Small Data Detection in Mobile Communication Systems
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Solution Overview
Problem
Mobile communication systems face inefficiencies in transmitting small-sized data, leading to increased network load and battery degradation due to excessive control messages, as they treat all IP data uniformly without considering data characteristics.
Innovation Solution
Implementing a method and device that use packet filters to identify and classify small-sized data, allowing it to be sent via control messages instead of establishing a data bearer, thereby reducing network resource consumption and overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If connection establishment and data bearer configuration are performed for every small data transmission, then data transmission reliability is improved, but network load and control message overhead increase significantly
Solution Approach 1:
The patent segments data transmission into two distinct paths: small data transmitted via control messages (RRC/NAS) and large data transmitted via data bearers. This segmentation allows the system to apply different transmission mechanisms based on data characteristics, reducing the overhead for small data while maintaining reliability for larger transmissions.
Solution Approach 2:
The patent introduces a data size threshold parameter that determines the transmission path. When data size is below the threshold, control message transmission is used; when above, data bearer transmission is used. This parameter-based differentiation resolves the contradiction by adapting the transmission mechanism to the specific data characteristics.
2Reliability
If connection establishment procedure is performed for each small data transmission, then data transmission completeness is improved, but battery performance in user equipments deteriorates
Solution Approach 1:
The patent segments the transmission procedure into control message-based small data transmission and connection-based large data transmission. By using control messages for small data, the UE avoids the energy-intensive connection establishment and bearer configuration procedures, thereby improving battery performance while still ensuring complete transmission of small data packets.
Solution Approach 2:
For small data transmissions, the patent applies partial action by using only the essential control message exchange without performing the full connection establishment and bearer configuration procedures. This reduces the energy consumption associated with complete connection setup while still achieving the goal of reliable small data transmission.
3Device complexity
If uniform transmission scheme is used for all IP data regardless of characteristics, then system simplicity is maintained, but transmission efficiency for small data decreases
Solution Approach 1:
The patent uses data size as a key parameter to determine the transmission scheme. By comparing the data size against a threshold, the system automatically selects between control message transmission and data bearer transmission. This parameter-based approach maintains system simplicity through automated decision-making while significantly improving transmission efficiency for small data.
Solution Approach 2:
The patent applies different transmission qualities and mechanisms to different data types based on their characteristics. Small data receives the optimized control message transmission path, while large data uses the traditional data bearer path. This local differentiation of transmission quality based on data characteristics resolves the contradiction between system simplicity and transmission efficiency.
Data Source
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AI summary
Provided are a method and device that identify characteristics of data to be sent by a user equipment and send small-sized data via a control message. The data transmission method for the user equipment may include: generating IP data; determining whether the IP data corresponds to small data that has a size less than or equal to a preset reference size or matches identification information of a preset service; and transmitting the IP data through a connection management (CM) layer to the network by use of a control message.