WO2024092379A1 - Data transmission method and apparatus, device, and storage medium - Google Patents

Abstract

The present application relates to the field of communications. Disclosed are a data transmission method and apparatus, a device, and a storage medium. The method comprises: reporting subscription data to a subscription device, wherein the subscription data corresponds to at least two reporting modes, and the reporting modes are determined at least according to the minimum interval time field carried in a subscription request sent by the subscription device.

Description

Data transmission method, device, equipment and storage medium Technical Field

The present application relates to the field of communication technology, and in particular to a data transmission method, device, equipment and storage medium.

Background technique

In the IoT communication system, the subscribing device can initiate a subscription request to the subscribed device and wait for the subscription response from the subscribed device to activate or cancel the subscription. After activating the subscription, the subscribed device needs to report the subscription data to the subscribing device.

The timing of reporting subscription data is limited according to the subscription request and subscription response. The minimum interval for reporting subscription data is requested by the subscribing device, and the maximum interval for reporting subscription data is negotiated and determined by the subscribing device and the subscribed device. The subscribed device will report subscription data at a fixed frequency within the minimum interval and the maximum interval.

If the subscription data is not received within the maximum interval, the subscription device will automatically cancel the subscription; if the subscription device wants to obtain the subscription data again, it needs to re-initiate the subscription. Based on the above subscription data reporting method, on the one hand, it may lead to invalid reporting of the subscribed device (for example, the subscription device does not need to obtain the subscription data at a certain moment), and on the other hand, it will also lead to multiple repeated subscription requests for the same subscription data, which makes the reporting efficiency of subscription data low.

Summary of the invention

The embodiments of the present application provide a data transmission method, apparatus, device and storage medium, which provide at least two reporting modes for subscription data to improve the reporting efficiency of subscription data. The technical solution is as follows:

According to one aspect of the present application, a data transmission method is provided, the method being executed by a subscribed device, the method comprising:

Report subscription data to the subscription device;

There are at least two reporting modes corresponding to the subscription data, and the reporting mode is determined at least according to the minimum interval time field carried in the subscription request sent by the subscription device.

According to one aspect of the present application, a data transmission method is provided, the method being executed by a subscription device, the method comprising:

Receive subscription data reported by the subscribed device;

There are at least two reporting modes corresponding to the subscription data, and the reporting mode is determined at least according to the minimum interval time field carried in the subscription request sent by the subscription device.

According to one aspect of the present application, a data transmission device is provided, the device comprising:

Reporting module, used to report subscription data to the subscription device;

There are at least two reporting modes corresponding to the subscription data, and the reporting mode is determined at least according to the minimum interval time field carried in the subscription request sent by the subscription device.

According to one aspect of the present application, a data transmission device is provided, the device comprising:

A receiving module, used to receive subscription data reported by the subscribed device;

There are at least two reporting modes corresponding to the subscription data, and the reporting mode is determined at least according to the minimum interval time field carried in the subscription request sent by the subscription device.

According to one aspect of the present application, a subscribed device is provided, which includes a memory and a processor; at least one program code is stored in the memory, and the program code is loaded and executed by the processor to implement the data transmission method as described above.

According to one aspect of the present application, a subscription device is provided, which includes a memory and a processor; at least one program code is stored in the memory, and the program code is loaded and executed by the processor to implement the data transmission method as described above.

According to one aspect of the present application, a computer-readable storage medium is provided, in which a computer program is stored. The computer program is used to be executed by a processor to implement the data transmission method as described above.

According to one aspect of the present application, a chip is provided, which includes a programmable logic circuit and/or program instructions, and is used to implement the data transmission method as described above when an electronic device equipped with the chip is running.

According to one aspect of the present application, a computer program product is provided. The computer program product includes computer instructions. The computer instructions are stored in a computer-readable storage medium. A processor reads and executes the computer instructions from the computer-readable storage medium to implement the data transmission method as described above.

The technical solution provided by the embodiments of the present application includes at least the following beneficial effects:

At least two reporting modes are provided for subscription data, thereby providing multiple options for the subscribed device, so as to improve the reporting efficiency of subscription data and meet different subscription requirements of both parties regarding subscription data. Among them, the reporting mode of subscription data is determined at least according to the minimum time interval field carried in the subscription request, such as the reporting mode is determined according to the minimum time interval field and the maximum time interval field carried in the subscription request, so as to avoid the negotiation process between the subscribing device and the subscribed device regarding the maximum time interval of subscription data.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 is a schematic diagram of a subscription process provided by an exemplary embodiment of the present application;

FIG2 is a schematic diagram of a data model of a terminal provided by an exemplary embodiment of the present application;

FIG3 is a flow chart of a data transmission method provided by an exemplary embodiment of the present application;

FIG4 is a flow chart of a data transmission method provided by an exemplary embodiment of the present application;

FIG5 is a flow chart of a data transmission method provided by an exemplary embodiment of the present application;

FIG6 is a flow chart of a data transmission method provided by an exemplary embodiment of the present application;

FIG7 is a flow chart of a data transmission method provided by an exemplary embodiment of the present application;

FIG8 is a flow chart of a data transmission method provided by an exemplary embodiment of the present application;

FIG9 is a flow chart of a data transmission method provided by an exemplary embodiment of the present application;

FIG10 is a schematic diagram of a subscription request apparatus provided by an exemplary embodiment of the present application;

FIG11 is a schematic diagram of a subscription request apparatus provided by an exemplary embodiment of the present application;

FIG. 12 is a block diagram of a communication device provided by an exemplary embodiment of the present application.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present application more clear, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, and NR system. Evolved systems, LTE-based access to unlicensed spectrum (LTE-U) systems, NR-based access to unlicensed spectrum (NR-U) systems, non-terrestrial communication networks (NTN) systems, universal mobile telecommunication systems (UMTS), wireless local area networks (WLAN), wireless fidelity (WiFi), fifth-generation communication (5th-Generation, 5G) systems or other communication systems, etc.

With the development of communication technology, mobile communication systems will not only support traditional communications, but also support communications such as the Internet of Things (IoT). The embodiments of the present application can be applied to IoT communication systems.

The IoT communication system includes multiple terminals (or devices), and information exchange and communication can be achieved between every two terminals.

The terminal may also be referred to as User Equipment (UE). The terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future-evolved Public Land Mobile Network (PLMN) network, etc.

In the embodiments of the present application, the terminal can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (for example, on airplanes, balloons and satellites, etc.).

In the embodiments of the present application, the terminal may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

As an example but not limitation, in the embodiments of the present application, the terminal may also be a wearable device. Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are fully functional, large in size, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.

It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and/or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship.

The terms used in the implementation mode of this application are only used to explain the specific embodiments of this application, and are not intended to limit this application. The terms "first", "second", "third" and "fourth" in the specification and claims of this application and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

It should be understood that the "indication" mentioned in the embodiments of the present application can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.

In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between two items, or an association relationship between the two items, or a relationship of indication and being indicated, configuration and being configured, etc.

In the embodiments of the present application, "pre-definition" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including subscribing devices and subscribed devices), and the present application does not limit the specific implementation method. For example, pre-definition can refer to what is defined in the protocol.

FIG. 1 is a schematic diagram of a subscription process provided by an exemplary embodiment of the present application.

In the IoT communication system, the subscribing device can initiate a subscription request to the subscribed device and wait for the subscription response from the subscribed device to activate or cancel the subscription. Taking the subscribing device as the subscription initiator and the subscribed device as the subscription responder as an example, the subscription process includes the following steps:

Step 1: The subscription initiator initiates a subscription request to the subscription responder.

Illustratively, the subscription request is used to request the subscription responder to subscribe to the target resource, the target resource may specifically include attributes and/or events, and the requested attributes and/or events may be one or more. Optionally, the subscription request carries at least one field, and the at least one field is used to indicate the resource information of this subscription.

The parameter fields carried in the subscription request are shown in Table 1:

Table 1

in:

When the value of the KeepSubscriptions field is False, all existing subscriptions from the subscription initiator are terminated.

The minimum interval time (MinIntervalFloor) field is used to indicate the lower limit (lowest) minimum interval value of the request. It can also be understood that the value of the minimum interval time field is used to indicate the boundary value of the minimum reporting time interval of the request, and the boundary value is in seconds (s). According to this field, when the subscription responder needs to report multiple data, if the reporting time interval defined by the subscription responder for multiple data is less than the minimum interval time, the multiple data will be cached and reported once after the minimum interval time is reached.

The MaxIntervalCeil field is used to indicate the upper limit (highest) maximum interval value of the request. It can also be understood that the value of the MaxInterval field is used to indicate the boundary value of the maximum reporting timeout of the request, which is in seconds (s). According to this field, the subscription responder should report data at least once within a time that does not exceed the boundary value.

The AttributeRequests field is used to indicate a list of zero or more request paths for cluster attribute data. The cluster optionally includes two roles: the client and the server. The client belongs to the control end, and the server belongs to the controlled end.

The DataVersionFilters field is used to indicate a list of zero or more cluster instance data versions. Optionally, the DataVersionFilters field is optional when the attribute request list exists. If the data version (DataVersion) of the data reported twice is the same, only the DataVersion is reported the second time, and the attribute value does not need to be reported.

