Mode switch between SFN and PTP for multicast services in LTE networks  

作　　者：汪敏 冯春燕 张天魁 

机构地区：[1]Beijing Key Laboratory of Network System Architecture and Convergence,Beijing University of Posts and Telecommunications

出　　处：《Journal of Harbin Institute of Technology(New Series)》2012年第5期87-91,共5页哈尔滨工业大学学报（英文版）

基　　金：Sponsored by the National Key Technology R&D Program of China ( Grant No. 2010ZX03003-001-01);Fundamental Research Funds for the Central Universities

摘　　要：The multimedia broadcast and multicast services (MBMS) in 3GPP LTE is characterized by multicast broadcast single frequency network (MBSFN) operation. The multicast services are transmitted by single frequency network (SFN) mode, and the unicast services are delivered with point-to-point (PTP) mode. To minimize the demanded radio resources for multicast services in the LTE, a novel mode switch (MS) between SFN and PTP for multicast services is proposed. MS takes into account PTP mode for multicast services and the switch is based on the handover threshold. To solve the minimization problem, MS adapts the handover threshold with the difference in the demanded radio resources between SFN mode and PTP mode for multicast services. The simulation results show that the proposed MS achieves less demanded radio resources than SFN mode for all the multicast services.The multimedia broadcast and multicast services （MBMS） in 3GPP LTE is characterized by multicast broadcast single frequency network （MBSFN） operation. The multicast services are transmitted by single frequency network （SFN） mode, and the unicast services are delivered with point-to-point （PTP） mode. To minimize the demanded radio resources for multicast services in the LTE, a novel mode switch （MS） between SFN and PTP for multicast services is proposed. MS takes into account PTP mode for multicast services and the switch is based on the handover threshold. To solve the minimization problem, MS adapts the handover threshold with the difference in the demanded radio resources between SFN mode and PTP mode for multicast services. The simulation results show that the proposed MS achieves less demanded radio resources than SFN mode for all the multicast services.

关 键 词：multimedia broadcast and multicast services single frequency network point-to-point handover threshold 

分 类 号：TN929.53[电子电信—通信与信息系统]