利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

224 条记录 (耗时 0.033 秒)

    Adaptive data multiplexing method in OFDMA system and transmission/reception apparatus thereof
    122.
    发明申请
    Adaptive data multiplexing method in OFDMA system and transmission/reception apparatus thereof 有权
    OFDMA系统中的自适应数据复用方法及其发送/接收装置

    公开(公告)号：US20070064664A1

    公开(公告)日：2007-03-22

    申请号：US11417218

    申请日：2006-05-04

    申请人： Hwan-Joon Kwon ,  Joon-Young Cho ,  Yun-Ok Cho ,  Ju-Ho Lee ,  Dong-Hee Kim ,  Jin-Kyu Han ,  Achim Seebens ,  Peter Jung ,  Tobias Scholand

    发明人： Hwan-Joon Kwon ,  Joon-Young Cho ,  Yun-Ok Cho ,  Ju-Ho Lee ,  Dong-Hee Kim ,  Jin-Kyu Han ,  Achim Seebens ,  Peter Jung ,  Tobias Scholand

    IPC分类号： H04J1/00

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

    摘要： A transmission/reception method and apparatus in an Orthogonal Frequency Division Multiplexing (OFDM)-based wireless communication system are provided, in which a data transmitter adaptively selects a multiplexing scheme according to a code rate of the transmission packet or an effective SNR of a wireless channel for a corresponding terminal, when transmitting a packet data channel. The adaptive multiplexing scheme is equal in concept to a scheme of adaptively implementing unitary precoding. The unitary precoded multiplexing includes Orthogonal Frequency code Domain Multiplexing (OFCDM), Fast Fourier Transform-Spread-OFDM (FFT-S-OFDM), Fast Frequency Hopping-OFDM (FFH-OFDM), and the like. The method and apparatus adaptively selects the multiplexing scheme and transmits/receives data using the selected multiplexing scheme, thereby improving reception performance of the packet data.

    摘要翻译： 提供了一种基于正交频分复用（OFDM）的无线通信系统中的发送/接收方法和装置，其中数据发射机根据传输分组的码率或无线的有效SNR自适应地选择复用方案 当发送分组数据信道时，对应的终端的信道。 自适应复用方案在概念上等于自适应地实现单一预编码的方案。 单一预编码复用包括正交频域域复用（OFCDM），快速傅里叶变换扩频OFDM（FFT-S-OFDM），快速跳频OFDM（FFH-OFDM）等。 该方法和装置自适应地选择复用方案，并使用选择的复用方案发送/接收数据，从而提高分组数据的接收性能。

    Method and apparatus for mapping/demapping modulation symbols in a mobile communication system
    126.
    发明授权
    Method and apparatus for mapping/demapping modulation symbols in a mobile communication system 有权
    用于在移动通信系统中映射/解映射调制符号的方法和装置

    公开(公告)号：US08942079B2

    公开(公告)日：2015-01-27

    申请号：US12102390

    申请日：2008-04-14

    申请人： Jin-Kyu Han ,  Ju-Ho Lee ,  Joon-Young Cho ,  Hwan-Joon Kwon

    发明人： Jin-Kyu Han ,  Ju-Ho Lee ,  Joon-Young Cho ,  Hwan-Joon Kwon

    IPC分类号： H04J9/00 ,  H04J1/00 ,  H04K1/10 ,  H04L25/02 ,  H04L5/00

    CPC分类号： H04L25/0226 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0048

    摘要： A method for mapping wireless resources of reference symbols for channel state estimation and modulation symbols for user information transmission in a transmitter of an Orthogonal Frequency Division Multiplexing (OFDM) mobile communication system is disclosed. The mapping method includes channel-encoding and modulating a user information stream to be transmitted, and then generating a systematic symbol stream and a parity symbol stream; and preferentially arranging systematic modulation symbols in resource elements of a symbol including no reference symbol, and then arranging parity modulation symbols in remaining resource elements.

    摘要翻译： 公开了一种在正交频分复用（OFDM）移动通信系统的发射机中映射用于信道状态估计和用于用户信息传输的调制符号的参考符号的无线资源的方法。 映射方法包括对要发送的用户信息流进行信道编码和调制，然后生成系统符号流和奇偶校验符号流; 并且优先在不包括参考符号的符号的资源元素中排列系统调制符号，然后将奇偶校验调制符号设置在剩余的资源元素中。

    Method and device for sending and receiving a reference signal
    128.
    发明授权
    Method and device for sending and receiving a reference signal 有权
    用于发送和接收参考信号的方法和装置

    公开(公告)号：US08743788B2

    公开(公告)日：2014-06-03

    申请号：US13390502

    申请日：2010-08-13

    申请人： Hyoung-Ju Ji ,  Joon-Young Cho ,  Ju-Ho Lee

    发明人： Hyoung-Ju Ji ,  Joon-Young Cho ,  Ju-Ho Lee

    IPC分类号： H04W4/00 ,  H04B7/212

    CPC分类号： H04L5/0048 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0041 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0069 ,  H04L27/2613 ,  H04W72/042 ,  H04W88/08

    摘要： The present invention relates to a method for sending and receiving a reference signal for a backhaul subframe in a wireless communication system in which a relay is present and also to a device therefor, constituted in such a way that common reference signals for a plurality of receiving devices and reference signals dedicated to separate receiving devices are allocated dispersed in a subframe, and the common reference signals and the dedicated reference signals are generated and are sent and received via the subframe. The present invention can improve the channel estimation performance for subframes in a wireless communication system. In this way, communications efficiency in wireless communication systems can be improved.

