CN101141491A - Method and system for obtaining address of proxy call session control function entity - Google Patents
Method and system for obtaining address of proxy call session control function entity Download PDFInfo
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Abstract
The present invention discloses a method for getting a P-CSCF address and a system. The P-CSCF address or a P-CSCF domain name and a DNS address are configured on a DHCP agent comprised in an ASN-GW, or the P-CSC address or the P-CSCF domain name and the DNS address are got from other network element. After a terminal gets a local access IP address in a WiMAX network, a P-CSCF address request unit on the terminal and a P-CSCF address sending unit on the DHCP agent perform a message interaction, the P-CSCF address is got from the DHCP agent or the P-CSCF domain name and the DNS server are got. If the P-CSCF domain name is got, a DNS inquiring unit on the terminal inquires about the P-CSCF address for the DNS. Therefore, the acquisition flow of the P-CSCF address is simplified when the terminal accesses into an IMS through a WiMAX, the expansion of the message requires not to be performed.
Description
Technical field
The present invention relates to by global inserting of microwave interoperability (WiMAX, World Interoperabilityfor Microwave Access) technology of network insertion IP multi-media network (IMS) relates in particular to a kind of method and system thereof that obtains the address of Proxy Call Session Control Function (P-CSCF) entity by WiMAX network insertion IMS the time.
Background technology
WiMAX is based on the wireless access wide band technology of IEEE 802.16 standards, can effectively utilize the limited wireless frequency spectrum resource and bigger bandwidth of air-interface is provided, and has the data transmission capabilities that reaches as high as 70Mbps.Its network reference model as shown in Figure 1, by registration terminal/portable terminal (SS/MS), access business network (ASN) be connected three logic entities of business network (CSN) and form, each logic entity has been represented one group of functional entity, each function can be all at single physical equipment or be distributed in a plurality of physical equipments and realize.ASN is mainly WiMAX user corresponding wireless access and control is provided, and is made up of base station (BS) and access business network gateway (ASN-GW).CSN has comprised authentication, mandate, billing function (AAA) and home agent (HA) for MS provides IP Connection Service.BS links to each other with SS/MS by the R1 interface, and SS/MS links to each other with CSN by Interface R2; ASN-GW links to each other with CSN by Interface R3, and ASN links to each other with other ASN by Interface R4, and CSN links to each other with other CSN by the R5 interface.In Fig. 1, solid line is represented loading end, and dotted line is represented chain of command.
The WiMAX network requirement adopts mobile IP as mobility management protocol.In mobile IP framework, the ownership place IP address that mobile IP customer terminal is maintained fixed between different external agent (FA).Mobile IP protocol provides the IP routing service to public ip network for the mobile subscriber.Two kinds of different MIP agreements are supported in the mobile management of WiMAX network: client mobile IP (CMIP) and proxy-mobile IP (PMIP).
Dynamic host configuring protocol agent (DHCP Proxy) is as the functional entity of ASN-GW, for mobile IP terminal provides the DHCP proxy function.
Name server (DNS Server) is disposed by operator, is responsible for safeguarding the binding relationship of domain name and IP address.
Attribution authentication, mandate, billing function (HAAA) entity provide user data as the functional entity of CSN, and the user is carried out the authentication function.
Because the connection business network of WiMAX only provides the connection of IP layer, does not define service control function, and controlled telecommunication service can't be provided, therefore need realize with other ripe network integrations.IMS is the preferred network framework of IP operation of future generation, is the overall architecture of future development network, and its architectural framework has strengthened controllability and manageability based on IP stream, has represented the development trend of future network.Therefore WiMAX inserts a kind of important IP access network that will constitute the IMS network, can replenish the band-limited defective of other wireless access technologys effectively.
ASN-GW provides the gateway device that user radio inserts, and in the simple IP framework, also is the exit point that the WiMAX system is connected with the Internet or other system simultaneously.
P-CSCF is the primary entry point that the user inserts the IMS network, can select the user attaching network.Therefore when the user need insert IMS by the WiMAX system, need at first obtain the address of P-CSCF.
Existing by in the technology of WiMAX network insertion IMS, the P-CSCF address that does not have IMS in the WiMAX network, when SS/MS need pass through WiMAX access to netwoks IMS, just outside the WiMAX net, obtain the P-CSCF address by ASN-GW, owing to very loaded down with trivial details for obtaining the message interaction process of carrying out the P-CSCF address, and the message in the needs expansion existing standard, so the scheme duration of this existing P-CSCF of obtaining address, system effectiveness is low.
