RF Link Sharing via Reference Signal Configuration
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Solution Overview
Problem
In wireless communication systems, idle radio frequency links lead to resource wastage as terminals often do not utilize all available links simultaneously, resulting in suboptimal communication efficiency.
Innovation Solution
A method where terminals receive configuration information to send reference signals on different antenna ports or quantities of antenna ports, allowing network devices to determine channel quality and enable radio frequency link sharing, thereby improving link utilization and uplink transmission rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a terminal is provided with multiple radio frequency links to communicate with multiple network devices, then the terminal can access multiple network devices and provide communication flexibility, but idle radio frequency links exist causing resource waste
Solution Approach 1:
The patent enables a radio frequency link to serve multiple network devices by allowing the terminal to send reference signals through the same antenna port to different network devices. The network devices share the radio frequency link opportunistically, with each device receiving service when the other is idle, thus making the radio frequency link universal and eliminating resource waste while maintaining communication flexibility
2Productivity
If a terminal sends reference signals through the same antenna port to multiple network devices, then radio frequency link sharing is achieved and resource utilization is improved, but channel quality determination becomes more complex
Solution Approach 1:
The patent segments the channel quality determination process by allocating different reference signal resources (different time-frequency resources or different reference signal sequences) to different network devices. This segmentation allows each network device to independently determine channel quality for its specific reference signals, simplifying the overall process despite multiple devices sharing the same antenna port
3Measurement precision
If different reference signal resources are configured for different antenna ports, then channel quality of multiple radio frequency links can be determined, but configuration information and signal processing complexity increases
Solution Approach 1:
The patent merges the configuration of reference signal resources across multiple antenna ports by using a unified configuration approach where the same reference signal resources can be allocated to multiple antenna ports. This reduces configuration complexity while maintaining the ability to accurately measure channel quality for each antenna port through the shared reference signals
Data Source
AI summary
A communications method and apparatus implement radio frequency link sharing, improve radio frequency link utilization, and increase an uplink transmission rate. The method is as follows: a terminal receives first configuration information and second configuration information from a first network device. The first configuration information is used to indicate a first reference signal resource of a first antenna port, and the second configuration information is used to indicate a second reference signal resource of a second antenna port; or the first configuration information is used to indicate a third reference signal resource of a first quantity of antenna ports, and the second configuration information is used to indicate a fourth reference signal resource of a second quantity of antenna ports. The terminal sends a first reference signal based on the first configuration information and sends a second reference signal based on the second configuration information.