Wireless Data Bearer Selection for Delay-Tolerant Traffic
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Solution Overview
Problem
Existing wireless networks face inefficiencies in utilizing radio resources and varying network costs per transmitted data bit due to factors like radio conditions, bandwidth availability, and traffic load, leading to unequal costs for transmitting data regardless of its importance.
Innovation Solution
Implement a network assisting node that detects potential data classes based on tolerable delays and cost-related parameters, reporting availability of dedicated data bearers to optimize data transmission on radio bearers, separating data traffic based on delay-sensitivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data is transmitted using existing radio bearers without differentiation, then transmission can occur regardless of delay sensitivity, but network cost per transmitted bit varies unfairly and radio resources are not optimized
Solution Approach 1:
The patent segments data traffic into different classes based on delay sensitivity, creating separate data bearers for delay-sensitive and non-delay-sensitive data. This segmentation allows the network to apply different transmission strategies and cost structures to different data types, optimizing overall network capacity utilization while reducing unnecessary costs for non-critical data transmissions.
Solution Approach 2:
The patent applies local quality by assigning different quality characteristics to different data bearers. The first data bearer is configured with parameters suitable for delay-sensitive traffic, while the second data bearer is optimized for non-delay-sensitive traffic. This localized quality differentiation ensures that radio resources are allocated efficiently according to the specific requirements of each data class.
2Reliability
If higher transmission power is used to ensure data delivery, then reliability of data transmission improves, but interference in the cell increases and network cost rises
Solution Approach 1:
The patent changes transmission parameters based on data class and radio conditions. For non-delay-sensitive data transmitted on the second data bearer, the network can use more conservative transmission parameters that reduce power consumption and interference, since these data transmissions can tolerate longer delivery times. This parameter adaptation maintains reliability for critical data while reducing harmful effects for non-critical data.
3Reliability
If more coding bits are used to ensure correct decoding, then data transmission reliability improves, but network cost per transmitted bit increases
Solution Approach 1:
The patent adjusts coding parameters dynamically based on the data bearer and radio conditions. For the second data bearer carrying non-delay-sensitive data, the network can employ less aggressive coding schemes that require fewer coding bits, thereby reducing network cost per transmitted bit while maintaining adequate decoding correctness since these transmissions are not time-critical.
4Productivity
If radio resources are allocated without considering data class, then all data can be transmitted, but radio resource utilization efficiency decreases
Solution Approach 1:
The patent segments radio resources into distinct data bearers based on data class requirements. This segmentation simplifies resource management by creating clear, predefined allocation rules for different data types, reducing the complexity of real-time resource scheduling decisions while improving overall utilization efficiency through targeted resource assignment.
Solution Approach 2:
The patent performs preliminary action by pre-configuring multiple data bearers with different characteristics before data transmission begins. The network node is set up with predetermined bearers for different data classes, eliminating the need for complex real-time resource allocation decisions and simplifying the management of radio resources while maintaining high utilization efficiency.
Data Source
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AI summary
A network assistance node (300), a wireless device (302), a network node (304), an opposite node (306) and methods therein, for handling communication of data between the wireless device and the opposite node over a radio bearer in a cell. When detecting (3:2) that a potential data class is requested which tolerates a certain delay for delivering the data, the network assistance node obtains (3:5) from the network node availability of a potential data bearer dedicated for the potential data class, which availability is dependent on whether a cost related parameter associated with the wireless device fulfils a threshold condition. The network assistance node then reports (3.6) availability of the potential data class to the wireless device and the opposite node, indicating that the potential data bearer is available for data of the potential data class.