Wireless Terminal TBS Determination via Mode Information
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Solution Overview
Problem
In wireless communication systems, determining the transport block size (TBS) for data transmission between a base station and a terminal can be ambiguous, leading to reliability issues due to contradictory methods for data transmission and reception.
Innovation Solution
A method is provided where a terminal receives sync signals, performs random access, and acquires mode information from a base station to determine a consistent transport block size (TBS) for data transmission and reception from multiple transmission reception points (TRPs), based on downlink control information (DCI) and mode information, allowing for reliable data exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal determines TBS based on information related to one TB between two TBs in DCI, then the TBS determination becomes unambiguous and reliable, but the complexity of the determination procedure increases
Solution Approach 1:
The patent introduces mode information as an intermediary element that mediates between the DCI and the TBS determination process. This mode information, which indicates whether single-TB or dual-TB mode is used, serves as a mediator that resolves the ambiguity in TBS determination by providing additional context about which TB information should be used, thus improving reliability without significantly increasing complexity
Solution Approach 2:
The patent changes the parameter used for TBS determination from directly using TB information to using mode information combined with TB information. By introducing this new parameter (mode information), the system can unambiguously determine which TB's information to use, thereby improving reliability while the parameter itself guides the simplified determination process
2Reliability
If the base station transmits data from multiple TRPs based on the same information, then communication reliability is improved, but the ambiguity in TBS determination increases
Solution Approach 1:
Mode information acts as an intermediary that clarifies the relationship between multiple TRPs and the TB information. It serves as a mediator that tells the terminal which TB's information corresponds to the multi-TRP transmission, thereby eliminating information loss and ambiguity while maintaining the reliability benefits of multi-TRP transmission
Solution Approach 2:
The base station performs preliminary action by including mode information in the DCI before the actual data transmission. This preliminary inclusion of mode information prepares the terminal with the necessary context to correctly interpret the TB information, preventing ambiguity before it arises and ensuring accurate TBS determination in multi-TRP scenarios
3Productivity
If the terminal assumes data reception is scheduled from multiple TRPs, then communication efficiency is improved, but the complexity of TBS determination increases
Solution Approach 1:
The patent changes the approach by introducing mode information as a new parameter that simplifies the TBS determination process. Instead of increasing complexity to handle multiple TRPs, the system uses this new parameter to guide the terminal through a more straightforward determination process, thereby maintaining high productivity while reducing complexity
Data Source
AI summary
The present disclosure discloses operating methods of a user equipment and a base station in a wireless communication system, and a device supporting same. According to an embodiment applicable to the present disclosure, the user equipment may establish connection with the base station, on the basis of a synchronization signal/physical broadcast channel (SS/PBCH) block received from the base station. Subsequently, the user equipment may be configured, by the base station, with a transmission mode in which data generated from the same information is transmitted from a plurality of transmission reception points (TRPs), and may determine a size of a transmission block related to data provided from the plurality of TRPs on the basis of the transmission mode to obtain related data information. Accordingly, the base station and the user equipment can configure/determine the size of the transmission block related to the data without ambiguity therebetween.