Patent ID: 8750204
Filing Date: 2014-06-10
Classification: H04L,H04W

Abstract:
1. A method of transmitting user equipment (UE)-triggered channel state information (CSI) from a UE in a wireless communication system, the method comprising: transmitting a random access message including a preamble and access reason through a random access channel (RACH) or a CSI RACH to an eNode B (eNB) when a CSI transmission event is trigged by the UE, wherein the access reason indicates a request for a resource for a CSI transmission; receiving a random access response message including information regarding the resource allocated for the CSI transmission from the eNB in response to the transmission of the preamble and access reason of the random access message; and encoding CSI and UE identifier (UE ID) by channel-encoding after masking UE identifier (UE ID) bits to CSI bits, or masking the UE ID bits to channel-encoded CSI bits; and transmitting the encoded CSI and UE ID through the allocated resource to the eNB, wherein the encoded CSI and UE ID are transmitted through a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH) of the allocated resource.