Broadcast Frame Control Information Signaling for Receiver Power Reduction
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Solution Overview
Problem
Conventional in-band signaling schemes in broadcasting systems fail to effectively reduce power consumption and may result in reception errors due to the need for continuous reception of preamble, L1, and L2 signaling, even when only dynamic information changes, leading to inefficiencies in broadcast service transmission and reception.
Innovation Solution
A method and apparatus that include indication information in the frame to indicate changes or no changes in control information, allowing receivers to selectively turn on/off receiving units based on extracted indication information, thereby optimizing power usage and accurate data reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous reception of preamble, L1, and L2 signaling is performed in conventional in-band signaling schemes, then control information is reliably received, but power consumption increases and reception efficiency decreases
Solution Approach 1:
The patent extracts only the necessary control information (indication information) from the complete signaling structure and transmits it through data PLPs. This allows receivers to obtain essential control information without continuously receiving the entire preamble, L1, and L2 signaling structure, thereby reducing power consumption while maintaining reception reliability.
Solution Approach 2:
The patent transmits indication information about control information changes in advance through data PLPs before the actual control information is needed. This preliminary action allows receivers to prepare for selective reception, turning off unnecessary receiving units until changes are indicated, thus reducing overall power consumption.
2Use of energy by moving object
If conventional in-band signaling schemes transmit only dynamic information through data PLPs, then power consumption is reduced, but reception errors occur due to missing control information
Solution Approach 1:
The patent implements a feedback mechanism where indication information is transmitted through data PLPs to inform receivers about changes in control information. This feedback loop ensures that receivers only need to actively receive control information when changes are indicated, preventing reception errors while minimizing power consumption during unchanged periods.
Solution Approach 2:
The patent introduces indication information as an intermediary element that mediates between the complete control information structure and the receiver's selective reception capability. This intermediary allows receivers to make informed decisions about which receiving units to activate, ensuring accurate reception without continuous operation of all receiving units.
3Reliability
If receivers continuously monitor all control information in every frame, then no reception errors occur, but power consumption increases and system efficiency decreases
Solution Approach 1:
The patent extracts only the essential indication information about control information changes and transmits it through data PLPs. This extraction allows receivers to skip monitoring complete control information structures when no changes occur, improving transmission efficiency while maintaining reception reliability through selective monitoring.
Solution Approach 2:
The patent implements partial action by having receivers monitor only the indication information portion of the signaling structure continuously, while activating full control information reception only when changes are indicated. This partial monitoring approach maintains reliability for essential changes while improving overall system efficiency.
Data Source
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AI summary
Apparatus and method for transmitting and receiving a frame including control information in a broadcasting system. A frame for a broadcast service is generated using an in-band signaling scheme, and includes location information of control information in a next frame and indication information indicating a change/no-change in the control information in the next frame. The new frame structure minimizes power consumption of a receiver supporting the broadcast service.