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    RANDOM ACCESS METHOD BASED ON NUMBER OF MESSAGES
    1.
    发明申请
    RANDOM ACCESS METHOD BASED ON NUMBER OF MESSAGES 失效
    基于信息数量的随机访问方法

    公开(公告)号：US20110134779A1

    公开(公告)日：2011-06-09

    申请号：US12964274

    申请日：2010-12-09

    申请人： Kyung Soo KIM ,  Dong Seung Kwon

    发明人： Kyung Soo KIM ,  Dong Seung Kwon

    IPC分类号： H04L12/26

    CPC分类号： H04W74/085 ,  H04W74/0891

    摘要： A base station calculates the number of terminals which have transmitted messages at ith frame, and calculates the number of messages to be transmitted at (i+1)th frame by using the number of terminals which have transmitted the messages in the ith frame. The base station calculates a transmission probability by using the number of messages to be transmitted in the (i+1)th frame and the number of random access slots, and transmits the number of messages to be transmitted in the (i+1)th frame and the transmission probability to the plurality of terminals. The base station receives a message transmitted by a pertinent terminal, whose number of messages to be transmitted in the (i+1)th frame is greater than the number of random access slots, among the plurality of terminals, according to the result obtained by comparing the transmission probability and a random number.

    摘要翻译： 基站计算在第i帧发送消息的终端的数量，并且使用在第i帧中发送了消息的终端的数量来计算在第（i + 1）帧发送的消息的数量。 基站通过使用在第（i + 1）帧中发送的消息的数量和随机接入时隙的数量来计算发送概率，并且发送第（i + 1）个发送的消息的数量 帧和传输概率到多个终端。 根据由第（i + 1）帧中发送的结果获得的结果，基站接收由相关终端发送的消息，其中在第（i + 1）帧中要发送的消息的数量大于随机接入时隙的数目 比较传输概率和随机数。

    Random access method based on number of messages
    2.
    发明授权
    Random access method based on number of messages 失效
    基于消息数的随机存取方法

    公开(公告)号：US08503475B2

    公开(公告)日：2013-08-06

    申请号：US12964274

    申请日：2010-12-09

    申请人： Kyung Soo Kim ,  Dong Seung Kwon

    发明人： Kyung Soo Kim ,  Dong Seung Kwon

    IPC分类号： H04L12/43 ,  H04W4/00 ,  H04J3/24

    CPC分类号： H04W74/085 ,  H04W74/0891

    摘要： A base station calculates the number of terminals which have transmitted messages at ith frame, and calculates the number of messages to be transmitted at (i+1)th frame by using the number of terminals which have transmitted the messages in the ith frame. The base station calculates a transmission probability by using the number of messages to be transmitted in the (i+1)th frame and the number of random access slots, and transmits the number of messages to be transmitted in the (i+1)th frame and the transmission probability to the plurality of terminals. The base station receives a message transmitted by a pertinent terminal, whose number of messages to be transmitted in the (i+1)th frame is greater than the number of random access slots, among the plurality of terminals, according to the result obtained by comparing the transmission probability and a random number.

    摘要翻译： 基站计算在第i帧发送消息的终端的数量，并且使用在第i帧中发送了消息的终端的数量来计算在第（i + 1）帧发送的消息的数量。 基站通过使用在第（i + 1）帧中发送的消息的数量和随机接入时隙的数量来计算发送概率，并且发送第（i + 1）个发送的消息的数量 帧和传输概率到多个终端。 根据由第（i + 1）帧中发送的结果获得的结果，基站接收由相关终端发送的消息，其中在第（i + 1）帧中要发送的消息的数量大于随机接入时隙的数目 比较传输概率和随机数。

    METHOD OF TRANSMITTING SIGNAL AND METHOD OF RECEIVING SIGNAL
    3.
    发明申请
    METHOD OF TRANSMITTING SIGNAL AND METHOD OF RECEIVING SIGNAL 有权
    发送信号的方法和接收信号的方法

    公开(公告)号：US20110116570A1

    公开(公告)日：2011-05-19

    申请号：US13001324

    申请日：2009-06-25

    申请人： Jihyung Kim ,  Wooram Shin ,  Dong Seung Kwon ,  Ju Ilyup Kim ,  Wooram Shin ,  Dong Seung Kwon ,  Ju Hyup Kim ,  Een Kee Hong

    发明人： Jihyung Kim ,  Wooram Shin ,  Dong Seung Kwon ,  Ju Ilyup Kim ,  Wooram Shin ,  Dong Seung Kwon ,  Ju Hyup Kim ,  Een Kee Hong

    IPC分类号： H04L27/00

    CPC分类号： H04L5/0048 ,  H04J11/005 ,  H04L5/0007

    摘要： In a multicell communication system, a terminal that belongs to a second cell using the same subcarrier as a terminal that belongs to a first cell changes a pilot in an allocated basic resource block. Then, a base station that manages the first cell can estimate a channel of an interference signal transmitted from a second cell from a reception signal even though the reception signal includes an interference signal from the terminal that belongs to the second cell at the time of receiving a signal transmitted from the terminal that belongs to the first cell. Further, the base station that manages the first cell may reduce an interference signal from a reception signal by using a channel estimation value.

