WO2019127230A1 - Network node wake-up method and device - Google Patents

Abstract

Provided are a method and a device for waking up a network node, the method comprises: the network node sends a service request to a gateway device, wherein the service request comprises a channel where the network node is located and a state of a channel adjacent to the channel where the network node is located; the network node receives a service response sent by the gateway device, wherein the service response comprises information of a wireless wake-up channel determined by the network device for the network node according to the channel where the network node is located and the channel adjacent to the channel where the network node is located; the network node enters the wireless wake-up channel indicated by the service response for sleeping; and the network node receives a wake-up signal sent by the gateway device; if it is determined that the received wake-up signal is a signal for waking up the network node, then the network node is woke up in the wireless wake-up channel and is switched to a working channel.

Description

Wake method and device for network node Technical field

The present application relates to the field of wireless communications technologies, and in particular, to a method and a device for waking up a network node.

Background technique

With the rapid development of the Internet of Things, environmental monitoring in the wild forests, unattended sensor network systems, monitoring in industrial environments, etc., as shown in Figure 1, require the use of a large number of battery-powered equipment and instruments, the equipment and instruments That is, the network node in wireless communication, in the above application environment, the network node needs to maintain a long life cycle and maintain a certain sensitivity.

In the prior art, the hardware node design technology is used to wake up the network node. In the hardware circuit design technology, the wake-up channel of the network node is a fixed channel, and the interference degree of the fixed channel cannot be determined. When the fixed channel is in a poor environment Or when there are many network nodes using the fixed channel, the interference on the fixed channel is large. Since the gateway node must use the fixed channel, the sensitivity of the network node is also poor when the fixed channel interference is large. .

In summary, how to improve the sensitivity of network nodes is an urgent problem to be solved.

Summary of the invention

The embodiment of the present invention provides a method and a device for waking up a network node, which are used to solve the problem that the sensitivity of the network node existing in the prior art is low.

In a first aspect, the present application provides a method for waking up a network node, including: a network node sending a service request to a gateway device, where the service request includes a channel where the network node is located and an adjacent channel of the channel where the network node is located; The gateway device determines a wireless wake-up channel in a channel where the network node is located and an adjacent channel where the network node is located by statistically analyzing a channel where the network node is located and an adjacent channel of the channel where the network node is located; The gateway device sends a service response to the network node, where the service response includes information of the wireless wake-up channel to indicate that the network node sleeps on the wireless wake-up channel, and the network node receives the gateway device Sending a service response, entering a wireless wake-up channel indicated by the service response to sleep; the gateway device sending a wake-up signal to the network node after the network node enters the wireless wake-up channel to sleep, If the network node determines that the received wake-up signal is to wake up the network node No., the wireless wake-up channel wakes up and switches to the working channel, and the gateway device wakes up from the wireless wake-up channel to the working channel after the network node confirms that the wake-up signal is a signal to wake up the network node. After that, also switch to the working channel.

The network node sends the situation of the adjacent channel to the gateway device by using the foregoing method, so that the gateway device can determine the wireless wake-up channel for the network node according to the channel where the network node is located and the adjacent channel of the channel where the network node is located; The network node to the gateway device may perform sleep and wake-up on the wireless wake-up channel determined according to the channel where the network node is located and the adjacent channel of the channel where the network node is located, thereby avoiding sleep and wake-up on a fixed channel, resulting in a network The problem of lower sensitivity of the node.

In a possible design, the method further includes: after determining that the received wake-up signal is not a signal for waking up the network node, the network node continues to sleep on the wireless wake-up channel, and according to The information of the wake-up signal is to listen to the wake-up signal sent by the gateway device next time.

In a possible design, the network node may perform channel scanning on the adjacent channel first, acquire the situation of the adjacent channel, and then send a service request to the gateway device. By this method, the network node can acquire the situation of the adjacent channel and provide the gateway device with accurate data of the channel condition.

In a possible design, the gateway device may send the determined wireless wake-up channel in a contract negotiation parameter to the network node. In addition, the contract negotiation parameter may further include at least one of a wireless wake-up period, a sleep time offset, a working channel, a wake-up listening time, a node internal logical number, a communication rate, and a contract aging indicating to the network node.

