WO2019184455A1

WO2019184455A1 - Information transmission method and apparatus, device and storage medium

Info

Publication number: WO2019184455A1
Application number: PCT/CN2018/120721
Authority: WO
Inventors: 萧维廷; 文振兴
Original assignee: 青岛海信电器股份有限公司
Priority date: 2018-03-29
Filing date: 2018-12-12
Publication date: 2019-10-03
Also published as: CN108551668A; CN108551668B

Abstract

An information transmission method and apparatus, a device, and a storage medium. The method comprises: prior to entering a sleep state, a first node device sending a friendship request frame to a second node device, the friendship request frame including a minimum wakeup interval and a maximum wakeup interval after the first node device enters a sleep state (101); the first node device receiving a friendship grant frame returned by the second node device, and establishing a friendship relationship with the second node device, so that after the first node device enters the sleep state, the second node device buffers information concerning a target arriving at the first node device, the friendship grant frame comprising a target wakeup interval, the target wakeup interval being equal to or greater than the minimum wakeup interval and less than or equal to the maximum wakeup interval (102); the first node device, after entering the sleep state, being awakened once at the target wakeup interval, and performing information interaction with the second node device (103). The method can improve the timeliness of information transmission in Bluetooth networking.

Description

Information transmission method, device, device and storage medium

Technical field

The embodiments of the present invention relate to the field of communications technologies, and in particular, to an information transmission method, apparatus, device, and storage medium.

Background technique

In the latest standardized protocol of Bluetooth networking, a multi-point to multi-point network topology and a broadcast-based information transmission method are defined, which breaks through the traditional Bluetooth master-slave architecture and cannot achieve multi-point to multi-point information transmission. Restrictions make it easy to build a wide range of network interconnect architectures that are well suited to the needs of IoT applications.

Summary of the invention

The embodiment of the present invention provides an information transmission method, device, device, and storage medium, which are used to improve the timeliness of information transmission in a Bluetooth networking.

An embodiment of the present application provides an information transmission method, including:

The first node device sends a friend request frame to the second node device before entering the sleep state, where the friend request frame includes a minimum wake interval and a maximum wake interval after the first node device enters a sleep state;

Receiving, by the first node device, a friend grant frame returned by the second node device, and establishing a friendship relationship with the second node device, so that after the first node device enters the sleep state, the first node The information of the two-node device cache target reaching the first node device, where the friend grant frame includes a target wake-up interval, where the target wake-up interval is greater than or equal to the minimum wake-up interval, less than or equal to the maximum wake-up interval;

After entering the sleep state, the first node device wakes up once at the target wake-up interval, and performs information interaction with the second node device.

In some implementations, the friend request frame further includes a first cache timeout period, where the first cache timeout time is requested by the first node device to the second node device, and the information that the target reaches the first node is The maximum storage time in the second node.

In some embodiments, the friend grant frame further includes a second cache timeout period, when the information of the target reaching the first node device is stored in the second node device for more than the second cache timeout period. The second node device deletes the information.

In some embodiments, the second cache timeout is an integer multiple of the target wakeup interval.

In some embodiments, the method further includes:

The first node device sends a sleep notification frame to the second node device when the user enters the sleep state, so that the second node device starts to cache the information of the target reaching the first node device after receiving the sleep notification frame. And transmitting the cached information to the first node device by the target wake-up interval.

In some embodiments, after the first node device enters the sleep state, it wakes up once the target wake-up interval, and performs information interaction with the second node device, including:

When the target wake-up interval arrives, the first node device wakes up, and receives a cache information notification frame sent by the second node device when the target wake-up interval arrives, where the cache information notification frame includes the first node. The unicast address of the device and the identifier indicating whether or not there is cache information;

And if the cache information notification frame includes an identifier corresponding to the cached information, the first node device receives the cache information.

An embodiment of the present application provides an electronic device including a Bluetooth component, a memory, and a processor, wherein the memory stores computer instructions, and the processor is configured to execute the computer instruction to cause the electronic device to perform the above The method of the first aspect.

An embodiment of the present application provides a computer readable non-volatile storage medium comprising instructions that, when executed on the computer, implement the method of the first aspect described above.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application, Those skilled in the art can also obtain other drawings based on these drawings without paying for creative labor.

1 is a flowchart of an information transmission method provided by an embodiment of the present application;

2 is a schematic structural diagram of a sleep notification frame provided by an embodiment of the present application;

3 is a schematic structural diagram of a cache information notification frame according to an embodiment of the present application;

4 is a flowchart of an information transmission method according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a friend request frame according to an embodiment of the present application; FIG.

