Patents by Inventor Hyun-Jeong Kang

Hyun-Jeong Kang 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: 8817680
    Abstract: An apparatus and method for controlling sleep cycle synchronization of a sleep mode in a wireless communication system are provided. A method of operating a Mobile Station (MS) in a sleep mode state includes, if a traffic indication message and unicast data are not received during a listening window, transmitting one of a request message and a header to a Base Station (BS) to request a location of a next-scheduled listening window, and if a response for the one of the request message and the header is received, performing synchronization for a next sleep cycle.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: August 26, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeong-Moon Son, Taori Rakesh, Jae-Jeong Shim, Jung-Je Son, Hyun-Jeong Kang
  • Publication number: 20140221024
    Abstract: An apparatus and method for operating a paging control in a broadband wireless communication system are provided. The method includes receiving paging information used to determine a location of a paging listening interval in an idle mode, determining whether multiple pagings are applied, using a maximum paging number field contained in the paging information, determining locations of a plurality of paging listening intervals in a paging cycle using a paging spacing value and an initial paging offset contained in the paging information, and determining whether the terminal is paged in each of the paging listening intervals.
    Type: Application
    Filed: April 7, 2014
    Publication date: August 7, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Mingxia XU, Hee-Won KANG, Hyun-Jeong KANG, Byung-Wook JUN
  • Patent number: 8798100
    Abstract: An apparatus and a method for transmitting feedback information of an asymmetric frequency band in a wireless communication system supporting multiple bands are provided. The feedback information transmission method includes, when at least two frequency bands used by a mobile station includes at least one asymmetric frequency band, confirming feedback channel information for the asymmetric frequency band based on system channel information of the asymmetric frequency band, and transmitting feedback information for the asymmetric frequency band over the confirmed feedback channel. The feedback channel information includes feedback channel information for the asymmetric frequency band allocated to a symmetric frequency band.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: August 5, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Jeong Kang, Chi-Woo Lim, Jae-Weon Cho, Tae-Young Kim
  • Publication number: 20140211706
    Abstract: A method of performing a Network Coding (NC) by a transmitting node in a wireless communication system, the method comprising receiving uplink packets from a plurality of nodes through respective links, grouping the links into at least one group based on channel quality information, each group satisfying a listed range of channel quality information, performing the NC on downlink data for each group and transmitting each scheduling information shared by each group to the at least one respective group. A method of receiving network-coded data in a wireless communication system comprises transmitting an uplink packet to a transmitting node, receiving scheduling information shared by a group of links from the transmitting node, the group of links satisfying a listed range of channel quality information, receiving downlink data on which NC is performed and decoding the downlink data based on the scheduling information.
    Type: Application
    Filed: January 31, 2014
    Publication date: July 31, 2014
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Suk-Won Kim, Jung-Soo Jung, Hyun-Jeong Kang, Jung-Shin Park
  • Publication number: 20140213249
    Abstract: A method of determining member Base Stations (BSs) providing cooperative communication to a Mobile Station (MS) in a communication system. The method includes when a candidate list of the member BSs generated using at least one of strengths of signals received from adjacent BSs and cell loading state information of the adjacent BSs is received from the MS, selecting candidate BSs having a service quality larger than or equal to a threshold from candidate BSs included in the candidate list as targets to receive a member negotiation; and performing a capability negotiation with each of the selected targets to receive the member negotiation to select final member BSs and transmitting information on the determined final member BSs to the MS.
    Type: Application
    Filed: January 24, 2014
    Publication date: July 31, 2014
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Hyun-Jeong Kang, Rakesh Taori, Yeong-Moon Son
  • Patent number: 8792887
    Abstract: A method and apparatus for network reentry of a Mobile Station (MS) in a wireless communication system are provided. The method includes receiving allocation of a context search identifier from a network while a network entry procedure is performed, and transmitting a ranging request message including the allocated context search identifier to a Base Station (BS) when a network reentry event occurs.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: July 29, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Kyo Baek, Ji-Cheol Lee, Yeong-Moon Son, Hyun-Jeong Kang
  • Publication number: 20140185434
    Abstract: An operating method of a Base Station (BS) in a wireless communication system supporting a wireless link based communication between BSs is provided. The method includes, if a wireless link with a counterpart BS is interrupted, transmitting a report on the wireless link interruption to a management server, receiving information about at least one candidate BS for a detour path from the management server, determining a detour path with the counterpart BS on the basis of the information about the at least one candidate BS, and performing communication with the counterpart BS through the detour path.
