WO2018053894A1

WO2018053894A1 - Internet-of-things access point handover method and device based on transmission rate

Info

Publication number: WO2018053894A1
Application number: PCT/CN2016/103369
Authority: WO
Inventors: 杜光东
Original assignee: 深圳市盈广现代网络设备有限公司
Priority date: 2016-09-20
Filing date: 2016-10-26
Publication date: 2018-03-29
Also published as: CN107846715A

Abstract

Disclosed are an Internet-of-things access point handover method and device based on a transmission rate. The method comprises the following steps: an Internet-of-things access point receives data packets sent by Internet-of-things access terminals; the Internet-of-things access point periodically detects a transmission rate of each Internet-of-things access terminal; the Internet-of-things access point determines whether the transmission rate is less than a rate threshold, and if the transmission rate of a first Internet-of-things access terminal is less than the rate threshold, hands over the first Internet-of-things access terminal to a candidate Internet-of-things access point. The technical solution provided by the present invention has an advantage of good user experience.

Description

Transmission rate based access point switching method and device for internet of things

This application claims the priority of the Chinese Patent Application filed on September 20, 2016, the Chinese Patent Office, the application number is 201610834357.9, and the invention is entitled "IoT-based transmission rate-based access point switching method and device", the above prior application The content is incorporated into this text by way of introduction.

Technical field

The present application relates to the field of communications, and in particular, to an IoT transmission rate based access point switching method and apparatus.

Background technique

The Internet of Things is an important part of the new generation of information technology and an important stage of development in the era of "informatization." Its English name is: "Internet of things (IoT)". As the name suggests, the Internet of Things is the Internet that connects things. This has two meanings: First, the core and foundation of the Internet of Things is still the Internet, which is an extended and extended network based on the Internet; Second, its client extends and extends to any item and item for information. Exchange and communication, that is, things and things.

The Internet of Things solves the interconnection between objects and the exchange of data between objects. The existing Internet of Things is connected to the Internet based on IoT access points (APs). When the access point accesses the data to the Internet, the access point cannot be switched according to the data transmission condition, which may cause congestion of the transmission data and affect the customer experience.

Summary of the invention

The application provides an Internet of Things transmission rate based access point switching method. It can increase the transmission rate of IoT data and improve the user experience.

In a first aspect, an IoT transmission rate based access point switching method is provided, the method comprising the following steps:

The Internet of Things access point receives the data packet sent by the IoT access terminal;

The Internet of Things access point periodically detects the transmission rate of each IoT access terminal;

The IoT access point determines whether the transmission rate is lower than a rate threshold. If the transmission speed of the first IoT access terminal is lower than the rate threshold, the first IoT access terminal is switched to the standby IoT connection. Entry point.

Optionally, the switching the first IoT access terminal to the alternate IoT access point comprises:

The IoT access point sends a handover request to the alternate IoT access point, where the handover request includes: an identifier of the first IoT access terminal and a frame sequence number;

The IoT access point receives the handover response sent by the alternate IoT access point after the handover is successful.

Optionally, the method further includes:

The IoT access point receives a handover request sent by another IoT access point, where the handover request includes: an identifier of the second IoT access terminal and a frame sequence number;

The IoT access point stores the frame sequence number, and sends a connection request to the second IoT access terminal, where the destination address of the connection request is an identifier of the second IoT access terminal;

The IoT access point receives the connection response sent by the second IoT access terminal, and the IoT access point establishes a connection with the second IoT access terminal, and sends a handover response to the other IoT access point.

Optionally, the method further includes: after the IoT access point periodically detects the transmission rate of each IoT access terminal:

The IoT access point periodically receives the load rate sent by each alternate IoT access point.

Switching the first IoT access terminal to a standby IoT access point with the lowest load rate.

In a second aspect, an IoT transmission rate based access point switching device is provided, the device comprising:

a receiving unit, configured to receive a data packet sent by the Internet of Things access terminal;

a detecting unit, configured to periodically detect a transmission rate of each IoT access terminal;

a determining unit, configured to determine whether the transmission rate is lower than a rate threshold;

The switching unit is configured to switch the first IoT access terminal to the standby IoT access point if the transmission speed of the first IoT access terminal is lower than a rate threshold.

