CN114269004A - Attachment method and communication method of terminal of Internet of things and corresponding system - Google Patents
Attachment method and communication method of terminal of Internet of things and corresponding system Download PDFInfo
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Abstract
The invention relates to an attachment method and a communication method of an Internet of things terminal and a corresponding system. The attachment method of the Internet of things terminal comprises the following steps: RAN equipment receives an attachment request from a terminal, wherein the attachment request comprises a subnet identifier of a terminal home subnet and a terminal identifier; the RAN equipment forwards the attachment request to a mobile management entity; the mobile management entity sends a response of successful attachment to the terminal through the RAN equipment; the mobile management entity subnet control module stores the identifier of the RAN equipment attached to the terminal, the identifier of the home subnet of the RAN equipment and the identifier of the terminal. In the communication method of the terminal of the Internet of things, a mobile management entity subnet control module compares information in a received service request with stored information, and judges whether a sender terminal and a receiver terminal are users of the same subnet and are both attached to the same RAN equipment; if yes, the RAN equipment subnet control module pages the receiver terminal in the RAN and forwards the service flow in the RAN, and low-delay communication between the 6G network objects is achieved.
Description
Technical Field
The invention relates to the field of 6G mobile communication, in particular to an attachment method and a communication method of an Internet of things terminal and a corresponding attachment system and a corresponding communication system.
Background
2-5G focus on the communication between people and machines, and aims to solve the problem of interconnection of everything. And the 6G network realizes the target of the interconnection of everything by paying more attention to the things and people through the user self-organization network and the operator network. How to realize the requirement of ultra-low time delay communication between objects has become one of the research focuses of 6G networks. In 2-5G networks, RAN (service access network) devices directly forward terminal-initiated service requests to the core network upon receiving them, and communications between users must be relayed through the core network. At present, core networks tend to be deployed in a centralized manner more and more, and communication among users under the same RAN must also pass through the centrally deployed core networks, so that communication delay is greatly increased, and therefore, an ultra-low-delay communication scene between objects cannot be met.
Disclosure of Invention
In order to overcome the above defects, it is necessary to provide an innovative terminal attachment mechanism of the internet of things and a communication mechanism between different users under the same RAN, so as to meet the requirement of low-latency communication between 6G network objects.
Therefore, according to a first aspect of the present disclosure, an attachment method for an internet of things terminal is provided, including: the RAN equipment receives an attachment request from a terminal of the Internet of things, wherein the attachment request comprises a subnet identifier of a terminal home subnet and a terminal identifier; the RAN equipment forwards the attachment request to a mobile management entity; the mobile management entity sends a response of successful attachment to the terminal through the RAN equipment; and the mobile management entity subnet control module stores the identifier of the RAN equipment attached to the terminal, the subnet identifier of the home subnet of the RAN equipment and the terminal identifier.
In some embodiments, the mobility management entity subnet control module deletes the terminal from its storage if the terminal completes the detach or does not update the attach status for more than a certain time.
According to a second aspect of the present disclosure, a communication method for an internet of things terminal is provided, including: RAN equipment receives a service request from a sender terminal to a receiver terminal, wherein the service request comprises a subnet communication identifier, a subnet identifier of a subnet to which the sender terminal and the receiver terminal respectively belong, and a terminal identifier of the sender terminal; the RAN equipment forwards the service request to a mobile management entity; the mobile management entity subnet control module compares the information in the received service request with stored identifiers of RAN equipment respectively attached to the sender terminal and the receiver terminal and a subnet identifier of a subnet to which the receiver terminal belongs, and judges whether the sender terminal and the receiver terminal are users of the same subnet and are both attached to the same RAN equipment; if the sender terminal and the receiver terminal are users of the same subnet and are both attached to the same RAN equipment, the mobile management entity subnet control module sends a RAN intra-subnet communication instruction to the RAN equipment; the RAN equipment subnet control module pages a receiver terminal in the RAN according to the subnet communication indication in the RAN; and the RAN equipment transfers the service flow between the sender terminal and the receiver terminal in the RAN after receiving the paging success response from the receiver terminal.
