公开(公告)号：US09065586B2

公开(公告)日：2015-06-23

申请号：US13852447

申请日：2013-03-28

Applicant: ST-Ericsson SA

Inventor： Naveen Jacob ,  Sajal Kumar Das ,  Ravi Jandial ,  Ivine Kuruvila

IPC: H04W4/00 ,  H04J11/00 ,  H04L27/26 ,  H04W48/16

CPC classification number: H04J11/0089 ,  H04J11/0069 ,  H04L27/265 ,  H04W48/16

Abstract: A wireless communication apparatus is arranged to detect, among a plurality of modulated carrier signals of different frequencies, at least one of the modulated carrier signals modulated with a tone burst. A receiver provides a composite signal comprising the plurality of modulated carrier signals received simultaneously. An ADC generates samples of the composite signal, and the samples of the composite signal are divided into a plurality of blocks. The samples of each block are transformed into frequency domain components, and the frequency domain components of each block are divided into a plurality of groups, each group corresponding to a range of frequencies occupied by a different one of the modulated carrier signals. Tone burst detection is performed on each group, and it is determined which of the modulated carrier signals is modulated with the tone burst, according to which of the groups the tone burst is detected in.

Abstract translation: 无线通信装置被配置为在不同频率的多个被调制的载波信号中，检测以音调突发调制的调制载波信号中的至少一个。 接收机提供包括同时接收的多个调制载波信号的复合信号。 ADC产生复合信号的样本，并且复合信号的样本被分成多个块。 每个块的样本被转换成频域分量，并且每个块的频域分量被划分成多个组，每个组对应于由调制载波信号中的不同一个所占用的频率范围。 对每个组执行音调突发检测，并且根据哪个组中检测到音调突发，确定调制的载波信号中的哪一个是用音调脉冲串调制的。

公开(公告)号：US20130295925A1

公开(公告)日：2013-11-07

申请号：US13852447

申请日：2013-03-28

Applicant: ST-ERICSSON SA

Inventor： Naveen Jacob ,  Sajal Kumar Das ,  Ravi Jandial ,  Ivine Kuruvila

IPC: H04W48/16

CPC classification number: H04J11/0089 ,  H04J11/0069 ,  H04L27/265 ,  H04W48/16

Abstract: A wireless communication apparatus is arranged to detect, among a plurality of modulated carrier signals of different frequencies, at least one of the modulated carrier signals modulated with a tone burst. A receiver provides a composite signal comprising the plurality of modulated carrier signals received simultaneously. An ADC generates samples of the composite signal, and the samples of the composite signal are divided into a plurality of blocks. The samples of each block are transformed into frequency domain components, and the frequency domain components of each block are divided into a plurality of groups, each group corresponding to a range of frequencies occupied by a different one of the modulated carrier signals. Tone burst detection is performed on each group, and it is determined which of the modulated carrier signals is modulated with the tone burst, according to which of the groups the tone burst is detected in.

Abstract translation: 无线通信装置被配置为在不同频率的多个被调制的载波信号中，检测以音调突发调制的调制载波信号中的至少一个。 接收机提供包括同时接收的多个调制载波信号的复合信号。 ADC产生复合信号的样本，并且复合信号的样本被分成多个块。 每个块的样本被转换成频域分量，并且每个块的频域分量被划分成多个组，每个组对应于由调制载波信号中的不同一个所占用的频率范围。 对每个组执行音调突发检测，并且根据哪个组中检测到音调突发，确定调制的载波信号中的哪一个是用音调脉冲串调制的。