WO2017011947A1

WO2017011947A1 - Communication method, apparatus and system

Info

Publication number: WO2017011947A1
Application number: PCT/CN2015/084383
Authority: WO
Inventors: 杜宗鹏; 蒋胜; 刘冰
Original assignee: 华为技术有限公司
Priority date: 2015-07-17
Filing date: 2015-07-17
Publication date: 2017-01-26
Also published as: CN107113295A; CN107113295B

Abstract

Embodiments of the present invention provide a communication method, apparatus and system. The communication method comprises: a registration node receives an adjacency discovery (AD) message sent by a network node, the AD message carrying a device identifier of the network node and an IPv4 address of the network node, and the IPv4 address being automatically generated by the network node; the registration node acquires indication information of availability of the IPv4 address; the registration node determines whether the network node is a valid node according to the device identifier; and when the registration node determines that the network node is a valid node, the registration node sends a domain certificate and the indication information to the network node. Accordingly, an IPv4-based autonomic control plane (ACP) can be established, the compatibility of a network can be improved, and obstacles in network deployment can be reduced.

Description

Communication method, device and system

Technical field

The present invention relates to the field of information technology and, more particularly, to a communication method, apparatus and system.

Background technique

The self-organizing network supports self-management, which can reduce the intervention of administrators and improve the automation of the network. The self-organizing network can alleviate the work of network management, facilitate the deployment of new services, reduce the probability of configuration errors, and reduce the operating costs of the network.

An important aspect of self-organizing networks is that devices can be “plug and play” and support bootstrapping and self-configuration. One of the key technologies is Autonomic Control Plane (ACP), the characteristics of ACP. Yes: no need for administrator participation, automatic generation, automatic growth, end-to-end connection to establish a complete "zero-touch"; and ACP is not affected by the administrator's misconfiguration; can achieve secure interaction of information.

The establishment of the ACP in the prior art solution requires the device to have self-organizing characteristics and supports Internet Protocol Version 6, which is referred to as "IPv6", but most devices in the current network do not support IPv6, thereby causing the network. The compatibility is poor and there are many deployment obstacles.

Summary of the invention

The present invention provides a communication method, apparatus and system capable of establishing an IPv4-based ad hoc control plane ACP, thereby improving network compatibility and reducing network deployment obstacles.

In a first aspect, a communication method in a self-organizing network is provided, the communication method comprising: receiving, by a registration node, a neighbor discovery AD message sent by a network node, the AD message carrying a device identifier of the network node and an IPv4 address of the network node The IPv4 address is automatically generated by the network node; the registration node obtains indication information about the availability of the IPv4 address; the registration node determines, according to the device identifier, whether the network node is a legal node; the registration node determines that the network node is When the node is a legitimate node, the domain certificate and the indication information are sent to the network node.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the IPv4 address is automatically generated by the network node, including: each bit in the IPv4 address is determined by the network node according to the device identifier Performing a hash operation; or, each bit in the IPv4 address is performed by the network node according to the medium access control MAC address of the interface configured on the network node. Generated by the Greek operation; or, each bit in the IPv4 address is randomly generated by the network node.

With reference to the first aspect, in a second possible implementation manner of the first aspect, the IPv4 address is automatically generated by the network node, including: the first M bits of the IPv4 address are determined by the network node according to the The domain ID of the organization domain is generated by hash operation. The last 32-M bits of the IPv4 address are generated by the network node according to the device identifier or the MAC address of the interface configured on the network node. A positive integer; or, the first N bits of the IPv4 address are generated by the network node hashing according to the domain ID of the associated self-organizing domain, and the last 32-N bits of the IPv4 address are randomly generated by the network node. , N is a positive integer.

With reference to the first aspect, in a third possible implementation manner of the first aspect, the IPv4 address is automatically generated by the network node, including: the first M bits of the IPv4 address are before the network node according to the dedicated IPv4 address The last 32-M bits of the IPv4 address generated by the M-bit are generated by the network node according to the device identifier or the MAC address of the interface configured on the network node, where M is a positive integer; or, the IPv4 address The first N bits are generated by the network node according to the first N bits of the private IPv4 address, and the last 32-N bits of the IPv4 address are randomly generated by the network node, and N is a positive integer.

With reference to the first aspect, in a fourth possible implementation manner of the first aspect, the IPv4 address is automatically generated by the network node, including: the first M bits of the IPv4 address are the front M of the network node according to the dedicated IPv4 address. The bit generated, the first L bit in the last 32-M bits of the IPv4 address is generated by the network node hashing according to the domain ID of the associated self-organizing domain, and the last 32-M bits of the IPv4 address are The 32-ML bit is generated by the network node performing a hash operation according to the device identifier or the MAC address of the interface configured on the network node, where M and L are positive integers; or, the first N bits of the IPv4 address are the network node. According to the first N bits of the dedicated IPv4 address, the first L bits in the last 32-N bits of the IPv4 address are generated by the network node hashing according to the domain ID of the associated self-organizing domain, and the IPv4 of the network node is generated. The last 32-NL bits of the last 32-N bits of the address are randomly generated by the network node, and N, L are positive integers.

With reference to the first aspect, or any possible implementation of the first to fourth possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, the registration node acquires the IPv4 address The indication information of availability includes: the registration node determines whether the IPv4 address is available; and the registration node determines the indication information according to a result of determining whether the IPv4 is available.

With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the registration node determines the indication information according to a result of determining whether the IPv4 is available, The method includes: when the registration node determines that the IPv4 address is available, determining that the indication information indicates that an IPv4 address of the network node is available; or determining, when the registration node determines that the IPv4 address is unavailable, determining that the indication information includes an IPv4 address increment information or Available IPv4 address.

With reference to the first aspect, or any possible implementation of the first to fourth possible implementation manners of the first aspect, in a seventh possible implementation manner of the first aspect, the registration node acquires the IPv4 address The indication information of the availability includes: the registration node sends the IPv4 address to the conflict detection server; the registration node receives the indication information sent by the conflict detection server, the indication information indicates that the IPv4 address is available, or the indication information includes an IPv4 address Incremental information or an available IPv4 address.

In conjunction with the seventh possible implementation of the first aspect, in an eighth possible implementation manner of the first aspect, the registration node sends the IPv4 address to the conflict detection server, including: the registration node sends the conflict detection server The IPv4 address and the device identifier.

With reference to the first aspect, or any one of the first to the eighth possible implementation manners of the first aspect, in a ninth possible implementation manner of the first aspect, the device identifier of the network node is The unique device identifier UDI of the network node;

The determining, by the registration node, whether the network node is a legal node according to the device identifier, includes: determining, by the registration node, that the network node is a legal node when determining that the UDI of the network node is in the UDI list.

With reference to the first aspect, or any one of the first to the eighth possible implementation manners of the first aspect, in a tenth possible implementation manner of the first aspect, the device identifier of the network node is The unique unique device identifier SUDI of the network node;

The registration node determines whether the network node is a legal node according to the device identifier, and includes: the registration node verifies a device digital certificate corresponding to the SUDI sent by the network node; and when the registration node verifies that the device digital certificate is successful, The network node is determined to be a legal node according to the verification result of the verification server.

With reference to the first aspect, or any one of the first to the tenth possible implementation manners of the first aspect, in the eleventh possible implementation manner of the first aspect, the IPv4 address is self-organized The IPv4 address of the control plane ACP.

In a second aspect, a communication method in an ad hoc network is provided, the communication method comprising: the conflict detection server receiving an IPv4 address sent by the registration node; the conflict detection server determining whether the IPv4 address is available.

In conjunction with the second aspect, in a first possible implementation of the second aspect, the IPv4 address is automatically generated by a network node.

With reference to the first possible implementation of the second aspect, in a second possible implementation manner of the second aspect, the conflict detection server receives the IPv4 address sent by the registration node, and the conflict detection server sends the registration node to send The IPv4 address and the device identifier of the network node.

In conjunction with the first or second possible implementation of the second aspect, in a third possible implementation of the second aspect, the IPv4 address is automatically generated by the network node, including: each of the IPv4 addresses One bit is generated by the network node performing a hash operation according to the device identifier; or each bit in the IPv4 address is hashed by the network node according to a medium access control MAC address of an interface configured on the network node. The operation is generated; or, each bit in the IPv4 address is randomly generated by the network node.

In conjunction with the first or second possible implementation of the second aspect, in a fourth possible implementation of the second aspect, the IPv4 address is automatically generated by the network node, including: the front of the IPv4 address The M bit is generated by the network node hashing according to the domain identifier ID of the associated self-organizing domain, and the last 32-M bits of the IPv4 address are determined by the network node according to the device identifier or the interface configured on the network node. The MAC address is generated by hash operation, and M is a positive integer; or, the first N bits of the IPv4 address are generated by the network node performing hash operation according to the domain ID of the associated self-organizing domain, and the IPv4 address is followed by The 32-N bits are randomly generated by the network node, and N is a positive integer.

In conjunction with the first or second possible implementation of the second aspect, in a fifth possible implementation of the second aspect, the IPv4 address is automatically generated by the network node, including: the front of the IPv4 address The M bit is generated by the network node according to the first M bits of the dedicated IPv4 address, and the last 32-M bits of the IPv4 address are generated by the network node according to the device identifier or the MAC address of the interface configured on the network node. M is a positive integer; or, the first N bits of the IPv4 address are generated by the network node according to the first N bits of the private IPv4 address, and the last 32-N bits of the IPv4 address are randomly generated by the network node, where N is A positive integer.

In conjunction with the first or second possible implementation of the second aspect, in a sixth possible implementation of the second aspect, the IPv4 address is automatically generated by the network node, including: the front of the IPv4 address The M bit is generated by the network node according to the first M bits of the private IPv4 address, and the first L bits of the last 32-M bits of the IPv4 address are generated by the network node hashing according to the domain ID of the associated self-organizing domain. The last 32-ML bits in the last 32-M bits of the IPv4 address are the network section. The point is generated according to the device identifier or the MAC address of the interface configured on the network node, and M, L is a positive integer; or, the first N bits of the IPv4 address are the first N of the network node according to the private IPv4 address. The first L bit in the last 32-N bits of the IPv4 address is generated by the network node according to the domain ID of the associated self-organizing domain, and the last 32-N bits of the IPv4 address of the network node are generated. The last 32-NL bits in the middle are randomly generated by the network node, and N and L are positive integers.

With reference to the second aspect, or any one of the first to the sixth possible implementation manners of the second aspect, in a seventh possible implementation manner of the second aspect, the communication method further includes: The conflict detection server sends a first conflict detection reply message to the registration node, where the first conflict detection reply message is used to indicate the availability of the IPv4 address;

When the conflict detection server determines that the IPv4 address is available, the first conflict detection reply message indicates that the IPv4 address is available; or, when the conflict detection server determines that the IPv4 address is unavailable, the first conflict detection information includes an IPv4 address. Incremental information or an available IPv4 address.

With reference to any possible implementation of the first to sixth possible implementations of the second aspect, in an eighth possible implementation manner of the second aspect, the communication method further includes: the conflict detection server The network node sends a second conflict detection reply message, where the second conflict detection reply message is used to indicate the availability of the IPv4;

Wherein, when the conflict detection server determines that the IPv4 address is available, the second conflict detection reply message indicates that the IPv4 address is available; or, when the conflict detection server determines that the IPv4 address is unavailable, the second conflict detection information includes an IPv4 address. Incremental information or an available IPv4 address.

In a third aspect, a communication method in a self-organizing network is provided, the communication method includes: the network node automatically generates an IPv4 address; the network node sends a neighbor discovery AD message to the registration node, where the AD message carries the device identifier of the network node And the IPv4 address; the network node receives the domain certificate and the indication information of the availability of the IPv4 address, the domain certificate is sent by the registration node; the network node establishes a self-organizing control with the registration node according to the domain certificate and the indication information Plane ACP.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the network node automatically generates an IPv4 address, including: the network node performs a hash operation according to the device identifier to generate each bit in the IPv4 address; Or, the network node performs a hash operation according to the media access control MAC address of the configured interface to generate each bit in the IPv4 address; or the network node randomly generates each bit in the IPv4 address.

With reference to the third aspect, in a second possible implementation manner of the third aspect, the network node automatically generates the IPv4 address, including: the network node performs hash operation according to the domain identifier ID of the associated self-organizing domain to generate the IPv4 The first M bits of the address are hashed according to the device ID or the MAC address of the configured interface to generate the last 32-M bits of the IPv4 address, where M is a positive integer; or, the network node is based on the domain of the self-organizing domain to which it belongs. The ID performs a hash operation to generate the first N bits of the IPv4 address, and randomly generates the last 32-N bits of the IPv4 address, where N is a positive integer.

In conjunction with the third aspect, in a third possible implementation manner of the third aspect, the network node automatically generates the IPv4 address, including: the network node generates a first M bit of the IPv4 address according to a first M bits of the dedicated IPv4 address, Performing a hash operation according to the MAC address of the device identifier or the configured interface to generate the last 32-M bits of the IPv4 address, where M is a positive integer; or, the network node generates the IPv4 address according to the first N bits of the dedicated IPv4 address. N bits, the last 32-N bits of the IPv4 address are randomly generated, and N is a positive integer.