In some embodiments, if the mme subnet control module determines that the sender terminal and the receiver terminal are not users of the same subnet and are both attached to the same RAN device, a tunnel to a core network user plane network element still needs to be established or service traffic needs to be forwarded through the tunnel, and user service traffic needs to be forwarded through the core network user network element.
In some embodiments, if the RAN device subnet control module does not successfully page the receiving terminal, the paging is performed again according to the paging strategy, and if the paging is not successful all the time, the communication failure is reported.
According to a third aspect of the present disclosure, an attachment system for a terminal of an internet of things is provided, which includes: the RAN equipment is used for receiving an attachment request from the terminal of the Internet of things and forwarding the attachment request to the mobile management entity, wherein the attachment request comprises a subnet identifier of a terminal home subnet and a terminal identifier; and the mobile management entity is in communication connection with the RAN equipment and comprises a mobile management entity subnet control module which is used for responding to the attachment request, sending a response of successful attachment to the terminal through the RAN equipment and storing the identifier of the RAN equipment attached to the terminal, the subnet identifier of a home subnet of the RAN equipment and the terminal identifier.
In some embodiments, the attach system of the terminal of the internet of things further includes a 5G or 6G terminal of the internet of things, which includes a subnet information module, configured to add a subnet identifier of a terminal home subnet and a terminal identifier to an attach request when the terminal issues the attach request to the RAN device.
According to a fourth aspect of the present disclosure, there is provided a communication system of an internet of things terminal, including: the RAN equipment is used for receiving a service request from the terminal of the Internet of things and forwarding the service request to the mobile management entity, wherein the service request comprises a subnet communication identifier, a subnet identifier of a subnet to which a sender and a receiver belong respectively and an identifier of the terminal of the sender; the mobile management entity is in communication connection with the RAN equipment, and comprises a mobile management entity subnet control module, a receiving terminal subnet control module and a processing module, wherein the mobile management entity subnet control module is used for judging whether the sending terminal and the receiving terminal are users of the same subnet and are attached to the same RAN equipment by comparing information in a received service request with stored identifiers of the RAN equipment to which the sending terminal and the receiving terminal are respectively attached and subnet identifiers of a subnet to which the receiving terminal belongs, and is used for sending a RAN inner subnet communication instruction to the RAN equipment under the condition that the sending terminal and the receiving terminal are users of the same subnet and are attached to the same RAN equipment; and the RAN equipment also comprises a RAN equipment subnet control module which is used for paging the receiving party terminal in the RAN according to the RAN subnet communication instruction and transmitting the service flow between the transmitting party terminal and the receiving party terminal in the RAN.
In some embodiments, the communication system of the terminal of the internet of things further includes: the terminal of the 5G or 6G Internet of things comprises a subnet information module which is used for adding a subnet communication identifier, a subnet identifier of a subnet to which the sender and the receiver respectively belong and an identifier of the sender terminal in a service request when the sender terminal sends the service request to the receiver terminal.
According to a fifth aspect of the present disclosure, there is provided a computer-readable storage medium having stored thereon instructions, which, when executed by a processor, cause the processor to perform the method for attaching to or the method for communicating with an internet of things terminal as described above.
Drawings
Other features and advantages of the present disclosure will become more apparent from the following detailed description of exemplary embodiments, which is to be read in connection with the accompanying drawings. In the drawings, like reference numerals refer to like parts throughout, and in which:
fig. 1 shows a schematic diagram of an overall architecture of an attachment system or a communication system of an internet of things terminal in a 6G network according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating an attachment method for a 5G or 6G internet of things terminal to a RAN device according to an embodiment of the present invention;
fig. 3 illustrates a flowchart of a communication method between terminals of a 5G or 6G internet of things according to an embodiment of the present invention; and
fig. 4 illustrates an exemplary configuration of a 5G or 6G internet of things terminal 100, a RAN apparatus 200, or a mobile management entity 300, which may implement an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic diagram illustrating an overall architecture of an attachment system or a communication system of a terminal of the internet of things in a 6G network according to an embodiment of the present invention. The system includes a plurality of 5G or 6G internet of things terminals 100, a RAN communicatively connected to the 5G or 6G terminals 100, and a mobile management entity 300 communicatively connected to the RAN.
