Dual SIM mobile terminal and operating method thereof
AssigneeLG Electronics Inc.
InventorsYunhwan Kang, Woohyun Baik, Wooyoung Kwak, Sungkyu Lee
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Abstract
Disclosed herein is a dual SIM terminal and an operating method thereof for supporting dual standby and single talk using a single baseband. The dual SIM mobile terminal may include a controller which is a single chipset, a dual SIM, and two radio frequency (RF) units, thereby having an effect capable of providing a service at the same level as a dual SIM using two mobile terminals even with one mobile terminal. Furthermore, dual SIM switching is performed according to a state of the network, a pricing system, and a user's setting, thereby providing the user's desired service.
Claims35
A dual SIM mobile terminal, comprising:
- a dual SIM configured to support different services, the dual SIM including a primary SIM and a secondary SIM;
- a first and a second wireless communication unit;
- and
- a controller connected to the dual SIM and the first and second wireless communication units to support double standby and single talk,
- wherein the controller performs network synchronization using neighboring cell information of each SIM network if a service requested by the user through the switched SIM is performed and then a service request for the SIM is received again.
A method of operating a dual SIM mobile terminal, the method comprising:
- detecting an active state of the dual SIM, the dual SIM including a primary SIM and a secondary SIM;
- automatically performing SIM switching according to a network state of the SIM and a user's service request if the initial user's service is requested in an active state of the dual SIM;
- performing a service requested by the user through the switched SIM;
- and
- performing network synchronization using neighboring cell information of each SIM network if a service requested by the user through the switched SIM is performed and then a service request for the SIM is received again.
Dependencies are inferred from the claim text.