Dual Cellular Aggregation Capability Signaling for LTE-5G Networks
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Solution Overview
Problem
In a dual cellular system aggregation scenario, user equipment (UE) faces challenges in accurately indicating its capabilities to connect simultaneously with both LTE and 5G base stations, leading to potential misinterpretation by the network of its aggregation capabilities, resulting in inefficient resource allocation.
Innovation Solution
A communication device and network configuration that enables the UE to transmit 'first RAT-second RAT' joint aggregation capabilities, allowing simultaneous connection to both LTE and 5G networks, with the processing circuit executing instructions for connecting via multiple radio access technologies, receiving configurations, and transmitting data through both networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the UE indicates its aggregation capabilities using traditional separate RAT capability indication methods, then the network can receive capability information, but the network may misinterpret the joint aggregation capabilities leading to inefficient resource allocation
Solution Approach 1:
The capability indication is segmented into distinct types: first RAT sole aggregation capability, second RAT sole aggregation capability, and first RAT-second RAT joint aggregation capability. This segmentation allows the network to precisely understand which aggregation modes the UE supports, preventing misinterpretation and enabling accurate resource allocation decisions.
Solution Approach 2:
The patent introduces a capability indication message as an intermediary carrier that conveys aggregation capability information from the UE to the network. This intermediary structure ensures that joint aggregation capabilities are transmitted accurately without being confused with separate RAT capabilities, thereby improving both measurement precision and resource allocation efficiency.
2Productivity
If the UE connects to both LTE and 5G base stations simultaneously for dual cellular system aggregation, then peak data rate and throughput are improved, but the complexity of capability indication and network configuration increases
Solution Approach 1:
The capability indication message serves multiple functions: it indicates first RAT sole aggregation capability, second RAT sole aggregation capability, and first RAT-second RAT joint aggregation capability within a single message structure. This multi-functionality reduces the overall complexity of capability indication while enabling the UE to connect to both LTE and 5G networks simultaneously for improved peak data rate and throughput.
3Ease of operation
If the network configures second RAT aggregation based on incomplete or misinterpreted capability information, then connection setup is simplified, but resource allocation becomes inefficient
Solution Approach 1:
The UE performs preliminary action by transmitting complete and accurate capability information including joint aggregation capabilities before the network performs configuration. This preliminary transmission of comprehensive capability data enables the network to make accurate resource allocation decisions while maintaining simple connection setup procedures.
Data Source
AI summary
A communication device for handling dual cellular system aggregation includes a storage device for storing instructions and a processing circuit coupled to the storage device. The communication device connects to a network via a first radio access technology (RAT); transmitting a “first RAT-second RAT” joint aggregation capability and at least one of a first RAT sole aggregation capability and a second RAT sole aggregation capability to the network; receiving a second RAT configuration configuring a “first RAT-second RAT” joint aggregation; connecting to the network via a second RAT according to the second RAT configuration; and receiving a first data via the first RAT and a second data via the second RAT, after connecting to the network via both of the first RAT and the second RAT.