Priority-Based Beam Index Allocation for Wireless Frequency Efficiency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, existing beam-forming technologies face challenges in efficiently selecting and allocating beams to maximize frequency efficiency, particularly in high carrier frequency bands where signal transmission distance is limited, leading to reduced service coverage and interference.
Innovation Solution
A method where user equipment (UE) measures multiple beams with high reference signal received power (RSRP) and feeds back beam indices to the base station, allowing the base station to allocate beams efficiently, thereby increasing frequency efficiency by selecting the most suitable beams for communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If high carrier frequency bands are used to secure broadband frequency resources, then frequency resources are increased, but transmission distance is shortened and service coverage is reduced
Solution Approach 1:
The service coverage area is divided into multiple beam regions, each served by a specific beam direction. The base station transmits reference signals through multiple beams covering different spatial directions, and the terminal selects the appropriate beam index corresponding to its location, thereby extending effective coverage despite high frequency limitations
Solution Approach 2:
Different beams are directed toward different spatial regions with optimized signal characteristics for each direction. The terminal receives beam-specific reference signals and selects the beam index that provides the best signal quality (highest RSRP) for its specific location, achieving local optimization of transmission distance and coverage
2Length of moving object
If beam-forming technology is used to extend transmission distance, then service coverage is improved, but beam selection and allocation complexity increases
Solution Approach 1:
The base station pre-configures multiple beams covering different directions and transmits reference signals through all beams before data transmission. The terminal measures RSRP for each beam and pre-selects the optimal beam index based on these measurements, preparing beam selection information in advance to simplify subsequent data transmission scheduling
Solution Approach 2:
The terminal feeds back beam selection information (beam index) to the base station based on RSRP measurements. The base station uses this feedback to determine which beam to allocate for data transmission, creating a closed-loop system that reduces complexity by relying on terminal-based selection rather than base station-based optimization
3Area of stationary object
If multiple beams are transmitted to cover different directions, then service coverage is extended, but frequency efficiency decreases
Solution Approach 1:
The system dynamically allocates beams based on terminal location and channel conditions. Instead of continuously transmitting all beams, the base station schedules data transmission only on the beam selected by the terminal (indicated by beam index feedback), adapting resource allocation to current spatial and channel conditions to improve frequency efficiency while maintaining coverage
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances frequency efficiency by allowing UE to select beams with high RSRP, resulting in improved signal-to-noise ratio and reduced interference, while also increasing scheduling flexibility and frequency occupancy rates.
Implementation Method 1
base stations of a cellular system use a beam-forming technology. Beam-forming refers to a technique that allows one transmitter to focus the transmission direction of signals on a particular direction using one or more array antennas or horn antennas
Implementation Method 2
the terminal measures a plurality of beams with a high level of reference signal received power (RSRP)
Implementation Method 3
A method where user equipment (UE) measures multiple beams with high reference signal received power (RSRP) and feeds back beam indices to the base station
Implementation Method 4
allowing the base station to allocate beams efficiently, thereby increasing frequency efficiency by selecting the most suitable beams for communication
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention relates to a method and a device for selecting and allocating a transmission beam index having a priority. The present invention, in this regard, relates to a method for transmission and reception by a base station in a wireless communication system capable of configuring a plurality of beams, the method comprising the steps of: transmitting a reference signal, using at least one transmission beam; receiving index information of the at least one transmission beam from a terminal; and scheduling a beam corresponding to one piece of information among the index information of the at least one transmission beam for the terminal, wherein the index information is the index information of the at least one transmission beam selected by the terminal on the basis of the priority pre-configured for the plurality of beams.