CN101202702A - Network flow quantity shunting method and network device - Google Patents
Network flow quantity shunting method and network device Download PDFInfo
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Abstract
The invention provides a network flow shunting method and a network device. The method includes the steps that after receiving the information comprising the name of uniform access point, a gateway GPRS supporting node analyzes the information; according to the property or numerical value of an analyzed cell, the name of a sub access point corresponding to the property or numerical value of the gateway GPRS supporting node is selected for the using to activate the context. The invention can realize the function of shunting the flow in the same APN into different external networks and has low cost.
Description
Technical field
The present invention relates to a kind of communication means and equipment, particularly relate to a kind of network flow quantity shunting method and the network equipment.
Background technology
Along with further developing of mobile technology, the main body of current mobile communication business is just progressively shifted to Packet data service by speech business, such as, GPRS (GPRS, General Packet RadioService), communication systems such as Wideband Code Division Multiple Access (WCDMA) (WCDMA, Wideband Code Division Multiple Access) and CDMA2000 can loaded packet data service.Now be that example describes with GPRS.
Consult Fig. 1, in the GPRS communication system, Gateway GPRS Support Node (GGSN, Gateway GPRSSupport Node) is the new equipment of GPRS in order to realize the data business support is introduced.GGSN has following basic function:
1. as the accessing gateway equipment of data network, finish interface function with the external IP packet network.From the viewpoint of extranets, GGSN just looks like to be the router of all User IPs in the addressable GPRS network, need be with the external network exchanging routing information;
2. finish the GPRS session management together with GPRS Zhi Chijie (SGSN, Serving GPRS Support Node), finish mobile phone and set up process with the communication of external data network.
Consult Fig. 2, can adopt above-mentioned communication system to carry out Packet data service,, need carry out following flow process such as when the user surfs the Net by the GPRS mobile phone wireless:
One, APN (APN, Access Point Name) at first need be set on mobile phone, initiate activation process.APN goes up the domain name of using just as Internet, and which packet network decision GPRS user is linked into.
Two, SGSN parses to need to pass through which GGSN access by activating the APN information of carrying in the request message to name server (DNS, Domain Name Server);
Three, send activation request message notice GGSN and create packet data protocol (PDP, Packet DataProtocol) context activation, in the process of user's online, the different access network of APN selection that GGSN is provided with according to mobile phone.Described activation request message comprises IMSI International Mobile Subscriber Identity (IMSI, International Mobile Subscriber Identity), Mobile Subscriber International ISDN number, (MSISDN, Mobile Station International ISDN Number), public land moves cells such as (communication) net (PLMN, Public Land Mobile Network), access network type, SGSN IP address and APN.
For example certain operator releases two kinds of business: a kind of is WAP (wireless application protocol) (WAP, WirelessApplication Protocol), another kind is internet (Internet), corresponding two different packet networks and two different APN are respectively " wap " and " internet ".When the GPRS cellphone subscriber wants to surf the Internet browsing page, APN need be set on mobile phone be " internet ", if the GPRS cellphone subscriber wants to carry out the WAP business, APN then need be set on mobile phone be " wap ".
In addition, now the mobile subscriber carries out the Packet Service visit and generally is to use dynamic IP addressing.In existing technology, the method for salary distribution of IP address and addresses distributed pond are configured according to APN APN.To inserting the user of heterogeneous networks, each access network is different with the distribution address pool to the method for salary distribution of IP address.
Prior art can not be distinguished on GGSN the data traffic of same APN inside, all can be linked into same packet network.But in the reality operation, mobile operator may need the data traffic of same APN inside is segmented.Such as there being following multiple situation:
1) disposal ability of WAP GW (Gate Way) is far smaller than GGSN, need the corresponding GGSN of a plurality of WAP GW, but owing to have only an APN among the existing GGSN, and the professional general only corresponding APN of WAP, so in operation, the only corresponding WAP of GGSN;
2) there are two different communication services an operator inside, and the corresponding service gateway may be different (concerning GGSN, inserting different external networks exactly), but the APN of two communication services is the same;
3) operator has 2G and 3G network simultaneously, the corresponding corresponding business gateway of difference, but APN is consistent;
4) operator wants to allow the user insert different Service Gateways in different regions, but APN is consistent; Similarly demand may also have a lot.
