CN102932467A - Method and device for transmitting data packages - Google Patents
Method and device for transmitting data packages Download PDFInfo
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- CN102932467A CN102932467A CN2012104440035A CN201210444003A CN102932467A CN 102932467 A CN102932467 A CN 102932467A CN 2012104440035 A CN2012104440035 A CN 2012104440035A CN 201210444003 A CN201210444003 A CN 201210444003A CN 102932467 A CN102932467 A CN 102932467A
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Abstract
The invention relates to a method and a device for transmitting data packages. The method for transmitting data packages comprises that a first mobile terminal sets an initial data package, a first source address is a first home address corresponding to the first mobile terminal, and a first target address is a second home address corresponding to a second mobile terminal; and a first encapsulating data package is obtained through tunneling encapsulation of the initial data package and is then transmitted, a first encapsulating source address is a first network address of the first mobile terminal, and a first encapsulating target address is the second home address, so that a gateway can map the second home address to a second network address of the second mobile terminal. According to the method and the device for transmitting data packages, the first mobile terminal and the second mobile terminal can use home addresses, that is, the first mobile terminal and the second mobile terminal can transmit data packages to opposite mobile terminals and use the gateway to conduct Internet protocol (IP) mapping, application servers or other devices are not required to exchange network addresses and then conduct communication between mobile terminals, and the processing method is simple.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to a kind of transmission method and device of packet.
Background technology
Existing mobile communication packet field network is distributed to user terminal (User Equipment, UE) Internet protocol (Internet Protocol, IP) the address major part all is dynamic assignment, if when reconnecting behind reopening or the broken string after the UE shutdown, network allocation changes possibly to the IP address of UE.This situation is brought very large inconvenience to packet domain terminal mutual visit business, because when the IP address of distributing to UE changes at every turn, just need to re-start the interchange of IP address information, carries out data processing according to new IP address.
A kind of prior art is that the data services such as mobile phone QQ, MSN, Skype are evaded the inconvenient problem that the variation of IP address information brings by application server transfer IP address information.But this mode is to carry out the transfer of IP address information by the application deployment server, in application layer, and when the IP address changes, data processing is still very inconvenient.
Summary of the invention
The embodiment of the invention is for the defective of prior art, a kind of transmission method and device of packet are provided, the unique identification portable terminal is come in the marked network address that utilization increases newly, when having avoided the address, networking to change, need to learn that the network address of opposite end just can send the problem of packet.
First aspect, the embodiment of the invention provide a kind of transmission method of packet, and described method comprises:
The first portable terminal setting is treated to the initial data packets of the second portable terminal transmission, the first source address in the described initial data packets is corresponding the first home address of described the first portable terminal, and the first object address is corresponding the second home address of described the second portable terminal;
Described initial data packets is carried out tunnel encapsulation obtain the first encapsulated data packet and transmission, the first packaged source address in described the first encapsulated data packet is the first network address of described the first portable terminal, the first encapsulation destination address is described the second home address, so that gateway is mapped as described the second home address the second network address of described the second portable terminal.
Second aspect, the embodiment of the invention also provide a kind of transmission method of packet, and described method comprises:
Gateway receives the first encapsulated data packet that the first portable terminal sends, the first packaged source address in described the first encapsulated data packet is the first network address of described the first portable terminal, and the first encapsulation destination address is corresponding the second home address of the second portable terminal;
Described gateway is mapped as described the second home address the second network address of described the second portable terminal;
Described gateway sends to described the second portable terminal according to described second network address with described the first encapsulated data packet, so that described the second portable terminal obtains described first network address with described the first encapsulated data packet decapsulation.
The third aspect, the embodiment of the invention also provide a kind of transmission method of packet, and described method comprises:
The first portable terminal setting is treated to comprise the first home address of described the first portable terminal in the described initial data packets to the initial data packets of the second portable terminal transmission; And the first source address in the described initial data packets be described the first portable terminal the first network address, the first object address is corresponding the second home address of described the second portable terminal;
Send initial data packets to the second portable terminal, so that gateway is mapped as the second home address of described initial data packets the second network address of described the second portable terminal.
Fourth aspect, the embodiment of the invention also provide a kind of transmission method of packet, and described method comprises:
Gateway receives the initial data packets that the first portable terminal sends, and comprises the first home address of described the first portable terminal in the described initial data packets; And the first source address in the described initial data packets is the first network address of described the first portable terminal, and the first object address is corresponding the second home address of described the second portable terminal;
Described gateway is mapped as described the second home address the second network address of described the second portable terminal;
Described gateway sends to described the second portable terminal according to described second network address with described initial data packets, so that described the second portable terminal obtains described first network address from described initial data packets.
The 5th aspect, the embodiment of the invention also provide a kind of transmitting device of packet, and described device comprises:
Setting unit, being used for the first portable terminal setting treats to the initial data packets of the second portable terminal transmission, the first source address in the described initial data packets is corresponding the first home address of described the first portable terminal, and the first object address is corresponding the second home address of described the second portable terminal;
Encapsulation unit, be used for that described initial data packets is carried out tunnel encapsulation and obtain the first encapsulated data packet and transmission, the first packaged source address in described the first encapsulated data packet is the first network address of described the first portable terminal, the first encapsulation destination address is described the second home address, so that gateway is mapped as described the second home address the second network address of described the second portable terminal.
