Appeal No. 09/349,477 Page 2
Application No. 2003-1923
less sensitive to quality. On the other hand, a spreadsheet is insensitive to latency but
requires error-free delivery. (Spec. at 4.)
According to the appellant, the absence of an acceptable QoS coupled with a
sufficient bandwidth to qualify as broadband has impeded the deployment of a wireless,
broadband system. Delivery of a raw bandwidth over wireless media without
acceptable QoS would not benefit end users. Conversely, delivery of a high QoS at the
cost of a sufficient bandwidth would also not benefit end users. (Id. at 5.)
Accordingly, the appellant's invention is a wireless point-to-multipoint ("PtMP")
telecommunications system. Figure 3B of his specification shows that the PtMP system
comprises a wireless base station (302) and a host workstation (136a) connected to a
data network (142). Subscriber customer premise equipment ("CPE") are coupled to
the wireless base station via a shared, wireless bandwidth (i.e., a wireless
communication medium between 292d and 290d). Subscriber workstations (120d and
122d) are coupled to the subscriber CPE via a local area network ("LAN"). (Appeal Br.
at 2-3.)
The invention uses a "packet-centric" protocol to transfer data via the data
network and the shared, wireless bandwidth. A packet-centric protocol does not use
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