公开(公告)号：US20180026694A1

公开(公告)日：2018-01-25

申请号：US15550692

申请日：2015-02-13

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo KO ,  Heejeong CHO ,  Hyeyoung CHOI ,  Ilmu BYUN ,  Kungmin PARK

IPC: H04B7/06

Abstract: Disclosed is method and apparatus for communication using common feedback information in multiple antenna system. According to this method, a receiving side device receives rank Ni signals from a transmitting side device with a first type multiple antenna transmission scheme at a first receiving opportunity, and receives rank Nj signals from the transmitting side device with a second type multiple antenna transmission scheme at a second receiving opportunity, where Ni>Nj. The feedback information of this method is common feedback information comprising a combination of a first feedback information for the rank Ni signals and a second feedback information for the rank Nj signals. For this, the first type multiple antenna transmission scheme uses the second type multiple antenna transmission scheme for transmission of rank Nj signals among the rank Ni signals received at the first receiving opportunity.

公开(公告)号：US20170303330A1

公开(公告)日：2017-10-19

申请号：US15636461

申请日：2017-06-28

Applicant: LG ELECTRONICS INC.

Inventor： Heejeong CHO ,  Eunjong LEE ,  Hyeyoung CHOI ,  Genebeck HAHN

IPC: H04W76/02 ,  H04W24/10

CPC classification number: H04W76/15 ,  H04W24/10 ,  H04W40/12 ,  Y02D70/10 ,  Y02D70/12 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/126 ,  Y02D70/1262 ,  Y02D70/14 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/34

Abstract: A method and apparatus for establishing a session in a wireless communication system is provided. An entity of a primary radio access technology (RAT) system receives measurement results on the primary RAT system and a secondary RAT system from a multi-RAT device, determines a routing rule and a routing type for bearers which are appropriate for simultaneous transmission through the primary RAT system and the secondary RAT system, based on quality of service (QoS) and the measurement results, and transmits a routing control request message to a packet data network (PDN) gateway (P-GW). The routing control request message includes identifiers (IDs) of the bearers which are appropriate for simultaneous transmission, the routing type for each bearer, and the routing rule for each bearer.

公开(公告)号：US20170295523A1

公开(公告)日：2017-10-12

申请号：US15507709

申请日：2014-10-16

Applicant: LG ELECTRONICS INC.

Inventor： Heejeong CHO ,  Hyunsoo KO ,  Hyeyoung CHOI ,  Ilmu BYUN ,  Kungmin PARK

IPC: H04W36/00

CPC classification number: H04W36/0055 ,  H04W36/0005 ,  H04W36/0016 ,  H04W36/0033 ,  H04W36/0077 ,  H04W36/0083 ,  H04W36/14 ,  H04W76/10 ,  H04W84/12 ,  H04W88/06

Abstract: The present invention relates to a handover method between heterogeneous wireless communication techniques and a device for same. A wireless access device is capable of: transmitting to a terminal condition information related to conditions required for the terminal to carry out a predetermined reporting action; establishing wireless connection with the terminal, when a request from the terminal due to the reporting action has been received; providing to a network controller of a core network a message according to the reporting action; receiving from the network controller context information of the terminal for establishing security and data bearers; establishing a data bearer for each data flow to be handed over by using the context information, when a request for data transmission/reception according to the handover has been received from the terminal; and receiving data from the terminal.

公开(公告)号：US20170289839A1

公开(公告)日：2017-10-05

申请号：US15507144

申请日：2014-11-03

Applicant: LG ELECTRONICS INC.

Inventor： Hyeyoung CHOI ,  Heejeong CHO ,  Hyunsoo KO ,  Ilmu BYUN ,  Kungmin PARK

IPC: H04W28/02 ,  H04W88/10 ,  H04W72/04 ,  H04W72/12

CPC classification number: H04W28/0278 ,  H04L5/003 ,  H04L5/0032 ,  H04L5/0035 ,  H04L5/0053 ,  H04W28/08 ,  H04W72/0406 ,  H04W72/06 ,  H04W72/1226 ,  H04W72/1278 ,  H04W72/1284 ,  H04W88/10

Abstract: The present invention relates to a method for reporting a buffer status and an apparatus therefor in a heterogeneous wireless communication system. A terminal receives a configuration message for a multi-RAT integration scheduling from a cellular controller, and, on the basis of the configuration message, can report the buffer status in a format comprising identification information for a logic channel and a multi-RAT scheduling indication field.

公开(公告)号：US20170265243A1

公开(公告)日：2017-09-14

申请号：US15452668

申请日：2017-03-07

Applicant: LG ELECTRONICS INC.

