Search Patents
  • Method and device for transmitting/receiving downlink reference signal in wireless communication system
    Patent number: 8971381
    Abstract: The present invention relates to a wireless communication system, and discloses a method and a device for transmitting/receiving a downlink reference signal in a wireless communication system. The present invention provides a way for maintaining orthogonality of a reference signal between cells in a multi-cell operation.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: March 3, 2015
    Assignee: LG Electronics Inc.
    Inventors: Hanbyul Seo, Kijun Kim, Inkwon Seo
  • METHOD OF CONTROLLING CHANNEL ACCESS
    Publication number: 20110305216
    Abstract: An embodiment of the present invention provides a method of controlling channel access in a WLAN system, comprising receiving, from an access point, a first channel access control message sent to stations located in some area through a directional antenna of the access point, and attempting to access a channel according to the first channel access control message. The method enables coexistence of several users and improves scalability of a wireless system.
    Type: Application
    Filed: July 21, 2009
    Publication date: December 15, 2011
    Applicant: LG Electronics Inc.
    Inventor: Yong Ho Seok
  • Methods and procedures for high speed UE access
    Patent number: 8862172
    Abstract: A terminal random access procedure is improved by allowing a mobile terminal to correctly map signature indexes onto cyclic shifted Zadoff-Chu (ZC) sequences when the deployed cells support a high-speed mobility by informing a mobile terminal whether a cell supports high-speed mobility.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: October 14, 2014
    Assignee: LG Electronics Inc.
    Inventors: Dragan Vujcic, Yeong Hyeon Kwon
  • Method and apparatus for transmitting uplink control information
    Patent number: 9473267
    Abstract: A method for transmitting uplink control information and a wireless device are provided. The wireless device masks the cyclic redundancy check (CRC) of a first piece of uplink control information with a masking sequence related to a second piece uplink control information and transmits the masked first piece of uplink control information to an uplink channel.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: October 18, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Daesung Hwang, Dongyoun Seo, Bonghoe Kim, Joonkui Ahn
  • Uplink synchronization in multiple carrier system
    Patent number: 8885579
    Abstract: A method and apparatus of uplink synchronization in a multiple carrier system is provided. After establishing Uplink synchronization for a primary carrier, a secondary carrier based on activation information via the primary carrier is activated. A periodic ranging via the secondary carrier is performed to adjust uplink synchronization for the secondary carrier.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: November 11, 2014
    Assignee: LG Electronics Inc.
    Inventors: Ki Seon Ryu, Eun Jong Lee, Young Soo Yuk, Yong Ho Kim
  • METHOD AND APPARATUS FOR TRANSMITTING REFERENCE SIGNAL FOR REDUCING INTER-CELL INTERFERENCE IN MULTIPLE INPUT MULTIPLE OUTPUT COMMUNICATION SYSTEM
    Publication number: 20120120903
    Abstract: Disclosed is a method for transmitting a reference signal, in a method for transmitting a Channel State Information-Reference Reference Signal (CSI-RS) for measuring a transmission channel according to each antenna and a data signal in a broadband wireless communication system based on a MIMO scheme through a plurality of antennas.
    Type: Application
    Filed: July 27, 2010
    Publication date: May 17, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Eunsun Kim, Kijun Kim, Hakseong Kim, Hanbyul Seo, Byounghoon Kim
  • METHOD AND APPARATUS FOR PERFORMING NETWORK ENTRY/REENTRY IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20130208694
    Abstract: Disclosed is a method in which a machine-to-machine (M2M) device and a base station in a wireless communication system perform network reentry comprises the steps of: receiving, from a base station, information related to an uplink resource for the transmission of a ranging request message; and transmitting the ranging request message to the base station on the basis of the received information related to the uplink resource.
    Type: Application
    Filed: October 21, 2011
    Publication date: August 15, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Kyujin Park, Hangyu Cho, Jinsoo Choi
  • Method and device for uplink resource allocation
    Patent number: 8737344
    Abstract: The present invention relates to a wireless communication system. In more detail, the present invention relates to a method for transmitting an uplink in a wireless communication system and to a device therefore, wherein the method for transmitting an uplink in a wireless communication system comprises the steps of: receiving a control channel signal including resource allocation information; and transmitting an uplink signal according to control channel signal.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: May 27, 2014
    Assignee: LG Electronics Inc.
    Inventors: Suckchel Yang, Mingyu Kim, Joonkui Ahn, Dongyoun Seo
  • METHOD AND DEVICE FOR REPORTING CHANNEL STATE INFORMATION
    Publication number: 20150146634
    Abstract: A method and device for reporting channel state information (CSI) is provided. A wireless device codes uplink control information (UCI) including CSI to create encoded UCI and transmits the encoded UCI. When the CSI includes a rank indicator (RI), the payload size of the CSI is determined according to the RI, and if the CSI does not include the RI, the payload size of the CSI is fixed.
    Type: Application
    Filed: May 16, 2013
    Publication date: May 28, 2015
    Applicant: LG ELECTRONICS INC.
    Inventors: Daesung Hwang, Dongyoun Seo, Joonkui Ahn
  • Method for transmitting MAC PDUs
    Patent number: 9413507
    Abstract: With respect to generating and sending a MAC PDU by using the radio resources allocated to the mobile terminal, the level of priority between the buffer status report (BSR) and the established logical channels are defined such that the data of each logical channel and buffer status report can be more effectively, efficiently and quickly transmitted.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: August 9, 2016
    Assignee: LG Electronics Inc.
