Relay Device Reference Signal Configuration for Beam Management
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Solution Overview
Problem
In communication systems, smart repeaters need to perform beam sweeping to find the most suitable beam for terminal devices, but existing methods require additional signaling to indicate the optimal beam direction, leading to increased overhead and reduced communication efficiency.
Innovation Solution
A reference signal configuration method where a relay device receives configuration information from a network device to determine the corresponding beam, allowing specific beam selection on the service link without direct indication of beam forming angles, thereby reducing additional signaling overhead and enhancing communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If additional signaling is used to indicate the optimal beam direction, then the beam management accuracy is improved, but the signaling overhead increases
Solution Approach 1:
The patent uses a reference signal as a copy or representation of the beam information. Instead of directly signaling the optimal beam direction, the network device transmits a reference signal that carries beam-related information, and the terminal device measures this reference signal to determine the beam. This copying approach reduces signaling overhead while maintaining beam management accuracy.
Solution Approach 2:
The reference signal acts as an intermediary between the network device and the terminal device for beam management. Rather than directly indicating the beam direction through explicit signaling, the reference signal mediates the information transfer, allowing the terminal to infer beam information from the reference signal measurements, thus reducing the need for additional direct beam indication signaling.
2Reliability
If beam sweeping is performed to find the most suitable beam, then the communication reliability is improved, but the time consumption increases
Solution Approach 1:
The patent performs beam sweeping and reference signal transmission in advance to establish the optimal beam before actual data transmission. The network device transmits reference signals using different beams in advance, allowing the terminal to measure and report the best beam. This preliminary beam establishment reduces the time needed during actual communication while ensuring reliability.
Solution Approach 2:
The patent implements a feedback mechanism where the terminal device measures the reference signal and feeds back the measurement results to the network device. This feedback allows the network device to identify the optimal beam quickly without exhaustive beam sweeping during data transmission, thus reducing time consumption while maintaining communication reliability through informed beam selection.
Data Source
AI summary
Embodiments of the present application disclose a reference signal configuration method and apparatus. The method comprises: receiving reference signal configuration information transmitted by a network device; and according to the reference signal configuration information, determining a beam corresponding to a reference signal. Therefore, the network device can transmit a specific beam on a service link under the condition that the angle of beam generation of a relay device is not indicated directly by means of signaling, and thus, the extra signaling overhead is reduced, and the communication efficiency of a system is improved.