CN110446277B - VoWiFi service access method for dual-card terminal and terminal - Google Patents
VoWiFi service access method for dual-card terminal and terminal Download PDFInfo
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- CN110446277B CN110446277B CN201910615431.1A CN201910615431A CN110446277B CN 110446277 B CN110446277 B CN 110446277B CN 201910615431 A CN201910615431 A CN 201910615431A CN 110446277 B CN110446277 B CN 110446277B
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
- H04W8/20—Transfer of user or subscriber data
- H04W8/205—Transfer to or from user equipment or user record carrier
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
Abstract
The invention provides a dual-card terminal VoWiFi service access method and a terminal, wherein the method comprises the following steps: the public identity information of the B card is added into the identity information of the A card, the A card and the B card finish VoWiFi service binding, authentication, registration and subsequent service interaction of the VoWiFi service are initiated through the A card, and therefore only one PDP (packet data protocol) bearer can be established to finish support of dual-card VoWiFi service. The cost of resources such as the bearing of the double-card terminal and the network, signaling and the like is reduced, and the network load is reduced.
Description
Technical Field
The invention belongs to the field of communication, and particularly relates to a VoWiFi service access method and a VoWiFi service access terminal for a dual-card terminal.
Background
The existing VoWiFi schemes with commercial potential mainly include: the existing commercial VoWiFi schemes are mostly based on the untrustworthy hotspot. The main principle is that the UE is linked with any WiFi hotspot to acquire networking capability, the UE is connected with an EPDG network element to complete authentication of an AAA server, an IPSec tunnel is established with the ePDG to ensure communication security, then the ePDG acquires a user APN and subscription information to establish a PDP bearer to the EPC network, and IMS services such as registration, conversation and the like can be performed after the completion.
The application of the VoWiFi technology is more and more extensive, and the dual-card dual-standby dual-pass scheme can be well realized under the condition that no radio frequency antenna device is added. VoWiFi can play a greater role in the dual-card dual-standby service field, and a plurality of service forms can be provided, such as SIM card 1 residing in a mobile network, SIM card 2 registering VoWiFi; VoWiFi is registered as SIM1 and SIM 2; there are also a main card registration VoWiFi, a secondary card registration mobile network, etc. And two SIM cards belong to the same operator and both support the VoWiFi situation. At this time, the terminal may support VoWiFi with both cards and complete service registration, and the constructed ePDG addresses of the two cards of the same operator have the same domain name, and the ePDG and EPC networks serving the two cards are also the same server, that is, two PDP links with the same path are established.
Whether one PDP link can support the VoWiFi services of two SIM cards of one terminal or not is achieved, and the cost of resources such as bearing of the terminal and a network and signaling is reduced.
Disclosure of Invention
In view of the foregoing disadvantages of the prior art, an object of the present invention is to provide a VoWiFi service access method for a dual-card terminal and a terminal, which aim to solve the problem that in the prior art, two SIM cards of one terminal both support the VoWiFi service but need to establish two PDP links with the same path.
In order to achieve the purpose, the invention adopts the following technical scheme:
a dual-card terminal VoWiFi service access method is applied to a terminal, the terminal comprises an A card (a first subscriber identity identification card) and a B card (a second subscriber identity identification card) belonging to the same operator, and the A card and the B card belong to the same operator, and the method comprises the following steps:
acquiring the public identity information of the B card and adding the public identity information of the B card into the public identity information of the A card;
the a card initiates the registration of VoWiFi.
For the improvement of the present invention, the public identity information of the B card is IMPU _ V.
For the improvement of the invention, the registration of the VoWiFi initiated by the A card comprises the following steps:
when the A card initiates an SIP registration protocol registration message, the A card carries IMPU _ V of the B card at the same time and initiates registration to a VoWiFi network to which the A card belongs;
the core of IMS obtains the authentication vector of A card from the home subscriber server, after the core of IMS passes the verification;
the IMPI, IMPU and IP address of A card and IMPU _ V of B card are bound and synchronized to the registration state of IMPU and IMPU _ V of home subscriber server.
For the improvement of the invention, when the B card is a calling party, the encryption key and the integrity key during the authentication of the A card and the security mechanism of IPSec are used for encrypting and sending the signaling message of the SIP, wherein the calling party is IMPU _ V, and the called party is a specific SIM card number of the called party.
For the improvement of the invention, when the B card is the called party, the core of the IMS of the calling party inquires the IMPU of the called party as IMPU _ V through the home subscriber server, acquires the IP address corresponding to the IMPU _ V to complete the transmission of the signaling called message of the SIP and carry out the service response.
The present invention also provides a terminal, which includes an a card (first user identification card) and a B card (second user identification card), and is characterized in that the terminal further includes:
the acquisition unit is used for acquiring the public identity information of the B card;
the processing unit is used for adding the public identity information of the B card into the public identity information of the A card;
and the registration unit is used for initiating the registration of the VoWiFi by the A card.
