WO2024139374A1 - Communication method - Google Patents

Abstract

Embodiments of the present application relate to the technical field of communications. Disclosed is a communication method, for enabling devices to rationally select, according to information such as the capability of each device and P2P communication service types before establishing a P2P connection, a channel and a device serving as GO, thereby improving the quality of P2P communication. The specific solution is as follows: a first electronic device sends P2P request information to a second electronic device, the P2P request information comprising at least one of the following: a first available channel set, a communication service type of first P2P communication, and first capability information of the first electronic device; the second electronic device receives the P2P request information; the second electronic device determines a P2P communication configuration according to the P2P request information, the P2P communication configuration being used for establishing the first P2P communication; and the second electronic device sends P2P response information to the first electronic device, the P2P response information comprising the P2P communication configuration.

Description

A communication method

This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on December 30, 2022, with application number 202211736057.9 and invention name “A Communication Method”, all contents of which are incorporated by reference in this application.

Technical Field

The present application relates to the field of communication technology, and in particular to a communication method.

Background technique

At present, electronic devices can achieve fast data transmission between devices by establishing WIFI P2P communication. For example, based on this WIFI P2P communication, functions such as file sharing, multi-screen collaboration, and screen projection can be realized between devices.

Properly establishing WIFI P2P communication connection is the key to ensuring the quality of WIFI P2P communication.

Summary of the invention

The embodiment of the present application provides a communication method to improve the quality of P2P communication.

In order to achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

In a first aspect, a communication method is provided, which is applied to a communication system, the communication system comprising a first electronic device and a second electronic device, and the method is used to establish a first point-to-point P2P communication between the first electronic device and the second electronic device. The method comprises: the first electronic device sends P2P request information to the second electronic device, the P2P request information comprises first device information, the first device information comprises at least one of the following: a first available channel set, a communication service type of the first P2P communication, and first capability information of the first electronic device. The first available channel set is used to indicate at least one channel, and the at least one channel indicated by the first available channel set can be used for the first electronic device to perform P2P communication. The second electronic device receives the P2P request information. The second electronic device determines a P2P communication configuration according to the P2P request information. The P2P communication configuration is used to establish the first P2P communication. The second electronic device sends a P2P response information to the first electronic device, and the P2P response information comprises the P2P communication configuration.

From the perspective of the second electronic device, the method includes: the second electronic device receives P2P request information from the first electronic device, the P2P request information includes first device information, and the first device information includes at least one of the following: a first available channel set, a communication service type of the first P2P communication, and first capability information of the first electronic device; wherein the first available channel set is used to indicate at least one channel, and the at least one channel indicated by the first available channel set can be used for the first electronic device to perform P2P communication; the second electronic device determines a P2P communication configuration based on at least the P2P request information; the P2P communication configuration is used to establish the first P2P communication; the second electronic device sends a P2P response information to the first electronic device, and the P2P corresponding information includes the P2P communication configuration.

In this example, the first electronic device and the second electronic device can obtain the device information of the opposite device before establishing P2P communication. For example, take the first electronic device as the initiating device. The first electronic device can execute the scheme in this example after receiving the operation of initiating P2P communication input by the user. That is, the first device information is sent to the second electronic device, so that the second electronic device can reasonably judge the device selected as the GO and the channel for P2P communication based on the first device information and the second device information.

Optionally, the P2P communication configuration is used to indicate a channel for performing the first P2P communication, and/or a device as a manager GO or a managed GC in the first P2P communication. Thus, the second electronic device can determine the channel and/or device setting information for performing the P2P communication by determining the communication configuration, thereby improving the quality of the P2P communication established based on the P2P configuration.

Optionally, the communication service type of the first P2P communication includes: file sharing, screen projection, or multi-screen collaboration.

Optionally, the communication service type of the first P2P communication includes: high-throughput communication priority, or low-latency communication priority.

In this way, two examples of dividing communication service types in different dimensions are provided. In a specific implementation, any one of the above examples can be selected, or the above two examples can be combined to divide P2P communication.

Optionally, the first electronic device sending the P2P request information to the second electronic device includes: the P2P request information carries a first identifier. When the value of the first identifier is different, the communication service type corresponding to the first P2P communication is different.

Optionally, the first capability information of the first electronic device includes at least one of the following: whether the first electronic device supports dual-band dual-transmit DBDC, whether the first electronic device supports GO channel switching declaration GO CSA, and whether the first electronic device supports GC CSA.

Optionally, the first electronic device sending the P2P request information to the second electronic device includes: the P2P request information carries a second identifier. When the second identifier is different, it corresponds to the difference in the first capability information.

Based on this, an evaluation example of device information is provided. For example, whether the device supports DBDC, so that a P2P connection that is more in line with the current P2P communication can be established based on the established STA communication. Another example is whether the device supports CSA, so that when the STA communication channel is switched, the device can implement the follow-up switching of P2P communication based on the CSA capability.

Optionally, the P2P configuration information includes a first available channel set and a communication service type of the first P2P communication. The P2P communication configuration includes a channel used for the first P2P communication. Before the second electronic device determines the P2P communication configuration according to the P2P request information, the method further includes: the second electronic device determines second device information, the second device information includes a second available channel set of the second electronic device, and the second electronic device determines the P2P communication configuration according to the P2P request information, including: the second electronic device determines the channel used for the first P2P communication according to the first available channel set, the second available channel set, and the communication service type of the first P2P communication.

Optionally, the second electronic device determines the channel for performing the first P2P communication according to the first available channel set, the second available channel set, and the communication service type of the first P2P communication, including: the second electronic device determines a first intersection of the first available channel set and the second available channel set, the first intersection including at least one channel. The second electronic device selects a channel for performing the first P2P communication from the first intersection according to the communication service type of the first P2P communication.

In this way, based on the type of P2P communication to be initiated, a corresponding channel is selected to establish a P2P connection, so that the communication channel can be better matched to the current P2P communication, thereby providing a better throughput rate and/or delay.

Optionally, the P2P configuration information includes the first capability information of the first electronic device. The P2P communication configuration package is used as a device that acts as a manager GO or a managed GC in the first P2P communication. Before the second electronic device determines the P2P communication configuration according to the P2P request information, the method further includes: the second electronic device determines the second device information, and the second device information includes the second capability information of the second electronic device. The second electronic device determines the P2P communication configuration according to the P2P request information, including: the second electronic device determines the P2P communication configuration according to the first capability information, and the second capability information, determining a device serving as a GO or a device serving as a GC in the first P2P communication.

Optionally, the second electronic device determines the device as a GO or a GC in the first P2P communication according to the first capability information and the second capability information, including: when the first capability information indicates that the first electronic device supports DBDC and the second capability information indicates that the second electronic device does not support DBDC, the second electronic device determines the first electronic device as a GO device for the first P2P communication. When the first capability information indicates that the first electronic device does not support DBDC and the second capability information indicates that the second electronic device supports DBDC, the second electronic device determines the second electronic device as a GO device for the first P2P communication. When the first capability information indicates that the first electronic device does not support DBDC, but the first electronic device supports GO CSA. When the second capability information indicates that the second electronic device does not support DBDC and the second electronic device does not support GO CSA, the second electronic device determines the first electronic device as a GO device for the first P2P communication. When the first capability information indicates that the first electronic device does not support DBDC and the first electronic device does not support GO CSA. The second capability information indicates that the second electronic device does not support DBDC, but when the second electronic device supports GO CSA, the second electronic device determines that the second electronic device serves as the GO device of the first P2P communication.

Therefore, by judging the device capabilities, a device with stronger capabilities is selected as the GO device, so as to facilitate the subsequent switching of STA communication, or when a P2P connection is established based on the established STA communication, the optimized configuration of P2P communication is realized through the stronger device capabilities.

Optionally, before the first electronic device sends the P2P request information, the first electronic device establishes a first communication connection with a routing device. The first device information also includes: connection information of the first communication connection.

Optionally, the connection information of the first communication connection indicates that the first communication connection is established on a first STA channel of 5G or 6G WIFI. The second electronic device determines the P2P communication configuration according to the P2P request information, including: the second electronic device determines that the channel for performing the first P2P communication is the first STA channel.

Optionally, before the second electronic device receives the P2P request information, the second electronic device establishes a second communication connection with the routing device. The second communication connection is established on a second STA channel of 5G or 6G WIFI. The second electronic device determines the P2P communication configuration according to the P2P request information, including: the second electronic device determines that the channel for the first P2P communication is the second STA channel.

In this example, when determining the P2P communication channel, the established STA channel can also be referenced. It can be understood that when the P2P communication channel is set to follow the STA channel, the same frequency and channel operation of P2P communication and STA communication can be achieved. This reduces the switching overhead of the transmitting device, and at the same time, even if the device does not support DBDC, STA communication and P2P communication can be performed simultaneously.

Optionally, a scoring rule is preset in the second electronic device, and the scoring rule includes M preconfigured items. The second electronic device scores the first electronic device according to the first device information and the scoring rule, and obtains the scoring result corresponding to the first electronic device. The second electronic device scores the second electronic device according to the second device information, and obtains the scoring result corresponding to the second electronic device. The second device information includes at least one of the following: a second available channel set, and second capability information of the second electronic device. Among them, the second available channel set is used to indicate at least one channel, and the at least one channel indicated by the second available channel set can be used for the second electronic device to perform P2P communication. The second electronic device determines the P2P communication configuration according to the scoring result corresponding to the first electronic device and the scoring result corresponding to the second electronic device.

Based on this example, another solution for determining the P2P communication configuration is provided. For example, the second electronic device can score the first electronic device and the second electronic device respectively. According to the scoring results, the first electronic device and the second electronic device can be accurately determined. Efficient determination of P2P configuration is now possible.

