is a Physical Downlink Control Channel (PDCCH), the third downlink channel is a Physical Shared Channel (PDSCH) and the control channel is a Physical Hybrid-ARQ Indicator Channel (PHICH) carrying a Acknowledgement (ACK)/Not-Acknowledgement (NACK) signal for Hybrid-Automatic Repeat Request (HARQ).