CN102014039A - Data transmission method and access point - Google Patents
Data transmission method and access point Download PDFInfo
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- CN102014039A CN102014039A CN2009101619408A CN200910161940A CN102014039A CN 102014039 A CN102014039 A CN 102014039A CN 2009101619408 A CN2009101619408 A CN 2009101619408A CN 200910161940 A CN200910161940 A CN 200910161940A CN 102014039 A CN102014039 A CN 102014039A
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Abstract
The invention discloses data transmission method and device, relating to the field of communication and aiming at solving the problem that UE (User Equipment) resident in FemtoCell cannot carry out local communication with the internet or a local network. In the technical scheme provided by the embodiment of the invention, the method comprises the steps of: receiving an IP (Internet Protocol) message sent by the UE; searching a flow forwarding table corresponding to the IP message in a preset flow forwarding table; and when a flow forwarding table corresponding to the IP message exists, directly sending the IP message to the internet or the local network through a UE through-connection port bound to the flow forwarding table. The embodiment of the invention can be applied under a FemtoCeU access mode.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of data transmission method and access point.
Background technology
In the prior art, (UserEquipment UE) need communicate by core net and internet (Internet) or operator's local network to reside in the subscriber equipment of Pico cell network (FemtoCell).As shown in Figure 1, UE is by access point (Access Point, AP) behind the access FemtoCell, by (the Home Gateway of the home gateway among the FemtoCell, HGW) be connected to core net, and by the Serving GPRS Support Node in the core net (Serving GPRS Supporting Node, SGSN) and Gateway GPRS Support Node (Gateway GPRS Supporting Node, GGSN) and Internet or operator's local network communicate.
In the prior art, reside in and to carry out this locality between UE and Internet or the operator's local network among the FemtoCell and communicate by letter, thereby cause FemtoCell limited for the value-added service kind that the user provides, can't satisfy the growing demand for services of user, make the user use the experience of FemtoCell relatively poor.
Summary of the invention
The embodiment of the invention provides a kind of data transmission method and access point, can make to reside in Pico cell user device in network and internet or local network and communicate by this locality exchange.
The embodiment of the invention provides a kind of data transmission method, is applied in the Pico cell network, comprising: receive the procotol IP message that subscriber equipment sends; From the flow that sets in advance is transmitted, search with described IP message corresponding flow and transmit; When existing when transmitting, described IP message is directly sent to internet or local network by the subscriber equipment transit ports of transmitting binding with described flow with described IP message corresponding flow.
The embodiment of the invention provides a kind of access point, comprising:
Receiving element is used to receive the IP message that subscriber equipment sends;
First searches the unit, is used for transmitting from the flow that sets in advance searching the IP message corresponding flow that receives with described receiving element and transmitting;
Transmitting element, be used for searching the unit and finding the IP message corresponding flow that receives with described receiving element when transmitting when described first, by with described first search flow that the unit finds and transmit the subscriber equipment transit ports of binding the IP message that described receiving element receives is directly sent to internet or local network.
Data transmission method that the embodiment of the invention provides and access point, can search corresponding flow according to the IP message that subscriber equipment sends transmits, and described IP message is directly sent in internet or the local network by the subscriber equipment transit ports of transmitting binding with flow, reached to make and resided in the purpose that Pico cell user device in network and internet or local network communicate by this locality exchange, having solved prior art can't make and reside in the Pico cell user device in network and carry out local problem of communicating by letter with internet or local network, because the technical scheme that provides of the embodiment of the invention can make and reside in the Pico cell user device in network and carry out this locality with internet or local network and communicate by letter, make the user to obtain more value-added service, thereby improved the experience that the user uses the Pico cell network by the Pico cell network.
The embodiment of the invention provides also a kind of data transmission method and access point, can make to reside in Pico cell user device in network and internet or local network and communicate by this locality exchange.
A kind of data transmission method that the embodiment of the invention provides is applied in the Pico cell network, comprising: from the internet or local network directly receive the IP message; From the flow that sets in advance is transmitted, search with described IP message corresponding flow and transmit; When existing when transmitting, transmit according to described flow described IP message is sent to subscriber equipment with described IP message corresponding flow.
