Type-3 HARQ-ACK Codebook Multiplexing for Uplink Resource Collisions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication technologies face limitations in one-shot hybrid automatic repeat request acknowledgement (HARQ ACK) codebook transmission, particularly in the use of DCI format 1_1 for triggering Type-3 HARQ-ACK codebooks, which restricts flexibility and efficiency.
Innovation Solution
Enhancements to the Type-3 HARQ-ACK codebook transmission by allowing triggering with DCI formats other than DCI format 1_1, such as DCI formats 0_1 and 0_2, and enabling transmission via both physical uplink control channel (PUCCH) and physical uplink shared channel (PUSCH), with prioritization and multiplexing mechanisms for resource collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If DCI format 1_1 is used to trigger Type-3 HARQ-ACK codebook, then the triggering mechanism is standardized, but the flexibility and efficiency of codebook transmission is restricted
Solution Approach 1:
The patent extends the triggering capability of Type-3 HARQ-ACK codebook from solely DCI format 1_1 to multiple DCI formats including 0_1, 0_2, 1_1, and 1_2. This multi-functionality allows different DCI formats to serve the same triggering purpose, significantly improving flexibility while maintaining standardized procedures through unified handling rules.
2Productivity
If Type-3 HARQ-ACK codebook is transmitted via PUCCH only, then the transmission protocol is simplified, but the resource utilization efficiency is reduced
Solution Approach 1:
The patent introduces dynamic selection between PUCCH and PUSCH transmission channels for Type-3 HARQ-ACK codebook. The transmission channel is adaptively chosen based on scheduling conditions, resource availability, and collision scenarios, optimizing resource utilization while managing complexity through conditional rules.
Solution Approach 2:
The patent introduces a prioritization mechanism that acts as an intermediary between conflicting transmission requirements. When resource collisions occur between Type-3 HARQ-ACK codebook and other uplink transmissions, the prioritization rules mediate the conflict by determining transmission precedence, thereby improving resource utilization while maintaining systematic control.
3Adaptability or versatility
If multiple DCI formats are allowed to trigger Type-3 HARQ-ACK codebook, then the transmission flexibility is improved, but the processing complexity increases
Solution Approach 1:
The patent applies homogeneous handling rules across all supported DCI formats (0_1, 0_2, 1_1, 1.2) for triggering Type-3 HARQ-ACK codebook. Despite the diversity in DCI formats, unified procedures are established for codebook construction, transmission timing determination, and resource allocation, reducing processing complexity while maintaining broad compatibility.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
According to some embodiments, a method performed by a wireless device for transmitting a Type-3 hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook comprises receiving downlink control information (DCI) requesting a Type-3 HARQ-ACK codebook, wherein the DCI request is of a DCI format other than DCI format 1_1 for a physical downlink shared channel (PDSCH) transmission, and based on the DCI request, transmitting the Type-3 HARQ-ACK codebook to a network node.