CN115623452A

CN115623452A - Method, equipment and system for managing wireless channel resources

Info

Publication number: CN115623452A
Application number: CN202110805847.7A
Authority: CN
Inventors: 曹倩; 钟晓峰
Original assignee: Tsinghua University; Huawei Technologies Co Ltd
Current assignee: Tsinghua University; Huawei Technologies Co Ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2023-01-17
Also published as: WO2023284862A1

Abstract

A management method, equipment and system of wireless channel resources relate to the technical field of wireless communication, can improve the use efficiency of the channel resources, reduce the time delay of services on a channel, and improve the use experience of terminal services, and the method comprises the following steps: a plurality of terminals (generally, a plurality of terminals located within a certain range and having a distance between the terminals smaller than a certain threshold) perform channel detection cooperatively, and determine a channel for data transmission for a service of a single terminal based on channel information detected by the plurality of terminals.

Description

Method, equipment and system for managing wireless channel resources

Technical Field

The present application relates to the field of wireless communication technologies, and in particular, to a method, a device, and a system for managing wireless channel resources.

Background

Currently, in a home network or a work network, data sharing, device linkage, cooperative work, and the like between terminals may be realized by using a wireless communication network, such as a wireless fidelity (Wi-Fi) network. It can be understood that as more and more terminals exist in the home network or the working network, the types of services between the terminals are richer, and the requirement for data transmission between the terminals is greater. However, the channel resources available between terminals are limited. Thus, the infinitely increasing demand for data transmission conflicts with limited channel resources.

Taking a Wi-Fi network as an example, two terminals can realize fast data transmission between the two terminals by establishing a Point-to-Point (P2P) link. In a P2P scenario, before sending or receiving data, a terminal performs channel detection, and decides from which channel to send or receive data based on a channel detection result, but a channel that is decided last may still overlap with channels used on other links that already exist in the periphery. Therefore, the existing method for the terminal to perform channel selection based on its own channel sounding result needs to be improved.

Disclosure of Invention

The management method, the equipment and the system for the wireless channel resources can improve the use efficiency of the channel resources, reduce the time delay of services on the channel and improve the use experience of terminal services.

In order to achieve the above object, the embodiments of the present application provide the following technical solutions:

in a first aspect, a management system for radio channel resources is provided, including: the first terminal is used for sending a first message to the third terminal, wherein the first message comprises the identifier of the first terminal and the identifier of the second terminal; the third terminal is used for determining the configuration information of the target channel according to the identifier of the first terminal, the identifier of the second terminal and a channel use information table maintained by the third terminal in the first message; the channel use information table comprises use information of each channel reported by the first terminal and use information of each channel reported by the second terminal; the third terminal is also used for returning the configuration information of the target channel to the first terminal; the first terminal is further used for establishing a wireless link with the second terminal according to the configuration information of the target channel.

The first message is used for requesting the third terminal to apply for a channel for the wireless link of the first terminal and the second terminal. That is, channel information, i.e., a channel use information table, of a plurality of terminals (e.g., a first terminal and a second terminal) is centrally maintained by a third terminal (i.e., a resource management device). Wherein the third terminal and the plurality of terminals form a device group. When a first terminal needs to establish wireless connection with a second terminal, the first terminal applies for a channel to a third terminal which maintains a channel use information table (namely, channel information of the whole group), the third terminal obtains the channel information around the first terminal and the second terminal from the channel use information table, and accordingly, the most appropriate target channel is decided for the two terminals for transmitting data. It can be understood that, because the target channel is decided for the first terminal and the second terminal based on the global channel information maintained by the third terminal, it is possible to avoid that other terminals in the device group where the third terminal is located conflict with the current data transmission, thereby improving the utilization rate of channel resources and improving the data transmission efficiency of the channel.

In a possible implementation manner, the first terminal is further configured to send the type of the first service to the third terminal; and the third terminal is further configured to determine the configuration information of the target channel according to the type of the first service when the configuration information of the target channel is determined according to the identifier of the first terminal, the identifier of the second terminal, and the channel use information table maintained by the third terminal in the first message.

The first service is a service to be executed after the first terminal and the second terminal establish a connection, and is also referred to as a target service. The service type of the target service includes a delay sensitive service or a high bandwidth service. Alternatively, the types of target traffic include voice (voice) traffic, video (video) traffic, best-effort (best-effort) traffic, background (background) traffic, and the like. In some examples, the third terminal (resource management device) maintains the full set of channel information, and establishes the association between each channel and the service information of the resident terminal. Therefore, when the first group of terminals needs to establish a wireless link (for example, the first terminal and the second terminal need to establish a wireless link to execute the target service), the third terminal selects a channel suitable for the target service for the first terminal and the second terminal according to the channel information of the whole group and the type of the target service, which is beneficial to improving the data transmission efficiency of the target service and improving the use experience of the target service. On the whole, the technical scheme provided by the embodiment of the application can optimize the use efficiency of the global channel resources in the equipment group and improve the overall use experience of the terminal services in the equipment group.

In a possible implementation manner, the first message further includes a type of the first service.

In one possible implementation, the configuration information of the target channel includes a center frequency, a main frequency, and a channel bandwidth.

In a possible implementation manner, the usage information of each channel reported by the first terminal includes: one or more of duty ratio on each channel, resident terminal information on each channel, service type of each resident terminal, or received signal strength corresponding to each resident terminal, which are scanned by the first terminal; the use information of each channel reported by the second terminal comprises: one or more of the duty ratio of each channel scanned by the second terminal, the information of the resident terminal on each channel, the service type of each resident terminal, or the received signal strength corresponding to each resident terminal.

In a possible implementation manner, the determining, by the third terminal, the configuration information of the target channel according to the identifier of the first terminal, the identifier of the second terminal, and the channel usage information table maintained by the third terminal in the first message specifically includes: the third terminal searches channel information around the first terminal from a channel use information table maintained by the third terminal according to the identifier of the first terminal in the first message; and searching channel information around the second terminal from a channel use information table maintained by the third terminal according to the identifier of the second terminal in the first message.

In a possible implementation manner, the third terminal is further configured to send a second message before receiving the first message sent by the first terminal, where the second message is used to request the first terminal to report the usage information of each channel.

That is, the terminals in the device group report the detected channel information to the resource management device (i.e., the third terminal) of the device group in real time or periodically, or the channel information obtained from other terminals.

In some examples, the resource management device (i.e., the third terminal) may request, according to a certain rule, one or more terminals of the device group to report channel information detected by the one or more terminals, or channel information acquired by the one or more terminals from other terminals.

In a possible implementation manner, the second message is a broadcast message and is further used for requesting the second terminal to report the use information of each channel; or, the third terminal is further configured to send a third message to the second terminal before receiving the first message sent by the first terminal, where the third message is used to request the second terminal to report the usage information of each channel.

That is, the resource management device may send a multicast or unicast message to one or more terminals in real time or periodically, requesting the one or more terminals to report information of each channel. The resource management device may also send a broadcast message in real time or periodically, requesting all terminals in the group to report information of each channel.

In a possible implementation manner, the third terminal is further configured to send a fourth broadcast message, where the fourth broadcast message includes an identifier of the third terminal; the first terminal is further used for determining to send a fifth message to the third terminal according to the received signal strength of the received fourth broadcast message after receiving the fourth broadcast message, wherein the fifth message is used for requesting to join the group where the third terminal is located; and the third terminal is further used for sending a sixth message to the first terminal according to the received fifth message of the first terminal, wherein the sixth message is used for confirming that the first terminal is added into the group where the third terminal is located.

Therefore, the method for the first terminal to join the equipment group where the third terminal is located is provided. It is understood that the second terminal can also join the device group in which the third terminal is located by using the same method.

In a possible implementation manner, the third terminal is further configured to update the channel usage information table after determining the configuration information of the target channel.

Specifically, the channel usage information table is updated according to the configuration information of the target channel and the information of the first service executed by the first terminal and the second terminal.

In a second aspect, a management system for radio channel resources is provided, including: the first terminal is used for sending a first message to the third terminal, wherein the first message comprises the identifier of the second terminal; the third terminal is used for determining the channel information around the second terminal from a channel use information table maintained by the third terminal according to the identifier of the second terminal in the first message; and returning channel information around the second terminal to the first terminal; the first terminal is also used for determining the configuration information of the target channel according to the channel information around the second terminal and the channel information around the first terminal; and establishing a wireless link with the second terminal according to the configuration information of the target channel.

As can be seen, the channel information of a plurality of terminals (e.g., the first terminal and the second terminal) is still maintained centrally by the third terminal (i.e., the resource management device). Wherein the third terminal and the plurality of terminals form a device group. When the first terminal needs to establish wireless connection with the second terminal, the first terminal may obtain channel information around the first terminal and the second terminal from the third terminal, and then the first terminal determines the most appropriate target channel according to the obtained channel information around the first terminal and the second terminal, so as to transmit data with the second terminal. Thus, another method of selecting a channel is provided. It can be understood that, since the decision is no longer made based on the channel information detected by only a single terminal (e.g., the first terminal), but is made with reference to the channel information detected by other terminals (e.g., the second terminal) in the first group, the present application can avoid that the other terminals in the device group collide with the current data transmission (i.e., the data transmission between the first terminal and the second terminal), thereby improving the utilization rate of channel resources and improving the data transmission efficiency of the channel.

It should be noted that, in some embodiments, the first message includes the second terminal identifier, and does not include the identifier of the first terminal, and is used to request the third terminal for channel information around the second terminal. And then, the first terminal determines the configuration information of the target channel according to the channel information around the second terminal returned by the third terminal and the channel information around the first terminal cached by the first terminal. In further embodiments, the first message includes an identification of the first terminal and an identification of the second terminal for requesting channel information around the first terminal and channel information around the second terminal from the third terminal. And then, the first terminal determines the configuration information of the target channel according to the channel information around the second terminal and the channel information around the first terminal, which are returned by the third terminal.

In a possible implementation manner, the first message further includes an identifier of the first terminal; the third terminal is also used for determining the channel information around the first terminal from a channel use information table maintained by the third terminal according to the identifier of the first terminal in the first message; and returns channel information around the first terminal to the first terminal.

