公开(公告)号：US20110075762A1

公开(公告)日：2011-03-31

申请号：US12922440

申请日：2009-03-11

Applicant: Hyung Joon Jeon

Inventor： Hyung Joon Jeon

IPC: H04L25/49

CPC classification number: H04W72/1252 ,  H04W36/20 ,  H04W72/082

Abstract: Disclosed is a method and apparatus for mitigating uplink interference in the wireless communication system, wherein the method comprises determining a loading-status value for each sector; if the loading-status value is not greater than the first threshold value, generating UL zone switch IE and UL allocation start IE to allocate data bursts of the sectors to different subchannels; and preparing an uplink map using the UL zone switch IE and UL allocation start IE for each sector, wherein the uplink duration indicates a duration where all the subchannels are used for allocation of the data burst.

Abstract translation: 公开了一种用于减轻无线通信系统中的上行链路干扰的方法和装置，其中该方法包括确定每个扇区的加载状态值; 如果加载状态值不大于第一阈值，则产生UL区切换IE和UL分配开始IE，以将扇区的数据突发分配给不同的子信道; 以及为每个扇区使用UL区域交换机IE和UL分配开始IE准备上行链路映射，其中上行链路持续时间指示所有子信道用于数据突发的分配的持续时间。

公开(公告)号：US20100302989A1

公开(公告)日：2010-12-02

申请号：US12864483

申请日：2009-01-23

Applicant: Su Lyun Sung ,  Bong Ho Kim

Inventor： Su Lyun Sung ,  Bong Ho Kim

IPC: H04W40/00

CPC classification number: H04L45/16 ,  H04L12/189 ,  H04W4/06

Abstract: Disclosed is a mobile internet system, and more particularly, to a method and apparatus for supporting a multicast broadcast service (MBS) over WIMAX. The MBS supporting method of the present invention comprises assigning a first GRE key to a first MBS service flow for a first MS, and delivering MBS contents having the first MBS service flow through the use of first GRE key; and if a second MBS service flow for a second MS is the same as the first MBS service flow, delivering MBS contents having the second MBS service flow through the use of first GRE key pre-assigned to the first MBS service flow.

Abstract translation: 公开了一种移动互联网系统，更具体地，涉及一种用于通过WIMAX支持多播广播服务（MBS）的方法和装置。 本发明的MBS支持方法包括：将第一GRE密钥分配给第一MS的第一MBS业务流，并通过使用第一GRE密钥传送具有第一MBS业务流的MBS内容; 并且如果第二MS的第二MBS服务流与第一MBS服务流相同，则通过使用预分配给第一MBS服务流的第一GRE密钥来传送具有第二MBS服务流的MBS内容。

公开(公告)号：US08259653B2

公开(公告)日：2012-09-04

申请号：US12745490

申请日：2008-11-27

Applicant: Bong-Ho Kim ,  Su-Lyun Sung

Inventor： Bong-Ho Kim ,  Su-Lyun Sung

IPC: H04W4/00

CPC classification number: H04W76/40 ,  H04L12/189 ,  H04W88/182

Abstract: An apparatus and method for supporting MultiCast and BroadCast Service (MCBCS) proxy selection for MCBCS and macro diversity in a wireless communication system is provided. The apparatus and method selects a first MCBCS proxy among MCBCS proxies in the plurality of ASNs as a master MCBCS proxy, and selects other MCBCS proxies except for the first MCBCS proxy as slave MCBCS proxies, and the first MCBCS proxy transmits information for macro diversity to the slave MCBCS proxies, wherein the master MCBCS proxy first receives an MCBCS join message from a Mobile Station (MS) in one Multicast and Broadcast Service (MBS) zone.

