Cell Service Wake-Up Using Uplink Reference Signals
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Solution Overview
Problem
The high energy consumption of network devices in communication systems, particularly in 5G networks, poses a significant challenge for operator network deployment and expansion, necessitating the development of energy-saving solutions.
Innovation Solution
A method and device that detect uplink energy-saving reference signals when a cell is in an energy-saving state and initiate communication services only upon meeting specific conditions, such as signal strength or terminal count thresholds, using configured reference signals like pilot, SRS, or positioning signals, to optimize energy usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network device continuously monitors and maintains communication services in all cells, then the communication service availability is improved, but the energy consumption increases significantly
Solution Approach 1:
The cell is dynamically switched between normal state and energy-saving state based on service requirements. In energy-saving state, the cell does not send downlink common signals, reducing energy consumption. When uplink reference signals are detected, the cell can be activated back to normal state to provide services, thus resolving the contradiction between service availability and energy consumption.
Solution Approach 2:
The network device uses uplink reference signals from terminals as triggers to activate services only when needed. Instead of continuously maintaining services, the system allows terminals to initiate communication by sending reference signals, and the network device responds by activating the cell, achieving energy-saving while maintaining service capability on demand.
2Area of stationary object
If the network device activates communication services in energy-saving cells, then the service coverage is improved, but the energy consumption increases
Solution Approach 1:
Instead of continuous service provision, the cell operates periodically between energy-saving state (not sending downlink signals) and active state (when triggered by uplink reference signals). This periodic activation based on actual service needs reduces energy consumption while maintaining service coverage when required.
Solution Approach 2:
The system uses uplink reference signals as feedback indicators to determine when service activation is needed. Terminals send reference signals to indicate service requirements, and the network device uses this feedback to activate or deactivate cells accordingly, optimizing the balance between coverage and energy consumption.
3Reliability
If the network device sends downlink common signals continuously, then the service quality is improved, but the energy consumption increases
Solution Approach 1:
The patent extracts the essential function of downlink common signals and removes them during energy-saving periods. Instead of continuously sending downlink common signals for service maintenance, the system only sends these signals when actually needed for service activation, significantly reducing energy consumption while maintaining service quality when active.
Data Source
AI summary
The present invention provides a cell service control method, a signal configuration method, a signal transmission method, a device, and a terminal. The cell service control method comprises: when a first cell of a first network device is in an energy-saving state, the first network device detects an uplink energy-saving reference signal; and the first network device starts a communication service of the first cell according to the detected uplink energy-saving reference signal.