In a possible implementation manner, the first terminal is further configured to send a second message to the third terminal after determining the configuration information of the target information, where the second message includes the configuration information of the target channel and information of a service executed by the first terminal; and the third terminal is also used for updating the channel use information table according to the configuration information of the target channel and the information of the service executed by the first terminal.

In a third aspect, a method for managing radio channel resources is provided, including: a third terminal receives a first message sent by a first terminal, wherein the first message comprises an identifier of the first terminal and an identifier of a second terminal; determining the configuration information of a target channel according to the identifier of the first terminal, the identifier of the second terminal and a channel use information table maintained by the third terminal in the first message; the channel use information table comprises use information of each channel reported by the first terminal and use information of each channel reported by the second terminal; and returning the configuration information of the target channel to the first terminal.

In a possible implementation manner, before determining the configuration information of the target channel according to the identifier of the first terminal, the identifier of the second terminal, and the channel usage information table maintained by the third terminal in the first message, the method further includes: the third terminal receives the type of the first service sent by the first terminal; and when the third terminal determines the configuration information of the target channel according to the identifier of the first terminal, the identifier of the second terminal and a channel use information table maintained by the third terminal in the first message, the third terminal also determines the configuration information of the target channel according to the type of the first service.

In a possible implementation manner, the usage information of each channel reported by the first terminal includes: one or more of duty ratio on each channel, resident terminal information on each channel, service type of each resident terminal, or received signal strength corresponding to each resident terminal, which are scanned by the first terminal; the use information of each channel reported by the second terminal comprises: the duty ratio of each channel scanned by the second terminal, the information of the resident terminals on each channel, the service type of each resident terminal, or the received signal strength corresponding to each resident terminal.

In a possible implementation manner, before the third terminal receives the first message sent by the first terminal, the method further includes: and the third terminal sends a second message, wherein the second message is used for requesting the first terminal to report the use information of each channel.

In a possible implementation manner, the second message is a broadcast message and is further used for requesting the second terminal to report the use information of each channel; or the third terminal sends a third message to the second terminal before receiving the first message sent by the first terminal, where the third message is used to request the second terminal to report the usage information of each channel.

In a possible implementation manner, before the third terminal receives the first message sent by the first terminal, the method further includes: the third terminal sends a fourth broadcast message, wherein the fourth broadcast message comprises the identifier of the third terminal; the third terminal receives a fifth message sent by the first terminal, wherein the fifth message is used for requesting to join a group where the third terminal is located; and the third terminal determines to send a sixth message to the first terminal according to the received fifth message of the first terminal, wherein the sixth message is used for confirming that the first terminal is added into the group where the third terminal is located.

In a possible implementation manner, after the third terminal determines the configuration information of the target channel, the method further includes: the third terminal updates the channel usage information table.

In a fourth aspect, a method for managing radio channel resources is provided, including: the first terminal sends a first message to the third terminal, wherein the first message comprises the identifier of the first terminal and the identifier of the second terminal; the first terminal receives configuration information of a target channel returned by the third terminal; the configuration information of the target channel is determined by the third terminal according to the identifier of the first terminal, the identifier of the second terminal and a channel use information table maintained by the third terminal in the first message; the channel use information table comprises use information of each channel reported by the first terminal and use information of each channel reported by the second terminal. And the first terminal establishes a wireless link with the second terminal according to the configuration information of the target channel.

In a fifth aspect, a method for managing radio channel resources is provided, including: the first terminal sends a first message to the third terminal, wherein the first message comprises the identifier of the second terminal; the first terminal receives channel information around the second terminal returned by the third terminal; the channel information around the second terminal is determined by the third terminal according to the identifier of the second terminal in the first message and a channel information table maintained by the third terminal; the channel use information table comprises use information of each channel reported by the first terminal and use information of each channel reported by the second terminal; the first terminal determines the configuration information of a target channel according to the channel information around the second terminal and the channel information around the first terminal; and establishing a wireless link with the second terminal according to the configuration information of the target channel.

In a possible implementation manner, the first message further includes an identifier of the first terminal; the first terminal also receives channel information around the first terminal sent by the third terminal, and the channel information around the first terminal is determined by the third terminal according to the identifier of the first terminal in the first message and a channel information table maintained by the third terminal.

In a possible implementation manner, after determining the configuration information of the target information, the method further includes: the first terminal sends a second message to the third terminal, wherein the second message comprises the configuration information of the target channel and the information of the service executed by the first terminal; the second message is used for the third terminal to update the channel information table.

In a sixth aspect, a method for managing radio channel resources is provided, including: a third terminal receives a first message sent by a first terminal, wherein the first message comprises an identifier of a second terminal; the third terminal determines the channel information around the second terminal from a channel use information table maintained by the third terminal according to the identifier of the second terminal in the first message; and returns channel information around the second terminal to the first terminal.

The channel usage information table includes usage information of each channel reported by the first terminal and usage information of each channel reported by the second terminal.

A seventh aspect provides a terminal, including: a processor, a memory, and a wireless communication module, the memory and the wireless communication module being coupled to the processor, the memory being configured to store computer program code, the computer program code comprising computer instructions that, when read by the processor from the memory, cause the terminal to perform the method of any of the possible implementations of the third aspect, the fourth aspect, and any of the above.

An eighth aspect provides a computer-readable storage medium, which includes computer instructions that, when executed on a terminal, cause the terminal to perform the method of any one of the possible implementations of the third aspect, the fourth aspect, and any one of the above aspects.

A ninth aspect provides a computer program product for causing a computer to perform the method of the third aspect, the fourth aspect and any possible implementation manner of any one of the above aspects when the computer program product runs on the computer.

A tenth aspect provides a chip system, including a processor, wherein when the processor executes the instructions, the processor performs the method according to the third aspect, the fourth aspect, and any possible implementation manner of any one of the third aspect and the fourth aspect.

The technical effects that can be achieved by the method, the terminal, the computer-readable storage medium, the computer program product, and the chip system provided by the third to tenth aspects can be obtained by referring to the description of the first and second aspects about the technical effects.

Drawings

Fig. 1 is a schematic distribution diagram of a wireless channel in a 2.4G band;

fig. 2 is a schematic distribution diagram of wireless channels in a 5.2G frequency band;

fig. 3 is a schematic distribution diagram of wireless channels in the 5.8G band;

fig. 4 is a schematic diagram of a binding relationship of wireless channels in a 5G band;

fig. 5 is a schematic diagram of a system architecture of a home scenario provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of a channel resource management system according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a managed device 100 according to an embodiment of the present application;

fig. 8 is a schematic flowchart of a method for joining a device group in which a router is located according to an embodiment of the present application;

fig. 9 is a schematic interface diagram illustrating an arrangement of a router as a resource management device according to an embodiment of the present application;

fig. 10 is a flowchart illustrating a method for a resource management device to maintain channel information according to an embodiment of the present application;

fig. 11 is a flowchart illustrating a method for reporting channel information to a resource management device by a managed device according to an embodiment of the present application;

fig. 12 is a schematic flowchart of a method for deciding a channel for a mobile phone and a PC based on channel information managed by a router according to an embodiment of the present application;

fig. 13 is a schematic flowchart of another method for deciding a channel for a mobile phone and a PC based on channel information managed by a router according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of a chip system according to an embodiment of the present disclosure.

Detailed Description

In the description of the present application, a "/" indicates a relationship in which the objects associated before and after are an "or", for example, a/B may indicate a or B; in the present application, "and/or" is only an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. Also, in the description of the present application, "a plurality" means two or more than two unless otherwise specified. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a and b, a and c, b and c, a and b and c, wherein a, b and c can be single or multiple. Additionally, the words "exemplary" or "such as" are used herein to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

In the embodiments of the present application, a channel, also referred to as a channel or a frequency band, is a data signal transmission channel in which a wireless signal is used as a transmission carrier. For example, wi-Fi signals support a 2.4G band and a 5G band. Fig. 1 is a schematic diagram of channel distribution in a 2.4G frequency band. The operating frequency of the 2.4G frequency band is 2.4-2.4835GHz and is divided into 13 channels. The central frequency of each channel is different by 5MHz, and the bandwidth of the channel is 22MHz. However, in practice, the effective bandwidth is 20MHz with a 2MHz gap used as a guard band (guard band) for sufficient attenuation along the edge bandwidth. It can be seen that the channels in the 2.4G band are rather crowded, and only 3 channels without interference, such as channel 1, channel 6, channel 11; alternatively, channel 2, channel 7, channel 13, etc.

Wherein, the 5G frequency band includes a 5.2G frequency band and a 5.8G frequency band. As shown in fig. 2, it is a schematic diagram of channel distribution in 5.2G frequency band. The 5.2G band contains 8 orthogonal 20MHz channels, and since

channels

52, 56, 60, and 64 are radar channels, these channels are avoided as much as possible in Wi-Fi networks. In other words, in practice, there are only 4 channels available for Wi-Fi signals in the 5.2G band, channel 36, channel 40, channel 44, and channel 48, respectively. It will be appreciated that these 4 channels may support one 80MHz bundle (i.e., channels 36-48 constitute channels having a channel width of 80 MHz), two sets of 40MHz bundles (i.e., channel 36 and channel 40 constitute channels having a channel width of 40MHz, or channel 44 and channel 48 constitute channels having a channel width of 40 MHz). Fig. 3 is a schematic diagram of channel distribution in the 5.8G band. The 5.8G band contains 5 orthogonal 20MHz channels. It is understood that 5 channels of the 5.8G band may be bundled into one 80MHz channel (i.e., channels 149-165 constitute channels having a channel width of 80 MHz), into two 40MHz channels (i.e., channels 149-153 constitute channels having a channel width of 40MHz, or channels 157-161 constitute channels having a channel width of 40 MHz). Wherein channel 165 supports only 20MHz bandwidth.

As shown in fig. 4, it is a schematic diagram of the distribution of 5G frequency band (including 5.2G frequency band and 5.8G frequency band) channels available for the Wi-Fi signal in china and the bundling relationship of each channel. Of these, there are only 13 channels at 20MHz, 6 channels at 40MHz, 3 channels at 80MHz, and 1 channel at 160 MHz. As can be seen, the channel resources are very limited.

