Cell search method and apparatus for asynchronous mobile communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsDong Ryeol Ryu, Kwang Man Ok
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Abstract
A cell search method and apparatus for an asynchronous mobile communication system are provided. A Secondary Synchronization Code (SSC) correlator despreads a signal at every slot boundary in accordance with a z-sequence to output a SSC correlation value. The signal is received over a first symbol duration. A Primary Synchronization Code (PSC) correlator despreads the received signal in accordance with a PSC to output a PSC correlation value. A dot product calculator performs dot product calculation between the SSC correlation value and the PSC correlation value to output a correlation result of the SSC. A frame synchronization detector extracts frame synchronization information from the correlation result.
Claims20
A cell search apparatus for an asynchronous mobile communication system, comprising:
- a Secondary Synchronization Code (SSC) correlator which despreads a signal at every slot boundary in accordance with a z-sequence to output an SSC correlation value, wherein the signal is received over a first symbol duration;
- a Primary Synchronization Code (PSC) correlator which despreads the received signal in accordance with a PSC to output a PSC correlation value;
- a dot product calculator which performs a dot product calculation between the SSC correlation value and the PSC correlation value to output a correlation result of the SSC;
- and
- a frame synchronization detector which extracts frame synchronization information from the correlation result.
A cell search method for an asynchronous mobile communication system, comprising:
- despreading a signal at every slot boundary by correlating the signal with a z-sequence to output a Secondary Synchronization Code (SSC) correlation value, wherein the signal is received over a first symbol duration;
- despreading the signal by correlating the signal with a Primary Sequence Code (PSC) to output a PSC correlation value;
- performing a dot product calculation between the SSC correlation value and PSC correlation value to output a correlation result of the SSC;
- and
- extracting frame synchronization information from the correlation result.
Dependencies are inferred from the claim text.