Transmission Priority Determination for DCI and Higher-Layer Signaling Conflicts
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Solution Overview
Problem
The existing communication systems face a time domain conflict due to overlapping time domain resources for transmissions scheduled by the Physical Downlink Control Channel (PDCCH) Downlink Control Information (DCI) and those configured by higher-layer signaling, leading to uncertainty about which transmission to prioritize.
Innovation Solution
A method and apparatus are provided to determine whether to receive or send transmissions based on specific information, including overlap, sequence relationship, and size of time domain resources, ensuring that only one transmission occurs at a time moment, thereby avoiding conflicts by prioritizing transmissions scheduled by DCI over those configured by higher-layer signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If time domain resources for DCI-scheduled transmission and higher-layer signaling transmission overlap, then both transmissions are configured, but time domain conflict occurs leading to uncertainty about which transmission to prioritize
Solution Approach 1:
The patent changes the parameter of transmission priority by introducing a priority indicator field in DCI format. This field explicitly indicates whether the DCI-scheduled transmission has higher priority than the higher-layer signaling transmission, allowing the system to dynamically adjust priority based on traffic requirements while resolving the ambiguity in resource conflicts
Solution Approach 2:
The patent segments the transmission scheduling into two distinct priority levels: DCI-scheduled transmissions and higher-layer signaling transmissions. By introducing the priority indicator field, it further segments the DCI transmissions into high-priority and normal-priority categories, enabling fine-grained control over which transmission proceeds when resource conflicts occur
2Productivity
If the terminal sends both uplink channel and uplink signal at the same time, then transmission efficiency is improved, but device complexity increases due to simultaneous transmission coordination
Solution Approach 1:
The patent applies preliminary action by having the terminal determine the priority relationship between DCI-scheduled transmission and higher-layer signaling transmission before the actual transmission occurs. The priority indicator in the DCI allows the terminal to pre-plan which transmission to execute, avoiding the need for complex real-time coordination during simultaneous transmission scenarios
Data Source
AI summary
Provided are a transmission determination method, a transmission determination apparatus, a base station, a terminal, and a computer-readable storage medium. Whether to receive a first transmission is determined according to first information, and/or whether to send a second transmission is determined according to first information, so that the first transmission is received or the second transmission is sent at one time moment. It is ensured that a terminal and/or a base station transmit at most one transmission at one time moment, thus avoiding a time domain conflict caused by overlapping of time domain resources for a transmission scheduled by downlink control information (DCI) and a transmission configured by higher-layer signaling.