CN107786509A - Conversation message processing method and relevant apparatus - Google Patents
Conversation message processing method and relevant apparatus Download PDFInfo
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- CN107786509A CN107786509A CN201610743186.9A CN201610743186A CN107786509A CN 107786509 A CN107786509 A CN 107786509A CN 201610743186 A CN201610743186 A CN 201610743186A CN 107786509 A CN107786509 A CN 107786509A
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- layer protocol
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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
- H04L65/1066—Session management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1046—Call controllers; Call servers
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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
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1104—Session initiation protocol [SIP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/165—Combined use of TCP and UDP protocols; selection criteria therefor
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Abstract
The embodiment of the present application discloses conversation message processing method and relevant apparatus and system.A kind of conversation message processing method includes：User terminal is when for example calling or the renewal that conversates is initiated, call conversation control function entity receives the sip request message for carrying out user terminal, the header field of the sip request message carries at least two transport layer protocols mark, the represented at least two transport layer protocols sip response message corresponding to the transmission sip request message of at least two transport layer protocols mark allows the transport layer protocol used, and the CSCF entities select to send the transport layer protocol that the sip response message will use from least two transport layer protocol；The CSCF entities send the sip response message using the transport layer protocol of the selection to the user terminal.The embodiment of the present application scheme advantageously reduces conversation failure probability and lifts user's communication experiences.
Description
Technical field
The application is related to communication technical field, has specifically related generally to conversation message processing method and relevant apparatus and has been
System.
Background technology
At present, Wifi (Wireless Fidelity) access points are largely disposed and applied.Operator starts depth ploughing and weeding related service,
VoWifi (Voice overWifi, the voice based on Wifi) business is exactly arisen at the historic moment under this background.
Such as the associated session of VoWifi business is typically based on SIP (Session Initiation Protocol, session
Initiation protocol) establish.SIP is application layer protocol, and the SIP of interaction disappears between call conversation control function entity and user terminal
Breath be divided into request message and response message both.
In the conventional technology, for example, VoWifi business sip response message there may come a time when can by such as Wifi access points this
A little probability discardings of intermediate equipment, cause such as VoWifi service conversations failure, and the appearance of such case is by considerable influence user
Communication experiences.
The content of the invention
The embodiment of the present application conversation message processing method and relevant apparatus and system.
First aspect of the embodiment of the present invention provides a kind of conversation message processing method, and (conversation message processing method is for for example
The IP telephone services such as VoWifi business), including：User terminal is exhaled when for example calling or the renewal that conversates is initiated
The SIP for making the reception of conversation control function (CSCF, Call Session Control Function) entity carry out user terminal please
Message is sought, wherein, the header field of the sip request message carries at least two transport layer protocols mark, wherein, described at least two
At least two represented transport layer protocols of transport layer protocol mark disappear for sip response corresponding to the transmission sip request message
Breath allows the transport layer protocol used, and the CSCF entities are selected from least two transport layer protocol described in transmission
The transport layer protocol that sip response message will use；The CSCF entities are using the transport layer protocol of the selection to the user
Terminal sends the sip response message.
Wherein, by the user terminal that the header field of the sip request message carries accesses the network type mark of network
Identified for network type corresponding to Wifi networks, this means that sip request message is that the associated session for being directed to VoWifi business disappears
Breath.
As can be seen that being directed to the IP telephone service scene such as VoWifi business, the embodiment of the present invention is introduced on passing
The negotiation mechanism of transport layer protocol used in defeated sip response message, user terminal and CSCF entities can be consulted to pass to a certain extent
Transport layer protocol used in defeated sip response message, specifically, CSCF entities can flexibly selection passes in the range of user terminal support
Transport layer protocol used in defeated sip response message, this just relieves sip request message and keeps transport layer protocol with sip response message
Uniformity limitation, because CSCF entities have a certain degree of right to choose, be so more beneficial for CSCF entity selections with work as
The transport layer protocol that preceding situation more matches transmits sip response message, and then advantageously reduces sip response message by such as Wifi
The probability of the probability discarding of these intermediate equipments of access point, and then advantageously reduce such as VoWifi business etc. IP telephone service
Conversation failure probability, and then be advantageous to lift user's communication experiences.
Second aspect of the embodiment of the present invention provides a kind of CSCF entities, including：
Receiving unit, the sip request message of user terminal is carried out for receiving, and the header field of the sip request message carries
At least two transport layer protocols identify, and at least two represented transport layer protocols of at least two transport layer protocols mark are
Sip response message corresponding to transmitting the sip request message allows the transport layer protocol used；
Selecting unit, for selecting the transmission sip response message to use from least two transport layer protocol
Transport layer protocol；
Transmitting element, for using described in the transport layer protocol that the selecting unit selects to user terminal transmission
Sip response message.
The third aspect of the embodiment of the present invention provides a kind of CSCF entities, including：Memory, communication interface and with the storage
Device and the processor of communication interface coupling；Wherein, by calling the instruction stored in the memory or code, the processing
Device is used to perform following steps：
By communication interface reception come the sip request message of user terminal, the header field of the sip request message carry to
Few two transport layer protocols mark, at least two represented transport layer protocols of at least two transport layer protocols mark are to pass
Sip response message corresponding to the defeated sip request message allows the transport layer protocol used, the head of the sip request message
The network type that the user terminal that domain carries accesses network is identified as network type mark corresponding to Wireless Fidelity (Wifi) network
Know；
Selection sends the transport layer protocol that the sip response message will use from least two transport layer protocol；
The sip response message is sent to the user terminal by communication interface using the transport layer protocol of selection.
