公开(公告)号：US10440556B2

公开(公告)日：2019-10-08

申请号：US16077446

申请日：2017-02-10

Applicant: LG ELECTRONICS INC.

Inventor： Heejeong Cho ,  Jiwon Kang ,  Heejin Kim ,  Ilmu Byun ,  Genebeck Hahn

IPC: H04W8/08 ,  H04W8/04 ,  H04W8/26 ,  H04W76/14 ,  H04W76/11 ,  H04L29/12 ,  H04W88/04 ,  H04W88/16

Abstract: The present invention relates to a method and an apparatus for performing, by a first mobility management entity (MME), a change of an MME in a wireless communication system. The present invention may provide a method and an apparatus which receive a tracking area update (TAU) request message including MME information related to a second MME to be changed, from a terminal through a base station; transmits, to the second MME, a context request message requesting context information of the terminal; receives, from the second MME, a context response message including the context information; and transmits, to at least one MME, a message informing that an MME managing mobility of the terminal has changed from the second MME to the first MME.

公开(公告)号：US10419961B2

公开(公告)日：2019-09-17

申请号：US15250689

申请日：2016-08-29

Applicant: LG ELECTRONICS INC.

Inventor： Eunjong Lee ,  Heejeong Cho ,  Jaehoon Chung

IPC: H04W24/10 ,  H04W88/06 ,  H04W36/30 ,  H04W74/00

Abstract: A method of supporting communication using two or more heterogeneous radio access technologies (RAT) may include receiving, from a first communication network supporting a first RAT, a first message requesting notification as to whether access to a second communication network that simultaneously support the first communication network and a second RAT is supported; transmitting, to the base station in the first communication network, a second message including an indicator indicating whether to support simultaneous access to the first and second communication networks in response to the first message; and receiving a trigger condition for reporting a measurement result for the second communication network from the base station in the first communication network, when the indicator indicates that the terminal is able to access the first and second communication networks.

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：US10305644B2

公开(公告)日：2019-05-28

申请号：US15337359

申请日：2016-10-28

Applicant: LG ELECTRONICS INC.

Inventor： Genebeck Hahn ,  Heejeong Cho ,  Eunjong Lee ,  Jiwon Kang ,  Ilmu Byun

IPC: H04W28/02 ,  H04L5/00 ,  H04W88/02 ,  H04W88/08 ,  H04L1/00 ,  H04L12/875 ,  H04W72/04

Abstract: The present disclosure provides a method for transmitting and receiving data in a wireless communication system. Particularly, the method performed by a user equipment (UE) includes performing a measurement in a measurement gap; receiving a first indication information that instructs to report a mobility state of the UE from a base station (BS); transmitting a second indication information that represents a mobility state to the BS; receiving control information related to a configuration change of the measurement gap from the BS; and transmitting and receiving data for a specific service with the BS in whole or a specific section of the measurement gap based on the received control information, thereby satisfy the requirement of low latency/high reliability requested in 5G.

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.