Uplink SRS Transmission via Dynamic Symbol Reconfiguration
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Solution Overview
Problem
Existing communication systems face challenges in ensuring reliable uplink transmission, particularly when a physical uplink shared channel (PUSCH) is reassigned for different purposes after initial resource allocation.
Innovation Solution
The method involves a terminal receiving flexible symbol information and an SRS configuration message from a base station, allowing for dynamic reconfiguration of uplink symbols. The terminal then transmits a SRS through the re-indicated uplink symbols, enabling efficient resource allocation and reuse.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dynamic resource reconfiguration is implemented for uplink transmission, then flexibility and reliability of uplink transmission are enhanced, but device complexity increases
Solution Approach 1:
The patent applies dynamics by enabling dynamic reconfiguration of uplink symbols through second SFI information that can override initial flexible symbol allocations. The terminal and base station dynamically adjust resource allocation based on real-time needs, transforming static resource assignments into adaptive, flexible configurations that improve transmission reliability while managing complexity through controlled dynamic behavior.
2Adaptability or versatility
If flexible symbol information is dynamically reconfigured, then adaptability of resource allocation is improved, but loss of time for reconfiguration processing occurs
Solution Approach 1:
The patent applies preliminary action by having the terminal receive and process second SFI information before the actual uplink transmission occurs. The base station sends reconfiguration instructions in advance, allowing the terminal to prepare and adjust its transmission parameters beforehand, thereby reducing real-time processing delays and enabling faster adaptation to changing resource allocation requirements.
3Manufacturing precision
If SRS transmission is restricted to re-indicated uplink symbols, then manufacturing precision of transmission timing is improved, but quantity of usable transmission symbols is reduced
Solution Approach 1:
The patent applies local quality by selectively applying SRS transmission restrictions to specific time locations (symbols) rather than uniformly across all available symbols. The terminal transmits SRS only in symbols that are re-indicated as uplink symbols through second SFI information, allowing precise timing control in critical transmission periods while potentially utilizing other symbols for different purposes, thus balancing precision requirements with overall transmission capacity.
Data Source
AI summary
Disclosed are a method and an apparatus for uplink transmission in a communication system. An operation method of a terminal includes: receiving, from a base station, first SFI information indicating n flexible symbol(s); receiving, from the base station, second SFI information re-indicating m symbol(s) of the n flexible symbol(s) as uplink (UL) symbol(s); and transmitting an SRS to the base station through the m symbol(s) re-indicated as a UL symbol among the n flexible symbol(s) indicated as a flexible symbol. Therefore, performance of the communication system can be improved.