Optionally, the switching unit is configured to send a handover request to the standby IoT access point, where the handover request includes: an identifier of the first IoT access terminal and a frame serial number; and receiving the standby The handover response sent by the networked access point after the handover is successful.

Optionally, the receiving unit is further configured to receive a handover request sent by another IoT access point, where the handover request includes: an identifier of the second IoT access terminal and a frame serial number; the device further includes:

a storage unit, configured to store the frame serial number;

a sending unit, configured to send a connection request to the second Internet of Things access terminal, where the destination address of the connection request is an identifier of the second IoT access terminal;

Optionally, the receiving unit is further configured to receive a load rate sent by each standby IoT access point.

Optionally, the switching unit is specifically configured to switch the first Internet of Things access terminal to a standby IoT access point with the lowest load rate.

The technical solution provided by the present invention periodically detects the transmission rate of the Internet of Things access terminal, and determines the transmission rate. When the speed threshold is lower, the IoT access terminal is switched to the standby IoT access point. Communication is carried out to ensure the rate of data transmission and improve the effectiveness of the technology.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are some embodiments of the present application, Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a schematic flow chart of a repeater-based data routing method;

2 is a flow chart of a method for switching an access point based on a transmission rate of an Internet of Things;

Figure 3 is a schematic diagram of the Internet of Things

4 is a schematic flowchart of a method for switching an access point based on a transmission rate of an Internet of Things according to an embodiment of the present application;

FIG. 5 is a flowchart of a handover method according to an embodiment of the present application; FIG.

FIG. 6 is a schematic flowchart of a method for switching an access point based on a transmission rate of an Internet of Things according to another embodiment of the present application; FIG.

7 is a schematic structural diagram of an Internet of Things transmission rate based access point switching apparatus provided by the present application;

FIG. 8 is a schematic structural diagram of an Internet of Things access terminal provided by the present application.

detailed description

Before discussing the exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as a process or method depicted as a flowchart. Although the flowcharts describe various operations as a sequential process, many of the operations can be implemented in parallel, concurrently or concurrently. In addition, the order of operations can be rearranged. The process may be terminated when its operation is completed, but may also have additional steps not included in the figures. The processing may correspond to methods, functions, procedures, subroutines, subroutines, and the like.

By "computer device", also referred to as "computer" in the context, is meant an intelligent electronic device that can perform predetermined processing, such as numerical calculations and/or logical calculations, by running a predetermined program or instruction, which can include a processor and The memory is executed by the processor to execute a predetermined process pre-stored in the memory to execute a predetermined process, or is executed by hardware such as an ASIC, an FPGA, a DSP, or the like, or a combination of the two. Computer devices include, but are not limited to, servers, personal computers, notebook computers, tablets, smart phones, and the like.

The methods discussed below, some of which are illustrated by flowcharts, can be implemented in hardware, software, firmware, middleware, microcode, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware or microcode, the program code or code segments to carry out the necessary tasks can be stored in a machine or computer readable medium, such as a storage medium. The processor(s) can perform the necessary tasks.

The specific structural and functional details disclosed are merely representative and are for the purpose of describing exemplary embodiments of the invention. The present invention may, however, be embodied in many alternative forms and should not be construed as being limited only to the embodiments set forth herein.

It should be understood that although the terms "first," "second," etc. may be used herein to describe the various elements, these elements should not be limited by these terms. These terms are used only to distinguish one unit from another. For example, a first unit may be referred to as a second unit without departing from the scope of the exemplary embodiments, and similarly the second unit may be referred to as a first unit. The term "and/or" used herein includes any and all combinations of one or more of the associated listed items.

The terminology used herein is for the purpose of describing the particular embodiments, The singular forms "a", "an", It is also to be understood that the terms "comprising" and """ Other features, integers, steps, operations, units, components, and/or combinations thereof.

It should also be noted that, in some alternative implementations, the functions/acts noted may occur in a different order than that illustrated in the drawings. For example, two figures shown in succession may in fact be executed substantially concurrently or sometimes in the reverse order, depending on the function/acts involved.

The invention is further described in detail below with reference to the accompanying drawings.

