-
1.发明授权公开(公告)号：US08082006B2
公开(公告)日：2011-12-20
申请号：US11914264
申请日：2005-12-19
摘要： A receiver of a wireless base station that uses a simple mode to detect a failure is provided, and an SW 201 switches whether an input port of the receiver 133 is to be connected with an antenna 114 or to be terminated. An LNA (a low noise amplifier) 205 amplifies an input signal with a low distortion. SWs 202 and 203 switch between a first path which runs through the LNA 205 and a second path 204 which does not run through the LNA 205. An AGC AMP, the gain of which is controlled such that the output thereof is constant, amplifies the signal with the controlled gain. A base station control section uses the SW 201 to terminate the input port of the receiver so that thermal noise is input to the LNA 205. Further, the SWs 202 and 203 are changed over to determine the normality of the receiver based on the fact that a first gain of an AGC-AMP 211 when connected to the first path, a second gain of the AGC-AMP 211 when connected to the second path, and a difference between the first and second gains fall within their respective predetermined ranges.
摘要翻译： 提供了使用简单模式来检测故障的无线基站的接收机，并且SW201切换接收机133的输入端口是否与天线114连接或被终止。 LNA（低噪声放大器）205以低失真放大输入信号。 SW 202和203在穿过LNA 205的第一路径和不穿过LNA 205的第二路径204之间切换。AGC AMP，其增益被控制使得其输出恒定，放大信号 具有可控增益。 基站控制部分使用SW 201终止接收机的输入端口，使得热噪声被输入到LNA 205.此外，SW 202和203被转换以基于以下事实来确定接收机的正常性： 连接到第一路径时AGC-AMP 211的第一增益，当连接到第二路径时AGC-AMP 211的第二增益，以及第一和第二增益之间的差落在它们各自的预定范围内。
-
2.发明申请公开(公告)号：US20090170560A1
公开(公告)日：2009-07-02
申请号：US11914264
申请日：2005-12-19
摘要： A receiver of a wireless base station that uses a simple mode to detect a failure is provided, and an SW 201 switches whether an input port of the receiver 133 is to be connected with an antenna 114 or to be terminated. An LNA (a low noise amplifier) 205 amplifies an input signal with a low distortion. SWs 202 and 203 switch between a first path which runs through the LNA 205 and a second path 204 which does not run through the LNA 205. An AGC AMP, the gain of which is controlled such that the output thereof is constant, amplifies the signal with the controlled gain. A base station control section uses the SW 201 to terminate the input port of the receiver so that thermal noise is input to the LNA 205. Further, the SWs 202 and 203 are changed over to determine the normality of the receiver based on the fact that a first gain of an AGC-AMP 211 when connected to the first path, a second gain of the AGC-AMP 211 when connected to the second path, and a difference between the first and second gains fall within their respective predetermined ranges.
摘要翻译： 提供了使用简单模式来检测故障的无线基站的接收机，并且SW 201切换接收机133的输入端口是否与天线114连接或被终止。 LNA（低噪声放大器）205以低失真放大输入信号。 SW 202和203在穿过LNA 205的第一路径和不穿过LNA 205的第二路径204之间切换。AGC AMP，其增益被控制使得其输出恒定，放大信号 具有可控增益。 基站控制部分使用SW 201终止接收机的输入端口，使得热噪声被输入到LNA 205.此外，SW 202和203被转换以基于以下事实来确定接收机的正常性： 连接到第一路径时AGC-AMP 211的第一增益，当连接到第二路径时AGC-AMP 211的第二增益，以及第一和第二增益之间的差落在它们各自的预定范围内。
-
公开(公告)号：US20110096865A1
公开(公告)日：2011-04-28
申请号：US12929083
申请日：2010-12-29
IPC分类号： H04L27/04
CPC分类号： H04L27/368 , H03F1/3247 , H03F1/3258
摘要： There is a need for effectively compensating distortion when a predistortion transmitter is subject to not only a memory effect due to nonlinearity of an amplifier, but also a modulator's DC offset, IQ unbalance, or local quadrature error. A predistortor to be used is a polynomial predistortor including a polynomial basis generation portion and an inner product calculation portion. The polynomial basis generation portion delays a real part and an imaginary part of a complex input signal Sx=Ix+jQx for up to M samples to generate 2(M+1) signals, duplicately combines these signals to generate monomials having maximum degree N, and outputs, as a basis vector, all or part of the monomials depending or needs. The inner product calculation portion performs an inner product calculation using a coefficient vector, i.e., a set of complex numbers sized equally to the basis vector to find a polynomial value and outputs the value as a complex signal.
