Transport Block Repetition with Spatial Parameters for Spectral Efficiency
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Solution Overview
Problem
There is a need for further improvements in LTE and NR technologies to enhance mobile broadband access, particularly in managing transport block transmissions using different spatial parameters to improve spectral efficiency and latency in wireless communication systems.
Innovation Solution
A method and apparatus for determining and utilizing different sets of parameters for transport block repetitions, including mini-slot scheduling and spatial parameters, to optimize TB size and transmission patterns in wireless communication devices and base stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If transport block transmissions use different spatial parameters, then spectral efficiency is improved, but transmission complexity increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting spatial parameters (such as beamforming vectors, precoding matrices, or antenna port configurations) for different transport block repetitions. This allows the system to optimize spectral efficiency by adapting transmission characteristics to varying channel conditions while managing complexity through structured parameter selection from predefined codebooks or patterns.
2Loss of time
If transport block transmissions use different spatial parameters, then latency is reduced, but system complexity increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring spatial parameter sets and transmission patterns before actual data transmission. This allows the system to quickly switch between different spatial configurations for transport block repetitions without real-time computation overhead, thereby reducing latency while keeping system complexity manageable through offline optimization.
3Speed
If mini-slot scheduling is used for transport block repetitions, then transmission speed is improved, but scheduling complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the transmission timeline into mini-slots for different transport block repetitions, each with potentially different spatial parameters. This segmentation enables faster transmission by utilizing shorter time intervals and allows independent optimization of each repetition's spatial configuration, balancing transmission speed with scheduling complexity through structured mini-slot patterns.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may determine a first set of parameters associated with a first transport block (TB) repetition of a TB and a second set of parameters associated with a second TB repetition of the TB; and determine a TB size of the TB based at least in part on the first set of parameters, the second set of parameters, or both the first set of parameters and the second set of parameters. Numerous other aspects are provided.