PROTOCOL FOR COOPERATION COMMUNICATION BETWEEN ACCESS POINTS IN OVERLAPPED BASIC SERVICE SET ENVIRONMENT

摘要

Disclosed is a protocol receiving data through cooperative communications between access points in an overlapping basic service set (BSS) environment. In accordance with one aspect of the present invention, a cooperative beamforming communications method may include the steps of: negotiating, by a first access point, a cooperative beamforming transmission with a second access point that has an overlapping BSS area with the first access point; transmitting, by the first access point, a cooperative transmission request frame to the second access point; receiving, by the first access point, a cooperative transmission response frame that the second access point transmitted to the first access point in response to the cooperative transmission request frame; and performing, by the first access point, the cooperative beamforming transmission with the second access point for the duration of the cooperative beamforming transmission determined through the negotiation, when transmission of the CTS is completed and then a predetermined time interval elapses.