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US 5,684,791 AGranted
Data link control protocols for wireless ATM access channels
AssigneeNEC USA, Inc.
InventorsDipankar Raychaudhuri, Hai Xie, Ruixi Yuan
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AssigneeNEC USA, Inc.
InventorsDipankar Raychaudhuri, Hai Xie, Ruixi Yuan
Estimating the term…
A data link control procedure for wireless ATM access channels based on a dynamic TDMA/TDD framework provides integrated ATM services including available bit-rate (ABR) data and constant/variable bit-rate (CBR/VBR) voice or video through the addition of wireless-specific medium access control and data link control protocol layers between the physical and ATM network layers. Generally, a data link control is used to insulate the ATM network layer from wireless channel impairments by selective retransmission of erroneous or lost cells before they are released to the ATM layer. The data link control methods disclosed use the on-demand ABR burst transmission capability of the dynamic TDMA channel to retransmit unacknowledged cells in available slots not allocated to service data. Specific error recovery procedures for both (asynchronous) ABR and (isochronous) CBR services are provided.
A wireless ATM communication system including a base station and at least one remote station for transmitting data packets between a base station and a remote station via wireless link comprising:
A wireless ATM communication system including a base station and at least one remote station for transmitting data packets between a base station and a remote station via wireless link comprising:
Dependencies are inferred from the claim text.