W-CDMA Paging Indicator Scheduling for Power Reduction
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Solution Overview
Problem
Current communication apparatuses face challenges in reducing power consumption during idle mode in W-CDMA downlink receivers, as they require continuous reception of paging indicators, leading to increased power usage.
Innovation Solution
The proposed solution involves a communication apparatus with a radio transceiver module, a baseband processing module, and a controller that dynamically determines shorter wake-up time intervals within periodic radio frames to activate these components only when necessary, reducing power consumption by deactivating them during idle periods and activating them during designated wake-up times to receive and process paging indicators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous reception of paging indicators is implemented, then reliable communication is ensured, but power consumption increases
Solution Approach 1:
The patent implements discontinuous reception by activating the radio transceiver module only during specific wake-up time intervals within periodic radio frames, rather than continuous operation. The controller determines wake-up time intervals based on paging indicator positions, enabling periodic monitoring at optimized times while remaining inactive during other periods, thus reducing power consumption while maintaining reliable paging indicator detection
2Use of energy by moving object
If wake-up time intervals are shortened, then power consumption is reduced, but reception reliability may be compromised
Solution Approach 1:
The controller pre-determines wake-up time intervals based on obtained paging indicator positions before actual reception occurs. By calculating and preparing the optimal activation times in advance using the paging period parameter and paging indicator parameter, the system ensures that the radio transceiver module is activated precisely when paging indicators are transmitted, maintaining reception reliability while minimizing active time
Solution Approach 2:
The system dynamically adjusts wake-up time intervals based on varying paging indicator positions within periodic radio frames. Rather than using fixed intervals, the controller adapts the activation timing according to the specific position where paging indicators are located, optimizing the balance between power consumption and reception reliability for each radio frame
Data Source
AI summary
A communication apparatus is provided. A radio transceiver module receives paging indicators according to a first activation signal. A baseband processing module receives the paging indicators from the radio transceiver module and processes the paging indicators according to a second activation signal. A controller obtains corresponding system frame numbers of periodic radio frames, obtains a corresponding paging indicator position in each periodic radio frame, obtains a first and a second wake up time interval distributed within each periodic radio frame according to the corresponding paging indicator position, generates the first and the second activation signal to respectively activate the radio transceiver module and the baseband processing module during the first and the second wake up time interval, wherein both a length of the first wake up time interval and a length of the second wake up time interval are smaller than a length of a periodic radio frame.