MAC Entity Segmentation for F-OFDM Subband Scheduling
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Solution Overview
Problem
Conventional communication solutions fail to leverage the characteristics of Filter Orthogonal Frequency Division Multiplexing (F-OFDM) during data scheduling, as they require a single Media Access Control (MAC) entity to manage multiple subbands, leading to inconsistent scheduling periods and increased implementation complexity.
Innovation Solution
Creating a MAC entity with a scheduling period consistent with the Transmission Time Interval (TTI) of each subband, allowing for consistent data scheduling and transmission across multiple subbands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If one MAC entity is used for scheduling multiple subbands, then device complexity is reduced, but scheduling precision deteriorates due to inconsistent scheduling periods across different subbands
Solution Approach 1:
The patent segments the single MAC entity into multiple MAC entities, with each MAC entity dedicated to a specific subband. This segmentation allows each MAC entity to have a scheduling period that precisely matches its corresponding subband's TTI, thereby resolving the scheduling precision issue while maintaining manageable system complexity through functional specialization.
Solution Approach 2:
The patent applies local quality by configuring different scheduling periods for different MAC entities based on their respective subband characteristics. Each MAC entity is locally optimized to match its subband's TTI requirements, allowing heterogeneous scheduling parameters across different subbands while maintaining overall system coherence.
2Productivity
If one MAC entity schedules multiple subbands with different TTIs, then resource utilization improves, but implementation complexity increases exponentially
Solution Approach 1:
By segmenting the MAC entity functionality across multiple independent MAC entities, the patent eliminates the exponential complexity growth that would result from trying to handle multiple TTIs within a single MAC entity. Each MAC entity handles only its designated subband with a single TTI, making implementation straightforward and scalable.
Solution Approach 2:
The patent achieves multi-functionality by having multiple MAC entities work in parallel, where each MAC entity is simple but the collective system handles multiple subbands with different TTIs. This distributed approach maintains resource utilization while avoiding the complexity of a single complex MAC entity.
3Ease of operation
If a single MAC entity manages multiple subbands, then ease of operation improves, but scheduling accuracy deteriorates due to inability to align scheduling periods with each subband's TTI
Solution Approach 1:
The patent segments scheduling management into multiple independent MAC entities, each responsible for a specific subband. This segmentation enables precise alignment of each MAC entity's scheduling period with its subband's TTI, achieving high scheduling accuracy while maintaining ease of operation through modular, independent management of each subband.
Data Source
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AI summary
The present invention discloses a method for creating a Media Access Control MAC entity, including: obtaining, by a wireless communications device, an identity of a subband used to transmit to-be-transmitted data and an identity of a to-be-created MAC entity, where the wireless communications device is a network device or user equipment; creating the MAC entity according to the identity of the to-be-created MAC entity, where the MAC entity is used to schedule the to-be-transmitted data onto the subband indicated by the identity of the subband; and setting a scheduling period of the to-be-created MAC entity to be consistent with a transmission time interval TTI of the subband. In the method for creating a MAC entity provided in embodiments of the present invention, a MAC entity whose scheduling period is consistent with a TTI of each subband can be created for the subband, so that consistency between data scheduling and transmission is ensured.