Konkurrenzbasierte direktzugriffsprozedur für mobile kommunikation

AT1905956TUndetermined Publication Date: 2026-04-15DEUTSCHE TELEKOM AG
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Patent Information

Application Number
AT2021155647T
Authority / Receiving Office
AT · AT
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-02-06
Publication Date
2026-04-15
Estimated Expiration
2041-02-06

AI Technical Summary

Technical Problem

In contention-based random access procedures of 4G and 5G networks, the current method of echoing the user equipment contention resolution identity in the contention resolution message can be exploited by malicious devices to intercept and misuse the identity, leading to potential fraud and resource consumption.

Method used

A contention resolution message is introduced that includes a defined part of a hash value of the user equipment contention resolution identity, calculated using a public hash algorithm like SHA-256, ensuring only the accepted UE can verify the successful contention resolution by comparing it with its own hash value.

Benefits of technology

This solution prevents misuse by ensuring only the legitimate user equipment can verify the contention resolution, thereby mitigating fraud and resource misuse in contention-based random access procedures.

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Abstract

The present invention refers to a contention resolution message for transmission from a base station (eNodeB, gNodeB) to a mobile terminal (UE_A) in a contention based random access procedure, wherein the contention resolution message (305) is setup in response to receiving a first scheduled transmission message (303) of the mobile terminal (UE_A) and comprises a defined part of a hash value of a mobile terminal contention resolution identity. The present invention also refers to a respective base station, a respective mobile terminal and a respective contention based random access procedure.
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