Zte ZXMBW E9200, User Manual, Page: 27 / 63

Chapter 1 Error! Style not defined.
Confidential and Proprietary Information of ZTE CORPORATION 13
F
I G U R E
8 R 1 I
N T E R F A C E
P
R O T O C O L
S
T A C K
CS SAP
MAC SAP
PHY SAP
Service Specifice
convergence Sub-layer
(CS)
MAC Common Part
Sub-layer (MAC CPS)
Security Sub-layer
Physical Layer
(PHY)
Scope of Standard
Data/Control Plane
PH
Y
M
A
C
The R1 interface physical layer adopts Orthogonal Frequency
Division Multiplexing (OFDM) mode.
R6 Interface Description
This following describes the R6 interface including signaling
transmission mode and message format of the control plane.
The signaling between the BS and the ASN-GW is transmitted
through the R6 tunnel in the format of User Datagram Protocol
(UDP) plus the signaling format defined by NWG stage 3. The
media plane data is over the encapsulation tunnel protocol, in
which the UDP bears R6 signaling. Generic Routing
Encapsulation (GRE), Multiple Protocol Label Switching (MPLS)
and Virtual Local Area Network (VLAN) can be the bearer of R6
data.
The ASN-GW terminates the R6 tunnel from the BS. Various
encapsulation technologies such as GRE, MPLS and VLAN can be
adopted to implement the R6 tunnel. Different tunnel
granularities are allowable. The R6 data path supports
encapsulation protocol and tunnel granularity negotiation.
Figure 9 illustrates control plane message format of R6 interface.
Physical Layer
Signaling
Transmission
Mode
Control Plane
Message
Format