Method Of Scheduling Field Devices In A Wireless Network Of An Industrial Process System
AssigneeABB Schweiz AG
InventorsEwa Hansen, Johan Åkerberg, Jonas Neander, Krister Landernäs, Niclas Ericsson, Tomas Lennvall
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Abstract
A method of scheduling field devices in a wireless network of an industrial process system is provided. The method is performed in a scheduling device and includes scheduling one or more field devices on uplink resources and on downlink resources, such that, for at least one of the field devices, a periodicity of uplink resources is different than a periodicity of downlink resources.
Claims14
A method (30) of scheduling field devices (14, 16, 18) in a wireless network (20) of an industrial process system (1), the method (30) being performed in a scheduling device (15) and being characterized by:
- scheduling (31) one or more field devices (14, 16, 18) on uplink resources and on downlink resources, such that, for at least one of the field devices (14, 16, 18), a periodicity of uplink resources is different than a periodicity of downlink resources, wherein in the scheduling, the uplink and downlink are handled as separate disjoint tasks, whereby the resources are assigned separately in uplink and downlink.
The method (30) as claimed in claim, wherein the scheduling (31) comprises scheduling the uplink resources and the downlink resources as independent scheduling tasks.
The method (30) as claimed in any of the preceding claims, wherein the scheduling comprises adapting one or more of:
- number of uplink resources and number of downlink resources based on one or both of type of field device and application requirements of the field device (14, 16, 18) to be scheduled.
A scheduling device (15) for scheduling field devices (14, 16, 18) in a wireless network (20) of an industrial process system (1), the scheduling device (15) characterized by being configured to schedule one or more field devices (14, 16, 18) on uplink resources and on downlink resources, such that, for at least one of the field devices (14, 16, 18), a periodicity of uplink resources is different than a periodicity of downlink resources wherein the scheduling device (15) is configured to schedule the uplink and downlink resources as independent scheduling tasks, whereby the resources are assigned separately in uplink and downlink.
Dependencies are inferred from the claim text.