    摘要翻译： 在多单元通信系统中，属于与属于第一小区的终端相同的子载波的第二小区的终端在所分配的基本资源块中改变导频。 然后，管理第一小区的基站即使接收信号在接收时包括来自属于第二小区的终端的干扰信号，也能够从接收信号估计从第二小区发送的干扰信号的信道 从属于第一小区的终端发送的信号。 此外，管理第一小区的基站可以通过使用信道估计值来减少来自接收信号的干扰信号。

    Method for channel estimation and feedback in wireless communication system
    7.
    发明授权
    Method for channel estimation and feedback in wireless communication system 有权
    无线通信系统中的信道估计和反馈方法

    公开(公告)号：US08718167B2

    公开(公告)日：2014-05-06

    申请号：US12677412

    申请日：2008-09-10

    申请人： Choong il Yeh ,  Dong Seung Kwon ,  Jee Hwan Ahn

    发明人： Choong il Yeh ,  Dong Seung Kwon ,  Jee Hwan Ahn

    IPC分类号： H04B7/02 ,  H04B1/38 ,  H04W4/00

    CPC分类号： H04L25/0224 ,  H04B7/0452 ,  H04B7/0626 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/0204 ,  H04L43/50

    摘要： Disclosed is a method for channel estimation and feedback in a wireless communication system that estimates a channel for each transmission antenna using an orthogonal frequency division multiplexing (OFDM) impulse signal. A method for channel estimation in a wireless communication system includes causing a base station to generate a training signal with a specific waveform for each transmission antenna and to transmit the generated training signal to terminals; causing the terminals to acquire a downlink channel impulse response for each transmission antenna of the base station using the training signal transmitted from the base station; causing the terminals to acquire a downlink channel characteristic for each transmission antenna of the base station using the acquired channel impulse response; causing the terminal to feed back the acquired downlink channel characteristic information to the base station; and causing the base station to perform fast Fourier transform (FFT) on the downlink channel information transmitted from the terminals to indirectly acquire full channel status information (CSI).

    摘要翻译： 公开了一种用于使用正交频分复用（OFDM）脉冲信号估计每个发射天线的信道的无线通信系统中的信道估计和反馈的方法。 一种在无线通信系统中进行信道估计的方法，包括：使基站产生具有针对每个发射天线的特定波形的训练信号，并将生成的训练信号发射到终端; 使得终端使用从基站发送的训练信号来获取基站的每个发射天线的下行链路信道脉冲响应; 使得所述终端使用所获取的信道脉冲响应来获取所述基站的每个发送天线的下行链路信道特性; 使所述终端将所获取的下行链路信道特性信息反馈给所述基站; 并且使得基站对从终端发送的下行链路信道信息执行快速傅里叶变换（FFT）以间接获取全信道状态信息（CSI）。

    Precoding method and device
    8.
    发明授权
    Precoding method and device 有权
    预编码方法和装置

    公开(公告)号：US08625688B2

    公开(公告)日：2014-01-07

    申请号：US13139257

    申请日：2009-11-24

    申请人： Choongil Yeh ,  Young Seog Song ,  Min Sik Seo ,  Dong Seung Kwon ,  Joon-doo Kim ,  Chungyong Lee ,  Jiwon Kang

    发明人： Choongil Yeh ,  Young Seog Song ,  Min Sik Seo ,  Dong Seung Kwon ,  Joon-doo Kim ,  Chungyong Lee ,  Jiwon Kang

    IPC分类号： H04K1/10 ,  H04B7/02

    CPC分类号： H04B7/0632 ,  H04B7/0452 ,  H04B7/0465

    摘要： A method for a transmitting terminal in a multi-user multi-antenna environment to perform precoding includes: receiving feedback information from a plurality of receiving terminals; estimating a channel between the transmitting terminal and the plurality of receiving terminals by using the feedback information; and generating a plurality of transmission symbols by applying a first nonlinear precoding method and a second nonlinear precoding method to a plurality of symbols and the estimated channel to be transmitted to the plurality of receiving terminals. The first nonlinear precoding method is used to eliminate interference between subchannels of the same receiving terminal, and the second nonlinear precoding method is used to eliminate interference between the receiving terminals.

    摘要翻译： 一种用于多用户多天线环境中的发送终端执行预编码的方法包括：从多个接收终端接收反馈信息; 通过使用所述反馈信息来估计所述发送终端与所述多个接收终端之间的信道; 以及通过对多个符号应用第一非线性预编码方法和第二非线性预编码方法来生成多个传输符号，以及将估计的信道发送到多个接收终端。 第一种非线性预编码方法用于消除同一接收终端的子信道之间的干扰，第二非线性预编码方法用于消除接收终端之间的干扰。

    Signal modulating device, signal transmitting method, and code generating method
    10.
    发明授权
    Signal modulating device, signal transmitting method, and code generating method 有权
    信号调制装置，信号发送方法和代码生成方法

    公开(公告)号：US08503558B2

    公开(公告)日：2013-08-06

    申请号：US12638328

    申请日：2009-12-15

    申请人： Byung-Jae Kwak ,  Dong Seung Kwon

    发明人： Byung-Jae Kwak ,  Dong Seung Kwon

    IPC分类号： H04L5/12

    CPC分类号： H04L27/3416 ,  H04L27/36

    摘要： The present invention relates to a signal modulation device, a transmission method, and a code generation method. The signal modulation device includes a code storage unit including a plurality of n-bit members and storing a code with a number n or n−1 of different bits between two neighboring members, and a mapper for mapping data on symbols according to the code.

    摘要翻译： 本发明涉及信号调制装置，发送方法和代码生成方法。 信号调制装置包括：码存储单元，包括多个n比特成员，并存储两个相邻成员之间具有n或n-1个不同比特的码;以及映射器，用于根据该码映射符号数据。