1
Silverman Shmuel, Corke Robert J, Rotstein Ron: Method for providing point-to-point encryption in a communication system. Motorola, Silverman Shmuel, Corke Robert J, Rotstein Ron, SALADI Indira, May 6, 2005: WO/2005/041461 (2 worldwide citation)

A transmitting device (100) transmits a first packet, comprising a second encryption vector that is encrypted using a first encryption vector. The transmitting device (100) transmits a second packet that is encrypted using the second encryption vector if an acknowledgement message is received within ...


2
Jasper Steven C, Corke Robert J, Frank Colin D, Makhlouf Isam R: Method and apparatus for reference symbol aided channel estimation. Motorola, Jasper Steven C, Corke Robert J, Frank Colin D, Makhlouf Isam R, DAVIS Valerie M, October 12, 2006: WO/2006/107911 (1 worldwide citation)

A system that includes a receiver (100) that is configured for: selecting (210) a set of demodulator output samples and a corresponding set of reference symbols; generating (220) a set of raw channel estimates based on the set of demodulator output samples and the corresponding set of reference symb ...


3
Jasper Steven C, Corke Robert J, Frank Colin D, Makhlouf Isam R: Method and apparatus for reference symbol aided channel estimation. Motorola, Jasper Steven C, Corke Robert J, Frank Colin D, Makhlouf Isam R, January 23, 2008: GB2440296-A

A system that includes a receiver (100) that is configured for: selecting (210) a set of demodulator output samples and a corresponding set of reference symbols; generating (220) a set of raw channel estimates based on the set of demodulator output samples and the corresponding set of reference symb ...


4
Rotstein Ron, Corke Robert J, Schwartzman Arie Z: Method and apparatus for an enhanced ofdm system. Motorola A Corporation Of The State Of Delaware, Rotstein Ron, Corke Robert J, Schwartzman Arie Z, SALADI Indira, October 13, 2005: WO/2005/096533

A method and apparatus for communicating in an OFDM system whereby subcarriers of the OFDM system are multiplexed between at least a first and a second transmit antenna (124 and 125). The subcarriers are separated between the at least two transmit antennas (124 and 125) so that a subcarrier and a mi ...


5
Kahana Emanuel, Corke Robert J, Prysby Daniel G, Rotstein Ron: System and method to dynamically adapt a cca threshold. Motorola, Kahana Emanuel, Corke Robert J, Prysby Daniel G, Rotstein Ron, DAVIS Valerie M, March 8, 2007: WO/2007/027442

The present invention relates to a method, device and system for dynamically adapting a clear channel assessment threshold of a wireless communications channel by determining the status of a busy channel indicator for at least a first parameter (105) and dynamically changing the clear channel assess ...


6
Hekmann Ralf, Corke Robert J, Prysby Daniel G: System and method for performing channel estimation using interpolation. Motorola, Hekmann Ralf, Corke Robert J, Prysby Daniel G, HUGHES Terri S, September 12, 2008: WO/2008/109267

A system and method for performing channel estimation. The system includes a receiver for decoding OFDM. Upon receiving an OFDM symbol, a plurality of demodulated subcarrier modulation symbols for the OFDM symbol are generated. The demodulated subcarrier modulation symbols are then decoded to genera ...


7
Rao Yadunandana N, Chaudhri Apoorv, Corke Robert J, Delve Trefor J, Prysby Daniel G, Ware Christopher G, Zeleznik Michael F: Method and apparatus for detecting and identifying spectrum opportunities. Motorola, Rao Yadunandana N, Chaudhri Apoorv, Corke Robert J, Delve Trefor J, Prysby Daniel G, Ware Christopher G, Zeleznik Michael F, DOUTRE Barbara R, October 9, 2008: WO/2008/121512

A method (20,200) and apparatus (10) for detecting and identifying spectrum opportunities, including the steps of communicating a location of at least one node (12) to at least one base station (14) (24), transmitting a list of at least one channel from the at least one base station (14) to the at l ...


8
Frank Colin D, Corke Robert J, Seoane Jorge L: System and method for reducing interference in an orthogonal frequency division modulation system. Motorola, Frank Colin D, Corke Robert J, Seoane Jorge L, DAVIS Valerie M, July 17, 2008: WO/2008/085593

An interference contribution associated with a selected subcarrier of a plurality of subcarriers associated with a previously transmitted OFDM symbol or a current OFDM symbol is determined (300). A fast Fourier transform (FFT) output for the current OFDM symbol is also determined (304). The interfer ...


9
Frank Colin D, Conrad Alan P, Corke Robert J, Seoane Jorge L: System and method for demodulating data in an orthogonal frequency division modulation system. Motorola, Frank Colin D, Conrad Alan P, Corke Robert J, Seoane Jorge L, DAVIS Valerie M, July 17, 2008: WO/2008/085594

First incoming data comprising at least one OFDM symbol is received (302). A plurality of timing relationships is determined and each of the plurality of timing relationships relates to an alignment window of a fast Fourier transform (FFT) (304). Each of the plurality of timing relationships is appl ...


10
Corke Robert J, Prysby Daniel G, Zeleznik Michael F: Method and apparatus for interference cancellation in a wireless communication system. Motorola, Corke Robert J, Prysby Daniel G, Zeleznik Michael F, DAVIS Valerie M, May 29, 2008: WO/2008/063799

Described is a method and an apparatus (130) for performing the method to cancel interference caused by a windowing function applied to a signal prior to the signal being transmitted in a wireless communication system such as an OFDM system. The apparatus (130) includes receiver apparatus (410) that ...