CN104378819A - Method and system for call data synchronization during network switching - Google Patents
Method and system for call data synchronization during network switching Download PDFInfo
- Publication number
- CN104378819A CN104378819A CN201410708294.3A CN201410708294A CN104378819A CN 104378819 A CN104378819 A CN 104378819A CN 201410708294 A CN201410708294 A CN 201410708294A CN 104378819 A CN104378819 A CN 104378819A
- Authority
- CN
- China
- Prior art keywords
- network
- transmitting terminal
- information
- cscf
- terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
Abstract
The invention is applicable to the technical field of communication and provides a method for call data synchronization during network switching. The method includes: in a call process, when needing to be switched from a first network to a second network, a sending terminal sends a network switching instruction to network equipment; after a receiving terminal returns network switching confirmation information, the sending terminal sends protocol information carrying specific synchronization information to the network equipment; when monitoring that a data stream of the specific synchronization information exists, the network equipment returns confirmation information of the data stream of the specific synchronization information to the sending terminal; when multimedia information includes the specific synchronization information, the network equipment judges whether or not the multimedia information received by the first network and the second network is synchronous in transmission, if yes, the network equipment forwards the multimedia information sent by the second network to the receiving terminal, controls the sending terminal to interrupt connection with a base station of the first network and takes the second network as a data transmission path subsequently. By the aid of the method for call data synchronization during network switching, call quality can be guaranteed effectively.
Description
Technical field
The invention belongs to communication technical field, particularly relate to the method and system that in a kind of network switching process, communicating data is synchronous.
Background technology
At present, use high-speed mobile Internet phone-calling, particularly high definition voice call and HD video call, all will consume flow greatly, cause offered load also can to operator mobile network simultaneously.But along with the continuous maturation of Wi-Fi technology, Wi-Fi technology also will realize high definition voice call and HD video call, so utilize Wi-Fi network to be necessary with the data traffic and offered load of sharing high-speed mobile network.
But Wi-Fi network exists the little deficiency of coverage, so when being switched to from coverage the region call not having coverage, will no signal be there will be, thus have a strong impact on call.Therefore, when in order to save flow but not affect call, in high definition voice call and HD video call, carry out network switching be necessary.But communicating data is synchronously wherein most critical when network switches.
Therefore be necessary to propose one how in high definition voice call or HD video call, when Wi-Fi and high-speed mobile network switch, communicating data keeps synchronous new technical scheme.
Summary of the invention
The object of the present invention is to provide the method and system that in a kind of network switching process, communicating data is synchronous, be intended to solve in high definition voice call or HD video call, when Wi-Fi and high-speed mobile network switch, how communicating data keeps synchronous problem.
First aspect, the invention provides a kind of method that in network switching process, communicating data is synchronous, said method comprising the steps of:
In communication process, when transmitting terminal needs to be switched to second network from first network, the network equipment receives the network handover instruction information that transmitting terminal sends, and described network handover instruction information is transmitted to receiving terminal;
The network that receiving terminal returns by the described network equipment switches confirmation and is transmitted to described transmitting terminal;
The described network equipment receives the protocol information carrying certain synchronization information that described transmitting terminal sends;
The described network equipment monitors the data flow whether with described certain synchronization information;
The described network equipment returns the confirmation listening to the data flow with described certain synchronization information to described transmitting terminal;
The described network equipment receives the multimedia messages identical with described first network that described transmitting terminal is sent by described second network;
The described network equipment judges whether include described certain synchronization information in described multimedia messages, if have, then judge further the multimedia messages that received by first network and second network whether transmitting synchronous, if transmitting synchronous, then send synchronic command to described transmitting terminal, interrupt the connection with first network to control described transmitting terminal;
The multimedia Information Transfer that second network sends by the described network equipment is to described receiving terminal.
Second aspect, the invention provides the system that in a kind of network switching process, communicating data is synchronous, and described system comprises:
Query call conversation controller, in communication process, when transmitting terminal needs to be switched to second network from first network, receives the network handover instruction information that transmitting terminal sends;
Agent call conversation controller, for being transmitted to receiving terminal by described network handover instruction information;
Query call conversation controller, the network also for being returned by receiving terminal switches confirmation and is transmitted to described transmitting terminal;
Service call conversation controller, for receiving the protocol information carrying certain synchronization information that described transmitting terminal sends;
Multimedia resource controller, monitors the data flow whether with described certain synchronization information for controlling multimedia resource processor;
Multimedia resource processor, for monitoring the data flow whether with described certain synchronization information;
Query call conversation controller, also for returning the confirmation listening to the data flow with described certain synchronization information to described transmitting terminal;
Multimedia resource processor, also for receiving the multimedia messages identical with described first network that described transmitting terminal is sent by described second network;
Multimedia resource processor, also whether include described certain synchronization information in described multimedia messages for judging, if have, then judge further the multimedia messages that received by first network and second network whether transmitting synchronous, if transmitting synchronous, then send synchronic command to described transmitting terminal, interrupt the connection with first network to control described transmitting terminal;
Multimedia resource controller, also for controlling multimedia Information Transfer that second network sends by multimedia resource processor to described receiving terminal;
Multimedia resource processor, also for multimedia Information Transfer that second network is sent to described receiving terminal.
