Zte ZXMBW E9230, User Manual

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Chapter 1 Product Overview
T
ABLE
7 R1 M
ESSAGE
F
ORMAT
Content Description
Message Type
The first field of every management message is
Message Type . To know the value of this field,
refer to the content of MAC management message
in the protocol.
Non-TLV field
This field is sequenced strictly according to the
definition of message format. The corresponding
values of various fields are sorted strictly accord-
ing to the sequence defined by the message for-
mat.
TLV field
This field is a triple field, that is, type-length-
value. The message sorts the triple of such field
according to the actual situation.
Protocol Stack The R1 interface contains MAC layer and physical layer. The MAC
layer contains three sub-layers, that is, service-specific Conver-
gence Sub-layer (CS), MAC Common Part Sub-layer (MAC CPS)
and security sub-layer in the top-down sequence.
CS sub-layer: The CS sub-layer converts/maps the external data
received by CS-SAP into MAC SDU and transmits the data to MAC
CPS through MAC SAP. The sub-layer classifies external Service
Data Units (SDUs) and associates them with proper SFIDs and
CIDs. It supports the payload head compression function and pro-
vides various service-specific convergence sub-layer specifications
for different external protocol interfaces.
MAC CPS sub-layer: The MAC CPS sub-layer does not resolve the
payload at the CS sub-layer. The MAC CPS sub-layer supports
the core functions of the MAC layer, including bandwidth request,
connection setup and maintenance. It receives data of various
CS sub-layers through the MAC SAP and classifies these data by
different MAC connections. Its QoS is applied to transmission and
scheduling above the physical layer.
� Security sub-layer: The MAC layer contains an independent
security sub-layer that provides authentication, safe key ex-
change and encryption.
� The physical layer has multiple specifications, each of which
corresponds to a specific frequency range and application.
Figure 10 illustrates the R1 interface protocol stack.
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