CN108616558A - Establish the method, apparatus and user equipment of call - Google Patents
Establish the method, apparatus and user equipment of call Download PDFInfo
- Publication number
- CN108616558A CN108616558A CN201611219365.9A CN201611219365A CN108616558A CN 108616558 A CN108616558 A CN 108616558A CN 201611219365 A CN201611219365 A CN 201611219365A CN 108616558 A CN108616558 A CN 108616558A
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- Prior art keywords
- tcp
- message
- network side
- call request
- call
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
Abstract
The present invention provides a kind of method, apparatus and user equipment for establishing call.The method includes：TCP links are established with network side, call request message are sent by network side described in the TCP chains road direction, the call request message establishes call for asking；The resetting RST message of the network side feedback is received, the RST message is abnormal for characterizing the TCP links；It determines that the TCP links are abnormal based on the RST message, re-establishes new TCP links, the call request message is retransmitted by network side described in the new TCP chain road directions.The present invention is used to ensure the dial-up rate of VoLTE calls.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of method, apparatus and user equipment for establishing call.
Background technology
VoLTE (Voice over LTE, the speech business based on LTE network) is a kind of IP (Internet
Protocol, Internet protocol) data transmission technology, it is connect by LTE (Long Term Evolution, long term evolution) network
Enter IMS (IP Multimedia core network Subsystem, IP multimedia core network subsystem) net of operator
Network carries out the business such as voice, video, short message, it can be achieved that data and unification of the speech business under consolidated network.
It supports the terminal of VoLTE in dialing, needs to send invite message to TCP/IP based on IMS protocol stacks
(Transmission Control Protocol/Internet Protocol, transmission control protocol/Internet Protocol)
Protocol stack.Because the reasons such as network or bottom are abnormal, after invite message is sent to TCP/IP protocol stack, TCP/IP protocol stack may
The notice (RST message, i.e. Reset message) that network disconnects the TCP links is received, invite message can not be sent to called whole
End leads to this time dialing failure.
In the implementation of the present invention, inventor has found at least to have the following technical problems in the prior art：
The dialing success rate for how improving VoLTE is a urgent problem to be solved.
Invention content
The method, apparatus and user equipment provided by the invention for establishing call, can solve how to improve VoLTE dialing at
The problem of power.
In a first aspect, the present invention provides a kind of method for establishing call, the method includes：
Transmission control protocol TCP link is established with network side, sending call by network side described in the TCP chains road direction asks
Message, the call request message is asked to establish call for asking；
The resetting RST message of the network side feedback is received, the RST message is different for characterizing the TCP links generation
Often；
It determines that the TCP links are abnormal based on the RST message, re-establishes new TCP links, by described new
TCP chain road directions described in network side retransmit the call request message.
Optionally, the RST message for receiving the network side feedback, including：It is mutual based on transmission control protocol/internet
Connection agreement ICP/IP protocol stack receives the RST message of the network side feedback, and the RST message is sent to IP multimedia cores
Network subsystem IMS protocol stacks.
Optionally, described to determine that the TCP links are abnormal based on the RST message, re-establish new TCP chains
Road retransmits the call request message by network side described in the new TCP chain road directions, including：
The RST message is received based on the IMS protocol stacks, it is different to determine that the TCP links occur according to the RST message
Often；
TCP request for building link is sent to the ICP/IP protocol stack based on the IMS protocol stacks, the TCP links are built
Vertical request is for establishing the new TCP links；
The call request message is retransmitted to the ICP/IP protocol stack based on the IMS protocol stacks, based on described
ICP/IP protocol stack is retransmitted the call request message to network side by the new TCP links.
Optionally, it is described based on the IMS protocol stacks to the ICP/IP protocol stack send TCP request for building link it
Before, the method further includes：
The response that call request message is waited on the TCP links is checked whether based on the IMS protocol stacks；
It is described that TCP request for building link is sent to the ICP/IP protocol stack based on the IMS protocol stacks, including：
When determining the response for waiting for call request message on the TCP links based on the IMS protocol stacks, to institute
It states ICP/IP protocol stack and sends TCP request for building link.