-
公开(公告)号：US07995674B2
公开(公告)日：2011-08-09
申请号：US12929083
申请日：2010-12-29
CPC分类号： H04L27/368 , H03F1/3247 , H03F1/3258
摘要： There is a need for effectively compensating distortion when a predistortion transmitter is subject to not only a memory effect due to nonlinearity of an amplifier, but also a modulator's DC offset, IQ unbalance, or local quadrature error. A predistortor to be used is a polynomial predistortor including a polynomial basis generation portion and an inner product calculation portion. The polynomial basis generation portion delays a real part and an imaginary part of a complex input signal Sx=Ix+jQx for up to M samples to generate 2(M+1) signals, duplicately combines these signals to generate monomials having maximum degree N, and outputs, as a basis vector, all or part of the monomials depending or needs. The inner product calculation portion performs an inner product calculation using a coefficient vector, i.e., a set of complex numbers sized equally to the basis vector to find a polynomial value and outputs the value as a complex signal.
摘要翻译： 当预失真发射机不仅由于放大器的非线性而受到存储器影响，而且还涉及调制器的DC偏移，IQ不平衡或局部正交误差时，需要有效地补偿失真。 要使用的预失真器是包括多项式基础生成部分和内积计算部分的多项式预失真器。 多项式基产生部分将复数输入信号Sx = Ix + jQx的实部和虚部延迟最多M个样本以产生2（M + 1）个信号，将这些信号重复组合以产生具有最大度N的单项式， 并作为基本向量输出依赖或需要的全部或部分单项式。 内积计算部分使用系数向量，即与基矢量相等的一组复数来执行内积计算，以找到多项式值，并输出该值作为复信号。
-
公开(公告)号：US07864881B2
公开(公告)日：2011-01-04
申请号：US11703768
申请日：2007-02-08
IPC分类号： H04L25/49
CPC分类号： H04L27/368 , H03F1/3247 , H03F1/3258
摘要： There is a need for effectively compensating distortion when a predistortion transmitter is subject to not only a memory effect due to nonlinearity of an amplifier, but also a modulator's DC offset, IQ unbalance, or local quadrature error. A predistortor to be used is a polynomial predistortor including a polynomial basis generation portion and an inner product calculation portion. The polynomial basis generation portion delays a real part and an imaginary part of a complex input signal Sx=Ix+jQx for up to M samples to generate 2(M+1) signals, duplicately combines these signals to generate monomials having maximum degree N, and outputs, as a basis vector, all or part of the monomials depending or needs. The inner product calculation portion performs an inner product calculation using a coefficient vector, i.e., a set of complex numbers sized equally to the basis vector to find a polynomial value and outputs the value as a complex signal.
