CN105264958B

CN105264958B - A kind of method and device of bearer circuit voice service

Info

Publication number: CN105264958B
Application number: CN201480000252.2A
Authority: CN
Inventors: 陈燕燕; 邢平平; 谭斌
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-01-10
Filing date: 2014-01-10
Publication date: 2019-08-13
Anticipated expiration: 2034-01-10
Also published as: CN105264958A; WO2015103780A1

Abstract

The present invention discloses a kind of method and device of bearer circuit voice service, is related to technical field of communication network, at high cost when for solving the problems, such as that LTE supports voice service, to establish voice service time delay longer.The embodiment of the present invention receives the paging message that second network equipment is sent by first interface by first network equipment, and paging message carries the ID of UE；First network equipment generates first message, and first message is sent to UE by second interface, first message is used to indicate UE access the first standard network according to the corresponding UE state of ID of paging message and UE；First network equipment receives UE and establishes voice service request by what second interface was sent, and is radio resource of the UE distribution for the first standard of carry voice traffic according to voice service request is established.Scheme provided in an embodiment of the present invention is suitable for using when bearer circuit voice service.

Description

Method and device for bearing circuit voice service

Technical Field

The present invention relates to the field of communications network technologies, and in particular, to a method and an apparatus for carrying a circuit voice service.

Background

Long Term Evolution (LTE) is an important technology for next-generation mobile communication systems, and is also an Evolution technology of 3G, and has the advantages of high bandwidth, high mobility, and low delay. In the prior art, the LTE network does not support Circuit switched Domain (CS Domain) service, i.e. the LTE network does not support voice service. Global System for Mobile communications (GSM) networks and Universal Mobile Telecommunications System (UMTS) networks may support voice services. When an LTE network is used for voice services, two schemes are generally used: in the first scheme, an IP Multimedia Subsystem (IMS) is deployed in a core network of an LTE network, and then a Protocol (Internet Protocol, IP) interconnected between networks is used to transmit Voice, that is, Voice over Internet Protocol (VoIP) realizes Voice service; in the second scheme, when the user resides in the LTE network, the voice service needs to be switched back to the GSM or UMTS network from the LTE network to establish the voice service to complete the voice call.

However, by deploying IMS in the core network, the LTE supporting voice services needs to be deployed by means of IMS, and purchasing and deploying IMS equipment results in higher cost; in addition, when the LTE network is switched back to the GSM or UMTS network, the voice service of the user in LTE needs to be interrupted, which results in a long time delay for establishing the voice service.

Disclosure of Invention

The embodiment of the invention provides a method and a device for bearing circuit voice service, which are used for solving the problems of high cost and long time delay for establishing the voice service when LTE supports the voice service.

In a first aspect, an embodiment of the present invention provides a method for carrying a circuit voice service, including:

a first network device receives a paging message sent by a second network device through a first interface, wherein the first network device is a network device of a first standard, the second network device is a network device of a second standard or a network device compatible with the first standard and the second standard, and the paging message carries an identification ID of User Equipment (UE);

the first network equipment generates a first message according to the paging message and the UE state corresponding to the ID of the UE, and sends the first message to the UE through a second interface, wherein the first message is used for indicating the UE to access a first standard network;

and the first network equipment receives a voice service establishing request sent by the UE through the second interface, and allocates wireless resources of a first standard for bearing voice services to the UE according to the voice service establishing request.

In a first possible embodiment, in combination with the first aspect,

the first standard is a Long Term Evolution (LTE) network or a Wireless Local Area Network (WLAN);

the second standard is a Universal Mobile Telecommunications System (UMTS) network or a global system for mobile communications (GSM) network;

the first network equipment is a base station eNB of the LTE or a wireless access point AP of the WLAN;

the second network device is a radio network controller RNC of the UMTS, or a base station controller BSC of the GSM, or a unified radio controller SRC which is responsible for coordinating a plurality of system resources;

the first interface is an interface connected between the first network device and the second network device; the second interface is a first standard air interface between the first network device and the UE.

In a second possible embodiment, with reference to the first aspect or the first possible embodiment of the first aspect, before the first network device generates the first message according to the paging message and a UE state corresponding to the ID of the UE, the method further includes:

the first network equipment acquires the UE state, wherein the UE state comprises any one of the following modes: the UE is in an idle state, and the UE is in a state of connection with the first network device.