FIG. 5b is a schematic structural diagram of a friend grant frame according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of an information transmission apparatus according to an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the drawings in the embodiments of the present application. It is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

The terms "comprises" and "comprising" and variations of the claims and the claims of the application are intended to cover a non-exclusive inclusion, for example, a device that comprises a process or structure of a series of steps is not necessarily limited to Those structures or steps may include other steps or structures not explicitly listed or inherent to such processes or devices.

In the standard of the Bluetooth networking, two special function nodes are defined: a low power node and a Friend node. In order to achieve power saving function, the low power node turns off the antenna receiving function. Before entering sleep, a suitable friend node will be searched for by a specific process. When the two parties establish a friendship relationship, the friend node will help cache all the Bluetooth networks within the time period when the low-power node enters the sleep state. The destination is the information of the low-power node. When the low-power node returns to the normal working state, the low-power node will request all the information of the help cache to the friend node, thereby achieving the requirement of sleep power saving and ensuring The correctness of information transmission.

However, in such an architecture design, the wake-up time of the low-power node is uncontrollable, and when the information cached by the friend node can be transmitted to the low-power node cannot be determined, and the timeliness of the network control information cannot be ensured.

The embodiment of the present application provides an information transmission method, which can be applied to a Bluetooth networking. The method can be performed by an information transmission device. Referring to FIG. 1, FIG. 1 is a flowchart of an information transmission method according to an embodiment of the present application. As shown in FIG. 1, the method includes the following steps:

Step 101: The first node device sends a friend request frame to the second node device before entering the sleep state, where the friend request frame includes a minimum wake interval and a maximum wake interval after the first node device enters a sleep state.

The Bluetooth network in this embodiment refers to a wireless mesh network that uses a Bluetooth device as a network node. The Bluetooth network is used as an example. The first node device and the second node device in this embodiment may be specifically included. Bluetooth device in the Bluetooth network. Specifically, the first node device may be specifically a Bluetooth low energy device in the Bluetooth networking, and the second node device may be specifically a Bluetooth device serving as a friend node in the Bluetooth networking. In this embodiment, the second node device may specifically refer to a Bluetooth device as a friend node, and may also refer to multiple Bluetooth devices as friend nodes, that is, the first node device described in this embodiment enters a sleep state. The sending of the friend request frame to the second node device includes: the first node device transmitting the friend request frame to one or more friend nodes.

The friend request frame involved in the embodiment adds two fields on the basis of the friend request frame of the existing Bluetooth network, and the two fields respectively fill in the support of the first node device after entering the sleep state. Minimum wakeup interval and maximum wakeup interval. For example, the minimum wake-up interval is 50 minutes and the maximum wake-up interval is 100 minutes, indicating that the first node device can wake up once in the interval of 50-100 minutes. When the second node device receives the friend request frame sent by the first node device, determining a time between the minimum wake interval and the maximum wake interval as the target wake interval according to the self cache capability, and carrying the target wake interval at the friend The grant frame is sent to the first node device. Of course, the target wake-up interval may also be equal to the minimum wake-up interval or the maximum wake-up interval as long as the minimum wake-up interval to the maximum wake-up interval is not exceeded. For example, the second node device may comprehensively determine the value of the target wake-up interval by considering the minimum wake-up interval, the maximum wake-up interval, the current remaining cache space, and the number of low-power Bluetooth devices with which a friendship relationship has been established. Of course, the method for determining the target wake-up interval for the second node device is not limited in this embodiment.

Step 102: The first node device receives a friend grant frame returned by the second node device, and establishes a friendship relationship with the second node device, so that after the first node device enters the sleep state, The second node device caches information that the target reaches the first node device, where the friend grant frame includes a target wake-up interval, where the target wake-up interval is greater than or equal to the minimum wake-up interval, less than or equal to the maximum Wake up interval.

Since the second node device in the embodiment may include one or more Bluetooth devices as friend nodes, when the second node device includes only one Bluetooth device as a friend node, the first node device receives the second node device. After the friend grants the frame, the friend establishes a friendship relationship with the second node device according to the friend grant frame, and after entering the sleep state, periodically wakes up from the sleep state according to the target wake-up interval carried in the friend grant frame, for example, when the target When the wake-up interval is 70 minutes, the first node device wakes up every 70 minutes. When a second node device includes a plurality of Bluetooth devices as friend nodes, and the first node device receives a friend grant frame returned from a plurality of friend nodes in the second node device, selecting a friend node from the plurality of friend nodes To establish a friendship relationship, for example, you can choose to establish a friendship relationship with the friend node corresponding to the friend frame that was first received, which is of course only an example rather than a unique one. For example, in practice, a friend node including the target wake-up interval may be selected to establish a friendship relationship with the friend node corresponding to the frame.

