Patents by Inventor Sudip Ghosal
Sudip Ghosal has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11310844Abstract: In response to receiving a primary wireless LAN connection request from a computing device, a wireless access point (WAP) establishes a temporary wireless LAN associated with a temporary service set identifier (SSID) of a computing device. WAP stores a computing device identifier of the computing device in association with the temporary SSID. WAP communicates to the computing device, a CAPTCHA challenge-response test requesting connection to the temporary wireless LAN. WAP awaits, for a timeout period, a temporary wireless LAN connection request by the computing device to communicate over the temporary wireless LAN. In response to receiving or failing to receive the temporary wireless LAN connection request from the computing device within a timeout period, WAP classifies the computing device as a human or machine user. WAP applies network policies to communications of the pending computing device over the primary wireless LAN based on the machine or human user classification.Type: GrantFiled: December 26, 2018Date of Patent: April 19, 2022Assignee: ARRIS Enterprises LLCInventors: Subash Tirupachur Comerica, Sudip Ghosal, Wenge Ren
-
Patent number: 10838832Abstract: During a synchronization technique, states of a primary cluster in the computer system with multiple primary controllers that provide controllers for access points and a backup cluster in the computer system with multiple backup controllers that independently provide controllers for the access points may be dynamically synchronized. In particular the primary cluster may receive configuration requests with configuration information for the access points on an input node of the primary cluster. In response, the primary cluster may store the configuration requests in a replay queue in the computer system. Then, the primary cluster may playback the configuration requests in the replay queue for the backup cluster to synchronize the states of the primary cluster and the backup cluster. For example, the configuration requests may be played back within a time interval associated with a service level agreement of a service provider of a service for the access points.Type: GrantFiled: July 26, 2018Date of Patent: November 17, 2020Assignee: ARRIS Enterprises LLCInventors: Sudip Ghosal, Yi-Nan Lee
-
Publication number: 20200214056Abstract: In response to receiving a primary wireless LAN connection request from a computing device, a wireless access point (WAP) establishes a temporary wireless LAN associated with a temporary service set identifier (SSID) of a computing device. WAP stores a computing device identifier of the computing device in association with the temporary SSID. WAP communicates to the computing device, a CAPTCHA challenge-response test requesting connection to the temporary wireless LAN. WAP awaits, for a timeout period, a temporary wireless LAN connection request by the computing device to communicate over the temporary wireless LAN. In response to receiving or failing to receive the temporary wireless LAN connection request from the computing device within a timeout period, WAP classifies the computing device as a human or machine user. WAP applies network policies to communications of the pending computing device over the primary wireless LAN based on the machine or human user classification.Type: ApplicationFiled: December 26, 2018Publication date: July 2, 2020Inventors: Subash Tirupachur Comerica, Sudip Ghosal, Wenge Ren
-
Publication number: 20190036765Abstract: During a synchronization technique, states of a primary cluster in the computer system with multiple primary controllers that provide controllers for access points and a backup cluster in the computer system with multiple backup controllers that independently provide controllers for the access points may be dynamically synchronized. In particular the primary cluster may receive configuration requests with configuration information for the access points on an input node of the primary cluster. In response, the primary cluster may store the configuration requests in a replay queue in the computer system. Then, the primary cluster may playback the configuration requests in the replay queue for the backup cluster to synchronize the states of the primary cluster and the backup cluster. For example, the configuration requests may be played back within a time interval associated with a service level agreement of a service provider of a service for the access points.Type: ApplicationFiled: July 26, 2018Publication date: January 31, 2019Inventors: Sudip Ghosal, Yi-Nan Lee
-
Publication number: 20180270685Abstract: A controller and one or more access points that dynamically modify data collection in a system that includes a WLAN is described. In particular, during operation the access point may receive data for a type of data from an electronic device in the WLAN. Then, access point may aggregate the data based on an aggregation interval, where the aggregation interval is predefined for a group of types of data that includes the type of data. Moreover, the access point may transmit the aggregated data to the controller based on a reporting interval, where the reporting interval is predefined for the group of types of data. Next, the access point may receive an instruction from the controller to modify the aggregation interval and/or the reporting interval for the group of types of data. Furthermore, the access point may modify the aggregation interval and/or the reporting interval based on the instruction.Type: ApplicationFiled: March 16, 2017Publication date: September 20, 2018Applicant: Arris Enterprises LLCInventors: Yi-Nan Lee, Kai-Hsiung Cheng, Chien Cheng Ming, Sudip Ghosal, Ching-Hung Chen
-
Patent number: 10080155Abstract: A controller and one or more access points that dynamically modify data collection in a system that includes a WLAN is described. In particular, during operation the access point may receive data for a type of data from an electronic device in the WLAN. Then, access point may aggregate the data based on an aggregation interval, where the aggregation interval is predefined for a group of types of data that includes the type of data. Moreover, the access point may transmit the aggregated data to the controller based on a reporting interval, where the reporting interval is predefined for the group of types of data. Next, the access point may receive an instruction from the controller to modify the aggregation interval and/or the reporting interval for the group of types of data. Furthermore, the access point may modify the aggregation interval and/or the reporting interval based on the instruction.Type: GrantFiled: March 16, 2017Date of Patent: September 18, 2018Assignee: Arris Enterprises, LLCInventors: Yi-Nan Lee, Kai-Hsiung Cheng, Chien Cheng Ming, Sudip Ghosal, Ching-Hung Chen