In a third possible embodiment, with reference to the first aspect or any one of the foregoing possible embodiments of the first aspect, the first message includes indication information, where the indication information is used to indicate that the UE accesses the network of the first system;

when the UE is in an idle state, the first message further comprises a paging message; or,

the first message further includes a radio resource control protocol, RRC, reconfiguration message when the UE is in a connected state with the first network device.

In a fourth possible embodiment, with reference to the third possible embodiment of the first aspect, when the UE is in an idle state, after the sending the first message to the UE through the second interface, the method further includes:

the first network device establishes an RRC connection with the UE.

In a fifth possible embodiment, with reference to the third possible embodiment or the fourth possible embodiment of the first aspect, after the sending the first message to the UE through the second interface, the method further includes:

the first network device sends a decoupling command to the UE through the second interface, wherein the decoupling command is used for instructing the UE to encapsulate NAS data communicated between a non-access stratum (NAS) of the UE and a NAS of core network equipment of a second standard in a second message;

the first network device receives, through the second interface, the second message carrying a decoupling indication sent by the UE, where the decoupling indication is used to instruct the first network device to forward the NAS data to the second network device;

and the first network device sends the NAS data encapsulated in the second message to the second network device through the first interface according to the decoupling indication.

In a sixth possible embodiment, with reference to the fifth possible embodiment of the first aspect, the second message is an uplink information transmission message.

In a second aspect, an embodiment of the present invention provides an apparatus for carrying a circuit voice service, where the apparatus is a network device of a first standard, and the apparatus includes:

a receiving module, configured to receive, through a first interface, a paging message sent by a second network device, and provide the paging message to a generating module, where the second network device is a network device of a second standard or a network device compatible with the first standard and the second standard, and the paging message carries an identifier ID of a user equipment UE;

the generating module is configured to generate a first message according to the paging message provided by the receiving module and a UE state corresponding to the ID of the UE, and provide the first message to a sending module, where the first message is used to indicate that the UE accesses a first-standard network;

the sending module is configured to send the first message provided by the generating module to the UE through a second interface;

the receiving module is further configured to receive a request for establishing a voice service sent by the UE through the second interface, and provide the request for establishing the voice service to the processing module,

the processing module is configured to allocate, to the UE, a radio resource of a first standard for carrying a voice service according to the voice service establishment request received by the receiving module.

In a first possible embodiment, in combination with the second aspect,

the device is a base station eNB of the LTE or a wireless access point AP of the WLAN;

the first interface is an interface connected between the apparatus and the second network device; the second interface is a first standard air interface between the apparatus and the UE.

In a second possible embodiment, with reference to the second aspect or the first possible embodiment of the second aspect, the apparatus further includes:

an obtaining module, configured to obtain the UE status, where the UE status includes any one of the following manners: the UE is in an idle state, and the UE is in a connected state with the apparatus.

In a third possible embodiment, in combination with the second aspect or any one of the above possible embodiments of the second aspect,

the first message comprises indication information, and the indication information is used for indicating the UE to access the first standard network;

the first message further includes a radio resource control protocol, RRC, reconfiguration message when the UE is in a connected state with the apparatus.

In a fourth possible embodiment, with reference to the third possible embodiment of the second aspect, the apparatus further includes:

an establishing module, configured to establish an RRC connection with the UE.

In a fifth possible embodiment, in combination with the third possible or fourth possible embodiment of the second aspect,

the sending module is further configured to send a decoupling command to the UE through the second interface, where the decoupling command is used to instruct the UE to encapsulate NAS data of communication between a non-access stratum NAS of the UE and a NAS of a core network device of a second standard in a second message;

the receiving module is further configured to receive, through the second interface, the second message that is sent by the UE and carries a decoupling indication, and provide the second message to the sending module, where the decoupling indication is used to indicate the sending module to forward the NAS data to the second network device;

the sending module is further configured to send the NAS data encapsulated in the second message to the second network device through the first interface according to the decoupling indication.

In a sixth possible embodiment, with reference to the fifth possible embodiment of the second aspect, the second message is an uplink information transmission message.