Abstract translation: 提供了一种用于在无线通信系统中支持用于MCBCS和宏分集的MultiCast和BroadCast服务（MCBCS）代理选择的装置和方法。 该装置和方法在多个ASN中的MCBCS代理之间选择第一MCBCS代理作为主MCBCS代理，并且选择除第一MCBCS代理之外的其他MCBCS代理作为从MCBCS代理，并且第一MCBCS代理将用于宏分集的信息发送到 从属MCBCS代理，其中主MCBCS代理首先从一个多播和广播服务（MBS）区域中的移动站（MS）接收MCBCS加入消息。

公开(公告)号：US08229045B2

公开(公告)日：2012-07-24

申请号：US12159698

申请日：2006-12-28

Applicant: Ki Young Kwak ,  Kang Min Lee ,  Ji Myung Oh ,  Yong Suk Hwang

Inventor： Ki Young Kwak ,  Kang Min Lee ,  Ji Myung Oh ,  Yong Suk Hwang

IPC: H03D1/04

CPC classification number: H04L5/0048 ,  H04B17/24 ,  H04B17/26 ,  H04B17/336 ,  H04L5/0007 ,  H04L5/0037 ,  H04L25/0232 ,  H04L27/2647 ,  H04W52/241 ,  H04W52/246

Abstract: Provided are an apparatus and method for measuring a carrier-to-interference and noise ratio (CINR) using a pilot symbol in a digital communication system, and more particularly, to an apparatus and method for measuring a CINR by estimating a data signal, noise, and an interference signal from a pilot symbol in a digital communication system using orthogonal frequency division multiplexing (OFDM)/orthogonal frequency division multiplexing access (OFDMA). The apparatus includes: a pilot symbol acquisition unit for acquiring the pilot symbol from a baseband frequency signal; a signal estimation unit for estimating a pilot signal and a data signal from the pilot symbol; a power calculation unit for calculating a power value of the estimated data signal and calculating a power value of a noise signal from a difference between the pilot symbol and an estimated pilot signal; and a CINR calculation unit for calculating a CINR on the basis of the power values of the data and noise signals. Thus, a pilot symbol is used for more easily and precisely measuring a CINR of a received signal, and scheduling of a base station and transmission power control of a terminal are performed on the basis of the measured CINR.

Abstract translation: 提供了一种在数字通信系统中使用导频符号来测量载波与干扰和噪声比（CINR）的装置和方法，更具体地，涉及一种通过估计数据信号，噪声来测量CINR的装置和方法 以及使用正交频分复用（OFDM）/正交频分复用接入（OFDMA）的数字通信系统中的导频符号的干扰信号。 该装置包括：导频符号获取单元，用于从基带频率信号获取导频符号; 信号估计单元，用于估计来自导频符号的导频信号和数据信号; 功率计算单元，用于计算估计数据信号的功率值，并根据导频符号和估计导频信号之间的差计算噪声信号的功率值; 以及CINR计算单元，用于基于数据和噪声信号的功率值来计算CINR。 因此，导频符号用于更容易且精确地测量接收信号的CINR，并且基于所测量的CINR来执行基站的调度和终端的传输功率控制。

公开(公告)号：US20120114066A1

公开(公告)日：2012-05-10

申请号：US13141973

申请日：2009-12-23

Applicant: Bal Geum Choi ,  Jung Hyun Heo

Inventor： Bal Geum Choi ,  Jung Hyun Heo

IPC: H04L27/00 ,  H04B1/04

CPC classification number: H04B7/043 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/063 ,  H04B7/0639

Abstract: Disclosed is a weight factor matrix determining method for beamforming in a base station in order for inter-cell interference to be removed. The weight factor matrix determining method for beamforming which includes: determining a first transmission power for a first terminal being a target terminal and a second transmission power for a plurality of second terminals other than the target terminal; calculating an Eigen vector with an Eigen value for a ratio of the first and second transmission powers; and determining a weight factor matrix in a serving base station, with the calculated Eigen vector.

