Adaptive Periodic Operation Configuration for Wireless Devices
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Solution Overview
Problem
High-speed wireless communication systems face challenges in configuring communication parameters to enhance mobility and demodulation performance for devices moving at speeds above 350 km/h, leading to unnecessary overhead and increased power consumption for stationary or low-speed devices.
Innovation Solution
A method to selectively configure periodic operations in wireless communication systems by determining the speed of devices and adjusting the periodicity interval of downlink and uplink signals or processing operations to either a shorter or longer interval based on the device's speed, optimizing performance and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If communication parameters are configured to enhance mobility and demodulation performance for high-speed devices, then mobility performance is improved, but power consumption increases for stationary or low-speed devices
Solution Approach 1:
The patent applies dynamics by making the periodic operation interval adaptive rather than fixed. The system dynamically adjusts the interval between periodic operations (e.g., reference signal transmissions) based on the detected speed of wireless devices. High-speed devices receive signals at shorter intervals to maintain demodulation performance, while low-speed or stationary devices receive signals at longer intervals, thereby reducing unnecessary power consumption for devices that do not require high mobility support.
Solution Approach 2:
The patent changes the parameter of periodic operation interval based on device speed. By monitoring device speed and adjusting the periodicity parameter accordingly, the system optimizes the balance between maintaining communication reliability for high-speed devices and reducing energy consumption for low-speed devices. This parameter adaptation resolves the contradiction by tailoring the signal transmission frequency to the actual mobility needs of each device.
2Reliability
If periodic operations are configured with shorter periodicity interval to support high-speed devices, then demodulation performance is improved, but overhead increases for the entire system
Solution Approach 1:
The patent applies local quality by differentiating the periodic operation interval for different device groups based on their speed characteristics. Instead of using a uniform short interval for all devices (which would maximize overhead), the system configures shorter intervals only for high-speed devices that require them for demodulation performance, while using longer intervals for low-speed and stationary devices. This localized optimization reduces overall system overhead while maintaining performance where needed.
Data Source
AI summary
At least one periodic operation is configured in a wireless communication system comprising a plurality of wireless devices and a serving network serving the wireless devices. The periodic operation is selectively configurable at one of a shorter periodicity interval and a longer periodicity interval. A method implementation performed by the serving network includes obtaining speed information indicative of the speed of one or more of the wireless devices in the wireless communication system and determining, based on the speed information, whether at least one of the one or more-wireless devices is moving at a speed at or above a speed threshold. The method further comprises configuring, if it is determined that at least one of the one or more-wireless devices is moving at a speed at or above the speed threshold, the at least one periodic operation with the shorter periodicity interval.