CN102857985A - Server, terminal and network switching method - Google Patents
Server, terminal and network switching method Download PDFInfo
- Publication number
- CN102857985A CN102857985A CN2012103566712A CN201210356671A CN102857985A CN 102857985 A CN102857985 A CN 102857985A CN 2012103566712 A CN2012103566712 A CN 2012103566712A CN 201210356671 A CN201210356671 A CN 201210356671A CN 102857985 A CN102857985 A CN 102857985A
- Authority
- CN
- China
- Prior art keywords
- network
- terminal
- address
- data
- switching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention provides a server which comprises a judgment unit and a control unit, wherein the judgment unit is used for judging whether a terminal builds a data connection with a first network and is allocated with a first IP (Internet Protocol) address when receiving a connecting request from a second network of a terminal; and the control unit is connected with the judgment unit, when the judgment result of the judgment unit is yes, distributing the second IP address to a terminal building a data connection with the second network, and switching off the data connection of the terminal with the first network, the first IP address and the second IP address are the same. The invention also provides a terminal and a network switching method. According to the technical scheme provided by the invention, when switching is carried out among different communication system networks, the IP address of the terminal can not be changed, and thus the ongoing business data can not be interrupted, and the seamless switching is realized.
Description
Technical field
The present invention relates to the mobile communication technology field, in particular to server, terminal and method for switching network.
Background technology
At Wi-Fi(Wireless Fidelity), 4G(the 4th third-generation mobile communication technology), 3G(3G (Third Generation) Moblie technology) etc. the coexistence net environment, multimode terminal can switch between multimode when carrying out data traffic transmission.Although multimode terminal when carrying out data traffic transmission, can switch at each intermode, switching can cause ongoing transfer of data to be interrupted, and upper layer communication is used and need to be reconnected, if use without the breakpoint transmission ability, data will re-start transmission.
Therefore, need a kind of network handoff technique, can guarantee that in handover network business datum can not interrupt, upper layer communication is used and be need not to reconnect, and realizes seamless switching.
Summary of the invention
For the problems referred to above, the invention provides a kind of network handoff technique, can guarantee that in handover network business datum can not interrupt, upper layer communication is used and be need not to reconnect, and realizes seamless switching.
According to an aspect of the present invention, provide a kind of server, having comprised: judging unit, when receiving the second network connection request of self terminal, judge that whether described terminal set up data with first network and be connected and be assigned an IP address; Control unit, be connected to described judging unit, in the judged result of described judging unit when being, the second IP address assignment is set up the described terminal that data are connected with described second network, and disconnect described terminal and be connected with the data of described first network, wherein, a described IP address is identical with described the 2nd IP address.
Pass through technique scheme, terminal after handover network is given in the IP address that network before will switching when handover network is given terminal, so that the IP address of terminal does not change before and after switching, therefore, upper layer communication is used and be need not to reconnect, can guarantee that business datum can not interrupt, realize seamless switching truly.
In technique scheme, preferred, described control unit when the determination result is NO, is described terminal Random assignment IP address at described judging unit.
According to a further aspect in the invention, a kind of terminal has also been proposed, comprise: communication unit, when foundation is connected with the data of first network, obtain the IP address that is assigned to, and when the need handover network, send the second network connection request to server, obtaining described server is the described IP address of described terminal distribution, set up with described IP address to be connected with the data of described second network, and disconnection is connected with the data of described first network.Can the IP management function be set at network side, the IP that distributes before switching be redistributed to the terminal behind the handover network, so that the IP address that terminal is obtained is all identical.
In technique scheme, preferred, can also comprise: judging unit, judge whether the IP address that connects with described second network is identical with the IP address that is connected with described first network; Notification unit, when being, the application layer to described terminal sends the suspension notice in the judged result of described judging unit.Terminal can judge whether twice IP address is identical, if identical, then need not to notify application layer, does not need to rebulid data and connects, and ongoing transfer of data can interrupt.
In above-mentioned arbitrary technical scheme, preferred, described notification unit is at described judging unit when the determination result is NO, sends described disconnection notice to the application layer of described terminal, and described application layer rebulids data and connects.If the IP address is not identical, so just need the notice application layer, need to rebulid data, ongoing transfer of data interrupt.
In above-mentioned arbitrary technical scheme, preferred, described terminal comprises multi-mode and multi-standby mobile terminal and multimode single-standby mobile terminal.