A kind of access point that the embodiment of the invention provides comprises:
Receiving element is used for from the internet or local network directly receives the IP datagram literary composition;
Search the unit, be used for transmitting and search the IP message corresponding flow that receives with described receiving element and transmit from the flow that sets in advance;
Transmitting element is used for finding the IP message corresponding flow that receives with described receiving element when transmitting when the described unit of searching, and searches flow that the unit finds and transmits described IP message is sent to subscriber equipment according to described.
Data transmission method that the embodiment of the invention provides and access point, can be from the internet or local network directly receive the IP message, and transmit according to this IP message corresponding flow this IP message is sent to subscriber equipment, reached to make and resided in the purpose that Pico cell user device in network and internet or local network communicate by this locality exchange, having solved prior art can't make and reside in the Pico cell user device in network and carry out local problem of communicating by letter with internet or local network, because the technical scheme that provides of the embodiment of the invention can make and reside in the Pico cell user device in network and carry out this locality with internet or local network and communicate by letter, make the user to obtain more value-added service, thereby improved the experience that the user uses the Pico cell network by the Pico cell network.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Family's connecting system configuration diagram that Fig. 1 provides for prior art;
The data transmission method flow chart that Fig. 2 provides for the embodiment of the invention;
The data transmission method flow chart that Fig. 3 provides for another embodiment of the present invention;
The data transmission method sequential chart that Fig. 4 provides for further embodiment of this invention;
Fig. 5 is the flow chart of step 409 among Fig. 4;
Fig. 6 is the flow chart of step 411 among Fig. 4;
The access point structures schematic diagram one that Fig. 7 provides for the embodiment of the invention;
Fig. 8 searches the cellular construction schematic diagram for shown in Figure 7 first;
Fig. 9 is a transmitting element structural representation shown in Figure 7;
The access point structures schematic diagram two that Figure 10 provides for the embodiment of the invention;
The access point structures schematic diagram one that Figure 11 provides for another embodiment of the present invention;
Figure 12 is a transmitting element structural representation shown in Figure 11;
The access point structures schematic diagram two that Figure 13 provides for another embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Can't make the UE that resides among the FemtoCell carry out local problem of communicating by letter with internet or local network in order to solve, the embodiment of the invention provides a kind of data transmission method and access point.
As shown in Figure 2, the data transmission method that the embodiment of the invention provides is applied in the Pico cell network, comprising:
Wherein, flow is transmitted and can be comprised: the IP address of UE and port, UE IP address and port and communication protocol type to be visited, further, user's face general packet radio service tunnel agreement (GPRS Tunnelling Protocol for user plane that can also comprise UE, GTP-U) the uplink tunnel Endpoint ID in tunnel (Tunnel Endpoint Identifier, TEID) and information such as descending TEID.
In the present embodiment, when UE for the first time when internet or local network send upstream data, AP can be that this UE distributes a subscriber equipment transit ports, and sets up a flow of binding with this subscriber equipment transit ports and transmit; Wherein, can directly the upstream data that UE sends be forwarded in internet or the local network by the subscriber equipment transit ports, and do not need through core net transmission, and flow is transmitted and can be used to judge whether the IP message that receives from UE can be by described subscriber equipment transit ports transmission.
Further, in the present embodiment, the five-tuple information of the IP message that AP can send according to UE and at packet data protocol (Package Data Protocol, the up TEID of the GTP-U of this UE that PDP) preserves in the activation and descending TEID set up flow and transmit.Wherein, the five-tuple information of IP message comprises: the IP address that the IP address of UE and port, UE are to be visited and the protocol type of port and IP message.
