CN108347405B - Method, device, terminal and network side equipment for realizing multi-party call - Google Patents
Method, device, terminal and network side equipment for realizing multi-party call Download PDFInfo
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- CN108347405B CN108347405B CN201710054020.0A CN201710054020A CN108347405B CN 108347405 B CN108347405 B CN 108347405B CN 201710054020 A CN201710054020 A CN 201710054020A CN 108347405 B CN108347405 B CN 108347405B
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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
- H04L65/40—Support for services or applications
- H04L65/403—Arrangements for multi-party communication, e.g. for conferences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/16—Communication-related supplementary services, e.g. call-transfer or call-hold
Abstract
The invention provides a method, a device, a terminal and network side equipment for realizing multi-party call. The method comprises the following steps: after a new call is established or a call is hung up, generating a call change indication message, wherein the call change indication message is used for indicating the network side equipment to update the maintained data forwarding list; and sending the call change indication message to network side equipment so that the network side equipment updates the maintained data forwarding list according to the call change indication message and organizes and forwards data according to the updated data forwarding list. The invention can copy the data to be transmitted to each participant terminal through the network, thereby saving wireless resources.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, a terminal, and a network device for implementing a multi-party call.
Background
With the continuous increase of the bandwidth of the mobile network and the continuous increase of the uploading and downloading rates, the mobile terminal call is mainly based on data to perform various traditional related services, such as voice and video calls.
When a plurality of mobile terminals perform a multi-way call, a mobile terminal as an organizer needs to forward voice/video data to other plurality of mobile terminals as participants. The existing scheme is that each participant mobile terminal sends data to an organizer mobile terminal, the organizer mobile terminal combines the received data into a data according to a certain rule, copies the combined data for each participant mobile terminal, and sends an independent data packet through air interface resources. In practice, the voice/video data portion is identical for each participant mobile terminal except for some differences with respect to the IP related portion. In the existing scheme, a data packet needs to be copied and sent for each participant mobile terminal, which can multiply the uplink data amount and cause excessive occupation of wireless resources.
Disclosure of Invention
The method, the device, the terminal and the network side equipment for realizing the multi-party call can copy the data to be forwarded through the network and send the data to each participant terminal, thereby saving wireless resources.
In a first aspect, the present invention provides a method for implementing a multi-party call, which is applied to an organizer terminal, and the method includes:
after a new call is established or a call is hung up, generating a call change indication message, wherein the call change indication message is used for indicating the network side equipment to update the maintained data forwarding list;
and sending the call change indication message to network side equipment so that the network side equipment updates the maintained data forwarding list according to the call change indication message and organizes and forwards data according to the updated data forwarding list.
Optionally, the call change indication message includes an IP source address of the organizer terminal, a source port, an identifier of an add or delete action, an number of add or delete actions, and destination information of the added or deleted participant terminals.
Optionally, the destination information includes an IP address, a port, and a DRB, an RB, and an LCID corresponding to the data to be transmitted.
Optionally, the call change indication message includes an IP source address, a source port, and a flush action identifier of the organizer terminal.
In a second aspect, the present invention provides a method for implementing a multi-party call, which is applied to a network device, and the method includes:
receiving a call change indication message sent by an organizer terminal, wherein the call change indication message is used for indicating to update a maintained data forwarding list;
updating a data forwarding list maintained by the mobile terminal according to the call change indication message;
and organizing and forwarding the data packet sent by the organizer terminal according to the updated data forwarding list.
Optionally, when the call change instruction message includes an IP source address, a source port, an increase action identifier, an increase number, and destination information of an increased participant terminal of the organizer terminal, the updating the data forwarding list maintained by the call change instruction message according to the call change instruction message includes: and adding data forwarding items in a data forwarding list corresponding to the IP source address and the source port of the organizer terminal, wherein the number of the added data forwarding items is equal to the added number, and the information of the added data forwarding items is the destination information of the added participant terminal.