Each 5G or 6G internet of things terminal 100 includes a subnet information module 101, and when each 5G or 6G internet of things terminal 100 sends an attach request to the RAN device 200, the subnet information module 101 adds a subnet identifier of the subnet to which the terminal 100 belongs and a terminal identifier to the attach request. When one 5G or 6G terminal 100 as a sender issues a service request to the RAN apparatus 200 to another 5G or 6G terminal 100' as a receiver, the subnet information module 101 adds a subnet communication identification, a subnet identifier of a subnet to which the sender and the receiver belong, and an identifier of the sender terminal to the service request.
The RAN device 200 receives an attach request or a service request from each 5G or 6G internet of things terminal 100 and forwards it to the mobile management entity 300.
The mobility management entity 300 includes a mobility management entity subnet control module 301 for storing an identifier of the RAN device 200 to which the 5G or 6G terminal 100 is attached and a subnet identifier and a terminal identifier of its home subnet upon receiving an attach request of the terminal 100. For a service request between terminals of the 5G or 6G internet of things, the mme subnet control module 301 determines whether the sender terminal 100 and the receiver terminal 100 ' to be communicated with each other are users of the same subnet and attached to the same RAN device by comparing information in the service request with stored identifiers of RAN devices to which the sender terminal 100 and the receiver terminal 100 ' are respectively attached and a subnet identifier of a subnet to which the receiver terminal 100 ' belongs. If the sender terminal 100 and the receiver terminal 100' to communicate with each other are users of the same subnet and are attached to the same RAN device, the mme subnet control module 301 sends an intra-RAN subnet communication indication to the RAN device 200.
The RAN equipment 200 further includes a RAN equipment subnet control module 201 for directly paging the receiver terminal 100 'within the RAN and forwarding the traffic flow between the transmitter terminal 100 and the receiver terminal 100' within the RAN according to the intra-RAN subnet communication indication received from the mobility management entity subnet control module 301.
An attach procedure for a 5G or 6G internet of things terminal to a RAN according to one embodiment of the present invention will now be described with reference to fig. 2.
First, in step S201, the 5G or 6G terminal 100 initiates an attach request to the RAN apparatus 200, and the subnet information module 101 of the terminal 100 adds the subnet identifier of the terminal 100 home subnet and the terminal identifier of the terminal 100 to the attach request.
In step S202, the RAN device 200 forwards the attach request to the mobility management entity 300.
The mobility management entity 300 responds to the attach request. If the attachment is successful, the mobility management entity 300 transmits an attachment success response to the terminal 100 through the RAN equipment 200 in step S203.
Then, in step S204, the mobility management entity subnet control module 301 stores the identifier of the RAN device attached to the terminal 100 and the subnet identifier and terminal identifier of its home subnet.
In addition, if the 5G or 6G terminal 100 completes the detach or does not update the attached state for more than a certain time, the mobility management entity subnet control module 301 deletes the terminal 100 from its storage.
After each 5G or 6G terminal 100 is successfully attached to the RAN device 200, the 5G or 6G terminals 100 can communicate with each other by using the communication method between the 5G or 6G internet of things terminals of the present invention.
A communication flow between the 5G or 6G internet of things terminals 100 according to an embodiment of the present invention will now be described with reference to fig. 3.
First, in step S301, the 5G or 6G terminal 100 as a sender initiates a service request to the 5G or 6G terminal 100 'as a receiver, and the subnet information module of the terminal 100 adds a subnet communication identifier, a subnet identifier of a subnet to which the terminal 100 and the terminal 100' are respectively attached, and a terminal identifier of the terminal 100 to the service request.
In step S302, the RAN apparatus 200 forwards the service request from the terminal 100 to the mobile management entity 300.
