Patent ID: 8059606

Claim:
A method of transmitting channel quality information (CQI) in a mobile communications system, the method comprising: periodically checking whether a request for reporting the channel quality information is received from a network, wherein the request is transmitted from the network for a report of channel quality wherein the request is received through a High Speed-Shared Control Channel (HS-SCCH), wherein an identifier of a corresponding terminal is also received from the network through the HS-SCCH, and wherein the identifier of the corresponding terminal is a HS-DSCH Radio Network Temporary Identifier (H-RNTI); and transmitting the channel quality information to the network after the request is received according to the checking step, wherein the channel quality information is transmitted to the network through a random access channel (RACH) procedure, wherein the channel quality information is included in a medium access control protocol data unit (MAC PDU) of a RACH message, wherein the MAC PDU including the CQI is transmitted to the network through a High Speed-Downlink Shared Channel (HS-DSCH), wherein a format of the MAC PDU transmitted through the HS-DSCH is determined by the H-RNTI received through the HS-SCCH, and wherein the RACH message is transmitted in a transmission time interval (TTI) of every 2 ms wherein the MAC PDU comprises: a TCTF (Type Channel Type Field) which used to indicate a type of logical channel; a terminal ID to identify a channel quality measurement terminal; and an indicator in a preamble of the MAC PDU to indicate the RACH message is transmitted in the transmission time interval (TTI) of every 2 ms.