Traffic-Pattern-Aware Handover for QoS-Stable Wireless Links
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Solution Overview
Problem
Handover procedures in wireless communication systems disrupt uplink and/or downlink communications, affecting the quality of service and quality of experience for users.
Innovation Solution
A wireless transmit/receive unit (WTRU) determines a traffic pattern associated with uplink or downlink traffic and sends an indication to a network device, which provides a message for performing a handover based on the traffic pattern, including timing, priority, or periodicity of application data transmission/reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If handover procedures are performed in traditional wireless communication systems, then mobility and network switching are enabled, but uplink and downlink communications are disrupted affecting quality of service and quality of experience
Solution Approach 1:
The WTRU performs traffic pattern detection and sends indications to the network device before the handover is executed. The network device uses this information to determine and communicate handover timing and conditions in advance, allowing the system to prepare for the handover before it occurs, thereby minimizing disruption to ongoing communications.
Solution Approach 2:
The handover procedure is made dynamic by adapting it to the detected traffic patterns. The network device determines handover timing and conditions based on the periodicity, timing, and priority of application data, allowing the handover to be scheduled at optimal moments that minimize impact on communication quality while maintaining mobility.
2Productivity
If handover is performed without considering traffic patterns, then network switching is achieved, but communication disruption increases
Solution Approach 1:
Traffic pattern detection and handover planning are performed in advance before the actual handover execution. The WTRU detects traffic patterns and sends indications to the network device, which then determines appropriate handover timing and communicates this to the WTRU, allowing the system to execute handover at optimal moments that minimize communication disruption.
Solution Approach 2:
The handover timing and conditions are dynamically adjusted based on traffic pattern parameters such as periodicity, timing offsets, and data priority. By changing these parameters according to detected traffic patterns, the system achieves efficient network switching while minimizing the time lost to communication disruptions.
Data Source
AI summary
Described herein are systems, methods and instrumentalities associated with performing a handover. A wireless transmit/receive unit (WTRU) as described herein may determine a traffic pattern associated with uplink traffic or downlink traffic. The traffic pattern may indicate at least one of a timing or a priority of the uplink traffic or downlink traffic. The WTRU may send an indication of the traffic pattern to a network device and receive a message from the network device that may indicate a manner for performing a handover. The WTRU may perform the handover in the manner indicated by the message received from the network device, wherein the handover may be performed in coordination with the timing or priority of the uplink traffic or downlink traffic.