Terminal TTI Processing Capability Signaling
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Solution Overview
Problem
Current communication systems face challenges in processing data transmissions of different Transmission Time Intervals (TTI) lengths simultaneously, as terminals lack a clear method to handle both short and traditional TTI transmissions efficiently.
Innovation Solution
A data transmission method where a terminal determines, based on its reported capabilities or predefined rules, whether to process data in different TTI lengths within the same sub-frame, utilizing carrier aggregation, MIMO, transport block limits, or scheduling rules to manage simultaneous transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If a terminal processes both short TTI and traditional TTI data transmissions in the same sub-frame, then the user delay performance is improved and system flexibility is enhanced, but the terminal processing complexity increases and resource scheduling difficulty worsens
Solution Approach 1:
The patent segments the processing of different TTI lengths by introducing a capability indication mechanism. The terminal divides its processing capabilities into distinct categories (short TTI capability, traditional TTI capability, simultaneous processing capability) and reports them separately to the network side. This segmentation allows the network to allocate resources appropriately without overwhelming the terminal, thus reducing processing complexity while maintaining the ability to handle multiple TTI types.
Solution Approach 2:
The patent implements dynamic processing modes where the terminal can switch between different operational states based on capability indications. The terminal dynamically adjusts its processing behavior: when capable of simultaneous processing, it handles both short and traditional TTIs; when not capable, it processes them separately or selects one mode. This dynamic adaptation reduces the burden on the terminal while preserving flexibility for low-latency communications when conditions permit.
2Productivity
If the network schedules both short TTI and traditional TTI transmissions to the same terminal in the same sub-frame, then resource utilization efficiency is improved, but the scheduling complexity and potential for processing conflicts increase
Solution Approach 1:
The patent employs a feedback mechanism where the terminal reports its capability status (whether it can simultaneously process short and traditional TTIs) to the network side. Based on this feedback, the network dynamically adjusts its scheduling decisions. If the terminal indicates capability for simultaneous processing, the network can schedule both types in the same sub-frame; otherwise, it schedules them separately. This feedback-driven approach optimizes resource utilization while avoiding scheduling conflicts that would increase complexity.
Solution Approach 2:
The patent changes the scheduling parameters based on terminal capability states. The network side modifies scheduling parameters (such as whether to allocate resources for both short and traditional TTIs in the same sub-frame) according to the terminal's reported capability. This parameter adjustment allows efficient resource utilization when terminals are capable, while simplifying scheduling when they are not, thus balancing productivity and complexity.
3Adaptability or versatility
If the terminal supports simultaneous processing of short TTI and traditional TTI data, then the system adaptability and throughput are improved, but the terminal capability requirements and processing burden increase
Solution Approach 1:
The patent implements a universal capability indication framework where the terminal reports its multi-functional capabilities in a standardized manner. The capability indication covers multiple scenarios: short TTI processing, traditional TTI processing, and simultaneous processing. This universal reporting mechanism enables the system to adapt to different terminal capabilities without requiring separate mechanisms for each case, thus improving system adaptability while allowing terminals to operate within their actual processing capacity limits.
4Reliability
If clear processing rules for mixed TTI transmissions are established, then the system reliability and processing accuracy are improved, but the protocol complexity and implementation difficulty increase
Solution Approach 1:
The patent applies preliminary action by having the terminal report its capability status before actual data transmission occurs. The capability indication is exchanged in advance, allowing both the terminal and network side to know the processing capabilities beforehand. Based on this prior information, clear processing rules can be established and applied during transmission, ensuring reliable processing without requiring complex real-time decision-making protocols.
Data Source
AI summary
A data transmission method, a terminal and a base station are provided. The data transmission method includes: determining, by a terminal, data transmitted in the first TTI length and/or data transmitted in the second TTI length that are processed in a same sub-frame based on capability reported by the terminal or a predefined rule, the data including a shared channel and/or a control channel; wherein the first TTI length is less than the second TTI length.