US6603735B1

4G,3G

Title

PN SEQUENCE IDENTIFYING DEVICE IN CDMA COMMUNICATION SYSTEM

Application Number:

US19990386062

Publication Date:

05-08-2003

Current Assignee:

SAMSUNG

Family ID:

19549125

Application Date:

30-08-1999

Publication Country:

US

View on Espacenet

Priority Date:

29-08-1998

Declaring Company:

SAMSUNG

Abstract  Abstract

A PN sequence identifying device in a receiver in an asynchronous CDMA communication system. The receiver receives first OGCs on a primary sync channel and second OGCs on a secondary sync channel synchronized with the primary sync channel symbol by symbol. In the PN sequence identifying device a first OGC detector detects the first OGCs and obtains a first symbol energy. A first synchronizer receives the first symbol energy synchronizes chips symbols and slots and outputs a first sync signal. A second OGC detector upon reception of the first sync signal detects the second OGCs each time the first sync signal is received and obtains second symbol energies in base station identifying group units. A hopping pattern generator compares the first symbol energy with the second symbol energies determines whether null signs are in the second OGCs determines the order of the null signs if the null signs are present and generates a hopping pattern of the second OGCs. A second synchronizer synchronizes frames based on the hopping pattern and outputs a second sync signal. A PN sequence generator receives the first and second signals and the hopping pattern and generates a PN sequence.

Note:

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The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

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Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.

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