Wireless Beam Information Allocation for Reduced Path Loss
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Solution Overview
Problem
The increasing demand for wireless data traffic exceeds the capabilities of current 4G systems, which face challenges in providing a higher data transfer rate due to limited spectral efficiency and propagation path loss, especially at higher frequencies, leading to reduced service coverage and interference issues.
Innovation Solution
Implementing beamforming techniques using array antennas to focus signals in specific directions, allowing for improved propagation distance and reduced interference, while utilizing repeaters in indoor environments to enhance signal transmissivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If beamforming is applied using array antennas, then propagation distance and antenna gain are improved, but device complexity increases
Solution Approach 1:
The patent segments the beamforming process into distinct phases: beam measurement phase where multiple beams are evaluated, and beam allocation phase where the best beam is selected and communicated to the receiver. This segmentation allows the system to achieve long propagation distances through beamforming while managing complexity by processing beam information in organized stages rather than simultaneously handling all beamforming computations.
Solution Approach 2:
The patent implements preliminary beam measurement and evaluation before actual data transmission. The transmitter pre-calculates and measures multiple candidate beams, then communicates beam information to the receiver in advance. This preliminary action allows the system to establish optimal beam paths beforehand, reducing real-time computational complexity during actual communication while maintaining the propagation distance benefits of beamforming.
2Productivity
If higher frequency bands are used to increase data transfer rate, then spectral efficiency is improved, but propagation path loss increases
Solution Approach 1:
The patent changes the parameter of beam direction and characteristics dynamically based on channel conditions. By adjusting beamforming parameters such as phase shifts and amplitude weights across multiple antennas, the system concentrates signal energy in specific directions, compensating for the higher propagation path loss inherent in high-frequency bands and enabling sustained high data transfer rates over distance.
Solution Approach 2:
The patent employs a composite approach combining multiple antenna elements working together in an array configuration. This composite structure creates constructive interference in desired directions and destructive interference in other directions, effectively multiplying the signal strength and overcoming the propagation path loss that would otherwise limit high-frequency communication performance.
3Object-affected harmful factors
If beamforming focuses signals in specific directions, then interference to other users is reduced, but service coverage area is limited
Solution Approach 1:
The patent implements dynamic beam allocation where the transmitter continuously measures channel conditions and updates beam information based on receiver feedback. This dynamic adaptation allows the system to switch between different beam directions and configurations, maintaining low interference to other users through focused transmission while expanding effective service coverage by serving multiple users in different spatial locations at different times through rapid beam switching.
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
Enhances data transfer rates and service coverage by reducing propagation path loss and interference, enabling efficient communication in both outdoor and indoor settings.
Implementation Method 1
Beamforming for transmission, which is performed for transmission signals, normally uses a plurality of antennas to focus signals transmitted from the antennas in a specific direction
Implementation Method 2
The beamforming for reception increases sensitivity of reception signals entering in a corresponding direction by focusing reception of waves in a specific direction, and blocks interference signals by excluding signals received in directions other than the corresponding direction
Data Source
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AI summary
The present disclosure relates to transmitting and receiving beam information in a wireless communication system. An operation of a receiving end includes: generating a signal indicating two or more analogue transmission beams which are allocable to the receiving end; and transmitting the signal. In addition, the present disclosure includes other embodiments different from the embodiment described above.