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1. 发明申请

US20160164592A1 DISTRIBUTED DIGITALLY CONVERTIBLE RADIO (DDCR) 审中-公开
标题翻译：分布式数字可转换无线电（DDCR）
公开(公告)号：US20160164592A1
公开(公告)日：2016-06-09
申请号：US14996340
申请日：2016-01-15
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Neil McGowan , Marthinus Willem Da Silveira
IPC分类号： H04B7/06 , H04W88/08 , H04B1/04
CPC分类号： H04B1/38 , H03F1/34 , H03F3/24 , H04B1/0458 , H04B1/0483 , H04B1/18 , H04B2001/0433
摘要： Embodiments of a hybrid unit that supports a configurable number of radio units for a base station in a cellular communications network and embodiments of Distributed Digitally Convertible Radio Units (DDCRUs) for use with the hybrid unit are disclosed. In one embodiment, a hybrid unit for a base station in a cellular communications network is provided. The hybrid unit includes an analog hybrid matrix. The analog hybrid matrix includes a number of feeder ports operative to connect to at least one radio unit and up to a number of radio units that are external to and separate from the hybrid unit. In one preferred embodiment, the radio unit(s) is(are) DDCRU(s). The analog hybrid matrix also includes a number of antenna ports operative to connect to at least one and up to a corresponding number of antennas of the base station.
摘要翻译：公开了支持用于蜂窝通信网络中的基站的可配置数量的无线电单元和用于混合单元的分布式数字可转换无线电单元（DDCRU）的实施例的混合单元的实施例。在一个实施例中，提供了一种用于蜂窝通信网络中的基站的混合单元。混合单元包括模拟混合矩阵。模拟混合矩阵包括多个馈送端口，其可操作以连接至少一个无线电单元以及多达多个在混合单元外部和与混合单元分离的无线电单元。在一个优选实施例中，无线电单元是一个（或多个）DDCRU。模拟混合矩阵还包括可操作地连接到基站的至少一个和多达相应数量的天线的多个天线端口。

2. 发明申请

US20150215951A1 ANTENNA ARRAY CALIBRATION USING TRAFFIC SIGNALS 有权
标题翻译：使用交通信号的天线阵列校准
公开(公告)号：US20150215951A1
公开(公告)日：2015-07-30
申请号：US14678045
申请日：2015-04-03
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： Neil McGowan , Marthinus Willem Da Silveira , Tan Ho
IPC分类号： H04W72/08 , H04B17/12 , H04W72/04
CPC分类号： H04W72/082 , H04B7/06 , H04B17/12 , H04L25/03949 , H04W72/044 , H04W72/0446 , H04W88/08
摘要： A calibration method for a base station removes distortion in traffic signals incurred in transmit paths of the base station. The transmit paths are coupled to an antenna array for transmitting the traffic signals in a wireless network. The method includes conditioning a traffic signal to reduce a correlation with another traffic signal before the traffic signals enter the transmit paths. For each of the traffic signals, an impairment estimation is performed based on the traffic signals captured before entering the transmit paths and the traffic signals captured before entering the antenna array. An approximate inverse of the impairment estimation is applied to each of the traffic signals before the traffic signals enter the transmit paths.
摘要翻译：用于基站的校准方法消除了在基站的发送路径中产生的业务信号中的失真。发射路径耦合到天线阵列，用于在无线网络中传输业务信号。该方法包括对业务信号进行调理，以减少与业务信号进入发射路径之前的另一业务信号的相关性。对于每个交通信号，基于在进入发射路径之前捕获的业务信号和在进入天线阵列之前捕获的业务信号来执行损伤估计。在交通信号进入发送路径之前，对每个交通信号应用损伤估计的近似逆。

3. 发明授权

US09648630B2 Antenna array calibration using traffic signals 有权
公开(公告)号：US09648630B2
公开(公告)日：2017-05-09
申请号：US14678045
申请日：2015-04-03
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： Neil McGowan , Marthinus Willem Da Silveira , Tan Ho
IPC分类号： H04W72/08 , H04B17/12 , H04W72/04 , H04L25/03 , H04B7/06 , H04W88/08
CPC分类号： H04W72/082 , H04B7/06 , H04B17/12 , H04L25/03949 , H04W72/044 , H04W72/0446 , H04W88/08
摘要： A calibration method for a base station removes distortion in traffic signals incurred in transmit paths of the base station. The transmit paths are coupled to an antenna array for transmitting the traffic signals in a wireless network. The method includes conditioning a traffic signal to reduce a correlation with another traffic signal before the traffic signals enter the transmit paths. For each of the traffic signals, an impairment estimation is performed based on the traffic signals captured before entering the transmit paths and the traffic signals captured before entering the antenna array. An approximate inverse of the impairment estimation is applied to each of the traffic signals before the traffic signals enter the transmit paths.