According to an aspect of the present invention, an Internet of Things transmission rate based access point switching method is provided. The method is applied to the Internet of Things network as shown in FIG. 1. As shown in FIG. 1, the Internet of Things includes: an Internet of Things access terminal 10, an Internet of Things access point AP20, and a wireless access controller 30. The above-mentioned Internet of Things access terminal may have different manifestations according to different situations. For example, the Internet of Things access terminal may specifically be: a mobile phone, a tablet computer, a computer, etc., of course, it may also include other devices with networking functions. For example, smart TV, smart air conditioner, smart water bottle or some smart devices of the Internet of Things, the above-mentioned Internet of Things access terminal 10 is connected to the AP 20 wirelessly, and the AP 20 accesses the Internet through another way (ie, a connection method different from the wireless mode). The foregoing wireless methods include, but are not limited to, Bluetooth, WIFI, etc., and the other manner may be LTE or wired. In FIG. 1, the wired mode is taken as an example. For convenience of description, only one solid line is used herein. The AP may be a router, and may be other APs, such as a mobile phone with a hotspot function.

The above-mentioned wireless access controller 30 may be a personal computer (PC) according to the size of the Internet of Things. Of course, in practical applications, it may also be multiple PCs or servers. The specific embodiment of the present invention is not limited. The specific manifestation of the above wireless access controller.

Referring to FIG. 2, FIG. 2 is a method for switching an access point based on a transmission rate of an Internet of Things according to the present invention. The method is as shown in FIG. 2, and includes the following steps:

Step S201: The Internet of Things access point receives the data packet sent by the Internet of Things access terminal;

The data packet sent by the receiving IoT access terminal in the above step S201 is only sent by means of a wireless connection, and the wireless mode includes but is not limited to: Bluetooth, Wireless Fidelity (WIFI) or Zigbee. The method in which the above WIFI needs to comply with the IEEE802.11b standard.

It should be noted that the Internet of Things and APs here are only for wireless APs, because for the Internet of Things, the number of devices accessed by them is large. For APs, if the connection is through a wired connection, the number of APs to access first will be The limitation is, and for the home, the wired connection is unimaginable for the wiring of the home user, and the cost of the cable is also very high, so the Internet of Things access terminal in the technical solution of the present invention The connection between APs is limited to wireless connections.

The above-mentioned Internet of Things access terminals may have different expressions according to different scenarios. For example, in the home appliance Internet of Things, the above-mentioned Internet of Things access terminals may specifically be: smart televisions, smart air conditioners, smart refrigerators, and the like having communication functions. In the intelligent cell, the foregoing IoT access terminal may specifically be: a smart electric light, a smart door, a smart door and window controller, a smart curtain, and the like, and the specific implementation manner of the present invention does not limit the specific performance of the foregoing Internet of Things access terminal. form.

Step S202: The Internet of Things access point periodically detects the transmission rate of each IoT access terminal.

The period in the above step S202 can be set by the user. For example, in a specific embodiment of the present invention, an external setting interface can be set on the Internet of Things access point, and the external device is connected to the IoT access point. The above cycle is determined, of course, for the convenience of the user, the above cycle can also be set by the manufacturer, and the present invention does not limit the specific value of the above cycle.

Step S203: Determine whether the transmission rate is lower than a rate threshold. If the transmission speed of the first IoT access terminal is lower than the rate threshold, the first IoT access terminal is switched to the standby IoT access point.

For the method of the above-mentioned step S203, the method for switching the IoT access terminal to the standby IoT access point can be referred to the description of another embodiment, and details are not described herein.

The specific method for switching the first Internet of Things access terminal to the standby IoT access point may be:

Extracting a rate curve of each alternate IoT access point, and calculating whether the rate curve changes in a set time period is increasing or decreasing, and the current rate of the standby IoT access point is greater than the rate threshold and the trend of the rate curve It is an incremental IoT access point as a switched IoT access point.

The purpose of setting this scheme is mainly to avoid switching the access point too frequently, because for the main object For the network access point, the rate is relatively low, but for the IoT access point, the transmission rate is changed, so it is necessary to obtain the trend of the transmission rate during the set time period. First, it cannot be decremented. If it is decremented, then the transmission rate will soon be lower than the rate threshold again after switching to the access point, so that it will switch again, even if there is a null handover, so it is necessary to find an incremental trend. Networked access point.

