Methods and apparatus for coordinating channel access to shared parallel data channels

  • US 6,404,756 B1
  • Filed: 11/03/2000
  • Issued: 06/11/2002
  • Est. Priority Date: 11/03/1999
  • Status: Expired due to Term
First Claim
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1. A communication node operating in a network whose nodes communicate over plural shared data channels, said communication node comprising:

  • a primary receiver and a secondary receiver, at least one of said primary and secondary receivers being tunable to the plural shared data channels to receive information messages from other nodes, and at least one of said primary and secondary receivers being tunable to a reservation channel to monitor channel access reservation messages that are exchanged between nodes on the reservation channel;

    wherein said communication node continuously monitors the reservation channel during periods when channel access reservation messages are expected by tuning one of the primary receiver and the secondary receiver to the reservation channel, and wherein said communication node maintains an availability status of each neighboring node and each of the plural shared data channels determined from the channel access reservation messages received on the reservation channel by said primary receiver or said secondary receiver; and

    wherein channel access reservation messages are not expected during transmission of a broadcast message on one of the plural shared data channels, and neither said primary receiver nor said secondary receiver monitors the reservation channel when said primary receiver is engaged in transferring an information message on one of the shared data channels and said secondary receiver is simultaneously receiving the broadcast message on another of the shared data channels.

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