CN111918417B - Voice call connection method and device - Google Patents
Voice call connection method and device Download PDFInfo
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- CN111918417B CN111918417B CN201910390057.XA CN201910390057A CN111918417B CN 111918417 B CN111918417 B CN 111918417B CN 201910390057 A CN201910390057 A CN 201910390057A CN 111918417 B CN111918417 B CN 111918417B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/19—Connection re-establishment
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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
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
Abstract
The embodiment of the invention provides a method and a device for continuing a voice call, wherein the method comprises the following steps: in the process of carrying out voice call between two user terminals of a base station, when the base station determines that the data transmission with a core network is interrupted, searching a data transmission channel of IMS voice data of an IP multimedia subsystem corresponding to the voice call, wherein the data transmission channel is pre-established according to data wireless bearing channels between the two user terminals and the base station respectively; forwarding the IMS voice data through the data transmission channel; and then when the data transmission between the base station and the core network is interrupted, the base station can forward the IMS voice data, thereby ensuring that two user terminals in conversation continue to converse and realizing the continuation of the voice conversation of the two user terminals.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for continuing a voice call.
Background
With the continuous development of the LTE (Long Term Evolution ) technology, the Voice over Long-Term Evolution (Voice over Long-Term Evolution, Long Term Evolution) technology that provides IP (Internet Protocol Address) Voice services based on packet domains is also applied in large scale; compared with 2G (the 2th Generation mobile communication technology, second Generation mobile communication technology) and 3G (the 3th Generation mobile communication technology, third Generation mobile communication technology), the waiting time for the VoLTE user to connect the voice call is shorter, the quality is higher, and the voice is more natural.
When two VoLTE users are in a call, when an S1 link between a base station and an EPC (Evolved Packet Core) is disconnected, a cell may enter a fault state, and at this time, if a signal of a cell of an adjacent base station is available, the user may switch to the cell of the adjacent base station to continue the call; however, if the signal of the cell of the adjacent base station is poor or there is no adjacent cell, the uplink and downlink radio links of the user are dropped due to out-of-step.
Disclosure of Invention
The embodiment of the invention provides a method for continuing voice communication, which is used for continuing the voice communication of two user terminals when the data transmission between a base station and a core network is interrupted.
Correspondingly, the embodiment of the invention also provides a voice call connection device, which is used for ensuring the realization and the application of the method.
In order to solve the above problems, the present invention discloses a method for connecting a voice call, comprising: in the process of carrying out voice call between two user terminals of a base station, when the base station determines that the data transmission with a core network is interrupted, searching a data transmission channel of IMS voice data of an IP multimedia subsystem corresponding to the voice call, wherein the data transmission channel is pre-established according to data wireless bearing channels between the two user terminals and the base station respectively; and forwarding the IMS voice data through the data transmission channel.
Optionally, the searching for the data transmission channel of the IMS voice data of the IP multimedia subsystem corresponding to the voice call includes: searching a mapping relation based on the wireless channel identifier corresponding to the user terminal, and determining a data transmission channel corresponding to IMS voice data corresponding to the voice call; wherein the mapping relationship comprises a relationship between the radio channel resource identifier and the data transmission channel.
Optionally, the two ue include a calling ue and a called ue, and the finding a mapping relationship based on the radio channel identifier corresponding to the ue includes: searching a mapping relation based on the calling wireless channel identifier corresponding to the calling user terminal; and/or searching a mapping relation based on the called wireless channel identifier corresponding to the called user terminal.
Optionally, the two user terminals include a calling user terminal and a called user terminal, and the forwarding the IMS voice data through the data transmission channel includes: if the IMS voice data is the IMS calling voice data corresponding to the calling user terminal, forwarding the IMS calling voice data to the called user terminal through the data transmission channel; and if the IMS voice data are the IMS called voice data corresponding to the called user terminal, forwarding the IMS called voice data to the calling user terminal through the data transmission channel.
Optionally, the method further includes the step of pre-establishing the data transmission channel: when a calling user terminal initiates a call request, acquiring a terminal identifier of a called user terminal corresponding to the call request; judging whether a pre-stored terminal identification matched with the terminal identification of the called user terminal exists in a database, wherein the pre-stored terminal identification is stored when the user terminal is accessed into the base station; if yes, the calling data wireless bearing channel and the called data wireless bearing channel are connected in a butt joint mode, and the data transmission channel is established; the calling data radio bearer channel comprises a data radio bearer channel between the calling user terminal and the base station, and the called data radio bearer channel comprises a data radio bearer channel between the called user terminal and the base station.
