WO2019084956A1 - Method for resource scheduling in mesh network and mesh network nodes - Google Patents

Abstract

Disclosed is a method for resource scheduling in a mesh network. The mesh network comprises a master node and multiple slave nodes. The method comprises: the master node acquires service requirement information of self and of the multiple slave nodes; allocates time-domain resources to the multiple slave nodes on the basis of the service requirement information; and respectively transmits time-domain resource allocation information of every slave node to the corresponding slave nodes, thus allowing every slave node to determine the time-domain resource allocated to each and to allocate frequency-domain resources on the time-domain resource of each. Also disclosed are the corresponding mesh network nodes and the method for resource scheduling in the mesh network. The present invention effectively solves the problem of network overload for the master node and increases the stability of network performance.

Description

Resource scheduling method and Mesh network node in Mesh network

[Technical Field]

The present invention relates to the field of Mesh network communication technologies, and in particular, to a resource scheduling method and a Mesh network node in a Mesh network.

 【Background technique】

Centralized scheduling is a commonly used resource scheduling method in Mesh networks. Generally, all the nodes report the service requirements to the master node. The master node allocates available network resources to each node according to a certain algorithm, and specifies the sending parameters of each node, such as modulation and coding modes. In this method, the master node is required to maintain a large amount of information of nodes on the entire network, such as channel quality between nodes. When the network size is large, the load of the master node is large, which easily becomes a bottleneck of network performance, and the signaling overhead required for each node to report its own information is also large, and the network recovery time is once the master node fails to work normally. It is relatively long and does not meet the characteristics of self-organizing networks.

 [Summary of the Invention]

The technical problem to be solved by the present invention is to provide a resource scheduling method and a Mesh network node in a Mesh network, which effectively solves the problem of excessive network load of the primary node and improves the stability of the network performance.

In order to solve the above technical problem, a first aspect of the present invention is: a resource scheduling method in a mesh network, where the Mesh network includes a master node and multiple slave nodes; the method includes: the master node acquires itself and the The service requirement information of the plurality of slave nodes; the time domain resources are allocated to the plurality of slave nodes according to the service requirement information; and the time domain resource allocation information of each slave node is separately sent to the corresponding slave node, so that each The slave nodes determine the time domain resources allocated by the respective nodes, and perform frequency domain resource allocation on the respective time domain resources.

In order to solve the above technical problem, a second aspect of the present invention is: a Mesh network node, which is applied to a Mesh network, and includes: a processing module, configured to acquire a service requirement of itself and a plurality of slave nodes different from the Mesh network node. Information, and allocating time domain resources to the plurality of slave nodes according to the service requirement information; and sending module, configured to separately send time domain resource allocation information of each slave node to the corresponding slave node, so that each slave node determines Each of the obtained time domain resources is allocated, and frequency domain resource allocation is performed on the respective time domain resources.

In order to solve the above technical problem, a third aspect of the present invention is: a Mesh network node, applied to a mesh network, including a transmitter, a memory, and a processor, wherein: the memory is configured to be stored by the processor Executing the program instruction; the processor executing the program instruction, configured to: acquire the service requirement information of the self and the plurality of slave nodes; and allocate the time domain resource to the plurality of slave nodes according to the service requirement information; And transmitting, by the transmitter, the time domain resource allocation information of each slave node to the corresponding slave node, so that each slave node determines the time domain resources allocated by each of the slave nodes, and on the respective time domain resources. Perform frequency domain resource allocation.

In order to solve the above technical problem, a fourth aspect of the present invention is: a resource scheduling method in a mesh network, where the Mesh network includes a master node and multiple slave nodes; and the method includes: obtaining, by the slave node, service demand information; The primary node reports the service requirement information, so that the primary node allocates the time domain resource to the multiple slave nodes according to the service requirement information of the multiple slave nodes; and receives the corresponding time domain resource allocation information, and The frequency domain resource allocation is performed on the allocated time domain resources.