It should be noted that, in this example, the second electronic device scores the first electronic device. As a result, the preset scoring rules only need to be deployed in the second electronic device. At the same time, it can avoid the situation where the scoring rules in the first electronic device are inconsistent with the scoring rules of the second electronic device, resulting in low score confidence caused by the scoring of the two-end devices. In other implementations, the first electronic device can also score itself in the first electronic device based on the same scoring rules as the second electronic device. As a result, the first electronic device can directly send the scoring results of the first electronic device to the second electronic device. The second electronic device only needs to score the second electronic device.

Optionally, the first device information includes a first set of available channels, and the second device information includes a second set of available channels. Before the second electronic device scores the first electronic device or the second electronic device, the method further includes: the second electronic device determines a first intersection of the first set of available channels and the second set of available channels, and the first intersection includes N channels.

Optionally, the second electronic device scores the first electronic device according to the first device information and the scoring rule to obtain a scoring result corresponding to the first electronic device, including: for each channel in the first intersection, the second electronic device scores the first electronic device according to the scoring rule and the first device information to obtain M scoring results corresponding to each pre-configuration item in the M pre-configuration items. Based on the M scoring results, determine the first scoring result corresponding to the channel. The scoring result corresponding to the first electronic device includes N first scoring results corresponding to N channels.

Optionally, determining a first scoring result corresponding to the channel according to the M scoring results includes: taking a sum of the M scoring results as the first scoring result corresponding to the channel.

Optionally, the second electronic device scores the second electronic device according to the second device information and the scoring rule, and obtains a scoring result corresponding to the second electronic device, including: for each channel in the first intersection, the second electronic device scores the second electronic device according to the scoring rule and the second device information to obtain M scoring results corresponding to each pre-configuration item in the M pre-configuration items. Based on the M scoring results, determine the second scoring result corresponding to the channel. The scoring result corresponding to the second electronic device includes N second scoring results corresponding to N channels.

Optionally, the second electronic device determines the P2P communication configuration according to the scoring result corresponding to the first electronic device and the scoring result corresponding to the second electronic device, including: the second electronic device determines a third scoring result corresponding to each of the N channels, the third scoring result being the sum of the first scoring result and the second scoring result of the channel. The second electronic device selects the first channel from the N channels as the channel for the first P2P communication. The third scoring result of the first channel is greater than the third scoring results of other channels.

Optionally, the second electronic device determines the P2P communication configuration according to the scoring result corresponding to the first electronic device and the scoring result corresponding to the second electronic device, further comprising: when the first scoring result of the first channel is greater than the second scoring result, the second electronic device determines the first electronic device as a GO device. When the first scoring result of the first channel is less than the second scoring result, the second electronic device determines the second electronic device as a GO device.

This example provides a specific implementation of a scheme for selecting a GO device and a P2P communication channel based on a scoring rule. It is understandable that the scoring rule may be preset in the electronic device, or the scoring rule may be requested by the electronic device to the cloud device. In other words, the preset scoring rule may be set in the cloud device and issued in real time according to the usage of the terminal device, thereby ensuring that the scoring rules in the device are the latest and most reliable.

In some implementations, the scoring rule can be obtained through neural network model training. With the increase of P2P communication connection samples based on the scoring rule, the scoring rule can be continuously updated and learned to make the scoring rule more accurate, thereby continuously improving the quality of P2P communication initiated based on the scoring rule.

In a second aspect, a communication method is provided, which is applied to a communication system, and the communication system includes a first electronic device and a second electronic device. The method is used to establish a P2P communication connection between the first electronic device and the second electronic device, and the P2P communication connection is used for screen projection or multi-screen collaboration. The first electronic device supports CSA, and the second electronic device does not support CSA. The first available channel set of the first electronic device includes a first channel and a second channel. The first channel is a 2.4G channel, and the second channel is a 5G channel. The second available channel set of the second electronic device also includes the first channel and the second channel. The method includes: using the second channel as the channel of the P2P communication connection. When the first electronic device supports GO CSA, the first electronic device is used as the GO device of the P2P communication connection. When the first electronic device supports GC CSA, the first electronic device or the second electronic device is used as the GO device of the P2P communication connection.

In a third aspect, a communication method is provided, which is applied to a communication system, wherein the communication system includes a first electronic device and a second electronic device. The method is used to establish a P2P communication connection between the first electronic device and the second electronic device, and the P2P communication connection is used for file transfer. The first available channel set of the first electronic device includes a first channel and a second channel. The first channel is a 2.4G channel, and the second channel is a 5G channel. The second available channel set of the second electronic device also includes the first channel and the second channel. The method includes: using the second channel as a channel for the P2P communication connection.

In a fourth aspect, an electronic device is provided. The electronic device may be the first electronic device in the above example. The electronic device may be used to implement the technical solution involved in the first electronic device provided in the first aspect and any possible design thereof.

In a fifth aspect, an electronic device is provided. The electronic device may be the second electronic device in the above example. The electronic device may be used to implement the technical solution involved in the second electronic device provided in the first aspect and any possible design thereof.

In a sixth aspect, a communication system is provided, which includes a first electronic device and a second electronic device. When the communication system is working, the first electronic device and the second electronic device establish P2P communication according to the technical solution provided in the first aspect and any possible design thereof.

In the seventh aspect, a chip system is provided. The chip system can be set in a first electronic device and/or a second electronic device. The chip system includes an interface circuit and a processor; the interface circuit and the processor are interconnected through a line; the interface circuit is used to receive a signal from a memory and send a signal to the processor, and the signal includes a computer instruction stored in the memory; when the processor executes the computer instruction, the chip system supports the first electronic device and/or the second electronic device to execute the technical solution provided in any one of the above-mentioned first aspect and various possible designs.

In an eighth aspect, a computer-readable storage medium is provided, which includes computer instructions. When the computer instructions are executed, the first electronic device or the second electronic device executes the technical solution provided in the first aspect and any one of various possible designs.

In a ninth aspect, a computer program product is provided, which includes instructions. When the computer program product runs on a first electronic device and/or a second electronic device, the first electronic device and/or the second electronic device executes the technical solution provided in the first aspect and any one of various possible designs.

It should be understood that the technical features of the technical solutions provided in the second to ninth aspects above can all correspond to The methods provided in the first aspect and possible designs thereof can achieve similar beneficial effects, which will not be described in detail here.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of an electronic device performing wireless communication;

FIG2 is a schematic diagram of an electronic device performing STA communication with a routing device;

FIG3 is a schematic diagram of P2P communication for file sharing between devices;

FIG4 is a schematic diagram of P2P communication for multi-screen collaboration between devices;

FIG5 is a schematic diagram of P2P communication for screen projection between devices;

FIG6 is a schematic diagram of multiple devices performing WIFI communication;

FIG7 is a schematic diagram of multiple devices performing WIFI communication;

FIG8 is a logic diagram of a communication method provided in an embodiment of the present application;

FIG9 is a schematic diagram of device interaction of a communication method provided in an embodiment of the present application;

FIG10 is a schematic diagram of P2P communication channel selection in a file sharing scenario provided by an embodiment of the present application;

FIG11 is a schematic diagram of a P2P communication channel selection in a screen projection scenario provided by an embodiment of the present application;

FIG12 is a schematic diagram of device interaction of a communication method provided in an embodiment of the present application;

FIG13 is a schematic diagram of selecting a GO device according to device capabilities provided in an embodiment of the present application;

FIG14 is a schematic diagram of device interaction of a communication method provided in an embodiment of the present application;

FIG15 is a schematic diagram of a device according to an embodiment of the present application scoring each available channel;

FIG16 is a schematic diagram of a device providing a scoring method for each available channel according to an embodiment of the present application;

FIG17 is a schematic diagram of device interaction of a communication method provided in an embodiment of the present application;

FIG18 is a schematic diagram of the composition of an electronic device provided in an embodiment of the present application;

FIG19 is a schematic diagram of the composition of a chip system provided in an embodiment of the present application.

Detailed ways

Electronic devices can be interconnected with other devices based on wireless communication protocols.

Take the wireless communication protocol including the WI-FI protocol based on the wireless local area network (WLAN) as an example. Based on the WIFI protocol, the electronic device can realize the interconnection communication with the routing device and/or other electronic devices. Among them, the interconnection communication established based on the WIFI protocol can be operated on the 2.4G WIFI channel or on the 5G WIFI channel. In some implementations, the interconnection communication can also be operated on the channel corresponding to the higher frequency band such as 6G WIFI.

In some embodiments, the wireless communication based on the WIFI protocol may include WIFI STA communication interacting with a routing device, and WIFI P2P communication interacting with other electronic devices. In the following examples, WIFI P2P communication may also be referred to as P2P communication. WIFI STA communication may also be referred to as STA communication.

Exemplarily, in conjunction with FIG1 , the first electronic device can interact with the routing device based on STA communication. Through the STA communication, the first electronic device can access the external network through the routing device and interact with the external network. Alternatively, through the STA communication, the first electronic device can access the local area network where the routing device is located through the routing device, so as to communicate with other devices in the local area network.

As an example, as shown in Figure 2, taking the first electronic device as device 21 and the routing device as a router as an example, the device 21 and the router can establish STA communication based on 2.4G or 5G.

As shown in FIG1 , the first electronic device can also interact with other electronic devices (such as the second electronic device) based on P2P communication. Through the P2P communication, the first electronic device can directly share files with the second electronic device, P2P interactions such as multi-screen collaboration and screen projection. In other embodiments, based on the P2P communication, P2P interactions other than file sharing, multi-screen collaboration and screen projection shown in FIG1 can also be realized. For example, the P2P interaction can also include: Sidecar, vehicle-machine interaction (such as HiCar), WLAN direct connection, etc.

Exemplarily, in some embodiments, the first electronic device and the second electronic device may share files via P2P communication.

Referring to Figure 3, take the first electronic device as device 31 and the second electronic device as device 32 as an example. Device 31 can receive an operation in which a user selects a file and shares it. In response to this operation, device 31 can scan and display other devices (such as device 32) that can perform P2P communication on the interface. After the user selects device 32, device 31 and device 32 can establish P2P communication on a 2.4G or 5G channel. Through this P2P communication, device 31 and device 32 can transfer file data to each other. In this example, device 31 can be called a device that initiates file sharing, or a device that initiates P2P communication, or an initiating device.