The data transmission method that the embodiment of the invention provides, AP can search corresponding flow according to the IP message that UE sends and transmit, and described IP message is directly sent in internet or the local network by the subscriber equipment transit ports of transmitting binding with flow, reached the purpose that the UE that resides among the FemtoCell and internet or local network are communicated by this locality exchange, because the technical scheme that the embodiment of the invention provides can make the UE that resides among the FemtoCell carry out this locality with internet or local network and communicate by letter, make the user to obtain more value-added service, thereby improved the experience that the user uses FemtoCell by FemtoCell.
As shown in Figure 3, another embodiment of the present invention also provides a kind of data transmission method, is applied in the Pico cell network, comprising:
The equipment that communicates with UE in internet or the local network can obtain information such as source address and source port from the up IP message of UE by the AP transmission, in the present embodiment, source address is the IP address of AP, source port is the subscriber equipment transit ports, the equipment that communicates with UE in described internet or local network need be when UE sends downlink data, can make up the IP message as purpose IP address and destination interface with IP address and the subscriber equipment transit ports of described AP, and this IP message is directly sent to AP.
In the present embodiment, it is to set up in the uplink communication process of UE that flow is transmitted, specifically can be described referring to step as shown in Figure 2, this flow is transmitted and can be comprised: the IP address that the IP address of UE and port, UE are to be visited and user's face general packet radio service tunnel agreement (GPRS Tunnelling Protocol for user plane of port, communication protocol type and UE, GTP-U) the uplink tunnel Endpoint ID in tunnel (Tunnel Endpoint Identifier, TEID) and information such as descending TEID.
The data transmission method that the embodiment of the invention provides, AP can be from the internet or local network directly receive the IP message, and transmit according to this IP message corresponding flow this IP message is sent to UE, reached the purpose that the UE that resides among the FemtoCell and internet or local network are communicated by this locality exchange, because the technical scheme that the embodiment of the invention provides can make the UE that resides among the FemtoCell carry out this locality with internet or local network and communicate by letter, make the user to obtain more value-added service, thereby improved the experience that the user uses FemtoCell by FemtoCell.
In order to make those skilled in the art can more be expressly understood the technical scheme that the embodiment of the invention provides, the data transmission method that the embodiment of the invention provides is elaborated below by specific embodiment.
As shown in Figure 4, further embodiment of this invention provides a kind of data transmission method, comprises following content.
Step 401, the AP of UE in FemtoCell sends PDP and activates request.
Step 402, (AP Home Register AHR) carries out authentication to UE for AP and AP home location register.
Step 403, after the UE authentication was passed through, AP sent to SGSN with the PDP activation request of UE.
Step 404, SGSN sends to corresponding GGSN and creates carrying request (Create PDP ContextRequest) message.
Step 405, GGSN handles the success of Create PDP Context Request message, is UE distributing IP address, sends establishment carrying response (Create PDP Context Response) message and gives SGSN.
Step 406, AP and UE and SGSN between set up in the process of RAB and core net carrying, preserve two ends (uplink and downlink) TEID in the GTP-U tunnel of UE.
Step 407, SGSN sends PDP to UE and activates acceptance (Active PDP Context Accept) message.
Alternatively, need when sending upstream data, the equipment in internet or the local network can also comprise as UE:
Step 408, UE sends the IP message to AP.
Step 409, AP searches from the flow that sets in advance is transmitted with this IP message corresponding flow and transmits, and by transmitting the subscriber equipment transit ports of binding with this flow, the IP message is directly sent to internet or local network.
In the present embodiment, flow is transmitted and can be comprised: IP address that the IP address of UE and port, UE are to be visited and information such as the up TEID in port, communication protocol type and GTP-U tunnel and descending TEID.
Particularly, as shown in Figure 5, step 409 can comprise:
In the present embodiment, AP can adopt deep packet inspection technology to obtain the IP address of E and port, the UE IP address to be visited and the information such as protocol type of port and described IP message from the IP message that UE sends.Further, when UE need carry out uplink communication with the website in the internet, UE purpose IP address to be visited can (Domain Name System, DNS) server carries out domain name mapping to UE website to be visited and obtains by the domain name system of core net.