Wherein, in the scheme that aspects above of the present invention provides, for example, the sip request message is invitation
(Invite) message, the sip response message are sip response message corresponding to Invite message.In another example the SIP request disappears
Cease to invite (update) message, the sip response message is sip response message corresponding to update message.The and for example SIP
Request message is information (message) message, and the sip response message is sip response message corresponding to message message.Again
Such as the sip request message is that Temporary Response confirms (PRACK, Provisional ResponseACKnowledgement)
Message, the sip response message are sip response message corresponding to PRACK message.
Specifically for example, at least two transport layer protocol mark can be carried on the via header fields of the sip request message
Or other header fields.Specifically for example, the network type mark that user terminal accesses network (such as Wifi networks) can for example carry
In Paccess network ID header fields or other header fields.
CSCF entities for example can select to send based on a variety of possible strategies from least two transport layer protocol
The transport layer protocol that the sip response message will use.
For example, the selection from least two transport layer protocol, which will send the sip response message, to use
Transport layer protocol may include：According to the application layer length of sip response message corresponding to the sip request message, from it is described to
Selection sends the transport layer protocol that the sip response message will use in few two kinds of transport layer protocols.
For concrete example, when at least two transport layer protocol mark include transmission control protocol (TCP) mark with
UDP (UDP) identifies, the application layer length of the sip response message according to corresponding to the sip request message,
Selection sends the transport layer protocol that the sip response message will use from least two transport layer protocol, including：Work as institute
The application layer length for stating sip response message is more than length threshold, then TCP conducts are selected from least two transport layer protocol
Send the transport layer protocol that the sip response message will use；When the application layer length of the sip response message is less than or equal to
The length threshold, then UDP will be selected from least two transport layer protocol as the sip response message is sent to use
Transport layer protocol.
The Value space of the length threshold is, for example, between the byte of 800 bytes~1500.
Further, CSCF entities can be in the range of user terminal support, the application layer length based on sip response message
To select to transmit the transport layer protocol of sip response message, application layer length and the transmission of sip response message are so advantageously allowed
Layer protocol more matches, and then advantageously reduces sip response message by the probability discarding of these intermediate equipments of Wifi access points
Probability, and then VoWifi service conversations failure probability is advantageously reduced, and then be advantageous to lift user's communication experiences.
Again for example, the selection from least two transport layer protocol, which will send the sip response message, to make
Transport layer protocol includes：According to current network transmission quality grade, hair is selected from least two transport layer protocol
The transport layer protocol for sending the sip response message to use.
Wherein, for concrete example, when at least two transport layer protocol mark includes TCP marks and UDP marks；Institute
State according to current network transmission quality grade, the selection transmission sip response message from least two transport layer protocol
The transport layer protocol that will be used, it may include：When current network transmission quality grade is less than grade threshold, passed from described at least two
The transport layer protocol for selecting TCP to be used as the transmission sip response message in defeated layer protocol；When current network transmission quality
Grade is more than or equal to grade threshold, then UDP is selected from least two transport layer protocol as the transmission sip response
The transport layer protocol that message will use.
Further, CSCF entities can be in the range of user terminal support, based on current network transmission quality grade
To select to transmit the transport layer protocol of sip response message, so, advantageously allow current network transmission quality grade and rung with SIP
Answer the transport layer protocol of message more to match, and then advantageously reduce sip response message by such as Wifi access points in these
Between the probability discarding of equipment probability, and then advantageously reduce the IP telephone service conversation failure probability such as VoWifi business,
And then it is also beneficial to lift user's communication experiences.
Fourth aspect present invention provides a kind of communication system, it is characterised in that including：Such as provided in an embodiment of the present invention
Anticipate a kind of CSCF entities.
In addition, the aspect of the embodiment of the present application the 5th provides a kind of computer-readable recording medium, it is described computer-readable
Storage medium stores the program code for conversation message processing.Described program code includes being used to perform in first aspect
The instruction of method.
The aspect of the embodiment of the present application the 6th additionally provides a kind of conversation message processing unit.The conversation message processing unit
Including unit be able to carry out method in first aspect.
Brief description of the drawings
, below will be attached to what is used needed for embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the present application
Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present application, for this area
For those of ordinary skill, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1-A~Fig. 1-B are the schematic diagram for 2 kinds of network architectures that the embodiment of the present application provides；
Fig. 2 is a kind of schematic flow sheet of conversation message processing method provided in an embodiment of the present invention；
Fig. 3 is a kind of schematic flow sheet of conversation message processing method provided in an embodiment of the present invention；
Fig. 4 is a kind of schematic flow sheet of conversation message processing method provided in an embodiment of the present invention；
Fig. 5 is a kind of structural representation of CSCF entities provided in an embodiment of the present invention；
Fig. 6 is the structural representation of another CSCF entities provided in an embodiment of the present invention.
