公开(公告)号：US20160156401A1

公开(公告)日：2016-06-02

申请号：US14954838

申请日：2015-11-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Eko Onggosanusi ,  Boon Loong Ng ,  Young-Han Nam ,  Hee Don Gha

IPC: H04B7/06 ,  H04B7/04

CPC classification number: H04B7/0645 ,  H04B7/0478 ,  H04B7/0482 ,  H04W72/046

Abstract: User equipment (UE) is configured to receive two types of channel state information (CSI) reference signals (CSI-RS), the first containing more antenna ports and measured less often than the second. A first CSI report is based on first type CSI-RS and a second CSI report on the second type CSI-RS. The second type CSI-RS is at least partially precoded in response to the first CSI report, is precoded for the specific UE, and is transmitted more often than the first type CSI-RS, while the first type CSI-RS is not precoded. The first CSI report contains a first precoding matrix indicator (PMI) parameter and the second CSI report contains only a second PMI parameter of a two-PMI codebook, where the first PMI parameter is a long-term and wideband PMI. The first PMI is derived from measuring the first type CSI-RS in a plurality of subframes and resource blocks.

Abstract translation: 用户设备（UE）被配置为接收两种类型的信道状态信息（CSI）参考信号（CSI-RS），第一种包含更多的天线端口，并且比第二种频率更少地测量。 第一个CSI报告基于第一类型CSI-RS和关于第二类型CSI-RS的第二CSI报告。 第二类型CSI-RS响应于第一CSI报告被至少部分预编码，对于特定UE进行预编码，并且比第一类型CSI-RS更频繁地发送，而第一类型CSI-RS未被预编码。 第一CSI报告包含第一预编码矩阵指示符（PMI）参数，第二CSI报告仅包含二PMI码本的第二PMI参数，其中第一PMI参数是长期和宽带PMI。 第一PMI来自于测量多个子帧和资源块中的第一类型CSI-RS。

公开(公告)号：US11856594B2

公开(公告)日：2023-12-26

申请号：US16762843

申请日：2018-11-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tae Hyoung Kim ,  Young Bum Kim ,  Hee Don Gha ,  Tae Han Bae ,  Seung Hoon Choi

IPC: H04W72/53 ,  H04W72/0453 ,  H04L5/00 ,  H04W72/1263 ,  H04L1/1607 ,  H04W72/23

CPC classification number: H04W72/53 ,  H04L1/1614 ,  H04L5/0051 ,  H04W72/0453 ,  H04W72/1263 ,  H04W72/23

Abstract: The disclosure provides a method of transmitting downlink (DL) control information, the method including: transmitting configuration information about a CORESET in which DL control information is to be transmitted; mapping the DL control information to a plurality of resource elements (REs) in the CORESET determined based on the configuration information; and transmitting the DL control information via the plurality of REs.

公开(公告)号：US10020860B2

公开(公告)日：2018-07-10

申请号：US14954838

申请日：2015-11-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Eko Onggosanusi ,  Boon Loong Ng ,  Young-Han Nam ,  Hee Don Gha

IPC: H04B7/00 ,  H04B7/06 ,  H04B7/0456

CPC classification number: H04B7/0645 ,  H04B7/0478 ,  H04B7/0482 ,  H04W72/046

Abstract: User equipment (UE) is configured to receive two types of channel state information (CSI) reference signals (CSI-RS), the first containing more antenna ports and measured less often than the second. A first CSI report is based on first type CSI-RS and a second CSI report on the second type CSI-RS. The second type CSI-RS is at least partially precoded in response to the first CSI report, is precoded for the specific UE, and is transmitted more often than the first type CSI-RS, while the first type CSI-RS is not precoded. The first CSI report contains a first precoding matrix indicator (PMI) parameter and the second CSI report contains only a second PMI parameter of a two-PMI codebook, where the first PMI parameter is a long-term and wideband PMI. The first PMI is derived from measuring the first type CSI-RS in a plurality of subframes and resource blocks.