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    • 2. 发明申请
    • SYSTEMS, APPARATUS AND METHODS FOR IMPROVING SYSTEM ACQUISITION PERFORMANCE IN MULTI-SIM WIRELESS DEVICES
    • 用于改善多SIM无线设备中的系统采集性能的系统,装置和方法
    • US20150271822A1
    • 2015-09-24
    • US14220593
    • 2014-03-20
    • QUALCOMM INCORPORATED
    • Bhaskara Viswanadham BatchuStanley Suyi TsaiPravir Kumar
    • H04W72/04H04B1/3816H04W24/02
    • H04W72/0453H04B1/3816H04J11/0069H04L27/2655H04W24/02H04W48/18H04W56/0035H04W88/06
    • Methods and apparatus for improving system acquisition performance in multi-SIM devices are provided. In one aspect, a method of acquiring a signal comprises defining a size of a frequency bin for a first radio access technology based on a frequency error for a second radio access technology. The method further includes determining that the signal is not acquirable using the defined size for a predetermined number of consecutive acquisition attempts. The method further includes adjusting the size of the frequency bin based on the determining. The method further includes determining whether the signal is not acquirable using the adjusted size. In one implementation, the method further includes identifying the frequency error for the second radio access technology. In one implementation, the adjusting the size of the frequency bin comprises disregarding the frequency error for the second radio access technology. In one implementation the adjusting the size of the frequency bin is based on a most recently received frequency error for the first radio access technology.
    • 提供了提高多SIM设备系统采集性能的方法和设备。 一方面,获取信号的方法包括基于第二无线电接入技术的频率误差来定义用于第一无线接入技术的频率仓的大小。 该方法还包括使用所定义的大小来确定信号是不可获取的,用于预定数量的连续采集尝试。 该方法还包括基于确定来调整频率仓的大小。 该方法还包括使用调整的大小来确定信号是否不可获取。 在一个实现中,该方法还包括识别第二无线电接入技术的频率误差。 在一个实现中,调整频率仓的大小包括忽略第二无线电接入技术的频率误差。 在一个实现中,调整频率仓的大小基于第一无线电接入技术的最近接收的频率误差。