For the improvement of the present invention, the public identity information of the B card is IMPU _ V.
For the improvement of the invention, the registration of the VoWiFi initiated by the A card comprises the following steps:
when the A card initiates an SIP registration protocol registration message, the A card carries IMPU _ V of the B card at the same time and initiates registration to a VoWiFi network to which the A card belongs;
the core of IMS obtains the authentication vector of A card from the home subscriber server, after the core of IMS passes the verification;
the IMPI, IMPU and IP address of A card and IMPU _ V of B card are bound and synchronized to the registration state of IMPU and IMPU _ V of home subscriber server.
For the improvement of the invention, the terminal further comprises:
the calling unit is used for the A card as a calling party or the B card as a calling party;
and when the B card is a calling party, encrypting and sending the signaling message of the SIP by using an encryption key, an integrity key and an IPSec security mechanism during authentication of the A card, wherein the calling party is IMPU _ V, and the called party is a specific called party SIM card number.
For the improvement of the invention, the terminal further comprises:
the distinguishing unit is used for distinguishing the A card as a called party or the B card as a called party;
when the B card is the called party, the core of the IMS of the calling party inquires the IMPU of the called party as IMPU _ V through the home subscriber server, acquires the IP address corresponding to the IMPU _ V to complete the transmission of the signaling called message of the SIP and carry out service response.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a dual-card terminal VoWiFi service access method and a terminal, wherein the method comprises the following steps: adding the public identity information of the B card into the identity information of the A card, completing the VoWiFi service binding of the A card and the B card, initiating the authentication, registration and subsequent service interaction of the VoWiFi service through the A card, and thus, only one PDP (packet data protocol) bearer can be established to complete the support of the dual-card VoWiFi service; the cost of resources such as the bearing of the double-card terminal and the network, signaling and the like is reduced, and the network load is reduced.
Drawings
Fig. 1 is a flow chart of a dual-card terminal VoWiFi service access method in the present invention;
fig. 2 is a block diagram schematically illustrating a structure of a terminal according to the present invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The application of the VoWiFi technology is more and more extensive, and the dual-card dual-standby dual-pass scheme can be well realized under the condition that no radio frequency antenna device is added. VoWiFi can play a greater role in the dual-card dual-standby service field, and a plurality of service forms can be provided, such as SIM card 1 residing in a mobile network, SIM card 2 registering VoWiFi; VoWiFi is registered as SIM1 and SIM 2; there are also a main card registration VoWiFi, a secondary card registration mobile network, etc. And two SIM cards belong to the same operator and both support the VoWiFi situation.
At this time, the terminal may support VoWiFi with both cards and complete service registration, the address domain names of the two SIM cards of the same operator are the same for the constructed ePDG (ePDG, Enhanced Packet Data Gateway, which is a Gateway when the terminal accesses the IMS network through the Wifi network), the ePDG and the EPC network (4G core network) serving the SIM cards are also the same servers, that is, two PDP links with the same path are established.
It should be noted that the two SIM cards (card a and card B) in this scheme must be SIM cards belonging to the same operator;
for the network, the user refers to the SIM card, and different cards are different users; for the terminal, the user is a person, and one terminal can have a plurality of SIM cards.
Whether a Packet Data Protocol (PDP link, which is a Data link for connecting a mobile phone to an IMS network to ensure service bearer and service quality) can support the VoWiFi service of two SIM cards of one terminal is possible, so as to reduce the overhead of resources such as bearer and signaling of the terminal and the network.
As shown in fig. 1, a dual-card terminal VoWiFi service access method is applied to a terminal, where the terminal includes an a card (a first subscriber identity module card, that is, a first SIM card) and a B card (a second subscriber identity module card, that is, a second SIM card) belonging to the same operator, and the method includes the following steps:
s10, acquiring the public identity information of the B card and adding the public identity information of the B card into the public identity information of the A card;
specifically, the public identity information of the B card is IMPU _ V.
It should be noted that IMPU is the IP multimedia public identity of the a card, and IMPU _ V is the IP multimedia public identity of the B card; the _ V in IMPU _ V is only for distinguishing a card from B card;
and S11, the card A initiates the registration of VoWiFi.
