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    Apparatus and method for transmitting/receiving pilot code pattern for identification of base station in communication system using orthogonal frequency division multiplexing scheme
    51.
    发明授权
    Apparatus and method for transmitting/receiving pilot code pattern for identification of base station in communication system using orthogonal frequency division multiplexing scheme 有权
    用于使用正交频分复用方案在通信系统中发送/接收用于识别基站的导频码模式的装置和方法

    公开(公告)号：US07751304B2

    公开(公告)日：2010-07-06

    申请号：US11101847

    申请日：2005-04-08

    申请人： Jung-Min Ro ,  Seok-Hyun Yoon ,  Young-Kwon Cho ,  Seung-Hoon Choi ,  Chang-Ho Suh ,  Su-Ryong Jeong

    发明人： Jung-Min Ro ,  Seok-Hyun Yoon ,  Young-Kwon Cho ,  Seung-Hoon Choi ,  Chang-Ho Suh ,  Su-Ryong Jeong

    IPC分类号： H04J11/00 ,  H04W72/00

    CPC分类号： H04L5/0048 ,  H04B1/69 ,  H04J13/00 ,  H04J13/0074 ,  H04J13/16 ,  H04L5/0016 ,  H04L25/0226 ,  H04L25/03866 ,  H04L27/2613

    摘要： Provided are an apparatus and method for transmitting/receiving a pilot code pattern used to identify a base station. In the base station, a pilot code pattern determiner determines a code set that includes a number of spreading codes based on a specific ID of the base station. A first spreader spreads a pilot symbol mapped onto an FC with a corresponding spreading code according to the determined code set, and controls gain so as to transmit the pilot symbol at a higher signal level than data. A second spreader spreads data symbols mapped onto the FC with spreading codes of the code set except for the spreading code used for the pilot spreading. A mapper groups a spread signal from the first spreader and spread signals from the second spreader on a TFC basis, and outputs signals that constitute each TFC to points of sub-carriers. An IFFT unit performs an IFFT operation on signals output from the mapper. Because the pilot as well as the data is spread, it is easy to implement the base station. Also, it is possible to identify base stations according to the pilot spreading codes as well as a pilot hopping pattern.

    摘要翻译： 提供了一种用于发送/接收用于识别基站的导频码模式的装置和方法。 在基站中，导频码模式确定器基于基站的特定ID确定包括多个扩展码的码集。 第一扩展器根据确定的代码集，将具有相应扩展码的映射到FC的导频符号扩展，并且控制增益以便以比数据更高的信号电平发送导频符号。 第二扩展器将除了用于导频扩展的扩展码之外的码集的扩展码扩展到映射到FC的数据符号。 映射器将来自第一扩展器的扩展信号和基于TFC的第二扩展器的扩展信号分组，并将构成每个TFC的信号输出到子载波的点。 IFFT单元对从映射器输出的信号执行IFFT操作。 由于飞行员以及数据的传播，基站很容易实现。 此外，可以根据导频扩展码以及导频跳频模式来识别基站。

    Apparatus and method for switching between an AMC mode and a diversity mode in a broadband wireless communication system
    52.
    发明授权
    Apparatus and method for switching between an AMC mode and a diversity mode in a broadband wireless communication system 有权
    用于在宽带无线通信系统中在AMC模式和分集模式之间切换的装置和方法

    公开(公告)号：US07526035B2

    公开(公告)日：2009-04-28

    申请号：US11098679

    申请日：2005-04-04

    申请人： Chang-Ho Suh ,  Young-Kwon Cho ,  Su-Ryong Jeong ,  Seok-Hyun Yoon

    发明人： Chang-Ho Suh ,  Young-Kwon Cho ,  Su-Ryong Jeong ,  Seok-Hyun Yoon

    IPC分类号： H04K1/10

    CPC分类号： H04L1/0001 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/02 ,  H04L25/02

    摘要： An apparatus and method for switching between an AMC mode and a diversity mode adaptively according to a channel environment in a broadband wireless communication system are provided. According to the present invention, a transmitter (a base station) determines a transmission mode according to frequency-domain and time-domain channel measurement information received from a receiver (a mobile station). If the transmission mode is the AMC mode, the transmitter selects a coding and modulation scheme according to a frequency-domain CQI received from the receiver. If the transmission mode is a diversity mode, the transmitter selects a predetermined coding and modulation scheme.

