CN113543163B - Method and device for improving Volte end-to-end voice quality - Google Patents
Method and device for improving Volte end-to-end voice quality Download PDFInfo
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Abstract
The embodiment of the invention provides a method, a device, electronic equipment and a storage medium for improving Voltem end-to-end voice quality. The method comprises the following steps: after a calling side calls, the calling side inquires about an Enum of a called side; receiving account opening inquiry abnormal information fed back by an Enum server, addressing an HSS server through a DRA network, and inquiring the IMS registration state of a called side and host information of a calling side; and receiving IMS registered information fed back by the HSS server, transferring a call flow Invite flow to the called side, and communicating with the called side by the calling side through broadband coding AMR-WB. According to the embodiment of the invention, the AMR-WB coding call of the called party under the condition of abnormal data configuration is saved by carrying out a new judgment flow on the original call flow, so that the Volte end-to-end call quality of the data abnormal configuration user (Enum does not open an account) under the called party condition is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, an electronic device, and a storage medium for improving end-to-end voice quality of Volte.
Background
Volte is a 4G high-definition Voice/video communication service introduced by various large operators, is totally called as Voice over LTE, is an IP data transmission technology in which all services are carried on a 4G network, and is based on 4G high bandwidth, so that videos are clearer, voices are ultra-clear, and network speed is greatly improved compared with digital communication modes in 2G and 3G times.
The existing Volte voice call has the characteristics of ultra-clear main voice and high voice quality and fidelity, but once the user has the Volte subscription and Enum unoccupied state. When the user is called for Volte call, MGCF will remove all AMR-WB wideband codes in Invite initiated by calling side, only keep AMR-NB narrowband codes to negotiate with called Volte user. Finally, the calling party and the called party call in a Volte end-to-end AMR-NB narrowband coding mode, and cannot enjoy high-definition voice quality.
Therefore, how to propose a method to implement a new judgment process for the original call process, save the AMR-WB encoded call of the called party under the condition of abnormal data configuration, and improve the quality of the end-to-end call of the user under the called party condition, which is a problem to be solved.
Disclosure of Invention
Aiming at the defects in the prior art, the embodiment of the invention provides a method, a device, electronic equipment and a storage medium for improving Volte end-to-end voice quality.
In a first aspect, an embodiment of the present invention provides a method for improving end-to-end voice quality of Volte, including:
after a calling side calls, the calling side inquires about an Enum of a called side;
receiving account opening inquiry abnormal information fed back by an Enum server, addressing an HSS server through a DRA network, and inquiring the IMS registration state of a called side and host information of a calling side;
and receiving IMS registered information fed back by the HSS server, transferring a call flow Invite flow to the called side, and communicating with the called side by the calling side through broadband coding AMR-WB.
In a second aspect, an embodiment of the present invention provides an apparatus for improving end-to-end voice quality of Volte, including:
the first query module is used for the calling side to query the called side for Enum after the calling side calls;
the second query module is used for receiving account opening query abnormal information fed back by the Enum server, addressing the HSS server through the DRA network, and querying the IMS registration state of the called side and the host information of the calling side;
and the call module is used for receiving IMS registered information fed back by the HSS server, transferring a call flow Invite flow to the called side, and performing the call between the calling side and the called side by using a wideband code AMR-WB.
In a third aspect, an embodiment of the present invention provides an electronic device, including:
at least one processor; and at least one memory communicatively coupled to the processor, wherein: the memory stores program instructions executable by the processor, the processor invoking the program instructions being capable of performing the method of improving Volte end-to-end voice quality provided by any of the various possible implementations of the first aspect.
In a fourth aspect, embodiments of the present invention provide a non-transitory computer-readable storage medium storing computer instructions that cause a computer to perform a method for improving Volte end-to-end speech quality provided by any of the various possible implementations of the first aspect.
