Group Radio Resource Management via Cell Signal Correlation
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Solution Overview
Problem
Current wireless communication systems face challenges in reliable radio resource management, particularly in unlicensed spectrum bands due to Clear Channel Assessment (CCA) procedures and interference, which affect the robustness of radio resource management frameworks and timing reliability across cells.
Innovation Solution
A method for joint radio resource management across a group of cells, where correlation measures between signal attributes of signals received in primary and secondary cells are used to determine and transmit radio resource management information, allowing for more reliable timing and resource allocation, even when primary cell signals are unreliable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If Clear Channel Assessment (CCA) procedures are used in unlicensed spectrum bands, then interference management is improved, but reliability of radio resource management information transmission deteriorates
Solution Approach 1:
The patent combines multiple cells into a group where radio resource management information is jointly determined. When the primary cell's signal is unreliable due to CCA procedures, the network can use correlated signals from secondary cells within the same group to maintain reliable RRM information transmission, thus resolving the contradiction between interference management and transmission reliability.
Solution Approach 2:
The patent introduces correlation measures as an intermediary mechanism to transfer RRM information from secondary cells to the primary cell context. By evaluating signal correlation between cells, the system can indirectly obtain reliable RRM information through secondary cells when primary cell transmission is blocked by CCA procedures, maintaining reliability while respecting interference constraints.
2Adaptability or versatility
If Clear Channel Assessment (CCA) procedures are used in unlicensed spectrum bands, then channel access fairness is improved, but timing reliability across cells deteriorates
Solution Approach 1:
The patent merges timing information from multiple correlated cells to establish reliable timing references. When CCA procedures cause unpredictable timing in the primary cell, the network can derive timing information from secondary cells within the same group that have not been blocked by CCA, maintaining timing reliability while preserving channel access fairness through proper cell grouping and correlation evaluation.
3Manufacturing precision
If cell-specific radio resource management is used, then resource allocation precision is improved, but robustness of radio resource management framework deteriorates
Solution Approach 1:
The patent creates a multi-functional RRM framework that operates at both cell-specific and group levels. The system maintains precise cell-specific resource allocation while adding a group-level layer that provides robustness through correlated cell evaluation. This universal approach allows the framework to adapt to varying conditions by switching between cell-specific and group-based RRM strategies.
Data Source
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AI summary
A method comprising receiving grouping information indicative of a group of cells comprising a first cell and one or more second cells, determining radio resource management information for a radio resource management activity related to the first cell, and transmitting of the radio resource management information in the first cell. Wherein the determining the radio resource management information comprises evaluating a received signal of at least one of the second cells, or evaluating a received signal of at least one of the second cells in addition to evaluating a received signal of the first cell.