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1. 发明申请

US20130035084A1 ADAPTIVE RANDOM ACCESS CHANNEL RETRANSMISSION 有权
标题翻译：自适应随机访问通道恢复
公开(公告)号：US20130035084A1
公开(公告)日：2013-02-07
申请号：US13555083
申请日：2012-07-21
申请人： KEE-BONG SONG , Xiaowen Wang , Syed A. Mujtaba
发明人： KEE-BONG SONG , Xiaowen Wang , Syed A. Mujtaba
IPC分类号： H04W52/26 , H04W24/02
CPC分类号： H04W74/0833 , H04B17/318 , H04W52/146 , H04W52/241 , H04W52/367 , H04W52/48 , H04W52/50
摘要： A mobile wireless device adapts transmit power levels and number of retransmissions of a preamble sent to a wireless network. The mobile wireless device measures characteristics of a downlink signal received from the wireless network. The mobile wireless device transmits a series of preambles to the wireless network, each successive preamble having an increased power level, starting at a power level based on the measured received signal characteristics and on parameters received from the wireless network, up to a maximum transmit power level. When the transmit power level of the preamble exceeds the maximum transmit power level and when the measured downlink signal quality falls below a threshold, the mobile wireless device limits the number of preamble retransmission to less than an allowed maximum number of retransmissions. A minimum number of retransmissions is determined and adapted to higher values for larger measured values of downlink signal quality.
摘要翻译：移动无线设备适配发送功率电平和发送到无线网络的前导码的重传次数。移动无线设备测量从无线网络接收的下行链路信号的特性。移动无线设备向无线网络发送一系列前导码，每个连续的前同步码具有增加的功率电平，从基于所测量的接收信号特性的功率电平和从无线网络接收的参数开始，直到最大发射功率水平。当前导码的发射功率电平超过最大发射功率电平时，并且当所测量的下行链路信号质量低于阈值时，移动无线设备将前导码重传的数量限制为小于允许的最大重发次数。确定最小重传次数并适应较大的下行链路信号质量测量值的值。

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