According to the method, the device, the electronic equipment and the storage medium for improving the Volte end-to-end voice quality, provided by the embodiment of the invention, the AMR-WB coding call is saved when the data configuration is abnormal by carrying out the new judgment flow on the original call flow, and the Volte end-to-end call quality of the data abnormal configuration user (Enum is not opened) under the condition of the called is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a Volte end-to-end voice call in the prior art;
fig. 2 is a flow chart of a method for improving the end-to-end voice quality of Volte according to an embodiment of the present invention;
fig. 3 is a flowchart of another method for improving the end-to-end voice quality according to an embodiment of the present invention;
fig. 4 is a flowchart of another method for improving the end-to-end voice quality according to an embodiment of the present invention;
fig. 5 is a schematic flow chart of a device for improving the end-to-end voice quality of Volte according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an entity structure of an electronic device according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the prior art, if the Volte subscription and the Enum abnormal user without account opening are used as the called party, the S-CSCF of the calling party directly routes the Invite call to the MGCF after the failure of the calling party by the Enum feedback No user (the Enum feedback result No such name). The MGCF will remove all AMR-WB wideband codes in the Invite initiated by the calling side, and only keep the AMR-NB narrowband codes to negotiate with the called Volter user. Finally, the calling party and the called party call in a Volte end-to-end AMR-NB narrowband coding mode, and cannot enjoy high-definition voice quality.
Fig. 1 is a schematic flow chart of a Volte end-to-end voice call in the prior art, as shown in fig. 1, the flow chart in the prior art is as follows:
step 1-2: the Volte caller performs a call flow (normal call flow, non-present method focus part, not described in detail). The SDP carries the coding mode which the calling side hopes to adopt: including AMR-WB and AMR-NB.
(II) step 3: the S-CSCF of the calling side carries out Enum inquiry and DNS inquiry on the called number, if the TEL-URI inquiry of the called party can be translated into SIP-URI, and the SIP address is translated through DNS, the home I-CSCF of the called party is found, and the called party is indicated as an Enum account opening and Volten subscriber; if the called TEL-URI query cannot be translated into a SIP-URI, enum does not open an account, but cannot confirm whether it is a Volte subscriber.
(III) step 4: and the Enum server feeds back the calling S-CSCF according to the query result.
Step 4a: for the Enum account opening user, the Enum server translates the TEL-URI (as 1390551) query successfully into-! ^. $ -! sip +861390551 @ ah. Is. Ims. Mnc000.Mcc460.3gpp network. Org; user=phone-! .
Step 4b: aiming at the abnormal user which does not open an account by the Enum, the abnormal user which does not open an account by the Enum directly feeds back the No such name.
And step 5a, if the Enum opens an account, the S-CSCF at the calling side performs DNS query according to the query translation result to find the home I-CSCF of the called user, and the call flow is transferred to the called I-CSCF (normal call flow, non-present method key parts are not described in detail).
Step 5b: if Enum does not open an account, the calling side S-CSCF directly flows the call flow to the calling side MGCF.
(V) step 6: if the preamble flow is step 5b, the calling side MGCF addresses via INVOKE SENDROUTINGINFO and INVOKE PROVIDESUBSCRIBERINFO and feeds back the result via RETURN RESULTLAST PROVIDESUBSCRIBERINFO and RETURN RESULTLAST SENDROUTINGINFO, eventually anchoring the call to the IMS domain. But at this time, the MGCF has passed, and the SDP carries the coding scheme that the calling side wants to use, which has been changed by the MGCF to the AMR-NB coding scheme only.
Step (six) 7: later call routing is the same as the Volte end-to-end call flow (but all routes need to pass through the calling side MGCF), and the important parts of the method are not described in detail. And finally, the Volter calling subscriber calls the Volter subscription, but the Enum abnormal subscriber which does not open an account uses the AMR-NB coding mode to call.
In this case, both the calling party and the called party are IMS registered subscribers residing in the LTE network, but only can carry out Volte call by AMR-NB narrowband coding.
The method for improving Volte end-to-end voice quality provided by the embodiment of the invention newly adds the S-CSCF to the called side HSS to inquire whether the called has a registered S-CSCF flow after the Enum inquires that no user exists. If yes, triggering S-CSCF capability level inquiry or host name I-CSCF record according to the registration process on HSS, directly transferring the call flow to the called I-CSCF, discarding the route to the MGCF in the middle, and discarding AMR-WB broadband code by the MGCF, wherein the later call route is the same as the Volte end-to-end call flow; if there is no called user IMS registered S-CSCF information on the called HSS, it indicates that the current called user IMS is not registered, the call flow flows to the calling MGCF, and the called anchoring flow is triggered. The embodiment of the invention carries out a new judgment flow on the original call flow, saves the AMR-WB coding call of the called party under the condition of abnormal data configuration, and improves the Volte end-to-end call quality of the user under the condition of the called party.
