WO2021237564A1

WO2021237564A1 - Communication method and apparatus, and electronic device

Info

Publication number: WO2021237564A1
Application number: PCT/CN2020/092890
Authority: WO
Inventors: 彭玄; 王焱; 戴劲
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-12-02

Abstract

A communication method and apparatus, and an electronic device. The method comprises: determining the number of target terminals to communicate with an electronic device; if a plurality of target terminals are to communicate with the electronic device, determining a characteristic indicator of a communication channel between the electronic device and the plurality of target terminals, the characteristic indicator being used for representing the communication quality of the communication channel; and on the basis of the characteristic indicator, determining a communication policy when the electronic device communicates with the plurality of target terminals, the communication policy comprising an allocation policy of available communication frequency bands when the electronic device communicates with the plurality of target terminals. The allocation policy of the available communication frequency bands is adaptively adjusted according to the quality of the communication channel between the electronic device and the plurality of target terminals, which can improve the quality of the communication between the electronic device and the plurality of target terminals, and improve the user experience.

Description

Communication method, device and electronic equipment

Technical field

This application relates to the field of wireless communication technology, and specifically, to a communication method, device, and electronic equipment.

Background technique

Intelligent electronic devices such as drones, unmanned vehicles or unmanned robots are widely used in various fields. In some scenarios, these electronic devices may need to communicate with multiple terminals at the same time. Take drones as an example. It is used in scenarios such as patrol inspection, surveying and mapping, and the collected data may need to be sent to multiple terminals at the same time so that multiple users can view the collected data. Since the spectrum resources used in communication are limited, how to determine the appropriate communication method when communicating with multiple terminals to improve the communication quality between electronic devices such as drones and multiple terminals, and to enhance users The experience is very important.

Summary of the invention

In view of this, the present application provides a communication method, device and electronic equipment.

According to the first aspect of the present application, a communication method is provided, the method including:

Determine the number of target terminals to be communicated with the electronic device;

If the number of the target terminal is multiple, determining the characteristic index of the communication channel between the electronic device and the multiple target terminals, where the characteristic index is used to characterize the communication quality of the communication channel;

A communication strategy when the electronic device communicates with the multiple target terminals is determined based on the characteristic index, and the communication strategy includes an allocation strategy of available communication frequency bands when the electronic device communicates with the multiple target terminals.

According to a second aspect of the present application, there is provided a communication device, including a processor, a memory, and a computer program stored on the memory for execution by the processor. When the processor executes the computer program, the following is achieved step:

According to a third aspect of the present application, there is provided an electronic device including the communication device of the second aspect described above.

Applying the solution provided in this application, when an electronic device communicates with multiple target terminals, the characteristic index used to characterize the communication channel quality when the electronic device communicates with each target terminal can be determined first, and then the electronic device and the target can be determined according to the characteristic index The allocation strategy of the available communication frequency band when the terminal communicates. By adaptively adjusting the communication strategy between the electronic device and the target terminal according to the communication channel quality when the electronic device communicates with multiple target terminals, and determining the allocation method of the available communication frequency band, the communication quality between the electronic device and multiple target terminals can be improved, and the user can be improved Experience.

Description of the drawings

In order to explain the technical solutions in the embodiments of the present application more clearly, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor.

Fig. 1 is a schematic diagram of simultaneous communication between a drone and multiple control terminals according to an embodiment of the present application.

Fig. 2 is a flowchart of a communication method according to an embodiment of the present application.

Fig. 3 is a flowchart of a communication method according to an embodiment of the present application.

Fig. 4 is a schematic diagram of the logical structure of a communication device according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of this application.

Intelligent electronic devices such as drones, unmanned vehicles or unmanned robots are widely used in various fields and can be used to perform various tasks. Generally, the above-mentioned electronic devices have corresponding control terminals, and users can use the control terminals to control them . In some scenarios, these electronic devices may need to communicate with multiple control terminals at the same time. As shown in Figure 1, taking the drone as an example, the drone can be used for inspections, surveying, and other scenarios. The drone 11 collects The data may need to be sent to multiple control terminals 12 at the same time, so that multiple users can view the collected data through the control terminal 12. In related technologies, when communicating with multiple control terminals, the drone uses the same communication frequency band to share data to all control terminals. However, due to the quality of the communication channel between each control terminal and the drone They are not the same. For example, some control terminals are closer to the drone, so their communication quality may be better, and some control terminals are farther away from the drone, and their communication quality is relatively poor. If a unified processing method is adopted for all control terminals, the communication quality with each control terminal may not be guaranteed, and the user experience is poor.