In step S303, the mme subnet control module 301 determines whether the sender terminal and the receiver terminal to be communicated with each other are users of the same subnet and are both attached to the same RAN device by comparing the information in the service request with their stored identifiers of the respective attached RAN devices of the sender terminal 100 and the receiver terminal 100 'and the subnet identifier of the home subnet of the receiver terminal 100'.
If the sender terminal 100 and the receiver terminal 100' are users of the same subnet and are both attached to the same RAN device, the mobility management entity subnet control module 301 sends an intra-RAN subnet communication indication to the RAN device 200 in step S304.
In step S305, the RAN device subnet control module 201 directly pages the receiver terminal 100' within the RAN according to the received intra-RAN subnet communication instruction.
In step S306, in the case that the paging is successful, the receiving-side terminal 100' returns a paging success response to the RAN device subnet control module 201.
In step S307, the RAN device 200 directly forwards the service traffic between the sender terminal 100 and the receiver terminal 100' within the RAN without establishing a tunnel to the user plane network element of the core network.
If the RAN equipment subnet control module 201 does not successfully page the receiving terminal 100', it re-pages N times, for example, according to the paging policy, and reports communication failure if the call is not successful all the time.
If the mme subnet control module 301 determines in step S303 that the sender terminal 100 and the receiver terminal 100' that are to communicate with each other are not users of the same subnet and are both attached to the same RAN device, it still needs to establish a tunnel to a core network user plane network element or forward the service traffic through the tunnel, and the user service traffic needs to be forwarded through the core network user network element.
It is to be understood that the present invention may not be limited to the above-described steps, may include additional steps or may delete steps, and the order of the steps may be different. And the present invention need not perform all of the above-described steps, but may perform only a portion of the steps for a particular purpose or purposes.
According to the attachment method and the communication method of the terminal of the internet of things, and the corresponding attachment system and the communication system, the RAN can directly forward the service flow between the terminal of the sender and the terminal of the receiver in the RAN without forwarding through a user network element of a core network under the condition that the terminal of the sender and the terminal of the receiver which are to be communicated with each other are users of the same subnet and are both attached to the same RAN equipment, so that the communication with ultralow time delay between 6G network objects is realized.
Fig. 4 illustrates an exemplary configuration of a 5G or 6G internet of things terminal 100, a RAN device 200, or a mobile management entity 300, which may implement an embodiment of the present invention. Any of them is an example of a hardware device to which the above-described aspects of the present invention may be applied, and may be any machine configured to perform processing and/or computing. The 5G or 6G internet of things terminal 100, the RAN device 200, or the mobile management entity 300 may be, but is not limited to, a workstation, a server, a desktop computer, a laptop computer, a tablet computer, a Personal Data Assistant (PDA), a smart phone, an in-vehicle computer, or a combination thereof.
As shown in fig. 4, the 5G or 6G internet of things terminal 100, the RAN device 200, or the mobile management entity 300 may include one or more elements connected to or in communication with a bus 402, possibly via one or more interfaces. Bus 402 can include, but is not limited to, an Industry Standard Architecture (ISA) bus, a Micro Channel Architecture (MCA) bus, an enhanced ISA (eisa) bus, a Video Electronics Standards Association (VESA) local bus, a Peripheral Component Interconnect (PCI) bus, and the like. The 5G or 6G internet of things terminal 100, the RAN device 200, or the mobility management entity 300 may include, for example, one or more processors 404, one or more input devices 406, and one or more output devices 408. The one or more processors 404 may be any kind of processor and may include, but are not limited to, one or more general purpose processors or special purpose processors (such as special purpose processing chips). Input device 406 may be any type of input device capable of inputting information to a computing device and may include, but is not limited to, a mouse, a keyboard, a touch screen, a microphone, and/or a remote control. Output device 408 may be any type of device capable of presenting information and may include, but is not limited to, a display, speakers, a video/audio output terminal, a vibrator, and/or a printer.
