Wireless Measurement Reporting for Cell Activation
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Solution Overview
Problem
In next-generation wireless communication systems, there is a need for efficient measurement reporting mechanisms that allow distributed units to assess and manage cell activation and deactivation based on user equipment signals without a direct communication connection, while also mitigating interference and optimizing power coordination across cells.
Innovation Solution
A distributed unit measures signals associated with user equipment that do not have a communication connection and outputs this measurement information to a central unit, which determines whether to activate or deactivate cells, and can forward this information to other distributed units for interference mitigation and power coordination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If distributed units measure signals from user equipment without direct communication connection, then cell activation and deactivation management is improved, but device complexity increases
Solution Approach 1:
The measurement and reporting functionality is segmented into separate distributed units rather than being centralized. Each distributed unit independently measures signals from user equipment and generates measurement reports, which are then forwarded to the central unit. This segmentation improves adaptability for cell management while distributing the complexity across multiple simpler units rather than one complex centralized system.
Solution Approach 2:
The patent introduces an intermediary measurement reporting mechanism where distributed units act as intermediaries between user equipment and the central unit. These distributed units measure signals, generate reports, and forward them to the central unit, which makes the final cell activation/deactivation decisions. This intermediary layer simplifies the overall system architecture while enabling sophisticated cell management.
2Object-affected harmful factors
If measurement information is forwarded to other distributed units, then interference mitigation is improved, but loss of time increases
Solution Approach 1:
Measurement information is forwarded to other distributed units in advance before interference actually occurs. The central unit distributes measurement reports proactively to relevant distributed units, enabling them to prepare interference mitigation strategies ahead of time. This preliminary action allows the system to prevent interference rather than react to it, reducing the effective time loss.
Solution Approach 2:
The patent implements a feedback mechanism where measurement information is shared across distributed units, creating a network-wide awareness of signal conditions. Each distributed unit receives feedback about measurements made by other units, enabling coordinated interference mitigation. This feedback loop optimizes the timing of information exchange to balance interference prevention with minimal delay.
Data Source
AI summary
Aspects relate to signal measurements. A first apparatus (e.g., a distributed unit) may measure a signal associated with a user equipment that does not have a connection with the first apparatus. The first apparatus may output measurement information based on the signal measurement to a second apparatus (e.g., a central unit). In response, the second apparatus may output a message based on the measurement information. In some examples, the second apparatus may determine whether to activate or deactivate a cell associated with the first apparatus based on the measurement information, and send a corresponding message to the first apparatus. In some examples, the second apparatus may forward some or all of the measurement information to a third apparatus (e.g., another distributed unit or a base station) for use in interference mitigation operations and/or power coordination operations.