Dual Bearer Communication Control for Throughput and Complexity
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Solution Overview
Problem
Current communication systems face challenges in efficiently managing data bearers between cellular base stations and WLAN access points, particularly in ensuring reliable data delivery and minimizing unnecessary traffic during handovers, which affects communication throughput and capacity.
Innovation Solution
The system employs a dual data bearer architecture where one data bearer passes through a cellular base station exclusively and another through both the WLAN and cellular base station, enabling advanced communication control by transmitting status reports and allowing for parallel data transmission, thereby improving throughput and reducing unnecessary traffic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data is transmitted through both WLAN and cellular base station using dual data bearer architecture, then communication throughput is improved, but device complexity increases
Solution Approach 1:
The patent divides data transmission into two separate bearers: one for control signaling and one for user data. This segmentation allows the system to maintain complex dual-path transmission capabilities while simplifying the management of individual bearers, thereby improving throughput without proportionally increasing device complexity
Solution Approach 2:
The cellular base station serves multiple functions simultaneously: it acts as both a cellular communication node and a WLAN gateway. This multi-functionality allows the system to achieve improved throughput through dual-path transmission without requiring separate dedicated infrastructure, thus limiting the increase in device complexity
2Reliability
If status report transmission is implemented for data delivery acknowledgment, then data delivery reliability is improved, but communication overhead increases
Solution Approach 1:
The patent implements status report transmission selectively rather than continuously. Status reports are sent only when necessary to acknowledge data delivery, providing sufficient reliability feedback without generating excessive communication overhead from constant reporting
Solution Approach 2:
The system establishes a feedback mechanism where the user terminal sends status reports to the cellular base station to acknowledge data delivery. This feedback loop improves reliability by ensuring proper delivery confirmation while the on-demand nature of the feedback minimizes overhead
3Productivity
If parallel data transmission through multiple bearers is enabled, then communication capacity is improved, but traffic management complexity increases
Solution Approach 1:
The patent segments traffic management into distinct functions for each bearer type. The first bearer handles control signaling with simplified management, while the second bearer handles user data with optimized routing. This segmentation reduces overall traffic management complexity while maintaining high communication capacity through parallel transmission paths
Data Source
AI summary
A communication control system, user terminal, and processor for controlling a user terminal in which a user terminal controls communication by using a first data bearer and a second data bearer, where the first data bearer does not pass through a Wireless Local Area Network (WLAN), but passes through the cellular base station, and the second data bearer passes through the WLAN and the cellular base station. The cellular base station controls communication with the user terminal by using the first data bearer and the second data bearer. The user terminal receives information transmitted from the cellular base station, where the information is for the user terminal to transmit a status report indicating a delivery status regarding data received via the WLAN and data directly received from the cellular base station. The user terminal transmits the status report to the cellular base station on a basis of the information.