CN111698793B - Communication method and device - Google Patents
Communication method and device Download PDFInfo
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- CN111698793B CN111698793B CN201910199734.XA CN201910199734A CN111698793B CN 111698793 B CN111698793 B CN 111698793B CN 201910199734 A CN201910199734 A CN 201910199734A CN 111698793 B CN111698793 B CN 111698793B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/12—Setup of transport tunnels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/11—Allocation or use of connection identifiers
Abstract
The embodiment of the invention provides a communication method and equipment, and relates to the technical field of communication. The method comprises the following steps: establishing a preset database according to signaling parameters carried by a signaling flow; receiving uplink communication data sent by a base station; extracting an SGW tunnel endpoint identifier on an S1U interface from the uplink communication database; and under the condition that the SGW tunnel endpoint identifier is in a preset database, after GTP head information of the uplink communication data is removed, the uplink communication data is sent to an external network through a local SGI interface. The uplink communication data can be transmitted to an external network through equipment with simple processing capacity, and large data service is facilitated.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a communication method and device.
Background
In a mobile communication network, the location of a user may change. When a user signs up for a Network, there is a home location, and when the user's location roams from the home location to another area (called a roaming location), it is necessary to borrow a device (e.g., an SGW (Serving Gateway) or a PGW (Public Data Network Gateway)) of the roaming location for communication.
In the prior art, when an enterprise network or a laboratory test network is established, in order to save cost, an SGW and a PGW cannot be purchased and established under the condition of being far away from a core network device MME (Mobility Management Entity), and at this time, a dedicated channel for telecommunications is usually adopted to implement a roaming service.
However, the bandwidth of the dedicated channel for telecommunication is limited, and large data traffic cannot be performed.
Disclosure of Invention
In view of the above, the present invention has been made to provide a communication method and apparatus that overcomes or at least partially solves the above problems.
According to an aspect of the present invention, there is provided a communication method, the method including:
establishing a preset database according to signaling parameters carried by a signaling flow;
receiving uplink communication data sent by a base station;
extracting an SGW tunnel endpoint identifier on an S1U interface from the uplink communication database;
and under the condition that the SGW tunnel endpoint identifier is in a preset database, after GTP head information of the uplink communication data is removed, the uplink communication data is sent to an external network through a local SGI interface.
Optionally, the method further comprises:
receiving downlink communication data sent by the external network;
extracting a terminal IP address from the downlink communication data;
under the condition that the terminal IP address is in a preset database, extracting a base station tunnel endpoint identifier corresponding to the terminal IP address from the preset database;
and encapsulating the downlink communication data through the base station tunnel endpoint identifier, and sending the downlink communication data to a base station corresponding to the base station tunnel endpoint identifier.
Optionally, the establishing a preset database according to the signaling parameter carried by the signaling flow includes:
extracting IMSI information from signaling parameters carried by a signaling flow;
under the condition that the IMSI information is in a preset IMSI white list, extracting an SGW tunnel endpoint identifier on an S1U interface, a terminal IP address and a base station tunnel endpoint identifier on an S1U interface from the signaling parameters;
and extracting the SGW tunnel endpoint identifier on the S1U interface, the terminal IP address and the base station tunnel endpoint identifier on the S1U interface from the signaling parameters.
Optionally, the method further comprises:
in case the SGW tunnel endpoint identity is not in a preset database,
and sending the uplink communication data to the SGW corresponding to the SGW tunnel endpoint identifier.
Optionally, the signaling flow at least includes:
initial attachment flow, bearer establishment flow, bearer activation flow and cell switching flow.
In accordance with another aspect of the present invention, there is provided a communication apparatus, the apparatus comprising:
the preset database establishing module is used for establishing a preset database according to the signaling parameters carried by the signaling flow;
the uplink communication data receiving module is used for receiving uplink communication data sent by the base station;
an SGW tunnel endpoint identifier extraction module, configured to extract an SGW tunnel endpoint identifier on the S1U interface from the uplink communication database;
and the uplink communication data forwarding module is used for removing GTP head information of the uplink communication data under the condition that the SGW tunnel endpoint identifier is in a preset database, and then sending the uplink communication data to an external network through a local SGI interface.
