Self-organizing network

Abstract

The invention relates to the technical field of ad hoc networks, and particularly discloses an ad hoc network, which comprises a plurality of ad hoc network nodes, each self-organizing network node at least comprises a main control unit, a contact unit and N service units; the main control unit is used for determining a forwarding strategy according to the network topology information, the service unit working state information and the contact unit working state information; the contact unit is used for constructing a contact network through the contact channel of the self-organizing network node and the contact channels of the contact units of other self-organizing network nodes in the self-organizing network; the service unit is used for constructing a service network through a service channel of the self-organizing network node and service channels of service units of other self-organizing network nodes in the self-organizing network; and the plurality of service units can be aggregated in a synchronous mode or an asynchronous mode. The self-organizing network provided by the invention can eliminate the network single-point transmission bottleneck in the self-organizing network.

Description

Technical Field

[0001] The present invention relates to the technical field of self-organizing networks, and in particular to a self-organizing network. Background Art

[0002] Compared to cellular networks, ad hoc networks (ATNs) are widely used in private networks and other communications fields due to their decentralized, self-organizing, infrastructure-independent, and multi-hop self-relaying characteristics. Traditional ATNs feature a symmetrical architecture, where each node possesses the same capabilities and equal status. In practical applications, factors such as network topology and actual business application requirements inevitably lead to single-point transmission bottlenecks, which in turn degrade the overall network transmission performance. For example, if an ATN has nodes and all services must be forwarded through these nodes, the service transmission capacity requirements for these nodes must be higher than for other nodes. For another example, when carrying tree-based command services on an ATN with a flat network architecture, the service transmission capacity requirements for the command center node are significantly higher than for other nodes. In traditional ATN systems, improving network transmission capacity requires upgrading the equipment capabilities of all nodes in the network, resulting in a surge in network deployment and usage costs.

[0003] Therefore, how to eliminate the network single-point transmission bottleneck in an ad hoc network to improve network transmission efficiency has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0004] The present invention provides a self-organizing network, which solves the problem of transmission bottleneck in single-point transmission of self-organizing networks in related technologies.

[0005] As one aspect of the present invention, a self-organizing network is provided, comprising:

[0006] A plurality of self-organizing network nodes, wherein the self-organizing network nodes are communicatively connected to each other via a communication network;

[0007] Each self-organizing network node includes at least one main control unit, one liaison unit and N service units, where N is a natural number greater than or equal to 0. The liaison unit and the service unit are both communicatively connected to the main control unit, and each self-organizing network node is communicatively connected to its respective peripheral device through its respective main control unit.

[0008] The main control unit is used to determine a forwarding strategy based on network topology information, business unit working status information, and contact unit working status information, and is used to forward the received peripheral service message to the corresponding contact unit and / or business unit according to the forwarding strategy, and is used to forward the received air interface service message of the contact unit or business unit to the peripheral or contact unit and / or business unit according to the forwarding strategy;

[0009] The communication unit is used to form the communication network through the communication channel of the self-organizing network node where the communication unit is located and the communication channels of the communication units of other self-organizing network nodes in the self-organizing network, and is used to carry service messages between the self-organizing network nodes and forward air interface service messages in the communication network according to the forwarding strategy of the main control unit, wherein the air interface path where the communication unit in each self-organizing network node is located forms the communication channel;

[0010] The service unit is used to build a service network through the service channel of the self-organizing network node where it is located and the service channels of the service units of other self-organizing network nodes in the self-organizing network, and is used to carry service messages between self-organizing network nodes and forward air interface service messages in the service network according to the forwarding strategy of the main control unit;

[0011] The plurality of service units can be aggregated in a synchronous manner or an asynchronous manner.

[0012] Furthermore, the main control unit is also used to collect capability information of different business units of the self-organizing network node where it is located and form a business unit capability set, and spread the business unit capability set in the one-hop neighbor self-organizing network node through the communication network.

[0013] Furthermore, the main control unit is also used to perform business network neighbor detection triggering judgment between adjacent nodes with the business unit capability set of its own self-organizing network node after receiving the business unit capability set in the one-hop neighbor self-organizing network node to achieve business network topology maintenance.

[0014] Furthermore, the main control unit is further configured to, upon receiving the service unit capability set in the one-hop neighbor self-organizing network node, perform service network neighbor detection triggering judgment between adjacent nodes together with the service unit capability set of the self-organizing network node where the main control unit is located, including:

[0015] Compare the service unit capability in the service unit capability set of each one-hop neighbor self-organizing network node with the service unit capability in the service unit capability set of the self-organizing network node;

[0016] If at least one business unit capability in the business unit capability set of the self-organizing network node is the same as the business unit capability in the business unit capability set of the one-hop neighboring self-organizing network node, then the business unit corresponding to the business unit capability in the business unit capability set of the self-organizing network node is marked as a unit that requires business network neighbor detection, wherein the business unit capability includes at least the operating frequency band, operating mode, channel bandwidth and waveform modulation;

[0017] A service network neighbor detection indication is issued to each service unit marked as requiring service network neighbor detection. The service network neighbor detection indication is used to notify the service unit to perform service network neighbor detection through the air interface where it is located, wherein the service network neighbor detection indication includes at least the service unit ID, the operating frequency band of the service network, and the resources required for detection.

[0018] Furthermore, the main control unit is used to receive business network neighbor information reported by the business unit, and to diffuse the business network neighbor information through the communication network, and to calculate business network topology information based on the business network neighbor information of different self-organizing network nodes.

[0019] Furthermore, the main control unit is used to receive the business unit working status information of the self-organizing network node where its own business unit is located reported by its own business unit, and to spread the business unit working status information through the communication network, and to update the locally recorded business unit status and the locally recorded business unit status of other self-organizing network nodes according to the business unit working status information.

[0020] Furthermore, the main control unit is used to forward the received peripheral service message to the corresponding contact unit and / or business unit according to the forwarding strategy, and is used to forward the received air interface service message of the contact unit or business unit to the peripheral or contact unit and / or business unit according to the forwarding strategy, including:

[0021] When it is determined that the current service network is disconnected and / or the number of service units is 0, query whether there is a corresponding forwarding rule based on the destination address of the received service message, and if it is determined that there is a corresponding forwarding rule, send the service message and the forwarded next hop address to the contact unit for forwarding processing or send the service message to the external device, and if it is determined that there is no corresponding forwarding rule, discard the service message;

[0022] When it is determined that the current business network is normally connected and the number of business units is at least 1, it queries whether there is a corresponding forwarding rule based on the destination address of the received business message, and when it is determined that there is a corresponding forwarding rule, it sends the business message and the next hop address to the business unit or contact unit determined by the forwarding rule for forwarding processing or sends it to the peripheral device, and discards the business message when it is determined that there is no corresponding forwarding rule.

