Channel Allocation Notification Using Virtual Channel Groups
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Solution Overview
Problem
In wireless communication systems, the conventional method of notifying channel allocation using bitmaps becomes inefficient with a large number of communication channels, leading to increased information volume in control channels, which can overwhelm limited communication resources.
Innovation Solution
A method that calculates the necessary number of communication channels based on data type and quality, and allocates them using virtual channels formed by combining consecutive channels, reducing the volume of channel allocation information transmitted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If bitmap method is used for channel allocation notification, then channel allocation can be achieved, but information volume in control channels increases when number of communication channels is large
Solution Approach 1:
The patent segments the channel allocation notification by dividing communication channels into multiple groups and using group-based indication instead of individual bit representation for each channel. This segmentation reduces the total number of bits required in control information while maintaining complete channel allocation notification capability.
Solution Approach 2:
The patent merges multiple consecutive communication channels into channel groups, where a single indicator can represent allocation status for multiple channels. This merging approach consolidates what would otherwise require multiple separate bits into fewer composite indicators, directly reducing information volume.
2Quantity of substance
If number of communication channels increases, then communication capacity improves, but control information volume increases
Solution Approach 1:
By segmenting channels into groups and using group-level indicators, the patent prevents control information overhead from increasing linearly with the number of channels. The segmentation creates a scalable structure where additional channels add minimal control overhead.
Solution Approach 2:
The patent changes the parameter representation from individual channel bits to group-based indicators, fundamentally altering how channel allocation information is encoded. This parameter change enables the system to handle larger numbers of channels without proportional increases in control information volume.
3Ease of operation
If conventional bitmap allocation is used, then simple channel assignment is achieved, but resource efficiency decreases with large channel numbers
Solution Approach 1:
The patent merges adjacent channels into groups that can be allocated together, maintaining operational simplicity while improving resource efficiency. The merging allows the system to manage large numbers of channels without the linear overhead penalty of conventional bitmap approaches.
Data Source
AI summary
The number of communication channels necessary for communication with a terminal is calculated by using type and volume of data to be transmitted. When calculated number of communication channels is one, a single communication channel is allocated based on quality information of a communication line to the terminal and, when calculated number of communication channels is more than one, then more than one communication channels are allocated based on the quality information. Allocation information used for notifying of allocated communication channels is generated based on virtual channels, which are defined in advance as channel units having a combination of a plurality of consecutive communication channels, and the allocation information is transmitted to the terminal.