Dual Connectivity Base Station Configuration via Intermediary Mediator
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently handling carrier aggregation and dual connectivity, particularly in managing multiple carrier frequencies and base station connections for enhanced data transmission and reception.
Innovation Solution
A network architecture that enables a communication device to simultaneously connect to multiple base stations using different carrier frequencies, allowing for dual connectivity by configuring radio bearers and modifying configurations through specific message exchanges and resource allocations, ensuring optimal resource utilization and signal strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a device connects to multiple base stations using different carrier frequencies for dual connectivity, then data transmission efficiency and coverage are improved, but device complexity and configuration management become more difficult
Solution Approach 1:
The master base station acts as an intermediary that centrally manages the configuration of radio bearers for both master and secondary cell groups. It generates and sends configuration messages to the wireless device, coordinating the complex dual connectivity setup without requiring the device to manually manage multiple connections, thus reducing device complexity while maintaining high data transmission efficiency
Solution Approach 2:
The master base station performs multiple functions including acting as a gateway for data forwarding between master and secondary cell groups, managing radio bearer configurations, and coordinating handover procedures. This multi-functional approach consolidates control functions that would otherwise be distributed and complex, simplifying the overall system while enabling efficient dual connectivity
2Productivity
If carrier aggregation is used to utilize multiple carrier frequencies, then system capacity and data rate are improved, but resource allocation and signal management become more complex
Solution Approach 1:
The master base station serves as a central intermediary that manages resource allocation across multiple carrier frequencies. It generates configuration messages that define radio bearers associated with specific cell groups and carrier frequencies, and coordinates the allocation of uplink and downlink resources. This centralized management simplifies the complex task of resource allocation while maximizing system capacity through efficient carrier aggregation
Data Source
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Figure 3A
AI summary
A network comprising a first base station (BS) and a second BS is configured to execute instructions of the first BS connecting to a communication device via a first cell of the first BS with a signaling radio bearer (SRB); the second BS as a secondary node (SN) connecting to the communication device via a second cell while the first BS as a master node (MN) connecting to the communication device; the first BS transmitting a SN Modification Request message to a second BS to add or modify a configuration of the SN for the communication device in dual connectivity (DC) ; and the second BS transmitting a SN Modification Request Acknowledge message comprising to the first BS in response to the SN Modification Request message, wherein the SN Modification Request Acknowledge message comprises a new or modified configuration and a random access (RA) channel (RACH) configuration.