[0023] Furthermore, a) after receiving the service message forwarded by the main control unit, the contact unit can perform forwarding processing, including:

[0024] a1) If the communication unit stores the forwarding rule itself, when the communication unit receives the service message forwarded by the main control unit:

[0025] When the contact unit determines that there is a forwarding rule corresponding to the service message according to the forwarding rule stored in the contact unit, forwarding the service message over the air interface on the contact network;

[0026] When the contact unit determines that there is no forwarding rule corresponding to the service message according to the forwarding rule stored in the contact unit, the contact unit discards the service message;

[0027] a2) If the communication unit does not store the forwarding rule, when the communication unit receives the service message forwarded by the main control unit:

[0028] Forwarding the service message directly to the target contact unit that has been queried and determined by the main control unit;

[0029] b) The contact unit can also forward the air interface service message upon receiving the air interface service message, including:

[0030] b1) If the contact unit stores the forwarding rule itself, when the contact unit receives the air interface service message:

[0031] When the contact unit determines, based on the forwarding rule stored in itself, that there is a forwarding rule corresponding to the air interface service message, and determines, based on the destination address of the air interface service message, that the destination address of the air interface service message is a peripheral device or an external network of the self-organizing network node where the contact unit is located, the contact unit is capable of forwarding the air interface service message to the main control unit, so that the main control unit forwards the air interface service message to the peripheral device or external network of the self-organizing network node where the contact unit is located;

[0032] When the contact unit determines that there is a forwarding rule corresponding to the air interface service message according to the forwarding rule stored in the contact unit, and determines that the air interface service message is a relay message according to the destination address of the air interface service message, the contact unit can perform air interface forwarding on the contact network;

[0033] When the contact unit determines that there is no forwarding rule corresponding to the air interface service message according to the forwarding rule stored in the contact unit, the contact unit forwards the air interface service message to the main control unit so that the main control unit performs a forwarding query;

[0034] b2) If the contact unit does not store the forwarding rule, then upon receiving the air interface service message:

[0035] The air interface service message is forwarded to the main control unit so that the main control unit performs a forwarding query.

[0036] Furthermore, c) the service unit can perform forwarding processing after receiving the service message forwarded by the main control unit, including:

[0037] c1) If the service unit stores the forwarding rule itself, when the service unit receives the service message forwarded by the main control unit:

[0038] When the service unit determines that there is a forwarding rule corresponding to the service message according to the forwarding rule stored in the service unit, forwarding the service message over the service network through an air interface;

[0039] When the service unit determines that there is no forwarding rule corresponding to the service message according to the forwarding rule stored in the service unit, the service message is discarded;

[0040] c2) If the service unit does not store the forwarding rule itself, then when the service unit receives the service message forwarded by the main control unit:

[0041] Forwarding the service message directly to the target service unit that has been queried and determined by the main control unit;

[0042] d) The service unit can also forward the air interface service message upon receiving the air interface service message, including:

[0043] d1) If the service unit itself stores the forwarding rule, then when the service unit receives the air interface service message:

[0044] When the business unit determines, based on the forwarding rule stored in itself, that there is a forwarding rule corresponding to the air interface business message, and determines, based on the destination address of the air interface business message, that the destination address of the air interface business message is a peripheral device or an external network of the self-organizing network node where the business unit is located, the business unit is able to forward the air interface business message to the main control unit, so that the main control unit forwards the air interface business message to the peripheral device or external network of the self-organizing network node where the business unit is located;

[0045] When the service unit determines, based on the forwarding rule stored in itself, that there is a forwarding rule corresponding to the air interface service message, and determines, based on the destination address of the air interface service message, that the air interface service message is a relay message, the service unit can forward the air interface service message and the next hop address to the target service unit determined by the forwarding rule according to the forwarding rule stored in itself, so that the target service unit performs air interface forwarding on the service network;

[0046] When the service unit determines that there is no forwarding rule corresponding to the air interface service message according to the forwarding rule stored in the service unit, the service unit forwards the air interface service message to the main control unit so that the main control unit performs a forwarding query;

[0047] d2) If the service unit itself does not store the forwarding rule, when the service unit receives the air interface service message:

[0048] The air interface service message is forwarded to the main control unit so that the main control unit performs a forwarding query.

[0049] Furthermore, in a centralized deployment mode, the main control unit, the contact unit and the business unit are all centrally deployed in the same device;

[0050] Separate deployment mode: the main control unit, contact unit and business unit are separately deployed in different devices;

[0051] In a hybrid deployment mode, at least the business unit and the main control unit are separately deployed in different devices.

[0052] The self-organizing network provided by the present invention realizes communication connection between each self-organizing network node through a communication network, and each self-organizing network node can aggregate and use different business units in a synchronous or asynchronous manner. When the self-organizing network encounters a single-point transmission bottleneck, the data transmission and reception capabilities of specific nodes in the network can be improved by superimposing business units to eliminate the network bottleneck, thereby improving the transmission efficiency of the entire self-organizing network. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation of the present invention.

[0054] Figure 1 This is a structural block diagram of the self-organizing network provided by the present invention.

[0055] Figure 2 This is a structural block diagram of a specific implementation scheme of the self-organizing network provided by the present invention.

[0056] Figure 3 This is a diagram of the working principle of the self-organizing network provided by the present invention.

[0057] Figure 4 A schematic diagram of the forwarding path of data services by the self-organizing network nodes provided by the present invention.

[0058] Figure 5a A structural block diagram of the self-organizing network node device provided by the present invention, in which only a main control unit and a communication unit are deployed.

[0059] Figure 5b This is a structural block diagram of the centralized deployment of the main control unit, contact unit and business unit in the self-organizing network node device provided by the present invention.

[0060] Figure 5c This is a structural block diagram of the self-organizing network node device provided by the present invention in which the main control unit, the contact unit and the business unit are deployed separately.

[0061] Figure 5d This is a structural block diagram of the self-organizing network node device provided by the present invention, in which the main control unit and the contact unit are centrally deployed, and the business unit is separately deployed.

[0062] Figure 5e This is a structural block diagram of the centralized deployment of the main control unit, liaison unit, and some business units provided by the present invention.

[0063] Figure 6a This is a structural block diagram of each self-organizing network node in the single-channel self-organizing network provided by the present invention.

[0064] Figure 6b This is a network schematic diagram of a single-channel self-organizing network with a transmission bottleneck provided by the present invention.

[0065] Figure 6c The present invention provides Figure 6b Schematic diagram of the expanded self-organizing network.

[0066] Figure 7a A network schematic diagram of a multi-channel self-organizing network with a transmission bottleneck provided by the present invention.

