CN102891900A - Domain name resolution method, device and system during traffic offloading - Google Patents
Domain name resolution method, device and system during traffic offloading Download PDFInfo
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- CN102891900A CN102891900A CN2012103510007A CN201210351000A CN102891900A CN 102891900 A CN102891900 A CN 102891900A CN 2012103510007 A CN2012103510007 A CN 2012103510007A CN 201210351000 A CN201210351000 A CN 201210351000A CN 102891900 A CN102891900 A CN 102891900A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/45—Network directories; Name-to-address mapping
- H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
- H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
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Abstract
The invention discloses a domain name resolution method, a domain name resolution device and a domain name resolution system during traffic offloading. The method comprises the following steps that: an internet protocol (IP) address of a first domain name resolution server is configured in wireless access network equipment, wherein the first domain name resolution server is positioned in public internet; the wireless access network equipment receives an address distribution message which is sent to a terminal by a core network, the address distribution message carries the IP address of a second domain name resolution server, and the IP address of the first domain name resolution server replaces the IP address of the second domain name resolution server to obtain a second address distribution message; and the wireless access network equipment sends the second address distribution message to the terminal, and the terminal performs domain name resolution according to the second address distribution message. By adoption of the method provided by the invention, during the traffic offloading, a user terminal can smoothly access a network in the conventional net mode without any modification, and a user experience is improved.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of method, Apparatus and system of domain name mapping when flow unloads.
Background technology
In the radio communication Access Network, user terminal is being configured to the Internet mode when doing data service, and the user obtains completely Internet access rights.Access point (Access Point Name, APN) is that the Internet online is a kind of mode of user terminal online.For example China Mobile network (China Mobile Net, CMNET) is the title of the access point of surfing Internet with cell phone use.It is the title (Access Point Name, APN) of the access point of China Mobile's GPRS network, can obtain completely Internet access right by CMNET, and the NAT service is provided.
DNS management system (Domain Name System, DNS), dns server in the effect of the Internet is: domain name is converted into the IP address that network can be identified.The website of the Internet all is that the form of a station server exists, when the Website server of access just need to be to every station server distributing IP address, website on the Internet is infinite many, the user can not remember the IP address of each website, this has just produced the DNS of convenience memory, the domain name easy to remember of user's input can be converted to the IP address of the server that will access, providing domain name mapping is the service of IP, thereby can enough brief and easy to remember domain name when the user is surfed the Net visits the main frame of the static IP on the Internet.
In the radio communication Access Network, terminal needs equipment of the core network to the IP of terminal distribution IP and dns server when doing data service.In order to realize terminal parsing to domain name when surfing the Net with the Internet mode.When flow unloaded, the packet of terminal was directly accessed Internet through wireless access network equipment, and packet is without core net.At this moment the IP address of the DNS of original configuration can not normally be used, and causes terminal flow offloading functions by the Internet mode time normally not use.
Summary of the invention
The embodiment of the invention provides a kind of method, Apparatus and system of domain name mapping when flow unloads, propose a kind of in the wireless access network communication equipment, passing through and revise configuration to the IP address of terminal domain name resolution server, reach the function that realizes domain name mapping when flow unloads.
For achieving the above object, the embodiment of the invention provides a kind of method of domain name mapping when flow unloads on the one hand, the IP address of configuration the first domain name resolution server in wireless access network equipment, described the first domain name resolution server is arranged in public Internet; Described wireless access network equipment receives the IP address assignment message that core net sends to terminal, the IP address of carrying described the second domain name resolution server in the described address assignment message; When described wireless access network equipment flow unloading, it is the IP address of described the first domain name resolution server that wireless access network equipment is revised the IP that described core net sends to the second domain name resolution server of terminal, in described flow unloading, the packet of described terminal can not send to equipment of the core network communication.The present invention configures IP address to the domain name resolution server of terminal, the function of domain name mapping when realizing the flow unloading by revise core net in wireless access network equipment; The method comprises, in described flow unloading:
Described wireless access network equipment receives the address assignment message that core net sends to terminal, the IP address of carrying described the second domain name resolution server in the described address assignment message;
Replace the IP address of described the second domain name resolution server with the IP address of described the first domain name resolution server, obtain the second address assignment message;
Described wireless access network equipment sends to terminal with described the second address assignment message, and terminal uses described the second address assignment message to carry out domain name mapping, thereby sets up terminal by the communication of wireless access network equipment access Internet.