By this method, the network node can clearly and unambiguously acquire the wireless wake-up channel.

In a possible design, the network node may perform left and right shift according to an internal logical address carried in the wake-up signal to complete fast addressing to confirm whether the received wake-up signal is a signal for waking up the network node. . Through the method, the network node can quickly confirm whether the wake-up signal is a wake-up signal for waking up the network node, and can improve the wake-up speed of the network node.

In a possible design, when the network node does not accept that the gateway device sleeps on the wireless wake-up channel indicated by the service response, the network node may resend a new service request to the gateway device. . By this method, the network node can determine a wireless wake-up channel that is more suitable for the network node.

In a possible design, the method further includes: if the gateway device does not receive the second acknowledgement message after sending the set number of wake-up signals, and does not receive the acknowledgement message fed back by the network node, The gateway device shortens the period in which the wake-up signal is transmitted or increases the preamble length of the wake-up signal.

In a possible design, the gateway device may determine the frequency of use of each channel according to the situation of the adjacent channels included in the service request sent by the multiple network nodes, and use the weight of the frequency according to the usage frequency. Sort the individual channels to the small, and select the last channel as the wireless wake-up channel.

In a second aspect, the present application provides a network node, including a transceiver unit and a processing unit, and the transceiver unit and the processing unit may be implemented by hardware or by corresponding logic function modules. The transceiver unit and the processing unit can implement the method process performed by the network node in the possible design of any of the above aspects and the first aspect thereof by interaction.

In a third aspect, the present application provides a gateway device, including: a transceiver unit and a processing unit, where the transceiver unit and the processing unit may be implemented by hardware or by a corresponding logic function module. The transceiver unit and the processing unit can implement the method process completed by the gateway device in the possible design of any of the above aspects and the first aspect thereof by interaction.

In a fourth aspect, an embodiment of the present application further provides an apparatus, including a processor and a memory, where the memory is used to store a software program, and the processor is configured to read a software program stored in the memory and implement the first aspect. A method according to any one of the first aspect, the second aspect, or any one of the above second aspects.

In a fifth aspect, the embodiment of the present application further provides a computer storage medium, where the software program stores a software program, where the software program can implement the first aspect and the first aspect when being read and executed by one or more processors. Any of the designs, the second aspect, or any one of the above second aspects of the design provides a method.

In a sixth aspect, the embodiment of the present application further provides a chip, where the chip is connected to a memory, for reading and executing a software program stored in the memory, to implement the first aspect or any one of the foregoing first aspects. A design, or a method provided by the second aspect or any one of the above second aspects.

DRAWINGS

FIG. 1 is a schematic diagram of a monitoring environment provided by an embodiment of the present application;

2 is a flowchart of a method for waking up a network node according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a network node according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a gateway device according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a hardware provided by an embodiment of the present application.

Detailed ways

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

The embodiment of the present invention provides a method and a device for waking up a network node, which are used to solve the problem that the sensitivity of the network node existing in the prior art is low. The method and the device are based on the same inventive concept. Since the principles of the method and the device for solving the problem are similar, the implementation of the device and the method can be referred to each other, and the repeated description is not repeated.

Hereinafter, some of the terms in the present application will be explained to be understood by those skilled in the art.

The network node may be referred to as a terminal node, a terminal device, an Internet of Things terminal, etc., and the network node may communicate with one or more network devices via a Radio Access Network (RAN). The network node can be a mobile phone (or "cellular" phone) or a computer with a mobile terminal, etc., for example, the network node can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device. The network node can also be an IoT device, such as a watch terminal, a wearable device, a logistics tracker, an elevator picture or a satellite device. The network node can also be a vehicle device, such as a vehicle-mounted terminal, a roadside unit (RSU).

Gateway devices, which can be called coordinators, routers, and so on.

A wireless wake-up channel, a channel on which a network node is in an inactive state, sleeps on the channel, and is woken up on the channel.

Working channel, the channel on which the network node is in working state.

A wake-up signal that wakes up a network node to a working state in a sleep state.

Multiple means two or more.

