×

Providing roaming capability for mobile computers in a standard network

  • US 6,006,090 A
  • Filed: 04/28/1993
  • Issued: 12/21/1999
  • Est. Priority Date: 04/28/1993
  • Status: Expired due to Term
First Claim
Patent Images

1. In a computer network running under a network operating system, said network operating system providing fault-tolerant internet routing of network communications between nodes and requiring that a network ID of a node remain constant for the duration of a session, said nodes including a plurality of mobile computing devices and said network including a wired network and a plurality of access points providing wireless access of said mobile computing devices to said wired network, at least some of said access points having different network IDs, a method of providing a capability of said mobile computing devices to roam during a session by changing access points to said network, comprising the steps of:

  • programming said mobile computing devices so as to appear to said network as virtual routers able to change access points during a session;

    wherein said virtual routers connect one subnet to one other subnet, said one subnet being connected to a mobile computing device and having a fixed network ID and said other subnet, through said fault-tolerant routing, being connected to a selectable access point and therefore having a variable network ID.

View all claims
  • 21 Assignments
Timeline View
Assignment View
    ×
    ×