Repeater Beam Control Signaling for Wireless Coverage
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Solution Overview
Problem
Next-generation radio access networks (NR) face challenges in efficiently multiplexing radio resources based on different numerologies to meet varying requirements for data rates, latency, reliability, and coverage across diverse usage scenarios like enhanced mobile broadband, massive machine-type communication, and ultra-reliable low-latency communication, particularly in wireless coverage expansion using repeaters.
Innovation Solution
The method involves setting a beam index for a repeater's beam and configuring side control information for beam control, dividing it into semi-static and dynamic beam indication information to optimize communication between the repeater and terminal, allowing for efficient data transmission and reception based on the indicated beams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a repeater is used for wireless coverage expansion, then coverage is improved, but the complexity of beam control and resource management increases
Solution Approach 1:
The beam control signaling is segmented into two distinct types: semi-static beam indication information ( transmitted via higher layer signaling) and dynamic beam indication information (transmitted via physical downlink control channel). This segmentation allows the system to manage different beam control requirements separately, reducing overall control complexity while maintaining coverage expansion capabilities.
Solution Approach 2:
The patent implements dynamic beam indication that can adapt to changing channel conditions and terminal locations. The base station can dynamically adjust beam parameters and switch between semi-static and dynamic beam indication modes based on real-time network conditions, enabling flexible coverage management without excessive complexity.
2Adaptability or versatility
If different numerologies are multiplexed to meet varying usage scenario requirements, then adaptability is improved, but resource management complexity increases
Solution Approach 1:
The beam indication mechanism is designed to be universal and applicable across multiple usage scenarios (eMBB, mMTC, URLLC) and different numerologies. The same semi-static and dynamic beam indication framework can handle diverse service requirements by configuring appropriate beam parameters for each scenario, reducing the need for scenario-specific management mechanisms.
3Reliability
If beam control signaling is transmitted frequently to maintain optimal communication, then communication reliability is improved, but signaling overhead increases
Solution Approach 1:
The patent employs periodic semi-static beam indication transmitted through higher layer signaling at predetermined intervals, combined with dynamic beam indication only when channel conditions change significantly. This periodic approach maintains communication reliability by regularly updating beam parameters while avoiding excessive signaling overhead by not transmitting beam information continuously.
Data Source
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AI summary
Provided are a method and apparatus for relaying a signal in a wireless network. A method of controlling, by a base station, relay of a radio signal includes setting a beam index for a beam of a repeater used for communication between the repeater and a terminal, configuring side control information for beam control of the repeater based on the beam index, and transmitting the side control information to the repeater, in which the side control information is divided into semi-static beam indication information and dynamic beam indication information.