Abstract translation: 公开了一种用于基站中的波束成形的权重因子矩阵确定方法，以便去除小区间干扰。 一种用于波束成形的权重因子矩阵确定方法，包括：确定作为目标终端的第一终端的第一传输功率和除目标终端之外的多个第二终端的第二传输功率; 计算具有第一和第二传输功率的比率的特征值的特征向量; 以及使用所计算的特征向量来确定服务基站中的权重因子矩阵。

公开(公告)号：US08165249B2

公开(公告)日：2012-04-24

申请号：US12439514

申请日：2007-08-30

Applicant: Zheng Zi Li ,  Byung-Chul Kim ,  Sang-Bae Ji

Inventor： Zheng Zi Li ,  Byung-Chul Kim ,  Sang-Bae Ji

IPC: H04L27/06

CPC classification number: H04L27/2657 ,  H04B7/04 ,  H04L5/0023 ,  H04L5/0048 ,  H04L27/2662 ,  H04L27/2675 ,  H04L2027/003 ,  H04L2027/0095

Abstract: The present invention relates to an apparatus and method for estimating and compensating for a time offset and a carrier frequency offset in a Multiple Input Multiple Output (MIMO) communication system that supports Orthogonal Frequency Division Multiplexing (OFDM) or Orthogonal Frequency Division Multiplexing Access (OFDMA). According to the present invention, a phase difference of pilot signals of the same transmitting antenna, which are received through receiving antennas, is calculated. An arc tangent operation is then carried out on the phase difference of the pilot signals to calculate a time offset linear phase and/or a carrier frequency offset linear phase. Further, a time offset compensation value and/or a carrier frequency offset compensation value are found by employing the time offset linear phase and/or the carrier frequency offset linear phase. A time offset and/or a carrier frequency offset with respect to pilots and data are compensated for by employing the time offset compensation value and/or the carrier frequency offset compensation value.

Abstract translation: 本发明涉及一种用于在支持正交频分复用（OFDM）或正交频分复用接入（OFDMA）的多输入多输出（MIMO）通信系统中估计和补偿时间偏移和载波频率偏移的装置和方法 ）。 根据本发明，计算通过接收天线接收的相同发射天线的导频信号的相位差。 然后对导频信号的相位差执行反正切运算，以计算时间偏移线性相位和/或载波频率偏移线性相位。 此外，通过采用时间偏移线性相位和/或载波频率偏移线性相位来找到时间偏移补偿值和/或载波频率偏移补偿值。 相对于导频和数据的时间偏移和/或载波频率偏移通过采用时间偏移补偿值和/或载波频率偏移补偿值来补偿。

公开(公告)号：US20120093111A1

公开(公告)日：2012-04-19

申请号：US13318295

申请日：2010-05-11

Applicant: Jun-Seong Park ,  Jae-Hyun Ahn

Inventor： Jun-Seong Park ,  Jae-Hyun Ahn

IPC: H04W72/04

CPC classification number: H04W16/02 ,  H04W4/12 ,  H04W48/08

Abstract: The present invention relates to an apparatus and method for allocating a MAP message region in a broadband wireless communication system having a multi-cell/-sector structure. The present invention allocates a common MAP message region for multiple cells/sectors and a data region, divides the common MAP message region into MAP message sections for each of the cells or each of the sectors, allocates MAP messages corresponding to each of the cells or each of the sectors to the divided MAP message sections and allocates data to be transmitted to each MS to the data region, and broadcasts multiple frames containing MAP message regions for each of the cells or for each of the sectors and the data region.

Abstract translation: 本发明涉及一种用于在具有多小区/分片结构的宽带无线通信系统中分配MAP消息区域的装置和方法。 本发明为多个小区/扇区和数据区域分配公共MAP消息区域，将公共MAP消息区域划分成用于每个小区或每个扇区的MAP消息区段，分配与每个小区对应的MAP消息， 将每个扇区分配给划分的MAP消息部分，并将要发送到每个MS的数据分配给数据区域，并且广播包含用于每个小区或每个扇区和数据区域的MAP消息区域的多个帧。

公开(公告)号：US08126068B2

公开(公告)日：2012-02-28

申请号：US12161182

申请日：2007-01-12

Applicant: Hyung Seob Kim ,  Kang Min Lee

Inventor： Hyung Seob Kim ,  Kang Min Lee

IPC: H04K1/10 ,  H04L27/06

CPC classification number: H04L27/2647 ,  H04L25/022 ,  H04L25/0232

Abstract: Provided are a method and device for estimating a channel in a wireless communication system, and more particularly, a method of estimating a channel of an uplink signal in an orthogonal frequency division multiplexing (OFDM)/orthogonal frequency division multiple access (OFDMA) communication system supporting the Institute of Electrical and Electronics Engineers (IEEE) 802.16d/e standards and a channel estimation device employing the method. The method includes the steps of: extracting pilot symbols included in the received signal and estimating linear phase values using the pilot symbols; interpolating the pilot symbols along a time axis and obtaining first channel responses; interpolating the pilot symbols along a frequency axis according to the first channel responses and obtaining second channel responses; and calculating channel estimation values using the second channel responses and the linear phase values.

