公开(公告)号：US09564955B2

公开(公告)日：2017-02-07

申请号：US14844820

申请日：2015-09-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Heun-Chul Lee ,  Jong-Han Lim

IPC: H03D1/06 ,  H04B7/04 ,  H04W76/04 ,  H04L5/00 ,  H04B7/06 ,  H04W88/08

CPC classification number: H04B7/0456 ,  H04B7/0413 ,  H04B7/063 ,  H04B7/0639 ,  H04L5/00 ,  H04W76/27 ,  H04W88/08

Abstract: Methods and apparatuses are provided for canceling interference at a User Equipment (UE) in a wireless communication system. A signal that includes a desired signal and an interference signal is received from at least one Base Station (BS). A random parameter is generated by projecting a vector of the received signal onto a set of projection vectors. A decision metric is determined using the random parameter. A Traffic to Pilot Ratio (TPR) that minimizes the decision metric with respect to both a transmission mode candidate group of the interference signal and a TPR candidate group of the interference signal is determined. The interference signal is canceled from the received signal using the TPR.

Abstract translation: 提供了用于消除无线通信系统中的用户设备（UE）的干扰的方法和装置。 从至少一个基站（BS）接收包括所需信号和干扰信号的信号。 通过将接收信号的矢量投影到一组投影矢量上来生成随机参数。 使用随机参数确定决策度量。 确定最小化干扰信号的发送模式候选组和干扰信号的TPR候选组的判定度量的导频比（TPR）的业务量。 使用TPR从接收到的信号中消除干扰信号。

公开(公告)号：US10057907B2

公开(公告)日：2018-08-21

申请号：US14721579

申请日：2015-05-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Heun-Chul Lee ,  Dong-Sik Kim ,  Hyo-Jin Lee ,  Jong-Han Lim

IPC: H04L1/00 ,  H04W72/08 ,  H04W24/08 ,  H04W72/04 ,  H04L5/00 ,  H04B7/06 ,  H04L1/06 ,  H04L25/02

CPC classification number: H04W72/082 ,  H04B7/0619 ,  H04B7/0623 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0667 ,  H04B7/0669 ,  H04B7/0671 ,  H04B7/068 ,  H04B7/0684 ,  H04B7/0689 ,  H04L1/0026 ,  H04L1/06 ,  H04L5/0048 ,  H04L23/00 ,  H04L25/02 ,  H04W24/08 ,  H04W72/042

Abstract: Methods, systems, apparatuses, evolved NodeB (EnBs), User Equipment (UE), and chip sets for all of the same, in cellular communication systems are described. One method for a UE includes receiving a Channel State Information Reference Signal (CSI-RS) transmitted by an eNB according to a pattern in a time-frequency resource grid determined based on the transmission scheme of the eNB, measuring the state of the transmission channel using the CSI-RS, generating channel state information based on the measuring, and transmitting the channel state information as feedback. The UE receives a downlink signal including data and a Cell-specific Reference Signal (CRS) from the eNB and estimates the transmission channel using the CRS and then acquires the data using the estimated channel.

公开(公告)号：US09078151B2

公开(公告)日：2015-07-07

申请号：US14263285

申请日：2014-04-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Heun-Chul Lee ,  Tae-Yoon Kim ,  Won-Woo Park ,  Jong-Han Lim

IPC: H04B3/46 ,  H04B17/00 ,  H04W24/02 ,  H04L27/26 ,  H04Q1/20

CPC classification number: H04W24/02 ,  H04B17/336 ,  H04J11/005 ,  H04L27/2647

Abstract: A method and an apparatus for link performance abstraction for a receiver employing Interference-Aware Communications (IAC) technology in a wireless communication system are provided. A method for operating a receiving apparatus for the link performance abstraction in the wireless communication system, includes receiving an Orthogonal Frequency Division Multiplexing (OFDM) over a plurality of spatial layers, splitting and post-processing the received signal based on the spatial layers, deriving a post-processing Signal-to-Interference-plus-Noise Ratio (SINR) of each spatial layer, converting the post-processing SINR of the spatial layers to a Mutual Information per coded Bit (MIB) adaptively tuned based on an instantaneous Interference-to-Signal Ratio (ISR), and estimating a Block Error Rate (BLER) from a mean of the MIB metrics of the spatial layers.

Abstract translation: 提供了一种用于在无线通信系统中采用干扰感知通信（IAC）技术的接收机的链路性能抽象的方法和装置。 一种用于在无线通信系统中操作用于链路性能抽象的接收设备的方法，包括：在多个空间层上接收正交频分复用（OFDM），基于空间层对接收到的信号进行分割和后处理，导出 每个空间层的后处理信号与干扰加噪声比（SINR），将空间层的后处理SINR转换为基于瞬时干扰的自适应调谐的每编码比特（MIB）的相互信息， 信号比（ISR），以及从空间层的MIB度量的平均值估计块错误率（BLER）。

公开(公告)号：US09843377B2

公开(公告)日：2017-12-12

申请号：US14282659

申请日：2014-05-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Soo-Bok Yeo ,  Dong-Sik Kim ,  Heun-Chul Lee

IPC: H04B7/0413 ,  H04B7/06 ,  H04W24/08 ,  H04W48/16 ,  H04L25/03

CPC classification number: H04B7/0669 ,  H04B7/0413 ,  H04L25/0328 ,  H04L2025/03426 ,  H04W24/08 ,  H04W48/16

Abstract: A method and an apparatus for measuring a link quality in a wireless communication are provided. The method of a receiver for measuring the link quality in the wireless communication system includes determining a modulation type for each of at least one reception stream received through at least one antenna based on a modulation order and channel information regarding each of signals transmitted from a plurality of transmission antennas, searching for a parameter corresponding to the determined modulation type from a pre-stored parameter table in which parameters for each modulation type are stored, and calculating a channel capacity for each of the at least one reception streams received through the at least one antenna by using the searched parameter.

