MAC Frame Schedule Element Generation for Multi-Channel Allocation
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Solution Overview
Problem
Efficient scheduling in environments where multiple wireless communication standards coexist is insufficient, leading to reduced channel utilization efficiency due to misinterpretation of allocation information across different channels.
Innovation Solution
A transmitting apparatus and receiving apparatus that generate and transmit MAC frames with specific schedule elements, including both complete and incremental scheduling information, to accurately convey allocation details across channels, ensuring efficient scheduling without misinterpretation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single type of schedule element is used for all channel allocations, then the device complexity is reduced, but the loss of information increases due to misinterpretation of allocation details across different channels
Solution Approach 1:
The patent segments scheduling information into two distinct types of schedule elements: first-type schedule elements for single-channel allocations and second-type schedule elements for multi-channel allocations. Each type contains channel-specific fields tailored to its purpose, preventing misinterpretation while maintaining structured organization. This segmentation resolves the contradiction by allowing specialized information structures for different allocation scenarios.
Solution Approach 2:
The patent applies local quality by making the schedule element structure adaptive to the specific allocation context. First-type schedule elements include single-channel specific fields, while second-type schedule elements include multi-channel specific fields. This localized optimization ensures that each schedule element contains precisely the information needed for its channel allocation type, improving accuracy without unnecessary complexity.
2Loss of information
If different schedule elements are generated for each channel in multi-channel allocations, then the scheduling information accuracy is improved, but the device complexity increases due to multiple frame generation processes
Solution Approach 1:
The patent creates a universal schedule element generation mechanism that handles both single-channel and multi-channel allocations through a unified process. The transmission signal generation circuit determines the allocation type and selects the appropriate schedule element type, allowing a single generation process to serve multiple functions. This resolves the contradiction by eliminating the need for separate frame generation processes while maintaining information accuracy.
Solution Approach 2:
The patent changes the parameters of the schedule element based on the allocation type. The transmission signal generation circuit modifies the schedule element structure (first-type or second-type) according to whether the allocation involves one or multiple channels. This parameter-based adaptation allows flexible information conveyance without requiring fundamentally different generation processes, reducing complexity while preserving accuracy.
3Loss of information
If complete scheduling information is transmitted for all channels, then the scheduling information accuracy is improved, but the loss of time increases due to larger frame sizes and longer transmission durations
Solution Approach 1:
The patent extracts only the necessary scheduling information for each specific channel allocation type. First-type schedule elements extract single-channel allocation details, while second-type schedule elements extract multi-channel allocation details. This extraction principle ensures that complete relevant information is transmitted without including unnecessary data for other allocation types, reducing frame size and transmission time while maintaining information completeness for the specific context.
4Loss of time
If incremental scheduling information is used instead of complete information, then the transmission time is reduced, but the loss of information increases due to potential misinterpretation of allocation details
Solution Approach 1:
The patent makes the schedule element structure dynamic by adapting it to the specific allocation scenario. The transmission signal generation circuit determines whether to use first-type or second-type schedule elements based on the channel allocation type, creating a dynamic information structure that conveys complete relevant information without unnecessary overhead. This dynamic adaptation resolves the contradiction by ensuring information completeness is maintained while transmission time is optimized for the specific context.
Data Source
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AI summary
A transmitting apparatus generates at least one of a first type of schedule element corresponding to an allocation involving a single channel and a second type of schedule element corresponding to an allocation involving a plurality of channels and that transmits MAC frames including the schedule element over first to Nth channels. When the allocation involving the plurality of channels includes an nth channel, the transmitting apparatus generates a schedule element of the first type, the schedule element including all information of scheduling information for the allocation involving the plurality of channels, and generates a schedule element of the second type, the schedule element including difference information, and when the allocation involving the plurality of channels does not include the nth channel, the transmission-signal generating circuit omits the generation of the first type of schedule element and generates the second type of schedule element including all information for the allocation involving the plurality of channels.