CN114501679A - Data transmission method, device and system - Google Patents
Data transmission method, device and system Download PDFInfo
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- CN114501679A CN114501679A CN202011154414.1A CN202011154414A CN114501679A CN 114501679 A CN114501679 A CN 114501679A CN 202011154414 A CN202011154414 A CN 202011154414A CN 114501679 A CN114501679 A CN 114501679A
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- terminal
- network element
- connection request
- service connection
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/27—Transitions between radio resource control [RRC] states
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Abstract
The invention provides a data transmission method, a data transmission device and a data transmission system, and belongs to the technical field of communication. The data transmission method is applied to an access network element and comprises the following steps: receiving a service connection request of downlink data sent by a local service server; acquiring the address of a target terminal of the service connection request, wherein the terminal is in an idle state; sending the address of the terminal to a core network element so that the core network element initiates a paging process to the terminal to activate the terminal; and after the terminal is activated, sending the service connection request to the terminal. The technical scheme of the invention can realize that the local service server successfully sends the downlink data to the terminal when the terminal is in an idle state.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data transmission method, apparatus, and system.
Background
The application scenes of the vertical industry all have service requirements of data local distribution, after user data pass through the wireless base station, the base station side completes local unloading of the user local data, the data flow of the local unloading is not forwarded through the core network any more, and the service data of the public network is sent to the core network according to a relevant standard flow. The following problems exist in this scheme: when a user is in an idle state of Radio Resource Control (RRC), a local service server needs to send a downlink service data packet, and at this time, the user cannot be woken up and cannot successfully send downlink data to the user.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a data transmission method, apparatus and system, which can realize that a local service server successfully sends downlink data to a terminal when the terminal is in an idle state.
To solve the above technical problem, embodiments of the present invention provide the following technical solutions:
in one aspect, a data transmission method applied to an access network element is provided, including:
receiving a service connection request of downlink data sent by a local service server;
acquiring the address of a target terminal of the service connection request, wherein the terminal is in an idle state;
sending the address of the terminal to a core network element so that the core network element initiates a paging process to the terminal to activate the terminal;
and after the terminal is activated, sending the service connection request to the terminal.
On the other hand, an embodiment of the present invention provides a data transmission method, which is applied to a core network element, and includes:
receiving an address of a terminal sent by an access network element, wherein the terminal is in an idle state;
and initiating a paging process to the terminal and activating the terminal.
On the other hand, an embodiment of the present invention provides a data transmission method, which is applied to a terminal, and includes:
receiving a service connection request of downlink data forwarded by an access network element, wherein the service connection request is sent by a local service server;
sending a service connection response to the local service server;
and performing service data interaction with the local service server.
On the other hand, an embodiment of the present invention provides a data transmission method, which is applied to a local service server, and includes:
initiating a service connection request to a terminal in an idle state, and sending the service connection request to an access network element corresponding to the terminal;
receiving a service connection response returned by the terminal;
and performing service data interaction with the terminal.
In another aspect, an embodiment of the present invention provides a data transmission system, including:
the local service server is used for initiating a service connection request to a terminal in an idle state and sending the service connection request to an access network element corresponding to the terminal; receiving a service connection response returned by the terminal; performing service data interaction with the terminal;
the access network element is used for receiving a service connection request of the downlink data sent by the local service server; acquiring the address of a target terminal of the service connection request, wherein the terminal is in an idle state; sending the address of the terminal to a core network element so that the core network element initiates a paging process to the terminal to activate the terminal; after the terminal is activated, sending the service connection request to the terminal;
the core network element is used for receiving an address of the terminal sent by the access network element, and the terminal is in an idle state; initiating a paging process to the terminal and activating the terminal;
the terminal is used for receiving a service connection request of downlink data forwarded by an access network element, and the service connection request is sent by a local service server; sending a service connection response to the local service server; and performing service data interaction with the local service server.
In another aspect, an embodiment of the present invention provides a data transmission apparatus, which is applied to an access network element, and includes:
the first receiving module is used for receiving a service connection request of downlink data sent by a local service server;
an obtaining module, configured to obtain an address of a destination terminal of the service connection request, where the terminal is in an idle state;
a first sending module, configured to send the address of the terminal to a core network element, so that the core network element initiates a paging procedure for the terminal to activate the terminal;
and the second sending module is used for sending the service connection request to the terminal after the terminal is activated.
On the other hand, an embodiment of the present invention provides a data transmission apparatus, which is applied to a core network element, and includes:
a second receiving module, configured to receive an address of a terminal sent by an access network element, where the terminal is in an idle state;
and the paging module is used for initiating a paging process to the terminal and activating the terminal.
