Marvell International Limited

Marvellworld Trade Ltd.

Ronak Anjan Chokshi

Gladys Yuen Yan Wong

Deepak Jain

Robert Mack

Sameer Bidichandani

Kapil Chhabra

Milind Kopikare

Zhenyu Zhang

Li-Fu Jeng

Todd Tokubo

Ken Yeung

George Lee

Timothy Li

Ninh Tran

Ashish Kumar Shukla

Rajesh Shreeram Bhagwat

Todd Wheeler

Myung Cheol Kim

Jigang Chen

Quality of service for mesh networks is described. In embodiment(s), communication data can be prioritized as priority data and/or non-priority data for communication from a source node to a destination node in a mesh network. A first route in the mesh network can be determined to communicate the priority data from the source node to the destination node based on a minimum number of intermediate nodes via which the priority data is communicated. Additionally, a second route in the mesh network can be determined to communicate the non-priority data from the source node to the destination node based on a highest bit rate to communicate the non-priority data. A time duration to communicate the priority via the first route is less than a time duration to communicate the non-priority data via the second route.

Quality of service for mesh networks

In response to determining that a Bluetooth inquiry phase or the Bluetooth paging phase will begin, a power save indicator signal is sent from a first communication device to a second communication device prior to a start of the Bluetooth inquiry phase or the Bluetooth paging phase. A gap between a first Bluetooth communication slot and a second Bluetooth communication slot is determined, and a time period within the gap is determined, where an end of the time period occurs at a defined amount of time prior to a start of the second Bluetooth communication slot. During the time period, one or more power save poll messages are sent from the first communication device to the second communication device, each first power save poll message prompting the second communication device to transmit a respective first WLAN packet to the first communication device.

Method and apparatus for maintaining a wireless local area network connection during a bluetooth inquiry phase or a bluetooth paging phase

An integrated circuit for controlling a gain of an LNA to be applied to (i) a first signal from a first communication device, and (ii) a second signal from a second communication device, wherein (i) the first signal conforms to a first communication protocol, and (ii) the second signal conforms to a second communication protocol, includes LNA gain adaptation hardware. The LNA gain adaptation hardware is configured to determine a first signal strength indicator corresponding to a signal strength of the first signal, determine a second signal strength indicator corresponding to a signal strength of the second signal, and control the gain of the LNA based on at least (i) the first signal strength indicator and (ii) the second signal strength indicator.

LNA gain adaption based on received signal strength of signals conforming to different communication protocols

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.

Bluetooth and WLAN coexistence architecture having a shared low noise amplifier

In response to determining that a Bluetooth inquiry phase or a Bluetooth paging phase is beginning, a power save (PS) mode signal is sent from a first device to a second device via a wireless local area network (WLAN) communication link, wherein the PS mode signal indicates that the first device is in a WLAN PS mode. A PS poll signal is sent from the first device to the second device via the WLAN communication link in a gap between Bluetooth inquiry phase message transmissions during the Bluetooth inquiry phase or between Bluetooth paging phase message transmissions during the Bluetooth paging phase.

Method and apparatus for maintaining a wireless local area network connection during a Bluetooth inquiry phase or a Bluetooth paging phase

An apparatus has first and second wireless communication modules with respective first and second wireless communication signaling terminals. An arbiter is coupled to receive a request for access to an antenna from one of the first and second wireless communication modules. The arbiter is operable to cause the antenna to be coupled to one of the first and second wireless communication signaling terminals in response to the request, and a coexistence module is operable to prevent the arbiter from receiving a request from the second wireless communication module to thereby allow a communication of the first wireless communication module.

Apparatus and method for coexistent wireless and bluetooth communication employing interruption of arbitration requests to allocate use of a shared antenna

Quality of service for mesh networks is described. In embodiment(s), communication data can be prioritized as priority data and/or non-priority data for communication from a source node to a destination node in a mesh network. A first communication route in the mesh network can be determined to communicate the priority data from the source node to the destination node based on a minimum number of intermediate nodes via which the priority data is communicated. Additionally, a second communication route in the mesh network can be determined to communicate the non-priority data from the source node to the destination node based on a highest bit rate to communicate the non-priority data. A time duration to communicate the priority via the first communication route is less than a time duration to communicate the non-priority data via the second communication route.

