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▀ Features and Functionality - Base Software
3GPP TS 25.468 V9.2.0 (2010-06): 3rd Generation Partnership Project; Technical Specification Group Radio
Access Network; UTRAN Iuh Interface RANAP User Adaptation (RUA) signalling (Release 9)
3GPP TS 25.469 V9.2.0 (2010-06): 3rd Generation Partnership Project; Technical Specification Group Radio
Access Network; UTRAN Iuh interface Home Node B (HNB) Application Part (HNBAP) signalling (Release
9)
IETF RFC 2474, Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers
IETF RFC 4594, Configuration Guidelines for DiffServ Service Classes
IETF RFC 4960, Stream Control Transmission Protocol
In a fixed line-mobile convergence scenario, the user data and signaling traffic from a UE is forwarded by an HNB to
HNB-GW over IuH interface. IP is used as network layer for IuH. RTP/ RTCP or GTP over UDP/IP form transport for
user data. SCTP/IP is used for control signaling over IuH.
These data and control packets traverse public Internet before reaching HNB-GW and vice-a-versa for the downlink
traffic. RTP typically carries jitter-sensitive real-time media data such as voice and video. RTCP carries media
reception/ transmit feedback that is not delay sensitive. GTP carries generic, non-media data. These various traffic
types, each, deserve different QoS handling by the IP nodes they traverse between HNB and HNB-GW. Thus DSCP
codes are assigned in the IP headers of the traffic such that intermediate IP nodes can provide differentiated QoS
treatment to the traffic for an acceptable end-user experience.
HNB-GW supports DSCP marking of the traffic on IuH for downlink traffic towards HNB and for uplink traffic
towards MSC when IP transport is used for IuCS or IuPS.
QoS Management with DSCP Marking
Differentiated Services Code Point (DSCP) marking over IuH interface support in 3G UMTS HNB Access Network is
provided on HNB-GW for traffic quality management in accordance with following standards:
3GPP TS 25.414 V9.0.0 (2009-12): 3rd Generation Partnership Project; Technical Specification Group Radio
Access Network; UTRAN Iu interface data transport and transport signalling (Release 9)
3GPP TS 25.468 V9.2.0 (2010-06): 3rd Generation Partnership Project; Technical Specification Group Radio
Access Network; UTRAN Iuh Interface RANAP User Adaptation (RUA) signalling (Release 9)
3GPP TS 25.469 V9.2.0 (2010-06): 3rd Generation Partnership Project; Technical Specification Group Radio
Access Network; UTRAN Iuh interface Home Node B (HNB) Application Part (HNBAP) signalling (Release
9)
IETF RFC 2474, Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers
IETF RFC 4594, Configuration Guidelines for DiffServ Service Classes
IETF RFC 4960, Stream Control Transmission Protocol
In a fixed line-mobile convergence scenario, the user data and signaling traffic from a UE is forwarded by an HNB to
HNB-GW over IuH interface. IP is used as network layer for IuH. RTP/ RTCP or GTP over UDP/IP form transport for
user data. SCTP/IP is used for control signaling over IuH.
These data and control packets traverse public Internet before reaching HNB-GW and vice-a-versa for the downlink
traffic. RTP typically carries jitter-sensitive real-time media data such as voice and video. RTCP carries media
reception/ transmit feedback that is not delay sensitive. GTP carries generic, non-media data. These various traffic
types, each, deserve different QoS handling by the IP nodes they traverse between HNB and HNB-GW. Thus DSCP
codes are assigned in the IP headers of the traffic such that intermediate IP nodes can provide differentiated QoS
treatment to the traffic for an acceptable end-user experience.
▄ Cisco ASR 5000 Series 3G Home NodeB Gateway Administration Guide
30
HNB Gateway in Wireless Network
OL-25069-03
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