Abstract translation: 提供一种用于估计无线通信系统中的信道的方法和装置，更具体地，涉及一种在正交频分复用（OFDM）/正交频分多址（OFDMA）通信系统中估计上行链路信号的信道的方法 支持电气和电子工程师协会（IEEE）802.16d / e标准和采用该方法的信道估计装置。 该方法包括以下步骤：提取包含在接收信号中的导频符号并使用导频符号估计线性相位值; 沿着时间轴内插导频符号并获得第一信道响应; 根据第一信道响应沿着频率轴内插导频符号并获得第二信道响应; 以及使用所述第二信道响应和所述线性相位值来计算信道估计值。

公开(公告)号：US08126067B2

公开(公告)日：2012-02-28

申请号：US12158547

申请日：2006-12-29

Applicant: Yong-suk Hwang ,  Jae-hyeong Kim

Inventor： Yong-suk Hwang ,  Jae-hyeong Kim

IPC: H04L27/28

CPC classification number: H04L25/023 ,  H04L5/023 ,  H04L27/2647 ,  H04L27/2662

Abstract: Disclosed are an apparatus and a method for estimating a channel in a base station when using a Partial Usage of Sub-Channels (PUSC) mode in an uplink channel of the communication system supporting Orthogonal Frequency Division Multiplexing/Orthogonal Frequency Division Multiple Access (OFDM/OFDMA). For this, the channel estimation apparatus used in the communication system supporting the OFDM/OFDMA comprises a phase estimation/compensation unit estimating and compensating phase change of a channel by using pilots included in signals input by sub-channel; and a channel estimation unit estimating the channel by averaging the pilots of the signals of which the phase is compensated.

Abstract translation: 公开了一种用于在支持正交频分复用/正交频分多址（OFDM / OFDM）的通信系统的上行链路信道中使用子信道（PUSC）模式的部分使用时估计基站中的信道的装置和方法， OFDMA）。 为此，在支持OFDM / OFDMA的通信系统中使用的信道估计装置包括通过使用由子信道输入的信号中包含的导频来估计和补偿信道的相位变化的相位估计/补偿单元; 以及信道估计单元通过对相位被补偿的信号的导频进行平均来估计信道。

公开(公告)号：US20120040709A1

公开(公告)日：2012-02-16

申请号：US13264756

申请日：2010-04-02

Applicant: Kuk Jin Song ,  Seung Hyun Lee

Inventor： Kuk Jin Song ,  Seung Hyun Lee

IPC: H04W52/04

CPC classification number: H04W52/262 ,  H04W52/365

Abstract: Disclosed is an apparatus for reporting transmission power. The apparatus for reporting transmission power includes a transmission power normalization unit, a message generation unit, and a transmission unit. The transmission power normalization unit normalizes a first transmission power at a current Modulation and Coding Scheme (MCS) level into a second transmission power at a reference MCS level, the current MCS level being an MCS level of a burst which is intended to comprise a transmission power report of a terminal. The message generation unit generates a message comprising the transmission power report of the terminal with the second transmission power defined therein. The transmission unit transmits the generated message to a base station.

Abstract translation: 公开了一种报告发送功率的装置。 用于报告发送功率的装置包括发送功率归一化单元，消息生成单元和发送单元。 传输功率归一化单元将当前调制和编码方案（MCS）级别的第一传输功率归一化为参考MCS级别的第二传输功率，当前MCS级别是旨在包括传输的突发的MCS级别 终端电力报告。 消息生成单元生成包含终端的发送功率报告和消息中定义的第二发送功率的消息。 发送单元将生成的消息发送到基站。