Patent Document ID: 20170104612
Application ID: 15385969
Patent Flag: 0

Claim One:
1. An electronic device having a first spatial multiplexing decoding capability, the electronic device comprising: circuitry configured to receive and process a data packet including, in sequential order, preamble signals, training signals and data signals, wherein the training signals are weighted by weights included in a weight matrix for spatial multiplexing, the weight matrix being set to weight the data signals to be transmitted on an Orthogonal Frequency-Division Multiplexing (OFDM) sub-carrier from another electronic device to the electronic device, the training signals being received from the another electronic device before the data signals on the sub-carrier, the preamble signals are for use of at least one of signal detection, synchronization or adjustment of gain at the electronic device, the training signals are used to estimate channel state, and a number of the training signals which are sequentially received is based on information associated with the spatial multiplexing decoding capability being transmitted to the another electronic device before receiving the data packet.