Repeated PUSCH UCI Multiplexing by PUCCH Beam Alignment
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Solution Overview
Problem
Existing 5G NR technologies face challenges in managing collisions between uplink control information (UCI) and physical uplink shared channel (PUSCH) transmissions due to beam diversity and redundancy, which can lead to inefficiencies and potential data loss.
Innovation Solution
The proposed solution involves multiplexing UCI onto PUSCH transmissions based on beam-dependent rules, allowing for UCI to be transmitted on specific instances of repeated PUSCH transmissions that share a common beam with PUCCH, and prioritizing or aligning transmissions based on content and group identifiers to optimize data delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UCI and PUSCH transmissions are performed simultaneously on different beams, then beam diversity and transmission reliability are improved, but collision between uplink channels occurs leading to resource conflict and potential data loss
Solution Approach 1:
The patent segments the uplink transmission resources by separating PUCCH and PUSCH transmissions into different time slots or frequency resources when beam collision is detected. This segmentation prevents resource conflict while maintaining beam diversity, as each beam can transmit its assigned channel without interference from the other.
Solution Approach 2:
The patent implements dynamic resource allocation where the system adaptively adjusts transmission parameters based on real-time beam collision detection. When collision is detected between PUCCH and PUSCH on different beams, the system dynamically modifies transmission timing, frequency resources, or power allocation to resolve the conflict while preserving transmission reliability.
2Productivity
If beam-dependent rules are implemented for UCI multiplexing, then resource utilization and transmission efficiency are improved, but system complexity and processing overhead increase
Solution Approach 1:
The patent applies beam-dependent rules locally to specific beam pairs rather than implementing a global complex scheduling system. Each beam pair has its own multiplexing rules based on local channel conditions and collision patterns, which simplifies the overall system complexity while maintaining high transmission efficiency through localized optimization.
Solution Approach 2:
The system implements self-service mechanisms where the UE autonomously applies beam-dependent multiplexing rules based on pre-configured parameters and real-time beam status. This reduces the need for complex centralized scheduling and control signaling, thereby lowering system complexity while maintaining efficient resource utilization through distributed decision-making.
Data Source
AI summary
Determining, by a user equipment (UE) of a wireless communication system, that a physical uplink control channel (PUCCH) transmission of the UE carrying uplink control information (UCI) will collide upon transmission with another physical uplink shared channel (PUSCH) transmission of the UE. The UE then multiplexes, in response to the determining, the UCI on the PUSCH transmission based on one or more of the beam of the PUCCH transmission and the beam of the particular PUSCH transmission.