Shared LNA and PA gain control in a wireless device

US8112053B2 · kind B2 · utility

Assignee

• Broadcom Corporation · US

Inventors

• Prasanna Desai · Elfin Forest, US
• Mark Gonikberg · Los Altos Hills, US
• Brima Ibrahim · Aliso Viejo, US
• Luis Javier Gutierrez · Houston, US
• Sreenivas Karanam · Bengaluru, IN
• Thomas Varghese · San Mateo, US

Key dates

• Filing date: May 22, 2007
• Grant date: Feb 7, 2012
• Expiry date: Feb 21, 2029

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B7/0691
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A wireless device includes at least one antenna, a plurality of shared signal path components coupled to the at least one antenna, the plurality of shared signal path components including a shared adjustable gain element, e.g., Low Noise Amplifier (LNA), Power Amplifier (PA), etc., a first wireless interface, e.g. Wireless Local Area Network interface coupled to the plurality of shared signal path components, and a second wireless interface, e.g., Wireless Personal Area Network interface, coupled to the plurality of shared signal path components. During a first operational period, the first wireless interface controls gain of the shared adjustable gain element and during a second operational period that differs from the first operational period, the second wireless network interface controls gain of the shared adjustable gain element. With another embodiment the first wireless interface and/or the second wireless interface each includes shared adjustable gain elements for transmit and receive diversity.