Narrowband ad hoc network information broadcasting method and device

Abstract

The invention discloses a narrowband ad-hoc network information broadcasting method, which comprises the following steps: transmitting an activation frame between ad-hoc network equipment, wherein the activation frame comprises hop count indication information; the hop count indication information is used as an index of a corresponding frequency time slot combination; and / or, an activation frame is transmitted between the ad hoc network devices, the activation frame comprises indication information of a frequency and time slot combination, and the frequency and time slot combination corresponds to the hop count. The invention further comprises a device for implementing the method. According to the scheme of the invention, the problems of long frequency point scanning time and low efficiency of Ad hoc network forwarding in the prior art are solved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a narrowband ad hoc network broadcasting method and device for a digital mobile walkie-talkie system. Background Art

[0002] In the DMR (Digital Mobile Radio) or PDT (Public Digital Trunking) ad hoc multi-hop communication system, since one frequency point of DMR or PDT has only two time slots, two or more frequency points must be used to achieve multi-hop communication. However, for ad hoc network forwarding devices or terminals that only receive at a single frequency point, the traditional approach is to scan two or more frequency points back and forth to access or forward signals.

[0003] The ad hoc network communication system needs to use two or more frequencies for multi-hop communication. However, for ad hoc network forwarding devices or terminals that only receive at a single frequency, the traditional approach is to scan two or more frequencies back and forth to access or forward signals. Scanning at two or more frequencies will result in longer access time. For voice or data, a voice header, data header or preamble code needs to be added to each hop of the ad hoc network, which increases the access time. At the same time, scanning also brings uncertainty to the network. Summary of the invention

[0004] The present application proposes a narrowband ad hoc network broadcasting method and device, which solves the problem of long scanning frequency point time and low efficiency in the prior art ad hoc network forwarding.

[0005] On the one hand, an embodiment of the present application provides a narrowband ad hoc network information broadcasting method, comprising: An activation frame is transmitted between self-organizing network devices, which includes hop count indication information; the hop count indication information is used as an index of a corresponding frequency-time slot combination; and / or, an activation frame is transmitted between self-organizing network devices, which includes frequency-time slot combination indication information, and the frequency-time slot combination corresponds to the hop count.

[0006] In one embodiment of the present application, the activation frame is transmitted at a fixed frequency.

[0007] In one embodiment of the present application, as the number of hops increases, the frequency and time slot combination is reused or cyclically used.

[0008] In one embodiment of the present application, the activation frame is determined; the corresponding frequency time slot combination is determined according to the indication information therein; and broadcast information is received or sent on the frequency time slot combination.

[0009] In one embodiment of the present application, a first activation frame is received, and a corresponding frequency-time slot combination is determined according to indication information therein; and broadcast information is received on the frequency-time slot combination.

[0010] In one embodiment of the present application, the number of hops on the transmitting side is determined, and the corresponding frequency time slot combination is determined according to the number of hops on the transmitting side; broadcast information is sent on the frequency time slot combination; and a second activation frame is sent, which includes any one or more of the indication information.

[0011] In one embodiment of the present application, the indication information is located in the 96 bits of the IDLE frame of the activation frame.

[0012] Preferably, the activation frame also includes at least one of the following indication information: whether the next-hop forwarding device is accessed; whether the next-hop forwarding device is forwarding; the ID of the forwarding device; and positioning information. Further preferably, the activation frame includes the start ID and end ID of the next hop; if the ID of the next-hop forwarding device is within this range, access and forwarding are performed, otherwise access and forwarding are not performed; or if the ID of the next-hop forwarding device is not within this range, access and forwarding are performed, otherwise access and forwarding are not performed.

[0013] In a second aspect, an embodiment of the present application provides a narrowband ad hoc network information broadcasting device, which is used to implement the method described in any embodiment of the first aspect of the present application, including: Determining means, for determining the number of hops at the transmitting side and / or the receiving side; A receiving device, configured to receive a first activation frame, wherein the first activation frame includes information indicating the number of hops or the frequency-time slot combination of the receiving side; and receive broadcast information according to the frequency-time slot combination of the receiving side; The sending device is used to send a second activation frame, wherein the second activation frame includes indication information of the number of hops or frequency-time slot combination of the receiving side; and receive broadcast information according to the frequency-time slot combination of the sending side.

