CN101754318A - Bypass data transmission method and system, and access point network device - Google Patents

Bypass data transmission method and system, and access point network device Download PDF

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CN101754318A
CN101754318A CN200910252516A CN200910252516A CN101754318A CN 101754318 A CN101754318 A CN 101754318A CN 200910252516 A CN200910252516 A CN 200910252516A CN 200910252516 A CN200910252516 A CN 200910252516A CN 101754318 A CN101754318 A CN 101754318A
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target device
address
target
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source
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CN101754318B (en
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曹文利
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Abstract

The embodiment of the invention provides a bypass data transmission method and system, and an access point network device. The bypass data transmission method comprises the following steps: receiving an inquiry request which is sent by the source device and comprises a target device identification; inquiring the target access point network device AP of the target device according to the target device identification; acquiring the routing address of the target device from the target AP; and returning the routing address of the target device to the source device, so that the source device transmits data messages to the target device by using the routing address as the destination address. In the embodiment of the invention, the source device can realize correspondence with the target device according to the routing address of the target device, thereby realizing the active visit between the source devices, such as IP devices, other UE and the like, and the target device, and realizing transmission of the bypass data.

Description

A kind of transmission method of bypass data, system and access point network device
Technical field
The present invention relates to the mobile communication technology field, relate in particular to a kind of transmission method, system and access point network device of bypass data.
Background technology
AP (Access Point, access point) is based on fixedly IP transmission network, and the network equipment of wireless access service is provided for home/business.As shown in Figure 1, common UE (User Equipment, subscriber equipment) inserts AP by eating dishes without rice or wine, AP is by HGW (Home Gateway, home gateway) inserts IP transmission network (the possible integrated HGW of AP), the SeGW (Security Gateway, security gateway) that is connected in the mobile core network by the IP transmission network is connected to AG (Access Gateway, IAD) (AG possibility integrated security gateway SeGW) then.AG is connected to CS territory (Circuit Switched domain, circuit domain) core net and PS territory (Packet Switched domain, packet domain) core net.
According to networking shown in Figure 1, when UE visits Internet by AP, the interface (reference point between GPRS and external packet data network) that will pass through GGSN (Gateway GPRS Support Node, the Gateway GPRS Support Node) network element of PS domain core net is connected with Internet.At this moment the data flow of UE visit Internet all will be passed through mobile core network, and this has caused the load increasing and the bandwidth waste problem of mobile core network undoubtedly.
In order to address the above problem, operator proposes the thought of data bypass at present, promptly for the exchanges data in the local network, UE exchanges and carries out in the local network professionally by carrying out local data in AP and the local network between the IP device (as PC), reduces the data traffic of core net with this.
Realize the bypass data transmission in the prior art by the following method, as shown in Figure 1, at first, when UE initiatively visits equipment in the network that AP connects (subscriber's local network, Internet) by local AP, AP is according to the message distributing strategy, as the purpose IP address of message etc., distinguish the PS numeric field data stream of visit core net and the PS numeric field data stream of bypass, ((AP->AG->SGSN->GGSN) is transmitted to the GGSN in the core net by normal route for the data flow of visiting core net.Flow for bypass data, AP (also is PDP (the Packet Data Protocol of UE with the source IP address of UE message, packet data protocol) address) and the transport layer source port be converted to routable public network address (the IP address of AP network side interface) and port, then message is sent to destination device according to purpose IP address.AP creates a NAPT (Network Address and Port Translation simultaneously, the network address port conversion) mapping, this mapping mainly comprises: source address and source port, public network source address and source port after the conversion, and public network destination address and port.Can change according to this NAPT mapping carrying out address port by AP from the message that public network returns, and be routed to UE with corresponding pdp address.
