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公开(公告)号：US20100142598A1
公开(公告)日：2010-06-10
申请号：US12517742
申请日：2007-09-25
申请人： Boyd McGregor Murray , David Andrew Abbott , Joseph Abraham Pathikulangara , John Bunton , Valeriy Dyadyuk
发明人： Boyd McGregor Murray , David Andrew Abbott , Joseph Abraham Pathikulangara , John Bunton , Valeriy Dyadyuk
CPC分类号： H04B1/0483 , H04L5/0007 , H04L25/03834 , H04L27/0014 , H04L27/2637 , H04L27/2653 , H04L2027/0024 , H04L2027/0067
摘要： A circuit for transmission and reception of multi-channel communications is disclosed. The transmitter path includes a digital modulation circuit receiving multiple channel binary data, and for each channel generating a digital representation of the data. A digital-to-analogue (D/A) conversion circuit (140-146) is provided for each data channel. Each D/A conversion circuit receives and converts respective channel digital representations to produce a resultant band limited analogue signal (148-154). The band limitation arises due to a characteristic of said channel digital representations. A bandpass filter (156-162) receives and filters each analogue channel signal. The band width to the start of the stop band of each bandpass filter is wider than a respective band limited analogue channel signal and wider than the Nyquist bandwidth arising from the sampling rate of said D/A conversion circuit. In this way, signal power in unwanted Nyquist zones is effectively removed. A frequency translation circuit (172-188) abuts the multiple channel bandpass filtered analogue signals in the frequency domain without any guard bands between adjacent channel signals.
摘要翻译： 公开了一种用于多信道通信的发送和接收的电路。 发射机路径包括接收多信道二进制数据的数字调制电路，以及产生数据的数字表示的每个信道。 为每个数据通道提供数模（D / A）转换电路（140-146）。 每个D / A转换电路接收和转换相应的通道数字表示以产生合成的频带限制模拟信号（148-154）。 频带限制由于所述信道数字表示的特征而产生。 带通滤波器（156-162）接收并滤波每个模拟信道信号。 每个带通滤波器的阻带开始的带宽比相应的带限模拟信道信号宽，并且宽于由所述D / A转换电路的采样率产生的奈奎斯特带宽。 以这种方式，有效地消除了不需要的奈奎斯特地区的信号功率。 频率转换电路（172-188）在频域中邻接多通道带通滤波的模拟信号，而在相邻信道信号之间没有任何保护带。
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公开(公告)号：US08379698B2
公开(公告)日：2013-02-19
申请号：US12517742
申请日：2007-09-25
申请人： Boyd McGregor Murray , David Andrew Abbott , Joseph Abraham Pathikulangara , John Bunton , Valeriy Dyadyuk
发明人： Boyd McGregor Murray , David Andrew Abbott , Joseph Abraham Pathikulangara , John Bunton , Valeriy Dyadyuk
IPC分类号： H04B1/38
CPC分类号： H04B1/0483 , H04L5/0007 , H04L25/03834 , H04L27/0014 , H04L27/2637 , H04L27/2653 , H04L2027/0024 , H04L2027/0067
摘要： A circuit for transmission and reception of multi-channel communications is disclosed. The transmitter path includes a digital modulation circuit receiving multiple channel binary data, and for each channel generating a digital representation of the data. A digital-to-analogue (D/A) conversion circuit (140-146) is provided for each data channel. Each D/A conversion circuit receives and converts respective channel digital representations to produce a resultant band limited analogue signal (148-154). The band limitation arises due to a characteristic of said channel digital representations. A bandpass filter (156-162) receives and filters each analogue channel signal. The band width to the start of the stop band of each bandpass filter is wider than a respective band limited analogue channel signal and wider than the Nyquist bandwidth arising from the sampling rate of said D/A conversion circuit. In this way, signal power in unwanted Nyquist zones is effectively removed. A frequency translation circuit (172-188) abuts the multiple channel bandpass filtered analogue signals in the frequency domain without any guard bands between adjacent channel signals.
摘要翻译： 公开了一种用于多信道通信的发送和接收的电路。 发射机路径包括接收多信道二进制数据的数字调制电路，以及产生数据的数字表示的每个信道。 为每个数据通道提供数模（D / A）转换电路（140-146）。 每个D / A转换电路接收和转换相应的通道数字表示以产生合成的频带限制模拟信号（148-154）。 频带限制由于所述信道数字表示的特征而产生。 带通滤波器（156-162）接收并滤波每个模拟信道信号。 每个带通滤波器的阻带开始的带宽比相应的带限模拟信道信号宽，并且宽于由所述D / A转换电路的采样率产生的奈奎斯特带宽。 以这种方式，有效地消除了不需要的奈奎斯特地区的信号功率。 频率转换电路（172-188）在频域中邻接多通道带通滤波的模拟信号，而在相邻信道信号之间没有任何保护带。
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公开(公告)号：US20120182948A1
公开(公告)日：2012-07-19
申请号：US13386404
申请日：2010-07-05
CPC分类号： H04L5/001 , H04L5/0037 , H04L27/2614 , H04L27/2636
摘要： A wireless data communications method and transmitter are disclosed. A transmitter (402N, 800) includes a module (802) configured to group adjacent sub-bands from among a set of transmission radio frequency channels assigned to a terminal into a plurality of aggregated sub-bands. A single carrier modulator (804) is configured to modulate data symbols in at least some of said aggregated sub-bands. A combining module (808) is configured to combine said single carrier modulated signals into a multi-carrier signal. A receiver (502N, 900) is also provided in conjunction with the transmitter (800) to constitute a transceiver.