Optionally, when the call change instruction message includes an IP source address, a source port, a deletion action identifier, a deletion number, and destination information of a deleted participant terminal of the organizer terminal, the updating the data forwarding list maintained by the call change instruction message according to the call change instruction message includes: deleting data forwarding entries in a data forwarding list corresponding to the IP source address and the source port of the organizer terminal, wherein the number of the deleted data forwarding entries is equal to the deletion number, and the deleted data forwarding entries are data forwarding entries having the destination information of the deleted participant terminal.
Optionally, the destination information includes an IP address, a port, and a DRB, an RB, and an LCID corresponding to the data to be transmitted.
Optionally, the organizing and forwarding the data packet sent by the organizer terminal according to the updated data forwarding list includes:
copying a data packet sent by the organizer terminal aiming at each data forwarding item in the updated data forwarding list;
modifying the destination address of the data packet obtained by copying into the IP address of the data forwarding item, and modifying the destination port of the data packet obtained by copying into the port of the data forwarding item;
searching network link identifiers corresponding to the DRB, RB and LCID of the data forwarding item;
and sending the modified data packet to the participant terminal through the network link corresponding to the network link identifier.
Optionally, when the call change instruction message includes an IP source address, a source port, and a clearing action identifier of the organizer terminal, the updating the data forwarding list maintained by the call change instruction message according to the call change instruction message includes: and clearing the data forwarding list corresponding to the IP source address and the source port of the organizer terminal.
In a third aspect, the present invention provides an apparatus for implementing a multi-party call, where the apparatus is located at an organizer terminal, and the apparatus includes:
the generating unit is used for generating a call change indication message after a new call or a hang-up call is established, wherein the call change indication message is used for indicating the network side equipment to update the maintained data forwarding list;
and the sending unit is used for sending the call change indication message generated by the generating unit to the network side equipment so that the network side equipment updates the maintained data forwarding list according to the call change indication message and organizes and forwards data according to the updated data forwarding list.
Optionally, the call change indication message includes an IP source address of the organizer terminal, a source port, an identifier of an add or delete action, an number of add or delete actions, and destination information of the added or deleted participant terminals.
Optionally, the destination information includes an IP address, a port, and a DRB, an RB, and an LCID corresponding to the data to be transmitted.
Optionally, the call change indication message includes an IP source address, a source port, and a flush action identifier of the organizer terminal.
In a fourth aspect, the present invention provides an apparatus for implementing a multi-party call, where the apparatus is located in a network side device, and the apparatus includes:
a receiving unit, configured to receive a call change indication message sent by an organizer terminal, where the call change indication message is used to indicate that a maintained data forwarding list is updated;
the updating unit is used for updating the data forwarding list maintained by the updating unit according to the call change indication message;
and the processing unit is used for organizing and forwarding the data packet sent by the organizer terminal according to the data forwarding list updated by the updating unit.
Optionally, when the call change instruction message includes an IP source address of the organizer terminal, a source port, an addition action identifier, an addition number, and destination information of an added participant terminal, the updating unit is configured to add a data forwarding entry in a data forwarding list corresponding to the IP source address and the source port of the organizer terminal, where the number of the added data forwarding entry is equal to the addition number, and information of the added data forwarding entry is the destination information of the added participant terminal.
Optionally, when the call change instruction message includes the IP source address of the organizer terminal, the source port, the deletion action identifier, the deletion number, and the destination information of the deleted participant terminal, the updating unit is configured to delete a data forwarding entry in a data forwarding list corresponding to the IP source address and the source port of the organizer terminal, where the deleted data forwarding entry is a data forwarding entry having the destination information of the deleted participant terminal, and the number of the deleted data forwarding entries is equal to the deletion number.
Optionally, the destination information includes an IP address, a port, and a DRB, an RB, and an LCID corresponding to the data to be transmitted.