Optionally, the apparatus further comprises:
a downlink communication data receiving module, configured to receive downlink communication data sent by the external network;
a terminal IP extraction module used for extracting a terminal IP address from the downlink communication data;
a base station tunnel endpoint identifier extracting module, configured to extract a base station tunnel endpoint identifier corresponding to the terminal IP address from a preset database when the terminal IP address is in the preset database;
and the downlink communication data forwarding module is used for packaging the downlink communication data through the base station tunnel endpoint identifier and sending the downlink communication data to the base station corresponding to the base station tunnel endpoint identifier.
Optionally, the preset database establishing module includes:
the IMSI information extraction submodule is used for extracting IMSI information from the signaling parameters carried by the signaling flow;
a signaling parameter analysis submodule, configured to extract, from the signaling parameter, an SGW tunnel endpoint identifier on an S1U interface, a terminal IP address, and a base station tunnel endpoint identifier on an S1U interface when the IMSI information is in a preset IMSI white list;
and the preset database establishing submodule is used for extracting the SGW tunnel endpoint identifier on the S1U interface, the terminal IP address and the base station tunnel endpoint identifier on the S1U interface from the signaling parameters.
Optionally, the apparatus further comprises:
and the uplink communication data sending module is used for sending the uplink communication data to the SGW corresponding to the SGW tunnel endpoint identifier under the condition that the SGW tunnel endpoint identifier is not in a preset database.
Optionally, the signaling flow at least includes:
initial attachment flow, bearer establishment flow, bearer activation flow and cell switching flow.
The embodiment of the invention has the following advantages:
according to the communication method and the communication equipment, the method comprises the following steps: establishing a preset database according to signaling parameters carried by a signaling flow; receiving uplink communication data sent by a base station; extracting an SGW tunnel endpoint identifier on an S1U interface from the uplink communication database; and under the condition that the SGW tunnel endpoint identifier is in a preset database, after GTP head information of the uplink communication data is removed, the uplink communication data is sent to an external network through a local SGI interface. The uplink communication data can be transmitted to an external network through equipment with simple processing capacity, and the large data service is facilitated.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 shows a flow chart of the steps of a first embodiment of a communication method according to the invention;
fig. 2 shows a flow chart of the steps of an embodiment two of a communication method according to the invention;
FIG. 3 shows a schematic diagram of an initial attach procedure;
figure 4 shows a schematic diagram of a bearer establishment procedure;
fig. 5 shows a schematic diagram of the S1 handover procedure;
fig. 6 shows a schematic diagram of an X2 handover procedure;
fig. 7 shows a block diagram of a third embodiment of a communication device according to the invention;
fig. 8 shows a block diagram of a fourth embodiment of a communication device according to the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Example one
Referring to fig. 1, a flowchart illustrating steps of a first embodiment of a communication method according to the present invention is shown, where the method may specifically include the following steps:
The signaling parameter may be an S1AP signaling parameter.
Specifically, a signaling parameter meeting the requirement is selected from signaling parameters carried in a signaling flow and added to a preset database.
And 102, receiving uplink communication data sent by the base station.
The uplink communication data is communication data sent by the mobile terminal to the network.
Specifically, first, the mobile terminal sends uplink communication data to the base station; then, the base station forwards the uplink communication data to the mobile communication core network.
The embodiment of the invention is applied to mobile data service, therefore, the target network of the uplink communication data is not a mobile communication core network but the internet, so that the base station needs to forward the uplink communication data to the internet.
The uplink communication data includes control data and user data, the control data includes control information, for example, source base station information, source terminal information, tunnel information, destination base station information, destination terminal information, and the like, and the user data is actual data that the user needs to send.
The S1U interface is an interface between an Evolved Node Base (ENodeB) and a Serving GateWay (SGW).
The Tunnel Endpoint IDentifier (TEID) is used to indicate a device IDentifier of the connection tunnel, including the SGW tunnel endpoint IDentifier and the base station tunnel endpoint IDentifier.