An embodiment of the present invention provides a method for improving the end-to-end voice quality of Volte, and fig. 2 is a schematic flow chart of the method for improving the end-to-end voice quality of Volte provided by the embodiment of the present invention, as shown in fig. 2, the method includes:
201. after the calling side makes a call, the calling side makes an Enum query to the called side.
Specifically, according to the method for improving the end-to-end voice quality of the embodiment, in the 201, the Volte caller performs a call flow, where the SDP carries the coding mode that the caller wants to use: the AMR-WB (Adaptive Multi-rate-Wideband) is a Wideband voice coding standard adopted by international standardization organizations ITU-T and 3GPP at the same time, the AMR-WB provides a voice bandwidth range reaching 50-7000 Hz, a user can subjectively feel more natural, comfortable and easy to distinguish voice than before, the AMR-NB is Adaptive Multi-rate coding, and is mainly used for audio frequency of mobile equipment, the compression ratio is larger, the quality is poorer than that of other compression formats, and the user experience is general;
the S-CSCF of the calling side carries out Enum inquiry and DNS inquiry on the called number, if the TEL-URI inquiry of the called side can be translated into a SIP-URI, wherein the URI (Uniform Resource Identifier ) has two formats of the TEL URI and the SIP URI, and the URI is translated into an IP address through DNS to find the called home I-CSCF, the called side is indicated to be an Enum account opening and Volter subscriber; if the called TEL-URI query cannot be translated into a SIP-URI, enum does not open an account, but cannot confirm whether it is a Volte subscriber.
202. And receiving account opening query abnormal information fed back by the Enum server, addressing the HSS server through the DRA network, and querying the IMS registration state of the called side and the host information of the calling side.
Specifically, according to the method for improving the end-to-end voice quality of Volte in the above embodiment, in the above 202, the Enum server feeds back the query result of the calling S-CSCF according to the query result, and for the Enum non-account opening abnormal user, the Enum non-account opening abnormal user directly feeds back the No such name; when the calling side receives abnormal information of account opening inquiry fed back by the Enum server, a new flow of the embodiment of the invention is entered, the S-CSCF at the calling side does not transfer the call flow to the MGCF at the calling side, but directly uses User-Authorization Request to address the home HSS server of the called side through a DRA network to inquire the IMS registration state of the called side, and the HSS server records the information of the User home allocation host name S-CSCF and the like with the completion of IMS registration. The DRA (Diameter Routing Agent, routing agent node) is responsible for the translation and transfer of LTE Diameter signaling destination address, and realizes authentication, location update and charging management of LTE users; a HSS (Home Subscriber Server ) supporting a main subscriber database for handling calling/session IMS network entities; IMS (IP Multimedia Subsystem) is an IP multimedia system, which is a brand new multimedia service format, and can meet the requirements of more novel and diversified multimedia services of terminal clients; the S-CSCF is a serving call session control function, a functional entity within the IMS.
203. And receiving IMS registered information fed back by the HSS server, transferring a call flow Invite flow to the called side, and communicating with the called side by the calling side through broadband coding AMR-WB.
Specifically, according to the method for improving the voice quality from end to end in the foregoing embodiment, in the foregoing 203, if the HSS Server queries that the called IMS is registered and obtains the home service S-CSCF, the User-Authorization Answer is used to reply to the called IMS registration hostname of the calling side S-CSCF (called home S-CSCF, such as Server-Name: sip: ah.ims.mc000.3 gpp network.org: 5090) through the DRA network, and after receiving the IMS registered information fed back by the HSS Server, the calling side S-CSCF directly flows the call flow Invite to the called I-CSCF, where the SDP carries the coding mode that the calling side wants to use: including AMR-WB and AMR-NB. Once the wideband code AMR-WB is reported in the called side code negotiation, the calling and called calls can still be conducted with the wideband code AMR-WB. The subsequent flow is the same as the Volte end-to-end call flow, and will not be described in detail here, wherein the I-CSCF is an interrogating call session control function, which is a functional entity within the IMS.