[0014] In a third aspect, an embodiment of the present application further proposes a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method described in any embodiment of the first aspect of the present application.

[0015] In a fourth aspect, an embodiment of the present application further proposes an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method described in any embodiment of the first aspect of the present application is implemented.

[0016] At least one of the above technical solutions adopted in the embodiments of the present application can achieve the following beneficial effects: The present invention provides a method for broadcasting information in a narrowband ad hoc network. The method broadcasts the communication frequency and time slot of the device at a fixed frequency, so that each ad hoc network device or terminal does not need to scan, thereby solving the problem of slow scanning access and avoiding the uncertainty of networking. The method for broadcasting information in a narrowband ad hoc network provided by the present invention can also broadcast other information through activation frames, such as controlling whether the next-hop forwarding device is connected, thereby controlling the forwarding quantity and reducing co-frequency interference.

[0017] The advantage of this application is that each networking device does not need to use frequency and time slot scanning, which shortens the access time of self-networking voice and data services. This method can also broadcast other information through activation frames, such as controlling whether the next hop device forwards, device ID, positioning information, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 A schematic diagram of a multi-hop self-organizing network in the prior art; Figure 2 A schematic diagram of multi-hop self-organizing network communication of the present application technology; Figure 3 Schematic diagram of frequency-time combination reuse in a multi-hop ad hoc network. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0020] It should be noted that the DMR system of the present application preferably refers to a digital wireless communication system that complies with the European Telecommunications Standards Institute-Digital Mobile Radio (ETSI-DMR) standard (ETSI TS 102 361-1), the PDT system, see "PDT Digital Trunk Communication System Technical Specifications-Air Interface Physical Layer and Data Link Layer", other wireless intercom digital communication systems, and those skilled in the art can perform multi-hop communication according to the scheme of the present application. It is within the scope of protection requested by the present application.

[0021] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0022] Figure 1 FIG. 1 is a schematic diagram of a multi-hop self-organizing network in the prior art. Taking a self-organizing network with two frequencies as an example, Figure 1 As shown in the figure, a 4-hop ad hoc network is achieved through frequency division multiplexing and two time slots, where F1 and F2 represent two different frequencies, and S1 and S2 represent two time slots. Terminal 1 initiates a voice call through F1_S1 (time slot 1 of frequency F1), and ad hoc device 1 forwards it to terminal 2 and ad hoc device 2 within the coverage area through F2_S2; after ad hoc device 2 receives the RF signal of F2_S2, it forwards it to terminal 3 and ad hoc device 3 within the coverage area through F2_S1; after ad hoc device 3 receives the RF signal of F2_S1, it forwards it to the last terminal through F1_S2. Of course, multi-hop ad hoc networks can also be achieved through other frequency combinations.

[0023] Figure 1 In the example, the downlink signal of ad hoc device 1 is forwarded on time slot 2 of F2. Ad hoc device 2 is not clear whether ad hoc device 1 is forwarding on F1 or F2. The traditional solution is to scan the two frequencies of F1 and F2.

[0024] The above are only examples for explaining the technology. Sometimes, the number of frequencies used in the ad hoc network can be more, for example, up to 3 or more. Scanning the frequency points will cause the access time to be longer. For voice or data, it is necessary to add a voice header or a data header or a preamble code at each hop of the ad hoc network, which increases a lot of access time. At the same time, scanning also brings uncertainty to the networking. In order to solve the above technical problems, the present invention proposes an improved method that does not require scanning.

[0025] like Figure 2~3 As shown, an embodiment of the present application proposes a narrowband ad hoc network information broadcasting method, including: transmitting an activation frame between ad hoc network devices, wherein the activation frame includes hop count indication information; the hop count indication information is used as an index of a corresponding frequency-time slot combination; and / or, transmitting an activation frame between ad hoc network devices, wherein the activation frame includes indication information of a frequency-time slot combination, and the frequency-time slot combination corresponds to the hop count.