Optionally, the processing unit comprises:
the replication module is used for replicating the data packet sent by the organizer terminal aiming at each data forwarding item in the data forwarding list updated by the updating unit;
a modification module, configured to modify a destination address of the packet obtained by copying by the copying module into an IP address of the data forwarding item, and modify a destination port of the packet obtained by copying into a port of the data forwarding item;
the searching module is used for searching the network link identifiers corresponding to the DRB, the RB and the LCID of the data forwarding item;
and the sending module is used for sending the data packet modified by the modifying module to the participant terminal through the network link corresponding to the network link identifier.
Optionally, when the call change instruction message includes an IP source address, a source port, and a clearing action identifier of the organizer terminal, the updating unit is configured to clear a data forwarding list corresponding to the IP source address and the source port of the organizer terminal.
In a fifth aspect, the present invention provides a terminal, where the terminal includes the above apparatus for implementing a multi-party call at an organizer terminal.
In a sixth aspect, the present invention provides a network side device, where the network side device includes the above apparatus for implementing a multi-party call located in the network side device.
The method, the device, the terminal and the network side equipment for realizing the multi-party call provided by the embodiment of the invention update the maintained data forwarding list by the network side equipment by generating the call change indication message, so that the network side equipment organizes and forwards data according to the updated data forwarding list. Compared with the prior art, the invention can copy the data to be forwarded through the network and send the data to each participant terminal, thereby saving wireless resources.
Drawings
FIG. 1 is a flowchart illustrating a method for implementing a multi-party call according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method for implementing a multi-party call according to another embodiment of the present invention;
FIG. 3 is a diagram illustrating a conventional PDCP PDU format;
FIG. 4 is a flowchart illustrating an embodiment of a method for implementing a multi-party call;
FIG. 5 is a flowchart illustrating an embodiment of a method for implementing a multi-party call;
FIG. 6 is a flowchart illustrating an embodiment of a method for implementing a multi-party call;
FIG. 7 is a flowchart illustrating an embodiment of a method for implementing a multi-party call;
FIG. 8 is a schematic structural diagram of an apparatus for implementing a multi-party call according to an embodiment of the present invention;
FIG. 9 is a schematic structural diagram of an apparatus for implementing a multi-party call according to another embodiment of the present invention;
fig. 10 is a schematic structural diagram of a processing unit of an apparatus for implementing a multi-party call 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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a method for realizing multi-party call, which is applied to an organizer terminal, and as shown in figure 1, the method comprises the following steps:
s11, after a new call or a hang-up call, generating a call change indication message, wherein the call change indication message is used for indicating the network side equipment to update the maintained data forwarding list;
and S12, sending the call change instruction message to the network side equipment, so that the network side equipment updates the maintained data forwarding list according to the call change instruction message, and organizes and forwards data according to the updated data forwarding list.
The invention provides a method for realizing multi-party call, which is applied to network side equipment, and as shown in figure 2, the method comprises the following steps:
s21, receiving a call change indication message sent by an organizer terminal, wherein the call change indication message is used for indicating the update of the maintained data forwarding list;
s22, updating the data forwarding list maintained by the user according to the call change indication message;
and S23, organizing and forwarding the data packet sent by the organizer terminal according to the updated data forwarding list.
The call change indication message may be implemented by adding a PDU Type (Protocol Data Unit Type).
The current PDCP PDU format is shown in fig. 3, wherein the PDCP PDU indicates whether it is a data PDU or a control PDU through the D/C field, and if it is a control PDU, it distinguishes which Type of control PDU according to the PDU Type, and then performs data parsing according to the Type of PDU.
The D/C field is defined as shown in the following table:
| | Description | |
| 0 | |
|
| 1 | Data PDU |
PDU Type is defined as follows:
| Bit | Description |
| 000 | PDCP status report |
| 001 | Interspersed ROHC feedback packet |
| 010 | LWA status report |
| 011-111 | Reserved |
the method for realizing the multi-party call needs to add a PDU Type, can be realized by modifying the definition of a PDCP Control PDU Type (Packet Data Convergence Protocol Control PDU Type), and modifies the definition of the PDCP Control PDU Type to make the PDU Type as shown in the following table:
| Bit | Description |
| 000 | PDCP status report |
| 001 | Interspersed ROHC feedback packet |
| 010 | LWA status report |
| 011 | Aggregation Data |
| 100-111 | Reserved |
wherein, the newly added 011 bits in the table are newly defined Aggregation Data type and represent a control PDU for indicating Data Aggregation information.
