Temporary Identity Management in Wireless Communication
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Solution Overview
Problem
In wireless communication, the frequent re-allocation of temporary identities for User Equipment (UE) in wireless networks leads to significant energy consumption and network resource overhead, particularly for low-complexity UEs with limited capabilities such as those operating under severe energy constraints.
Innovation Solution
Implementing a mechanism where temporary IDs are generated locally in both the UE and the wireless network using a predetermined algorithmic sequence, allowing for iterative updates without the need for frequent signaling, thereby minimizing the energy consumption and resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If temporary ID re-allocation is performed frequently to maintain security and anonymity, then UE anonymity and network security are improved, but energy consumption and network resource overhead increase significantly
Solution Approach 1:
The network pre-generates and stores a sequence of temporary IDs for the UE before the UE needs them. When the UE requests a temporary ID, it receives the pre-generated sequence, eliminating the need for repeated generation and allocation signaling. This preliminary preparation reduces both energy consumption and signaling overhead while maintaining security through sequential ID changes.
2Reliability
If temporary ID re-allocation is performed frequently, then network security against tracking is improved, but network signaling overhead and resource consumption increase
Solution Approach 1:
The network generates and stores a sequence of temporary IDs in advance (pre-computation), so that when the UE needs a new ID, it can simply receive the next ID in the sequence without triggering complex allocation procedures. This reduces signaling overhead while maintaining the security benefit of frequent ID changes.
Solution Approach 2:
Instead of generating temporary IDs dynamically through complex network procedures each time, the system creates copies of ID values from a pre-generated sequence. The UE receives copies of pre-computed temporary IDs, reducing the need for repeated generation operations and associated signaling.
3Use of energy by moving object
If simplified procedures are used for low-complexity UEs, then energy consumption is reduced, but the ability to maintain secure temporary ID management may be compromised
Solution Approach 1:
The network performs the computationally intensive task of generating and storing temporary ID sequences in advance, before the low-complexity UE needs them. The UE only needs to receive and use the pre-generated IDs, which requires minimal processing energy while maintaining security through the use of cryptographically secure random values that were generated by the more capable network side.
Data Source
AI summary
A method carried out in a UE for managing temporary IDs for use in communication with a wireless network, the method comprising: receiving (510) a poll message comprising a first temporary ID from the wireless network; transmitting (540) an uplink message to the wireless network in response to the poll message, responsive to the first temporary ID matching a stored current ID obtained by a first iteration in the UE of an algorithm configured to iteratively generate temporary IDs; 10storing (550) a second temporary ID as the current ID, wherein the second temporary ID is an output of a second iteration of the algorithm in the UE next after said first iteration.