Apparatus and method for selecting, releasing, and changing MCBCS channel of mobile station in broadband wireless access system

A method of selecting a MultiCast and BroadCast Service (MCBCS) channel of a Mobile Station (MS) by an Access Service Network-Gateway (ASN-GW) in a Broadband Wireless Access (BWA) system, the method comprising:

• upon receiving a Dynamic Service Addition (DSA) trigger request message including a broadcast channel IDentifier (ID) of the MS from a policy server, extracting a Media Access Control (MAC) layer name tag mapped to the broadcast channel ID from a mapping table;
• transmitting a DSA request message including the extracted MAC layer name tag to the MS;
• and
• upon receiving a DSA response message from the MS, transmitting a DSA trigger response message to the policy server.

A method of selecting a MultiCast and BroadCast Service (MCBCS) channel of a Mobile Station (MS) by an MCBCS server in a Broadband Wireless Access (BWA) system, the method comprising:

• upon receiving a channel selection request message for selecting a specific channel from the MS, extracting a Multicast and Broadcast Service_Zone (MBS_Zone) IDentifier (ID), which is mapped to a Base Station (BS) ID and a broadcast channel ID included in the selection request message, by searching a mapping table;
• generating a new channel selection request message including the extracted MBS_Zone ID and transmitting the new channel selection request message to a policy server;
• and
• upon receiving a channel selection response message including information indicating a success or failure of the channel selection request from the policy server, transmitting the channel selection response message to the MS.

A method of selecting a MultiCast and BroadCast Service (MCBCS) channel of a Mobile Station (MS) in a Broadband Wireless Access (BWA) system, the method comprising:

• requesting, by the MS, an MCBCS server to select a specific channel;
• requesting, by the MCBCS server, a policy server to select the channel of the MS;
• requesting, by the policy server, an Access Service Network-Gateway (ASN-GW) to perform a Dynamic Service Addition (DSA) trigger;
• and
• performing, by the ASN-GW, a DSA process with the MS.

A method of selecting a MultiCast and BroadCast Service (MCBCS) channel of a Mobile Station (MS) in a Broadband Wireless Access (BWA) system, the method comprising:

• upon receiving a request to select a specific channel, transmitting a channel selection request message for selecting the channel to an MCBCS server;
• transmitting to an Access Service Network-Gateway (ASN-GW) a Dynamic Service Addition (DSA) request message including unique authentication information of the MS with respect to the channel;
• and
• receiving a DSA response message including a MAC layer name tag corresponding to the unique authentication information from the ASN-GW.

A method of changing a MultiCast and BroadCast Service (MCBCS) channel by a Mobile Station (MS) in a Broadband Wireless Access (BWA) system, the method comprising:

• upon receiving a request to change a specific channel to a new channel, transmitting a channel change request message for changing the specific channel to an MCBCS server;
• transmitting to an Access Service Network-Gateway (ASN-GW) a Dynamic Service Deletion (DSD) request message including a Media Access Control (MAC) layer name tag for the specific channel, and receiving a DSD response message from the ASN-GW;
• and
• transmitting to the ASN-GW a Dynamic Service Addition (DSA) request message including unique authentication information of the MS with respect to the new channel, and receiving a DSA response message including a MAC layer name tag corresponding to the unique authentication information from the ASN-GW.