Wireless Device DMRS Measurement Adaptation for Overhead Reduction
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Solution Overview
Problem
In wireless communication networks with mixed configurations of single and dual Demodulation Reference Signals (DMRS), devices face inefficiencies in reporting signal quality measurements, leading to suboptimal network selection and increased overhead, especially for static or near-static devices which report unnecessary measurements on dual DMRS networks.
Innovation Solution
A wireless communication device selectively performs and reports signal quality measurements based on its speed, choosing between single and dual DMRS activities to optimize network selection, thereby reducing unnecessary overhead and improving resource utilization by considering coherence time and signal quality parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If devices perform signal quality measurements on both single DMRS and dual DMRS networks, then network selection coverage is improved, but measurement overhead and device complexity increase
Solution Approach 1:
The device dynamically adjusts its measurement behavior based on its current speed state. When the device is static or moving slowly, it performs measurements only on single DMRS networks. When moving at higher speeds, it switches to measuring only dual DMRS networks. This dynamic adaptation resolves the contradiction by making the measurement scope flexible rather than fixed, reducing overhead while maintaining appropriate network selection coverage for different operational conditions.
Solution Approach 2:
The invention changes the measurement parameter (which network type to measure) based on the device's speed parameter. By using speed as a triggering condition, the system transitions between different measurement modes: measuring single DMRS at low speeds and dual DMRS at high speeds. This parameter-based switching resolves the technical contradiction by adapting measurement behavior to actual device conditions.
2Measurement precision
If devices report measurements on dual DMRS networks, then network selection accuracy is improved for high-speed scenarios, but unnecessary overhead increases for static devices
Solution Approach 1:
The reporting behavior is made dynamic based on device speed. Static or slow-moving devices dynamically switch to reporting only on single DMRS networks, while fast-moving devices report on dual DMRS networks. This dynamic switching ensures that reporting overhead is incurred only when necessary for accurate network selection, resolving the contradiction between measurement precision and energy loss.
Solution Approach 2:
The invention extracts and removes unnecessary measurement and reporting activities. For static devices, it extracts the unnecessary dual DMRS measurement and reporting tasks, leaving only single DMRS measurements. This selective extraction eliminates wasted overhead while preserving essential network selection functionality for each device type.
3Loss of energy
If devices selectively measure only single DMRS networks, then overhead is reduced for static devices, but network selection performance deteriorates for high-speed scenarios
Solution Approach 1:
The measurement strategy is made dynamic and adaptive to device speed conditions. Rather than universally measuring only single DMRS networks, the system automatically adjusts: static devices measure single DMRS (low overhead), while high-speed devices measure dual DMRS (high reliability). This dynamic approach resolves the contradiction by ensuring appropriate measurement behavior for each operational context.
Solution Approach 2:
The system changes the measurement target parameter based on the device's speed parameter. When speed exceeds a threshold, the measurement parameter switches from single DMRS to dual DMRS networks. This parameter-driven adaptation ensures that network selection performance is maintained for high-speed devices while reducing overhead for static devices.
Data Source
AI summary
A method performed by a wireless communication device for reporting signal quality measurements. The wireless communication device operates in a wireless communications network and comprises a first wireless network configured with single Demodulation Reference Signals (DMRS) and a second wireless network configured with dual DMRS.The wireless communication device receives a set of DMRS from the first wireless network and a set of dual DMRS from the second wireless network.The wireless communication device selects any one or more out of a first activity and a second activity based on the speed of the wireless communication device. The first activity comprises performing first signal quality measurements of the set of single DMRS and reporting at least some of the first signal quality measurements to the wireless communications network, and the second activity comprises performing a second signal quality measurement of the set of dual DMRS and reporting at least some of the second signal quality measurements to the wireless communications network.