A cluster gateway implementation method of TDMA wireless ad hoc network

Abstract

The application discloses a kind of cluster gateway implementation methods of TDMA wireless ad hoc network.It is to solve the problem of ad hoc network and cluster coverage extension connection, the application uses the following steps: after networking success, ad hoc network cluster gateway waits on the cluster control channel of even time slot, and monitors the odd time slot of ad hoc network;When receiving cluster system related service channel allocation signaling, or when receiving ad hoc network related service signaling, initiate service request to cluster system and receive cluster system service channel allocation signaling, according to the parity of service channel, select appropriate ad hoc network gateway associated routing node to transmit ad hoc network service signaling to cluster network or transmit cluster network service signaling to ad hoc network.The advantage is that it can not change any communication mode of cluster network, and make cluster network and ad hoc network service intercommunication;Make ad hoc network and cluster network can work on the same TDMA timing, so that information in ad hoc network and cluster network will not have any delay.

Description

Technical Field

[0001] This invention relates to the field of communication electronics technology, and more particularly to a method for implementing a trunking gateway in a TDMA wireless ad hoc network. Background Technology

[0002] Professional wireless communication commonly employs three methods: conventional direct communication, conventional relay communication, and trunked communication. The first method, conventional direct communication, requires only mobile station equipment, such as walkie-talkies and / or vehicle-mounted radios, to directly transmit services, such as making calls, between two or more mobile stations. Due to the line-of-sight propagation characteristics of high-frequency radio waves, the coverage of conventional direct communication is extremely limited. The latter two methods require the establishment of base stations, which relay services to expand the communication coverage area. Trunked communication systems typically establish multiple base stations to cover a larger area.

[0003] Due to terrain limitations, trunking communication systems always have areas that cannot be covered, such as the wilderness, caves / tunnels, and basements, where there is often no base station signal or it is difficult to set up a base station. In these places, ad hoc networking technology can be used to solve the problem of long-distance communication by networking between mobile stations.

[0004] Users have a need to connect and interconnect ad hoc networks with trunked networks. The mobile terminal device that enables this is called an ad hoc network trunked gateway (hereinafter referred to as TGR). It can transmit group call voice and SMS services initiated on the trunked network to the ad hoc network, and vice versa.

[0005] For example, a Chinese patent document, "A Communication Method and System for a Multi-User Cluster Networking System," with publication number CN111050337A and publication date April 21, 2020, discloses an invention based on SDR that achieves "software-based configuration" of the hardware architecture, enabling flexible hardware configuration and settings. In the design of the cluster networking module's communication protocol, to meet the needs of different communication rates and environments, a fusion design is implemented at the link layer and network layer. A TDMA-based access control protocol is adopted to control different access users. A logical channel is introduced, and within this logical channel, signaling and data channels are further introduced to achieve network communication for multiple cluster users. A master-node-based decentralized network communication mode is designed, ensuring that the overall combat effectiveness of the cluster is not affected when a single node is attacked or damaged. However, this invention does not consider areas without base station signals or where base stations are difficult to set up, resulting in limited signal coverage. Summary of the Invention

[0006] This invention primarily addresses the issue of extended coverage and connectivity in ad hoc and clustered networks; it provides a method for implementing a clustered gateway in a TDMA wireless ad hoc network.

[0007] The above-mentioned technical problems of the present invention are mainly solved by the following technical solutions:

[0008] This invention includes the following steps:

[0009] S1: Complete the self-organizing network setup;

[0010] S2: When the self-organizing network relay node receives the self-organizing network service signaling, it will be transmitted in the self-organizing network and then transmitted to the self-organizing network cluster gateway TGR.

[0011] S3: The self-organizing network cluster gateway (TGR) initiates a service request to the cluster system through the cluster control channel;

[0012] S4: When the trunking system receives a service request, it allocates a service channel with a pair of times or an odd number of times to the trunking network. The ad hoc trunking gateway (TGR) will also receive the allocation signaling for this service channel at the same time.

[0013] S5: The self-organizing network trunking gateway (TGR) will send the received self-organizing network service signaling to the trunking network on the allocated trunking service channel;

[0014] S6: The associated routing node TSGR or the associated group leader node LR / TSGR relays the service signaling to other routing nodes in the self-organizing network, and each routing node in the self-organizing network then continues to forward it to the entire self-organizing network.