Wherein, flow bypass rule can comprise: information such as purpose network type (as: internet, core net or local network etc.), the purpose network address, purpose netmask and network access capacity.Further, default flow bypass rule can be set, for example: can default flow bypass rule be set to: the purpose network address=0, purpose netmask=0, purpose network type=internet or core net, network access capacity=permission.
Particularly, in the present embodiment, AP from the flow bypass rule that sets in advance, search with the method for IP message corresponding flow bypass rule can for: the IP address that AP is to be visited with UE in the IP message and the purpose netmask of flow bypass rule carry out AND-operation, when carrying out coming to the same thing of AND-operation, determine this flow bypass rule and be IP datagram literary composition corresponding flow bypass rule as this result with the purpose network address in a certain flow bypass rule and purpose netmask.
In the present embodiment, when the flow bypass rule indication UE purpose network to be visited that finds as AP does not allow to visit, stop follow-up flow process; The flow bypass rule indication UE purpose network to be visited that finds as AP allows visit, but this purpose network stops follow-up flow process when being core net, and the IP message that AP sends UE is transmitted to the SGSN of core net, communicates by SGSN and GGSN.
In this step, the up TEID of the GTP-U of the five-tuple information of the IP message that AP can send according to UE and this UE that preserves in step 406 and descending TEID set up flow and transmit.Wherein, the five-tuple information of IP message comprises: the IP address that the IP address of UE and port, UE are to be visited and the protocol type of port and IP message.
The IP message that described subscriber equipment transit ports is used for directly UE being sent is forwarded to internet or local network, and do not need through the core net transmission, described flow is transmitted and is used to judge whether the IP message that receives from UE can send by described subscriber equipment transit ports.
In this step, can delete the GTP-U head of IP message, the IP address of UE in this IP message is changed to the IP address of this AP, the port of UE in this IP message is changed to the subscriber equipment transit ports of transmitting binding with flow, generate new IP message by AP; AP directly sends to internet or local network with this new IP message, and in the present embodiment, when UE purpose network to be visited was the internet, AP directly sent to the internet with this new IP message by network interface unit.
Alternatively, the equipment in internet or local network need can also comprise when UE sends downlink data:
Step 410, AP from the internet or local network directly receive the IP message.
The equipment that communicates with UE in internet or the local network can obtain information such as source address and source port from the up IP message of UE by the AP transmission, in the present embodiment, source address is the IP address of AP, source port is the subscriber equipment transit ports, the equipment that communicates with UE in described internet or local network need be when UE sends downlink data, can make up the IP message as purpose IP address and destination interface with IP address and the subscriber equipment transit ports of described AP, and this IP message is directly sent to AP.
Step 411, AP searches from the flow that sets in advance is transmitted with this IP message corresponding flow and transmits, and transmits according to this flow the IP message is sent to UE.
Particularly, as shown in Figure 6, step 411 can comprise:
In the present embodiment, source IP address and source port are the IP address and the port of the network equipment of communicating by letter with UE in internet or the local network; Purpose IP address and destination interface are IP address and the subscriber equipment transit ports of AP.
In this step, AP can change to the destination address of IP message the IP address that flow is transmitted middle UE, the destination interface of IP message is changed to the port that flow is transmitted middle UE, the up TEID in the GTP-U tunnel of the subscriber equipment in transmitting according to flow and descending TEID make up the GTP-U head, described IP message is carried out the GTP-U encapsulation, generate new IP message; The IP message that this is new sends to UE.
Further, in order to guarantee the correct transmission of IP message, make same PDP Context both be fit to the core network transfer of data, be fit to local exchange again, AP can distribute a GTP-U sequence number (Gtp_Seq) for each PDP activates context in advance, the initial value of this Gtp_Seq is 0, when AP from the internet, local network or core net receive after the IP datagram literary composition, the local Gtp_Seq that preserves of AP is updated to: Gtp_Seq=Gtp_Seq+1, and the Gtp_Seq after this renewal is added in the GTP-U head of the IP datagram literary composition that internet or local network send, perhaps adopt Gtp_Seq after this renewals to revise Gtp_Seq from the GTP-U head of the IP datagram literary composition of core net transmission.
