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公开(公告)号：US20240364489A1
公开(公告)日：2024-10-31
申请号：US18643333
申请日：2024-04-23
发明人： Eric Scott SMITH
IPC分类号： H04L5/00 , H04W28/02 , H04W48/06 , H04W72/0453 , H04W72/54
CPC分类号： H04L5/0098 , H04L5/0073 , H04W28/0252 , H04W48/06 , H04W72/0453 , H04W72/54
摘要： A method and apparatus for managing communications in a wireless communication system such as a WiFi system, at an access point, are provided. Various measurements such as number of devices connected to the access point and using a wireless channel, number of devices not connected to the access point but contending for a wireless channel, proportion of time a wireless channel is in use, transmission quality of a wireless channel, interference due to wireless activity according to a process other than the protocol of the communication system, and interference due to wireless activity according to a different process, are made. Based on the measurements, decisions of how to partition a portion of spectrum into a number of channels as well as the number of channels, or decisions of whether to enable or disable such channels or portions of spectrum, are made.
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公开(公告)号：US09705715B2
公开(公告)日：2017-07-11
申请号：US14853688
申请日：2015-09-14
发明人： Manish Bhardwaj , Garret Shih
CPC分类号： H04L27/14 , H03G3/20 , H03G3/3036 , H04L5/06
摘要： Automatic Gain Control (AGC) system for multi-channel signals attenuates an incoming multi-channel signal by providing a gain. The system further adjusts each individual channel, of the multi-channel signal, by supplying a second gain if needed. The AGC system is designed to ensure a received signal power is at an optimal level for analog to digital conversion or any other form of signal processing. The system also enables elimination of mid-packet gain adjustments.
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3.发明授权Method and apparatus to track gain variation in orthogonal frequency division multiplexing (OFDM) systems 有权跟踪正交频分复用（OFDM）系统中增益变化的方法和装置公开(公告)号：US09338044B2
公开(公告)日：2016-05-10
申请号：US13781224
申请日：2013-02-28
发明人： Manish Bhardwaj , Garret Shih
CPC分类号： H04L27/366 , H04L5/0007 , H04L25/03159 , H04L27/261 , H04L27/2614 , H04L27/2647 , H04L27/265 , H04L27/34 , H04L69/22
摘要： Gain variations during a packet can lead to significant performance degradation in communications systems that use high order quadrature amplitude modulation (QAM). A method and the associated apparatus track such variations in an OFDM system and completely eliminate any performance degradation. Gain estimation and compensation is employed with the use of pilot subcarriers in the payload of an OFDM data packet. Estimated pilot magnitude ratios are averaged, throughout the processing life of a packet, to yield accurate gain estimations. A gain compensation factor is used to adjust data carriers. An exclusion method is also employed to eliminate pilot carriers which contribute to noise.
摘要翻译： 在使用高阶正交幅度调制（QAM）的通信系统中，分组期间的增益变化可能导致显着的性能下降。 一种方法和相关联的装置跟踪OFDM系统中的这种变化，并且完全消除任何性能下降。 在OFDM数据分组的有效载荷中使用导频子载波来采用增益估计和补偿。 在分组的整个处理寿命期间，估计的导频幅度比率被平均，以产生准确的增益估计。 增益补偿因子用于调整数据载体。 还采用排除方法来消除有助于噪声的导频载波。
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4.发明授权Automatic gain control (AGC) for multichannel/wideband communications system 有权用于多通道/宽带通信系统的自动增益控制（AGC）公开(公告)号：US09136811B2
公开(公告)日：2015-09-15
申请号：US13846285
申请日：2013-03-18
发明人： Manish Bhardwaj , Garret Shih
CPC分类号： H04L27/14 , H03G3/20 , H03G3/3036 , H04L5/06
摘要： Automatic Gain Control (AGC) system for multi-channel signals attenuates an incoming multi-channel signal by providing a gain. The system further adjusts each individual channel, of the multi-channel signal, by supplying a second gain if needed. The AGC system is designed to ensure a received signal power is at an optimal level for analog to digital conversion or any other form of signal processing. The system also enables elimination of mid-packet gain adjustments.
