专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2016112537A1 METHOD AND APPARATUS FOR EXTRACTING RESOURCE BLOCK FROM SIGNAL 审中-公开
标题翻译：从信号提取资源块的方法和装置
公开(公告)号：WO2016112537A1
公开(公告)日：2016-07-21
申请号：PCT/CN2015/070892
申请日：2015-01-16
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , YU, Shaowei
发明人： YU, Shaowei , LI, Peng , LI, Feng
IPC分类号： H04L27/26
CPC分类号： H04L27/2659 , H04L27/2647 , H04L27/2669 , H04W56/001
摘要： The embodiments disclose a method in a base station for extracting a resource block at a frequency band from a signal received from a terminal device in a radio communication system employing OFDM. The method comprising: removing a CP portion corresponding to the resource block from the signal; for each of a predetermined number of successive symbols in the signal after the CP portion corresponding to the resource block has been removed, performing a FFT of the symbol, extracting a frequency domain signal corresponding to the frequency band from the FFT of the symbol, performing an IFFT on the extracted frequency domain signal to yield a time domain signal, and storing the time domain signal to form a time sequence by concatenation; performing a FFT of the stored time sequence; and extracting subcarriers corresponding to the resource block from the FFT of the stored time sequence.
摘要翻译：实施方式公开了一种基站中的方法，用于从采用OFDM的无线通信系统中从终端装置接收的信号中提取频带的资源块。该方法包括：从信号中去除对应于资源块的CP部分; 对于与资源块对应的CP部分之后的信号中的预定数量的连续符号中的每一个已经被去除，执行符号的FFT，从符号的FFT中提取与频带相对应的频域信号，执行对所提取的频域信号进行IFFT以产生时域信号，并且通过级联来存储时域信号以形成时间序列; 执行所存储的时间序列的FFT; 以及从所存储的时间序列的FFT中提取与资源块相对应的子载波。

2. 发明申请

WO2018232556A1 METHOD AND APPARATUS FOR ANTENNA CALIBRATION IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
公开(公告)号：WO2018232556A1
公开(公告)日：2018-12-27
申请号：PCT/CN2017/088970
申请日：2017-06-19
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , YU, Shaowei
发明人： YU, Shaowei , XIAO, Lei , ZHU, Huaisong , CHEN, Xueqin
IPC分类号： H04B7/06
摘要： Embodiments of the present disclosure provide methods, apparatuses and computer program products for antenna calibration in a distributed antenna system (DAS). A method is implemented in a digital unit connected with a plurality of distributed antennas including a first antenna, a second antenna and a third antenna. The method comprises: causing transmitting a first signal from the first antenna, a second signal from the second antenna, and a third signal from the third antenna in a same frequency resource; obtaining a receiver and transmitter side loop-back phase difference between the first antenna and the second antenna based on the first signal received at the third antenna, the second signal received at the third antenna, the third signal received at the first antenna, and the third signal received at the second antenna; and obtaining estimations of a time delay difference and an initial phase difference between the first and second antennas based on the obtained loop-back phase difference. Embodiments of the present disclosure may provide improved antenna calibration with low complexity and without need for a Couple Control Unit (CCU).