[0067] Figure 7b The present invention provides Figure 7a Schematic diagram of the expanded self-organizing network. DETAILED DESCRIPTION

[0068] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0069] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0070] It should be noted that the terms "first," "second," and the like in the specification and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate for the embodiments of the present invention described herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatuses.

[0071] In this embodiment, a self-organizing network is provided. Figure 1 1 is a structural diagram of a self-organizing network 10 provided according to an embodiment of the present invention. Figure 1 Shown, including:

[0072] A plurality of self-organizing network nodes 100, wherein the self-organizing network nodes 100 are communicatively connected to each other via a communication network;

[0073] Each self-organizing network node 100 includes at least one main control unit 110, one liaison unit 120, and N service units 130, where N is a natural number greater than or equal to 0. The liaison unit 120 and the service unit 130 are both communicatively connected to the main control unit 110, and each self-organizing network node 100 is communicatively connected to its own peripheral device through its own main control unit 110.

[0074] The main control unit 110 is used to determine a forwarding strategy based on network topology information, business unit working status information, and contact unit working status information, and is used to forward received peripheral service messages to the corresponding contact unit 120 and / or business unit 130 according to the forwarding strategy, and is used to forward received air interface service messages of the contact unit 120 or business unit 130 to the peripheral device or the contact unit 120 and / or business unit 130 according to the forwarding strategy;

[0075] The communication unit 120 is used to establish the communication network through the communication channel of the self-organizing network node in which it is located and the communication channels of the communication units 120 of other self-organizing network nodes in the self-organizing network, and is used to carry service messages between self-organizing network nodes and forward air interface service messages in the communication network according to the forwarding strategy of the main control unit 110, wherein the air interface path where the communication unit 120 in each self-organizing network node is located forms the communication channel;

[0076] The service unit 130 is used to build a service network through the service channel of the self-organizing network node in which it is located and the service channels of the service units 130 of other self-organizing network nodes in the self-organizing network, and to forward air interface service messages in the service network according to the forwarding strategy of the main control unit 110;

[0077] The plurality of service units 130 can be aggregated in a synchronous manner or an asynchronous manner.

[0078] It should be noted that the service messages in the embodiment of the present invention may specifically include messages required for functions such as network topology maintenance, node capability diffusion, air interface resource coordination, service channel establishment, and routing forwarding strategy calculation.

[0079] In an embodiment of the present invention, the main control unit 110 is used to implement the control and management of step-by-step self-organizing network nodes. The main control unit 110 collects network topology maintenance information, adjacent node spectrum situation information, node capabilities and status information, etc. from the air interface of the contact unit 120, performs air interface resource coordination, global topology maintenance, service forwarding strategy calculation, etc. through the contact channel, and communicates with the peripheral device (or external network) through the service port. In the sending direction, the main control unit 110 receives the service message from the peripheral device, and transfers it to the corresponding contact unit 120 or service unit 130 for sending at the air interface according to the forwarding strategy; in the receiving direction, it receives the air interface service message from the contact unit 120 or service unit 130, transfers the local service message to the peripheral device for processing through the service port according to the forwarding strategy, and transfers the relay service message to the corresponding contact unit 120 or service unit 130 for sending at the air interface. It should be noted here that the self-organizing network node device can optionally support an external synchronization port and a management port. If the self-organizing network node device needs to support external synchronization, the main control unit 110 will maintain synchronization with the external clock source through the external synchronization port; if the self-organizing network node device provides an independent management port, the main control unit 110 will receive external management instructions through the management port and respond. If the self-organizing network node device needs to support external synchronization or asynchronous operation, the main control unit 110 provides a synchronization signal for the communication unit 120 and the business unit 130; if the self-organizing network node device needs to support self-synchronization, the main control unit 110 maintains network-level synchronization through the communication unit 120; the main control unit 110 of the network synchronization source node keeps synchronized with the external clock source or directly uses its own clock as the network clock, and the synchronization signal of the communication unit 120 and the business unit 130 is provided by the main control unit 110; for non-network synchronization source nodes, the synchronization signal of the main control unit 110 is obtained after the communication unit 120 tracks the network synchronization relationship step by step (the synchronization signal of the main control unit 110 comes from the communication unit 120), and the synchronization signal of the business unit 130 comes from the main control unit 110.

[0080] The liaison unit 120 is used to carry interactive messages related to functions such as air interface resource coordination, network topology maintenance, routing and forwarding strategy calculation, and service path selection and establishment among nodes in the distributed self-organizing network. It also provides guaranteed connectivity for the self-organizing network, providing a last resort in the event of a complete service unit failure or disconnection. The air interface path of the liaison unit 120 is called a liaison channel. The liaison unit 120 uses this channel to build a liaison network and achieve interoperability between liaison units. The liaison unit 120 implements hop-by-hop broadband transmission of air interface service information based on forwarding policies issued by the main control unit 130.

[0081] In the embodiments of the present invention, service unit 130 is used to implement service transmission between nodes in a self-organizing network. The air interface path of service unit 130 is called a service channel. Service units 130 use service channels to build a one-hop service network between adjacent nodes. Service units 130 implement hop-by-hop broadband transmission of air interface service information based on forwarding policies issued by master control unit 110. The resources used by the service channel are determined by the master control unit to which the node belongs, or jointly by the master control unit and service unit. Simultaneously, service units report their own air interface spectrum status information, service load information, device capability information, and service unit status information to the master control unit for collaborative generation of network-level service unit forwarding policies and resource coordination.

[0082] It should be noted that the forwarding strategy in the embodiment of the present invention is to determine the forwarding path according to the routing table, which is well known to those skilled in the art and will not be described in detail here.

[0083] In summary, the self-organizing network provided by the embodiment of the present invention includes multiple self-organizing network nodes, and each self-organizing network node includes at least one main control unit 110, one communication unit 120 and N business units 130, where N≥0, and different business units 130 are aggregated and used in a synchronous manner (time division) or asynchronous manner (frequency division, space division). When the self-organizing network encounters a single-point transmission bottleneck, the data transmission and reception capabilities of specific nodes in the network can be effectively increased by superimposing business units, thereby eliminating network bottlenecks and improving the transmission efficiency of the entire network. The communication unit 120 and the business unit 130 in the embodiment of the present invention both have independent baseband waveform protocol processing capabilities, and the baseband waveforms deployed thereon can be different. For example, the communication unit 120 can deploy a low-interception anti-interference waveform, and the business unit 130 can deploy a large-bandwidth, high-traffic waveform. The frequencies, beams, transmission powers, antennas, etc. used between the communication unit 120 and the business unit 130, as well as between different business units 130, can be different.

[0084] Therefore, in the self-organizing network provided by the embodiment of the present invention, each self-organizing network node realizes communication connection through a communication network, and each self-organizing network node can aggregate and use different business units in a synchronous or asynchronous manner. When the self-organizing network encounters a single-point transmission bottleneck, the data sending and receiving capabilities of specific nodes in the network can be improved by superimposing business units to eliminate network bottlenecks, thereby improving the transmission efficiency of the entire self-organizing network.