Based on this, the present application provides a communication method that adaptively adjusts the communication mode with multiple target terminals according to the quality of the communication channel between the electronic device and the target terminal, so as to improve the communication quality between the electronic device and the multiple target terminals. Specifically, the method is shown in Figure 2 and includes the following steps:

S202. Determine the number of target terminals to be communicated with the electronic device.

S204: If there are multiple target terminals, determine a characteristic index of a communication channel between the electronic device and the multiple target terminals, where the characteristic index is used to characterize the communication quality of the communication channel;

S206. Determine a communication strategy when the electronic device communicates with the multiple target terminals based on the characteristic index, where the communication strategy includes an allocation strategy of available communication frequency bands when the electronic device communicates with the multiple target terminals.

The communication method of the present application may be applied to a communication device, and the communication device may be integrated in an electronic device, or may be a separate device separate from the electronic device. The electronic equipment can be various electronic equipment such as unmanned aerial vehicles, unmanned vehicles, unmanned robots, etc. The above-mentioned electronic equipment can communicate with one or more target terminals at the same time. For example, it can send collected images, videos and other data to Target terminal. Among them, the target terminal can be a control terminal of electronic equipment such as drones, for example, a remote control that is matched with the drone, or a user's mobile phone, tablet, or smart phone that is installed with a designated APP through which the drone can be controlled. Terminals such as watches and flying glasses. Of course, the target terminal may also be other terminals that can only receive data from these electronic devices, but do not have the function of controlling the electronic devices, which is not limited in this application.

Among them, the electronic device and the target terminal can use wireless communication technology to communicate. The wireless communication technology can be Wifi technology, Bluetooth technology, NB-IoT technology (Narrow Band Internet of Things, Narrow Band Internet of Things), LoRa technology, GSM technology (Global System). for Mobile Communications, global mobile communication system), Zigbee technology, UWB technology (Ultra-Wideband, ultra-wide spectrum short-range wireless communication technology), CDMA technology (Code Division Multiple Access, code division multiple access communication technology), etc., this application does not Do restrictions.

The electronic device can communicate with the target terminal based on a preset wireless communication protocol, such as a WiFi protocol, a Bluetooth protocol, or a custom protocol. The communication protocol defines the available communication frequency band when the electronic device communicates with the target terminal, such as 2.4G, 5.8G or other frequency bands. When an electronic device communicates with a target terminal, it can first determine the number of target terminals with which it communicates. When the number of target terminals is multiple, because different target terminals are different from the electronic device in different distances and the channel is blocked, so , The quality of the communication channel between different target terminals and electronic equipment is different. If the processing is not differentiated, and the unified communication method is adopted, the communication quality cannot be guaranteed. Therefore, the characteristic index of the communication channel when the electronic device communicates with each target terminal can be determined separately, and further, the characteristic index of the communication channel when the electronic device communicates with each target terminal in the available communication frequency band can be determined, wherein the available communication The frequency band may be an available communication frequency band of the electronic device. The characteristic index may be an index that characterizes the quality of the communication channel between the electronic device and the target terminal, and the quality of the communication channel can be determined based on the characteristic index. Then, the communication strategy when the electronic device communicates with the multiple target terminals is determined according to the characteristic index, where the communication strategy includes the allocation strategy of the available communication frequency band when the electronic device communicates with the multiple target terminals. For example, when an electronic device communicates with 4 target terminals at the same time, the bandwidth of the available communication frequency band is 200M. According to the communication channel parameters between the electronic device and the 4 target terminals, it can be determined that the 200M bandwidth is allocated to each control terminal, that is Use the 200M bandwidth to broadcast data to the above 4 target terminals, or divide it into 4 frequency bands with a bandwidth of 50M, and then allocate them to each target terminal separately, that is, one frequency band corresponds to one target terminal, and the frequency band corresponding to the target terminal is used to communicate with it , Or other allocation methods used in order to determine the appropriate communication method to obtain better communication quality.

