Randy Ekl
Ron Rotstein, Randy L Ekl: Method for dynamic frequency selection. Motorola, Terri S Hughes, Indira Saladi, July 5, 2005: US06914876 (11 worldwide citation)

A communication band is divided into a plurality of allocation channels (202, 204, 206, 208). At least one allocation channel (204) is transferred to a transform domain. The behavior of the at least one allocation channel is monitored in the transform domain in order to derive a set of statistics. T ...

Randy Ekl
Randy L Ekl, Ron Rotstein: Method for acknowledging messages in a communication system. Motorola, Terri S Hughes, Indira Saladi, May 24, 2005: US06898414 (7 worldwide citation)

At a first device (102 or 104), a message is received and processed. If the message is processed during a first time period, the first device transmits an acknowledgement message during a second time period; otherwise the first device transmits the acknowledgment message during a third time period. ...

Randy Ekl
Robert D LoGalbo, Randy L Ekl, Ron Rotstein, Christopher G Ware: Methods for delivery in a wireless communications network. Motorola, Randi L Karpinia, Indira Saladi, August 5, 2008: US07408931 (6 worldwide citation)

Methods for delivery of multicast packets in a wireless communication system are disclosed. The methods comprise transmitting a contention free period initiation signal from an access point to the station, transmitting broadcast packets from the access point to the station, transmitting multicast pa ...

Randy Ekl
Shmuel Silverman, Randy L Ekl, Robert D LoGalbo, Ron Rotstein: Medium access control for simultaneous channel communications. Motorola, Randi L Karpinia, June 3, 2008: US07382758 (6 worldwide citation)

A method and system for wireless data transmission between at least three stations use multiple frequency bands for simultaneous channel communications. The method includes transmitting a Request To Send (RTS) packet from a first station to an intermediate second station over a first frequency band. ...


Ron Rotstein, Yuda Yehuda Luz, Robert T Love, Dennis Ray Schaefer, Jiangnan, Colin Frank: Method and apparatus for pseudo-random noise offset reuse in a multi-sector CDMA system. Motorola, June 21, 2005: US06909707 (58 worldwide citation)

A method and apparatus for reuse of pseudo-random noise (PN) offsets within a cell of a wireless communication system such as a multi-sector CDMA system. Adaptive antenna arrays are employed to form the multiple sector areas within the CDMA cell. A forward link data channel is established between a ...

Gregory Agami, Robert John Corke, Ron Rotstein: Method and apparatus for adaptive signaling in a QAM communication system. Motorola, Steven A May, June 7, 2005: US06904097 (51 worldwide citation)

A method and apparatus to adaptively puncture bits within QAM modulated data symbols transmitted in a communication system in order to effect a signaling channel. The method and apparatus utilize inherent characteristics of a particular mapping scheme for the QAM constellation to selectively punctur ...

Ron Rotstein, Robert J Corke, Daniel G Prysby, Yehuda Luz: Method and apparatus for reducing power consumption of a communication device. Motorola, Brian M Mancini, September 11, 2001: US06289228 (44 worldwide citation)

A method of reducing power consumption in a communication device includes a step of acquiring a signal on a common pilot channel of a radio communication system. A next step includes detecting predetermined bits in the signal on the common pilot channel indicating activity on paging channels of the ...

Jiangnan Chen, Yuda Y Luz, Ron Rotstein: Method and apparatus for implementing PN masks for a truncated M-sequence. Motorola, Sayed Hossain Beladi, Lalita P Williams, June 12, 2001: US06246676 (35 worldwide citation)

Method and apparatus to provide a pseudo random noise (PN) sequence having a particular code phase offset for use in a radio in a Code Division Multiple Access (CDMA) radio system (

Louay Jalloul, Keith A Tenbrook, Yuda Yehuda Luz, Jiangnan, Ron Rotstein: Method and apparatus for soft handoff communications in a communication system operating according to IS-95B and IS-95C standards. Motorola, Steven A May, July 27, 2004: US06768908 (32 worldwide citation)

A method and apparatus provide for soft handoff operation of at least a first signal transmitted according to a first communication standard (IS-95B) and a second signal transmitted according to a second communication standard (IS-95C). A mobile station (