[0015] S7: After the service ends, the ad hoc network cluster gateway TGR waits on the even-slot cluster control channel and monitors the odd-slot of the ad hoc network.

[0016] This solution enables interoperability between the cluster network and the self-organizing network through the self-organizing network cluster gateway (TGR), without altering any communication methods of the cluster network, thus resolving the issue of expanding the coverage of the self-organizing network and the cluster network.

[0017] Preferably, in step S1:

[0018] After the self-organizing network is built, if the self-organizing network cluster gateway TGR finds the cluster system, it will send a time stamp signaling to the self-organizing network. Its time slot timing is based on the time slot timing of the cluster system. The sending identity is set to the self-organizing network cluster gateway TGR in the signaling.

[0019] Following the process of merging different self-organizing networks, the relevant self-organizing network nodes will synchronize to this time stamp after discovering the TGR time stamp signaling of this self-organizing network cluster gateway, and transmit the TGR time stamp signaling of this self-organizing network cluster gateway. At the same time, if there is a time stamp initiator leader node LR in the original self-organizing network, it will exit the LR role.

[0020] This scheme is adopted to ensure that the time slots of TDMA in ad hoc networks and trunked networks are fully aligned, so that the time slots do not overlap or conflict in time.

[0021] Preferably, in step S2, in an ad hoc network with an ad hoc network cluster gateway TGR, the ad hoc network cluster gateway TGR has two adjacent routing nodes. These two adjacent routing nodes can directly connect to the nodes of the ad hoc network cluster gateway TGR and become the associated routing nodes TSGR of the ad hoc network with the ad hoc network cluster gateway TGR.

[0022] The purpose of this scheme, where a self-organizing network trunking gateway (TGR) has two TGRs, is to ensure that regardless of whether the trunking service channel allocated by the trunking system is in an odd or even time slot, the self-organizing network trunking gateway (TGR) can transmit services between the self-organizing network and the trunking network without interruption.

[0023] Preferably, in the self-organizing network, the routing nodes that are preferentially connected to the self-organizing network cluster gateway TGR compete for the associated routing node TSGR and the group leader node LR. A total of 2 associated routing nodes TSGR are elected. One of the associated routing nodes TSGR is the node with the first time stamp in the self-organizing network and is the associated group leader node LR / TSGR. The node with the largest user address is selected as the associated group leader node LR / TSGR.

[0024] This approach allows for the selection of optimal routing nodes to ensure reliable signaling transmission.

[0025] Preferably, after the election of the ad hoc network cluster gateway (TGR), associated group leader node (LR / TSGR), and associated routing node (TSGR) is successful, each relay routing node in the ad hoc network monitors the ad hoc network relay channel according to the odd-even alternating access method of the ad hoc network. Specifically, if the pre-determined ad hoc network receive access time slot of the associated group leader node (LR / TSGR) is an even number of time slots, it receives data in even-numbered channel order; if a relay service is received, it forwards it on an odd-numbered channel. According to the odd-even alternating access method, if the ad hoc network receive access time slot of the associated routing node (TSGR) of an adjacent associated group leader node (LR / TSGR) is an odd number of time slots, it receives data in odd-numbered channel order; if a relay service is received, it forwards it on an even-numbered channel.

[0026] The advantage of using this alternating odd-even access method is that the timing of service transmission by each node is known to all nodes in the network. Each node can perform other operations in its own transmission time slot without missing the service transmissions of its neighboring nodes.

[0027] Preferably, in step S3, when the ad hoc network cluster gateway TGR receives service signaling from the associated ad hoc network routing node TSGR on any odd-numbered logical channel, it will initiate a service request to the cluster system on the cluster control channel TC as a regular trunked mobile station. If the service channel allocated by the cluster system is an even-numbered time slot channel, the ad hoc network cluster gateway TGR will continue to receive service signaling on this ad hoc network odd-numbered logical channel and forward it to the even-numbered time slot channel of the cluster system. If the service channel allocated by the cluster system is an odd-numbered time slot channel, according to the odd-even alternating reception and transmission characteristics of the ad hoc network, the ad hoc network cluster gateway TGR will switch to another ad hoc network even-numbered logical channel of the associated routing node TSGR to receive service signaling and forward it to the odd-numbered time slot channel of the cluster system; the cluster system will then receive the service signaling.