    Type: Application
    Filed: December 23, 2013
    Publication date: July 3, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sang-Jin KIM, Hyun-Jeong KANG
  • Patent number: 8761714
    Abstract: A system and method for providing an emergency service in a communication system is provided. A method for providing an emergency service by an idle mode Mobile Station (MS) in a communication system includes receiving, from a Base Station (BS), a broadcast message including information on a time duration in which an emergency service message will be transmitted after waking up at a start timing point of a paging listening interval, transitioning into an idle state when a start timing point of the time duration in which the emergency service message will be transmitted is later than a timing point at which the paging listening interval is terminated, and waking up at the start timing point of the time duration in which the emergency service message will be transmitted after transitioning into the idle state.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: June 24, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeong-Moon Son, Jung-Hoon Cheon, Chan-Ho Min, Hyun-Jeong Kang, Geun-Hwi Lim
  • Patent number: 8743827
    Abstract: A switching method and apparatus in a broadband wireless communication system is provided. A method of an Advanced Base Station (ABS) for a Multicast Broadcast Service (MBS) in the broadband wireless communication system includes transmitting to an Advanced Mobile Station (AMS) a message including identification information for a primary carrier that provides the MBS among multiple carriers supported by the ABS, switching to the primary carrier with respect to the AMS, and transmitting MBS data through the primary carrier.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: June 3, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung-Kyu Kim, Jae-Jeong Shim, Hyun-Jeong Kang
  • Publication number: 20140126721
    Abstract: A method and apparatus is capable of encrypting short data in a wireless communication system When a terminal generates a short data burst in idle mode, the apparatus generates a Traffic Encryption Key (TEK) using a Cipher-based Message Authentication Code (CMAC)-TEK prekey derived from an Authorization Key (AK) related to Security Association (SA) between the terminal and a Base Station (BS). A nonce is constructed with a Packet Number (PN) identical to an uplink CMAC PN (CMAC-PN_U) transmitted together with a Ranging Request (RNG-REQ) message carrying the short data burst The short data burst is encrypted using the TEK and the nonce. A Medium Access Control (MAC) Protocol Data Unit (PDU) is generated by attaching a MAC header and a CMAC digest for integrity protection to the RNG-REQ message carrying the encrypted short data burst. The MAC PDU is transmitted to the BS.
    Type: Application
    Filed: January 7, 2014
    Publication date: May 8, 2014
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Young-Kyo Baek, Hyun-Jeong Kang
  • Publication number: 20140120874
    Abstract: A subscriber station performs a method for managing a security key. The method includes generating, for each of the base stations, an input value for generation of the security key for data transmission and reception with the each base station; transmitting, to the each base station, the input value for a corresponding base station; and generating the security key of the corresponding base station by using the input value of the each base station. A base station provides cooperative communication to the subscriber station.
    Type: Application
    Filed: October 25, 2013
    Publication date: May 1, 2014
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Hyun-Jeong Kang, Jung-Shin Park, Dae-Gyun Kim, Jung-Soo Jung
  • Patent number: 8712449
    Abstract: An apparatus and method for operating a paging control in a broadband wireless communication system are provided. The method includes receiving paging information used to determine a location of a paging listening interval in an idle mode, determining whether multiple pagings are applied, using a maximum paging number field contained in the paging information, determining locations of a plurality of paging listening intervals in a paging cycle using a paging spacing value and an initial paging offset contained in the paging information, and determining whether the terminal is paged in each of the paging listening intervals.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: April 29, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mingxia Xu, Hee-Won Kang, Hyun-Jeong Kang, Byung-Wook Jun
  • Publication number: 20140112228
    Abstract: A method for reducing power consumption of a macro Base Station (BS) in a radio communication system is provided. The method includes transmitting a preamble through at least one mini BS installed within a service coverage area of the macro BS, and transmitting a power-off command to the at least one mini BS after being switched into a power-on state, upon reception of access request information through the at least one mini BS from a terminal that received the preamble.
    Type: Application
    Filed: October 23, 2013
    Publication date: April 24, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Jeong KANG, Rakesh TAORI, Young-Bin CHANG
  • Publication number: 20140105050
    Abstract: A method and apparatus for improving a mobile problem caused by a narrow handover region in a boundary region between virtual cells constructed by a plurality of small base stations are provided. A plurality of Virtual Cells (VCs) include a plurality of Distributed Base Stations (DBSs) whose VCs cooperatively communicate with each other. An Intermediate Distributed Base Station (I-DBS) is located in a region where adjacent at least two VCs among the plurality of VCs are superimposed, and belongs to a different VC according to a time division scheme.
