WO2021196939A1

WO2021196939A1 - Method and apparatus for scheduling air interface resource

Info

Publication number: WO2021196939A1
Application number: PCT/CN2021/078209
Authority: WO
Inventors: 赵望生
Original assignee: 华为技术有限公司
Priority date: 2020-03-30
Filing date: 2021-02-26
Publication date: 2021-10-07
Also published as: CN113473615A; CN113473615B

Abstract

The present application relates to the technical field of communications. Disclosed are a method and apparatus for scheduling air interface resources, which method and apparatus are used for solving the problem of air interface resource occupation conflict. The method is applied to a first wireless device. The method comprises: when first instruction information for instructing a first wireless device to occupy air interface resources is received, occupying the air interface resources to receive and send data; and when a first length of time is reached, releasing the air interface resources, and notifying a second wireless device of occupying the air interface resources, wherein the second wireless device can be the first wireless device after the first wireless device according to an occupation order.

Description

Method and device for scheduling air interface resources

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office of China, the application number is 202010237304.5, and the application name is "A method and device for scheduling air interface resources" on March 30, 2020, and the claim is on April 2020. The priority of the Chinese patent application filed with the State Intellectual Property Office of China with the application number 202010298649.1 and the application title is "A method and device for scheduling air interface resources", the entire content of which is incorporated into this application by reference.

Technical field

The embodiments of the present application relate to the field of communication technologies, and in particular, to a method and device for scheduling air interface resources.

Background technique

In wireless fidelity (Wi-Fi) technology, wireless devices such as wireless stations (STA) and wireless access points (AP) use air interface resources to send and receive data.

At present, multiple wireless devices usually occupy air interface resources in a competitive manner, and occupation conflicts are more likely to occur. The wireless devices participating in the competition cannot ensure that they can obtain occupation opportunities, which affects the business operation of the wireless devices.

Summary of the invention

The embodiments of the present application provide a method and device for scheduling air interface resources, which are used to solve the problem of air interface resource occupation conflicts in the prior art.

In the first aspect, an embodiment of the present application provides a method for scheduling air interface resources, which is applied to a first wireless device, and includes:

Receive first indication information, where the first indication information is used to instruct the first wireless device to occupy air interface resources, occupy the air interface resources to send and receive data; release the air interface resources when the first duration is reached, and notify the second wireless device The device occupies the air interface resource.

In the embodiment of the present application, the wireless device occupies the air interface resources according to the instructions, and notifies other wireless devices to occupy the air interface resources when the occupancy ends. Multiple wireless devices can instruct each other to occupy the air interface resources to coordinate sending and receiving data without continuously monitoring the air interface. The state of using competition to seize air interface resources can avoid preemption conflicts and reduce the uncertainty of wireless devices occupying air interface resources without additional waiting time, which is conducive to improving business experience.

In an optional implementation manner, the second wireless device is the first wireless device after the first wireless device in the occupation sequence, and the occupation sequence is based on the first wireless device and the first wireless device. The network topology structure where the second wireless device is located is determined.

In the embodiments of the present application, wireless devices occupy air interface resources in an orderly manner in order to avoid preemption conflicts caused by competing for air interface resources, reduce the uncertainty of wireless devices occupying air interface resources, and do not require additional waiting time, which is beneficial to Improve business experience.

In an optional implementation manner, the first duration is determined according to duration control parameters, and the duration control parameters include the occupancy sequence and the service delay requirements of multiple wireless devices included in the network topology. One or more of the service traffic of the first wireless device.

In an optional implementation manner, the receiving the first indication information includes: receiving the first indication information from a third wireless device, and the third wireless device is in the same order as the first wireless device. A wireless device that is adjacent and located in front of the first wireless device; or, receives the first indication information from the management device.

In an optional implementation manner, the notifying the second wireless device of occupying the air interface resource includes: sending second indication information to the second wireless device, where the second indication information is used to indicate the second wireless device 2. The wireless device occupies the air interface resource; or, sends a release signal to the management device to instruct the second wireless device to occupy the air interface resource through the management device; wherein, the release signal is used to instruct the first The wireless device releases the air interface resources.

In an optional implementation manner, the first wireless device is a wireless access point AP; and the first indication information includes permission to send a CTS message.

In the second aspect, an embodiment of the present invention provides a method for scheduling air interface resources, which is applied to a management device, and includes:

According to the network topology structure corresponding to the multiple wireless devices, determine the occupancy sequence of the multiple wireless devices occupying the air interface resources; and send the occupancy sequence to the multiple wireless devices.

In the embodiment of the present application, the management device first determines the occupancy sequence of the air interface resources occupied by multiple wireless devices, and sends the occupancy sequence to the multiple wireless devices, so that the multiple wireless devices occupy the air interface resources in sequence according to the occupancy sequence without continuous monitoring. The state of the air interface uses competition to seize air interface resources, which can avoid preemption conflicts and reduce the uncertainty of wireless devices occupying air interface resources without additional waiting time, which is conducive to improving business experience.

In an optional implementation manner, the method further includes, for each wireless device of the plurality of wireless devices, executing: according to a duration control parameter, determining the duration of time that the wireless device occupies the air interface resource; wherein The duration control parameter includes one or more of the occupancy sequence, the service delay requirements of multiple wireless devices included in the network topology, and the service traffic of the wireless devices; and the duration is sent to The wireless device.

In an optional implementation manner, the method further includes: acquiring wireless device distribution information around each of the multiple wireless devices; constructing wireless device distribution information around each wireless device The network topology structure corresponding to the multiple wireless devices.

In an optional implementation manner, the method further includes: receiving a release signal from the first wireless device, where the release signal is used to instruct the first wireless device to release the air interface resource, and the first wireless device The device is any one of the multiple wireless devices; according to the occupying sequence, the second wireless device is notified to occupy the air interface resource, and the second wireless device is located after the first wireless device in the occupying sequence The first wireless device.

In an optional implementation manner, the management device includes a wireless access point AP.

In a third aspect, an embodiment of the present application provides an air interface resource scheduling apparatus, which is set in a first wireless device, and includes:

The receiving module is used to receive first indication information, the first indication information is used to instruct the first wireless device to occupy air interface resources; the processing module is used to occupy the air interface resources to send and receive data; the sending module is used to Release the air interface resource for the first duration, and notify the second wireless device to occupy the air interface resource.

