William R. Meszko - Fort Worth TX Graham G. Haddock - Bedford TX
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
H04B 144 H04B 138
US Classification:
455 78
Abstract:
Briefly, according to the invention, a multi-unit communication device having a transceiver unit 108 and a control unit 104 is provided. The transceiver unit 108 transmits and receives information signals having digital and analog portions. The control unit 104 provides for operator interface to the communication device. The communication between the transceiver unit 108 and the control unit 104 is conducted on a single pair of wires 112 using ISDN format.
Apparatus And Methods For Providing Wireless Communication To A Sectorized Coverage Area
Ralph A. Kamin - Bedford TX Graham Haddock - Bedford TX
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
H04B 7216
US Classification:
370335
Abstract:
A transmitter (300) is utilized to provide wireless communication in a sectorized coverage area. The transmitter (300) incorporates a hybrid matrix (303) and an inverse hybrid matrix (306) to combine input control signals (315) and traffic signals (316). The hybrid matrix (303) transforms the control signals (315) and traffic signals (316) into output signals which each contain a portion of the control signals (315) and traffic signals (316). The outputs from the hybrid matrix (303) are amplified by amplifiers (319), and the outputs from the amplifiers (319) are then inverse transformed by the inverse hybrid matrix (306). The inverse transform matrix (306) recombines the portions of the control signals (315) and traffic signals (316) originally input to the hybrid matrix (303), and the resulting signals are transmitted to mobile stations (203-205 and 208) in sectorized coverage areas (S1. sub. A and S1. sub. B) using sector antennas (320).