In order to solve the above technical problem, the fifth aspect of the present invention is: a Mesh network node, which is applied to a Mesh network, and includes a sending module, a receiving module, and a processing module, where the processing module is configured to obtain service demand information and pass the The sending module reports the service requirement information to the master node in the Mesh network, so that the master node allocates time domain resources to the multiple slave nodes according to the service requirement information of the plurality of slave nodes; The receiving module receives the corresponding time domain resource allocation information, and performs frequency domain resource allocation on the allocated time domain resources.

In order to solve the above technical problem, a sixth aspect of the present invention is: a Mesh network node, which is applied to a Mesh network, including a transmitter, a receiver, a memory, and a processor, wherein: the memory is configured to be stored as being a program instruction executed by the processor; the processor executing the program instruction, configured to: obtain service demand information; report, by the sender, service requirement information to a master node in a Mesh network, so that the master node is configured according to And the service requirement information of the plurality of slave nodes are allocated time domain resources to the plurality of slave nodes; and receiving corresponding time domain resource allocation information by the receiver, and performing frequency on the allocated time domain resources Domain resource allocation.

The beneficial effects of the present invention are: in the Mesh network, the primary node allocates the time domain resource to the slave node by using the service requirement information reported from the node, and sends the time domain resource allocation information of the slave node to the corresponding slave node to implement the resource. The first level of scheduling, and then the slave nodes perform frequency domain resource allocation on the respective dynamic time domain resources to implement the second level scheduling of the resources, thereby effectively solving the master node's centralized scheduling compared with the centralized scheduling of the master node in the prior art. Excessive load problems improve the stability of network performance.

 [Description of the Drawings]

The present invention will be further described below in conjunction with the accompanying drawings and embodiments, in which:

1 is a schematic diagram of a system of a mesh network;

2 is a schematic diagram of each frame in the above Mesh network;

3 is a schematic diagram of an allocation of static time domain resources in each frame in the Mesh network;

4 is a schematic flowchart of a first embodiment of a resource scheduling method in a mesh network according to the present invention;

FIG. 5 is a schematic diagram of a specific process of step S42 in the above embodiment;

6 is time domain resource allocation information in a next frame after using the method in FIG. 4;

7 is a schematic flowchart of a second embodiment of a resource scheduling method in a mesh network according to the present invention;

8 is a schematic diagram of frequency domain resource allocation according to the present invention on the basis of FIG. 6;

9 is a schematic structural diagram of a first embodiment of a mesh network node according to the present invention;

10 is a schematic structural diagram of a second embodiment of a mesh network node according to the present invention;

11 is a schematic structural diagram of a third embodiment of a mesh network node according to the present invention;

FIG. 12 is a schematic structural diagram of a fourth embodiment of a mesh network node according to the present invention.

【Detailed ways】

The technical solutions of the present invention are further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in FIG. 1 , it is a schematic diagram of a system of a mesh network. The mesh network includes a master node 11 and slave nodes 12-14. Both the master node 11 and the slave nodes 12-14 can perform wireless data forwarding and can connect to the external network through a multi-hop wireless link (External Network), such as the Internet. In addition, the mesh network may also include user terminal devices with wireless forwarding functions, such as mobile phones, mobile computers, and the like.

Each frame in the Mesh network includes static time domain resources and dynamic time domain resources, and static time domain resources of each frame are fixedly allocated to the master node 11 and the plurality of slave nodes 12-14. In this embodiment, as shown in FIG. 2, each frame includes 20 subframes, and the length of each subframe is 1 ms. In each frame, T0-T9 is a static subframe, which is used to configure static time domain resources, T10- T19 is a dynamic subframe used to configure dynamic time domain resources. Taking the Mesh network system in FIG. 1 as an example, the static time domain resources in each frame are fixedly allocated to the master node 11 and the slave nodes 12-14. As shown in FIG. 3, the master node 11 permanently occupies the static subframe T0, the slave node. 12-14 occupies 1 subframe of the static subframes T1-T9, wherein the slave node 12 occupies the static subframe T1, the slave node 13 occupies the static subframe T2, and the slave node 14 occupies the static subframe T3.

