PUCCH Target-Set Selection for Conflict-Free Repetition
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Solution Overview
Problem
Existing conflict resolution mechanisms for PUCCH repetition in wireless communication systems fail to ensure consistent understanding between terminal devices and network devices when multiple PUCCHs with repetition transmission are included in a single slot, leading to transmission failures.
Innovation Solution
A wireless communication method that determines a target PUCCH set by ensuring no overlapping PUCCHs with repetition transmission exist within the set, using priority rules and starting slot conditions to ensure consistent understanding and normal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple PUCCHs with repetition transmission are included in a single slot, then transmission capacity is improved, but transmission reliability deteriorates due to conflicts causing inconsistent understanding between terminal device and network device
Solution Approach 1:
The patent segments the PUCCH transmission resources by introducing a target PUCCH set concept that divides multiple PUCCHs into groups. By determining a specific target PUCCH set from multiple PUCCHs with repetition transmission, the system avoids conflicts between overlapping PUCCHs while maintaining the ability to transmit multiple PUCCHs in a slot. This segmentation approach resolves the contradiction by organizing transmissions into manageable, non-conflicting groups.
Solution Approach 2:
The patent applies preliminary action by determining the target PUCCH set before actual transmission occurs. The terminal device and network device both perform the determination of which PUCCHs form the target set based on pre-established rules involving starting slots and repetition configurations. This preliminary determination ensures both parties have consistent understanding before transmission, preventing conflicts while maintaining high transmission capacity.
2Reliability
If a conflict resolution mechanism is implemented for PUCCH repetition, then transmission conflicts are reduced, but transmission failures occur due to inconsistent understanding between terminal device and network device when multiple PUCCHs with repetition are included
Solution Approach 1:
The patent implements feedback by establishing deterministic rules that both terminal device and network device use to determine the target PUCCH set. The rules consider starting slots, repetition configurations, and PUCCH indices in a systematic way that provides consistent feedback to both parties. This ensures both devices arrive at the same target PUCCH set determination, eliminating inconsistent understanding while maintaining high transmission success rates.
Solution Approach 2:
The patent changes key parameters such as starting slot positions and repetition configurations to determine which PUCCHs form the target set. By systematically evaluating these parameters according to established rules, the system identifies a unique target PUCCH set that both terminal and network devices can determine consistently. This parameter-based approach resolves conflicts while preserving transmission productivity.
3Device complexity
If priority-based PUCCH selection is used during overlapping repetitions, then resource conflicts are managed, but transmission reliability deteriorates due to inconsistent understanding of which PUCCH to transmit
Solution Approach 1:
The patent creates equipotentiality by establishing equal evaluation criteria for both terminal device and network device when determining the target PUCCH set. Both parties use the same rules based on starting slots, repetition configurations, and PUCCH indices, ensuring they reach the same conclusion. This equipotential approach eliminates inconsistent understanding while providing systematic conflict management, thereby maintaining transmission consistency.
Data Source
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AI summary
A wireless communication method, a terminal device and a network device are provided. The wireless communication method includes: determining, by a terminal device, a target PUCCH set from a plurality of PUCCHs to be transmitted, in a case that the plurality of PUCCHs to be transmitted exist in a first slot, and the plurality of PUCCHs to be transmitted include at least two PUCCHs with repetition transmission. PUCCHs in the target PUCCH set meet a first condition, and the first condition includes that: if overlapping PUCCHs exist, the at least two PUCCHs with repetition transmission are not included in the overlapping PUCCHs; or no overlapping PUCCHs exist.