Joint Transport Block Transmission Alignment
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Solution Overview
Problem
Current wireless communication systems face challenges in achieving reliable and efficient joint transport block transmission across multiple transmission points, particularly in ensuring aligned transport block sizes for combining signals from different transmission points, which affects transmission diversity and reliability.
Innovation Solution
A scheme where user equipment (UE) receives a configuration message to align transport block sizes across multiple transmission points, allowing for joint transport block transmission, and combines log likelihood ratios to improve signal-to-interference-plus-noise ratio and transmission diversity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If joint transport block transmission is implemented across multiple transmission points, then transmission diversity and reliability are improved, but transport block size alignment becomes complex and difficult to manage
Solution Approach 1:
The patent changes the parameter of transport block size to be identical across all transmission points for joint transmission. By enforcing TBS alignment as a strict parameter constraint, the system achieves reliable signal combining while managing complexity through standardized parameter configuration across multiple TRPs.
Solution Approach 2:
The patent applies universal transport block size configuration across multiple transmission points, allowing the same TBS parameter to be used universally for joint transmission. This multi-point universality enables the system to achieve transmission diversity while maintaining consistent block sizes for reliable combining at the receiver.
2Reliability
If transport block sizes are aligned across multiple transmission points, then signal combining effectiveness is improved, but transmission flexibility is reduced
Solution Approach 1:
The patent changes the TBS parameter to identical values across transmission points to enable effective signal combining. This parameter standardization improves combining effectiveness while the system maintains flexibility through other configurable parameters such as resource allocation and modulation schemes.
3Productivity
If multiple transmission points transmit simultaneously, then data rate is increased, but interference management becomes more difficult
Solution Approach 1:
The patent merges the transmissions from multiple transmission points by combining signals for the same transport block at the receiver. This merging approach increases the effective data rate through transmission diversity while the identical TBS configuration enables constructive combining rather than interference.
Solution Approach 2:
The patent converts the potential harmful effect of simultaneous transmissions into a beneficial signal combining opportunity. By using identical transport block sizes and coordinating the transmissions, the system transforms what could be interference into constructive signal addition, improving both reliability and data rate.
Data Source
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AI summary
Aspects of the disclosure relate to a method and apparatus for receiving a joint transport block transmission. A user equipment (UE) receives a configuration message configuring the UE to receive a joint transport block (TB) transmission of data from a plurality of transmission points (TRPs). The UE determines a transport block size (TBS) for receiving the joint TB transmission, receives transport blocks corresponding to the joint TB transmission, each transport block from a respective one of the plurality of TRPs, combines the transport blocks when a size of each of the transport blocks is the determined TBS, and recovers the data based on the combined transport blocks. Other aspects, embodiments, and features are also claimed and described.