Reference Signal Parameter Determination for Wireless Communication
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Solution Overview
Problem
Current wireless communication technologies face challenges in efficiently determining and transmitting reference signal parameters, particularly in high-frequency bands, where phase noise and multi-user multiplexing requirements are not adequately addressed, leading to high signaling overhead.
Innovation Solution
A method and apparatus that determine and transmit parameters of reference signals by obtaining a parameter of a first type of reference signal and using it to derive parameters for a second type of reference signal, including for data demodulation, phase noise compensation, and Doppler shift compensation, thereby reducing signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate signaling is used to notify parameters for each type of reference signal, then the parameters can be independently configured, but the signaling overhead increases
Solution Approach 1:
The first type of reference signal parameters are configured to serve multiple purposes: they directly configure the first type of reference signal and simultaneously configure the second type of reference signal through parameter association. This multi-functional approach allows a single set of signaling messages to control multiple reference signal types, reducing overall signaling overhead while maintaining configuration flexibility.
Solution Approach 2:
The patent establishes parameter associations where parameters of the second type of reference signal are derived or copied from the parameters of the first type of reference signal. This copying mechanism allows the system to reuse existing parameter configurations across different reference signal types, eliminating the need for separate independent signaling for each type and thereby reducing signaling overhead.
2Productivity
If multiple orthogonal ports are multiplexed for multi-user scheduling, then user capacity increases, but the complexity of managing orthogonal ports increases
Solution Approach 1:
The patent segments the port management complexity by associating second type reference signal parameters with first type reference signal parameters through defined relationships. This segmentation allows the system to manage multiple orthogonal ports more systematically, where the parameter association rules provide a structured approach to handling port configurations, thereby reducing the perceived complexity while maintaining high user multiplexing capacity.
3Length of moving object
If high frequency bands are used to compensate for path loss, then transmission distance improves, but phase noise becomes a significant problem
Solution Approach 1:
The patent introduces phase noise compensation reference signals as an intermediary mechanism to address the phase noise problem inherent in high frequency bands. These compensation signals act as mediators that enable the system to utilize high frequency bands for extended transmission distance while simultaneously mitigating the harmful phase noise effects through dedicated compensation procedures.
Data Source
AI summary
The embodiments of the present disclosure disclose a method for determining a parameter of a reference signal, a method for transmitting a parameter of a reference signal, a terminal device and a base station. The determination method includes: obtaining a parameter of a first type of reference signal by a first signaling; and determining a parameter of a second type of reference signal according to the obtained parameter of the first type of reference signal, and the first type of reference signal and/or the second type of reference signal include at least one of: reference signal for data demodulation, reference signal for phase noise compensation, reference signal for Doppler shift compensation, or extended reference signal for data demodulation.