System and method for user equipment mobility support in a heterogeneous network

摘要

A method for supporting mobility in a user equipment by a macro cell as the user equipment moves into a coverage area of a low power node includes receiving a measurement report from the user equipment, and selecting a technique for supporting mobility according to the measurement report, and a support factor of the user equipment and of a communications system where the user equipment is operating. The method also includes operating the macro cell and the low power node according to the selected technique.

主权项

1. A method for supporting mobility in a heterogeneous network, the method comprising:
establishing a wireless link between a user equipment and a macro cell; receiving, by a macro cell, a measurement report from the user equipment when the user equipment migrates into range of a low power node, the low power node being located within a coverage area of the macro cell; and selecting a cooperation technique for reducing interference in the heterogeneous network in accordance with the measurement report and a support factor, wherein the cooperation technique requires the low power node to transmit at a reduced power level over network resources reserved for carrying transmissions between the user equipment and the macro cell, and wherein the support factor includes user equipment mobility information, type of application executing on the user equipment, condition of a channel between the user equipment and the macro cell, traffic load of the macro cell, traffic load of the low power node, backhaul connectivity between the macro cell and the low power node, an intended use of the low power node, or a combination thereof.