Embodiment
The term " comprising " and " having " occurred in present specification, claims and accompanying drawing and their any changes
Shape, it is intended that cover non-exclusive include.Such as contain the process of series of steps or unit, method, system, product or
The step of equipment is not limited to list or unit, but alternatively also include the step of not listing or unit, or it is optional
Ground is also included for the intrinsic other steps of these processes, method, product or equipment or unit.In addition, term " first ", " the
Two " and " the 3rd " etc. are for distinguishing different objects, and are not intended to describe specific order.
Fig. 1-A are a kind of group-network constructions provided in an embodiment of the present invention, are related to user terminal, Wifi access points and CSCF
(Call Session Control Function, CSCF) entity etc..Under VoWifi business scenarios, use
The sip message of family terminal and CSCF entity direct interactions will pass through the transfer of these intermediate equipments of Wifi access points.Referring to Fig. 1-
B, the CSCF entities that the embodiment of the present application refers to for example can be PCSCF (Proxy CSCF, proxy CSCF) entity, ICSCF
(Interrogating CSCF, inquiring about CSCF) entity or SCSCF (Serving CSCF, serving CSCF).Wherein, Fig. 1-A
With 1-B figures using Wifi access points as the network access equipment of user terminal exemplified by, and in other scene lower network access devices
It can also be other equipment.
It is appreciated that the product form of the user terminal of the present embodiment for example can be tablet personal computer, notebook computer, shifting
Move the product form of internet device, palm PC, desktop computer, mobile phone or other users terminal.
The present inventor is by numerous studies and puts into practice discovery, sip request message and corresponding SIP in conventional art
Response message generally use identical traffic layer protocol transmits, such as when the transport layer protocol that sip request message uses is UDP
(User Datagram Protocol, UDP), then corresponding sip response message transmits also by UDP, i.e.,
The uniformity of transport layer protocol used in sip request message and corresponding sip response message.However, sip request message and corresponding
The coherence request of transport layer protocol used in sip response message so that CSCF entities are lost used in transmission sip response message
The flexible right to choose of transport layer protocol, this causes sometimes to transmit transport layer protocol used in sip response message can not be with
The present situation is preferably matched, and then sip response message may be caused to there may come a time when by such as these intermediate equipments of Wifi access points
Probability discarding.
Sometimes no more than length threshold, (length threshold is, for example, 1300 words to sip request message length (application layer length)
Section), therefore sip request message is transmitted using UDP, but the length (application layer length) of corresponding sip response message exceedes
Length threshold, if corresponding sip response message is continuing with UDP to transmit, the sip response of length threshold is exceeded for length
Related IP (Internet Protocol, iso-ip Internetworking protocol ISO-IP) burst of message, such as VoWifi business scenarios, just have
May be by the probabilistic discarding of these intermediate equipments of Wifi access points, and this results in the probability failure of VoWifi service conversations
And by considerable influence user's communication experiences, and Wifi access points make it difficult to correct for bulk device.
Scheme of the embodiment of the present invention is described below, and how the improvement to traditional scheme defect solves.
Referring to Fig. 2, Fig. 2 is a kind of flow signal for conversation message processing method that one embodiment of the present of invention provides
Figure, as shown in Fig. 2 citings, a kind of conversation message processing method that one embodiment of the present of invention provides may include：
201st, user terminal sends sip request message.
Wherein, the header field (such as via header fields) of the sip request message carries at least two transport layer protocols mark, institute
At least two represented transport layer protocols of at least two transport layer protocols mark are stated to transmit corresponding to the sip request message
Sip response message allows the transport layer protocol used.
Optionally, the header field (such as network access Identifier (Paccess network ID) header field) of the sip request message
The network type that the user terminal of carrying accesses network is identified as network type mark corresponding to Wifi networks.The SIP please
The Paccess network ID header fields of message are asked to carry network type mark corresponding to Wifi networks, then to mean that session disappears
Breath processing method is the conversation message processing method for Vowifi business, and the sip request message is to be directed to Vowifi business
Sip request message.Can be by that analogy for other business scenarios.
202nd, the network access equipment (such as Wifi access points etc.) that the user terminal is accessed receives and comes from the use
The sip request message of family terminal, the network access equipment (such as Wifi access points) forward the SIP please to network side
Seek message.
203rd, CSCF entities receive the sip request message from the user terminal.The CSCF entities are from described
Selection sends the transport layer protocol that the sip response message will use at least two transport layer protocols.
Wherein, header field (such as via header field) of the CSCF entities based on the sip request message carries described at least two
Transport layer protocol identifies, and learns that the user terminal supports transport layer association used in sip request message and corresponding sip response message
The inconsistency of view, i.e. the user terminal is supported the host-host protocol for transmitting sip response message being replaced by different from transmission pair
Transport layer protocol used in the sip request message answered.
Specifically for example, it is assumed that transmission sip request message uses UDP, and sip response message corresponding to transmitting can be used
TCP or other transport layer protocols can also be used in UDP, in another example assume that transmission sip request message uses TCP, and transmit pair
The sip response message answered can be used UDP that TCP or other transport layer protocols can also be used.This mechanism, relieve SIP request and disappear
The consistency constraint of transport layer protocol used in breath and corresponding sip response message, CSCF entities have a certain degree of flexibly choosing
The power of selecting, not necessarily reference transmission corresponds to used in sip request message transport layer protocol used in transmission sip response message
Transport layer protocol.
