Patent ID: 11923619
Assignee: QUALCOMM INCORPORATED
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. An apparatus for wireless communication at a device, comprising:
means for receiving at least one activation signal to activate one or more input port means of a plurality of input port means of one or more Butler matrices means;
means for outputting signals from all output port means of the one or more Butler matrices means based on one or more activated input port means, wherein the signals output from the output port means have varying phase shifts relative to each other;
a plurality of phase shifting means respectively coupled to the output port means of the one or more Butler matrices means for respectively phase shifting the signals output from the output port means, wherein the phase shifted signals are configured to have further varying phase shifts relative to each other and a phase difference between adjacent phase shifted signals;
means for receiving, at each one of a plurality of hybrid coupling means respectively coupled to the plurality of phase shifting means, a phase shifted signal from a respective phase shifting means, wherein each one of the plurality of hybrid coupling means is situated external to the one or more Butler matrices means and between the plurality of phase shifting means and a plurality of antenna element means for outputting a beam; and
means for outputting, from each one of the plurality of hybrid coupling means, two or more signals based on the phase shifted signal received from the respective phase shifting means, wherein the two or more signals have a phase shift between each other.