UE SPS Acknowledgement Transmission via Fallback Opportunity
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Solution Overview
Problem
In 5G NR systems, existing technologies face challenges in efficiently transmitting Uplink Control Information (UCI) due to collisions and unavailability of transmission opportunities, leading to potential delays and reduced communication reliability.
Innovation Solution
The proposed solution involves a user equipment (UE) that determines an initial and repetitive transmission opportunity for acknowledgement information based on Semi-Persistent Scheduling (SPS) configuration, and if the UCI transmission opportunity is not available, it identifies a target transmission opportunity, allowing efficient transmission of UCI using a transceiver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the UE uses initial transmission opportunities for UCI based on SPS configuration, then transmission efficiency is improved, but transmission reliability deteriorates when opportunities are not available
Solution Approach 1:
The UE determines initial transmission opportunities for UCI in advance based on SPS configuration before actual transmission is needed. This preliminary scheduling allows the system to prepare transmission slots ahead of time, improving efficiency while the fallback mechanism ensures reliability when these pre-determined opportunities become unavailable
Solution Approach 2:
The system dynamically changes the transmission opportunity parameter from the initially determined opportunity to a fallback opportunity when the initial opportunity is not available. This parameter change allows the system to adapt to changing conditions while maintaining both efficiency (by using initial opportunities when possible) and reliability (by having alternative opportunities ready)
2Speed
If the UE transmits UCI at initial opportunities, then communication speed is improved, but collision risk increases leading to reduced reliability
Solution Approach 1:
The fallback transmission opportunity acts as an intermediary solution between the initial transmission opportunity and the actual transmission need. When the initial opportunity is available, transmission proceeds quickly; when it's not available, the fallback opportunity serves as a mediating alternative that prevents collision and maintains reliability
Solution Approach 2:
The system dynamically selects between initial and fallback transmission opportunities based on availability. This dynamic adjustment allows the system to maintain high communication speed when initial opportunities are available while automatically adapting to maintain reliability when collisions or unavailability occur
3Reliability
If the UE determines target transmission opportunities as fallback, then transmission reliability is improved, but transmission delay increases
Solution Approach 1:
Fallback transmission opportunities are determined in advance alongside initial opportunities, so when the initial opportunity is not available, the system can immediately switch to the pre-determined fallback opportunity without significant delay. This preliminary determination of alternatives minimizes the time loss while ensuring reliability
Data Source
AI summary
The present disclosure relates to a user equipment, UE, comprising the following. A processing circuitry of the UE determines, based on a Semi-Persistent Scheduling (SPS) configuration, an initial transmission opportunity and at least one repetitive transmission opportunity for an acknowledgement information. The processing circuitry further determines a Uplink Control Information (UCI) transmission opportunity for transmitting UCI. The processing circuitry further determines, if the UCI transmission opportunity is not available, a target transmission opportunity. A transceiver circuitry uses the target transmission opportunity for transmitting the acknowledgment information.