Patents by Inventor Hee-Kwang Lee

Hee-Kwang Lee 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: 20170111106
    Abstract: The present invention is for supporting carrier aggregation (CA) using multiple carriers in a wireless communication system and provides a terminal operation method comprising the steps of receiving downlink signals via downlink frequency division duplex (FDD)-time division duplex (TDD) carrier aggregation (CA) using a first carrier operated in an FDD mode and a second carrier operated in a TDD mode and transmitting, via the first carrier, uplink signals corresponding to the downlink signals received via the first and second carriers. The present invention also includes embodiments other than the aforementioned embodiment.
    Type: Application
    Filed: March 19, 2015
    Publication date: April 20, 2017
    Inventors: Hee-Kwang LEE, Il-Won KWON, Jung-Ah CHOI, Jae-Ho JEON
  • Patent number: 9197705
    Abstract: A method of allowing a local Driving Assistance Service (DAS) center within a base station to provide a DAS to a vehicle by using a communication network is provided. The method includes receiving, from a vehicle terminal, local DAS information and surrounding information of the vehicle, generating Analyzed-local (A-local) DAS information by using the received local DAS information, and transmitting, when the DAS is provided by using the generated A-local DAS information, the A-local DAS information to the vehicle terminal.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: November 24, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeong-Ho Lee, Il-Won Kwon, Seung-Bo Ryu, Hee-Kwang Lee
  • Patent number: 9191860
    Abstract: A resource allocation method of a Base Station (BS) in a wireless communication system is provided. The method includes estimating a size of a MAP message, and evaluating a size of an available burst allocation region according to the estimated size of the MAP message and allocating bursts in the evaluated-sized burst allocation region. Accordingly, when a DownLink (DL) subframe is used by being divining into a plurality of regions according to a burst characteristic, a throughput can be improved without waste of resources by estimating a resource amount occupied by a MAP message in the DL subframe.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: November 17, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee-Kwang Lee, Seung-Joo Maeng, Jae-Ho Jeon
  • Publication number: 20150223239
    Abstract: Methods and apparatuses are provided for performing carrier aggregation (CA) using a plurality of almost blank subframe (ABS) patterns in a macro enhanced Node B (eNB) of a wireless communication system connected to a heterogeneous network. An ABS pattern having a different pattern is determined for each component carrier (CC), when two or more carriers are deployed in each of the macro eNB and at least one small cell eNB. A serving cell for each user equipment (UE) is determined for each CC, from among a macro cell and a small cell. CA is performed for data transmission to each UE using the determined ABS pattern, in accordance with each determined serving cell.
    Type: Application
    Filed: February 3, 2015
    Publication date: August 6, 2015
    Inventors: Hee-Kwang LEE, II-Won Kwon, Jung-Ah Choi
  • Publication number: 20140309812
    Abstract: A method of allowing a local Driving Assistance Service (DAS) center within a base station to provide a DAS to a vehicle by using a communication network is provided. The method includes receiving, from a vehicle terminal, local DAS information and surrounding information of the vehicle, generating Analyzed-local (A-local) DAS information by using the received local DAS information, and transmitting, when the DAS is provided by using the generated A-local DAS information, the A-local DAS information to the vehicle terminal.
    Type: Application
    Filed: April 11, 2014
    Publication date: October 16, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jeong-Ho LEE, Il-Won KWON, Seung-Bo RYU, Hee-Kwang LEE
  • Publication number: 20140148181
    Abstract: Performing scheduling operations by a centralized scheduler in a wireless communication system. Receiving Channel State Information (CSI) about a channel between each of a plurality of Transmission Points (TPs) and each of a plurality of User Equipments (UEs) performing communication with each of the plurality of TPs from each of the plurality of TPs, performing a first scheduling operation for allocating wireless resources to each of the plurality of TPs based on the CSI received from each of the plurality of TPs, and transmitting first scheduling information representing a result of the first scheduling operation to each of the plurality of TPs. The first scheduling information contains transmission power information representing transmission power for each of the wireless resources allocated to each of the plurality of TPs, and is used to perform a second scheduling operation to select a UE to communicate with each of the plurality of TPs.