But, because the technical characteristic of NAPT makes the NAPT mapping only just can create when UE mails to AP and connects network in network packet, therefore, the inventor finds in realizing process of the present invention, when adopting the NAPT technology to realize the bypass data transmission, connect in the network at AP, can only initiatively transmit data by UE to other network equipment, after AP sets up the NAPT mapping, other network equipment could be to UE return data bag, also promptly before not setting up NAPT mapping, other network equipment can not be initiatively to UE transmission data.
Summary of the invention
Inventive embodiments provides a kind of transmission method, system and access point network device of bypass data, can realize that the active between the network equipment is exchanged visits.
In order to solve above-mentioned technical characterictic, the technical scheme that the embodiment of the invention provides is as follows:
A kind of transmission method of bypass data comprises:
The query requests that comprises the target device sign that reception sources equipment sends;
According to the target access network equipment AP under the described target device sign query aim equipment;
From described target AP, obtain the routing address of described target device;
The routing address of described target device is returned described source device so that described source device with described routing address as destination address to described target device data message transmission.
A kind of access point network device comprises:
Receiving element is used for the query requests that comprises the target device sign that reception sources equipment sends;
Query unit is used for according to the target AP under the described target device sign query aim equipment;
Acquiring unit is used for obtaining from described target AP the routing address of described target device;
Transmitting element is used for the routing address of described target device is returned described source device so that described source device with described routing address as destination address to described target device data message transmission.
A kind of transmission system of bypass data comprises source device, target device, source AP and target AP,
Described source AP is used to receive the query requests that comprises the target device sign that described source device sends; According to the target AP under the described target device sign query aim equipment; From described target AP, obtain the routing address of described target device; The routing address of described target device is returned described source device;
Described source device is used for described routing address as destination address to described target device data message transmission.
In the present embodiment, when source device (as IP device or other UE) when target device (as another UE) initiates that initiatively visit sends datagram, the routing address that obtains target device by source AP query aim AP returns to source device then, make source device realize communicating by letter with target device according to the routing address of target device, thereby realized the active visit between source device such as IP device or other UE and the target device, also realized the transmission of bypass data.
Description of drawings
Fig. 1 is the networking schematic diagram that UE visits Internet in the prior art by AP;
Fig. 2 is the transmission method flow chart of a kind of bypass data of the embodiment of the invention;
Fig. 3 is a kind of method sequential chart of realizing the bypass data transmission of embodiment one;
Fig. 4 is a kind of method sequential chart of realizing the bypass data transmission of embodiment two;
Fig. 5 is a kind of method sequential chart of realizing the bypass data transmission of embodiment three;
Fig. 6 is a kind of structural representation of access point network device;
Fig. 7 is the structural representation of 41 kinds of access point network devices of embodiment;
Fig. 8 is the structural representation of embodiment kind on May Day access point network device;
Fig. 9 is the transmission system structural representation of a kind of bypass data of the embodiment of the invention.
Embodiment
In order to make those skilled in the art can further understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, accompanying drawing only provide with reference to and explanation, be not to be used for limiting the present invention.
Below in conjunction with drawings and Examples, technical scheme of the present invention is described.
With reference to Fig. 2, be the transmission method flow chart of a kind of bypass data of the embodiment of the invention.
This method can comprise:
Step 101, the query requests that comprises the target device sign that reception sources equipment sends.
IP device in source device such as the enterprise network or other UE etc. are at first to enterprise network DNS (DomainName System, domain name system) sends query requests, enterprise network DNS is forwarded to this query requests the source AP that has started DNS Proxy (domain name system acting server), if source AP does not have DNS Proxy function, then enterprise network DNS directly is forwarded to query requests DNS Proxy, perhaps source device can directly send query requests to affiliated source AP, can comprise source device in the query requests that source AP or DNS Proxy receive and want to set up the sign of the target device of communication, the purpose of this query requests is the target AP that will know that this target device is affiliated, so that the follow-up routing address that obtains target device by this target AP.
Step 102 is according to the target AP under the described target device sign query aim equipment.
