Pulse or digital communications – Receivers
Reexamination Certificate
2006-12-12
2006-12-12
Bocure, Tesfaldet (Department: 2611)
Pulse or digital communications
Receivers
C375S148000
Reexamination Certificate
active
07149258
ABSTRACT:
Methods and apparatus are described for estimating a phase offset between two channels in a communication system to allow the use of both in determining a complex channel estimate. The phase offset arises from the system's rotation of only one of the two signaling channels prior to its transmission on one of the two antennas in transmission diversity mode. The phase offset is calculated in a receiver, such as a mobile station. For example, in a 3GPP system, the DPCH, which is rotated, and the CPICH, which is not, may be used in channel estimation.
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Eriksson Håkan
Nilsson Johan
Bocure Tesfaldet
Potomac Patent Group PLLC
Telefonaktiebolaget L M Ericsson (publ)
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