Medium Access Control (MAC) and Physical Layer (PHY) - CISE

4-June-07 P1901_PRO_016_r0
⎣⎦ ⋅ denotes rounding to the closest lower or equal integer
1.5 DEFINITIONS
Active slave An Active slave regularly gets transmission opportunities via the reception of
data tokens from its master.
Bridge port Ports of the bridging block. There are three types of bridge ports: BPL ports,
non-BPL ports and the management port. BPL ports are the bridge ports that
are directly mapped onto the completed entries of the Port Solver Table. Non-
BPL ports are any other external ports of the node (e.g. Ethernet, USB,
WIFI,…). The management port is used for the exchange of management
messages between the bridging block and the layer management.
Bridging block A functional block which is placed above the convergence layer. This block
makes uses of standard 802.1D bridging to perform a layer-2 interconnection
between the bridge ports of a node.
Broadcast A transmission that is addressed to all the units of a layer-2 Local Area
Network. It corresponds to the transmission of an Ethernet frame with an
Ethernet Broadcast Destination address. It might be carried over the broadcast
port or can be transmitted consecutively over unicast ports.
Broadcast port Specific LLC port which value is 127. Transmission over the broadcast port
makes use of the HURTO modulation.
Burst A MAC Service Data Unit passed to the MAC layer by the LLC layer. A Burst
includes one or several complete or fragmented packets destined to the same
port.
Channel
Estimation Frame
A Channel Estimation MPDU which does not contain any data payload. A
Channel Estimation Frame starts with a Token Announce followed by a
specific sequence of symbols used for channel estimation. It is not terminated
by a token.
CPE A BPL unit which only behaves as a slave node.
Data Payload Burst payload which is adaptive modulated or HURTO modulated, depending
on the channel conditions.
Submission page 21 UPA-OPERA