Optionally, the method further includes the step of establishing a mapping relationship in advance: establishing a mapping relation between the calling wireless channel identification and a data transmission channel; and/or establishing a mapping relation between the called wireless channel identification and a data transmission channel.
The embodiment of the invention also discloses a continuing device for voice communication, which comprises: a channel searching module, configured to search, when the base station determines that data transmission with a core network is interrupted during a voice call between two user terminals of the base station, a data transmission channel for voice data of an IP multimedia subsystem IMS corresponding to the voice call, where the data transmission channel is pre-established according to data radio bearer channels between the two user terminals and the base station, respectively; and the data forwarding module is used for forwarding the IMS voice data through the data transmission channel.
Optionally, the channel searching module is configured to search for a mapping relationship based on a wireless channel identifier corresponding to the user terminal, and determine a data transmission channel corresponding to IMS voice data corresponding to the voice call; wherein the mapping relationship comprises a relationship between the radio channel resource identifier and the data transmission channel.
Optionally, the two ue include a calling ue and a called ue, and the channel searching module includes: a first relation searching submodule, configured to search a mapping relation based on a calling wireless channel identifier corresponding to the calling user terminal; and the second relation searching submodule is used for searching the mapping relation based on the called wireless channel identifier corresponding to the called user terminal.
Optionally, the two user terminals include a calling user terminal and a called user terminal, and the data forwarding module includes: a first voice data forwarding sub-module, configured to forward the IMS calling voice data to the called user terminal through the data transmission channel if the IMS voice data is the IMS calling voice data corresponding to the calling user terminal; and the second voice data forwarding submodule is used for forwarding the IMS called voice data to the calling user terminal through the data transmission channel if the IMS voice data is the IMS called voice data corresponding to the called user terminal.
Optionally, the apparatus further comprises: the channel establishing module is used for acquiring a terminal identifier of a called user terminal corresponding to a calling request when the calling user terminal initiates the calling request; judging whether a pre-stored terminal identification matched with the terminal identification of the called user terminal exists in a database or not, wherein the pre-stored terminal identification is stored when the user terminal is accessed to the base station; if yes, the calling data wireless bearing channel and the called data wireless bearing channel are connected in a butt joint mode, and the data transmission channel is established; the calling data radio bearer channel comprises a data radio bearer channel between the calling user terminal and the base station, and the called data radio bearer channel comprises a data radio bearer channel between the called user terminal and the base station.
Optionally, the apparatus further comprises: the relation establishment module is used for establishing a mapping relation between the calling wireless channel identifier and the data transmission channel; and/or establishing a mapping relation between the called wireless channel identification and a data transmission channel.
Compared with the prior art, the embodiment of the invention has the following advantages:
in the embodiment of the invention, in the process of carrying out voice call between two user terminals of a base station, when the base station determines that the data transmission with a core network is interrupted, a data transmission channel of IMS voice data of an IP multimedia subsystem corresponding to the voice call is searched, wherein the data transmission channel is pre-established according to data wireless bearing channels between the two user terminals and the base station respectively; forwarding the IMS voice data through the data transmission channel; and then when the data transmission between the base station and the core network is interrupted, the base station can forward the IMS voice data, thereby ensuring that two user terminals in conversation continue to converse and realizing the continuation of the voice conversation of the two user terminals.
Drawings
FIG. 1 is a flowchart illustrating steps of a method for continuing a voice call according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating steps of a method for establishing a data transmission channel in a base station according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating steps of an alternative embodiment of a method for continuing a voice call;
FIG. 4 is a block diagram of a connection device for voice call according to an embodiment of the present invention;
fig. 5 is a block diagram of an alternative embodiment of a connection device for voice call according to the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
After the two user terminals establish a voice call, a calling channel between the user terminal (which may be called a calling user terminal in the following) sending a call request and an IMS (IP Multimedia Subsystem) server and a called channel between the user terminals (which may be called a called user terminal in the following) calling corresponding to the call request are both established, so as to obtain a data transmission channel corresponding to the IMS voice data commonly used by the voice call; wherein, include at least two nodes on the said calling channel: the calling base station and the core network corresponding to the active user terminal, the called channel comprises at least two nodes: a called base station and a core network corresponding to the called user terminal; of course, when the calling user terminal and the called user terminal belong to the same base station, the calling base station and the called base station are the same base station. Then, the IMS server may forward IMS voice data corresponding to the voice call through the common data transmission channel, for example, the calling user terminal may send IMS calling voice data to the IMS server through the calling channel, the IMS server forwards the IMS calling voice data to the called user terminal through the called channel, and the called user terminal may send IMS called voice data to the IMS server through the called channel, and the IMS server forwards the IMS called voice data to the calling user terminal through the calling channel.
