CN108833068B - Method for realizing CIoT EPS hybrid optimization under NB-IoT system - Google Patents

Method for realizing CIoT EPS hybrid optimization under NB-IoT system Download PDF

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CN108833068B
CN108833068B CN201810693501.0A CN201810693501A CN108833068B CN 108833068 B CN108833068 B CN 108833068B CN 201810693501 A CN201810693501 A CN 201810693501A CN 108833068 B CN108833068 B CN 108833068B
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王刚
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Jiangsu Sinolte Wireless Technology Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

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Abstract

The invention provides a method for realizing CIoT EPS hybrid optimization under an NB-IoT system, which adopts a mode of completing the configuration of an optimization mode of a bearer by signaling control in the process of establishing the bearer, wherein the process of establishing the bearer comprises a process of establishing the CIoT EPS optimized bearer of a control plane and a process of establishing the CIoT EPS optimized bearer of a user plane, and the two establishing processes are independent of each other; the terminal and the core network complete the establishment of a plurality of bearers and the configuration of the optimized mode attributes of the bearers according to different capabilities of the terminal, and realize the association of the service data and the CIoT EPS optimized bearer through the bearer TFT to form a hybrid optimized mode; the method effectively avoids the problems of control conflict, data loss, service interruption and the like caused by dynamic conversion among optimization modes. Meanwhile, under the condition that the processing complexity of the terminal and the network is not increased, the association of the service data and the bearing of different CIoT EPS optimization modes is simply and quickly realized, the complexity of rules between the terminal and the application layer is reduced, and the requirement on the application layer is reduced.

Description

Method for realizing CIoT EPS hybrid optimization under NB-IoT system
Technical Field
The invention relates to a method for realizing CIoT EPS hybrid optimization under an NB-IoT system.
Background
With the development of the internet of things communication technology, the demand of internet of things services in all aspects of production and life is continuously increased, meanwhile, Low-rate services gradually become the main market development direction of the cellular internet of things in the future, the market is uniformly summarized into a Low Power Wide Area Network (LPWAN) market in the industry, and in the face of LPWAN market demands, the traditional mobile communication technology cannot meet more and more demands of internet of things application services, and as the third wave of information industry development, the internet of things concept is continuously explored and mined in various industries, and simultaneously, the support is continuously provided from the technical aspect. As an emerging technology widely applied around the world, NB-IoT (Narrow Band-Internet of Things) technology is rapidly developed, and has the characteristics of wide coverage, large capacity, low power consumption and low cost, and has become an important support technology for LPWAN. At present, 3GPP (3rd Generation partnership project) has unified NB-IoT technology into LTE technology standard, and the end-to-end industry chain is rapidly developing, which lays a foundation condition for NB-IoT network deployment.
In the NB-IoT technical standard of 3GPP, two EPS optimization modes are defined for CIoT (Cellular Internet of Things) under an EPS (Evolved Packet System) framework for demand characteristics of Internet of Things services: control plane CIoT EPS optimization and user plane CIoT EPS optimization. The control plane CIoT EPS optimizes services mainly oriented to small data packets, and the data packets are bound in control plane signaling, so that a terminal can directly transmit service data to a network without establishing service bearer between a wireless air interface and a base station as well as a core network, thereby simplifying the communication flow between the terminal and the network; the user plane CIoT EPS optimizes services mainly oriented to large data packets, introduces suspension/Resume control of wireless resources on the basis of an original user plane transmission mode of LTE (Long Term Evolution), and reduces signaling overhead of repeated network access of a terminal.
In the NB-IoT technical standard, when a terminal simultaneously supports control plane CIoT EPS optimization and user plane CIoT EPS optimization, the terminal can only support one of the optimization modes at the same time, and the conversion between the two optimization modes needs to be completed through signaling control. That is, for a terminal under control plane CIoT EPS optimization, when service transmission of the terminal needs to use user plane CIoT EPS optimization, a conversion process between control plane CIoT EPS optimization and user plane CIoT EPS optimization must be used, and the terminal can complete service transmission after being converted into user plane CIoT EPS optimization, and vice versa.
