WO2015168890A1

WO2015168890A1 - Voip exchange method and relevant device

Info

Publication number: WO2015168890A1
Application number: PCT/CN2014/076998
Authority: WO
Inventors: 刘海; 崇卫微
Original assignee: 华为技术有限公司
Priority date: 2014-05-08
Filing date: 2014-05-08
Publication date: 2015-11-12
Also published as: CN105264962B; CN105264962A

Abstract

Disclosed are a VOIP exchange method and a relevant device. The method comprises: acquiring first global ID information or second global ID information; when the first global ID information is acquired, sending the first global ID information to a base station and a serving gateway where a called terminal is located, in order that the base station and the serving gateway where the called terminal is located perform local exchange for a calling terminal and the called terminal according to the first global ID information; and when the second global ID information is acquired, informing the base station where the calling terminal and the called terminal are located to perform local exchange for the calling terminal and the called terminal according to the second global ID information. The present invention can be used to solve the path redundancy phenomenon existing in VOIP of a mobile network, so as to reduce network traffic and network investment.

Description

Method for IP voice exchange and related equipment

The present invention relates to the field of communications technologies, and in particular, to a method for IP voice exchange and related devices. Background technique

VOIP (Voice over Iiiternei Protocol) is a method of transmitting voice over an IP (Intemet Protocol) network. The VOIP user plane information is negotiated between the terminals through the SIP (Session Initiation Protocol), and the VOIP call can be performed after the negotiation. The user plane information may include: an IP address port, a voice codec, and the like.

In the prior art, if two users are mobile users, the complete switching path when they perform VOIP calls may be: The calling terminal sequentially passes through the base station where the calling terminal is located, the serving gateway, and the packet switching gateway, and then It passes through the packet switching gateway, the serving gateway, and the base station where the called terminal is located, and finally reaches the called terminal. Although when both user terminals are on the same base station or the same service gateway, they still need to go through the above complete switching path when making VOIP calls, which inevitably leads to path redundancy, increased network traffic and Network investment. Summary of the invention

The embodiments of the present invention provide a method for IP voice exchange and related equipment, which can solve the path redundancy phenomenon of VOIP in a mobile network, so as to reduce network traffic and network investment.

A first aspect of the present invention provides a method for IP voice exchange, including:

Obtaining the first global ID information or the second global ID information;

When the first global ID information is obtained, the first global ID information is sent to the base station and the serving gateway where the called terminal is located, so that the base station and the serving gateway where the called terminal is located are according to the first global ID. The information is determined to be locally exchanged between the calling terminal and the called terminal when the relationship between the base station and the serving gateway where the calling terminal is located satisfies the local switching condition; When the second global ID information is obtained, the calling terminal or the base station where the called terminal is located is notified to perform local exchange between the calling terminal and the called terminal according to the second global ID information.

In the first possible implementation, the acquiring the first global ID information or the second global ID information includes:

The notification policy and charging rule function unit (PCRF) entity reports the global ID of the base station where the calling terminal is located and the serving gateway, and receives the received global ID of the base station where the calling terminal is located and the serving gateway as the first global ID. Information; or,

Notifying the PCRF entity to report the global ID of the base station where the calling terminal is located and the serving gateway, and the global ID of the base station where the called terminal is located and the serving gateway, and the received global ID of the base station where the calling terminal is located and the serving gateway And the global ID of the base station where the called terminal is located and the serving gateway is used as the second global ID information.

In combination with the first aspect, or the first possible implementation of the first aspect, in a second possible implementation,

The local exchange condition is that the base station and the serving gateway where the calling terminal is located are the same as the base station and the serving gateway where the called terminal is located; or

The local exchange condition is that the base station where the calling terminal is located has network communication capability with the base station where the called terminal is located.

With reference to the first aspect, or the first possible implementation manner of the first aspect, or the second possible implementation manner of the first aspect, in a third possible implementation manner, the sending the first global ID Information to the base station and service gateway where the called terminal is located, including:

Creating a local exchange request, and adding the first global ID information to the local exchange request; sending the local exchange request to a base station and a serving gateway where the called terminal is located.

With reference to the first aspect, or the first possible implementation of the first aspect, or the second possible implementation of the first aspect, or the third possible implementation of the first aspect, in a fourth possible In an implementation manner, the notifying the base station or the base station where the called terminal is located to locally exchange the calling terminal and the called terminal according to the second global ID information, including:

Determining, according to the second global ID information, whether the base station and the serving gateway where the calling terminal is located Both are the same as the base station and the serving gateway where the called terminal is located;

If it is determined to be the same, the calling terminal and the same base station where the called terminal is located are notified to perform local exchange between the calling terminal and the called terminal;

If it is determined to be different, further determining whether the base station where the calling terminal is located and the base station where the called terminal is located have network communication capability;

If it is determined that the network communication capability is determined, the base station where the calling terminal or the called terminal is located is notified to establish a local switching channel with the opposite base station, so that the calling terminal or the base station where the called terminal is located passes The local switching channel performs local exchange between the calling terminal and the called terminal.

With reference to the first aspect, or the first possible implementation of the first aspect, or the second possible implementation of the first aspect, or the third possible implementation of the first aspect, or the first aspect The four possible implementations, in the fifth possible implementation, also include:

Transmitting, by the calling terminal or the called terminal, an address translation relationship on a network address translation (NAT) gateway to a base station where the calling terminal or the called terminal is located, so as to facilitate the calling terminal and The called terminal performs local exchange.

With reference to the first aspect, or the first possible implementation of the first aspect, or the second possible implementation of the first aspect, or the third possible implementation of the first aspect, or the first aspect The four possible implementation manners, or the fifth possible implementation manner of the first aspect, in the sixth possible implementation manner, the method further includes:

When the supplementary service or the lawful interception is required, the calling terminal or the base station where the called terminal is located is notified to stop local exchange between the calling terminal and the called terminal.

A second aspect of the present invention provides a method for IP voice exchange, including:

Receiving, by the exchange control device, first global ID information or exchanging a determination result, where the exchange determination result is determined by the exchange control device according to the second global ID information;

When the first global ID information is received, the calling terminal and the called terminal are locally exchanged according to the first global ID information;

And when the exchange judgment result is received, the calling terminal and the called terminal are locally exchanged according to the exchange judgment result. In the first possible implementation,

The first global ID information includes a global ID of the base station where the calling terminal is located and the serving gateway. The second global ID information includes the global ID of the base station where the calling terminal is located and the serving gateway, and the base station where the called terminal is located. The global ID of the service gateway.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner, the local exchange between the calling terminal and the called terminal according to the first global ID information, including :

Determining, according to the first global ID information, whether the base station and the serving gateway where the calling terminal is located are the same as the local base station and the local serving gateway;

If it is determined to be the same, the calling terminal and the called terminal are locally exchanged; if it is determined to be different, further determining whether the base station where the calling terminal is located and the local base station have network communication capability ;

If it is determined that the network communication capability is available, a local switching channel is established with the base station where the calling terminal is located, to locally exchange the calling terminal and the called terminal through the local switching channel.

With reference to the first possible implementation of the second aspect, or the second possible implementation of the second aspect, in a third possible implementation manner, the Local exchange with the called terminal, including:

When the received handover judgment result is that the base station and the serving gateway where the calling terminal is located are the same as the base station and the serving gateway where the called terminal is located, performing the calling terminal and the called terminal. Local exchange

When the exchange judgment result is that the base station where the calling terminal is located and the base station where the called terminal is located has a network communication capability, establish a local switching channel with the base station where the calling terminal is located, Locally exchanging the calling terminal and the called terminal through the local switching channel.

With reference to the second aspect, or the first possible implementation of the second aspect, or the second possible implementation of the second aspect, or the third possible implementation of the second aspect, in the fourth possible Real In the current mode, it also includes:

Receiving, by the switching control device, an address translation relationship between the calling terminal or the called terminal on a network address translation (NAT) gateway, so as to perform local exchange between the calling terminal and the called terminal Or,

Presetting the address translation relationship between the calling terminal or the called terminal on the NAT gateway, so as to perform local exchange between the calling terminal and the called terminal.

With reference to the second possible implementation manner of the second aspect, or the third possible implementation manner of the second aspect, or the fourth possible implementation manner of the second aspect, in the fifth possible implementation manner, Includes:

When the base station where the calling terminal is located is handed over to the target base station, the local exchange relationship between the calling terminal and the called terminal is switched to the target base station and the local base station;

When the base station where the called terminal is located switches to the target base station, the local exchange relationship between the calling terminal and the called terminal is switched to the target base station and the base station where the calling terminal is located.

A third aspect of the present invention provides an exchange control apparatus, including:

An obtaining module, configured to acquire first global ID information or second global ID information;

a sending module, configured to: when the acquiring module acquires the first global ID information, send the first global ID information to a base station and a serving gateway where the called terminal is located, so that the base station and the service where the called terminal is located The gateway performs local exchange between the calling terminal and the called terminal when determining, according to the first global ID information, that the relationship between the base station and the serving gateway where the calling terminal is located meets the local switching condition;

a notification module, configured to: when the acquiring module acquires the second global ID information, notify the calling terminal or the base station where the called terminal is located according to the second global ID information to the calling terminal and the The called terminal performs local exchange.

In a first possible implementation manner, the acquiring module includes:

a first notification reporting unit, configured to notify a policy and charging rule function unit (PCRF) entity to report a global ID of a base station where the calling terminal is located and a serving gateway, and receive the received base station and the serving gateway of the calling terminal Global ID as the first global ID information; a second notification reporting unit, configured to notify the PCRF entity to report the global ID of the base station where the calling terminal is located and the serving gateway, and the global ID of the base station where the called terminal is located and the serving gateway, and the received calling terminal is located The global ID of the base station and the serving gateway, and the global ID of the base station where the called terminal is located and the serving gateway are used as the second global ID information.

With reference to the third aspect, or the first possible implementation of the third aspect, in a second possible implementation manner,

With the third aspect, or the first possible implementation manner of the third aspect, or the second possible implementation manner of the third aspect, in a third possible implementation manner, the sending module includes:

Creating an adding unit, configured to create a local exchange request, and adding the first global ID information to the local exchange request;

And a request sending unit, configured to send the local exchange request to a base station and a serving gateway where the called terminal is located.