Among them, in some embodiments, the characteristic index may be based on the signal-to-noise ratio, signal-to-interference-to-noise ratio, channel quality indicator, channel state information, channel impulse response, channel frequency response, channel matrix, One or more parameters such as modulation and coding strategy, block error rate and bit error rate are determined. For example, the characteristic index can be directly determined according to one of the parameters, for example, the signal-to-noise ratio, and the signal-to-noise ratio when the electronic device communicates with the target terminal can be directly used as the characteristic index to characterize the quality of the communication channel. Of course, the characteristic index can also be determined based on multiple parameters. For example, a weight can be set for the multiple parameters, and a value can be determined according to the value of each parameter and the corresponding weight as a characteristic index that characterizes the quality of the communication channel. Of course, this application is not limited to the above-listed manners. Among them, the above-mentioned parameters used to determine the characteristic index can be detected by the electronic device every preset time interval, and the characteristic index can be determined after the above-mentioned parameter is obtained, or the target terminal can be detected once every preset time interval. The obtained parameters are reported to the electronic device after determining the characteristic index.

In some embodiments, if the number of target terminals is single, all available communication frequency bands can be directly allocated to the single target terminal, so that the electronic device can use the available communication frequency band to communicate with the single target terminal.

In some embodiments, when determining the communication strategy when the electronic device communicates with multiple target terminals according to characteristic indicators, the degree of similarity between the characteristic indicators corresponding to the multiple target terminals may be determined first, and then according to the multiple target terminals The similarity of the corresponding characteristic indicators determines the communication strategy when the electronic device communicates with multiple target terminals. For example, if the characteristic indicators corresponding to multiple target terminals are relatively similar, it means that the electronic device and multiple target terminals have similar communication channel quality, and a unified communication method can be used. If the characteristic indicators corresponding to multiple target terminals are relatively different, This means that the quality of the communication channel between the electronic device and multiple target terminals is very different, and therefore, it needs to be treated differently.

In some embodiments, when determining the communication strategy between the electronic device and multiple target terminals according to the similarity of the characteristic indicators, the communication strategy may include the allocation strategy of the available communication frequency band when the electronic device communicates with the multiple target terminals, and at the same time. The QOS strategy when the electronic device communicates with multiple target terminals can be determined according to the similarity of the characteristic indicators. Among them, in some embodiments, the QOS strategy includes controlling one or more of the data transmission rate or data modulation mode between the electronic device and the target terminal when they communicate with each other. For example, in general, when the quality of the communication channel between the electronic device and the target terminal is good, the data transmission rate can be set higher, and the data modulation method can also be a modulation method with higher transmission efficiency, such as 64QAM (Quadrature Amplitude Modulation, Quadrature Amplitude Modulation), when the quality of the communication channel between the electronic device and the target terminal is poor, the data transmission rate can be set to be lower, and the data modulation method can also be used with a higher transmission efficiency. Low modulation methods, such as 4QAM, to ensure communication quality. In related technologies, for scenarios where an electronic device communicates with multiple target terminals, a unified communication method is usually used. For example, the same communication frequency band is used to share data to all target terminals, and QOS is performed on these multiple target terminals in a unified manner. Control, in order to ensure the data transmission instruction of the target terminal with the worst communication channel, usually the QOS strategy is determined based on the worst communication channel. In this way, the spectrum resources are not well utilized, and the communication quality of the target terminal with a better communication channel is not optimized, and the experience of the user corresponding to the target terminal with a better communication channel is reduced. Therefore, in the present application, a QOS strategy may be adaptively determined for each target terminal according to the similarity of characteristic indicators corresponding to multiple target terminals, so as to improve the utilization rate of spectrum resources.

In some embodiments, if the degree of similarity between the characteristic indicators corresponding to multiple target terminals is greater than the first preset similarity degree threshold, it is considered that the quality of the communication channel between the electronic device and the multiple target terminals is similar, and the available communication The frequency band is allocated to each of the multiple target terminals, and the electronic device can use the available communication frequency band to broadcast data to the multiple target terminals. Wherein, the first preset similarity degree threshold can be set according to actual requirements, for example, it can be set to 90%.

