Cisco Technology, Inc.

Other

Ubiquisys Limited

Pankaj Uplenchwar

Gbenga Kabir Salami

Sandro Grech

Raymond Yuk Chor Kwan

Simon Burley

Olasunkanmi Adio Durowoju

A method is provided in one example embodiment and includes gathering at a small cell base station information to populate a neighbor cell list of the small cell base station; gathering measurement reports from connected mode user equipment ('UE') at the small cell base station; and determining whether uplink interference has exceeded a predetermined threshold and generating an alarm to a central node when the uplink interference has exceeded the predetermined threshold. Upon receipt of notification, the central node triggers an action on an aggressor node, wherein the aggressor node is a node servicing at least one aggressor user equipment ('UE') that significantly contributes to the uplink interference as determined from the gathered information and reports.

Mitigation of uplink interference within heterogeneous wireless communications networks

One example method of operation of a basestation in a mobile communications network is disclosed. The basestation may operate on a carrier channel and may be a member of a group of such basestations within the network. The method comprises establishing the presence of an adjacent basestation outside the group, which basestation operates on a carrier channel at least partially overlapping the carrier channel of the basestation and determining a degree of association between the basestation and the adjacent basestation with reference to other group members. The method further comprises setting at least one of a maximum downlink power for transmissions from the basestation and a maximum uplink power for transmissions from user equipment devices attached to the basestation, based on the degree of association between the basestation and the adjacent basestation. Also disclosed is a basestation operating in accordance with such a method.

Power setting

A method of controlling interference in a cellular communications network comprises, in a first base station of the network: determining that the first base station is suffering from uncontrolled interference from at least one other base station of the network; based on information received from at least one other base station of the network regarding estimates of interference caused at the first base station by at least one user equipment device connected to the respective other base station, selecting a proposed action to mitigate said interference; and notifying the respective other base station of the selection of the proposed action.

Interference control in a cellular communications network

Growing community of inventors

Wiltshire, United Kingdom

Pankaj Uplenchwar