High-Speed UE Capability Signaling for Millimeter-Wave Beam Management
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Solution Overview
Problem
Current 5G communication systems face challenges in supporting high-speed mobile scenarios, particularly in millimeter wave bands, due to propagation loss and Doppler frequency shifts, leading to limitations in data rates and network optimization for terminals with high mobility, such as high-speed trains, where beam management and radio resource management are inadequate.
Innovation Solution
A method involving user equipment (UE) and network-side entities to exchange capability and operating mode information, allowing the network to adjust configurations for optimized communication in high-speed scenarios, including reporting power class, beamforming, and radio resource management adjustments, such as fixing the aiming direction of the terminal antenna panel, that is, optimizing the beam related capacity of the terminal antenna panel, which includes adjusting beam coverage and configuring beam switching, and optimizing system configurations to support high-speed mobility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If millimeter wave frequency range is used to achieve ultra-high data rates, then data rate is improved, but propagation loss increases and transmission distance decreases
Solution Approach 1:
The patent changes the frequency parameter from sub-6GHz to millimeter wave range to achieve ultra-high data rates. This parameter change enables support for high-speed mobile scenarios with enhanced data rates while managing the associated propagation loss through advanced signal processing and beamforming techniques
Solution Approach 2:
The patent implements dynamic beam management and radio resource management that adapt to high-speed movement conditions. The system dynamically adjusts beam directions, beam widths, and resource allocations based on real-time channel conditions and terminal mobility, enabling stable millimeter wave communication at high speeds
2Length of stationary object
If beamforming and massive MIMO are used to decrease propagation loss and increase transmission distance, then transmission distance is improved, but device complexity increases
Solution Approach 1:
The patent segments the beam management process into distinct phases including beam identification, beam refinement, and beam maintenance. This segmentation allows the system to handle complex beamforming operations in manageable steps, reducing processing complexity while achieving extended transmission distance through coordinated beamforming at both transmitter and receiver
Solution Approach 2:
The patent performs preliminary beam alignment and channel estimation before actual data transmission. By pre-configuring beam directions and predicting channel conditions based on terminal mobility patterns, the system reduces real-time processing complexity while maintaining extended transmission distance through advance optimization
3Reliability
If radio resource management is optimized for high-speed scenarios, then communication quality is improved, but system complexity increases
Solution Approach 1:
The patent implements feedback mechanisms where the terminal reports channel quality indicators, beam measurement results, and mobility status to the network. This feedback enables the network to optimize radio resource allocation, beam management parameters, and scheduling decisions dynamically, improving communication quality while managing system complexity through automated closed-loop control
Solution Approach 2:
The patent enables the terminal to autonomously perform beam selection, beam refinement, and basic radio resource management decisions based on pre-configured parameters and local measurements. This self-service capability reduces the processing burden on the network while maintaining high communication quality through distributed intelligence at the terminal side
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 method enables effective communication in high-speed scenarios by optimizing network configurations based on UE capabilities, enhancing beam management and radio resource management, thus improving communication quality and data rates in millimeter wave frequency ranges.
Implementation Method 1
the beamforming, massive multiple-input multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, an analog beam forming, large scale antenna techniques are discussed in 5G communication systems
Implementation Method 2
To decrease propagation loss of the radio waves and increase the transmission distance
Data Source
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AI summary
The present disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as long term evolution (LTE). The present disclosure provides a method performed by a user equipment in a wireless communication system, and the user equipment. The method comprises: transmitting information indicating a high speed capability of the UE to a network-side entity; and receiving configuration information corresponding to the high speed capability of the UE from the network-side entity.