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What is the difference between Ro and Gy interface of diameter?

+2 votes

As per my understanding both are same but could not confirm the same from internet so asking this question.

posted Apr 18, 2013 by Salil Agrawal

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2 Answers

+1 vote

Gy is mostly a restricted subset of Ro. For instance, in Gy online charging the use of multiple-services-credit-control AVP is mandatory. Gy also adds some AVPs that Ro doesn't specify (eg. volume-quota-threshold).

answer May 4, 2013 by anonymous
+1 vote

Ro is a 3GPP reference point that describes the connection to the OCS from another functional component. It is a general term that covers multiple connecting components such as GGSN, P-GW, WLAN, IMS AS, MBMS server, etc. See 3GPP TS 32.296 [1] Figure 5.1 for reference.

Gy is an specific instance of the Ro reference point that connects a charging component from the packet-switched domain (PS domain) i.e. PCEF within a GGSN or P-GW to the OCS. See 3GPP TS 32.251 [2] Figure 4.3-1 for reference.

answer May 4, 2013 by anonymous
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