Terminal Transmission Mode Identification via Configuration Indication
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Solution Overview
Problem
In the context of 5G communications, particularly in the uRLLC scenario, there is a challenge in identifying the transmission mode used by a network side, which is crucial for terminals to perform appropriate receiving and processing.
Innovation Solution
A method is provided that involves obtaining configuration indication information, such as DMRS indication information, repeated-transmission indication information, or transmission configuration indication (TCI) information, to determine the transmission mode. This information helps the terminal identify whether the transmission mode is SDM, FDM, TDM, or their sub-modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If repeated transmission is used to improve transmission robustness in uRLLC scenario, then transmission reliability is improved, but the complexity of identifying transmission mode increases
Solution Approach 1:
The patent introduces configuration indication information as an intermediary element that carries transmission mode identification data. This intermediary resolves the contradiction by providing a dedicated signaling mechanism that simplifies the identification process for the terminal while maintaining the repeated transmission structure for reliability.
Solution Approach 2:
The patent changes the parameter representation by using specific configuration indication information fields to encode transmission mode identifiers. Instead of complex analysis of transmission characteristics, the terminal simply decodes the indicated parameter values to determine the transmission mode, reducing identification complexity while preserving reliability through maintained repeated transmission.
2Adaptability or versatility
If multiple transmission modes (SDM, FDM, TDM) are supported in 5G system, then system adaptability is improved, but the difficulty of detecting and measuring transmission mode increases
Solution Approach 1:
The patent segments the transmission mode identification into distinct configuration indication information fields. Each field corresponds to specific transmission mode parameters, allowing the terminal to detect and measure each mode independently through dedicated indication data rather than analyzing the entire transmission signal complexly.
Solution Approach 2:
The configuration indication information acts as an intermediary that provides explicit transmission mode identification. This mediator translates the complex multi-mode transmission characteristics into simple, detectable indication fields that the terminal can easily measure and interpret, maintaining versatility while reducing detection difficulty.
3Measurement precision
If configuration indication information is used to indicate transmission mode, then transmission mode identification accuracy is improved, but the loss of information increases due to additional signaling
Solution Approach 1:
The patent applies partial action by using only the necessary configuration indication information fields required for transmission mode identification. Instead of transmitting complete transmission parameter sets, only the essential indication data is sent, achieving sufficient identification accuracy while minimizing information loss through selective signaling.
Solution Approach 2:
The patent changes the information representation by encoding transmission mode identification into compact parameter fields within the configuration indication information. This parameter transformation achieves precise mode identification through concise signaling, reducing the information overhead compared to transmitting full transmission parameter descriptions.
Data Source
AI summary
A method and apparatus are provided for determining a transmission mode. A method embodiment includes obtaining, by a terminal device, configuration indication information, the configuration indication information comprising one or more of: DMRS indication information, repeated-transmission indication information, or transmission configuration indication information; and determining a transmission mode based on the configuration indication information, the transmission mode is one or more of: a space division multiplexing mode, a frequency division multiplexing mode, or a time division multiplexing mode.