Patents by Inventor Sang-Gook Kim

Sang-Gook Kim 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: 8411618
    Abstract: The present invention relates to a wireless communication system and, more particularly, to a method of transmitting and receiving frame in a wireless communication system. A method for transmitting a frame of a base station in a wireless communication system comprises the steps of transmitting a first region of the frame to a mobile station by using a first traffic to pilot ratio (hereinafter referred to as “TPR”); and transmitting a second region of the frame to the mobile station by using a second TPR, wherein the second TPR is different from the first TPR.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: April 2, 2013
    Assignee: LG Electronics Inc.
    Inventors: Sang Gook Kim, Li-Hsiang Sun, Byung Kwan Yi, Dong Wook Roh
  • Publication number: 20130051338
    Abstract: A method and apparatus for small packet transmission in response to machine type communication (MTC) device trigger indication are provided. For uplink (UL) transmission of small packet from MTC device in idle state, a tracking area update (TAU) complete non-access stratum (NAS) message is used to protect integrity and confidentiality of UL small packet transmission without attach/service request procedure during idle state. For downlink (DL) transmission of small packet from MTC device in idle state, a TAU accept NAS message is used to protect integrity & confidentiality of DL small packet reception without attach/service request procedure during idle state.
    Type: Application
    Filed: August 24, 2012
    Publication date: February 28, 2013
    Inventors: Ki Seon RYU, Sang Gook Kim, Ki Dong Lee
  • Publication number: 20130051325
    Abstract: A method and apparatus for extended access barring (EAB) in a wireless communication system. In the proposed method, EAB application information is defined. Further, a base station is configured to send random access (RA) response within RA response window if it receives any random access preamble, so RA response window should be set as the minimum time duration UE should check the existence of RA response. In the proposed method, the UE configured with EAB should wait the duration of RA response window to receive RA response before skipping initial EAB checking. If RA response window passed and no RA response received, UE skips EAB checking in case of initial random access preamble transmission.
    Type: Application
    Filed: August 29, 2012
    Publication date: February 28, 2013
    Inventors: Ki Seon Ryu, Sang Gook Kim, Ki Dong Lee
  • Patent number: 8369214
    Abstract: The present invention relates to a method of transmitting and receiving data in soft handoff of a wireless communication system. According to an aspect of the present invention, in the method of receiving data in soft handoff of a wireless communication system, a mobile station receives a first sequence being generated by interleaving transmission data using a first interleaver pattern, and also receives a second sequence being generated by interleaving the transmission data using a second interleaver pattern. Then, the mobile station combines and decodes the first sequence and the second sequence before receiving an entire frame having the first sequence allocated thereto.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: February 5, 2013
    Assignee: LG Electronics Inc.
    Inventors: Ki Jun Kim, Byung Kwan Yi, Sang Gook Kim, Dong Wook Roh
  • Patent number: 8274927
    Abstract: A method for receiving data at different frequencies includes receiving a first transmission packet including data at a first carrier frequency, and receiving a second transmission packet comprising data at a second carrier frequency. The method further includes maintaining communication with transmission entities which transmit the first and second transmission packets, and identifying reception quality of the first and second transmission packets. In addition, a method for retransmitting subpackets includes transmitting a first subpacket of a packet transmission from at least two transmitting entities. Upon receiving a non-acknowledgement NACK generated responsive to the first subpacket, the method further includes alternating transmission of subsequent subpackets from different transmitting entities. Upon receiving an acknowledgement ACK generated responsive to any subpackets of the packet transmission, the method further includes transmitting a first subpacket of a new packet transmission.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: September 25, 2012
    Assignee: LG Electronics Inc.
    Inventors: Sang Gook Kim, Young C. Yoon, Soonyil Kwon, Shu Wang, Suk Woo Lee, Li-Hsiang Sun, Hobin Kim
  • Patent number: 8261168
    Abstract: The present invention relates to a method for transmitting a signal in a wireless communication system. The method includes channel coding a data stream using a first turbo encoded puncture pattern, and channel coding the data stream using a second turbo encoded puncture pattern. Preferably, the first turbo encoded puncture pattern is a turbo encoded puncture pattern of a first local operator infrastructure (LOI) and the second turbo encoded puncture pattern is a turbo encoded puncture pattern of a second LOI that neighbors the first LOI.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: September 4, 2012
    Assignee: LG Electronics Inc.
    Inventors: Shu Wang, Byung Kwan Yi, Sang Gook Kim, Soon Yil Kwon
  • Patent number: 8248923
    Abstract: Automatic provisioning of an access point base station or femtocell. The method may include the femtocell transmitting first information (e.g., location information, signal measurement information, capability information, etc.) to a service provider (e.g., over an IP network). The femtocell may receive second information from the service provider, where the second information includes one or more operational parameters. The operational parameters may include hand-off parameters, admission policy parameters, PN or scrambling codes, power parameters, and/or other parameters. The femtocell may operate according to the received parameters to provide access for a plurality of access terminals in a local area.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: August 21, 2012
    Assignees: VIA Telecom, Inc., IPComm, LG Electronics, Inc.
    Inventors: Stanislaw Czaja, Mark E. Davis, Anthony Lee, Sang Gook Kim, Li-Hsiang Sun
  • Patent number: 8223683
    Abstract: Automatic provisioning of an access point base station or femtocell. The method may include the femtocell transmitting first information (e.g., location information, signal measurement information, capability information, etc.) to a service provider (e.g., over an IP network). The femtocell may receive second information from the service provider, where the second information includes one or more operational parameters. The operational parameters may include hand-off parameters, admission policy information, PN or scrambling codes, power parameters, and/or other parameters. The femtocell may operate according to the received parameters to provide access for a plurality of access terminals in a local area.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: July 17, 2012
    Assignees: VIA Telecom, Inc, IPComm, LG Electronics, Inc.
    Inventors: Stanislaw Czaja, Mark E. Davis, Anthony Lee, Sang Gook Kim, Li-Hsiang Sun
  • Patent number: 8213391
    Abstract: Time synchronization of an access point base station. The method may include receiving an assignment message from a service provider comprising a plurality of parameters. The plurality of parameters may include an access point base station frequency assignment, a network identifier, an access point base station identifier, a neighbor list, a PN offset, and/or a scrambling code. The access point base station may then synchronize with the macro base station. Synchronizing may include searching for a strongest macro base station in the neighbor list, synchronizing a long code of the access point base station to the macro base station, estimating a propagation delay between the macro base station and the access point base station, and initializing a state of the access point base station PN code using the propagation delay to provide system time synchronization.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: July 3, 2012
    Assignees: VIA Telecom, Inc., IPComm, LG Electronics, Inc.
    Inventors: Stanislaw Czaja, Mark E. Davis, Anthony Lee, Sang Gook Kim, Li-Hsiang Sun
  • Publication number: 20120129522
    Abstract: A method for communicating data based on an unlicensed band in a wireless communication system comprising a first type network entity and a second type network entity which is different. The first type network entity comprises a cellular base station and the second type network entity comprises a Femto-cell base station. In the method, a cellular base station identifies at least one Femto-cell base station incurring interference and instructs the identified base station to operate on an unlicensed band. The technical features can be used to improve the performance of the wireless network, and/or to reduce the effect of interference.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 24, 2012
    Inventors: Sang Gook KIM, Ki Dong LEE, Dong Wook ROH, Li-Hsiang SUN
  • Patent number: 8185167
    Abstract: Disclosed is a boss reinforcing apparatus of a portable communication device including a press member, the boss reinforcing apparatus including at least one reinforcing part assembled with a boss that is formed on a case of the portable communication device when the case is insert-injection-molded onto the press member, to reinforce the boss and prevent a screw assembling part formed on the boss from separating from the boss.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: May 22, 2012
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jin-Yong Kim, Sang-Gook Kim, Seong-Ki Jeong
  • Patent number: 8159979
    Abstract: A method of providing uplink and downlink transmissions between a mobile terminal and a base station in a mobile communication system is provided. The method increases the flexibility and efficiency of a mobile communication system utilizing one or more relay entities and provides new frame structures to support legacy and new transmissions in a mobile communication system.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: April 17, 2012
    Assignee: LG Electronics Inc.
    Inventors: Ki-Dong Lee, Li-Hsiang Sun, Shu Wang, Sang Gook Kim
  • Patent number: 8136021
    Abstract: A method for generating block codes from Golay code and a method and apparatus for encoding data are provided. The method can effectively generate codes having various lengths, various dimensions, and superior hamming weight distribution, and encodes data such as control information having various lengths into codes having strong resistance to channel errors, resulting in an increase of error correction performance.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: March 13, 2012
    Assignee: LG Electronics Inc.
    Inventors: Dongwook Roh, Nam Yul Yu, Dae Won Lee, Sang Gook Kim, Yu Jin Noh, Ki Jun Kim, Jung Hyun Cho
  • Patent number: 8086929
    Abstract: A low density parity check (LDPC) coding method, and more particularly, a method of executing LDPC coding using a parity check matrix is disclosed. The present invention comprises providing an information bit stream for channel encoding, and encoding the information bit stream by using a first parity check matrix including at least one row generated by combining at least two rows of a second parity check matrix.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: December 27, 2011
    Assignee: LG Electronics Inc.
    Inventors: Ji Wook Chung, Min Seok Oh, Ki Hyoung Cho, Seung Hyun Kang, Young Cheul Yoon, Sang Gook Kim, Ji Ae Seok, Young Seob Lee, So Yeon Kim
  • Patent number: 8055244
    Abstract: A method of allocating a mobile station unique number and method of configuring a public long code mask (PLCM) using the same are disclosed, which are suitable for a normal operation between the mobile station and the system. The present invention includes the steps of re-allocating a manufacturer code of the mobile station unique number to a mobile station and transmitting to the mobile station re-allocation type (RECYCLED_TYPE) information indicating how many times the re-allocating step is carried out. Accordingly, the present invention enables allocation of additional ESN without collision with PLCM even if ESN is exhausted.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: November 8, 2011
    Assignee: LG Electronics Inc.
    Inventors: Ki Jun Kim, Young Jun Kim, Chan Ho Kyung, Jong Hoe An, Sang Gook Kim, Byung Kwan Yi
  • Patent number: 8050213
    Abstract: A method for relaying a signal in a wireless communication system is provided. The method comprises receiving in at least one of a base station and a relay station information regarding a mobile station group (MSG) of a mobile station, scheduling within a given duration uplink information to be transmitted from a first mobile station and downlink information to be transmitted to at least one mobile station, wherein the first mobile station is in each of the at least one mobile station's MSG, receiving in a relay station the uplink information and the downlink information to be transmitted within the given duration, network coding the uplink information and the downlink information in the relay station, and transmitting from the relay station a network-coded packet, wherein the network-coded packet can be received by the base station and the at least one mobile station.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: November 1, 2011
    Assignee: LG Electronics, Inc.
    Inventors: Li-Hsiang Sun, Sang Gook Kim, Ki Dong Lee
  • Publication number: 20110247937
    Abstract: A water desalination system and method in accordance with the principles of the present invention employs capacitive deionization to remove ions from source water to produce deionzed and waste water. The process employs charged electrodes to attract ions of opposite polarity from the source water.
    Type: Application
    Filed: December 19, 2007
    Publication date: October 13, 2011
    Inventors: Nam P. Suh, Sang-Gook Kim, Taesik Lee, Ishan Barman, Gyunyoung Heo
  • Patent number: 8000257
    Abstract: A method of providing a point-to-multipoint service in a mobile communication system and transmission controlling method thereof are disclosed, by which a better quality of a point-to-multipoint service can be provided in a manner of coping with time-variable channel situation variable adaptively. In a mobile communication system providing a point-to-multipoint service, the present invention includes the steps of receiving data for the point-to-multipoint service from a base station, measuring a reception quality for the received point-to-multipoint service data, and transmitting reception quality information for the point-to-multipoint service data to the base station.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: August 16, 2011
    Assignee: LG Electronics, Inc.
    Inventors: Jong Hoe An, Seok Woo Lee, Young Woo Yun, Ki Jun Kim, Young Jun Kim, Chan Ho Kyung, Young Cheul Yoon, Sang Gook Kim, Li-Hsiang Sun, Shu Wang
  • Patent number: 7995512
    Abstract: A method of transmitting data packets in a mobile communication system using at least one relay station (RS) and using at least two frequency carriers is disclosed. More specifically, the method comprises transmitting at least one subpacket of a first data packet to a mobile station (MS) on a first frequency carrier, and transmitting at least one subpacket of a second data packet to the MS via the at least one RS.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: August 9, 2011
    Assignee: LG Electronics Inc.
    Inventors: Sang Gook Kim, Young C. Yoon, Li-Hsiang Sun, Shu Wang
  • Patent number: 7945214
    Abstract: A method of transmitting data in a multi input, multi output (MIMO) system is disclosed. More specifically, the method includes selecting a primary antenna, based on satisfying at least one specified criteria, for transmitting a preamble, and transmitting the preamble via the primary antenna.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: May 17, 2011
    Assignee: LG Electronics Inc.
    Inventors: Sang Gook Kim, Young Cheul Yoon, Li-Hsiang Sun, Suk Woo Lee, Ho Bin Kim