Optionally, transmission control protocol TCP link is established with network side described, passes through net described in the TCP chains road direction
After network side sends call request message, the method further includes：
Local backup is carried out to the call request message.
Second aspect, the present invention provide a kind of device for establishing call, including：
Sending module passes through net described in the TCP chains road direction for establishing transmission control protocol TCP link with network side
Network side sends call request message, and the call request message is conversed for establishing；
Receiving module, the resetting RST message for receiving the network side feedback, the RST message are described for characterizing
TCP links are abnormal；
The sending module, the RST message for being additionally operable to receive based on the receiving module determine the TCP links hair
It is raw abnormal, new TCP links are re-established, retransmitting the call by network side described in the new TCP chain road directions asks
Seek message.
Optionally, the receiving module, including：
Transmission unit, the RST message for being received the network side feedback based on ICP/IP protocol stack, the RST is disappeared
Breath is sent to IMS protocol stacks.
Optionally, the sending module includes determination unit, establishes unit and transmission unit：
The determination unit is determined for receiving the RST message based on the IMS protocol stacks according to the RST message
The TCP links are abnormal；
It is described to establish unit, it is asked to ICP/IP protocol stack transmission TCP link establishments for being based on the IMS protocol stacks
It asks, the TCP request for building link is for establishing the new TCP links；
The transmission unit, for retransmitting the call to the ICP/IP protocol stack based on the IMS protocol stacks
Request message, the ICP/IP protocol stack are retransmitted the call request message to network by the new TCP links
Side.
Optionally, the sending module further includes：
Inspection unit checks whether that waiting call request disappears on the TCP links for being based on the IMS protocol stacks
The response of breath；
It is described to establish unit, for determining the TCP chains road based on the IMS protocol stacks when the inspection unit
When waiting for the response of call request message, TCP request for building link is sent to the ICP/IP protocol stack.
Optionally, the sending module is additionally operable to establish transmission control protocol TCP chain in the sending module and network side
Road after sending call request message by network side described in the TCP chains road direction, carries out the call request message local
Backup.
The third aspect, the present invention provide a kind of user equipment, and the user equipment includes the device of above-mentioned foundation call.
The method, apparatus and user equipment provided in an embodiment of the present invention for establishing call establishes transmission control with network side
Agreement TCP links send call request message by network side described in the TCP chains road direction；Receive the network side feedback
RST message；It determines that the TCP links are abnormal based on the RST message, re-establishes new TCP links, by described new
TCP chain road directions described in network side retransmit the invite message.Compared with prior art, use is provided in this embodiment
The method, apparatus and user equipment for establishing call, when the TCP links between network side are abnormal, by re-establishing
Network side described in new TCP chain road directions retransmits call request message, VoLTE calls can be re-established, so as to carry
The dialing success rate of high VoLTE calls.
Description of the drawings
Fig. 1 is the flow chart of the method for the foundation call that one embodiment of the invention provides；
Fig. 2 is the flow chart of the method for the foundation call that another embodiment of the present invention provides；
Fig. 3 is the structural schematic diagram of the device for the foundation call that one embodiment of the invention provides；
Fig. 4 is the structural schematic diagram of the device for the foundation call that another embodiment of the present invention provides；
Fig. 5 is the structural schematic diagram of the device for the foundation call that another embodiment of the present invention provides；
Fig. 6 is the structural schematic diagram of the device for the foundation call that another embodiment of the present invention provides.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
It is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
The present invention provides a kind of method for establishing call, as shown in Figure 1, the method includes：
S11, user equipment and network side establish TCP links, and sending call by network side described in the TCP chains road direction asks
(invite) message, the invite message is asked to establish call for asking.
It should be noted that the method provided in this embodiment for establishing call, is suitable for supporting the user equipment of VoLTE
It executes, such as：The terminals such as smart mobile phone, intelligent computer, but it is not limited only to this.
