LTE Carrier Segmentation for MTC Synchronization
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Solution Overview
Problem
Deploying machine type communication (MTC) devices in conventional fourth generation mobile telecommunication networks leads to inefficient use of network resources, potentially reducing the quality of service for other users due to high volumes of random access requests and signaling data transmission, which is not time-critical.
Innovation Solution
Implementing time multiplexing of an additional carrier in LTE networks for MTC data transmission, using it for MTC data during specific periods while ensuring LTE devices remain synchronized through control data, thus maintaining primary carrier availability for LTE data and minimizing resource consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If MTC devices are deployed in a conventional fourth generation mobile telecommunication network, then MTC applications can be supported, but network resources are consumed transmitting non-time critical data from MTC devices at the expense of time critical data transmission by other users
Solution Approach 1:
The network resources are segmented into different classes: a first class of terminals (MTC devices) and a second class of terminals (conventional devices). Different carriers are allocated to different classes of terminals, with a first carrier for MTC devices and a second carrier for conventional devices. This segmentation allows MTC devices to be supported while protecting the quality of service for time-critical data transmission by conventional devices.
Solution Approach 2:
A second carrier acts as an intermediary resource specifically allocated for MTC devices. This intermediary carrier allows MTC data transmission without interfering with the primary carrier used by conventional devices for time-critical communications. The second carrier serves as a dedicated channel that mediates between the needs of MTC applications and the requirements of existing network services.
2Adaptability or versatility
If MTC devices operate in a conventional fourth generation network, then integration is achieved, but a high volume of random access requests and signaling data transmission reduces network resources available for other users
Solution Approach 1:
The network is segmented into dedicated resources for MTC devices and conventional devices. A second carrier is specifically allocated for MTC devices, separating their random access requests and signaling data from the main network resources. This segmentation ensures that MTC integration does not deplete the quantity of network resources available for other users.
Solution Approach 2:
The solution moves MTC device communications to another dimension by allocating a separate second carrier frequency. Instead of competing for resources on the same carrier, MTC devices operate on a different frequency dimension, allowing their high-volume signaling and random access requests to coexist with conventional device communications without resource depletion.
3Adaptability or versatility
If an entirely independent MTC type network is deployed, then MTC applications can operate autonomously, but the cost of a license for a suitable carrier makes it uneconomic
Solution Approach 1:
The second carrier is designed with multi-functionality, serving both as a dedicated resource for MTC devices and maintaining compatibility with conventional fourth generation network operations. This universal carrier can handle both MTC traffic and potentially support future services, reducing the need for entirely separate licensed spectrum and making the deployment more economical.
Solution Approach 2:
The solution merges MTC network requirements with the existing fourth generation network infrastructure. By integrating MTC device support into the conventional network using a second carrier, the system combines the autonomy needs of MTC applications with the established network framework, avoiding the need for a completely separate licensed network and reducing overall costs.
Data Source
AI summary
A telecommunications system communicating data to/from one or more terminals, including one or more transmitters to transmit first and second carriers over respective first and second frequency bandwidths. During a first time period the transmitters can transmit data receivable by first and second classes of terminal on the first and second carriers. During a second different time period, the transmitters can transmit data to the second class of terminal on the first and second carriers in combination. A data transmission format on the first carrier in the first time period is incompatible with a user data transmission format on the second carrier during the first time period. The transmitters can transmit control data on the first carrier in the first time period which is receivable by the second class of terminal to enable the second class of terminal to maintain synchronisation with the first carrier during the first time period.