The business data generated by the application of the internet of things mainly comprises small data such as electric power meter reading information, GPS information and the like, but with the development of the application of the internet of things, multimedia big data such as short videos, pictures and the like are also incorporated into the transmission of the internet of things in some internet of things industries. In the face of the application of the internet of things with small data and large data, an NB-IoT terminal and a system need to support control plane CIoT EPS optimization and user plane CIoT EPS optimization at the same time, and support the conversion between two optimization modes. Since only the application layer can sense the service type and the size of the data packet, the terminal needs to establish a corresponding non-standardized rule with the application layer to decide to use control plane CIoT EPS optimization or user plane CIoT EPS optimization, which puts higher requirements on the application layer unrelated to the terminal and increases the popularization complexity applied to the internet of things.
The conversion between the control plane CIoT EPS optimization and the user plane CIoT EPS optimization needs to be dynamically converted according to the change of the application service, and both the terminal and the network may initiate the control plane CIoT EPS optimization and the user plane CIoT EPS optimization conversion processes at any time, which may cause control conflict in the system optimization conversion process. Meanwhile, data between the terminal and the network are transmitted in two directions, the terminal and the network cannot determine whether the data of the opposite terminal is completely transmitted, and two optimization conversion processes can be completed within a certain time, so that the system cannot ensure reliable transmission of service data in the conversion process, and the service data is lost or the service is interrupted.
Disclosure of Invention
In view of the above problems of the two CIoT EPS optimization modes, the present invention provides a bearer-based CIoT EPS hybrid optimization method, which enables an NB-IoT terminal and a core network to simultaneously support control plane CIoT EPS optimization and user plane CIoT EPS optimization, and completes selection and differentiation of different optimization modes through bearer, thereby implementing synchronous and fast transmission of various types of data, and solving the problem in the prior art that a system cannot ensure reliable transmission of service data during a conversion process, resulting in loss of service data or service interruption.
The technical solution of the invention is as follows:
a method for realizing CIoT EPS hybrid optimization under an NB-IoT system,
the method comprises the steps that a mode of configuring an optimized mode of a bearer is completed through signaling control in the process of establishing the bearer, wherein the process of establishing the bearer comprises a control plane CIoT EPS optimized bearer establishing process and a user plane CIoT EPS optimized bearer establishing process, and the two establishing processes are independent;
the terminal and the core network complete the establishment of a plurality of bearers and the configuration of the optimized mode attributes of the bearers according to different capabilities of the terminal, and realize the association of the service data and the CIoT EPS optimized bearer through the bearer TFT to form a hybrid optimized mode.
Furthermore, the terminals have different capabilities, namely a multi-interface terminal and a unified interface terminal, wherein the multi-interface terminal refers to an NB-IoT terminal which at least supports two or more IP address configurations, and the terminal application selects different IP addresses as source addresses to send service data; the unified interface terminal refers to an NB-IoT terminal which only supports one IP address configuration, and the terminal application adopts the unified IP address as a source address to send service data.
Further, the control plane CIoT EPS optimized bearer establishment procedure is used for establishing a control plane CIoT EPS optimized bearer between the terminal and the core network, and the establishment of the control plane CIoT EPS optimized bearer is completed based on a standard attachment procedure in a 3GPP standard.
Further, the control plane CIoT EPS optimized bearer establishment process specifically includes:
the terminal sends an attachment request to a core network to initiate an attachment flow and start to establish a control plane CIoT EPS optimized bearer, and indicates the terminal to the core network through a terminal network capability cell in an attachment request signaling and simultaneously support a CIoT EPS optimized mode and a terminal interface capability; for the uniform interface terminal, TFT information is added in the attachment request signaling for the association of the service data and the control plane CIoT EPS optimized bearer;
the core network completes the establishment of an attachment request and a control plane CIoT EPS optimized bearer, marks the established bearer as a control plane CIoT EPS optimized bearer in an attachment response and informs the terminal to use a hybrid optimization mode through an EPS network support capability cell; for the unified interface terminal, the core network carries the TFT information finally confirmed;
the terminal confirms to use the hybrid optimization mode and marks the correspondingly established bearer as a control plane CIoT EPS optimized bearer; and for the uniform interface terminal, storing the TFT information in the attachment response message.
Further, the establishment process of the user plane CIoT EPS optimized bearer is used for establishing the user plane CIoT EPS optimized bearer between the terminal and the core network, and the establishment of the user plane CIoT EPS optimized bearer is completed based on a bearer resource allocation request flow in the 3GPP standard.