When the EPC fails or the S1 link between the EPC and the base station is disconnected, the above-mentioned commonly used data transmission on-off is also disconnected, and the IMS voice data corresponding to the voice call cannot be forwarded through the IMS server, thereby causing the voice calls of the two user terminals to be interrupted. Therefore, in order to solve the above problems, an embodiment of the present invention provides a method for continuing a voice call, and one of the core concepts is that, in a process of performing a voice call between two user terminals of a base station, when the base station determines that data transmission with a core network is interrupted, the base station may transmit voice data through data radio bearer channels between the two user terminals and the base station; and further ensuring that the two user terminals can continue to talk, and realizing the connection of the voice call of the two user terminals.
The method for continuing the voice call provided by the embodiment of the invention can ensure that two user terminals which belong to the same base station and are carrying out the voice call continue when the data transmission between the base station and a core network is interrupted; wherein, the two ues may belong to the same cell of the base station or belong to different cells of the base station, which is not limited in the embodiments of the present invention; in addition, the user terminal may be a VoLTE user terminal, and the voice calls corresponding to the two user terminals may be VoLTE voice calls, which is not limited in this embodiment of the present invention.
Referring to fig. 1, a flowchart illustrating steps of an embodiment of a method for connecting a voice call according to the present invention is shown, which may specifically include the following steps:
step 101, in the process of voice communication between two user terminals of a base station, when the base station determines that data transmission with a core network is interrupted, searching a data transmission channel of IMS voice data of an IP multimedia subsystem corresponding to the voice communication, wherein the data transmission channel comprises data wireless bearing channels between the two user terminals and the base station respectively.
And step 102, forwarding the IMS voice data through the data transmission channel.
In the embodiment of the invention, when the base station determines any two user terminals accessed to the base station to carry out voice communication in advance, the base station can respectively determine the data wireless bearing channels between the two user terminals and the base station; then, the two user terminals are respectively butted with the data radio bearer channel between the base stations, and a standby data transmission channel is established.
The standby data transmission channel may be used when the common data transmission channel cannot perform data transmission, that is, in the process of performing voice call between the two user terminals, if the data transmission between the base station and the core network is normal, that is, the common data transmission channel may perform data transmission, and at this time, the IMS server may continue to forward the IMS voice data corresponding to the voice call by using the common data transmission channel. If the data transmission between the base station and the core network is interrupted, that is, the common data transmission channel cannot transmit data, the base station may start the standby data transmission channel, and forward the IMS voice data through the standby data transmission channel.
The base station can search a standby data transmission channel for transmitting IMS voice data corresponding to the voice call of the user terminal when determining that the data transmission with the core network is interrupted; the base station may then forward the IMS voice data through the spare data transmission channel, for example, forward the IMS voice data corresponding to one ue to another ue. Therefore, in the process of voice passing of the two user terminals of the base station, even if the data transmission between the base station and the core network is interrupted, the base station can also transmit the IMS voice data, thereby ensuring that the two user terminals in conversation continue to converse.
In summary, in the embodiment of the present invention, in the process of performing a voice call between two user terminals of a base station, when the base station determines that data transmission with a core network is interrupted, a data transmission channel of IMS voice data of an IP multimedia subsystem corresponding to the voice call is searched, where the data transmission channel is pre-established according to data radio bearer channels between the two user terminals and the base station, respectively; forwarding the IMS voice data through the data transmission channel; and then when the data transmission between the base station and the core network is interrupted, the base station can forward the IMS voice data, thereby ensuring that two user terminals in conversation continue to converse and realizing the continuation of the voice conversation of the two user terminals.
