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cdma2000 QoS


imagecdma2000 QoS Third Generation Partnership Project 2 (3GPP2), the standards body in charge of cdma2000 standards, has issued a series of specifications that describe requirements necessary to support end-to-end QoS in the cdma2000 wireless IP network [3GPP2 2004a, 2004b]. The requirements are based on ... [full story]


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UMTS/3GPP-Defined QoS


imageUMTS/3GPP-Defined QoS Third Generation Partnership Project (3GPP) has standardized a common QoS framework for IP-based data services. They have defined a comprehensive framework for end-to-end QoS covering all subsystems in a UMTS network, including core network, wireless and universal terrestrial radio access networks, etc. ... [full story]


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QoS in 3G Wireless Networks


imageQoS in 3G Wireless Networks 2G networks such as Global System for Mobile Communications (GSM)/code division multiple access (CDMA) have essentially only one QoS option, viz., speech at full-rate coding in GSM. Subsequently, a half-rate service was introduced, thus offering a new QoS. In ... [full story]


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Two-Phase Activation Model


imageTwo-Phase Activation Model Activation of a service flow proceeds in two phases: admit first, then activate. This is facilitated via an authorization module in the BS, which approves or rejects a request regarding a service flow. The authorization module can activate a service flow ... [full story]


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Dynamic Service Establishment


imageDynamic Service Establishment The 802.16 standard provides a signaling function for dynamically establishing service flows and requesting QoS parameters. There are three types of control messages for service flows: Dynamic service activate (DSA)—Activate a service flow Dynamic service change (DSC)—Change an existing service flow Dynamic service ... [full story]


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