Patents by Inventor Suresh Kalyanasundaram

Suresh Kalyanasundaram 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: 9344934
    Abstract: A wireless access point (102) detects an indicia of a change in wireless connectivity of a mobile station (101) with respect to itself and another wireless access point (103). The wireless access point then automatically effects at least one of establishing a communication between itself and the second wireless access point regarding the change in wireless connectivity and/or establishing a temporary data tunnel as between itself and the second wireless access point. These network elements can also act to automatically establish a data flow path for the mobile station as between the second wireless access point and a network element (such as a mobility management agent (105)) that is external to the common subnet. In a preferred approach this comprises, at least in part, automatically sending a registration request to the network element other than in response to a specific request from the mobile station to send such a registration request.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: May 17, 2016
    Assignee: Google Technology Holdings LLC
    Inventors: Anand S. Bedekar, Rajeev Agrawal, Venkat Gopikanth, Suresh Kalyanasundaram, Vishnu Ram OV
  • Publication number: 20160105834
    Abstract: Apparatuses, methods, computer programs, computer program products and computer-readable media regarding connection establishment robustness optimization are disclosed. Some example versions include calculating, at a base station, a switching metric for a user equipment served by the base station, the switching metric indicating whether the user equipment is to switch from a source cell to one of multiple target cells. The switching metric is calculated for a combination of the user equipment with a source cell and one of the multiple target cells. The base station determines whether to switch the user equipment from the source cell to one of the multiple target cells based on the switching metric, which includes spectral efficiencies of the user equipment for both the source cell and one of the multiple target cells, current cell load values for both the source cell and one of the multiple target cells and a correction factor.
    Type: Application
    Filed: October 13, 2015
    Publication date: April 14, 2016
    Inventors: Richa GUPTA, Balamurali NATARAJAN, Suresh KALYANASUNDARAM
  • Publication number: 20160066335
    Abstract: A communication terminal is described comprising a quality determiner configured to determine a quality parameter for a wireless communication link between the communication terminal and a radio access network component based on one or more signals received via the wireless communication link, a throughput determiner configured to determine, based on the quality parameter, a throughput of a communication connection between the radio access network component and a server to be used for transmitting data from the server to the communication terminal via the communication connection and the wireless communication link and a controller configured to send an instruction for the server to transmit data via the communication connection between the radio access network component and the server according to the determined throughput.
    Type: Application
    Filed: August 29, 2014
    Publication date: March 3, 2016
    Inventors: THORSTEN CLEVORN, CHRISTIAN DREWES, DIVYAPRAKASH BHOJKUMAR, SURESH KALYANASUNDARAM, RAFAL CIECHANOWSKI, HABIB DJANDJI
  • Patent number: 9160662
    Abstract: The present disclosure is directed to a method for reporting uplink buffer status of a relay station to a base station in a wireless network. The method includes monitoring an uplink buffer of the relay station communicating with the base station, where the uplink buffer comprises data to be transmitted from one or more user terminals to the base station. The method further includes sending an uplink buffer status report from the relay station to the base station, where the uplink buffer status report includes occupancy status information of the monitored uplink buffer and a number of user terminals having data queued up at the relay station to be transmitted to the base station.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: October 13, 2015
    Assignee: Google Technology Holdings LLC
    Inventors: Balamurali N. Natarajan, Suresh Kalyanasundaram, Vinod Kumar Ramachandran
  • Patent number: 9031047
    Abstract: A wireless access point (300A, 300B, 300C) provides (101) a surrogate Internet Protocol address to use on behalf of a mobile station (401). That wireless access point then uses (102) that surrogate Internet Protocol address along with its own Internet Protocol address to facilitate establishing one or more data tunnels as necessary to support the communication needs of the mobile station.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: May 12, 2015
    Assignee: Google Technology Holdings LLC
    Inventors: Anand S. Bedekar, Rajeev Agrawal, Venkat Gopikanth, Suresh Kalyanasundaram, Vishnu Ram Ov
