公开(公告)号：US20150063198A1

公开(公告)日：2015-03-05

申请号：US14538387

申请日：2014-11-11

Applicant: LG Electronics Inc.

Inventor： Sung Ho MOON ,  Minseok Noh ,  Yeong Hyeon Kwon ,  Jin Sam Kwak ,  Dong Cheol Kim ,  Seung Hee Han ,  Hyun Woo Lee

IPC: H04W72/00 ,  H04W72/04

CPC classification number: H04W72/042 ,  H04L5/0053 ,  H04L5/0058 ,  H04W48/12 ,  H04W72/005 ,  H04W72/0446

Abstract: A method of allocating control information in a wireless communication system is provided. The method includes: allocating essential control information of a first system to a first sub-frame in a frame including a plurality of sub-frames each of which comprises a plurality of orthogonal frequency-division multiplexing (OFDM) symbols; and allocating essential control information of a second system to an nth sub-frame in a fixed position from the first sub-frame (where n is an integer satisfying n>1). Accordingly, in a frame supporting heterogeneous systems, essential control information can be fixedly allocated to a specific position while maintaining the number of system switching points, at which switching occurs between the systems, to one even if a radio resource allocation amount changes between the systems, and thus the essential control information that must be received by all user equipments can be effectively provided without the increase of overhead.

Abstract translation: 提供了一种在无线通信系统中分配控制信息的方法。 该方法包括：在包括多个子帧的帧中的第一子帧中分配第一系统的基本控制信息，每个子帧包括多个正交频分复用（OFDM）符号; 并且将第二系统的基本控制信息从第一子帧（其中n是满足n> 1的整数）分配给固定位置的第n个子帧。 因此，在支持异构系统的帧中，即使在系统之间的无线资源分配量发生变化的情况下，也可以将基本控制信息固定地分配给特定位置，同时将系统之间进行切换的系统切换点的数量保持为一个 因此可以有效地提供所有用户设备必须接收的基本控制信息，而不增加开销。

公开(公告)号：US20140219326A1

公开(公告)日：2014-08-07

申请号：US14343296

申请日：2012-09-28

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo Ko ,  Jaehoon Chung ,  Minseok Noh

IPC: H04W24/10

CPC classification number: H04W24/10 ,  H04B7/0417 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0645 ,  H04L5/001 ,  H04L5/0057

Abstract: The present invention relates to a wireless communication system, and more specifically, to a method and a device for reporting channel state information. According to one embodiment of the present invention, a method for allowing a terminal to report channel state information (CSI) in a wireless communication system comprises the steps of: reporting a rank indicator (RI); dropping a report of a precoding matrix indicator (PMI) after the RI has been reported; and reporting a channel quality indicator (CQI) after the PMI report has been dropped. Here, a rank value corresponding to the RI may be a changed rank value compared to a rank value corresponding to the most recently reported RI before the RI report. Furthermore, the CQI can be determined on the basis of another precoding matrix, rather than a precoding matrix corresponding to the dropped PMI.

Abstract translation: 无线通信系统技术领域本发明涉及一种无线通信系统，更具体地，涉及用于报告信道状态信息的方法和装置。 根据本发明的一个实施例，一种允许终端在无线通信系统中报告信道状态信息（CSI）的方法包括以下步骤：报告秩指示符（RI）; 在RI报告之后丢弃预编码矩阵指标（PMI）的报告; 并在PMI报告丢弃之后报告信道质量指示符（CQI）。 这里，对应于RI的等级值可以是与RI报告之前的最近报告的RI对应的等级值相比较的改变的秩值。 此外，可以基于另一个预编码矩阵来确定CQI，而不是与丢弃的PMI相对应的预编码矩阵。