Gateway Node Data Splitting for Dual Connectivity
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Solution Overview
Problem
Current wireless networks with access nodes and relay access nodes face limitations in utilizing dual connectivity, which restricts the ability of wireless devices to simultaneously communicate with multiple access points effectively, particularly in scenarios requiring enhanced coverage and throughput.
Innovation Solution
The system and method involve a gateway node that splits data packets addressed to a wireless device into two portions, transmitting one portion via a donor access node and another via a relay access node, each using a distinct bearer address, allowing the device to communicate with both nodes simultaneously through dual connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dual connectivity is utilized in networks with access nodes and relay access nodes, then coverage and throughput are improved, but device complexity and network configuration complexity increase
Solution Approach 1:
The patent segments the data transmission path by creating separate bearers for direct access node communication and relay access node communication. The gateway node divides data packets into different portions and routes them through different paths (direct bearer and relay bearer), allowing the network to achieve higher throughput through parallel transmission while managing complexity through structured segmentation of the communication path.
Solution Approach 2:
The gateway node acts as an intermediary that manages the complexity of dual connectivity by handling bearer establishment, data packet division, and routing decisions. This intermediary component abstracts the complexity from individual access nodes and wireless devices, enabling dual connectivity functionality while centralizing the management of configuration complexity at the gateway level.
2Reliability
If data is transmitted via multiple access nodes simultaneously, then network performance and coverage are enhanced, but data packet routing and bearer management complexity increase
Solution Approach 1:
The patent applies segmentation by dividing data packets into distinct portions, each assigned to different bearers with specific routing instructions. One portion is transmitted through a direct bearer to the access node, while another portion is transmitted through a relay bearer via the relay access node. This segmentation enables reliable multi-path transmission while simplifying bearer management through clear separation of data flows.
Solution Approach 2:
The gateway node performs preliminary actions by pre-establishing multiple bearers (direct bearer and relay bearer) before data transmission begins. The gateway configures the routing paths, assigns bearers to specific access nodes, and prepares the network infrastructure in advance, thereby reducing the complexity of real-time bearer management during active data transmission.
3Area of stationary object
If relay access nodes are deployed at coverage edges, then coverage area is extended, but network infrastructure complexity increases
Solution Approach 1:
The gateway node serves as an intermediary that manages the integration of relay access nodes into the existing network infrastructure. It handles the configuration, bearer establishment, and data routing for relay nodes, thereby extending coverage area through relay deployment while centralizing the management of infrastructure complexity at the gateway level rather than distributing it across multiple nodes.
Data Source
AI summary
Systems, methods, and processing nodes for communicating with a wireless device via at least two access nodes include receiving, at a gateway node, data addressed to a first network address of the wireless device, transmitting, via a donor access node, a first portion of the data within a first bearer addressed to a second network address of the wireless device, and transmitting, via a relay access node wirelessly coupled to the donor access node, a second portion of the data within a second bearer addressed to a third network address of the wireless device.