4. 发明授权

US09240813B2 Distributed digitally convertible radio (DDCR) 有权
标题翻译：分布式数字可转换无线电（DDCR）
公开(公告)号：US09240813B2
公开(公告)日：2016-01-19
申请号：US13705704
申请日：2012-12-05
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Neil McGowan , Marthinus Willem Da Silveira
IPC分类号： H04W88/08 , H04B1/04 , H04B1/38 , H04B1/18
CPC分类号： H04B1/38 , H03F1/34 , H03F3/24 , H04B1/0458 , H04B1/0483 , H04B1/18 , H04B2001/0433
摘要： Embodiments of a hybrid unit that supports a configurable number of radio units for a base station in a cellular communications network and embodiments of Distributed Digitally Convertible Radio Units (DDCRUs) for use with the hybrid unit are disclosed. In one embodiment, a hybrid unit for a base station in a cellular communications network is provided. The hybrid unit includes an analog hybrid matrix. The analog hybrid matrix includes a number of feeder ports operative to connect to at least one radio unit and up to a number of radio units that are external to and separate from the hybrid unit. In one preferred embodiment, the radio unit(s) is(are) DDCRU(s). The analog hybrid matrix also includes a number of antenna ports operative to connect to at least one and up to a corresponding number of antennas of the base station.
摘要翻译：公开了支持用于蜂窝通信网络中的基站的可配置数量的无线电单元和用于混合单元的分布式数字可转换无线电单元（DDCRU）的实施例的混合单元的实施例。在一个实施例中，提供了一种用于蜂窝通信网络中的基站的混合单元。混合单元包括模拟混合矩阵。模拟混合矩阵包括多个馈送端口，其可操作以连接至少一个无线电单元以及多达多个在混合单元外部和与混合单元分离的无线电单元。在一个优选实施例中，无线电单元是一个（或多个）DDCRU。模拟混合矩阵还包括可操作地连接到基站的至少一个和多达相应数量的天线的多个天线端口。

5. 发明授权

US09094254B2 Method and apparatus for antenna array calibration using traffic signals 有权
标题翻译：使用交通信号的天线阵列校准的方法和装置
公开(公告)号：US09094254B2
公开(公告)日：2015-07-28
申请号：US13894826
申请日：2013-05-15
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： Marthinus Willem Da Silveira , Neil McGowan
IPC分类号： H04Q7/00 , H04L25/03 , H04B17/12 , H04B7/06
CPC分类号： H04L25/03949 , H04B7/06 , H04B17/12
摘要： An antenna array of a base station is calibrated using outbound traffic signals. The outbound traffic signals are captured for use as reference signals before the outbound traffic signals enter transmit paths in a radio unit of the base station. The outbound traffic signals are captured for use as a feedback after the outbound traffic signals exit the transmit paths. Each of the reference signals is one of the outbound traffic signals to be transmitted. An impairment estimator estimates the impairment for each of the outbound traffic signals based on the feedback signal and the reference signals. For each transmit path, a set of weights of an all-pass filter is determined, where the all-pass filter has a frequency response that approximates the impairment estimation in an occupied frequency region where reference signal power is above a threshold. The set of weights is inversed to obtain equalizer taps for each of the transmit paths.
摘要翻译：使用出站交通信号对基站的天线阵列进行校准。在出站业务信号在基站的无线电单元中进入发送路径之前，出站的业务信号被捕获用作参考信号。出站交通信号在出站交通信号离开发送路径后被捕获用作反馈信号。每个参考信号是要发送的出站业务信号之一。减值估算器根据反馈信号和参考信号估计每个出站交通信号的减值。对于每个发送路径，确定全通滤波器的一组权重，其中全通滤波器具有近似在参考信号功率高于阈值的占用频率区域中的损害估计的频率响应。该组权重被反转以获得每个发送路径的均衡器抽头。

