BEAM CHANGE AND SMOOTHING RECOMMENDATION IN MIXED MODE WLAN SYSTEMS

摘要

first wireless communication device includes a physical layer device configured to generate a data packet having a preamble mixed mode (mixed mode preamble). The mixed-mode preamble and a second part to be transmitted in all directions from a single stream (omnidirectionally) beam forming method using a first portion and a single stream or plurality of streams to be transmitted (beamformed manner). The mixed-mode preamble includes a signal field corresponding to the information about the data packet. The signal field is a first sub-represents the number of streams of the second part-of-field and the first sub-on the basis of the field, of whether to perform the beam changes (beam change) between the first section and the second section or whether a channel equalization on the second part (channel smoothing) the second sub-indicating whether to perform a - and a field. The transceiver is configured to transmit data packets having the mixed mode, a preamble to the second radio communication device from the first wireless communication device.