Further, in this embodiment, the second node device enters the information that the first node device enters the sleep start buffer destination to reach the first node device, and sends the information to the first node device each time the first node device wakes up.

In some embodiments, in order to enable the second node device to accurately know when the first node device enters the sleep state, and to prevent the second node device from missing the information that needs to be cached, the processing manner of this embodiment includes at least one of the following:

In a first embodiment, the first node device adds information of when it enters a sleep state in the friend request frame when transmitting the friend request frame to the second node device.

In another embodiment, when the first node device enters a sleep state, a sleep notification frame is sent to the second node device to notify the second node device that it enters a sleep state. For example, FIG. 2 is a schematic structural diagram of a sleep notification frame provided by an embodiment of the present application. The sleep notification frame includes a unicast address field and a sleep status field. When the first node device enters a sleep state, Add a unicast address in the unicast address field, and add a value indicating that the sleep state is entered in the sleep status field. After receiving the sleep notification frame, the second node device starts to cache the target to reach the first node device. The information, and the interval target wake-up interval, sends the cached information to the first node device.

Of course, the above two implementation manners are only two feasible manners exemplified for clear description, and the actual scenario may include not only the above two feasible manners.

Step 103: After entering the sleep state, the first node device wakes up once at the target wake-up interval, and performs information interaction with the second node device.

In some embodiments, the manner of information interaction with the second node device each time the first node device wakes up includes the following:

In an implementation manner, when the target wake-up interval arrives, the cache information notification frame is sent to the first node device, and the unicast address of the first node device is used in the cache information notification frame, and is used to indicate whether there is a cache. The identification of the information. To inform the first node device whether there is cache information. If so, the first node device receives the cache information sent to him by the second node, and if not, re-enters the sleep state. For example, the format of the cache information notification frame may be specifically in the form shown in FIG. 3. In the field of the cache status in FIG. 3, an identifier for indicating whether or not there is cache information is filled in. Of course, Figure 3 is merely illustrative and not a unique limitation of the cache information notification frame.

In another implementation manner, the first node device sends a notification message to the second node device to notify the second node device that it has awake from the awake state, and further, the second node device performs the first A similar process is implemented.

The embodiment is applicable to the Bluetooth networking. Before the first node device in the Bluetooth networking enters the sleep state, the second node device is requested to establish a friendship relationship by sending a friend request frame to the second node device, and is in the friend request frame. The minimum awake interval and the maximum awake interval supported by the first node device after entering the sleep state, when the first node device receives the friend grant frame returned by the second node device, the first node device establishes a relationship with the second node device. a friendship relationship, so that when the first node device enters a sleep state, the second node device caches information that the target in the Bluetooth network reaches the first node device, and after the first node device enters the sleep state, according to the second node device The returned friend grants the target wake-up interval carried in the frame, periodically wakes up from the sleep state, and performs information interaction with the second node device each time it wakes up. Since the first node device carries the minimum wakeup interval and the maximum wakeup interval supported by the first node device after sending the friend request frame to the second node device, the second node device can according to the minimum wakeup interval, the maximum wakeup interval, and The capability of the first node to determine the target wake-up interval from the minimum wake-up interval to the maximum wake-up interval, so that the target node wake-up interval is carried in the friend grant frame and sent to the first node device, so that the first node device can According to the target wake-up interval, the user wakes up from the sleep state periodically, and performs information interaction with the second node device, so that the information cached in the second node device can be sent to the first node device in time, thereby improving the Bluetooth networking. Timeliness of information transmission.

FIG. 4 is a flowchart of an information transmission method according to an embodiment of the present application. As shown in FIG. 4, on the basis of the embodiment of FIG. 1, the method includes the following steps:

Step 401: The first node device sends a friend request frame to the second node device before entering the sleep state, where the friend request frame includes a minimum wake interval, a maximum wake interval, and a first time after the first node device enters a sleep state. a cache timeout period, wherein the first cache timeout period is a maximum storage time of information of the target reaching the first node in the second node that is requested by the first node device to the second node device.