For example, it is by the transport layer protocol used when the CSCF entity selections send the sip response message
TCP, then the TCP connections that the CSCF entities can be established between the CSCF entities and the user terminal.
204th, the CSCF entities send the sip response using the transport layer protocol of the selection to the user terminal
Message.
205th, the network access equipment (such as Wifi access points) receives the sip response from CSCF entities and disappeared
Breath, the network access equipment forward the sip response message from CSCF entities to the user terminal.Accordingly, institute
State user terminal and receive the sip response message from the CSCF entities.
For example, for the sip request message to invite (Invite) message, the sip response message is described
200OK message corresponding to Invite message；Or the sip request message is to update (update) message, the sip response
Message is 200OK message corresponding to the update message；Or the sip request message is information (message) message, institute
It is 200OK message corresponding to the message message to state sip response message；Or the sip request message confirms for Temporary Response
(PRACK) message, the sip response message are 200OK message corresponding to the PRACK message.Certainly, the SIP request disappears
Breath and the sip response message are also likely to be the sip message of other pairings.
As can be seen that being directed to the IP telephone service scene such as VoWifi business, the embodiment of the present invention is introduced on passing
The negotiation mechanism of transport layer protocol used in defeated sip response message, user terminal and CSCF entities can be consulted to pass to a certain extent
Transport layer protocol used in defeated sip response message, specifically, CSCF entities can flexibly select in the range of user terminal support
Transport layer protocol used in sip response message is transmitted, this just relieves sip request message and keeps transport layer association with sip response message
The limitation of the uniformity of view, because CSCF entities have a certain degree of right to choose, be so more beneficial for CSCF entity selections with
The transport layer protocol that the present situation more matches transmits sip response message, and then advantageously reduces sip response message by for example
The probability of the probability discarding of these intermediate equipments of Wifi access points, and then advantageously reduce the IP phone industry such as VoWifi business
Business conversation failure probability, and then be advantageous to lift user's communication experiences.
Referring to Fig. 3, Fig. 3 is that the flow for another conversation message processing method that an alternative embodiment of the invention provides is shown
It is intended to, the present embodiment conversation message processing method is that other IP telephone service scenes can be with such for VoWifi business scenarios
Push away.As shown in Fig. 3 citings, another conversation message processing method that an alternative embodiment of the invention provides may include：
301st, user terminal access Wifi access points.
302nd, user terminal sends Invite message to initiate to establish VoWifi service conversations.
The via header fields of the Invite message carry TCP marks and UDP marks etc., the TCP marks and UDP marks
The transport layer that represented two kinds of transport layer protocols 200OK message corresponding to the transmission Invite message allows to use is assisted
View.
Wherein, the user terminal that the Paccess network ID header fields of the Invite message carry accesses network
Network type is identified as network type corresponding to Wifi networks and identified.This means that Invite message for VoWifi business
Associated session message.
303rd, the Wifi access points receive the Invite message from the user terminal.The Wifi access points
The Invite message is forwarded to network side.
Accordingly, PCSCF entities receive the Invite message from the user terminal.
Via header field of the PCSCF entities based on the Invite message carries the TCP marks and UDP marks, learns
The user terminal supports the inconsistency of transport layer protocol used in Invite message and corresponding 200OK message, i.e. the use
Family terminal supports that the host-host protocol that transmit 200OK message can be replaced by different from used in Invite message corresponding to transmission
Transport layer protocol.
Specifically for example, it is assumed that transmission Invite message uses UDP, and transmit 200OK message and UDP can be used also to make
With TCP or other transport layer protocols, in another example hypothesis transmission Invite message uses TCP, and 200OK corresponding to transmitting disappears
Breath can be used UDP that TCP or other transport layer protocols can also be used.This mechanism, relieve Invite message and corresponding 200OK
The consistency constraint of transport layer protocol used in message, transport layer protocol used in 200OK message is transmitted not necessarily with reference to biography
Transport layer protocol used in Invite message corresponding to defeated.
304th, the PCSCF entities judge whether the application layer length of 200OK message corresponding to the Invite message is big
In length threshold.
If so, then perform step 305.
If not, perform step 306.
The Value space of the length threshold is, for example, between the byte of 800 bytes~1500.
Such as length threshold be 1500 bytes, 1300 bytes, 1295 bytes, 1250 bytes, 1000 bytes or 800 bytes or
Other length.
Wherein, due to the application layer sharpness of border of 200OK message corresponding to the Invite message, therefore PCSCF entities
It can be obtained based on the application layer border of 200OK message corresponding to the Invite message corresponding to the Invite message
The application layer length of 200OK message.
305th, the TCP connections that the PCSCF entities can be established between the PCSCF entities and the user terminal.Institute
PCSCF entities are stated to connect to 200OK message corresponding to the user terminal transmission Invite message using the TCP.
306th, the PCSCF entities are disappeared using 200OK corresponding to UDP to the user terminal transmission Invite message
Breath.
It is described when the application layer length of 200OK message corresponding to the Invite message is more than length threshold for sum up
The transport layer protocol that CSCF entity selections TCP will use as 200OK message corresponding to the transmission Invite message.When described
The application layer length of 200OK message corresponding to Invite message is less than or equal to length threshold, and the CSCF entity selections UDP makees
The transport layer protocol that will be used for 200OK message corresponding to the transmission Invite message.