The description of the packet format of the newly added Aggregation Data is shown in the following table:
the definition content is as follows:
source IP: IP source address in IP message.
Source Port: source port in IP message.
And (4) Action: for indicating the function to be performed by the control PDU, the function definition includes:
0: and (4) emptying. The Source address of the unorganized/forwarded IP message is Source IP, the Source Port is a packet of Source Port, in this case, the Number of Destination Information and Destination Information fields are not included in the Aggregation Data.
1: and (4) increasing. Adding Destination Information member in the existing organization/forwarding list.
2: and (5) deleting. The Destination Information member is deleted in the existing organization/forwarding list.
Number of Destination Information: indicating how many destination information is.
Destination Information: and destination information description, which is used for describing destination information that the Source address of the IP message is Source IP and the Source Port is forwarding/non-forwarding of the data packet of the Source Port.
The description of the Destination Information format is shown in the following table:
| cell | Description of the invention |
| Destination IP | The IP destination address in the IP message can be IPV4 or IPV6 address |
| Destination Port | Destination port |
| DRB | Data Radio Bearer carrying user plane data |
| RB | Radio Bearer |
| LCID | Logical Channel ID |
The definition content is as follows:
destination IP: the IP destination address in the IP packet, i.e. the destination IP address of the organized/forwarded IP packet.
Destination Port: the destination port in the IP packet is the destination port of the organized/forwarded IP packet.
DRB: a DRB (Data RB, Data bearer between the terminal and the base station) corresponding to the IP packet that needs to be organized/forwarded.
RB: the RB (Resource Bearer, Bearer between the terminal and the base station) corresponding to the IP packet that needs to be organized/forwarded.
LCID: the LCID (Logical Channel identity) corresponding to the IP packet that needs to be organized/forwarded.
The following describes a method for implementing a multi-party call according to the present invention with specific examples.
As shown in fig. 4, when a new call is connected, the specific flow of the organizer mobile terminal implementing the multi-party call provided by the present invention is as follows:
step one, an organizer mobile terminal sets the identification of the PDCP Control PDU to be 011.
Step two, the organizer mobile terminal sets an Aggregation Data information field, and the setting content is as follows:
source IP: the IP source address of the mobile terminal;
source Port: a source port of the mobile terminal;
and (4) Action: setting to 1, indicating that the forwarding list information is added;
number of Destination Information: set to 1, indicating that a set of information follows.
The contents of the Destination Information are set as follows:
destination IP: the IP address of the mobile terminal that has just been switched on;
destination Port: a port used by the mobile terminal that has just been switched on;
DRB: a DRB number corresponding to the mobile terminal that has just been switched on;
RB: the RB number corresponding to the mobile terminal that has just been switched on;
LCID: the LCID number corresponding to the mobile terminal that has just been switched on.
And step three, the organizer mobile terminal sends the organized PDCP Control PDU to the network.
As shown in fig. 5, when a call is disconnected, the specific implementation flow of the organizer mobile terminal is as follows:
step one, an organizer mobile terminal sets the identification of the PDCP Control PDU to be 011.
And step two, the organizer mobile terminal judges whether the call to be hung up is the last call in the current call, if the call to be hung up is the last call in the current call, the step four is switched, otherwise, the step three is switched.
Step three, the organizer mobile terminal sets the Aggregation Data information domain as follows:
source IP: the IP source address of the mobile terminal;
source Port: a source port of the mobile terminal;
and (4) Action: setting to be 2, indicating that the forwarding list information is deleted;
number of Destination Information: set to 1, indicating that a set of information follows.
