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    APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING SIGNAL IN A COMMUNICATION SYSTEM
    85.
    发明申请
    APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING SIGNAL IN A COMMUNICATION SYSTEM 有权
    用于在通信系统中发送/接收信号的装置和方法

    公开(公告)号：US20070283216A1

    公开(公告)日：2007-12-06

    申请号：US11751339

    申请日：2007-05-21

    申请人： Gyu-Bum Kyung ,  Seung-Hoon Choi ,  Hong-Sil Jeong ,  Dong-Seek Park ,  Jae-Yoel Kim ,  Sung-Eun Park ,  Hyun-Koo Yang ,  Kyeong-Cheol Yang

    发明人： Gyu-Bum Kyung ,  Seung-Hoon Choi ,  Hong-Sil Jeong ,  Dong-Seek Park ,  Jae-Yoel Kim ,  Sung-Eun Park ,  Hyun-Koo Yang ,  Kyeong-Cheol Yang

    IPC分类号： H03M13/00

    CPC分类号： H03M13/11 ,  H03M13/255 ,  H03M13/27

    摘要： A signal transmission apparatus in a communication system is disclosed. A channel interleaver generates an interleaved vector by channel-interleaving a Low Density Parity Check (LDPC) codeword according to a channel interleaving rule, and a modulator generates a modulation symbol by modulating the interleaved vector according to a modulation scheme. The channel interleaving rule is one of a first channel interleaving rule and a second channel interleaving rule. The first channel interleaving rule is a rule for setting degree distribution for nodes in a factor graph of the LDPC codeword separately for individual levels supported by the modulation scheme. The second channel interleaving rule is a rule for allowing coded bits included in the LDPC codeword to be interleaved according to an unequal error characteristic of the modulation scheme.

    摘要翻译： 公开了一种通信系统中的信号发送装置。 信道交织器根据信道交织规则通过对低密度奇偶校验（LDPC）码字进行信道交织来生成交错矢量，并且调制器通过根据调制方式调制交织向量来产生调制符号。 信道交织规则是第一信道交织规则和第二信道交织规则之一。 第一信道交织规则是用于针对由调制方案支持的各个级别分别设置LDPC码字的因子图中的节点的度数分布的规则。 第二信道交织规则是用于允许根据调制方案的不等错误特性来交织包含在LDPC码字中的编码比特的规则。

    Apparatus and method for transmitting/receiving pilot code pattern for identification of base station in communication system using orthogonal frequency division multiplexing scheme
    88.
    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 initial access in wireless communication system with hierarchical cell structure
    89.
    发明授权
    Apparatus and method for initial access in wireless communication system with hierarchical cell structure 有权
    具有分层小区结构的无线通信系统初始接入的装置和方法

    公开(公告)号：US09100901B2

    公开(公告)日：2015-08-04

    申请号：US13399766

    申请日：2012-02-17

    申请人： Su-Ryong Jeong ,  Seung-Hoon Choi

    发明人： Su-Ryong Jeong ,  Seung-Hoon Choi

    IPC分类号： H04W48/16 ,  H04W84/04

    CPC分类号： H04W48/16 ,  H04W84/045

    摘要： An initial access procedure in a wireless communication of a hierarchical cell structure includes operations of a mobile station (MS). The operations of the MS include transmitting an initial access message; obtaining information of a small cell Base Station (BS) which receives the initial access message, from a response message received from a macro BS; attempting to decode a reference channel transmitted by the small cell BS; and when successfully decoding the reference channel, setting a downlink channel with the small cell BS.

    摘要翻译： 分级小区结构的无线通信中的初始接入过程包括移动台（MS）的操作。 MS的操作包括发送初始接入消息; 从从宏BS接收到的响应消息中获取接收到初始接入消息的小小区基站（BS）的信息; 尝试对由小小区BS发送的参考信道进行解码; 并且当成功解码参考信道时，设置与小小区BS的下行链路信道。

    Method and apparatus for supporting handover in heterogeneous network
    90.
    发明授权
    Method and apparatus for supporting handover in heterogeneous network 失效
    支持异构网络切换的方法和装置

    公开(公告)号：US08543115B2

    公开(公告)日：2013-09-24

    申请号：US13353613

    申请日：2012-01-19

    申请人： Su-Ryong Jeong ,  Seung-Hoon Choi ,  Sung-Eun Park ,  Tae-Young Kim

    发明人： Su-Ryong Jeong ,  Seung-Hoon Choi ,  Sung-Eun Park ,  Tae-Young Kim

    IPC分类号： H04W36/00

    CPC分类号： H04W36/30 ,  H04W36/04 ,  H04W36/14

    摘要： A method for operating a terminal for supporting a handover in a heterogeneous network is provided. The method includes measuring received signal strength from a target small base station, so that a Signal-to-Noise Ratio (SNR) is estimated, when the SNR of the target small base station that considers a biased value for range expansion is greater than an SNR of a serving macro base station, determining whether an SNR of the target small base station that does not consider the biased value for the range expansion is equal to or less than a threshold, and when the SNR of the target small base station that does not consider the biased value for the range expansion is equal to or less than the threshold, transmitting indication information, informing that a low SNR is expected when the terminal performs a handover to the target small base station, to the serving macro base station.

    摘要翻译： 提供了一种用于操作终端以支持异构网络中的切换的方法。 该方法包括测量来自目标小型基站的接收信号强度，从而当考虑范围扩展的偏置值的目标小型基站的SNR大于一个时，估计信噪比（SNR） SNR，确定目标小型基站的SNR不考虑用于范围扩展的偏置值的SNR是否等于或小于阈值，以及当目标小型基站的SNR是否为 不考虑范围扩展的偏置值等于或小于阈值，发送指示信息，通知在终端执行向目标小型基站的切换时预期低SNR到服务宏基站。