Patents by Inventor Sunil Keshavji Vadgama
Sunil Keshavji Vadgama 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).
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Patent number: 9794851Abstract: Providing mobility support of UEs that are served by mobile relay base stations, by providing handover of a UE for data traffic only between two mobile relay base stations. Exchanging information between the source and target mobile relay stations of the concerned UE in handover, and/or the corresponding donor base stations if applicable. The handover is triggered by any of the following: based on UE's measurement report, the signal quality of a neighbor cell is better than the current serving cell; based on the measurement of the serving mobile relay base station, the signal quality of the link to the UE is worse than a certain threshold; or based on the measurement of the serving mobile relay base station, the signal quality of a neighbor cell is much better than the current donor base station.Type: GrantFiled: December 21, 2016Date of Patent: October 17, 2017Assignee: FUJITSU LIMITEDInventors: Zhaojun Li, Sunil Keshavji Vadgama
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Publication number: 20170105160Abstract: Providing mobility support of UEs that are served by mobile relay base stations, by providing handover of a UE for data traffic only between two mobile relay base stations. Exchanging information between the source and target mobile relay stations of the concerned UE in handover, and/or the corresponding donor base stations if applicable. The handover is triggered by any of the following: based on UE's measurement report, the signal quality of a neighbour cell is better than the current serving cell; based on the measurement of the serving mobile relay base station, the signal quality of the link to the UE is worse than a certain threshold; or based on the measurement of the serving mobile relay base station, the signal quality of a neighbour cell is much better than the current donor base station.Type: ApplicationFiled: December 21, 2016Publication date: April 13, 2017Applicant: FUJITSU LIMITEDInventors: Zhaojun LI, Sunil Keshavji VADGAMA
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Publication number: 20170019839Abstract: A content delivery method employing opportunistic D2D links among UEs, in a two-stage process. In a first stage, content is delivered from a content delivery node (40) to a first tier of target UEs (10, 12, 14, 16) through the core network (30) and conventional cellular communication via a base station or access point (20). In the second stage, the target UEs act as relays for other, 2nd tier UEs (11, 13, 15) which wish to receive the content, by delivering the content over opportunistic D2D links. The process is controlled by a service anchor (50) of an operator providing the content delivery service.Type: ApplicationFiled: April 27, 2016Publication date: January 19, 2017Applicant: FUJITSU LIMITEDInventors: Zhaojun LI, Sunil Keshavji VADGAMA
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Patent number: 9532290Abstract: A method to provide mobility support of UEs (12) that are served by mobile relay base stations (14), by providing handover of a UE(12) for data traffic only between two mobile relay base stations. This is achieved by information exchanging between the source and target mobile relay stations of the concerned UE in handover, and/or the corresponding donor base stations (13, 11) if applicable. The handover is triggered by any of the following: based on UE's measurement report, the signal quality of a neighbor cell is better than the current serving cell; based on the measurement of the serving mobile relay base station, the signal quality of the link to the UE is worse than a certain threshold; or based on the measurement of the serving mobile relay base station, the signal quality of a neighbor cell (potential donor base station) is much better than the current donor base station.Type: GrantFiled: April 14, 2016Date of Patent: December 27, 2016Assignee: FUJITSU LIMITEDInventors: Zhaojun Li, Sunil Keshavji Vadgama
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Publication number: 20160360480Abstract: A small cell base station (scbs), associated with a closed group of mobile stations and located in a coverage area of a macrocell base station in a wireless network, transmits status information indicating that the scbs is to enter a sleep mode, and enters the sleep mode when no mobile stations of the group are located in a coverage area of the scbs or when all mobile stations of the group that are located in the coverage area of the scbs are idle. When a mobile station attempts to access the wireless network involving the macrocell base station while the scbs is in the sleep mode, the wireless network determines that the mobile station is in the coverage area of the scbs, and delays the access attempt. The scbs harvests radio frequency energy from signals transmitted by the mobile station during the access attempt for triggering its wake-up procedure.Type: ApplicationFiled: August 22, 2016Publication date: December 8, 2016Applicant: FUJITSU LIMITEDInventors: Mythri HUNUKUMBURE, Sunil Keshavji VADGAMA
