CLEAR CHANNEL ASSESSMENT (CCA) IN WIRELESS NETWORKS

摘要

This disclosure describes methods, apparatus, and systems related to providing a source device more degrees of freedom in the performing CCA, and in using CCA for communicating with neighboring devices. Before accessing the channel, a source device may need to perform carrier sense multiple access with collision avoidance (CSMA/CA), the CSMA/CA additionally comprising CCA. In various embodiments, CCA can be performed either using quasi-omnidirectional receiving antenna(s), or using directional receiving antenna(s). In one embodiment, one or more requisite conditions for performing directional CCA can be specified. In another aspect, sensitivity level adjustments can be provided when performing directional CCA and/or quasi-omnidirectional CCA.

主权项

1. A device, comprising:
at least one memory that stores computer-executable instructions; and at least one processor of the one or more processors configured to access the at least one memory, wherein the at least one processor of the one or more processors is configured to execute the computer-executable instructions to:
determine one or more first spatial beams between the device and a second device and determine one or more second spatial beams between the device and a third device to associate with the second device and the third device in a neighborhood of the device,determine a direction and aperture angle for transmission to the second device and a direction and aperture angle for reception from the second device;cause to send data to the second device;perform a directional clear channel assessment (CCA) with the second device and a quasi-omnidirectional CCA with the third device to determine a status associated with the second device and a status associated with the third device.