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    FULL DUPLEX NETWORK ARCHITECTURE IN CABLE NETWORK ENVIRONMENTS
    11.
    发明申请
    FULL DUPLEX NETWORK ARCHITECTURE IN CABLE NETWORK ENVIRONMENTS 有权
    电缆网络环境中的全双工网络架构

    公开(公告)号：US20170019241A1

    公开(公告)日：2017-01-19

    申请号：US15052428

    申请日：2016-02-24

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Hang Jin ,  John T. Chapman

    IPC: H04L5/14 ,  H04B3/20

    CPC classification number: H04L5/1461 ,  H04B3/20 ,  H04L12/2801

    Abstract: An example communication system comprises a media access control (MAC) scheduler in a cable network, and a full band transceiver. The MAC scheduler implements a two-dimensional transmission-reception (T-R) coordination scheme among a plurality of cable modems in the cable network. According to the T-R coordination scheme, the cable modems are categorized into interference groups, such that no cable modem of any one interference group transmits upstream in a frequency range simultaneously as another cable modem in the same interference group receives downstream in the frequency range, facilitating full duplex communication in the cable network across the frequency range. The full band transceiver implements an adaptive interference cancellation scheme, which suppresses at a receiver of the respective component, a signal transmitted by a transmitter of the respective component. The communication system further includes a full band amplifier, implementing the adaptive interference cancellation scheme and a ringing suppression scheme with echo cancellation.

    Abstract translation: 示例性通信系统包括有线网络中的媒体接入控制（MAC）调度器和全频带收发机。 MAC调度器在有线网络中的多个有线调制解调器之间实现二维发送接收（T-R）协调方案。 根据TR协调方案，电缆调制解调器被分为干扰组，使得任何一个干扰组的电缆调制解调器在同一干扰组中的另一个电缆调制解调器在频率范围内接收下游的同时在频率范围内上行传输，有利于 全双工通信在有线网络中跨越频率范围。 全频带收发器实现自适应干扰消除方案，其在相应分量的接收机处抑制由相应分量的发射机发送的信号。 通信系统还包括全频带放大器，实现自适应干扰消除方案和具有回波消除的振铃抑制方案。

    PROVIDING ENHANCED CAPACITY FOR TENANTS IN A NEUTRAL HOST NETWORK VIA MULTI-CONNECTIVITY
    15.
    发明申请
    PROVIDING ENHANCED CAPACITY FOR TENANTS IN A NEUTRAL HOST NETWORK VIA MULTI-CONNECTIVITY 有权

    公开(公告)号：US20230034500A1

    公开(公告)日：2023-02-02

    申请号：US17403492

    申请日：2021-08-16

    Applicant: Cisco Technology, Inc.

    Inventor： Humberto Jose La Roche ,  John T. Chapman ,  Desmond Joseph O'Connor

    IPC: H04W76/15 ,  H04W28/02 ,  H04W72/04

    Abstract: The present technology is directed to providing enhanced capacity for tenants in a neutral host network (NHN) via multi-connectivity such as dual connectivity or carrier aggregation. The present technology can identify, at a small cell gateway, signaling traffic passing from an access network to a respective core network of an NHN operating at mid-band frequencies and add an interface between the small cell gateway of the NHN and a base station of a tenant network operating at low-band frequencies to establish dual connectivity. Furthermore, the present technology can establish a radio resource control (RRC) connection in a primary cell residing in a macro network operating at low-band frequencies and add, at a fronthaul gateway, one or more secondary cells in a small cell network operating at mid-band frequencies to enable carrier aggregation of the one or more secondary cells with the primary cell the small cell network.

    Waterfall granting
    16.
    发明授权
    Waterfall granting 有权

    公开(公告)号：US11038811B2

    公开(公告)日：2021-06-15

    申请号：US15983023

    申请日：2018-05-17

    Applicant: Cisco Technology, Inc.

    Inventor： John T. Chapman ,  Tong Liu

    IPC: H04L12/911 ,  H04L12/927 ,  H04L12/801 ,  H04L12/851 ,  H04L12/28 ,  H04L12/863 ,  H04N21/61

    Abstract: Waterfall granting may be provided. First, a plurality of grants may be received for a service flow. Then a first plurality of packets may be placed in a first queue associated with the service flow in response to determining that the first plurality of packets corresponding to the service flow are associated with a first quality of service level. Next, a second plurality of packets may be placed in a second queue associated with the service flow in response to determining that the second plurality of packets corresponding to the service flow are associated with a second quality of service level. The first plurality of packets in the first queue may then be serviced from the plurality of grants until all the first plurality of packets in the first queue are serviced before servicing any of the second plurality of packets in the second queue with remaining ones of the plurality of grants.

