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Method and system for supporting circuit domain service in high-speed data access evolution network

A technology for high-speed data access and support circuits, applied in electrical components, wireless communications, etc., can solve problems affecting user service experience, increase message transmission delay, etc., and achieve the effect of shortening the establishment delay and speeding up the speed.

Inactive Publication Date: 2009-05-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing technology, the switching process must be completed through the core network, thus, the transmission delay of the message is virtually increased, and the service experience of the user is affected.

Method used

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  • Method and system for supporting circuit domain service in high-speed data access evolution network
  • Method and system for supporting circuit domain service in high-speed data access evolution network
  • Method and system for supporting circuit domain service in high-speed data access evolution network

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Embodiment 1

[0047] Figure 6 It is a flowchart of the first preferred embodiment of the method of the present invention. In this embodiment, it is assumed that the source RNC of the UE is the NB+ in the Standalone scenario in the evolved HSPA UTRAN network, and the target RNC of the UE is the RNC in the UMTS network. Among them, NB+ is connected to the core network through the Iu_CS signaling interface; NB+ is connected to the target RNC through a new interface, such as the Iur interface. When the UE camped under the NB+ initiates a CS service call, the NB+ and the target RNC in the UMTS network supporting the CS service perform inter-frequency hard handover. For the convenience of description, the target RNC is referred to as RNC for short below. Such as Figure 6 As shown, it includes the following steps:

[0048] Step 601: UE sends an initial direct transfer message to NB+.

[0049] In this step, the UE initiates a CS call in a cell (CELL) controlled by NB+ and sends an initial direct tra...

Embodiment 2

[0071] Figure 7 It is a flowchart of the second preferred embodiment of the method of the present invention. In this embodiment, it is assumed that the source RNC of the UE is the NB+ in the Standalone scenario in the evolved HSPA UTRAN network, and the target RNC of the UE is the RNC in the UMTS network. Assume that there is no In_CS signaling connection between NB+ and MSC, but NB+ and RNC are connected through a newly-added interface, such as the Iur interface. When the UE camped under the NB+ initiates a CS service call, the NB+ and the RNC in the UMTS network supporting the CS service perform inter-frequency hard handover. Such as Figure 7 As shown, it includes the following steps:

[0072] Step 701: UE sends an initial direct transfer message to NB+.

[0073] In this step, the UE initiates a CS call under CELL controlled by NB+ and sends an initial direct transfer message to NB+.

[0074] Step 702: NB+ determines that the service is a CS service according to the received i...

Embodiment 3

[0082] Figure 8 It is a flowchart of the third preferred embodiment of the method of the present invention. In this embodiment, it is assumed that the source RNC of the UE is the NB+ in the Standalone scenario in the evolved HSPA UTRAN network, and the target RNC of the UE is the RNC in the UMTS network. Assume that there is no In_CS signaling connection between NB+ and MSC, but NB+ and RNC are connected through a new interface, such as the Iur interface. When the UE camped under the NB+ initiates a CS service call, the NB+ and the RNC in the UMTS network supporting the CS service perform inter-frequency hard handover.

[0083] Such as Figure 8 As shown, this preferred embodiment is compared with the second preferred embodiment. The only difference is that the Iu bearer between the RNC and the MSC is established at the same time that the radio link bearer is established. Figure 7 Step 712 shown is advanced to Figure 8 The step 804a shown is executed, and the corresponding rad...

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Abstract

An embodiment of the invention discloses a method and a system for supporting circuit switching field (CS) service in a high speed data access (HSDA) evolution network. User equipment (UE) under an evolution base station (NodeB+) initializes a CS calling. The NodeB+ initializes a relocating request to RNC through an interface arranged between the radio network controller (RNC) in the traditional network under standalone carrier scene. The RNC executes wireless parameter collocation and relocating preparation according to the relocating request and informs the container collocated for NodeB+ and RNC. The NodeB confirms initializing physical layer channel re-collocating information to UE according to the informing information. The UE executes radio link re-collocation according to the information in the physical layer channel re-collocating information and accesses the RNC for completing re-collocation. The application of the method and system defined in the embodiment of the invention can shorten the time delay in the establishing process of CS calling.

Description

Technical field [0001] The present invention relates to mobile communication technology, in particular to a method and system for supporting circuit domain services in a high-speed data access evolution network. Background technique [0002] The Universal Mobile Telecommunication System (UMTS) is a third-generation (3G) mobile communication system that adopts Wideband Code Division Multiple Access (WCDMA) air interface technology. The UMTS system is usually called a WCDMA communication system. The UMTS system adopts a structure similar to the second-generation mobile communication system, such as figure 1 As shown, figure 1 It is a schematic diagram of the structure of the existing UMTS system. by figure 1 It can be seen that the existing UMTS system mainly includes four parts: user terminal (UE), UMTS external radio access network (UTRAN), core network (CN), and external network. [0003] Among them, CN is used to handle all voice calls and data connections in the UMTS system...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/18H04W36/12H04W92/12H04W92/10
Inventor 周铮蔺波薛希俊张玲
Owner HUAWEI TECH CO LTD