CN110139394B - Method for accessing different operators and convergence gateway - Google Patents
Method for accessing different operators and convergence gateway Download PDFInfo
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- CN110139394B CN110139394B CN201910492968.3A CN201910492968A CN110139394B CN 110139394 B CN110139394 B CN 110139394B CN 201910492968 A CN201910492968 A CN 201910492968A CN 110139394 B CN110139394 B CN 110139394B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H04W88/16—Gateway arrangements
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Abstract
The embodiment of the invention discloses a method for accessing different operators and a convergence gateway, which are used for selecting a corresponding target EPC according to at least one information of PLMN and TAC in an attachment request sent by terminal equipment, thereby realizing the function of accessing different operators. The method provided by the embodiment of the invention comprises the following steps: the convergence gateway receives an attachment request sent by terminal equipment, wherein the attachment request comprises at least one information of PLMN and TAC; the convergence gateway matches a corresponding target EPC in a preset EPC pool according to at least one information in the PLMN and the TAC; if the convergence gateway is matched with the target EPC, the convergence gateway associates the identifier of the terminal equipment with the identifier of the target EPC; the convergence gateway determines a corresponding target security gateway according to the target EPC; the convergence gateway determines a corresponding target Ipsec channel according to the target security gateway; the convergence gateway establishes a mapping table about the identity of the terminal device, the identity of the target EPC, the target security gateway and the target Ipsec tunnel, wherein different operators correspond to different EPCs.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method for accessing different operators and a convergence gateway.
Background
The small base station is a small-sized base station which can be installed indoors and is flexible in configuration; accessing a fixed broadband network into an operator core network as a backhaul; the problem of weak indoor coverage of 5G network signals can be well solved, and high-quality signal coverage in a small range is provided.
The existing small base station access gateway is generally erected in a central machine room of an operator and has two functions of a security gateway and a signaling gateway. The signaling gateway converges an S1 interface signaling plane, so as to reduce signaling pressure on a Mobility Management Entity (MME); the security gateway carries out bidirectional authentication on the small base station equipment, ensures the information security of the transmission channel, and can realize the convergence of the S1 interface user plane.
Fig. 1 is a schematic view of an application scenario of a small base station in the prior art. However, the existing small base station access gateway has a large capacity, is generally placed in a central machine room of an operator, can only access to the small station of the operator, cannot access to the small stations of other operators, and cannot be deployed or expanded quickly and flexibly.
Disclosure of Invention
The embodiment of the invention provides a method for accessing different operators and a convergence gateway, which are used for selecting a corresponding target EPC according to at least one information of PLMN and TAC in an attachment request sent by terminal equipment, thereby realizing the function of accessing different operators.
In view of this, a first aspect of the present invention provides a method for a convergence gateway to access different operators, which may include:
the convergence gateway receives an attachment request sent by terminal equipment, wherein the attachment request comprises at least one information of PLMN and TAC;
the convergence gateway matches a corresponding target EPC in a preset EPC pool according to at least one information of the PLMN and the TAC;
if the convergence gateway is matched with the target EPC, the convergence gateway associates the identifier of the terminal equipment with the identifier of the target EPC;
the convergence gateway determines a corresponding target security gateway according to the target EPC;
the convergence gateway determines a corresponding target Ipsec channel according to the target security gateway;
the convergence gateway establishes a mapping table for the identity of the terminal device, the identity of the target EPC, the target security gateway and the target Ipsec tunnel, wherein different operators correspond to different EPCs.
Optionally, in some embodiments of the present invention, the method further includes:
the convergence gateway receives an access request sent by the terminal equipment, wherein the access request comprises an identifier of the terminal equipment;
the convergence gateway searches and obtains the identifier of the target EPC, the target security gateway and the target Ipsec channel in the mapping table according to the identifier of the terminal equipment;
the convergence gateway accesses the target EPC through the target security gateway and the target Ipsec channel.
Optionally, in some embodiments of the present invention, the method further includes:
if the convergence gateway does not match the target EPC, the convergence gateway determines to reject the response;
and the convergence gateway sends the rejection response to the terminal equipment, wherein the rejection response is used for indicating that the terminal equipment is not successfully accessed.
