1
James M Williams, John P Lodwig: Method of providing wireless local loop operation with local mobility for a subscribed unit. Motorola, Raymond J Warren, Anthony G Sitko, Raymond A Jenski, December 12, 1995: US05475735 (206 worldwide citation)

Mobility is provided for wireless local loop radiotelephone systems by providing the home access network of a subscriber unit with a home access number. Upon registration of the subscriber unit with its home access network, the home access number is transmitted to the subscriber unit for storage the ...


2
Alfred B Wieczorek: Beacon based packet radio standby energy saver. Motorola, Anthony G Sitko, Jeffrey G Toler, December 10, 1996: US05584048 (106 worldwide citation)

A method of conserving battery energy within two-way radios by periodically de-activating the radios for relatively short time periods. The transmission and reception of communication requests are synchronized to occur during concurrent periods of activation. Following receipt of a communication req ...


3
Louis D Finkelstein, Daniel P Brown, Larry C Puhl: Method for key management of point-to-point communications. Motorola, Anthony G Sitko, April 25, 1995: US05410602 (96 worldwide citation)

A method of secure key distribution in a communication system having a plurality of subscriber units and an infrastructure communication center is provided. A first subscriber unit sends a request to the infrastructure communication center for a secure communication link with a second subscriber uni ...


4
Gerald P Labedz, Mark T Ahlenius, Robert T Love: Method and apparatus for displaying information in a communication system. Motorola, Anthony G Sitko, Jeffrey G Toler, March 4, 1997: US05608854 (72 worldwide citation)

A method and apparatus for understanding information relating to communication system performance, including the dynamic nature of the system is provided. Elements of the system are represented (102, 110) as various shapes (30, 32, 40) defined by an number of different parameters on a display device ...


5
Jeffrey D Bonta: Method of performing handoff in a cellular communication system. Motorola, Anthony G Sitko, July 11, 1995: US05432843 (71 worldwide citation)

The method consists of analyzing a handoff request received from a source base station at a source base site controller (BSC). If the handoff request contains a preferred base site list (is from a MAHO environment) the request is forwarded to the mobile switching center. If the handoff request does ...


6
Eugene J Bruckert, Michael D Kotzin: Reduced interference through offset frequency partitioning. Motorola, Anthony G Sitko, July 4, 1995: US05430761 (63 worldwide citation)

A method of reducing interference within a cellular system (10) by partitioning a designated frequency spectrum within a service coverage area (.0.1, .0.2, or .0.3) into a first and at least second spectrum inclusive of the designated frequency spectrum, each with an associated power level, and offs ...


7
David E Borth, John R Haug, Phillip D Rasky: Method of registering/-reassigning a call in a dual mode communication network. Motorola, Anthony G Sitko, Jeffrey G Toler, November 12, 1996: US05574973 (61 worldwide citation)

Registration operates by sensing (106) the availability of a first communication system. A quality factor of a channel of the system is measured (111). A channel of the first system is selected if the quality factor of the channel exceeds a threshold (113). If selected, the subscriber attempts to re ...


8
Dennis R Schaeffer, Mark T Ahlenius: Communication system resource allocation method. Motorola, Anthony G Sitko, October 3, 1995: US05455821 (59 worldwide citation)

A method of allocating communication resources in a communication system includes retrieving (404) from the communication system a communication system resource allocation. An allocation parameter is set to an initial value (406) and communication resources are randomly selected from cells (414). A ...


9
Robert L Palandech, Wayne H Bradley, George F Opas, James E Mitzlaff: Apparatus and method for providing a baseband digital error signal in an adaptive predistorter. Motorola, Anthony G Sitko, January 23, 1996: US05486789 (48 worldwide citation)

The present invention provides an apparatus (200) and method (500) for providing a baseband digital error signal in an adaptive predistorter. A carrier cancellation circuit (202) provides a difference (212) between a first signal (208) based on an amplifier output and second signal (210) based on a ...


10
Ian Barlett, Peter W D Bishop: Radio communications apparatus with diversity. Motorola, Anthony G Sitko, Jeffrey G Toler, September 17, 1996: US05557603 (46 worldwide citation)

This invention relates to apparatus and a method for provision of diversity in reception in a communications system such as the GSM cellular radio system. A received call of low quality is received through a first of two antennas (15, 16) and through first of a plurality of receivers (10-14). A spar ...