VoIP enabled femtocell with a USB transceiver station

Details VoIP enabled femtocell with a USB transceiver station VoIP enabled femtocell with a USB transceiver station

2011-08-02

2011-08-02

Hu, Jinsong (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C455S444000, C455S448000

Reexamination Certificate

active

07990912

ABSTRACT:
Telephone calls between a mobile station (MS) and the mobile network or PSTN are routed through the Internet via VoIP using a femtocell, as opposed to the traditional macrocellular network. The femtocell can comprise a USB Transceiver Station that is connected to a personal computer through a universal serial bus port, which provides both power and a multi-megabit per second connection between the personal computer and the USB transceiver station. The USB transceiver station can comprise a microcontroller to manage signaling between the RF front end/baseband processor and the personal computer, as well as a precise timing mechanism to assist the synchronization of femtocell timing with the surrounding macrocellular network, if it is present. The USB transceiver station can have a compact form factor that facilitates a high degree of portability by the subscriber, such as being readily attachable to their keychain.

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