Apparatus and method for synchronization between scanning interval and multicast interval in broadband wireless access system

摘要

Scanning cycle synchronization of a multicast service in a broadband wireless access system is provided. Multicast group information of a multicast group to which a Mobile Station (MS) belongs is received at the MS from an application server. A scanning cycle pattern and a scan offset of a multicast service corresponding to the multicast group are determined. A scanning cycle of the multicast is set according to the scanning cycle pattern and the scan offset. Scanning and reception of multicast data are performed according to the scanning cycle.

主权项

1. A method for operation of a mobile station (MS) in a wireless access system, the method comprising the steps of:
receiving an application layer message, which is related to a session management, from an application server, wherein the application layer message includes information corresponding to a multicast group to which the MS belongs; determining a scanning cycle of the multicast service based on the information included in the application layer message, wherein the information comprises a scanning cycle pattern and a scan offset; and performing scanning and receiving multicast data for the multicast group to which the MS belongs according to the scanning cycle, wherein the scan offset is generated based on at least one of a connection identifier (CID) for the multicast group, an Internet protocol (IP) address for the multicast data, and an identifier (ID) of the multicast group, and wherein the scanning cycle pattern includes at least one of a scanning cycle total length, a scanning interval length, and a scheduling interval length.