Step 402: The first node device receives a friend grant frame returned by the second node device, and establishes a friendship relationship with the second node device, where the friend grant frame includes a target wakeup interval and a second cache timeout. Time, when the information that the target reaches the first node device is stored in the second node device exceeds the second cache timeout period, the second node device deletes the information.

Step 403: After entering the sleep state, the first node device wakes up once at the target wake-up interval, and performs information interaction with the second node device.

For example, FIG. 5a is a schematic structural diagram of a friend request frame provided by an embodiment of the present application, and FIG. 5b is a schematic structural diagram of a friend grant frame provided by an embodiment of the present application, as shown in FIG. 5a and FIG. 5b. In the example, when the first node device sends the friend request frame to the second node device, the friend request frame includes a minimum wakeup interval, a maximum wakeup interval, and a first cache timeout period, and the second node device is based on the first When the friend request frame of the node device sends the friend grant frame to the first node device, the field of the evaluation grant frame includes the target wake-up interval and the second cache timeout period, so that the first node device periodically wakes up according to the target wake-up interval, and Notifying the first node device that when the information of the target reaching the first node device is stored in the second node device exceeds the second cache timeout period, the second node device deletes the information. Wherein, the friend request frame shown in FIG. 5a and the friend grant frame shown in FIG. 5b further include other fields (not shown in FIG. 5a and FIG. 5b), and the content and structure corresponding to the fields are The content and structure of the data column commonly used in the art are the same, and will not be described in this embodiment for the sake of simplicity.

In this embodiment, the first cache timeout period and the second cache timeout time may be the same or different. The second cache timeout period is implemented by the second node device according to its own cache capability (the second node device determines its own cache capability and FIG. 1). For example, it is determined that, in some embodiments, when the cache capability of the second node device itself exceeds the first cache timeout period, the second cache timeout period may be set equal to the first cache timeout period. Of course, the setting of the second buffer timeout period can also be set according to specific needs, which is not limited in this embodiment. In this embodiment, the second cache timeout period is specifically configured as an integer multiple of the target wakeup interval.

In addition, for the first node device, generally, the first cache timeout time requested by the first node device is an optimal selection, and if the second node device can meet the requirement of the first cache time, the data can be guaranteed to the maximum extent. If the second node device is not satisfied, the second node device can only be used to select the other time. Therefore, in this embodiment, the first cache timeout period is carried in the friend request frame, thereby ensuring that the data is not lost. .

In the actual scenario, when the first node device cannot receive the cache information notification frame sent by the second node device due to an abnormal power failure such as a sudden power failure or a sleep wakeup process abnormality, the second node device timeouts the cache information in the second cache. The time period is saved. If the first node device recovers from the abnormal cause during the second cache timeout period, the cache information is sent to the first node device, and the cache information is deleted, if the second cache timeout period is reached. Upon arrival, the cache information is still not transmitted to the first node device, and the cache information is deleted.

The embodiment of the present application negotiates the timeout period of the cache information, so that the target arrives at the first node even if the first node device cannot receive the cache information notification frame sent by the second node device due to abnormal conditions such as sudden power failure, abnormal wake-up process, and the like. The information of the device can also be cached in the second node device within the negotiated second cache timeout period. Only when the second cache timeout period arrives, and the first node device still fails to recover from the abnormal cause, The cache information is deleted in the two-node device, thereby improving the reliability of information transmission in the Bluetooth networking.

FIG. 6 is a schematic structural diagram of an information transmission apparatus according to an embodiment of the present application. As shown in FIG. 6, the apparatus includes:

The first sending module 11 is configured to send a friend request frame to the second node device before the first node device enters a sleep state, where the friend request frame includes a minimum wake-up interval after the first node device enters a sleep state, and Maximum wake-up interval;

The first receiving module 12 is configured to receive a friend grant frame returned by the second node device;

The establishing module 13 is configured to establish a friendship relationship between the first node device and the second node device, so that after the first node device enters the sleep state, the second node device caches a target arrival The information of the first node device, where the friend grant frame includes a target wake-up interval, where the target wake-up interval is greater than or equal to the minimum wake-up interval, less than or equal to the maximum wake-up interval;

The waking module 14 is configured to wake up the first node device by the target wake-up interval after the first node device enters the sleep state, so that the first node device and the second node device Perform information interaction.

In some embodiments, the device further comprises:

a second sending module, configured to send a sleep notification frame to the second node device when the first node device enters a sleep state, so that the second node device starts to cache the target arrival after receiving the sleep notification frame And the information of the first node device is sent to the first node device by the target wake-up interval.

