CN104219705A - VoLTE terminal re-registering method and device - Google Patents
VoLTE terminal re-registering method and device Download PDFInfo
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Abstract
The invention discloses a VoLTE terminal re-registering method and a VoLTE terminal re-registering device, and the method comprises the following steps of: initially registering and interacting to VoLTE terminals and P-CSCF (Proxy Call Session Control Function); transmitting first registration requests into at least one backup P-CSCF and receiving all first registration response messages through the VoLTE terminals, wherein the mentioned first registration response messages include authentication parameters; if a failure is occurred in the P-CSCF, according to first backup P-CSCF addresses, by the VoLTE terminals, second registration requests are generated and transmitted into the first backup P-CSCF, and returned successful registration response messages are received; the first backup P-CSCF is one P-CSCF of at least one backup P-CSCF, and the second registration request includes authentication parameters corresponding to these of the first backup P-CSCF, thereby effectively reducing the procedure of re-registering the backup P-CSCF by the VoLTE terminal, quickening the registering time and improving the continuing efficiency of the VoLTE service.
Description
Technical field
The present invention relates to the communication technology, (Voice Over Long Term Evolution is called for short: VoLTE) terminal re-registration method and device to particularly relate to a kind of voice Long Term Evolution.
Background technology
VoLTE be framework on 4G network full Internet protocol (Internet Protocol is called for short: IP) voice scheme end to end under condition is the final solution of LTE epoch voice.For operator, dispose VoLTE and not only promote wireless frequency spectrum utilance, reduce network cost, also introduce the business etc. such as HD video phone, High frequency speech, significantly improve communication quality.
The realization of VoLTE must rely on IP Multimedia System (IP Multimedia Subsystem, be called for short: the IMS) deployment of network, IMS network element entity has: the subscriber equipment supporting VoLTE function, that is, VoLTE terminal; (Call Session Control Function, is called for short: CSCF) network element CSCF; Wherein, CSCF comprises again: Proxy Call Session Control Function (Proxy-CSCF, be called for short: P-CSCF), query call conversation control function (Interrogating-CSCF, be called for short: I-CSCF) and service call conversation control function (Serving-CSCF, abbreviation: S-CSCF); P-CSCF is the unified entrance of IMS visited network, complete Session initiation Protocol (the Session Initiation Protocol between IMS and VoLTE terminal, be called for short: SIP) (Quality of Service, is called for short: QoS) management and charging bill generate for message compression, certification, service quality; I-CSCF is the unified entrance of IMS home network, primary responsibility inquires about home subscriber server (Home Subscriber Server in registration, be called for short: HSS) for VoLTE terminal selects available S-CSCF, HSS is the server of stored user and server relevant information in IMS; S-CSCF is the core in IMS CSCF network element, and the registration of primary responsibility VoLTE terminal, authentication, business trigger and conversation control function.P-CSCF is linked into the entrance network element of IMS system as user, and its importance is self-evident.In many cases, multimedia service is caused to set up because the fault of P-CSCF makes VoLTE terminal cannot receive or send sip message to other CSCF of IMS.
At present, when P-CSCF breaks down time, be the situation of calling terminal for VoLTE terminal, due to the initiator that calling terminal is VoLTE calling, it senses that fault P-CSCF does not respond call request for a long time or receives the error response message that fault P-CSCF returns, then calling terminal is by selecting a P-CSCF for subsequent use the P-CSCF address list from Dynamic Acquisition during initial attachment IMS network, re-starts initial registration; Be the situation of terminal called for VoLTE terminal, it is the recipient of VoLTE calling, because VoLTE call link disconnects at the fault P-CSCF place of terminal called, terminal called is not known, and calling terminal have issued call request to oneself, now need to know that the P-CSCF of terminal called breaks down by S-CSCF, and notify that called VoLTE terminal initiates initial registration flow process again to P-CSCF for subsequent use again.VoLTE terminal transfer to P-CSCF for subsequent use re-starts initial registration scheme as shown in Figure 1, be specially: S101, VoLTE terminal creates SIP signaling registration message and mails on P-CSCF for subsequent use;
S102, after P-CSCF for subsequent use receives registration message, is forwarded on the I-CSCF of VoLTE terminating home network access point by this registration message;
S103, I-CSCF ask the user profile of this VoLTE terminal to HSS;
S104, HSS return to I-CSCF the S-CSCF that can meet customer service demand collection;
Registration message is transmitted to the S-CSCF that HSS distributes by S105, I-CSCF;
S106 ~ S107, S-CSCF find VoLTE terminal not by authentication and the certification of this P-CSCF for subsequent use from the registration message received, and download the authentication vector set of VoLTE terminal from HSS;
S108 ~ S110, S-CSCF generate 401 (unauthorized) message, and the authentication vector set of carrying VoLTE terminal sends to this VoLTE terminal by original path;
S111 ~ S115, VoLTE terminal calculates correct parameters for authentication according to the authentication parameter received after receiving 401 (unauthorized) message, generates new registration message and sends to S-CSCF by original path; Note, in S111, when VoLTE terminal second time sends registration message to P-CSCF for subsequent use, internet protocol security (Internet Protocol Security will be opened, be called for short: integrity protection IPSec), to guarantee that the message between VoLTE terminal to P-CSCF air interface transmission for subsequent use is encryption safe;
After S116 ~ S117, S-CSCF receive new registration message, judge whether it have passed authentication and encryption according to the authentication information that VoLTE terminal is uploaded, if pass through, then ask the information such as user contracting data and Charging-Address to HSS;
VoLTE terminal is turned back to according to original path message that will succeed in registration, since then the IMS registration success of VoLTE terminal after S118 ~ S120, S_CSCF obtain user profile.