If at top different demand, the operation commercial city is formulated for different APN, and the drawback of bringing is a lot, such as:
1) be unfavorable for operator's unified planning and propaganda, operator need customize propaganda in different regions, in the face of the APN of different user is different, and cost is very high;
2) APN of every increase, the configuration parameter that just needs in the update system a lot of equipment: comprise routing configuration information in domain name mapping configuration parameter, the Gateway GPRS Support Node or the like in the data of opening an account, name server of user in the attaching position register (HLR, Home Location Register).These work have strengthened the complexity and the cost of mobile operator network management undoubtedly;
3) GPRS user has changed region, network or communication service etc., just need switch APN on mobile phone.But the configuration parameter of APN is for common user, is not to be readily appreciated that and to accept; Also because there are a plurality of APN, increased the difficulty that the user selects simultaneously;
4) since the method for salary distribution and the addresses distributed pond of IP address be configured according to APN APN, when APN increases, need be just many more for user's IP address allocated and address pool, increase the difficulty that user side disposes.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of interior flow of same APN of realizing and is diverted to the network flow quantity shunting method of different external networks.
The technical problem to be solved in the present invention is also to provide the interior flow of a kind of same APN to be diverted to the network equipment of different external networks.
For solving above-mentioned first technical problem, the purpose of embodiment of the present invention is achieved through the following technical solutions: a kind of network flow quantity shunting method is provided, comprise step: after receiving the message that comprises unified APN, Gateway GPRS Support Node is resolved described message; The attribute or the numerical value of the cell that obtains according to parsing are selected the sub-APN of corresponding described attribute in the described Gateway GPRS Support Node or numerical value, are that context activation uses, and insert corresponding external network.
For solving above-mentioned second technical problem, the purpose of embodiment of the present invention is achieved through the following technical solutions: a kind of network equipment is provided, be used to realize the function of IAD, and manage GPRS session with serving GPRS support node, preserve predetermined foster son's APN of cell attribute in the corresponding wireless access message or numerical value, and comprise: resolution unit is used for parsing the cell in the described wireless access message after receiving the wireless access message that comprises APN; The network selecting unit is used for selecting the sub-APN of corresponding described cell attribute of the described network equipment or numerical value, is that context activation uses.
More than first technical scheme as can be seen, because embodiment of the present invention is used to different attribute or numerical value from serving GPRS support node message cell, select corresponding sub-APN in order to context activation and subsequent communications flow process, this is equivalent to realize the routing function of 1 * N in Gateway GPRS Support Node, promptly can adopt unified APN in serving GPRS support node one side, and adopt a plurality of sub-APNs in Gateway GPRS Support Node one side, described unified APN passes through cell different attribute or the numerical value and different sub-APN associations of message, therefore need not to change user terminal, the base station, HLR, the design of SGSN and DNS and parameter only get final product Gateway GPRS Support Node setting.Reduce the carrier network configuration complexity, cut operating costs and reduce the cellphone subscriber and go up the complexity that is provided with in the network process.
More than second technical scheme as can be seen, because embodiment of the present invention employing resolution unit parses the cell in the wireless access message, draw its attribute or numerical value, and the sub-APN of corresponding described cell attribute or numerical value is that context activation uses in the employing network selecting unit selection Gateway GPRS Support Node.Can adopt unified APN in serving GPRS support node one side, and adopt a plurality of sub-APNs in Gateway GPRS Support Node one side, described unified APN passes through cell different attribute or the numerical value and different sub-APN associations of message, therefore need not most of network equipment is changed, only Gateway GPRS Support Node setting is got final product.Reduce the carrier network configuration complexity, cut operating costs and reduce the cellphone subscriber and go up the complexity that is provided with in the network process.
Description of drawings
Fig. 1 is a prior art GPRS network structure chart;
Fig. 2 is the schematic diagram of a kind of network flow quantity shunting method of prior art;
Fig. 3 is the flow chart of network flow quantity shunting method embodiment of the present invention;
Fig. 4 is the theory diagram of gateway node execution mode of the present invention.
Embodiment
Embodiment of the present invention does not change the configuration to APN of Access Network and subscriber terminal side, on user terminal, base station, HLR, SGSN and DNS, use unified single APN, and on GGSN, preserve the corresponding attribute of request message cell or each predetermined foster son APN of numerical value of activating.That is to say and on GGSN, pre-set different sub-APN, each sub-APN correspondence is carried the particular cell in the activation request message of unified APN, behind the activation request message of receiving from SGSN that comprises APN, GGSN parses the cell in the described activation request message.According to the attribute or the numerical value of described cell, the sub-APN that selects corresponding described attribute or numerical value is that context activation uses, and in subsequent communications that the sub-APN of described APN and described selection is related.Now by specific embodiment the present invention is described in detail, but this embodiment is not useable for limiting range of application of the present invention, in other mobile communication system such as CDMA or other dissimilar communication system of WCDMA, also can use invention thought of the present invention at an easy rate.These are used network element or message name or difference are arranged, but still fall into protection scope of the present invention.
