WO2017049586A1

WO2017049586A1 - Method and system for granting speaking right

Info

Publication number: WO2017049586A1
Application number: PCT/CN2015/090727
Authority: WO
Inventors: 杨河山
Original assignee: 海能达通信股份有限公司
Priority date: 2015-09-25
Filing date: 2015-09-25
Publication date: 2017-03-30

Abstract

Provided are a method and system for granting a speaking right. In the method provided in the present invention, since the extended activate dedicated EPS bearer context request sent to the terminal by the core network comprises speaking right grant information and multimedia information, i.e. while well establishing a bearer for uplink and downlink air interface messages of the terminal, the core network actively grants a speaking right to the terminal, the terminal can determine that the core network has granted the speaking right when receiving the extended activate dedicated EPS bearer context request, and switches into a speaking right state immediately according to the multimedia information; the core network does not need to send, to the terminal, a call accept message or a speaking right grant message carrying speaking right information, and the terminal also does not need to return, to the core network, a call accept message or a speaking right grant ack message. This reduces the number of times of sending air interface messages and reduces the time delay for granting a speaking right.

Description

Method and system for granting voice right

Technical field

The present invention relates to the field of communication technologies, and in particular, to a method and system for granting a voice.

Background technique

The Long Term Evolution (LTE) cluster private network technology is constantly evolving, and users hope to have a fast voice granting speed, so as to achieve faster switching of voice rights. In the prior art, the terminal may request a voice right to the core network when initiating a group call request (Call Request); or, when the terminal is in the group call listening state, the terminal requests a voice right from the core network.

In the prior art, as shown in FIG. 1 , when the core network grants a voice to the terminal, the core network initiates an Activate dedicated EPS Bearer Context Request message to the terminal, and the terminal returns an activated dedicated bearer to the core network. Accept (Activate Dedicated EPS Bearer Context Accept) message. The core network then sends a Call Accept message or a Grant Grant message (Grant) carrying the voice right information to the terminal. After receiving the Call Accept message or the Grant Grant message carrying the voice right information, the terminal returns a Call Complete message or a voice right confirmation message to the core network (Grant Ack). ). At this time, the terminal can enter the voice right state and start the session.

When the above-mentioned method is used to implement the granting of the utterance right, the technical staff of the present invention has the following disadvantages: when the core network initiates the activation of the dedicated bearer request message to the terminal, the bearer of the uplink and downlink air interface messages of the core network to the terminal is already However, at this time, the terminal also needs to wait for the group call accept message or the utterance right grant message sent by the core network to carry the voice right information, and return the group call acceptance confirmation message or the voice right confirmation message to the core network. Start a conversation. That is, after the core network establishes the bearer of the air interface message of the terminal, the session cannot be started immediately, and the delay for granting the voice right is long, especially when the environment of the air interface message is poor or the interference of the air interface message is strong. The probability of losing or repeating the air interface message carrying the acknowledgement message or the voice right confirmation message is increased, and the delay of granting the voice right is further increased.

Summary of the invention

The technical problem to be solved by the present invention is to provide a method and system for granting a voice right, so as to solve the problem that the core network can not start the session immediately after the bearer of the air interface message of the terminal is established in the prior art. The problem of delay in granting the right to speak.

To this end, the technical solution of the present invention to solve the technical problem is:

A first aspect of the present invention provides a method of granting a voice right, the method comprising:

The terminal sends a request message to the core network, where the request message includes an identifier of the terminal;

Receiving, by the core network, the request message, granting a voice right to the terminal according to the content of the request information, and sending an extended activation dedicated bearer request message to the terminal according to the identifier of the terminal, the extended activation The dedicated bearer request message includes voice right authorization information and multimedia information;

Receiving, by the terminal, the extended activation dedicated bearer request message, determining, according to the voice right authorization information, that the core network grants a voice right, and converting a voice right state according to the multimedia information, and returning to the core network The dedicated bearer accepts the message.