Visible, during for the strong business of requirement of real-time as initiated audio call, P-CSCF breaks down thus makes VoLTE terminal initiate emergence treatment scheme: again on P-CSCF for subsequent use, carry out initial registration, then process business signaling process is continued, but above-mentioned complete initial registration process step is numerous and diverse, time delay is longer, cause the VoLTE terminal wait call proceeding time long, be unfavorable for the real-time service guarantees of VoLTE terminal.
Summary of the invention
The invention provides a kind of VoLTE terminal re-registration method and device of P-CSCF fault, effectively can reduce the flow process of VoLTE terminal to P-CSCF re-injection volume for subsequent use, thus accelerate hour of log-on, improve VoLTE business continuing efficiency.
The invention provides a kind of VoLTE terminal re-registration method of P-CSCF fault, comprising:
It is mutual that voice Long Term Evolution VoLTE terminal and master agent CSCF P-CSCF carry out initial registration;
Described VoLTE terminal sends the first registration request at least one P-CSCF for subsequent use;
Described VoLTE terminal receives the first registration reply message that at least one P-CSCF for subsequent use described returns, and comprises the authentication parameter that each P-CSCF for subsequent use feeds back to described VoLTE terminal in each first registration reply message;
If described main P-CSCF breaks down, then described VoLTE terminal is according to the first P-CSCF address for subsequent use, generates the second registration request, sends described second registration request to described first P-CSCF for subsequent use; Described first P-CSCF for subsequent use is a P-CSCF at least one P-CSCF for subsequent use described; The parameters for authentication that the authentication parameter of described first P-CSCF for subsequent use is corresponding is comprised in described second registration request;
Described VoLTE terminal receives the response message that succeeds in registration that described first P-CSCF for subsequent use returns.
The present invention also provides a kind of VoLTE terminal re-injection list device of P-CSCF fault, comprising:
Initial registration module, for carry out initial registration mutual with master agent CSCF P-CSCF;
Sending module, for sending the first registration request at least one P-CSCF for subsequent use;
Receiver module, for receiving the first registration reply message that at least one P-CSCF for subsequent use described returns, comprises the authentication parameter of each P-CSCF feedback for subsequent use in each first registration reply message;
Re-register module, if break down for described main P-CSCF, then according to the first P-CSCF address for subsequent use, generate the second registration request; Described first P-CSCF for subsequent use is a P-CSCF at least one P-CSCF for subsequent use described; The parameters for authentication that the authentication parameter of described first P-CSCF for subsequent use is corresponding is comprised in described second registration request;
Described sending module, also for sending described second registration request to described first P-CSCF for subsequent use;
Described receiver module, also for receiving the response message that succeeds in registration that described first P-CSCF for subsequent use returns.
The VoLTE terminal re-registration method of P-CSCF fault of the present invention and device, by VoLTE terminal after having carried out initial registration with main P-CSCF, send registration request to each P-CSCF for subsequent use, and receive the authentication parameter that each P-CSCF for subsequent use returns; If main P-CSCF breaks down, then VoLTE terminal initiates heavy registration request to P-CSCF address for subsequent use, the parameters for authentication corresponding to authentication parameter of this P-CSCF for subsequent use is comprised in this heavy registration request, and receive the response message that succeeds in registration that this P-CSCF for subsequent use returns, complete under main P-CSCF failure condition, VoLTE terminal to the re-injection volume of P-CSCF for subsequent use, thus reduces the flow process of VoLTE terminal to P-CSCF re-injection volume for subsequent use effectively, accelerate hour of log-on, improve VoLTE business continuing efficiency.
