Method and apparatus for offloading backhaul traffic

摘要

A method and apparatus for offloading backhaul traffic are disclosed. A first base station may detect a condition triggering backhaul traffic offloading for a wireless transmit/receive unit (WTRU). The first base station may establish a wireless connection with a second base station, and offload at least one bearer of the WTRU onto the second base station via the wireless connection. The first base station may be a macro-cell base station and the second base station may be a femto-cell base station having a wired connection to Internet and a mobile operator core network. The first or second base station may include a relay functionality and act as a relay between the WTRU and the other base station. The backhaul link may be established using a Uu, Un, X2 interface or any other interface over a licensed or license-exempt frequency, a TV white space frequency, etc.

主权项

1. A method for offloading backhaul traffic, the method comprising:
detecting, by a first base station, a condition that triggers backhaul traffic offloading for a wireless transmit/receive unit (WTRU) that is associated with the first base station; establishing a wireless connection between the first base station and a second base station; and offloading, by the first base station, at least one bearer of the WTRU that is transferred via the first base station onto the second base station via the wireless connection, such that the offloaded bearer is routed to and from the WTRU via the second base station and the first base station, one of the first base station and the second base station comprising a relay node, the offloaded bearer being tunneled between the first base station and the second base station.