公开(公告)号：US09907094B2

公开(公告)日：2018-02-27

申请号：US15022207

申请日：2014-08-18

Applicant: LG Electronics Inc.

Inventor： Seungjune Yi ,  Sunyoung Lee ,  Youngdae Lee

IPC: H04W74/00 ,  H04W74/08 ,  H04B7/26 ,  H04W72/12

CPC classification number: H04W74/0833 ,  H04B7/2656 ,  H04W72/1268 ,  H04W72/1273

Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to random access procedures in a wireless network employing TDD scheme. According to one aspect of the present invention, the a user equipment (UE), receiving information a first time division duplex (TDD) uplink/downlink (UL/DL) subframe configuration and information on a second TDD UL/DL subframe configuration informing the UE of a change from the first TDD UL/DL subframe configuration, communicates with the network based on the second TDD UL/DL subframe configuration, but performs a random access procedure based on the first TDD UL/DL subframe configuration, when the random access procedure is initiated.

公开(公告)号：US09887809B2

公开(公告)日：2018-02-06

申请号：US14898734

申请日：2014-07-09

Applicant: LG ELECTRONICS INC.

Inventor： Seungjune Yi ,  Sunyoung Lee ,  Sungjun Park

IPC: H04L1/08 ,  H04W76/02 ,  H04W76/06 ,  H04L1/18 ,  H04W24/10 ,  H04W72/04 ,  H04W76/04 ,  H04L1/00

CPC classification number: H04L1/08 ,  H04L1/1809 ,  H04L1/1864 ,  H04L1/1896 ,  H04L2001/0097 ,  H04W24/10 ,  H04W72/04 ,  H04W76/15 ,  H04W76/28 ,  H04W76/34

Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for reporting an RLC (Radio Link Control) re-transmission failure in the wireless communication system, the method comprising: communicating with both the first BS and the second BS, wherein the first BS has a Radio Resource Control (RRC) connection with the UE; and reporting to the first BS, a Radio Link Control (RLC) retransmission error without RRC connection re-establishment for the first BS if the RLC retransmission error occurs in an RLC entity transmitting RLC PDU (Protocol Data Unit) to the second BS.

公开(公告)号：US20170374687A1

公开(公告)日：2017-12-28

申请号：US15535786

申请日：2016-01-18

Applicant: LG Electronics Inc.

Inventor： Sunyoung Lee ,  Seungjune Yi

IPC: H04W74/08

CPC classification number: H04W74/0833 ,  H04L5/001 ,  H04L5/0053 ,  H04W74/0891

Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for initiating a random access procedure in a carrier aggregation system, the method comprising: receiving, from a network, an Radio Resource Control (RRC) signal which configures a new Secondary Cell (SCell) with Physical Uplink Control Channel (PUCCH) resource; checking whether a Time Alignment Timer (TAT) associated with a Timing Advance Group (TAG) to which the new SCell with the PUCCH resource belong is running or not; and initiating a random access procedure on the New SCell in the TAG if the associated TAT is not running.

公开(公告)号：US09854578B2

公开(公告)日：2017-12-26

申请号：US15456935

申请日：2017-03-13

Applicant: LG ELECTRONICS INC.

Inventor： Seungjune Yi ,  Sunyoung Lee

IPC: H04W4/00 ,  H04W72/04 ,  H04W76/04

CPC classification number: H04W72/042 ,  H04L1/1809 ,  H04L1/1841 ,  H04L1/1848 ,  H04L1/1851 ,  H04L1/1887 ,  H04L1/1896 ,  H04W28/065 ,  H04W76/27

Abstract: A method for a User Equipment (UE) operating in a wireless communication system, the method includes stopping a Packet Data Convergence Protocol (PDCP) reordering timer, while the PDCP reordering timer is running, when a value of the PDCP reordering timer is reconfigured by upper layers; restarting the PDCP reordering timer; and setting a value of reordering_PDCP_RX_COUNT of a reordering function corresponding to the restarted PDCP reordering timer to a COUNT value associated to RX_HFN and Next_PDCP_RX_SN.

公开(公告)号：US09838901B2

公开(公告)日：2017-12-05

申请号：US15029515

申请日：2014-09-18

Applicant: LG ELECTRONICS INC.

Inventor： Sunyoung Lee ,  Seungjune Yi ,  Sungjun Park

IPC: H04W24/08 ,  H04W76/00 ,  H04W24/10 ,  H04W56/00 ,  H04W72/04 ,  H04L1/18

CPC classification number: H04W24/10 ,  H04L1/187 ,  H04W56/00 ,  H04W56/0005 ,  H04W72/0413

Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for reporting an radio link problem in the wireless communication system, the method comprising: receiving an indicator indicating which cell is a first cell of the second BS from either the first BS or the second BS; detecting a radio link problem on a cell belonging to the second BS; and reporting the radio link problem of the second BS to the first BS if the cell, on which the radio link problem is detected, is indicated as the first cell by the indicator.

公开(公告)号：US09838158B2

公开(公告)日：2017-12-05

申请号：US14897592

申请日：2014-07-08

Applicant: LG ELECTRONICS INC.

