1
Leland Scott Bloebaum, Havish Koorapaty, Daniel P Homiller, Bagher R Zadeh: Method and system for aiding GPS receivers via a cellular or PCS network. Ericsson, Wood Phillips VanSanten Clark & Mortimer, March 20, 2001: US06204808 (125 worldwide citation)

In accordance with the invention, there is disclosed a system for determining location of a mobile station. The mobile station includes a transceiver operating in a wireless network and a GPS receiver. The system includes a wireless network control system including GPS receivers for obtaining epheme ...


2
L Scott Bloebaum, Havish Koorapaty: Peer to peer information exchange for mobile communications devices. Ericsson, Coats & Bennett P L L C, December 12, 2006: US07149534 (95 worldwide citation)

The invention discloses various methods whereby mobile communications devices, connected to a communications network can share data by acting as both clients and servers. Specifically contemplated is the sharing of GPS assistance data. Also disclosed is the formation and use of hierarchical groups o ...


3
Havish Koorapaty, L Scott Bloebaum: Efficient location of mobile radiotelephones using cellular and GPS information. Ericsson, Coats & Bennett P L L C, October 5, 2004: US06801778 (89 worldwide citation)

The invention specifies various methods for the provision or calculation of a reference location for GPS-equipped mobile communications devices, specifically, GPS-equipped cellular phones. This is accomplished by providing certain GPS-related information over the cellular network, and by calculating ...


4
Kumar Balachandran, Rajaram Ramesh, Havish Koorapaty, Eric Wang, Sandeep Chennakeshu, Amer Hassan: System and method for coding in a telecommunications environment using orthogonal and near-orthogonal codes. Ericsson, Gregory Stephens, Moore & Van Allen PLLC, November 19, 2002: US06483828 (78 worldwide citation)

A system and method for permitting variable information rates and improved error performance using orthogonal or near-orthogonal codes is disclosed. This is achieved by simultaneously transmitting two or more Walsh code words from a given orthogonal code set and/or by transmitting multiple shorter o ...


5
Paul Wilkerson Dent, Havish Koorapaty: Method and system for determining position of a mobile transmitter. Ericsson, Wood Phillips VanSanten Clark & Mortimer, June 5, 2001: US06243587 (74 worldwide citation)

A system and method is provided for determining position of a mobile transmitter, such as a cellular telephone. The transmitter transmits a first signal at a first frequency (such as a RACH signal) to first and second receiving stations. The receiving sites are located at known locations. The transm ...


6
Alex K Raith, Rajaram Ramesh, Karl Molnar, R David Koilpillai, Havish Koorapaty: Systems and methods for locating remote terminals in radiocommunication systems. Ericsson, Wood Phillips VanSanten Clark & Mortimer, July 24, 2001: US06266534 (70 worldwide citation)

Emergency call handling may, in the near future, require terminal unit location information to be provided to emergency service centers. Exemplary embodiments of the present invention provide improved techniques for using a system of monitoring or adjunct stations to provide this location informatio ...


7
Kumar Balachandran, Havish Koorapaty, Rajaram Ramesh: System and method for locating a wireless local area network. Telefonaktiebolaget L M Ericsson, October 21, 2008: US07440755 (61 worldwide citation)

A system and method for finding a wireless local area network, WLAN, when a mobile terminal is connected to a cellular network. A position associated with each WLAN operating within the coverage area of the cellular network is stored in a database. At predefined intervals or conditions, the system d ...


8
Kumar Balachandran, Havish Koorapaty, David R Irvin: Methods, apparatus and computer program products for packet transport over wireless communication links. Ericsson, Myers Bigel Sibley & Sajovec, September 5, 2000: US06115394 (59 worldwide citation)

Methods, systems and computer program products are provide which reduce overhead in the communication of messages having a message header over a communication link. An alias address is selected from a predefined set of alias addresses and associated with a portion of the header of the message. If no ...


9
Havish Koorapaty, Patrick Nils Lundqvist, Alex Krister Raith: Mobile positioning method for a portable communications device using shortened repetitive bursts. Ericsson, Wood Phillips VanSanten Clark & Mortimer, June 5, 2001: US06243588 (52 worldwide citation)

Standard mobile cellular telephones use shortened burst signal transmissions to synchronize the transmission of a call over a cellular telephone network. These shortened bursts as well as other traffic channel bursts can be used to locate the position of the cell phone. In operation, a primary base ...


10
Hans Carlsson, Havish Koorapaty, Leland Scott Bloebaum: Accurate GPS time estimate based on information from a wireless communications system. Ericsson, Coats & Bennett P L L C, August 5, 2003: US06603978 (52 worldwide citation)

A method and apparatus for acquiring timing signals for use in a positioning receiver using timing assistance provided by a wireless communications system, such as cellular telephone system. A mobile terminal equipped with a positioning receiver operates in a wireless communications system having co ...