[0085] In an embodiment of the present invention, each self-organizing network node can provide four types of interfaces to the outside: a service port, an air port, an external synchronization port, and a management port, wherein the external synchronization port and the management port are both optional interfaces. Specifically, the service port is mainly used for two-way service interaction between the self-organizing network node and peripherals or external networks. The service port can be an Ethernet port, a serial port, a wireless LAN, etc. in physical form, and the service port is provided to the outside by the main control unit. The air port specifically refers to the air interface, which is mainly used for wireless interconnection between self-organizing network nodes. The communication units are interconnected through the air interface communication channel to build a communication network, and the service units build a one-hop service network between the service units through the air interface service channel.

[0086] The external synchronization port is an optional interface. If the self-organizing network protocol requires that the air interface of each node be synchronized, the main control unit can maintain synchronization with the external clock source through the external synchronization port and provide synchronization signals to the internal communication unit and business unit. If there is no such requirement, this interface can be not implemented.

[0087] The management port is specifically an optional interface, through which the self-organizing network node receives external management instructions and responds. The management port can be physically merged with the service port.

[0088] like Figure 2 As shown, it is a self-organizing network provided by an embodiment of the present invention, which may include M nodes, where M>1; each node includes Ni business units, where Ni≥0, i represents the node index and i∈[1…M].

[0089] In an embodiment of the present invention, the main control unit 110 is also used to collect capability information of different business units 130 of the self-organizing network node where it is located and form a business unit capability set, and spread the business unit capability set in the one-hop neighbor self-organizing network node through the communication network.

[0090] It should be understood that the main control unit 110 collects the capability information of different business units of the self-organizing network nodes and spreads the business unit capability set formed by the business unit capability information through the communication network, so that each self-organizing network node in the self-organizing network can obtain the business unit capability information of other self-organizing network nodes in the self-organizing network.

[0091] In an embodiment of the present invention, the main control unit 110 is also used to, after receiving the service unit capability set in a one-hop neighbor self-organizing network node, perform service network neighbor detection triggering judgment between adjacent nodes with the service unit capability set of its own self-organizing network node to achieve service network topology maintenance.

[0092] It should be understood that, after the main control unit in each self-organizing network node receives the service unit capability set in the one-hop neighbor self-organizing network node, it needs to perform a service network neighbor detection trigger judgment between adjacent nodes with the service unit capability set of its own self-organizing network node in order to achieve service network topology maintenance. Specifically, after the main control unit M1 in the self-organizing network node 1 receives the service unit capability set in the one-hop neighbor self-organizing network node 2, the main control unit M1 in the self-organizing network node 1 needs to perform a service network neighbor detection trigger judgment between adjacent nodes with the service unit capability set of its own self-organizing network node 1 in order to achieve service network topology maintenance.

[0093] In an embodiment of the present invention, the main control unit 110 is further configured to, upon receiving a service unit capability set in a one-hop neighbor self-organizing network node, perform service network neighbor detection triggering judgment between adjacent nodes with the service unit capability set of the self-organizing network node in which the main control unit 110 is located, including:

[0094] Compare the service unit capability in the service unit capability set of each one-hop neighbor self-organizing network node with the service unit capability in the service unit capability set of the self-organizing network node;

[0095] If at least one business unit capability in the business unit capability set of the self-organizing network node is the same as the business unit capability in the business unit capability set of the one-hop neighboring self-organizing network node, then the business unit corresponding to the business unit capability in the business unit capability set of the self-organizing network node is marked as a unit that requires business network neighbor detection, wherein the business unit capability includes at least the operating frequency band, operating mode, channel bandwidth and waveform modulation;

[0096] A service network neighbor detection indication is issued to each service unit marked as requiring service network neighbor detection. The service network neighbor detection indication is used to notify the service unit to perform service network neighbor detection through the air interface where it is located, wherein the service network neighbor detection indication includes at least the service unit ID, the operating frequency band of the service network, and the resources required for detection.

[0097] In an embodiment of the present invention, for example, the main control unit M1 in the self-organizing network node 1 compares the business unit capabilities in the business unit capability set of each one-hop neighbor self-organizing network node with the business unit capabilities in the business unit capability set of the self-organizing network node 1. If at least one business unit capability in the business unit capability set of the self-organizing network node 1 is the same as the business unit capability in the business unit capability set of the one-hop neighbor self-organizing network node, then the business unit corresponding to the business unit capability in the business unit capability set of the self-organizing network node 1 is marked as a unit requiring business network neighbor detection, and then a business network neighbor detection indication is issued to the business unit marked as requiring business network neighbor detection. Based on the above detection method, the capability detection of the business unit in each self-organizing network node can be realized, so that the business capability of each business unit in each self-organizing network node can be obtained.

[0098] Specifically, the main control unit 110 is used to receive the service network neighbor information reported by the service unit 130, and to diffuse the service network neighbor information through the communication network, and to calculate the service network topology information according to the service network neighbor information of different self-organizing network nodes.

[0099] In the embodiment of the present invention, the main control unit 110 receives the service network neighbor information reported by the service unit 130, and then spreads the service network neighbor information through the communication network.

[0100] Specifically, the main control unit 110 is used to receive the business unit working status information of the self-organizing network node where its own business unit is located reported by its own business unit, and to spread the business unit working status information through the communication network, and to update the locally recorded business unit status and the locally recorded business unit status of other self-organizing network nodes according to the business unit working status information.

[0101] In an embodiment of the present invention, the business unit in each self-organizing network node can report the business unit working status information to the main control unit in the self-organizing network node where it is located, and the main control unit can spread the business unit working status information reported by the business unit through the communication network, and update the locally recorded business unit status of its own self-organizing network node based on the received business unit working status information in its own self-organizing network node, and update the locally recorded business unit status of other self-organizing network nodes based on the business unit working status information of other self-organizing network nodes received through the communication network.

[0102] The following combination Figure 3 The specific working principle of the self-organizing network provided by the present invention is described in detail.

[0103] (1) When the self-organizing network node is initially started, the contact unit of each self-organizing network node initiates a registration process to the main control unit, notifying the main control unit that the contact unit is ready and can work normally; the contact unit can actively send a "contact unit registration message", which carries the contact unit device information, including at least: contact unit ID, working frequency band, channel bandwidth, maximum transmission power, etc.; after receiving the message, the main control unit can send a "contact unit registration response" message to the contact unit, which carries the contact unit ID, indicating that the registration of the contact unit is complete.

