Patent ID: 7995613

Claim:
A method of performing a control operation for channel allocation in a communication network comprising a mobile terminal and a base station, each of the mobile terminal and the base station including a medium access control sub-layer, and upper layers and lower layers of the medium access control sub-layer, the method comprising: transmitting, in order to perform a call service, a channel request message from the mobile terminal to request channel allocation from the base station, wherein the channel request message is transmitted from the medium access control sub-layer of the mobile terminal to the medium access control sub-layer of the base station and wherein the channel request message comprises a first region for identifying a service type for which the channel allocation is requested, a reserved region, and a second region for identifying the channel request message; receiving in the mobile terminal a channel request confirm message from the medium access control sub-layer of the base station, wherein the channel request confirm message is transmitted from the base station in response to the channel request message requesting the channel allocation; and receiving in the mobile terminal a channel request response message from the medium access control sub-layer of the base station, wherein the channel request response message is used for allocating a channel to the mobile terminal, wherein the channel is allocated by the base station to the mobile terminal in accordance with the channel request response message.