LTE Access Node PHR Prohibit Timer Dynamic Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current Long Term Evolution (LTE) access nodes are unable to dynamically adjust power headroom (PHR) prohibit timers based on network conditions, leading to inefficient resource utilization and potential congestion in wireless communication networks.
Innovation Solution
The method involves an LTE access node dynamically modifying PHR prohibit timers by determining the signaling load of wireless communication devices and adjusting the timers based on predefined criteria, allowing for increased or decreased intervals between PHR notifications to manage network congestion effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If PHR prohibit timers are set to short intervals to enable frequent power headroom reporting, then network responsiveness and power management efficiency are improved, but signaling load and network congestion increase
Solution Approach 1:
The patent implements dynamic adjustment of PHR prohibit timers based on real-time network conditions. The access node monitors signaling load and device activity, then adaptively modifies the prohibit timer values - using shorter timers when load is low to improve responsiveness, and longer timers when load is high to reduce congestion. This transforms the static timer configuration into a dynamic parameter that responds to changing network states.
Solution Approach 2:
The invention changes the parameter values of PHR prohibit timers based on network conditions. By adjusting the timer duration parameter dynamically - decreasing it when signaling load is acceptable and increasing it when congestion is detected - the system optimizes the balance between reporting frequency and network load management.
2Quantity of substance
If PHR prohibit timers are set to long intervals to reduce signaling load, then network congestion is reduced, but power management efficiency and network responsiveness deteriorate
Solution Approach 1:
The system dynamically adjusts PHR prohibit timer intervals based on real-time monitoring of network conditions and device activity patterns. When the access node detects low signaling load and high device activity, it reduces the prohibit timer interval to improve power management efficiency. When load increases, it extends the interval to reduce congestion, creating a responsive adaptive system.
Solution Approach 2:
The patent implements a feedback mechanism where the access node continuously monitors signaling load, device activity, and PHR reporting patterns, then uses this feedback to adjust PHR prohibit timer values. This closed-loop control ensures that timer settings respond to actual network conditions, optimizing both load management and power efficiency based on real-time performance data.
3Device complexity
If fixed PHR prohibit timers are used to simplify network configuration, then device complexity is reduced, but adaptability to changing network conditions deteriorates
Solution Approach 1:
The access node automatically monitors network conditions and adjusts PHR prohibit timers without requiring manual configuration or complex device-side logic. The system self-regulates by detecting signaling load changes and autonomously modifying timer values, eliminating the need for complex pre-configured timer settings while maintaining simplicity at the device level.
Solution Approach 2:
The invention transforms static, fixed timer configurations into dynamic, adaptive settings that automatically respond to network conditions. The access node implements real-time adjustment of PHR prohibit timers based on observed signaling load and device activity, providing adaptability without increasing device complexity since the intelligence resides in the network infrastructure.
Data Source
AI summary
The technology disclosed herein enhances the operation of a Long Term Evolution (LTE) access node to dynamically modify power headroom (PHR) prohibit timers. In one implementation, a method of operating a LTE access node includes communicating first signals with wireless communication devices in device to device (D2D) communication groups using a first PHR timer. The method further provides identifying a signaling load for the wireless communication devices, and determining if the signaling load meets signaling criteria. The method also includes, if the signaling load meets the signaling criteria, identifying a second PHR prohibit timer, and providing the wireless communication devices with the second PHR prohibit timer.