307th, the Wifi access points receive 200OK message corresponding to the Invite message from PCSCF entities, institute
State 200OK message corresponding to Wifi access points to the Invite message of the user terminal forwarding from PCSCF entities.
Accordingly, 200OK corresponding to the Invite message of the user terminal reception from the PCSCF entities disappears
Breath.After 200OK message corresponding to the Invite message is received, the user terminal is believed that SIP session establishments are complete
Into subsequently, the user terminal can carry out media data interaction etc. based on the SIP sessions set up.
It is appreciated that being directed to VoWifi business scenarios, in this embodiment scheme, PCSCF entities can be supported in user terminal
In the range of, the application layer length based on sip response message come select transmit sip response message transport layer protocol, so have
Beneficial to causing the application layer length of sip response message more to be matched with transport layer protocol, and then advantageously reduce sip response message
By the probability of the probability discarding of these intermediate equipments of Wifi access points, and then it is several to advantageously reduce the failure of VoWifi service conversations
Rate, and then be advantageous to lift user's communication experiences.
Specifically, due in invite message due to not carrying for describing the related media flow attribute of Vowifi business
Session Description Protocol (SDP, Session Description Protocol) field (Vowifi business phases of SDP field descriptions
The media flow attribute of pass for example may include media content code/decode type, media content type, bandwidth, address and port etc.),
Therefore application layer length and be no more than length threshold, therefore usable UDP is transmitted.But corresponding 200OK message may carry
SDP, therefore application layer length can exceed that length threshold.Now if invite message keeps passing with corresponding 200OK message
The uniformity of defeated layer protocol, then when invite message uses UDP, corresponding 200OK message is also sent using UDP and may
Corresponding IP fragmentation is carried out, and Wifi access points handle often probability of occurrence discarding for the larger or smaller burst of IP layers and asked
Topic.But in this embodiment scheme, the 200OK message that length threshold is exceeded for application layer length is transmitted using TCP, by
The probability reduction for causing in the TCP high reliability the characteristics of 200OK message to be abandoned by Wifi access points these intermediate equipments, and then
VoWifi service conversations failure probability is advantageously reduced, and then is advantageous to lift user's communication experiences.
Referring to Fig. 4, Fig. 4 is that the flow for another conversation message processing method that an alternative embodiment of the invention provides is shown
It is intended to, the present embodiment conversation message processing method is that other IP telephone service scenes can be with such for VoWifi business scenarios
Push away.As shown in Fig. 4 citings, another conversation message processing method that an alternative embodiment of the invention provides may include：
401st, user terminal access Wifi access points.
402nd, user terminal sends Invite message to initiate to establish VoWifi service conversations.
The via header fields of the Invite message carry TCP marks and UDP marks etc., the TCP marks and UDP marks
The transport layer that represented two kinds of transport layer protocols 200OK message corresponding to the transmission Invite message allows to use is assisted
View.
Wherein, the user terminal that the Paccess network ID header fields of the Invite message carry accesses network
Network type is identified as network type corresponding to Wifi networks and identified.This means that Invite message for VoWifi business
Associated session message.
403rd, the Wifi access points receive the Invite message from the user terminal.The Wifi access points
The Invite message is forwarded to network side.
Accordingly, PCSCF entities receive the Invite message from the user terminal.
Via header field of the PCSCF entities based on the Invite message carries the TCP marks and UDP marks, learns
The user terminal supports the inconsistency of transport layer protocol used in Invite message and corresponding 200OK message, i.e. the use
Family terminal supports that the host-host protocol that transmit 200OK message can be replaced by different from used in Invite message corresponding to transmission
Transport layer protocol.
Specifically for example, it is assumed that transmission Invite message uses UDP, and transmit 200OK message and UDP can be used also to make
With TCP or other transport layer protocols, in another example hypothesis transmission Invite message uses TCP, and 200OK corresponding to transmitting disappears
Breath can be used UDP that TCP or other transport layer protocols can also be used.This mechanism, relieve Invite message and corresponding 200OK
The consistency constraint of transport layer protocol used in message, transport layer protocol used in 200OK message is transmitted not necessarily with reference to biography
Transport layer protocol used in Invite message corresponding to defeated.
404th, PCSCF entities judge whether the transmission quality grade of current network is less than credit rating threshold value.
If so, then perform step 405.
If not, perform step 406.
Such as may include excellent, neutralization difference, certain transmission quality grade can also wrap the current network transmission quality grade
Include more grades.Wherein, credit rating threshold value for example can be " excellent " or " in " or other credit ratings.
Wherein, transmission quality lower grade represents that current network transmission quality is poorer.The expression of transmission quality higher grade is worked as
Preceding network transmission quality is more excellent.
In some possible embodiments, PCSCF entities can be according to the time delay of current network and/or packet loss etc. come really
The transmission quality grade of current network is determined, specifically for example, different delay and/or packet loss scope correspond to different transmission qualities etc.
Level, the scope that PCSCF entities can be fallen into according to the time delay of current network and/or packet loss etc., to determine the biography of current network
Transmission quality grade.
