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Update iqrecordplayer_usage.md

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Francois TABURET
2022-02-18 17:46:08 +00:00
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targets/ARCH/iqplayer/DOC/iqrecordplayer_usage.md
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# I/Q record-playback # I/Q record-playback
## using the iq recorder or iq player ## using the iq recorder or iq player
This feature provides I/Q record-playback as presented in the 4th OAI workshop. Tests have only been performed with a eNB, but the implementation should allow any softmodem executable to use the iq's record/player. This feature provides I/Q record-playback as presented in the 4th OAI workshop. The implementation allows any softmodem executable to use the iq's record/player.
The I/Q record/playback feature is briefly described hereafter, it allows you to: The I/Q record/playback feature is briefly described hereafter, it allows you to:
* record subframes received by the USRP board in a file while the system is operating (for example you can record a full UE connection/traffic/ disconnection sequence). Today the oai USRP device is the only one supporting the recording feature. * record subframes received by the USRP board in a file while the system is operating (for example you can record a full UE connection/traffic/ disconnection sequence). Today the oai USRP device is the only one supporting the recording feature.
* replay subframes from a file to operate the system (possibly in multiple loops if the recorded sequence is convenient from the logical point of view). * replay subframes from a file to operate the system (possibly in multiple loops if the recorded sequence is convenient from the logical point of view).