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公开(公告)号：US11510260B2
公开(公告)日：2022-11-22
申请号：US17001100
申请日：2020-08-24
Applicant: Cisco Technology, Inc.
Inventor： Pooya Monajemi , Brian Hart
IPC: H04W76/15 , H04W24/10 , H04L1/00 , H04B17/318 , H04B17/336
Abstract: A method is performed at a first multilink device configured to communicate wirelessly with a first radio and a second radio of a second multilink device. The method includes accessing a set of parameters for a known mathematical model that establishes a frequency separation to be imposed between transmission from the first radio and reception at the second radio in order to achieve a predetermined reception performance at the second radio when the transmission and the reception are simultaneous. The method further includes, using the known mathematical model, computing the frequency separation based on the set of parameters.
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公开(公告)号：US11323217B2
公开(公告)日：2022-05-03
申请号：US16804428
申请日：2020-02-28
Applicant: Cisco Technology, Inc.
Inventor： Brian Hart , David Kloper
Abstract: Presented herein is a tone plan that can accommodate multiple bandwidth options. This tone plan may be designed around a fundamental tile, such as 20 MHz tile, that is replicated to 40 and 80 MHz (and 160 MHz and beyond). For wider bandwidths, the otherwise-unused guard tones between the 20 MHz tiles are filled by a new resource unit and DC tones. There are DC tones placed to support any client, for all defined and plausible future values of its current operating bandwidth and center frequency (i.e. any 20 MHz, any 40 MHz, any 80 MHz, 160 MHz and 80+80 MHz, 320, 160+80 etc.), as well as plausible future preamble puncturing cases.
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公开(公告)号：US20240267852A1
公开(公告)日：2024-08-08
申请号：US18163448
申请日：2023-02-02
Applicant: Cisco Technology, Inc.
Inventor： Evgeny Yankevich , Brian Hart , Matt Silverman
CPC classification number: H04W52/265 , H04L5/0073 , H04W52/267
Abstract: Increased channel availability may be provided. A computing device may receive radio channel information comprising a radio channel to operate within and an incumbent indication indicating whether an incumbent is using the radio channel. Next, power to operate a radio at may be determined based on the incumbent indication. When the incumbent indication indicates an incumbent is present on the radio channel, determining the power to operate the radio based on the incumbent indication comprises: i) determining a first power level for subcarriers in the radio channel that are non-overlapping with a portion of the radio channel used by the incumbent; and ii) determining a second power level for subcarriers in the radio channel that are overlapping with the portion of the radio channel used by the incumbent wherein the first power level is greater than the second power level. The radio may then be operated at the determined power.
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14.发明授权公开(公告)号：US11621798B2
公开(公告)日：2023-04-04
申请号：US17389824
申请日：2021-07-30
Applicant: Cisco Technology, Inc.
Inventor： Brian Hart , Zhigang Gao
IPC: H04L1/00
Abstract: Preamble puncturing configuration information is encoded in a pad field, and alternatively or additionally, in a Service Field, depending on a transmission bandwidth of a Physical Layer Convergence Protocol (PLCP) Protocol Data Unit (PPDU). Some implementations also encode one or more parity bits in the pad field or Service field. The PPDU including the preamble puncturing configuration information encodes, in various embodiments, a request to send frame, a clear to send frame, a power save poll frame, or a contention free end frame.
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公开(公告)号：US20210266137A1
公开(公告)日：2021-08-26
申请号：US16801944
申请日：2020-02-26
Applicant: Cisco Technology, Inc.
Inventor： Pooya Monajemi , Brian Hart , Matthew Aaron Silverman , Gautam D. Bhanage
Abstract: A wireless access point device is full-duplex capable and serves wireless communication for at least first and second wireless client devices. The wireless access point device sends to the first wireless client device a trigger frame that causes the first wireless client device to send an uplink transmission to the wireless access point after a first time interval. The wireless access point device waits a second time interval after the first wireless client is expected to begin sending the uplink transmission. The wireless access point device receives the uplink transmission from the first wireless client device. After the second time interval, and while receiving the uplink transmission from the first wireless client device, the wireless access point device sends to the second wireless client device a downlink transmission that overlaps at least partially in frequency and time with the uplink transmission from the first wireless client device.
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Patent Agency Ranking
公开(公告)号：US20210112551A1
公开(公告)日：2021-04-15
申请号：US16845696
申请日：2020-04-10
Applicant: Cisco Technology, Inc.
