Wireless Control Information Transmission for Broadcast Updates
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems are inefficient in terms of power saving and cause transfer delays due to the need for idle-mode or sleep-mode UEs to continuously decode broadcast messages and switch to active mode to receive updated information.
Innovation Solution
A method is introduced where a base station transmits control information including a transmission time point for additional broadcast messages, allowing UEs to selectively decode and update only when necessary, reducing power consumption and minimizing transfer delays by using secondary superframe headers, advanced-MAP, or MAC management messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If idle-mode or sleep-mode UEs continuously decode broadcast messages to receive updated information, then information freshness is improved, but power consumption increases
Solution Approach 1:
The patent extracts only the essential control information (transmission time point indicators) from the full broadcast messages and transmits it separately. This allows UEs to selectively decode only when necessary, rather than continuously decoding complete messages, thereby reducing power consumption while maintaining information freshness.
Solution Approach 2:
The patent implements partial action by having UEs decode broadcast messages only partially (control information only) at specific intervals, rather than continuously decoding complete messages. This partial decoding approach reduces power consumption while still providing timely information about transmission time points.
2Loss of information
If idle-mode or sleep-mode UEs continuously decode broadcast messages, then information freshness is improved, but transfer delay increases
Solution Approach 1:
The patent applies preliminary action by transmitting control information containing transmission time point indicators before the actual additional broadcast messages. This allows UEs to prepare in advance and wake up only at the indicated times to receive updates, eliminating continuous decoding delays while maintaining information freshness.
Solution Approach 2:
The patent implements periodic action by having UEs decode broadcast messages at periodic intervals based on the transmission time point indicators in the control information, rather than continuously. This periodic decoding approach reduces transfer delays for information updates while conserving power.
3Loss of information
If additional broadcast information is transmitted through traffic channels, then information completeness is improved, but system complexity increases
Solution Approach 1:
The patent segments the broadcast information transmission into two parts: control information (transmitted through control channels) and additional broadcast messages (transmitted through traffic channels). This segmentation allows the system to maintain information completeness while reducing complexity by using existing channel structures for different purposes.
Data Source
AI summary
The present invention relates to a method and apparatus for transmitting/receiving control information for additional broadcast information in a wireless communication system. According to one aspect of the present invention, a method for transmitting control information for additional broadcast information in a wireless communication system comprises a step in which a base station transmits control information containing information on the transmission time of the additional broadcast message, and transmits the additional broadcast message at said transmission time.