According to another aspect of the invention, also proposed a kind of method for switching network, having comprised: step 302, when receiving the second network connection request of self terminal, judge that whether described terminal set up data with first network and be connected and be assigned the IP address; Step 304 when being, is set up the described terminal that data are connected with described IP address assignment with described second network in judged result, and disconnects described terminal and be connected with the data of described first network.Can the IP management function be set at network side, the IP that distributes before switching be redistributed to the terminal behind the handover network, so that the IP address that terminal is obtained is all identical.
In technique scheme, preferred, when the determination result is NO, be described terminal Random assignment IP address described.
In accordance with a further aspect of the present invention, also proposed a kind of method for switching network, having comprised: step 402, when foundation is connected with the data of first network, obtain the IP address that is assigned to; Step 404, when the need handover network, terminal to server sends the second network connection request, and obtaining described server is the described IP address of described terminal distribution, described terminal is set up with described IP address and is connected with the data of described second network, and disconnection is connected with the data of described first network.
When the terminal handover network, the terminal behind the handover network is given in the IP address that the network of server before will switching given terminal, so that the IP address of terminal does not change before and after switching, therefore, the upper layer communication of terminal is used and be need not to reconnect, can guarantee that business datum can not interrupt, realize seamless switching truly.
In technique scheme, preferably, described step 404 can also comprise, judges whether the IP address that connects with described second network is identical with the IP address that is connected with described first network, if judged result is yes, then do not notify to the application layer transmission suspension of described terminal.
In above-mentioned arbitrary technical scheme, preferred, in the described situation that the determination result is NO, send described disconnection notice to the application layer of described terminal, described application layer rebulids data and connects.
According to technical scheme of the present invention, the IP address that makes network distribute to terminal before and after switching remains unchanged, so upper layer application need not to rebulid data and connect, thereby has guaranteed that ongoing business datum can not interrupt, and realizes seamless switching truly.
Description of drawings
Fig. 1 shows the according to an embodiment of the invention block diagram of server;
Fig. 2 shows the according to an embodiment of the invention schematic diagram of terminal;
Fig. 3 shows the flow chart of method for switching network according to an embodiment of the invention;
Fig. 4 shows the flow chart of method for switching network according to still another embodiment of the invention;
Fig. 5 shows according to the again flow chart of the method for switching network of an embodiment of the present invention.
Embodiment
In order more clearly to understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments the present invention is further described in detail.
A lot of details have been set forth in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not subjected to the restriction of following public specific embodiment.
The present invention will be further described below in conjunction with drawings and Examples.Need to prove that in the situation of not conflicting, the application's embodiment and the feature among the embodiment can make up mutually.
Fig. 1 shows the according to an embodiment of the invention block diagram of server.
As shown in Figure 1, server 100 comprises according to an embodiment of the invention: judging unit 102, when receiving the second network connection request of self terminal, judge that whether terminal set up data with first network and be connected and be assigned an IP address; Control unit 104 is connected to judging unit 102, in the judged result of judging unit 102 when being, the second IP address assignment is set up the terminal that data are connected with second network, and disconnected end is connected with the data of first network, and wherein, an IP address is identical with the 2nd IP address.
Pass through technique scheme, terminal after handover network is given in the IP address that network before will switching when handover network is given terminal, so that the IP address of terminal does not change before and after switching, therefore, upper layer communication is used and be need not to reconnect, can guarantee that business datum can not interrupt, realize seamless switching truly.
In technique scheme, preferred, control unit 104 when the determination result is NO, is terminal Random assignment IP address at judging unit.
Fig. 2 shows the according to an embodiment of the invention schematic diagram of terminal.
As shown in Figure 2, terminal 200 comprises according to an embodiment of the invention: communication unit 202, when foundation is connected with the data of first network, obtain the IP address that is assigned to, and when the need handover network, usual practice server 100 as shown in fig. 1 sends the second network connection request, and obtaining server is the IP address of terminal distribution, be connected with the data of second network with the foundation of IP address, and disconnection is connected with the data of described first network.Can the IP management function be set at network side, the IP that distributes before switching be redistributed to the terminal behind the handover network, so that the IP address that terminal is obtained is all identical.
In technique scheme, preferred, can also comprise: judging unit 204, judge whether the IP address that connects with described second network is identical with the IP address that is connected with described first network; Notification unit 206, when being, the application layer to described terminal sends the suspension notice in the judged result of described judging unit 204.Terminal can judge whether twice IP address is identical, if identical, then need not to notify application layer, does not need to rebulid data and connects, and ongoing transfer of data can interrupt.
