Our WiMAX end-to-end 4Motion® solution employs advanced schedulers that go beyond the basic scheduling control mechanisms in the mobile WiMAX standard to achieve the optimal balance of throughput and robustness to each and every subscriber.
Scheduling control is a mechanism, located in the base station, for managing upstream and downstream packet allocations based on traffic requirements and channel conditions at any given moment. The scheduler allocates radio resources in frequency and time, based on considerations such as; QoS parameters for the specific traffic-type, individual subscriber service level agreements (SLA), and connection-by-connection path conditions. Since data-oriented traffic can vary considerably between uplink and downlink, asymmetric capacity allocation is also supported in time division duplex (TDD) implementations with appropriate radio resources and packet assignments done on a per-sector basis for a variable duration based on actual demand. These basic scheduling control mechanisms are part of the mobile WiMAX standard.
Alvarion’s 4Motion® radio resource management goes beyond the basic scheduling control mechanisms in the mobile WiMAX standard taking advantage of many additional parameters to achieve the optimal balance of throughput and robustness to each and every subscriber. Alvarion’s advanced schedulers control both downstream and upstream transmissions, with the upstream scheduler located at the base station for rapid response in providing transmission grants to active subscribers. Grants range from basic scheduling to the use of dynamic channel information for performance optimization on a connection by- connection basis with the option of optimizing sector throughput by proportional fairness of devices per their distance from the BS. The advanced scheduling function enables frame-by-frame capacity allocations to support a diverse set of subscribers, thus assuring that available radio resources are assigned in accordance with committed customer-by-customer service level agreements.
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