Step 412, after the business of carrying out between the equipment in UE and internet or the local network was finished, UE sent PDP deexcitation request (DeActive PDP Context Request) message to SGSN.
Step 413, SGSN sends deleting bearing request (Delete PDP ContextRequest) message to corresponding GGSN.
Step 414, handling after the Delete PDP Context Request message of success, GGSN sends deleting bearing response (Delete PDP Context Response) message to SGSN.
Step 415, SGSN sends the PDP deexcitation by AP to UE and accepts (DeActive PDP ContextAccept) message.
Step 416, when AP received DeActive PDP Context Accept message, the deletion flow was transmitted, and discharging AP is the subscriber equipment transit ports that UE distributes.
Alternatively, in the present embodiment, AP can set in advance the deletion time gate limit value that flow is transmitted, and when AP does not use inflow-rate of water turbine to transmit in this deletion time gate limit value, then deletes this flow and transmits.
The data transmission method that the embodiment of the invention provides, when carrying out transmitting uplink data, AP can search corresponding flow according to the IP message that UE sends and transmit, and by the subscriber equipment transit ports of transmitting binding with flow described IP message is directly sent in internet or the local network; When carrying out downlink data transmission, AP can be from the internet or local network directly receive the IP datagram literary composition, and transmit according to this IP datagram literary composition corresponding flow this IP message is sent to UE, reached the purpose that the UE that resides among the FemtoCell and internet or local network are communicated by this locality exchange, because the technical scheme that the embodiment of the invention provides can make the UE that resides among the FemtoCell carry out this locality with internet or local network and communicate by letter, make the user to obtain more value-added service, thereby improved the experience that the user uses FemtoCell by FemtoCell; After the business of carrying out between the equipment in UE and internet or the local network was finished, AP can delete the flow of this UE and transmit, and then to discharge AP be UE distributing user equipment transit ports, had reached the purpose of saving resource.
As shown in Figure 7, one embodiment of the invention also provides a kind of access point, can comprise:
Receiving element 701 is used to receive the IP message that subscriber equipment sends;
In the present embodiment, flow is transmitted and can be comprised: the communication protocol type that IP address that the IP address of UE and port, UE are to be visited and port and UE use further, can also comprise information such as the up TEID in GTP-U tunnel of UE and descending TEID.
Transmitting element 703, be used for searching unit 702 and finding the IP message corresponding flow that receives with receiving element when transmitting when first, by with described first search flow that unit 702 finds and transmit the subscriber equipment transit ports of binding the IP message that described receiving element 701 receives is directly sent to internet or local network.
Further, as shown in Figure 8, described first searches unit 702 can comprise:
Obtain subelement 7021, be used for obtaining user device IP address and port, the subscriber equipment IP address to be visited and the protocol type of port and described IP message from the IP message that described receiving element 701 receives;
Further, as shown in Figure 9, described transmitting element 703 can comprise:
Generate subelement 7031, be used to delete the GTP-U head of described IP message, user device IP address in this IP message is changed to the IP address of described access point, the port of subscriber equipment in this IP datagram literary composition is changed to the subscriber equipment transit ports of transmitting binding with described flow, generate new IP message;
Send subelement 7032, the new IP message that is used for directly described generation subelement 7031 being generated sends to internet or local network.
Further, as shown in figure 10, described access point can also comprise:
Second searches unit 704, be used for searching unit 702 and not finding the IP message corresponding flow that receives with described receiving element when transmitting when described first, from the flow bypass rule that sets in advance, search the IP message corresponding flow bypass rule that receives with described receiving element 701;
Wherein, flow bypass rule comprises: information such as purpose network type (as: internet, core net or local network etc.), the purpose network address, purpose netmask and network access capacity.Further, default flow bypass rule can be set, for example: can default flow bypass rule be set to: the purpose network address=0, purpose netmask=0, purpose network type=internet or core net, network access capacity=permission.
