PxSCH TB Segmentation Across Gaps for Long-SLIV Transmission
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in handling repeated physical uplink/downlink shared channel (PxSCH) transmissions due to limitations in start and length indicator values (SLIV) that do not account for gap boundaries, leading to uncorrelated interference and suboptimal resource utilization.
Innovation Solution
Partitioning PxSCH time resources into segments based on physical or logical gaps and long-SLIV, generating sub-TBs within these segments, and transmitting them across multiple slots to manage interference and improve resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a long-SLIV is used to extend PxSCH coverage across multiple slots, then the coverage and resource utilization are improved, but the complexity of managing gap boundaries and interference correlation increases
Solution Approach 1:
The patent divides the long-SLIV transmission into multiple sub-TBs, where each sub-TB is contained within a single slot and does not cross gap boundaries. This segmentation approach allows the system to extend coverage across multiple slots while maintaining simple boundary management at the sub-TB level, resolving the contradiction between extended coverage and boundary management complexity.
Solution Approach 2:
The patent introduces an intermediary mechanism where the MAC layer generates multiple sub-TBs from a single TB, and the physical layer transmits these sub-TBs across different slots. This intermediary segmentation layer abstracts the complexity of gap boundary management, allowing long-SLIV coverage extension without directly managing complex gap boundaries.
2Reliability
If repeated PxSCH transmissions are performed to improve reliability, then the reliability is enhanced, but the interference becomes uncorrelated and resource utilization decreases
Solution Approach 1:
The patent segments the repeated transmissions into multiple sub-TBs that can be distributed across different time segments and frequency resources. This segmentation enables diversity in transmission paths while maintaining efficient resource utilization, as each sub-TB can be independently scheduled and transmitted without causing uncorrelated interference across the entire TB.
3Object-affected harmful factors
If sub-TBs are generated within time segments separated by gaps, then the interference management is improved, but the processing complexity increases
Solution Approach 1:
The patent segments the TB into sub-TBs that align with time segments separated by gaps. This segmentation naturally isolates interference effects within each time segment, improving interference management. The processing complexity is managed by using regular, predictable segmentation patterns that can be efficiently implemented through standardized algorithms.
Data Source
AI summary
PxSCH TBS and CB for long-SLIV with gaps is described. An apparatus is configured to partition time resources associated with a PxSCH into a set of time segments based on physical gaps or logical gaps and based on a long-SLIV associated with a PxSCH TB for the PxSCH. The set of time segments includes two or more time segments and at least two time segments in the set of time segments are separated by a physical gap or a logical gap. The apparatus is configured to generate a set of sub-TBs, that comprise the PxSCH TB, across the set of time segments. Each sub-TB of the set of sub-TBs is within time segments of the set of time segments. The apparatus is configured to transmit, to a second Rx/Tx device, the PxSCH TB.