CN103428888A - Method and system for establishing direct tunnel - Google Patents
Method and system for establishing direct tunnel Download PDFInfo
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- CN103428888A CN103428888A CN2012101669112A CN201210166911A CN103428888A CN 103428888 A CN103428888 A CN 103428888A CN 2012101669112 A CN2012101669112 A CN 2012101669112A CN 201210166911 A CN201210166911 A CN 201210166911A CN 103428888 A CN103428888 A CN 103428888A
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Abstract
The invention provides a method and system for establishing a direct tunnel. The method comprises: after receiving related information of establishment of a direct tunnel of an opposite terminal, a first network element initiates direct tunnel establishment to a second network element of the opposite terminal. According to the invention, because the first network element initiates direct tunnel establishment to the second network element of the opposite terminal after receiving related information of establishment of the direct tunnel of the opposite terminal, data path optimization during exchange between nearby users can be realized, the network resource processing load of the provider can be reduced, and the user data transmission time delay is reduced. Moreover, the using experience of the user can be effectively enhanced.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to a kind of straight-through tunnel establishing method and system.
Background technology
In order to keep the competitiveness of 3-G (Generation Three mobile communication system) in the communications field, for the user provides, speed is faster, the lower and more personalized Mobile Communication Service of time delay, simultaneously, reduce the operation cost of operator, third generation partner program (3rd Generation Partnership Project, 3GPP) standard operation group just is being devoted to the research of evolved packet system (Evolved Packet System, EPS).Whole EPS is divided into wireless access network and core net two parts.Wherein, core net comprises home subscriber server (Home Subscriber Server, HSS), Mobility Management Entity (Mobility Management Entity, MME), Serving GPRS Support Node (Serving GPRS Support Node, SGSN), policy charging rule function (Policy and Charging Rule Function, PCRF) entity, gateway (Serving Gateway, S-GW), packet data network (Packet Data Network, PDN) and packet data gateway (PDN Gateway, P-GW).Below describe functions in detail:
HSS, be the permanent storage place of user contracting data, is positioned at the signing home network of user.
MME, be the storage place of user contracting data in current network, is responsible for the Non-Access Stratum signaling management of terminal to network, the safety verification function of terminal, mobile management, the tracking under user's idle pulley and paging management function and the bearer management of terminal.
SGSN, global system for mobile communications (Global System for Mobile Communications, GSM) strengthen data transfer rate GSM evolution (Enhanced Data Rate for GSM Evolution, EDGE) wireless access network (Radio Access Network), usually referred to as GERAN and universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS) land radio access web (Terrestrial Radio Access Network), usually referred to as the business support point of the user access core network network of UTRAN, similar with MME on function, being responsible for user's position upgrades, the functions such as paging management and bearer management.
S-GW, be the gateway that core net arrives wireless system, is responsible for terminal to the user plane bearer of core net, the data buffer storage under the terminal idle pulley, function, Lawful Interception and packet routing and the forwarding capability of network side initiating business request; S-GW is responsible for the situation that the counting user terminal is used wireless network, and produces the ticket that terminal is used wireless network, sends charging gateway to.
P-GW, be the gateway of evolution system and the outside PDN of this system, and it is connected to internet and PDN is upper, is responsible for the functions such as Internet protocol (Internet Protocol, IP) address assignment, billing function, grouping packet filtering and policy control of terminal.
PDN, be the IP operation network of operator, and this network provides the IP service by the core net of operator for the user.
The PCRF entity is the server of being responsible for providing charging control, online credit control, thresholding control and service quality (Quality of Service, QoS) tactful aspect rule in evolution system.
Wireless access network, by evolution base station (Evolved NodeB, eNB) and 3G radio network controller (Radio Network Controllor, RNC) form, it mainly is responsible for the transmitting-receiving of wireless signal, by air interface and terminal contact, Radio Resource, scheduling of resource and the access control of management air interface.
When the user carries out Operational Visit, terminal can be initiated PDN and connect process of establishing, access point (the Access Point Name that MME/SGSN is corresponding according to the user institute use business of terminal to report, APN) select the core net gateway, set up from the user's face passage between terminal-wireless base station-core net gateway (gateway and IAD).Figure 1 shows that user terminal in prior art receives/send the user plane path of data, wherein,
For the user plane path of setting up between the terminal 1 shown in Fig. 1 and terminal 2.
As can be seen from Figure 1, all data of user terminal all need through IAD (also referred to as anchor gateway), under this data transfer mode, data are focused in anchor gateway, also increased the load of anchor gateway and transmission network, all packets must pass through the IAD this point, can cause again the bottleneck problem of IAD even more serious.In addition, even if two user terminal physical locations of intercommunication are very close mutually, the data communication between them also needs through IAD, has increased the time delay of user data transmission, reduces user's experience.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of straight-through tunnel establishing method and system, the data path optimization in the time of can realizing nearby intercommunication between the user.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of straight-through tunnel establishing method, described method comprises:
After the first network element receives the straight-through building tunnel relevant information of opposite end, initiate the foundation in straight-through tunnel to the second network element of opposite end.
Wherein, described the first network element or the second network element are wireless side network element or gateway.
Wherein, described wireless side network element comprises base station, base station from home, home base-station gateway, radio network controller (RNC), data distribution functional entity;
Described gateway comprises generic services gateway, Serving GPRS Support Node (SGSN).
Further, described method also comprises:
Terminal is when initial access, and the Mobility Management Entity of described terminal sends beared information to IAD; Wherein, described beared information comprises user's face address of termination point of a tunnel identifier (TEID) and the wireless side network element of wireless side network element; Perhaps, described beared information comprises bearing identification, eNB UE S1AP ID and Mobility Management Entity information.
Further, before described the first network element receives the straight-through building tunnel relevant information of opposite end, described method also comprises:
IAD obtains the destination address of the message of receiving, when the terminal of judging described destination address is when service is provided self, sends the straight-through building tunnel indication that includes straight-through building tunnel relevant information; Perhaps,
IAD obtains the destination address of the message of receiving, when the terminal of judging described destination address is when service is provided self, builds the packet that triggers straight-through building tunnel and sends, and wherein, described packet comprises straight-through building tunnel relevant information.
Wherein, described straight-through building tunnel relevant information comprises TEID and the wireless side network element of opposite end or user's face address of gateway of wireless side network element or the service network element of opposite end; Perhaps, the bearing identification, eNB UE S1AP ID and the Mobility Management Entity information that comprise opposite end; Perhaps, the bearing identification, chain of command TEID and the control plane address that comprise the gateway of opposite end.
Wherein, the first network element is initiated being established as of straight-through tunnel to the second network element of opposite end:
The first network element judge described the second network element self maintained can be straight-through the list of wireless side network element the time, send straight-through building tunnel request message to described the second network element;
After described the second network element receives described straight-through building tunnel request message, to described the first network element, send straight-through building tunnel response message.
Further, described method also comprises:
When the first network element detects the radio bearer that needs the release terminal, to the second straight-through tunnel of network element transmission release message of opposite end;
Described the second network element is deleted corresponding straight-through tunnel information, and the straight-through tunnel of reply discharges response;
Wherein, described straight-through tunnel release message carries straight-through tunnel relevant information, sign ID or tunnel information that described straight-through tunnel relevant information arranges while comprising straight-through building tunnel; Perhaps, the beared information of the wireless side network element of opposite end;
Described beared information comprises user's face address of TEID and the wireless side network element of wireless side network element; Perhaps, comprise bearing identification, eNB UE S1AP ID and Mobility Management Entity information.