In other embodiments, the first electronic device and the second electronic device can perform multi-screen collaboration through P2P communication.

Referring to FIG. 4 , the first electronic device is device 41 (such as a tablet computer) and the second electronic device is device 42 (such as a mobile phone) as an example. After receiving the operation triggered by the user to perform multi-screen collaboration, device 42 can scan nearby devices (such as device 41) that can be used for collaboration through BLE/WIFI P2P. After the user's authorization, device 41 and device 42 can establish P2P communication on a 2.4G or 5G channel. Through this P2P communication, device 41 and device 42 can perform multi-screen collaboration. For example, device 42 can transmit the current interface information to device 41 through multi-screen collaboration. Device 41 can display window 43 on the display screen of device 41 according to the interface information transmitted by device 42. The display elements in window 43 can correspond to the display elements of device 42. This allows the user to control device 42 on device 41 according to the display window 43. In this example, device 42 can be called a device that initiates multi-screen collaboration, or an initiating end device.

In other embodiments, the first electronic device and the second electronic device can perform screen projection through P2P communication.

Referring to Figure 5, take the first electronic device as device 51 (such as a large screen) and the second electronic device as device 52 (such as a mobile phone) as an example. After receiving the user's screen projection instruction, device 52 can scan the available screen projection devices (such as device 51) in the current local area network environment. After the user's authorization, device 51 and device 52 can establish P2P communication on a 2.5G or 5G channel. Through this P2P communication, device 51 and device 52 can cast the screen. For example, device 52 can transmit the currently displayed screen information to device 51, so that the content played on device 52 can be viewed through device 51 with a larger display screen. In this example, device 52 can be called a device that initiates screen projection, or an initiating device.

It should be noted that when performing P2P communication, one of the two devices can be a manager (group owner, GO), and the other corresponding device can be a managed (group client, GC). Among them, GO can be used to manage the current P2P communication. For example, GO can determine the channel used for P2P communication and notify GC to use the channel to establish P2P communication with GO. For another example, GO can also notify GC to perform the corresponding channel switching operation when channel switching is required.

In some embodiments, the initiating end device may be set as GO by default, and the corresponding other end device may be set as GC by default.

For example, take file sharing through P2P communication as an example. The device that initiates the file sharing operation (such as device 31 in Figure 3) can be used as the GO. The corresponding device 32 can be used as the GC in the P2P communication. Then, device 31 can determine the channel used in the current P2P communication and notify device 32 so that device 32 can communicate with the other device through the channel. Device 31 establishes P2P communication for file sharing.

For another example, taking multi-screen collaboration through P2P communication as an example, the device that initiates the multi-screen collaboration operation (such as device 42 in FIG. 4 ) can serve as a GO, and the corresponding device 41 can serve as a GC in the P2P communication.

For another example, taking screen projection through P2P communication as an example, the device that initiates the screen projection operation (such as device 52 in FIG. 5 ) can serve as a GO, and the corresponding device 51 can serve as a GC in the P2P communication.

Of course, in other implementations, the GO device can also be set to be different from the device that initiates the screen projection operation. For example, take the device 51 in Figure 5 as a large screen and the device 52 as a mobile phone. Under the control of the user, the mobile phone can scan the relevant controls on the large screen to initiate a screen projection connection. In other words, the mobile phone in this example can be used as a device to initiate a screen projection operation. In this example, the large screen can be set as a management device for the GO device to perform P2P communication.

The examples in Figures 2 to 5 above are based on the example of STA communication and P2P communication between devices. In other scenarios, the first electronic device can also perform STA communication with the routing device and perform P2P communication with the second electronic device at the same time.

For example, in conjunction with Figure 3, take file sharing between devices and connecting to a router as an example. Please refer to Figure 6. Device 31 can be used as a P2P communication initiator to initiate a P2P communication connection to device 32. Then, device 31 can be used as a GO, and the corresponding device 32 can be used as a GC.

In this example, device 31 can also establish 2.4G STA communication with the router before establishing P2P communication.

In combination with the above description, device 31, as a GO, can have the function of determining the channel used for P2P communication. In some embodiments, device 31 can set the P2P communication channel to the STA communication channel. For example, device 31 can set the communication channel with device 32 to the channel in the 2.4G frequency band in which STA communication is ongoing. In this way, the STA communication between device 31 and the router and the P2P communication process with device 32 can be implemented through data transmission of one channel. Correspondingly, the router can filter the data corresponding to STA communication from the data in the channel, and device 32 can filter the data corresponding to P2P communication from the data in the channel. In this way, the data transmission overhead of device 31 can be saved.

However, there will be some problems. Combined with the example of Figure 3. In the P2P communication scenario of file sharing, the amount of data of the transmitted file can be large. Then, through the data transmission mechanism of the same frequency and channel as STA communication, the file sharing data may not be transmitted quickly. In addition, in this example, the P2P communication channel is a 2.4G channel that follows STA communication, so its transmission rate is significantly insufficient compared to other WIFI frequency band channels (such as 5G, 6G, etc.).

Therefore, when device 31 supports 5G WIFI and supports the Dual Band Dual Concurrent (DBDC) function, it is obviously more appropriate to use the 5G channel as the P2P communication channel connected to device 32. Among them, when device 31 supports the DBDC function, the device can perform 2.4G communication and 5G communication at the same time. For example, when device 31 performs P2P communication with device 32 through the 5G channel, device 31 can also continue to maintain STA communication with the router based on the 2.4G channel based on the DBDC function.

Similar to the file sharing P2P communication scenario shown in FIG6 , similar unreasonable P2P communication problems also exist in multi-screen collaboration and screen projection scenarios.

For example, in conjunction with Figure 4, P2P communication in a multi-screen collaborative scenario is taken as an example. Please refer to Figure 7. Device 42 can serve as a GO to establish multi-screen collaborative communication with device 41.

In this example, before device 42 initiates multi-screen collaborative communication to device 41, device 42 as GO can establish STA communication with the router through channel A (such as channel 36). Then, combined with the description in FIG. 6, assume The device 42 may determine the channel A as the channel for P2P communication based on the following strategy for communicating with the STA. That is, the device 42 may instruct the device 41 to establish P2P communication based on the channel A.

It is understandable that in some cases, the channel used for STA communication may change. For example, after establishing P2P communication based on channel A, the STA communication channel between device 42 and the router may be switched from channel A to channel B (eg, channel 48).

In this way, for device 42, different channels will be used to perform STA communication and P2P communication, which will have a significant impact on the latency of P2P communication. In this example, multi-screen collaborative P2P communication has high requirements for latency, and when the latency is high, problems such as collaborative screen freeze will occur.

It should be noted that the Channel Switch Announcement (CSA) helps solve the above problem as shown in Figure 7. CSA includes GO CSA and GC CSA. When the device supports GO CSA, if the device is used as a GO device and the STA communication channel changes, the current P2P communication channel can be switched accordingly to follow the STA channel based on the GO CSA to ensure that the STA communication and P2P communication work on the same frequency and channel, thereby ensuring the latency of P2P communication. Correspondingly, when the device supports GC CSA, if the device is used as a GC device and the STA communication channel changes, the current P2P communication channel can be switched accordingly to follow the STA channel based on the GC CSA to ensure that the STA communication and P2P communication work on the same frequency and channel, thereby ensuring the latency of P2P communication.

In the example shown in FIG7 , because device 42 is a GO that establishes a P2P connection with device 41 as a GC, only if device 42 supports GO CSA can it instruct device 41 to switch the current P2P channel to channel B. This places higher requirements on device 42.

Then, in some cases, if device 42 only supports GC CSA and device 41 supports GO CSA, it is impossible to implement the follow-up adjustment of the P2P channel and the STA channel according to the above CSA mechanism.

As described above with reference to FIG. 6 and FIG. 7 , when devices perform P2P communication, based on existing role determination (such as the device as a GO or a GC) and channel selection, the problem of poor P2P communication quality may be caused.

In order to solve the above problems, the embodiments of the present application provide a communication method, which can flexibly determine the roles (such as GO and GC) in P2P communication according to the capabilities of the devices and the current communication needs before establishing P2P communication between devices. In some embodiments, the channel that is more conducive to the current communication can also be optimized. Thus, through accurate role determination and channel selection, the P2P communication established between devices can be more convenient for the corresponding business.

It should be noted that the technical solution provided in the embodiment of the present application can be applied to a P2P communication system between electronic devices. The electronic devices participating in the P2P communication may be two or more. In the case of multiple electronic devices, the specific implementation can refer to the solution implementation of establishing P2P communication between two electronic devices. In the following example, the communication system includes two electronic devices, such as a first electronic device and a second electronic device.

The first electronic device and/or the second electronic device may include at least one of a mobile phone, a foldable electronic device, a tablet computer, a desktop computer, a laptop computer, a handheld computer, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, a cellular phone, a personal digital assistant (PDA), an augmented reality (AR) device, a virtual reality (VR) device, an artificial intelligence (AI) device, a wearable device, a vehicle-mounted device, a smart home device, or a smart city device. The embodiments of the present application do not impose any special restrictions on the specific types of the first electronic device and the second electronic device.

As an example, the present application provides a specific hardware composition of an electronic device. The electronic device can correspond to On the first electronic device and/or the second electronic device.

In this example, the electronic device may include a processor, an external memory interface, an internal memory, a universal serial bus (USB) connector, a charging management module, a power management module, a battery, an antenna 1, an antenna 2, a mobile communication module, a wireless communication module, an audio module, a speaker, a receiver, a microphone, an earphone interface, a sensor module, a button, a motor, an indicator, a camera module, a display screen, and a subscriber identification module (SIM) card interface, etc. The sensor module may include a pressure sensor, a gyroscope sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a distance sensor, a proximity light sensor, a fingerprint sensor, a temperature sensor, a touch sensor, an ambient light sensor, a bone conduction sensor, etc.

