Enhanced System Information Transmission via Periodic Modification
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Solution Overview
Problem
In communication networks, terminals in harsh environments require enhanced transmission of system information to maintain connectivity, but continuous enhanced transmission of system information in these environments leads to excessive resource usage, leaving insufficient resources for terminals in less harsh environments.
Innovation Solution
System information is transmitted periodically in an enhanced manner based on a modification period, with two adjacent transmission periods being discontinuous, allowing for reduced resource occupation by configuring the transmission to occur at specific time-sequence locations within a modification period.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If system information is continuously transmitted in an enhanced transmission manner to terminals in harsh environments, then the reliability of communication for these terminals is improved, but the transmission resources are excessively occupied
Solution Approach 1:
The patent implements periodic transmission of system information to terminals in harsh environments by defining a modification period structure. The enhanced system information is transmitted at specific periodic intervals (e.g., every 10 modification periods) rather than continuously, allowing terminals to receive necessary updates while freeing up resources during non-transmission intervals for other users.
Solution Approach 2:
The patent segments the transmission of system information by dividing it into different modification periods and transmission occasions. The system information is split across multiple subframes within a modification period, with specific indication information transmitted at designated occasions, reducing the continuous resource occupation while ensuring complete delivery.
2Reliability
If system information is transmitted multiple times in multiple subframes to ensure complete reception, then the reliability of information reception is improved, but the transmission resource overhead increases
Solution Approach 1:
The patent applies preliminary action by transmitting indication information in advance at specific occasions within the modification period. This indication information notifies terminals of upcoming system information transmissions, allowing terminals to prepare for reception and enabling the network to optimize resource allocation before actual data transmission occurs.
Solution Approach 2:
The patent enables terminals to self-manage the reception process by using the received indication information to autonomously determine when and where to receive system information. Terminals can independently monitor specific subframes and occasions without requiring continuous network control, reducing overall system resource overhead while maintaining reliable reception.
Data Source
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AI summary
The present invention discloses a method and an apparatus for transmitting system information, and a method and an apparatus for receiving system information. The method includes: acquiring, by a base station, a preset modification period of enhanced system information, where the enhanced system information is system information on which enhanced transmission needs to be performed; the modification period of the enhanced system information is an integer multiple of a modification period of non-enhanced system information; and the non-enhanced system information is system information that is transmitted, based on scheduling by using a control channel, in a system information window; and transmitting the enhanced system information in an enhanced transmission manner in the modification period of the enhanced system information according to a configured time-sequence location. According to the methods or the apparatuses in the present invention, occupied transmission resources can be reduced.