Unified Bitmap Time Domain Resource Indication for Signaling Complexity
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Solution Overview
Problem
Existing communications systems face complexity in signaling design due to varying time domain resource indications across different scenarios, requiring a unified method to efficiently indicate time units for data transmission.
Innovation Solution
A data transmission method using a bitmap manner where N bits are sent by a network device to indicate whether corresponding time units are used for data transmission, allowing for a unified time domain resource indication across scenarios with different time lengths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different time domain resource indication manners are used for different scenarios, then each scenario can be accurately indicated, but signaling design complexity increases
Solution Approach 1:
The patent applies a unified time domain resource indication method that can be used across multiple different scenarios (slot-based scheduling, URLLC, high frequency, LTE/5G coexistence, unlicensed band). The same indication mechanism handles diverse time unit configurations without requiring scenario-specific designs, thereby reducing signaling complexity while maintaining adaptability.
Solution Approach 2:
The patent changes the parameter representation by using a unified bitmap structure where each bit corresponds to a time unit. The time units can represent different time lengths (slots, mini-slots, symbols) depending on the scenario, but the indication mechanism remains consistent. This parameter-based approach allows flexible adaptation to different scenarios without increasing signaling complexity.
2Adaptability or versatility
If multiple time unit configurations are supported, then system flexibility improves, but indication complexity increases
Solution Approach 1:
The patent segments the time domain into discrete time units (slots, mini-slots, symbols) and uses a bitmap where each bit independently indicates whether the corresponding time unit is used for data transmission. This segmentation allows flexible configuration of different time unit types while maintaining a simple and unified indication mechanism.
Solution Approach 2:
The patent uses a bitmap representation that copies the structure across different scenarios. The same bitmap mechanism is replicated and applied to various time unit configurations (different time lengths, consecutive or inconsecutive symbols), providing a consistent and simple indication approach that scales to support multiple configurations without increasing complexity.
Data Source
AI summary
Embodiments of the present disclosure provide a data transmission method. The method includes: sending, by a network device, first indication information, where the first indication information includes N bits, the N bits are corresponding to M time units, the M time units are corresponding to at least one time length, a value of each bit is used to indicate whether a corresponding time unit is used to transmit data of a terminal device, M is an integer greater than or equal to 1, and N is an integer greater than or equal to 1; and sending, by the network device, downlink data in a time unit that is used to transmit the data of the terminal device, where the time unit is indicated by the N bits. Therefore, a unified time domain resource indication manner can be used in different scenarios to reduce complexity of a signaling design.