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1. 发明授权

US6009129A Device and method for detection and reduction of intermodulation distortion 失效
标题翻译：用于检测和减少互调失真的装置和方法
公开(公告)号：US6009129A
公开(公告)日：1999-12-28
申请号：US808601
申请日：1997-02-28
申请人： Thomas J. Kenney , Ilkka Niva , Steven D. Gray , Joe Dowling
发明人： Thomas J. Kenney , Ilkka Niva , Steven D. Gray , Joe Dowling
IPC分类号： H04B1/10
CPC分类号： H04B1/7102 , H04B1/1027
摘要： In the front end of a CDMA cellular or broadband PCS mobile phone receiver, a switched bypass connection is provided to bypass the low noise amplifier, sending the received signal through an amplifier bypass connection. The amplifier bypass connection may include an attenuator. The switched bypass is activated by a control signal generated by a digital signal processor. The digital signal processor analyzes the received signal to detect and determine the relative contribution of the IMD interference to the total received signal power and, when the IMD interference exceeds a predetermined level, sends a control signal to bypass the low noise amplifier. Identification of the presence of IMD interference is by spectral estimation to discern when the mobile phone is in the presence of large near-band signals from an AMPS or other narrow-band base station which causes in-band IMD. In a preferred embodiment, the spectral estimation is performed by collecting a series of data samples from the received signal and, using a digital signal processor (DSP), computing a Discrete Fourier Transform (DFT) to generate frequency domain data, passing the data through a filter bank, then using a decision algorithm to determine whether or not there is sufficient IMD present in the received signal to bypass the LNA. If the IMD level is high enough to warrant bypass of the LNA, the DSP will provide a signal to an automatic gain control (AGC) block for controlling a variable gain amplifier (VGA) to compensate for gain loss due to bypass of the LNA.
摘要翻译：在CDMA蜂窝或宽带PCS移动电话接收机的前端，提供开关旁路连接以绕过低噪声放大器，通过放大器旁路连接发送接收的信号。放大器旁路连接可以包括衰减器。开关旁路由数字信号处理器产生的控制信号激活。数字信号处理器分析接收到的信号以检测并确定IMD干扰对总接收信号功率的相对贡献，并且当IMD干扰超过预定电平时，发送控制信号以绕过低噪声放大器。识别IMD干扰的存在是通过频谱估计来识别当移动电话在存在来自AMPS或其他导致带内IMD的其他窄带基站的大的近带信号的情况下。在优选实施例中，通过从接收到的信号收集一系列数据采样来执行频谱估计，并且使用数字信号处理器（DSP），计算离散傅立叶变换（DFT）来产生频域数据，将数据传递通过滤波器组，然后使用判定算法来确定接收到的信号中是否存在足够的IMD以绕过LNA。如果IMD电平足够高以保证LNA的旁路，则DSP将为自动增益控制（AGC）模块提供一个信号，用于控制可变增益放大器（VGA），以补偿由于LNA旁路引起的增益损失。

2. 发明公开

US20240251349A1 PRIORITY-BASED FRAME TRANSMISSION FOR TARGET WAKE-UP TIME (TWT) AGREEMENTS 审中-公开
公开(公告)号：US20240251349A1
公开(公告)日：2024-07-25
申请号：US18593448
申请日：2024-03-01
申请人： Laurent Cariou , Thomas J. Kenney
发明人： Laurent Cariou , Thomas J. Kenney
IPC分类号： H04W52/02 , H04W72/563 , H04W84/12
CPC分类号： H04W52/0216 , H04W72/563 , H04W84/12
摘要： An access point station (AP) configured for operation in a wireless local area network (WLAN) may establish a target wake-up time (TWT) agreement with a non-access point station (STA). The TWT agreement may comprise an unavailability period during which the STA is unavailable. During establishment of the TWT agreement, a priority threshold may be indicated by the STA. The AP may encode frames for transmission to the STA during a transmission opportunity (TXOP) established by the AP. The TXOP may begin prior to activation of the TWT agreement. The AP may continue to send the frames during the unavailability period of the TWT agreement when the unavailability period occurs during the TXOP and when a priority of the frames meets the priority threshold. When the priority of the frames does not meet the priority threshold, the AP may end the TXOP before the unavailability period and may refrain from sending frames to the STA during the unavailability period.