Accompanying drawing explanation
Fig. 1 is the signaling process figure of the method for the VoLTE terminal re-injection volume of existing P-CSCF fault;
Fig. 2 is the flow chart of the embodiment one of the VoLTE terminal re-registration method of P-CSCF fault of the present invention;
Fig. 3 is the flow chart of the embodiment two of the VoLTE terminal re-registration method of P-CSCF fault of the present invention;
Fig. 4 is the flow chart of the embodiment three of the VoLTE terminal re-registration method of P-CSCF fault of the present invention;
Fig. 5 is the signaling process figure of the embodiment four of the VoLTE terminal re-registration method of P-CSCF fault of the present invention;
Fig. 6 is the structural representation of the embodiment one of the VoLTE terminal re-injection list device of P-CSCF fault of the present invention;
Fig. 7 is the structural representation of the embodiment two of the VoLTE terminal re-injection list device of P-CSCF fault of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.It should be noted that, in accompanying drawing or specification, similar or identical element all uses identical Reference numeral.
Fig. 2 is the flow chart of the embodiment one of the VoLTE terminal re-registration method of P-CSCF fault of the present invention, and as shown in Figure 2, the method for the present embodiment comprises:
It is mutual that step 201, voice Long Term Evolution VoLTE terminal and master agent CSCF P-CSCF carry out initial registration.
In this step, it is identical that VoLTE terminal and main P-CSCF carry out the signaling process shown in the mutual flow process of initial registration and Fig. 1, only needs to change the P-CSCF for subsequent use in Fig. 1 into main P-CSCF.
Step 202, VoLTE terminal send the first registration request at least one P-CSCF for subsequent use.
In this step, VoLTE terminal complete with the initial registration of main P-CSCF after, this VoLTE terminal initiates a temporary transient registration message to P-CSCF address for subsequent use (can be the multiple addresses in P-CSCF list for subsequent use), this message called after tmp register message, with synchronous VoLTE terminal and P-CSCF information for subsequent use as early as possible.
Step 203, VoLTE terminal receive the first registration reply message that at least one P-CSCF for subsequent use returns, and comprise the authentication parameter that each P-CSCF for subsequent use feeds back to VoLTE terminal in each first registration reply message.
In this step, VoLTE terminal often sends temporary transient registration message to a P-CSCF for subsequent use, will receive the authentication parameter being applicable to this P-CSCF from this P-CSCF for subsequent use.This authentication parameter is asked and download to obtain to HSS according to the user profile (contact address, public user identity, private user identity etc.) of the VoLTE terminal sending registration request by S-CSCF.Authentication parameter comprises: random challenge, Expected Response, encryption key pair, Integrity Key, authentication-tokens.The partial information utilized in above-mentioned authentication parameter is calculated parameters for authentication by VoLTE terminal, for follow-up register flow path.
If the main P-CSCF of step 204 breaks down, then VoLTE terminal is according to the first P-CSCF address for subsequent use, generates the second registration request, sends the second registration request to the first P-CSCF for subsequent use; The parameters for authentication that the authentication parameter of the first P-CSCF for subsequent use is corresponding is comprised in second registration request.
In this step, the first P-CSCF for subsequent use is that in step 202, VoLTE terminal sends the first registration request to a P-CSCF at least one P-CSCF for subsequent use; Due in above-mentioned steps 203, VoLTE terminal may receive the authentication parameter that multiple P-CSCF for subsequent use returns, therefore, VoLTE terminal needs according to Notify message (Indication message, this message is the message that instruction VoLTE terminal re-registers) in the first P-CSCF address for subsequent use, get the parameters for authentication corresponding with the authentication parameter of this first P-CSCF for subsequent use, then, the message (i.e. the second registration request) this parameters for authentication be included in the first P-CSCF request registration for subsequent use is inner, and sends to the first P-CSCF for subsequent use.This just means, during VoLTE terminal re-injection volume P-CSCF, save S101-S110 in the prior art shown in Fig. 1 and receive the register flow path before 401 unauthorized message, directly utilize the authentication parameter received in step 203, initiate follow-up register flow path to P-CSCF for subsequent use (the first P-CSCF for subsequent use).
Step 205, VoLTE terminal receive the response message that succeeds in registration that the first P-CSCF for subsequent use returns.
