Hewlett Packard Enterprise Development LP

Sanjib Sur

Ioannis Pefkianakis

Souvik Sen

Yunze Zeng

In some examples, a system can include a processing resource and a memory resource. The memory resource can store machine readable instructions to cause the processing resource to: (1) collect feedback from a physical (PHY)-layer of a client at a plurality of access points, before the client is associated with any one of the plurality of access points and (2) select an access point using a client channel correlation value calculated from the PHY-layer feedback, wherein the selected access point serves the client and a client group concurrently using precoding.

Access point selection

In some examples, a computing device may comprise a processing resource and a memory resource storing machine-readable instructions to cause the processing resource to proactively identify a line-of-sight (LOS) blockage of a network signal transmitted on a millimeter-wave link, and reroute network traffic from the millimeter-wave link to a wireless local area network (WLAN) transmission channel in response to identifying the LOS blockage of the network signal.

Reroute network traffic from millimeter-wave link to WLAN transmission

An example communications device includes communications circuitry and control circuitry. The communications circuitry may wirelessly communicate with client devices. The control circuitry may determine signal-to-interference-plus-noise ratios (SINRs) for the client devices based on compressed client-side channel state information received from the client devices. The control circuitry may assign the client devices to multi-user-multiple-input-multiple-output (MU-MIMO) groups based on the SINRs.

MU-MIMO group assignment

Example system may comprise a network controller including a processing resource and instructions executable by the processing resource to: receive, from a first access point in a network, properties of a first millimeter Wave (mmWave) signal path between the first access point and a computing device associated with the first access point; predict, utilizing the properties of the first mmWave signal path, properties of a second mmWave signal path between a second access point in the network and the computing device; predict, utilizing the predicted properties of the second mmWave path, a beam strength for the second access point; and assign a rank to the second access point according to the beam strength.

Access point beam strength rankings

An example system may comprise a millimeter wave (mmWave) transmitting device including instructions executable to: identify a plurality of mmWave signal transmission paths from the mmWave transmitting device to a receiving device; collect a channel measurement for each beam of a first portion of beams available at the mmWave transmitting device at each signal transmission path of the plurality of mmWave signal transmission paths; determine a plurality of properties of each signal transmission path of the plurality of mmWave signal transmission paths utilizing the corresponding channel measurements; predict, based on the plurality of properties, a signal metric for a second portion of the beams; and select, based on the predicted signal metric, a beam from the beams to be utilized to transmit a signal to the receiving device.

Selecting beams based on channel measurements

An example communications device includes communications circuitry and control circuitry. The communications circuitry may wirelessly communicate with client devices. The control circuitry may determine signal-to-interference-plus-noise ratios (SINRs) for the client devices based on compressed client-side channel state information received from the client devices. The control circuitry may select, based on the SINRs and in consideration of multiple possible bandwidth settings, a set of multi-user-multiple-input-multiple-output (MU-MIMO) groups each with an assigned bandwidth setting.

MU-MIMO group selection

Examples described herein relate to adapting a radio of a millimeter-wave device. In some such examples, the millimeter-wave device is to include a first radio to operate at a first beam direction based on a first set of channel state information (CSI). The millimeter-wave device is also to include a second radio to measure a second set of CSI. The millimeter-wave device is then to include a set of instructions to adapt the first radio to operate at an adapted beam direction based on a third set of CSI. The third set of CSI is to include a signal strength at the adapted beam direction that the millimeter-wave device is to determine based on the first set of CSI and the second set of CSI.

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Ripon, WI, United States of America

Sanjib Sur