TS 123 034-2012
数字蜂窝电信系统（2+阶段）；通用移动通信系统（UMTS）；高速电路交换数据（HSCSD）；第 2 阶段（V11.0.0；3GPP TS 23.034 版本 11.0.0 第 11 版）

Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); High Speed Circuit Switched Data (HSCSD); Stage 2 (V11.0.0; 3GPP TS 23.034 version 11.0.0 Release 11)

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标准号

TS 123 034-2012

发布

2012年

发布单位

ETSI - European Telecommunications Standards Institute

替代标准

TS 123 034-2014

当前最新

TS 123 034-2018

 

 

适用范围

The present document contains the stage 2 service description for a High Speed Circuit Switched Data (HSCSD) on GSM/GERAN in A/Gb mode and Iu mode. HSCSD utilizes the multislot mechanism@ i.e. using multiple traffic channels (/bearers) for the communication. Additionally@ the present document specifies some HSCSD related requirements for multi system mobile stations operating in UTRAN Iu mode. In UTRAN Iu mode one bearer can provide all needed data rates@ and the multislot mechanism is therefore not needed. However@ for inter-system handover to GERAN@ certain information has to be provided by the mobile station during the service negotiation. The UTRAN Iu mode aspects concerning HSCSD are described exclusively in clause 4.2. In analogy with ITU-T Recommendation I.130 [6] (refer to annex A) and with reference of ITU-T Recommendation Q.65 [7] VI.1 (Stage 2 of the method for characterization of services supported by an ISDN)@ the second stage of the HSCSD is defined as follows. Stage 2 identifies the functional capabilities and information flows needed to support the service as described in 3GPP TS 22.034 [9]. Furthermore@ it identifies various possible physical locations for the functional capabilities. The output of Stage 2@ which is signalling system independent@ is used as an input to Stage 3@ the design of signalling system and switching Recommendations.

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