With reference to the third aspect, in a fourth possible implementation manner of the third aspect, the network node automatically generates the IPv4 address, including: the network node generating a first M bit of the IPv4 address according to a first M bits of the dedicated IPv4 address, The hash operation is performed according to the domain ID of the associated self-organizing domain to generate the first L-bit in the last 32-M bits of the IPv4 address, and the hash operation is performed according to the device identifier or the MAC address of the configured interface to generate the IPv4 address. The last 32-ML bits of the 32-M bits, M, L are positive integers; or, the network node generates the first N bits of the IPv4 address according to the first N bits of the private IPv4 address, according to the domain ID of the associated self-organizing domain A hash operation is performed to generate the first L bits of the last 32-N bits of the IPv4 address, and the last 32-NL bits of the last 32-N bits of the IPv4 address are randomly generated, and N and L are positive integers.

With reference to the third aspect, or any possible implementation manner of the first to fourth possible implementation manners of the third aspect, in a fifth possible implementation manner of the third aspect, the indication information indicates the IPv4 address Available; or, the indication information includes IPv4 address delta information or an available IPv4 address.

With reference to the third aspect, or any possible implementation manner of the first to fifth possible implementation manners of the third aspect, in a sixth possible implementation manner of the third aspect, the IPv4 availability indication information is The registration node sends; or, the IPv4 availability indication information is sent by the conflict detection server.

With reference to the third aspect, or any one of the first to the sixth possible implementation manners of the third aspect, in a seventh possible implementation manner of the third aspect, the device identifier is the network node The unique device identifies UDI, which is configured with a UDI list.

With reference to the third aspect, or any possible implementation manner of the first to the sixth possible implementation manners of the third aspect, in the eighth possible implementation manner of the third aspect, the device identifier is the network node The secure unique device identifies SUDI, which is accessible to the authentication server in the Internet.

With reference to the third aspect, or any possible implementation manner of the first to the eighth possible implementation manners of the third aspect, in the ninth possible implementation manner of the third aspect, the IPv4 address is the IPv4 of the ACP. address.

A fourth aspect provides a communication device in a self-organizing network, the communication device comprising: a receiving module, configured to receive a neighbor discovery AD message sent by a network node, where the AD message carries a device identifier of the network node and the network node The IPv4 address, the IPv4 address is automatically generated by the network node; the obtaining module is configured to obtain the indication information of the availability of the IPv4 address, and the determining module is configured to determine, according to the device identifier, whether the network node is a legal node; And, when the determining module determines that the network node is a legal node, sending a domain certificate and the indication information to the network node.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the IPv4 address is automatically generated by the network node, including: each bit in the IPv4 address is determined by the network node according to the device identifier Performing a hash operation; or, each bit in the IPv4 address is generated by the network node performing a hash operation according to a medium access control MAC address of an interface configured on the network node; or, in the IPv4 address Each bit is randomly generated by the network node.

With reference to the fourth aspect, in a second possible implementation manner of the fourth aspect, the IPv4 address is automatically generated by the network node, including: the first M bits of the IPv4 address are organized by the network node according to the self-organization The domain ID of the domain is generated by hash operation. The last 32-M bits of the IPv4 address are generated by the network node according to the device identifier or the MAC address of the interface configured on the network node, and M is a positive integer; or, the first N bits of the IPv4 address are generated by the network node hashing according to the domain ID of the associated self-organizing domain, and the last 32-N bits of the IPv4 address are randomly generated by the network node. , N is a positive integer.

With reference to the fourth aspect, in a third possible implementation manner of the fourth aspect, the IPv4 address is automatically generated by the network node, including: the first M bits of the IPv4 address are before the network node according to the dedicated IPv4 address The last 32-M bits of the IPv4 address generated by the M-bit are generated by the network node according to the device identifier or the MAC address of the interface configured on the network node, where M is a positive integer; or, the IPv4 address The first N bits are the network node according to the private IPv4 The last 32 bits of the address are generated. The last 32-N bits of the IPv4 address are randomly generated by the network node, and N is a positive integer.

With reference to the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the IPv4 address is automatically generated by the network node, including: the first M bits of the IPv4 address are before the network node according to the dedicated IPv4 address The first L bits in the last 32-M bits of the IPv4 address are generated by the network node according to the domain ID of the associated self-organizing domain, and the last 32-M bits of the IPv4 address are generated. The last 32-ML bit is generated by the network node according to the device identifier or the MAC address of the interface configured on the network node, and M, L are positive integers; or, the first N bits of the IPv4 address are the network. The node is generated according to the first N bits of the private IPv4 address, and the first L bits of the last 32-N bits of the IPv4 address are generated by the network node hashing according to the domain ID of the associated self-organizing domain, and the network node The last 32-NL bits of the last 32-N bits of the IPv4 address are randomly generated by the network node, and N, L are positive integers.

With reference to the fourth aspect, or any possible implementation manner of the first to fourth possible implementation manners of the fourth aspect, in the fifth possible implementation manner of the fourth aspect, the acquiring module is specifically configured to: Determining whether the IPv4 address is available; determining the indication information according to a result of determining whether the IPv4 is available.

With reference to the fifth possible implementation manner of the foregoing aspect, in a sixth possible implementation manner of the fourth aspect, the acquiring module is configured to: when determining that the IPv4 address is available, determining that the indication information indicates the network node The IPv4 address is available; or, when it is determined that the IPv4 address is unavailable, it is determined that the indication information includes IPv4 address increment information or an available IPv4 address.

With reference to the fourth aspect, or any one of the first to the fourth possible implementation manners of the fourth aspect, in the seventh possible implementation manner of the fourth aspect, the sending module is further configured to: Sending the IPv4 address to the conflict detection server;

The obtaining module is specifically configured to: receive the indication information sent by the conflict detection server, where the indication information indicates that the IPv4 address is available, or the indication information includes an IPv4 address increment information or an available IPv4 address;

In conjunction with the seventh possible implementation of the fourth aspect, in an eighth possible implementation manner of the fourth aspect, the sending module is configured to: send the IPv4 address and the device identifier to the conflict detection server.

With reference to the fourth aspect, or any possible implementation manner of the first to eighth possible implementation manners of the fourth aspect, in a ninth possible implementation manner of the fourth aspect, the device of the network node A unique device identifier UDI identified as the network node;

The determining module is specifically configured to: when determining that the UDI of the network node is in the UDI list, determine that the network node is a legal node.

With reference to the fourth aspect, or any one of the first to the eighth possible implementation manners of the fourth aspect, in a tenth possible implementation manner of the fourth aspect, the device identifier of the network node is The unique unique device identifier SUDI of the network node;

The determining module is specifically configured to: verify the device digital certificate corresponding to the SUDI sent by the network node; and when verifying that the device digital certificate is successful, determine that the network node is a legal node according to the verification result of the verification server.

With reference to the fourth aspect, or any one of the first to the tenth possible implementation manners of the fourth aspect, in the eleventh possible implementation manner of the fourth aspect, the IPv4 address is self-organized The IPv4 address of the control plane ACP.

A fifth aspect provides a communication device in an ad hoc network, the communication device comprising: a receiving module, configured to receive an IPv4 address sent by the registration node; and a determining module, configured to determine whether the IPv4 address is available.

In conjunction with the fifth aspect, in a first possible implementation of the fifth aspect, the IPv4 address is automatically generated by a network node.

With reference to the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect, the receiving module is specifically configured to: receive the IPv4 address sent by the registration node, and correspond to the network node Device identification.

In conjunction with the first or second possible implementation of the fifth aspect, in a third possible implementation manner of the fifth aspect, the IPv4 address is automatically generated by the network node, including: in the IPv4 address Each bit is generated by the network node performing a hash operation according to the device identifier; or each bit in the IPv4 address is performed by the network node according to a medium access control MAC address of an interface configured on the network node. Generated by the Greek operation; or, each bit in the IPv4 address is randomly generated by the network node.

With reference to the first or second possible implementation manner of the fifth aspect, in a fourth possible implementation manner of the fifth aspect, the IPv4 address is automatically generated by the network node, including: the front of the IPv4 address The M bit is generated by the network node hashing according to the domain identifier ID of the associated self-organizing domain, and the last 32-M bits of the IPv4 address are determined by the network node according to the device identifier or the interface configured on the network node. The MAC address is generated by hash operation, and M is a positive integer; or, The first N bits of the IPv4 address are generated by the network node performing a hash operation according to the domain ID of the associated self-organizing domain, and the last 32-N bits of the IPv4 address are randomly generated by the network node, and N is a positive integer. .

With reference to the first or second possible implementation manner of the fifth aspect, in a fifth possible implementation manner of the fifth aspect, the IPv4 address is automatically generated by the network node, including: the front of the IPv4 address The M bit is generated by the network node according to the first M bits of the dedicated IPv4 address, and the last 32-M bits of the IPv4 address are generated by the network node according to the device identifier or the MAC address of the interface configured on the network node. M is a positive integer; or, the first N bits of the IPv4 address are generated by the network node according to the first N bits of the private IPv4 address, and the last 32-N bits of the IPv4 address are randomly generated by the network node, where N is A positive integer.

With reference to the first or second possible implementation manner of the fifth aspect, in a sixth possible implementation manner of the fifth aspect, the IPv4 address is automatically generated by the network node, including: the front of the IPv4 address The M bit is generated by the network node according to the first M bits of the private IPv4 address, and the first L bits of the last 32-M bits of the IPv4 address are generated by the network node hashing according to the domain ID of the associated self-organizing domain. The last 32-ML bit in the last 32-M bits of the IPv4 address is generated by the network node performing a hash operation according to the device identifier or the MAC address of the interface configured on the network node, where M and L are positive integers; Or, the first N bits of the IPv4 address are generated by the network node according to the first N bits of the private IPv4 address, and the first L bits of the last 32-N bits of the IPv4 address are the domain of the network node according to the self-organizing domain to which the network node belongs. The ID is hashed, and the last 32-NL bits in the last 32-N bits of the IPv4 address of the network node are randomly generated by the network node, and N and L are positive integers.

With reference to the fifth aspect, or any one of the first to the sixth possible implementation manners of the fifth aspect, in a seventh possible implementation manner of the fifth aspect, the communications apparatus further includes: a sending module, configured to send a first conflict detection reply message to the registration node, where the first conflict detection reply message is used to indicate availability of the IPv4 address;

When the determining module determines that the IPv4 address is available, the first conflict detection reply message indicates that the IPv4 address is available; or, when the determining module determines that the IPv4 address is unavailable, the first conflict detection information includes an IPv4 address increment. Information or available IPv4 address.

With reference to any of the possible implementations of the first to sixth possible implementations of the fifth aspect, in an eighth possible implementation manner of the fifth aspect, the communications apparatus further includes: a second sending module, Sending a second conflict detection reply message to the network node, the second conflict detection reply The message indicates the availability of the IPv4;

When the determining module determines that the IPv4 address is available, the second conflict detection reply message indicates that the IPv4 address is available; or, when the determining module determines that the IPv4 address is unavailable, the second conflict detection information includes an IPv4 address increment. Information or available IPv4 address.

The sixth aspect provides a communication device in an ad hoc network, where the communication device includes: an address generation module, configured to automatically generate an IPv4 address, and a sending module, configured to send a neighbor discovery AD message to the registration node, The AD message carries the device identifier of the communication device and the IPv4 address, and the receiving module is configured to receive the domain certificate and the indication information of the availability of the IPv4 address, where the domain certificate is sent by the registration node, and the connection establishment module is configured to: And establishing an ad hoc control plane ACP with the registration node according to the domain certificate and the indication information received by the receiving module.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the address generating module is configured to: perform a hash operation according to the device identifier to generate each bit in the IPv4 address; or, according to the configuration The medium access control MAC address of the interface performs a hash operation to generate each bit in the IPv4 address; or, randomly generates each bit in the IPv4 address.

With reference to the sixth aspect, in a second possible implementation manner of the sixth aspect, the address generating module is specifically configured to: perform a hash operation according to a domain identifier ID of the associated self-organizing domain to generate a first M-bit of the IPv4 address, Performing a hash operation according to the MAC address of the device identifier or the configured interface to generate the last 32-M bits of the IPv4 address, where M is a positive integer; or, performing a hash operation according to the domain ID of the associated self-organizing domain to generate the IPv4 address. The first N bits, randomly generate the last 32-N bits of the IPv4 address, and N is a positive integer.

With reference to the sixth aspect, in a third possible implementation manner of the sixth aspect, the address generating module is configured to: generate a first M bit of the IPv4 address according to the first M bits of the dedicated IPv4 address, according to the device identifier or configuration The MAC address of the interface is hashed to generate the last 32-M bits of the IPv4 address, and M is a positive integer; or, the first N bits of the IPv4 address are generated according to the first N bits of the private IPv4 address, and the IPv4 address is randomly generated. After 32-N bits, N is a positive integer.

