CN101635708B - Establishment method and device of packet data network (PDN) connection - Google Patents
Establishment method and device of packet data network (PDN) connection Download PDFInfo
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- CN101635708B CN101635708B CN 200810144208 CN200810144208A CN101635708B CN 101635708 B CN101635708 B CN 101635708B CN 200810144208 CN200810144208 CN 200810144208 CN 200810144208 A CN200810144208 A CN 200810144208A CN 101635708 B CN101635708 B CN 101635708B
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Abstract
The embodiment of the invention discloses an establishment method and a device of packet data network (PDN) connection, comprising the following steps: obtaining IP addresses to which at least two PDN connections correspond; distributing corresponding PDN identifications for the at least two PDN connections; when the IP addresses to which the at least two PDN connections correspond are identical,triggering the at least two PDN connections which correspond to the identical IP addresses by using the corresponding PDN identifications, and establishing the PDN connection. By the application of the invention, only when the addresses distributed to a mobile terminal by PDN GW are identical, and the PDN identifications are triggered to be used to establish the corresponding PDN connections; therefore, the network resources wastes caused by the use of PDN identifications in all conditions is avoided; the usage efficiency of the resources is improved, and especially the transmission efficiency of empty port is improved.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of packet data network PDN and connect method for building up and device.
Background technology
2G (2nd Generation, second generation digital communication) and 3G (3rd Generation, third generation digital communication) there is multiple standard in wireless cellular network, GSM (Global System for MobileCommunications for example, global system for mobile communications), CDMA (Code Division Multiple Access, code division multiple access) 2000 1x, UMTS (Universal Mobile Telecommunications System, universal mobile telecommunications system) and CDMA2000 EV-DO (Evolution Data-Optimized, Evolution-Data Optimized), development along with technology, above-mentioned network also carries out evolution constantly, to provide higher speed, abundanter business.Operator was in order to keep forward compatibility in the past, when carrying out network upgrade, all can consider to be upgraded to the evolution version of existing network, for example from GSM (Global System for MobileCommunication, global system for mobile communications) is upgraded to UMTS, perhaps be upgraded to UMB (Ultra Mobile Band, Ultra-Mobile Broadband) from CDMA2000 EV-DO.But along with the restriction of continuous aggravation, the IPR (Intellectual Property Right, intellectual property) of competition and the user requirements at the higher level to network quality, operator begins to consider that the evolution path to different with existing network carries out network upgrade.Be typically the Verizon of U.S. operator, this operator gathers around at present has plenty of CDMA2000 EV-DO network, be also referred to as HRPD (High Rate Packet Data, High Rate Packet Data) network, in the conventional mode, this network can be upgraded becomes its evolution version UMB, but for the consideration of various factors, Verizon has prepared LTE (Long Term Evolution, Long Term Evolution) as the following network technology that adopts.In addition, this mode can make operator more insert means for the user provides type, if adopt unified core net, also can be operator and cuts operating costs.
The intercommunication of 3GPP evolvement network and non-3GPP network is the much-talked-about topic that current standardization body is discussed.Wherein, of greatest concern is the intercommunication of LTE and HRPD network, and this problem discussion is maximum, makes progress the fastest.In present stage, HRPD network and traditional HRPD network have had bigger difference, therefore are called as evolution HRPD.
In the prior art, evolution HRPD network is that different QoS (Quality of Service, service quality) is set up different carryings.Can there be a plurality of PDN GW in the HRPD network, terminal has been set up PDN with a plurality of PDN GW and has been connected, according to different qos requirements, different application is carried on different link flow LinkFlow (RLP just) and the A10, but in order to reduce the quantity that carrying is set up, if terminal is identical with application stream qos requirement between different PDN GW, can be carried on identical the link Flow and A10, for example for transmitting type (Best Effort as possible, hereinafter to be referred as: though data BE) may mail to different PDN GW, but still can use same LinkFlow and A10 to transmit.
For realizing above-mentioned QoS Model Design, existing technology is: for non-VoIP (Voice overInternet Protocol, the Internet protocol sound signal) packet or for the packet that transmits type as possible, before each forward direction and reverse packet, increase an extension header, be used to refer to this packet and which PDN GW send or to send to which PDN GW from, just increased a PDNidentifier or PDN identifier.PDN identifier is distributed by HSGW when setting up the PDN connection.After HSGW receives the reverse data bag, according to PDN identifier or PDN identifier packet is transmitted to corresponding PDN GW, equally, after terminal is received forward data, also according to PDNidentifier or PDNidentifier it is sent to correct application processing.
In realizing process of the present invention, the inventor finds that there is following problem at least in prior art:
All increased the PDN sign to the user face data bag of non-VoIP or to the packet that transmits type as possible, this is designated as 4 bytes at present, because the user face data amount is very big, therefore still bigger to the influence of the whole traffic, particularly increased the load of eating dishes without rice or wine.
In addition, in fact just just really need in some cases for the PDN sign, because under the situation of many PDNGW, different PDN GW can give the different IP address of terminal distribution, HSGW or terminal can be utilized the affiliated PDN GW of IP address area divided data bag, only when PDN GW gives the identical IP address of terminal distribution, use the PDN sign just more to be conducive to distinguish the flow direction of packet, and distribute the possibility of identical address very low.
Therefore, existing technology is all used the PDN sign at any time, thereby, wasted the resource that network transmits.
Summary of the invention
The problem that the embodiment of the invention will solve provides a kind of PDN and connects method for building up, only identical situation triggering user face data bag occurs for the portable terminal addresses distributed at PDNGW and uses the PDN sign, connect to set up corresponding PDN.Thereby, avoided all using the PDN sign waste of network resources that causes at all situations, improved resource utilization.
For achieving the above object, the embodiment of the invention proposes a kind of packet data network PDN on the one hand and connects method for building up, may further comprise the steps:
Obtain at least two PDN and connect corresponding IP address, distribute corresponding PDN sign for described at least two PDN connect;
When the IP address that exists at least two described PDN to connect correspondence is identical, trigger at least two identical PDN of described corresponding IP address and connect the corresponding described PDN sign of use, set up described PDN and connect.
On the other hand, the embodiment of the invention has also proposed a kind of PDN and has connected method for building up, may further comprise the steps:
Obtain at least two PDN and connect corresponding IP address;
When the IP address that exists at least two described PDN to connect correspondence is identical, for connecting, at least two identical PDN of described corresponding IP address distribute corresponding PDN sign, and trigger at least two identical PDN connections of described corresponding IP address and use corresponding described PDN sign, set up described PDN and connect.