In the embodiment of the present application, the wireless devices occupy air interface resources in an orderly manner in order to avoid preemption conflicts caused by competing for air interface resources, thereby reducing waiting time and improving air interface efficiency.

In an optional implementation manner, the receiving module is specifically configured to: receive the first indication information from a third wireless device, where the third wireless device is in the same occupation sequence as the first wireless device. Adjacent, and a wireless device located before the first wireless device; or, receiving the first indication information from the management device.

In an optional implementation manner, the sending module is specifically used for:

Send second indication information to the second wireless device, where the second indication information is used to indicate that the second wireless device occupies the air interface resource; or, send a release signal to the management device to indicate through the management device The second wireless device occupies the air interface resource; wherein the release signal is used to instruct the first wireless device to release the air interface resource.

In a fourth aspect, an embodiment of the present application provides an air interface resource scheduling apparatus, which is provided in a management device and includes: a processing module, configured to determine that the multiple wireless devices occupy the The occupying sequence of the air interface resources; a sending module for sending the occupying sequence to the multiple wireless devices.

In an optional implementation manner, the processing module is further configured to perform for each wireless device among the multiple wireless devices: determine the amount of time that the wireless device occupies the air interface resource according to the duration control parameter Duration; wherein, the duration control parameter includes one or more of the occupancy sequence, the service delay requirements of multiple wireless devices included in the network topology, and the service traffic of the wireless devices; the sending The module is also used to send the duration to the wireless device.

In an optional implementation manner, the processing module is further configured to: obtain wireless device distribution information around each of the multiple wireless devices; and according to the wireless device distribution around each wireless device Information to construct a network topology structure corresponding to the multiple wireless devices.

In an optional implementation manner, the device further includes a receiving module;

The receiving module is configured to receive a release signal from a first wireless device, where the release signal is used to instruct the first wireless device to release the air interface resource, and the first wireless device is one of the multiple wireless devices The sending module is further configured to notify a second wireless device to occupy the air interface resource according to the occupation sequence, and the second wireless device is the one located after the first wireless device in the occupation sequence The first wireless device.

In a fifth aspect, an embodiment of the present application provides a communication device, including: a processor and a memory;

The memory is configured to store a computer program; the processor is configured to execute the computer program stored in the memory, so that the communication device executes the method in any possible implementation manner of the first aspect, or executes the first aspect The method in any possible implementation of the two aspects.

In a sixth aspect, an embodiment of the present application provides a communication device, including: a processor and an interface circuit; the interface circuit is configured to receive and transmit code instructions to the processor; and the processor is configured to run the code instructions To execute the method in any possible implementation manner of the first aspect, or execute the method in any possible implementation manner of the second aspect.

In a seventh aspect, an embodiment of the present application provides a readable storage medium that stores an instruction, and when the instruction is executed, the method in any possible implementation manner of the first aspect is implemented, Or enable the method in any possible implementation manner of the second aspect to be implemented.

In an eighth aspect, an embodiment of the present application provides a computer program product, the computer program product comprising: computer program code, when the computer program code is executed by the processor of the communication device, the communication device can execute any one of the possibilities of the first aspect. Or any possible implementation of the second aspect described above.

In a ninth aspect, an embodiment of the present application provides a communication system, including the air interface resource scheduling apparatus of the foregoing third aspect and the air interface resource scheduling apparatus of the foregoing fourth aspect.

Description of the drawings

FIG. 1a is a schematic structural diagram of a WLAN communication system architecture provided by an embodiment of this application;

FIG. 1b is a schematic structural diagram of another WLAN communication system architecture provided by an embodiment of this application;

FIG. 2 is a schematic diagram of delayed occupation of air interface resources according to an embodiment of the application;

FIG. 3 is a schematic diagram of the first communication network architecture provided by an embodiment of this application;

FIG. 4a is a schematic diagram of waiting for an air interface to be occupied according to an embodiment of the application;

FIG. 4b is another schematic diagram of waiting to occupy an air interface provided by an embodiment of the application;

FIG. 5 is a schematic flowchart of an air interface resource scheduling method provided by an embodiment of this application;

FIG. 6 is a schematic diagram of the first network topology structure provided by an embodiment of this application;

FIG. 7 is a schematic diagram of a second network topology structure provided by an embodiment of this application;

FIG. 8 is a schematic diagram of a third network topology structure provided by an embodiment of this application;

FIG. 9 is a schematic diagram of a wireless device interaction provided by an embodiment of this application;

FIG. 10 is a schematic diagram of a second communication network architecture provided by an embodiment of this application;

FIG. 11 is a schematic diagram of a third communication network architecture provided by an embodiment of this application;

FIG. 12 is a schematic diagram of transmission of indication information provided by an embodiment of this application;

FIG. 13 is a schematic flowchart of another air interface resource scheduling method provided by an embodiment of the application;

FIG. 14 is a schematic structural diagram of an air interface resource scheduling apparatus provided by an embodiment of this application;

15 is a schematic structural diagram of another air interface resource scheduling apparatus provided by an embodiment of this application;

FIG. 16 is a schematic structural diagram of a communication device provided by an embodiment of this application;

FIG. 17 is a schematic structural diagram of another communication device provided by an embodiment of this application.

Detailed ways

In order to make the purpose, technical solutions, and advantages of the application more clear, the application will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

In addition, the multiple mentioned in this application refers to two or more. "And/or" describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone. The character "/" generally indicates that the associated objects before and after are in an "or" relationship. In addition, it should be understood that although the terms first, second, etc. may be used in the embodiments of the present invention to describe various data, these data should not be limited to these terms. These terms are only used to distinguish each data from each other.

The method provided in the embodiments of the present application can be applied to a wireless local area network (WLAN) communication system, such as a Wi-Fi communication system.

Fig. 1a is a schematic diagram of a WLAN communication system architecture to which the method provided in an embodiment of the application is applied. The WLAN communication system includes a wireless access point (access point, AP) 101 and a wireless station (station, STA) 102. The WLAN communication system may further include a gateway 103. For example, the gateway 103 may be a switch.

