第七號信令系統信令在MTP與SCTP實作上的比較與分析

Abstract

第七號信令系統信令提供行動電信通訊網路控制與管理的功能。在現今的行動網路，第七號信令系統信令是實作在以Message Transfer Part為基礎的網路上。但在新的Universal Mobile Telecommunication System (UMTS) all-IP的架構下，第七號信令系統信令將會被應用傳輸在IP網路。本論文即實作第七號信令系統信令在傳統以Message Transfer Part為基礎的網路上的傳輸與在UMTS all-IP架構下Stream Control Transmission Protocol上的傳輸。我們並從訊息格式、連線準備與資料傳輸/回報這三個觀點來比較這兩種不同的方法，並以3GPP TS 23.060所定義的Send Authentication Info程序來測量分析這兩種方法實作的效能。

Signaling System Number 7 (SS7) signaling provides control and management functions in the mobile telecommunications network. Traditional SS7 signaling is implemented in Message Transfer Part-based network, which is utilized in the existing mobile networks. In Universal Mobile Telecommunication System (UMTS) all-IP architecture, the SS7 signaling transport will be carried by IP-based network. In this paper, we design and implement Message Transfer Part-based SS7 signaling transport and Stream Control Transmission Protocol-based SS7 signaling transport for UMTS all-IP network. We compare of these two approaches in three perspectives: message format, connection setup, and data transmission/ack. We also illustrate the performance of our implementations by using the Send Authentication Info procedure defined in 3GPP Technical Specification 23.060.