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Patent number: 9440605Abstract: A rental vehicle has features that can be activated or deactivated wirelessly. Additional features can be purchased and activated after a customer has paid for an initial set of features and started to use the vehicle. Configuration of the vehicle is automated by transmitting a configuration message to the vehicle.Type: GrantFiled: June 30, 2015Date of Patent: September 13, 2016Assignee: FUJITSU LIMITEDInventors: Sunil Keshavji Vadgama, Yiwei Fang
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Publication number: 20160227461Abstract: A method to provide mobility support of UEs (12) that are served by mobile relay base stations (14), by providing handover of a UE(12) for data traffic only between two mobile relay base stations. This is achieved by information exchanging between the source and target mobile relay stations of the concerned UE in handover, and/or the corresponding donor base stations (13, 11) if applicable. The handover is triggered by any of the following: based on UE's measurement report, the signal quality of a neighbour cell is better than the current serving cell; based on the measurement of the serving mobile relay base station, the signal quality of the link to the UE is worse than a certain threshold; or based on the measurement of the serving mobile relay base station, the signal quality of a neighbour cell (potential donor base station) is much better than the current donor base station.Type: ApplicationFiled: April 14, 2016Publication date: August 4, 2016Applicant: FUJITSU LIMITEDInventors: Zhaojun LI, Sunil Keshavji VADGAMA
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Patent number: 9402258Abstract: A communication method for a wireless communication network comprises: providing a femto base station configured to communicate wirelessly with one or more wireless communication devices within the coverage area of the femto base station, wherein the femto base station may communicate on a plurality of different carrier frequencies; monitoring each communication device within the coverage area; and activating and/or deactivating one or more main carrier frequencies of the femto base station, in accordance with communication requirements of the communication devices; wherein a communication device, which is within the coverage area of the femto base station but is not being served by an active main carrier frequency of the femto base station, is served by a macro base station, having a coverage area within the coverage area of the femto base station, or, if the femto base station is also capable of communicating on auxiliary carrier frequencies, an auxiliary carrier frequency.Type: GrantFiled: May 26, 2015Date of Patent: July 26, 2016Assignee: FUJITSU LIMITEDInventors: Rajaguru Mudiyanselage Mythri Hunukumbure, Sunil Keshavji Vadgama
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Publication number: 20160142492Abstract: A method of controlling vehicular wireless communications of an on-board wireless communications unit of a vehicle, comprising: receiving information relating to the number of people and the number of vehicles with on-board wireless communications units in a geographical area; and setting a wireless communications policy defining what vehicular wireless communications are permitted to be transmitted in the geographical area, based on the received information.Type: ApplicationFiled: October 1, 2015Publication date: May 19, 2016Inventors: Yiwei FANG, Sunil Keshavji Vadgama
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Patent number: 9344948Abstract: A method to provide mobility support of UEs (12) that are served by mobile relay base stations (14), by providing handover of a UE (12) for data traffic only between two mobile relay base stations. This is achieved by information exchanging between the source and target mobile relay stations of the concerned UE in handover, and/or the corresponding donor base stations (13, 11) if applicable. The handover is triggered by any of the following: based on UE's measurement report, the signal quality of a neighbour cell is better than the current serving cell; based on the measurement of the serving mobile relay base station, the signal quality of the link to the UE is worse than a certain threshold; or based on the measurement of the serving mobile relay base station, the signal quality of a neighbour cell (potential donor base station) is much better than the current donor base station.Type: GrantFiled: March 4, 2015Date of Patent: May 17, 2016Assignee: FUJITSU LIMITEDInventors: Zhaojun Li, Sunil Keshavji Vadgama