For the convenience of reading by those skilled in the art, the data transmission channels mentioned below are all referred to as spare data transmission channels.
In the embodiment of the invention, a pair of user terminals which are carrying out voice communication can comprise a calling user terminal and a called user terminal, and a base station can establish a data transmission channel between the calling user terminal and the corresponding called user terminal when the calling user terminal initiates a call request; and then when the two user terminals are in the process of voice communication and the corresponding common data transmission channel can not transmit data, the base station can adopt the corresponding data transmission channel to forward data, so as to realize the connection of the voice communication. The step of establishing the data transmission channel may be implemented by referring to steps 201 to 203:
referring to fig. 2, a flowchart illustrating steps of an embodiment of a method for establishing a data transmission channel according to the present invention is shown, which specifically includes the following steps:
In the embodiment of the invention, when each user terminal is accessed to the base station, the base station can obtain the terminal identification corresponding to the user terminal, and the terminal identification is taken as the pre-stored terminal identification and recorded in the database; the base station may analyze the user identifier of the ue by using network packet analysis software (e.g., wireshark). The terminal identifier may include a Mobile Directory Number (MDN) corresponding to the user terminal, where the MDN is a personal Mobile phone Number of a CDMA (Code Division Multiple Access) network user and is also a phone Number externally disclosed by the Mobile user.
When any user terminal needs to perform a voice call with another user terminal, a call request may be initiated to a corresponding base station, where the call request may include: the terminal identifier corresponding to the user terminal sending the call request (i.e. the calling user terminal) and the terminal identifier corresponding to the called user terminal (i.e. the called user terminal). After receiving the call request initiated by the user terminal, the base station may obtain a terminal identifier corresponding to the called user terminal from the call request, and determine whether the called user terminal is the user terminal of the base station corresponding to the calling user terminal according to the terminal identifier corresponding to the called user terminal, that is, determine whether the called user terminal and the calling user terminal belong to the same base station.
In the embodiment of the invention, the base station can match the terminal identification corresponding to the called user terminal with the prestored terminal identification recorded in the database by the base station to judge whether the prestored terminal identification matched with the terminal identification of the called user terminal exists in the database; if the database has a pre-stored terminal identifier matching with the terminal identifier of the called user terminal, which indicates that the called user terminal and the calling user terminal belong to the same base station, step 203 may be executed. If the database does not have a pre-stored terminal identifier matched with the terminal identifier of the called user terminal, which indicates that the called user terminal and the calling user terminal belong to different base stations, the process can be ended.
Step 203, butting a calling data wireless bearer channel and a called data wireless bearer channel to establish the data transmission channel; the calling data radio bearer channel comprises a data radio bearer channel between the calling user terminal and the base station, and the called data radio bearer channel comprises a data radio bearer channel between the called user terminal and the base station.
In the embodiment of the invention, when the called user terminal and the calling user terminal belong to the same base station, a data wireless bearer channel (which can be called as a calling data wireless bearer channel) between the calling user terminal and the base station and a data wireless bearer channel (which can be called as a called data wireless bearer channel) between the called user terminal and the base station can be determined; then, the on-off of the calling data wireless bearing channel and the called data wireless bearing are butted, for example, the interface of the calling data wireless bearing channel and the interface of the called data wireless bearing channel are mapped, and then a data transmission channel is established.
In the embodiment of the invention, the same base station may have a plurality of pairs of user terminals to carry out voice call at the same time, and the corresponding data transmission channels for transmitting IMS voice data in the voice call of each pair of user terminals are different; therefore, each data transmission channel can be distinguished, so that the subsequent base station can conveniently forward IMS voice data by adopting the corresponding data transmission channel for each pair of user terminals which are in conversation. In an example of the present invention, a mapping relationship between a wireless channel identifier and a data transmission channel may be established, wherein the mapping relationship between the calling wireless channel identifier and the data transmission channel may be established, and/or the mapping relationship between the called wireless channel identifier and the data transmission channel may be established; the calling wireless channel identifier may refer to an identifier of a wireless channel corresponding to a calling user terminal, and the called wireless channel identifier may refer to an identifier of a wireless channel corresponding to a called user terminal. The mapping relationship can be searched subsequently, and a corresponding data transmission channel is determined.
