Uplink Control Channel Spatial Relations in Multi-TRP Repetition
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Solution Overview
Problem
The challenge of configuring spatial relations in the transmission of uplink control channels in multi-TRP or multi-panel communication systems is not adequately addressed, impacting transmission reliability and throughput in enhanced mobile broadband and ultra-reliable low-latency communications scenarios.
Innovation Solution
A configuration method is provided to determine and indicate spatial relations associated with uplink control channels during repeated transmissions, utilizing transmission indication information to effectively manage beam switching and frequency hopping configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple transmission and reception points are used for transmission, then transmission throughput is increased, but spatial relation configuration complexity increases
Solution Approach 1:
The patent introduces transmission indication information as an intermediary mechanism to manage spatial relations in multi-TRP scenarios. This indication information acts as a mediator between the multiple transmission points and the uplink control channel, enabling the system to coordinate spatial relationships without requiring complex direct configuration between each TRP and the channel. The indication information simplifies the configuration process while maintaining the throughput benefits of multi-TRP transmission.
2Reliability
If repeated transmissions of uplink control channel are performed, then transmission reliability is improved, but configuration of spatial relations becomes more difficult
Solution Approach 1:
The patent applies preliminary action by configuring spatial relations before the repeated transmissions occur. The transmission indication information is prepared and provided in advance, allowing the uplink control channel to be configured with appropriate spatial relationships prior to the repeated transmission process. This preliminary configuration enables reliable repeated transmissions without requiring complex real-time configuration adjustments during each transmission cycle.
3Productivity
If beam switching and frequency hopping are configured, then transmission performance is optimized, but configuration complexity increases
Solution Approach 1:
The patent makes the transmission indication information serve multiple functions: it simultaneously indicates spatial relations, beam switching configurations, and frequency hopping parameters. By consolidating these multiple configuration tasks into a single indication information structure, the patent reduces overall configuration complexity while maintaining the performance benefits of beam switching and frequency hopping in the repeated transmission process.
Data Source
AI summary
Provided are a configuration method, a communication node, and a storage medium. The configuration method includes: acquiring transmission indication information; and determining a spatial relation associated with an uplink control channel corresponding to the transmission indication information during repeated transmssions of the uplink control channel.