BWP Switching Scheduling Avoids SSB Overlap
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Solution Overview
Problem
In 5G mobile communication systems, particularly with New Radio (NR) technology, the challenge lies in performing Bandwidth Part (BWP) switching without overlapping with Synchronization Signal Block (SSB) transmission, which is essential for stable measurement but complicated due to the absence of UL signals and DL signals during BWP switching.
Innovation Solution
A method for user equipment (UE) to schedule SSB reception during a first period and determine BWP switching based on a second period, ensuring that BWP switching starts before the SSB period, thereby avoiding overlap and ensuring stable measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If BWP switching is performed, then bandwidth adaptation and resource efficiency are improved, but measurement stability deteriorates due to overlap with SSB reception
Solution Approach 1:
The patent applies preliminary action by determining the time duration required for BWP switching in advance and using this information to prevent scheduling conflicts. The network side calculates the switching time and proactively avoids scheduling SSB reception during the BWP switching period, or schedules BWP switching to occur before SSB reception, thereby preventing measurement instability before it can occur.
2Productivity
If BWP switching is scheduled without considering SSB reception, then resource utilization is improved, but signal reception quality deteriorates due to overlap
Solution Approach 1:
The patent introduces an intermediary mechanism in the form of a determination module that acts as a mediator between the BWP switching scheduler and the SSB reception scheduler. This intermediary evaluates the timing relationship between BWP switching and SSB reception, and based on the time duration information, makes intelligent scheduling decisions to avoid conflicts, thereby maintaining both resource utilization and signal reception quality.
3Reliability
If BWP switching time duration is extended to ensure proper switching, then switching reliability is improved, but overlap with SSB reception increases
Solution Approach 1:
The patent applies dynamics by making the BWP switching schedule flexible and adaptive rather than fixed. The system dynamically adjusts the BWP switching timing based on the actual SSB reception schedule and the required switching time duration. This dynamic scheduling allows the system to accommodate variable switching times while avoiding conflicts with SSB reception, balancing switching reliability with time efficiency.
Data Source
AI summary
The present invention discloses a method of performing Bandwidth Part (BWP) switching by a user equipment (UE). The method comprises scheduling to receive a Synchronization Signal Block (SSB) during a first period; determining whether to perform the BWP switching based on the first period and a second period representing time duration for performing the BWP switching; and when the first period and the second period do not overlap, performing the BWP switching.