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Systems, devices, and methods for low-jitter communication over a packet-switched network

A technology of packet switching network and switching network, which is applied in the field of network communication and can solve the problems of expensive optical links

Active Publication Date: 2017-08-18
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this optical link is expensive and not always available

Method used

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  • Systems, devices, and methods for low-jitter communication over a packet-switched network
  • Systems, devices, and methods for low-jitter communication over a packet-switched network
  • Systems, devices, and methods for low-jitter communication over a packet-switched network

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Experimental program
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Embodiment Construction

[0022] figure 1 A network communication system 10 is shown according to an embodiment. As shown, the system 10 includes a network controller 20 , a data source 30 , a switch 40 , a data receiver 50 and a clock controller 60 interconnected by a packet switching network 70 .

[0023] The network controller 20 is a software-defined network (SDN) controller and implements the control plane functions of the packet-switched network 70 . For example: the network controller 20 may be an OpenDaylight SDN controller, an Open Network Operating System (ONOS) SDN controller, and the like. In another embodiment, the network controller 20 may be a non-SDN network controller.

[0024] Network controller 20 performs traffic engineering functions for network 70 . For example: the network controller 20 determines the path for the data packets transmitted in the network 70, and schedules the departure time of the data packets at the nodes of the system 10, for example: at the data source 30 an...

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Abstract

There is disclosed a network communication system that includes data sources and of switches. Each of the data sources and switches is interconnected by a packet-switched network, and is synchronized to a common clock. The system also includes a network controller that maintains records of network characteristics including a transmission delay for each of the data sources and switches, and a transmission delay for links in the packet-switched network. The network controller processes the network characteristics to generate, for each of a plurality of packets of a given type of traffic: a path from a particular data source, and through at least one particular switch, and a schedule of departure times at each of the particular data source and the at least one particular switch. The path and the schedule are optimized to meet jitter requirements for the given type of traffic.

Description

[0001] Cross References to Related Applications [0002] This application claims benefit to U.S. Provisional Patent Application No. 62 / 073,132, filed October 31, 2014, entitled "System and Method for CPRI Communications in a Packet Switched Network," filed March 10, 2015 62 / 130,901, entitled "Optimization of Low Traffic Jitter Scheduling over Packet Networks," and 14 / 824,608, filed August 12, 2015, entitled "For Packet-Switched System, Apparatus, and Method for Low-Jitter Communications in Networks", the contents of each of which are incorporated herein by reference. technical field [0003] The present disclosure relates to network communications, and more particularly to systems, devices and methods for low-jitter communications in packet-switched networks. Background technique [0004] Optical links are used in network communications where low packet jitter is required. For example, optical links can be used in fronthaul networks of wireless communication systems. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/727H04L45/02H04L45/121H04L45/24H04L47/56
CPCH04L45/121H04L45/02H04L41/5019H04L43/0852H04L47/283H04W56/00H04L45/24H04L41/40H04L43/20H04L43/062H04L43/087H04L47/56H04L47/625
Inventor 彼得·艾斯伍德-史密斯威廉·麦考密克万涛
Owner HUAWEI TECH CO LTD
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