华为CDMA2000系统中的导频集相互转换功能

导频集之间的相互转换 T_ADD T_DROP Pilot 1 导频强度 Pilot 2 T_TDROP T_TDROP 相邻集 候选集 激活集 候选集 相邻集 TIME 1 2 3 4 5 6 7 8 CDMA 核心技术 This graph illustrates the soft handoff process. The steps shown in this diagram are: Pilot 2>T_ADD.MS sends PSMM (Pilot Strength Measurement Message) and adds Pilot 2 to the Candidate Set. Pilot 2>Pilot1+T_COMP*0.5. MS sends another PSMM. BTS decides to add Pilot 2 to the Active Set and sets up the soft handoff. MS receives message and moves Pilot 2 to the Active Set. Pilot 1

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