Communications Network Node Data Rate Preservation
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Solution Overview
Problem
In mobile network architectures, the temporary shutdown of RRH devices to conserve energy increases RTT, affecting data transmission rates and customer experience, as operators struggle to differentiate between intentional standby and network congestion, leading to unnecessary reduction in data transmission rates.
Innovation Solution
A method where a node in the communications network determines the inability of an access device to transmit data, processes the data by storing or deleting it, and sends a notification message to the transmitting terminal indicating non-congestion, allowing the terminal to maintain data transmission rates without acknowledging receipt from the destination terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the access device is temporarily shut down or switched to standby to conserve energy, then energy consumption is reduced, but RTT increases and data transmission rate is affected
Solution Approach 1:
The system performs preliminary actions by storing data packets at the network node before the access device is shut down. This allows the data to be ready for immediate transmission upon device activation, eliminating the need to wait for the full RTT cycle during standby periods.
Solution Approach 2:
A network node acts as an intermediary between the transmitting terminal and the access device. This intermediary stores data packets temporarily and manages the coordination between data transmission and access device operational states, decoupling the transmission timing from device availability.
2Use of energy by moving object
If the access device is temporarily shut down or switched to standby to conserve energy, then energy consumption is reduced, but data transmission rate is reduced
Solution Approach 1:
Data packets are prepared and stored in advance at the network node before the access device enters standby mode. This preliminary action ensures that when the device becomes active again, transmission can resume immediately at full rate without waiting for reconnection or retransmission protocols.
Solution Approach 2:
The network node serves as an intermediary that buffers data packets, decoupling the transmission rate from the access device's operational state. This allows the transmitting terminal to maintain high transmission rates knowing the intermediary will handle the timing coordination with the access device.
3Use of energy by moving object
If data are temporarily stored at the network node to adapt operating periods, then energy consumption is optimized, but observed RTT increases and transmission rate estimation is negatively impacted
Solution Approach 1:
The system implements feedback by sending a notification message from the network node to the transmitting terminal, explicitly indicating that delayed acknowledgments are due to access device standby operations rather than network congestion. This feedback prevents the terminal from incorrectly reducing its transmission rate based on false congestion signals.
Solution Approach 2:
The network node acts as an intermediary that provides explanatory feedback to the transmitting terminal about the true cause of transmission delays. This intermediary function clarifies the distinction between congestion-related delays and scheduled standby-related delays, preserving accurate transmission rate measurements.
Data Source
AI summary
A method for preserving a transmission rate of second data transmitted by a first terminal destined for a second terminal attached to at least one access device in a communications network. A communications network node capable of routing the second data identifies an inability of the at least one access device to send first data received from the first terminal to the second terminal, processes the first data received from the first terminal during the identified period of inability of the at least one access device, and transmits to the first terminal a notification indicating that the first stored data is not subject to congestion.