Further, the establishment process of the user plane CIoT EPS optimized bearer specifically comprises,
a terminal sends a bearer resource allocation request to a core network to initiate a bearer resource allocation request process and start to establish a user plane CIoT EPS optimized bearer, the terminal adds a user plane CIoT EPS optimized indication in a bearer resource allocation request signaling, and the indication indicates to the core network that the bearer required to be established by the bearer resource allocation request is used for user plane CIoT EPS optimization;
the core network completes the allocation request of the bearing resources and the establishment of the user plane CIoT EPS optimized bearing, and the establishment of the user plane CIoT EPS optimized bearing is completed by a standard activation default bearing and a special bearing flow; for a multi-interface terminal, a core network establishes a default bearer and a special bearer for optimizing a user plane CIoT EPS, wherein an activation default bearer request of the user plane CIoT EPS optimization default bearer carries an IP address newly allocated for the terminal, and an activation special bearer request of the user plane CIoT EPS optimization special bearer carries corresponding TFT information; for a unified interface terminal, a core network only establishes a user plane CIoT EPS optimized special bearer, wherein an activation special bearer request of the user plane CIoT EPS optimized special bearer needs to carry a default identifier, and the default identifier indicates the bearer established by the terminal as the default bearer of the user plane CIoT EPS optimization;
the terminal completes the establishment of different bearers according to different requests of a core network, and for a multi-interface terminal, the terminal needs to start a dual-IP working mode; for the unified interface terminal, the terminal marks the CIoT EPS optimized special bearer as a default bearer optimized by the CIoT EPS of the user plane.
Further, the terminal and the core network need to select a control plane CIoT EPS optimized bearer or a user plane CIoT EPS optimized bearer to transmit data according to the service data information, and the terminal and the core network need to adopt different association judgment modes of the service data and the CIoT EPS optimized bearer according to different capabilities of the terminal.
Further, for a multi-interface terminal, the terminal judges to use a control plane CIoT EPS optimization mode or a user plane CIoT EPS optimization mode according to a source IP address of the service data, and the core network judges to use a control plane CIoT EPS optimization mode or a user plane CIoT EPS optimization mode according to a destination IP address of the service data; when the control plane CIoT EPS optimization mode is used, the transmission is carried out through the control plane CIoT EPS optimization bearer; when the user plane CIoT EPS optimization mode is used, the terminal and the core network need to further select to use the user plane CIoT EPS optimization default bearer or the user plane CIoT EPS optimization dedicated bearer to transmit service data according to the TFT in the user plane CIoT EPS optimization dedicated bearer.
Further, for the unified interface terminal, the terminal and the core network select to use the control plane CIoT EPS optimized bearer or the user plane CIoT EPS optimized bearer for transmission according to the TFT in the control plane CIoT EPS optimized bearer; for the optimized bearer using the user plane CIoT EPS, the terminal and the core network determine whether to use the user plane CIoT EPS optimized bearer marked as a default bearer to complete transmission according to the user plane CIoT EPS optimized bearer TFT.
The invention has the beneficial effects that:
according to the bearer-based CIoT EPS hybrid optimization method, a bearer-level optimization mode control mode is formed by setting optimization mode attributes for bearers, multiple bearers can be established between a terminal and a network dynamically and the corresponding relation between the bearers and control plane CIoT EPS optimization or user plane CIoT EPS optimization can be completed dynamically for terminals with different interface capabilities, and a hybrid optimization mode is formed. By setting a TFT (Traffic Flow Template) of the bearer, the selection of the optimization mode is completed while the selection of the application layer service data transmission bearer is completed.
Compared with the traditional single CIoT EPS optimization mode, the method provided by the invention forms a bearer-level optimization mode control method by defining an optimization mode for the bearer between the terminal and the core network, so that the terminal and the core network can simultaneously support a mixed optimization mode of control plane CIoT EPS optimization and user plane CIoT EPS optimization by utilizing the bearer, and the problems of control conflict, data loss, service interruption and the like caused by dynamic conversion between optimization modes are effectively avoided. Meanwhile, the method effectively utilizes the TFT rule carried in the standard LTE and NB-IoT, simply and quickly realizes the association of the service data and the bearer in different CIoT EPS optimization modes under the condition of not increasing the processing complexity of the terminal and the network, reduces the complexity of the rule between the terminal and the application layer and reduces the requirement on the application layer.
Drawings
Fig. 1 is a schematic diagram of an implementation method of CIoT EPS hybrid optimization under an NB-IoT system in the embodiment of the present invention.