    Inventors: Seung-June Yi, Sung-Jun Park, Young-Dae Lee, Sung-Duck Chun
  • METHOD AND APPARATUS FOR TRANSMITTING A CONTROL CHANNEL AND A DATA CHANNEL IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20130230013
    Abstract: The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transmitting a control channel in a wireless communication system that supports multi-cell cooperative communication. According to the present invention, a scheme for protecting a control channel and a data channel of one cell from interference caused by another cell is provided.
    Type: Application
    Filed: November 25, 2011
    Publication date: September 5, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Inkwon Seo, Hanbyul Seo, Byounghoon Kim, Kijun Kim
  • METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION
    Publication number: 20130100866
    Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus for transmitting uplink control information in the event of a plurality of cell, wherein the method comprises the following steps; receiving a PPCCH and/or a PDSCH; generating reception acknowledgement information for said PDCCH and/or PDSCH: and transmitting the reception acknowledgement information in an SR subframe via a PUCCH.
    Type: Application
    Filed: September 19, 2011
    Publication date: April 25, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Suckchel Yang, Mingyu Kim, Joonkui Ahn, Dongyoun Seo
  • Cell searching method performed by terminal in wireless communication system, and terminal using same
    Patent number: 9826470
    Abstract: Provided is a cell searching method performed by a terminal in a wireless communication system, and a terminal using same. In the method, determined is whether or not a downlink frequency exists, the downlink frequency being associated with a frequency having preconfigured resources for a D2D operation, and, if the downlink frequency exists, a search is performed for a cell in the downlink frequency.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: November 21, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Sunghoon Jung, Youngdae Lee
  • OPERATING METHOD IN MULTIPLE CELLS, AND WIRELESS DEVICE USING SAME
    Publication number: 20140126529
    Abstract: Provided is an operating method in multiple cells, and a wireless device using same. The wireless device monitors a control channel in each subframe of a normal cell. The wireless device receives information regarding the transmission power of a physical signal of an expanded cell having an unmonitored control channel, and receives the physical signal in the expanded cell.
    Type: Application
    Filed: August 9, 2012
    Publication date: May 8, 2014
    Applicant: LG ELECTRONICS INC.
    Inventors: Joon Kui Ahn, Suck Chel Yang, Min Gyu Kim, Dong Youn Seo
  • Encoding method and encoding apparatus in a wireless communications system
    Patent number: 9385838
    Abstract: Provided are an encoding method and an encoding apparatus in a wireless communications system. The encoding apparatus generates an error detection code for a first UCI (uplink control information), and adds the error detection code to a second UCI. The encoding apparatus encodes the first UCI, and then the second UCI added with the error detection code.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: July 5, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Daesung Hwang, Joonkui Ahn, Dongyoun Seo
  • Method of transmitting uplink data in wireless communication system
    Patent number: 8374143
    Abstract: A method of transmitting uplink data in a wireless communication system is provided. The method includes receiving an uplink grant and transmitting uplink data through a resource block which is indicated by the resource block index in a control region of a slot indicated by the slot indicator in the subframe.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: February 12, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hak Seong Kim, Bong Hoe Kim, Joon Kui Ahn, Ki Jun Kim, Dae Won Lee
  • METHOD AND APPARATUS FOR ASCYNCHRONOUS DIRECT LINK SETUP IN WLAN SYSTEM
    Publication number: 20150036640
    Abstract: A method for a wireless local area network, the method including selecting, by an access point (AP), a direct link setup (DLS) channel among a plurality of channels, the DLS channel being used for a communication of a DLS link between a first station and a second station; and transmitting, by the AP, a control frame to the first station and the second station, the control frame including a channel field indicating the DLS channel.
    Type: Application
    Filed: October 20, 2014
    Publication date: February 5, 2015
    Applicant: LG ELECTRONICS INC.
    Inventor: Yong Ho SEOK
  • METHOD AND APPARATUS FOR TRANSMITTING APERIODIC SOUNDING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20130265977
    Abstract: Provided are a method and an apparatus for transmitting an aperiodic sounding reference signal (SRS) in a wireless communication system. A terminal receives from a base station a triggering signal for triggering the transmission of the aperiodic SRS and the number of transmissions of the aperiodic SRS, and transmits the aperiodic SRS to the base station the number of times equal to the number of transmissions, using a plurality of subframes, on the basis of the triggering signal.
    Type: Application
    Filed: December 16, 2011
    Publication date: October 10, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Min Seok Noh, Jae Hoon Chung
  • Method for transmitting or receiving channel state information between terminal and base station in wireless communication system and device for supporting same
    Patent number: 10868634
    Abstract: Disclosed are a method for transmitting or receiving channel state information between a terminal and a base station, and a device for supporting the same. More particularly, disclosed are a method for more elaborately measuring channel state information and a method for transmitting or receiving channel state information based on the same.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: December 15, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Kijun Kim, Bonghoe Kim, Byounghoon Kim
  • Method for creating a channel between femto base stations based on user equipment
    Patent number: 8995930
    Abstract: A method for generating a direct or indirect wireless channel between femto base stations. To relieve interference that occurs in user equipment depending on the proximity of the femto base station, a user equipment may derive to generate an inter-femto channel between the femto base stations.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: March 31, 2015
    Assignee: LG Electronics Inc.
    Inventor: Jaewon Lim