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:
Nov. 26, 2013
Filed:
Jun. 14, 2011
Klas Johansson, Sundbyberg, SE;
Niilo Musikka, Brooma, SE;
Henrik Nyberg, Stockholm, SE;
Anders Wallén, Ystad, SE;
Klas Johansson, Sundbyberg, SE;
Niilo Musikka, Brooma, SE;
Henrik Nyberg, Stockholm, SE;
Anders Wallén, Ystad, SE;
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
Abstract
The invention relates to a radio base station () and method in a radio base station of a cellular communications system () for controlling self-interference. The radio base station () supports communication with a user equipment () using multiple uplink and multiple downlink carriers (). The method comprises detecting a degraded downlink performance on a downlink carrier () due to self-interference by determining that a set of predefined conditions applies. The method further comprises executing, in response to detection of the degraded downlink performance, an action to reduce self-interference between the uplink and downlink carriers (). The action is one of: uplink scheduling to reduce self-interference, deactivation of a secondary uplink carrier (), deactivation of a secondary downlink carrier (), and initiation of carrier reconfiguration to reduce self-interference. Accordingly, benefits of using multi-carrier operation may be balanced against a possible associated drawback of degraded downlink performance due to self-interference.