[0104] (2) After the self-organizing network node is initially started, the business unit of each self-organizing network node registers its own capability information with the main control unit, notifying the main control unit that the business unit is ready and can work normally; the business unit can actively send a "business unit capability registration" message, which carries the business unit capability information, and the specific content includes at least: business unit ID, business unit capability (working frequency band, working mode (synchronous, asynchronous), number of antennas, channel bandwidth, coverage type (omnidirectional, directional, beam scanning), maximum transmission power, waveform modulation, number of channels, etc.); after receiving the message, the main control unit can send a "business unit capability registration response" message to the business unit, which carries the business unit ID, indicating that the registration of the business unit is complete.

[0105] (3) The main control unit collects the capability information of different business units in its self-organizing network nodes to form a "business unit capability set". After the business unit is registered, it waits for the control instruction of the main control unit.

[0106] (4) After the communication unit is successfully registered, the main control unit can control the communication unit to build a communication network according to the network construction and network maintenance rules of the self-organizing network: if the communication unit senses through air interface monitoring that the communication network already exists, the main control unit controls the communication unit to join the communication network, otherwise the main control unit controls the communication unit to build a new communication network that only includes itself; if the communication unit senses through the air interface that other communication sub-networks are different from its own communication sub-network (the same communication network may form different connected sets due to terrain, building obstruction, etc., and each connected set constitutes a communication sub-network), the communication sub-networks are merged according to the networking rules of the self-organizing network (different communication sub-networks are merged into a larger communication network).

[0107] (5) The master control unit adjusts the resource usage and routing forwarding strategy of the contact unit according to the network construction and network maintenance rules of the self-organizing network, and makes adjustments through the "resource / forwarding strategy allocation" message.

[0108] (6) After the communication network is successfully constructed, the master control unit can spread the "business unit capability set" information of its own node in one-hop neighbors through the communication network (via the communication unit).

[0109] (7) After receiving the "business unit capability set" of the one-hop neighbor via the communication unit, the main control unit of the adjacent node performs a business network neighbor detection trigger decision between the adjacent nodes and the "business unit capability set" of its own node:

[0110] a) The master control unit compares the "service unit capabilities" in the "service unit capability set" of each one-hop neighbor node. If there is a "service unit capability" of its own that is the same as the operating frequency band, operating mode, channel bandwidth, waveform modulation, etc. in the "service unit capability", the master control unit marks the service unit corresponding to its own "service unit capability" as a "service network neighbor detection required" unit;

[0111] b) The main control unit sends a "service network neighbor detection indication" to each "service unit" marked as "needing service network neighbor detection", notifying the service unit that it needs to perform "service network neighbor detection" on the air interface; the indication message includes at least: service unit ID, service network operating frequency band (full frequency band detection or partial frequency band detection), detection resources (competitive or non-competitive). If it is non-competitive detection, the main control unit needs to provide specific allocated time domain, frequency domain, spatial domain (beam) and other resources or resource combinations at the same time.

[0112] (8) After receiving the "service network neighbor detection indication", the service unit starts and maintains the "service network neighbor detection" process on the air interface. This process can adopt the neighbor discovery mechanism of the self-organizing network, that is, each service unit sends a broadcast message on the indicated resource, which carries at least the ID information of its own service unit and the ID information of the received adjacent service unit in the service network. Under normal circumstances, the adjacent service units will know whether they are bidirectionally reachable through a maximum of three "handshakes".

[0113] (9) The business unit reports all the information of the one-hop neighbors of the business network that it has discovered ("business network neighbor information": equipment capabilities and equipment status of adjacent business units, etc.) to the main control unit (this can be done through the "business network neighbor status report" message).

[0114] (10) The main control unit can spread the collected “business network neighbor information” through the communication network; the main control unit calculates and maintains the business network topology based on the collected business network neighbor information sent by different nodes;

[0115] (11) The business unit reports its current working status information (such as the perceived spectrum situation of the business network air interface, the business volume carried by the business unit, business congestion, business network air interface load, and business unit equipment resource status) to the main control unit of its own node through the "business unit working status reporting" message periodically or event-based, or periodically and event-based.

[0116] (12) The main control unit spreads the collected “business unit working status information” of its own nodes through the communication network ( Figure 3 "Business Unit Status Information Diffusion" in [1].

[0117] (13) The main control unit updates the locally recorded business unit status based on the “business unit working status information” reported by its own business unit.

[0118] (14) The main control unit updates the status of other node business units recorded locally based on the "business unit working status information" received through the communication network.

[0119] (15) The main control unit calculates the forwarding strategy based on the information such as the business network topology and the working status of the business units currently collected, determines the forwarding rules for peripheral services to different business units, determines the air interface forwarding rules for different business units, and determines the intra-unit and inter-unit forwarding rules for the business unit air interface receiving services.

[0120] (16) If a non-competitive resource allocation strategy is adopted, the main control unit will perform network-level resource coordination based on the currently collected working status information of itself and adjacent business units, and determine the time domain, frequency domain, and air domain resources that each business unit can use.

[0121] (17) The communication unit distributes the determined forwarding strategies and resources to each business unit, and each business unit schedules and forwards air interface services accordingly.

[0122] In an embodiment of the present invention, the main control unit is used to forward the received peripheral service message to the corresponding contact unit and / or service unit according to the forwarding strategy, and is used to forward the received air interface service message of the contact unit or service unit to the peripheral or contact unit and / or service unit according to the forwarding strategy, including:

[0123] When it is determined that the current service network is disconnected and / or the number of service units is 0, query whether there is a corresponding forwarding rule based on the destination address of the received service message, and if it is determined that there is a corresponding forwarding rule, send the service message and the forwarded next hop address to the contact unit for forwarding processing or send the service message to the external device, and if it is determined that there is no corresponding forwarding rule, discard the service message;

[0124] When it is determined that the current business network is normally connected and the number of business units is at least 1, it queries whether there is a corresponding forwarding rule based on the destination address of the received business message, and when it is determined that there is a corresponding forwarding rule, it sends the business message and the next hop address to the business unit or contact unit determined by the forwarding rule for forwarding processing or sends it to the peripheral device, and discards the business message when it is determined that there is no corresponding forwarding rule.