In addition, it should be understood that in the description of the present application, the terms "first", "second" and the like are used only to distinguish the purpose of description, and are not to be understood as indicating or implying relative importance, nor as an indication. Or suggest the order.

In the prior art, a hardware circuit design technique is used to wake up a network node. For example, a wireless Internet service provider is connected to a passive wake-up module of Tmote Sky, and the output pin of the WISP is connected to the universal input of the passive wake-up module. The output pin, when the WISP micro control unit outputs a 1.8V signal, is greater than the voltage required by the external wake-up module to trigger an external interrupt of 0.92V, triggering the passive wake-up module. During use, the noise between the two devices may also cause a false wake-up of the passive wake-up module. The WISP's MCU has a large computational burden, resulting in large power consumption, and the hardware channel wakes up the network node and wakes up the channel. For fixed channels, the sensitivity is also poor.

The network node wake-up scheme provided by the present application is specifically described below with reference to the accompanying drawings.

2 is a flowchart of a method for waking up a network node according to the present application. The method includes:

S201. The network node sends a service request to the gateway device, where the service request includes a channel condition of a working channel where the network node is currently located and an adjacent channel of the currently working channel. Specifically, the foregoing network node sends a service request to the gateway device, that is, a contract negotiation of a wireless wakeup with the gateway device may be initiated, where the service request may also be referred to as a WAKE (Wake-on radio) request. -Contract-Request).

S202. The gateway device performs statistical analysis on the neighboring channel of the working channel where the network node is currently included in the service request, to determine a wireless wake-up channel of the network node.

Specifically, the gateway device receives the service request sent by the multiple network nodes, performs statistical analysis on the adjacent channel conditions of the respective channels of the multiple nodes, and can determine a suitable wireless wake-up channel for each network node, and further The information of the determined wireless wake-up channel is carried in a contract negotiation parameter sent to the network node, wherein the channel condition of one channel may refer to the number of network nodes working or sleeping on the channel.

For example, the gateway device determines the frequency of use frequency of each channel according to the channel condition of the adjacent channel of the working channel where each network node currently included in the service request sent by the multiple network nodes is received, for example, Arranging in order of weights from small to large, the first channel in the ranking, that is, the channel with the smallest weight, is the optimal channel, and the optimal channel refers to the network node that works or sleeps on the channel. The optimal number is the optimal wake-up channel relative to the channel with the least number of other channels. On the same wake-up channel, it is preferable to keep one network node on top. When the number of network nodes exceeds the number of channels, the above-mentioned optimal channel is used to ensure that communication interference is minimized, and the optimal channel is dynamically selected, and the wireless wake-up channel can be reduced. The interference of the wireless working channel improves the reliability of communication.

The contract negotiation parameter may further include a wireless wake-up period (WOR-T), a sleep time offset (Toffset), a wireless wake-up channel (WOR-channel), a working channel (Work-channel), and a wake-up listening time ( At least one of a WOR-listen, a logical address, a data-rate, and a contract-T, the contract negotiation parameter may be delivered in the form of a contract table.

S203. The gateway device sends a service response to the network node, where the service response may include information of a wireless wake-up channel, where the information of the wireless wake-up channel may be carried in a contract negotiation parameter in the service response.

S204. The network node configures and updates the network node according to the contract negotiation parameter according to the contract negotiation parameter included in the received service response, that is, configures and updates a wireless wake-up period and a sleep time for the network node. Offset, wireless wake-up channel, working channel, wake-up listening time, node internal logical number, communication rate, and contract aging.

S205. The network node sends a first acknowledgement message to the gateway device, and starts a timer corresponding to the wireless wake-up period, and enters a wireless wake-up channel specified by the contract negotiation parameter to perform sleep.

S206. The gateway device starts a timer, and sends a wake-up signal to the network node at the set time in the timer, where the wake-up signal includes an internal logical address of the network node to be woken up and a time interval at which the wake-up signal is sent next time.

The internal logical address, that is, the specific identifier of the network node, when the network node receives the wake-up signal, determines an internal logical address carried by the wake-up signal, and confirms that the wake-up signal is sent to the network node. .

S207. The network node receives the wake-up signal sent by the gateway device at the set wake-up listening time, and determines that the received wake-up signal is a signal for waking up the network node, and sends a second acknowledgement message to the gateway device, and switches. Work on the working channel.

