公开(公告)号：US20120307748A1

公开(公告)日：2012-12-06

申请号：US13311153

申请日：2011-12-05

Applicant: Shan CHENG ,  Rakesh TAORI

Inventor： Shan CHENG ,  Rakesh TAORI

IPC: H04W72/04

CPC classification number: H04W72/1215 ,  H04L1/1812 ,  H04L5/0005 ,  H04L5/0042 ,  H04L5/0053 ,  H04L5/006 ,  H04W16/14 ,  H04W88/06

Abstract: A method and apparatus for simultaneously communicating on at least two carrier frequencies, of which at least one carrier frequency is a licensed band and at least one carrier frequency is an unlicensed band are provided. The method includes broadcasting an operating status of the unlicensed band to a receiver device; collecting feedback data regarding channel conditions from the receiver device for both the licensed band and unlicensed band; determining, when a bandwidth request is received from the receiver device, whether to use the unlicensed band based on the channel conditions; transmitting an unlicensed band scheduling indication to the receiver device; and communicating with the receiver device using both the licensed band and the unlicensed band according to the transmitted unlicensed band scheduling indication.

Abstract translation: 提供一种用于在至少两个载波频率上同时通信的方法和装置，其中至少一个载波频率是许可频带，并且至少一个载波频率是非许可频带。 该方法包括将无许可频带的操作状态广播到接收机设备; 从所述接收机设备收集关于所述许可频带和未许可频带的关于信道条件的反馈数据; 当从所述接收机设备接收到带宽请求时，确定是否根据所述信道条件使用所述非许可频带; 向所述接收机设备发送未许可频带调度指示; 以及根据所发送的未许可频带调度指示，使用许可频带和未许可频带与接收机设备进行通信。

公开(公告)号：US20110170435A1

公开(公告)日：2011-07-14

申请号：US12987436

申请日：2011-01-10

Applicant: Youn Sun KIM ,  Jin Kyu HAN ,  Sung Tae KIM ,  Myung Hoon YEON ,  Shan CHENG ,  In Ho LEE

Inventor： Youn Sun KIM ,  Jin Kyu HAN ,  Sung Tae KIM ,  Myung Hoon YEON ,  Shan CHENG ,  In Ho LEE

IPC: H04W72/04 ,  H04L12/26

CPC classification number: H04L1/0693 ,  H04B17/24 ,  H04B17/318 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/06 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/0073 ,  H04L5/0082 ,  H04L5/0092 ,  H04L25/0226 ,  H04L2025/03426 ,  H04L2025/03802 ,  H04W72/04 ,  H04W72/042 ,  H04W72/085 ,  H04W72/1226 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/20

Abstract: A method for processing a Channel State Information Reference Signal (CSI-RS) in a wireless communication system based on a multiple access scheme is provided. The CSI-RS transmission method defines a plurality of CSI-RS patterns, assigns the CSI-RS patterns to individual cells, uses the CSI-RSs alternately per Physical Resource Block (PRB) so as to utilize the transmission powers of all antenna ports for transmitting CSI-RSs, transmits Coordinated Multi Point (CoMP) CSI-RSs and non-CoMP CSI-RSs separately, and mutes specific resources in association with the CSI-RS pattern of adjacent cells.

Abstract translation: 提供了一种在基于多址方案的无线通信系统中处理信道状态信息参考信号（CSI-RS）的方法。 CSI-RS传输方法定义了多个CSI-RS模式，将CSI-RS模式分配给各个小区，每个物理资源块（PRB）交替使用CSI-RS，以便利用所有天线端口的发射功率 发送CSI-RS，分别发送协调多点（CoMP）CSI-RS和非CoMP CSI-RS，并将相邻小区的CSI-RS模式相关联的特定资源静音。

公开(公告)号：US20110051749A1

公开(公告)日：2011-03-03

申请号：US12871360

申请日：2010-08-30

Applicant: Shan CHENG ,  Sung Tae KIM ,  Jin Kyu HAN

Inventor： Shan CHENG ,  Sung Tae KIM ,  Jin Kyu HAN

IPC: H04J1/00

CPC classification number: H04L5/0048

Abstract: A method is provided for determining reference signal positions in a frequency-time domain in an Orthogonal Frequency Division Multiple Access (OFDMA) system. A plurality of sub-carriers are selected in one resource block according to a predetermined mother pattern for reference signal allocation. When a single resource block is assigned for transmission to a user, the reference signal positions are determined corresponding to the plurality of selected sub-carriers in the single resource block. When multiple resource blocks are assigned for transmission to a user, the reference signal positions are determined in the multiple resource blocks by reducing a number of the plurality of selected sub-carriers in the mother pattern for at least one of the multiple resource blocks.

Abstract translation: 提供一种用于确定正交频分多址（OFDMA）系统中的频域中的参考信号位置的方法。 根据用于参考信号分配的预定母模式，在一个资源块中选择多个子载波。 当单个资源块被分配用于传输给用户时，在单个资源块中对应于多个选择的子载波来确定参考信号位置。 当多个资源块被分配用于传输给用户时，通过减少多个资源块中的至少一个的母模式中的多个所选择的子载波的数量，在多个资源块中确定参考信号位置。

公开(公告)号：US20130163499A1

公开(公告)日：2013-06-27

申请号：US13311175

申请日：2011-12-05

Applicant: Shan CHENG ,  Youn Sun Kim ,  Ju Ho Lee ,  Jin Kyu Han

Inventor： Shan CHENG ,  Youn Sun Kim ,  Ju Ho Lee ,  Jin Kyu Han

IPC: H04W72/00

CPC classification number: H04J11/0079 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0048 ,  H04L5/0069 ,  H04L5/008 ,  H04L5/0091 ,  H04W72/005

Abstract: An apparatus and method for transmitting reference signals in a communication system are provided. The method includes transmitting common reference signals of a first type from a transmitter to a plurality of receivers; transmitting receiver-specific reference signals of a second type from a plurality of distributed ports to a subset of the plurality of receivers; wherein the common reference signals of the first type and the receiver-specific reference signals of the second type are allocated to different resources from one another, and wherein the communication system includes the transmitter and the plurality of receivers and the transmitter uses a plurality of central ports and the plurality of distributed ports to transmit to the plurality of receivers.

