CN109962887B - Single calling method for wide-band and narrow-band fusion and broadband core network equipment - Google Patents
Single calling method for wide-band and narrow-band fusion and broadband core network equipment Download PDFInfo
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- CN109962887B CN109962887B CN201711407939.XA CN201711407939A CN109962887B CN 109962887 B CN109962887 B CN 109962887B CN 201711407939 A CN201711407939 A CN 201711407939A CN 109962887 B CN109962887 B CN 109962887B
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
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- H04L65/1104—Session initiation protocol [SIP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
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Abstract
The embodiment of the invention provides a single calling method for wide-band and narrow-band fusion and a broadband core network device. The method comprises the steps that a broadband core network device detects a speaking right application request sent by a narrowband core network device in real time in the process of possessing the speaking right of a data channel between the broadband core network device and the narrowband core network device; if detecting and receiving the speaking right application request sent by the narrow-band core network equipment, the wide-band core network equipment releases the speaking right and sends a response message of agreeing to the application to the narrow-band core network equipment.
Description
Technical Field
The embodiment of the invention relates to the technical field of mobile communication, in particular to a single calling method for wide-band and narrow-band integration and a broadband core network device.
Background
A wide-band and narrow-band integrated cluster communication system is a hot topic in recent domestic communication industry and application fields thereof. The system integrates a narrow-band Trunking Communication system represented by pan European Trunked Radio (TRA) and Police Digital Trunking (PDT) with a Broadband Trunking Communication (B-trunC) Broadband Trunking Communication system, supports unified subscription, unified scheduling and unified application, gets rid of dependence on an interworking gateway with poor processing capability compared with an air interface gateway interworking scheme, and improves service integration capability and reduces call service delay.
In practical use, most narrowband systems use half-duplex mode for single call based on bandwidth saving considerations, such as PDT systems. The broadband system has a transmission channel with large bandwidth and high speed, so that most single calls use a full duplex mode in practice, and the single call in the half duplex mode is also an optional function in the B-trunC standard. In the wide-band and narrow-band converged cluster communication system, for a wide-band cluster core network or a terminal, a full-duplex single call is used for a wide-band internal single call, and a narrow-band side may only support a half-duplex single call.
Not only needs to support the realization of full duplex and half duplex single call simultaneously, but also needs to select different modes according to the condition of calling the opposite terminal, thereby undoubtedly increasing the complexity of processing and realization.
Disclosure of Invention
The embodiment of the invention provides a single-call method with integrated broadband and narrowband and broadband core network equipment, which are used for solving the problems that in the prior art, the realization of full-duplex and half-duplex single call needs to be supported simultaneously, different modes need to be selected according to the condition of calling an opposite terminal, and the complexity in processing and realization is increased undoubtedly.
In a first aspect, an embodiment of the present invention provides a single call method with wideband and narrowband integration, including:
the method comprises the steps that a wideband core network device detects a speaking right application request sent by a narrowband core network device in real time in the process of possessing the speaking right of a data channel between the wideband core network device and the narrowband core network device;
and if detecting that the speaking right application request sent by the narrowband core network equipment is received, the broadband core network equipment releases the speaking right and sends a response message of agreeing to the application to the narrowband core network equipment.
In a second aspect, an embodiment of the present invention provides a broadband core network device for a single call method for broadband and narrowband convergence, including:
the first receiving module is used for detecting the speaking right application request sent by the narrow-band core network equipment in real time in the process of possessing the speaking right of a data channel between the first receiving module and the narrow-band core network equipment;
the first sending module is used for releasing the speaking right by the broadband core network device and sending a response message of agreeing to the application to the narrowband core network device if detecting that the speaking right application request sent by the narrowband core network device is received.
In a third aspect, an embodiment of the present invention further provides an electronic device, including:
a processor, a memory, a communication interface, and a bus; wherein the content of the first and second substances,
the processor, the memory and the communication interface complete mutual communication through the bus;
the communication interface is used for information transmission between communication devices of the electronic equipment;
the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform a method comprising:
the method comprises the steps that a wideband core network device detects a speaking right application request sent by a narrowband core network device in real time in the process of possessing the speaking right of a data channel between the wideband core network device and the narrowband core network device;
and if detecting that the speaking right application request sent by the narrowband core network equipment is received, the broadband core network equipment releases the speaking right and sends a response message of agreeing to the application to the narrowband core network equipment.
In a fourth aspect, an embodiment of the present invention further provides a storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the following method:
the method comprises the steps that a wideband core network device detects a speaking right application request sent by a narrowband core network device in real time in the process of possessing the speaking right of a data channel between the wideband core network device and the narrowband core network device;
and if detecting that the speaking right application request sent by the narrowband core network equipment is received, the broadband core network equipment releases the speaking right and sends a response message of agreeing to the application to the narrowband core network equipment.