The EventRequests field is used to indicate a list of zero or more request paths for cluster events.

The EventFilters field is used to indicate a list of zero or more minimum event numbers for each specific node, which can also be understood as the filtering conditions for requesting event reporting.

When the value of the FabricFilters field is true, the data read from the FabricScope list is limited to the accessed FabricDomain.

In some embodiments, the subscription process is based on the Matter protocol.

Among them, the Matter protocol, also known as Project Connected Home over IP, is an open source standard project for smart homes that aims to develop and promote a new connection protocol to simplify the development costs of smart home device vendors and improve the compatibility between smart home products from different manufacturers. By building on the Internet Protocol, the Matter protocol will support communication between smart home devices, mobile applications, and cloud services, defining a specific set of Internet Protocol-based network technologies for devices.

In the Matter protocol, the data model of the device can be referred to Figure 2, as follows:

Node: represents a device node and belongs to a logical device;

Endpoint: A node contains multiple endpoints, each of which represents a service instance or a virtual device. The device type corresponding to the endpoint can be indicated by device_type;

Cluster: An endpoint contains multiple clusters. Clusters are elements for building a functional set. Clusters can optionally include two roles: user side and service side. The user side belongs to the control side, and the service side belongs to the controlled side.

Attribute: A cluster contains 0 or more attributes, which are used to describe the functional units in the functional set;

Command: A cluster contains 0 or more commands, which are used to describe the control of functional units;

Event: A cluster contains 0 or more events. Events are used to describe the records of specific behaviors that have occurred in the past of a functional unit.

Taking a node representing a car device as an example, the data model of the device is described as follows. The device type of the root node (RootNode) of the car device is stored under Endpoint 0 (Endpoint0), and the air conditioning device type of the car device is stored under Endpoint 5 (Endpoint5).

In some embodiments, the clusters included in endpoint 5 include a temperature control cluster and a fan cluster. The attributes included in the temperature control cluster may optionally include temperature attribute values, the commands included in the temperature control cluster may optionally include temperature increase commands and temperature decrease commands, and the events included in the temperature control cluster may optionally include temperature abnormality alarm events.

Exemplarily, the attribute request field can be expressed as follows: AttributeRequests[endpoint-id/cluster-id/attribute-id, endpoint-id/cluster-id/attribute-id,…]; the event request field can be expressed as follows: EventRequests[endpoint-id/cluster-id/event-id, endpoint-id/cluster-id/event-id,…].

It should be understood that the above is only an illustrative example and does not limit the present application. Different data models can be formed for different types of devices or different devices of the same type, and the data model can be set according to actual needs.

Step 2: The subscription responder sends the first data report to the subscription initiator.

After receiving the subscription request initiated by the subscription initiator, the subscription responder needs to report the data once.

Optionally, in the first data reporting, the subscription responder may report the resource information to be subscribed according to the attribute request field and the event request field carried in the subscription request.

Step 3: The subscription initiator reports the success or failure status to the subscription responder.

After receiving the data reported by the subscription responder, the subscription initiator can determine whether the status is successful or not based on the first data report. Optionally, step 3 can be implemented as follows: the subscription initiator sends a success status message to the subscription responder.

Step 4: The subscription responder confirms whether to return a subscription response based on the status information returned by the subscription initiator.

Illustratively, the subscription responder can determine whether to return a subscription response to the subscription initiator based on the received status information. Optionally, after receiving the success status information returned by the subscription initiator, the subscription responder determines that a subscription response needs to be returned to the subscription initiator and generates parameter data of the subscription response.

Step 5: After receiving the success status sent by the subscription initiator, the subscription responder returns the subscription response.

Indicatively, the subscription responder sends the generated parameter data to the subscription initiator via a subscription response message. The parameter fields carried in the subscription response are shown in Table 2:

Table 2

Parameter fields Field Type Mandatory/Optional describe Subscription ID uint32 Enforcement Used to identify a subscription Maximum interval uint16 Enforcement Maximum reporting timeout for the final subscription decision

in:

The Subscription ID field is used to identify a subscription. The Subscription ID field is generated based on a subscription request sent by a subscription initiator to a subscription responder.

The MaxInterval field is used to indicate the maximum time interval finally determined by the subscription initiator and the subscription responder after negotiation. It can also be understood that the value of the MaxInterval field is used to indicate the boundary value of the negotiated maximum reporting timeout, which is in seconds (s). According to this field, the subscription responder should make the second data report within a time not exceeding the boundary value.

Step 6: The subscription responder sends a second data report to the subscription initiator.

According to the above content, after confirming the subscription response is returned to the subscription initiator, the subscription responder sends a second data report to the subscription initiator. The second data report should be completed within a time not exceeding the boundary value indicated by the maximum interval field.

Step 7: The subscription initiator sends a status response to the subscription responder.

Indicatively, after receiving the second data report sent by the subscription responder, the subscription initiator will return a status response to the subscription responder to achieve the purpose of keeping the subscription connection alive.

Referring to the above content, based on step 1 and step 5, the reporting time of the second data report needs to be determined according to the minimum interval field carried in the subscription request and the maximum interval field carried in the subscription response. In the related art, the duration indicated by the minimum interval field ≤ the duration indicated by the maximum interval field ≤ MAX (60min, the duration indicated by the maximum interval field), that is, MinIntervalFloor = <MaxInterval < = MAX (60min, MaxIntervalCeil).

The maximum time interval for the second data report is determined by negotiation between the subscription initiator and the subscription responder, and shall not exceed the maximum value of 60 minutes and the duration indicated by the maximum interval field carried in the subscription request. For example, if the duration indicated by the maximum interval field is 120 minutes, the negotiated maximum time interval shall not exceed 120 minutes; for another example, if the duration indicated by the maximum interval field is 30 minutes, the negotiated maximum time interval shall not exceed 60 minutes.

Based on this, the subscription responder will report data at a fixed frequency within the maximum interval and the maximum interval. If the report information is not received within the maximum interval, the subscription initiator will automatically cancel the subscription. Exemplarily, the subscription initiator sends a subscription request to the subscription responder, and the keep subscription field carried in the subscription request is false, thereby canceling the subscription.

At this point, if the subscription initiator wishes to obtain the reported information again, it needs to re-initiate the subscription request.

Based on the above reporting method, on the one hand, invalid reporting may be caused by the subscription responder, such as the subscription initiator does not need to obtain the subscription data at a certain moment. It should be understood that in some embodiments, there may be some special subscription requirements of the subscription initiator, and the reporting method of reporting data at a fixed frequency in the related technology cannot meet its needs. For example, the subscription initiator only hopes to obtain the reported data when the subscription data changes, thereby reducing the frequency of data reporting and reducing the power consumption of both parties.

On the other hand, based on the above reporting method, if the subscription responder is unable to report data within the maximum interval, or the subscription initiator fails to receive the reported data within the maximum time interval due to any reason, the subscription will be cancelled, resulting in multiple repeated subscription requests for the same subscription data, which will also make the reporting efficiency of subscription data low.

An embodiment of the present application provides a data transmission method, wherein the subscription data involved can also be understood as the second data reporting performed by the subscription responder in FIG. 1 to the subscription initiator.

FIG3 shows a flow chart of a data transmission method provided by an exemplary embodiment of the present application. The method is executed by a subscribed device and includes the following steps:

Step 102: Report subscription data to the subscription device.

Illustratively, there are at least two reporting modes corresponding to subscription data, and the reporting mode is determined at least according to the minimum interval time field carried in the subscription request sent by the subscription device.

The subscription data is data corresponding to the subscription relationship established between the subscribing device and the subscribed device. Referring to the above content, before executing step 102, a subscription process needs to be performed between the subscribing device and the subscribed device.

It can be understood that before step 102: the subscribing device sends a subscription request to the subscribed device, the subscription request is used to request a new subscription relationship; the subscribed device sends a subscription response to the subscribing device, the subscription response is used to inform the subscribing device that the subscription relationship indicated by the subscription request has been established. Based on this, the subscription data is the data corresponding to the subscription relationship indicated in the above subscription request and subscription response.

After establishing a subscription relationship, the subscribed device can report subscription data to the subscribing device. There are at least two reporting methods for subscription data. Optionally, the reporting methods for subscription data include the following:

Report when the state of the attributes and/or events subscribed to by the subscribing device changes;

In this reporting mode, the subscribed device reports the subscription data only when the state of the subscribed attribute and/or event changes. For example, the subscribed device is an induction lamp, the subscribing device is a mobile terminal, and the subscribed attribute is a switch attribute. The induction lamp lights up when a person passes by and turns off after the person leaves for a period of time. In this case, the induction lamp reports the subscription data to the mobile terminal only when the lamp lights up or turns off.

Based on this, the subscribed device does not need to report at a fixed frequency, and the subscribing device does not need to subscribe to the same subscription data multiple times, which will reduce the reporting frequency of subscription data, avoid invalid reporting of subscription data, and thus improve the reporting efficiency of subscription data.

Report at specified intervals.

Illustratively, the specified duration may be determined according to a minimum interval field carried in a subscription request, or according to a maximum interval field carried in a subscription request, or according to a maximum interval field carried in a subscription response corresponding to the subscription request.