In the present invention, transmitting terminal and receiving terminal are in such as voice call or video call process, when transmitting terminal needs to be switched to second network from first network, during as being switched to Wi-Fi network from high-speed mobile network, or when being switched to high-speed mobile network from Wi-Fi network, described transmitting terminal sends network switching command to the network equipment, after terminal to be received returns network switching confirmation, described transmitting terminal sends the protocol information carrying certain synchronization information to the network equipment, network equipment monitoring is no the data flow with certain synchronization information, if listened to, transmitting terminal sends the multimedia messages identical with first network by second network to the network equipment, the network equipment judges whether include described certain synchronization information in described multimedia messages, if comprise, then judge multimedia messages that first network and second network receive whether transmitting synchronous further, if synchronous, the multimedia Information Transfer then sent by second network is to described receiving terminal, and control the connection of the interruption of described transmitting terminal and first network base station, follow-up is then data transfer path with second network.The present invention adopts such scheme, because Wi-Fi network transmission is free, therefore, it is possible to share data traffic and the offered load of high-speed mobile network; In addition, when in communication process, during Wi-Fi network signal difference, so call can be switched to high-speed mobile network from Wi-Fi network and converse, can speech quality be ensured like this.
Accompanying drawing explanation
Fig. 1 is the realization flow schematic diagram of the method that in the network switching process that provides of the embodiment of the present invention, communicating data is synchronous;
Fig. 2 is the system architecture schematic diagram that the embodiment of the present invention provides;
Fig. 3 is the realization flow schematic diagram of the method that in the network switching process that provides of one embodiment of the invention, communicating data is synchronous;
Fig. 4 is the realization flow schematic diagram of the method that in the network switching process that provides of another embodiment of the present invention, communicating data is synchronous;
Fig. 5 is the system configuration schematic diagram that in the network switching process that provides of the embodiment of the present invention, communicating data is synchronous.
Embodiment
In order to make object of the present invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In the present invention, transmitting terminal and receiving terminal are in such as voice call or video call process, when transmitting terminal needs to be switched to second network from first network, during as being switched to Wi-Fi network from high-speed mobile network, or when being switched to high-speed mobile network from Wi-Fi network, described transmitting terminal sends network switching command to the network equipment, after terminal to be received returns network switching confirmation, described transmitting terminal sends the protocol information carrying certain synchronization information to the network equipment, network equipment monitoring is no the data flow with certain synchronization information, if listened to, transmitting terminal sends the multimedia messages identical with first network by second network to the network equipment, the network equipment judges whether include described certain synchronization information in described multimedia messages, if comprise, then judge multimedia messages that first network and second network receive whether transmitting synchronous further, if synchronous, the multimedia Information Transfer then sent by second network is to described receiving terminal, and control the connection of the interruption of described transmitting terminal and first network base station, follow-up is then data transfer path with second network.The present invention adopts such scheme, because Wi-Fi network transmission is free, therefore, it is possible to share data traffic and the offered load of high-speed mobile network; In addition, when in communication process, during Wi-Fi network signal difference, so call can be switched to high-speed mobile network from Wi-Fi network and converse, can speech quality be ensured like this.
Refer to Fig. 1, the invention provides a kind of method that in network switching process, communicating data is synchronous, it comprises the following steps:
In step S101, in communication process, when transmitting terminal needs to be switched to second network from first network, the network equipment receives the network handover instruction information that transmitting terminal sends;
In the present invention, trigger described transmitting terminal sends trigger condition from network handover instruction information to the described network equipment, can be: first network is high-speed mobile network, when second network is Wi-Fi network, when transmitting terminal detects second network, transmitting terminal sends network handover instruction information to the network equipment.Or first network is Wi-Fi network, when second network is high-speed mobile network, when transmitting terminal detects that first network signal is more weak and can not ensure speech quality, transmitting terminal sends network handover instruction information to the network equipment.
In step s 102, described network handover instruction information is transmitted to receiving terminal by the described network equipment;
In step s 103, the network that receiving terminal returns by the described network equipment switches confirmation and is transmitted to described transmitting terminal;
In step S104, the described network equipment receives the protocol information carrying certain synchronization information that described transmitting terminal sends;
In step S105, the described network equipment monitors the data flow whether with described certain synchronization information;
In step s 106, the described network equipment returns the confirmation listening to the data flow with described certain synchronization information to described transmitting terminal;
In step s 107, the described network equipment receives the multimedia messages identical with described first network that described transmitting terminal is sent by described second network;
In embodiments of the present invention, now transmitting terminal sends identical multi-medium data by first network with second network simultaneously.