According to the single calling method with the integration of the narrow band and the wide band and the broadband core network equipment, the narrow band terminal initiates the speaking right application request to enable the narrow band terminal to become a sending direction to send the narrow band data packet to the broadband terminal, and after the narrow band terminal initiates the speaking right release request, the broadband core network equipment can immediately send the speaking right application request to enable the broadband terminal to send the broadband data packet to the narrow band terminal, so that the half-duplex single calling of the narrow band terminal and the broadband terminal is simply and conveniently realized.
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FIG. 1 is a flow chart of a single call method of broadband and narrowband integration according to an embodiment of the present invention;
FIG. 2 is a flowchart of another single call method for wideband and narrowband integration according to an embodiment of the present invention;
fig. 3 is a diagram of a broadband core network device network structure of a single call method for broadband and narrowband convergence according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.
To implement the single call method for merging wide and narrow bands of the embodiment of the present invention, a system at least comprising a wideband core network device and a narrowband core network device connected to each other, at least one wideband terminal connected to the wideband core network device, and at least one narrowband terminal connected to the narrowband core network device is required. Therefore, a single call between a narrowband terminal and a wideband terminal is realized, wherein the wideband terminal may also be a wideband scheduling platform, but for convenience of description, in the following embodiments, only the wideband terminal is taken as an example for illustration.
Fig. 1 is a flowchart of a single call method for wideband and narrowband fusion according to an embodiment of the present invention, and as shown in fig. 1, the method includes:
step S01, the broadband core network device detects in real time the speaking right application request sent by the narrowband core network device in the process of possessing the speaking right of the data channel with the narrowband core network device.
After a data channel is established between a narrow-band terminal and a wide-band terminal, the wide-band terminal and the wide-band core network device perform data transmission in a full-duplex mode, that is, two ends can simultaneously transmit data packets to each other, and the narrow-band terminal performs data transmission in a half-duplex mode between the narrow-band core network device and the wide-band core network device, that is, between the narrow-band terminal and the narrow-band core network device and between the narrow-band core network device and the wide-band core network device, data packets can be transmitted from one end to the other end at the same time.
In a conventional duplex-off mode communication system, two terminals need to apply for the right to speak by sending a right to speak application request, i.e., the right to transmit a data packet by occupying a data channel, before preparing to transmit the data packet to the other. In the stage that one party occupies the data channel, the other party can only be in the state of the receiving party, and the data channel can only be attempted to be occupied by initiating the speaking right application request after the party occupying the data channel releases the speaking right by sending the speaking right release request.
In the embodiment of the invention, the narrowband terminal has higher priority than the broadband terminal. In the process that the broadband core network device has the speaking right of the data channel between the broadband core network device and the narrowband core network device, the broadband core network device can send a broadband data packet to the narrowband core network device, and meanwhile, the broadband core network device can also detect whether a speaking right application request sent by the narrowband core network is received in real time.
And the narrowband terminal on the other side can completely send a speaking right application request to the narrowband core network equipment according to the self requirement regardless of whether the current data channel is occupied, and the narrowband core network equipment can forward the speaking right application request to the broadband core network equipment. The transmission of control information or signaling between the narrowband terminal and the narrowband core network device may be performed according to a Protocol agreed by different narrowband trunking communication systems, and the narrowband core network device and the broadband core network device may be sent by a Session Initiation Protocol (SIP) signaling, for example, the right-to-speak application request may be an UPDATE message, and of course, a communication Protocol mutually sent between specific endpoints may be set according to actual needs, which is not specifically limited herein.
Step S02, if it is detected that the speaking right application request sent by the narrowband core network device is received, the broadband core network device releases the speaking right, and sends a response message agreeing to the application to the narrowband core network device.
In addition, when receiving the speaking right application request sent by the narrowband core network device, the broadband core network device immediately releases the speaking right if just occupying the data channel, namely, if the data channel has the speaking right, and immediately replies a response message of agreeing to the application, wherein the response message of agreeing to the application can be a 200OK message of an SIP signaling, and the narrowband core network device forwards the response message of agreeing to the application to the narrowband terminal.
After receiving the response message of agreeing to the application, the narrowband terminal determines that the narrowband terminal has acquired the speaking right of the data channel, and at this time, the narrowband terminal becomes a pure sender and can send a narrowband data packet to the narrowband core network device. And the narrowband core network equipment sends the narrowband data packet to the broadband core network equipment. Because the broadband core network device and the broadband terminal adopt a full duplex mode, the broadband core network device can directly send the narrowband data packet to the broadband terminal regardless of the state of the broadband terminal.
