Patents by Inventor Rajeev Agrawal
Rajeev Agrawal 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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Publication number: 20150065108Abstract: Systems, methods, apparatuses, and computer program products relating to coordinated scheduling with adaptive muting are provided. One method comprises transmitting, by a network element, calculated impact information for a cell of the network element when taking an action related to a cell of the network element and/or taking an action related to a cell of a second network element.Type: ApplicationFiled: September 4, 2013Publication date: March 5, 2015Applicant: NOKIA SIEMENS NETWORKS OYInventors: Anand BEDEKAR, Rajeev AGRAWAL, Suresh KALYANASUNDARAM, Naveen ARULSELVAN, Troels Emil KOLDING, Hans KROENER
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Publication number: 20150063222Abstract: Systems, methods, apparatuses, and computer program products relating to coordinated scheduling with adaptive muting are provided. One method comprises transmitting, by a network element, calculated impact information for a cell of the network element when taking an action related to a cell of the network element and/or taking an action related to a cell of a second network element.Type: ApplicationFiled: February 7, 2014Publication date: March 5, 2015Applicant: NOKIA SOLUTIONS AND NETWORKS OYInventors: Xiaoyi WANG, Eugene VISOTSKY, Anand BEDEKAR, Bishwarup MONDAL, Rajeev AGRAWAL, Naveen ARULSELVAN, Suresh KALYANASUNDARAM, Troels Emil KOLDING, Hans KROENER
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Patent number: 8929280Abstract: A method for prioritizing Mobile IP between PMIP and CMIP includes the steps of connecting a mobile device (118) to a communication network (102) and determining (308) if the network provides mobility control, such as the network being PMIP-enabled. When it is determined that the network provide mobility control, the mobility function is assigned (312) to the network and is therefore given priority over the mobility function provided by the mobile device. It can be determined (304) that the mobile station also includes a mobility control so that when the network is not PMIP-enabled the mobile station controls (314) layer 3 mobility and the Mobile IP function.Type: GrantFiled: June 4, 2007Date of Patent: January 6, 2015Assignee: Motorola Mobility LLCInventors: Anand S. Bedekar, Rajeev Agrawal, Suresh Kalyanasundaram
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Patent number: 8897798Abstract: Systems and techniques for scheduling of use of resources by wireless devices and allocation of resources among devices. Information is received relating to channel efficiency experienced by a user equipment and also to the channel efficiency experienced by other user equipments. The information may include channel gain. Scheduling and resource allocation are performed so as to provide service to each device while minimizing interference penalties imposed by devices on one another. Scheduling and resource allocation may be evaluated and conducted through a number of mechanisms, such as ranking users according to transmit power, ranking user equipments according to target signal to noise ratios, and evaluation of relative advantages to users with the evaluation being performed resource block by resource block. The various metrics take into account both advantages to a particular user equipment under consideration and detrimental effects on other user equipment.Type: GrantFiled: December 16, 2011Date of Patent: November 25, 2014Assignee: Nokia Siemens Networks OyInventors: Rajeev Agrawal, Naveen Arulselvan, Suresh Kalyanasundaram, Rangsan Leelahakriengkrai, Balamurali Natarajan, Hua Xu
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Patent number: 8797988Abstract: Apparatus, methods, and program products are presented that perform the following: allocating a set of sounding reference signal resources in a sounding reference signal resource space to a plurality of user equipment using a portioning scheme, and signaling indications of the allocated set of sounding reference signal resources to the plurality of user equipment. The portioning scheme may be a load balancing, complete partitioning, or hybrid scheme. The selection of a portioning scheme may be based on load.Type: GrantFiled: July 17, 2012Date of Patent: August 5, 2014Assignee: Nokia Siemens Networks OyInventors: Balamurali Natarajan, Rajeev Agrawal, Suresh Kalyanasundaram
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Patent number: 8594672Abstract: Systems and techniques for managing the use of almost blank subframes in wireless communication systems. Base stations in a wireless network monitor load information affecting network nodes. Load information may be in the form of load metric information. The load information may be exchanged between system elements, and an almost blank subframe proportioning may be updated by one or more of the base stations, and information relating to the updated proportioning. The updated almost blank subframe proportioning may be used in scheduling and load metric calculation, as well as almost blank subframe patterning. Updating of almost blank subframe information and load metric information may be performed iteratively.Type: GrantFiled: December 21, 2011Date of Patent: November 26, 2013Assignee: Nokia Siemens Networks OyInventors: Rajeev Agrawal, Rangsan Leelahakriengkrai, Anand S. Bedekar, Guang Han
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Publication number: 20130229989Abstract: Apparatus, methods, and program products are presented that perform the following: allocating a set of sounding reference signal resources in a sounding reference signal resource space to a plurality of user equipment using a portioning scheme, and signaling indications of the allocated set of sounding reference signal resources to the plurality of user equipment. The portioning scheme may be a load balancing, complete partitioning, or hybrid scheme. The selection of a portioning scheme may be based on load.Type: ApplicationFiled: July 17, 2012Publication date: September 5, 2013Inventors: Balamurali NATARAJAN, Rajeev AGRAWAL, Suresh KALYANASUNDARAM
