Abstract: The disclosure is related to locking an orientation of a display screen of a mobile display device. In an aspect, the mobile display device stores a first local orientation lock associated with a first application, wherein the first local orientation lock specifies a first orientation of the display screen to which the orientation of the display screen is to be set when the first application is displayed on the display screen, receives an instruction to display the first application, determines whether a global orientation lock for the display screen is set, wherein the global orientation lock specifies a global orientation of the display screen to which the orientation of the display screen is to be set, and sets, based on the global orientation lock being set, the orientation of the display screen to the global orientation and displaying the first application on the display screen in accordance with the global orientation.

Abstract: A method for authenticating a circuit switched (CS) call on a virtual subscriber identity module (VSIM) includes: authenticating the VSIM for a packet switched (PS) call connection using authentication information obtained from a remote server through a software subscriber identity module (soft-SIM) connection to the remote server; initiating a call connection on a CS radio access technology (RAT) between the VSIM and a first communication network; and authenticating the VSIM CS call connection to the first communication network through the VSIM PS connection in response to an authentication request for the call connection on the CS RAT.

Abstract: A method for authenticating a circuit switched (CS) call on a virtual subscriber identity module (VSIM) includes: authenticating the VSIM for a packet switched (PS) call connection using authentication information obtained from a remote server through a software subscriber identity module (soft-SIM) connection to the remote server; initiating a call connection on a CS radio access technology (RAT) between the VSIM and a first communication network; and authenticating the VSIM CS call connection to the first communication network through the VSIM PS connection in response to an authentication request for the call connection on the CS RAT.

Abstract: Methods, systems, and devices for wireless communication are described. Mobile devices, such as a user equipment (UE), may be able to communicate over a number of different networks, such as a WWAN and a WLAN. Similarly, the UE may be able to perform calls using a number of different networks. At times, completing a call using a WWAN may be preferable to using a WLAN, and at other times completing a call using a WLAN may be preferable to using a WWAN. As such, a UE may receive a plurality of calls, may determine that the calls originate from a same user, may determine which network to select for completing the call, and may complete the call using the selected network. Similarly, a UE may share a vocoder and/or other call components between WWAN components and WLAN components to enable simultaneous initiation of calls on different networks.

Abstract: Various embodiments for calibrating receive chains on a mobile communication device may include identifying a calibrated receive chain and an un-calibrated receive chain of the mobile communication device and obtaining a first series of gain measurements for the calibrated receive chain and a second series of gain measurements for the un-calibrated receive chain. The mobile communication device may determine a path gain difference between the calibrated receive chain and the un-calibrated receive chain based on the first series of gain measurements and the second series of gain measurements, and compensate a gain of the un-calibrated receive chain using the path gain difference.