Control Information Segmentation for Flexible Transport Block Scheduling
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Solution Overview
Problem
Current wireless communication systems face challenges in flexibly scheduling transport blocks across different coverage modes, particularly in enhancing the flexibility of transport block scheduling in CE Mode A and CE Mode B, which affects the overall performance and efficiency of user equipment in radio communication networks.
Innovation Solution
A control information indicating method and apparatus that schedules transport blocks by using specific control information, including HARQ process indices and NDI information, to improve the flexibility of transport block scheduling, allowing for various scheduling configurations such as single or multiple transport blocks, and supporting different repetition numbers and modulation schemes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional control information scheduling is used, then the system maintains basic operational stability, but the flexibility of transport block scheduling across different coverage modes is insufficient
Solution Approach 1:
The control information is segmented into distinct fields: a first indication field for the number of transport blocks, a second indication field for HARQ process indices, and a third indication field for NDI information. This segmentation allows each field to independently control specific aspects of scheduling, thereby increasing flexibility without creating an monolithic complex structure.
Solution Approach 2:
The patent implements dynamic scheduling by allowing the number of transport blocks to be indicated flexibly through the first indication field, enabling the system to adaptively adjust the number of TBs based on channel conditions and coverage mode requirements. The HARQ process indices and NDI information further enable dynamic selection and identification of transport blocks across different coverage modes.
2Adaptability or versatility
If the control information includes detailed scheduling parameters for multiple transport blocks, then scheduling flexibility improves, but the complexity of control information processing increases
Solution Approach 1:
The control information structure is designed with universal fields that can accommodate multiple scheduling scenarios. The first indication field universally indicates the number of transport blocks regardless of coverage mode, the second field universally identifies HARQ processes, and the third field universally provides NDI information. This multi-functional design allows a single control information structure to handle various scheduling configurations without requiring mode-specific structures.
Solution Approach 2:
The patent changes key parameters dynamically: the number of transport blocks indicated by the first field can vary based on scheduling needs, the HARQ process indices in the second field can be selectively configured, and the NDI information in the third field can be adjusted. These parameter changes enable flexible scheduling configurations while maintaining a consistent control information framework that simplifies processing.
3Reliability
If separate scheduling mechanisms are used for CE Mode A and CE Mode B, then mode-specific optimization is achieved, but the overall scheduling efficiency and resource allocation adaptability decrease
Solution Approach 1:
The control information structure serves multiple coverage modes through its universal fields. The first indication field can indicate different numbers of transport blocks suitable for either CE Mode A or CE Mode B, the second field can identify HARQ processes relevant to the active coverage mode, and the third field provides NDI information applicable to both modes. This eliminates the need for separate scheduling mechanisms while maintaining mode-specific optimization.
Solution Approach 2:
The scheduling mechanism dynamically adapts to different coverage modes through the flexible indication fields. Based on the current coverage mode and channel conditions, the system can dynamically adjust the number of transport blocks indicated, select appropriate HARQ process indices, and set NDI information accordingly. This dynamic adaptation maintains reliability for each mode while improving overall scheduling efficiency through a unified mechanism.
Data Source
AI summary
Provided are a control information indicating method, a communication node and a computer-readable storage medium. The method includes: sending, by a first communication node, control information to a second communication node, where the control information is used for indicating the scheduling of one or more transport blocks, each transport block corresponds to a respective one of hybrid automatic repeat request (HARQ) processes when being scheduled, and each HARQ process has a corresponding HARQ process index and new data indication (NDI) information.