In a third aspect, an embodiment of the present invention provides another apparatus for carrying a circuit voice service, where the apparatus is a network device of a first standard, and the apparatus includes:

a memory for storing information including program instructions;

the transceiver is used for receiving a paging message sent by second network equipment through a first interface and providing the paging message to the processor, wherein the second network equipment is network equipment of a second standard or network equipment compatible with the first standard and the second standard, and the paging message carries an identification ID of User Equipment (UE);

the processor is respectively connected with the memory and the transceiver; specifically, the UE control module is configured to generate a first message according to the paging message provided by the transceiver and a UE state corresponding to the ID of the UE, and provide the first message to the transceiver, where the first message is used to indicate that the UE accesses a first-standard network;

the transceiver is further configured to send the first message provided by the processor to the UE through a second interface; receiving a voice service establishing request sent by the UE through the second interface, and providing the voice service establishing request to the processor;

the processor is further configured to allocate, to the UE, a radio resource of a first standard for carrying a voice service according to the request for establishing a voice service provided by the transceiver;

the transceiver is further configured to send, to the UE, the radio resource of the first standard for carrying the voice service, which is allocated to the UE by the processor.

In a first possible embodiment, in combination with the third aspect,

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

the processor is further configured to acquire the UE status, where the UE status includes any one of the following manners: the UE is in an idle state, and the UE is in a connected state with the apparatus.

In a third possible embodiment, in combination with the third aspect or any one of the above possible embodiments of the third aspect,

In a fourth possible embodiment, in combination with the third possible embodiment of the third aspect,

the processor is further configured to establish an RRC connection with the UE.

In a fifth possible embodiment, in combination with the third possible or the fourth possible embodiment of the third aspect,

the transceiver is further configured to send a decoupling command to the UE through the second interface, where the decoupling command is used to instruct the UE to encapsulate NAS data for communication between a non-access stratum NAS of the UE and a NAS of a core network device of a second standard in a second message; receiving, by the second interface, the second message carrying a decoupling indication sent by the UE, where the decoupling indication is used to instruct the transceiver to forward the NAS data to the second network device; and sending the NAS data encapsulated in the second message to the second network device through the first interface according to the decoupling indication.

In a sixth possible embodiment, with reference to the fifth possible embodiment of the third aspect, the second message is an uplink information transmission message.

The method and the device for bearing the circuit voice service provided by the embodiment of the invention receive the paging message sent by the second network equipment through the first interface by the first network equipment, wherein the first network equipment is network equipment of a first standard, the second network equipment is network equipment of a second standard or network equipment compatible with the first standard and the second standard, and the paging message carries the ID of the UE; the first network equipment generates a first message according to the paging message and the UE state corresponding to the ID of the UE, and sends the first message to the UE through the second interface, wherein the first message is used for indicating the UE to access the first system network; and the first network equipment receives a voice service establishing request sent by the UE through the second interface, and allocates wireless resources of a first standard for bearing the voice service for the UE according to the voice service establishing request. Compared with the prior art, the IMS is deployed in the core network, so that the LTE supporting voice service needs to be deployed by depending on the IMS, and the problem of higher cost caused by purchasing and deploying IMS equipment occurs; or, when the LTE network is switched back to the GSM or UMTS network, the voice service of the user in LTE needs to be interrupted, and the problem of long time delay for establishing the voice service occurs.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a system for carrying circuit voice services according to an embodiment of the present invention;

fig. 2 is a flowchart of a method for carrying a circuit voice service according to an embodiment of the present invention;

fig. 3 is a flowchart of another method for carrying circuit voice services according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an apparatus for carrying circuit voice services according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of another apparatus for carrying circuit voice services according to an embodiment of the present invention;

fig. 6 is a hardware structure diagram of a first network device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, a method for carrying a circuit domain voice service according to an embodiment of the present invention is applicable to a system for carrying a circuit domain voice service, where the system includes a first network device 101, a second network device 102, and a User Equipment (UE) 103.

A first network device 101, configured to receive, through a first interface, a paging message sent by a second network device 102, where the first network device 101 is a network device of a first standard, the second network device 102 is a network device of a second standard or a network device compatible with the first standard and the second standard, and the paging message carries an identifier (identity, ID) of the UE 103; generating a first message according to the paging message and the UE state corresponding to the ID of the UE103, and sending the first message to the UE103 through a second interface, wherein the first message is used for indicating the UE103 to access the first-system network; and receiving a voice service establishing request sent by the UE103 through the second interface, and allocating wireless resources of the first standard for bearing the voice service to the UE103 according to the voice service establishing request.

