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1. 发明授权

US11601323B2 Techniques for wireless access and wireline network integration 有权
公开(公告)号：US11601323B2
公开(公告)日：2023-03-07
申请号：US17007728
申请日：2020-08-31
申请人： Cisco Technology, Inc.
发明人： John T. Chapman , Jennifer Andreoli-Fang
IPC分类号： H04L41/06 , H04L1/18 , H04L43/0823 , H04W24/10 , H04L1/1867 , H04L1/1812 , H04L1/1822
摘要： One embodiment is a method and includes receiving at a termination element of a first network a bandwidth report (“BWR”), in which the BWR includes information regarding a data transmission opportunity over a second network for at least one endpoint data; scheduling a first network transmission opportunity for the at least one endpoint data using information derived from the received BWR; and receiving from a first network forwarding device the at least one endpoint data in accordance with the scheduled first network transmission opportunity.

2. 发明授权

US10708195B2 Predictive scheduler 有权
公开(公告)号：US10708195B2
公开(公告)日：2020-07-07
申请号：US16141517
申请日：2018-09-25
申请人： Cisco Technology, Inc.
发明人： John T. Chapman , Elias Chavarria Reyes , Alon Shlomo Bernstein , Dantong Liu , Zheng Lu
IPC分类号： H04L12/911 , H04L12/28 , H04L12/801
摘要： Predictive scheduling may be provided. First, a first device may identify when a service flow is expected to become active. The first device may estimate an initial traffic profile in response to identifying when the service flow is expected to become active. The first device may then grant allocation based on the initial traffic profile of the service flow. Next, the first device may collect feedback to later update the traffic profile estimate. The first device may then update the traffic profile estimate.

3. 发明申请

US20190326949A1 Amplifier Supporting Full Duplex (FDX) Operations 审中-公开
公开(公告)号：US20190326949A1
公开(公告)日：2019-10-24
申请号：US15956902
申请日：2018-04-19
申请人： Cisco Technology, Inc.
发明人： Hang Jin , John T. Chapman
IPC分类号： H04B3/20 , H04L5/14 , H04B1/525
摘要： Ringing suppression may be provided. First, a first ringing suppressor in a first branch of an amplifier may cancel interference from a second branch of the amplifier using a transmitted signal from the second branch as a reference. The first ringing suppressor may also cancel echo interference from the first branch of the amplifier using an output of the first ringing suppressor in the first branch as a reference. Furthermore, a second ringing suppressor in the second branch of the amplifier may cancel interference from the first branch of the amplifier using a transmitted signal from the first branch as a reference. Furthermore, the second ringing suppressor may cancel echo interference from the second branch of the amplifier using an output of the second ringing suppressor in the second branch as a reference.

4. 发明授权

US10248443B2 Virtual modem termination system migration in a cable modem network environment 有权
公开(公告)号：US10248443B2
公开(公告)日：2019-04-02
申请号：US14807728
申请日：2015-07-23
申请人： CISCO TECHNOLOGY, INC.
发明人： Amit Singh , John T. Chapman , Alon Bernstein
IPC分类号： G06F9/455 , H04L12/16 , H04L12/28 , H04L12/46
摘要： An example system and method for facilitating virtual cable modem termination system (VCMTS) migration in cable modem network environments is provided and includes spawning, by an orchestration component executing using a processor, a first instance of a virtual network function (VNF) on a first server in a cable modem network, storing state of the first instance as state information in an external database, spawning a second instance of the VNF on a different second server, synchronizing state of the second instance with the state information stored in the external database, and deleting the first instance. In specific embodiments, the VNF comprises a VCMTS.

5. 发明授权

US10177811B2 Echo cancellation 有权
公开(公告)号：US10177811B2
公开(公告)日：2019-01-08
申请号：US15666628
申请日：2017-08-02
申请人： CISCO TECHNOLOGY, INC.
发明人： John T. Chapman , Hang Jin
IPC分类号： H04L25/08 , H04B3/23
摘要： A method is provided in one example and includes receiving a data signal, receiving an interference signal, wherein the interference signal is copied to create a reference data interference signal, combining the data signal and the interference signal to create a combined signal, using an analog echo cancellation engine on the combined signal to create an analog echo cancellation signal, and using a digital echo cancellation engine on the analog echo cancellation signal to create a data with echo cancellation signal. The data with echo cancellation signal can be communicated using a coaxial cable.

6. 发明申请

US20180294941A1 FULL DUPLEX RESOURCE ALLOCATION IN CABLE NETWORK ENVIRONMENT 审中-公开
公开(公告)号：US20180294941A1
公开(公告)日：2018-10-11
申请号：US15483260
申请日：2017-04-10
申请人： CISCO TECHNOLOGY, INC.
发明人： John T. Chapman , Hang Jin , Tong Liu
IPC分类号： H04L5/14
CPC分类号： H04L5/14 , H04B3/52 , H04L5/003 , H04L5/0039 , H04L47/76 , H04L47/781
摘要： An example apparatus comprises a processor, a memory element, and a media access control (MAC) scheduler. The MAC scheduler is configured to implement a transmission-reception (T-R) coordination scheme among a plurality of cable modems in a cable network, wherein the cable modems are categorized into interference groups. The MAC scheduler is further configured to assign one or more of the interference groups to at least one transmission group based upon predetermined criteria; and determine an upstream bandwidth constraint and downstream bandwidth constraint for the at least one transmission group, wherein the upstream bandwidth constraint and downstream bandwidth constraint is implemented by proportionally modifying an allocated upstream bandwidth and an allocated downstream bandwidth for the at least one transmission group to require that the sum of the allocated upstream bandwidth and the allocated downstream bandwidth does not exceed a spectrum capacity for the at least one transmission group.