The 6th aspect, the embodiment of the invention also provide a kind of transmitting device of packet, and described device comprises:
Receiving element, be used for gateway and receive the first encapsulated data packet that the first portable terminal sends, the first packaged source address in described the first encapsulated data packet is the first network address of described the first portable terminal, and the first encapsulation destination address is corresponding the second home address of the second portable terminal;
Map unit is used for the second network address that described gateway is mapped as described the second home address described the second portable terminal;
Transmitting element is used for described gateway and according to described second network address described the first encapsulated data packet is sent to described the second portable terminal, so that described the second portable terminal obtains described first network address with described the first encapsulated data packet decapsulation.
The 7th aspect, the embodiment of the invention also provide a kind of transmitting device of packet, and described device comprises:
Setting unit is used for the first portable terminal setting and treats to comprise the first home address of described the first portable terminal in the described initial data packets to the initial data packets of the second portable terminal transmission; And the first source address in the described initial data packets be described the first portable terminal the first network address, the first object address is corresponding the second home address of described the second portable terminal;
Transmitting element is used for sending initial data packets to described the second portable terminal, so that gateway is mapped as described the second home address in the described initial data packets second network address of described the second portable terminal.
Eight aspect, the embodiment of the invention also provide a kind of transmitting device of packet, and described device comprises:
Receiving element is used for gateway and receives the initial data packets that the first portable terminal sends, and comprises the first home address of described the first portable terminal in the described initial data packets; And the first source address in the described initial data packets is the first network address of described the first portable terminal, and the first object address is corresponding the second home address of described the second portable terminal;
Map unit is used for the second network address that described gateway is mapped as described the second home address described the second portable terminal;
Transmitting element is used for described gateway and according to described second network address described initial data packets is sent to described the second portable terminal, so that described the second portable terminal obtains described first network address from described initial data packets.
The transmission method of the packet of present embodiment and device, the first portable terminal and the second portable terminal can utilize the home address namely can send packet to the opposite end portable terminal, utilize gateway to carry out the IP mapping, the variation of the network address sends not impact of packet to the first portable terminal and the second portable terminal, do not need application server or miscellaneous equipment first switching network address between portable terminal to communicate by letter, processing method is simple again.
Description of drawings
Fig. 1 is the flow chart of the transmission method of embodiment of the invention packet;
Fig. 2 is another flow chart of the transmission method of embodiment of the invention packet;
Fig. 3 is the flow chart of the transmission method of another embodiment of the present invention packet;
Fig. 4 is another flow chart of the transmission method of another embodiment of the present invention packet;
Fig. 5 is the schematic diagram of the transmitting device of embodiment of the invention packet;
Fig. 6 is another schematic diagram of the transmitting device of embodiment of the invention packet;
Fig. 7 is the schematic diagram of the transmitting device of another embodiment of the present invention packet;
Fig. 8 is another schematic diagram of the transmitting device of another embodiment of the present invention packet.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
The embodiment of the invention directly realizes the packet domain terminal mutual visit at the mobile communication packet field network in to the situation of UE dynamic IP address allocation, does not need application server or other to exchange first the method for communicating by letter again in the IP address between UE.
The embodiment of the invention can but be not limited to for various mobile communication packet field networks: Long Term Evolution (Long Term Evolution, LTE), high-speed downlink packet access (High Speed DownlinkPacket Access, HSPA), enhanced high-speed downlink packets access (HSPA Evolution, HSPA+), universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS), claim code division multiple access access (Code Division Multiple Access, CDMA), TD SDMA (Time Division-Synchronous Code Division Multiple Access, TD-SCDMA), general packet radio service (General Packet Radio Service, GPRS), enhanced data rates for gsm evolution (Enhanced Data Rate for GSM Evolution, EDGE), worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, WiMAX).
The embodiment of the invention is in the existing network address, and on IP address assignment mechanism, newly-increased home address namely identifies IP(Identity IP) address.
This sign IP fixes each terminal and is unique, and form can be IPv6 or IPv4, and fully independent with the IP address format of network allocation, identify in addition IP not participation network communication IP address assignment, do not take the IP address real resource of network service.
Fig. 1 is the flow chart of the transmission method of embodiment of the invention packet, and as shown in the figure, present embodiment is the concrete processing procedure of UE side, comprises the steps:
When UE1 arranges initial data packets to UE2, the UE1 side is not also known the live network address of UE2, be IP-2, and only know the home address of UE2, be I-IP-2, and the home address of UE2 is unique corresponding and constant with UE, and so just can make things convenient for UE1 is that UE2 sends packet, for example IP packet.
And UE1 knows network address IP-1 and the home address I-IP-1 of local terminal, so the Src address in the initial data packets that arranges to UE2 extends this as I-IP-1, extend this as I-IP-2 in the one Dest address, concrete, can be filled in by the application program of UE1.
UE1 has the IP tunnel function, the IP initial data packets is encapsulated, the first encapsulation Src address of the first encapsulated data packet after the encapsulation is IP-1, the first encapsulation Dest address is I-IP-2, and gateway is safeguarded network address IP-1 and the home address I-IP-1 that UE1 is arranged, and also safeguards simultaneously network address IP-2 and the home address I-IP-2 that UE2 is arranged; When receiving the first encapsulated data packet of UE1 transmission, obtain the first encapsulation Dest address I-IP-2 of this encapsulated data packet, gateway utilizes the IP mapping function the first encapsulation Dest address I-IP-2 to be mapped as the network address IP-2 of UE2.
Again as shown in Figure 1, present embodiment also comprises the steps:
After UE2 receives the first encapsulated data packet, the first encapsulated data packet is carried out decapsulation, decapsulation obtains later on initial IP packet, and to obtain the first encapsulation Src address be the network address IP-1 of UE1.This moment, UE2 obtained the network address IP-1 of UE1 by the first encapsulated data packet that this receives the UE1 transmission, and itself also preserved the fixing unique identification address I-IP-1 of UE1.
