US 2014/0227984 A1Published application

Bluetooth and wlan coexistence architecture having a shared low noise amplifier

AssigneeMarvell World Trade Ltd.

InventorsNinh Tran, Timothy Li, Gladys Yuen Yan Wong, George Lee, Todd Tokubo, Ken Yeung, Ronak Anjan Chokshi

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Abstract

A radio frequency front-end includes a first path, second path, and third path each coupled between an antenna and a transceiver. The first path is configured to convey WLAN signals from the transceiver to the antenna for transmission. The second path is configured to convey received Bluetooth signals and received WLAN signals from the antenna to the transceiver. The third path is configured to convey Bluetooth signals from the transceiver to the antenna for transmission when a WLAN link is active and not in a power save state, and is configured to convey received Bluetooth signals from the antenna to the transceiver, and Bluetooth signals from the transceiver to the antenna for transmission, when the WLAN link is either inactive or in the power save state.

Claims1

Dependent claims

A radio frequency (RF) front-end comprising:

a first path coupled between an antenna and a transceiver, the first path configured to convey WLAN signals from the transceiver to the antenna for transmission;
a second path coupled between the antenna and the transceiver, the second path configured to convey received Bluetooth signals and received WLAN signals from the antenna to the transceiver;
and
a third path coupled between the antenna and the transceiver, the third path configured to
convey Bluetooth signals from the transceiver to the antenna for transmission when a WLAN link is (i) active and (ii) not in a power save state, and
convey (a) received Bluetooth signals from the antenna to the transceiver, and (b) Bluetooth signals from the transceiver to the antenna for transmission, when the WLAN link is either (i) inactive or (ii) in the power save state.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/255,291Filed 17 Apr 2014
Priority: 18 Mar 2008
Published: 14 Aug 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

H04B 1/48
Transmit/receive switching: in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
H04B 1/006
With common antenna for more than one band: using switches for selecting the desired band
H04B 1/406
Using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency: with more than one…
H04W 52/287
Using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non-transmission: when the channel is in stand-by

Family

Application61/037,560Us provisional application · filed 18 Mar 2008
Application12/405,594Continuation · filed 17 Mar 2009
Application13/448,899Continuation · filed 17 Apr 2012
Application14/255,291Continuation
US 2009/0239471 A1Published application
US 2012/0201234 A1Published application
US 8,165,544 B2Related patent
US 8,706,065 B2Related patent
US 9,209,855 B2Related patent
US 2014/0227984 A1This patent

From the US filing history. Foreign family members aren’t listed.