6. 发明申请

US20140133543A1 Method and Apparatus For Antenna Array Calibration Using Traffic Signals 有权
标题翻译：使用交通信号进行天线阵列校准的方法和装置
公开(公告)号：US20140133543A1
公开(公告)日：2014-05-15
申请号：US13894826
申请日：2013-05-15
申请人： Telefonaktiebolaget L M Ericsson (Publ)
发明人： Marthinus Willem Da Silveira , Neil McGowan
IPC分类号： H04L25/03
CPC分类号： H04L25/03949 , H04B7/06 , H04B17/12
摘要： An antenna array of a base station is calibrated using outbound traffic signals. The outbound traffic signals are captured for use as reference signals before the outbound traffic signals enter transmit paths in a radio unit of the base station. The outbound traffic signals are captured for use as a feedback after the outbound traffic signals exit the transmit paths. Each of the reference signals is one of the outbound traffic signals to be transmitted. An impairment estimator estimates the impairment for each of the outbound traffic signals based on the feedback signal and the reference signals. For each transmit path, a set of weights of an all-pass filter is determined, where the all-pass filter has a frequency response that approximates the impairment estimation in an occupied frequency region where reference signal power is above a threshold. The set of weights is inversed to obtain equalizer taps for each of the transmit paths.
摘要翻译：使用出站交通信号对基站的天线阵列进行校准。在出站业务信号在基站的无线电单元中进入发送路径之前，出站的业务信号被捕获用作参考信号。出站交通信号在出站交通信号离开发送路径后被捕获用作反馈信号。每个参考信号是要发送的出站业务信号之一。减值估算器根据反馈信号和参考信号估计每个出站交通信号的减值。对于每个发送路径，确定全通滤波器的一组权重，其中全通滤波器具有近似在参考信号功率高于阈值的占用频率区域中的损害估计的频率响应。该组权重被反转以获得每个发送路径的均衡器抽头。

7. 发明授权

US10050655B2 Distributed digitally convertible radio (DDCR) 有权
公开(公告)号：US10050655B2
公开(公告)日：2018-08-14
申请号：US14996340
申请日：2016-01-15
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Neil McGowan , Marthinus Willem Da Silveira
IPC分类号： H04B1/04 , H04B1/38 , H03F1/34 , H03F3/24 , H04B1/18
摘要： Embodiments of a hybrid unit that supports a configurable number of radio units for a base station in a cellular communications network and embodiments of Distributed Digitally Convertible Radio Units (DDCRUs) for use with the hybrid unit are disclosed. In one embodiment, a hybrid unit for a base station in a cellular communications network is provided. The hybrid unit includes an analog hybrid matrix. The analog hybrid matrix includes a number of feeder ports operative to connect to at least one radio unit and up to a number of radio units that are external to and separate from the hybrid unit. In one preferred embodiment, the radio unit(s) is(are) DDCRU(s). The analog hybrid matrix also includes a number of antenna ports operative to connect to at least one and up to a corresponding number of antennas of the base station.

8. 发明申请

US20150244440A1 SCALABLE ESTIMATION RING 有权
标题翻译：可量测估计
公开(公告)号：US20150244440A1
公开(公告)日：2015-08-27
申请号：US14191005
申请日：2014-02-26
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Marthinus Willem Da Silveira , Neil McGowan , Slim Ben Ghalba
IPC分类号： H04B7/06 , H04L25/02
CPC分类号： H04L25/0212 , H04B17/12 , H04B17/14 , H04B17/373 , H04L25/0204 , H04L25/0224 , H04L25/0228 , H04L25/024 , H04W88/08
摘要： Systems and methods are disclosed for estimating impulse responses of multiple channels, e.g., multiple antenna sub-array paths of a base station, in a distributed manner. In one embodiment, a method of operation of a Scalable Estimation Ring (SER) processing component in a SER that operates to estimate impulse responses of corresponding channels is provided. In one embodiment, the method includes, during a first iteration of the SER, receiving a feedback signal for the SER processing component and computing an initial estimate of an impulse response of a corresponding channel based on the feedback signal, removing a contribution of the corresponding channel from the feedback signal based on the initial estimate of the impulse response of the corresponding channel to thereby provide a feedback signal for a next SER processing component in the SER, and outputting the feedback signal for the next SER processing component in the SER.
摘要翻译：公开了用于以分布式方式估计多个信道（例如，基站的多个天线子阵列路径）的脉冲响应的系统和方法。在一个实施例中，提供了一种操作SER中的可扩展估计环（SER）处理组件的操作方法，其用于估计相应通道的脉冲响应。在一个实施例中，该方法包括在SER的第一次迭代期间，接收针对SER处理组件的反馈信号，并且基于该反馈信号计算对应信道的脉冲响应的初始估计，去除对应的基于对应信道的脉冲响应的初始估计，从反馈信号中提供反馈信号，从而为SER中的下一个SER处理组件提供反馈信号，并输出SER中的下一个SER处理组件的反馈信号。