Determining unit 705, be used for when described second searches unit 704 and find with described IP message corresponding flow bypass rule, determine according to this flow bypass rule whether described subscriber equipment purpose network to be visited allows visit, and whether this purpose network is internet or local network; Perhaps, when described second searches unit 704 and does not find with described IP message corresponding flow bypass rule, determine according to default flow bypass rule whether described subscriber equipment purpose network to be visited allows visit, and whether this purpose network is internet or local network;
Set up unit 706, be used for allowing visit for described subscriber equipment purpose network to be visited in definite result of described determining unit 705, and when this purpose network is internet or local network, be described IP datagram literary composition distributing user equipment transit ports, and the flow of foundation and the binding of this subscriber equipment transit ports is transmitted.
Further, as shown in figure 10, described access point can also comprise:
Delete cells 707 is used for deleting described flow and transmitting when described subscriber equipment and described internet or local network sign off.
The specific implementation method of the access point that the embodiment of the invention provides can be described referring to the data transmission method that the embodiment of the invention provides, and do not do herein and give unnecessary details.
The access point that the embodiment of the invention provides can be searched corresponding flow according to the IP message that subscriber equipment sends and transmit, and described IP message is directly sent in internet or the local network by the subscriber equipment transit ports of transmitting binding with flow, reached to make and resided in the purpose that Pico cell user device in network and internet or local network communicate by this locality exchange, having solved prior art can't make and reside in the Pico cell user device in network and carry out local problem of communicating by letter with internet or local network, because the technical scheme that provides of the embodiment of the invention can make and reside in the Pico cell user device in network and carry out this locality with internet or local network and communicate by letter, make the user to obtain more value-added service, thereby improved the experience that the user uses the Pico cell network by the Pico cell network.
As shown in figure 11, another embodiment of the present invention also provides a kind of access point, comprising:
Receiving element 1101 is used for from the internet or local network directly receives the IP message;
Transmitting element 1103 is used for finding the IP message corresponding flow that receives with described receiving element 1101 when transmitting when the described unit 1102 of searching, and searches flow that unit 1102 finds and transmits described IP message is sent to subscriber equipment according to described.
Further, as shown in figure 12, described transmitting element 1103 can comprise:
Generate subelement 11031, the destination address of the IP message that described receiving element 1101 is received changes to described flow and transmits middle user device IP address, destination interface changes to the port that described flow is transmitted middle subscriber equipment, the up TEID in GTP-U tunnel in transmitting according to described flow and subscriber equipment and descending TEID make up the GTP-U head, described IP datagram literary composition is carried out the GTP-U encapsulation, generate new IP message;
Send subelement 11032, be used for the new IP message that described generation subelement 11031 generates is sent to described subscriber equipment.
Further, as shown in figure 12, described transmitting element 1103 can also comprise:
Add subelement 11033, be used for GTP-U head interpolation GTP-U sequence number to the new IP datagram literary composition of described generation subelement 11031 generations.
As shown in figure 13, described access point can also comprise:
Revise unit 1104, be used for when receiving the IP message, revising the GTP-U sequence number of this IP message from core net.
The specific implementation method of the access point that the embodiment of the invention provides can be described referring to the data transmission method that the embodiment of the invention provides, and do not do herein and give unnecessary details.
The access point that the embodiment of the invention provides can be from the internet or local network directly receive the IP message, and transmit according to this IP message corresponding flow this IP message is sent to subscriber equipment, reached to make and resided in the purpose that Pico cell user device in network and internet or local network communicate by this locality exchange, having solved prior art can't make and reside in the Pico cell user device in network and carry out local problem of communicating by letter with internet or local network, because the technical scheme that provides of the embodiment of the invention can make and reside in the Pico cell user device in network and carry out this locality with internet or local network and communicate by letter, make the user to obtain more value-added service, thereby improved the experience that the user uses the Pico cell network by the Pico cell network.
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-readable recording medium, as ROM/RAM, magnetic disc or CD etc.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection range with claim.