In some embodiments, since the characteristic indicators corresponding to the multiple target terminals are relatively similar, indicating that the quality of each communication channel is also relatively similar, the same QOS strategy can be adopted for the multiple target terminals. Wherein, the QOS strategy may be determined according to the characteristic index corresponding to any one of the multiple target terminals, or may be determined according to the average value of the characteristic indexes corresponding to the multiple target terminals. When the communication channel quality is relatively similar, adopting the same QOS strategy for multiple target terminals can also reduce the calculation overhead of the electronic device in determining the QOS strategy and save resources.

In some embodiments, if the degree of similarity between the characteristic indicators corresponding to multiple target terminals is less than or equal to the second preset similarity degree threshold, the available communication frequency band is divided into multiple first sub-bands, and the multiple first sub-bands are divided into multiple first sub-bands. One sub-frequency band is allocated to these multiple target terminals respectively. Wherein, the second preset similarity degree threshold may also be set according to actual requirements, for example, it may be set to 30%. If the similarity degree of the characteristic indicators corresponding to multiple target terminals is less than the second preset similarity degree threshold, it means that the quality of the communication channels corresponding to the multiple target terminals is quite different, and each is not similar. Therefore, for each target The terminals all need to adopt different communication methods. Therefore, the available communication frequency band can be divided into multiple sub-frequency bands, which are referred to as the first sub-frequency band hereinafter, and the multiple first sub-frequency bands are respectively allocated to the multiple target terminals. For example, suppose there are 4 target terminals whose characteristic indicators are quite different and they are not similar, and the available communication frequency band of electronic equipment is 100MHz-200MHZ. Therefore, the available communication frequency band can be divided into 4 frequency bands, for example, 100MHZ- 125MHZ, 125MHZ-150MHZ, 150MHZ-175MHZ, 175MHZ-200MHZ, and then allocate these four frequency bands to these four target terminals, so that they can communicate with electronic devices in the corresponding frequency bands.

Since the quality of the communication channel corresponding to each target terminal is quite different from that of other target terminals, in some embodiments, in order to improve the spectrum utilization as much as possible, for each target terminal, a separate electronic device can be determined for it. The QOS strategy during communication, the QOS strategy of each target terminal can be determined according to the characteristic index corresponding to the target terminal. In this way, the QOS strategy can be determined in a targeted manner according to the quality of the communication channel corresponding to each target terminal, which can not only ensure the communication quality of each target terminal, but also maximize the utilization of spectrum resources and improve user experience.

In some embodiments, the bandwidth of the first sub-band allocated to each target terminal may be the same. Of course, in some embodiments, the bandwidth of the first sub-band allocated to each target terminal may also be different, such as , The frequency band can be allocated according to the quality of the communication channel of each target terminal, which can be specifically determined according to actual needs, and this application does not limit this.

Of course, there are some scenarios where the characteristic indicators corresponding to multiple target terminals may be somewhat similar and some are not similar. For example, there are 4 target terminals. The characteristic indicators are characterized by the signal-to-noise ratio, and the signal-to-noise ratio is 95. %, 93%, 70%, 55%. Among them, two target terminals have similar characteristics, but are not similar to the other two. In this case, target terminals can be divided into multiple groups, that is, target terminals with similar characteristic indicators can be divided into the same group. Therefore, in some embodiments, if multiple target terminals can be assigned to multiple groups, the premise that the target terminal can be assigned to multiple groups is that at least one group includes at least two target terminals, where, The similarity degree of the characteristic indicators corresponding to the target terminals among multiple groups is less than the third preset similarity threshold, and the similarity of the characteristic indexes of the target terminals in each group is greater than or equal to the fourth similarity threshold, that is, there are at least two groups. The characteristic indexes of each target terminal are similar, but not similar to the characteristic indexes of other target terminals. At this time, target terminals with similar characteristic indicators can be divided into one group to obtain multiple groups. Then, the available communication frequency band can be divided into multiple sub-bands, referred to as second sub-bands hereinafter, and the multiple second sub-bands can be allocated to the multiple groups respectively. As in the above example, the target terminal can be divided into three groups, the target terminal with a signal-to-noise ratio of 95% and the target terminal with a signal-to-noise ratio of 93% are divided into one group, and the target terminal with a signal-to-noise ratio of 70% is divided into one group. , Target terminals with a signal-to-noise ratio of 55% are grouped into one group.