On the other hand, an embodiment of the present invention provides a data transmission apparatus, which is applied to a terminal, and includes:
a third receiving module, configured to receive a service connection request of downlink data forwarded by an access network element, where the service connection request is sent by a local service server;
a third sending module, configured to send a service connection response to the local service server;
and the first data interaction module is used for carrying out service data interaction with the local service server.
On the other hand, an embodiment of the present invention provides a data transmission apparatus, which is applied to a local service server, and includes:
a fourth sending module, configured to initiate a service connection request to a terminal in an idle state, and send the service connection request to an access network element corresponding to the terminal;
a fourth receiving module, configured to receive a service connection response returned by the terminal;
and the second data interaction module is used for carrying out service data interaction with the terminal.
An embodiment of the present invention provides a data transmission apparatus, including a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor implements the data transmission method as described above when executing the program.
Embodiments of the present invention provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps in the method as described above.
The embodiment of the invention has the following beneficial effects:
in the above scheme, when the terminal is in an idle state and the local service server needs to send downlink data to the user, the access network element acquires a destination IP address in a service connection request sent by the local service server, and sends the IP address to the core network element, and the core network element initiates a Paging procedure to the terminal of the IP address under the access network element, so as to activate the terminal to complete an RRC connection state process, thereby enabling the local service server to complete service data interaction with the terminal. By the technical scheme of the invention, the downlink data can be successfully sent to the terminal by the local service server when the terminal is in an idle state.
Drawings
Fig. 1 is a schematic diagram of a base station shunting principle;
FIGS. 2-5 are schematic flow charts of the data transmission method of the present invention;
FIG. 6 is a flowchart illustrating a data transmission method according to an embodiment of the invention;
fig. 7-10 are schematic structural diagrams of a data transmission device according to an embodiment of the invention;
fig. 11 is a schematic diagram illustrating a data transmission apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
In the vertical industry application scenario, there is a service requirement for local data distribution, as shown in fig. 1, after user data first passes through a wireless base station, the base station side completes local data unloading of the user, the locally unloaded data stream is not forwarded through a core network any more, and for public network service data, the locally unloaded data stream is sent to the core network according to a relevant standard flow. The amf (access and Mobility Management function) is an access and Mobility Management function entity, the smf (session Management function) is a session Management function entity, the upf (user plane function) is a user plane function entity, the UE is a terminal, and the gNB is a base station.
Embodiments of the present invention provide a data transmission method, apparatus, and system, which can implement that a local service server successfully sends downlink data to a terminal when the terminal is in an idle state.
An embodiment of the present invention provides a data transmission method, which is applied to an access network element, and as shown in fig. 2, includes:
step 101: receiving a service connection request of downlink data sent by a local service server;
step 102: acquiring the address of a target terminal of the service connection request, wherein the terminal is in an idle state;
step 103: sending the address of the terminal to a core network element so that the core network element initiates a paging process to the terminal to activate the terminal;
step 104: and after the terminal is activated, sending the service connection request to the terminal.
An embodiment of the present invention provides a data transmission method, which is applied to a core network element, as shown in fig. 3, and includes:
step 201: receiving an address of a terminal sent by an access network element, wherein the terminal is in an idle state;
step 202: and initiating a paging process to the terminal and activating the terminal.
An embodiment of the present invention provides a data transmission method, which is applied to a terminal, and as shown in fig. 4, the method includes:
step 301: receiving a service connection request of downlink data forwarded by an access network element, wherein the service connection request is sent by a local service server;
step 302: sending a service connection response to the local service server;
step 303: and performing service data interaction with the local service server.
An embodiment of the present invention provides a data transmission method, which is applied to a local service server, and as shown in fig. 5, the method includes:
step 401: initiating a service connection request to a terminal in an idle state, and sending the service connection request to an access network element corresponding to the terminal;
step 402: receiving a service connection response returned by the terminal;
step 403: and performing service data interaction with the terminal.
An embodiment of the present invention provides a data transmission system, including:
the local service server is used for initiating a service connection request to a terminal in an idle state and sending the service connection request to an access network element corresponding to the terminal; receiving a service connection response returned by the terminal; performing service data interaction with the terminal;
the access network element is used for receiving a service connection request of the downlink data sent by the local service server; acquiring the address of a target terminal of the service connection request, wherein the terminal is in an idle state; sending the address of the terminal to a core network element so that the core network element initiates a paging process to the terminal to activate the terminal; after the terminal is activated, sending the service connection request to the terminal;
the core network element is used for receiving an address of the terminal sent by the access network element, and the terminal is in an idle state; initiating a paging process to the terminal and activating the terminal;
the terminal is used for receiving a service connection request of downlink data forwarded by an access network element, and the service connection request is sent by a local service server; sending a service connection response to the local service server; and performing service data interaction with the local service server.