The present invention also provides a kind of system of domain name mapping when flow unloads, and comprising:
The IP address of configuration the first domain name resolution server in wireless access network equipment, described the first domain name resolution server is arranged in public Internet; When described wireless access network equipment flow unloading, described wireless access network equipment receives the IP address assignment message that core net sends to terminal, the IP address of carrying described the second domain name resolution server in the described address assignment message.It is the IP address of described the first domain name resolution server that wireless access network equipment is revised the IP that described core net sends to the second domain name resolution server of terminal, and in described flow unloading, the packet of described terminal can not send to equipment of the core network communication; The method comprises, in described flow unloading;
Terminal, need not any modification, receive described the second address assignment message, use in described the second address assignment message and carry the IP address of described the second domain name resolution server as the IP address of address analyzing server, the domain name mapping when realizing user terminal access Internet;
The present invention also provides a kind of wireless access network equipment, it is characterized in that, comprising:
Dispensing unit is used for receiving the IP address configuration parameter of local the first domain name mapping configuration server that configures, and checks the legitimacy of IP address.The parameter of configuration comprises Main Domain resolution server IP address and auxiliary domain name resolution server IP address;
Receiving element is used for receiving the address assignment message that core net sends to terminal, the IP address of carrying described the second domain name resolution server in the described address assignment message when flow unloads;
Revise the unit, be used for the IP address of replacing the second domain name resolution server with the IP address of described the first domain name resolution server;
Transmitting element is used for described the second address assignment message is sent to terminal.
Compared with prior art, the present invention has the following advantages: domain name resolution server IP address in the configuration wireless access network equipment, by revising the IP address to the domain name resolution server of terminal, terminal need not any change, the function of domain name mapping when realizing the flow unloading.
Description of drawings
Technical scheme for the clearer explanation embodiment of the invention, the accompanying drawing of required use was done simple the introduction during the below will describe embodiment, apparent, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1: be the present invention a kind of when flow unloads the flow chart of the method for domain name mapping;
Fig. 2: be the present invention a kind of when flow unloads the structure chart of the system of domain name mapping;
Fig. 3: the structural representation that is a kind of wireless access network equipment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention; technical scheme in the embodiment of the invention is carried out clear, complete description; obvious described embodiment only is a part of embodiment of the present invention; not whole embodiment; based on the embodiment among the present invention; those of ordinary skills belong to the scope of protection of the invention not paying the every other embodiment that obtains under the creative work prerequisite.
The embodiment of the invention provides a kind of method of domain name mapping when flow unloads on the one hand, the IP address of configuration the first domain name resolution server in wireless access network equipment, and described the first domain name resolution server is arranged in public Internet; Described wireless access network equipment receives the IP address assignment message that core net sends to terminal, the IP address of carrying described the second domain name resolution server in the described address assignment message; When described wireless access network equipment flow unloading, it is the IP address of described the first domain name resolution server that wireless access network equipment is revised the IP that described core net sends to the second domain name resolution server of terminal, in described flow unloading, the packet of described terminal can not send to equipment of the core network communication; The method comprises, in described flow unloading; The specific implementation process comprises as shown in Figure 1, in described flow unloading:
Step 101: described wireless access network equipment configures the IP address of the first domain name resolution server, and checks the legitimacy of IP address.
Step 102: described wireless access network equipment receives the address assignment message that core net sends to terminal, the IP address of carrying described the second domain name resolution server in the described address assignment message;
Step 103: described wireless access network equipment, judge whether local flow offloading functions is opened;
Step 104: if local flow offloading functions is not opened, then the described core net of normal transmission sends to the address assignment message of terminal
Step 105: if local flow offloading functions is opened, described wireless access network equipment is revised IP address that described core net sends to the second domain name resolution server that carries in the address assignment message of terminal and is the IP address of the first domain name resolution server of configuration;
Step 106: described wireless access network equipment is revised the address assignment message that described core net sends to terminal and is obtained the second address assignment message; Described wireless access network equipment sends to terminal with described the second address assignment message.
Wherein, the address assignment message that described core net sends to terminal is specially: the packet message protocol activating is accepted message, or packet message agreement secondary activating is accepted message, or the packet message protocol modification is accepted message.
To issue the message of the IP address assignment of the IP address of terminal and DNS be that the packet message protocol activating is accepted message Activate PDP context accept or auxiliary packet message protocol activating is accepted message Activate Secondary PDP Context Accept or the packet message protocol modification is accepted message Modify PDP context accept etc. to core net in 3G network, and classes of messages seemingly in the 4G/LTE system.