In the time period when the narrowband terminal obtains the speaking right, although the broadband terminal can still send the broadband data packets to the broadband core network device, the broadband core network device cannot send the broadband data packets to the narrowband core network device because the broadband core network device does not obtain the speaking right of the data channel between the broadband core network device and the narrowband core network device at this time, and therefore the broadband data packets are directly discarded by the broadband core network device.
The embodiment of the invention ensures that the narrow-band terminal can initiate the speaking right application request and has the speaking right regardless of the state of the data channel by ensuring that the narrow-band terminal has higher priority in the process of realizing single calling with the wide-band terminal, thereby simply and conveniently realizing half-duplex single calling of the narrow-band terminal and the wide-band terminal.
Fig. 2 is a flowchart of another single-call method for narrowband and wideband fusion according to another embodiment of the present invention, and as shown in fig. 2, after step S02, the method further includes:
step S03, the broadband core network device receives a speaking right release request sent by the narrowband core network device, where the speaking right release request is used to indicate that the narrowband core network device needs to release the speaking right.
When the narrowband terminal has finished sending the narrowband data packet and judges that no data channel needs to be used any more, sending a speaking right release request to the narrowband core network equipment, and then sending the speaking right release request to the broadband core network equipment by the narrowband core network equipment, wherein the speaking right release request can also be an UPDATE message of an SIP signaling.
Step S04, the broadband core network device sends an speaking right application request for applying the speaking right to the narrowband core network device after sending a response message agreeing to release to the narrowband core network device.
After receiving the request for releasing the right to speak, the broadband core network device replies a response message for releasing the right to speak to the narrowband core network device, and the response message for releasing the right to speak can still be sent by a 200OK message of SIP signaling. And the narrowband core network equipment sends the response message of agreeing to release to the narrowband terminal.
Meanwhile, in order to immediately occupy the released data communication head, the broadband core network device immediately sends a speaking right application request to the narrowband core network device, so that the speaking right can be obtained as soon as possible.
After receiving the speaking right application request sent by the broadband core network device, the narrowband core network device immediately replies a response message of agreeing to the application to the broadband core network device under the condition of no other competitors.
After receiving the response message of agreeing to the application, the broadband core network device judges that the broadband core network device has obtained the speaking right, and if the broadband terminal sends a broadband data packet to the broadband core network device at the moment, the broadband core network device sends the received broadband data packet to the narrowband core network device. And the narrowband core network device sends the wideband data packet to the narrowband terminal. The narrowband terminal at this moment only becomes a receiver, and when the narrowband terminal is ready to send a narrowband data packet again, the narrowband terminal sends a speaking right application request to the narrowband core network equipment again, so that the narrowband terminal becomes a sender again.
It can be known from the above embodiment that the data channel is always in an occupied state, and when the narrowband terminal wants to send a narrowband data packet, the narrowband terminal is occupied by the narrowband terminal, and when the narrowband terminal releases the data channel, the narrowband terminal is immediately occupied by the wideband core network device.
The wideband core network equipment of the embodiment of the invention immediately sends the speaking right application request to occupy the data communication head after the narrowband terminal initiates the speaking right release request at the narrowband terminal, so that the wideband terminal sends the wideband data packet to the narrowband terminal, thereby simply and conveniently realizing the half-duplex single call of the narrowband terminal and the wideband terminal.
Based on the above embodiment, further, the method further includes:
the broadband core network equipment receives an invitation message sent by the broadband terminal, wherein the invitation message at least comprises a called terminal identification;
and if the broadband core network equipment judges that the called terminal identification corresponds to the narrowband terminal, the broadband core network equipment immediately sends a CALL PROCEEDING message to the broadband terminal, and then forwards the invitation message to the narrowband core network equipment.
It can be known from the above embodiments that the wideband terminal and the narrowband terminal need to establish a data channel between them before transmitting the wideband data packet and the narrowband data packet. In the embodiment of the present invention, the broadband terminal initiates the invitation message as an example for illustration.
The broadband core network device receives an invitation message sent by the broadband terminal, wherein the invitation message at least comprises a called terminal identification. The communication protocol of the control information or signaling between the broadband core network device and the broadband terminal may be determined by the broadband trunking communication system, for example, may be an NAS interface protocol, and is not limited specifically herein. The invite message may be a CALL REQUEST message of the NAS interface protocol.
