Communication network having a plurality of bridging nodes which transmit a beacon to terminal nodes in power saving state that it has messages awaiting delivery

CAFC
  • US 6,374,311 B1
  • Filed: 04/14/1998
  • Issued: 04/16/2002
  • Est. Priority Date: 10/01/1991
  • Status: Expired due to Fees
First Claim
Patent Images

1. A communication network supporting wireless communication of messages, said communication network comprising:

  • a first terminal node having a wireless receiver operable in a normal state;

    a second terminal node having a wireless receiver operable in a power saving state;

    an access point that attempts to immediately deliver messages destined for the first terminal node;

    the access point attempts to deliver messages destined for the second terminal node by transmitting at predetermined intervals beacons that identify that a message awaits delivery;

    the second terminal node synchronizes operation of its wireless receiver to receive the beacons from the access point; and

    the second terminal node determines from the received beacons that it has a message awaiting delivery and directs further operation of its wireless receiver to receive the message.

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