In some embodiments, after the target terminal is divided into multiple groups, since the communication channel quality of the target terminal in each group is relatively similar, the same QOS strategy can be determined for the target terminal in each group. By assigning target terminals with similar communication channel quality to the same group, assigning communication frequency bands to each group and formulating QOS strategies, it can not only ensure the communication quality of each target terminal, but also maximize the utilization of spectrum resources and improve User experience can also minimize the resource overhead of electronic devices when formulating QOS strategies.

In some embodiments, the bandwidth of the second sub-band allocated by the target terminal in each group may be determined according to the number of target terminals included in the group, for example, it may be positively correlated with the number of target terminals in the group . For example, the available communication frequency band of electronic equipment is 100MHz-200MHZ, there are a total of four target terminals, which are divided into 3 groups, suppose they are 1, 2, and 3 groups, 1 group contains 2 target terminals, and 2 groups The and 3 groups each contain a target terminal, therefore, the communication frequency band can be divided into 100-150MHZ, 150-175MHZ, 175-200MHZ three frequency bands, 1 group corresponds to 100-150MHZ, 2 groups correspond to 150-175MHZ, 3 groups correspond to 175- 200MHZ. Of course, the allocation of the second sub-band may also adopt other allocation methods, which are not limited in this application.

In order to further explain the communication method provided by the present application, the following is explained in conjunction with a specific embodiment.

UAVs are widely used in various fields. Usually, UAVs have corresponding control terminals to control them. At the same time, data such as images and videos collected by UAVs are also sent to the control terminals. Among them, the drone and the control terminal can communicate with the control terminal through WiFi, Bluetooth or a custom protocol. In some scenarios, there are scenarios where multiple users use multiple control terminals to control the drone, and no one The machine needs to send the collected data to multiple control terminals at the same time. In related technologies, UAVs use the same communication frequency band to uniformly send data to multiple control terminals, and determine the QOS strategy and spectrum utilization rate of multiple terminals according to the control terminal with the worst communication channel quality among the multiple control terminals. Lower. In order to improve communication quality and spectrum utilization, and improve user experience, this application provides a communication method.

The specific process is shown in Figure 3. The drone can first determine the number of control terminals with which it communicates (S301), and then determine whether the number of control terminals is single or multiple (S302). When the number of control terminals is single, use In unicast mode, all available communication frequency bands are allocated to the single control terminal, and the QOS strategy is determined for this control terminal (S303). When the number of control terminals is multiple, the characteristic index used to characterize the communication channel quality when the drone communicates with each control terminal is determined (S304), where the characteristic index can be based on the signal-to-noise ratio, signal-to-interference-to-noise ratio, One or more parameters such as channel quality indicator, channel state information, channel impulse response, channel frequency response, channel matrix, modulation and coding strategy, block error rate and bit error rate are determined. For example, the signal-to-noise ratio can be directly used as the characteristic index, or the signal-to-noise ratio, channel quality indicator, channel state information, channel impulse response and their respective weights can be used to comprehensively determine the characteristic index. After determining the characteristic index corresponding to each control terminal, the similarity of each characteristic index can be determined (S305), and then compared with the preset similarity threshold (S306), if the similarity of each characteristic index is greater than the first similarity threshold , The unmanned aerial vehicle can use a broadcast method, that is, use the available communication frequency band to broadcast data to multiple control terminals, and determine the same QOS strategy for all control terminals (S307). If the similarity of each characteristic index is less than the second similarity threshold, the available communication frequency band is divided into multiple sub-bands (the number of sub-bands can be the same as the number of control terminals), the bandwidth of each sub-band can be equal, and then the more Each sub-band is allocated to multiple control terminals, and for each control terminal, a QOS strategy can be determined separately according to its communication channel quality (S308). If there are multiple characteristic indicators, at least two are similar, and are not similar to other characteristic indicators, that is, the control terminal meets the grouping conditions, the control terminal can be divided into multiple groups, of which at least one group includes at least two The control terminal, wherein the similarity degree of the characteristic indexes corresponding to the control terminals among the multiple groups is less than the third similarity threshold, and the similarity of the characteristic indexes of the control terminals in each group is greater than or equal to the fourth similarity threshold, this In this case, a multicast method can be used, that is, the available communication frequency band is divided into multiple sub-bands (the number of sub-bands is the same as the number of packets), and then the multiple sub-bands are allocated to these multiple groups, and the sub-bands obtained by each group are allocated The bandwidth of is positively correlated with the number of control terminals in the group. For each group, a QOS strategy can be formulated (S309).

