Data Transmission via MME Without Access Network Bearer
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in transmitting data without a pre-established Packet Data Network (PDN) connection, leading to unnecessary signaling overhead and resource consumption.
Innovation Solution
A method where user equipment sends a PDN Connectivity Request message and data packet to the Mobility Management Entity (MME), which establishes a PDN connection only at the core network side, allowing data transmission without initially establishing a PDN connection at the access network side.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a PDN connection is established before data transmission in prior art, then data can be transmitted over the PDN connection, but signaling overhead and network resource consumption increase
Solution Approach 1:
The patent extracts the data transmission function from the traditional PDN connection establishment process. Instead of requiring a full PDN connection with user plane bearers, the invention allows data to be transmitted by extracting only the essential control plane signaling path through the MME, eliminating the need for radio bearer establishment and reducing signaling overhead.
Solution Approach 2:
The patent segments the PDN connection establishment process into optional components. The core network can establish a simplified data path without requiring the complete user plane bearer setup at the access network side, allowing data transmission to proceed with minimized signaling while maintaining essential connectivity functions.
2Productivity
If a full PDN connection is established at the access network side, then data transmission is enabled, but device complexity and resource usage increase
Solution Approach 1:
The invention extracts the minimal necessary signaling path for data transmission from the complete PDN connection framework. By removing the requirement for user plane bearer establishment at the eNB side, the solution maintains data transmission capability while significantly reducing access network configuration complexity and resource consumption.
3Loss of energy
If traditional Service Request procedure is used for small data transmission, then data can be transmitted, but network resource consumption increases
Solution Approach 1:
The patent applies partial action by implementing a simplified data transmission path that performs only the essential functions needed for small data transmission. Instead of establishing complete user plane bearers and invoking the full Service Request procedure, the invention uses a partial signaling path through the MME that suffices for small data volumes, thereby reducing network resource consumption.
Data Source
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AI summary
The invention embodiments disclose a method, system and device for transmitting data, relate to wireless communication technical art, and resolve the question that terminal how to transmit data when packet data network (PDN) connection is not be established. In the invention, when the terminal needs to transmit data and the PDN connection for transmitting the data is not be established, the terminal sends data transmitting message which carries a PDN connection request message and package to be transmitted to mobility management entity (MME).The PDN connection is only established by core network side when the MME receives the data transmitting message, and the package to be transmitted is sent out by the PDN connection. Therefore, the invention enables UE to transmit data when PDN connection is not be established.