It is to be understood that the structure illustrated in the embodiments of the present application does not constitute a specific limitation on the electronic device. In other embodiments of the present application, the electronic device may include more or fewer components than the above examples, or combine certain components, or split certain components, or arrange the components differently. The components involved in the above composition diagram may be implemented in hardware, software, or a combination of software and hardware.

In an embodiment of the present application, the first electronic device and the second electronic device can achieve one or more functions of file sharing, multi-screen collaboration and screen projection by establishing WIFI P2P communication.

In the following description, the first electronic device is referred to as the first device, and the second electronic device is referred to as the second device.

Before establishing P2P communication, as shown in Figure 8, the first device may exchange information with the second device to determine a P2P communication configuration, wherein the P2P communication configuration may include at least one of the following: a GO and a GC in P2P communication, and a channel used in P2P communication.

In the example shown in FIG. 8 , it is taken that the first device is an initiating device of P2P communication.

In the above example, the information interaction for determining the P2P communication configuration may include:

S801. A first device may send P2P request information to a second device.

The P2P request information may include at least one of the following: available channel information of the first device, the type of P2P communication to be initiated by the first device, capability information of the first device, etc.

The available channel information of the device may be used to indicate a channel that the current device can use for P2P communication.

For example, in some embodiments, when the device supports no more than two WIFI communications at the same time, if the first device has established one STA communication and one P2P communication, it cannot support more P2P communications. Then, the available channel of the first device is empty.

In other embodiments, when the device supports no more than two WIFI communications at the same time, if the first device has only established one P2P communication channel, the device can also establish another P2P communication channel. In this way, the available channels of the first device can include other channels except the occupied P2P communication channel.

As a possible implementation, when the available channels of the device are not empty, the available channel information may include the channel number of each available channel. When the device only supports 2.4G WIFI communication, the channel numbers of the available channels are all available channel numbers for 2.4G WIFI communication. When the device also supports 5G WIFI communication, the channel numbers of the available channels may include the available channel numbers for 2.4G WIFI communication and the available channel numbers for 5G WIFI communication. By analogy, when the device also supports WIFI communication in other frequency bands (such as 6G WIFI), the available channel information of the device may include all available channel numbers in 2.4G WIFI, 5G WIFI and 6G WIFI.

It should be noted that, in some other embodiments of the present application, when the first device has established STA communication with the routing device, the first device can mark the channel used for STA communication so that the second device can know that the first device has currently established STA communication and the channel used for the STA communication.

The types of devices that are going to initiate P2P communication may include various types.

Exemplarily, in some embodiments, the types of P2P communication may include: file sharing, screen projection, and multi-screen collaboration, etc.

As a possible implementation, when the P2P request information includes the type of P2P communication that the first device is going to initiate, the P2P request may carry a first identifier indicating the type of P2P communication. For example, the first identifier is identifier 1, which is used to indicate that P2P communication for file sharing is going to be initiated. The first identifier is identifier 2, which is used to indicate that P2P communication for screen projection is going to be initiated. The first identifier is identifier 3, which is used to indicate that P2P communication for multi-screen collaboration is going to be initiated.

In other embodiments, the type of P2P communication may also be different from the above classification. It is understandable that the throughput requirement of file sharing P2P communication takes precedence over the latency requirement during communication. In P2P communication processes such as screen projection and multi-screen collaboration, the amount of data to be transmitted is generally not large, but the latency requirement is higher. Therefore, in this example, the type of P2P communication may also include high-throughput communication priority and low-latency communication priority.

As a possible implementation, the P2P request may carry a first identifier indicating the type of P2P communication. For example, the first identifier is identifier 3, indicating that high-throughput communication is to be initiated first. The first identifier is identifier 4, indicating that low-latency communication is to be initiated first.

The device capability information may be used to indicate the communication capabilities that the current device can support, such as whether the device supports DBDC, whether the device supports CSA, etc.

Exemplarily, as a possible implementation, in the case where the P2P request information includes the capability information of the first device, the P2P request information may carry a second identifier in a preset identifier position to indicate whether the first device supports the above-mentioned communication capability. For example, when the second identifier is the first value, it indicates that the first device supports DBDC. When the second identifier is the second value, it indicates that the first device supports GO CSA. When the second identifier is the third value, it indicates that the first device supports both DBDC and GO CSA. When the second identifier is the fourth value, it indicates that the first device supports GC CSA. When the second identifier is the fifth value, it indicates that the first device supports both DBDC and GC CSA. When the second identifier is the sixth value, it indicates that the first device supports DBDC, GC CSA and GO CSA. When the second identifier is the seventh value, it indicates that the first device supports both GC CSA and GO CSA.

It should be noted that, in this example, the P2P request information may include the available channel information of the first device, and/or the type of P2P communication to be initiated by the first device, and/or the capability information of the first device. In other embodiments, the first device may also transmit this information to the second device in other forms. For example, the first device may score one or more pre-configured items corresponding to this information, and carry the scoring result in the P2P request information to the second device. This scheme will be illustrated later and will not be repeated here.

S802: The second device generates P2P response information according to the P2P request information and sends it to the first device.

In this example, the second device can comprehensively determine the P2P communication configuration based on the various parameters included in the P2P request information and the parameters of the second device itself. The second device can carry the P2P communication configuration in the P2P response information and send it to the first device. In combination with the above description, the P2P communication configuration can include the GO and GC in the P2P communication, and/or the channel used in the P2P communication.

Exemplarily, in some embodiments, the second device may select a channel corresponding to the current communication based on the available channel information of the first device in the P2P request information, the type of P2P communication to be initiated, and the available channels of the second device.

In some other embodiments, the second device may also determine the GO and GC in the P2P communication according to the capability information of the first device in the P2P request and the capability information of the second device.

The second device may carry the determined P2P communication configuration in the P2P response information and send it to the first device, so that the first device can establish P2P communication with the second device according to the P2P communication configuration carried in the P2P response information.

It is understandable that, as shown in the example of the solution in Figure 8 above, the first device and the second device can understand the relevant information of the opposite device before establishing P2P communication, and determine more P2P communication configurations for each other. The P2P communication configuration may correspond to the first device and the second device. Based on this solution, a device with stronger capabilities can be configured as a GO. Unlike the existing solution of using the initiating device as a GO, this solution can better utilize the device capabilities and improve the quality of P2P communication. In some embodiments, the P2P communication configuration may also reflect the characteristics of the current P2P communication (such as higher requirements for throughput, higher latency, etc.), and the P2P communication established accordingly may also be more in line with the P2P communication scenario's demands for data transmission.

The technical solution shown in FIG. 8 will be described below with reference to specific embodiments.

For example, the P2P request information includes the available channel information of the first device and the type of P2P communication to be initiated, and the P2P communication configuration includes the channel used for P2P communication. Referring to FIG9 , a schematic diagram of device interaction of a communication method provided in an embodiment of the present application is shown. As shown in FIG9 , the scheme may include:

S901. A first device determines first available channel information of the first device and a P2P communication service type.

Combined with the description of S801 in FIG8 , in this example, when the first device supports 2.4G WIFI communication, the first available channel information may include a set of 2.4G channels currently available for P2P communication. Correspondingly, when the first device also supports 5G WIFI communication, the first available channel information may include a set of 2.4G channels and 5G channels currently available for P2P communication.

In some embodiments, when the first device has established STA communication with the routing device, the channel used for STA communication can be marked in the first available channel information. For example, if the channel used for STA communication is channel 91 of the 2.4G frequency band, then channel 91 can be marked as a STA communication channel and carried in the first available channel information.

As described in S801, in this example, the P2P communication service type includes file sharing corresponding to identifier 1, screen projection corresponding to identifier 2, and multi-screen collaboration corresponding to identifier 3. Then, the first device can determine the P2P communication service type that needs to be initiated currently according to the P2P communication indication input by the user.

Exemplarily, in conjunction with the description of FIG3 , when the first device receives the operation of selecting and sharing a file input by the user, the first device may determine that the P2P communication service type is file sharing. Correspondingly, the first device may set the first identifier in the P2P request to identifier 1 .

4 . When the first device receives the multi-screen collaboration operation input by the user, the first device may determine that the P2P communication service type is multi-screen collaboration. Correspondingly, the first device may set the first identifier in the P2P request to identifier 3.

5 . When the first device receives the screen projection instruction input by the user, the first device can determine that the P2P communication service type is screen projection. Correspondingly, the first device can set the first identifier in the P2P request to identifier 2.

S902: The first device sends P2P request information to the second device.

Exemplarily, the first device may carry the first available channel information and the P2P communication service type in the P2P request information and send the information to the second device.

S903: The second device determines second available channel information of the second device.

Combined with the description in S901, in this example, the second device can also determine the currently available second available The specific implementation manner of determining the channel information is similar to the manner in which the first device determines the first available channel information, and will not be described in detail herein.

For example, in the case where the channels currently available for P2P communication of the second device include channels in the 2.4G frequency band, the second available channel information may include a set of 4G WIFI available channels of the second device. In the case where the channels currently available for P2P communication of the second device include channels in the 5G frequency band, the second available channel information may include a set of 5G WIFI available channels of the second device. In the case where the channels currently available for P2P communication of the second device include channels in the 2.4G frequency band and the 5G frequency band, the second available channel information may include a set of 2.4G WIFI available channels of the second device, and a set of 5G WIFI available channels of the second device.

It should be noted that, in the embodiment of the present application, the execution of S903 and the execution of S901-S902 can be performed simultaneously, or can be performed on two devices in no particular order. In some embodiments, the execution of S903 can be performed before the first device executes S902, or the execution of S903 can be performed before the second device receives the P2P request information. As a result, the second device can start executing the following S904 after receiving the P2P request information, without waiting for the collection of the second available channel information of the second device, thereby improving the operating efficiency of the entire solution.

