Patents by Inventor Woonhee Hwang

Woonhee Hwang 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).

  • Publication number: 20110013597
    Abstract: Aspects of the present invention relate to methods and entities involved in enabling and improving inter-domain handover. A PS based RAN such as eUTRAN can identify which potential handover to prepare and which handover to initiate, PS-PS or SR-VCC based on: (1) the UE's SR-VCC capabilities, (2) “SR-VCC indication” from the MME, (3) active VoIP bearer, and (4) target cell capabilities.
    Type: Application
    Filed: March 23, 2009
    Publication date: January 20, 2011
    Applicant: NOKIA SIEMENS NETWORKS OY
    Inventors: Woonhee Hwang, Frank Mademann, Jari Mutikainen, Curt Wong
  • Patent number: 7869414
    Abstract: The area of the invention belongs to the transport technologies in UTRAN. This invention concerns a method for multiplexing a data stream onto a transport bearer between an originating network node and a receiving network node in a telecommunications network. This is done in order to ensure the effective usage of transport resources over the two interfaces, i.e. Iub/Iur. To accomplish this the RNC and/or Node B/RNC should check if the there already exists a transport bearer, which can be utilized for HS-DSCH transport over Iub/Iur interface. Because of this a transport bearer identification code or transport bearer id is needed to identify this bearer between RNC and Node B/RNC.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: January 11, 2011
    Inventors: Jari Isokangas, Sinikka Sarkkinen, Sami Kekki, Woonhee Hwang
  • Publication number: 20110002269
    Abstract: A method and a device for adapting a buffer of a terminal are provided, said method comprising the steps of (i) a network provides data to the terminal; and (ii) the terminal adapts its buffer based on the data provided. Furthermore, a communication system comprising such a device is provided.
    Type: Application
    Filed: December 18, 2008
    Publication date: January 6, 2011
    Applicant: NOKIA CORPORATION
    Inventors: Kari Markus Ranta-Aho, Antti Anton Toskala, Woonhee Hwang, Luis Miguel Santos Barreto
  • Publication number: 20100182912
    Abstract: In an embodiment, a network decides on quality of service, QoS, to be used for information flow between the network and a terminal, and on whether the terminal is to be informed on an unsuccessful resource reservation needed for providing the quality of service. The network informs the terminal depending on the decision result. An application running in the terminal, such as a QoS aware application, is provided with information about failure in resource reservation, and a session setup is canceled, or a default QoS is used, or session parameters are renegotiated, in response to the information about failure.
    Type: Application
    Filed: September 26, 2007
    Publication date: July 22, 2010
    Applicant: NOKIA CORPORATION
    Inventors: Jukka Hongisto, Stefan Baggstrom, Mari-Jaana Pelkonen, Kaisu IIsakkila, Woonhee Hwang
  • Patent number: 7742470
    Abstract: A method of assigning resources within a network element within which a traffic termination point or AAL2 termination point has been established is described. The network element accepts a connection request, and it is then ascertained whether available resources have sufficient capacity to establish the requested connection. In the event that there is sufficient capacity, it is ascertained whether the termination points defined in relation to the available resources fragments the resources such that the connection cannot be established. If the resources are so fragmented, then one or more of the termination points are reallocated, without breaking the connection to which they relate, thereby defragmenting the resources sufficiently that the requested connection can be established.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: June 22, 2010
    Assignee: Nokia Corporation
    Inventors: Woonhee Hwang, Jukka Marin
  • Patent number: 7733816
    Abstract: GERAN Cell Capability indicated in a bit of an Information Element is modified to indicate whether a neighbor GERAN cell belonging to a radio access technology (GSM) supports packet switched (PS) handover or not so that the serving radio network controller can be in possession of such information before deciding whether to attempt PS handover to the cell of the GSM network and thereby avoid unnecessary signaling in case such a handover is not possible and to thereby allow the serving radio network controller to consider some other target cell or some other solution than triggering PS handover toward that GSM cell.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: June 8, 2010
    Inventor: Woonhee Hwang
  • Patent number: 7688854
    Abstract: A protocol (and corresponding equipment) for use in communicating between a sending node (11) and a receiving node (12) a frame (10) including a Spare Extension (SE) section conveying values for one or more information element (IE) fields, and also including a New IE Flags IE or other device for indicating to the receiving node (12) whether the SE section includes valid data for each IE in the SE section. A flag indicating whether valid data is provided in the SE section can be used, and also an IE indicating the length of the SE section. The protocol is such that the receiving node (12) treats an IE field value occurring in the SE section as spare bits if the IE field was introduced for a version of a later release of a specification than that according to which the receiving node (12) was implemented.
