Method to support an asymmetric time-division duplex (TDD) configuration in a heterogeneous network (HetNet)

摘要

A method to support an asymmetric time-division duplex (TDD) configuration at a macro node in a heterogeneous network (HetNet) is disclosed. The method at the macro node comprises transmitting a half blank subframe (HBS) of a downlink subframe during an uplink subframe of a low power node in the HetNet. An effective transmission range of the macro node can overlap with an effective transmission range of the low power node. The downlink subframe and the uplink subframe can occur on a substantially same carrier frequency. The HBS can have a reduced transmission power during an uplink control channel or a random access channel of the uplink subframe of a mobile device transmission to the low power node.

主权项

1. A computer program product, comprising a non-transitory computer readable storage medium having a computer readable program code embodied therein, the computer readable program code adapted to be executed to implement a method, the method comprising:
transmitting a half blank subframe (HBS) of a downlink subframe by a macro node in a heterogeneous network (HetNet) using an asymmetric time-division duplex (TDD) configuration at the macro node in the HetNet during a same time period of an uplink subframe of a low power node in the HetNet, wherein an effective transmission range of the macro node overlaps with an effective transmission range of the low power node, and the downlink subframe and the uplink subframe occur on a substantially same carrier frequency to reduce interference at the low power node caused by the macro node; and wherein the HBS has a reduced transmission power during an uplink control channel or a random access channel of the uplink subframe of a mobile device transmission to the low power node.