[0026] Preferably, the present application creates an activation frame, which still complies with the PDT or DMR protocol, and is modified in the content of the protocol, and an indication of the number of hops is added, from which the number of hops can be mapped to the corresponding frequency and time slot. Of course, the frequency and time slot information, or the frequency, time slot and number of hops information, can also be directly carried, and the present application does not make a mandatory requirement. In order to reduce the sending time of the activation frame and avoid mutual interference of the activation frames, the activation frame is generally only sent as one frame.

[0027] In one embodiment of the present application, the activation frame is created by the ad hoc network device when forwarding the broadcast information sent by the terminal device as a part of the broadcast information.

[0028] In another embodiment of the present application, when the terminal device sends broadcast information, it sends an activation frame at the same frequency point, including some indication information of the embodiment of the present application, wherein the activation frame and other broadcast information may not be in the same time slot.

[0029] It should be noted that the technical solution of the present application allows mixed networking of devices with activation frames and devices without activation frames. When the information received by the self-organizing network device does not contain an activation frame, it can be received using traditional technology. In this case, the self-organizing network device can create an activation frame for use on the sending side.

[0030] In one embodiment of the present application, the activation frame is transmitted at a fixed frequency. All terminals and ad hoc network devices are on standby at the same frequency, so the activation frame is also transmitted at this frequency. Figure 1 As an example, add the method of activating the frame such as Figure 2 As shown. If all terminals and ad hoc network devices are on standby at F1, the terminal or ad hoc network device agrees to initiate a call only in time slot 1 or time slot 2 of the F1 frequency. The activation frame is sent on the fixed frequency F1 to ensure that all ad hoc network devices and terminals can receive the activation frame without scanning. Preferably, the activation frames received and sent by multiple ad hoc network devices use the same frequency time slot combination. The frequency time slot combination used by multiple ad hoc network devices to forward broadcast information is the same as or different from the frequency time slot combination used by the activation frame.

[0031] Any self-organizing network device performs processing on the receiving side and the sending side. On the receiving side, in one embodiment of the present application, a first activation frame is received, and the corresponding frequency time slot combination is determined according to the indication information therein; and broadcast information is received on the frequency time slot combination. On the sending side, in one embodiment of the present application, the number of hops on the sending side is determined, and the corresponding frequency time slot combination is determined according to the number of hops on the transmitting side; broadcast information is sent on the frequency time slot combination; and a second activation frame is sent, which contains any one or more of the indication information.

[0032] In an embodiment of the present application, a terminal or a self-organizing network device determines the activation frame; determines the corresponding frequency time slot combination according to the indication information therein; and receives or sends broadcast information on the frequency time slot combination. In an embodiment of the present application, the frequency time slot combination used by the received broadcast information is different from the frequency time slot combination used by the sent broadcast information. In other words, any self-organizing network device changes the frequency time slot combination used when sending broadcast information, so the frequency time slot combination used by adjacent self-organizing network devices to send broadcast information is different.

[0033] For example, terminal 1 initiates a call in time slot S1 of frequency F1. After receiving the voice header (or data header) of terminal 1, ad hoc device 1 knows that it is the first hop, and the downlink forwarding is in time slot S2 of frequency F2 (of course, it can also be other agreed frequency and time slot combinations, this application is just an example). Because terminal 1 initiates a call in time slot S1 of frequency F1, in order to avoid signal conflict with terminal 1, ad hoc device 1 needs to send an activation frame in time slot S2 of frequency F1. After sending the activation frame, ad hoc device 1 jumps to F2_S2 for forwarding.

[0034] For example, after receiving the activation frame from the self-organizing device 1, the self-organizing device 2 knows that the self-organizing device 1 will forward in the time slot S2 of the frequency F2, and also knows that it is the second hop, and its forwarding frequency time slot combination is F2_S1. In order not to conflict with the signal of the terminal 1, the self-organizing device 2 needs to send the activation frame in the time slot S2 of the frequency F1. After sending the activation frame, the self-organizing device 2 jumps to F2_S1 for forwarding.

[0035] For example, after receiving the activation frame from ad hoc device 2, ad hoc device 3 knows that ad hoc device 2 will forward in time slot S1 of frequency F2, and also knows that it is the third hop, and its forwarding frequency time slot combination is F1_S2. At this time, if it is considered that the third hop is far away from the terminal, and the power of the ad hoc device is high, it will not affect the terminal 1 to interfere with the activation frame, and the activation frame can be not staggered with the time slot of terminal 1. After sending the activation frame, ad hoc device 3 jumps to F1_S2 for forwarding.