Summary of the invention
The invention provides a kind of method and system thereof of address of the P-CSCF of obtaining entity, terminal is directly obtained the address of the access point P-CSCF of IMS from the WiMAX network by ASN-GW, simplify the process of interacting message, and do not needed to expand the message in the existing standard.
On the one hand, the present invention proposes a kind of method of obtaining the address of proxy call conversation control function entity, is used for terminal by global inserting of microwave interoperability WiMAX network insertion IP multi-media network IMS.This method may further comprise the steps:
Step a, terminal is finished the WiMAX network access authentication and the IP address is inserted in this locality of obtaining in the WiMAX network;
Step b, terminal by with the WiMAX network in access business network gateway A SN-GW carry out interacting message, the address that directly from the WiMAX network, obtains Proxy Call Session Control Function P-CSCF entity in the IMS.
In the said method, step b is divided into following steps:
Step b01, terminal sends the address that message request is obtained the P-CSCF entity to DHCP proxy;
Step b02, DHCP proxy returns to terminal by message with the address of P-CSCF entity.
In the said method, the address of described P-CSCF entity is among the dynamic host configuration protocol DHCP agency who is configured on the ASN-GW, or the DHCP proxy on the ASN-GW disposes from the WiMAX network, and the network element of P-CSCF physical address obtains.
In the said method, step b is divided into following steps:
Step b11, terminal sends the address that message request is obtained the P-CSCF entity to DHCP proxy;
Step b12, DHCP proxy returns to terminal by message with the domain name of P-CSCF entity and the address of DNS;
Step b13, terminal is by inquiry DNS, the address that obtains the P-CSCF entity corresponding with the domain name of P-CSCF entity.
In the said method, the domain name of described P-CSCF entity and the address of domain name server (DNS) are among the dynamic host configuration protocol DHCP agency who is configured on the ASN-GW, or the DHCP proxy on the ASN-GW disposes from the WiMAX network, and the network element of P-CSCF entity domain name and dns address obtains.
In the said method, described terminal is the DHCP notification message to the message that DHCP proxy sends, and described DHCP proxy is the DHCP acknowledgement message to the message that terminal sends.
On the other hand, the present invention proposes a kind of system that obtains the address of proxy call conversation control function entity, be used for terminal by global inserting of microwave interoperability WiMAX network insertion IP multi-media network IMS, this system comprises each network element in terminal and the WiMAX network, one of them network element is access business network gateway A SN-GW, this ASN-GW comprises the dynamic host configuration protocol DHCP agency, wherein:
Network element in the described WiMAX network comprises memory cell, is used for preserving the address of IMS Proxy Call Session Control Function P-CSCF entity;
Described terminal comprises P-CSCF Address requests unit, and the P-CSCF address transmitting element that is used on DHCP proxy sends the address that message request is obtained the P-CSCF entity;
Described DHCP proxy comprises P-CSCF address transmitting element, is used to obtain the address of the P-CSCF entity that memory cell preserves, and is placed on the P-CSCF Address requests unit that returns in the message on the terminal.
In the said system, described memory cell is arranged on the DHCP proxy that WiMAX network ASN-GW comprises, and perhaps is arranged on other network elements of WiMAX network.
In the said system, described other network elements are attribution authentication, mandate, billing function HAAA entity.
Again on the one hand, a kind of system that obtains the address of proxy call conversation control function entity, be used for terminal by global inserting of microwave interoperability WiMAX network insertion IP multi-media network IMS, this system comprises each network element in terminal and the WiMAX network, one of them network element is access business network gateway A SN-GW, this ASN-GW comprises the dynamic host configuration protocol DHCP agency, wherein:
Network element in the described WiMAX network comprises memory cell, is used for preserving the domain name of IMS Proxy Call Session Control Function P-CSCF entity and the address of domain name server (DNS);
Described terminal comprises P-CSCF Address requests unit, and the P-CSCF address transmitting element that is used on DHCP proxy sends the address that message request is obtained the P-CSCF entity;
Described DHCP proxy comprises P-CSCF address transmitting element, is used to obtain the domain name of the P-CSCF entity that memory cell preserves and the address of DNS, and is placed on the P-CSCF Address requests unit that returns in the message on the terminal.
Described terminal comprises the DNS query unit, is used for the domain name of the P-CSCF entity that receives according to P-CSCF Address requests unit and the address of DNS and inquires about DNS, obtains the address of corresponding P-CSCF entity.
