At+t Corp.

Lucent Technologies Inc.

Vinko Erceg

Lawrence Joel Greenstein

Giovanni Vannucci

Peter Frank Driessen

Ta-Shing Chu

Robert S Roman

Martin V Clark

Anthony Joseph Rustako, Jr

Robert Stephen Roman

Anthony Joseph Rustako

A system and method for statistically modeling the operation of a directional terminal antenna in a wireless link. When using a directional terminal antenna, received power may be enhanced by as much as the antenna gain. In local scattering, however, the enhancement will be smaller. The system and method model this decrement, known as the gain reduction factor, &Dgr;, for fixed suburban paths, based on angle-of-arrival measurements. The system and method also provide the capability to statistically model the transmission performance of a directional terminal antenna in a wireless link while analyzing influences of antenna height, antenna beamwidth, distance and season.

Method and system for determining gain reductions due to scatter on wireless paths with directional antennas

A wireless communications system includes a number of clusters of repeaters wherein all repeaters within a cluster arc connected to a common hub via respective millimeter-wave radio links. Wireless signals received by the repeaters from end-user devices are transparently carried by the millimeter-wave radio links to respective hubs that act as concentrators for the repeaters. The hubs may be linked to a wireless network base station (in an outdoor setting) or alternatively to a server or a PBX (in an indoor environment) via a high-speed transmission facility, such as a fiber optic cable that is thus shared by all the repeaters.

Method and system for connecting cells and microcells in a wireless

A pole antenna of a hand-held, portable communication device, such as a cellular telephone, is maintained in a substantially vertical orientation. An antenna mast provides a support structure for the antenna. A pivot pin couples a medial portion of the antenna mast to a housing of the communication device. The pivot pin allows movement of the antenna mast about an axis of rotation. A weight is fixedly attached to the lower end of the antenna mast. The action of gravity acting on the weight maintains the antenna mast in a substantially vertical orientation as the housing of the communication device is tilted at an angle.

Apparatus for maintaining antenna polarization in portable communication

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Roselle Park, NJ, United States of America

Vinko Erceg