In a first possible implementation manner of the first aspect of the present invention,

The extended activation dedicated bearer request message includes a right state status Floor Status field and a session description protocol SDP field, and the Floor Status field includes voice right authorization information, and the SDP field includes multimedia information.

With reference to the first possible implementation manner of the first aspect of the present invention, in a second possible implementation manner,

The code format Format in the Floor Status field is a type value TV, the Presecce is optional, and the length Length is 2 bytes. The Type in the Format of the Floor Status field is used to indicate the type of the Floor Status field. The value Value includes the voice right authorization information.

With reference to the first possible implementation manner of the first aspect of the present invention, in a third possible implementation manner,

The codec format Format in the SDP field is a type value TV, the presentation Presecce is optional, and the length Length is 24 bytes, and the Type in the Format of the SDP field is used to indicate the type of the SDP field, and the value Value includes Multimedia information.

With reference to the first possible implementation of the first aspect of the present invention to the third possible implementation of the first aspect, in a fourth possible implementation,

The multimedia information includes a codec format, an IP address of the core network, and port information of the core network.

In a fifth possible implementation manner of the first aspect, the sending, by the terminal, the request message to the core network includes:

Sending, by the terminal, a group call request message to the core network;

or,

The terminal sends a voice right request message to the core network.

A second aspect of the present invention provides a system for granting a voice, the system comprising:

a terminal, and a core network that establishes a communication connection with the terminal;

The terminal includes a first transmitter, a first receiver, and a first processor respectively connected to the first transmitter and the first receiver;

The first sender is configured to send a request message to the core network, and return a dedicated bearer accept message to the core network, where the request message includes voice right request information;

The first receiver is configured to receive the extended activation dedicated bearer request message;

The first processor is configured to determine, according to the voice right authorization information, that the core network grants a voice right, and converts to a voice right state according to the multimedia information;

The core network includes a second transmitter, a second receiver, and a second processor respectively connected to the second transmitter and the second receiver;

The second receiver is configured to receive the request message;

The second processor is configured to determine, according to the content of the request information, grant a voice to the terminal;

The second transmitter is configured to send an extended activation dedicated bearer request message to the terminal according to the identifier of the terminal, where the extended activated dedicated bearer request message includes voice right authorization information and multimedia information.

A first possible implementation manner of the second aspect of the present invention is characterized in that

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

The first transmitter is configured to send a group call request message to the core network;

Alternatively, a voice right request message is sent to the core network.

A third aspect of the present invention provides a terminal, where the terminal includes:

a transmitter, a receiver, and a processor respectively connected to the transmitter and the receiver;

The transmitter is configured to send a request message to the core network, and return a dedicated bearer accept message to the core network, where the request message includes the voice right request information;

The receiver is configured to receive the extended activation dedicated bearer request message;

The processor is configured to determine, according to the voice right authorization information, that the core network grants a voice right, and converts to a voice right state according to the multimedia information.

A fourth aspect of the present invention provides a core network, where the core network includes:

The receiver is configured to receive the request message;

The processor is configured to determine, according to the content of the request information, grant a voice to the terminal;

The transmitter is configured to send, according to the identifier of the terminal, an extended activated dedicated bearer request message to the terminal, where the extended activated dedicated bearer request message includes voice right authorization information and multimedia information.

According to the above technical solution, the present invention has the following beneficial effects:

The present invention provides a method and system for granting a voice right, the terminal sends a request message to the core network, the request message includes an identifier of the terminal, and the core network receives the request message according to the content of the request message. Determining to grant the utterance right to the terminal, and sending an extended activation dedicated bearer request message to the terminal according to the identifier of the terminal, where the extended activation dedicated bearer request message includes utterance authority authorization information and multimedia information; Deriving an activated dedicated bearer request message, determining, according to the voice right authorization information, that the core network grants a voice right, and converting the multimedia information into a voice right state, and returning a dedicated bearer reception to the core network Message. The voice activation authority request information is sent to the terminal by the core network, and the core network provides the bearer of the uplink and downlink air interface messages to the terminal. The terminal grants the right to speak, and the terminal may receive the activated dedicated bearer of the extension. When requested, determining that the core network grants a voice right, and immediately converts to a voice right state according to the multimedia information, and the core network does not need to send a group call acceptance message or a voice right grant message carrying the voice right information to the terminal. And the terminal does not need to return the group call acceptance confirmation message or the voice right confirmation message to the core network, thereby reducing the number of times the air interface message is sent, and reducing the delay of granting the voice right.

