The idea of aggregating multiple carriers to increase performance is included in both LTE and HSPA. A logical step fully leverage existing HSPA deployments and future LTE deployments is to aggregate the capacity of both systems and tie them together into a single mobile system. The concept is illustrated in Figure.
The aggregation of LTE and HSPA systems enable the peak data rates of the two systems to be added together. It also allows for optimal dynamic load balancing between the two radios. A small number of active LTE and HSPA aggregation capable devices is sufficient to exploit this load balancing gain, since the network can schedule these devies to carry more data on the radio that has lower instantaneous loading and less data on the radio with the higher load at any given moment.
No comments:
Post a Comment