Cell Activation Triggered by UE Presence Indication
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently activating cells based on the presence of user equipment within their coverage, leading to inefficient resource allocation and potential delays in cell activation.
Innovation Solution
A distributed unit in the wireless communication network obtains an indication of user equipment presence within its coverage and sends a message to a central unit for cell activation, allowing for proactive activation decisions based on user equipment presence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cells are activated continuously to ensure immediate service availability, then service reliability is improved, but energy consumption increases
Solution Approach 1:
The system performs preliminary detection of user equipment presence in the cell coverage area before activating the cell. The distributed unit monitors for UE presence indicators and only activates the cell when UE is detected, rather than maintaining continuous activation. This preliminary action resolves the contradiction by preparing the system to activate only when needed, ensuring reliability when users are present while avoiding unnecessary energy consumption when no users are in coverage.
2Use of energy by moving object
If cells are activated only when user equipment is detected, then energy consumption is reduced, but activation delay increases
Solution Approach 1:
The distributed unit continuously monitors for UE presence indicators in the cell coverage area before activation is requested. This preliminary monitoring ensures that when UE enters the coverage, the activation can be triggered immediately without detection delay, resolving the contradiction by maintaining low energy consumption while eliminating activation delay through advance preparation.
Solution Approach 2:
The system implements a feedback mechanism where the distributed unit receives UE presence indicators and responds by activating the cell when needed. This feedback loop ensures timely activation response while maintaining energy efficiency during periods of no UE presence, resolving the contradiction between rapid activation and energy savings.
3Stability of the object's composition
If centralized control is used for cell activation decisions, then coordination is improved, but system complexity increases
Solution Approach 1:
The system segments the cell activation control function between the distributed unit and the central unit. The distributed unit performs local UE presence detection and sends activation requests to the central unit, which makes the final activation decision. This segmentation resolves the contradiction by distributing control responsibilities, maintaining coordination through centralized decision-making while reducing overall system complexity through localized detection functions.
Data Source
AI summary
Aspects relate to cell activation. A first apparatus (e.g., a distributed unit) may obtain a first indication that is indicative of whether a user equipment is present within a coverage of a cell served by the first apparatus. The first apparatus may then output a second indication based on the first indication to a second apparatus (e.g., a central unit). In some aspects, the outputting of the second indication may be based on the first indication indicating that the user equipment is present within the coverage of the cell.