7. 发明申请

US20180234130A1 ECHO CANCELLATION 审中-公开
公开(公告)号：US20180234130A1
公开(公告)日：2018-08-16
申请号：US15666628
申请日：2017-08-02
申请人： CISCO TECHNOLOGY, INC.
发明人： John T. Chapman , Hang Jin
IPC分类号： H04B3/23
CPC分类号： H04B3/23
摘要： A method is provided in one example and includes receiving a data signal, receiving an interference signal, wherein the interference signal is copied to create a reference data interference signal, combining the data signal and the interference signal to create a combined signal, using an analog echo cancellation engine on the combined signal to create an analog echo cancellation signal, and using a digital echo cancellation engine on the analog echo cancellation signal to create a data with echo cancellation signal. The data with echo cancellation signal can be communicated using a coaxial cable

8. 发明授权

US09966993B2 Interference suppression in full duplex cable network environments 有权
公开(公告)号：US09966993B2
公开(公告)日：2018-05-08
申请号：US15052499
申请日：2016-02-24
申请人： CISCO TECHNOLOGY, INC.
发明人： Hang Jin , John T. Chapman
IPC分类号： H04W4/00 , H04B3/32 , H04B3/20 , H04B3/487 , H04B1/04 , H04B1/10
CPC分类号： H04B3/32 , H04B1/0475 , H04B1/10 , H04B3/20 , H04B3/487
摘要： An example method for interference suppression in full duplex cable network environments is provided and includes providing a baseband (BB) reference signal on a first pathway to a signal processor, converting the BB reference signal to a first radio frequency (RF) signal, transmitting the first RF signal on the first pathway, the first RF signal being reflected back on a second pathway, receiving a second RF signal on the second pathway, the second RF signal including interferences from the reflections, generating an RF reference signal based on signals on the first pathway, providing the RF reference signal to the signal processor, providing the second RF signal to the signal processor, and reducing, by the signal processor, interferences in the second RF signal from reflections of the first RF signal based on the BB reference signal and the RF reference signal.

9. 发明申请

US20170303273A1 PROACTIVE UPSTREAM SCHEDULING FOR FLOWS IN A POINT-TO-MULTIPOINT COMMUNICATIONS NETWORK 有权
公开(公告)号：US20170303273A1
公开(公告)日：2017-10-19
申请号：US15130629
申请日：2016-04-15
申请人： CISCO TECHNOLOGY, INC.
发明人： Hang Jin , John T. Chapman , Gerard White , Alon Bernstein
IPC分类号： H04W72/04 , H04W72/12 , H04W72/14 , H04L29/08
CPC分类号： H04W72/0446 , H04L47/72 , H04L47/76 , H04L47/788 , H04L47/822 , H04L47/823 , H04L67/16 , H04W72/1263 , H04W72/14
摘要： A method is provided in one example embodiment and includes predicting a user average data rate for a cable modem; establishing a minimum bandwidth grant size and a maximum bandwidth grant size for the cable modem based on the predicted user average data rate; receiving from the cable modem a request for a particular amount of bandwidth; performing an overgrant if the particular amount of bandwidth is less than the minimum bandwidth grant size, in which the overgrant comprises granting to the cable modem more than the requested particular amount of bandwidth; and performing an undergrant if the particular amount of bandwidth is greater than the maximum bandwidth grant size, in which the undergrant comprises granting to the cable modem less than the requested particular amount of bandwidth.

10. 发明授权

US09559899B2 Upstream external PHY interface for data and control plane traffic 有权
标题翻译：上行外部PHY接口，用于数据和控制平面流量
公开(公告)号：US09559899B2
公开(公告)日：2017-01-31
申请号：US14807461
申请日：2015-07-23
申请人： Cisco Technology, Inc.
发明人： John T. Chapman
IPC分类号： H04W24/00 , H04L12/24 , H04L12/28 , H04N21/258 , H04N21/61 , H04N21/643 , H04L29/12 , H04N21/222 , H04N21/647
CPC分类号： H04L41/0803 , H04L12/2801 , H04L12/2863 , H04L61/2015 , H04N21/2221 , H04N21/25816 , H04N21/6118 , H04N21/6168 , H04N21/64322 , H04N21/64707
摘要： An access point that supports downstream and upstream communication from and to a Modular Cable Modem Termination System (M-CMTS) core to and from customer premises equipment (CPE), respectively, implements an Upstream External PHY Interface (UEPI) protocol with the M-CMTS core for control of the upstream communication. The access point receives from the M-CMTS core first UEPI control messages comprising information to configure one or more pathways with the access point for data plane upstream communication and control plane communication. The access point transmits to the M-CMTS core second UEPI control messages including a spectrum management message to manage upstream spectrum between the access point and the M-CMTS core, and a range request message to request ranging information so that the CPE can transmit upstream packets within an upstream timeslot, wherein at least one second UEPI control message is forwarded from the (CPE).
摘要翻译：分别支持来自和来自客户驻地设备（CPE）的模块化有线调制解调器终端系统（M-CMTS）核心的下行和上行通信的接入点实现与M-CMTS的上行外部PHY接口（UEPI）协议， CMTS核心用于控制上游通信。接入点从M-CMTS核心接收包含信息的第一UEPI控制消息，以配置与数据平面上游通信和控制平面通信的接入点的一个或多个路径。接入点向M-CMTS核心发送包括频谱管理消息的M-CMTS核心第二UEPI控制消息，以管理接入点和M-CMTS核心之间的上行频谱，以及范围请求消息，以请求测距信息，使得CPE可以向上游发送在上行时隙内的分组，其中至少一个第二UEPI控制消息从（CPE）转发。

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