Dynamic Spectrum Sharing Carrier Signaling for Multi-RAT Scheduling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing dynamic spectrum sharing (DSS) between different radio access technologies (RATs) due to limited signaling efficiencies and increased latency, which are critical issues in the transition to the 5G New Radio (NR) standard.
Innovation Solution
Implementing methods and devices that enable user equipment (UE) and network entities to transmit and receive dynamic spectrum sharing (DSS) capability indications and scheduling information, as well as process downlink reference signals, to facilitate simultaneous scheduling of first and second RAT signaling on a DSS carrier, utilizing quasi-co-located antenna ports for improved coordination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dynamic spectrum sharing is implemented between different radio access technologies, then spectral efficiency is improved, but signaling complexity increases
Solution Approach 1:
The patent segments the signaling process by introducing separate capability indication messages for first RAT and second RAT support. The network entity receives and processes these segmented capability indications separately, allowing structured handling of multi-RAT scheduling capabilities without overwhelming signaling complexity.
Solution Approach 2:
The patent implements preliminary action by having UEs transmit capability indications in advance before actual DSS carrier scheduling occurs. The network entity stores these capability profiles and uses them to determine appropriate scheduling strategies, preparing the signaling framework beforehand to reduce real-time complexity.
2Speed
If simultaneous scheduling of first RAT and second RAT signaling on DSS carrier is enabled, then data transfer speed is improved, but latency increases
Solution Approach 1:
The patent applies dynamics by enabling the network entity to flexibly switch between different scheduling modes based on UE capability indications. The system dynamically adjusts whether to schedule first RAT signaling, second RAT signaling, or both simultaneously on DSS carriers, optimizing the balance between data transfer speed and latency according to real-time network conditions and UE capabilities.
Data Source
AI summary
Disclosed are techniques for wireless communication. In an aspect, a UE transmits a DSS capability indication to a network entity (e.g., base station), which determines scheduling information for resources of a DSS carrier based on the DSS capability indication. In another aspect, a BS transmits RAT-specific (e.g., LTE-specific) information associated with a DL RS (e.g., LTE CRS) to a UE, which processes the DL RS on a DSS carrier based at least in part on the RAT-specific information.