In addition, as more and more terminals are provided in the home network or the working network, the types of services between the terminals are more and more abundant, and the requirement for data transmission between the terminals is also greater, so how to reduce the interference between the channels has become a research hotspot.

In order to reduce inter-channel interference, the terminal performs channel sounding before transmitting or receiving data, and then the terminal decides from which channel to transmit or receive data based on the channel sounding result. But the channel selected by the terminal may still overlap with the channels used by other links already existing in the periphery. In one case, if the terminal senses that other terminals on the same channel are also transmitting or receiving data, contention and backoff are performed based on the CSMA/CA mechanism. However, when the traffic on one of the links is heavy, the backoff and contention mechanism may increase the traffic access delay on the other link, resulting in poor traffic experience. For example, the end-to-end delay does not exceed 25ms in the absence of interference, but exceeds 100ms in the presence of interference (e.g., co-channel interference).

In another case, if the terminal does not perceive that other terminals in the same channel are also transmitting or receiving data, the data continues to be transmitted or received. In this case, the signal-to-noise ratio of the data received by the receiving end is low, packet loss occurs, and then the channel is switched. However, collisions may still occur with the switched channels. For example, terminal A selects the 149/80MHz channel to transmit data to terminal B, and terminal C also selects to transmit data to terminal D on the 149/80MHz channel. In addition, neither terminal a nor terminal C senses the other, and continues to transmit data without performing backoff. Then, the wireless signal transmitted by terminal a overlaps with the wireless signal transmitted by terminal C, resulting in a low signal-to-noise ratio of the wireless signal received by terminal B, and packet loss occurs. Then, when the terminal a determines that the opposite terminal has lost the packet, the channel detection is performed again and the channel is switched. Similarly, terminal C will perform channel sounding again and switch channels. It can be understood that the channel switched by terminal a may still collide with the channel switched by terminal C. Therefore, the existing method for selecting the channel based on the own channel detection result by the terminal needs to be improved.

To this end, in the management method for wireless channel resources provided in the embodiments of the present application, multiple terminals (generally, multiple terminals located within a certain range, and the distance between the multiple terminals is smaller than a certain threshold) cooperate to perform channel detection, and based on channel information detected by the multiple terminals, a channel for data transmission is determined for a service of a single terminal in the multiple terminals. It can be understood that, since the embodiment of the present application makes a decision based on the channel information detected by the multiple terminals within a certain position range, when a single terminal performs data transmission on the decided channel, interference of other terminals within the position range on the data transmission can be avoided, so that the time delay of the service on the terminal is reduced, and the user experience of the service is improved.

The technical scheme provided by the embodiment of the application is suitable for family scenes, working scenes and the like. As shown in fig. 5, a schematic diagram of a family scene is provided for the embodiment of the present application. In the home scenario, a plurality of terminals are included, which may be located in one room or in a plurality of rooms. In the management method of radio channel resources provided in the embodiments of the present application, one or more terminals may be selected from the terminals as the resource management device. The resource management apparatus is for centrally managing radio channel resources of other one or more terminals. The wireless channel resource provided by the embodiment of the present application includes, for example, a channel resource corresponding to a Wi-Fi signal. The channel resources corresponding to the Wi-Fi signals include, for example, a 2.4G frequency band, a 5G frequency band, and other frequency bands in the future. For example, a terminal (e.g., a smart socket, a refrigerator, a smart speaker, etc.) that is powered on for a long time (or referred to as a normal power on) in a home network may be selected, or a wireless Access Point (AP) device (e.g., a router, etc.) may be selected, or a terminal (e.g., a television) located in a middle position of a room may be selected, or a terminal (e.g., a mobile phone, a tablet computer, etc.) with a variable position may be selected as a resource management device. The embodiment of the present application does not limit the selection of the resource management device.

In other words, each resource management device and one or more terminals managed by the resource management device in the home scenario form one device group. And the resource management equipment of each equipment group maintains the channel information reported by each terminal in the equipment group in a centralized manner. When the terminals in the device group need to establish a wireless link to transmit data, a suitable channel is determined for transmitting data based on the channel information managed by the resource management device of the device group. Therefore, according to the technical scheme provided by the embodiment of the application, the channel is not selected based on the channel information detected by the single terminal, but is selected based on the overall channel information of the equipment group where the terminal is located, so that the interference on the data transmission of the terminal when other terminals of the equipment group perform data transmission is reduced, the time delay of a service is reduced, and the user experience of the service on the terminal is improved.

Here, taking a device group established in a home scenario as an example, the detailed description will be made on the procedures of establishing the device group, managing the channel resources of each terminal by the resource management device, and selecting the channel when the terminal performs data transmission.

As shown in fig. 6, a channel resource management system provided in this embodiment of the present application includes multiple terminals. Wherein the plurality of terminals includes at least two managed devices 100 and at least one resource management device 200. Wherein, at least two managed devices 100 and at least one resource management device 200 are a device group.

The channel resource management system including a router, a mobile phone, a smart speaker, a PC, and a tv will be described as an example. In some examples, a router may be selected as the resource management device 200, and the managed device 100 may include a cell phone, a smart box, a PC, and a television. Of course, in some other examples, a smart speaker with long power-on may also be selected as the resource management device in the wireless channel resource management system, or a mobile phone with a flexible location may also be selected as the resource management device in the wireless channel resource management system. In other examples, the channel resource management system may include two or more resource management devices 200. The embodiment of the application does not limit the selection and the number of the resource management devices.

For example, the managed device 100 and the resource management device 200 in the embodiment of the present application may be, for example, a mobile phone, a tablet computer, a Personal Computer (PC), a Personal Digital Assistant (PDA), a netbook, a wearable terminal (e.g., a smart watch, a bracelet, etc.), an Augmented Reality (AR) device, a Virtual Reality (VR) device, an in-vehicle device, a smart screen, a refrigerator, a lighting device (e.g., a ceiling lamp, a desk lamp, etc.), an air conditioner, a smart socket, a router, a projector, etc., and the embodiment of the present application does not particularly limit the specific form of the managed device 100 and the resource management device 200.

Fig. 7 is a schematic diagram of the structure of the managed device 100. The managed device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a Universal Serial Bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a button 190, a motor 191, an indicator 192, a camera 193, a display screen 194, a Subscriber Identity Module (SIM) card interface 195, and the like. It should be understood that the interface connection relationship between the modules according to the embodiment of the present invention is only illustrative, and does not constitute a structural limitation on the managed device 100. In other embodiments of the present application, the managed device 100 may also adopt different interface connection manners or a combination of multiple interface connection manners in the above embodiments. In addition, the illustrated structure of the embodiment of the present invention does not constitute a specific limitation to the managed apparatus 100. In other embodiments of the present application, the managed device 100 may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 110 may include one or more processing units, such as: the processor 110 may include an Application Processor (AP), a modem processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), etc. The different processing units may be separate devices or may be integrated into one or more processors.

A memory may also be provided in processor 110 for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may hold instructions or data that have just been used or recycled by the processor 110. If the processor 110 needs to reuse the instruction or data, it can be called directly from the memory. Avoiding repeated accesses reduces the latency of the processor 110, thereby increasing the efficiency of the system.

The wireless communication function of the managed device 100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like.

The

antennas

1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the managed device 100 may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a solution including 2G/3G/4G/5G and the like wireless communication applied on the managed device 100. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a Low Noise Amplifier (LNA), and the like. The mobile communication module 150 may receive the electromagnetic wave from the antenna 1, filter, amplify, etc. the received electromagnetic wave, and transmit the electromagnetic wave to the modem processor for demodulation. The mobile communication module 150 may also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the same device as at least some of the modules of the processor 110.

The modem processor may include a modulator and a demodulator. The modulator is used for modulating a low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used for demodulating the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then passes the demodulated low frequency baseband signal to a baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and then passed to the application processor. The application processor outputs a sound signal through an audio device (not limited to the speaker 170A, the receiver 170B, etc.) or displays an image or video through the display screen 194. In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be provided in the same device as the mobile communication module 150 or other functional modules, independent of the processor 110.

The wireless communication module 160 may provide solutions for wireless communication applied to the managed device 100, including Wireless Local Area Networks (WLANs) (e.g., wireless fidelity (Wi-Fi) networks), bluetooth (bluetooth, BT), global Navigation Satellite System (GNSS), frequency Modulation (FM), near Field Communication (NFC), infrared (IR), and the like. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, performs frequency modulation and filtering on electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, perform frequency modulation and amplification on the signal, and convert the signal into electromagnetic waves through the antenna 2 to radiate the electromagnetic waves.

In some embodiments, antenna 1 of the managed device 100 is coupled to the mobile communication module 150 and antenna 2 is coupled to the wireless communication module 160 so that the managed device 100 can communicate with networks and other devices through wireless communication techniques. The wireless communication technology may include global system for mobile communications (GSM), general Packet Radio Service (GPRS), code Division Multiple Access (CDMA), wideband Code Division Multiple Access (WCDMA), time division code division multiple access (time-division multiple access, TD-SCDMA), long Term Evolution (LTE), BT, GNSS, WLAN, NFC, FM, and/or IR technologies, etc. The GNSS may include a Global Positioning System (GPS), a global navigation satellite system (GLONASS), a beidou satellite navigation system (BDS), a quasi-zenith satellite system (QZSS), and/or a Satellite Based Augmentation System (SBAS).

The managed device 100 implements display functions via the GPU, display screen 194, and application processor, among other things. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and an application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 110 may include one or more GPUs that execute program instructions to generate or alter display information.

The managed device 100 may implement a photographing function through the ISP, the camera 193, the video codec, the GPU, the display screen 194, and the application processor, etc.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to extend the storage capability of the managed device 100. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. For example, files such as music, video, etc. are saved in an external memory card.

The internal memory 121 may be used to store computer-executable program code, which includes instructions. The internal memory 121 may include a program storage area and a data storage area. The storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like. The storage data area may store data (e.g., audio data, phone book, etc.) created during use of the managed device 100, and the like. In addition, the internal memory 121 may include a high-speed random access memory, and may further include a nonvolatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash memory (UFS), and the like. The processor 110 executes various functional applications of the managed device 100 and data processing by executing instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor.

