Terminal Downlink Control Signaling Detection via Awakening Signals
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Solution Overview
Problem
In LTE systems, terminals face high overhead in control signaling detection due to periodic monitoring of the Physical Downlink Control Channel (PDCCH) even when there is no data interaction, leading to unnecessary power consumption.
Innovation Solution
Implementing a method where the base station sends awakening control signaling to the terminal at pre-configured times or upon entering a connected state, indicating when to perform downlink control signaling detection, thereby reducing unnecessary detection and conserving power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal performs periodic control signaling detection to ensure reliable communication, then the reliability of downlink control signaling reception is improved, but the power consumption and overhead increase
Solution Approach 1:
The terminal performs control signaling detection periodically at pre-configured detection occasions instead of continuously. The base station configures detection occasions including first detection occasions for first downlink control signaling and second detection occasions for second downlink control signaling. This periodic action at specific intervals maintains reliability while reducing power consumption compared to continuous detection.
Solution Approach 2:
The patent extracts and separates different types of control signaling detection into distinct detection occasions. First downlink control signaling is detected at first detection occasions while second downlink control signaling is detected at second detection occasions. This extraction allows the terminal to selectively perform detection only when necessary, reducing unnecessary power consumption while maintaining reliable reception of both signaling types.
2Speed
If the terminal continuously monitors control signaling to ensure timely data reception, then the responsiveness of data transmission is improved, but the overhead and power consumption increase
Solution Approach 1:
The terminal performs control signaling detection periodically at pre-configured detection occasions rather than continuously. Detection occasions are strategically configured to include first detection occasions for first downlink control signaling and second detection occasions for second downlink control signaling. This periodic approach maintains timely responsiveness to data transmission while reducing the quantity of detection operations and associated overhead.
Solution Approach 2:
The patent segments control signaling detection into different types occurring at different detection occasions. First downlink control signaling is detected at first detection occasions while second downlink control signaling is detected at second detection occasions. This segmentation allows the terminal to efficiently handle different signaling types separately, reducing overall detection overhead while maintaining responsiveness to both first and second downlink control signaling.
Data Source
AI summary
A method for downlink control signaling detection, applied to a terminal, includes: receiving awakening control signaling sent by a base station, the awakening control signaling including indication information for the terminal to perform control signaling detection; and performing the control signaling detection according to the awakening control signaling.