Predictive QoS Resource Allocation for Wireless Session Latency
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Solution Overview
Problem
Current wireless communication systems face delays in establishing Quality of Service (QoS) resources for Push-to-Talk (PTT) and group communication services due to the need for access terminals to request and wait for resource allocation, which increases latency in delay-sensitive applications.
Innovation Solution
Implementing predictive QoS resource allocation in wireless communication systems, where the Radio Access Network (RAN) proactively allocates QoS resources based on communication requests from application servers, such as QChat servers, before the access terminal initiates a connection, using Differentiated Services Code Point (DSCP) values and QoS profiles to identify and reserve necessary resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the access terminal requests QoS resources after initiating a connection, then the system ensures QoS resources are allocated, but the session establishment latency increases
Solution Approach 1:
The system performs QoS resource allocation in advance before the access terminal initiates a connection request. When the application server sends a communication request to the access terminal, the RAN receives this request and proactively allocates the necessary QoS resources (such as dedicated physical data channels) before the terminal needs them, eliminating the latency that would otherwise occur during the connection establishment phase.
2Speed
If the RAN proactively allocates QoS resources before connection request, then the session establishment speed improves, but the system complexity increases
Solution Approach 1:
The application server acts as an intermediary that provides information about upcoming communication requests to the RAN. This intermediary role allows the RAN to anticipate resource needs without requiring complex monitoring and prediction algorithms, as the application server already has knowledge of when communications will be initiated based on higher-layer protocols and service logic.
Data Source
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AI summary
Systems and methods for predictive QoS resource allocation in a wireless communication system are disclosed. An access network can detect a communication directed to an access terminal requiring QoS resources, send a page to an access terminal and allocate the QoS resources prior to receipt of the connection request from the access terminal.