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Patent number: 9330555Abstract: A method of tracking electromagnetic field, EMF, exposure of a user, comprising storing an aggregate EMF exposure value for the user, the aggregate EMF exposure value indicating EMF exposure due to use of one or more devices by the user; obtaining an estimate of EMF exposure associated with use of a particular one of the devices by the user; revising the aggregate EMF exposure value for the user in dependence upon the estimated EMF exposure; comparing the aggregate EMF exposure value to a threshold; and transmitting a signal related to use of the one or more devices if the aggregate EMF exposure value exceeds the threshold.Type: GrantFiled: March 31, 2014Date of Patent: May 3, 2016Assignee: FUJITSU LIMITEDInventors: Milos Tesanovic, Sunil Keshavji Vadgama, Mick Wilson
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Publication number: 20160100405Abstract: A communication method for a wireless communication network comprises: providing a femto base station configured to communicate wirelessly with one or more wireless communication devices within the coverage area of the femto base station, wherein the femto base station may communicate on a plurality of different carrier frequencies; monitoring each communication device within the coverage area; and activating and/or deactivating one or more main carrier frequencies of the femto base station, in accordance with communication requirements of the communication devices; wherein a communication device, which is within the coverage area of the femto base station but is not being served by an active main carrier frequency of the femto base station, is served by a macro base station, having a coverage area within the coverage area of the femto base station, or, if the femto base station is also capable of communicating on auxiliary carrier frequencies, an auxiliary carrier frequency.Type: ApplicationFiled: May 26, 2015Publication date: April 7, 2016Inventors: Rajaguru Mudiyanselage Mythri HUNUKUMBURE, Sunil Keshavji Vadgama
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Publication number: 20160001720Abstract: A rental vehicle has features that can be activated or deactivated wirelessly. Additional features can be purchased and activated after a customer has paid for an initial set of features and started to use the vehicle. Configuration of the vehicle is automated by transmitting a configuration message to the vehicle.Type: ApplicationFiled: June 30, 2015Publication date: January 7, 2016Applicant: FUJITSU LIMITEDInventors: Sunil Keshavji VADGAMA, Yiwei FANG
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Patent number: 9129459Abstract: A method for detecting the operating mode of a hybrid vehicle using roadside cameras, said method including the analysis of thermal images of parts of the vehicle and/or exhaust fumes, in combination with associated images of the number plates obtained using visual camera(s) operating in synchronism with said thermal camera and used for vehicle make inference and driver identification. The inferred make of the car is used for aforementioned analysis of thermal images. In a variant, the method is used to verify an operating mode reported by, or obtained from information reported by, the vehicle itself. The method can be used in a pollution management system for calculating financial charges to vehicle drivers in a low-emission zone of a Smart City for example.Type: GrantFiled: April 17, 2014Date of Patent: September 8, 2015Assignee: FUJITSU LIMITEDInventors: Milos Tesanovic, Sunil Keshavji Vadgama
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Patent number: 9078121Abstract: A process for the automatic creation of ad-hoc networks between mobile devices in emergency and evacuation events. During an emergency or an evacuation event a command centre (20) issues a special emergency warning to mobile network operators, in response to which the operators broadcast over the mobile network (10) a trigger message to the mobile devices (11-14) that they service. Receipt of the trigger message causes the mobile devices (11-14) in a given geographical area to search for their neighbours and to form groups each having a leader, subsequent communication between the group and the mobile network (10) being conducted via the leader, communications within the group being conducted for example by using Bluetooth or WiFi. In this way, both resources in the mobile network and battery power of the mobile devices are conserved.Type: GrantFiled: February 14, 2014Date of Patent: July 7, 2015Assignee: FUJITSU LIMITEDInventors: Serban Georgescu, Peter Chow, Sunil Keshavji Vadgama
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Publication number: 20150181498Abstract: A method to provide mobility support of UEs (12) that are served by mobile relay base stations (14), by providing handover of a UE (12) for data traffic only between two mobile relay base stations. This is achieved by information exchanging between the source and target mobile relay stations of the concerned UE in handover, and/or the corresponding donor base stations (13, 11) if applicable. The handover is triggered by any of the following: based on UE's measurement report, the signal quality of a neighbour cell is better than the current serving cell; based on the measurement of the serving mobile relay base station, the signal quality of the link to the UE is worse than a certain threshold; or based on the measurement of the serving mobile relay base station, the signal quality of a neighbour cell (potential donor base station) is much better than the current donor base station.Type: ApplicationFiled: March 4, 2015Publication date: June 25, 2015Inventors: Zhaojun LI, Sunil Keshavji VADGAMA
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Publication number: 20150006018Abstract: A method for detecting the operating mode of a hybrid vehicle using roadside cameras, said method including the analysis of thermal images of parts of the vehicle and/or exhaust fumes, in combination with associated images of the number plates obtained using visual camera(s) operating in synchronism with said thermal camera and used for vehicle make inference and driver identification. The inferred make of the car is used for aforementioned analysis of thermal images. In a variant, the method is used to verify an operating mode reported by, or obtained from information reported by, the vehicle itself. The method can be used in a pollution management system for calculating financial charges to vehicle drivers in a low-emission zone of a Smart City for example.Type: ApplicationFiled: April 17, 2014Publication date: January 1, 2015Applicant: FUJITSU LIMITEDInventors: Milos TESANOVIC, Sunil Keshavji VADGAMA
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Patent number: 8923909Abstract: A value of a parameter which affects network performance or operation of a cell in a wireless network is re-selected by: storing an indicator, representing the performance and/or operation of the network, and a criterion to be met by the indicator when the value of the parameter has been re-selected; receiving data relating to the performance or operation of the network, and deriving therefrom statistical data relating to said indicator; storing that statistical data; when the value of the parameter is to be re-selected, obtaining at least two different solutions for the value of the parameter to be re-selected; using said statistical data to determine which of the solutions obtained most satisfactorily meets said criterion for the indicator; and selecting that solution for implementation on the network.Type: GrantFiled: June 29, 2012Date of Patent: December 30, 2014Assignee: Fujitsu LimitedInventors: Rajaguru Mudiyanselage Mythri Hunukumbure, Sunil Keshavji Vadgama
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Patent number: 8873496Abstract: A method is disclosed which is intended for use in multiple-input multiple-output wireless communication systems which have a plurality of adjacent cells (cell A, cell B, cell C, cell D), each containing one or more base stations which co-operatively transmit signals to, and receive signals transmitted from, a user equipment (UE). The user equipment is operable to feed back to the relevant base station(s) CSI reports relating to channel(s) between the relevant base station(s) and the users, the base stations are operable to adapt signals for transmission to users, based on the fed back channel state information. The method involves the UE being configured to select at least one cell to be the subject of a CSI report, and to send the CSI report with an indication of the subject cell(s). Feedback overhead on the uplink is reduced when many cells co-operate in transmission to the user equipment.Type: GrantFiled: January 31, 2013Date of Patent: October 28, 2014Assignee: Fujitsu LimitedInventors: Timothy Moulsley, Sunil Keshavji Vadgama
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Publication number: 20140313041Abstract: A method of tracking electromagnetic field, EMF, exposure of a user, comprising storing an aggregate EMF exposure value for the user, the aggregate EMF exposure value indicating EMF exposure due to use of one or more devices by the user; obtaining an estimate of EMF exposure associated with use of a particular one of the devices by the user; revising the aggregate EMF exposure value for the user in dependence upon the estimated EMF exposure; comparing the aggregate EMF exposure value to a threshold; and transmitting a signal related to use of the one or more devices if the aggregate EMF exposure value exceeds the threshold.Type: ApplicationFiled: March 31, 2014Publication date: October 23, 2014Applicant: FUJITSU LIMITEDInventors: Milos TESANOVIC, Sunil Keshavji VADGAMA, Mick WILSON