S904: The second device selects a P2P communication channel according to the type of P2P communication, the first available channel information, and the second available channel information.

Exemplarily, the second device may determine the channel that the first device and the second device can currently use for P2P communication based on the first available channel information and the second available channel information. For example, the channel that the first device and the second device can currently use for P2P communication may be the intersection of the multiple channel sets indicated by the first available channel information and the multiple channel sets indicated by the second available channel information.

In some embodiments, the second device may further filter channels matching the current communication service type from channels included in the intersection of the first available channel information and the second available channel information according to the type of P2P communication.

For example, when the second device determines that the first identifier in the P2P request is set to identifier 1, it means that the P2P communication is file sharing, which corresponds to a higher requirement for the throughput rate during the communication process. Therefore, the second device can select a channel that can provide a higher throughput rate from the channels included in the intersection of the first available channel information and the second available channel information. For example, a channel with a larger bandwidth, such as a channel in a 5G or higher frequency band.

For another example, when the second device determines that the first identifier in the P2P request is set to identifier 3 or identifier 2, it means that the P2P communication has a high requirement for the delay during the communication process. Therefore, the second device can select a channel that can provide a lower delay from the channels included in the intersection of the first available channel information and the second available channel information.

In some implementations, when the second device determines that multiple channels can be used as P2P communication channels, a channel can be randomly selected from the multiple channels as the P2P communication channel.

Thus, the second device can determine the channel for P2P communication based on the working conditions of the first device and the second device and the related information of the P2P communication to be initiated. For example, the channel determined for P2P communication can be the first channel.

S905. The second device sends P2P response information to the first device.

Exemplarily, the second device may carry the channel information determined as the P2P communication channel in the P2P response information and send it to the first device. For example, the second device may carry the channel number of the first channel in the P2P response information and send it to the first device.

Thus, the first device can cooperate with the second device according to the P2P response information to establish P2P communication with the second device on the first channel.

By implementing the solution shown in Figure 9, the second device can accurately and reasonably determine the channel used for P2P communication. As a specific implementation, the implementation effect of the solution is illustrated below in conjunction with Figures 10 and 11.

Please refer to Figure 10, taking the example that the channels that the first device can use for P2P communication include channels in the 2.4G frequency band and channels in the 5G frequency band, and the channels that the second device can use for P2P communication include channels in the 2.4G frequency band and channels in the 5G frequency band.

As shown in FIG10, through the scheme shown in FIG9, the second device can select the first channel from the intersection of the 5G WIFI available channel set of the first device and the 5G WIFI available channel set of the second device when it needs to initiate P2P communication for file sharing. Thus, the first channel can be a 5G channel that can be used by both the first device and the second device for P2P communication, which can provide a higher throughput rate for fast file data transmission compared to the 2.4G channel.

As shown in the example of Figure 10, the intersection of the 2.4G WIFI available channel sets of the first device and the second device may not be empty. Then, when both the intersection of the 2.4G WIFI available channels and the intersection of the 5G WIFI available channels are not empty, the electronic device can flexibly select the 2.4G WIFI channel and the 5G WIFI available channel as the channel for P2P communication. For example, taking the file sharing scenario shown in Figure 10 as an example, the electronic device can select the intersection of the 5G WIFI available channels as the channel for P2P communication. In other embodiments, if the intersection of the 5G WIFI available channels is empty, or the channels in the intersection of the 5G WIFI available channels are not suitable as the P2P communication channels in the current scenario, then the electronic device can also select the channels in the intersection of the 2.4G WIFI available channels as the P2P communication channels.

Please refer to Figure 11, taking the example that the channels that the first device can use for P2P communication include channels in the 2.4G frequency band and channels in the 5G frequency band, and the channels that the second device can use for P2P communication include channels in the 2.4G frequency band and channels in the 5G frequency band. In this example, the first device can establish 2.4G STA communication with the routing device, and the second device can also establish 2.4G STA communication with the routing device.

As shown in Figure 11, through the solution shown in Figure 9, when the second device needs to initiate P2P communication for screen projection, it can select a suitable channel from the intersection of the available channel set of the first device and the available channel set of the second device to establish a P2P communication connection.

In the example shown in Figure 11, the intersection of the available channels of the first device and the second device includes the 2.4G WIFI channel and the 5G WIFI channel. Then the second device can select the 5G WIFI channel available to both the first device and the second device to establish a P2P communication connection, thereby supporting the screen projection function. This avoids the jamming caused by using other channels (such as the 2.4G WIFI channel).

It should be noted that, in the example of Figure 11, the first device and the second device can establish 2.4G STA communication with the routing device. Then, when both devices support DBDC, the two devices establish P2P communication in the 5G frequency band respectively on the basis of the 2.4G STA communication. In the case where at least one of the two devices does not support DBDC, a new 5G P2P communication can be established by disconnecting the 2.4G STA communication of the corresponding device. For example, take the example that the first device does not support DBDC. The first device can prompt the user to disconnect the current 2.4G STA communication connection with the router in order to establish P2P communication based on the 5G frequency band with the second device. As a possible implementation, after establishing P2P communication in the 5G frequency band, the first device can also establish a STA communication with the routing device that is in the same frequency band and channel as the P2P communication. The above Figure 11 provides an exemplary illustration of P2P channel selection in screen projection or multi-screen collaboration scenarios. In other embodiments of the present application, when the first device supports GO CSA and the second device does not support GO CSA, the first device can disconnect the 2.4G STA communication with the router. In the case of CSA, the first device can be selected as the GO device. In the case of the first device supporting GC CSA and the second device not supporting CSA, the first device or the second device can be flexibly selected as the GO device according to the actual situation. The following will explain the selection mechanism of the GO device with specific examples.

It should be noted that in the above-mentioned scheme descriptions of Figures 9 to 11, the initiating device (first device) can send relevant information data to the opposite device (second device) so that the opposite device can reasonably select a channel for P2P communication based on the overall situation. In some embodiments, the settings for GO and GC can be similar to the above description of using the initiating device (first device) as the GO and the opposite device (second device) as the GC to establish P2P communication. In other embodiments, the second device can also reasonably determine the GO and GC in P2P communication based on the device capabilities.

As an example, please refer to FIG. 12, which is a schematic diagram of a device interaction process of another communication method provided in an embodiment of the present application. In this example, the first device is still taken as an initiating device. Combined with the description of FIG. 8 and FIG. 9, in this example, the P2P request information may include the first capability information of the first device, and the P2P communication configuration includes the selection of the GO and GC corresponding devices in the P2P communication. As shown in FIG. 12, the scheme may include:

S1201. A first device determines first capability information of the first device.

S1202. The first device sends P2P request information to the second device.

Exemplarily, the first capability information may be used to indicate the P2P communication capability of the first device.

Combined with the description in S801, the device capability information can be used to indicate the communication capabilities that the current device can support, such as whether the device supports DBDC, whether the device supports GO CSA, whether the device supports GC CSA, etc.

As a possible implementation, the first device may indicate the first capability information by setting the second identifier in the P2P request. For example, when the second identifier is the first value, it indicates that the first device supports DBDC. When the second identifier is the second value, it indicates that the first device supports GO CSA. When the second identifier is the third value, it indicates that the first device supports both DBDC and GO CSA. When the second identifier is the fourth value, it indicates that the first device supports GC CSA. When the second identifier is the fifth value, it indicates that the first device supports both DBDC and GC CSA. When the second identifier is the sixth value, it indicates that the first device supports DBDC, GC CSA, and GO CSA. When the second identifier is the seventh value, it indicates that the first device supports both GC CSA and GO CSA.

S1203: The second device determines second capability information of the second device.

Similar to the operation of the first device, the second device may also determine the second capability information corresponding to the second device, thereby enabling the second device to determine whether DBDC and/or CSA is currently supported.

In different implementations, the execution order of S1203 and S1201-S1202 may not be limited. In some embodiments, the second device may execute S1203 before receiving the P2P request information, so that after receiving the first capability information carried in the P2P request information, the second device can execute the following S1204 to achieve rapid advancement of the solution.

S1204: The second device determines a device to serve as a GO according to the first capability information and the second capability information.

Exemplarily, in some embodiments, the second device may select a device with stronger capability as the GO according to the capability information of the second device and the capability information of the first device. In conjunction with the example of FIG13 , in the selection process of the GO device by the second device, the device supporting both DBDC and CSA has a higher priority as the GO device.

As a possible implementation, if one device supports one or neither of DBDC and CSA, and another device supports both DBDC and CSA, then the device supporting both DBDC and CSA has a stronger capability. Can be used as a GO. If one device supports DBDC or CSA and the other device does not support DBDC and CSA, the device that supports DBDC or CSA has a stronger capability and can be used as a GO.

In other embodiments, the capabilities of the first device and the second device may be the same or similar.

For example, one device supports DBDC and the other device supports CSA. Or both devices support DBDC or CSA. Then, the second device can determine the device as GO in combination with other communication conditions (such as whether STA communication is established).

For example, if the second device has established 5G STA communication and both devices support GO CSA, the second device can determine that the second device is the GO device. This allows the second device to control P2P communication to follow the switching of STA channels when STA communication switches to other 5G channels, thus achieving co-frequency and co-channel communication in the 5G frequency band.

S1205. The second device sends P2P response information to the first device.

In combination with the description of S1204, after determining the device to be the GO, the second device may carry the device information (such as the device identification, etc.) of the device in the P2P response information and send it to the first device.

In this way, in the P2P connection established according to the P2P response information, the GO device can be a device with stronger capabilities, thereby ensuring high quality of the subsequent P2P communication process.

As an example, during the execution of the solution shown in FIG. 12, if the first device supports DBDC and the second device does not support DBDC, then the first device can be used as a GO device. On the contrary, if the first device does not support DBDC and the second device supports DBDC, then the second device can be used as a GO device. If both devices do not support DBDC, the first device supports GO CSA and the second device does not support GO CSA, then the first device can be used as a GO device. On the contrary, if the first device does not support GO CSA and the second device supports GO CSA, then the first device can be used as a GO device.

