公开(公告)号：USRE49548E1

公开(公告)日：2023-06-06

申请号：US14927312

申请日：2015-10-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Boon Loong Ng ,  Krishna Sayana ,  Jianzhong Zhang ,  Young-Han Nam

IPC: H04L5/00 ,  H04B7/0452 ,  H04W72/04 ,  H04W72/12 ,  H04W72/23 ,  H04W72/1268

CPC classification number: H04L5/0092 ,  H04B7/0452 ,  H04W72/23 ,  H04L5/0007 ,  H04W72/12 ,  H04W72/1268

Abstract: Methods and apparatuses schedule resources and identify resource scheduling in a MU MIMO wireless communication system. A method for identifying resource scheduling for a UE includes receiving downlink control information; identifying, from the downlink control information, one or more DM-RS ports assigned to the UE and a PDSCH EPRE to DM-RS EPRE ratio; and identifying data intended for the UE in a resource block in a downlink subframe using the one or more DM-RS ports and the PDSCH EPRE to DM-RS EPRE ratio. A method for scheduling resources includes identifying one or more DM-RS ports to assign to a UE and a PDSCH EPRE to DM-RS EPRE ratio for identifying data intended for the UE in a resource block in a downlink subframe; and including an indication of the one or more DM-RS ports and the PDSCH EPRE to DM-RS EPRE ratio in downlink control information.

公开(公告)号：US10750434B2

公开(公告)日：2020-08-18

申请号：US16656480

申请日：2019-10-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Boon Loong Ng ,  Krishna Sayana ,  Young-Han Nam ,  Jianzhong Zhang

IPC: H04W48/12 ,  H04W64/00 ,  H04L25/02 ,  H04L5/00 ,  H04L27/26 ,  H04W16/14 ,  H04W48/16 ,  H04W56/00

Abstract: Methods and apparatuses indicate and identify quasi co-located reference signal ports. A method of identifying by a UE includes identifying, from downlink control information, a CSI-RS port that is quasi co-located with a DM-RS port assigned to the UE. The method includes identifying large scale properties for the assigned DM-RS port based on large scale properties for the CSI-RS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the DM-RS port. Another method for identifying by a UE includes identifying, from downlink control information, a CRS port that is quasi co-located with a CSI-RS port configured for the UE. The method includes identifying large scale properties for the configured CSI-RS port based on large scale properties for the CRS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the CSI-RS port.

公开(公告)号：US20200053633A1

公开(公告)日：2020-02-13

申请号：US16656480

申请日：2019-10-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Boon Loong Ng ,  Krishna Sayana ,  Young-Han Nam ,  Jianzhong Zhang

IPC: H04W48/12 ,  H04W64/00 ,  H04L25/02 ,  H04L5/00 ,  H04L27/26 ,  H04W16/14 ,  H04W48/16

Abstract: Methods and apparatuses indicate and identify quasi co-located reference signal ports. A method of identifying by a UE includes identifying, from downlink control information, a CSI-RS port that is quasi co-located with a DM-RS port assigned to the UE. The method includes identifying large scale properties for the assigned DM-RS port based on large scale properties for the CSI-RS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the DM-RS port. Another method for identifying by a UE includes identifying, from downlink control information, a CRS port that is quasi co-located with a CSI-RS port configured for the UE. The method includes identifying large scale properties for the configured CSI-RS port based on large scale properties for the CRS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the CSI-RS port.

公开(公告)号：US10085202B2

公开(公告)日：2018-09-25

申请号：US13866804

申请日：2013-04-19

Applicant: Samsung Electronics Co., LTD

Inventor： Boon Loong Ng ,  Krishna Sayana ,  Young-Han Nam ,  Jianzhong Zhang

IPC: H04W4/00 ,  H04W48/12 ,  H04W16/14 ,  H04W48/16 ,  H04L25/02 ,  H04L27/26 ,  H04W64/00 ,  H04L5/00 ,  H04W56/00

Abstract: Methods and apparatuses indicate and identify quasi co-located reference signal ports. A method of identifying by a UE includes identifying, from downlink control information, a CSI-RS port that is quasi co-located with a DM-RS port assigned to the UE. The method includes identifying large scale properties for the assigned DM-RS port based on large scale properties for the CSI-RS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the DM-RS port. Another method for identifying by a UE includes identifying, from downlink control information, a CRS port that is quasi co-located with a CSI-RS port configured for the UE. The method includes identifying large scale properties for the configured CSI-RS port based on large scale properties for the CRS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the CSI-RS port.

