WO2019137310A1

WO2019137310A1 - Wireless fidelity aware group broadcasting method, core device, and member device

Info

Publication number: WO2019137310A1
Application number: PCT/CN2019/070452
Authority: WO
Inventors: 郝志坚; 曹广
Original assignee: 中兴通讯股份有限公司
Priority date: 2018-01-10
Filing date: 2019-01-04
Publication date: 2019-07-18
Also published as: CN110022532A

Abstract

Disclosed are a wireless fidelity aware (WiFi Aware) group broadcasting method, a WiFi Aware core device, and a WiFi Aware member device. The method comprises: receiving and parsing first broadcast information sent by the member device, the first broadcast information carrying a device identifier of the member device; allocating a broadcast sequence number to the member device according to the device identifier, and obtaining group period broadcast information according to the broadcast sequence number, a preset device broadcast duration, and the device identifier; and broadcasting the group broadcast information.

Description

Wireless fidelity sensing group broadcast method, core device and group member device

Technical field

The present disclosure relates to, but is not limited to, the field of mobile communication technologies.

Background technique

WiFi Aware technology is used to help users discover peripherals, applications and information before establishing a WiFi connection. WiFi Aware's "peripheral awareness" technology can run continuously in the background, sending a small amount of data messages intermittently, and the upper application can call this function to discover the surrounding application services. And this does not require the user to take the initiative to operate, after the service is discovered, the user can launch the application, establish a connection through WiFi Direct or traditional WiFi, and enable the corresponding application and service. WiFi Aware further enhances the convenience of social and location applications such as WiFi-based games, peer-to-peer messaging, distance assessment, media sharing and promotional push. Devices in the WiFi Aware group can communicate messages to each other by broadcast.

Summary of the invention

According to an aspect of the present disclosure, a WiFi Aware group broadcast method is provided, including: receiving and parsing first broadcast information sent by a group member device, where the first broadcast information carries a device identifier of the group member device; And assigning a broadcast sequence number to the group member device according to the device identifier, and acquiring the group period broadcast information according to the broadcast sequence number, the preset device broadcast duration, and the device identifier; and broadcasting the group broadcast information.

According to another aspect of the present disclosure, a WiFi Aware group broadcast method is provided, including: receiving and parsing group broadcast information sent by a core device, to obtain a broadcast duration, a broadcast sequence number, and a device carried in the group broadcast information. a device identifier corresponding to the broadcast sequence number; calculating a broadcast period and a broadcast period in the broadcast period according to the broadcast duration of the device, the broadcast sequence number, a device identifier corresponding to the broadcast sequence number, and a device identifier; Broadcasting is performed according to the broadcast period and the broadcast period.

According to another aspect of the present disclosure, a WiFi Aware core device is provided, including: a receiving and parsing module configured to receive and parse first broadcast information sent by a group member device, wherein the first broadcast information carries the The device identifier of the group member device; the group period broadcast information obtaining module is configured to allocate a broadcast sequence number to the group member device according to the device identifier, and obtain the group according to the broadcast sequence number, the preset device broadcast duration, and the device identifier. a group period broadcast information; and a broadcast module configured to broadcast the group broadcast information.

According to another aspect of the present disclosure, a WiFi Aware group member device is provided, including: a receiving and parsing module, configured to receive and parse group broadcast information sent by a core device, to obtain the group broadcast information a device broadcast duration, a broadcast sequence number, and a device identifier corresponding to the broadcast sequence number; a broadcast period and a broadcast period calculation module, configured to be based on the device broadcast duration, the broadcast sequence number, and a device identifier corresponding to the broadcast sequence number a self device identifier, a broadcast period and a broadcast period within the broadcast period; and a broadcast module configured to broadcast according to the broadcast period and the broadcast period.

DRAWINGS

Various advantages and benefits will become apparent to those of ordinary skill in the art in view of this description. The drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting. Throughout the drawings, the same reference numerals are used to refer to the same parts. In the drawing:

FIG. 1 is a flowchart of a WiFi Aware group broadcast method according to an embodiment of the present disclosure;

2 is a flowchart of a WiFi Aware group broadcast method according to another embodiment of the present disclosure;

3 is a flowchart of a group member device side in a WiFi Aware group broadcast method according to an embodiment of the present disclosure;

4 is a schematic structural diagram of a core device in a WiFi Aware group according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a group member device in a WiFi Aware group according to an embodiment of the present disclosure.

