Adaptive Beam Mode Selection for Wireless Communication Reliability
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Solution Overview
Problem
In wireless communication systems, especially in the 30 GHz millimeter wave region, there is a significant path loss leading to radio shadow areas where signal propagation is hindered, necessitating the use of repeaters and requiring optimized beam management to ensure effective communication.
Innovation Solution
The implementation of an adaptive beam mode operation method, where the base station selects a beam mode for terminals based on channel status, transmitting control messages to adjust beam modes between the base station and terminal, allowing for either beam sweeping or fixed beam allocation to optimize data communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam sweeping mode is used to ensure reliable communication in mmWave region, then communication reliability is improved, but uplink overhead and terminal calculation complexity increase
Solution Approach 1:
The patent implements dynamic beam mode selection where the base station determines whether to use beam sweeping mode or fixed beam mode based on terminal mobility status. For stationary terminals, fixed beam mode is selected to reduce overhead and complexity; for mobile terminals, beam sweeping mode is selected to maintain reliability. This dynamic adaptation resolves the contradiction by adjusting the beam management strategy according to actual communication conditions.
2Adaptability or versatility
If beam sweeping mode is used to adapt to channel variations, then communication adaptability is improved, but power consumption and overhead increase
Solution Approach 1:
The system dynamically selects between beam sweeping mode and fixed beam mode based on terminal mobility. Stationary terminals use fixed beam mode which consumes less power and generates less overhead, while mobile terminals use beam sweeping mode to adapt to channel variations. The base station controls this selection through mode indication messages, optimizing the balance between adaptability and power consumption.
3Device complexity
If fixed beam mode is used for stationary terminals, then overhead and complexity are reduced, but adaptability to channel changes decreases
Solution Approach 1:
The patent implements a dynamic beam mode selection mechanism where the base station determines the appropriate mode (fixed beam or beam sweeping) based on terminal mobility status. This allows stationary terminals to benefit from reduced overhead and complexity through fixed beam mode, while maintaining the capability to switch to beam sweeping mode when channel conditions change or terminals become mobile, thus resolving the contradiction between simplicity and adaptability.
Data Source
AI summary
According to one embodiment of the present invention, provided is a method for setting a beam mode of a base station in a wireless communication system, comprising the steps of: selecting the beam mode for at least one terminal, which is serviced by the base station, on the basis of a channel state of a transmission beam or a reception beam of the base station; transmitting, to the terminal, a control message including selected beam mode information; and performing data communication with the terminal by using the transmission beam and the reception beam corresponding to the selected mode. In addition, according to one embodiment of the present invention, provided is a communication method of the terminal in the wireless communication system, comprising the steps of: receiving a beam mode setting message from the base station; setting either a beam fixation mode or a beam sweeping mode on the basis of the received beam mode setting message; and performing data communication with the base station on the basis of the set mode.