-
公开(公告)号：US20070237260A1
公开(公告)日：2007-10-11
申请号：US11703768
申请日：2007-02-08
IPC分类号： H04L25/49
CPC分类号： H04L27/368 , H03F1/3247 , H03F1/3258
摘要： There is a need for effectively compensating distortion when a predistortion transmitter is subject to not only a memory effect due to nonlinearity of an amplifier, but also a modulator's DC offset, IQ unbalance, or local quadrature error. A predistortor to be used is a polynomial predistortor including a polynomial basis generation portion and an inner product calculation portion. The polynomial basis generation portion delays a real part and an imaginary part of a complex input signal Sx=Ix+jQx for up to M samples to generate 2 (M+1) signals, duplicately combines these signals to generate monomials having maximum degree N, and outputs, as a basis vector, all or part of the monomials depending or needs. The inner product calculation portion performs an inner product calculation using a coefficient vector, i.e., a set of complex numbers sized equally to the basis vector to find a polynomial value and outputs the value as a complex signal.
摘要翻译： 当预失真发射机不仅由于放大器的非线性而受到存储器影响，而且还涉及调制器的DC偏移，IQ不平衡或局部正交误差时，需要有效地补偿失真。 要使用的预失真器是包括多项式基础生成部分和内积计算部分的多项式预失真器。 多项式基产生部分将复数输入信号Sx = Ix + jQx的实部和虚部延迟最多M个样本以产生2（M + 1）个信号，将这些信号重复组合以产生具有最大度N的单项式， 并作为基本向量输出依赖或需要的全部或部分单项式。 内积计算部分使用系数向量，即与基矢量相等的一组复数来执行内积计算，以找到多项式值，并输出该值作为复信号。
-
公开(公告)号：US07848745B2
公开(公告)日：2010-12-07
申请号：US12706145
申请日：2010-02-16
IPC分类号： H04W24/00
摘要： The normality verification and radio characteristics test of a radio communication system are executed. RF-SWs (radio-frequency coaxial switches) change-over the paths of signals which are transmitted to and received from an access terminal function portion included in an access point. RF-SWs connect the access terminal function portion 122 with a desired one of radio analog portions. A test function controller controls the changeover operations of the RF-SWs in accordance with information designated by a maintenance apparatus (OMC). An access point controller controls in accordance with received test sort information, one or more of (1) an antenna failure test, (2) a receiver failure test, and (3) a transmitter failure.
摘要翻译： 执行无线电通信系统的正常验证和无线电特性测试。 RF-SW（射频同轴交换机）转换发送到包括在接入点中的接入终端功能部分并从其接收的信号的路径。 RF-SW将接入终端功能部分122与期望的无线电模拟部分连接。 测试功能控制器根据由维护设备（OMC）指定的信息来控制RF-SW的切换操作。 接入点控制器根据接收的测试分类信息来控制（1）天线故障测试，（2）接收机故障测试和（3）发射机故障中的一个或多个。
-
公开(公告)号：US07366508B2
公开(公告)日：2008-04-29
申请号：US10910583
申请日：2004-08-04
IPC分类号： H04Q7/20
摘要： The normality verification and radio characteristics test of a radio communication system are executed. RF-SWs (radio-frequency coaxial switches) change-over the paths of signals which are transmitted to and received from an access terminal function portion included in an access point. RF-SWs connect the access terminal function portion 122 with a desired one of radio analog portions. A test function controller controls the changeover operations of the RF-SWs in accordance with information designated by a maintenance apparatus (OMC). An access point controller controls in accordance with received test soil information, one or more of (1) an antenna failure test in which a voltage surface wave ratio is evaluated on the basis of the transmission power of the access terminal function portion, (2) a receiver failure test in which, after a packet error rate has been adjusted, a reception sensitivity is evaluated based on the transmission power of the access terminal function portion, and (3) a transmitter failure test in which transmission power from any of the radio analog portions is evaluated based on the reception power value of the access terminal function portion.
