Multiplex communications – Generalized orthogonal or special mathematical techniques
Reexamination Certificate
2004-10-27
2008-10-14
Jung, Min (Department: 2616)
Multiplex communications
Generalized orthogonal or special mathematical techniques
C370S208000, C370S491000
Reexamination Certificate
active
07436758
ABSTRACT:
An apparatus and method for transmitting/receiving a pilot pattern set to distinguish a base station in an FDM communication system. The method divides a total frequency bandwidth into at least two sub-bandwidths including a plurality of sub-carriers in an OFDMA (Orthogonal Frequency Division Multiple Access) mobile communication system, configures a single frame cell (FC) using one sub-bandwidth from among the sub-bandwidths and a plurality of OFDM (Orthogonal Frequency Division Multiplexing) symbol intervals, and assigns a pilot signal to a time-frequency cell comprised of at least one OFDM symbol and at least one sub-carrier within the FC. The method includes the steps of spreading a pilot signal and a data signal using different orthogonal codes, synthesizing the spread pilot and data signals, and performing a CDM (Code Division Multiplexing) process; and mapping the CDM-processed pilot and data signals to a predetermined time-frequency cell in the FC.
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Cho Young-Kwon
Ro Jung-Min
Suh Chang-Ho
Yoon Seok-Hyun
Jung Min
Samsung Electronics Co,. Ltd
The Farrell Law Firm PC
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