After source AP receives query requests, according to the sign of the target device that comprises in the request such as host name, domain name etc. directly at local search or to AG or HMS (Home NodeB Management System, the Home eNodeB management system) sends query statement, come target AP under the query aim equipment by AG or HMS.Concrete process please refer to the description of subsequent embodiment.If inquire the step 103 that changes over to of target AP,, finish visit if inquiry fall short AP then can return the information that inquiry is failed to source device.
Step 103 is obtained the routing address of described target device from described target AP.
Source AP or AG or HMS inquire the routing address that obtains target device after the target AP to target AP, target AP through AG or HMS or directly return the routing address of target device such as pdp address or LAN IP address to source AP or DNS Proxy.Wherein, the pdp address of target device or LAN IP address are that target AP is that target device obtains, this acquisition process can be to carry out when target AP receives the request of query aim equipment routing address, also can finish before receiving request, concrete acquisition process sees also subsequent embodiment.
Step 104 returns the routing address of described target device to source device so that source device with described routing address as destination address to described target device data message transmission.
Source AP returns the pdp address of the target device that obtains or LAN IP address etc. to source device, and source device sends its destination address as data message.
In the present embodiment, when source devices such as IP device or other UE are initiated initiatively visit to destination devices such as another UE, when promptly sending datagram, the routing address that obtains target device by source AP query aim AP returns to source device then, make source device realize communicating by letter with target device according to the routing address of target device, thereby realized the active visit between source device such as IP device or other UE and the target device, also realized the transmission of bypass data.
Below respectively different source devices are realized that with target device initiatively the process of visit is described in detail under different situations by specific embodiment.
With reference to Fig. 3, be a kind of method sequential chart of realizing the bypass data transmission of embodiment one.
Present embodiment one is primarily aimed between interior IP device of enterprise network and the object UE and realizes initiatively visit, thereby realizes the method that bypass data transmits, and this method can comprise:
Step 201, the query requests that comprises the object UE sign that source AP startup DNS Proxy and reception sources IP device are transmitted by the DNS of enterprise domain name system.
The query requests of IP device target AP under the DNS of enterprise sends query aim UE, the DNS of enterprise judges the domain name of domain name for transmitting that will resolve, then transmitting this DNS inquires about to the source AP that starts DNS Proxy, this IP device may be positioned at the coverage of this source AP, includes the domain name of object UE in this query requests.If source AP does not have DNS Proxy function, then the DNS of enterprise just is forwarded to DNS Proxy with this DNS inquiry, finishes the AP follow-up action of finishing in source in the present embodiment by DNS Proxy.Present embodiment describes with the source AP with DNS Proxy function.
The domain name of UE can generate according to following mode: with the identification information of UE (for example: MSISDN (Mobile Station International Integrated Services Digital Network Number, the international comprehensive service digital net number of travelling carriage) (perhaps phone number) is mapped as domain name, for example: the domain name of UE is generated according to phone number (MSISDN) automatically by AP, and the mapping of UE domain name and phone number is as follows:
Phone number is generated domain name as the part of domain name: for example: phone number .domain
The domain here is the domain name that the Gi function is used, for example: .Gi.
Step 202, source AP according to the sign of object UE by the target AP under AG or the HMS query aim UE.
After the source AP of startup DNS Proxy receives the DNS inquiry, ask query aim UE under which AP to AG or HMS.
The target AP at AG or HMS inquiry UE place.If the inquiry failure, then AG or HMS notice starts the AP inquiry failure of DNS Proxy, and further to enterprise's dns server and the failure of IP device feedback query.AG or HMS change step 203 over to after inquiring the purpose AP at UE place.
Step 203, source AP obtains the LAN IP address of object UE from target AP.