405th, the TCP connections that the PCSCF entities can be established between the PCSCF entities and the user terminal.Institute
PCSCF entities are stated to connect to 200OK message corresponding to the user terminal transmission Invite message using the TCP.
406th, the PCSCF entities are disappeared using 200OK corresponding to UDP to the user terminal transmission Invite message
Breath.
It is described when the application layer length of 200OK message corresponding to the Invite message is more than length threshold for sum up
The transport layer protocol that CSCF entity selections TCP will use as 200OK message corresponding to the transmission Invite message.When described
The application layer length of 200OK message corresponding to Invite message is less than or equal to length threshold, and the CSCF entity selections UDP makees
The transport layer protocol that will be used for 200OK message corresponding to the transmission Invite message.
407th, the Wifi access points receive 200OK message corresponding to the Invite message from PCSCF entities, institute
State 200OK message corresponding to Wifi access points to the Invite message of the user terminal forwarding from PCSCF entities.
Accordingly, 200OK corresponding to the Invite message of the user terminal reception from the PCSCF entities disappears
Breath.After 200OK message corresponding to the Invite message is received, the user terminal is believed that SIP session establishments are complete
Into subsequently, the user terminal can carry out media data interaction etc. based on the SIP sessions set up.
It is appreciated that being directed to VoWifi business scenarios, in this embodiment scheme, PCSCF entities can be supported in user terminal
In the range of, the transmission quality grade based on current network come select transmit sip response message transport layer protocol, it is so favourable
In causing the transmission quality grade of current network more to be matched with corresponding transport layer protocol, and then advantageously reduce sip response and disappear
Breath is by the probability of the probability discarding of these intermediate equipments of Wifi access points, and then it is several to advantageously reduce the failure of VoWifi service conversations
Rate, and then be advantageous to lift user's communication experiences.
Specifically, because the transmission quality lower grade in network, Wifi access points abandon the possibility of UDP related data packets
Property is bigger, but in this embodiment scheme, for transmission quality it is junior in the case of use TCP transmission 200OK message, by
The probability reduction for causing in the TCP high reliability the characteristics of 200OK message to be abandoned by Wifi access points these intermediate equipments, and then
VoWifi service conversations failure probability is advantageously reduced, and then is advantageous to lift user's communication experiences.
It is appreciated that Fig. 3 and Fig. 4 are corresponded in embodiment, mainly using sip request message as invitation (Invite) message,
The sip response message be 200OK message corresponding to the Invite message exemplified by, by CSCF entities be PCSCF entities exemplified by
, CSCF is SCSCF or ICSCF, and sip request message can be by that analogy for the situation of other sip request messages.
The relevant apparatus for implementing such scheme is also provided below.
Referring to Fig. 5, the embodiment of the present invention provides a kind of CSCF entities 500, including：
Receiving unit 510, the sip request message for carrying out for receiving user terminal, the header field of the sip request message are taken
The transport layer protocol of band at least two identifies, at least two represented transport layer protocols of at least two transport layer protocols mark
The transport layer protocol for allowing to use for sip response message corresponding to the transmission sip request message.
Selecting unit 520, for selecting the transmission sip response message to make from least two transport layer protocol
Transport layer protocol.
Transmitting element 530, for sending institute to the user terminal using the transport layer protocol that the selecting unit selects
State sip response message.
For example, at least two transport layer protocols mark is carried on the via header fields of the sip request message.Again
For example, the network type mark that user terminal accesses network (such as Wifi networks) can for example be carried on Paccess
Network ID header fields.Identified when the Paccessnetwork ID header fields of message carry network type corresponding to Wifi networks, that
It is the conversation message processing method for Vowifi business to mean that conversation message processing method, and the sip request message is
For the sip request message of Vowifi business.Can be by that analogy for other business scenarios.
For example, to invite (Invite) message, the sip response message disappears the sip request message for Invite
Sip response message corresponding to breath.In another example the sip request message is invites (update) message, the sip response message is
Sip response message corresponding to update message.And for example the sip request message is information (message) message, and the SIP rings
It is sip response message corresponding to message message to answer message.In another example the sip request message confirms for Temporary Response
(PRACK) message, the sip response message are sip response message corresponding to PRACK message.
Optionally, the selecting unit 510 is specifically used for the sip response message according to corresponding to the sip request message
Application layer length, the selection transmission sip response message assists the transport layer used from least two transport layer protocol
View.
Such as at least two transport layer protocols mark includes transmission control protocol (TCP) mark and User Datagram Protocol
(UDP) mark is discussed, the selecting unit 510 is specifically used for：When the application layer length of the sip response message is more than length threshold
Value, then TCP is selected from least two transport layer protocol as the sip response message is sent and assists the transport layer used
View；When the application layer length of the sip response message is less than or equal to the length threshold, then from least two transport layer
The transport layer protocol for selecting UDP to be used as the transmission sip response message in agreement.Such as the codomain of the length threshold
Space is between the byte of 800 bytes~1500.
Optionally, selecting unit 510 can be specifically used for according to current network transmission quality grade, be passed from described at least two
Selection sends the transport layer protocol that the sip response message will use in defeated layer protocol.