With reference to the third aspect, or the first possible implementation of the third aspect, or the second possible implementation of the third aspect, or the third possible implementation of the third aspect, in the fourth possible In an implementation manner, the notification module includes:

a first determining unit, configured to determine, according to the second global ID information, whether the base station and the serving gateway where the calling terminal is located are the same as the base station and the serving gateway where the called terminal is located;

a notification exchange unit, configured to notify the calling terminal and the same base station where the called terminal is located to perform local exchange between the calling terminal and the called terminal, if the first determining unit determines that the same is the same ;

a second determining unit, configured to determine, if the first determining unit is different, whether the base station where the calling terminal is located and the base station where the called terminal is located have network communication capability; And if the second determining unit determines that the network communication capability is Knowing that the calling terminal or the base station where the called terminal is located establishes a local switching channel with the opposite base station, so that the calling terminal or the base station where the called terminal is located passes the local switching channel to the main The calling terminal and the called terminal perform local exchange.

With reference to the third aspect, or the first possible implementation manner of the third aspect, or the second possible implementation manner of the third aspect, or the third possible implementation manner of the third aspect, or the third aspect The four possible implementations, in the fifth possible implementation, also include:

a conversion relationship sending module, configured to send, by the calling terminal or the called terminal, an address translation relationship on a network address translation (NAT) gateway to a base station where the calling terminal or the called terminal is located, so as to facilitate Local exchange is performed between the calling terminal and the called terminal.

With reference to the third aspect, or the first possible implementation manner of the third aspect, or the second possible implementation manner of the third aspect, or the third possible implementation manner of the third aspect, or the third aspect The four possible implementation manners, or the fifth possible implementation manner of the third aspect, in the sixth possible implementation manner, the method further includes:

The notification stopping the switching module is configured to notify the calling terminal or the base station where the called terminal is located to stop local exchange between the calling terminal and the called terminal when supplementary service or lawful interception is required.

A fourth aspect of the present invention provides a base station, including:

a receiving module, configured to receive first global ID information sent by the switching control device, or exchange a determination result, where the exchange determination result is determined by the switching control device according to the second global ID information;

a first local switching module, configured to perform local exchange between the calling terminal and the called terminal according to the first global ID information when receiving the first global ID information;

And a second local switching module, configured to perform local exchange between the calling terminal and the called terminal according to the exchange judgment result when receiving the exchange judgment result.

In the first possible implementation,

The first global ID information includes a global ID of the base station where the calling terminal is located and the serving gateway; the second global ID information includes a global ID of the base station where the calling terminal is located and the serving gateway, And the global ID of the base station where the called terminal is located and the serving gateway.

In conjunction with the first possible implementation of the fourth aspect, in a second possible implementation, the first local switching module includes:

a first local determining unit, configured to determine, according to the first global ID information, whether the base station and the serving gateway where the calling terminal is located are the same as the local base station and the local serving gateway;

a first switching unit, configured to perform local exchange between the calling terminal and the called terminal if the first local determining unit determines that the same is the same;

a second local determining unit, configured to determine, if the first local determining unit is different, whether the base station where the calling terminal is located and the local base station have network communication capability; If the second local determining unit determines that the network communication capability is available, establishing a local switching channel with the base station where the calling terminal is located, to access the calling terminal and the called terminal by using the local switching channel. Perform local exchange.

With the first possible implementation of the fourth aspect, or the second possible implementation of the fourth aspect, in a third possible implementation, the second local switching module includes:

a second switching unit, configured to: when the received handover judgment result is that the base station and the serving gateway where the calling terminal is located are the same as the base station and the serving gateway where the called terminal is located, to the calling terminal Local exchange with the called terminal;

a second establishing unit, configured to: when the received handover judgment result is that the base station where the calling terminal is located and the base station where the called terminal is located have network communication capability, where the calling terminal is located The base station establishes a local switching channel to locally exchange the calling terminal and the called terminal through the local switching channel.

With reference to the fourth aspect, or the first possible implementation of the fourth aspect, or the second possible implementation of the fourth aspect, or the third possible implementation of the fourth aspect, in a fourth possible In the implementation, it also includes:

a conversion relationship receiving module, configured to receive an address translation relationship between the calling terminal or the called terminal on a network address translation (NAT) gateway sent by the switching control device, so as to facilitate the calling terminal and the Said called terminal for local exchange; And a preset module, configured to preset an address translation relationship between the calling terminal or the called terminal on a NAT gateway, so as to perform local exchange between the calling terminal and the called terminal.

With reference to the second possible implementation manner of the fourth aspect, or the third possible implementation manner of the fourth aspect, or the fourth possible implementation manner of the fourth aspect, in the fifth possible implementation manner, Includes:

a first switching module, configured to switch, when the base station where the calling terminal is located, to a target base station, to switch the local exchange relationship between the calling terminal and the called terminal to the target base station and the local Base station

a second switching module, configured to switch a local switching relationship between the calling terminal and the called terminal to the target base station and the primary when the base station where the called terminal is located to switch to a target base station Call the base station where the terminal is located.

A fifth aspect of the present invention provides a computer storage medium,

The computer storage medium can store a program that, when executed, includes some or all of the steps of a method of IP voice exchange provided by the first aspect.

A sixth aspect of the invention provides a computer storage medium,

The computer storage medium can store a program that, when executed, includes some or all of the steps of a method of IP voice exchange provided by the second aspect.

A seventh aspect of the present invention provides an exchange control apparatus, including: a processor, a communication interface, and a memory, wherein

The communication interface is configured to communicate with a base station and a service gateway;

The memory is used to store a program;

The processor is configured to execute the program to implement

Obtaining the first global ID information or the second global ID information;

When the first global ID information is obtained, the first global ID information is sent to the base station and the serving gateway where the called terminal is located, so that the base station and the serving gateway where the called terminal is located are according to the first global ID. The information is determined to be locally exchanged between the calling terminal and the called terminal when the relationship between the base station and the serving gateway where the calling terminal is located satisfies the local switching condition;

When the second global ID information is acquired, the calling terminal is notified according to the second global ID information. The base station or the base station where the called terminal is located performs local exchange between the calling terminal and the called terminal. In a first possible implementation manner, the processor is specifically configured to:

With reference to the seventh aspect, or the first possible implementation of the seventh aspect, in a second possible implementation manner,

With reference to the seventh aspect, or the first possible implementation manner of the seventh aspect, or the second possible implementation manner of the seventh aspect, in a third possible implementation manner, the processor is specifically configured to:

In conjunction with the seventh aspect, or the first possible implementation of the seventh aspect, or the second possible implementation of the seventh aspect, or the third possible implementation of the seventh aspect, in a fourth possible In an implementation manner, the processor is specifically configured to:

Determining, according to the second global ID information, whether the base station and the serving gateway where the calling terminal is located are the same as the base station and the serving gateway where the called terminal is located;

If it is determined to be different, further determining, by the base station where the calling terminal is located, and the called terminal Whether there is network communication capability between the base stations;

With reference to the seventh aspect, or the first possible implementation manner of the seventh aspect, or the second possible implementation manner of the seventh aspect, or the third possible implementation manner of the seventh aspect, or the seventh aspect In a fifth possible implementation manner, the processor is further configured to:

With reference to the seventh aspect, or the first possible implementation manner of the seventh aspect, or the second possible implementation manner of the seventh aspect, or the third possible implementation manner of the seventh aspect, or the seventh aspect The fourth possible implementation manner, or the fifth possible implementation manner of the seventh aspect, in the sixth possible implementation manner, the processor is further configured to:

An eighth aspect of the present invention provides a base station, including: a processor, a communication interface, and a memory, wherein

The communication interface is configured to communicate with an exchange control device;

The memory is used to store a program;

The processor is configured to execute the program to implement

When receiving the exchange judgment result, the calling terminal and the called terminal perform local exchange according to the exchange judgment result.

In the first possible implementation, The first global ID information includes a global ID of the base station where the calling terminal is located and the serving gateway. The second global ID information includes the global ID of the base station where the calling terminal is located and the serving gateway, and the base station where the called terminal is located. The global ID of the service gateway.

In conjunction with the first possible implementation of the eighth aspect, in a second possible implementation, the processor is specifically configured to:

With reference to the first possible implementation of the eighth aspect, or the second possible implementation of the eighth aspect, in a third possible implementation, the processor is specifically configured to:

With reference to the eighth aspect, or the first possible implementation manner of the eighth aspect, or the second possible implementation manner of the eighth aspect, or the third possible implementation manner of the eighth aspect, in the fourth possible In an implementation manner, the processor is further configured to:

Receiving, by the switching control device, an address translation relationship between the calling terminal or the called terminal on a network address translation (NAT) gateway, so as to facilitate the calling terminal and the called terminal Perform local exchange; or,

With reference to the second possible implementation manner of the eighth aspect, or the third possible implementation manner of the eighth aspect, or the fourth possible implementation manner of the eighth aspect, in the fifth possible implementation manner, The processor is also used to:

It can be seen that, by sending the first global ID information to the base station and the serving gateway where the called terminal is located, the base station and the serving gateway where the called terminal is located can make the calling terminal and the called terminal according to the first global ID information. The terminal is called to perform local exchange, or the base station where the called terminal or the called terminal is located may be locally exchanged between the calling terminal and the called terminal according to the second global ID information, so as to solve the path redundancy of the VOIP in the mobile network. Phenomenon, which reduces network traffic and network investment. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments will be briefly described below. Obviously, the drawings in the following description are only some of the present invention. For the embodiments, those skilled in the art can obtain other drawings according to the drawings without any creative work.

1 is a schematic flowchart of a method for IP voice exchange according to an embodiment of the present invention; FIG. 2 is a schematic flowchart of a method for local switching according to an embodiment of the present invention; A schematic flowchart of a method for IP voice exchange; FIG. 4 is a schematic flowchart of another method for local switching according to an embodiment of the present invention; FIG. 5 is a schematic structural diagram of a switching control device according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an acquiring module according to an embodiment of the present disclosure; FIG. 7 is a schematic structural diagram of a sending module according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a notification module according to an embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram of another exchange control apparatus according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a base station according to an embodiment of the present disclosure;

FIG. 11 is a schematic structural diagram of a first local switching module according to an embodiment of the present invention; FIG. 12 is a schematic structural diagram of a second local switching module according to an embodiment of the present invention; A schematic structural diagram of a base station;

FIG. 14 is a schematic structural diagram of still another switching control apparatus according to an embodiment of the present invention; FIG. 15 is a schematic structural diagram of another base station according to an embodiment of the present invention. detailed description

BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative work are within the scope of the present invention.

FIG. 1 is a schematic flowchart diagram of a method for IP voice exchange according to an embodiment of the present invention, where the method includes:

S101. Acquire first global ID information or second global ID information.