Specifically, the wake-up signal includes an internal logical address, and the network node performs left-right shift according to the internal logical address to complete fast addressing to confirm whether the received wake-up signal is a signal for waking up the network node, that is, if the internal logical address Correctly, the network node determines that the received wake-up signal is a signal for waking up the network node; if the internal logical address is incorrect, the network node determines that the received wake-up signal is not a signal for waking up the network node, and is simply and quickly Shifting for addressing improves addressing efficiency and speeds up channel wake-up time. The wake-up listening time set above is less than the set time of the timer, and the internal logical address may be numbered by a binary number.

For example, the internal logical address of the network node itself is 16 bits, specifically 0000111100001111, and the internal logical address included in the wake-up signal is 1000011110000111. After receiving the wake-up signal, the network node receives the internal logical address included in the wake-up signal. Perform left shift, move 1 bit each time, move the last bit to the leftmost end, and the internal logical address after shifting after the first shift is 0000111100001111. The network node judges the shifted internal logical address and itself. The internal logical address is the same, and it is determined that the wake-up signal is sent to itself. In the embodiment of the present application, the internal logical address included in the wake-up signal may also be right-shifted. Specifically, shifting to the left or shifting to the right is preset. This application is not limited, and the internal logical address is also Can be 64 bits. Taking 16-bit internal logical address as an example, after shifting, 16 different internal logical addresses can be produced, and one wake-up message can wake up to 16 network nodes.

If the network node determines that the received wake-up signal is not a signal for waking up the network node, it continues to enter a sleep state, and listens to the next wake-up signal sent by the gateway device according to the information of the wake-up signal.

S208. The gateway device receives the second acknowledgement message sent by the network node, and the gateway device switches to the working channel to start normal communication. If the gateway device does not receive the second acknowledgement message after sending the set number of wake-up signals, the gateway device may shorten the timer duration or increase the preamble length of the wake-up signal to ensure the set time in the timer (ie, During the wireless wake-up period, the network node can receive the wake-up signal as much as possible during the wake-up listening time, avoiding the loss of the wake up signal (WuS), resulting in an increase in data delay.

In this embodiment, the network node sends the neighboring channel to the gateway device, and the gateway device may determine, by the network device, the wireless wake-up channel for the network node according to the channel where the network node is located and the adjacent channel of the channel. Therefore, the network node to the gateway device can perform sleep and wake-up on the wireless wake-up channel determined according to the channel where the network node is located and the adjacent channel of the channel in which the network node is located, thereby avoiding sleep and wake-up on a fixed channel, thereby causing The problem of lower sensitivity of network nodes.

Before the step S201, the network node may also obtain the situation of the adjacent channel by using the channel scanning. In the embodiment of the present application, the network node may obtain the adjacent channel by using other methods, which is not limited in this application.

Before step S204, if the network node receives the service response, but the network node does not accept the contract negotiation parameter in the service response, the network node may send a new service request to the gateway device, and the above steps S201 and S202 may be repeated. Step S203, until a channel suitable for sleep waking of the network node is determined.

After achieving a possible embodiment, the network node and the gateway device determines the contract negotiation parameters, the current time can Tcurr, sleep time offset Toffset, wireless wakeup period WOR-T, the network node calculates the time to enter the sleep _T wake- _Up , the formula is as follows: T _wake-up = (Toffset-Tcurr) modWOR-T

In one possible implementation, different network nodes can perform sleep and wake-up listening operations on different channels.

In a possible implementation manner, the duty cycle of the wake-up time and the sleep time is designed to make the message time longer than the wake-up time, and the message is as short as possible and has the highest efficiency.

进行计算。其中，信道功率P _s可以表示为多个奇异值，噪声功率P _n是M的

倍，M为信道的噪声功率的均值，

为白噪声功率。 Step S202 is described in detail below through a specific embodiment. The performance of the channel can be judged by using signal noise ratio (SNR), loss rate and delay to determine whether it is a good channel, and the SNR can pass.

