Advanced Bionics Naída CI Q90 Mode D'emploi page 21

Quality of Service (QoS) for HiBAN
Wireless Link
HiBAN link enables communication between
two processors and their paired accessories. A bit error
rate better than 10-3 is specified for all use cases at
their nominal operating distance (See Table on previous
page for the operating distances) for reliable audio
and message transfer. For the remote control case, this
QoS is further enhanced by redundant transmission of
control messages. Each remote control command is
transmitted 6 times, although only one successful
transmission is needed for communication.
Wireless Security Measures
Security of the HiBAN link is ensured through the
following measures:
1.
A proprietary network protocol which creates and
manage the devices in the network.
2.
A unique pairing ID programmed to the
processor and its accessories at fitting time which is
validated during each transmission.
3.
A cyclic redundancy check (CRC) which
ensures the integrity of remote control data.
4.
A system architecture that isolates the
processor's critical functionality (patient-
specific parameters) from HiBAN network.
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