Network Node Admission for Privileged Access Under Congestion

The patent segments the network capacity into different pools: a first pool for conventional UEs and a second pool for privileged UEs. This segmentation allows the network to independently manage resources for different user categories, ensuring that privileged users maintain access even when conventional users exhaust their share of resources. The segmentation is implemented at multiple levels including UE context admission, radio bearer allocation, and scheduling decisions.

The patent implements preliminary action by pre-establishing reserved resources and preemptible processes for privileged users before congestion occurs. The network node reserves a portion of UE context resources and configures preemptible processes that can interrupt conventional user sessions when needed. This preliminary preparation ensures that when privileged users need access during congestion, the network can immediately activate reserved resources without waiting for conventional users to release them.

The patent applies local quality by treating different user categories differently at the network node. Privileged users receive preferential treatment in terms of resource allocation and admission decisions, while conventional users are treated normally. The network node makes locally optimized decisions for each user type based on their priority level, allowing simultaneous satisfaction of both accessibility and capacity management requirements.

The patent implements feedback mechanisms where the network node continuously monitors network capacity status and adjusts admission decisions accordingly. When the network detects that internal capacity limitations are approaching, it activates preemptible processes and reserves resources for privileged users. This feedback loop ensures that the network maintains appropriate capacity management while still providing access to privileged users during congestion conditions.

The patent manages complexity by segmenting the resource management function into distinct, manageable components: a first UE context pool for conventional users, a second UE context pool for privileged users, and predefined preemptible processes. This segmentation allows the network to handle privileged user priorities through standardized, pre-configured mechanisms rather than complex real-time decision-making algorithms.

The patent reduces operational complexity by implementing preliminary action through pre-defined preemptible processes and reserved resource pools. Rather than creating complex dynamic management systems, the network pre-configures what happens during congestion events, allowing automated, rule-based responses that are simpler to implement and manage than adaptive algorithms would be.