High-Speed UE Capability Reporting for Millimeter-Wave Mobility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge of implementing high-speed mobile communication in millimeter wave frequency ranges is hindered by technical differences and limited spectrum resources, leading to issues such as propagation loss, high Doppler frequency shifts, and inadequate network optimization due to lacking dedicated reporting of terminal capabilities, which affects uplink and downlink transmissions and reception in high-speed scenarios.
Innovation Solution
A method where user equipment (UE) reports its capabilities and operating modes to a network-side entity, allowing the network to adjust system configurations optimally for high-speed mobility, including adjustments to RF requirements, beam management, and radio resource management to enhance communication quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If millimeter wave frequency bands are used to achieve higher data rates, then data transmission speed is improved, but propagation loss increases and transmission distance decreases
Solution Approach 1:
The patent applies parameter changes by adjusting RF requirements, beam management configurations, and radio resource management parameters based on UE mobility capabilities. The network configures different parameter sets for high-speed and low-speed UEs, including modifying beam sweeping patterns, reference signal configurations, and handover thresholds to compensate for propagation loss at millimeter wave frequencies.
2Length of stationary object
If beamforming and massive MIMO techniques are deployed 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 multiple stages including initial beam acquisition, beam refinement, and beam maintenance. The UE capability information is segmented into specific components (e.g., beamforming support, mobility categories) that enable the network to selectively apply complex beamforming techniques only where necessary, reducing overall system complexity while maintaining transmission distance.
3Ease of operation
If the network configures standard parameters for all UEs, then ease of operation is improved, but communication quality in high-speed scenarios deteriorates due to inadequate optimization
Solution Approach 1:
The patent implements dynamic parameter configuration where the network adapts RF requirements, beam management settings, and radio resource allocation based on real-time UE mobility capability reports. The system transitions from static universal configuration to dynamic personalized configuration, adjusting parameters such as beam sweeping frequency, reference signal density, and handover margins according to each UE's specific mobility category.
4Reliability
If dedicated capability reporting for high-speed mobility is implemented, then communication quality in high-speed scenarios is improved, but loss of information increases due to additional signaling overhead
Solution Approach 1:
The patent extracts only the essential capability information needed for high-speed mobility optimization from the UE and reports it to the network. The capability report includes specific fields such as maximum supported speed, beamforming capability, and mobility category, rather than transmitting complete UE capability sets. This selective extraction reduces signaling overhead while providing sufficient information for network optimization.
Data Source
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.