In step S108, the described network equipment judges whether include described certain synchronization information in described multimedia messages, if have, then judge further the multimedia messages that received by first network and second network whether transmitting synchronous, if transmitting synchronous, then send synchronic command to described transmitting terminal, interrupt the connection with first network to control described transmitting terminal;
In step S109, the multimedia Information Transfer that second network sends by the described network equipment is to described receiving terminal.
In embodiments of the present invention, in voice/video call, be all multimedia data stream, this multimedia data stream mainly uses RTP/RTCP as the agreement of its prevailing transmission.The present embodiment is by expanding these two agreements, certain synchronization information is added in the ad-hoc location of the RTP/RTCP agreement of transmitting multimedia, if when the multimedia data stream that first network and second network transmit all includes certain synchronization information in ad-hoc location, then think that multimedia data stream that first network and second network transmit is the multimedia data stream of same call.Be implemented as follows: when transmitting terminal receives after network that receiving terminal returns switches confirmation, transmitting terminal adds certain synchronization information in the ad-hoc location of the RTP/RTCP agreement of transmitting multimedia, then, transmitting terminal carries in ad-hoc location to the network equipment transmission multimedia data stream adding certain synchronization information by first network and second network; The network equipment receives from after the multimedia data stream in two networks, detect from RTP or RTCP and whether in ad-hoc location, comprise certain synchronization information, if the multimedia data stream of two Internet Transmissions is all included in identical ad-hoc location comprise identical certain synchronization information, then judge that two data flow are high definition voice/video data flow of same call.
Below the expansion of Real-time Transport Protocol is described in detail:
The form of the RTP header of RTP Data Transport Protocol is as shown in form 1-1.RTP header provides the field of an X (Extension), when X is 1, has one to expand header after RTP header, and the present embodiment utilizes this to expand header.Define one and expand header, arrange how many expansion bits altogether in last byte expanding header, in the bit of setting, the present embodiment deposits the callId of communication process in the form of text, and this callId is the above-mentioned certain synchronization information mentioned.
Table 1-1RTP header format
Below the expansion of rtcp protocol is described in detail:
RTCP packet has the several types transmitting different control informations respectively: SR, RR, SDES, BYE, APP ...
Each mixing RTCP packet must comprise the SDES packet containing a CNAME data item, distinguishes the important information in different pieces of information source so SDES packet is user.Its packet structure is as shown in table 1-2.
Table 1-2 data source describes RTCP packet
This data packet format specifies: each data block adds 0 by a SSRC/CSRC identifier or multiple data item forms.Each data item by the type field of 8, the byte count field of the description text size of 8 and text composition.Text size can not more than 255 bytes, and text can not terminate with null byte.The data item of data block ends up with one or more null byte.The in the end non-tail of a data item, if less than 32 bytes, then fill up with null byte.
In packet structure except very important CNAME data item, additionally provide NAME (2), EMAIL (3), these three packets of PHONE (4), this enforcement adds the information of upper setting to these three packets, i.e. the above-mentioned certain synchronization information mentioned.
| 0-7 | 8-15 | 16-31 |
| Identity type | Length | Data source identification information |
In order to technical solutions according to the invention are described, be described below by specific embodiment.
See also Fig. 2 and Fig. 3, for working as transmitting terminal and receiving terminal (as voice call or video calling) in communication process, transmitting terminal needs the realization flow being switched to second network from first network, take transmitting terminal as terminal A, receiving terminal is terminal B, first network is high-speed mobile network, and second network is Wi-Fi network is that example is to be described in detail.In handoff procedure, terminal A can be connected in high-speed mobile network and Wi-Fi network simultaneously, and sends identical communicating data stream by these two networks to terminal B, simultaneous process as shown in Figure 2 simultaneously.1. 5. 4. be 2. 5. the data stream transmitting approach of high-speed mobile network, be 3. the data flow transmission route of Wi-Fi network.In figure, dotted portion is signalling communication, and bold portion is user data, i.e. media communication.All namely 1. 2. 5. for primary communications channel before having switched with high-speed mobile network; Mainly comprise the following steps:
In step s 201, when terminal A detects Wi-Fi signal and this Wi-Fi signal is stronger, terminal A initiates network by Wi-Fi network to terminal B and switches, I-CSCF (Interrogating Call SessionControl Function, query call conversation controller) the network switching command that terminal A sends can be received, first I-CSCF searches terminal B and to converse at present the S-CSCF (Serving CallSession Control Function, service call conversation controller) at place in HSS; Network switching command is transmitted to described S-CSCF by I-CSCF.
