KR100860159B1 - Relocation method in mobile communication network - Google Patents

Abstract

The present invention relates to a method for reallocating wired / wireless resources in a mobile communication network. The present invention relates to determining whether a specific feature code is transmitted from a first mobile communication terminal to a first mobile switching center, and when the specific feature code is transmitted, the first mobile switching center. Requests a call waiting to the second mobile switching center, requests a radio resource reallocation from the first mobile switching center to the first base station transmission system, and responds to the radio resource reallocation request from the first mobile switching center. The radio resource reassignment operation is performed from the base station transmission system to the first mobile communication terminal. When the radio resource reassignment operation is completed in the first base station transmission system, the radio resource reallocation is allocated from the first base station transmission system to the first mobile switching center. Convey the completion message and reassign from the first base station transmission system to the first mobile switching center; When the message is delivered, the mobile station allocates a call to the second mobile switching center after reallocating the wired resource inside the first mobile switching center, and the call connection is disconnected from the first mobile switching center to the second mobile switching center. If requested, form a call to resume the call between the first mobile communication terminal and the second mobile communication terminal. According to the present invention, when a sound quality defect or silence occurs due to a wireless environment or a problem of a specific wired resource, the mobile terminal user can request to reassign wired / wireless resources by transmitting only a specific feature code. It can provide an upgraded mobile communication service environment.

Resource reallocation, feature code

Description

REALLOCATION METHOD IN MOBILE NETWORK {RELOCATION METHOD IN MOBILE COMMUNICATION NETWORK}

1 is a block diagram illustrating a mobile communication network for implementing a resource reallocation method according to the present invention;

2 is a flowchart illustrating a resource reallocation method in a mobile communication network according to a preferred embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100: MS (Mobile Station)

200: mobile communication network

202/1 to 202 / n, 204/1 to 204 / n: BTS (Base station transceiver system)

206/1 to 206 / n: BSC (Base Station Controller)

208: Mobile Switching Center (MSC)

The present invention relates to a call connection technology in a mobile communication network, and more particularly, to a method for reallocating resources in a mobile communication network suitable for resolving a bad voice tone without disconnection.

As is well known, according to the telephone communication for transmitting voice information to the call counterpart, the subscriber is connected to the subscriber terminal by adding mobility to the switch where a plurality of terminals are connected by wire through the current subscriber line. Personal mobile communication has been activated to allow a desired call while carrying.

According to this personal mobile communication, the call can be set up only within a certain range where the subscriber line is laid out in the wired telephony method, so that the call can be made with the call partner without being subject to local or local restrictions. (V) can be set.

In other words, for personal mobile communication, in addition to the existing call setup and additional service processing functions, a wired / wireless integrated system in which a call processing function of a wireless personal mobile communication subscriber is additionally added is required. In addition, the wired / wireless integrated system provides various services required in the personal communication network, and it is different from other personal networks (ISDN, etc.) to provide various communication services including the services provided in the existing wired subscriber network. It has been proposed as a form of personal communication exchange to provide interworking functions.

On the other hand, in the wired / wireless environment as described above, a situation in which a normal call such as a poor sound quality or a silent call is difficult due to a wireless environment or a problem of a specific wired resource may frequently occur.

However, in the conventional mobile communication network, when a poor sound quality occurs during a call, the user has no choice but to hang up and try again. This is very inconvenient and cumbersome for the terminal user and results in a variety of limitations in terms of mobile communication services.

The present invention is to overcome the above limitations of the prior art, it is possible to transmit a specific feature code (feature code) in the user terminal in the event of poor sound quality during a call, according to the feature code in the base station and the exchange It is an object of the present invention to provide a method for reallocating resources in a mobile communication network that can solve a poor sound quality without disconnection of a call by reallocating resources.

According to a preferred embodiment of the present invention for achieving the above object, a resource reallocation method in a mobile communication network in which a call connection between a first mobile communication terminal and a second mobile communication terminal is performed between at least two cells. Determining whether a specific feature code is transmitted from a mobile communication terminal to a first mobile switching center, and when the specific feature code is transmitted, requesting a call waiting from the first mobile switching center to a second mobile switching center; Requesting radio resource reassignment from the first mobile communication switching center to a first base station transmission system, and in response to the radio resource reallocation request from the first mobile communication switching center, transmitting the first mobile station in the first base station transmission system; Reassigning radio resources to the communication terminal; and transmitting the first base station. Transmitting a radio resource reassignment completion message from the first base station transmission system to the first mobile switching center when the radio resource reassignment operation is completed in the system; and the first mobile communication switching station in the first base station transmission system. Requesting a call connection to the second mobile telecommunication switching center after reassigning a wired resource inside the first mobile telecommunication switching center when the reassignment completion message is transmitted to the second mobile telecommunication switching center; And making a call to resume a call between the first mobile communication terminal and the second mobile communication terminal when a call connection is requested to a second mobile communication switching center.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is a block diagram of a mobile communication network for implementing a resource reallocation method according to the present invention, a mobile station (MS) 100, a mobile communication network 200, a base station transceiver system (hereinafter referred to as BTS) D) (202/1 to 202 / n, 204/1 to 204 / n), base station controller (abbreviated as BSC) (206/1 to 206 / n), mobile communication switching center (Mobile Switching Center (abbreviated as MSC) 208.

In FIG. 1, the mobile communication network 200 is involved in call setup and resource allocation of the MS 100. Although not shown in the drawing, a mobile communication network 200 may be established that is involved in call setup and resource allocation of another second MS. It will be readily understood by those of ordinary skill in the art.

