Methods and arrangements for handling a downlink transmission in a cellular network

摘要

A method in a first base station (105) for handling a downlink transmission is provided. The first base station (105) serves a first user equipment (120). The first base station (105) defines a subframe in which the first base station (105) is to avoid interfering a downlink radio channel between a second base station (115) and a second user equipment (125). The second user equipment (125) is located in an extended range of the second base station (120). The first base station (105) performs, in the defined subframe, a downlink transmission to the first user equipment (120). The first base station (105) receives, from the second base station (115), an indication of an interference caused by the performed downlink transmission on the downlink radio channel. The first base station (105) adjusts a further downlink transmission to be performed by the first base station (105) based on the indication.

主权项

1. A method in a first base station for handling a downlink transmission, which first base station serves a first user equipment, the method comprising:
defining a subframe in which the first base station is to avoid interfering with a downlink radio channel between a second base station and a second user equipment, which second user equipment is served by the second base station and is located in an extended range of the second base station, which extended range is an area in which a downlink signal transmitted from the first base station is stronger than a downlink signal transmitted from the second base station; performing, in the defined subframe, a downlink transmission to the first user equipment; receiving from the second base station an indication of an interference caused by the performed downlink transmission on the downlink radio channel; and adjusting, based on the received indication, a further downlink transmission to be performed by the first base station in a further subframe in which the first base station is to avoid interfering with the downlink radio channel.