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

4-June-07 P1901_PRO_016_r0
RUN_CAP_MSG message
This message shall contain information about the capabilities that a node is running at that time. Additionally, by
means of the MESSAGE_MODE field, a change of previous sent running capabilities can be indicated. Four are the
supported message modes that apply only to a running capabilities set from a concrete node:
Info mode with ACK: Indicates that the following sections contain information about the maximum and running
capabilities, and that an ACK is required for this message.
Info mode without ACK: Indicates that the following sections contain information about the maximum and running
capabilities, and that NO ACK is required for this message.
Change Mode with ACK: Indicates that the running capabilities have changed and are sent in the following section.
An ACK of this message is expected by the sender.
Change Mode without ACK: Indicates that the running capabilities have changed and are sent in the following
section. No ACK of this message is expected by the sender.
The running capabilities are transmitted by means of a field that indicates what is the default value for the
capabilities that are not included explicitly in this message (highest possible capability of the node or lower possible
capability of the node), and several two fields groups where the first one is a reference to a capability in the NCT
(including section and position) and the second field is the value related to this capability. The number of groups
describing each of the running capabilities that are different from the default value shall be set in the
NUM_RUN_CAP field.
If a value for a capability is longer than a byte, the same reference shall be sent followed by the first byte, then the
same reference followed by the second byte and so on, up to complete the number of desired bytes for the capability
value.
In the following figure it is shown an example of a Running Capability section carrying running capabilities from N
nodes, where the first set contain an explicit description of three running capabilities and the Nth set contains a
description of four running capabilities.
MSG_TYPE = 0x2
#CAP_SET = N
LMAC_SET
MSG__MODE
DEF_MODE
#RUN_CAP
CAP_REF_1
CAP_VALUE_1
CAP_REF_2
CAP_VALUE_2
...
Figure 105 Example of Running Capability Section
CAP_REF_i
CAP_VALUE_i
Submission page 226 UPA-OPERA
LMAC_SET
MSG__MODE
DEF_MODE
#RUN_CAP
CAP_REF_1
CAP_VALUE_1
CAP_REF_2
CAP_VALUE_2
...
CAP_REF_i
CAP_VALUE_1