A first low noise amplifier (LNA) applies a gain to both (a) signals conforming to a first communication protocol and (b) signals conforming to a second communication protocol. A second LNA applies a gain to the signals conforming to the first communication protocol. A third LNA applies a gain to the signals conforming to the second communication protocol is provided. A first signal strength indicator corresponding to a signal strength of a first signal, conforming to the first communication protocol, is determined. A second signal strength indicator corresponding to a signal strength of a second signal, conforming to the second communication protocol, is determined. The gain of the first LNA is controlled based on (i) the first signal strength indicator and ii) the second signal strength indicator. The gains of the second and third LNAs are controlled based on the first and second signal strength indicators, respectively.

A method and system for controlling a gain of a low noise amplifier to be applied to i) a first signal from a first communication device, and ii) a second signal from a second communication device, in which i) the first signal conforms to a first communication protocol, and ii) the second signal conforms to a second communication protocol. The method includes determining a first signal strength indicator corresponding to a signal strength of the first signal; determining a second signal strength indicator corresponding to a signal strength of the second signal; and controlling the gain of the low noise amplifier based on at least i) the first signal strength indicator and ii) the second signal strength indicator.

Low noise amplifier gain adaption based on a received signal strength indication of Bluetooth and WLAN signals

A radio frequency (RF) front-end configured to share transmissions and receptions of Bluetooth signals and WLAN signals. In an exemplary embodiment, the RF front-end comprises a first path coupled between an antenna and a transceiver dedicated to transmissions of the WLAN signals; a second path coupled between the antenna and the transceiver dedicated to simultaneous receptions of the Bluetooth signals and the WLAN signals; and a third path coupled between the antenna and the transceiver. The third path may be dedicated to transmissions only of the Bluetooth signals when a WLAN link is active; and transmissions and receptions of the Bluetooth signals when the WLAN link is active and in a power save state, and when the WLAN link is inactive.

A beginning of a Bluetooth inquiry phase or a Bluetooth paging phase is determined. In response to determining that the Bluetooth inquiry phase or the Bluetooth paging phase is beginning, a power save (PS) mode signal is sent from a first device to a second device via a wireless local area network (WLAN) communication link, wherein the PS mode signal indicates that the first device is in a WLAN PS mode. A PS poll signal is sent from the first device to the second device via the WLAN communication link in a gap between Bluetooth inquiry phase message transmissions during the Bluetooth inquiry phase or between Bluetooth paging phase message transmissions during the Bluetooth paging phase.

A method and system for adapting low noise amplifier gain comprise determining a Bluetooth received signal strength indication of Bluetooth signals transmitted by a Bluetooth peer; determining a WLAN received signal strength indication of WLAN signals transmitted by a WLAN peer; comparing the Bluetooth received signal strength indication to a predetermined Bluetooth signal strength threshold to determine a Bluetooth peer distance of the Bluetooth peer; comparing the WLAN received signal strength indication to a predetermined WLAN signal strength threshold to determine a WLAN peer distance of the WLAN peer; and controlling a gain of a low noise amplifier to be applied to the Bluetooth signals and the WLAN signals based on the Bluetooth peer distance and the WLAN peer distance. In a further embodiment, the gain may be controlled by using a bypass signal to place the low noise amplifier into at least one of (a) a bypass mode in which the Bluetooth signals and the WLAN signals pass through the low noise amplifier without the gain being applied, and (b) a fixed gain mode in which the gain is applied to the Bluetooth signals and the WLAN signals. In another embodiment, the gain may be controlled by using the bypass signal to control an internal WLAN low noise amplifier and an internal Bluetooth low noise amplifier.

Growing community of inventors

Fremont, CA, United States of America

Ronak Anjan Chokshi