A method for selection of an unlicensed wireless channel, comprising: for each of two or more unlicensed wireless channels available to a user device of a communications network and available to one or more network nodes of the communications network, determining, by a control system in the communications network, a signal quality level associated with the unlicensed wireless channel; obtaining, by the control system in the communications network, a target time share parameter associated with the unlicensed wireless channel; and obtaining, by the control system in the communications network, a first report of signal quality detected by the user device for the unlicensed wireless channel; obtaining, by the control system in the communications network, received power measurements from the user device for at least one licensed wireless channel over which the user device operates; and selecting, by the control system in the communications network, an unlicensed wireless channel from the two or more unlicensed wireless channels for use as a carrier by the user device, the unlicensed wireless channel being selected based on a combined metric of the signal quality level and the target time share parameter, wherein each target time share parameter represents a time or fraction of resources of a respective one of the two or more unlicensed wireless channels that is potentially available for use by a respective one of the one or more network nodes, and wherein the determining, by the control system in the communications network, the signal quality level associated with the unlicensed wireless channel is characterized by: obtaining a second report of signal quality detected by one of the one or more network nodes for the unlicensed wireless channel; determining a residual interference at the user device for the unlicensed wireless channel based on the first and second reports of signal quality; and determining the signal quality level associated with the unlicensed wireless channel based on a ratio of the received power measurement to the residual interference at the user device. for each of two or more unlicensed wireless channels available to a user device of a communications network and available to one or more network nodes of the communications network, determining, by a control system in the communications network, a signal quality level associated with the unlicensed wireless channel; obtaining, by the control system in the communications network, a target time share parameter associated with the unlicensed wireless channel; and obtaining, by the control system in the communications network, a first report of signal quality detected by the user device for the unlicensed wireless channel; determining, by a control system in the communications network, a signal quality level associated with the unlicensed wireless channel; obtaining, by the control system in the communications network, a target time share parameter associated with the unlicensed wireless channel; and obtaining, by the control system in the communications network, a first report of signal quality detected by the user device for the unlicensed wireless channel; obtaining, by the control system in the communications network, received power measurements from the user device for at least one licensed wireless channel over which the user device operates; and selecting, by the control system in the communications network, an unlicensed wireless channel from the two or more unlicensed wireless channels for use as a carrier by the user device, the unlicensed wireless channel being selected based on a combined metric of the signal quality level and the target time share parameter, wherein each target time share parameter represents a time or fraction of resources of a respective one of the two or more unlicensed wireless channels that is potentially available for use by a respective one of the one or more network nodes, and wherein the determining, by the control system in the communications network, the signal quality level associated with the unlicensed wireless channel is characterized by: obtaining a second report of signal quality detected by one of the one or more network nodes for the unlicensed wireless channel; determining a residual interference at the user device for the unlicensed wireless channel based on the first and second reports of signal quality; and determining the signal quality level associated with the unlicensed wireless channel based on a ratio of the received power measurement to the residual interference at the user device. obtaining a second report of signal quality detected by one of the one or more network nodes for the unlicensed wireless channel; determining a residual interference at the user device for the unlicensed wireless channel based on the first and second reports of signal quality; and determining the signal quality level associated with the unlicensed wireless channel based on a ratio of the received power measurement to the residual interference at the user device.