ZXSDR R8860 Technical Manual
Interface
Description
A3
Implements soft handoff between different BSCs (focusing on
the media plane).
A7
Implements soft handoff between different BSCs (focusing on
the control plane).
A8/A8d
Implements data transmission between
and
A9/A9d
Implements signaling transmission between BSS and PCF/PDC
A10/A10d
Implements data transmission between PCF and
, and
between PDC and PDS.
A11/A11d
Implements signaling transmission between PCF and PDSN, and
between PDC and PDS.
3.2 Um Interface
The Um interface is the air interface between Mobile Station (MS) and Base Transceiver
Station (
), complying with the IS-2000 ReleaseA standards and the IS-856-A standard.
CDMA2000 1x Um Interface
The CDMA2000 1x Um interface is composed of physical layer, data link layer and
uppermost layer.
shows the protocol reference model.
Figure 3-2 CDMA2000 1x Um Interface Protocol Reference Model
l
The physical layer is a bottom layer, covering various physical channels. It provides
basic radio channels to transmit information of upper layers.
3-2
SJ-20100722143906-001|08/30/2010
ZTE Proprietary and Confidential
Содержание ZXSDR R8860
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