When flow unloads, because packet does not pass through core net, but in wireless access network equipment, directly connect Internet, cause like this DNS of original configuration unavailable, therefore, the IP address of the DNS that configuration is correct in wireless access network equipment in advance, and so that this IP address is configurable, can revise.。
Wherein, the described IP address that configures the first domain name resolution server in wireless access network equipment comprises:
Configuration Main Domain resolution server IP address and auxiliary domain name resolution server IP address;
Check the Main Domain resolution server IP address of configuration and the legitimacy of auxiliary domain name resolution server IP address.
This example illustrates the detailed process that realizes domain name mapping under the CMNET mode by the IP address of the DNS that revises terminal as an example of the TD_SCDMA Home eNodeB example:
Steps A, the configuration Home eNodeB is that the flow offloading functions is opened, during the terminal online, send PDP activation request message (Activate PDP context request) to core net, core net response PDP activates and accepts message (Activate PDP context accept) to terminal, and carries the IP address of giving terminal (UE) and the IP address of DNS in this message.Home eNodeB is judged the flow offloading functions for opening, and intercepts PDP and activates and accept to revise wherein after message (the Activate PDP context accept) message value of the IP address of DNS is pre-configured value, then message is sent to terminal.
Step B, terminal receive PDP activate accept message (Activate PDP context accept) after, be the amended IP address value of Home eNodeB with the IP address configuration of DNS;
Step C, terminal will send the domain name mapping request message to the DNS of the IP of appointment when using the CMNET mode to surf the Net;
Step D, the PDCP module of Home eNodeB receives carries out the flow unloading behind the packet, and these packets are directly sent in the IP bag on the purpose IP address, has realized the unloading of local flow.
In addition, the present invention also provides a kind of system of domain name mapping when flow unloads, and as shown in Figure 2, this system comprises:
Wireless access network equipment 101, described wireless access network equipment are accepted the IP address of local configuration the first domain name resolution server, and check the legitimacy of IP address.Described wireless access network equipment receives the address assignment message that core net sends to terminal, the IP address of carrying described the second domain name resolution server in the described address assignment message; Described wireless access network equipment judges whether local flow offloading functions is opened; If local flow offloading functions is not opened, then the described core net of normal transmission sends to the address assignment message of terminal.If local flow offloading functions is opened, described wireless access network equipment is revised IP address that described core net sends to the second domain name resolution server that carries in the address assignment message of terminal and is the IP address of the first domain name resolution server of configuration; Described wireless access network equipment is revised the address assignment message that described core net sends to terminal and is obtained the second address assignment message; Described wireless access network equipment sends to terminal with described the second address assignment message;
Terminal 102 need not any modification, receives described address assignment message, and the IP address of carrying described the first domain name resolution server in the acquisition message;
The first domain name resolution server 103, this domain name resolution server are positioned on the public Internet, are used for the IP data according to wireless access network equipment 101 transmissions, return terminal 102 domain name mapping results by wireless access network equipment 101.
In addition, the present invention also provides a kind of wireless access network equipment, as shown in Figure 3, comprising:
Receiving element 1012 is used for receiving the address assignment message that core net sends to terminal, the IP address of carrying described the second domain name resolution server in the described address assignment message when flow unloads;
Revise unit 1013, be used for the IP address of the second domain name resolution server described in the described address assignment message is replaced with the IP address of the first domain name resolution server;
Transmitting element 1014 is used for described the second address assignment message is sent to terminal.
The beneficial effect that the technical scheme of the embodiment of the invention is brought is as follows: configuration is to the IP address of the domain name resolution server of terminal in the wireless access network equipment by revising, and the function of domain name mapping when realizing the flow unloading improves the user and experiences.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the unit in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the unit in the system can be distributed in the device of embodiment according to the embodiment description among the embodiment, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.A unit can be merged in the unit of above-described embodiment, also can further split into a plurality of subelements.
The invention described above embodiment sequence number does not represent the quality of embodiment just to description.