Detailed ways

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the disclosed exemplary embodiments are shown in the drawings, it is understood that Rather, these embodiments are provided so that this disclosure will be more fully understood and the scope of the disclosure will be fully disclosed.

FIG. 1 is a flowchart of a WiFi Aware group broadcast method according to an embodiment of the present disclosure.

As shown in FIG. 1, the WiFi Aware group broadcast method of the embodiment of the present disclosure includes steps S100 to S300.

In step 100, the first broadcast information sent by the group member device is received and parsed, wherein the first broadcast information carries the device identifier of the group member device.

WiFi Aware can continuously find compatible devices and establish connections, even if there is no traditional communication network such as GPS, cellular network or hotspot connection. This means it can work in densely populated or inaccessible areas, even if the device is not connected to any network. WiFi Aware Peripheral Perception technology can help a variety of applications implement service discovery by sending a very small amount of data information. In the WiFi Aware group consisting of the core device and the group member device, the core device is responsible for group group construction, and the first broadcast information sent by the group member device carries its own device identifier, and after the core device receives the first broadcast information, The device ID of the member device that is added to the WiFi Aware group is parsed for subsequent broadcast of the broadcast sequence number.

In step 200, a broadcast sequence number is allocated to the group member device according to the device identifier, and the group period broadcast information is acquired according to the broadcast sequence number, the preset device broadcast duration, and the device identifier.

When assigning a broadcast sequence number to a group member device that joins a group, it can be numbered according to the order in which the group members are added, or numbered according to various attributes of the group member device. Since the core device also needs to broadcast in the group, when the broadcast sequence number is assigned to the group member device, the broadcast sequence number needs to be simultaneously allocated to the core device.

The preset device broadcast duration may include the length of time each device in the group broadcasts. Within one broadcast duration, only one device can broadcast, and according to actual needs, the device broadcast duration can be flexibly set. The device broadcast duration is t1 seconds.

The duration of a group broadcast period can be calculated based on the assigned broadcast sequence number and the preset broadcast duration. If a group includes N devices (one core device and N-1 group member devices), the duration of one group broadcast period is N×t1, that is, within the duration of N×t1, each group within the group The devices broadcast according to the broadcast sequence numbers assigned by the core devices during their respective broadcast periods.

The core device needs to notify the group member devices of the broadcast sequence number assigned to each group member device in a group broadcast period. Therefore, in the group period broadcast information, the broadcast sequence number, the preset device broadcast duration, and Device identification, it can be understood that the group period broadcast information includes a broadcast period.

At step 300, the group broadcast information is broadcast.

When the core device broadcasts in the group, it may broadcast according to the broadcast time allocated to the core device in the group period broadcast information, or may not broadcast according to the broadcast time allocated to the core device in the group period broadcast information, but The group broadcast information is used as a self-defined periodic broadcast as information other than the broadcast information of each device of the group.

According to the WiFi Aware group broadcast method of the embodiment of the present disclosure, the core device receives the first broadcast information sent by the group member device to obtain the device identifier of the group member device that joins the group; and allocates the device identifier according to the group member device. Broadcasting the serial number, and acquiring the group period broadcast information according to the broadcast sequence number, the preset device broadcast duration, and the device identifier; then broadcasting the group broadcast information to enable the group member device to receive the broadcast according to the group broadcast information The serial number is broadcast after calculating its own broadcast period to avoid broadcast conflicts of devices in the group.

In an embodiment, the step of acquiring the group period broadcast information (ie, step 200) according to the broadcast sequence number, the preset device broadcast duration, and the device identifier may include: searching for the preset first correspondence according to the device identifier. And determining, by the device identifier, a broadcast duration of the device, where the first correspondence includes a correspondence between the device identifier and the broadcast duration of the device.

In the embodiment of the present disclosure, the attributes of the device corresponding to the device identifier may be acquired according to the device identifier, and different broadcast durations are allocated according to different attributes, and the attribute may be flexibly set.

