Multi-Slot PUCCH Configuration for Subband Full Duplex Slots
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Solution Overview
Problem
Existing 3GPP specifications do not support PUCCH transmission over multiple slots where the number of available uplink resources in the frequency domain differs between uplink-only and subband full duplex symbols, limiting the effectiveness of subband full duplex operation.
Innovation Solution
Implement methods and systems for PUCCH transmission that span both uplink-only and subband full duplex symbols, utilizing control signaling for frequency hopping and resource allocation to accommodate varying UL resources across different slot types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If PUCCH transmission is configured over multiple slots with different UL resource availability, then UL coverage and transmission opportunities are improved, but existing 3GPP specifications do not support this operation
Solution Approach 1:
The patent implements dynamic PUCCH repetition across slots with varying UL resource availability by introducing slot-type-specific configurations. The system dynamically adapts the PUCCH transmission behavior based on whether each slot is UL-only or SBFD, allowing the same PUCCH resource to be repeated across different slot types while adjusting resource allocation and frequency hopping patterns according to the specific slot characteristics.
2Productivity
If PUCCH transmission spans both UL-only and SBFD symbols, then transmission opportunities are enhanced, but resource allocation complexity increases due to varying UL resources
Solution Approach 1:
The patent segments the PUCCH transmission configuration by slot type, defining separate resource allocation rules for UL-only slots and SBFD slots. This segmentation allows the system to handle each slot type with appropriate resource allocation strategies, simplifying the overall complexity by treating different slot types independently rather than requiring a single complex unified configuration.
Solution Approach 2:
The patent applies local quality by configuring PUCCH resources specifically tailored to each slot type's characteristics. UL-only slots receive full-bandwidth resource allocation while SBFD slots receive allocation restricted to available UL subbands. This localized optimization ensures each slot type utilizes resources appropriately for its specific conditions, enhancing transmission opportunities without requiring overly complex global resource management.
3Reliability
If frequency hopping is configured for PUCCH transmission, then frequency diversity is improved, but resource allocation must account for different UL subband availability in SBFD symbols
Solution Approach 1:
The patent changes the frequency hopping parameters dynamically based on slot type. In UL-only slots, frequency hopping can utilize the full bandwidth with standard hopping patterns. In SBFD slots, the frequency hopping parameters are adjusted to operate within the limited UL subband availability. This parameter adaptation maintains frequency diversity benefits while accommodating the varying resource constraints of different slot types.
Data Source
AI summary
A method, system and apparatus are disclosed. According to one aspect of the present disclosure, a wireless device is provided. The wireless device is configured to receive control signaling for a physical uplink control channel, PUCCH, transmission. Wireless device is configured to perform the PUCCH transmission based on the control signaling, the PUCCH transmission spanning a plurality of slots, the plurality of slots including at least one slot containing at least one UL-only symbol and at least one slot containing at least one subband full duplex, SBFD, symbol, and the PUCCH transmission spans the at least one UL-only symbol and the at least one SBFD symbol.