In some embodiments, the subscription data is reported after a first time interval, and the first time interval is determined according to the minimum time interval field. In other embodiments, the subscription data is reported after a second time interval, and the second time interval is determined according to the maximum time interval field carried in the subscription request, or the second time interval is determined according to the maximum time interval field carried in the subscription response corresponding to the subscription request.

According to the foregoing, the reporting method of subscription data is determined at least according to the minimum interval field carried in the subscription request. Optionally, the reporting method is determined according to the minimum interval field and the maximum interval field carried in the subscription request; or, the reporting method is determined according to the minimum interval field carried in the subscription request and the maximum interval field carried in the subscription response corresponding to the subscription request.

Among them, when determining the subscription relationship, the two subscribers can determine the specific reporting method of the subscription data according to the subscription request, or according to the values of the fields in the subscription request and the subscription response. That is, the two subscribers can determine the reporting method based only on the subscription request, or the two subscribers can determine the reporting method based on the subscription request and the subscription response. These two determination methods will be described in detail later, and are omitted here.

Optionally, the default value of the minimum interval time field is the first value, and the default value of the maximum interval time field carried in the subscription request is the second value; or, the default value of the minimum interval time field is the first value, and the default value of the maximum interval field carried in the subscription response corresponding to the subscription request is the second value.

In some embodiments, the first value is 0 and the second value is 0×FFFF.

For example, the subscribing device sends a subscription request to the subscribed device, and the subscription request carries a minimum interval field and a maximum interval field. In the case where no specific values are assigned to these two fields, the minimum interval field is assumed to be the first value and the maximum interval field is assumed to be the second value.

With reference to the above content, the following are the implementation methods of various data transmission methods:

When MinIntervalFloor = 0, MaxIntervalCeil or MaxInterval = 0×FFFF, the subscribed device reports subscription data when the status of the attributes and/or events subscribed by the subscribing device changes;

When MinIntervalFloor!=0, MaxIntervalCeil or MaxInterval=0×FFFF, the subscribed device reports the subscription data at the frequency set by MinIntervalFloor; if the subscription data is not reported within the set MaxIntervalCeil or MinIntervalFloor time, the subscribing device can wait for the subscribed device to report the subscription data when the status of the subscribed attributes and/or events changes;

When MinIntervalFloor = 0, MaxIntervalCeil or MaxInterval! = 0×FFFF, the subscribed device only needs to report the subscription data within the MaxInterval time range. If the subscribed device does not report the subscription data or the subscribing device does not receive the subscription data after MaxIntervalCeil or MaxInterval time, the subscribing device automatically cancels the subscription;

When MinIntervalFloor! = 0, MaxIntervalCeil! = 0×FFFF, the subscribed device reports the subscription data at the frequency set by MinIntervalFloor; if the subscribed device does not report the subscription data or the subscribing device does not receive the subscription data within the set MinIntervalFloor time, and the subscribed device does not report the subscription data or the subscribing device does not receive the subscription data beyond the time defined by MaxIntervalCeil, the subscribing device automatically cancels the subscription.

It should be understood that the above examples are merely illustrative examples and do not constitute a specific limitation on the present application; other implementation methods that can provide at least two reporting methods based on a subscription request, or based on the values of fields in a subscription request and a subscription response are all within the scope of protection of the present application and will not be described in detail.

In summary, in the data transmission method provided in the embodiment of the present application, at least two reporting methods are provided for subscription data, thereby providing multiple options for the subscribed device to improve the reporting efficiency of subscription data and meet the different subscription requirements of the subscribing parties regarding subscription data. Among them, the reporting method of subscription data is determined at least according to the minimum time interval field carried in the subscription request, such as the reporting method is determined according to the minimum time interval field and the maximum time interval field carried in the subscription request, so as to avoid the negotiation process between the subscribing device and the subscribed device regarding the maximum time interval of the subscription data.

FIG4 shows a flow chart of a data transmission method provided by an exemplary embodiment of the present application. The method is executed by a subscription device and includes the following steps:

Step 202: Receive subscription data reported by the subscribed device.

Illustratively, there are at least two reporting modes corresponding to subscription data, and the reporting mode is determined at least according to the minimum interval time field carried in the subscription request sent by the subscription device.

The subscription data is data corresponding to the subscription relationship established between the subscribing device and the subscribed device. Schematically, before executing step 202, a subscription process needs to be performed between the subscribing device and the subscribed device. The specific description can refer to the above content and will not be repeated here.

Optionally, the subscription data may be reported in the following ways: reporting when the state of the attribute and/or event subscribed by the subscribing device changes; reporting at intervals of a specified duration.

The specified duration may be determined based on the minimum interval field carried in the subscription request, or based on the maximum interval field carried in the subscription request, or based on the maximum interval field carried in the subscription response corresponding to the subscription request.

According to the foregoing, the reporting method of subscription data is determined at least according to the minimum interval field carried in the subscription request. Optionally, the reporting method is determined according to the minimum interval field and the maximum interval field carried in the subscription request; or, the reporting method is determined according to the minimum interval field carried in the subscription request and the maximum interval field carried in the subscription response corresponding to the subscription request.

Among them, when determining the subscription relationship, the two subscribers can determine the specific reporting method of the subscription data according to the subscription request, or according to the values of the fields in the subscription request and the subscription response. That is, the two subscribers can determine the reporting method based only on the subscription request, or the two subscribers can determine the reporting method based on the subscription request and the subscription response. These two determination methods will be described in detail later, and are omitted here.

Optionally, the default value of the minimum interval time field is the first value, and the default value of the maximum interval time field carried in the subscription request is the second value; or, the default value of the minimum interval time field is the first value, and the default value of the maximum interval field carried in the subscription response corresponding to the subscription request is the second value.

In some embodiments, the first value is 0 and the second value is 0×FFFF.

For example, the subscribing device sends a subscription request to the subscribed device, and the subscription request carries a minimum interval field and a maximum interval field. In the case where no specific values are assigned to these two fields, the minimum interval field is assumed to be the first value and the maximum interval field is assumed to be the second value.

For examples of determining a specific reporting method for subscription data based on a subscription request, or based on the values of fields in a subscription request and a subscription response, please refer to the aforementioned content and will not be repeated here.

It should be understood that the above examples are merely illustrative examples and do not constitute a specific limitation on the present application; other implementation methods that can provide at least two reporting methods based on a subscription request, or based on the values of fields in a subscription request and a subscription response are all within the scope of protection of the present application and will not be described in detail.

In summary, in the data transmission method provided in the embodiment of the present application, at least two reporting methods are provided for subscription data, thereby providing multiple options for the subscribed device to improve the reporting efficiency of subscription data and meet the different subscription requirements of the subscribing parties regarding subscription data. Among them, the reporting method of subscription data is determined at least according to the minimum time interval field carried in the subscription request, such as the reporting method is determined according to the minimum time interval field and the maximum time interval field carried in the subscription request, so as to avoid the negotiation process between the subscribing device and the subscribed device regarding the maximum time interval of the subscription data.

FIG. 5 shows a flow chart of a data transmission method provided by an exemplary embodiment of the present application.

The subscription data is the data corresponding to the subscription relationship established between the subscribing device and the subscribed device. Based on this, in order to realize the transmission of subscription data, the subscribing device and the subscribed device need to first perform the subscription process to clarify the subscription attributes and/or events, so that the subscribed device can report the subscription data based on the established subscription relationship.

Schematically, the subscription process between the subscribing device and the subscribed device includes the following:

The subscribing device sends a subscription request to the subscribed device, where the subscription request is used to request a new subscription relationship; the subscribed device sends a subscription response to the subscribing device, where the subscription response is used to inform the subscribing device that the subscription relationship indicated by the subscription request has been established.

Subsequently, the subscribed device may report the data corresponding to the subscription relationship according to the reporting method determined in the at least two reporting methods.

Illustratively, the data transmission method provided in the embodiment of the present application includes the following steps:

Step 302: The subscribed device reports subscription data to the subscribing device.

Illustratively, there are at least two reporting modes corresponding to subscription data, and the reporting mode is determined at least according to the minimum interval time field carried in the subscription request sent by the subscription device.

Optionally, the subscription data may be reported in the following ways: reporting when the state of the attribute and/or event subscribed by the subscribing device changes; reporting at intervals of a specified duration.

For the description of the reporting method, please refer to the above content and will not be repeated here.

According to the foregoing, the reporting method of subscription data is determined at least according to the minimum interval field carried in the subscription request. Optionally, the reporting method is determined according to the minimum interval field and the maximum interval field carried in the subscription request; or, the reporting method is determined according to the minimum interval field carried in the subscription request and the maximum interval field carried in the subscription response corresponding to the subscription request.

Among them, when determining the subscription relationship, the two subscribers can determine the specific reporting method of the subscription data according to the subscription request, or according to the values of the fields in the subscription request and the subscription response. That is, the two subscribers can determine the reporting method based only on the subscription request, or the two subscribers can determine the reporting method based on the subscription request and the subscription response, which will be described in detail after the embodiments of this application.

