Partial Bandwidth Deactivation Timer Mechanism for Wireless Resource Management
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Solution Overview
Problem
The working mechanism of the Band Width Part (BWP) inactivity timer in wireless communication systems, particularly in Next Generation Radio (NR) systems, is not specified, leading to issues such as disrupted uplink and downlink transmissions and resource mismanagement.
Innovation Solution
A method is introduced to process the BWP inactivity timer by receiving instructions from the network side to start, restart, or expire the timer, ensuring correct transitions between active, default, and initial BWPs for uplink and downlink transmissions, thereby clarifying the timer's operation and maintaining proper resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple BWPs are configured for the terminal to enable flexible bandwidth allocation, then the adaptability of the system is improved, but the device complexity increases due to the need to manage multiple active and inactive BWPs
Solution Approach 1:
The total cell bandwidth is segmented into multiple Band Width Parts (BWPs), each with specific configurations for uplink and downlink. The terminal is configured with multiple BWPs but only activates one pair at a time, dividing the large bandwidth management task into smaller, manageable segments that can be independently controlled and switched between based on traffic requirements.
2Device complexity
If the BWP inactivity timer mechanism is not specified, then the system maintains simplicity, but the reliability of transmission deteriorates due to unclear timer operations causing disrupted transmissions and resource mismanagement
Solution Approach 1:
The BWP inactivity timer mechanism provides feedback control for BWP management. When uplink transmission activity is detected, the timer is restarted, preventing premature BWP deactivation. When no transmission occurs within the timer period, the system feedback triggers a BWP switch to the initial BWP, ensuring reliable resource management while maintaining clear, specifiable operations.
3Productivity
If the terminal uses the entire cell bandwidth, then the productivity is improved, but the energy consumption increases due to the terminal's limited receiving capability in NR systems
Solution Approach 1:
Instead of requiring the terminal to receive and process the entire 400 MHz cell bandwidth simultaneously, the system applies partial action by configuring multiple BWPs and activating only the necessary portion at any given time. The terminal receives instructions to activate specific uplink and downlink BWP pairs, consuming energy only for the activated bandwidth portions while maintaining the capability to switch to other BWPs when needed.
Data Source
AI summary
The present application discloses a processing method, device, terminal and apparatus for partial bandwidth deactivation timer, including: receiving an instruction related to the uplink transmission sent by the network side; starting or restarting the partial bandwidth deactivation timer according to the received instruction. The present application clarifies the specific working mechanism of the partial bandwidth deactivation timer, and the terminal and the base station can perform signaling and data transmission on the correct resources, to avoid signaling and data transmission errors and resource waste.