Patent ID: 9532354
Filing Date: 2016-12-27
CPC Classification: H04W

Claim Text:
1. A method for contention based accessing of resources by a wireless communication device in an industrial wireless sensor and actuator network employing a wireless time division communication structure, the method being performed by the wireless communication device having data for transmission and comprising the steps of: assigning a different frequency to each of the wireless communication device and other competing wireless communication devices, each frequency representing a priority setting, transmitting, in a contention interval, the priority setting of the wireless communication device competing for a resource, said priority setting being transmitted as a carrier wave having a previously-assigned frequency representing the priority setting, receiving, in the contention interval, priority settings of the other competing wireless communication devices having data for transmission, said priority settings being received as carrier waves having previously-assigned frequencies representing these priority settings, comparing the transmitted priority setting with the received priority settings, and seizing a following data interval if the transmitted priority setting is higher than the received priority settings for transmitting data in the following data interval, the data interval having a fixed length.