摘要翻译： 公开了一种无线数据通信方法和发射机。 发射机（402N，800）包括：模块（802），被配置为将分配给终端的一组发射射频信道中的相邻子带分组成多个聚合子带。 单载波调制器（804）被配置为在所述聚合子带中的至少一些中调制数据符号。 组合模块（808）被配置为将所述单载波调制信号组合成多载波信号。 还与发射机（800）一起提供接收机（502N，900）以构成收发机。
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公开(公告)号：US08754810B2
公开(公告)日：2014-06-17
申请号：US13147359
申请日：2010-01-29
IPC分类号： H01Q3/00
摘要： Disclosed is a hybrid antenna array (100) comprising a plurality of digital branches (145), each digital branch including an analogue beamforming sub-array (e.g. 110-1), each sub-array having a plurality of antenna elements (120), a phase shifter (130) adapted to apply a phase shift to the signal from each antenna element, and a combiner (e.g. 135-1) adapted to combine the phase-shifted signals. Each digital branch also includes a signal chain (e.g. 140-1) adapted to convert the output of the sub-array to baseband. The hybrid antenna array also comprises a digital processing module (150), including: an angle of arrival estimation sub-module (155) adapted to estimate an angle of arrival of a signal at the antenna elements; a phase control sub-module (170) adapted to control the phase shift applied by each phase shifter depending on the estimated angle of arrival; and a digital beamformer (165) adapted to combine the baseband signals from the digital branches using a weight vector to form an output signal (180).
摘要翻译： 公开了一种包括多个数字分支（145）的混合天线阵列（100），每个数字分支包括模拟波束形成子阵列（例如，110-1），每个子阵列具有多个天线元件（120） 适于对来自每个天线元件的信号施加相移的移相器（130）以及适于组合相移信号的组合器（例如135-1）。 每个数字分支还包括适于将子阵列的输出转换为基带的信号链（例如140-1）。 混合天线阵列还包括数字处理模块（150），包括：适于估计信号在天线元件处的到达角度的到达角估计子模块（155）; 相位控制子模块（170），其适于根据估计的到达角度控制由每个移相器施加的相移; 以及数字波束形成器（165），其适于使用权重向量组合来自所述数字分支的基带信号以形成输出信号（180）。
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公开(公告)号：US20120033761A1
公开(公告)日：2012-02-09
申请号：US13147359
申请日：2010-01-29
IPC分类号： H04L27/00
摘要： Disclosed is a hybrid antenna array (100) comprising a plurality of digital branches (145), each digital branch including an analogue beamforming sub-array (e.g. 110-1), each sub-array having a plurality of antenna elements (120), a phase shifter (130) adapted to apply a phase shift to the signal from each antenna element, and a combiner (e.g. 135-1) adapted to combine the phase-shifted signals. Each digital branch also includes a signal chain (e.g. 140-1) adapted to convert the output of the sub-array to baseband. The hybrid antenna array also comprises a digital processing module (150), including: an angle of arrival estimation sub-module (155) adapted to estimate an angle of arrival of a signal at the antenna elements; a phase control sub-module (170) adapted to control the phase shift applied by each phase shifter depending on the estimated angle of arrival; and a digital beamformer (165) adapted to combine the baseband signals from the digital branches using a weight vector to form an output signal (180).
摘要翻译： 公开了一种包括多个数字分支（145）的混合天线阵列（100），每个数字分支包括模拟波束形成子阵列（例如，110-1），每个子阵列具有多个天线元件（120） 适于对来自每个天线元件的信号施加相移的移相器（130）以及适于组合相移信号的组合器（例如135-1）。 每个数字分支还包括适于将子阵列的输出转换为基带的信号链（例如140-1）。 混合天线阵列还包括数字处理模块（150），包括：适于估计信号在天线元件处的到达角度的到达角估计子模块（155）; 相位控制子模块（170），其适于根据估计的到达角度控制由每个移相器施加的相移; 以及数字波束形成器（165），其适于使用权重向量组合来自所述数字分支的基带信号以形成输出信号（180）。
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