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:
Aug. 07, 2012
Filed:
Oct. 26, 2009
Mattias Wennstrom, Kista, SE;
Mattias Wennstrom, Kista, SE;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
The present disclosure relates to the management of control information in a multi-user multi-input multi-output system with a base unit and two or more user units, where respective user unit sends an index representing a vector from a user codebook belonging to the user unit. The base unit co-schedules compatible user units to simultaneously share one time-frequency resource by selecting a precoding matrix from a base unit codebook based on the indices received from co-scheduled user units, according to a predefined function. The base unit transmits control information regarding selected precoding matrix to each co-scheduled user unit. The predefined function is known to each user unit and the control information to each user unit only contains information on the index from every other user unit.