Optionally, the default value of the minimum interval time field is the first value, and the default value of the maximum interval time field carried in the subscription request is the second value; or, the default value of the minimum interval time field is the first value, and the default value of the maximum interval field carried in the subscription response corresponding to the subscription request is the second value.

In some embodiments, the first value is 0 and the second value is 0×FFFF.

For example, a subscribing device sends a subscription request to a subscribed device, and the subscription request carries a minimum interval field and a maximum interval field. If no specific values are assigned to these two fields, the minimum interval field is assumed to be the first value, and the maximum interval field is assumed to be the second value.

For examples of determining a specific reporting method for subscription data based on a subscription request, or based on the values of fields in a subscription request and a subscription response, please refer to the aforementioned content and will not be repeated here.

It should be understood that the above examples are merely illustrative examples and do not constitute a specific limitation on the present application; other implementation methods that can provide at least two reporting methods based on a subscription request, or based on the values of fields in a subscription request and a subscription response are all within the scope of protection of the present application and will not be described in detail.

It should be understood that in the above embodiment, the steps on the subscription device side and the steps on the subscribed device side can be independently implemented as an embodiment of the data transmission method. For specific explanations, please refer to the above content.

To sum up, in the data transmission method provided in the embodiment of the present application, at least two reporting methods are provided for subscription data, thereby providing multiple options for the subscribed device to improve the reporting efficiency of subscription data and meet the different subscription requirements of the subscribers regarding subscription data.

The reporting method of the subscription data is determined at least according to the minimum time interval field carried in the subscription request. Optionally, the reporting method is determined according to the minimum time interval field and the maximum time interval field carried in the subscription request; or, the reporting method is determined according to the minimum time interval field carried in the subscription request and the maximum time interval field carried in the subscription response corresponding to the subscription request.

It can be understood that the subscribers can determine the reporting method based only on the subscription request, or the subscribers can determine the reporting method based on the subscription request and the subscription response, as follows:

(1) The subscribers determine the reporting method based on the subscription request.

Optionally, in this manner, the data transmission method provided in the embodiment of the present application further includes:

The subscribing device sends a subscription request to the subscribed device. The subscription request carries a minimum interval time field and a maximum interval time field. The reporting method of the subscription data is determined according to the minimum interval time field and the maximum interval time field.

In some embodiments, if the minimum interval time field and the maximum interval time field are not specified in the subscription request, the minimum interval time field is assumed to be the first value (such as 0) and the maximum interval time field is assumed to be the second value (such as 0×FFFF). That is, MinIntervalFloor = 0, MaxIntervalCei = 0×FFFF, and the reporting method is determined as: reporting when the state of the attribute and/or event subscribed by the subscribing device changes.

It should be understood that the subscription request may also specify that the minimum interval time field is the first value and the maximum interval time field is the second value. In this case, the reporting method is still determined as: reporting when the status of the attributes and/or events subscribed by the subscribing device changes.

In some other embodiments, the minimum interval time field is the third value, and the maximum interval time field is the second value. The third value is a value different from the first value and the second value, and the third value is not equal to the first value, which can be understood as MinIntervalFloor! = 0. Exemplarily, MinIntervalFloor! = 0, MaxIntervalCeil = 0×FFFF, and the reporting method is determined as: reporting after the first interval, and the first interval is indicated by the third value.

In this case, the reporting method also includes: in the case where the subscription data is not reported after the first time interval, reporting is performed when the state of the attribute and/or event subscribed by the subscribing device changes. That is, if the subscription data is not reported after the first time interval (the subscribing device does not receive the subscription data, or the subscribed device does not report), the subscribing device can continue to wait, and the reporting of the subscription data by the subscribed device will change from reporting after the first time interval (fixed interval reporting) to reporting when the state of the subscribed attribute and/or event changes (non-fixed interval reporting).

In some other embodiments, the minimum interval time field is the first value, and the maximum interval time field is the fourth value. The fourth value is a value different from the first value and the second value, and the fourth value is not equal to the second value, which can be understood as MaxIntervalCeil! = 0. Exemplarily, MinIntervalFloor = 0, MaxIntervalCeil! = 0×FFFF, and the reporting method is determined as: reporting after the second interval, and the second interval is indicated by the fourth value.

In this case, if the subscription data report is still not received after the second time interval (the subscribing device does not receive the subscription data, or the subscribed device does not report), the subscribing device may automatically cancel the subscription. Optionally, if the subscription data is not received after the second time interval, the subscribing device sends a first indication message to the subscribed device, and the first indication message is used to instruct the subscribing device to cancel the subscription of the subscription data of the subscribed device.

In some other embodiments, the minimum interval time field is the fifth value, and the maximum interval time field is the sixth value. Among them, the fifth value and the sixth value are both values different from the first value and the second value, and the fifth value is not equal to the first value, and the sixth value is not equal to the second value, which can be understood as MinIntervalFloor! = 0, MaxIntervalCeil! = 0×FFFF. It should be understood that the fifth value can be equal to the third value, and the sixth value can be equal to the fourth value. At this time, the reporting method is determined as: reporting after the third interval, and the third duration is indicated by the fifth value.

In this case, if the subscription data report is still not received after the fourth time interval (the subscribing device does not receive the subscription data, or the subscribed device does not report), the subscribing device may automatically cancel the subscription. The fourth time interval is indicated by the sixth value. Optionally, if the subscription data is not received after the fourth time interval, the subscribing device sends a second indication message to the subscribed device, and the second indication message is used to indicate the cancellation of the subscription of the subscribing device to the subscribed device regarding the subscription data.

Optionally, when both parties determine the reporting method based on the subscription request, the subscription response sent by the subscribed device to the subscribing device may not carry the maximum interval field; or, the maximum interval field carried in the subscription response does not limit the reporting method.

(2) The subscribers determine the reporting method based on the subscription request and subscription response.

Optionally, in this manner, the data transmission method provided in the embodiment of the present application further includes:

The subscribing device sends a subscription request to the subscribed device, and the subscription request carries a minimum interval time field and a maximum interval time field;

The subscribed device sends a subscription response to the subscribing device, and the subscription response carries a maximum interval field;

The reporting method of the subscription data is determined according to the minimum interval time field and the maximum interval field.

In some embodiments, if the minimum interval time field is not specified in the subscription request, the default minimum interval time field is the first value (such as 0). That is, MinIntervalFloor = 0. It should be understood that the minimum interval time field can also be specified as the first value in the subscription request. Subsequently, based on the maximum interval field in the subscription response being the second value (such as 0×FFFF), that is, MinIntervalFloor = 0, MaxInterval = 0×FFFF. At this time, the reporting method is determined as: reporting when the status of the attributes and/or events subscribed by the subscribing device changes.

In some other embodiments, the minimum interval time field is the third value, and the maximum interval field is the second value. The third value is a value different from the first value and the second value, and the third value is not equal to the first value, which can be understood as MinIntervalFloor! = 0. Exemplarily, MinIntervalFloor! = 0, MaxInterval = 0×FFFF, and the reporting method is determined as: reporting after the first interval, and the first interval is indicated by the third value.

In this case, the reporting method also includes: in the case where the subscription data is not reported after the first time interval, reporting is performed when the state of the attribute and/or event subscribed by the subscribing device changes. That is, if the subscription data is not reported after the first time interval (the subscribing device does not receive the subscription data, or the subscribed device does not report), the subscribing device can continue to wait, and the reporting of the subscription data by the subscribed device will change from reporting after the first time interval (fixed interval reporting) to reporting when the state of the subscribed attribute and/or event changes (non-fixed interval reporting).

In some other embodiments, the minimum interval time field is the first value, and the maximum interval field is the fourth value. The fourth value is a value different from the first value and the second value, and the fourth value is not equal to the second value, which can be understood as MaxInterval! = 0. Exemplarily, MinIntervalFloor = 0, MaxInterval! = 0×FFFF, and the reporting method is determined as: reporting after the second interval, and the second interval is indicated by the fourth value.

In this case, if the subscription data report is still not received after the second time interval (the subscribing device does not receive the subscription data, or the subscribed device does not report), the subscribing device may automatically cancel the subscription. Optionally, if the subscription data is not received after the second time interval, the subscribing device sends a first indication message to the subscribed device, and the first indication message is used to instruct the subscribing device to cancel the subscription of the subscription data of the subscribed device.

With reference to the foregoing, the methods for reporting subscription data include: reporting when the status of the attributes and/or events subscribed by the subscribing device changes; reporting at intervals of a specified duration.

The following are several ways to report subscription data:

Implementation method 1: Report when the status of the attributes and/or events subscribed by the subscribing device changes.

FIG6 shows a flow chart of a data transmission method provided by an exemplary embodiment of the present application. Step 302 can be implemented as step 3021, which is as follows:

Step 3021: The subscribed device reports subscription data to the subscribing device.

The method of reporting subscription data includes: reporting when the state of the attribute and/or event subscribed by the subscribing device changes.

Optionally, the reporting method is determined according to the first value and the second value;

Among them, the first value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription request; or, the first value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription response corresponding to the subscription request.

In some embodiments, the first value is 0, and the second value is 0×FFFF. Referring to the foregoing content, the first value and the second value may be default values, or may be assigned by the subscribing device or the subscribed device.

