Carrier Aggregation Group Information for Wireless Handover
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Solution Overview
Problem
Current carrier aggregation management and control in wireless networks are inadequate, leading to inefficiencies in bandwidth utilization and handover processes, as existing methods fail to accurately determine which cells can be aggregated and do not provide sufficient information for optimal resource allocation and handover selection.
Innovation Solution
The implementation of a method and apparatus that provide information on groups of cells that can be aggregated together, enabling improved control and management of carrier aggregation by establishing carrier aggregation group information, setting access control policies, and performing measurements on these groups, which are then used for handover decisions and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If carrier aggregation is implemented to increase bandwidth availability, then user experience and data transmission capacity are improved, but management and control complexity of cell aggregation increases
Solution Approach 1:
The patent applies preliminary action by pre-establishing carrier aggregation group information that identifies which cells can be aggregated together before handover occurs. The source base station retrieves this pre-configured information to determine candidate cells for aggregation, eliminating the need for complex real-time compatibility checks during handover decision-making.
Solution Approach 2:
The patent introduces carrier aggregation group information as an intermediary data structure that mediates between cell configuration and handover decisions. This intermediary contains pre-determined aggregation compatibility information, allowing the source base station to efficiently identify suitable target cells without directly computing aggregation feasibility during the handover process.
2Reliability
If comprehensive cell measurement and evaluation is performed for handover selection, then handover success rate is improved, but handover decision time and signaling overhead increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring carrier aggregation group information that identifies compatible cell combinations. During handover, the source base station retrieves this pre-established information to quickly identify candidate cells that are already known to be aggregation-compatible, significantly reducing the time required for handover decision-making while maintaining reliable handover selection.
3Productivity
If detailed carrier aggregation group information is provided to base stations, then resource allocation optimization is improved, but information management complexity and signaling overhead increase
Solution Approach 1:
The patent applies segmentation by dividing cell information into distinct components: carrier aggregation group information that identifies which cells can be aggregated, and separate handover evaluation parameters. This segmentation allows base stations to process only the relevant aggregation compatibility information when making handover decisions, reducing information management complexity while maintaining optimization capability.
Data Source
Figure 1~2B
Figure 2C~2E
Figure 2F~2H
AI summary
A method and an apparatus are described by which carrier aggregation in a radio network is controlled on the basis of a group of cells which can be aggregated. For example, carrier aggregation group information regarding the group of cells which can be aggregated can be established, transmitted, read and the like, access control policy regarding the group of ceils in the radio network which can be aggregated can be set. Moreover, a method and an apparatus is provided by which carrier aggregation in a radio network is controlled, wherein an access control policy regarding a part of the radio network is set.