The broadband core network device can judge whether the called terminal corresponding to the called terminal identification is a broadband terminal or a narrowband terminal by identifying the called terminal identification. The specific identification method can distinguish the wideband terminal from the narrowband terminal by the prefix of each terminal identification, for example, the terminal identification of the wideband terminal starts with 1, and the terminal identification of the narrowband terminal starts with 0. If the broadband core network device judges that the called terminal identification corresponds to another broadband terminal, the broadband core network device sends the invitation information to the other broadband terminal, and single calling between the two broadband terminals is further realized. And if the called terminal identification corresponds to the narrowband terminal, the broadband core network device will immediately reply a confirmation message to the broadband terminal, namely a CALL forwarding message of the NAS interface standard, so as to conform to the signaling transmission standard sequence between the broadband trunking communication systems. According to the standard of the broadband trunking communication system, after the broadband terminal sends the invitation message, if the called terminal is another broadband terminal, the other broadband terminal replies a confirmation message called configured message, and the broadband core network device converts the called configured message into a called forwarding message and sends the CALL forwarding message to the broadband terminal. However, since the current called terminal is a narrowband terminal, the called terminal does not reply to the CALL configured message, so that the broadband core network device sends the CALL forwarding message to the broadband terminal in advance when determining that the CALL configured message is not received.
The CALL matched message and the CALL forwarding message contain media formats, and are used for enabling two communication parties to mutually determine data formats in data packets transmitted mutually. However, the narrowband core network device cannot send a corresponding CALL configured message, so that the narrowband terminal and the broadband terminal may perform packet transmission in a pre-agreed media format that can be received between each other. Or have the corresponding media format included in other signaling information for transmission. For the transmission of media formats, it can be designed according to the actual needs.
After receiving the CALL notification message, the broadband terminal starts to establish a dedicated bearer with the broadband terminal, that is, a full-duplex data channel between the broadband terminal and the broadband core network device, and the establishment process of the specific dedicated bearer is determined by the broadband trunking communication system. And meanwhile, the broadband core network equipment sends the invitation message to the narrowband core network equipment. And the narrowband core network equipment sends the invitation message to the narrowband terminal again according to the called terminal identification.
The narrowband core network device sends an invitation message to the narrowband terminal and simultaneously sends a receiving message to the broadband core network device to indicate that the narrowband terminal is TRYING to contact, wherein the receiving message may be a 100TRYING message of SIP signaling.
And after receiving the invitation message, the narrowband terminal judges whether to agree with the invitation message according to the self condition. If the narrowband terminal does not agree, the narrowband terminal sends a rejection message to the narrowband core network device and then sends the rejection message to the broadband terminal through the broadband core network device, so that the data path is failed to be established. If the narrowband terminal agrees with the invitation, the narrowband terminal replies an answer message to the narrowband core network device, and then the narrowband core network device sends the answer message to the broadband core network device, where the answer message may be a 200OK message of an SIP signaling, and then the broadband core network device sends the answer message to the broadband terminal, where the answer message at this time may be a CALL CONNECT message of an NAS interface signaling.
In an actual application process, before sending the answer message, the narrowband terminal may send, after receiving the invite message, a RING message replied to the narrowband core network device to indicate that the invite message has been received, but whether to approve the invite, where the narrowband core network device sends the RING message to the broadband core network device, and the RING message may be an SIP signaling 180 RING message. The broadband core network device may send the ringing message to the broadband terminal, where the ringing message may be an ALERTING message of an NAS interface protocol. For convenience of description, the narrowband terminal does not reply to a ringing message after receiving the invite message in the following embodiments.
Then, the wideband core network device sends a success message to the narrowband core network device to open a half-duplex data channel with the narrowband core network device, and at the same time, the narrowband core network device also opens a half-duplex data channel with the narrowband terminal.
On the other hand, the broadband terminal may send a success message to the broadband core network device to open the dedicated bearer, that is, a full-duplex data channel between the broadband terminal and the broadband core network device, where the success message may be a CALL CONNECT ACK message of an NAS interface protocol. And the data channels from the broadband terminal to the narrowband terminal are opened.
The embodiment of the invention establishes the data channel between the broadband terminal and the narrowband terminal by initiating the invitation message by the broadband terminal, thereby simply and conveniently realizing half-duplex single call between the narrowband terminal and the broadband terminal.
Based on the above embodiment, further, the method further includes:
the broadband core network equipment receives an invitation message sent by the narrowband core network equipment, wherein the invitation message at least comprises a calling terminal identification;
if the broadband core network device judges that the calling terminal identification corresponds to the narrowband terminal, sending a receiving message to the narrowband core network device to indicate that the invitation message is ready to be sent to the broadband terminal, and sending the invitation message to the broadband terminal.
Corresponding to the above embodiments, in the embodiments of the present invention, a narrowband terminal initiates an invitation message with a broadband terminal, where the narrowband terminal first sends the invitation message to the narrowband core network device, and the invitation message at least includes a calling terminal identifier. And the narrowband core network equipment sends the invitation message to the broadband core network equipment.