In this step, parameters for authentication is through the forwarding of the first P-CSCF for subsequent use, finally judge that VoLTE terminal is by authentication and encryption by S-CSCF according to this parameters for authentication, then the information such as user contracting data and Charging-Address is asked to HSS, and send the response message that succeeds in registration, through the forwarding of I-CSCF, the first P-CSCF for subsequent use, return to VoLTE terminal.
The VoLTE terminal re-registration method of the P-CSCF fault that the present embodiment provides, by VoLTE terminal after having carried out initial registration with main P-CSCF, sends registration request to each P-CSCF for subsequent use, and receives the authentication parameter that each P-CSCF for subsequent use returns; When main P-CSCF breaks down, VoLTE terminal initiates heavy registration request to P-CSCF address for subsequent use, the parameters for authentication corresponding to authentication parameter of this P-CSCF for subsequent use is comprised in this heavy registration request, and receive the response message that succeeds in registration that this P-CSCF for subsequent use returns, complete under main P-CSCF failure condition, VoLTE terminal to the re-injection volume of P-CSCF for subsequent use, thus reduces the flow process of VoLTE terminal to P-CSCF re-injection volume for subsequent use effectively, accelerate hour of log-on, improve VoLTE business continuing efficiency.
Fig. 3 is the flow chart of the embodiment two of the VoLTE terminal re-registration method of P-CSCF fault of the present invention, and as shown in Figure 3, the method for the present embodiment comprises:
It is mutual that step 301, voice Long Term Evolution VoLTE terminal and master agent CSCF P-CSCF carry out initial registration.
Step 302, VoLTE terminal send the first registration request at least one P-CSCF for subsequent use.
Step 303, VoLTE terminal receive the first registration reply message that at least one P-CSCF for subsequent use returns, and comprise the authentication parameter that each P-CSCF for subsequent use feeds back to VoLTE terminal in each first registration reply message.
Step 304, main P-CSCF break down, if this VoLTE terminal is terminal called, then this terminal called receives the re-injection volume Indication message sent by service call conversation control function S-CSCF that the first P-CSCF for subsequent use forwards, and comprises the first P-CSCF address for subsequent use in re-injection volume Indication message; If this VoLTE terminal is calling terminal, then this calling terminal selects a highest-ranking P-CSCF for subsequent use as the first P-CSCF for subsequent use according to the priority of at least one P-CSCF for subsequent use.
In this step, can know that P-CSCF is linked into the entrance network element of IMS system as VoLTE terminal with reference to the signaling process shown in figure 1, its importance is self-evident.Fault due to P-CSCF makes VoLTE terminal cannot receive (VoLTE terminal is as terminal called) or sends (VoLTE terminal is as calling terminal) sip message to other CSCF of IMS, thus causes multimedia service to set up.
When VoLTE terminal is terminal called, main P-CSCF breaks down, when S-CSCF forwards Invite message (this message is the notification message that VoLTE terminal sets up voice call link) to main P-CSCF, receive the errored response that main P-CSCF returns or the response not receiving this main P-CSCF for a long time, then S-CSCF judges that this main P-CSCF fault can not solve in a short time, the long period is needed to keep in repair, so issue Notify (Indication message) message to the first P-CSCF for subsequent use, Notify message is transmitted to this VoLTE terminal called by the first P-CSCF for subsequent use again, will initiate re-register request to this first P-CSCF for subsequent use after VoLTE terminal called receives the Notify message of the first P-CSCF forwarding for subsequent use.It should be noted that: VoLTE terminal is when initial registration is to main P-CSCF, contain the address list of each P-CSCF for subsequent use in the registration request, and send to HSS and S-CSCF to preserve, after main P-CSCF breaks down, S-CSCF selects the address of a P-CSCF for subsequent use as the first P-CSCF for subsequent use from the address list received before, and the address of this first P-CSCF for subsequent use is carried in Notify Indication message sends to the first P-CSCF for subsequent use, be used to indicate VoLTE terminal called and initiate heavy registration request to this first P-CSCF for subsequent use.
When VoLTE terminal is calling terminal, main P-CSCF breaks down, calling terminal is as Business Initiator, when sending Invite message (this message is the notification message that VoLTE terminal sets up voice call link) to main P-CSCF, receive the errored response that main P-CSCF returns or the response not receiving this main P-CSCF for a long time, then calling terminal judges that this main P-CSCF fault can not solve in a short time, the long period is needed to keep in repair, so this calling terminal selects a highest-ranking P-CSCF for subsequent use as the first P-CSCF for subsequent use according to the priority of at least one P-CSCF for subsequent use, calling terminal stores the address list of P-CSCF for subsequent use, and this address list sorts according to priority orders, when this calling terminal needs initiation to re-register request, according to the priority orders of P-CSCF address list for subsequent use, to coming the primary P-CSCF of P-CSCF for subsequent use, i.e. the first P-CSCF for subsequent use, again registration is initiated.
