Wireless Device Data Bearer Selection for Network Cost Reduction
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Solution Overview
Problem
In wireless networks, the efficient utilization of radio resources is hindered by varying network costs per transmitted data bit, which are influenced by radio conditions, traffic load, and bandwidth availability, leading to higher costs for transmitting less important data despite the need for timely delivery.
Innovation Solution
A method where wireless devices and network nodes utilize a 'potential data bearer' associated with low network cost and tolerant delay, determining availability based on system information, and transitioning between idle and connected modes to optimize data communication, thereby reducing network costs and improving capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If data is transmitted using conventional bearers to ensure timely delivery, then data delivery speed is improved, but network cost increases
Solution Approach 1:
The patent segments data into different priority levels (delay-sensitive and delay-tolerant) and routes them through different bearers accordingly. Delay-sensitive data uses conventional bearers for fast delivery, while delay-tolerant data uses potential data bearers for cost-efficient transmission, thus resolving the contradiction between speed and network cost.
Solution Approach 2:
The patent applies different transmission qualities to different data bearers. The potential data bearer is configured with specific parameters (lower priority, relaxed QoS) suitable for non-urgent data, while conventional bearers maintain higher quality for time-critical data, optimizing the trade-off between cost and performance locally for each data type.
2Reliability
If wireless devices frequently transition to connected mode to ensure data communication, then data communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent dynamically adjusts the device's operational state based on data characteristics. For delay-tolerant data, the device remains in idle mode and only transitions to connected mode when necessary, creating a dynamic balance between communication reliability and power consumption based on actual needs.
Solution Approach 2:
The network provides system information that copies or indicates the availability status of potential data bearers, allowing devices to make informed decisions about mode transitions without continuously monitoring bearer status, thus reducing unnecessary wake-ups and power consumption.
3Measurement precision
If system information is frequently updated to reflect data bearer availability, then data bearer availability accuracy is improved, but signaling overhead increases
Solution Approach 1:
The network updates system information about potential data bearer availability periodically or event-driven rather than continuously, providing accurate availability information at appropriate intervals while minimizing unnecessary signaling transmissions, thus balancing accuracy with overhead reduction.
Data Source
Figure 1~2B
Figure 3~4A
Figure 4B~4C
AI summary
A wireless device (100), a network node (102), a core node (104) and methods for handling radio communication of data between the wireless device and the network node in a wireless network. The network node (102) transmits (5:3) system information related to availability of a potential data bearer dedicated for data tolerating a certain delivery delay, which is received by the wireless device in idle or inactive mode. The wireless device determines (5:4) whether the potential data bearer is available, based on the system information. When available, the wireless device initiates (5:7A) a transition from idle/inactive mode to connected mode and communicates the data over the potential data bearer. When the potential data bearer is unavailable, the wireless device stays (5:7B) in the idle/inactive mode. When the data is downlink data, the core node sends a paging message indicating a potential data class.