With reference to the sixth aspect, in a fourth possible implementation manner of the sixth aspect, the address generating module is configured to: generate a first M bit of the IPv4 address according to a first M bit of the dedicated IPv4 address, according to the associated self-organizing domain The domain ID is hashed to generate the first L bits of the last 32-M bits of the IPv4 address, and is hashed according to the device identifier or the configured MAC address of the interface to generate the last 32-M bits of the IPv4 address. The last 32-ML bits, M, L are positive integers; or, the first N bits of the IPv4 address are generated according to the first N bits of the private IPv4 address, according to the domain ID of the associated self-organizing domain A hash operation is performed to generate the first L bits of the last 32-N bits of the IPv4 address, and the last 32-N-L bits of the last 32-N bits of the IPv4 address are randomly generated, and N and L are positive integers.

With reference to the sixth aspect, or any one of the possible implementation manners of the first to fourth possible implementation manners of the sixth aspect, in the fifth possible implementation manner of the sixth aspect, the receiving module receives the indication The information indicates that the IPv4 address is available; or the indication information received by the receiving module includes IPv4 address increment information or an available IPv4 address.

With reference to the sixth aspect, or any possible implementation manner of the first to fifth possible implementation manners of the sixth aspect, in the sixth possible implementation manner of the sixth aspect, the receiving module receives the IPv4 The availability indication information is sent by the registration node; or the IPv4 availability indication information received by the receiving module is sent by the conflict detection server.

With reference to the sixth aspect, or any one of the first to the sixth possible implementation manners of the sixth aspect, in a seventh possible implementation manner of the sixth aspect, the device identifier is the communication device The unique device identifies UDI, which is configured with a UDI list.

With reference to the sixth aspect, or any one of the first to the sixth possible implementation manners of the sixth aspect, in the eighth possible implementation manner of the sixth aspect, the device identifier is the communication device The secure unique device identifies SUDI, which is accessible to the authentication server in the Internet.

With reference to the sixth aspect, or any one of the first to the eighth possible implementation manners of the sixth aspect, in the ninth possible implementation manner of the sixth aspect, the IPv4 address is the IPv4 of the ACP address.

The seventh aspect provides a self-organizing network system, comprising: the communication device and the sixth aspect in any possible implementation manner of the first to eleventh possible implementation manners of the fourth aspect or the fourth aspect Or a communication device in any of the possible implementations of the first to ninth possible implementations of the sixth aspect.

The eighth aspect provides a self-organizing network system, including: the communication device in any one of the first to eleventh possible implementation manners of the fourth aspect or the fourth aspect, and the fifth aspect Or the communication device in any of the possible implementations of the first to eighth possible implementations of the fifth aspect, and the sixth to the ninth possible implementation manner of the sixth aspect or the sixth aspect A communication device in a possible implementation.

Based on the foregoing technical features, the communication method, device and system provided by the embodiment of the present invention, the registration node receives the adjacency discovery AD message sent by the network node, and the AD message carries the network node a device identifier and an IPv4 address of the network node, the IPv4 address is automatically generated by the network node; the registration node obtains indication information about availability of the IPv4 address; and the registration node determines, according to the device identifier, whether the network node is a legal node; When the registration node determines that the network node is a legal node, the registration node sends a domain certificate and the indication information to the network node. Thereby, an IPv4-based self-organizing control plane ACP can be established, which improves network compatibility and reduces network deployment obstacles.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are only some of the present invention. For the embodiments, other drawings may be obtained from those skilled in the art without any inventive labor.

1 is a schematic flowchart of a communication method in an ad hoc network according to an embodiment of the present invention;

2 is another schematic flowchart of a communication method in an ad hoc network according to an embodiment of the present invention;

3 is still another schematic flowchart of a communication method in an ad hoc network according to an embodiment of the present invention;

4 is a schematic flowchart of a communication method in an ad hoc network according to another embodiment of the present invention;

FIG. 5 is a schematic flowchart of a communication method in an ad hoc network according to still another embodiment of the present invention; FIG.

6 is a schematic flowchart of a communication method in an ad hoc network according to still another embodiment of the present invention;

FIG. 7 is another schematic flowchart of a communication method in an ad hoc network according to still another embodiment of the present invention; FIG.

FIG. 8 is a schematic flowchart of a communication method in an ad hoc network according to still another embodiment of the present invention; FIG.

9 is another schematic flowchart of a communication method in an ad hoc network according to still another embodiment of the present invention;

FIG. 10 is still another schematic flowchart of a communication method in an ad hoc network according to still another embodiment of the present invention; FIG.

11 is a schematic flow diagram of a communication method in an ad hoc network according to still another embodiment of the present invention. Cheng Tu

FIG. 12 is a schematic flowchart of a communication method in an ad hoc network according to still another embodiment of the present invention; FIG.

13 is a schematic block diagram of a communication device in an ad hoc network according to an embodiment of the present invention;

14 is a schematic block diagram of a communication device in an ad hoc network according to another embodiment of the present invention;

15 is another schematic block diagram of a communication device in an ad hoc network according to another embodiment of the present invention;

16 is still another schematic block diagram of a communication device in an ad hoc network according to another embodiment of the present invention;

17 is a schematic block diagram of a communication device in an ad hoc network according to still another embodiment of the present invention;

18 is a schematic block diagram of a communication device in an ad hoc network according to still another embodiment of the present invention;

19 is a schematic block diagram of a communication device in an ad hoc network according to still another embodiment of the present invention;

20 is a schematic block diagram of a communication device in an ad hoc network in accordance with still another embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the present invention.

It should be understood that, in the prior art technical solution, the device needs to support the self-organizing feature, and needs to support IPv6 first, that is, the establishment of the self-organizing control plane depends on the implementation of IPv6, and there is no scheme for establishing a self-organizing control plane based on IPv4, but now The devices in the network support IPv4 better. Therefore, the network has poor compatibility with devices on the live network, and network deployment is difficult, which brings trouble to management.

It should be understood that the network nodes involved in the embodiments of the present invention are self-organizing nodes, that is, the network nodes support the self-organizing feature, and the network node has its own unique device identifier (Uniform Device Identification (UDI), or device). IDevID Certificate. Its The network node supports the self-organizing feature, which means that the network node has the function of automatically establishing an ad hoc control plane (ACP) or automatically joining the ACP.

It should also be understood that, in the embodiment of the present invention, the network node may be, but not limited to, a router, a switch, a user equipment, and the like. The user equipment may also be referred to as a terminal equipment (Terminal Equipment) or a mobile station (Mobile Station, referred to as " MS"), a mobile terminal, etc., the user equipment can communicate with one or more core networks via a radio access network (Radio Access Network, hereinafter referred to as "RAN"), for example, the user equipment can be a mobile phone (or "cellular" phone), a computer with a mobile terminal, etc., for example, can be portable, pocket, handheld, computer built-in or in-vehicle mobile devices, and terminal devices in future 5G networks or future evolution Terminal equipment in the PLMN network, etc.

FIG. 1 shows a schematic flow chart of a communication method in an ad hoc network according to an embodiment of the present invention. The method may be performed by a network node supporting a domain certificate, for example, the network node may be a router. As shown in FIG. 1, the communication method 100 includes:

S110. The registration node receives a neighbor discovery AD message sent by the network node, where the AD message carries a device identifier of the network node and an IPv4 address of the network node, where the IPv4 address is automatically generated by the network node.

S120. The registration node acquires indication information about the availability of the IPv4 address.

S130. The registration node determines, according to the device identifier, whether the network node is a legal node.

S140. The registration node sends a domain certificate and the indication information to the network node when determining that the network node is a legal node.

Specifically, the registration node receives the adjacency discovery AD message that is sent by the network node, including the device identifier of the network node and the IPv4 address of the network node, determines that the neighbor node is a legal node according to the device identifier, and obtains the availability of the IPv4 address. Instructing information, sending the domain certificate and the indication information determined according to the device identifier to the network node, and after receiving the domain certificate and the indication information, the network node may perform the registration according to the domain certificate and the indication information. The node establishes a self-organizing control plane ACP.

Therefore, in the communication method in the ad hoc network of the embodiment of the present invention, the registration node receives the AD message that is sent by the network node, including the device identifier of the network node and the IPv4 address of the network node, and determines that the network node is a legal node according to the device identifier. And obtaining the indication information of the availability of the IPv4 address, and then sending the domain certificate and the indication information to the network node. Therefore, it is possible to establish an IPv4-based ACP, improve network compatibility, and reduce network deployment obstacles.

In the embodiment of the present invention, the registration node (Registrar) refers to a network node that supports the allocation of a domain certificate, and the registration node can pass a pre-configured domain digital certificate authority (Certificate Authority, referred to as "CA"). The domain certificate is sent for other network nodes within the domain, but the invention is not limited thereto.

It should be noted that the legal node refers to a network node that is allowed to join the self-organizing domain in the same domain as the registered node.

It should be understood that, in the embodiment of the present invention, the Registrar node also sends an AD message to other network nodes, where the AD message carries the domain certificate of the Registrar node, and the domain certificate is assigned by the Registrar node itself, and the Registrar A node can configure its own IPv4 address. For example, it can be generated according to its unique device identifier (Uniform Device Identification (UDI)) through a specific hash HASH algorithm, and the Registrar node maintains an ACP in-plane network node. A list of IP addresses.

It should be noted that the Registrar node creates a secure connection with its neighboring network nodes. After the ACP is created, in order to support multi-hop communication, the ACP also needs each network node to have its own IP address and a virtual route for communication within the ACP. And Virtual Forwarding and Forwarding (VRF), so the network node that needs to join the ACP needs to interact with the Registrar node, use its configured IP address, and join the routing domain of the ACP through the running of the routing protocol. In the middle, if the adjacent network node of the Registrar joins, the adjacent network node of the Registrar needs to be used as a proxy node.

After receiving the AD message sent by the neighboring network node, the Proxy node connects the Registrar node through the IP plane in the ACP plane, and sends the AD message of the neighboring network node to the Registrar node. The Registrar node connects through the IP plane in the ACP plane. The Proxy node sends a message to the Proxy node that needs to be sent to the network node adjacent to the Proxy node, and the Proxy node forwards the message to the neighboring network node.

In the embodiment of the present invention, the IPv4 address of the ACP is separated from the global routing table, so the IPv4 address of the self-organizing control plane ACP can use the entire 32-bit IP address.

In the embodiment of the present invention, the IPv4 address of the network node is an IPv4 address of the ACP.

Optionally, in S110, each bit of the IPv4 address of the network node is generated by the network node performing a hash operation according to the device identifier; or

Each bit of the IPv4 address of the network node is generated by the network node performing a hash operation according to a medium access control MAC address of an interface configured on the network node; or

Each bit in the IPv4 address of the network node is randomly generated by the network node.

Specifically, the network node may generate each bit in the IPv4 address by using a specific hash operation according to UDI or SUDI, and the UDI may be composed of information such as a serial number of the node; the network node may also be based on a certain node The MAC address of the interface is configured with an IPv4 loopback address. The IPv4 loopback address is used as the IPv4 address of the ACP of the network node. The interface can be selected according to the method in the prior art. The network node can also randomly generate a 32-bit IPv4 address.

Optionally, in S110, the first M bits of the IPv4 address of the network node are generated by the network node performing a hash operation according to the domain identifier ID of the associated self-organizing domain, and the last 32- of the IPv4 address of the network node. The M bit is generated by the network node performing a hash operation according to the device identifier or the MAC address of the interface configured on the network node, and M is a positive integer; or

The first N bits of the IPv4 address of the network node are generated by the network node hashing according to the domain ID of the associated self-organizing domain, and the last 32-N bits of the IPv4 address of the network node are randomly generated by the network node. , N is a positive integer.

In other words, the first M bits of the IPv4 address of the network node correspond to the domain ID, and the last 32-M bits correspond to the name of the device. At this time, the newly added network node needs to parse the domain ID of the domain certificate of the neighboring network node received, obtain the domain ID according to this, and perform HASH operation to generate the first M bits of the IPv4 address, and then according to the UDI, SUDI or MAC address. The HASH operation is performed to generate the last 32-M bits of the IPv4 address, or the last 32-M bits of the IPv4 address can be randomly generated. Optionally, the value of M is 8.

Optionally, in S110, the first M bits of the IPv4 address of the network node are generated by the network node according to the first M bits of the dedicated IPv4 address, and the last 32-M bits of the IPv4 address of the network node are the network node according to the network node. The device identifier or the MAC address of the interface configured on the network node is hashed, and M is a positive integer; or

The first N bits of the IPv4 address of the network node are generated by the network node according to the first N bits of the private IPv4 address, and the last 32-N bits of the IPv4 address of the network node are randomly generated by the network node, and N is a positive integer.

Specifically, the network node may generate the first M bits of the IPv4 address according to the first M bits of the dedicated IPv4 address, and the dedicated IPv4 address may be, for example, 10.* of the class A, and perform HASH calculation according to the UDI, SUDI, or MAC address. The last 32-M bits of the IPv4 address, or the last 32-M bits of the 32-bit IPv4 address are randomly generated. Optionally, the value of M is 8.

