公开(公告)号：US20110228739A1

公开(公告)日：2011-09-22

申请号：US13130046

申请日：2009-11-18

Applicant: Sang-Heon Shin ,  Young-Ik Seoul ,  Seong-Won Oh

Inventor： Sang-Heon Shin ,  Young-Ik Seoul ,  Seong-Won Oh

IPC: H04W72/04

CPC classification number: H04W28/20 ,  H04W72/0413 ,  H04W72/0453

Abstract: The present invention relates to a method and to an apparatus for allocating a bandwidth in a wideband wireless communication system. Said method comprises: allocating a bandwidth to an uplink burst area in accordance with the bandwidth request received from at least one terminal; determining whether a preemptive grant bandwidth allocation is enabled or not; determining a preemptive grant terminal if the preemptive grant bandwidth allocation is enabled; and allocating a preemptive grant bandwidth within a residual bandwidth to the determined preemptive grant terminal. By doing this, the present invention can efficiently use the bandwidth of an uplink frame, and shorten the time taken for bandwidth request/approval between a terminal and a base station.

Abstract translation: 本发明涉及在宽带无线通信系统中分配带宽的方法和装置。 所述方法包括：根据从至少一个终端接收到的带宽请求，向上行链路突发区域分配带宽; 确定是否启用抢占式授权带宽分配; 如果启用了抢占式授权带宽分配，则确定抢占式授权终端; 以及将剩余带宽内的抢占许可带宽分配给所确定的抢占授权终端。 通过这样做，本发明可以有效地使用上行链路帧的带宽，并且缩短终端和基站之间的带宽请求/批准所花费的时间。

公开(公告)号：US20110058506A1

公开(公告)日：2011-03-10

申请号：US12991102

申请日：2009-05-04

Applicant: Jung-Woo Lee ,  Jian-Jun Li

Inventor： Jung-Woo Lee ,  Jian-Jun Li

IPC: H04J3/00 ,  H04L27/00

CPC classification number: H04B7/0619 ,  H04L25/0204

Abstract: This invention relates to a device and a method for transmitting channel information in a wireless communication system. The disclosed device and method are characterized by: estimating channels by dividing the channel matrix elements for a complex channel into a real number part and an imaginary number part; quantizing each channel which is estimated through the division into the real and imaginary number parts based on a preset boundary value; generating the channel information corresponding to the quantization value for the real and imaginary number parts of the channel matrix elements; and transmitting the generated channel information to a transmitter.

Abstract translation: 本发明涉及在无线通信系统中发送信道信息的装置和方法。 所公开的设备和方法的特征在于：通过将用于复数信道的信道矩阵元素划分为实数部分和虚数部分来估计信道; 基于预设的边界值，将通过划分估计的每个通道量化为实数和虚数部分; 产生与信道矩阵元素的实数和虚数部分的量化值对应的信道信息; 以及将所生成的信道信息发送到发射机。

公开(公告)号：US20120120873A1

公开(公告)日：2012-05-17

申请号：US13263695

申请日：2010-04-05

Applicant: Kuk Jin Song ,  Seung Hyun Lee ,  Hyung Joon Jeon ,  Il Nyun Kim ,  Kwang Sung Kim

Inventor： Kuk Jin Song ,  Seung Hyun Lee ,  Hyung Joon Jeon ,  Il Nyun Kim ,  Kwang Sung Kim

IPC: H04B7/02 ,  H04W4/00

CPC classification number: H04B7/0871 ,  H04B7/04 ,  H04B7/0689 ,  H04B7/0697 ,  H04B17/336

Abstract: Disclosed is an apparatus for switching MIMO modes, which can efficiently switch an MIMO mode of a mobile station. The apparatus for switching MIMO modes includes an MIMO mode determining unit, a staying time determining unit, and an MIMO mode switching unit. The MIMO mode determining unit determines a current MIMO mode of a mobile station. The staying time determining unit determines a first staying time in a first MIMO mode of the mobile station when the MIMO mode determining unit determines the current MIMO mode of the mobile station as the first MIMO mode for transmitting the same data through a plurality of antennas, and determines a second staying time in a second MIMO mode of the mobile station when the MIMO mode determining unit determines the current MIMO mode of the mobile station as the second MIMO mode for transmitting different data by antenna. The MIMO mode switching unit switches the MIMO mode of the mobile station to the second MIMO mode when the first staying time is greater than or equal to a first threshold staying time.