Among them, AP101 is a wireless device that provides wireless access services and data access, allowing other wireless devices in the WALN communication system to access. STA102 is a wireless terminal connected to the wireless local area network where the WLAN communication system is located, such as mobile phones (mobile phones), tablets, notebook computers, handheld computers, mobile Internet devices (MID), virtual reality (virtual reality, VR). ) Devices, augmented reality (AR) devices, wireless terminals in smart homes, etc.

Wireless communication can be carried out between APs and APs in a WLAN communication system, and one AP can access multiple STAs. For example, another WALN communication system architecture illustrated in Figure 1b shows that the WALN communication system includes a first AP and a second AP; wireless communication is performed between the first AP and the second AP; One STA, a second STA is connected to the second AP.

In Wi-Fi technology, wireless devices such as wireless stations (STA) and wireless access points (AP) occupy air interface resources to send or receive signals and data on the air interface. Prior to the Wi-Fi technology standard 802.11ax defined by the Institute of Electrical and Electronics Engineers (IEEE) for 2.4G and 5G frequency bands, such as 802.11 released in 1997 and released in 1999 for 2.4 G-band 802.11b and 802.11a for the 5G band, 802.11g for the 2.4G band released in 2003, and 802.11ac for the 5G band released in 2013, etc. The AP/gateway and STA in the air interface usually follow The distributed coordination function (DCF) defined by the WiFi standard obtains opportunities to occupy air interface resources through competition. Starting from 802.11ax, uplink scheduling is supported. Both uplink and downlink data can be scheduled through AP/gateway. STAs do not need to compete for opportunities on their own, but there are still competition opportunities between AP and AP, AP and gateway. For example, the AP/gateway in the air interface uses the point coordination function (PCF) defined by the WiFi standard to obtain opportunities to occupy air interface resources through competition.

Occupying air interface resources based on competition makes it easier for wireless devices to have preemption conflicts. When the air interface is idle, it is impossible to ensure that they can obtain opportunities for occupation, and there is uncertainty. At present, in order to reduce preemption conflicts, each wireless device judges whether the air interface is idle, and when it is first determined to be idle, it needs to wait for a certain period of time and then determine that the air interface is idle again before it can occupy the air interface resources. Figure 2 illustrates a schematic diagram of delayed occupation of air interface resources. The wireless device determines that the air interface changes from busy to idle at T1, and waits for the arbitration interframe space (AIFS) and a random backoff time (backoff time) to reach T2. If the air interface remains idle , The air interface resources are occupied to send and receive data, for example, frames are sent on the air interface.

When there are more wireless devices in the air interface, it takes a relatively long time to obtain the occupancy opportunity, and there is still uncertainty. For wireless devices that need to handle services with lower service delays, the service delay cannot be guaranteed, which will affect their service experience.

Take the first communication network architecture shown in Figure 3 as an example. When DCF is used, AP1, STA11, STA12, STA13, AP2, STA21, STA22, and STA23 in Figure 3 all need to compete to obtain opportunities to occupy air interface resources. During the first time it is determined that the air interface is idle, if other wireless devices compete for the air interface, they can only continue to wait; Figure 4a shows a schematic diagram of waiting for the air interface. AP1 waits for STA11, STA13, AP2, STA12, and STA21 to occupy the air interface. Then occupy air interface resources. If AP1 needs to process services with lower service delay, the longer waiting time will affect AP1's service experience.

Take the first communication network architecture shown in Figure 3 as an example. When uplink scheduling is used, only APs need to compete for the opportunity to occupy air interface resources. The AP and the STAs that access the AP form a scheduling domain. Within the time of the air interface resource, centralized scheduling can be performed in the scheduling domain represented by the AP, and the competition between APs is also the competition between the scheduling domains represented by the AP. Another schematic diagram of waiting to occupy an air interface as shown in FIG. 4b illustrates the waiting process of occupying air interface resources between AP1 and AP2. Although compared with the use of DCF, the probability of preemption conflicts and waiting time are reduced, but when services with extremely low service delay such as VR services need to be processed, this method still affects the service experience, and this method is limited to the number of APs. When the number of APs in the air interface device is large, there may still be a long waiting time. It can be seen that regardless of whether DCF or uplink scheduling is used, the way to obtain opportunities to occupy air interface resources through competition is that wireless devices occupy air interface resources with uncertainty and require a certain waiting time, resulting in low air interface efficiency, which is not conducive to wireless devices. Business experience.

Based on this, the embodiments of the present application provide a method and apparatus for scheduling air interface resources, which can enable multiple wireless devices to occupy air interface resources in an orderly manner, avoid preemption conflicts, and reduce the uncertainty of wireless devices occupying air interface resources without additional waiting. Time is conducive to improving the business experience. Since the principles of the method and the device to solve the problem are the same, the embodiments of the method part and the device part can be referred to each other, and the repetition will not be repeated.

The embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

Referring to FIG. 5, an embodiment of the present application provides a method for scheduling air interface resources. The method is applied to a first wireless device. The first wireless device may be any one of multiple wireless devices that need to occupy the same air interface resource. For example, the first wireless device may be an AP in a WLAN communication system, or it may be an STA.

The specific implementation process of this method is described in the following steps:

Step S501: Receive first indication information, where the first indication information is used to indicate that the first wireless device occupies air interface resources.

Wherein, the first indication information may be from other wireless devices communicating with the first wireless device.

Step S502: Occupy air interface resources to send and receive data.

In step S503, the air interface resources are released when the first duration is reached, and the second wireless device is notified that the air interface resources are occupied.

In the embodiment of the present application, the wireless device occupies the air interface resources according to the instructions, and notifies other wireless devices to occupy the air interface resources when the occupancy ends. Multiple wireless devices can instruct each other to occupy the air interface resources to coordinate sending and receiving data without continuously monitoring the air interface. The state of using competition to seize air interface resources can avoid preemption conflicts, reduce the uncertainty of wireless devices occupying air interface resources, without additional waiting time, and improve air interface efficiency and service experience.

In an optional implementation manner, the second wireless device is the first wireless device located after the first wireless device in the occupation sequence, and the occupation sequence is based on the network topology structure of the first wireless device and the second wireless device. definite.

In an optional implementation manner, the first wireless device and the second wireless device are mutually visible, that is, the first wireless device is within the communication range of the second wireless device, and the second wireless device is within the communication range of the first wireless device. within. Two mutually visible wireless devices can also be referred to as two adjacent wireless devices. It should be noted that in this application, the so-called "adjacent" does not limit the relative positional relationship of the two wireless devices.

