CN117295184A - Service processing method and related equipment - Google Patents
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- CN117295184A CN117295184A CN202210692774.XA CN202210692774A CN117295184A CN 117295184 A CN117295184 A CN 117295184A CN 202210692774 A CN202210692774 A CN 202210692774A CN 117295184 A CN117295184 A CN 117295184A
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- 238000003672 processing method Methods 0.000 title abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 41
- 238000004891 communication Methods 0.000 claims abstract description 18
- 238000012545 processing Methods 0.000 claims description 16
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000011664 signaling Effects 0.000 description 12
- 230000008569 process Effects 0.000 description 8
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- 238000010586 diagram Methods 0.000 description 7
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
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Abstract
The present invention relates to the field of communications technologies, and in particular, to a service processing method and related devices. Wherein the method is applied to the network device and comprises the following steps: receiving a first service request sent by a calling terminal, wherein the first service request is used for establishing a media session with a called terminal, and the first service request contains identification information of the called terminal; forwarding the first service request to the called terminal according to the identification information of the called terminal; after receiving a media session negotiation message sent by a called terminal, determining that the called terminal falls back from a first network to a second network and/or determining that the called terminal completes media session dedicated establishment, forwarding the media session negotiation message to the calling terminal so that the calling terminal and the called terminal establish a media session according to the media session negotiation message, thereby avoiding flow conflict and ensuring normal conversation between the calling terminal and the called terminal.
Description
[ field of technology ]
The present invention relates to the field of communications technologies, and in particular, to a service processing method and related devices.
[ background Art ]
Voice call is one of the basic functions of a mobile terminal. In the current mobile network, the voice call function can be performed whether a 2G, 3G, 4G or 5G network is used. However, in the fifth generation of mobile communication system independent network architecture, since the New air interface (NR) of 5G does not support the voice technology of the IP multimedia subsystem (IP multimedia subsystem, IMS), the mobile terminal needs to fall back to the long term evolution (Long Term Evolution, LTE) network, that is, an EPS Fallback scheme is adopted to perform IMS voice call. The EPS Fallback procedure may collide with the IMS session initiation protocol (Session initialization Protocol, SIP) signaling flow, so that the terminal cannot send an important SIP message in the Fallback procedure, and the main call is called to have a silent phenomenon. In the prior art, several solutions have been proposed. One of the solutions is that the network side executes the EPS Fallback procedure first, and then executes the SIP signaling interaction procedure. The other way is that the network side firstly executes the SIP signaling interaction flow and then executes the EPS fallback. However, in both methods, the overall protocol is greatly changed due to the need to add a field on the network side to indicate the EPS Fallback procedure. Moreover, the network side sends cancel and 503Service Unavailable, which causes an increase in signaling overhead and is prone to new compatibility problems. Meanwhile, the process of triggering the EPS Fallback by the network at the same time is not practical, and in the practical situation, the EPS Fallback process of the calling terminal is earlier than that of the called terminal, and the network side triggers the EPS Fallback process at the same time, so that the call establishment time delay is greatly increased.
[ invention ]
In order to solve the above problems, the embodiments of the present invention provide a service method and related devices, which reduce the problem of call silence caused by flow collision on the premise of not increasing delay as much as possible, not increasing signaling overhead and compatibility risk.
In a first aspect, an embodiment of the present invention provides a service processing method, where the method is applied to a network device, and includes:
receiving a first service request sent by a calling terminal, wherein the first service request is used for establishing a media session with a called terminal, and the first service request contains identification information of the called terminal;
forwarding the first service request to the called terminal according to the identification information of the called terminal;
after receiving a media session negotiation message sent by a called terminal, determining that the called terminal falls back from a first network to a second network and/or determining that the called terminal completes media session dedicated establishment, forwarding the media session negotiation message to the calling terminal so that the calling terminal and the called terminal establish a media session according to the media session negotiation message.
In the embodiment of the invention, after the network equipment determines that the called terminal falls back from the first network to the second network and/or determines that the called terminal completes the establishment of the special carrier of the media session, the network equipment forwards the media session negotiation message to the calling terminal, thereby avoiding signaling conflict caused by that the calling terminal or the called terminal does not complete the network fall back yet.
In one possible implementation, determining that the called terminal falls back from the first network to the second network includes:
and when the first terminal position information reported by the called terminal is received, determining that the called terminal falls back from the first network to the second network.
In one possible implementation manner, determining that the called terminal completes the establishment of the dedicated media session includes:
after determining that the called terminal falls back from the first network to the second network, when receiving the second terminal position information reported by the called terminal, determining that the called terminal completes the establishment of the media session dedicated carrier.