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Publication number: 20130084864Abstract: Systems and techniques for handover management in wireless communication networks. An apparatus, such as a base station, receives information relating to load conditions and computes handover threshold information based on the information relating to the load conditions. The information relating to the load conditions may comprise information received from other base stations, and the base station may in turn share its own information. Information may be shared through direct communication between base stations, or may be managed by a controller. Handover thresholds may be set for user devices based on the load metric information.Type: ApplicationFiled: December 21, 2011Publication date: April 4, 2013Inventors: Rajeev Agrawal, Rangsan Leelahakriengkrai, Anand S. Bedekar, Guang Han
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Publication number: 20130084865Abstract: Systems and techniques for managing the use of almost blank subframes in wireless communication systems. Base stations in a wireless network monitor load information affecting network nodes. Load information may be in the form of load metric information. The load information may be exchanged between system elements, and an almost blank subframe proportioning may be updated by one or more of the base stations, and information relating to the updated proportioning. The updated almost blank subframe proportioning may be used in scheduling and load metric calculation, as well as almost blank subframe patterning. Updating of almost blank subframe information and load metric information may be performed iteratively.Type: ApplicationFiled: December 21, 2011Publication date: April 4, 2013Inventors: Rajeev Agrawal, Rangsan Leelahakriengkrai, Anand S. Bedekar, Guang Han
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Publication number: 20130072213Abstract: Systems and techniques for scheduling of use of resources by wireless devices and allocation of resources among devices. Information is received relating to channel efficiency experienced by a user equipment and also to the channel efficiency experienced by other user equipments. The information may include channel gain. Scheduling and resource allocation are performed so as to provide service to each device while minimizing interference penalties imposed by devices on one another. Scheduling and resource allocation may be evaluated and conducted through a number of mechanisms, such as ranking users according to transmit power, ranking user equipments according to target signal to noise ratios, and evaluation of relative advantages to users with the evaluation being performed resource block by resource block. The various metrics take into account both advantages to a particular user equipment under consideration and detrimental effects on other user equipment.Type: ApplicationFiled: December 16, 2011Publication date: March 21, 2013Inventors: Rajeev Agrawal, Naveen Arulselvan, Suresh Kalyanasundaram, Rangsan Leelahakriengkrai, Balamurali Natarajan, Hua Xu
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Patent number: 8401574Abstract: A method and apparatus for managing delivery of information in a wireless network (100) includes bearer plane information handlers (110, 111), each of which maintains a database of paging controller associations (200). Each paging controller association is an association of an idle mobile device to a last known paging controller of that idle mobile device. The apparatus also includes paging controllers (115-118), each of which is associated with at least one paging area (130-133). For each paging area, the paging controller maintains a database of all base transmitters of the paging area that are associated with the paging controller (310) and maintains a database of other selected paging controllers that control base transmitters in the paging area (315). Using these resources, the method uses location notification messages and paging responses to deliver bearer plane information to a mobile device (125) that has been idle.Type: GrantFiled: June 30, 2006Date of Patent: March 19, 2013Assignee: Motorola Mobility LLCInventors: Anand S. Bedekar, Rajeev Agrawal, Venkat Gopikanth, Suresh Kalyanasundaram, Ram O V Vishnu
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Publication number: 20130067378Abstract: Various embodiments provide a user interface that displays a history of resource usage of a computing device's applications over time. Historical resource usage data can be presented in a manner which informs the user, on an application-by-application basis, of each application's resource usage across a plurality of resources. In at least some embodiments, the user interface can provide one or more instrumentalities that enable the user to interact with and/or modify operational characteristics of various applications based upon the presented historical resource usage data.Type: ApplicationFiled: September 9, 2011Publication date: March 14, 2013Applicant: Microsoft CorporationInventors: Jonathan M. Au, Peter Seraphim Ponomarev, Sharif S. Farag, Kevin Michael Woley, Sharad Kylasam, Mark Yalovsky, Krishna Venkatesh, Shankar Seal, Srinivas Raghu Gatta, Rajeev Agrawal, Vijay Prakash
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Patent number: 8195807Abstract: An indication is received from the mobile station (114) indicating that the mobile station (114) is moving from an originating mobility agent (106) to a destination mobility agent (108). An identity of the destination mobility agent (108) is determined using the indication. Routing information is sent from the originating mobility agent (106) to the destination mobility agent (108) using the identity. Incoming data is routed to the mobile station (114) using the routing information.Type: GrantFiled: June 19, 2006Date of Patent: June 5, 2012Assignee: Motorola Mobility, Inc.Inventors: Anand S. Bedekar, Rajeev Agrawal, Venkat Gopikanth, Suresh Kalyanasundaram, Vishnu Ram Ov
