Abstract: A wireless communication device and method which includes the introduction of a auxiliary receiver or transceiver which is included in a base station or mobile terminal in addition to a transceiver used to communicate between devices. The auxiliary receiver or transceiver serves to monitor substantially continuously the noise conditions on available communication channels other than the channel currently being utilized for communication between devices. Whenever the noise conditions on the current channel goes above a preset threshold level, for example, the base station or mobile terminal is informed by virtue of the operation of the auxiliary receiver or transceiver of the best alternative channel to which to change.
Abstract: A cellular communications system comprising;
a mobile unit which designates an active set of base stations;
a base station; and
a base station controller which puts the base stations in the active set in common channel soft handoff.
Type:
Grant
Filed:
July 13, 1998
Date of Patent:
April 10, 2001
Assignee:
Qualcomm Incorporated
Inventors:
Edward G. Tiedemann, Jr., Sandip Sarkar
Abstract: A network system for mobile radio communication includes a network constituted by a server unit and a client unit, a radio connection unit connected to a communication network, a public radio base station installed in a cell, and a mobile radio terminal which establishes a radio channel with the public radio base station while moving. The network system performs data communication between the server unit and the mobile radio terminal. Each of the server unit and the mobile radio terminal includes a buffer memory and an auxiliary storage unit which hold data.
Abstract: A system and method for improving the accuracy of a location measurement within a telecommunications system is disclosed. An elliptical search area is defined about an estimated mobile terminal location within the telecommunications system. The elliptical area is an optimum area for locating the mobile terminal, with size, eccentricity, and orientation of the ellipse being determined by the configuration of base stations, the mobile terminal's position, a desired probability of coverage, and the known measurement errors in the quantities measured by the ALI technique.