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Channel access in an industrial wireless network

An industrial wireless network and channel technology, applied in wireless communication, electrical components, etc., can solve the problems that TSN cannot directly apply wireless network, lack of flexibility, etc.

Active Publication Date: 2020-11-10
HITACHI ENERGY SWITZERLAND AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As disclosed above, although IEEE TSN can be used in Ethernet to schedule traffic with different priorities, however, TSN cannot be directly applied in wireless networks
Slotted protocols such as those proposed in IEEE 802.15.4e are commonly used to regulate channel access and avoid collisions, but they lack flexibility in handling the different traffic priorities offered by TSN

Method used

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  • Channel access in an industrial wireless network
  • Channel access in an industrial wireless network
  • Channel access in an industrial wireless network

Examples

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Embodiment Construction

[0032] The inventive concepts will now be described more fully hereinafter with reference to the accompanying drawings, in which some embodiments of the inventive concepts are shown. However, inventive concepts may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of example so that this disclosure will be thorough and complete, And will fully convey the scope of the inventive concept to those skilled in the art. Throughout the specification, like numerals refer to like elements. Any steps or features shown by dashed lines should be considered optional.

[0033] figure 1A wireless communication network 100 is schematically shown, in which the embodiments disclosed herein are applicable. The network entities, denoted as nodes 200a, 200b, . Each node may represent a component of a substation automation system (such as a gateway, circuit breaker, circuit protector, tran...

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PUM

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Abstract

There is provided mechanisms for channel access in an industrial wireless network. A method comprises allocating, by a network controller and to packet transceivers in the industrial wireless network,time / frequency resource units in a set of guaranteed timeslots. The guaranteed timeslots are timewise divided into slots and frequency wise divided into channels, where one slot-channel pair definesone time / frequency resource unit. The method comprises providing, by the network controller and to the packet transceivers, information about the time / frequency resource units allocated to the packettransceivers. The method comprises mapping, by the packet transceivers, packets of their own traffic flows to their allocated time / frequency resource units in each set of guaranteed timeslots. The packets for each packet transceiver are mapped according to priority-based scheduling of its own traffic flows and independently of any mapping of packets of other packet transceivers in the industrial wireless network.

Description

technical field [0001] Embodiments presented herein relate to methods, network controllers, packet transceivers, computer programs and computer program products for channel access in industrial wireless networks. Background technique [0002] Industrial communication systems are commonly used in grid control applications (for example, for substation automation) for device control and monitoring. Therefore, these communication systems must accommodate different types of traffic from information technology (IT) infrastructure (eg, remote monitoring equipment, metering equipment, etc.) as well as from operational technology (OT) infrastructure (eg, control systems). Different business flows have different specific requirements in terms of determinism, delay and reliability, which should be considered when designing the protocol stack, especially the Media Access Control (MAC) layer in the protocol stack. [0003] In this regard, the IEEE Time Sensitive Networking (TSN) Working...

Claims

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Application Information

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IPC IPC(8): H04W74/04H04W72/02
CPCH04W72/02H04W74/04H04W72/044H04W72/1268H04W74/02H04W72/566
Inventor 庞智博M·卢维索托
Owner HITACHI ENERGY SWITZERLAND AG