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 embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a timing diagram of a method for granting a voice right provided by the prior art;

2 is a real-time sequence diagram of a method for granting a voice right according to the present invention;

3 is a sequence diagram of a scenario for granting a voice right according to the present invention;

4 is a sequence diagram of a scenario 2 of a method for granting a voice right according to the present invention;

FIG. 5 is a schematic structural diagram of a system for granting a voice right according to the present invention; FIG.

FIG. 6 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of a core network according to an embodiment of the present invention.

detailed description

In order to give a realization scheme for the core network in the LTE cluster private network to quickly grant the right to speak to the terminal,

Embodiments of the present invention provide a method and system for granting a voice right.

Preferred embodiments of the invention are described.

2 is a real-time sequence diagram of a method for granting a voice right according to the present invention, the method comprising:

201: The terminal sends a request message to the core network, where the request message includes an identifier of the terminal.

A request message sent by the terminal to the core network is used to request a voice right to the core network. The request message may be a group call request message. At this time, the terminal requests the right to speak when the terminal requests the group call from the core network. The request message may also be a voice right request message. At this time, when the terminal is in the group call listening state, the core network is requested to grant a voice right. The request message packet The identifier of the terminal is included so that the core network can identify the terminal that sent the request message. In the LTE trunking private network, the request message bearer is sent to the core network on an air interface message.

202: The core network receives the request message, determines, according to the content of the request message, grant a voice right to the terminal, and sends an extended activation dedicated bearer request message to the terminal according to the identifier of the terminal, where the extension The activation dedicated bearer request message includes voice right authorization information and multimedia information.

After receiving the request message sent by the terminal, the core network determines, according to the content of the request message, that the terminal requests to grant a voice right. The core network sends an extended activation dedicated bearer request message to the terminal, where the extended activated dedicated bearer request message includes voice right authorization information and multimedia information. That is, while the core network establishes the bearer of the uplink and downlink air interface messages of the terminal, the terminal is granted a voice right.

In the prior art, the active dedicated bearer request message sent by the core network to the terminal does not have the voice right authorization information, that is, when the core network establishes the bearer of the uplink and downlink air interface messages of the terminal, and The terminal was not given the right to speak. Therefore, the core network further needs to send a group call accept message or a voice right grant message carrying the voice right information to the terminal, and the terminal further needs to return a group call acceptance confirmation message or a voice right confirmation to the core network. After the message, the terminal can be converted to a voice right state.

Therefore, in the prior art, compared with the method for granting the voice right provided by the present invention, the method for granting the voice right used in the prior art needs to transmit two air interface messages, and the delay of granting the voice right is better. Long, especially when the environment of the air interface message is poor or the interference of the air interface message is strong, the probability that the air interface message carrying the acknowledgement message or the voice right confirmation message is lost or repeated transmission is higher, further increasing the delay of granting the voice right. . The method for granting the voice right provided by the invention reduces the number of air interface message transmissions and reduces the delay for granting the voice right.

In a specific embodiment, the extended activation dedicated bearer request message includes a Floor Status field and a Session Description Protocol (SDP) field, where the Floor Status field includes voice right authorization information, and the SDP field includes multimedia. information.

Specifically, in the LTE trunking private network, the 3GPP protocol is adopted, and the codec format Format in the right state of the right state is a type value TV, and the Presecce is optional, in the 3GPP protocol. In the discussion, the field Presecce is represented by an "0", indicating that the field Presecce is optional, and the length Length is 2 bytes. The Type in the Format of the Floor Status field is used to indicate the type of the Floor Status field, and the value is Includes voice authorization information.