In step S202, S-CSCF sends described network switching command by the P-CSCF (Proxy Call SessionControl Function, agent call conversation controller) specified in HSS to terminal B.
In step S203, S-CSCF is to MRFC (Multimedia Resource FunctionController simultaneously, multimedia resource controller) send and search terminal A and terminal B and to converse at present the instruction of MRFP (Multimedia Resource Function Processor, multimedia resource processor) at place.
But be understandable that, step S202 and step S203 can perform simultaneously, or first execution step S202 performs step S203 again, or first execution step S203 performs step S202 again.
In step S204, network that S-CSCF receiving terminal B returns switches confirmation, and receives the MRFP information found that MRFC returns, and wherein, includes the relevant information such as medium type of the IP address of MRFP, state, support in described MRFP information.
In step S205, the network that S-CSCF is returned to terminal A transmitting terminal B through Wi-Fi network by I-CSCF switches confirmation, and to the MRFP information found that terminal A transmission MRFC returns.
In step S206, terminal A, after receiving information, sends to S-CSCF and carries the protocol information being added with certain synchronization information at ad-hoc location.
In step S207, the protocol information that carrying of receiving is added with certain synchronization information at ad-hoc location is sent to MRFC by S-CSCF, and MRFC control MRFP goes to monitor the data flow whether with certain synchronization information.When listening to the data flow with certain synchronization information, then S-CSCF returns the confirmation listening to the data flow with described certain synchronization information to terminal A.
In step S208, after terminal A receives the confirmation information, according to the IP address of the above-mentioned MRFP received, send the multimedia messages identical with high-speed mobile network by Wi-Fi network directly to described MRFP.
In step S209, after MRFP receives described multimedia messages, judge in described multimedia messages, whether to include described certain synchronization information, if comprise, then judge further the multimedia messages that received by high-speed mobile network and Wi-Fi network whether transmitting synchronous, if transmitting synchronous, feed back synchronic command to MRFC; Synchronic command described in MRFC sends to S-CSCF.
In step S210, S-CSCF receives after synchronic command, sends synchronic command to terminal A, and S-CSCF is to MRFC sending controling instruction simultaneously, sends the multimedia messages that Wi-Fi network transmits with control MRFP to terminal B.
In step S211, terminal A is after receiving the synchronic command that S-CSCF sends, interrupt the connection of terminal A and high-speed mobile network base station, main employing Wi-Fi network is data transfer path, to complete the Multimedia Data Transmission process in follow-up communication process.
From the above, the present embodiment is when terminal A is in employing high-speed mobile Internet phone-calling, Wi-Fi signal detected and this Wi-Fi signal is stronger time, then current talking is switched to Wi-Fi network from high-speed mobile network, because Wi-Fi network transmission is free, therefore, it is possible to share data traffic and the offered load of high-speed mobile network, save cost of the phone call to user.
See also Fig. 2 and Fig. 4, for working as transmitting terminal and receiving terminal (as voice call or video calling) in communication process, transmitting terminal needs the realization flow being switched to second network from first network, take transmitting terminal as terminal A, receiving terminal is terminal B, first network is Wi-Fi network, and second network to be high-speed mobile network be example, to be described in detail, mainly comprises the following steps:
In step S301, when terminal A detects that Wi-Fi signal is more weak and can not ensure speech quality, terminal A initiates network by high-speed mobile network to terminal B and switches, I-CSCF can receive the network switching command that terminal A sends, and first I-CSCF searches terminal B and to converse at present the S-CSCF at place in HSS; Network switching command is transmitted to described S-CSCF by I-CSCF.
In step s 302, S-CSCF sends described network switching command by the P-CSCF specified in HSS to terminal B.
In step S303, simultaneously S-CSCF sends to MRFC (multimedia resource controller) and searches terminal A and terminal B and to converse at present the instruction of MRFP (multimedia resource processor) at place.
But be understandable that, step S302 and step S303 can perform simultaneously, or first execution step S302 performs step S303 again, or first execution step S303 performs step S302 again.
In step s 304, network that S-CSCF receiving terminal B returns switches confirmation, and receives the MRFP information found that MRFC returns, and wherein, includes the relevant information such as medium type of the IP address of MRFP, state, support in described MRFP information.
In step S305, the network that S-CSCF is returned to terminal A transmitting terminal B through high-speed mobile network by I-CSCF switches confirmation, and to the MRFP information found that terminal A transmission MRFC returns.
In step S306, terminal A, after receiving information, sends to S-CSCF and carries the protocol information being added with certain synchronization information at ad-hoc location.
In step S307, the protocol information that carrying of receiving is added with certain synchronization information at ad-hoc location is sent to MRFC by S-CSCF, and MRFC control MRFP goes to monitor the data flow whether with certain synchronization information.When listening to the data flow with certain synchronization information, then S-CSCF returns the confirmation listening to the data flow with described certain synchronization information to terminal A.