Optionally, in S110, the first M bits of the IPv4 address of the network node are generated by the network node according to the first M bits of the dedicated IPv4 address, and the first L bits of the last 32-M bits of the IPv4 address of the network node. The network node is generated according to the domain ID of the associated self-organizing domain, and the last 32-ML bits in the last 32-M bits of the IPv4 address of the network node are the network node according to the device identifier or the network. The MAC address of the interface configured on the node is hashed, and M and L are positive integers; or,

The first N bits of the IPv4 address of the network node are generated by the network node according to the first N bits of the private IPv4 address, and the first L bits of the last 32-N bits of the IPv4 address of the network node are the network nodes according to the The domain ID of the organization domain is generated by hash operation. The last 32-NL bits of the last 32-N bits of the IPv4 address of the network node are randomly generated by the network node, and N and L are positive integers.

In other words, the first L bits of the last 32-M bits of the IPv4 address may correspond to the domain ID, and the last 32-M-L bits correspond to the name of the device, and the like. The network node may perform a HASH operation according to the acquired domain ID to generate a first L-bit of the last 32-M bits of the IPv4 address, perform a HASH operation according to the UDI, SUDI or MAC address to generate a rear 32-NL of the last 32-N bits. Bit, or the network node randomly generates the last 32-NL bits of the last 32-N bits. Optionally, the value of L is 8.

In the embodiment of the present invention, since the network node can configure the IPv4 address by itself, and the self-configured IP address does not need the management process of the Dynamic Host Configuration Protocol ("DHCP"), the DHCP server is not required. Can simplify network management.

Optionally, in S110, the IPv4 address may also be pre-configured.

Optionally, as shown in FIG. 2, S120 includes:

S121. The registration node determines whether the IPv4 address is available.

S122. The registration node determines the indication information according to a result of determining whether the IPv4 is available.

That is, the registration node determines whether the IPv4 address conflicts with an existing IPv4 address, and determines the indication information according to the result of the conflict.

In S122, when the registration node determines that the IPv4 address is available, determining that the indication information indicates that the IPv4 address of the network node is available; or, when the registration node determines that the IPv4 address is unavailable, determining that the indication information includes an IPv4 address increment. Information or available IPv4 address.

Optionally, the IPv4 address increment information may indicate that the network node increases the value indicated by the Registrar node on the basis of the IPv4 address configured by the network node. For example, the value of the incremental value may be 1, 2, etc., which is not limited by the disclosure.

Specifically, if the Registrar node does not detect the conflict, the domain node sends a domain certificate to the network node, and sends an acknowledgement ACK message to the network node. After receiving the ACK information, the network node knows that the IPv4 address configured by itself is available. Effective address. If the Registrar node detects a conflict, the Registrar node may add an increment information to the reply message. After receiving the reply message, the network node determines that the IPv4 address configured by itself is an unavailable address, and the network node may increase the address according to the increase. The amount information modifies the IPv4 address, or if the reply message carries an available IPv4 address, the network node can directly configure the available IPv4 address as its own IPv4 address.

Optionally, as shown in FIG. 3, S120 specifically includes:

S123. The registration node sends the IPv4 address to the conflict detection server.

S124. The registration node receives the indication information sent by the conflict detection server, where the indication information indicates that the IPv4 address is available, or the indication information includes an IPv4 address increment information or an available IPv4 address.

In the embodiment of the present invention, the registration node and the conflict detection server agree to send the IPv4 address of the network node to the conflict detection server only when the registration node determines that the network node is a legal node. The registration node may also send the IPv4 address of the network node and the device identifier of the network node to the conflict detection server while determining whether the network node is a legitimate node, and the conflict detection server performs IPv4 address conflict detection, and the conflict detection server is in conflict. After the detection is completed, the node information query message needs to be sent to the registration node to confirm whether the network node is a legal node, and receives the node information query reply message sent by the registration node, and determines that the network node is legal according to the node information query reply message. At the time of the node, the device identifier and the IPv4 address are saved, and the indication information indicating the availability of the IPv4 address is sent to the registration node.

Optionally, in S110, the device identifier of the network node is a unique device identifier UDI of the network node;

Correspondingly, S120 is specifically: the registration node determines that the network node is a legal node when determining that the UDI of the network node is in the UDI list.

That is, the Registrar node is configured with a whitelist of UDIs of the self-organizing nodes. After receiving the AD message sent by the network node, the Registrar node compares the whitelist with the UDI carried in the AD message and the whitelist. If the UDI matches, it is determined that the network node is a legal node, and the ACP can be established. The Registrar node generates a domain certificate according to the UDI and sends it to the network node. After receiving the domain certificate, the network node uses the domain certificate in subsequent AD broadcasts. book.

Optionally, in S110, the device identifier of the network node is a secure unique device identifier SUDI of the network node;

Correspondingly, S120 is specifically: the registration node verifies the device digital certificate corresponding to the SUDI sent by the network node; when the verification of the digital certificate of the device is successful, the registration node determines that the network node is legal according to the verification result of the verification server. node.

Specifically, the network node sends its own device digital certificate (802.1AR certificate) to the Registrar node, and the Registrar node that receives the device digital certificate verifies the certificate by using a public key, and connects to the verification server to verify the network node. Whether the access domain can access the domain, if the verification server verifies that the network node can access the domain, the Registrar node confirms that the network node is a legal node, and the Registrar node generates a domain certificate according to the SUDI, and then sends the domain certificate to the domain A network node, and establishing an ACP with the network node according to the domain certificate.

The embodiments of the present invention are described in detail below with reference to the specific examples.

FIG. 4 shows a schematic flow chart of a communication method in an ad hoc network according to another embodiment of the present invention. As shown in FIG. 4, the communication method 200 includes:

S201, enabling self-organization characteristics of all nodes, and configuring one node as a Registrar node;

The Registrar node supports the allocation of a domain certificate (through a pre-configured Domain CA) and configures a whitelist of UDIs of the self-organizing nodes; the Registrar node configures its own IPv4 address, for example, can be generated by a specific HASH algorithm according to UDI. At the same time, the Registrar node maintains a list of IP addresses of nodes in the ACP plane.

S202. The Registrar node that receives the AD message compares the whitelist. If the UDI matches, the domain certificate is generated according to the UDI in the AD message, and is sent to the neighboring node that sends the AD message. After receiving the domain certificate, the neighbor node receives the domain certificate. The domain certificate will be used in subsequent AD broadcasts;

After the self-organizing feature is enabled, the ad hoc node continuously initiates an AD message every time (for example, 10s) to find its own neighbor. The AD message includes the domain certificate or UDI of the node (including UDI if no domain certificate is assigned).

The neighbor node sends the self-configured IP to the Registrar node simultaneously while transmitting its own UDI. The self-configured IP may be generated according to the UDI through a specific HASH algorithm.

Since the VRF of the ACP is separated from the Global routing table, the range of IPv4 addresses that can be selected for use can be all 32 bits.

After receiving the AD message sent by the neighboring node, the Registrar node can perform collision detection. If the Registrar node does not detect the conflict, the neighboring node receives the domain certificate and obtains an ACK of the Registrar node to identify the IP address. If the Registrar node detects For conflicts, you need to add an incremental message (such as +1) or an available IP to the reply message.

S203. Based on the domain certificate, the Registrar node and the neighbor node create a secure connection and create an ACP.

S204: The node newly joining the ACP joins the Registrar node and uses its configured IP address to join the routing domain of the ACP through the operation of the routing protocol.

The addition of the neighbor of the Registrar neighbor requires the neighbor of the Registrar as the Proxy.

FIG. 5 shows a schematic flow chart of a communication method in an ad hoc network according to still another embodiment of the present invention. As shown in FIG. 5, the method 300 includes:

S301. Enable self-organization characteristics of all nodes, and configure one node as a Registrar node.

The Registrar node supports the allocation of a domain certificate (through a pre-configured Domain CA) and can connect to the Internet to access the authentication server; the Registrar node configures its own IPv4 address, for example, can be generated according to SUDI through a specific HASH algorithm. At the same time, the Registrar node maintains a list of IP addresses of nodes in the ACP plane.

S302: The neighbor node of the Registrar node is found to send its own device digital (802.1AR) certificate to the Registrar node, and the Registrar node that receives the digital certificate of the device uses the public key to verify the certificate, and connects to the verification server to verify the neighbor node. Whether the domain can be accessed, if the verification is successful, the Registrar node generates a domain certificate according to the SUDI of the neighbor node, and sends the domain certificate to the neighbor node;

After the self-organizing feature is enabled, the ad-hoc node initiates an AD message every time (for example, 10s) to find its own neighbor. The AD message includes the domain certificate or SUDI of the node (including SUDI if no domain certificate is assigned).

The neighbor node sends the self-configured IP to the Registrar at the same time as sending its own SUDI. The self-configured IP can be generated according to SUDI through a specific HASH algorithm.

After receiving the AD message sent by the neighboring node, the Registrar can perform collision detection. If the Registrar does not detect the conflict, the neighboring node obtains an ACK of the Registrar and identifies the IP address while receiving the domain certificate. If the Registrar detects the conflict, it needs to Add an incremental message (such as +1) to the reply message, or an available IP.

S303. Based on the domain certificate, the Registrar node and the neighbor node create a secure connection and create an ACP.

S304: The node newly joining the ACP joins the Registrar node, uses its configured IP address, and joins the routing domain through the routing protocol.

6 is a schematic flowchart of a communication method in an ad hoc network according to still another embodiment of the present invention. As shown in FIG. 6, the method 400 includes:

S401. The registration node receives an AD message sent by the network node.

The AD message carries the device identifier of the network node and the automatically generated IPv4 address.

S402. The registration node sends the device identifier and the IPv4 address to the conflict detection server when determining that the network node is allowed to join the self-organizing domain.

S403. The conflict detection server determines whether an IPv4 address conflict exists.

S404. The conflict detection server sends a conflict detection reply message to the registration node.

S405. The registration node sends the conflict detection reply message to the network node.

If the conflict detection server determines that there is a conflict in the IPv4 address in S403, the conflict detection reply message carries an IPv4 address increment information or an available IPv4 address, and if the conflict detection server determines that there is no IPv4 address conflict, the conflict A check reply message indicates that the IPv4 address is available.

Optionally, in S402, if the registration node sends the device identifier and the IPv4 address to the conflict detection server before determining that the network node is allowed to join the self-organizing domain, as shown in FIG. 7, the method 400 further includes:

S406. The conflict detection server sends a node query message to the registration node.

S407. The conflict detection server receives a node query reply message sent by the registration node.

Correspondingly, in S404, when the conflict detection server determines that the network node is allowed to join the ad hoc domain according to the node query reply message, the conflict detection reply message is sent to the registration node.

Optionally, in S402, if the registration node sends the device identifier and the IPv4 address to the conflict detection server before determining that the network node is allowed to join the self-organizing domain, the conflict detection service The server may first determine whether the conflict detection result corresponding to the device identifier and the IPv4 address is saved, and if the conflict detection result corresponding to the device identifier and the IPv4 address is saved, the saved conflict detection is directly saved. The result is sent to the registration node without executing S403. If the conflict detection server determines that the conflict detection result corresponding to the device identification and the IPv4 address is not saved, then S406, S407, and subsequent operations are performed.

It should be understood that the size of the sequence numbers of the above processes does not mean the order of execution order, and the order of execution of each process should be determined by its function and internal logic, for example, S406 and S407 are executed before S404.

A communication method in an ad hoc network according to still another embodiment of the present invention will be described in detail below with reference to FIG. The communication method can be performed by a conflict detection server, as shown in FIG. 8, the communication method 500 includes:

S510. The conflict detection server receives an IPv4 address sent by the registration node.

S520. The conflict detection server determines whether the IPv4 address is available.

Specifically, the conflict detection server receives the registration node to forward the IPv4 address, and performs collision detection to determine whether the IPv4 address is available.

Therefore, in the communication method in the ad hoc network of the embodiment of the present invention, the conflict detection server can receive the IPv4 address sent by the registration node and determine whether the IPv4 address is available, thereby reducing the processing complexity of the registration section.

Optionally, in S510, the IPv4 address is automatically generated by the network node.

Optionally, in S510, each bit in the IPv4 address is generated by the network node performing a hash operation according to the device identifier; or each bit in the IPv4 address is determined by the network node according to the network. The media access control MAC address of the interface configured on the node is hashed; or each bit in the IPv4 address is randomly generated by the network node.

Optionally, in S510, the first M bits of the IPv4 address are generated by the network node according to the domain identifier ID of the associated self-organizing domain, and the last 32-M bits of the IPv4 address are generated by the network. The node performs the device ID or the MAC address of the interface configured on the network node. Generated by the hash operation, M is a positive integer; or, the first N bits of the IPv4 address are generated by the network node hashing according to the domain ID of the associated self-organizing domain, and the last 32-N bits of the IPv4 address It is randomly generated by the network node, and N is a positive integer.

