Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2007-09-11
2007-09-11
Appiah, Charles N. (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S456600, C455S456500, C455S507000, C455S339000, C455S422100, C455S180200, C455S067110, C455S189100, C455S208000, C455S003060, C455S141000, C342S458000
Reexamination Certificate
active
10065413
ABSTRACT:
Mobile terminal implementing a ranging signal receiver and method. Means are provided to incorporate ranging signal reception capability into a mobile terminal (such as a UMTS terminal) notwithstanding the fact that the ranging signal has a bandwidth that is wider than the bandpass of filtering for native signals within the terminal. A ranging signal receiving subsystem receives broadband signals that comprise synchronization bursts, which are equally spaced in time, such as from digital television stations. A common filter will have a bandpass that it is smaller than the bandwidth of the ranging signals. However, the correlation subsystem of the mobile terminal enables recovery of synchronization bursts by correlating the ranging signal with a known sequence that has been predistorted to account for the bandpass of the common filter.
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Appiah Charles N.
Daniel, Jr. Willie J.
Moore & Van Allen PLLC
Phillips Steven B.
Sony Ericsson Mobile Communications AB
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