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    Method and system for transmitting and receiving data in a heterogeneous communication system
    3.
    发明申请
    Method and system for transmitting and receiving data in a heterogeneous communication system 有权
    用于在异构通信系统中发送和接收数据的方法和系统

    公开(公告)号：US20080219217A1

    公开(公告)日：2008-09-11

    申请号：US12074306

    申请日：2008-03-03

    Applicant: Do-Young Kim ,  Dong-Seek Park ,  Ho-Kyu Choi ,  Sung-Kwon Hong

    Inventor： Do-Young Kim ,  Dong-Seek Park ,  Ho-Kyu Choi ,  Sung-Kwon Hong

    IPC: H04Q7/00

    CPC classification number: H04W36/0066

    Abstract: A method and system for transmitting/receiving data in a heterogeneous communication system. A terminal accesses a first controller of a first communication system supporting a first communication service to make a communication path to the first communication system. After making the communication path to the terminal, the first controller determines whether it is possible to provide the first communication service to the terminal over the first communication system. If it is not possible, the first controller transmits to an interworking unit a first request indicating that the terminal requires the first communication service over the second communication system. The interworking unit transmits a second request to a second controller of the second communication system in response to the first request, the second request indicating that the second controller provides the first communication service to the terminal. Upon receiving a response to the second request, the interworking unit controls the first controller to provide the first communication service to the terminal over the second communication system according to the response.

    Abstract translation: 一种用于在异构通信系统中发送/接收数据的方法和系统。 终端访问支持第一通信服务的第一通信系统的第一控制器，以建立到第一通信系统的通信路径。 在向终端发送通信路径之后，第一控制器确定是否可以通过第一通信系统向终端提供第一通信服务。 如果不可能，则第一控制器向交互单元发送指示终端在第二通信系统上需要第一通信服务的第一请求。 交互单元响应于第一请求向第二通信系统的第二控制器发送第二请求，第二请求指示第二控制器向终端提供第一通信服务。 在接收到对第二请求的响应时，交互单元控制第一控制器，以根据响应通过第二通信系统向终端提供第一通信服务。

    Apparatus and method for selecting relay mode of relay station in multihop relay broadband wireless communication system
    4.
    发明申请
    Apparatus and method for selecting relay mode of relay station in multihop relay broadband wireless communication system 有权
    在多跳中继宽带无线通信系统中选择中继站中继模式的装置和方法

    公开(公告)号：US20070190934A1

    公开(公告)日：2007-08-16

    申请号：US11657415

    申请日：2007-01-24

    Applicant: Do-Young Kim ,  Hak-Ju Lee ,  Dong-Seek Park ,  Sung-Kwon Hong ,  Seung-Hoon Park

    Inventor： Do-Young Kim ,  Hak-Ju Lee ,  Dong-Seek Park ,  Sung-Kwon Hong ,  Seung-Hoon Park

    IPC: H04B3/36

    CPC classification number: H04B7/15557

    Abstract: A method for selecting a relay mode depending on channel status of relay links in a multihop relay broadband wireless communication system and a Relay Station (RS) apparatus for supporting the method. When signals are received from a Base Station (BS) and a Mobile Station (MS), channel status values (e.g., eigenvalue, mutual information, and probability error) of relay links (BS-RS link and RS-MS link) are estimated using the received signals. The estimated channel status values are compared with a preset reference value. According to a result of the comparison, the relay mode for relaying the received signals is selected. Accordingly, the reliability of the relayed signal can be enhanced and the capacity of the signal link can be increased.

    Abstract translation: 根据多跳中继宽带无线通信系统中的中继链路的信道状态和用于支持该方法的中继站（RS）装置，选择中继模式的方法。 当从基站（BS）和移动台（MS）接收到信号时，估计中继链路（BS-RS链路和RS-MS链路）的信道状态值（例如特征值，互信息和概率误差） 使用接收到的信号。 将估计的通道状态值与预设的参考值进行比较。 根据比较的结果，选择用于中继接收信号的中继模式。 因此，可以提高中继信号的可靠性，并且可以提高信号链路的容量。

    Apparatus and method for controlling transmission/reception power by measuring propagation delay and processing time in a wireless communication system
    5.
    发明申请
    Apparatus and method for controlling transmission/reception power by measuring propagation delay and processing time in a wireless communication system 审中-公开
    通过测量无线通信系统中的传播延迟和处理时间来控制发射/接收功率的装置和方法

    公开(公告)号：US20070097900A1

    公开(公告)日：2007-05-03

    申请号：US11588433

    申请日：2006-10-27

    Applicant: Do-Young Kim ,  Sung-Kwon Hong ,  Young-Kwon Cho ,  Eun-Taek Lim ,  Dong-Seek Park ,  Marcos Katz

    Inventor： Do-Young Kim ,  Sung-Kwon Hong ,  Young-Kwon Cho ,  Eun-Taek Lim ,  Dong-Seek Park ,  Marcos Katz

    IPC: H04B7/185

    CPC classification number: H04W52/46 ,  H04W52/226 ,  H04W52/283

    Abstract: An apparatus and method for controlling power in a multi-hop relay broadband wireless communication system are provided. A BS sends a signal to an RS and an MS to estimate distances between the BS, the RS and the MS. Upon receipt of signals from the RS and the MS, the BS measures ToAs of the received signals and detects time information included in the received signals, and calculates propagation delays between the BS, the RS and the MS based on the ToAs and the time information. The BS estimates the distances between the BS, the RS and the MS using the propagation delays, and controls transmission power according to the estimated distances.

    Abstract translation: 提供了一种用于控制多跳中继宽带无线通信系统中的功率的装置和方法。 BS向RS和MS发送信号以估计BS，RS和MS之间的距离。 在接收到来自RS和MS的信号时，BS测量接收到的信号的ToAs并且检测包括在接收信号中的时间信息，并且基于ToAs和时间信息来计算BS，RS和MS之间的传播延迟 。 BS使用传播延迟估计BS，RS和MS之间的距离，并且根据估计的距离来控制发射功率。

    Apparatus and method for data transmission by constellation combination in a communication system
    8.
    发明申请
    Apparatus and method for data transmission by constellation combination in a communication system 审中-公开
    在通信系统中通过星座组合进行数据传输的装置和方法

    公开(公告)号：US20060120481A1

    公开(公告)日：2006-06-08

    申请号：US11295065

    申请日：2005-12-06

    Applicant: Sung-Kwon Hong ,  Seung-Hoon Park ,  Dong-Seek Park ,  Young-Kwon Cho

    Inventor： Sung-Kwon Hong ,  Seung-Hoon Park ,  Dong-Seek Park ,  Young-Kwon Cho

    IPC: H04L27/36

    CPC classification number: H04L1/0003 ,  H04L1/0009 ,  H04L1/0059 ,  H04L1/0071

    Abstract: Disclosed are an apparatus and a method for efficiently transmitting data by constellation combination in a communication system. The method includes encoding and interleaving transmission data according to a predetermined encoding scheme, and dividing an interleaved signal into at least one signal interval corresponding to at least one modulation scheme; and transmitting data obtained by modulating at least one divided signal interval according to a modulation scheme corresponding to the divided signal interval, the data satisfying a predetermined data rate setup in a system by applying a preset modulation scheme to each divided signal interval.

    Abstract translation: 公开了一种在通信系统中通过星座组合有效地发送数据的装置和方法。 该方法包括根据预定的编码方案对发送数据进行编码和交织，并且将交织的信号划分为与至少一个调制方案对应的至少一个信号间隔; 以及通过对每个划分的信号间隔应用预设的调制方案，发送通过根据对应于划分的信号间隔的调制方案调制至少一个划分的信号间隔获得的数据，所述数据满足系统中的预定数据速率设置。

    Method and system of orthogonalizing signal transmitted from BS applied to OFDM access
    10.
    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

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

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

    IPC: H04L27/28

    CPC classification number: H04L5/023 ,  H04L27/2602 ,  H04L27/2626 ,  H04L27/2647

    Abstract: 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.

    Abstract translation: 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。

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