Optionally, after the step S203, the foregoing method may further include:

The IoT access point receives a handover request sent by another IoT access point, where the handover request includes: an identifier of the second IoT access terminal and a frame sequence number (a frame sequence number corresponding to the second IoT access terminal) ;

The technical solution provided by the present invention determines the transmission rate by periodically detecting the transmission rate of the Internet of Things access terminal, and when the speed threshold is lower, the IoT access terminal is switched to the standby IoT access point. Communication, thus ensuring the rate of data transmission, improves the effectiveness of the technology.

According to another aspect of the present invention, an Internet of Things transmission rate based access point switching method is provided. The method is applied to the object network shown in FIG. 3, as shown in FIG. 3, the object network includes: an Internet of Things access terminal 39, and a plurality of Internet of Things access points AP (for convenience of description) Here, a plurality of IoT access points are identified as AP21, AP22) and a wireless access controller 30. The above-mentioned Internet of Things access terminal may have different manifestations according to different situations. For example, the Internet of Things access terminal may specifically be: a mobile phone, a tablet computer, a computer, etc., of course, it may also include other devices with networking functions. For example, smart TV, smart air conditioner, smart water bottle or some intelligent devices of the Internet of Things, the above-mentioned Internet of Things access terminal 39 is connected to the AP 21 by wireless, wherein the AP 22 is the standby Internet of Things access point of the AP 21, and the AP 21 passes the other way. (that is, the connection mode different from the wireless mode) access to the Internet. Referring to FIG. 3, the ongoing wireless communication connection is indicated by a solid line, and the wireless communication connection is about to be connected by a dotted line. The above wireless methods include but are not limited to: Bluetooth, In the WIFI mode, the other way may be LTE or wired. Figure 3 is wired as an example. For convenience of representation, only one solid line is used here. The AP may be a router, and may be other APs, such as a mobile phone with a hotspot function.

Referring to FIG. 4, FIG. 4 is a method for switching an access point based on a transmission rate of an Internet of Things according to the present invention. The method is as shown in FIG. 4, and includes the following steps:

Step S401: The Internet of Things access point receives the data packet sent by the Internet of Things access terminal;

The data packet sent by the receiving IoT access terminal in the above step S401 is only sent by means of a wireless connection, and the wireless mode includes but is not limited to: Bluetooth, Wireless Fidelity (WIFI) or Zigbee. The method in which the above WIFI needs to comply with the IEEE802.11b standard.

Step S402, the Internet of Things access point periodically detects the transmission rate of each IoT access terminal;

The period in the above step S402 can be set by the user. For example, in a specific embodiment of the present invention, an external setting interface can be set on the Internet of Things access point, and the external device is connected to the Internet of Things access point. The above cycle is determined, of course, for the convenience of the user, the above cycle can also be set by the manufacturer, and the present invention does not limit the specific value of the above cycle.

Step S403: Determine whether the transmission rate is lower than a rate threshold. If the transmission speed of the IoT access terminal is lower than the rate threshold, send a handover request to the standby IoT access point AP22, where the handover is performed. The request includes but is not limited to: the identifier and frame serial number of the IoT access terminal;

The frame in the above step S403 may be: a medium access control protocol data unit (MPDU), and the frame sequence number may be a number indicating the order in which the frame is sent. The identifier of the IoT access terminal may be specifically: the MAC address of the IoT access terminal. Of course, in the actual application, the IoT access terminal may also be identified by other means, for example, by using an IP address or other identifier to identify the Internet of Things access terminal.

Step S404: The IoT access point receives the handover response sent by the alternate IoT access point, and the handover response may include an indication that the IoT access terminal is successfully handed over, and the indication value may be that the handover succeeds or the handover is unsuccessful. Specifically, it may be represented by a bit in the header field of the handover response. For example, a handover success is indicated by 1 and a handover is unsuccessful by 0. Of course, the handover success may be 0, and the handover is unsuccessful. The invention is not limited to the specific forms of the above description.

Step S404: The IoT access terminal deletes the information of the IoT access terminal, where the information of the IoT access terminal includes but is not limited to: a frame serial number.

The deletion is for the purpose of placing the IoT access terminal to switch from the alternate IoT access point AP22 back to the IoT access point AP21.

The method provided by the present invention carries the frame serial number in the handover request and sends it to the standby IoT access point during the handover, so that the frame serial number of the alternate IoT access point and the frame serial number of the IoT access terminal are It is completely consistent, because for the handover, it needs to last for a period of time. If the frame serial number is not sent to the alternate IoT access point, the packet loss may occur due to the difference of the frame serial number. The case of packet loss occurs, so it has the advantage of reducing the packet loss rate.

