Wireless Backhaul Controller for Traffic Load Management
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Solution Overview
Problem
Current wireless communications networks face challenges in ensuring reliable backhaul connectivity, particularly in managing traffic loads and congestion, which can lead to service quality issues and inefficiencies when using integrated access and wireless backhaul techniques.
Innovation Solution
The implementation of infrastructure equipment with a receiver, transmitter, and controller to establish a wireless backhaul connection between infrastructure equipment, allowing for the transmission of uplink data to a core network while managing access requests through appropriate restrictions, using a wireless access interface to indicate whether infrastructure equipment can transmit requests in connected mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless backhaul connections are established between infrastructure equipment to enable flexible network deployment, then network adaptability and coverage extension are improved, but traffic load management and connection reliability become more complex
Solution Approach 1:
The patent segments the wireless backhaul connection management into distinct phases: connection establishment phase and data transmission phase. The controller separately manages connection setup messages and data traffic, allowing independent optimization of each function. This segmentation reduces the complexity of managing both connection control and traffic load simultaneously.
Solution Approach 2:
The patent introduces an intermediary indication message that conveys traffic load information from one infrastructure equipment to another. This intermediary mechanism allows equipment to make informed decisions about connection establishment based on current network conditions without requiring complex centralized control, thus improving adaptability while managing complexity.
2Speed
If infrastructure equipment transmits requests in connected mode to improve response time, then service speed is improved, but traffic congestion and reliability issues worsen
Solution Approach 1:
The patent implements a feedback mechanism where infrastructure equipment receives indications of traffic load conditions from the network. Based on this feedback, the controller dynamically adjusts whether to permit request transmissions in connected mode. When traffic load is high, transmissions are restricted to maintain reliability; when load is low, faster connected mode transmissions are permitted.
Solution Approach 2:
The patent makes the permission to transmit requests in connected mode dynamic rather than static. The controller adjusts transmission permissions based on real-time traffic conditions, allowing the system to adapt between speed-optimized mode and reliability-optimized mode as network conditions change, thus balancing both competing requirements.
3Reliability
If traffic restrictions are imposed on infrastructure equipment to ensure backhaul reliability, then connection reliability is improved, but service efficiency and productivity decrease
Solution Approach 1:
The patent implements periodic assessment of traffic conditions through received indications, allowing the system to alternately permit and restrict transmissions based on current network state. This periodic evaluation ensures that restrictions are applied only when necessary for reliability, maintaining high productivity during favorable conditions while ensuring reliability when needed.
Solution Approach 2:
The patent changes the operational parameter of request transmission permission based on traffic load conditions. The controller adjusts this parameter dynamically - switching between permitted and restricted states - to optimize the balance between reliability and productivity. This parameter change approach allows the system to achieve both goals under different operating conditions.
Data Source
AI summary
An infrastructure equipment for providing a wireless backhaul for another infrastructure equipment in a wireless communications network comprises a receiver configured to receive, from the other infrastructure equipment acting as a relay, uplink data transmitted by a communications device, a transmitter configured to transmit to the infrastructure equipment acting as a node via the wireless access interface, and a controller. The controller is configured to control the transmitter and receiver to establish a connection with the other infrastructure equipment, the connection providing the wireless backhaul for the transmission of data from the communications device to a core network of the wireless communications network via the other infrastructure equipment, and to transmit in a message on the downlink of the wireless access interface an indication of whether the other infrastructure equipment is permitted to transmit a request while in the connected mode.