In an embodiment of the present application, the internal memory 121 may be used to store channel information detected by the managed device 100.

The managed device 100 may implement audio functions via the audio module 170, speaker 170A, microphone 170B, microphone 170C, headphone interface 170D, and application processor, among others. Such as music playing, recording, etc.

It should be noted that the resource management device 200 may refer to the structure of the managed device 100, and the resource management device 200 may include more or less components than the managed device 100, or combine some components, or split some components, or arrange different components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware. The structure and specific form of the resource management device 200 will not be further described here.

Here, a channel resource management system in fig. 6 including a router, a mobile phone, a smart speaker, a PC, and a television is taken as an example for description, and the technical solution provided in the embodiment of the present application is described in detail with reference to the accompanying drawings.

1. Establishment of a device group

Taking the router as the resource management device and the mobile phone as the managed device as an example, the process of adding the mobile phone into the device group where the router is located is introduced. As shown in fig. 8, a schematic flow chart of adding a mobile phone to a device group where a router is located is shown, where the flow includes:

s801, the router sends a broadcast message A, wherein the broadcast message A comprises information such as the identification of the first group and/or the identification of the router. Correspondingly, the mobile phone receives the broadcast message A sent by the router.

In some embodiments, the factory setting of the router is default to the resource management device, so that the router can automatically send the broadcast message a after being started. Alternatively, the user may also manually set the router as the resource management device, for example, a switch control is set in a setting interface of the router, so as to start the function of the router as the resource management device. Then, the router automatically transmits the broadcast message a after being set as the resource management device. And the other terminals which are not set as the resource management device default to the managed device. For example, as shown in FIG. 9, a configuration interface 901 of the router is logged in for the user via a PC. In the interface 903 corresponding to the wireless basic setting option 902, when the user sets the resource management device option 904 to "on", the router is set as a resource management device.

In other embodiments, the settings for each terminal include a flag bit. When the flag satisfies a predetermined condition (e.g., a first value, or greater than or equal to a certain threshold), the terminal is set as a resource management device. When the flag bit does not satisfy a preset condition (e.g., is a second value, or is less than a certain threshold), the terminal is set as a managed device. The value of the flag bit may be set by default when the terminal leaves factory, and optionally, the user may manually modify or set the value of the flag bit. For example, the user may perform settings on the terminal, or the terminal may be set by a control device of the terminal.

In still other embodiments, the user may also set up multiple terminals in the access home network in a unified manner through a specific application (e.g., a smart home application). For example, the user may select one or more of the plurality of terminals to be set as the resource management device. Then, the terminal that is not set as the resource management device is marked as a managed device. For another example, the user sets different flag bits for the resource management device and the managed device.

A router as a resource management device may periodically broadcast a message a for notifying surrounding terminals of the identifier of the router, and the identifier of the device group (denoted as a first group) in which the router is located. The identifier of the router is, for example, a Media Access Control (MAC) address, an ID (also referred to as an International Mobile Equipment Identity (IMEI) or a serial number, etc.), and the like. The identifier of the first group may be a number or a character string, or may be an identifier of a router, etc. The embodiment of the present application does not limit the specific form of the identifier of the first group.

In other examples, the router may also send broadcast message a when it searches for new terminals around it, so that the new terminals can determine whether to join the first group. Alternatively, the router may also send the broadcast message a according to a user instruction (for example, when the user restarts the router, or the user instructs the resource management device to refresh the device group through the smart home application). Still alternatively, the router may also send the broadcast message a when receiving a request from a terminal of the first group to establish a wireless link (e.g., a P2P link), so that the router updates the maintained channel information of each channel and subsequently decides the most suitable channel for the newly established wireless link according to the latest channel information. Alternatively, the router may also send the broadcast message a when detecting that the location of the terminal in the first group has changed, so that the terminal with changed location can determine whether to stay in the first group. Or, when the router detects that the signal strength of the wireless signal transmitted by the terminal receiving the first group is lower than the preset threshold, the router transmits the broadcast message A, so that the terminal can conveniently determine whether to remain in the first group. That is, the embodiment of the present application does not limit the timing when the router sends the broadcast message a.

S802, the mobile phone determines to be added into the first group according to the Received Signal Strength Indication (RSSI) of the received broadcast message A.

It will be appreciated that the RSSI of the broadcast message a can be used to assess the signal quality of the wireless link between the handset and the router. Obviously, the mobile phone is added with the resource management equipment capable of establishing a high-quality wireless link with the mobile phone, which is beneficial to the communication between the mobile phone and the subsequent resource management equipment when the mobile phone is managed by the subsequent resource management equipment. In other words, when the mobile phone confirms that the signal strength of the RSSI indication of the broadcast message a is greater than or equal to the preset threshold, it is determined to join the first group, and then step S803 is performed. And when the mobile phone confirms that the received signal strength of the RSSI indication of the broadcast message A is smaller than a preset threshold value, determining not to join the first group, and ignoring the broadcast message A.

In some embodiments, the handset may receive a broadcast message a sent by a plurality of resource management devices (for example, M, where M is an integer greater than 1), and the handset may select, according to the signal strength indicated by the RSSI, a device group to which M1 resource management devices of the plurality of resource management devices belong, where M1 is an integer greater than 0 and less than or equal to M. Optionally, the mobile phone may further select, according to information such as a device type, a device feature, and a device location of the resource management device, a device group where M1 resource management devices of the multiple resource management devices are located. For example, a terminal that is powered on for a long time (e.g., a smart socket, a refrigerator, a smart box, etc.) is preferentially selected, or an AP device (e.g., a router, etc.) is preferentially selected, or a terminal located in a middle position of a room (e.g., a television set) is selected, or a terminal whose position is changeable (e.g., a mobile phone, a tablet computer, etc.) is selected as a resource management device. Of course, the handset may also select a device group in which M1 resource management devices of the multiple resource management devices belong, based on a combination of any of the signal strength indicated by the RSSI, the device type, the device characteristics, the device location, and the like. The embodiment of the present application does not limit the specific manner of selecting and joining the device group in which the resource management device is located.

And S803, the mobile phone sends a request message B for joining the first group to the router, wherein the request message B carries the identification, the authentication information and the like of the mobile phone. Correspondingly, the router receives a request message B of the mobile phone.

The identification of the mobile phone includes, for example, a MAC address or an ID (also referred to as IMEI or serial number) of the mobile phone. The authentication information of the mobile phone includes, for example, account information of the mobile phone login, or an identifier of a Wi-Fi network to which the mobile phone is connected.

S804, the router determines that the mobile phone is allowed to join the first group, and sends a confirmation message C to the mobile phone. Correspondingly, the mobile phone receives the confirmation message C.

Illustratively, the router determines whether to allow the mobile phone to join the first group according to the authentication information carried in the request message B sent by the mobile phone. For example, when it is determined that the account registered by the mobile phone is the same as the account registered by the router, or that the account registered by the mobile phone and the account registered by the router belong to the same group (for example, a home account), or that the account registered by the mobile phone and the account registered by the router establish a correlation relationship, or that the mobile phone and the router are connected to the same Wi-Fi network, the router determines to allow the mobile phone to join a device group, i.e., a first group, in which the router is located. The router records that the mobile phone is a member of the first group and returns a confirmation message C to the mobile phone. Then, after receiving the confirmation message C, the mobile phone also records its own resource management device as a router.

It is understood that other managed devices in fig. 6 may also join the device group, i.e., the first group, in which the router is located by the same or similar method. From this, establish the first group, and the first group includes router, cell-phone, smart audio amplifier, PC and wisdom screen. Wherein the router is a resource management device of the first group. It is easy to understand that since each terminal in the first group accesses the router through a wireless signal and RSSI received by the router is less than or equal to the preset threshold, each terminal in the first group is located near the router, and each terminal in the first group is usually located within a certain location range.

It should be noted that, the first group is described as including one resource management device, and in some other embodiments, the first group may also include two or more resource management devices. In some examples, when two or more resource management devices are included in the first group, one of the resource management devices may be a primary device, the other resource management device may be a secondary device, and channel information may be synchronized between the primary device and the secondary device. In other words, the secondary device may act as a backup to the primary device. When the main device is powered off or fails, the auxiliary device may take over the main device to continue working, for example, receive channel information reported by each terminal in the first group, and decide the most suitable channel for transmitting data for any terminal in the first group.

2. The resource management equipment maintains the channel information of each channel based on the channel information reported by each terminal in the equipment group

Still take the first group including the router, the mobile phone, the smart speaker, the PC, and the smart screen, and the router is the resource management device of the first group as an example, the process of the router to centrally manage the channel information corresponding to each terminal in the first group is introduced.

In some examples, after a certain terminal (e.g., a mobile phone) joins the first group, the terminal performs channel detection, and reports information of each channel detected by the terminal to a resource management device (i.e., a router) in the first group according to a channel detection result, so that the resource management device can centrally manage the information of each channel. In another example, after a certain terminal joins the first group, channel detection may not be performed first, and when the resource management device indicates all terminals in the first group or a specific terminal to report channel information, channel detection is performed, and information of each channel is reported. Thus, the resource management devices (i.e., routers) in the first group maintain information for the respective channels. Illustratively, the resource management device maintains a channel usage information table, and the subsequent resource management device updates the channel usage information table according to the channel information reported by each terminal in the first group. Here, a description will be given taking an example in which the resource management apparatus maintains the channels of the respective channels in a manner of using the channel use information table.

The channel use information table maintained in the resource management device is used to characterize the use condition of each channel, that is, includes channel information of each channel. The channel information of each channel includes, for example, information of a terminal residing on each channel (referred to as a residing terminal for short), service information of each residing terminal, RSSI corresponding to the residing terminal, duty cycle of each channel, and the like. Wherein the information of the camped terminals includes the identities and the number of the terminals camped on each channel (wherein the number is optional). Here, the identification of the terminal on each channel may be, for example, a MAC address, an ID, or the like of the terminal. It should be further noted that, here, the identifier of the terminal may uniquely specify a specific terminal, or the identifier of the terminal may not uniquely specify a specific terminal, and the identifier of the terminal is not limited in this embodiment of the application. The service information of each resident terminal includes any one or any several items of the type, the main frequency, the bandwidth and the duty ratio of each service performed by each terminal.