The broadband core network equipment identifies the received calling terminal identification, and if the calling terminal identification is judged to correspond to the narrow band terminal, the broadband core network equipment marks the call and sends the invitation message to the broadband terminal.
As can be seen from the above embodiments, the number of the invitation messages received by the broadband core network device is three, 1, a broadband terminal goes to another broadband terminal; 2, from the broadband terminal to the narrowband terminal; 3, narrowband termination to broadband termination. The broadband core network device can simultaneously detect the identification of a calling terminal and the identification of a called terminal when receiving an invitation request, and if one of the calling terminal and the called terminal corresponds to the narrowband terminal, the call is marked to indicate that the call is the call between the broadband terminal and the narrowband terminal.
After receiving the invite message, the broadband terminal replies a confirmation message to the broadband core network device, where the confirmation message may be a CALL configured message of an NAS interface protocol, to indicate that the invite message is received, and then may start to establish a dedicated bearer with the broadband core network device.
The broadband terminal then determines whether to accept the invitation sent by the narrowband terminal according to the self condition, if not, the broadband terminal sends a rejection message to the broadband core network device, and the broadband core network device and the narrowband core network device send the rejection message to the narrowband terminal, so that the invitation fails; if the broadband terminal decides to accept the invitation, the broadband terminal sends an answering message to the broadband core network device, and then the broadband core network device sends the answering message to the narrowband core network device and forwards the answering message to the narrowband terminal.
Of course, as in the above embodiment, the broadband terminal may also send the ring message before sending the listening message.
After receiving the answering message, the broadband core network device sends a success message to the broadband terminal to open the dedicated bearer, that is, open a data channel with the broadband terminal.
And after receiving the answering message, the narrowband terminal sends a success message to the narrowband core network equipment so as to open a data channel between the narrowband core network equipment and the narrowband terminal. And the narrowband core network equipment sends the success message to the broadband core network equipment to open a data channel between the narrowband core network equipment and the broadband core network equipment. And the data channel from the narrow-band terminal to the broadband terminal is successfully established.
The embodiment of the invention establishes the data channel between the broadband terminal and the narrowband terminal by the narrowband terminal initiating the invitation message, thereby simply and conveniently realizing the half-duplex single call between the narrowband terminal and the broadband terminal.
Fig. 3 is a diagram of a broadband core network device network structure of a single call method for broadband and narrowband convergence according to an embodiment of the present invention, and as shown in fig. 3, the broadband core network device at least includes: a first receiving module 10 and a first transmitting module 11, wherein:
the first receiving module 10 is configured to detect, in real time, a speaking right application request sent by the narrowband core network device in a process of owning a speaking right of a data channel with the narrowband core network device; the first sending module 11 is configured to release the speaking right by the broadband core network device if it is detected that the speaking right application request sent by the narrowband core network device is received, and send a response message of agreeing to the application to the narrowband core network device. Specifically, the method comprises the following steps:
in the embodiment of the invention, the narrowband terminal has higher priority than the broadband terminal. In the process that the first sending module 11 owns the speaking right of the data channel between the narrowband core network device and the narrowband core network device, the first sending module 11 may send a wideband data packet to the narrowband core network device, and meanwhile, the first receiving module 10 may also detect whether a speaking right application request sent by the narrowband core network device is received in real time.
The narrowband terminal on the other side can completely ignore whether the current data channel is occupied or not and only send the speaking right application request to the first receiving module 10 according to the requirement of the narrowband terminal, and the first receiving module 10 can instruct the second sending module to forward the speaking right application request to the broadband terminal.
When receiving a speaking right application request sent by a narrowband core network device, if the first receiving module 10 happens to occupy a data channel, that is, has the speaking right, the speaking right is also immediately released, and the first sending module 11 immediately replies a response message of agreeing to the application, and the narrowband core network device forwards the response message of agreeing to the application to the narrowband terminal.
After receiving the response message of agreeing to the application, the narrowband terminal determines that the narrowband terminal has acquired the speaking right of the data channel, and at this time, the narrowband terminal becomes a pure sender and can send a narrowband data packet to the narrowband core network device. And the narrowband core network device sends the narrowband data packet to the first receiving module 10 and transfers the narrowband data packet to the second sending module. The second sending module can directly send the narrowband data packet to the broadband terminal regardless of the state of the broadband terminal due to the full duplex mode adopted by the broadband terminal.
In the time period when the narrowband terminal obtains the speaking right, although the wideband terminal can still send wideband data packets to the second receiving module, since the speaking right of the data channel between the wideband terminal and the narrowband core network device is not obtained at this time, the wideband data packets cannot be sent to the narrowband core network device, and therefore the wideband data packets are directly discarded by the second receiving module.
