Patent ID: 8160126
Filing Date: 2012-04-17
Classification: H04B,H04L,H04M

Abstract:
1. A method for Upstream Power Back-Off (UPBO) in a Digital Subscriber Line (DSL), wherein the method comprises: collecting subscriber line information, wherein the subscriber line information comprises configuration information, and at least one of subscriber line operating information and topology information, the subscriber line operating information comprises subscriber line attenuation Hlog information, the topology information comprises a subscriber line length, and the configuration information comprises template Profile information and bandplan information; determining a reference line length according to the subscriber line information; and obtaining UPBO parameters of each upstream band of each subscriber line according to the reference line length, so that Customer Premise Equipment (CPE) executes an UPBO process on the corresponding upstream band of the subscriber line below a maximal close frequency point according to the UPBO parameters comprising an original point parameter, a back-off slope parameter, and the maximal close frequency point UPBOFMAX.