Consolidated Power Saving Class for Wireless Base Stations
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Solution Overview
Problem
In wireless networks, the increasing number of power saving classes (PSCs) reduces the opportunities for mobile stations to enter a sleep state, leading to increased power drain and shortened battery life, as each PSC operates independently and requires the transceiver to remain awake for multiple listening intervals.
Innovation Solution
A method and system for consolidating PSCs by identifying a primary application connection, defining a consolidated PSC based on its demand properties, and aggregating other connections with it, allowing for deactivation and reactivation based on traffic indicators to optimize sleep states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple power saving classes are used to support different application connections, then service diversity and adaptability are improved, but the number of listening intervals increases and power consumption increases
Solution Approach 1:
The patent consolidates multiple independent power saving classes into a single unified power saving class. The base station groups multiple application connections (VoIP, FTP, etc.) that were previously handled by separate PSCs into one consolidated PSC, allowing the mobile station to use a single listening interval schedule instead of multiple independent ones, thereby reducing power consumption while maintaining support for diverse services
Solution Approach 2:
The consolidated power saving class is designed to handle multiple types of application connections simultaneously. By creating a universal PSC that can accommodate real-time connections (VoIP, PTT) and non-real-time connections (FTP) within a single class structure, the system eliminates the need for multiple specialized PSCs, reducing the overall number of listening intervals required
2Adaptability or versatility
If multiple independent power saving classes operate simultaneously, then support for mixed applications is improved, but sleep state opportunities decrease
Solution Approach 1:
The patent merges multiple independent PSCs into a single consolidated PSC that handles all application connections. This consolidation allows the mobile station to enter sleep state during unified listening intervals rather than being constrained by multiple overlapping independent schedules, thereby extending sleep state duration while still supporting mixed applications through the universal PSC structure
3Reliability
If each power saving class operates independently with its own schedule, then service-specific optimization is improved, but transceiver sleep opportunities are reduced
Solution Approach 1:
The patent combines multiple service-specific PSCs into a single consolidated PSC that maintains service-specific optimization through prioritization mechanisms. The base station identifies a primary application connection and creates the consolidated PSC based on its demand properties, then consolidates other connections with appropriate prioritization, ensuring service-specific performance requirements are met while enabling unified sleep scheduling that reduces power drain
Solution Approach 2:
The consolidated PSC employs dynamic prioritization where the base station identifies a primary application connection and adjusts the listening interval schedule based on its demand properties. Other application connections are consolidated with dynamic prioritization levels, allowing the system to adaptively optimize for different service requirements while maintaining a unified sleep schedule that reduces overall power consumption
Data Source
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AI summary
A method in a base station of facilitating the generation of a consolidated power saving class, comprises receiving (214) from a mobile station a deactivation notice and transmitting (216) traffic to the mobile station, including embedding (220) in the transmitted traffic a reactivation indicator that, when received by the mobile station, can be used by the mobile station to reactivate a consolidated power saving class associated with multiple application connections.