Method for requesting bandwidth by message having variable format
A method for requesting a bandwidth by a message having a variable format is disclosed. The method includes determining a bandwidth request type according to a size of an uplink bandwidth requested by a mobile station, generating a bandwidth request message having a header format according to the determined bandwidth request type, and transmitting the bandwidth request message to a base station. The determined bandwidth request type is one of a bandwidth request per connection, a bandwidth request per Quality of Service (QoS), and a bandwidth request per mobile station.
1. A method for requesting a bandwidth by a mobile station, the method comprising:
acquiring, by the mobile station, index parameter information related to a bandwidth request for requesting uplink bandwidth from a communication with a base station, wherein the index parameter information is determined by considering a QoS parameter and is related to a size of the bandwidth request;
transmitting a bandwidth request code to the base station;
receiving an uplink resource allocation according to the index parameter information from the base station;
transmitting the bandwidth request having the size corresponding to the index parameter information;
transmitting a dynamic service change request (DSC-REQ) message including at least one changed QoS parameter of a new service flow to the base station, after the new service flow has been created; and
receiving a dynamic service change response (DSC-RSP) message including new index parameter information from the base station in response to the DSC-REQ message,
wherein the new index parameter information includes at least one new index determined by considering the at least one changed QoS parameter.
2. The method according to claim 1 , wherein the QoS parameter comprises a grant scheduling type, a maximum latency, a minimum reserved traffic rate, and a priority.
3. A mobile station for requesting a bandwidth in a broadband wireless access system, the mobile station comprising:
a processor;
a transmission module configured to transmit a radio signal externally under the control of the processor; and
a reception module configured to receive a radio signal externally under the control of the processor,
wherein the processor acquires index parameter information related to a bandwidth request for requesting uplink bandwidth from a communication with a base station through the transmission module and the reception module, wherein the index parameter information is determined by considering a QoS parameter and is related to a size of the bandwidth request, and the processor controls the transmission module to transmit a bandwidth request code to the base station and to transmit the bandwidth request having the size corresponding to the index parameter information when an uplink resource allocation according to the index parameter information is received from the base station,
wherein the processor further controls a dynamic service change request (DSC-REQ) message including at least one changed QoS parameter of a new service flow to be transmitted to the base station via the transmission module after creating the new service flow, and controls a dynamic service change response (DSC-RSP) message including new index parameter information to be received from the base station in response to the DSC-REQ message, and
wherein the new index parameter information includes at least one new index determined by considering the at least one changed QoS parameter.
4. The mobile station according to claim 3 , wherein the QoS parameter comprises a grant scheduling type, a maximum latency, a minimum reserved traffic rate, and a priority.