3. 发明申请

WO2016141566A1 METHODS AND APPARATUSES FOR ANTENNA CALIBRATION 审中-公开
标题翻译：用于天线校准的方法和装置
公开(公告)号：WO2016141566A1
公开(公告)日：2016-09-15
申请号：PCT/CN2015/073996
申请日：2015-03-11
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , YU, Shaowei
发明人： YU, Shaowei , ZHU, Huaisong , ZONG, Zhiyi
IPC分类号： H04B17/14
CPC分类号： H04B17/14 , H01Q3/267 , H04B7/024 , H04B7/04 , H04B17/12 , H04B17/21 , H04L27/34 , H04W88/08
摘要： The present disclosure provides a method and an apparatus in a radio base station for inter-transceiver antenna calibration. The method comprises collecting a first phase difference between a first signal and a first reception signal and a second phase difference between a second signal and a second reception signal. The first signal is transmitted through a reference transmission path of a first transceiver and received through a reference reception path of a second transceiver as the first reception signal. The second signal is transmitted through a reference transmission path of the second transceiver and received through a reference reception path of the first transceiver as the second reception signal. The method further comprises determining and compensating for an inter-loop phase response difference between a first reference path loop of the first transceiver and a second reference path loop of the second transceiver by subtracting the second phase difference from the first phase difference. The first reference path loop consists of the reference transmission path and the reference reception path of the first transceiver, and the second reference path loop consists of the reference transmission path and the reference reception path of the second transceiver.
摘要翻译：本公开提供了一种在无线电基站中进行收发器间天线校准的方法和装置。该方法包括收集第一信号和第一接收信号之间的第一相位差和第二信号与第二接收信号之间的第二相位差。第一信号通过第一收发器的参考传输路径发送，并通过第二收发机的参考接收路径作为第一接收信号接收。第二信号通过第二收发器的参考传输路径发送，并通过第一收发机的参考接收路径作为第二接收信号接收。该方法还包括通过从第一相位差减去第二相位差来确定和补偿第一收发器的第一参考路径环路与第二收发器的第二参考路径环路之间的环路间相位响应差。第一参考路径循环包括第一收发器的参考传输路径和参考接收路径，第二参考路径环路由第二收发器的参考传输路径和参考接收路径组成。

4. 发明公开

EP3245770A1 METHOD AND APPARATUS FOR EXTRACTING RESOURCE BLOCK FROM SIGNAL 审中-公开
标题翻译：从信号中提取资源块的方法和设备
公开(公告)号：EP3245770A1
公开(公告)日：2017-11-22
申请号：EP15877455.4
申请日：2015-01-16
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： YU, Shaowei , LI, Peng , LI, Feng
IPC分类号： H04L27/26
CPC分类号： H04L27/2659 , H04L27/2647 , H04L27/2669 , H04W56/001
摘要： The embodiments disclose a method in a base station for extracting a resource block at a frequency band from a signal received from a terminal device in a radio communication system employing OFDM. The method comprising: removing a CP portion corresponding to the resource block from the signal; for each of a predetermined number of successive symbols in the signal after the CP portion corresponding to the resource block has been removed, performing a FFT of the symbol, extracting a frequency domain signal corresponding to the frequency band from the FFT of the symbol, performing an IFFT on the extracted frequency domain signal to yield a time domain signal, and storing the time domain signal to form a time sequence by concatenation; performing a FFT of the stored time sequence; and extracting subcarriers corresponding to the resource block from the FFT of the stored time sequence.

5. 发明授权

EP3269056B1 METHODS AND APPARATUSES FOR ANTENNA CALIBRATION 有权
公开(公告)号：EP3269056B1
公开(公告)日：2020-02-26
申请号：EP15884249.2
申请日：2015-03-11
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： YU, Shaowei , ZHU, Huaisong , ZONG, Zhiyi
IPC分类号： H04B17/14

6. 发明公开

EP2577883A1 METHOD, APPARATUS AND SYSTEM FOR ANTENNA CALIBRATION 审中-公开
标题翻译：方法，设备和系统天线校正
公开(公告)号：EP2577883A1
公开(公告)日：2013-04-10
申请号：EP10851924.0
申请日：2010-05-28
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： LIAO, Jingyi , YU, Shaowei , ZONG, Zhiyi
IPC分类号： H04B7/00
CPC分类号： H04B17/12 , H04B17/104
摘要： The present invention discloses a method, an apparatus and a system for calibrating antenna, wherein channel transfer functions are obtained for subcarriers on at least one antenna to be calibrated and on a reference antenna, and the obtained channel transfer function of a first subcarrier is filtered by multiplying a symmetry filter with channel transfer functions of said first carrier's neighboring subcarriers, and the filtered channel transfer function is normalized; and a signal carried by the first subcarrier on the antenna to be calibrated is multiplied with the ratio of the filtered and normalized channel transfer function of the first subcarrier on said reference antenna to the filtered and normalized channel transfer function of said first subcarrier to get compensated. This enables to perform joint compensation on a subcarrier basis and thus reduce computation complexity.