In one possible implementation manner, after forwarding the first service request to the called terminal according to the identification information of the called terminal, the method further includes:
and sending first indication information to the called terminal, wherein the first indication information is used for indicating the called terminal to fall back from a first network to a second network and/or establishing media session special load.
In one possible implementation manner, after receiving the first service request sent by the calling terminal, the method further includes:
and sending second indication information to the calling terminal, wherein the second indication information is used for indicating the calling terminal to fall back from the first network to the second network and/or establishing a media session special carrier.
In a second aspect, an embodiment of the present invention provides a network device, including:
the communication module is used for receiving a first service request sent by a calling terminal, wherein the first service request is used for establishing a media session with a called terminal, and the first service request contains identification information of the called terminal;
the communication module is further configured to forward the first service request to the called terminal according to the identification information of the called terminal;
the communication module is further configured to, after receiving a media session negotiation message sent by a called terminal, determine that the called terminal falls back from a first network to a second network and/or determine that the called terminal completes establishment of a dedicated media session, forward the media session negotiation message to the calling terminal, so that the calling terminal and the called terminal establish a media session according to the media session negotiation message.
In a possible implementation manner, the network device further includes a processing module, where the processing module is specifically configured to:
and when the first terminal position information reported by the called terminal is received, determining that the called terminal falls back from the first network to the second network.
In a third aspect, an embodiment of the present invention provides a service processing system, including:
calling terminal, called terminal and network device according to the second aspect.
In a fourth aspect, an embodiment of the present invention provides an electronic device, including:
at least one processor; and
at least one memory communicatively coupled to the processor, wherein:
the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the methods of the first to second aspects.
In a fifth aspect, embodiments of the present invention provide a computer-readable storage medium storing computer instructions that cause a computer to perform the methods of the first to second aspects.
It should be understood that the second to fifth aspects of the embodiments of the present invention are consistent with the technical solutions of the first aspect of the embodiments of the present invention, and the beneficial effects obtained by each aspect and the corresponding possible implementation manner are similar, and are not repeated.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a service processing system according to an embodiment of the present invention;
fig. 2 is a flowchart of a service processing method according to an embodiment of the present invention;
fig. 3 is a flowchart of another service processing method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a network device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another network device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
[ detailed description ] of the invention
For a better understanding of the technical solutions of the present specification, the following detailed description of the embodiments of the present invention refers to the accompanying drawings.
It should be understood that the described embodiments are only some, but not all, of the embodiments of the present description. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are intended to be within the scope of the present invention based on the embodiments herein.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the description. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
In the embodiment of the invention, after the network equipment determines that the called terminal falls back from the first network to the second network and/or determines that the called terminal completes the establishment of the media session private load, the network equipment sends the first indication information to the calling terminal, so that the establishment of the media session between the calling terminal and the called terminal is not completed, and the call silence caused by signaling conflict is avoided.
Fig. 1 is a schematic structural diagram of a service processing system according to an embodiment of the present invention, where, as shown in fig. 1, the service processing system includes a calling terminal 101, a called terminal 102, and a network device 103.
As shown in fig. 1, in the current call flow, the calling terminal 101 sends an INVITE request to the network device 103, and the network device 103 forwards the INVITE request to the called terminal 102, while the calling terminal 101 listens to the radio indication of the network device 103 for EPS Fallback and dedicated establishment. After the called terminal 102 processes the caller INVITE request, a 183Session Progress signaling is sent to the network time device, and the called terminal 102 receives the B1 event sent by the network device 103 at the same time, so as to prepare for fallback. The network device 103 transmits the 183Session Progress signaling sent by the called terminal 102 to the calling terminal 101, and the calling terminal 101 sends UPDATE signaling for confirming the media resource reservation condition of the called terminal 102. When the called terminal 102 receives the UPDATE, a situation occurs in which the fallback to the LTE network has not been completed, and the network remains on the independent network (SA). At this time, the called terminal 102 has no reservation of media resources, so the QoS status of the 200OK for UPDATE currently replied to the network device 103 is "a=curr: qoS local none". However, when the called terminal 102 sends the 200OK for UPDATE, the network device 103 sends mobility FromNRCommand signaling to the called terminal 102 after completing the report upload of the B1 event, and releases the (New Radio Data Radio Bearer data radio bearer, NR DRB) of the called terminal 102, resulting in insufficient UL Grant of the called terminal 102, and failure of all the 200OK for UPDATE to be sent successfully. After the called terminal 102 falls back to the LTE radio side, a dedicated carrier is established, and the called terminal 102 sends 180Ring to the network device 103. When the network device 103 receives 180Ring, it does not transmit the UPDATE to the calling terminal 101 temporarily, and retransmits the UPDATE which has not received the reply before, and when the called receives the retransmitted UPDATE message, the called needs to retransmit the 200OK reply of the previous UPDATE according to RFC3261 protocol, because the called terminal 102 receives the UPDATE with the same sequence number again. In this scenario, the QoS state in 200OK of the called terminal 102 reply for the retransmission UPDATE is still "a=curr: qoS local none". The order seen from the calling terminal 101 side is that the 200OK for UPDATE is received first, then 180Ring is received, and the phone can be normally connected. However, the slave network device understands the reserved condition of the calling and called media resources, and still considers that the called terminal 102 has no special load, so the downstream RTP packet is closed, thereby leading to silence of the call.
In order to solve the above problems, the embodiments of the present invention provide a service processing method applied to a network device, which reduces the probability of silence of a call caused by a flow collision on the premise of not increasing the delay, signaling overhead and compatibility risk as much as possible. As shown in fig. 2, the method includes:
step 201, receiving a first service request sent by a calling terminal, where the first service request is used to establish a media session with a called terminal, and the first service request includes identification information of the called terminal.
And 202, forwarding a first service request to the called terminal according to the identification information of the called terminal. After receiving the first service request, the called terminal may send a reply message to the calling terminal through the network device, where the reply message is used to make the device and the calling terminal know that the called terminal has received the first service request. And then, the calling terminal executes a flow of falling back from the first network to the second network. After the called terminal prepares to establish the media session according to the first service request, the procedure of dropping from the first network to the second network is also executed.
Step 203, after receiving the media session negotiation message sent by the called terminal, determining that the called terminal falls back from the first network to the second network and/or determining that the called terminal completes the establishment of the dedicated media session, forwarding the media session negotiation message to the calling terminal, so that the calling terminal and the called terminal establish the media session according to the media session negotiation message. Wherein, because the calling terminal performs the network fallback from the first network to the second network earlier than the called terminal, the calling terminal basically completes the network fallback after the called terminal completes the network fallback. Thus, it can be determined that both the calling terminal and the called terminal have completed the reservation of the media resources.
In some embodiments, after the called terminal falls back from the first network to the second network, a reply message may be fed back to the network device, so that the network device knows. In a specific example, when the network device receives the first terminal location information reported by the called terminal, it is determined that the called terminal falls back from the first network to the second network. Wherein the first terminal location information may be implemented as terminal location information (Re-Authorization Response, RAR).
In some embodiments, after completing the establishment of the dedicated media session, the called terminal may feed back a reply message to the network device, so that the network device knows. Specifically, after determining that the called terminal falls back from the first network to the second network, the network device determines that the called terminal completes establishment of the media session dedicated carrier when receiving the second terminal position information reported by the called terminal. Wherein the second terminal location information may be implemented as a RAR message.
In some embodiments, after the network device forwards the first service request to the called terminal, the network device may further send first indication information to the called terminal, where the first indication information is used to indicate that the called terminal falls back from the first network to the second network and/or establish a media session private carrier.
In some embodiments, after receiving the first service request sent by the calling terminal, the network device may further send second indication information to the calling terminal, where the second indication information is used to instruct the calling terminal to fall back from the first network to the second network and/or establish a media session private carrier.
In a specific example, the first network is a 5G network, and the second network is a 4G network, and the flow of establishing a media session between the calling terminal and the called terminal is as shown in fig. 3:
firstly, a calling terminal sends a SIP INVUTE request to a core network element which is accessed currently, and the SIP INVUTE request is used for establishing a media session with a called terminal. After receiving the SIP INVUTE request, the core network element sends the SIP INVUTE request to the called terminal through the core network element accessed by the called terminal, and replies 100Trying information to the calling terminal, which indicates that the core network element has received the SIP INVUTE request sent by the calling terminal. And after the called terminal processes the SIP INVUTE request, sending a 183Session Progress message to the core network element to prompt the establishment of the Progress information of the media Session. And then, the core network element respectively transmits B1 events to the calling terminal and the called terminal. The B1 event refers to a measurement report output when the reference signal received power (Reference Signal Receiving Power, RSRP) of the neighboring cell is higher than an absolute threshold, and the measurement report is used for triggering the calling terminal and the called terminal to transit from the 5G network to the 4G network.
And the calling terminal and the called terminal respectively carry out the steps of network fallback, DRB configuration, special activation and the like according to the B1 event. And the core network element firstly maintains the 183Session Progress message sent by the called terminal after receiving the 183Session Progress message, and then sends the 183Session Progress message to the calling terminal after the called terminal reports the RAR. The calling terminal receives the 183Session Progress message, so as to know the establishment Progress of the media Session. And then, the calling terminal replies a temporary response PRACK message to the core network element, wherein the temporary response PRACK message indicates that the 183Session Progress message is received. The core network element sends the PRACK message to the called terminal, which knows that the calling terminal has accepted the 183Session Progress message. And then, the called terminal sends a 200OK for PRACK message to the calling terminal through the core network element, wherein the 183Session Progress message is successfully processed. And then the calling terminal sends an UPDATE message to the called terminal through the core network element for negotiating related SDP information with the called terminal. The called terminal sends a 200OK for UPDATE message to the calling terminal through the core network element so that the calling terminal knows that the UPDATE message processing is successful. And then, the called terminal rings and sends 180Ring ringing information to the calling terminal through the core network element, thereby completing the establishment of the media session between the calling user and the called user.
The service processing method provided by the embodiment of the invention is optimized on the basis of 3GPP and RFC related standard protocol flows, has small change to the network side, is not needed to be changed at the terminal side, is easy to realize, and is beneficial to the deployment and popularization of the existing network.
In response to the above-mentioned service processing method, an embodiment of the present invention provides a network device, as shown in fig. 4, where the network device 103 includes a communication module 401.
The communication module 401 is configured to receive a first service request sent by a calling terminal, where the first service request is used to establish a media session with a called terminal, and the first service request includes identification information of the called terminal.
The communication module 401 is further configured to forward the first service request to the called terminal according to the identification information of the called terminal.
The communication module 401 is further configured to, after receiving a media session negotiation message sent by the called terminal, determine that the called terminal falls back from the first network to the second network and/or determine that the called terminal completes establishment of a dedicated media session, forward the media session negotiation message to the calling terminal, so that the calling terminal and the called terminal establish a media session according to the media session negotiation message.
The network device provided by the embodiment shown in fig. 4 may be used to implement the technical solutions of the method embodiments shown in fig. 1 to 3 in the present specification, and the implementation principles and technical effects may be further referred to in the related descriptions of the method embodiments.
Fig. 5 is a schematic structural diagram of another network device according to an embodiment of the present invention, where, as shown in fig. 5, the network device further includes a processing module 402. The processing module 402 is specifically configured to:
and when the first terminal position information reported by the called terminal is received, determining that the called terminal falls back from the first network to the second network.
The network device provided by the embodiment shown in fig. 5 may be used to implement the technical solutions of the method embodiments shown in fig. 1 to 3 in the present specification, and the implementation principles and technical effects may be further referred to in the related descriptions of the method embodiments.
Fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention, as shown in fig. 6, where the electronic device may include at least one processor and at least one memory communicatively connected to the processor, where: the memory stores program instructions executable by the processor, which can be invoked by the processor to perform the service processing methods provided in the embodiments shown in fig. 1-3 of the present specification.
As shown in fig. 6, the electronic device is in the form of a general purpose computing device. Components of an electronic device may include, but are not limited to: one or more processors 610, a communication interface 620, and a memory 630, a communication bus 640 that connects the different system components (including the memory 630, the communication interface 620, and the processor 610).
Communication bus 640 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, or a local bus using any of a variety of bus architectures. By way of example, and not limitation, such architectures include industry Standard architecture (Industry Standard Architecture; hereinafter ISA) bus, micro channel architecture (Micro Channel Architecture; hereinafter MAC) bus, enhanced ISA bus, video electronics standards Association (Video Electronics Standards Association; hereinafter VESA) local bus, and peripheral component interconnect (Peripheral Component Interconnection; hereinafter PCI) bus.
Electronic devices typically include a variety of computer system readable media. Such media can be any available media that can be accessed by the electronic device and includes both volatile and nonvolatile media, removable and non-removable media.
Memory 630 may include computer system readable media in the form of volatile memory such as random access memory (Random Access Memory; hereinafter: RAM) and/or cache memory. The electronic device may further include other removable/non-removable, volatile/nonvolatile computer system storage media. Memory 630 may include at least one program product having a set (e.g., at least one) of program modules configured to carry out the functions of the embodiments of the present description.
A program/utility having a set (at least one) of program modules may be stored in the memory 630, such program modules include, but are not limited to, an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment. Program modules typically carry out the functions and/or methods of the embodiments described herein.
The processor 610 executes various functional applications and data processing by running programs stored in the memory 630, for example, implementing the service processing method provided in the embodiment shown in fig. 1 to 3 of the present specification.
