Method and system for optimal frequency planning for an integrated communication system with multiple receivers

US8081929B2 · kind B2 · utility

Assignee

• Broadcom Corporation · US

Inventors

• Brima Ibrahim · Aliso Viejo, US
• Alireza Zolfaghari · Sugar Land, US
• Steven Deane Hall · Olivenhain, US
• Kambiz Shoarinejad · Los Angeles, US
• Bojko Marholev · Irvine, US

Key dates

• Filing date: Jun 5, 2008
• Grant date: Dec 20, 2011
• Expiry date: Aug 5, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B1/30
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

Methods and systems for optimal frequency planning for an integrated communication system with multiple receivers may include adjusting a center frequency of a low IF signal to reduce interference by a second order interference signal. The center frequency may be adjusted to avoid high power portions of the second order interference signal. The interference level corresponding to a center frequency may be determined by, for example, a SNR of the low IF signal, or by determining a BER for the low IF signal. The center frequency of the low IF signal may be dynamically adjusted to keep second order interference level at an acceptable level. Adjusting the center frequency of the low IF signal may also comprise keeping the low IF signal from being blocked by a DC component of the second order interference signal.