Step 305, VoLTE terminal are from the authentication parameter received, search the authentication parameter that P-CSCF address for subsequent use with first is corresponding, according to the authentication parameter found, calculate the parameters for authentication of the first P-CSCF for subsequent use, generate the second registration request, send the second registration request to the first P-CSCF for subsequent use; The parameters for authentication that the authentication parameter of the first P-CSCF for subsequent use is corresponding is comprised in second registration request.
In this step, due in abovementioned steps, VoLTE terminal receives the authentication parameter that at least one P-CSCF for subsequent use returns, therefore, VoLTE terminal is according to the first P-CSCF address for subsequent use, search authentication parameter corresponding with it, and calculate parameters for authentication corresponding to P-CSCF address for subsequent use with first according to this authentication parameter, this parameters for authentication is carried in the second login request message and sends to the first P-CSCF for subsequent use.
Step 306, VoLTE terminal receive the response message that succeeds in registration that the first P-CSCF for subsequent use returns.
The VoLTE terminal re-registration method of the P-CSCF fault that the present embodiment provides, by VoLTE terminal after having carried out initial registration with main P-CSCF, sends registration request to each P-CSCF for subsequent use, and receives the authentication parameter that each P-CSCF for subsequent use returns; When main P-CSCF breaks down, VoLTE terminal, as terminal called, is that it specifies P-CSCF, the VoLTE terminal for subsequent use of re-injection volume as calling terminal by S-CSCF, determines a P-CSCF for subsequent use by the priority of P-CSCF for subsequent use; VoLTE terminal is again by searching the authentication parameter of this P-CSCF for subsequent use, calculate the parameters for authentication of this P-CSCF for subsequent use, initiate heavy registration request, finally by the response message that succeeds in registration that this P-CSCF for subsequent use of reception returns, complete under main P-CSCF failure condition, VoLTE terminal to the re-injection volume of P-CSCF for subsequent use, thus reduces the flow process of VoLTE terminal to P-CSCF re-injection volume for subsequent use effectively, accelerate hour of log-on, improve VoLTE business continuing efficiency.
Fig. 4 is the flow chart of the embodiment three of the VoLTE terminal re-registration method of P-CSCF fault of the present invention, and as shown in Figure 4, the method for the present embodiment comprises:
It is mutual that step 401, voice Long Term Evolution VoLTE terminal and master agent CSCF P-CSCF carry out initial registration.
Step 402, VoLTE terminal send the first registration request at least one P-CSCF for subsequent use.
Step 403, VoLTE terminal receive the first registration reply message that at least one P-CSCF for subsequent use returns, and comprise the authentication parameter that each P-CSCF for subsequent use feeds back to VoLTE terminal in each first registration reply message.
Step 404, VoLTE terminal calculate parameters for authentication corresponding to each P-CSCF for subsequent use according to the authentication parameter of the P-CSCF each for subsequent use received, and authentication storage parameter.
In this step, VoLTE terminal is after the authentication parameter receiving each P-CSCF for subsequent use, terminal idle Resource Calculation is utilized to go out the parameters for authentication corresponding with each P-CSCF for subsequent use and store, when making follow-up needs to P-CSCF re-injection volume for subsequent use, can directly search the parameters for authentication corresponding with P-CSCF for subsequent use, and before noting be used in the heavy registration request of transmission, then spended time calculates the parameters for authentication corresponding with P-CSCF for subsequent use, thus save the time of P-CSCF re-injection volume further.
If the main P-CSCF of step 405 breaks down, VoLTE terminal is from each parameters for authentication stored, search the parameters for authentication that P-CSCF address for subsequent use with first is corresponding, generate the second registration request, send the second registration request to the first P-CSCF for subsequent use, the first P-CSCF for subsequent use is a P-CSCF at least one P-CSCF for subsequent use; The parameters for authentication that the authentication parameter of the first P-CSCF for subsequent use is corresponding is comprised in second registration request.
In this step, VoLTE terminal by step 404 as calculated and store the parameters for authentication of each P-CSCF for subsequent use, if main P-CSCF breaks down, VoLTE terminal only needs the P-CSCF for subsequent use according to re-injection volume, namely the first P-CSCF for subsequent use finds parameters for authentication corresponding with it, then the registration request carrying this parameters for authentication is sent to the first P-CSCF for subsequent use, thus when saving re-injection volume, calculate the time of the corresponding parameters for authentication of P-CSCF for subsequent use, accelerate hour of log-on further.