In step S308, after terminal A receives the confirmation information, according to the IP address of the above-mentioned MRFP received, send the multimedia messages identical with Wi-Fi network by high-speed mobile network directly to described MRFP.
In step S309, after MRFP receives described multimedia messages, judge in described multimedia messages, whether to include described certain synchronization information, if comprise, then judge further the multimedia messages that received by high-speed mobile network and Wi-Fi network whether transmitting synchronous, if transmitting synchronous, feed back synchronic command to MRFC; Synchronic command described in MRFC sends to S-CSCF.
In step S310, S-CSCF receives after synchronic command, sends synchronic command to terminal A, and S-CSCF is to MRFC sending controling instruction simultaneously, sends the multimedia messages that high-speed mobile Internet Transmission comes with control MRFP to terminal B.
In step S311, terminal A is after receiving the synchronic command that S-CSCF sends, interrupt the connection of terminal A and Wi-Fi network base station, main employing high-speed mobile network is data transfer path, to complete the Multimedia Data Transmission process in follow-up communication process.
From the above, current talking, when terminal A is in employing Wi-Fi call, when detecting that Wi-Fi signal is more weak and can not ensure speech quality, is then switched to high-speed mobile network from Wi-Fi network, therefore, it is possible to ensure speech quality by the present embodiment.
Referring to Fig. 5, is the structural representation of the synchronous system of communicating data in the network switching process that the embodiment of the present invention provides.For convenience of explanation, illustrate only the part relevant to the embodiment of the present invention.The system that in described network switching process, communicating data is synchronous mainly comprises: query call conversation controller 101, service call conversation controller 102, agent call conversation controller 103, multimedia resource controller 104 and multimedia resource processor 105.
Query call conversation controller 101, in communication process, when transmitting terminal needs to be switched to second network from first network, receives the network handover instruction information that transmitting terminal sends;
In the present invention, trigger described transmitting terminal sends trigger condition from network handover instruction information to described query call conversation controller 101, can be: first network is high-speed mobile network, when second network is Wi-Fi network, when transmitting terminal detects second network, transmitting terminal sends network handover instruction information to query call conversation controller 101.Or, first network is Wi-Fi network, when second network is high-speed mobile network, when transmitting terminal detects that first network signal is more weak and can not ensure speech quality, transmitting terminal sends network handover instruction information to query call conversation controller 101.
Agent call conversation controller 103, for being transmitted to receiving terminal by described network handover instruction information;
Query call conversation controller 101, the network also for being returned by receiving terminal switches confirmation and is transmitted to described transmitting terminal;
Service call conversation controller 102, for receiving the protocol information carrying certain synchronization information that described transmitting terminal sends;
Multimedia resource controller 104, monitors the data flow whether with described certain synchronization information for controlling multimedia resource processor 105;
Multimedia resource processor 105, for monitoring the data flow whether with described certain synchronization information;
Service call conversation controller 102, also for returning the confirmation listening to the data flow with described certain synchronization information to described transmitting terminal;
Multimedia resource processor 105, also for receiving the multimedia messages identical with described first network that described transmitting terminal is sent by described second network;
Multimedia resource processor 105, also whether include described certain synchronization information in described multimedia messages for judging, if have, then judge further the multimedia messages that received by first network (such as high-speed mobile network) and second network (such as WIFI network) whether transmitting synchronous, if transmitting synchronous, then send synchronic command to described transmitting terminal, interrupt the connection with first network to control described transmitting terminal;
Multimedia resource controller 104, also for controlling multimedia Information Transfer that second network sends by multimedia resource processor 105 to described receiving terminal;
Multimedia resource processor 105, also for multimedia Information Transfer that second network is sent to described receiving terminal.
In embodiments of the present invention, query call conversation controller receives the network switching command that transmitting terminal sends; Query call conversation controller is searched receiving terminal and to be conversed at present the service call conversation controller at place in HSS; Network switching command is transmitted to described service call conversation controller by query call conversation controller; Service call conversation controller sends described network switching command by the agent call conversation controller of specifying in HSS to receiving terminal.
In embodiments of the present invention, S-CSCF sends to MRFC and searches transmitting terminal and receiving terminal and to converse at present the instruction of MRFP at place; S-CSCF receives the network that returns of receiving terminal and switches confirmation, and receives the MRFP information found that MRFC returns; The network that S-CSCF is returned to transmitting terminal transmission and reception terminal through second network by I-CSCF switches confirmation, and to the MRFP information found that transmitting terminal transmission MRFC returns.