The present invention will be described in detail below by taking the Mesh network system in FIG. 1 as an example and referring to FIG. 3.

As shown in FIG. 4, it is a schematic flowchart of a first embodiment of a resource scheduling method in a mesh network according to the present invention, which is performed by the foregoing master node 11. The method includes the following steps:

Step S41: The master node acquires service requirement information of itself and multiple slave nodes.

Specifically, in step S41, the master node 11 acquires the service requirement information of the plurality of slave nodes 12-14, including: the master node 11 respectively receives the plurality of slave nodes 12-14 to report through the static time domain resources in the current frame. Business demand information in each of the current frames. Business demand information through BSR (Buffer State Report, buffer status report) indicates the sum of the number of bytes including all LC buffers. In the current frame, the slave node 12 (or 13 or 14) reports the BSR to the master node 11 in the form of a broadcast through the respective static time domain resources, that is, in a static subframe, for example, the slave node 12 is in the static subframe. In T1, the BSR is reported to the master node 11 in the form of a broadcast. Within one frame, the slave node 12 also reports its BSR to the master node 11 in the form of a broadcast in the static subframe T1, that is, the frame from the node 12 in one frame. The BSR is reported to the master node 11 for a period of time.

Specifically, in step S41, the master node 11 acquires its own service requirement information, including: the master node maintains its own service object information in the current frame, and generates a service requirement in the current frame within the frame length of the current frame according to the service object information. information.

In the Mesh network, the BO of the master node 11 (Business The object, the service object, is maintained by itself. The master node 11 maintains its own service object information in the current frame, and generates service demand information in the current frame within the frame length of the current frame according to the service object information, specifically including: The buffer status of each logical channel in the current transmission time interval, and calculating the service demand information in the current frame by using the following formula;

BSR = BSRinit - BSRstatic - BSRdyn

The BSR indicates the traffic demand information in the current frame, BSRinit is the buffer amount of the primary node at the start time of the current frame, and BSRstatic is the TB transmitted by the static area on the logical channel. The estimated value of Size, BSRdyn is the estimated value of the TB Size transmitted by the dynamic area on the logical channel.

TB transmitted on the logical channel The estimated value of the size is the scheduling information to be scheduled. As can be seen from the above formula, the master node 11 needs to estimate the scheduling information of all subframes in the current frame for maintenance. TB Size(Transport Block) The estimated value of Size, transport block size is obtained by the corresponding estimation method. Among the estimation methods of TB Size, according to the broadband CQI (Channel Quality) Information, channel quality status), using appropriate MCS (Modulation and Coding Scheme), look up the table to get ITBS (representing TB) Size index), according to the number of PRB (Physical Resouce Block), look up the table to get TB Size, in this process, ensures that the code rate does not exceed the predetermined upper limit value, and will not be described in detail within the understanding of those skilled in the art.

Step S42: Allocating time domain resources to the plurality of slave nodes according to the service requirement information.

The master node 11 allocates time domain resources to the plurality of slave nodes 12-14 according to the service requirement information. In the mesh network, the service requirement information in the current frame is used as a decision of the master node 11 to allocate dynamic time domain resources. Specifically, step S42 The method includes: allocating dynamic time domain resources in the N frames to the plurality of slave nodes according to the service requirement information in the current frame, where N is an integer of at least 1. The service requirement information in the current frame allocates dynamic time domain resources in the N frames to the plurality of slave nodes, that is, the service requirement information in the current frame is valid for the next N frame, and when N takes 1, the service demand information in the current frame. Valid for the next frame.

