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1. 发明申请

WO2015085510A1 METHODS AND APPARATUS FOR ANTENNA CALIBRATION 审中-公开
标题翻译：天线校准的方法和装置
公开(公告)号：WO2015085510A1
公开(公告)日：2015-06-18
申请号：PCT/CN2013/089065
申请日：2013-12-11
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , ZHU, Huaisong
发明人： ZHU, Huaisong , YU, Shaowei , ZONG, Zhiyi , TIAN, Yang
IPC分类号： H04B7/06
CPC分类号： H04B17/14 , H04B7/024 , H04B7/04 , H04L27/34 , H04W88/08
摘要： The present disclosure provides a method in a base station of a radio network for antenna calibration of a first transceiver of the base station with respect to a second transceiver. The method comprises at least one of a first group and a second group of steps. The first group of steps comprises collecting a first group of amplitude and phase differences between a first calibration signal and each of a first and a fourth reception signals and between a second calibration signal and each of a second and a third reception signals. The first group of steps further comprises estimating, based on the first group of amplitude and phase differences, a signal response characteristic difference between a calibration reception chain of the first transceiver and a calibration reception chain of the second transceiver for reference antenna reception calibration of the first transceiver with respect to the second transceiver.
摘要翻译：本公开提供了一种无线电网络的基站中的方法，用于基站相对于第二收发信机的第一收发信机的天线校准。该方法包括第一组和第二组步骤中的至少一个。第一组步骤包括收集第一校准信号与第一和第四接收信号中的每一个之间以及在第二校准信号与第二和第三接收信号中的每一个之间的第一组振幅和相位差。第一组步骤还包括基于第一组振幅和相位差来估计第一收发器的校准接收链与第二收发器的校准接收链之间的信号响应特性差，用于参考天线接收校准第一收发器相对于第二收发器。

2. 发明申请

WO2013177738A1 METHOD, ARRANGEMENT AND DETECTOR FOR DETECTING HYBRID AUTOMATIC REPEAT REQUEST ACKNOWLEDGEMENT INFORMATION 审中-公开
标题翻译：检测混合自动重复请求确认信息的方法，安排和检测器
公开(公告)号：WO2013177738A1
公开(公告)日：2013-12-05
申请号：PCT/CN2012/076166
申请日：2012-05-28
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , WANG, Hai , LI, Peng , YU, Shaowei , ZHANG, Ruiqi
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.
摘要翻译：无线通信可以受益于用于检测HARQ-ACK信息的方法，装置和检测器。根据本发明的实施例，该方法包括从用户设备发送的数据中提取HARQ-ACK符号序列。该方法还包括生成多个候选HARQ-ACK符号序列。该方法还包括计算多个候选HARQ-ACK符号序列中的每一个与提取的HARQ-ACK符号序列之间的相似度，以获得多个相似度。该方法还包括将多个相似度的极值与预定阈值进行比较。此外，该方法包括基于比较来确定是否已经从用户设备发送了HARQ-ACK信息。

3. 发明申请

WO2011147052A1 METHOD, APPARATUS AND SYSTEM FOR ANTENNA CALIBRATION 审中-公开
标题翻译：方法，装置和系统进行天线校准
公开(公告)号：WO2011147052A1
公开(公告)日：2011-12-01
申请号：PCT/CN2010/000764
申请日：2010-05-28
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , LIAO, Jingyi , YU, Shaowei , ZHONG, Zhiyi
发明人： LIAO, Jingyi , YU, Shaowei , ZHONG, 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.
摘要翻译：本发明公开了一种用于校准天线的方法，装置和系统，其中对待校准的至少一个天线上的子载波和参考天线获得信道传递函数，并且所获得的第一子载波的信道传递函数被滤波通过将对称滤波器与所述第一载波的相邻子载波的信道传递函数相乘，并且滤波的信道传递函数被归一化; 并且将要校准的天线上的第一子载波承载的信号与所述参考天线上的第一子载波的滤波和归一化信道传递函数与所述第一子载波的滤波和归一化信道传递函数的比值相乘以获得补偿。这使得能够在子载波的基础上执行联合补偿，从而降低计算复杂度。

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