7. 发明公开

EP3269056A1 METHODS AND APPARATUSES FOR ANTENNA CALIBRATION 有权
标题翻译：用于天线校准的方法和设备
公开(公告)号：EP3269056A1
公开(公告)日：2018-01-17
申请号：EP15884249.2
申请日：2015-03-11
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： YU, Shaowei , ZHU, Huaisong , ZONG, Zhiyi
IPC分类号： H04B17/14
CPC分类号： H04B17/14 , H01Q3/267 , H04B7/024 , H04B7/04 , H04B17/12 , H04B17/21 , H04L27/34 , H04W88/08
摘要： The present disclosure provides a method and an apparatus in a radio base station for inter-transceiver antenna calibration. The method comprises collecting a first phase difference between a first signal and a first reception signal and a second phase difference between a second signal and a second reception signal. The first signal is transmitted through a reference transmission path of a first transceiver and received through a reference reception path of a second transceiver as the first reception signal. The second signal is transmitted through a reference transmission path of the second transceiver and received through a reference reception path of the first transceiver as the second reception signal. The method further comprises determining and compensating for an inter-loop phase response difference between a first reference path loop of the first transceiver and a second reference path loop of the second transceiver by subtracting the second phase difference from the first phase difference. The first reference path loop consists of the reference transmission path and the reference reception path of the first transceiver, and the second reference path loop consists of the reference transmission path and the reference reception path of the second transceiver.

8. 发明公开

EP3632002A1 METHOD AND APPARATUS FOR ANTENNA CALIBRATION IN A WIRELESS COMMUNICATION SYSTEM 有权
公开(公告)号：EP3632002A1
公开(公告)日：2020-04-08
申请号：EP17914829.1
申请日：2017-06-19
申请人： Telefonaktiebolaget LM Ericsson (PUBL)
发明人： YU, Shaowei , XIAO, Lei , ZHU, Huaisong , CHEN, Xueqin
IPC分类号： H04B7/06

9. 发明公开

EP2856684A1 METHOD, ARRANGEMENT AND DETECTOR FOR DETECTING HYBRID AUTOMATIC REPEAT REQUEST ACKNOWLEDGEMENT INFORMATION 有权
标题翻译：方法，安排和探测器，用于探测HARQ的确认信息
公开(公告)号：EP2856684A1
公开(公告)日：2015-04-08
申请号：EP12877639.0
申请日：2012-05-28
申请人： Telefonaktiebolaget LM Ericsson (Publ)
发明人： WANG, Hai , LI, Peng , YU, Shaowei , ZHANG, Ruiqi
IPC分类号： H04L1/18
CPC分类号： H04L1/1887 , H04L1/0073 , H04L1/1607 , H04L1/1812 , H04L1/1829 , H04L5/0055 , H04W72/0413 , H04W72/12 , H04W88/08
摘要： Wireless communications may benefit from a method, an arrangement, and a detector for detecting HARQ-ACK information. According to embodiments of the present invention, the method comprises extracting a HARQ-ACK symbol sequence in data transmitted from a user equipment. The method also comprises generating a plurality of candidate HARQ-ACK symbol sequences. The method further comprises calculating a degree of similarity between each of the plurality of candidate HARQ-ACK symbol sequences and the extracted HARQ-ACK symbol sequence to obtain a plurality of degrees of similarity. The method additionally comprises comparing an extremum of the plurality of degrees of similarity with a predetermined threshold. Furthermore, the method comprises determining, based upon the comparing, whether the HARQ-ACK information has been transmitted from the user equipment.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式