In this step, after AG or HMS inquire the target AP at UE place, send the request of query aim UE routing address to target AP, target AP is according to sign (domain name) the inquiry local record of object UE, obtain the LAN IP address of object UE, return to AG or HMS then, return to source AP again by AG or HMS.If target AP inquiry local record is found not obtain LAN IP address for object UE as yet, then earlier obtain LAN IP address for object UE, again the address is returned.Wherein, target AP by DHCP be object UE obtain the process of LAN IP address can be referring to following steps step1~step6:
Step1, target AP sends DHCP (Dynamic Host ConfigurationProtocol, DHCP) to Dynamic Host Configuration Protocol server and finds message, can comprise the DHCP fqdn option in the message, wherein comprises the domain name of UE.
Step2, Dynamic Host Configuration Protocol server is responded DHCP to AP and is given information.
Step3, target AP sends the DHCP request message to Dynamic Host Configuration Protocol server, can comprise the DHCP fqdn option in the message.
Step4, Dynamic Host Configuration Protocol server is responded the DHCP acknowledge message to AP.
Step5, Dynamic Host Configuration Protocol server is initiated the DNS renewal process to dns server, and the domain name of UE is updated in the dns server.This step is optional.Optionally, target AP is initiatively initiated the DNS renewal process to dns server.
Step6, target AP is set up the NAT mapping.
This NAT mapping is only the IP address of message to be changed.
Step 204, source AP returns the LAN IP address of described object UE to the source IP device.
Source AP returns LAN IP address to the DNS of enterprise, and then is back to the source IP device by the DNS of enterprise.
Step 205, the source IP device sends datagram to target AP as destination address with described LAN IP address.
Target AP can be the PS territory flow of visit core net according to this data message of judgements such as destination address of data message, or bypass flow, if the then directly forwarding of the PS territory flow of core net, if bypass flow then changes step 206 over to.
Step 206, target AP be according to the NAT mapping of setting up, and is the pdp address of object UE with the LANIP address transition of object UE in the data message, and data message is transferred to object UE.
In this step, target AP obtains the process of the pdp address of object UE can be as step7~step11:
Step7, when UE had business to initiate, the AP under UE sent and activates the PDP Context request message.
Step8, AP will activate the PDP Context forwards and give network side.
After Step9, SGSN (Serving GPRS Support Node, Serving GPRS Support Node) receive and activate the PDP Context request message, initiate to create the PDP Context request message to GGSN.
Step10, GGSN are that UE distributes pdp address, and GGSN returns to SGSN and creates the PDP Context response message then, and are returned as the pdp address that UE distributes.Optionally, SGSN triggers the RAB process of setting up.
Step11, SGSN sends the activation PDP Context to UE and accepts message.
The process that above UE obtains pdp address is a prior art, repeats no more herein.
In the above-mentioned steps, target AP is that the process that UE obtains LAN IP address can be carried out in following process: target AP is in pdp context activation, when AP receives activation PDP Context request message, also can receive when activating PDP Context and accepting message at AP, also can be after AP receive data message, can also be after the AP start.
Present embodiment is that object UE obtains LAN IP address in advance by target AP, set up the NAT mapping, make IP device inquire about and obtain the LAN IP address of object UE, target AP is shone upon data message forwarding to UE according to NAT again, realized the process that IP device is initiatively visited UE, also realized the transmission of IP device to the bypass data of UE.
Return the data message of IP device for UE, target AP after the NAT mapping is converted to LAN IP address by pdp address, is sent to the source address of message IP device and gets final product.
With reference to Fig. 4, be a kind of method sequential chart of realizing the bypass data transmission of embodiment two.
Present embodiment two is primarily aimed at the mutual active visit between two UE that belong to different AP, thereby realizes the method for bypass data transmission, and this method can comprise:
Step 301, the query requests that comprises the object UE sign that source AP reception sources UE sends.
The sign of this object UE also can be the domain name of object UE.
Step 302, source AP resolves described query requests, and whether the domain name that judgement will be resolved is the professional domain name of using of internet interface.