In the said system, described memory cell is arranged on the DHCP proxy that WiMAX network ASN-GW comprises, and perhaps is arranged on other network elements of WiMAX network.
In the said system, described other network elements are attribution authentication, mandate, billing function HAAA entity.
Advantage and characteristics that the present invention is main are as follows:
1. the present invention can dispose address or the domain name of configuration P-CSCF entity and the address of DNS of P-CSCF entity in the DHCP proxy on the ASN-GW in the WiMAX network, also can be in the WiMAX network other network elements, go up the address of the domain name of the address of configuration P-CSCF entity or P-CSCF entity and DNS and be distributed to DHCP proxy as HAAA from this network element.Therefore, terminal can directly be obtained the address of P-CSCF entity from the WiMAX network, thereby reaches the network by WiMAX network insertion IMS, use the purpose of IMS business, therefore simplified the message interaction process of the existing P-CSCF of obtaining address, the time spent is short, the system effectiveness height.
2. further, the domain name of the address of P-CSCF entity or P-CSCF entity and the address of DNS are kept in the DHCP proxy on the ASN-GW, therefore, terminal can directly be used the DHCP flow process to obtain the address of P-CSCF entity or obtain the domain name of P-CSCF entity and the address of DNS, do not need to carry out the expansion of message, very little to the existing network influence, be very easy to dispose and realize.
Description of drawings
Fig. 1 shows WiMAX network architecture reference model;
Fig. 2 is the flow chart of the embodiment of the invention 1 described P-CSCF address configuration terminal to obtain P-CSCF address under the situation on the ASN-GW;
Fig. 3 shows the flow chart of the embodiment of the invention 1 described P-CSCF address configuration terminal to obtain P-CSCF address under the situation on the HAAA;
Fig. 4 shows the composition structure of the system of the embodiment of the invention 1 described P-CSCF of obtaining address;
Fig. 5 is the flow chart that the embodiment of the invention 2 described P-CSCF domain names and dns address are configured in terminal to obtain P-CSCF address under the situation on the ASN-GW;
Fig. 6 is the flow chart that the embodiment of the invention 2 described P-CSCF domain names and dns address are configured in terminal to obtain P-CSCF address under the situation on the HAAA;
Fig. 7 shows the composition structure of the system of the embodiment of the invention 2 described P-CSCF of obtaining addresses.
Embodiment
Obtain the address of the access point P-CSCF entity of IMS for access business network gateway A SN-GW from the WiMAX network, can be on ASN-GW address or the domain name of configuration P-CSCF entity and the address of domain name server (DNS) of Configuration Agent CSCF P-CSCF entity, also can be from other network elements, as attribution authentication, mandate, billing function HAAA entity, obtain the address of P-CSCF entity or obtain the domain name of P-CSCF entity and the address of dns server, concrete functional entity is the dynamic host configuration protocol DHCP agency who comprises among the ASN-GW.This locality that terminal MS/SS obtains in the WiMAX network is inserted after the IP address, initiates the DHCP inquiry, obtains the address of P-CSCF entity or obtains the domain name of P-CSCF entity and the address of dns server from DHCP proxy.If what obtain is the domain name of P-CSCF entity, then terminal MS/SS inquires about the address of P-CSCF to DNS according to the domain name of P-CSCF entity.
Below, with reference to Fig. 2,3 and 4 embodiments of the invention 1 are described.
Fig. 2 is the flow chart that the embodiment of the invention 1 described P-CSCF address configuration terminal MS/SS under the situation on the ASN-GW obtains the P-CSCF physical address.The address of configuration P-CSCF entity on access business network gateway A SN-GW, concrete functional entity is a DHCP proxy.When terminal MS/SS finishes the WiMAX network access authentication and obtains after this locality in the WiMAX network inserts the IP address, initiate the address that dhcp process is obtained the P-CSCF entity:
Step S201, terminal MS/SS send the DHCP notification message to DHCP proxy, the address of acquisition request P-CSCF entity;
Step S202, DHCP proxy is placed on the address of P-CSCF entity in the DHCP acknowledgement message, returns to terminal MS/SS.
As shown in Figure 3, can be not on ASN-GW the address of configuration P-CSCF entity, but with the address configuration of P-CSCF entity on HAAA.Carry out in the process of WiMAX network access authentication at terminal MS/SS, HAAA is distributed to DHCP proxy on the ASN-GW with the address of P-CSCF entity.After DHCP proxy on the ASN-GW obtained the address of P-CSCF entity from HAAA, it is constant that terminal initiation dhcp process is obtained the flow process of P-CSCF physical address.
