Patents by Inventor Chandrika Worrall

Chandrika Worrall 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: 8761091
    Abstract: A method of signaling in a wireless communication system (300) comprising a first network element (310) serving a wireless communication unit (325) with at least one packet data network (PDN) connection. The method comprises transmitting, by the first network element (310) to the wireless communication unit (325), a signaling message relating to a wireless communication unit (325) uplink (UL) PDN transmission, where the signaling message comprises a parameter indicative of at least one aggregate maximum bit rate (AMBR) value.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: June 24, 2014
    Assignee: Sony Corporation
    Inventors: Haris Zisimopoulos, Chandrika Worrall
  • Publication number: 20140140260
    Abstract: A method and an apparatus for initiating a Multimedia Broadcast/Multicast Service (MBMS) service reception status report are disclosed in the present invention. The method includes: a User Equipment (UE) automatically obtaining its MBMS service reception status information, wherein the MBMS service reception status information at least includes a service identification of an MBMS service being received by the UE; sending the MBMS service reception status information of the UE, which can be used by the base station to make a decision for the UE handover, to a base station. According to the invention, an initiating mechanism for initiating an MBMS service reception status report by the UE autonomously is provided, therefore providing the MBMS service reception status information for a network to make End a decision for the UE handover, while keeping a good continuity of the MBMS service possibly.
    Type: Application
    Filed: April 25, 2012
    Publication date: May 22, 2014
    Applicant: ALCATEL LUCENT
    Inventors: He Wang, Chandrika Worrall
  • Publication number: 20140050168
    Abstract: A method of signaling in a wireless communication system (300) comprising a first network element (310) serving a wireless communication unit (325) with at least one packet data network (PDN) connection. The method comprises transmitting, by the first network element (310) to the wireless communication unit (325), a signaling message relating to a wireless communication unit (325) uplink (UL) PDN transmission, where the signaling message comprises a parameter indicative of at least one aggregate maximum bit rate (AMBR) value.
    Type: Application
    Filed: October 10, 2013
    Publication date: February 20, 2014
    Applicant: Sony Corporation
    Inventors: Haris ZISIMOPOULOS, Chandrika Worrall
  • Publication number: 20140044075
    Abstract: A method of signaling in a wireless communication system (300) comprising a first network element (310) serving a wireless communication unit (325) with at least one packet data network (PDN) connection. The method comprises transmitting, by the first network element (310) to the wireless communication unit (325), a signaling message relating to a wireless communication unit (325) uplink (UL) PDN transmission, where the signaling message comprises a parameter indicative of at least one aggregate maximum bit rate (AMBR) value.
    Type: Application
    Filed: October 10, 2013
    Publication date: February 13, 2014
    Applicant: Sony Corporation
    Inventors: Haris Zisimopoulos, Chandrika Worrall
  • Publication number: 20140036836
    Abstract: A method of signaling in a wireless communication system (300) comprising a first network element (310) serving a wireless communication unit (325) with at least one packet data network (PDN) connection. The method comprises transmitting, by the first network element (310) to the wireless communication unit (325), a signaling message relating to a wireless communication unit (325) uplink (UL) PDN transmission, where the signaling message comprises a parameter indicative of at least one aggregate maximum bit rate (AMBR) value.
    Type: Application
    Filed: October 9, 2013
    Publication date: February 6, 2014
    Applicant: Sony Corporation
    Inventors: Haris ZISIMOPOULOS, Chandrika Worrall
  • Patent number: 8599778
    Abstract: A method of signaling in a wireless communication system (300) comprising a first network element (310) serving a wireless communication unit (325) with at least one packet data network (PDN) connection. The method comprises transmitting, by the first network element (310) to the wireless communication unit (325), a signaling message relating to a wireless communication unit (325) uplink (UL) PDN transmission, where the signaling message comprises a parameter indicative of at least one aggregate maximum bit rate (AMBR) value.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: December 3, 2013
    Assignee: Sony Corporation
    Inventors: Haris Zisimopoulous, Chandrika Worrall
  • Publication number: 20130242837
    Abstract: Embodiments of the present invention provide an improved method and apparatus for processing an uplink component carrier hybrid automatic repeat request process. The method comprises: receiving an indication that a downlink component carrier is de-activated; stopping receiving a physical hybrid retransmission indicator channel from the de-activated downlink component carrier; and stopping processing an uplink component carrier hybrid automatic repeat request process scheduled by the de-activated downlink component carrier.
