Wireless Uplink Resource Prioritization for PUCCH/PUSCH Conflicts
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Solution Overview
Problem
Existing wireless communication systems face challenges in seamlessly providing various services due to overlapping uplink radio resources and prioritization issues during random access, particularly in 5G and IoT networks, leading to potential connection failures and decreased reception rates.
Innovation Solution
A method and device for prioritizing radio resources through logical channel-based prioritization in wireless communication systems, where overlapping uplink resources are identified and prioritized based on predefined priority values, ensuring critical messages are transmitted first.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If uplink radio resources are allocated for random access and regular data transmission, then resource utilization improves, but resource conflicts and connection failures increase
Solution Approach 1:
The patent segments uplink radio resources into different types (random access resources and regular data transmission resources) and applies different prioritization rules to each segment. When a conflict is detected, the system separately identifies and prioritizes critical messages over random access procedures, ensuring that resource allocation is differentiated by function and priority level.
Solution Approach 2:
The patent applies local quality by assigning different priority values to different logical channels based on their specific requirements. Critical messages (e.g., urgent data, control information) are assigned higher priority values, while regular data and random access procedures receive lower priority values. This allows the system to treat different types of traffic differently at the local channel level.
2Speed
If overlapping uplink resources are transmitted simultaneously, then transmission speed improves, but reception accuracy deteriorates
Solution Approach 1:
The patent performs preliminary detection of resource overlaps before transmission occurs. The transmitting device identifies overlapping uplink resources in advance and applies prioritization logic to determine which transmission should proceed. This preliminary action prevents harmful interference from occurring in the first place, rather than attempting to correct it after the fact.
Solution Approach 2:
The patent introduces a prioritization mechanism as an intermediary between resource allocation and actual transmission. This intermediary layer evaluates the priority of competing transmissions and mediates resource conflicts by selecting which transmission should proceed, thereby preventing interference without requiring complex coordination between devices.
3Reliability
If logical channel-based prioritization is implemented, then critical message transmission is improved, but system complexity increases
Solution Approach 1:
The patent implements prioritization by changing a single key parameter - the priority value assigned to each logical channel. Instead of implementing complex multi-dimensional evaluation, the system simply compares priority values (numerical parameters) to determine transmission order. This parameter-based approach simplifies the prioritization mechanism while still achieving reliable critical message delivery.
Data Source
AI summary
A method and device for transmitting and receiving data in a wireless communication system is provided. the method of a terminal includes, in case that transmission of a SR is pending and logical channel-based prioritization is configured for a MAC entity of the terminal, identifying whether a PUCCH resource associated with transmission of the SR overlaps with a PUSCH resource associated with transmission of a message A, in case that the PUCCH resource does not overlap with the PUSCH resource, identifying whether the PUCCH resource associated with the transmission of the SR overlaps with a PUSCH resource associated with uplink data, and in case that the PUCCH resource overlaps with the PUSCH resource, transmitting the SR or the uplink data to a base station by comparing a priority of the PUCCH resource with a priority of the PUSCH resource.