Step 406, VoLTE terminal receive the response message that succeeds in registration that the first P-CSCF for subsequent use returns.
Further, on the basis of above-described embodiment, if VoLTE terminal is terminal called, in the second registration request, comprise S-CSCF address information, establish the link to make this terminal called and this S-CSCF.
Known from Fig. 1 existing re-injection volume flow chart, by step S113 ~ S114, HSS returns the S-CSCF meeting customer service demand collection to I-CSCF, but the S-CSCF that this S-CSCF likely and originally sends re-injection volume Indication message is different, but due to main P-CSCF fault, original Invite message (this message is that VoLTE calling terminal issues terminal called to set up the notification message of voice call link) could not pass to the P-CSCF of fault, therefore the S-CSCF of this Invite message also original is in store, if when re-registering, S-CSCF that I-CSCF this time selects is different from original, then this S-CSCF corresponding to P-CSCF for subsequent use is because not this Invite signaling message, thus cannot replay call operation flow, also need I-CSCF again for this VoLTE terminal called selects S-CSCF, delay call business connecting time.Therefore, by comprising S-CSCF address information in the second registration request, this S-CSCF stores the notification message of the calling and called voice call link that continues, step S113 ~ the S114 in Fig. 1 can be skipped, directly the second registration request is sent to the first P-CSCF for subsequent use, the S-CSCF address comprised in the second registration request is transmitted to again by the first P-CSCF for subsequent use, establish the link to make VoLTE terminal called and this S-CSCF, success receives Invite message, thus shorten heavy register flow path further, save heavy hour of log-on.
The VoLTE terminal re-registration method of the P-CSCF fault that the present embodiment provides, by VoLTE terminal after having carried out initial registration with main P-CSCF, registration request is sent to each P-CSCF for subsequent use, receive the authentication parameter that each P-CSCF for subsequent use returns, and calculate the parameters for authentication of each P-CSCF for subsequent use according to authentication parameter; When main P-CSCF breaks down, VoLTE terminal is by searching the parameters for authentication of P-CSCF for subsequent use, and this parameters for authentication is carried in heavy login request message and sends to P-CSCF for subsequent use, thus complete under main P-CSCF failure condition, VoLTE terminal is to the re-injection volume of P-CSCF for subsequent use, thus effectively reduce the flow process of VoLTE terminal to P-CSCF re-injection volume for subsequent use, accelerate hour of log-on, improve VoLTE business continuing efficiency.
Fig. 5 is the signaling process figure of the embodiment four of the VoLTE terminal re-registration method of P-CSCF fault of the present invention, and as figure 5 illustrates, VoLTE terminal is as terminal called, and the flow process that re-registers after main P-CSCF breaks down is:
S501, S-CSCF forward Invite notification message;
S502, receives the errored response that main P-CSCF returns or the response not receiving main P-CSCF;
S503, S-CSCF judge that this fault short-term can not solve;
S504, issues re-injection volume Indication message to P-CSCF for subsequent use;
Re-injection volume Indication message is transmitted to VoLTE terminal by S505, P-CSCF for subsequent use again;
S506, according to the P-CSCF address for subsequent use in re-injection volume Indication message, obtains the parameters for authentication corresponding to authentication parameter of this P-CSCF for subsequent use, generates registration request;
S507 ~ S509, sends and forwards heavy registration request;
S510 ~ S512, receives the response message that succeeds in registration, call business link establishment success;
S513 ~ S514, receives the Invite notification message that S-CSCF forwards;
S515, starts follow-up call flow.
Based on above-described embodiment, in step S504, S-CSCF issues the address information of carrying this S-CSCF in re-injection volume Indication message, with the address information making VoLTE terminal carry this S-CSCF in the heavy registration request generated, thus skip step S508, I-CSCF is not needed to be that VoLTE terminal selects S-CSCF, and directly heavy registration request is sent to P-CSCF for subsequent use through step 507, again according to the address information of entrained S-CSCF, directly be transmitted to S-CSCF, thus shorten heavy register flow path further, save heavy hour of log-on.
