RLC Sublayer Data Shunting for Mobile Network Capacity
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Solution Overview
Problem
Current mobile communication systems face challenges in providing optimized service, higher bandwidth, and better performance due to the limited cooperative working between Low Power Nodes (LPNs) and Macro eNBs, which restricts the ability of LPNs to assist in processing resources, especially in handling large data volumes.
Innovation Solution
A method and system where a master node shunts downlink data at the RLC sublayer to obtain shunted data packets and sends them to shunting nodes for processing, while converging uplink data packets from shunting nodes and user equipment to the core network, with adjustments based on signal quality and load, enabling efficient data transmission and processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If LPNs are deployed in macro network coverage, then network capacity and service optimization are improved, but the cooperative working between LPNs and Macro eNBs is limited and processing resources cannot be effectively utilized
Solution Approach 1:
The patent merges the functions of Macro eNB and LPN into a dual-node cooperative system where the Master Node (Macro eNB) and Secondary Node (LPN) work together through X2 interface signaling. The Master Node shunts downlink data to the Secondary Node, which then transmits to UE, creating a unified cooperative processing architecture that enables effective resource utilization and enhanced network capacity.
Solution Approach 2:
The Secondary Node (LPN) is designed with multi-functionality, serving both as a traditional access node and as a data shunting target. The node can simultaneously handle direct UE connections and processed shunted data packets, while the Master Node maintains both control plane management and user plane data transmission functions, enabling flexible resource allocation and enhanced adaptability.
2Productivity
If downlink data is shunted at RLC sublayer to shunting nodes, then bandwidth and service processing performance are enhanced, but system complexity increases due to additional nodes and coordination requirements
Solution Approach 1:
The patent segments the data transmission path into distinct functional segments: the Master Node handles control plane signaling and shunts user plane data to the Secondary Node via X2 interface. The Secondary Node specifically processes and transmits shunted data packets to UE. This segmentation allows complex functions to be distributed across specialized nodes, managing system complexity through functional decomposition.
Solution Approach 2:
The X2 interface acts as an intermediary mechanism between the Master Node and Secondary Node, providing standardized signaling protocols and data transmission paths. This intermediary layer simplifies the coordination complexity by establishing predefined communication rules and interfaces, reducing the burden on individual nodes while enabling enhanced cooperative functionality.
Data Source
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AI summary
Disclosed is a data transmission method. The method includes that: when downlink data is transmitted, a master node shunts, on a Radio Link Control (RLC) sublayer, the downlink data to obtain shunted data packets, and sends the shunted data packets to shunting nodes; the shunting nodes process the shunted data packets, and send the processed data packets to a User Equipment (UE); and when uplink data is transmitted, the master node converges data packets sent from the shunting nodes and data packets sent from the UE, and sends the converged data packets to a core network. Also disclosed is a data transmission system. With embodiments of the disclosure, mobile communications system is able to provide an optimized service, a higher bandwidth and better performance.