The apparatus provided in the embodiment of the present invention is configured to execute the method, and the functions of the apparatus refer to the method embodiment specifically, and detailed method flows thereof are not described herein again.
The embodiment of the invention ensures that the narrow-band terminal can initiate the speaking right application request and has the speaking right regardless of the state of the data channel by ensuring that the narrow-band terminal has higher priority in the process of realizing single calling with the wide-band terminal, thereby simply and conveniently realizing half-duplex single calling of the narrow-band terminal and the wide-band terminal.
Based on the foregoing embodiment, further, the broadband core network device further includes:
the first receiving module is further configured to receive a speaking right release request sent by the narrowband core network device, where the speaking right release request is used to indicate that the narrowband core network device needs to release the speaking right;
the first sending module is further used for sending a speaking right application request for applying the speaking right to the narrowband core network equipment after sending a response message of agreeing to release to the narrowband core network equipment.
When the narrowband terminal has finished sending the narrowband data packet and judges that no data channel is needed to be used, a speaking right release request is sent to the narrowband core network equipment, and then the narrowband core network equipment sends the speaking right release request to the first receiving module.
And the first receiving module replies a response message of agreeing to release to the narrowband core network equipment by the first sending module after receiving the speaking right release request. And the narrowband core network equipment sends the response message of agreeing to release to the narrowband terminal.
Meanwhile, in order to immediately occupy the released data communication head, the first sending module immediately sends a speaking right application request to the narrowband core network equipment, so that the speaking right can be obtained as soon as possible.
After receiving the speaking right application request sent by the first sending module, the narrowband core network equipment can immediately reply a response message of agreeing to the application to the first receiving module under the condition of no other competitors.
After receiving the response message of agreeing to the application, the first receiving module judges that the first receiving module has obtained the speaking right, and if the broadband terminal sends a broadband data packet to the second receiving module at the moment, the second sending module sends the received broadband data packet to the narrowband core network equipment. And the narrowband core network device sends the wideband data packet to the narrowband terminal. The narrowband terminal at this moment only becomes a receiver, and when the narrowband terminal is ready to send a narrowband data packet again, the narrowband terminal sends a speaking right application request to the narrowband core network equipment again, so that the narrowband terminal becomes a sender again.
It can be known from the above embodiment that the data channel is always in an occupied state, and when the narrowband terminal wants to send a narrowband data packet, the narrowband terminal is occupied by the narrowband terminal, and when the narrowband terminal releases the data channel, the narrowband terminal is immediately occupied by the first sending module.
The apparatus provided in the embodiment of the present invention is configured to execute the method, and the functions of the apparatus refer to the method embodiment specifically, and detailed method flows thereof are not described herein again.
In the embodiment of the invention, the first sending module immediately sends the speaking right application request to occupy the data communication head after the narrowband terminal initiates the speaking right release request at the narrowband terminal, so that the wideband terminal sends the wideband data packet to the narrowband terminal, thereby simply and conveniently realizing half-duplex single call between the narrowband terminal and the wideband terminal.
Based on the foregoing embodiment, further, the broadband core network device further includes:
the second receiving module is used for receiving an invitation message sent by the broadband terminal, wherein the invitation message at least comprises a called terminal identification;
and the second sending module is used for instantly sending a CALL PROCEEDING message to the broadband terminal and then forwarding the invitation message to the narrowband core network equipment if the called terminal identification is judged to correspond to the narrowband terminal.
The second receiving module receives an invitation message sent by the broadband terminal, wherein the invitation message at least comprises a called terminal identification.
The second receiving module can judge whether the called terminal corresponding to the called terminal identification is a broadband terminal or a narrowband terminal through the identification of the called terminal identification. And if the called terminal identification corresponds to the narrowband terminal, the second sending module immediately replies a confirmation message, namely a CALL notification message of the NAS interface standard, to the broadband terminal to conform to the signaling transmission standard sequence between the broadband trunking communication systems.
And after receiving the CALL PROCEEDING message, the broadband terminal starts to establish a special bearer with the broadband terminal. And meanwhile, the wide first sending module sends the invitation message to the narrowband core network equipment. And the narrowband core network equipment sends the invitation message to the narrowband terminal again according to the called terminal identification.
The narrowband core network device sends an invitation message to the narrowband terminal and also sends a receiving message to the first receiving module to indicate that the narrowband core network device is TRYING to contact the narrowband terminal, and the receiving message may be a 100TRYING message of SIP signaling.