The SGW tunnel endpoint identification is the identification of the SGW connected with the tunnel, and the base station tunnel endpoint identification is the identification of the base station connected with the tunnel.
And step 104, under the condition that the SGW tunnel endpoint identifier is in a preset database, after removing GTP header information of the uplink communication data, sending the uplink communication data to an external network through a local SGI interface.
The SGI interface is an interface between the device performing the communication method and an external network. The device is pre-configured for an area and establishes a communication connection between the device and an external network, as well as a connection with a base station.
The external network may be the internet or another network that can communicate with the mobile communication network, so that the mobile terminal device can access the external network.
It can be understood that the number of the base stations and the target networks accessing the device may be set according to an actual application scenario, and the embodiment of the present invention does not limit the number.
In addition, since the external network is not a mobile communication network, decapsulation, that is, removal of GTP (GPRS Tunneling Protocol) header information is required to satisfy a Protocol (for example, Internet Protocol) of the external network.
Specifically, the process of transmitting to the external network includes: first, an identifier of an external network is acquired from uplink communication data, and then the uplink communication data is transmitted to the external network.
The embodiment of the invention can directly send the uplink communication data meeting the conditions to the external network. Because the bandwidth which can be allocated between the equipment and the external network is related to the supporting capability of the external network, the bandwidth is larger compared with a telecommunication dedicated channel, and thus, large data service can be realized.
In an embodiment of the present invention, a communication method is provided, where the method includes: establishing a preset database according to signaling parameters carried by a signaling flow; receiving uplink communication data sent by a base station; extracting an SGW tunnel endpoint identifier on an S1U interface from the uplink communication database; and under the condition that the SGW tunnel endpoint identifier is in a preset database, after GTP head information of the uplink communication data is removed, the uplink communication data is sent to an external network through a local SGI interface. The uplink communication data can be transmitted to an external network through equipment with simple processing capacity, and large data service is facilitated.
Example two
Referring to fig. 2, a flowchart illustrating steps of a second embodiment of a communication method according to the present invention is shown, which may specifically include the following steps:
Wherein, the IMSI (International Mobile Subscriber identity) uniquely identifies an end user.
Optionally, in another embodiment of the present invention, the signaling flow at least includes: initial attachment flow, bearer establishment flow, bearer activation flow and cell switching flow.
The initial attach procedure is initiated by the terminal for completing registration to the network and default bearer establishment. As shown in fig. 3, a UE (User Equipment) sends an attach request to a base station, and the attach request is subjected to procedures such as attach confirmation, authentication, key selection, session deletion, location deletion, session creation, RRC (Radio Resource Control) context reconfiguration, bearer modification, and the like.
The bearer establishment procedure is initiated by the terminal, and is used to establish a link, as shown in fig. 4, including: session creation, RRC connection reconfiguration, bearer modification, etc.
The cell handover procedure includes two kinds of handover, i.e., S1 handover and X2 handover, as shown in fig. 5, the S1 handover procedure includes procedures of measurement report uploading, handover request, handover confirmation, RRC connection reconfiguration, eNodeB state transmission, terminal context release, and the like; as shown in fig. 6, the X2 handover procedure includes: RRC connection reconfiguration, measurement report uploading, switching decision sending, uplink information transmission, switching path determination, terminal context release, resource release and other processes.
The preset IMSI white list stores the target user identifier targeted by the embodiment of the present invention. The embodiment of the invention is preferentially applied to the private network and the laboratory network, so that the IMSI of the user using the private network and the laboratory network can be added into the IMSI white list.
It can be understood that the obtained signaling parameters are different in different signaling flows. For example, the signaling parameters carried in the initial attach flow are as in table 1, the signaling parameters carried in the bearer establishment flow are as in table 2, and the signaling parameters carried in the cell handover flows (S1 handover, X2 handover) are as in tables 3 and 4, respectively, where the cell in which the signaling parameter is located is information carrying the signaling parameter in the signaling flow, and it can be seen that PDN ADDRESS (terminal IP address) can be obtained in the initial attach flow, but neither the bearer establishment flow nor the handover flow can be obtained.