On the other hand, the embodiment of the invention has also proposed a kind of network equipment, comprises acquisition module, distribution module, and trigger module, is specially:
Described acquisition module is used for obtaining at least two PDN and connects corresponding IP address;
Described distribution module for the IP address that obtains according to described acquisition module, when the IP address that exists at least two described PDN to connect correspondence is identical, is that described at least two PDN connect the corresponding PDN sign of distribution maybe;
Described trigger module is used at least when the IP address that exists two described PDN to connect correspondence is identical, triggers at least two identical PDN connections of described corresponding IP address and uses corresponding described PDN sign, sets up described PDN and connects.
On the other hand, the embodiment of the invention has also proposed a kind of PDN and has connected method for building up, may further comprise the steps:
Send the request of at least two PDN establishment of connections;
Receive described at least two PDN and connect corresponding IP address and PDN sign, but do not enable described PDN sign;
When the IP address that exists at least two described PDN to connect correspondence is identical, send at least two identical PDN of the described corresponding IP of triggering address and connect the message of using corresponding described PDN to identify, set up described PDN and connect.
On the other hand, the embodiment of the invention has also proposed a kind of PDN and has connected method for building up, may further comprise the steps:
Send the request of at least two PDN establishment of connections;
Receive described at least two PDN and connect corresponding IP address;
When the IP address that exists at least two described PDN to connect correspondence is identical, send and trigger the message that at least two identical PDN of described corresponding IP address connect the corresponding described PDN sign of use, and be received as the PDN sign that at least two identical PDN of described IP address connect distribution, use described PDN sign to set up described PDN and connect.
On the other hand, the embodiment of the invention has also proposed a kind of terminal, comprising:
Sending module is used for sending the request of at least two PDN establishment of connections;
Receiver module be used for to receive IP address and/or PDN sign that the PDN of at least two PDN establishment of connection request correspondences that described sending module sends connects;
Trigger module is used at least when the IP address that exists two described PDN to connect correspondence is identical, and transmission triggers at least two identical PDN of described corresponding IP address and connects the message of using corresponding described PDN to identify, sets up described PDN connection.
The technical scheme of the embodiment of the invention has the following advantages, because adopted a kind of PDN to connect method for building up, only identical situation occurs for the portable terminal addresses distributed at PDN GW and trigger user face data bag use PDN sign, connect to set up corresponding PDN, thereby, reached and avoided all using the PDN sign waste of network resources that causes at all situations, improved the effect of resource utilization.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic flow sheet that a kind of packet data network PDN connects method for building up in the embodiment of the invention one;
Fig. 2 is the specific implementation flow chart of the quality of service method of evolution HRPD network in the embodiment of the invention two;
Fig. 3 is the specific implementation flow chart of the quality of service method of evolution HRPD network in the embodiment of the invention three;
Fig. 4 is the schematic flow sheet that a kind of packet data network PDN connects method for building up in the embodiment of the invention four;
Fig. 5 is the specific implementation flow chart of the quality of service method of evolution HRPD network in the embodiment of the invention five;
Fig. 6 is the specific implementation flow chart of the quality of service method of evolution HRPD network in the embodiment of the invention six;
Fig. 7 is that PDN connects the schematic flow sheet that discharges resource in the embodiment of the invention seven;
Fig. 8 is the structural representation of the network equipment in the embodiment of the invention eight;
Fig. 9 realizes the judgement of IP address and triggers the schematic flow sheet that the PDN that enables the PDN sign connects method for building up by terminal for a kind of in the embodiment of the invention nine;
Figure 10 realizes the judgement of IP address and triggers the schematic flow sheet that the PDN that enables the PDN sign connects method for building up by terminal for a kind of in the embodiment of the invention ten;
Figure 11 realizes the judgement of IP address and triggers the schematic flow sheet that the PDN that enables the PDN sign connects method for building up by terminal for a kind of in the embodiment of the invention 11;
Figure 12 is the structural representation of a kind of terminal in the embodiment of the invention 12.
Embodiment
The embodiment of the invention provides a kind of PDN to connect method for building up, only identical situation triggering user face data bag occurs for the portable terminal addresses distributed at PDN GW and uses the PDN sign, connect to set up corresponding PDN.Thereby, avoided all using the PDN sign waste of network resources that causes at all situations, improved resource utilization, particularly improved the efficiency of transmission of eating dishes without rice or wine.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The main contents of the embodiment of the invention are, HSGW records a plurality of PDN GW and gives the portable terminal IP address allocated, if the IP address is all inequality, then do not use the PDN sign, and utilize the IP address to distinguish PDN GW, if the situation of repetition is arranged in the IP address, then HSGW sends the signaling triggering mobile terminals and uses the PDN sign.Follow-up if address is no longer identical situation again, and then HSGW can also trigger and not re-use the PDN sign.
Be divided into two classes specifically:
1. when portable terminal and PDN GW set up PDN and be connected, HSGW distributed PDN to identify to terminal, but does not use immediately.When HSGW or portable terminal judge that PDN GW has repetition for the portable terminal IP address allocated, just trigger and use PDN to identify.
2. portable terminal is set up PDN with PDN GW and is connected, and HSGW does not distribute the PDN sign, just distribute when needing to use the PDN sign when HSGW judges.
Whether carried the PDN sign in order to allow portable terminal and HSGW distinguish packet, need do certain change, mode comprises:
1. before packet, increase sign.
2. in the bearing protocol of packet, increase sign.Just in RLP, GRE or VSNP (Vendor Specific Network Protocol, the peculiar procotol of equipment vendor), increase indication.
The broadcast packet that send for portable terminal or HSGW sends, DHCP for example, which PDN GW is message such as route announcement Route Advertisement belong in order to make reception can distinguish this message, may need these message are expanded, mode comprises two kinds:
1. if HSGW will distribute the PDN sign, can directly carry.
2. carry APN, Access Point Name just, because Access Point Name and PDN GW bind, certain APN belongs to fixing PDN GW.
Based on above-mentioned variation, the corresponding above-mentioned PDN that distributes earlier identifies, under the situation of finding identical ip addresses, just trigger the situation that the PDN sign is used, the present invention proposes following examples, as shown in Figure 1, be the embodiment of the invention one, a kind of packet data network PDN connects the schematic flow sheet of method for building up, may further comprise the steps:
Step S101, the IP address that obtains a plurality of PDN connection correspondences.
Concrete obtaining step is as follows:
A plurality of PDN establishment of connection request that receiving terminal is initiated, and transmit foundation respectively to a plurality of PDN Gateway of a plurality of PDN establishment of connection request correspondences and ask.Wherein, in the request of a plurality of PDN establishment of connection, also comprise corresponding Access Point Name.