3. 发明公开

US20240205968A1 INITIAL CONTROL AND RESPONSE FRAMES 审中-公开
公开(公告)号：US20240205968A1
公开(公告)日：2024-06-20
申请号：US18593386
申请日：2024-03-01
申请人： Laurent Cariou , Thomas J. Kenney
发明人： Laurent Cariou , Thomas J. Kenney
IPC分类号： H04W74/0808 , H04L1/1607 , H04W84/12
CPC分类号： H04W74/0808 , H04L1/1635 , H04W84/12
摘要： Methods, apparatuses, and computer readable media for initial control and response frames, where an apparatus of an access point (AP) comprises processing circuitry configured to: encode, for transmission to a station (STA), an initial control frame comprising a transmission opportunity (TxOP) duration and information regarding the TxOP, and decode, from the STA, an initial control response frame, the initial control response frame comprising an availability of the STA during the TxOP. The STA may determine not to participate in the TxOP to operate on another radio. The AP may modify the parameters of the TxOP based on the initial control response frame received from the STA.

4. 发明公开

US20240040624A1 SECONDARY CHANNEL ACCESS 审中-公开
公开(公告)号：US20240040624A1
公开(公告)日：2024-02-01
申请号：US18378904
申请日：2023-10-11
申请人： Laurent Cariou , Dibakar Das , Dmitry Akhmetov , Thomas J. Kenney , Minyoung Park
发明人： Laurent Cariou , Dibakar Das , Dmitry Akhmetov , Thomas J. Kenney , Minyoung Park
IPC分类号： H04W74/08
CPC分类号： H04W74/0816 , H04W74/0866
摘要： Methods, apparatuses, and computer readable media for secondary channel access where an apparatus of an access point (AP) MLD, apparatus of a non-AP MLD, apparatus of a station (STA), or an apparatus of an AP comprises processing circuitry configured to: decode, from a primary channel, a first a physical layer (PHY) protocol data unit (PPDU), determine whether the PPDU is from an overlapping basic service set (OBSS), and in response to a determination that the PPDU is from the OBSS, perform an energy detection on a secondary channel. Different energy detection levels may be used than for the primary channel and the apparatus may wait a transition delay before performing the energy detection.

5. 发明申请

US20220116142A1 MECHANISMS FOR PERFORMING RATE MATCHING IN LOW-DENSITY PARITY CHECK (LPDC) CODES IN A WIRELESS NETWORK 有权
公开(公告)号：US20220116142A1
公开(公告)日：2022-04-14
申请号：US17645448
申请日：2021-12-21
申请人： Xiaogang Chen , Thomas J. Kenney , Qinghua Li , Hao Song , Robert Stacey
发明人： Xiaogang Chen , Thomas J. Kenney , Qinghua Li , Hao Song , Robert Stacey
IPC分类号： H04L1/00 , H04L5/00
摘要： This disclosure describes mechanisms for performing rate matching in low-density parity check (LPDC) codes in a wireless network. A device may generate an Aggregated Media Access (MAC) Protocol Data Unit (AMPDU) payload having an AMPDU payload size associated with a number of bits. The device may omit pre-Forward Error Correction (FEC) padding of the AMPDU payload at a MAC layer by indicating the AMPDU payload size in a physical layer (PHY)-specific preamble. The device may then generate the PHY-specific preamble comprising the AMPDU payload size without the pre-FEC padding. The device may also calculate a number of Orthogonal Frequency Division Multiplexing (OFDM) symbols for containing the number of bits and transmit the PHY-specific preamble and the number of OFDM symbols to a station device.

6. 发明申请

US20210258116A1 CHANNEL WIDTH, SPATIAL STREAMS, AND SHORT PACKET SIGNALING 有权
公开(公告)号：US20210258116A1
公开(公告)日：2021-08-19
申请号：US17313546
申请日：2021-05-06
申请人： Xiaogang Chen , Thomas J. Kenney , Shahrnaz Azizi , Robert J. Stacey , Laurent Cariou , Qinghua Li , Feng Jiang
发明人： Xiaogang Chen , Thomas J. Kenney , Shahrnaz Azizi , Robert J. Stacey , Laurent Cariou , Qinghua Li , Feng Jiang
IPC分类号： H04L5/00 , H04L1/00 , H04W84/12
摘要： Methods, apparatuses, and computer readable media include an apparatus of an access point (AP) or station (STA) comprising processing circuitry configured to decode a legacy preamble of a physical layer (PHY) protocol data unit (PPDU), determine whether the legacy preamble comprises an indication that the PPDU is an extremely-high throughput (EHT) PPDU, and in response to the determination indicating the PPDU is the EHT PPDU, decode the EHT PPDU. Some embodiments determine a spatial stream resource allocation based on a row of a spatial configuration table, a row of a frequency resource unit table, a number of stations, and location of the station relative to the number of stations in user fields of an EHT-signal (SIG) field. To accommodate 16 spatial streams, some embodiments extend the length of the packet extension field, extend signaling of a number of spatial streams, and/or extend a number of EHT-SIG symbols.