摘要翻译： 用于多通道信号的自动增益控制（AGC）系统通过提供增益来衰减输入的多通道信号。 如果需要，系统通过提供第二增益来进一步调整多信道信号的每个单独信道。 AGC系统旨在确保接收信号功率处于模数转换或任何其他形式的信号处理的最佳水平。 该系统还可以消除中间包增益调整。
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公开(公告)号：US20240364490A1
公开(公告)日：2024-10-31
申请号：US18643386
申请日：2024-04-23
发明人： Eric Scott SMITH
IPC分类号： H04L5/00 , H04W72/0453 , H04W72/542 , H04W84/12
CPC分类号： H04L5/0098 , H04W72/0453 , H04W72/542 , H04W84/12
摘要： A method and apparatus for managing communications in a wireless communication system such as a WiFi system, at an access point, are provided. Various measurements such as number of devices connected to the access point and using a wireless channel, number of devices not connected to the access point but contending for a wireless channel, proportion of time a wireless channel is in use, transmission quality of a wireless channel, interference due to wireless activity according to a process other than the protocol of the communication system, and interference due to wireless activity according to a different process, are made. Based on the measurements, decisions of how to partition a portion of spectrum into a number of channels as well as the number of channels, or decisions of whether to enable or disable such channels or portions of spectrum, are made.
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公开(公告)号：US10454749B2
公开(公告)日：2019-10-22
申请号：US15661885
申请日：2017-07-27
发明人： Manish Bhardwaj , Garret Shih
摘要： Gain variations during a packet can lead to significant performance degradation in communications systems that use high order quadrature amplitude modulation (QAM). A method and the associated apparatus track such variations in an OFDM system and completely eliminate any performance degradation. Gain estimation and compensation is employed with the use of pilot subcarriers in the payload of an OFDM data packet. Estimated pilot magnitude ratios are averaged, throughout the processing life of a packet, to yield accurate gain estimations. A gain compensation factor is used to adjust data carriers. An exclusion method is also employed to eliminate pilot carriers which contribute to noise.
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公开(公告)号：US10200223B2
公开(公告)日：2019-02-05
申请号：US15644071
申请日：2017-07-07
发明人： Manish Bhardwaj , Garret Shih
摘要： Automatic Gain Control (AGC) system for multi-channel signals attenuates an incoming multi-channel signal by providing a gain. The system further adjusts each individual channel, of the multi-channel signal, by supplying a second gain if needed. The AGC system is designed to ensure a received signal power is at an optimal level for analog to digital conversion or any other form of signal processing. The system also enables elimination of mid-packet gain adjustments.
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公开(公告)号：US20240365360A1
公开(公告)日：2024-10-31
申请号：US18643418
申请日：2024-04-23
发明人： Eric Scott SMITH
IPC分类号： H04W72/541 , H04W24/08 , H04W72/04
CPC分类号： H04W72/541 , H04W24/08 , H04W72/04
摘要： A method and apparatus for managing communications in a wireless communication system such as a WiFi system, at an access point, are provided. Various measurements such as number of devices connected to the access point and using a wireless channel, number of devices not connected to the access point but contending for a wireless channel, proportion of time a wireless channel is in use, transmission quality of a wireless channel, interference due to wireless activity according to a process other than the protocol of the communication system, and interference due to wireless activity according to a different process, are made. Based on the measurements, decisions of how to partition a portion of spectrum into a number of channels as well as the number of channels, or decisions of whether to enable or disable such channels or portions of spectrum, are made.
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公开(公告)号：US11356308B2
公开(公告)日：2022-06-07
申请号：US16806982
申请日：2020-03-02
发明人： Manish Bhardwaj , Garret Shih
摘要： Automatic Gain Control (AGC) system for multi-channel signals attenuates an incoming multi-channel signal by providing a gain. The system further adjusts each individual channel, of the multi-channel signal, by supplying a second gain if needed. The AGC system is designed to ensure a received signal power is at an optimal level for analog to digital conversion or any other form of signal processing. The system also enables elimination of mid-packet gain adjustments.
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公开(公告)号：US20210028964A1
公开(公告)日：2021-01-28
申请号：US16806982
申请日：2020-03-02
发明人： Manish Bhardwaj , Garret Shih
摘要： Automatic Gain Control (AGC) system for multi-channel signals attenuates an incoming multi-channel signal by providing a gain. The system further adjusts each individual channel, of the multi-channel signal, by supplying a second gain if needed. The AGC system is designed to ensure a received signal power is at an optimal level for analog to digital conversion or any other form of signal processing. The system also enables elimination of mid-packet gain adjustments.
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