According to the number of control terminals communicating with the drone and the quality of the communication channel, adaptive adjustments are made to the allocation strategy of the available communication frequency band when communicating with the control terminal and the QOS strategy, which can improve the communication quality and spectrum efficiency of the drone and each control terminal. Utilization rate, improve user experience.

Correspondingly, the present application also provides a communication device. As shown in FIG. 4, the communication device includes a processor 41, a memory 42, and a computer program stored on the memory 42 for execution by the processor 41. When the processor 41 executes the computer program, the following steps are implemented:

If the number of the target terminal is multiple, determine the characteristic index of the communication channel between the electronic device and the target terminal, and the characteristic index is used to characterize the communication quality of the communication channel;

A communication strategy between the electronic device and the target terminal is determined based on the characteristic index, and the communication strategy includes an allocation strategy of available communication frequency bands when the electronic device communicates with the target terminal.

In some embodiments, if the number of the target terminal is single, the available communication frequency band is allocated to the single target terminal.

In some embodiments, when the processor is configured to determine a communication strategy when the electronic device communicates with the multiple target terminals based on the characteristic index, it is specifically configured to:

Determining the degree of similarity between the characteristic indicators corresponding to the multiple target terminals;

A communication strategy when the electronic device communicates with the multiple target terminals is determined based on the degree of similarity.

In some embodiments, the communication strategy further includes: a QOS strategy when the electronic device communicates with the multiple target terminals.

In some embodiments, when the processor is configured to determine a communication strategy when the electronic device communicates with the multiple target terminals based on the degree of similarity, it is specifically configured to:

If the degree of similarity between the characteristic indicators corresponding to the multiple target terminals is greater than the first preset similarity degree threshold, the available communication frequency band is allocated to each of the multiple target terminals.

In some embodiments, the processor is further configured to: adopt the same QOS strategy for the multiple target terminals.

In some embodiments, when the processor is configured to determine a communication strategy for the electronic device to communicate with the multiple target terminals based on the degree of similarity, it is specifically configured to:

If the degree of similarity between the characteristic indicators corresponding to the multiple target terminals is less than or equal to the second preset similarity degree threshold, the available communication frequency band is divided into a plurality of first sub-bands, and the plurality of first The sub-bands are respectively allocated to the multiple target terminals.

In some embodiments, the bandwidths of the plurality of first sub-bands are the same.

In some embodiments, a QOS policy is determined separately for each target terminal.

If the multiple target terminals can be allocated to multiple groups, dividing the available frequency band into multiple second sub-bands, and allocating the multiple second sub-bands to the multiple groups respectively;

Wherein, at least one of the groups includes at least two target terminals, the similarity degree of the characteristic indexes corresponding to the target terminals among the plurality of groups is less than the third preset similarity threshold, and the target terminals in the group correspond to The similarity degree of the characteristic index is greater than or equal to the fourth similarity degree threshold.

In some embodiments, the processor is further configured to: determine a QOS policy for the target terminal in each group.

In some embodiments, the bandwidth of the second sub-band allocated by the target terminal in each group is positively correlated with the number of target terminals included in the group.

In some embodiments, the characteristic index is determined based on one or more of the following parameters: signal-to-noise ratio, signal-to-interference-to-noise ratio, channel quality indicator, channel state information, channel impulse response, channel frequency response, channel matrix, modulation And coding strategy, block error rate and bit error rate.

In some embodiments, the QOS control strategy includes controlling the data transmission rate and/or modulation method with the target terminal.

For the specific details of the communication method executed by the communication device, reference may be made to the description in each embodiment of the above communication method, which will not be repeated here.

Further, this application also includes an electronic device that includes the communication device in each of the foregoing embodiments. The electronic device can communicate with multiple target terminals at the same time. The electronic device can be a drone or an unmanned vehicle. , Intelligent equipment such as unmanned robots.