Correspondingly, the described system that obtains the P-CSCF physical address of the embodiment of the invention 1 as shown in Figure 4.This system comprises each network element in terminal and the WiMAX network, and one of them network element is ASN-GW, and this ASN-GW comprises DHCP proxy.One of each network element comprises memory cell 401 in the WiMAX network, and this terminal comprises P-CSCF Address requests unit 402, and this DHCP proxy comprises P-CSCF address transmitting element 403.Wherein:
On other network elements,, be used to preserve the address of P-CSCF entity on the DHCP proxy of memory cell 401 in ASN-GW or in the WiMAX network such as HAAA, the address of P-CSCF entity can manual configuration therein;
P-CSCF Address requests unit 402 on the terminal is used to send the DHCP notification message to the P-CSCF address transmitting element 403 on the DHCP proxy, the address of acquisition request P-CSCF entity;
P-CSCF address transmitting element 403 on the DHCP proxy is used to obtain the address of the P-CSCF entity that memory cell 401 preserved, and is placed on the P-CSCF Address requests unit 402 that returns in the DHCP acknowledgement message on terminal MS/SS.
Below, with reference to Fig. 5,6 and 7 embodiments of the invention 2 are described.
Fig. 5 is that the embodiment of the invention 2 described P-CSCF domain names and dns address are configured in the flow chart that terminal MS/SS under the situation on the ASN-GW obtains the P-CSCF physical address.The domain name of configuration P-CSCF entity and the address of dns server on ASN-GW, concrete functional entity is a DHCP proxy.When terminal MS/SS finishes the WiMAX network access authentication and obtains after this locality in the WiMAX network inserts the IP address, initiate the address that dhcp process is obtained the P-CSCF entity:
Step S501, terminal MS/SS send the DHCP notification message to DHCP proxy, the address of acquisition request P-CSCF entity;
Step S502, DHCP proxy is placed on the domain name of P-CSCF entity and the address of dns server in the DHCP acknowledgement message, returns to terminal MS/SS;
Step S503, terminal MS/SS inquires about by DNS, obtains the address of the P-CSCF entity corresponding with the domain name of P-CSCF entity.
As shown in Figure 6, can be not on ASN-GW the domain name of configuration P-CSCF entity and the address of dns server, but with the address configuration of the domain name of P-CSCF entity and dns server on HAAA.Carry out in the process of WiMAX network access authentication at terminal MS/SS, HAAA is distributed to DHCP proxy on the ASN-GW with the address of the domain name of P-CSCF entity and dns server.After DHCP proxy on the ASN-GW obtained the address of the domain name of P-CSCF entity and dns server from HAAA, terminal was initiated dhcp process and is obtained the address of the domain name of P-CSCF entity and dns server and obtain the flow process of P-CSCF physical address by the DNS inquiry constant.
Correspondingly, the described system that obtains the P-CSCF physical address of the embodiment of the invention 2 as shown in Figure 7.This system comprises each network element in terminal and the WiMAX network, and one of them network element is ASN-GW, and this ASN-GW comprises DHCP proxy.One of each network element comprises memory cell 701 in the WiMAX network, and this terminal comprises P-CSCF Address requests unit 702 and DNS query unit 704, and this DHCP proxy comprises P-CSCF address transmitting element 703.Wherein:
On other network elements,, be used to preserve the domain name of P-CSCF entity and the address of dns server on the DHCP proxy of memory cell 701 in ASN-GW or in the WiMAX network such as HAAA, P-CSCF domain name and dns address can manual configuration therein;
P-CSCF Address requests unit 702 on the terminal is used to send the DHCP notification message to the P-CSCF address transmitting element 703 on the DHCP proxy, the address of acquisition request P-CSCF entity;
P-CSCF address transmitting element 703 on the DHCP proxy is used to obtain the domain name of the P-CSCF entity that memory cell 701 preserved and the address of dns server, and is placed on the P-CSCF Address requests unit 702 that returns in the DHCP acknowledgement message on terminal MS/SS.
DNS query unit 704 on the terminal is used for the domain name of the P-CSCF entity that receives according to P-CSCF Address requests unit 702 and the address of dns server, the address that obtains corresponding P-CSCF entity by the DNS inquiry.
Technical scheme of the present invention also comprises other various embodiments, for example except ASN-GW and HAAA, can also dispose the address of P-CSCF entity or dispose the domain name of P-CSCF entity and the address of domain name server (DNS) on other network elements in the WiMAX network.