In an optional embodiment of the present invention, after the user terminal switches out the base station, the base station may delete the terminal identifier corresponding to the user terminal from the database, so as to ensure that the user terminals corresponding to the preset terminal identifier recorded in the database are all the user terminals in the base station; and memory space can also be saved.
How the base station forwards the IMS voice data corresponding to the voice call will be described in detail below.
Referring to fig. 3, a flowchart illustrating steps of an alternative embodiment of a method for continuing a voice call according to the present invention is shown, which specifically includes the following steps:
step 301, in a process of performing a voice call between two user terminals of a base station, when the base station determines that data transmission with a core network is interrupted, searching a mapping relationship based on a wireless channel identifier corresponding to the user terminal, and determining a data transmission channel corresponding to IMS voice data corresponding to the voice call.
In the embodiment of the invention, in the process of voice call between two user terminals (a calling user terminal and a called user terminal) of a base station, when the data transmission between the base station and a core network is interrupted, in order to ensure that the voice call between the two user terminals is continued, the base station can forward IMS voice data corresponding to the voice call so as to continue the voice call.
In the embodiment of the invention, a base station establishes a data transmission channel corresponding to the voice call and a mapping relation between the data transmission channel and a wireless channel identifier in advance; therefore, the base station can search the mapping relation according to the wireless channel identifiers corresponding to the two user terminals, and determine the data transmission channel of the IMS voice data corresponding to the voice call between the two user terminals.
In an example of the present invention, if a mapping relationship between a calling radio channel identifier and a data transmission channel is pre-established, the mapping relationship may be searched based on the calling radio channel identifier corresponding to the calling user terminal, and a corresponding data transmission channel may be determined.
In another example of the present invention, if a mapping relationship between the called wireless channel identifier and the data transmission channel is pre-established, the mapping relationship may be searched based on the called wireless channel identifier corresponding to the called user terminal, and the corresponding data transmission channel may be determined.
Of course, if the mapping relationship between the calling wireless channel identifier and the data transmission channel and the mapping relationship between the called wireless channel identifier and the data transmission channel are established in advance; the mapping relationship may be looked up based on at least one of the calling wireless channel identifier and the called wireless channel identifier to determine the corresponding data transmission channel.
After the base station determines a data transmission channel of the IMS voice data corresponding to the voice call between the two user terminals, the corresponding IMS voice data can be forwarded by adopting the data transmission channel; the IMS voice data may include IMS calling voice data and IMS called voice data, and specifically, refer to steps 302 to 303:
In the embodiment of the invention, after the calling user terminal collects the IMS calling voice data of the calling user, the IMS calling voice data can be uploaded to the base station through the calling data wireless bearing channel in the data transmission channel; after receiving the IMS calling voice data, the base station may forward the IMS calling voice data to the called user terminal through a called data radio bearer channel in the data transmission channel. After receiving the IMS calling voice data, the called user terminal may parse the IMS calling voice data and then play the data, so that the called user corresponding to the called user terminal may hear the voice of the calling user.
Step 303, if the IMS voice data is IMS called voice data corresponding to the called user terminal, forwarding the IMS called voice data to the calling user terminal through the data transmission channel.
In the embodiment of the invention, after the called user terminal collects the IMS called voice data of the called user, the IMS called voice data can be uploaded to the base station through the called data wireless bearing channel in the data transmission channel; after receiving the IMS called voice data, the base station can forward the IMS called voice data to the calling user terminal through a calling data wireless bearer channel in the data transmission channel. After receiving the IMS called voice data, the calling user terminal may parse the IMS called voice data and then play the data, so that the calling user corresponding to the calling user terminal may hear the voice of the called user.
In summary, in the embodiment of the present invention, in the process of performing a voice call between two user terminals of a base station, when the base station determines that data transmission with a core network is interrupted, a data transmission channel of IMS voice data of an IP multimedia subsystem corresponding to the voice call is searched, where the data transmission channel is pre-established according to data radio bearer channels between the two user terminals and the base station, respectively; the IMS voice data are forwarded through the data transmission channel; and then when the data transmission between the base station and the core network is interrupted, the base station can forward the IMS voice data, so that two user terminals in conversation can be ensured to continue the conversation, and the user experience is improved.