In other implementations, the solution shown in FIG12 can also be implemented in conjunction with the currently connected STA communication. For example, when the STA channel of the GO device switches, the GO device can control the P2P channel to switch with the STA channel based on the GO CSA capability to maintain the same frequency and channel operation. For another example, when the STA channel of the GO device is a 2.4G channel, the GO device can control the P2P channel to work in a 5G channel based on the DBDC capability, thereby ensuring the throughput of P2P communication through the 5G channel.

It is understandable that, in the example of Figure 12, the second device may select a device with stronger capabilities as the GO device. Then, in different implementations, channel selection in P2P communication may be flexible.

For example, in some embodiments, the channel selection in P2P communication may follow the STA communication channel. In other embodiments, the channel selection in P2P communication may also be determined according to a preset channel.

In other embodiments, the solution shown in FIG. 12 can also be combined with the solution shown in FIG. 9 , so that before initiating P2P communication, the channel in P2P communication and the device as GO can be more reasonably selected, thereby ensuring that subsequent P2P communication can be performed more efficiently.

As an example, in combination with Figures 9 and 12, please refer to Figure 14, which is a schematic diagram of device interaction of another communication method provided in an embodiment of the present application.

As shown in FIG. 14 , the solution may include:

S1401. A first device determines first available channel information of the first device, a P2P communication service type, and first capability information of the first device.

S1402: The first device sends P2P request information to the second device, wherein the P2P request information includes first available channel information, a P2P communication service type, and first capability information of the first device.

S1403: The second device determines a first available channel of the second device and second capability information of the second device.

S1404: The second device determines a P2P communication channel and a device serving as a GO according to the P2P request information and the second device information.

S1405: The second device sends P2P response information to the first device, wherein the P2P response information includes a P2P communication configuration, and the P2P communication configuration includes a channel in P2P communication and an indication of a device serving as a GO.

It can be understood that the execution of the above S1401-S1405 can be implemented with reference to S901-S905 shown in Figure 9 and S1201-S1205 shown in Figure 12. The specific implementation measures can be referenced to each other and will not be repeated here.

In combination with the technical solution shown in FIG14 , before starting P2P communication, the second device can more reasonably select a channel for P2P communication and a device to be used as a GO during P2P communication, which can make P2P communication more reasonable and significantly improve communication efficiency.

The above-mentioned Figures 9 to 14 respectively provide several specific examples of implementing the communication logic shown in Figure 8. In these examples, the second device can comprehensively determine the P2P communication configuration from the perspective of logical judgment according to specific available channel information, communication service type and/or device capability information.

In other embodiments of the present application, the processing logic shown in FIG8 can also be implemented through a scoring mechanism of pre-configured items, wherein the pre-configured items may include one or more scoring dimensions for each available channel and the current device.

For example, the pre-configuration item may include at least one of the following: the channel is a 4G/5G/6G WIFI channel, whether the device supports 5G, whether the device supports DBDC, whether the channel is a dynamic frequency selection (DFS) channel, whether the device supports CSA, the channel switching capability of the device, the P2P communication to be established is the first P2P communication or the second P2P communication of the device, the current connection status and channel of STA, P2P0 and/or P2P1, the current device supports SISO or MIMO, whether the current device supports P2P communication based on 11ax, whether the application initiating P2P communication specifies the GO device, the throughput requirements of the corresponding service type of P2P communication, the busyness of the current channel, and whether selecting the current channel will affect the existing services.

Among them, P2P0 is used to indicate the first P2P communication of the current device, and P2P1 is used to indicate the second P2P communication of the current device. The busyness of the current channel can be identified by detecting the conflict/packet collision rate of the current channel. In some embodiments, the "whether the device supports CSA" in the above pre-configuration item can also be specifically refined into "whether the device supports GO CSA" and "whether the device supports GC CSA".

It should be noted that, in some embodiments of the present application, the selection of pre-configuration items may be different for different P2P communication service types.

For example, take a scenario where the P2P communication service type is screen projection and requires low latency.

Pre-configuration items may include: whether the channel is a 4G/5G/6G WIFI channel; whether the channel is a dynamic frequency selection (DFS) channel; whether the device supports CSA.

It is understandable that for the channel selection in this scenario, the DFS signal needs to communicate the radar signal. Therefore, in some embodiments, in the scenario where low latency is required, such as screen projection, a non-DFS channel is preferably used as the P2P communication channel.

Take the scenario where the P2P communication service type is file transfer and requires high throughput as an example.

The pre-configuration items may include: whether the channel is a 4G/5G/6G WIFI channel; whether the device supports 5G; whether the channel is a dynamic frequency selection (DFS) channel. Optionally, the pre-configuration items in this scenario may also include the connection status and channel of the current STA, P2P0 and/or P2P1.

It can be understood that, similar to the example of the screen projection scenario, in this file transfer scenario, non-DFS channels are preferred. It is a P2P communication channel.

It should be noted that, in some embodiments, the preconfiguration items applicable to the above different scenarios are not limited to the ones in the above examples. The preconfiguration items used in each scenario can be configured with different weights to enhance the importance of the key preconfiguration items in the corresponding scenario (such as the preconfiguration items corresponding to each scenario in the above examples) in the final channel/GO selection.

Based on this, the first device and the second device can score each of the channels that can be used for P2P communication according to the pre-configured items, thereby obtaining the scoring results corresponding to each channel on each device. Since the pre-configured items include both the judgment conditions for the current channel (such as whether it is a 4G/5G/6G WIFI channel, etc.) and the judgment conditions for the current device (such as whether the device supports DBDC, etc.), the scoring results based on the channel granularity can reflect the comprehensive capabilities of the channel and the device at the same time.

Exemplarily, it is taken as an example that the channels that can be used for P2P communication include channel 1 to channel n.

The first device may score each of channels 1 to n according to preset configuration items. For example, the preset configuration items include whether the channel is a 4G/5G/6G WIFI channel, the current STA, P2P0 and/or P2P1 connection status and channel, and whether the device supports DBDC.

The following Table 1 shows a schematic diagram of a pre-configuration item scoring scheme for a 4G/5G/6G WIFI channel.

Table 1

As shown in Table 1, take channel 1 as an example. When channel 1 is a 6G WIFI channel, the score for this item is 20 points. When channel 1 is a 5G WIFI channel, the score for this item is 10 points. When channel 1 is a 4G WIFI channel, the score for this item is 5 points. Other channels are similar. It can be seen that in the example in Table 1, 6G with the maximum communication rate has the highest score, 5G has a lower score than 6G, and 4G has the lowest score. In this way, channels with higher communication protocols can be selected for P2P communication, thereby obtaining a better communication experience.

It should be noted that in some embodiments of the present application, the 5G classification can be further divided into two parts. For example, the scores of all channels except channel 165 in the 5G WIFI channel are 10, and the score of channel 165 in the 5G WIFI channel can be 7. In this way, the score of channel 165 with a lower bandwidth in the 5G WIFI channel is slightly lower than that of other channels, so that when there are multiple 5G WIFI channels to choose from, a channel with a larger bandwidth can be selected to establish P2P communication.

Therefore, the first device can score each channel in the current pre-configured items (such as the channel is a 4G/5G/6G WIFI channel) based on the example in Table 1.

Table 2 below shows a schematic diagram of a scoring scheme for pre-configuration items of the current STA, P2P0 and/or P2P1 connection status and whether the device supports DBDC.

Table 2

As shown in Table 2, take the scoring of channel 1 by the first device as an example. When the first device currently has no STA communication with the routing device or P2P connection with other devices, the score of the current pre-configuration item is 20. When the first device currently has a connection with the same frequency and channel as channel 1 (such as a STA communication connection), the score is 20. When the first device currently has a connection with the same frequency and channel as channel 1 (such as a STA communication connection), the score is 5. When the first device currently has a connection with a different frequency and channel than channel 1 (such as a STA communication connection), but the first device does not support DBDC, the score is 5. When the first device supports DBDC, the score can be 10 regardless of whether there is an established communication connection.

The scoring examples for other channels are similar to that for channel 1.

Therefore, the first device can score each channel in the current pre-configuration items (such as the current STA, P2P0 and/or P2P1 connection status, whether the device supports DBDC) based on the example in Table 2.

It should be noted that the above Tables 1 and 2 are only examples. From the perspective of direct scoring, two examples of scoring mechanisms for pre-configuration items are shown, and they do not constitute a limitation on the scoring rules for pre-configuration items in this application.

Exemplarily, in other embodiments, each preconfiguration item may also be provided with a corresponding weight, which is used to adjust the proportion of each preconfiguration item in the overall score in different scenarios. For example, the weight of the preconfiguration item "the channel is a 4G/5G/6G WIFI channel" may be set to 31. Then, the final scoring result of the preconfiguration item may be obtained by multiplying the score shown in Table 1 by the weight (31). For another example, the weight of the preconfiguration item "the current connection status of STA, P2P0 and/or P2P1, whether the device supports DBDC" may be set to 8. Then, the final scoring result of the preconfiguration item may be obtained by multiplying the score shown in Table 2 by the weight (8).

In addition, in some other embodiments, the first device may make special adjustments to the scores of some special pre-configuration items, thereby optimizing the effect of the scoring result of the current channel.

For example, if the preconfigured item includes "whether the application initiating P2P communication specifies a GO device", and the application indicates that the first device is a GO device, the first device may adjust the weight and/or score of the item, for example, adjusting the weight to 10,000.

For another example, the weight and/or score of each pre-configuration item is adaptively adjusted according to the specific product specifications of the current device.

By analogy, the first device may obtain the scoring results of each pre-configuration item for channel 1. Then, the scoring result of the first device for the channel 1 may be the sum of the scoring results of each pre-configuration item.

For other channels, the first device may perform similar scoring processing to obtain scoring results corresponding to other channels (such as channel 2 to channel n).