Optionally, in some embodiments of the present invention, the determining, by the convergence gateway, a corresponding target Ipsec channel according to the target security gateway includes:
and the convergence gateway determines a corresponding target Ipsec channel according to the target security gateway and a preset algorithm.
A second aspect of the present invention provides a convergence gateway, which may include:
the terminal equipment comprises a transceiving module, a receiving and sending module and a processing module, wherein the transceiving module is used for receiving an attachment request sent by the terminal equipment, and the attachment request comprises at least one information of a Public Land Mobile Network (PLMN) and a Tracking Area Code (TAC);
the processing module is used for matching a corresponding target EPC in a preset EPC pool according to at least one information of the PLMN and the TAC; if the convergence gateway is matched with the target EPC, the convergence gateway associates the identifier of the terminal equipment with the identifier of the target EPC; determining a corresponding target security gateway according to the target EPC; determining a corresponding target Ipsec channel according to the target security gateway; establishing a mapping table for the identity of the end device, the identity of the target EPC, the target security gateway and the target Ipsec tunnel, wherein different operators correspond to different EPCs.
Alternatively, in some embodiments of the present invention,
the transceiver module is further configured to receive an access request sent by the terminal device, where the access request includes an identifier of the terminal device;
the processing module is further configured to search the mapping table according to the identifier of the terminal device to obtain the identifier of the target EPC, the target security gateway, and the target Ipsec channel; the target EPC is accessed through the target security gateway and the target Ipsec channel.
Alternatively, in some embodiments of the present invention,
the processing module is further configured to determine to reject a response if the convergence gateway does not match the target EPC;
the transceiver module is further configured to send the reject response to the terminal device, where the reject response is used to indicate that the terminal device is not successfully accessed.
Alternatively, in some embodiments of the present invention,
the processing module is specifically configured to determine a corresponding target Ipsec channel according to the target security gateway and a preset algorithm.
A third aspect of the present invention provides a convergence gateway, which may include:
a transceiver, a processor, and a memory, wherein the transceiver, the processor, and the memory are connected by a bus;
the memory is used for storing operation instructions;
the transceiver is used for receiving an attachment request sent by a terminal device, wherein the attachment request comprises at least one of information of a Public Land Mobile Network (PLMN) and a Tracking Area Code (TAC);
the processor is used for calling the operation instruction and matching a corresponding target EPC in a preset EPC pool according to at least one information of the PLMN and the TAC; if the convergence gateway is matched with the target EPC, the convergence gateway associates the identifier of the terminal equipment with the identifier of the target EPC; determining a corresponding target security gateway according to the target EPC; determining a corresponding target Ipsec channel according to the target security gateway; establishing a mapping table for the identity of the end device, the identity of the target EPC, the target security gateway and the target Ipsec tunnel, wherein different operators correspond to different EPCs.
Alternatively, in some embodiments of the present invention,
the transceiver is further configured to receive an access request sent by the terminal device, where the access request includes an identifier of the terminal device;
the processor is further configured to search the mapping table according to the identifier of the terminal device to obtain the identifier of the target EPC, the target security gateway, and the target Ipsec channel; the target EPC is accessed through the target security gateway and the target Ipsec channel.
Alternatively, in some embodiments of the present invention,
the processor is further configured to determine to reject a response if the convergence gateway does not match the target EPC;
the transceiver is further configured to send the reject response to the terminal device, where the reject response is used to indicate that the terminal device has not successfully accessed.
Alternatively, in some embodiments of the present invention,
the processor is specifically configured to determine a corresponding target Ipsec channel according to the target security gateway and a preset algorithm.
A fourth aspect of the present invention provides a convergence gateway, which may include: a readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for a convergence gateway to access different operators as described in the first aspect of the present invention and any one of the alternative implementations of the first aspect.
