Sidelink Bandwidth Part Timer Management for Resource Allocation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current mobile communication networks face challenges in efficiently managing and optimizing communication protocols across diverse wireless devices and base stations, particularly in supporting multiple technologies and releases, which affects traffic management and resource allocation.
Innovation Solution
The implementation of advanced New Radio (NR) user plane and control plane protocol stacks, along with bandwidth adaptation and carrier aggregation techniques, enables flexible configuration and optimization of communication protocols to accommodate various wireless devices and base stations, improving traffic management and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If bandwidth part timer management is implemented for sidelink communication, then resource allocation efficiency is improved, but protocol complexity increases
Solution Approach 1:
The patent segments the bandwidth part management by introducing separate timers (bwp-InactivityTimer and bwp-UplinkInactivityTimer) for different communication directions and purposes. This segmentation allows independent control of downlink and uplink bandwidth parts, enabling fine-grained resource allocation without requiring complete protocol reconfiguration, thus improving efficiency while managing complexity through modular timer management.
2Adaptability or versatility
If multiple bandwidth parts are configured for sidelink, then adaptability to different communication scenarios is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic bandwidth part switching for sidelink communication by configuring multiple bandwidth parts with different parameters (subcarrier spacing, cyclic prefix length, bandwidth) and using timers to automatically switch between them based on communication activity. This dynamic configuration allows the system to adapt to varying traffic conditions and communication scenarios without manual intervention, achieving versatility while keeping device complexity manageable through automated timer-based control.
Data Source
AI summary
A wireless device receives, from a base station, one or more radio resource control messages indicating: a first value of a first bandwidth part (BWP) inactivity timer for a first cell, and a second value of a second BWP inactivity timer for a second cell. A downlink control information (DCI) is received, via the first cell, indicating a set of sidelink resources for sidelink transmission via the second cell. In response to the DCI, the first BWP inactivity timer is restarted based on the first value. A transport block, of the sidelink transmission, is transmitted via a sidelink resource of the set of sidelink resources. In response to transmitting via the sidelink resource, the second BWP inactivity timer is restarted based on the second value.