For example, when MinIntervalFloor=0, MaxIntervalCeil or MaxInterval=0×FFFF, the reporting mode is determined as: reporting when the state of the attribute and/or event subscribed by the subscribing device changes.

It can be understood that, according to the first value and the second value, the reporting mode of subscription data can be set to report only when the subscribed attributes and/or event status changes, that is, the subscribed device only reports when the subscription data changes.

It should be understood that in the above embodiment, the steps on the subscription device side and the steps on the subscribed device side can be independently implemented as an embodiment of the data transmission method. For specific explanations, please refer to the above content.

In summary, in the data transmission method provided in the embodiment of the present application, according to the first value and the second value, the reporting method of the subscription data can be determined as: reporting when the state of the attribute and/or event subscribed by the subscribing device changes. Based on this, the subscribed device does not need to report data according to a fixed frequency, thereby avoiding invalid reporting of data, reducing the reporting frequency of subscription data, and improving data reporting efficiency.

Implementation method 2: reporting after a first period of time.

FIG. 7 shows a flow chart of a data transmission method provided by an exemplary embodiment of the present application. Step 302 can be implemented as step 3022, which is as follows:

Step 3022: The subscribed device reports subscription data to the subscribing device.

The reporting method of the subscription data includes: reporting after a first time interval, and the first time interval is determined according to the minimum interval time field carried in the subscription request.

Optionally, the reporting method is determined according to a third value and a second value, and the third value is used to indicate the first duration; wherein the third value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription request; or, the third value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription response corresponding to the subscription request.

In some embodiments, the second value is 0×FFFF.

Referring to the foregoing, the second value may be a default value or may be assigned by the subscribing device or the subscribed device. The third value is a value different from the first value and the second value, and the third value is not equal to the first value, which can be understood as MinIntervalFloor! = 0, MaxIntervalCeil or MaxInterval = 0×FFFF. MinIntervalFloor! = 0 can be understood as the value of the minimum interval time field being any value not equal to 0. At this time, the reporting method is determined as: reporting after the first interval, and the first interval is indicated by the third value.

Optionally, the reporting method further includes: in the case where no subscription data is reported after a first period of time, reporting is performed when a state of an attribute and/or event subscribed by the subscribing device changes.

That is, if no report of subscription data is received after the first time period (the subscribing device does not receive the subscription data, or the subscribed device does not report), the subscribing device may continue to wait, and the subscribed device will report the subscription data from after the first time period (fixed interval reporting) to when the status of the subscribed attributes and/or events changes (non-fixed interval reporting).

It should be understood that in the above embodiment, the steps on the subscription device side and the steps on the subscribed device side can be independently implemented as an embodiment of the data transmission method. For specific explanations, please refer to the above content.

To sum up, in the data transmission method provided in the embodiment of the present application, according to the third value and the second value, the reporting method of the subscription data can be determined as: reporting after a first time interval; if the subscription data is not reported after the first time interval, the subscribed device reports the subscription data when the status of the attributes and/or events subscribed by the subscribing device changes.

Based on this, the subscribed device can first report data according to a fixed frequency to ensure the transmission of the subscribed data; then, if the subscribed data is not reported after a certain first period of time, the subscribed device can adjust the reporting method to avoid the subscribing device directly canceling the subscription relationship. This reporting method can avoid repeated requests for the same subscribed data while ensuring the transmission of the subscribed data, thereby indirectly improving the reporting efficiency of the subscribed data.

Implementation method three: reporting after a second period of time.

FIG8 shows a flow chart of a data transmission method provided by an exemplary embodiment of the present application. Step 302 can be implemented as step 3023, which is as follows:

Step 3023: The subscribed device reports subscription data to the subscribing device.

Among them, the reporting method of subscription data includes: reporting after a second time interval, the second time interval is determined according to the maximum interval time field carried in the subscription request, or the second time interval is determined according to the maximum interval field carried in the subscription response corresponding to the subscription request.

Optionally, the reporting method is determined based on the first value and the fourth value, and the fourth value is used to indicate the second duration; wherein the first value is the value of the minimum interval time field, and the fourth value is the value of the maximum interval time field carried in the subscription request; or, the first value is the value of the minimum interval time field, and the fourth value is the value of the maximum interval time field carried in the subscription response corresponding to the subscription request.

In some embodiments, the first value is 0.

With reference to the foregoing, the first value may be a default value or may be assigned by the subscribing device or the subscribed device. Among them, the fourth value is a value different from the first value and the second value, and the fourth value is not equal to the second value, which can be understood as MinIntervalFloor = 0, MaxIntervalCeil or MaxInterval! = 0×FFFF. MaxIntervalCeil or MaxInterval! = 0×FFFF can be understood as that the value of the maximum interval time field or the maximum interval field is any value not equal to 0×FFFF. At this time, the reporting method is determined as: reporting after the second interval, and the second interval is indicated by the fourth value.

In this case, if no subscription data report is received after the second time interval (the subscribing device does not receive the subscription data, or the subscribed device does not report), the subscribing device may automatically cancel the subscription to avoid long waiting.

Optionally, the data transmission method provided in the embodiment of the present application further includes:

Step 3041: When no subscription data is received after a second period of time, the subscribing device sends first indication information to the subscribed device.

Illustratively, the first indication information is used to instruct the subscribing device to cancel the subscription of the subscribed device to the subscription data.

In some embodiments, the first indication information may be implemented through a subscription request sent by a subscription device. For example, when no subscription data is received after a second interval, the subscription device sends a subscription request to the subscribed device, and the keep subscription field carried in the subscription request is false. Based on the definition of the keep subscription field in the related art, the existing subscription from the subscription device may be terminated, thereby canceling the subscription of the subscription device to the subscribed device regarding the subscription data.

In some embodiments, the subscribed device may not receive the first indication information, and the subscribed device still reports the subscription data to the subscribing device. Based on this, the data transmission method provided in the embodiment of the present application also includes:

Step 305: The subscribing device sends a status code to the subscribed device.

Illustratively, the status code is used to indicate that the subscription data is data corresponding to a canceled or inactive subscription relationship.

Among them, a canceled or inactive subscription relationship refers to a subscription relationship that the subscribing device has informed of the need to cancel. In some embodiments, a canceled or inactive subscription relationship can be indicated by a special subscription identifier (such as inactive Subscription ID). Based on the status code, the subscribed device can cancel the subscription relationship corresponding to the subscription data, thereby avoiding reporting the subscription data to the subscribing device again.

Exemplarily, the status code is an INACTIVE_SUBSCRIBE status code.

It should be understood that in the above embodiment, the steps on the subscription device side and the steps on the subscribed device side can be independently implemented as an embodiment of the data transmission method. For specific explanations, please refer to the above content.

To sum up, in the data transmission method provided in the embodiment of the present application, according to the first value and the fourth value, the reporting method of the subscription data can be determined as: reporting after a second time interval; if the subscription data is not received after the second time interval, the subscribing device sends a first indication information for canceling the subscription to the subscribed device.

Based on the second duration indicated by the fourth value, the time interval for reporting subscription data can be extended, which relatively reduces the reporting frequency of subscription data, thereby avoiding invalid reporting of data and improving the reporting efficiency of subscription data.

Implementation method 4: reporting after a third period of time.

FIG. 9 shows a flow chart of a data transmission method provided by an exemplary embodiment of the present application. Step 302 can be implemented as step 3024, which is as follows:

Step 3024: The subscribed device reports subscription data to the subscribing device.

The reporting method of the subscription data includes: reporting after a third time interval, and the third time interval is determined according to the minimum interval time field carried in the subscription request.

Optionally, the reporting method is determined according to the fifth value and the sixth value, and the fifth value is used to indicate the third duration; wherein the fifth value is the value of the minimum interval time field, and the sixth value is the value of the maximum interval time field carried in the subscription request.

It should be understood that the fifth value and the sixth value are both different from the first value and the second value, and the fifth value is not equal to the first value, and the sixth value is not equal to the second value. In addition, the fifth value may be equal to the third value, and the sixth value may be equal to the fourth value.

In some embodiments, the first value is 0 and the second value is 0×FFFF.

Referring to the foregoing content, the first value and the second value may be default or assigned by the subscribing device or the subscribed device. Exemplarily, MinIntervalFloor! = 0, MaxIntervalCeil! = 0×FFFF. Among them, MinIntervalFloor! = 0 can be understood as the value of the minimum interval time field is any value not equal to 0; MaxIntervalCeil! = 0×FFFF can be understood as the value of the maximum interval field is any value not equal to 0×FFFF. At this time, the reporting method is determined as: reporting after the third interval, and the third interval is indicated by the fifth value.

In this case, if the subscription data is still not reported after the fourth time interval (the subscribing device does not receive the subscription data, or the subscribed device does not report), the subscribing device may automatically cancel the subscription. The fourth time interval is indicated by the sixth value.

Optionally, the data transmission method provided in the embodiment of the present application further includes:

Step 3042: When no subscription data is received after a fourth period of time, the subscribing device sends second indication information to the subscribed device.

Illustratively, the second indication information is used to instruct the subscribing device to cancel the subscription of the subscribed device to the subscription data.