The Destination Information is set as follows:
destination IP: the IP address of the mobile terminal that has just been switched on;
destination Port: a port used by the mobile terminal that has just been switched on;
DRB: a DRB number corresponding to the mobile terminal that has just been switched on;
RB: the RB number corresponding to the mobile terminal that has just been switched on;
LCID: the LCID number corresponding to the mobile terminal that has just been switched on.
Step four, the organizer mobile terminal sets the Aggregation Data information domain as follows:
source IP: the IP source address of the mobile terminal;
source Port: a source port of the mobile terminal;
and (4) Action: set to 0, indicates that all forwarding lists with Source IP as the Source IP address and Source Port as the Source Port are deleted.
And step five, the organizer mobile terminal sends the organized PDCP Control PDU to the network.
As shown in fig. 6, for the method for implementing a multi-party call provided by the present invention, the specific implementation flow of the network side device processing PDCP Control PDU is as follows:
step one, a network receives a PDCP Control PDU of 011 type.
And step two, if the Action in the PDU is 0, deleting the forwarding list taking the Source IP and the Source Port in the PDU as keywords, and otherwise, turning to step three.
And step three, if the Action in the PDU is 1, turning to step four, otherwise, turning to step five.
Adding Number of Destination Information group Information in a forwarding list taking a Source IP and a Source Port in the PDU as keywords, wherein the data of each group of Information is set as follows;
the Destination address of data forwarding is equal to Destination IP in Destination Information;
the Destination Port of data forwarding is equal to the Destination Port in the Destination Information;
the DRB number corresponding to the forwarding data is equal to the DRB in the Destination Information;
the RB number corresponding to the forwarding data is equal to the RB in the Destination Information;
the LCID number corresponding to the forwarding data is equal to the LCID in the Destination Information.
And step five, if the Action in the PDU is 2, turning to step six, and otherwise, turning to step seven.
Step six, deleting Number of Destination Information group Information in a forwarding list taking a Source IP and a Source Port in the PDU as keywords, wherein the data of each group of Information must meet the following conditions;
the Destination address of data forwarding is equal to Destination IP in Destination Information;
the Destination Port of data forwarding is equal to the Destination Port in the Destination Information;
the DRB number corresponding to the forwarding data is equal to the DRB in the Destination Information;
the RB number corresponding to the forwarding data is equal to the RB in the Destination Information;
the LCID number corresponding to the forwarding data is equal to the LCID in the Destination Information.
And step seven, discarding the PDCP Control PDU.
As shown in fig. 7, for the method for implementing a multi-party call provided by the present invention, the specific implementation flow of organizing and forwarding data packets by the network side device is as follows:
step one, a network receives an IP data packet A of which the IP Source address is Source IP and the Source Port is Source Port;
and step two, judging whether forwarding list items b1 and b2. with Source IP and Source Port as keywords exist in the forwarding list, if so, turning to step three, otherwise, turning to end.
And thirdly, copying the data packet A to obtain B1 and B2 … Bn.
Step four, modifying the following data items in B1 and B2 … Bn respectively to meet the requirements;
the Destination address is equal to Destination IP of the forwarding list item;
the Destination Port is equal to the Destination Port of the forwarding list entry.
Step five, recalculating CheckSum in the messages of B1 and B2 … Bn.
And step six, searching a corresponding link according to the DRB, the RB and the LCID of the forwarding list item, and sending out B1 and B2 … Bn.
And step seven, sending the data packet A out.
The method for realizing the multi-party call provided by the embodiment of the invention enables the network side equipment to update the maintained data forwarding list by generating the call change indication message, so that the network side equipment organizes and forwards data according to the updated data forwarding list. Compared with the prior art, the invention can copy the data to be forwarded through the network and send the data to each participant terminal, thereby saving wireless resources.
An embodiment of the present invention further provides a device for implementing a multi-party call, which is located at an organizer terminal, and as shown in fig. 8, the device includes:
a generating unit 11, configured to generate a call change instruction message after a new call or a hang-up call is made, where the call change instruction message is used to instruct a network-side device to update a maintained data forwarding list;
a sending unit 12, configured to send the call change instruction message generated by the generating unit 11 to a network side device, so that the network side device updates the maintained data forwarding list according to the call change instruction message, and performs data organization and forwarding according to the updated data forwarding list.