According to the technical scheme, the embodiment of the invention has the following advantages:
in the embodiment of the invention, a convergence gateway receives an attachment request sent by a terminal device, wherein the attachment request comprises at least one information of PLMN and TAC; the convergence gateway matches a corresponding target EPC in a preset EPC pool according to at least one information of the PLMN and the TAC; if the convergence gateway is matched with the target EPC, the convergence gateway associates the identifier of the terminal equipment with the identifier of the target EPC; the convergence gateway determines a corresponding target security gateway according to the target EPC; the convergence gateway determines a corresponding target Ipsec channel according to the target security gateway; the convergence gateway establishes a mapping table for the identity of the terminal device, the identity of the target EPC, the target security gateway and the target Ipsec tunnel, wherein different operators correspond to different EPCs. The convergence gateway can match a corresponding target EPC in a preset EPC pool according to at least one information of PLMN and TAC included in an attachment request carried by the terminal equipment, thereby realizing the function of accessing the convergence gateway to different operators, having high integration level of the access gateway and flexible and convenient deployment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the embodiments and the drawings used in the description of the prior art, and obviously, the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained according to the drawings.
Fig. 1 is a schematic view of an application scenario of a small base station in the prior art;
fig. 2 is a schematic diagram of an embodiment of a method for a convergence gateway to access different operators in an embodiment of the present invention;
fig. 3 is a schematic diagram of an application scenario of a convergence gateway in an embodiment of the present invention;
fig. 4 is a schematic diagram of an embodiment of a convergence gateway in an embodiment of the invention;
fig. 5 is a schematic diagram of another embodiment of the convergence gateway in the embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a method for accessing different operators and access network equipment, which are used for selecting a corresponding target EPC according to at least one information of PLMN and TAC in an attachment request sent by terminal equipment, thereby realizing the function of accessing different operators.
In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. The embodiments based on the present invention should fall into the protection scope of the present invention.
With the large-scale application of the small base station system, various standards of small stations can be accessed, and an intelligent access technology for automatically selecting operators becomes more and more necessary. The multi-operator intelligent access technology realized by the patent can enable the 5G small stations to automatically access different operators according to respective configurations, and provides safe and flexible access, signaling convergence and data forwarding intelligent bridge functions for the small stations. The access gateway of the small base station has high integration level and flexible and convenient deployment, and the small base stations of different operators can be respectively accessed to different operators.
The access network device may be an LTE system, a Next Radio (NR) system, or an evolved Node B (evolved Node B, which may be referred to as eNB or e-NodeB) macro base station, a micro base station (also referred to as a "small base station"), a pico base station, an Access Point (AP), a Transmission Point (TP), a new generation base station (new generation Node B, gNodeB), or the like in an authorized assisted access long term evolution (LAA-LTE) system.
A terminal device may be referred to as a User Equipment (UE), a Mobile Station (MS), a mobile terminal (mobile terminal), an intelligent terminal, and the like, and the terminal device may communicate with one or more core networks through a Radio Access Network (RAN). For example, the terminal equipment may be a mobile phone (or so-called "cellular" phone), a computer with a mobile terminal, etc., and the terminal equipment may also be a portable, pocket, hand-held, computer-included or vehicle-mounted mobile device and terminal equipment in future NR networks, which exchange voice or data with a radio access network.
The following further describes the technical solution of the present invention by way of an embodiment, as shown in fig. 2, which is a schematic diagram of an embodiment of a method for a convergence gateway to access different operators in the embodiment of the present invention, and the method may include:
201. the convergence gateway receives an attachment request sent by a terminal device, wherein the attachment request comprises at least one information of PLMN and TAC.
In the embodiment of the invention, the convergence gateway receives an attachment request sent by a terminal device, wherein the attachment request comprises at least one information of PLMN and TAC.
Among them, Public Land Mobile Network (PLMN), Tracking Area Code (TAC).
It will be appreciated that the convergence gateway receives the attach request sent by the terminal device via an access network device (e.g., a small cell site).
The convergence gateway may perform Cell identification (Cell ID) mapping. E-UTRAN Cell Identifier, ECI (28Bits) ═ eNB ID + Cell ID, eNB ID 256+ Cell ID ═ Cell number.
The unique identifier of the macro station is cell ID, occupies 28bits, the first 20 bits are the same as eNB ID, at most 256 cells exist, the eNB ID and the cell ID of the HeNB are both 28bits, the HeNB GW appears as the macro station from the MME, and the HeNB is a cell.
And mapping the UE from the Cell ID on the SmallCell band to the IAG access operator core network Cell ID.