In some embodiments, the second indication information may be implemented through a subscription request sent by the subscription device. For example, when the subscription data is not received after the fourth time interval, the subscription device sends a subscription request to the subscribed device, and the keep subscription field carried in the subscription request is false. Based on the definition of the keep subscription field in the related art, the existing subscription from the subscription device may be terminated, thereby canceling the subscription of the subscription device to the subscription data of the subscribed device.

In some embodiments, the subscribed device may not receive the second indication information, and the subscribed device still reports the subscription data to the subscribing device. Based on this, the data transmission method provided in the embodiment of the present application also includes:

Step 305: The subscribing device sends a status code to the subscribed device.

Illustratively, the status code is used to indicate that the subscription data is data corresponding to a canceled or inactive subscription relationship.

Among them, a canceled or inactive subscription relationship refers to a subscription relationship that the subscribing device has informed of the need to cancel. In some embodiments, a canceled or inactive subscription relationship can be indicated by a special subscription identifier (such as inactive Subscription ID). Based on the status code, the subscribed device can cancel the subscription relationship corresponding to the subscription data, thereby avoiding reporting the subscription data to the subscribing device again.

Exemplarily, the status code is an INACTIVE_SUBSCRIBE status code.

It should be understood that in the above embodiment, the steps on the subscription device side and the steps on the subscribed device side can be independently implemented as an embodiment of the data transmission method. For specific explanations, please refer to the above content.

To sum up, in the data transmission method provided in the embodiment of the present application, according to the fifth value and the sixth value, the reporting method of the subscription data can be determined as: reporting after a third time interval; if the subscription data is not received after a fourth time interval, the subscribing device sends a second indication message for canceling the subscription to the subscribed device.

Based on the third duration indicated by the fifth value, the time interval for reporting the subscription data can be expanded, and the reporting frequency of the subscription data can be relatively reduced, thereby avoiding invalid reporting of data to improve the reporting efficiency of the subscription data. In addition, based on the fifth value and the sixth value are both included in the subscription request, the negotiation of the maximum interval time between the subscribing device and the subscribed device is omitted, thereby making the determination of the reporting method of the subscription data more simple and clear.

It should be understood that the aforementioned multiple embodiments provide examples of different ways of reporting subscription data, and the aforementioned multiple embodiments may be implemented individually or in combination, and the present application does not limit this.

Exemplarily, the data transmission method provided in the embodiment of the present application can be implemented as follows:

Among them, after receiving the subscription request sent by the subscribing device, the subscribed device (data publisher) must report data to the subscribing device at a frequency that cannot be lower than MinIntervalFloor (default value 0, unit s) and cannot exceed MaxIntervalCeil or MaxInterval (default value 0xFFFF, unit s).

Based on this, according to MinIntervalFloor and MaxIntervalCeil, or MinIntervalFloor and MaxInterval, there are several optional reporting methods for subscription data:

(1) When MinIntervalFloor = 0, MaxIntervalCeil or MaxInterval = 0×FFFF, it means that the subscribed device is allowed to report data only when the state changes;

(2) When MinIntervalFloor!=0, MaxIntervalCeil or MaxInterval=0×FFFF, it means that the subscribed device reports data according to the frequency set by MinIntervalFloor. If no data is reported within the set MaxIntervalCeil or MinIntervalFloor time, the subscribing device waits for the subscribed device to report data when the data changes;

(3) When MinIntervalFloor = 0, MaxIntervalCeil or MaxInterval! = 0×FFFF, it means that the subscribed device only needs to report data within the MaxInterval time range. If it fails to report within the MaxIntervalCeil or MaxInterval time, the subscriber will automatically cancel the subscription;

(4) When MinIntervalFloor!=0, MaxIntervalCeil!=0×FFFF, it means that the subscribed device reports data at the frequency set by MinIntervalFloor. If no data is reported within the set MinIntervalFloor time, and no data is reported beyond the time defined by MaxIntervalCeil, the subscribing device cancels the subscription.

Optionally, if the subscribing device receives a data report of a canceled or inactive subscription, it sends an INACTIVE_SUBSCRIBE status code to the subscribed device.

The following is an embodiment of the device of the present application. For details not described in detail in the embodiment of the device, reference can be made to the corresponding records in the above method embodiment, and they will not be repeated herein.

FIG10 shows a schematic diagram of a subscription request device provided by an exemplary embodiment of the present application, the device comprising:

A reporting module 1020, used to report subscription data to a subscription device;

There are at least two reporting modes corresponding to the subscription data, and the reporting mode is determined at least according to the minimum interval time field carried in the subscription request sent by the subscription device.

Optionally, the reporting method is determined according to the following information: the minimum interval time field; the maximum interval time field carried in the subscription request.

Optionally, the reporting method is determined according to the following information: the minimum interval time field; and the maximum interval field carried in the subscription response corresponding to the subscription request.

Optionally, the reporting method includes: reporting when the state of the attribute and/or event subscribed by the subscribing device changes.

Optionally, the reporting method is determined according to a first value and a second value; wherein the first value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription request; or, the first value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription response corresponding to the subscription request.

Optionally, the reporting method includes: reporting after a first time interval, and the first time interval is determined according to a minimum interval time field.

Optionally, the reporting method further includes: when no subscription data is reported after a first period of time, when a state of an attribute and/or event subscribed by the subscription device changes, reporting the subscription data to the subscription device.

Optionally, the reporting method is determined according to a third value and a second value, and the third value is used to indicate the first duration; wherein the third value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription request; or, the third value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription response corresponding to the subscription request.

Optionally, the reporting method includes: reporting after a second time interval, the second time interval is determined according to the maximum interval time field carried in the subscription request, or the second time interval is determined according to the maximum interval field carried in the subscription response corresponding to the subscription request.

Optionally, the device also includes: a receiving module 1040, used to receive a first indication message sent by a subscribing device; wherein the first indication message is used to indicate the cancellation of the subscription of the subscribing device to the subscription data of the subscribed device, and the first indication message is sent when no subscription data is received after a second time interval.

Optionally, the reporting method is determined based on the first value and the fourth value, and the fourth value is used to indicate the second duration; wherein the first value is the value of the minimum interval time field, and the fourth value is the value of the maximum interval time field carried in the subscription request; or, the first value is the value of the minimum interval time field, and the fourth value is the value of the maximum interval time field carried in the subscription response corresponding to the subscription request.

Optionally, the reporting method includes: reporting after a third time interval, and the third time interval is determined according to the minimum interval time field.

Optionally, the device also includes: a receiving module 1040, used to receive a second indication message sent by the subscribing device; wherein the second indication message is used to indicate the cancellation of the subscription of the subscribing device to the subscription data of the subscribed device, and the second indication message is sent when no subscription data is received after a fourth time interval, and the fourth time interval is greater than the third time interval.

Optionally, the reporting method is determined according to the fifth value and the sixth value, and the fifth value is used to indicate the third duration; wherein the fifth value is the value of the minimum interval time field, and the sixth value is the value of the maximum interval time field carried in the subscription request.

Optionally, the default value of the minimum interval time field is the first value, and the default value of the maximum interval time field carried in the subscription request is the second value; or, the default value of the minimum interval time field is the first value, and the default value of the maximum interval field carried in the subscription response corresponding to the subscription request is the second value.

Optionally, the apparatus further includes: a receiving module 1040, configured to receive a status code sent by a subscription device; wherein the status code is used to indicate that the subscription data is data corresponding to a canceled or inactive subscription relationship.

FIG11 shows a schematic diagram of a subscription request device provided by an exemplary embodiment of the present application, the device comprising:

The receiving module 1120 is used to receive subscription data reported by the subscribed device;

There are at least two reporting modes corresponding to the subscription data, and the reporting mode is determined at least according to the minimum interval time field carried in the subscription request sent by the subscription device.

Optionally, the reporting method is determined according to the following information: the minimum interval time field; the maximum interval time field carried in the subscription request.

Optionally, the reporting method is determined according to the following information: the minimum interval time field; and the maximum interval field carried in the subscription response corresponding to the subscription request.

Optionally, the reporting method includes: reporting when the state of the attribute and/or event subscribed by the subscribing device changes.

Optionally, the reporting method is determined according to a first value and a second value; wherein the first value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription request; or, the first value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription response corresponding to the subscription request.

Optionally, the reporting method includes: reporting after a first time interval, the first time interval is determined according to the minimum interval time field; or, if no subscription data is reported after the first time interval, reporting is performed when the status of the attributes and/or events subscribed by the subscribing device changes.

Optionally, the reporting method is determined according to a third value and a second value, and the third value is used to indicate the first duration; wherein the third value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription request; or, the third value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription response corresponding to the subscription request.

Optionally, the reporting method includes: reporting after a second time interval, the second time interval is determined according to the maximum interval time field carried in the subscription request, or the second time interval is determined according to the maximum interval field carried in the subscription response corresponding to the subscription request.

Optionally, the apparatus further includes: a sending module 1140, configured to send a first indication message to the subscribed device when no subscription data is received after a second time interval; wherein the first indication message is used to indicate cancellation of the subscription of the subscribing device to the subscription data of the subscribed device.

