US9219522B2

5G,4G,3G

Title

CODE DIVISION MULTIPLE ACCESS TRANSMISSION ANTENNA WEIGHTING

Application Number:

US20100901616

Publication Date:

22-12-2015

Current Assignee:

Family ID:

Application Date:

11-10-2010

Publication Country:

US

Priority Date:

10-09-1999

Declaring Company:

Abstract  Abstract

A code division multiple access communication system has a base station with a plurality of transmitting antennas. From each transmitting antenna of the base station a pilot signal is transmitted having a different chip sequence than the other transmitting antenna. At a user equipment the transmitted pilot signals are received from each transmitting antenna. A weight adjustment is derived in response to the received transmitted pilot signals. The user equipment transmits the weight adjustment to the base station. The transmitted weight adjustment is received from the user equipment. A data signal is processed to produce a plurality of versions of the data signal. At least a portion of each processed data signal has a different chip sequence than the other processed data signal version. At least one processed data signal version is weighted by a weight value adjusted in response to the received transmitted weight adjustment. From each transmitting antenna a different one of the data signal versions is transmitted and the transmitted data signal versions are received at the user equipment.

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.