Mediatek Corporation

Jing-Yi Wu

Ying-Chieh Liao

Li-Chi Huang

Chen-Hsuan Lee

Techniques for efficiently performing public land mobile network (PLMN) list generation or PLMN search on user equipment for use in a mobile communication system are described. The user equipment is operating in a plurality of supported modes and each supported mode includes a plurality of frequency bands. The user equipment includes an antenna, two RF transceivers and a processor. The RF transceivers are coupled to the antenna for operating in the operating frequency bands via the antenna. The processor coupled to the RF transceivers receives a request requesting PLMN list generation or PLMN search, determines whether both or either of the RF transceivers are available for handling the PLMN list generation or PLMN search, respectively directs the RF transceivers to generate a PLMN list or perform a search for at least one selected operating frequency band according to the request and a dispatch rule, and provides a corresponding execution result.

Method and user equipment with dual RF transceivers to perform PLMN list generation or PLMN search

A system for handling packet-switched data transmission is provided. The system includes a first RF module, a second RF module, a first subscriber identity card camping on a cell via the first RF module, a second subscriber identity card camping on the same cell or a different cell via the second RF module and a load balancing unit. The load balancing unit receives an uplink IP packet, determines one subscriber identity card from the first and second subscriber identity cards when the uplink IP packet comprises information regarding an unestablished connection of a recognized application, and transmits the uplink IP packet to a destination via the determined subscriber identity card and the RF module corresponding to the determined subscriber identity card.

Growing community of inventors

Ilan Hsien, Taiwan

Jing-Yi Wu