7. 发明申请

US20210111935A1 PACKET EXTENSION FOR EXTREMELY HIGH THROUGHPUT (EHT) TRIGGER FRAME 有权
公开(公告)号：US20210111935A1
公开(公告)日：2021-04-15
申请号：US17131468
申请日：2020-12-22
申请人： Xiaogang Chen , Qinghua Li , Thomas J. Kenney , Danny Alexander
发明人： Xiaogang Chen , Qinghua Li , Thomas J. Kenney , Danny Alexander
IPC分类号： H04L27/26 , H04W72/12
摘要： An apparatus of a station (STA) includes memory and processing circuitry coupled to the memory. The processing circuitry is configured to encode a capabilities element for transmission to an access point (AP). The capabilities element including a media access control (MAC) capabilities information field indicating a trigger frame MAC padding duration. The processing circuitry decodes an extremely high throughput (EHT) protocol data unit (PPDU) received in response to the capabilities element. The EHT PPDU includes an EHT trigger frame (EHT-TF) in a data portion of the EHT PPDU, a packet extension (PE) field, and a dummy orthogonal frequency division multiplexing (OFDM) symbol extending the PE field. The processing circuitry performs physical layer (PHY) and MAC processing of the EHT PPDU based on a duration of the dummy OFDM symbol.

8. 发明申请

US20200305024A1 EXTREME HIGH THROUGHPUT SIGNALING STRUCTURE 审中-公开
公开(公告)号：US20200305024A1
公开(公告)日：2020-09-24
申请号：US16894536
申请日：2020-06-05
申请人： Xiaogang Chen , Qinghua Li , Thomas J. Kenney , Feng Jiang , Laurent Cariou , Ziv Avital , Chen Kojokaro , Robert Stacey
发明人： Xiaogang Chen , Qinghua Li , Thomas J. Kenney , Feng Jiang , Laurent Cariou , Ziv Avital , Chen Kojokaro , Robert Stacey
IPC分类号： H04W28/06 , H04W76/10 , H04W72/04 , H04L5/00
摘要： This disclosure describes systems, methods, and devices related to an extreme high throughput (EHT) signaling structure. A device may establish a communication channel with one or more station devices (STAs). The device may generate an extreme high throughput signal field (EHT-SIG) of a header, wherein the EHT-SIG field comprises information associated with resource allocations (RUs). The device may generate a frame comprising the header. The device may assign a first RU to a first station device. The device may assign a second RU to the first station device, wherein the first RU or the second RU is an aggregation of a 26-tome RU and a neighboring RU. The device may cause to send the frame to the first station device.

9. 发明申请

US20200177425A1 CHANNEL WIDTH, SPATIAL STREAMS, AND SHORT PACKET SIGNALING 审中-公开
公开(公告)号：US20200177425A1
公开(公告)日：2020-06-04
申请号：US16783666
申请日：2020-02-06
申请人： Xiaogang Chen , Thomas J. Kenney , Shahrnaz Azizi , Robert J. Stacey , Laurent Cariou , Qinghua Li , Feng Jiang
发明人： Xiaogang Chen , Thomas J. Kenney , Shahrnaz Azizi , Robert J. Stacey , Laurent Cariou , Qinghua Li , Feng Jiang
IPC分类号： H04L27/26 , H04L1/00 , H04L5/00
摘要： Methods, apparatuses, and computer readable media include an apparatus of an access point (AP) or station (STA) comprising processing circuitry configured to decode a legacy preamble of a physical layer (PHY) protocol data unit (PPDU), determine whether the legacy preamble comprises an indication that the PPDU is an extremely-high throughput (EHT) PPDU, and in response to the determination indicating the PPDU is the EHT PPDU, decode the EHT PPDU. Some embodiments determine a spatial stream resource allocation based on a row of a spatial configuration table, a row of a frequency resource unit table, a number of stations, and location of the station relative to the number of stations in user fields of an EHT-signal (SIG) field. To accommodate 16 spatial streams, some embodiments extend the length of the packet extension field, extend signaling of a number of spatial streams, and/or extend a number of EHT-SIG symbols.

10. 发明申请

US20190261274A1 TRANSITION DELAY INDICATION 审中-公开
公开(公告)号：US20190261274A1
公开(公告)日：2019-08-22
申请号：US16404995
申请日：2019-05-07
申请人： Po-Kai Huang , Shahrnaz Azizi , Daniel Bravo , Noam Ginsburg , Thomas J. Kenney , Vinod Kristem
发明人： Po-Kai Huang , Shahrnaz Azizi , Daniel Bravo , Noam Ginsburg , Thomas J. Kenney , Vinod Kristem
IPC分类号： H04W52/02
摘要： This disclosure describes systems, methods, and devices related to delay indication. A device may identify a first frame received from a first station device, wherein the first frame comprises a first transition delay field, wherein the first transition delay field comprises a first transition delay value associated with a power state transition. The device may determine a wake up receiver (WUR) frame comprising an indication for waking up the main radio of the first station device. The device may cause to send the WUR frame to the first station device based on the first transition delay value.

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