TABLE 1
TABLE 2
TABLE 3
TABLE 4
Specifically, the IMSI information, the SGW tunnel endpoint identifier, the terminal IP address, and the base station tunnel endpoint identifier are respectively stored as fields in a preset database according to the corresponding relationship.
It can be understood that, in practical applications, other information in the signaling flow may also be added to the database, and the embodiment of the present invention does not limit the information.
The embodiment of the invention can collect the signaling parameters of the users belonging to the white list in the communication process, establish the database and realize the independent processing of the communication data of the users.
And step 204, receiving uplink communication data sent by the base station.
This step can refer to the detailed description of step 102, and is not described herein again.
This step can refer to the detailed description of step 103, which is not repeated herein. And step 206, under the condition that the SGW tunnel endpoint identifier is in a preset database, after removing GTP header information of the uplink communication data, sending the uplink communication data to an external network through a local SGI interface.
This step can refer to the detailed description of step 104, and will not be described herein.
And step 207, sending the uplink communication data to the SGW corresponding to the SGW tunnel endpoint identifier when the SGW tunnel endpoint identifier is not in the preset database.
The embodiment of the invention can carry out normal processing on users who do not use a special network or a laboratory network, namely: and sending the data to an external network through the SGW.
It can be understood that, in practical applications, when there are multiple MMEs (Mobility Management Entity), the unique SGW needs to be determined through the SGW tunnel endpoint identifier and the SGW IP address at the same time, but in the embodiment of the present invention, only one MME or MME POOL exists in the private network and the laboratory network, so that the unique SGW can be determined by the SGW tunnel endpoint identifier alone.
The downlink communication data may be data corresponding to a data service, such as internet data acquired from the internet.
It will be appreciated that the terminal IP address is the address of the target user, and is the terminal IPV4 address connected to the PDN (Public Data Network).
Similarly to the SGW, the base station tunnel id may also uniquely correspond to the base station.
Specifically, the terminal IP address is stored in the preset database in correspondence with the base station tunnel endpoint identifier, so that when the terminal IP address in the downlink communication data is consistent with the terminal IP address in the preset database, the corresponding base station tunnel endpoint identifier is obtained.
And step 211, encapsulating the downlink communication data through the base station tunnel endpoint identifier, and sending the downlink communication data to a base station corresponding to the base station tunnel endpoint identifier.
Specifically, an interface of 3GPP may be called to encapsulate downlink communication data, so as to pretend to be an SGW that issues the downlink communication data to the base station. It can be understood that, since the base station only receives the downlink communication data sent by the SGW, the base station will receive the downlink communication data and forward the downlink communication data to the mobile terminal after disguising.
In addition, it should be noted that when the terminal IP address is not in the preset database, the downlink communication data is not processed.
In an embodiment of the present invention, a communication method is provided, where the method includes: establishing a preset database according to signaling parameters carried by a signaling flow; receiving uplink communication data sent by a base station; extracting an SGW tunnel endpoint identifier on an S1U interface from the uplink communication database; and under the condition that the SGW tunnel endpoint identifier is in a preset database, after GTP head information of the uplink communication data is removed, the uplink communication data is sent to an external network through a local SGI interface. The uplink communication data can be transmitted to an external network through equipment with simple processing capacity, and large data service is facilitated.
For simplicity of explanation, the method embodiments are described as a series of acts or combinations, but those skilled in the art will appreciate that the embodiments are not limited by the order of acts described, as some steps may occur in other orders or concurrently with other steps in accordance with the embodiments of the invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
EXAMPLE III
Referring to fig. 7, a block diagram illustrating a third embodiment of a communication device according to the present invention is shown, the device including:
a preset database establishing module 301, configured to establish a preset database according to the signaling parameters carried in the signaling flow.
An uplink communication data receiving module 302, configured to receive uplink communication data sent by a base station.
An SGW tunnel endpoint identifier extracting module 303, configured to extract an SGW tunnel endpoint identifier on the S1U interface from the upstream communication database.
An uplink communication data forwarding module 304, configured to send the uplink communication data to an external network through a local SGI interface after removing GTP header information of the uplink communication data when the SGW tunnel endpoint identifier is in a preset database.