Receive the corresponding IP address of a plurality of PDN connections that a plurality of PDN Gateway return.
Step S102, be that a plurality of PDN connect and distribute corresponding PDN sign, and judge whether a plurality of PDN connect corresponding IP address identical;
When the IP address that has at least two PDN connection correspondences is identical, change step S103 over to;
When all PDN connect corresponding IP address when all inequality, change step S104 over to;
Need further be pointed out that, in this step, comprise that also sending PDN to terminal connects corresponding IP address and/or PDN sign, wherein, the IP address can be directly to feed back to terminal, also can be by follow-up be that one or more PDN connect DHCP (Dynamic HostConfiguration Protocol, the dynamic host allocation protocol) process of initiating and obtain corresponding IP address by terminal, whether the PDN sign sends to terminal then is divided into following two kinds of situations, is specially:
When the IP address that has at least two PDN connection correspondences was identical, the PDN that is sent as the correspondence of a plurality of PDN connection distribution identified to terminal; Or,
Judge a plurality of PDN connect corresponding IP address whether identical before, be sent as the PDN that a plurality of PDN connect the correspondence of distributing and identify to terminal, connect but do not use the PDN sign to set up a plurality of PDN.
Step S103, at least two identical PDN of the corresponding IP of triggering address connect the corresponding PDN sign of use, set up PDN and connect.
Further, after setting up PDN and connect by PDN sign, also exist in this connection and finish business, this connects to need cancellation, discharges the situation of resource, comprises following connection dispose procedure:
Receive the release request of one or more PDN connections of the terminal initiation of having set up one or more PDN connections;
Transmission comprises connection release message to the PDN Gateway of the release request correspondence of one or more PDN connections;
Receive the release response message that PDN Gateway sends.
Step S104, use IP address are set up PDN and are connected.
In the case; each establishment of connection process and data flow transmission course do not re-use PDN and identify, and each connects but rely on the IP address designation, wherein; also comprise the step of the corresponding relation of preserving PDN connection and IP address, this belongs to protection scope of the present invention equally.
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail:
Corresponding the above embodiments one, judge whether identical step and a plurality of PDN connects the precedence relationship that does not have certainty between the step of obtaining IP address and/or PDN sign in the IP address, so, at this difference, the present invention further specifies in conjunction with concrete Signalling exchange by following embodiment.
As shown in Figure 2, for the PDN of evolution HRPD network in the embodiment of the invention two connects the specific implementation flow chart of method for building up, HSGW distributes the PDN sign when PDN connects setting up, and when finding that there is repetition the address, triggers and uses the PDN sign, may further comprise the steps:
Step S201, UE send the PDN connection to HSGW and set up request message.
UE has been connected to evolution HRPD network, and UE sends the PDN connection to HSGW and sets up request message, has comprised APN1 (Access Point Name, Access Point Name) in the message.
Step S202, HSGW send the proxy-mobile IP binding update messages to the PDN GW1 of APN1 correspondence.
After HSGW received the request of UE, to the PDN GW1 transmission proxy-mobile IP binding update messages of APN1 correspondence, request connected with this PDN GW, namely sets up the GRE bearing tunnel.
Step S203, PDN GW1 return proxy-mobile IP binding acknowledgement message to HSGW.
PDN GW1 has received the request that connects, and therefore returns proxy-mobile IP binding acknowledgement message to HSGW, has carried in this acknowledge message to be the UE IP address allocated.
Step S204, HSGW send PDN connection foundation to UE and accept message.
This PDN sign (PDN identifier1) and PDN GW1 that has accepted to carry in the message HSGW distribution is the UE IP address allocated.
Step S205, UE communicate by HSGW and PDN GW1, but do not increase PDN identifier1 before packet, namely use normal IP bag in the above-mentioned communication process.
Step S206, UE initiate new business, and the PDN that this service needed please be looked for novelty connects, so UE sends PDN to HSGW and connect and set up request message, have comprised APN2 in the message.
After step S207, HSGW received request, to the PDN GW2 transmission proxy-mobile IP binding update messages of APN2 correspondence, request connected with this PDN GW, namely sets up gre tunneling.
Step S208, PDN GW2 have received the request that connects, so loopback proxy-mobile IP binding acknowledgement message, have carried simultaneously to be the UE IP address allocated.
Step S209, HSGW judge that PDN GW2 IP address allocated is identical with step S203 IP address allocated.
Step S210, HSGW send PDN connection foundation to UE and accept message, have carried the PDN sign (PDN identifier2) that HSGW distributes in the message, and owing to the situation of IP address repetition occurs, so indicate UE to bring into use the PDN sign.
Step S211, UE are new service request IP address, therefore send DHCP Discover message to HSGW, and the front of this dhcp message has increased PDN identifier2, and expression is to the PDNGW2 request address.
After step S212, HSGW receive DHCP Discover message, as DHCP proxy, message is re-send to PDN GW2, can carry the IP address that obtains among the step S208 in the message.
Step S213, PDN GW2 confirm DHCP Discover message, and loopback DHCP ACK message.
Step S214, HSGW send to UE with DHCP ACK, have increased PDNidentifier2 before the message, have comprised IP address allocated simultaneously.
All increase PDN identifier1 before the data packets transmitted between step S215, UE and PDN GW1.
All increased PDNidentifier2 before the data packets transmitted between step S216, UE and PDN GW2.
As shown in Figure 3, for the PDN of evolution HRPD network in the embodiment of the invention three connects the specific implementation flow chart of method for building up, HSGW distributes the PDN sign when PDN connects setting up, and when finding that there is repetition the address, triggers and uses the PDN sign.
It is pointed out that broadcast packet mentioned in the present embodiment, dhcp message for example, portability PDN sign makes HSGW to distinguish
Concrete, this method may further comprise the steps:
Step S301, UE have been connected to evolution HRPD network, and UE sends the PDN connection to HSGW and sets up request message, has comprised APN1 (Access Point Name Access Point Name) in the message.
After step S302, HSGW received the request of UE, to the PDN GW1 transmission proxy-mobile IP binding update messages of APN1 correspondence, request connected with this PDN GW, namely sets up the GRE bearing tunnel.
Step S303, PDN GW1 have received the request that connects, so loopback proxy-mobile IP binding acknowledgement message, have carried simultaneously to be the UE IP address allocated.
Step S304, HSGW send PDN connection foundation to UE and accept message, and the PDN sign (PDN identifier1) and the PDN GW1 that have carried the HSGW distribution in the message are the UE IP address allocated.
Step S305, UE communicate by HSGW and PDN GW1, but do not increase PDN identifier1 before packet, and namely above-mentioned communication process does not use the PDN sign, and is to use normal IP bag.
