发明名称 |
Apparatus and method for discriminating information transmitted using radio signal |
摘要 |
A transmission circuit transmits a connection request including a "signature" to a base station. The demodulator demodulates the AICH for transmitting a notification corresponding to the connection request. When requested communications are enabled, the AICH transmits the "signature". A multiplier multiplies a demodulation signal by the "signature". A voltage computation unit converts the output of the multiplier into a voltage value. An integrator integrates the voltage value computed by the voltage computation unit for each received symbol for the respective symbols corresponding to the "signature". A threshold generation unit adaptively selects one of a threshold determined based on the noise of a transmission path or a threshold determined based on the receiving power. If the output of the integrator is larger than the selected threshold, it is determined that the communications have been enabled.
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申请公布号 |
US2003148737(A1) |
申请公布日期 |
2003.08.07 |
申请号 |
US20020317706 |
申请日期 |
2002.12.12 |
申请人 |
MIYAZAKI SHUNJI;NAKAMURA TAKAHARU |
发明人 |
MIYAZAKI SHUNJI;NAKAMURA TAKAHARU |
分类号 |
H04B1/707;H04B7/26;H04W74/08;(IPC1-7):H04B17/00;H04B1/16 |
主分类号 |
H04B1/707 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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