Because UE2 has known the network address IP-1 of UE1, also know the home address I-IP-1 of UE1, so UE2 fills in I-IP-2 in the 2nd Src address of replying packet, I-IP-1 is filled in the 2nd Dest address, and is concrete, can be filled in by the application program of UE1.
UE2 also has the IP tunnel function, IP is replied packet to be encapsulated, the second encapsulation Src address of the second encapsulated data packet after the encapsulation is I P-2, the second encapsulation Dest address is IP-1, and when gateway when receiving the second encapsulated data packet that UE1 sends, obtain the first encapsulation Dest address ip-1 of this encapsulated data packet.
Step 108 is carried out the tunnel decapsulation to the second encapsulated data packet, obtains second network address ip 2.
After UE1 receives the second encapsulated data packet, the second encapsulated data packet is carried out decapsulation, decapsulation obtains later on IP and replys packet, and to obtain the second encapsulation Src address be the network address IP-2 of UE2.This moment, UE1 obtained the network address IP-2 of UE2 by the second encapsulated data packet that this receives the UE2 transmission, and itself also preserved the fixing unique identification address I-IP-2 of UE2.
Like this, after this UE1 just can send to UE1 as UE2 and send follow-up encapsulated data packet to UE2 the second encapsulated data packet, because obtained the network address IP-2 of UE2, IP-2 just can directly have been filled in the encapsulation Dest address of follow-up like this encapsulated data packet, but not can only fill in I-IP-2 when sending the first encapsulated data packet.Gateway just can directly be transmitted according to encapsulation Dset address ip-2 after receiving follow-up encapsulated data packet, and does not need to carry out the IP mapping, and the second home address has been mapped as the second network address.
All have the other side's network address IP and home address I-IP this moment for UE1 and UE2, if all be similar to the process of step 105 and 106 when need to send encapsulated data packet to the opposite end like this, the Dest address that can directly network address IP be filled in encapsulated data packet has suffered, process with regard to not needing gateway to carry out again the IP mapping like this, directly according to the Dest address encapsulated data packet is sent.
Fig. 2 is another flow chart of the transmission method of embodiment of the invention packet, and as shown in the figure, present embodiment is the concrete processing procedure of gateway side corresponding to a upper embodiment, comprises the steps:
Step 202 is mapped as the second home address the second network address of UE2;
Gateway is safeguarded network address IP-1 and the home address I-IP-1 that UE1 is arranged, and also safeguards simultaneously network address IP-2 and the home address I-IP-2 that UE2 is arranged; When receiving the first encapsulated data packet of UE1 transmission, obtain the first encapsulation Des t address I-IP-2 of this encapsulated data packet, gateway utilizes the IP mapping function the first encapsulation Dest address I-IP-2 to be mapped as the network address IP-2 of UE2.
Step 203 sends to UE2 according to second network address ip-2 with the first encapsulated data packet, so that UE2 obtains first network address ip-1 with the first encapsulated data packet decapsulation.
Again as shown in Figure 2, present embodiment also comprises the steps:
Step 205 sends to UE1 according to the first network address with the second encapsulated data packet, so that UE1 obtains second network address ip-2 with the second encapsulated data packet decapsulation.
Because UE2 is when receiving the first encapsulated data packet of UE1, just obtained the first network address ip-1 of UE1, so in encapsulation the second encapsulated data packet, the second encapsulation Dest address is extended this as IP-1, when gateway receives the second encapsulated data packet like this, the second encapsulation Dest address is IP-1, just can directly according to IP-1 the second encapsulated data packet have been sent to UE1.UE1 has just obtained the second network address ip-2 of UE2 with the second encapsulated data packet decapsulation.When follow-up UE1 sent the formality encapsulated data packet to UE2, IP-2 can directly be filled in the encapsulation Dest address of follow-up encapsulated data packet, and gateway just can directly send to UE2 according to IP-2 with follow-up encapsulated data packet like this, and need not to re-use the IP mapping.
The transmission method of embodiment of the invention packet carries out the encapsulation of initial data packets in the UE side, again and be encapsulated into the destination address of home address when not knowing the destination address of the network address, can carry out at the gateway of network layer the IP mapping, the home address is mapped as the network address, and do not need the network address of end side understand target terminal, can solve the problem that the UE initial ip address changes, the UE of application layer only need to know that the sign IP of own and object UE gets final product, the variation of IP address is fully transparent to it, do not need application server or miscellaneous equipment to exchange first the communication that the IP address is carried out UE again between UE, processing method is simple.
Fig. 3 is the flow chart of the transmission method of another packet of the embodiment of the invention, and as shown in the figure, present embodiment is the concrete processing procedure of UE side, comprises the steps:
Step 301, UE1 arrange the initial data packets for the treatment of to the UE2 transmission, comprise the first home address I-IP-1 of UE1 in the initial data packets; And the first source address in the initial data packets (a Src address) be UE1 first network address ip-1, first object address (a Dest address) is corresponding the second home address I-IP-2 of UE2; Initial data packets can be the IP packet;
When UE1 sent initial data packets to UE2, the UE1 side was not also known the live network address of UE2, i.e. IP-2, and only know the home address of UE2, be I-IP-2, and the home address of UE2 is fixing unique and constant, so just can make things convenient for UE1 is UE2 transmission IP packet.