According to the WiFi Aware group broadcast method of the embodiment of the present disclosure, in the process of acquiring the group period broadcast information, the core device may allocate different broadcasts according to the device identifier of each group member device by searching for the preset device duration correspondence relationship. The duration is to avoid the broadcast conflict of each device in the group, and take into account the actual demand of the broadcast duration of each device in the group, so that the group period broadcast message is more in line with the demand.

In an embodiment, the step of acquiring the group period broadcast information according to the broadcast sequence number, the preset device broadcast duration, and the device identifier (ie, step 200) may further include: according to the broadcast sequence number, a preset device broadcast duration And the device identifier and the broadcast interval duration, and the group period broadcast information is acquired.

When each device in the group broadcasts, the timing between the devices deviates with time, which may cause a conflict between broadcasts between two adjacent devices. Therefore, the broadcast interval duration can be set between each broadcast duration, for example, the broadcast interval duration is set to t2. Therefore, in a group consisting of N devices (one core device and N-1 group member devices), the duration of the group broadcast period is N × (t1 + t2), that is, at N × (t1 + t2) Within the duration of time, each device within the group broadcasts during the respective broadcast period according to the broadcast sequence number assigned by the core device, and the duration of t2 is separated between each broadcast period.

According to the WiFi Aware group broadcast method of the embodiment of the present disclosure, the broadcast interval duration is set between the broadcast durations of each device, and the broadcast conflict of each device in the group is better avoided.

In one embodiment, the WiFi Aware group broadcast method further includes a broadcast group synchronization signal, the group synchronization signal including a pulse signal.

Since each device in the group needs to be broadcast for a small period of time, time synchronization between devices is very important. If the time synchronization of each device in a group is not good, the two devices that should be connected before and after the broadcast will have a coincidence of the broadcast period. Therefore, the broadcast group synchronization signal used to synchronize the devices can maintain accurate synchronization of devices within the group. The synchronization signal may include a pulse signal, the synchronization signal may be periodically broadcasted, and the synchronization signal may be broadcast while broadcasting the group broadcast information.

According to the WiFi Aware group broadcast method implemented by the present disclosure, the core device broadcasts a synchronization signal to synchronize the group member devices in the group according to the synchronization signal, thereby avoiding broadcast conflicts of each device in the group due to time out of synchronization.

In an embodiment, when the core device finds that the device identifier in the received first broadcast information is not in the group broadcast information, the broadcast sequence number may be re-allocated according to all device identifiers in the first broadcast information that can be currently received. And broadcast the new group broadcast information to enable the newly joined group member device to broadcast. The embodiment of the present disclosure provides a joining mechanism of a group member device, which can update the group broadcast information in time with more equipment.

In an embodiment, when the core device recognizes that the group member device exits the current group, the broadcast sequence number may be re-allocated according to all device identifiers in the first broadcast information that can be currently received, and a new group is obtained. Broadcast after broadcasting the information. The embodiment of the present disclosure provides an exit mechanism of the group member device, which can improve the utilization rate of the group broadcast information.

FIG. 2 is a flowchart of a WiFi Aware group broadcast method according to another embodiment of the present disclosure.

As shown in FIG. 2, the WiFi Aware group broadcast method according to another embodiment of the present disclosure includes steps S10 to S30.

In step S10, the group broadcast information sent by the core device is received and parsed to obtain the device broadcast duration, the broadcast sequence number, and the device identifier corresponding to the broadcast sequence carried in the group broadcast information.

After receiving the group broadcast information sent by the core device, the member device in the WiFi Aware group obtains the broadcast duration of the device, the broadcast sequence number, and the device identifier corresponding to the broadcast sequence number. The same broadcast duration that can be assigned to each device, or the broadcast duration of different durations allocated for different devices based on device attributes.

In step S20, the broadcast period and the broadcast period in the broadcast period are calculated according to the device broadcast duration, the broadcast sequence number, the device identifier corresponding to the broadcast sequence number, and the own device identifier.

The group member device acquires a broadcast period and calculates a broadcast period in the group broadcast period according to the device identifier and the acquired device broadcast duration, broadcast sequence number, and device identifier corresponding to the broadcast sequence number.

In step S30, broadcasting is performed according to the broadcast period and the broadcast period.

The group member device broadcasts in accordance with the calculated broadcast period, in conjunction with its own timer, during the corresponding broadcast period in each broadcast period.

