SRS Resource Configuration for Multi-Antenna Port Switching
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Solution Overview
Problem
Current communication technologies face challenges in efficiently configuring resources for sounding reference signal (SRS) antenna switching, particularly with increased antenna ports, as they lack detailed solutions for resource configuration and power control, especially for aperiodic SRS antenna switching.
Innovation Solution
The method involves determining a second number of resources from a first number associated with a terminal device's transmit and receive antenna ports, allowing for improved resource configuration and power allocation for SRS communication, enabling effective communication even with up to eight antenna ports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If more antenna ports are configured for SRS transmission, then channel estimation accuracy and communication performance are improved, but resource configuration complexity and power control difficulty increase
Solution Approach 1:
The patent segments the SRS resource configuration by defining separate parameter sets for different antenna port quantities. The network device configures multiple parameter sets, each corresponding to a specific antenna port quantity (1, 2, 4, or 8 ports), and the terminal device selects the appropriate parameter set based on the actual antenna port configuration. This segmentation approach manages complexity by organizing resources into structured, selectable groups rather than requiring individual configuration of numerous parameters.
Solution Approach 2:
The patent employs parameter changes by defining different parameter sets that vary based on the antenna port quantity. Each parameter set contains specific configurations for SRS resources, including resource allocation, power control parameters, and transmission timing. When the antenna port quantity changes, the terminal device switches to the corresponding parameter set, automatically adjusting all relevant parameters to match the new configuration scale.
2Productivity
If more antenna ports are used for SRS communication, then communication performance and spectral efficiency are improved, but power control and resource allocation become more difficult
Solution Approach 1:
The patent defines power control parameters within each parameter set that correspond to different antenna port quantities. Each parameter set includes specific power control configurations such as power offsets, scaling factors, and maximum power limits tailored to the number of antenna ports. This allows the terminal device to automatically apply appropriate power control settings when switching between different antenna configurations, simplifying the operation of power management across multiple ports.
3Adaptability or versatility
If detailed resource configuration is provided for all antenna port combinations, then communication flexibility is improved, but signaling overhead and configuration complexity increase
Solution Approach 1:
The patent creates universal parameter sets that can be applied across different antenna port configurations. Each parameter set is designed to be multi-functional, supporting various SRS transmission scenarios (periodic, semi-persistent, and aperiodic) and different antenna port quantities (1, 2, 4, or 8 ports). This universality reduces signaling overhead by avoiding the need to define separate configurations for every possible combination of transmission types and antenna ports.
Solution Approach 2:
The network device performs preliminary action by pre-configuring multiple parameter sets in advance, each optimized for specific antenna port quantities. These parameter sets are prepared and stored before actual SRS transmission occurs. When the terminal device needs to transmit SRS with a particular antenna port configuration, it simply selects the pre-configured parameter set that matches, avoiding the need for real-time calculation or complex on-the-fly configuration adjustments.
Data Source
AI summary
Embodiments of the present disclosure relate to methods, devices and computer readable media for communication of a RS. A method of communication comprises determining, at a network device, information indicating a first number of resources configured for communication of a RS, the first number being associated with a third number of transmit antenna ports and a fourth number of receive antenna ports of a terminal device and the fourth number being larger than a predetermined number; and transmitting the information to the terminal device. The method further comprises receiving, at the terminal device, the information; determining a second number of resources from the first number of resources, the first number being larger than or equal to the second number; and performing the communication of the RS based on the second number of resources. Embodiments of the present disclosure can achieve a RS resource configuration and a RS communication for increased antenna ports.