Calculation. Wherein, the channel power P _s can be represented as a plurality of singular values, and the noise power P _n is M

Times, M is the mean of the noise power of the channel,

For white noise power.

表示，τ _k是信号k的丢失率，λ _k是信号k的平均到达速率，λ是整体系统的平均到达率。 Average loss rate can be

It is indicated that τ _k is the loss rate of the signal k, λ _k is the average arrival rate of the signal k, and λ is the average arrival rate of the overall system.

是信号k的平均排队延迟，信号k对于系统的平均延迟

平均延迟还可以表示为

Is the average queuing delay of signal k, the average delay of signal k for the system

The average delay can also be expressed as

式子表示，m是信道评估参数的类型，Q _i是 信道i的综合评价指标，q _m′是信道评估参数的类型为m的信道的有效评估值，p _m是信道i综合评价指标中信道评估参数的类型为m的信道的比例，N为信道数量。 Integrated channel assessment can be

The expression indicates that m is the type of channel estimation parameter, Q _i is the comprehensive evaluation index of channel i, q _m ' is the effective evaluation value of the channel of channel type parameter m, and p _m is the channel in channel i comprehensive evaluation index The proportion of the channel whose type of parameter is m is evaluated, and N is the number of channels.

By evaluating the channel by the above three parameters, it can be concluded that Q _i (t)=p ₀ q ₀ '(t)+p ₁ q ₁ '(t)+p ₂ q ₂ '(t), p ₀ + p ₁ + p ₂ =1. q ₀ ', q ₁ ', q ₂ ' respectively represent effective evaluation values of SNR, delay and loss rate, and p ₀ , p ₁ , p ₂ are ratios of each parameter in the comprehensive evaluation value.

分别是t时刻的SNR、延迟和损失率的平均值，

分别是t时刻SNR、延迟和损失率当前的评估值。

The average of the SNR, delay, and loss rate at time t, respectively.

They are the current evaluation values of SNR, delay and loss rate at time t.

相反，若延迟和损失率增加，信道质量就会降低，所以

其中，α是SNR的增加比例，b是降低量，最后综合信道评估指标最高的被视为优质信道。 If the value of SNR increases, the value of channel quality will also increase, so

Conversely, if the delay and loss rate increase, the channel quality will decrease, so

Among them, α is the increase ratio of SNR, b is the decrease amount, and the highest integrated channel evaluation index is regarded as the quality channel.

f(t+1)是系统在下一时刻选出的优质通道的频率值，f ₀是信道通信频率下限，每个信道的权重分配可以由

得出，其中，Q _i′(t)是信道估计函数，Q _i′(t+1)是信道预测函数，γ和1-γ是信道估计和信道预测在信道权重中的比例系数，η是信道预测的有效性，η越大，预测越准确，且

为了更好的体现出有效范围内优质通道的趋势程度

其中，x _i为第i信道的评估值。 In the case of premium channel selection,

f(t+1) is the frequency value of the high quality channel selected by the system at the next moment, f ₀ is the lower limit of the channel communication frequency, and the weight distribution of each channel can be

It is concluded that Q _i '(t) is a channel estimation function, Q _i '(t+1) is a channel prediction function, and γ and 1-γ are proportional coefficients of channel estimation and channel prediction in channel weight, η is The effectiveness of channel prediction, the larger the η, the more accurate the prediction, and

In order to better reflect the trend of quality channels within the effective range

Where x _i is the evaluation value of the i-th channel.

Based on the same inventive concept as the method embodiment, the present application further provides a schematic diagram of a network node. As shown in FIG. 3, the network node includes a transceiver unit 301, configured to send a service request to a gateway device, where the service request includes And a service response sent by the gateway device, where the service response includes a wireless wake-up channel, where the service response includes the And determining, by the gateway device, the information of the wireless wake-up channel determined by the network node according to the channel where the network node is located and the adjacent channel of the channel, where the wireless wake-up channel, that is, the gateway device, is located according to the network node The case of the channel and the adjacent channel of the channel in which it is located is the channel determined by the network node for sleep. In an implementation manner, the information of the wireless wake-up channel may be carried in a contract negotiation parameter in a service response. The processing unit 302 is configured to control the network node to enter the wireless wake-up channel indicated by the service response to perform sleep; the transceiver unit 301 is further configured to receive a wake-up signal sent by the gateway device, where the processing unit 302 And when it is determined that the wake-up signal received by the transceiver unit is a signal for waking up the network node, controlling the network node to wake up on the wireless wake-up channel and switch to a working channel for operation.