According to the WiFi Aware group broadcast method of the embodiment of the present disclosure, the group member device receives the group broadcast information sent by the core device to obtain the device broadcast duration, the broadcast sequence number, and the device identifier corresponding to the broadcast sequence number carried in the group broadcast information. Then, the broadcast period and the broadcast period in the broadcast period are calculated, and broadcast is performed according to the broadcast period and the broadcast period. Each group member device in the group avoids broadcast conflicts of devices in the group by acquiring respective broadcast periods.

In an embodiment, the step of calculating a broadcast period and a broadcast period in the broadcast period according to the device broadcast duration, the broadcast sequence number, the device identifier corresponding to the broadcast sequence number, and the own device identifier (ie, the step S20) may include: acquiring a broadcast period in the group period broadcast information; and, in the broadcast period, according to the broadcast duration, the broadcast sequence number, a device identifier corresponding to the broadcast sequence number, and a device identifier Calculate the broadcast period.

First, the number of devices in the group to be broadcasted is determined according to the broadcast sequence number, for example, N devices need to broadcast, and then the broadcast period N×t1 is calculated according to the broadcast sequence number and the broadcast duration (for example, t1), and then according to the calculated broadcast period. And the broadcast sequence number to determine the broadcast period.

According to the WiFi Aware group broadcast method of the embodiment of the present disclosure, the group member device calculates a broadcast period and a broadcast period within the broadcast period, and broadcasts according to the broadcast period and the broadcast period. Each group member device in the group avoids broadcast conflicts of devices in the group by acquiring respective broadcast periods.

In one embodiment, the method on the core device side includes the following steps.

The core device is responsible for group formation and receives a broadcast containing a unique identifier sent by each member device. The core device assigns a sequence number to each device according to the order in which the other group members join, and allocates a time period in which each group member device transmits the broadcast, and each device allows the broadcast time window to be t1 seconds in one time period T, The neighboring window is separated by t2 seconds, and the period size T=N*(t1+t2) is determined according to the number N of devices, so that only one device in the group can be allowed to send broadcasts at the same time.

The core device sends a synchronization signal every m cycles. If a device exits or a new device joins, the time interval is recalculated, and the sequence number of each device is rearranged, then the broadcast is sent to other devices, and a new synchronization signal is sent. . The sync signal can be a simple pulse signal.

The other group member device uses the synchronization signal as a reset signal to recalculate the time window in which the device transmits the broadcast.

FIG. 3 is a flowchart of a group member device side in a WiFi Aware group broadcast method according to an embodiment of the present disclosure.

As shown in FIG. 3, the method on the group device side includes the following steps 1 to 4.

In step 1, the transmission start information is received.

When the user of the group member device needs to send a message, the send button of the group member device is pressed, and the group member device receives the send start message.

In step 2, when the current time is not in the broadcast period, the time length from the next broadcast period is calculated to obtain a time difference.

The group member device determines whether the current time is in its own broadcast period, and if the current time is in its own broadcast period, the broadcast information is transmitted. When the current time is not in its own broadcast period, the group member device calculates the duration of the next self-broadcast period that is closest to the current time, and obtains the time difference from the next broadcast period.

In step 3, the timer is started to start timing.

In step 4, when the timer counts the time difference, the broadcast information is transmitted.

The timer stops counting after the broadcast message is sent.

According to an embodiment of the present disclosure, the broadcast period is calculated by setting a timer so that the group member device can transmit the broadcast information within the broadcast period belonging to itself.

FIG. 4 is a schematic structural diagram of a core device in a WiFi Aware group according to an embodiment of the present disclosure.

As shown in FIG. 4, the core device in the WiFi Aware group of the embodiment of the present disclosure includes a receiving and parsing module 100, a group period broadcast information acquiring module 200, and a broadcasting module 300.

The receiving and parsing module 100 is configured to receive and parse the first broadcast information sent by the group member device, where the first broadcast information carries the device identifier of the group member device.

The group period broadcast information obtaining module 200 is configured to allocate a broadcast sequence number to the group member device according to the device identifier, and obtain the group period broadcast information according to the broadcast sequence number, the preset device broadcast duration, and the device identifier. According to an embodiment of the present disclosure, the group period broadcast information acquiring module 200 may further be configured to acquire group period broadcast information according to the broadcast sequence number, a preset device broadcast duration, the device identifier, and a broadcast interval duration.