Correspondingly, an embodiment of this specification also provides a computer storage medium in which a program is stored, and the program is executed by a processor to implement the communication method in any of the foregoing embodiments.

The embodiments of this specification may adopt the form of a computer program product implemented on one or more storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing program codes. Computer usable storage media include permanent and non-permanent, removable and non-removable media, and information storage can be achieved by any method or technology. The information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to: phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical storage, Magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media can be used to store information that can be accessed by computing devices.

As for the device embodiment, since it basically corresponds to the method embodiment, the relevant part can refer to the part of the description of the method embodiment. The device embodiments described above are merely illustrative, where the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, they may be located in One place, or it can be distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the objectives of the solutions of the embodiments. Those of ordinary skill in the art can understand and implement without creative work.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply one of these entities or operations. There is any such actual relationship or order between. The terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements that are not explicitly listed. Elements, or also include elements inherent to such processes, methods, articles, or equipment. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article, or equipment that includes the element.

The methods and devices provided by the embodiments of the present invention are described in detail above. Specific examples are used in this article to illustrate the principles and implementations of the present invention. The descriptions of the above embodiments are only used to help understand the methods and methods of the present invention. Core idea; At the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and the scope of application. In summary, the content of this specification should not be construed as a limitation of the present invention .

Claims

A communication method, characterized in that the method includes:

Determine the number of target terminals to be communicated with the electronic device;

If the number of the target terminal is multiple, determining the characteristic index of the communication channel between the electronic device and the multiple target terminals, where the characteristic index is used to characterize the communication quality of the communication channel;

A communication strategy when the electronic device communicates with the multiple target terminals is determined based on the characteristic index, and the communication strategy includes an allocation strategy of available communication frequency bands when the electronic device communicates with the multiple target terminals.
The method according to claim 1, wherein the method further comprises: if the number of the target terminal is single, allocating the available communication frequency band to the single target terminal.
The method according to claim 1 or 2, wherein the determining a communication strategy when the electronic device communicates with the multiple target terminals based on the characteristic index comprises:

Determining the degree of similarity between the characteristic indicators corresponding to the multiple target terminals;

A communication strategy when the electronic device communicates with the multiple target terminals is determined based on the degree of similarity.
The method according to claim 3, wherein the communication strategy further comprises: a QOS strategy when the electronic device communicates with the multiple target terminals.
The method according to claim 3 or 4, wherein the determining a communication strategy when the electronic device communicates with the multiple target terminals based on the degree of similarity comprises:

If the degree of similarity between the characteristic indicators corresponding to the multiple target terminals is greater than the first preset similarity degree threshold, the available communication frequency band is allocated to each of the multiple target terminals.
The method according to claim 5, wherein the method further comprises: adopting the same QOS strategy for the multiple target terminals.
The method according to any one of claims 3-6, wherein the determining a communication strategy for the electronic device to communicate with the multiple target terminals based on the degree of similarity comprises:

If the degree of similarity between the characteristic indicators corresponding to the multiple target terminals is less than or equal to the second preset similarity degree threshold, the available communication frequency band is divided into a plurality of first sub-bands, and the plurality of first The sub-bands are respectively allocated to the multiple target terminals.
The method according to claim 7, wherein the bandwidths of the plurality of first sub-bands are the same.
The method according to claim 7 or 8, wherein the method further comprises: separately determining a QOS strategy for each target terminal.
The method according to any one of claims 3-9, wherein the determining a communication strategy when the electronic device communicates with the multiple target terminals based on the degree of similarity comprises:

If the multiple target terminals can be allocated to multiple groups, dividing the available communication frequency band into multiple second sub-bands, and allocating the multiple second sub-bands to the multiple groups respectively;