Above embodiment is only non-limiting in order to technical scheme of the present invention to be described, only with reference to preferred embodiment the present invention is had been described in detail.Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (5)
1. the method for a domain name mapping when flow unloads is characterized in that, the IP address of configuration the first domain name resolution server in wireless access network equipment, and described the first domain name resolution server is arranged in public Internet; Described wireless access network equipment receives the IP address assignment message that core net sends to terminal, the IP address of carrying described the second domain name resolution server in the described address assignment message; When described wireless access network equipment flow unloading, it is the IP address of described the first domain name resolution server that wireless access network equipment is revised the IP that described core net sends to the second domain name resolution server of terminal, in described flow unloading, the packet of described terminal can not send to equipment of the core network communication; The method comprises, in described flow unloading:
The address assignment message of described wireless access network equipment receiving terminal, the IP address of carrying described the second domain name resolution server in the described address assignment message;
Replace the IP address of the second domain name resolution server with the IP address of described the first domain name resolution server, obtain the second address assignment message;
Described wireless access network equipment sends to terminal with described the second address assignment message, and terminal is carried out domain name mapping according to narrating the second address assignment message, thereby finishes the communication that normal domain name mapping function, terminal normally access Internet.
2. the method for claim 1 is characterized in that, the address assignment message that described core net sends to terminal is specially: the packet message protocol activating is accepted message, or, auxiliary packet message protocol activating is accepted message, or the packet message protocol modification is accepted message.
3. the method for claim 1 is characterized in that, the described IP address that configures the first domain name resolution server in wireless access network equipment comprises:
Configuration Main Domain resolution server IP address and auxiliary domain name resolution server IP address;
Check the Main Domain resolution server IP address of configuration and the legitimacy of auxiliary domain name resolution server IP address.
4. the system of a domain name mapping when flow unloads is characterized in that, comprising:
Wireless access network equipment is used for receiving the IP address configuration parameter of local the first domain name resolution server that configures, and checks the legitimacy of the IP address of configuration.Receive the address assignment message that core net sends to terminal; And check whether local flow offloading functions is opened, if open, then revise the IP address of carrying described the second domain name resolution server in the address assignment message that core net sends to terminal; Replace the IP address of the second domain name resolution server with the IP address of described the first domain name resolution server, obtain the second address assignment message; Described the second address assignment message is sent to user terminal;
Terminal, need not any modification, be used for receiving described the second address assignment message, use in described the second address assignment message and carry the IP address of described the second domain name resolution server as the IP address of address analyzing server, the domain name mapping when realizing user terminal access Internet.
5. a wireless access network equipment is characterized in that, comprising:
Dispensing unit is used for receiving the IP address configuration parameter of local the first domain name mapping configuration server that configures, and checks the legitimacy of IP address.The parameter of configuration comprises Main Domain resolution server IP address and auxiliary domain name resolution server IP address;
Receiving element is used for receiving the address assignment message that core net sends to terminal, the IP address of carrying described the second domain name resolution server in the described address assignment message when flow unloads;
Revise the unit, be used for the IP address of replacing the second domain name resolution server with the IP address of described the first domain name resolution server;
Transmitting element is used for described the second address assignment message is sent to terminal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210351000.7A CN102891900B (en) | 2012-09-19 | 2012-09-19 | A kind of method, apparatus and system of the domain name mapping in flow unloading |
| PCT/CN2013/000212 WO2014044010A1 (en) | 2012-09-19 | 2013-03-01 | Method, device and system for domain name resolution during traffic offloading |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210351000.7A CN102891900B (en) | 2012-09-19 | 2012-09-19 | A kind of method, apparatus and system of the domain name mapping in flow unloading |
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| CN102891900A true CN102891900A (en) | 2013-01-23 |
| CN102891900B CN102891900B (en) | 2019-01-01 |
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| WO (1) | WO2014044010A1 (en) |
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| WO2014044009A1 (en) * | 2012-09-19 | 2014-03-27 | 邦讯技术股份有限公司 | Method, apparatus, and system for surfing internet in wap mode during flow unloading process |
| WO2014044010A1 (en) * | 2012-09-19 | 2014-03-27 | 邦讯技术股份有限公司 | Method, device and system for domain name resolution during traffic offloading |
| CN106534127A (en) * | 2016-11-18 | 2017-03-22 | 上海佰贝科技发展有限公司 | Login authentication control system and method |
| WO2017177381A1 (en) * | 2016-04-12 | 2017-10-19 | Intel Corporation | Solution for local breakout in cellular network |
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| CN101202702A (en) * | 2006-12-12 | 2008-06-18 | 华为技术有限公司 | Network flow quantity shunting method and network device |
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| WO2014044009A1 (en) * | 2012-09-19 | 2014-03-27 | 邦讯技术股份有限公司 | Method, apparatus, and system for surfing internet in wap mode during flow unloading process |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2014044010A1 (en) | 2014-03-27 |
| CN102891900B (en) | 2019-01-01 |
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