Specifically, taking N as an example for description, in the next frame, as shown in FIG. 5, the step S42 includes the following steps:

Step S421: Acquire a service demand quantity of the master node and each slave node according to the service requirement information of the master node and the service requirement information of the multiple slave nodes;

Step S422: Calculate the ratio of the service demand of the master node and each slave node;

Step S423: Allocating dynamic time domain resources in the N frames to the master node and each slave node according to the proportion of the service demand.

The master node 11 receives the service requirement information (ie, the BSR) of the slave node 12-14, and obtains the respective service demand amount (ie, the BSR value) according to the service requirement information and the service requirement information of the slave node, and then performs step S422 and step S423. The master node 11 allocates dynamic time domain resources in the next N frames to the master node 11 and the slave nodes 12-14. At this time, the master node obtains time domain resource allocation information in the next N frames. For example, the BSR value of the master node 11 is 20, the BSR value of the slave node 12 is 30, the BSR value of the slave node 13 is 50, and the BSR value of the slave node 14 is 60, and the service demand ratio of each node is 2: 3:5:6, at this time, taking the dynamic time domain resource in FIG. 3 as an example, please refer to FIG. 3 at the same time, the total number of dynamic time domain resources is 16 in each frame, and then, the dynamics allocated to the master node 11 itself. The number of time domain resources is 16*(2/(2+3+5+6)) That is, 2, for the same reason, the number of dynamic time domain resources allocated to the slave node 12 is 3, the number of dynamic time domain resources allocated to the slave node 13 is 5, and the number of dynamic time domain resources allocated to the slave node 14 is 6. , the time domain resource allocation information in the next frame as shown in FIG. 6.

Step S43: The time domain resource allocation information of each slave node is separately sent to the corresponding slave node, so that each slave node determines the time domain resources allocated by each slave node, and performs frequency domain resource allocation on the respective time domain resources. .

After the above steps, the master node 11 can obtain dynamic time domain resource allocation information in the next frame, and the number of dynamic time domain resources allocated by each slave node, correspondingly, the time domain resource allocation information of each slave node. They are sent to the slave nodes 12-14, respectively, and the slave nodes 12-14 respectively perform frequency domain resource allocation on the respective dynamic time domain resources.

Specifically, step S43 includes: the primary node sends the time domain resource allocation information of each slave node in the next N frame to the corresponding slave node at the start time of the next N frame.

FIG. 7 is a schematic flowchart diagram of a second embodiment of a resource scheduling method in a mesh network according to the present invention. The method is performed by the slave node 12 or 13 or 14, and the following is performed by the slave node 12 as an example. The method includes the following steps:

Step S71: Acquire service demand information.

Specifically, the step S71 includes: the slave node maintains its own service object information in the current frame, and generates service demand information in the current frame within the frame length of the current frame according to the service object information.

In the Mesh network, the BO of each slave node is maintained by itself, the slave node 12 maintains its own service object information in the current frame, and generates service demand information in the current frame within the frame length of the current frame according to the service object information. Specifically, the method includes: maintaining a cache state of each logical channel in a current transmission time interval, and calculating service requirement information in the current frame, where the calculation formula of the service requirement information in the current frame is:

BSR= BSRinit - BSRstatic - BSRdyn

The BSR indicates the traffic demand information in the current frame, BSRinit is the buffer amount of the slave node at the start time of the current frame, and BSRstatic is the TB transmitted by the static area on the logical channel. The estimated value of Size, BSRdyn is the estimated value of the TB Size transmitted by the dynamic area on the logical channel.

TB transmitted on the logical channel The estimated value of Size is the scheduling information to be scheduled. As can be seen from the above formula, the slave node 12 needs to estimate the scheduling information of all subframes in the current frame for maintenance. TB The estimated value of the Size is obtained by the corresponding estimation method. The estimation method of the TB Size is described in the above embodiment, and will not be described here.

Step S72: Report the service requirement information to the master node, so that the master node allocates time domain resources to the plurality of slave nodes according to the service requirement information of the slave node and the plurality of slave nodes.