Inventor： Genebeck HAHN ,  Jiwon KANG ,  Heejeong CHO ,  Eunjong LEE ,  Ilmu BYUN

IPC: H04W76/02 ,  H04W76/06 ,  H04W74/08

CPC classification number: H04W74/0833 ,  H04W76/18 ,  H04W76/19 ,  H04W76/38

Abstract: The present disclosure provides a method and apparatus for performing an operation related to a Radio Link Failure (RLF) in a wireless communication system. Particularly, the method performed by a user equipment (UE) includes monitoring a radio link state of a serving base station (BS); detecting a physical layer problem; transmitting a specific random access preamble related to the RLF to one or more neighboring BSs through a specific Physical Random Access Channel (PRACH) resource; receiving a random access response from the one or more neighboring BSs; determining a neighboring BS to which an additional RRC connection is to be configured based on the received random access response; and configuring an RRC connection with the determined neighboring BS, wherein the specific PRACH resource is a common PRACH resource that is separately configured to transmit the specific random access preamble, thereby preventing the Link Outage phenomenon of the UE for a specific service.

公开(公告)号：US20170244506A1

公开(公告)日：2017-08-24

申请号：US15519517

申请日：2014-10-27

Applicant: LG ELECTRONICS INC.

Inventor： Kungmin PARK ,  Heejeong CHO ,  Hyunsoo KO ,  Hyeyoung CHOI ,  Ilmu BYUN

IPC: H04J11/00 ,  H04L5/00

CPC classification number: H04J11/005 ,  H04B7/0667 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0033 ,  H04L5/0051 ,  H04L5/0073 ,  H04L27/2613

Abstract: The present invention relates to generating an interference pattern for controlling inter-cell interference, a method for signaling therefor, and an apparatus utilizing the method. The method for signaling an interference pattern according to the present invention may comprise the steps of: determining the length and cyclic shift offset for a first interference pattern to be allocated to a set reference resource from among interference pattern sets; generating a cell-specific sequence to which the cyclic shift offset of the first interference pattern has been applied; and allocating the first interference pattern and cell-specific sequence to a resource and transmitting same.

公开(公告)号：US20170238243A1

公开(公告)日：2017-08-17

申请号：US15502746

申请日：2014-09-18

Applicant: LG ELECTRONICS INC.

Inventor： Kungmin PARK ,  Heejeong CHO ,  Hyunsoo KO ,  Hyeyoung CHOI ,  Ilmu BYUN

IPC: H04W48/16 ,  H04W72/04

CPC classification number: H04W48/16 ,  H04L5/0055 ,  H04W24/02 ,  H04W72/042 ,  H04W76/20

Abstract: Disclosed are a method and a device for determining a cell identifier. A method for determining a cell identifier can comprise the steps of: a network control unit generating an Nth neighbor cell list which comprises information about a neighboring cell of a search cell; the network control unit receiving, from a search cell, information about a global cell identifier and a first PCI of an unknown cell; the network control unit determining whether or not the unknown cell is a moving cell on the basis of the global cell identifier; and, if the unknown cell is a moving cell and the first PCI and a second PCI of a neighbor cell that is comprised in the Nth neighbor cell list, the network control unit transmitting to the moving cell a PCI change signal that requests changing of the first PCI.

公开(公告)号：US20170180982A1

公开(公告)日：2017-06-22

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: H04W8/24 ,  H04W76/02

CPC classification number: H04W8/245 ,  H04W48/20 ,  H04W76/11 ,  H04W88/04 ,  H04W88/085

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.

公开(公告)号：US20170135115A1

公开(公告)日：2017-05-11

申请号：US14937458

申请日：2015-11-10

Applicant: LG ELECTRONICS INC.

Inventor： Heejeong CHO ,  Genebeck HAHN ,  Eunjong LEE ,  Ilmu BYUN

IPC: H04W72/08 ,  H04W74/08

CPC classification number: H04W74/0833 ,  H04L1/00

Abstract: This document discloses a method and an apparatus for transmitting and receiving data in a wireless communication system supporting a specific service. A mobile terminal according to the present invention transmits a preamble and data for the specific service to a base station; and receives feedback information carrying a reception result of the preamble and the data from the base station. Based on the feedback information, the mobile terminal may not re-transmit the preamble and the data to the base station or re-transmit at least one of the preamble or the data to the base station, wherein the preamble and the data are transmitted through a first contention based channel, the first contention based channel is not a dedicated channel for a specific UE.

公开(公告)号：US20170099127A1

公开(公告)日：2017-04-06

申请号：US15286175

申请日：2016-10-05

Applicant: LG ELECTRONICS INC.

Inventor： Ilmu BYUN ,  Heejeong CHO ,  Genebeck HAHN ,  Eunjong LEE

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0051 ,  H04L1/0047 ,  H04L5/0053 ,  H04L25/02 ,  H04L25/0202

Abstract: Provided are a method and device for performing channel estimation in a wireless communication system. Specifically, user equipment receives a control channel in the first symbol of a plurality of symbols received for a short TTI (sTTI) set to be shorter than a TTI. The user equipment receives a data channel scheduled by the control channel in the remaining symbols other than the first symbol of the plurality of symbols received in the sTTI. The user equipment receives a user equipment (UE)-specific reference signal having the same frequency resource as a first cell-specific reference signal received in the TTI in the first symbol. The first cell-specific reference signal is received subsequent to the UE-specific reference signal, and the UE-specific reference signal is received in the sTTI. The user equipment decodes the control channel or the data channel using the UE-specific reference signal.