Specifically, the switching control device may obtain the first global ID information or the second global ID information, and the switching control device may be a CSCF (CailSessionControlFimctio Call Control Entity) entity in an IMS (IP Multimedia Subsystem) network.

When the calling terminal initiates a VOIP call in the IMS network, the switching control device may initiate an acquisition request to obtain the first global ID information or the second global ID information to the PCRF (Policy and Charging Rules Function). a unit, the specific process may be: informing the PCRF entity to report the global ID of the base station where the calling terminal is located and the serving gateway, and the received global ID of the base station where the calling terminal is located and the serving gateway as the first global ID information; or, the PCRF entity is notified to report the global ID of the base station where the calling terminal is located and the serving gateway, And the global ID of the base station where the called terminal is located and the serving gateway, and the received global ID of the base station where the calling terminal is located and the serving gateway, and the global ID of the base station where the called terminal is located and the serving gateway are used as the second Global ID information. The global ID can uniquely identify the network element where the network element is located and the context of the terminal in the network element. The specific process of the PCRF entity reporting the global ID of the base station where the calling terminal is located and the serving gateway may be: The PCRF entity initiates an IP-CAN (IP-Connectivity Access Network) session modification of the calling terminal. In the process, the packet switching gateway is notified to report the global ID of the base station and the serving gateway where the calling terminal is located, the packet switching gateway notifies the serving gateway, the serving gateway notifies the MME (Mobility Management Entity), and the MME notifies the base station. The base station reports the global ID of the base station where the calling terminal is located to the MME, and the MME forwards the MME to the serving gateway. The serving gateway sets the global ID of the base station where the calling terminal is located and the global ID of the serving gateway where the calling terminal is located (ie, the first global ID information). The packet is sent to the packet switching gateway, and the packet switching gateway reports the first global ID information to the PCRF entity, and finally the PCRF entity reports the first global ID information to the switching control device. The PCRF entity reports the global ID of the base station where the calling terminal is located and the global ID of the serving gateway, and the specific process of the base station where the called terminal is located and the global ID of the serving gateway, and the PCRF entity reports the base station where the calling terminal is located and The specific process of the global ID of the serving gateway is substantially the same, that is, the PCRF entity separately initiates an IP-CAN session modification process for the calling terminal and an IP-CAN session modification process for the called terminal to obtain the calling terminal respectively. The global ID of the base station and the serving gateway, and the global ID of the base station where the called terminal is located and the serving gateway, thereby obtaining the second global ID information.

S102, when acquiring the first global ID information, sending the first global ID information to the base station and the serving gateway where the called terminal is located;

Specifically, when the switching control device acquires the first global ID information, the switching control device may send the first global ID information to the base station and the serving gateway where the called terminal is located, so that the called terminal When the base station and the serving gateway determine that the relationship between the base station and the serving gateway where the calling terminal is located satisfies the local switching condition according to the first global ID information, perform the calling terminal and the called terminal. Local exchange. The local exchange condition is that the base station and the serving gateway where the calling terminal is located are the same as the base station and the serving gateway where the called terminal is located; or The local exchange condition is that the base station where the calling terminal is located has network communication capability with the base station where the called terminal is located. When the local exchange condition is satisfied that the base station and the serving gateway where the calling terminal is located are the same as the base station and the serving gateway where the called terminal is located, the base station directly performs the calling terminal and the called terminal. Local exchange, the exchange path of the local exchange is: the calling terminal to the base station, and then to the called terminal. When the local exchange condition is satisfied that the base station where the calling terminal is located and the base station where the called terminal is located, the base station where the called terminal is located will establish a local switching channel with the base station where the calling terminal is located, Performing local exchange between the calling terminal and the called terminal by using the local switching channel, where the switching path of the local switching is: the calling terminal to the base station where the calling terminal is located, and then through the local switching channel to the called party The base station where the terminal is located, and finally the called terminal.

The process of sending the first global ID information to the base station and the serving gateway where the called terminal is located may be: creating a local exchange request, and adding the first global ID information to the local exchange request; Sending the local exchange request to the base station and the serving gateway where the called terminal is located. The specific process of sending the local exchange request to the base station and the serving gateway where the called terminal is located may be: the switching control apparatus notifying the PCRF entity to initiate an IP-CAN session modification process on the called terminal, and In the process, the local exchange request is sent to the packet switching gateway where the called terminal is located, and the packet switching gateway forwards to the serving gateway where the called terminal is located, and the serving gateway forwards to the MME, and the MME forwards the packet to the base station where the called terminal is located. At this time, the base station and the serving gateway where the called terminal is located will respectively obtain the local exchange request. The base station and the serving gateway where the called terminal is located will obtain the first global ID information from the local exchange request, and determine, according to the first global ID information, a base station and a serving gateway where the calling terminal is located. When the relationship between the two meets the local exchange condition, the calling terminal and the called terminal are locally exchanged.

S103. When the second global ID information is obtained, notify the calling terminal or the base station where the called terminal is located to locally exchange the calling terminal and the called terminal according to the second global ID information. ;

Specifically, when the second global ID information is obtained, the switching control device may notify, according to the second global ID information, the calling terminal or the base station where the called terminal is located, to the calling terminal and the The called terminal performs local exchange. The switching control device is in accordance with the second global ID The information is determined that the base station and the serving gateway where the calling terminal is located are the same as the base station and the serving gateway where the called terminal is located, and notify the calling terminal and the same base station where the called terminal is located to the calling terminal and the The called terminal performs local exchange. Alternatively, the switching control device notifies the calling terminal or the network communication capability when the base station where the calling terminal is located and the base station where the called terminal is located according to the second global ID information The base station where the called terminal is located performs local exchange between the calling terminal and the called terminal.

The switching control apparatus provided by the embodiment of the present invention may further send an address translation relationship between the calling terminal or the called terminal on the NAT gateway to the base station where the calling terminal or the called terminal is located, so as to facilitate Performing local exchange between the calling terminal and the called terminal;

Specifically, there is a NAT on the interface between the PCRF entity and the IMS (Network Address

Translation, network address translation) Gateway, which is responsible for converting the private IP address and port of the terminal into a public network ip address and port. The switching control device may notify the NAT gateway to insert the IP/PORT conversion relationship of the calling terminal when the PCRF entity reports the first global ID information or the second global ID information to the IMS, and notify the NAT gateway to send the locality to the called terminal at the IMS. Transmitting a request to insert an IP/PORT conversion relationship of the called terminal, so that the switching control device can transmit the obtained IP/PORT conversion relationship between the calling terminal and the called terminal to the calling terminal or the called terminal. The base station is located to facilitate local exchange between the calling terminal and the called terminal. After the local exchange, the IP flow no longer passes through the NAT gateway, so the base station can convert the IP address and port of the terminal through the received IP/PORT conversion relationship between the calling terminal and the called terminal, so as to successfully complete the Local exchange between the calling terminal and the called terminal.

The switching control apparatus provided by the embodiment of the present invention may further notify the calling terminal or the base station where the called terminal is located to stop performing on the calling terminal and the called terminal when a supplementary service or lawful interception is required. Local exchange

Specifically, when supplementary service or lawful interception occurs, the switching control apparatus may send a stop local exchange instruction to the PCRF entity, so that the PCRF entity notifies the calling terminal or the packet switching gateway where the called terminal is located to forward the stop local exchange. Directing to the corresponding service gateway, and then notifying the MME by the serving gateway, the MME notifying the corresponding base station, so that the calling terminal or the called terminal The base station where the base station is located may stop local exchange between the calling terminal and the called terminal. It can be seen that, by sending the first global ID information to the base station and the serving gateway where the called terminal is located, the base station and the serving gateway where the called terminal is located can make the calling terminal and the called terminal according to the first global ID information. The terminal is called to perform local exchange, or the base station where the called terminal or the called terminal is located may be locally exchanged between the calling terminal and the called terminal according to the second global ID information, so as to solve the path redundancy of the VOIP in the mobile network. Phenomenon, which reduces network traffic and network investment.

Further, referring to FIG. 2, FIG. 2 is a schematic flowchart of a local exchange method according to an embodiment of the present invention. The method of the embodiment of the present invention may correspond to S103 in the corresponding embodiment of FIG. 1 described above. The method of the embodiment of the present invention specifically includes:

S201, determining, according to the second global ID information, whether the base station and the service gateway where the calling terminal is located are the same as the base station and the serving gateway where the called terminal is located;

Specifically, the second global ID information includes the global ID of the base station where the calling terminal is located and the serving gateway, and the global ID of the base station where the called terminal is located and the serving gateway, so the base station and the service where the calling terminal is located are determined. Whether the global ID of the gateway is the same as the global ID of the base station where the called terminal is located and the serving gateway, and the base station and the serving gateway where the calling terminal is located are both the base station and the serving gateway where the called terminal is located. the same. When it is determined that the global IDs of the base station where the calling terminal is located and the serving gateway are the same as the global ID of the base station where the called terminal is located and the serving gateway, the base station and the serving gateway where the calling terminal is located are both The base station where the terminal is called is the same as the serving gateway.

S202, notifying that the calling terminal and the same base station where the called terminal is located perform local exchange between the calling terminal and the called terminal;

Specifically, when it is determined in S201 that the base station and the serving gateway where the calling terminal is located are the same as the base station and the serving gateway where the called terminal is located, the switching control apparatus may notify the calling terminal and the called party The same base station where the terminal is located performs local exchange between the calling terminal and the called terminal, and the switching path of the local exchange is: the calling terminal to the base station, and then to the called terminal.

S203. Determine whether the base station where the calling terminal is located and the base station where the called terminal is located have network communication capability. Specifically, when it is determined in S201 that the base station and the serving gateway where the calling terminal is located are not the same as the base station and the serving gateway where the called terminal is located, the switching control apparatus may further determine the base station where the calling terminal is located. Whether there is network communication capability between the base station where the called terminal is located, that is, whether IP interworking between the two base stations is possible.

S204, notifying the calling terminal or the base station where the called terminal is located to establish a local switching channel with the opposite base station;

Specifically, when it is determined in S203 that the base station where the calling terminal is located and the base station where the called terminal is located have network communication capability, the switching control apparatus may notify the calling terminal or the called terminal The base station establishes a local switching channel with the peer base station, so that the calling terminal or the base station where the called terminal is located performs local exchange between the calling terminal and the called terminal through the local switching channel. The switching path of the local exchange is: the calling terminal to the base station where the calling terminal is located, and then the local switching channel to the base station where the called terminal is located, and finally to the called terminal.