摘要翻译： 执行无线电通信系统的正常验证和无线电特性测试。 RF-SW（射频同轴交换机）转换发送到包括在接入点中的接入终端功能部分并从其接收的信号的路径。 RF-SW将接入终端功能部分122与期望的无线电模拟部分连接。 测试功能控制器根据由维护设备（OMC）指定的信息来控制RF-SW的切换操作。 接入点控制器根据所接收的测试土壤信息来控制（1）基于接入终端功能部分的发射功率来评估电压面波比的天线故障测试中的一个或多个，（2） 接收机故障测试，其中在分组错误率被调整之后，基于接入终端功能部分的发送功率来评估接收灵敏度，以及（3）发射机故障测试，其中来自任何无线电的发射功率 基于接入终端功能部分的接收功率值来评估模拟部分。
-
公开(公告)号：US20050107080A1
公开(公告)日：2005-05-19
申请号：US10910583
申请日：2004-08-04
IPC分类号： H04M3/26 , H04B7/26 , H04B17/00 , H04B17/16 , H04B17/18 , H04B17/29 , H04W24/00 , H04W24/06 , H04Q7/20 , H04M11/00
摘要： The normality verification and radio characteristics test of a radio communication system are executed. RF-SWs (radio-frequency coaxial switches) 220 and 221 change-over the paths of signals which are transmitted to and received from an access terminal function portion 122 included in an access point 100. RF-SWs 222-224 connect the access terminal function portion 122 with a desired one of radio analog portions 210-212. A test function controller 217 controls the changeover operations of the RF-SWs 220-224 in accordance with information designated by a maintenance apparatus (OMC). An access point controller 216 controls in accordance with received test sort information, one or more of (1) an antenna failure test in which a voltage surface wave ratio is evaluated on the basis of the transmission power of the access terminal function portion 122, (2) a receiver failure test in which, after a packet error rate has been adjusted, a reception sensitivity is evaluated on the basis of the transmission power of the access terminal function portion 122, and (3) a transmitter failure test in which transmission power from any of the radio analog portions 210-212 is evaluated on the basis of the reception power value of the access terminal function portion 122.
摘要翻译： 执行无线电通信系统的正常验证和无线电特性测试。 RF-SW（射频同轴开关）220和221转换发送到接入点100中包括的接入终端功能部分122并从其接收的信号的路径。 RF-SW 222-224将接入终端功能部分122与期望的一个无线电模拟部分210-212连接。 测试功能控制器217根据由维护设备（OMC）指定的信息来控制RF-SW 220-224的切换操作。 接入点控制器216根据接收的测试分类信息进行控制，其中（1）根据接入终端功能部分122的发射功率来评估电压面波比的天线故障测试中的一个或多个（ 2）接收机故障测试，其中在分组错误率被调整之后，基于接入终端功能部分122的发射功率来评估接收灵敏度，以及（3）发射机故障测试，其中传输功率 基于接入终端功能部分122的接收功率值来评估来自任何无线电模拟部分210-212的信号。
-
公开(公告)号：US20080160919A1
公开(公告)日：2008-07-03
申请号：US12073382
申请日：2008-03-05
IPC分类号： H04B17/00
摘要： The normality verification and radio characteristics test of a radio communication system are executed. RF-SWs (radio-frequency coaxial switches) change-over the paths of signals which are transmitted to and received from an access terminal function portion included in an access point. RF-SWs connect the access terminal function portion 122 with a desired one of radio analog portions. A test function controller controls the changeover operations of the RF-SWs in accordance with information designated by a maintenance apparatus (OMC). An access point controller controls in accordance with received test sort information, one or more of (1) an antenna failure test, (2) a receiver failure test, and (3) a transmitter failure.
摘要翻译： 执行无线电通信系统的正常验证和无线电特性测试。 RF-SW（射频同轴交换机）转换发送到包括在接入点中的接入终端功能部分并从其接收的信号的路径。 RF-SW将接入终端功能部分122与期望的无线电模拟部分连接。 测试功能控制器根据由维护设备（OMC）指定的信息来控制RF-SW的切换操作。 接入点控制器根据接收的测试分类信息来控制（1）天线故障测试，（2）接收机故障测试和（3）发射机故障中的一个或多个。
-
-
-
-
-
-
-
-
-
搜索结果
102 条记录 (耗时 0.026 秒)