It is understandable that the second device may also score each channel in accordance with the above mechanism for each of channels 1 to n, thereby obtaining n scoring results corresponding to the n channels.

In this example, the first device may carry the scoring result of each of the n channels in the P2P request information and send it to the second device, so that the second device can know the scoring result of each available channel on the first device and the second device at the same time.

Exemplarily, as shown in FIG15 , the second device can learn through the P2P request information that the first device scores channel 1 as score a1, the first device scores channel 2 as score a2, ..., and the first device scores channel n as score an. In addition, the second device can also score channels 1-channel n by itself, and obtain the second device's score for channel 1 as score b1, the second device's score for channel 2 as score b2, ..., and the second device's score for channel n as score bn.

Then, the second device can determine the channel for initiating P2P communication and the device serving as the GO according to the scoring results of each device on each channel.

Exemplarily, the second device may add the scores of the two devices in each channel to obtain the scoring result of the two-end devices in the channel. In some embodiments, the second device may use the channel with the highest score as the channel for P2P communication.

As an example, as shown in FIG16 , the second device can add score a1 to score b1 to obtain the score of the two-end device of channel 1: score c1. The second device can add score a2 to score b2 to obtain the score of the two-end device of channel 2: score c2. The second device can add score an to score bn to obtain the score of the two-end device of channel n: score cn. In this way, the second device can compare score c1-score cn to determine the item with the largest score of the two-end device, thereby determining the channel for P2P communication. For example, among score c1-score cn, score c2 is the maximum value. Then, channel 2 corresponding to score c2 can be determined as the channel for P2P communication.

In other embodiments, when there are two or more channels with the same and highest scores given by the dual-end devices, the second device may select any one of the channels as the channel for P2P communication.

In this example, after selecting a channel for P2P communication, the second device may compare the scores of the two devices on the channel, and use the device with a higher score as a GO device and the corresponding device with a lower score as a GC device.

For example, continue with the example shown in Figure 16. After determining channel 2 as a channel for P2P communication, the second device can compare the score of channel 2 given by the first device (such as score a2) and the score of channel 2 given by the second device (such as score b2). Thus, the device with a higher score for channel 2 is used as the GO, and correspondingly, the device with a lower score for channel 2 is used as the GC. For example, take the example where score b2 is greater than score a2. Then the second device can use the second device as the GO and the first device as the GO.

In this way, through the scoring mechanism, the second device can quickly and simply calculate and reasonably determine the P2P communication channel and the device as GO. Then, the second device can send the P2P communication channel and the device as GO to the first device, so that the first device can cooperate with the second device to establish a P2P communication connection.

It should be noted that in the above example, the mechanism of self-scoring of the first device and the second device is illustrated. In other embodiments of the present application, the scoring operation can be performed on the same device. For example, the first device, which is an initiating device, can send the capability information of the first device (such as whether it supports 5G/6G, whether it supports DBDC, whether it supports CSA GO/CSA GC, etc.) to the second device, so that the second device can obtain the scoring results of the first device corresponding to each channel according to the scoring mechanism preset in the second device. In addition, the second device can also obtain the scoring results of the second device corresponding to each channel according to the scoring mechanism in the second device.

Based on this mechanism, the first device does not need to perform scoring, so the first device does not need to set the scoring mechanism shown in Figure 1 or Table 2. The implementation of scoring by the second device can also avoid the problem of low scoring confidence and inability to compare with each other due to different scoring mechanisms (and/or pre-configured items) in each device.

As an example, please refer to FIG. 17, which is a flow chart of another device-to-device interaction method provided in an embodiment of the present application. Through the scheme shown in FIG. 17, the scoring mechanism described in the above-mentioned FIG. 15-FIG. 16 can be implemented. Based on the scoring mechanism, the P2P communication channel corresponding to the P2P communication to be initiated and the device serving as the GO are determined. Here, the first device is taken as the initiating device as an example.

In the example shown in FIG. 17 , the second device may be used to score each device (such as the first device and the second device). The scoring operation may be performed on a channel-by-channel basis on each device based on pre-configured items set in the second device and a preset scoring mechanism. The preset scoring mechanism may indicate the score size and/or weight size of the current device and channel corresponding to different pre-configured items.

As shown in FIG. 17 , the solution may include:

S1701. The first device and the second device determine an available P2P channel set.

The available P2P channel set may be a set of channels that can be used for P2P communication. In combination with the description in S801 above, the first device and the second device may respectively determine channels that can be used for P2P communication. The intersection of the available P2P channels of the first device and the second device may constitute the set of channels that can be used for P2P communication.

S1702: The first device sends P2P request information to the second device. The P2P request information may include first capability information of the first device.

Exemplarily, in combination with the foregoing description, the first capability information can be used to indicate whether the first device supports DBDC, and/or whether it supports GO CSA, and/or whether it supports GC CSA.

S1703: The second device obtains a first scoring result corresponding to the first device according to the P2P request information.

S1704: The second device obtains a second scoring result corresponding to the second device according to the second capability information of the second device.

In combination with the above description, the scoring operation may be performed for each device separately.

For example, taking scoring of the first device as an example, the first scoring result may include: a scoring result obtained by scoring each channel in the available P2P channel combination according to the first capability information and according to a preset scoring mechanism and pre-configured items.

Similarly, taking scoring of the second device as an example, the second scoring result may include: a result obtained by scoring the channels in each available P2P channel combination according to the second capability information and according to a preset scoring mechanism and pre-configured items.

S1705. The second device determines a P2P communication configuration according to the first scoring result and the second scoring result.

Exemplarily, the P2P communication configuration may include a channel for performing P2P communication, and a device serving as a GO.

In combination with the description of FIG. 15 and FIG. 16, the second device can determine the scores of the two-end devices corresponding to each channel according to the scores of each device on each channel. According to the scores of the two-end devices, the channel with the largest score is determined as the channel for P2P communication. Based on the P2P communication channel, the device with a higher score can be used as the GO device.

S1706. The second device sends P2P response information to the first device.

In this example, the P2P response information may carry the P2P communication configuration determined in S1705, such as the channel number for P2P communication and the device identifier as the GO.

In this way, combined with the scoring mechanism, the P2P communication configuration can be quickly and accurately determined. It can be understood that in the scoring mechanism, the objects to be processed by the second device are all size judgments based on numbers, which is simpler than the logical judgment process in the above description and has less computational overhead for the second device.

It should be noted that in the technical solutions shown in Figures 15 to 17, the pre-configuration items and scoring mechanisms involved may be preset in the second device, so that the technical solution shown in Figure 17 can be executed before the P2P communication needs to be established. In other embodiments, the pre-configuration items may also be issued by a cloud server that is simultaneously connected to the second device.

It should be understood that, different from the implementation shown in FIG. 17 , in other embodiments, the scoring operation for the first device may also be performed in the first device. For example, the same pre-configuration items and scoring mechanism may be preset in the first device and the second device, so that the first device can perform a scoring operation according to the first capability information to obtain a first scoring result, and carry the first scoring result in the P2P request information to send to the second device for subsequent processing.

In addition, in some embodiments, the preconfiguration items may include M items. Before each establishment of P2P communication, according to the type of P2P communication service to be established and the network environment in which the current device is located, the first device and the second device may negotiate to select at least part of the M preconfiguration items as the preconfiguration items for this scoring. In addition, the scores and/or weights corresponding to the preconfiguration items may also be flexibly adjusted by the device according to actual conditions. The embodiments of the present application are not limited to this.

After the P2P communication link is established based on the above solution, the electronic device can also optimize and adjust the P2P communication according to the changes in the device capabilities and the surrounding communication environment.

Exemplarily, in some embodiments, when the STA channel of the first device and/or the second device changes, if both the first device and the second device support CSA, the GO device may trigger CSA to switch the P2P channel to the STA same channel.

In other embodiments, after P2P communication is established, if the GC device has the same frequency and different channels or the GC device does not support DBDC, the P2P STA roaming can be triggered. Thus, the STA on the GC device roams/switches to the saved channel with the same channel as the P2P communication for STA communication.

The above mainly introduces the solution provided by the embodiment of the present application from the perspective of electronic equipment. In order to realize the above functions, it includes hardware structures and/or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

The embodiment of the present application can divide the functional modules of the devices involved therein according to the above method examples. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation.

Exemplarily, FIG18 shows a schematic diagram of the composition of an electronic device 1800. As shown in FIG18, the electronic device 1800 may include: a processor 1801 and a memory 1802. The memory 1802 is used to store computer-executable instructions. Exemplarily, in some embodiments, when the processor 1801 executes the instructions stored in the memory 1802, the electronic device 1800 may execute the technical solution corresponding to the first device or the second device in the above-mentioned embodiment.

It should be noted that all relevant contents of each step involved in the above method embodiment can be referred to in the corresponding function. The functional description of the energy module will not be repeated here.

Figure 19 shows a schematic diagram of the composition of a chip system 1900. The chip system 1900 may include: a processor 1901 and a communication interface 1902, which are used to support related devices (such as the first device or the second device) to implement the functions involved in the above embodiments. In one example, the chip system also includes a memory for storing program instructions and data necessary for the terminal. The chip system may be composed of chips, or may include chips and other discrete devices. It should be noted that in some implementations of the present application, the communication interface 1902 may also be referred to as an interface circuit.

It should be noted that all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module and will not be repeated here.

The functions or actions or operations or steps in the above embodiments can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can access or may include one or more servers, data centers and other data storage devices that can be integrated with the medium. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.

