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Controller for GSM and 3G base transceiver stations in a GSM core network with external handover possibility fr0m 3G cells to GSM cells, trasparent to GSM core network

一种越区切换、控制器的技术，应用在电气元件、无线电/感应链路选择安排、选择装置等方向，达到节省资源的效果

Inactive Publication Date: 2005-09-21
SIEMENS INFORMATION & COMM NEWTWORKS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0042] The second problem arising from the new mobile phone situation and the constraints on the core network is the design configuration of the station controller

Method used

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  • Controller for GSM and 3G base transceiver stations in a GSM core network with external handover possibility fr0m 3G cells to GSM cells, trasparent to GSM core network
  • Controller for GSM and 3G base transceiver stations in a GSM core network with external handover possibility fr0m 3G cells to GSM cells, trasparent to GSM core network
  • Controller for GSM and 3G base transceiver stations in a GSM core network with external handover possibility fr0m 3G cells to GSM cells, trasparent to GSM core network

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Embodiment Construction

[0073] Figure 3 shows the case of a mobile transceiver comprising a GSM cell and a TD-SCDMA cell, where boundaries are not shown in the figure for simplicity. GSM cells are served by the same number of GSM (DCS) system base transceiver stations BTS, while TD-SCDMA cells are served by the same number of TD-SCDMA system base transceiver stations BTSC (TD-SCDMA base transceiver stations), BTSC is also called Node B . Since any cell of the system is served by its own BTS / BTSC, the terms "cell" and "BTS / BTSC" may be considered synonymous. Since the frequency bands are used separately by the two systems, cells in the same area can have radio coverage from both systems at the same time, so cells in the same area can be covered by a GSM cell and a TD-SCDMA cell at the same time. A group of mobile units is in radio connection with an associated one of the base stations visible in the figure. These mobile phones can be a single radio access technology, advantageously they can support ...

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Abstract

A station controller (M-BSC) is connected to base transceiver stations BTS of the GSM (Global System for Mobile), or DCS (Digital Cellular System) mobile transceiver system, and to BTSC base transceiver stations of the TD-SCDMA (Time Division Synchronous Code Division Multiple Access) system through code division transceiver access technology, typical of 3 G systems, and TDD duplexing. The controller is connected to a MSC circuit switch of GSM type. The new 3 G technology shares the GSM core network, which on the contrary ignores the existence of the latter. Transparency of the 3 G new technology towards the core network is achieved inhibiting any handover from GSM cells to BTSC cells and enabling the external handover (through MSC intervention) from BTSC cells to GSM cells after appropriate treatment of information to be sent to MSC. The ad hoc procedure is carried out by the station controller and consists in reprocessing the mixed list ( 2 G and 3 G) of cells candidate for handover furnished with by BTSC, to obtain two lists of cells differing as to radio technology, selecting a list to be forwarded to MSC according to service qualification criteria, comparing in a local memory the (MS / UE) mobile classmarks owned by MSC with those associated to the selected list and, in case of inconsistency, updating MSC classmarks prior to the forwarding of the selected list.

Description

technical field [0001] The present invention relates to the mobile telecommunications sector, in particular to a controller for GSM and 3G transceiver base stations in a GSM core network and a method for external handover from a 3G cell to a GSM cell transparent to the GSM core network. Background technique [0002] Among the public cellular mobile telecommunications backbone networks or PLMNs (Public Land Mobile Networks), the most famous are of course the pan-European 900MHz GSM system (Global System for Mobile Communications), and its direct derivative, the 1800MHz DCS (Digital Cellular System). GSM is a 2nd generation system formed by specifications published in recommendation form by special supranational organizations (CEPT / CCITT, within ETSI / ITU-T) whose purpose is to regulate the operation of telecommunication systems proposed by different manufacturers. Standardized so that they are compatible and thus can communicate with each other. [0003] When designing a mobi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/14
CPCH04W36/0066H04W36/0061
Inventor 马科·贝拉斯蒂法诺·萨托雷利
Owner SIEMENS INFORMATION & COMM NEWTWORKS INC