Specifically, in the LTE trunking private network, the 3GPP protocol is adopted, and the Format in the SDP field is a type value TV, Presecce is optional, and is represented by “O”, the Length is 24 bytes, and the format of the SDP field is Type is used to indicate the type of the SDP field, and Value includes multimedia information.

Specifically, the multimedia information includes a codec format, an IP address of the core network, and port information of the core network.

For example, when the value of the Floor Status field is set to 1, the core network grants a voice utterance to the terminal; when the value of the Floor Status field is set to 2, the core network grants a video utterance to the terminal. The codec format in the multimedia information is a voice codec format or a video codec format, that is, when the core network grants a voice utterance right to the terminal, the codec format is a voice codec format; When the terminal grants the video utterance right, the codec format is a video codec format. The IP address of the core network refers to the multimedia IP address of the multimedia content sent by the receiving terminal in the core network. The port information of the core network refers to the port information of the multimedia in the core network that receives the multimedia content sent by the terminal.

203: The terminal receives the extended activation dedicated bearer request message, where the determining, according to the voice right authorization information, the core network grants a voice right, and converting the multimedia information into a voice right state, and reporting the The core network returns a dedicated bearer accept message.

The terminal receives the extended activation dedicated bearer request message sent by the core network, and may obtain the voice right authorization message and the multimedia information from the extended activated dedicated bearer request message, and determine according to the voice right authorization message. The core network grants a voice right to know the type of voice rights granted by the core network. The multimedia information may also be obtained from the extended activation dedicated bearer request message, and the terminal may convert the state into a voice right state according to the multimedia information, that is, convert to a voice voice right or a video voice right, and start a session. And the terminal also returns a dedicated bearer accept message to the core network. At this time, the process of granting the voice right to the terminal by the core network ends.

FIG. 3 is a sequence diagram of a scenario for granting a voice right according to the present invention. In scenario 1, the terminal is Sending a group call request message to the core network, where the method includes:

301: The terminal sends a group call request message to the core network, where the group call request message includes an identifier of the terminal.

302: The core network receives the request message, determines, according to the voice right request information, grant a voice right to the terminal, and sends an extended activation dedicated bearer request message to the terminal according to the identifier of the terminal, where the extension The activation dedicated bearer request message includes voice right authorization information and multimedia information.

303: The terminal receives the extended activation dedicated bearer request message, where the determining, according to the voice right authorization information, the core network grants a voice right, and converting the multimedia information into a voice right state according to the multimedia information, and reporting the The core network returns a dedicated bearer accept message.

In the method for granting the voice right shown in FIG. 3, when the terminal requests to initiate a group call request to the core network, the terminal requests the voice right to the core network by default. The implementation of the utterance right is similar to the method shown in FIG. 2, and the description in the method shown in FIG. 2 will not be repeated here.

FIG. 4 is a sequence diagram of a method for granting a voice right according to the present invention. In the first scenario, the terminal sends a call request message to the core network, where the method includes:

401: The terminal sends a voice right request message to the core network, where the voice right request message includes an identifier of the terminal.

402: The core network receives the request message, determines, according to the voice right request information, grant a voice right to the terminal, and sends an extended activation dedicated bearer request message to the terminal according to the identifier of the terminal, where the extension The activation dedicated bearer request message includes voice right authorization information and multimedia information.

403: The terminal receives the extended activation dedicated bearer request message, where the determining, according to the voice right authorization information, that the core network grants a voice right, and converting the multimedia information into a voice right state, and speaking, The core network returns a dedicated bearer accept message.

In the method for granting the voice right shown in FIG. 4, the terminal requests the core network to grant the voice right when the group call is in the listening state. The implementation of the utterance right is similar to the method shown in FIG. 2, and the description in the method shown in FIG. 2 will not be repeated here.