The broadcast module 300 is arranged to broadcast the group broadcast information. According to an embodiment of the present disclosure, the broadcast module 300 may also be configured to broadcast a group synchronization signal, the group synchronization signal including a pulse signal.

The WiFi Aware group core device according to the embodiment of the present disclosure receives the first broadcast information sent by the group member device to obtain the device identifier of the group member device that joins the group; and assigns the broadcast sequence number according to the device identifier of the group member device. And acquiring the group period broadcast information according to the broadcast sequence number, the preset device broadcast duration, and the device identifier; and then broadcasting the group broadcast information so that after the group member device receives the broadcast sequence number in the group broadcast information, Broadcast after calculating its own broadcast period to avoid broadcast conflicts of devices in the group.

As shown in FIG. 5, the group member device in the WiFi Aware group of the embodiment of the present disclosure includes a receiving and parsing module 10, a broadcast period and a broadcast period calculation module 20, and a broadcast module 30.

The receiving and parsing module 10 is configured to receive and parse the group broadcast information sent by the core device, to obtain the device broadcast duration, the broadcast sequence number, and the device identifier corresponding to the broadcast sequence carried in the group broadcast information, and is further configured to Receive send start information.

The broadcast period and broadcast period calculation module 20 is configured to calculate a broadcast period and a broadcast period in the broadcast period according to the device broadcast duration, the broadcast sequence number, the device identifier corresponding to the broadcast sequence number, and the own device identifier. The broadcast period and broadcast period calculation module 20 includes: a broadcast period acquisition unit configured to acquire a broadcast period in the group period broadcast information; and a broadcast period calculation unit configured to be within the broadcast period, according to the The broadcast duration, the broadcast sequence number, the device identifier corresponding to the broadcast sequence number, and the own device identifier are calculated, and the broadcast period is calculated. The broadcast period and broadcast period calculation module 20 further includes: a time difference calculation unit configured to calculate a duration from the next broadcast period when the current time is not in the broadcast period, to obtain a time difference; and a timer start unit that is set to start The timer starts timing.

The broadcast module 30 is configured to perform broadcast according to the broadcast period and the broadcast period, and is further configured to transmit broadcast information when the duration of the timer count reaches the time difference.

The WiFi Aware group member device according to the embodiment of the present disclosure receives the group broadcast information sent by the core device to obtain the device broadcast duration, the broadcast sequence number, and the device identifier corresponding to the broadcast sequence number carried in the group broadcast information, and then The broadcast period and the broadcast period within the broadcast period are calculated, and broadcasted according to the broadcast period and the broadcast period. Each group member device in the group avoids broadcast conflicts of devices in the group by acquiring respective broadcast periods.

Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and functional blocks/units of the methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical The components work together. Certain physical components or all physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor or microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application specific integrated circuit. . Such software may be distributed on a computer readable medium, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and nonvolatile, implemented in any method or technology for storing information, such as computer readable instructions, data structures, program modules or other data. Sex, removable and non-removable media. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridge, magnetic tape, magnetic disk storage or other magnetic storage device, or may Any other medium used to store the desired information and that can be accessed by the computer. Moreover, it is well known to those skilled in the art that communication media typically includes computer readable instructions, data structures, program modules, or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and can include any information delivery media. .

The above description is only an embodiment of the present disclosure, and is not intended to limit the scope of the disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and scope of the present disclosure are intended to be included within the scope of the present disclosure.

Claims

A wireless fidelity-aware WiFi Aware group broadcast method includes:

Receiving and parsing the first broadcast information sent by the group member device, where the first broadcast information carries the device identifier of the group member device;

Assigning a broadcast sequence number to the group member device according to the device identifier, and acquiring the group period broadcast information according to the broadcast sequence number, the preset device broadcast duration, and the device identifier;

Broadcasting the group broadcast information.
The WiFi Aware group broadcast method according to claim 1, wherein the step of acquiring group period broadcast information comprises:

The group period broadcast information is acquired according to the broadcast sequence number, the preset device broadcast duration, the device identifier, and the broadcast interval duration.
The method of broadcasting a WiFi Aware group according to claim 1, further comprising:

