Small Data Indicator in RRC Connection Establishment
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Solution Overview
Problem
Current methods for small data transmission in wireless networks, such as those used for Machine-Type Communication (MTC) and 'keep-alive' messages, are inefficient due to the inability to differentiate small data transmissions from higher priority data, leading to unnecessary resource usage and inability to treat small data as low priority.
Innovation Solution
Incorporating a small-data indicator in the wireless connection establishment procedure to differentiate small data transmissions, using specific RRC establishment causes like 'Small Data' or 'High/Low Priority Small Data' to indicate data below a threshold, allowing the network to allocate resources appropriately and treat small data as low priority.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a generic RRC connection establishment procedure is used for all data transmissions, then the procedure is simple and universally applicable, but small data transmissions cannot be differentiated from high priority data, leading to inefficient resource allocation
Solution Approach 1:
The RRC establishment cause is segmented into specific categories including 'small data' cause value, allowing the system to differentiate small data transmissions from other data types. This segmentation enables targeted resource allocation and measurement configuration based on data characteristics.
Solution Approach 2:
The invention changes the parameter of RRC establishment cause by introducing a specific 'small data' cause value and associated parameters such as data volume thresholds. This parameter change allows the network to identify and handle small data transmissions differently, improving resource allocation efficiency.
2Reliability
If measurement configurations are applied to all RRC connections, then connection reliability is maintained, but radio resources are wasted on small data transmissions that do not require measurements
Solution Approach 1:
The invention applies local quality by making measurement configuration conditional rather than universal. Based on the RRC establishment cause and data characteristics, measurement configuration is applied only where necessary (for high priority data), while small data transmissions skip this step, optimizing resource usage.
Solution Approach 2:
The invention uses partial action by applying measurement configuration only to a subset of connections that require it. Small data transmissions receive partial treatment (connection establishment without full measurement configuration), reducing resource consumption while maintaining adequate connection reliability.
3Productivity
If small data transmissions are treated with the same priority as high priority data, then all data receives adequate network resources, but small data transmissions consume unnecessary network resources
Solution Approach 1:
The invention changes the priority parameter for small data transmissions by introducing specific QoS parameters and handling procedures associated with 'small data' RRC establishment cause. This allows the network to allocate resources appropriately based on data characteristics, improving overall resource utilization efficiency.
Data Source
AI summary
The invention provides for a wireless communications terminal (502), and related system and method, for wirelessly communicating with a network (504, 506). The terminal (502) is arranged to transmit, as part of a wireless connection establishment procedure for forming a wireless connection between the terminal (502) and the network (504, 506), wireless-connection establishment signalling (510) including a small-data indicator to indicate to the network (504) that transmission of an amount of data below a threshold value is required from the terminal (502) by way of the wireless connection to the network (504, 506).