Terminal Cell Broadcast Detection via Hysteresis Timer
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Solution Overview
Problem
In poor network environments, user equipment (UE) experiences increased power consumption and communication resource occupation due to continuous attempts to acquire cell broadcast service information when CBS is disabled, and delayed reception of system information changes due to unreliable paging messages.
Innovation Solution
A detecting method and device for a terminal that activates a hysteresis timer when common traffic channel information cannot be decoded, allowing proactive reading of SIB5 information to determine the enabled or disabled state of cell broadcast, and accordingly continuing or stopping cell broadcast message reception, thereby reducing unnecessary decoding operations and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal continuously attempts to acquire CBS information when CBS is disabled, then the terminal can ensure it does not miss CBS messages, but power consumption increases and communication resources are occupied
Solution Approach 1:
The terminal proactively reads SIB5 information in advance to determine whether CBS is enabled or disabled before continuously attempting to acquire CBS messages. This preliminary check allows the terminal to avoid unnecessary continuous acquisition attempts when CBS is disabled, thereby reducing power consumption while ensuring reliability when CBS is actually enabled.
2Use of energy by moving object
If the terminal waits for paging messages to notify system information changes, then the terminal can conserve power by not continuously monitoring, but the terminal may miss important system information changes due to paging message delivery failures
Solution Approach 1:
The terminal uses the hysteresis timer as a feedback mechanism to monitor whether common traffic channel information can be successfully decoded. When decoding fails continuously for M cycles, the timer activates and triggers proactive SIB5 reading after N additional failed cycles, creating a feedback loop that adapts to network conditions and ensures reliable system information acquisition.
Solution Approach 2:
Instead of passively waiting for paging messages, the terminal proactively reads SIB5 information when decoding failures are detected, taking preliminary action to ensure system information is acquired even when paging messages fail to deliver, thus improving reliability without requiring continuous monitoring.
3Use of energy by moving object
If the terminal proactively reads SIB5 information when decoding fails, then power consumption is reduced by stopping unnecessary decoding, but the terminal may miss CBS messages if SIB5 reading also fails
Solution Approach 1:
The terminal dynamically adjusts its behavior based on network conditions. When common traffic channel decoding succeeds, the terminal continues normal CBS message acquisition. When decoding fails continuously for M cycles followed by N additional failed cycles during hysteresis timer activation, the terminal switches to proactive SIB5 reading mode, and only stops CBS message acquisition when SIB5 explicitly indicates CBS is disabled, ensuring dynamic adaptation to maintain reliability.
Data Source
AI summary
The present invention provides a detecting method and device for a terminal and relates to the communications field, which can, when cell broadcast and paging messages cannot be acquired in time, read system information proactively within an appropriate time to acquire an enabled or disabled state of cell broadcast at that time, and, according to the current state, continue or stop receiving cell broadcast information messages, so as to decrease unnecessary decoding operations, reduce power consumption of the terminal, increase a cell broadcast message receiving rate, and save communication resources. This is implemented by defining a first time on a terminal and attempting to decode common traffic channel information in a cycle preset by a hysteresis timer, and further, attempting to receive system information according to different decoding results, and finally, according to a system state indicated in the system information, taking an action to continue or stop the reception.