Optionally, in S510, the first M bits of the IPv4 address are generated by the network node according to the first M bits of the dedicated IPv4 address, and the last 32-M bits of the IPv4 address are the network node according to the device identifier or the network. The MAC address of the interface configured on the node is hashed, and M is a positive integer. Alternatively, the first N bits of the IPv4 address are generated by the network node according to the first N bits of the private IPv4 address, and the last 32 bits of the IPv4 address. The -N bit is randomly generated by the network node, and N is a positive integer.

Optionally, in S510, the first M bits of the IPv4 address are generated by the network node according to the first M bits of the dedicated IPv4 address, and the first L bits of the last 32-M bits of the IPv4 address are the network node according to the The domain ID of the self-organizing domain is generated by hash operation, and the last 32-ML bits in the last 32-M bits of the IPv4 address are performed by the network node according to the device identifier or the MAC address of the interface configured on the network node. Generated by the hash operation, M, L is a positive integer; or, the first N bits of the IPv4 address are generated by the network node according to the first N bits of the private IPv4 address, and the first L of the last 32-N bits of the IPv4 address The bit is generated by the network node hashing according to the domain ID of the associated self-organizing domain, and the last 32-NL bits in the last 32-N bits of the IPv4 address of the network node are randomly generated by the network node, N, L is a positive integer.

Optionally, the registration node may forward the IPv4 address together with the device identifier of the network node to the conflict detection server, so that the conflict detection server can determine whether the network node is a legal node according to the device identifier.

Optionally, as shown in FIG. 9, the method 500 further includes:

S530. The conflict detection server sends a first conflict detection reply message to the registration node, where the first conflict detection reply message is used to indicate the availability of the IPv4 address.

In the embodiment of the present invention, optionally, if the conflict detection server and the registration node agree in advance that the registration node sends the IPv4 address of the network node to the conflict detection server only when the registration node determines that the network node is a legal node, the conflict occurs. The detecting server may directly send the first conflict detection reply message to the registration node after determining whether the IPv4 address is available. Otherwise, the conflict detection server may first send a node information query message to the registration node, and the node information is checked. The query message is used to query whether the network node is a legal node, and then the conflict detection server receives the node information query reply message sent by the registration node, and determines that the network node corresponding to the device identifier is a legal node according to the node information query reply message. And saving the device identifier and the IPv4 address, and sending the first conflict detection reply message to the registration node.

In the embodiment of the present invention, after the conflict detection server receives the device identifier and the IPv4 address forwarded by the registration node, the conflict detection server may first determine whether the conflict detection result corresponding to the device identifier and the IPv4 address is saved. If it is determined that the conflict detection result corresponding to the device identifier and the IPv4 address is saved, the first conflict detection reply message is directly sent to the registration node. Otherwise, the conflict detection server needs to send a node query message to the registration node to verify whether the network node corresponding to the device identifier is a legal node, and if it is a legal node, send a first conflict detection reply message to the registration node, if not legal The node does not send the first conflict detection reply message.

Optionally, as shown in FIG. 10, the communication method 500 further includes:

S540: The conflict detection server sends a second conflict detection reply message to the network node corresponding to the device identifier, where the second conflict detection reply message is used to indicate the availability of the IPv4.

Optionally, in S540, the conflict detection server may directly send the second conflict detection reply message to the network node corresponding to the device identifier, or may first send the proxy to the network node corresponding to the device identifier. a node by which the second conflict detection reply message is forwarded to the network node.

In the embodiment of the present invention, optionally, the conflict detection server may further receive a device identifier and an IPv4 address sent by the proxy node, where the proxy node may be a network node that has established a connection with the registration node and is connected to the conflict detection server. The conflict detection server performs collision detection to determine whether the IPv4 address is available, and then determines whether a conflict detection result corresponding to the device identifier and the IPv4 address is saved, if it is determined that the device identifier and the IPv4 are saved. The conflict detection result corresponding to the address directly sends a conflict detection reply message to the proxy node. Otherwise, the conflict detection server needs to send a node query message to the registration node to verify whether the network node corresponding to the device identifier is a legal node, and if it is a legal node, send a conflict detection reply message to the registration node, if not a legitimate node. Do not send conflict detection responses Message.

A schematic flowchart of a communication method in an ad hoc network according to still another embodiment of the present invention will be described in detail below with reference to FIG. As shown in FIG. 11, the communication method 600 includes:

S601. The registration node receives an AD message sent by the network node, and verifies that the network node is allowed to be added to the self-organizing domain.

S602. The conflict detection server receives the device identifier and the IPv4 address carried in the AD message of the network node sent by the proxy node.

When the proxy node sends the device identifier and the IPv4 address to the conflict detection server, it first receives the AD message sent by the network node.

S603. The conflict detection server determines whether an IPv4 address conflict exists.

S604. The conflict detection server sends a node information query message to the registration node.

S605. The conflict detection server receives the node information query reply message sent by the registration node.

S606. When the conflict detection server determines, according to the node information query reply message, that the network node is allowed to join the ad hoc domain, send a conflict detection reply message to the proxy node.

S607. The proxy node sends a conflict detection reply message to the network node.

Optionally, before the conflict detection server executes S603, it may be determined whether a conflict detection result corresponding to the device identifier and the IPv4 address is saved, if the conflict detection corresponding to the device identifier and the IPv4 address is saved. As a result, the saved conflict detection result is directly sent to the proxy node without executing S603. If the conflict detecting server determines that the conflict detection result corresponding to the device identification and the IPv4 address is not saved, the operations of S603 and thereafter are performed.

A schematic flowchart of a communication method in an ad-hoc network according to still another embodiment of the present invention, which may be performed by a network node (e.g., a router) as shown in FIG. 12, is illustrated in conjunction with FIG. include:

S710. The network node automatically generates an IPv4 address.

S720, the network node sends a neighbor discovery AD message to the registration node, where the AD message carries the device identifier of the network node and the IPv4 address;

S730, the network node receives the domain certificate and the indication information of the availability of the IPv4 address, the domain The certificate is sent by the registration node;

S740. The network node establishes an ad hoc control plane ACP with the registration node according to the domain certificate and the indication information.

Specifically, the network node in the network automatically generates an IPv4 address, and sends a neighbor discovery AD message carrying the device identifier and the IPv4 address to the registration node to support the domain certificate, and then receives the domain determined by the registration node according to the device identifier. And a certificate indicating the availability of the IPv4 address, and establishing an ACP with the registration node according to the domain certificate and the indication information.

Therefore, in the communication method in the ad hoc network of the embodiment of the present invention, the network node sends an AD message to the registration node capable of supporting the allocation of the domain certificate, and receives the device identifier determined by the registration node according to the device identifier in the AD message sent by the node. The domain certificate and the indication information indicating the availability of the IPv4 address, and then establishing an ACP with the registration node according to the domain certificate and the indication information. Therefore, it is possible to establish an IPv4-based ACP, improve network compatibility, and reduce network deployment obstacles.

In the embodiment of the present invention, when the network node is not a neighboring node of a Registrar, the network node needs to first send an AD message to its neighboring network node, and then the network node connected through the network node in turn Forward, and finally forward the AD message to the Registrar node.

Optionally, in S710, the IPv4 address is an IPv4 address of the ACP.

Optionally, in S720, the device identifier is a unique device identifier UDI of the network node, and the registration node is configured with a UDI list.

Optionally, in S720, the device identifier is a secure unique device identifier SUDI of the network node, and the registration node is capable of accessing an authentication server in the Internet.

Optionally, in S720, the indication information indicates that the IPv4 address is available; or the indication information includes an IPv4 address increment information or an available IPv4 address.

Optionally, the S710 is specifically: the network node performs a hash operation according to the device identifier to generate each bit in the IPv4 address; or the network node performs a hash operation according to the media access control MAC address of the configured interface to generate the Each bit in the IPv4 address; or, the network node randomly generates each bit in the IPv4 address.

Optionally, the S710 is specifically: the network node performs a hash operation according to the domain identifier ID of the associated self-organizing domain to generate a first M-bit of the IPv4 address, and performs a hash operation according to the device identifier or the configured MAC address of the interface. The last 32-M bits of the IPv4 address, M is a positive integer; or, the network node performs a hash operation according to the domain ID of the associated self-organizing domain to generate the IPv4 address. N bits, the last 32-N bits of the IPv4 address are randomly generated, and N is a positive integer.

Optionally, the S710 is specifically: the network node generates the first M bits of the IPv4 address according to the first M bits of the dedicated IPv4 address, and performs hash operation according to the device identifier or the MAC address of the configured interface to generate the last 32 of the IPv4 address. -M bits, M is a positive integer; or, the network node generates the first N bits of the IPv4 address according to the first N bits of the private IPv4 address, and randomly generates the last 32-N bits of the IPv4 address, where N is a positive integer.

Optionally, the S710 is specifically: the network node generates the first M bits of the IPv4 address according to the first M bits of the dedicated IPv4 address, and performs hash operation according to the domain ID of the associated self-organizing domain to generate the last 32-M of the IPv4 address. The first L bits in the bit are hashed according to the device identifier or the MAC address of the configured interface to generate the last 32-ML bits in the last 32-M bits of the IPv4 address, where M and L are positive integers; or

The network node generates the first N bits of the IPv4 address according to the first N bits of the dedicated IPv4 address, performs hash operation according to the domain ID of the associated self-organizing domain, and generates the first L bits in the last 32-N bits of the IPv4 address, randomly. The last 32-NL bits of the last 32-N bits of the IPv4 address are generated, N, L being positive integers.

Optionally, in S730, the IPv4 availability indication information is sent by the registration node; or the IPv4 availability indication information is sent by the conflict detection server.

Therefore, in the communication method in the ad hoc network of the embodiment of the present invention, the network node sends an AD message to the registration node, and receives a domain certificate determined by the registration node and determined by the device identifier in the AD message sent by the node, and indicates the IPv4. An indication of address availability, and then establishing an ACP with the registration node according to the domain certificate and the indication information. Therefore, it is possible to establish an IPv4-based ACP, improve network compatibility, and reduce network deployment obstacles.

A communication device in an ad hoc network according to an embodiment of the present invention will be described in detail below with reference to FIG. As shown in FIG. 13, the communication device 10 includes:

The receiving module 11 is configured to receive a neighbor discovery AD message sent by the network node, where the AD message carries a device identifier of the network node and an IPv4 address of the network node, where the IPv4 address is automatically generated by the network node;

The obtaining module 12 is configured to obtain indication information about the availability of the IPv4 address;

The determining module 13 is configured to determine, according to the device identifier, whether the network node is a legal node;

The sending module 14 is configured to send the domain certificate and the indication information to the network node when the determining module 11 determines that the network node is a legal node.

Therefore, the communication device in the ad hoc network of the embodiment of the present invention receives the AD message that is sent by the network node, including the device identifier of the network node and the IPv4 address of the network node, determines that the network node is a legal node according to the device identifier, and obtains the The indication information of the availability of the IPv4 address, and then the domain certificate and the indication information are sent to the network node. Therefore, it is possible to establish an IPv4-based ACP, improve network compatibility, and reduce network deployment obstacles.

In the embodiment of the present invention, optionally, each bit in the IPv4 address is generated by the network node performing a hash operation according to the device identifier; or each bit in the IPv4 address is determined by the network node. The hash operation is generated according to the medium access control MAC address of the interface configured on the network node; or each bit in the IPv4 address is randomly generated by the network node.

In the embodiment of the present invention, optionally, the first M bits of the IPv4 address are generated by the network node according to the domain identifier ID of the associated self-organizing domain, and the last 32-M bits of the IPv4 address are Generated by the network node according to the device identifier or the MAC address of the interface configured on the network node, M is a positive integer; or the first N bits of the IPv4 address are self-organized according to the network node The domain ID of the domain is generated by hash operation. The last 32-N bits of the IPv4 address are randomly generated by the network node, and N is a positive integer.

In the embodiment of the present invention, optionally, the IPv4 address is automatically generated by the network node, and includes: the first M bits of the IPv4 address are generated by the network node according to the first M bits of the dedicated IPv4 address, and the IPv4 address is generated. The last 32-M bits are generated by the network node according to the device identifier or the MAC address of the interface configured on the network node, and M is a positive integer; or the first N bits of the IPv4 address are the network node. According to the first N bits of the private IPv4 address, the last 32-N bits of the IPv4 address are randomly generated by the network node, and N is a positive integer.

In the embodiment of the present invention, optionally, the first M bits of the IPv4 address are generated by the network node according to the first M bits of the dedicated IPv4 address, and the first L bits of the last 32-M bits of the IPv4 address are the network. The node generates a hash operation according to the domain ID of the own self-organizing domain, and the last 32-ML bits in the last 32-M bits of the IPv4 address are the network node according to the device identifier or the interface configured on the network node. If the MAC address is hashed, M and L are positive integers; or, the first N bits of the IPv4 address are generated by the network node according to the first N bits of the private IPv4 address, and the last 32-N bits of the IPv4 address are The first L bit is generated by the network node hashing according to the domain ID of the associated self-organizing domain, and the last 32-NL bits in the last 32-N bits of the IPv4 address of the network node are randomly generated by the network node. , N, L are positive integers.