公开(公告)号：US09912430B2

公开(公告)日：2018-03-06

申请号：US13935711

申请日：2013-07-05

Applicant: Samsung Electronics Co., LTD

Inventor： Krishna Sayana ,  Younsun Kim ,  Hyojin Lee ,  Young-Han Nam ,  Jin-Kyu Han

IPC: H04J3/16 ,  H04B7/06 ,  H04L5/00 ,  H04L5/14 ,  H04B7/0456 ,  H04L1/00

CPC classification number: H04J3/1694 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0626 ,  H04L1/0026 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0057 ,  H04L5/1469

Abstract: A method for transmitting a CSI feedback report to a serving cell comprises for time division duplex, configuring at least one periodic CSI process with a CSI reference source defined by a single downlink subframe n−nCQI_ref, wherein nCQI_ref is a smallest value greater than or equal to a positive integer nCQI_ref_min, such that it corresponds to a valid downlink subframe, wherein nCQI_ref_min varies based on a number of at least one periodic CSI process. A method for CSI feedback reporting to a base station comprises configuring not to accommodate, by a user equipment, the one or more aperiodic CSI requests arrived from a serving cell except a CSI request of CSI processes with lower indexes for each serving cell, wherein a number of the one or more CSI processes with a lower index (es) is determined based on a number of pending CSI reports.

公开(公告)号：US09167580B2

公开(公告)日：2015-10-20

申请号：US13842093

申请日：2013-03-15

Applicant: Samsung Electronics Co., LTD

Inventor： Young-Han Nam ,  Boon Loong Ng ,  Krishna Sayana

IPC: H04W72/04 ,  H04L5/14 ,  H04L27/26 ,  H04L5/00

CPC classification number: H04W72/0446 ,  H04L5/0023 ,  H04L5/0051 ,  H04L5/1469 ,  H04L27/2613

Abstract: For use in a wireless network, a method for scheduling a Downlink Pilot Time Slot (DwPTS) subframe is provided. The method comprises expanding Physical Resource Blocks (PRBs) in a subframe prior to a DwPTS subframe to include resource elements (REs) of the DwPTS subframe, a number of OFDM symbols of the DwPTS subframe being less than or equal to a threshold OFDM symbol number. The method further comprises facilitating for a UE to demodulate REs in a DwPTS subframe based on DeModulation Reference Signals (DMRS) transmitted in a downlink subframe prior to the DwPTS subframe.

Abstract translation: 为了在无线网络中使用，提供了用于调度下行链路导频时隙（DwPTS）子帧的方法。 该方法包括在DwPTS子帧之前的子帧中扩展物理资源块（PRB）以包括DwPTS子帧的资源元素（RE），DwPTS子帧的OFDM符号的数目小于或等于阈值OFDM符号数 。 该方法还包括促进UE在DwPTS子帧之前基于在下行链路子帧中发送的去调制参考信号（DMRS）的DwPTS子帧中的RE进行解调。

公开(公告)号：US20140119266A1

公开(公告)日：2014-05-01

申请号：US13942186

申请日：2013-07-15

Applicant: Samsung Electronics, Co., Ltd.

Inventor： Boon Loong Ng ,  Younsun Kim ,  Young-Han Nam ,  Hyojin Lee ,  Krishna Sayana

IPC: H04W72/00

CPC classification number: H04W72/005 ,  H04B7/024 ,  H04L1/0026 ,  H04L1/0061 ,  H04L1/0067 ,  H04L5/0053 ,  H04L27/2602

Abstract: Methods and apparatuses determine and indicate QCL behavior for or to a UE. A method for determining QCL behavior for the UE method includes, when configured in TM10 for a serving cell, determining whether a CRC for a PDSCH transmission scheduled by DCI format 1A is scrambled using a C-RNTI. The method also includes, in response to determining C-RNTI scrambling, determining whether a transmission scheme of the PDSCH transmission uses a non-MBSFN subframe configuration and whether the PDSCH transmission is transmitted on antenna port 0 or a TxD scheme is used. The method further includes, in response to determining the non-MBSFN subframe configuration and antenna port 0 or the TxD scheme being used, determining to use QCL behavior 1 for PDSCH reception. Additionally, the method includes, in response to determining a MBSFN subframe configuration and antenna port 7 being used, determining to use QCL behavior 2 for PDSCH reception.

Abstract translation: 方法和装置确定并指示UE的QCL行为。 用于确定UE方法的QCL行为的方法包括：当在服务小区的TM10中配置时，确定用DCI格式1A调度的PDSCH传输的CRC是否使用C-RNTI进行加扰。 该方法还响应于确定C-RNTI加扰，确定PDSCH传输的传输方案是否使用非MBSFN子帧配置，以及是否使用在天线端口0或TxD方案上发送PDSCH传输。 该方法还包括响应于确定非MBSFN子帧配置和天线端口0或正在使用的TxD方案，确定使用QCL行为1用于PDSCH接收。 此外，该方法包括响应于确定正在使用的MBSFN子帧配置和天线端口7，确定使用QCL行为2用于PDSCH接收。

