Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2008-08-22
2011-11-15
Corsaro, Nick (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S437000, C455S442000, C455S411000, C455S439000, C370S331000
Reexamination Certificate
active
08060093
ABSTRACT:
A handover method of a Mobile Station (MS) and a wireless mobile communication system are provided. The handover method includes sending a handover request message to a Serving Base Station (BS), receiving a handover response message including handover Target BS information and an entire Cipher-based Message Authentication Code (CMAC) value corresponding to a first number of bits, from the Serving BS in response to the handover request message, storing a partial CMAC value corresponding to a second number of Most Significant Bit (MSB) bits in the entire CMAC value, sending to the Serving BS a handover indication message including the entire CMAC value and information on a Target BS to which the MS has determined to handover, selecting a ranging code using the partial CMAC value, and sending the selected ranging code to the Target BS.
REFERENCES:
patent: 2007/0086387 (2007-04-01), Kang et al.
patent: 2008/0089294 (2008-04-01), Shon et al.
Jang Jae-Hyuk
Kang Hyun-Jeong
Lee Sung-Jin
Lim Hyoung-Kyu
Son Jung-Je
Corsaro Nick
Jefferson IP Law, LLP
Samsung Electronics Co,. Ltd.
Wang-Hurst Kathy
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