Abstract: Devices and method related to stacked duplexers. In some embodiments, an assembly may include a first wafer-level packaging (WLP) device having a radio-frequency (RF) shield. The assembly may also include a second WLP device having an RF shield, the second WLP device positioned over the first WLP device such that the RF shield of the second WLP device is electrically connected to the RF shield of the first WLP device.

Abstract: Circuits and methods related to radio-frequency (RF) power couplers. In some embodiments, an RF circuit can include a first circuit having a frequency response that includes a feature within a selected frequency range, and a second circuit coupled to the first circuit such that the feature of the frequency response is at least in part due to the coupling. The RF circuit can further include an adjustment circuit configured to move the feature away from the selected frequency range. In some embodiments, such an RF circuit can be implemented in a packaged module which in turn can be included in a wireless device.

Abstract: Disclosed are circuits and methods for reducing insertion loss effects associated with radio-frequency (RF) power couplers. In some implementations, an RF circuit can include a first path configured to route a first RF signal in a first band, and a second path configured to route a second RF signal in a second band. The RF circuit can further include a power detector having a first coupler configured to detect power along the first path, and a second coupler configured to detect power along the second path. The first coupler and the second couplers can be connected in a daisy-chain configuration. The RF circuit can further include an adjustment circuit implemented along at least one of the first path and the second paths. The adjustment circuit can be configured to move a frequency response feature associated with the power detector to a different frequency range.

Abstract: A method of enabling users of a third party Internet service, who are not necessarily subscribers of an IP Multimedia Subsystem, IMS, network, to access services provided by the IMS network. The method comprises registering a user with said third party Internet service via the Internet using an Internet service identity of the user, and sending to the user, from said third party Internet service and via the Internet, IMS network access information. The access information is then used to register the user with the IMS network, wherein, following IMS registration, the user is able to access IMS network services.

Abstract: Disclosed are circuits and methods for reducing insertion loss effects associated with radio-frequency (RF) power couplers. In some implementations, an RF circuit can include a first path configured to route a first RF signal in a first band, and a second path configured to route a second RF signal in a second band. The RF circuit can further include a power detector having a first coupler configured to detect power along the first path, and a second coupler configured to detect power along the second path. The first coupler and the second couplers can be connected in a daisy-chain configuration. The RF circuit can further include an adjustment circuit implemented along at least one of the first path and the second paths. The adjustment circuit can be configured to move a frequency response feature associated with the power detector to a different frequency range.

Abstract: A method of enabling users of a third party Internet service, who are not necessarily subscribers of an IP Multimedia Subsystem, IMS, network, to access services provided by the IMS network. The method comprises registering a user with said third party Internet service via the Internet using an Internet service identity of the user, and sending to the user, from said third party Internet service and via the Internet, IMS network access information. The access information is then used to register the user with the IMS network, wherein, following IMS registration, the user is able to access IMS network services.