Embodiments of the present disclosure provide a computer readable storage medium storing computer instructions that cause a computer to execute the service processing method provided by the embodiments shown in fig. 1 to 3 of the present disclosure.
Any combination of one or more computer readable media may be utilized as the above-described computer readable storage media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory; EPROM) or flash Memory, an optical fiber, a portable compact disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The foregoing describes specific embodiments of the present disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present specification. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present specification, the meaning of "plurality" means at least two, for example, two, three, etc., unless explicitly defined otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present specification in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present specification.
Depending on the context, the word "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to detection". Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.
It should be noted that the devices according to the embodiments of the present disclosure may include, but are not limited to, a personal Computer (Personal Computer; hereinafter referred to as a PC), a personal digital assistant (Personal Digital Assistant; hereinafter referred to as a PDA), a wireless handheld device, a Tablet Computer (Tablet Computer), a mobile phone, an MP3 display, an MP4 display, and the like.
In the several embodiments provided in this specification, it should be understood that the disclosed systems, apparatuses, and methods may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the elements is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
In addition, each functional unit in each embodiment of the present specification may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.
The integrated units implemented in the form of software functional units described above may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium, and includes several instructions for causing a computer device (which may be a personal computer, a connector, or a network device, etc.) or a Processor (Processor) to perform part of the steps of the methods described in the embodiments of the present specification. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (hereinafter referred to as ROM), a random access Memory (Random Access Memory) and various media capable of storing program codes such as a magnetic disk or an optical disk.
The foregoing description of the preferred embodiments is provided for the purpose of illustration only, and is not intended to limit the scope of the disclosure, since any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the disclosure are intended to be included within the scope of the disclosure.
Claims (10)
1. A method for processing services, the method being applied to a network device and comprising:
receiving a first service request sent by a calling terminal, wherein the first service request is used for establishing a media session with a called terminal, and the first service request contains identification information of the called terminal;
forwarding the first service request to the called terminal according to the identification information of the called terminal;
after receiving a media session negotiation message sent by a called terminal, determining that the called terminal falls back from a first network to a second network and/or determining that the called terminal completes media session dedicated establishment, forwarding the media session negotiation message to the calling terminal so that the calling terminal and the called terminal establish a media session according to the media session negotiation message.
2. The method of claim 1, wherein determining that the called terminal falls back from the first network to the second network comprises:
and when the first terminal position information reported by the called terminal is received, determining that the called terminal falls back from the first network to the second network.
3. The method of claim 2, wherein determining that the called terminal completes media session subscription establishment comprises:
after determining that the called terminal falls back from the first network to the second network, when receiving the second terminal position information reported by the called terminal, determining that the called terminal completes the establishment of the media session dedicated carrier.
4. The method according to claim 1, wherein after forwarding the first service request to the called terminal according to the identification information of the called terminal, the method further comprises:
and sending first indication information to the called terminal, wherein the first indication information is used for indicating the called terminal to fall back from a first network to a second network and/or establishing media session special load.
5. The method of claim 1, wherein after receiving the first service request sent by the calling terminal, the method further comprises:
and sending second indication information to the calling terminal, wherein the second indication information is used for indicating the calling terminal to fall back from the first network to the second network and/or establishing a media session special carrier.
6. A network device, comprising:
the communication module is used for receiving a first service request sent by a calling terminal, wherein the first service request is used for establishing a media session with a called terminal, and the first service request contains identification information of the called terminal;
the communication module is further configured to forward the first service request to the called terminal according to the identification information of the called terminal;
the communication module is further configured to, after receiving a media session negotiation message sent by a called terminal, determine that the called terminal falls back from a first network to a second network and/or determine that the called terminal completes establishment of a dedicated media session, forward the media session negotiation message to the calling terminal, so that the calling terminal and the called terminal establish a media session according to the media session negotiation message.
7. The network device of claim 6, further comprising a processing module, the processing module being specifically configured to:
and when the first terminal position information reported by the called terminal is received, determining that the called terminal falls back from the first network to the second network.
8. A business processing system, comprising:
calling terminal, called terminal and network device according to any of claims 6 to 7.
9. An electronic device, comprising:
at least one processor; and
at least one memory communicatively coupled to the processor, wherein:
the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 1-5.
10. A computer readable storage medium storing computer instructions for causing a computer to perform the method of any one of claims 1 to 5.
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| CN117580183A (en) * | 2024-01-16 | 2024-02-20 | 荣耀终端有限公司 | Network priority negotiation method and related equipment |
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| CN117580183A (en) * | 2024-01-16 | 2024-02-20 | 荣耀终端有限公司 | Network priority negotiation method and related equipment |
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