In above-mentioned arbitrary technical scheme, preferred, described notification unit 206 is at described judging unit 204 when the determination result is NO, sends described disconnection notice to the application layer of described terminal, and described application layer rebulids data and connects.If the IP address is not identical, so just need the notice application layer, need to rebulid data, ongoing transfer of data interrupt.
In above-mentioned arbitrary technical scheme, preferred, described terminal 100 comprises multi-mode and multi-standby mobile terminal and multimode single-standby mobile terminal.
Fig. 3 shows the flow chart of method for switching network according to an embodiment of the invention.
As shown in Figure 3, method for switching network according to an embodiment of the invention comprises: step 302, when receiving the second network connection request of self terminal, judge that whether terminal set up data with first network and be connected and be assigned the IP address; Step 304 when being, IP address assignment is set up the terminal that data are connected with second network, and disconnected end is connected in judged result with the data of first network.
Can the IP management function be set at network side, the IP that distributes before switching be redistributed to the terminal behind the handover network, so that the IP address that terminal is obtained is all identical.
In technique scheme, preferred, when the determination result is NO, be described terminal Random assignment IP address.
Fig. 4 shows the flow chart of method for switching network according to still another embodiment of the invention.
As shown in Figure 4, method for switching network according to an embodiment of the invention comprises: step 402, setting up when being connected with the data of first network, obtain the IP address that is assigned to; Step 404, when the need handover network, terminal to server sends the second network connection request, and obtaining server is the IP address of terminal distribution, and terminal is set up with the IP address and is connected with the data of second network, and disconnection is connected with the data of first network.
When the terminal handover network, the terminal behind the handover network is given in the IP address that the network of server before will switching given terminal, so that the IP address of terminal does not change before and after switching, therefore, the upper layer communication of terminal is used and be need not to reconnect, can guarantee that business datum can not interrupt, realize seamless switching truly.
In technique scheme, preferably, described step 404 can also comprise, judges whether the IP address that connects with described second network is identical with the IP address that is connected with described first network, if judged result is yes, then do not notify to the application layer transmission suspension of described terminal.
In above-mentioned arbitrary technical scheme, preferred, in the described situation that the determination result is NO, send described disconnection notice to the application layer of described terminal, described application layer rebulids data and connects.
Next further specify according to technical scheme of the present invention in conjunction with Fig. 5.
Fig. 5 shows according to the again flow chart of the method for switching network of an embodiment of the present invention.
In this embodiment, switch to example with the two network data communications of CDMA, LTE, illustrate how to realize seamless switching.
In step 502, at first, do not have only having cdma network under the environment of LTE network, cdma network (i.e. network A among the figure) is registered, and obtains the IP address Q of distribution.In step 504, the user starts web application, Email (Email) for example, and this moment, email application carried out data communication by cdma network, such as receiving mail.
Whether in step 506, in receiving the process of mail, the user moves to the position of a LTE network coverage, inquire about this LTE network (being network B) and exist, and being judged as when being, enters step 508, being judged as when no, finishes this flow process.
In step 508, according to the preferential setting of multimode terminal, will be registered to the LTE network this moment, and data service is switched to the LTE network, obtain the IP address Q that is assigned to.Be the continuity (receiving mail can not interrupt) that guarantees that upper layer network is used, initiatively take the strategy of following switching this moment in the carrier network side:
As shown in Figure 5, in the newly-increased IP address of terminal management system of network side, by the IP address of IP address of terminal management system office terminal, so that the IP address that terminal still is consistent behind handover network.In step 512, obtain user terminal and cdma network and set up the IP address Q that data are connected and become the distribution of work; In step 514, when receiving the LTE connection request, this user terminal in connecting, CDMA is obtained the IP address of distribution, and distribute and give the LTE network connection; Then the CDMA data of disconnect user terminal connect.
Flow process for end side: in step 510, after LTE access and the connection, judge whether the IP address of LTE is the same with the IP address of former CDMA, if the same, then upper layer application is not sent suspension and the notice of again connecting to network; The flow process of user's side, after showing as registration LTE success, the CDMA connection has been disconnected, and the IP address of network interface layer is constant, the data packet transceive of upper layer application (for example Email) is still undertaken by original IP address, transmission that therefore can the interrupting service data.If different, then upper layer application is sent suspension and the notice of again connecting to network, the transmission of meeting this moment interrupting service data.Therefore, when the multimode terminal service data was professional, if the reasons such as network condition variation need data service to switch at two intermodules, this programme can be realized the seamless switching of bottom data link, the guarantee upper layer network is used and can not interrupted, and what the user experienced is continuous network function.