Under the situation that does not deviate from spirit of the present invention and essence thereof, various corresponding change that those of ordinary skill in the art make according to the present invention and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (12)
1. a method of obtaining the address of proxy call conversation control function entity is used for terminal by global inserting of microwave interoperability WiMAX network insertion IP multi-media network IMS, it is characterized in that this method may further comprise the steps:
Step a, terminal is finished the WiMAX network access authentication and the IP address is inserted in this locality of obtaining in the WiMAX network;
Step b, terminal by with the WiMAX network in access business network gateway A SN-GW carry out interacting message, the address that directly from the WiMAX network, obtains Proxy Call Session Control Function P-CSCF entity in the IMS.
2. the method for claim 1 is characterized in that, step b is divided into following steps:
Step b01, terminal sends the address that message request is obtained the P-CSCF entity to DHCP proxy;
Step b02, DHCP proxy returns to terminal by message with the address of P-CSCF entity.
3. method as claimed in claim 2, the address that it is characterized in that described P-CSCF entity is among the dynamic host configuration protocol DHCP agency who is configured on the ASN-GW, or the DHCP proxy on the ASN-GW disposes from the WiMAX network, and the network element of P-CSCF physical address obtains.
4. the method for claim 1 is characterized in that, step b is divided into following steps:
Step b11, terminal sends the address that message request is obtained the P-CSCF entity to DHCP proxy;
Step b12, DHCP proxy returns to terminal by message with the domain name of P-CSCF entity and the address of DNS;
Step b13, terminal is by inquiry DNS, the address that obtains the P-CSCF entity corresponding with the domain name of P-CSCF entity.
5. method as claimed in claim 4, the address that it is characterized in that the domain name of described P-CSCF entity and domain name server (DNS) is among the dynamic host configuration protocol DHCP agency who is configured on the ASN-GW, or the DHCP proxy on the ASN-GW disposes from the WiMAX network, and the network element of P-CSCF entity domain name and dns address obtains.
6. as claim 2 or 4 described methods, it is characterized in that described terminal is the DHCP notification message to the message that DHCP proxy sends, described DHCP proxy is the DHCP acknowledgement message to the message that terminal sends.
7. system that obtains the address of proxy call conversation control function entity, be used for terminal by global inserting of microwave interoperability WiMAX network insertion IP multi-media network IMS, this system comprises each network element in terminal and the WiMAX network, one of them network element is access business network gateway A SN-GW, this ASN-GW comprises the dynamic host configuration protocol DHCP agency, it is characterized in that
Network element in the described WiMAX network comprises memory cell, is used for preserving the address of IMS Proxy Call Session Control Function P-CSCF entity;
Described terminal comprises P-CSCF Address requests unit, and the P-CSCF address transmitting element that is used on DHCP proxy sends the address that message request is obtained the P-CSCF entity;
Described DHCP proxy comprises P-CSCF address transmitting element, is used to obtain the address of the P-CSCF entity that memory cell preserves, and is placed on the P-CSCF Address requests unit that returns in the message on the terminal.
8. system as claimed in claim 7 is characterized in that described memory cell is arranged on the DHCP proxy that WiMAX network ASN-GW comprises, and perhaps is arranged on other network elements of WiMAX network.
9. system as claimed in claim 8 is characterized in that described other network elements are attribution authentication, mandate, billing function HAAA entity.
10. system that obtains the address of proxy call conversation control function entity, be used for terminal by global inserting of microwave interoperability WiMAX network insertion IP multi-media network IMS, this system comprises each network element in terminal and the WiMAX network, one of them network element is access business network gateway A SN-GW, this ASN-GW comprises the dynamic host configuration protocol DHCP agency, it is characterized in that
Network element in the described WiMAX network comprises memory cell, is used for preserving the domain name of IMS Proxy Call Session Control Function P-CSCF entity and the address of domain name server (DNS);
Described terminal comprises P-CSCF Address requests unit, and the P-CSCF address transmitting element that is used on DHCP proxy sends the address that message request is obtained the P-CSCF entity;
Described DHCP proxy comprises P-CSCF address transmitting element, is used to obtain the domain name of the P-CSCF entity that memory cell preserves and the address of DNS, and is placed on the P-CSCF Address requests unit that returns in the message on the terminal.