In the embodiment of the present invention, the acquiring module 12 is specifically configured to: determine the IPv4 ground. Whether the address is available; the indication information is determined according to the result of determining whether the IPv4 is available.

In the embodiment of the present invention, the obtaining module 12 is specifically configured to: when determining that the IPv4 address is available, determining that the indication information indicates that an IPv4 address of the network node is available; or, when determining that the IPv4 address is unavailable, It is determined that the indication information includes IPv4 address increment information or an available IPv4 address.

In the embodiment of the present invention, the sending module 14 is further configured to: send the IPv4 address to the conflict detection server;

The obtaining module 12 is specifically configured to: receive the indication information sent by the conflict detection server, where the indication information indicates that the IPv4 address is available, or the indication information includes an IPv4 address increment information or an available IPv4 address;

In the embodiment of the present invention, the sending module 14 is specifically configured to: send the IPv4 address and the device identifier to the conflict detection server.

In the embodiment of the present invention, optionally, the device identifier of the network node is a unique device identifier UDI of the network node;

The determining module 13 is specifically configured to: when determining that the UDI of the network node is in the UDI list, determine that the network node is a legal node.

In the embodiment of the present invention, optionally, the device identifier of the network node is a secure unique device identifier SUDI of the network node;

The determining module 13 is specifically configured to: verify the device digital certificate corresponding to the SUDI sent by the network node; and when verifying that the device digital certificate is successful, determine that the network node is a legal node according to the verification result of the verification server.

In the embodiment of the present invention, optionally, the IPv4 address is an IPv4 address of the self-organizing control plane ACP.

It should be understood that the communication device 10 in accordance with an embodiment of the present invention may correspond to performing the method 100 in an embodiment of the present invention, and that the above and other operations and/or functions of the various modules in the communication device 10 are respectively implemented in order to implement FIGS. 1 through 3 The corresponding processes of each method in the following are not repeated here for brevity.

Therefore, the communication device in the ad hoc network of the embodiment of the present invention receives the AD message that is sent by the network node, including the device identifier of the network node and the IPv4 address of the network node, determines that the network node is a legal node according to the device identifier, and obtains the The indication information of the availability of the IPv4 address, and then the domain certificate and the indication information are sent to the network node. Thereby, an IPv4 based ACP can be established, Improve network compatibility and reduce network deployment barriers.

FIG. 14 shows a communication device in an ad hoc network according to another embodiment of the present invention. As shown in FIG. 14, the communication device 20 includes:

The receiving module 21 is configured to receive an IPv4 address sent by the registration node;

The determining module 22 is configured to determine whether the IPv4 address is available.

Therefore, the communication device in the ad hoc network of the embodiment of the present invention can receive the IPv4 address sent by the registration node and determine whether the IPv4 address is available, thereby reducing the processing complexity of the registration node.

In the embodiment of the present invention, optionally, the IPv4 address is automatically generated by a network node.

In the embodiment of the present invention, the receiving module 21 is specifically configured to: receive the IPv4 address sent by the registration node and a device identifier corresponding to the network node.

In the embodiment of the present invention, optionally, the first M bits of the IPv4 address are generated by the network node according to the first M bits of the dedicated IPv4 address, and the last 32-M bits of the IPv4 address are the network node according to the device identifier. Or the MAC address of the interface configured on the network node is hashed, and M is a positive integer; or, the first N bits of the IPv4 address are generated by the network node according to the first N bits of the dedicated IPv4 address, and the IPv4 address is generated. The last 32-N bits are randomly generated by the network node, and N is a positive integer.

In the embodiment of the present invention, optionally, the first M bits of the IPv4 address are generated by the network node according to the first M bits of the dedicated IPv4 address, and the first L bits of the last 32-M bits of the IPv4 address are the network. The node generates a hash operation according to the domain ID of the own self-organizing domain, and the last 32-ML bits in the last 32-M bits of the IPv4 address are the network node according to the device identifier or the network node. The MAC address of the configured interface is generated by hash operation, and M and L are positive integers. Alternatively, the first N bits of the IPv4 address are generated by the network node according to the first N bits of the private IPv4 address, and the last 32 bits of the IPv4 address. The first L bit in the -N bit is generated by the network node hashing according to the domain ID of the associated self-organizing domain, and the last 32-NL bits in the last 32-N bits of the IPv4 address of the network node are the network Randomly generated by the node, N, L are positive integers.

In the embodiment of the present invention, optionally, as shown in FIG. 15, the communication device further includes: a first sending module 23, configured to send a first conflict detection reply message to the registration node, where the first conflict detection reply message is used Indicating the availability of the IPv4 address;

When the determining module 22 determines that the IPv4 address is available, the first conflict detection reply message indicates that the IPv4 address is available; or, when the determining module 22 determines that the IPv4 address is unavailable, the first conflict detection information includes an IPv4 address increase. Quantity information or available IPv4 address.

In the embodiment of the present invention, optionally, as shown in FIG. 16, the communication device further includes: a second sending module 24, configured to send, to the network node, a second conflict detection reply message, the second conflict detection reply message Indicate the availability of the IPv4;

When the determining module 22 determines that the IPv4 address is available, the second conflict detection reply message indicates that the IPv4 address is available; or, when the determining module 22 determines that the IPv4 address is unavailable, the second conflict detection information includes an IPv4 address increase. Quantity information or available IPv4 address.

It is to be understood that communication device 20 in accordance with an embodiment of the present invention may correspond to performing method 700 in an embodiment of the present invention, and that the above and other operations and/or functions of various modules in communication device 20 are respectively implemented in order to implement FIGS. 8-10 The corresponding processes of each method in the following are not repeated here for brevity.

A schematic flowchart of a communication method in a self-organizing network according to still another embodiment of the present invention is described in detail below with reference to FIG. 17. As shown in FIG. 17, the communication device 30 includes:

An address generation module 31, configured to automatically generate an IPv4 address;

The sending module 32 is configured to send a neighbor discovery AD message to the registration node, where the AD message carries the device identifier of the communication device and the IPv4 address;

The receiving module 33 is configured to receive the domain certificate and the indication information about the availability of the IPv4 address, where the domain certificate is sent by the registration node;

The connection establishing module 34 is configured to establish an ad hoc control plane ACP with the registration node according to the domain certificate and the indication information received by the receiving module.

Therefore, the communication device in the ad hoc network of the embodiment of the present invention sends an AD message to the registration node, and receives a domain certificate determined by the registration node and determined by the device identifier in the AD message sent by the node, and indicates the availability of the IPv4 address. Instructing information, and then establishing an ACP with the registration node according to the domain certificate and the indication information. Therefore, it is possible to establish an IPv4-based ACP, improve network compatibility, and reduce network deployment obstacles.

In the embodiment of the present invention, the address generating module 31 is specifically configured to: perform a hash operation according to the device identifier to generate each bit in the IPv4 address; or control the MAC address according to the media access of the configured interface. A hash operation is performed to generate each bit in the IPv4 address; or, each bit in the IPv4 address is randomly generated.

In the embodiment of the present invention, the address generating module 31 is specifically configured to: perform a hash operation according to the domain identifier ID of the associated self-organizing domain to generate the first M bits of the IPv4 address, according to the device identifier or configuration. The MAC address of the interface is hashed to generate the last 32-M bits of the IPv4 address, and M is a positive integer. Alternatively, the first N bits of the IPv4 address are generated by hashing according to the domain ID of the associated self-organizing domain, and randomly generated. The last 32-N bits of the IPv4 address, N is a positive integer.

In the embodiment of the present invention, the address generating module 31 is specifically configured to: generate the first M bits of the IPv4 address according to the first M bits of the dedicated IPv4 address, and perform the HA according to the device identifier or the configured MAC address of the interface. The operation generates the last 32-M bits of the IPv4 address, and M is a positive integer; or, the first N bits of the IPv4 address are generated according to the first N bits of the private IPv4 address, and the last 32-N bits of the IPv4 address are randomly generated, N Is a positive integer.

In the embodiment of the present invention, the address generating module 31 is specifically configured to: generate a front M bit of the IPv4 address according to the first M bits of the dedicated IPv4 address, and perform a hash operation according to the domain ID of the associated self-organizing domain. Generating the first L-bit in the last 32-M bits of the IPv4 address, performing hash operation according to the device identifier or the MAC address of the configured interface, and generating the last 32-ML bits in the last 32-M bits of the IPv4 address, M L is a positive integer; or, the first N bits of the IPv4 address are generated according to the first N bits of the private IPv4 address, and the hash operation is performed according to the domain ID of the associated self-organizing domain to generate the last 32-N bits of the IPv4 address. The first L bits randomly generate the last 32-NL bits of the last 32-N bits of the IPv4 address, and N, L are positive integers.

In the embodiment of the present invention, optionally, the indication information received by the receiving module 33 indicates that the IPv4 address is available; or the indication information received by the receiving module 33 includes an IPv4 address increment letter. Interest or available IPv4 address.

In the embodiment of the present invention, optionally, the IPv4 availability indication information received by the receiving module 33 is sent by the registration node; or the IPv4 availability indication information received by the receiving module 33 is sent by the conflict detection server. .

In the embodiment of the present invention, optionally, the device identifier is a unique device identifier UDI of the communication device, and the registration node is configured with a UDI list.

In the embodiment of the present invention, optionally, the device identifier is a secure unique device identifier SUDI of the communication device, and the registration node is capable of accessing an authentication server in the Internet.

In the embodiment of the present invention, optionally, the IPv4 address is an IPv4 address of the ACP.

It should be understood that communication device 30 in accordance with an embodiment of the present invention may correspond to performing method 700 in an embodiment of the present invention, and that the above and other operations and/or functions of various modules in communication device 30 are respectively implemented in order to implement each of FIG. The corresponding process of the method is not repeated here for the sake of brevity.

The embodiment of the present invention provides a self-organizing network system, including the communication device 10 shown in FIG. 13 and the communication device 30 shown in FIG.

The embodiment of the present invention further provides a self-organizing network system, including the communication device 10 shown in FIG. 13, the communication device 30 shown in FIG. 17, and the communication device 20 shown in any of FIGS. 14 to 16.

As shown in FIG. 18, an embodiment of the present invention further provides a communication device 40 in an ad hoc network. The communication device 40 includes a processor 41, a memory 42, a receiver 43, a transmitter 44, and a bus system 45. The processor 41, the memory 42, the receiver 43, and the transmitter 44 are connected by a bus system 45 for storing instructions for executing instructions stored in the memory 42 to control the receiver 43 to receive. The signal and transmitter 44 sends a signal. The receiver 43 is configured to receive a neighbor discovery AD message sent by the network node, where the AD message carries a device identifier of the network node and an IPv4 address of the network node, where the IPv4 address is automatically generated by the network node; The processor 41 is configured to obtain the indication information of the availability of the IPv4 address, and the processor 41 is further configured to determine, according to the device identifier, whether the network node is a legal node; the transmitter 44. For transmitting, when the processor 41 determines that the network node is a legal node, sending a domain certificate and the indication information to the network node.

It should be understood that, in the embodiment of the present invention, the processor 41 may be a central processing unit ("CPU"), and the processor 41 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 42 can include read only memory and random access memory and provides instructions and data to the processor 41. A portion of the memory 42 may also include a non-volatile random access memory. For example, the memory 42 can also store information of the device type.

The bus system 45 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 45 in the figure.

In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 41 or an instruction in a form of software. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 42, and the processor 41 reads the information in the memory 42 and performs the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

Optionally, as an embodiment, the IPv4 address is automatically generated by the network node, and includes: each bit in the IPv4 address is generated by the network node performing a hash operation according to the device identifier; or Each bit in the IPv4 address is generated by the network node hashing according to the medium access control MAC address of the interface configured on the network node; or each bit in the IPv4 address is randomly generated by the network node of.

Optionally, as an embodiment, the IPv4 address is automatically generated by the network node. The method includes: the first M bits of the IPv4 address are generated by the network node according to the domain identifier ID of the associated self-organizing domain, and the last 32-M bits of the IPv4 address are determined by the network node according to the device identifier or If the MAC address of the interface configured on the network node is hashed, M is a positive integer; or the first N bits of the IPv4 address are generated by the network node according to the domain ID of the self-organizing domain to which the network node belongs. The last 32-N bits of the IPv4 address are randomly generated by the network node, and N is a positive integer.

Optionally, as an embodiment, the IPv4 address is automatically generated by the network node, including: the first M bits of the IPv4 address are generated by the network node according to the first M bits of the dedicated IPv4 address, and the IPv4 address is followed by the IPv4 address. The 32-M bit is generated by the network node performing a hash operation according to the device identifier or the MAC address of the interface configured on the network node, where M is a positive integer; or, the first N bits of the IPv4 address are the network node according to the dedicated Generated by the first N bits of the IPv4 address, the last 32-N bits of the IPv4 address are randomly generated by the network node, and N is a positive integer.