[0028] This approach avoids interfering with the workflow of both ad hoc and trunked networks, enabling seamless connection between the two networks and faster information transmission.

[0029] Preferably, in step S5, if the cluster system is allocated an even-numbered time slot service channel and cluster service signaling is issued, the ad hoc network cluster gateway TGR forwards the message in the odd-numbered time slots of the ad hoc network, and the destination address is the address of the associated routing node TSGR; if the cluster system is allocated an odd-numbered time slot service channel and cluster service signaling is issued, the ad hoc network cluster gateway TGR sends the message in the even-numbered time slots of the ad hoc network, and the destination address is the address of the associated group leader node LR / TSGR.

[0030] This approach avoids interfering with the workflow of both ad hoc and trunked networks, enabling seamless connection between the two networks and faster information transmission.

[0031] The beneficial effects of this invention are: it enables interoperability between the trunking network and the ad hoc network without changing any communication method of the trunking network; it allows the TDMA time slots of the ad hoc network and the trunking network to be synchronized and the TDMA information to be exchanged; when there is no service forwarding in the ad hoc network and the trunking network, the ad hoc network trunking gateway (TGR) will wait on the trunking control channel to monitor the ad hoc network and the trunking network, so that it can respond quickly if there is a service request. Attached Figure Description

[0032] Figure 1 This is a flowchart of the present invention.

[0033] Figure 2 This is a scan diagram of the self-organizing network relay node of the present invention.

[0034] Figure 3 This is the wait channel diagram of the TGR of the present invention.

[0035] Figure 4 This is an upload diagram of the business process of this invention.

[0036] Figure 5 This is a diagram illustrating the business process of Embodiment 1 of the present invention.

[0037] Figure 6 This is a diagram illustrating the business process of Embodiment 2 of the present invention. Detailed Implementation

[0038] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0039] Example 1:

[0040] This embodiment provides a method for implementing a cluster gateway in a TDMA wireless ad hoc network, such as... Figure 1 As shown, it includes the following steps:

[0041] S1: Complete the self-organizing network setup.

[0042] After the self-organizing network is built, if the self-organizing network cluster gateway TGR finds a reliable cluster system, it will send a timestamp signaling to the self-organizing network. Its timeslot timing is based on the timeslot timing of the cluster system. The sending identity is set as TGR in the signaling. Then, the self-organizing network will follow the process of merging different self-organizing networks. After the relevant self-organizing network nodes discover this self-organizing network cluster gateway TGR timestamp signaling, they will synchronize to this timestamp timing and transmit this TGR timestamp signaling. At the same time, if there is a timestamp initiator in the original self-organizing network, that is, the leader node LR, it will exit the LR role.

[0043] S2: When a self-organizing network relay node receives a self-organizing network service signaling message, it will be transmitted within the self-organizing network and then forwarded to the self-organizing network cluster gateway (TGR).

[0044] In an ad hoc network with a self-organizing network cluster gateway (TGR), the TGR has two adjacent routing nodes. These two adjacent routing nodes can directly connect to nodes of the TGR, becoming the associated routing nodes (TSGRs) with the TGR in the ad hoc network. Routing nodes in the ad hoc network that can effectively connect to the TGR can elect an associated routing node (TSGR) and a priority election for a group leader node (LR), resulting in two TSGRs. One of these TSGRs is the node with the first time stamp in the ad hoc network, i.e., the group leader node, and is called the associated group leader node (LR / TSGR). The node with the larger user address can be selected as the LR / TSGR. The other elected routing node is simply called the TSGR. The TGR, the associated group leader node (LR / TSGR), and the associated routing node (TSGR) can discover each other in pairs.

[0045] After the election of the ad hoc network cluster gateway (TGR), associated group leader node (LR / TSGR), and associated routing node (TSGR) is successful, each intermediate routing node in the ad hoc network monitors the ad hoc network relay channel according to the odd-even alternating access method of the ad hoc network. For example... Figure 2 As shown, the ad hoc network uses 5 frequency points, divided into 10 logical channels using 2-slot TDMA. CT0 and CT1 are the ad hoc network control channels, and T0, T1, T2, ..., T6, T7 are the ad hoc network service access channels. The leader node (LR / TSGR) has an even-numbered pre-defined ad hoc network receive access time slot, receiving data sequentially from T0, T2, ..., T6. The relay transmit access time slot is an odd-numbered time slot, meaning that after receiving relay services, the data is forwarded on one of the T1, T3, ..., T7 channels. Using an alternating odd-even access method, for adjacent LR / TSGRs, the ad hoc network receive access time slot is an odd-numbered time slot, receiving data sequentially from T1, T3, ..., T7 channels; the relay transmit access time slot is an even-numbered time slot, meaning that after receiving relay services, the data is forwarded on one of the T0, T2, ..., T6 channels.