Fig. 2 is a schematic diagram of data transmission under NB-IoT system CIoT EPS hybrid optimization in the embodiment of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Examples
In the bearer-based CIoT EPS hybrid optimization method of the embodiment, the CIoT EPS hybrid optimization includes control plane CIoT EPS optimization and user plane CIoT EPS optimization. In the embodiment method, the optimization mode is applied to the bearer, that is, the bearer is divided into a control plane CIoT EPS optimized bearer and a user plane CIoT EPS optimized bearer according to the optimization mode, the system needs to mark a corresponding optimization mode attribute for the bearer according to different optimization modes, and each bearer can only use one optimization mode. The system needs to make explicit the optimized mode attribute of the bearer through signaling in the bearer establishment process.
The NB-IoT terminals in embodiments are divided into two interface capabilities, namely multi-interface terminals and unified interface terminals. The multi-interface terminal refers to an NB-IoT terminal which supports at least two or more IP address configurations, and a terminal application can select to use different IP addresses as source addresses to send service data. The unified interface terminal refers to an NB-IoT terminal which only supports one IP address configuration, and the terminal application adopts the unified IP address as a source address to send service data.
The method of the embodiment adopts a mode of completing the configuration of the optimized mode of the bearer through signaling control in the process of establishing the bearer, wherein the process of establishing the bearer comprises a process of establishing a control plane CIoT EPS optimized bearer and a process of establishing a user plane CIoT EPS optimized bearer, and the two establishing processes are independent. The terminal and the core network complete the establishment of a plurality of bearers and the configuration of the optimized mode attributes of the bearers according to different capabilities of the terminal, and realize the association of the service data and the CIoT EPS optimized bearer through the bearer TFT to form a hybrid optimized mode, wherein the specific mode is as follows:
control plane CIoT EPS optimized bearer establishment process
The establishment of the control plane CIoT EPS optimized bearer is completed based on the standard attachment flow in the 3GPP standard, and the terminal and the core network should complete the following processing:
(1) the terminal initiates an attachment flow to the core network, wherein the terminal indicates the terminal to support control plane CIoT EPS optimization and user plane CIoT EPS optimization simultaneously to the core network through a terminal network capability cell in an attachment request signaling. Meanwhile, the terminal adds the interface capability indication of the terminal in the terminal network capability cell, and the interface capability indication is used for indicating the terminal interface capability to the core network, namely the terminal is a multi-interface terminal or a uniform interface terminal. For the unified interface terminal, the terminal further needs to add TFT information in the attach request according to the data transmission rule, where the TFT information is used for association between the unified interface terminal and the core network when the control plane CIoT EPS optimized data is transmitted, and the data and the control plane CIoT EPS optimized bearer are associated.
(2) After receiving the attachment request, the core network completes the attachment request processing of the terminal according to the standard attachment flow, establishes a bearer for data transmission, and sends an attachment response signaling to the terminal. The core network needs to mark the established bearer as a control plane CIoT EPS optimized bearer in the attach response signaling, and simultaneously notifies the terminal to use the control plane CIoT EPS optimization and the user plane CIoT EPS optimization at the same time through an EPS network support capability cell, i.e. use a hybrid optimization mode. For the unified interface terminal, the core network also needs to carry the TFT information of the final acknowledgement.
(3) After receiving the attachment response signaling, the terminal confirms that the hybrid optimization mode is currently used according to the EPS network support capability information element in the signaling, and marks the correspondingly established bearer as a control plane CIoT EPS optimized bearer. And for the uniform interface terminal, storing the TFT information in the attachment response message, and using the information for the association of the data and the control plane CIoT EPS optimized bearer.
Second, user plane CIoT EPS optimization bearer establishment process
The establishment of the user plane CIoT EPS optimized bearer is completed based on the bearer resource allocation request flow in the 3GPP standard, and the terminal and the core network should complete the following processes:
(1) the terminal initiates a bearer resource allocation request process to the core network, wherein the terminal indicates to the core network that the bearer required to be established by the bearer resource allocation request is used for user plane CIoT EPS optimization by adding a user plane CIoT EPS optimization indication in a bearer resource allocation request signaling. The terminal further needs to complete TFT information in the bearer resource allocation request signaling according to the data transmission rule, where the TFT information is used for association between data and a user plane CIoT EPS optimization mode bearer when the user plane CIoT EPS optimization data is transmitted between the terminal and the core network.
