Mobile Station Paging Channel Power Reduction via Early Symbol Termination
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Solution Overview
Problem
Mobile communication devices face challenges in power saving during paging operations, as they need to continuously monitor time slots for potential paging messages, leading to increased power consumption.
Innovation Solution
Implementing a null General Paging Message (GPM) detection mechanism and early decoding and termination mechanism to allow mobile stations to determine if they are paged earlier than conventional designs, enabling them to stop receiving and decoding symbols before the end of a time slot and enter standby mode if not paged.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mobile stations continuously monitor the paging channel to ensure reliable paging message reception, then paging reliability is improved, but power consumption increases
Solution Approach 1:
The patent applies partial action by having the mobile station receive only a predetermined number of symbols (less than the complete frame) to detect null GPM. This partial reception is sufficient to determine whether paging messages are present, allowing the station to avoid receiving the entire frame when no paging is needed, thus reducing power consumption while maintaining reliable paging detection
Solution Approach 2:
The patent implements preliminary action through early null GPM detection. The mobile station performs preliminary detection of null GPM by receiving and processing only the first predetermined number of symbols before the complete frame is received. This preliminary action enables early determination of paging status, allowing the station to enter standby mode earlier and save power
2Measurement precision
If mobile stations receive complete frames to ensure accurate paging message detection, then detection accuracy is improved, but power consumption increases
Solution Approach 1:
The patent demonstrates that partial reception of a predetermined number of symbols is sufficient for accurate null GPM detection. The mobile station does not need to receive the complete frame to accurately determine whether paging messages are present, achieving both detection accuracy and power savings through this partial action approach
3Use of energy by moving object
If mobile stations monitor the paging channel for shorter periods to save power, then power consumption is reduced, but the risk of missing paging messages increases
Solution Approach 1:
The patent uses preliminary action by performing null GPM detection early in the frame reception process. The mobile station receives and processes the first predetermined number of symbols to detect null GPM before the complete frame is received. This preliminary detection ensures reliable paging message identification while enabling the station to enter standby mode earlier, thus reducing power consumption without missing paging messages
Solution Approach 2:
The patent implements feedback through the null GPM detection mechanism. The mobile station receives symbols, detects null GPM, and based on this detection result, determines whether to continue receiving the complete frame or enter standby mode. This feedback-driven decision ensures reliable paging detection while optimizing power consumption based on actual paging conditions
Data Source
AI summary
A mobile communication device is provided with a wireless module and a controller module. The wireless module performs wireless transceiving to and from a service network. The controller module receives, on a paging channel, a first predetermined number of symbols in a frame of a time slot via the wireless module, and determines whether to enter a standby mode according to the first predetermined number of symbols. Also, the controller module stops the receiving of subsequent symbols in the frame by deactivating the wireless module in response to entering the standby mode.