Illustratively, a small base station and an intelligent bridge (SmartBridge), that is, a convergence gateway in the embodiment of the present invention, establish an S1 channel, where the terminal initiates an attach signaling, and the SmartBridge parses the signaling to extract a PLMN and a TAC therein after receiving the terminal attach signaling.
202. And the convergence gateway matches a corresponding target EPC in a preset EPC pool according to at least one information of the PLMN and the TAC.
Fig. 3 is a schematic view of an application scenario of the convergence gateway in the embodiment of the present invention. In the illustration of fig. 3, SmartBridge provides mainly the following functions: controlling access of SeGW; S1-MME aggregation; S1-U forwarding; S1-Flex; small Cell management.
In fig. 3, the chinese translation and english nomenclature corresponding to the english abbreviation involved are as follows:
time Division Duplexing (TDD);
frequency Division Duplexing (FDD);
an Evolved Packet Core (EPC), which is mainly composed of network elements such as an MME, an SGW, a PGW, and a PCRF. Wherein:
MME: mobility Management Entity, control plane function of SGSN network element in original 3G network;
SGW: serving Gateway, a user plane function of an SGSN network element in the original 3G network, sometimes written as S-GW;
PGW: PDN Gateway, the function of GGSN network element in the original 3G network, sometimes also written as P-GW;
PCRF: policy and Charging Rules Function, completing the Policy and Charging control of user data message.
HMS: home eNodeB Management System, Home base station Management System;
ISP: internet Service Provider, Internet Service Provider;
SeGW: security Gateway, Security Gateway;
FW, Forwarding, forward;
AAA, Authentication/Authorization/Accounting, Authentication/Authorization/charging;
EPC, Evolved Packet Core.
Illustratively, the convergence gateway matches the operator EPC from MME Pool according to the extracted PLMN/TAC, SmartBridge.
203. And if the convergence gateway is matched with the target EPC, associating the identifier of the terminal equipment with the identifier of the target EPC.
And if the convergence gateway is matched with the target EPC, associating the identifier of the terminal equipment with the identifier of the target EPC.
Optionally, if the convergence gateway does not match the target EPC, the convergence gateway determines to reject the response; and the convergence gateway sends the rejection response to the terminal equipment, wherein the rejection response is used for indicating that the terminal equipment is not successfully accessed.
Illustratively, if the matching cannot be performed, the UE is denied access, and there may be a case that the small cell configuration data does not match the SmartBridge. If an EPC can be matched, the EPC ID is recorded and bound with the UE ID, and all subsequent signaling will be retrieved directly to and communicated with the operator EPC by the UE ID.
204. And the convergence gateway determines a corresponding target service gateway according to the target EPC.
205. And the convergence gateway determines a corresponding target Ipsec channel according to the target service gateway.
The convergence gateway determines a corresponding target Ipsec channel according to the target security gateway, including: and the convergence gateway determines a corresponding target Ipsec channel according to the target security gateway and a preset algorithm.
It should be noted that accessing different operators may need to go through different Ipsec channels, which may be retrieved by retrieving the EPC and the Ipsec channel correspondence information base.
206. The convergence gateway establishes a mapping table for the identity of the terminal device, the identity of the target EPC, the target security gateway and the target Ipsec tunnel, wherein different operators correspond to different EPCs.
The convergence gateway establishes a mapping table for the identity of the terminal device, the identity of the target EPC, the target security gateway and the target Ipsec tunnel, wherein different operators correspond to different EPCs. It is understood that the mapping table includes mappings of a plurality of end devices with corresponding EPCs, and security gateways and Ipsec channels.
Alternatively, in some embodiments of the present invention,
the convergence gateway receives an access request sent by the terminal equipment, wherein the access request comprises an identifier of the terminal equipment;
the convergence gateway searches and obtains the identifier of the target EPC, the target security gateway and the target Ipsec channel in the mapping table according to the identifier of the terminal equipment;
the convergence gateway accesses the target EPC through the target security gateway and the target Ipsec channel.
