The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 12, 2015
Filed:
Sep. 27, 2011
Gaurav R. Nukala, Sunnyvale, CA (US);
Venkatasubramanian Ramasamy, San Jose, CA (US);
Giri Prassad Deivasigamani, San Jose, CA (US);
Gaurav R. Nukala, Sunnyvale, CA (US);
Venkatasubramanian Ramasamy, San Jose, CA (US);
Giri Prassad Deivasigamani, San Jose, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Transmission capacity for a control channel sent to multiple mobile wireless devices in a wireless network is increased by transmitting the control channel using multi user multiple input multiple output transmissions (MU MIMO). Received signal quality measured at mobile wireless devices in a radio sector are communicated to a radio node and used to determine one or more sets of mobile wireless devices to share transmission of control channel elements on the same time and frequency resource element. The radio node indicates the use of MU MIMO and the selection of precoding matrices to each of the mobile wireless devices in the each set of mobile wireless devices.