The embodiment of the present invention determines whether the local exchange can be performed between the calling terminal and the called terminal on the IMS side, and notifies the base station to locally exchange the calling terminal and the called terminal when it is determined that the local exchange can be performed. Path redundancy exists in VOIP in mobile networks, thereby reducing network traffic and network investment.

Referring to FIG. 3, it is a schematic flowchart of another method for IP voice exchange according to an embodiment of the present invention, where the method includes:

S301. Receive the first global ID information sent by the switching control device or exchange the determination result. Specifically, the base station may receive the first global ID information sent by the switching control device or exchange the determination result, where the base station specifically refers to the location of the called terminal. Base station. The exchange judgment result is determined by the exchange control device according to the second global ID information. The first global ID information includes a global ID of the base station where the calling terminal is located and the serving gateway. The second global ID information includes the global ID of the base station where the calling terminal is located and the serving gateway, and the base station where the called terminal is located. And the global ID of the service gateway.

Before the base station where the called terminal is located receives the first global ID information sent by the switching control device or exchanges the determination result, the switching control device needs to acquire the first global ID information or the second global ID first. For the specific process of the first global ID information or the second global ID information, the switch control device may refer to S101 in the corresponding embodiment of FIG. 1 , and no further description is provided herein.

5302. When receiving the first global ID information, perform local exchange between the calling terminal and the called terminal according to the first global ID information.

Specifically, when the base station where the called terminal is located receives the first global ID information, the base station where the called terminal is located may refer to the calling terminal and the called terminal according to the first global ID information. Perform local exchange. When it is determined that the calling terminal and the called terminal are in the same base station and the same serving gateway according to the first global ID information, the base station directly performs local exchange between the calling terminal and the called terminal; When the first global ID information determines that the base station where the calling terminal is located has network communication capability with the local base station, the local base station may also use the base station where the calling terminal is located to the calling terminal. Local exchange with the called terminal.

S303, when receiving the exchange judgment result, performing local exchange on the calling terminal and the called terminal according to the exchange judgment result;

Specifically, when receiving the exchange judgment result, the base station where the called terminal is located may locally exchange the calling terminal and the called terminal according to the exchange judgment result. When the received handover judgment result is that the base station and the serving gateway where the calling terminal is located are the same as the base station and the serving gateway where the called terminal is located, the calling terminal and the called party are The terminal performs local exchange, where the local exchange path is: the calling terminal to the base station, and then to the called terminal. When the received exchange judgment result is that the base station where the calling terminal is located and the base station where the called terminal is located has a network communication capability, establish a local switching channel with the base station where the calling terminal is located, to Locally switching between the calling terminal and the called terminal by using the local switching channel, where the local switching path is: the calling terminal to the base station where the calling terminal is located, and then through the local switching channel to the Call the base station where the terminal is located, and finally the called terminal.

In addition, the switching control device may also send the exchange judgment result to the base station where the calling terminal is located, so that the base station where the calling terminal is located may also refer to the calling terminal and the The called terminal performs local exchange.

The base station provided by the embodiment of the present invention may further receive the primary sent by the switching control apparatus. Calling the terminal or the address translation relationship of the called terminal on the NAT gateway, so as to facilitate local exchange between the calling terminal and the called terminal; or preset the calling terminal or the called terminal An address translation relationship on the NAT gateway to facilitate local exchange between the calling terminal and the called terminal;

Specifically, there is a NAT gateway on the interface between the PCRF entity and the IMS, and the NAT gateway is responsible for converting the private IP address and port of the terminal into a public network IP address and port. The switching control device may notify the NAT gateway to insert the IP/PORT conversion relationship of the calling terminal when the first global ID information or the second global ID information is reported to the IMS by the PCRF entity, and notify the NAT gateway to send the locality to the called terminal at the IMS. Inserting an IP/PORT conversion relationship of the called terminal when the request is exchanged, to obtain an address translation relationship between the calling terminal or the called terminal on the NAT gateway, and at this time, the base station may receive the information sent by the switching control device. The address translation relationship between the calling terminal or the called terminal on the NAT gateway is used to convert the IP address and port of the terminal, so that the local exchange between the calling terminal and the called terminal can be successfully completed.

Certainly, the base station may also preset an address translation relationship between the calling terminal or the called terminal on the NAT gateway, so as to perform local exchange between the calling terminal and the called terminal. For example, if the calling terminal and the called terminal are in the same base station, if the source IP/source port of the data packet sent by the calling terminal (assumed to be IP1/PORT1) corresponds to the destination IP address of the data packet sent by the called terminal. Destination port (assumed to be IP2/PORT2), and the destination IP/destination port of the packet sent by the calling terminal (assumed to be IP3/PORT3) corresponds to the destination IP/destination port of the packet sent by the called terminal (assuming IP4) /PORT4), when the base station and the serving gateway receive the data packet sent by the calling terminal, convert IP1/PORT1 to IP2/PORT2, convert IP3/PORT3 to IP4/PORT4, and then send it to the called terminal; or When receiving the data packet sent by the called terminal, the base station and the serving gateway convert IP2/PORT2 to IP1/PORT1, convert IP4/PORT4 to IP3/PORT3, and then send it to the calling terminal.

The base station provided by the embodiment of the present invention may further switch the local switching relationship between the calling terminal and the called terminal to the target base station when the base station where the calling terminal is located is handed over to the target base station. The local base station; when the base station where the called terminal is located switches to the target base station, The local exchange relationship between the calling terminal and the called terminal is switched to the target base station and the base station where the calling terminal is located;

Specifically, in a case where the base station where the calling terminal is located and the base station where the called terminal is located perform local exchange between the calling terminal and the called terminal, when the base station where the calling terminal is located switches to the target base station, the called terminal The base station in which the base station is located may switch the local exchange relationship between the calling terminal and the called terminal to the target base station and the local base station, that is, the base station where the calling terminal is located when switching to the target base station, The global ID of the base station and the serving gateway where the terminal is located is sent to the target base station, so that the target base station determines whether the target base station and the base station where the called terminal has the network communication capability according to the global ID of the base station and the serving gateway where the called terminal is located, if the network has the network For communication capability, the target base station establishes a local switching channel with the base station where the called terminal is located to perform local exchange between the calling terminal and the called terminal.

The base station where the called terminal is located may also switch the local exchange relationship between the calling terminal and the called terminal to the target base station and the primary The base station where the terminal is located, that is, the base station where the called terminal is located, when switching to the target base station, transmits the global ID of the base station and the serving gateway where the calling terminal is located to the target base station, so that the target base station is based on the base station and service where the calling terminal is located. The global ID of the gateway determines whether the base station and the base station where the calling terminal is located have network communication capability. If the network communication capability is available, the target base station establishes a local switching channel with the base station where the calling terminal is located, to locally locate the calling terminal and the called terminal. exchange.

The base station provided by the embodiment of the present invention, by receiving the first global ID information or the exchange judgment result sent by the exchange control device, may enable the base station to refer to the calling terminal and the called terminal according to the first global ID information or the exchange judgment result. Local exchange is performed to solve the path redundancy phenomenon of VOIP in the mobile network, thereby reducing network traffic and network investment.

Further, please refer to FIG. 4, which is a schematic flowchart diagram of another method for local switching according to an embodiment of the present invention. The method of the embodiment of the present invention may correspond to S302 in the corresponding embodiment of FIG. 3 described above. The method of the embodiment of the present invention specifically includes:

S401. Determine, according to the first global ID information, whether the base station and the service gateway where the calling terminal is located are the same as the local base station and the local serving gateway.

Specifically, when the base station where the called terminal is located receives the first global ID information, the The base station where the terminal is located may determine, according to the first global ID information, whether the base station and the serving gateway where the calling terminal is located are the same as the local base station and the local serving gateway.

S402. Perform local exchange between the calling terminal and the called terminal.

Specifically, when it is determined in S401 that the base station and the serving gateway where the calling terminal is located are the same as the local base station and the local serving gateway, the calling terminal and the called terminal are both in the same base station, and the base station can be used in the base station. The first global ID information determines a context of the calling terminal to locally exchange the calling terminal and the called terminal, and the switching path of the local exchange is: the calling terminal to the base station, and then to the called terminal.

S403. Determine whether the base station where the calling terminal is located and the local base station have network communication capability.

Specifically, when it is determined in S401 that the base station and the serving gateway where the calling terminal is located are not the same as the local base station and the local monthly service gateway, the base station where the called terminal is located may further determine the base station where the calling terminal is located. Whether there is network communication capability with the local base station. The determining process may be: the base station where the called terminal is located sends a local exchange channel request to the base station where the calling terminal is located, and adds the first global ID information to the calling local terminal, so that the calling terminal The base station where the base station is located may determine whether to perform local exchange with the calling terminal according to the first global ID information. If it is determined that local exchange is to be performed, the base station that responds to the called terminal may perform local to the calling terminal and the called terminal. Exchanging, so that the base station where the called terminal is located can determine that the base station where the calling terminal is located and the base station where the called terminal is located have network communication capability; otherwise, the base station where the called terminal is located can determine the primary There is no network communication capability between the base station where the terminal is located and the base station where the called terminal is located.

S404. Establish a local switching channel with the base station where the calling terminal is located, to locally exchange the calling terminal and the called terminal by using the local switching channel.

Specifically, when it is determined by S403 that the base station where the calling terminal is located has network communication capability with the local base station, it indicates that the base station where the calling terminal is located responds to the base station where the called terminal is located, and can be called to the calling terminal and the called party. The terminal performs local switching. At this time, the base station where the called terminal is located may establish a local switching channel with the base station where the calling terminal is located, to end the calling terminal through the local switching channel. The local exchange is performed between the terminal and the called terminal. The switching path of the local exchange is: the calling terminal to the base station where the calling terminal is located, and then the local switching channel to the base station where the called terminal is located, and finally to the called terminal. When it is determined in S403 that the base station where the calling terminal is located does not have network communication capability with the local base station, local switching cannot be performed.

The base station where the called terminal is located may also add the address translation relationship between the obtained calling terminal and the called terminal to the base station where the called terminal is located to send the local switching channel request to the base station where the calling terminal is located. In the local switching channel request, the base station where the calling terminal is located and the base station where the called terminal is located can smoothly complete the local exchange between the calling terminal and the called terminal according to the address translation relationship.

The base station provided by the embodiment of the present invention can locally exchange the calling terminal and the called terminal according to the received first global ID information, so as to solve the path redundancy phenomenon of the VOIP in the mobile network, thereby reducing network traffic and the network. investment.

