Patent ID: 6577609
Filing Date: 2003-06-10
Classification: H04L,H04W

Abstract:
A method of operating a packet data communications network including a plurality of access points and a plurality of remote mobile wireless units, at least two of the mobile units being capable of communicating with at least one of the access points, and when located within a predetermined range there from, being associated with a single one of such access points, comprising:establishing an association between the mobile units and the access points utilizing a packet frame addressing protocol including a multicast address; receiving in one of the access points at least two distinct sequences of packets addressed to at least two mobile units respectively associated with the access point; forming a frame in the access point, with a multicast address including the address of at least two of the mobile units, and including in the data field of the frame unicast packets addressed to each of at least two of the mobile units; and transmitting the frame to the mobile units by the one access point.