Wherein, the network side can be support VoLTE business core net, generally by common carrier carry out operation and
It safeguards, VoLTE calls can be established between multiple VoLTE user equipmenies.
S12, user equipment receive RST (Reset, resetting) message of the network side feedback, and the RST message is used for table
The TCP links are levied to be abnormal.
Wherein, when the TCP links between user equipment and network side are abnormal, network side can occur to user equipment
RST message, to inform that the current TCP links of user equipment disconnect.
S13, user equipment determine that the TCP links are abnormal based on the RST message, re-establish new TCP chains
Road retransmits the invite message by network side described in the new TCP chain road directions.
It is worth noting that by step S13, when the TCP links disconnection between user equipment and network side causes to dial
When failure, user equipment can send invite message to network side again, calling be re-initiated, in order to be successfully established
VoLTE converses.
The method provided in an embodiment of the present invention for establishing call, when the TCP links between user equipment and network side occur
When abnormal, user equipment can retransmit invite message by re-establishing network side described in new TCP chain road directions, in turn
VoLTE calls are re-established, the percent of call completed of VoLTE calls is improved.
Optionally, the present embodiment also provides a kind of method for establishing call, and this method is suitable for that the user of VoLTE is supported to set
It is standby, for establishing VoLTE talk business.Specifically, the user equipment in the present embodiment includes at least IMS protocol stacks and TCP/IP
Protocol stack.As shown in Fig. 2, the method includes：
S21, IMS protocol stack receive dial instruction.
In general, the dial instruction is triggered by user's operation behavior, alternatively, the dial instruction is by user equipment
Some APP (Application, application program) is triggered, and the present embodiment does not limit this.
S22, IMS protocol stack are based on the dial instruction, and instruction ICP/IP protocol stack establishes TCP links with network side.
S23, IMS protocol stack send invite message to ICP/IP protocol stack, and carry out this to the invite message
It backs up on ground.
In step S23, IMS protocol stacks, can be not available in follow-up TCP links by being backed up to invite message
In the case of, the invite message for directly invoking local backup is retransmitted, and dial instruction is initiated again without user, can
Improve the success rate of subscriber dialing.
S24, ICP/IP protocol stack receive invite message, which is stored in transmit queue, is waited to be sent.
It is worth noting that the method provided in this embodiment for establishing call, is mainly used for solving when the generation of TCP links is different
Often result in the problem of invite message sends failure.Specifically, when TCP links are abnormal, following steps are executed：
S25, ICP/IP protocol stack are before sending invite message, because of Network Abnormal, ICP/IP protocol stack receives net
The RST message that network side is sent.
Wherein, the TCP links that RST message is used to characterize in step S22 are abnormal.
The RST message is sent to IMS protocol stacks by S26, ICP/IP protocol stack.
S27, IMS protocol stack receive the RST message, determine that the TCP links are abnormal according to the RST message.
S28, IMS protocol stack check whether the response that invite message is waited on the TCP links；As the IMS
When protocol stack determines the response for waiting for invite message on the TCP links, TCP chains are sent to the ICP/IP protocol stack
Request is established on road.
It is worth noting that by step S28, since the TCP links are abnormal and are currently at the TCP
The response that invite message is waited on link may further determine that the TCP links cannot achieve VoLTE calls, need
Re-establish new TCP links.
S29, ICP/IP protocol stack receive the TCP request for building link, and new TCP links are established with network side.
S30, IMS protocol stack retransmit the invite message to the ICP/IP protocol stack.
S31, the ICP/IP protocol stack are retransmitted the invite message to network by the new TCP links
Side.
After network side receives the invite message, if the new TCP links can be used normally, after
It is continuous to be successfully established VoLTE calls.If the new TCP links break down, the present embodiment is re-executed, passes through weight
It builds TCP links and retransmits invite message to establish VoLTE calls, until successfully realizing that VoLTE converses.
Optionally, after IMS protocol stacks receive response of the network side to the invite message, local backup is deleted
Invite message, to save storage resource.