(2) After receiving the request for allocating bearing resource request, the core network activates the default bearing and special bearing flow according to the standard to complete the processing of the request, establishes the bearing for data transmission, and starts the bearing establishing process with the terminal. For a multi-interface terminal, a core network needs to establish a default bearer and a special bearer for optimizing a user plane CIoT EPS at the same time, wherein the core network needs to independently allocate an IP address different from the IP address for optimizing the control plane CIoT EPS for optimizing the user plane CIoT EPS and inform the terminal of establishing the default bearer for optimizing the user plane CIoT EPS by activating a default bearer request; the core network needs to generate final TFT information for the special bearer, and informs the terminal to establish the special bearer for user plane CIoT EPS optimization by activating the special bearer request, wherein the final TFT information is generated by the core network according to the TFT information carried by the terminal in the bearer resource allocation request signaling. For a unified interface terminal, a core network only establishes a special bearer for user plane CIoT EPS optimization, the core network needs to generate final TFT information for the special bearer, and notifies the terminal to establish the special bearer for user plane CIoT EPS optimization by activating a special bearer request, and the core network in the request signaling should indicate the bearer established by the terminal as a default bearer for user plane CIoT EPS optimization by adding a default identifier.
(3) After receiving the related signaling of the activated bearer, the terminal establishes the related bearer according to different requests of the activated bearer. For a multi-interface terminal, the terminal respectively establishes a default bearer and a special bearer for optimizing a user plane CIoT EPS, starts a dual-IP working mode and saves a TFT for the special bearer; for the unified interface terminal, the terminal only establishes a special bearer optimized by the user plane CIoT EPS, stores the corresponding TFT and marks the bearer as a default bearer optimized by the user plane CIoT EPS according to a default identifier.
Third, the correlation mode of the service data and the CIoT EPS optimized bearer
After the terminal and the core network complete the establishment of the control plane CIoT EPS optimized bearer and the user plane CIoT EPS optimized bearer, when the terminal or the core network needs to transmit data, different association modes can be adopted for terminals with different capabilities.
(1) For a multi-interface terminal, the terminal needs to judge whether a control plane CIoT EPS optimization mode or a user plane CIoT EPS optimization mode is used according to a source IP address of data and a core network needs to judge according to a destination IP address of the data, and when the control plane CIoT EPS optimization mode is used, transmission is carried out through a control plane CIoT EPS optimization bearer. When the user plane CIoT EPS optimization mode is used, the terminal and the core network are matched through a TFT in a CIoT EPS optimization special bearer of the user plane, and if the matching is successful, the CIoT EPS optimization special bearer of the user plane is used for transmission; and if the matching is unsuccessful, the user plane CIoT EPS is used for optimizing the default bearer for transmission.
(2) For the unified interface terminal, the data is matched with the TFT in the control plane CIoT EPS optimized bearer according to rules, and if the matching is successful, the control plane CIoT EPS optimized bearer is used for transmission. And if the matching is unsuccessful, matching the bearer with the CIoT EPS optimized bearer, if the matching is successful, transmitting the bearer by using the corresponding CIoT EPS optimized bearer, and if the matching is unsuccessful, transmitting the bearer by using the CIoT EPS optimized bearer marked as a default bearer.
Based on the above description, to further explain the solution of the present invention, the following is an embodiment of the method for implementing CIoT EPS hybrid optimization under NB-IoT system, which is divided into an embodiment of implementing CIoT EPS hybrid optimization establishment process under NB-IoT system and an embodiment of data transmission under NB-IoT system CIoT EPS hybrid optimization:
as can be seen from fig. 1, in step 401, the terminal first establishes a control plane CIoT EPS optimized bearer for CIoT EPS hybrid optimization by initiating an attach procedure. The terminal carries the terminal network capability and interface capability indication in the attachment request, and indicates that the terminal simultaneously supports control plane CIoT EPS optimization and user plane CIoT EPS optimization, namely UP CIoT and CP CIoT need to be set simultaneously. The interface capability indication of the cell support terminal is also expanded, and the specific modification can be shown in the following table. In addition, TFT information is added to the unified interface terminal according to the data transmission rule.
Table 1: cell structure for expanding terminal network capability in 3GPP
Figure GDA0002825920560000091
In step 402, the core network and the terminal complete the establishment of the control plane CIoT EPS optimized bearer by activating a default bearer flow and confirm that the hybrid optimization mode is currently used. The core network can increase the bearing type mark as the control plane CIoT EPS optimized bearing through expanding and activating the default bearing request message; and informing the terminal of using the CIoT EPS hybrid optimization currently by setting UP CIoT and CP CIoT of the EPS network support capability cell at the same time. In addition, for the unified interface terminal, the core network can expand and activate the default bearer request message to carry the TFT information for final confirmation.