[0036] If terminal 1 initiates a call at F1_S2, the process is similar. The activation frame of at least 2 hops needs to be staggered with the signal of terminal 1 and sent at F1_S1.

[0037] Preferably, the technical solution of the present application further includes that, in the multi-hop broadcast information transmission process, the frequency time slot combinations used for receiving and sending broadcast information are rotated in a set order until all frequency time slot combinations are traversed. Figure 2 In the embodiment, the order of settings is: F1_S1, F2_S2, F2_S1, F1_S2. In one traversal cycle of all frequency time slot combinations, only one frequency time slot combination used by the ad hoc network device to send broadcast information is the same as the frequency time slot combination used by the activation frame, and only one frequency time slot combination used by the ad hoc network device to receive broadcast information is the same as the frequency time slot combination used by the activation frame.

[0038] In the embodiment of the present application, as the number of hops increases, the frequency-time slot combination can be reused or cyclically used. Any combination of multiple frequencies and multiple time slots can be cyclically multiplexed. For example, two frequencies and two time slots constitute four combination schemes, or three frequencies and two time slots constitute six combinations for cyclic multiplexing. Take the combination of two frequencies and two time slots as an example. Figure 3 As shown, the distance between the self-organizing network device 4 and the terminal 1 may be quite far, and the self-organizing network device 4 reuses the F1_S1 of the terminal 1. The activation frame of the self-organizing network device 4 does not need to be staggered with the time slot of the terminal. After sending the activation frame, the self-organizing network device 4 jumps to F1_S1 for forwarding. Preferably, when the frequency time slot combination of the transmitting side is reused, the transmission power difference of the two devices that reuse the frequency time slot combination is required to be greater than a set threshold.

[0039] If there are other self-organizing network devices later, the processing is similar to the previous one and will not be repeated.

[0040] The activation frame of the ad hoc network can be added or modified in the existing PDT or DMR protocol frame, such as modifying the frame content to add a hop count indication, or distinguishing the hop count information through inconsistent Data Type values ​​in the PDT or DMR protocol, or other similar modifications. Other content broadcasts can also be added, such as the station ID, etc.

[0041] In one embodiment of the present application, the indication information is located in the 96 bits of the IDLE frame of the activation frame. This is just an example. Other similar modifications to the PDT or DMR protocol, as long as the indication information described in the present application is added, are also within the scope of protection of this patent. To construct the activation frame, the 96 bits of the IDLE frame are improved as follows: Table 1: Activation frame structure of this application

[0042] Take the case where the terminal initiates a call at F1_S1 and two frequencies and two time slots are used cyclically as an example. The number of hops corresponding to the frequency and time slot combination is agreed upon. Then, the forwarding frequency and time slot corresponding to the number of hops can be known by looking up the table. The following is an example: Table 2. Hop count indication information as an index of forwarding frequency time slot combination

[0043] Therefore, preferably, the self-organizing network device or the terminal device includes a forwarding frequency time slot combination configuration table, and a corresponding relationship in which the set hop count indication information is used as an index of the forwarding frequency time slot combination.

[0044] Further preferably, the self-organizing network device or terminal device is configured by communication signaling or configuration signaling, and the configuration information includes a forwarding frequency time slot combination configuration table, and further, it can also include a set hop number indication information as a corresponding relationship of the index of the forwarding frequency time slot combination. Among them, the corresponding relationship between the hop number and the forwarding frequency time slot combination can also be preset. Preferably, the configuration information can be activated by dynamic signaling as needed.

[0045] Preferably, through the starting ID and ending ID of the next hop, if the ID of the next hop is within this range, access and forwarding are performed, otherwise access and forwarding are not performed; or, if the ID of the next hop forwarding device is not within this range, access and forwarding are performed, otherwise access and forwarding are not performed, thereby controlling the number of next hop forwarding devices and reducing co-channel interference.

[0046] The information broadcasting method for a narrowband ad hoc network provided by the present invention can also broadcast other information, such as controlling whether a next-hop forwarding device forwards, thereby controlling the number of next-hop forwarding devices and reducing co-channel interference.

