Multi-TB Narrowband Scheduling for Higher Frequency Hopping Gain
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Solution Overview
Problem
The existing frequency hopping technology limits the frequency hopping gain due to the inability of one transport block (TB) to span all narrowbands or occupy only one narrowband.
Innovation Solution
A scheduling method and apparatus that determines the order of TBs and their narrowband positions using predefined frequency hopping or interleaving rules to ensure all TBs occupy multiple narrowbands, thereby improving frequency hopping gain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If one TB occupies only one narrowband, then the scheduling complexity is reduced, but the frequency hopping gain is limited
Solution Approach 1:
The patent segments the frequency hopping process by introducing multiple TBs, where each TB occupies a specific narrowband. This segmentation allows the system to achieve frequency diversity across multiple narrowbands while maintaining simple per-TB scheduling, as each TB's narrowband assignment follows predefined rules rather than complex dynamic allocation.
Solution Approach 2:
The patent extends the frequency hopping mechanism from a single-TB multi-narrowband approach to a multi-TB single-narrowband approach. By adding the dimension of multiple TBs, the system achieves the same frequency diversity gain while simplifying the scheduling of individual TBs, effectively trading spatial distribution for temporal distribution in the frequency domain.
2Reliability
If one TB spans all narrowbands, then the frequency hopping gain is improved, but the scheduling complexity increases
Solution Approach 1:
Instead of one TB spanning all narrowbands, the patent segments the transmission into multiple TBs, each occupying a subset of narrowbands. This segmentation reduces the scheduling complexity for each individual TB while collectively achieving frequency hopping gain across all narrowbands through the predefined ordering and positioning rules.
Solution Approach 2:
The patent transitions from a single-TB multi-narrowband spanning approach to a multi-TB approach where frequency diversity is achieved through the combination of multiple TBs across different narrowbands. This dimensional change in the scheduling structure reduces per-TB complexity while maintaining overall frequency hopping benefits.
3Reliability
If multiple TBs are scheduled in one PDCCH with predefined rules, then the frequency hopping gain is improved, but the interleaving complexity increases
Solution Approach 1:
The patent applies preliminary action by establishing predefined frequency hopping rules and interleaving rules before transmission. These rules determine the order of TBs and their narrowband positions in advance, eliminating the need for complex real-time scheduling decisions and reducing interleaving complexity during actual transmission while maintaining frequency hopping gain.
Solution Approach 2:
The patent changes the scheduling parameters from dynamic allocation to predefined rules-based allocation. By fixing the TB order and narrowband positioning according to predetermined rules, the system achieves frequency hopping gain while significantly reducing the computational complexity of interleaving operations during transmission.
Data Source
AI summary
Provided are a scheduling method and apparatus, a device and a storage medium. The scheduling method includes, in the case where multiple transport blocks (TBs) are scheduled in one PDCCH, determining the order of multiple TBs and the narrowband position of each TB according to a predefined rule. The predefined rule includes at least a predefined frequency hopping rule or a predefined interleaving rule.