公开(公告)号：US20140086174A1

公开(公告)日：2014-03-27

申请号：US14036924

申请日：2013-09-25

Applicant: Samsung Electronics Co., LTD

Inventor： Young-Han Nam ,  Boon Loong Ng ,  Hyojin Lee ,  Krishna Sayana ,  Himke van der Velde ,  Jianzhong Zhang

IPC: H04W72/04

CPC classification number: H04W72/0413 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/0031 ,  H04L5/001 ,  H04L5/0035 ,  H04L5/0057 ,  H04W24/10 ,  H04W72/0446 ,  H04W72/12

Abstract: A method for CSI report transmission includes detecting a collision in a subframe, between a first PUCCH CSI report of one serving cell with which a UE is configured in one of transmission modes 1 to 9, and a second PUCCH CSI report of another serving cell with which the UE is configured in transmission mode 10. Upon the reporting types of the collided PUCCH CSI reports having a same priority, the method transmits the first PUCCH CSI report if the CSI process index of the second PUCCH CSI report has a positive value other than 1. A method for CSI report transmission includes configuring, via a higher layer, a UE configured in transmission mode 10 whether to create a respective CSI report(s) for each aperiodic CSI process or not, using an information element including at least three one-bit variables.

Abstract translation: 一种用于CSI报告传输的方法包括检测子帧中的发送模式1至9之一中配置的一个服务小区的第一PUCCH CSI报告与另一个服务小区的第二PUCCH CSI报告之间的冲突， UE在发送模式10中被配置。在相同优先级的冲突PUCCH CSI报告的报告类型的情况下，如果第二PUCCH CSI报告的CSI处理索引具有除了 1.一种用于CSI报告传输的方法，包括：通过更高层配置在传输模式10中配置的UE是否使用包括至少三个的信息元素来创建每个非周期性CSI进程的相应CSI报告 位变量。

公开(公告)号：US20130343299A1

公开(公告)日：2013-12-26

申请号：US13923015

申请日：2013-06-20

Applicant: Samsung Electronics Co., LTD

Inventor： Krishna Sayana ,  Young-Han Nam

IPC: H04B7/04

CPC classification number: H04B7/0417 ,  H04B7/024 ,  H04B7/0632

Abstract: Methods and apparatus of a base station (BS) communicating with a user equipment (UE) are provided. The BS transmits N channel state information reference signal (CSI-RS) on N CSI-RS antenna ports, which is received by the UE. A transmission mode is configured that supports coordinated multi-point (COMP) transmissions. A channel quality information (CQI) feedback configuration requires CQI feedback without a precoding matrix index (PMI) and without a rank indicator (RI). The BS receives a CQI transmitted by the UE, which is in accordance with the CQI feedback configuration. If N is one, the CQI is calculated on a single antenna port, antenna port 7, and the single antenna port is mapped from the N equals one CSI-RS antenna port.

Abstract translation: 提供了与用户设备（UE）通信的基站（BS）的方法和装置。 BS在由UE接收的N个CSI-RS天线端口上发送N信道状态信息参考信号（CSI-RS）。 配置支持协调多点（COMP）传输的传输模式。 信道质量信息（CQI）反馈配置需要CQI反馈，而不需要预编码矩阵索引（PMI）并且没有秩指示符（RI）。 BS接收由UE发送的与CQI反馈配置一致的CQI。 如果N是1，则在单个天线端口，天线端口7上计算CQI，并且从N等于一个CSI-RS天线端口映射单个天线端口。

公开(公告)号：US20130265899A1

公开(公告)日：2013-10-10

申请号：US13856306

申请日：2013-04-03

Applicant: SAMSUNG ELECTRONICS CO., LTD

Inventor： Krishna Sayana ,  Boon Loong Ng ,  Jianzhong Zhang

IPC: H04W24/00

CPC classification number: H04W24/00 ,  H04B7/02 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04W72/046

Abstract: A user equipment (UE) is configured to determine channel quality information (CQI) in a wireless communication system. The UE includes a processor configured to receive from an eNodeB (eNB) signaling parameters related to a first co-channel precoding matrix indicator (PMI) codebook, determine a second co-channel PMI based on a determined single user PMI (SU-PMI) and the received signaling parameters related to the first co-channel PMI codebook, determine a multi-user CQI (MU-CQI) based on the second co-channel PMI, and transmit the MU-CQI to the eNB.

Abstract translation: 用户设备（UE）被配置为在无线通信系统中确定信道质量信息（CQI）。 UE包括被配置为从eNodeB（eNB）接收信令与第一同信道预编码矩阵指示符（PMI）码本相关的参数的处理器，基于确定的单用户PMI（SU-PMI）确定第二同信道PMI， 并且接收到的与第一同频道PMI码本相关的信令参数基于第二同频道PMI确定多用户CQI（MU-CQI），并将该MU-CQI发送给eNB。