name: SABP
full_form: Service Area Broadcast Protocol
context: are restored/uncompressed. On the uplink, UDP/IP packets are compressed and sent over the narrow-band link. At the CDN, packets are uncompressed and mapped onto an MPLS path for transport to the RNC. Because the MPLS label attached to the compressed packet is used to route the frame through the network, the CDN can be located at the RNC or at any point along the path to the Node B that has sufficient processing capacity for handling the CDN functions. Figure 6-11: Protocol stacks at key nodes in the network for a MPLS-based transport solution An MPLS-based transport solution for the UTRAN, integrated with DiffServ (or DiffServ-like) mechanisms, includes the following: - Label-Switched Paths (LSPs) are established between an RNC and a Node B, in both directions; each LSP carries one or more class of service supported by the UTRAN. This occurs during NodeB initialization, before user traffic is allowed to flow through the NodeB. LSPs can be pre-setup via provisioning (e.g., using COPS
description: The Service Area Broadcast Protocol (SABP) is a protocol used for broadcasting information within a service area. It utilizes ASN.1 definitions to specify the structure and content of SABP messages, which can contain various Information Elements (IEs) as defined in object set definitions. The protocol adheres to ITU-T recommendations X.680 and X.681, ensuring conformity with international standards.
explanation: SABP is classified as a Protocol due to its role in defining the structure and rules for broadcasting messages within a service area.
section_title: 9.3.0	General
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