Using the method provided in this embodiment for establishing call, when between user equipment and network side due to Network Abnormal,
When VoLTE calls being caused to establish failure, by re-establishing new TCP links, and invite instructions are retransmitted, to succeed
Establish VoLTE calls.Compared with prior art, using the method provided in this embodiment for establishing call, in the feelings of Network Abnormal
When condition occurs, dial instruction is repeatedly triggered without user can be successfully established VoLTE calls, can effectively ensure that VoLTE converses
Percent of call completed.
The embodiment of the present invention also provides a kind of device for establishing call, as shown in figure 3, described device includes：
Sending module 31, for establishing transmission control protocol TCP link with network side, described in the TCP chains road direction
Network side sends call request message, and the call request message is conversed for establishing；
Receiving module 32, the resetting RST message for receiving the network side feedback, the RST message is for characterizing institute
TCP links are stated to be abnormal；
The sending module 31, the RST message for being additionally operable to receive based on the receiving module 32 determine the TCP chains
Road is abnormal, and re-establishes new TCP links, is retransmitted by network side described in the new TCP chain road directions described logical
Talk about request message.
Optionally, as shown in figure 4, the receiving module 32 includes：
Transmission unit 321, the RST message for receiving the network side feedback based on ICP/IP protocol stack, by the RST
Message is sent to IMS protocol stacks.
Optionally, as shown in figure 5, the sending module 31 includes：
Determination unit 311 is determined for receiving the RST message based on the IMS protocol stacks according to the RST message
The TCP links are abnormal；
Unit 312 is established, is asked to ICP/IP protocol stack transmission TCP link establishments for being based on the IMS protocol stacks
It asks, the TCP request for building link is for establishing the new TCP links；
Transmission unit 313 is asked for being based on the IMS protocol stacks to the ICP/IP protocol stack retransmission call
Message, the ICP/IP protocol stack is asked to retransmit the call request message to network side by the new TCP links.
Optionally, as shown in fig. 6, the sending module 31 further includes：
Inspection unit 314 checks whether that waiting call is asked on the TCP links for being based on the IMS protocol stacks
Ask the response of message；
It is described to establish unit 312, for determining the TCP based on the IMS protocol stacks when the inspection unit 314
When waiting for the response of invite message on link, TCP request for building link is sent to the ICP/IP protocol stack.
Optionally, the sending module 31 is additionally operable to establish TCP links in the sending module 31 and network side, pass through
After network side described in the TCP chains road direction sends call request message, local backup is carried out to the call request message.
The device provided in an embodiment of the present invention for establishing call, when between described device and network side due to Network Abnormal,
When VoLTE calls being caused to establish failure, by re-establishing new TCP links, and invite instructions are retransmitted, to succeed
Establish VoLTE calls.Compared with prior art, using the device provided in this embodiment for establishing call, in the feelings of Network Abnormal
When condition occurs, dial instruction is repeatedly triggered without user can be successfully established VoLTE calls, can effectively ensure that VoLTE converses
Percent of call completed.
The embodiment of the present invention also provides a kind of user equipment, and the user equipment includes establishing to lead to shown in above-mentioned Fig. 3 to Fig. 6
The device of words.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer read/write memory medium
In, the program is when being executed, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, all answer by the change or replacement that can be readily occurred in
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (11)
1. a kind of method for establishing call, which is characterized in that including：
Transmission control protocol TCP link is established with network side, sending call request by network side described in the TCP chains road direction disappears
Breath, the call request message establish call for asking；
The resetting RST message of the network side feedback is received, the RST message is abnormal for characterizing the TCP links；
It determines that the TCP links are abnormal based on the RST message, re-establishes new TCP links, by described new
Network side described in TCP chain road directions retransmits the call request message.
2. according to the method described in claim 1, it is characterized in that, the RST message for receiving the network side feedback, packet
It includes：
The RST message that the network side feedback is received based on transmission control protocol/Internet Protocol ICP/IP protocol stack, will
The RST message is sent to IP multimedia core network subsystem IMS protocol stacks.