More than be described with reference to the accompanying drawings according to technical scheme of the present invention, the IP address that makes network switching front and back distribute to terminal remains unchanged, therefore upper layer application need not to rebulid the data connection, thereby guaranteed that ongoing business datum can not interrupt, realized seamless switching truly.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a server is characterized in that, comprising:
Judging unit when receiving the second network connection request of self terminal, judges that whether described terminal set up data with first network and be connected and be assigned an IP address;
Control unit, be connected to described judging unit, in the judged result of described judging unit when being, the second IP address assignment is set up the described terminal that data are connected with described second network, and disconnect described terminal and be connected with the data of described first network, wherein, a described IP address is identical with described the 2nd IP address.
2. described server according to claim 1 is characterized in that, described control unit when the determination result is NO, is described terminal Random assignment IP address at described judging unit.
3. a terminal is characterized in that, comprising:
Communication unit, when foundation is connected with the data of first network, obtain the IP address that is assigned to, and when the need handover network, send the second network connection request to server, obtaining described server is the described IP address of described terminal distribution, set up with described IP address to be connected with the data of described second network, and disconnection is connected with the data of described first network.
4. terminal according to claim 3 is characterized in that, also comprises: judging unit, judge whether the IP address that connects with described second network is identical with the IP address that is connected with described first network;
Notification unit, when being, the application layer to described terminal sends the suspension notice in the judged result of described judging unit.
5. terminal according to claim 4 is characterized in that, described notification unit is at described judging unit when the determination result is NO, sends described disconnection notice to the application layer of described terminal, and described application layer rebulids data and connects.
6. a method for switching network is characterized in that, comprising:
Step 302 when receiving the second network connection request of self terminal, judges that whether described terminal set up data with first network and be connected and be assigned the IP address;
Step 304 when being, is set up the described terminal that data are connected with described IP address assignment with described second network in judged result, and disconnects described terminal and be connected with the data of described first network.
7. method for switching network according to claim 6 is characterized in that, when the determination result is NO, is described terminal Random assignment IP address described.
8. a method for switching network is characterized in that, comprising:
Step 402 when foundation is connected with the data of first network, is obtained the IP address that is assigned to;
Step 404, when the need handover network, terminal to server sends the second network connection request, and obtaining described server is the described IP address of described terminal distribution, described terminal is set up with described IP address and is connected with the data of described second network, and disconnection is connected with the data of described first network.
9. method for switching network according to claim 8, it is characterized in that, described step 404 also comprises, judge whether the IP address that connects with described second network is identical with the IP address that is connected with described first network, if judged result is yes, then do not notify to the application layer transmission suspension of described terminal.
10. method for switching network according to claim 9 is characterized in that, in the described situation that the determination result is NO, sends described disconnection notice to the application layer of described terminal, and described application layer rebulids data and connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103566712A CN102857985A (en) | 2012-09-21 | 2012-09-21 | Server, terminal and network switching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103566712A CN102857985A (en) | 2012-09-21 | 2012-09-21 | Server, terminal and network switching method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102857985A true CN102857985A (en) | 2013-01-02 |
Family
ID=47404093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103566712A Pending CN102857985A (en) | 2012-09-21 | 2012-09-21 | Server, terminal and network switching method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102857985A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104185228A (en) * | 2013-05-28 | 2014-12-03 | 中国电信股份有限公司 | Method and system for searching network |
| WO2017128185A1 (en) * | 2016-01-28 | 2017-08-03 | 华为技术有限公司 | Method and terminal for controlling service connection |