Specifically, the step S72 includes: the slave node reports the service requirement information in the current frame to the master node by using the static resource allocated in the current frame, where the service requirement information in the current frame is used by the master node as multiple slaves. The node allocates dynamic time domain resources within N frames. The service requirement information in the current frame includes the sum of the bytes of all LC buffers. In the current frame, the slave node 12 reports its BSR to the master node 11 in its broadcast form through its own static time domain resource, that is, in the static subframe T1.

The master node allocates time domain resources to the plurality of slave nodes according to the service requirement information of itself and the plurality of slave nodes. The details have been described in the above embodiments, and will not be described within the scope of those skilled in the art.

Step S73: Receive corresponding time domain resource allocation information, and perform frequency domain resource allocation on the allocated time domain resource.

Specifically, the step S73 includes: the slave node receives the time domain resource allocation information corresponding to the next N frame at the start time of the next N frame.

The slave node 12 performs frequency domain resource allocation on the allocated time domain resources, that is, the subframes T6-T8 in FIG. 6, specifically, the slave node 12 according to neighboring nodes adjacent to itself and the traffic volume, wherein The neighboring node is a destination node to which the slave node 12 needs to send a service, and allocates frequency domain resources to its neighboring nodes on its dynamic time domain resource. Please refer to FIG. 1 simultaneously, that is, the master node 11 and the slave node 13 are allocated. Frequency domain resources, in the same way, at this time, the slave node 13 and the slave node 14 also allocate frequency domain resources to their neighbor nodes on their dynamic time domain resources. Of course, the master node 11 can also be on its dynamic time domain resource. Its neighbor nodes allocate frequency domain resources. As shown in FIG. 8, the slave node 13 allocates frequency domain resources to the master node 11, the slave node 12, and the slave node 13 on the subframes T19-T13, and the slave node 13 is the master node 11 and the slave node on the subframes T14-T19. 13 allocate frequency domain resources. Of course, at this time, the master node 11 also allocates frequency domain resources for the slave nodes 12-14 on the subframes T4-T5.

As shown in FIG. 9, it is a schematic structural diagram of a first embodiment of a mesh network node according to the present invention. The mesh network node is applied to a mesh network and can be used as the master node 11 in FIG. The mesh network node 900 includes a processing module 910 and a sending module 920.

The processing module 910 is configured to acquire service requirement information of itself and a plurality of slave nodes different from the Mesh network node, and allocate time domain resources to the plurality of slave nodes according to the service requirement information.

The sending module 920 is configured to separately send time domain resource allocation information of each slave node to the corresponding slave node, so that each slave node determines the time domain resources allocated by each node, and performs frequency domain on the respective time domain resources. Resource allocation.

The modules of the foregoing Mesh network node may be corresponding to the steps in the first embodiment of the foregoing method. For details, refer to the description of the first embodiment of the foregoing method.

As shown in FIG. 10, it is a schematic structural diagram of a second embodiment of a mesh network node according to the present invention. The mesh network node is applied to a mesh network, and can be used as the slave node 12 or 13 or 14 in FIG. The slave node 12 is illustrated as an example. The mesh network node 1000 includes a processing module 1010, a sending module 1020, and a receiving module 1030.

The sending module 1020 is configured to report the service requirement information to the master node 11.

The receiving module 1030 is configured to receive corresponding time domain resource allocation information.

The processing module 1010 is configured to obtain the service requirement information, and report the service requirement information to the primary node by using the sending module 1020, so that the primary node allocates the time domain resource to the multiple secondary nodes according to the service requirement information of the multiple and the secondary nodes; The receiving module 1030 receives the corresponding time domain resource allocation information, and performs frequency domain resource allocation on the allocated time domain resource.

The modules of the foregoing Mesh network node may be corresponding to the steps in the second embodiment of the foregoing method. For details, refer to the description of the second embodiment of the foregoing method.