It should be noted that after the standby IoT access point receives the switching request, the operation steps shown in FIG. 5 may be performed. The step is as shown in FIG. 5, and includes:

Step S501: The standby IoT access point stores the frame serial number, and sends a connection request to the IoT access terminal, where the destination identifier of the connection request may be an identifier of the IoT access terminal.

Step S502: The standby IoT access point receives the connection response sent by the IoT access terminal.

Step S503: The standby Internet of Things access point establishes a wireless connection with the Internet of Things access terminal, and sends a handover response to the Internet of Things access point.

According to still another aspect of the present invention, an Internet of Things transmission rate based access point switching method is provided. The method is applied in the object network as shown in FIG. 3, as shown in FIG. The network includes: an Internet of Things access terminal 39, a plurality of IoT access points AP (for convenience of description, a plurality of IoT access points are identified as AP21, AP22 herein) and a wireless access controller 30. The above-mentioned Internet of Things access terminal may have different manifestations according to different situations. For example, the Internet of Things access terminal may specifically be: a mobile phone, a tablet computer, a computer, etc., of course, it may also include other devices with networking functions. For example, smart TV, smart air conditioner, smart water bottle or some intelligent devices of the Internet of Things, the above-mentioned Internet of Things access terminal 39 is connected to the AP 21 by wireless, wherein the AP 22 is the standby Internet of Things access point of the AP 21, and the AP 21 passes the other way. (that is, the connection mode different from the wireless mode) access to the Internet. Referring to FIG. 3, the ongoing wireless communication connection is indicated by a solid line, and the wireless communication connection is about to be connected by a dotted line. The above wireless methods include but are not limited to: Bluetooth, In the WIFI mode, the other way may be LTE or wired. In FIG. 3, the wired mode is taken as an example. For convenience of description, only one solid line is used. The AP may be a router, and may be other APs, such as a mobile phone with a hotspot function.

Referring to FIG. 6, FIG. 6 is a method for switching an access point based on a transmission rate of an Internet of Things according to the present invention. The method is as shown in FIG.

Step S601: The Internet of Things access point receives the data packet sent by the Internet of Things access terminal.

The data packet sent by the receiving IoT access terminal in the above step S601 is only sent by means of a wireless connection, and the wireless mode includes but is not limited to: Bluetooth, Wireless Fidelity (WIFI) or Zigbee. The method in which the above WIFI needs to comply with the IEEE802.11b standard.

The above-mentioned Internet of Things access terminals may have different manifestations according to different scenarios. For example, in the home appliance Internet of Things, the above-mentioned Internet of Things access terminals may specifically be: smart television, smart air conditioner, smart A terminal device having a communication function, such as a refrigerator, in the smart cell, the foregoing IoT access terminal may specifically be: a smart electric light, a smart door, a smart door and window controller, a smart curtain, etc., and the specific embodiment of the present invention is not limited to the above The specific form of representation of a networked access terminal.

Step S602: The Internet of Things access point periodically detects the transmission rate of each IoT access terminal.

The period in the above step S602 can be set by the user. For example, in a specific embodiment of the present invention, an external setting interface can be set on the Internet of Things access point, and the external device is connected to the Internet of Things access point. The above cycle is determined, of course, for the convenience of the user, the above cycle can also be set by the manufacturer, and the present invention does not limit the specific value of the above cycle.

Step S603: The IoT access point receives the load rate sent by each standby IoT access point.

The implementation of the foregoing step S603 may specifically be: receiving the load rate sent by each standby IoT access point by using a wired manner, and the specific implementation scheme may adopt a load rate in the heartbeat message, because for each Internet of Things connection In terms of the entry point, the load rate is changed in real time, so how to get the latest load rate is a problem. Here, the heartbeat message carries the load rate, which has two advantages. First, the standby object can be detected by the heartbeat message. Whether the network access point is normal (if the heartbeat message can be received, that is, it is determined to be normal, otherwise, it is determined to be faulty), and the second heartbeat message is originally sent periodically, so that the IoT access point can obtain each standby Internet of Things in real time. The load rate sent by the access point.

