US6574265B2

5G,4G,3G

Title

CDMA communication system using an antenna array

Application Number:

US20020068659

Publication Date:

03-06-2003

Current Assignee:

INTERDIGITAL INC

Family ID:

23559015

Application Date:

06-02-2002

Declaring Company:

INTERDIGITAL INC

Publication Country:

US

Priority Date:

10-09-1999

View on Espacenet goto-link

Title

CDMA communication system using an antenna array

Application Number:

US20020068659

Family ID:

23559015

Publication Country:

US

Publication Date:

03-06-2003

Application Date:

06-02-2002

Priority Date:

10-09-1999

Current Assignee:

INTERDIGITAL INC

Declaring Company:

INTERDIGITAL INC

View on Espacenet goto-link

Abstract  Abstract

The invention provides for transmission and reception of a data signal using a plurality of transmitting antennas. Each antenna transmits a different reference signal having a pseudo random chip code sequence. A receiver filters each transmitted reference signal using that reference signals chip code. The filtered reference signals are weighted and combined. Each reference signals weight is adaptively adjusted in part on a signal quality of the combined signal. A data signal is transmitted such that different spread spectrum versions of the data signal are transmitted from each transmitting antenna. Each version having a different chip code identifier. Upon reception each version is filtered with its associated chip code. The filtered versions are weighted in accordance with the adjusted weights associated with the reference signal of the respective antenna.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

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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