FIG. 5 is a schematic structural diagram of a switching control apparatus 1 according to an embodiment of the present invention. The switching control apparatus 1 may include: an obtaining module 11, a sending module 12, and a notification module 13; Obtaining the first global ID information or the second global ID information. Specifically, the obtaining module 11 may obtain the first global ID information or the second global ID information, where the switching control device 1 may be in the IMS network. CSCF entity. When the calling terminal initiates a VOIP call in the IMS network, the acquiring module 11 may initiate an acquisition request for acquiring the first global ID information or the second global ID information to the PCRF entity, so that the PCRF entity is from the relevant base station and the service. The first global ID information or the second global ID information is obtained in the gateway, and the first global ID information or the second global ID information is sent to the obtaining module 11.

The sending module 12 is configured to: when the acquiring module 11 acquires the first global ID information, send the first global ID information to the base station and the serving gateway where the called terminal is located, so that the called terminal is located And determining, by the base station and the serving gateway, that the relationship between the base station and the serving gateway where the calling terminal is located meets the local switching condition according to the first global ID information, and locally performs the calling terminal and the called terminal. Exchange

Specifically, when the acquiring module 11 obtains the first global ID information, the sending module The first global ID information may be sent to the base station and the serving gateway where the called terminal is located, so that the base station and the serving gateway where the called terminal is located are determined according to the first global ID information, and the calling terminal is located. When the relationship between the base station and the serving gateway satisfies the local switching condition, the calling terminal and the called terminal are locally exchanged. The local switching condition is that the base station and the serving gateway where the calling terminal is located are the same as the base station and the serving gateway where the called terminal is located; or the local switching condition is the base station where the calling terminal is located. There is network communication capability between the base station where the called terminal is located. When the local exchange condition is satisfied that the base station and the serving gateway where the calling terminal is located are the same as the base station and the serving gateway where the called terminal is located, the base station directly performs the calling terminal and the called terminal. Local exchange, the exchange path of the local exchange is: the calling terminal to the base station, and then to the called terminal. When the local exchange condition is satisfied that the base station where the calling terminal is located and the base station where the called terminal is located, the base station where the called terminal is located will establish a local switching channel with the base station where the calling terminal is located, Performing local exchange between the calling terminal and the called terminal by using the local switching channel, where the switching path of the local switching is: the calling terminal to the base station where the calling terminal is located, and then through the local switching channel to the called party The base station where the terminal is located, and finally the called terminal.

The notification module 13 is configured to notify, when the acquiring module 11 acquires the second global ID information, the base station where the calling terminal or the called terminal is located according to the second global ID information, to the main Calling the terminal and the called terminal to perform local exchange;

Specifically, when the acquiring module 11 obtains the second global ID information, the notification module 13 may notify the calling terminal or the base station where the called terminal is located according to the second global ID information. The calling terminal and the called terminal perform local exchange. The notification module 13 notifies the calling terminal and the called party when determining that the base station and the serving gateway where the calling terminal is located are the same as the base station and the serving gateway where the called terminal is located according to the second global ID information. The same base station where the terminal is located performs local exchange between the calling terminal and the called terminal. Or, the notification module 13 notifies the calling terminal or the network terminal when the base station where the calling terminal is located and the base station where the called terminal is located according to the second global ID information The base station where the called terminal is located performs local exchange between the calling terminal and the called terminal.

Further, referring to FIG. 6, FIG. 6 is a schematic structural diagram of the acquiring module 11 in FIG. 5, The obtaining module 11 may include: a first notification reporting unit 111 and a second notification reporting unit 112. The first notification reporting unit 111 is configured to notify the policy and charging rule function unit (PCRF) entity to report the calling terminal. a global ID of the base station and the serving gateway, and the received global ID of the base station where the calling terminal is located and the serving gateway is used as the first global ID information;

Specifically, the first notification reporting unit 111 may notify the PCRF entity to report the global ID of the base station and the serving gateway where the calling terminal is located. The global ID can uniquely identify the network element in which it resides and the context of the terminal in the network element. The specific process of the PCRF entity reporting the global ID of the base station where the calling terminal is located and the serving gateway may be: The PCRF entity initiates an IP-CAN session modification process for the calling terminal, and in this process, notifies the packet switching gateway to report the main message. The global ID of the base station and the serving gateway where the terminal is located, the packet switching gateway notifies the serving gateway, and the serving gateway notifies the MME that the MME notifies the base station. At this time, the base station reports the global ID of the base station where the calling terminal is located to the MME, and the MME forwards the message to the serving gateway. The serving gateway reports the global ID of the base station where the calling terminal is located and the global ID of the serving gateway where the calling terminal is located (that is, the first global ID information) to the packet switching gateway, and the packet switching gateway reports the first global ID information to the PCRF. The entity, the last PCRF entity reports the first global ID information to the first notification reporting unit 111.

The second notification reporting unit 112 is configured to notify the PCRF entity to report the global ID of the base station where the calling terminal is located and the serving gateway, and the global ID of the base station where the called terminal is located and the serving gateway, and receive the received primary The global ID of the base station where the terminal is located and the serving gateway, and the global ID of the base station where the called terminal is located and the serving gateway are used as the second global ID information;

Specifically, the second notification reporting unit 112 may notify the PCRF entity to report the global ID of the base station where the calling terminal is located and the serving gateway, and the global ID of the base station where the called terminal is located and the serving gateway. The PCRF entity reports the global ID of the base station where the calling terminal is located and the global ID of the serving gateway, and the specific process of the base station where the called terminal is located and the global ID of the serving gateway, and the PCRF entity reports the base station where the calling terminal is located and The specific process of the global ID of the serving gateway is substantially the same, that is, the PCRF entity separately initiates an IP-CAN session modification process for the calling terminal and an IP-CAN session modification process for the called terminal to obtain the calling terminal respectively. The global ID of the base station and the serving gateway, and the global ID of the base station where the called terminal is located and the serving gateway. And the second global ID information is obtained.

Further, referring to FIG. 7, which is a schematic structural diagram of the sending module 12 in FIG. 5, the sending module 12 may include: a creating and adding unit 121, and a request sending unit 122;

The creating and adding unit 121 is configured to create a local exchange request, and add the first global ID information to the local exchange request.

The request sending unit 122 is configured to send the local exchange request to a base station and a serving gateway where the called terminal is located;

Specifically, after the creation adding unit 121 creates a local exchange request, the request sending unit 122 may send the local exchange request to the base station and the serving gateway where the called terminal is located. The specific process of sending the local exchange request to the base station and the serving gateway where the called terminal is located may be: the request sending unit 122 notifies the PCRF entity to initiate an IP-CAN session modification process on the called terminal. And in the process, the local exchange request is sent to the packet switching gateway where the called terminal is located, and the packet switching gateway forwards to the serving gateway where the called terminal is located, the serving gateway forwards to the MME, and the MME forwards the packet to the base station where the called terminal is located. At this time, the base station and the serving gateway where the called terminal is located will respectively obtain the local exchange request. The base station and the serving gateway where the called terminal is located will obtain the first global ID information from the local exchange request, and determine, according to the first global ID information, a base station and a serving gateway where the calling terminal is located. When the relationship between the two meets the local exchange condition, the calling terminal and the called terminal are locally exchanged.

Further, referring to FIG. 8 , which is a schematic structural diagram of the notification module 13 in FIG. 5 , the notification module 13 may include: a first determining unit 131, a notification switching unit 132, a second determining unit 133, and a notification establishing unit. 134;

The first determining unit 131 is configured to determine, according to the second global ID information, whether the base station and the serving gateway where the calling terminal is located are the same as the base station and the serving gateway where the called terminal is located; The second global ID information includes a global ID of the base station where the calling terminal is located and the serving gateway, and a global ID of the base station where the called terminal is located and the serving gateway, so the first determining unit 131 determines the base station where the calling terminal is located. And whether the global ID of the serving gateway is the same as the global ID of the base station where the called terminal is located and the serving gateway, and the caller terminal can be determined. Whether the base station and the serving gateway where the terminal is located are the same as the base station and the serving gateway where the called terminal is located. When the first determining unit 131 determines that the global ID of the base station where the calling terminal is located and the serving gateway is the same as the global ID of the base station where the called terminal is located and the serving gateway, the base station where the calling terminal is located and The serving gateways are the same as the base station and the serving gateway where the called terminal is located.

The notification exchange unit 132 is configured to notify the same base station where the calling terminal and the called terminal are located to the calling terminal and the called party if the first determining unit 131 determines that the same is the same. The terminal performs local exchange;

Specifically, when the first determining unit 131 determines that the base station and the serving gateway where the calling terminal is located are the same as the base station and the serving gateway where the called terminal is located, the notification exchange unit 132 may notify the main The calling terminal and the same base station where the called terminal is located perform local exchange between the calling terminal and the called terminal, and the switching path of the local exchange is: the calling terminal to the base station, and then to the called terminal.

The second determining unit 133 is configured to determine, if the first determining unit 131 is different, whether the base station where the calling terminal is located and the base station where the called terminal is located have network communication capability;

Specifically, when the first determining unit 131 determines that the base station and the serving gateway where the calling terminal is located are not the same as the base station and the serving gateway where the called terminal is located, the second determining unit 133 may further determine Whether the base station where the calling terminal is located and the base station where the called terminal is located have network communication capability, that is, whether IP connectivity between the two base stations can be determined.

The notification establishing unit 134 is configured to notify the base station where the calling terminal or the called terminal is located to establish a local switching channel with the opposite base station, if the second determining unit 133 determines that the network communication capability is determined, And causing, by the calling terminal or the base station where the called terminal is located, locally exchange the calling terminal and the called terminal by using the local switching channel;

Specifically, when the second determining unit 133 determines that the base station where the calling terminal is located and the base station where the called terminal is located has network communication capability, the notification establishing unit 134 may notify the calling terminal. Or the base station where the called terminal is located establishes a local switching channel with the opposite base station, so that the calling terminal or the base station where the called terminal is located to the calling party through the local switching channel The terminal and the called terminal perform local exchange, and the switching path of the local exchange is: the calling terminal to the base station where the calling terminal is located, and then the local switching channel to the base station where the called terminal is located, and finally to the called terminal.

It can be seen that, by sending the first global ID information to the base station and the serving gateway where the called terminal is located, the base station and the serving gateway where the called terminal is located can make the calling terminal and the called terminal according to the first global ID information. The terminal is called to perform local exchange, or the base station where the called terminal or the called terminal is located may be locally exchanged between the calling terminal and the called terminal according to the second global ID information, so as to solve the path redundancy of the VOIP in the mobile network. Phenomenon, which reduces network traffic and network investment.