Described terminal comprises the DNS query unit, is used for the domain name of the P-CSCF entity that receives according to P-CSCF Address requests unit and the address of DNS and inquires about DNS, obtains the address of corresponding P-CSCF entity.
11. system as claimed in claim 10 is characterized in that described memory cell is arranged on the DHCP proxy that WiMAX network ASN-GW comprises, and perhaps is arranged on other network elements of WiMAX network.
12. system as claimed in claim 11 is characterized in that described other network elements are attribution authentication, mandate, billing function HAAA entity.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101494795A CN100562026C (en) | 2007-08-08 | 2007-09-13 | Obtain the method and the system thereof of the address of proxy call conversation control function entity |
| PCT/CN2008/071134 WO2009033379A1 (en) | 2007-09-13 | 2008-05-29 | A method and system for obtaining an address of the p-cscf |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710140160.6 | 2007-08-08 | ||
| CN200710140160 | 2007-08-08 | ||
| CNB2007101494795A CN100562026C (en) | 2007-08-08 | 2007-09-13 | Obtain the method and the system thereof of the address of proxy call conversation control function entity |
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| CN101141491A true CN101141491A (en) | 2008-03-12 |
| CN100562026C CN100562026C (en) | 2009-11-18 |
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| CNB2007101494795A Expired - Fee Related CN100562026C (en) | 2007-08-08 | 2007-09-13 | Obtain the method and the system thereof of the address of proxy call conversation control function entity |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009033379A1 (en) * | 2007-09-13 | 2009-03-19 | Zte Corporation | A method and system for obtaining an address of the p-cscf |
| WO2010000130A1 (en) * | 2008-07-02 | 2010-01-07 | 中国移动通信集团公司 | A method and device of session control |
| CN101958906A (en) * | 2010-10-13 | 2011-01-26 | 中兴通讯股份有限公司 | Implementation method of IMS soft terminal and device thereof |
| CN102098673A (en) * | 2009-12-15 | 2011-06-15 | 中兴通讯股份有限公司 | Method and system for acquiring Internet protocol (IP) address of proxy call session control function (P-CSCF) server |
| CN101610151B (en) * | 2008-06-17 | 2012-11-21 | 华为技术有限公司 | Method and device for discovering general service interface server |
| CN108632936A (en) * | 2017-03-21 | 2018-10-09 | 中兴通讯股份有限公司 | A kind of method, UE and the PGW of anchoring core net |
| CN110048987A (en) * | 2018-01-15 | 2019-07-23 | 华为技术有限公司 | A kind of selection method, register method and the device of multimedia system entrance network element |
-
2007
- 2007-09-13 CN CNB2007101494795A patent/CN100562026C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009033379A1 (en) * | 2007-09-13 | 2009-03-19 | Zte Corporation | A method and system for obtaining an address of the p-cscf |
| CN101610151B (en) * | 2008-06-17 | 2012-11-21 | 华为技术有限公司 | Method and device for discovering general service interface server |
| WO2010000130A1 (en) * | 2008-07-02 | 2010-01-07 | 中国移动通信集团公司 | A method and device of session control |
| US8549153B2 (en) | 2008-07-02 | 2013-10-01 | China Mobile Communications Corporation | Method and device of session control |
| CN102098673A (en) * | 2009-12-15 | 2011-06-15 | 中兴通讯股份有限公司 | Method and system for acquiring Internet protocol (IP) address of proxy call session control function (P-CSCF) server |
| CN102098673B (en) * | 2009-12-15 | 2014-09-10 | 中兴通讯股份有限公司 | Method and system for acquiring Internet protocol (IP) address of proxy call session control function (P-CSCF) server |
| CN101958906A (en) * | 2010-10-13 | 2011-01-26 | 中兴通讯股份有限公司 | Implementation method of IMS soft terminal and device thereof |
| CN101958906B (en) * | 2010-10-13 | 2015-04-01 | 中兴通讯股份有限公司 | Implementation method of IMS soft terminal and device thereof |
| CN108632936A (en) * | 2017-03-21 | 2018-10-09 | 中兴通讯股份有限公司 | A kind of method, UE and the PGW of anchoring core net |
| CN110048987A (en) * | 2018-01-15 | 2019-07-23 | 华为技术有限公司 | A kind of selection method, register method and the device of multimedia system entrance network element |
| CN110048987B (en) * | 2018-01-15 | 2021-06-22 | 华为技术有限公司 | Selection method, registration method and device for multimedia system entrance network element |
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| Publication number | Publication date |
|---|---|
| CN100562026C (en) | 2009-11-18 |
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