Wherein, described bearing identification comprises wireless access bearing sign symbol (RAB ID) or strengthens wireless access bearing sign symbol (E-RAB ID).
A kind of straight-through building tunnel system, described system comprises: the first network element and the second network element; Wherein,
Described the first network element, after the straight-through building tunnel relevant information that receives opposite end, initiate the foundation in straight-through tunnel to the second network element of opposite end.
Wherein, described the first network element or the second network element are wireless side network element or gateway.
Wherein, described wireless side network element comprises base station, base station from home, home base-station gateway, RNC, data distribution functional entity;
Described gateway comprises generic services gateway, SGSN.
Further, described system also comprises: Mobility Management Entity, IAD; Wherein,
Described movement, to management entity, when initially accessing, sends beared information to IAD for terminal; Wherein, described beared information comprises user's face address of TEID and the wireless side network element of wireless side network element; Perhaps, described beared information comprises bearing identification, eNB UE S1AP ID and Mobility Management Entity information.
Wherein, described IAD, for obtaining the destination address of the message of receiving, when the terminal of judging described destination address is when service is provided self, transmission includes the straight-through building tunnel indication of straight-through building tunnel relevant information, or builds the packet that triggers straight-through building tunnel and send; Wherein, described packet comprises straight-through building tunnel relevant information.
Wherein, described straight-through building tunnel relevant information comprises TEID and the wireless side network element of opposite end or user's face address of gateway of wireless side network element or the service network element of opposite end; Perhaps, the bearing identification, eNB UE S1AP ID and the Mobility Management Entity information that comprise opposite end; Perhaps, the bearing identification, chain of command TEID and the control plane address that comprise the gateway of opposite end.
Wherein, described the first network element, specifically for judge described the second network element self maintained can be straight-through the list of wireless side network element the time, send straight-through building tunnel request message to described the second network element;
Described the second network element, after receiving described straight-through building tunnel request message, send straight-through building tunnel response message to described the first network element.
Further, described the first network element, also, for when the radio bearer that needs the release terminal being detected, send straight-through tunnel release message to described the second network element;
Described the second network element, also for after receiving described straight-through tunnel release message, delete corresponding straight-through tunnel information, and the straight-through tunnel of reply discharges response;
Wherein, described straight-through tunnel release message carries straight-through tunnel relevant information, sign ID or tunnel information that described straight-through tunnel relevant information arranges while comprising straight-through building tunnel; Perhaps, the beared information of the wireless side network element of opposite end;
Described beared information comprises user's face address of TEID and the wireless side network element of wireless side network element; Perhaps, comprise bearing identification, eNB UE S1AP ID and Mobility Management Entity information.
Wherein, described bearing identification comprises RAB ID or E-RAB ID.
The present invention by the straight-through building tunnel relevant information that receives opposite end at the first network element after, initiate the foundation in straight-through tunnel to the second network element of opposite end, data path optimization in the time of can realizing nearby intercommunication between the user reduces carrier network resource processing load, lower the user data transmission time delay, and effectively strengthened user's experience.
The accompanying drawing explanation
Fig. 1 is the schematic diagram that in communication system, existing user terminal received/sent the user plane path of data;
The realization flow schematic diagram that Fig. 2 is the straight-through tunnel establishing method of the present invention;
Fig. 3 is the path schematic diagram that the present invention is based on the straight-through tunnel of system shown in Figure 1 foundation;
Fig. 4 is the another kind of path schematic diagram that the present invention is based on the straight-through tunnel of system shown in Figure 1 foundation;
The realization flow schematic diagram of the embodiment mono-that Fig. 5 is the straight-through tunnel establishing method of the present invention;
The realization flow schematic diagram of the embodiment bis-that Fig. 6 is the straight-through tunnel establishing method of the present invention;
The realization flow schematic diagram of the embodiment tri-that Fig. 7 is the straight-through tunnel establishing method of the present invention;
The realization flow schematic diagram of the embodiment tetra-that Fig. 8 is the straight-through tunnel establishing method of the present invention;
The realization flow schematic diagram of the embodiment five that Fig. 9 is the straight-through tunnel establishing method of the present invention;
The realization flow schematic diagram of the embodiment six that Figure 10 is the straight-through tunnel establishing method of the present invention;
The realization flow schematic diagram of the embodiment seven that Figure 11 is the straight-through tunnel establishing method of the present invention.
Embodiment
Basic thought of the present invention is: after the first network element receives the straight-through building tunnel relevant information of opposite end, initiate the foundation in straight-through tunnel to the second network element of opposite end.
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 2 shows the realization flow of the straight-through tunnel establishing method of the present invention, and as shown in Figure 2, described method comprises the steps:
Wherein, described beared information comprises the termination point of a tunnel identifier (Tunnel Endpoint Identifier, TEID) of wireless side network element and user's face address of wireless side network element; Perhaps, described beared information comprises bearing identification, base station terminal S1 Application Protocol sign (eNodeB UE S1 Application Protocol Identifier, eNB UE S1AP ID) and Mobility Management Entity information; Wherein, described bearing identification comprises wireless access bearing sign symbol (Radio Access Bearer Identifier, RAB ID) or strengthens wireless access bearing sign symbol (E-Radio Access Bearer Identifier, E-RAB ID).
Wherein, described straight-through building tunnel relevant information comprises TEID and the wireless side network element of opposite end or user's face address of gateway of wireless side network element or the service network element of opposite end; Perhaps, the bearing identification, eNB UE S1AP ID and the Mobility Management Entity information that comprise opposite end; Perhaps, the bearing identification, chain of command TEID and the control plane address that comprise the gateway of opposite end.
Wherein, described the first network element or the second network element are wireless side network element or gateway; Further, described wireless side network element comprises base station, base station from home, home base-station gateway, RNC, data distribution functional entity; Described gateway comprises generic services gateway, SGSN.
Wherein, the first network element is initiated being established as of straight-through tunnel to the second network element of opposite end:
The first network element judge described the second network element self maintained can be straight-through the list of wireless side network element the time, send straight-through building tunnel request message to described the second network element;
After described the second network element receives described straight-through building tunnel request message, to described the first network element, send straight-through building tunnel response message.
Fig. 3 and Fig. 4 show according to said method in the signal of the path in the straight-through tunnel of setting up based on system shown in Figure 1; Wherein, Fig. 3 shows the situation that has straight-through tunnel in identical IAD or gateway situation between the wireless side network element, Fig. 4 shows the situation that has straight-through tunnel in identical IAD situation between gateway, foundation by straight-through tunnel, not only can reduce carrier network resource processing load, and can effectively strengthen user's experience.
Fig. 5 shows the realization flow of the embodiment mono-of the straight-through tunnel establishing method of the present invention, and as shown in Figure 5, described embodiment mono-comprises the steps:
Step 501～502, terminal sends the PDN connection through the wireless side network element to Mobility Management Entity and sets up request message.
Step 503, Mobility Management Entity sends to gateway the session request that creates.
Step 504, the establishment conversation request message that gateway will receive from Mobility Management Entity sends to IAD.
Step 505, IAD is replied and is created conversational response to gateway.
Step 506, gateway is replied and is created conversational response to Mobility Management Entity.
