Partial Uplink Skipping via Dynamic UCI Indications
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Solution Overview
Problem
In wireless communication systems, particularly in 5G NR networks, there is a need to improve power usage and network capacity by enabling dynamic indications for partial uplink skipping, which allows user equipment (UE) to transmit uplink control information (UCI) indicating the use of only a portion of allocated resources, thereby reducing unnecessary resource usage and enhancing blind decoding efficiency.
Innovation Solution
The solution involves transmitting UCI with an indication for partial uplink skipping on a physical uplink shared channel (PUSCH) based on a transmission offset, allowing the UE to rate match or puncture UCI across defined resource blocks (RBs), and providing a configured or dynamic grant to the UE for efficient resource allocation, enabling the network to decode UCI more efficiently and reuse resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the UE transmits UCI indicating partial uplink skipping on the PUSCH, then the network can efficiently reuse resources and improve power usage efficiency, but the network must implement complex blind decoding mechanisms to handle the partial skipping
Solution Approach 1:
The patent segments the uplink resources into different resource blocks (RBs) and enables partial skipping at the RB level. The UCI indicates which specific RBs will be skipped, allowing the network to decode only the non-skipped portions. This segmentation enables flexible resource utilization while managing decoding complexity through targeted processing rather than full-blind decoding of entire allocations.
Solution Approach 2:
Instead of requiring full UCI transmission for the entire PUSCH allocation, the patent applies partial action by transmitting UCI only for the skipped portions. The network performs partial blind decoding focused on the indicated skipped RBs rather than processing the entire allocation, reducing computational complexity while maintaining the benefit of efficient resource reuse.
2Use of energy by moving object
If the UE uses only a portion of allocated resources for uplink transmission, then power usage efficiency improves and network capacity increases, but the network requires more complex mechanisms to decode and manage the partial transmissions
Solution Approach 1:
The UE performs preliminary action by transmitting UCI information before the actual data transmission on the PUSCH. This UCI indicates which resource blocks will be skipped, allowing the network to prepare appropriate decoding parameters and resource allocation decisions in advance. This preliminary signaling enables efficient partial transmission while managing network complexity through advance information provision.
Solution Approach 2:
The patent changes the parameter of resource utilization from fixed full-allocation to variable partial-allocation. By introducing UCI indicators that specify which RBs are skipped, the system dynamically adjusts the effective resource usage parameters. This allows power-efficient partial transmissions while the network manages complexity through standardized parameter changes rather than fundamentally new management mechanisms.
3Productivity
If the network implements blind decoding for partial uplink skipping, then resource allocation efficiency improves, but the processing time and latency increase
Solution Approach 1:
The patent extracts the skipping indication information from the full UCI transmission and separates it as a distinct indicator. By taking out the partial skipping indication as a separate UCI element, the network can process this information independently and use it to optimize decoding only for the affected portions. This extraction reduces the overall decoding time compared to processing entire allocations while maintaining resource allocation efficiency.
Data Source
AI summary
Apparatuses and methods for dynamic indications for partial uplink skipping are described. An apparatus is configured to transmit UCI including an indication for partial uplink skipping on a PUSCH at a time based on a transmission offset from the PUSCH, and transmit the partial uplink skipping on the PUSCH. An apparatus is configured to receive a CG for a PUSCH, rate match or puncture UCI that includes an indication for a partial uplink skipping of the CG, where the UCI is rate-matched across or punctured based on a configured or defined level of RBs, and transmit the UCI. An apparatus is configured to receive UCI including an indication for partial uplink skipping on a PUSCH at a time based on a transmission offset from the PUSCH, and receive the partial uplink skipping on the PUSCH.