Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for switching a secondary cell to a primary cell. A user equipment (UE) monitors a first radio condition of the UE for beams of a primary cell and a second radio condition for beams of one or more secondary cells configured for the UE in carrier aggregation. The UE transmits a request to configure a candidate beam of at least one candidate secondary cell as a new primary cell in response to the first radio condition not satisfying a first threshold and the second radio condition for the at least one candidate secondary cell satisfying a second threshold. A base station determines to reconfigure at least one secondary cell as the new primary cell. The base station and the UE perform a handover of the UE to the new primary cell.

Abstract: In a machine-implemented method for use with a handheld device, a user is able to virtually try on a selected garment using augmented reality. The machine-implemented method includes: (A) establishing a garment database containing information corresponding to at least one garment, the information corresponding to each garment including a backside image of the garment; (B) establishing a marker database containing feature information of a backside marker; and (C) upon determining from a captured image of the user who is tagged with at least one physical maker that the physical marker corresponds to the backside marker, retrieving from the garment database the backside image of a selected garment, and superimposing the retrieved backside image onto the captured image of the user to form a composite image for display on a screen of the handheld device.

Abstract: In a machine-implemented method for use with a handheld device, a user is able to virtually try on a selected garment using augmented reality. The machine-implemented method includes: (A) establishing a garment database containing information corresponding to at least one garment, the information corresponding to each garment including a backside image of the garment; (B) establishing a marker database containing feature information of a backside marker; and (C) upon determining from a captured image of the user who is tagged with at least one physical maker that the physical marker corresponds to the backside marker, retrieving from the garment database the backside image of a selected garment, and superimposing the retrieved backside image onto the captured image of the user to form a composite image for display on a screen of the handheld device.