Inventor： Fred J. Anderson , Anand Oswal , Rajesh S. Pazhyannur , Arun G. Khanna , Paul Jeffrey Stager , David Stuart Kloper , Brian Hart , Qing Zhao , Jie Cheng Jiang
IPC: H04W72/04
Abstract: Systems, methods, and computer-readable media for an integrated Wi-Fi Access Point and cellular network Radio Unit (RU) include a communication system interfacing with a wired network for communicating Wi-Fi traffic and cellular network traffic, the communication system integrating a Wi-Fi Access Point (AP) with a cellular network Radio Unit (RU). The Wi-Fi traffic and cellular network traffic can be processed in the communication system. The communication system can interface with at least one programmable Radio Frequency (RF) front end configured for wireless communication over one or more frequency bands for Wi-Fi traffic and one or more frequency bands for cellular network traffic (e.g., 5G, LTE, Wi-Fi).
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公开(公告)号：US20210092752A1
公开(公告)日：2021-03-25
申请号：US16576155
申请日：2019-09-19
Applicant: Cisco Technology Inc.
Inventor： Mukesh Taneja , Brian Hart , Sudhir Jain
IPC: H04W72/12
Abstract: A first wireless access point uses a first radio access technology in a heterogeneous wireless network. The heterogeneous wireless network includes the first wireless access point and a second wireless access point using a second radio access technology. The first wireless access point determines one or more performance characteristics of traffic management and traffic between a first client device and the first wireless access point using the first radio access technology and the second wireless access point using the second radio access technology. The first wireless device (access point or some other network device) calculates one or more traffic indicators based on these performance characteristics. The first wireless device further communicates at least one of the one or more traffic indicators to the second wireless access point. The communicated traffic indicators are for use by the second wireless access point to schedule radio resources of the second RAT.
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公开(公告)号：US20210083927A1
公开(公告)日：2021-03-18
申请号：US16571360
申请日：2019-09-16
Applicant: Cisco Technology Inc.
Inventor： Gautam Bhanage , Matthew Aaron Silverman , Pooya Monajemi , Brian Hart
Abstract: A method is provided in wireless access point in a wireless communications network. The method includes assigning a first resource unit for a first transmission between the wireless access point and a wireless terminal. The method further includes determining that the first transmission using the first resource unit failed. The method further includes selecting a candidate resource unit for a retry transmission. The candidate resource unit is selected based on at least an average previous success rate of available resource units at a width of the first resource unit and a correlation between the candidate resource unit and the first resource unit. The method further includes assigning the candidate resource unit for the retry transmission if a success rate of the candidate resource unit is above a predetermined threshold.
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公开(公告)号：US10938629B1
公开(公告)日：2021-03-02
申请号：US16571360
申请日：2019-09-16
Applicant: Cisco Technology Inc.
Inventor： Gautam Bhanage , Matthew Aaron Silverman , Pooya Monajemi , Brian Hart
Abstract: A method is provided in wireless access point in a wireless communications network. The method includes assigning a first resource unit for a first transmission between the wireless access point and a wireless terminal. The method further includes determining that the first transmission using the first resource unit failed. The method further includes selecting a candidate resource unit for a retry transmission. The candidate resource unit is selected based on at least an average previous success rate of available resource units at a width of the first resource unit and a correlation between the candidate resource unit and the first resource unit. The method further includes assigning the candidate resource unit for the retry transmission if a success rate of the candidate resource unit is above a predetermined threshold.
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20.发明申请公开(公告)号：US20160135080A1
公开(公告)日：2016-05-12
申请号：US14933056
申请日：2015-11-05
Applicant: Cisco Technology, Inc.
Inventor： Rajesh Pazhyannur , Brian Hart , Andrew Myles , Vikram Chandrasekhar
IPC: H04W28/04 , H04L12/26 , H04W72/04 , H04B17/318
CPC classification number: H04W28/04 , H04B17/318 , H04L43/16 , H04W16/14 , H04W72/044 , H04W74/0808 , H04W84/12
Abstract: Presented herein are mechanisms to reduce collisions in deployments with Wi-Fi and Shared Access LTE (SAC-LTE) equipment as well SAC-LTE equipment from multiple operators. The mechanisms enhance the baseline energy detection mechanism by incorporating methods to decode cross-technology physical layer elements and media access control (MAC) layer elements in the Wi-Fi system to elements in the SAC-LTE system. The methods described improve the detection potential for transmitters, thereby reducing chances of cross-technology collisions.
Abstract translation: 这里提出的是利用Wi-Fi和共享接入LTE（SAC-LTE）设备以及来自多个运营商的SAC-LTE设备来减少部署中的冲突的机制。 这些机制通过并入将Wi-Fi系统中的跨技术物理层元素和媒体访问控制（MAC）层元素解码为SAC-LTE系统中的元素的方法来增强基线能量检测机制。 所描述的方法提高了发射机的检测潜力，从而减少了跨技术冲突的机会。
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