In embodiments of the present invention, the protocol information that carrying of receiving is added with certain synchronization information at ad-hoc location is sent to MRFC by S-CSCF; MRFC control MRFP goes to monitor the data flow whether with certain synchronization information; When listening to the data flow with certain synchronization information, then S-CSCF returns the confirmation listening to the data flow with described certain synchronization information to transmitting terminal.
In embodiments of the present invention, after MRFP receives multimedia messages, judge in described multimedia messages, whether to include described certain synchronization information, if comprise, then judge further the multimedia messages that received by first network and second network whether transmitting synchronous, if transmitting synchronous, feed back synchronic command to MRFC; Synchronic command described in MRFC sends to S-CSCF; S-CSCF receives after synchronic command, sends synchronic command to transmitting terminal, interrupts the connection with first network to control described transmitting terminal; S-CSCF is to MRFC sending controling instruction simultaneously, the multimedia messages transmitted to receiving terminal transmission second network with control MRFP.
In sum, the present invention at transmitting terminal and receiving terminal in such as voice call or video call process, when transmitting terminal needs to be switched to second network from first network, during as being switched to Wi-Fi network from high-speed mobile network, or when being switched to high-speed mobile network from Wi-Fi network, described transmitting terminal sends network switching command to the network equipment, after terminal to be received returns network switching confirmation, described transmitting terminal sends the protocol information carrying certain synchronization information to the network equipment, network equipment monitoring is no the data flow with certain synchronization information, if listened to, transmitting terminal sends the multimedia messages identical with first network by second network to the network equipment, the network equipment judges whether include described certain synchronization information in described multimedia messages, if comprise, then judge multimedia messages that first network and second network receive whether transmitting synchronous further, if synchronous, the multimedia Information Transfer then sent by second network is to described receiving terminal, and control the connection of the interruption of described transmitting terminal and first network base station, follow-up is then data transfer path with second network.The present invention adopts such scheme, because Wi-Fi network transmission is free, therefore, it is possible to share data traffic and the offered load of high-speed mobile network; In addition, when in communication process, during Wi-Fi network signal difference, so call can be switched to high-speed mobile network from Wi-Fi network and converse, can speech quality be ensured like this.
One of ordinary skill in the art will appreciate that all or part of step realized in above-described embodiment method is that the hardware that can carry out instruction relevant by program has come, described program can be stored in a computer read/write memory medium, described storage medium, as ROM/RAM, disk, CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the method that in network switching process, communicating data is synchronous, is characterized in that, said method comprising the steps of:
In communication process, when transmitting terminal needs to be switched to second network from first network, the network equipment receives the network handover instruction information that transmitting terminal sends, and described network handover instruction information is transmitted to receiving terminal;
The network that receiving terminal returns by the described network equipment switches confirmation and is transmitted to described transmitting terminal;
The described network equipment receives the protocol information carrying certain synchronization information that described transmitting terminal sends;
The described network equipment monitors the data flow whether with described certain synchronization information;
The described network equipment returns the confirmation listening to the data flow with described certain synchronization information to described transmitting terminal;
The described network equipment receives the multimedia messages identical with described first network that described transmitting terminal is sent by described second network;
The described network equipment judges whether include described certain synchronization information in described multimedia messages, if have, then judge further the multimedia messages that received by first network and second network whether transmitting synchronous, if transmitting synchronous, then send synchronic command to described transmitting terminal, interrupt the connection with first network to control described transmitting terminal;
The multimedia Information Transfer that second network sends by the described network equipment is to described receiving terminal.
2. the method for claim 1, is characterized in that, the described network equipment receives the network handover instruction information that transmitting terminal sends, and described network handover instruction information is transmitted to the step of receiving terminal, specifically comprises:
Query call conversation controller I-CSCF receives the network switching command that transmitting terminal sends;
I-CSCF searches receiving terminal and to converse at present the service call conversation controller S-CSCF at place in HSS;
Network switching command is transmitted to described S-CSCF by I-CSCF;
S-CSCF sends described network switching command by the agent call conversation controller P-CSCF specified in HSS to receiving terminal.
3. method as claimed in claim 2, is characterized in that, the described network equipment receive that described transmitting terminal sends carry the step of the protocol information of certain synchronization information before, also comprise:
S-CSCF sends to multimedia resource controller MRFC and searches transmitting terminal and receiving terminal and to converse at present the instruction of multimedia resource processor MRFP at place;
S-CSCF receives the network that returns of receiving terminal and switches confirmation, and receives the MRFP information found that MRFC returns;
The network that S-CSCF is returned to transmitting terminal transmission and reception terminal through second network by I-CSCF switches confirmation, and to the MRFP information found that transmitting terminal transmission MRFC returns.