  • Patent number: 9026152
    Abstract: Mobile station information is exchanged between a plurality of distributed mobility agents (106, 108). The exchange is initiated by a mobility agent (106) associated with a last known network access point (110) that has communicated with the mobile station (114). The mobile station (114) is paged from at least one network access point using an available air interface technology to interface with the mobile station (114) and using the mobile station information. No centralized controller is used in the paging.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: May 5, 2015
    Assignee: Google Technology Holdings LLC
    Inventors: Anand S. Bedekar, Rajeev Agrawal, Venkat Gopikanth, Suresh Kalyanasundaram, Vishnu Ram Ov
  • Publication number: 20150063222
    Abstract: 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: Application
    Filed: February 7, 2014
    Publication date: March 5, 2015
    Applicant: NOKIA SOLUTIONS AND NETWORKS OY
    Inventors: Xiaoyi WANG, Eugene VISOTSKY, Anand BEDEKAR, Bishwarup MONDAL, Rajeev AGRAWAL, Naveen ARULSELVAN, Suresh KALYANASUNDARAM, Troels Emil KOLDING, Hans KROENER
  • Publication number: 20150065108
    Abstract: 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: Application
    Filed: September 4, 2013
    Publication date: March 5, 2015
    Applicant: NOKIA SIEMENS NETWORKS OY
    Inventors: Anand BEDEKAR, Rajeev AGRAWAL, Suresh KALYANASUNDARAM, Naveen ARULSELVAN, Troels Emil KOLDING, Hans KROENER
  • Publication number: 20150009961
    Abstract: In a communication system (100) where a wireless relay node (RN) (114) relays data packets between a Node B (112) and a user equipment (UE) (102), the RN receives (608) a data packet from the Node B via a first wireless link (115), conveys (614) the received data packet to the UE via a second wireless link (120), determines (616) whether the UE is likely to handoff, and in response to determining that the UE is likely to handoff, delays conveying (620, 622) an acknowledgment of the data packet to the Node B until an acknowledgment has been received from the UE. In another embodiment, the RN may use a status report (720) to inform the Node B of data packets that have not been transmitted to the UE or that have been transmitted to the UE but for which an acknowledgement has not been received from the UE.
    Type: Application
    Filed: September 23, 2014
    Publication date: January 8, 2015
    Inventors: Balamurali N. Natarajan, Naveen Arulselvan, Manjari Chhawchharia, Vihang G. Gangaram Kamble, Suresh Kalyanasundaram
  • Patent number: 8929280
    Abstract: 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: Grant
    Filed: June 4, 2007
    Date of Patent: January 6, 2015
    Assignee: Motorola Mobility LLC
    Inventors: Anand S. Bedekar, Rajeev Agrawal, Suresh Kalyanasundaram
  • Patent number: 8897223
    Abstract: In a communication system (100) where a wireless relay node (RN) (114) relays data packets between a Node B (112) and a user equipment (UE) (102), the RN receives (608) a data packet from the Node B via a first wireless link (115), conveys (614) the received data packet to the UE via a second wireless link (120), determines (616) whether the UE is likely to handoff, and in response to determining that the UE is likely to handoff, delays conveying (620, 622) an acknowledgment of the data packet to the Node B until an acknowledgment has been received from the UE. In another embodiment, the RN may use a status report (720) to inform the Node B of data packets that have not been transmitted to the UE or that have been transmitted to the UE but for which an acknowledgement has not been received from the UE.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: November 25, 2014
    Assignee: Motorola Mobility LLC
    Inventors: Balamurali Natarajan, Naveen Arulselvan, Manjari Chhawchharia, Vihang G. Gangaram Kamble, Suresh Kalyanasundaram
  • Patent number: 8897798
    Abstract: 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: Grant
    Filed: December 16, 2011
    Date of Patent: November 25, 2014
    Assignee: Nokia Siemens Networks Oy
    Inventors: Rajeev Agrawal, Naveen Arulselvan, Suresh Kalyanasundaram, Rangsan Leelahakriengkrai, Balamurali Natarajan, Hua Xu
  • Publication number: 20140321342
    Abstract: Systems and techniques for discontinuous reception management for user devices communicating using carrier aggregation. Information relating to discontinuous reception for a user device is received and used to determine discontinuous reception states of the user device. The information relating to discontinuous reception may include, for example, past scheduling information, information received at one scheduler and reporting scheduling information for another scheduler, or discontinuous reception information managed at a media access control layer of a base station. The discontinuous reception information may be used for scheduling of a plurality of carriers used for carrier aggregation by a user device, with scheduling for each carrier being performed by a scheduler dedicated to that carrier.