[0046] S3: The self-organizing network cluster gateway (TGR) initiates service requests to the cluster system through the cluster control channel.

[0047] S4: When the trunking system receives a service request, it allocates a service channel with a certain number of times or an odd number of times to the trunking network. The ad hoc trunking gateway (TGR) will also receive the allocation signaling for this service channel.

[0048] When the ad hoc network trunking gateway (TGR) receives service signaling, such as voice service signaling, on an odd-numbered logical channel (T1, T3, ..., T7) from an associated ad hoc network routing node (TSGR), it will initiate a voice call request to the trunking system on the trunking control channel (TC) as a regular trunking mobile station. If the voice service channel allocated by the trunking system is an even-numbered time slot channel, the trunking gateway will continue to receive the voice service signaling on this ad hoc network odd-numbered logical channel and forward it to the even-numbered time slot channel of the trunking network. If the voice service channel allocated by the trunking system is an odd-numbered time slot channel, according to the odd-even alternating reception and transmission characteristics of the ad hoc network, the trunking gateway will switch to another ad hoc network even-numbered logical channel of the associated routing node (TSGR) to receive the voice service signaling and forward it to the odd-numbered time slot channel of the trunking network. In this way, the voice service of the ad hoc network is uploaded to the trunking system.

[0049] The purpose of having two associated routing nodes (TSGRs) in a TGR is to ensure that the self-organizing network cluster gateway (TGR) can upload self-organizing network services without interruption, regardless of whether the cluster service channel allocated by the cluster system is in an odd or even time slot.

[0050] S5: The self-organizing network cluster gateway TGR will send the received self-organizing network service signaling to the cluster network on the allocated cluster service channel; if it receives cluster service signaling on the allocated cluster network service channel, it will send the cluster service signaling to the self-organizing network associated routing node TSGR or the self-organizing network associated group leader node LR / TSGR.

[0051] like Figure 4 As shown, the dashed box represents a link in a self-organizing network, composed of the respective network routing nodes of R12, R11, R7, TSGR4, TSGR13, R1, and R2. TSGR4 and TSGR13 are the self-organizing network association nodes of the self-organizing network cluster gateway TGR3, with TSGR4 being the group leader node. Figure 4 The numbers at each node are the identification codes of the routing nodes within the ad hoc network, where 12 in R12 is the identification code of that routing node.

[0052] The leftmost node R12 in the ad hoc network initiates a voice service Sig:15-T0 on the T0 logical channel (T0 is the even-numbered logical channel number rotated to at the time of initiation). According to the alternating odd and even reception and transmission characteristics of the ad hoc network, when relayed to TSGR4, TSGR4 relays the message on the odd-numbered channel T5. After receiving this voice service signaling, the ad hoc network trunking gateway TGR3 initiates a call request Csig:TC0 to the trunking system on the trunking control channel TC0. It receives the channel allocation signaling GRT(TC1):TC0 from the trunking system, where TC1 indicates that the allocated service channel is an odd-numbered logical channel. Therefore, the ad hoc network trunking gateway TGR3 switches to receiving the voice service signaling sent by the TSGR13 node on the even-numbered logical channel of the ad hoc network, and then forwards these signaling messages to the odd-numbered service channels of the trunking.

[0053] S6: The associated routing node TSGR or the associated group leader node LR / TSGR relays the service signaling to other routing nodes in the self-organizing network, and each routing node in the self-organizing network then continues to forward it to the entire self-organizing network.

