Conference Paper

QoS Signalling in 4G Scenarios

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Abstract

II NTRODUCTION Next generation wireless communication systems will handle diverse types of services, across different types of access technologies. This trend, already present in 3G networks and in the current explosion of

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... These functionalities can now be assumed by the SPP and supported by IETF protocols, such as COPS (Common Open Policy Service)[13]. This distribution is very advantageous, since it avoids the requirements of an extra control plane entity (essentially removing the UTRAN/GERAN specificities), as the QoS Broker and A4C are already present in the 4G architecture for supporting unicast services [14]. To support IP multicast services, the functionalities of the routers and QoS Brokers need to be extended, compared to the ones required for the support of unicast services. ...
... In the wired access and core networks, DiffServ architecture is used to support QoS, achieving scalability and performance. In the wireless link, IntServ-alike resource management is used to provide better QoS resource control in the wireless part [14]. In both cases, a QoS Broker is the element responsible for the resource reservation and management. ...
... This architecture was developed and trialed in our test site in Aveiro. All functional entities were developed, including ARs, QoSB, and A4C servers [14]. Multicast routing daemons were also developed, for routing integration with the control place. ...
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