The embodiment of the present application provides that the network node sends the situation of the adjacent channel to the gateway device, and may enable the gateway device to determine the wireless wake-up channel for the network node according to the channel where the network node is located and the adjacent channel of the channel where the network is located. Therefore, the network node to the gateway device can perform sleep and wake-up on the wireless wake-up channel determined according to the channel where the network node is located and the adjacent channel of the channel in which the network node is located, thereby avoiding sleep and wake-up on a fixed channel, thereby causing The problem of lower sensitivity of network nodes.

In a possible implementation manner, the processing unit 302 is further configured to: when determining that the received wake-up signal is not a signal for waking up the network node, controlling the network node to continue on the wireless wake-up channel Sleeping up, and according to the information of the wake-up signal, controlling the transceiver unit to listen to the wake-up signal sent by the gateway device next time.

In a possible implementation manner, the processing unit 302 is further configured to: before the sending and receiving unit sends a service request to the gateway device, control the transceiver unit to perform channel scanning on the adjacent channel to obtain the phase The case of the adjacent channel.

In a possible implementation manner, the processing unit 302 is configured to determine, according to the internal logic carried in the wake-up signal, when determining that the wake-up signal received by the transceiver unit is a signal for waking up the network node. The address is shifted left and right to complete fast addressing to confirm whether the received wake-up signal is a signal to wake up the network node.

In a possible implementation manner, the processing unit 302 is further configured to control the transceiver unit when the network node does not receive sleep on the wireless wake-up channel indicated by the service response by the gateway device. A new service request is resent to the gateway device.

Based on the same inventive concept as the method embodiment, the present application further provides a schematic diagram of a gateway device, as shown in FIG. 4, including a transceiver unit 401, configured to receive a service request sent by a network node, where the service request includes The channel where the network node is located and the adjacent channel of the channel where the network is located; the processing unit 402 is configured to perform statistical analysis on the channel where the network node is located and the adjacent channel of the channel where the network is located, in the network Determining a wireless wake-up channel in a channel where the node is located and an adjacent channel of the channel in which the node is located; and controlling the transceiver unit to send a service response to the network node, where the service response includes information of the wireless wake-up channel to indicate The network node sleeps on the wireless wake-up channel; and after the network node enters the wireless wake-up channel to sleep, controlling the transceiver unit to send a wake-up signal to the network node, and confirming at the network node The wake-up signal is a wake-up from the wireless wake-up channel after waking up the signal of the network node After going to the working channel, switch to the working channel.

In a possible implementation manner, the transceiver unit is further configured to shorten a period for sending the wake-up signal or increase the period after receiving the acknowledgment message fed back by the network node after sending the set number of wake-up signals. The length of the preamble of the wake-up signal.

In a possible implementation, the processing unit is configured to: according to the statistical analysis, when the wireless wake-up channel is determined in the channel where the network node is located and the adjacent channel of the channel, specifically, according to the received The case of the adjacent channels included in the service request sent by the network node determines the use frequency weight of each channel, and sorts the respective channels according to the use frequency weights from large to small, and selects the last channel as the wireless wake-up channel.

In a possible implementation manner, the transceiver unit is further configured to: receive a new service request that is resent by the network node, where the new service request is that the network node does not receive the gateway device Transmitted when the sleep is performed on the wireless wake-up channel indicated by the service response.

The division of the modules in the embodiment of the present application is schematic, and is only a logical function division. In actual implementation, there may be another division manner. In addition, each functional module in each embodiment of the present application may be integrated into one processing. In the device, it can also be physically existed alone, or two or more modules can be integrated into one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules.

