Access points, station and corresponding methods

Second station comprising circuitry configured to

• - listen to a training data unit transmitted by a first access point to which one or more first stations are associated for communicating with the first access point over a respective channel, the training data unit containing signaling information related to resource unit allocation and related to beamforming configuration determined by the first access point for use in subsequent communication with respective first stations, wherein the training data unit is transmitted with a beamforming configuration derived from the determined resource unit allocation and the determined beamforming configuration;
• - estimate channel and/or interference information based on a received training data unit;
• - transmit the estimated channel and/or interference information to a second access point with which the second station is associated to communicate over a channel.

Method for use by a first access point comprising

• - performing a sounding procedure with one or more first stations associated with the first access point and configured to communicate with the first access point over a respective channel to determine resource unit allocation and beamforming configuration for use in subsequent communication with respective first stations;
• and
• - transmitting a training data unit containing signaling information related to the determined resource unit allocation and related to the determined beamforming configuration, wherein the training data unit is transmitted with a beamforming configuration derived from the determined resource unit allocation and the determined beamforming configuration.

Method for use by a second station comprising

• - listening to a training data unit transmitted by a first access point to which one or more first stations are associated for communicating with the first access point over a respective channel, the training data unit containing signaling information related to resource unit allocation and related to beamforming configuration determined by the first access point for use in subsequent communication with respective first stations, wherein the training data unit is transmitted with a beamforming configuration derived from the determined resource unit allocation and the determined beamforming configuration;
• - estimating channel and/or interference information based on a received training data unit;
• - transmitting the estimated channel and/or interference information to a second access point with which the second station is associated to communicate over a channel.