Patent ID: 9131434
Filing Date: 2015-09-08
Classification: H04W

Abstract:
1. A method comprising: sending, by a network node to a mobile device, information indicating whether a cell on a first carrier of a first type is to be used as a reference cell, wherein the reference cell is at least one selected from among a pathloss reference cell and a timing reference cell, and wherein the first carrier of the first type is part of a carrier aggregation that further includes at least a second carrier of a second, different type; sending, by the network node to the mobile device, configuration information regarding whether the mobile device is to monitor an enhanced control channel; determining, by the network node, a delay value associated with modification of the carrier aggregation, the delay value representing a time delay during which the mobile device is unable to receive signaling from the network node responsive to the modification of the carrier aggregation; and determining whether the cell on the first carrier of the first type is to be used as the reference cell based on determining whether a density of a synchronization signal exceeds a density threshold.