V2X UE On-Demand Network Configuration for Flexible Resource Allocation
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Solution Overview
Problem
Current NR V2X communication systems lack flexibility in resource allocation modes, with a straightforward correlation between coverage conditions and resource allocation modes, which limits advanced use cases and fails to optimize interference management and spectral efficiency.
Innovation Solution
Implementing an on-demand network configuration that allows a UE to operate simultaneously in network-controlled and autonomous modes based on signaling, enabling flexible resource allocation across different frequencies, resource pools, and service types, using RRC and DCI signaling for configuration and dynamic switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a straightforward correlation between coverage conditions and resource allocation modes is used, then system simplicity is maintained, but flexibility and adaptability are limited
Solution Approach 1:
The patent implements dynamic mode selection where UEs can switch between network-controlled mode and autonomous mode based on real-time network signaling (RRC and DCI). This dynamic mechanism allows the system to adapt resource allocation modes flexibly without requiring complex static configuration, resolving the contradiction between adaptability and complexity.
Solution Approach 2:
The patent changes the operational parameters of UEs by introducing network-controlled mode switching capability. Through RRC signaling and DCI formatting, the network can dynamically adjust the resource allocation mode parameter, enabling UEs to transition between different operational states. This parameter change approach provides flexibility while maintaining manageable system complexity through standardized signaling procedures.
2Loss of time
If UEs operate autonomously in coverage, then end-to-end latency is reduced, but interference management becomes more challenging
Solution Approach 1:
The patent applies different operational characteristics to different UEs based on local conditions and network configuration. Each UE can be individually configured to operate in autonomous mode or network-controlled mode through specific DCI formats and RRC signaling. This local quality approach allows latency-critical services to benefit from autonomous operation while maintaining network control where interference management is prioritized, resolving the contradiction between reduced latency and interference control.
3Object-affected harmful factors
If network-controlled mode is used for all UEs, then interference management is optimized, but spectral efficiency and latency performance deteriorate
Solution Approach 1:
The patent segments the V2X communication system into different operational groups based on service requirements and network conditions. Through DCI format indications and RRC configuration, the network can designate specific UEs or resource pools to operate in autonomous mode while maintaining network-controlled mode for others. This segmentation allows the system to optimize interference management for certain UEs while enabling spectral efficiency improvements for others, resolving the contradiction between interference control and productivity.
Data Source
AI summary
Various examples and schemes pertaining to on-demand network configuration of vehicle-to-everything (V2X) user equipment (UE) autonomy in New Radio (NR) mobile communications are described. An apparatus implemented in a first user equipment (UE) receives a signaling from a network node of a wireless network. Based on the signaling, the apparatus operates simultaneously in a network-controlled mode and an autonomous mode such that: (a) the first UE operates in the network-controlled mode with respect to resource allocation on a first sidelink with a second UE, and (b) the first UE operates in the autonomous mode with respect to resource allocation on a second sidelink with the second UE or a third UE.