Physical Data Channel Selection Based on Application Traffic Patterns
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Solution Overview
Problem
Cellular communication systems often operate inefficiently due to not considering the different application characteristics of various applications, leading to suboptimal resource usage and battery consumption.
Innovation Solution
The system selects physical channels for data communication based on application traffic patterns, providing multiple channels with distinct characteristics suited for different types of traffic patterns, such as low data rate and high data rate applications, to improve resource usage and battery efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single physical channel is used for all data communications, then device complexity is reduced and ease of operation is improved, but system resource usage efficiency deteriorates and battery consumption increases
Solution Approach 1:
The patent segments the single physical channel into multiple physical channels (e.g., PUSCH for uplink, PDSCH for downlink, and potentially multiple instances thereof) with different characteristics. Each channel is optimized for specific traffic patterns, allowing the system to match channels to applications based on their requirements, thereby improving resource usage efficiency without requiring complex device-side selection mechanisms.
Solution Approach 2:
Different physical channels are assigned different local qualities or characteristics (e.g., different modulation schemes, coding rates, resource allocation patterns) that are optimized for specific application types. This allows periodic traffic to use channels optimized for periodic transmission while bursty traffic uses channels optimized for variable rate transmission, improving overall system efficiency.
2Adaptability or versatility
If multiple physical channels with different characteristics are provided, then adaptability to different application traffic patterns is improved, but device complexity increases
Solution Approach 1:
The network side (base station) obtains information about application traffic patterns through feedback mechanisms and uses this information to make intelligent channel selection decisions. This feedback loop allows the system to adapt to different application requirements while keeping the device complexity low, as the selection intelligence is centralized at the network side rather than distributed across devices.
Solution Approach 2:
The network side acts as an intermediary that manages the complexity of multiple physical channels. By centralizing channel selection and management at the network side, the patent eliminates the need for complex device-side channel selection mechanisms while still providing adaptability to different application traffic patterns through network-controlled channel assignment.
3Productivity
If channel selection is based on application traffic pattern analysis, then communication efficiency is improved, but loss of time for traffic pattern identification occurs
Solution Approach 1:
The system performs preliminary classification of applications into traffic pattern categories (e.g., periodic, bursty, constant bit rate) during application registration or connection setup. This preliminary action allows the network to pre-configure appropriate physical channels for each application type, avoiding the need for real-time traffic pattern analysis and reducing time loss while maintaining communication efficiency.
Data Source
AI summary
Selecting a physical channel for cellular communication based on application traffic pattern. A radio bearer may be established between a wireless device and a base station. A physical downlink channel may be selected for the radio bearer. The physical downlink channel may be selected based on an application traffic pattern of an application associated with the radio bearer. In some instances, a physical uplink channel may also be selected based on an application traffic pattern of an application associated with the radio bearer.