Base Station Transmitter Power Control via TDMA Idle Timeslots
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Solution Overview
Problem
Base station devices in mobile communication networks face high energy consumption costs, leading to increased rent expenses and frequent power source replacements, necessitating improved energy efficiency to reduce operational costs.
Innovation Solution
Implementing a time-division multiple access (TDMA) transmitter with an electronic processor that designates active and idle timeslots, de-keying the transmitter during idle periods to conserve energy, and re-keying for synchronization, depending on whether the transmission is voice or data, to optimize power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the transmitter operates continuously to maintain communication readiness, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The transmitter operates periodically rather than continuously, activating during specific timeslots (active timeslots) and remaining inactive during others (idle timeslots). This periodic operation maintains communication functionality while significantly reducing average power consumption, directly resolving the contradiction between reliability and energy usage.
Solution Approach 2:
The system dynamically adjusts transmitter operation based on communication needs, transitioning between active and idle states. The electronic processor determines when the transmitter should be active versus idle, creating a dynamic operation mode that optimizes both reliability and power consumption rather than using a static continuous operation mode.
2Use of energy by moving object
If the transmitter is deactivated during idle timeslots to save energy, then power consumption is reduced, but synchronization capability deteriorates
Solution Approach 1:
Synchronization information is transmitted in advance during active timeslots before the transmitter enters idle mode. Mobile stations receive and store this synchronization data beforehand, allowing them to maintain synchronization without requiring continuous transmitter operation during idle timeslots, thus saving energy while preserving synchronization capability.
Solution Approach 2:
Synchronization information acts as an intermediary that carries timing and frequency reference data from the base station to mobile stations during active timeslots. This information mediates the synchronization relationship, allowing mobile stations to maintain synchronized operation even when the transmitter is inactive during idle timeslots.
Data Source
AI summary
Base station device with reduced power consumption and method thereof. The base station device includes a transmitter configured to implement time-division multiple access (TDMA). The transmitter transmits payload signals in a TDMA frame including a first timeslot and a second timeslot, with one of the first timeslot and the second timeslot designated as an active timeslot and the other of the first timeslot and the second timeslot designated as an idle timeslot. The base station device includes an electronic processor coupled to the transmitter and configured to control transmission of calls through the transmitter. The electronic processor is configured to transmit payload signals during the active timeslot and de-key the transmitter during the idle timeslot. During a voice call, the electronic processor is configured to re-kay the transmitter during a portion of the idle timeslot to transmit synchronization information.