专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2014057344A Random access structure for wireless network 有权
标题翻译：无线网络随机访问结构
公开(公告)号：JP2014057344A
公开(公告)日：2014-03-27
申请号：JP2013229623
申请日：2013-11-05
申请人： Texas Instruments Inc , テキサスインスツルメンツインコーポレイテッド
发明人： PIERRE BERTRAND , JING JIANG , KANGUDE SHANTANU , TARIK MUHAREMOVIC
IPC分类号： H04J11/00 , H04J13/00 , H04W72/04 , H04W74/08
摘要： PROBLEM TO BE SOLVED: To solve such a problem that a random access channel is intended to encompass a wider range of functionalities than in previous or current cellular networks, thus an expected load is increased, so that a more efficient random access method is needed.SOLUTION: A random access signal comprises a random access preamble signal selected from a set of random access preamble signals constructed by cyclically shifting selected root CAZAC sequences. The random access signal has a length of one or more transmission sub-frames, the length of the included random access preamble sequence is extended with the signal to provide excellent signal detection performance in larger cells and in higher interference environments. The random access signal includes a wide-band pilot signal facilitating base station estimation of up-link frequency response in some situations.
摘要翻译：要解决的问题为了解决随机接入信道旨在包括比以前的或当前的蜂窝网络更广泛的功能范围的问题，因此期望的负载增加，从而需要更有效的随机接入方法。解决方案：随机接入信号包括从通过循环移位所选根CAZAC序列构成的一组随机接入前导信号中选择的随机接入前导信号。随机接入信号具有一个或多个传输子帧的长度，所包含的随机接入前同步码序列的长度随信号而扩展，以便在较大的小区和较高的干扰环境中提供优异的信号检测性能。随机接入信号包括宽带导频信号，有助于在某些情况下基站估计上行链路频率响应。

IPRDB

热门服务

关于我们

友情链接

联系方式