Table 2: activating default bearer request message content in extended 3GPP 24.301
Figure GDA0002825920560000092
In step 403, the terminal initiates a bearer resource allocation request procedure to establish a user plane CIoT EPS optimized bearer, where in the request, the terminal needs to expand a bearer resource allocation request signaling, and adds a user plane CIoT EPS optimization instruction to indicate to the core network that the bearer that needs to be established in this bearer resource allocation request is for user plane CIoT EPS optimization, where the signaling expansion mode may be as follows:
table 3: extending bearer resource allocation request message content in 3GPP 24.301
Figure GDA0002825920560000101
In step 404, after receiving the request for allocating bearer resource request, the core network starts a dedicated bearer activation procedure, and completes a bearer establishment procedure with the terminal according to different capabilities of the terminal, where the terminals with different capabilities include a multi-interface terminal and a unified interface terminal.
In step 405a, for the multi-interface terminal, the core network establishes a default bearer and a dedicated bearer optimized for the user plane CIoT EPS for the terminal by respectively sending a request for activating the default bearer and a request for activating the dedicated bearer, and independently allocates an IP address different from that optimized for the control plane CIoT EPS for the terminal user plane CIoT EPS optimization. In addition, the core network needs to add a bearer type flag to the request for activating the default bearer and the request for activating the dedicated bearer to indicate that the bearer is the user plane CIoT EPS optimized bearer, and the extension mode of the request for activating the default bearer is the same as step 402, and the extension mode of the request for activating the dedicated bearer may be as follows:
table 4: extending the content of the Activate proprietary bearer request message in 3GPP 24.301
Figure GDA0002825920560000102
In step 405b, for the unified interface terminal, the core network establishes a dedicated bearer for user plane CIoT EPS optimization for the terminal only by sending a request for activating the dedicated bearer. The core network needs to indicate the bearer established by the terminal as a default bearer for user plane CIoT EPS optimization by adding a default identifier, and the specific extension mode is as follows.
Table 5: extending the content of the Activate proprietary bearer request message in 3GPP 24.301
Figure GDA0002825920560000111
In step 406, the terminal stores the corresponding identifier and TFT for data transmission in the establishment of the control plane CIoT EPS optimized bearer and the user plane CIoT EPS optimized bearer.
As can be seen from fig. 2, in step 411, when service data needs to be transmitted, different CIoT EPS optimized bearer association manners are adopted for terminals with different capabilities, where the terminals with different capabilities include a multi-interface terminal and a unified interface terminal.
In step 412a, for a multi-interface terminal, first, a CIoT EPS optimization mode to be used is determined according to an IP address of service data, where the terminal is according to a source IP address of the service data and a destination IP address of a core network according to the service data. Specifically, after the establishment of the control plane CIoT EPS optimized bearer and the service plane CIoT EPS optimized bearer is completed, the multi-interface terminal may have at least 2 IP addresses, which respectively correspond to the control plane CIoT EPS optimized default bearer and the service plane CIoT EPS optimized default bearer. When the IP address of the service data is the same as the control plane CIoT EPS optimized default bearer IP, the transmission of the service data uses a control plane CIoT EPS optimized mode; and when the IP address of the service data is the same as the CIoT EPS optimized default bearer IP of the user plane, the service data is transmitted by using a CIoT EPS optimized mode of the user plane.
In step 413a, for the service data using the control plane CIoT EPS optimized mode, the transmission of the service data is completed using the control plane CIoT EPS optimized bearer.
In step 413b, for the service data using the user plane CIoT EPS optimization mode, the terminal needs to match other information of the service data with the TFT corresponding to the user plane CIoT EPS optimization dedicated bearer according to a rule, where the other information may include a source port, a destination port, and the like of the service data.
In step 414a, for the case that the matching between the service data and the TFT corresponding to the CIoT EPS optimized dedicated bearer is successful, the transmission of the service data is completed by using the corresponding CIoT EPS optimized dedicated bearer.
In step 414b, for the case that the matching between the service data and the TFT corresponding to the CIoT EPS optimized dedicated bearer is unsuccessful, the corresponding CIoT EPS optimized default bearer is used to complete the transmission of the service data.
In step 412b, for the unified interface terminal, the terminal matches, according to a rule, other information of the service data with the TFT corresponding to the control plane CIoT EPS optimized bearer, where the other information may include a source port, a destination port, and the like of the service data.