Abstract translation: 公开了一种用于切换MIMO模式的装置，其可以有效地切换移动台的MIMO模式。 用于切换MIMO模式的装置包括MIMO模式确定单元，停留时间确定单元和MIMO模式切换单元。 MIMO模式确定单元确定移动台的当前MIMO模式。 停留时间确定单元在MIMO模式确定单元确定移动站的当前MIMO模式作为通过多个天线发送相同数据的第一MIMO模式时，确定移动站的第一MIMO模式中的第一停留时间， 并且当所述MIMO模式确定单元将所述移动站的当前MIMO模式确定为用于通过天线发送不同数据的第二MIMO模式时，确定所述移动站的第二MIMO模式中的第二停留时间。 当第一停留时间大于或等于第一阈值停留时间时，MIMO模式切换单元将移动站的MIMO模式切换到第二MIMO模式。

公开(公告)号：US08139652B2

公开(公告)日：2012-03-20

申请号：US12158559

申请日：2006-12-29

Applicant: Kang-min Lee ,  Sung-jin Kang

Inventor： Kang-min Lee ,  Sung-jin Kang

IPC: H04B14/04

CPC classification number: H04L1/0071 ,  H04L1/0054 ,  H04L1/0072 ,  H04L1/08 ,  H04L27/2647

Abstract: Disclosed is a method and an apparatus for decoding transmission signal. The method includes the steps of: receiving transmission signal including repeated symbols; deinterleaving the received signal; mutually combining the repeated symbols in the deinterleaved signal; and decoding the combined symbols. According to the method, reception performance is improved as compared to a conventional decoding method, and system performance is improved by reducing the loss of frame information included in an FCH.

Abstract translation: 公开了一种解码发送信号的方法和装置。 该方法包括以下步骤：接收包括重复符号的发送信号; 解交织接收到的信号; 在去交错信号中相互组合重复符号; 并对组合符号进行解码。 根据该方法，与常规解码方法相比，接收性能得到改善，并且通过减少包括在FCH中的帧信息的丢失来提高系统性能。

公开(公告)号：US20120045019A1

公开(公告)日：2012-02-23

申请号：US13318145

申请日：2010-04-30

Applicant: Jianjun Li ,  Jae Hyeon Ahn ,  Zhengzi Li ,  Hyung Joon Jeon

Inventor： Jianjun Li ,  Jae Hyeon Ahn ,  Zhengzi Li ,  Hyung Joon Jeon

IPC: H04L25/497

CPC classification number: H04B7/0413 ,  H04B7/0639 ,  H04L25/03942 ,  H04L2025/03764

Abstract: Disclosed is a method for determining precoding matrix based on an open-loop MIMO scheme, which can enhance a diversity gain at a static communication environment or a low-mobility communication environment. The method for determining precoding matrix applies a first precoding matrix to downstream data to transmit the downstream data through a plurality of antennas, the first precoding matrix being selected from a codebook which comprises a plurality of precoding matrixes, and changes the first precoding matrix to a second precoding matrix per predetermined period, and applying the second precoding matrix to the downstream data to transmit the downstream data through the antennas. The second precoding matrix is a precoding matrix corresponding to an index which has been shifted by a certain value from an index of the first precoding matrix in a direction where an index of a precoding matrix increases, in the codebook