Wherein, the internet interface business can be GI (GPRS Internet interface, a GPRS internet interface) business etc.
Step 303, if, then according to the sign of object UE by the target AP under AG or the HMS query aim UE.
Step 304, source AP obtains the LAN IP address of object UE from target AP.
Step 305, source AP returns the LAN IP address of described object UE to the source IP device.
Step 306, the source IP device sends datagram to target AP as destination address with described LAN IP address.
Step 307, target AP be according to the NAT mapping of setting up in advance, is the pdp address of object UE with the LAN IP address transition of object UE in the data message, and data message is transferred to object UE.
Above-mentioned steps 303~307 is similar with previous embodiment, repeats no more herein.
In the present embodiment, between different AP two UE down, by source UE inquiry and obtained the LAN IP address of object UE, target AP is shone upon data message forwarding to object UE according to NAT again, realize the initiatively process of access destination UE of source UE, also realized the transmission of bypass data between two UE.
Present embodiment also can be used the situation that belongs to same AP with source UE and object UE, just in step 303 according to the sign of object UE during by the target AP under AG or the HMS query aim UE, the target AP that inquires is source AP, source AP inquires about the LAN IP address that obtains object UE and gets final product in the step 304 in this locality then, after just obtaining the LAN IP address of object UE, still can this address be back to source AP by AG or HMS, and then be back to source UE, source UE still can send datagram to target AP to object UE as destination address with this LAN IP address, also be source AP, source AP is again according to the NAT mapping of setting up in advance, with the LAN IP address transition of object UE in the data message is the pdp address of object UE, and data message is transferred to object UE.
As seen, belong to the situation of an AP in the said process for source UE and object UE, though can realize that according to above-mentioned flow process the active between two UE exchanges visits, realize the transmission of bypass data, but, still there is the unnecessary data flow transmission in the whole process,, illustrates that below by specific embodiment two UE belong to a bypass data transmission method under the AP situation in order to address this problem.
With reference to Fig. 5, be a kind of method sequential chart of realizing the bypass data transmission of embodiment three.
This method can comprise:
Step 401, the query requests that comprises the object UE sign that source AP reception sources UE sends.
Step 402, whether UE belongs to local AP according to object UE sign query aim.
Step 403 is if obtain the pdp address of object UE from local AP.
The procurement process of the pdp address of this object UE sees also previous embodiment, repeats no more herein.If inquiry failure in the step 402, then Query Result is returned source UE, if query structure is not that to belong to local AP also be source AP for source UE, then source AP identifies by the target AP under AG or the HMS query aim UE according to object UE, should be similar by the process and the previous embodiment of AG or HMS inquiry, repeat no more herein.
Step 404, source AP returns the pdp address of object UE to source UE.
Step 405, source UE sends datagram to source AP as destination address with described pdp address.
Step 406, source AP transfers to object UE with data message.
Source AP can know directly that this data flow is a bypass flow after receiving the data message that destination address is a pdp address, and need not to carry out address transition through NAT mapping, can directly data message be forwarded to corresponding target UE according to pdp address.
In the present embodiment, between two UE under the same AP, whether UE belongs to local AP by the AP query aim, if, then direct pdp address with object UE returns source UE, can directly realize between source UE and the object UE target AP initiatively exchanging visits, also realized the transmission of bypass data between two UE simultaneously, save data flow transmission process unnecessary in the previous embodiment.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in the computer read/write memory medium, this program may further comprise the steps when carrying out:
The query requests that comprises the target device sign that reception sources equipment sends;
According to the target access network equipment AP under the described target device sign query aim equipment;
From described target AP, obtain the routing address of described target device;
The routing address of described target device is returned source device so that source device with described routing address as destination address to described target device data message transmission.
Described storage medium, as: ROM/RAM, magnetic disc, CD etc.
More than be introduction, related device, the system that realizes the bypass data transmission be introduced below by specific embodiment to the bypass data transmission method.
