Telecommunications – Transmitter and receiver at separate stations – Having measuring – testing – or monitoring of system or part
Reexamination Certificate
2007-04-24
2007-04-24
Urban, Edward F. (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Having measuring, testing, or monitoring of system or part
C455S063100, C455S067130, C455S337000
Reexamination Certificate
active
10317706
ABSTRACT:
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.
REFERENCES:
patent: 6614776 (2003-09-01), Proctor, Jr.
patent: 6741867 (2004-05-01), Tetsuya
patent: 6748194 (2004-06-01), Oh et al.
patent: 2003/0065993 (2003-04-01), Kaji
patent: 1 024 634 (2000-08-01), None
patent: 2000-115260 (2000-04-01), None
patent: 2000-224250 (2000-08-01), None
patent: 2001-204072 (2001-07-01), None
TSG-RAN Working Group 4 Correction of AICH Performance. (Radio Meeting #17) R4-010593 May 21-25, 2001.
Miyazaki Shunji
Nakamura Takaharu
Dean Raymond S.
Fujitsu Limited
Katten Muchin & Rosenman LLP
Urban Edward F.
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