Method and system for determining direction of transmission...

Details Method and system for determining direction of transmission... Method and system for determining direction of transmission...

2007-10-09

2007-10-09

Issing, Gregory C. (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Directive

Beacon or receiver

C342S437000, C455S562100

Reexamination Certificate

active

11250915

ABSTRACT:
A method for determining direction of transmission using an antenna array having a number of panels is disclosed. Each panel is configured to receive signals. According to one aspect of the method, each of the panels is directed to receive signals from a transmitting node. For each panel, a first table having data representing received signal power difference between the panel and a first neighboring panel and a second table having data representing received signal power difference between the panel and a second neighboring panel are built. The panel with the maximum received power is identified. For the identified panel, a first gain table and a second gain table corresponding to its first and second neighboring panels are searched to identify a first transmission angle and a second transmission angle, if any. A transmission angle relative to the transmitting node is determined using the first and second transmission angles.

REFERENCES:
patent: 4062015 (1977-12-01), Litva et al.
patent: 4929958 (1990-05-01), Hodel et al.
patent: 5095535 (1992-03-01), Freeburg
patent: 7042394 (2006-05-01), Sayers

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