[0054] If the cluster system is allocated an even-numbered time slot service channel, the ad hoc network cluster gateway TGR will transmit in the odd-numbered time slots of the ad hoc network, with the destination address being the address of the associated routing node TSGR. For example... Figure 5 As shown, the ad hoc network cluster gateway TGR node receives the cluster channel allocation instruction at TC0. The allocated service channel is the even-numbered time slot logical channel TC0. Then, it receives the cluster service signaling at TC0 and transmits the service on the odd-numbered logical channel T1 of the ad hoc network: Sig:15-T1. Since TSGR4 is the group leader node and its Life value is selected as 15, the Life value of the TSGR13 node is even. TSGR13 receives the service on channel T1 and then relays it on channel T2: Sig:14-T2. Each relay node in the ad hoc network then continues to forward the service to the entire ad hoc network. Figure 5 The numbers at each node are the identification codes of the routing nodes within the ad hoc network, where 12 in R12 is the identification code of that routing node.

[0055] S7: After the entire self-organizing network receives a service instruction, it stops relay forwarding. After disconnection or timeout, each network returns to standby mode. The self-organizing network cluster gateway (TGR) waits on the cluster control channel and monitors the self-organizing network and the cluster network.

[0056] The self-organizing network cluster gateway TGR node performs dual monitoring, continuously monitoring at even-numbered positions, i.e. Figure 3 The trunking control channel is received in the TC time slot, and local ad hoc network signaling is received in odd-numbered positions, i.e., CT1, T1, ..., T7 time slots. The watchdog channel of the ad hoc network trunking gateway (TGR) node is as follows: Figure 3 As shown, TC is the trunking control channel, CT1 is the ad hoc network control channel, and T1, T3, ..., T7 are ad hoc network service channels.

[0057] In this embodiment, the communication process of service information is bidirectional, that is, the service signaling can be transmitted from the ad hoc network to the trunking network, or from the trunking network to the ad hoc network; the initiator is the same, it can be initiated by the trunking network user or the ad hoc network user.

[0058] Example 2:

[0059] When trunking system-related service signaling is relayed to an ad hoc network, if the trunking system allocates odd-numbered time slot service channels, the ad hoc network trunking gateway (TGR) transmits the signal in even-numbered time slots within the ad hoc network, with the destination address being the associated group leader node (LR / TSGR). For example... Figure 6 As shown, the ad hoc network cluster gateway TGR node receives the cluster channel allocation instruction at TC0, and the allocated service channel is the odd-slot logical channel TC1. Then, it receives the cluster service signaling at TC1 and transmits the service on the ad hoc network even-slot logical channel T0: Sig:15-T0. Since TSGR4 is the group leader node, it receives the service on the even-slot ad hoc channel T0 and then relays it on the odd-slot logical channel T1: Sig:14-T1. Each relay node in the ad hoc network then continues to forward the service to the entire ad hoc network. The remaining implementation steps are the same as in Example 1. Figure 6 The numbers at each node are the identification codes of the routing nodes within the ad hoc network, where 12 in R12 is the identification code of that routing node.

[0060] This invention enables interoperability between the trunking network and the ad hoc network without altering any communication methods of the trunking network; it allows the ad hoc network and the trunking network to operate on the same TDMA timing, thus preventing any information conflicts between them; when there is no service forwarding in the ad hoc network and the trunking network, the ad hoc network trunking gateway (TGR) will wait on the trunking control channel to monitor the ad hoc network and the trunking network, so that it can respond quickly to service requests.

[0061] It should be understood that the embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A method for implementing a trunking gateway in a TDMA wireless ad hoc network, characterized in that, Includes the following steps: S1: Complete the self-organizing network setup; S2: When the self-organizing network relay node receives the self-organizing network service signaling, it will be transmitted in the self-organizing network and then transmitted to the self-organizing network cluster gateway TGR. S3: The self-organizing network cluster gateway (TGR) initiates a service request to the cluster system through the cluster control channel; S4: When the trunking system receives a service request, it allocates a service channel with a pair of times or an odd number of times to the trunking network. The ad hoc trunking gateway (TGR) will also receive the allocation signaling for this service channel at the same time. S5: The self-organizing network trunking gateway (TGR) will send the received self-organizing network service signaling to the trunking network on the allocated trunking service channel; If trunking service signaling is received on the allocated trunking network service channel, the trunking service signaling is sent to the ad hoc network associated routing node TSGR or the ad hoc network associated group leader node LR / TSGR. S6: The associated routing node TSGR or associated group leader node LR / TSGR of the self-organizing network relays the cluster service signaling to other routing nodes in the self-organizing network, and each routing node in the self-organizing network then continues to forward it to the entire self-organizing network. S7: After the service ends, the ad hoc network cluster gateway TGR waits on the cluster control channel in even-numbered time slots and monitors the odd-numbered time slots of the ad hoc network.

