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Frequency hopping » History » Version 2

ptrkrysik, 09/06/2018 11:57 AM

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h1. Frequency hopping
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A BTS (Base Transceiver Station) on the GSM radio interface may use frequency hopping, that
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poses additional difficulty to transmit and receive GSM signals on the mobile side. The aim of this
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subtask is to implement frequency hopping for a GSM mobile station.
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* implementing transmission of GSM bursts according to a hopping sequence (deliverables:
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code + plot(/s) showing frequency of transmitted bursts)
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* implementing reception of GSM bursts that follows frequency hopping (deliverables: code +
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decoded messages from the signal with hopping)
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* extending the control interface between gr-gsm and Osmocom-BB with ability to
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send/change hopping parameters (deliverable: code)
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* testing the mobile station with a GSM BTS supporting frequency hopping (deliverable:
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protocol traces in Wireshark)
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