The first network device 101 may be a network device of a first standard, and the second network device 102 may be a network device of a second standard or a network device compatible with the first standard and the second standard. The first standard may be a long term evolution LTE network or a Wireless Local Area Network (WLAN); the second standard may be a universal mobile telecommunications system UMTS network or a global system for mobile communications GSM network.

The ID of the UE may include, but is not limited to, an International Mobile Subscriber Identity (IMSI) of the UE.

For example, the first network device is an evolved Node B (eNB) of LTE or an Access Point (AP) of WLAN; the second network device is a Radio Network Controller (RNC) of the UMTS, or a Base Station Controller (BSC) of the GSM, or a Single Radio Controller (SRC) responsible for coordinating multiple system resources.

The first interface is an interface connected between the first network device 101 and the second network device 102; the second interface is a first standard air interface between the first network device 101 and the UE 103.

The second network device 102 is configured to send a paging message to the first network device 101.

The UE103 is configured to receive a first message sent by the first network device 101 through a second interface; and sending a request for establishing the voice service to the first network device 101 through the second interface, and then receiving the radio resource of the first standard which is allocated by the first network device and used for bearing the voice service.

Further, the first network device 101 is further configured to obtain a UE status, where the UE status includes any one of the following manners: the UE103 is in an idle state and the UE103 is in a connected state with the first network device.

The first message comprises indication information, and the indication information is used for indicating the UE to access the first system network; when the UE is in an idle state, the first message further comprises a paging message; alternatively, when the UE is in a connected state with the first network device, the first message further includes a radio resource control protocol, RRC, reconfiguration message.

When the UE is in the idle state, after the first network device 101 sends the first message to the UE103 through the second interface, the first network device 101 is further configured to establish an RRC connection with the UE 103.

Further, after the first network device 101 sends the first message to the UE103 through the second interface, the first network device 101 is further configured to send a decoupling command to the UE103 through the second interface, where the decoupling command is used to instruct the UE103 to encapsulate, in the second message, NAS data for communication between a non-Access storage (NAS) of the UE103 and an NAS of a core network device of the second system; receiving, by a second interface, a second message carrying a decoupling indication sent by the UE103, where the decoupling indication is used to instruct the first network device to forward NAS data to the second network device 102; and sending the NAS data encapsulated in the second message to the second network device 102 through the first interface according to the decoupling indication.

And the second message is an uplink information transmission message.

Correspondingly, the second network device 102 is further configured to receive NAS data sent by the first network device 101 through the second interface;

the UE103 is further configured to receive, through the second interface, a decoupling command sent by the first network device 101; and sending a second message carrying the decoupling indication to the first network device 101 through the second interface.

The invention can enable the first network equipment and the UE to bear the voice service through the wireless resource of the first standard, thereby achieving the purposes of reducing the cost of the LTE for supporting the voice service and reducing the time delay for establishing the voice service.

As shown in fig. 2, an embodiment of the present invention provides a method for carrying a circuit voice service, which specifically includes the following steps:

201, a first network device receives a paging message sent by a second network device, where the first network device is a network device of a first standard, the second network device is a network device of a second standard or a network device compatible with the first standard and the second standard, and the paging message carries an ID of a UE.

The first standard is an LTE network or a WLAN; the second standard is a UMTS network or a GSM network.

The first network equipment is an eNB of LTE or an AP of a WLAN; the second network device is an RNC of UMTS, or a BSC of GSM, or a unified radio controller SRC responsible for coordinating multiple system resources.

The first interface is an interface connected between the first network equipment and the second network equipment; the second interface is a first standard air interface between the first network equipment and the UE.

202, the first network device generates a first message according to the paging message and the UE state corresponding to the ID of the UE, and sends the first message to the UE through the second interface, where the first message is used to indicate that the UE accesses the first-standard network.

The UE status may be any one of the following: the UE is in an idle state and the UE is in a connected state with the first network device.

The first message comprises indication information, and the indication information is used for indicating the UE to access the first-system network. When the UE is in an idle state, the first message further comprises a paging message; or, when the UE is in a state of being connected to the first network device, the first message further includes a Radio Resource Control (RRC) reconfiguration message. I.e. when the UE is in idle state, the first network device generates a first message comprising a paging message and indication information. When the UE is in a connected state with the first network equipment, the first network equipment generates a first message comprising the RRC reconfiguration message and the indication information.

