PUCCH Resource Configuration for Mixed Duplex Slots
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Solution Overview
Problem
In wireless communication systems, particularly in next-generation radio access technology (NR), there is a need to clearly specify the uplink channel transmission method for user equipment (UE) in full duplex (FD) environments, where both downlink and uplink transmissions occur simultaneously. Additionally, the coexistence of FD and half-duplex (HD) time resources during repeated transmission of the uplink control channel has not been adequately addressed.
Innovation Solution
The method involves receiving first and second physical uplink control channel (PUCCH) resource configuration information, which are independent of each other. The UE then transmits a PUCCH over multiple slots by applying either the first or second PUCCH resource configuration information to each slot. This application is based on whether the specific slot is a half-duplex (HD) slot or a full-duplex (FD) slot, ensuring appropriate resource utilization during PUCCH repeated transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If full duplex operation is performed with both downlink and uplink transmissions occurring simultaneously, then communication capacity is improved, but resource allocation complexity increases
Solution Approach 1:
The patent segments PUCCH resources into separate configurations for HD slots and FD slots. The network device configures first PUCCH resources for HD slots and second PUCCH resources for FD slots, allowing independent optimization of resource allocation for each duplex mode without interference, thus managing complexity while maintaining high communication capacity
Solution Approach 2:
The patent implements dynamic resource selection where the UE determines which PUCCH resource configuration to apply based on the duplex mode of each slot. The UE dynamically switches between first PUCCH resources and second PUCCH resources according to whether the current slot is HD or FD, enabling adaptive resource allocation that matches actual transmission requirements
2Reliability
If PUCCH repeated transmission is performed across multiple slots with mixed HD and FD modes, then transmission reliability is improved, but resource configuration clarity deteriorates
Solution Approach 1:
The patent divides PUCCH resource configurations into distinct sets for HD and FD slots. By configuring separate resource pools for each duplex mode, the patent ensures that the UE has clear, unambiguous resource allocation information for each slot type, eliminating confusion even when transmissions span multiple slots with different duplex modes
Solution Approach 2:
The patent applies different resource configuration qualities to different slot types. First PUCCH resources are optimized for HD slot characteristics while second PUCCH resources are optimized for FD slot characteristics, ensuring that each transmission uses resources specifically tailored to its operational context, thereby maintaining both clarity and reliability
3Productivity
If independent PUCCH resource configurations are provided for HD and FD slots, then resource use efficiency is improved, but configuration complexity increases
Solution Approach 1:
The patent creates a universal resource configuration framework where the network device provides both first PUCCH resources and second PUCCH resources as part of a unified configuration set. The UE universally applies the appropriate configuration based on slot type, allowing the system to handle both HD and FD operations through a single, integrated mechanism rather than separate independent systems
Solution Approach 2:
The UE autonomously determines which PUCCH resource configuration to apply based on the duplex mode indication in each slot. The UE self-manages the selection between first and second PUCCH resources without requiring additional network signaling for each slot, reducing configuration overhead while maintaining efficient resource utilization
Data Source
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AI summary
An operating method of a device in a wireless communication system, and the device are provided. The device can be a terminal, a chipset, or a base station. The terminal receives first PUCCH resource configuration information and second PUCCH resource configuration information, which are independent of each other, and applies the first PUCCH resource configuration information or the second PUCCH resource configuration information to each of a plurality of slots so as to transmit a PUCCH through the plurality of slots. The first PUCCH resource configuration information or the second PUCCH resource configuration information is applied to the specific slot on the basis of whether a specific slot from among the plurality of slots is a half duplex slot or a full duplex slot.