公开(公告)号：US10412677B2

公开(公告)日：2019-09-10

申请号：US15564015

申请日：2016-04-11

Applicant: LG ELECTRONICS INC.

Inventor： Hyeyoung Choi ,  Kiseon Ryu ,  Jeongki Kim ,  Suhwook Kim

IPC: H04W52/02 ,  H04W48/02 ,  H04W74/08 ,  H04W74/00 ,  H04W84/12 ,  H04W4/70 ,  H04L5/00

Abstract: According to one embodiment of the present invention, a method by which an access point (AP) transmits and receives a frame in a wireless communication system comprises the steps of: receiving, from STA, an uplink signal including predetermined information; determining whether to transmit, to the STA, information related to the stopping an EDCA, on the basis of the predetermined information and/or the uplink signal; and transmitting, to the STA, the information related to the stopping of an EDCA when the information related to the stopping of an EDCA is determined to be transmitted to the STA.

公开(公告)号：US10389466B2

公开(公告)日：2019-08-20

申请号：US15511221

申请日：2014-09-22

Applicant: LG ELECTRONICS INC.

Inventor： Kungmin Park ,  Heejeong Cho ,  Hyunsoo Ko ,  Hyeyoung Choi ,  Ilmu Byun

IPC: H04J11/00 ,  H04L5/00 ,  H04B7/024 ,  H04B7/06 ,  H04L27/26 ,  H04B7/0456 ,  H04W88/08

Abstract: The present invention provides a method for mitigating inter-cell interference. To this end, the present invention includes a second signal transmission step in which, when a transmission symbol to be transmitted to a first receiver is S and a transmission symbol to be transmitted to a second receiver is Z, a symbol S2k (k is an integer) is transmitted to the first receiver through a first transmission antenna according to a first pattern, a symbol S2k* is transmitted to the first receiver through a second transmission antenna, a symbol S2k+1 is transmitted to the first receiver through a third transmission antenna, a symbol S2k+1* is transmitted to the first receiver through a fourth transmission antenna, and symbols Z4k to Z4k+3 and symbols Z4k* to Z4k+3* are transmitted to the second receiver through fifth to eighth transmission antennas according to a second pattern different from the first pattern.

公开(公告)号：US10356705B2

公开(公告)日：2019-07-16

申请号：US14916326

申请日：2014-08-25

Applicant: LG Electronics Inc.

Inventor： Heejeong Cho ,  Hyunsoo Ko ,  Eunjong Lee ,  Sunam Kim ,  Hyeyoung Choi

IPC: H04W48/18 ,  H04W8/08 ,  H04W68/02 ,  H04W88/06 ,  H04W60/00

Abstract: The present invention relates to a method for updating a TAC in a multi-RAT environment and a method for transmitting/receiving paging information. A terminal, which is capable of establishing a radio connection through a first radio interface by a first radio protocol and a radio connection through a second radio interface by a second radio protocol, may determine the best radio interface on the basis of predetermined conditions, perform a TA update through the best radio connection interface, and transmit/receive paging information through the best radio connection interface.

公开(公告)号：US10334636B2

公开(公告)日：2019-06-25

申请号：US15520044

申请日：2015-10-16

Applicant: LG ELECTRONICS INC.

Inventor： Heejeong Cho ,  Hyunsoo Ko ,  Hyeyoung Choi ,  Ilmu Byun ,  Kungmin Park

IPC: H04W52/02 ,  H04W76/10 ,  H04W76/20 ,  H04W76/28 ,  H04W84/12

Abstract: Provided are a method and a device for generating a virtual bearer in a wireless communication system. A mobility management entity (MME) acquires context information for a packet data network (PDN) connection generated through a Wi-Fi network, and generates a virtual bearer in a cellular network on the basis of the acquired context information. The virtual bearer may be generated by various methods according to whether a PDN connection mapped to the PDN connection generated through the Wi-Fi network exists in the cellular network and whether a default bearer exists in the cellular network.

公开(公告)号：US10194470B2

公开(公告)日：2019-01-29

申请号：US15520044

申请日：2015-10-16

Applicant: LG ELECTRONICS INC.

Inventor： Heejeong Cho ,  Hyunsoo Ko ,  Hyeyoung Choi ,  Ilmu Byun ,  Kungmin Park

IPC: H04W52/02 ,  H04W76/10 ,  H04W76/20 ,  H04W76/28 ,  H04W84/12

Abstract: Provided are a method and a device for generating a virtual bearer in a wireless communication system. A mobility management entity (MME) acquires context information for a packet data network (PDN) connection generated through a Wi-Fi network, and generates a virtual bearer in a cellular network on the basis of the acquired context information. The virtual bearer may be generated by various methods according to whether a PDN connection mapped to the PDN connection generated through the Wi-Fi network exists in the cellular network and whether a default bearer exists in the cellular network.

公开(公告)号：US10187862B2

公开(公告)日：2019-01-22

申请号：US14895147

申请日：2014-05-08

Applicant: LG ELECTRONICS INC.