[0125] More specifically, a) after receiving the service message forwarded by the main control unit, the contact unit can perform forwarding processing, including:

[0126] a1) If the communication unit stores the forwarding rule itself, when the communication unit receives the service message forwarded by the main control unit:

[0127] When the contact unit determines that there is a forwarding rule corresponding to the service message according to the forwarding rule stored in the contact unit, forwarding the service message over the air interface on the contact network;

[0128] When the contact unit determines that there is no forwarding rule corresponding to the service message according to the forwarding rule stored in the contact unit, the contact unit discards the service message;

[0129] a2) If the communication unit does not store the forwarding rule, when the communication unit receives the service message forwarded by the main control unit:

[0130] Forwarding the service message directly to the target contact unit that has been queried and determined by the main control unit;

[0131] b) The contact unit can also forward the air interface service message upon receiving the air interface service message, including:

[0132] b1) If the contact unit stores the forwarding rule itself, when the contact unit receives the air interface service message:

[0133] When the contact unit determines, based on the forwarding rule stored in itself, that there is a forwarding rule corresponding to the air interface service message, and determines, based on the destination address of the air interface service message, that the destination address of the air interface service message is a peripheral device or an external network of the self-organizing network node where the contact unit is located, the contact unit is capable of forwarding the air interface service message to the main control unit, so that the main control unit forwards the air interface service message to the peripheral device or external network of the self-organizing network node where the contact unit is located;

[0134] When the contact unit determines that there is a forwarding rule corresponding to the air interface service message according to the forwarding rule stored in the contact unit, and determines that the air interface service message is a relay message according to the destination address of the air interface service message, the contact unit can perform air interface forwarding on the contact network;

[0135] When the contact unit determines that there is no forwarding rule corresponding to the air interface service message according to the forwarding rule stored in the contact unit, the contact unit forwards the air interface service message to the main control unit so that the main control unit performs a forwarding query;

[0136] b2) If the contact unit does not store the forwarding rule, then upon receiving the air interface service message:

[0137] The air interface service message is forwarded to the main control unit so that the main control unit performs a forwarding query.

[0138] It should be noted that, in the embodiment of the present invention, when the liaison unit receives the service message forwarded by the main control unit, the service message received by the liaison unit from the main control unit may specifically include a peripheral service message and an air interface service message.

[0139] More specifically, c) the service unit can perform forwarding processing after receiving the service message forwarded by the main control unit, including:

[0140] c1) If the service unit stores the forwarding rule itself, when the service unit receives the service message forwarded by the main control unit:

[0141] When the service unit determines that there is a forwarding rule corresponding to the service message according to the forwarding rule stored in the service unit, forwarding the service message over the service network through an air interface;

[0142] When the service unit determines that there is no forwarding rule corresponding to the service message according to the forwarding rule stored in the service unit, the service message is discarded;

[0143] c2) If the service unit does not store the forwarding rule itself, then when the service unit receives the service message forwarded by the main control unit:

[0144] Forwarding the service message directly to the target service unit that has been queried and determined by the main control unit;

[0145] d) The service unit can also forward the air interface service message upon receiving the air interface service message, including:

[0146] d1) If the service unit itself stores the forwarding rule, then when the service unit receives the air interface service message:

[0147] When the business unit determines, based on the forwarding rule stored in itself, that there is a forwarding rule corresponding to the air interface business message, and determines, based on the destination address of the air interface business message, that the destination address of the air interface business message is a peripheral device or an external network of the self-organizing network node where the business unit is located, the business unit is able to forward the air interface business message to the main control unit, so that the main control unit forwards the air interface business message to the peripheral device or external network of the self-organizing network node where the business unit is located;

[0148] When the service unit determines, based on the forwarding rule stored in itself, that there is a forwarding rule corresponding to the air interface service message, and determines, based on the destination address of the air interface service message, that the air interface service message is a relay message, the service unit can forward the air interface service message and the next hop address to the target service unit determined by the forwarding rule according to the forwarding rule stored in itself, so that the target service unit performs air interface forwarding on the service network;

[0149] When the service unit determines that there is no forwarding rule corresponding to the air interface service message according to the forwarding rule stored in the service unit, the service unit forwards the air interface service message to the main control unit so that the main control unit performs a forwarding query;

[0150] d2) If the service unit itself does not store the forwarding rule, when the service unit receives the air interface service message:

[0151] The air interface service message is forwarded to the main control unit so that the main control unit performs a forwarding query.

[0152] It should be noted that, in the embodiment of the present invention, when the service unit receives the service message forwarded by the main control unit, the service message received by the service unit from the main control unit may specifically include a peripheral service message and an air interface service message.

[0153] like Figure 4 The figure shows the forwarding path of the node for data services. When the service network air interface of the node is not connected or there is no service unit, only guaranteed connection is supported. The forwarding path is as follows Figure 4As shown by the middle blue line: When the main control unit receives a service message from a peripheral device or external network, it queries its own forwarding rules based on the destination address of the service message. If no corresponding rule exists, the message is directly discarded. Otherwise, the service message and the forwarded next-hop address are sent to the contact unit, which forwards the message over the air interface on the contact network. After receiving a message from the contact network, the contact unit determines based on the destination address. If the destination address of the message is its own peripheral device or external network, the contact unit forwards the message to the main control unit, which then forwards the message to the peripheral device or external network. If the contact unit determines that the message is a relay message based on its own forwarding rules, the message is directly forwarded over the contact network over the air interface. If the contact unit does not find a corresponding rule in its own forwarding rules, the message is submitted to the main control unit for further forwarding query. If the main control unit has a corresponding forwarding rule, the main control unit sends the message and the forwarded next-hop address to the contact unit, which forwards the message over the air interface on the contact network. Otherwise, the main control unit discards the message.

[0154] When at least one service unit is operating normally and the service network is connected normally, the service forwarding path is as follows: Figure 4 As shown by the red line in the middle: when the main control unit receives a service message from a peripheral device or an external network, it queries its own forwarding rules according to the destination address of the service message. If there is no corresponding rule, the message is directly discarded; otherwise, the service message and the next hop address forwarded are sent to the service unit determined by the forwarding rule, and the service unit forwards the message over the air interface on the service network; after receiving the message from the service network, the service unit judges according to the destination address. If the destination address of the service message is its own peripheral device or external network, the service unit forwards the service message to the main control unit, and the main control unit forwards the message to the peripheral device or external network; if the service unit stores the message in its own The main control unit determines that the service message is a relay message based on its own forwarding rules, and sends the service message and the next hop address to the target service unit determined by the forwarding rules according to the forwarding rules, and the service unit forwards the service message over the air interface on the service network; if the service unit does not find the rule corresponding to the service message through the forwarding rules stored in its own forwarding rules, the service message is submitted to the main control unit for further forwarding query. If the main control unit has a corresponding forwarding rule, the main control unit sends the service message and the forwarded next hop address to the service unit determined by the forwarding rule, and the service unit forwards the service message over the air interface on the service network; otherwise, the main control unit discards the service message.

[0155] In an embodiment of the present invention, the deployment method of the main control unit, the contact unit, and the service unit in each self-organizing network node includes at least:

[0156] Centralized deployment mode: the main control unit, contact unit and business unit are all centrally deployed in the same device;

[0157] Separate deployment mode: the main control unit, contact unit and business unit are separately deployed in different devices;

[0158] In a hybrid deployment mode, at least the business unit and the main control unit are separately deployed in different devices.