Step S306, UE initiate new business, and the PDN that this service needed please be looked for novelty connects, so UE sends PDN to HSGW and connect and set up request message, have comprised APN2 in the message.
After step S307, HSGW received request, to the PDN GW2 transmission proxy-mobile IP binding update messages of APN2 correspondence, request connected with this PDN GW, namely sets up gre tunneling.
Step S308, PDN GW2 have received the request that connects, so loopback proxy-mobile IP binding acknowledgement message, have carried simultaneously to be the UE IP address allocated.
Step S309, HSGW send PDN connection foundation to UE and accept message, have carried the PDN sign (PDN identifier2) that HSGW distributes in the message.
Therefore step S310, UE are new service request IP address, send DHCP Discover message to HSGW, for represent this Address requests at be PDN GW2, carried PDN identifier2 in the dhcp message.
After step S311, HSGW receive DHCP Discover message, as DHCP proxy, message is re-send to PDN GW2, can carry the IP address that obtains among the step S308 in the message.
Step S312, PDN GW2 confirm DHCP Discover message, and loopback DHCP ACK message.
Step S313, HSGW send to UE with DHCP ACK, have increased PDNidentifier2 before the message, have comprised IP address allocated simultaneously.
Step S314, HSGW judge that UE has two IP addresses, and address value is identical.
Step S315, HSGW send message to UE, the PDN sign of distributing before indication UE brings into use.
Step S316, UE loopback acknowledge message.
All increase PDN identifier1. before the data packets transmitted between step S317, UE and PDN GW1
All increased PDNidentifier2 before the data packets transmitted between step S318, UE and PDN GW2.
Need further be pointed out that, the above embodiments two and embodiment three all are to be that the example flow process of carrying out is described with two PDNGW, but, this only is the preferred embodiments of the present invention, if there is three or more PDN GW, the flow process of PDN GW2 is basic identical in corresponding flow process and above-described embodiment, describe in detail no longer separately, and, judge whether to exist in the step of identical IP address, as long as there is the identical situation in two or more IP address, just trigger the use of PDN sign, and in the identical PDN in corresponding IP address connects, use the PDN sign to connect identification.Such variation does not influence protection scope of the present invention.
The technical scheme of the embodiment of the invention has the following advantages, trigger user face data bag use PDN sign because only identical situation occurs for the portable terminal addresses distributed at PDN GW, therefore avoided all using the PDN sign waste of network resources that causes at all situations, improved resource utilization.
Further, based on the aforesaid variation of the present invention, the situation of PDN sign use is distributed and triggered to correspondence under the situation of finding identical ip addresses, and in the evolution HRPD network of supporting many PDN GW, the present invention proposes following examples:
As shown in Figure 4, be the embodiment of the invention four, a kind of packet data network PDN connects the schematic flow sheet of method for building up, may further comprise the steps:
Step S401, the IP address that obtains a plurality of PDN connection correspondences.
Concrete obtaining step is as follows:
A plurality of PDN establishment of connection request that receiving terminal is initiated, and transmit foundation respectively to a plurality of PDN Gateway of a plurality of PDN establishment of connection request correspondences and ask.Wherein, in the request of a plurality of PDN establishment of connection, also comprise corresponding Access Point Name.
Receive the corresponding IP address of a plurality of PDN connections that a plurality of PDN Gateway return.
Step S402, judge whether a plurality of PDN connect corresponding IP address identical;
When the IP address that has at least two PDN connection correspondences is identical, change step S403 over to;
When all PDN connect corresponding IP address when all inequality, change step S404 over to;
Need further be pointed out that, in this step, comprise that also sending PDN to terminal connects corresponding IP address, wherein, not have inevitable precedence relationship between the forwarding step of IP address and the determining step, such variation does not influence protection scope of the present invention
Step S403, be that at least two identical PDN of corresponding IP address connect and distribute corresponding PDN sign, trigger at least two identical PDN of corresponding IP address and connect and use corresponding PDN sign, set up PDN and connect.
In this step, also comprising the process that the PDN sign of distributing is sent to terminal, can be to connect according to the corresponding PDN of aforesaid APN identification.
Further, after setting up PDN and connect by PDN sign, also exist in this connection and finish business, this connects to need cancellation, discharges the situation of resource, comprises following connection dispose procedure:
Receive the release request of one or more PDN connections of the terminal initiation of having set up one or more PDN connections;
Send connection release message to the PDN Gateway of the release request correspondence of one or more PDN connections;
Receive the release response message that PDN Gateway sends.
Step S404, use IP address are set up PDN and are connected.
In the case; each establishment of connection process and data flow transmission course do not re-use PDN and identify, and each connects but rely on the IP address designation, wherein; also comprise the step of the corresponding relation of preserving PDN connection and IP address, this belongs to protection scope of the present invention equally.
Corresponding the above embodiments four, judge whether identical step and a plurality of PDN connects the precedence relationship that does not have certainty between the step of obtaining the IP address in the IP address, so, at this difference, the present invention further specifies in conjunction with concrete Signalling exchange by two following embodiment.
As shown in Figure 5, be the specific implementation flow chart of the quality of service method of evolution HRPD network in the embodiment of the invention five, when HSGW finds that there is repetition the address, distribute and trigger use PDN to identify, may further comprise the steps:
Step S501, UE have been connected to evolution HRPD network, and UE sends the PDN connection to HSGW and sets up request message, has comprised APN1 (Access Point Name Access Point Name) in the message.
After step S502, HSGW received the request of UE, to the PDN GW1 transmission proxy-mobile IP binding update messages of APN1 correspondence, request connected with this PDN GW, namely sets up the GRE bearing tunnel.
Step S503, PDN GW1 have received the request that connects, so loopback proxy-mobile IP binding acknowledgement message, have carried simultaneously to be the UE IP address allocated.
Step S504, HSGW send PDN connection foundation to UE and accept message, and having carried PDN GW1 in the message is the UE IP address allocated.
Step S505, UE communicate by HSGW and PDN GW1.
Step S506, UE initiate new business, and the PDN that this service needed please be looked for novelty connects, so UE sends PDN to HSGW and connect and set up request message, have comprised APN2 in the message.
After step S507, HSGW received request, to the PDN GW2 transmission proxy-mobile IP binding update messages of APN2 correspondence, request connected with this PDN GW, namely sets up gre tunneling.
Step S508, PDN GW2 have received the request that connects, so loopback proxy-mobile IP binding acknowledgement message, have carried simultaneously to be the UE IP address allocated.