FIG. 5 is a schematic structural diagram of a system for granting a voice right according to an embodiment of the present disclosure, where the system includes:

The terminal 501, and a core network 502 that establishes a communication connection with the terminal 501.

The terminal 501 includes a first transmitter 503, a first receiver 504, and a first processor 505 connected to the first transmitter 503 and the first receiver 504, respectively.

The first transmitter 503 is configured to send a request message to the core network 502, and return a dedicated bearer accept message to the core network 502, where the request message includes an identifier of the terminal.

The first receiver 504 is configured to receive the extended activation dedicated bearer request message.

The first processor 505 is configured to determine, according to the voice right authorization information, that the core network 502 grants a voice right, and converts to a voice right state according to the multimedia information.

The core network 502 includes a second transmitter 506, a second receiver 507, and a second processor 508 coupled to the second transmitter 506 and the second receiver 507, respectively.

The second receiver 507 is configured to receive the request message.

The second processor 508 is configured to determine, according to the content of the request information, grant a voice to the terminal 501.

The second transmitter 506 is configured to send an extended activation dedicated bearer request message to the terminal 501 according to the identifier of the terminal 501, where the extended activated dedicated bearer request message includes voice right authorization information and multimedia information.

Optionally, the extended activation dedicated bearer request message includes a Floor Status field and a Session Description Protocol SDP field, where the Floor Status field includes voice right authorization information, and the SDP field includes multimedia information.

Optionally, the codec format Format in the Floor Status field is a type value TV, and the presentation Presecce is optional, represented by “O”, the length Length is 2 bytes, and the type of the format of the Floor Status field is used. In indicating the type of the Floor Status field, the value Value includes the voice right authorization information.

Optionally, the codec format Format in the SDP field is a type value TV, and the presentation Presecce is optional, represented by “O”, the length Length is 24 bytes, and the Type Type in the Format of the SDP field is used to indicate The type of the SDP field, the value Value includes multimedia information.

Optionally, the multimedia information includes a codec format, an IP address of the core network, and port information of the core network.

Optionally, the first sender 503 is configured to send a group call request message to the core network.

Alternatively, a voice right request message is sent to the core network.

The system for granting the utterance right shown in FIG. 5 is a system corresponding to the method for granting utterance rights shown in FIG. 2, and the specific implementation method is similar to the method shown in FIG. 2, with reference to the description in the method shown in FIG. I won't go into details here.

FIG. 6 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure, where the terminal includes:

A transmitter 601, a receiver 602, and a processor 603 connected to the transmitter 601 and the receiver 602, respectively.

The sender 601 is configured to send a request message to the core network, and return a dedicated bearer accept message to the core network, where the request message includes the voice right request information.

The receiver 602 is configured to receive the extended activation dedicated bearer request message.

The processor 603 is configured to determine, according to the voice right authorization information, that the core network grants a voice right, and converts to a voice right state according to the multimedia information.

Optionally, the sender 601 is configured to send, by the core network, a group call request message;

Alternatively, a voice right request message is sent to the core network.

The terminal shown in FIG. 6 is a terminal corresponding to the method for granting the voice right shown in FIG. 2. The specific implementation method is similar to the method shown in FIG. 2, and the description in the method shown in FIG. 2 is omitted here. .

FIG. 7 is a schematic structural diagram of a core network according to an embodiment of the present disclosure, where the core network includes:

A transmitter 701, a receiver 702, and a processor 703 connected to the transmitter 701 and the receiver 702, respectively.

The receiver 702 is configured to receive the request message.

The processor 703 is configured to determine, according to the content of the request information, granting a voice to the terminal;

The transmitter 701 is configured to send, according to the identifier of the terminal, an extended activated dedicated bearer request message to the terminal, where the extended activated dedicated bearer request message includes voice right authorization information and multimedia information.

The core network shown in FIG. 7 is a core network corresponding to the method for granting voice rights shown in FIG. 2. The specific implementation method is similar to the method shown in FIG. 2, and is described in the method shown in FIG. Let me repeat.

