CN100403816C - Mobile communication system supporting three-party calling and method for removing second device - Google Patents

Abstract

The invention discloses a method for dismantling a second device in a mobile communication system supporting three-party calls. During the process of talking with the second device through the mobile network, the main control device calls the third device to join the third device. During the call, a mobile communication system supporting three-party calls is formed. The method includes: configuring an operation code for removing the second device on the network element device of the mobile network; and when the network element device detects that the master device sends an operation code for removing the second device, the network element device removes the second device. At the same time, the invention also discloses a mobile communication system supporting three-way calling.

Description

Mobile communication system supporting three-party calling and method for removing second device

technical field

The invention relates to a mobile communication system, in particular to a mobile communication system supporting three-party calls.

Background technique

In the mobile communication system, the three-way call (3WC) service means that when user A and user B are in a conversation state (user A can be either the calling party or the called party), user A calls user C to join the call Come. At this time, user A, user B, and user C form a three-party call communication system under the control of the mobile network. User A can be called the master device, user B can be called the second device, and user C can be called the third device.

In the prior art, after the main control device, the second device, and the third device enter into a three-party call (3WC) state, the second device and the third device can exit the call by disconnecting themselves. The master control device can dismantle the third device by sending a Flash (for example, clicking the SEND key), so that it exits the call. However, the main control device cannot actively dismantle the second device in the three-party call state, so that the second device exits the call and only keeps the call with the third device. For example, in the existing ANSI-664 protocol, in the three-party call state, if the master device needs to terminate the call with the second device and only maintain the call with the third device, there are only two ways: one is to request the second device The device actively disconnects to exit the three-party call; the second is to actively disconnect to end the entire three-party call and then call the third device to establish a new call. It can be seen that in the first way, the main control device does not have the right to actively dismantle the second device, while in the second way, the main control device will interrupt the communication with the third device for a period of time. Therefore, the main control device cannot flexibly remove the second device in the three-party call service, which reduces user satisfaction.

Therefore, it is necessary to invent a three-party communication system in which the main control device can actively dismantle the second device.

Contents of the invention

The purpose of the present invention is to provide a mobile communication system supporting three-party calls and a method for removing the second device in the system, so as to solve the problem that the main control device cannot actively remove the second device in the mobile communication system supporting three-party calls in the prior art. 2. Technical problems of equipment.

One aspect of the present invention provides a method for removing a second device in a mobile communication system that supports three-party calls. The main control device calls the third device to remove the third device during the process of talking with the second device through the mobile network. Joining in a call to form the mobile communication system supporting three-party calls, the method includes: configuring an operation code for removing the second device on a network element device of the mobile network; when the network element device detects that the When the master control device sends the operation code for removing the second device, the network element device removes the second device.

Another aspect of the present invention provides a mobile communication system that supports three-party calls, including a main control device, a second device, a third device, and a mobile network, and the main control device, the second device, and the third device communicate with the mobile network respectively. Coupling, characterized in that: the mobile network includes a network element device, the network element device includes: a storage unit for storing an operation code for removing the second device; a detection unit for detecting that the main control device sends the An operation code for removing the second device; and a removal unit, used for removing the second device, and the master control device includes: a sending unit, used for sending the information for removing the second device to the network element device the opcode.

In the mobile communication system supporting three-party calls provided by the present invention, the main control device can send an operation code for dismantling the second device to the network element device in the mobile network, and after the network element device receives the operation code, That is, the second device is removed. Therefore, the main control device can actively dismantle the second device in the state of the three-party call, which is convenient for the user and improves the satisfaction of the user.

Other aspects and advantages of the present invention will be described in detail in the manner of preferred embodiments in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is a system structure diagram of a preferred embodiment of a mobile communication system supporting three-party calls provided by the present invention;

Fig. 2 is a flow chart of setting up a three-party conversation based on the mobile communication system provided in Fig. 1;

Fig. 3 is a partial detailed structural schematic diagram based on the mobile communication system given in Fig. 1;

Fig. 4 is a flow chart of dismantling the second device based on the mobile communication system provided in Fig. 1;

FIG. 5 is a system structural diagram of another preferred embodiment of a mobile communication system supporting three-party calls provided by the present invention;

Fig. 6 is a flow chart of dismantling the second device at one time based on the mobile communication system given in Fig. 5

Detailed ways

Referring to FIG. 1 , it illustrates the system structure of a preferred embodiment of a mobile communication system supporting three-party calls provided by the present invention. As shown, MSs (Mobile Stations) 101-103 are three mobile communication devices (eg, mobile phones). MS101, MS102 and MS103 are respectively coupled to the mobile network 200, and under the connection and control provided by the mobile network 200, the three-party call is performed.

