Mobile communication system with cell-site switching for intra-c

Details Mobile communication system with cell-site switching for intra-c Mobile communication system with cell-site switching for intra-c

1993-07-09

1995-05-30

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

379 60, 455 331, 455 341, H04J 316

Patent

active

054208637

ABSTRACT:
In a TDMA cellular mobile communication system, incoming signals from the public switched network are converted by speech coder/data compressor units of a MTSO (mobile telephone switching office) to low-bit-rate signals and combined into a first TDM signal for transmission to a base station. The components of the first TDM signal are respectively routed according to a channel assignment signal and fed into desired modulators which are periodically activated according to the channel assignment signal to transmit signals on assigned channels to mobile units. Signals from the mobile units are received by demodulators at the base station and combined into a second TDM signal which is transmitted to the MTSO. The components of the second TDM signal are routed according to the channel assignment signal to appropriate speech decoder/data expander units for conversion to the original high-bit-rate signals for transmission to the network.

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European Search Report No. EP 93111040.7.
Fumiaki Ishino et al., "Mobile Communication Switching System For voice/Nonvoice Services", IEEE Globe Com '91, pp. 1485-1489.

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