Step 507, Mobility Management Entity is accepted to wireless side network element initiation carrying foundation request or PDN connection foundation.
Step 508, carry out RRC and connect reconfiguration course between wireless side network element and terminal.
Step 509, the wireless side network element is replied the Mobility Management Entity carrying and is set up response.
Step 510, terminal sends direct-sending message to the wireless side network element.
Step 511, the wireless side network element sends the PDN connection to Mobility Management Entity and has set up.
So far, up GPRS Tunnel Protocol (GPRS Tunnel Protocol, GTP) building tunnel completes.
Step 512, Mobility Management Entity sends and revises carrying request, portability beared information to gateway.
Particularly, in this step, the beared information carried comprises the TEID of the wireless side network element that existing beared information all can carry and user's face address of wireless side network element; Further, optional bearing identification, eNB UE S1AP ID and the Mobility Management Entity information of comprising also.
Step 513, gateway sends and revises bearing request message, portability beared information to IAD.
Particularly, when the beared information received from Mobility Management Entity when gateway comprises bearing identification, eNB UE S1AP ID and Mobility Management Entity information, in this step, entrained beared information comprises bearing identification, eNB UE S1AP ID and Mobility Management Entity information;
When the beared information received from Mobility Management Entity when gateway does not comprise bearing identification, eNB UE S1AP ID and Mobility Management Entity information, in this step, entrained beared information comprises user's face address of TEID and the wireless side network element of wireless side network element.
Step 514, IAD is responded and is revised the carrying response to gateway.
Step 515, gateway is responded Mobility Management Entity bearer update response message.
Fig. 6 shows the realization flow of the embodiment bis-of the straight-through tunnel establishing method of the present invention, and as described in Figure 6, described embodiment bis-comprises the steps:
Step 601, terminal 1 sends datagram to terminal 2, and the IAD of terminal 1 is resolved this data message, obtains the destination address in message; Here, described destination address is the IP address of terminal 2.
Step 602, the IAD inspection is used whether the terminal 2 of described IP address is by self service, if, perform step 603, otherwise, described data message is processed according to existing handling process;
Step 603, IAD sends straight-through building tunnel indication to gateway, and wherein, described straight-through building tunnel indication comprises the wireless side net element information of terminal 2, the Bear ID of terminal 1, straight-through building tunnel relevant information.
Particularly, when the beared information that IAD obtains in above-described embodiment one comprises user's face address of the TEID of wireless side network element and wireless side network element, described straight-through building tunnel relevant information comprises user's face address of the wireless side network element of the TEID of wireless side network element of terminal 2 and terminal 2.
When the beared information that IAD obtains in above-described embodiment one comprises bearing identification, eNB UE S1AP ID and Mobility Management Entity information, described straight-through building tunnel relevant information comprises bearing identification, eNB UE S1AP ID and the Mobility Management Entity information of terminal 2.
Step 604, gateway will lead directly to the building tunnel Indication message and send to Mobility Management Entity, and here, described straight-through building tunnel Indication message comprises the wireless side net element information of terminal 2, the Bear ID of terminal 1, straight-through building tunnel relevant information; Wherein, described straight-through building tunnel relevant information is identical with the straight-through building tunnel relevant information of step 603.
Step 605, Mobility Management Entity forwards straight-through building tunnel Indication message to wireless side network element 1, and here, described straight-through building tunnel Indication message comprises the wireless side net element information of terminal 2, the Bear ID of terminal 1, straight-through building tunnel relevant information; Wherein, described straight-through building tunnel relevant information is identical with the straight-through building tunnel relevant information of step 603.
Step 606, alternatively, wireless side network element 1 check self maintained can be straight-through the list of wireless side network element, find that wireless side network element 2 is in this list, judgement can be set up straight-through tunnel.
Step 607, wireless side network element 1 sends straight-through building tunnel request message to wireless side network element 2, carry straight-through building tunnel relevant to client information.
Here, straight-through tunnel can be shunted based on carrying, also can be shunted based on application or IP stream, below this is elaborated:
1), in the situation that shunted based on carrying, need to set up the tunnel based on carrying between the wireless side network element.What now, the straight-through building tunnel described in this step was relevant is to client information the straight-through building tunnel relevant information that in above-mentioned steps 603～605, straight-through building tunnel Indication message comprises.
2) in the situation that shunted based on application or IP stream, the straight-through building tunnel relevant information that in above-mentioned steps 603～605, straight-through building tunnel Indication message comprises is optional service traffics template (the Traffic Flow Template that carries local terminal and opposite end also, TFT), match radio bearer for downlink data, if set up the tunnel based on carrying between the wireless side network element, can not carry this TFT; Straight-through building tunnel relevant information is the optional strategy that carries local terminal and opposite end also, for upstream data, based on strategy, routes to straight-through tunnel or core network tunnels.Now, the information for opposite end in described straight-through building tunnel relevant information in situation about being shunted based on application or IP stream to client information that the straight-through building tunnel described in this step is relevant, as the strategy of TFT, opposite end, opposite end.
Step 608, the straight-through building tunnel response message of wireless side network element 2 loopback wireless side network element 1.
Step 609, wireless side network element 1 sends straight-through building tunnel to Mobility Management Entity to be confirmed, the straight-through building tunnel result of notice.
Step 610, Mobility Management Entity sends straight-through building tunnel to gateway to be confirmed, the straight-through building tunnel result of notice.
Step 611, gateway sends straight-through building tunnel to IAD to be confirmed, the straight-through building tunnel result of notice.
Step 612, when terminal 1 sends datagram to terminal 2, in the situation that, based on application or IP diverting flow, wireless side network element 1 will check message and the corresponding strategy in this tunnel, find to need this datagram is forwarded by straight-through tunnel, described data message is sent to wireless side network element 2; In the situation that shunted the straight-through tunnel by the data retransmission on radio bearer to correspondence based on carrying.
Step 613, while between the wireless side network element, setting up the tunnel based on carrying, wireless side network element 2, from straight-through tunnel receives data, forwards the data on corresponding radio bearer; Otherwise wireless side network element 2, from straight-through tunnel receives data, is mapped to radio bearer by data message by TFT, then by data retransmission to terminal 2.
Step 614, alternatively, wireless side network element 1 check self maintained can be straight-through the list of wireless side network element, find that the wireless side network element 1 of opposite end is not in this list, or the straight-through building tunnel between wireless side network element 1 and wireless side network element 2 is unsuccessfully.
Step 615, wireless side network element 1 sends straight-through building tunnel failure result to Mobility Management Entity.
Step 616, Mobility Management Entity is informed the straight-through building tunnel failure of gateway.
Step 617, gateway is informed the straight-through building tunnel failure of IAD.
In addition, in above-mentioned flow process when straight-through building tunnel, two wireless side network elements can arrange respectively sign ID, and (this sign can be based on the terminal rank, as IMSI, also can based on the carrying rank) pass to the other side in step 607 and 608, or wireless side network element 1 by its beared information (as TEID and user's face address; Perhaps bearing identification, eNB UE S1AP ID and Mobility Management Entity information) pass to wireless side network element 2 in step 607, for use in bearer management.
Fig. 7 shows the realization flow of the embodiment tri-of the straight-through tunnel establishing method of the present invention, and as shown in Figure 7, described embodiment tri-comprises the steps:
Step 701, terminal 1 sends datagram to terminal 2, and the IAD of terminal 1 is resolved this data message, obtains the destination address in message; Here, described destination address is the IP address of terminal 2.