    摘要翻译： 提供了一种根据宽带无线通信系统中的信道环境自适应地切换AMC模式和分集模式的装置和方法。 根据本发明，发射机（基站）根据从接收机（移动台）接收的频域和时域信道测量信息确定传输模式。 如果传输模式是AMC模式，则发射机根据从接收机接收的频域CQI来选择编码和调制方案。 如果传输模式是分集模式，则发射机选择预定的编码和调制方案。

    Method and system of orthogonalizing signal transmitted from BS applied to OFDM access
    54.
    发明申请
    Method and system of orthogonalizing signal transmitted from BS applied to OFDM access 审中-公开
    将从BS发送的信号正交化的方法和系统应用于OFDM接入

    公开(公告)号：US20070258529A1

    公开(公告)日：2007-11-08

    申请号：US11789673

    申请日：2007-04-25

    申请人： Zongchuang Liang ,  Dong-Seek Park ,  Chang-Yoon Oh ,  Young-Kwon Cho ,  Sung-Kwon Hong

    发明人： Zongchuang Liang ,  Dong-Seek Park ,  Chang-Yoon Oh ,  Young-Kwon Cho ,  Sung-Kwon Hong

    IPC分类号： H04L27/28

    CPC分类号： H04L5/023 ,  H04L27/2602 ,  H04L27/2626 ,  H04L27/2647

    摘要： A method of orthogonalizing signals transmitted from a BS in an OFDMA system, at a transmitting end, includes a) performing encoding, interleaving and modulation on original information bits; b) allocating sub-carriers with equivalent intervals to a sub-channel, and dividing channels into two parts of a cell edge user channel and a center area channel; c) mapping modulated information symbols to the corresponding sub-carriers; d) performing orthogonalizing processing on the two parts of channels; e) for a user at an edge of the cell, according to result of step b), dividing an OFDM symbol into subsections of equal length; f) multiplying the subsections obtained from step e) by a corresponding orthogonalizing sequence of the cell; g) adding the OFDM symbols of the two parts together to form a whole OFDM symbol; h) adding a cyclic prefix for the system; and i) performing D/A conversion, RF processing and feedback over a transmitting antenna on a base-band signal.

    摘要翻译： 一种在发送端正交化从OFDMA系统发送的信号的方法包括：a）对原始信息比特执行编码，交织和调制; b）向子信道分配具有等效间隔的子载波，并将信道划分为小区边缘用户信道和中心区域信道的两部分; c）将调制信息符号映射到相应的子载波; d）对信道的两部分执行正交化处理; e）根据步骤b）的结果，针对小区边缘的用户，将OFDM符号划分成等长的子段; f）将从步骤e）获得的子段乘以单元的对应正交化序列; g）将两个部分的OFDM符号相加在一起以形成整个OFDM符号; h）为系统添加循环前缀; 以及i）在基带信号上通过发送天线执行D / A转换，RF处理和反馈。

    Apparatus and method for controlling call admission in an orthogonal frequency division multiplexing mobile communication system
    57.
    发明申请
    Apparatus and method for controlling call admission in an orthogonal frequency division multiplexing mobile communication system 审中-公开
    用于在正交频分复用移动通信系统中控制呼叫准入的装置和方法

    公开(公告)号：US20070105563A1

    公开(公告)日：2007-05-10

    申请号：US11585466

    申请日：2006-10-24

    申请人： Jung-Min Ro ,  Eun-Taek Lim ,  Young-Bin Chang ,  Jae-Hyuk Jang ,  Dong-Seek Park ,  Young-Kwon Cho ,  Joon-Young Choi

    发明人： Jung-Min Ro ,  Eun-Taek Lim ,  Young-Bin Chang ,  Jae-Hyuk Jang ,  Dong-Seek Park ,  Young-Kwon Cho ,  Joon-Young Choi

    IPC分类号： H04Q7/20

    CPC分类号： H04W28/24

    摘要： A method and an apparatus for controlling call admission in an OFDM mobile communication system are provided. Upon receipt of a call admission request, it is determined whether a requested call is a handoff call or a new call and the traffic service type and QoS level of the requested call are determined. The amount of resources required for the call is calculated using the QoS level and the amount of resources of on-going calls is calculated according to the traffic service type. The amount of available resources in a cell is calculated using the amount of resources of the on-going calls and it is determined whether to admit the call by comparing the available resource amount with the required resource amount.

    摘要翻译： 提供了一种在OFDM移动通信系统中控制呼叫准入的方法和装置。 在接收到呼叫许可请求时，确定所请求的呼叫是切换呼叫还是新呼叫，并且确定所请求呼叫的业务服务类型和QoS等级。 使用QoS级别计算呼叫所需的资源量，并根据流量服务类型计算正在进行的呼叫的资源量。 使用正在进行的呼叫的资源量来计算小区中的可用资源量，并且通过将可用资源量与所需资源量进行比较来确定是否允许该呼叫。

    Apparatus and method for transmitting data using relay station in a broadband wireless communication system
    58.
    发明申请
    Apparatus and method for transmitting data using relay station in a broadband wireless communication system 失效
    在宽带无线通信系统中使用中继站发送数据的装置和方法

    公开(公告)号：US20070081603A1

    公开(公告)日：2007-04-12

    申请号：US11528169

    申请日：2006-09-27

    申请人： Jae-Hyuk Jang ,  Eun-Taek Lim ,  Young-Bin Chang ,  Jung-Min Ro ,  Tae-Young Kim ,  Dong-Seek Park ,  Young-Kwon Cho ,  Joon-Young Choi

    发明人： Jae-Hyuk Jang ,  Eun-Taek Lim ,  Young-Bin Chang ,  Jung-Min Ro ,  Tae-Young Kim ,  Dong-Seek Park ,  Young-Kwon Cho ,  Joon-Young Choi

    IPC分类号： H04K1/10

    CPC分类号： H04B7/15521 ,  H04B7/2606 ,  H04L27/2602

    摘要： A frame configuration method and apparatus for sending data via an RS in a broadband wireless communication system are provided. In the reception mode, the RS monitors reception of data in an (n−1)th frame from an MS and reception of data in an nth frame from a BS. The RS classifies the data received from the MS and the data received from the BS as combinable data to be sent in combination or as non-combinable data to be sent separately, and stores the classified data distinguishably. When the RS transitions to a transmission mode, it determines whether to XOR-operate or mask the stored data. If the stored data can be masked, the RS XOR-operates the stored data and sends the masked data to the BS and the MS.

    摘要翻译： 提供一种用于在宽带无线通信系统中通过RS发送数据的帧配置方法和装置。 在接收模式中，RS监视来自MS的第（n-1）帧中的数据的接收和来自BS的第n帧的数据的接收。 RS将从MS接收到的数据和从BS接收到的数据作为可组合数据组合或作为不可组合数据单独发送，并且可区分地存储分类数据。 当RS转换到传输模式时，它确定是否异或操作或掩蔽存储的数据。 如果存储的数据可以被屏蔽，则RS XOR操作存储的数据，并将掩蔽的数据发送到BS和MS。

    System and method for transmitting/receiving signal in a frequency overlay communication system
    59.
    发明申请
    System and method for transmitting/receiving signal in a frequency overlay communication system 有权
    在频率覆盖通信系统中发送/接收信号的系统和方法

    公开(公告)号：US20070076817A1

    公开(公告)日：2007-04-05

    申请号：US11477247

    申请日：2006-06-29

    申请人： Chang-Ho Suh ,  Dong-Seek Park ,  Young-Kwon Cho ,  Eun-Taek Lim ,  Jin-Kyu Koo ,  Jung-Soo Woo

    发明人： Chang-Ho Suh ,  Dong-Seek Park ,  Young-Kwon Cho ,  Eun-Taek Lim ,  Jin-Kyu Koo ,  Jung-Soo Woo

    IPC分类号： H04L27/12

    CPC分类号： H04L27/265 ,  H04L27/2634

    摘要： A method for transmitting a signal by a transmitter in a frequency overlay communication system. The method includes generating y first signal groups by shuffling input information data with a length yN on an N-by-N grouping basis according to a first shuffling scheme; generating y second signal groups by performing N-point IFFT on each of the first signal groups; generating y third signal groups by multiplying each of the second signal groups by preset values; generating N fourth signal groups by de-shuffling the third signal groups on a y-by-y grouping basis according to a de-shuffling scheme; generating N fifth signal groups by performing y-point IDFT on each of the fourth signal groups; generating y sixth signal groups by shuffling the fifth signal groups according to a second shuffling scheme, and serial-converting the sixth signal groups; and performing a transmission RF process on the serial-converted signal and transmitting the RF-processed signal to a receiver.

    摘要翻译： 一种用于在频率覆盖通信系统中由发射机发送信号的方法。 该方法包括：根据第一混洗方案，以N×N分组为基础，以长度为yN的输入信息数据进行混洗，生成y个第一信号组; 通过对每个第一信号组执行N点IFFT来产生y个第二信号组; 通过将每个第二信号组乘以预设值来产生y个第三信号组; 根据去混洗方案，以y-y分组为基础对第三信号组进行去混洗，生成N个第四信号组; 通过对每个第四信号组执行y点IDFT来产生N个第五信号组; 通过根据第二混洗方案混洗第五信号组来产生y个第六信号组，并串行转换第六信号组; 对串行转换信号执行发送RF处理，并将RF处理的信号发送到接收机。