... release of Aglets.
1.1.3 Concordia
Concordia was developed by Mitsubishi Electric Information Technology Center, USA.
The main component of the Concordia system is the Concordia server that provides ... relevant pool. An empty pool indicates that the associated SCP cannot accept more
requests of that type from the SSP. Tokens are periodically assigned to pools by an MB-
DISTRIBUTOR, which use...
... of
downloading service programs is done off-line and does not impact signaling performance.
MAs enable both temporal distribution (i.e., distribution over time) and spatial distri-
bution (i.e., distribution ... between
different hosts, execute certain tasks, and collaborate with other agents.
2.3: MAs enable both temporal distribution (i.e., distribution over time) and spatial
distribution (...
... 2
Station 3
Station 4
Station 5
DIFS DIFS DIFS DIFS
Frame
Figure 3.3 Basic access mechanism.
be idle for a time interval greater than a Distributed Interframe Space (DIFS), the station
transmits ... coverage is divided into 4, 8, 12,
16, or 24 sectors.
The user accesses the network through Hybrid Fiber Radio (HFR), Radio To The
Building (RTTB) and Radio To The Curb (RTTC). In HFR, a Radio Fre...
... scheme with the shared medium. The medium access cycle is
divided into time slots that form CBR channels. Four types of channels are distinguished
by their purpose, direction, and bandwidth. ... slot is divided into a TA slot and an RA minislot. The
RA channel in ARCMA is capable of carrying additional information for different
classes of ATM service (e.g., CBR, VBR, etc.). This additional .....
... or without depending on any particular interaction model.
Intermediaries are essential parts of building distributed systems that scale to the Web.
Intermediaries can act in different capacities ... horizontal (between peers) dimension.
Intermediaries are essential parts of building distributed systems that scale on the
Web. As a result, XML Protocol must support intermediaries. Because XML P...
... message and a URI indicating a service. The
message is presented to the end user upon reception, and the user is given the choice
to either start the service indicated by the URI immediately or to ... URL)
Call indication
Play message
Service Indication
Hello
Figure 6.12 Voice mail.
WAP PUSH ARCHITECTURE 105
4. The user is notified about the SI by a message delivered with the SI. The user cho...
... used
to label media feature values associated with the presentation of data (e.g., display res-
olution, color capabilities, audio capabilities, etc.). To describe a profile, Conneg uses
predicate expressions ... matching is performed by finding the feature
set that matches two (or more) profiles. This involves finding the feature predicate that is
equivalent to the logical-AND of the predicates...
... solid walled building to several 1000 ft outdoors, in direct
Line of Sight (LOS). This is of a similar order of magnitude as the distance that can be
covered by the wired LAN in a building. However, ... Industrial, Scientific, and Medical
(ISM) band, the radio system must use a modulation technique called Spread Spectrum
(SS). In this mode a radio is required to distribute the signal across th...
... Radio
TETRA digital
Satellite Radio
Broadband Radio
Cellular Radio
Data Packet Radio
Trunked Radio
Paging Systems
Telephony
Cordless
1974: Private
MPT 1327Mobile Radio
D-Netz digital
1998: Iridium
Figure ... the digitalization of speech and the use of source and chan-
nel coding. Existing analogue radio systems are therefore being replaced more
and more by digital mobile radio networks. Moder...