公开(公告)号：US20150304083A1

公开(公告)日：2015-10-22

申请号：US14649437

申请日：2013-10-10

Applicant: LG ELECTRONICS INC.

Inventor： Kitae KIM ,  Jinmin KIM ,  Hyunsoo KO ,  Jaehoon CHUNG

IPC: H04L5/00 ,  H04W74/00

CPC classification number: H04L5/0048 ,  H04L5/0025 ,  H04L5/0051 ,  H04L27/18 ,  H04L27/2601 ,  H04W74/004

Abstract: A method for transmitting a reference signal to a user equipment at a base station in a wireless communication system is disclosed. The method includes transmitting the reference signal to the user equipment according to a first pattern corresponding to a first rank and, if a rank is changed from the first rank to a second rank, transmitting the reference signal to the user equipment according to a second pattern corresponding to the second rank, wherein, if the second rank is greater than the first rank, the second pattern includes the first pattern. Preferably, the first pattern is a reference signal pattern for a single rank and the second pattern is defined as a hierarchical structure in which one or more reference signal symbols are added to the first pattern in a time domain direction.

Abstract translation: 公开了一种在无线通信系统中的基站向用户设备发送参考信号的方法。 该方法包括根据与第一等级相对应的第一模式将参考信号发送到用户设备，并且如果等级从第一等级改变为第二等级，则根据第二模式将参考信号发送到用户设备 对应于第二等级，其中如果第二等级大于第一等级，则第二图案包括第一图案。 优选地，第一图案是单个等级的参考信号图案，并且第二图案被定义为在时域方向上将一个或多个参考信号符号添加到第一图案的分层结构。

公开(公告)号：US20150043496A1

公开(公告)日：2015-02-12

申请号：US14484035

申请日：2014-09-11

Applicant: LG ELECTRONICS INC.

Inventor： Soyeon KIM ,  Jinmin KIM ,  Jaehoon CHUNG ,  Seunghee HAN

IPC: H04W72/12 ,  H04L5/00

CPC classification number: H04W72/1289 ,  H04L1/0046 ,  H04L5/0005 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0053 ,  H04L69/324 ,  H04W72/1278 ,  H04W72/1294 ,  H04W88/02 ,  H04W88/08

Abstract: A method is described for receiving a downlink control information (DCI) from a base station (BS) by a user equipment (UE) in a wireless communication system. The method includes monitoring a plurality of physical downlink control channel (PDCCH) candidates having the same payload size in a common search space and a UE-specific search space on a primary cell to receive the DCI. The common search space and the UE-specific search space are overlapped. If the UE is configured with a carrier indicator field (CIF), the method further includes determining that only a PDCCH in the common search space is transmitted from among the plurality of PDCCH candidates.

Abstract translation: 描述了一种用于在无线通信系统中由用户设备（UE）从基站（BS）接收下行链路控制信息（DCI）的方法。 该方法包括在公共搜索空间中监视具有相同有效载荷大小的多个物理下行链路控制信道（PDCCH）候选以及主小区上的UE特定搜索空间以接收DCI。 公共搜索空间和UE专用搜索空间重叠。 如果UE配置有载波指示符字段（CIF），则该方法还包括确定在多个PDCCH候选中仅发送公共搜索空间中的PDCCH。