发明名称 |
METHOD AND APPARATUS FOR DEMODULATING PHYSICAL RANDOM ACCESS CHANNEL SIGNAL |
摘要 |
Embodiments of the present invention provide a method and an apparatus for demodulating a physical random access channel signal. The method includes: acquiring a down-sampling sequence of a PRACH demodulation signal, and acquiring a power sequence of the down-sampling sequence; determining a position of a sounding reference signal sampling point in the down-sampling sequence according to the power sequence; and eliminating the sounding reference signal sampling point in the down-sampling sequence according to the position of the sounding reference signal sampling point, so as to perform PRACH coherent detection on a down-sampling sequence obtained after the sounding reference signal sampling point is eliminated. In the method and the apparatus for demodulating a physical random access channel signal in the embodiments of the present invention, interference from a sounding reference signal can be restrained and false alarms in PRACH detection can be reduced. |
申请公布号 |
US2015263838(A1) |
申请公布日期 |
2015.09.17 |
申请号 |
US201514723597 |
申请日期 |
2015.05.28 |
申请人 |
HUAWEI TECHNOLOGIES CO., LTD. |
发明人 |
Xu Xinyu;Guo Changyu;Su Wei |
分类号 |
H04L5/00;H04L27/26;H04L12/815;H04W74/08 |
主分类号 |
H04L5/00 |
代理机构 |
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代理人 |
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主权项 |
1. A method for demodulating a physical random access channel (PRACH) signal, comprising:
acquiring a down-sampling sequence of a PRACH demodulation signal, and acquiring a power sequence of the down-sampling sequence; determining a position of a sounding reference signal sampling point in the down-sampling sequence according to the power sequence; and eliminating the sounding reference signal sampling point in the down-sampling sequence according to the position of the sounding reference signal sampling point, so as to perform PRACH coherent detection on a down-sampling sequence obtained after the sounding reference signal sampling point is eliminated. |
地址 |
Shenzhen CN |