Macro Node Data Rate Coordination for Dual-Connected UEs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Maintaining quality-of-service (QoS) control and data rate control in wireless communications with user equipment (UEs) that have dual concurrent connections with both a macro cell and a small cell is challenging.
Innovation Solution
A macro wireless access network node sets data rates for communication between a local wireless access network node and a UE, sending this information to the local node to manage data communication effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If small cells are deployed to increase data communication capacity, then productivity is improved, but device complexity worsens due to the need to manage dual concurrent connections for UEs
Solution Approach 1:
The macro wireless access network node serves as an intermediary that centralizes QoS and data rate control functions. It receives QoS parameters from the core network, determines appropriate data rates, and communicates these rates to both the small cell and the UE. This mediator approach allows the small cell to focus on providing additional capacity while the macro node manages the complexity of coordinating multiple connections and enforcing QoS policies.
2Ease of operation
If data rate control is distributed to local nodes, then ease of operation is improved, but reliability worsens due to difficulty in maintaining QoS compliance across multiple nodes
Solution Approach 1:
The system implements feedback mechanisms where the macro wireless access network node monitors data rate compliance and QoS parameters across both macro and small cells. The macro node receives information about actual data rates from both nodes and adjusts control parameters accordingly, ensuring that QoS requirements are consistently met. This centralized monitoring and control feedback loop maintains reliability while allowing local nodes to operate with appropriate autonomy.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A first wireless access network node sets a data rate for communication of data between a second wireless access network node and a user equipment (UE) that is concurrently connected to the first wireless access network node and the second wireless access network node. The first wireless access network node sends information relating to the data rate to the second wireless access network node for use by the second wireless access network node in controlling data communication between the second wireless access network node and the UE.