Step S604: The Internet of Things access point determines whether the transmission rate is lower than a rate threshold. If the transmission speed of the IoT access terminal is lower than a rate threshold, the IoT access terminal is switched to the standby IoT access with the lowest load rate. point.

The above step S604 selects the standby IoT access point with the lowest load rate to effectively distribute the load, avoiding the load of the IoT access point being too high, exceeding the load of the access point, and causing the load of the standby IoT access point to be excessive.

Referring to FIG. 7, FIG. 7 provides an Internet of Things transmission rate based access point switching apparatus 700, the apparatus comprising:

The receiving unit 701 is configured to receive a data packet sent by the Internet of Things access terminal.

The detecting unit 702 is configured to periodically detect a transmission rate of each IoT access terminal;

The determining unit 703 is configured to determine whether the transmission rate is lower than a rate threshold;

The switching unit 704 is configured to switch the first IoT access terminal to the standby IoT access point if the transmission speed of the first IoT access terminal is lower than a rate threshold.

Optionally, the switching unit 704 is configured to send a handover request to the standby IoT access point, where the handover request includes: an identifier of the first IoT access terminal and a frame serial number; and receiving an alternate Internet of Things The handover response sent by the access point after the handover is successful.

Optionally, the receiving unit 701 is further configured to receive a handover request sent by another IoT access point, where the handover request includes: an identifier of the second Internet of Things access terminal and a frame serial number; the device further includes :

a storage unit 705, configured to store the frame serial number;

The sending unit 706 is configured to send a connection request to the second IoT access terminal, where the destination address of the connection request is an identifier of the second IoT access terminal, and send to the other IoT access point Switch the response.

Optionally, the receiving unit 701 is further configured to receive a load rate sent by each standby IoT access point.

Optionally, the switching unit 704 is specifically configured to switch the first Internet of Things access terminal to a standby IoT access point with the lowest load rate.

Referring to FIG. 8, FIG. 8 is an Internet of Things access point 800 provided by the present invention. The Internet of Things access point may be a node deployed in an Internet system, and the Internet system may further include: an Internet of Things access terminal and a wireless device. Accessing the controller, the Internet of Things access point 800 includes, but is not limited to, a computer, a server, etc., as shown in FIG. 8, the Internet of Things access point 800 includes a processor 901, a memory 902, a wireless transceiver 903, and Bus 904. The wireless transceiver 903 is configured to transmit and receive data with and among external devices, such as other devices in the interconnection system, including but not limited to: repeaters, core network devices, and the like. The number of processors 901 in the Internet of Things access point 800 can be one or more. In some embodiments of the present application, processor 901, memory 902, and wireless transceiver 903 may be connected by a bus system or other means. For the meanings and examples of the terms involved in this embodiment, reference may be made to the corresponding embodiment of FIG. 2 or FIG. 6, and details are not described herein again.

The program code can be stored in the memory 902. The processor 901 is configured to call the program code stored in the memory 902, and is configured to perform the following operations:

a wireless transceiver 903, configured to receive a data packet sent by the Internet of Things access terminal;

The processor 901 is configured to identify the type of the Internet of Things access terminal, and query the first encryption unit corresponding to the type in the pre-configured type and the encryption unit mapping table according to the type, and invoke the first encryption. The unit encrypts the data packet.

The wireless transceiver 903 is further configured to send the encrypted data packet to the wireless access controller.

Optionally, the processor 901 and the wireless transceiver 903 can also be used to perform the refinement and the steps of the steps and steps in the embodiment shown in FIG. 3 or FIG. 6.

It should be noted that the processor 901 herein may be a processing component or a general term of multiple processing components. For example, the processing component may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application. For example, one or more digital singal processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs).

The memory 903 may be a storage device or a collective name of a plurality of storage elements, and is used to store executable program code or parameters, data, and the like required for the application running device to operate. And the memory 903 may include random access memory (RAM), and may also include non-volatile memory such as a magnetic disk memory, a flash memory, or the like.

The bus 904 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 8, but it does not mean that there is only one bus or one type of bus.

The user equipment may also include an input and output device, i.e., an external interface 905, coupled to the bus 904 for connection to other portions, such as the processor 901, via a bus. The input/output device can provide an input interface for the operator, so that the operator can select the control item through the input interface, and can also be other interfaces through which other devices can be externally connected.

