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1. 发明授权

US08218684B2 Method and system for an adaptive automatic gain control (AGC) reference for HSDPA and WCDMA 有权
标题翻译：用于HSDPA和WCDMA的自适应自动增益控制（AGC）参考的方法和系统
公开(公告)号：US08218684B2
公开(公告)日：2012-07-10
申请号：US12260669
申请日：2008-10-29
申请人： Li Fung Chang , Nelson Sollenberger , Abhinav Prasad
发明人： Li Fung Chang , Nelson Sollenberger , Abhinav Prasad
IPC分类号： H04L27/00
CPC分类号： H03G3/005 , H03G3/3052 , H04J13/0044
摘要： In a method and system for an adaptive automatic gain control (AGC) reference for HSDPA and WCDMA, A RF receiver, comprising a RF front-end, may receive a signal comprising a pilot signal via WCDMA or HSDPA. The operation mode of the RF front-end of the RF receiver may be determined based on the received signal components such as a HS-PDCH, a HS-SCCH, and/or a CPICH. The received signal strength information (RSSI) of the received signal may be determined from the output of a matched filter within the RF receiver. A true RSSI, which may be indicated by the received signal code power (RSCP), may be determined based on the pilot symbols over the CPICH. The operation mode determined for the receiver's RF front-end, the determined RSSI, and the determined CPICH_RSCP, may be provided as inputs to an automatic-gain-control (AGC) loop or circuit within the receiver front-end.
摘要翻译：在用于HSDPA和WCDMA的自适应自动增益控制（AGC）参考的方法和系统中，包括RF前端的RF接收机可以经由WCDMA或HSDPA接收包括导频信号的信号。可以基于诸如HS-PDCH，HS-SCCH和/或CPICH的接收信号分量来确定RF接收机的RF前端的操作模式。接收信号的接收信号强度信息（RSSI）可以根据RF接收机内的匹配滤波器的输出来确定。可以由接收信号码功率（RSCP）指示的真实RSSI可以基于CPICH上的导频符号来确定。为接收机的RF前端确定的操作模式，所确定的RSSI和确定的CPICH_RSCP可以被提供为接收机前端内的自动增益控制（AGC）回路或电路的输入。

2. 发明申请

US20090180456A1 METHOD AND SYSTEM FOR ADAPTIVE QUANTIZATION STEPS FOR HS-SCCH DECODING USING AVERAGE CQI 审中-公开
标题翻译：用于使用平均CQI的HS-SCCH解码的自适应量化步骤的方法和系统
公开(公告)号：US20090180456A1
公开(公告)日：2009-07-16
申请号：US12260647
申请日：2008-10-29
申请人： Khoi Ly , Abhinav Prasad , Nelson Sollenberger , Li Fung Chang , Jun Wu
发明人： Khoi Ly , Abhinav Prasad , Nelson Sollenberger , Li Fung Chang , Jun Wu
IPC分类号： H04B7/216
CPC分类号： H04L25/067 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0039 , H04L1/0046 , H04L1/0054
摘要： Aspects of a method and system for adaptive quantization steps for HS-SCCH decoding using average CQI are provided. A HS-SCCH in a received HSDPA signal may be adaptively quantized before HS-SCCH decoding occurs. Quantization information may be determined based on a CQI value associated with the HS-PDSCH. A preferred soft bit precision and quantization geometry, which associated with the quantization information, for the given soft bit precision may be determined based on the CQI value. The received HS-SCCH data may be truncated with the determined soft bit precision in the determined quantization geometry, accordingly. A look-up table, which may comprise the mappings between CQI and quantization step information, may be used for selecting quantization step sizes in HS-SCCH quantizing in order to, for example, lower the complexity in HS-SCCH quantizing.
摘要翻译：提供了使用平均CQI进行HS-SCCH解码的自适应量化步骤的方法和系统的方面。在HS-SCCH解码发生之前，接收的HSDPA信号中的HS-SCCH可被自适应量化。可以基于与HS-PDSCH相关联的CQI值来确定量化信息。可以基于CQI值来确定与给定软比特精度相关的量化信息的优选软比特精度和量化几率。相应地，所确定的量化几何中可以用所确定的软比特精度来截断所接收的HS-SCCH数据。可以使用包括CQI和量化步长信息之间的映射的查找表来选择HS-SCCH量化中的量化步长，以便例如降低HS-SCCH量化中的复杂度。

