Wireless Access Interface Transmission Unit Allocation
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Solution Overview
Problem
Current wireless communications networks, particularly those based on LTE architecture, face challenges in supporting a diverse range of devices and applications due to their fixed frame structure, which is not adaptable to varying use cases such as high-speed data transmission, low-latency communications, and machine-type communications.
Innovation Solution
The implementation of a wireless access interface that configures a plurality of transmission units, allowing for the formation of combined transmission units which can be allocated to communications devices, enabling flexible frame structures tailored to specific use cases by dividing system bandwidth in time and frequency, and indicating the type of signals to be transmitted or received in each unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed frame structure is used for wireless access interface, then the system can maintain simple and standardized operations, but it cannot adapt to diverse applications and use cases
Solution Approach 1:
The frame structure is segmented into multiple transmission units, each independently configurable for different purposes. This allows the system to divide the overall frame into smaller, adaptable segments that can be customized for various applications while maintaining manageable complexity through modular design
Solution Approach 2:
The frame structure transitions from a fixed, static configuration to a dynamic, configurable one where transmission units can be adaptively assigned and reconfigured based on application requirements, enabling the system to respond to diverse use cases while preserving operational simplicity through standardized configuration mechanisms
2Productivity
If transmission units are configured for specific use cases, then resource allocation efficiency is improved, but signaling overhead increases
Solution Approach 1:
Instead of providing complete configuration details for all transmission units, the system uses partial signaling where only essential parameters are explicitly indicated, and other parameters are derived or inferred from standardized configurations, reducing signaling overhead while maintaining efficient resource allocation
Solution Approach 2:
Configuration patterns and defaults are pre-established for common use cases, allowing the system to prepare transmission unit configurations in advance. This preliminary configuration reduces the need for extensive real-time signaling while enabling efficient resource allocation when specific use cases are activated
Data Source
AI summary
A communications device is configured to transmit and/or receive signals via a wireless access interface provided by a mobile communications network. The wireless access interface comprising a plurality of transmission units each comprising one or more communications resource elements formed by dividing a system bandwidth in tune and frequency. One or more transmission units are configured to form combined transmission units, which can be allocated to communications devices for receiving or transmitting signals. The communications device is configured to receive an indication of a combined transmission unit providing one or more of the transmission units for the communications device, and receive an indication for each of the one or more transmission units of the combined transmission unit of whether the transmission unit is for transmitting signals, whether the transmission unit is for receiving signals or whether the transmission unit is not to be used for transmitting or receiving signals.