Optionally, the reporting method is determined based on the first value and the fourth value, and the fourth value is used to indicate the second duration; wherein the first value is the value of the minimum interval time field, and the fourth value is the value of the maximum interval time field carried in the subscription request; or, the first value is the value of the minimum interval time field, and the fourth value is the value of the maximum interval time field carried in the subscription response corresponding to the subscription request.

Optionally, the reporting method includes: reporting after a third time interval, and the third time interval is determined according to the minimum interval time field.

Optionally, the device also includes: a sending module 1140, used to send a second indication message to the subscribing device when no subscription data is received after a fourth time interval; wherein the second indication message is used to indicate the cancellation of the subscription of the subscribing device to the subscription data of the subscribed device, and the fourth time interval is greater than the third time interval.

Optionally, the reporting method is determined according to the fifth value and the sixth value, and the fifth value is used to indicate the third duration; wherein the fifth value is the value of the minimum interval time field, and the sixth value is the value of the maximum interval time field carried in the subscription request.

Optionally, the default value of the minimum interval time field is the first value, and the default value of the maximum interval time field carried in the subscription request is the second value; or, the default value of the minimum interval time field is the first value, and the default value of the maximum interval field carried in the subscription response corresponding to the subscription request is the second value.

Optionally, the apparatus further includes: a sending module 1140, configured to send a status code to the subscribed device; wherein the status code is used to indicate that the subscription data is data corresponding to a canceled or inactive subscription relationship.

FIG12 shows a schematic diagram of the structure of a communication device (subscribing device or subscribed device) provided by an exemplary embodiment of the present application. The communication device includes: a processor 1201 , a receiver 1202 , a transmitter 1203 , a memory 1204 and a bus 1205 .

The processor 1201 includes one or more processing cores. The processor 1201 executes various functional applications and information processing by running software programs and modules.

The receiver 1202 and the transmitter 1203 may be implemented as a communication component, which may be a communication chip.

The memory 1204 is connected to the processor 1201 via a bus 1205 .

The memory 1204 may be used to store at least one instruction, and the processor 1201 may be used to execute the at least one instruction to implement each step of the data transmission method mentioned in the above method embodiment.

In addition, memory 1204 can be implemented by any type of volatile or non-volatile storage device or a combination thereof. Volatile or non-volatile storage devices include but are not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static random access memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, and programmable read-only memory (PROM).

The present application also provides a subscribed device, which includes a memory and a processor; at least one program code is stored in the memory, and the program code is loaded and executed by the processor to implement the aforementioned data transmission method.

The present application also provides a subscription device, which includes a memory and a processor; at least one program code is stored in the memory, and the program code is loaded and executed by the processor to implement the aforementioned data transmission method.

The present application also provides a computer-readable storage medium, in which a computer program is stored. The computer program is used to be executed by a processor to implement the aforementioned data transmission method.

The present application also provides a chip, which includes a programmable logic circuit and/or program instructions, and is used to implement the aforementioned data transmission method when an electronic device equipped with the chip is running.

The present application also provides a computer program product, which includes computer instructions. The computer instructions are stored in a computer-readable storage medium. A processor reads and executes the computer instructions from the computer-readable storage medium to implement the aforementioned data transmission method.

The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims (67)