Abstract translation: 提供了一种用于在通信系统中发送参考信号的装置和方法。 该方法包括从发射机向多个接收机发送第一类型的公共参考信号; 将第二类型的接收机专用参考信号从多个分布式端口发射到所述多个接收机的子集; 其中所述第一类型的公共参考信号和所述第二类型的接收机专用参考信号彼此分配给不同的资源，并且其中所述通信系统包括所述发射机和所述多个接收机，并且所述发射机使用多个中心 端口和多个分布式端口传输到多个接收机。

公开(公告)号：US20110305295A1

公开(公告)日：2011-12-15

申请号：US13156685

申请日：2011-06-09

Applicant: Sung Tae KIM ,  Youn Sun KIM ,  Jin-Kyu HAN ,  Myung Hoon YEON ,  Shan CHENG

Inventor： Sung Tae KIM ,  Youn Sun KIM ,  Jin-Kyu HAN ,  Myung Hoon YEON ,  Shan CHENG

IPC: H04L27/00

CPC classification number: H04B1/0475 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0057

Abstract: A method and apparatus for transmitting Channel State Information Reference Symbol (CSI-RS) and data with partial muting of the CSI-RS are proposed. The method includes determining a CSI-RS pattern to be used among CSI-RS pattern candidates, determining a muting pattern for muting some resource elements constituting CSI-RS pattern candidates except for the determined CSI-RS pattern, mapping data symbols and CSI-RS to resource elements in a resource grid with rate patching in consideration of the CSI-RS pattern and muting pattern, and transmitting the data symbols and CSI-RS to a terminal.

Abstract translation: 提出了一种用于发送信道状态信息参考符号（CSI-RS）的方法和装置以及具有CSI-RS的部分静噪的数据。 该方法包括确定在CSI-RS模式候选中要使用的CSI-RS模式，确定用于使构成除了确定的CSI-RS模式之外的CSI-RS模式候选的一些资源元素静噪的静噪模式，映射数据符号和CSI-RS 考虑到CSI-RS模式和静噪模式，利用速率修补的资源网格中的资源元素，并将数据符号和CSI-RS发送到终端。

公开(公告)号：US20120113920A1

公开(公告)日：2012-05-10

申请号：US13292445

申请日：2011-11-09

Applicant: Shan CHENG ,  Joon Young CHO

Inventor： Shan CHENG ,  Joon Young CHO

IPC: H04W72/04

CPC classification number: H04W52/325 ,  H04L5/0073 ,  H04W52/346 ,  H04W72/04

Abstract: A resource allocation method of a base station in a wireless communication system based on a radio frame including a plurality of subframes including at least one first-type subframe and at least one second-type subframe is provided. The method includes generating first-type downlink control information including resource allocation information on the first-type subframe, generating second-type downlink control information including resource allocation information on the second-type subframe, and transmitting the first-type subframe including the first-type downlink control information and the second-type downlink control information, wherein the second-type subframe is transmitted with a lower transmit power than the transmit power of the first-type subframe.

Abstract translation: 提供了一种基于包括包括至少一个第一类型子帧和至少一个第二类型子帧的多个子帧的无线电帧的无线通信系统中的基站的资源分配方法。 该方法包括生成包括第一类型子帧上的资源分配信息的第一类型下行链路控制信息，生成包括关于第二类型子帧的资源分配信息的第二类型下行链路控制信息，以及发送包含第一类型子帧的第一类型子帧， 类型下行链路控制信息和第二类型下行链路控制信息，其中以比第一类型子帧的发送功率更低的发送功率发送第二类型子帧。

公开(公告)号：US20080076433A1

公开(公告)日：2008-03-27

申请号：US11862619

申请日：2007-09-27

Applicant: Shan CHENG ,  Eun-Taek LIM ,  Young-Bin CHANG ,  Chang-Yoon OH ,  Dong-Seek PARK ,  Pan-Yuh JOO ,  Joon-Young CHOI

Inventor： Shan CHENG ,  Eun-Taek LIM ,  Young-Bin CHANG ,  Chang-Yoon OH ,  Dong-Seek PARK ,  Pan-Yuh JOO ,  Joon-Young CHOI

IPC: H04Q7/20

CPC classification number: H04W16/26 ,  H04B7/0413 ,  H04B7/2606 ,  H04W28/18 ,  H04W28/24

Abstract: In a mobile communication system, a relay station (RS) is used for signal exchange with a base station (BS), and includes a first antenna set including at least one antenna, used for signal exchange with the BS, and a second antenna set including at least one antenna, used for signal exchange with a mobile station (MS). The RS selects at least one antenna from the second antenna set for each of the at least one MS, and exchanges a signal with the MS using the selected at least one antenna.

Abstract translation: 在移动通信系统中，中继站（RS）用于与基站（BS）的信号交换，并且包括第一天线组，其包括用于与BS进行信号交换的至少一个天线，以及第二天线组 包括用于与移动台（MS）进行信号交换的至少一个天线。 所述RS为所述至少一个MS中的每个MS从所述第二天线组中选择至少一个天线，并且使用所选择的至少一个天线与所述MS交换信号。