And UE1 knows network address IP-1 and the home address I-IP-1 of local terminal, so the Src of UE1 extends this as the network address IP-1 of UE1 in the initial data packets that sends to UE2, the one Dest address extends this as the home address I-IP-2 of UE2, concrete, can be filled in by the application program of UE1.The first home address I-IP-1 that can in the load (Payload) of packet, comprise in addition UE1.
Step 302, send initial data packets to UE2, so that gateway is mapped as the second home address of initial data packets the second network address of UE2.
Gateway is safeguarded network address IP-1 and the home address I-IP-1 that UE1 is arranged, and also safeguards simultaneously network address IP-2 and the home address I-IP-2 that UE2 is arranged; When receiving the IP initial data packets of UE1 transmission, obtain a Des t address I-IP-2 of this initial data packets, gateway utilizes the IP mapping function the one Dest address I-IP-2 to be mapped as the network address IP-2 of UE2; Gateway sends to UE2 according to the networking address ip-2 of UE2 with initial data packets.
Again as shown in Figure 3, present embodiment also comprises the steps:
Step 303, UE2 receive initial data packets;
Step 304, from initial data packets, obtain first network address ip-1.
After UE2 receives the IP initial data packets, obtaining a Src address is the networking address ip-2 of network address IP-1 and the Dest of UE1, and the home address I-IP-1 that from the Payload of IP packet, obtains UE1, learn that this packet is that UE1 sends to oneself.
This moment, UE2 obtained the network address IP-1 of UE1 by the IP initial data packets that this receives the UE1 transmission, and itself also preserved fixing and unique home address I-IP-1 of UE1.
Step 305, UE2 arrange the answer packet for the treatment of to the UE1 transmission, reply in the packet to comprise corresponding the second home address I-IP-2 of UE2; Second source address (the 2nd Src address) of replying in the packet is that second network address ip-2, the second destination address (the 2nd Dest address) is first network address ip-1;
Because UE2 has known the network address IP-1 of UE1, so UE2 fills in IP-2 in the 2nd Src address that IP replys packet, IP-1 is filled in the 2nd Dest address, concrete, can be filled in by the application program of UE2. in the Payload of packet, comprise in addition the home address information I-IP-2 of UE2 self.
Step 306, send a reply packet to UE1, so that gateway will be replied Packet Generation to UE1 according to the first network address.
After gateway is received the IP packet, because the 2nd Dest address is network address IP-1, so no longer need its IP mapping function to process, directly will encapsulate the IP Packet Generation to UE1 according to Dest address ip-1.
Step 307, UE1 receive and reply packet, obtain second network address ip-2.
After UE1 receives that IP replys packet, the 2nd Src address that recognizes is exactly network address IP-2, the 2nd Dest address is network address IP-1, can from IP replys the Payload of packet, obtain the home address I-IP-2 of UE2 in addition, and itself also preserve the fixing unique identification address I-IP-2 of UE2.
Like this, after this UE1 just can send a reply the packet to UE1 as UE2 and send the follow-up data bag to UE2, because obtained the network address IP-2 of UE2, IP-2 just can directly have been filled in the Dest address of follow-up data bag like this, but not can only fill in I-IP-2 when sending initial data packets.Gateway just can directly be transmitted according to the Dset address after receiving the follow-up data bag, and does not need to carry out the IP mapping, and the second home address has been mapped as the second network address.
All have the other side's network address IP and home address I-IP this moment for UE1 and UE2, if all be similar to the process of step 305 and 306 when need to send the IP packet to the opposite end like this, the Dest address that can directly network address IP be filled in the IP packet has suffered, so do not need gateway to carry out again the IP mapping and process, directly according to the Dest address with the IP Packet Generation.
Fig. 4 is another flow chart of the transmission method of another packet of the embodiment of the invention, and as shown in the figure, present embodiment is the concrete processing procedure of gateway side corresponding to a upper embodiment, comprises the steps:
Gateway is safeguarded network address IP-1 and the home address I-IP-1 that UE1 is arranged, and also safeguards simultaneously network address IP-2 and the home address I-IP-2 that UE2 is arranged; When receiving the IP initial data packets of UE1 transmission, obtain a Dest address I-IP-2 of this initial data packets.
Step 402 is mapped as the second home address the second network address of UE2;
Gateway utilizes the IP mapping function that the one Dest address I-IP-2 is mapped as the network address IP-2 of UE2,
Step 403 sends to UE2 according to the second network address with initial data packets, so that UE2 obtains first network address ip-1 from initial data packets.
Gateway sends to UE2 according to the networking address ip-2 of UE2 with initial data packets,
Again as shown in Figure 4, present embodiment also comprises the steps:
Step 405 will be replied Packet Generation to UE1 according to the first network address, so that UE1 obtains second network address ip-2 from reply packet.
After gateway is received the IP packet, because the 2nd Dest address is network address IP-1, so no longer need its IP mapping function to process, directly will encapsulate the IP Packet Generation to UE1 according to Dest address ip-1.
Because UE2 is when receiving the initial data packets of UE1, just obtained the first network address ip-1 of UE1, so when the answer packet is set, the 2nd Dest address is extended this as IP-1, gateway receives when replying packet like this, the 2nd Dest address is IP-1, just can be directly will reply Packet Generation to UE1 according to IP-1.UE1 has just obtained the second network address ip-2 of UE2.When follow-up UE1 sent the formality packet to UE2, IP-2 can directly be filled in the encapsulation Dest address of follow-up data bag, and gateway just can directly send to UE2 according to IP-2 with the follow-up data bag like this, and need not to re-use the IP mapping.