In some embodiments, the device further comprises:

a second receiving module, configured to: when the target wake-up interval arrives, when the first node device wakes up, receive a cache information notification frame sent by the second node device when the target wake-up interval arrives, the cache information The notification frame includes a unicast address of the first node device, and an identifier indicating whether or not there is cache information;

The third receiving module is configured to receive the cache information when the identifier corresponding to the cached information is included in the cache information notification frame.

The information transmission apparatus provided in this embodiment can be used to perform the method of the embodiment of FIG. 1 , and the execution manner and the beneficial effects are similar, and details are not described herein again.

The embodiment of the present application further provides an information transmission device, where the friend request frame further includes a first cache timeout period, where the first cache timeout period is the first node device direction. The maximum storage time of the information of the target reaching the first node in the second node requested by the second node device.

The information transmission apparatus provided in this embodiment can be used to perform the method in the embodiment of FIG. 4, and the execution manner and the beneficial effects are similar, and details are not described herein again.

An embodiment of the present application further provides an electronic device, including: a processor;

Bluetooth component for establishing a Bluetooth network with other Bluetooth devices;

a memory, stored with a computer command;

The processor is configured to execute the computer instructions to cause the electronic device to perform the technical solution of the foregoing method embodiments.

The embodiment of the present application further provides a computer readable non-volatile storage medium, including instructions, when the instruction is run on the computer, the computer can implement the technical solution of the foregoing method embodiment.

Finally, it should be understood that those skilled in the art can understand that all or part of the processes in the above embodiment methods can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. The program, when executed, may include the flow of an embodiment of the methods as described above. The storage medium may be a magnetic disk, an optical disk, a read only memory (ROM), or a random access memory (RAM).

Each functional unit in the embodiment of the present application may be integrated into one processing module, or may be physically existed separately for each unit, or two or more units may be integrated into one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. The integrated modules, if implemented in the form of software functional modules and sold or used as separate products, may also be stored in a computer readable storage medium. The storage medium mentioned above may be a read only memory, a magnetic disk or an optical disk or the like.

The above embodiments are only used to explain the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that they can still implement the foregoing embodiments. The technical solutions described in the examples are modified, or some or all of the technical features are equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present application.

Claims

An information transmission method, comprising:

The first node device sends a friend request frame to the second node device before entering the sleep state, where the friend request frame includes a minimum wake interval and a maximum wake interval after the first node device enters a sleep state;

Receiving, by the first node device, a friend grant frame returned by the second node device, and establishing a friendship relationship with the second node device, so that after the first node device enters the sleep state, the first node The information of the two-node device cache target reaching the first node device, where the friend grant frame includes a target wake-up interval, where the target wake-up interval is greater than or equal to the minimum wake-up interval, less than or equal to the maximum wake-up interval;

After entering the sleep state, the first node device wakes up once at the target wake-up interval, and performs information interaction with the second node device.
The method according to claim 1, wherein the friend request frame further includes a first cache timeout period, where the first cache timeout time is requested by the first node device to the second node device. The maximum storage time of the information of the first node in the second node.
The method according to claim 1, wherein the friend grant frame further includes a second cache timeout period, when the information of the target reaching the first node device is stored in the second node device for more than The second node device deletes the information when the second cache timeout period.
The method of claim 3 wherein said second cache timeout is an integer multiple of said target wakeup interval.
The method according to any one of claims 1 to 4, wherein the method further comprises:

The first node device sends a sleep notification frame to the second node device when the user enters the sleep state, so that the second node device starts to cache the information of the target reaching the first node device after receiving the sleep notification frame. And transmitting the cached information to the first node device by the target wake-up interval.
The method according to claim 5, wherein the first node device wakes up once the target wake-up interval after entering the sleep state, and performs information interaction with the second node device, including:

When the target wake-up interval arrives, the first node device wakes up, and receives a cache information notification frame sent by the second node device when the target wake-up interval arrives, where the cache information notification frame includes the first node. The unicast address of the device and the identifier indicating whether or not there is cache information;

And if the cache information notification frame includes an identifier corresponding to the cached information, the first node device receives the cache information.
An electronic device includes a Bluetooth component, a memory, and a processor, wherein

The memory stores computer instructions,

The processor, configured to execute the computer instructions to cause the electronic device to perform the method of any of the preceding claims 1-6.
A computer readable non-volatile storage medium comprising instructions which, when executed on the computer, can implement the method of any of the preceding claims 1-6.