Fig. 6 is the structural representation of the embodiment one of VoLTE terminal re-injection list device of the present invention, and as shown in Figure 6, the device of the present embodiment comprises: initial registration module 11, for carry out initial registration mutual with master agent CSCF P-CSCF.Sending module 12, for sending the first registration request at least one P-CSCF for subsequent use.Receiver module 13, for receiving the first registration reply message that at least one P-CSCF for subsequent use returns, comprises the authentication parameter of each P-CSCF feedback for subsequent use in each first registration reply message.Re-register module 14, if break down for main P-CSCF, then according to the first P-CSCF address for subsequent use, generate the second registration request; First P-CSCF for subsequent use is a P-CSCF at least one P-CSCF for subsequent use; The parameters for authentication that the authentication parameter of the first P-CSCF for subsequent use is corresponding is comprised in second registration request.Further, sending module 12, also for sending the second registration request to the first P-CSCF for subsequent use.Receiver module, also for receiving the response message that succeeds in registration that the first P-CSCF for subsequent use returns.
The device of the present embodiment, can be used for the technical scheme of the embodiment one performing VoLTE terminal re-registration method shown in Fig. 2, it realizes principle and technique effect is similar, repeats no more herein.
The VoLTE terminal re-injection list device of the P-CSCF fault that the present embodiment provides, by VoLTE terminal after having carried out initial registration with main P-CSCF, sends registration request to each P-CSCF for subsequent use, and receives the authentication parameter that each P-CSCF for subsequent use returns; When main P-CSCF breaks down, VoLTE terminal initiates heavy registration request to P-CSCF address for subsequent use, the parameters for authentication corresponding to authentication parameter of this P-CSCF for subsequent use is comprised in this heavy registration request, and receive the response message that succeeds in registration that this P-CSCF for subsequent use returns, complete under main P-CSCF failure condition, VoLTE terminal to the re-injection volume of P-CSCF for subsequent use, thus reduces the flow process of VoLTE terminal to P-CSCF re-injection volume for subsequent use effectively, accelerate hour of log-on, improve VoLTE business continuing efficiency.
Fig. 7 is the structural representation of the embodiment two of VoLTE terminal re-injection list device of the present invention, as shown in Figure 7, the device of the present embodiment is on the basis of Fig. 6 shown device, further, receiver module 13, also for receiving the re-injection volume Indication message sent by service call conversation control function S-CSCF that the first P-CSCF for subsequent use forwards, in re-injection volume Indication message, comprise the first P-CSCF address for subsequent use.Select module 15, for selecting a highest-ranking P-CSCF for subsequent use as the first P-CSCF for subsequent use according to the priority of at least one P-CSCF for subsequent use.Re-register module 14, specifically for from the authentication parameter received, search the authentication parameter that P-CSCF address for subsequent use with first is corresponding, according to the authentication parameter found, calculate the parameters for authentication of the first P-CSCF for subsequent use, generate the second registration request.The device of the present embodiment also comprises: computing module 16, for calculating parameters for authentication corresponding to each P-CSCF for subsequent use according to the authentication parameter of the P-CSCF each for subsequent use received, and authentication storage parameter.Further, re-register module 14, specifically for from each parameters for authentication stored, search the parameters for authentication that P-CSCF address for subsequent use with first is corresponding, generate the second registration request.
On the basis of above-described embodiment, in the second registration request, S-CSCF address information can be comprised, establish the link to make VoLTE terminal and S-CSCF.
The VoLTE terminal re-injection list device of the P-CSCF fault that the present embodiment provides, by VoLTE terminal after having carried out initial registration with main P-CSCF, sends registration request to each P-CSCF for subsequent use, and receives the authentication parameter that each P-CSCF for subsequent use returns; When main P-CSCF breaks down, VoLTE terminal, as terminal called, is that it specifies P-CSCF, the VoLTE terminal for subsequent use of re-injection volume as calling terminal by S-CSCF, determines a P-CSCF for subsequent use by the priority of P-CSCF for subsequent use; VoLTE terminal is again by searching the authentication parameter of this P-CSCF for subsequent use, calculate the parameters for authentication of this P-CSCF for subsequent use, initiate heavy registration request, finally by the response message that succeeds in registration that this P-CSCF for subsequent use of reception returns, complete under main P-CSCF failure condition, VoLTE terminal to the re-injection volume of P-CSCF for subsequent use, thus reduces the flow process of VoLTE terminal to P-CSCF re-injection volume for subsequent use effectively, accelerate hour of log-on, improve VoLTE business continuing efficiency.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in previous embodiment, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a VoLTE terminal re-registration method, is characterized in that, comprising:
It is mutual that voice Long Term Evolution VoLTE terminal and master agent CSCF P-CSCF carry out initial registration;
Described VoLTE terminal sends the first registration request at least one P-CSCF for subsequent use;
Described VoLTE terminal receives the first registration reply message that at least one P-CSCF for subsequent use described returns, and comprises the authentication parameter that each P-CSCF for subsequent use feeds back to described VoLTE terminal in each first registration reply message;
If described main P-CSCF breaks down, then described VoLTE terminal is according to the first P-CSCF address for subsequent use, generates the second registration request, sends described second registration request to described first P-CSCF for subsequent use; Described first P-CSCF for subsequent use is a P-CSCF at least one P-CSCF for subsequent use described; The parameters for authentication that the authentication parameter of described first P-CSCF for subsequent use is corresponding is comprised in described second registration request;
Described VoLTE terminal receives the response message that succeeds in registration that described first P-CSCF for subsequent use returns.
