Reserved Radio Resources to Avoid Reference Signal Conflicts
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Solution Overview
Problem
There is no existing solution for resource reservation in the NB-IoT and NR systems to avoid conflicts between reference signals and data transmission, which can impact channel estimation performance.
Innovation Solution
A communication method where a network device determines and sends resource configuration information to a terminal device, ensuring that symbols used for reference signals are not used for data transmission, thereby avoiding conflicts and preserving channel estimation performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple indication signals are sent through the same communication connection, then the interaction between terminal devices is enhanced, but signal interference occurs reducing communication reliability
Solution Approach 1:
The patent segments the communication resources by introducing different communication types (first communication type and second communication type) for different indication signals. This segmentation prevents signal interference while maintaining the ability to interact with multiple terminal devices through the same communication connection.
2Device complexity
If indication signals are sent without communication type identification, then the communication process is simple, but terminal devices cannot correctly identify and process different signals
Solution Approach 1:
The patent uses different communication types as distinct identifiers (analogous to color changes) to mark different indication signals. This allows terminal devices to easily identify and differentiate between various signals without complex processing, improving signal identification accuracy while maintaining simplicity.
3Productivity
If the same communication connection is used for multiple purposes, then resource utilization is improved, but signal interference reduces communication quality
Solution Approach 1:
The patent dynamically assigns different communication types to different indication signals within the same communication connection. This dynamic differentiation allows multiple purposes to be served while preventing signal interference, thereby maintaining both high resource utilization and communication quality.
Data Source
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AI summary
Embodiments of this application provide a communication method, device, and system. When a resource is reserved, a conflict between a reference signal of a terminal device and data transmission of another terminal device can be avoided, and impact on channel estimation performance of the terminal device can be avoided. In the solutions, a network device determines resource configuration information, and sends the resource configuration information to the terminal device. The terminal device receives the resource configuration information, and determines, based on the resource configuration information, a symbol that corresponds to a first resource and that is in a first time unit. The symbol corresponding to the first resource does not include a symbol on which a reference signal is located and that is in the first time unit, and the first resource is not used for data transmission corresponding to the terminal device.