2. The method for implementing a cluster gateway in a TDMA wireless ad hoc network according to claim 1, characterized in that, In step S1: After the self-organizing network is built, if the self-organizing network cluster gateway TGR finds the cluster system, it will send a time stamp signaling to the self-organizing network. Its time slot timing is based on the time slot timing of the cluster system, and the sending identity is set to the self-organizing network cluster gateway TGR in the time stamp signaling. Following the process of merging different self-organizing networks, the relevant self-organizing network nodes will synchronize to this time stamp after discovering the TGR time stamp signaling of this self-organizing network cluster gateway, and transmit the TGR time stamp signaling of this self-organizing network cluster gateway. At the same time, if there is a time stamp initiator leader node LR in the original self-organizing network, it will exit the LR role.

3. The method for implementing a trunking gateway in a TDMA wireless ad hoc network according to claim 1, characterized in that, In step S2, in an ad hoc network with an ad hoc network cluster gateway TGR, the ad hoc network cluster gateway TGR has two adjacent routing nodes. These two adjacent routing nodes can directly connect to the nodes of the ad hoc network cluster gateway TGR and become the associated routing nodes TSGR of the ad hoc network with the ad hoc network cluster gateway TGR.

4. The method for implementing a trunking gateway in a TDMA wireless ad hoc network according to claim 3, characterized in that, In the self-organizing network, the routing nodes that are preferentially connected to the self-organizing network cluster gateway TGR will elect an associated routing node TSGR and a group leader node LR. A total of 2 associated routing nodes TSGR will be elected. One of the associated routing nodes TSGR is the node with the first time stamp in the self-organizing network and is the associated group leader node LR / TSGR. The node with the largest user address will be the associated group leader node LR / TSGR.

5. The method for implementing a cluster gateway in a TDMA wireless ad hoc network according to claim 4, characterized in that, After the election of the ad hoc network cluster gateway (TGR), associated group leader node (LR / TSGR), and associated routing node (TSGR) is successful, each relay routing node in the ad hoc network monitors the ad hoc network relay channel according to the odd-even alternating access method of the ad hoc network. Specifically, if the pre-determined ad hoc network receive access time slot of the associated group leader node (LR / TSGR) is an even number of time slots, it receives data in even-numbered channel order; if a relay service is received, it forwards it on an odd-numbered channel. According to the odd-even alternating access method, if the ad hoc network receive access time slot of the associated routing node (TSGR) of the adjacent associated group leader node (LR / TSGR) is an odd number of time slots, it receives data in odd-numbered channel order; if a relay service is received, it forwards it on an even-numbered channel.

6. The method for implementing a trunking gateway in a TDMA wireless ad hoc network according to claim 1, characterized in that, In step S4, when the ad hoc network cluster gateway TGR receives service signaling from the associated ad hoc network routing node TSGR on any odd-numbered logical channel, it will initiate a service request to the cluster system on the cluster control channel TC as a normal cluster mobile station. If the service channel allocated by the cluster system is an even-numbered time slot channel, the ad hoc network cluster gateway TGR will continue to receive service signaling on this ad hoc network odd-numbered logical channel and forward it to the cluster system on the even-numbered time slot channel of the cluster system. If the service channel allocated by the cluster system is an odd-numbered time slot channel, according to the odd-even alternating reception and transmission characteristics of the ad hoc network, the ad hoc network cluster gateway TGR will switch to the ad hoc network even-numbered logical channel of another associated routing node TSGR to receive service signaling and forward it to the cluster system on the odd-numbered time slot channel of the cluster system. The cluster system will then receive the service signaling.

7. The method for implementing a trunking gateway in a TDMA wireless ad hoc network according to claim 1, characterized in that, In step S5, if the cluster system is allocated an even-numbered time slot service channel and cluster service signaling is issued, the ad hoc network cluster gateway TGR forwards the message in the odd-numbered time slots of the ad hoc network, and the destination address is the address of the associated routing node TSGR; if the cluster system is allocated an odd-numbered time slot service channel and cluster service signaling is issued, the ad hoc network cluster gateway TGR sends the message in the even-numbered time slots of the ad hoc network, and the destination address is the address of the associated group leader node LR / TSGR.

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