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Method and apparatus for determining alternative second stationary access point in response to detecting impeded wireless connection

  • US 6,188,681 B1
  • Filed: 04/01/1998
  • Issued: 02/13/2001
  • Est. Priority Date: 04/01/1998
  • Status: Expired due to Term
First Claim
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1. A method of operating a data communications network including a plurality of access points operatively connected to a host computer and a plurality of remote mobile wireless units, at least one of the remote units located within communication range of at least two access points and normally associated with and in communication with one of said at least two access points, comprising:

  • (a) establishing communication and association between a first remote unit and a first access point;

    (b) determining, in said first remote unit, that communication between the first remote unit and the first access point has been impeded;

    (c) receiving in said first remote unit announcement messages broadcast over the airwaves, each message having an identification of particular ones of said remote units that have data messages waiting for transmission to said particular ones of said remote units;

    (d) determining, in said first remote unit, the identity of the access point sending the announcement message; and

    (e) sending from a said remote unit a message including a request that said remote unit associate with the access point determined to be sending the announcement message.

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