The present invention at first proposes a basic embodiment: a kind of network flow quantity shunting method comprises step:
After receiving the message that comprises APN, gateway node parses the cell in the described message;
According to the attribute or the numerical value of described cell, select the sub-APN of corresponding described attribute in the described gateway node or numerical value, be that context activation uses, and insert corresponding external network.
From as can be seen above, the invention described above basic embodiment is used to different attribute or the numerical value from SGSN message cell, select corresponding sub-APN in order to context activation and subsequent communications flow process, this is equivalent to realize the routing function of the corresponding a plurality of external networks of a GGSN in GGSN, promptly can adopt unified APN in SGSN one side, and adopt a plurality of sub-APN in GGSN one side, described unified APN passes through cell different attribute or the numerical value and different sub-APN associations of message, therefore need not to change user terminal, the base station, HLR, the design of SGSN and DNS and parameter only are provided with GGSN and get final product.Reduce the carrier network configuration complexity, cut operating costs and reduce the cellphone subscriber and go up the complexity that is provided with in the network process.
In other execution mode, above-mentioned gateway node can be GGSN.
The present invention also provides another basic embodiment: a kind of network equipment, be used to realize the function of session management and IAD, preserve predetermined foster son's APN of cell attribute in the corresponding wireless access message or numerical value, and comprise: resolution unit, be used for after receiving the wireless access message that comprises APN, parsing the cell in the described wireless access message; The network selecting unit is used for selecting the sub-APN of corresponding described cell attribute of the described network equipment or numerical value, is that context activation uses.
In the above-mentioned basic embodiment, because the employing resolution unit parses the cell in the wireless access message, drawing its attribute or numerical value, and adopt the network selecting unit to select the sub-APN of corresponding described cell attribute in this network equipment or numerical value, is that context activation uses.Can adopt unified APN in SGSN one side, and adopt a plurality of sub-APN in this network equipment one side, described unified APN passes through cell different attribute or the numerical value and different sub-APN associations of message, therefore need not most of network equipment is changed, only this network equipment setting is got final product.Reduce the carrier network configuration complexity, cut operating costs and reduce the cellphone subscriber and go up the complexity that is provided with in the network process.
In other execution mode, above-mentioned gateway node can be GGSN.
Below in conjunction with execution mode and accompanying drawing, describe the present invention.
Consulting Fig. 3, is network flow quantity shunting method embodiment of the present invention, at first need be on GGSN prewired be equipped with cell attribute in corresponding wireless access/activation request message or numerical value predetermined foster son APN, comprise step:
301, user terminal initiates to carry wireless access request/activation request of APN to SGSN;
The user selects an APN that will connect on terminal, such as " internet ", again such as being " wap " etc.; Promptly send wireless access request/activation request to SGSN after determining through the base station.Described activation request message comprises that IMSI International Mobile Subscriber Identity, Mobile Subscriber International ISDN number, public land move cells such as (communication) net, access network type, SGSN IP address and APN;
302, SGSN and HLR confirm the validity of APN;
303, SGSN obtains the GGSN address by DNS;
In the above-mentioned steps 301,302,303, the user is only signatory " unified APN ", also only configuration " unified APN " on SGSN in HLR;
304, SGSN sends the wireless access request/activation request message that comprises described APN to GGSN;
305, after receiving described wireless access request/activation request message, GGSN parses the cell in the described message, and promptly IMSI International Mobile Subscriber Identity, Mobile Subscriber International ISDN number, public land move cells such as (communication) net, access network type, SGSN IP address and APN;
306, judge the sub-APN whether corresponding described attribute or numerical value are arranged among the described GGSN, have then to enter step 307, otherwise the APN that uses the APN in the described message to use as context activation;
Before this, predefine has sub-APN and sub-APN matching principle among the GGSN, and described sub-APN matching principle is: the corresponding different sub-APN of the different attribute of cell or numerical value in wireless access request/activation request message.The attribute of described cell is meant the type of Access Network or the IP address of SGSN, and the numerical value of described cell is meant the number of IMSI, MSISDN or PLMN.