Inventor： Seungjune Yi ,  Sunyoung Lee ,  Sungjun Park

IPC: H04W72/04 ,  H04W76/04 ,  H04W24/10 ,  H04L1/08 ,  H04L1/18 ,  H04W76/02 ,  H04W76/06 ,  H04L1/00

CPC classification number: H04L1/08 ,  H04L1/1809 ,  H04L1/1864 ,  H04L1/1896 ,  H04L2001/0097 ,  H04W24/10 ,  H04W72/04 ,  H04W76/15 ,  H04W76/28 ,  H04W76/34

Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for reporting an RLC (Radio Link Control) re-transmission failure in the wireless communication system, the method comprising: receiving, from a base station (BS), an indicator indicating a radio bearer (RB) which the UE reports a RLC retransmission error to the BS; and reporting, to a BS, an Radio Link Control (RLC) retransmission error if the RLC retransmission error occurs in the RB indicated by the indicator.

公开(公告)号：US09820176B2

公开(公告)日：2017-11-14

申请号：US14902264

申请日：2014-07-21

Applicant: LG ELECTRONICS INC.

Inventor： Sunyoung Lee ,  Seungjune Yi ,  Youngdae Lee ,  Sungjun Park

IPC: H04J1/00 ,  H04W24/10 ,  H04W28/02 ,  H04W24/02 ,  H04W76/04 ,  H04B7/022 ,  H04W72/12

CPC classification number: H04W24/10 ,  H04B7/022 ,  H04W24/02 ,  H04W28/0278 ,  H04W72/1284 ,  H04W76/27

Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for calculating an amount of data available for transmission in the wireless communication system, the method comprising: receiving ratio for calculating amount of Data Available for Transmission (DAT) in a PDCP (Packet Data Convergence Protocol) entity; calculating an amount of DAT when data is arrived in the PDCP entity; and setting a first amount of DAT as the calculated amount of DAT and a second amount of DAT as ‘zero’, if the calculated amount of DAT is less than a threshold, wherein the first amount of DAT is for the first BS and the second amount of DAT is for the second BS.

公开(公告)号：US20170086254A1

公开(公告)日：2017-03-23

申请号：US15312362

申请日：2015-07-06

Applicant: LG Electronics Inc.

Inventor： Sunyoung Lee ,  Seungjune Yi

IPC: H04W76/06 ,  H04W72/14 ,  H04W72/04

CPC classification number: H04W76/34 ,  H04L5/0098 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/14

Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for handling of data transmission and reception for SeNB related bearer release in a dual connectivity system, the method comprising: receiving, from a Master eNB (MeNB), a 1st message for requesting to release a SCG (Secondary Cell Group) bearer or a SCG part of a split bearer configured in the SeNB; releasing downlink part of the SCG bearer or the SCG part of the split bearer configured in the SeNB; receiving, from the MeNB, a 2nd message for indicating that a UE has released the SCG bearer or the SCG part of the split bearer configured in the SeNB; and releasing uplink part of the SCG bearer or the SCG part of the split bearer configured in the SeNB.

公开(公告)号：US09578675B2

公开(公告)日：2017-02-21

申请号：US14412969

申请日：2013-07-08

Applicant: LG ELECTRONICS INC.

Inventor： Sunyoung Lee ,  Youngdae Lee ,  Sungjun Park ,  Seungjune Yi ,  Sunghoon Jung

IPC: H04W52/02 ,  H04W76/04 ,  H04W72/04

CPC classification number: H04W76/048 ,  H04W52/0216 ,  H04W52/0229 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/048 ,  H04W76/28 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/21 ,  Y02D70/23 ,  Y02D70/24

Abstract: A method and apparatus for changing Discontinuous Reception (DRX) cycle in a wireless communication system is provided. A wireless device configures a short DRX cycle and a long DRX cycle. When a drx-ShortCycle timer expires, it is determined whether a drxInactivityTimer is run or not. Therefore, the wireless device uses one of the short DRX cycle and the long DRX cycle according to the determination. Discontinuous reception (DRX) cycle can be configured flexibly and a CSI report between the UE and the eNB can be complied with accurately.

Abstract translation: 提供一种用于在无线通信系统中改变不连续接收（DRX）周期的方法和装置。 无线设备配置短DRX周期和长DRX周期。 当drx-ShortCycle定时器到期时，确定是否运行了drxInactivityTimer。 因此，无线设备根据该确定使用短DRX周期和长DRX周期中的一个。 可以灵活配置不连续接收（DRX）周期，并且可以准确地遵守UE与eNB之间的CSI报告。

公开(公告)号：US20160309517A1

公开(公告)日：2016-10-20

申请号：US15022318

申请日：2014-07-01

Applicant: LG ELECTRONICS INC.

Inventor： Sungjun Park ,  Youngdae Lee ,  Seungjune Yi ,  Sunghoon Jung ,  Sunyoung Lee

IPC: H04W74/08 ,  H04W56/00

CPC classification number: H04W74/0833 ,  H04W56/0005 ,  H04W88/02 ,  H04W88/08

Abstract: There is provided a method for random access procedure. The method may comprise: determining, by a user equipment (UE), a first subframe on which a first random access preamble is to be transmitted to a first node; determining, by the UE, a second subframe, on which a second random access preamble is to be transmitted to a second node, except for the first subframe; and transmitting, by the UE, the first random access preamble on the first subframe and the second random access preamble on the second subframe.

Abstract translation: 提供了一种随机访问过程的方法。 该方法可以包括：由用户设备（UE）确定将第一个随机接入前导码发送到第一个节点的第一个子帧; 由所述UE确定除了所述第一子帧之外的第二子帧，所述第二子帧将在其上发送第二随机接入前导码到第二节点; 以及由所述UE发送所述第一子帧上的所述第一随机接入前同步码和所述第二子帧上的所述第二随机接入前同步码。