公开(公告)号：US09288097B2

公开(公告)日：2016-03-15

申请号：US14619861

申请日：2015-02-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Heun-Chul Lee ,  Jong-Han Lim

IPC: H04B7/10 ,  H04L27/34 ,  H04B1/10 ,  H04L25/03 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08

CPC classification number: H04L27/34 ,  H04B1/10 ,  H04B7/0404 ,  H04B7/0413 ,  H04B7/063 ,  H04B7/0639 ,  H04B7/086 ,  H04L25/03923 ,  H04L25/067 ,  H04L27/0008

Abstract: Provided is an interference cancellation method by a User Equipment (UE) in a cellular communication system. The method includes receiving a signal including a desired signal and an interference signal from at least one base station; determining a universal constellation diagram based on at least one of a transmission parameter of the desired signal and a transmission parameter of the interference signal; blindly detecting an additional transmission parameter of the interference signal using the determined universal constellation diagram; and cancelling the interference signal from the received signal using the detected additional transmission parameter.

Abstract translation: 提供了一种蜂窝通信系统中的用户设备（UE）的干扰消除方法。 该方法包括从至少一个基站接收包括所需信号和干扰信号的信号; 基于所述期望信号的传输参数和所述干扰信号的传输参数中的至少一个来确定通用星座图; 使用确定的通用星座图盲目地检测干扰信号的附加传输参数; 以及使用检测到的附加传输参数从接收信号中消除干扰信号。

公开(公告)号：US09955487B2

公开(公告)日：2018-04-24

申请号：US14668212

申请日：2015-03-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Cheol-Kyu Shin ,  Hyo-Jin Lee ,  Heun-Chul Lee ,  Young-Bum Kim ,  Youn-Sun Kim

IPC: H04W72/08 ,  H04L1/00 ,  H04L5/00 ,  H04L27/00

CPC classification number: H04W72/082 ,  H04J11/0023 ,  H04L1/00 ,  H04L1/0047 ,  H04L5/0023 ,  H04L5/0048 ,  H04L27/0008

Abstract: A method for receiving downlink data by a User Equipment (UE) in a wireless communication system is provided. The method includes checking a transmission parameter related to data transmitted from an interfering cell, determining presence/absence of an interference signal based on the transmission parameter, determining whether to apply Network Assisted Interference Cancellation and Suppression (NAICS) technology based on at least one of the transmission parameter or the presence/absence of the interference signal, and decoding the downlink data depending on whether to apply the NAICS technology.

公开(公告)号：US09634785B2

公开(公告)日：2017-04-25

申请号：US14793332

申请日：2015-07-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Heun-Chul Lee ,  Jong-Han Lim

IPC: H04W4/00 ,  H04J11/00 ,  H04B7/04 ,  H04W72/08 ,  H04B7/0413

CPC classification number: H04J11/005 ,  H04B7/0413 ,  H04B7/0486 ,  H04L25/03184 ,  H04L25/03891 ,  H04W72/082

Abstract: An interference cancellation method and apparatus of user equipment in a cellular communication system is provided. The method includes receiving signals including a desired signal and an interference signal from one or more base stations; determining a maximum likelihood (ML) decision metric to determine a value “l” of a rank indicator (RI), a value “p” of a precoding matrix indicator (PMI), and a value “q” of a modulation (MOD) level of the interference signal; applying a logarithm to the ML decision metric, and applying a maximum-log approximation to a serving data vector and an interference data vector, which are included in the ML decision metric; determining the values of “l,” “p,” and “q” using the applied ML decision metric; and cancelling the interference signal from the received signals using the determined values of “l,” “p,” and “q.”

公开(公告)号：US09397811B2

公开(公告)日：2016-07-19

申请号：US14152291

申请日：2014-01-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tae-Yoon Kim ,  Heun-Chul Lee ,  Jong-Han Lim

IPC: H04L5/00

CPC classification number: H04L5/0051 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/005 ,  H04L5/0073 ,  H04L5/0085 ,  H04L5/0096 ,  H04W72/0426

Abstract: A method of transmitting data in a wireless communication, by a first Base Station (BS) is provided. The method includes receiving control information including information related to transmission of a Reference Signal (RS) of at least one second BS from the at least one second BS adjacent to the first BS and transmitting data by using a preset method based on the control information when an RS transmission mode of the at least one second BS is different from an RS transmission mode of the first BS.

Abstract translation: 提供了一种通过第一基站（BS）在无线通信中发送数据的方法。 该方法包括接收控制信息，该控制信息包括与来自与第一BS相邻的至少一个第二BS的至少一个第二BS的参考信号（RS）的传输相关的信息，并且基于控制信息使用预设方法来发送数据， 所述至少一个第二BS的RS传输模式不同于所述第一BS的RS传输模式。