Adaptive Transport Block Size Selection for Wireless Terminal Devices
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Solution Overview
Problem
In wireless communications, particularly in LTE technology, terminal devices are required to use the largest transport block size (TBS) for uplink user data transmission, leading to unnecessary padding and waste of transmission resources when the data size is less than the configured TBS, without considering the network's load or resource availability.
Innovation Solution
A method where terminal devices determine the appropriate transport block size (TBS) based on indication information received from the network, allowing selection from a set of TBSs, including the first, second, or third TBS, to optimize data transmission according to the network's coverage enhancement level or mode, thereby reducing resource wastage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal device uses the largest TBS for uplink user data transmission, then the transmission reliability is improved, but the transmission resource waste increases due to unnecessary padding
Solution Approach 1:
The patent applies dynamics by making the TBS selection adaptive rather than fixed. The terminal device dynamically selects from multiple TBS options (first TBS, second TBS, or third TBS from a TBS set) based on real-time network conditions and data size, allowing the system to optimize between reliability and resource efficiency for each transmission
Solution Approach 2:
The patent changes the TBS parameter from a single fixed value to a selectable set of values. The network configures multiple TBS options and the terminal device selects the appropriate TBS based on data size and network conditions, enabling parameter optimization without compromising transmission reliability
2Quantity of substance
If the terminal device uses the largest TBS configured by the network, then the transmission capacity is improved, but the adaptability to network conditions deteriorates
Solution Approach 1:
The system transitions from a static TBS configuration to a dynamic selection mechanism. The terminal device adapts its TBS choice based on real-time network conditions, data size, and coverage enhancement levels, maintaining high transmission capacity while improving adaptability
Solution Approach 2:
The patent segments the TBS configuration into multiple options (first TBS, second TBS, and third TBS from a TBS set). This segmentation allows the terminal device to select the most appropriate TBS for current network conditions while maintaining the capability for high-capacity transmission when needed
3Stability of the object's composition
If the terminal device adds padding bits to expand data size to the largest TBS, then the transmission format compatibility is improved, but the transmission efficiency deteriorates
Solution Approach 1:
The patent changes the TBS parameter selection from a fixed largest value to a configurable set of values. By selecting an appropriate TBS from the set based on actual data size, the system maintains format compatibility through standardized TBS options while eliminating unnecessary padding and improving transmission efficiency
Data Source
AI summary
Methods, apparatus, and systems for data or information transmission are provided. In one aspect, a data sending method by a terminal device includes: determining indication information, determining, based on the indication information, a transport block size (TBS) used to send data, and sending the data based on the determined TBS. The terminal device can determine at least two of first information indicating that the TBS is a first TBS, second information indicating that the TBS is a second TBS, or third information indicating the terminal device to select a TBS from a TBS set as a third TBS used by the terminal device to send data. The TBS set is determined based on the first TBS, and can include at least one of the second TBS or the third TBS. The indication information includes one of the at least two of the first, second, or third information.