| CN110049523A (en) * | 2019-04-26 | 2019-07-23 | 新华三技术有限公司 | Access control, access point connection method, device and electronic equipment |
| CN110366169A (en) * | 2018-09-13 | 2019-10-22 | 新华三技术有限公司 | Loaming method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007092617A2 (en) * | 2006-02-09 | 2007-08-16 | Starent Networks Corporation | Fast handoff support for wireless networks |
| CN101040463A (en) * | 2004-10-11 | 2007-09-19 | 三星电子株式会社 | Hand-off system and method of dual mode mobile for connecting mobile communication system and wireless lan |
| CN101730175A (en) * | 2009-06-11 | 2010-06-09 | 中兴通讯股份有限公司 | Network switching method and system of WiMAX and 3GPP Pre-R8 double-mode terminal |
| CN102421159A (en) * | 2011-12-19 | 2012-04-18 | 华为终端有限公司 | Method and system for switching dual-mode communication terminal |
-
2012
- 2012-09-21 CN CN2012103566712A patent/CN102857985A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101040463A (en) * | 2004-10-11 | 2007-09-19 | 三星电子株式会社 | Hand-off system and method of dual mode mobile for connecting mobile communication system and wireless lan |
| WO2007092617A2 (en) * | 2006-02-09 | 2007-08-16 | Starent Networks Corporation | Fast handoff support for wireless networks |
| CN101730175A (en) * | 2009-06-11 | 2010-06-09 | 中兴通讯股份有限公司 | Network switching method and system of WiMAX and 3GPP Pre-R8 double-mode terminal |
| CN102421159A (en) * | 2011-12-19 | 2012-04-18 | 华为终端有限公司 | Method and system for switching dual-mode communication terminal |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104185228A (en) * | 2013-05-28 | 2014-12-03 | 中国电信股份有限公司 | Method and system for searching network |
| WO2017128185A1 (en) * | 2016-01-28 | 2017-08-03 | 华为技术有限公司 | Method and terminal for controlling service connection |
| CN108141901A (en) * | 2016-01-28 | 2018-06-08 | 华为技术有限公司 | The method and terminal of control service connection |
| EP3379889A4 (en) * | 2016-01-28 | 2018-10-31 | Huawei Technologies Co., Ltd. | Method and terminal for controlling service connection |
| CN110366169A (en) * | 2018-09-13 | 2019-10-22 | 新华三技术有限公司 | Loaming method and device |
| WO2020052642A1 (en) * | 2018-09-13 | 2020-03-19 | 新华三技术有限公司 | Roaming |
| CN110366169B (en) * | 2018-09-13 | 2021-02-26 | 新华三技术有限公司 | Roaming method and device |
| US11665266B2 (en) | 2018-09-13 | 2023-05-30 | New H3C Technologies Co., Ltd. | Roaming by binding a host with a device identifier |
| CN110049523A (en) * | 2019-04-26 | 2019-07-23 | 新华三技术有限公司 | Access control, access point connection method, device and electronic equipment |
| CN110049523B (en) * | 2019-04-26 | 2021-09-21 | 新华三技术有限公司 | Access control method, access point connection method, access control device, access point connection device and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6443511B2 (en) | Base station, control method thereof, and communication system | |
| CN110167051B (en) | Communication method and communication equipment under centralized unit-distributed unit architecture | |
| CN101925042B (en) | Method and system for controlling tunnel identifier allocation and devices | |
| US11129054B2 (en) | Methods, systems and devices for supporting local breakout in small cell architecture | |
| US7016325B2 (en) | Link context mobility method and system for providing such mobility, such as a system employing short range frequency hopping spread spectrum wireless protocols | |
| CN102083136B (en) | Wireless network control method and wireless controller | |
| CN110809299B (en) | Mode switching method of broadcast service and related device | |
| US20130051348A1 (en) | Data transmission device and method, and communication system | |
| JP5778861B2 (en) | Method and system for supporting multiple interface multiple connection communication | |
| WO2006080749A1 (en) | Handoff system and method of dual mode mobile for connecting mobile communication system and wireless network | |
| CN104918288A (en) | Flow sharing method, device and system | |
| KR101514955B1 (en) | Method for changing the wireless access point associated with a terminal in a wifi-dect wireless telecommunications network | |
| CN105554854A (en) | WIFI switching method and system in local area network | |
| CN104349402A (en) | Terminal switching method supporting D2D technology, communication node, terminal and system | |
| CN103402230A (en) | Method and system for surfing Internet through mobile hot spots | |
| CN102244912A (en) | Method and system for switching networks | |
| CN103686909A (en) | Method for achieving seamless service switching between cellular network and wireless local area network | |
| EP2966898A1 (en) | Radio resource management method, macro base station, and low-power node | |
| CN103369709B (en) | A kind of PDN connection establishment method and apparatus | |
| KR20140117963A (en) | Method and apparatus of traffic control in next generation mobile communication system | |
| CN102857985A (en) | Server, terminal and network switching method | |
| CN103384365A (en) | Method and system for network access, method for processing business and equipment | |
| CN103096391A (en) | Resource optimization method and device under multiple public data network (PDN) connections | |
| AU2013324784A1 (en) | Method and device for increasing gateway capacity in LTE mode Femto cell system | |
| CN102892157B (en) | WLAN keeps the method and system of continuation when switching to WLAN or 3G |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130102 |