With reference to Fig. 6, be a kind of structural representation of access point network device.
This access point network device AP can comprise receiving element 501, query unit 502, acquiring unit 503 and transmitting element 504.
Receiving element 501 is used for the query requests that comprises the target device sign that reception sources equipment sends.
Query unit 502 is used for according to the target AP under the described target device sign query aim equipment.
Acquiring unit 503 is used for obtaining from described target AP the routing address of described target device.
Transmitting element 504 is used for the routing address of described target device is returned source device so that source device with described routing address as destination address to described target device data message transmission.
After the receiving element 501 of source AP receives the query requests of the source device that the DNS of enterprise transmits or receives the query requests that source device directly sends, signs such as domain name according to target device in this query requests, by the target AP under the query unit 502 query aim equipment, this inquiry can be that local search also can be to inquire about by AG or HMS, inquire the routing address that further obtains target device after the target AP again by acquiring unit 503, this routing address can be to inquire about the LAN IP address that obtains by the pdp address of local search acquisition or by target AP, after acquiring unit 503 obtains routing address, directly send to source device or be transmitted to source device by transmitting element 504 by the DNS of enterprise, source device sends datagram the destination address of this routing address as data message to target device.
In the present embodiment, this source AP has realized the active visit of source device to target device by above-mentioned each unit, has also realized the transmission of bypass data simultaneously.
In another embodiment of the present invention, the receiving element 501 among the AP specifically is used to start DNSProxy and receives the query requests that comprises the target device sign that described source device is transmitted by the DNS of enterprise.Query unit 502 comprises other places inquiry subelement, is used for according to described target device sign by the target AP under AG or the HMS query aim equipment.Acquiring unit 503, when being used for the target AP under other places inquiry subelement inquires target device, the LANIP address that from described target AP, obtains described target device.Transmitting element 504 is used for this LAN IP address is sent to source device.
In the present embodiment, after receiving element 501 receives the query requests that comprises the target device sign of the DNS of enterprise forwarding, by query unit 502 to AG or the request of HMS forwarding inquiries, inquire about the affiliated target AP of acquisition by AG or HMS according to the target device sign, after getting access to target AP and be the LAN IP address that target device obtains, acquiring unit 503 by source AP receives this address, and be sent to source device by transmitting element 504 so that source device with described routing address as destination address to described target device data message transmission.
This source AP has realized that by above-mentioned each unit the active between the IP device and object UE is exchanged visits in the enterprise network, and has realized the transmission of bypass data simultaneously.
With reference to Fig. 7, be the structural representation of 41 kinds of access point network devices of embodiment.
In the present embodiment, except comprising receiving element 601, query unit 602, acquiring unit 603 and transmitting element 604, can also comprise resolution unit 605 among the AP.
Wherein, receiving element 601 is directly used in the query requests of reception sources equipment.
Resolution unit 605, be used to resolve described query requests, whether the domain name that judgement will be resolved is the domain name that internet interface business (for example GI business) is used, if, then by described query unit 602 according to the target AP under the inquiry of the domain name target device of described target device.Query unit 602, acquiring unit 603 and transmitting element 604 are similar with previous embodiment, repeat no more herein.
In the present embodiment, AP has realized that by above-mentioned each unit the active between the different UEs exchanges visits, and has realized the transmission of bypass data simultaneously, and these two different UE can belong to same AP and also can belong to different AP.
With reference to Fig. 8, be the structural representation of embodiment kind on May Day access point network device.
In the present embodiment, AP also can comprise receiving element 701, query unit 702, acquiring unit 703 and transmitting element 704.
Wherein, receiving element 701 and transmitting element 704 are similar with previous embodiment, repeat no more herein.Query unit 702 can also comprise local search subelement 7021 and other places inquiry subelement 7022.
Local search subelement 7021, be used for before 7022 inquiries of other places inquiry subelement, whether belong to local AP according to the described target device of described target device sign inquiry, if, then local AP is described target AP, if not, then by the target AP under the described other places inquiry subelement 7022 query aim equipment.
