Transport Block Transmission Using Time-Domain Padding Suppression
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Solution Overview
Problem
In communication systems, terminal devices often send transport blocks (TBs) that include both valid and invalid data, leading to unnecessary power consumption due to padding, which is not efficiently managed by existing technologies.
Innovation Solution
The terminal device maps valid data to a first time domain resource and invalid data to a second time domain resource, disabling transmission of the second resource to avoid sending invalid data, thereby reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the terminal device sends a transport block (TB) including both valid and invalid data to meet the scheduled data volume, then the network device can receive the scheduled amount of data, but the terminal device consumes unnecessary power due to transmitting padding (invalid data)
Solution Approach 1:
The patent segments the transport block into two distinct parts: valid data and invalid data (padding). By separating these components, the terminal device can selectively transmit only the valid data portion, eliminating the waste of power on transmitting invalid padding data while still meeting the scheduled data volume requirements.
Solution Approach 2:
The patent extracts and removes the invalid data (padding) from the transport block before transmission. The terminal device identifies and separates the padding portion from the valid data, then transmits only the necessary valid data to the network device, thereby reducing power consumption without compromising the scheduled data volume.
2Device complexity
If the network device schedules a fixed transport block size without knowing the actual valid data volume, then resource allocation is simplified, but the terminal device must pad with invalid data leading to power waste
Solution Approach 1:
The patent introduces a feedback mechanism where the terminal device reports the actual valid data volume to the network device before transmission. This feedback enables the network device to adjust the scheduled transport block size to match the actual data volume, eliminating the need for padding and reducing power consumption while maintaining scheduling manageability.
Solution Approach 2:
The patent performs preliminary action by having the terminal device report the valid data volume before the network device schedules the transport block. This advance information allows the network device to configure the appropriate TB size in advance, avoiding the need for padding and subsequent power waste.
Data Source
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Figure 3~4(b)
AI summary
This application provides a communication method and apparatus, applicable to a communication system including a network device and a terminal device. The method includes: The terminal device determines a TB, sends a first CBG to the network device on a first time domain resource, and disables a transmission function of the terminal device on a second time domain resource. The TB includes the first CBG and a second CBG. If the network device successfully receives the first CBG on the first time domain resource, and determines, on the second time domain resource, that the terminal device does not enable the transmission function, the network device determines that the TB is successfully received. This helps avoid unnecessary power consumption caused when the terminal device sends the TB to the network device.