MTC UE Small Data Transmission via Bearer Embedding
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Solution Overview
Problem
In Machine-Type Communications (MTC) services, there is a need to optimize network resource utilization and reduce mobility management and signaling interactions, especially in offline small data transmission states to improve network efficiency.
Innovation Solution
The method involves MTC User Equipment (UE) carrying small data packets to a media gateway during the bearer creation process, where the media gateway sends these packets to the MTC server, avoiding the allocation of core network media and radio bearers, and using Protocol Configuration Options (PCO) parameters to identify and send the data packets, potentially using Fully Qualified Domain Names (FQDNs) for server addressing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If MTC UE transmits small data packets using traditional bearer creation process, then reliable data transmission is achieved, but signaling interactions increase and network resources are wasted
Solution Approach 1:
The patent extracts the small data packet transmission function from the traditional bearer creation process. Instead of establishing a full bearer with all its signaling overhead, the solution extracts only the essential data transmission capability by embedding small data packets directly in attach request or service request messages, thereby reducing signaling interactions while maintaining transmission reliability
Solution Approach 2:
The patent applies preliminary action by pre-embedding small data packets into attach request or service request messages before actual data transmission is needed. This allows the network to retrieve and forward the pre-stored small data packets without requiring separate transmission signaling, thus reducing overall signaling complexity while ensuring data is transmitted reliably
2Reliability
If MTC UE establishes bearers for each small data packet transmission, then data transmission is ensured, but network resource utilization deteriorates
Solution Approach 1:
The patent merges multiple functions into a single message structure. Small data packets are combined with attach request or service request messages, allowing the network to handle both connection establishment and data transmission in one signaling exchange. This eliminates the need for separate bearers for each small data packet, improving network resource utilization while maintaining transmission reliability
Solution Approach 2:
The patent makes the attach request and service request messages multi-functional by enabling them to carry both control plane information and small data packets simultaneously. This universal message structure eliminates the need for dedicated data bearers for small packets, as the same signaling messages serve both connection management and data transmission purposes, thereby improving network resource utilization
Data Source
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AI summary
The present disclosure provides a method for transmitting a small data packet, wherein Machine-Type Communications User Equipment (MTC UE) carries a small data packet needed to be sent to a media gateway in a network during a process of creating a bearer, and the media gateway sends the received small data packet to a MTC server. The present disclosure further discloses a system for transmitting a small data packet. According to the Machine to machine (M2M) application requirement, network optimization is performed for the case that a small data packet is sent in a M2M offline state, thereby storing the allocation of radio resources and core network media resources, reducing the mobility management and signaling interaction in the offline state, improving the utilization ratio of network resources.