    Type: Application
    Filed: September 14, 2011
    Publication date: September 19, 2013
    Applicant: ALCATEL LUCENT
    Inventors: Tao Yang, Chandrika Worrall
  • Publication number: 20130223271
    Abstract: The eNB of a first cell being interfered by at least one second cell, obtains pattern information, from the eNB of the second cell or network configuration, indicating almost blank subframes that are configured by the eNB of the second cell or the network configuration; determines measurement signalling indicating subframes; and sends the measurement signalling to the UE. The UE in the first cell receives the measurement signalling from the serving eNB, the measurement signalling comprising at least one pattern information recommended by at least one second cell or network configuration, each of the pattern information indicating at least one almost blank subframe that is configured by the corresponding second cell; determines the resource used for measurement according to the measurement signalling; and carries out measurement on the determined resource.
    Type: Application
    Filed: November 10, 2010
    Publication date: August 29, 2013
    Applicant: ALCATEL LUCENT
    Inventors: Haiyang Huang, Matthew Baker, Teck Hu, Qi Jiang, Gang Shen, Sudeep Palat, Chandrika Worrall
  • Publication number: 20130215822
    Abstract: The present invention relates to a donor radio access node (DeNB1) configured to wirelessly connect to, and to proxy operation of a source relay node (RN1), and further configured to forward upstream user traffic towards a serving gateway (S-GW1) during a handover of a particular mobile device (UE1) from a source cell (A) operated by the source relay node to a target cell (C) operated by a target radio access node (eNB2).
    Type: Application
    Filed: October 11, 2011
    Publication date: August 22, 2013
    Applicant: ALCATEL LUCENT
    Inventors: Chandrika Worrall, Sudeep Palat
  • Publication number: 20130089057
    Abstract: The invention proposes the method and device for delivery BSR information to assist efficient scheduling. It introduces at least one additional table (also called extended table) which indicates the buffer statues corresponding to the higher data rates than the existing table. The use of the at least one additional table is identified by new identification(s), more specifically one or more Logical channel ID. The signaling uses MAC layer signaling as in ReI.8/9. In an embodiment of the present invention, the new MAC CE is designed to guarantee the co-existence of ReI.8/9 and ReI.10 buffer status reporting depending on low or high data rates.
    Type: Application
    Filed: June 21, 2010
    Publication date: April 11, 2013
    Applicant: ALCATEL LUCENT
    Inventors: Chandrika Worrall, Pingping Wen
  • Publication number: 20130083720
    Abstract: The invention proposes a method of transmitting a multimedia broadcast multicast service reception status message, wherein a terminal receives a radio resource control message from a base station; determines whether the radio resource control message satisfies a predetermined condition; and if the radio resource control message satisfies the predetermined condition, then the terminal transmits the multimedia broadcast multicast service reception status message to the base station, wherein the multimedia broadcast multicast service reception status message is used for identifying a multimedia broadcast multicast service being received by the terminal With the technical solution of the invention, the base station can obtain a reception status message, transmitted by the terminal, of at least one multimedia broadcast multicast service at the terminal side to thereby count the number of broadcast or multicast receiving users of the multimedia broadcast multicast service in operation and perform other relevant pro
    Type: Application
    Filed: June 21, 2010
    Publication date: April 4, 2013
    Applicant: ALCATEL LUCENT
    Inventors: He Wang, Chandrika Worrall
  • Publication number: 20120307717
    Abstract: The present invention relates to a method for performing a random access procedure by a relay node operating in inband relaying mode in a wireless or radio communication network, comprising at least one base station adapted to communicate over a backhaul link with at least one relay node, said relay node being adapted to communicate over an access link with at least one user equipment, According to the present invention, the method comprises the steps of: —Configuring resources for said back-haul link and for said access link to be time-multiplexed at said relay node, —Sending messages of said random access procedure on resources configured for said backhaul link.
    Type: Application
    Filed: January 28, 2011
    Publication date: December 6, 2012
    Inventors: Chandrika Worrall, Seau Sian Lim, Sudeep Palat
  • Publication number: 20120127933
    Abstract: One embodiment of the method includes defining, at the user equipment, a range for the maximum output power. The range includes a maximum value and a minimum value. The minimum value is based on a maximum power signalled by a base station, a power class of the user equipment, a maximum power reduction permitted, an additional maximum power reduction permitted, a reduction term dependent on transmission bandwidth, and a power management term. The method further includes setting, at the user equipment, the maximum output power within the defined range.