203, the first network device receives a request for establishing a voice service sent by the UE through the second interface, and allocates a radio resource of the first system for carrying the voice service to the UE according to the request for establishing the voice service.

In the method for carrying a circuit voice service provided by the embodiment of the present invention, a first network device receives, through a first interface, a paging message sent by a second network device, where the first network device is a network device of a first standard, the second network device is a network device of a second standard or a network device compatible with the first standard and the second standard, and the paging message carries an ID of a user equipment UE; the first network equipment generates a first message according to the paging message and the UE state corresponding to the ID of the UE, and sends the first message to the UE through the second interface, wherein the first message is used for indicating the UE to access the first system network; and the first network equipment receives a voice service establishing request sent by the UE through the second interface, and allocates wireless resources of a first standard for bearing the voice service for the UE according to the voice service establishing request. Compared with the prior art, the IMS is deployed in the core network, so that the LTE supporting voice service needs to be deployed by depending on the IMS, and the problem of higher cost caused by purchasing and deploying IMS equipment occurs; or, when the LTE network is switched back to the GSM or UMTS network, the voice service of the user in LTE needs to be interrupted, and the problem of long time delay for establishing the voice service occurs.

In an implementation manner of the present invention, a method for carrying a circuit voice service is further provided, as shown in fig. 3, specifically including:

301, the Mobile Switching Center (MSC) sends a paging message to the second network device.

The MSC deduces the Network capability of a Radio Access Network (RAN) through Location Area Identity (LA ID) information; and the MSC receives the RAN node capability reported by a Non Access Storage (NAS) of the UE. Wherein the radio access network comprises a first network device (base station) and a second network device. The MSC initiates a paging message for the voice service when the RAN network capabilities and RAN node capabilities meet a criterion. Wherein, the paging message carries the ID of the UE.

In addition, the related description of the second network device may refer to the embodiment of fig. 2.

302, the second network device sends the received paging message to the first network device over the Iu interface.

It is understood that the Iu interface in this step is the first interface.

The description of the first network device may refer to the embodiment of fig. 2.

303, after receiving the paging message, the first network device generates a first message according to the paging message and the UE state corresponding to the UE ID, and then sends the first message to the UE through the second interface.

The first message is used for indicating the UE to access the first system network.

After the first message generated by the first network device is sent to the UE while the UE is in the idle state, step 304 is continued. After the first message generated by the first network device is sent to the UE while the UE is in a connected state with the first network device, step 305 is executed continuously.

304, the first network device establishes an RRC connection with the UE when the UE is in an idle state.

305, the UE sends a request for establishing a voice service to the first network device over an LTE air interface.

And 306, the first network device allocates the radio resource of the first standard for carrying the voice service to the UE according to the request for establishing the voice service, and sends the allocated radio resource of the first standard for carrying the voice service to the UE.

307, the first network device sends a decoupling command to the UE.

The decoupling command is used for instructing the UE to encapsulate NAS data of communication between the NAS of the UE and the NAS of the core network device of the second standard in the second message.

308, the UE sends a second message carrying the decoupling indication to the first network device over an LTE air interface.

The decoupling indication is to instruct the first network device to forward the NAS data to the second network device.

It can be understood that the LTE air interface in this step is the second interface.

And 309, after receiving the second message, the first network device sends the NAS data encapsulated in the second message to the second network device through the Iu interface according to the decoupling indication in the second message.

The related description of the second network device may refer to the embodiment of fig. 2.

The second network device sends 310 the received NAS data to the MSC.

311, the MSC sends an assignment signaling for establishing a Radio Access Bearer (RAB) to the second network device.

The second network device sends a first request to establish a RAB to the first network device 312.

After the second network equipment receives the distribution signaling for establishing the RAB sent by the MSC, the process for establishing the RAB is initiated. Specifically, the second network device sets up a debounce function while sending a first RAB establishment request to the first network device. The function of de-jittering includes the function of adding time information and the function of adding a sending sequence number. The first RAB establishment request is used to instruct the first network device to start RAB establishment.

313, the first network device receives the first RAB establishment request, establishes a service bearer with the second network device, and sends a second RAB establishment request to the UE.

The first network device establishes the RAB in accordance with the first RAB establishment request. Specifically, RAB establishment with the second network device is started, and a second RAB establishment request is sent to the UE. Wherein the second RAB establishment request is used to instruct the UE to prepare relevant parameters for RAB establishment.