Specifically, as shown in fig. 6, taking an access network element as an gNB as an example, the data transmission method includes the following steps:
(1) the UE is in an RRC Idle state, a local service server actively triggers downlink services, the local service server initiates a service connection request to the UE, and the service connection request is firstly sent to a base station;
(2) after acquiring a downlink data request of a local service server, a base station acquires a destination IP address of a service connection request and informs the core network element of the destination IP address of the request;
(3) the core network element actively initiates a Paging process to the corresponding identification information UE (such as the user corresponding to the intranet IP) under the base station;
(4) after the UE is activated, the base station forwards a service connection request of a local service server to the UE;
(5) the UE sends a service connection response to the local service server;
(6) and the local service server sends the data to the UE for local service data interaction.
In the above process, the base station triggers the core network element to initiate a Paging process for the specified user: when a terminal user is in an idle state and a local service server needs to send downlink data to the user, a base station is needed to acquire a destination IP address in a downlink data packet sent by the local service server and send the IP address to a core network element, the core network element initiates a Paging flow to the IP address user under the base station, and the terminal is activated to complete an RRC connection state process, so that the local service server can complete service data interaction with the terminal. By the technical scheme of the invention, the downlink data can be successfully sent to the terminal by the local service server when the terminal is in an idle state.
An embodiment of the present invention provides a data transmission apparatus, which is applied to an access network element, as shown in fig. 7, and includes:
a first receiving module 51, configured to receive a service connection request of downlink data sent by a local service server;
an obtaining module 52, configured to obtain an address of a destination terminal of the service connection request, where the terminal is in an idle state;
a first sending module 53, configured to send the address of the terminal to a core network element, so that the core network element initiates a paging procedure to the terminal to activate the terminal;
a second sending module 54, configured to send the service connection request to the terminal after the terminal is activated.
An embodiment of the present invention provides a data transmission apparatus, which is applied to a core network element, as shown in fig. 8, and includes:
a second receiving module 61, configured to receive an address of a terminal sent by an access network element, where the terminal is in an idle state;
a paging module 62, configured to initiate a paging procedure to the terminal and activate the terminal.
An embodiment of the present invention provides a data transmission apparatus, which is applied to a terminal, and as shown in fig. 9, includes:
a third receiving module 71, configured to receive a service connection request of downlink data forwarded by an access network element, where the service connection request is sent by a local service server;
a third sending module 72, configured to send a service connection response to the local service server;
and the first data interaction module 73 is configured to perform service data interaction with the local service server.
An embodiment of the present invention provides a data transmission apparatus, which is applied to a local service server, as shown in fig. 10, and includes:
a fourth sending module 81, configured to initiate a service connection request to a terminal in an idle state, and send the service connection request to an access network element corresponding to the terminal;
a fourth receiving module 82, configured to receive a service connection response returned by the terminal;
and a second data interaction module 83, configured to perform service data interaction with the terminal.
In this embodiment, when the terminal is in an idle state and the local service server needs to send downlink data to the user, the access network element acquires a destination IP address in a service connection request sent by the local service server, and sends the IP address to the core network element, and the core network element initiates a Paging procedure to the terminal of the IP address under the access network element, so as to activate the terminal to complete an RRC connection state process, thereby enabling the local service server to complete service data interaction with the terminal. By the technical scheme of the invention, the downlink data can be successfully sent to the terminal by the local service server when the terminal is in an idle state.
An embodiment of the present invention provides a data transmission apparatus, as shown in fig. 11, including a memory 91, a processor 92, and a computer program stored on the memory 91 and executable on the processor 92; the processor 92, when executing the program, implements the data transmission method as described above.
When the data transmission device is applied to an access network element, the processor 92 is configured to receive a service connection request of downlink data sent by a local service server; acquiring the address of a target terminal of the service connection request, wherein the terminal is in an idle state; sending the address of the terminal to a core network element so that the core network element initiates a paging process to the terminal to activate the terminal; and after the terminal is activated, sending the service connection request to the terminal.
When the data transmission apparatus is applied to a core network element, the processor 92 is configured to receive an address of a terminal sent by an access network element, where the terminal is in an idle state; and initiating a paging process to the terminal and activating the terminal.
When the data transmission device is applied to a terminal, the processor 92 is configured to receive a service connection request of downlink data forwarded by an access network element, where the service connection request is sent by a local service server; sending a service connection response to the local service server; and performing service data interaction with the local service server.
When the data transmission apparatus is applied to a terminal, the processor 92 is configured to initiate a service connection request to the terminal in an idle state, and send the service connection request to an access network element corresponding to the terminal; receiving a service connection response returned by the terminal; and carrying out service data interaction with the terminal.