Referring to FIG. 1 , a mobile network 200 includes an access network 210 and a core network 220 . Access network 210 includes BTS (base transceiver station) 211 and BSC (base station controller) 212, in another specific embodiment of the present invention, access network may include NodeB (cell node) and RNC (radio network controller) . However, no matter what kind of access network it is, its function is to provide mobile network access services for the MSs 101-103, and changes in the units and structures of the access network will not affect the implementation of the present invention.

Referring to FIG. 1, the core network 220 includes MSCe (Mobile Switching Center Emulation) for providing services for the MSs 101-103. Of course, the core network 220 may also include devices such as GMSC, SGSN, PDSN, and GGSN, but this does not affect the implementation of the present invention.

Referring to FIG. 1 , MS101-103 are coupled to BTS211 in access network 210 , BTS211 is connected to BSC212 , and BSC212 is connected to MSCe221 of core network 220 . Under this structure, MS101-103 can communicate with each other through BTS211, BSC212 and MSCe221.

Referring to FIG. 2 , it illustrates a flow of establishing a three-party call based on the mobile communication system shown in FIG. 1 . Because the BTS211 and BSC212 are intermediate forwarding devices, the processing on them is obvious to those skilled in the art, so they are omitted in the figure. As shown in the figure, the implementation process of a three-party call service includes the following steps: 1. MS101 sends the number of MS102 + SEND information to MSCe221, that is, dials the number of MS102 and presses the SEND (send) key; 2. After receiving the information, MSCe221 sends MS102 sends the call setup information, and after this, MS101 and MS102 enter the two-party conversation state; 3, MS101 sends SEND information to MSCe221, that is, clicks the SEND button; 4, MSCe221 receives the information (an empty Flash With Information message) and sends MS102 sends call hold information, at this time, the call state between MS101 and MS102 is kept; 5. MS101 sends MS103's number + SEND message to MSCe221, that is, dials MS103's number and presses the SEND (send) key; 6. MSCe221 receives the message Then send call setup information to MS103; 7. MS101 sends SEND information to MSCe221, that is, click the SEND button; 8. MS101, MS102 and MS103 enter the three-party call (3WC) state. According to the role and sequence in the establishment process, MS101 is called the main control device of this service. MS102 is called the second device of this service. MS103 is called the third device of this service. Of course, if during the two-way conversation between MS101 and MS102, that is, after step 2, MS102 initiates a call to MS103 to establish a three-party call between MS101, MS102 and MS103, MS102 is the master device, MS101 is the second device, and MS103 is the first Three devices. That is to say, as long as there is a two-party call, whether it is the calling party who establishes a two-party call or the called party initiates a call to a third party to establish a three-way call, the caller is the master control device, and the other party in the two-party call One party is the second device, and the third party added later is the third device. In the following, unless otherwise specified, MS101 is the master device, MS102 is the second device, and MS103 is the third device.

Referring to FIG. 1 and FIG. 3 , FIG. 3 illustrates a partial detailed structure of the mobile communication system based on FIG. 1 . As shown in the figure, in the mobile communication system supporting three-party calls provided by the present invention, the network element device in the mobile network 200 , that is, MSCe221 includes a storage unit 2211 , a detection unit 2213 and a removal unit 2212 . Wherein, the storage unit 2211 may be a random access memory (RAM), which internally stores an operation code for removing the second device (ie, MS102). The detection unit 2213 may be a network interface card, configured to detect that the main control device (ie, MS101 ) sends the operation code for removing the second device (ie, MS102 ). The detection unit 2213 sends the detected results to the removal unit 2212 . The dismantling unit 2212 may be a module in the processor unit of the MSCe221, and the dismantling unit 2212 is used for the result detected by the detection unit 2213, and according to the operation stored in the storage unit 2211 for dismantling the second device (ie, the MS102) Code, remove MS102 from the mobile communication system.