As shown in FIG. 1, the MS 100 refers to a mobile client such as a mobile communication terminal, for example, a cellular client, a PCS phone, a DMB phone, or the like, and will be described below. 202 / n, 204/1, 204 / n) and provide wireless communication service to subscribers by interfacing with wireless connection according to IS-2000 standard. At this time, only one MS 100 is shown in the drawing, but this is only for convenience of description, and those skilled in the art will readily appreciate that a plurality of MSs connected to the mobile communication network 200 may be configured.

The BTSs 202/1 to 202 / n, 204/1, and 204 / n represent base stations, which respectively manage communication areas allocated in sector units, and enter the MS 100 and IS- which enter the communication area. It provides wireless communication service such as call processing, handoff and location registration to subscribers by interfacing with wireless connection according to 2000 standard.

The BSCs 206/1 to 206 / n are located between the MSC 208 and the BTSs 202/1 to 202 / n, 204/1 and 204 / n, respectively, and have an Internet matching function through a PSTN (not shown). Performs a vocoding function for the voice. The BSCs 206/1 to 206 / n control the plurality of BTSs 202/1 to 202 / n, 204/1, and 204 / n, and perform call processing and handoff for communication with the MSC 208. It performs the role of delivering location registration information from each base station to the MSC (208).

The MSC 208 performs an exchange function in, for example, a CDMA 2000 network, and provides an additional service by connecting a subscriber to various additional equipment in a mobile communication network such as a location based service (LBS) server and an additional service server. Or, it connects with other network, for example, PSTN, to provide services. In particular, the MSC 208 according to the present embodiment requests a call waiting with another MS in the second cell (without disconnecting the call) upon requesting a specific feature code from the MS 100, and in that state, the mobile communication network. It performs the role of reallocating wired and wireless resources within 200. Such a feature code request and its resource reallocation process will be described in more detail with reference to the flowchart of FIG.

Hereinafter, the resource reallocation process in the mobile communication network according to the preferred embodiment of the present invention will be described in detail with reference to the accompanying flowchart of FIG. 2.

Prior to the description of the embodiment, this process illustrates two cells, a cell involved in the call connection of the MS 100 and a cell involved in the call connection of the MS '100'.

As shown in FIG. 2, in a state in which a call between the MS 100 and the MS '100' is made (S200), the MSC 208 determines whether a specific feature code is transmitted from the MS 100 (S202). . Such a specific feature code is information such as "* 82 + call button" input from the MS 100, for example, a poor sound quality (e.g., noise) during a call connection between the MS 100 and the MS '100'. Etc.), so that the MS 100 requests a resource reallocation to the MSC 208.

When a particular feature code (eg, "* 82 + call button") is sent from the MS 100 to the MSC 208, the MSC 208 proceeds to step S204 to wait for a call to the MSC '208'. request.

If a call waiting request is received at MSC '208', MSC '208' proceeds to step S206 to send a call waiting sound to MS '100'.

Thereafter, the MSC 208 requests radio resource reassignment to the BTS 202 (S208), and the BTS 202 reassigns radio resources to the MS 100 in response to the radio resource reallocation request from the MSC 208. Proceed with the assignment (S210). The radio resource reassignment operation means using other resources of the base station, such as the existing soft hand-off or softer hand-off.

When the radio resource reassignment operation in the BTS 202 is completed, the BTS 202 proceeds to step S212 to transmit a radio resource reassignment completion message to the MSC 208.

When the reassignment completion message is transmitted from the BTS 202 to the MSC 208, the MSC 208 proceeds to step S214 to proceed with reallocating the wired resources inside the MSC 208, and then MSC '( Call 208 ').

When a call connection is requested from MSC 208 to MSC '208', a call is established between MSC 208 and MSC '208' and MS 100 and MS '100' resume the call. (S216).

As described above, according to the present invention, when a sound quality defect occurs during a call between mobile communication terminals, if only a specific feature code is transmitted to the exchange without hanging up the call, the call connection is continued by reallocating wired and wireless resources in the base station and the exchange. It is implemented to make it.

According to the present invention, when a sound quality defect or silence occurs due to a wireless environment or a problem of a specific wired resource, the mobile terminal user can request to reassign wired / wireless resources by transmitting only a specific feature code. It can provide an upgraded mobile communication service environment.

As described above, the embodiments of the present invention have been described in detail, but the present invention is not limited to these embodiments, and various modifications may be made by those skilled in the art within the spirit and scope of the present invention described in the claims below.

Claims (4)

delete delete A resource reallocation method in a mobile communication network in which a call connection between a first mobile communication terminal and a second mobile communication terminal is performed between at least two cells, Determining whether a specific feature code is transmitted from the first mobile communication terminal to a first mobile communication switching center; Requesting a call waiting from the first mobile switching center to a second mobile switching center when the specific feature code is transmitted; Transmitting a call waiting sound from the second mobile communication switching station to a second mobile communication terminal when the call waiting request is received at the second mobile communication switching station; Requesting radio resource reallocation from the first mobile communication switching center to a first base station transmission system; Performing a radio resource reassignment operation from the first base station transmission system to the first mobile communication terminal in response to a radio resource reallocation request from the first mobile communication switching center; Transmitting a radio resource reassignment completion message from the first base station transmission system to the first mobile switching center when the radio resource reassignment operation is completed in the first base station transmission system; When the reassignment completion message is transmitted from the first base station transmission system to the first mobile communication switching center, the mobile station performs reassignment of a wired resource inside the first mobile communication switching center and then makes a call connection to the second mobile communication switching center. Requesting, Forming a call to resume a call between the first mobile communication terminal and the second mobile communication terminal when a call connection is requested from the first mobile communication switching station to the second mobile communication switching station; Resource reallocation method in a mobile communication network comprising a. The method of claim 3, wherein The radio resource reassignment operation, A method for reallocating resources in a mobile communication network, using different resources of a corresponding base station in the form of soft hand-off or softer hand-off.

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