314, after receiving the second RAB establishment request, the UE sends a second RAB establishment response to the first network device.

After receiving the second RAB establishment request, the UE prepares relevant parameters for RAB establishment according to the second RAB establishment request, and starts the debounce function.

And 315, after receiving the second RAB establishment response, the first network equipment establishes a service bearer with the UE.

The first network device sends a first establish RAB response to the second network device 316.

The second network device sends 317 a RAB setup complete reply message to the MSC.

And after the second network equipment knows that the first network equipment and the UE complete RAB establishment and the first network equipment also complete RAB establishment, the second network equipment sends an RAB establishment completion reply to the MSC.

After receiving the RAB establishment completion reply message sent by the second network device, the MSC starts to transmit voice data in the first standard.

In the embodiment of the invention, the first network equipment and the UE can bear the voice service through the wireless resource of the first standard, so that the cost of the LTE for supporting the voice service is reduced, and the time delay for establishing the voice service is reduced.

As shown in fig. 4, an embodiment of the present invention provides a device 40 for carrying a circuit voice service, where the device 40 is a network device of a first standard, and the device 40 includes: the device comprises a receiving module 401, a generating module 402, a sending module 403 and a processing module 404.

The receiving module 401 is configured to receive, through the first interface, a paging message sent by a second network device, and provide the paging message to the generating module 402, where the second network device is a network device of a second standard or a network device compatible with the first standard and the second standard, and the paging message carries an ID of the UE.

The apparatus 40 is an eNB of LTE or an AP of WLAN; the second network device is an RNC of the UMTS, or a BSC of the GSM, or an SRC responsible for coordinating multiple system resources.

The first interface is an interface for connecting the apparatus 40 and the second network device; the second interface is a first standard air interface between the first network equipment and the UE.

A generating module 402, configured to generate a first message according to the paging message provided by the receiving module 401 and the UE state corresponding to the ID of the UE, and provide the first message to the sending module 403, where the first message is used to indicate that the UE accesses to the network of the first system.

A sending module 403, configured to send the first message provided by the generating module 401 to the UE through the second interface.

The receiving module 401 is further configured to receive a request for establishing a voice service, which is sent by the UE through the second interface, and provide the request for establishing the voice service to the processing module 404.

A processing module 404, configured to allocate, to the UE, a radio resource of the first standard for carrying the voice service according to the request for establishing the voice service received by the receiving module 401.

Further, as shown in fig. 5, an apparatus 50 for carrying circuit voice service further includes: an acquisition module 405 and a setup module 406.

Before the generating module 402 generates the first message, an obtaining module 405 is configured to obtain a UE status, where the UE status includes any one of the following manners: the UE is in an idle state, and the UE is in a state of being connected with the apparatus 50 (or the apparatus 40).

In addition, the first message includes indication information, and the indication information is used for indicating the UE to access the first-system network.

When the UE is in an idle state, the first message further comprises a paging message; alternatively, when the UE is in a connected state with the apparatus 50 (apparatus 40), the first message further includes an RRC reconfiguration message. That is, when the UE is in the idle state, the generating module 402 generates a first message including the indication information and the paging information; when the UE is in a connected state with the apparatus 50 (apparatus 40), the generating module 402 generates a first message including the indication information and the RRC reconfiguration message.

It is further noted that, when the UE is in the idle state, the establishing module 406 is configured to establish an RRC connection with the UE.

After the sending module 403 sends the first message to the UE, the sending module 403 is further configured to send a decoupling command to the UE through the second interface, where the decoupling command is used to instruct the UE to encapsulate NAS data for communication between the NAS of the UE and the NAS of the core network device of the second standard in the second message. Then, the receiving module 401 receives, through the second interface, a second message that is sent by the UE and carries the decoupling indication, and provides the second message to the sending module 403, where the decoupling indication is used to instruct the sending module to forward the NAS data to the second network device. The sending module 403 sends the NAS data encapsulated in the second message to the second network device through the first interface according to the decoupling indication.

And the second message is an uplink information transmission message.

It should be noted that, in the apparatus 40 shown in fig. 4 to the apparatus 50 shown in fig. 5, specific implementation processes of the modules and contents such as information interaction among the modules may be referred to as method embodiments because the method embodiments are based on the same inventive concept, and are not described in detail herein.