For example, at least two transport layer protocols mark includes TCP marks and UDP marks；Selecting unit 520 is specifically used
In：When current network transmission quality grade is less than grade threshold, selection TCP is as hair from least two transport layer protocol
The transport layer protocol for sending the sip response message to use；When current network transmission quality grade is more than or equal to grade threshold,
The transport layer protocol for then selecting UDP to be used as the transmission sip response message from least two transport layer protocol.
As can be seen that being directed to the IP telephone service scene such as VoWifi business, the embodiment of the present invention is introduced on passing
The negotiation mechanism of transport layer protocol used in defeated sip response message, user terminal and CSCF entities 500 can be consulted to a certain extent
Transport layer protocol used in sip response message is transmitted, specifically, CSCF entities 500 can be in the range of user terminal support
Flexibly transport layer protocol used in selection transmission sip response message, thus relieve sip request message and protected with sip response message
The limitation of the uniformity of transport layer protocol is held, because CSCF entities 500 have a certain degree of right to choose, is so more beneficial for
Transport layer protocol that CSCF entities 500 select more to match with the present situation transmits sip response message, and then advantageously reduces
Sip response message is advantageously reduced for example by the probability of such as probability discarding of these intermediate equipments of Wifi access points
VoWifi service conversations failure probability, and then be advantageous to lift user's communication experiences.
Referring to Fig. 6, the embodiment of the present invention also provides a kind of CSCF entities 600, including：
Memory 610, communication interface 620 and the processor 630 coupled with the memory 610 and communication interface 620.Its
In, by calling the instruction stored in the memory or code, the processor is used to perform following steps：Pass through communication
Interface carrys out the sip request message of user terminal, and the header field of the sip request message carries at least two transport layer protocols
Mark, at least two represented transport layer protocols of at least two transport layer protocols mark disappear to transmit the SIP request
Sip response message corresponding to breath allows the transport layer protocol used, selects to send from least two transport layer protocol
The transport layer protocol that the sip response message will use；Using the transport layer protocol of selection by communication interface to the user
Terminal sends the sip response message.
Wherein, in the scheme that each side of the present invention provides, for example, the sip request message is invitation
(Invite) message, the sip response message are sip response message corresponding to Invite message.In another example the SIP request disappears
Cease to invite (update) message, the sip response message is sip response message corresponding to update message.The and for example SIP
Request message is information (message) message, and the sip response message is sip response message corresponding to message message.Again
For example, the sip request message, which is Temporary Response, confirms (PRACK) message, the sip response message corresponds to for PRACK message
Sip response message.
For example, at least two transport layer protocol identifies the via header fields or its that can be carried on the sip request message
His header field.For example, the network type mark that user terminal accesses network can for example be carried on Paccess network ID heads
Domain.When the Paccessnetwork ID header fields of message carry network type mark corresponding to Wifi networks, then mean that session
Message treatment method is the conversation message processing method for Vowifi business, also just means that the sip request message is pin
To the sip request message of Vowifi business.Can be by that analogy for other business scenarios.
As can be seen that being directed to the IP telephone service scene such as VoWifi business, the embodiment of the present invention is introduced on passing
The negotiation mechanism of transport layer protocol used in defeated sip response message, user terminal and CSCF entities 600 can be consulted to a certain extent
Transport layer protocol used in sip response message is transmitted, specifically, CSCF entities 600 can be in the range of user terminal support
Flexibly transport layer protocol used in selection transmission sip response message, thus relieve sip request message and protected with sip response message
The limitation of the uniformity of transport layer protocol is held, because CSCF entities 600 have a certain degree of right to choose, is so more beneficial for
Transport layer protocol that CSCF entities 600 select more to match with the present situation transmits sip response message, and then advantageously reduces
Sip response message is advantageously reduced for example by the probability of such as probability discarding of these intermediate equipments of Wifi access points
VoWifi service conversations failure probability, and then be advantageous to lift user's communication experiences.
The embodiment of the present invention also provides a kind of communication system, including：Any one CSCF provided in an embodiment of the present invention is real
Body and user terminal.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed device, can be by another way
Realize.Such as device embodiment described above is only schematical, such as the division of the unit, only one kind are patrolled
Function division is collected, there can be other dividing mode when actually realizing, such as multiple units or component can be combined or can collected
Into to another system, or some features can be ignored or not perform.It is another, it is shown or discussed mutual indirect
Coupling or direct-coupling or communication connection can be by some interfaces, the INDIRECT COUPLING or communication connection of device or unit,
Can be electrical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the scheme of the present embodiment according to the actual needs
Purpose.
In addition, each functional unit in each embodiment of the application can be integrated in a processing unit or each
Unit is individually physically present, but also two or more units are integrated in a unit.Above-mentioned integrated unit both can be with
Realized, or can also be realized in the form of SFU software functional unit in the form of hardware.
If the integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or use
When, it can be stored in a computer read/write memory medium.Based on such understanding, the technical scheme of the application is substantially
The part to be contributed in other words to prior art or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are causing a computer
Equipment (can be personal computer, server or network equipment etc.) perform each embodiment methods described of the application whole or
Part steps.And foregoing storage medium includes：USB flash disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, RandomAccess Memory), mobile hard disk, magnetic disc or CD etc. are various can be with Jie of store program codes
Matter.