3. according to the method described in claim 2, it is characterized in that, described determine that the TCP links are sent out based on the RST message
It is raw abnormal, new TCP links are re-established, retransmitting the call by network side described in the new TCP chain road directions asks
Message is sought, including：
The RST message is received based on the IMS protocol stacks, determines that the TCP links are abnormal according to the RST message；
TCP request for building link is sent to the ICP/IP protocol stack based on the IMS protocol stacks, the TCP link establishments are asked
It asks for establishing the new TCP links；
The call request message is retransmitted to the ICP/IP protocol stack based on the IMS protocol stacks, is based on the TCP/
IP protocol stack is retransmitted the call request message to network side by the new TCP links.
4. according to the method described in claim 3, it is characterized in that, being based on the IMS protocol stacks to the TCP/IP described
Before protocol stack sends TCP request for building link, the method further includes：
The response that call request message is waited on the TCP links is checked whether based on the IMS protocol stacks；
It is described that TCP request for building link is sent to the ICP/IP protocol stack based on the IMS protocol stacks, including：
When determining the response for waiting for call request message on the TCP links based on the IMS protocol stacks, to described
ICP/IP protocol stack sends TCP request for building link.
5. according to the method described in claim 1, it is characterized in that, establishing transmission control protocol TCP chain with network side described
Road, after sending call request message by network side described in the TCP chains road direction, the method further includes：
Local backup is carried out to the call request message.
6. a kind of device for establishing call, which is characterized in that including：
Sending module passes through network side described in the TCP chains road direction for establishing transmission control protocol TCP link with network side
Call request message is sent, the call request message is conversed for establishing；
Receiving module, the resetting RST message for receiving the network side feedback, the RST message is for characterizing the TCP chains
Road is abnormal；
The sending module, it is different that the RST message for being additionally operable to receive based on the receiving module determines that the TCP links occur
Often, new TCP links are re-established, retransmitting the call request by network side described in the new TCP chain road directions disappears
Breath.
7. device according to claim 6, which is characterized in that the receiving module includes：
Transmission unit, the RST message for being received the network-side feedback based on ICP/IP protocol stack, the RST message is sent out
Give IMS protocol stacks.
8. device according to claim 7, which is characterized in that the sending module includes：
Determination unit determines the TCP for receiving the RST message based on the IMS protocol stacks according to the RST message
Link is abnormal；
Unit is established, it is described for sending TCP request for building link to the ICP/IP protocol stack based on the IMS protocol stacks
TCP request for building link is for establishing the new TCP links；
Transmission unit, for retransmitting the call request message to the ICP/IP protocol stack based on the IMS protocol stacks,
The ICP/IP protocol stack is retransmitted the call request message to network side by the new TCP links.
9. device according to claim 8, which is characterized in that the sending module further includes：
Inspection unit waits for call request message for being checked whether based on the IMS protocol stacks on the TCP links
Response；
It is described to establish unit, it is determined based on the IMS protocol stacks for working as the inspection unit and is waited on the TCP links
When the response of call request message, TCP request for building link is sent to the ICP/IP protocol stack.
10. device according to claim 6, which is characterized in that the sending module, be additionally operable to the sending module with
Network side establishes transmission control protocol TCP link, by network side described in the TCP chains road direction send call request message it
Afterwards, local backup is carried out to the call request message.
11. a kind of user equipment, which is characterized in that the user equipment includes as described in any one of claim 6 to 10
Establish the device of call.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611219365.9A CN108616558B (en) | 2016-12-26 | 2016-12-26 | Method and device for establishing call and user equipment |
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|---|---|---|---|
| CN201611219365.9A CN108616558B (en) | 2016-12-26 | 2016-12-26 | Method and device for establishing call and user equipment |
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| CN108616558B CN108616558B (en) | 2021-03-19 |
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| CN201611219365.9A Active CN108616558B (en) | 2016-12-26 | 2016-12-26 | Method and device for establishing call and user equipment |
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| CN108616558B (en) | 2021-03-19 |
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