According to the method for improving Volte end-to-end voice quality, provided by the embodiment of the invention, the AMR-WB coding call still used by the called party under the condition of abnormal data configuration is saved by carrying out the new judgment flow on the original call flow, and the Volte end-to-end call quality of the data abnormal configuration user (Enum does not open an account) under the called party condition is improved.
Further, on the basis of the above embodiment, the method further includes:
if the successful information of the account opening inquiry fed back by the Enum server is received, the home I-CSCF of the called side is found through inquiry of the DNS server, and the call flow is transferred to the called side.
Specifically, according to the method for improving the end-to-end voice quality of Volte in the above embodiment, for the Enum account opening user, the Enum server translates the TEL-URI (for example, 1390551) query successfully into the following steps! ^. $ -! sip +861390551 @ ah. Is. Ims. Mnc000.Mcc460.3gpp network. Org; user=ph one-! After receiving successful information of the opening inquiry fed back by the Enum server, the S-CSCF at the calling side performs DNS inquiry according to the inquiry translation result to find the home I-CSCF of the called side, and transfers the call flow Invite to the called I-CSCF, and the follow-up is a normal call flow, and the embodiment of the invention is not described in detail.
According to the method for improving Volte end-to-end voice quality, the Volte end-to-end call quality of the data abnormal configuration user (Enum does not open an account) under the called condition is improved under the condition that the use environment of the configuration normal user is not affected by the new judgment flow of the original call flow.
Further, on the basis of the foregoing embodiment, the querying the IMS registration status of the called number further includes:
if the HSS server inquires to obtain the registered called IMS and the host information of the calling side;
and receiving the IMS registration state of the called side and the host information of the calling side fed back by the HSS through the DRA network.
Specifically, according to the method for improving the voice quality from end to end in the embodiment, the HSS server records information such as the user attribution allocation hostname S-CSCF and the like after the IMS registration is completed, and if the query is performed to obtain the called IMS registered and obtain the calling side S-CSCF host information, the calling side receives the called side IMS registration information and the calling side host information fed back by the HSS server through the DRA network.
According to the method for improving Volte end-to-end voice quality, the HSS server is inquired on the called side, so that AMR-WB coding call is still used when the data configuration is abnormal, and Volte end-to-end call quality of a data abnormal configuration user (Enum does not open an account) under the called condition is improved.
Further, on the basis of the foregoing embodiment, after receiving IMS registered information fed back by the HSS server, the method further includes:
and initiating a called side home I-CSCF for distributing host name inquiry when initiating inquiry of the called side IMS registration process to the HSS server again.
Specifically, according to the method for improving the voice quality from end to end in the embodiment, if the query results in that the called IMS is registered and the home S-CSCF of the calling side is obtained, user-Authorization Request is initiated again to the home HSS server, and the capability or hostname of the allocated S-CSCF initiated by which I-CSCF is in the registration process of the called IMS is queried.
According to the method for improving Volte end-to-end voice quality, provided by the embodiment of the invention, the called side is queried by the HSS server twice, so that AMR-WB coding call is still used under the condition of abnormal data configuration, and the Volte end-to-end call quality of a data abnormal configuration user (Enum does not open an account) under the condition of the called is improved.
And the calling side receives the home I-CSCF of the called side fed back by the HSS server.
Specifically, according to the method for improving the voice quality from end to end in the embodiment, if the query results in that the called IMS is registered and the home S-CSCF of the calling side is obtained, and after the query is initiated to the home HSS server again, the home HSS server feeds back the I-CSCF of the called side through the User-Authorization Answer, and the calling side can receive the I-CSCF of the home of the called side fed back by the HSS server.
According to the method for improving Volte end-to-end voice quality, provided by the embodiment of the invention, the called side is queried by the HSS server twice, so that AMR-WB coding call is still used under the condition of abnormal data configuration, and the Volte end-to-end call quality of a data abnormal configuration user (Enum does not open an account) under the condition of the called is improved.
Further, on the basis of the above embodiment, the method further includes:
and if the HSS server can not inquire the IMS registered information, receiving called side IMS unregistered information fed back by the HSS server through the DRA network.