For ease of understanding, the embodiment of the present application combines the schematic diagrams of the network topology shown in FIGS. 6-8, taking the way of uplink scheduling as an example, the order in which multiple wireless devices (that is, APs/gateways) occupy air interface resources Explain as follows:

The first network topology is shown in Figure 6. In this network topology, the gateway and AP1 are mutually visible, AP1 and AP2 are mutually visible, and the gateway and AP2 are not visible; the scheduling domain represented by AP1 contains two The stations are STA1 and STA2; the scheduling domain represented by AP2 includes one station, namely STA3. Optionally, the mutually visible wireless devices can be arranged in an adjacent order according to the network topology, and the determined occupancy order can be: gateway->AP1->AP2->AP1.

As shown in the second network topology structure shown in Figure 7, in this network topology structure, the gateway and AP1 are mutually visible, the gateway and AP2 are mutually visible, and AP1 and AP2 are not visible; the scheduling domain represented by AP1 contains two The stations are STA1 and STA2; the scheduling domain represented by AP2 contains one station, namely STA3. Optionally, the mutually visible wireless devices can be arranged in an adjacent order according to the network topology, and the determined occupation order can be: gateway->AP1->gateway->AP2.

The third network topology is shown in Figure 8. In this network topology, the gateway, AP1, and AP2 are visible to each other; the scheduling domain represented by AP1 contains two stations, namely STA1 and STA2; AP2 The represented scheduling domain includes a station, namely STA3. Optionally, the mutually visible wireless devices may be arranged in an adjacent order according to the network topology, and the determined occupation order may be: gateway->AP1->AP2.

In the embodiment of the present application, the APs and the gateways, that is, the scheduling domains occupy air interface resources in turn according to the occupying sequence, and centralized scheduling is performed between the APs and the STAs in the scheduling domains. Neither AP nor STA need to compete for air interface resources, which can avoid preemption conflicts, ensure that multiple wireless devices occupy air interface resources in an orderly manner, reduce the uncertainty of wireless devices occupying air interface resources, and do not need additional waiting time, which improves Air interface efficiency and business experience.

In an optional implementation manner, the first duration is determined according to duration control parameters. The duration control parameters include occupancy sequence, service delay requirements of multiple wireless devices included in the network topology, and service traffic of the first wireless device. One or more of.

For ease of understanding, take the occupancy sequence determined according to the first network topology shown in Figure 6, that is, gateway->AP1->AP2->AP1 as an example: in a round, only the gateway and AP2 are in turn 1 time, and AP1 was turned 2 times. When determining the occupancy duration of the gateway, AP1 and AP2 according to the occupancy sequence, you can optionally assign the same occupancy duration to the gateway and AP2, and assign AP1 half the occupancy duration compared to the gateway/AP2; or, you can set if AP1 receives If the received instruction information comes from the gateway, AP1 occupies the air interface resource according to the same occupation time as the gateway; if the instruction information received by AP1 comes from AP2, then AP1 directly sends an instruction message to the gateway to notify the gateway to occupy the air interface resource.

In addition, when the occupation time is determined according to the service delay requirements of multiple wireless devices included in the network topology, if the service delay requirement is high, the time for each wireless device to occupy air interface resources is shortened; if the service delay requirement is low, The time that the wireless device occupies the air interface resources each time can be increased to improve the air interface utilization rate and obtain higher throughput.

Optionally, the occupancy time is determined according to the service delay requirements of multiple wireless devices included in the network topology, and it can also be implemented with reference to the following method: set the single transmission delay of each wireless device, that is, a single occupancy of the air interface The duration of the resource satisfies the following conditions:

Single transmission delay <min (service 1 delay, service 2 delay,...service n delay)/number of devices participating in scheduling transmission;

Among them, min (service 1 delay, service 2 delay,...service n delay) represents the lowest service delay among the delay requirements of one or more services corresponding to multiple wireless devices; the number of devices participating in scheduling transmission is also That is, the aforementioned order of occupation corresponds to the number of multiple wireless devices.

In the embodiment of the present application, the lowest service delay among the service delay requirements of multiple wireless devices is determined according to the order of occupation, and the single transmission delay of each wireless device is determined, which can ensure that multiple devices take turns occupying air interface resources in the order of occupation. , The service delay requirements of each wireless device can be met.

Optionally, considering the different service flows of different wireless devices, such as APs, the occupation time of the AP can be adjusted according to the service flow of a single AP.

In an optional implementation manner, the management device that centrally manages multiple wireless devices may determine the occupancy sequence of multiple wireless devices and the occupancy duration of each wireless device, and determine the occupancy sequence and occupancy duration. The duration is correspondingly sent to each wireless device, such as the aforementioned first wireless device. In specific implementation, an independent wireless device may be used as the management device, or a certain wireless device among multiple wireless devices may be selected as the management device to determine the occupation sequence and the occupation duration.

In an optional implementation manner, the foregoing receiving first indication information may be specifically implemented with reference to the following manners:

Receive first indication information from a third wireless device, where the third wireless device is a wireless device that is adjacent to the first wireless device in order of occupation and is located before the first wireless device; or, receives the first indication information from the management device.

The foregoing notification of the second wireless device's occupation of air interface resources can be specifically implemented with reference to the following manners:

Send second indication information to the second wireless device, where the second indication information is used to indicate that the second wireless device occupies air interface resources; or, send a release signal to the management device to instruct the second wireless device to occupy air interface resources through the management device; wherein, The release signal is used to instruct the first wireless device to release air interface resources.

To facilitate understanding of the interaction relationship between wireless devices, referring to FIG. 9, an embodiment of the present application provides a schematic diagram of wireless device interaction. It specifically illustrates the sequence of the first wireless device, the second wireless device, and the third wireless device occupying air interface resources in sequence, including:

Step S901: The third wireless device occupies air interface resources to send and receive data.

Step S902: The third wireless device sends first indication information to the first wireless device to instruct the first wireless device to occupy air interface resources.

Step S903: The first wireless device occupies air interface resources to send and receive data.

Step S904: The first wireless device sends second indication information to the second wireless device to instruct the second wireless device to occupy air interface resources.