Step 702, IAD is used whether the terminal 2 of described IP address is by self service, if, perform step 703, otherwise, described data message is processed according to existing handling process;
Step 703～704, IAD builds the packet that issues that triggers straight-through building tunnel, and sends to the gateway request to set up straight-through tunnel, and described packet comprises the wireless side net element information of terminal 2, straight-through building tunnel relevant information.
Here, when the beared information that IAD obtains in above-described embodiment one comprises user's face address of the TEID of wireless side network element and wireless side network element, described straight-through building tunnel relevant information comprises user's face address of the wireless side network element of the TEID of wireless side network element of terminal 2 and terminal 2.
When the beared information that IAD obtains in above-described embodiment one comprises bearing identification, eNB UE S 1APID and Mobility Management Entity information, described straight-through building tunnel relevant information comprises the bearing identification of terminal 2, eNB UE S1AP ID and Mobility Management Entity information.
Step 705, gateway will trigger the Packet Generation of straight-through building tunnel to wireless side network element 1, and here, described packet comprises the wireless side net element information of terminal 2, straight-through building tunnel relevant information; Wherein, described straight-through building tunnel relevant information is identical with the straight-through building tunnel relevant information in packet in step 703～704.
Step 706, wireless side network element 1 is resolved the packet obtained from gateway, and obtains parameter wherein.
Step 707, alternatively, wireless side network element 1 check self maintained can be straight-through the list of wireless side network element, find that the wireless side network element 2 of opposite end is in this list, judgement can be set up straight-through tunnel.
Step 708, wireless side network element 1 sends straight-through building tunnel request message to wireless side network element 2, carry straight-through building tunnel relevant to client information.
Here, straight-through tunnel can be shunted based on carrying, also can be shunted based on application or IP stream, below this is elaborated:
1), in the situation that shunted based on carrying, need to set up the tunnel based on carrying between the wireless side network element.What now, the straight-through building tunnel described in this step was relevant is in above-mentioned steps 703～706 to client information the straight-through building tunnel relevant information that packet comprises.
2) in the situation that shunted based on application or IP stream, the straight-through building tunnel relevant information that in above-mentioned steps 703～706, packet comprises is the optional TFT that carries local terminal and opposite end also, match radio bearer for downlink data, if set up the tunnel based on carrying between the wireless side network element, can not carry this TFT; Straight-through building tunnel relevant information is the optional strategy that carries local terminal and opposite end also, for upstream data, based on strategy, routes to straight-through tunnel or core network tunnels.Now, the information for opposite end in described straight-through building tunnel relevant information in situation about being shunted based on application or IP stream to client information that the straight-through building tunnel described in this step is relevant, as the strategy of TFT, opposite end, opposite end.
Step 709, the straight-through tunnel response message of wireless side network element 2 loopback wireless side network element 1.
Step 710, wireless side network element 1 sends straight-through building tunnel to gateway to be confirmed, the straight-through building tunnel result of notice.
Step 711, gateway sends straight-through building tunnel to IAD to be confirmed, the straight-through building tunnel result of notice.
Step 712, when terminal 1 sends data to terminal 2, in the situation that, based on application or IP diverting flow, wireless side network element 1 will check message and the corresponding strategy in this tunnel, find to need this datagram is forwarded by straight-through tunnel, by straight-through tunnel, data message is forwarded; In the situation that shunted the straight-through tunnel by the data retransmission on radio bearer to correspondence based on carrying.
Step 713 is set up the tunnel based on carrying between the wireless side network element, and wireless side network element 2, from straight-through tunnel receives data, forwards the data on corresponding radio bearer; Otherwise wireless side network element 2, from straight-through tunnel receives data, is mapped to radio bearer by data message by TFT, then by data retransmission to terminal 2.
Step 714, alternatively, wireless side network element 1 check self maintained can be straight-through the list of wireless side network element, find that the wireless side network element 2 of opposite end is not in this list, or the straight-through building tunnel between wireless side network element 1 and wireless side network element 2 is unsuccessfully.
Step 715, wireless side network element 1 sends straight-through building tunnel failure result by Mobility Management Entity to gateway.
Step 716, gateway is informed the straight-through building tunnel failure of IAD.
In addition, in above-mentioned flow process when straight-through building tunnel, two wireless side network elements can arrange respectively sign ID, and (this sign can be based on the terminal rank, as IMSI, also can based on the carrying rank) pass to the other side in step 708 and 709, or wireless side network element 1 by its beared information (as TEID and user's face address; Perhaps bearing identification, eNB UE S1AP ID and Mobility Management Entity information) pass to wireless side network element 2 in step 708, for use in bearer management.
Further, straight-through tunnel establishing method is except embodiment as shown in Figure 6 and Figure 7, can also by IAD carrying set up or the bearing modification process in the wireless side net element information of terminal 2 and straight-through building tunnel relevant information set up to signaling by carrying through gateway, Mobility Management Entity, send the wireless side network element to.
Fig. 8 shows wireless side network element of the present invention or Mobility Management Entity is initiated the flow chart that S1 discharges.Now, led directly to the realization flow of embodiment tetra-of the judgement form of building tunnel by IAD, as shown in Figure 8, described embodiment tetra-comprises the steps:
Step 801, need the signaling that discharges terminal 1 to connect and radio bearer when wireless side network element 1 detects, and wireless side network element 1 sends S1 terminal context releasing request message to Mobility Management Entity, in described message, carries release cause.
Should be appreciated that when the S1 Release flow process by the initiation of wireless side network element, just need this step.If Mobility Management Entity is initiated S1 Release flow process, directly from step 802.
Step 802, Mobility Management Entity sends and discharges the access bearer request message to gateway, and request discharges S1-user's face (S1 Userplane, S1-U) carrying of terminal 1.
Step 803, gateway sends and discharges the access bearer request message to IAD, and request discharges the relevant information in straight-through tunnel.
The purpose of this message is the relevant bearer information that the requirement IAD discharges the wireless side network element 1 of local storage, can realize by newly-increased message, also can realize by revising existing message, and the title of message can be other title.
Step 804, IAD discharges the relevant bearer information of the wireless side network element 1 of local storage.
Step 805, IAD returns and discharges the access bearer response message to gateway.
The purpose of this message is the result of notification service gateway processes request message, can realize by newly-increased message, also can realize by revising existing message, and the title of message can be other title.
Step 806, gateway discharges the information relevant to the wireless side network element of terminal 1, and returns and discharge the access bearer response message to Mobility Management Entity.
Step 807, Mobility Management Entity sends S1 terminal context release command message to wireless side network element 1, carries release cause in message.
Step 808, when the also not release of radio bearer of terminal 1, the context of wireless side network element 1 notification terminal 1 releasing wireless loading, and deletion terminal 1.
Step 809, wireless side network element 1 sends straight-through tunnel release message to wireless side network element 2, the straight-through tunnel of portability relevant information.
The purpose of this message is that notice wireless side network element 2 is deleted straight-through tunnel relevant information, can realize by newly-increased message, also can realize by revising existing message, and the title of message can be other title.
Particularly, when described straight-through tunnel is based on carrying while setting up, sign ID or tunnel information that the straight-through tunnel relevant information that the straight-through tunnel release message that wireless side network element 1 can send comprises arranges during for straight-through building tunnel.