An embodiment of the present invention provides a communication device, and the system includes: the preset database establishing module is used for establishing a preset database according to the signaling parameters carried by the signaling flow; the uplink communication data receiving module is used for receiving uplink communication data sent by the base station; an SGW tunnel endpoint identifier extraction module, configured to extract an SGW tunnel endpoint identifier on the S1U interface from the uplink communication database; and the uplink communication data forwarding module is used for removing GTP head information of the uplink communication data under the condition that the SGW tunnel endpoint identifier is in a preset database, and then sending the uplink communication data to an external network through a local SGI interface. The uplink communication data can be transmitted to an external network through equipment with simple processing capacity, and large data service is facilitated.
The first embodiment of the method corresponds to the first embodiment of the system, and the detailed description may refer to the first embodiment, which is not repeated herein.
Example four
Referring to fig. 8, a block diagram illustrating a fourth embodiment of a communication device according to the present invention, the device includes:
a preset database establishing module 401, configured to establish a preset database according to a signaling parameter carried by a signaling process; optionally, in this embodiment of the present invention, the preset database creating module 401 includes:
the IMSI information extraction sub-module 4011 is configured to extract IMSI information from signaling parameters carried in the signaling flow.
A signaling parameter parsing submodule 4012, configured to extract, from the signaling parameter, an SGW tunnel endpoint identifier on the S1U interface, a terminal IP address, and a base station tunnel endpoint identifier on the S1U interface, when the IMSI information is in a preset IMSI white list.
A preset database establishing submodule 4013, configured to extract, from the signaling parameters, an SGW tunnel endpoint identifier on the S1U interface, a terminal IP address, and a base station tunnel endpoint identifier on the S1U interface.
An uplink communication data receiving module 402, configured to receive uplink communication data sent by a base station.
An SGW tunnel endpoint id extracting module 403, configured to extract an SGW tunnel endpoint id on the S1U interface from the uplink communication database.
An uplink communication data forwarding module 404, configured to, when the SGW tunnel endpoint identifier is in a preset database, remove GTP header information of the uplink communication data, and send the uplink communication data to an external network through a local SGI interface.
An uplink communication data sending module 405, configured to send the uplink communication data to an SGW corresponding to the SGW tunnel endpoint identifier when the SGW tunnel endpoint identifier is not in the preset database.
A downlink communication data receiving module 406, configured to receive downlink communication data sent by the external network.
A terminal IP address extracting module 407, configured to extract a terminal IP address from the downlink communication data.
A base station tunnel endpoint identifier extracting module 408, configured to extract, when the terminal IP address is in a preset database, a base station tunnel endpoint identifier corresponding to the terminal IP address from the preset database.
And a downlink communication data forwarding module 409, configured to encapsulate the downlink communication data through the base station tunnel endpoint identifier, and send the encapsulated downlink communication data to a base station corresponding to the base station tunnel endpoint identifier.
Optionally, in another embodiment of the present invention, the signaling flow at least includes:
initial attachment flow, bearer establishment flow, bearer activation flow and cell switching flow.
An embodiment of the present invention provides a communication device, where the device includes: the preset database establishing module is used for establishing a preset database according to the signaling parameters carried by the signaling flow; the uplink communication data receiving module is used for receiving uplink communication data sent by the base station; an SGW tunnel endpoint identifier extraction module, configured to extract an SGW tunnel endpoint identifier on the S1U interface from the uplink communication database; and the uplink communication data forwarding module is used for removing GTP head information of the uplink communication data under the condition that the SGW tunnel endpoint identifier is in a preset database, and then sending the uplink communication data to an external network through a local SGI interface. The uplink communication data can be transmitted to an external network through equipment with simple processing capacity, and large data service is facilitated.
The second embodiment of the method corresponds to the second embodiment of the system, and the detailed description may refer to the second embodiment, which is not repeated herein.