Step S509, HSGW judge that PDN GW2 IP address allocated is identical with step S503 IP address allocated.
Step S510, HSGW send PDN connection foundation to UE and accept message, owing to the situation that repeat the IP address occurs, have carried two PDNidentifier for different PDN GW distribution in the message, indicate UE to bring into use the PDN sign.
Step S511, UE are new service request IP address, therefore send DHCP Discover message to HSGW, and the front of this dhcp message has increased PDN identifier2, and expression is to the PDNGW2 request address.
After step S512, HSGW receive DHCP Discover message, as DHCP proxy, message is re-send to PDN GW2, can carry the IP address that obtains among the step S508 in the message.
Step S513, PDN GW2 confirm DHCP Discover message, and loopback DHCP ACK message.
Step S514, HSGW send to UE with DHCP ACK, have comprised IP address allocated in the message.
All increase PDN identifier1 before the data packets transmitted between step S515, UE and PDN GW1.
All increased PDNidentifier2 before the data packets transmitted between step S516, UE and PDN GW2.
As shown in Figure 6, the specific implementation flow chart for the PDN of evolution HRPD network in the embodiment of the invention six connects method for building up, distributes and triggering use PDN sign when finding that there is repetition the address at HSGW.
It is pointed out that broadcast packet mentioned in the present embodiment, dhcp message for example, portability APN makes HSGW to distinguish
Concrete, this method may further comprise the steps:
Step S601, UE have been connected to evolution HRPD network, and UE sends the PDN connection to HSGW and sets up request message, has comprised APN1 (Access Point Name Access Point Name) in the message.
After step S602, HSGW received the request of UE, to the PDN GW1 transmission proxy-mobile IP binding update messages of APN1 correspondence, request connected with this PDN GW, namely sets up the GRE bearing tunnel.
Step S603, PDN GW1 have received the request that connects, so loopback proxy-mobile IP binding acknowledgement message, have carried simultaneously to be the UE IP address allocated.
Step S604, HSGW send PDN connection foundation to UE and accept message, and having carried PDN GW1 in the message is the UE IP address allocated.
Step S605, UE communicate by HSGW and PDN GW1, use normal IP bag.
Step S606, UE initiate new business, and the PDN that this service needed please be looked for novelty connects, so UE sends PDN to HSGW and connect and set up request message, have comprised APN2 in the message.
After step S607, HSGW received request, to the PDN GW2 transmission proxy-mobile IP binding update messages of APN2 correspondence, request connected with this PDN GW, namely sets up gre tunneling.
Step S608, PDN GW2 have received the request that connects, so loopback proxy-mobile IP binding acknowledgement message, have carried simultaneously to be the UE IP address allocated.
Step S609, HSGW send PDN connection foundation to UE and accept message.
Therefore step S610, UE are new service request IP address, send DHCP Discover message to HSGW, for represent this Address requests at be PDN GW2, carried APN2 in the dhcp message.
After step S611, HSGW receive DHCP Discover message, as DHCP proxy, message is re-send to PDN GW2, can carry the IP address that obtains among the step S608 in the message.
Step S612, PDN GW2 confirm DHCP Discover message, and loopback DHCP ACK message.
Step S613, HSGW send to UE with DHCP ACK.
Step S614, HSGW judge that UE has two IP addresses, and address value is identical.
Step S615, HSGW send message to UE, and indication UE brings into use the PDN sign, and have carried and be different APN, just the PDN GW PDN sign of distributing.
Step S616, UE loopback acknowledge message.
All increase PDN identifier1 before the data packets transmitted between step S617, UE and PDN GW1.
All increased PDNidentifier2 before the data packets transmitted between step S618, UE and PDN GW2.
Need further be pointed out that, the above embodiments five and embodiment six all are to be that the example flow process of carrying out is described with two PDNGW, but, this only is the preferred embodiments of the present invention, if there is three or more PDN GW, the flow process of PDN GW2 is basic identical in corresponding flow process and above-described embodiment, describe in detail no longer separately, and, judge whether to exist in the step of identical IP address, as long as there is the identical situation in two or more IP address, just trigger the use of PDN sign, and in the identical PDN in corresponding IP address connects, use the PDN sign to connect identification.Such variation does not influence protection scope of the present invention.
The technical scheme of the embodiment of the invention has the following advantages, because in the evolution HRPD network of supporting many PDN GW, only identical situation occurs for the portable terminal addresses distributed at PDN GW and trigger user face data bag use PDN sign, therefore avoided all using the PDN sign waste of network resources that causes at all situations, improved resource utilization.
Further, six above-mentioned embodiment are PDN establishment of connection flow process, after connecting foundation, after the business that also exists PDN to connect is finished, discharge the situation of this PDN connection resource.
Below, further by embodiment seven the release flow process that PDN connect is described.
As shown in Figure 7, for PDN in the embodiment of the invention seven connects the schematic flow sheet that discharges resource, the HSGW indication does not re-use the PDN sign, may further comprise the steps:
Step S701, UE have set up PDN with PDN GW1 with PDN GW2 and have been connected, because the situation that exists the IP address to repeat has all increased PDN identifier1 before the data packets transmitted between UE and PDN GW1.
All increased PDNidentifier2 before the data packets transmitted between step S702, UE and PDN GW2.
Application between step S703, UE and PDN GW2 finishes, so UE transmission signaling request HSGW release is connected with the PDN of PDN GW2.
Step S704, HSGW send the proxy-mobile IP binding update messages, and the lifetime is made as 0 in this message, and expression HSGW wishes to discharge the gre tunneling of setting up with PDN GW2.
After step S705, PDN GW2 receive the release request of HSGW, discharge respective resources, and loopback proxy-mobile IP binding acknowledgement message.
After step S706, HSGW receive message, confirm with PDN GW2 between be connected and discharge, therefore send PDN to UE and connect to discharge and accept message, indication UE can not re-use PDN and identify.
Step S707, UE will not re-use the PDN sign follow-up by communicating by letter of HSGW and PDN GW1.
The technical scheme of the embodiment of the invention has the following advantages, because in the evolution HRPD network of supporting many PDN GW, only identical situation occurs for the portable terminal addresses distributed at PDN GW and trigger user face data bag use PDN sign, therefore avoided all using the PDN sign waste of network resources that causes at all situations, improved resource utilization.