Claims (21)
1. a data transmission method is applied in the Pico cell network, it is characterized in that, comprising:
Receive the procotol IP message that subscriber equipment sends;
From the flow that sets in advance is transmitted, search with described IP message corresponding flow and transmit;
When existing when transmitting, described IP message is directly sent to internet or local network by the subscriber equipment transit ports of transmitting binding with described flow with described IP message corresponding flow.
2. method according to claim 1 is characterized in that, described searching from the flow that sets in advance is transmitted with described IP message corresponding flow transmitted, and comprising:
From described IP message, obtain user device IP address and port, the subscriber equipment IP address to be visited and the protocol type of port and described IP message;
From the described flow that sets in advance is transmitted, search with described user device IP address and port, the subscriber equipment IP address to be visited and the protocol type corresponding flow of port and described IP message and transmit.
3. method according to claim 1 is characterized in that, describedly by the subscriber equipment transit ports of transmitting binding with described flow described IP message is directly sent to internet or local network, comprising:
Access point is deleted user's face general packet radio service tunnel agreement GTP-U head of described IP message, user device IP address in this IP message is changed to the IP address of access point, the port of subscriber equipment in this IP message is changed to the subscriber equipment transit ports of transmitting binding with described flow, generate new IP message; Described new IP message is sent to internet or local network.
4. method according to claim 1 is characterized in that,
When not existing when transmitting, from the described flow bypass rule that sets in advance, search and described IP message corresponding flow bypass rule with described IP message corresponding flow;
When finding with described IP message corresponding flow bypass rule, determine described subscriber equipment purpose network to be visited according to this flow bypass rule and allow visit, and when this purpose network is internet or local network, perhaps, when not finding with described IP message corresponding flow bypass rule, determine described subscriber equipment purpose network to be visited according to default flow bypass rule and allow visit, and when this purpose network is internet or local network, be described IP datagram literary composition distributing user equipment transit ports, and the flow of foundation and the binding of this subscriber equipment transit ports is transmitted.
5. method according to claim 4 is characterized in that, described flow bypass rule comprises:
Purpose network type, the purpose network address, purpose netmask and network access capacity.
6. method according to claim 1 is characterized in that, also comprises:
When described subscriber equipment and described internet or local network sign off, delete described flow and transmit.
7. according to any described method of claim 1-6, it is characterized in that described flow is transmitted and comprised:
The communication protocol type that IP address that user device IP address and port, subscriber equipment are to be visited and port and subscriber equipment use.
8. a data transmission method is applied in the Pico cell network, it is characterized in that, comprising:
From the internet or local network directly receive the IP message;
From the flow that sets in advance is transmitted, search with described IP message corresponding flow and transmit;
When existing when transmitting, transmit according to described flow described IP message is sent to subscriber equipment with described IP message corresponding flow.
9. method according to claim 8 is characterized in that, described flow is transmitted and comprised:
The uplink tunnel Endpoint ID TEID and the descending TEID in the GTP-U tunnel of IP address that user device IP address and port, subscriber equipment are to be visited and port, communication protocol type that subscriber equipment uses and subscriber equipment.
10. according to Claim 8 or 9 described methods, it is characterized in that described transmitting according to described flow sends to subscriber equipment with described IP message and comprise:
The destination address of described IP message is changed to described flow transmit middle user device IP address, the destination interface of described IP datagram literary composition is changed to the port that described flow is transmitted middle subscriber equipment, the up TEID in the GTP-U tunnel of the subscriber equipment in transmitting according to described flow and descending TEID make up the GTP-U head, described IP message is carried out the GTP-U encapsulation, generate new IP message;
Described new IP message is sent to described subscriber equipment.
11. method according to claim 10 is characterized in that, also comprises:
For described GTP-U head adds the GTP-U sequence number.
12. method according to claim 8 is characterized in that, also comprises:
When receiving the IP message, revise the GTP-U sequence number of this IP message from core net.