When the integrated module can be implemented in the form of hardware, as shown in FIG. 5, the network node or the gateway device may include the processor 501, and the hardware of the entity corresponding to the processing unit 302 or 402 may be the processor 501. The transceiver 504 may also be included, and the hardware of the entity corresponding to the transceiver unit 301 or 401 may be the transceiver 504. The processor 501 can be a central processing unit (English: central processing unit, CPU for short), or a digital processing module or the like. The network node or gateway device further includes a memory 502 for storing a program executed by the processor 501. The memory 502 can be a non-volatile memory, such as a hard disk drive (HDD) or a solid state drive (English: solid-state drive, abbreviated as SSD), or a volatile memory (English: volatile Memory), such as random access memory (English: random-access memory, abbreviation: RAM). Memory 502 is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.

The processor 501 is configured to execute the program code stored in the memory 502, specifically calling the program instructions stored in the memory 502.

The specific connection medium between the processor 501 and the memory 502 is not limited in the embodiment of the present application. The embodiment of the present application is connected by the bus 503 between the processor 501 and the memory 502 in FIG. 5, and the bus is indicated by a thick line in FIG. 5, and the connection manner between other components is only for illustrative description, and is not cited. Limited. 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 5, but it does not mean that there is only one bus or one type of bus.

Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system, or computer program product. Thus, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware. Moreover, the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present application without departing from the spirit and scope of the embodiments of the present application. Thus, it is intended that the present invention cover the modifications and variations of the embodiments of the present invention.

Claims (21)

