Quick Paging Channel With Compressed Identifiers
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Solution Overview
Problem
In wireless communication systems, access terminals often experience missed pages due to improper detection of quick paging bits, leading to increased power consumption and reduced battery life, as they cannot immediately transition from a sleep state to an active state to monitor for messages effectively.
Innovation Solution
The system generates a quick paging message with a variable or constant length, using compressed unique access terminal identifiers, and includes a field to indicate additional pages, allowing access terminals to efficiently determine if they need to remain active or transition to a sleep state based on their identifier presence, thereby reducing power consumption and missed pages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If access terminals periodically transition to idle state to monitor for paging messages, then the probability of missed pages is reduced, but power consumption increases and battery life decreases
Solution Approach 1:
The paging channel is segmented into two distinct parts: a quick paging indicator (QPI) that provides immediate notification of incoming pages, and the full paging message that contains detailed information. Access terminals only need to monitor the brief QPI portion rather than the entire paging message, significantly reducing the time spent in idle state and power consumption while maintaining reliable page detection.
Solution Approach 2:
The system performs preliminary action by sending the quick paging indicator before the full paging message. This allows access terminals to advance knowledge of incoming pages and make informed decisions about whether to wake up for the complete message, enabling proactive power management and reducing unnecessary idle state transitions.
2Reliability
If access terminals wake up frequently to monitor quick paging bits, then page detection reliability improves, but battery operated run time decreases
Solution Approach 1:
The essential paging notification function is extracted from the full paging message and placed into the quick paging indicator. This separation allows access terminals to obtain critical page detection information in a condensed format, minimizing wake-up duration and maximizing battery operated run time while maintaining reliable page detection through the extracted essential information.
3Reliability
If access terminals remain in idle state to monitor for paging messages, then missed pages are reduced, but time in sleep state decreases
Solution Approach 1:
The system implements periodic action through the structured paging cycle where quick paging indicators are transmitted at specific intervals followed by optional full paging messages. Access terminals can synchronize to this periodic structure, waking up only at QPI transmission times for brief durations, thereby minimizing time lost from sleep state while maintaining reliable page detection through regular periodic monitoring.
Data Source
AI summary
Systems and methods of generating quick paging messages having nearly unique identifiers and variable capacity are described. The system generates a quick paging message identifying an access terminal to indicate the presence of a scheduled paging message for that access terminal. The system generates a quick paging notification for each access terminal having a scheduled paging message and generates a compressed nearly unique identifier of each access terminal that is notified in the quick paging message. The compression technique can vary based on the number of bits allocated to the quick paging message as well as the number of access terminals notified in one quick paging message.