    Type: Application
    Filed: April 26, 2013
    Publication date: October 30, 2014
    Applicant: Nokia Siemens Networks Oy
    Inventors: Suresh Kalyanasundaram, Balamurali Natarajan, Joseph Lester
  • Patent number: 8873490
    Abstract: A method includes determining semi-persistent scheduling acknowledge/negative acknowledge (SPS AN) resources; configuring as a first metric for each SPS AN resource a number of user equipments (UEs) for which the SPS AN resource has been configured but is not activated; configuring as a second SPS AN resource a count of a number of sub-frames in which the SPS AN resource has been activated for a UE; configuring as a third metric for each SPS AN resource a number of UEs for which the resource is configured but some other SPS AN resource is allocated; forming a fourth metric using the first, second and third metrics; selecting N SPS AN resources from the SPS AN resources based at least on the fourth metric; and selecting one of the N SPS AN resources based at least on the fourth metric when the UE is activated for SPS operation.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: October 28, 2014
    Assignee: Nokia Siemens Networks Oy
    Inventors: Suresh Kalyanasundaram, Vihang G. Kamble, Naveen Arulselvan, Balamurali Natarajan
  • Patent number: 8855253
    Abstract: Apparatus, methods, and programs products are disclosed that perform the following techniques: in a receiver comprising first and second stages, each stage at least decoding information corresponding to a user equipment, wherein the second stage performs decoding only if the first stage completes decoding with a fail, predicting whether decoding performed by the second stage for the user equipment will complete with a pass or fail; and prior to completion of the second stage, sending an indication of the predicted pass or fail to the user equipment.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: October 7, 2014
    Assignee: Nokia Siemens Networks Oy
    Inventors: Suresh Kalyanasundaram, Shirish Nagaraj, Raghavendra M. Ramakrishna
  • Patent number: 8797988
    Abstract: 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: Grant
    Filed: July 17, 2012
    Date of Patent: August 5, 2014
    Assignee: Nokia Siemens Networks Oy
    Inventors: Balamurali Natarajan, Rajeev Agrawal, Suresh Kalyanasundaram
  • Patent number: 8711723
    Abstract: A method, system, and base station for providing subband signal to noise ratio (SNR) correction in the scheduling of communication resources. A Scheduling Correction (SC) utility receives periodic subband and wideband channel quality indicator (CQI) reports from one or more wireless devices. The SC utility records a subframe report period for a respective subband CQI report. The SC utility calculates the age of the subband report to determine whether the subband CQI report remains valid. If the subband report is invalid, the SC utility utilizes the wideband CQI report for (current) transmission scheduling. However, if the subband report is valid, the SC utility utilizes: (a) the subband CQI report for transmission scheduling from the most current reporting subframe; or (b) a modified subband CQI value with a correction that utilizes the wideband CQI report, if the subband CQI report was not received at the most current reporting subframe.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: April 29, 2014
    Assignee: Motorola Mobility LLC
    Inventors: Vihang Gangaram Kamble, Manjari Chhawchharia, Suresh Kalyanasundaram
  • Publication number: 20130242883
    Abstract: A method includes determining semi-persistent scheduling acknowledge/negative acknowledge (SPS AN) resources; configuring as a first metric for each SPS AN resource a number of user equipments (UEs) for which the SPS AN resource has been configured but is not activated; configuring as a second metric for each SPS AN resource a count of a number of sub-frames in which the SPS AN resource has been activated for a UE; configuring as a third metric for each SPS AN resource a number of UEs for which the resource is configured but some other SPS AN resource is allocated; forming a fourth metric using the first, second and third metrics; selecting N SPS AN resources from the PS AN resources based at least on the fourth metric; and selecting one of the N SPS AN resources based at least on the fourth metric when the UE is activated for SPS operation.
    Type: Application
    Filed: July 11, 2012
    Publication date: September 19, 2013
    Inventors: Suresh Kalyanasundaram, Vihang G. Kamble, Naveen Arulselvan, Balamurali Natarajan
  • Publication number: 20130229989
    Abstract: 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: Application
    Filed: July 17, 2012
    Publication date: September 5, 2013
    Inventors: Balamurali NATARAJAN, Rajeev AGRAWAL, Suresh KALYANASUNDARAM
  • Publication number: 20130223501
    Abstract: Apparatus, methods, and programs products are disclosed that perform the following techniques: in a receiver comprising first and second stages, each stage at least decoding information corresponding to a user equipment, wherein the second stage performs decoding only if the first stage completes decoding with a fail, predicting whether decoding performed by the second stage for the user equipment will complete with a pass or fail; and prior to completion of the second stage, sending an indication of the predicted pass or fail to the user equipment.
    Type: Application
    Filed: June 5, 2012
    Publication date: August 29, 2013
    Inventors: Suresh Kalyanasundaram, Shirish Nagaraj, Raghavendra M. Ramakrishna