    Type: Application
    Filed: November 25, 2013
    Publication date: May 29, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hee-Kwang LEE, Ho-Joong KWON, June MOON
  • Patent number: 8638733
    Abstract: An apparatus and method for estimating a MAP size in a broadband wireless communication system based on FFR are provided. In the method, one of a plurality of connections is selected according to priority between the connections. An available resource condition and a MAP size for allocation of resources for the selected connection is determined if resources acceptable for a burst are present in a zone including the selected connection. The next connection is selected according to the priority if available resources are present. The determined MAP size is determined as the final estimation value of a MAP size if the available resources are not present.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: January 28, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Kwang Lee, Choong-Chae Woo, Seung-Joo Maeng, Jae-Ho Jeon
  • Patent number: 8254945
    Abstract: A method of allocating bursts in a broadband wireless communication system is provided. The method includes dividing a downlink period into a plurality of regions according to a burst property, calculating a residual symbol axis size and a residual subchannel axis size of a first region conforming to two-dimensional allocation among the plurality of regions, allocating bursts to be allocated to the first region in a descending order, wherein the bursts are respectively allocated in a rectangular shape having a length corresponding to the number of residual symbols along a time axis or in a rectangular shape having a length corresponding to the number of residual subchannels along a frequency axis, and allocating bursts to be allocated to at least one region conforming to one-dimensional allocation among the plurality of regions to the at least one region conforming to one-dimensional allocation according to a scheduling priority.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: August 28, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Kwang Lee, Seung-Joo Maeng, Jae-Ho Jeon
  • Patent number: 8031662
    Abstract: A method for scheduling data in a communication system having a downlink frame structure including power control regions of a boosting region for boosting power of a data burst, a normal region for keeping power of the data burst, and a deboosting region for deboosting power of the data burst.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: October 4, 2011
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Hee-Kwang Lee, Jung-Won Kim, Jae-Ho Jeon
  • Patent number: 7912005
    Abstract: A method and apparatus for configuring a downlink frame in a communication system is provided.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: March 22, 2011
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Hee-Kwang Lee, Jung-Won Kim, Seung-Joo Maeng
  • Patent number: 7903627
    Abstract: A method for generating a burst in a communication system. The method includes estimating a first allocable PDU according to scheduling priority; generating a first burst in which the first PDU is to be included; and determining whether a total size of bursts to be allocated to a downlink subframe including the generated first burst is less than a maximum size of bursts allocable to the downlink subframe.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: March 8, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Kwang Lee, Jung-Won Kim, Jae-Ho Jeon, Seung-Joo Maeng
  • Patent number: 7835281
    Abstract: Disclosed is a method and system for allocating resources in a communication system. The method includes calculating a size of a transmission area for transmitting the generated data when data to be transmitted to mobile stations is generated; and controlling data to be transmitted through the transmission area and then allocating the controlled data to the transmission area according to priorities of data bursts based on sizes of the data bursts.
    Type: Grant
    Filed: May 9, 2007
    Date of Patent: November 16, 2010
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Hee-Kwang Lee, Jung-Won Kim, Chang-Soo Park, Yoo-Seung Song
  • Publication number: 20100202395
    Abstract: An apparatus and method for estimating a MAP size in a broadband wireless communication system based on FFR are provided. In the method, one of a plurality of connections is selected according to priority between the connections. An available resource condition and a MAP size for allocation of resources for the selected connection is determined if resources acceptable for a burst are present in a zone including the selected connection. The next connection is selected according to the priority if available resources are present. The determined MAP size is determined as the final estimation value of a MAP size if the available resources are not present.