13. an access point is characterized in that, comprising:
Receiving element is used to receive the IP message that subscriber equipment sends;
First searches the unit, is used for transmitting from the flow that sets in advance searching the IP message corresponding flow that receives with described receiving element and transmitting;
Transmitting element, be used for searching the unit and finding the IP message corresponding flow that receives with described receiving element when transmitting when described first, by with described first search flow that the unit finds and transmit the subscriber equipment transit ports of binding the IP message that described receiving element receives is directly sent to internet or local network.
14. access point according to claim 13 is characterized in that, described first searches the unit comprises:
Obtain subelement, be used for obtaining user device IP address and port, the subscriber equipment IP address to be visited and the protocol type of port and described IP message from the IP message that described receiving element receives;
Search subelement, be used for transmitting to search obtaining user device IP address that subelement obtains and port, subscriber equipment IP address to be visited and the protocol type corresponding flow of port and described IP message is transmitted with described from the flow that sets in advance.
15. access point according to claim 13 is characterized in that, described transmitting element comprises:
Generate subelement, be used to delete the GTP-U head of described IP message, user device IP address in this IP message is changed to the IP address of described access point, the port of subscriber equipment in this IP datagram literary composition is changed to the subscriber equipment transit ports of transmitting binding with described flow, generate new IP message;
Send subelement, the new IP message that is used for directly described generation subelement being generated sends to internet or local network.
16. access point according to claim 13 is characterized in that, also comprises:
Second searches the unit, be used for searching the unit and not finding the IP message corresponding flow that receives with described receiving element when transmitting when described first, from the flow bypass rule that sets in advance, search the IP message corresponding flow bypass rule that receives with described receiving element;
Determining unit, be used for when described second searches the unit and find with described IP message corresponding flow bypass rule, determine according to this flow bypass rule whether described subscriber equipment purpose network to be visited allows visit, and whether this purpose network is internet or local network; Perhaps, when described second searches the unit and does not find with described IP message corresponding flow bypass rule, determine according to default flow bypass rule whether described subscriber equipment purpose network to be visited allows visit, and whether this purpose network is internet or local network;
Set up the unit, be used for allowing visit for described subscriber equipment purpose network to be visited in definite result of described determining unit, and when this purpose network is internet or local network, be described IP message distributing user equipment transit ports, and the flow of foundation and the binding of this subscriber equipment transit ports is transmitted.
17. access point according to claim 13 is characterized in that, also comprises:
Delete cells is used for deleting described flow and transmitting when described subscriber equipment and described internet or local network sign off.
18. an access point is characterized in that, comprising:
Receiving element is used for from the internet or local network directly receives the IP datagram literary composition;
Search the unit, be used for transmitting and search the IP message corresponding flow that receives with described receiving element and transmit from the flow that sets in advance;
Transmitting element is used for finding the IP message corresponding flow that receives with described receiving element when transmitting when the described unit of searching, and searches flow that the unit finds and transmits described IP message is sent to subscriber equipment according to described.
19. access point according to claim 18 is characterized in that, described transmitting element comprises:
Generate subelement, the destination address of the IP message that described receiving element is received changes to described flow and transmits middle user device IP address, destination interface changes to the port that described flow is transmitted middle subscriber equipment, the up TEID in the GTP-U tunnel of the subscriber equipment in transmitting according to described flow and descending TEID make up the GTP-U head, described IP message is carried out the GTP-U encapsulation, generate new IP message;
Send subelement, be used for the new IP message that described generation subelement generates is sent to described subscriber equipment.
20. access point according to claim 19 is characterized in that, described transmitting element also comprises:
Add subelement, be used for GTP-U head interpolation GTP-U sequence number to the new IP datagram literary composition of described generation subelement generation.
21. access point according to claim 18 is characterized in that, also comprises:
Revise the unit, be used for when receiving the IP message, revising the GTP-U sequence number of this IP message from core net.
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| CN200910161940.8A CN102014039B (en) | 2009-09-07 | 2009-09-07 | Data transmission method and access point |
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| CN200910161940.8A CN102014039B (en) | 2009-09-07 | 2009-09-07 | Data transmission method and access point |
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