Uplink Control Channel Jamming Resilience via Dynamic Resource Allocation
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Solution Overview
Problem
Wireless communication systems are vulnerable to jamming attacks, where a jamming device interferes with the resources allocated for uplink communication between base stations and user equipment, disrupting communication by targeting specific devices due to the allocation of resources for multiple UEs being the same, making it difficult to prevent disruptions from limited-power jamming devices.
Innovation Solution
Implementing a time-varying allocation of resources for uplink control information, where the base station generates and transmits a shared pattern of resources to UEs using a secure radio channel, which can include a hopping sequence and periodicity, to prevent jamming by changing the resource allocation over time, ensuring that UEs can transmit uplink control information without disruption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a jamming device transmits signals to interfere with allocated radio resources, then communication between base stations and UEs is disrupted, but the jamming device has limited power and cannot identify precise locations of all UEs
Solution Approach 1:
The patent implements dynamic resource allocation where the shared pattern of resources varies over time. The base station generates different resource allocations for different time periods, and UEs adapt their transmissions accordingly. This dynamic approach prevents jamming devices from effectively disrupting communication because the jamming signals cannot continuously track the changing resource locations.
Solution Approach 2:
The base station performs preliminary actions by generating and transmitting the shared pattern of resources to UEs before actual uplink transmissions occur. This advance provisioning of resource allocation information allows UEs to be pre-configured with jamming-resistant resource patterns, enabling them to transmit control information without being vulnerable to jamming attacks.
2Productivity
If uplink information for multiple UEs is allocated to the same resources, then resource utilization is efficient, but jamming devices can target these resources to disrupt communication for multiple UEs
Solution Approach 1:
The patent segments the resource allocation into time-varying shared patterns. Instead of assigning fixed resources to individual UEs or grouping multiple UEs on the same resources, the system divides resources into time-dependent shared patterns that all UEs use differently at different times. This segmentation approach maintains efficient resource utilization while preventing targeted jamming because the shared resources change over time.
Solution Approach 2:
The patent changes the parameters of resource allocation over time through the shared pattern mechanism. The base station generates resource allocations that vary in time domain characteristics, causing the same physical resources to be assigned to different UEs at different times. This parameter change approach allows efficient resource sharing while making jamming attacks ineffective since the target resources are not static.
3Ease of operation
If fixed resource allocation is used for uplink control information, then transmission is simple and reliable, but jamming devices can identify and disrupt these fixed resources
Solution Approach 1:
The patent transforms fixed resource allocation into dynamic resource allocation through the shared pattern mechanism. The base station generates time-varying resource allocations that are communicated to UEs, maintaining operational simplicity from the UE perspective while introducing temporal variability that prevents jamming devices from targeting fixed resources.
Data Source
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AI summary
Methods, systems, and devices for wireless communication are described. The methods, systems, and devices may provide for a time varying allocation of resources which includes a shared pattern of resources. The shared pattern of resources may be generated, determined, or otherwise identified by a base station and transmitted to the user equipment (UE). The shared pattern of resources may include one or more resource blocks (RBs) allocated for uplink transmission such as uplink control information to be transmitted using a physical uplink control channel (PUCCH) or uplink data transmissions using a physical uplink shared channel (PUSCH).