Specifically, according to the method for improving the end-to-end voice quality of Volte in the above embodiment, if the HSS server cannot query the registered information of the IMS of the called side and the home service S-CSCF, the called home HSS server replies, by using the User-Authorization Answer, that the IMS of the called side of the calling side S-CSCF is unregistered through the DRA network, where the IMS unregistered includes two possibilities of unregistering the User Volte subscription or unregistering the User Volte.
According to the method for improving Volte end-to-end voice quality, the HSS server is carried out on the called side to inquire IMS registration information, and subsequent processing is carried out on an IMS unregistered user, so that Volte end-to-end conversation quality of a data abnormal configuration user (Enum is not opened) under the called condition is improved.
Further, on the basis of the above embodiment, the method further includes:
the calling side transfers the call flow Invite to a calling side media gateway control function;
the calling side media gateway control function triggers the called anchor judgment flow.
Specifically, according to the method for improving the end-to-end voice quality of the embodiment, since the HSS server feeds back that the IMS on the called side is unregistered, the calling S-CSCF flows the call flow to the calling MGCF, and the calling MGCF starts the called anchor determination flow, which is irrelevant to the embodiment of the present invention and is not described in detail herein, where the MGCF (media gateway control function) is a gateway that enables communication between the IMS user and the CSCF user. All call control signalling from CSCF users is directed to MGCF, which is responsible for protocol conversion between ISDN user part or bearer independent call control and SIP protocol and forwarding the session to IMS.
According to the method for improving Volte end-to-end voice quality, the HSS server is used for inquiring IMS registration information on the called side, triggering called anchor judgment is carried out on an IMS unregistered user, and accordingly Volte end-to-end conversation quality of a data abnormal configuration user (Enum is not in an account) under the called condition is improved.
Further, on the basis of the above embodiments, fig. 3 is a schematic flow chart of another method for improving end-to-end voice quality provided by the embodiment of the present invention, as shown in fig. 3, in the embodiment of the present invention, after an Enum query is performed on a called (volume signed up, enum unopened) number by a calling party, if the feedback result is that No subname (the feedback result of a normal volume signed up Enum user should be that the TEL-URI of the called party is translated into a SIP-URI, if the result is Regex @ | SIP @ 861390551 @ ah.ims.mc000.mcc460.3 gcnetwork.org, user=phone @), the call flow is not routed to MGCF (the existing flow is directly routed to MGCF, and then the MGCF initiates whether the voice query is signed up by the called party, and triggers to anchor to the IMS domain. If the called IMS registration is registered, triggering the capability level query of the S-CSCF or the record of the host name I-CSCF in the registration process on the HSS, directly transferring the call flow to the called I-CSCF, discarding the route to the MGCF in the middle, and discarding the AMR-WB broadband code by the MGCF, wherein the call flow is the same as the Volte end-to-end call flow in the later stage; if there is no called user IMS registered S-CSCF information on the called HSS, it indicates that the current called user IMS is not registered, the call flow flows to the calling MGCF, and triggers the called anchor flow.
For the normal caller side call flow, as shown in fig. 4, the dashed box is the flow newly added in this embodiment: when the called number is inquired by the calling side and no result is obtained, the SCSCCF of the calling side inquires whether the called IMS registration information exists in the called home HSS, judges whether the called IMS registration information and the service SCSCSCF host name exist in the called home HSS, if yes, the called IMS is registered, the ICSCF of the SCSCF host is triggered and allocated when the called IMS registration is inquired in the called side HSS, and the call flow flows to the called ICSCF; if not, the called IMS is not registered, the call flow flows to the calling MGCF, and the called anchoring flow is triggered.
The embodiment of the invention needs to upgrade the software of the S-CSCF side. Involving a small-scale modification of the core network side.
According to the method for improving Volte end-to-end voice quality, provided by the embodiment of the invention, the AMR-WB coding call is still used under the condition of abnormal data configuration by carrying out the new judgment flow on the original call flow, so that the Volte end-to-end call quality of the user under the condition of the called is improved.