The embodiment of the invention can realize that the first network equipment and the UE can bear the voice service through the wireless resource of the first standard, thereby achieving the purposes of reducing the cost of the LTE for supporting the voice service and reducing the time delay for establishing the voice service.

As shown in fig. 6, fig. 6 is a schematic diagram of a hardware structure of the first network device. The first network device may include, among other things, a transceiver 601, a memory 602, a processor 603, and a bus 604. The transceiver 601, the memory 602, and the processor 603 are communicatively connected by a bus 604.

The transceiver 601 is used for communication between the apparatus and other devices or communication networks (such as but not limited to ethernet, Radio Access Network (RAN), Wireless Local Area Network (WLAN), etc.).

The Memory 602 may be a Read Only Memory (ROM), a static Memory device, a dynamic Memory device, or a Random Access Memory (RAM). The memory 602 may store an operating system and other application programs. When the technical solution provided by the embodiment of the present invention is implemented by software or firmware, a program code for implementing the technical solution provided by the embodiment of the present invention is stored in the memory 602 and executed by the processor 603.

The processor 603 may be a general-purpose Central Processing Unit (CPU), a microprocessor, an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits, and is configured to execute related programs to implement the technical solution provided by the embodiment of the present invention.

The bus 604 may include a path that transfers information between the various components of the device, such as the transceiver 601, the memory 602, and the processor 603.

It should be noted that although the hardware shown in fig. 6 only shows the transceiver 601, the memory 602 and the processor 603 as well as the bus 604, in a specific implementation, a person skilled in the art will understand that the terminal also comprises other components necessary for realizing a normal operation. Also, hardware components for performing other functions may be included, as would be apparent to one skilled in the art, according to particular needs.

Specifically, when the server shown in fig. 6 is used to implement the apparatus shown in the embodiments of fig. 4 to fig. 5, the transceiver 601 in the apparatus is configured to receive, through the first interface, a paging message sent by the second network device, and provide the paging message to the processor 603, where the second network device is a network device of the second standard or a network device compatible with the first standard and the second standard, and the paging message carries an identifier ID of the user equipment UE.

The apparatus 60 is an eNB of LTE or an AP of WLAN; the second network device is an RNC of the UMTS, or a BSC of the GSM, or an SRC responsible for coordinating multiple system resources.

The first interface is an interface for connection between the apparatus 60 and a second network device; the second interface is a first-system air interface between the apparatus 60 and the UE.

A processor 603 connected to the memory 602 and the transceiver 601, respectively; specifically, the method and the device are configured to generate a first message according to the paging message provided by the transceiver 601 and the UE state corresponding to the ID of the UE, and provide the first message to the transceiver 601, where the first message is used to indicate that the UE accesses the first-standard network.

The first message comprises indication information, and the indication information is used for indicating the UE to access the first-system network. When the UE is in an idle state, the first message further comprises a paging message; alternatively, the first message further includes an RRC reconfiguration message when the UE is in a connected state with the apparatus 60. I.e. when the UE is in the idle state, the processor 603 generates a first message comprising an indication message and a paging message; when the UE is in a connected state with the apparatus 60, the processor 603 generates a first message including an indication message and an RRC reconfiguration message.

It should be noted that, when the UE is in the idle state, the processor 603 is also configured to establish an RRC connection with the UE.

The transceiver 601 is further configured to send the first message provided by the processor 603 to the UE through the second interface; receives a request for establishing a voice service sent by the UE through the second interface, and provides the request for establishing a voice service to the processor 603.

The processor 603 allocates radio resources of the first standard for carrying the voice service to the UE according to the request for establishing the voice service provided by the transceiver 601. The transceiver 601 then sends the UE the radio resource of the first standard for carrying the voice service allocated by the processor 603.

After the transceiver 601 sends the radio resource of the first standard for carrying the voice service allocated to the UE, the transceiver 601 is further configured to send a decoupling command to the UE, where the decoupling command is used to instruct the UE to encapsulate NAS data for communication between an NAS of the UE and an NAS of a core network device of a second standard in a second message. The UE then sends a second message to the transceiver 601 after it receives the decoupling command sent by the transceiver 601. The transceiver 601 receives a second message carrying a decoupling indication sent by the UE through a second interface, where the decoupling indication is used to instruct the transceiver 603 to forward NAS data to a second network device; and sending the NAS data encapsulated in the second message to the second network equipment through the first interface according to the decoupling indication.

