MBMS Service Reception Control via Display State Detection
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Solution Overview
Problem
In wireless communication systems, UEs continue to receive multimedia broadcast multicast services even when the display is turned off, wasting battery life since users are not actively watching the content, leading to inefficient power usage.
Innovation Solution
A communication device with an application module to determine the state of a display device and a modem module to control the reception of MBMS service based on this state, allowing the service to be paused or resumed accordingly, thereby reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE continues to receive MBMS service when the display is turned off, then the service reception is maintained, but the battery life is wasted due to unnecessary power consumption
Solution Approach 1:
The patent implements dynamic adjustment of MBMS service reception based on display state. The system transitions between different reception modes (continuous reception, periodic reception, or suspension) according to whether the display is on or off, making the power consumption adaptive to actual service needs rather than static
Solution Approach 2:
The patent establishes a feedback mechanism where the display state (on/off) is continuously monitored and fed back to control the MBMS reception behavior. The application module detects display state changes and communicates this information to the modem module, which adjusts reception parameters accordingly, creating a closed-loop control system that optimizes power consumption based on actual service requirements
2Loss of energy
If the UE stops receiving MBMS service when the display is turned off, then the battery life is conserved, but the service reception is interrupted
Solution Approach 1:
The patent applies partial action by maintaining MBMS service reception at reduced intensity when the display is off. Instead of completely suspending reception, the system can continue receiving at periodic intervals or at lower data rates, consuming less power while still maintaining basic service availability for when the display is turned on
Solution Approach 2:
The patent implements periodic reception as an intermediate mode between continuous and suspended reception. When the display is off, the UE can receive MBMS service at periodic intervals rather than continuously, reducing power consumption while ensuring that service content is still updated periodically and ready for immediate playback when the display is activated
3Reliability
If the UE receives MBMS service at full power regardless of display state, then the service quality is maintained, but the power consumption increases unnecessarily
Solution Approach 1:
The patent applies local quality by differentiating service reception quality based on local conditions (display state). When the display is on, full-quality reception is maintained. When the display is off, the reception quality is adjusted to a lower level (periodic or suspended), matching the local need for service quality with actual power consumption
Data Source
AI summary
A communication device in a wireless communication system, for handling a multimedia broadcast multicast service (MBMS) service is disclosed. The communication device comprises an application module, for determining a state of a display device of the communication device; and a modem module, coupled to the application module, for receiving the MBMS service according to the state.