Interactive Data Flow QoS Scheduling for Cloud Gaming Congestion
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Solution Overview
Problem
Cloud gaming and similar scenarios face congestion and freeze issues during periodic transfer of media streams due to insufficient scheduling of interactive service data flows, which affect the quality of service (QoS).
Innovation Solution
A communication method involving a policy control function (PCF) entity, session management function (SMF) entity, and radio access network (RAN) device to efficiently schedule interactive service data flows based on periodicity and flow direction information, generating and configuring QoS parameters to prevent congestion and freeze.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If periodic transfer of media streams is implemented in cloud gaming, then service delivery is enabled, but congestion and freeze occur during transfer
Solution Approach 1:
The patent applies preliminary action by establishing QoS rules and resource reservations in advance before the periodic media stream transfer begins. The PCF entity configures PCC rules with QoS parameters that pre-allocate network resources for the expected periodic traffic pattern, preventing congestion before it occurs rather than reacting to it
Solution Approach 2:
The patent addresses periodic action by configuring QoS parameters that match the periodic nature of cloud gaming media streams. The system sets up scheduled resource allocations and transmission time intervals that align with the periodic transfer requirements, ensuring consistent quality throughout the transfer cycle
2Reliability
If QoS parameters are configured for interactive service data flow, then transfer quality is improved, but system complexity increases
Solution Approach 1:
The patent applies universality by creating a multi-functional QoS configuration system where the PCF entity handles multiple functions: receiving service flow information, determining QoS parameters, generating PCC rules, and interacting with multiple network entities (SMF, UPF, RAN). This centralized multi-functional approach consolidates complexity into a single coordinating entity rather than distributing it across multiple specialized components
Data Source
AI summary
A method, an apparatus, a computer-readable medium, and an electronic device for communication are provided. The communication method includes: receiving a request message transmitted by an application function (AF) entity, the request message including a service characteristic of an interactive service data flow, the service characteristic of the interactive service data flow including periodicity information and flow direction information; generating a policy and charging control (PCC) rule based on the request message, the PCC rule including a quality of service (QoS) parameter corresponding to the service characteristic of the interactive service data flow; and transmitting, to a session management function (SMF) entity, the PCC rule upon which a QoS configuration file is transmitted from the SMF entity to a radio access network (RAN) side, the QoS configuration file comprising a QoS flow for the interactive service data flow.