In the embodiment of the invention, a convergence gateway receives an attachment request sent by a terminal device, wherein the attachment request comprises at least one information of PLMN and TAC; the convergence gateway matches a corresponding target EPC in a preset EPC pool according to at least one information of the PLMN and the TAC; if the convergence gateway is matched with the target EPC, the convergence gateway associates the identifier of the terminal equipment with the identifier of the target EPC; the convergence gateway determines a corresponding target security gateway according to the target EPC; the convergence gateway determines a corresponding target Ipsec channel according to the target security gateway; the convergence gateway establishes a mapping table for the identity of the terminal device, the identity of the target EPC, the target security gateway and the target Ipsec tunnel, wherein different operators correspond to different EPCs. The convergence gateway can match a corresponding target EPC in a preset EPC pool according to at least one information of PLMN and TAC included in an attachment request carried by the terminal equipment, thereby realizing the function of accessing the convergence gateway to different operators, having high integration level of the access gateway and flexible and convenient deployment. Selection may be automatic by EPC, based on PLMN/TAC selection.
As shown in fig. 4, which is a schematic diagram of an embodiment of a convergence gateway in the embodiment of the present invention, the schematic diagram may include:
a transceiver module 401, configured to receive an attach request sent by a terminal device, where the attach request includes at least one information of a PLMN and a TAC;
a processing module 402, configured to match a corresponding target EPC in a preset EPC pool according to at least one information of the PLMN and the TAC; if the convergence gateway is matched with the target EPC, the convergence gateway associates the identifier of the terminal equipment with the identifier of the target EPC; determining a corresponding target security gateway according to the target EPC; determining a corresponding target Ipsec channel according to the target security gateway; establishing a mapping table for the identity of the end device, the identity of the target EPC, the target security gateway and the target Ipsec tunnel, wherein different operators correspond to different EPCs.
Alternatively, in some embodiments of the present invention,
the transceiver module 401 is further configured to receive an access request sent by the terminal device, where the access request includes an identifier of the terminal device;
the processing module 402 is further configured to find, according to the identifier of the terminal device, the identifier of the target EPC, the target security gateway, and the target Ipsec channel in the mapping table; the target EPC is accessed through the target security gateway and the target Ipsec channel.
Alternatively, in some embodiments of the present invention,
a processing module 402, configured to determine to reject a response if the convergence gateway does not match the target EPC;
the transceiver module 401 is further configured to send the reject response to the terminal device, where the reject response is used to indicate that the terminal device has not successfully accessed.
Alternatively, in some embodiments of the present invention,
the processing module 402 is specifically configured to determine a corresponding target Ipsec channel according to the target security gateway and a preset algorithm.
As shown in fig. 5, which is a schematic diagram of an embodiment of a convergence gateway in the embodiment of the present invention, the schematic diagram may include:
the system comprises a transceiver 501, a processor 502 and a memory 503, wherein the transceiver 501, the processor 502 and the memory 503 are connected through a bus;
a memory 503 for storing operation instructions;
a transceiver 501, configured to receive an attach request sent by a terminal device, where the attach request includes at least one information of a PLMN and a TAC;
a processor 502, configured to invoke the operation instruction, and match a corresponding target EPC in a preset EPC pool according to at least one information in the PLMN and the TAC; if the convergence gateway is matched with the target EPC, the convergence gateway associates the identifier of the terminal equipment with the identifier of the target EPC; determining a corresponding target security gateway according to the target EPC; determining a corresponding target Ipsec channel according to the target security gateway; establishing a mapping table for the identity of the end device, the identity of the target EPC, the target security gateway and the target Ipsec tunnel, wherein different operators correspond to different EPCs.
Alternatively, in some embodiments of the present invention,
the transceiver 501 is further configured to receive an access request sent by the terminal device, where the access request includes an identifier of the terminal device;
the processor 502 is further configured to find, according to the identifier of the terminal device, an identifier of the target EPC, the target security gateway, and the target Ipsec channel in the mapping table; the target EPC is accessed through the target security gateway and the target Ipsec channel.
Alternatively, in some embodiments of the present invention,
a processor 502, further configured to determine to reject a response if the convergence gateway does not match the target EPC;
the transceiver 501 is further configured to send the reject response to the terminal device, where the reject response is used to indicate that the terminal device has not successfully accessed.
Alternatively, in some embodiments of the present invention,
processor 502 is specifically configured to determine a corresponding destination Ipsec channel based on the destination security gateway and a preset algorithm.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product.
