Split Uplink Control Allocation for Full-Duplex Interference
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing uplink control information (UCI) in full-duplex (FD) zones due to high interference, which affects the performance and priority levels of different UCI types, leading to inefficient utilization of network resources.
Innovation Solution
The proposed solution involves configuring UCI transmission in both full-duplex (FD) and non-full-duplex (non-FD) zones based on resource identifiers, where high-priority UCI is allocated to non-FD zones with lower interference and low-priority UCI is allocated to FD zones, along with dynamic signaling to support this resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If uplink control information is transmitted in full-duplex zones, then spectral efficiency and resource utilization are improved, but interference increases and signal quality deteriorates
Solution Approach 1:
The uplink control channel is segmented into multiple resources, with at least one resource configured for transmission in a non-full-duplex zone and another resource configured for transmission in a full-duplex zone. This segmentation allows different UCI to be transmitted in different interference environments, resolving the contradiction between spectral efficiency and interference.
Solution Approach 2:
Different quality characteristics are assigned to different UCI based on their transmission requirements. High-priority UCI is transmitted in non-FD zones with lower interference, while low-priority UCI is transmitted in FD zones with higher spectral efficiency. This local quality differentiation resolves the contradiction by matching transmission characteristics to specific needs.
2Device complexity
If all uplink control information is transmitted using the same resource, then device complexity is reduced, but priority levels and signal quality cannot be preserved
Solution Approach 1:
The base station dynamically determines which resource to use for transmitting UCI based on the type of UCI and current transmission conditions. The base station receives indication information indicating the type of UCI to be transmitted, and dynamically selects between FD and non-FD zone resources accordingly. This dynamic approach maintains reliability without requiring complex static configurations.
3Productivity
If high-priority uplink control information is transmitted in full-duplex zones, then resource utilization is optimized, but signal quality and interference performance deteriorate
Solution Approach 1:
Different quality characteristics are assigned to different UCI based on their transmission requirements. High-priority UCI is transmitted in non-FD zones with lower interference, while low-priority UCI is transmitted in FD zones with higher spectral efficiency. This local quality differentiation resolves the contradiction by matching transmission characteristics to specific needs.
Solution Approach 2:
The uplink control channel is segmented into multiple resources, with at least one resource configured for transmission in a non-full-duplex zone and another resource configured for transmission in a full-duplex zone. This segmentation allows different UCI to be transmitted in different interference environments, resolving the contradiction between spectral efficiency and interference.
Data Source
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AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information for an uplink control channel, wherein the configuration information includes at least one of: a first resource identifier associated with a non-full-duplex (non-FD) zone, or a second resource identifier associated with a full-duplex (FD) zone. The UE may transmit uplink control information (UCI) on the uplink control channel in at least one of the non-FD zone or the FD zone in accordance with the configuration information. Numerous other aspects are provided.