As shown in FIG. 11, it is a schematic structural diagram of a third embodiment of a mesh network node according to the present invention. The mesh network node is applied to a mesh network and can be used as the master node 11 in FIG. The mesh network node 1100 includes a transmitter 1110, a memory 1120, a processor 1130, and a bus 1140.

The transmitter 1110 is configured to separately send the time domain resource allocation information of each slave node to the corresponding slave node.

Memory 1120 is used to store program instructions that are configured to be executed by processor 1130 and data that needs to be saved or cached during operation of processor 1130.

In this embodiment, the processor 1130 is configured to execute by calling a program instruction stored in the memory 1120:

Obtaining business demand information of itself and multiple slave nodes;

Allocating time domain resources to multiple slave nodes based on service demand information;

The time domain resource allocation information of each slave node is separately sent to the corresponding slave node by the transmitter 1110, so that each slave node determines the time domain resources allocated by each node, and performs frequency domain resources on the respective time domain resources. distribution.

The processor 1130 can be used to perform the steps in the first embodiment of the foregoing method. For details, please refer to the description of the first embodiment of the foregoing method.

The processor 1130 described above may also be referred to as a CPU (Central Processing). Unit, central processing unit). Memory 1120 can include read only memory and random access memory and provides instructions and data to processor 1130. A portion of the memory 1120 may also include non-volatile random access memory (NVRAM). In a specific application, the foregoing components of the Mesh network node are coupled together by a bus 1140. The bus 1140 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus 1140 in the figure.

As shown in FIG. 12, it is a schematic structural diagram of a fourth embodiment of a mesh network node according to the present invention. The mesh network node is applied to a mesh network, and can be used as the slave node 12 or 13 or 14 in FIG. The slave node 12 is illustrated as an example. The mesh network node 1200 includes a transmitter 1210, a memory 1220, a processor 1230, a bus 1240, and a receiver 1250.

The transmitter 1210 is configured to report the service requirement information to the master node 11.

The receiver 1250 is configured to receive corresponding time domain resource allocation information.

Memory 1220 is for storing program instructions that are configured to be executed by processor 1230 and data that needs to be saved or cached during operation of processor 1230.

In this embodiment, the processor 1230 is configured to execute by calling program instructions stored in the memory 1220:

Obtain business demand information;

Transmitting, by the sender 1210, the service requirement information to the primary node in the Mesh network, so that the primary node allocates the time domain resources to the multiple secondary nodes according to the service requirement information of the multiple and the secondary nodes;

The corresponding time domain resource allocation information is received by the receiver 1250, and the frequency domain resource allocation is performed on the allocated time domain resources.

The processor 1230 is configured to perform the steps in the foregoing method embodiments. For details, refer to the description of the foregoing method embodiments.

The above processor 1230 may also be referred to as a CPU (Central Processing) Unit, central processing unit). Memory 1220 can include read only memory and random access memory and provides instructions and data to processor 1230. A portion of memory 1220 may also include non-volatile random access memory (NVRAM). In a specific application, the above components of the Mesh network node are coupled together by a bus 1240. The bus 1240 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus 1240 in the figure.

The steps of the method in combination with the above embodiments may be directly implemented as completion of the hardware decoding processor or by a combination of hardware and software modules in the decoding processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 1120 as shown in FIG. 8 or the memory 1220 shown in FIG. 12, and the processor reads the information in the memory 1120 or 1220, and completes the steps of the above method in combination with its hardware.

To this end, the present invention also provides a computer readable storage medium, which can be specifically used as the memory 1120 shown in FIG. 8 or the memory 1220 shown in FIG. 12, which is stored in the processor. The program instruction running on the computer, specifically, in the embodiment, the program instruction is used to execute the resource scheduling method in the Mesh network as in the first embodiment or the second embodiment described above.

In the present invention, the master node allocates the time domain resource to the slave node by using the service requirement information reported from the node, and sends the time domain resource allocation information of the slave node to the corresponding slave node to implement the first level scheduling of the resource, and further The slave nodes perform frequency domain resource allocation on the respective dynamic time domain resources to implement the second level scheduling of the resources, thereby effectively solving the problem of excessive load of the master node compared with the centralized scheduling of the master node in the prior art. Improve the stability of network performance.