[0047] On the other hand, an embodiment of the present application provides a narrowband ad hoc network information broadcasting device, which is used to implement the method described in any embodiment of the first aspect of the present application, including: A determination device is used to determine the number of hops on the transmitting side and / or the receiving side; the determination device determines the number of hops on the receiving side and / or the frequency-time slot combination on the receiving side according to the indication information of the number of hops on the receiving side or the frequency-time slot combination in the first activation frame; and the determination device generates a second activation frame after determining the number of hops on the sending side and / or the frequency-time slot combination on the sending side.

[0048] It can be understood that, for an ad hoc network device that forwards a broadcast signal, the number of hops on the sending side is the number of hops on the receiving side + 1.

[0049] A receiving device, configured to receive a first activation frame, wherein the first activation frame includes information indicating the number of hops or the frequency-time slot combination of the receiving side; and receive broadcast information according to the frequency-time slot combination of the receiving side; The sending device is used to send a second activation frame, wherein the second activation frame includes indication information of the number of hops or frequency-time slot combination of the receiving side; and receive broadcast information according to the frequency-time slot combination of the sending side.

[0050] Each working module of the device is loaded in a self-organizing network device, such as self-organizing network devices 1 to 3, and at least one module in the self-organizing network device is used to implement at least one of the following functions: On the receiving side, the functions include: receiving a first activation frame; determining a corresponding frequency time slot combination according to the indication information therein; and receiving broadcast information on the frequency time slot combination.

[0051] On the sending side, the functions include: determining the number of hops on the sending side, and determining the corresponding frequency time slot combination according to the number of hops on the sending side; sending broadcast information on the frequency time slot combination; sending a second activation frame, which contains any one or more of the indication information.

[0052] The frequencies of the first activation frame and the second activation frame are the same, for example, the first frequency. And / or, the time slots of the first activation frame and the second activation frame are the same, for example, the second time slot; preferably, the frequency-time slot combination used to transmit the first activation frame and the second activation frame is the same. The frequency-time slot combination used to send broadcast information on the sending side is the same as or different from the frequency-time slot combination used to send activation frames.

[0053] Each working module of the apparatus is loaded in a terminal device, and at least one module in the terminal device is used to implement at least one of the following functions: The sending side, such as terminal 1, sends broadcast information on a set frequency-time slot combination, i.e., a first frequency and a first time slot. The first frequency is also used to transmit an activation frame. Preferably, the frequency-time slot combination of the activation frame is a first frequency and a second time slot; the terminal device sends indication information to the ad hoc network device, including an indication of the activation configuration information. The configuration information includes a forwarding frequency-time slot combination configuration table, and further, may also include a set hop count indication information as a corresponding relationship of an index of the forwarding frequency-time slot combination. In one embodiment of the present application, the terminal device sends the activation frame along with the broadcast information.

[0054] The receiving side, such as terminals 2~4, is on standby at a set frequency time slot combination, for example, receiving an activation frame at a first frequency, and determining a corresponding frequency time slot combination according to the indication information therein; specifically, determining the number of hops of the receiving side and / or determining the frequency time slot combination of the receiving side according to the number of hops of the receiving side or the indication information of the frequency time slot combination in the first activation frame; and receiving broadcast information on the frequency time slot combination of the receiving side.

[0055] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0056] Therefore, the present application also proposes a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the method described in any embodiment of the present application is implemented. The computer-readable storage medium can be configured in any device of the narrowband self-organizing network of the present application, such as terminal devices 1-4 or self-organizing network devices 1-3.

[0057] Furthermore, the present application also proposes an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method described in any embodiment of the present application when executing the computer program. The method is included in the above functional descriptions and will not be repeated here.

[0058] For example, it includes: one or more processors; a storage device for storing one or more programs, when the one or more programs are executed by the one or more processors, the one or more processors implement the method provided in the embodiment of the present application. The method is included in the above functional descriptions and will not be repeated here.

[0059] The electronic device also includes an input device and an output device; the processor, storage device, input device and output device in the electronic device can be connected via a bus or other means.