Abstract translation: 公开了一种基于开环MIMO方案确定预编码矩阵的方法，其可以增强静态通信环境或低移动性通信环境下的分集增益。 用于确定预编码矩阵的方法将第一预编码矩阵应用于下游数据以通过多个天线发送下行数据，所述第一预编码矩阵从包括多个预编码矩阵的码本中选择，并将第一预编码矩阵改变为 第二预编码矩阵，并且将第二预编码矩阵应用于下游数据，以通过天线发送下行数据。 第二预编码矩阵是对应于在码本中在预编码矩阵的索引增加的方向上已经从第一预编码矩阵的索引偏移特定值的索引的预编码矩阵

公开(公告)号：US20110317639A1

公开(公告)日：2011-12-29

申请号：US13142253

申请日：2009-12-24

Applicant: Seung-Hyun Lee ,  Kuk-Jin Song

Inventor： Seung-Hyun Lee ,  Kuk-Jin Song

IPC: H04W52/04 ,  H04W72/04 ,  H04W74/04

CPC classification number: H04W72/1268 ,  H04L1/0015 ,  H04L1/1887

Abstract: The present invention relates to a method and system for controlling an uplink (UL) in a wireless communication system, wherein packet scheduling is performed on the data packet of a mobile station to allocate multiple bursts, the parameters of the mobile station and the multiple bursts are verified, and the parameters are used to determine the MCS (Modulation and Coding Scheme) level and transmission power level for the multiple bursts.

Abstract translation: 本发明涉及一种用于控制无线通信系统中的上行链路（UL）的方法和系统，其中对移动台的数据分组执行分组调度以分配多个突发，移动台的参数和多个突发 被验证，并且使用这些参数来确定多个突发的MCS（调制和编码方案）级别和传输功率电平。

公开(公告)号：US08036103B2

公开(公告)日：2011-10-11

申请号：US12300041

申请日：2007-05-23

Applicant: Jun-Ho Chung ,  Sung-Soo Oh ,  Shin-Ha Kang ,  Jung-Sik Choi

Inventor： Jun-Ho Chung ,  Sung-Soo Oh ,  Shin-Ha Kang ,  Jung-Sik Choi

IPC: G01R31/08 ,  H04L12/66 ,  H04J3/12

CPC classification number: H04W88/08 ,  H04W24/00

Abstract: The present invention relates to a portable internet radio access station, and more particularly, to a portable internet radio access station including a plurality of management processors and a method of controlling the plurality of management processors. A first management processor of a portable internet radio access station according to the present invention includes: an obstruction sensing unit sensing an obstruction in the first and second management processors; a call processing database storing a call processing information of the portable internet radio access station; an operation state determining unit determining an operation state of the first management processor based on the obstruction; and a database synchronizing unit synchronizing the call processing database with a call processing database of the second management processor based on the operation state of the first management processor Accordingly, continuity and reliability in call processing are obtained in the portable internet radio access station of the present invention.

Abstract translation: 便携式无线电接入站技术领域本发明涉及一种便携式无线电接入站，更具体地，涉及包括多个管理处理器的便携式因特网无线电接入站和控制多个管理处理器的方法。 根据本发明的便携式因特网无线电接入站的第一管理处理器包括：障碍物感测单元，感测第一和第二管理处理器中的障碍物; 呼叫处理数据库，存储便携式无线电接入站的呼叫处理信息; 操作状态确定单元，基于所述障碍物确定所述第一管理处理器的操作状态; 以及基于第一管理处理器的操作状态的呼叫处理数据库与第二管理处理器的呼叫处理数据库同步的数据库同步单元。因此，在本发明的便携式无线电接入站中获得呼叫处理中的连续性和可靠性 发明。

公开(公告)号：US08369465B2

公开(公告)日：2013-02-05

申请号：US12158570

申请日：2006-12-28

Applicant: Ji-myung Oh ,  Yong-suk Hwang ,  Jae-hyeong Kim

Inventor： Ji-myung Oh ,  Yong-suk Hwang ,  Jae-hyeong Kim

IPC: H04L27/06

CPC classification number: H04L27/2657 ,  H04L27/2678

Abstract: The present invention relates to an apparatus and method for estimating a frequency offset in a wireless telecommunication system. The present invention does not estimate an initial frequency offset using a preamble which is the initial symbol of a frame upon estimation of the frequency offset in the wireless telecommunication system, but estimates a frequency offset using correlation of a cyclic prefix (CP) existing in each symbol, thereby eliminating a need to reproduce information about separate preamble signals and preamble signals, and easily estimating a frequency offset using only input signals.

