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    • 52. 发明授权
    • Uplink synchronization request method in mobile communication system, CDMA allocation IE thereof, and apparatus using the same
    • 移动通信系统中的上行链路同步请求方法,CDMA分配IE以及使用该移动通信系统的装置
    • US08503404B2
    • 2013-08-06
    • US12304672
    • 2007-03-20
    • Sung-Kyung KimKwang-Jae LimChul-Sik YoonJee-Hwan Ahn
    • Sung-Kyung KimKwang-Jae LimChul-Sik YoonJee-Hwan Ahn
    • H04B7/216H04J3/06
    • H04W28/26H04W56/0075
    • The present invention relates to an uplink synchronization request method in a mobile communication system, a CDMA allocation information element structure thereof, and an apparatus using the same. For this purpose the uplink synchronization request method includes: when uplink traffic is generated, determining whether an uplink synchronization error occurs; when the uplink synchronization error occurs, calculating a timing adjustment value; and transmitting a bandwidth request code including the calculated timing adjustment value to a base station and performing a bandwidth request. According to the present invention, the PSS compares a reference adjustment value and an arrival time of a downlink preamble to calculate uplink synchronization timing and synchronize an uplink of the PSS that requests bandwidth allocation through a bandwidth request ranging process to thereby maximize resource use efficiency in the uplink synchronization.
    • 本发明涉及移动通信系统中的上行链路同步请求方法,其CDMA分配信息元素结构及其使用方法。 为此,上行链路同步请求方法包括:当产生上行流量时,确定是否发生上行链路同步错误; 当发生上行链路同步错误时,计算定时调整值; 以及将包括所计算的定时调整值的带宽请求代码发送到基站并执行带宽请求。 根据本发明,PSS比较参考调整值和下行链路前导码的到达时间,以计算上行链路同步定时,并通过带宽请求测距过程同步请求带宽分配的PSS的上行链路,从而最大化资源使用效率 上行同步。