Inquiry subelement 7022 in other places is used for inquiring described target device when not belonging to local AP when described local search subelement 7021, passes through target AP under AG or the HMS query aim equipment according to described target device sign.
Acquiring unit 703 is used for inquiring described target device when belonging to local AP when local search subelement 7021, obtains the pdp address of described target device from described local AP; During target AP under described other places inquiry subelement 7022 inquires target device, the LAN IP address that from described target AP, obtains described target device.
In the present embodiment, AP is after receiving element 701 receives query requests, inquire about at local AP earlier by local search subelement 7021, if target device belongs to local AP, then directly obtain the pdp address of target device by acquiring unit 703, and be back to source device by transmitting element 704, send datagram to target device according to this pdp address by source device.If being target devices, the Query Result of local search subelement 7021 do not belong to local AP, then by the target AP under the other places inquiry subelement 7022 query aim equipment, and the LAN IP address that obtains target device by acquiring unit 703, return this address to source device by transmitting element 704 then, send datagram to target device according to this LAN IP address by source device.
Whether AP belongs to local AP at the local search destination device earlier by local search subelement 7021 in the present embodiment, if, then can be directly the pdp address of destination device be sent to source device, realize that according to this address active visit and bypass data between source device and the destination device transmit, and have saved the transmission of other redundant data stream.
With reference to Fig. 9, be the transmission system structural representation of a kind of bypass data of the embodiment of the invention.
This system can comprise source device 801, target device 802, source AP803 and target AP 804.
Source AP803 is used to receive the query requests that comprises the target device sign; According to the target AP 804 under the described target device sign query aim equipment; From described target AP 804, obtain the routing address of described target device; The routing address of described target device 802 is returned described source device 801.
Source device 801 is used for described routing address as destination address to described target device 802 data message transmissions.
Source AP803 receives query aim AP804 after the query requests that source device 801 sends, and obtains the routing address of target device 802 then and returns to source device 801, and source device 801 can be realized active visit to target device 802 according to this address.
This system has realized the active visit of 801 pairs of target devices 802 of source device, has also realized the transmission of bypass data simultaneously.
In this another embodiment of the present invention, the target AP 804 of this system also is used to receive the data message that described source device 801 sends, if the routing address of target device is a pdp address in the described data message, then with described data message forwarding to described target device; If the routing address of target device is LAN IP address in the described data message, then according to the NAT mapping of setting up in advance, with the LAN IP address transition of target device in the described data message is the pdp address of described target device, and data message is transferred to described target device.This system has realized the active visit of 801 pairs of target devices 802 of source device, has also realized the transmission of bypass data simultaneously.
The specific implementation process of each unit sees also the corresponding description among the preceding method embodiment in said apparatus, the system embodiment, repeats no more herein.
Above-described embodiment of the present invention does not constitute the qualification to protection range of the present invention.Any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection range of the present invention.

Claims (14)

1. the transmission method of a bypass data is characterized in that, comprising:
The query requests that comprises the target device sign that reception sources equipment sends;
According to the target access network equipment AP under the described target device sign query aim equipment;
From described target AP, obtain the routing address of described target device;
The routing address of described target device is returned described source device so that described source device with described routing address as destination address to described target device data message transmission.
2. method according to claim 1 is characterized in that, describedly comprises according to the target AP under the described target device sign query aim equipment:
Identify by the target AP under access gateway AG or the Home eNodeB management system HMS query aim equipment according to described target device;
The described routing address that obtains described target device from described target AP is specially:
From described target AP, obtain the LAN IP address of described target device.