Optionally, the channel information of each channel may further include a timestamp of each channel information, and the timestamp may be used to mark an update time of each channel information, or identify a validity period of each channel information, or identify an aging time of each channel information. It will be appreciated that the time stamps for the various channels may be different. Then, the resource management device may request each terminal to report the channel information of the specific channel (or all channels) again according to the timestamp of each channel, update the channel information of the specific channel based on the channel information reported again by each terminal, and update the timestamp of the specific channel, where a specific update process may refer to a detailed description later.

Optionally, the channel usage information table may further include one or more of an identifier of the first group (or an identifier of the resource management device), the number of managed devices of the first group, and an identifier of each managed device. Of course, the channel usage information table may also include other information related to the channel, and the content included in the channel usage information table is not limited in this embodiment.

For example, as shown in table one, an example of a channel usage information table provided in the embodiments of the present application is provided.

Watch 1

As can be seen from the table i, the resource management device summarizes the channel information reported by each terminal in the first group according to different terminals, and when any terminal in the subsequent first group needs to establish a wireless link to transmit data, a decision can be made based on the channel information corresponding to the terminal and the opposite terminal. For example, the router analyzes the channel information reported by the mobile phone to know that: the mobile phone can scan surrounding terminals as a smart sound box and a smart screen, wherein the smart sound box is conducting business 1 on a channel 149, and the smart screen is conducting business 2 on a channel 153. If the mobile phone establishes a wireless link with another terminal (such as a PC) for data transmission, and if the channel 149 or the channel 153 is selected for transmitting or receiving data, the smart sound box and the smart screen will cause the opponent mechanism to be in same frequency interference. If the handset selects channel 157 adjacent to channel 153 to transmit or receive data, service 2 of the smart screen will cause the handset to become adjacent channel interference. Therefore, when the mobile phone establishes a wireless link with other terminals for data transmission, in the 5G frequency band, the channel 161 and the channel 165 are preferentially selected, and the channel 157 is secondarily selected. Similarly, the router analyzes the channel information reported by the PC to know that: when the PC establishes a wireless link with other terminals for data transmission, in the 5G frequency band, the channel 157, the channel 161 and the channel 165 are preferentially selected, and the channel 153 is secondarily selected. When the mobile phone and the PC need to transmit data, channel information corresponding to the mobile phone and the PC is synthesized, and in the 5G frequency band, the channel 161 and the channel 165 are preferentially selected, and the channel 157 is selected again.

For example, as shown in table two, there is provided another example of a channel usage information table according to the embodiment of the present application.

Watch two

As can be seen from table two, the resource management device summarizes, according to different channels, the interference information (interfering terminal, interference service, and the like) on each channel according to the channel information reported by each terminal in the first group, and when any terminal in the subsequent first group needs to establish a wireless link to transmit data, a decision can be made based on the interference information of each channel. For example, if the handset establishes a wireless link with another terminal (e.g., a PC) for data transmission, there are terminals (smart speakers and smart screen) interfering with the handset on both channel 149 and channel 153. If the channel 149 or the channel 153 is selected to transmit or receive data, the smart sound box and the smart screen can cause the opponent mechanism to be in same frequency interference. If the handset selects channel 157 adjacent to channel 153 to transmit or receive data, service 2 of the smart screen will cause the handset to become adjacent channel interference. Therefore, when the mobile phone establishes a wireless link with other terminals for data transmission, in the 5G frequency band, the channel 161 and the channel 165 are preferentially selected, and the channel 157 is secondarily selected. Similarly, when the PC establishes a wireless link with another terminal for data transmission, in the 5G frequency band, the channel 157, the channel 161, the channel 165 and the secondary channel 153 are preferentially selected. Therefore, in summary, when the mobile phone and the PC need to transmit data, the channel 161 and the channel 165 are preferentially selected and the channel 157 is selected again in the 5G frequency band.

It should be noted that, both the first table and the second table are examples of a channel usage information table maintained by the resource management device, and the content and the format of the channel usage information table maintained by the resource management device are not limited in this embodiment. In addition, the channel use information table maintained by the resource management device may also include channel information detected by the resource management device.

As shown in fig. 10, a schematic view of a process of a resource management device (e.g., a router) requesting a managed device to report channel information is shown, where the process includes:

s1001, the router determines a target channel needing to be updated.

The router may determine the target channel to be updated according to a preset rule a. Wherein, the preset rule A comprises: the channel information of all channels in the channel usage information table is periodically updated, or the channel information of all channels in the channel usage information table is updated according to the aging time of the channel usage information table, or the channel information of each channel in the channel usage information table is periodically updated, or the channel information of each channel is respectively updated according to the aging time of each channel in the channel usage information table, and the like. It should be noted that, in the embodiment of the present application, specific contents of the preset rule a are not limited.

For example, the router may set an aging time for each channel in the channel usage information table. The aging time may be the same or different for each channel. In one example, the router may determine characteristics of each channel based on channel information prior to each channel, and set different aging times for different channels based on different characteristics. For example, a faster aging time is set for a channel whose channel variation is fast, and a slower aging time is set for a channel whose channel variation is slow. That is, the channel that changes faster has a shorter update period and the channel that changes slower has a longer update period. Therefore, the accuracy of the channel information of each channel maintained by the router is improved, and the frequent detection of the channel and the frequent uploading of the channel information by the managed equipment are reduced.

Then, the router may monitor the aging time of each channel in the information table in real time or periodically (e.g., with a period of 5 ms). In some examples, the router may determine that the channel for which the aging time expires is the target channel that needs to be updated. In other words, the target channel contains a part of the channels in the channel use information table. In other examples, the router may also determine that all channels need to be updated after monitoring the channels with aging time expired, that is, the target channel includes all channels in the channel usage information table (e.g., all channels in the 5G band, and/or all channels in the 2.4G band).

As another example, the router may also set an aging time for the channel usage information table. That is, when the aging time of the channel use information table has expired, the router requests updating of the channel information of all channels in the channel use information table. I.e., the target channel contains all channels (e.g., all channels in the 5G band, and/or all channels in the 2.4G band).

S1002, the router sends a request message D, and the request message D is used for requesting to report the channel information of the target channel.

Accordingly, the managed devices in the first group (i.e., terminals other than the router, such as a cell phone, a smart speaker, a PC, and a smart screen) receive the request message D.

Illustratively, when the target channel includes the partial channels in the channel use information table, the request message D includes the identifications of the partial channels (i.e., the identifications of the target channel). The channel identifier may include, for example, a channel number, a channel center frequency, a channel bandwidth, and the like. When the target channel includes all channels, the request message D may not include the identifier of the target channel. Optionally, when the request message D does not include the identifier of the target channel or includes specific content, the request message D is used to indicate that channel information of all channels is reported.

In some embodiments of the present application, the router may request all terminals in the first group to report channel information of the target channel. Then, the request message D may be a broadcast message. That is, all terminals in the first group may receive the request message D. In other embodiments, the router may also designate some terminals in the first group to report the channel information of the target channel. Then, the request message D may be a multicast message or a unicast message. Wherein, the multicast message or unicast message carries the identifier of the appointed terminal. For example, the router may specify that the long powered-on terminals in the first group report channel information of the target channel. Alternatively, the router may select a terminal at a specific location to upload channel information of the target channel according to the location information of each terminal in the first group. For example, when there are multiple terminals close to each other in the first group, the router may select one of the terminals to report the channel information of the target channel, and the embodiment of the present application does not limit which terminals in the first group are selected by the router to report the channel information of the target channel.

S1003, the managed devices in the first group perform channel detection.

The managed devices in the first group may perform full channel sounding, that is, perform channel sounding for all channels (e.g., all channels in the 5G band, and/or all channels in the 2.4G band). Alternatively, channel sounding may be performed only for a specific channel (i.e., a part of channels in the channel use information table). It should be noted that, when the target channel includes all channels, the terminals in the first group perform channel sounding for all channels. When the target channel includes a specific channel, the terminals in the first group may perform channel sounding for all channels, or may perform channel sounding only for the specific channel.

It should be noted that the router may also perform channel probing, and the subsequent router may also modify the channel usage information table according to the information of the route probing. Of course, the router may perform channel probing by other terminals in the first group without performing channel probing.

In this embodiment of the application, the terminal may perform channel detection by using Energy Detection (ED), carrier Sense (CS), or energy carrier hybrid detection, and the specific channel detection method may refer to the prior art and is not described herein again.

S1004, the managed equipment in the first group reports the channel information of the target channel to the router.

Correspondingly, the router receives the channel information of the target channel reported by the managed device in the first group.

S1005, the router updates the channel information of the target channel according to the reported channel information of the target channel.

Illustratively, the router updates the relevant content in the channel usage information table according to the content and format of the maintained channel usage information table and the channel information of the target channel reported by other terminals. For example: if the router maintains the channel use information table as shown in table one, the router needs to update the information of the target channel corresponding to each terminal. In addition, the router also updates the time stamp in the channel usage information table, such as the aging time of the channel usage information table or the aging time corresponding to the target channel in the channel usage information table. For another example, if the router maintains the channel use information table shown in table two, the router needs to update information of the interfering terminal on the target channel. In addition, the router also updates the time stamp in the channel usage information table, such as the aging time of the channel usage information table or the aging time corresponding to the target channel in the channel usage information table.

It should be noted that fig. 10 illustrates a process in which the resource management device actively requests other terminals in the device group to report channel information. It is to be understood that, in some other embodiments, other terminals in the device group may also actively report the channel information to the resource management device.

The description will be given by taking the case that the mobile phone actively reports the channel information to the router. As shown in fig. 11, a schematic view of a process of reporting channel information to a router by a mobile phone is shown, where the process includes:

s1101, the mobile phone determines a target channel needing to be updated.

The mobile phone may determine whether channel information needs to be reported and which channels of channel information need to be reported (i.e. which channels are included in the target channel) according to a preset rule B. The preset rule B may include: the mobile phone reports the channel information of all the channels periodically, or reports the channel information of each channel periodically. The periods corresponding to the channels may be the same or different. The preset rule B may further include reporting channel information of all channels when it is detected that a certain condition is satisfied, or reporting channel information of a specific channel. Wherein, the detecting that a certain condition is satisfied includes: the mobile phone detects that data needs to be sent or received, or the mobile phone receives the request message D (for requesting the mobile phone to report channel information of the target channel) sent by the router, and the like.