Optionally, the call change indication message includes an IP source address of the organizer terminal, a source port, an identifier of an add or delete action, an number of add or delete actions, and destination information of the added or deleted participant terminals.
Optionally, the destination information includes an IP address, a port, and a DRB, an RB, and an LCID corresponding to the data to be transmitted.
Optionally, the call change indication message includes an IP source address, a source port, and a flush action identifier of the organizer terminal.
An embodiment of the present invention further provides an apparatus for implementing a multi-party call, where the apparatus is located on a network side device, and as shown in fig. 9, the apparatus includes:
a receiving unit 21, configured to receive a call change instruction message sent by an organizer terminal, where the call change instruction message is used to instruct to update a maintained data forwarding list;
an updating unit 22, configured to update a data forwarding list maintained by the updating unit according to the call change indication message;
and the processing unit 23 is configured to organize and forward the data packets sent by the organizer terminal according to the data forwarding list updated by the updating unit 22.
Optionally, when the call change instruction message includes the IP source address of the organizer terminal, the source port, the add action identifier, the added number, and destination information of the added participant terminal, the updating unit 22 is configured to add a data forwarding entry in a data forwarding list corresponding to the IP source address and the source port of the organizer terminal, where the number of the added data forwarding entry is equal to the added number, and information of the added data forwarding entry is the destination information of the added participant terminal.
Optionally, when the call change instruction message includes the IP source address of the organizer terminal, the source port, the deletion action identifier, the deletion number, and the destination information of the deleted participant terminal, the updating unit 22 is configured to delete a data forwarding entry in a data forwarding list corresponding to the IP source address and the source port of the organizer terminal, where the number of the deleted data forwarding entries is equal to the deletion number, and the deleted data forwarding entry is a data forwarding entry having the destination information of the deleted participant terminal.
Optionally, the destination information includes an IP address, a port, and a DRB, an RB, and an LCID corresponding to the data to be transmitted.
Alternatively, as shown in fig. 10, the processing unit 23 includes:
a copying module 231, configured to copy, for each data forwarding item in the data forwarding list updated by the updating unit, a data packet sent by the organizer terminal;
a modifying module 232, configured to modify the destination address of the data packet obtained by copying by the copying module 231 into the IP address of the data forwarding item, and modify the destination port of the data packet obtained by copying into the port of the data forwarding item;
a searching module 233, configured to search for a network link identifier corresponding to the DRB, RB, and LCID of the data forwarding entry;
a sending module 234, configured to send the data packet modified by the modifying module 232 to the participant terminal through the network link corresponding to the network link identifier.
Optionally, when the call change indication message includes the IP source address, the source port, and the clearing action identifier of the organizer terminal, the updating unit 22 is configured to clear the data forwarding list corresponding to the IP source address and the source port of the organizer terminal.
The device for realizing multi-party call provided by the embodiment of the invention enables the network side equipment to update the maintained data forwarding list by generating the call change indication message, so that the network side equipment organizes and forwards data according to the updated data forwarding list. Compared with the prior art, the invention can copy the data to be forwarded through the network and send the data to each participant terminal, thereby saving wireless resources.
The embodiment of the invention also provides a terminal which comprises the device for realizing the multi-party call positioned at the organizer terminal.
The invention provides a network side device, which comprises the device for realizing the multi-party call positioned on the network side device.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (20)
1. A method for realizing multi-party call is applied to an organizer terminal, and comprises the following steps:
after a new call is established or a call is hung up, generating a call change indication message, wherein the call change indication message is used for indicating the network side equipment to update the maintained data forwarding list;
sending the call change indication message to network side equipment so that the network side equipment updates the maintained data forwarding list according to the call change indication message and organizes and forwards data according to the updated data forwarding list;
the call change indication message comprises an IP source address of the organizer terminal, a source port, an adding or deleting action identifier, an adding or deleting quantity and destination information of added or deleted participant terminals;
the sending the call change instruction message to a network side device to enable the network side device to update the maintained data forwarding list according to the call change instruction message, and to organize and forward data according to the updated data forwarding list, including: and sending the call change indication message to network side equipment so that the network side equipment adds or deletes a data forwarding item through the change indication message, wherein the data forwarding item has destination information of the participant terminal, and copying and sending a data packet sent by the organizer terminal to each participant terminal aiming at each data forwarding item of the updated data forwarding list.
