SRS Antenna Port Mapping for Multi-Port NR Terminals
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Solution Overview
Problem
The challenge of mapping SRS resources effectively for terminals with more than 4 antenna ports in NR systems to ensure optimal reception performance is not adequately addressed in traditional NR systems.
Innovation Solution
A method for SRS transmission that involves determining and mapping multiple antenna ports to specific time and frequency domain resources, considering factors such as the number of antenna ports, time units, repetition factors, and frequency hops, to optimize SRS resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional NR system SRS resource mapping is used, then the system is simple to implement, but it cannot support terminals with more than 4 antenna ports effectively
Solution Approach 1:
The patent segments the mapping of antenna ports to time-frequency resources by introducing multiple parameters (L, K, M, N) that divide the resource allocation into manageable units. This allows systematic support for more than 4 antenna ports while maintaining structured resource mapping
Solution Approach 2:
The patent extends the traditional mapping by introducing additional dimensional parameters (L for time units, K for antenna ports per time unit, M for frequency hops, N for frequency resources) beyond the basic single-time-unit mapping, enabling support for higher antenna port counts through multi-dimensional resource allocation
2Adaptability or versatility
If SRS resources include more antenna ports (more than 4), then terminal capability is enhanced, but reception performance deteriorates without proper mapping
Solution Approach 1:
The patent changes the mapping parameters (L, K, M, N) based on the number of antenna ports to optimize reception performance. By adjusting these parameters, the system can accommodate different terminal capabilities while maintaining reliable signal reception through appropriate resource distribution
3Productivity
If multiple antenna ports are mapped to the same time domain resource, then resource utilization is efficient, but channel estimation accuracy deteriorates
Solution Approach 1:
The patent segments antenna ports across multiple time domain resources using parameter L (number of time units), which distributes the transmission burden and improves channel estimation accuracy while maintaining overall resource utilization efficiency through systematic allocation
Data Source
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AI summary
Embodiments of the present disclosure provide an SRS transmission method, device and apparatus, and a storage medium. The method comprises: a terminal determining, on the basis of first information, time domain resources and/or frequency domain resources to which multiple antenna ports of an SRS resource are mapped, wherein at least two antenna ports among the multiple antenna ports of the SRS resource are mapped to different time domain resources; and on the basis of the time domain resources and/or the frequency domain resources, sending to a network device an SRS corresponding to the SRS resource.