A wireless AR/VR headset may constantly report the exact coordination and orientation of itself and/or a user to a server. This information can be initially used at an access point (AP) to generate a look-up table (LUT). The LUT may include estimated channels from the AP to all spatial points that the headset may potentially sweep (e.g., in a certain application). During regular usage of AR/VR, the reported location of the headset is extracted in the AP to predict the channel at each point from the LUT and to update a multi-user MIMO steering matrix accordingly. A sounding process is then carried out only once (e.g., at the beginning when generating the LUT) and spatial beamforming is updated with no sounding process. This significantly reduces the latency of the network.
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Alizadeh, Ardalan; Kamalizad, Amir; and Silverman, Matt, "WIRELESS AUGMENTED REALITY (AR) / VIRTUAL REALITY (VR) CHANNEL PREDICTION", Technical Disclosure Commons, (June 20, 2018)