Achal R Patel

US Patent:

6697378, Feb 24, 2004

Filed:

Oct 16, 1998

Appl. No.:

09/174273

Inventors:

Achal Patel - McKinney TX

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04J 316

US Classification:

370468, 370328, 370329, 370330, 370341, 370349

Abstract:

A system of wireless network with capabilities of transporting data packets, wherein the data transmission activity of each data connection is determined using the localized air interface capacity threshold and available bandwidth estimates obtained via the messages sent by the wireless network (FIG. ). The system provides a unique and efficient way of providing control over data packet transmissions over a wireless network. The localized wireless network capacity threshold and available bandwidth estimates are obtained via use of empirical formulae and are improved upon via the use of messaging obtained from the wireless network by the Bandwidth Estimator ( ) (FIG. and ). The data transmission activity factors of all data connections are determined by the Bandwidth Estimator using the localized capacity threshold and available bandwidth estimates, along with the priority/class of traffic of specific data calls (FIG. ). The data transmission activity factors are implemented using the transmission window size update and local queuing by the Data Controller ( ) (FIG. ). Various implementations and interconnectivities of the Bandwidth Estimator and Data Controller functions are outlined (FIGS. ).

US Patent:

6850764, Feb 1, 2005

Filed:

Dec 17, 1999

Appl. No.:

09/466308

Inventors:

Achal R. Patel - McKinney TX, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04Q 720

US Classification:

455450, 455446, 455452, 455456, 455406, 455524, 455453, 455423, 370468, 370328

Abstract:

A method and system for allocating bandwidth in a wireless communications network includes a geo-location tool and an allocation engine. The geo-location tool is operable to receive data for a wireless communications network that includes a plurality of geo-location areas and to estimate bandwidth parameters for a geo-location based on the data. The allocation engine is operable to allocate bandwidth in the geo-location area based on its bandwidth parameters.

US Patent:

6865185, Mar 8, 2005

Filed:

Feb 25, 2000

Appl. No.:

09/513912

Inventors:

Pulin R. Patel - McKinney TX, US
Achal R. Patel - McKinney TX, US
Ojas T. Choksi - Plano TX, US
Mohammad R. Ali - Plano TX, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04Q007/22
H04L012/56

US Classification:

370412, 370310

Abstract:

A method and system for queuing traffic in a wireless network includes receiving a stream of packets for transmission in the wireless network. Each packet includes a flow identifier and is assigned to one of the plurality of virtual groups based on the flow identifier. The virtual groups include discrete transmission resources. Each packet is queued in an assigned virtual group for transmission in the wireless network.

US Patent:

6907243, Jun 14, 2005

Filed:

Jun 9, 2000

Appl. No.:

09/591077

Inventors:

Achal R. Patel - McKinney TX, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04Q007/20
H04Q007/00
H04B007/00
H04B007/216

US Classification:

455442, 455450, 455453, 455509, 455436, 455440, 370331, 370335, 370329

Abstract:

A method and system for dynamic soft handoff resource allocation in a wireless communications network includes determining a wireless path characteristic individually for each path of a macro diversity connection between a mobile device and a plurality of wireless sites. Wireless resources are allocated for the macro diversity connection between the mobile device and the wireless sites based on the wireless path characteristic. The wireless path characteristic includes a location-based characteristic, a congestion-based characteristic, a subscriber-based characteristic and/or a performance-based characteristic.

US Patent:

6973315, Dec 6, 2005

Filed:

Jul 2, 2001

Appl. No.:

09/898558

Inventors:

Jerzy Miernik - Allen TX, US
Pulin R. Patel - McKinney TX, US
Achal R. Patel - McKinney TX, US
Ojas T. Choksi - Plano TX, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04Q007/20

US Classification:

4554522, 455445, 455450, 455451, 4554521, 455453, 455464, 370231, 370235, 370237, 37039541, 37039542

Abstract:

A method and system for sharing over-allocated bandwidth between different classes of service in a wireless network. Traffic is transmitted for a first service class in excess of bandwidth allocated to the first service class using unused bandwidth allocated to a second class. After transmitting traffic for the first service class in excess of bandwidth allocated to the first service class using unused bandwidth allocated to a second class, traffic for a third service class is transmitted in unused bandwidth remaining in the second service class.

US Patent:

7043225, May 9, 2006

Filed:

Feb 25, 2000

Appl. No.:

09/513592

Inventors:

Pulin R. Patel - McKinney TX, US
Raghuram Krovvidi - Irving TX, US
Ojas T. Choksi - Plano TX, US
Achal R. Patel - McKinney TX, US
Kenneth W. Davidson - Plano TX, US
Mohammad R. Ali - Plano TX, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04M 11/00
H04Q 7/20

US Classification:

455405, 455406, 4554042, 4554561, 4554562, 4554566

Abstract:

A method and system for brokering bandwidth in a wireless communications network includes receiving a request for a wireless service at a geographic region. An availability of the wireless service is determined at the geographic region. A response to the request is generated based on the availability of the wireless service. The response includes one or more terms for the wireless service.

US Patent:

7068624, Jun 27, 2006

Filed:

Feb 25, 2000

Appl. No.:

09/513914

Inventors:

Ramanamurthy Dantu - Richardson TX, US
Pulin R. Patel - McKinney TX, US
Ojas T. Choksi - Plano TX, US
Achal R. Patel - McKinney TX, US
Mohammad R. Ali - Plano TX, US
Jerzy Miernik - Allen TX, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04L 12/56

US Classification:

370331, 370356, 370409

Abstract:

A wireless communications network includes a wireless-specific router topology layer that connects cellular sites to a wireline topology. The wireless-specific router topology provides a distributed architecture in which call processing including call setup, resource preservation, air bandwidth allocation, switching, soft handoff, and micromobility is performed at the cell level. The wireless routers are technology independent to support various cellular technologies. The wireless router may include a first interface operable to communicate wireless packets for a call with a remote device and a second interface operable to communicate wireline packets for the call with the wireline network. A traffic controller is coupled to the first and second interfaces and operable to convert traffic between the wireless and wireline packets and to route packets to a destination mobile or wireline device. A selection and distribution unit is operable to select and distribute traffic to support soft handoff for calls in the wireless communications network.

US Patent:

7126913, Oct 24, 2006

Filed:

Dec 3, 2002

Appl. No.:

10/309393

Inventors:

Achal R. Patel - McKinney TX, US
Pulin R. Patel - McKinney TX, US
Ojas T. Choksi - Plano TX, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04J 3/14
H04L 12/66

US Classification:

3702301, 370232, 370235

Abstract:

A method and system for managing transmission resources in a wireless communications network includes receiving a plurality of packets and determining a time duration for transmission of each packet. A power level for transmission of each packet over the time duration is further determined. Based on the time duration and the power level determined for each packet, a wireless resource impact is determined for each packet. Transmission resources are allocated to each packet based on the wireless resource impact determined for each packet.