The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for accessing different operators, comprising:
the convergence gateway receives an attachment request sent by a terminal device, wherein the attachment request comprises at least one information of a Public Land Mobile Network (PLMN) and a Tracking Area Code (TAC);
the convergence gateway matches a corresponding target Evolved Packet Core (EPC) in a preset EPC pool according to at least one information of the PLMN and the TAC;
if the convergence gateway is matched with the target EPC, the convergence gateway associates the identifier of the terminal equipment with the identifier of the target EPC;
the convergence gateway determines a corresponding target security gateway according to the target EPC;
the convergence gateway determines a corresponding target Ipsec channel according to the target security gateway;
the convergence gateway establishes a mapping table for the identity of the terminal device, the identity of the target EPC, the target security gateway and the target Ipsec tunnel, wherein different operators correspond to different EPCs.
2. The method of claim 1, further comprising:
the convergence gateway receives an access request sent by the terminal equipment, wherein the access request comprises an identifier of the terminal equipment;
the convergence gateway searches and obtains the identifier of the target EPC, the target security gateway and the target Ipsec channel in the mapping table according to the identifier of the terminal equipment;
the convergence gateway accesses the target EPC through the target security gateway and the target Ipsec channel.
3. The method according to claim 1 or 2, characterized in that the method further comprises:
if the convergence gateway does not match the target EPC, the convergence gateway determines to reject the response;
and the convergence gateway sends the rejection response to the terminal equipment, wherein the rejection response is used for indicating that the terminal equipment is not successfully accessed.
4. The method of claim 1 or 2, wherein the determining, by the convergence gateway and from the target security gateways, a corresponding target Ipsec channel comprises:
and the convergence gateway determines a corresponding target Ipsec channel according to the target security gateway and a preset algorithm.
5. A convergence gateway, comprising:
the terminal equipment comprises a transceiving module, a receiving and sending module and a processing module, wherein the transceiving module is used for receiving an attachment request sent by the terminal equipment, and the attachment request comprises at least one information of a Public Land Mobile Network (PLMN) and a Tracking Area Code (TAC); the processing module is used for matching a corresponding target Evolved Packet Core (EPC) in a preset EPC pool according to at least one information of the PLMN and the TAC; if the convergence gateway is matched with the target EPC, the convergence gateway associates the identifier of the terminal equipment with the identifier of the target EPC; determining a corresponding target security gateway according to the target EPC; determining a corresponding target Ipsec channel according to the target security gateway; establishing a mapping table for the identity of the end device, the identity of the target EPC, the target security gateway and the target Ipsec tunnel, wherein different operators correspond to different EPCs.
6. The convergence gateway of claim 5 wherein,
the transceiver module is further configured to receive an access request sent by the terminal device, where the access request includes an identifier of the terminal device;
the processing module is further configured to search the mapping table according to the identifier of the terminal device to obtain the identifier of the target EPC, the target security gateway, and the target Ipsec channel; the target EPC is accessed through the target security gateway and the target Ipsec channel.
7. The convergence gateway of claim 5 or 6 wherein,
the processing module is further configured to determine to reject a response if the convergence gateway does not match the target EPC;
the transceiver module is further configured to send the reject response to the terminal device, where the reject response is used to indicate that the terminal device is not successfully accessed.
8. The convergence gateway of claim 5 or 6 wherein,
the processing module is specifically configured to determine a corresponding target Ipsec channel according to the target security gateway and a preset algorithm.
9. A convergence gateway, comprising:
a transceiver, a processor, and a memory, wherein the transceiver, the processor, and the memory are connected by a bus;
the memory is used for storing operation instructions;
the transceiver is used for receiving an attachment request sent by a terminal device, wherein the attachment request comprises at least one of information of a Public Land Mobile Network (PLMN) and a Tracking Area Code (TAC); the processor, configured to invoke the operation instruction, and execute the steps of the method for accessing different operators by the convergence gateway according to any one of claims 1 to 4.
10. A computer-readable storage medium, having stored thereon a computer program, the computer program, when being executed by a processor, implementing the steps of a method for a convergence gateway to access different operators according to any of the claims 1-4.
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