Carrier Aggregation Processing in Network Sharing Scenarios
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Solution Overview
Problem
Current carrier aggregation (CA) processing schemes are not applicable in network sharing scenarios due to the possibility of multiple operators sharing the same frequency or cell, which hinders efficient resource utilization and peak rate requirements in LTE-A systems.
Innovation Solution
A CA processing method and device that determine a second cell or frequency based on the PLMN ID and supported frequency of a CA user equipment, allowing CA to be performed on a second PLMN ID or frequency, and sending CA measurement control information to configure the second cell or frequency as a CA cell, enabling CA in network sharing scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple operators share the same frequency or cell in a network sharing scenario, then resource utilization is improved, but carrier aggregation processing becomes inapplicable due to PLMN ID conflicts
Solution Approach 1:
The patent segments the CA processing by separating the determination of the second cell into two independent steps: first determining the target PLMN ID based on the first PLMN ID, then determining the second cell based on the target PLMN ID and supported frequency. This segmentation allows the system to handle network sharing scenarios by properly managing PLMN ID relationships while maintaining CA functionality.
Solution Approach 2:
The patent introduces a target PLMN ID as an intermediary concept between the first PLMN ID and the second cell determination. This intermediary allows the system to resolve PLMN ID conflicts in network sharing scenarios by establishing a proper mapping relationship, enabling CA processing to work correctly when multiple operators share the same frequency or cell.
2Productivity
If CA is implemented to meet 1 Gbps downlink and 500 Mbps uplink peak rates, then data transmission rate is improved, but resource management complexity increases in network sharing scenarios
Solution Approach 1:
The patent segments the cell determination process into distinct steps (determining target PLMN ID, then determining second cell), which simplifies resource management in CA scenarios. This segmented approach allows the system to achieve high data transmission rates through CA while managing resource allocation complexity by handling PLMN ID and cell selection as separate, manageable tasks.
3Manufacturing precision
If CA measurement control information is sent to configure the second cell, then CA configuration accuracy is improved, but signaling overhead increases
Solution Approach 1:
The patent performs preliminary determination of the target PLMN ID and second cell before sending CA measurement control information to the UE. This preliminary action ensures that the network side has already identified the appropriate second cell for CA configuration, allowing for accurate CA setup while minimizing signaling overhead by avoiding unnecessary trial-and-error configuration attempts.
Data Source
AI summary
Embodiments of the present invention relate to the field of wireless communications technologies, and in particular, to a CA processing method and device, so as to provide a CA processing scheme applicable to a network sharing scenario. In the embodiments of the present invention, a second cell is determined according to a first PLMN ID used by a CA user equipment in a first cell and a frequency supported by the CA user equipment, where the first cell is a cell that the CA UE currently accesses, CA can be performed on a second PLMN ID supported by the second cell and the first PLMN ID used by the CA user equipment in the first cell, and a frequency used by the second cell can be supported by the CA user equipment; and, according to the determined second cell, a CA cell is configured for the CA user equipment.