In some embodiments, the handset may periodically update the channel information for all channels. That is, in each period, the handset determines to update the channel information of all channels, and the target channel includes all channels (e.g., all channels in the 5G band, and/or all channels in the 2.4G band). In some examples of this embodiment, the handset periodically updates the channel information for all channels when idle (when there is no data transfer task). The mobile phone suspends the periodic updating of the channel information of all the channels when executing the data transmission task, and the periodic updating of the channel information of all the channels is carried out when the mobile phone ends the data transmission task. In other examples of this embodiment, the handset periodically updates the channel information for all channels, either when idle or when performing data transfer tasks.

In other embodiments, the handset may set different update periods for different channels. For example, the mobile phone may determine the characteristics of each channel according to the channel information before each channel, and then set different update periods for different channels according to different channel characteristics. For example, a short update period is set for a channel with a fast channel change, so as to acquire changed channel information in time; and setting a longer updating period for the channel with slower channel change so as to avoid frequently carrying out useless channel detection and frequently uploading useless channel information. In this embodiment, the target channel is the channel that needs to be updated each time.

It should be noted that other terminals (smart speakers, PCs, and smart screens) in the first group may also actively report channel information to the router. The specific rules adopted by the other terminals (the intelligent sound box, the PC and the intelligent screen) in the first group can be the same as or different from the rules adopted by the mobile phone.

And S1102, the mobile phone performs channel detection.

When the target channel comprises all channels, the terminals in the first group perform channel detection of the full channel. When the target channel includes a specific channel, the terminals in the first group may perform channel sounding for all channels, or may perform channel sounding only for the specific channel.

S1103, the mobile phone reports the channel information of the target channel to the router.

S1104, the router updates the channel information of the target channel.

The router updates the related content according to the channel information of the target channel reported by other terminals according to the format and content of the maintained channel usage information table (for example, refer to the above table one and table two). In addition, the router also updates the time stamp in the channel usage information table, such as the aging time of the channel usage information table or the aging time corresponding to the target channel in the channel usage information table.

Fig. 11 illustrates a scenario in which a mobile phone actively performs channel detection and reports channel information to a router. In some other scenarios, there is also service information (e.g. service identification or service type, channel information occupied by the service, etc.) of the transmission interaction itself between the terminals of the first group (including between the managed devices, and between the managed device and the resource management device). For example, the service information of the terminal is sent to the trusted terminal. The trusted terminals may for example be logging in to the same account or to accounts belonging to the same group, e.g. a family group, etc. That is to say, the mobile phone may also receive channel information sent by another terminal (for example, information about services executed by another terminal), and then the mobile phone may also report the received channel information to the router separately, or the mobile phone may also report the received channel information to the router together with channel information obtained by performing channel probing by the mobile phone itself.

The router serving as the resource management device in the first group maintains the latest channel information reported by each terminal in the first group, and when any terminal in the first group needs to establish a wireless link with other terminals, the router can select the most appropriate channel for data transmission based on the channel use information table maintained by the router.

3. Selecting a channel for a terminal of a first group for transmitting data based on channel information maintained by a resource management device of the first group

Taking the data transmission of the target service which is required to be executed by the mobile phone and the PC in the first group as an example, the process of deciding the channel based on the channel information maintained by the resource management device in the first group is introduced.

In some embodiments of the present application, when the mobile phone in the first group and the PC need to perform data transmission of a target service, the mobile phone or the PC applies for a channel to the router, and the router determines a channel for the mobile phone or the PC based on the maintained channel information. For example, as shown in fig. 12, a schematic flowchart of a method for a router to select a transmission channel for a mobile phone and a PC based on channel information maintained by the router includes:

s1201, finding the PC by the mobile phone.

In a specific scenario, when the handset needs to perform data transmission of a target service, the handset broadcasts a discovery request frame for discovering surrounding terminals. After receiving the discovery request frame broadcast by the mobile phone, the PC may also broadcast a discovery response frame, where the discovery response frame carries an identifier of the PC. When the mobile phone receives the discovery response frame sent by the PC, the identity of the PC can be acquired. For example, when the mobile phone operates a "share" (or "forward", etc.) control in an interface of an application (e.g., a gallery), the mobile phone starts to search for surrounding devices and discover a PC. In this example, the mobile phone first determines a target service (i.e., sharing a picture), and then acquires an identifier of an opposite terminal (i.e., a PC).

In another specific scenario, the mobile phone starts a Wi-Fi scanning function in the system setting, and is used for discovering surrounding terminals and discovering PCs. After the user selects the PC, the user operates the mobile phone to instruct the mobile phone to execute a target service (such as sharing pictures). The process of finding the PC by the mobile phone is the same as the above example, and is not described here again. In this example, the mobile phone first acquires the identifier of the opposite terminal (i.e., PC), and then acquires the information of the target service.

In yet another specific scenario, the other party may also be automatically discovered when the handset and the PC are close together. In one example of this scenario, after the handset and PC automatically discover each other, a specific target service (e.g., a voice-casting service, a screen-casting service, etc.) may be executed by default. It should be noted that, in the embodiment of the present application, the process of discovering the mobile phone and the PC is not limited in detail. In addition, it should be noted that the wireless connection between the mobile phone and the PC is not established temporarily during the execution of this step.

S1202, the mobile phone sends a request message E for applying for the channel to the router. Accordingly, the router receives the request message E.

The request message E carries the identifier of the mobile phone and the identifier of the PC. The identification of the mobile phone includes, for example, a MAC address, an ID (also referred to as IMEI, serial number, or the like) of the mobile phone, or a login account. The identification of the PC includes, for example, a MAC address, an ID (also referred to as IMEI, serial number, or the like) of the PC, a login account, or the like.

Optionally, the request message E may also carry a service type of the target service or an identifier of the target service. The service type of the target service includes a delay sensitive service or a high bandwidth service. Alternatively, the service type of the target service includes a voice (voice) service, a video (video) service, a best-effort (best-effort) service, a background (background) traffic service, and the like. Among them, voice service, generally transmitting voice over internet protocol (VoIP) traffic, is most sensitive to delay and has the highest priority. Video traffic is also a delay sensitive type with priority lower than voice traffic and higher than the other two (best effort traffic and background traffic). Best effort traffic, such as data traffic for web page access, etc., has some delay requirements but is less sensitive. Background traffic is least sensitive to delay requirements, such as transmission of documents, traffic of print jobs. It can be understood that, the capacities of the services of different service types to occupy the air interface are different, and generally, the capacity of the service with a high priority to occupy the air interface is greater than that of the service with a low priority.

In addition, the target services in the embodiment of the present application include, but are not limited to, a voice/video call service, an audio/video playing service, a screen/sound projecting service, a picture/file sharing service, and the like.

And S1203, the router configures a target channel for data transmission of the target service between the mobile phone and the PC according to the mobile phone identifier and the PC identifier carried in the request message E and a channel use information table maintained by the router.

In a specific implementation, the router may respectively search the channel information of the channels around the mobile phone and the channel information of the channels around the PC from the channel usage information table according to the identifier of the mobile phone and the identifier of the PC carried in the request message E. The channel information of the channel around the mobile phone includes channel information reported by the mobile phone, or channel information of an interference channel of the mobile phone, or channel information of other channels excluding the interference channel of the mobile phone. The interference channel of the mobile phone means that there are other terminals on the channel that will cause interference (co-channel interference or adjacent channel interference, etc.) to the opponent mechanism. The channel information of the channels around the PC includes channel information reported by the PC, or channel information of an interference channel of the PC, or channel information of other channels excluding the interference channel of the PC. The interference channel of the PC means that other terminals on the channel will interfere with the PC (co-channel interference or adjacent channel interference, etc.). Then, configuring a target channel for a target service to be performed by the mobile phone and the PC based on the channel information of the channel around the mobile phone and the channel information of the channel around the PC, wherein the configured information includes: the main frequency, the bandwidth and other information of the target service.

The channel information maintained in the channel usage information table described above includes, but is not limited to, information of terminals residing on respective channels (referred to as "residing terminals"), service information of each residing terminal, RSSI corresponding to the residing terminals, and the like. Wherein the information of the camped terminals includes the identities and the number of the terminals camped on each channel (wherein the number is optional). The service information of each resident terminal includes any one or any several items of the type, the main frequency, the bandwidth and the duty ratio of each service performed by each terminal. A packetization model for each service may be determined based on the type of service on which the terminal resides on each channel, where the packetization model includes persistent packetization and intermittent packetization. If the packet sending model is continuous packet sending, the service occupies the channel for a long time, and the time for occupying the channel can be determined according to the whole size of the data packet. If the packet sending model is intermittent packet sending, the data packets of other services can be transmitted in the interval when the service does not send the data packets. The throughput of each channel may be determined based on the traffic type, dominant frequency, bandwidth, duty cycle, etc. of the terminal on each channel. The router can select a target channel for transmitting data of a target service for the mobile phone and the PC by combining channel information such as throughput, duty ratio, RSSI on each channel and the like of each channel, including selecting a center frequency, a bandwidth and the like of the target channel. That is, the configuration information of the target channel includes a center frequency, a bandwidth, and the like of the target channel.

Optionally, the router may also determine the target channel together with the service type of the target service or the specific target service, so as to perform data transmission of the target service between the mobile phone and the PC. It can be understood that different priorities correspond to different service types, and the different priorities correspond to different air interface preemption capabilities. For example, the priority of the traffic types is ranked from high to low as: voice traffic type > video traffic type > best effort traffic type > background traffic type. In other specific implementations, the router may further select a target channel for transmitting data of the target service for the mobile phone and the PC, according to the priority of the target service and the priority of the services performed by each channel.

It should be noted that, in the embodiments of the present application, the router is not limited to a specific method and the like adopted in the process of configuring a target channel for a mobile phone and a PC based on channel information in a channel usage information table.