The 5G or 6G internet of things terminal 100, the RAN device 200, or the mobility management entity 300 may further include or be connected to a non-internet of things terminalA transitory storage device 414, the non-transitory storage device 414 may be any non-transitory and may implement a storage device for data storage, and may include, but is not limited to, a disk drive, an optical storage device, a solid-state memory, a floppy disk, a flexible disk, a hard disk, a magnetic tape or any other magnetic medium, a compact disk or any other optical medium, a cache memory and/or any other storage chip or module, and/or any other medium from which a computer may read data, instructions, and/or code. The 5G or 6G internet of things terminal 100, the RAN device 200, or the mobile management entity 300 may further include a Random Access Memory (RAM)410 and a Read Only Memory (ROM) 412. The ROM 412 may store programs, utilities or processes to be executed in a nonvolatile manner. The RAM 410 may provide volatile data storage and store instructions related to the operation of the 5G or 6G internet of things terminal 100, the RAN device 200, or the mobile management entity 300. The 5G or 6G internet of things terminal 100, the RAN device 200, or the mobility management entity 300 may also include a network/bus interface 416 coupled to a data link 418. The network/bus interface 416 may be any kind of device or system capable of enabling communication with external devices and/or networks, and may include, but is not limited to, a modem, a network card, an infrared communication device, a wireless communication device, and/or a chipset (such as bluetooth)TMDevices, 1302.11 devices, WiFi devices, WiMax devices, cellular communications facilities, etc.).
Various aspects, embodiments, implementations, or features of the foregoing embodiments may be used alone or in any combination. Various aspects of the foregoing embodiments may be implemented by software, hardware, or a combination of hardware and software.
For example, the foregoing embodiments may be embodied as computer readable code on a computer readable medium. The computer readable medium is any data storage device that can store data which can thereafter be read by a computer system. Examples of a computer readable medium include read-only memory, random-access memory, CD-ROMs, DVDs, magnetic tape, hard drives, solid state drives, and optical data storage devices. The computer readable medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.
For example, the foregoing embodiments may take the form of hardware circuitry. Hardware circuitry may include any combination of combinational logic circuitry, clocked storage devices (such as floppy disks, flip-flops, latches, etc.), finite state machines, memories such as static random access memories or embedded dynamic random access memories, custom designed circuits, programmable logic arrays, etc.
Although some embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. An attachment method of an Internet of things terminal comprises the following steps:
the RAN equipment receives an attachment request from a terminal of the Internet of things, wherein the attachment request comprises a subnet identifier of a terminal home subnet and a terminal identifier;
the RAN equipment forwards the attachment request to a mobile management entity;
the mobile management entity sends a response of successful attachment to the terminal through the RAN equipment; and
the mobile management entity subnet control module stores the identifier of the RAN equipment attached to the terminal, the subnet identifier of the home subnet of the RAN equipment, and the terminal identifier.
2. The method for attaching the terminal of the internet of things according to claim 1, further comprising:
if the terminal finishes detaching or does not update the attaching state after a certain time, the mobile management entity subnet control module deletes the terminal from the storage device.
3. A communication method of an Internet of things terminal comprises the following steps:
RAN equipment receives a service request from a sender terminal to a receiver terminal, wherein the service request comprises a subnet communication identifier, a subnet identifier of a subnet to which the sender terminal and the receiver terminal respectively belong, and a terminal identifier of the sender terminal;
the RAN equipment forwards the service request to a mobile management entity;
the mobile management entity subnet control module compares the information in the received service request with stored identifiers of RAN equipment respectively attached to the sender terminal and the receiver terminal and a subnet identifier of a subnet to which the receiver terminal belongs, and judges whether the sender terminal and the receiver terminal are users of the same subnet and are both attached to the same RAN equipment;
if the sender terminal and the receiver terminal are users of the same subnet and are both attached to the same RAN equipment, the mobile management entity subnet control module sends a RAN intra-subnet communication instruction to the RAN equipment;
the RAN equipment subnet control module pages a receiver terminal in the RAN according to the subnet communication indication in the RAN; and
the RAN equipment receives the paging success response from the receiving terminal and then transfers the service flow between the sending terminal and the receiving terminal in the RAN.
