Uplink Resource Multiplexing for Overlapping PUCCH and PUSCH
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Solution Overview
Problem
Existing communication technologies lack a method for a terminal device to transmit uplink information when time domain resources of multiple physical uplink control channels (PUCCHs) overlap with those of physical uplink shared channels (PUSCHs), particularly in scenarios involving multiple transmission/reception points (TRPs).
Innovation Solution
The terminal device determines overlapping time domain resources of PUCCHs and PUSCHs and either multiplexes uplink control information (UCI) onto PUSCHs or transmits PUCCHs while avoiding overlapping PUSCHs, utilizing same or different spatial information for PUCCHs and PUSCHs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the terminal device transmits multiple PUCCHs and PUSCHs simultaneously to multiple TRPs through multiple panels, then uplink spectrum utilization is improved, but resource conflicts occur when time domain resources overlap
Solution Approach 1:
The patent segments the uplink transmission by dividing PUCCHs and PUSCHs into different groups based on their time domain resource overlap relationships. When overlap is detected, the system segments the transmission by selecting specific PUCCHs for transmission and excluding overlapping PUSCHs, thereby resolving resource conflicts while maintaining efficient spectrum utilization through selective simultaneous transmission to multiple TRPs.
2Productivity
If the terminal device multiplexes UCI from multiple PUCCHs onto PUSCHs, then transmission efficiency is improved, but complexity increases in determining which PUSCH to use
Solution Approach 1:
The patent applies preliminary action by establishing predetermined rules and criteria for selecting PUSCH resources before actual transmission occurs. The terminal device determines time domain resource overlaps in advance and pre-configures multiplexing strategies, such as selecting the first available PUSCH or using specific selection criteria based on priority, thereby reducing real-time decision complexity while maintaining high transmission efficiency through organized UCI multiplexing.
Data Source
AI summary
A terminal device is configured to perform: determining that time domain resources of a plurality of PUCCHs partially or completely overlap with time domain resources of one or more PUSCHs; and multiplexing UCI carried by the plurality of PUCCHs onto the one or more PUSCHs for transmission, or transmitting the plurality of PUCCHs and determining not to transmit a PUSCH among the one or more PUSCHs that has a time domain resource overlapping with the time domain resources of the plurality of PUCCHs. The plurality of PUCCHs are transmitted based on same or different spatial information; a plurality of PUSCHs among the one or more PUSCHs are transmitted based on different spatial information, or a plurality of transmission layer sets of any one PUSCH among the one or more PUSCHs are transmitted based on different spatial information.