Following table is depicted as the matching principle that uses in the one embodiment of the invention, and in other embodiments, described matching principle can be flexible and changeable, and it makes up principle is to select corresponding sub-APN according to user's different situations or network demand.
This step is searched the sub-APN whether corresponding described cell attribute or numerical value are arranged from last table, has then to enter step 307, otherwise the APN that uses the APN in the described message to use as context activation.
307, according to the attribute or the numerical value of described cell, select the sub-APN of corresponding described attribute among the described GGSN or numerical value, be that context activation uses, and the sub-APN of described APN, wireless access/activation request message and described selection is related;
Such as the result who in step 305 wireless access request/activation request message is resolved is that number segment in the IMSI cell is between 0～1000, the sub-APN of this number section correspondence is the wap network title of certain operator, then this wap network name is referred to as context activation and uses.
308, the sub-APN according to described selection distributes the address, is connected with external network by described addresses distributed.Specifically be IP address, the address pool that the sub-APN for described selection disposes, be connected with external network with address pool and external interface by described IP address.
This step is that network has been ready to connect, and can communicate.
From as can be seen above, the invention described above execution mode parses in step 305 from SGSN message cell, in step 306, judge the sub-APN whether corresponding described cell attribute or numerical value are arranged among the GGSN, have then in step 307 according to cell different attribute or numerical value, select corresponding sub-APN in order to context activation and subsequent communications flow process, this is equivalent to realize the routing function of the corresponding a plurality of external networks of a GGSN in GGSN, promptly can adopt unified APN in SGSN one side, and adopt a plurality of sub-APN in GGSN one side, therefore need not to change user terminal, the base station, HLR, the design of SGSN and DNS and parameter only are provided with GGSN and get final product.Reduce the carrier network configuration complexity, cut operating costs and reduce the terminal use and go up the complexity that is provided with in the network process.
Can know that from above embodiment of the present invention can be only with the corresponding a plurality of WAPGW of a GGSN, the corresponding sub-APN of each WAP GW; Allow an operator inside that a plurality of different communication services are arranged, the corresponding sub-APN of each communication service; Allow an operator inside that a plurality of different networks are arranged, the corresponding sub-APN of each network; Allow the user to insert different Service Gateways, the corresponding sub-APN of each Service Gateway in different regions.
In a word, embodiment of the present invention can realize that the flow in the same APN is diverted to different external networks, and cost is low, and the user is very easy to use.
Consult Fig. 4, the present invention also provides a kind of packet network system and the network equipment, and the described network equipment is used to realize session management and to data business support function.In the present invention, this network equipment can be GGSN 400.Described packet network system comprises GGSN 400 and SGSN 500, and described GGSN 400 comprises memory cell 440, records the related information of the sub-APN of described APN, activation request message and described selection.Promptly preserve the corresponding APN in the request message and the predetermined foster son APN and the sub-APN matching principle of cell attribute or numerical value of activating, described sub-APN matching principle is: the different sub-APN of the different attribute of cell or numerical value correspondence in wireless access request/activations request message.The attribute of described cell is meant the type of Access Network or the IP address of SGSN, and the numerical value of described cell is meant the number of IMSI, MSISDN or PLMN.
Described GPRS 500 support nodes are used for after confirming APN validity, obtain the Gateway GPRS Support Node address and send activating request message to GGSN 400.Described GGSN 400 also comprises resolution unit 410, judging unit 430 and network selecting unit 420.
Described resolution unit 410 is used for after the wireless access message of receiving from SGSN that comprises APN, parses IMSI, the MSISDN, PLMN, access network type or the SGSN IP address cell that are called in the wireless access message that activates request message.Described judging unit is used for can not find under the sub-APN situation of cell attribute in the corresponding described activation request message of coupling or numerical value the APN that uses the APN in the described activation request message to use as context activation in the data that memory cell 440 is preserved; Under situation about finding, 420 actions of trigger network selected cell.It is the cell of the IP address of the type of Access Network or SGSN, number that numerical value is IMSI, MSISDN or PLMN and the predetermined foster son APN of preservation that described network selecting unit 420 is used for by match attribute, selecting the sub-APN of cell attribute in the corresponding described wireless access message or numerical value, is that context activation uses.
