RRC State Transition Timers for Mobile Battery Conservation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In UMTS networks, mobile devices are forced to maintain higher data rate states even after data transactions are completed, leading to increased battery consumption and wastage of network resources due to the network's unawareness of data exchange status between the device and external servers.
Innovation Solution
A method where the mobile device determines its operating state and data traffic pattern, generates connection state transition timers, and sends a request to the network to change its state, allowing the network to transition to more battery-efficient modes based on the device's activity levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the network maintains the UE in a higher data rate state (RRC connected mode) to reduce call set-up latency, then the call set-up latency is reduced, but the battery consumption increases and network resources are wasted
Solution Approach 1:
The UE sends a data inactivity indication message to the network before actually becoming inactive, allowing the network to proactively transition the UE to idle mode in advance. This preliminary action enables the network to release resources ahead of time while still maintaining low latency for actual data transmission when needed.
2Productivity
If the network maintains the UE in a higher data rate state to anticipate more data exchange, then the latency for subsequent data transmission is reduced, but network resources are unnecessarily occupied
Solution Approach 1:
The UE provides feedback to the network about its data activity status through the data inactivity indication message. This feedback mechanism allows the network to make informed decisions about resource allocation and state transitions, transitioning UEs to idle mode when they are likely to be inactive, thus optimizing resource utilization while maintaining productivity when needed.
3Extent of automation
If the UTRAN controls RRC state transitions without awareness of UE data exchange status, then the network maintains control over radio resources, but the UE is forced to stay in higher data rate states than necessary
Solution Approach 1:
The UE autonomously determines its own data inactivity status and initiates the state transition process by sending the data inactivity indication message to the network. This self-service approach allows the UE to take control of its own power management while the network retains final authorization control, resolving the contradiction between network control and battery life optimization.
Data Source
AI summary
Preserving battery resources in a wireless device in communication with a wireless network by dynamically aligning a RRC connection status of a mobile wireless communication device in communication with a wireless network with a data traffic profile. The data traffic profile indicating a pattern of data transfer between the mobile wireless communication device and the wireless network.