In specific implementation, the uplink scheduling method is adopted. When multiple wireless devices that need to occupy air interface resources include two wireless devices, the two wireless devices take turns instructing each other to occupy air interface resources. The aforementioned second wireless device and third wireless device may It is the same wireless device, and the second/third is only used to distinguish the different occupancy sequence of the same wireless device, and it does not limit its corresponding to different wireless devices.

As shown in the schematic diagram of the second communication network architecture shown in FIG. 10, wireless devices that need to occupy air interface resources include AP1 and AP2, which is an adjacent AP of AP1; among them, AP1 and AP2 are visible to each other. As shown in Figure 10, the scheduling domain represented by AP1 includes STA1 and STA2; the scheduling domain represented by AP2 includes STA3 and STA4. When AP1 receives instructions from AP2, it occupies air interface resources to send and receive data, such as sending data to other wireless devices or completing uplink and downlink data transmission between APs and STAs in the scheduling domain, etc.; AP1 sends instructions to AP2 after occupancy ends , To notify AP2 that the scheduling domain occupies air interface resources.

In the third communication network architecture schematic diagram shown in Figure 11, the wireless devices that need to occupy air interface resources include AP1 and AP2; among them, AP1 and AP2 are visible to each other; AP2 is the neighboring AP of AP1 and AP1 is subordinate Relationship AP. As shown in Figure 11, the scheduling domain represented by AP1 includes STA1 and STA2; the scheduling domain represented by AP2 includes STA3 and STA4. When AP1 receives instructions from AP2, it occupies air interface resources to send and receive data, such as sending data to other wireless devices or completing uplink and downlink data transmission between APs and STAs in the scheduling domain, etc.; AP1 sends instructions to AP2 after occupancy ends , To notify AP2 that the scheduling domain occupies air interface resources.

In the embodiment of the present application, the wireless device receives an instruction from the previous wireless device in the occupation sequence to occupy air interface resources, and at the end of the occupation, indicates that the next wireless device in the occupation sequence occupies the air interface resources. Occupy air interface resources in a sequential manner to coordinate sending and receiving data, without continuously monitoring the status of the air interface, and preempting air interface resources through competition, which can avoid preemption conflicts, reduce the uncertainty of wireless devices occupying air interface resources, without additional waiting time, and improve air interface efficiency And business experience.

In an optional implementation manner, the uplink scheduling method is adopted. The above multiple wireless devices, such as the first wireless device, the second wireless device, and the third wireless device, may all be APs; the transmission of instruction information between wireless devices may be through The corresponding control frames (control frames), management frames (management frames) or data frames (data frames) defined by the Wi-Fi technical standards are transmitted, such as clear to send (CTS) frames and management in control frames. Action frames in the frame, etc.

Optionally, the first indication information or the second indication information includes a CTS message, and the CTS message includes one or more CTS frames. For ease of understanding, the embodiment of the present application takes the sending of a CTS message between AP1 and AP2 in FIG. 10 as an example to describe in detail the manner in which a wireless device sends a CTS message to instruct other wireless devices to occupy air interface resources.

Referring to FIG. 12, an embodiment of the present application provides a schematic diagram of transmission of indication information. Figure 12 specifically illustrates the process of sending CTS messages between AP1 and AP2, and the process is as follows.

(1) AP1 receives the data frame sent by the STA in the scheduling domain it represents within the time it occupies air interface resources, and uses the block ack (BA) mechanism to confirm and then sends the first CTS message, which carries the identification information of AP2 For example, the basic service set identifier (BSSID) of AP2 indicates that AP2 occupies air interface resources.

(2) After AP2 receives the first CTS message of AP1, it receives the data frame sent by the STA in the scheduling domain it represents within the time it occupies air interface resources, and uses the block ack (BA) mechanism to confirm and then sends the second CTS message. 2. The CTS message carries identification information of AP1, such as a basic service set identifier (BSSID) of AP1, thereby indicating that AP1 occupies air interface resources.

(3) After AP1 receives the second CTS message of AP2, it uses the mechanism of sending a trigger frame within the time it occupies air interface resources, and triggers the STA in the scheduling domain it represents to send data frames, using the block ack (BA) mechanism to confirm Then, a third CTS message is sent, and the third CTS message carries identification information of AP2, such as a basic service set identifier (BSSID) of AP2, thereby indicating that AP2 occupies air interface resources.

(4) After AP2 receives the third CTS message of AP2, it uses the mechanism of sending a trigger frame within the time it occupies air interface resources, and triggers the STA in the scheduling domain it represents to send data frames, using the block ack (BA) mechanism to confirm After that, a fourth CTS message is sent, and the fourth CTS message carries identification information of AP1, such as a basic service set identifier (BSSID) of AP1, thereby indicating that AP1 occupies air interface resources.

In addition, in order to avoid situations such as when the first CTS message is sent after AP1 is occupied, the air interface resources are preempted by wireless devices other than AP2. Optionally, by setting a larger network allocation vector (NAV), it is ensured that other devices cannot preempt air interface resources within the time period corresponding to NAV, thereby ensuring that AP1 and AP2 can take turns occupying air interface resources according to the above process.

Further, referring to FIG. 13, an embodiment of the present invention provides another method for scheduling air interface resources. The method is applied to a management device and includes:

Step S1301: Determine the order in which the multiple wireless devices occupy the air interface resources according to the network topology structures corresponding to the multiple wireless devices.

In step S1302, the occupied sequence is sent to multiple wireless devices.

In the embodiment of the present application, the management device first determines the occupancy sequence of the air interface resources occupied by multiple wireless devices, and sends the occupancy sequence to the multiple wireless devices, so that the multiple wireless devices occupy the air interface resources in sequence according to the occupancy sequence without continuous monitoring. The state of the air interface uses competition to seize air interface resources, which can avoid preemption conflicts, reduce the uncertainty of wireless devices occupying air interface resources, without additional waiting time, and improve air interface efficiency and service experience.

In an optional implementation manner, the foregoing method further includes: for each of the multiple wireless devices, performing the following (1) and (2):

(1) According to the duration control parameters, determine the duration of the wireless device's occupation of air interface resources; among them, the duration control parameters include one of the occupancy sequence, the service delay requirements of multiple wireless devices included in the network topology, and the service traffic of the wireless devices. Or multiple.

