Receiver Power Mode Switching for Energy Reduction
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Solution Overview
Problem
Current receiver apparatuses in telecommunications networks face challenges in reducing power consumption, particularly in the receiver section, which is always active and contributes significantly to overall power usage, despite existing solutions like Discontinuous Reception (DRX) mode that turn the receiver off after inactivity, not fully optimizing power savings.
Innovation Solution
Implementing a method and apparatus that dynamically switch between two power modes within a connection state, using a power mode timer to transition from a high power mode to a low power mode during periods of low packet reception probability, allowing the receiver to remain active while minimizing power consumption without affecting system performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the receiver operates continuously in a connection state to maintain data reception capability, then system performance and data rate are improved, but power consumption increases
Solution Approach 1:
The receiver dynamically switches between first and second power modes based on packet reception probability and network timers. The system transitions from high power mode to low power mode when packet reception probability is low, and back to high power mode when packets are detected, optimizing the balance between power consumption and data reception capability.
Solution Approach 2:
The patent changes operational parameters by introducing multiple power modes with different power consumption levels. The receiver monitors packet reception probability and switches between power modes accordingly, adjusting the power consumption parameter to match actual communication needs rather than maintaining constant high power operation.
2Use of energy by moving object
If Discontinuous Reception (DRX) mode is used to turn off the receiver after inactivity, then power consumption is reduced, but system performance may be affected due to receiver shutdown
Solution Approach 1:
The patent segments the connection state into multiple power modes rather than a single on/off state. The first power mode provides high performance for active data reception, while the second power mode provides power savings during low-activity periods, allowing the system to maintain performance when needed while saving power during inactivity.
Solution Approach 2:
The receiver uses feedback from packet reception probability assessments and network timer information to dynamically adjust its power mode. This feedback mechanism ensures the receiver stays in appropriate power modes based on actual communication conditions, maintaining system performance when packets are expected while saving power when they are not.
3Reliability
If the receiver remains active throughout the connection state, then data reception reliability is maintained, but power consumption cannot be optimized
Solution Approach 1:
The patent applies partial action by operating the receiver at reduced power levels (second power mode) when packet reception probability is low, rather than maintaining full power operation. This partial operation is sufficient for maintaining reliability during low-activity periods while significantly reducing power consumption compared to continuous full-power operation.
Data Source
AI summary
A receiver is operated in a first power mode, for example a high power mode, during a first portion of a particular connection state (for example, a RRC_CONNECTED state in LTE when the UE receiver is on) of a communication protocol being used by the telecommunications network, and a second power mode during a second portion of the particular connection state, for example a low power mode.