When straight-through tunnel, not based on when carrying, the straight-through tunnel relevant information that the straight-through tunnel release message that wireless side network element 1 can send carries can comprise: the beared information of wireless side network element 2 is (as TEID and user's face address; Perhaps, bearing identification, eNB UE S1AP ID and Mobility Management Entity information).
Step 810～811, wireless side network element 2 is deleted corresponding straight-through tunnel information, and the straight-through tunnel of transmission discharges response.
Should be appreciated that when not having straight-through tunnel, step 809 is not carried out to 811.
In addition, for simplified characterization, embodiment tetra-only be take situation that S1 discharges flow process and the delivery mode in straight-through tunnel is described as example.In terminal or PDN connection or carrying the process discharged, also need wireless side network element notice opposite end wireless side network element to lead directly to tunnel and discharge, flow process and above-mentioned steps 809 and 811 are similar, do not repeat them here.
In addition, in above-described embodiment four, also there is following optimization implementation:
The ability that the wireless side network element carries local routing in the step 502 of embodiment mono-is during to Mobility Management Entity, in step 802, Mobility Management Entity can send to gateway by the indication of the ability of wireless side network element local routing, when service gateway discovering wireless side network element has the local routing ability, perform step 803,804 and 805; When service gateway discovering wireless side network element does not have the local routing ability, do not perform step 803,804 and 805.
Perhaps, the ability that the wireless side network element carries local routing in the step 502 of embodiment mono-during to Mobility Management Entity, finds the wireless side network element when Mobility Management Entity and has the local routing ability, and notification service gateway execution step 803,804 and 805; Find the wireless side network element when Mobility Management Entity and do not there is the local routing ability,, without informing the gateway extraneous information, now do not perform step 803,804 and 805.
Perhaps, all carry the ability of local routing to gateway in the step 502 and 503 of embodiment mono-, when service gateway discovering wireless side network element has the local routing ability, execution step 803,804 and 805, when service gateway discovering wireless side network element does not have the local routing ability, do not perform step 803,804 and 805.
In addition, in above-described embodiment four, in the situation that there is straight-through tunnel between gateway, whether S1 or not straight-through tunnel between gateway and the information on opposite end gateway (as gateway 2) while discharging.After terminal 1 enters Idle state, when the terminal 2 of opposite end sends packet to terminal 1, data will be issued gateway 1 through the straight-through tunnel between gateway, be triggered the paging of carrying out terminal 1 to Mobility Management Entity by gateway 1.
Fig. 9 shows the realization flow of the embodiment five of the straight-through tunnel establishing method of the present invention, and as shown in Figure 9, it provides the realization flow that carries out service request when terminal transfers connected state to by Idle state; Described embodiment five comprises the steps:
Step 901～902, terminal sends service request (NAS:SR) message through the wireless side network element to Mobility Management Entity.
Step 903, carry out Non-Access Stratum (Non-Access-Stratum, NAS) authentication process, and this step is optional.
Step 904, Mobility Management Entity sends initial context to the wireless side network element and sets up request message.
Step 905, the wireless side network element is carried out the radio bearer process of establishing.
Step 906, the wireless side network element is responded the Mobility Management Entity initial context and has been set up message.
Step 907, Mobility Management Entity sends revises bearing request message to gateway, the portability beared information.
Particularly, in this step, described beared information comprises user's face address of TEID and the wireless side network element of wireless side network element; Further, optional bearing identification, eNB UE S1AP ID and the Mobility Management Entity information of comprising also.
Step 908, gateway sends and revises carrying request, portability beared information to IAD.
Particularly, when the beared information received from Mobility Management Entity when gateway comprises bearing identification, eNB UE S1AP ID and Mobility Management Entity information, in this step, entrained beared information comprises bearing identification, eNB UE S1AP ID and Mobility Management Entity information;
When the beared information received from Mobility Management Entity when gateway does not comprise bearing identification, eNB UE S1AP ID and Mobility Management Entity information, in this step, entrained beared information comprises user's face address of TEID and the wireless side network element of wireless side network element.
Step 909, IAD is responded and is revised the carrying response to gateway.
Step 910, gateway is responded Mobility Management Entity and is revised bearing response message.
For simplified characterization, this embodiment only be take service request procedure and is described IAD as example and how to obtain beared information, in the situation of setting up carrying or switching in position updating process, similar with service request procedure, the wireless side network element also needs bearing identification, eNB UE S1AP ID and Mobility Management Entity information; Or user's face address of the TEID of wireless side network element and wireless side network element sends IAD to by Mobility Management Entity, gateway.
Figure 10 shows the realization flow of the embodiment six of the straight-through tunnel establishing method of the present invention, as shown in figure 10, the flow chart that provides terminal to carry out the X2 switching, the data before switching between terminal 1 and terminal 2 have been passed through the straight-through tunnel between wireless side network element 1 and wireless side network element 2; Described embodiment six comprises the steps:
Step 1001, when wireless side network element 1 finds that cell signal that terminal is current accessed is lower than predetermined threshold, initiate the X2 switching flow; Wireless side network element 1 is mutual with the wireless side network element 3 of its selection, completes preparation and the execution of X2 switching, and the radio bearer of terminal 1 is switched to wireless side network element 3 from wireless side network element 1.Now wireless side network element 1 can forward the data of terminal 1 to wireless side network element 3.
Step 1002, wireless side network element 3 is given Mobility Management Entity transmit path handover request message, and notification terminal 1 has switched, and carries the sign of wireless side network element 3 in message.
Step 1003, Mobility Management Entity sends and revises bearing request message, portability beared information in message to gateway.
Step 1004, gateway sends and revises bearing request message, portability beared information in message to IAD.
Step 1005, whether the IAD inspection needs to set up straight-through tunnel.If need to set up straight-through tunnel, perform step 1006, simultaneously in step 1006,1007 and 1008 message or similar Fig. 6 or embodiment illustrated in fig. 7 in wireless side net element information and the straight-through building tunnel relevant information of newly-increased message carried terminal 2, then perform step 1009 and 1010, do not carry out 1012 and 1013;
If do not need to set up straight-through tunnel, perform step 1006～1008, then carry out 1012 and 1013, do not carry out 1009 and 1010, wireless side net element information, straight-through building tunnel relevant information that simultaneously can carried terminal 2 in step 1006,1007 and 1008 message.
Step 1006, IAD is replied and is revised bearing response message.
Step 1007, gateway is replied and is revised bearing response message to Mobility Management Entity.
Step 1008, Mobility Management Entity is to wireless side network element 3 transmit path switching response message.
Step 1009, wireless side network element 3 sends straight-through tunnel updating message to wireless side network element 2, carry straight-through building tunnel relevant to client information.
Here, straight-through tunnel can be shunted based on carrying, also can be shunted based on application or IP stream, below this is elaborated:
1), in the situation that shunted based on carrying, need to set up the tunnel based on carrying between the wireless side network element.What now, the straight-through building tunnel described in this step was relevant is the straight-through building tunnel relevant information in above-mentioned steps 1006～1008 to client information.