In step 413c, for the case that the matching between the service data and the TFT corresponding to the control plane CIoT EPS optimized bearer is successful, the transmission of the service data is completed by using the control plane CIoT EPS optimized bearer.
In step 413d, for the case that the matching between the service data and the TFT corresponding to the control plane CIoT EPS optimized bearer is unsuccessful, the terminal needs to match other information of the service data with the TFT corresponding to the user plane CIoT EPS optimized bearer according to a rule, where the other information may include a source port and a destination port of the service data.
In step 414c, for the case that the matching between the service data and the TFT corresponding to the CIoT EPS optimized bearer is successful, the corresponding CIoT EPS optimized bearer is used to complete the transmission of the service data.
In step 414d, for the case that the matching between the service data and the TFT corresponding to the CIoT EPS optimized bearer is unsuccessful, the user plane CIoT EPS optimized bearer marked as the default bearer is used to complete the transmission of the service data.

Claims (8)

1. A method for realizing CIoT EPS hybrid optimization under an NB-IoT system is characterized by comprising the following steps:
the method comprises the steps that a mode of configuring an optimized mode of a bearer is completed through signaling control in the process of establishing the bearer, wherein the process of establishing the bearer comprises a control plane CIoT EPS optimized bearer establishing process and a user plane CIoT EPS optimized bearer establishing process, and the two establishing processes are independent;
the terminal and the core network complete the establishment of a plurality of bearers and the configuration of the optimized mode attributes of the bearers according to different capabilities of the terminal, and realize the association of the service data and the CIoT EPS optimized bearer through the bearer TFT to form a hybrid optimized mode;
the terminal application selects different IP addresses as source addresses to send service data, wherein the terminal application has different capabilities, namely a multi-interface terminal and a unified interface terminal, wherein the multi-interface terminal is an NB-IoT terminal which at least supports two or more IP address configurations; the unified interface terminal refers to an NB-IoT terminal which only supports one IP address configuration, and the terminal application adopts the unified IP address as a source address to send service data.
2. The method of implementing CIoT EPS hybrid optimization under NB-IoT systems in accordance with claim 1, wherein: the control plane CIoT EPS optimized bearer establishment process is used for establishing a control plane CIoT EPS optimized bearer between the terminal and the core network, and the establishment of the control plane CIoT EPS optimized bearer is completed based on a standard attachment flow in a 3GPP standard.
3. The method of implementing CIoT EPS hybrid optimization under NB-IoT systems as recited in claim 2, wherein: the control plane CIoT EPS optimized bearer establishment process specifically includes:
the terminal sends an attachment request to a core network to initiate an attachment flow and start to establish a control plane CIoT EPS optimized bearer, and indicates the terminal to the core network through a terminal network capability cell in an attachment request signaling and simultaneously support a CIoT EPS optimized mode and a terminal interface capability; for the uniform interface terminal, TFT information is added in the attachment request signaling for the association of the service data and the control plane CIoT EPS optimized bearer;
the core network completes the establishment of an attachment request and a control plane CIoT EPS optimized bearer, marks the established bearer as a control plane CIoT EPS optimized bearer in an attachment response and informs the terminal to use a hybrid optimization mode through an EPS network support capability cell; for the unified interface terminal, the core network carries the TFT information finally confirmed;
the terminal confirms to use the hybrid optimization mode and marks the correspondingly established bearer as a control plane CIoT EPS optimized bearer; and for the uniform interface terminal, storing the TFT information in the attachment response message.
4. The method of implementing CIoT EPS hybrid optimization under NB-IoT systems in accordance with claim 1, wherein: the establishment process of the CIoT EPS optimized bearer of the user plane is used for establishing the CIoT EPS optimized bearer of the user plane between the terminal and the core network, and the establishment of the CIoT EPS optimized bearer of the user plane is completed based on a bearer resource allocation request process in a 3GPP standard.