Specifically, the registering of the VoWiFi initiated by the a card includes:
when the A card initiates an SIP registration protocol registration message, the A card simultaneously carries IMPU _ V of the B card and initiates registration to a VoWiFi network to which the A card belongs;
the core of IMS (S-CSCF, provide the conversation control service for UE) obtains the authentication vector of A card to the Home Subscriber Server (HSS: Home Subscriber Server, the Server stores the subscription information of SIM card user, the authentication vector, the key and other data), and replies 401 unauthorized to UE, after the UE verifies the network is legal, the UE sends SIP registration protocol authentication registration again;
specifically, when performing VoWiFi registration, the UE needs to pass two-way authentication, that is, the UE identifies that the network is legal, and the network also needs to identify that the UE is legal; after the UE sends register registration, the network finds that the UE is not authenticated, so the network returns to 401 to let the UE authenticate, so the UE sends a second register to perform authentication registration;
after the core verification of the IMS is passed;
the IMPI (IP multimedia private identity), the IMPU (IP multimedia public identity), the IP address of the A card and the IMPU _ V of the B card are bound and synchronized to the registration states of the IMPU and the IMPU _ V of the home subscriber server.
Specifically, the description is given when the B card is used as a calling party, and an encryption key and an integrity key during authentication of the a card and a security mechanism of IPSec are used to encrypt and send a signaling (INVITE) message of SIP, where the calling party is an IMPU _ V (B card) and the called party is a specific SIM card number of the called party;
therefore, a calling service initiating VoWiFi under the B card can share a service bearer with the A card;
it should be noted that when the a card is the calling party, the method is the same as the conventional calling method, and is not described herein again.
Specifically, when the B card is a called party, the core (S-CSCF) of the IMS of the calling party (the calling party is a terminal of the opposite party in the call, and provides session control service for the UE) queries the IMPU of the called party as IMPU _ V through the home subscriber server, acquires an IP address corresponding to the IMPU _ V, completes transfer of a signaling (INVITE) called message of the SIP, and performs a service response.
It should be noted that in this scheme, the VoWiFi services of the a card and the B card both use the service network and bearer of the a card, and only the information of the B card is bound to the a card, and when the a card receives the called service invitation, it is determined whether the call is the a card or the B card, which is determined through the IMPU or IMPU _ V.
Referring to fig. 2, the present invention also provides a terminal including an a card (a first subscriber identity module card, i.e., a first SIM card) and a B card (a second subscriber identity module card, i.e., a second SIM card) belonging to the same operator, the terminal further including:
an obtaining unit 101, configured to obtain public identity information of a B card;
the processing unit 102 is configured to add the public identity information of the B card to the public identity information of the a card;
and the registration unit 103 is used for initiating the registration of the VoWiFi by the A card.
Specifically, the public identity information of the B card is IMPU _ V.
Specifically, the registering of the VoWiFi initiated by the a card includes:
when the A card initiates an SIP registration protocol registration message, the A card simultaneously carries IMPU _ V of the B card and initiates registration to a VoWiFi network to which the A card belongs;
the core of IMS obtains the authentication vector of the A card from the home subscriber server, replies 401 unauthorized to UE, and sends SIP registration protocol authentication registration again after the UE verifies that the network is legal;
after the core verification of the IMS is passed;
the IMPI, IMPU and IP address of A card and IMPU _ V of B card are bound and synchronized to the registration state of IMPU and IMPU _ V of home subscriber server.
Specifically, the terminal further includes:
a calling unit 104, configured to use the a card as a calling party or the B card as a calling party;
and when the B card is a calling party, encrypting and sending the signaling message of the SIP by using an encryption key, an integrity key and an IPSec security mechanism during authentication of the A card, wherein the calling party is IMPU _ V, and the called party is a specific called party SIM card number.
Specifically, the terminal further includes:
a discriminating unit 105 for discriminating that the a card is a called party or the B card is a called party;
when the B card is the called party, the core of the IMS of the calling party inquires the IMPU of the called party as IMPU _ V through the home subscriber server, acquires the IP address corresponding to the IMPU _ V to complete the transmission of the signaling called message of the SIP and carry out service response.
In summary, the public identity information of the B card is added to the identity information of the a card, the a card and the B card complete the VoWiFi service binding, and the a card initiates the authentication, registration and subsequent service interaction of the VoWiFi service, so that only one PDP bearer can be established to complete the support of the dual-card VoWiFi service; the cost of resources such as the bearing of the double-card terminal and the network, signaling and the like is reduced, and the network load is reduced.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.
Claims (6)
1. A dual-card terminal VoWiFi service access method is applied to a terminal, the terminal comprises an A card and a B card which belong to the same operator, and the method is characterized by comprising the following steps:
acquiring the public identity information of the B card and adding the public identity information of the B card into the public identity information of the A card;
the card A initiates registration of VoWiFi;
the registration of the VoWiFi initiated by the A card comprises that when the A card initiates an SIP registration protocol registration message, the A card simultaneously carries IMPU _ V of the B card and initiates registration to a VoWiFi network to which the A card belongs;
the core of IMS obtains the authentication vector of the A card from the home subscriber server, replies 401 unauthorized to UE, and sends SIP registration protocol authentication registration again after the UE verifies that the network is legal;
carrying out bidirectional authentication when the UE carries out VoWiFi registration, and after the core verification of the IMS is passed;
the IMPI, IMPU and IP address of A card and IMPU _ V of B card are bound and synchronized to the registration state of IMPU and IMPU _ V of home subscriber server.