The transmission method of the packet of present embodiment, when sending initial data packets, application layer UE in load, carries this terminal I-IP, and in the Dest address, fill in the I-IP of target terminal, utilize the gateway of network side to carry out the IP address that IP is mapped as target terminal, target terminal then can obtain according to initial data packets the IP address of source terminal.The IP address of informing the source terminal target terminal in the packet is replied in the target terminal utilization, terminal need not to know the IP address of distant terminal when sending packet like this, the problem that the initial IP of the same UE of solution changes, do not need application server or miscellaneous equipment to exchange first the IP address between UE and communicate by letter, processing method is simple.And UE does not need to have the IP tunnel function, does not increase IP bag size.
Fig. 5 is the schematic diagram of the transmitting device of embodiment of the invention packet, and as shown in the figure, present embodiment specifically comprises: setting unit 11 and 12 encapsulation units.
Setting unit 11 is used for the first mobile terminal UE 1 initial data packets for the treatment of to 2 transmissions of the second mobile terminal UE is set, the first source address in the initial data packets (a Src address) is corresponding the first home address I-IP-1 of the first portable terminal, and first object address (a Dest address) is corresponding the second home address I-IP-2 of UE2;
UE1 has the IP tunnel function, the IP initial data packets is encapsulated, the first encapsulation Src address of the first encapsulated data packet after the encapsulation is IP-1, the first encapsulation Dest address is I-IP-2, and gateway is safeguarded network address IP-1 and the home address I-IP-1 that UE1 is arranged, and also safeguards simultaneously network address IP-2 and the home address I-IP-2 that UE2 is arranged; When receiving the first encapsulated data packet of UE1 transmission, obtain the first encapsulation Des t address I-IP-2 of this encapsulated data packet, gateway utilizes the IP mapping function the first encapsulation Dest address I-IP-2 to be mapped as the network address IP-2 of UE2.
Again as shown in Figure 5, present embodiment also comprises receiving element 13 and decapsulation unit 14.
Receiving element 13 is used for UE2 and receives the first encapsulated data packet; Decapsulation unit 14 is used for the first encapsulated data packet is carried out the tunnel decapsulation, obtains first network address ip-1.
Described setting unit 12 also is used for UE2 the answer packet for the treatment of to the UE1 transmission is set, second source address (the 2nd Src address) of replying in the packet is the second home address I-IP-2, and the second destination address (the 2nd Dest address) is the first home address I-IP-1; Replying packet can be the IP packet;
Described encapsulation unit 13 is used for that also the answer packet is carried out tunnel encapsulation and obtains the second encapsulated data packet and transmission, the second packaged source address in the second encapsulated data packet (the second encapsulation Src address) is second network address ip-2, the second encapsulation destination address (the second encapsulation Dest address) is first network address ip-1, so that gateway sends to UE1 according to the first network address with the second encapsulated data packet.
Described receiving element 13 also is used for UE1 and receives the second encapsulated data packet; Described decapsulation unit 14 also is used for the second encapsulated data packet is carried out the tunnel decapsulation, obtains second network address ip 2.Initial data packets is the Internet protocol IP packet, and described first network address and second network address are the IP address, and described the first home address and the second home address are sign IP address.
All have the other side's network address IP and home address I-IP this moment for UE1 and UE2, if all be similar to the process of step 105 and 106 when need to send encapsulated data packet to the opposite end like this, the Dest address that can directly network address IP be filled in encapsulated data packet has suffered, process with regard to not needing gateway to carry out again the IP mapping like this, directly according to the Dest address encapsulated data packet is sent.
Fig. 6 is another schematic diagram of the transmitting device of embodiment of the invention packet, and as shown in the figure, present embodiment specifically comprises: receiving element 21, map unit 22 and transmitting element 23.
Receiving element 21 is used for gateway and receives the first encapsulated data packet that UE1 sends, the first packaged source address in the first encapsulated data packet (the first encapsulation Src address) is that first network address ip-1, the first encapsulation destination address (the first encapsulation Dest address) of UE1 is corresponding the second home address I-IP-2 of UE2;
Transmitting element 23 is used for according to second network address ip-2 the first encapsulated data packet being sent to UE2, so that UE2 obtains first network address ip-1 with the first encapsulated data packet decapsulation.
Described receiving element 21 also is used for gateway and receives the second encapsulated data packet that UE2 sends, the second packaged source address in the second encapsulated data packet (the second encapsulation Src address) is that second network address ip-2, the second encapsulation destination address (the second encapsulation Dest address) of UE2 is first network address ip-1;
Described transmitting element 23 also is used for according to the first network address the second encapsulated data packet being sent to UE1, so that UE1 obtains second network address ip-2 with the second encapsulated data packet decapsulation.Described first network address and second network address are the IP address, and described the first home address and the second home address are sign IP address.
The transmitting device of embodiment of the invention packet carries out the encapsulation of initial data packets in the UE side, again and be encapsulated into the destination address of home address when not knowing the destination address of the network address, can carry out at the gateway of network layer the IP mapping, the home address is mapped as the network address, and do not need the network address of end side understand target terminal, can solve the problem that the UE initial ip address changes, the UE of application layer only need to know that the sign IP of own and object UE gets final product, the variation of IP address is fully transparent to it, do not need application server or miscellaneous equipment between UE, to exchange first the communication that the IP address is carried out UE again, process simple.
Fig. 7 is the schematic diagram of the transmitting device of another embodiment of the present invention packet, and as shown in the figure, present embodiment specifically comprises: setting unit 31 and transmitting element 32.