Broadcast group synchronization signal, wherein the group synchronization signal includes a pulse signal.
A wireless fidelity-aware WiFi Aware group broadcast method includes:

Receiving and parsing the group broadcast information sent by the core device, to obtain the device broadcast duration, the broadcast sequence number, and the device identifier corresponding to the broadcast sequence number carried in the group broadcast information;

Calculating a broadcast period and a broadcast period in the broadcast period according to the broadcast duration of the device, the broadcast sequence number, a device identifier corresponding to the broadcast sequence number, and an own device identifier;

Broadcasting is performed according to the broadcast period and the broadcast period.
The WiFi Aware group broadcast method according to claim 4, wherein the broadcast period and the broadcast period are calculated according to the broadcast duration of the device, the broadcast sequence number, the device identifier corresponding to the broadcast sequence number, and the device identifier. The steps of the broadcast period within:

Obtaining a broadcast period in the group period broadcast information;

During the broadcast period, the broadcast period is calculated according to the broadcast duration, the broadcast sequence number, the device identifier corresponding to the broadcast sequence number, and the device identifier.
The method of broadcasting a WiFi Aware group according to claim 4, further comprising:

Receiving and sending start information;

When the current time is not in the broadcast period, the duration from the next broadcast period is calculated, and the time difference is obtained;

Start the timer to start timing;

The broadcast information is transmitted when the duration of the timer is timed to reach the time difference.
A wireless fidelity-aware WiFi Aware core device, including:

a receiving and parsing module, configured to receive and parse the first broadcast information sent by the group member device, where the first broadcast information carries the device identifier of the group member device;

a group period broadcast information obtaining module, configured to allocate a broadcast sequence number to the group member device according to the device identifier, and obtain the group period broadcast information according to the broadcast sequence number, the preset device broadcast duration, and the device identifier;

A broadcast module configured to broadcast the group broadcast information.
The WiFi Aware core device of claim 7, wherein the group period broadcast information acquisition module is further configured to:

The group period broadcast information is acquired according to the broadcast sequence number, the preset device broadcast duration, the device identifier, and the broadcast interval duration.
The WiFi Aware core device of claim 7, wherein the broadcast module is further configured to:

Broadcast group synchronization signal, wherein the group synchronization signal includes a pulse signal.
A wireless fidelity-aware WiFi Aware group member device, including:

a receiving and parsing module, configured to receive and parse the group broadcast information sent by the core device, to obtain a device broadcast duration, a broadcast sequence number, and a device identifier corresponding to the broadcast sequence carried in the group broadcast information;

a broadcast period and a broadcast period calculation module, configured to calculate a broadcast period and a broadcast period in the broadcast period according to the broadcast duration of the device, the broadcast sequence number, a device identifier corresponding to the broadcast sequence number, and a device identifier; as well as

A broadcast module configured to broadcast according to the broadcast period and the broadcast period.
The WiFi Aware group member device of claim 10, wherein the broadcast period and broadcast period calculation module comprises:

a broadcast period acquisition unit configured to acquire a broadcast period in the group period broadcast information;

a broadcast period calculation unit configured to calculate the broadcast period according to the broadcast duration, the broadcast sequence number, a device identifier corresponding to the broadcast sequence number, and a device identifier in the broadcast period.
The WiFi Aware group member device according to claim 10, wherein

The receiving and parsing module is further configured to receive and send start information.

The broadcast period and broadcast period calculation module further includes:

a time difference calculation unit configured to calculate a duration from a next broadcast period when the current time is not in the broadcast period, to obtain a time difference;

a timer start unit, which is set to start the timer to start timing, and

The broadcast module is further configured to send broadcast information when the duration of the timer is timed to reach the time difference.
A wireless fidelity-aware WiFi Aware core device comprising a memory and a processor on which is stored a computer program, the processor executing the claims 1 to 3 when the computer program is executed by the processor The WiFi Aware group broadcast method according to any one of the preceding claims.
A wireless fidelity-aware WiFi Aware group member device comprising a memory and a processor, on which is stored a computer program, the computer program being executed by the processor, the processor executing as claimed in claim 4 The WiFi Aware group broadcast method according to any one of the preceding claims.
A computer readable storage medium having stored thereon a computer program, the processor executing the wireless fidelity-aware WiFi Aware group according to any one of claims 1 to 6 Group broadcast method.