Referring to FIG. 1 and FIG. 3 , the main control device (ie MS101 ) includes a sending unit 1011 configured to send an operation code for dismantling the second device (ie MS102 ) to MSCe221 .

Referring to FIG. 4 , it illustrates a process of removing the second device once based on the mobile communication system shown in FIG. 1 . As shown in the figure, the initial state of the system is that MS101, MS102 and MS103 are in a three-party conversation state. The process of removing MS102 includes: 1. MS101 sends an operation code for removing MS102 to MSCe221. The operation code can be flexibly configured, for example, in an embodiment of the present invention, the operation code is *602. The operation code is sent to MSCe221 in the form of Flash as a carrier. 2. After receiving the operation code, MSCe221 judges that the operation code is the operation code of removing MS102, and performs the operation of removing MS102. After the process of removing MS102 ends, MS101 and MS103 keep talking.

Referring to Fig. 1 and Fig. 5, Fig. 5 illustrates the system structure of another preferred embodiment of a mobile communication system supporting three-party calls provided by the present invention. As shown in the figure, Fig. 5 is compared with Fig. 1, has increased HLR (Home Location Register) 222 at the core network 220 place, and the structure that MSCe221 includes and the function performed above are all configured on this HLR222, namely That is to say, in this preferred embodiment, the network element device performing the removal of the second device is HLR222.

Referring to FIG. 6 , it illustrates a process of removing the second device once based on the mobile communication system shown in FIG. 5 . As shown in the figure, the initial state of the system is that MS101, MS102 and MS103 are in a three-party conversation state. The process includes: 1. MS101 sends an operation code for dismantling MS102 to MSCe221. The operation code can be flexibly configured, for example, in an embodiment of the present invention, the operation code is *602. The operation code is sent to MSCe221 in the form of Flash as a carrier. 2. After receiving the operation codes, MSCe221 finds through analysis that what MS101 sends is a series of Feature service operation codes, which need to trigger supplementary services to HLR222. Therefore, MSCe221 forwards the operation code to HLR222. 3. After HLR222 receives the operation code of MSCe221 with the Feature message as the carrier form, it judges that this operation code is the operation code for removing MS102, and sends the Aciton Code to MSCe221. A message in the form of a carrier, the message is the MS102 removal message. 4. MSCe221 removes MS102. It can be seen from the above flow that in this embodiment, the functional entity of dismantling the MS102 is undertaken by the HLR222.

In the mobile communication system supporting the three-party call provided by the present invention, the main control device can not only flexibly remove the third device in the three-party call state, but also flexibly remove the second device in the three-party call state. Therefore, it is convenient for the user to use the three-party calling service, and the satisfaction of the user is improved.

What is disclosed above is only a preferred embodiment of the present invention, and of course it cannot limit the scope of rights of the present invention. Therefore, equivalent changes made according to the patent scope of the present invention still fall within the scope of the present invention.

Claims (6)

1. A method for dismantling a second device in a mobile communication system that supports three-way calls, wherein the main control device adds the third device to the call by calling the third device during a call with the second device through the mobile network Composing the mobile communication system supporting the three-party call, the method includes: configuring an operation code for removing the second device on the network element device of the mobile network; When the network element device detects that the master control device sends the operation code for removing the second device, the network element device removes the second device. 2. The method according to claim 1, characterized in that: the network element device is a mobile switching center emulation MSCe. 3. The method according to claim 1, wherein the network element device is a Home Location Register (HLR). 4. A mobile communication system that supports three-party calls, including a main control device, a second device, a third device and a mobile network, the main control device, the second device and the third device are respectively connected to the mobile network, and its features in: The mobile network includes network element equipment, and the network element equipment includes: a storage unit for storing an operation code for dismantling the second device; a detection unit, configured to detect that the main control device sends the operation code for dismantling the second device; and a dismantling unit, configured to dismantle the second device according to the operation code for dismantling the second device sent by the master control device detected by the detection unit, The master control device includes: A sending unit, configured to send the operation code for removing the second device to the network element device. 5. The system according to claim 4, characterized in that: said network element device is a mobile switching center emulation MSCe. 6. The system according to claim 4, wherein the network element device is a Home Location Register (HLR).

Images