9. 发明授权

US09270493B2 Scalable estimation ring 有权
标题翻译：可扩展估计环
公开(公告)号：US09270493B2
公开(公告)日：2016-02-23
申请号：US14191005
申请日：2014-02-26
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Marthinus Willem Da Silveira , Neil McGowan , Slim Ben Ghalba
IPC分类号： H04M1/00 , H04L25/02 , H04B17/12 , H04B17/14 , H04W88/08 , H04B17/373
CPC分类号： H04L25/0212 , H04B17/12 , H04B17/14 , H04B17/373 , H04L25/0204 , H04L25/0224 , H04L25/0228 , H04L25/024 , H04W88/08
摘要： Systems and methods are disclosed for estimating impulse responses of multiple channels, e.g., multiple antenna sub-array paths of a base station, in a distributed manner. In one embodiment, a method of operation of a Scalable Estimation Ring (SER) processing component in a SER that operates to estimate impulse responses of corresponding channels is provided. In one embodiment, the method includes, during a first iteration of the SER, receiving a feedback signal for the SER processing component and computing an initial estimate of an impulse response of a corresponding channel based on the feedback signal, removing a contribution of the corresponding channel from the feedback signal based on the initial estimate of the impulse response of the corresponding channel to thereby provide a feedback signal for a next SER processing component in the SER, and outputting the feedback signal for the next SER processing component in the SER.
摘要翻译：公开了用于以分布式方式估计多个信道（例如，基站的多个天线子阵列路径）的脉冲响应的系统和方法。在一个实施例中，提供了一种操作SER中的可扩展估计环（SER）处理组件的操作方法，其用于估计相应通道的脉冲响应。在一个实施例中，该方法包括在SER的第一次迭代期间，接收针对SER处理组件的反馈信号，并且基于该反馈信号计算对应信道的脉冲响应的初始估计，去除对应的基于对应信道的脉冲响应的初始估计，从反馈信号中提供反馈信号，从而为SER中的下一个SER处理组件提供反馈信号，并输出SER中的下一个SER处理组件的反馈信号。

10. 发明申请

US20140153666A1 DISTRIBUTED DIGITALLY CONVERTIBLE RADIO (DDCR) 有权
标题翻译：分布式数字可转换无线电（DDCR）
公开(公告)号：US20140153666A1
公开(公告)日：2014-06-05
申请号：US13705704
申请日：2012-12-05
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： Neil McGowan , Marthinus Willem Da Silveira
IPC分类号： H04W88/08 , H04L27/06
CPC分类号： H04B1/38 , H03F1/34 , H03F3/24 , H04B1/0458 , H04B1/0483 , H04B1/18 , H04B2001/0433
摘要： Embodiments of a hybrid unit that supports a configurable number of radio units for a base station in a cellular communications network and embodiments of Distributed Digitally Convertible Radio Units (DDCRUs) for use with the hybrid unit are disclosed. In one embodiment, a hybrid unit for a base station in a cellular communications network is provided. The hybrid unit includes an analog hybrid matrix. The analog hybrid matrix includes a number of feeder ports operative to connect to at least one radio unit and up to a number of radio units that are external to and separate from the hybrid unit. In one preferred embodiment, the radio unit(s) is(are) DDCRU(s). The analog hybrid matrix also includes a number of antenna ports operative to connect to at least one and up to a corresponding number of antennas of the base station.
摘要翻译：公开了支持用于蜂窝通信网络中的基站的可配置数量的无线电单元和用于混合单元的分布式数字可转换无线电单元（DDCRU）的实施例的混合单元的实施例。在一个实施例中，提供了一种用于蜂窝通信网络中的基站的混合单元。混合单元包括模拟混合矩阵。模拟混合矩阵包括多个馈送端口，其可操作以连接至少一个无线电单元以及多达多个在混合单元外部和与混合单元分离的无线电单元。在一个优选实施例中，无线电单元是一个（或多个）DDCRU。模拟混合矩阵还包括可操作地连接到基站的至少一个和多达相应数量的天线的多个天线端口。

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