FIG. 9 is a schematic structural diagram of another switching control apparatus 1 according to an embodiment of the present invention. The switching control apparatus 1 may include the obtaining module 11, the sending module 12, and the notification module 13 in FIG. 5, and further The switching control device 1 may further include: a conversion relationship sending module 14, and a notification stopping switching module 15;

The conversion relationship sending module 14 is configured to send an address translation relationship between the calling terminal or the called terminal on a NAT gateway to the base station where the calling terminal or the called terminal is located, so as to facilitate Describe that the calling terminal and the called terminal perform local exchange;

Specifically, there is a NAT gateway on the interface between the PCRF entity and the IMS, and the NAT gateway is responsible for converting the private IP address and port of the terminal into a public network IP address and port. The conversion relationship sending module 14 may notify the NAT gateway to insert the IP/PORT conversion relationship of the calling terminal when the PCRF entity reports the first global ID information or the second global ID information to the IMS, and notify the NAT gateway to the IMS to the called terminal. The IP/PORT conversion relationship of the called terminal is inserted when the local exchange request is sent, so that the conversion relationship sending module 14 can send the obtained IP/PORT conversion relationship between the calling terminal and the called terminal to the calling terminal or the The base station where the called terminal is located is configured to perform local exchange between the calling terminal and the called terminal. After the local exchange, the IP flow no longer passes through the NAT gateway, so the base station can convert the IP address and port of the terminal through the received IP/PORT conversion relationship between the calling terminal and the called terminal, so as to successfully complete the Local exchange between the calling terminal and the called terminal.

The notification stops the switching module 15 for notifying the office when supplementary service or lawful interception is needed Determining that the calling terminal or the base station where the called terminal is located stops local exchange between the calling terminal and the called terminal;

Specifically, when the supplementary service or the lawful interception occurs, the notification stop switching module 15 may send a stop local exchange instruction to the PCRF entity, so that the PCRF entity notifies the calling terminal or the packet switching gateway where the called terminal is located to forward the stop. The local exchange command is sent to the corresponding service gateway, and the service gateway notifies the MME, and the MME notifies the corresponding base station, so that the calling terminal or the base station where the called terminal is located can stop the calling terminal and the called Call the terminal for local exchange.

FIG. 10 is a schematic structural diagram of a base station 2 according to an embodiment of the present invention. The base station 2 specifically refers to a base station where a called terminal is located, and the base station 2 may include: a receiving module 21 and a first local switching module 22 The second local exchange module 23;

The receiving module 21 is configured to receive first global ID information or exchange judgment result sent by the exchange control device, where the exchange determination result is determined by the exchange control device according to the second global ID information;

Specifically, the receiving module 21 may receive the first global ID information sent by the switching control device or exchange the determination result. The exchange judgment result is determined by the exchange control device according to the second global ID information. The first global ID information includes a global ID of the base station where the calling terminal is located and the serving gateway; the second global ID information includes a global ID of the base station where the calling terminal is located and the serving gateway, and a base station where the called terminal is located. And the global ID of the service gateway.

Before the receiving module 21 receives the first global ID information sent by the switching control device or exchanges the determination result, the switching control device needs to acquire the first global ID information or the second global ID information, and the switching control device acquires the first For the specific process of the global ID information or the second global ID information, refer to the functions implemented by the obtaining module 11 in FIG. 5 above, and no further description is made here. The first local switching module 22 is configured to perform local exchange between the calling terminal and the called terminal according to the first global ID information when receiving the first global ID information;

Specifically, when the receiving module 21 receives the first global ID information, the first local switching module 22 may refer to the calling terminal and the called party according to the first global ID information. The terminal performs local exchange. Determining, according to the first global ID information, that the calling terminal and the called terminal are in the same base station and the same serving gateway, the first local switching module 22 will directly directly contact the calling terminal and the called terminal. Performing local exchange; when it is determined that the base station where the calling terminal is located and the local base station have network communication capability according to the first global ID information, the first local switching module 22 may also pass the local calling terminal. The base station in which the base station exchanges the calling terminal and the called terminal locally.

The second local switching module 23 is configured to perform local exchange between the calling terminal and the called terminal according to the exchange determination result when receiving the exchange determination result;

Specifically, when the receiving module 21 receives the exchange judgment result, the second local switching module 23 may locally exchange the calling terminal and the called terminal according to the exchange judgment result.

Further, referring to FIG. 11 , which is a schematic structural diagram of the first local switching module 22 in FIG. 10 , the first local switching module 22 may include: a first local determining unit 221 , a first switching unit 222 , and a first a second local determining unit 223, a first establishing unit 224;

The first local determining unit 221 is configured to determine, according to the first global ID information, whether the base station and the serving gateway where the calling terminal is located are the same as the local base station and the local serving gateway;

Specifically, when the receiving module 21 receives the first global ID information, the first local determining unit 221 may determine, according to the first global ID information, whether the base station and the serving gateway where the calling terminal is located Both are the same as the local base station and the local service gateway.

The first switching unit 222 is configured to perform local exchange between the calling terminal and the called terminal if the first local determining unit 221 determines that the same is the same;

Specifically, when the first local determining unit 221 determines that the base station and the serving gateway where the calling terminal is located are the same as the local base station and the local serving gateway, the calling terminal and the called terminal are in the same place. The first switching unit 222 may determine, according to the first global ID information, a context of the calling terminal, to locally exchange the calling terminal and the called terminal, and exchange the local exchange. The path is: the calling terminal to the base station, and then to the called terminal.

The second local determining unit 223 is configured to determine, if the first local determining unit 221 is different, whether the base station where the calling terminal is located and the local base station have network communication capability;

Specifically, when the first local determining unit 221 determines that the base station and the serving gateway where the calling terminal is located are not the same as the local base station and the local serving gateway, the second local determining unit 223 may further determine the location. Whether the base station where the calling terminal is located and the local base station have network communication capabilities. The determining process of the second local determining unit 223 may be specifically: the second local determining unit 223 sends a local exchange channel request to the base station where the calling terminal is located, and adds the The first global ID information, so that the base station where the calling terminal is located can determine, according to the first global ID information, whether to perform local exchange with the calling terminal, and if it is determined that local exchange is to be performed, respond to the second local determining unit. 223, the calling terminal and the called terminal may be locally exchanged, so that the second local determining unit 223 may determine that the base station where the calling terminal is located and the base station where the called terminal is located have network communication capability; Otherwise, the second local determining unit 223 may determine that the base station where the calling terminal is located does not have network communication capability with the base station where the called terminal is located.

The first establishing unit 224 is configured to establish a local switching channel with the base station where the calling terminal is located, if the second local determining unit 223 determines that the network communication capability is available, to perform the local switching channel through the local switching channel. Describe that the calling terminal and the called terminal perform local exchange;

Specifically, when the second local determining unit 223 determines that the base station where the calling terminal is located has network communication capability with the local base station, it indicates that the base station where the calling terminal is located may respond to the base station 2 to the calling terminal. Performing a local exchange with the called terminal. At this time, the first establishing unit 224 may establish a local switching channel with the base station where the calling terminal is located, to access the calling terminal and the called by the local switching channel. The calling terminal performs local switching. The switching path of the local switching is: the calling terminal to the base station where the calling terminal is located, and then the local switching channel to the base station where the called terminal is located, and finally Go to the called terminal. When the second local determining unit 223 determines that the base station where the calling terminal is located does not have network communication capability with the local base station, local switching cannot be performed.

When the first establishing unit 224 sends a local switching channel request to the base station where the calling terminal is located, the first establishing unit 224 may further add the obtained address translation relationship between the calling terminal and the called terminal. In the local exchange channel request, the base station where the calling terminal is located and the local base station can smoothly complete the local exchange between the calling terminal and the called terminal according to the address translation relationship.

The second local switching module 23 may include: a second switching unit 231 and a second establishing unit 232;

The second switching unit 231 is configured to: when the received handover judgment result is that the base station and the serving gateway where the calling terminal is located are the same as the base station and the serving gateway where the called terminal is located, The calling terminal and the called terminal perform local exchange;

The second establishing unit 232 is configured to: when the received exchange judgment result is that the base station where the calling terminal is located and the base station where the called terminal is located have network communication capability, The base station where the terminal is located establishes a local switching channel to locally exchange the calling terminal and the called terminal through the local switching channel.

The base station 2 according to the embodiment of the present invention, by receiving the first global ID information or the exchange judgment result sent by the exchange control device, may cause the base station 2 to refer to the calling terminal and the queried terminal according to the first global ID information or the exchange judgment result. The terminal is called to perform local exchange to solve the path redundancy phenomenon of VOIP in the mobile network, thereby reducing network traffic and network investment.

Referring to FIG. 13, FIG. 13 is a schematic structural diagram of another base station 2 according to an embodiment of the present invention. The base station 2 may include the receiving module 21, the first local switching module 22, and the second local device in the corresponding embodiment of FIG. The switching module 23, further, the base station 2 may further include: a conversion relationship receiving module 24, a preset module 25, a first switching module 26, and a second switching module 27;

The conversion relationship receiving module 24 is configured to receive an address translation relationship between the calling terminal or the called terminal sent by the switching control device on a NAT gateway, so as to facilitate the calling terminal Local exchange with the called terminal;

Specifically, there is a NAT gateway on the interface between the PCRF entity and the IMS, and the NAT gateway is responsible for converting the private IP address and port of the terminal into a public network IP address and port. The switching control device may notify the NAT gateway to insert the IP/PORT conversion relationship of the calling terminal when the first global ID information or the second global ID information is reported to the IMS by the PCRF entity, and notify the NAT gateway to send the locality to the called terminal at the IMS. The IP/PORT conversion relationship of the called terminal is inserted in the exchange request to obtain an address translation relationship between the calling terminal or the called terminal on the NAT gateway. At this time, the conversion relationship receiving module 24 may receive the Transmitting, by the switching control device, an address translation relationship between the calling terminal or the called terminal on the NAT gateway, to convert the IP address and the port of the terminal, so that the calling terminal and the called terminal can be successfully completed. Call the local exchange of the terminal.