In specific implementation, take the occupancy sequence determined according to the first network topology shown in Figure 6, that is, gateway->AP1->AP2->AP1 as an example: in a round, only the gateway and AP2 are in turn 1 time, and AP1 was turned 2 times. When determining the occupancy duration of the gateway, AP1 and AP2 according to the occupancy sequence, you can optionally assign the same occupancy duration to the gateway and AP2, and assign AP1 half the occupancy duration compared to the gateway/AP2; or, you can set if AP1 receives If the received instruction information comes from the gateway, AP1 occupies the air interface resource according to the same occupation time as the gateway; if the instruction information received by AP1 comes from AP2, then AP1 directly sends an instruction message to the gateway to notify the gateway to occupy the air interface resource.

Optionally, when the occupancy time is determined according to the service delay requirements of multiple wireless devices included in the network topology, if the service delay requirement is high, the time the wireless device occupies the air interface resource each time is shortened; if the service delay requirement is relatively high Low, which can increase the time that the wireless device occupies the air interface resources each time, so as to improve the air interface utilization and obtain higher throughput.

Optionally, considering the different service flows of different wireless devices, such as APs, the duration of time that the AP occupies air interface resources may also be adjusted according to the service flow of a single AP.

(2) Send the duration to the wireless device.

In the embodiments of this application, considering the occupancy sequence of multiple wireless devices, the service delay requirements of different wireless devices, and the service flow of different wireless devices, and other time control parameters, the time lengths for different wireless devices to occupy air interface resources are determined respectively, and then Send the determined duration to the corresponding wireless device. For example, according to the duration control parameter corresponding to the first wireless device, the duration of time for the first wireless device to occupy the air interface resource is determined, and the duration is sent to the first wireless device. Combining the current service delay requirements of multiple wireless devices on the air interface and the actual service conditions of a single wireless device to adjust the time that a single wireless device occupies air interface resources can help improve air interface efficiency and service experience.

In an optional implementation manner, before step S1301 is performed, the above method further includes:

S1. Obtain wireless device distribution information around each wireless device in a plurality of wireless devices.

Among them, the wireless device can be an AP. Based on the Wi-Fi technical standard, the AP periodically broadcasts beacon frames. The AP can obtain the distribution information of its surrounding APs through the acquired beacon frames, that is, determine its neighbors AP; AP can also carry the distribution information of its surrounding APs in the broadcast beacon frame, so that its neighboring APs can know which APs are neighboring to the AP when they obtain the beacon frame broadcast by the AP . For example, AP-1 broadcasts a beacon frame, and the beacon frame carries the distribution information of APs around AP-1; if AP-2 receives the beacon frame broadcast by AP-1, it can be determined that AP-1 is adjacent AP, and other APs adjacent to AP-1 can also be determined.

Based on this, the acquisition of wireless device distribution information around each wireless device in multiple wireless devices can be implemented in the following manner: if the AP is adjacent to the management device, or the AP and the management device are visible to each other, the management device can receive it directly The beacon frame of the AP to determine the wireless device distribution information around the AP. If the AP and the management device are not visible, the management device may also determine the wireless device distribution information around the AP based on the acquired beacon frames broadcast by other APs. For example, AP-1 is adjacent to AP-2, AP-2 is adjacent to AP-3, AP-3 is adjacent to the management device, but it is not visible between AP-1 and AP-3, AP-1 and the management device In a scenario where AP-2 and the management device are not visible, when AP-2 obtains the beacon frame broadcast by AP-1, it can be known that AP-2 is adjacent to AP-1. AP-2 carries the information that AP-2 is adjacent to AP-1 in the broadcast beacon frame, then AP-3 can know when it obtains the beacon frame broadcast by AP-2: AP-3 and AP-2 Adjacent, AP-2 is adjacent to AP-1. AP-3 carries the two information of AP-3 adjacent to AP-2 and AP-2 adjacent to AP-1 in the broadcast beacon frame, and the management device can obtain the information when it obtains the beacon broadcast by AP-3. Knowing: The management device is adjacent to AP-3, AP-3 is adjacent to AP-2, and AP-2 is adjacent to AP-1.

S2: Construct a network topology structure corresponding to multiple wireless devices according to the wireless device distribution information around each wireless device.

In an optional implementation manner, after performing step S1302, the above method further includes:

S3: Receive a release signal from the first wireless device, where the release signal is used to instruct the first wireless device to release air interface resources, and the first wireless device is any one of multiple wireless devices;

S4: According to the occupying sequence, notify the second wireless device to occupy the air interface resources, and the second wireless device is the first wireless device located after the first wireless device in the occupying sequence.

During specific implementation, the second wireless device may be notified that the second wireless device occupies the air interface resource by sending indication information for indicating the second wireless device to occupy the air interface resource.

In an optional implementation manner, the management device may be an independent wireless device, or a certain wireless device among multiple wireless devices; the management device includes a wireless access point AP.

In addition, when considering actual applications, there may be some wireless devices that do not support cooperative sending and receiving of data in the order of occupation, in order to ensure that such wireless devices can occupy air interface resources to send and receive data. In an optional implementation manner, the management device may determine the period during which multiple wireless devices take turns occupying air interface resources according to the determined occupancy sequence and the occupancy duration of multiple wireless devices involved in the occupancy sequence; When the device takes turns for the first number of cycles, it indicates that the last wireless device in the occupancy sequence stops notifying the next wireless device to occupy air interface resources after the occupancy ends, so that the air interface is idle for a period of time, so that it is not supported according to the occupancy. Wireless devices that cooperate in order to send and receive data occupy air interface resources. The first number can be set according to actual conditions, such as 3, which is not limited here.

Based on the same technical concept, referring to FIG. 14, an embodiment of the present application provides an air interface resource scheduling apparatus 1400, which is used to perform the foregoing air interface resource scheduling method. The air interface resource scheduling apparatus 1400 may be a first wireless device or It may be a device set in the first wireless device, or a device associated with the first wireless device. The air interface resource scheduling device 1400 includes a receiving module 1401, a processing module 1402, and a sending module 1403. in:

The receiving module 1401 is configured to receive first indication information, where the first indication information is used to indicate that the first wireless device occupies air interface resources;

The processing module 1402 is used to occupy air interface resources to send and receive data;

The sending module 1403 is configured to release the air interface resources when the first duration is reached, and notify the second wireless device to occupy the air interface resources.

