US 11,115,813 B1Granted

Software defined wireless local area network for fault tolerance

AssigneeAmazon Technologies, Inc.

InventorsErik R. Parker, Trent Allie, Andrew Michael Johnson

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Abstract

Techniques are described for providing fault tolerance for wireless communications in a wireless network (e.g., wireless local area network (LAN)). A client establishes a first connection with a first access point (AP) of multiple APs via first radio of the client and a second connection with a second AP of the multiple APs via a second radio of the client. The first AP and the second AP are connected to the same wireless LAN. Data associated with a communication session is communicated via the first and second connections. In response to detecting that the second connection satisfies one or more criteria, a third connection is established with a third AP of the multiple APs via the second radio of the client.

Claims17

Dependent claims

A method for providing fault tolerance for wireless communications by an apparatus, comprising:

establishing a first connection with a first access point (AP) of a plurality of APs via a first radio of the apparatus;
establishing a second connection with a second AP of the plurality of APs via a second radio of the apparatus, wherein:
the first AP and the second AP are connected to a same wireless local area network (LAN);
the first AP is associated with a first physical path through a backhaul network of the wireless LAN;
and
the second AP is associated with a second physical path through the backhaul network;
communicating same data associated with a communication session via the first connection and the second connection, comprising:
establishing a first tunnel between the first radio and the wireless LAN via the first connection;
and
establishing a second tunnel between the second radio and the wireless LAN via the second connection, wherein the same data is communicated through the first tunnel and the second tunnel using a multipath transport protocol;
detecting a failure of the second connection with the second AP;
and
establishing, in response to the detection, a third connection with a third AP of the plurality of APs via the second radio of the apparatus while communicating data via the first connection with the first AP, wherein the third AP is associated with the second physical path through the backhaul network.

10 more elements

A computing device, comprising:

a first radio;
a second radio;
a processor;
and
a memory storing one or more applications, which, when executed on the processor, perform an operation comprising:
establishing a first connection with a first access point (AP) of a plurality of APs via the first radio;
establishing a second connection with a second AP of the plurality of APs via the second radio, wherein:
the first AP and the second AP are connected to a same wireless local area network (LAN);
the first AP is associated with a first physical path through a backhaul network of the wireless LAN;
and
the second AP is associated with a second physical path through the backhaul network;
communicating same data associated with a communication session via the first connection and the second connection, comprising:
establishing a first tunnel between the first radio and the wireless LAN via the first connection;
and
establishing a second tunnel between the second radio and the wireless LAN via the second connection, wherein the same data is communicated through the first tunnel and the second tunnel using a multipath transport protocol;
detecting a failure of the second connection with the second AP;
and
establishing, in response to the detection, a third connection with a third AP of the plurality of APs via the second radio, while communicating data over the first connection with the second AP, wherein the third AP is associated with the second physical path through the backhaul network.

15 more elements

Dependencies are inferred from the claim text.