Message routing in wireless mesh networks
View Patent ↗Disclosed are methods and apparatuses related to the routing of communications in a wireless mesh network so as to provide improved range, reliability and/or throughput. At least some aspects of the techniques and apparatuses can be implemented in an intermediary node (relay node) on a wireless mesh network. The relay node and other devices on the wireless network may implement a form of multiple-input multiple-output (MIMO) communication, such as multi-user MIMO (MU-MIMO). The devices on the network can communicate in accordance with IEEE standard 802.11.
1. A wireless mesh node comprising:
a first multiple-input multiple-output (MIMO) transceiver chipset including circuitry which operates in a station mode to receive a transmission of information at a first frequency from an access point on a wireless mesh network during a first timeslot; and
a second MIMO transceiver chipset including circuitry which operates in an access point mode to forward the received information, from the mesh node at a second frequency to a station on the wireless mesh network during a second timeslot; and
further having the first and second MIMO transceiver chipsets configured to overhear packet receipt acknowledgements (ACKs) from the station for packets sent directly from the access point to the station, and to synchronize the transmission in the second timeslot of the information received from the access point with a retransmission of the same information from the access point itself, when the station does not acknowledge packet receipt directly from the access point.
2. A method for operating a wireless mesh node; and the method comprising:
receiving a multiple-input multiple-output (MIMO) transmission of information at a first frequency from an access point on a wireless mesh network during a first timeslot;
forwarding the received information from the mesh node as a MIMO transmission at a second frequency to a station on the wireless mesh network during a second timeslot;
overhearing packet receipt acknowledgements (ACKs) from the station for packets sent directly from the access point to the station; and
synchronizing the transmission in the second timeslot of the information received from the access point with a retransmission of the same information from the access point itself, when the station does not acknowledge packet receipt directly from the access point.