It should be noted that, for the foregoing various method embodiments, for the sake of brevity, they are all described as a series of action combinations, but those skilled in the art should understand that the present application is not limited by the described action sequence. Because some steps may be performed in other orders or concurrently in accordance with the present application. Secondly, those skilled in the art should also know that the embodiments described in the specification are excellent. In selected embodiments, the actions and modules involved are not necessarily required by the present application.

In the above embodiments, the descriptions of the various embodiments are different, and the parts that are not described in detail in a certain embodiment can be referred to the related descriptions of other embodiments.

A person skilled in the art may understand that all or part of the various steps of the foregoing embodiments may be performed by a program to instruct related hardware. The program may be stored in a computer readable storage medium, and the storage medium may include: Flash disk, read-only memory (English: Read-Only Memory, referred to as: ROM), random accessor (English: Random Access Memory, referred to as: RAM), disk or optical disk.

The content downloading method and the related device and system provided by the embodiments of the present application are described in detail. The principles and implementation manners of the present application are described in the specific examples. The description of the above embodiments is only used to help understand the present application. The method of application and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be understood. To limit the application.

Claims

An access point switching method based on a transmission rate of an Internet of Things, characterized in that the method comprises the following steps:

The Internet of Things access point receives the data packet sent by the IoT access terminal;

The Internet of Things access point periodically detects the transmission rate of each IoT access terminal;

The IoT access point determines whether the transmission rate is lower than a rate threshold. If the transmission speed of the first IoT access terminal is lower than the rate threshold, the first IoT access terminal is switched to the standby IoT access point. .
The method according to claim 1, wherein the switching the first IoT access terminal to the alternate IoT access point comprises:

The IoT access point sends a handover request to the alternate IoT access point, where the handover request includes: an identifier of the first IoT access terminal and a frame sequence number;

The IoT access point receives the handover response sent by the alternate IoT access point after the handover is successful.
The method of claim 1 further comprising:

The IoT access point receives a handover request sent by another IoT access point, where the handover request includes: an identifier of the second IoT access terminal and a frame sequence number;

The IoT access point stores the frame sequence number, and sends a connection request to the second IoT access terminal, where the destination address of the connection request is an identifier of the second IoT access terminal;

The IoT access point receives the connection response sent by the second IoT access terminal, and the IoT access point establishes a connection with the second IoT access terminal, and sends a handover response to the other IoT access point.
The method according to claim 1, wherein the method further comprises: after the IoT access point periodically detects the transmission rate of each IoT access terminal:

The IoT access point periodically receives the load rate sent by each alternate IoT access point.
The method according to claim 4, wherein the switching the first IoT access terminal to the alternate IoT access point comprises:

Switching the first IoT access terminal to a standby IoT access point with the lowest load rate.
An access point switching device for an Internet of Things based on a transmission rate, characterized in that the device comprises:

a receiving unit, configured to receive a data packet sent by the Internet of Things access terminal;

a detecting unit, configured to periodically detect a transmission rate of each IoT access terminal;

a determining unit, configured to determine whether the transmission rate is lower than a rate threshold;

The switching unit is configured to switch the first IoT access terminal to the standby IoT access point if the transmission speed of the first IoT access terminal is lower than a rate threshold.
The device according to claim 6, wherein the switching unit is configured to send a handover request to the standby IoT access point, where the handover request includes: an identifier of the first IoT access terminal, and Frame sequence number; receives the handover response sent by the alternate IoT access point after successful handover.
The apparatus according to claim 6, wherein the receiving unit is further configured to receive a handover request sent by another Internet of Things access point, where the handover request comprises: an identifier and a frame of the second Internet of Things access terminal Serial number; the device further includes:

a storage unit, configured to store the frame serial number;

a sending unit, configured to send a connection request to the second Internet of Things access terminal, where the destination address of the connection request is an identifier of the second IoT access terminal;

The IoT access point receives the connection response sent by the second IoT access terminal, and the IoT access point establishes a connection with the second IoT access terminal, and sends a handover response to the other IoT access point.
The apparatus according to claim 6, wherein the receiving unit is further configured to receive a load rate sent by each standby IoT access point.
The device according to claim 9, wherein the switching unit is specifically configured to switch the first Internet of Things access terminal to a standby IoT access point with the lowest load rate.