DCI Scheduling for Flexible Transport Block Transmissions
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently scheduling high data rate transmissions in unlicensed frequency bands, particularly in determining the appropriate type of transmission, such as multiple physical uplink shared channel (PUSCH) transmissions or transport block repetitions, due to limitations in control information handling.
Innovation Solution
The implementation of advanced downlink control information (DCI) mechanisms that utilize multiple transmission time interval (TTI) fields to schedule multiple transport blocks or their repetitions, allowing for flexible transmission modes based on radio network temporary identifiers (RNTI) and other fields, enabling efficient resource allocation in high data rate environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If control information schedules multiple transmission types in high data rate environments, then transmission flexibility and resource utilization improve, but control information complexity and processing difficulty increase
Solution Approach 1:
The control information is segmented into multiple independent fields, each serving a specific function: TTI field for transmission time interval indication, transport block indicator field for transport block identification, RNTI field for radio network temporary identification, and other fields for additional control parameters. This segmentation allows the system to schedule multiple transmission types (PUSCH transmissions, transport block repetitions, contiguous transmissions) while keeping each field's complexity manageable and independently processable.
Solution Approach 2:
The patent introduces multiple dimensions to the control information structure beyond simple transmission scheduling. By adding TTI (time dimension), transport block indicators (data dimension), and RNTI (identification dimension), the system achieves high transmission flexibility without proportionally increasing overall complexity, as each dimension operates semi-independently with its own encoding and interpretation rules.
2Productivity
If control information indicates multiple transmission types including PUSCH transmissions and transport block repetitions, then resource allocation efficiency improves, but scheduling decision complexity increases
Solution Approach 1:
The control information structure is designed in advance with predetermined field configurations and encoding schemes. The TTI field, transport block indicator field, and other fields are pre-defined with specific bit allocations and interpretation rules, allowing the base station to efficiently make scheduling decisions by simply selecting appropriate field values rather than performing complex real-time optimizations. This preliminary structuring enables high resource allocation efficiency while keeping scheduling decision complexity manageable.
3Measurement precision
If the control information uses multiple fields to determine transmission type, then transmission mode precision improves, but control information processing time increases
Solution Approach 1:
Different fields within the control information are optimized for their specific local functions: the TTI field uses compact encoding for time interval representation, the transport block indicator field uses targeted bit allocations for specific transport block identifications, and the RNTI field uses standardized formatting. This local optimization allows each field to be processed efficiently with minimal computational overhead while maintaining high transmission mode precision through the combined information from all fields.
Data Source
AI summary
Wireless communications may comprise control information for scheduling transmission. Control information may indicate a scheduling mode for transmission based on at least one of a field and/or a radio network temporary identifier (RNTI). The scheduling mode may comprise repetition of a single-transport block or transmission of different transport blocks.