S1204, the router sends the configuration information of the target channel to the mobile phone, and updates the channel use information table. Correspondingly, the mobile phone receives the configuration information of the target channel sent by the router.

The configuration information of the target channel comprises a central frequency point and a bandwidth of the transmission channel. It will be appreciated that the router needs to update the channel usage information table maintained by the router based on the configuration information of the target channel. For example, information of a terminal residing on the target channel, related information of the target service, a timestamp corresponding to the target channel, and the like are updated.

And S1205, the mobile phone performs data transmission of the target service with the PC on the target channel.

The handset establishes a wireless link (e.g., a P2P link) with the PC, and the link uses the target channel for data transmission.

In summary, the plurality of terminals in the first group cooperatively perform channel detection, and report the detected channel information to the resource management device of the first group, and the resource management device maintains the global channel information of the first group. Subsequently, when the terminals of the first group need to establish a wireless link (for example, the mobile phone and the PC need to establish a wireless link), the resource management device determines the most suitable channel for the terminals to establish a wireless link to transmit data based on the maintained global channel information of the first group. It can be understood that, because the channel is a channel decided for the mobile phone and the PC based on the global channel information of the first group, the present application can avoid that other terminals in the first group collide with the current data transmission (i.e., data transmission between the mobile phone and the PC), thereby improving the utilization rate of channel resources and improving the data transmission efficiency of the channel.

In addition, in the embodiment of the present application, when the resource management device maintains the first group of global channel information, an association between each channel and the service information of the camped terminal is also established (as shown in table one and table two, the channel information of each channel includes the service information of the camped terminal, such as a service identifier or a service type. Therefore, when the terminals of the first group need to establish a wireless link (for example, the mobile phone and the PC need to establish a wireless link to execute the target service), the resource management device selects a channel suitable for the target service for the mobile phone and the PC according to the global channel information of the first group and the type of the target service between the mobile phone and the PC, which is beneficial to improving the data transmission efficiency of the target service and improving the use experience of the target service. On the whole, the technical scheme provided by the embodiment of the application can optimize the use efficiency of the global channel resources in the first group and improve the overall use experience of the terminal service in the first group.

It should be further noted that, in some other scenarios, when the router selects a channel for the target service of the mobile phone and the PC based on the channel information reported by each of the first group of terminals, the router may also dynamically switch channels used by other terminals. For example, the smart speakers and smart screen engage in an on-air service over channel 153. When the mobile phone and the PC perform a target service (for example, a VoIP service), after the above steps S1201 to S1203 are performed, if the router determines that the optimal channel of the VoIP service of the mobile phone and the PC is also the channel 153. Since the priority of the VoIP service is higher than that of the voice service, the router determines that the VoIP service of the mobile phone and the PC is performed on the channel 153, and simultaneously may notify the smart speaker or the smart screen to switch the channel, so as to switch the channel 153 to another channel. Therefore, the router allocates the optimal channel for the service of each terminal in the first group based on the first group of global channel information and the first group of global service information, so as to improve the overall utilization rate of the first group of channel resources.

In other embodiments of the present application, when the mobile phone in the first group and the PC need to perform data transmission of the target service, the mobile phone or the PC may also request the router for channel information, and decide a channel for transmitting the data of the target service based on the channel information returned by the router. For example, as shown in fig. 13, a flowchart of a method for selecting a transmission channel for a handset based on channel information maintained by a router includes:

s1301, finding the PC by the mobile phone.

Step S1201 may be referred to in this step, and details are not repeated here.

S1302, the mobile phone sends a request message F to the router, wherein the request message F is used for requesting channel information around the mobile phone and the PC. Accordingly, the router receives the request message F.

The request message F carries the identifier of the mobile phone and the identifier of the PC. Optionally, the request message F may also carry a service type of the target service or an identifier of the target service. The service type of the target service includes a delay sensitive service or a high bandwidth service. Alternatively, the service type of the target service includes voice service, video service, best effort service or background traffic service, etc. In addition, the target services in the embodiment of the present application include, but are not limited to, a voice/video call service, an audio/video playing service, a screen/sound projecting service, a picture/file sharing service, and the like.

In other embodiments, after the mobile phone finds a PC, i.e. after step S1301 is executed, the mobile phone may determine channel information around the mobile phone based on the channel information cached by the mobile phone itself. Or after finding the PC, the mobile phone performs channel detection again, and then determines channel information around the mobile phone based on the obtained channel information. In other words, the mobile phone does not need to request the router for information of channels around the mobile phone, that is, the request message F may not carry an identifier of the mobile phone, or the request message F is not used to request the router for channel information of channels around the mobile phone, and the router does not need to query the channel information around the mobile phone in the subsequent step S1303.

And S1303, the router inquires the channel information around the mobile phone and the channel information around the PC according to the channel use information table maintained by the router.

In a specific implementation, the router may search the channel information around the handset and the channel information around the PC from the channel usage information table according to the identifier of the handset and the identifier of the PC carried in the request message E. The channel information around the mobile phone includes channel information reported by the mobile phone, or channel information of an interference channel of the mobile phone, or channel information of other channels excluding the interference channel of the mobile phone. The interference channel of the mobile phone means that there are other terminals on the channel that will cause interference (co-channel interference or adjacent channel interference, etc.) to the opponent mechanism. The channel information around the PC includes channel information reported by the PC, or channel information of an interference channel of the PC, or channel information of other channels excluding the interference channel of the PC. The interference channel of the PC means that other terminals on the channel will interfere with the PC (co-channel interference or adjacent channel interference, etc.).

In some other embodiments, when the request message F is not used to request the channel information around the handset, the router may not query the channel information of the handset channel, and in the subsequent step S1304, the router also does not need to return the channel information around the handset.

And S1304, the router returns channel information around the mobile phone and channel information around the PC to the mobile phone.

And S1305, the mobile phone configures a target channel based on the channel information around the mobile phone and the channel information around the PC and the type of the target service, and the target channel is used for transmitting the data of the target service of the mobile phone and the PC.

The process of configuring the target channel for the target service of the mobile phone and the PC by the mobile phone based on the channel information around the mobile phone and the channel information around the PC may refer to the decision process of the router in step S1203, which is not described herein again. In addition, the embodiment of the application also does not limit the specific method adopted by the mobile phone to decide the target channel.

The configuration information of the target channel comprises a central frequency point where the target service is located and a bandwidth.

And S1306, the mobile phone performs data transmission of the target service with the PC on the target channel.

S1307, the handset returns the configuration information of the target channel and the information of the target service to the router. Correspondingly, the router receives the configuration information of the target channel and the information of the target service returned by the mobile phone, and updates the channel use information table.

It should be noted that step S1307 may be executed before, after, or simultaneously with step S1306.

In other embodiments, the router may also synchronize information of each channel in the channel usage information table to the mobile phone, or synchronize information of channels corresponding to the mobile phone and terminals around the mobile phone to the mobile phone. Therefore, when the mobile phone needs to establish wireless connection with other terminals, the information of the channel required by the data transmission can be directly determined according to the pre-stored channel information and the type of the target service, which is beneficial to accelerating the process of channel selection and further accelerating the data transmission of the target service between the mobile phone and other terminals.

In view of the above, the present application provides another channel selection method for target services of a mobile phone and a PC based on channel information reported by each terminal in a router. Specifically, the plurality of terminals in the first group cooperate to perform channel detection, and report the detected channel information to the resource management device in the first group, and the resource management device maintains the global channel information in the first group. Subsequently, when a wireless link needs to be established between the terminals of the first group (for example, a wireless link needs to be established between a mobile phone and a PC), specific channel information (channel information of a mobile phone cycle and channel information around the PC) is applied to the resource management device, and then the most suitable channel is determined for the terminal to be established with the wireless link to transmit data based on the applied specific channel information. It can be understood that, since the decision is not made based on the channel information detected by only a single terminal (e.g., a mobile phone) but with reference to the channel information of other terminals in the first group, the scheme provided by the embodiment of the present application can avoid that the other terminals in the first group collide with the current data transmission (i.e., the data transmission between the mobile phone and the PC), thereby improving the utilization rate of channel resources and improving the data transmission efficiency of the channel.

In addition, in the embodiment of the present application, when the resource management device maintains the global channel information of the first group, association between each channel and service information of the resident terminal is also established. Therefore, when the first group of terminals need to establish a wireless link (for example, the mobile phone and the PC need to establish a wireless link to execute the target service), the resource management device selects a channel suitable for the target service for the mobile phone and the PC according to the global channel information of the first group and the type of the target service between the mobile phone and the PC, which is beneficial to improving the data transmission efficiency of the target service and improving the use experience of the target service. On the whole, the technical scheme provided by the embodiment of the application can optimize the use efficiency of the global channel resources in the first group and improve the overall use experience of the terminal service in the first group.

It should be noted that, in the above embodiment, when the wireless link is established between the two terminals (the handset and the PC) in the first group, the channels used for transmitting data are voted based on the channel usage information maintained by the resource manager (i.e., the router) in the first group. In other embodiments, when a wireless link is established across terminals of a device group, the channel usage information table maintained by the resource manager of two or more device groups may also be used to decide which channel the terminal that needs to establish the wireless link will use. For example, a family scenario includes two device groups, such as a first group and a second group. In some examples, the resource management devices of the first and second groups may be synchronized. That is, the resource management device of the first group also includes channel information corresponding to the managed device of the second group, and the resource management device of the second group also includes channel information corresponding to the managed device of the first group. Then, when the terminal a of the first group is to establish a radio link with the terminal B of the second group, the terminal a of the first group applies for a channel to the resource management device of the first group, or applies for channel information around the terminal a of the first group and the terminal B of the second group for deciding on the channel. Or, the terminal B of the second group applies for a channel from the resource management device of the second group, or applies for channel information around the terminal a of the first group and the terminal B of the second group for deciding the channel. Of course, the decision may also be made in other manners based on the technical idea of centralized management and centralized decision of the resource management device, which is not limited herein.

