51
Thomas F La Porta, Ramachandran Ramjee, Malathi Veeraraghavan: Method and system for distributed control in wireless cellular and personal communication systems. Lucent Technologies, June 27, 2000: US06081715 (30 worldwide citation)

A system for distributed control in wireless cellular and personal communication systems includes separate servers for performing call control and connection control functions, thereby obviating the need for a mobile switching or other switch to be anchored for the duration of a call. During a regis ...


52
Yihsiu Chen, Mark Jeffrey Foladare, Kathleen C Fowler, Shelley B Goldman, Shaoqing Q Wang, Roy Philip Weber, Robert S Westrich, Aleksandr Zelezniak: Method and system for providing controllable enhanced call service features at mobile locations. AT&T, November 22, 2005: US06967947 (29 worldwide citation)

A system and method for providing PBX-like functionality at a mobile location includes the capability of maintaining a network session with a mobile number associated with a remote worker. The system utilizes a remote office platform interposed between a data communications network and a conventiona ...


53
Gerald P Labedz: Method and apparatus for adjusting channel powers in a wireless communication system based on a predicted mobile location. Motorola, Kenneth A Haas, September 12, 2000: US06119010 (28 worldwide citation)

The present invention provides a method of adjusting channel powers during operation of a wireless communication system. A relatively few pieces of operating data are obtained from the wireless communication system and simulation techniques are used to identify potential system performance problems. ...


54
Christopher J Hall, Clay S Turner, Jimmy C Ray: Method and apparatus for geolocating a wireless communications device. John L DeAngelis Jr, Beusse Wolter Sanks, Mora & Maire P A, August 14, 2007: US07256737 (27 worldwide citation)

The time difference of arrival for a signal received at two or more receiving sites as transmitted from a wireless communications device, is determined by a frequency domain technique. The constituent frequencies of the signals received at the two or more receiving sites are determined, including th ...


55
J Claude Caci: Cooperative element location system. Lockheed Martin Corporation, Miles & Stockbridge PC, James T Carmichael, May 23, 2006: US07050787 (27 worldwide citation)

Disclosed is a cooperative element location system especially useful for locating a cellular telephone making a call from an unknown location. The call may be a request for emergency assistance, or for location-based commercial services, for example. Various embodiments may optionally include a mobi ...


56
Mark Titus, Dara Ung, Carle S Johnson Jr, Erik Wallace, Phillip Geil, Daniel Hronek: Prepaid short messaging. TeleCommunication Systems, William H Bollman, September 23, 2008: US07428510 (25 worldwide citation)

A prepaid messaging solution which uses open networking standards (e.g., TCP/IP) and which supports pre-payment of enhanced Internet messaging services. The disclosed prepaid architectures and methods accurately determine if a subscriber has sufficient account balance to deliver a complete short mes ...


57
Magesh Annamalai, Christopher E Caldwell, Simon Chapman, Christopher H Joul, Justin Mueller, Janne P Linkola, John F Pottle, Ryan N Jensen: Mobile computing device geographic location determination. T Mobile USA, Perkins Coie, February 14, 2012: US08116291 (24 worldwide citation)

A wireless connection between a mobile device and an IP-based wireless telecommunications network is established when the mobile device registers with a network controller (NC) through an access point (AP). When a geographical position is needed for the mobile device (e.g., a 911 call), messages are ...


58
Hongyi Li, Gerard R Pieris, Donna D Xu, Goran G Janevski, Ahmed Areef Reza: Methods and apparatus for supporting micro-mobility within a radio access network. Nortel Networks, January 2, 2007: US07158497 (24 worldwide citation)

The invention provides a novel protocol suite for supporting micro-mobility within a radio access network (RAN). The protocol suite and comprises three separate protocols, namely a Mobile Registration Protocol, a Handoff Affected Router Discovery Protocol (HARDP) and a Mobile Location Update Protoco ...


59
Ole Petter Skaaksrud, Terence Hollahan, Steven Benton: Proximity node location using a wireless node network. FEDEX CORPORATE SERVICES, Withers & Keys, June 6, 2017: US09674812 (23 worldwide citation)

Methods, media, apparatus, and systems are described for improved and enhanced node location determination related to one of a plurality of nodes in a wireless node network. A first and second other node in the network are instructed to detect any message broadcast from the one node over a period of ...


60
J Claude Caci: Method and apparatus for locating a wireless device. Lockheed Martin Corporation, Miles & Stockbridge PC, James T Carmichael, May 23, 2006: US07050786 (23 worldwide citation)

Disclosed is a method and apparatus for locating a wireless device especially useful for locating a cellular telephone making a call from an unknown location. The call may be a request for emergency assistance, or for location-based commercial services, for example. Various embodiments may optionall ...