公开(公告)号：US20150256313A1

公开(公告)日：2015-09-10

申请号：US14706615

申请日：2015-05-07

Applicant: LG ELECTRONICS INC.

Inventor： Soyeon KIM ,  Jaehoon Chung ,  Seunghee Han ,  Minseok Noh

IPC: H04L5/00 ,  H04W24/10 ,  H04W72/04 ,  H04W76/04

CPC classification number: H04L5/0057 ,  H04B7/0647 ,  H04L5/001 ,  H04L5/0053 ,  H04W24/10 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/14 ,  H04W76/27

Abstract: The present invention relates to a wireless access system supporting multi-carrier aggregation (CA) and discloses various methods and devices for aperiodic feedback of channel state information (CSI). The method for aperiodic feedback of the channel state information (CSI) in the wireless access system supporting the multi-carrier aggregation (CA), according to an embodiment of the present invention, comprises the steps of: receiving a first message including an aperiodic CSI request field and uplink grant from a base station; receiving a second message including bitmap information indicating a downlink component carrier (DL CC) subjected to CSI measurement from the base station; measuring the CSI in consideration of at least one of the aperiodic CSI request, uplink grant, and bitmap information; and transmitting the measured CSI to the base station through a physical uplink shared channel (PUSCH) to thereby receive aperiodic feedback of the same.

Abstract translation: 本发明涉及支持多载波聚合（CA）的无线接入系统，并且公开了用于信道状态信息（CSI）的非周期反馈的各种方法和装置。 根据本发明的实施例，用于支持多载波聚合（CA）的无线接入系统中的信道状态信息（CSI）的非周期反馈的方法包括以下步骤：接收包括非周期CSI的第一消息 来自基站的请求字段和上行链路授权; 从基站接收包括表示进行CSI测量的下行分量载波（DL CC）的位图信息的第二消息; 考虑到非周期性CSI请求，上行链路许可和位图信息中的至少一个来测量CSI; 以及通过物理上行链路共享信道（PUSCH）将测量的CSI发送到基站，从而接收该CSI的非周期性反馈。

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。