Embodiments of the present application further provide a chip system, as shown in fig. 14, where the chip system includes at least one processor 1401 and at least one interface circuit 1402. The processor 1401 and the interface circuit 1402 may be interconnected by lines. For example, the interface circuit 1402 may be used to receive signals from other devices (e.g., memory). As another example, the interface circuit 1402 may be used to send signals to other devices (e.g., a processor). Illustratively, the interface circuit 1402 may read instructions stored in memory and send the instructions to the processor 1401. The instructions, when executed by the processor 1401, may cause the terminal to perform the various steps performed by the managed device 100 (e.g. handset) or the resource management device 200 (e.g. router) in the embodiments described above. Of course, the chip system may further include other discrete devices, which is not specifically limited in this embodiment of the present application.

The embodiment of the present application further provides an apparatus, where the apparatus is included in a terminal (including the resource management device 200 or the managed device 100), and the apparatus has a function of implementing a behavior of the terminal (the resource management device 200 or the managed device 100) in any one of the methods in the foregoing embodiments. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes at least one module or unit corresponding to the above functions. For example, a transmitting module or unit, a receiving module or unit, a processing module or unit, a storage module or unit, and so on.

Embodiments of the present application further provide a computer storage medium, which includes computer instructions, and when the computer instructions are executed on a terminal (including the resource management device 200 or the managed device 100), the terminal executes any one of the methods in the foregoing embodiments.

The embodiments of the present application also provide a computer program product, which when run on a computer, causes the computer to execute any one of the methods in the above embodiments.

It is to be understood that the above-mentioned terminal (the resource management device 200 or the managed device 100) or the like includes a hardware structure and/or a software module corresponding to each function in order to realize the above-mentioned functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present embodiments.

In the embodiment of the present application, the terminal (the resource management device 200 or the managed device 100) and the like may be divided into functional modules according to the above method example, for example, each functional module may be divided according to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, the division of the modules in the embodiment of the present invention is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.

Each functional unit in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially implemented or make a contribution to the prior art, or all or part of the technical solutions may be implemented in the form of a software product stored in a storage medium and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a processor to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: flash memory, removable hard drive, read only memory, random access memory, magnetic or optical disk, and the like.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A system for managing radio channel resources, comprising:

the first terminal is used for sending a first message to a third terminal, wherein the first message comprises an identifier of the first terminal and an identifier of a second terminal;

the third terminal is configured to determine configuration information of a target channel according to the identifier of the first terminal, the identifier of the second terminal, and a channel usage information table maintained by the third terminal in the first message; the channel use information table comprises use information of each channel reported by the first terminal and use information of each channel reported by the second terminal;

the third terminal is further configured to return configuration information of the target channel to the first terminal;

the first terminal is further configured to establish a wireless link with the second terminal according to the configuration information of the target channel.

2. The system of claim 1,

the first terminal is further configured to send the type of the first service to the third terminal;

the third terminal is further configured to determine the configuration information of the target channel according to the type of the first service when determining the configuration information of the target channel according to the identifier of the first terminal, the identifier of the second terminal, and a channel usage information table maintained by the third terminal in the first message.

3. The system of claim 2, wherein the first message further comprises a type of the first service.

4. The system of any of claims 1-3, wherein the configuration information of the target channel comprises a center frequency, a primary frequency, and a channel bandwidth.

5. The system according to any one of claims 1 to 4,

the usage information of each channel reported by the first terminal includes: one or more of duty ratio on each channel, information of a resident terminal on each channel, service type of each resident terminal, or received signal strength corresponding to each resident terminal, which are scanned by the first terminal;

the usage information of each channel reported by the second terminal includes: the duty ratio of each channel scanned by the second terminal, the information of the resident terminal on each channel, the service type of each resident terminal, or one or more of the received signal strength corresponding to each resident terminal.

6. The system according to any one of claims 1 to 5,

the determining, by the third terminal, the configuration information of the target channel according to the identifier of the first terminal, the identifier of the second terminal, and the channel usage information table maintained by the third terminal in the first message specifically includes:

the third terminal searches channel information around the first terminal from the channel use information table maintained by the third terminal according to the identifier of the first terminal in the first message; and searching channel information around the second terminal from the channel use information table maintained by the third terminal according to the identifier of the second terminal in the first message.

7. The system according to any one of claims 1 to 6,

the third terminal is further configured to send a second message before receiving the first message sent by the first terminal, where the second message is used to request the first terminal to report the usage information of each channel.

8. The system of claim 7, wherein the second message is a broadcast message, and is further configured to request the second terminal to report usage information of each channel;

or, the third terminal is further configured to send a third message to the second terminal before receiving the first message sent by the first terminal, where the third message is used to request the second terminal to report the usage information of each channel.

9. The system of any one of claims 1-8,

the third terminal is further configured to send a fourth broadcast message, where the fourth broadcast message includes an identifier of the third terminal;

the first terminal is further configured to determine, after receiving the fourth broadcast message, to send a fifth message to the third terminal according to the received signal strength of the received fourth broadcast message, where the fifth message is used to request to join a group in which the third terminal is located;

and the third terminal is further configured to send a sixth message to the first terminal according to the fifth message received from the first terminal, where the sixth message is used to confirm that the first terminal joins the group where the third terminal is located.

10. The system according to any one of claims 1 to 9,

the third terminal is further configured to update the channel usage information table after determining the configuration information of the target channel.

11. A system for managing radio channel resources, comprising:

the first terminal is used for sending a first message to a third terminal, wherein the first message comprises an identifier of the second terminal;

the third terminal is configured to determine, according to the identifier of the second terminal in the first message, channel information around the second terminal from a channel usage information table maintained by the third terminal; returning channel information around the second terminal to the first terminal;

the first terminal is further configured to determine configuration information of a target channel according to channel information around the second terminal and channel information around the first terminal; and establishing a wireless link with the second terminal according to the configuration information of the target channel.

12. The system of claim 11,

the first message further comprises an identification of the first terminal;

the third terminal is further configured to determine, according to the identifier of the first terminal in the first message, channel information around the first terminal from a channel usage information table maintained by the third terminal; and returning the channel information around the first terminal to the first terminal.

13. The system of claim 11 or 12,

the first terminal is further configured to send a second message to the third terminal after determining the configuration information of the target information, where the second message includes the configuration information of the target channel and information of a service executed by the first terminal;

the third terminal is further configured to update the channel usage information table according to the configuration information of the target channel and the information of the service executed by the first terminal.

14. A method for managing radio channel resources, comprising:

a third terminal receives a first message sent by a first terminal, wherein the first message comprises an identifier of the first terminal and an identifier of a second terminal;

determining configuration information of a target channel according to the identifier of the first terminal, the identifier of the second terminal and a channel use information table maintained by the third terminal in the first message; the channel use information table comprises use information of each channel reported by the first terminal and use information of each channel reported by the second terminal;

and returning the configuration information of the target channel to the first terminal.

15. The method of claim 14, wherein before determining the configuration information of the target channel according to the identifier of the first terminal, the identifier of the second terminal, and the channel usage information table maintained by the third terminal in the first message, the method further comprises:

the third terminal receives the type of the first service sent by the first terminal;

and when the third terminal determines the configuration information of the target channel according to the identifier of the first terminal, the identifier of the second terminal and a channel use information table maintained by the third terminal in the first message, the third terminal also determines the configuration information of the target channel according to the type of the first service.

16. The method of claim 15, wherein the first message further comprises a type of the first service.

17. The method of any of claims 14-16, wherein the configuration information of the target channel comprises a center frequency, a primary frequency, and a channel bandwidth.

18. The method according to any one of claims 14 to 17,

19. The method of any one of claims 14 to 18,

20. The method according to any of claims 14-19, wherein before the third terminal receives the first message sent by the first terminal, the method further comprises:

and the third terminal sends a second message, wherein the second message is used for requesting the first terminal to report the use information of each channel.

21. The method of claim 20, wherein the second message is a broadcast message, and is further configured to request the second terminal to report usage information of each channel;

or, the third terminal sends a third message to the second terminal before receiving the first message sent by the first terminal, where the third message is used to request the second terminal to report the usage information of each channel.

22. The method according to any of claims 14-21, wherein before the third terminal receives the first message sent by the first terminal, the method further comprises:

the third terminal sends a fourth broadcast message, wherein the fourth broadcast message comprises the identifier of the third terminal;

the third terminal receives a fifth message sent by the first terminal, wherein the fifth message is used for requesting to join a group where the third terminal is located;

and the third terminal determines to send a sixth message to the first terminal according to the received fifth message of the first terminal, wherein the sixth message is used for confirming that the first terminal is added into the group where the third terminal is located.

23. The method according to any of claims 14-22, wherein after the third terminal determines the configuration information of the target channel, the method further comprises:

the third terminal updates the channel usage information table.

24. A method for managing radio channel resources, comprising:

a first terminal sends a first message to a third terminal, wherein the first message comprises an identifier of the second terminal;

the first terminal receives channel information around the second terminal returned by the third terminal; the channel information around the second terminal is determined by the third terminal according to the identifier of the second terminal in the first message and a channel information table maintained by the third terminal; the channel use information table comprises use information of each channel reported by the first terminal and use information of each channel reported by the second terminal;

the first terminal determines configuration information of a target channel according to the channel information around the second terminal and the channel information around the first terminal;

and establishing a wireless link with the second terminal according to the configuration information of the target channel.

25. The method of claim 24,

the first message further comprises an identification of the first terminal;

the first terminal further receives channel information around the first terminal sent by the third terminal, where the channel information around the first terminal is determined by the third terminal according to the identifier of the first terminal in the first message and a channel information table maintained by the third terminal.

26. The method of claim 24 or 25, wherein after determining the configuration information of the target information, the method further comprises:

the first terminal sends a second message to the third terminal, wherein the second message comprises the configuration information of the target channel and the information of the service executed by the first terminal; the second message is used for the third terminal to update the channel information table.

27. A terminal, comprising: a processor, a memory and a wireless communication module, the memory and the wireless communication module being coupled to the processor, the memory for storing computer program code comprising computer instructions which, when read by the processor from the memory, cause the terminal to perform the method of managing radio channel resources of any of claims 14-23 or the method of managing radio channel resources of any of claims 24-26.

28. A computer-readable storage medium, characterized in that it comprises computer instructions which, when run on a terminal, cause the terminal to perform the method for management of radio channel resources according to any of claims 14-23 or the method for management of radio channel resources according to any of claims 24-26.