2. The method of claim 1, wherein the destination information comprises an IP address, a port, a DRB, an RB, and an LCID corresponding to the data to be transmitted.
3. The method of claim 1, wherein the indication of call change message comprises an IP source address, a source port, and a flush action ID of the organizer terminal.
4. A method for realizing multi-party call is applied to network side equipment, and the method comprises the following steps:
receiving a call change indication message sent by an organizer terminal, wherein the call change indication message is used for indicating to update a maintained data forwarding list;
updating a data forwarding list maintained by the mobile terminal according to the call change indication message;
organizing and forwarding the data packet sent by the organizer terminal according to the updated data forwarding list;
the call change indication message comprises an IP source address, a source port, an increase action identifier, an increase quantity and destination information of an increased participant terminal of the organizer terminal;
the organizing and forwarding the data packet sent by the organizer terminal according to the updated data forwarding list includes: and adding or deleting a data forwarding item through the change indication message, wherein the data forwarding item has destination information of the participant terminal, and copying and sending the data packet sent by the organizer terminal to each participant terminal aiming at each data forwarding item of the updated data forwarding list.
5. The method of claim 4, wherein when the call change indication message includes an IP source address of an organizer terminal, a source port, an adding action identifier, an increasing number, and destination information of an increased participant terminal, the updating the maintained data forwarding list according to the call change indication message comprises: and adding data forwarding items in a data forwarding list corresponding to the IP source address and the source port of the organizer terminal, wherein the number of the added data forwarding items is equal to the added number, and the information of the added data forwarding items is the destination information of the added participant terminal.
6. The method of claim 4, wherein when the call change indication message includes an IP source address, a source port, a deletion action identifier, a deletion number, and destination information of deleted participant terminals, the updating the data forwarding list maintained by the call change indication message comprises: deleting data forwarding entries in a data forwarding list corresponding to the IP source address and the source port of the organizer terminal, wherein the number of the deleted data forwarding entries is equal to the deletion number, and the deleted data forwarding entries are data forwarding entries having the destination information of the deleted participant terminal.
7. The method of claim 5 or 6, wherein the destination information comprises an IP address, a port, a DRB, an RB and an LCID corresponding to the data to be transmitted.
8. The method according to claim 7, wherein said organizing and forwarding the data packets sent from the organizer terminal according to the updated data forwarding list comprises:
copying a data packet sent by the organizer terminal by the IP source address and the source port aiming at each data forwarding item in the updated data forwarding list;
modifying the destination address of the data packet obtained by copying into the IP address of the data forwarding item, and modifying the destination port of the data packet obtained by copying into the port of the data forwarding item;
searching network link identifiers corresponding to the DRB, RB and LCID of the data forwarding item;
and sending the modified data packet to the participant terminal through the network link corresponding to the network link identifier.
9. The method of claim 4, wherein when the call change indication message includes an IP source address, a source port, and a flush action identifier of the organizer terminal, the updating the data forwarding list maintained by the call change indication message according to the call change indication message comprises: and clearing the data forwarding list corresponding to the IP source address and the source port of the organizer terminal.