    Quality of service framework for applications
    17.
    发明授权
    Quality of service framework for applications 有权

    公开(公告)号：US10798603B2

    公开(公告)日：2020-10-06

    申请号：US16293427

    申请日：2019-03-05

    Applicant: Cisco Technology, Inc.

    Inventor： John T. Chapman ,  Jennifer Andreoli-Fang

    IPC: H04W28/02 ,  H04W72/14 ,  H04W28/24 ,  H04W72/12 ,  H04W92/02

    Abstract: A quality of service framework for applications may be provided. First, a Bandwidth Report (BWR) message may be received from a first sub-system by a second sub-system. The BWR message may correspond to traffic to be received from the first sub-system by the second sub-system. Next, based on the BWR message, the second sub-system may schedule grants for the traffic to be received from the first sub-system. The second sub-system may then receive, from the first sub-system, the traffic. Then the second sub-system may transmit the traffic based on the scheduled grants.

    Hybrid active tap
    18.
    发明授权
    Hybrid active tap 有权

    公开(公告)号：US10771109B1

    公开(公告)日：2020-09-08

    申请号：US16281769

    申请日：2019-02-21

    Applicant: Cisco Technology, Inc.

    Inventor： Hang Jin ,  John T. Chapman

    IPC: H04B3/38 ,  H04B10/69 ,  H04B10/29 ,  H04B3/08

    Abstract: A hybrid active tap may be provided. The hybrid active tap may comprise a first branch and a second branch. The first branch may be disposed between a first diplexer and a second diplexer. The first branch may correspond to a first frequency spectrum. The second branch may be disposed between the first diplexer and the second diplexer. The second branch may correspond to a second frequency spectrum. The hybrid active tap may further comprise a third branch, a fourth branch, a splitter, and an amplification device. The third branch may be disposed between a first coupler and a third diplexer. The first coupler may be coupled to the first branch. The fourth branch may be disposed between a second coupler and the third diplexer. The second coupler may be coupled to the second branch. The splitter may be connected to the third diplexer and the amplification device may be disposed in the first branch.

    HYBRID ACTIVE TAP
    19.
    发明申请
    HYBRID ACTIVE TAP 审中-公开

    公开(公告)号：US20200274577A1

    公开(公告)日：2020-08-27

    申请号：US16281769

    申请日：2019-02-21

    Applicant: Cisco Technology, Inc.

    Inventor： Hang Jin ,  John T. Chapman

    IPC: H04B3/38 ,  H04B3/08 ,  H04B10/29 ,  H04B10/69

    Abstract: A hybrid active tap may be provided. The hybrid active tap may comprise a first branch and a second branch. The first branch may be disposed between a first diplexer and a second diplexer. The first branch may correspond to a first frequency spectrum. The second branch may be disposed between the first diplexer and the second diplexer. The second branch may correspond to a second frequency spectrum. The hybrid active tap may further comprise a third branch, a fourth branch, a splitter, and an amplification device. The third branch may be disposed between a first coupler and a third diplexer. The first coupler may be coupled to the first branch. The fourth branch may be disposed between a second coupler and the third diplexer. The second coupler may be coupled to the second branch. The splitter may be connected to the third diplexer and the amplification device may be disposed in the first branch.

    ECHO CANCELLATION TO ALLEVIATE TIMING VARYING CHANNELS
    20.
    发明申请
    ECHO CANCELLATION TO ALLEVIATE TIMING VARYING CHANNELS 审中-公开

    公开(公告)号：US20200186192A1

    公开(公告)日：2020-06-11

    申请号：US16792740

    申请日：2020-02-17

    Applicant: Cisco Technology, Inc.

    Inventor： John T. Chapman ,  Hang Jin ,  Tong Liu

    IPC: H04B3/23 ,  H04B10/25 ,  H04B3/32

    Abstract: Echo cancellation to alleviate timing varying channels may be provided. First, a feedback signal corresponding to one of a plurality of downstream paths and a combination upstream signal comprising a combination of upstream signals from a plurality of upstream paths may be received. Next, a plurality of echo corrected signals may be created using the feedback signal, the combination upstream signal, and a plurality of echo cancelation coefficients that each respectively correspond to each one of the plurality of echo corrected signals and that are different from each other. Then a one of the plurality of echo cancelation coefficients that corresponds to a one of the plurality of echo corrected signals that provides a best echo cancelation performance as compared to other ones of the plurality of echo corrected signals may be selected to use.

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