And after receiving the invitation message, the narrowband terminal judges whether to agree with the invitation message according to the self condition. If the narrowband terminal agrees with the invitation, the narrowband terminal replies an answer message to the narrowband core network device, and then the narrowband core network device sends the answer message to the first receiving module, where the answer message may be a 200OK message of an SIP signaling, and then the second sending module sends the answer message to the broadband terminal, where the answer message at this time may be a CALL CONNECT message of an NAS interface signaling.
Then, the first sending module sends a success message to the narrowband core network device to open a half-duplex data channel with the narrowband core network device, and at the same time, the narrowband core network device also opens a half-duplex data channel with the narrowband terminal.
On the other hand, the broadband terminal may send a success message to the second receiving module to open the dedicated bearer, where the success message may be a CALL CONNECT ACK message of the NAS interface protocol. And the data channels from the broadband terminal to the narrowband terminal are opened.
The apparatus provided in the embodiment of the present invention is configured to execute the method, and the functions of the apparatus refer to the method embodiment specifically, and detailed method flows thereof are not described herein again.
The embodiment of the invention establishes the data channel between the broadband terminal and the narrowband terminal by initiating the invitation message by the broadband terminal, thereby simply and conveniently realizing half-duplex single call between the narrowband terminal and the broadband terminal.
Based on the foregoing embodiment, further, the broadband core network device further includes:
the first receiving module is further configured to receive an invitation message sent by the narrowband core network device, where the invitation message at least includes a calling terminal identifier;
the first sending module is further configured to send a receiving message to the narrowband core network device if it is determined that the calling terminal identifier corresponds to the narrowband terminal, so as to indicate that the invitation message is being prepared to be sent to the broadband terminal, and send the invitation message to the broadband terminal.
In the embodiment of the invention, a narrow band terminal initiates an invitation message with the wide band terminal, the narrow band terminal firstly sends the invitation message to narrow band core network equipment, and the invitation message at least comprises a calling terminal identification. And the narrowband core network equipment sends the invitation message to the first receiving module.
The first receiving module can identify the received calling terminal identification, and if the calling terminal identification is judged to correspond to the narrow-band terminal, the first receiving module can mark the call and send the invitation message to the wide-band terminal.
After receiving the invite message, the broadband terminal replies a confirmation message to the second receiving module, where the confirmation message may be a CALL configured message of the NAS interface protocol, to indicate that the invite message is received, and then may start to establish a dedicated bearer.
The broadband terminal then determines whether to accept the invitation sent by the narrowband terminal according to the self condition, if not, the broadband terminal sends a rejection message to the second receiving module, and the first sending module and the narrowband core network equipment send the rejection message to the narrowband terminal, so that the invitation fails; if the broadband terminal decides to accept the invitation, the broadband terminal sends an answering message to the second receiving module, and then the first sending module sends the answering message to the narrowband core network equipment and forwards the answering message to the narrowband terminal.
And the second receiving module can instruct the second sending module to send a success message to the broadband terminal after receiving the answering message, so as to open the special bearer, namely open a data channel with the broadband terminal.
And after receiving the answering message, the narrowband terminal sends a success message to the narrowband core network equipment so as to open a data channel between the narrowband core network equipment and the narrowband terminal. And the narrowband core network equipment sends the success message to the first receiving module to open a data channel between the narrowband core network equipment and the first receiving module. And the data channel from the narrow-band terminal to the broadband terminal is successfully established.
The apparatus provided in the embodiment of the present invention is configured to execute the method, and the functions of the apparatus refer to the method embodiment specifically, and detailed method flows thereof are not described herein again.
The embodiment of the invention establishes the data channel between the broadband terminal and the narrowband terminal by the narrowband terminal initiating the invitation message, thereby simply and conveniently realizing the half-duplex single call between the narrowband terminal and the broadband terminal.
Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. As shown in fig. 4, the electronic device includes: a processor (processor)601, a memory (memory)602, and a bus 603;
wherein, the processor 601 and the memory 602 complete the communication with each other through the bus 603;
the processor 601 is configured to call program instructions in the memory 602 to perform the methods provided by the above-mentioned method embodiments, for example, including: the method comprises the steps that a wideband core network device detects a speaking right application request sent by a narrowband core network device in real time in the process of possessing the speaking right of a data channel between the wideband core network device and the narrowband core network device; and if detecting that the speaking right application request sent by the narrowband core network equipment is received, the broadband core network equipment releases the speaking right and sends a response message of agreeing to the application to the narrowband core network equipment.
