Wireless System Information Timer to Cut Redundant Reception
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Solution Overview
Problem
In wireless communication systems, especially during emergency situations, continuous broadcasting of warning messages leads to unnecessary power consumption in wireless devices as they continuously receive the same messages, causing energy wastage.
Innovation Solution
Implementing a method where a wireless device receives a first transmission of system information and starts a timer; while the timer is running, it skips reading subsequent transmissions of the same information, conserving power by only re-acquiring the information after the timer expires.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wireless device continuously receives system information broadcasts from the network, then the device can stay updated with the latest warning messages and system updates, but the device consumes excessive power and resources due to redundant reception of identical messages
Solution Approach 1:
The patent implements periodic reception of system information by introducing a timer mechanism. The wireless device receives system information at periodic intervals defined by the timer, rather than continuously monitoring every broadcast. This periodic action maintains information freshness while significantly reducing power consumption by eliminating redundant receptions of identical messages.
Solution Approach 2:
The patent applies preliminary action by having the wireless device acquire and store system information in advance before it becomes obsolete. The device proactively receives system information when needed (triggered by events like cell reselection or timer expiration) and keeps it stored for future use, rather than continuously receiving updates. This preliminary acquisition ensures the device has current information without requiring continuous reception.
2Reliability
If a wireless device acquires system information frequently to ensure it has the latest updates, then the device maintains up-to-date information, but the device processes redundant data and wastes computational resources
Solution Approach 1:
The patent extracts only the essential system information needed for the wireless device to operate correctly, rather than processing all broadcasted data. By selectively acquiring only necessary information elements and ignoring redundant content, the device maintains information currency while minimizing computational resource consumption and energy wastage associated with processing duplicate data.
Solution Approach 2:
The patent implements a mechanism where the wireless device discards outdated or redundant system information and recovers (re-acquires) only when necessary. The timer mechanism triggers selective re-acquisition of system information only when the current information becomes obsolete, allowing the device to discard redundant data and recover only essential updates, thereby reducing energy wastage from processing unnecessary information.
Data Source
AI summary
A method and apparatus for restricting to receive a system information in a wireless communication system is provided. A wireless device receives, from a network, a first transmission of a system information. A wireless device starts a timer related to the system information. A wireless device skips to read a second transmission of the system information, while the timer is running.