2) in the situation that shunted based on application or IP stream, straight-through building tunnel relevant information in above-mentioned steps 1006～1008 is the optional TFT that carries local terminal and opposite end also, match radio bearer for downlink data, if set up the tunnel based on carrying between the wireless side network element, can not carry this TFT; Straight-through building tunnel relevant information is the optional strategy that carries local terminal and opposite end also, for upstream data, based on strategy, routes to straight-through tunnel or core network tunnels.Now, the information for opposite end in described straight-through building tunnel relevant information in situation about being shunted based on application or IP stream to client information that the straight-through building tunnel described in this step is relevant, as the strategy of TFT, opposite end, opposite end.
Step 1010, wireless side network element 2 is replied the response of straight-through tunnel.
Step 1011, wireless side network element 3 notice wireless side network elements 1 carry out resource release.
Particularly, when straight-through building tunnel unsuccessful, can notify in this step wireless side network element 1 to discharge straight-through tunnel, now wireless side network element 1 will be initiated to wireless side network element 2 releasing operation in straight-through tunnel, the step 809 and 810 of releasing operation and carry information similar embodiment four.
Step 1012, IAD sends the release indication of straight-through tunnel through the gateway of terminal 2, the Mobility Management Entity of terminal 2 to wireless side network element 2.
In addition, IAD also can send the release indication of straight-through tunnel to wireless side network element 2 through the gateway of terminal 2.
Step 1013, wireless side network element 2 is initiated straight-through tunnel to wireless side network element 1 and is discharged flow process, carries straight-through tunnel relevant information; Wireless side network element 1 is replied straight-through tunnel and is discharged response message;
Here, when described straight-through tunnel is based on the tunnel of carrying, sign ID or tunnel information that described straight-through tunnel relevant information arranges while being straight-through building tunnel; Otherwise described straight-through tunnel relevant information can comprise: the beared information of wireless side network element 2, as TEID and user's face address; Perhaps, bearing identification, eNB UE S1AP ID and Mobility Management Entity information.
Above-mentioned flow process has been described by signaling and has been triggered the mode that IAD leads directly to the tunnel inspection.The present embodiment also can adopt another mode to realize: in the time of switching, IAD does not carry out the judgement of step 1005, but initiate the release in straight-through tunnel by wireless side network element 1 to wireless side network element 2, after to be switched completing, IAD is done judgement and the foundation of leading directly to tunnel after receiving packet more again.
In above-described embodiment, it is basic identical that IAD obtains the embodiment mono-shown in beared information and Fig. 5, do not repeat them here.
Figure 11 shows the realization flow of the embodiment seven of the straight-through tunnel establishing method of the present invention, and as Figure 11 shows the process that terminal is carried out the S1 switching on the system shown in Figure 1 basis, described embodiment seven comprises the steps:
Step 1103, former Mobility Management Entity sends the forward RELOCATION REQUEST message to target mobility management entity.
Step 1104, target mobility management entity initiates to create the session request to the destination service gateway.
Step 1105, the destination service gateway is replied target mobility management entity and is created conversational response.
Step 1106, target mobility management entity sends handover request to wireless side network element 3.
Step 1107, wireless side network element 3 is responded handover request ack message to target mobility management entity.
Step 1108～1110, carry out indirect forwarding tunnel process of establishing.
Step 1112a-1112d, may carry out state transfer between wireless side network element 1 and wireless side network element 3.
Step 1115, the mutual forward reorientation of target mobility management entity and former Mobility Management Entity completes.
Step 1116, target mobility management entity sends and revises bearing request message, portability beared information in this message to the destination service gateway.
Step 1117, the destination service gateway sends and revises bearing request message, portability beared information in this message to IAD.
Step 1118, IAD check self maintained can be straight-through the list of wireless side network element, perform step 1119 when determining can set up straight-through tunnel the time; Otherwise IAD transmits straight-through tunnel to wireless side network element 2 and discharges indication, particularly, IAD can be transmitted to wireless side network element 2 through the gateway of terminal 2, the Mobility Management Entity of terminal 2; Perhaps IAD can be transmitted to wireless side network element 2 through the gateway of terminal 2; Wireless side network element 2 is initiated straight-through tunnel to wireless side network element 1 and is discharged flow process, carries straight-through tunnel relevant information.
Wherein, when the straight-through tunnel of setting up is based on the tunnel of carrying, sign ID or tunnel information that described straight-through building tunnel relevant information arranges in the time of can being also straight-through building tunnel, otherwise the straight-through tunnel of foundation will be based on the carrying rank.
Step 1119, IAD sends revises bearing response message to the destination service gateway.
Step 1120, the destination service gateway is replied and is revised the carrying response to target mobility management entity.
Step 1121, IAD transmits straight-through tunnel to wireless side network element 3 and upgrades indication;
Wherein, described straight-through tunnel upgrades indicates the wireless side net element information that comprises terminal 2, the Bear ID of terminal 1, straight-through building tunnel relevant information, the step 703 of the step 603 of load mode and embodiment bis-～605 or embodiment tri-～705 are similar, repeat no more.
Step 1122, wireless side network element 3 will send straight-through tunnels to wireless side network element 2 and upgrade, carry straight-through building tunnel relevant to client information.
Here, straight-through tunnel can be shunted based on carrying, also can be shunted based on application or IP stream, below this is elaborated:
1), in the situation that shunted based on carrying, need to set up the tunnel based on carrying between the wireless side network element.What now, the straight-through building tunnel described in this step was relevant is the straight-through building tunnel relevant information in above-mentioned steps 1118～1021 to client information.
2) in the situation that shunted based on application or IP stream, straight-through building tunnel relevant information in above-mentioned steps 1118～1121 is the optional TFT that carries local terminal and opposite end also, match radio bearer for downlink data, if set up the tunnel based on carrying between the wireless side network element, can not carry this TFT; Straight-through building tunnel relevant information is the optional strategy that carries local terminal and opposite end also, for upstream data, based on strategy, routes to straight-through tunnel or core network tunnels.Now, the information for opposite end in described straight-through building tunnel relevant information in situation about being shunted based on application or IP stream to client information that the straight-through building tunnel described in this step is relevant, as the strategy of TFT, opposite end, opposite end.
Step 1123, wireless side network element 3 returns to straight-through tunnel to IAD and upgrades response.
Step 1124, the executing location renewal process.Wherein, the renewal of described position can be tracing section updating, Routing Area Update etc.
Step 1125, carry out the resource dispose procedure.
Above-mentioned flow process has been described by signaling and has been triggered the mode that IAD leads directly to the tunnel inspection.The present embodiment also can adopt another mode to realize: in the time of switching, IAD does not carry out the judgement of step 1118, initiate the release in straight-through tunnel by wireless side network element 1 to wireless side network element 2, after to be switched completing, IAD is done judgement and the foundation of leading directly to tunnel after receiving packet more again.
In above-described embodiment, it is basic identical that IAD obtains the embodiment mono-shown in beared information and Fig. 5, do not repeat them here.
Embodiment mono-to seven take scene that IAD leads directly to tunnel judgement and set up tunnel between the wireless side network element to be described as example, at IAD, leads directly to the judgement in tunnel and in the situation that set up tunnel between gateway, is described below:
1) for straight-through building tunnel flow process, need to be by gateway information and the straight-through building tunnel relevant information of IAD 1 notification service gateway terminal 2, here, described straight-through building tunnel relevant information comprises TEID and user's face address of the gateway of opposite end; Or the bearing identification of the gateway of opposite end, chain of command TEID and control plane address; Initiate straight-through building tunnel by gateway 1 to gateway 2 (gateway of opposite end), and carry straight-through building tunnel relevant to client information.Specifically can it should be noted that now with reference to the embodiment bis-shown in figure 6 and Fig. 7 and three handling process, the wireless side network element is without participating in straight-through tunnel establishment procedure.