    摘要翻译： 本发明涉及一种用于在其中存在中继器的无线通信系统中发送和接收用于回程子帧的参考信号的方法，并且还涉及一种用于多个接收的公共参考信号 专用于分离的接收设备的设备和参考信号被分散在子帧中，并且生成公共参考信号和专用参考信号，并经由子帧发送和接收。 本发明可以提高无线通信系统中子帧的信道估计性能。 以这种方式，可以提高无线通信系统中的通信效率。

    Apparatus and method for resource allocation information transmission in mobile communication system
    129.
    发明授权
    Apparatus and method for resource allocation information transmission in mobile communication system 有权
    移动通信系统资源分配信息传输的装置和方法

    公开(公告)号：US08724561B2

    公开(公告)日：2014-05-13

    申请号：US12797843

    申请日：2010-06-10

    申请人： Sang-Min Lee ,  Eun-Yong Kim ,  Joon-Young Cho ,  Ju-Ho Lee ,  Tak-Ki Yu

    发明人： Sang-Min Lee ,  Eun-Yong Kim ,  Joon-Young Cho ,  Ju-Ho Lee ,  Tak-Ki Yu

    IPC分类号： H04W4/00 ,  H04L5/00

    CPC分类号： H04W72/0406 ,  H04L1/001 ,  H04L1/0038 ,  H04L1/1812 ,  H04L1/1816 ,  H04L1/1854 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0053 ,  H04L27/2601

    摘要： An apparatus and method for resource allocation information transmission is provided. The method includes determining a search space for use in a second frequency band using resource allocation information of a first process detected in a first frequency band, detecting resource allocation information using the search space in the second frequency band, and when failing to decode received data according to the resource allocation information detected in the second frequency band, re-detecting resource allocation information of the first process in the second frequency band in a first time interval using the search space without detecting the resource allocation information of the first process in the first frequency band.

    摘要翻译： 提供了一种用于资源分配信息传输的装置和方法。 该方法包括使用在第一频带中检测到的第一进程的资源分配信息来确定在第二频带中使用的搜索空间，使用第二频带中的搜索空间检测资源分配信息，以及当不能解码接收到的数据时 根据在第二频带中检测到的资源分配信息，使用搜索空间在第一时间间隔内重新检测第二频带中的第一处理的资源分配信息，而不检测第一处理中的第一处理的资源分配信息 频带。

    Method, apparatus, and system for transmitting and receiving information of an uncoded channel in an orthogonal frequency division multiplexing system
    130.
    发明授权
    Method, apparatus, and system for transmitting and receiving information of an uncoded channel in an orthogonal frequency division multiplexing system 有权
    用于在正交频分复用系统中发送和接收未编码信道的信息的方法，装置和系统

    公开(公告)号：US08520499B2

    公开(公告)日：2013-08-27

    申请号：US11417217

    申请日：2006-05-04

    申请人： Hwan-Joon Kwon ,  Ju-Ho Lee ,  Joon-Young Cho ,  Jin-Kyu Han ,  Dong-Hee Kim ,  Yun-Ok Cho

    发明人： Hwan-Joon Kwon ,  Ju-Ho Lee ,  Joon-Young Cho ,  Jin-Kyu Han ,  Dong-Hee Kim ,  Yun-Ok Cho

    IPC分类号： H04J11/00 ,  H04K1/10 ,  H04L27/28 ,  H04J13/00

    CPC分类号： H04L5/0055 ,  H04J13/0048 ,  H04L1/0014 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0044

    摘要： A method, apparatus and system for efficiently transmitting and receiving channels are provided in a wireless communication system based on Orthogonal Frequency Division Multiplexing (OFDM). A multiplexing scheme differs according to a channel when a transmitter transmits a packet data channel, a common control channel and a control channel designated for a particular user. Uncoded 1-bit information is broadly dispersed in frequency and time domains using multiplexing technology for maximizing diversity gain in a channel for transmitting information of at least one bit to a particular user like an acknowledgement (ACK) channel. The transmitter converts a sequence obtained by multiplexing multiple bits to be transmitted to a plurality of users to parallel signals, and broadly disperses the parallel signals in the time and frequency domains. When the uncoded 1-bit information is transmitted, reception reliability is improved because channel coding and transmission are efficiently performed using a small amount of resources.

    摘要翻译： 在基于正交频分复用（OFDM）的无线通信系统中提供用于有效发送和接收信道的方法，装置和系统。 当发射机发送分组数据信道，公共控制信道和为特定用户指定的控制信道时，复用方案根据信道而不同。 使用多路复用技术将未编码的1比特信息广泛地分散在频域和时域中，用于使通道中的分集增益最大化，以将诸如确认（ACK）信道的至少一个比特的信息发送给特定用户。 发送器将通过将要发送的多个比特复用到多个用户获得的序列转换为并行信号，并且在时域和频域中广泛地分散并行信号。 当发送未编码的1比特信息时，由于使用少量资源有效地进行信道编码和发送，所以提高了接收可靠性。