RNTI-Based Message Transmission for Mobile Terminals
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Solution Overview
Problem
In mobile communication systems, transmitting messages to unspecified terminals within a certain range without acquiring their personal information, such as IMSI or TMSI, is challenging due to security concerns and the need to avoid affecting existing communication networks.
Innovation Solution
A message transmission request apparatus that acquires uplink resource assignment information, receives uplink signals, and determines the location and identifier information of terminals, allowing it to request a base station to transmit messages without needing IMSI or TMSI information, using RNTI as a temporary ID for anonymity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If IMSI or TMSI is used to identify terminals for message transmission, then message transmission to specific terminals is achieved, but security problems arise when transmitting and opening these identifiers over the air
Solution Approach 1:
The patent introduces RNTI (Radio Network Temporary Identifier) as an intermediary identifier between the message transmission request apparatus and the terminal. Instead of directly using IMSI or TMSI over the air interface, the system uses RNTI which is assigned by the base station, thereby mediating the identification process and enhancing security while maintaining terminal identification capability
Solution Approach 2:
The patent creates a copy of the terminal identification mechanism through RNTI assignment. The base station assigns RNTI to terminals, and the message transmission request apparatus uses this RNTI copy to identify terminals for message transmission, avoiding the need to transmit sensitive IMSI/TMSI information over the air while maintaining the ability to target specific terminals
2Ease of operation
If uplink signal reception is used to determine terminal location and identifier, then message transmission to adjacent terminals is enabled without personal information, but the system complexity increases due to signal processing requirements
Solution Approach 1:
The patent enables terminals to essentially identify themselves through their uplink signal transmissions. By monitoring the uplink signals that terminals automatically send as part of normal communication, the message transmission request apparatus can extract RNTI and location information without requiring additional identification protocols or manual input, thereby simplifying operation while managing complexity through existing communication infrastructure
3Adaptability or versatility
If traditional message transmission methods are used, then existing network communication is maintained, but the ability to transmit messages to unspecified terminals within a range without affecting existing networks is limited
Solution Approach 1:
The patent segments the message transmission function from traditional network communication. By using uplink signal monitoring and RNTI-based identification, the system can target specific terminals or groups of terminals for message transmission independently from the main network communication flow, allowing flexible message delivery to unspecified terminals within a range without disrupting existing network operations
Solution Approach 2:
The patent performs preliminary actions by monitoring uplink signals and assigning RNTI identifiers before actual message transmission occurs. This preliminary identification and classification of terminals allows the system to prepare message transmission targets in advance, enabling versatile message delivery to unspecified terminals while maintaining network stability through pre-established identification mechanisms
Data Source
AI summary
The present disclosure relates to a message transmission requesting apparatus and method for requesting message transmission from a terminal located within a predetermined range from the message transmission requesting apparatus, a message transmission management server, and a base station. Specifically, the message transmission requesting apparatus comprises: an uplink resource allocation information acquisition unit for acquiring uplink resource allocation information; at least one uplink signal reception unit for receiving an uplink signal on the basis of the uplink resource allocation information; a control unit for determining, on the basis of the uplink signal, information on a terminal which has transmitted the uplink signal, the information including identifier information of the terminal and location information of the terminal; and a message transmission request unit for transmitting the information on the terminal to a base station.