Corresponding aforesaid seven embodiment, the embodiment of the invention has further proposed a kind of network equipment, and as shown in Figure 8, the structural representation for the network equipment in the embodiment of the invention eight comprises:
Further, the above-mentioned network equipment also comprises one or more with in the lower module:
Sending module 85 is used for sending PDN to terminal and connects corresponding IP address and/or PDN sign,
Above-mentioned module can be distributed in a device, also can be distributed in a plurality of devices.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
The technical scheme of the embodiment of the invention has the following advantages, because in the evolution HRPD network of supporting many PDN GW, only identical situation occurs for the portable terminal addresses distributed at PDN GW and trigger user face data bag use PDN sign, therefore avoided all using the PDN sign waste of network resources that causes at all situations, improved resource utilization.
In above embodiment; IP address whether identical deterministic process and the triggering process of enabling the PDN sign is the network equipment (for example aforesaid HSGW) and finishes; but this process can also realize that this belongs to protection scope of the present invention equally by terminal.
As shown in Figure 9, realize the schematic flow sheet that the IP address is judged and triggered the PDN connection method for building up of enabling the PDN sign for a kind of in the embodiment of the invention nine by terminal, UE triggers and enables the PDN sign, may further comprise the steps:
Step S901, terminal send the request of a plurality of PDN establishment of connection.
Wherein, in the request of a plurality of PDN establishment of connection, comprise that specifically each PDN connects corresponding Access Point Name.
Step S902, terminal receive a plurality of PDN and connect corresponding IP address and/or PDN sign.
Concrete; the IP address be retrieved as essential flow process; be after the PDN connection request is responded; will inevitably return corresponding IP address and give terminal; wherein; what need further specify is, the IP address obtain also can be by follow-up be that one or more PDN connect the dhcp process of initiating and obtain by terminal, this variation does not influence protection scope of the present invention.
Then be divided into following two kinds of situations but whether terminal can receive the feedback of PDN sign:
Situation one: the network equipment (as HSGW) just distributes after receiving the identical indication in IP address under the situation of PDN sign, terminal can only receive the IP address that a plurality of PDN connect correspondence in this step, and when the IP address that has at least two PDN connection correspondences is identical, (be among the step S903 described later, at least two IP addresses of terminal judges existence are identical) is received as the PDN sign that a plurality of PDN connect the correspondence of distributing.
Situation two: no matter whether the IP address is identical for the network equipment (as HSGW), being each PDN connects under the situation of distributing the PDN sign, in this step, terminal can directly receive the feedback of IP address and PDN sign, and need not through determining step, but received PDN sign wouldn't be used for communication or the foundation that each PDN connects, and enables the triggering message that PDN represents until receiving.
Whether step S903, a plurality of PDN of terminal judges connect the IP address of correspondence identical;
When the IP address that has at least two PDN connection correspondences is identical, execution in step S904;
When not having identical IP address, execution in step S905.
Step S904, terminal send and trigger the message that at least two identical PDN of corresponding IP address connect the corresponding PDN sign of use, set up PDN and connect.
Step S905, terminal use the IP address to set up the PDN connection.
In the case; each establishment of connection process and data flow transmission course do not re-use PDN and identify, and each connects but rely on the IP address designation, wherein; also comprise the step of the corresponding relation of preserving PDN connection and IP address, this belongs to protection scope of the present invention equally.。
HSGW directly distributes the situation of PDN sign in corresponding the above embodiments nine, as shown in figure 10, be the embodiment of the invention ten, a kind of schematic flow sheet of realizing the judgement of IP address and triggering the PDN connection method for building up of enabling the PDN sign by terminal may further comprise the steps:
Step S1001, UE have been connected to evolution HRPD network, and UE sends the PDN connection to HSGW and sets up request message, has comprised APN1 (Access Point Name, Access Point Name) in the message.
After step S1002, HSGW received the request of UE, to the PDN GW1 transmission proxy-mobile IP binding update messages of APN1 correspondence, request connected with this PDN GW, namely sets up the GRE bearing tunnel.
Step S1003, PDN GW1 have received the request that connects, so loopback proxy-mobile IP binding acknowledgement message, have carried simultaneously to be the UE IP address allocated.
Step S1004, HSGW send PDN connection foundation to UE and accept message, and the PDN sign (PDN identifier1) and the PDN GW1 that have carried the HSGW distribution in the message are the UE IP address allocated.
Step S1005, UE communicate by HSGW and PDN GW1, but do not increase PDN identifier1 before packet, namely use normal IP bag.
Step S1006, UE initiate new business, and the PDN that this service needed please be looked for novelty connects, so UE sends PDN to HSGW and connect and set up request message, have comprised APN2 in the message.
After step S1007, HSGW received request, to the PDN GW2 transmission proxy-mobile IP binding update messages of APN2 correspondence, request connected with this PDN GW, namely sets up gre tunneling.
Step S1008, PDN GW2 have received the request that connects, so loopback proxy-mobile IP binding acknowledgement message, have carried simultaneously to be the UE IP address allocated.
Step S1009, HSGW send PDN connection foundation to UE and accept message, have carried the PDN sign (PDN identifier2) that HSGW distributes in the message.
Therefore step S1010, UE are new service request IP address, send DHCP Discover message to HSGW, for represent this Address requests at be PDN GW2, carried PDN identifier2 in the dhcp message.
After step S1011, HSGW receive DHCP Discover message, as DHCP proxy, message is re-send to PDN GW2, can carry the IP address that obtains among the step S1008 in the message.
Step S1012, PDN GW2 confirm DHCP Discover message, and loopback DHCP ACK message.
Step S1013, HSGW send to UE with DHCP ACK.
Step S1014, UE judge that resulting two IP address values are identical.
Step S1015, UE send message to HSGW, the PDN sign that indication UE distributes before preparing to bring into use.
Step S1016, HSGW loopback acknowledge message.
All increase PDNidentifier1 before the data packets transmitted between step S1017, UE and PDN GW1.
All increased PDNidentifier2 before the data packets transmitted between step S1018, UE and PDN GW2.
The technical scheme of the embodiment of the invention has the following advantages, trigger user face data bag use PDN sign because only identical situation occurs for the portable terminal addresses distributed at PDN GW, therefore avoided all using the PDN sign waste of network resources that causes at all situations, improved resource utilization.
HSGW just connects the situation of distributing PDN to identify for PDN corresponding in the terminal in corresponding the above embodiments nine after receiving the message that triggering that terminal sends enables the PDN sign, as shown in figure 11, be the embodiment of the invention 11, a kind of schematic flow sheet of realizing the judgement of IP address and triggering the PDN connection method for building up of enabling the PDN sign by terminal may further comprise the steps:
Step S1101, UE have been connected to evolution HRPD network, and UE sends the PDN connection to HSGW and sets up request message, has comprised APN1 (Access Point Name, Access Point Name) in the message.