The above description is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It is considered as the scope of protection of the present invention.

Claims

A method of granting a voice right, the method comprising:

The terminal sends a request message to the core network, where the request message includes an identifier of the terminal;

Receiving, by the core network, the request message, granting a voice right to the terminal according to the content of the request information, and sending an extended activation dedicated bearer request message to the terminal according to the identifier of the terminal, the extended activation The dedicated bearer request message includes voice right authorization information and multimedia information;

Receiving, by the terminal, the extended activation dedicated bearer request message, determining, according to the voice right authorization information, that the core network grants a voice right, and converting a voice right state according to the multimedia information, and returning to the core network The dedicated bearer accepts the message.
The method of claim 1 wherein

The extended activation dedicated bearer request message includes a right state status Floor Status field and a session description protocol SDP field, and the Floor Status field includes voice right authorization information, and the SDP field includes multimedia information.
The method of claim 2 wherein:

The code format Format in the Floor Status field is a type value TV, the Presecce is optional, and the length Length is 2 bytes. The Type in the Format of the Floor Status field is used to indicate the type of the Floor Status field. The value Value includes the voice right authorization information.
The method of claim 2 wherein:

The codec format Format in the SDP field is a type value TV, the presentation Presecce is optional, and the length Length is 24 bytes, and the Type in the Format of the SDP field is used to indicate the type of the SDP field, and the value Value includes Multimedia information.
A method according to any of claims 2-4, characterized in that

The multimedia information includes a codec format, an IP address of the core network, and port information of the core network.
The method according to claim 1, wherein the sending, by the terminal, the request message to the core network comprises:

Sending, by the terminal, a group call request message to the core network;

or,

The terminal sends a voice right request message to the core network.
A system for granting a voice, characterized in that the system comprises:

a terminal, and a core network that establishes a communication connection with the terminal;

The terminal includes a first transmitter, a first receiver, and a first processor respectively connected to the first transmitter and the first receiver;

The first sender is configured to send a request message to the core network, and return a dedicated bearer accept message to the core network, where the request message includes voice right request information;

The first receiver is configured to receive the extended activation dedicated bearer request message;

The first processor is configured to determine, according to the voice right authorization information, that the core network grants a voice right, and converts to a voice right state according to the multimedia information;

The core network includes a second transmitter, a second receiver, and a second processor respectively connected to the second transmitter and the second receiver;

The second receiver is configured to receive the request message;

The second processor is configured to determine, according to the content of the request information, grant a voice to the terminal;

The second transmitter is configured to send an extended activation dedicated bearer request message to the terminal according to the identifier of the terminal, where the extended activated dedicated bearer request message includes voice right authorization information and multimedia information.
The system of claim 7 wherein:

The extended activation dedicated bearer request message includes a right state status Floor Status field and a session description protocol SDP field, and the Floor Status field includes voice right authorization information, and the SDP field includes multimedia information.
A system according to any one of claims 7-8, wherein

The first transmitter is configured to send a group call request message to the core network;

Alternatively, a voice right request message is sent to the core network.
A terminal, wherein the terminal comprises:

a transmitter, a receiver, and a processor respectively connected to the transmitter and the receiver;

The transmitter is configured to send a request message to the core network, and return a dedicated bearer accept message to the core network, where the request message includes the voice right request information;

The receiver is configured to receive the extended activation dedicated bearer request message;

The processor is configured to determine, according to the voice right authorization information, that the core network grants a voice right, and converts to a voice right state according to the multimedia information.
A core network, characterized in that the core network comprises:

a transmitter, a receiver, and a processor respectively connected to the transmitter and the receiver;

The receiver is configured to receive the request message;

The processor is configured to determine, according to the content of the request information, grant a voice to the terminal;

The transmitter is configured to send, according to the identifier of the terminal, an extended activated dedicated bearer request message to the terminal, where the extended activated dedicated bearer request message includes voice right authorization information and multimedia information.