Admission Control for Real-Time Data Traffic Using Deadline and Packet State
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Solution Overview
Problem
Existing admission control methods for data traffic in mobile networks determine admission based solely on throughput, making it difficult to precisely meet Service Level Agreements (SLAs) for real-time data traffic with varying quality requirements.
Innovation Solution
A communication device and system that determine whether to admit new data traffic by considering the transmission state of multiple data packets, including their deadline, and transmit instruction information to the base station for scheduling, allowing for more precise SLA satisfaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If admission control is performed by comparing throughputs only, then the admission control process is simple, but it is difficult to precisely determine whether the SLA regarding each real-time data traffic is satisfied
Solution Approach 1:
The patent changes the parameters used in admission control from only throughput comparison to multiple parameters including transmission deadline, packet transmission state, and SLA requirements. This allows precise determination of SLA satisfaction by evaluating whether packets can be transmitted within their deadlines while considering current buffer states and network conditions.
Solution Approach 2:
The patent adds temporal dimension (transmission deadline) and state dimension (packet transmission state) to the traditional throughput-based admission control. By considering the transmission deadline of each packet and the current transmission state of packets in the buffer, the system evaluates admission from multiple dimensions rather than solely based on throughput metrics.
2Reliability
If multiple parameters including transmission deadline are considered for admission control, then SLA satisfaction can be precisely determined, but the admission control process becomes more complex
Solution Approach 1:
The patent performs preliminary evaluation of admission feasibility by checking transmission deadlines and packet states before actual admission. The system pre-calculates whether admitting new traffic would cause existing packets to miss their deadlines, and makes admission decisions based on this preliminary analysis, ensuring SLA reliability without requiring complex real-time reevaluation.
Solution Approach 2:
The patent implements feedback mechanisms where the admission control unit continuously monitors the transmission state of packets in the buffer and adjusts admission decisions based on this feedback. By feeding back information about packet deadlines, buffer occupancy, and transmission progress, the system maintains reliable SLA guarantees through dynamic adaptation rather than static complex rules.
Data Source
AI summary
There is provided a communication device capable of determining whether admission of new data traffic is allowed or rejected not by comparing throughputs only, but by considering other parameters when the data traffic is admitted. A communication device (10) according to the present invention includes a determination unit (11) that determines whether to admit a flow regarding a new radio terminal (30), the flow being to be transmitted between a radio terminal (30) and a base station (20) and having a transmission deadline, depending on a transmission state of a plurality of data packets included in the flow, and a communication unit (12) that transmits, to the base station (20), instruction information indicating whether to admit the flow regarding the new radio terminal (30).