The above is only the embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the invention and the drawings are directly or indirectly applied to other related technologies. The fields are all included in the scope of patent protection of the present invention.

Claims (19)

1. A resource scheduling method in a mesh network, where the Mesh network includes a master node and multiple slave nodes;

   The method includes:

   The master node acquires service requirement information of itself and the plurality of slave nodes;

   Allocating time domain resources to the plurality of slave nodes according to the service demand information;

   The time domain resource allocation information of each slave node is separately sent to the corresponding slave node, so that each slave node determines the respective allocated time domain resources, and performs frequency domain resource allocation on the respective time domain resources.
2. The method according to claim 1, wherein each frame in the Mesh network comprises a static time domain resource and a dynamic time domain resource, and the static time domain resource of each frame is fixedly allocated to the master node and the Multiple slave nodes;

   The master node acquires service requirement information of the multiple slave nodes, including:

   The primary node receives the service requirement information of each of the plurality of slave nodes that are reported in the current frame by the respective static time domain resources in the current frame;

   The allocating time domain resources to the multiple slave nodes according to the service requirement information includes:

   The dynamic time domain resources in the N frames are allocated to the multiple slave nodes according to the service requirement information in the current frame, where the N is an integer of at least 1.
3. The method according to claim 2, wherein

   The allocating time domain resources to the multiple slave nodes according to the service requirement information includes:

   Obtaining a service demand quantity of the primary node and each secondary node according to the service requirement information of the primary node and the service requirement information of the multiple slave nodes;

   Calculating a ratio of service demand of the primary node and each secondary node;

   Allocating dynamic time domain resources in the next N frame to the master node and each slave node according to the service demand amount ratio.
4. The method according to claim 2, wherein

   The information about the service requirements of the master node is as follows:

   The master node maintains its own service object information in the current frame and generates service demand information in the current frame within the frame length of the current frame according to the service object information.
5. The method according to claim 4, wherein

   The master node maintains its own service object information in the current frame, and generates service demand information in the current frame within the frame length of the current frame according to the service object information, including:

   Maintaining the buffer status of each logical channel in the current transmission time interval, and calculating the service requirement information in the current frame by using the following formula;

   BSR = BSRinit - BSRstatic - BSRdyn

   The BSR indicates the service requirement information in the current frame, BSRinit is the buffer amount of the primary node at the start time of the current frame, and BSRstatic is the TB transmitted by the static area on the logical channel. The estimated value of Size, BSRdyn is the estimated value of the TB Size transmitted by the dynamic area on the logical channel.
6. The method according to claim 4, wherein

   The sending the time domain resource allocation information of each slave node to the corresponding slave node separately includes:

   The master node sends the time domain resource allocation information of each slave node in the next N frame to the corresponding slave node at the start time of the next N frame.
7. The method of claim 2 wherein said service demand information comprises a sum of bytes of all LC buffers.
8. A Mesh network node, wherein the application is applied to a Mesh network, including:

   a processing module, configured to acquire self-service information information of a plurality of slave nodes different from the Mesh network node, and allocate time domain resources to the plurality of slave nodes according to the service requirement information;

   a sending module, configured to separately send time domain resource allocation information of each slave node to a corresponding slave node, so that each slave node determines respective allocated time domain resources, and performs on the respective time domain resources Frequency domain resource allocation.
9. A Mesh network node, wherein applied to a Mesh network, including a transmitter, a memory, and a processor, wherein:

   The memory is for storing program instructions configured to be executed by the processor;

   The processor executes the program instructions for:

   Obtaining service demand information of itself and the plurality of slave nodes;

   Allocating time domain resources to the plurality of slave nodes according to the service demand information;

