Wireless Device Mode Handling for Power Saving
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Solution Overview
Problem
Wireless networks face increasing signaling loads due to devices frequently going online for updates, leading to inefficient radio power consumption and resource management, particularly in active modes where resources are released and recreated upon reconnection.
Innovation Solution
A method and node system that determine when a wireless device should transition from active mode to either idle or connected power saving modes based on criteria such as mobility, device type, and network load, minimizing signaling and maintaining resource allocation to reduce radio power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the wireless device transitions to idle mode to save radio power consumption, then battery life is extended, but signaling load increases due to resource release and recreation
Solution Approach 1:
The patent applies dynamics by making the power saving mode adaptive rather than static. The network node dynamically selects between idle mode and connected mode with DRX/URA-PCH based on real-time criteria such as device mobility, device type, and network load conditions. This dynamic adjustment optimizes the balance between power savings and signaling overhead根据不同场景灵活选择模式
Solution Approach 2:
The patent changes the operational parameters of the wireless device by introducing configurable power saving modes with different characteristics. Instead of a single power saving mode, the system implements multiple modes (idle mode, connected mode with DRX, connected mode with URA-PCH) with varying levels of power consumption and signaling overhead, allowing parameter-based optimization
2Loss of energy
If the wireless device uses connected mode with DRX or URA-PCH to stay connected, then signaling is minimized, but handover signaling increases for all movements
Solution Approach 1:
The patent applies local quality by making different parts of the system (different wireless devices, different network conditions) have different characteristics. Instead of applying a uniform handover policy to all devices, the network node evaluates device-specific criteria (mobility, device type) and network conditions to determine the appropriate power saving mode for each device, creating localized optimization
3Use of energy by moving object
If the wireless device frequently transitions between active and power saving modes, then power consumption is optimized, but resource allocation overhead increases
Solution Approach 1:
The patent applies self-service by enabling the wireless device to autonomously select and manage its power saving mode based on evaluated criteria. The device can independently determine whether to transition to idle mode or connected mode with DRX/URA-PCH, reducing the need for complex network-controlled resource management and simplifying the overall system complexity
Data Source
AI summary
The embodiments herein relate to method in a node (105, 110) for handling modes in the wireless device (105). The node (105, 110) and wireless device (105) are comprised in a wireless network (100). The wireless device (105) is in active mode. The node (105, 110) obtains information indicating that the wireless device (105) should reduce its radio power consumption. The node (105, 110) determines that the wireless device (105) should change from active mode to a first power saving mode based on the obtained information and based on a first criterion. And, the node (105, 110) or the wireless device (105) determines that the wireless device (105) should change from active mode to a second power saving mode based on the obtained information and based on a second criterion.