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Link Availability Link availability is the fraction or percentage of time that a communications path can successfully support service within acceptable performance thresholds. It is a measure of operational readiness and continuity… Concept/Framework Local Loop A local loop is the physical or logical access segment that links the customer premises to the service provider’s network edge. It is the final connection used to deliver access… Concept/Framework Mechanically-Steered Antenna A mechanically-steered antenna is a directional antenna system that uses motors or other mechanical actuators to alter pointing direction and maintain alignment with a target. It is used when physical… Hardware Mobile Access Network A mobile access network is the collection of radio access elements, control logic, and supporting transport that provides connectivity to moving users and devices. It is the access layer that… Service Model Mobile Network A mobile network is a communications network that delivers access and transport services to users, devices, or assets that can change location while connected. It is built to preserve service… Concept/Framework Multipath Multipath is a radio propagation phenomenon in which transmitted energy arrives at the receiver over multiple reflected, refracted, or scattered paths. The resulting interference can change the observed signal quality. Concept/Framework Neighbor Exchange Neighbor exchange is the protocol process by which adjacent routing peers advertise, learn, and maintain reachability information. It is the control-plane dialogue that supports path selection and routing convergence. Protocol Network Segment A network segment is a portion of a larger network separated for forwarding, security, management, or operational purposes. It can be defined by switching, routing, policy, or physical separation. Concept/Framework Origin Server An origin server is the primary server or service endpoint that stores and serves the canonical version of content or application responses. Other systems, such as caches or proxies, may… Hardware Oscillator An oscillator is an electronic circuit or device that produces a periodic signal at a target frequency without requiring an external periodic input. It is used as a frequency reference… Hardware