Radio Resource Assignment for Physical Channels
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Solution Overview
Problem
In multi-carrier transmission systems, there is a challenge in optimally assigning radio resources to physical channels for transmitting different types of information in a downlink communication, particularly in determining how to allocate resources effectively for various channels such as common control channels, control signaling channels, and shared channels.
Innovation Solution
A transmission apparatus and method that assigns radio resources to each physical channel based on its type, utilizing receiving quality feedback to determine user selection and resource allocation, allowing for efficient transmission of information through the assigned resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If radio resources are assigned uniformly to all physical channels regardless of type, then resource allocation is simple, but communication efficiency and reliability deteriorate
Solution Approach 1:
The patent applies local quality by assigning different radio resources to different types of physical channels based on their specific requirements. Control signaling channels receive resources with specific time and frequency offsets from downlink shared channels, while common control channels are assigned resources in control regions. This differentiated resource allocation optimizes communication efficiency for each channel type without requiring complex overall system redesign.
2Adaptability or versatility
If spreading is applied to suppress interference signals in one-cell frequency reuse, then frequency use efficiency improves, but device complexity increases
Solution Approach 1:
The patent applies partial action by selectively using spreading only where necessary for interference suppression in one-cell frequency reuse scenarios. The system determines whether spreading is needed based on the specific channel type and interference conditions, applying it to control signaling channels and common control channels while maintaining efficiency in shared channels. This selective approach improves frequency use efficiency without unnecessarily increasing device complexity.
Data Source
AI summary
A transmission apparatus is provided with radio resource assignment means that assigns radio resources to each physical channel according to a type of the physical channel; and transmission means that transmits information to be transmitted by each physical channel using the assigned radio resources.