[0159] It should be understood that if Figure 5a As shown, in this embodiment, the self-organizing network node device can only deploy the main control unit and the communication unit, and not deploy the service unit. When some self-organizing network nodes in the self-organizing network are deployed in this deployment mode, the coverage of the communication network can be expanded.

[0160] like Figure 5b As shown, in this embodiment, the main control unit, the contact unit and the service unit in the self-organizing network node device are centrally deployed together, for example, centrally deployed in the same structure.

[0161] like Figures 5c to 5e As shown, the main control unit, contact unit and business unit in the self-organizing network node device can be freely combined and deployed separately. Figure 5c As shown, the main control unit, contact unit and business unit are deployed separately; Figure 5d As shown, the main control unit and the communication unit are centrally deployed, and the business units are remotely deployed; Figure 5e As shown, the main control unit, the liaison unit and some business units are centrally deployed, and other business units are separately deployed.

[0162] It should be understood that the self-organizing network in the embodiment of the present invention is logically divided into: 1 main control unit + 1 communication unit + N business units in a single self-organizing network device; in terms of deployment, the main control unit, communication unit and business unit can be centrally deployed in the same device, or they can be separately deployed in different devices.

[0163] The following describes in detail the implementation method of capacity expansion of the self-organizing network according to the embodiment of the present invention.

[0164] (1) The service network is a single-channel self-organizing network. In this embodiment, when the service network is a single-channel self-organizing network and encounters a network transmission bottleneck, the path of the transmission bottleneck is first determined, and then the service unit is superimposed on the node group associated with the path to expand network capacity to alleviate the transmission bottleneck and achieve an improvement in network transmission capacity.

[0165] like Figure 6a As shown in the network, each node in the self-organizing network deploys a service unit, and each self-organizing network node is composed of Figure 6bAs shown in the figure, each organization network node business unit deploys a single-channel self-organizing network waveform. Node 2 and node 3 are located on the critical path of the network and form a transmission bottleneck. In order to expand the network traffic of the self-organizing network and break the transmission bottleneck on the critical path, a business unit can be added to node 2 and node 3 to build a new business network independent of business unit 1, expand the transmission capacity between node 2 and node 3, and thus enhance the business carrying capacity of the entire self-organizing network. The expanded self-organizing network is shown in the figure. Figure 6c shown.

[0166] (2) The service network is a multi-channel self-organizing network. In this embodiment, when the service network is a multi-channel self-organizing network, the effect of expanding node transmission bottlenecks can be achieved by increasing the number of service units of a single node rather than a node group. For example, increasing the number of service units at a node in the network can break the transmission bottleneck caused by factors such as the convergence of services at the node, thereby improving network transmission capacity.

[0167] like Figure 7a In the network topology shown, node 0 is located in the command center and needs to collect video information from the entire network. Each node includes one service unit, and a multi-channel self-organizing network is deployed. Due to the service convergence characteristics, the traffic demand of nodes 0 and 5 is high. Therefore, nodes 0 and 5 are expanded with asymmetric service units, as shown in the following example: Figure 7b As shown, node 0 is superimposed with 2 service units (a total of 3 service units), node 5 is superimposed with 1 service unit (a total of 2 service units), and other nodes maintain 1 service unit. This network cooperates with the multi-channel self-organizing network waveform. The air interface of node 0 can communicate with nodes 1, 2, and 3 at the same time, and the air interface of node 5 can communicate with two nodes among nodes 3, 4, 6, 8, and 9 at the same time. Therefore, the transmission bottleneck of these two nodes is alleviated, and the network performance will be greatly improved.

[0168] In the self-organizing network in the embodiment of the present invention, the network node device capabilities under the self-organizing network architecture do not need to be equal, and the network can be deployed symmetrically or asymmetrically. Specifically, the line-of-sight single-point device can be expanded quickly and flexibly according to the actual needs of the network, thereby eliminating the transmission bottleneck of specific nodes in the self-organizing network. The business units in the network can be deployed 1 to 1, 1 to many, or many to many as needed. Compared with conventional self-organizing networks, this network architecture is free, open, flexible, and easy to expand, combining the reliability and flexibility of self-organizing networks with the high efficiency of cellular networks. Therefore, in the embodiment of the present invention, the data transmission and reception capabilities of specific nodes in the network are effectively increased by the aggregated use of different business units.

[0169] It will be understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, and the present invention is not limited thereto. Those skilled in the art will appreciate that various modifications and improvements can be made without departing from the spirit and substance of the present invention, and such modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A self-organizing network, characterized in that include: A plurality of self-organizing network nodes, wherein the self-organizing network nodes are communicatively connected to each other via a communication network; Each self-organizing network node includes at least one main control unit, one liaison unit and N service units, where N is a natural number greater than or equal to 0. The liaison unit and the service unit are both communicatively connected to the main control unit, and each self-organizing network node is communicatively connected to its respective peripheral device through its respective main control unit. The main control unit is used to determine a forwarding strategy based on network topology information, business unit working status information, and contact unit working status information, and is used to forward the received peripheral service message to the corresponding contact unit and / or business unit according to the forwarding strategy, and is used to forward the received air interface service message of the contact unit or business unit to the peripheral or contact unit and / or business unit according to the forwarding strategy; The communication unit is used to form the communication network through the communication channel of the self-organizing network node where the communication unit is located and the communication channels of the communication units of other self-organizing network nodes in the self-organizing network, and is used to carry service messages between the self-organizing network nodes and forward air interface service messages in the communication network according to the forwarding strategy of the main control unit, wherein the air interface path where the communication unit in each self-organizing network node is located forms the communication channel; The service unit is used to build a service network through the service channel of the self-organizing network node where it is located and the service channels of the service units of other self-organizing network nodes in the self-organizing network, and to forward air interface service messages in the service network according to the forwarding strategy of the main control unit; The plurality of service units can be aggregated in a synchronous manner or an asynchronous manner.

2. The self-organizing network according to claim 1, characterized in that The main control unit is further configured to collect capability information of different service units of the self-organizing network node where the main control unit is located and form a service unit capability set, and diffuse the service unit capability set in one-hop neighbor self-organizing network nodes through the communication network.

3. The self-organizing network according to claim 2, characterized in that The main control unit is also used to perform service network neighbor detection triggering judgment between adjacent nodes with the service unit capability set of its own self-organizing network node after receiving the service unit capability set in the one-hop neighbor self-organizing network node to achieve service network topology maintenance.

