Cell Wake-Up Signaling for Energy-Efficient Wireless State Transitions
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Solution Overview
Problem
Existing technologies do not effectively define how to awaken a cell from an energy-efficiency state in wireless communication networks, leading to inefficiencies in energy consumption.
Innovation Solution
A method for sending an energy-efficiency signal by a terminal to assist or trigger a cell in an energy-efficiency state to perform a state-transition operation, using signals such as target sequences, uplink control channels, or MAC signaling to manage energy consumption dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a cell enters energy-efficiency state to reduce power consumption, then energy saving is improved, but the cell cannot respond timely to terminal wake-up needs
Solution Approach 1:
The patent applies preliminary action by having the terminal send an energy-efficiency signal before actually needing service restoration. The network side device receives this advance indication and proactively transitions the cell from energy-efficiency state to normal state, ensuring timely response. This resolves the contradiction by preparing the system in advance rather than reacting after the fact.
Solution Approach 2:
The patent implements feedback through the energy-efficiency signal mechanism where the terminal provides feedback information about its service needs to the network side device. This feedback loop enables the network to dynamically adjust cell states based on actual terminal requirements, balancing energy saving with reliable wake-up response.
2Reliability
If the network maintains more cells in normal state to ensure service availability, then service reliability is improved, but energy consumption increases
Solution Approach 1:
The patent applies dynamics by making the cell state flexible and adjustable rather than fixed. Cells can dynamically transition between energy-efficiency state and normal state based on real-time terminal needs. This dynamic state management allows the network to maintain service reliability only when needed while saving energy during low-activity periods.
Solution Approach 2:
The patent changes the operational parameter of cell state from a static configuration to a dynamic variable. By allowing cells to change their state parameter based on traffic conditions and terminal requests, the system optimizes the balance between energy consumption and service availability.
3Speed
If the terminal always monitors all cell states to ensure quick connection, then connection speed is improved, but terminal energy consumption increases
Solution Approach 1:
The patent extracts the monitoring function from the terminal and transfers it to the network side device. Instead of the terminal continuously monitoring all cell states (which would consume terminal energy), the network side device performs the monitoring and state management, with the terminal only needing to respond to relevant wake-up signals.
Solution Approach 2:
The energy-efficiency signal acts as an intermediary mechanism that mediates between the terminal's connection needs and the network's energy management. This intermediary allows the terminal to maintain fast connection capability without continuously monitoring all cell states, as the signal carries the necessary state information from the network.
Data Source
AI summary
A method for sending an energy-efficiency signal, a state transition method, a terminal and a network side device are provided. The method includes: sending the energy-efficiency signal to a network side device, wherein the energy-efficiency signal is used to assist or trigger a cell in an energy-efficiency state to perform a state-transition related operation, wherein the energy-efficiency signal is generated by the terminal; wherein the cell in the energy-efficiency state includes: at least one serving cell of the terminal, and/or, at least one neighbor cell of the serving cell.