Wherein, at least one of the groups includes at least two target terminals, the similarity degree of the characteristic indexes corresponding to the target terminals among the plurality of groups is less than the third preset similarity threshold, and the characteristics of the target terminals in the group The similarity of the index is greater than or equal to the fourth similarity threshold.
The method according to claim 10, wherein the method further comprises: determining a QOS policy for the target terminal in each group.
The method according to claim 10 or 11, wherein the bandwidth of the second sub-band allocated by the target terminal in each group is positively correlated with the number of target terminals included in the group.
The method according to any one of claims 4-12, wherein the QOS control strategy includes controlling a data transmission rate and/or a modulation mode with the target terminal.
The method according to any one of claims 1-13, wherein the characteristic index is determined based on one or more of the following parameters: signal-to-noise ratio, signal-to-interference-to-noise ratio, channel quality indicator, channel state information, channel Impulse response, channel frequency response, channel matrix, modulation and coding strategy, block error rate and bit error rate.
A communication device, which is characterized by comprising a processor and a memory, wherein:

The memory is used to store a computer program executable by the processor;

When the processor executes the computer program, the following steps are implemented:

Determine the number of target terminals to be communicated with the electronic device;

If the number of the target terminal is multiple, determining the characteristic index of the communication channel between the electronic device and the target terminal, where the characteristic index is used to characterize the communication quality of the communication channel;

A communication strategy between the electronic device and the target terminal is determined based on the characteristic index, and the communication strategy includes an allocation strategy of available communication frequency bands when the electronic device communicates with the target terminal.
The communication device according to claim 15, wherein the processor is further configured to: if the number of the target terminal is single, allocate the available communication frequency band to the single target terminal.
The communication device according to claim 15 or 16, wherein the processor is configured to determine a communication strategy when the electronic device communicates with the multiple target terminals based on the characteristic index, and is specifically configured to:

Determining the degree of similarity between the characteristic indicators corresponding to the multiple target terminals;

A communication strategy when the electronic device communicates with the multiple target terminals is determined based on the degree of similarity.
The communication device according to claim 17, wherein the communication strategy further comprises: a QOS strategy when the electronic device communicates with the multiple target terminals.
The communication device according to claim 17 or 18, wherein the processor is configured to determine a communication strategy when the electronic device communicates with the multiple target terminals based on the degree of similarity, and is specifically configured to:

If the degree of similarity between the characteristic indicators corresponding to the multiple target terminals is greater than the first preset similarity degree threshold, the available communication frequency band is allocated to each of the multiple target terminals.
The communication device according to claim 19, wherein the processor is further configured to: adopt the same QOS strategy for the multiple target terminals.
The communication device according to any one of claims 17-20, wherein the processor is configured to determine a communication strategy for the electronic device to communicate with the multiple target terminals based on the degree of similarity, and is specifically configured to :

If the degree of similarity between the characteristic indicators corresponding to the multiple target terminals is less than or equal to the second preset similarity degree threshold, the available communication frequency band is divided into a plurality of first sub-bands, and the plurality of first The sub-bands are respectively allocated to the multiple target terminals.
The communication device according to claim 21, wherein the bandwidths of the plurality of first sub-bands are the same.
The communication device according to claim 21 or 22, wherein the processor is further configured to individually determine a QOS strategy for each target terminal.
The communication device according to any one of claims 17-23, wherein the processor is configured to determine a communication strategy when the electronic device communicates with the multiple target terminals based on the degree of similarity, specifically using At:

If the multiple target terminals can be allocated to multiple groups, dividing the available frequency band into multiple second sub-bands, and allocating the multiple second sub-bands to the multiple groups respectively;

Wherein, at least one of the groups includes at least two target terminals, the similarity degree of the characteristic indexes corresponding to the target terminals among the plurality of groups is less than the third preset similarity threshold, and the target terminals in the group correspond to The similarity degree of the characteristic index is greater than or equal to the fourth similarity degree threshold.
The communication device according to claim 24, wherein the processor is further configured to determine a QOS strategy for the target terminal in each group.
The communication device according to claim 24 or 25, wherein the bandwidth of the second sub-band allocated by the target terminal in each group is positively correlated with the number of target terminals included in the group.
The communication device according to any one of claims 18-26, wherein the QOS control strategy includes controlling a data transmission rate and/or a modulation mode with the target terminal.
The communication device according to any one of claims 15-27, wherein the characteristic index is determined based on one or more of the following parameters: signal-to-noise ratio, signal-to-interference-to-noise ratio, channel quality indicator, channel state information, Channel impulse response, channel frequency response, channel matrix, modulation and coding strategy, block error rate and bit error rate.
An electronic device, characterized by comprising the communication device according to any one of claims 15-28.