Embodiments of the present invention provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps in the method as described above.
Computer-readable media, including both permanent and non-permanent, removable and non-removable media, may implement the information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technologies, compact disc read only memory (CD-ROM), Digital Versatile Disc (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage terminal devices to be detected, or any other non-transmission medium that can be used to store information that can be accessed by a computer terminal device to be detected. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (11)
1. A data transmission method, applied to an access network element, includes:
receiving a service connection request of downlink data sent by a local service server;
acquiring the address of a target terminal of the service connection request, wherein the terminal is in an idle state;
sending the address of the terminal to a core network element so that the core network element initiates a paging process to the terminal to activate the terminal;
and after the terminal is activated, sending the service connection request to the terminal.
2. A data transmission method, applied to a core network element, includes:
receiving an address of a terminal sent by an access network element, wherein the terminal is in an idle state;
and initiating a paging process to the terminal and activating the terminal.
3. A data transmission method is applied to a terminal and comprises the following steps:
receiving a service connection request of downlink data forwarded by an access network element, wherein the service connection request is sent by a local service server;
sending a service connection response to the local service server;
and performing service data interaction with the local service server.
4. A data transmission method is applied to a local service server and comprises the following steps:
initiating a service connection request to a terminal in an idle state, and sending the service connection request to an access network element corresponding to the terminal;
receiving a service connection response returned by the terminal;
and performing service data interaction with the terminal.
5. A data transmission apparatus, applied to an access network element, comprising:
the first receiving module is used for receiving a service connection request of downlink data sent by a local service server;
an obtaining module, configured to obtain an address of a destination terminal of the service connection request, where the terminal is in an idle state;
a first sending module, configured to send the address of the terminal to a core network element, so that the core network element initiates a paging procedure for the terminal to activate the terminal;
and the second sending module is used for sending the service connection request to the terminal after the terminal is activated.
6. A data transmission apparatus, applied to a core network element, comprising:
a second receiving module, configured to receive an address of a terminal sent by an access network element, where the terminal is in an idle state;
and the paging module is used for initiating a paging process to the terminal and activating the terminal.
7. A data transmission apparatus, applied to a terminal, comprising:
a third receiving module, configured to receive a service connection request of downlink data forwarded by an access network element, where the service connection request is sent by a local service server;
a third sending module, configured to send a service connection response to the local service server;
and the first data interaction module is used for carrying out service data interaction with the local service server.
8. A data transmission apparatus, applied to a local service server, comprising:
a fourth sending module, configured to initiate a service connection request to a terminal in an idle state, and send the service connection request to an access network element corresponding to the terminal;
a fourth receiving module, configured to receive a service connection response returned by the terminal;
and the second data interaction module is used for carrying out service data interaction with the terminal.
9. A data transmission system, for use in an access network element, comprising:
the local service server is used for initiating a service connection request to a terminal in an idle state and sending the service connection request to an access network element corresponding to the terminal; receiving a service connection response returned by the terminal; performing service data interaction with the terminal;
the access network element is used for receiving a service connection request of the downlink data sent by the local service server; acquiring the address of a target terminal of the service connection request, wherein the terminal is in an idle state; sending the address of the terminal to a core network element so that the core network element initiates a paging process to the terminal to activate the terminal; after the terminal is activated, sending the service connection request to the terminal;
the core network element is used for receiving an address of the terminal sent by the access network element, and the terminal is in an idle state; initiating a paging process to the terminal and activating the terminal;
the terminal is used for receiving a service connection request of downlink data forwarded by an access network element, and the service connection request is sent by a local service server; sending a service connection response to the local service server; and performing service data interaction with the local service server.
10. A data transmission apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor; characterized in that the processor implements the data transmission method according to claim 1 or implements the data transmission method according to claim 2 or implements the data transmission method according to claim 3 or implements the data transmission method according to claim 4 when executing the program.
11. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the steps of the method as claimed in claim 1 or the steps of the method as claimed in claim 2 or the steps of the method as claimed in claim 3 or the steps of the method as claimed in claim 4.
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| CN202011154414.1A CN114501679A (en) | 2020-10-26 | 2020-10-26 | Data transmission method, device and system |
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| CN202011154414.1A CN114501679A (en) | 2020-10-26 | 2020-10-26 | Data transmission method, device and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115396510A (en) * | 2022-08-12 | 2022-11-25 | 西安广和通无线通信有限公司 | Communication method and communication module |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115396510A (en) * | 2022-08-12 | 2022-11-25 | 西安广和通无线通信有限公司 | Communication method and communication module |
| CN115396510B (en) * | 2022-08-12 | 2024-03-15 | 西安广和通无线通信有限公司 | Communication method and communication module |
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