10. An apparatus for implementing a multi-party call, located at an organizer terminal, the apparatus comprising:
the generating unit is used for generating a call change indication message after a new call or a hang-up call is established, wherein the call change indication message is used for indicating the network side equipment to update the maintained data forwarding list;
a sending unit, configured to send the call change indication message generated by the generating unit to a network side device, so that the network side device updates the maintained data forwarding list according to the call change indication message, and performs data organization and forwarding according to the updated data forwarding list;
the call change indication message comprises an IP source address of the organizer terminal, a source port, an adding or deleting action identifier, an adding or deleting quantity and destination information of added or deleted participant terminals;
the sending the call change instruction message to a network side device to enable the network side device to update the maintained data forwarding list according to the call change instruction message, and to organize and forward data according to the updated data forwarding list, including: and adding or deleting a data forwarding item through the change indication message, wherein the data forwarding item has destination information of the participant terminal, and copying and sending the data packet sent by the organizer terminal to each participant terminal aiming at each data forwarding item of the updated data forwarding list.
11. The apparatus of claim 10, wherein the destination information comprises an IP address, a port, a DRB, an RB, and an LCID corresponding to the data to be transmitted.
12. The apparatus of claim 10, wherein the indication of call change message comprises an IP source address, a source port, and a flush action id of the organizer terminal.
13. An apparatus for implementing a multi-party call, located at a network side device, the apparatus comprising:
a receiving unit, configured to receive a call change indication message sent by an organizer terminal, where the call change indication message is used to indicate that a maintained data forwarding list is updated;
the updating unit is used for updating the data forwarding list maintained by the updating unit according to the call change indication message;
the processing unit is used for organizing and forwarding the data packet sent by the organizer terminal according to the data forwarding list updated by the updating unit;
the call change indication message comprises an IP source address, a source port, an increase action identifier, an increase quantity and destination information of an increased participant terminal of the organizer terminal;
the organizing and forwarding the data packet sent by the organizer terminal according to the updated data forwarding list includes: and adding or deleting a data forwarding item through the change indication message, wherein the data forwarding item has destination information of the participant terminal, and copying and sending the data packet sent by the organizer terminal to each participant terminal aiming at each data forwarding item of the updated data forwarding list.
14. The apparatus according to claim 13, wherein when the call change instruction message includes an IP source address of an organizer terminal, a source port, an addition action identifier, an addition number, and destination information of an added participant terminal, the updating unit is configured to add a data forwarding entry in a data forwarding list corresponding to the IP source address and the source port of the organizer terminal, the number of the added data forwarding entry being equal to the addition number, and the information of the added data forwarding entry being destination information of the added participant terminal.
15. The apparatus according to claim 13, wherein when the call change instruction message includes an IP source address of an organizer terminal, a source port, a deletion action identifier, a deletion number, and destination information of deleted participant terminals, the updating unit is configured to delete a data forwarding entry in a data forwarding list corresponding to the IP source address and the source port of the organizer terminal, the deleted data forwarding entry being equal to the deletion number, the deleted data forwarding entry being a data forwarding entry having destination information of the deleted participant terminal.
16. The apparatus according to claim 14 or 15, wherein the destination information comprises an IP address, a port, a DRB corresponding to the data to be transmitted, an RB, and an LCID.
17. The apparatus of claim 16, wherein the processing unit comprises:
a copying module, configured to copy, for each data forwarding entry in the data forwarding list updated by the updating unit, a data packet sent by the organizer terminal from the IP source address and the source port;
a modification module, configured to modify a destination address of the packet obtained by copying by the copying module into an IP address of the data forwarding item, and modify a destination port of the packet obtained by copying into a port of the data forwarding item;
the searching module is used for searching the network link identifiers corresponding to the DRB, the RB and the LCID of the data forwarding item;
and the sending module is used for sending the data packet modified by the modifying module to the participant terminal through the network link corresponding to the network link identifier.
18. The apparatus of claim 13, wherein when the call change indication message includes an IP source address, a source port, and a flushing action id of the organizer terminal, the updating unit is configured to flush a data forwarding list corresponding to the IP source address and the source port of the organizer terminal.
19. A terminal, characterized in that the terminal comprises the multi-party call implementation apparatus according to any one of claims 10 to 12.
20. A network side device, characterized in that the terminal comprises the multi-party call implementation apparatus according to any one of claims 13 to 18.
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