3) discharge flow process for S1, different from embodiment tetra-, receiving release access bearer request message from Mobility Management Entity at gateway 1, initiate straight-through tunnels to gateway 2 and discharge.
4), for handoff procedure, after IAD determines to need to set up straight-through tunnel, the notification service gateway is initiated straight-through building tunnel.Process is similar to above-mentioned Figure 10 and embodiment illustrated in fig. 11 six and embodiment seven, it should be noted that, be now to participate in straight-through tunnel establishment procedure without the wireless side network element, and the information of the straight-through building tunnel flow process of straight-through building tunnel relevant information similar above-mentioned " 1) " is described.
Lead directly to the judgement in tunnel and in the situation that set up tunnel between the wireless side network element, be described below at gateway:
1) for the PDN connection building process, similar with the embodiment mono-shown in Fig. 5, that is, can in step 512, carry beared information.Difference is, step 513 does not need to carry beared information, and step 513 and 514 optional execution.
2) for straight-through building tunnel flow process, with the embodiment bis-shown in Fig. 6 and Fig. 7 and embodiment tri-, process similar, difference is, after can setting up straight-through tunnel by gateway is definite, directly the execution step 604 or step 705 and separately after step, do not need to perform step 601～603 and step 611, and 701～704 and step 711.
3) for the service request flow process, carry out similar processing with the embodiment five shown in Fig. 9, that is, can in step 907, carry beared information.Difference is, step 908 does not need to carry beared information, and step 908 and the optional execution of step 909.
4) for switching flow, similar with the embodiment six shown in Figure 10 and Figure 11 and embodiment seven, but beared information only sends to gateway, and after leading directly to the tunnel inspection by gateway, notice wireless side network element leads directly to building tunnel and gets final product.
Should be appreciated that between any wireless side network element or the message between gateway can be transmitted by Mobility Management Entity, for example, optional two Mobility Management Entity carry out the transmission of message.
For simplified characterization, above embodiment only be take system shown in Figure 1 and the way to manage that local IP access connects is described as example.In other cases, for example, the UTRAN system, exist in the situation of home base-station gateway, still can carry out the foundation operation in straight-through tunnel as above.In these cases, to straight-through tunnel to set up mode similar to the aforementioned embodiment, can not impact setting forth the present invention, therefore no longer be repeated in this description at this.
In addition, in above embodiment, when between the straight-through and gateway between the wireless side network element lead directly in network and while depositing, now IAD need to check that straight-through between terminal 1 and terminal 2 is straight-through (being the straight-through tunnel between the wireless side network element) or straight-through (being the straight-through tunnel between gateway) on the gateway level on wireless side network element level, and according to check result, in the packet of the straight-through building tunnel of straight-through building tunnel indication/trigger (being specifically as follows indication/packet that indication/packet that IAD sends to gateway or gateway send to Mobility Management Entity or wireless side network element), clearly indication is that notice wireless side network element or notification service gateway are set up straight-through tunnel.If the notification service gateway is straight-through, after message is dealt into gateway, gateway no longer sends to the wireless side network element, otherwise gateway need to be transmitted to the wireless side network element again.Perhaps, IAD can clearly not indicated in the packet of the straight-through building tunnel of straight-through building tunnel indication/triggering yet, but adopt same straight-through building tunnel indication/triggering to lead directly to the packet of building tunnel, whether the network element inspection self of receiving this indication/packet has satisfactory straight-through building tunnel, if having, sets up relevant straight-through tunnel.
The present invention also provides a kind of system that realizes above-mentioned straight-through tunnel establishing method, and described system comprises: the first network element and the second network element; Wherein,
Described the first network element, after the straight-through building tunnel relevant information that receives opposite end, initiate the foundation in straight-through tunnel to the second network element of opposite end.
Wherein, described the first network element or the second network element are wireless side network element or gateway.
Wherein, described wireless side network element comprises base station, base station from home, home base-station gateway, RNC, data distribution functional entity;
Described gateway comprises generic services gateway, SGSN.
Further, described system also comprises: Mobility Management Entity, IAD; Wherein,
Described Mobility Management Entity, when initially accessing, send beared information to IAD for terminal; Wherein, described beared information comprises user's face address of TEID and the wireless side network element of wireless side network element; Perhaps, described beared information comprises bearing identification, eNB UE S1AP ID and Mobility Management Entity information; Described bearing identification comprises RAB ID or E-RAB ID.
Wherein, described IAD, for obtaining the destination address of the message of receiving, when the terminal of judging described destination address is when service is provided self, transmission includes the straight-through building tunnel indication of straight-through building tunnel relevant information, or builds the packet that triggers straight-through building tunnel and send; Wherein, described packet comprises straight-through building tunnel relevant information.
Wherein, described IAD can be P-GW, common IAD or Gateway GPRS Support Node (Gateway GPRS Support Node, GGSN).
Described Mobility Management Entity can be MME, mobile switching centre (Mobile Switching Centre, MSC), SGSN, home base-station gateway.
Wherein, described straight-through building tunnel relevant information comprises TEID and the wireless side network element of opposite end or user's face address of gateway of wireless side network element or the service network element of opposite end; Perhaps, the bearing identification, eNB UE S1AP ID and the Mobility Management Entity information that comprise opposite end; Perhaps, the bearing identification, chain of command TEID and the control plane address that comprise the gateway of opposite end.
It can be tracing section updating, Routing Area Update that position is upgraded.
Wherein, described the first network element, specifically for judge described the second network element self maintained can be straight-through the list of wireless side network element the time, send straight-through building tunnel request message to described the second network element;
Described the second network element, after receiving described straight-through building tunnel request message, send straight-through building tunnel response message to described the first network element.
Further, described the first network element, also, for when the radio bearer that needs the release terminal being detected, send straight-through tunnel release message to described the second network element;
Described the second network element, also for after receiving described straight-through tunnel release message, delete corresponding straight-through tunnel information, and the straight-through tunnel of reply discharges response;
Wherein, described straight-through tunnel release message carries straight-through tunnel relevant information, sign ID or tunnel information that described straight-through tunnel relevant information arranges while comprising straight-through building tunnel; Perhaps, the beared information of the wireless side network element of opposite end, described beared information comprises user's face address of TEID and the wireless side network element of wireless side network element; Perhaps, comprise bearing identification, eNB UE S1AP ID and Mobility Management Entity information.
The above, be only preferred embodiment of the present invention, is not intended to limit protection range of the present invention.
Claims (18)
1. a straight-through tunnel establishing method, is characterized in that, described method comprises:
After the first network element receives the straight-through building tunnel relevant information of opposite end, initiate the foundation in straight-through tunnel to the second network element of opposite end.
2. method according to claim 1, is characterized in that, described the first network element or the second network element are wireless side network element or gateway.
3. method according to claim 2, is characterized in that, described wireless side network element comprises base station, base station from home, home base-station gateway, radio network controller (RNC), data distribution functional entity;
Described gateway comprises generic services gateway, Serving GPRS Support Node SGSN.