The preset module 25 is configured to preset an address translation relationship between the calling terminal or the called terminal on the NAT gateway, so as to facilitate local exchange between the calling terminal and the called terminal; The preset module 25 may preset an address translation relationship between the calling terminal or the called terminal on the NAT gateway, so as to perform local exchange between the calling terminal and the called terminal. For example, if the calling terminal and the called terminal are in the base station 2, if the preset module 25 presets the source IP/source port of the data packet sent by the calling terminal (assumed to be IP1/PORT1), the called terminal corresponds to the called terminal. The destination IP/destination port of the transmitted packet (assumed to be IP2/PORT2), and the destination IP/destination port of the packet sent by the calling terminal (assumed to be IP3/PORT3) corresponds to the destination of the packet sent by the called terminal. IP/destination port (assumed to be IP4/PORT4), when the base station 2 and the serving gateway receive the data packet sent by the calling terminal, convert IP1/PORT1 to IP2/PORT2, and convert IP3/PORT3 to IP4/PORT4. Then, it is sent to the called terminal; or, when receiving the data packet sent by the called terminal, the base station 2 and the serving gateway convert IP2/PORT2 into IP1/PORT1, convert IP4/PORT4 into IP3/PORT3, and then send it to the main Call the terminal.

The base station 2 can obtain the address translation relationship of the calling terminal or the called terminal on the NAT gateway by using the conversion relationship receiving module 24 or the preset module 25.

The first switching module 26 is configured to switch, when the base station where the calling terminal is located, to the target base station, to switch the local exchange relationship between the calling terminal and the called terminal to the target base station. And the local base station;

Specifically, when the base station where the calling terminal is located and the base station where the called terminal is located perform local exchange between the calling terminal and the called terminal, when the base station where the calling terminal is located switches to the target base station, the A switching module 26 may switch the local switching relationship between the calling terminal and the called terminal to the target base station and the local base station, that is, when the base station where the calling terminal is located, when switching to the target base station, The global ID of the base station and the serving gateway where the called terminal is located is sent to the target base station, so that the target base station determines whether the target base station and the base station where the called terminal is located have network communication capability according to the global ID of the base station and the serving gateway where the called terminal is located, if For the network communication capability, the target base station establishes a local switching channel with the base station where the called terminal is located to perform local exchange between the calling terminal and the called terminal.

The second switching module 27 is configured to switch, when the base station where the called terminal is located, to the target base station, to switch the local exchange relationship between the calling terminal and the called terminal to the target base station and The base station where the calling terminal is located;

Specifically, when the base station where the called terminal is located is switched to the target base station, the second switching module

The global ID of the base station and the serving gateway where the calling terminal is located is sent to the target base station, so that the target base station determines whether the base station where the target base station and the calling terminal are located have network communication capability according to the global ID of the base station and the serving gateway where the calling terminal is located. If the network communication capability is available, the target base station establishes a local switching channel with the base station where the calling terminal is located to perform local exchange between the calling terminal and the called terminal.

The embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium can store a program, and the program includes a part of the method for IP voice exchange described in the method embodiment of FIG. 1 to FIG. 2 when executed. Or all steps.

The embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium may store a program, where the program is executed, including the part of the method for IP voice exchange described in the method embodiments of FIG. 3 to FIG. 4 described above. Or all steps. Referring to FIG. 14, FIG. 14 is a schematic structural diagram of still another switching control apparatus 1 according to an embodiment of the present invention. The switching control apparatus 1 may include a processor 1001, a communication interface 1002, and a memory 1003 (processing in the switching control apparatus 1) The number of the devices 1001 may be one or more, and one processor 1001 is taken as an example in FIG. 14). In some embodiments of the present invention, the processor 1001, the communication interface 1002, and the memory 1003 may be connected by a communication bus or other means, wherein FIG. 14 is exemplified by a communication bus connection.

The communication interface 1002 is configured to communicate with a base station and a serving gateway;

The memory 1003 is configured to store a program;

The processor 1001 is configured to execute the program to implement

Obtaining the first global ID information or the second global ID information;

And when the second global ID information is obtained, the base station where the calling terminal or the called terminal is located is notified to perform local exchange between the calling terminal and the called terminal according to the second global ID information.

The processor 1001 is specifically configured to:

The local exchange condition is that the base station where the calling terminal is located has network communication capability with the base station where the called terminal is located. The processor 1001 is configured to: when the first global ID information is sent, when the first global ID information is sent to the base station and the serving gateway where the called terminal is located, specifically, the processor 1001 is specifically configured to:

The processor 1001, when performing the acquiring the second global ID information, notifying the calling terminal or the base station where the called terminal is located to the calling terminal according to the second global ID information. When performing local exchange with the called terminal, it is specifically used to:

The processor 1001 is further configured to:

Transmitting, by the calling terminal or the called terminal, an address translation relationship on the NAT gateway to the base station where the calling terminal or the called terminal is located, so as to facilitate the calling terminal and the called terminal Perform local exchange.

The processor 1001 is further configured to:

It can be seen that, by sending the first global ID information to the base station and the serving gateway where the called terminal is located, the base station and the serving gateway where the called terminal is located can make the calling terminal and the called terminal according to the first global ID information. Calling the terminal to perform local exchange, or, according to the second global ID information, notifying the calling terminal or the base station where the called terminal is located to locally exchange the calling terminal and the called terminal, Solve the path redundancy phenomenon of VOIP in mobile networks, thus reducing network traffic and network investment. Referring to FIG. 15, FIG. 15 is a schematic structural diagram of another base station 2 according to an embodiment of the present invention. The base station 2 specifically refers to a base station where the called terminal is located. The base station 2 may include a processor 2001, a communication interface 2002, and a memory 2003 (the number of processors 2001 in the base station 2 may be one or more, and one processor 2001 in FIG. 15 is taken as an example). In some embodiments of the present invention, the processor 2001, the communication interface 2002, and the memory 2003 may be connected by a communication bus or other means, wherein FIG. 15 is exemplified by a communication bus connection.

The communication interface 2002 is configured to communicate with an exchange control device;

The memory 2003 is used to store a program;

The processor 2001 is configured to execute the program to implement

The first global ID information includes a global ID of the base station where the calling terminal is located and the serving gateway;

The second global ID information includes a global ID of the base station where the calling terminal is located and the serving gateway, and a global ID of the base station where the called terminal is located and the serving gateway.

The processor 2001 performs the local exchange of the calling terminal and the called terminal according to the first global ID information when performing the first global ID information, specifically In:

If it is determined to be the same, the calling terminal and the called terminal are locally exchanged; if it is determined to be different, further determining whether the base station where the calling terminal is located and the local base station have network communication capability ; If it is determined that the network communication capability is available, a local switching channel is established with the base station where the calling terminal is located, so that the calling terminal and the called terminal are locally exchanged through the local switching channel.

When the processor 2001 performs the local exchange of the calling terminal and the called terminal according to the exchange judgment result, the processor 2001 is specifically configured to:

The processor 2001 is further configured to:

Receiving, by the switching control device, an address translation relationship between the calling terminal or the called terminal on a NAT gateway, so as to perform local exchange between the calling terminal and the called terminal; or

The processor 2001 is further configured to:

The base station 2 according to the embodiment of the present invention, by receiving the first global ID information or the exchange judgment result sent by the exchange control device, may cause the base station 2 to refer to the calling terminal and the queried terminal according to the first global ID information or the exchange judgment result. Call the terminal to perform local exchange to solve the existence of VOIP in the mobile network. Path redundancy reduces network traffic and network investment.

A person skilled in the art can understand that all or part of the process of implementing the above embodiment method can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium, the program When executed, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and the equivalent changes made by the claims of the present invention are still within the scope of the present invention.

Claims

Rights request

1. An IP voice switching method, characterized by including:

Obtain the first global ID information or the second global ID information;

When the first global ID information is obtained, the first global ID information is sent to the base station and the serving gateway where the called terminal is located, so that the base station and the serving gateway where the called terminal is located are configured according to the first global ID. When the information determines that the relationship between the base station and the serving gateway where the calling terminal is located satisfies local exchange conditions, local exchange is performed between the calling terminal and the called terminal;

When the second global ID information is obtained, the base station where the calling terminal or the called terminal is located is notified to perform local switching on the calling terminal and the called terminal according to the second global ID information.

2. The method according to claim 1, characterized in that said obtaining the first global ID information or the second global ID information includes:

The Notification Policy and Charging Rules Function Unit (PCRF) entity reports the global ID of the base station where the calling terminal is located and the serving gateway where it is located, and uses the received global ID of the base station and serving gateway where the calling terminal is located as the first global ID. information; or,

Notify the PCRF entity to report the global ID of the base station and serving gateway where the calling terminal is located, and the global ID of the base station and serving gateway where the called terminal is located, and receive the global ID of the base station and serving gateway where the calling terminal is located. , and the global ID of the base station and serving gateway where the called terminal is located as the second global ID information.

3. The method according to claim 1 or 2, characterized in that,

The local exchange condition is that the base station and serving gateway where the calling terminal is located are the same as the base station and serving gateway where the called terminal is located; or,

The local exchange condition is that the base station where the calling terminal is located and the base station where the called terminal is located have network communication capabilities.

4. The method according to any one of claims 1 to 3, wherein said sending the first global ID information to the base station and serving gateway where the called terminal is located includes:

Create a local switching request, and add the first global ID information to the local switching request; Send the local switching request to the base station and serving gateway where the called terminal is located.

5. The method according to any one of claims 1 to 4, characterized in that: notifying the calling terminal or the base station where the called terminal is located according to the second global ID information that the calling terminal The terminal and the called terminal perform local switching, including:

Determine whether the base station and serving gateway where the calling terminal is located are the same as the base station and serving gateway where the called terminal is located based on the second global ID information;

If it is determined that they are the same, notify the same base station where the calling terminal and the called terminal are located to perform local switching on the calling terminal and the called terminal;

If it is determined that they are different, it is further determined whether the base station where the calling terminal is located and the base station where the called terminal is located have network communication capabilities;

If it is determined that it has network communication capabilities, the base station where the calling terminal or the called terminal is located is notified to establish a local switching channel with the opposite end base station, so that the calling terminal or the base station where the called terminal is located passes. The local switching channel performs local switching on the calling terminal and the called terminal.

6. The method according to any one of claims 1 to 5, further comprising: sending the address translation related to the calling terminal or the called terminal on the network address translation (NAT) gateway. The base station where the calling terminal or the called terminal is located is used to facilitate local switching of the calling terminal and the called terminal.

7. The method according to any one of claims 1 to 6, further comprising: when supplementary services or legal interception are required, notifying the base station where the calling terminal or the called terminal is located to stop monitoring all The calling terminal and the called terminal perform local switching.

8. An IP voice switching method, characterized by including:

Receive the first global ID information or the switching judgment result sent by the switching control device, the switching judgment result is judged by the switching control device based on the second global ID information;

When receiving the first global ID information, performing local switching on the calling terminal and the called terminal according to the first global ID information;

When the switching judgment result is received, local switching is performed on the calling terminal and the called terminal according to the switching judgment result.

