CAJ | 학술논문

多媒体广播多播业务(MBMS)是3GPP-R6版本中定义的一种典型的广播、多播业务.随着技术的演进,在LTE系统中提出了增强的MBMS,即e-MBMS业务.针对e-MBMS业务,提出了一种有效的技术解决方案.该方案可看作下行发射分集、基于DoA的波束赋形与HARQ技术的结合.同时,仿真结果也表明,该方案相对于单独的发射分集来说能带来显著的性能增益.
다매체엄파다파업무(MBMS)시3GPP-R6판본중정의적일충전형적엄파、다파업무.수착기술적연진,재LTE계통중제출료증강적MBMS,즉e-MBMS업무.침대e-MBMS업무,제출료일충유효적기술해결방안.해방안가간작하행발사분집、기우DoA적파속부형여HARQ기술적결합.동시,방진결과야표명,해방안상대우단독적발사분집래설능대래현저적성능증익.
@@@@Multimedia broadcast/multicast service(MBMS)is one typical service defined in 3GPP Release 6. In Long Term Evolution(LTE),evolved(e)-MBMS has also been defined to enhance the MBMS transmission. In this paper,an efficient scheme applicable to single-cell point-to-multipoint e-MBMS transmission is proposed. It can be seemed as the combinations of downlink transmit diversity,Direction of Arrival(DoA)based beam-form-ing and hybrid-ARQ(HARQ)retransmission. Simulation results show the significant performance improvement compared with pure downlink transmit diversity scheme.