-
Patent number: 8897778Abstract: An infrastructure assisted network transition scheme is provided. In a multi-mode wireless communication device, handover threshold data is received from a management server associated with a first wireless network comprising one or more wireless access points. The multi-mode wireless communication device receives signals from the one or more wireless access point devices of the first wireless network and generates data representing the received signals. The multi-mode wireless communication device analyzes the data representing the received signals with respect to the handover threshold data to determine when the multi-mode wireless communication device should initiate hand-in to the first wireless network and when to initiate hand-out from the first wireless network to the second wireless network. Functions are provided at the management server to enable the generation of the handover threshold data from network configuration information associated with the first wireless network.Type: GrantFiled: July 3, 2009Date of Patent: November 25, 2014Assignee: Cisco Technology, Inc.Inventors: Sudip Ghosal, David Sheldon Stephenson
-
Patent number: 8204029Abstract: A system and method are provided in which access point (AP) devices in a wireless local area network (WLAN) are typed or configured into one of three measurement and reporting roles: Monitor-Mode AP (MMAP), Portal AP (PAP), a Border AP (BAP) or an Interior AP (IAP). APs are assigned specific link measurement requirements according to their assigned type or role. In general, MMAPs and PAPs have the greatest measurement and reporting responsibilities, BAPs have less measurement and reporting responsibilities than PAPs and IAPs have the least measurement and reporting responsibilities. The APs generate measurements that are supplied to appropriate equipment to facilitate handover decisions with respect to a dual-mode wireless client device that roams between the WLAN and another network or vice versa. As a result, link measurements are only performed by APs in locations where such measurements are necessary for handover service, thus reducing the overall processing load on the WLAN infrastructure.Type: GrantFiled: December 19, 2008Date of Patent: June 19, 2012Assignee: Cisco Technology, Inc.Inventors: David Sheldon Stephenson, Seema Nayak, Sudip Ghosal, Rajneesh Kumar
-
Publication number: 20110002295Abstract: An infrastructure assisted network transition scheme is provided. In a multi-mode wireless communication device, handover threshold data is received from a management server associated with a first wireless network comprising one or more wireless access points. The multi-mode wireless communication device receives signals from the one or more wireless access point devices of the first wireless network and generates data representing the received signals. The multi-mode wireless communication device analyzes the data representing the received signals with respect to the handover threshold data to determine when the multi-mode wireless communication device should initiate hand-in to the first wireless network and when to initiate hand-out from the first wireless network to the second wireless network. Functions are provided at the management server to enable the generation of the handover threshold data from network configuration information associated with the first wireless network.Type: ApplicationFiled: July 3, 2009Publication date: January 6, 2011Applicant: CISCO TECHNOLOGY, INC.Inventors: Sudip Ghosal, David Sheldon Stephenson
-
Publication number: 20100226339Abstract: Techniques are provided herein to improve the manageability of handover performance of multi-mode wireless client devices when roaming between a wireless local area network (WLAN) and at least one other network. Signals are received at a plurality of WLAN access points from multi-mode wireless client devices. The WLAN access points generate handover data associated with handover events of wireless Voice-Over Internet Protocol (VoIP) communication sessions for the multi-mode wireless client devices between the wireless local area network and at least one other network. The WLAN access points also generate link quality data representing status and quality of a wireless link with multi-mode wireless client devices during a VoIP communication session. A controller that is provided that is configured to receive the handover data and link quality data for multi-mode wireless client devices from the plurality of access points.Type: ApplicationFiled: March 3, 2009Publication date: September 9, 2010Applicant: Cisco Technology, Inc.Inventors: David Sheldon Stephenson, Sudip Ghosal
-
Publication number: 20100118830Abstract: A system and method are provided in which access point (AP) devices in a wireless local area network (WLAN) are typed or configured into one of three measurement and reporting roles: Monitor-Mode AP (MMAP), Portal AP (PAP), a Border AP (BAP) or an Interior AP (IAP). APs are assigned specific link measurement requirements according to their assigned type or role. In general, MMAPs and PAPs have the greatest measurement and reporting responsibilities, BAPs have less measurement and reporting responsibilities than PAPs and IAPs have the least measurement and reporting responsibilities. The APs generate measurements that are supplied to appropriate equipment to facilitate handover decisions with respect to a dual-mode wireless client device that roams between the WLAN and another network or vice versa. As a result, link measurements are only performed by APs in locations where such measurements are necessary for handover service, thus reducing the overall processing load on the WLAN infrastructure.Type: ApplicationFiled: December 19, 2008Publication date: May 13, 2010Applicant: CISCO TECHNOLOGY, INC.Inventors: David Sheldon Stephenson, Seema Nayak, Sudip Ghosal, Rajneesh Kumar