Inventor： Ilmu Byun ,  Jaehoon Chung ,  Hyeyoung Choi ,  Heejeong Cho ,  Genebeck Hahn

IPC: H04W56/00 ,  H04L5/00 ,  H04W72/08 ,  H04W76/14

Abstract: The present invention provides an apparatus and a method for performing timing synchronization in a wireless communication system. Particularly, the present invention is characterized in that resources for D2D communication and resources for performing cellular communication are identified, and resource information for the D2D communication is determined considering the number of D2D terminals and a cell size of a base station, has different frequency and time domains according to D2D terminals, and includes different time offset values. Accordingly, the present invention prevents, in advance, the generation of interference according to the D2D communication.

公开(公告)号：US10154507B2

公开(公告)日：2018-12-11

申请号：US15127944

申请日：2014-07-15

Applicant: LG ELECTRONICS INC.

Inventor： Ilmu Byun ,  Hyunsoo Ko ,  Kungmin Park ,  Heejeong Cho ,  Hyeyoung Choi

IPC: H04W4/00 ,  H04W72/10 ,  H04W16/32 ,  H04W72/04 ,  H04L5/00

Abstract: A method of allocating resources according to the present invention comprises the steps of: allocating a signal having a first beam width from a first base station controlling a first cell to a predetermined resource; and allocating a signal, having a second beam width different from the first beam width, from a second base station controlling a second cell adjacent to the first cell to the resource. The signal having the first beam width may be a signal having a first priority, and the signal having the second beam width may be a signal having a second priority that is different from the first priority. Accordingly, a method for allocating resources is proposed which can stably receive signals even when a terminal that moves in a dense small cell structure is at a cell edge or a border region between cells.

公开(公告)号：US10045384B2

公开(公告)日：2018-08-07

申请号：US14912867

申请日：2014-07-01

Applicant: LG Electronics Inc.

Inventor： Eunjong Lee ,  Jaehoon Chung ,  Hyeyoung Choi ,  Heejeong Cho ,  Genebeck Hahn

IPC: H04W76/02 ,  H04W36/18 ,  H04W24/10 ,  H04W36/02 ,  H04W36/30 ,  H04W76/12 ,  H04W92/20 ,  H04W36/14 ,  H04W76/15

Abstract: A method for managing link failure, according to one embodiment of the present invention, comprises the steps of: receiving a link failure report (LFR) for notifying that a link between user equipment and an base station of a second RAT has been disassociated; requesting an entity of a first RAT, which manages interworking between the first RAT and the second RAT, to switch a flow of downlink data for the user equipment, which is to be transmitted to the base station of the second RAT, to a base station of the first RAT; establishing a direct tunnel between the base station of the first RAT and the base station of the second RAT by using an identifier of the base station of the second RAT, which is included in the LFR of the user equipment; and relaying the downlink data for the user equipment, which has been buffered in the base station of the second RAT up to before the switch of the flow after the disassociation of the link, from the base station of the second RAT to the user equipment.

公开(公告)号：US10039039B2

公开(公告)日：2018-07-31

申请号：US14896729

申请日：2014-06-25

Applicant: LG Electronics Inc.

Inventor： Heejeong Cho ,  Eunjong Lee ,  Hyeyoung Choi ,  Genebeck Hahn

IPC: H04W4/00 ,  H04W36/14 ,  H04W36/00 ,  H04W36/36 ,  H04W36/30 ,  H04W88/06

CPC classification number: H04W36/14 ,  H04W36/0066 ,  H04W36/30 ,  H04W36/36 ,  H04W88/06

Abstract: A method for and apparatus for performing handover in a wireless communication system is provided. A wireless device transmits measurement results configured for a secondary radio access technologies (RAT) system, receives information on routing modification based on the measurement results, from a network entity of a primary RAT system and performs a handover to a target access network according to the information on routing modification. The secondary RAT system is used for a user plane (U-plane) data, and the handover is determined based on at least one of a quality of service (QoS) information, load information about the primary RAT system and secondary RAT system, and a network preference information of the UE.

公开(公告)号：US10028132B2

公开(公告)日：2018-07-17

申请号：US15101838

申请日：2014-05-30

Applicant: LG ELECTRONICS INC.

Inventor： Hyeyoung Choi ,  Jaehoon Chung ,  Eunjong Lee ,  Heejeong Cho ,  Genebeck Hahn

IPC: H04W76/11 ,  H04W8/24 ,  H04W76/02

Abstract: Provided is a method for receiving system information by a terminal in a cloud wireless communication system including one or more baseband units (BBUs) and remote radio units (RRUs), the one or more RRUs being connected to a particular BBU among the BBUs to provide a direct service to the terminal via one or more cells. The method is characterized in that the terminal receives, from the network, an identifier that can understand whether there are any changes in the BBU, the RRU, and the cell, and through the received identifier understands whether there are one or more changes among the BBU, the RRU, and the cell, and selectively receives, from the network, the only system information required for any one among the BBU change, the RRU change, and the cell change.