公开(公告)号：WO2008067584A1

公开(公告)日：2008-06-12

申请号：PCT/AU2007/001419

申请日：2007-09-25

Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION ,  MURRAY, Boyd, McGregor ,  ABBOTT, David, Andrew ,  PATHIKULANGARA, Joseph, Abraham ,  BUNTON, John ,  DYADYUK, Valeriy

Inventor： MURRAY, Boyd, McGregor ,  ABBOTT, David, Andrew ,  PATHIKULANGARA, Joseph, Abraham ,  BUNTON, John ,  DYADYUK, Valeriy

IPC: H04B1/04 ,  H04B1/06 ,  H04L27/26

CPC classification number: H04B1/0483 ,  H04L5/0007 ,  H04L25/03834 ,  H04L27/0014 ,  H04L27/2637 ,  H04L27/2653 ,  H04L2027/0024 ,  H04L2027/0067

Abstract: 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.

Abstract translation: 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。

公开(公告)号：WO2011009157A1

公开(公告)日：2011-01-27

申请号：PCT/AU2010/000854

申请日：2010-07-05

Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION ,  HUANG, Xiaojing ,  MURRAY, Boyd, McGregor ,  BUNTON, John, David ,  GUO, Yingjie, Jay ,  DYADYUK, Valeriy

Inventor： HUANG, Xiaojing ,  MURRAY, Boyd, McGregor ,  BUNTON, John, David ,  GUO, Yingjie, Jay ,  DYADYUK, Valeriy

IPC: H04J11/00 ,  H04B7/204 ,  H04J1/00 ,  H04L27/26

CPC classification number: H04L5/001 ,  H04L5/0037 ,  H04L27/2614 ,  H04L27/2636

Abstract: A wireless data communications method and transmitter are disclosed. A transmitter (402 N , 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 (502 N , 900) is also provided in conjunction with the transmitter (800) to constitute a transceiver.

Abstract translation: 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）以构成收发器。