Uplink Small Data Bearer Handling via Control Plane Pathways
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently handling small data transmissions, particularly in scenarios where traditional uplink data procedures are inefficient or not optimized, leading to suboptimal performance and resource utilization.
Innovation Solution
The implementation of specific mechanisms for uplink data transmission procedures, including the use of control plane early data transmission and default bearer pathways, optimized for small data packets, which allow for efficient handling and resource allocation in wireless devices and base stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional uplink data procedures are used for small data transmissions, then the transmission can be handled through standard pathways, but the efficiency and resource utilization are suboptimal
Solution Approach 1:
The patent segments small data transmissions from traditional uplink procedures by creating a separate control plane early data transmission pathway. This segmentation allows small data packets to be handled independently through optimized control plane signaling (e.g., RRC messages) rather than following the complete traditional user plane procedure, thereby reducing latency and improving transmission efficiency for small data while leaving larger data transmissions to use standard pathways.
2Productivity
If control plane pathways are used for small data packets, then latency is reduced and efficiency is improved, but system complexity increases
Solution Approach 1:
The patent implements dynamic pathway selection where the system can adaptively choose between control plane early data transmission and traditional user plane transmission based on data size, service requirements, and network conditions. This dynamic approach allows the system to optimize for small data transmissions using control plane pathways while maintaining compatibility with traditional procedures for other scenarios, thereby managing complexity through conditional logic rather than permanent dual-pathway architecture.
3Adaptability or versatility
If traditional uplink procedures are used, then resource allocation follows standard protocols, but resource utilization is suboptimal for small data
Solution Approach 1:
The patent changes key parameters of the transmission procedure for small data by using control plane signaling (RRC messages) instead of traditional user plane data channels. This parameter change includes transmitting small data packets within control plane message structures, using different scheduling mechanisms, and applying optimized resource allocation specific to control plane resources, thereby improving resource utilization efficiency for small data transmissions while maintaining standard resource allocation for traditional pathways.
Data Source
AI summary
A second base station (BS2) comprises one or more processors and memory storing instructions that, when executed by the one or more processors, cause BS2 to: transmit, to a wireless device (WD), while BS2 has a WD context of the WD, a radio resource control release message indicating to suspend one or more radio bearers (RBs) associated with the WD context; transmit, to the WD, a bearer configuration indicating that a first RB of the one or more RBs is configured for a small data transmission procedure; receive, from a first base station (BS1), a first message requesting to retrieve the WD context of the WD; send, to BS1, a second message indicating: not to relocate the WD context of the WD; the first RB configured for the SDT procedure; and a data forwarding address for uplink data associated with the first RB.