9. The method of claim 8, characterized in that,

The first global ID information includes the global ID of the base station and serving gateway where the calling terminal is located; the second global ID information includes the global ID of the base station and serving gateway where the calling terminal is located, and the base station and serving gateway where the called terminal is located. The global ID of the service gateway.

10. The method of claim 9, wherein performing local switching on the calling terminal and the called terminal according to the first global ID information includes:

Determine whether the base station and the serving gateway where the calling terminal is located are the same as the local base station and the local serving gateway according to the first global ID information;

If it is determined that they are the same, local switching is performed on the calling terminal and the called terminal; if it is determined that they are different, it is further determined whether the base station where the calling terminal is located and the local base station have network communication capabilities. ;

If it is determined that the network communication capability is available, a local switching channel is established with the base station where the calling terminal is located, so as to perform local switching on the calling terminal and the called terminal through the local switching channel.

11. The method according to claim 9 or 10, wherein performing local switching on the calling terminal and the called terminal according to the switching judgment result includes:

When the received exchange judgment result is that both the base station and the serving gateway where the calling terminal is located When the base station and serving gateway where the called terminal is located are the same, perform local switching on the calling terminal and the called terminal;

When the received switching judgment result is that the base station where the calling terminal is located and the base station where the called terminal is located have network communication capabilities, a local switching channel is established with the base station where the calling terminal is located, so as to Local switching is performed on the calling terminal and the called terminal through the local switching channel.

12. The method according to any one of claims 8 to 11, further comprising: receiving the information of the calling terminal or the called terminal sent by the switching control device at the Network Address Translation (NAT) gateway. The address translation relationship on the network is to facilitate local switching between the calling terminal and the called terminal; or,

The address translation relationship of the calling terminal or the called terminal on the NAT gateway is preset to facilitate local switching of the calling terminal and the called terminal.

13. The method according to any one of claims 10 to 12, further comprising: when the base station where the calling terminal is located is switched to a target base station, switching the calling terminal and the called terminal Switch the local exchange relationship between the target base station and the local base station;

When the base station where the called terminal is located is switched to the target base station, the local exchange relationship between the calling terminal and the called terminal is switched to the target base station and the base station where the calling terminal is located.

14. A switching control device, characterized in that it includes:

Acquisition module, used to obtain the first global ID information or the second global ID information;

A sending module, configured to send the first global ID information to the base station and service gateway where the called terminal is located when the obtaining module obtains the first global ID information, so that the base station and service gateway where the called terminal is located When the gateway determines, based on the first global ID information, that the relationship between the base station and the serving gateway where the calling terminal is located satisfies local switching conditions, perform local switching on the calling terminal and the called terminal; Notification module, configured to notify the calling terminal or the base station where the called terminal is located of the calling terminal and the base station according to the second global ID information when the obtaining module obtains the second global ID information. The called terminal performs local switching.

15. The device according to claim 14, wherein the acquisition module includes: a first notification reporting unit, configured to notify the Policy and Charging Rule Function Unit (PCRF) entity to report the base station and service where the calling terminal is located The global ID of the gateway, and the received global ID of the base station and serving gateway where the calling terminal is located as the first global ID information;

The second notification reporting unit is used to notify the PCRF entity to report the global ID of the base station and serving gateway where the calling terminal is located, and the global ID of the base station and serving gateway where the called terminal is located, and report the received location of the calling terminal. The global ID of the base station and the serving gateway where it is located, and the global ID of the base station and the serving gateway where the called terminal is located are used as the second global ID information.

16. The device according to claim 14 or 15, characterized in that,

17. The device according to any one of claims 14 to 16, characterized in that the sending module includes:

Create an adding unit, used to create a local switching request, and add the first global ID information to the local switching request;

A request sending unit is configured to send the local switching request to the base station and serving gateway where the called terminal is located.

18. The device according to any one of claims 14 to 17, characterized in that, the notification module include:

A first judgment unit configured to judge whether the base station and serving gateway where the calling terminal is located are the same as the base station and serving gateway where the called terminal is located based on the second global ID information;

Notifying switching unit, configured to notify the same base station where the calling terminal and the called terminal are located to perform local switching on the calling terminal and the called terminal if the first judging unit determines that they are the same. ;

The second judgment unit is configured to further judge whether the base station where the calling terminal is located and the base station where the called terminal is located have network communication capabilities if the first judgment unit determines that they are different; notify the establishment unit, If the second judgment unit determines that it has network communication capability, notify the base station where the calling terminal or the called terminal is located to establish a local switching channel with the opposite base station, so that the calling terminal or the base station where the called terminal is located establishes a local switching channel. The base station where the called terminal is located performs local switching on the calling terminal and the called terminal through the local switching channel.

19. The device according to any one of claims 14 to 18, further comprising: a conversion relationship sending module, configured to send the information of the calling terminal or the called terminal to a Network Address Translation (NAT) gateway. The address translation on the base station is related to the base station where the calling terminal or the called terminal is located, so as to facilitate local switching of the calling terminal and the called terminal.

20. The device according to any one of claims 14 to 19, further comprising: a notification stop switching module, configured to notify the calling terminal or the called party when supplementary services or legal interception are required. The base station where the terminal is located stops performing local switching on the calling terminal and the called terminal.

21. A base station, characterized by including:

A receiving module, configured to receive the first global ID information or the exchange judgment result sent by the exchange control device, the exchange judgment result being judged by the exchange control device based on the second global ID information; A first local switching module, configured to perform local switching on the calling terminal and the called terminal according to the first global ID information when receiving the first global ID information;

The second local switching module is configured to, when receiving the switching judgment result, perform local switching on the calling terminal and the called terminal according to the switching judgment result.

22. The base station according to claim 21, characterized in that,

23. The base station according to claim 22, wherein the first local switching module includes:

A first local judgment unit, configured to judge whether the base station and the serving gateway where the calling terminal is located are the same as the local base station and the local serving gateway based on the first global ID information;

The first switching unit is configured to perform local switching on the calling terminal and the called terminal if the first local judgment unit determines that they are the same;

The second local judgment unit is configured to further judge whether the base station where the calling terminal is located and the local base station have network communication capabilities if the first local judgment unit judges that they are different; the first establishment unit is used to If the second local judgment unit determines that it has network communication capabilities, it establishes a local switching channel with the base station where the calling terminal is located, so as to communicate with the calling terminal and the called terminal through the local switching channel. Perform local exchange.

24. The base station according to claim 22 or 23, characterized in that the second local switching module includes:

The second switching unit is configured to send a signal to the calling terminal when the received switching judgment result is that the base station and serving gateway where the calling terminal is located are the same as the base station and serving gateway where the called terminal is located. Perform local switching with the called terminal; The second establishment unit is configured to, when the received exchange judgment result indicates that there is network communication capability between the base station where the calling terminal is located and the base station where the called terminal is located, and the base station where the calling terminal is located. The base station establishes a local switching channel to perform local switching on the calling terminal and the called terminal through the local switching channel.

25. The base station according to any one of claims 21 to 24, further comprising: a conversion relationship receiving module, configured to receive the information of the calling terminal or the called terminal sent by the switching control device. The address translation relationship on the Network Address Translation (NAT) gateway to facilitate local switching of the calling terminal and the called terminal;

A preset module is used to preset the address translation relationship of the calling terminal or the called terminal on the NAT gateway, so as to facilitate local switching of the calling terminal and the called terminal.

26. The base station according to any one of claims 23 to 25, further comprising: a first switching module, configured to switch the calling terminal when the base station where the calling terminal is located switches to the target base station. The local exchange relationship between the terminal and the called terminal is switched to the target base station and the local base station;

The second switching module is configured to switch the local exchange relationship between the calling terminal and the called terminal to the target base station and the calling terminal when the base station where the called terminal is located is switched to the target base station. Call the base station where the terminal is located.

27. A computer storage medium characterized by:

The computer storage medium may store a program, which when executed includes the steps described in any one of claims 1 to 7.

28. A computer storage medium characterized by:

The computer storage medium may store a program, which when executed includes the steps described in any one of claims 8 to 13.

29. A switching control device, characterized in that it includes: a processor, a communication interface and a memory, wherein,

The communication interface is used to communicate with the base station and the service gateway;

The memory is used to store programs;

The processor is used to execute the program to implement

Obtain the first global ID information or the second global ID information;

30. The device according to claim 29, wherein the processor is specifically configured to: notify the Policy and Charging Rules Function Unit (PCRF) entity to report the global ID of the base station and serving gateway where the calling terminal is located, and Use the received global ID of the base station and serving gateway where the calling terminal is located as the first global ID information; or,

31. The device according to claim 29 or 30, characterized in that,

32. The device according to any one of claims 29 to 31, characterized in that the processor is specifically used to:

33. The device according to any one of claims 29 to 32, characterized in that the processor is specifically used to:

34. The device according to any one of claims 29 to 33, characterized in that the processor is also used for:

Sending the address translation of the calling terminal or the called terminal on the network address translation (NAT) gateway is related to the base station where the calling terminal or the called terminal is located, so as to facilitate the communication between the calling terminal and the base station where the called terminal is located. The called terminal performs local switching.

35. The device according to any one of claims 29 to 34, characterized in that the processor is also used for:

When supplementary services or legal interception are required, the base station where the calling terminal or the called terminal is located is notified to stop performing local switching on the calling terminal and the called terminal.

36. A base station, characterized in that it includes: a processor, a communication interface and a memory, wherein the communication interface is used to communicate with a switching control device;

The memory is used to store programs;

The processor is used to execute the program to implement

37. The base station according to claim 36, characterized in that,

38. The base station according to claim 37, wherein the processor is specifically configured to: determine whether the base station and the serving gateway where the calling terminal is located are both consistent with the local base station and the local base station according to the first global ID information. The service gateway is the same;

39. The base station according to claim 37 or 38, characterized in that the processor is specifically configured to: When the received exchange judgment result is that the base station and serving gateway where the calling terminal is located are the same as the base station and serving gateway where the called terminal is located, the calling terminal and the called terminal are local exchange;

40. The base station according to any one of claims 36 to 39, characterized in that the processor is further used to:

Receive the address translation relationship of the calling terminal or the called terminal on the network address translation (NAT) gateway sent by the switching control device, so as to facilitate local switching of the calling terminal and the called terminal. ; or,

41. The base station according to any one of claims 38 to 40, characterized in that the processor is further used to:

When the base station where the calling terminal is located is switched to the target base station, the local exchange relationship between the calling terminal and the called terminal is switched to the target base station and the local base station;