4. The self-organizing network according to claim 3, characterized in that The main control unit is further configured to, upon receiving a service unit capability set from a one-hop neighbor self-organizing network node, perform service network neighbor detection triggering judgment between adjacent nodes together with the service unit capability set of the self-organizing network node where the main control unit is located, including: Compare the service unit capability in the service unit capability set of each one-hop neighbor self-organizing network node with the service unit capability in the service unit capability set of the self-organizing network node; If at least one business unit capability in the business unit capability set of the self-organizing network node is the same as the business unit capability in the business unit capability set of the one-hop neighboring self-organizing network node, then the business unit corresponding to the business unit capability in the business unit capability set of the self-organizing network node is marked as a unit that requires business network neighbor detection, wherein the business unit capability includes at least the operating frequency band, operating mode, channel bandwidth and waveform modulation; A service network neighbor detection indication is issued to each service unit marked as requiring service network neighbor detection. The service network neighbor detection indication is used to notify the service unit to perform service network neighbor detection through the air interface where it is located, wherein the service network neighbor detection indication includes at least the service unit ID, the operating frequency band of the service network, and the resources required for detection.

5. The self-organizing network according to any one of claims 1 to 4, characterized in that The main control unit is used to receive the service network neighbor information reported by the service unit, and to spread the service network neighbor information through the communication network, and to calculate the service network topology information according to the service network neighbor information of different self-organizing network nodes.

6. The self-organizing network according to any one of claims 1 to 4, characterized in that The main control unit is used to receive the business unit working status information of the self-organizing network node where its own business unit is located reported by its own business unit, and to spread the business unit working status information through the communication network, and to update the locally recorded business unit status and the locally recorded business unit status of other self-organizing network nodes according to the business unit working status information.

7. The self-organizing network according to any one of claims 1 to 4, characterized in that The main control unit is used to forward the received peripheral service message to the corresponding contact unit and / or business unit according to the forwarding strategy, and is used to forward the received air interface service message of the contact unit or business unit to the peripheral or contact unit and / or business unit according to the forwarding strategy, including: When it is determined that the current service network is disconnected and / or the number of service units is 0, query whether there is a corresponding forwarding rule based on the destination address of the received service message, and if it is determined that there is a corresponding forwarding rule, send the service message and the forwarded next hop address to the contact unit for forwarding processing or send the service message to the external device, and if it is determined that there is no corresponding forwarding rule, discard the service message; When it is determined that the current business network is normally connected and the number of business units is at least 1, it queries whether there is a corresponding forwarding rule based on the destination address of the received business message, and when it is determined that there is a corresponding forwarding rule, it sends the business message and the next hop address to the business unit or contact unit determined by the forwarding rule for forwarding processing or sends it to the peripheral device, and discards the business message when it is determined that there is no corresponding forwarding rule.

8. The self-organizing network according to claim 7, characterized in that a) After receiving the service message forwarded by the main control unit, the communication unit can perform forwarding processing, including: a1) If the communication unit stores the forwarding rule, when the communication unit receives the service message forwarded by the main control unit: When the contact unit determines that there is a forwarding rule corresponding to the service message according to the forwarding rule stored in the contact unit, forwarding the service message over the air interface on the contact network; When the contact unit determines that there is no forwarding rule corresponding to the service message according to the forwarding rule stored in the contact unit, the contact unit discards the service message; a2) If the communication unit does not store the forwarding rule, when the communication unit receives the service message forwarded by the main control unit: Forwarding the service message directly to the target contact unit that has been queried and determined by the main control unit; b) The communication unit can also forward the air interface service message upon receiving the air interface service message, including: b1) If the contact unit stores the forwarding rule itself, when the contact unit receives the air interface service message: When the contact unit determines, based on the forwarding rule stored in itself, that there is a forwarding rule corresponding to the air interface service message, and determines, based on the destination address of the air interface service message, that the destination address of the air interface service message is a peripheral device or an external network of the self-organizing network node where the contact unit is located, the contact unit is capable of forwarding the air interface service message to the main control unit, so that the main control unit forwards the air interface service message to the peripheral device or external network of the self-organizing network node where the contact unit is located; When the contact unit determines that there is a forwarding rule corresponding to the air interface service message according to the forwarding rule stored in the contact unit, and determines that the air interface service message is a relay message according to the destination address of the air interface service message, the contact unit can perform air interface forwarding on the contact network; When the contact unit determines that there is no forwarding rule corresponding to the air interface service message according to the forwarding rule stored in the contact unit, the contact unit forwards the air interface service message to the main control unit so that the main control unit performs a forwarding query; b2) If the contact unit does not store the forwarding rule, then upon receiving the air interface service message: The air interface service message is forwarded to the main control unit so that the main control unit performs a forwarding query.

9. The self-organizing network according to claim 7, characterized in that c) After receiving the service message forwarded by the main control unit, the service unit can perform forwarding processing, including: c1) If the service unit stores the forwarding rule itself, when the service unit receives the service message forwarded by the main control unit: When the service unit determines that there is a forwarding rule corresponding to the service message according to the forwarding rule stored in the service unit, forwarding the service message over the service network through an air interface; When the service unit determines that there is no forwarding rule corresponding to the service message according to the forwarding rule stored in the service unit, the service message is discarded; c2) If the service unit does not store the forwarding rule, upon receiving the service message forwarded by the main control unit: Forwarding the service message directly to the target service unit that has been queried and determined by the main control unit; d) The service unit is further capable of forwarding air interface service messages upon receiving the air interface service messages, including: d1) If the service unit stores the forwarding rule itself, then when the service unit receives the air interface service message: When the business unit determines, based on the forwarding rule stored in itself, that there is a forwarding rule corresponding to the air interface business message, and determines, based on the destination address of the air interface business message, that the destination address of the air interface business message is a peripheral device or an external network of the self-organizing network node where the business unit is located, the business unit is able to forward the air interface business message to the main control unit, so that the main control unit forwards the air interface business message to the peripheral device or external network of the self-organizing network node where the business unit is located; When the service unit determines, based on the forwarding rule stored in itself, that there is a forwarding rule corresponding to the air interface service message, and determines, based on the destination address of the air interface service message, that the air interface service message is a relay message, the service unit can forward the air interface service message and the next hop address to the target service unit determined by the forwarding rule according to the forwarding rule stored in itself, so that the target service unit performs air interface forwarding on the service network; When the service unit determines that there is no forwarding rule corresponding to the air interface service message according to the forwarding rule stored in the service unit, the service unit forwards the air interface service message to the main control unit so that the main control unit performs a forwarding query; d2) If the service unit does not store the forwarding rule, when the service unit receives the air interface service message: The air interface service message is forwarded to the main control unit so that the main control unit performs a forwarding query.

10. The self-organizing network according to claim 1, characterized in that The deployment method of the main control unit, contact unit and business unit in each self-organizing network node includes at least: Centralized deployment mode: the main control unit, contact unit and business unit are all centrally deployed in the same device; Separate deployment mode: the main control unit, contact unit and business unit are separately deployed in different devices; In a hybrid deployment mode, at least the business unit and the main control unit are separately deployed in different devices.

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