In an optional implementation manner, the receiving module 1401 is specifically configured to:

Receiving the first indication information from a third wireless device, where the third wireless device is a wireless device that is adjacent to the first wireless device in order of occupation and is located before the first wireless device; or,

Receive the first instruction information from the management device.

In an optional implementation manner, the sending module 1403 is specifically configured to:

Sending second indication information to the second wireless device, where the second indication information is used to indicate that the second wireless device occupies air interface resources; or,

Send a release signal to the management device to instruct the second wireless device to occupy the air interface resource through the management device; wherein the release signal is used to instruct the first wireless device to release the air interface resource.

In an optional implementation manner, the first wireless device is a wireless access point AP; the first indication information includes permission to send a CTS message.

Based on the same technical concept, referring to FIG. 15, an embodiment of the present application provides an air interface resource scheduling apparatus 1500, which is used to perform the above-mentioned another air interface resource scheduling method. The air interface resource scheduling apparatus 1500 may be a management device or It is a device set in the management device, and may also be a device associated with the management device. The air interface resource scheduling device 1500 includes a processing module 1501 and a sending module 1502. in:

The processing module 1501 is configured to determine the occupancy sequence of the air interface resources occupied by the multiple wireless devices according to the network topology structure corresponding to the multiple wireless devices;

The sending module 1502 is used to send the occupied sequence to multiple wireless devices.

In an alternative embodiment,

The processing module 1501 is further configured to execute for each wireless device among the multiple wireless devices:

According to the duration control parameters, determine the duration of the wireless device's occupation of air interface resources; among them, the duration control parameters include one or more of the occupancy sequence, the service delay requirements of multiple wireless devices included in the network topology, and the service traffic of the wireless devices ；

The sending module 1502 is also used to send the duration to the wireless device.

In an optional implementation manner, the processing module 1501 is further configured to:

Obtain wireless device distribution information around each wireless device among multiple wireless devices;

According to the wireless device distribution information around each wireless device, a network topology structure corresponding to multiple wireless devices is constructed.

In an optional implementation manner, the device 1500 further includes a receiving module 1503;

The receiving module 1503 is configured to receive a release signal from the first wireless device, where the release signal is used to instruct the first wireless device to release air interface resources, and the first wireless device is any one of a plurality of wireless devices;

The sending module 1502 is further configured to notify the second wireless device to occupy air interface resources according to the occupying sequence, and the second wireless device is the first wireless device located after the first wireless device in the occupying sequence.

Based on the same concept, as shown in FIG. 16, a communication device 1600 is provided for this application. Exemplarily, the communication device 1600 may be a chip or a chip system. Optionally, the chip system in the embodiments of the present application may be composed of chips, or may include chips and other discrete devices.

The communication apparatus 1600 may include at least one processor 1610, and the apparatus 1600 may also include at least one memory 1620 for storing computer programs, program instructions, and/or data. The memory 1620 and the processor 1610 are coupled. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, and may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The processor 1610 may operate in cooperation with the memory 1620. The processor 1610 may execute a computer program stored in the memory 1620. Optionally, at least one of the at least one memory 1620 may be included in the processor 1610.

The communication device 1600 may further include a transceiver 1630, and the communication device 1600 may exchange information with other devices through the transceiver 1630. The transceiver 1630 may be a circuit, a bus, a transceiver, or any other device that can be used for information exchange.

In a possible implementation manner, the communication apparatus 1600 may be applied to a first wireless device. Specifically, the communication apparatus 1600 may be the first wireless device, or may be capable of supporting the first wireless device, and implement any of the above-mentioned embodiments. A device that functions as the first wireless device. The memory 1620 stores necessary computer programs, program instructions, and/or data to implement the functions of the first wireless device in any of the foregoing embodiments. The processor 1610 can execute the computer program stored in the memory 1620 to complete the method executed by the first wireless device in any of the foregoing embodiments.

In a possible implementation manner, the communication device 1600 may be applied to a management device. Specifically, the communication device 1600 may be a management device, or may be a device capable of supporting the management device to implement the function of the management device in any of the foregoing embodiments. The memory 1620 stores necessary computer programs, program instructions, and/or data to implement the functions of the management device in any of the above embodiments. The processor 1610 can execute the computer program stored in the memory 1620 to complete the method executed by the management device in any of the foregoing embodiments.

The embodiment of the present application does not limit the specific connection medium between the transceiver 1630, the processor 1610, and the memory 1620. In the embodiment of the present application, the memory 1620, the processor 1610, and the transceiver 1630 are connected by a bus in FIG. 16, and the bus is represented by a thick line in FIG. It is not limited. The bus can be divided into an address bus, a data bus, a control bus, and so on. For ease of representation, only one thick line is used in FIG. 16, but it does not mean that there is only one bus or one type of bus.

In the embodiments of the present application, the processor may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and may implement or Perform the methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in combination with the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.

In the embodiment of the present application, the memory may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), for example Random-access memory (RAM). The memory may also be any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto. The memory in the embodiments of the present application may also be a circuit or any other device capable of implementing a storage function, for storing computer programs, program instructions and/or data.

Based on the above embodiment, referring to FIG. 17, an embodiment of the present application further provides another communication device 1700, including: an interface circuit 1710 and a processor 1720;

The interface circuit 1710 is used to receive code instructions and transmit them to the processor;

The processor 1720 is configured to run the code instructions to execute the method executed by the first wireless device in any of the foregoing embodiments or the method executed by the management device in any of the foregoing embodiments.

Based on the above embodiments, the embodiments of the present application also provide a readable storage medium that stores instructions, and when the instructions are executed, the method executed by the first wireless device in any of the above embodiments is Implement, or enable the method executed by the management device in any of the foregoing embodiments to be implemented. The readable storage medium may include: U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk and other media that can store program codes.

Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

This application is described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of this application. It should be understood that each process and/or block in the flowchart and/or block diagram, and a combination of processes and/or blocks in the flowchart and/or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are used to generate A device that implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device. The device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operating steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment. The instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present application without departing from the scope of the embodiments of the present application. In this way, if these modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

A method for scheduling air interface resources, which is characterized in that it is applied to a first wireless device and includes:

Receiving first indication information, where the first indication information is used to indicate that the first wireless device occupies air interface resources;

Occupying the air interface resources to send and receive data;

When the first duration is reached, the air interface resources are released, and the second wireless device is notified to occupy the air interface resources.
The method of claim 1, wherein the second wireless device is the first wireless device after the first wireless device in the occupation sequence, and the occupation sequence is based on the first wireless device And the network topology where the second wireless device is located.
The method according to claim 2, wherein the first duration is determined according to duration control parameters, and the duration control parameters include the occupancy sequence and the services of multiple wireless devices included in the network topology. One or more of the delay requirement and the service flow of the first wireless device.
The method according to claim 2 or 3, wherein the receiving the first indication information comprises:

Receiving first indication information from a third wireless device, the third wireless device being a wireless device that is adjacent to the first wireless device in the occupation sequence and located before the first wireless device; or,

Receive the first instruction information from the management device.
The method according to any one of claims 1 to 4, wherein the notifying the second wireless device to occupy the air interface resource comprises:

Sending second indication information to the second wireless device, where the second indication information is used to indicate that the second wireless device occupies the air interface resource; or,

Send a release signal to the management device to instruct the second wireless device to occupy the air interface resource through the management device; wherein the release signal is used to instruct the first wireless device to release the air interface resource.
The method according to any one of claims 1-5, wherein the first wireless device is a wireless access point AP; and the first indication information includes permission to send a CTS message.
A method for scheduling air interface resources, which is characterized in that it is applied to a management device and includes:

Determine the order in which the multiple wireless devices occupy the air interface resources according to the network topology structures corresponding to the multiple wireless devices;

The occupation sequence is sent to the plurality of wireless devices.
The method according to claim 7, wherein the method further comprises:

For each wireless device in the multiple wireless devices, execute:

Determine the length of time the wireless device occupies the air interface resources according to the duration control parameter; wherein, the duration control parameter includes the occupancy sequence, the service delay requirements of multiple wireless devices included in the network topology, and the One or more of the business traffic of wireless devices;

Send the duration to the wireless device.
The method according to claim 7 or 8, wherein the method further comprises:

Acquiring wireless device distribution information around each wireless device in the plurality of wireless devices;

According to the wireless device distribution information around each wireless device, a network topology structure corresponding to the multiple wireless devices is constructed.
9. The method according to any one of claims 7-9, wherein the method further comprises:

Receiving a release signal from a first wireless device, where the release signal is used to instruct the first wireless device to release the air interface resource, and the first wireless device is any one of the multiple wireless devices;

According to the occupying sequence, the second wireless device is notified to occupy the air interface resource, and the second wireless device is the first wireless device located after the first wireless device in the occupying sequence.
The method according to any one of claims 7-10, wherein the management device comprises a wireless access point (AP).
An apparatus for scheduling air interface resources, which is characterized in that it is set in a first wireless device and includes:

A receiving module, configured to receive first indication information, where the first indication information is used to indicate that the first wireless device occupies air interface resources;

A processing module, configured to occupy the air interface resource to send and receive data;

The sending module is configured to release the air interface resource when the first duration is reached, and notify the second wireless device to occupy the air interface resource.
The apparatus according to claim 12, wherein the second wireless device is the first wireless device after the first wireless device in the occupation sequence, and the occupation sequence is based on the first wireless device And the network topology where the second wireless device is located.
The apparatus according to claim 13, wherein the first duration is determined according to duration control parameters, and the duration control parameters include the occupancy sequence and the services of multiple wireless devices included in the network topology. One or more of the delay requirement and the service flow of the first wireless device.
The device according to claim 13 or 14, wherein the receiving module is specifically configured to:

Receiving first indication information from a third wireless device, the third wireless device being a wireless device that is adjacent to the first wireless device in the occupation sequence and located before the first wireless device; or,

Receive the first instruction information from the management device.
15. The device according to any one of claims 12-15, wherein the sending module is specifically configured to:

Sending second indication information to the second wireless device, where the second indication information is used to indicate that the second wireless device occupies the air interface resource; or,

Send a release signal to the management device to instruct the second wireless device to occupy the air interface resource through the management device; wherein the release signal is used to instruct the first wireless device to release the air interface resource.
The apparatus according to any one of claims 12-16, wherein the first wireless device is a wireless access point AP; and the first indication information includes permission to send a CTS message.
An air interface resource scheduling device, which is characterized in that it is set in a management device and includes:

A processing module, configured to determine the order in which the multiple wireless devices occupy the air interface resources according to the network topology structures corresponding to the multiple wireless devices;

The sending module is used to send the occupied sequence to the multiple wireless devices.
The device of claim 18, wherein:

The processing module is also used for:

For each wireless device in the multiple wireless devices, execute:

Determine the length of time the wireless device occupies the air interface resources according to the duration control parameter; wherein, the duration control parameter includes the occupancy sequence, the service delay requirements of multiple wireless devices included in the network topology, and the One or more of the business traffic of wireless devices;

The sending module is also used to send the duration to the wireless device.
The device according to claim 18 or 19, wherein the processing module is further configured to:

Acquiring wireless device distribution information around each wireless device in the plurality of wireless devices;

According to the wireless device distribution information around each wireless device, a network topology structure corresponding to the multiple wireless devices is constructed.
The device according to any one of claims 18-20, wherein the device further comprises a receiving module;

The receiving module is configured to receive a release signal from a first wireless device, where the release signal is used to instruct the first wireless device to release the air interface resource, and the first wireless device is one of the multiple wireless devices Any one of

The sending module is further configured to notify a second wireless device of occupying the air interface resource according to the occupying sequence, and the second wireless device is the first wireless device located after the first wireless device in the occupying sequence. equipment.
The apparatus according to any one of claims 18-21, wherein the management device comprises a wireless access point (AP).
A communication device, characterized by comprising: a processor and a memory;

The memory is used to store a computer program;

The processor is configured to execute a computer program stored in the memory, so that the communication device executes the method according to any one of claims 1 to 6, or executes any one of claims 7 to 11 The method described in the item.
A communication device, characterized by comprising: a processor and an interface circuit;

The interface circuit is used to receive code instructions and transmit them to the processor;

The processor is configured to run the code instructions to execute the method according to any one of claims 1 to 6, or execute the method according to any one of claims 7 to 11.
A readable storage medium, characterized in that the readable storage medium stores instructions, and when the instructions are executed, the method according to any one of claims 1 to 6 is realized, or The method of any one of claims 7 to 11 is implemented.