    Type: Grant
    Filed: September 1, 2004
    Date of Patent: March 30, 2010
    Assignee: Nokia Corporation
    Inventor: Woonhee Hwang
  • Publication number: 20100075667
    Abstract: In an exemplary aspect of the invention there is a method comprising receiving cell-related information from a first access node at a second access node, and using the cell-related information during at least one of a handover and a radio resource control (RRC) related operation. Where the use of the exemplary embodiments of this invention include, but are not limited to, reducing handover execution time, reducing the signaling load related to an unsuccessful handover and/or radio resource control related procedures, and reducing the need of a user equipment to measure unnecessary cells.
    Type: Application
    Filed: February 12, 2008
    Publication date: March 25, 2010
    Applicant: NOKIA CORPORATION
    Inventors: Masatoshi Nakamata, Woonhee Hwang
  • Publication number: 20090232078
    Abstract: A channel inverse multiplexer/multiplexer (IMUX/MUX) (14a) of a MAC sublayer (14) of a UTRAN RNC (11) for providing to a UE (18) traffic (communication signals including in general both control and user data) at a higher rate than the UE can accept over a single channel. The channel IMUX/MUX performs inverse multiplexing of traffic for downlink, and multiplexing of traffic on uplink, and does so in a way that is transparent to all other layers/entities of the UTRAN (11 17) and to the UE (18).
    Type: Application
    Filed: April 20, 2009
    Publication date: September 17, 2009
    Applicant: Spyder Navigations L.L.C.
    Inventors: Sami Kekki, Jari Isokangas, Woonhee Hwang, Sinikka Sarkkinen
  • Patent number: 7539212
    Abstract: A channel inverse multiplexer/multiplexer (IMUX/MUX) (14a) of a MAC sublayer (14) of a UTRAN RNC (11) for providing to a UE (18) traffic (communication signals including in general both control and user data) at a higher rate than the UE can accept over a single channel. The channel IMUX/MUX performs inverse multiplexing of traffic for downlink, and multiplexing of traffic on uplink, and does so in a way that is transparent to all other layers/entities of the UTRAN (11-17) and to the UE (18).
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: May 26, 2009
    Inventors: Sami Kekki, Jari Isokangas, Woonhee Hwang, Sinikka Sarkkinen
  • Publication number: 20090129342
    Abstract: In accordance with the exemplary embodiments of the invention there is a method, executable computer program, and apparatus for receiving information including at least one packet data protocol context of a target network, and based on the information, for mapping in a source network at least one bearer to the at least one packet data protocol context. In addition, in accordance with another exemplary embodiment of the invention there is a method, executable computer program, and apparatus for receiving from a source network device information comprising an indication of at least one bearer mapped to the at least one packet data protocol context of a target network, and storing the received information for use in a handover.
    Type: Application
    Filed: November 14, 2008
    Publication date: May 21, 2009
    Inventors: Woonhee Hwang, Kaisu M. Iisakkila, Mari-Jaana S. Pelkonen, Stefan M. Baggstrom, Jukka I. Hongisto
  • Publication number: 20090080342
    Abstract: The specification and drawings present a new method, system, apparatus and software product for determining (e.g., calculating) a load measure by a network element (e.g., Node B or any other network element) for optimizing information traffic in communication networks (e.g., wireless communication systems). This load measure may represent the amount of available/excess traffic that a given network element may carry and is a relative measure, which would take into account the total amount of resources available in the system and the amount of resources that are free for carrying only “important” or “essential” traffic, using a weighed method described herein.
    Type: Application
    Filed: May 6, 2008
    Publication date: March 26, 2009
    Inventors: Frank Frederiksen, Klaus Pedersen, Woonhee Hwang, Troels Kolding, Preben Mogensen
  • Patent number: 7489691
    Abstract: The present invention relates to a method and system for scheduling data packets in a base station device of an access network. An information indicating a retransmission status of a data packet is provided to the base station device, and a scheduling priority is allocated to the data packet based on the retransmission status information. Thereby, retransmission packets can be scheduled earlier and round trip times can be reduced, so as to decrease the risk of timeouts and stalling and to loosen buffer requirements.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: February 10, 2009
    Assignee: Nokia Corporation
    Inventors: Jeroen Wigard, Troels Kolding, Preben Mogensen, Pablo Ameigeiras, Woonhee Hwang, Hannu Häkkinen
  • Publication number: 20080254782
    Abstract: RNCs are assigned different bit length identifiers, for example 12 bits (legacy) and 16 bits (extended). To enable handovers between adjacent RNCs with different bit length identifiers, several solutions are presented. In a first solution, no logical/direct connection is configured between the adjacent RNCs having different bit length identifiers at least for the case where the value of the longer identifier is not compatible with the shorter identifier. In a second solution, some RNCs are given both a long and a short identifier, and use the one matching the length of the RNC with which a handover occurs. In a third solution, for all adjacent RNCs with an Iur logical connection between them but still having different bit length identifiers, the most significant bits of the longer identifier are not the same as the whole of the shorter bit length identifier. Multiple variations and examples are presented, and implementations include method, apparatus, embodied computer program, and integrated circuit.
