Problem Statement and Requirement: Mobile Multicast

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Presentation transcript:

Problem Statement and Requirement: Mobile Multicast H. Deng, P.Yang, Q. Wu denghui@chinamobile.com

Profile of Mobile IPTV What’s means of MMA Reference: ITU-T Focus Group on IPTV

QoE/QoS for Mobile IPTV Total Multicast bandwidth: Access Node ability Current available bandwidth: Access Node aware Connection Admission Control: available resource Network Attachment Control: privilege user Packet loss/Priority: Time of Handover Synchronization: Stream synchronization Notification: Reference: ITU-T Focus Group on IPTV

Mobile IPTV security requirement IPTV architecture shall be robust against denial of service attacks targeting any multicast mechanisms. Multicast system architecture shall provide a mechanism of multicast protocol adjacency authentication in order to establish a reliable peer. Multicast system architecture shall provide an admission control mechanism to regulate any multicast events. Multicast system architecture shall be independent of adjacent domain such that it shall not affect the adjacent multicast domain without permission. Multicast system architecture shall provide a mechanism to check integrity of multicast contents before service delivery such that it prevents unauthorized contents from becoming the content source. Reference: ITU-T Focus Group on IPTV

Use of MIP6 for multicast based Mobile IPTV Bandwidth efficiency: bidirectional tunneling overhead and latency Packet loss/Priority: Mobile IPv6 handover Synchronization: all the nodes in Mobile IPv6 and Mobile IPTV have to be synchronized, PMIP does require synchronization between MAG and LMA. Notification: both happen in MIP6 and Mobile IPTV.

Issue about mobile multicast In the case of mobile node frequently joins and quits from the multicast group, [MBMS] may experience overload for each network entity such as access gateway and broadcast/multicast server.

Conclusion Multicast mobility for mobility network and Mobile IPTV services have been discussed. Impacts on Mobile IPv6 were also discussed.