Configurable Frame Format for Flexible Radio Access Networks
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Solution Overview
Problem
Current radio communication systems, such as LTE/LTE-A, face limitations in responding to dynamic changes in requirements due to the use of a common frame format, leading to increased complexity and overhead, which reduces the capability of the radio access network.
Innovation Solution
A base station and terminal apparatus configuration that allows for a configurable frame format with adjustable radio parameters based on the transmission medium, enabling flexible duplex schemes, subcarrier spacing, and simultaneous use of different resource arrangements to accommodate various requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a common frame format is used in radio communication systems, then system complexity is reduced and ease of operation is improved, but the ability to respond to dynamic changes in requirements deteriorates
Solution Approach 1:
The patent applies dynamics by making the frame format configurable rather than fixed. The base station can dynamically adjust radio parameters including frame format based on communication bandwidth and service requirements. This allows the system to adapt to changing conditions while maintaining operational simplicity through automated configuration.
Solution Approach 2:
The patent implements parameter changes by allowing radio parameters such as frame format, subcarrier spacing, and cyclic prefix length to be modified according to service requirements and channel conditions. This enables the system to optimize performance for different scenarios (e.g., LTE, LTE-A, 5G) without increasing fundamental system complexity.
2Adaptability or versatility
If multiple frame formats are introduced to satisfy diverse requirements, then adaptability is improved, but device complexity and overhead increase
Solution Approach 1:
The patent applies universality by designing a single configurable frame format structure that can serve multiple purposes. The same basic frame format is used across different scenarios (LTE, LTE-A, 5G) with parameters adjusted to meet specific requirements. This avoids the need for entirely separate frame formats for each service type, reducing overall system complexity while maintaining adaptability.
3Ease of operation
If frame format is fixed for each duplex scheme, then ease of operation is improved, but the capability of radio access network to respond to changing requirements deteriorates
Solution Approach 1:
The patent makes the frame format dynamic by allowing configuration based on communication bandwidth and service requirements. The base station can adjust frame format parameters in real-time according to channel conditions and traffic demands, ensuring reliable communication while maintaining ease of operation through automated management.
Data Source
AI summary
Provided are a base station apparatus, a terminal apparatus, and a communication method that achieve a radio access network capable of being flexibly compatible with various requirements. The base station apparatus according to an aspect of the present invention is a base station apparatus for communicating with the terminal apparatus, the base station apparatus includes a transmission unit configured to generate a transmit signal based on a frame format in which a radio parameter is configurable, and the radio parameter configured in the frame format is configured based on a radio medium through which the transmission unit transmits the transmit signal.