Christopher J Ware

US Patent:

7408931, Aug 5, 2008

Filed:

Dec 29, 2004

Appl. No.:

11/025613

Inventors:

Robert D. LoGalbo - Rolling Meadows IL, US
Randy L. Ekl - Lake Zurich IL, US
Ron Rotstein - Arlington Heights IL, US
Christopher G. Ware - Chicago IL, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04L 12/28
H04L 12/56

US Classification:

370390, 370348, 370468, 370412, 370413

Abstract:

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 packets from the access point to the station and holding the multicast packets in storage after the transmission, transmitting a contention free period end signal from the access point to the station, determining if a negative acknowledgement message has been received, retransmitting the multicast packets in response to receiving a negative acknowledgment message, and eliminating the multicast packets at a next beacon interval.

US Patent:

7515577, Apr 7, 2009

Filed:

Jun 29, 2006

Appl. No.:

11/427509

Inventors:

Aparna Pandey - Chicago IL, US
Randy L. Ekl - Lake Zurich IL, US
Christopher G. Ware - Chicago IL, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04Q 7/24

US Classification:

370338, 370324, 370328, 370331, 370350, 455 412, 455 413, 4554321, 4554351, 4554352, 455436

Abstract:

A method for communicating beacon transmissions from a wireless access point (WAP) to a client transceiver in a wireless local area network (WLAN) system () includes obtaining a reference timing for the wireless access point (WAP) (). The sector configuration and the sector timing in the WAP is then determined (). A virtual target beacon transmission time (TBTT) for the sector of interest serviced by the WAP is then calculated (), as is a channel number of the sector of interest. Finally, the method provides for listening () for a sector beacon signal from the sector of interest at the virtual TBTT and the calculated channel number.

US Patent:

7616617, Nov 10, 2009

Filed:

Jun 29, 2006

Appl. No.:

11/427555

Inventors:

Aparna Pandey - Chicago IL, US
Randy L. Ekl - Lake Zurich IL, US
Christopher G. Ware - Chicago IL, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04W 4/00

US Classification:

370338, 370328, 370329, 455 412, 455 413, 4554321, 4554351, 4554352

Abstract:

A method for transmitting beacon transmissions in a wireless local area network (WLAN) communications system () operating on one or more channels includes transmitting a first beacon (C) using a directional antenna in a first direction (D) on a first channel. A second beacon (C) is then transmitted using a directional antenna in a second direction (D) on the first channel. This process is then repeated such that the first beacon and second beacon after a predetermined beacon interval. The first beacon begins its transmission at a target beacon transmission time (TBTT) and the second beacon begins its transmission in a sequential period defined by an antenna switching time after the transmission of the first beacon.

US Patent:

7697456, Apr 13, 2010

Filed:

Feb 28, 2006

Appl. No.:

11/363778

Inventors:

Randy L. Ekl - Lake Zurich IL, US
Mark J. Johnson - Cary IL, US
Anthony R. Metke - Naperville IL, US
Aparna Pandey - Chicago IL, US
Joseph E. Phillips - Huntley IL, US
Christopher G. Ware - Chicago IL, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04L 12/28

US Classification:

370254, 37920101

Abstract:

Techniques are provided for selecting a root node in an ad hoc network that contains a plurality of nodes including a first node. According to one implementation of these techniques, a first node can receive a message from at least one of the other nodes. Each message includes a number of primary factors associated with a particular node regarding capabilities of the particular node. The primary factors associated with each node can then be evaluated, and an attempt can be made to select the root node based on the primary factors associated with each node. If the first node is unable to select the root node based on the primary factors associated with each node, then the root node can be selected based on secondary factors associated with each node.

US Patent:

7706337, Apr 27, 2010

Filed:

Oct 22, 2004

Appl. No.:

10/970940

Inventors:

Aparna Pandey - Chicago IL, US
Randy L. Ekl - Lake Zurich IL, US
Christopher G. Ware - Chicago IL, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04Q 7/24

US Classification:

370338, 370337, 370347, 370328, 370349

Abstract:

A method for performing neighbor discovery in a multi-tier wireless local area network where a client creates a neighbor list identifying a neighbor wherein the neighbor is identified as an access point or a client. Then, the client determines a time to perform a scan of neighbors based upon 1) a type of neighbor discovery to be performed and 2) when a first beacon is transmitted by an access point in a first tier of the multi-tier wireless local area network. Subsequently, the client performs a scan of neighbors at the determined time on a channel associated with the type of neighbor discovery. Finally, the client receives a beacon sent from a neighbor of the client to update the neighbor list with information transmitted in the beacon.

US Patent:

7796550, Sep 14, 2010

Filed:

Dec 13, 2005

Appl. No.:

11/301855

Inventors:

Christopher G. Ware - Chicago IL, US
Randy L. Ekl - Lake Zurich IL, US
Anthony R. Metke - Naperville IL, US

Assignee:

General Instrument Corporation - Horsham PA

International Classification:

H04W 4/00

US Classification:

370329, 370444, 370468

Abstract:

Method and apparatus for packet scheduling in a wireless network is described. First values for a data transmission rate are measured for each of a plurality of mobile stations over time. Second values for a function of the data transmission rate are computed using at least one of the first values for each of the mobile stations. A rate of change of the data transmission rate is computed for each of the plurality of mobile stations using the second values associated therewith. A stability of the data transmission rate is computed for each of the plurality of mobile stations using the second values associated therewith. A channel quality factor is determined for each of the mobile stations using a current value of the second values, the rate of change of the function, and the stability of the function associated therewith.

US Patent:

7876706, Jan 25, 2011

Filed:

Feb 28, 2006

Appl. No.:

11/363757

Inventors:

Randy L. Ekl - Lake Zurich IL, US
Mark J. Johnson - Cary IL, US
Anthony R. Metke - Naperville IL, US
Aparna Pandey - Chicago IL, US
Joseph E. Phillips - Huntley IL, US
Christopher G. Ware - Chicago IL, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04L 12/28

US Classification:

370254

Abstract:

Techniques are provided for selecting a root node in an ad hoc network comprising a plurality of nodes including a first node. According to one implementation of these techniques, a first node can receive a message from at least one of the other nodes. Each message includes a number of primary factors associated with a particular node regarding capabilities of the particular node. The primary factors associated with each node can then be evaluated, and an attempt can be made to select the root node based on the primary factors associated with each node. If the first node is unable to select the root node based on the primary factors associated with each node, then the root node can be selected based on secondary factors associated with each node.

US Patent:

8068467, Nov 29, 2011

Filed:

Oct 22, 2004

Appl. No.:

10/971293

Inventors:

Aparna Pandey - Chicago IL, US
Randy L. Ekl - Lake Zurich IL, US
Christopher G. Ware - Chicago IL, US

Assignee:

Motorola Soulutions, Inc. - Schaumburg IL

International Classification:

H04W 4/00
H04L 12/56
H04J 3/06
H04W 40/00

US Classification:

370338, 370408, 370503, 370508, 370509, 370510, 455449

Abstract:

A method for transmitting beacons by nodes in a multi-tier wireless local area network is disclosed. First, a first beacon by a tier node in the multi-tier wireless local area network is transmitted. Then, a second beacon by a tier node is transmitted where the second beacon is transmitted based upon the time that the first beacon is sent by the tier node.

Address:

3523 S Indiana Ave, Chicago, IL 60653

VIN:

1HGCP36809A047724

Make:

HONDA

Model:

ACCORD

Year:

2009