Techniques (e.g., method, apparatuses, etc.) for permitting communications, e.g., optical communications are described.
In one example, a first communication apparatus for the communication with a second communication device may obtain a channel state information from the reception of one or more reference signals and/or beacon signals from one or more frontends of the second apparatus. The first communication apparatus may transform the channel state information from a frequency domain to a time domain, to obtain a time domain channel state information. The first communication apparatus may encode the time domain channel state information. The first communication apparatus may transmit the time domain channel state information to one or more frontends. The first communication apparatus may transmit channel information for association and updated channel information for network coordination in a contention access period and collision-free period, CFP, respectively.