A wake-up method for a network node, comprising: The network node sends a service request to the gateway device, where the service request includes a channel where the network node is located and an adjacent channel of the channel where the channel is located; Receiving, by the network node, a service response sent by the gateway device, where the service response includes, by the gateway device, determining, for the network node, according to a channel where the network node is located and an adjacent channel of the channel where the network is located. Information of the wireless wake-up channel; The network node enters a wireless wake-up channel indicated by the service response to sleep; The network node receives the wake-up signal sent by the gateway device, and if it is determined that the received wake-up signal is a signal for waking up the network node, the wireless wake-up channel wakes up and switches to the working channel. The method of claim 1 wherein the method further comprises: After determining that the received wake-up signal is not a signal for waking up the network node, the network node continues to sleep on the wireless wake-up channel, and listens to the gateway device according to the information of the wake-up signal. A wake-up signal sent once. The method of claim 1, wherein before the network node sends the service request to the gateway device, the method further includes: The network node performs channel scanning on the adjacent channel to acquire the situation of the adjacent channel. The method of claim 1, wherein the determining, by the network node, that the received wake-up signal is a signal to wake up the network node comprises: The network node performs left and right shift according to an internal logical address carried in the wake-up signal to complete fast addressing to confirm whether the received wake-up signal is a signal for waking up the network node. The method of claim 1 wherein the method further comprises: The network node does not accept that the gateway device sleeps on the wireless wake-up channel indicated by the service response; The network node resends a new service request to the gateway device. A wake-up method for a network node, comprising: Receiving, by the gateway device, a service request sent by the network node, where the service request includes a channel where the network node is located and an adjacent channel of the channel where the channel is located; The gateway device performs statistical analysis on a channel where the network node is located and an adjacent channel of the channel in which the network node is located, and determines a wireless wake-up channel in a channel where the network node is located and an adjacent channel of the channel where the network node is located; The gateway device sends a service response to the network node, where the service response includes information of the wireless wake-up channel to indicate that the network node sleeps on the wireless wake-up channel; After the network node enters the wireless wake-up channel to sleep, the gateway device sends a wake-up signal to the network node, and after the network node confirms that the wake-up signal is a signal for waking up the network node, After the wireless wake-up channel wakes up and switches to the working channel, it switches to the working channel. The method of claim 6 further comprising: If the gateway device does not receive the acknowledgement message fed back by the network node after transmitting the set number of wake-up signals, shorten the period of sending the wake-up signal or increase the preamble length of the wake-up signal. The method according to claim 6, wherein the gateway device determines, by statistical analysis, a wireless wake-up channel in a channel where the network node is located and an adjacent channel of the channel in which the network node is located, including: The gateway device determines the frequency of use of each channel according to the situation of the adjacent channels included in the service request sent by the plurality of network nodes, and sorts the channels according to the use frequency weights from large to small, and selects the sorting. The last channel acts as a wireless wake-up channel. The method of claim 7 wherein the method further comprises: Receiving, by the network node, a new service request resent by the network node, where the new service request is when the network node does not accept the gateway device to sleep on the wireless wake-up channel indicated by the service response Sent. A network node, comprising: a transceiver unit, configured to send a service request to the gateway device, where the service request includes a channel where the network node is located and a neighboring channel of the channel where the network is located; and receiving a service response sent by the gateway device, where the service is The response includes information of the wireless wake-up channel determined by the network device according to the channel where the network node is located and the adjacent channel of the channel where the network node is located; a processing unit, configured to control, by the network node, to enter a wireless wake-up channel indicated by the service response to perform sleep; The transceiver unit is further configured to receive a wake-up signal sent by the gateway device; The processing unit is further configured to: when it is determined that the wake-up signal received by the transceiver unit is a signal to wake up the network node, control the network node to wake up on the wireless wake-up channel and switch to a working channel. jobs. The network node according to claim 10, wherein the processing unit is further configured to: when it is determined that the received wake-up signal is not a signal to wake up the network node, control the network node to continue in the network node Sleeping on the wireless wake-up channel, and controlling the transceiver unit to listen to the wake-up signal sent by the gateway device next time according to the information of the wake-up signal. The network node according to claim 10, wherein the processing unit is further configured to: after the transceiver unit sends a service request to the gateway device, control the transceiver unit to perform channel scanning on the adjacent channel, Obtaining the case of the adjacent channel. The network node according to claim 10, wherein the processing unit is configured to determine, according to the wake-up signal, that the wake-up signal received by the transceiver unit is a signal for waking up the network node. The carried internal logical address is left and right shifted to complete fast addressing to confirm whether the received wake-up signal is a signal to wake up the network node. The network node according to claim 10, wherein the processing unit is further configured to: when the network node does not accept sleep on the wireless wake-up channel indicated by the service response by the gateway device, The transceiver unit resends a new service request to the gateway device. A gateway device, comprising: a transceiver unit, configured to receive a service request sent by a network node, where the service request includes a channel where the network node is located and an adjacent channel of the channel where the channel is located; a processing unit, configured to perform a statistical analysis on a channel where the network node is located and an adjacent channel of the channel in which the network node is located, and determine a wireless wake-up channel in a channel where the network node is located and an adjacent channel of the channel where the network node is located And controlling the transceiver unit to send a service response to the network node, the service response including information of the wireless wake-up channel to indicate that the network node is dormant to the wireless wake-up channel; and in the network After the node enters the sleep of the wireless wake-up channel, the transceiver unit is controlled to send a wake-up signal to the network node, and wakes up from the wireless after the network node confirms that the wake-up signal is a signal waking up the network node. After the channel wake-up is switched to the working channel, it switches to the working channel. The gateway device according to claim 15, wherein the transceiver unit is further configured to shorten the sending of the wake-up signal when the acknowledgment message fed back by the network node is not received after sending the set number of wake-up signals The period either increases the preamble length of the wake-up signal. The gateway device according to claim 15, wherein the processing unit is configured to: when the wireless wake-up channel is determined in the channel where the network node is located and the adjacent channel of the channel in which the network node is located, by using statistical analysis: Determining the frequency of use of each channel according to the situation of the adjacent channels included in the service request sent by the plurality of network nodes, and sorting the channels according to the use frequency weights from large to small, and selecting the sorting in the last channel. As a wireless wake-up channel. The gateway device according to claim 15, wherein the transceiver unit is further configured to: Receiving a new service request resent by the network node, the new service request being sent when the network node does not accept the gateway device to sleep on the wireless wake-up channel indicated by the service response. An apparatus, including a processor, a memory, and a transceiver, The memory stores a software program; The processor is configured to invoke and execute a software program stored in the memory, and the method of transmitting and receiving data by the transceiver to implement the method according to any one of claims 1 to 9. A computer readable medium, characterized in that the computer readable medium stores computer instructions that, when executed on a computer, cause the computer to perform the method of any one of claims 1 to 9. A chip, characterized in that the chip is connected to a memory for reading and executing a software program stored in the memory to implement the method according to any one of claims 1 to 9.

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