Transport Block Size Calculation Using Actual Resource Blocks
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Solution Overview
Problem
Existing methods for determining transport block size (TBS) result in a calculated TBS that is greater than the TBS actually used in data transmission, leading to excessive bit rates and reduced reliability due to incomplete TB information transfer.
Innovation Solution
Determine TBS based on a target number of resource blocks and overheads, considering the actual number of resource blocks and time-domain units, to align with the TBS used in data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the TBS is determined using the number of resource blocks configured for the data channel, then the calculated TBS is greater than the actual TBS used in data transmission, but the method is simple to implement
Solution Approach 1:
The patent segments the resource block determination into two distinct parts: the number of resource blocks configured for the data channel (first resource blocks) and the number of resource blocks actually used in data transmission (second resource blocks). This segmentation allows the system to separately identify and use the accurate second number for TBS calculation, resolving the contradiction between using a simple configured number versus an accurate actual number.
Solution Approach 2:
The patent performs preliminary determination of the second number of resource blocks before calculating the TBS. By first identifying the actual number of resource blocks used in data transmission, the system prepares the accurate parameter needed for precise TBS calculation, thereby improving measurement precision without adding significant complexity to the overall process.
2Reliability
If the calculated TBS is greater than the actual TBS used in data transmission, then the determination method is simple, but the reliability of data transmission is reduced due to incomplete TB information transfer
Solution Approach 1:
The patent implements a feedback mechanism where the actual number of resource blocks used in data transmission (second number) is identified and fed back into the TBS determination process. This feedback loop ensures that the TBS calculation uses the accurate actual resource block count rather than the configured number, thereby improving data transmission reliability by ensuring complete TB information transfer.
3Loss of information
If the configured bit rate is excessively great compared to the actual bit rate, then the TBS calculation is straightforward, but complete TB information fails to be carried in the actual data transmission
Solution Approach 1:
The patent changes the key parameter used for TBS calculation from the configured number of resource blocks to the actual number of resource blocks used in data transmission. This parameter change ensures that the calculated TBS accurately reflects the actual transmission capacity, preventing information loss by ensuring that the TB size matches the actual bit rate capability of the transmission channel.
Data Source
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AI summary
The present application discloses a transport block size determining method and apparatus, a device, and a storage medium, and relates to the field of communication. The method comprises: determining a transport block size on the basis of a quantity of target resource blocks, wherein the quantity of target resource blocks is determined on the basis of at least one of a first quantity of resource blocks, a second quantity of resource blocks, a first quantity of time-domain units, and a second quantity of time-domain units. Due to the fact that the determined quantity of target resource blocks is closer to a quantity of actually used resource blocks in a data transmission process, the determined transport block size can be closer to a transport block size actually used in the data transmission process, and further, a configured bit rate is closer to an actual bit rate, which is beneficial to data transmission reliability.