    Type: Application
    Filed: January 29, 2008
    Publication date: October 16, 2008
    Inventors: Masatoshi Nakamata, Woonhee Hwang, Sami Kekki
  • Publication number: 20080062932
    Abstract: High speed data packet access (HSDPA) is facilitated by ensuring that power offsets are delivered to the base station (Node B) so that the new functions envisioned therefor having to do with scheduling and retransmission handling can be carried out effectively. A signal primitive having one or more information elements indicative of corresponding power offsets are received by the Node B, saved for future use and then signalled back to the serving radio network controller so that the user equipment can be informed with a proper RRC message containing the appropriate power offsets.
    Type: Application
    Filed: October 31, 2007
    Publication date: March 13, 2008
    Inventor: Woonhee Hwang
  • Patent number: 7343172
    Abstract: High speed data packet access (HSDPA) is facilitated by ensuring that power offsets are delivered to the base station (Node B) so that the new functions envisioned therefor having to do with scheduling and retransmission handling can be carried out effectively. A signal primitive having one or more information elements indicative of corresponding power offsets are received by the Node B, saved for future use and then signalled back to the serving radio network controller so that the user equipment can be informed with a proper RRC message containing the appropriate power offsets.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: March 11, 2008
    Assignee: Nokia Corporation
    Inventor: Woonhee Hwang
  • Patent number: 7317700
    Abstract: A method by which resources of a cell under the supervision of a controlling radio network controller (CRNC) are reserved for providing high speed downlink packet access via a high speed downlink shared channel (HS-DSCH) having one or more corresponding physical channels (HS-PDSCHs), the method including as steps: a step (61) in which the CRNC for the Node B serving the cell sends to the Node B a message conveying cell-specific high speed downlink packet access HSDPA information indicating codes for the HS-DSCH and for an associated high speed shared control channel (HS-SCCH) and also indicating a maximum allowed value for the combined power of the HS-SCCH and the HS-PDSCHs; and a step (63) in which the Node B communicates to the CRNC a cell-specific HSDPA resource response indicating either the resources the Node B has reserved or indicating only whether or not all the resources requested by CRNC were successfully reserved.
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: January 8, 2008
    Assignee: Nokia Corporation
    Inventor: Woonhee Hwang
  • Publication number: 20070189223
    Abstract: High speed data packet access (HSDPA) is facilitated by ensuring that power offsets are delivered to the base station (Node B) so that the new functions envisioned therefor having to do with scheduling and retransmission handling can be carried out effectively. A signal primitive having one or more information elements indicative of corresponding power offsets are received by the Node B, saved for future use and then signalled back to the serving radio network controller so that the user equipment can be informed with a proper RRC message containing the appropriate power offsets.
    Type: Application
    Filed: April 5, 2007
    Publication date: August 16, 2007
    Inventor: Woonhee Hwang
  • Publication number: 20070099664
    Abstract: GERAN Cell Capability indicated in a bit of an Information Element is modified to indicate whether a neighbor GERAN cell belonging to a radio access technology (GSM) supports packet switched (PS) handover or not so that the serving radio network controller can be in possession of such information before deciding whether to attempt PS handover to the cell of the GSM network and thereby avoid unnecessary signaling in case such a handover is not possible and to thereby allow the serving radio network controller to consider some other target cell or some other solution than triggering PS handover toward that GSM cell.
    Type: Application
    Filed: November 1, 2006
    Publication date: May 3, 2007
    Inventor: Woonhee Hwang
  • Publication number: 20070070949
    Abstract: A method, mobile device, network device, system, and software product are presented for providing an indication whether a source radio network controller requests to receive system information from a handover target, and for receiving the system information in a target to source transparent container, if the indication requests to receive the system information.
    Type: Application
    Filed: September 28, 2006
    Publication date: March 29, 2007
    Inventors: Woonhee Hwang, Olivier Guyot, Antti Kangas