3. method according to claim 2 is characterized in that, described according to described target device sign by the target AP under access gateway AG or the Home eNodeB management system HMS query aim equipment before, also comprise:
Whether belong to local AP according to the described target device of described target device sign inquiry;
If not, then identify by the target AP under AG or the HMS query aim equipment according to described target device;
If then local AP is described target AP, the described routing address that obtains described target device from described target AP is specially, and obtains the packet data protocol pdp address of described target device from described local AP.
4. method according to claim 2 is characterized in that, described source device with described routing address as destination address to described target device data message transmission, comprising:
Described source device sends datagram the LAN IP address of described target device to target AP as the destination address in the data message;
Target AP is shone upon according to the network address translation NAT that sets up in advance for described target device, is the pdp address of described target device with the LAN IP address transition of target device described in the described data message, and data message is transferred to described target device.
5. method according to claim 1 is characterized in that, the query requests that comprises the target device sign that described reception sources equipment sends is specially:
Source AP starts domain name system acting server DNS Proxy and receives the query requests that comprises the target device sign that described source device is transmitted by domain name system DNS; Perhaps,
DNS Proxy receives the query requests that comprises the target device sign that described source device is transmitted by domain name system DNS.
6. according to any described method in the claim 1 to 5, it is characterized in that described target device sign comprises the domain name of target device.
7. method according to claim 6 is characterized in that, and is described according to before the target AP under the described target device sign query aim equipment, also comprises:
Resolve described query requests, whether the domain name that judgement will be resolved is the professional domain name of using of internet interface, if, then according to the target AP under the inquiry of the domain name target device of described target device.
8. an access point network device is characterized in that, comprising:
Receiving element is used for the query requests that comprises the target device sign that reception sources equipment sends;
Query unit is used for according to the target AP under the described target device sign query aim equipment;
Acquiring unit is used for obtaining from described target AP the routing address of described target device;
Transmitting element is used for the routing address of described target device is returned described source device so that described source device with described routing address as destination address to described target device data message transmission.
9. equipment according to claim 8 is characterized in that, described query unit comprises other places inquiry subelement,
Described other places inquiry subelement is used for according to described target device sign by the target AP under AG or the HMS query aim equipment;
Described acquiring unit, when being used for the target AP under described other places inquiry subelement inquires target device, the LAN IP address that from described target AP, obtains described target device.
10. equipment according to claim 9 is characterized in that, described query unit also comprises:
The local search subelement, be used for before the inquiry of described other places inquiry subelement, whether belong to local AP according to the described target device of described target device sign inquiry, if, then local AP is described target AP, if not, then identify by the target AP under AG or the HMS query aim equipment according to described target device by described other places inquiry subelement;
Described acquiring unit also is used for inquiring described target device when belonging to local AP when described local search subelement, obtains the pdp address of described target device from described local AP.
11. equipment according to claim 8 is characterized in that,
Described receiving element specifically is used to start DNS Proxy and receives the query requests that comprises the target device sign that described source device is transmitted by DNS.
12. any described equipment in 11 is characterized in that according to Claim 8, described target device sign comprises the domain name of target device;
Described equipment also comprises:
Resolution unit is used to resolve described query requests, and whether the domain name that judgement will be resolved is the professional domain name of using of internet interface, if, then by described query unit according to the target AP under the inquiry of the domain name target device of described target device.
13. the transmission system of a bypass data is characterized in that, comprises source device, target device, source AP and target AP,
Described source AP is used to receive the query requests that comprises the target device sign that described source device sends; According to the target AP under the described target device sign query aim equipment; From described target AP, obtain the routing address of described target device; The routing address of described target device is returned described source device;
Described source device is used for described routing address as destination address to described target device data message transmission.
14. system according to claim 13 is characterized in that,
Described target AP is used to receive the data message that described source device sends, if the routing address of target device is a pdp address in the described data message, then with described data message forwarding to described target device; If the routing address of target device is LAN IP address in the described data message, then according to the NAT mapping of setting up in advance, with the LAN IP address transition of target device in the described data message is the pdp address of described target device, and data message is transferred to described target device.
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