Further, in the embodiment of the present invention, the base station establishes in advance a data transmission channel between the calling user terminal and the called user terminal, and establishes a mapping relationship between the wireless channel identifier and the data transmission channel; when the data transmission between the base station and the core network is interrupted, the mapping relation can be searched according to the wireless channel identifier corresponding to the user terminal, the corresponding data transmission channel can be quickly determined, and the connection efficiency of voice communication is improved.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those of skill in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the embodiments of the invention.
Referring to fig. 4, a block diagram of a structure of an embodiment of a connection device for voice call in the present invention is shown, which may specifically include the following modules:
a channel searching module 401, configured to search, when a base station determines that data transmission with a core network is interrupted during a voice call between two user terminals of the base station, a data transmission channel of IMS voice data of an IP multimedia subsystem corresponding to the voice call, where the data transmission channel is pre-established according to data radio bearer channels between the two user terminals and the base station, respectively;
a data forwarding module 402, configured to forward the IMS voice data through the data transmission channel.
Referring to fig. 5, a block diagram of an alternative embodiment of a connection device for voice call according to the present invention is shown.
In an optional embodiment of the present invention, the channel searching module 401 is configured to search a mapping relationship based on a wireless channel identifier corresponding to the user terminal, and determine a data transmission channel corresponding to IMS voice data corresponding to the voice call; wherein the mapping relationship comprises a relationship between the radio channel resource identifier and the data transmission channel.
In an optional embodiment of the present invention, the two ue include a calling ue and a called ue, and the channel searching module 401 includes:
a first relation searching submodule 4011, configured to search a mapping relation based on a calling wireless channel identifier corresponding to the calling user terminal;
and a second relation searching sub-module 4012, configured to search a mapping relation based on the called wireless channel identifier corresponding to the called user terminal.
In an optional embodiment of the present invention, the two ue include a calling ue and a called ue, and the data forwarding module 402 includes:
a first voice data forwarding sub-module 4021, configured to forward the IMS calling voice data to the called user terminal through the data transmission channel if the IMS voice data is the IMS calling voice data corresponding to the calling user terminal;
a second voice data forwarding sub-module 4022, configured to forward the IMS called voice data to the calling user terminal through the data transmission channel if the IMS voice data is IMS called voice data corresponding to the called user terminal.
In an optional embodiment of the present invention, the channel establishing module 403 is configured to, when a calling user terminal initiates a call request, obtain a terminal identifier of a called user terminal corresponding to the call request; judging whether a pre-stored terminal identification matched with the terminal identification of the called user terminal exists in a database or not, wherein the pre-stored terminal identification is stored when the user terminal is accessed to the base station; if yes, the calling data wireless bearing channel and the called data wireless bearing channel are connected in a butt joint mode, and the data transmission channel is established; the calling data radio bearer channel comprises a data radio bearer channel between the calling user terminal and the base station, and the called data radio bearer channel comprises a data radio bearer channel between the called user terminal and the base station.
In an optional embodiment of the present invention, the relationship establishing module 404 is configured to establish a mapping relationship between the calling radio channel identifier and a data transmission channel; and/or establishing a mapping relation between the called wireless channel identification and a data transmission channel.
In summary, in the embodiment of the present invention, in the process of performing a voice call between two user terminals of a base station, when the base station determines that data transmission with a core network is interrupted, a data transmission channel of IP multimedia subsystem IMS voice data corresponding to the voice call is searched, where the data transmission channel is pre-established according to data radio bearer channels between the two user terminals and the base station, respectively; forwarding the IMS voice data through the data transmission channel; and then when the data transmission between the base station and the core network is interrupted, the base station can forward the IMS voice data, thereby ensuring that two user terminals in conversation continue to converse and realizing the continuation of the voice conversation of the two user terminals.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The foregoing describes in detail a method and an apparatus for connecting a voice call provided by the present invention, and specific examples are applied herein to explain the principles and embodiments of the present invention, and the description of the foregoing examples is only used to help understanding the method and its core ideas of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A method for continuing a voice call, comprising:
in the process of voice communication between two user terminals of a base station, when a common data transmission channel for forwarding IMS voice data by an IP Multimedia Subsystem (IMS) server cannot transmit data, searching a mapping relation based on a wireless channel identifier corresponding to the user terminal, and determining a standby data transmission channel corresponding to the IMS voice data corresponding to the voice communication; the mapping relation comprises a relation between a wireless channel resource identifier and a data transmission channel, and the standby data transmission channel is pre-established according to data wireless bearing channels between two user terminals and the base station respectively;
and forwarding the IMS voice data through the standby data transmission channel.
