Bandwidth Part Timer Configuration for 5G UE Power Optimization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, particularly in 5G networks, the management of bandwidth parts (BWP) and Semi-Persistent Scheduling (SPS) intervals poses challenges in optimizing UE power consumption and data throughput, as existing methods lack efficient mechanisms to handle BWP inactivity timers and SPS configurations, leading to potential increased power consumption and signaling overhead.
Innovation Solution
Configuring User Equipment (UE) with a bandwidth part timer, where the UE is instructed not to use the timer if its length is shorter than the SPS interval for SPS resources, and implementing separate timers for different BWPs to manage BWP switching and power conservation effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a bandwidth part timer is configured for the UE, then BWP switching can be managed and power consumption optimized, but signaling overhead increases and system complexity increases
Solution Approach 1:
The patent extracts the bandwidth part timer configuration from the general BWP configuration and handles it separately. The network node determines whether to configure the BWP timer based on the relationship between timer length and SPS interval, extracting this decision logic to reduce unnecessary signaling when SPS is configured.
Solution Approach 2:
The patent implements dynamic configuration of the bandwidth part timer based on operational conditions. The timer is configured or released dynamically depending on whether SPS is active and the relationship between timer length and SPS interval, allowing the system to adapt to changing conditions and minimize signaling overhead.
2Duration of action of stationary object
If a bandwidth part timer is configured for the UE, then BWP switching can be managed, but device complexity increases
Solution Approach 1:
The patent applies preliminary action by having the network node determine in advance whether to configure the BWP timer based on the relationship between timer length and SPS interval. This preliminary determination prevents unnecessary timer configuration and simplifies the overall system by avoiding complex interactions between timer and SPS mechanisms.
3Use of energy by moving object
If the bandwidth part timer length is shorter than SPS interval, then power consumption is reduced, but data throughput may be affected
Solution Approach 1:
The patent implements dynamic adjustment of the BWP timer configuration based on the relationship between timer length and SPS interval. When SPS is configured and the timer length would be shorter than the SPS interval, the system dynamically decides to release the timer configuration, thereby maintaining optimal data throughput while still managing power consumption effectively through SPS mechanisms.
Data Source
AI summary
A method and apparatus are disclosed from the perspective of a network node. In one embodiment, the method includes configuring a UE (User Equipment) with a bandwidth part. The method further includes configuring the UE to use a bandwidth part timer for the bandwidth part. The method also includes configuring the UE with SPS resource on the bandwidth part. In addition, the method includes configuring the UE not to use the bandwidth part timer if length of the bandwidth part timer is shorter than SPS (Semi-Persistent Scheduling) interval for the SPS resource.