Claims (17)
- A kind of 1. conversation message processing method, it is characterised in that including：CSCF CSCF entities receive the session initiation protocol sip request message for carrying out user terminal, the SIP The header field of request message carries at least two transport layer protocols and identified, represented by least two transport layer protocols mark extremely Few two kinds of transport layer protocols sip response message corresponding to the transmission sip request message allows the transport layer protocol used；The CSCF entities select to send the transmission that the sip response message will use from least two transport layer protocol Layer protocol；The CSCF entities send the sip response message using the transport layer protocol of the selection to the user terminal.
- 2. method according to claim 1, it is characterised in that described to select to send from least two transport layer protocol The sip response message includes the transport layer protocol used：According to sip response message corresponding to the sip request message Application layer length, the selection transmission sip response message assists the transport layer used from least two transport layer protocol View.
- 3. method according to claim 2, it is characterised in that at least two transport layer protocols mark includes transmission control Agreement TCP is identified and UDP UDP marks, the sip response message according to corresponding to the sip request message Application layer length, the selection transmission sip response message assists the transport layer used from least two transport layer protocol View includes：When the application layer length of the sip response message is more than length threshold, then from least two transport layer protocol The transport layer protocol that selection TCP will use as the transmission sip response message；When the application layer of the sip response message is grown Degree is less than or equal to the length threshold, then UDP is selected from least two transport layer protocol as the SIP is sent and is rung The transport layer protocol for answering message to use.
- 4. according to the method for claim 3, it is characterised in that the Value space of the length threshold be 800 bytes~ Between 1500 bytes.
- 5. method according to claim 1, it is characterised in that described to select to send from least two transport layer protocol The sip response message includes the transport layer protocol used：According to current network transmission quality grade, from described at least two Selection sends the transport layer protocol that the sip response message will use in transport layer protocol.
- 6. method according to claim 5, it is characterised in that at least two transport layer protocols mark includes TCP marks Identified with UDP；It is described according to current network transmission quality grade, from least two transport layer protocol selection send the SIP and ring Message is answered to include the transport layer protocol used：When current network transmission quality grade is less than grade threshold, from described at least two The transport layer protocol for selecting TCP to be used as the transmission sip response message in kind transport layer protocol；When current network is transmitted Credit rating is more than or equal to grade threshold, then UDP is selected from least two transport layer protocol as the transmission SIP The transport layer protocol that response message will use.
- 7. according to any one of claim 1 to 6 methods described, it is characterised in that at least two transport layer protocols mark is taken Band is in the via header fields of the sip request message.
- 8. according to any one of claim 1 to 7 methods described, it is characterised in that the access network identity of the sip request message Paccess network ID carry network type mark corresponding to Wireless Fidelity Wifi networks.
- 9. according to any one of claim 1 to 8 methods described, it is characterised in that the sip request message disappears for invitation Invite Breath, renewal update message, information message message or Temporary Response confirm PRACK message.
- A kind of 10. CSCF CSCF entities, it is characterised in that including：Receiving unit is used to receive the session initiation protocol sip request message for carrying out user terminal, the head of the sip request message Domain carries at least two transport layer protocols mark, at least two represented transport layers of at least two transport layer protocols mark Agreement sip response message corresponding to the transmission sip request message allows the transport layer protocol used；Selecting unit, for the biography that the selection transmission sip response message will use from least two transport layer protocol Defeated layer protocol；Transmitting element, rung for sending the SIP to the user terminal using the transport layer protocol that the selecting unit selects Answer message.
- 11. CSCF entities according to claim 10, it is characterised in that the selecting unit is specifically used for according to the SIP The application layer length of sip response message corresponding to request message, from least two transport layer protocol described in selection transmission The transport layer protocol that sip response message will use.
- 12. the CSCF entities according to claim 11, it is characterised in thatAt least two transport layer protocols mark includes transmission control protocol TCP mark and UDP UDP marks, The selecting unit is specifically used for：When the application layer length of the sip response message is more than length threshold, then from described at least two The transport layer protocol for selecting TCP to be used as the transmission sip response message in kind transport layer protocol；When the sip response The application layer length of message is less than or equal to the length threshold, then selects UDP to make from least two transport layer protocol To send the transport layer protocol that the sip response message will use.
- 13. CSCF entities according to claim 12, it is characterised in that the Value space of the length threshold is 800 words Between~1500 bytes of section.
- 14. CSCF entities according to claim 10, it is characterised in that the selecting unit is specifically used for according to current net Network transmission quality grade, the transmission that the selection transmission sip response message will use from least two transport layer protocol Layer protocol.
- 15. CSCF entities according to claim 14, it is characterised in that at least two transport layer protocols mark includes TCP is identified and UDP marks；The selecting unit when current network transmission quality grade specifically for being less than grade threshold, from institute State the transport layer protocol for selecting TCP to be used as the transmission sip response message at least two transport layer protocols；When current Network transmission quality grade is more than or equal to grade threshold, then UDP is selected from least two transport layer protocol as hair The transport layer protocol for sending the sip response message to use.
- 16. according to any one of claim 10 to the 15 CSCF entities, it is characterised in that at least two transport layer protocol Mark is carried on the via header fields of the sip request message.
- 17. the CSCF entities according to any one of claim 10 to 16, it is characterised in that the sip request message connects Enter network identity Paccess network ID header fields and carry network type mark corresponding to Wireless Fidelity Wifi networks.
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