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Patent number: 8175600Abstract: A method and apparatus for handing over a mobile station (106) from a serving base station (104a) to a target base station (104b) within a wireless communication system (100) is described. A session is established between the mobile station and the serving base station and it is determined that the mobile station is to be handed over from the serving base station to the target base station. The target base station notifies the serving base station of identifying data of the target base station and added to the identifying data is a message to be sent to mobile station regarding the handover of the mobile station. The serving base station sends the message including the identifying data to the mobile station and the mobile station is handed over from the serving base station to the target base station using the identifying data of the target base station.Type: GrantFiled: August 3, 2006Date of Patent: May 8, 2012Assignee: Motorola Mobility, Inc.Inventors: Vijay G. Subramanian, Rajeev Agrawal, Anand S. Bedekar, Stavros Tzavidas
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Patent number: 8165597Abstract: A central controller (300) receives (201), from each of a plurality of base stations certain operating information. This operating information can comprise, for example, a self-identifier, information regarding allowed wireless distance coverage, identifiers for neighboring ones of the plurality of base stations, information regarding wireless distances to neighboring base station, or loading information. This operating information is used (202) to form adjacency information regarding the plurality of base stations. This adjacency information is then used (203) (along, for example, with the aforementioned loading information) to develop a resource allocation plan as pertains to the resources. This plan is then communicated (204) to the plurality of base stations such that the latter can utilize the plan to thereby partition use of the plurality of resources to support communication needs of the base stations while avoiding undue interference with respect to the use of such resources.Type: GrantFiled: January 25, 2010Date of Patent: April 24, 2012Assignee: Motorola Mobility, Inc.Inventors: Guang Han, Rajeev Agrawal, Anand S. Bedekar
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Patent number: 8160067Abstract: A wireless access point (200), upon determining (101) that a need exists to support a communication need of a mobile station, acquires (102) a first Internet Protocol (IP) address and automatically transmits (103) a gratuitous Address Resolution Protocol message to a local router to thereby cause the latter to correlate the first IP address to a Medium Access Control address for the wireless access point. In a preferred embodiment the wireless access point can also automatically transmit a registration request to a remote network element (such as a Home Agent) that presents this first IP address as a care-of address to use in conjunction with another IP address that serves as a home address for the mobile station.Type: GrantFiled: June 19, 2006Date of Patent: April 17, 2012Assignee: Motorola Mobility, Inc.Inventors: Anand S. Bedekar, Rajeev Agrawal, Venkat Gopikanth, Suresh Kalyanasundaram, Vishnu Ram Ov
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Patent number: 8144687Abstract: In the present technique of a communication system (100), an address of a forwarding agent (114) linked to a receiver node (112) is detected to provide a discovered address. The discovered address is then used to establish a direct route with the forwarding agent of the receiver node for subsequent communications between a sender node (104) and the receiver node.Type: GrantFiled: June 19, 2006Date of Patent: March 27, 2012Assignee: Motorola Mobility, Inc.Inventors: Anand S. Bedekar, Rajeev Agrawal, Venkat Gopikanth, Suresh Kalyanasundaram, Vishnu Ram OV
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Publication number: 20110230219Abstract: In a wireless communication system, a method includes assigning an initial portion of a list of resource block group for each of a plurality of cells such that the resource block groups are spread across the plurality of cells in a non-contiguous order spaced out in frequency. In addition, the method assigns a secondary portion of the list of resource block groups for each of a plurality of cells wherein the secondary portion is assigned in a reverse order and alternating from the initial portion of the list of resource block groups of each of the other plurality of cells.Type: ApplicationFiled: March 7, 2011Publication date: September 22, 2011Applicant: MOTOROLA, INC.Inventors: William N. Shores, Rajeev Agrawal, Anand S. Bedekar, Guang Han, Shawn W. Hogberg, Suresh Kalyanasundaram, Vivek P. Mhatre, Daniel R. Tayloe
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Patent number: 7908396Abstract: A method and a system for scheduling requests generated for a plurality of mobile devices in a communication network (100) has been disclosed. The requests are generated for a transmission opportunity. The method includes computing a sort metric (302) for each request, based on an information update. A lead-time is then computed (304) with respect to a drop-dead time for each request, based on the sort metric for a time slice. The drop-dead time for a given time slice is the time before which scheduling has to be done so that data can be transmitted during the given time slice. Each request may be considered (306) for allocation in the time slice before the beginning of a next time slice, based on the lead-time.Type: GrantFiled: November 30, 2005Date of Patent: March 15, 2011Assignee: Motorola Mobility, Inc.Inventors: Suresh Kalyanasundaram, Rajeev Agrawal, Jay P. Jayapalan, Ivan N. Vukovic
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Publication number: 20100271962Abstract: A method and apparatus for estimating an available backhaul bandwidth in a femto-cell communication network includes a step (204, 304) of sending at least one defined data stream to at least one femto-cell. A next step (206, 306) includes measuring a delay of the at least one defined data stream at the at least one femto-cell. A next step (208, 308) includes estimating, from the delay of the at least one defined data stream, a backhaul bandwidth availability.Type: ApplicationFiled: April 22, 2009Publication date: October 28, 2010Applicant: MOTOROLA, INC.Inventors: Guang Han, Rajeev Agrawal, Anand S. Bedekar