2. The method of claim 1, wherein the two user terminals comprise a calling user terminal and a called user terminal,
the searching for the mapping relationship based on the wireless channel identifier corresponding to the user terminal includes:
searching a mapping relation based on the calling wireless channel identifier corresponding to the calling user terminal;
and/or the presence of a gas in the gas,
and searching a mapping relation based on the called wireless channel identifier corresponding to the called user terminal.
3. The method of claim 1, wherein the two user terminals comprise a calling user terminal and a called user terminal,
the forwarding the IMS voice data through the spare data transmission channel includes:
if the IMS voice data is the IMS calling voice data corresponding to the calling user terminal, forwarding the IMS calling voice data to the called user terminal through the standby data transmission channel;
and if the IMS voice data are the IMS called voice data corresponding to the called user terminal, forwarding the IMS called voice data to the calling user terminal through the standby data transmission channel.
4. The method of claim 2, further comprising the step of pre-establishing the alternate data transmission channel by:
when a calling user terminal initiates a call request, acquiring a terminal identifier of a called user terminal corresponding to the call request;
judging whether a pre-stored terminal identification matched with the terminal identification of the called user terminal exists in a database, wherein the pre-stored terminal identification is stored when the user terminal is accessed into the base station;
if yes, the calling data wireless bearing channel and the called data wireless bearing channel are butted, and the standby data transmission channel is established;
the calling data radio bearer channel comprises a data radio bearer channel between the calling user terminal and the base station, and the called data radio bearer channel comprises a data radio bearer channel between the called user terminal and the base station.
5. The method of claim 4, further comprising the step of pre-establishing a mapping relationship:
establishing a mapping relation between the calling wireless channel identification and a data transmission channel;
and/or the presence of a gas in the gas,
and establishing a mapping relation between the called wireless channel identification and a data transmission channel.
6. A device for connecting a voice call, comprising:
a channel searching module, configured to search a mapping relationship based on a wireless channel identifier corresponding to a user terminal when a common data transmission channel for an IP multimedia subsystem IMS server to forward IMS voice data cannot perform data transmission in a process of performing a voice call between two user terminals of a base station, and determine a standby data transmission channel corresponding to IMS voice data corresponding to the voice call; the mapping relation comprises a relation between a wireless channel resource identifier and a data transmission channel, and the standby data transmission channel is pre-established according to data wireless bearing channels between two user terminals and the base station respectively;
and the data forwarding module is used for forwarding the IMS voice data through the standby data transmission channel.
7. The apparatus of claim 6, wherein the two ues comprise a calling ue and a called ue, and wherein the channel searching module comprises:
the first relation searching submodule is used for searching a mapping relation based on the calling wireless channel identifier corresponding to the calling user terminal;
and the second relation searching submodule is used for searching the mapping relation based on the called wireless channel identifier corresponding to the called user terminal.
8. The apparatus of claim 6, wherein the two ues comprise a calling ue and a called ue, and wherein the data forwarding module comprises:
a first voice data forwarding sub-module, configured to forward the IMS calling voice data to the called user terminal through the standby data transmission channel if the IMS voice data is the IMS calling voice data corresponding to the calling user terminal;
and the second voice data forwarding submodule is used for forwarding the IMS called voice data to the calling user terminal through the standby data transmission channel if the IMS voice data is the IMS called voice data corresponding to the called user terminal.
9. The apparatus of claim 7, further comprising:
the channel establishing module is used for acquiring a terminal identifier of a called user terminal corresponding to a calling request when the calling user terminal initiates the calling request; judging whether a pre-stored terminal identification matched with the terminal identification of the called user terminal exists in a database or not, wherein the pre-stored terminal identification is stored when the user terminal is accessed to the base station; if yes, the calling data wireless bearing channel and the called data wireless bearing channel are butted, and the standby data transmission channel is established; the calling data radio bearer channel comprises a data radio bearer channel between the calling user terminal and the base station, and the called data radio bearer channel comprises a data radio bearer channel between the called user terminal and the base station.
10. The apparatus of claim 9, further comprising:
the relation establishment module is used for establishing a mapping relation between the calling wireless channel identifier and the data transmission channel; and/or establishing a mapping relation between the called wireless channel identification and a data transmission channel.
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