Physical Layer Security Activation in Wireless UEs
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Solution Overview
Problem
Existing wireless communication systems face challenges in securing messages due to high processing overhead from encryption and vulnerability to malicious devices intercepting messages, especially in scenarios where encryption can be computationally bypassed.
Innovation Solution
Implementing physical layer security techniques, such as jamming signals and encoding messages with pseudo-random bits, in specific time intervals designated by control signaling, to enhance security without the high processing overhead of encryption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If encryption techniques are used to protect wireless communications, then message security is improved, but processing overhead and latency increase
Solution Approach 1:
The patent segments the communication time into distinct intervals: secrecy intervals where physical layer security procedures are applied, and non-secrecy intervals where normal communication occurs. This segmentation allows security measures to be applied only when necessary, reducing overall processing overhead while maintaining security for sensitive communications.
Solution Approach 2:
The patent implements periodic physical layer security procedures at specific intervals rather than continuously. The base station configures the UE with a pattern of secrecy intervals repeated over time, enabling security operations to occur periodically only when needed, thus reducing processing overhead and latency compared to continuous encryption.
2Reliability
If physical layer security procedures are performed continuously, then message security is improved, but power consumption and processing overhead increase
Solution Approach 1:
The patent divides time into secrecy intervals and non-secrecy intervals, enabling the UE to perform physical layer security procedures only during secrecy intervals. This segmentation allows the device to conserve power during non-secrecy intervals while maintaining security during secrecy intervals, thus reducing overall power consumption.
Solution Approach 2:
The patent configures the UE with a periodic pattern of secrecy intervals where physical layer security procedures are activated. The UE can enter low-power states during non-secrecy intervals and only wake up to perform security operations during configured secrecy intervals, significantly reducing power consumption compared to continuous security operations.
3Reliability
If encryption is used to secure communications, then message security is improved, but latency increases due to processing requirements
Solution Approach 1:
The patent implements periodic physical layer security procedures during configured secrecy intervals rather than applying security measures to every communication. This periodic approach reduces the frequency of security processing operations, thereby reducing latency while maintaining security for communications during secrecy intervals.
Solution Approach 2:
The patent segments communications into those requiring security (during secrecy intervals) and those that do not (during non-secrecy intervals). By segmenting the communication flow and applying security only where necessary, the patent reduces overall processing latency while maintaining security for sensitive communications.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a user equipment (UE) may receive, from a base station, control signaling identifying a configuration of a set of time intervals for communication with the base station, the set of time intervals including a subset of the time intervals for which the UE is to perform a physical layer security procedure. In some cases, the UE may activate a timer associated with performing the physical layer security procedure in response to a trigger. The UE and the base station may communicate one or more messages using the physical layer security procedure, for example, in the subset of the time intervals identified by the control signaling, while the timer is active, or both. The physical layer security procedure may involve the UE performing physical layer security encoding, signal jamming, or both.