Setting unit 31 is used for UE1 the initial data packets for the treatment of to the UE2 transmission is set, and comprises the first home address I-IP-1 of UE1 in the initial data packets; And the first source address in the initial data packets (a Src address) be UE1 first network address ip-1, first object address (a Dest address) is corresponding the second home address I-IP-2 of UE2; Initial data packets can be IP packet location;
Transmitting element 32 is used for sending initial data packets to UE2, so that gateway is mapped as the second home address of initial data packets the second network address of UE2.
Again as shown in Figure 7, present embodiment also comprises: receiving element 33 and acquiring unit 34.
Receiving element 33 is used for UE2 and receives initial data packets; Acquiring unit 34 is used for obtaining first network address ip-1 from initial data packets.
Described setting unit 31 also is used for UE2 the answer packet for the treatment of to the UE1 transmission is set, and replys in the packet to comprise corresponding the second home address I-IP-2 of UE2; Second source address (the 2nd Src address) of replying in the packet is that second network address ip-2, the second destination address (the 2nd Dest address) is first network address ip-1;
Described transmitting element 32 also is used for sending a reply packet to UE1, so that gateway will be replied Packet Generation to UE1 according to the first network address.
Described receiving element 33 also is used for UE1 and receives the answer packet, obtains second network address ip-2.Described initial data packets specifically comprises described the first home address in load P ayload; Described answer packet specifically comprises described the second home address in load.Described first network address and second network address are the IP address, and described the first home address and the second home address are sign IP address.
All have the other side's network address IP and home address I-IP this moment for UE1 and UE2, if all be similar to the process of step 305 and 306 when need to send the IP packet to the opposite end like this, the Dest address that can directly network address IP be filled in the IP packet has suffered, so do not need gateway to carry out again the IP mapping and process, directly according to the Dest address with the IP Packet Generation.
Fig. 8 is another schematic diagram of the transmitting device of another embodiment of the present invention packet, and as shown in the figure, present embodiment specifically comprises: receiving element 41, map unit 42 and transmitting element 43.
Receiving element 41 is used for gateway and receives the initial data packets that UE1 sends, and comprises the first home address I-IP-1 of UE1 in the initial data packets; And the first source address in the initial data packets (a Src address) is the first network address ip-1 of UE1, and first object address (a Dest address) is corresponding the second home address I-IP-2 of UE2; Initial data packets can be the IP packet;
Transmitting element 43 is used for according to the second network address initial data packets being sent to UE2, so that UE2 obtains first network address ip-1 from initial data packets.
Described receiving element 41 also is used for gateway and receives the answer packet that UE2 sends, and replys in the packet to comprise corresponding the second home address I-IP-2 of UE2; Second source address (the 2nd Src address) of replying in the packet is that second network address ip-2, the second destination address (the 2nd Dest address) is first network address ip-1;
Described transmitting element 43 also is used for will replying Packet Generation to UE1 according to the first network address, so that UE1 obtains second network address ip-2 from reply packet.Described initial data packets specifically comprises described the first home address in load; Described answer packet specifically comprises described the second home address in load.Described first network address and second network address are the IP address, and described the first home address and the second home address are sign IP address.
The transmitting device of the packet of present embodiment, when sending initial data packets, application layer UE in load, carries this terminal I-IP, and in the Dest address, fill in the I-IP of target terminal, utilize the gateway of network side to carry out the IP address that IP is mapped as target terminal, target terminal then can obtain according to initial data packets the IP address of source terminal.The IP address of informing the source terminal target terminal in the packet is replied in the target terminal utilization, terminal need not to know the IP address of distant terminal when sending packet like this, the problem that the initial IP of the same UE of solution changes, do not need application server or miscellaneous equipment to exchange first the IP address between UE and communicate by letter, processing method is simple.And UE does not need to have the IP tunnel function, does not increase IP bag size.
The professional should further recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, composition and the step of each example described in general manner according to function in the above description.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.The professional and technical personnel can specifically should be used for realizing described function with distinct methods to each, but this realization should not thought and exceeds scope of the present invention.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can use the software module of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
Above-described embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present invention; the protection range that is not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (36)
1. the transmission method of a packet is characterized in that, described method comprises:
The first portable terminal setting is treated to the initial data packets of the second portable terminal transmission, the first source address in the described initial data packets is corresponding the first home address of described the first portable terminal, and the first object address is corresponding the second home address of described the second portable terminal;
Described initial data packets is carried out tunnel encapsulation obtain the first encapsulated data packet and transmission, the first packaged source address in described the first encapsulated data packet is the first network address of described the first portable terminal, the first encapsulation destination address is described the second home address, so that gateway is mapped as described the second home address the second network address of described the second portable terminal.
2. method according to claim 1 is characterized in that, described method also comprises:
Described the second portable terminal receives described the first encapsulated data packet;
Described the first encapsulated data packet is carried out the tunnel decapsulation, obtain described first network address.
3. method according to claim 2 is characterized in that, described method also comprises:
Described the second portable terminal setting treats that the second source address in the described answer packet is described the second home address to the answer packet of described the first portable terminal transmission, and the second destination address is described the first home address;
Described answer packet is carried out tunnel encapsulation obtain the second encapsulated data packet and transmission, the second packaged source address in described the second encapsulated data packet is described second network address, the second encapsulation destination address is described first network address, so that described gateway sends to described the first portable terminal according to described first network address with described the second encapsulated data packet.
4. method according to claim 4 is characterized in that, described method also comprises:
Described the first portable terminal receives described the second encapsulated data packet;
Described the second encapsulated data packet is carried out the tunnel decapsulation, obtain described second network address.