[0060] As a computer-readable storage medium, the storage device can be used to store software programs, computer executable programs and module units, such as program instructions corresponding to the method in the embodiment of the present application. The storage device may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to the use of the terminal, etc. In addition, the storage device may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the storage device may further include a memory remotely arranged relative to the processor, and these remote memories may be connected via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0061] Furthermore, the present application also proposes a narrowband ad hoc network information broadcasting system, comprising a terminal device described in any embodiment of the present application and a self-organizing network device described in any embodiment, which are interconnected and used to implement the method of any embodiment of the present application, and the terminal device and the self-organizing network device are interconnected through a communication x protocol.

[0062] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of further restrictions, the elements defined by the sentence "comprises..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0063] Those skilled in the art will appreciate that, unless expressly stated, the singular forms "a", "an", "said" and "the" used may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, devices, parts and / or groups thereof. It should be understood that when a device or part is "connected" to another device or part, it may be directly connected to the other device or part, or there may be an intermediate device or part. In addition, the "connection" used here may include wireless connections and may also include partial wired connections. The term "and / or" used here includes all or any unit and all combinations of one or more associated listed items.

[0064] Those skilled in the art will understand that unless otherwise defined, all terms (including technical, technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art to which this invention belongs.

[0065] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A method for broadcasting information in a narrowband ad hoc network, characterized in that: Transmitting an activation frame between ad hoc network devices, wherein the activation frame includes hop count indication information; the hop count indication information is used as an index of a corresponding frequency-time slot combination; and / or, An activation frame is transmitted between the self-organizing network devices, wherein the activation frame includes indication information of a frequency-time slot combination, and the frequency-time slot combination corresponds to the number of hops.

2. The narrowband ad hoc network information broadcasting method according to claim 1, characterized in that: The activation frame is transmitted at a fixed frequency.

3. The narrowband ad hoc network information broadcasting method according to claim 1, characterized in that: As the number of hops increases, the frequency-time slot combination is reused or cyclically used.

4. A method for broadcasting narrowband ad hoc network information according to any one of claims 1 to 3, characterized in that: Determine the activation frame; determine the corresponding frequency time slot combination according to the indication information therein; receive or send broadcast information on the frequency time slot combination.

5. A method for broadcasting information in a narrowband ad hoc network as claimed in any one of claims 1 to 3, characterized in that: A first activation frame is received, and a corresponding frequency-time slot combination is determined according to indication information therein; and broadcast information is received on the frequency-time slot combination.

6. A method for broadcasting information in a narrowband ad hoc network according to any one of claims 1 to 3, characterized in that: Determine the number of hops on the transmitting side, and determine the corresponding frequency time slot combination according to the number of hops on the transmitting side; send broadcast information on the frequency time slot combination; send a second activation frame, which contains any one or more of the indication information.

7. A method for broadcasting information in a narrowband ad hoc network according to any one of claims 1 to 3, characterized in that: The indication information is located in the 96 bits of the IDLE frame of the activation frame.

8. A method for broadcasting information in a narrowband ad hoc network according to any one of claims 1 to 3, characterized in that: The activation frame also includes at least one of the following indication information: Whether the next-hop forwarding device is connected; Whether the next-hop forwarding device forwards the packet; The ID of the forwarding device; Positioning information.

9. A method for broadcasting information in a narrowband ad hoc network according to any one of claims 1 to 3, characterized in that: The activation frame includes the start ID and end ID of the next hop; if the ID of the next hop forwarding device is within this range, access and forwarding are performed, otherwise access and forwarding are not performed; or, if the ID of the next hop forwarding device is not within this range, access and forwarding are performed, otherwise access and forwarding are not performed.

10. A narrowband ad hoc network information broadcasting device, used to implement the method according to any one of claims 1 to 9, characterized in that: include: Determining means, for determining the number of hops at the transmitting side and / or the receiving side; A receiving device, configured to receive a first activation frame, wherein the first activation frame includes information indicating the number of hops or the frequency-time slot combination of the receiving side; and receive broadcast information according to the frequency-time slot combination of the receiving side; The sending device is used to send a second activation frame, wherein the second activation frame includes indication information of the number of hops or frequency-time slot combination of the receiving side; and receive broadcast information according to the frequency-time slot combination of the sending side.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 1 to 9 is implemented.

12. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the method according to any one of claims 1 to 9 is implemented.

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