After step S1102, HSGW received the request of UE, to the PDN GW1 transmission proxy-mobile IP binding update messages of APN1 correspondence, request connected with this PDN GW, namely sets up the GRE bearing tunnel.
Step S1103, PDN GW1 have received the request that connects, so loopback proxy-mobile IP binding acknowledgement message, have carried simultaneously to be the UE IP address allocated.
Step S1104, HSGW send PDN connection foundation to UE and accept message, and having carried PDN GW1 in the message is the UE IP address allocated.
Step S1105, UE communicate by HSGW and PDN GW1, namely use normal IP bag.
Step S1106, UE initiate new business, and the PDN that this service needed please be looked for novelty connects, so UE sends PDN to HSGW and connect and set up request message, have comprised APN2 in the message.
After step S1107, HSGW received request, to the PDN GW2 transmission proxy-mobile IP binding update messages of APN2 correspondence, request connected with this PDN GW, namely sets up gre tunneling.
Step S1108, PDN GW2 have received the request that connects, so loopback proxy-mobile IP binding acknowledgement message, have carried simultaneously to be the UE IP address allocated.
Step S1109, HSGW send PDN connection foundation to UE and accept message.
Therefore step S1110, UE are new service request IP address, send DHCP Discover message to HSGW, for represent this Address requests at be PDN GW2, carried APN2 in the dhcp message.
After step S1111, HSGW receive DHCP Discover message, as DHCP proxy, message is re-send to PDN GW2, can carry the IP address that obtains among the step S1008 in the message.
Step S1112, PDN GW2 confirm DHCP Discover message, and loopback DHCP ACK message.
Step S1113, HSGW send to UE with DHCP ACK, have comprised IP address allocated in the message.
Step S1114, UE judge that resulting two IP address values are identical.
Step S1115, UE send message to HSGW, and indication UE triggers and uses the PDN sign.
Step S1116, HSGW are that different PDN connect distribution PDN sign, and the loopback acknowledge message.
All increase PDNidentifier1 before the data packets transmitted between step S1117, UE and PDN GW1.
All increased PDNidentifier2 before the data packets transmitted between step S1118, UE and PDN GW2.
The technical scheme of the embodiment of the invention has the following advantages, because in the evolution HRPD network of supporting many PDN GW, only identical situation occurs for the portable terminal addresses distributed at PDN GW and trigger user face data bag use PDN sign, therefore avoided all using the PDN sign waste of network resources that causes at all situations, improved resource utilization.
Corresponding the above embodiments nine to embodiment 11, the embodiment of the invention also provides a kind of terminal, as shown in figure 12, is the embodiment of the invention 12, and a kind of structural representation of terminal comprises:
Sending module 1201 is used for sending the request of a plurality of PDN establishment of connection;
Whether judge module 1203 is identical for the IP address of judging a plurality of PDN connection correspondences that receiver module 1102 receives;
Above-mentioned module can be distributed in a device, also can be distributed in a plurality of devices.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
The technical scheme of the embodiment of the invention has the following advantages, because in the evolution HRPD network of supporting many PDN GW, only identical situation occurs for the portable terminal addresses distributed at PDN GW and trigger user face data bag use PDN sign, therefore avoided all using the PDN sign waste of network resources that causes at all situations, improved resource utilization.
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 based on such understanding by the mode that software adds necessary general hardware platform, 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 that some instructions are with so that a 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 module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.
Claims (28)
1. a packet data network PDN connects method for building up, it is characterized in that, may further comprise the steps:
Obtain at least two PDN and connect corresponding IP address, distribute corresponding PDN sign for described at least two PDN connect, and judge whether described at least two PDN connect corresponding IP address identical;
When the IP address that exists at least two described PDN to connect correspondence is identical, trigger at least two identical PDN of described corresponding IP address and connect the corresponding described PDN sign of use, set up described PDN and connect;
When the IP address that described at least two PDN connect correspondence is inequality, do not enable described PDN sign.
2. PDN connects method for building up according to claim 1, it is characterized in that, the described IP addresses that obtain at least two PDN connection correspondences are specially:
At least two PDN establishment of connections request that receiving terminal is initiated, and send carrying respectively at least two PDN Gateway of described at least two PDN establishment of connection request correspondences and set up request;
Receive the corresponding IP address of described at least two PDN connection that described at least two PDN Gateway return.
3. connect method for building up as PDN as described in the claim 2, it is characterized in that, in the request of described at least two PDN establishment of connections, specifically comprise corresponding Access Point Name.
4. connect method for building up as PDN as described in the claim 2, it is characterized in that, described be that at least two PDN connect and distribute after corresponding PDN identify, and also comprises:
Send described PDN to described terminal and connect corresponding IP address and/or PDN sign, and, when sending described PDN to connect corresponding IP address and/or PDN sign to described terminal or afterwards, when the IP address that exists described at least two PDN to connect correspondence is identical, trigger at least two identical PDN of described corresponding IP address and connect the corresponding described PDN sign of use, set up described PDN and connect.
5. PDN connects method for building up according to claim 1, it is characterized in that, also comprises:
Judge the indication information that whether has described PDN sign in the packet that receives; Or,
Judge the indication information that whether exists described PDN to identify in the bearing protocol of the packet that receives.
6. PDN connects method for building up according to claim 1, it is characterized in that, describedly judges that whether described at least two PDN connect corresponding IP address identical, also comprises:
When all described PDN connect corresponding IP address when inequality, preserve PDN and connect the relation corresponding with the IP address, and use described IP address area to belong to the packet of different PDN connections.
7. PDN connects method for building up according to claim 1, it is characterized in that, also comprises:
Receive the release request of at least one PDN connection of the terminal initiation of having set up at least two PDN connections;
Send the carrying release message to the PDN Gateway of the release request correspondence of described at least one PDN connection;
Receive the release response message that described PDN Gateway sends.
8. connect method for building up as PDN as described in the claim 8, it is characterized in that, also comprise:
After discharging at least one described PDN connection, and triggered before the described release when enabling the PDN sign, judgement all PDN this moment connect corresponding IP address and whether have identical situation;
If all described IP address values are all inequality, then stop the use of described PDN sign.
9. a PDN connects method for building up, it is characterized in that, may further comprise the steps:
Obtain at least two PDN and connect corresponding IP address, and judge whether described at least two PDN connect corresponding IP address identical;
When the IP address that exists at least two described PDN to connect correspondence is identical, for connecting, at least two identical PDN of described corresponding IP address distribute corresponding PDN sign, and trigger at least two identical PDN connections of described corresponding IP address and use corresponding described PDN sign, set up described PDN and connect;
When the IP address that described at least two PDN connect correspondence is inequality, be not that described at least two PDN connect the PDN sign of distributing correspondence.