5. the transmission method of arbitrary described packet according to claim 1-4, it is characterized in that, described initial data packets is the Internet protocol IP packet, and described first network address and second network address are the IP address, and described the first home address and the second home address are sign IP address.
6. the transmission method of a packet is characterized in that, described method comprises:
Gateway receives the first encapsulated data packet that the first portable terminal sends, the first packaged source address in described the first encapsulated data packet is the first network address of described the first portable terminal, and the first encapsulation destination address is corresponding the second home address of the second portable terminal;
Described gateway is mapped as described the second home address the second network address of described the second portable terminal;
Described gateway sends to described the second portable terminal according to described second network address with described the first encapsulated data packet, so that described the second portable terminal obtains described first network address with described the first encapsulated data packet decapsulation.
7. the transmission method of packet according to claim 6 is characterized in that, described method also comprises:
Described gateway receives the second encapsulated data packet that described the second portable terminal sends, and the second packaged source address in described the second encapsulated data packet is the second network address of described the second portable terminal, and the second encapsulation destination address is described first network address;
According to described first network address described the second encapsulated data packet is sent to described the first portable terminal, so that described the first portable terminal obtains described second network address with described the second encapsulated data packet decapsulation.
8. according to claim 6 or the transmission method of 7 described packets, it is characterized in that described first network address and second network address are the IP address, described the first home address and the second home address are sign IP address.
9. the transmission method of a packet is characterized in that, described method comprises:
The first portable terminal setting is treated to comprise the first home address of described the first portable terminal in the described initial data packets to the initial data packets of the second portable terminal transmission; And the first source address in the described initial data packets be described the first portable terminal the first network address, the first object address is corresponding the second home address of described the second portable terminal;
Send initial data packets to the second portable terminal, so that gateway is mapped as the second home address of described initial data packets the second network address of described the second portable terminal.
10. the transmission method of packet according to claim 9 is characterized in that, described method also comprises:
Described the second portable terminal receives described initial data packets;
From described initial data packets, obtain described first network address.
11. method according to claim 10 is characterized in that, described method also comprises:
Described the second portable terminal setting is treated to comprise corresponding the second home address of described the second portable terminal in the described answer packet to the answer packet of described the first portable terminal transmission; The second source address in the described answer packet is described second network address, and the second destination address is described first network address;
Send a reply packet to described the first portable terminal, so that described gateway is given described the first portable terminal according to described first network address with described answer Packet Generation.
12. method according to claim 11 is characterized in that, described method also comprises:
Described the first portable terminal receives described answer packet, obtains described second network address.
13. according to claim 11 or the transmission method of 12 described packets, it is characterized in that described initial data packets specifically comprises described the first home address in load; Described answer packet specifically comprises described the second home address in load.
14. according to claim 11, the transmission method of 12 or 13 described packets, it is characterized in that described first network address and second network address are the IP address, described the first home address and the second home address are sign IP address.
15. the transmission method of a packet is characterized in that, described method comprises:
Gateway receives the initial data packets that the first portable terminal sends, and comprises the first home address of described the first portable terminal in the described initial data packets; And the first source address in the described initial data packets is the first network address of described the first portable terminal, and the first object address is corresponding the second home address of described the second portable terminal;
Described gateway is mapped as described the second home address the second network address of described the second portable terminal;
Described gateway sends to described the second portable terminal according to described second network address with described initial data packets, so that described the second portable terminal obtains described first network address from described initial data packets.
16. the transmission method of packet according to claim 15 is characterized in that, described method also comprises:
Described gateway receives the answer packet that described the second portable terminal sends, and comprises corresponding the second home address of described the second portable terminal in the described answer packet; The second source address in the described answer packet is described second network address, and the second destination address is described first network address;
Give described the first portable terminal according to described first network address with described answer Packet Generation, so that described the first portable terminal obtains described second network address from described answer packet.
17. the transmission method of packet according to claim 16 is characterized in that, described initial data packets specifically comprises described the first home address in load; Described answer packet specifically comprises described the second home address in load.
18. according to claim 16 or the transmission method of 17 described packets, it is characterized in that described first network address and second network address are the IP address, described the first home address and the second home address are sign IP address.
19. the transmitting device of a packet is characterized in that, described device comprises: setting unit and encapsulation unit;
Setting unit, being used for the first portable terminal setting treats to the initial data packets of the second portable terminal transmission, the first source address in the described initial data packets is corresponding the first home address of described the first portable terminal, and the first object address is corresponding the second home address of described the second portable terminal;
Encapsulation unit, be used for that described initial data packets is carried out tunnel encapsulation and obtain the first encapsulated data packet and transmission, the first packaged source address in described the first encapsulated data packet is the first network address of described the first portable terminal, the first encapsulation destination address is described the second home address, so that gateway is mapped as described the second home address the second network address of described the second portable terminal.
20. device according to claim 19 is characterized in that, described device also comprises:
Receiving element is used for described the second portable terminal and receives described the first encapsulated data packet;
Decapsulation unit is used for described the first encapsulated data packet is carried out the tunnel decapsulation, obtains described first network address.
21. device according to claim 20 is characterized in that:
Described setting unit also is used for described the second portable terminal setting and treats that the second source address in the described answer packet is described the second home address to the answer packet of described the first portable terminal transmission, and the second destination address is described the first home address;
Described encapsulation unit is used for that also described answer packet is carried out tunnel encapsulation and obtains the second encapsulated data packet and transmission, the second packaged source address in described the second encapsulated data packet is described second network address, the second encapsulation destination address is described first network address, so that described gateway sends to described the first portable terminal according to described first network address with described the second encapsulated data packet.
