Takeshi Morishima

US Patent:

7096026, Aug 22, 2006

Filed:

Jul 18, 2003

Appl. No.:

10/622815

Inventors:

Dean E. Thorson - Grayslake IL, US
Takeshi Morishima - Hoffman Estates IL, US
Samer A. Nabulsi - Woodridge IL, US
Anal R. Shah - Gujarat, IN

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04Q 7/20

US Classification:

455450, 4554221, 455453, 455455, 455509, 455507, 455403, 370328, 370329, 370331, 370431

Abstract:

The need for reducing the time required for call setup in a wireless communication system () is addressed herein. A base station (BS ) sends a channel assignment message to a mobile station (MS ) and performs traffic channel initialization procedures with the MS. After completing the traffic channel initialization procedures, the BS sends a base station acknowledgment message to the MS and proceeds to transmit signaling to the MS without waiting to receive an MS acknowledgment in response to the base station acknowledgment message. Thus, the time normally taken to receive the MS acknowledgment is saved and call setup time reduced.

US Patent:

7242941, Jul 10, 2007

Filed:

May 16, 2003

Appl. No.:

10/439743

Inventors:

Ravi M. Adatrao - Palatine IL, US
Ming Dai - Crystal Lake IL, US
Jonathan H. Gross - Gilbert AZ, US
Takeshi Morishima - Hoffman Estates IL, US
Daniel J. DeClerck - Lake Barrington IL, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04Q 7/20
H04Q 7/00

US Classification:

455442, 455437, 455436, 455438, 370331, 370332

Abstract:

A mobile station typically determines whether to drop a communication link and/or a base transceiver station (BTS) based on a performance of an associated forward link. In order to avoid dropping a communication link that has a weak forward link but a strong reverse link, a communication system is provided that determines whether the reverse link is still good before determining to drop the communication link. In one embodiment, the communication system determines whether reverse link is still good based on a quality metric associated with the reverse link and quality metric(s) associated with one or more other reverse links that are in a soft-handoff mode with reverse link. In another embodiment, the communication system determines whether reverse link is still good by comparing a quality metric associated with the reverse link to a threshold.

US Patent:

7474626, Jan 6, 2009

Filed:

May 13, 2004

Appl. No.:

10/845558

Inventors:

Dean E. Thorson - Grayslake IL, US
Michael J. Kinnavy - Park Ridge IL, US
Takeshi Morishima - Hoffman Estates IL, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04J 1/16
H04B 17/00

US Classification:

370252, 455 6711

Abstract:

A method () and corresponding data processing system () of detecting cloned or duplicated communication units based on received signals is described. The method comprise receiving a signal () comprising a sequence of data symbols; and determining () whether the signal originated from a plurality of communication units based on a parameter, such as power or quality level of a group of the data symbols.