4. method as claimed in claim 3, is characterized in that, the described network equipment monitors the step whether with the data flow of described certain synchronization information, specifically comprises:
The protocol information that carrying of receiving is added with certain synchronization information at ad-hoc location is sent to MRFC by S-CSCF;
MRFC control MRFP goes to monitor the data flow whether with certain synchronization information;
When listening to the data flow with certain synchronization information, then S-CSCF returns the confirmation listening to the data flow with described certain synchronization information to transmitting terminal.
5. method as claimed in claim 4, it is characterized in that, the described network equipment judges whether include described certain synchronization information in described multimedia messages, if have, then judge further the multimedia messages that received by first network and second network whether transmitting synchronous, if transmitting synchronous, then send synchronic command to described transmitting terminal, interrupt, with the step of the connection of first network, specifically comprising to control described transmitting terminal:
After MRFP receives multimedia messages, judge in described multimedia messages, whether to include described certain synchronization information, if comprise, then judge further the multimedia messages that received by first network and second network whether transmitting synchronous, if transmitting synchronous, feed back synchronic command to MRFC; Synchronic command described in MRFC sends to S-CSCF;
S-CSCF receives after synchronic command, sends synchronic command to transmitting terminal, interrupts the connection with first network to control described transmitting terminal;
S-CSCF is to MRFC sending controling instruction simultaneously, the multimedia messages transmitted to receiving terminal transmission second network with control MRFP.
6. the system that in network switching process, communicating data is synchronous, is characterized in that, described system comprises:
Query call conversation controller, in communication process, when transmitting terminal needs to be switched to second network from first network, receives the network handover instruction information that transmitting terminal sends;
Agent call conversation controller, for being transmitted to receiving terminal by described network handover instruction information;
Query call conversation controller, the network also for being returned by receiving terminal switches confirmation and is transmitted to described transmitting terminal;
Service call conversation controller, for receiving the protocol information carrying certain synchronization information that described transmitting terminal sends;
Multimedia resource controller, monitors the data flow whether with described certain synchronization information for controlling multimedia resource processor;
Multimedia resource processor, for monitoring the data flow whether with described certain synchronization information;
Service call conversation controller, also for returning the confirmation listening to the data flow with described certain synchronization information to described transmitting terminal;
Multimedia resource processor, also for receiving the multimedia messages identical with described first network that described transmitting terminal is sent by described second network;
Multimedia resource processor, also whether include described certain synchronization information in described multimedia messages for judging, if have, then judge further the multimedia messages that received by first network and second network whether transmitting synchronous, if transmitting synchronous, then send synchronic command to described transmitting terminal, interrupt the connection with first network to control described transmitting terminal;
Multimedia resource controller, also for controlling multimedia Information Transfer that second network sends by multimedia resource processor to described receiving terminal;
Multimedia resource processor, also for multimedia Information Transfer that second network is sent to described receiving terminal.
7. system as claimed in claim 6, is characterized in that,
Query call conversation controller, also for receiving the network switching command that transmitting terminal sends; And in HSS, search receiving terminal to converse at present the service call conversation controller at place; And network switching command is transmitted to described service call conversation controller;
Service call conversation controller, also sends described network switching command for the agent call conversation controller by specifying in HSS to receiving terminal.
8. system as claimed in claim 7, is characterized in that,
Service call conversation controller, also searches transmitting terminal and receiving terminal to converse at present the instruction of MRFP at place for sending to MRFC; And receive the network that receiving terminal returns and switch confirmation, and receive the MRFP information found that MRFC returns; And switch confirmation by the network that I-CSCF returns to transmitting terminal transmission and reception terminal through second network, and to the MRFP information found that transmitting terminal transmission MRFC returns.
9. system as claimed in claim 8, is characterized in that,
Service call conversation controller, the protocol information also for carrying of receiving is added with certain synchronization information at ad-hoc location sends to MRFC;
Multimedia resource controller, also goes to monitor the data flow whether with certain synchronization information for control MRFP; When listening to the data flow with certain synchronization information, then S-CSCF returns the confirmation listening to the data flow with described certain synchronization information to transmitting terminal.