    Type: Application
    Filed: October 15, 2013
    Publication date: April 17, 2014
    Applicants: Korea Advanced Institute of Science and Technology, Samsung Electronics Co., Ltd.
    Inventors: Hyun-Jeong KANG, Tae-Soo KWON, Ju Yong LEE, Han Young YIM, Tae-Young KIM
  • Publication number: 20140087750
    Abstract: A method for setting up a radio front haul link by a serving Base Station (BS) in a cooperative communication system is provided. The method includes receiving a measurement result report message including a measurement result for each of a serving BS and neighbor BSs, determining at least one neighbor BS with which the serving BS will set up a radio front haul link according to the measurement result for each of the serving BS and the neighbor BSs, and performing a radio front haul link set up operation with the at least one neighbor BS.
    Type: Application
    Filed: September 24, 2013
    Publication date: March 27, 2014
    Applicant: Samsung Electronics Co. Ltd.
    Inventors: Rakesh TAORI, Hyun-Jeong KANG
  • Patent number: 8681743
    Abstract: Apparatus and method for selectively using a frame structure adequate for a system environment in a multihop relay wireless communication system are provided. The method includes generating a control signal including the frame information; and transmitting the control signal to a child Relay Station (RS). Accordingly, the frame structure adequate for the system environment can be used, and the transmission delay and the tradeoff between the overheads in each frame structure can be freely selected.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: March 25, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Yoon Oh, Hyun-Jeong Kang, Young-Bin Chang, Jae-Weon Cho, Hyoung-Kyu Lim, Yeong-Moon Son, Sung-Jin Lee
  • Publication number: 20140073329
    Abstract: A method for handover in a wireless communication system includes: when a received signal strength difference between a serving beam from a serving base station used for communication by a terminal and a target beam of a neighboring base station is equal to or greater than a first threshold value, and a received signal strength difference between an active beam and the target beam is equal to or greater than a second threshold value, determining a handover to the target beam; and transmitting a message to initiate the handover.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 13, 2014
    Applicants: Korea Advanced Institute of Science and Technology, Samsung Electronics Co., Ltd.
    Inventors: Hyun-Jeong Kang, Sung-Jin Park, Byung-Chang Chung, Min-Hoe Kim, Jung-Min Moon, Dong-Ho Cho
  • Publication number: 20140064127
    Abstract: A ranging method and apparatus in a wireless communication system are provided. The ranging method of a Mobile Station (MS) includes selecting at least one Base Station (BS) for performing ranging, transmitting a ranging signal by using a common ranging region shared by a plurality of BSs, and receiving a response signal, including a ranging result of at least one BS which received the ranging signal, from a central controller.
    Type: Application
    Filed: September 3, 2013
    Publication date: March 6, 2014
    Applicants: Korea Advanced Institute of Science and Technology, Samsung Electronics Co., Ltd.
    Inventors: Hyun-Jeong KANG, Jung-Min MOON, Dong-Ho CHO
  • Patent number: 8654674
    Abstract: A method provides data communication while a Base Station (BS) is disrupted in a wireless communication system. The method includes, when a plurality of Mobile Stations (MSs) receive a preamble signal from a cluster header through a dedicated control channel while the BS is disrupted, sending a message requesting cluster member subscription to the cluster header, in the cluster header, including the plurality of MSs in a cluster member, configuring a cluster member list, and broadcasting the cluster member list, in a source MS among the plurality of MSs, sending a data transmission request message to the cluster header using the broadcasted cluster member list, in the cluster header, one of unicasting and broadcasting a response message for the data transmission request of the source MS, and, in the source MS, transmitting data to a target MS among the plurality of MSs based on the response message.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: February 18, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung-Kyu Kim, Jung-Je Son, Chang-Yoon Oh, Young-Kyo Baek, Hyun-Jeong Kang
  • Patent number: 8649315
    Abstract: An apparatus and a method for processing a change of a preamble of a Relay Station (RS) are provided. An operating method of a Base Station (BS) includes providing a relay service via an RS, determining whether a preamble of the RS needs to change, when it is necessary to change the preamble of the RS, sending a preamble change command message to the RS and, when the preamble of the RS is changed, sending a preamble change notification message informing of the preamble change to at least one lower node of the RS.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: February 11, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Jeong Kang, Young-Bin Chang, Jung-Je Son, Taori Rakesh