The present document provides the stage 3 specification of the Rq interface. The functional requirements and the stage 2 specifications of the Rq interface are contained in ES 282 001 [1] and ES 282 003 [2]. The Rq interface is the interface between the Service Policy Decision Function (SPDF) and the Access - Resource and Admission Control Function (A-RACF) and is used for QoS resource reservation information exchange between the SPDF and the A-RACF. Via the Rq interface the SPDF issues requests for resources in the access network, indicating IP QoS characteristics. The A-RACF uses the IP QoS information to perform admission control and indicate to the SPDF via the Rq interface its admission control decisions. Due to the possible business roles in an access environment, the SPDF may be either in the same domain or in a different domain as the A-RACF. The present document defines: ? The information to be exchanged between SPDF and A-RACF over the Rq interface. ? An Rq interface definition based on the Diameter protocol. In situations where no generic overload control mechanism is used on the Rq interface, the interface shall only be capable of supporting a one-to-one relationship between the A-RACF and SPDF (i.e. one SPDF may only contact one A-RACF, and that A-RACF may only contact that same SPDF). Overload control need not be supported in this situation due to the fact that it should be possible to traffic engineer the capabilities of the two entities, so that the capacity of one entity matches the capacity of the other.
ETSI ES 283 026-2008由欧洲电信标准协会 IX-ETSI 发布于 2008-04-01。
ETSI ES 283 026-2008 在中国标准分类中归属于: M13 通信网结构。
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