A data transmission method, characterized in that the method is executed by a subscribed device, and the method comprises: Report subscription data to the subscription device; There are at least two reporting modes corresponding to the subscription data, and the reporting mode is determined at least according to the minimum interval time field carried in the subscription request sent by the subscription device. The method according to claim 1, characterized in that the reporting method is determined according to the following information: The minimum interval time field; The maximum interval time field carried in the subscription request. The method according to claim 1, characterized in that the reporting method is determined according to the following information: The minimum interval time field; The maximum interval field carried in the subscription response corresponding to the subscription request. The method according to any one of claims 1 to 3, characterized in that the reporting method includes: Reporting is performed when the state of the attribute and/or event subscribed by the subscribing device changes. The method according to claim 4, characterized in that The reporting method is determined according to the first value and the second value; Among them, the first value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription request; or, the first value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription response corresponding to the subscription request. The method according to any one of claims 1 to 3, characterized in that the reporting method includes: The reporting is performed after a first time interval, where the first time interval is determined according to the minimum interval time field. The method according to claim 6, characterized in that the reporting method further comprises: In the case that the subscription data is not reported after the first period of time, the subscription data is reported to the subscription device when the state of the attribute and/or event subscribed by the subscription device changes. The method according to claim 6 or 7, characterized in that The reporting mode is determined according to a third value and a second value, and the third value is used to indicate the first duration; Among them, the third value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription request; or, the third value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription response corresponding to the subscription request. The method according to any one of claims 1 to 3, characterized in that the reporting method includes: The reporting is performed after a second time interval, where the second time interval is determined according to a maximum interval time field carried in the subscription request, or the second time interval is determined according to a maximum interval field carried in a subscription response corresponding to the subscription request. The method according to claim 9, characterized in that the method further comprises: Receiving first indication information sent by the subscription device; The first indication information is used to indicate cancellation of the subscription of the subscribing device to the subscribed device regarding the subscription data, and the first indication information is sent when the subscription data is not received after the second time interval. The method according to claim 9 or 10, characterized in that The reporting mode is determined according to the first value and the fourth value, and the fourth value is used to indicate the second duration; Among them, the first value is the value of the minimum interval time field, and the fourth value is the value of the maximum interval time field carried in the subscription request; or, the first value is the value of the minimum interval time field, and the fourth value is the value of the maximum interval time field carried in the subscription response corresponding to the subscription request. The method according to any one of claims 1 to 3, characterized in that the reporting method includes: The report is performed after a third time interval, where the third time interval is determined according to the minimum interval time field. The method according to claim 12, characterized in that the method further comprises: Receiving second indication information sent by the subscription device; The second indication information is used to indicate cancellation of the subscription of the subscribing device to the subscribed device regarding the subscription data, and the second indication information is sent when the subscription data is not received after a fourth time period, and the fourth time period is greater than the third time period. The method according to claim 12, characterized in that The reporting mode is determined according to a fifth value and a sixth value, wherein the fifth value is used to indicate the third duration; The fifth value is the value of the minimum interval time field, and the sixth value is the value of the maximum interval time field carried in the subscription request. The method according to any one of claims 1 to 14, characterized in that The default value of the minimum interval time field is the first value, and the default value of the maximum interval time field carried in the subscription request is the second value; Alternatively, the default value of the minimum interval time field is the first value, and the default value of the maximum interval field carried in the subscription response corresponding to the subscription request is the second value. The method according to any one of claims 1 to 15, characterized in that the method further comprises: Receiving a status code sent by the subscription device; The status code is used to indicate that the subscription data is data corresponding to a canceled or inactive subscription relationship. A data transmission method, characterized in that the method is executed by a subscription device, and the method comprises: Receive subscription data reported by the subscribed device; There are at least two reporting modes corresponding to the subscription data, and the reporting mode is determined at least according to the minimum interval time field carried in the subscription request sent by the subscription device. The method according to claim 17, characterized in that the reporting method is determined according to the following information: The minimum interval time field; The maximum interval time field carried in the subscription request. The method according to claim 17, characterized in that the reporting method is determined according to the following information: The minimum interval time field; The maximum interval field carried in the subscription response corresponding to the subscription request. The method according to any one of claims 17 to 19, characterized in that the reporting method comprises: Reporting is performed when the status of the attribute and/or event subscribed by the subscribing device changes. The method according to claim 20, characterized in that The reporting method is determined according to the first value and the second value; Among them, the first value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription request; or, the first value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription response corresponding to the subscription request. The method according to any one of claims 17 to 19, characterized in that the reporting method comprises: Reporting after a first time interval, where the first time interval is determined according to the minimum interval time field; Alternatively, in the case where the subscription data is not reported after the first time period, reporting is performed when the state of the attribute and/or event subscribed by the subscribing device changes. The method according to claim 22, characterized in that The reporting mode is determined according to a third value and a second value, and the third value is used to indicate the first duration; Among them, the third value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription request; or, the third value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription response corresponding to the subscription request. The method according to any one of claims 17 to 19, characterized in that the reporting method comprises: The reporting is performed after a second time interval, where the second time interval is determined according to a maximum interval time field carried in the subscription request, or the second time interval is determined according to a maximum interval field carried in a subscription response corresponding to the subscription request. The method according to claim 24, characterized in that the method further comprises: If the subscription data is not received after the second time interval, sending first indication information to the subscribed device; The first indication information is used to instruct to cancel the subscription of the subscribing device to the subscribed device regarding the subscription data. The method according to claim 24 or 25, characterized in that The reporting mode is determined according to the first value and the fourth value, and the fourth value is used to indicate the second duration; Among them, the first value is the value of the minimum interval time field, and the fourth value is the value of the maximum interval time field carried in the subscription request; or, the first value is the value of the minimum interval time field, and the fourth value is the value of the maximum interval time field carried in the subscription response corresponding to the subscription request. The method according to any one of claims 17 to 19, characterized in that the reporting method comprises: The report is performed after a third time interval, where the third time interval is determined according to the minimum interval time field. The method according to claim 27, characterized in that the method further comprises: If the subscription data is not received after the fourth time interval, sending second indication information to the subscription device; The second indication information is used to indicate cancellation of the subscription of the subscribing device to the subscribed device regarding the subscription data, and the fourth time period is greater than the third time period. The method according to claim 27, characterized in that The reporting mode is determined according to a fifth value and a sixth value, wherein the fifth value is used to indicate the third duration; The fifth value is the value of the minimum interval time field, and the sixth value is the value of the maximum interval time field carried in the subscription request. The method according to any one of claims 17 to 29, characterized in that The default value of the minimum interval time field is the first value, and the default value of the maximum interval time field carried in the subscription request is the second value; Alternatively, the default value of the minimum interval time field is the first value, and the default value of the maximum interval field carried in the subscription response corresponding to the subscription request is the second value. The method according to any one of claims 17 to 30, characterized in that the method further comprises: Send a status code to the subscribed device; The status code is used to indicate that the subscription data is data corresponding to a canceled or inactive subscription relationship. A data transmission device, characterized in that the device comprises: Reporting module, used to report subscription data to the subscription device; There are at least two reporting modes corresponding to the subscription data, and the reporting mode is determined at least according to the minimum interval time field carried in the subscription request sent by the subscription device. The device according to claim 32, characterized in that the reporting method is determined according to the following information: The minimum interval time field; The maximum interval time field carried in the subscription request. The device according to claim 32, characterized in that the reporting method is determined according to the following information: The minimum interval time field; The maximum interval field carried in the subscription response corresponding to the subscription request. The device according to any one of claims 32 to 34, characterized in that the reporting method includes: Reporting is performed when the state of the attribute and/or event subscribed by the subscribing device changes. The device according to claim 35, characterized in that The reporting method is determined according to the first value and the second value; Among them, the first value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription request; or, the first value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription response corresponding to the subscription request. The device according to any one of claims 32 to 34, characterized in that the reporting method includes: The reporting is performed after a first time interval, where the first time interval is determined according to the minimum interval time field. The device according to claim 37, characterized in that the reporting method further comprises: In the case that the subscription data is not reported after the first period of time, the subscription data is reported to the subscription device when the state of the attribute and/or event subscribed by the subscription device changes. The device according to claim 37 or 38, characterized in that The reporting mode is determined according to a third value and a second value, and the third value is used to indicate the first duration; Among them, the third value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription request; or, the third value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription response corresponding to the subscription request. The device according to any one of claims 32 to 34, characterized in that the reporting method includes: The reporting is performed after a second time interval, where the second time interval is determined according to a maximum interval time field carried in the subscription request, or the second time interval is determined according to a maximum interval field carried in a subscription response corresponding to the subscription request. The device according to claim 40, characterized in that the device further comprises: A receiving module, configured to receive first indication information sent by the subscription device; The first indication information is used to indicate cancellation of the subscription of the subscribing device to the subscribed device regarding the subscription data, and the first indication information is sent when the subscription data is not received after the second time interval. The device according to claim 40 or 41, characterized in that The reporting mode is determined according to the first value and the fourth value, and the fourth value is used to indicate the second duration; Among them, the first value is the value of the minimum interval time field, and the fourth value is the value of the maximum interval time field carried in the subscription request; or, the first value is the value of the minimum interval time field, and the fourth value is the value of the maximum interval time field carried in the subscription response corresponding to the subscription request. The device according to any one of claims 32 to 34, characterized in that the reporting method includes: The report is performed after a third time interval, where the third time interval is determined according to the minimum interval time field. The device according to claim 43, characterized in that the device further comprises: A receiving module, configured to receive second indication information sent by the subscription device; The second indication information is used to indicate cancellation of the subscription of the subscribing device to the subscribed device regarding the subscription data, and the second indication information is sent when the subscription data is not received after a fourth time period, and the fourth time period is greater than the third time period. The device according to claim 43, characterized in that The reporting mode is determined according to a fifth value and a sixth value, wherein the fifth value is used to indicate the third duration; The fifth value is the value of the minimum interval time field, and the sixth value is the value of the maximum interval time field carried in the subscription request. The device according to any one of claims 32 to 45, characterized in that The default value of the minimum interval time field is the first value, and the default value of the maximum interval time field carried in the subscription request is the second value; Alternatively, the default value of the minimum interval time field is the first value, and the default value of the maximum interval field carried in the subscription response corresponding to the subscription request is the second value. The device according to any one of claims 32 to 46, characterized in that the device further comprises: A receiving module, used for receiving a status code sent by the subscription device; The status code is used to indicate that the subscription data is data corresponding to a canceled or inactive subscription relationship. A data transmission device, characterized in that the device is executed by a subscription device, and the device comprises: A receiving module, used to receive subscription data reported by the subscribed device; There are at least two reporting modes corresponding to the subscription data, and the reporting mode is determined at least according to the minimum interval time field carried in the subscription request sent by the subscription device. The device according to claim 48, characterized in that the reporting method is determined according to the following information: The minimum interval time field; The maximum interval time field carried in the subscription request. The device according to claim 48, characterized in that the reporting method is determined according to the following information: The minimum interval time field; The maximum interval field carried in the subscription response corresponding to the subscription request. The device according to any one of claims 48 to 50, characterized in that the reporting method includes: Reporting is performed when the state of the attribute and/or event subscribed by the subscribing device changes. The device according to claim 51, characterized in that The reporting method is determined according to the first value and the second value; Among them, the first value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription request; or, the first value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription response corresponding to the subscription request. The device according to any one of claims 48 to 50, characterized in that the reporting method includes: Reporting after a first time interval, where the first time interval is determined according to the minimum interval time field; Alternatively, in the case where the subscription data is not reported after the first time period, reporting is performed when the state of the attribute and/or event subscribed by the subscription device changes. The device according to claim 53, characterized in that The reporting mode is determined according to a third value and a second value, and the third value is used to indicate the first duration; Among them, the third value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription request; or, the third value is the value of the minimum interval time field, and the second value is the value of the maximum interval time field carried in the subscription response corresponding to the subscription request. The device according to any one of claims 48 to 50, characterized in that the reporting method includes: The reporting is performed after a second time interval, where the second time interval is determined according to a maximum interval time field carried in the subscription request, or the second time interval is determined according to a maximum interval field carried in a subscription response corresponding to the subscription request. The device according to claim 55, characterized in that the device further comprises: A sending module, configured to send first indication information to the subscribed device if the subscription data is not received after the second time interval; The first indication information is used to instruct to cancel the subscription of the subscribing device to the subscribed device regarding the subscription data. The device according to claim 55 or 56, characterized in that The reporting mode is determined according to the first value and the fourth value, and the fourth value is used to indicate the second duration; Among them, the first value is the value of the minimum interval time field, and the fourth value is the value of the maximum interval time field carried in the subscription request; or, the first value is the value of the minimum interval time field, and the fourth value is the value of the maximum interval time field carried in the subscription response corresponding to the subscription request. The device according to any one of claims 48 to 50, characterized in that the reporting method includes: The report is performed after a third time interval, where the third time interval is determined according to the minimum interval time field. The device according to claim 58, characterized in that the device further comprises: A sending module, configured to send second indication information to the subscription device if the subscription data is not received after the fourth time interval; The second indication information is used to indicate cancellation of the subscription of the subscribing device to the subscribed device regarding the subscription data, and the fourth time period is greater than the third time period. The device according to claim 58, characterized in that The reporting mode is determined according to a fifth value and a sixth value, wherein the fifth value is used to indicate the third duration; The fifth value is the value of the minimum interval time field, and the sixth value is the value of the maximum interval time field carried in the subscription request. The device according to any one of claims 48 to 60, characterized in that The default value of the minimum interval time field is the first value, and the default value of the maximum interval time field carried in the subscription request is the second value; Alternatively, the default value of the minimum interval time field is the first value, and the default value of the maximum interval field carried in the subscription response corresponding to the subscription request is the second value. The device according to any one of claims 48 to 61, characterized in that the device further comprises: A sending module, used to send a status code to a subscribed device; The status code is used to indicate that the subscription data is data corresponding to a canceled or inactive subscription relationship. A subscribed device, characterized in that the subscribed device includes a memory and a processor; At least one program code is stored in the memory, and the program code is loaded and executed by the processor to implement the data transmission method according to any one of claims 1 to 16. A subscription device, characterized in that the subscription device comprises a memory and a processor; At least one program code is stored in the memory, and the program code is loaded and executed by the processor to implement the data transmission method according to any one of claims 17 to 31. A computer-readable storage medium, characterized in that a computer program is stored in the storage medium, and the computer program is used to be executed by a processor to implement the data transmission method described in any one of claims 1 to 31. A chip, characterized in that the chip includes a programmable logic circuit and/or program instructions, and when an electronic device equipped with the chip is running, it is used to implement the data transmission method described in any one of claims 1 to 31. A computer program product, characterized in that the computer program product includes computer instructions, the computer instructions are stored in a computer-readable storage medium, and a processor reads and executes the computer instructions from the computer-readable storage medium to implement the data transmission method described in any one of claims 1 to 31.

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