2. The VoWiFi service access method of the dual-card terminal of claim 1, characterized in that when the B card is the calling party, the signaling message of SIP is sent by encryption using the encryption key, integrity key and IPSec security mechanism during authentication of the a card, the calling party is IMPU _ V, and the called party is the specific SIM card number of the called party.
3. The VoWiFi service access method of the dual-card terminal of claim 1, wherein when the B card is the called party, the core of the IMS of the calling party queries the IMPU of the called party as IMPU _ V through the home subscriber server, acquires the IP address corresponding to IMPU _ V to complete the transmission of the signaling called message of SIP, and performs the service response.
4. A terminal, the terminal includes A card and B card belonging to the same operator, characterized in that, the terminal also includes:
the acquisition unit is used for acquiring the public identity information of the B card;
the processing unit is used for adding the public identity information of the B card into the public identity information of the A card;
the registration unit is used for initiating the registration of VoWiFi by the card A;
the registration of the VoWiFi initiated by the A card comprises that when the A card initiates an SIP registration protocol registration message, the A card simultaneously carries IMPU _ V of the B card and initiates registration to a VoWiFi network to which the A card belongs;
the core of IMS obtains the authentication vector of the A card from the home subscriber server, replies 401 unauthorized to UE, and sends SIP registration protocol authentication registration again after the UE verifies that the network is legal;
carrying out bidirectional authentication when the UE carries out VoWiFi registration, and after the core verification of the IMS is passed;
the IMPI, IMPU and IP address of A card and IMPU _ V of B card are bound and synchronized to the registration state of IMPU and IMPU _ V of home subscriber server.
5. The terminal of claim 4, further comprising:
the calling unit is used for the A card as a calling party or the B card as a calling party;
and when the B card is a calling party, encrypting and sending the signaling message of the SIP by using an encryption key, an integrity key and an IPSec security mechanism during authentication of the A card, wherein the calling party is IMPU _ V, and the called party is a specific called party SIM card number.
6. The terminal of claim 4, further comprising:
the distinguishing unit is used for distinguishing the A card as a called party or the B card as a called party;
when the B card is the called party, the core of the IMS of the calling party inquires the IMPU of the called party as IMPU _ V through the home subscriber server, acquires the IP address corresponding to the IMPU _ V to complete the transmission of the signaling called message of the SIP and carry out service response.
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| CN201910615431.1A CN110446277B (en) | 2019-07-09 | 2019-07-09 | VoWiFi service access method for dual-card terminal and terminal |
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| CN201910615431.1A CN110446277B (en) | 2019-07-09 | 2019-07-09 | VoWiFi service access method for dual-card terminal and terminal |
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| CN111479309B (en) * | 2020-04-15 | 2022-04-12 | 维沃移动通信有限公司 | Service processing method, user equipment and computer readable storage medium |
| CN113242591B (en) * | 2021-05-06 | 2023-05-23 | 维沃移动通信有限公司 | Network access method and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104066109A (en) * | 2014-06-30 | 2014-09-24 | 中国联合网络通信集团有限公司 | Method, device and system for registration management of IMS network |
| CN106101078A (en) * | 2016-05-31 | 2016-11-09 | 宇龙计算机通信科技(深圳)有限公司 | A kind of IP Multimedia System, terminal and service implementation method |
| CN108965306A (en) * | 2018-07-25 | 2018-12-07 | 维沃移动通信有限公司 | A kind of call handling method and mobile terminal |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190159160A1 (en) * | 2016-05-03 | 2019-05-23 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and network nodes for providing ue location for vowifi calls |
| US10085274B2 (en) * | 2016-10-25 | 2018-09-25 | Qualcomm Incorporated | Apparatus and method of improving VoLTE/VT call setup successful rate in a DSDS device |
-
2019
- 2019-07-09 CN CN201910615431.1A patent/CN110446277B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104066109A (en) * | 2014-06-30 | 2014-09-24 | 中国联合网络通信集团有限公司 | Method, device and system for registration management of IMS network |
| CN106101078A (en) * | 2016-05-31 | 2016-11-09 | 宇龙计算机通信科技(深圳)有限公司 | A kind of IP Multimedia System, terminal and service implementation method |
| CN108965306A (en) * | 2018-07-25 | 2018-12-07 | 维沃移动通信有限公司 | A kind of call handling method and mobile terminal |
Non-Patent Citations (1)
| Title |
|---|
| "LTE语音业务及VoLTE外场测试的分析与研究";张惠波;《中国优秀博硕士学位论文全文数据库(硕士)信息科技I135-1辑》;20181015;全文 * |
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