22. device according to claim 21 is characterized in that:
Described receiving element also is used for described the first portable terminal and receives described the second encapsulated data packet;
Described decapsulation unit also is used for described the second encapsulated data packet is carried out the tunnel decapsulation, obtains described second network address.
23. the transmitting device of arbitrary described packet according to claim 19-21, it is characterized in that, described initial data packets is the Internet protocol IP packet, and described first network address and second network address are the IP address, and described the first home address and the second home address are sign IP address.
24. the transmitting device of a packet is characterized in that, described device comprises: receiving element, map unit and transmitting element;
Receiving element, be used for gateway and receive the first encapsulated data packet that the first portable terminal sends, the first packaged source address in described the first encapsulated data packet is the first network address of described the first portable terminal, and the first encapsulation destination address is corresponding the second home address of the second portable terminal;
Map unit is used for the second network address that described gateway is mapped as described the second home address described the second portable terminal;
Transmitting element is used for described gateway and according to described second network address described the first encapsulated data packet is sent to described the second portable terminal, so that described the second portable terminal obtains described first network address with described the first encapsulated data packet decapsulation.
25. the transmitting device of packet according to claim 24 is characterized in that:
Described receiving element also is used for described gateway and receives the second encapsulated data packet that described the second portable terminal sends, the second packaged source address in described the second encapsulated data packet is the second network address of described the second portable terminal, and the second encapsulation destination address is described first network address;
Described transmitting element also is used for according to described first network address described the second encapsulated data packet being sent to described the first portable terminal, so that described the first portable terminal obtains described second network address with described the second encapsulated data packet decapsulation.
26. according to claim 24 or the transmitting device of 25 described packets, it is characterized in that described first network address and second network address are the IP address, described the first home address and the second home address are sign IP address.
27. the transmitting device of a packet is characterized in that, described device comprises setting unit and transmitting element:
Setting unit is used for the first portable terminal setting and treats to comprise the first home address of described the first portable terminal in the described initial data packets to the initial data packets of the second portable terminal transmission; And the first source address in the described initial data packets be described the first portable terminal the first network address, the first object address is corresponding the second home address of described the second portable terminal;
Transmitting element is used for sending initial data packets to described the second portable terminal, so that gateway is mapped as described the second home address in the described initial data packets second network address of described the second portable terminal.
28. the transmitting device of packet according to claim 27 is characterized in that, described device also comprises:
Receiving element is used for described the second portable terminal and receives described initial data packets;
Acquiring unit is used for obtaining described first network address from described initial data packets.
29. device according to claim 28 is characterized in that:
Described setting unit also is used for described the second portable terminal setting and treats to comprise corresponding the second home address of described the second portable terminal in the described answer packet to the answer packet of described the first portable terminal transmission; The second source address in the described answer packet is described second network address, and the second destination address is described first network address;
Described transmitting element also is used for sending a reply packet to described the first portable terminal, so that described gateway is given described the first portable terminal according to described first network address with described answer Packet Generation.
30. device according to claim 29 is characterized in that: described receiving element also is used for described the first portable terminal and receives described answer packet, obtains described second network address.
31. according to claim 29 or the transmitting device of 30 described packets, it is characterized in that described initial data packets specifically comprises described the first home address in load; Described answer packet specifically comprises described the second home address in load.
32. according to claim 29, the transmitting device of 30 or 31 described packets, it is characterized in that described first network address and second network address are the IP address, described the first home address and the second home address are sign IP address.
33. the transmitting device of a packet is characterized in that, described device comprises: receiving element, map unit and transmitting element;
Receiving element is used for gateway and receives the initial data packets that the first portable terminal sends, and comprises the first home address of described the first portable terminal in the described initial data packets; And the first source address in the described initial data packets is the first network address of described the first portable terminal, and the first object address is corresponding the second home address of described the second portable terminal;
Map unit is used for the second network address that described gateway is mapped as described the second home address described the second portable terminal;
Transmitting element is used for described gateway and according to described second network address described initial data packets is sent to described the second portable terminal, so that described the second portable terminal obtains described first network address from described initial data packets.
34. the transmitting device of packet according to claim 19 is characterized in that:
Described receiving element also is used for described gateway and receives the answer packet that described the second portable terminal sends, and comprises corresponding the second home address of described the second portable terminal in the described answer packet; The second source address in the described answer packet is described second network address, and the second destination address is described first network address;
Described transmitting element is also for giving described the first portable terminal according to described first network address with described answer Packet Generation, so that described the first portable terminal obtains described second network address from described answer packet.
35. the transmitting device of packet according to claim 20 is characterized in that, described initial data packets specifically comprises described the first home address in load; Described answer packet specifically comprises described the second home address in load.
36. according to claim 20 or the transmitting device of 21 described packets, it is characterized in that described first network address and second network address are the IP address, described the first home address and the second home address are sign IP address.
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| CN201210444003.5A CN102932467B (en) | 2012-11-08 | 2012-11-08 | The transmission method of packet and device |
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| CN201210444003.5A CN102932467B (en) | 2012-11-08 | 2012-11-08 | The transmission method of packet and device |
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| US20110153937A1 (en) * | 2009-12-23 | 2011-06-23 | Saravanakumar Annamalaisami | Systems and methods for maintaining transparent end to end cache redirection |
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Effective date of registration: 20211223 Address after: 450046 Floor 9, building 1, Zhengshang Boya Plaza, Longzihu wisdom Island, Zhengdong New Area, Zhengzhou City, Henan Province Patentee after: Super fusion Digital Technology Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |