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    Apparatus and method for supporting automatic repeat request in a high-speed wireless packet data communication system
    92.
    发明授权
    Apparatus and method for supporting automatic repeat request in a high-speed wireless packet data communication system 有权
    在高速无线分组数据通信系统中支持自动重复请求的装置和方法

    公开(公告)号：US07447968B2

    公开(公告)日：2008-11-04

    申请号：US10421818

    申请日：2003-04-24

    申请人： Sang-Hyuck Ha ,  Min-Goo Kim ,  Jin-Woo Heo ,  Young-Kwon Cho ,  Sang-Min Bae

    发明人： Sang-Hyuck Ha ,  Min-Goo Kim ,  Jin-Woo Heo ,  Young-Kwon Cho ,  Sang-Min Bae

    IPC分类号： G08C25/02 ,  H04L1/18

    CPC分类号： H04L1/0071 ,  H04L1/0003 ,  H04L1/1692 ,  H04L1/1809 ,  H04L1/1819

    摘要： Disclosed is an apparatus and method for supporting automatic repeat request (ARQ) in a high-speed wireless packet data communication system. A mobile station receives control information including a subpacket identifier (SP_ID) representing the sequence of a subpacket, the size of an encoder packet (EP_SIZE), and a sequence identifier (AI_SN) that is toggled each time a new encoder packet is transmitted, while receiving one of a plurality of subpackets generated by segmenting a bit stream acquired by encoding a transmission encoder packet. The mobile station determines whether it will perform a decoding process caused by initial transmission or a decoding process caused by retransmission on the received subpacket, based on the control information.

    摘要翻译： 公开了一种用于在高速无线分组数据通信系统中支持自动重发请求（ARQ）的装置和方法。 移动站接收控制信息，该控制信息包括表示子分组序列的子分组标识符（SP_ID），编码器分组的大小（EP_SIZE）以及每次发送新的编码器分组时切换的序列标识符（AI_SN），同时 接收通过分割通过对发送编码器分组进行编码而获取的比特流而生成的多个子分组中的一个。 基于控制信息，移动台确定是否将由初次发送引起的解码处理或由接收的子分组上的重传引起的解码处理。

    Apparatus and method for transmitting/receiving pilot pattern set to distinguish base station in orthogonal frequency division multiplexing (OFDM) communication system
    94.
    发明授权
    Apparatus and method for transmitting/receiving pilot pattern set to distinguish base station in orthogonal frequency division multiplexing (OFDM) communication system 失效
    用于在正交频分复用（OFDM）通信系统中发送/接收导频模式集以区分基站的装置和方法

    公开(公告)号：US07436758B2

    公开(公告)日：2008-10-14

    申请号：US10974413

    申请日：2004-10-27

    申请人： Chang-Ho Suh ,  Jung-Min Ro ,  Seok-Hyun Yoon ,  Young-Kwon Cho

    发明人： Chang-Ho Suh ,  Jung-Min Ro ,  Seok-Hyun Yoon ,  Young-Kwon Cho

    IPC分类号： H04J11/00 ,  H04Q7/20

    CPC分类号： H04L5/026 ,  H04L27/261

    摘要： An apparatus and method for transmitting/receiving a pilot pattern set to distinguish a base station in an FDM communication system. The method divides a total frequency bandwidth into at least two sub-bandwidths including a plurality of sub-carriers in an OFDMA (Orthogonal Frequency Division Multiple Access) mobile communication system, configures a single frame cell (FC) using one sub-bandwidth from among the sub-bandwidths and a plurality of OFDM (Orthogonal Frequency Division Multiplexing) symbol intervals, and assigns a pilot signal to a time-frequency cell comprised of at least one OFDM symbol and at least one sub-carrier within the FC. The method includes the steps of spreading a pilot signal and a data signal using different orthogonal codes, synthesizing the spread pilot and data signals, and performing a CDM (Code Division Multiplexing) process; and mapping the CDM-processed pilot and data signals to a predetermined time-frequency cell in the FC.

    摘要翻译： 一种用于发送/接收导频模式集合以区分FDM通信系统中的基站的装置和方法。 该方法在OFDMA（正交频分多址）移动通信系统中将总频带宽划分成包括多个子载波的至少两个子带宽，使用一个子带宽从 子带宽和多个OFDM（正交频分复用）符号间隔，并且将导频信号分配给由FC内的至少一个OFDM符号和至少一个子载波组成的时间单元。 该方法包括以下步骤：使用不同的正交码扩展导频信号和数据信号，合成扩频导频和数据信号，并执行CDM（码分复用）处理; 以及将经CDM处理的导频和数据信号映射到FC中的预定时间频率小区。

    Apparatus and method for transmitting/receiving pilot code pattern for identification of base station in communication system using orthogonal frequency division multiplexing scheme
    96.
    发明申请
    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：US20050226141A1

    公开(公告)日：2005-10-13

    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 ,  H04J13/00 ,  H04L27/26

    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 supporting mobility of a mobile terminal that performs visible light communication
    98.
    发明授权
    Apparatus and method for supporting mobility of a mobile terminal that performs visible light communication 有权
    用于支持执行可见光通信的移动终端的移动性的装置和方法

    公开(公告)号：US08792790B2

    公开(公告)日：2014-07-29

    申请号：US13233736

    申请日：2011-09-15

    申请人： Jae-Seung Son ,  Do-Young Kim ,  Eun-Tae Won ,  Tae-Han Bae ,  Young-Kwon Cho ,  Sun-Gi Gu

    发明人： Jae-Seung Son ,  Do-Young Kim ,  Eun-Tae Won ,  Tae-Han Bae ,  Young-Kwon Cho ,  Sun-Gi Gu

    IPC分类号： H04B10/00 ,  H04B10/116 ,  H04B10/114

    CPC分类号： H04B10/116 ,  H04B10/1149

    摘要： A method and apparatus for supporting mobility of a mobile terminal in a Visible Light Communication (VLC) system. The method includes searching, by the VLC device, for a first mobile terminal in a plurality of cells; locating the first mobile terminal in a first cell among the plurality of cells; exchanging data with the first mobile using a light source of the first cell; determining whether a response signal corresponding to data reception is received from the first mobile terminal in the first cell; searching for the first mobile terminal in a neighboring cell of the first cell, if the response signal is not received; and determining the neighboring cell as a second cell for visible light activation, if the first mobile terminal is located in the neighboring cell.

    摘要翻译： 一种用于支持可见光通信（VLC）系统中的移动终端的移动性的方法和装置。 该方法包括：通过VLC设备搜索多个小区中的第一移动终端; 将所述第一移动终端定位在所述多个小区中的第一小区中; 使用第一小区的光源与第一移动台交换数据; 确定是否从所述第一小区中的所述第一移动终端接收到对应于数据接收的响应信号; 如果没有接收到响应信号，则在第一小区的相邻小区中搜索第一移动终端; 以及如果所述第一移动终端位于所述相邻小区中，则将所述相邻小区确定为用于可见光激活的第二小区。

    Visible light communication method and apparatus
    99.
    发明授权
    Visible light communication method and apparatus 有权
    可见光通讯方法及装置

    公开(公告)号：US08428469B2

    公开(公告)日：2013-04-23

    申请号：US12915810

    申请日：2010-10-29

    申请人： Do-Young Kim ,  Eun-Tae Won ,  Young-Kwon Cho ,  Tae-Han Bae ,  Sun-Gi Gu ,  Jae-Seung Son

    发明人： Do-Young Kim ,  Eun-Tae Won ,  Young-Kwon Cho ,  Tae-Han Bae ,  Sun-Gi Gu ,  Jae-Seung Son

    IPC分类号： H04B10/00

    CPC分类号： H04B10/116 ,  H04W16/28 ,  H04W72/048

    摘要： A method and an apparatus are provided for guaranteeing terminal mobility in a time division visible light communication system. In resource assignment in a position where the visible light communication terminal changes a cell, the terminal is assigned a resource to be used in a next cell in a cell boundary area from a communication coordinator, thereby guaranteeing the continuous mobility. The visible light communication system informs the terminal of cell boundary notice information for easily informing the terminal of the cell definition so that the terminal can recognize that the terminal is currently located in the cell boundary and is necessary to change the resource.

    摘要翻译： 提供了一种用于在时分可见光通信系统中保证终端移动性的方法和装置。 在可见光通信终端改变单元的位置的资源分配中，从通信协调器向终端分配要在小区边界区域中的下一个小区中使用的资源，从而保证连续的移动性。 可见光通信系统向终端通知小区边界通知信息，以便容易地向终端通知小区定义，使得终端能够识别出终端当前位于小区边界并且需要改变资源。

    APPARATUS AND METHOD FOR SUPPORTING MOBILITY OF A MOBILE TERMINAL THAT PERFORMS VISIBLE LIGHT COMMUNICATION
    100.
    发明申请
    APPARATUS AND METHOD FOR SUPPORTING MOBILITY OF A MOBILE TERMINAL THAT PERFORMS VISIBLE LIGHT COMMUNICATION 有权
    支持可视光通信的移动终端的移动性的装置和方法

    公开(公告)号：US20120008959A1

    公开(公告)日：2012-01-12

    申请号：US13233736

    申请日：2011-09-15

    申请人： Jae-Seung SON ,  Do-Young Kim ,  Eun-Tae Won ,  Tae-Han Bae ,  Young-Kwon Cho ,  Sun-Gi Gu

    发明人： Jae-Seung SON ,  Do-Young Kim ,  Eun-Tae Won ,  Tae-Han Bae ,  Young-Kwon Cho ,  Sun-Gi Gu

    IPC分类号： H04B10/00 ,  H04J14/08

    CPC分类号： H04B10/116 ,  H04B10/1149

    摘要： A method and apparatus for supporting mobility of a mobile terminal in a Visible Light Communication (VLC) system. The method includes searching, by the VLC device, for a first mobile terminal in a plurality of cells; locating the first mobile terminal in a first cell among the plurality of cells; exchanging data with the first mobile using a light source of the first cell; determining whether a response signal corresponding to data reception is received from the first mobile terminal in the first cell; searching for the first mobile terminal in a neighboring cell of the first cell, if the response signal is not received; and determining the neighboring cell as a second cell for visible light activation, if the first mobile terminal is located in the neighboring cell.

    摘要翻译： 一种用于支持可见光通信（VLC）系统中的移动终端的移动性的方法和装置。 该方法包括：通过VLC设备搜索多个小区中的第一移动终端; 将所述第一移动终端定位在所述多个小区中的第一小区中; 使用第一小区的光源与第一移动台交换数据; 确定是否从所述第一小区中的所述第一移动终端接收到对应于数据接收的响应信号; 如果没有接收到响应信号，则在第一小区的相邻小区中搜索第一移动终端; 以及如果所述第一移动终端位于所述相邻小区中，则将所述相邻小区确定为用于可见光激活的第二小区。