Further, embodiments of the present invention disclose a computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions, which when executed by a computer, the computer is capable of performing the methods provided by the above-mentioned method embodiments, for example, comprising: the method comprises the steps that a wideband core network device detects a speaking right application request sent by a narrowband core network device in real time in the process of possessing the speaking right of a data channel between the wideband core network device and the narrowband core network device; and if detecting that the speaking right application request sent by the narrowband core network equipment is received, the broadband core network equipment releases the speaking right and sends a response message of agreeing to the application to the narrowband core network equipment.
Further, an embodiment of the present invention provides a non-transitory computer-readable storage medium storing computer instructions, which cause the computer to perform the method provided by the above method embodiments, for example, including: the method comprises the steps that a wideband core network device detects a speaking right application request sent by a narrowband core network device in real time in the process of possessing the speaking right of a data channel between the wideband core network device and the narrowband core network device; and if detecting that the speaking right application request sent by the narrowband core network equipment is received, the broadband core network equipment releases the speaking right and sends a response message of agreeing to the application to the narrowband core network equipment.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
The above-described embodiments of the electronic device and the like are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may also be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A single call method for wide-band and narrow-band fusion is characterized by comprising the following steps:
the method comprises the steps that a wideband core network device detects a speaking right application request sent by a narrowband core network device in real time in the process of possessing the speaking right of a data channel between the wideband core network device and the narrowband core network device;
and if detecting that the speaking right application request sent by the narrowband core network equipment is received, the broadband core network equipment releases the speaking right and sends a response message of agreeing to the application to the narrowband core network equipment.
2. The method of claim 1, further comprising:
if the wideband core network equipment detects and receives the speaking right release request sent by the narrowband core network equipment;
and the broadband core network equipment sends the speaking right application request to the narrowband core network equipment after sending a response message of agreeing to release to the narrowband core network equipment.
3. The method of claim 1, further comprising:
the broadband core network equipment receives an invitation message sent by the broadband terminal, wherein the invitation message at least comprises a called terminal identification;
and if the broadband core network equipment judges that the called terminal identification corresponds to the narrowband terminal, the broadband core network equipment immediately sends a CALL PROCEEDING message to the broadband terminal, and then forwards the invitation message to the narrowband core network equipment.
4. The method of claim 1, further comprising:
the broadband core network equipment receives an invitation message sent by the narrowband core network equipment, wherein the invitation message at least comprises a calling terminal identification;
if the broadband core network device judges that the calling terminal identification corresponds to the narrowband terminal, sending a receiving message to the narrowband core network device to indicate that the invitation message is ready to be sent to the broadband terminal, and sending the invitation message to the broadband terminal.
5. A broadband core network device for a single call method for broadband and narrowband convergence is characterized by comprising:
the first receiving module is used for detecting the speaking right application request sent by the narrow-band core network equipment in real time in the process of possessing the speaking right of a data channel between the first receiving module and the narrow-band core network equipment;
the first sending module is used for releasing the speaking right by the broadband core network device and sending a response message of agreeing to the application to the narrowband core network device if detecting that the speaking right application request sent by the narrowband core network device is received.
6. The broadband core network device of claim 5, wherein the broadband core network device further comprises:
the first receiving module is further configured to detect and receive a speaking right release request sent by the narrowband core network device;
the first sending module is further configured to send the speaking right application request to the narrowband core network device immediately after sending a response message agreeing to release to the narrowband core network device.
7. The broadband core network device of claim 5, wherein the broadband core network device further comprises:
a second receiving module, configured to receive an invitation message sent by the broadband terminal, where the invitation message at least includes a called terminal identifier;
and a second sending module, configured to send a CALL notification message to the broadband terminal immediately if it is determined that the called terminal identifier corresponds to the narrowband terminal, and then forward the invitation message to the narrowband core network device.
8. The broadband core network device of claim 5, wherein the broadband core network device further comprises:
the first receiving module is further configured to receive an invitation message sent by the narrowband core network device, where the invitation message at least includes a calling terminal identifier;
the first sending module is further configured to send a receiving message to the narrowband core network device if it is determined that the calling terminal identifier corresponds to the narrowband terminal, so as to indicate that the invitation message is ready to be sent to the broadband terminal, and send the invitation message to the broadband terminal at the same time.
9. An electronic device, comprising a memory and a processor, wherein the processor and the memory communicate with each other via a bus; the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 1 to 4.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1 to 4.
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| CN113271555A (en) * | 2020-02-14 | 2021-08-17 | 普天信息技术有限公司 | Method for mutually sending short messages between PDT terminal and B-Trunc terminal |
| CN113630732B (en) * | 2020-05-07 | 2022-07-22 | 海能达通信股份有限公司 | Converged communication method, terminal, system and storage medium |
| CN113766656A (en) * | 2020-06-04 | 2021-12-07 | 普天信息技术有限公司 | Broadband and narrowband calling method and device and electronic equipment |
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