2. method according to claim 1, is characterized in that, after described main P-CSCF breaks down, also comprises:
If described VoLTE terminal is terminal called, then described terminal called receives the re-injection volume Indication message sent by service call conversation control function S-CSCF that described first P-CSCF for subsequent use forwards, and comprises described first P-CSCF address for subsequent use in described re-injection volume Indication message;
If described VoLTE terminal is calling terminal, then described calling terminal selects a highest-ranking P-CSCF for subsequent use as described first P-CSCF for subsequent use according to the priority of at least one P-CSCF for subsequent use described.
3. method according to claim 1, is characterized in that, described VoLTE terminal, according to the first P-CSCF address for subsequent use, generates the second registration request, comprising:
Described VoLTE terminal, from the authentication parameter received, searches the authentication parameter corresponding with described first P-CSCF address for subsequent use, according to the authentication parameter found, calculates the parameters for authentication of described first P-CSCF for subsequent use, generates the second registration request.
4. method according to claim 1, is characterized in that, after the first registration reply message that described in described VoLTE terminal receives, at least one P-CSCF for subsequent use returns, also comprises:
Described VoLTE terminal calculates parameters for authentication corresponding to each P-CSCF for subsequent use according to the authentication parameter of the P-CSCF each for subsequent use received, and stores described parameters for authentication;
Accordingly, described VoLTE terminal, according to the first P-CSCF address for subsequent use, generates the second registration request, comprising:
Described VoLTE terminal, from each parameters for authentication stored, is searched the parameters for authentication corresponding with described first P-CSCF address for subsequent use, is generated the second registration request.
5. method according to claim 2, is characterized in that,
If described VoLTE terminal is terminal called, in described second registration request, comprise described S-CSCF address information, establish the link to make described terminal called and described S-CSCF.
6. a VoLTE terminal re-injection list device, is characterized in that, comprising:
Initial registration module, for carry out initial registration mutual with master agent CSCF P-CSCF;
Sending module, for sending the first registration request at least one P-CSCF for subsequent use;
Receiver module, for receiving the first registration reply message that at least one P-CSCF for subsequent use described returns, comprises the authentication parameter of each P-CSCF feedback for subsequent use in each first registration reply message;
Re-register module, if break down for described main P-CSCF, then according to the first P-CSCF address for subsequent use, generate the second registration request; Described first P-CSCF for subsequent use is a P-CSCF at least one P-CSCF for subsequent use described; The parameters for authentication that the authentication parameter of described first P-CSCF for subsequent use is corresponding is comprised in described second registration request;
Described sending module, also for sending described second registration request to described first P-CSCF for subsequent use;
Described receiver module, also for receiving the response message that succeeds in registration that described first P-CSCF for subsequent use returns.
7. device according to claim 6, is characterized in that,
Described receiver module, also for receiving the re-injection volume Indication message sent by service call conversation control function S-CSCF that described first P-CSCF for subsequent use forwards, comprises described first P-CSCF address for subsequent use in described re-injection volume Indication message;
Also comprise:
Select module, for selecting a highest-ranking P-CSCF for subsequent use as described first P-CSCF for subsequent use according to the priority of at least one P-CSCF for subsequent use described.
8. device according to claim 6, is characterized in that,
Describedly re-register module, specifically for from the authentication parameter received, search the authentication parameter corresponding with described first P-CSCF address for subsequent use, according to the authentication parameter found, calculate the parameters for authentication of described first P-CSCF for subsequent use, generate the second registration request.
9. device according to claim 6, is characterized in that, also comprises:
Computing module, for calculating parameters for authentication corresponding to each P-CSCF for subsequent use according to the authentication parameter of the P-CSCF each for subsequent use received, and stores described parameters for authentication;
Accordingly,
Describedly re-register module, specifically for from each parameters for authentication stored, search the parameters for authentication corresponding with described first P-CSCF address for subsequent use, generate the second registration request.
10. device according to claim 7, is characterized in that,
Comprise described S-CSCF address information in described second registration request, establish the link to make described terminal called and described S-CSCF.
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