Trigger synchronized event for channel characterization within communication systems

摘要

A new protocol uses a trigger message to identify one or more symbols transmitted between a first and a second communication device. The first device generates and transmits a trigger message to the second device. This process may be initiated based on the first device receiving a measurement initiation message from another device (e.g., such as the second device or another device within the system). Then, the first device transmits a signal that includes those one or more symbols to the second device. Before or during transmission, the first device generates a first capture of those one or more symbols. After receipt of the transmission from the first device, the second device performs a second capture of those one or more symbols identified within the trigger message. Then, any device having the first and second captures can determine a characterization of the communication pathway between the first and second devices.

主权项

1. A communication device comprising:
a communication interface; and a processor, the processor and the communication interface configured to:
generate a trigger message after a measurement initiation message is received from a first other communication device, wherein the trigger message specifies a location of at least one orthogonal frequency division multiplexing (OFDM) data symbol to be transmitted from the communication device to a second other communication device via a communication pathway;transmit the trigger message to the second other communication device;generate a first capture that includes a first plurality of OFDM symbol samples of the at least one OFDM data symbol;transmit the at least one OFDM data symbol to the second other communication device via the communication pathway; andtransmit the first capture to the first other communication device for use to determine a characterization of the communication pathway based on the first capture and based on a second capture that includes a second plurality of OFDM symbol samples of the at least one OFDM symbol as performed by the second other communication device.