    Type: Application
    Filed: February 12, 2010
    Publication date: August 12, 2010
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Hee-Kwang LEE, Choong-Chae WOO, Seung-Joo MAENG, Jae-Ho JEON
  • Patent number: 7633863
    Abstract: A method and apparatus for scheduling data in a communication system. Data is classified into at least one Quality of Service (QoS) class having a series of priorities according to QoS of the data. The classified data is scheduled according to the series of priorities of the at least one QoS class.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: December 15, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Won Kim, Chang-Soo Park, Yoo-Seung Song, Hee-Kwang Lee
  • Publication number: 20090213803
    Abstract: A resource allocation method of a Base Station (BS) in a wireless communication system is provided. The method includes estimating a size of a MAP message, and evaluating a size of an available burst allocation region according to the estimated size of the MAP message and allocating bursts in the evaluated-sized burst allocation region. Accordingly, when a DownLink (DL) subframe is used by being divining into a plurality of regions according to a burst characteristic, a throughput can be improved without waste of resources by estimating a resource amount occupied by a MAP message in the DL subframe.
    Type: Application
    Filed: February 20, 2009
    Publication date: August 27, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hee-Kwang Lee, Seung-Joo Maeng, Jae-Ho Jeon
  • Publication number: 20090213807
    Abstract: A method of allocating bursts in a broadband wireless communication system is provided. The method includes dividing a downlink period into a plurality of regions according to a burst property, calculating a residual symbol axis size and a residual subchannel axis size of a first region conforming to two-dimensional allocation among the plurality of regions, allocating bursts to be allocated to the first region in a descending order, wherein the bursts are respectively allocated in a rectangular shape having a length corresponding to the number of residual symbols along a time axis or in a rectangular shape having a length corresponding to the number of residual subchannels along a frequency axis, and allocating bursts to be allocated to at least one region conforming to one-dimensional allocation among the plurality of regions to the at least one region conforming to one-dimensional allocation according to a scheduling priority.
    Type: Application
    Filed: February 25, 2009
    Publication date: August 27, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hee-Kwang Lee, Seung-Joo Maeng, Jae-Ho Jeon
  • Publication number: 20080219161
    Abstract: A method for generating a burst in a communication system. The method includes estimating a first allocable PDU according to scheduling priority; generating a first burst in which the first PDU is to be included; and determining whether a total size of bursts to be allocated to a downlink subframe including the generated first burst is less than a maximum size of bursts allocable to the downlink subframe.
    Type: Application
    Filed: February 29, 2008
    Publication date: September 11, 2008
    Applicants: Samsung Electronics Co., Ltd.
    Inventors: Hee-Kwang Lee, Jung-Won Kim, Jae-Ho Jeon, Seung-Joo Maeng
  • Publication number: 20080181175
    Abstract: A method and apparatus for configuring a downlink frame in a communication system. The method and apparatus includes setting up a first region including allocation information of a data burst according to an amount of the data burst to be transmitted in a downlink frame region; estimating a first transmission Protocol Data Unit/Packet Data Unit (PDU) according to scheduling priority; and transmitting the first PDU over a remaining region except for the first region in the downlink frame region. The data burst includes at least one PDU having the same Modulation and Coding Scheme (MCS) level, or is a data burst generated by concatenating PDUs of the same Mobile Station (MS).
    Type: Application
    Filed: January 29, 2008
    Publication date: July 31, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee-Kwang LEE, Jung-Won KIM, Seung-Joo MAENG
  • Publication number: 20080075027
    Abstract: A method for scheduling data in a communication system having a downlink frame structure including power control regions of a boosting region for boosting power of a data burst, a normal region for keeping power of the data burst, and a deboosting region for deboosting power of the data burst.
    Type: Application
    Filed: September 27, 2007
    Publication date: March 27, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee-Kwang Lee, Jung-Won Kim, Jae-Ho Jeon
  • Publication number: 20080034107
    Abstract: Disclosed is a method and system for allocating resources in a communication system. The method includes calculating a size of a transmission area for transmitting the generated data when data to be transmitted to mobile stations is generated; and controlling data to be transmitted through the transmission area and then allocating the controlled data to the transmission area according to priorities of data bursts based on sizes of the data bursts.
    Type: Application
    Filed: May 9, 2007
    Publication date: February 7, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hee-Kwang Lee, Jung-Won Kim, Chang-Soo Park, Yoo-Seung Song