3. 发明申请

US20090180455A1 METHOD AND SYSTEM FOR CQI BASED ADAPTIVE DIAGONAL LOADING FOR DMI-EQ IN HSDPA RECEIVERS 审中-公开
标题翻译：用于基于CQI的自适应对角线负载的方法和系统用于HSDPA接收机中的DMI-EQ
公开(公告)号：US20090180455A1
公开(公告)日：2009-07-16
申请号：US12260591
申请日：2008-10-29
申请人： Mukundan Ranganathan , Li Fung Chang , Abhinav Prasad , Nelson Sollenberger , Jun Wu
发明人： Mukundan Ranganathan , Li Fung Chang , Abhinav Prasad , Nelson Sollenberger , Jun Wu
IPC分类号： H04B7/216
CPC分类号： H04L25/03044 , H04L25/0244 , H04L2025/0342 , H04L2025/03802
摘要： Aspects of a method and system for CQI based adaptive diagonal loading for DMI-EQ in HSDPA receivers. A HSDPA enabled handset may comprise a minimum-mean-square (MMSE)-based direct matrix inversion (DMI) equalizer (DMI-EQ) for an advanced signal processing. The DMI-EQ may receive HSDPA signal in consecutive transmission time intervals (TTIs). A diagonal loaded DMI may be used for a robust solution of equalizer weights. The DMI diagonal loading coefficients may be determined based on the CQI value of the current TTI and apply to the DMI-EQ for the next TTI. The determined CQI may be derived from SNR information estimated via a reference signal in the received signal. A look-up table mechanism is provided to select a set of DMI diagonal coefficients for a determined CQI and a particular modulation type. The look-up table may comprise mappings between the CQI for a particular modulation type and various DMI diagonal coefficients.
摘要翻译： HSDPA接收机中用于DMI-EQ的基于CQI的自适应对角线加载的方法和系统的方面。支持HSDPA的手机可以包括用于高级信号处理的基于最小均方（MMSE）的直接矩阵反转（DMI）均衡器（DMI-EQ）。 DMI-EQ可以在连续的传输时间间隔（TTI）中接收HSDPA信号。对角线加载的DMI可以用于均衡器权重的鲁棒解。可以基于当前TTI的CQI值来确定DMI对角线加载系数，并将其应用于下一个TTI的DMI-EQ。所确定的CQI可以从经由接收信号中的参考信号估计的SNR信息导出。提供查找表机制来选择用于所确定的CQI和特定调制类型的一组DMI对角系数。查找表可以包括用于特定调制类型的CQI和各种DMI对角系数之间的映射。

4. 发明申请

US20090180578A1 METHOD AND SYSTEM FOR AN ADAPTIVE AUTOMATIC GAIN CONTROL (AGC) REFERENCE FOR HSDPA AND WCDMA 有权
标题翻译：用于HSDPA和WCDMA的自适应自动增益控制（AGC）参考的方法和系统
公开(公告)号：US20090180578A1
公开(公告)日：2009-07-16
申请号：US12260669
申请日：2008-10-29
申请人： Li Fung Chang , Nelson Sollenberger , Abhinav Prasad
发明人： Li Fung Chang , Nelson Sollenberger , Abhinav Prasad
IPC分类号： H04L27/08
CPC分类号： H03G3/005 , H03G3/3052 , H04J13/0044
摘要： In a method and system for an adaptive automatic gain control (AGC) reference for HSDPA and WCDMA, A RF receiver, comprising a RF front-end, may receive a signal comprising a pilot signal via WCDMA or HSDPA. The operation mode of the RF front-end of the RF receiver may be determined based on the received signal components such as a HS-PDCH, a HS-SCCH, and/or a CPICH. The received signal strength information (RSSI) of the received signal may be determined from the output of a matched filter within the RF receiver. A true RSSI, which may be indicated by the received signal code power (RSCP), may be determined based on the pilot symbols over the CPICH. The operation mode determined for the receiver's RF front-end, the determined RSSI, and the determined CPICH_RSCP, may be provided as inputs to an automatic-gain-control (AGC) loop or circuit within the receiver front-end.
摘要翻译：在用于HSDPA和WCDMA的自适应自动增益控制（AGC）参考的方法和系统中，包括RF前端的RF接收机可以经由WCDMA或HSDPA接收包括导频信号的信号。可以基于诸如HS-PDCH，HS-SCCH和/或CPICH的接收信号分量来确定RF接收机的RF前端的操作模式。接收信号的接收信号强度信息（RSSI）可以根据RF接收机内的匹配滤波器的输出来确定。可以由接收信号码功率（RSCP）指示的真实RSSI可以基于CPICH上的导频符号来确定。为接收机的RF前端确定的操作模式，所确定的RSSI和确定的CPICH_RSCP可以被提供为接收机前端内的自动增益控制（AGC）回路或电路的输入。

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