Unformatted text preview: -66-15.81/3 rate FEC (forward error correction); 2/3 rate FEC; ARQ (automatic repeatrequest).15.9 Link control (LC):Used to manage the flow of packets over the link interface. TheLC control channel is mapped onto the packet header. This channel carries low-level link control information like ARQ, flow control, and payloadcharacterization. The LC channel is carried in every packet except in the ID packet,which has no packet header. Link manager (LM):Transports link managementinformation between participating stations. This logical channel supports LMPtraffic and can be carried over either an SCO or ACL link. User asynchronous(UA):Carries asynchronous user data. This channel is normally carried over theACL link, but may be carried in a DV packet on the SCO link. User isochronous(UI):Carries isochronous user data. This channel is normally carried over the ACLlink, but may be carried in a DV packet on the SCO link. At the baseband level, theUI channel is treated the same way as a UA channel. Timing to provideUI channel is treated the same way as a UA channel....
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This note was uploaded on 02/20/2012 for the course ENC 3250 taught by Professor Dr.timothycerner during the Fall '11 term at UNF.
- Fall '11