And the second message is an uplink information transmission message.

It will be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method for carrying circuit voice traffic, comprising:

a first network device receives a paging message sent by a second network device through a first interface, wherein the first network device is a network device of a first standard, the second network device is a network device of a second standard or a network device compatible with the first standard and the second standard, and the paging message carries an identification ID of User Equipment (UE); the first standard is a Long Term Evolution (LTE) network or a Wireless Local Area Network (WLAN); the second standard is a Universal Mobile Telecommunications System (UMTS) network or a global system for mobile communications (GSM) network; the first network device is the base station eNB of the LTE or the wireless access point AP of the WLAN, and the second network device is the radio network controller RNC of the UMTS or the base station controller BSC of the GSM or the unified radio controller SRC responsible for coordinating multiple system resources; the first interface is an interface connected between the first network device and the second network device;

the first network equipment generates a first message according to the paging message and the UE state corresponding to the ID of the UE, and sends the first message to the UE through a second interface, wherein the first message is used for indicating the UE to access a first standard network; the second interface is a first standard air interface between the first network equipment and the UE;

2. The method of claim 1, wherein before the first network device generates the first message according to the paging message and a UE status corresponding to the UE ID, the method further comprises:

3. The method according to claim 1 or 2, wherein the first message includes indication information for indicating the UE to access the first-standard network;

4. The method of claim 3, wherein after the sending the first message to the UE over the second interface while the UE is in the idle state, the method further comprises:

the first network device establishes an RRC connection with the UE.

5. The method of claim 3, wherein after the sending the first message to the UE over the second interface, further comprising:

6. The method of claim 5, wherein the second message is an uplink information transfer message.

7. An apparatus for carrying circuit voice service, wherein the apparatus is a network device of a first standard, and the apparatus comprises:

a receiving module, configured to receive, through a first interface, a paging message sent by a second network device, and provide the paging message to a generating module, where the second network device is a network device of a second standard or a network device compatible with the first standard and the second standard, and the paging message carries an identifier ID of a user equipment UE; the first standard is a Long Term Evolution (LTE) network or a Wireless Local Area Network (WLAN); the second standard is a Universal Mobile Telecommunications System (UMTS) network or a global system for mobile communications (GSM) network; the device is a base station eNB of the LTE or a wireless access point AP of the WLAN; the second network device is a radio network controller RNC of the UMTS, or a base station controller BSC of the GSM, or a unified radio controller SRC which is responsible for coordinating a plurality of system resources; the first interface is an interface connected between the apparatus and the second network device;

the sending module is configured to send the first message provided by the generating module to the UE through a second interface; the second interface is a first standard air interface between the device and the UE;

8. The apparatus of claim 7, further comprising:

9. The apparatus according to claim 7 or 8,

10. The apparatus of claim 9, further comprising:

an establishing module, configured to establish an RRC connection with the UE.

11. The apparatus of claim 9,

12. The apparatus of claim 11, wherein the second message is an uplink information transfer message.

13. An apparatus for carrying circuit voice service, wherein the apparatus is a network device of a first standard, and the apparatus comprises:

a memory for storing information including program instructions;

the transceiver is used for receiving a paging message sent by second network equipment through a first interface and providing the paging message to the processor, wherein the second network equipment is network equipment of a second standard or network equipment compatible with the first standard and the second standard, and the paging message carries an identification ID of User Equipment (UE); the first standard is a Long Term Evolution (LTE) network or a Wireless Local Area Network (WLAN); the second standard is a Universal Mobile Telecommunications System (UMTS) network or a global system for mobile communications (GSM) network; the device is a base station eNB of the LTE or a wireless access point AP of the WLAN; the second network device is a radio network controller RNC of the UMTS, or a base station controller BSC of the GSM, or a unified radio controller SRC which is responsible for coordinating a plurality of system resources; the first interface is an interface connected between the apparatus and the second network device;

the transceiver is further configured to send the first message provided by the processor to the UE through a second interface; receiving a voice service establishing request sent by the UE through the second interface, and providing the voice service establishing request to the processor; the second interface is a first standard air interface between the device and the UE;

14. The apparatus of claim 13,

15. The apparatus of claim 13 or 14,

16. The apparatus of claim 15,

the processor is further configured to establish an RRC connection with the UE.

17. The apparatus of claim 15,

18. The apparatus of claim 17, wherein the second message is an uplink information transfer message.