公开(公告)号：US20130242915A1

公开(公告)日：2013-09-19

申请号：US13874199

申请日：2013-04-30

Applicant: LG ELECTRONICS INC.

Inventor： Young Dae LEE ,  Sung Duck CHUN ,  Myung Cheul JUNG ,  Sung Jun PARK

IPC: H04W72/04

CPC classification number: H04W74/0833 ,  H04L1/1671 ,  H04L1/1812 ,  H04L1/1825 ,  H04L1/1861 ,  H04L1/1887 ,  H04L5/0055 ,  H04L47/10 ,  H04L47/18 ,  H04L47/34 ,  H04W28/26 ,  H04W56/0045 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/12 ,  H04W74/004 ,  H04W74/006 ,  H04W74/0866 ,  Y02D70/124

Abstract: A method for transmitting radio resources in a mobile communication system is disclosed. The method includes receiving a random access channel (RACH) preamble from a plurality of UEs and transmitting response information associated with the received preambles over a common channel wherein the plurality UEs can access the common channel and receive corresponding information. If a HARQ scheme is used when a UE transmits data to the eNode-B using uplink radio resources allocated over the RACH, the eNode-B does not pre-allocate uplink radio resources required for re-transmission and performs allocation of radio resources for a first transmission of HARQ. If the re-transmission is required, the eNode-B allocates the radio resources required for the re-transmission with the NACK signal. If re-transmission is not required, the present invention can reduce an amount of wasted radio resources.

公开(公告)号：US20130215855A1

公开(公告)日：2013-08-22

申请号：US13860407

申请日：2013-04-10

Applicant: LG ELECTRONICS INC.

Inventor： Sung Jun PARK ,  Seung June YI ,  Young Dae LEE ,  Sung Duck CHUN

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04L1/1812 ,  H04W56/004

Abstract: A method for transmitting and receiving signals in consideration of a time alignment timer and user equipment (UE) for the same are provided. In this method, a UE performs initial transmission or retransmission of an uplink signal using wireless resources corresponding to an uplink grant signal received from a base station only when a time alignment timer of the UE is running. The UE does not transmit a HARQ feedback signal for a downlink signal received from the base station to the base station when the time alignment timer of the UE is not running.

Abstract translation: 提供考虑到时间对准定时器和用户设备（UE）的发送和接收信号的方法。 在该方法中，UE仅在UE的时间对准定时器正在运行时，使用与从基站接收到的上行准许信号对应的无线资源，进行上行链路信号的初始发送或重发。 当UE的时间对准定时器未运行时，UE不向基站发送用于从基站接收的下行链路信号的HARQ反馈信号。

公开(公告)号：US20130201949A1

公开(公告)日：2013-08-08

申请号：US13829467

申请日：2013-03-14

Applicant: LG Electronics Inc.

Inventor： Sung Jun PARK ,  Seung June YI ,  Young Dae LEE ,  Sung Duck CHUN

IPC: H04W74/08

CPC classification number: H04W74/0833 ,  H04W72/0446 ,  H04W74/004 ,  H04W92/20

Abstract: A method and device for performing contention resolution between a mobile communication terminal and a base station. The method according to an embodiment includes initiating a random access procedure by a medium access control (MAC) layer of the mobile communication terminal, including starting a contention resolution timer; and stopping the contention resolution timer and determining that the random access procedure was successfully completed upon receipt from the base station of a physical downlink control channel (PDCCH) transmission addressed to a cell-radio network temporary identity (C-RNTI) of the mobile communication terminal and containing a UL grant.

公开(公告)号：US20130142152A1

公开(公告)日：2013-06-06

申请号：US13753237

申请日：2013-01-29

Applicant: LG ELECTRONICS INC.

Inventor： Sung Jun PARK ,  Seung June YI ,  Young Dae LEE ,  Sung Duck CHUN

IPC: H04W74/00

CPC classification number: H04W72/0413 ,  H04L1/1812 ,  H04L1/1822 ,  H04L1/1887 ,  H04W72/042 ,  H04W72/1289 ,  H04W74/006 ,  H04W74/0833

Abstract: A method for a user equipment (UE) to receive a downlink signal, the method including receiving a first downlink control channel identified by a temporary cell identifier (Temporary C-RNTI) from a base station, the first downlink control channel including a first downlink assignment signal having a new data indicator (NDI) with a first value; receiving a second downlink control channel identified by a cell identifier (C-RNTI) from the base station, the second downlink control channel including a second downlink assignment signal having the NDI with a second value; and determining if the NDI has been toggled compared to the NDI previously received from the base station. Further, the UE ignores the NDI with the first value received through the first downlink control channel identified by the temporary cell identifier (Temporary C-RNTI). The method also includes receiving the downlink signal based on the determining.

Abstract translation: 一种用户设备（UE）接收下行链路信号的方法，所述方法包括从基站接收由临时小区标识符（临时C-RNTI）标识的第一下行链路控制信道，所述第一下行链路控制信道包括第一下行链路 分配信号具有具有第一值的新数据指示符（NDI）; 从所述基站接收由小区标识符（C-RNTI）标识的第二下行链路控制信道，所述第二下行链路控制信道包括具有第二值的所述NDI的第二下行链路分配信号; 以及与先前从基站接收到的NDI相比，确定NDI是否已被切换。 此外，UE以通过由临时小区标识符（Temporary C-RNTI）标识的第一下行链路控制信道接收的第一值来忽略NDI。 该方法还包括基于该确定来接收下行链路信号。

公开(公告)号：US20130070681A1

公开(公告)日：2013-03-21

申请号：US13677232

申请日：2012-11-14

Applicant: LG Electronics Inc.

Inventor： Young Dae LEE ,  Sung Duck CHUN ,  Myung Cheul JUNG ,  Sung Jun PARK

IPC: H04W4/00

CPC classification number: H04L1/1621 ,  H04L1/1825 ,  H04L1/1887 ,  H04L1/1893 ,  H04L47/10 ,  H04L47/18 ,  H04L47/34 ,  H04L69/22 ,  H04W28/04 ,  H04W28/065 ,  Y02D70/124

Abstract: According to one embodiment, a method for retransmitting a protocol data unit (PDU) in a mobile communication system includes: segmenting a first PDU to form one or more second PDUs if the first PDU does not fit within a PDU size indicated by a lower layer; and transmitting the one or more second PDUs to a receiving side. Segmenting the first PDU includes: mapping only a data field of the first PDU to a data field of the one or more second PDUs; and setting a header of each of the one or more second PDUs. The header of each of the one or more second PDUs includes a field indicating a sequence number of the first PDU.