4. method according to claim 1, is characterized in that, described method also comprises:
Terminal is when initial access, and the Mobility Management Entity of described terminal sends beared information to IAD; Wherein, described beared information comprises user's face address of termination point of a tunnel identifier TEID and the wireless side network element of wireless side network element; Perhaps, described beared information comprises bearing identification, eNB UE S1AP ID and Mobility Management Entity information.
5. method according to claim 1, is characterized in that, before described the first network element receives the straight-through building tunnel relevant information of opposite end, described method also comprises:
IAD obtains the destination address of the message of receiving, when the terminal of judging described destination address is when service is provided self, sends the straight-through building tunnel indication that includes straight-through building tunnel relevant information; Perhaps,
IAD obtains the destination address of the message of receiving, when the terminal of judging described destination address is when service is provided self, builds the packet that triggers straight-through building tunnel and sends, and wherein, described packet comprises straight-through building tunnel relevant information.
6. method according to claim 1, is characterized in that, described straight-through building tunnel relevant information comprises TEID and the wireless side network element of opposite end or user's face address of gateway of wireless side network element or the service network element of opposite end; Perhaps, the bearing identification, eNB UE S1 AP ID and the Mobility Management Entity information that comprise opposite end; Perhaps, the bearing identification, chain of command TEID and the control plane address that comprise the gateway of opposite end.
7. method according to claim 1, is characterized in that, the first network element is initiated being established as of straight-through tunnel to the second network element of opposite end:
The first network element judge described the second network element self maintained can be straight-through the list of wireless side network element the time, send straight-through building tunnel request message to described the second network element;
After described the second network element receives described straight-through building tunnel request message, to described the first network element, send straight-through building tunnel response message.
8. method according to claim 1, is characterized in that, described method also comprises:
When the first network element detects the radio bearer that needs the release terminal, to the second straight-through tunnel of network element transmission release message of opposite end;
Described the second network element is deleted corresponding straight-through tunnel information, and the straight-through tunnel of reply discharges response;
Wherein, described straight-through tunnel release message carries straight-through tunnel relevant information, sign ID or tunnel information that described straight-through tunnel relevant information arranges while comprising straight-through building tunnel; Perhaps, the beared information of the wireless side network element of opposite end;
Described beared information comprises user's face address of TEID and the wireless side network element of wireless side network element; Perhaps, comprise bearing identification, eNB UE S1 AP ID and Mobility Management Entity information.
9. according to claim 4 or 6 or 8 described methods, it is characterized in that, described bearing identification comprises wireless access bearing sign symbol RAB ID or strengthens wireless access bearing sign symbol E-RAB ID.
10. a straight-through building tunnel system, is characterized in that, described system comprises: the first network element and the second network element; Wherein,
Described the first network element, after the straight-through building tunnel relevant information that receives opposite end, initiate the foundation in straight-through tunnel to the second network element of opposite end.
11. system according to claim 10, is characterized in that, described the first network element or the second network element are wireless side network element or gateway.
12. system according to claim 11, is characterized in that, described wireless side network element comprises base station, base station from home, home base-station gateway, RNC, data distribution functional entity;
Described gateway comprises generic services gateway, SGSN.
13. system according to claim 10, is characterized in that, described system also comprises: Mobility Management Entity, IAD; Wherein,
Described movement, to management entity, when initially accessing, sends beared information to IAD for terminal; Wherein, described beared information comprises user's face address of TEID and the wireless side network element of wireless side network element; Perhaps, described beared information comprises bearing identification, eNB UE S1 AP ID and Mobility Management Entity information.
14. system according to claim 10, it is characterized in that, described IAD, for obtaining the destination address of the message of receiving, when the terminal of judging described destination address is when service is provided self, transmission includes the straight-through building tunnel indication of straight-through building tunnel relevant information, or builds the packet that triggers straight-through building tunnel and send; Wherein, described packet comprises straight-through building tunnel relevant information.
15. system according to claim 10, is characterized in that, described straight-through building tunnel relevant information comprises TEID and the wireless side network element of opposite end or user's face address of gateway of wireless side network element or the service network element of opposite end; Perhaps, the bearing identification, eNB UE S1 AP ID and the Mobility Management Entity information that comprise opposite end; Perhaps, the bearing identification, chain of command TEID and the control plane address that comprise the gateway of opposite end.
16. system according to claim 10, is characterized in that, described the first network element, specifically for judge described the second network element self maintained can be straight-through the list of wireless side network element the time, send straight-through building tunnel request message to described the second network element;
Described the second network element, after receiving described straight-through building tunnel request message, send straight-through building tunnel response message to described the first network element.
17. system according to claim 10, is characterized in that, described the first network element also, for when the radio bearer that needs the release terminal being detected, sends straight-through tunnel release message to described the second network element;
Described the second network element, also for after receiving described straight-through tunnel release message, delete corresponding straight-through tunnel information, and the straight-through tunnel of reply discharges response;
Wherein, described straight-through tunnel release message carries straight-through tunnel relevant information, sign ID or tunnel information that described straight-through tunnel relevant information arranges while comprising straight-through building tunnel; Perhaps, the beared information of the wireless side network element of opposite end;
Described beared information comprises user's face address of TEID and the wireless side network element of wireless side network element; Perhaps, comprise bearing identification, eNB UE S1 AP ID and Mobility Management Entity information.
18. according to claim 13 or 15 or 17 described systems, it is characterized in that, described bearing identification comprises RAB ID or E-RAB ID.
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| CN107409342B (en) * | 2015-02-23 | 2020-12-29 | 富士通株式会社 | Wireless communication system, communication device, terminal, and base station |
| CN107409342A (en) * | 2015-02-23 | 2017-11-28 | 富士通株式会社 | Wireless communication system, communicator, terminal and base station |
| CN105634980B (en) * | 2016-01-07 | 2018-10-12 | 北京佰才邦技术有限公司 | Data message processing method and base station |
| CN105634980A (en) * | 2016-01-07 | 2016-06-01 | 北京佰才邦技术有限公司 | Data message processing method and base station |
| CN106506397A (en) * | 2017-01-11 | 2017-03-15 | 中磊电子（苏州）有限公司 | A kind of Point-to-point Communication Method and its relevant apparatus |
| CN107294867A (en) * | 2017-01-11 | 2017-10-24 | 中磊电子（苏州）有限公司 | A kind of method and its relevant apparatus to facilitate point-to-point communication |
| US10368388B2 (en) | 2017-01-11 | 2019-07-30 | Sercomm Corporation | Method for peer to peer communication and related communication device |
| CN107294867B (en) * | 2017-01-11 | 2020-12-11 | 中磊电子（苏州）有限公司 | Method and apparatus for facilitating peer-to-peer communication |
| CN108965088A (en) * | 2017-05-25 | 2018-12-07 | 中兴通讯股份有限公司 | Create the method and device in static tunnel |
| CN108965088B (en) * | 2017-05-25 | 2021-11-30 | 中兴通讯股份有限公司 | Method and device for establishing static tunnel |
| CN109275172A (en) * | 2017-07-18 | 2019-01-25 | 华为技术有限公司 | Communication lines by method for building up, device, computer storage medium and system |
| CN109275172B (en) * | 2017-07-18 | 2021-07-16 | 华为技术有限公司 | Method, device, computer storage medium and system for establishing communication route |
| WO2023155145A1 (en) * | 2022-02-18 | 2023-08-24 | Zte Corporation | Method for edge computing |
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