For the system embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. Moreover, the present invention is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
Various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functionality of some or all of the components in a test apparatus according to embodiments of the present invention. The present invention may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
Claims (8)
1. A method of communication, the method comprising:
establishing a preset database according to signaling parameters carried by a signaling flow;
receiving uplink communication data sent by a base station;
extracting an SGW tunnel endpoint identifier on an S1U interface from the uplink communication database;
under the condition that the SGW tunnel endpoint identifier is in a preset database, after GTP head information of the uplink communication data is removed, the uplink communication data is sent to an external network through a local SGI interface; and sending the uplink communication data to the SGW corresponding to the SGW tunnel endpoint identifier under the condition that the SGW tunnel endpoint identifier is not in a preset database.
2. The method of claim 1, further comprising:
receiving downlink communication data sent by the external network;
extracting a terminal IP address from the downlink communication data;
under the condition that the terminal IP address is in a preset database, extracting a base station tunnel endpoint identifier corresponding to the terminal IP address from the preset database;
and encapsulating the downlink communication data through the base station tunnel endpoint identifier, and sending the downlink communication data to a base station corresponding to the base station tunnel endpoint identifier.
3. The method according to claim 1, wherein the establishing a preset database according to the signaling parameters carried by the signaling process comprises:
extracting IMSI information from signaling parameters carried by a signaling flow;
under the condition that the IMSI information is in a preset IMSI white list, extracting an SGW tunnel endpoint identifier on an S1U interface, a terminal IP address and a base station tunnel endpoint identifier on an S1U interface from the signaling parameters;
and adding the IMSI information, the SGW tunnel endpoint identification, the terminal IP address and the base station tunnel endpoint identification to a preset database.
4. The method of claim 3, wherein the signaling flow at least comprises:
initial attachment flow, bearer establishment flow, bearer activation flow and cell switching flow.
5. A communication device, the device comprising:
the preset database establishing module is used for establishing a preset database according to the signaling parameters carried by the signaling flow;
the uplink communication data receiving module is used for receiving uplink communication data sent by the base station;
an SGW tunnel endpoint identifier extraction module, configured to extract an SGW tunnel endpoint identifier on the S1U interface from the uplink communication database;
the uplink communication data forwarding module is used for sending the uplink communication data to an external network through a local SGI (serving gateway interface) after removing GTP (general packet data) header information of the uplink communication data under the condition that the SGW tunnel endpoint identifier is in a preset database;
and the uplink communication data sending module is used for sending the uplink communication data to the SGW corresponding to the SGW tunnel endpoint identifier under the condition that the SGW tunnel endpoint identifier is not in a preset database.
6. The apparatus of claim 5, further comprising:
a downlink communication data receiving module, configured to receive downlink communication data sent by the external network;
a base station tunnel endpoint identifier extraction module, configured to extract a terminal IP address from the downlink communication data;
a base station tunnel endpoint identifier extracting module, configured to extract a base station tunnel endpoint identifier corresponding to the terminal IP address from a preset database when the terminal IP address is in the preset database;
and the downlink communication data forwarding module is used for packaging the downlink communication data through the base station tunnel endpoint identifier and sending the downlink communication data to the base station corresponding to the base station tunnel endpoint identifier.
7. The apparatus of claim 5, wherein the preset database building module comprises:
the IMSI information extraction submodule is used for extracting IMSI information from the signaling parameters carried by the signaling flow;
a signaling parameter analysis submodule, configured to extract, from the signaling parameter, an SGW tunnel endpoint identifier on an S1U interface, a terminal IP address, and a base station tunnel endpoint identifier on an S1U interface when the IMSI information is in a preset IMSI white list;
and the preset database establishing submodule is used for extracting the SGW tunnel endpoint identifier on the S1U interface, the terminal IP address and the base station tunnel endpoint identifier on the S1U interface from the signaling parameters.
8. The apparatus of claim 7, wherein the signaling flow comprises at least:
initial attachment flow, bearer establishment flow, bearer activation flow and cell switching flow.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910199734.XA CN111698793B (en) | 2019-03-15 | 2019-03-15 | Communication method and device |
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|---|---|---|---|
| CN201910199734.XA CN111698793B (en) | 2019-03-15 | 2019-03-15 | Communication method and device |
Publications (2)
| Publication Number | Publication Date |
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| CN111698793A CN111698793A (en) | 2020-09-22 |
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