gNB NR Availability Advertisement and UE Capability Indication
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Solution Overview
Problem
Current 5G or new radio (NR) wireless communication systems face challenges in efficiently indicating the availability of NR networks to user equipment (UE) and managing diverse performance dimensions and services, particularly in initial access and resource allocation procedures.
Innovation Solution
The proposed solution involves mechanisms for a next generation evolved Node B (gNB) to advertise NR availability to UE, including options for waveform numerology, transmission bandwidth, and duration, and for UE to indicate its NR capability through the random access procedure, enabling flexible resource allocation and synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the gNB transmits detailed NR availability information including waveform numerology, transmission bandwidth, and duration options to all UEs, then the UE can efficiently access NR networks and support diverse service requirements, but the signaling overhead and network complexity increase
Solution Approach 1:
The patent segments the NR capability indication process into two parts: (1) gNB transmits NR availability information including supported waveform numerologies, bandwidths, and durations via system information or RRC signaling, and (2) UE indicates its specific NR capability in the random access message (e.g., MSG3). This segmentation allows the network to broadcast general availability while UEs provide specific capability information only when needed, reducing overall signaling overhead while maintaining adaptability.
Solution Approach 2:
The patent applies local quality by allowing different UEs to indicate different NR capability parameters based on their specific needs and the network's local conditions. Each UE can selectively indicate supported waveform numerologies, bandwidths, and durations in its capability message, rather than all UEs receiving and processing identical detailed information. This localized capability indication optimizes resource usage while maintaining service diversity support.
2Productivity
If the UE indicates NR capability during the random access procedure, then the access efficiency and resource allocation optimization improve, but the random access procedure complexity increases
Solution Approach 1:
The patent merges the NR capability indication function with the existing random access procedure by incorporating the capability information into the MSG3 (RRC Connection Request) message. Instead of adding a separate capability indication step, the UE includes its NR capability parameters (waveform numerology, bandwidth, duration support) within the existing random access messaging framework. This merging approach improves access efficiency by providing capability information early in the procedure while avoiding significant increases in procedural complexity.
3Adaptability or versatility
If the system supports diverse waveform numerologies and transmission configurations for different services, then the service coverage and flexibility improve, but the resource management complexity and energy consumption increase
Solution Approach 1:
The patent implements dynamic resource allocation by allowing the gNB to configure different waveform numerologies, bandwidths, and transmission durations based on real-time service requirements and UE capability indications. The system transitions from static, one-size-fits-all configurations to dynamic, adaptive configurations where resources are optimized for each UE's specific needs and service type. This dynamic approach improves service coverage while reducing energy consumption by avoiding unnecessary transmission of unsupported configurations.
Data Source
AI summary
Fifth generation (5G) or New Radio (NR) networks may support multiple numerologies, different waveforms, and as well as transmission bandwidths and durations for that are specific for a particular user equipment (UE) to use for uplink transmissions to a next generation evolved Node B (gNB). Described herein are mechanisms by which a gNB may indicate the availability of an NR or 5G network to the UE and mechanisms by which a UE may indicate NR capability to the gNB.