View source for Packet data serving node

{{More citations needed|date=December 2007}}
The '''Packet Data Serving Node''', or '''PDSN''', is a component of a [[CDMA2000]] mobile network.<ref>[http://www.cisco.com/en/US/tech/tk722/tk721/tk488/tsd_technology_support_sub-protocol_home.html Packet Data Serving Node (PDSN) – Cisco Systems<!-- Bot generated title -->]</ref> It acts as the connection point between the [[Radio|radio access]] and [[Internet Protocol|IP networks]]. This component is responsible for managing [[Point-to-Point Protocol|PPP]] sessions between the mobile provider's core IP network and the mobile station (mobile phone). It is similar in function to the [[GGSN|GGSN (GPRS Gateway Support Node)]] that is found in [[GSM]] and [[UMTS]] networks.

Although PDSN is thought of being similar to GGSN in a conceptual sense, logically it's a combination of SGSN and GGSN in the CDMA world. It provides:

# Mobility management functions (provided by SGSN in the GPRS/UMTS networks)
# Packet routing functionality (provided by GGSN in the GPRS/UMTS networks)

== References ==
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==See also==
* [[CDMA 2000]]
* [[Radio Network Controller]]
* Starent Networks is the leading provider of PDSN. www.starentnetworks.com

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[[Category:Mobile telecommunications standards]]
[[Category:3rd Generation Partnership Project 2 standards]]
[[Category:Telecommunications infrastructure]]

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