Further, on the basis of the above embodiment, the embodiment of the present invention provides a device for improving the end-to-end voice quality of Volte, which is used for executing the method for improving the end-to-end voice quality of Volte in the above method embodiment. Fig. 5 is a schematic flow chart of an apparatus for improving end-to-end voice quality according to an embodiment of the present invention, as shown in fig. 5, the apparatus includes: a first query module 501, a second query module 502, and a talk module 503; wherein,,
a first query module 501, configured to, after a calling side makes a call, make an Enum query on a called side by the calling side;
specifically, according to the device for improving the end-to-end voice quality of the embodiment, in the first query module 501, the Volte caller side performs a call flow, where the SDP carries an encoding mode that the caller side wants to use: the AMR-WB (Adaptive Multi-rate-Wideband) is a Wideband voice coding standard adopted by international standardization organizations ITU-T and 3GPP at the same time, the AMR-WB provides a voice bandwidth range reaching 50-7000 Hz, a user can subjectively feel more natural, comfortable and easy to distinguish voice than before, the AMR-NB is Adaptive Multi-rate coding, and is mainly used for audio frequency of mobile equipment, the compression ratio is larger, the quality is poorer than that of other compression formats, and the user experience is general;
the first query module 501 performs Enum query and DNS query on a called number, if the TEL-URI query on the called side can be translated into a SIP-URI, where the URI (Uniform Resource Identifier ) has two formats, namely a TEL URI and a SIP URI, and the URI is translated into an IP address through DNS to find a called home I-CSCF, then the called side is indicated to be an Enum account opening and Volte subscriber; if the called TEL-URI query cannot be translated into a SIP-URI, enum does not open an account, but cannot confirm whether it is a Volte subscriber.
The second query module 502 is configured to receive account opening query exception information fed back by the Enum server, address the HSS server through the DRA network, and query an IMS registration state of the called side and host information of the calling side;
specifically, according to the device for improving end-to-end voice quality in the embodiment, in the second query module 502, the Enum server feeds back the query result of the calling S-CSCF according to the query result, and for the Enum non-account opening abnormal user, the Enum non-account opening abnormal user directly feeds back the No such name; when the calling side receives abnormal information of account opening query fed back by the Enum server, a new flow of the embodiment of the invention is entered, the calling side S-CSCF does not transfer the call flow to the calling side MGCF, but the second query module 502 directly uses the User-Authorization Request to address the called home HSS server through the DRA network to query the IMS registration state of the called User, and the HSS server records the information of the User home allocation host name S-CSCF and the like after the IMS registration is completed. The DRA (Diameter Routing Agent, routing agent node) is responsible for the translation and transfer of LTE Diameter signaling destination address, and realizes authentication, location update and charging management of LTE users; a HSS (Home Subscriber Server ) supporting a main subscriber database for handling calling/session IMS network entities; IMS (IP Multimedia Subsystem) is an IP multimedia system, which is a brand new multimedia service format, and can meet the requirements of more novel and diversified multimedia services of terminal clients; the S-CSCF is a serving call session control function, a functional entity within the IMS.
And a call module 503, configured to receive IMS registered information fed back by the HSS server, transfer a call flow Invite to the called side, where the calling side and the called side call with wideband code AMR-WB.
Specifically, according to the device for improving voice end-to-end voice quality in the above embodiment, in the above call module 503, if the HSS Server queries that the called IMS is registered and obtains the home service S-CSCF, then the User-Authorization Answer is used to reply to the called IMS registration host Name of the calling side S-CSCF (called home S-CSCF, such as Server-Name: sip: ah.ims.mc000.mc460.3 gpp network.org: 5090) through the DRA network, after the calling side receives the IMS registered information fed back by the HSS Server, the call module 503 directly flows the call flow Invite to the called I-CSCF, where the SDP carries the coding mode that the call module 503 wants to use: including AMR-WB and AMR-NB. Once the wideband code AMR-WB is reported in the called side code negotiation, the calling and called calls can still be conducted with the wideband code AMR-WB. The subsequent flow is the same as the Volte end-to-end call flow, and will not be described in detail here, wherein the I-CSCF is an interrogating call session control function, which is a functional entity within the IMS.
It should be noted that, the device of the embodiment of the present invention may be used to execute the technical scheme of the embodiment of the method for improving the end-to-end voice quality of Volte, and its implementation principle and technical effects are similar, and are not repeated here.