5. The method of implementing CIoT EPS hybrid optimization under NB-IoT systems as recited in claim 4, wherein: the procedure of establishing the CIoT EPS optimized bearer in the user plane is specifically,
a terminal sends a bearer resource allocation request to a core network to initiate a bearer resource allocation request process and start to establish a user plane CIoT EPS optimized bearer, the terminal adds a user plane CIoT EPS optimized indication in a bearer resource allocation request signaling, and the indication indicates to the core network that the bearer required to be established by the bearer resource allocation request is used for user plane CIoT EPS optimization;
the core network completes the allocation request of the bearing resources and the establishment of the user plane CIoT EPS optimized bearing, and the establishment of the user plane CIoT EPS optimized bearing is completed by a standard activation default bearing and a special bearing flow; for a multi-interface terminal, a core network establishes a default bearer and a special bearer for optimizing a user plane CIoT EPS, wherein an activation default bearer request of the user plane CIoT EPS optimization default bearer carries an IP address newly allocated for the terminal, and an activation special bearer request of the user plane CIoT EPS optimization special bearer carries corresponding TFT information; for a unified interface terminal, a core network only establishes a user plane CIoT EPS optimized special bearer, wherein an activation special bearer request of the user plane CIoT EPS optimized special bearer needs to carry a default identifier, and the default identifier indicates the bearer established by the terminal as the default bearer of the user plane CIoT EPS optimization;
the terminal completes the establishment of different bearers according to different requests of a core network, and for a multi-interface terminal, the terminal needs to start a dual-IP working mode; for the unified interface terminal, the terminal marks the CIoT EPS optimized special bearer as a default bearer optimized by the CIoT EPS of the user plane.
6. The method of implementing CIoT EPS hybrid optimization under NB-IoT systems in accordance with claim 1, wherein: the terminal and the core network need to select a control plane CIoT EPS optimized bearer or a user plane CIoT EPS optimized bearer to transmit data according to the service data information, and the terminal and the core network need to adopt different association judgment modes of service data and the CIoT EPS optimized bearer according to different capabilities of the terminal.
7. The method of implementing CIoT EPS hybrid optimization under NB-IoT systems as recited in claim 6, wherein: for a multi-interface terminal, the terminal judges whether to use a control plane CIoT EPS optimization mode or a user plane CIoT EPS optimization mode according to a source IP address of service data and a core network according to a destination IP address of the service data; when the control plane CIoT EPS optimization mode is used, the transmission is carried out through the control plane CIoT EPS optimization bearer; when the user plane CIoT EPS optimization mode is used, the terminal and the core network need to further select to use the user plane CIoT EPS optimization default bearer or the user plane CIoT EPS optimization dedicated bearer to transmit service data according to the TFT in the user plane CIoT EPS optimization dedicated bearer.
8. The method of implementing CIoT EPS hybrid optimization under NB-IoT systems as recited in claim 6, wherein: for the unified interface terminal, the terminal and the core network select to use the control plane CIoT EPS optimized bearer or the user plane CIoT EPS optimized bearer for transmission according to the TFT in the control plane CIoT EPS optimized bearer; for the optimized bearer using the user plane CIoT EPS, the terminal and the core network determine whether to use the user plane CIoT EPS optimized bearer marked as a default bearer to complete transmission according to the user plane CIoT EPS optimized bearer TFT.
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Publication number Priority date Publication date Assignee Title
CN112400304B (en) * 2019-05-07 2023-06-13 Oppo广东移动通信有限公司 Information transmission method and device and network equipment
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102325350A (en) * 2011-07-20 2012-01-18 大唐移动通信设备有限公司 Service filtering method and device based on default bearer
CN106330398A (en) * 2016-08-29 2017-01-11 中国联合网络通信集团有限公司 Method and apparatus for determining data transmission mode of service of Internet of Things
WO2017126558A1 (en) * 2016-01-19 2017-07-27 シャープ株式会社 Terminal device, mme, communication method for terminal device, and mme communication method
CN107277842A (en) * 2017-07-25 2017-10-20 中国联合网络通信集团有限公司 A kind of system of selection of data-transmission mode, device and network system
CN107295583A (en) * 2016-04-01 2017-10-24 北京三星通信技术研究有限公司 CIOT control methods and equipment on UE

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102325350A (en) * 2011-07-20 2012-01-18 大唐移动通信设备有限公司 Service filtering method and device based on default bearer
WO2017126558A1 (en) * 2016-01-19 2017-07-27 シャープ株式会社 Terminal device, mme, communication method for terminal device, and mme communication method
CN107295583A (en) * 2016-04-01 2017-10-24 北京三星通信技术研究有限公司 CIOT control methods and equipment on UE
CN106330398A (en) * 2016-08-29 2017-01-11 中国联合网络通信集团有限公司 Method and apparatus for determining data transmission mode of service of Internet of Things
CN107277842A (en) * 2017-07-25 2017-10-20 中国联合网络通信集团有限公司 A kind of system of selection of data-transmission mode, device and network system

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