Adaptive System Information Transmission for Terminal Power Reduction
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Solution Overview
Problem
In the LTE system, terminals experience unnecessary power consumption due to receiving system information blocks regardless of the interval between network entries, as existing methods fail to minimize the frequency of receiving system information blocks effectively.
Innovation Solution
A method where a network device determines and transmits indication information about system information changes across multi-level time ranges, allowing terminals to accurately determine when system information has not changed, thereby reducing unnecessary receptions and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the terminal receives system information blocks according to fixed intervals, then the system information transmission is simple, but the terminal performs unnecessary operations when the interval is far smaller or far larger than the threshold value, causing unnecessary power consumption
Solution Approach 1:
The patent applies dynamics by making the system information transmission interval adaptive rather than fixed. The network device dynamically adjusts the transmission interval based on whether system information has changed, using indicators like systemInfoModification and valueTag to signal changes. This allows the terminal to adapt its receiving behavior to actual system information state, avoiding unnecessary receptions when information remains unchanged.
Solution Approach 2:
The patent changes the parameter of transmission interval from a fixed value to a variable that depends on system information state. By introducing change indicators (systemInfoModification flag and valueTag) that modify the terminal's receiving behavior based on actual information changes, the system optimizes power consumption while maintaining information freshness.
2Use of energy by moving object
If the terminal reduces the frequency of receiving system information blocks, then power consumption is reduced, but the terminal may miss important system information updates
Solution Approach 1:
The patent implements feedback mechanisms where the network device sends explicit indicators (systemInfoModification flag and valueTag) to inform the terminal about system information changes. The terminal uses these feedback signals to determine whether to receive system information blocks, ensuring reliable update reception only when necessary while reducing unnecessary receptions for power saving.
Solution Approach 2:
The network device performs preliminary action by sending change indicators before the terminal would otherwise receive system information blocks. This allows the terminal to proactively determine whether reception is needed based on advance information about system information state, avoiding unnecessary power consumption while ensuring updates are not missed.
3Reliability
If the terminal receives system information blocks frequently, then system information updates are captured reliably, but unnecessary receptions occur when the interval between network entries is far smaller or far larger than the threshold value
Solution Approach 1:
The patent applies partial action by having the terminal receive system information blocks only partially - specifically, only when change indicators signal that information has actually changed. Instead of receiving at every fixed interval, the terminal performs reception selectively based on system information state, reducing wasted time on unnecessary operations while maintaining reliable update capture.
Data Source
AI summary
Provided are an information transmission method and apparatus and a storage medium. The method includes: determining, by a network device, indication information about system information according to a system information state, where the indication information indicates a change condition of the system information within multi-level time ranges; and transmitting, by the network device, the indication information.