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    • 34. 发明授权
    • Filtering and guard band for non-synchronized transmission
    • 滤波和保护频段用于非同步传输
    • US08223700B2
    • 2012-07-17
    • US12007171
    • 2008-01-07
    • Yinong DingFarooq Khan
    • Yinong DingFarooq Khan
    • H04W4/00H04B7/216H04J3/00
    • H04W74/002H04W74/0833
    • A wireless terminal capable of communicating with a wireless communication system comprised of a plurality of wireless terminals and a plurality of base stations. The wireless terminal selects a sequence from a group of certain sequences for random access. At least one sub-carriers on an uplink channel including at least one data channel is allocated for at least one random access channel. Each data channel includes a continuous set of data sub-carriers. The wireless terminal then filters the at least one random access channel by applying a Raised Cosine filter, maps the selected sequence to the at least one random access channel to generate a random access channel signal, and transmits the random access channel signal to a base station.
    • 一种能够与由多个无线终端和多个基站组成的无线通信系统进行通信的无线终端。 无线终端从一组特定序列中选择一个序列进行随机访问。 至少一个随机接入信道被分配给包括至少一个数据信道的上行链路信道上的至少一个子载波。 每个数据信道包括连续的一组数据子载波。 然后,无线终端通过应用升余弦滤波器对所述至少一个随机接入信道进行滤波,将所选择的序列映射到所述至少一个随机接入信道以产生随机接入信道信号,并将所述随机接入信道信号发送到基站 。
    • 35. 发明授权
    • Transmit methods with delay diversity and space-frequency diversity
    • 具有延迟分集和空间 - 频率分集的发射方法
    • US08160177B2
    • 2012-04-17
    • US12155319
    • 2008-06-02
    • Jianzhong ZhangCornelius Van RensburgFarooq KhanYinong Ding
    • Jianzhong ZhangCornelius Van RensburgFarooq KhanYinong Ding
    • H04B7/06
    • H04L1/0606H04B7/0456H04B7/0486H04B7/0671H04L1/0668H04L1/08H04L1/1819H04L5/0023H04L25/03898H04L27/2626
    • In this invention, several open-loop solutions that encompass the small delay CDD codeword cycling, codeword cycling between different re-transmissions of both small and large delay CDD are proposed. In addition, an open-loop codeword cycling method for SFBC+FSTD scheme, as well as its extension to SFBC+FSTD based HARQ, are proposed. In one method, a plurality of information bits are encoded, scrambled and modulated to generate a plurality of modulation symbols. The plurality of modulation symbols are mapped onto the subcarriers in at least one transmission layer of a transmission resource. The modulation symbols are then precoded by using a matrix for cyclic delay diversity and a set of codewords from a certain codebook to generate a plurality of precoded symbols. The codewords are cycled for every a certain number of subcarriers. Finally, the precoded symbols are transmitted via a plurality of transmission antennas.
    • 在本发明中,提出了包含小延迟CDD码字循环,小型和大型延迟CDD的不同重新传输之间的码字循环的几种开环解决方案。 此外,提出了用于SFBC + FSTD方案的开环码字循环方法,以及其对基于SFBC + FSTD的HARQ的扩展。 在一种方法中,多个信息比特被编码,加扰和调制以产生多个调制符号。 多个调制符号被映射到传输资源的至少一个传输层中的子载波上。 然后通过使用用于循环延迟分集的矩阵和来自某个码本的一组码字来生成多个预编码符号来对调制符号进行预编码。 每个一定数量的副载波循环码字。 最后,预编码符号经由多个发送天线发送。
    • 37. 发明授权
    • Apparatus and method for channel estimation and echo cancellation in a wireless repeater
    • 无线中继器中的信道估计和回波消除的装置和方法
    • US07894768B2
    • 2011-02-22
    • US12229977
    • 2008-08-28
    • Yinong DingCornelius Van RensburgJoseph R. Cleveland
    • Yinong DingCornelius Van RensburgJoseph R. Cleveland
    • H04Q7/32
    • H04B7/15585
    • A system and method for channel estimation and echo cancellation in wireless system repeaters. A repeater with improved echo cancellation comprises an input radio control element having a receiving antenna and an output radio control element having a transmitting antenna; a power amplifier connected between the input radio control element and the output radio control element; and a signal processing unit connected between the input radio control element and the output radio control element. The signal processing unit is configured to estimate the communication channel from the transmitting antenna to the receiving antenna to produce a channel estimation. The signal processing unit is further configured to perform echo cancellation based on the channel estimation.
    • 一种用于无线系统中继器中的信道估计和回波消除的系统和方法。 具有改善的回波消除的中继器包括具有接收天线的输入无线电控制元件和具有发射天线的输出无线电控制元件; 连接在所述输入无线电控制元件和所述输出无线电控制元件之间的功率放大器; 以及连接在输入无线电控制元件和输出无线电控制元件之间的信号处理单元。 信号处理单元被配置为估计从发射天线到接收天线的通信信道,以产生信道估计。 信号处理单元还被配置为基于信道估计来执行回波消除。
    • 38. 发明授权
    • Apparatus and method for channel estimation and echo cancellation in a wireless repeater
    • 无线中继器中的信道估计和回波消除的装置和方法
    • US07596352B2
    • 2009-09-29
    • US11145619
    • 2005-06-06
    • Yinong DingCornelius Van RensburgJoseph R. Cleveland
    • Yinong DingCornelius Van RensburgJoseph R. Cleveland
    • H04Q7/20
    • H04B7/15585
    • A system and method for channel estimation and echo cancellation in wireless system repeaters. A repeater with improved echo cancellation comprises an input radio control element having a receiving antenna and an output radio control element having a transmitting antenna; a power amplifier connected between the input radio control element and the output radio control element; and a signal processing unit connected between the input radio control element and the output radio control element. The signal processing unit is configured to estimate the communication channel from the transmitting antenna to the receiving antenna to produce a channel estimation. The signal processing unit is further configured to perform echo cancellation based on the channel estimation.
    • 一种用于无线系统中继器中的信道估计和回波消除的系统和方法。 具有改善的回波消除的中继器包括具有接收天线的输入无线电控制元件和具有发射天线的输出无线电控制元件; 连接在所述输入无线电控制元件和所述输出无线电控制元件之间的功率放大器; 以及连接在输入无线电控制元件和输出无线电控制元件之间的信号处理单元。 信号处理单元被配置为估计从发射天线到接收天线的通信信道,以产生信道估计。 信号处理单元还被配置为基于信道估计来执行回波消除。