When running, GGSN 400 receives from user terminal and through wireless access request/activation request message of SGSN 500, whether employing resolution unit 410 parses the cell in wireless access request/activation request message, adopt then in 430 pairs of described message of judging unit to exist predefined sub-APN to judge.If judge and pass through, the sub-APN of cell attribute or numerical value uses the APN of the sub-APN of described selection as the context activation use in the corresponding described wireless access message of network selecting unit 420 selections; If can not find corresponding sub-APN, the APN that judging unit 430 uses the APN in the described wireless access message to use as context activation.
From as can be seen above, because employing resolution unit 410 parses the cell in the wireless access message, drawing its attribute or numerical value, and adopt network selecting unit 420 to select the sub-APN of corresponding described cell attribute among the GGSN 400 or numerical value, is that context activation uses.Can adopt unified APN in SGSN 500 1 sides, and adopt a plurality of sub-APN in GGSN 400 1 sides, described unified APN passes through cell different attribute or the numerical value and different sub-APN associations of message, therefore need not most of network equipment is changed, only GGSN 400 is provided with and gets final product.Reduce the carrier network configuration complexity, cut operating costs and reduce the cellphone subscriber and go up the complexity that is provided with in the network process.
More than a kind of network flow quantity shunting method provided by the present invention and the network equipment are described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. a network flow quantity shunting method is characterized in that, comprises step:
After receiving the activation request message that comprises APN, gateway node is resolved described message;
The attribute or the numerical value of the cell that obtains according to parsing are selected the sub-APN of corresponding described attribute or numerical value in described gateway node, be that context activation uses, and insert corresponding external network.
2. network flow quantity shunting method according to claim 1, it is characterized in that, gateway node is resolved described message, comprises step: parse at least one in the following cell from described message: IMSI International Mobile Subscriber Identity, Mobile Subscriber International ISDN number, Public Land Mobile Nerwork, access network type or serving GPRS support node IP address.
3. network flow quantity shunting method according to claim 1 and 2, it is characterized in that, comprise step: according to the number of IP address, IMSI International Mobile Subscriber Identity, Mobile Subscriber International ISDN number or the Public Land Mobile Nerwork of the type of resolving the Access Network obtain from described message, serving GPRS support node, selecting the predetermined foster son APN corresponding with it is the context activation use.
4. network flow quantity shunting method according to claim 1 and 2, it is characterized in that, further comprise step: after gateway node is resolved described message, judge the sub-APN whether corresponding described attribute or numerical value are arranged in the described gateway node, do not having under the sub-APN situation of corresponding described attribute or numerical value, using the Access Point Name in the described message to be referred to as the APN that context activation uses.
5. network flow quantity shunting method according to claim 1 and 2, it is characterized in that further comprising step: in selecting described gateway node after the sub-APN of corresponding described attribute or numerical value, sub-APN according to described selection distributes the address, by described addresses distributed and corresponding external network connection.
6. network flow quantity shunting method according to claim 1 and 2 is characterized in that, before receiving the message that comprises APN, comprising:
The activation request that the user carries APN to the serving GPRS support node initiation;
After the validity of serving GPRS support node and HLR affirmation APN, obtain the gateway node address by DNS.
7. network flow quantity shunting method according to claim 1 and 2, it is characterized in that, further comprise step: behind the sub-APN of corresponding described attribute or numerical value, that the sub-APN of described APN, activation request message and described selection is related in selecting described gateway support node.
8. network equipment, the function that is used to carry out session management and realizes IAD is characterized in that, preserves predetermined foster son's APN of cell attribute in the corresponding wireless access message or numerical value, and comprises:
Resolution unit is used for parsing the cell in the described wireless access message after receiving the wireless access message that comprises APN;
The network selecting unit is used for selecting the sub-APN of corresponding described cell attribute of the described network equipment or numerical value, is that context activation uses.
9. the network equipment according to claim 8 is characterized in that, further comprises memory cell, the related information that be used to write down described APN, activates the sub-APN of request message and described selection.
10. according to Claim 8 or the 9 described network equipments, it is characterized in that, further comprise judging unit, be used for judging whether described gateway node has the sub-APN of corresponding described attribute or numerical value, do not having under the sub-APN situation of corresponding described attribute or numerical value, using the Access Point Name in the described message to be referred to as the APN that context activation uses.
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| CN102480772A (en) * | 2010-11-24 | 2012-05-30 | 中兴通讯股份有限公司 | Gateway selecting method and gateway selector |
| CN102158905B (en) * | 2011-02-17 | 2013-09-04 | 大唐移动通信设备有限公司 | Method and device for establishing selective IP flow shunt connection under home base station |
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