10. system as claimed in claim 9, is characterized in that,
Multimedia resource processor, also for after receiving multimedia messages, judge in described multimedia messages, whether to include described certain synchronization information, if comprise, then judge further the multimedia messages that received by first network and second network whether transmitting synchronous, if transmitting synchronous, feed back synchronic command to MRFC; Synchronic command described in MRFC sends to S-CSCF;
Service call conversation controller, also for receiving after synchronic command, sends synchronic command to transmitting terminal, interrupts the connection with first network to control described transmitting terminal; Simultaneously to MRFC sending controling instruction, the multimedia messages transmitted to receiving terminal transmission second network with control MRFP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410708294.3A CN104378819B (en) | 2014-11-28 | 2014-11-28 | The synchronous method and system of communicating data in network switching process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410708294.3A CN104378819B (en) | 2014-11-28 | 2014-11-28 | The synchronous method and system of communicating data in network switching process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104378819A true CN104378819A (en) | 2015-02-25 |
| CN104378819B CN104378819B (en) | 2017-11-17 |
Family
ID=52557394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410708294.3A Active CN104378819B (en) | 2014-11-28 | 2014-11-28 | The synchronous method and system of communicating data in network switching process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104378819B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105611578A (en) * | 2015-10-29 | 2016-05-25 | 东莞酷派软件技术有限公司 | Network switching method and system during conversation service processing |
| CN112002333A (en) * | 2019-05-07 | 2020-11-27 | 海能达通信股份有限公司 | Voice synchronization method and device and communication terminal |
| WO2022241606A1 (en) * | 2021-05-17 | 2022-11-24 | 海能达通信股份有限公司 | Network switching method and related apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080089289A1 (en) * | 2006-10-16 | 2008-04-17 | Ranjith Jayaram | Method and apparatus for time-warping packets at the sender side |
| CN102123131A (en) * | 2010-01-08 | 2011-07-13 | 中兴通讯股份有限公司 | Method and system for maintaining continuity of stream media service |
| CN104038974A (en) * | 2014-06-11 | 2014-09-10 | 中国联合网络通信集团有限公司 | Method and device for processing voice service |
-
2014
- 2014-11-28 CN CN201410708294.3A patent/CN104378819B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080089289A1 (en) * | 2006-10-16 | 2008-04-17 | Ranjith Jayaram | Method and apparatus for time-warping packets at the sender side |
| CN102123131A (en) * | 2010-01-08 | 2011-07-13 | 中兴通讯股份有限公司 | Method and system for maintaining continuity of stream media service |
| CN104038974A (en) * | 2014-06-11 | 2014-09-10 | 中国联合网络通信集团有限公司 | Method and device for processing voice service |
Non-Patent Citations (1)
| Title |
|---|
| WEI-KUO CHIANG等: "Network-Based Handover for IMS Service Continuity", 《 INFORMATION SCIENCE AND APPLICATIONS (ICISA), 2014 INTERNATIONAL CONFERENCE ON》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105611578A (en) * | 2015-10-29 | 2016-05-25 | 东莞酷派软件技术有限公司 | Network switching method and system during conversation service processing |
| CN105611578B (en) * | 2015-10-29 | 2019-04-12 | 东莞酷派软件技术有限公司 | Handle the method for switching network and network switching system when talk business |
| CN112002333A (en) * | 2019-05-07 | 2020-11-27 | 海能达通信股份有限公司 | Voice synchronization method and device and communication terminal |
| CN112002333B (en) * | 2019-05-07 | 2023-07-18 | 海能达通信股份有限公司 | Voice synchronization method and device and communication terminal |
| WO2022241606A1 (en) * | 2021-05-17 | 2022-11-24 | 海能达通信股份有限公司 | Network switching method and related apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104378819B (en) | 2017-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10893474B2 (en) | Communications method and apparatus | |
| KR100601886B1 (en) | Method for controlling handover between a different kind of network | |
| EP3041286B1 (en) | Communication switching and establishing method and device | |
| US8442532B2 (en) | System and method of handling IP layer mobility in a wireless network | |
| JP6683713B2 (en) | Redundant links for reliable communication | |
| JP4676534B2 (en) | Traffic generation in the inactive user plane | |
| KR20150111660A (en) | Apparatus and method for serving voice in a wireless network | |
| CN101554017A (en) | Method and apparatus for transmitting data using information on communication environment | |
| US11751096B2 (en) | Congestion control method and device, and base station | |
| CN111294870A (en) | Voice service switching method, device and storage medium | |
| CN105611578A (en) | Network switching method and system during conversation service processing | |
| CN104378819A (en) | Method and system for call data synchronization during network switching | |
| WO2017014923A1 (en) | Loop detection/resolution and load balancing on dual band dual concurrent repeater | |
| CN103118098A (en) | Forecast based multi-connection mobile terminal interface switching method | |
| CN109121175B (en) | Handover method, system and computer-readable storage medium for NB-IoT terminal | |
| CN113163445A (en) | Method and apparatus for inter-user equipment communication | |
| US20130100821A1 (en) | Voice Call Handover | |
| CN101094441A (en) | Method for processing error of node supported by gateway in packet domain | |
| US8265662B1 (en) | Data mode paging in wireless communication networks | |
| CN101729518B (en) | Method and system for realizing fault protection in MBMS transmission process | |
| CN101674664A (en) | Method and network system for user plane data transmission | |
| CN101472302B (en) | Method and device for switching business | |
| CN101631368A (en) | Cell switching method, cell switching device and cell switching system based on GSM system | |
| JP2017005463A (en) | Radio apparatus and radio communication system | |
| JP2014099743A (en) | Communication apparatus, and control method and program therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |