홈 > 표준화 개요 > TTA의 표준현황
| 표준번호 | TTAT.3G-23.009(R7-7.0.0) | 구표준번호 | |
|---|---|---|---|
| 제개정일 | 2008-04-09 | 총페이지 | 0 |
| 한글표준명 | IMT-2000 3GPP - 핸드오버 절차 (R7) | ||
| 영문표준명 | IMT-2000 3GPP-Handover procedures (R7) | ||
| 한글내용요약 | |||
| 영문내용요약 | The present document contains a detailed description of the handover procedures to be used in PLMNs. The purpose of the handover procedures, as described in the present document, are to ensure that the connection to the Mobile Station (MS) or User Equipment (UE) is maintained as it moves from one cell or radio network to another. The document defines the circuit switched handover functionality based on the service requirements in 3GPP TS 22.129 [9].
The present document considers the following four cases: i) handover between Base Stations connected to the same MSC, this is termed an Intra-MSC handover; ii) handover between Radio Network Subsystems connected to the same 3G_MSC, this is termed an Intra-3G_MSC handover/relocation. This case also includes inter-system handover between RNS and BSS if the 3G_MSC supports the A-interface. In the context of this specification the term RNS refers also to a BSS when serving a mobile station in Iu mode; iii) handover between Base Stations connected to different MSCs, this is termed an Inter-MSC handover. This category can be sub-divided into three further procedures: a) the Basic Inter-MSC Handover procedure, where the MS is handed over from a controlling MSC (MSC A) to another MSC (MSC B); b) the Subsequent Inter-MSC Handover procedure, where the MS is handed over from MSC B to a third MSC (MSC B'); c) the Subsequent Inter-MSC handback, where the MS is handed back from MSC B to MSC A. iv) handover between Radio Network Subsystems connected to different 3G_MSCs, this is termed an Inter-3G_MSC handover/relocation. In the context of this specification the term RNS also refers to a BSS when serving a mobile station in Iu mode. This category can be divided into three further sub-procedures: a) the Inter-3G_MSC Handover procedure from UMTS to GSM, where the UE/MS is handed over from a controlling 3G_MSC (3G_MSC A) to an MSC (MSC B); b) the Inter-3G_MSC Handover procedure from GSM to UMTS, where the UE/MS is handed over from a controlling MSC (MSC A) to a 3G_MSC (3G_MSC B); c) the Inter-3G_MSC Relocation procedure, where the UE is relocated from 3G_MSC A to 3G_MSC B. This procedure can also be combined with a hard change of radio resources (Hard Handover with switch in the core network). The MSC in this category can optionally be a 3G_MSC supporting the A-interface. The three sub-procedures do also cover subsequent handover/relocation to a third MSC B' or 3G_MSC B' and subsequent handover/relocation back to MSC A or 3G_MSC A. In both cases i) and iii) the same procedures as defined in the 3GPP TS 48.008 [5] and the 3GPP TS 24.008 [10] shall be used on the A interface and on the Radio Interface, respectively. In case ii) the same procedures as defined in the 3GPP TS 25.413 [11] and the 3GPP TS 24.008 [10] shall be used on the Iu interface. If the 3G_MSC in case ii) also supports the A-interface, the 3GPP TS 48.008 [5] and the 3GPP TS 24.008 [10] shall be used on the A interface. In case iii) the handover procedures shall transport the A-interface messages between MSC A and MSC B described in the Mobile Application Part (MAP), 3GPP TS 29.002 [12]. In case iv) the handover procedures shall transport the A-interface messages between 3G_MSC and MSC described in the Mobile Application Part (MAP), 3GPP TS 29.002 [12]. In case iv) the relocation procedure shall transport the Iu-interface messages between 3G_MSC A and 3G_MSC B described in the Mobile Application Part (MAP), 3GPP TS 29.002 [12]. The interworking between the 3GPP TS 29.002 [12] protocol and the 3GPP TS 48.008 [5] protocol is described in the 3GPP TS 29.010 [8]. Multicall supplementary service is not applicable in GERAN Iu mode and relocation of Multicalls is therefore only possible within UTRAN. Handovers, which take place on the same MSC are termed Intra-MSC handovers; this includes both Inter-BSS and Intra BSS handovers. Handovers, which take place on the same 3G_MSC are termed Intra-3G_MSC handovers; this includes |
||
| 국제표준 | |||
| 관련파일 |
 TTAT.3G-23.009(R7-7.0.0).zip
| ||