   Transmitting the time domain resource allocation information of each slave node to the corresponding slave node by the transmitter, so that each slave node determines the time domain resources allocated by each slave node, and performs on the respective time domain resources. Frequency domain resource allocation.
10. A resource scheduling method in a mesh network, where the mesh network includes a master node and multiple slave nodes;

    The method includes:

    Obtaining service requirement information from the slave node;

    And reporting the service requirement information to the primary node, so that the primary node allocates time domain resources to the multiple slave nodes according to the service requirement information of the master node and the multiple slave nodes;

    Receiving corresponding time domain resource allocation information, and performing frequency domain resource allocation on the allocated time domain resources.
11. The method according to claim 10, wherein

    Each frame in the Mesh network includes a static time domain resource and a dynamic time domain resource, and the static time domain resource of each frame is fixedly allocated to the primary node and the multiple slave nodes;

    The reporting of the service requirement information by the slave node to the master node includes:

    The slave node reports the service requirement information in the current frame to the master node by using the static resource allocated in the current frame, where the service requirement information in the current frame is used by the master node for the multiple The slave node allocates dynamic time domain resources within N frames, wherein the N is an integer of at least 1.
12. The method according to claim 10, wherein

    Allocating time domain resources to the plurality of slave nodes according to the service requirement information of the master node and the plurality of slave nodes includes:

    Obtaining the service demand of itself and each slave node according to the service requirement information;

    Calculating a ratio of service demand of the primary node and each secondary node;

    Allocating dynamic time domain resources in the next N frame to the master node and each slave node according to the service demand amount ratio.
13. The method according to claim 10, wherein

    The obtaining the service requirement information from the node includes:

    The slave node maintains its own service object information in the current frame, and generates service demand information in the current frame within the frame length of the current frame according to the service object information.
14. The method of claim 13 wherein

    The slave node maintains the service object information of the current frame in the current frame, and generates the service requirement information in the current frame in the frame length of the current frame according to the service object information, including:

    The slave node maintains a buffer status of each logical channel in the current transmission time interval, and calculates service requirement information in the current frame, where the calculation formula of the service requirement information in the current frame is:

    BSR= BSRinit - BSRstatic - BSRdyn

    The BSR represents the traffic requirement information in the current frame, the BSRinit is the buffer amount of the slave node at the start time of the current frame, and the BSRstatic is the TB transmitted by the static area on the logical channel. The estimated value of Size, BSRdyn is the estimated value of the TB Size transmitted by the dynamic area on the logical channel.
15. The method of claim 13 wherein

    The receiving corresponding time domain resource allocation information includes:

    The slave node receives time domain resource allocation information corresponding to the next N frame at a start time of the next N frame.
16. The method of claim 12 wherein said service demand information comprises a sum of bytes of all LC buffers.
17. A Mesh network node, wherein the application is applied to a Mesh network, including a sending module, a receiving module, and a processing module, where:

    The processing module is configured to obtain the service requirement information, and report the service requirement information to the primary node in the Mesh network by using the sending module, so that the primary node performs the service demand information according to itself and the multiple slave nodes. Allocating a plurality of slave nodes to allocate time domain resources; and receiving corresponding time domain resource allocation information by using the receiving module, and performing frequency domain resource allocation on the allocated time domain resources.
18. A Mesh network node, applied to a mesh network, including a transmitter, a receiver, a memory, and a processor, wherein:

    The memory is for storing program instructions configured to be executed by the processor;

    The processor executes the program instructions for:

    Obtain business demand information;

    Transmitting, by the sender, the service requirement information to the primary node in the Mesh network, so that the primary node allocates time domain resources to the multiple slave nodes according to the service requirement information of the multiple and the slave nodes;

    Receiving corresponding time domain resource allocation information by the receiver, and performing frequency domain resource allocation on the allocated time domain resource.
19. A computer readable storage medium storing program instructions executable on a processor, the program instructions to perform the method of any of claims 1-7, or as in claims 11-16 The method of any of the preceding claims.