4. The communication method of the terminal of the internet of things according to claim 3, further comprising:
if the mobile management entity subnet control module judges that the sender terminal and the receiver terminal are not users of the same subnet and are both attached to the same RAN equipment, a tunnel to a core network user plane network element still needs to be established or service traffic needs to be forwarded through the tunnel, and the user service traffic needs to be forwarded through the core network user network element.
5. The communication method of the terminal of the internet of things according to claim 3 or 4, further comprising:
if the RAN equipment subnet control module does not successfully page the receiver terminal, paging is carried out again according to the paging strategy, and if the paging is always unsuccessful, the communication failure is reported.
6. An attachment system of an internet of things terminal, comprising:
the RAN equipment is used for receiving an attachment request from the terminal of the Internet of things and forwarding the attachment request to the mobile management entity, wherein the attachment request comprises a subnet identifier of a terminal home subnet and a terminal identifier; and
and the mobile management entity is in communication connection with the RAN equipment and comprises a mobile management entity subnet control module which is used for responding to the attachment request, sending a response of successful attachment to the terminal through the RAN equipment and storing the identifier of the RAN equipment attached to the terminal, the subnet identifier of a home subnet of the RAN equipment and the terminal identifier.
7. The attachment system of the internet of things terminal as claimed in claim 6, further comprising:
the terminal of the 5G or 6G Internet of things comprises a subnet information module, and is used for adding a subnet identifier and a terminal identifier of a terminal home subnet in an attachment request when the terminal sends the attachment request to RAN equipment.
8. A communication system of an Internet of things terminal comprises:
the RAN equipment is used for receiving a service request from the terminal of the Internet of things and forwarding the service request to the mobile management entity, wherein the service request comprises a subnet communication identifier, a subnet identifier of a subnet to which a sender and a receiver belong respectively and an identifier of the terminal of the sender;
the mobile management entity is in communication connection with the RAN equipment, and comprises a mobile management entity subnet control module, a receiving terminal subnet control module and a processing module, wherein the mobile management entity subnet control module is used for judging whether the sending terminal and the receiving terminal are users of the same subnet and are attached to the same RAN equipment by comparing information in a received service request with stored identifiers of the RAN equipment to which the sending terminal and the receiving terminal are respectively attached and subnet identifiers of a subnet to which the receiving terminal belongs, and is used for sending a RAN inner subnet communication instruction to the RAN equipment under the condition that the sending terminal and the receiving terminal are users of the same subnet and are attached to the same RAN equipment; and
the RAN equipment also comprises a RAN equipment subnet control module which is used for paging the receiving terminal in the RAN according to the RAN subnet communication instruction and transmitting the service flow between the transmitting terminal and the receiving terminal in the RAN.
9. The communication system of the internet of things terminal as recited in claim 8, further comprising:
the terminal of the 5G or 6G Internet of things comprises a subnet information module which is used for adding a subnet communication identifier, a subnet identifier of a subnet to which the sender and the receiver respectively belong and an identifier of the sender terminal in a service request when the sender terminal sends the service request to the receiver terminal.
10. A computer-readable storage medium having stored thereon instructions that, when executed by a processor, cause the processor to perform the method of attaching of the internet of things terminal of claim 1 or 2 or the method of communicating of the internet of things terminal of any one of claims 3 to 5.
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| CN202010974357.5A CN114269004B (en) | 2020-09-16 | 2020-09-16 | Attachment method and communication method of terminal of Internet of things and corresponding system |
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| CN202010974357.5A CN114269004B (en) | 2020-09-16 | 2020-09-16 | Attachment method and communication method of terminal of Internet of things and corresponding system |
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| CN105745945A (en) * | 2013-11-13 | 2016-07-06 | 华为技术有限公司 | Controlling data transmissions for machine type communications in a mobile communication system |
| CN105991515A (en) * | 2015-01-28 | 2016-10-05 | 普天信息技术有限公司 | Implementation method for service isolation of communication system, terminal and base station |
| CN108476405A (en) * | 2015-12-30 | 2018-08-31 | 德国电信股份有限公司 | Communication system for the communication in the communication network with subnet |
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