Mobile Radio Network Broadcast Channel Key Encoding
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Solution Overview
Problem
Current mobile radio networks face challenges in efficiently providing information to mobile devices while optimizing resource usage, especially in terms of battery conservation and authorized access, due to the large amount of data to be handled and maintained.
Innovation Solution
A method where information items, including positioning technology assistance data, are encoded with a specific key within the mobile radio network and broadcasted to mobile devices via a broadcast channel, ensuring only authorized devices can access the information, with the key provided during initial connection or handover, and used to decode the information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If information is broadcasted via broadcast channel to all mobile devices, then information delivery coverage is improved, but energy consumption increases and unauthorized access cannot be prevented
Solution Approach 1:
The patent applies preliminary action by providing the key to the mobile device before broadcasting the information item. The key is provided during initial connection or handover, enabling the mobile device to selectively decode only authorized information items. This prevents unnecessary decoding attempts and energy consumption for unauthorized devices while ensuring authorized devices can receive information efficiently.
2Reliability
If all information items are provided to all mobile devices, then service coverage is improved, but network load and data handling complexity increase
Solution Approach 1:
The patent applies local quality by making the information item accessible only to specific mobile devices that possess the appropriate key, rather than providing universal access. The broadcast channel transmits information to all devices, but only authorized devices with the correct key can decode and process the information. This reduces network load and data handling complexity while maintaining comprehensive service coverage for authorized users.
3Speed
If information is transmitted without encryption, then transmission speed is improved, but security and authorized access control deteriorate
Solution Approach 1:
The patent uses the key as an intermediary element that enables secure information transmission without compromising speed. The key is provided beforehand during connection establishment, allowing the mobile device to decode information items efficiently. This intermediary mechanism maintains transmission speed while ensuring that only authorized devices can access and process the information, thus preserving both speed and security.
Data Source
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AI summary
The present invention relates to a method and a communication system for providing information to a mobile device (UE) operated in a mobile radio network forming a service area having a cellular network structure composed of radio cells, whereby an information item to be provided to the mobile device (UE) for reproduction and/or usage by the mobile device (UE) is encoded with a specific key (MAC) on side of the mobile radio network, the encoded information item is transmitted from the mobile radio network to the mobile device (UE) via a broadcast channel (BCH) used within at least one radio cell of the mobile radio network, the information item received by the mobile device (UE) from the radio cell of the mobile radio network via the broadcast channel (BCH) is decoded on side of the mobile device (UE) by using the specific key (MAC), whereby the specific key (MAC) is provided to the mobile device (UE) from the mobile radio network when the mobile device (UE) connects a radio cell of the mobile radio network for the first time or during a handover from one radio cell of the mobile radio network to another radio cell of the mobile radio network. The present invention further relates to a mobile radio network forming a service area having a cellular network structure composed of radio cells which for providing information to a mobile device (UE) operated in the mobile radio network is designed and/or adapted to execute the method steps of the mobile radio network of a method according to the present invention. The present invention further relates to a mobile device (UE) operated respectively operate-able in a mobile radio network forming a service area having a cellular network structure composed of radio cells which for providing information from the mobile radio network to the mobile device (UE) is designed and/or adapted to execute the method steps of the mobile device (UE) of a method according to the present invention.