RRC Configuration Coordination for Dual Connectivity
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Solution Overview
Problem
Current mobile communication systems face challenges in efficiently supporting dual connectivity for user equipment (UE) due to resource shortages and the need for high-speed data services, requiring advanced techniques for radio resource control (RRC) configuration between base stations.
Innovation Solution
A method for determining RRC configuration in a wireless communication system supporting dual connectivity, where a first base station transmits its RRC configuration to a second base station, and both stations coordinate based on the UE's capability, with the option to adjust bearer configurations and handover requests to optimize resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If RRC configuration is transmitted between base stations for dual connectivity, then network operation efficiency is improved, but device complexity increases
Solution Approach 1:
The patent introduces an intermediary mechanism where the first base station acts as a mediator to transmit RRC configuration information to the second base station. This intermediary approach enables coordinated dual connectivity configuration without requiring direct complex interactions between all network elements, thus improving network operation efficiency while managing device complexity through structured information exchange.
Solution Approach 2:
The RRC configuration process is segmented into distinct components: UE capability information, first RRC configuration from the first base station, and second RRC configuration for the second base station. This segmentation allows each base station to handle specific configuration tasks independently based on transmitted capability information, improving operational efficiency while reducing the complexity burden on individual devices through divided responsibilities.
2Productivity
If RRC configuration is coordinated between base stations, then resource management is improved, but information transmission overhead increases
Solution Approach 1:
The patent extracts only the essential UE capability information required for RRC configuration coordination and transmits it between base stations. By taking out only the necessary capability data rather than complete configuration sets, the system achieves improved resource management efficiency while minimizing information transmission overhead through selective information extraction and exchange.
3Adaptability or versatility
If dual connectivity is supported with RRC configuration coordination, then service coverage is improved, but device capability requirements increase
Solution Approach 1:
The patent employs parameter changes by dynamically adjusting RRC configuration parameters based on transmitted UE capability information. The first base station determines appropriate configuration parameters and transmits them to the second base station, enabling dual connectivity support with adapted parameters that match actual UE capabilities. This approach improves service coverage and adaptability while preventing device capability requirements from exceeding actual UE capabilities through parameter optimization.
Data Source
AI summary
A method for determining a radio resource control (RRC) configuration in a wireless communication system supporting dual connectivity, and an apparatus supporting the same is disclosed. The method for determining, by a base station (BS), a radio resource control (RRC) configuration in a wireless communication system supporting dual connectivity, includes transmitting, by a first BS, a first RRC configuration of a serving cell of the first BS or remained user equipment (UE) capability to a second BS configured in a UE, and receiving, by the first BS, a second RRC configuration of a serving cell of the second BS configured in the UE from the second BS. The first BS and the second BS are involved in dual connectivity for the UE, and the second RRC configuration is determined by the second BS based on the first RRC configuration or the remained UE capability.