    Type: Application
    Filed: October 24, 2011
    Publication date: May 24, 2012
    Applicants: ALCATEL-LUCENT USA INC.
    Inventors: Chandrika Worrall, Matthew Baker, Patrick Charriere, Fang-Chen Cheng
  • Publication number: 20120063370
    Abstract: A network element for a cellular communication system comprises a signal processing logic module arranged to: generate a single system information message; generate a variable si-Windowlength parameter for transmission to the at least one wireless communication unit; and determine availability for downlink transmissions to the at least one wireless communication unit.
    Type: Application
    Filed: December 9, 2009
    Publication date: March 15, 2012
    Inventor: Chandrika Worrall
  • Publication number: 20120008601
    Abstract: A method of scheduling an uplink (UL) data packet on a packet data network (PDN) connection of at least one radio bearer by a wireless communication unit comprises receiving, by the wireless communication unit, a signalling message comprising at least one scheduling priority parameter assigned to at least one uplink radio bearer, wherein the at least one scheduling priority parameter is based on at least one characteristic of the PDN connection that the radio bearer belongs to. The method further comprises determining, from the at least one scheduling priority parameter, at least one user transmission priority level associated with at least one PDN connection of at least one radio bearer; and scheduling at least one uplink data packet transmission in response to the at least one user transmission priority level.
    Type: Application
    Filed: August 18, 2011
    Publication date: January 12, 2012
    Applicant: WIRELESS TECHOLOGY SOLUTIONS LLC
    Inventors: Haris Zisimopoulos, Chandrika Worrall
  • Patent number: 8064382
    Abstract: A method of scheduling an uplink (UL) data packet on a packet data network (PDN) connection of at least one radio bearer by a wireless communication unit comprises receiving, by the wireless communication unit, a signalling message comprising at least one scheduling priority parameter assigned to at least one uplink radio bearer, wherein the at least one scheduling priority parameter is based on at least one characteristic of the PDN connection that the radio bearer belongs to. The method further comprises determining, from the at least one scheduling priority parameter, at least one user transmission priority level associated with at least one PDN connection of at least one radio bearer; and scheduling at least one uplink data packet transmission in response to the at least one user transmission priority level.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: November 22, 2011
    Assignee: Wireless Technology Solutions LLC
    Inventors: Haris Zisimopoulos, Chandrika Worrall
  • Publication number: 20090086705
    Abstract: A method of scheduling an uplink (UL) data packet on a packet data network (PDN) connection of at least one radio bearer by a wireless communication unit comprises receiving, by the wireless communication unit, a signalling message comprising at least one scheduling priority parameter assigned to at least one uplink radio bearer, wherein the at least one scheduling priority parameter is based on at least one characteristic of the PDN connection that the radio bearer belongs to. The method further comprises determining, from the at least one scheduling priority parameter, at least one user transmission priority level associated with at least one PDN connection of at least one radio bearer; and scheduling at least one uplink data packet transmission in response to the at least one user transmission priority level.
    Type: Application
    Filed: September 28, 2007
    Publication date: April 2, 2009
    Inventors: Haris ZISIMOPOULOS, Chandrika Worrall
  • Publication number: 20080043658
    Abstract: A method for obtaining feedback from one or more wireless subscriber communication unit(s) related to a broadcast service in a wireless communication system comprising at least one communication cell. The method comprises transmitting a request message by a network controller to one or more wireless subscriber communication unit(s); receiving and processing the request message by a wireless subscriber communication unit; transmitting a layer-1 response signal by the wireless subscriber communication unit in response to the request message; and detecting by the network controller the layer-1 response signal in a particular communication cell, and in response thereto, performs one of the following: (i) entering a point-to-multipoint broadcast mode of operation; (ii) modifying a delivery of the broadcast service in that communication cell.
    Type: Application
    Filed: July 31, 2007
    Publication date: February 21, 2008
    Applicant: IPWireless, Inc.
    Inventor: Chandrika Worrall
  • Publication number: 20070259675
    Abstract: Network-initated connection establishment employs base stations that affix a temporary identifier and a shared control channel index to a paging message. User equipment for which the paging message is intended responds with a paging acknowledgement. In response to the paging acknowledgement, the network establishes shared channel connectivity with the UE.
    Type: Application
    Filed: May 2, 2006
    Publication date: November 8, 2007
    Applicant: IPWireless, Inc.
    Inventor: Chandrika Worrall