The device for improving Volte end-to-end voice quality provided by the embodiment of the invention can save the AMR-WB coding call of the called party under the abnormal data configuration condition by adding the judging flow to the original call flow, and improve the Volte end-to-end call quality of the data abnormal configuration user (Enum does not open an account) under the called party condition
Examples are as follows:
fig. 6 is a schematic diagram of an entity structure of an electronic device according to an embodiment of the present invention, as shown in fig. 6, the electronic device may include: processor 610, communication interface (Communications Interface) 620, memory 630, and communication bus 640, wherein processor 610, communication interface 620, and memory 630 communicate with each other via communication bus 640. The processor 610 may call logic instructions in the memory 630 to perform the following methods: after a calling side calls, the calling side inquires about an Enum of a called side; receiving account opening inquiry abnormal information fed back by an Enum server, addressing an HSS server through a DRA network, and inquiring the IMS registration state of a called side and host information of a calling side; and receiving IMS registered information fed back by the HSS server, transferring a call flow Invite flow to the called side, and communicating with the called side by the calling side through broadband coding AMR-WB.
Further, the logic instructions in the memory 630 may be implemented in the form of software functional units and stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In another aspect, embodiments of the present invention further provide a non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor is implemented to perform the transmission method provided in the above embodiments, for example, including: after a calling side calls, the calling side inquires about an Enum of a called side; receiving account opening inquiry abnormal information fed back by an Enum server, addressing an HSS server through a DRA network, and inquiring the IMS registration state of a called side and host information of a calling side; and receiving IMS registered information fed back by the HSS server, transferring a call flow Invite flow to the called side, and communicating with the called side by the calling side through broadband coding AMR-WB.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A method for improving Volte end-to-end voice quality, comprising:
after a calling side calls, the calling side inquires about an Enum of a called side;
receiving account opening inquiry abnormal information fed back by an Enum server, addressing an HSS server through a DRA network, and inquiring the IMS registration state of a called side and host information of a calling side;
receiving IMS registered information fed back by the HSS server, transferring a call flow Invite flow to the called side, and communicating between the calling side and the called side by using a wideband code AMR-WB;
further comprises:
if the successful information of the account opening inquiry fed back by the Enum server is received, searching and finding the home I-CSCF of the called side through a DNS server, and transferring the call flow to the called side;
further comprises:
if the HSS server can not inquire the IMS registered information, receiving called side IMS unregistered information fed back by the HSS server through the DRA network;
further comprises:
the calling side transfers the call flow Invite to a calling side media gateway control function;
the calling side media gateway control function triggers the called anchor judgment flow.
2. The method for improving voice quality from end to end according to claim 1, wherein said querying the IMS registration status of the called side further comprises:
if the HSS server inquires to obtain the IMS registered information of the called side and the host information of the calling side;
and receiving the IMS registration state of the called side and the host information of the calling side fed back by the HSS through the DRA network.
3. The method for improving end-to-end voice quality of Volte according to claim 1, wherein after receiving the IMS registered information fed back by the HSS server, further comprising:
and initiating a called side home I-CSCF for distributing host name inquiry when initiating inquiry of the called side IMS registration process to the HSS server again.
4. The method for improving the end-to-end voice quality of Volte according to claim 3, further comprising:
and the calling side receives the home I-CSCF of the called side fed back by the HSS server.
5. An apparatus for improving Volte end-to-end voice quality, comprising:
the first query module is used for the calling side to query the called side for Enum after the calling side calls;
the second query module is used for receiving account opening query abnormal information fed back by the Enum server, addressing the HSS server through the DRA network, and querying the IMS registration state of the called side and the host information of the calling side;
the call module is used for receiving IMS registered information fed back by the HSS server, transferring call flow Invite to the called side, and making the call between the calling side and the called side be carried out by using a wideband code AMR-WB;
further comprises:
if the HSS server can not inquire the IMS registered information, receiving called side IMS unregistered information fed back by the HSS server through the DRA network;
further comprises:
the calling side transfers the call flow Invite to a calling side media gateway control function;
the calling side media gateway control function triggers the called anchor judgment flow.
6. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method for improving Volte end-to-end speech quality according to any of claims 1 to 4 when said program is executed by said processor.
7. A non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor performs the steps of the method of improving Volte end-to-end speech quality according to any of claims 1 to 4.
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