Uplink PUCCH and PUSCH Overlap Handling via Priority Parameters
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Solution Overview
Problem
Current mobile communication systems, particularly in 5G networks, face challenges in ensuring transmission reliability for high-priority services like URLLC due to overlapping PUCCH and PUSCH resources, leading to potential delays and dropped transmissions, especially when timing requirements are not met.
Innovation Solution
A method and device for transmitting uplink information that determines the transmission manner for PUCCH and PUSCH based on priority parameters, including service type and reliability requirements, allowing for partial or complete multiplexing of UCI into PUSCH, and prioritizing transmission of high-priority channels to ensure reliable data transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If PUCCH and PUSCH resources overlap in time domain, then resource utilization increases, but transmission reliability of high-priority services deteriorates due to potential delays and dropped transmissions
Solution Approach 1:
The patent applies local quality by differentiating treatment of overlapping resources based on service priority. High-priority services (URLLC) receive preferential treatment through separate transmission or higher multiplexing priority, while low-priority services (eMBB) are multiplexed or dropped. This localized differentiation ensures transmission reliability for critical services while maintaining resource utilization for non-critical services.
Solution Approach 2:
The patent changes the parameter of transmission priority by introducing priority levels for different services. The network device determines service priority and dynamically adjusts transmission behavior accordingly - high-priority services use separate transmission resources or have higher multiplexing priority, while low-priority services are multiplexed onto PUSCH or dropped when resources overlap, thus resolving the contradiction between resource utilization and transmission reliability.
2Productivity
If UCI is multiplexed onto PUSCH, then resource efficiency improves, but transmission reliability of control information deteriorates when PUSCH is dropped
Solution Approach 1:
The patent applies preliminary action by having the network device determine service priority before the actual transmission occurs. Based on this pre-determined priority, the system decides whether to multiplex UCI onto PUSCH or transmit separately. This advance planning ensures that when resources overlap, the system has already established the transmission strategy to protect control information reliability while maintaining resource efficiency.
Solution Approach 2:
The patent applies local quality by differentiating the multiplexing behavior based on service priority. For high-priority services, UCI is transmitted separately or given higher multiplexing priority to ensure reliability. For low-priority services, UCI is multiplexed onto PUSCH to improve resource efficiency. This localized differentiation resolves the contradiction between resource efficiency and control information reliability.
3Reliability
If separate transmission of PUCCH and PUSCH is used, then transmission reliability of high-priority services improves, but resource waste increases
Solution Approach 1:
The patent applies local quality by applying separate transmission only where necessary - specifically for high-priority services when resources overlap. For low-priority services, the system uses multiplexing to avoid resource waste. This localized application of separate transmission ensures reliability for critical services while minimizing resource waste for non-critical services.
Solution Approach 2:
The patent changes the transmission parameter dynamically based on service priority. When service priority is high and resources overlap, the system switches to separate transmission to ensure reliability. When service priority is low or resources don't overlap, the system uses multiplexing to improve resource utilization. This dynamic parameter adjustment resolves the contradiction between reliability and resource waste.
4Reliability
If priority-based transmission scheduling is implemented, then transmission reliability of high-priority services improves, but system complexity increases
Solution Approach 1:
The patent applies preliminary action by having the network device determine and configure service priority in advance through RRC signaling or DCI. This pre-establishment of priority parameters simplifies the actual transmission scheduling, as the terminal device only needs to follow the pre-configured priority rules rather than making complex real-time decisions, thus improving reliability while limiting complexity increase.
Solution Approach 2:
The patent applies self-service by enabling the terminal device to autonomously determine transmission behavior based on pre-configured priority parameters. The terminal uses the received priority information to automatically decide whether to multiplex or transmit separately, reducing the need for complex network-side scheduling and minimizing system complexity while ensuring high-priority service reliability.
Data Source
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AI summary
Disclosed in the present invention is an uplink information transmission method, comprising: determining whether a time domain resource of a PUCCH and a time domain resource of a PUSCH overlap each other in time domain, and if yes, determining a transmission mode of the PUCCH and/or the PUSCH according to a priority parameter, the priority parameter comprising: an information priority of the PUCCH, or the information priority of the PUCCH and an information priority of the PUSCH. Also disclosed in the present invention are an information transmission device and a storage medium.