Although the present application has been described in conjunction with specific features and embodiments thereof, it is obvious that various modifications and combinations may be made thereto without departing from the spirit and scope of the present application. Accordingly, this specification and the drawings are merely exemplary illustrations of the present application as defined by the appended claims, and are deemed to have covered any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims (24)

1. A communication method, characterized in that the method is applied to a second electronic device in a communication system, the communication system also includes a first electronic device, and the method is used to establish a first point-to-point P2P communication between the first electronic device and the second electronic device; the method includes:

   The second electronic device receives P2P request information from the first electronic device, the P2P request information includes first device information, the first device information includes at least one of the following: a first available channel set, a communication service type of the first P2P communication, and first capability information of the first electronic device;

   The first available channel set is used to indicate at least one channel, and the at least one channel indicated by the first available channel set can be used for the first electronic device to perform P2P communication;

   The second electronic device determines a P2P communication configuration at least according to the P2P request information; the P2P communication configuration is used to establish the first P2P communication;

   The second electronic device sends P2P response information to the first electronic device, and the P2P response information includes the P2P communication configuration.
2. The method according to claim 1, characterized in that

   The P2P communication configuration is used to indicate a channel used for performing the first P2P communication and/or a device serving as a manager GO or a managed GC in the first P2P communication.
3. The method according to claim 1 or 2, characterized in that

   The communication service types of the first P2P communication include: file sharing, screen projection, or multi-screen collaboration.
4. The method according to claim 1 or 2, characterized in that

   The communication service type of the first P2P communication includes: high-throughput communication priority, or low-latency communication priority.
5. The method according to claim 3 or 4, characterized in that

   The P2P request information carries a first identifier; when the value of the first identifier is different, the communication service type corresponding to the first P2P communication is different.
6. The method according to any one of claims 1 to 5, characterized in that

   The first capability information of the first electronic device includes at least one of the following:

   Whether the first electronic device supports dual-band dual-transmission DBDC, whether the first electronic device supports GO channel switching announcement GO CSA, or whether the first electronic device supports GC CSA.
7. The method according to claim 6, characterized in that

   The P2P request information carries a second identifier; when the second identifier is different, it corresponds to a difference in the first capability information.
8. The method according to any one of claims 1 to 7, characterized in that the P2P configuration information includes a first available channel set and a communication service type of the first P2P communication; the P2P communication configuration includes a channel for performing the first P2P communication;

   Before the second electronic device determines the P2P communication configuration according to the P2P request information, the method further includes:

   The second electronic device determines second device information, where the second device information includes a second available channel set of the second electronic device,

   The second electronic device determines the P2P communication configuration according to the P2P request information, including:

   The second electronic device transmits the first available channel set, the second available channel set, and the The communication service type of the first P2P communication determines a channel used for performing the first P2P communication.
9. The method according to claim 8, characterized in that the second electronic device determines the channel for performing the first P2P communication according to the first available channel set, the second available channel set, and the communication service type of the first P2P communication, comprising:

   The second electronic device determines a first intersection of the first available channel set and the second available channel set, wherein the first intersection includes at least one channel;

   The second electronic device selects a channel for performing the first P2P communication from the first intersection according to the communication service type of the first P2P communication.
10. The method according to any one of claims 1 to 9, characterized in that the P2P request information includes first capability information of the first electronic device; the P2P communication configuration includes a device as a manager GO or a managed GC in the first P2P communication;

    Before the second electronic device determines the P2P communication configuration according to the P2P request information, the method further includes:

    The second electronic device determines second device information, where the second device information includes second capability information of the second electronic device;

    The second electronic device determines the P2P communication configuration according to the P2P request information, including:

    The second electronic device determines, according to the first capability information and the second capability information, a device serving as a GO or a device serving as a GC in the first P2P communication.
11. The method according to claim 10 is characterized in that the second electronic device determines a device serving as a GO or a device serving as a GC in the first P2P communication according to the first capability information and the second capability information, comprising:

    When the first capability information indicates that the first electronic device supports DBDC and the second capability information indicates that the second electronic device does not support DBDC, the second electronic device determines the first electronic device as a GO device for the first P2P communication;

    When the first capability information indicates that the first electronic device does not support DBDC and the second capability information indicates that the second electronic device supports DBDC, the second electronic device determines the second electronic device as a GO device for the first P2P communication;

    When the first capability information indicates that the first electronic device does not support DBDC, but supports GO CSA; and the second capability information indicates that the second electronic device does not support DBDC, and the second electronic device does not support GO CSA, the second electronic device determines the first electronic device as the GO device of the first P2P communication;

    When the first capability information indicates that the first electronic device does not support DBDC and the first electronic device does not support GO CSA; and the second capability information indicates that the second electronic device does not support DBDC but the second electronic device supports GO CSA, the second electronic device determines that the second electronic device serves as the GO device of the first P2P communication.
12. The method according to any one of claims 1 to 11, characterized in that before the second electronic device receives the P2P request information from the first electronic device, the first electronic device establishes a first communication connection with a routing device;

    The first device information also includes: connection information of the first communication connection.
13. The method according to claim 12 is characterized in that the connection information of the first communication connection indicates that the first communication connection is established on a first STA channel of 5G or 6G WIFI;

    The second electronic device determines the P2P communication configuration according to the P2P request information, including:

    The second electronic device determines that a channel for performing the first P2P communication is the first STA channel.
14. The method according to any one of claims 1 to 11 is characterized in that before the second electronic device receives the P2P request information, the second electronic device establishes a second communication connection with the routing device; the second communication connection is established on a second STA channel of 5G or 6G WIFI;

    The second electronic device determines the P2P communication configuration according to the P2P request information, including:

    The second electronic device determines that a channel for performing the first P2P communication is the second STA channel.
15. The method according to any one of claims 1 to 14, characterized in that a scoring rule is preset in the second electronic device, and the scoring rule includes M pre-configured items;

    The second electronic device scores the first electronic device according to the first device information and the scoring rule, and obtains a scoring result corresponding to the first electronic device;

    The second electronic device scores the second electronic device according to the second device information, and obtains a scoring result corresponding to the second electronic device; the second device information includes at least one of the following: a second available channel set, and second capability information of the second electronic device; wherein the second available channel set is used to indicate at least one channel, and the at least one channel indicated by the second available channel set can be used by the second electronic device for P2P communication;

    The second electronic device determines the P2P communication configuration according to the scoring result corresponding to the first electronic device and the scoring result corresponding to the second electronic device.
16. The method according to claim 15, characterized in that the first device information includes a first available channel set, and the second device information includes a second available channel set;

    Before the second electronic device scores the first electronic device or the second electronic device, the method further includes:

    The second electronic device determines a first intersection of the first available channel set and the second available channel set, where the first intersection includes N channels.
17. The method according to claim 16 is characterized in that the second electronic device scores the first electronic device according to the first device information and the scoring rule, and obtains the scoring result corresponding to the first electronic device, comprising:

    For each channel in the first intersection, the second electronic device scores the first electronic device according to the scoring rule and the first device information to obtain M scoring results corresponding to each pre-configuration item in the M pre-configuration items; and determines a first scoring result corresponding to the channel according to the M scoring results;

    The scoring result corresponding to the first electronic device includes N first scoring results corresponding to N channels.
18. The method according to claim 17 is characterized in that determining the first scoring result corresponding to the channel based on the M scoring results includes: taking the sum of the M scoring results as the first scoring result corresponding to the channel.
19. The method according to claim 17 or 18 is characterized in that the second electronic device scores the second electronic device according to the second device information and the scoring rule, and obtaining the scoring result corresponding to the second electronic device comprises:

    For each channel in the first intersection, the second electronic device scores the second electronic device according to the scoring rule and the second device information to obtain M scoring results corresponding to each pre-configuration item in the M pre-configuration items; and determines a second scoring result corresponding to the channel according to the M scoring results;

    The scoring result corresponding to the second electronic device includes N second scoring results corresponding to N channels.
20. The method according to claim 19, wherein the second electronic device determines the P2P communication configuration according to the scoring result corresponding to the first electronic device and the scoring result corresponding to the second electronic device, comprising:

    The second electronic device determines a third scoring result corresponding to each of the N channels, where the third scoring result is the sum of the first scoring result and the second scoring result of the channel;

    The second electronic device selects a first channel from the N channels as a channel for performing the first P2P communication; and the third scoring result of the first channel is greater than the third scoring results of other channels.
21. The method according to claim 20, characterized in that the second electronic device determines the P2P communication configuration according to the scoring result corresponding to the first electronic device and the scoring result corresponding to the second electronic device, further comprising:

    When the first scoring result of the first channel is greater than the second scoring result, the second electronic device determines the first electronic device as a GO device;

    When the first scoring result of the first channel is less than the second scoring result, the second electronic device determines that the second electronic device serves as a GO device.
22. A communication method, characterized in that it is applied to a communication system, the communication system comprising a first electronic device and a second electronic device; the method is used to establish a P2P communication connection between the first electronic device and the second electronic device, the P2P communication connection is used for screen projection or multi-screen collaboration;

    The first electronic device supports CSA, and the second electronic device does not support CSA;

    The first available channel set of the first electronic device includes a first channel and a second channel; the first channel is a 2.4G channel, and the second channel is a 5G channel; the second available channel set of the second electronic device also includes the first channel and the second channel;

    The method comprises: using the second channel as a channel for the P2P communication connection;

    When the first electronic device supports GO CSA, using the first electronic device as a GO device for the P2P communication connection;

    When the first electronic device supports GC CSA, the first electronic device or the second electronic device is used as the GO device of the P2P communication connection.
23. A communication method, characterized in that it is applied to a communication system, the communication system comprising a first electronic device and a second electronic device; the method is used to establish a P2P communication connection between the first electronic device and the second electronic device, the P2P communication connection is used for file transfer;

    The first available channel set of the first electronic device includes a first channel and a second channel; the first channel is a 2.4G channel, and the second channel is a 5G channel; the second available channel set of the second electronic device also includes the first channel and the second channel;

    The method includes: using the second channel as a channel for the P2P communication connection.
24. A second electronic device, characterized in that the second electronic device comprises a processor and a memory; the memory is used to store computer execution instructions; when the processor executes the instructions stored in the memory, The second electronic device is enabled to execute the method according to any one of claims 1 to 21, or the method according to claim 22, or the method according to claim 23.