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    • 1. 发明授权
    • Mobile station apparatus, base station apparatus, wireless communication system, and wireless communication method
    • 移动台装置,基站装置,无线通信系统以及无线通信方法
    • US09001754B2
    • 2015-04-07
    • US13388912
    • 2010-07-30
    • Yasuyuki KatoKatsunari UemuraShohei Yamada
    • Yasuyuki KatoKatsunari UemuraShohei Yamada
    • H04W4/00H04W36/00
    • H04W36/0072
    • Provided are a mobile station apparatus, a wireless communication system, and a wireless communication method that can improve reliability of handover while efficiently and early completing the handover. A mobile station apparatus 100 that switches base station apparatuses 200a and 200b to communicate with by handover includes: receiving an HO Command message including scheduled uplink transmission information from the base station apparatus of a handover source 200a; performing uplink transmission to the base station apparatus of a handover destination 200b based on the scheduled uplink transmission information; and executing handover in accordance with a random access procedure if a response is not received from the base station apparatus of a handover destination 200b with respect to a single time or plural times of the uplink transmission.
    • 提供一种能够在有效地提前完成切换的同时提高切换的可靠性的移动站装置,无线通信系统和无线通信方法。 通过切换来切换基站装置200a,200b进行通信的移动站装置100包括:从切换源200a的基站装置接收包括调度的上行链路发送信息的HO命令消息; 基于所调度的上行链路传输信息,向切换目的地200b的基站装置执行上行传输; 并且如果没有从移动目的地200b的基站装置相对于单次或多次上行链路传输接收到响应,则根据随机接入过程执行切换。