Adaptive channel control for data service delivery

Details Adaptive channel control for data service delivery Adaptive channel control for data service delivery

1997-10-10

1999-12-21

Kizou, Hassan

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

370468, H04Q 700

Patent

active

06005851&

ABSTRACT:
To transmit a stream of data packets over a physical channel, virtual channels for each data type (e.g. video, graphics, text) are created and mapped onto the physical channel based on a priority assigned to each virtual channel. Each virtual channel is also assigned a quality of services (QoS). A channel controller is allocated to each virtual channel. These channel controllers are connected to a dispatcher which receives the stream of data packets and distributes the data packets to the channel controllers based on the virtual channel to which the channel controllers are allocated. Should a channel controller encounter degradation in a transmission which reduces QoS below the specified values, a QoS parameter is adjusted. If this action does not achieve the specified QoS, the channel warns the dispatcher. The dispatcher, upon receipt of the warning, may, depending on the data type, reduce that channel controller's specified QoS or another channel's QoS. If the dispatcher takes no action, the controller degrades the data to achieve the necessary QoS.

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patent: 5608733 (1997-03-01), Vallee et al.
patent: 5619647 (1997-03-01), Jardine
patent: 5629933 (1997-05-01), Delp et al.
patent: 5765032 (1998-06-01), Valizadeh

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