Abstract translation: 本发明涉及一种用于估计无线电信系统中的频率偏移的装置和方法。 本发明不使用在无线电信系统中估计频率偏移后的帧的初始符号的前导码来估计初始频率偏移，而是使用每个中存在的循环前缀（CP）的相关性估计频率偏移 符号，从而不需要再现关于单独的前导信号和前导信号的信息，并且仅使用输入信号容易地估计频率偏移。

公开(公告)号：US08265024B2

公开(公告)日：2012-09-11

申请号：US12439475

申请日：2007-08-28

Applicant: Hyung-Joon Jeon

Inventor： Hyung-Joon Jeon

IPC: H04W72/04

CPC classification number: H04W72/1231 ,  H04W16/12 ,  H04W76/20

Abstract: A frequency reusing method in a wireless communication system including a coverage region, which has first, second and third regions, and a radio access station (RAS) transmitting a traffic to a portable subscriber station (PSS) in the coverage region, comprises (a) transmitting the traffics by assigning an identical frequency band to the first, second and third regions during a first interval; (b) transmitting the traffics by assigning the identical frequency band to the first region during a second interval; (c) transmitting the traffics by assigning the identical frequency band to the second region during a third interval; and (d) transmitting the traffics by assigning the identical frequency band to the third region during a fourth interval.

Abstract translation: 包括具有第一，第二和第三区域的覆盖区域和在覆盖区域中向便携式用户站（PSS）发送业务的无线电接入站（RAS））的无线通信系统中的频率重用方法包括（a ）通过在第一间隔期间向所述第一，第二和第三区域分配相同的频带来发送所述业务; （b）通过在第二间隔期间将相同的频带分配给第一区域来发送业务; （c）通过在第三间隔期间将相同的频带分配给第二区域来发送业务; 以及（d）通过在第四间隔期间将相同的频带分配给第三区域来发送业务。

公开(公告)号：US08170600B2

公开(公告)日：2012-05-01

申请号：US12439979

申请日：2007-09-18

Applicant: Kuk-Jin Song ,  Jae-Hyeong Kim

Inventor： Kuk-Jin Song ,  Jae-Hyeong Kim

IPC: H04B7/00

CPC classification number: H04W52/241 ,  H04W52/346

Abstract: A method and apparatus of allocating downlink power in a radio access station system are disclosed. The method of allocating transmission power to a plurality of terminals in a radio access station system according to the present invention includes (A-1) calculating an allocation power for the respective terminals based on downlink quality information of the respective terminals; (A-2) calculating a minimum requirement power for the respective terminals based on the downlink quality information; and (A-3) allocating the transmission power by distributing part of excess power of a first terminal group having the allocation power higher than the minimum requirement power to the second terminal group having the allocation power lower than the minimum requirement power, and the part of excess power is a sum of insufficient power of the second terminal group. As a result, the loss of the quantity of service transmission of the radio access station is reduced and service areas can be expanded.

Abstract translation: 公开了一种在无线电接入站系统中分配下行链路功率的方法和装置。 根据本发明的在无线电接入站系统中向多个终端分配发射功率的方法包括：（A-1）基于各个终端的下行链路质量信息计算各个终端的分配功率; （A-2）基于下行链路质量信息计算各个终端的最小要求功率; 以及（A-3）通过将具有高于最小要求功率的分配功率的第一终端组的剩余功率的一部分分配给具有低于最小要求功率的分配功率的第二终端组来分配发送功率， 的过剩功率是第二终端组的功率不足的总和。 结果，减少了无线接入站的业务传输量的损失，扩大了服务范围。