Method and apparatus for testing a base station in a time divisi

Details Method and apparatus for testing a base station in a time divisi Method and apparatus for testing a base station in a time divisi

1993-12-07

1996-05-28

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 17, 370 953, 455 671, 455 674, 371 205, H04J 314

Patent

active

055219047

ABSTRACT:
In a base station of a mobile cellular telephone system of the type having time division multiple access (TDMA) channels, a radio frequency test loop is established between a predetermined downlink channel of a base station transmitter and a predetermined uplink channel of a base station receiver. The test loop is in real time, thereby eliminating the time offset of the radio channels used for communications. The radio frequency test loop includes a circuit for transposing the frequency of the carrier signal from the transmitter to a frequency that can be received by the receiver. The signal having the transposed frequency is used in tests for determining values such as bit error rate (BER), transmission signal level, or reception sensitivity.

REFERENCES:
patent: 4361904 (1982-11-01), Matsumura
patent: 4491973 (1985-01-01), Idol
patent: 4656651 (1987-04-01), Evans et al.
patent: 4688208 (1987-08-01), Kawaguchi
patent: 4860281 (1989-08-01), Finley et al.
patent: 5077783 (1991-12-01), Leppanen
patent: 5109535 (1992-04-01), Kume et al.
patent: 5291475 (1994-03-01), Brukkert
patent: 5337316 (1994-08-01), Weiss et al.

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