Optionally, as an embodiment, the IPv4 address is automatically generated by the network node, including: the first M bits of the IPv4 address are generated by the network node according to the first M bits of the dedicated IPv4 address, and the IPv4 address is followed by the IPv4 address. The first L bit in the 32-M bit is generated by the network node hashing according to the domain ID of the associated self-organizing domain, and the last 32-ML bits in the last 32-M bits of the IPv4 address are the network node according to the network node. The device identifier or the MAC address of the interface configured on the network node is hashed, and M, L are positive integers; or, the first N bits of the IPv4 address are generated by the network node according to the first N bits of the dedicated IPv4 address. The first L bit in the last 32-N bits of the IPv4 address is generated by the network node performing a hash operation according to the domain ID of the associated self-organizing domain, and the last 32-N bits of the IPv4 address of the network node The last 32-NL bits are randomly generated by the network node, and N and L are positive integers.

Optionally, as an embodiment, the processor 41 is specifically configured to: determine whether the IPv4 address is available; and determine the indication information according to a result of determining whether the IPv4 is available.

Optionally, as an embodiment, the processor 41 is specifically configured to: when determining that the IPv4 address is available, determine that the indication information indicates that an IPv4 address of the network node is available; or, when determining that the IPv4 address is unavailable, determine the The indication information includes IPv4 address increment information or an available IPv4 address.

Optionally, in an embodiment, the transmitter 44 is further configured to: send the IPv4 address to the conflict detection server;

The receiver 43 is specifically configured to: receive the indication sent by the conflict detection server. The indication information indicates that the IPv4 address is available, or the indication information includes an IPv4 address increment information or an available IPv4 address;

Optionally, as an embodiment, the transmitter 44 is specifically configured to: send the IPv4 address and the device identifier to the conflict detection server.

It should be understood that the communication device 40 according to an embodiment of the present invention may correspond to the communication device 10 in the embodiment of the present invention, and may correspond to a corresponding body in the method according to the embodiment of the present invention, and each module in the communication device 40 The above and other operations and/or functions are respectively implemented in order to implement the respective processes of the respective methods in FIG. 1 to FIG. 3, and are not described herein again for brevity.

As shown in FIG. 19, an embodiment of the present invention further provides a communication device 50 in an ad hoc network, the communication device 50 including a processor 51, a memory 52, a receiver 53, a transmitter 54, and a bus system 55. The processor 51, the memory 52, the receiver 53, and the transmitter 54 are connected by a bus system 55 for storing instructions for executing instructions stored in the memory 52 to control the receiver 53 to receive. The signal and transmitter 54 sends a signal. The receiver 53 is configured to receive an IPv4 address sent by the registration node, and the processor 51 is configured to determine whether the IPv4 address is available.

It should be understood that, in the embodiment of the present invention, the processor 51 may be a central processing unit ("CPU"), and the processor 51 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 52 can include read only memory and random access memory and provides instructions and data to the processor 51. A portion of the memory 52 may also include a non-volatile random access memory. For example, the memory 52 can also store information of the device type.

The bus system 55 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 55 in the figure.

In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 51 or an instruction in a form of software. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 52, and the processor 51 reads the information in the memory 52 and performs the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

Optionally, as an embodiment, the IPv4 address is automatically generated by the network node.

Optionally, as an embodiment, the receiver 53 is specifically configured to: receive the IPv4 address sent by the registration node and a device identifier corresponding to the network node.

Optionally, as an embodiment, the transmitter 54 is configured to send, to the registration node, a first conflict detection reply message, where the first conflict detection reply message is used to indicate availability of the IPv4 address;

Wherein, when the processor 51 determines that the IPv4 address is available, the first conflict detection reply message indicates that the IPv4 address is available; or

When the processor 51 determines that the IPv4 address is unavailable, the first conflict detection information includes IPv4 address increment information or an available IPv4 address.

Optionally, as an embodiment, the transmitter 54 is further configured to send, to the network node, a second conflict detection reply message, where the second conflict detection reply message indicates availability of the IPv4;

Wherein, when the processor 51 determines that the IPv4 address is available, the second conflict detection reply message indicates that the IPv4 address is available; or

When the processor 51 determines that the IPv4 address is unavailable, the second collision detection information includes IPv4 address increment information or an available IPv4 address.

It should be understood that the communication device 50 according to an embodiment of the present invention may correspond to the communication device 20 in the embodiment of the present invention, and may correspond to a corresponding body in the method according to the embodiment of the present invention, and each module in the communication device 50 The above and other operations and/or functions are respectively implemented in order to implement the respective processes of the respective methods in FIG. 8 to FIG. 10, and are not described herein again for brevity.

Therefore, the communication device in the ad hoc network of the embodiment of the present invention can receive the IPv4 address sent by the registration node, and determine whether the IPv4 address is available, thereby reducing the processing of the registration section. Miscellaneous.

As shown in FIG. 20, an embodiment of the present invention further provides a communication device 60 in an ad hoc network, the communication device 60 including a processor 61, a memory 62, a transmitter 63, a receiver 64, and a bus system 65. The processor 61, the memory 62, the transmitter 63 and the receiver 64 are connected by a bus system 65 for storing instructions for executing instructions stored in the memory 62 for controlling the transmitter 63 to transmit Signal and receiver 64 receive the signal. The processor 61 is configured to automatically generate an IPv4 address, and the transmitter 63 is configured to send a neighbor discovery AD message to the registration node, where the AD message carries a device identifier of the communication device and the IPv4 address; The device 64 is configured to receive the domain certificate and the indication information of the IPv4 address availability, where the domain certificate is sent by the registration node. The processor 61 is further configured to receive the domain certificate and the indication according to the receiver 64. The information establishes an ad hoc control plane ACP with the registration node.

It should be understood that, in the embodiment of the present invention, the processor 61 may be a central processing unit ("CPU"), and the processor 61 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 62 can include read only memory and random access memory and provides instructions and data to the processor 61. A portion of the memory 62 may also include a non-volatile random access memory. For example, the memory 62 can also store information of the device type.

The bus system 65 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 65 in the figure.

In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 61 or an instruction in a form of software. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. Software modules can be located in random access memory, flash memory, read-only memory, programmable only Read memory or electrically erasable programmable memory, registers, etc. are well-known storage media in the field. The storage medium is located in the memory 62, and the processor 61 reads the information in the memory 62 and, in conjunction with its hardware, performs the steps of the above method. To avoid repetition, it will not be described in detail here.

Optionally, as an embodiment, the processor 61 is specifically configured to: perform a hash operation according to the device identifier to generate each bit in the IPv4 address; or control a MAC address according to a media access of the configured interface. Performing a hash operation to generate each bit in the IPv4 address; or randomly generating each bit in the IPv4 address.

Optionally, as an embodiment, the processor 61 is specifically configured to: perform a hash operation according to a domain identifier ID of the associated self-organizing domain to generate a first M-bit of the IPv4 address, according to the device identifier or configuration. The MAC address of the interface is hashed to generate the last 32-M bits of the IPv4 address, and M is a positive integer; or, the hash operation is performed according to the domain ID of the associated self-organizing domain to generate the first N bits of the IPv4 address, The last 32-N bits of the IPv4 address are randomly generated, and N is a positive integer.

Optionally, as an embodiment, the processor 61 is specifically configured to: generate a first M bit of the IPv4 address according to the first M bits of the dedicated IPv4 address, and perform, according to the device identifier or the configured MAC address of the interface. The operation generates the last 32-M bits of the IPv4 address, and M is a positive integer; or, generates the first N bits of the IPv4 address according to the first N bits of the dedicated IPv4 address, and randomly generates the last 32-N of the IPv4 address. Bit, N is a positive integer.

Optionally, as an embodiment, the processor 61 is specifically configured to: generate a first M bit of the IPv4 address according to a first M bits of the dedicated IPv4 address, and perform a hash operation according to the domain ID of the associated self-organizing domain. The first L bits of the last 32-M bits of the IPv4 address are hashed according to the device identifier or the configured MAC address of the interface to generate the last 32-ML bits of the last 32-M bits of the IPv4 address. , M, L is a positive integer; or, the first N bits of the IPv4 address are generated according to the first N bits of the private IPv4 address, and the hash operation is performed according to the domain ID of the associated self-organizing domain to generate the last 32- of the IPv4 address. The first L bits of the N bits randomly generate the last 32-NL bits of the last 32-N bits of the IPv4 address, and N, L are positive integers.

Optionally, as an embodiment, the indication information received by the receiver 64 indicates that the IPv4 address is available; or the indication information received by the receiver 64 includes an IPv4 address increment information or an available IPv4 address. .

Optionally, as an embodiment, the IPv4 availability indication information received by the receiver 64 is sent by the registration node; or the IPv4 availability received by the receiver 64. The indication information is sent by the conflict detection server.

It should be understood that the communication device 60 according to an embodiment of the present invention may correspond to the communication device 30 in the embodiment of the present invention, and may correspond to a corresponding body in the method according to the embodiment of the present invention, and each module in the communication device 60 The above and other operations and/or functions are respectively implemented in order to implement the corresponding processes of the respective methods in FIG. 12, and are not described herein again for brevity.

It is to be understood that the phrase "one embodiment" or "an embodiment" or "an" Thus, "in one embodiment" or "in an embodiment" or "an" In addition, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the various embodiments of the present invention, it should be understood that the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention. The implementation process constitutes any limitation.

Additionally, the terms "system" and "network" are used interchangeably herein. It should be understood that the term "and/or" herein is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and A and B exist simultaneously. There are three cases of B alone. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

In the embodiments provided herein, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined from A. However, it should also be understood that determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both, for clarity of hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. Professional technicians can each The particular application uses different methods to implement the described functionality, but such implementation should not be considered to be beyond the scope of the invention.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

An integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, can be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a USB flash drive, a mobile hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a disk or a CD. A variety of media that can store program code.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the protection of the present invention The scope should be determined by the scope of the claims.

Claims

A communication method in a self-organizing network, characterized in that the communication method comprises:

The registration node receives the adjacency discovery AD message sent by the network node, where the AD message carries the device identifier of the network node and an IPv4 address of the network node, where the IPv4 address is automatically generated by the network node;

The registration node acquires indication information of the availability of the IPv4 address;

Determining, by the registration node, whether the network node is a legal node according to the device identifier;

The determining node sends the domain certificate and the indication information to the network node when determining that the network node is a legal node.
The communication method according to claim 1, wherein the IPv4 address is automatically generated by the network node, and includes:

Each bit of the IPv4 address is generated by the network node performing a hash operation according to the device identifier; or

Each bit of the IPv4 address is generated by the network node performing a hash operation according to a medium access control MAC address of an interface configured on the network node; or

Each bit of the IPv4 address is randomly generated by the network node.
The communication method according to claim 1, wherein the IPv4 address is automatically generated by the network node, and includes:

The first M bits of the IPv4 address are generated by the network node performing a hash operation according to the domain identifier ID of the associated self-organizing domain, and the last 32-M bits of the IPv4 address are determined by the network node according to the If the device identifier or the MAC address of the interface configured on the network node is hashed, M is a positive integer; or,

The first N bits of the IPv4 address are generated by the network node performing a hash operation according to the domain ID of the associated self-organizing domain, and the last 32-N bits of the IPv4 address are randomly generated by the network node. N is a positive integer.
The communication method according to claim 1, wherein the IPv4 address is automatically generated by the network node, and includes:

The first M bits of the IPv4 address are generated by the network node according to the first M bits of the dedicated IPv4 address, and the last 32-M bits of the IPv4 address are the network node according to the device identifier or the network node. If the MAC address of the configured interface is hashed, M is a positive integer; or,

The first N bits of the IPv4 address are generated by the network node according to the first N bits of the dedicated IPv4 address, and the last 32-N bits of the IPv4 address are randomly generated by the network node, and N is a positive integer.
The communication method according to claim 1, wherein the IPv4 address is automatically generated by the network node, and includes:

The first M bits of the IPv4 address are generated by the network node according to the first M bits of the private IPv4 address, and the first L bits of the last 32-M bits of the IPv4 address are the self-organizing domain of the network node according to the The domain ID is hashed, and the last 32-ML bits in the last 32-M bits of the IPv4 address are performed by the network node according to the device identifier or the MAC address of the interface configured on the network node. Generated by hash operation, M, L are positive integers; or,

The first N bits of the IPv4 address are generated by the network node according to the first N bits of the dedicated IPv4 address, and the first L bits of the last 32-N bits of the IPv4 address are the self-organizing domain of the network node according to the The domain ID is hashed, and the last 32-NL bits in the last 32-N bits of the IPv4 address of the network node are randomly generated by the network node, and N and L are positive integers.
The communication method according to any one of claims 1 to 5, wherein the registration node acquires the indication information of the availability of the IPv4 address, including:

The registration node determines whether the IPv4 address is available;

The registration node determines the indication information according to a result of determining whether the IPv4 is available.
The communication method according to claim 6, wherein the determining, by the registration node, the indication information according to a result of determining whether the IPv4 is available, includes:

When the registration node determines that the IPv4 address is available, determining that the indication information indicates that an IPv4 address of the network node is available; or

When the registration node determines that the IPv4 address is unavailable, it is determined that the indication information includes an IPv4 address increment information or an available IPv4 address.
The communication method according to any one of claims 1 to 5, wherein the registration node acquires the indication information of the availability of the IPv4 address, including:

The registration node sends the IPv4 address to a conflict detection server;

The registration node receives the indication information sent by the conflict detection server, where the indication information indicates that the IPv4 address is available, or the indication information includes an IPv4 address increment information or an available IPv4 address.
The communication method according to claim 8, wherein the sending, by the registration node, the IPv4 address to the conflict detection server comprises:

The registration node sends the IPv4 address and the device identifier to the conflict detection server.
A communication method in a self-organizing network, characterized in that the communication method comprises:

The conflict detection server receives the IPv4 address sent by the registration node;

The conflict detection server determines whether the IPv4 address is available.
The communication method according to claim 10, wherein said IPv4 address is automatically generated by a network node.
The communication method according to claim 11, wherein the conflict detection server receives the IPv4 address sent by the registration node, and includes:

The conflict detection server receives the IPv4 address sent by the registration node and a device identifier of the network node.
The communication method according to any one of claims 10 to 12, wherein the communication method further comprises:

The conflict detection server sends a first conflict detection reply message to the registration node, where the first conflict detection reply message is used to indicate availability of the IPv4 address;

Wherein, when the conflict detection server determines that the IPv4 address is available, the first conflict detection reply message indicates that the IPv4 address is available; or

When the conflict detection server determines that the IPv4 address is unavailable, the first conflict detection information includes IPv4 address increment information or an available IPv4 address.
The communication method according to claim 11 or 12, wherein the communication method further comprises:

The conflict detection server sends a second conflict detection reply message to the network node, where the second conflict detection reply message is used to indicate the availability of the IPv4;

Wherein, when the conflict detection server determines that the IPv4 address is available, the second conflict detection reply message indicates that the IPv4 address is available; or

When the conflict detection server determines that the IPv4 address is unavailable, the second conflict detection information includes IPv4 address increment information or an available IPv4 address.
A communication method in a self-organizing network, characterized in that the communication method comprises:

The network node automatically generates an IPv4 address;

Sending, by the network node, a neighbor discovery AD message to the registration node, where the AD message carries a device identifier of the network node and the IPv4 address;

Receiving, by the network node, a domain certificate and an indication of availability of the IPv4 address, where the domain certificate is sent by the registration node;

The network node establishes an ad hoc control plane ACP with the registration node according to the domain certificate and the indication information.
The communication method according to claim 15, wherein the network node automatically generates an IPv4 address, including:

The network node performs a hash operation according to the device identifier to generate each bit in the IPv4 address; or

The network node performs a hash operation according to the media access control MAC address of the configured interface to generate each bit in the IPv4 address; or

The network node randomly generates each of the IPv4 addresses.
The communication method according to claim 15, wherein the network node automatically generates the IPv4 address, including:

The network node performs a hash operation according to the domain identifier ID of the associated self-organizing domain to generate the first M-bit of the IPv4 address, and performs a hash operation according to the device identifier or the MAC address of the configured interface to generate the IPv4 address. After 32-M bits, M is a positive integer; or,

The network node performs a hash operation according to the domain ID of the associated self-organizing domain to generate the first N bits of the IPv4 address, and randomly generates the last 32-N bits of the IPv4 address, where N is a positive integer.
The communication method according to claim 15, wherein the network node automatically generates the IPv4 address, including:

Generating, by the network node, the first M bits of the IPv4 address according to the first M bits of the dedicated IPv4 address, and performing a hash operation according to the device identifier or the MAC address of the configured interface to generate the last 32-M bits of the IPv4 address, M is a positive integer; or,

The network node generates the first N bits of the IPv4 address according to the first N bits of the dedicated IPv4 address, and randomly generates the last 32-N bits of the IPv4 address, where N is a positive integer.
The communication method according to claim 15, wherein the network node automatically generates the IPv4 address, including:

Generating, by the network node, the first M bits of the IPv4 address according to the first M bits of the dedicated IPv4 address, and performing a hash operation according to the domain ID of the associated self-organizing domain to generate the first L of the last 32-M bits of the IPv4 address Bit, performing a hash operation according to the device identifier or the MAC address of the configured interface to generate a last 32-ML bit in the last 32-M bits of the IPv4 address, where M, L are positive integers; or

The network node generates a first N bits of the IPv4 address according to the first N bits of the dedicated IPv4 address, and performs a hash operation according to the domain ID of the associated self-organizing domain to generate a front L of the last 32-N bits of the IPv4 address. Bits, randomly generating the last 32-NL bits of the last 32-N bits of the IPv4 address, N, L being positive integers.
The communication method according to any one of claims 15 to 19, wherein the indication information indicates that the IPv4 address is available; or

The indication information includes IPv4 address increment information or an available IPv4 address.
The communication method according to any one of claims 15 to 20, wherein the IPv4 availability indication information is transmitted by the registration node; or the IPv4 availability indication information is sent by a collision detection server .
A communication device in a self-organizing network, characterized in that the communication device comprises:

a receiving module, configured to receive an adjacency discovery AD message sent by the network node, where the AD message carries a device identifier of the network node and an IPv4 address of the network node, where the IPv4 address is automatically generated by the network node;

An obtaining module, configured to obtain indication information about the availability of the IPv4 address;

a determining module, configured to determine, according to the device identifier, whether the network node is a legal node;

And a sending module, configured to send the domain certificate and the indication information to the network node when the determining module determines that the network node is a legal node.
The communication device according to claim 22, wherein the IPv4 address is automatically generated by the network node, and includes:

Each bit of the IPv4 address is generated by the network node performing a hash operation according to the device identifier; or

Each bit of the IPv4 address is generated by the network node performing a hash operation according to a medium access control MAC address of an interface configured on the network node; or

Each bit of the IPv4 address is randomly generated by the network node.
The communication device according to claim 22, wherein the IPv4 address is automatically generated by the network node, and includes:

The first M bits of the IPv4 address are generated by the network node performing a hash operation according to the domain identifier ID of the associated self-organizing domain, and the last 32-M bits of the IPv4 address are determined by the network node according to the If the device identifier or the MAC address of the interface configured on the network node is hashed, M is a positive integer; or,

The first N bits of the IPv4 address are generated by the network node performing a hash operation according to the domain ID of the associated self-organizing domain, and the last 32-N bits of the IPv4 address are randomly generated by the network node. N is a positive integer.
The communication device according to claim 22, wherein the IPv4 address is automatically generated by the network node, and includes:

The first M bits of the IPv4 address are generated by the network node according to the first M bits of the dedicated IPv4 address, and the last 32-M bits of the IPv4 address are the network node according to the device identifier or the network node. If the MAC address of the configured interface is hashed, M is a positive integer; or,

The first N bits of the IPv4 address are generated by the network node according to the first N bits of the dedicated IPv4 address, and the last 32-N bits of the IPv4 address are randomly generated by the network node, and N is a positive integer.
The communication device according to claim 22, wherein the IPv4 address is automatically generated by the network node, and includes:

The first M bits of the IPv4 address are generated by the network node according to the first M bits of the private IPv4 address, and the first L bits of the last 32-M bits of the IPv4 address are the self-organizing domain of the network node according to the The domain ID is hashed, and the last 32-ML bits in the last 32-M bits of the IPv4 address are performed by the network node according to the device identifier or the MAC address of the interface configured on the network node. Generated by hash operation, M, L are positive integers; or,

The first N bits of the IPv4 address are generated by the network node according to the first N bits of the dedicated IPv4 address, and the first L bits of the last 32-N bits of the IPv4 address are the self-organizing domain of the network node according to the The domain ID is hashed, and the last 32-NL bits in the last 32-N bits of the IPv4 address of the network node are randomly generated by the network node, and N and L are positive integers.
The communication device according to any one of claims 22 to 26, wherein the acquisition module is specifically configured to:

Determining whether the IPv4 address is available;

The indication information is determined according to a result of determining whether the IPv4 is available.
The communication device according to claim 27, wherein the obtaining module is specifically configured to:

When determining that the IPv4 address is available, determining that the indication information indicates that an IPv4 address of the network node is available; or

When it is determined that the IPv4 address is unavailable, determining that the indication information includes an IPv4 address increment Information or available IPv4 address.
The communication device according to any one of claims 22 to 26, wherein the transmitting module is further configured to:

Sending the IPv4 address to the conflict detection server;

The obtaining module is specifically configured to:

Receiving the indication information sent by the conflict detection server, where the indication information indicates that the IPv4 address is available, or the indication information includes an IPv4 address increment information or an available IPv4 address;
The communication device according to claim 29, wherein the sending module is specifically configured to:

Sending the IPv4 address and the device identifier to the conflict detection server.
A communication device in a self-organizing network, characterized in that the communication device comprises:

a receiving module, configured to receive an IPv4 address sent by the registration node;

A determining module is configured to determine whether the IPv4 address is available.
The communication device of claim 31 wherein said IPv4 address is automatically generated by a network node.
The communication device according to claim 32, wherein the receiving module is specifically configured to:

Receiving the IPv4 address sent by the registration node and a device identifier corresponding to the network node.
The communication device according to any one of claims 31 to 33, wherein the communication device further comprises:

a first sending module, configured to send a first conflict detection reply message to the registration node, where the first conflict detection reply message is used to indicate availability of the IPv4 address;

The first conflict detection reply message indicates that the IPv4 address is available when the determining module determines that the IPv4 address is available; or

When the determining module determines that the IPv4 address is unavailable, the first conflict detection information includes IPv4 address increment information or an available IPv4 address.
The communication device according to claim 32 or 33, wherein the communication device further comprises:

a second sending module, configured to send a second conflict detection reply message to the network node, where the second conflict detection reply message indicates availability of the IPv4;

The second conflict detection reply message indicates that the IPv4 address is available when the determining module determines that the IPv4 address is available; or

When the determining module determines that the IPv4 address is unavailable, the second conflict detection information includes IPv4 address increment information or an available IPv4 address.
A communication device in a self-organizing network, characterized in that the communication device comprises:

An address generation module, configured to automatically generate an IPv4 address;

a sending module, configured to send a neighbor discovery AD message to the registration node, where the AD message carries a device identifier of the communication device and the IPv4 address;

a receiving module, configured to receive indication information about a domain certificate and the availability of the IPv4 address, where the domain certificate is sent by the registration node;

The connection establishing module is configured to establish an ad hoc control plane ACP with the registration node according to the domain certificate and the indication information received by the receiving module.
The communication device according to claim 36, wherein the address generation module is specifically configured to:

Performing a hash operation according to the device identifier to generate each bit in the IPv4 address; or,

Performing a hash operation according to the media access control MAC address of the configured interface to generate each bit in the IPv4 address; or,

Each bit in the IPv4 address is randomly generated.
The communication device according to claim 36, wherein the address generation module is specifically configured to:

Performing a hash operation according to the domain identifier ID of the associated self-organizing domain to generate the first M-bit of the IPv4 address, and performing a hash operation according to the device identifier or the configured MAC address of the interface to generate the last 32-M of the IPv4 address. Bit, M is a positive integer; or,

Performing a hash operation according to the domain ID of the associated self-organizing domain to generate the first N bits of the IPv4 address, and randomly generating the last 32-N bits of the IPv4 address, where N is a positive integer.
The communication device according to claim 36, wherein the address generation module is specifically configured to:

Generating the first M bits of the IPv4 address according to the first M bits of the dedicated IPv4 address, performing a hash operation according to the device identifier or the MAC address of the configured interface to generate the last 32-M bits of the IPv4 address, where M is a positive integer ;or,

Generating the first N bits of the IPv4 address according to the first N bits of the private IPv4 address, and randomly generating the The last 32-N bits of the IPv4 address, N is a positive integer.
The communication device according to claim 36, wherein the address generation module is specifically configured to:

Generating the first M bits of the IPv4 address according to the first M bits of the dedicated IPv4 address, and performing a hash operation according to the domain ID of the associated self-organizing domain to generate the first L bits in the last 32-M bits of the IPv4 address, according to the The MAC address of the device identifier or the configured interface is hashed to generate the last 32-ML bits in the last 32-M bits of the IPv4 address, where M and L are positive integers; or

Generating the first N bits of the IPv4 address according to the first N bits of the private IPv4 address, performing a hash operation according to the domain ID of the associated self-organizing domain to generate the first L bits in the last 32-N bits of the IPv4 address, and randomly generating The last 32-NL bits of the last 32-N bits of the IPv4 address, N, L are positive integers.
The communication device according to any one of claims 36 to 40, wherein the indication information received by the receiving module indicates that the IPv4 address is available; or

The indication information received by the receiving module includes an IPv4 address increment information or an available IPv4 address.
The communication device according to any one of claims 36 to 41, wherein the IPv4 availability indication information received by the receiving module is sent by the registration node; or the receiving module receives The IPv4 availability indication information is sent by the conflict detection server.
A self-organizing network system, comprising: the communication device according to any one of claims 22 to 30, and the communication device according to any one of claims 36 to 42.
A self-organizing network system, comprising: the communication device according to any one of claims 22 to 30, the communication device according to any one of claims 31 to 35, and any one of claims 36 to 40 A communication device as described.