10. connect method for building up as PDN as described in the claim 9, it is characterized in that, describedly obtain at least two PDN and connect corresponding IP addresses, be specially:
At least two PDN establishment of connections request that receiving terminal is initiated, and send carrying respectively at least two PDN Gateway of described at least two PDN establishment of connection request correspondences and set up request;
Receive the corresponding IP address of described at least two PDN connection that described at least two PDN Gateway return.
11. connect method for building up as PDN as described in the claim 10, it is characterized in that, in the request of described at least two PDN establishment of connections, specifically comprise corresponding Access Point Name.
12. connect method for building up as PDN as described in the claim 10, it is characterized in that described be that at least two PDN connect and distribute corresponding PDN to identify, and also comprises:
Send described PDN to described terminal and connect corresponding IP address and/or PDN sign.
13. connect method for building up as PDN as described in the claim 9, it is characterized in that, also comprise:
Judge the indication information that whether has described PDN sign in the packet that receives; Or,
Judge the indication information that whether exists described PDN to identify in the bearing protocol of the packet that receives.
14. connect method for building up as PDN as described in the claim 9, it is characterized in that, describedly judge that whether described at least two PDN connect corresponding IP address identical, also comprises:
When all described PDN connect corresponding IP address when inequality, preserve PDN and connect the relation corresponding with the IP address, and use described IP address area to belong to the packet of different PDN connections.
15. connect method for building up as PDN as described in the claim 9, it is characterized in that, also comprise:
Receive the release request of at least one PDN connection of the terminal initiation of having set up at least two PDN connections;
Send the carrying release message to the PDN Gateway of the release request correspondence of described at least one PDN connection;
Receive the release response message that described PDN Gateway sends.
16. connect method for building up as PDN as described in the claim 15, it is characterized in that, also comprise:
After discharging at least one described PDN connection, and triggered before the described release when enabling the PDN sign, judgement all PDN this moment connect corresponding IP address and whether have identical situation;
If all described IP address values are all inequality, then stop the use of described PDN sign.
17. a network equipment is characterized in that, comprises acquisition module, distribution module, and trigger module, is specially:
Described acquisition module is used for obtaining at least two PDN and connects corresponding IP address;
Described distribution module for the IP address that obtains according to described acquisition module, when the IP address that exists at least two described PDN to connect correspondence is identical, is that described at least two PDN connect the corresponding PDN sign of distribution maybe;
Described trigger module is used at least when the IP address that exists two described PDN to connect correspondence is identical, triggers at least two identical PDN connections of described corresponding IP address and uses corresponding described PDN sign, sets up described PDN and connects;
When the IP address that described at least two PDN connect correspondence is inequality, be not that described at least two PDN connect the PDN sign of distributing correspondence.
18. as the network equipment as described in the claim 17, it is characterized in that, also comprise:
Sending module is used for sending described PDN to terminal and connects corresponding IP address and/or PDN sign.
19. as the network equipment as described in the claim 17, it is characterized in that, also comprise:
Whether judge module is identical for the IP address of judging at least two PDN connection correspondences that described acquisition module obtains.
20. as the network equipment as described in the claim 17, it is characterized in that, also comprise:
Release module is used for discharging described at least one PDN and connects.
21. a PDN connects method for building up, it is characterized in that, may further comprise the steps:
Send the request of at least two PDN establishment of connections;
Receive described at least two PDN and connect corresponding IP address and PDN sign, judge whether described at least two PDN connect corresponding IP address identical, but do not enable described PDN sign;
When the IP address that exists at least two described PDN to connect correspondence is identical, send at least two identical PDN of the described corresponding IP of triggering address and connect the message of using corresponding described PDN to identify, set up described PDN and connect;
When the IP address that described at least two PDN connect correspondence is inequality, do not enable described PDN sign.
22. connect method for building up as PDN as described in the claim 21, it is characterized in that, in the request of described at least two PDN establishment of connections, specifically comprise corresponding Access Point Name.
23. connect method for building up as PDN as described in the claim 21, it is characterized in that, describedly judge that whether described at least two PDN connect corresponding IP address identical, also comprises:
When all described PDN connect corresponding IP address when inequality, preserve PDN and connect the relation corresponding with the IP address, and use described IP address area to belong to the packet of different PDN connections.
24. a PDN connects method for building up, it is characterized in that, may further comprise the steps:
Send the request of at least two PDN establishment of connections;
Receive described at least two PDN and connect corresponding IP address, and judge whether described at least two PDN connect corresponding IP address identical;
When the IP address that exists at least two described PDN to connect correspondence is identical, send and trigger the message that at least two identical PDN of described corresponding IP address connect the corresponding described PDN sign of use, and be received as the PDN sign that at least two identical PDN of described IP address connect distribution, use described PDN sign to set up described PDN and connect;
When the IP address that described at least two PDN connect correspondence is inequality, be not that described at least two PDN connect the PDN sign of distributing correspondence.
25. connect method for building up as PDN as described in the claim 24, it is characterized in that, in the request of described at least two PDN establishment of connections, specifically comprise corresponding Access Point Name.
26. connect method for building up as PDN as described in the claim 24, it is characterized in that, describedly judge that whether described at least two PDN connect corresponding IP address identical, also comprises:
When all described PDN connect corresponding IP address when inequality, preserve PDN and connect the relation corresponding with the IP address, and use described IP address area to belong to the packet of different PDN connections.
27. a terminal is characterized in that, comprising:
Sending module is used for sending the request of at least two PDN establishment of connections;
Receiver module be used for to receive IP address and/or PDN sign that the PDN of at least two PDN establishment of connection request correspondences that described sending module sends connects;
Trigger module is used at least when the IP address that exists two described PDN to connect correspondence is identical, and transmission triggers at least two identical PDN of described corresponding IP address and connects the message of using corresponding described PDN to identify, sets up described PDN connection;
When the IP address that described at least two PDN connect correspondence is inequality, do not enable described PDN sign.
28. as terminal as described in the claim 27, it is characterized in that, also comprise:
Whether judge module is identical for the IP address of judging at least two PDN connection correspondences that described receiver module receives.
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| CN103298148B (en) * | 2013-06-28 | 2017-04-12 | 华为技术有限公司 | Method for connecting mobile terminal to multiple PDNs (public data networks) through fixed network and related device |
| CN105306259B (en) * | 2015-09-28 | 2018-10-12 | 联想(北京)有限公司 | A kind of processing method and electronic equipment |
| CN115396510B (en) * | 2022-08-12 | 2024-03-15 | 西安广和通无线通信有限公司 | Communication method and communication module |
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