Netwave Technologies Limited

William N Baugh

David B Rosen

Philip H Belanger

A network with wireless links is a dynamic learning system which allows a mobile (wireless) unit to determine which access point (wired) unit provides the mobile unit with the best communications as the mobile unit roams within an area and from area to area. As a mobile unit enters a new area, it scans the area to find an access point unit. After the mobile unit is verified by the access point unit, the mobile unit receives updated information about other access points in the area, including information indicating which access point units are within wireless transmission range of the mobile unit as well as multiple values indicating a communication range for a particular access point unit to the mobile unit. The information is updated as the system gathers new information through the mobile units and access point units within the system area. The more mobile units that enter and leave the area, the more information is gathered by the access point units functioning in the system and the more information the system learns. A mobile unit can also decide to switch to a new access point unit when the quality of service degrades by accessing information about access point units within the system.

Dynamic wireless local area network with interactive communications

A wireless network is initialized by communications between mobile units forming an ad hoc network or by communications between a mobile unit and an access point unit. Mobile units transmit announcements in order to establish a communication link. To ensure the announcements are received, the mobile units scan different frequencies at various times using various hop sequences. Once communication is established, one mobile unit adopts the hop frequency of the other mobile unit according to a comparison between the hop frequencies of the two units. Multiple mobile units initialize to form ad hoc networks in similar manner.

Ad hoc initialization for wireless local area network

A wireless network transmits information to mobile units which indicate communication ranges of particular access point units. Each mobile unit scans traffic on the network communications channel (typically frequency hopping radio transmissions using spread spectrum). As a mobile unit leaves one area and enters another area of the network, access point units in the new area transmit information, which the mobile unit receives. The transmission includes information indicating which access point units are within radio range of the mobile unit as well as multiple values indicating a communication range for a particular access point unit to the mobile unit. The mobile unit uses this information to establish communication with desired access point units.

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Milpitas, CA, United States of America

William N Baugh