Failure redundancy between modem interface cards and outdoor units in a wireless communication system

  • US 6,577,863 B2
  • Filed: 02/15/2001
  • Issued: 06/10/2003
  • Est. Priority Date: 02/15/2001
  • Status: Expired due to Term
First Claim
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1. A wireless communication system base station comprising both primary components and standby components for transmitting and receiving data in a plurality of sectors in a coverage area, the system comprising:

  • a plurality of primary modem interface cards configured to modulate and demodulate data;

    a plurality of primary outdoor units, each coupled to one of the primary modem interface cards and configured to transmit and receive modulated data between one of the plurality of primary modem interface cards and one of a plurality of sectors in a coverage area;

    a first standby modem interface card configured to modulate and demodulate data and to replace a failed one of the plurality of primary modem interface cards;

    a plurality of standby outdoor units, each configured to transmit and receive modulated data between the first standby modem interface card and one of the plurality of sectors in the coverage area;

    a controller interface card configured to select one of the plurality of standby outdoor units associated with a failed one of the plurality of primary outdoor units; and

    a redundancy card configured to route modulated data between the first standby modem interface card and the selected one of the plurality of standby outdoor units.

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